3 * Copyright (C) 2009-2010 Red Hat Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 (* This script generates a large amount of code and documentation for
21 * all the daemon actions.
23 * To add a new action there are only two files you need to change,
24 * this one to describe the interface (see the big table of
25 * 'daemon_functions' below), and daemon/<somefile>.c to write the
28 * After editing this file, run it (./src/generator.ml) to regenerate
29 * all the output files. 'make' will rerun this automatically when
30 * necessary. Note that if you are using a separate build directory
31 * you must run generator.ml from the _source_ directory.
33 * IMPORTANT: This script should NOT print any warnings. If it prints
34 * warnings, you should treat them as errors.
37 * (1) In emacs, install tuareg-mode to display and format OCaml code
38 * correctly. 'vim' comes with a good OCaml editing mode by default.
39 * (2) Read the resources at http://ocaml-tutorial.org/
44 #directory "+xml-light";;
45 #directory "+../pkg-lib/xml-light";; (* for GODI users *)
46 #load "xml-light.cma";;
51 type style = ret * args
53 (* "RErr" as a return value means an int used as a simple error
54 * indication, ie. 0 or -1.
58 (* "RInt" as a return value means an int which is -1 for error
59 * or any value >= 0 on success. Only use this for smallish
60 * positive ints (0 <= i < 2^30).
64 (* "RInt64" is the same as RInt, but is guaranteed to be able
65 * to return a full 64 bit value, _except_ that -1 means error
66 * (so -1 cannot be a valid, non-error return value).
70 (* "RBool" is a bool return value which can be true/false or
75 (* "RConstString" is a string that refers to a constant value.
76 * The return value must NOT be NULL (since NULL indicates
79 * Try to avoid using this. In particular you cannot use this
80 * for values returned from the daemon, because there is no
81 * thread-safe way to return them in the C API.
83 | RConstString of string
85 (* "RConstOptString" is an even more broken version of
86 * "RConstString". The returned string may be NULL and there
87 * is no way to return an error indication. Avoid using this!
89 | RConstOptString of string
91 (* "RString" is a returned string. It must NOT be NULL, since
92 * a NULL return indicates an error. The caller frees this.
96 (* "RStringList" is a list of strings. No string in the list
97 * can be NULL. The caller frees the strings and the array.
99 | RStringList of string
101 (* "RStruct" is a function which returns a single named structure
102 * or an error indication (in C, a struct, and in other languages
103 * with varying representations, but usually very efficient). See
104 * after the function list below for the structures.
106 | RStruct of string * string (* name of retval, name of struct *)
108 (* "RStructList" is a function which returns either a list/array
109 * of structures (could be zero-length), or an error indication.
111 | RStructList of string * string (* name of retval, name of struct *)
113 (* Key-value pairs of untyped strings. Turns into a hashtable or
114 * dictionary in languages which support it. DON'T use this as a
115 * general "bucket" for results. Prefer a stronger typed return
116 * value if one is available, or write a custom struct. Don't use
117 * this if the list could potentially be very long, since it is
118 * inefficient. Keys should be unique. NULLs are not permitted.
120 | RHashtable of string
122 (* "RBufferOut" is handled almost exactly like RString, but
123 * it allows the string to contain arbitrary 8 bit data including
124 * ASCII NUL. In the C API this causes an implicit extra parameter
125 * to be added of type <size_t *size_r>. The extra parameter
126 * returns the actual size of the return buffer in bytes.
128 * Other programming languages support strings with arbitrary 8 bit
131 * At the RPC layer we have to use the opaque<> type instead of
132 * string<>. Returned data is still limited to the max message
135 | RBufferOut of string
137 and args = argt list (* Function parameters, guestfs handle is implicit. *)
139 (* Note in future we should allow a "variable args" parameter as
140 * the final parameter, to allow commands like
141 * chmod mode file [file(s)...]
142 * This is not implemented yet, but many commands (such as chmod)
143 * are currently defined with the argument order keeping this future
144 * possibility in mind.
147 | String of string (* const char *name, cannot be NULL *)
148 | Device of string (* /dev device name, cannot be NULL *)
149 | Pathname of string (* file name, cannot be NULL *)
150 | Dev_or_Path of string (* /dev device name or Pathname, cannot be NULL *)
151 | OptString of string (* const char *name, may be NULL *)
152 | StringList of string(* list of strings (each string cannot be NULL) *)
153 | DeviceList of string(* list of Device names (each cannot be NULL) *)
154 | Bool of string (* boolean *)
155 | Int of string (* int (smallish ints, signed, <= 31 bits) *)
156 | Int64 of string (* any 64 bit int *)
157 (* These are treated as filenames (simple string parameters) in
158 * the C API and bindings. But in the RPC protocol, we transfer
159 * the actual file content up to or down from the daemon.
160 * FileIn: local machine -> daemon (in request)
161 * FileOut: daemon -> local machine (in reply)
162 * In guestfish (only), the special name "-" means read from
163 * stdin or write to stdout.
167 (* Opaque buffer which can contain arbitrary 8 bit data.
168 * In the C API, this is expressed as <const char *, size_t> pair.
169 * Most other languages have a string type which can contain
170 * ASCII NUL. We use whatever type is appropriate for each
172 * Buffers are limited by the total message size. To transfer
173 * large blocks of data, use FileIn/FileOut parameters instead.
174 * To return an arbitrary buffer, use RBufferOut.
179 | ProtocolLimitWarning (* display warning about protocol size limits *)
180 | DangerWillRobinson (* flags particularly dangerous commands *)
181 | FishAlias of string (* provide an alias for this cmd in guestfish *)
182 | FishOutput of fish_output_t (* how to display output in guestfish *)
183 | NotInFish (* do not export via guestfish *)
184 | NotInDocs (* do not add this function to documentation *)
185 | DeprecatedBy of string (* function is deprecated, use .. instead *)
186 | Optional of string (* function is part of an optional group *)
189 | FishOutputOctal (* for int return, print in octal *)
190 | FishOutputHexadecimal (* for int return, print in hex *)
192 (* You can supply zero or as many tests as you want per API call.
194 * Note that the test environment has 3 block devices, of size 500MB,
195 * 50MB and 10MB (respectively /dev/sda, /dev/sdb, /dev/sdc), and
196 * a fourth ISO block device with some known files on it (/dev/sdd).
198 * Note for partitioning purposes, the 500MB device has 1015 cylinders.
199 * Number of cylinders was 63 for IDE emulated disks with precisely
200 * the same size. How exactly this is calculated is a mystery.
202 * The ISO block device (/dev/sdd) comes from images/test.iso.
204 * To be able to run the tests in a reasonable amount of time,
205 * the virtual machine and block devices are reused between tests.
206 * So don't try testing kill_subprocess :-x
208 * Between each test we blockdev-setrw, umount-all, lvm-remove-all.
210 * Don't assume anything about the previous contents of the block
211 * devices. Use 'Init*' to create some initial scenarios.
213 * You can add a prerequisite clause to any individual test. This
214 * is a run-time check, which, if it fails, causes the test to be
215 * skipped. Useful if testing a command which might not work on
216 * all variations of libguestfs builds. A test that has prerequisite
217 * of 'Always' is run unconditionally.
219 * In addition, packagers can skip individual tests by setting the
220 * environment variables: eg:
221 * SKIP_TEST_<CMD>_<NUM>=1 SKIP_TEST_COMMAND_3=1 (skips test #3 of command)
222 * SKIP_TEST_<CMD>=1 SKIP_TEST_ZEROFREE=1 (skips all zerofree tests)
224 type tests = (test_init * test_prereq * test) list
226 (* Run the command sequence and just expect nothing to fail. *)
229 (* Run the command sequence and expect the output of the final
230 * command to be the string.
232 | TestOutput of seq * string
234 (* Run the command sequence and expect the output of the final
235 * command to be the list of strings.
237 | TestOutputList of seq * string list
239 (* Run the command sequence and expect the output of the final
240 * command to be the list of block devices (could be either
241 * "/dev/sd.." or "/dev/hd.." form - we don't check the 5th
242 * character of each string).
244 | TestOutputListOfDevices of seq * string list
246 (* Run the command sequence and expect the output of the final
247 * command to be the integer.
249 | TestOutputInt of seq * int
251 (* Run the command sequence and expect the output of the final
252 * command to be <op> <int>, eg. ">=", "1".
254 | TestOutputIntOp of seq * string * int
256 (* Run the command sequence and expect the output of the final
257 * command to be a true value (!= 0 or != NULL).
259 | TestOutputTrue of seq
261 (* Run the command sequence and expect the output of the final
262 * command to be a false value (== 0 or == NULL, but not an error).
264 | TestOutputFalse of seq
266 (* Run the command sequence and expect the output of the final
267 * command to be a list of the given length (but don't care about
270 | TestOutputLength of seq * int
272 (* Run the command sequence and expect the output of the final
273 * command to be a buffer (RBufferOut), ie. string + size.
275 | TestOutputBuffer of seq * string
277 (* Run the command sequence and expect the output of the final
278 * command to be a structure.
280 | TestOutputStruct of seq * test_field_compare list
282 (* Run the command sequence and expect the final command (only)
285 | TestLastFail of seq
287 and test_field_compare =
288 | CompareWithInt of string * int
289 | CompareWithIntOp of string * string * int
290 | CompareWithString of string * string
291 | CompareFieldsIntEq of string * string
292 | CompareFieldsStrEq of string * string
294 (* Test prerequisites. *)
296 (* Test always runs. *)
299 (* Test is currently disabled - eg. it fails, or it tests some
300 * unimplemented feature.
304 (* 'string' is some C code (a function body) that should return
305 * true or false. The test will run if the code returns true.
309 (* As for 'If' but the test runs _unless_ the code returns true. *)
312 (* Some initial scenarios for testing. *)
314 (* Do nothing, block devices could contain random stuff including
315 * LVM PVs, and some filesystems might be mounted. This is usually
320 (* Block devices are empty and no filesystems are mounted. *)
323 (* /dev/sda contains a single partition /dev/sda1, with random
324 * content. /dev/sdb and /dev/sdc may have random content.
329 (* /dev/sda contains a single partition /dev/sda1, which is formatted
330 * as ext2, empty [except for lost+found] and mounted on /.
331 * /dev/sdb and /dev/sdc may have random content.
337 * /dev/sda1 (is a PV):
338 * /dev/VG/LV (size 8MB):
339 * formatted as ext2, empty [except for lost+found], mounted on /
340 * /dev/sdb and /dev/sdc may have random content.
344 (* /dev/sdd (the ISO, see images/ directory in source)
349 (* Sequence of commands for testing. *)
351 and cmd = string list
353 (* Note about long descriptions: When referring to another
354 * action, use the format C<guestfs_other> (ie. the full name of
355 * the C function). This will be replaced as appropriate in other
358 * Apart from that, long descriptions are just perldoc paragraphs.
361 (* Generate a random UUID (used in tests). *)
363 let chan = open_process_in "uuidgen" in
364 let uuid = input_line chan in
365 (match close_process_in chan with
368 failwith "uuidgen: process exited with non-zero status"
369 | WSIGNALED _ | WSTOPPED _ ->
370 failwith "uuidgen: process signalled or stopped by signal"
374 (* These test functions are used in the language binding tests. *)
376 let test_all_args = [
379 StringList "strlist";
388 let test_all_rets = [
389 (* except for RErr, which is tested thoroughly elsewhere *)
390 "test0rint", RInt "valout";
391 "test0rint64", RInt64 "valout";
392 "test0rbool", RBool "valout";
393 "test0rconststring", RConstString "valout";
394 "test0rconstoptstring", RConstOptString "valout";
395 "test0rstring", RString "valout";
396 "test0rstringlist", RStringList "valout";
397 "test0rstruct", RStruct ("valout", "lvm_pv");
398 "test0rstructlist", RStructList ("valout", "lvm_pv");
399 "test0rhashtable", RHashtable "valout";
402 let test_functions = [
403 ("test0", (RErr, test_all_args), -1, [NotInFish; NotInDocs],
405 "internal test function - do not use",
407 This is an internal test function which is used to test whether
408 the automatically generated bindings can handle every possible
409 parameter type correctly.
411 It echos the contents of each parameter to stdout.
413 You probably don't want to call this function.");
417 [(name, (ret, [String "val"]), -1, [NotInFish; NotInDocs],
419 "internal test function - do not use",
421 This is an internal test function which is used to test whether
422 the automatically generated bindings can handle every possible
423 return type correctly.
425 It converts string C<val> to the return type.
427 You probably don't want to call this function.");
428 (name ^ "err", (ret, []), -1, [NotInFish; NotInDocs],
430 "internal test function - do not use",
432 This is an internal test function which is used to test whether
433 the automatically generated bindings can handle every possible
434 return type correctly.
436 This function always returns an error.
438 You probably don't want to call this function.")]
442 (* non_daemon_functions are any functions which don't get processed
443 * in the daemon, eg. functions for setting and getting local
444 * configuration values.
447 let non_daemon_functions = test_functions @ [
448 ("launch", (RErr, []), -1, [FishAlias "run"],
450 "launch the qemu subprocess",
452 Internally libguestfs is implemented by running a virtual machine
455 You should call this after configuring the handle
456 (eg. adding drives) but before performing any actions.");
458 ("wait_ready", (RErr, []), -1, [NotInFish],
460 "wait until the qemu subprocess launches (no op)",
462 This function is a no op.
464 In versions of the API E<lt> 1.0.71 you had to call this function
465 just after calling C<guestfs_launch> to wait for the launch
466 to complete. However this is no longer necessary because
467 C<guestfs_launch> now does the waiting.
469 If you see any calls to this function in code then you can just
470 remove them, unless you want to retain compatibility with older
471 versions of the API.");
473 ("kill_subprocess", (RErr, []), -1, [],
475 "kill the qemu subprocess",
477 This kills the qemu subprocess. You should never need to call this.");
479 ("add_drive", (RErr, [String "filename"]), -1, [FishAlias "add"],
481 "add an image to examine or modify",
483 This function adds a virtual machine disk image C<filename> to the
484 guest. The first time you call this function, the disk appears as IDE
485 disk 0 (C</dev/sda>) in the guest, the second time as C</dev/sdb>, and
488 You don't necessarily need to be root when using libguestfs. However
489 you obviously do need sufficient permissions to access the filename
490 for whatever operations you want to perform (ie. read access if you
491 just want to read the image or write access if you want to modify the
494 This is equivalent to the qemu parameter
495 C<-drive file=filename,cache=off,if=...>.
497 C<cache=off> is omitted in cases where it is not supported by
498 the underlying filesystem.
500 C<if=...> is set at compile time by the configuration option
501 C<./configure --with-drive-if=...>. In the rare case where you
502 might need to change this at run time, use C<guestfs_add_drive_with_if>
503 or C<guestfs_add_drive_ro_with_if>.
505 Note that this call checks for the existence of C<filename>. This
506 stops you from specifying other types of drive which are supported
507 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
508 the general C<guestfs_config> call instead.");
510 ("add_cdrom", (RErr, [String "filename"]), -1, [FishAlias "cdrom"],
512 "add a CD-ROM disk image to examine",
514 This function adds a virtual CD-ROM disk image to the guest.
516 This is equivalent to the qemu parameter C<-cdrom filename>.
524 This call checks for the existence of C<filename>. This
525 stops you from specifying other types of drive which are supported
526 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
527 the general C<guestfs_config> call instead.
531 If you just want to add an ISO file (often you use this as an
532 efficient way to transfer large files into the guest), then you
533 should probably use C<guestfs_add_drive_ro> instead.
537 ("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
539 "add a drive in snapshot mode (read-only)",
541 This adds a drive in snapshot mode, making it effectively
544 Note that writes to the device are allowed, and will be seen for
545 the duration of the guestfs handle, but they are written
546 to a temporary file which is discarded as soon as the guestfs
547 handle is closed. We don't currently have any method to enable
548 changes to be committed, although qemu can support this.
550 This is equivalent to the qemu parameter
551 C<-drive file=filename,snapshot=on,readonly=on,if=...>.
553 C<if=...> is set at compile time by the configuration option
554 C<./configure --with-drive-if=...>. In the rare case where you
555 might need to change this at run time, use C<guestfs_add_drive_with_if>
556 or C<guestfs_add_drive_ro_with_if>.
558 C<readonly=on> is only added where qemu supports this option.
560 Note that this call checks for the existence of C<filename>. This
561 stops you from specifying other types of drive which are supported
562 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
563 the general C<guestfs_config> call instead.");
565 ("config", (RErr, [String "qemuparam"; OptString "qemuvalue"]), -1, [],
567 "add qemu parameters",
569 This can be used to add arbitrary qemu command line parameters
570 of the form C<-param value>. Actually it's not quite arbitrary - we
571 prevent you from setting some parameters which would interfere with
572 parameters that we use.
574 The first character of C<param> string must be a C<-> (dash).
576 C<value> can be NULL.");
578 ("set_qemu", (RErr, [OptString "qemu"]), -1, [FishAlias "qemu"],
580 "set the qemu binary",
582 Set the qemu binary that we will use.
584 The default is chosen when the library was compiled by the
587 You can also override this by setting the C<LIBGUESTFS_QEMU>
588 environment variable.
590 Setting C<qemu> to C<NULL> restores the default qemu binary.
592 Note that you should call this function as early as possible
593 after creating the handle. This is because some pre-launch
594 operations depend on testing qemu features (by running C<qemu -help>).
595 If the qemu binary changes, we don't retest features, and
596 so you might see inconsistent results. Using the environment
597 variable C<LIBGUESTFS_QEMU> is safest of all since that picks
598 the qemu binary at the same time as the handle is created.");
600 ("get_qemu", (RConstString "qemu", []), -1, [],
601 [InitNone, Always, TestRun (
603 "get the qemu binary",
605 Return the current qemu binary.
607 This is always non-NULL. If it wasn't set already, then this will
608 return the default qemu binary name.");
610 ("set_path", (RErr, [OptString "searchpath"]), -1, [FishAlias "path"],
612 "set the search path",
614 Set the path that libguestfs searches for kernel and initrd.img.
616 The default is C<$libdir/guestfs> unless overridden by setting
617 C<LIBGUESTFS_PATH> environment variable.
619 Setting C<path> to C<NULL> restores the default path.");
621 ("get_path", (RConstString "path", []), -1, [],
622 [InitNone, Always, TestRun (
624 "get the search path",
626 Return the current search path.
628 This is always non-NULL. If it wasn't set already, then this will
629 return the default path.");
631 ("set_append", (RErr, [OptString "append"]), -1, [FishAlias "append"],
633 "add options to kernel command line",
635 This function is used to add additional options to the
636 guest kernel command line.
638 The default is C<NULL> unless overridden by setting
639 C<LIBGUESTFS_APPEND> environment variable.
641 Setting C<append> to C<NULL> means I<no> additional options
642 are passed (libguestfs always adds a few of its own).");
644 ("get_append", (RConstOptString "append", []), -1, [],
645 (* This cannot be tested with the current framework. The
646 * function can return NULL in normal operations, which the
647 * test framework interprets as an error.
650 "get the additional kernel options",
652 Return the additional kernel options which are added to the
653 guest kernel command line.
655 If C<NULL> then no options are added.");
657 ("set_autosync", (RErr, [Bool "autosync"]), -1, [FishAlias "autosync"],
661 If C<autosync> is true, this enables autosync. Libguestfs will make a
662 best effort attempt to run C<guestfs_umount_all> followed by
663 C<guestfs_sync> when the handle is closed
664 (also if the program exits without closing handles).
666 This is disabled by default (except in guestfish where it is
667 enabled by default).");
669 ("get_autosync", (RBool "autosync", []), -1, [],
670 [InitNone, Always, TestRun (
671 [["get_autosync"]])],
674 Get the autosync flag.");
676 ("set_verbose", (RErr, [Bool "verbose"]), -1, [FishAlias "verbose"],
680 If C<verbose> is true, this turns on verbose messages (to C<stderr>).
682 Verbose messages are disabled unless the environment variable
683 C<LIBGUESTFS_DEBUG> is defined and set to C<1>.");
685 ("get_verbose", (RBool "verbose", []), -1, [],
689 This returns the verbose messages flag.");
691 ("is_ready", (RBool "ready", []), -1, [],
692 [InitNone, Always, TestOutputTrue (
694 "is ready to accept commands",
696 This returns true iff this handle is ready to accept commands
697 (in the C<READY> state).
699 For more information on states, see L<guestfs(3)>.");
701 ("is_config", (RBool "config", []), -1, [],
702 [InitNone, Always, TestOutputFalse (
704 "is in configuration state",
706 This returns true iff this handle is being configured
707 (in the C<CONFIG> state).
709 For more information on states, see L<guestfs(3)>.");
711 ("is_launching", (RBool "launching", []), -1, [],
712 [InitNone, Always, TestOutputFalse (
713 [["is_launching"]])],
714 "is launching subprocess",
716 This returns true iff this handle is launching the subprocess
717 (in the C<LAUNCHING> state).
719 For more information on states, see L<guestfs(3)>.");
721 ("is_busy", (RBool "busy", []), -1, [],
722 [InitNone, Always, TestOutputFalse (
724 "is busy processing a command",
726 This returns true iff this handle is busy processing a command
727 (in the C<BUSY> state).
729 For more information on states, see L<guestfs(3)>.");
731 ("get_state", (RInt "state", []), -1, [],
733 "get the current state",
735 This returns the current state as an opaque integer. This is
736 only useful for printing debug and internal error messages.
738 For more information on states, see L<guestfs(3)>.");
740 ("set_memsize", (RErr, [Int "memsize"]), -1, [FishAlias "memsize"],
741 [InitNone, Always, TestOutputInt (
742 [["set_memsize"; "500"];
743 ["get_memsize"]], 500)],
744 "set memory allocated to the qemu subprocess",
746 This sets the memory size in megabytes allocated to the
747 qemu subprocess. This only has any effect if called before
750 You can also change this by setting the environment
751 variable C<LIBGUESTFS_MEMSIZE> before the handle is
754 For more information on the architecture of libguestfs,
755 see L<guestfs(3)>.");
757 ("get_memsize", (RInt "memsize", []), -1, [],
758 [InitNone, Always, TestOutputIntOp (
759 [["get_memsize"]], ">=", 256)],
760 "get memory allocated to the qemu subprocess",
762 This gets the memory size in megabytes allocated to the
765 If C<guestfs_set_memsize> was not called
766 on this handle, and if C<LIBGUESTFS_MEMSIZE> was not set,
767 then this returns the compiled-in default value for memsize.
769 For more information on the architecture of libguestfs,
770 see L<guestfs(3)>.");
772 ("get_pid", (RInt "pid", []), -1, [FishAlias "pid"],
773 [InitNone, Always, TestOutputIntOp (
774 [["get_pid"]], ">=", 1)],
775 "get PID of qemu subprocess",
777 Return the process ID of the qemu subprocess. If there is no
778 qemu subprocess, then this will return an error.
780 This is an internal call used for debugging and testing.");
782 ("version", (RStruct ("version", "version"), []), -1, [],
783 [InitNone, Always, TestOutputStruct (
784 [["version"]], [CompareWithInt ("major", 1)])],
785 "get the library version number",
787 Return the libguestfs version number that the program is linked
790 Note that because of dynamic linking this is not necessarily
791 the version of libguestfs that you compiled against. You can
792 compile the program, and then at runtime dynamically link
793 against a completely different C<libguestfs.so> library.
795 This call was added in version C<1.0.58>. In previous
796 versions of libguestfs there was no way to get the version
797 number. From C code you can use dynamic linker functions
798 to find out if this symbol exists (if it doesn't, then
799 it's an earlier version).
801 The call returns a structure with four elements. The first
802 three (C<major>, C<minor> and C<release>) are numbers and
803 correspond to the usual version triplet. The fourth element
804 (C<extra>) is a string and is normally empty, but may be
805 used for distro-specific information.
807 To construct the original version string:
808 C<$major.$minor.$release$extra>
810 See also: L<guestfs(3)/LIBGUESTFS VERSION NUMBERS>.
812 I<Note:> Don't use this call to test for availability
813 of features. In enterprise distributions we backport
814 features from later versions into earlier versions,
815 making this an unreliable way to test for features.
816 Use C<guestfs_available> instead.");
818 ("set_selinux", (RErr, [Bool "selinux"]), -1, [FishAlias "selinux"],
819 [InitNone, Always, TestOutputTrue (
820 [["set_selinux"; "true"];
822 "set SELinux enabled or disabled at appliance boot",
824 This sets the selinux flag that is passed to the appliance
825 at boot time. The default is C<selinux=0> (disabled).
827 Note that if SELinux is enabled, it is always in
828 Permissive mode (C<enforcing=0>).
830 For more information on the architecture of libguestfs,
831 see L<guestfs(3)>.");
833 ("get_selinux", (RBool "selinux", []), -1, [],
835 "get SELinux enabled flag",
837 This returns the current setting of the selinux flag which
838 is passed to the appliance at boot time. See C<guestfs_set_selinux>.
840 For more information on the architecture of libguestfs,
841 see L<guestfs(3)>.");
843 ("set_trace", (RErr, [Bool "trace"]), -1, [FishAlias "trace"],
844 [InitNone, Always, TestOutputFalse (
845 [["set_trace"; "false"];
847 "enable or disable command traces",
849 If the command trace flag is set to 1, then commands are
850 printed on stdout before they are executed in a format
851 which is very similar to the one used by guestfish. In
852 other words, you can run a program with this enabled, and
853 you will get out a script which you can feed to guestfish
854 to perform the same set of actions.
856 If you want to trace C API calls into libguestfs (and
857 other libraries) then possibly a better way is to use
858 the external ltrace(1) command.
860 Command traces are disabled unless the environment variable
861 C<LIBGUESTFS_TRACE> is defined and set to C<1>.");
863 ("get_trace", (RBool "trace", []), -1, [],
865 "get command trace enabled flag",
867 Return the command trace flag.");
869 ("set_direct", (RErr, [Bool "direct"]), -1, [FishAlias "direct"],
870 [InitNone, Always, TestOutputFalse (
871 [["set_direct"; "false"];
873 "enable or disable direct appliance mode",
875 If the direct appliance mode flag is enabled, then stdin and
876 stdout are passed directly through to the appliance once it
879 One consequence of this is that log messages aren't caught
880 by the library and handled by C<guestfs_set_log_message_callback>,
881 but go straight to stdout.
883 You probably don't want to use this unless you know what you
886 The default is disabled.");
888 ("get_direct", (RBool "direct", []), -1, [],
890 "get direct appliance mode flag",
892 Return the direct appliance mode flag.");
894 ("set_recovery_proc", (RErr, [Bool "recoveryproc"]), -1, [FishAlias "recovery-proc"],
895 [InitNone, Always, TestOutputTrue (
896 [["set_recovery_proc"; "true"];
897 ["get_recovery_proc"]])],
898 "enable or disable the recovery process",
900 If this is called with the parameter C<false> then
901 C<guestfs_launch> does not create a recovery process. The
902 purpose of the recovery process is to stop runaway qemu
903 processes in the case where the main program aborts abruptly.
905 This only has any effect if called before C<guestfs_launch>,
906 and the default is true.
908 About the only time when you would want to disable this is
909 if the main process will fork itself into the background
910 (\"daemonize\" itself). In this case the recovery process
911 thinks that the main program has disappeared and so kills
912 qemu, which is not very helpful.");
914 ("get_recovery_proc", (RBool "recoveryproc", []), -1, [],
916 "get recovery process enabled flag",
918 Return the recovery process enabled flag.");
920 ("add_drive_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
922 "add a drive specifying the QEMU block emulation to use",
924 This is the same as C<guestfs_add_drive> but it allows you
925 to specify the QEMU interface emulation to use at run time.");
927 ("add_drive_ro_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
929 "add a drive read-only specifying the QEMU block emulation to use",
931 This is the same as C<guestfs_add_drive_ro> but it allows you
932 to specify the QEMU interface emulation to use at run time.");
936 (* daemon_functions are any functions which cause some action
937 * to take place in the daemon.
940 let daemon_functions = [
941 ("mount", (RErr, [Device "device"; String "mountpoint"]), 1, [],
942 [InitEmpty, Always, TestOutput (
943 [["part_disk"; "/dev/sda"; "mbr"];
944 ["mkfs"; "ext2"; "/dev/sda1"];
945 ["mount"; "/dev/sda1"; "/"];
946 ["write"; "/new"; "new file contents"];
947 ["cat"; "/new"]], "new file contents")],
948 "mount a guest disk at a position in the filesystem",
950 Mount a guest disk at a position in the filesystem. Block devices
951 are named C</dev/sda>, C</dev/sdb> and so on, as they were added to
952 the guest. If those block devices contain partitions, they will have
953 the usual names (eg. C</dev/sda1>). Also LVM C</dev/VG/LV>-style
956 The rules are the same as for L<mount(2)>: A filesystem must
957 first be mounted on C</> before others can be mounted. Other
958 filesystems can only be mounted on directories which already
961 The mounted filesystem is writable, if we have sufficient permissions
962 on the underlying device.
965 When you use this call, the filesystem options C<sync> and C<noatime>
966 are set implicitly. This was originally done because we thought it
967 would improve reliability, but it turns out that I<-o sync> has a
968 very large negative performance impact and negligible effect on
969 reliability. Therefore we recommend that you avoid using
970 C<guestfs_mount> in any code that needs performance, and instead
971 use C<guestfs_mount_options> (use an empty string for the first
972 parameter if you don't want any options).");
974 ("sync", (RErr, []), 2, [],
975 [ InitEmpty, Always, TestRun [["sync"]]],
976 "sync disks, writes are flushed through to the disk image",
978 This syncs the disk, so that any writes are flushed through to the
979 underlying disk image.
981 You should always call this if you have modified a disk image, before
982 closing the handle.");
984 ("touch", (RErr, [Pathname "path"]), 3, [],
985 [InitBasicFS, Always, TestOutputTrue (
987 ["exists"; "/new"]])],
988 "update file timestamps or create a new file",
990 Touch acts like the L<touch(1)> command. It can be used to
991 update the timestamps on a file, or, if the file does not exist,
992 to create a new zero-length file.");
994 ("cat", (RString "content", [Pathname "path"]), 4, [ProtocolLimitWarning],
995 [InitISOFS, Always, TestOutput (
996 [["cat"; "/known-2"]], "abcdef\n")],
997 "list the contents of a file",
999 Return the contents of the file named C<path>.
1001 Note that this function cannot correctly handle binary files
1002 (specifically, files containing C<\\0> character which is treated
1003 as end of string). For those you need to use the C<guestfs_read_file>
1004 or C<guestfs_download> functions which have a more complex interface.");
1006 ("ll", (RString "listing", [Pathname "directory"]), 5, [],
1007 [], (* XXX Tricky to test because it depends on the exact format
1008 * of the 'ls -l' command, which changes between F10 and F11.
1010 "list the files in a directory (long format)",
1012 List the files in C<directory> (relative to the root directory,
1013 there is no cwd) in the format of 'ls -la'.
1015 This command is mostly useful for interactive sessions. It
1016 is I<not> intended that you try to parse the output string.");
1018 ("ls", (RStringList "listing", [Pathname "directory"]), 6, [],
1019 [InitBasicFS, Always, TestOutputList (
1021 ["touch"; "/newer"];
1022 ["touch"; "/newest"];
1023 ["ls"; "/"]], ["lost+found"; "new"; "newer"; "newest"])],
1024 "list the files in a directory",
1026 List the files in C<directory> (relative to the root directory,
1027 there is no cwd). The '.' and '..' entries are not returned, but
1028 hidden files are shown.
1030 This command is mostly useful for interactive sessions. Programs
1031 should probably use C<guestfs_readdir> instead.");
1033 ("list_devices", (RStringList "devices", []), 7, [],
1034 [InitEmpty, Always, TestOutputListOfDevices (
1035 [["list_devices"]], ["/dev/sda"; "/dev/sdb"; "/dev/sdc"; "/dev/sdd"])],
1036 "list the block devices",
1038 List all the block devices.
1040 The full block device names are returned, eg. C</dev/sda>");
1042 ("list_partitions", (RStringList "partitions", []), 8, [],
1043 [InitBasicFS, Always, TestOutputListOfDevices (
1044 [["list_partitions"]], ["/dev/sda1"]);
1045 InitEmpty, Always, TestOutputListOfDevices (
1046 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1047 ["list_partitions"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1048 "list the partitions",
1050 List all the partitions detected on all block devices.
1052 The full partition device names are returned, eg. C</dev/sda1>
1054 This does not return logical volumes. For that you will need to
1055 call C<guestfs_lvs>.");
1057 ("pvs", (RStringList "physvols", []), 9, [Optional "lvm2"],
1058 [InitBasicFSonLVM, Always, TestOutputListOfDevices (
1059 [["pvs"]], ["/dev/sda1"]);
1060 InitEmpty, Always, TestOutputListOfDevices (
1061 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1062 ["pvcreate"; "/dev/sda1"];
1063 ["pvcreate"; "/dev/sda2"];
1064 ["pvcreate"; "/dev/sda3"];
1065 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1066 "list the LVM physical volumes (PVs)",
1068 List all the physical volumes detected. This is the equivalent
1069 of the L<pvs(8)> command.
1071 This returns a list of just the device names that contain
1072 PVs (eg. C</dev/sda2>).
1074 See also C<guestfs_pvs_full>.");
1076 ("vgs", (RStringList "volgroups", []), 10, [Optional "lvm2"],
1077 [InitBasicFSonLVM, Always, TestOutputList (
1079 InitEmpty, Always, TestOutputList (
1080 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1081 ["pvcreate"; "/dev/sda1"];
1082 ["pvcreate"; "/dev/sda2"];
1083 ["pvcreate"; "/dev/sda3"];
1084 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1085 ["vgcreate"; "VG2"; "/dev/sda3"];
1086 ["vgs"]], ["VG1"; "VG2"])],
1087 "list the LVM volume groups (VGs)",
1089 List all the volumes groups detected. This is the equivalent
1090 of the L<vgs(8)> command.
1092 This returns a list of just the volume group names that were
1093 detected (eg. C<VolGroup00>).
1095 See also C<guestfs_vgs_full>.");
1097 ("lvs", (RStringList "logvols", []), 11, [Optional "lvm2"],
1098 [InitBasicFSonLVM, Always, TestOutputList (
1099 [["lvs"]], ["/dev/VG/LV"]);
1100 InitEmpty, Always, TestOutputList (
1101 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1102 ["pvcreate"; "/dev/sda1"];
1103 ["pvcreate"; "/dev/sda2"];
1104 ["pvcreate"; "/dev/sda3"];
1105 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1106 ["vgcreate"; "VG2"; "/dev/sda3"];
1107 ["lvcreate"; "LV1"; "VG1"; "50"];
1108 ["lvcreate"; "LV2"; "VG1"; "50"];
1109 ["lvcreate"; "LV3"; "VG2"; "50"];
1110 ["lvs"]], ["/dev/VG1/LV1"; "/dev/VG1/LV2"; "/dev/VG2/LV3"])],
1111 "list the LVM logical volumes (LVs)",
1113 List all the logical volumes detected. This is the equivalent
1114 of the L<lvs(8)> command.
1116 This returns a list of the logical volume device names
1117 (eg. C</dev/VolGroup00/LogVol00>).
1119 See also C<guestfs_lvs_full>.");
1121 ("pvs_full", (RStructList ("physvols", "lvm_pv"), []), 12, [Optional "lvm2"],
1122 [], (* XXX how to test? *)
1123 "list the LVM physical volumes (PVs)",
1125 List all the physical volumes detected. This is the equivalent
1126 of the L<pvs(8)> command. The \"full\" version includes all fields.");
1128 ("vgs_full", (RStructList ("volgroups", "lvm_vg"), []), 13, [Optional "lvm2"],
1129 [], (* XXX how to test? *)
1130 "list the LVM volume groups (VGs)",
1132 List all the volumes groups detected. This is the equivalent
1133 of the L<vgs(8)> command. The \"full\" version includes all fields.");
1135 ("lvs_full", (RStructList ("logvols", "lvm_lv"), []), 14, [Optional "lvm2"],
1136 [], (* XXX how to test? *)
1137 "list the LVM logical volumes (LVs)",
1139 List all the logical volumes detected. This is the equivalent
1140 of the L<lvs(8)> command. The \"full\" version includes all fields.");
1142 ("read_lines", (RStringList "lines", [Pathname "path"]), 15, [],
1143 [InitISOFS, Always, TestOutputList (
1144 [["read_lines"; "/known-4"]], ["abc"; "def"; "ghi"]);
1145 InitISOFS, Always, TestOutputList (
1146 [["read_lines"; "/empty"]], [])],
1147 "read file as lines",
1149 Return the contents of the file named C<path>.
1151 The file contents are returned as a list of lines. Trailing
1152 C<LF> and C<CRLF> character sequences are I<not> returned.
1154 Note that this function cannot correctly handle binary files
1155 (specifically, files containing C<\\0> character which is treated
1156 as end of line). For those you need to use the C<guestfs_read_file>
1157 function which has a more complex interface.");
1159 ("aug_init", (RErr, [Pathname "root"; Int "flags"]), 16, [Optional "augeas"],
1160 [], (* XXX Augeas code needs tests. *)
1161 "create a new Augeas handle",
1163 Create a new Augeas handle for editing configuration files.
1164 If there was any previous Augeas handle associated with this
1165 guestfs session, then it is closed.
1167 You must call this before using any other C<guestfs_aug_*>
1170 C<root> is the filesystem root. C<root> must not be NULL,
1173 The flags are the same as the flags defined in
1174 E<lt>augeas.hE<gt>, the logical I<or> of the following
1179 =item C<AUG_SAVE_BACKUP> = 1
1181 Keep the original file with a C<.augsave> extension.
1183 =item C<AUG_SAVE_NEWFILE> = 2
1185 Save changes into a file with extension C<.augnew>, and
1186 do not overwrite original. Overrides C<AUG_SAVE_BACKUP>.
1188 =item C<AUG_TYPE_CHECK> = 4
1190 Typecheck lenses (can be expensive).
1192 =item C<AUG_NO_STDINC> = 8
1194 Do not use standard load path for modules.
1196 =item C<AUG_SAVE_NOOP> = 16
1198 Make save a no-op, just record what would have been changed.
1200 =item C<AUG_NO_LOAD> = 32
1202 Do not load the tree in C<guestfs_aug_init>.
1206 To close the handle, you can call C<guestfs_aug_close>.
1208 To find out more about Augeas, see L<http://augeas.net/>.");
1210 ("aug_close", (RErr, []), 26, [Optional "augeas"],
1211 [], (* XXX Augeas code needs tests. *)
1212 "close the current Augeas handle",
1214 Close the current Augeas handle and free up any resources
1215 used by it. After calling this, you have to call
1216 C<guestfs_aug_init> again before you can use any other
1217 Augeas functions.");
1219 ("aug_defvar", (RInt "nrnodes", [String "name"; OptString "expr"]), 17, [Optional "augeas"],
1220 [], (* XXX Augeas code needs tests. *)
1221 "define an Augeas variable",
1223 Defines an Augeas variable C<name> whose value is the result
1224 of evaluating C<expr>. If C<expr> is NULL, then C<name> is
1227 On success this returns the number of nodes in C<expr>, or
1228 C<0> if C<expr> evaluates to something which is not a nodeset.");
1230 ("aug_defnode", (RStruct ("nrnodescreated", "int_bool"), [String "name"; String "expr"; String "val"]), 18, [Optional "augeas"],
1231 [], (* XXX Augeas code needs tests. *)
1232 "define an Augeas node",
1234 Defines a variable C<name> whose value is the result of
1237 If C<expr> evaluates to an empty nodeset, a node is created,
1238 equivalent to calling C<guestfs_aug_set> C<expr>, C<value>.
1239 C<name> will be the nodeset containing that single node.
1241 On success this returns a pair containing the
1242 number of nodes in the nodeset, and a boolean flag
1243 if a node was created.");
1245 ("aug_get", (RString "val", [String "augpath"]), 19, [Optional "augeas"],
1246 [], (* XXX Augeas code needs tests. *)
1247 "look up the value of an Augeas path",
1249 Look up the value associated with C<path>. If C<path>
1250 matches exactly one node, the C<value> is returned.");
1252 ("aug_set", (RErr, [String "augpath"; String "val"]), 20, [Optional "augeas"],
1253 [], (* XXX Augeas code needs tests. *)
1254 "set Augeas path to value",
1256 Set the value associated with C<path> to C<val>.
1258 In the Augeas API, it is possible to clear a node by setting
1259 the value to NULL. Due to an oversight in the libguestfs API
1260 you cannot do that with this call. Instead you must use the
1261 C<guestfs_aug_clear> call.");
1263 ("aug_insert", (RErr, [String "augpath"; String "label"; Bool "before"]), 21, [Optional "augeas"],
1264 [], (* XXX Augeas code needs tests. *)
1265 "insert a sibling Augeas node",
1267 Create a new sibling C<label> for C<path>, inserting it into
1268 the tree before or after C<path> (depending on the boolean
1271 C<path> must match exactly one existing node in the tree, and
1272 C<label> must be a label, ie. not contain C</>, C<*> or end
1273 with a bracketed index C<[N]>.");
1275 ("aug_rm", (RInt "nrnodes", [String "augpath"]), 22, [Optional "augeas"],
1276 [], (* XXX Augeas code needs tests. *)
1277 "remove an Augeas path",
1279 Remove C<path> and all of its children.
1281 On success this returns the number of entries which were removed.");
1283 ("aug_mv", (RErr, [String "src"; String "dest"]), 23, [Optional "augeas"],
1284 [], (* XXX Augeas code needs tests. *)
1287 Move the node C<src> to C<dest>. C<src> must match exactly
1288 one node. C<dest> is overwritten if it exists.");
1290 ("aug_match", (RStringList "matches", [String "augpath"]), 24, [Optional "augeas"],
1291 [], (* XXX Augeas code needs tests. *)
1292 "return Augeas nodes which match augpath",
1294 Returns a list of paths which match the path expression C<path>.
1295 The returned paths are sufficiently qualified so that they match
1296 exactly one node in the current tree.");
1298 ("aug_save", (RErr, []), 25, [Optional "augeas"],
1299 [], (* XXX Augeas code needs tests. *)
1300 "write all pending Augeas changes to disk",
1302 This writes all pending changes to disk.
1304 The flags which were passed to C<guestfs_aug_init> affect exactly
1305 how files are saved.");
1307 ("aug_load", (RErr, []), 27, [Optional "augeas"],
1308 [], (* XXX Augeas code needs tests. *)
1309 "load files into the tree",
1311 Load files into the tree.
1313 See C<aug_load> in the Augeas documentation for the full gory
1316 ("aug_ls", (RStringList "matches", [String "augpath"]), 28, [Optional "augeas"],
1317 [], (* XXX Augeas code needs tests. *)
1318 "list Augeas nodes under augpath",
1320 This is just a shortcut for listing C<guestfs_aug_match>
1321 C<path/*> and sorting the resulting nodes into alphabetical order.");
1323 ("rm", (RErr, [Pathname "path"]), 29, [],
1324 [InitBasicFS, Always, TestRun
1327 InitBasicFS, Always, TestLastFail
1329 InitBasicFS, Always, TestLastFail
1334 Remove the single file C<path>.");
1336 ("rmdir", (RErr, [Pathname "path"]), 30, [],
1337 [InitBasicFS, Always, TestRun
1340 InitBasicFS, Always, TestLastFail
1341 [["rmdir"; "/new"]];
1342 InitBasicFS, Always, TestLastFail
1344 ["rmdir"; "/new"]]],
1345 "remove a directory",
1347 Remove the single directory C<path>.");
1349 ("rm_rf", (RErr, [Pathname "path"]), 31, [],
1350 [InitBasicFS, Always, TestOutputFalse
1352 ["mkdir"; "/new/foo"];
1353 ["touch"; "/new/foo/bar"];
1355 ["exists"; "/new"]]],
1356 "remove a file or directory recursively",
1358 Remove the file or directory C<path>, recursively removing the
1359 contents if its a directory. This is like the C<rm -rf> shell
1362 ("mkdir", (RErr, [Pathname "path"]), 32, [],
1363 [InitBasicFS, Always, TestOutputTrue
1365 ["is_dir"; "/new"]];
1366 InitBasicFS, Always, TestLastFail
1367 [["mkdir"; "/new/foo/bar"]]],
1368 "create a directory",
1370 Create a directory named C<path>.");
1372 ("mkdir_p", (RErr, [Pathname "path"]), 33, [],
1373 [InitBasicFS, Always, TestOutputTrue
1374 [["mkdir_p"; "/new/foo/bar"];
1375 ["is_dir"; "/new/foo/bar"]];
1376 InitBasicFS, Always, TestOutputTrue
1377 [["mkdir_p"; "/new/foo/bar"];
1378 ["is_dir"; "/new/foo"]];
1379 InitBasicFS, Always, TestOutputTrue
1380 [["mkdir_p"; "/new/foo/bar"];
1381 ["is_dir"; "/new"]];
1382 (* Regression tests for RHBZ#503133: *)
1383 InitBasicFS, Always, TestRun
1385 ["mkdir_p"; "/new"]];
1386 InitBasicFS, Always, TestLastFail
1388 ["mkdir_p"; "/new"]]],
1389 "create a directory and parents",
1391 Create a directory named C<path>, creating any parent directories
1392 as necessary. This is like the C<mkdir -p> shell command.");
1394 ("chmod", (RErr, [Int "mode"; Pathname "path"]), 34, [],
1395 [], (* XXX Need stat command to test *)
1398 Change the mode (permissions) of C<path> to C<mode>. Only
1399 numeric modes are supported.
1401 I<Note>: When using this command from guestfish, C<mode>
1402 by default would be decimal, unless you prefix it with
1403 C<0> to get octal, ie. use C<0700> not C<700>.
1405 The mode actually set is affected by the umask.");
1407 ("chown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 35, [],
1408 [], (* XXX Need stat command to test *)
1409 "change file owner and group",
1411 Change the file owner to C<owner> and group to C<group>.
1413 Only numeric uid and gid are supported. If you want to use
1414 names, you will need to locate and parse the password file
1415 yourself (Augeas support makes this relatively easy).");
1417 ("exists", (RBool "existsflag", [Pathname "path"]), 36, [],
1418 [InitISOFS, Always, TestOutputTrue (
1419 [["exists"; "/empty"]]);
1420 InitISOFS, Always, TestOutputTrue (
1421 [["exists"; "/directory"]])],
1422 "test if file or directory exists",
1424 This returns C<true> if and only if there is a file, directory
1425 (or anything) with the given C<path> name.
1427 See also C<guestfs_is_file>, C<guestfs_is_dir>, C<guestfs_stat>.");
1429 ("is_file", (RBool "fileflag", [Pathname "path"]), 37, [],
1430 [InitISOFS, Always, TestOutputTrue (
1431 [["is_file"; "/known-1"]]);
1432 InitISOFS, Always, TestOutputFalse (
1433 [["is_file"; "/directory"]])],
1434 "test if file exists",
1436 This returns C<true> if and only if there is a file
1437 with the given C<path> name. Note that it returns false for
1438 other objects like directories.
1440 See also C<guestfs_stat>.");
1442 ("is_dir", (RBool "dirflag", [Pathname "path"]), 38, [],
1443 [InitISOFS, Always, TestOutputFalse (
1444 [["is_dir"; "/known-3"]]);
1445 InitISOFS, Always, TestOutputTrue (
1446 [["is_dir"; "/directory"]])],
1447 "test if file exists",
1449 This returns C<true> if and only if there is a directory
1450 with the given C<path> name. Note that it returns false for
1451 other objects like files.
1453 See also C<guestfs_stat>.");
1455 ("pvcreate", (RErr, [Device "device"]), 39, [Optional "lvm2"],
1456 [InitEmpty, Always, TestOutputListOfDevices (
1457 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1458 ["pvcreate"; "/dev/sda1"];
1459 ["pvcreate"; "/dev/sda2"];
1460 ["pvcreate"; "/dev/sda3"];
1461 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1462 "create an LVM physical volume",
1464 This creates an LVM physical volume on the named C<device>,
1465 where C<device> should usually be a partition name such
1468 ("vgcreate", (RErr, [String "volgroup"; DeviceList "physvols"]), 40, [Optional "lvm2"],
1469 [InitEmpty, Always, TestOutputList (
1470 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1471 ["pvcreate"; "/dev/sda1"];
1472 ["pvcreate"; "/dev/sda2"];
1473 ["pvcreate"; "/dev/sda3"];
1474 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1475 ["vgcreate"; "VG2"; "/dev/sda3"];
1476 ["vgs"]], ["VG1"; "VG2"])],
1477 "create an LVM volume group",
1479 This creates an LVM volume group called C<volgroup>
1480 from the non-empty list of physical volumes C<physvols>.");
1482 ("lvcreate", (RErr, [String "logvol"; String "volgroup"; Int "mbytes"]), 41, [Optional "lvm2"],
1483 [InitEmpty, Always, TestOutputList (
1484 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1485 ["pvcreate"; "/dev/sda1"];
1486 ["pvcreate"; "/dev/sda2"];
1487 ["pvcreate"; "/dev/sda3"];
1488 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1489 ["vgcreate"; "VG2"; "/dev/sda3"];
1490 ["lvcreate"; "LV1"; "VG1"; "50"];
1491 ["lvcreate"; "LV2"; "VG1"; "50"];
1492 ["lvcreate"; "LV3"; "VG2"; "50"];
1493 ["lvcreate"; "LV4"; "VG2"; "50"];
1494 ["lvcreate"; "LV5"; "VG2"; "50"];
1496 ["/dev/VG1/LV1"; "/dev/VG1/LV2";
1497 "/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
1498 "create an LVM logical volume",
1500 This creates an LVM logical volume called C<logvol>
1501 on the volume group C<volgroup>, with C<size> megabytes.");
1503 ("mkfs", (RErr, [String "fstype"; Device "device"]), 42, [],
1504 [InitEmpty, Always, TestOutput (
1505 [["part_disk"; "/dev/sda"; "mbr"];
1506 ["mkfs"; "ext2"; "/dev/sda1"];
1507 ["mount_options"; ""; "/dev/sda1"; "/"];
1508 ["write"; "/new"; "new file contents"];
1509 ["cat"; "/new"]], "new file contents")],
1510 "make a filesystem",
1512 This creates a filesystem on C<device> (usually a partition
1513 or LVM logical volume). The filesystem type is C<fstype>, for
1516 ("sfdisk", (RErr, [Device "device";
1517 Int "cyls"; Int "heads"; Int "sectors";
1518 StringList "lines"]), 43, [DangerWillRobinson],
1520 "create partitions on a block device",
1522 This is a direct interface to the L<sfdisk(8)> program for creating
1523 partitions on block devices.
1525 C<device> should be a block device, for example C</dev/sda>.
1527 C<cyls>, C<heads> and C<sectors> are the number of cylinders, heads
1528 and sectors on the device, which are passed directly to sfdisk as
1529 the I<-C>, I<-H> and I<-S> parameters. If you pass C<0> for any
1530 of these, then the corresponding parameter is omitted. Usually for
1531 'large' disks, you can just pass C<0> for these, but for small
1532 (floppy-sized) disks, sfdisk (or rather, the kernel) cannot work
1533 out the right geometry and you will need to tell it.
1535 C<lines> is a list of lines that we feed to C<sfdisk>. For more
1536 information refer to the L<sfdisk(8)> manpage.
1538 To create a single partition occupying the whole disk, you would
1539 pass C<lines> as a single element list, when the single element being
1540 the string C<,> (comma).
1542 See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>,
1543 C<guestfs_part_init>");
1545 ("write_file", (RErr, [Pathname "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning; DeprecatedBy "write"],
1546 (* Regression test for RHBZ#597135. *)
1547 [InitBasicFS, Always, TestLastFail
1548 [["write_file"; "/new"; "abc"; "10000"]]],
1551 This call creates a file called C<path>. The contents of the
1552 file is the string C<content> (which can contain any 8 bit data),
1553 with length C<size>.
1555 As a special case, if C<size> is C<0>
1556 then the length is calculated using C<strlen> (so in this case
1557 the content cannot contain embedded ASCII NULs).
1559 I<NB.> Owing to a bug, writing content containing ASCII NUL
1560 characters does I<not> work, even if the length is specified.");
1562 ("umount", (RErr, [String "pathordevice"]), 45, [FishAlias "unmount"],
1563 [InitEmpty, Always, TestOutputListOfDevices (
1564 [["part_disk"; "/dev/sda"; "mbr"];
1565 ["mkfs"; "ext2"; "/dev/sda1"];
1566 ["mount_options"; ""; "/dev/sda1"; "/"];
1567 ["mounts"]], ["/dev/sda1"]);
1568 InitEmpty, Always, TestOutputList (
1569 [["part_disk"; "/dev/sda"; "mbr"];
1570 ["mkfs"; "ext2"; "/dev/sda1"];
1571 ["mount_options"; ""; "/dev/sda1"; "/"];
1574 "unmount a filesystem",
1576 This unmounts the given filesystem. The filesystem may be
1577 specified either by its mountpoint (path) or the device which
1578 contains the filesystem.");
1580 ("mounts", (RStringList "devices", []), 46, [],
1581 [InitBasicFS, Always, TestOutputListOfDevices (
1582 [["mounts"]], ["/dev/sda1"])],
1583 "show mounted filesystems",
1585 This returns the list of currently mounted filesystems. It returns
1586 the list of devices (eg. C</dev/sda1>, C</dev/VG/LV>).
1588 Some internal mounts are not shown.
1590 See also: C<guestfs_mountpoints>");
1592 ("umount_all", (RErr, []), 47, [FishAlias "unmount-all"],
1593 [InitBasicFS, Always, TestOutputList (
1596 (* check that umount_all can unmount nested mounts correctly: *)
1597 InitEmpty, Always, TestOutputList (
1598 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1599 ["mkfs"; "ext2"; "/dev/sda1"];
1600 ["mkfs"; "ext2"; "/dev/sda2"];
1601 ["mkfs"; "ext2"; "/dev/sda3"];
1602 ["mount_options"; ""; "/dev/sda1"; "/"];
1604 ["mount_options"; ""; "/dev/sda2"; "/mp1"];
1605 ["mkdir"; "/mp1/mp2"];
1606 ["mount_options"; ""; "/dev/sda3"; "/mp1/mp2"];
1607 ["mkdir"; "/mp1/mp2/mp3"];
1610 "unmount all filesystems",
1612 This unmounts all mounted filesystems.
1614 Some internal mounts are not unmounted by this call.");
1616 ("lvm_remove_all", (RErr, []), 48, [DangerWillRobinson; Optional "lvm2"],
1618 "remove all LVM LVs, VGs and PVs",
1620 This command removes all LVM logical volumes, volume groups
1621 and physical volumes.");
1623 ("file", (RString "description", [Dev_or_Path "path"]), 49, [],
1624 [InitISOFS, Always, TestOutput (
1625 [["file"; "/empty"]], "empty");
1626 InitISOFS, Always, TestOutput (
1627 [["file"; "/known-1"]], "ASCII text");
1628 InitISOFS, Always, TestLastFail (
1629 [["file"; "/notexists"]])],
1630 "determine file type",
1632 This call uses the standard L<file(1)> command to determine
1633 the type or contents of the file. This also works on devices,
1634 for example to find out whether a partition contains a filesystem.
1636 This call will also transparently look inside various types
1639 The exact command which runs is C<file -zbsL path>. Note in
1640 particular that the filename is not prepended to the output
1641 (the C<-b> option).");
1643 ("command", (RString "output", [StringList "arguments"]), 50, [ProtocolLimitWarning],
1644 [InitBasicFS, Always, TestOutput (
1645 [["upload"; "test-command"; "/test-command"];
1646 ["chmod"; "0o755"; "/test-command"];
1647 ["command"; "/test-command 1"]], "Result1");
1648 InitBasicFS, Always, TestOutput (
1649 [["upload"; "test-command"; "/test-command"];
1650 ["chmod"; "0o755"; "/test-command"];
1651 ["command"; "/test-command 2"]], "Result2\n");
1652 InitBasicFS, Always, TestOutput (
1653 [["upload"; "test-command"; "/test-command"];
1654 ["chmod"; "0o755"; "/test-command"];
1655 ["command"; "/test-command 3"]], "\nResult3");
1656 InitBasicFS, Always, TestOutput (
1657 [["upload"; "test-command"; "/test-command"];
1658 ["chmod"; "0o755"; "/test-command"];
1659 ["command"; "/test-command 4"]], "\nResult4\n");
1660 InitBasicFS, Always, TestOutput (
1661 [["upload"; "test-command"; "/test-command"];
1662 ["chmod"; "0o755"; "/test-command"];
1663 ["command"; "/test-command 5"]], "\nResult5\n\n");
1664 InitBasicFS, Always, TestOutput (
1665 [["upload"; "test-command"; "/test-command"];
1666 ["chmod"; "0o755"; "/test-command"];
1667 ["command"; "/test-command 6"]], "\n\nResult6\n\n");
1668 InitBasicFS, Always, TestOutput (
1669 [["upload"; "test-command"; "/test-command"];
1670 ["chmod"; "0o755"; "/test-command"];
1671 ["command"; "/test-command 7"]], "");
1672 InitBasicFS, Always, TestOutput (
1673 [["upload"; "test-command"; "/test-command"];
1674 ["chmod"; "0o755"; "/test-command"];
1675 ["command"; "/test-command 8"]], "\n");
1676 InitBasicFS, Always, TestOutput (
1677 [["upload"; "test-command"; "/test-command"];
1678 ["chmod"; "0o755"; "/test-command"];
1679 ["command"; "/test-command 9"]], "\n\n");
1680 InitBasicFS, Always, TestOutput (
1681 [["upload"; "test-command"; "/test-command"];
1682 ["chmod"; "0o755"; "/test-command"];
1683 ["command"; "/test-command 10"]], "Result10-1\nResult10-2\n");
1684 InitBasicFS, Always, TestOutput (
1685 [["upload"; "test-command"; "/test-command"];
1686 ["chmod"; "0o755"; "/test-command"];
1687 ["command"; "/test-command 11"]], "Result11-1\nResult11-2");
1688 InitBasicFS, Always, TestLastFail (
1689 [["upload"; "test-command"; "/test-command"];
1690 ["chmod"; "0o755"; "/test-command"];
1691 ["command"; "/test-command"]])],
1692 "run a command from the guest filesystem",
1694 This call runs a command from the guest filesystem. The
1695 filesystem must be mounted, and must contain a compatible
1696 operating system (ie. something Linux, with the same
1697 or compatible processor architecture).
1699 The single parameter is an argv-style list of arguments.
1700 The first element is the name of the program to run.
1701 Subsequent elements are parameters. The list must be
1702 non-empty (ie. must contain a program name). Note that
1703 the command runs directly, and is I<not> invoked via
1704 the shell (see C<guestfs_sh>).
1706 The return value is anything printed to I<stdout> by
1709 If the command returns a non-zero exit status, then
1710 this function returns an error message. The error message
1711 string is the content of I<stderr> from the command.
1713 The C<$PATH> environment variable will contain at least
1714 C</usr/bin> and C</bin>. If you require a program from
1715 another location, you should provide the full path in the
1718 Shared libraries and data files required by the program
1719 must be available on filesystems which are mounted in the
1720 correct places. It is the caller's responsibility to ensure
1721 all filesystems that are needed are mounted at the right
1724 ("command_lines", (RStringList "lines", [StringList "arguments"]), 51, [ProtocolLimitWarning],
1725 [InitBasicFS, Always, TestOutputList (
1726 [["upload"; "test-command"; "/test-command"];
1727 ["chmod"; "0o755"; "/test-command"];
1728 ["command_lines"; "/test-command 1"]], ["Result1"]);
1729 InitBasicFS, Always, TestOutputList (
1730 [["upload"; "test-command"; "/test-command"];
1731 ["chmod"; "0o755"; "/test-command"];
1732 ["command_lines"; "/test-command 2"]], ["Result2"]);
1733 InitBasicFS, Always, TestOutputList (
1734 [["upload"; "test-command"; "/test-command"];
1735 ["chmod"; "0o755"; "/test-command"];
1736 ["command_lines"; "/test-command 3"]], ["";"Result3"]);
1737 InitBasicFS, Always, TestOutputList (
1738 [["upload"; "test-command"; "/test-command"];
1739 ["chmod"; "0o755"; "/test-command"];
1740 ["command_lines"; "/test-command 4"]], ["";"Result4"]);
1741 InitBasicFS, Always, TestOutputList (
1742 [["upload"; "test-command"; "/test-command"];
1743 ["chmod"; "0o755"; "/test-command"];
1744 ["command_lines"; "/test-command 5"]], ["";"Result5";""]);
1745 InitBasicFS, Always, TestOutputList (
1746 [["upload"; "test-command"; "/test-command"];
1747 ["chmod"; "0o755"; "/test-command"];
1748 ["command_lines"; "/test-command 6"]], ["";"";"Result6";""]);
1749 InitBasicFS, Always, TestOutputList (
1750 [["upload"; "test-command"; "/test-command"];
1751 ["chmod"; "0o755"; "/test-command"];
1752 ["command_lines"; "/test-command 7"]], []);
1753 InitBasicFS, Always, TestOutputList (
1754 [["upload"; "test-command"; "/test-command"];
1755 ["chmod"; "0o755"; "/test-command"];
1756 ["command_lines"; "/test-command 8"]], [""]);
1757 InitBasicFS, Always, TestOutputList (
1758 [["upload"; "test-command"; "/test-command"];
1759 ["chmod"; "0o755"; "/test-command"];
1760 ["command_lines"; "/test-command 9"]], ["";""]);
1761 InitBasicFS, Always, TestOutputList (
1762 [["upload"; "test-command"; "/test-command"];
1763 ["chmod"; "0o755"; "/test-command"];
1764 ["command_lines"; "/test-command 10"]], ["Result10-1";"Result10-2"]);
1765 InitBasicFS, Always, TestOutputList (
1766 [["upload"; "test-command"; "/test-command"];
1767 ["chmod"; "0o755"; "/test-command"];
1768 ["command_lines"; "/test-command 11"]], ["Result11-1";"Result11-2"])],
1769 "run a command, returning lines",
1771 This is the same as C<guestfs_command>, but splits the
1772 result into a list of lines.
1774 See also: C<guestfs_sh_lines>");
1776 ("stat", (RStruct ("statbuf", "stat"), [Pathname "path"]), 52, [],
1777 [InitISOFS, Always, TestOutputStruct (
1778 [["stat"; "/empty"]], [CompareWithInt ("size", 0)])],
1779 "get file information",
1781 Returns file information for the given C<path>.
1783 This is the same as the C<stat(2)> system call.");
1785 ("lstat", (RStruct ("statbuf", "stat"), [Pathname "path"]), 53, [],
1786 [InitISOFS, Always, TestOutputStruct (
1787 [["lstat"; "/empty"]], [CompareWithInt ("size", 0)])],
1788 "get file information for a symbolic link",
1790 Returns file information for the given C<path>.
1792 This is the same as C<guestfs_stat> except that if C<path>
1793 is a symbolic link, then the link is stat-ed, not the file it
1796 This is the same as the C<lstat(2)> system call.");
1798 ("statvfs", (RStruct ("statbuf", "statvfs"), [Pathname "path"]), 54, [],
1799 [InitISOFS, Always, TestOutputStruct (
1800 [["statvfs"; "/"]], [CompareWithInt ("namemax", 255)])],
1801 "get file system statistics",
1803 Returns file system statistics for any mounted file system.
1804 C<path> should be a file or directory in the mounted file system
1805 (typically it is the mount point itself, but it doesn't need to be).
1807 This is the same as the C<statvfs(2)> system call.");
1809 ("tune2fs_l", (RHashtable "superblock", [Device "device"]), 55, [],
1811 "get ext2/ext3/ext4 superblock details",
1813 This returns the contents of the ext2, ext3 or ext4 filesystem
1814 superblock on C<device>.
1816 It is the same as running C<tune2fs -l device>. See L<tune2fs(8)>
1817 manpage for more details. The list of fields returned isn't
1818 clearly defined, and depends on both the version of C<tune2fs>
1819 that libguestfs was built against, and the filesystem itself.");
1821 ("blockdev_setro", (RErr, [Device "device"]), 56, [],
1822 [InitEmpty, Always, TestOutputTrue (
1823 [["blockdev_setro"; "/dev/sda"];
1824 ["blockdev_getro"; "/dev/sda"]])],
1825 "set block device to read-only",
1827 Sets the block device named C<device> to read-only.
1829 This uses the L<blockdev(8)> command.");
1831 ("blockdev_setrw", (RErr, [Device "device"]), 57, [],
1832 [InitEmpty, Always, TestOutputFalse (
1833 [["blockdev_setrw"; "/dev/sda"];
1834 ["blockdev_getro"; "/dev/sda"]])],
1835 "set block device to read-write",
1837 Sets the block device named C<device> to read-write.
1839 This uses the L<blockdev(8)> command.");
1841 ("blockdev_getro", (RBool "ro", [Device "device"]), 58, [],
1842 [InitEmpty, Always, TestOutputTrue (
1843 [["blockdev_setro"; "/dev/sda"];
1844 ["blockdev_getro"; "/dev/sda"]])],
1845 "is block device set to read-only",
1847 Returns a boolean indicating if the block device is read-only
1848 (true if read-only, false if not).
1850 This uses the L<blockdev(8)> command.");
1852 ("blockdev_getss", (RInt "sectorsize", [Device "device"]), 59, [],
1853 [InitEmpty, Always, TestOutputInt (
1854 [["blockdev_getss"; "/dev/sda"]], 512)],
1855 "get sectorsize of block device",
1857 This returns the size of sectors on a block device.
1858 Usually 512, but can be larger for modern devices.
1860 (Note, this is not the size in sectors, use C<guestfs_blockdev_getsz>
1863 This uses the L<blockdev(8)> command.");
1865 ("blockdev_getbsz", (RInt "blocksize", [Device "device"]), 60, [],
1866 [InitEmpty, Always, TestOutputInt (
1867 [["blockdev_getbsz"; "/dev/sda"]], 4096)],
1868 "get blocksize of block device",
1870 This returns the block size of a device.
1872 (Note this is different from both I<size in blocks> and
1873 I<filesystem block size>).
1875 This uses the L<blockdev(8)> command.");
1877 ("blockdev_setbsz", (RErr, [Device "device"; Int "blocksize"]), 61, [],
1879 "set blocksize of block device",
1881 This sets the block size of a device.
1883 (Note this is different from both I<size in blocks> and
1884 I<filesystem block size>).
1886 This uses the L<blockdev(8)> command.");
1888 ("blockdev_getsz", (RInt64 "sizeinsectors", [Device "device"]), 62, [],
1889 [InitEmpty, Always, TestOutputInt (
1890 [["blockdev_getsz"; "/dev/sda"]], 1024000)],
1891 "get total size of device in 512-byte sectors",
1893 This returns the size of the device in units of 512-byte sectors
1894 (even if the sectorsize isn't 512 bytes ... weird).
1896 See also C<guestfs_blockdev_getss> for the real sector size of
1897 the device, and C<guestfs_blockdev_getsize64> for the more
1898 useful I<size in bytes>.
1900 This uses the L<blockdev(8)> command.");
1902 ("blockdev_getsize64", (RInt64 "sizeinbytes", [Device "device"]), 63, [],
1903 [InitEmpty, Always, TestOutputInt (
1904 [["blockdev_getsize64"; "/dev/sda"]], 524288000)],
1905 "get total size of device in bytes",
1907 This returns the size of the device in bytes.
1909 See also C<guestfs_blockdev_getsz>.
1911 This uses the L<blockdev(8)> command.");
1913 ("blockdev_flushbufs", (RErr, [Device "device"]), 64, [],
1914 [InitEmpty, Always, TestRun
1915 [["blockdev_flushbufs"; "/dev/sda"]]],
1916 "flush device buffers",
1918 This tells the kernel to flush internal buffers associated
1921 This uses the L<blockdev(8)> command.");
1923 ("blockdev_rereadpt", (RErr, [Device "device"]), 65, [],
1924 [InitEmpty, Always, TestRun
1925 [["blockdev_rereadpt"; "/dev/sda"]]],
1926 "reread partition table",
1928 Reread the partition table on C<device>.
1930 This uses the L<blockdev(8)> command.");
1932 ("upload", (RErr, [FileIn "filename"; Dev_or_Path "remotefilename"]), 66, [],
1933 [InitBasicFS, Always, TestOutput (
1934 (* Pick a file from cwd which isn't likely to change. *)
1935 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1936 ["checksum"; "md5"; "/COPYING.LIB"]],
1937 Digest.to_hex (Digest.file "COPYING.LIB"))],
1938 "upload a file from the local machine",
1940 Upload local file C<filename> to C<remotefilename> on the
1943 C<filename> can also be a named pipe.
1945 See also C<guestfs_download>.");
1947 ("download", (RErr, [Dev_or_Path "remotefilename"; FileOut "filename"]), 67, [],
1948 [InitBasicFS, Always, TestOutput (
1949 (* Pick a file from cwd which isn't likely to change. *)
1950 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1951 ["download"; "/COPYING.LIB"; "testdownload.tmp"];
1952 ["upload"; "testdownload.tmp"; "/upload"];
1953 ["checksum"; "md5"; "/upload"]],
1954 Digest.to_hex (Digest.file "COPYING.LIB"))],
1955 "download a file to the local machine",
1957 Download file C<remotefilename> and save it as C<filename>
1958 on the local machine.
1960 C<filename> can also be a named pipe.
1962 See also C<guestfs_upload>, C<guestfs_cat>.");
1964 ("checksum", (RString "checksum", [String "csumtype"; Pathname "path"]), 68, [],
1965 [InitISOFS, Always, TestOutput (
1966 [["checksum"; "crc"; "/known-3"]], "2891671662");
1967 InitISOFS, Always, TestLastFail (
1968 [["checksum"; "crc"; "/notexists"]]);
1969 InitISOFS, Always, TestOutput (
1970 [["checksum"; "md5"; "/known-3"]], "46d6ca27ee07cdc6fa99c2e138cc522c");
1971 InitISOFS, Always, TestOutput (
1972 [["checksum"; "sha1"; "/known-3"]], "b7ebccc3ee418311091c3eda0a45b83c0a770f15");
1973 InitISOFS, Always, TestOutput (
1974 [["checksum"; "sha224"; "/known-3"]], "d2cd1774b28f3659c14116be0a6dc2bb5c4b350ce9cd5defac707741");
1975 InitISOFS, Always, TestOutput (
1976 [["checksum"; "sha256"; "/known-3"]], "75bb71b90cd20cb13f86d2bea8dad63ac7194e7517c3b52b8d06ff52d3487d30");
1977 InitISOFS, Always, TestOutput (
1978 [["checksum"; "sha384"; "/known-3"]], "5fa7883430f357b5d7b7271d3a1d2872b51d73cba72731de6863d3dea55f30646af2799bef44d5ea776a5ec7941ac640");
1979 InitISOFS, Always, TestOutput (
1980 [["checksum"; "sha512"; "/known-3"]], "2794062c328c6b216dca90443b7f7134c5f40e56bd0ed7853123275a09982a6f992e6ca682f9d2fba34a4c5e870d8fe077694ff831e3032a004ee077e00603f6");
1981 (* Test for RHBZ#579608, absolute symbolic links. *)
1982 InitISOFS, Always, TestOutput (
1983 [["checksum"; "sha512"; "/abssymlink"]], "5f57d0639bc95081c53afc63a449403883818edc64da48930ad6b1a4fb49be90404686877743fbcd7c99811f3def7df7bc22635c885c6a8cf79c806b43451c1a")],
1984 "compute MD5, SHAx or CRC checksum of file",
1986 This call computes the MD5, SHAx or CRC checksum of the
1989 The type of checksum to compute is given by the C<csumtype>
1990 parameter which must have one of the following values:
1996 Compute the cyclic redundancy check (CRC) specified by POSIX
1997 for the C<cksum> command.
2001 Compute the MD5 hash (using the C<md5sum> program).
2005 Compute the SHA1 hash (using the C<sha1sum> program).
2009 Compute the SHA224 hash (using the C<sha224sum> program).
2013 Compute the SHA256 hash (using the C<sha256sum> program).
2017 Compute the SHA384 hash (using the C<sha384sum> program).
2021 Compute the SHA512 hash (using the C<sha512sum> program).
2025 The checksum is returned as a printable string.
2027 To get the checksum for a device, use C<guestfs_checksum_device>.
2029 To get the checksums for many files, use C<guestfs_checksums_out>.");
2031 ("tar_in", (RErr, [FileIn "tarfile"; Pathname "directory"]), 69, [],
2032 [InitBasicFS, Always, TestOutput (
2033 [["tar_in"; "../images/helloworld.tar"; "/"];
2034 ["cat"; "/hello"]], "hello\n")],
2035 "unpack tarfile to directory",
2037 This command uploads and unpacks local file C<tarfile> (an
2038 I<uncompressed> tar file) into C<directory>.
2040 To upload a compressed tarball, use C<guestfs_tgz_in>
2041 or C<guestfs_txz_in>.");
2043 ("tar_out", (RErr, [String "directory"; FileOut "tarfile"]), 70, [],
2045 "pack directory into tarfile",
2047 This command packs the contents of C<directory> and downloads
2048 it to local file C<tarfile>.
2050 To download a compressed tarball, use C<guestfs_tgz_out>
2051 or C<guestfs_txz_out>.");
2053 ("tgz_in", (RErr, [FileIn "tarball"; Pathname "directory"]), 71, [],
2054 [InitBasicFS, Always, TestOutput (
2055 [["tgz_in"; "../images/helloworld.tar.gz"; "/"];
2056 ["cat"; "/hello"]], "hello\n")],
2057 "unpack compressed tarball to directory",
2059 This command uploads and unpacks local file C<tarball> (a
2060 I<gzip compressed> tar file) into C<directory>.
2062 To upload an uncompressed tarball, use C<guestfs_tar_in>.");
2064 ("tgz_out", (RErr, [Pathname "directory"; FileOut "tarball"]), 72, [],
2066 "pack directory into compressed tarball",
2068 This command packs the contents of C<directory> and downloads
2069 it to local file C<tarball>.
2071 To download an uncompressed tarball, use C<guestfs_tar_out>.");
2073 ("mount_ro", (RErr, [Device "device"; String "mountpoint"]), 73, [],
2074 [InitBasicFS, Always, TestLastFail (
2076 ["mount_ro"; "/dev/sda1"; "/"];
2077 ["touch"; "/new"]]);
2078 InitBasicFS, Always, TestOutput (
2079 [["write"; "/new"; "data"];
2081 ["mount_ro"; "/dev/sda1"; "/"];
2082 ["cat"; "/new"]], "data")],
2083 "mount a guest disk, read-only",
2085 This is the same as the C<guestfs_mount> command, but it
2086 mounts the filesystem with the read-only (I<-o ro>) flag.");
2088 ("mount_options", (RErr, [String "options"; Device "device"; String "mountpoint"]), 74, [],
2090 "mount a guest disk with mount options",
2092 This is the same as the C<guestfs_mount> command, but it
2093 allows you to set the mount options as for the
2094 L<mount(8)> I<-o> flag.
2096 If the C<options> parameter is an empty string, then
2097 no options are passed (all options default to whatever
2098 the filesystem uses).");
2100 ("mount_vfs", (RErr, [String "options"; String "vfstype"; Device "device"; String "mountpoint"]), 75, [],
2102 "mount a guest disk with mount options and vfstype",
2104 This is the same as the C<guestfs_mount> command, but it
2105 allows you to set both the mount options and the vfstype
2106 as for the L<mount(8)> I<-o> and I<-t> flags.");
2108 ("debug", (RString "result", [String "subcmd"; StringList "extraargs"]), 76, [],
2110 "debugging and internals",
2112 The C<guestfs_debug> command exposes some internals of
2113 C<guestfsd> (the guestfs daemon) that runs inside the
2116 There is no comprehensive help for this command. You have
2117 to look at the file C<daemon/debug.c> in the libguestfs source
2118 to find out what you can do.");
2120 ("lvremove", (RErr, [Device "device"]), 77, [Optional "lvm2"],
2121 [InitEmpty, Always, TestOutputList (
2122 [["part_disk"; "/dev/sda"; "mbr"];
2123 ["pvcreate"; "/dev/sda1"];
2124 ["vgcreate"; "VG"; "/dev/sda1"];
2125 ["lvcreate"; "LV1"; "VG"; "50"];
2126 ["lvcreate"; "LV2"; "VG"; "50"];
2127 ["lvremove"; "/dev/VG/LV1"];
2128 ["lvs"]], ["/dev/VG/LV2"]);
2129 InitEmpty, Always, TestOutputList (
2130 [["part_disk"; "/dev/sda"; "mbr"];
2131 ["pvcreate"; "/dev/sda1"];
2132 ["vgcreate"; "VG"; "/dev/sda1"];
2133 ["lvcreate"; "LV1"; "VG"; "50"];
2134 ["lvcreate"; "LV2"; "VG"; "50"];
2135 ["lvremove"; "/dev/VG"];
2137 InitEmpty, Always, TestOutputList (
2138 [["part_disk"; "/dev/sda"; "mbr"];
2139 ["pvcreate"; "/dev/sda1"];
2140 ["vgcreate"; "VG"; "/dev/sda1"];
2141 ["lvcreate"; "LV1"; "VG"; "50"];
2142 ["lvcreate"; "LV2"; "VG"; "50"];
2143 ["lvremove"; "/dev/VG"];
2145 "remove an LVM logical volume",
2147 Remove an LVM logical volume C<device>, where C<device> is
2148 the path to the LV, such as C</dev/VG/LV>.
2150 You can also remove all LVs in a volume group by specifying
2151 the VG name, C</dev/VG>.");
2153 ("vgremove", (RErr, [String "vgname"]), 78, [Optional "lvm2"],
2154 [InitEmpty, Always, TestOutputList (
2155 [["part_disk"; "/dev/sda"; "mbr"];
2156 ["pvcreate"; "/dev/sda1"];
2157 ["vgcreate"; "VG"; "/dev/sda1"];
2158 ["lvcreate"; "LV1"; "VG"; "50"];
2159 ["lvcreate"; "LV2"; "VG"; "50"];
2162 InitEmpty, Always, TestOutputList (
2163 [["part_disk"; "/dev/sda"; "mbr"];
2164 ["pvcreate"; "/dev/sda1"];
2165 ["vgcreate"; "VG"; "/dev/sda1"];
2166 ["lvcreate"; "LV1"; "VG"; "50"];
2167 ["lvcreate"; "LV2"; "VG"; "50"];
2170 "remove an LVM volume group",
2172 Remove an LVM volume group C<vgname>, (for example C<VG>).
2174 This also forcibly removes all logical volumes in the volume
2177 ("pvremove", (RErr, [Device "device"]), 79, [Optional "lvm2"],
2178 [InitEmpty, Always, TestOutputListOfDevices (
2179 [["part_disk"; "/dev/sda"; "mbr"];
2180 ["pvcreate"; "/dev/sda1"];
2181 ["vgcreate"; "VG"; "/dev/sda1"];
2182 ["lvcreate"; "LV1"; "VG"; "50"];
2183 ["lvcreate"; "LV2"; "VG"; "50"];
2185 ["pvremove"; "/dev/sda1"];
2187 InitEmpty, Always, TestOutputListOfDevices (
2188 [["part_disk"; "/dev/sda"; "mbr"];
2189 ["pvcreate"; "/dev/sda1"];
2190 ["vgcreate"; "VG"; "/dev/sda1"];
2191 ["lvcreate"; "LV1"; "VG"; "50"];
2192 ["lvcreate"; "LV2"; "VG"; "50"];
2194 ["pvremove"; "/dev/sda1"];
2196 InitEmpty, Always, TestOutputListOfDevices (
2197 [["part_disk"; "/dev/sda"; "mbr"];
2198 ["pvcreate"; "/dev/sda1"];
2199 ["vgcreate"; "VG"; "/dev/sda1"];
2200 ["lvcreate"; "LV1"; "VG"; "50"];
2201 ["lvcreate"; "LV2"; "VG"; "50"];
2203 ["pvremove"; "/dev/sda1"];
2205 "remove an LVM physical volume",
2207 This wipes a physical volume C<device> so that LVM will no longer
2210 The implementation uses the C<pvremove> command which refuses to
2211 wipe physical volumes that contain any volume groups, so you have
2212 to remove those first.");
2214 ("set_e2label", (RErr, [Device "device"; String "label"]), 80, [],
2215 [InitBasicFS, Always, TestOutput (
2216 [["set_e2label"; "/dev/sda1"; "testlabel"];
2217 ["get_e2label"; "/dev/sda1"]], "testlabel")],
2218 "set the ext2/3/4 filesystem label",
2220 This sets the ext2/3/4 filesystem label of the filesystem on
2221 C<device> to C<label>. Filesystem labels are limited to
2224 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
2225 to return the existing label on a filesystem.");
2227 ("get_e2label", (RString "label", [Device "device"]), 81, [DeprecatedBy "vfs_label"],
2229 "get the ext2/3/4 filesystem label",
2231 This returns the ext2/3/4 filesystem label of the filesystem on
2234 ("set_e2uuid", (RErr, [Device "device"; String "uuid"]), 82, [],
2235 (let uuid = uuidgen () in
2236 [InitBasicFS, Always, TestOutput (
2237 [["set_e2uuid"; "/dev/sda1"; uuid];
2238 ["get_e2uuid"; "/dev/sda1"]], uuid);
2239 InitBasicFS, Always, TestOutput (
2240 [["set_e2uuid"; "/dev/sda1"; "clear"];
2241 ["get_e2uuid"; "/dev/sda1"]], "");
2242 (* We can't predict what UUIDs will be, so just check the commands run. *)
2243 InitBasicFS, Always, TestRun (
2244 [["set_e2uuid"; "/dev/sda1"; "random"]]);
2245 InitBasicFS, Always, TestRun (
2246 [["set_e2uuid"; "/dev/sda1"; "time"]])]),
2247 "set the ext2/3/4 filesystem UUID",
2249 This sets the ext2/3/4 filesystem UUID of the filesystem on
2250 C<device> to C<uuid>. The format of the UUID and alternatives
2251 such as C<clear>, C<random> and C<time> are described in the
2252 L<tune2fs(8)> manpage.
2254 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
2255 to return the existing UUID of a filesystem.");
2257 ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [DeprecatedBy "vfs_uuid"],
2258 (* Regression test for RHBZ#597112. *)
2259 (let uuid = uuidgen () in
2260 [InitBasicFS, Always, TestOutput (
2261 [["mke2journal"; "1024"; "/dev/sdb"];
2262 ["set_e2uuid"; "/dev/sdb"; uuid];
2263 ["get_e2uuid"; "/dev/sdb"]], uuid)]),
2264 "get the ext2/3/4 filesystem UUID",
2266 This returns the ext2/3/4 filesystem UUID of the filesystem on
2269 ("fsck", (RInt "status", [String "fstype"; Device "device"]), 84, [FishOutput FishOutputHexadecimal],
2270 [InitBasicFS, Always, TestOutputInt (
2271 [["umount"; "/dev/sda1"];
2272 ["fsck"; "ext2"; "/dev/sda1"]], 0);
2273 InitBasicFS, Always, TestOutputInt (
2274 [["umount"; "/dev/sda1"];
2275 ["zero"; "/dev/sda1"];
2276 ["fsck"; "ext2"; "/dev/sda1"]], 8)],
2277 "run the filesystem checker",
2279 This runs the filesystem checker (fsck) on C<device> which
2280 should have filesystem type C<fstype>.
2282 The returned integer is the status. See L<fsck(8)> for the
2283 list of status codes from C<fsck>.
2291 Multiple status codes can be summed together.
2295 A non-zero return code can mean \"success\", for example if
2296 errors have been corrected on the filesystem.
2300 Checking or repairing NTFS volumes is not supported
2305 This command is entirely equivalent to running C<fsck -a -t fstype device>.");
2307 ("zero", (RErr, [Device "device"]), 85, [],
2308 [InitBasicFS, Always, TestOutput (
2309 [["umount"; "/dev/sda1"];
2310 ["zero"; "/dev/sda1"];
2311 ["file"; "/dev/sda1"]], "data")],
2312 "write zeroes to the device",
2314 This command writes zeroes over the first few blocks of C<device>.
2316 How many blocks are zeroed isn't specified (but it's I<not> enough
2317 to securely wipe the device). It should be sufficient to remove
2318 any partition tables, filesystem superblocks and so on.
2320 See also: C<guestfs_zero_device>, C<guestfs_scrub_device>.");
2322 ("grub_install", (RErr, [Pathname "root"; Device "device"]), 86, [],
2324 * https://bugzilla.redhat.com/show_bug.cgi?id=484986
2325 * https://bugzilla.redhat.com/show_bug.cgi?id=479760
2327 [InitBasicFS, Always, TestOutputTrue (
2328 [["mkdir_p"; "/boot/grub"];
2329 ["write"; "/boot/grub/device.map"; "(hd0) /dev/vda"];
2330 ["grub_install"; "/"; "/dev/vda"];
2331 ["is_dir"; "/boot"]])],
2334 This command installs GRUB (the Grand Unified Bootloader) on
2335 C<device>, with the root directory being C<root>.
2337 Note: If grub-install reports the error
2338 \"No suitable drive was found in the generated device map.\"
2339 it may be that you need to create a C</boot/grub/device.map>
2340 file first that contains the mapping between grub device names
2341 and Linux device names. It is usually sufficient to create
2346 replacing C</dev/vda> with the name of the installation device.");
2348 ("cp", (RErr, [Pathname "src"; Pathname "dest"]), 87, [],
2349 [InitBasicFS, Always, TestOutput (
2350 [["write"; "/old"; "file content"];
2351 ["cp"; "/old"; "/new"];
2352 ["cat"; "/new"]], "file content");
2353 InitBasicFS, Always, TestOutputTrue (
2354 [["write"; "/old"; "file content"];
2355 ["cp"; "/old"; "/new"];
2356 ["is_file"; "/old"]]);
2357 InitBasicFS, Always, TestOutput (
2358 [["write"; "/old"; "file content"];
2360 ["cp"; "/old"; "/dir/new"];
2361 ["cat"; "/dir/new"]], "file content")],
2364 This copies a file from C<src> to C<dest> where C<dest> is
2365 either a destination filename or destination directory.");
2367 ("cp_a", (RErr, [Pathname "src"; Pathname "dest"]), 88, [],
2368 [InitBasicFS, Always, TestOutput (
2369 [["mkdir"; "/olddir"];
2370 ["mkdir"; "/newdir"];
2371 ["write"; "/olddir/file"; "file content"];
2372 ["cp_a"; "/olddir"; "/newdir"];
2373 ["cat"; "/newdir/olddir/file"]], "file content")],
2374 "copy a file or directory recursively",
2376 This copies a file or directory from C<src> to C<dest>
2377 recursively using the C<cp -a> command.");
2379 ("mv", (RErr, [Pathname "src"; Pathname "dest"]), 89, [],
2380 [InitBasicFS, Always, TestOutput (
2381 [["write"; "/old"; "file content"];
2382 ["mv"; "/old"; "/new"];
2383 ["cat"; "/new"]], "file content");
2384 InitBasicFS, Always, TestOutputFalse (
2385 [["write"; "/old"; "file content"];
2386 ["mv"; "/old"; "/new"];
2387 ["is_file"; "/old"]])],
2390 This moves a file from C<src> to C<dest> where C<dest> is
2391 either a destination filename or destination directory.");
2393 ("drop_caches", (RErr, [Int "whattodrop"]), 90, [],
2394 [InitEmpty, Always, TestRun (
2395 [["drop_caches"; "3"]])],
2396 "drop kernel page cache, dentries and inodes",
2398 This instructs the guest kernel to drop its page cache,
2399 and/or dentries and inode caches. The parameter C<whattodrop>
2400 tells the kernel what precisely to drop, see
2401 L<http://linux-mm.org/Drop_Caches>
2403 Setting C<whattodrop> to 3 should drop everything.
2405 This automatically calls L<sync(2)> before the operation,
2406 so that the maximum guest memory is freed.");
2408 ("dmesg", (RString "kmsgs", []), 91, [],
2409 [InitEmpty, Always, TestRun (
2411 "return kernel messages",
2413 This returns the kernel messages (C<dmesg> output) from
2414 the guest kernel. This is sometimes useful for extended
2415 debugging of problems.
2417 Another way to get the same information is to enable
2418 verbose messages with C<guestfs_set_verbose> or by setting
2419 the environment variable C<LIBGUESTFS_DEBUG=1> before
2420 running the program.");
2422 ("ping_daemon", (RErr, []), 92, [],
2423 [InitEmpty, Always, TestRun (
2424 [["ping_daemon"]])],
2425 "ping the guest daemon",
2427 This is a test probe into the guestfs daemon running inside
2428 the qemu subprocess. Calling this function checks that the
2429 daemon responds to the ping message, without affecting the daemon
2430 or attached block device(s) in any other way.");
2432 ("equal", (RBool "equality", [Pathname "file1"; Pathname "file2"]), 93, [],
2433 [InitBasicFS, Always, TestOutputTrue (
2434 [["write"; "/file1"; "contents of a file"];
2435 ["cp"; "/file1"; "/file2"];
2436 ["equal"; "/file1"; "/file2"]]);
2437 InitBasicFS, Always, TestOutputFalse (
2438 [["write"; "/file1"; "contents of a file"];
2439 ["write"; "/file2"; "contents of another file"];
2440 ["equal"; "/file1"; "/file2"]]);
2441 InitBasicFS, Always, TestLastFail (
2442 [["equal"; "/file1"; "/file2"]])],
2443 "test if two files have equal contents",
2445 This compares the two files C<file1> and C<file2> and returns
2446 true if their content is exactly equal, or false otherwise.
2448 The external L<cmp(1)> program is used for the comparison.");
2450 ("strings", (RStringList "stringsout", [Pathname "path"]), 94, [ProtocolLimitWarning],
2451 [InitISOFS, Always, TestOutputList (
2452 [["strings"; "/known-5"]], ["abcdefghi"; "jklmnopqr"]);
2453 InitISOFS, Always, TestOutputList (
2454 [["strings"; "/empty"]], []);
2455 (* Test for RHBZ#579608, absolute symbolic links. *)
2456 InitISOFS, Always, TestRun (
2457 [["strings"; "/abssymlink"]])],
2458 "print the printable strings in a file",
2460 This runs the L<strings(1)> command on a file and returns
2461 the list of printable strings found.");
2463 ("strings_e", (RStringList "stringsout", [String "encoding"; Pathname "path"]), 95, [ProtocolLimitWarning],
2464 [InitISOFS, Always, TestOutputList (
2465 [["strings_e"; "b"; "/known-5"]], []);
2466 InitBasicFS, Always, TestOutputList (
2467 [["write"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"];
2468 ["strings_e"; "b"; "/new"]], ["hello"; "world"])],
2469 "print the printable strings in a file",
2471 This is like the C<guestfs_strings> command, but allows you to
2472 specify the encoding of strings that are looked for in
2473 the source file C<path>.
2475 Allowed encodings are:
2481 Single 7-bit-byte characters like ASCII and the ASCII-compatible
2482 parts of ISO-8859-X (this is what C<guestfs_strings> uses).
2486 Single 8-bit-byte characters.
2490 16-bit big endian strings such as those encoded in
2491 UTF-16BE or UCS-2BE.
2493 =item l (lower case letter L)
2495 16-bit little endian such as UTF-16LE and UCS-2LE.
2496 This is useful for examining binaries in Windows guests.
2500 32-bit big endian such as UCS-4BE.
2504 32-bit little endian such as UCS-4LE.
2508 The returned strings are transcoded to UTF-8.");
2510 ("hexdump", (RString "dump", [Pathname "path"]), 96, [ProtocolLimitWarning],
2511 [InitISOFS, Always, TestOutput (
2512 [["hexdump"; "/known-4"]], "00000000 61 62 63 0a 64 65 66 0a 67 68 69 |abc.def.ghi|\n0000000b\n");
2513 (* Test for RHBZ#501888c2 regression which caused large hexdump
2514 * commands to segfault.
2516 InitISOFS, Always, TestRun (
2517 [["hexdump"; "/100krandom"]]);
2518 (* Test for RHBZ#579608, absolute symbolic links. *)
2519 InitISOFS, Always, TestRun (
2520 [["hexdump"; "/abssymlink"]])],
2521 "dump a file in hexadecimal",
2523 This runs C<hexdump -C> on the given C<path>. The result is
2524 the human-readable, canonical hex dump of the file.");
2526 ("zerofree", (RErr, [Device "device"]), 97, [Optional "zerofree"],
2527 [InitNone, Always, TestOutput (
2528 [["part_disk"; "/dev/sda"; "mbr"];
2529 ["mkfs"; "ext3"; "/dev/sda1"];
2530 ["mount_options"; ""; "/dev/sda1"; "/"];
2531 ["write"; "/new"; "test file"];
2532 ["umount"; "/dev/sda1"];
2533 ["zerofree"; "/dev/sda1"];
2534 ["mount_options"; ""; "/dev/sda1"; "/"];
2535 ["cat"; "/new"]], "test file")],
2536 "zero unused inodes and disk blocks on ext2/3 filesystem",
2538 This runs the I<zerofree> program on C<device>. This program
2539 claims to zero unused inodes and disk blocks on an ext2/3
2540 filesystem, thus making it possible to compress the filesystem
2543 You should B<not> run this program if the filesystem is
2546 It is possible that using this program can damage the filesystem
2547 or data on the filesystem.");
2549 ("pvresize", (RErr, [Device "device"]), 98, [Optional "lvm2"],
2551 "resize an LVM physical volume",
2553 This resizes (expands or shrinks) an existing LVM physical
2554 volume to match the new size of the underlying device.");
2556 ("sfdisk_N", (RErr, [Device "device"; Int "partnum";
2557 Int "cyls"; Int "heads"; Int "sectors";
2558 String "line"]), 99, [DangerWillRobinson],
2560 "modify a single partition on a block device",
2562 This runs L<sfdisk(8)> option to modify just the single
2563 partition C<n> (note: C<n> counts from 1).
2565 For other parameters, see C<guestfs_sfdisk>. You should usually
2566 pass C<0> for the cyls/heads/sectors parameters.
2568 See also: C<guestfs_part_add>");
2570 ("sfdisk_l", (RString "partitions", [Device "device"]), 100, [],
2572 "display the partition table",
2574 This displays the partition table on C<device>, in the
2575 human-readable output of the L<sfdisk(8)> command. It is
2576 not intended to be parsed.
2578 See also: C<guestfs_part_list>");
2580 ("sfdisk_kernel_geometry", (RString "partitions", [Device "device"]), 101, [],
2582 "display the kernel geometry",
2584 This displays the kernel's idea of the geometry of C<device>.
2586 The result is in human-readable format, and not designed to
2589 ("sfdisk_disk_geometry", (RString "partitions", [Device "device"]), 102, [],
2591 "display the disk geometry from the partition table",
2593 This displays the disk geometry of C<device> read from the
2594 partition table. Especially in the case where the underlying
2595 block device has been resized, this can be different from the
2596 kernel's idea of the geometry (see C<guestfs_sfdisk_kernel_geometry>).
2598 The result is in human-readable format, and not designed to
2601 ("vg_activate_all", (RErr, [Bool "activate"]), 103, [Optional "lvm2"],
2603 "activate or deactivate all volume groups",
2605 This command activates or (if C<activate> is false) deactivates
2606 all logical volumes in all volume groups.
2607 If activated, then they are made known to the
2608 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2609 then those devices disappear.
2611 This command is the same as running C<vgchange -a y|n>");
2613 ("vg_activate", (RErr, [Bool "activate"; StringList "volgroups"]), 104, [Optional "lvm2"],
2615 "activate or deactivate some volume groups",
2617 This command activates or (if C<activate> is false) deactivates
2618 all logical volumes in the listed volume groups C<volgroups>.
2619 If activated, then they are made known to the
2620 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2621 then those devices disappear.
2623 This command is the same as running C<vgchange -a y|n volgroups...>
2625 Note that if C<volgroups> is an empty list then B<all> volume groups
2626 are activated or deactivated.");
2628 ("lvresize", (RErr, [Device "device"; Int "mbytes"]), 105, [Optional "lvm2"],
2629 [InitNone, Always, TestOutput (
2630 [["part_disk"; "/dev/sda"; "mbr"];
2631 ["pvcreate"; "/dev/sda1"];
2632 ["vgcreate"; "VG"; "/dev/sda1"];
2633 ["lvcreate"; "LV"; "VG"; "10"];
2634 ["mkfs"; "ext2"; "/dev/VG/LV"];
2635 ["mount_options"; ""; "/dev/VG/LV"; "/"];
2636 ["write"; "/new"; "test content"];
2638 ["lvresize"; "/dev/VG/LV"; "20"];
2639 ["e2fsck_f"; "/dev/VG/LV"];
2640 ["resize2fs"; "/dev/VG/LV"];
2641 ["mount_options"; ""; "/dev/VG/LV"; "/"];
2642 ["cat"; "/new"]], "test content");
2643 InitNone, Always, TestRun (
2644 (* Make an LV smaller to test RHBZ#587484. *)
2645 [["part_disk"; "/dev/sda"; "mbr"];
2646 ["pvcreate"; "/dev/sda1"];
2647 ["vgcreate"; "VG"; "/dev/sda1"];
2648 ["lvcreate"; "LV"; "VG"; "20"];
2649 ["lvresize"; "/dev/VG/LV"; "10"]])],
2650 "resize an LVM logical volume",
2652 This resizes (expands or shrinks) an existing LVM logical
2653 volume to C<mbytes>. When reducing, data in the reduced part
2656 ("resize2fs", (RErr, [Device "device"]), 106, [],
2657 [], (* lvresize tests this *)
2658 "resize an ext2, ext3 or ext4 filesystem",
2660 This resizes an ext2, ext3 or ext4 filesystem to match the size of
2661 the underlying device.
2663 I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
2664 on the C<device> before calling this command. For unknown reasons
2665 C<resize2fs> sometimes gives an error about this and sometimes not.
2666 In any case, it is always safe to call C<guestfs_e2fsck_f> before
2667 calling this function.");
2669 ("find", (RStringList "names", [Pathname "directory"]), 107, [ProtocolLimitWarning],
2670 [InitBasicFS, Always, TestOutputList (
2671 [["find"; "/"]], ["lost+found"]);
2672 InitBasicFS, Always, TestOutputList (
2676 ["find"; "/"]], ["a"; "b"; "b/c"; "lost+found"]);
2677 InitBasicFS, Always, TestOutputList (
2678 [["mkdir_p"; "/a/b/c"];
2679 ["touch"; "/a/b/c/d"];
2680 ["find"; "/a/b/"]], ["c"; "c/d"])],
2681 "find all files and directories",
2683 This command lists out all files and directories, recursively,
2684 starting at C<directory>. It is essentially equivalent to
2685 running the shell command C<find directory -print> but some
2686 post-processing happens on the output, described below.
2688 This returns a list of strings I<without any prefix>. Thus
2689 if the directory structure was:
2695 then the returned list from C<guestfs_find> C</tmp> would be
2703 If C<directory> is not a directory, then this command returns
2706 The returned list is sorted.
2708 See also C<guestfs_find0>.");
2710 ("e2fsck_f", (RErr, [Device "device"]), 108, [],
2711 [], (* lvresize tests this *)
2712 "check an ext2/ext3 filesystem",
2714 This runs C<e2fsck -p -f device>, ie. runs the ext2/ext3
2715 filesystem checker on C<device>, noninteractively (C<-p>),
2716 even if the filesystem appears to be clean (C<-f>).
2718 This command is only needed because of C<guestfs_resize2fs>
2719 (q.v.). Normally you should use C<guestfs_fsck>.");
2721 ("sleep", (RErr, [Int "secs"]), 109, [],
2722 [InitNone, Always, TestRun (
2724 "sleep for some seconds",
2726 Sleep for C<secs> seconds.");
2728 ("ntfs_3g_probe", (RInt "status", [Bool "rw"; Device "device"]), 110, [Optional "ntfs3g"],
2729 [InitNone, Always, TestOutputInt (
2730 [["part_disk"; "/dev/sda"; "mbr"];
2731 ["mkfs"; "ntfs"; "/dev/sda1"];
2732 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 0);
2733 InitNone, Always, TestOutputInt (
2734 [["part_disk"; "/dev/sda"; "mbr"];
2735 ["mkfs"; "ext2"; "/dev/sda1"];
2736 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 12)],
2737 "probe NTFS volume",
2739 This command runs the L<ntfs-3g.probe(8)> command which probes
2740 an NTFS C<device> for mountability. (Not all NTFS volumes can
2741 be mounted read-write, and some cannot be mounted at all).
2743 C<rw> is a boolean flag. Set it to true if you want to test
2744 if the volume can be mounted read-write. Set it to false if
2745 you want to test if the volume can be mounted read-only.
2747 The return value is an integer which C<0> if the operation
2748 would succeed, or some non-zero value documented in the
2749 L<ntfs-3g.probe(8)> manual page.");
2751 ("sh", (RString "output", [String "command"]), 111, [],
2752 [], (* XXX needs tests *)
2753 "run a command via the shell",
2755 This call runs a command from the guest filesystem via the
2758 This is like C<guestfs_command>, but passes the command to:
2760 /bin/sh -c \"command\"
2762 Depending on the guest's shell, this usually results in
2763 wildcards being expanded, shell expressions being interpolated
2766 All the provisos about C<guestfs_command> apply to this call.");
2768 ("sh_lines", (RStringList "lines", [String "command"]), 112, [],
2769 [], (* XXX needs tests *)
2770 "run a command via the shell returning lines",
2772 This is the same as C<guestfs_sh>, but splits the result
2773 into a list of lines.
2775 See also: C<guestfs_command_lines>");
2777 ("glob_expand", (RStringList "paths", [Pathname "pattern"]), 113, [],
2778 (* Use Pathname here, and hence ABS_PATH (pattern,... in generated
2779 * code in stubs.c, since all valid glob patterns must start with "/".
2780 * There is no concept of "cwd" in libguestfs, hence no "."-relative names.
2782 [InitBasicFS, Always, TestOutputList (
2783 [["mkdir_p"; "/a/b/c"];
2784 ["touch"; "/a/b/c/d"];
2785 ["touch"; "/a/b/c/e"];
2786 ["glob_expand"; "/a/b/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2787 InitBasicFS, Always, TestOutputList (
2788 [["mkdir_p"; "/a/b/c"];
2789 ["touch"; "/a/b/c/d"];
2790 ["touch"; "/a/b/c/e"];
2791 ["glob_expand"; "/a/*/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2792 InitBasicFS, Always, TestOutputList (
2793 [["mkdir_p"; "/a/b/c"];
2794 ["touch"; "/a/b/c/d"];
2795 ["touch"; "/a/b/c/e"];
2796 ["glob_expand"; "/a/*/x/*"]], [])],
2797 "expand a wildcard path",
2799 This command searches for all the pathnames matching
2800 C<pattern> according to the wildcard expansion rules
2803 If no paths match, then this returns an empty list
2804 (note: not an error).
2806 It is just a wrapper around the C L<glob(3)> function
2807 with flags C<GLOB_MARK|GLOB_BRACE>.
2808 See that manual page for more details.");
2810 ("scrub_device", (RErr, [Device "device"]), 114, [DangerWillRobinson; Optional "scrub"],
2811 [InitNone, Always, TestRun ( (* use /dev/sdc because it's smaller *)
2812 [["scrub_device"; "/dev/sdc"]])],
2813 "scrub (securely wipe) a device",
2815 This command writes patterns over C<device> to make data retrieval
2818 It is an interface to the L<scrub(1)> program. See that
2819 manual page for more details.");
2821 ("scrub_file", (RErr, [Pathname "file"]), 115, [Optional "scrub"],
2822 [InitBasicFS, Always, TestRun (
2823 [["write"; "/file"; "content"];
2824 ["scrub_file"; "/file"]])],
2825 "scrub (securely wipe) a file",
2827 This command writes patterns over a file to make data retrieval
2830 The file is I<removed> after scrubbing.
2832 It is an interface to the L<scrub(1)> program. See that
2833 manual page for more details.");
2835 ("scrub_freespace", (RErr, [Pathname "dir"]), 116, [Optional "scrub"],
2836 [], (* XXX needs testing *)
2837 "scrub (securely wipe) free space",
2839 This command creates the directory C<dir> and then fills it
2840 with files until the filesystem is full, and scrubs the files
2841 as for C<guestfs_scrub_file>, and deletes them.
2842 The intention is to scrub any free space on the partition
2845 It is an interface to the L<scrub(1)> program. See that
2846 manual page for more details.");
2848 ("mkdtemp", (RString "dir", [Pathname "template"]), 117, [],
2849 [InitBasicFS, Always, TestRun (
2851 ["mkdtemp"; "/tmp/tmpXXXXXX"]])],
2852 "create a temporary directory",
2854 This command creates a temporary directory. The
2855 C<template> parameter should be a full pathname for the
2856 temporary directory name with the final six characters being
2859 For example: \"/tmp/myprogXXXXXX\" or \"/Temp/myprogXXXXXX\",
2860 the second one being suitable for Windows filesystems.
2862 The name of the temporary directory that was created
2865 The temporary directory is created with mode 0700
2866 and is owned by root.
2868 The caller is responsible for deleting the temporary
2869 directory and its contents after use.
2871 See also: L<mkdtemp(3)>");
2873 ("wc_l", (RInt "lines", [Pathname "path"]), 118, [],
2874 [InitISOFS, Always, TestOutputInt (
2875 [["wc_l"; "/10klines"]], 10000);
2876 (* Test for RHBZ#579608, absolute symbolic links. *)
2877 InitISOFS, Always, TestOutputInt (
2878 [["wc_l"; "/abssymlink"]], 10000)],
2879 "count lines in a file",
2881 This command counts the lines in a file, using the
2882 C<wc -l> external command.");
2884 ("wc_w", (RInt "words", [Pathname "path"]), 119, [],
2885 [InitISOFS, Always, TestOutputInt (
2886 [["wc_w"; "/10klines"]], 10000)],
2887 "count words in a file",
2889 This command counts the words in a file, using the
2890 C<wc -w> external command.");
2892 ("wc_c", (RInt "chars", [Pathname "path"]), 120, [],
2893 [InitISOFS, Always, TestOutputInt (
2894 [["wc_c"; "/100kallspaces"]], 102400)],
2895 "count characters in a file",
2897 This command counts the characters in a file, using the
2898 C<wc -c> external command.");
2900 ("head", (RStringList "lines", [Pathname "path"]), 121, [ProtocolLimitWarning],
2901 [InitISOFS, Always, TestOutputList (
2902 [["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"]);
2903 (* Test for RHBZ#579608, absolute symbolic links. *)
2904 InitISOFS, Always, TestOutputList (
2905 [["head"; "/abssymlink"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
2906 "return first 10 lines of a file",
2908 This command returns up to the first 10 lines of a file as
2909 a list of strings.");
2911 ("head_n", (RStringList "lines", [Int "nrlines"; Pathname "path"]), 122, [ProtocolLimitWarning],
2912 [InitISOFS, Always, TestOutputList (
2913 [["head_n"; "3"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2914 InitISOFS, Always, TestOutputList (
2915 [["head_n"; "-9997"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2916 InitISOFS, Always, TestOutputList (
2917 [["head_n"; "0"; "/10klines"]], [])],
2918 "return first N lines of a file",
2920 If the parameter C<nrlines> is a positive number, this returns the first
2921 C<nrlines> lines of the file C<path>.
2923 If the parameter C<nrlines> is a negative number, this returns lines
2924 from the file C<path>, excluding the last C<nrlines> lines.
2926 If the parameter C<nrlines> is zero, this returns an empty list.");
2928 ("tail", (RStringList "lines", [Pathname "path"]), 123, [ProtocolLimitWarning],
2929 [InitISOFS, Always, TestOutputList (
2930 [["tail"; "/10klines"]], ["9990abcdefghijklmnopqrstuvwxyz";"9991abcdefghijklmnopqrstuvwxyz";"9992abcdefghijklmnopqrstuvwxyz";"9993abcdefghijklmnopqrstuvwxyz";"9994abcdefghijklmnopqrstuvwxyz";"9995abcdefghijklmnopqrstuvwxyz";"9996abcdefghijklmnopqrstuvwxyz";"9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"])],
2931 "return last 10 lines of a file",
2933 This command returns up to the last 10 lines of a file as
2934 a list of strings.");
2936 ("tail_n", (RStringList "lines", [Int "nrlines"; Pathname "path"]), 124, [ProtocolLimitWarning],
2937 [InitISOFS, Always, TestOutputList (
2938 [["tail_n"; "3"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2939 InitISOFS, Always, TestOutputList (
2940 [["tail_n"; "-9998"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2941 InitISOFS, Always, TestOutputList (
2942 [["tail_n"; "0"; "/10klines"]], [])],
2943 "return last N lines of a file",
2945 If the parameter C<nrlines> is a positive number, this returns the last
2946 C<nrlines> lines of the file C<path>.
2948 If the parameter C<nrlines> is a negative number, this returns lines
2949 from the file C<path>, starting with the C<-nrlines>th line.
2951 If the parameter C<nrlines> is zero, this returns an empty list.");
2953 ("df", (RString "output", []), 125, [],
2954 [], (* XXX Tricky to test because it depends on the exact format
2955 * of the 'df' command and other imponderables.
2957 "report file system disk space usage",
2959 This command runs the C<df> command to report disk space used.
2961 This command is mostly useful for interactive sessions. It
2962 is I<not> intended that you try to parse the output string.
2963 Use C<statvfs> from programs.");
2965 ("df_h", (RString "output", []), 126, [],
2966 [], (* XXX Tricky to test because it depends on the exact format
2967 * of the 'df' command and other imponderables.
2969 "report file system disk space usage (human readable)",
2971 This command runs the C<df -h> command to report disk space used
2972 in human-readable format.
2974 This command is mostly useful for interactive sessions. It
2975 is I<not> intended that you try to parse the output string.
2976 Use C<statvfs> from programs.");
2978 ("du", (RInt64 "sizekb", [Pathname "path"]), 127, [],
2979 [InitISOFS, Always, TestOutputInt (
2980 [["du"; "/directory"]], 2 (* ISO fs blocksize is 2K *))],
2981 "estimate file space usage",
2983 This command runs the C<du -s> command to estimate file space
2986 C<path> can be a file or a directory. If C<path> is a directory
2987 then the estimate includes the contents of the directory and all
2988 subdirectories (recursively).
2990 The result is the estimated size in I<kilobytes>
2991 (ie. units of 1024 bytes).");
2993 ("initrd_list", (RStringList "filenames", [Pathname "path"]), 128, [],
2994 [InitISOFS, Always, TestOutputList (
2995 [["initrd_list"; "/initrd"]], ["empty";"known-1";"known-2";"known-3";"known-4"; "known-5"])],
2996 "list files in an initrd",
2998 This command lists out files contained in an initrd.
3000 The files are listed without any initial C</> character. The
3001 files are listed in the order they appear (not necessarily
3002 alphabetical). Directory names are listed as separate items.
3004 Old Linux kernels (2.4 and earlier) used a compressed ext2
3005 filesystem as initrd. We I<only> support the newer initramfs
3006 format (compressed cpio files).");
3008 ("mount_loop", (RErr, [Pathname "file"; Pathname "mountpoint"]), 129, [],
3010 "mount a file using the loop device",
3012 This command lets you mount C<file> (a filesystem image
3013 in a file) on a mount point. It is entirely equivalent to
3014 the command C<mount -o loop file mountpoint>.");
3016 ("mkswap", (RErr, [Device "device"]), 130, [],
3017 [InitEmpty, Always, TestRun (
3018 [["part_disk"; "/dev/sda"; "mbr"];
3019 ["mkswap"; "/dev/sda1"]])],
3020 "create a swap partition",
3022 Create a swap partition on C<device>.");
3024 ("mkswap_L", (RErr, [String "label"; Device "device"]), 131, [],
3025 [InitEmpty, Always, TestRun (
3026 [["part_disk"; "/dev/sda"; "mbr"];
3027 ["mkswap_L"; "hello"; "/dev/sda1"]])],
3028 "create a swap partition with a label",
3030 Create a swap partition on C<device> with label C<label>.
3032 Note that you cannot attach a swap label to a block device
3033 (eg. C</dev/sda>), just to a partition. This appears to be
3034 a limitation of the kernel or swap tools.");
3036 ("mkswap_U", (RErr, [String "uuid"; Device "device"]), 132, [Optional "linuxfsuuid"],
3037 (let uuid = uuidgen () in
3038 [InitEmpty, Always, TestRun (
3039 [["part_disk"; "/dev/sda"; "mbr"];
3040 ["mkswap_U"; uuid; "/dev/sda1"]])]),
3041 "create a swap partition with an explicit UUID",
3043 Create a swap partition on C<device> with UUID C<uuid>.");
3045 ("mknod", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 133, [Optional "mknod"],
3046 [InitBasicFS, Always, TestOutputStruct (
3047 [["mknod"; "0o10777"; "0"; "0"; "/node"];
3048 (* NB: default umask 022 means 0777 -> 0755 in these tests *)
3049 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)]);
3050 InitBasicFS, Always, TestOutputStruct (
3051 [["mknod"; "0o60777"; "66"; "99"; "/node"];
3052 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
3053 "make block, character or FIFO devices",
3055 This call creates block or character special devices, or
3056 named pipes (FIFOs).
3058 The C<mode> parameter should be the mode, using the standard
3059 constants. C<devmajor> and C<devminor> are the
3060 device major and minor numbers, only used when creating block
3061 and character special devices.
3063 Note that, just like L<mknod(2)>, the mode must be bitwise
3064 OR'd with S_IFBLK, S_IFCHR, S_IFIFO or S_IFSOCK (otherwise this call
3065 just creates a regular file). These constants are
3066 available in the standard Linux header files, or you can use
3067 C<guestfs_mknod_b>, C<guestfs_mknod_c> or C<guestfs_mkfifo>
3068 which are wrappers around this command which bitwise OR
3069 in the appropriate constant for you.
3071 The mode actually set is affected by the umask.");
3073 ("mkfifo", (RErr, [Int "mode"; Pathname "path"]), 134, [Optional "mknod"],
3074 [InitBasicFS, Always, TestOutputStruct (
3075 [["mkfifo"; "0o777"; "/node"];
3076 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)])],
3077 "make FIFO (named pipe)",
3079 This call creates a FIFO (named pipe) called C<path> with
3080 mode C<mode>. It is just a convenient wrapper around
3083 The mode actually set is affected by the umask.");
3085 ("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 135, [Optional "mknod"],
3086 [InitBasicFS, Always, TestOutputStruct (
3087 [["mknod_b"; "0o777"; "99"; "66"; "/node"];
3088 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
3089 "make block device node",
3091 This call creates a block device node called C<path> with
3092 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
3093 It is just a convenient wrapper around C<guestfs_mknod>.
3095 The mode actually set is affected by the umask.");
3097 ("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 136, [Optional "mknod"],
3098 [InitBasicFS, Always, TestOutputStruct (
3099 [["mknod_c"; "0o777"; "99"; "66"; "/node"];
3100 ["stat"; "/node"]], [CompareWithInt ("mode", 0o20755)])],
3101 "make char device node",
3103 This call creates a char device node called C<path> with
3104 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
3105 It is just a convenient wrapper around C<guestfs_mknod>.
3107 The mode actually set is affected by the umask.");
3109 ("umask", (RInt "oldmask", [Int "mask"]), 137, [FishOutput FishOutputOctal],
3110 [InitEmpty, Always, TestOutputInt (
3111 [["umask"; "0o22"]], 0o22)],
3112 "set file mode creation mask (umask)",
3114 This function sets the mask used for creating new files and
3115 device nodes to C<mask & 0777>.
3117 Typical umask values would be C<022> which creates new files
3118 with permissions like \"-rw-r--r--\" or \"-rwxr-xr-x\", and
3119 C<002> which creates new files with permissions like
3120 \"-rw-rw-r--\" or \"-rwxrwxr-x\".
3122 The default umask is C<022>. This is important because it
3123 means that directories and device nodes will be created with
3124 C<0644> or C<0755> mode even if you specify C<0777>.
3126 See also C<guestfs_get_umask>,
3127 L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
3129 This call returns the previous umask.");
3131 ("readdir", (RStructList ("entries", "dirent"), [Pathname "dir"]), 138, [],
3133 "read directories entries",
3135 This returns the list of directory entries in directory C<dir>.
3137 All entries in the directory are returned, including C<.> and
3138 C<..>. The entries are I<not> sorted, but returned in the same
3139 order as the underlying filesystem.
3141 Also this call returns basic file type information about each
3142 file. The C<ftyp> field will contain one of the following characters:
3180 The L<readdir(3)> call returned a C<d_type> field with an
3185 This function is primarily intended for use by programs. To
3186 get a simple list of names, use C<guestfs_ls>. To get a printable
3187 directory for human consumption, use C<guestfs_ll>.");
3189 ("sfdiskM", (RErr, [Device "device"; StringList "lines"]), 139, [DangerWillRobinson],
3191 "create partitions on a block device",
3193 This is a simplified interface to the C<guestfs_sfdisk>
3194 command, where partition sizes are specified in megabytes
3195 only (rounded to the nearest cylinder) and you don't need
3196 to specify the cyls, heads and sectors parameters which
3197 were rarely if ever used anyway.
3199 See also: C<guestfs_sfdisk>, the L<sfdisk(8)> manpage
3200 and C<guestfs_part_disk>");
3202 ("zfile", (RString "description", [String "meth"; Pathname "path"]), 140, [DeprecatedBy "file"],
3204 "determine file type inside a compressed file",
3206 This command runs C<file> after first decompressing C<path>
3209 C<method> must be one of C<gzip>, C<compress> or C<bzip2>.
3211 Since 1.0.63, use C<guestfs_file> instead which can now
3212 process compressed files.");
3214 ("getxattrs", (RStructList ("xattrs", "xattr"), [Pathname "path"]), 141, [Optional "linuxxattrs"],
3216 "list extended attributes of a file or directory",
3218 This call lists the extended attributes of the file or directory
3221 At the system call level, this is a combination of the
3222 L<listxattr(2)> and L<getxattr(2)> calls.
3224 See also: C<guestfs_lgetxattrs>, L<attr(5)>.");
3226 ("lgetxattrs", (RStructList ("xattrs", "xattr"), [Pathname "path"]), 142, [Optional "linuxxattrs"],
3228 "list extended attributes of a file or directory",
3230 This is the same as C<guestfs_getxattrs>, but if C<path>
3231 is a symbolic link, then it returns the extended attributes
3232 of the link itself.");
3234 ("setxattr", (RErr, [String "xattr";
3235 String "val"; Int "vallen"; (* will be BufferIn *)
3236 Pathname "path"]), 143, [Optional "linuxxattrs"],
3238 "set extended attribute of a file or directory",
3240 This call sets the extended attribute named C<xattr>
3241 of the file C<path> to the value C<val> (of length C<vallen>).
3242 The value is arbitrary 8 bit data.
3244 See also: C<guestfs_lsetxattr>, L<attr(5)>.");
3246 ("lsetxattr", (RErr, [String "xattr";
3247 String "val"; Int "vallen"; (* will be BufferIn *)
3248 Pathname "path"]), 144, [Optional "linuxxattrs"],
3250 "set extended attribute of a file or directory",
3252 This is the same as C<guestfs_setxattr>, but if C<path>
3253 is a symbolic link, then it sets an extended attribute
3254 of the link itself.");
3256 ("removexattr", (RErr, [String "xattr"; Pathname "path"]), 145, [Optional "linuxxattrs"],
3258 "remove extended attribute of a file or directory",
3260 This call removes the extended attribute named C<xattr>
3261 of the file C<path>.
3263 See also: C<guestfs_lremovexattr>, L<attr(5)>.");
3265 ("lremovexattr", (RErr, [String "xattr"; Pathname "path"]), 146, [Optional "linuxxattrs"],
3267 "remove extended attribute of a file or directory",
3269 This is the same as C<guestfs_removexattr>, but if C<path>
3270 is a symbolic link, then it removes an extended attribute
3271 of the link itself.");
3273 ("mountpoints", (RHashtable "mps", []), 147, [],
3277 This call is similar to C<guestfs_mounts>. That call returns
3278 a list of devices. This one returns a hash table (map) of
3279 device name to directory where the device is mounted.");
3281 ("mkmountpoint", (RErr, [String "exemptpath"]), 148, [],
3282 (* This is a special case: while you would expect a parameter
3283 * of type "Pathname", that doesn't work, because it implies
3284 * NEED_ROOT in the generated calling code in stubs.c, and
3285 * this function cannot use NEED_ROOT.
3288 "create a mountpoint",
3290 C<guestfs_mkmountpoint> and C<guestfs_rmmountpoint> are
3291 specialized calls that can be used to create extra mountpoints
3292 before mounting the first filesystem.
3294 These calls are I<only> necessary in some very limited circumstances,
3295 mainly the case where you want to mount a mix of unrelated and/or
3296 read-only filesystems together.
3298 For example, live CDs often contain a \"Russian doll\" nest of
3299 filesystems, an ISO outer layer, with a squashfs image inside, with
3300 an ext2/3 image inside that. You can unpack this as follows
3303 add-ro Fedora-11-i686-Live.iso
3306 mkmountpoint /squash
3309 mount-loop /cd/LiveOS/squashfs.img /squash
3310 mount-loop /squash/LiveOS/ext3fs.img /ext3
3312 The inner filesystem is now unpacked under the /ext3 mountpoint.");
3314 ("rmmountpoint", (RErr, [String "exemptpath"]), 149, [],
3316 "remove a mountpoint",
3318 This calls removes a mountpoint that was previously created
3319 with C<guestfs_mkmountpoint>. See C<guestfs_mkmountpoint>
3320 for full details.");
3322 ("read_file", (RBufferOut "content", [Pathname "path"]), 150, [ProtocolLimitWarning],
3323 [InitISOFS, Always, TestOutputBuffer (
3324 [["read_file"; "/known-4"]], "abc\ndef\nghi");
3325 (* Test various near large, large and too large files (RHBZ#589039). *)
3326 InitBasicFS, Always, TestLastFail (
3328 ["truncate_size"; "/a"; "4194303"]; (* GUESTFS_MESSAGE_MAX - 1 *)
3329 ["read_file"; "/a"]]);
3330 InitBasicFS, Always, TestLastFail (
3332 ["truncate_size"; "/a"; "4194304"]; (* GUESTFS_MESSAGE_MAX *)
3333 ["read_file"; "/a"]]);
3334 InitBasicFS, Always, TestLastFail (
3336 ["truncate_size"; "/a"; "41943040"]; (* GUESTFS_MESSAGE_MAX * 10 *)
3337 ["read_file"; "/a"]])],
3340 This calls returns the contents of the file C<path> as a
3343 Unlike C<guestfs_cat>, this function can correctly
3344 handle files that contain embedded ASCII NUL characters.
3345 However unlike C<guestfs_download>, this function is limited
3346 in the total size of file that can be handled.");
3348 ("grep", (RStringList "lines", [String "regex"; Pathname "path"]), 151, [ProtocolLimitWarning],
3349 [InitISOFS, Always, TestOutputList (
3350 [["grep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"]);
3351 InitISOFS, Always, TestOutputList (
3352 [["grep"; "nomatch"; "/test-grep.txt"]], []);
3353 (* Test for RHBZ#579608, absolute symbolic links. *)
3354 InitISOFS, Always, TestOutputList (
3355 [["grep"; "nomatch"; "/abssymlink"]], [])],
3356 "return lines matching a pattern",
3358 This calls the external C<grep> program and returns the
3361 ("egrep", (RStringList "lines", [String "regex"; Pathname "path"]), 152, [ProtocolLimitWarning],
3362 [InitISOFS, Always, TestOutputList (
3363 [["egrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3364 "return lines matching a pattern",
3366 This calls the external C<egrep> program and returns the
3369 ("fgrep", (RStringList "lines", [String "pattern"; Pathname "path"]), 153, [ProtocolLimitWarning],
3370 [InitISOFS, Always, TestOutputList (
3371 [["fgrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3372 "return lines matching a pattern",
3374 This calls the external C<fgrep> program and returns the
3377 ("grepi", (RStringList "lines", [String "regex"; Pathname "path"]), 154, [ProtocolLimitWarning],
3378 [InitISOFS, Always, TestOutputList (
3379 [["grepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3380 "return lines matching a pattern",
3382 This calls the external C<grep -i> program and returns the
3385 ("egrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 155, [ProtocolLimitWarning],
3386 [InitISOFS, Always, TestOutputList (
3387 [["egrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3388 "return lines matching a pattern",
3390 This calls the external C<egrep -i> program and returns the
3393 ("fgrepi", (RStringList "lines", [String "pattern"; Pathname "path"]), 156, [ProtocolLimitWarning],
3394 [InitISOFS, Always, TestOutputList (
3395 [["fgrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3396 "return lines matching a pattern",
3398 This calls the external C<fgrep -i> program and returns the
3401 ("zgrep", (RStringList "lines", [String "regex"; Pathname "path"]), 157, [ProtocolLimitWarning],
3402 [InitISOFS, Always, TestOutputList (
3403 [["zgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3404 "return lines matching a pattern",
3406 This calls the external C<zgrep> program and returns the
3409 ("zegrep", (RStringList "lines", [String "regex"; Pathname "path"]), 158, [ProtocolLimitWarning],
3410 [InitISOFS, Always, TestOutputList (
3411 [["zegrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3412 "return lines matching a pattern",
3414 This calls the external C<zegrep> program and returns the
3417 ("zfgrep", (RStringList "lines", [String "pattern"; Pathname "path"]), 159, [ProtocolLimitWarning],
3418 [InitISOFS, Always, TestOutputList (
3419 [["zfgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3420 "return lines matching a pattern",
3422 This calls the external C<zfgrep> program and returns the
3425 ("zgrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 160, [ProtocolLimitWarning],
3426 [InitISOFS, Always, TestOutputList (
3427 [["zgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3428 "return lines matching a pattern",
3430 This calls the external C<zgrep -i> program and returns the
3433 ("zegrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 161, [ProtocolLimitWarning],
3434 [InitISOFS, Always, TestOutputList (
3435 [["zegrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3436 "return lines matching a pattern",
3438 This calls the external C<zegrep -i> program and returns the
3441 ("zfgrepi", (RStringList "lines", [String "pattern"; Pathname "path"]), 162, [ProtocolLimitWarning],
3442 [InitISOFS, Always, TestOutputList (
3443 [["zfgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3444 "return lines matching a pattern",
3446 This calls the external C<zfgrep -i> program and returns the
3449 ("realpath", (RString "rpath", [Pathname "path"]), 163, [Optional "realpath"],
3450 [InitISOFS, Always, TestOutput (
3451 [["realpath"; "/../directory"]], "/directory")],
3452 "canonicalized absolute pathname",
3454 Return the canonicalized absolute pathname of C<path>. The
3455 returned path has no C<.>, C<..> or symbolic link path elements.");
3457 ("ln", (RErr, [String "target"; Pathname "linkname"]), 164, [],
3458 [InitBasicFS, Always, TestOutputStruct (
3461 ["stat"; "/b"]], [CompareWithInt ("nlink", 2)])],
3462 "create a hard link",
3464 This command creates a hard link using the C<ln> command.");
3466 ("ln_f", (RErr, [String "target"; Pathname "linkname"]), 165, [],
3467 [InitBasicFS, Always, TestOutputStruct (
3470 ["ln_f"; "/a"; "/b"];
3471 ["stat"; "/b"]], [CompareWithInt ("nlink", 2)])],
3472 "create a hard link",
3474 This command creates a hard link using the C<ln -f> command.
3475 The C<-f> option removes the link (C<linkname>) if it exists already.");
3477 ("ln_s", (RErr, [String "target"; Pathname "linkname"]), 166, [],
3478 [InitBasicFS, Always, TestOutputStruct (
3480 ["ln_s"; "a"; "/b"];
3481 ["lstat"; "/b"]], [CompareWithInt ("mode", 0o120777)])],
3482 "create a symbolic link",
3484 This command creates a symbolic link using the C<ln -s> command.");
3486 ("ln_sf", (RErr, [String "target"; Pathname "linkname"]), 167, [],
3487 [InitBasicFS, Always, TestOutput (
3488 [["mkdir_p"; "/a/b"];
3489 ["touch"; "/a/b/c"];
3490 ["ln_sf"; "../d"; "/a/b/c"];
3491 ["readlink"; "/a/b/c"]], "../d")],
3492 "create a symbolic link",
3494 This command creates a symbolic link using the C<ln -sf> command,
3495 The C<-f> option removes the link (C<linkname>) if it exists already.");
3497 ("readlink", (RString "link", [Pathname "path"]), 168, [],
3498 [] (* XXX tested above *),
3499 "read the target of a symbolic link",
3501 This command reads the target of a symbolic link.");
3503 ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [DeprecatedBy "fallocate64"],
3504 [InitBasicFS, Always, TestOutputStruct (
3505 [["fallocate"; "/a"; "1000000"];
3506 ["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
3507 "preallocate a file in the guest filesystem",
3509 This command preallocates a file (containing zero bytes) named
3510 C<path> of size C<len> bytes. If the file exists already, it
3513 Do not confuse this with the guestfish-specific
3514 C<alloc> command which allocates a file in the host and
3515 attaches it as a device.");
3517 ("swapon_device", (RErr, [Device "device"]), 170, [],
3518 [InitPartition, Always, TestRun (
3519 [["mkswap"; "/dev/sda1"];
3520 ["swapon_device"; "/dev/sda1"];
3521 ["swapoff_device"; "/dev/sda1"]])],
3522 "enable swap on device",
3524 This command enables the libguestfs appliance to use the
3525 swap device or partition named C<device>. The increased
3526 memory is made available for all commands, for example
3527 those run using C<guestfs_command> or C<guestfs_sh>.
3529 Note that you should not swap to existing guest swap
3530 partitions unless you know what you are doing. They may
3531 contain hibernation information, or other information that
3532 the guest doesn't want you to trash. You also risk leaking
3533 information about the host to the guest this way. Instead,
3534 attach a new host device to the guest and swap on that.");
3536 ("swapoff_device", (RErr, [Device "device"]), 171, [],
3537 [], (* XXX tested by swapon_device *)
3538 "disable swap on device",
3540 This command disables the libguestfs appliance swap
3541 device or partition named C<device>.
3542 See C<guestfs_swapon_device>.");
3544 ("swapon_file", (RErr, [Pathname "file"]), 172, [],
3545 [InitBasicFS, Always, TestRun (
3546 [["fallocate"; "/swap"; "8388608"];
3547 ["mkswap_file"; "/swap"];
3548 ["swapon_file"; "/swap"];
3549 ["swapoff_file"; "/swap"]])],
3550 "enable swap on file",
3552 This command enables swap to a file.
3553 See C<guestfs_swapon_device> for other notes.");
3555 ("swapoff_file", (RErr, [Pathname "file"]), 173, [],
3556 [], (* XXX tested by swapon_file *)
3557 "disable swap on file",
3559 This command disables the libguestfs appliance swap on file.");
3561 ("swapon_label", (RErr, [String "label"]), 174, [],
3562 [InitEmpty, Always, TestRun (
3563 [["part_disk"; "/dev/sdb"; "mbr"];
3564 ["mkswap_L"; "swapit"; "/dev/sdb1"];
3565 ["swapon_label"; "swapit"];
3566 ["swapoff_label"; "swapit"];
3567 ["zero"; "/dev/sdb"];
3568 ["blockdev_rereadpt"; "/dev/sdb"]])],
3569 "enable swap on labeled swap partition",
3571 This command enables swap to a labeled swap partition.
3572 See C<guestfs_swapon_device> for other notes.");
3574 ("swapoff_label", (RErr, [String "label"]), 175, [],
3575 [], (* XXX tested by swapon_label *)
3576 "disable swap on labeled swap partition",
3578 This command disables the libguestfs appliance swap on
3579 labeled swap partition.");
3581 ("swapon_uuid", (RErr, [String "uuid"]), 176, [Optional "linuxfsuuid"],
3582 (let uuid = uuidgen () in
3583 [InitEmpty, Always, TestRun (
3584 [["mkswap_U"; uuid; "/dev/sdb"];
3585 ["swapon_uuid"; uuid];
3586 ["swapoff_uuid"; uuid]])]),
3587 "enable swap on swap partition by UUID",
3589 This command enables swap to a swap partition with the given UUID.
3590 See C<guestfs_swapon_device> for other notes.");
3592 ("swapoff_uuid", (RErr, [String "uuid"]), 177, [Optional "linuxfsuuid"],
3593 [], (* XXX tested by swapon_uuid *)
3594 "disable swap on swap partition by UUID",
3596 This command disables the libguestfs appliance swap partition
3597 with the given UUID.");
3599 ("mkswap_file", (RErr, [Pathname "path"]), 178, [],
3600 [InitBasicFS, Always, TestRun (
3601 [["fallocate"; "/swap"; "8388608"];
3602 ["mkswap_file"; "/swap"]])],
3603 "create a swap file",
3607 This command just writes a swap file signature to an existing
3608 file. To create the file itself, use something like C<guestfs_fallocate>.");
3610 ("inotify_init", (RErr, [Int "maxevents"]), 179, [Optional "inotify"],
3611 [InitISOFS, Always, TestRun (
3612 [["inotify_init"; "0"]])],
3613 "create an inotify handle",
3615 This command creates a new inotify handle.
3616 The inotify subsystem can be used to notify events which happen to
3617 objects in the guest filesystem.
3619 C<maxevents> is the maximum number of events which will be
3620 queued up between calls to C<guestfs_inotify_read> or
3621 C<guestfs_inotify_files>.
3622 If this is passed as C<0>, then the kernel (or previously set)
3623 default is used. For Linux 2.6.29 the default was 16384 events.
3624 Beyond this limit, the kernel throws away events, but records
3625 the fact that it threw them away by setting a flag
3626 C<IN_Q_OVERFLOW> in the returned structure list (see
3627 C<guestfs_inotify_read>).
3629 Before any events are generated, you have to add some
3630 watches to the internal watch list. See:
3631 C<guestfs_inotify_add_watch>,
3632 C<guestfs_inotify_rm_watch> and
3633 C<guestfs_inotify_watch_all>.
3635 Queued up events should be read periodically by calling
3636 C<guestfs_inotify_read>
3637 (or C<guestfs_inotify_files> which is just a helpful
3638 wrapper around C<guestfs_inotify_read>). If you don't
3639 read the events out often enough then you risk the internal
3642 The handle should be closed after use by calling
3643 C<guestfs_inotify_close>. This also removes any
3644 watches automatically.
3646 See also L<inotify(7)> for an overview of the inotify interface
3647 as exposed by the Linux kernel, which is roughly what we expose
3648 via libguestfs. Note that there is one global inotify handle
3649 per libguestfs instance.");
3651 ("inotify_add_watch", (RInt64 "wd", [Pathname "path"; Int "mask"]), 180, [Optional "inotify"],
3652 [InitBasicFS, Always, TestOutputList (
3653 [["inotify_init"; "0"];
3654 ["inotify_add_watch"; "/"; "1073741823"];
3657 ["inotify_files"]], ["a"; "b"])],
3658 "add an inotify watch",
3660 Watch C<path> for the events listed in C<mask>.
3662 Note that if C<path> is a directory then events within that
3663 directory are watched, but this does I<not> happen recursively
3664 (in subdirectories).
3666 Note for non-C or non-Linux callers: the inotify events are
3667 defined by the Linux kernel ABI and are listed in
3668 C</usr/include/sys/inotify.h>.");
3670 ("inotify_rm_watch", (RErr, [Int(*XXX64*) "wd"]), 181, [Optional "inotify"],
3672 "remove an inotify watch",
3674 Remove a previously defined inotify watch.
3675 See C<guestfs_inotify_add_watch>.");
3677 ("inotify_read", (RStructList ("events", "inotify_event"), []), 182, [Optional "inotify"],
3679 "return list of inotify events",
3681 Return the complete queue of events that have happened
3682 since the previous read call.
3684 If no events have happened, this returns an empty list.
3686 I<Note>: In order to make sure that all events have been
3687 read, you must call this function repeatedly until it
3688 returns an empty list. The reason is that the call will
3689 read events up to the maximum appliance-to-host message
3690 size and leave remaining events in the queue.");
3692 ("inotify_files", (RStringList "paths", []), 183, [Optional "inotify"],
3694 "return list of watched files that had events",
3696 This function is a helpful wrapper around C<guestfs_inotify_read>
3697 which just returns a list of pathnames of objects that were
3698 touched. The returned pathnames are sorted and deduplicated.");
3700 ("inotify_close", (RErr, []), 184, [Optional "inotify"],
3702 "close the inotify handle",
3704 This closes the inotify handle which was previously
3705 opened by inotify_init. It removes all watches, throws
3706 away any pending events, and deallocates all resources.");
3708 ("setcon", (RErr, [String "context"]), 185, [Optional "selinux"],
3710 "set SELinux security context",
3712 This sets the SELinux security context of the daemon
3713 to the string C<context>.
3715 See the documentation about SELINUX in L<guestfs(3)>.");
3717 ("getcon", (RString "context", []), 186, [Optional "selinux"],
3719 "get SELinux security context",
3721 This gets the SELinux security context of the daemon.
3723 See the documentation about SELINUX in L<guestfs(3)>,
3724 and C<guestfs_setcon>");
3726 ("mkfs_b", (RErr, [String "fstype"; Int "blocksize"; Device "device"]), 187, [],
3727 [InitEmpty, Always, TestOutput (
3728 [["part_disk"; "/dev/sda"; "mbr"];
3729 ["mkfs_b"; "ext2"; "4096"; "/dev/sda1"];
3730 ["mount_options"; ""; "/dev/sda1"; "/"];
3731 ["write"; "/new"; "new file contents"];
3732 ["cat"; "/new"]], "new file contents")],
3733 "make a filesystem with block size",
3735 This call is similar to C<guestfs_mkfs>, but it allows you to
3736 control the block size of the resulting filesystem. Supported
3737 block sizes depend on the filesystem type, but typically they
3738 are C<1024>, C<2048> or C<4096> only.");
3740 ("mke2journal", (RErr, [Int "blocksize"; Device "device"]), 188, [],
3741 [InitEmpty, Always, TestOutput (
3742 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3743 ["mke2journal"; "4096"; "/dev/sda1"];
3744 ["mke2fs_J"; "ext2"; "4096"; "/dev/sda2"; "/dev/sda1"];
3745 ["mount_options"; ""; "/dev/sda2"; "/"];
3746 ["write"; "/new"; "new file contents"];
3747 ["cat"; "/new"]], "new file contents")],
3748 "make ext2/3/4 external journal",
3750 This creates an ext2 external journal on C<device>. It is equivalent
3753 mke2fs -O journal_dev -b blocksize device");
3755 ("mke2journal_L", (RErr, [Int "blocksize"; String "label"; Device "device"]), 189, [],
3756 [InitEmpty, Always, TestOutput (
3757 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3758 ["mke2journal_L"; "4096"; "JOURNAL"; "/dev/sda1"];
3759 ["mke2fs_JL"; "ext2"; "4096"; "/dev/sda2"; "JOURNAL"];
3760 ["mount_options"; ""; "/dev/sda2"; "/"];
3761 ["write"; "/new"; "new file contents"];
3762 ["cat"; "/new"]], "new file contents")],
3763 "make ext2/3/4 external journal with label",
3765 This creates an ext2 external journal on C<device> with label C<label>.");
3767 ("mke2journal_U", (RErr, [Int "blocksize"; String "uuid"; Device "device"]), 190, [Optional "linuxfsuuid"],
3768 (let uuid = uuidgen () in
3769 [InitEmpty, Always, TestOutput (
3770 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3771 ["mke2journal_U"; "4096"; uuid; "/dev/sda1"];
3772 ["mke2fs_JU"; "ext2"; "4096"; "/dev/sda2"; uuid];
3773 ["mount_options"; ""; "/dev/sda2"; "/"];
3774 ["write"; "/new"; "new file contents"];
3775 ["cat"; "/new"]], "new file contents")]),
3776 "make ext2/3/4 external journal with UUID",
3778 This creates an ext2 external journal on C<device> with UUID C<uuid>.");
3780 ("mke2fs_J", (RErr, [String "fstype"; Int "blocksize"; Device "device"; Device "journal"]), 191, [],
3782 "make ext2/3/4 filesystem with external journal",
3784 This creates an ext2/3/4 filesystem on C<device> with
3785 an external journal on C<journal>. It is equivalent
3788 mke2fs -t fstype -b blocksize -J device=<journal> <device>
3790 See also C<guestfs_mke2journal>.");
3792 ("mke2fs_JL", (RErr, [String "fstype"; Int "blocksize"; Device "device"; String "label"]), 192, [],
3794 "make ext2/3/4 filesystem with external journal",
3796 This creates an ext2/3/4 filesystem on C<device> with
3797 an external journal on the journal labeled C<label>.
3799 See also C<guestfs_mke2journal_L>.");
3801 ("mke2fs_JU", (RErr, [String "fstype"; Int "blocksize"; Device "device"; String "uuid"]), 193, [Optional "linuxfsuuid"],
3803 "make ext2/3/4 filesystem with external journal",
3805 This creates an ext2/3/4 filesystem on C<device> with
3806 an external journal on the journal with UUID C<uuid>.
3808 See also C<guestfs_mke2journal_U>.");
3810 ("modprobe", (RErr, [String "modulename"]), 194, [Optional "linuxmodules"],
3811 [InitNone, Always, TestRun [["modprobe"; "fat"]]],
3812 "load a kernel module",
3814 This loads a kernel module in the appliance.
3816 The kernel module must have been whitelisted when libguestfs
3817 was built (see C<appliance/kmod.whitelist.in> in the source).");
3819 ("echo_daemon", (RString "output", [StringList "words"]), 195, [],
3820 [InitNone, Always, TestOutput (
3821 [["echo_daemon"; "This is a test"]], "This is a test"
3823 "echo arguments back to the client",
3825 This command concatenates the list of C<words> passed with single spaces
3826 between them and returns the resulting string.
3828 You can use this command to test the connection through to the daemon.
3830 See also C<guestfs_ping_daemon>.");
3832 ("find0", (RErr, [Pathname "directory"; FileOut "files"]), 196, [],
3833 [], (* There is a regression test for this. *)
3834 "find all files and directories, returning NUL-separated list",
3836 This command lists out all files and directories, recursively,
3837 starting at C<directory>, placing the resulting list in the
3838 external file called C<files>.
3840 This command works the same way as C<guestfs_find> with the
3841 following exceptions:
3847 The resulting list is written to an external file.
3851 Items (filenames) in the result are separated
3852 by C<\\0> characters. See L<find(1)> option I<-print0>.
3856 This command is not limited in the number of names that it
3861 The result list is not sorted.
3865 ("case_sensitive_path", (RString "rpath", [Pathname "path"]), 197, [],
3866 [InitISOFS, Always, TestOutput (
3867 [["case_sensitive_path"; "/DIRECTORY"]], "/directory");
3868 InitISOFS, Always, TestOutput (
3869 [["case_sensitive_path"; "/DIRECTORY/"]], "/directory");
3870 InitISOFS, Always, TestOutput (
3871 [["case_sensitive_path"; "/Known-1"]], "/known-1");
3872 InitISOFS, Always, TestLastFail (
3873 [["case_sensitive_path"; "/Known-1/"]]);
3874 InitBasicFS, Always, TestOutput (
3876 ["mkdir"; "/a/bbb"];
3877 ["touch"; "/a/bbb/c"];
3878 ["case_sensitive_path"; "/A/bbB/C"]], "/a/bbb/c");
3879 InitBasicFS, Always, TestOutput (
3881 ["mkdir"; "/a/bbb"];
3882 ["touch"; "/a/bbb/c"];
3883 ["case_sensitive_path"; "/A////bbB/C"]], "/a/bbb/c");
3884 InitBasicFS, Always, TestLastFail (
3886 ["mkdir"; "/a/bbb"];
3887 ["touch"; "/a/bbb/c"];
3888 ["case_sensitive_path"; "/A/bbb/../bbb/C"]])],
3889 "return true path on case-insensitive filesystem",
3891 This can be used to resolve case insensitive paths on
3892 a filesystem which is case sensitive. The use case is
3893 to resolve paths which you have read from Windows configuration
3894 files or the Windows Registry, to the true path.
3896 The command handles a peculiarity of the Linux ntfs-3g
3897 filesystem driver (and probably others), which is that although
3898 the underlying filesystem is case-insensitive, the driver
3899 exports the filesystem to Linux as case-sensitive.
3901 One consequence of this is that special directories such
3902 as C<c:\\windows> may appear as C</WINDOWS> or C</windows>
3903 (or other things) depending on the precise details of how
3904 they were created. In Windows itself this would not be
3907 Bug or feature? You decide:
3908 L<http://www.tuxera.com/community/ntfs-3g-faq/#posixfilenames1>
3910 This function resolves the true case of each element in the
3911 path and returns the case-sensitive path.
3913 Thus C<guestfs_case_sensitive_path> (\"/Windows/System32\")
3914 might return C<\"/WINDOWS/system32\"> (the exact return value
3915 would depend on details of how the directories were originally
3916 created under Windows).
3919 This function does not handle drive names, backslashes etc.
3921 See also C<guestfs_realpath>.");
3923 ("vfs_type", (RString "fstype", [Device "device"]), 198, [],
3924 [InitBasicFS, Always, TestOutput (
3925 [["vfs_type"; "/dev/sda1"]], "ext2")],
3926 "get the Linux VFS type corresponding to a mounted device",
3928 This command gets the filesystem type corresponding to
3929 the filesystem on C<device>.
3931 For most filesystems, the result is the name of the Linux
3932 VFS module which would be used to mount this filesystem
3933 if you mounted it without specifying the filesystem type.
3934 For example a string such as C<ext3> or C<ntfs>.");
3936 ("truncate", (RErr, [Pathname "path"]), 199, [],
3937 [InitBasicFS, Always, TestOutputStruct (
3938 [["write"; "/test"; "some stuff so size is not zero"];
3939 ["truncate"; "/test"];
3940 ["stat"; "/test"]], [CompareWithInt ("size", 0)])],
3941 "truncate a file to zero size",
3943 This command truncates C<path> to a zero-length file. The
3944 file must exist already.");
3946 ("truncate_size", (RErr, [Pathname "path"; Int64 "size"]), 200, [],
3947 [InitBasicFS, Always, TestOutputStruct (
3948 [["touch"; "/test"];
3949 ["truncate_size"; "/test"; "1000"];
3950 ["stat"; "/test"]], [CompareWithInt ("size", 1000)])],
3951 "truncate a file to a particular size",
3953 This command truncates C<path> to size C<size> bytes. The file
3956 If the current file size is less than C<size> then
3957 the file is extended to the required size with zero bytes.
3958 This creates a sparse file (ie. disk blocks are not allocated
3959 for the file until you write to it). To create a non-sparse
3960 file of zeroes, use C<guestfs_fallocate64> instead.");
3962 ("utimens", (RErr, [Pathname "path"; Int64 "atsecs"; Int64 "atnsecs"; Int64 "mtsecs"; Int64 "mtnsecs"]), 201, [],
3963 [InitBasicFS, Always, TestOutputStruct (
3964 [["touch"; "/test"];
3965 ["utimens"; "/test"; "12345"; "67890"; "9876"; "5432"];
3966 ["stat"; "/test"]], [CompareWithInt ("mtime", 9876)])],
3967 "set timestamp of a file with nanosecond precision",
3969 This command sets the timestamps of a file with nanosecond
3972 C<atsecs, atnsecs> are the last access time (atime) in secs and
3973 nanoseconds from the epoch.
3975 C<mtsecs, mtnsecs> are the last modification time (mtime) in
3976 secs and nanoseconds from the epoch.
3978 If the C<*nsecs> field contains the special value C<-1> then
3979 the corresponding timestamp is set to the current time. (The
3980 C<*secs> field is ignored in this case).
3982 If the C<*nsecs> field contains the special value C<-2> then
3983 the corresponding timestamp is left unchanged. (The
3984 C<*secs> field is ignored in this case).");
3986 ("mkdir_mode", (RErr, [Pathname "path"; Int "mode"]), 202, [],
3987 [InitBasicFS, Always, TestOutputStruct (
3988 [["mkdir_mode"; "/test"; "0o111"];
3989 ["stat"; "/test"]], [CompareWithInt ("mode", 0o40111)])],
3990 "create a directory with a particular mode",
3992 This command creates a directory, setting the initial permissions
3993 of the directory to C<mode>.
3995 For common Linux filesystems, the actual mode which is set will
3996 be C<mode & ~umask & 01777>. Non-native-Linux filesystems may
3997 interpret the mode in other ways.
3999 See also C<guestfs_mkdir>, C<guestfs_umask>");
4001 ("lchown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 203, [],
4003 "change file owner and group",
4005 Change the file owner to C<owner> and group to C<group>.
4006 This is like C<guestfs_chown> but if C<path> is a symlink then
4007 the link itself is changed, not the target.
4009 Only numeric uid and gid are supported. If you want to use
4010 names, you will need to locate and parse the password file
4011 yourself (Augeas support makes this relatively easy).");
4013 ("lstatlist", (RStructList ("statbufs", "stat"), [Pathname "path"; StringList "names"]), 204, [],
4015 "lstat on multiple files",
4017 This call allows you to perform the C<guestfs_lstat> operation
4018 on multiple files, where all files are in the directory C<path>.
4019 C<names> is the list of files from this directory.
4021 On return you get a list of stat structs, with a one-to-one
4022 correspondence to the C<names> list. If any name did not exist
4023 or could not be lstat'd, then the C<ino> field of that structure
4026 This call is intended for programs that want to efficiently
4027 list a directory contents without making many round-trips.
4028 See also C<guestfs_lxattrlist> for a similarly efficient call
4029 for getting extended attributes. Very long directory listings
4030 might cause the protocol message size to be exceeded, causing
4031 this call to fail. The caller must split up such requests
4032 into smaller groups of names.");
4034 ("lxattrlist", (RStructList ("xattrs", "xattr"), [Pathname "path"; StringList "names"]), 205, [Optional "linuxxattrs"],
4036 "lgetxattr on multiple files",
4038 This call allows you to get the extended attributes
4039 of multiple files, where all files are in the directory C<path>.
4040 C<names> is the list of files from this directory.
4042 On return you get a flat list of xattr structs which must be
4043 interpreted sequentially. The first xattr struct always has a zero-length
4044 C<attrname>. C<attrval> in this struct is zero-length
4045 to indicate there was an error doing C<lgetxattr> for this
4046 file, I<or> is a C string which is a decimal number
4047 (the number of following attributes for this file, which could
4048 be C<\"0\">). Then after the first xattr struct are the
4049 zero or more attributes for the first named file.
4050 This repeats for the second and subsequent files.
4052 This call is intended for programs that want to efficiently
4053 list a directory contents without making many round-trips.
4054 See also C<guestfs_lstatlist> for a similarly efficient call
4055 for getting standard stats. Very long directory listings
4056 might cause the protocol message size to be exceeded, causing
4057 this call to fail. The caller must split up such requests
4058 into smaller groups of names.");
4060 ("readlinklist", (RStringList "links", [Pathname "path"; StringList "names"]), 206, [],
4062 "readlink on multiple files",
4064 This call allows you to do a C<readlink> operation
4065 on multiple files, where all files are in the directory C<path>.
4066 C<names> is the list of files from this directory.
4068 On return you get a list of strings, with a one-to-one
4069 correspondence to the C<names> list. Each string is the
4070 value of the symbolic link.
4072 If the C<readlink(2)> operation fails on any name, then
4073 the corresponding result string is the empty string C<\"\">.
4074 However the whole operation is completed even if there
4075 were C<readlink(2)> errors, and so you can call this
4076 function with names where you don't know if they are
4077 symbolic links already (albeit slightly less efficient).
4079 This call is intended for programs that want to efficiently
4080 list a directory contents without making many round-trips.
4081 Very long directory listings might cause the protocol
4082 message size to be exceeded, causing
4083 this call to fail. The caller must split up such requests
4084 into smaller groups of names.");
4086 ("pread", (RBufferOut "content", [Pathname "path"; Int "count"; Int64 "offset"]), 207, [ProtocolLimitWarning],
4087 [InitISOFS, Always, TestOutputBuffer (
4088 [["pread"; "/known-4"; "1"; "3"]], "\n");
4089 InitISOFS, Always, TestOutputBuffer (
4090 [["pread"; "/empty"; "0"; "100"]], "")],
4091 "read part of a file",
4093 This command lets you read part of a file. It reads C<count>
4094 bytes of the file, starting at C<offset>, from file C<path>.
4096 This may read fewer bytes than requested. For further details
4097 see the L<pread(2)> system call.
4099 See also C<guestfs_pwrite>.");
4101 ("part_init", (RErr, [Device "device"; String "parttype"]), 208, [],
4102 [InitEmpty, Always, TestRun (
4103 [["part_init"; "/dev/sda"; "gpt"]])],
4104 "create an empty partition table",
4106 This creates an empty partition table on C<device> of one of the
4107 partition types listed below. Usually C<parttype> should be
4108 either C<msdos> or C<gpt> (for large disks).
4110 Initially there are no partitions. Following this, you should
4111 call C<guestfs_part_add> for each partition required.
4113 Possible values for C<parttype> are:
4117 =item B<efi> | B<gpt>
4119 Intel EFI / GPT partition table.
4121 This is recommended for >= 2 TB partitions that will be accessed
4122 from Linux and Intel-based Mac OS X. It also has limited backwards
4123 compatibility with the C<mbr> format.
4125 =item B<mbr> | B<msdos>
4127 The standard PC \"Master Boot Record\" (MBR) format used
4128 by MS-DOS and Windows. This partition type will B<only> work
4129 for device sizes up to 2 TB. For large disks we recommend
4134 Other partition table types that may work but are not
4143 =item B<amiga> | B<rdb>
4145 Amiga \"Rigid Disk Block\" format.
4153 DASD, used on IBM mainframes.
4161 Old Mac partition format. Modern Macs use C<gpt>.
4165 NEC PC-98 format, common in Japan apparently.
4173 ("part_add", (RErr, [Device "device"; String "prlogex"; Int64 "startsect"; Int64 "endsect"]), 209, [],
4174 [InitEmpty, Always, TestRun (
4175 [["part_init"; "/dev/sda"; "mbr"];
4176 ["part_add"; "/dev/sda"; "primary"; "1"; "-1"]]);
4177 InitEmpty, Always, TestRun (
4178 [["part_init"; "/dev/sda"; "gpt"];
4179 ["part_add"; "/dev/sda"; "primary"; "34"; "127"];
4180 ["part_add"; "/dev/sda"; "primary"; "128"; "-34"]]);
4181 InitEmpty, Always, TestRun (
4182 [["part_init"; "/dev/sda"; "mbr"];
4183 ["part_add"; "/dev/sda"; "primary"; "32"; "127"];
4184 ["part_add"; "/dev/sda"; "primary"; "128"; "255"];
4185 ["part_add"; "/dev/sda"; "primary"; "256"; "511"];
4186 ["part_add"; "/dev/sda"; "primary"; "512"; "-1"]])],
4187 "add a partition to the device",
4189 This command adds a partition to C<device>. If there is no partition
4190 table on the device, call C<guestfs_part_init> first.
4192 The C<prlogex> parameter is the type of partition. Normally you
4193 should pass C<p> or C<primary> here, but MBR partition tables also
4194 support C<l> (or C<logical>) and C<e> (or C<extended>) partition
4197 C<startsect> and C<endsect> are the start and end of the partition
4198 in I<sectors>. C<endsect> may be negative, which means it counts
4199 backwards from the end of the disk (C<-1> is the last sector).
4201 Creating a partition which covers the whole disk is not so easy.
4202 Use C<guestfs_part_disk> to do that.");
4204 ("part_disk", (RErr, [Device "device"; String "parttype"]), 210, [DangerWillRobinson],
4205 [InitEmpty, Always, TestRun (
4206 [["part_disk"; "/dev/sda"; "mbr"]]);
4207 InitEmpty, Always, TestRun (
4208 [["part_disk"; "/dev/sda"; "gpt"]])],
4209 "partition whole disk with a single primary partition",
4211 This command is simply a combination of C<guestfs_part_init>
4212 followed by C<guestfs_part_add> to create a single primary partition
4213 covering the whole disk.
4215 C<parttype> is the partition table type, usually C<mbr> or C<gpt>,
4216 but other possible values are described in C<guestfs_part_init>.");
4218 ("part_set_bootable", (RErr, [Device "device"; Int "partnum"; Bool "bootable"]), 211, [],
4219 [InitEmpty, Always, TestRun (
4220 [["part_disk"; "/dev/sda"; "mbr"];
4221 ["part_set_bootable"; "/dev/sda"; "1"; "true"]])],
4222 "make a partition bootable",
4224 This sets the bootable flag on partition numbered C<partnum> on
4225 device C<device>. Note that partitions are numbered from 1.
4227 The bootable flag is used by some operating systems (notably
4228 Windows) to determine which partition to boot from. It is by
4229 no means universally recognized.");
4231 ("part_set_name", (RErr, [Device "device"; Int "partnum"; String "name"]), 212, [],
4232 [InitEmpty, Always, TestRun (
4233 [["part_disk"; "/dev/sda"; "gpt"];
4234 ["part_set_name"; "/dev/sda"; "1"; "thepartname"]])],
4235 "set partition name",
4237 This sets the partition name on partition numbered C<partnum> on
4238 device C<device>. Note that partitions are numbered from 1.
4240 The partition name can only be set on certain types of partition
4241 table. This works on C<gpt> but not on C<mbr> partitions.");
4243 ("part_list", (RStructList ("partitions", "partition"), [Device "device"]), 213, [],
4244 [], (* XXX Add a regression test for this. *)
4245 "list partitions on a device",
4247 This command parses the partition table on C<device> and
4248 returns the list of partitions found.
4250 The fields in the returned structure are:
4256 Partition number, counting from 1.
4260 Start of the partition I<in bytes>. To get sectors you have to
4261 divide by the device's sector size, see C<guestfs_blockdev_getss>.
4265 End of the partition in bytes.
4269 Size of the partition in bytes.
4273 ("part_get_parttype", (RString "parttype", [Device "device"]), 214, [],
4274 [InitEmpty, Always, TestOutput (
4275 [["part_disk"; "/dev/sda"; "gpt"];
4276 ["part_get_parttype"; "/dev/sda"]], "gpt")],
4277 "get the partition table type",
4279 This command examines the partition table on C<device> and
4280 returns the partition table type (format) being used.
4282 Common return values include: C<msdos> (a DOS/Windows style MBR
4283 partition table), C<gpt> (a GPT/EFI-style partition table). Other
4284 values are possible, although unusual. See C<guestfs_part_init>
4287 ("fill", (RErr, [Int "c"; Int "len"; Pathname "path"]), 215, [],
4288 [InitBasicFS, Always, TestOutputBuffer (
4289 [["fill"; "0x63"; "10"; "/test"];
4290 ["read_file"; "/test"]], "cccccccccc")],
4291 "fill a file with octets",
4293 This command creates a new file called C<path>. The initial
4294 content of the file is C<len> octets of C<c>, where C<c>
4295 must be a number in the range C<[0..255]>.
4297 To fill a file with zero bytes (sparsely), it is
4298 much more efficient to use C<guestfs_truncate_size>.
4299 To create a file with a pattern of repeating bytes
4300 use C<guestfs_fill_pattern>.");
4302 ("available", (RErr, [StringList "groups"]), 216, [],
4303 [InitNone, Always, TestRun [["available"; ""]]],
4304 "test availability of some parts of the API",
4306 This command is used to check the availability of some
4307 groups of functionality in the appliance, which not all builds of
4308 the libguestfs appliance will be able to provide.
4310 The libguestfs groups, and the functions that those
4311 groups correspond to, are listed in L<guestfs(3)/AVAILABILITY>.
4312 You can also fetch this list at runtime by calling
4313 C<guestfs_available_all_groups>.
4315 The argument C<groups> is a list of group names, eg:
4316 C<[\"inotify\", \"augeas\"]> would check for the availability of
4317 the Linux inotify functions and Augeas (configuration file
4320 The command returns no error if I<all> requested groups are available.
4322 It fails with an error if one or more of the requested
4323 groups is unavailable in the appliance.
4325 If an unknown group name is included in the
4326 list of groups then an error is always returned.
4334 You must call C<guestfs_launch> before calling this function.
4336 The reason is because we don't know what groups are
4337 supported by the appliance/daemon until it is running and can
4342 If a group of functions is available, this does not necessarily
4343 mean that they will work. You still have to check for errors
4344 when calling individual API functions even if they are
4349 It is usually the job of distro packagers to build
4350 complete functionality into the libguestfs appliance.
4351 Upstream libguestfs, if built from source with all
4352 requirements satisfied, will support everything.
4356 This call was added in version C<1.0.80>. In previous
4357 versions of libguestfs all you could do would be to speculatively
4358 execute a command to find out if the daemon implemented it.
4359 See also C<guestfs_version>.
4363 ("dd", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"]), 217, [],
4364 [InitBasicFS, Always, TestOutputBuffer (
4365 [["write"; "/src"; "hello, world"];
4366 ["dd"; "/src"; "/dest"];
4367 ["read_file"; "/dest"]], "hello, world")],
4368 "copy from source to destination using dd",
4370 This command copies from one source device or file C<src>
4371 to another destination device or file C<dest>. Normally you
4372 would use this to copy to or from a device or partition, for
4373 example to duplicate a filesystem.
4375 If the destination is a device, it must be as large or larger
4376 than the source file or device, otherwise the copy will fail.
4377 This command cannot do partial copies (see C<guestfs_copy_size>).");
4379 ("filesize", (RInt64 "size", [Pathname "file"]), 218, [],
4380 [InitBasicFS, Always, TestOutputInt (
4381 [["write"; "/file"; "hello, world"];
4382 ["filesize"; "/file"]], 12)],
4383 "return the size of the file in bytes",
4385 This command returns the size of C<file> in bytes.
4387 To get other stats about a file, use C<guestfs_stat>, C<guestfs_lstat>,
4388 C<guestfs_is_dir>, C<guestfs_is_file> etc.
4389 To get the size of block devices, use C<guestfs_blockdev_getsize64>.");
4391 ("lvrename", (RErr, [String "logvol"; String "newlogvol"]), 219, [],
4392 [InitBasicFSonLVM, Always, TestOutputList (
4393 [["lvrename"; "/dev/VG/LV"; "/dev/VG/LV2"];
4394 ["lvs"]], ["/dev/VG/LV2"])],
4395 "rename an LVM logical volume",
4397 Rename a logical volume C<logvol> with the new name C<newlogvol>.");
4399 ("vgrename", (RErr, [String "volgroup"; String "newvolgroup"]), 220, [],
4400 [InitBasicFSonLVM, Always, TestOutputList (
4402 ["vg_activate"; "false"; "VG"];
4403 ["vgrename"; "VG"; "VG2"];
4404 ["vg_activate"; "true"; "VG2"];
4405 ["mount_options"; ""; "/dev/VG2/LV"; "/"];
4406 ["vgs"]], ["VG2"])],
4407 "rename an LVM volume group",
4409 Rename a volume group C<volgroup> with the new name C<newvolgroup>.");
4411 ("initrd_cat", (RBufferOut "content", [Pathname "initrdpath"; String "filename"]), 221, [ProtocolLimitWarning],
4412 [InitISOFS, Always, TestOutputBuffer (
4413 [["initrd_cat"; "/initrd"; "known-4"]], "abc\ndef\nghi")],
4414 "list the contents of a single file in an initrd",
4416 This command unpacks the file C<filename> from the initrd file
4417 called C<initrdpath>. The filename must be given I<without> the
4418 initial C</> character.
4420 For example, in guestfish you could use the following command
4421 to examine the boot script (usually called C</init>)
4422 contained in a Linux initrd or initramfs image:
4424 initrd-cat /boot/initrd-<version>.img init
4426 See also C<guestfs_initrd_list>.");
4428 ("pvuuid", (RString "uuid", [Device "device"]), 222, [],
4430 "get the UUID of a physical volume",
4432 This command returns the UUID of the LVM PV C<device>.");
4434 ("vguuid", (RString "uuid", [String "vgname"]), 223, [],
4436 "get the UUID of a volume group",
4438 This command returns the UUID of the LVM VG named C<vgname>.");
4440 ("lvuuid", (RString "uuid", [Device "device"]), 224, [],
4442 "get the UUID of a logical volume",
4444 This command returns the UUID of the LVM LV C<device>.");
4446 ("vgpvuuids", (RStringList "uuids", [String "vgname"]), 225, [],
4448 "get the PV UUIDs containing the volume group",
4450 Given a VG called C<vgname>, this returns the UUIDs of all
4451 the physical volumes that this volume group resides on.
4453 You can use this along with C<guestfs_pvs> and C<guestfs_pvuuid>
4454 calls to associate physical volumes and volume groups.
4456 See also C<guestfs_vglvuuids>.");
4458 ("vglvuuids", (RStringList "uuids", [String "vgname"]), 226, [],
4460 "get the LV UUIDs of all LVs in the volume group",
4462 Given a VG called C<vgname>, this returns the UUIDs of all
4463 the logical volumes created in this volume group.
4465 You can use this along with C<guestfs_lvs> and C<guestfs_lvuuid>
4466 calls to associate logical volumes and volume groups.
4468 See also C<guestfs_vgpvuuids>.");
4470 ("copy_size", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"; Int64 "size"]), 227, [],
4471 [InitBasicFS, Always, TestOutputBuffer (
4472 [["write"; "/src"; "hello, world"];
4473 ["copy_size"; "/src"; "/dest"; "5"];
4474 ["read_file"; "/dest"]], "hello")],
4475 "copy size bytes from source to destination using dd",
4477 This command copies exactly C<size> bytes from one source device
4478 or file C<src> to another destination device or file C<dest>.
4480 Note this will fail if the source is too short or if the destination
4481 is not large enough.");
4483 ("zero_device", (RErr, [Device "device"]), 228, [DangerWillRobinson],
4484 [InitBasicFSonLVM, Always, TestRun (
4485 [["zero_device"; "/dev/VG/LV"]])],
4486 "write zeroes to an entire device",
4488 This command writes zeroes over the entire C<device>. Compare
4489 with C<guestfs_zero> which just zeroes the first few blocks of
4492 ("txz_in", (RErr, [FileIn "tarball"; Pathname "directory"]), 229, [Optional "xz"],
4493 [InitBasicFS, Always, TestOutput (
4494 [["txz_in"; "../images/helloworld.tar.xz"; "/"];
4495 ["cat"; "/hello"]], "hello\n")],
4496 "unpack compressed tarball to directory",
4498 This command uploads and unpacks local file C<tarball> (an
4499 I<xz compressed> tar file) into C<directory>.");
4501 ("txz_out", (RErr, [Pathname "directory"; FileOut "tarball"]), 230, [Optional "xz"],
4503 "pack directory into compressed tarball",
4505 This command packs the contents of C<directory> and downloads
4506 it to local file C<tarball> (as an xz compressed tar archive).");
4508 ("ntfsresize", (RErr, [Device "device"]), 231, [Optional "ntfsprogs"],
4510 "resize an NTFS filesystem",
4512 This command resizes an NTFS filesystem, expanding or
4513 shrinking it to the size of the underlying device.
4514 See also L<ntfsresize(8)>.");
4516 ("vgscan", (RErr, []), 232, [],
4517 [InitEmpty, Always, TestRun (
4519 "rescan for LVM physical volumes, volume groups and logical volumes",
4521 This rescans all block devices and rebuilds the list of LVM
4522 physical volumes, volume groups and logical volumes.");
4524 ("part_del", (RErr, [Device "device"; Int "partnum"]), 233, [],
4525 [InitEmpty, Always, TestRun (
4526 [["part_init"; "/dev/sda"; "mbr"];
4527 ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
4528 ["part_del"; "/dev/sda"; "1"]])],
4529 "delete a partition",
4531 This command deletes the partition numbered C<partnum> on C<device>.
4533 Note that in the case of MBR partitioning, deleting an
4534 extended partition also deletes any logical partitions
4537 ("part_get_bootable", (RBool "bootable", [Device "device"; Int "partnum"]), 234, [],
4538 [InitEmpty, Always, TestOutputTrue (
4539 [["part_init"; "/dev/sda"; "mbr"];
4540 ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
4541 ["part_set_bootable"; "/dev/sda"; "1"; "true"];
4542 ["part_get_bootable"; "/dev/sda"; "1"]])],
4543 "return true if a partition is bootable",
4545 This command returns true if the partition C<partnum> on
4546 C<device> has the bootable flag set.
4548 See also C<guestfs_part_set_bootable>.");
4550 ("part_get_mbr_id", (RInt "idbyte", [Device "device"; Int "partnum"]), 235, [FishOutput FishOutputHexadecimal],
4551 [InitEmpty, Always, TestOutputInt (
4552 [["part_init"; "/dev/sda"; "mbr"];
4553 ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
4554 ["part_set_mbr_id"; "/dev/sda"; "1"; "0x7f"];
4555 ["part_get_mbr_id"; "/dev/sda"; "1"]], 0x7f)],
4556 "get the MBR type byte (ID byte) from a partition",
4558 Returns the MBR type byte (also known as the ID byte) from
4559 the numbered partition C<partnum>.
4561 Note that only MBR (old DOS-style) partitions have type bytes.
4562 You will get undefined results for other partition table
4563 types (see C<guestfs_part_get_parttype>).");
4565 ("part_set_mbr_id", (RErr, [Device "device"; Int "partnum"; Int "idbyte"]), 236, [],
4566 [], (* tested by part_get_mbr_id *)
4567 "set the MBR type byte (ID byte) of a partition",
4569 Sets the MBR type byte (also known as the ID byte) of
4570 the numbered partition C<partnum> to C<idbyte>. Note
4571 that the type bytes quoted in most documentation are
4572 in fact hexadecimal numbers, but usually documented
4573 without any leading \"0x\" which might be confusing.
4575 Note that only MBR (old DOS-style) partitions have type bytes.
4576 You will get undefined results for other partition table
4577 types (see C<guestfs_part_get_parttype>).");
4579 ("checksum_device", (RString "checksum", [String "csumtype"; Device "device"]), 237, [],
4580 [InitISOFS, Always, TestOutput (
4581 [["checksum_device"; "md5"; "/dev/sdd"]],
4582 (Digest.to_hex (Digest.file "images/test.iso")))],
4583 "compute MD5, SHAx or CRC checksum of the contents of a device",
4585 This call computes the MD5, SHAx or CRC checksum of the
4586 contents of the device named C<device>. For the types of
4587 checksums supported see the C<guestfs_checksum> command.");
4589 ("lvresize_free", (RErr, [Device "lv"; Int "percent"]), 238, [Optional "lvm2"],
4590 [InitNone, Always, TestRun (
4591 [["part_disk"; "/dev/sda"; "mbr"];
4592 ["pvcreate"; "/dev/sda1"];
4593 ["vgcreate"; "VG"; "/dev/sda1"];
4594 ["lvcreate"; "LV"; "VG"; "10"];
4595 ["lvresize_free"; "/dev/VG/LV"; "100"]])],
4596 "expand an LV to fill free space",
4598 This expands an existing logical volume C<lv> so that it fills
4599 C<pc>% of the remaining free space in the volume group. Commonly
4600 you would call this with pc = 100 which expands the logical volume
4601 as much as possible, using all remaining free space in the volume
4604 ("aug_clear", (RErr, [String "augpath"]), 239, [Optional "augeas"],
4605 [], (* XXX Augeas code needs tests. *)
4606 "clear Augeas path",
4608 Set the value associated with C<path> to C<NULL>. This
4609 is the same as the L<augtool(1)> C<clear> command.");
4611 ("get_umask", (RInt "mask", []), 240, [FishOutput FishOutputOctal],
4612 [InitEmpty, Always, TestOutputInt (
4613 [["get_umask"]], 0o22)],
4614 "get the current umask",
4616 Return the current umask. By default the umask is C<022>
4617 unless it has been set by calling C<guestfs_umask>.");
4619 ("debug_upload", (RErr, [FileIn "filename"; String "tmpname"; Int "mode"]), 241, [],
4621 "upload a file to the appliance (internal use only)",
4623 The C<guestfs_debug_upload> command uploads a file to
4624 the libguestfs appliance.
4626 There is no comprehensive help for this command. You have
4627 to look at the file C<daemon/debug.c> in the libguestfs source
4628 to find out what it is for.");
4630 ("base64_in", (RErr, [FileIn "base64file"; Pathname "filename"]), 242, [],
4631 [InitBasicFS, Always, TestOutput (
4632 [["base64_in"; "../images/hello.b64"; "/hello"];
4633 ["cat"; "/hello"]], "hello\n")],
4634 "upload base64-encoded data to file",
4636 This command uploads base64-encoded data from C<base64file>
4639 ("base64_out", (RErr, [Pathname "filename"; FileOut "base64file"]), 243, [],
4641 "download file and encode as base64",
4643 This command downloads the contents of C<filename>, writing
4644 it out to local file C<base64file> encoded as base64.");
4646 ("checksums_out", (RErr, [String "csumtype"; Pathname "directory"; FileOut "sumsfile"]), 244, [],
4648 "compute MD5, SHAx or CRC checksum of files in a directory",
4650 This command computes the checksums of all regular files in
4651 C<directory> and then emits a list of those checksums to
4652 the local output file C<sumsfile>.
4654 This can be used for verifying the integrity of a virtual
4655 machine. However to be properly secure you should pay
4656 attention to the output of the checksum command (it uses
4657 the ones from GNU coreutils). In particular when the
4658 filename is not printable, coreutils uses a special
4659 backslash syntax. For more information, see the GNU
4660 coreutils info file.");
4662 ("fill_pattern", (RErr, [String "pattern"; Int "len"; Pathname "path"]), 245, [],
4663 [InitBasicFS, Always, TestOutputBuffer (
4664 [["fill_pattern"; "abcdefghijklmnopqrstuvwxyz"; "28"; "/test"];
4665 ["read_file"; "/test"]], "abcdefghijklmnopqrstuvwxyzab")],
4666 "fill a file with a repeating pattern of bytes",
4668 This function is like C<guestfs_fill> except that it creates
4669 a new file of length C<len> containing the repeating pattern
4670 of bytes in C<pattern>. The pattern is truncated if necessary
4671 to ensure the length of the file is exactly C<len> bytes.");
4673 ("write", (RErr, [Pathname "path"; BufferIn "content"]), 246, [ProtocolLimitWarning],
4674 [InitBasicFS, Always, TestOutput (
4675 [["write"; "/new"; "new file contents"];
4676 ["cat"; "/new"]], "new file contents");
4677 InitBasicFS, Always, TestOutput (
4678 [["write"; "/new"; "\nnew file contents\n"];
4679 ["cat"; "/new"]], "\nnew file contents\n");
4680 InitBasicFS, Always, TestOutput (
4681 [["write"; "/new"; "\n\n"];
4682 ["cat"; "/new"]], "\n\n");
4683 InitBasicFS, Always, TestOutput (
4684 [["write"; "/new"; ""];
4685 ["cat"; "/new"]], "");
4686 InitBasicFS, Always, TestOutput (
4687 [["write"; "/new"; "\n\n\n"];
4688 ["cat"; "/new"]], "\n\n\n");
4689 InitBasicFS, Always, TestOutput (
4690 [["write"; "/new"; "\n"];
4691 ["cat"; "/new"]], "\n")],
4692 "create a new file",
4694 This call creates a file called C<path>. The content of the
4695 file is the string C<content> (which can contain any 8 bit data).");
4697 ("pwrite", (RInt "nbytes", [Pathname "path"; BufferIn "content"; Int64 "offset"]), 247, [ProtocolLimitWarning],
4698 [InitBasicFS, Always, TestOutput (
4699 [["write"; "/new"; "new file contents"];
4700 ["pwrite"; "/new"; "data"; "4"];
4701 ["cat"; "/new"]], "new data contents");
4702 InitBasicFS, Always, TestOutput (
4703 [["write"; "/new"; "new file contents"];
4704 ["pwrite"; "/new"; "is extended"; "9"];
4705 ["cat"; "/new"]], "new file is extended");
4706 InitBasicFS, Always, TestOutput (
4707 [["write"; "/new"; "new file contents"];
4708 ["pwrite"; "/new"; ""; "4"];
4709 ["cat"; "/new"]], "new file contents")],
4710 "write to part of a file",
4712 This command writes to part of a file. It writes the data
4713 buffer C<content> to the file C<path> starting at offset C<offset>.
4715 This command implements the L<pwrite(2)> system call, and like
4716 that system call it may not write the full data requested. The
4717 return value is the number of bytes that were actually written
4718 to the file. This could even be 0, although short writes are
4719 unlikely for regular files in ordinary circumstances.
4721 See also C<guestfs_pread>.");
4723 ("resize2fs_size", (RErr, [Device "device"; Int64 "size"]), 248, [],
4725 "resize an ext2, ext3 or ext4 filesystem (with size)",
4727 This command is the same as C<guestfs_resize2fs> except that it
4728 allows you to specify the new size (in bytes) explicitly.");
4730 ("pvresize_size", (RErr, [Device "device"; Int64 "size"]), 249, [Optional "lvm2"],
4732 "resize an LVM physical volume (with size)",
4734 This command is the same as C<guestfs_pvresize> except that it
4735 allows you to specify the new size (in bytes) explicitly.");
4737 ("ntfsresize_size", (RErr, [Device "device"; Int64 "size"]), 250, [Optional "ntfsprogs"],
4739 "resize an NTFS filesystem (with size)",
4741 This command is the same as C<guestfs_ntfsresize> except that it
4742 allows you to specify the new size (in bytes) explicitly.");
4744 ("available_all_groups", (RStringList "groups", []), 251, [],
4745 [InitNone, Always, TestRun [["available_all_groups"]]],
4746 "return a list of all optional groups",
4748 This command returns a list of all optional groups that this
4749 daemon knows about. Note this returns both supported and unsupported
4750 groups. To find out which ones the daemon can actually support
4751 you have to call C<guestfs_available> on each member of the
4754 See also C<guestfs_available> and L<guestfs(3)/AVAILABILITY>.");
4756 ("fallocate64", (RErr, [Pathname "path"; Int64 "len"]), 252, [],
4757 [InitBasicFS, Always, TestOutputStruct (
4758 [["fallocate64"; "/a"; "1000000"];
4759 ["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
4760 "preallocate a file in the guest filesystem",
4762 This command preallocates a file (containing zero bytes) named
4763 C<path> of size C<len> bytes. If the file exists already, it
4766 Note that this call allocates disk blocks for the file.
4767 To create a sparse file use C<guestfs_truncate_size> instead.
4769 The deprecated call C<guestfs_fallocate> does the same,
4770 but owing to an oversight it only allowed 30 bit lengths
4771 to be specified, effectively limiting the maximum size
4772 of files created through that call to 1GB.
4774 Do not confuse this with the guestfish-specific
4775 C<alloc> and C<sparse> commands which create
4776 a file in the host and attach it as a device.");
4778 ("vfs_label", (RString "label", [Device "device"]), 253, [],
4779 [InitBasicFS, Always, TestOutput (
4780 [["set_e2label"; "/dev/sda1"; "LTEST"];
4781 ["vfs_label"; "/dev/sda1"]], "LTEST")],
4782 "get the filesystem label",
4784 This returns the filesystem label of the filesystem on
4787 If the filesystem is unlabeled, this returns the empty string.");
4789 ("vfs_uuid", (RString "uuid", [Device "device"]), 254, [],
4790 (let uuid = uuidgen () in
4791 [InitBasicFS, Always, TestOutput (
4792 [["set_e2uuid"; "/dev/sda1"; uuid];
4793 ["vfs_uuid"; "/dev/sda1"]], uuid)]),
4794 "get the filesystem UUID",
4796 This returns the filesystem UUID of the filesystem on
4799 If the filesystem does not have a UUID, this returns the empty string.");
4803 let all_functions = non_daemon_functions @ daemon_functions
4805 (* In some places we want the functions to be displayed sorted
4806 * alphabetically, so this is useful:
4808 let all_functions_sorted =
4809 List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
4810 compare n1 n2) all_functions
4812 (* This is used to generate the src/MAX_PROC_NR file which
4813 * contains the maximum procedure number, a surrogate for the
4814 * ABI version number. See src/Makefile.am for the details.
4817 let proc_nrs = List.map (
4818 fun (_, _, proc_nr, _, _, _, _) -> proc_nr
4819 ) daemon_functions in
4820 List.fold_left max 0 proc_nrs
4822 (* Field types for structures. *)
4824 | FChar (* C 'char' (really, a 7 bit byte). *)
4825 | FString (* nul-terminated ASCII string, NOT NULL. *)
4826 | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
4831 | FBytes (* Any int measure that counts bytes. *)
4832 | FUUID (* 32 bytes long, NOT nul-terminated. *)
4833 | FOptPercent (* [0..100], or -1 meaning "not present". *)
4835 (* Because we generate extra parsing code for LVM command line tools,
4836 * we have to pull out the LVM columns separately here.
4846 "pv_attr", FString (* XXX *);
4847 "pv_pe_count", FInt64;
4848 "pv_pe_alloc_count", FInt64;
4851 "pv_mda_count", FInt64;
4852 "pv_mda_free", FBytes;
4853 (* Not in Fedora 10:
4854 "pv_mda_size", FBytes;
4861 "vg_attr", FString (* XXX *);
4864 "vg_sysid", FString;
4865 "vg_extent_size", FBytes;
4866 "vg_extent_count", FInt64;
4867 "vg_free_count", FInt64;
4872 "snap_count", FInt64;
4875 "vg_mda_count", FInt64;
4876 "vg_mda_free", FBytes;
4877 (* Not in Fedora 10:
4878 "vg_mda_size", FBytes;
4884 "lv_attr", FString (* XXX *);
4887 "lv_kernel_major", FInt64;
4888 "lv_kernel_minor", FInt64;
4890 "seg_count", FInt64;
4892 "snap_percent", FOptPercent;
4893 "copy_percent", FOptPercent;
4896 "mirror_log", FString;
4900 (* Names and fields in all structures (in RStruct and RStructList)
4904 (* The old RIntBool return type, only ever used for aug_defnode. Do
4905 * not use this struct in any new code.
4908 "i", FInt32; (* for historical compatibility *)
4909 "b", FInt32; (* for historical compatibility *)
4912 (* LVM PVs, VGs, LVs. *)
4913 "lvm_pv", lvm_pv_cols;
4914 "lvm_vg", lvm_vg_cols;
4915 "lvm_lv", lvm_lv_cols;
4917 (* Column names and types from stat structures.
4918 * NB. Can't use things like 'st_atime' because glibc header files
4919 * define some of these as macros. Ugh.
4950 (* Column names in dirent structure. *)
4953 (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
4958 (* Version numbers. *)
4966 (* Extended attribute. *)
4968 "attrname", FString;
4972 (* Inotify events. *)
4976 "in_cookie", FUInt32;
4980 (* Partition table entry. *)
4983 "part_start", FBytes;
4985 "part_size", FBytes;
4987 ] (* end of structs *)
4989 (* Ugh, Java has to be different ..
4990 * These names are also used by the Haskell bindings.
4992 let java_structs = [
4993 "int_bool", "IntBool";
4998 "statvfs", "StatVFS";
5000 "version", "Version";
5002 "inotify_event", "INotifyEvent";
5003 "partition", "Partition";
5006 (* What structs are actually returned. *)
5007 type rstructs_used_t = RStructOnly | RStructListOnly | RStructAndList
5009 (* Returns a list of RStruct/RStructList structs that are returned
5010 * by any function. Each element of returned list is a pair:
5012 * (structname, RStructOnly)
5013 * == there exists function which returns RStruct (_, structname)
5014 * (structname, RStructListOnly)
5015 * == there exists function which returns RStructList (_, structname)
5016 * (structname, RStructAndList)
5017 * == there are functions returning both RStruct (_, structname)
5018 * and RStructList (_, structname)
5020 let rstructs_used_by functions =
5021 (* ||| is a "logical OR" for rstructs_used_t *)
5025 | _, RStructAndList -> RStructAndList
5026 | RStructOnly, RStructListOnly
5027 | RStructListOnly, RStructOnly -> RStructAndList
5028 | RStructOnly, RStructOnly -> RStructOnly
5029 | RStructListOnly, RStructListOnly -> RStructListOnly
5032 let h = Hashtbl.create 13 in
5034 (* if elem->oldv exists, update entry using ||| operator,
5035 * else just add elem->newv to the hash
5037 let update elem newv =
5038 try let oldv = Hashtbl.find h elem in
5039 Hashtbl.replace h elem (newv ||| oldv)
5040 with Not_found -> Hashtbl.add h elem newv
5044 fun (_, style, _, _, _, _, _) ->
5045 match fst style with
5046 | RStruct (_, structname) -> update structname RStructOnly
5047 | RStructList (_, structname) -> update structname RStructListOnly
5051 (* return key->values as a list of (key,value) *)
5052 Hashtbl.fold (fun key value xs -> (key, value) :: xs) h []
5054 (* Used for testing language bindings. *)
5056 | CallString of string
5057 | CallOptString of string option
5058 | CallStringList of string list
5060 | CallInt64 of int64
5062 | CallBuffer of string
5064 (* Used to memoize the result of pod2text. *)
5065 let pod2text_memo_filename = "src/.pod2text.data"
5066 let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
5068 let chan = open_in pod2text_memo_filename in
5069 let v = input_value chan in
5073 _ -> Hashtbl.create 13
5074 let pod2text_memo_updated () =
5075 let chan = open_out pod2text_memo_filename in
5076 output_value chan pod2text_memo;
5079 (* Useful functions.
5080 * Note we don't want to use any external OCaml libraries which
5081 * makes this a bit harder than it should be.
5083 module StringMap = Map.Make (String)
5085 let failwithf fs = ksprintf failwith fs
5087 let unique = let i = ref 0 in fun () -> incr i; !i
5089 let replace_char s c1 c2 =
5090 let s2 = String.copy s in
5091 let r = ref false in
5092 for i = 0 to String.length s2 - 1 do
5093 if String.unsafe_get s2 i = c1 then (
5094 String.unsafe_set s2 i c2;
5098 if not !r then s else s2
5102 (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
5104 let triml ?(test = isspace) str =
5106 let n = ref (String.length str) in
5107 while !n > 0 && test str.[!i]; do
5112 else String.sub str !i !n
5114 let trimr ?(test = isspace) str =
5115 let n = ref (String.length str) in
5116 while !n > 0 && test str.[!n-1]; do
5119 if !n = String.length str then str
5120 else String.sub str 0 !n
5122 let trim ?(test = isspace) str =
5123 trimr ~test (triml ~test str)
5125 let rec find s sub =
5126 let len = String.length s in
5127 let sublen = String.length sub in
5129 if i <= len-sublen then (
5131 if j < sublen then (
5132 if s.[i+j] = sub.[j] then loop2 (j+1)
5138 if r = -1 then loop (i+1) else r
5144 let rec replace_str s s1 s2 =
5145 let len = String.length s in
5146 let sublen = String.length s1 in
5147 let i = find s s1 in
5150 let s' = String.sub s 0 i in
5151 let s'' = String.sub s (i+sublen) (len-i-sublen) in
5152 s' ^ s2 ^ replace_str s'' s1 s2
5155 let rec string_split sep str =
5156 let len = String.length str in
5157 let seplen = String.length sep in
5158 let i = find str sep in
5159 if i = -1 then [str]
5161 let s' = String.sub str 0 i in
5162 let s'' = String.sub str (i+seplen) (len-i-seplen) in
5163 s' :: string_split sep s''
5166 let files_equal n1 n2 =
5167 let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
5168 match Sys.command cmd with
5171 | i -> failwithf "%s: failed with error code %d" cmd i
5173 let rec filter_map f = function
5177 | Some y -> y :: filter_map f xs
5178 | None -> filter_map f xs
5180 let rec find_map f = function
5181 | [] -> raise Not_found
5185 | None -> find_map f xs
5188 let rec loop i = function
5190 | x :: xs -> f i x; loop (i+1) xs
5195 let rec loop i = function
5197 | x :: xs -> let r = f i x in r :: loop (i+1) xs
5201 let count_chars c str =
5202 let count = ref 0 in
5203 for i = 0 to String.length str - 1 do
5204 if c = String.unsafe_get str i then incr count
5210 for i = 0 to String.length str - 1 do
5211 let c = String.unsafe_get str i in
5216 let map_chars f str =
5217 List.map f (explode str)
5219 let name_of_argt = function
5220 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
5221 | StringList n | DeviceList n | Bool n | Int n | Int64 n
5222 | FileIn n | FileOut n | BufferIn n -> n
5224 let java_name_of_struct typ =
5225 try List.assoc typ java_structs
5228 "java_name_of_struct: no java_structs entry corresponding to %s" typ
5230 let cols_of_struct typ =
5231 try List.assoc typ structs
5233 failwithf "cols_of_struct: unknown struct %s" typ
5235 let seq_of_test = function
5236 | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
5237 | TestOutputListOfDevices (s, _)
5238 | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
5239 | TestOutputTrue s | TestOutputFalse s
5240 | TestOutputLength (s, _) | TestOutputBuffer (s, _)
5241 | TestOutputStruct (s, _)
5242 | TestLastFail s -> s
5244 (* Handling for function flags. *)
5245 let protocol_limit_warning =
5246 "Because of the message protocol, there is a transfer limit
5247 of somewhere between 2MB and 4MB. See L<guestfs(3)/PROTOCOL LIMITS>."
5249 let danger_will_robinson =
5250 "B<This command is dangerous. Without careful use you
5251 can easily destroy all your data>."
5253 let deprecation_notice flags =
5256 find_map (function DeprecatedBy str -> Some str | _ -> None) flags in
5258 sprintf "This function is deprecated.
5259 In new code, use the C<%s> call instead.
5261 Deprecated functions will not be removed from the API, but the
5262 fact that they are deprecated indicates that there are problems
5263 with correct use of these functions." alt in
5268 (* Create list of optional groups. *)
5270 let h = Hashtbl.create 13 in
5272 fun (name, _, _, flags, _, _, _) ->
5276 let names = try Hashtbl.find h group with Not_found -> [] in
5277 Hashtbl.replace h group (name :: names)
5281 let groups = Hashtbl.fold (fun k _ ks -> k :: ks) h [] in
5284 fun group -> group, List.sort compare (Hashtbl.find h group)
5286 List.sort (fun x y -> compare (fst x) (fst y)) groups
5288 (* Check function names etc. for consistency. *)
5289 let check_functions () =
5290 let contains_uppercase str =
5291 let len = String.length str in
5293 if i >= len then false
5296 if c >= 'A' && c <= 'Z' then true
5303 (* Check function names. *)
5305 fun (name, _, _, _, _, _, _) ->
5306 if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
5307 failwithf "function name %s does not need 'guestfs' prefix" name;
5309 failwithf "function name is empty";
5310 if name.[0] < 'a' || name.[0] > 'z' then
5311 failwithf "function name %s must start with lowercase a-z" name;
5312 if String.contains name '-' then
5313 failwithf "function name %s should not contain '-', use '_' instead."
5317 (* Check function parameter/return names. *)
5319 fun (name, style, _, _, _, _, _) ->
5320 let check_arg_ret_name n =
5321 if contains_uppercase n then
5322 failwithf "%s param/ret %s should not contain uppercase chars"
5324 if String.contains n '-' || String.contains n '_' then
5325 failwithf "%s param/ret %s should not contain '-' or '_'"
5328 failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" name;
5329 if n = "int" || n = "char" || n = "short" || n = "long" then
5330 failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
5331 if n = "i" || n = "n" then
5332 failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
5333 if n = "argv" || n = "args" then
5334 failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name;
5336 (* List Haskell, OCaml and C keywords here.
5337 * http://www.haskell.org/haskellwiki/Keywords
5338 * http://caml.inria.fr/pub/docs/manual-ocaml/lex.html#operator-char
5339 * http://en.wikipedia.org/wiki/C_syntax#Reserved_keywords
5340 * Formatted via: cat c haskell ocaml|sort -u|grep -vE '_|^val$' \
5341 * |perl -pe 's/(.+)/"$1";/'|fmt -70
5342 * Omitting _-containing words, since they're handled above.
5343 * Omitting the OCaml reserved word, "val", is ok,
5344 * and saves us from renaming several parameters.
5347 "and"; "as"; "asr"; "assert"; "auto"; "begin"; "break"; "case";
5348 "char"; "class"; "const"; "constraint"; "continue"; "data";
5349 "default"; "deriving"; "do"; "done"; "double"; "downto"; "else";
5350 "end"; "enum"; "exception"; "extern"; "external"; "false"; "float";
5351 "for"; "forall"; "foreign"; "fun"; "function"; "functor"; "goto";
5352 "hiding"; "if"; "import"; "in"; "include"; "infix"; "infixl";
5353 "infixr"; "inherit"; "initializer"; "inline"; "instance"; "int";
5355 "land"; "lazy"; "let"; "long"; "lor"; "lsl"; "lsr"; "lxor";
5356 "match"; "mdo"; "method"; "mod"; "module"; "mutable"; "new";
5357 "newtype"; "object"; "of"; "open"; "or"; "private"; "qualified";
5358 "rec"; "register"; "restrict"; "return"; "short"; "sig"; "signed";
5359 "sizeof"; "static"; "struct"; "switch"; "then"; "to"; "true"; "try";
5360 "type"; "typedef"; "union"; "unsigned"; "virtual"; "void";
5361 "volatile"; "when"; "where"; "while";
5363 if List.mem n reserved then
5364 failwithf "%s has param/ret using reserved word %s" name n;
5367 (match fst style with
5369 | RInt n | RInt64 n | RBool n
5370 | RConstString n | RConstOptString n | RString n
5371 | RStringList n | RStruct (n, _) | RStructList (n, _)
5372 | RHashtable n | RBufferOut n ->
5373 check_arg_ret_name n
5375 List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
5378 (* Check short descriptions. *)
5380 fun (name, _, _, _, _, shortdesc, _) ->
5381 if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
5382 failwithf "short description of %s should begin with lowercase." name;
5383 let c = shortdesc.[String.length shortdesc-1] in
5384 if c = '\n' || c = '.' then
5385 failwithf "short description of %s should not end with . or \\n." name
5388 (* Check long descriptions. *)
5390 fun (name, _, _, _, _, _, longdesc) ->
5391 if longdesc.[String.length longdesc-1] = '\n' then
5392 failwithf "long description of %s should not end with \\n." name
5395 (* Check proc_nrs. *)
5397 fun (name, _, proc_nr, _, _, _, _) ->
5398 if proc_nr <= 0 then
5399 failwithf "daemon function %s should have proc_nr > 0" name
5403 fun (name, _, proc_nr, _, _, _, _) ->
5404 if proc_nr <> -1 then
5405 failwithf "non-daemon function %s should have proc_nr -1" name
5406 ) non_daemon_functions;
5409 List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
5412 List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
5413 let rec loop = function
5416 | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
5418 | (name1,nr1) :: (name2,nr2) :: _ ->
5419 failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
5427 (* Ignore functions that have no tests. We generate a
5428 * warning when the user does 'make check' instead.
5430 | name, _, _, _, [], _, _ -> ()
5431 | name, _, _, _, tests, _, _ ->
5435 match seq_of_test test with
5437 failwithf "%s has a test containing an empty sequence" name
5438 | cmds -> List.map List.hd cmds
5440 let funcs = List.flatten funcs in
5442 let tested = List.mem name funcs in
5445 failwithf "function %s has tests but does not test itself" name
5448 (* 'pr' prints to the current output file. *)
5449 let chan = ref Pervasives.stdout
5454 let i = count_chars '\n' str in
5455 lines := !lines + i;
5456 output_string !chan str
5459 let copyright_years =
5460 let this_year = 1900 + (localtime (time ())).tm_year in
5461 if this_year > 2009 then sprintf "2009-%04d" this_year else "2009"
5463 (* Generate a header block in a number of standard styles. *)
5464 type comment_style =
5465 CStyle | CPlusPlusStyle | HashStyle | OCamlStyle | HaskellStyle
5466 type license = GPLv2plus | LGPLv2plus
5468 let generate_header ?(extra_inputs = []) comment license =
5469 let inputs = "src/generator.ml" :: extra_inputs in
5470 let c = match comment with
5471 | CStyle -> pr "/* "; " *"
5472 | CPlusPlusStyle -> pr "// "; "//"
5473 | HashStyle -> pr "# "; "#"
5474 | OCamlStyle -> pr "(* "; " *"
5475 | HaskellStyle -> pr "{- "; " " in
5476 pr "libguestfs generated file\n";
5477 pr "%s WARNING: THIS FILE IS GENERATED FROM:\n" c;
5478 List.iter (pr "%s %s\n" c) inputs;
5479 pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
5481 pr "%s Copyright (C) %s Red Hat Inc.\n" c copyright_years;
5485 pr "%s This program is free software; you can redistribute it and/or modify\n" c;
5486 pr "%s it under the terms of the GNU General Public License as published by\n" c;
5487 pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
5488 pr "%s (at your option) any later version.\n" c;
5490 pr "%s This program is distributed in the hope that it will be useful,\n" c;
5491 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
5492 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
5493 pr "%s GNU General Public License for more details.\n" c;
5495 pr "%s You should have received a copy of the GNU General Public License along\n" c;
5496 pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
5497 pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
5500 pr "%s This library is free software; you can redistribute it and/or\n" c;
5501 pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
5502 pr "%s License as published by the Free Software Foundation; either\n" c;
5503 pr "%s version 2 of the License, or (at your option) any later version.\n" c;
5505 pr "%s This library is distributed in the hope that it will be useful,\n" c;
5506 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
5507 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
5508 pr "%s Lesser General Public License for more details.\n" c;
5510 pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
5511 pr "%s License along with this library; if not, write to the Free Software\n" c;
5512 pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
5515 | CStyle -> pr " */\n"
5518 | OCamlStyle -> pr " *)\n"
5519 | HaskellStyle -> pr "-}\n"
5523 (* Start of main code generation functions below this line. *)
5525 (* Generate the pod documentation for the C API. *)
5526 let rec generate_actions_pod () =
5528 fun (shortname, style, _, flags, _, _, longdesc) ->
5529 if not (List.mem NotInDocs flags) then (
5530 let name = "guestfs_" ^ shortname in
5531 pr "=head2 %s\n\n" name;
5533 generate_prototype ~extern:false ~handle:"g" name style;
5535 pr "%s\n\n" longdesc;
5536 (match fst style with
5538 pr "This function returns 0 on success or -1 on error.\n\n"
5540 pr "On error this function returns -1.\n\n"
5542 pr "On error this function returns -1.\n\n"
5544 pr "This function returns a C truth value on success or -1 on error.\n\n"
5546 pr "This function returns a string, or NULL on error.
5547 The string is owned by the guest handle and must I<not> be freed.\n\n"
5548 | RConstOptString _ ->
5549 pr "This function returns a string which may be NULL.
5550 There is way to return an error from this function.
5551 The string is owned by the guest handle and must I<not> be freed.\n\n"
5553 pr "This function returns a string, or NULL on error.
5554 I<The caller must free the returned string after use>.\n\n"
5556 pr "This function returns a NULL-terminated array of strings
5557 (like L<environ(3)>), or NULL if there was an error.
5558 I<The caller must free the strings and the array after use>.\n\n"
5559 | RStruct (_, typ) ->
5560 pr "This function returns a C<struct guestfs_%s *>,
5561 or NULL if there was an error.
5562 I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
5563 | RStructList (_, typ) ->
5564 pr "This function returns a C<struct guestfs_%s_list *>
5565 (see E<lt>guestfs-structs.hE<gt>),
5566 or NULL if there was an error.
5567 I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
5569 pr "This function returns a NULL-terminated array of
5570 strings, or NULL if there was an error.
5571 The array of strings will always have length C<2n+1>, where
5572 C<n> keys and values alternate, followed by the trailing NULL entry.
5573 I<The caller must free the strings and the array after use>.\n\n"
5575 pr "This function returns a buffer, or NULL on error.
5576 The size of the returned buffer is written to C<*size_r>.
5577 I<The caller must free the returned buffer after use>.\n\n"
5579 if List.mem ProtocolLimitWarning flags then
5580 pr "%s\n\n" protocol_limit_warning;
5581 if List.mem DangerWillRobinson flags then
5582 pr "%s\n\n" danger_will_robinson;
5583 match deprecation_notice flags with
5585 | Some txt -> pr "%s\n\n" txt
5587 ) all_functions_sorted
5589 and generate_structs_pod () =
5590 (* Structs documentation. *)
5593 pr "=head2 guestfs_%s\n" typ;
5595 pr " struct guestfs_%s {\n" typ;
5598 | name, FChar -> pr " char %s;\n" name
5599 | name, FUInt32 -> pr " uint32_t %s;\n" name
5600 | name, FInt32 -> pr " int32_t %s;\n" name
5601 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
5602 | name, FInt64 -> pr " int64_t %s;\n" name
5603 | name, FString -> pr " char *%s;\n" name
5605 pr " /* The next two fields describe a byte array. */\n";
5606 pr " uint32_t %s_len;\n" name;
5607 pr " char *%s;\n" name
5609 pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
5610 pr " char %s[32];\n" name
5611 | name, FOptPercent ->
5612 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
5613 pr " float %s;\n" name
5617 pr " struct guestfs_%s_list {\n" typ;
5618 pr " uint32_t len; /* Number of elements in list. */\n";
5619 pr " struct guestfs_%s *val; /* Elements. */\n" typ;
5622 pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
5623 pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
5628 and generate_availability_pod () =
5629 (* Availability documentation. *)
5633 fun (group, functions) ->
5634 pr "=item B<%s>\n" group;
5636 pr "The following functions:\n";
5637 List.iter (pr "L</guestfs_%s>\n") functions;
5643 (* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
5644 * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
5646 * We have to use an underscore instead of a dash because otherwise
5647 * rpcgen generates incorrect code.
5649 * This header is NOT exported to clients, but see also generate_structs_h.
5651 and generate_xdr () =
5652 generate_header CStyle LGPLv2plus;
5654 (* This has to be defined to get around a limitation in Sun's rpcgen. *)
5655 pr "typedef string str<>;\n";
5658 (* Internal structures. *)
5662 pr "struct guestfs_int_%s {\n" typ;
5664 | name, FChar -> pr " char %s;\n" name
5665 | name, FString -> pr " string %s<>;\n" name
5666 | name, FBuffer -> pr " opaque %s<>;\n" name
5667 | name, FUUID -> pr " opaque %s[32];\n" name
5668 | name, (FInt32|FUInt32) -> pr " int %s;\n" name
5669 | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
5670 | name, FOptPercent -> pr " float %s;\n" name
5674 pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;
5679 fun (shortname, style, _, _, _, _, _) ->
5680 let name = "guestfs_" ^ shortname in
5682 (match snd style with
5685 pr "struct %s_args {\n" name;
5688 | Pathname n | Device n | Dev_or_Path n | String n ->
5689 pr " string %s<>;\n" n
5690 | OptString n -> pr " str *%s;\n" n
5691 | StringList n | DeviceList n -> pr " str %s<>;\n" n
5692 | Bool n -> pr " bool %s;\n" n
5693 | Int n -> pr " int %s;\n" n
5694 | Int64 n -> pr " hyper %s;\n" n
5696 pr " opaque %s<>;\n" n
5697 | FileIn _ | FileOut _ -> ()
5701 (match fst style with
5704 pr "struct %s_ret {\n" name;
5708 pr "struct %s_ret {\n" name;
5709 pr " hyper %s;\n" n;
5712 pr "struct %s_ret {\n" name;
5715 | RConstString _ | RConstOptString _ ->
5716 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5718 pr "struct %s_ret {\n" name;
5719 pr " string %s<>;\n" n;
5722 pr "struct %s_ret {\n" name;
5723 pr " str %s<>;\n" n;
5725 | RStruct (n, typ) ->
5726 pr "struct %s_ret {\n" name;
5727 pr " guestfs_int_%s %s;\n" typ n;
5729 | RStructList (n, typ) ->
5730 pr "struct %s_ret {\n" name;
5731 pr " guestfs_int_%s_list %s;\n" typ n;
5734 pr "struct %s_ret {\n" name;
5735 pr " str %s<>;\n" n;
5738 pr "struct %s_ret {\n" name;
5739 pr " opaque %s<>;\n" n;
5744 (* Table of procedure numbers. *)
5745 pr "enum guestfs_procedure {\n";
5747 fun (shortname, _, proc_nr, _, _, _, _) ->
5748 pr " GUESTFS_PROC_%s = %d,\n" (String.uppercase shortname) proc_nr
5750 pr " GUESTFS_PROC_NR_PROCS\n";
5754 (* Having to choose a maximum message size is annoying for several
5755 * reasons (it limits what we can do in the API), but it (a) makes
5756 * the protocol a lot simpler, and (b) provides a bound on the size
5757 * of the daemon which operates in limited memory space.
5759 pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
5762 (* Message header, etc. *)
5764 /* The communication protocol is now documented in the guestfs(3)
5768 const GUESTFS_PROGRAM = 0x2000F5F5;
5769 const GUESTFS_PROTOCOL_VERSION = 1;
5771 /* These constants must be larger than any possible message length. */
5772 const GUESTFS_LAUNCH_FLAG = 0xf5f55ff5;
5773 const GUESTFS_CANCEL_FLAG = 0xffffeeee;
5775 enum guestfs_message_direction {
5776 GUESTFS_DIRECTION_CALL = 0, /* client -> daemon */
5777 GUESTFS_DIRECTION_REPLY = 1 /* daemon -> client */
5780 enum guestfs_message_status {
5781 GUESTFS_STATUS_OK = 0,
5782 GUESTFS_STATUS_ERROR = 1
5785 const GUESTFS_ERROR_LEN = 256;
5787 struct guestfs_message_error {
5788 string error_message<GUESTFS_ERROR_LEN>;
5791 struct guestfs_message_header {
5792 unsigned prog; /* GUESTFS_PROGRAM */
5793 unsigned vers; /* GUESTFS_PROTOCOL_VERSION */
5794 guestfs_procedure proc; /* GUESTFS_PROC_x */
5795 guestfs_message_direction direction;
5796 unsigned serial; /* message serial number */
5797 guestfs_message_status status;
5800 const GUESTFS_MAX_CHUNK_SIZE = 8192;
5802 struct guestfs_chunk {
5803 int cancel; /* if non-zero, transfer is cancelled */
5804 /* data size is 0 bytes if the transfer has finished successfully */
5805 opaque data<GUESTFS_MAX_CHUNK_SIZE>;
5809 (* Generate the guestfs-structs.h file. *)
5810 and generate_structs_h () =
5811 generate_header CStyle LGPLv2plus;
5813 (* This is a public exported header file containing various
5814 * structures. The structures are carefully written to have
5815 * exactly the same in-memory format as the XDR structures that
5816 * we use on the wire to the daemon. The reason for creating
5817 * copies of these structures here is just so we don't have to
5818 * export the whole of guestfs_protocol.h (which includes much
5819 * unrelated and XDR-dependent stuff that we don't want to be
5820 * public, or required by clients).
5822 * To reiterate, we will pass these structures to and from the
5823 * client with a simple assignment or memcpy, so the format
5824 * must be identical to what rpcgen / the RFC defines.
5827 (* Public structures. *)
5830 pr "struct guestfs_%s {\n" typ;
5833 | name, FChar -> pr " char %s;\n" name
5834 | name, FString -> pr " char *%s;\n" name
5836 pr " uint32_t %s_len;\n" name;
5837 pr " char *%s;\n" name
5838 | name, FUUID -> pr " char %s[32]; /* this is NOT nul-terminated, be careful when printing */\n" name
5839 | name, FUInt32 -> pr " uint32_t %s;\n" name
5840 | name, FInt32 -> pr " int32_t %s;\n" name
5841 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
5842 | name, FInt64 -> pr " int64_t %s;\n" name
5843 | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
5847 pr "struct guestfs_%s_list {\n" typ;
5848 pr " uint32_t len;\n";
5849 pr " struct guestfs_%s *val;\n" typ;
5852 pr "extern void guestfs_free_%s (struct guestfs_%s *);\n" typ typ;
5853 pr "extern void guestfs_free_%s_list (struct guestfs_%s_list *);\n" typ typ;
5857 (* Generate the guestfs-actions.h file. *)
5858 and generate_actions_h () =
5859 generate_header CStyle LGPLv2plus;
5861 fun (shortname, style, _, _, _, _, _) ->
5862 let name = "guestfs_" ^ shortname in
5863 generate_prototype ~single_line:true ~newline:true ~handle:"g"
5867 (* Generate the guestfs-internal-actions.h file. *)
5868 and generate_internal_actions_h () =
5869 generate_header CStyle LGPLv2plus;
5871 fun (shortname, style, _, _, _, _, _) ->
5872 let name = "guestfs__" ^ shortname in
5873 generate_prototype ~single_line:true ~newline:true ~handle:"g"
5875 ) non_daemon_functions
5877 (* Generate the client-side dispatch stubs. *)
5878 and generate_client_actions () =
5879 generate_header CStyle LGPLv2plus;
5886 #include <inttypes.h>
5888 #include \"guestfs.h\"
5889 #include \"guestfs-internal.h\"
5890 #include \"guestfs-internal-actions.h\"
5891 #include \"guestfs_protocol.h\"
5893 #define error guestfs_error
5894 //#define perrorf guestfs_perrorf
5895 #define safe_malloc guestfs_safe_malloc
5896 #define safe_realloc guestfs_safe_realloc
5897 //#define safe_strdup guestfs_safe_strdup
5898 #define safe_memdup guestfs_safe_memdup
5900 /* Check the return message from a call for validity. */
5902 check_reply_header (guestfs_h *g,
5903 const struct guestfs_message_header *hdr,
5904 unsigned int proc_nr, unsigned int serial)
5906 if (hdr->prog != GUESTFS_PROGRAM) {
5907 error (g, \"wrong program (%%d/%%d)\", hdr->prog, GUESTFS_PROGRAM);
5910 if (hdr->vers != GUESTFS_PROTOCOL_VERSION) {
5911 error (g, \"wrong protocol version (%%d/%%d)\",
5912 hdr->vers, GUESTFS_PROTOCOL_VERSION);
5915 if (hdr->direction != GUESTFS_DIRECTION_REPLY) {
5916 error (g, \"unexpected message direction (%%d/%%d)\",
5917 hdr->direction, GUESTFS_DIRECTION_REPLY);
5920 if (hdr->proc != proc_nr) {
5921 error (g, \"unexpected procedure number (%%d/%%d)\", hdr->proc, proc_nr);
5924 if (hdr->serial != serial) {
5925 error (g, \"unexpected serial (%%d/%%d)\", hdr->serial, serial);
5932 /* Check we are in the right state to run a high-level action. */
5934 check_state (guestfs_h *g, const char *caller)
5936 if (!guestfs__is_ready (g)) {
5937 if (guestfs__is_config (g) || guestfs__is_launching (g))
5938 error (g, \"%%s: call launch before using this function\\n(in guestfish, don't forget to use the 'run' command)\",
5941 error (g, \"%%s called from the wrong state, %%d != READY\",
5942 caller, guestfs__get_state (g));
5950 let error_code_of = function
5951 | RErr | RInt _ | RInt64 _ | RBool _ -> "-1"
5952 | RConstString _ | RConstOptString _
5953 | RString _ | RStringList _
5954 | RStruct _ | RStructList _
5955 | RHashtable _ | RBufferOut _ -> "NULL"
5958 (* Generate code to check String-like parameters are not passed in
5959 * as NULL (returning an error if they are).
5961 let check_null_strings shortname style =
5962 let pr_newline = ref false in
5965 (* parameters which should not be NULL *)
5975 pr " if (%s == NULL) {\n" n;
5976 pr " error (g, \"%%s: %%s: parameter cannot be NULL\",\n";
5977 pr " \"%s\", \"%s\");\n" shortname n;
5978 pr " return %s;\n" (error_code_of (fst style));
5985 (* not applicable *)
5991 if !pr_newline then pr "\n";
5994 (* Generate code to generate guestfish call traces. *)
5995 let trace_call shortname style =
5996 pr " if (guestfs__get_trace (g)) {\n";
5999 List.exists (function
6000 | StringList _ | DeviceList _ -> true
6001 | _ -> false) (snd style) in
6007 pr " printf (\"%s\");\n" shortname;
6010 | String n (* strings *)
6017 (* guestfish doesn't support string escaping, so neither do we *)
6018 pr " printf (\" \\\"%%s\\\"\", %s);\n" n
6019 | OptString n -> (* string option *)
6020 pr " if (%s) printf (\" \\\"%%s\\\"\", %s);\n" n n;
6021 pr " else printf (\" null\");\n"
6023 | DeviceList n -> (* string list *)
6024 pr " putchar (' ');\n";
6025 pr " putchar ('\"');\n";
6026 pr " for (i = 0; %s[i]; ++i) {\n" n;
6027 pr " if (i > 0) putchar (' ');\n";
6028 pr " fputs (%s[i], stdout);\n" n;
6030 pr " putchar ('\"');\n";
6031 | Bool n -> (* boolean *)
6032 pr " fputs (%s ? \" true\" : \" false\", stdout);\n" n
6033 | Int n -> (* int *)
6034 pr " printf (\" %%d\", %s);\n" n
6036 pr " printf (\" %%\" PRIi64, %s);\n" n
6038 pr " putchar ('\\n');\n";
6043 (* For non-daemon functions, generate a wrapper around each function. *)
6045 fun (shortname, style, _, _, _, _, _) ->
6046 let name = "guestfs_" ^ shortname in
6048 generate_prototype ~extern:false ~semicolon:false ~newline:true
6049 ~handle:"g" name style;
6051 check_null_strings shortname style;
6052 trace_call shortname style;
6053 pr " return guestfs__%s " shortname;
6054 generate_c_call_args ~handle:"g" style;
6058 ) non_daemon_functions;
6060 (* Client-side stubs for each function. *)
6062 fun (shortname, style, _, _, _, _, _) ->
6063 let name = "guestfs_" ^ shortname in
6064 let error_code = error_code_of (fst style) in
6066 (* Generate the action stub. *)
6067 generate_prototype ~extern:false ~semicolon:false ~newline:true
6068 ~handle:"g" name style;
6072 (match snd style with
6074 | _ -> pr " struct %s_args args;\n" name
6077 pr " guestfs_message_header hdr;\n";
6078 pr " guestfs_message_error err;\n";
6080 match fst style with
6082 | RConstString _ | RConstOptString _ ->
6083 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
6085 | RBool _ | RString _ | RStringList _
6086 | RStruct _ | RStructList _
6087 | RHashtable _ | RBufferOut _ ->
6088 pr " struct %s_ret ret;\n" name;
6091 pr " int serial;\n";
6094 check_null_strings shortname style;
6095 trace_call shortname style;
6096 pr " if (check_state (g, \"%s\") == -1) return %s;\n"
6097 shortname error_code;
6098 pr " guestfs___set_busy (g);\n";
6101 (* Send the main header and arguments. *)
6102 (match snd style with
6104 pr " serial = guestfs___send (g, GUESTFS_PROC_%s, NULL, NULL);\n"
6105 (String.uppercase shortname)
6109 | Pathname n | Device n | Dev_or_Path n | String n ->
6110 pr " args.%s = (char *) %s;\n" n n
6112 pr " args.%s = %s ? (char **) &%s : NULL;\n" n n n
6113 | StringList n | DeviceList n ->
6114 pr " args.%s.%s_val = (char **) %s;\n" n n n;
6115 pr " for (args.%s.%s_len = 0; %s[args.%s.%s_len]; args.%s.%s_len++) ;\n" n n n n n n n;
6117 pr " args.%s = %s;\n" n n
6119 pr " args.%s = %s;\n" n n
6121 pr " args.%s = %s;\n" n n
6122 | FileIn _ | FileOut _ -> ()
6124 pr " /* Just catch grossly large sizes. XDR encoding will make this precise. */\n";
6125 pr " if (%s_size >= GUESTFS_MESSAGE_MAX) {\n" n;
6126 pr " error (g, \"%%s: size of input buffer too large\", \"%s\");\n"
6128 pr " guestfs___end_busy (g);\n";
6129 pr " return %s;\n" error_code;
6131 pr " args.%s.%s_val = (char *) %s;\n" n n n;
6132 pr " args.%s.%s_len = %s_size;\n" n n n
6134 pr " serial = guestfs___send (g, GUESTFS_PROC_%s,\n"
6135 (String.uppercase shortname);
6136 pr " (xdrproc_t) xdr_%s_args, (char *) &args);\n"
6139 pr " if (serial == -1) {\n";
6140 pr " guestfs___end_busy (g);\n";
6141 pr " return %s;\n" error_code;
6145 (* Send any additional files (FileIn) requested. *)
6146 let need_read_reply_label = ref false in
6150 pr " r = guestfs___send_file (g, %s);\n" n;
6151 pr " if (r == -1) {\n";
6152 pr " guestfs___end_busy (g);\n";
6153 pr " return %s;\n" error_code;
6155 pr " if (r == -2) /* daemon cancelled */\n";
6156 pr " goto read_reply;\n";
6157 need_read_reply_label := true;
6162 (* Wait for the reply from the remote end. *)
6163 if !need_read_reply_label then pr " read_reply:\n";
6164 pr " memset (&hdr, 0, sizeof hdr);\n";
6165 pr " memset (&err, 0, sizeof err);\n";
6166 if has_ret then pr " memset (&ret, 0, sizeof ret);\n";
6168 pr " r = guestfs___recv (g, \"%s\", &hdr, &err,\n " shortname;
6172 pr "(xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret" shortname;
6175 pr " if (r == -1) {\n";
6176 pr " guestfs___end_busy (g);\n";
6177 pr " return %s;\n" error_code;
6181 pr " if (check_reply_header (g, &hdr, GUESTFS_PROC_%s, serial) == -1) {\n"
6182 (String.uppercase shortname);
6183 pr " guestfs___end_busy (g);\n";
6184 pr " return %s;\n" error_code;
6188 pr " if (hdr.status == GUESTFS_STATUS_ERROR) {\n";
6189 pr " error (g, \"%%s: %%s\", \"%s\", err.error_message);\n" shortname;
6190 pr " free (err.error_message);\n";
6191 pr " guestfs___end_busy (g);\n";
6192 pr " return %s;\n" error_code;
6196 (* Expecting to receive further files (FileOut)? *)
6200 pr " if (guestfs___recv_file (g, %s) == -1) {\n" n;
6201 pr " guestfs___end_busy (g);\n";
6202 pr " return %s;\n" error_code;
6208 pr " guestfs___end_busy (g);\n";
6210 (match fst style with
6211 | RErr -> pr " return 0;\n"
6212 | RInt n | RInt64 n | RBool n ->
6213 pr " return ret.%s;\n" n
6214 | RConstString _ | RConstOptString _ ->
6215 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
6217 pr " return ret.%s; /* caller will free */\n" n
6218 | RStringList n | RHashtable n ->
6219 pr " /* caller will free this, but we need to add a NULL entry */\n";
6220 pr " ret.%s.%s_val =\n" n n;
6221 pr " safe_realloc (g, ret.%s.%s_val,\n" n n;
6222 pr " sizeof (char *) * (ret.%s.%s_len + 1));\n"
6224 pr " ret.%s.%s_val[ret.%s.%s_len] = NULL;\n" n n n n;
6225 pr " return ret.%s.%s_val;\n" n n
6227 pr " /* caller will free this */\n";
6228 pr " return safe_memdup (g, &ret.%s, sizeof (ret.%s));\n" n n
6229 | RStructList (n, _) ->
6230 pr " /* caller will free this */\n";
6231 pr " return safe_memdup (g, &ret.%s, sizeof (ret.%s));\n" n n
6233 pr " /* RBufferOut is tricky: If the buffer is zero-length, then\n";
6234 pr " * _val might be NULL here. To make the API saner for\n";
6235 pr " * callers, we turn this case into a unique pointer (using\n";
6236 pr " * malloc(1)).\n";
6238 pr " if (ret.%s.%s_len > 0) {\n" n n;
6239 pr " *size_r = ret.%s.%s_len;\n" n n;
6240 pr " return ret.%s.%s_val; /* caller will free */\n" n n;
6242 pr " free (ret.%s.%s_val);\n" n n;
6243 pr " char *p = safe_malloc (g, 1);\n";
6244 pr " *size_r = ret.%s.%s_len;\n" n n;
6252 (* Functions to free structures. *)
6253 pr "/* Structure-freeing functions. These rely on the fact that the\n";
6254 pr " * structure format is identical to the XDR format. See note in\n";
6255 pr " * generator.ml.\n";
6262 pr "guestfs_free_%s (struct guestfs_%s *x)\n" typ typ;
6264 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s, (char *) x);\n" typ;
6270 pr "guestfs_free_%s_list (struct guestfs_%s_list *x)\n" typ typ;
6272 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s_list, (char *) x);\n" typ;
6279 (* Generate daemon/actions.h. *)
6280 and generate_daemon_actions_h () =
6281 generate_header CStyle GPLv2plus;
6283 pr "#include \"../src/guestfs_protocol.h\"\n";
6287 fun (name, style, _, _, _, _, _) ->
6289 ~single_line:true ~newline:true ~in_daemon:true ~prefix:"do_"
6293 (* Generate the linker script which controls the visibility of
6294 * symbols in the public ABI and ensures no other symbols get
6295 * exported accidentally.
6297 and generate_linker_script () =
6298 generate_header HashStyle GPLv2plus;
6303 "guestfs_get_error_handler";
6304 "guestfs_get_out_of_memory_handler";
6305 "guestfs_last_error";
6306 "guestfs_set_error_handler";
6307 "guestfs_set_launch_done_callback";
6308 "guestfs_set_log_message_callback";
6309 "guestfs_set_out_of_memory_handler";
6310 "guestfs_set_subprocess_quit_callback";
6312 (* Unofficial parts of the API: the bindings code use these
6313 * functions, so it is useful to export them.
6315 "guestfs_safe_calloc";
6316 "guestfs_safe_malloc";
6319 List.map (fun (name, _, _, _, _, _, _) -> "guestfs_" ^ name)
6323 List.map (fun (typ, _) ->
6324 ["guestfs_free_" ^ typ; "guestfs_free_" ^ typ ^ "_list"])
6327 let globals = List.sort compare (globals @ functions @ structs) in
6331 List.iter (pr " %s;\n") globals;
6338 (* Generate the server-side stubs. *)
6339 and generate_daemon_actions () =
6340 generate_header CStyle GPLv2plus;
6342 pr "#include <config.h>\n";
6344 pr "#include <stdio.h>\n";
6345 pr "#include <stdlib.h>\n";
6346 pr "#include <string.h>\n";
6347 pr "#include <inttypes.h>\n";
6348 pr "#include <rpc/types.h>\n";
6349 pr "#include <rpc/xdr.h>\n";
6351 pr "#include \"daemon.h\"\n";
6352 pr "#include \"c-ctype.h\"\n";
6353 pr "#include \"../src/guestfs_protocol.h\"\n";
6354 pr "#include \"actions.h\"\n";
6358 fun (name, style, _, _, _, _, _) ->
6359 (* Generate server-side stubs. *)
6360 pr "static void %s_stub (XDR *xdr_in)\n" name;
6363 match fst style with
6364 | RErr | RInt _ -> pr " int r;\n"; "-1"
6365 | RInt64 _ -> pr " int64_t r;\n"; "-1"
6366 | RBool _ -> pr " int r;\n"; "-1"
6367 | RConstString _ | RConstOptString _ ->
6368 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
6369 | RString _ -> pr " char *r;\n"; "NULL"
6370 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
6371 | RStruct (_, typ) -> pr " guestfs_int_%s *r;\n" typ; "NULL"
6372 | RStructList (_, typ) -> pr " guestfs_int_%s_list *r;\n" typ; "NULL"
6374 pr " size_t size = 1;\n";
6378 (match snd style with
6381 pr " struct guestfs_%s_args args;\n" name;
6384 | Device n | Dev_or_Path n
6387 | OptString n -> pr " char *%s;\n" n
6388 | StringList n | DeviceList n -> pr " char **%s;\n" n
6389 | Bool n -> pr " int %s;\n" n
6390 | Int n -> pr " int %s;\n" n
6391 | Int64 n -> pr " int64_t %s;\n" n
6392 | FileIn _ | FileOut _ -> ()
6394 pr " const char *%s;\n" n;
6395 pr " size_t %s_size;\n" n
6401 List.exists (function FileIn _ -> true | _ -> false) (snd style) in
6403 (match snd style with
6406 pr " memset (&args, 0, sizeof args);\n";
6408 pr " if (!xdr_guestfs_%s_args (xdr_in, &args)) {\n" name;
6410 pr " if (cancel_receive () != -2)\n";
6411 pr " reply_with_error (\"daemon failed to decode procedure arguments\");\n";
6415 pr " char *%s = args.%s;\n" n n
6417 let pr_list_handling_code n =
6418 pr " %s = realloc (args.%s.%s_val,\n" n n n;
6419 pr " sizeof (char *) * (args.%s.%s_len+1));\n" n n;
6420 pr " if (%s == NULL) {\n" n;
6422 pr " if (cancel_receive () != -2)\n";
6423 pr " reply_with_perror (\"realloc\");\n";
6426 pr " %s[args.%s.%s_len] = NULL;\n" n n n;
6427 pr " args.%s.%s_val = %s;\n" n n n;
6433 pr " ABS_PATH (%s, %s, goto done);\n"
6434 n (if is_filein then "cancel_receive ()" else "0");
6437 pr " RESOLVE_DEVICE (%s, %s, goto done);\n"
6438 n (if is_filein then "cancel_receive ()" else "0");
6441 pr " REQUIRE_ROOT_OR_RESOLVE_DEVICE (%s, %s, goto done);\n"
6442 n (if is_filein then "cancel_receive ()" else "0");
6443 | String n -> pr_args n
6444 | OptString n -> pr " %s = args.%s ? *args.%s : NULL;\n" n n n
6446 pr_list_handling_code n;
6448 pr_list_handling_code n;
6449 pr " /* Ensure that each is a device,\n";
6450 pr " * and perform device name translation. */\n";
6451 pr " { int pvi; for (pvi = 0; physvols[pvi] != NULL; ++pvi)\n";
6452 pr " RESOLVE_DEVICE (physvols[pvi], %s, goto done);\n"
6453 (if is_filein then "cancel_receive ()" else "0");
6455 | Bool n -> pr " %s = args.%s;\n" n n
6456 | Int n -> pr " %s = args.%s;\n" n n
6457 | Int64 n -> pr " %s = args.%s;\n" n n
6458 | FileIn _ | FileOut _ -> ()
6460 pr " %s = args.%s.%s_val;\n" n n n;
6461 pr " %s_size = args.%s.%s_len;\n" n n n
6466 (* this is used at least for do_equal *)
6467 if List.exists (function Pathname _ -> true | _ -> false) (snd style) then (
6468 (* Emit NEED_ROOT just once, even when there are two or
6469 more Pathname args *)
6470 pr " NEED_ROOT (%s, goto done);\n"
6471 (if is_filein then "cancel_receive ()" else "0");
6474 (* Don't want to call the impl with any FileIn or FileOut
6475 * parameters, since these go "outside" the RPC protocol.
6478 List.filter (function FileIn _ | FileOut _ -> false | _ -> true)
6480 pr " r = do_%s " name;
6481 generate_c_call_args (fst style, args');
6484 (match fst style with
6485 | RErr | RInt _ | RInt64 _ | RBool _
6486 | RConstString _ | RConstOptString _
6487 | RString _ | RStringList _ | RHashtable _
6488 | RStruct (_, _) | RStructList (_, _) ->
6489 pr " if (r == %s)\n" error_code;
6490 pr " /* do_%s has already called reply_with_error */\n" name;
6494 pr " /* size == 0 && r == NULL could be a non-error case (just\n";
6495 pr " * an ordinary zero-length buffer), so be careful ...\n";
6497 pr " if (size == 1 && r == %s)\n" error_code;
6498 pr " /* do_%s has already called reply_with_error */\n" name;
6503 (* If there are any FileOut parameters, then the impl must
6504 * send its own reply.
6507 List.exists (function FileOut _ -> true | _ -> false) (snd style) in
6509 pr " /* do_%s has already sent a reply */\n" name
6511 match fst style with
6512 | RErr -> pr " reply (NULL, NULL);\n"
6513 | RInt n | RInt64 n | RBool n ->
6514 pr " struct guestfs_%s_ret ret;\n" name;
6515 pr " ret.%s = r;\n" n;
6516 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
6518 | RConstString _ | RConstOptString _ ->
6519 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
6521 pr " struct guestfs_%s_ret ret;\n" name;
6522 pr " ret.%s = r;\n" n;
6523 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
6526 | RStringList n | RHashtable n ->
6527 pr " struct guestfs_%s_ret ret;\n" name;
6528 pr " ret.%s.%s_len = count_strings (r);\n" n n;
6529 pr " ret.%s.%s_val = r;\n" n n;
6530 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
6532 pr " free_strings (r);\n"
6534 pr " struct guestfs_%s_ret ret;\n" name;
6535 pr " ret.%s = *r;\n" n;
6536 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
6538 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
6540 | RStructList (n, _) ->
6541 pr " struct guestfs_%s_ret ret;\n" name;
6542 pr " ret.%s = *r;\n" n;
6543 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
6545 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
6548 pr " struct guestfs_%s_ret ret;\n" name;
6549 pr " ret.%s.%s_val = r;\n" n n;
6550 pr " ret.%s.%s_len = size;\n" n n;
6551 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
6556 (* Free the args. *)
6558 (match snd style with
6561 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_args, (char *) &args);\n"
6568 (* Dispatch function. *)
6569 pr "void dispatch_incoming_message (XDR *xdr_in)\n";
6571 pr " switch (proc_nr) {\n";
6574 fun (name, style, _, _, _, _, _) ->
6575 pr " case GUESTFS_PROC_%s:\n" (String.uppercase name);
6576 pr " %s_stub (xdr_in);\n" name;
6581 pr " reply_with_error (\"dispatch_incoming_message: unknown procedure number %%d, set LIBGUESTFS_PATH to point to the matching libguestfs appliance directory\", proc_nr);\n";
6586 (* LVM columns and tokenization functions. *)
6587 (* XXX This generates crap code. We should rethink how we
6593 pr "static const char *lvm_%s_cols = \"%s\";\n"
6594 typ (String.concat "," (List.map fst cols));
6597 pr "static int lvm_tokenize_%s (char *str, guestfs_int_lvm_%s *r)\n" typ typ;
6599 pr " char *tok, *p, *next;\n";
6603 pr " fprintf (stderr, \"%%s: <<%%s>>\\n\", __func__, str);\n";
6606 pr " if (!str) {\n";
6607 pr " fprintf (stderr, \"%%s: failed: passed a NULL string\\n\", __func__);\n";
6610 pr " if (!*str || c_isspace (*str)) {\n";
6611 pr " fprintf (stderr, \"%%s: failed: passed a empty string or one beginning with whitespace\\n\", __func__);\n";
6616 fun (name, coltype) ->
6617 pr " if (!tok) {\n";
6618 pr " fprintf (stderr, \"%%s: failed: string finished early, around token %%s\\n\", __func__, \"%s\");\n" name;
6621 pr " p = strchrnul (tok, ',');\n";
6622 pr " if (*p) next = p+1; else next = NULL;\n";
6623 pr " *p = '\\0';\n";
6626 pr " r->%s = strdup (tok);\n" name;
6627 pr " if (r->%s == NULL) {\n" name;
6628 pr " perror (\"strdup\");\n";
6632 pr " for (i = j = 0; i < 32; ++j) {\n";
6633 pr " if (tok[j] == '\\0') {\n";
6634 pr " fprintf (stderr, \"%%s: failed to parse UUID from '%%s'\\n\", __func__, tok);\n";
6636 pr " } else if (tok[j] != '-')\n";
6637 pr " r->%s[i++] = tok[j];\n" name;
6640 pr " if (sscanf (tok, \"%%\"SCNu64, &r->%s) != 1) {\n" name;
6641 pr " fprintf (stderr, \"%%s: failed to parse size '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6645 pr " if (sscanf (tok, \"%%\"SCNi64, &r->%s) != 1) {\n" name;
6646 pr " fprintf (stderr, \"%%s: failed to parse int '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6650 pr " if (tok[0] == '\\0')\n";
6651 pr " r->%s = -1;\n" name;
6652 pr " else if (sscanf (tok, \"%%f\", &r->%s) != 1) {\n" name;
6653 pr " fprintf (stderr, \"%%s: failed to parse float '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6656 | FBuffer | FInt32 | FUInt32 | FUInt64 | FChar ->
6657 assert false (* can never be an LVM column *)
6659 pr " tok = next;\n";
6662 pr " if (tok != NULL) {\n";
6663 pr " fprintf (stderr, \"%%s: failed: extra tokens at end of string\\n\", __func__);\n";
6670 pr "guestfs_int_lvm_%s_list *\n" typ;
6671 pr "parse_command_line_%ss (void)\n" typ;
6673 pr " char *out, *err;\n";
6674 pr " char *p, *pend;\n";
6676 pr " guestfs_int_lvm_%s_list *ret;\n" typ;
6677 pr " void *newp;\n";
6679 pr " ret = malloc (sizeof *ret);\n";
6680 pr " if (!ret) {\n";
6681 pr " reply_with_perror (\"malloc\");\n";
6682 pr " return NULL;\n";
6685 pr " ret->guestfs_int_lvm_%s_list_len = 0;\n" typ;
6686 pr " ret->guestfs_int_lvm_%s_list_val = NULL;\n" typ;
6688 pr " r = command (&out, &err,\n";
6689 pr " \"lvm\", \"%ss\",\n" typ;
6690 pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ;
6691 pr " \"--nosuffix\", \"--separator\", \",\", \"--units\", \"b\", NULL);\n";
6692 pr " if (r == -1) {\n";
6693 pr " reply_with_error (\"%%s\", err);\n";
6694 pr " free (out);\n";
6695 pr " free (err);\n";
6696 pr " free (ret);\n";
6697 pr " return NULL;\n";
6700 pr " free (err);\n";
6702 pr " /* Tokenize each line of the output. */\n";
6705 pr " while (p) {\n";
6706 pr " pend = strchr (p, '\\n'); /* Get the next line of output. */\n";
6707 pr " if (pend) {\n";
6708 pr " *pend = '\\0';\n";
6712 pr " while (*p && c_isspace (*p)) /* Skip any leading whitespace. */\n";
6715 pr " if (!*p) { /* Empty line? Skip it. */\n";
6720 pr " /* Allocate some space to store this next entry. */\n";
6721 pr " newp = realloc (ret->guestfs_int_lvm_%s_list_val,\n" typ;
6722 pr " sizeof (guestfs_int_lvm_%s) * (i+1));\n" typ;
6723 pr " if (newp == NULL) {\n";
6724 pr " reply_with_perror (\"realloc\");\n";
6725 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
6726 pr " free (ret);\n";
6727 pr " free (out);\n";
6728 pr " return NULL;\n";
6730 pr " ret->guestfs_int_lvm_%s_list_val = newp;\n" typ;
6732 pr " /* Tokenize the next entry. */\n";
6733 pr " r = lvm_tokenize_%s (p, &ret->guestfs_int_lvm_%s_list_val[i]);\n" typ typ;
6734 pr " if (r == -1) {\n";
6735 pr " reply_with_error (\"failed to parse output of '%ss' command\");\n" typ;
6736 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
6737 pr " free (ret);\n";
6738 pr " free (out);\n";
6739 pr " return NULL;\n";
6746 pr " ret->guestfs_int_lvm_%s_list_len = i;\n" typ;
6748 pr " free (out);\n";
6749 pr " return ret;\n";
6752 ) ["pv", lvm_pv_cols; "vg", lvm_vg_cols; "lv", lvm_lv_cols]
6754 (* Generate a list of function names, for debugging in the daemon.. *)
6755 and generate_daemon_names () =
6756 generate_header CStyle GPLv2plus;
6758 pr "#include <config.h>\n";
6760 pr "#include \"daemon.h\"\n";
6763 pr "/* This array is indexed by proc_nr. See guestfs_protocol.x. */\n";
6764 pr "const char *function_names[] = {\n";
6766 fun (name, _, proc_nr, _, _, _, _) -> pr " [%d] = \"%s\",\n" proc_nr name
6770 (* Generate the optional groups for the daemon to implement
6771 * guestfs_available.
6773 and generate_daemon_optgroups_c () =
6774 generate_header CStyle GPLv2plus;
6776 pr "#include <config.h>\n";
6778 pr "#include \"daemon.h\"\n";
6779 pr "#include \"optgroups.h\"\n";
6782 pr "struct optgroup optgroups[] = {\n";
6785 pr " { \"%s\", optgroup_%s_available },\n" group group
6787 pr " { NULL, NULL }\n";
6790 and generate_daemon_optgroups_h () =
6791 generate_header CStyle GPLv2plus;
6795 pr "extern int optgroup_%s_available (void);\n" group
6798 (* Generate the tests. *)
6799 and generate_tests () =
6800 generate_header CStyle GPLv2plus;
6807 #include <sys/types.h>
6810 #include \"guestfs.h\"
6811 #include \"guestfs-internal.h\"
6813 static guestfs_h *g;
6814 static int suppress_error = 0;
6816 static void print_error (guestfs_h *g, void *data, const char *msg)
6818 if (!suppress_error)
6819 fprintf (stderr, \"%%s\\n\", msg);
6822 /* FIXME: nearly identical code appears in fish.c */
6823 static void print_strings (char *const *argv)
6827 for (argc = 0; argv[argc] != NULL; ++argc)
6828 printf (\"\\t%%s\\n\", argv[argc]);
6832 static void print_table (char const *const *argv)
6836 for (i = 0; argv[i] != NULL; i += 2)
6837 printf (\"%%s: %%s\\n\", argv[i], argv[i+1]);
6843 (* Generate a list of commands which are not tested anywhere. *)
6844 pr "static void no_test_warnings (void)\n";
6847 let hash : (string, bool) Hashtbl.t = Hashtbl.create 13 in
6849 fun (_, _, _, _, tests, _, _) ->
6850 let tests = filter_map (
6852 | (_, (Always|If _|Unless _), test) -> Some test
6853 | (_, Disabled, _) -> None
6855 let seq = List.concat (List.map seq_of_test tests) in
6856 let cmds_tested = List.map List.hd seq in
6857 List.iter (fun cmd -> Hashtbl.replace hash cmd true) cmds_tested
6861 fun (name, _, _, _, _, _, _) ->
6862 if not (Hashtbl.mem hash name) then
6863 pr " fprintf (stderr, \"warning: \\\"guestfs_%s\\\" has no tests\\n\");\n" name
6869 (* Generate the actual tests. Note that we generate the tests
6870 * in reverse order, deliberately, so that (in general) the
6871 * newest tests run first. This makes it quicker and easier to
6876 fun (name, _, _, flags, tests, _, _) ->
6877 mapi (generate_one_test name flags) tests
6878 ) (List.rev all_functions) in
6879 let test_names = List.concat test_names in
6880 let nr_tests = List.length test_names in
6883 int main (int argc, char *argv[])
6886 unsigned long int n_failed = 0;
6887 const char *filename;
6889 int nr_tests, test_num = 0;
6891 setbuf (stdout, NULL);
6893 no_test_warnings ();
6895 g = guestfs_create ();
6897 printf (\"guestfs_create FAILED\\n\");
6898 exit (EXIT_FAILURE);
6901 guestfs_set_error_handler (g, print_error, NULL);
6903 guestfs_set_path (g, \"../appliance\");
6905 filename = \"test1.img\";
6906 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6909 exit (EXIT_FAILURE);
6911 if (lseek (fd, %d, SEEK_SET) == -1) {
6915 exit (EXIT_FAILURE);
6917 if (write (fd, &c, 1) == -1) {
6921 exit (EXIT_FAILURE);
6923 if (close (fd) == -1) {
6926 exit (EXIT_FAILURE);
6928 if (guestfs_add_drive (g, filename) == -1) {
6929 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6930 exit (EXIT_FAILURE);
6933 filename = \"test2.img\";
6934 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6937 exit (EXIT_FAILURE);
6939 if (lseek (fd, %d, SEEK_SET) == -1) {
6943 exit (EXIT_FAILURE);
6945 if (write (fd, &c, 1) == -1) {
6949 exit (EXIT_FAILURE);
6951 if (close (fd) == -1) {
6954 exit (EXIT_FAILURE);
6956 if (guestfs_add_drive (g, filename) == -1) {
6957 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6958 exit (EXIT_FAILURE);
6961 filename = \"test3.img\";
6962 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6965 exit (EXIT_FAILURE);
6967 if (lseek (fd, %d, SEEK_SET) == -1) {
6971 exit (EXIT_FAILURE);
6973 if (write (fd, &c, 1) == -1) {
6977 exit (EXIT_FAILURE);
6979 if (close (fd) == -1) {
6982 exit (EXIT_FAILURE);
6984 if (guestfs_add_drive (g, filename) == -1) {
6985 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6986 exit (EXIT_FAILURE);
6989 if (guestfs_add_drive_ro (g, \"../images/test.iso\") == -1) {
6990 printf (\"guestfs_add_drive_ro ../images/test.iso FAILED\\n\");
6991 exit (EXIT_FAILURE);
6994 /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
6997 if (guestfs_launch (g) == -1) {
6998 printf (\"guestfs_launch FAILED\\n\");
6999 exit (EXIT_FAILURE);
7002 /* Cancel previous alarm. */
7007 " (500 * 1024 * 1024) (50 * 1024 * 1024) (10 * 1024 * 1024) nr_tests;
7011 pr " test_num++;\n";
7012 pr " if (guestfs_get_verbose (g))\n";
7013 pr " printf (\"-------------------------------------------------------------------------------\\n\");\n";
7014 pr " printf (\"%%3d/%%3d %s\\n\", test_num, nr_tests);\n" test_name;
7015 pr " if (%s () == -1) {\n" test_name;
7016 pr " printf (\"%s FAILED\\n\");\n" test_name;
7017 pr " n_failed++;\n";
7022 pr " guestfs_close (g);\n";
7023 pr " unlink (\"test1.img\");\n";
7024 pr " unlink (\"test2.img\");\n";
7025 pr " unlink (\"test3.img\");\n";
7028 pr " if (n_failed > 0) {\n";
7029 pr " printf (\"***** %%lu / %%d tests FAILED *****\\n\", n_failed, nr_tests);\n";
7030 pr " exit (EXIT_FAILURE);\n";
7034 pr " exit (EXIT_SUCCESS);\n";
7037 and generate_one_test name flags i (init, prereq, test) =
7038 let test_name = sprintf "test_%s_%d" name i in
7041 static int %s_skip (void)
7045 str = getenv (\"TEST_ONLY\");
7047 return strstr (str, \"%s\") == NULL;
7048 str = getenv (\"SKIP_%s\");
7049 if (str && STREQ (str, \"1\")) return 1;
7050 str = getenv (\"SKIP_TEST_%s\");
7051 if (str && STREQ (str, \"1\")) return 1;
7055 " test_name name (String.uppercase test_name) (String.uppercase name);
7058 | Disabled | Always -> ()
7059 | If code | Unless code ->
7060 pr "static int %s_prereq (void)\n" test_name;
7068 static int %s (void)
7071 printf (\" %%s skipped (reason: environment variable set)\\n\", \"%s\");
7075 " test_name test_name test_name;
7077 (* Optional functions should only be tested if the relevant
7078 * support is available in the daemon.
7084 pr " const char *groups[] = { \"%s\", NULL };\n" group;
7086 pr " suppress_error = 1;\n";
7087 pr " r = guestfs_available (g, (char **) groups);\n";
7088 pr " suppress_error = 0;\n";
7089 pr " if (r == -1) {\n";
7090 pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", groups[0]);\n" test_name;
7099 pr " printf (\" %%s skipped (reason: test disabled in generator)\\n\", \"%s\");\n" test_name
7101 pr " if (! %s_prereq ()) {\n" test_name;
7102 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
7106 generate_one_test_body name i test_name init test;
7108 pr " if (%s_prereq ()) {\n" test_name;
7109 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
7113 generate_one_test_body name i test_name init test;
7115 generate_one_test_body name i test_name init test
7123 and generate_one_test_body name i test_name init test =
7125 | InitNone (* XXX at some point, InitNone and InitEmpty became
7126 * folded together as the same thing. Really we should
7127 * make InitNone do nothing at all, but the tests may
7128 * need to be checked to make sure this is OK.
7131 pr " /* InitNone|InitEmpty for %s */\n" test_name;
7132 List.iter (generate_test_command_call test_name)
7133 [["blockdev_setrw"; "/dev/sda"];
7137 pr " /* InitPartition for %s: create /dev/sda1 */\n" test_name;
7138 List.iter (generate_test_command_call test_name)
7139 [["blockdev_setrw"; "/dev/sda"];
7142 ["part_disk"; "/dev/sda"; "mbr"]]
7144 pr " /* InitBasicFS for %s: create ext2 on /dev/sda1 */\n" test_name;
7145 List.iter (generate_test_command_call test_name)
7146 [["blockdev_setrw"; "/dev/sda"];
7149 ["part_disk"; "/dev/sda"; "mbr"];
7150 ["mkfs"; "ext2"; "/dev/sda1"];
7151 ["mount_options"; ""; "/dev/sda1"; "/"]]
7152 | InitBasicFSonLVM ->
7153 pr " /* InitBasicFSonLVM for %s: create ext2 on /dev/VG/LV */\n"
7155 List.iter (generate_test_command_call test_name)
7156 [["blockdev_setrw"; "/dev/sda"];
7159 ["part_disk"; "/dev/sda"; "mbr"];
7160 ["pvcreate"; "/dev/sda1"];
7161 ["vgcreate"; "VG"; "/dev/sda1"];
7162 ["lvcreate"; "LV"; "VG"; "8"];
7163 ["mkfs"; "ext2"; "/dev/VG/LV"];
7164 ["mount_options"; ""; "/dev/VG/LV"; "/"]]
7166 pr " /* InitISOFS for %s */\n" test_name;
7167 List.iter (generate_test_command_call test_name)
7168 [["blockdev_setrw"; "/dev/sda"];
7171 ["mount_ro"; "/dev/sdd"; "/"]]
7174 let get_seq_last = function
7176 failwithf "%s: you cannot use [] (empty list) when expecting a command"
7179 let seq = List.rev seq in
7180 List.rev (List.tl seq), List.hd seq
7185 pr " /* TestRun for %s (%d) */\n" name i;
7186 List.iter (generate_test_command_call test_name) seq
7187 | TestOutput (seq, expected) ->
7188 pr " /* TestOutput for %s (%d) */\n" name i;
7189 pr " const char *expected = \"%s\";\n" (c_quote expected);
7190 let seq, last = get_seq_last seq in
7192 pr " if (STRNEQ (r, expected)) {\n";
7193 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
7197 List.iter (generate_test_command_call test_name) seq;
7198 generate_test_command_call ~test test_name last
7199 | TestOutputList (seq, expected) ->
7200 pr " /* TestOutputList for %s (%d) */\n" name i;
7201 let seq, last = get_seq_last seq in
7205 pr " if (!r[%d]) {\n" i;
7206 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
7207 pr " print_strings (r);\n";
7211 pr " const char *expected = \"%s\";\n" (c_quote str);
7212 pr " if (STRNEQ (r[%d], expected)) {\n" i;
7213 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
7218 pr " if (r[%d] != NULL) {\n" (List.length expected);
7219 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
7221 pr " print_strings (r);\n";
7225 List.iter (generate_test_command_call test_name) seq;
7226 generate_test_command_call ~test test_name last
7227 | TestOutputListOfDevices (seq, expected) ->
7228 pr " /* TestOutputListOfDevices for %s (%d) */\n" name i;
7229 let seq, last = get_seq_last seq in
7233 pr " if (!r[%d]) {\n" i;
7234 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
7235 pr " print_strings (r);\n";
7239 pr " const char *expected = \"%s\";\n" (c_quote str);
7240 pr " r[%d][5] = 's';\n" i;
7241 pr " if (STRNEQ (r[%d], expected)) {\n" i;
7242 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
7247 pr " if (r[%d] != NULL) {\n" (List.length expected);
7248 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
7250 pr " print_strings (r);\n";
7254 List.iter (generate_test_command_call test_name) seq;
7255 generate_test_command_call ~test test_name last
7256 | TestOutputInt (seq, expected) ->
7257 pr " /* TestOutputInt for %s (%d) */\n" name i;
7258 let seq, last = get_seq_last seq in
7260 pr " if (r != %d) {\n" expected;
7261 pr " fprintf (stderr, \"%s: expected %d but got %%d\\n\","
7267 List.iter (generate_test_command_call test_name) seq;
7268 generate_test_command_call ~test test_name last
7269 | TestOutputIntOp (seq, op, expected) ->
7270 pr " /* TestOutputIntOp for %s (%d) */\n" name i;
7271 let seq, last = get_seq_last seq in
7273 pr " if (! (r %s %d)) {\n" op expected;
7274 pr " fprintf (stderr, \"%s: expected %s %d but got %%d\\n\","
7275 test_name op expected;
7280 List.iter (generate_test_command_call test_name) seq;
7281 generate_test_command_call ~test test_name last
7282 | TestOutputTrue seq ->
7283 pr " /* TestOutputTrue for %s (%d) */\n" name i;
7284 let seq, last = get_seq_last seq in
7287 pr " fprintf (stderr, \"%s: expected true, got false\\n\");\n"
7292 List.iter (generate_test_command_call test_name) seq;
7293 generate_test_command_call ~test test_name last
7294 | TestOutputFalse seq ->
7295 pr " /* TestOutputFalse for %s (%d) */\n" name i;
7296 let seq, last = get_seq_last seq in
7299 pr " fprintf (stderr, \"%s: expected false, got true\\n\");\n"
7304 List.iter (generate_test_command_call test_name) seq;
7305 generate_test_command_call ~test test_name last
7306 | TestOutputLength (seq, expected) ->
7307 pr " /* TestOutputLength for %s (%d) */\n" name i;
7308 let seq, last = get_seq_last seq in
7311 pr " for (j = 0; j < %d; ++j)\n" expected;
7312 pr " if (r[j] == NULL) {\n";
7313 pr " fprintf (stderr, \"%s: short list returned\\n\");\n"
7315 pr " print_strings (r);\n";
7318 pr " if (r[j] != NULL) {\n";
7319 pr " fprintf (stderr, \"%s: long list returned\\n\");\n"
7321 pr " print_strings (r);\n";
7325 List.iter (generate_test_command_call test_name) seq;
7326 generate_test_command_call ~test test_name last
7327 | TestOutputBuffer (seq, expected) ->
7328 pr " /* TestOutputBuffer for %s (%d) */\n" name i;
7329 pr " const char *expected = \"%s\";\n" (c_quote expected);
7330 let seq, last = get_seq_last seq in
7331 let len = String.length expected in
7333 pr " if (size != %d) {\n" len;
7334 pr " fprintf (stderr, \"%s: returned size of buffer wrong, expected %d but got %%zu\\n\", size);\n" test_name len;
7337 pr " if (STRNEQLEN (r, expected, size)) {\n";
7338 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
7342 List.iter (generate_test_command_call test_name) seq;
7343 generate_test_command_call ~test test_name last
7344 | TestOutputStruct (seq, checks) ->
7345 pr " /* TestOutputStruct for %s (%d) */\n" name i;
7346 let seq, last = get_seq_last seq in
7350 | CompareWithInt (field, expected) ->
7351 pr " if (r->%s != %d) {\n" field expected;
7352 pr " fprintf (stderr, \"%s: %s was %%d, expected %d\\n\",\n"
7353 test_name field expected;
7354 pr " (int) r->%s);\n" field;
7357 | CompareWithIntOp (field, op, expected) ->
7358 pr " if (!(r->%s %s %d)) {\n" field op expected;
7359 pr " fprintf (stderr, \"%s: %s was %%d, expected %s %d\\n\",\n"
7360 test_name field op expected;
7361 pr " (int) r->%s);\n" field;
7364 | CompareWithString (field, expected) ->
7365 pr " if (STRNEQ (r->%s, \"%s\")) {\n" field expected;
7366 pr " fprintf (stderr, \"%s: %s was \"%%s\", expected \"%s\"\\n\",\n"
7367 test_name field expected;
7368 pr " r->%s);\n" field;
7371 | CompareFieldsIntEq (field1, field2) ->
7372 pr " if (r->%s != r->%s) {\n" field1 field2;
7373 pr " fprintf (stderr, \"%s: %s (%%d) <> %s (%%d)\\n\",\n"
7374 test_name field1 field2;
7375 pr " (int) r->%s, (int) r->%s);\n" field1 field2;
7378 | CompareFieldsStrEq (field1, field2) ->
7379 pr " if (STRNEQ (r->%s, r->%s)) {\n" field1 field2;
7380 pr " fprintf (stderr, \"%s: %s (\"%%s\") <> %s (\"%%s\")\\n\",\n"
7381 test_name field1 field2;
7382 pr " r->%s, r->%s);\n" field1 field2;
7387 List.iter (generate_test_command_call test_name) seq;
7388 generate_test_command_call ~test test_name last
7389 | TestLastFail seq ->
7390 pr " /* TestLastFail for %s (%d) */\n" name i;
7391 let seq, last = get_seq_last seq in
7392 List.iter (generate_test_command_call test_name) seq;
7393 generate_test_command_call test_name ~expect_error:true last
7395 (* Generate the code to run a command, leaving the result in 'r'.
7396 * If you expect to get an error then you should set expect_error:true.
7398 and generate_test_command_call ?(expect_error = false) ?test test_name cmd =
7400 | [] -> assert false
7402 (* Look up the command to find out what args/ret it has. *)
7405 let _, style, _, _, _, _, _ =
7406 List.find (fun (n, _, _, _, _, _, _) -> n = name) all_functions in
7409 failwithf "%s: in test, command %s was not found" test_name name in
7411 if List.length (snd style) <> List.length args then
7412 failwithf "%s: in test, wrong number of args given to %s"
7419 | OptString n, "NULL" -> ()
7422 | Dev_or_Path n, arg
7424 | OptString n, arg ->
7425 pr " const char *%s = \"%s\";\n" n (c_quote arg);
7426 | BufferIn n, arg ->
7427 pr " const char *%s = \"%s\";\n" n (c_quote arg);
7428 pr " size_t %s_size = %d;\n" n (String.length arg)
7432 | FileIn _, _ | FileOut _, _ -> ()
7433 | StringList n, "" | DeviceList n, "" ->
7434 pr " const char *const %s[1] = { NULL };\n" n
7435 | StringList n, arg | DeviceList n, arg ->
7436 let strs = string_split " " arg in
7439 pr " const char *%s_%d = \"%s\";\n" n i (c_quote str);
7441 pr " const char *const %s[] = {\n" n;
7443 fun i _ -> pr " %s_%d,\n" n i
7447 ) (List.combine (snd style) args);
7450 match fst style with
7451 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
7452 | RInt64 _ -> pr " int64_t r;\n"; "-1"
7453 | RConstString _ | RConstOptString _ ->
7454 pr " const char *r;\n"; "NULL"
7455 | RString _ -> pr " char *r;\n"; "NULL"
7456 | RStringList _ | RHashtable _ ->
7460 | RStruct (_, typ) ->
7461 pr " struct guestfs_%s *r;\n" typ; "NULL"
7462 | RStructList (_, typ) ->
7463 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
7466 pr " size_t size;\n";
7469 pr " suppress_error = %d;\n" (if expect_error then 1 else 0);
7470 pr " r = guestfs_%s (g" name;
7472 (* Generate the parameters. *)
7475 | OptString _, "NULL" -> pr ", NULL"
7477 | Device n, _ | Dev_or_Path n, _
7482 pr ", %s, %s_size" n n
7483 | FileIn _, arg | FileOut _, arg ->
7484 pr ", \"%s\"" (c_quote arg)
7485 | StringList n, _ | DeviceList n, _ ->
7486 pr ", (char **) %s" n
7489 try int_of_string arg
7490 with Failure "int_of_string" ->
7491 failwithf "%s: expecting an int, but got '%s'" test_name arg in
7495 try Int64.of_string arg
7496 with Failure "int_of_string" ->
7497 failwithf "%s: expecting an int64, but got '%s'" test_name arg in
7500 let b = bool_of_string arg in pr ", %d" (if b then 1 else 0)
7501 ) (List.combine (snd style) args);
7503 (match fst style with
7504 | RBufferOut _ -> pr ", &size"
7510 if not expect_error then
7511 pr " if (r == %s)\n" error_code
7513 pr " if (r != %s)\n" error_code;
7516 (* Insert the test code. *)
7522 (match fst style with
7523 | RErr | RInt _ | RInt64 _ | RBool _
7524 | RConstString _ | RConstOptString _ -> ()
7525 | RString _ | RBufferOut _ -> pr " free (r);\n"
7526 | RStringList _ | RHashtable _ ->
7527 pr " for (i = 0; r[i] != NULL; ++i)\n";
7528 pr " free (r[i]);\n";
7530 | RStruct (_, typ) ->
7531 pr " guestfs_free_%s (r);\n" typ
7532 | RStructList (_, typ) ->
7533 pr " guestfs_free_%s_list (r);\n" typ
7539 let str = replace_str str "\r" "\\r" in
7540 let str = replace_str str "\n" "\\n" in
7541 let str = replace_str str "\t" "\\t" in
7542 let str = replace_str str "\000" "\\0" in
7545 (* Generate a lot of different functions for guestfish. *)
7546 and generate_fish_cmds () =
7547 generate_header CStyle GPLv2plus;
7551 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
7553 let all_functions_sorted =
7555 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
7556 ) all_functions_sorted in
7558 pr "#include <config.h>\n";
7560 pr "#include <stdio.h>\n";
7561 pr "#include <stdlib.h>\n";
7562 pr "#include <string.h>\n";
7563 pr "#include <inttypes.h>\n";
7565 pr "#include <guestfs.h>\n";
7566 pr "#include \"c-ctype.h\"\n";
7567 pr "#include \"full-write.h\"\n";
7568 pr "#include \"xstrtol.h\"\n";
7569 pr "#include \"fish.h\"\n";
7571 pr "/* Valid suffixes allowed for numbers. See Gnulib xstrtol function. */\n";
7572 pr "static const char *xstrtol_suffixes = \"0kKMGTPEZY\";\n";
7575 (* list_commands function, which implements guestfish -h *)
7576 pr "void list_commands (void)\n";
7578 pr " printf (\" %%-16s %%s\\n\", _(\"Command\"), _(\"Description\"));\n";
7579 pr " list_builtin_commands ();\n";
7581 fun (name, _, _, flags, _, shortdesc, _) ->
7582 let name = replace_char name '_' '-' in
7583 pr " printf (\"%%-20s %%s\\n\", \"%s\", _(\"%s\"));\n"
7585 ) all_functions_sorted;
7586 pr " printf (\" %%s\\n\",";
7587 pr " _(\"Use -h <cmd> / help <cmd> to show detailed help for a command.\"));\n";
7591 (* display_command function, which implements guestfish -h cmd *)
7592 pr "int display_command (const char *cmd)\n";
7595 fun (name, style, _, flags, _, shortdesc, longdesc) ->
7596 let name2 = replace_char name '_' '-' in
7598 try find_map (function FishAlias n -> Some n | _ -> None) flags
7599 with Not_found -> name in
7600 let longdesc = replace_str longdesc "C<guestfs_" "C<" in
7602 match snd style with
7606 name2 (String.concat " " (List.map name_of_argt args)) in
7609 if List.mem ProtocolLimitWarning flags then
7610 ("\n\n" ^ protocol_limit_warning)
7613 (* For DangerWillRobinson commands, we should probably have
7614 * guestfish prompt before allowing you to use them (especially
7615 * in interactive mode). XXX
7619 if List.mem DangerWillRobinson flags then
7620 ("\n\n" ^ danger_will_robinson)
7625 match deprecation_notice flags with
7627 | Some txt -> "\n\n" ^ txt in
7629 let describe_alias =
7630 if name <> alias then
7631 sprintf "\n\nYou can use '%s' as an alias for this command." alias
7635 pr "STRCASEEQ (cmd, \"%s\")" name;
7636 if name <> name2 then
7637 pr " || STRCASEEQ (cmd, \"%s\")" name2;
7638 if name <> alias then
7639 pr " || STRCASEEQ (cmd, \"%s\")" alias;
7641 pr " pod2text (\"%s\", _(\"%s\"), %S);\n"
7643 ("=head1 SYNOPSIS\n\n " ^ synopsis ^ "\n\n" ^
7644 "=head1 DESCRIPTION\n\n" ^
7645 longdesc ^ warnings ^ describe_alias);
7650 pr " return display_builtin_command (cmd);\n";
7654 let emit_print_list_function typ =
7655 pr "static void print_%s_list (struct guestfs_%s_list *%ss)\n"
7658 pr " unsigned int i;\n";
7660 pr " for (i = 0; i < %ss->len; ++i) {\n" typ;
7661 pr " printf (\"[%%d] = {\\n\", i);\n";
7662 pr " print_%s_indent (&%ss->val[i], \" \");\n" typ typ;
7663 pr " printf (\"}\\n\");\n";
7669 (* print_* functions *)
7673 List.exists (function (_, (FUUID|FBuffer)) -> true | _ -> false) cols in
7675 pr "static void print_%s_indent (struct guestfs_%s *%s, const char *indent)\n" typ typ typ;
7678 pr " unsigned int i;\n";
7684 pr " printf (\"%%s%s: %%s\\n\", indent, %s->%s);\n" name typ name
7686 pr " printf (\"%%s%s: \", indent);\n" name;
7687 pr " for (i = 0; i < 32; ++i)\n";
7688 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
7689 pr " printf (\"\\n\");\n"
7691 pr " printf (\"%%s%s: \", indent);\n" name;
7692 pr " for (i = 0; i < %s->%s_len; ++i)\n" typ name;
7693 pr " if (c_isprint (%s->%s[i]))\n" typ name;
7694 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
7696 pr " printf (\"\\\\x%%02x\", %s->%s[i]);\n" typ name;
7697 pr " printf (\"\\n\");\n"
7698 | name, (FUInt64|FBytes) ->
7699 pr " printf (\"%%s%s: %%\" PRIu64 \"\\n\", indent, %s->%s);\n"
7702 pr " printf (\"%%s%s: %%\" PRIi64 \"\\n\", indent, %s->%s);\n"
7705 pr " printf (\"%%s%s: %%\" PRIu32 \"\\n\", indent, %s->%s);\n"
7708 pr " printf (\"%%s%s: %%\" PRIi32 \"\\n\", indent, %s->%s);\n"
7711 pr " printf (\"%%s%s: %%c\\n\", indent, %s->%s);\n"
7713 | name, FOptPercent ->
7714 pr " if (%s->%s >= 0) printf (\"%%s%s: %%g %%%%\\n\", indent, %s->%s);\n"
7715 typ name name typ name;
7716 pr " else printf (\"%%s%s: \\n\", indent);\n" name
7722 (* Emit a print_TYPE_list function definition only if that function is used. *)
7725 | typ, (RStructListOnly | RStructAndList) ->
7726 (* generate the function for typ *)
7727 emit_print_list_function typ
7728 | typ, _ -> () (* empty *)
7729 ) (rstructs_used_by all_functions);
7731 (* Emit a print_TYPE function definition only if that function is used. *)
7734 | typ, (RStructOnly | RStructAndList) ->
7735 pr "static void print_%s (struct guestfs_%s *%s)\n" typ typ typ;
7737 pr " print_%s_indent (%s, \"\");\n" typ typ;
7740 | typ, _ -> () (* empty *)
7741 ) (rstructs_used_by all_functions);
7743 (* run_<action> actions *)
7745 fun (name, style, _, flags, _, _, _) ->
7746 pr "static int run_%s (const char *cmd, int argc, char *argv[])\n" name;
7748 (match fst style with
7751 | RBool _ -> pr " int r;\n"
7752 | RInt64 _ -> pr " int64_t r;\n"
7753 | RConstString _ | RConstOptString _ -> pr " const char *r;\n"
7754 | RString _ -> pr " char *r;\n"
7755 | RStringList _ | RHashtable _ -> pr " char **r;\n"
7756 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ
7757 | RStructList (_, typ) -> pr " struct guestfs_%s_list *r;\n" typ
7760 pr " size_t size;\n";
7766 | OptString n -> pr " const char *%s;\n" n
7770 | FileOut n -> pr " char *%s;\n" n
7772 pr " const char *%s;\n" n;
7773 pr " size_t %s_size;\n" n
7774 | StringList n | DeviceList n -> pr " char **%s;\n" n
7775 | Bool n -> pr " int %s;\n" n
7776 | Int n -> pr " int %s;\n" n
7777 | Int64 n -> pr " int64_t %s;\n" n
7780 (* Check and convert parameters. *)
7781 let argc_expected = List.length (snd style) in
7782 pr " if (argc != %d) {\n" argc_expected;
7783 pr " fprintf (stderr, _(\"%%s should have %%d parameter(s)\\n\"), cmd, %d);\n"
7785 pr " fprintf (stderr, _(\"type 'help %%s' for help on %%s\\n\"), cmd, cmd);\n";
7789 let parse_integer fn fntyp rtyp range name i =
7791 pr " strtol_error xerr;\n";
7792 pr " %s r;\n" fntyp;
7794 pr " xerr = %s (argv[%d], NULL, 0, &r, xstrtol_suffixes);\n" fn i;
7795 pr " if (xerr != LONGINT_OK) {\n";
7796 pr " fprintf (stderr,\n";
7797 pr " _(\"%%s: %%s: invalid integer parameter (%%s returned %%d)\\n\"),\n";
7798 pr " cmd, \"%s\", \"%s\", xerr);\n" name fn;
7803 | Some (min, max, comment) ->
7804 pr " /* %s */\n" comment;
7805 pr " if (r < %s || r > %s) {\n" min max;
7806 pr " fprintf (stderr, _(\"%%s: %%s: integer out of range\\n\"), cmd, \"%s\");\n"
7810 pr " /* The check above should ensure this assignment does not overflow. */\n";
7812 pr " %s = r;\n" name;
7821 pr " %s = argv[%d];\n" name i
7823 | Dev_or_Path name ->
7824 pr " %s = resolve_win_path (argv[%d]);\n" name i;
7825 pr " if (%s == NULL) return -1;\n" name
7827 pr " %s = STRNEQ (argv[%d], \"\") ? argv[%d] : NULL;\n"
7830 pr " %s = argv[%d];\n" name i;
7831 pr " %s_size = strlen (argv[%d]);\n" name i
7833 pr " %s = file_in (argv[%d]);\n" name i;
7834 pr " if (%s == NULL) return -1;\n" name
7836 pr " %s = file_out (argv[%d]);\n" name i;
7837 pr " if (%s == NULL) return -1;\n" name
7838 | StringList name | DeviceList name ->
7839 pr " %s = parse_string_list (argv[%d]);\n" name i;
7840 pr " if (%s == NULL) return -1;\n" name;
7842 pr " %s = is_true (argv[%d]) ? 1 : 0;\n" name i
7845 let min = "(-(2LL<<30))"
7846 and max = "((2LL<<30)-1)"
7848 "The Int type in the generator is a signed 31 bit int." in
7849 Some (min, max, comment) in
7850 parse_integer "xstrtoll" "long long" "int" range name i
7852 parse_integer "xstrtoll" "long long" "int64_t" None name i
7855 (* Call C API function. *)
7856 pr " r = guestfs_%s " name;
7857 generate_c_call_args ~handle:"g" style;
7862 | Device name | String name
7863 | OptString name | Bool name
7864 | Int name | Int64 name
7865 | BufferIn name -> ()
7866 | Pathname name | Dev_or_Path name | FileOut name ->
7867 pr " free (%s);\n" name
7869 pr " free_file_in (%s);\n" name
7870 | StringList name | DeviceList name ->
7871 pr " free_strings (%s);\n" name
7874 (* Any output flags? *)
7876 let flags = filter_map (
7877 function FishOutput flag -> Some flag | _ -> None
7883 failwithf "%s: more than one FishOutput flag is not allowed" name in
7885 (* Check return value for errors and display command results. *)
7886 (match fst style with
7887 | RErr -> pr " return r;\n"
7889 pr " if (r == -1) return -1;\n";
7890 (match fish_output with
7892 pr " printf (\"%%d\\n\", r);\n";
7893 | Some FishOutputOctal ->
7894 pr " printf (\"%%s%%o\\n\", r != 0 ? \"0\" : \"\", r);\n";
7895 | Some FishOutputHexadecimal ->
7896 pr " printf (\"%%s%%x\\n\", r != 0 ? \"0x\" : \"\", r);\n");
7899 pr " if (r == -1) return -1;\n";
7900 (match fish_output with
7902 pr " printf (\"%%\" PRIi64 \"\\n\", r);\n";
7903 | Some FishOutputOctal ->
7904 pr " printf (\"%%s%%\" PRIo64 \"\\n\", r != 0 ? \"0\" : \"\", r);\n";
7905 | Some FishOutputHexadecimal ->
7906 pr " printf (\"%%s%%\" PRIx64 \"\\n\", r != 0 ? \"0x\" : \"\", r);\n");
7909 pr " if (r == -1) return -1;\n";
7910 pr " if (r) printf (\"true\\n\"); else printf (\"false\\n\");\n";
7913 pr " if (r == NULL) return -1;\n";
7914 pr " printf (\"%%s\\n\", r);\n";
7916 | RConstOptString _ ->
7917 pr " printf (\"%%s\\n\", r ? : \"(null)\");\n";
7920 pr " if (r == NULL) return -1;\n";
7921 pr " printf (\"%%s\\n\", r);\n";
7925 pr " if (r == NULL) return -1;\n";
7926 pr " print_strings (r);\n";
7927 pr " free_strings (r);\n";
7929 | RStruct (_, typ) ->
7930 pr " if (r == NULL) return -1;\n";
7931 pr " print_%s (r);\n" typ;
7932 pr " guestfs_free_%s (r);\n" typ;
7934 | RStructList (_, typ) ->
7935 pr " if (r == NULL) return -1;\n";
7936 pr " print_%s_list (r);\n" typ;
7937 pr " guestfs_free_%s_list (r);\n" typ;
7940 pr " if (r == NULL) return -1;\n";
7941 pr " print_table (r);\n";
7942 pr " free_strings (r);\n";
7945 pr " if (r == NULL) return -1;\n";
7946 pr " if (full_write (1, r, size) != size) {\n";
7947 pr " perror (\"write\");\n";
7958 (* run_action function *)
7959 pr "int run_action (const char *cmd, int argc, char *argv[])\n";
7962 fun (name, _, _, flags, _, _, _) ->
7963 let name2 = replace_char name '_' '-' in
7965 try find_map (function FishAlias n -> Some n | _ -> None) flags
7966 with Not_found -> name in
7968 pr "STRCASEEQ (cmd, \"%s\")" name;
7969 if name <> name2 then
7970 pr " || STRCASEEQ (cmd, \"%s\")" name2;
7971 if name <> alias then
7972 pr " || STRCASEEQ (cmd, \"%s\")" alias;
7974 pr " return run_%s (cmd, argc, argv);\n" name;
7978 pr " fprintf (stderr, _(\"%%s: unknown command\\n\"), cmd);\n";
7979 pr " if (command_num == 1)\n";
7980 pr " extended_help_message ();\n";
7987 (* Readline completion for guestfish. *)
7988 and generate_fish_completion () =
7989 generate_header CStyle GPLv2plus;
7993 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
8003 #ifdef HAVE_LIBREADLINE
8004 #include <readline/readline.h>
8009 #ifdef HAVE_LIBREADLINE
8011 static const char *const commands[] = {
8012 BUILTIN_COMMANDS_FOR_COMPLETION,
8015 (* Get the commands, including the aliases. They don't need to be
8016 * sorted - the generator() function just does a dumb linear search.
8020 fun (name, _, _, flags, _, _, _) ->
8021 let name2 = replace_char name '_' '-' in
8023 try find_map (function FishAlias n -> Some n | _ -> None) flags
8024 with Not_found -> name in
8026 if name <> alias then [name2; alias] else [name2]
8028 let commands = List.flatten commands in
8030 List.iter (pr " \"%s\",\n") commands;
8036 generator (const char *text, int state)
8038 static int index, len;
8043 len = strlen (text);
8046 rl_attempted_completion_over = 1;
8048 while ((name = commands[index]) != NULL) {
8050 if (STRCASEEQLEN (name, text, len))
8051 return strdup (name);
8057 #endif /* HAVE_LIBREADLINE */
8059 #ifdef HAVE_RL_COMPLETION_MATCHES
8060 #define RL_COMPLETION_MATCHES rl_completion_matches
8062 #ifdef HAVE_COMPLETION_MATCHES
8063 #define RL_COMPLETION_MATCHES completion_matches
8065 #endif /* else just fail if we don't have either symbol */
8068 do_completion (const char *text, int start, int end)
8070 char **matches = NULL;
8072 #ifdef HAVE_LIBREADLINE
8073 rl_completion_append_character = ' ';
8076 matches = RL_COMPLETION_MATCHES (text, generator);
8077 else if (complete_dest_paths)
8078 matches = RL_COMPLETION_MATCHES (text, complete_dest_paths_generator);
8085 (* Generate the POD documentation for guestfish. *)
8086 and generate_fish_actions_pod () =
8087 let all_functions_sorted =
8089 fun (_, _, _, flags, _, _, _) ->
8090 not (List.mem NotInFish flags || List.mem NotInDocs flags)
8091 ) all_functions_sorted in
8093 let rex = Str.regexp "C<guestfs_\\([^>]+\\)>" in
8096 fun (name, style, _, flags, _, _, longdesc) ->
8098 Str.global_substitute rex (
8101 try Str.matched_group 1 s
8103 failwithf "error substituting C<guestfs_...> in longdesc of function %s" name in
8104 "C<" ^ replace_char sub '_' '-' ^ ">"
8106 let name = replace_char name '_' '-' in
8108 try find_map (function FishAlias n -> Some n | _ -> None) flags
8109 with Not_found -> name in
8111 pr "=head2 %s" name;
8112 if name <> alias then
8119 | Pathname n | Device n | Dev_or_Path n | String n -> pr " %s" n
8120 | OptString n -> pr " %s" n
8121 | StringList n | DeviceList n -> pr " '%s ...'" n
8122 | Bool _ -> pr " true|false"
8123 | Int n -> pr " %s" n
8124 | Int64 n -> pr " %s" n
8125 | FileIn n | FileOut n -> pr " (%s|-)" n
8126 | BufferIn n -> pr " %s" n
8130 pr "%s\n\n" longdesc;
8132 if List.exists (function FileIn _ | FileOut _ -> true
8133 | _ -> false) (snd style) then
8134 pr "Use C<-> instead of a filename to read/write from stdin/stdout.\n\n";
8136 if List.mem ProtocolLimitWarning flags then
8137 pr "%s\n\n" protocol_limit_warning;
8139 if List.mem DangerWillRobinson flags then
8140 pr "%s\n\n" danger_will_robinson;
8142 match deprecation_notice flags with
8144 | Some txt -> pr "%s\n\n" txt
8145 ) all_functions_sorted
8147 (* Generate a C function prototype. *)
8148 and generate_prototype ?(extern = true) ?(static = false) ?(semicolon = true)
8149 ?(single_line = false) ?(newline = false) ?(in_daemon = false)
8151 ?handle name style =
8152 if extern then pr "extern ";
8153 if static then pr "static ";
8154 (match fst style with
8156 | RInt _ -> pr "int "
8157 | RInt64 _ -> pr "int64_t "
8158 | RBool _ -> pr "int "
8159 | RConstString _ | RConstOptString _ -> pr "const char *"
8160 | RString _ | RBufferOut _ -> pr "char *"
8161 | RStringList _ | RHashtable _ -> pr "char **"
8162 | RStruct (_, typ) ->
8163 if not in_daemon then pr "struct guestfs_%s *" typ
8164 else pr "guestfs_int_%s *" typ
8165 | RStructList (_, typ) ->
8166 if not in_daemon then pr "struct guestfs_%s_list *" typ
8167 else pr "guestfs_int_%s_list *" typ
8169 let is_RBufferOut = match fst style with RBufferOut _ -> true | _ -> false in
8170 pr "%s%s (" prefix name;
8171 if handle = None && List.length (snd style) = 0 && not is_RBufferOut then
8174 let comma = ref false in
8177 | Some handle -> pr "guestfs_h *%s" handle; comma := true
8181 if single_line then pr ", " else pr ",\n\t\t"
8188 | Device n | Dev_or_Path n
8192 pr "const char *%s" n
8193 | StringList n | DeviceList n ->
8195 pr "char *const *%s" n
8196 | Bool n -> next (); pr "int %s" n
8197 | Int n -> next (); pr "int %s" n
8198 | Int64 n -> next (); pr "int64_t %s" n
8201 if not in_daemon then (next (); pr "const char *%s" n)
8204 pr "const char *%s" n;
8206 pr "size_t %s_size" n
8208 if is_RBufferOut then (next (); pr "size_t *size_r");
8211 if semicolon then pr ";";
8212 if newline then pr "\n"
8214 (* Generate C call arguments, eg "(handle, foo, bar)" *)
8215 and generate_c_call_args ?handle ?(decl = false) style =
8217 let comma = ref false in
8219 if !comma then pr ", ";
8224 | Some handle -> pr "%s" handle; comma := true
8230 pr "%s, %s_size" n n
8233 pr "%s" (name_of_argt arg)
8235 (* For RBufferOut calls, add implicit &size parameter. *)
8237 match fst style with
8245 (* Generate the OCaml bindings interface. *)
8246 and generate_ocaml_mli () =
8247 generate_header OCamlStyle LGPLv2plus;
8250 (** For API documentation you should refer to the C API
8251 in the guestfs(3) manual page. The OCaml API uses almost
8252 exactly the same calls. *)
8255 (** A [guestfs_h] handle. *)
8257 exception Error of string
8258 (** This exception is raised when there is an error. *)
8260 exception Handle_closed of string
8261 (** This exception is raised if you use a {!Guestfs.t} handle
8262 after calling {!close} on it. The string is the name of
8265 val create : unit -> t
8266 (** Create a {!Guestfs.t} handle. *)
8268 val close : t -> unit
8269 (** Close the {!Guestfs.t} handle and free up all resources used
8272 Handles are closed by the garbage collector when they become
8273 unreferenced, but callers can call this in order to provide
8274 predictable cleanup. *)
8277 generate_ocaml_structure_decls ();
8281 fun (name, style, _, _, _, shortdesc, _) ->
8282 generate_ocaml_prototype name style;
8283 pr "(** %s *)\n" shortdesc;
8285 ) all_functions_sorted
8287 (* Generate the OCaml bindings implementation. *)
8288 and generate_ocaml_ml () =
8289 generate_header OCamlStyle LGPLv2plus;
8294 exception Error of string
8295 exception Handle_closed of string
8297 external create : unit -> t = \"ocaml_guestfs_create\"
8298 external close : t -> unit = \"ocaml_guestfs_close\"
8300 (* Give the exceptions names, so they can be raised from the C code. *)
8302 Callback.register_exception \"ocaml_guestfs_error\" (Error \"\");
8303 Callback.register_exception \"ocaml_guestfs_closed\" (Handle_closed \"\")
8307 generate_ocaml_structure_decls ();
8311 fun (name, style, _, _, _, shortdesc, _) ->
8312 generate_ocaml_prototype ~is_external:true name style;
8313 ) all_functions_sorted
8315 (* Generate the OCaml bindings C implementation. *)
8316 and generate_ocaml_c () =
8317 generate_header CStyle LGPLv2plus;
8324 #include <caml/config.h>
8325 #include <caml/alloc.h>
8326 #include <caml/callback.h>
8327 #include <caml/fail.h>
8328 #include <caml/memory.h>
8329 #include <caml/mlvalues.h>
8330 #include <caml/signals.h>
8332 #include <guestfs.h>
8334 #include \"guestfs_c.h\"
8336 /* Copy a hashtable of string pairs into an assoc-list. We return
8337 * the list in reverse order, but hashtables aren't supposed to be
8340 static CAMLprim value
8341 copy_table (char * const * argv)
8344 CAMLlocal5 (rv, pairv, kv, vv, cons);
8348 for (i = 0; argv[i] != NULL; i += 2) {
8349 kv = caml_copy_string (argv[i]);
8350 vv = caml_copy_string (argv[i+1]);
8351 pairv = caml_alloc (2, 0);
8352 Store_field (pairv, 0, kv);
8353 Store_field (pairv, 1, vv);
8354 cons = caml_alloc (2, 0);
8355 Store_field (cons, 1, rv);
8357 Store_field (cons, 0, pairv);
8365 (* Struct copy functions. *)
8367 let emit_ocaml_copy_list_function typ =
8368 pr "static CAMLprim value\n";
8369 pr "copy_%s_list (const struct guestfs_%s_list *%ss)\n" typ typ typ;
8371 pr " CAMLparam0 ();\n";
8372 pr " CAMLlocal2 (rv, v);\n";
8373 pr " unsigned int i;\n";
8375 pr " if (%ss->len == 0)\n" typ;
8376 pr " CAMLreturn (Atom (0));\n";
8378 pr " rv = caml_alloc (%ss->len, 0);\n" typ;
8379 pr " for (i = 0; i < %ss->len; ++i) {\n" typ;
8380 pr " v = copy_%s (&%ss->val[i]);\n" typ typ;
8381 pr " caml_modify (&Field (rv, i), v);\n";
8383 pr " CAMLreturn (rv);\n";
8391 let has_optpercent_col =
8392 List.exists (function (_, FOptPercent) -> true | _ -> false) cols in
8394 pr "static CAMLprim value\n";
8395 pr "copy_%s (const struct guestfs_%s *%s)\n" typ typ typ;
8397 pr " CAMLparam0 ();\n";
8398 if has_optpercent_col then
8399 pr " CAMLlocal3 (rv, v, v2);\n"
8401 pr " CAMLlocal2 (rv, v);\n";
8403 pr " rv = caml_alloc (%d, 0);\n" (List.length cols);
8408 pr " v = caml_copy_string (%s->%s);\n" typ name
8410 pr " v = caml_alloc_string (%s->%s_len);\n" typ name;
8411 pr " memcpy (String_val (v), %s->%s, %s->%s_len);\n"
8414 pr " v = caml_alloc_string (32);\n";
8415 pr " memcpy (String_val (v), %s->%s, 32);\n" typ name
8416 | name, (FBytes|FInt64|FUInt64) ->
8417 pr " v = caml_copy_int64 (%s->%s);\n" typ name
8418 | name, (FInt32|FUInt32) ->
8419 pr " v = caml_copy_int32 (%s->%s);\n" typ name
8420 | name, FOptPercent ->
8421 pr " if (%s->%s >= 0) { /* Some %s */\n" typ name name;
8422 pr " v2 = caml_copy_double (%s->%s);\n" typ name;
8423 pr " v = caml_alloc (1, 0);\n";
8424 pr " Store_field (v, 0, v2);\n";
8425 pr " } else /* None */\n";
8426 pr " v = Val_int (0);\n";
8428 pr " v = Val_int (%s->%s);\n" typ name
8430 pr " Store_field (rv, %d, v);\n" i
8432 pr " CAMLreturn (rv);\n";
8437 (* Emit a copy_TYPE_list function definition only if that function is used. *)
8440 | typ, (RStructListOnly | RStructAndList) ->
8441 (* generate the function for typ *)
8442 emit_ocaml_copy_list_function typ
8443 | typ, _ -> () (* empty *)
8444 ) (rstructs_used_by all_functions);
8448 fun (name, style, _, _, _, _, _) ->
8449 pr "/* Automatically generated wrapper for function\n";
8451 generate_ocaml_prototype name style;
8456 "gv" :: List.map (fun arg -> name_of_argt arg ^ "v") (snd style) in
8458 let needs_extra_vs =
8459 match fst style with RConstOptString _ -> true | _ -> false in
8461 pr "/* Emit prototype to appease gcc's -Wmissing-prototypes. */\n";
8462 pr "CAMLprim value ocaml_guestfs_%s (value %s" name (List.hd params);
8463 List.iter (pr ", value %s") (List.tl params); pr ");\n";
8466 pr "CAMLprim value\n";
8467 pr "ocaml_guestfs_%s (value %s" name (List.hd params);
8468 List.iter (pr ", value %s") (List.tl params);
8473 | [p1; p2; p3; p4; p5] ->
8474 pr " CAMLparam5 (%s);\n" (String.concat ", " params)
8475 | p1 :: p2 :: p3 :: p4 :: p5 :: rest ->
8476 pr " CAMLparam5 (%s);\n" (String.concat ", " [p1; p2; p3; p4; p5]);
8477 pr " CAMLxparam%d (%s);\n"
8478 (List.length rest) (String.concat ", " rest)
8480 pr " CAMLparam%d (%s);\n" (List.length ps) (String.concat ", " ps)
8482 if not needs_extra_vs then
8483 pr " CAMLlocal1 (rv);\n"
8485 pr " CAMLlocal3 (rv, v, v2);\n";
8488 pr " guestfs_h *g = Guestfs_val (gv);\n";
8489 pr " if (g == NULL)\n";
8490 pr " ocaml_guestfs_raise_closed (\"%s\");\n" name;
8496 | Device n | Dev_or_Path n
8500 pr " const char *%s = String_val (%sv);\n" n n
8502 pr " const char *%s =\n" n;
8503 pr " %sv != Val_int (0) ? String_val (Field (%sv, 0)) : NULL;\n"
8506 pr " const char *%s = String_val (%sv);\n" n n;
8507 pr " size_t %s_size = caml_string_length (%sv);\n" n n
8508 | StringList n | DeviceList n ->
8509 pr " char **%s = ocaml_guestfs_strings_val (g, %sv);\n" n n
8511 pr " int %s = Bool_val (%sv);\n" n n
8513 pr " int %s = Int_val (%sv);\n" n n
8515 pr " int64_t %s = Int64_val (%sv);\n" n n
8518 match fst style with
8519 | RErr -> pr " int r;\n"; "-1"
8520 | RInt _ -> pr " int r;\n"; "-1"
8521 | RInt64 _ -> pr " int64_t r;\n"; "-1"
8522 | RBool _ -> pr " int r;\n"; "-1"
8523 | RConstString _ | RConstOptString _ ->
8524 pr " const char *r;\n"; "NULL"
8525 | RString _ -> pr " char *r;\n"; "NULL"
8530 | RStruct (_, typ) ->
8531 pr " struct guestfs_%s *r;\n" typ; "NULL"
8532 | RStructList (_, typ) ->
8533 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
8540 pr " size_t size;\n";
8544 pr " caml_enter_blocking_section ();\n";
8545 pr " r = guestfs_%s " name;
8546 generate_c_call_args ~handle:"g" style;
8548 pr " caml_leave_blocking_section ();\n";
8552 | StringList n | DeviceList n ->
8553 pr " ocaml_guestfs_free_strings (%s);\n" n;
8554 | Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
8555 | Bool _ | Int _ | Int64 _
8556 | FileIn _ | FileOut _ | BufferIn _ -> ()
8559 pr " if (r == %s)\n" error_code;
8560 pr " ocaml_guestfs_raise_error (g, \"%s\");\n" name;
8563 (match fst style with
8564 | RErr -> pr " rv = Val_unit;\n"
8565 | RInt _ -> pr " rv = Val_int (r);\n"
8567 pr " rv = caml_copy_int64 (r);\n"
8568 | RBool _ -> pr " rv = Val_bool (r);\n"
8570 pr " rv = caml_copy_string (r);\n"
8571 | RConstOptString _ ->
8572 pr " if (r) { /* Some string */\n";
8573 pr " v = caml_alloc (1, 0);\n";
8574 pr " v2 = caml_copy_string (r);\n";
8575 pr " Store_field (v, 0, v2);\n";
8576 pr " } else /* None */\n";
8577 pr " v = Val_int (0);\n";
8579 pr " rv = caml_copy_string (r);\n";
8582 pr " rv = caml_copy_string_array ((const char **) r);\n";
8583 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
8585 | RStruct (_, typ) ->
8586 pr " rv = copy_%s (r);\n" typ;
8587 pr " guestfs_free_%s (r);\n" typ;
8588 | RStructList (_, typ) ->
8589 pr " rv = copy_%s_list (r);\n" typ;
8590 pr " guestfs_free_%s_list (r);\n" typ;
8592 pr " rv = copy_table (r);\n";
8593 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
8596 pr " rv = caml_alloc_string (size);\n";
8597 pr " memcpy (String_val (rv), r, size);\n";
8600 pr " CAMLreturn (rv);\n";
8604 if List.length params > 5 then (
8605 pr "/* Emit prototype to appease gcc's -Wmissing-prototypes. */\n";
8606 pr "CAMLprim value ";
8607 pr "ocaml_guestfs_%s_byte (value *argv, int argn);\n" name;
8608 pr "CAMLprim value\n";
8609 pr "ocaml_guestfs_%s_byte (value *argv, int argn)\n" name;
8611 pr " return ocaml_guestfs_%s (argv[0]" name;
8612 iteri (fun i _ -> pr ", argv[%d]" i) (List.tl params);
8617 ) all_functions_sorted
8619 and generate_ocaml_structure_decls () =
8622 pr "type %s = {\n" typ;
8625 | name, FString -> pr " %s : string;\n" name
8626 | name, FBuffer -> pr " %s : string;\n" name
8627 | name, FUUID -> pr " %s : string;\n" name
8628 | name, (FBytes|FInt64|FUInt64) -> pr " %s : int64;\n" name
8629 | name, (FInt32|FUInt32) -> pr " %s : int32;\n" name
8630 | name, FChar -> pr " %s : char;\n" name
8631 | name, FOptPercent -> pr " %s : float option;\n" name
8637 and generate_ocaml_prototype ?(is_external = false) name style =
8638 if is_external then pr "external " else pr "val ";
8639 pr "%s : t -> " name;
8642 | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _
8643 | BufferIn _ -> pr "string -> "
8644 | OptString _ -> pr "string option -> "
8645 | StringList _ | DeviceList _ -> pr "string array -> "
8646 | Bool _ -> pr "bool -> "
8647 | Int _ -> pr "int -> "
8648 | Int64 _ -> pr "int64 -> "
8650 (match fst style with
8651 | RErr -> pr "unit" (* all errors are turned into exceptions *)
8652 | RInt _ -> pr "int"
8653 | RInt64 _ -> pr "int64"
8654 | RBool _ -> pr "bool"
8655 | RConstString _ -> pr "string"
8656 | RConstOptString _ -> pr "string option"
8657 | RString _ | RBufferOut _ -> pr "string"
8658 | RStringList _ -> pr "string array"
8659 | RStruct (_, typ) -> pr "%s" typ
8660 | RStructList (_, typ) -> pr "%s array" typ
8661 | RHashtable _ -> pr "(string * string) list"
8663 if is_external then (
8665 if List.length (snd style) + 1 > 5 then
8666 pr "\"ocaml_guestfs_%s_byte\" " name;
8667 pr "\"ocaml_guestfs_%s\"" name
8671 (* Generate Perl xs code, a sort of crazy variation of C with macros. *)
8672 and generate_perl_xs () =
8673 generate_header CStyle LGPLv2plus;
8676 #include \"EXTERN.h\"
8680 #include <guestfs.h>
8683 #define PRId64 \"lld\"
8687 my_newSVll(long long val) {
8688 #ifdef USE_64_BIT_ALL
8689 return newSViv(val);
8693 len = snprintf(buf, 100, \"%%\" PRId64, val);
8694 return newSVpv(buf, len);
8699 #define PRIu64 \"llu\"
8703 my_newSVull(unsigned long long val) {
8704 #ifdef USE_64_BIT_ALL
8705 return newSVuv(val);
8709 len = snprintf(buf, 100, \"%%\" PRIu64, val);
8710 return newSVpv(buf, len);
8714 /* http://www.perlmonks.org/?node_id=680842 */
8716 XS_unpack_charPtrPtr (SV *arg) {
8721 if (!arg || !SvOK (arg) || !SvROK (arg) || SvTYPE (SvRV (arg)) != SVt_PVAV)
8722 croak (\"array reference expected\");
8724 av = (AV *)SvRV (arg);
8725 ret = malloc ((av_len (av) + 1 + 1) * sizeof (char *));
8727 croak (\"malloc failed\");
8729 for (i = 0; i <= av_len (av); i++) {
8730 SV **elem = av_fetch (av, i, 0);
8732 if (!elem || !*elem)
8733 croak (\"missing element in list\");
8735 ret[i] = SvPV_nolen (*elem);
8743 MODULE = Sys::Guestfs PACKAGE = Sys::Guestfs
8750 RETVAL = guestfs_create ();
8752 croak (\"could not create guestfs handle\");
8753 guestfs_set_error_handler (RETVAL, NULL, NULL);
8766 fun (name, style, _, _, _, _, _) ->
8767 (match fst style with
8768 | RErr -> pr "void\n"
8769 | RInt _ -> pr "SV *\n"
8770 | RInt64 _ -> pr "SV *\n"
8771 | RBool _ -> pr "SV *\n"
8772 | RConstString _ -> pr "SV *\n"
8773 | RConstOptString _ -> pr "SV *\n"
8774 | RString _ -> pr "SV *\n"
8775 | RBufferOut _ -> pr "SV *\n"
8777 | RStruct _ | RStructList _
8779 pr "void\n" (* all lists returned implictly on the stack *)
8781 (* Call and arguments. *)
8784 fun arg -> pr ", %s" (name_of_argt arg)
8787 pr " guestfs_h *g;\n";
8791 | Pathname n | Device n | Dev_or_Path n | String n
8792 | FileIn n | FileOut n ->
8795 pr " char *%s;\n" n;
8796 pr " size_t %s_size = SvCUR (ST(%d));\n" n (i+1)
8798 (* http://www.perlmonks.org/?node_id=554277
8799 * Note that the implicit handle argument means we have
8800 * to add 1 to the ST(x) operator.
8802 pr " char *%s = SvOK(ST(%d)) ? SvPV_nolen(ST(%d)) : NULL;\n" n (i+1) (i+1)
8803 | StringList n | DeviceList n -> pr " char **%s;\n" n
8804 | Bool n -> pr " int %s;\n" n
8805 | Int n -> pr " int %s;\n" n
8806 | Int64 n -> pr " int64_t %s;\n" n
8809 let do_cleanups () =
8812 | Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
8813 | Bool _ | Int _ | Int64 _
8814 | FileIn _ | FileOut _
8816 | StringList n | DeviceList n -> pr " free (%s);\n" n
8821 (match fst style with
8826 pr " r = guestfs_%s " name;
8827 generate_c_call_args ~handle:"g" style;
8830 pr " if (r == -1)\n";
8831 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8837 pr " %s = guestfs_%s " n name;
8838 generate_c_call_args ~handle:"g" style;
8841 pr " if (%s == -1)\n" n;
8842 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8843 pr " RETVAL = newSViv (%s);\n" n;
8848 pr " int64_t %s;\n" n;
8850 pr " %s = guestfs_%s " n name;
8851 generate_c_call_args ~handle:"g" style;
8854 pr " if (%s == -1)\n" n;
8855 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8856 pr " RETVAL = my_newSVll (%s);\n" n;
8861 pr " const char *%s;\n" n;
8863 pr " %s = guestfs_%s " n name;
8864 generate_c_call_args ~handle:"g" style;
8867 pr " if (%s == NULL)\n" n;
8868 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8869 pr " RETVAL = newSVpv (%s, 0);\n" n;
8872 | RConstOptString n ->
8874 pr " const char *%s;\n" n;
8876 pr " %s = guestfs_%s " n name;
8877 generate_c_call_args ~handle:"g" style;
8880 pr " if (%s == NULL)\n" n;
8881 pr " RETVAL = &PL_sv_undef;\n";
8883 pr " RETVAL = newSVpv (%s, 0);\n" n;
8888 pr " char *%s;\n" n;
8890 pr " %s = guestfs_%s " n name;
8891 generate_c_call_args ~handle:"g" style;
8894 pr " if (%s == NULL)\n" n;
8895 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8896 pr " RETVAL = newSVpv (%s, 0);\n" n;
8897 pr " free (%s);\n" n;
8900 | RStringList n | RHashtable n ->
8902 pr " char **%s;\n" n;
8905 pr " %s = guestfs_%s " n name;
8906 generate_c_call_args ~handle:"g" style;
8909 pr " if (%s == NULL)\n" n;
8910 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8911 pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
8912 pr " EXTEND (SP, n);\n";
8913 pr " for (i = 0; i < n; ++i) {\n";
8914 pr " PUSHs (sv_2mortal (newSVpv (%s[i], 0)));\n" n;
8915 pr " free (%s[i]);\n" n;
8917 pr " free (%s);\n" n;
8918 | RStruct (n, typ) ->
8919 let cols = cols_of_struct typ in
8920 generate_perl_struct_code typ cols name style n do_cleanups
8921 | RStructList (n, typ) ->
8922 let cols = cols_of_struct typ in
8923 generate_perl_struct_list_code typ cols name style n do_cleanups
8926 pr " char *%s;\n" n;
8927 pr " size_t size;\n";
8929 pr " %s = guestfs_%s " n name;
8930 generate_c_call_args ~handle:"g" style;
8933 pr " if (%s == NULL)\n" n;
8934 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8935 pr " RETVAL = newSVpvn (%s, size);\n" n;
8936 pr " free (%s);\n" n;
8944 and generate_perl_struct_list_code typ cols name style n do_cleanups =
8946 pr " struct guestfs_%s_list *%s;\n" typ n;
8950 pr " %s = guestfs_%s " n name;
8951 generate_c_call_args ~handle:"g" style;
8954 pr " if (%s == NULL)\n" n;
8955 pr " croak (\"%%s\", guestfs_last_error (g));\n";
8956 pr " EXTEND (SP, %s->len);\n" n;
8957 pr " for (i = 0; i < %s->len; ++i) {\n" n;
8958 pr " hv = newHV ();\n";
8962 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 0), 0);\n"
8963 name (String.length name) n name
8965 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
8966 name (String.length name) n name
8968 pr " (void) hv_store (hv, \"%s\", %d, newSVpvn (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
8969 name (String.length name) n name n name
8970 | name, (FBytes|FUInt64) ->
8971 pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
8972 name (String.length name) n name
8974 pr " (void) hv_store (hv, \"%s\", %d, my_newSVll (%s->val[i].%s), 0);\n"
8975 name (String.length name) n name
8976 | name, (FInt32|FUInt32) ->
8977 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
8978 name (String.length name) n name
8980 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (&%s->val[i].%s, 1), 0);\n"
8981 name (String.length name) n name
8982 | name, FOptPercent ->
8983 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
8984 name (String.length name) n name
8986 pr " PUSHs (sv_2mortal (newRV ((SV *) hv)));\n";
8988 pr " guestfs_free_%s_list (%s);\n" typ n
8990 and generate_perl_struct_code typ cols name style n do_cleanups =
8992 pr " struct guestfs_%s *%s;\n" typ n;
8994 pr " %s = guestfs_%s " n name;
8995 generate_c_call_args ~handle:"g" style;
8998 pr " if (%s == NULL)\n" n;
8999 pr " croak (\"%%s\", guestfs_last_error (g));\n";
9000 pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
9002 fun ((name, _) as col) ->
9003 pr " PUSHs (sv_2mortal (newSVpv (\"%s\", 0)));\n" name;
9007 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
9010 pr " PUSHs (sv_2mortal (newSVpvn (%s->%s, %s->%s_len)));\n"
9013 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
9015 | name, (FBytes|FUInt64) ->
9016 pr " PUSHs (sv_2mortal (my_newSVull (%s->%s)));\n"
9019 pr " PUSHs (sv_2mortal (my_newSVll (%s->%s)));\n"
9021 | name, (FInt32|FUInt32) ->
9022 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
9025 pr " PUSHs (sv_2mortal (newSVpv (&%s->%s, 1)));\n"
9027 | name, FOptPercent ->
9028 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
9031 pr " free (%s);\n" n
9033 (* Generate Sys/Guestfs.pm. *)
9034 and generate_perl_pm () =
9035 generate_header HashStyle LGPLv2plus;
9042 Sys::Guestfs - Perl bindings for libguestfs
9048 my $h = Sys::Guestfs->new ();
9049 $h->add_drive ('guest.img');
9051 $h->mount ('/dev/sda1', '/');
9052 $h->touch ('/hello');
9057 The C<Sys::Guestfs> module provides a Perl XS binding to the
9058 libguestfs API for examining and modifying virtual machine
9061 Amongst the things this is good for: making batch configuration
9062 changes to guests, getting disk used/free statistics (see also:
9063 virt-df), migrating between virtualization systems (see also:
9064 virt-p2v), performing partial backups, performing partial guest
9065 clones, cloning guests and changing registry/UUID/hostname info, and
9068 Libguestfs uses Linux kernel and qemu code, and can access any type of
9069 guest filesystem that Linux and qemu can, including but not limited
9070 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
9071 schemes, qcow, qcow2, vmdk.
9073 Libguestfs provides ways to enumerate guest storage (eg. partitions,
9074 LVs, what filesystem is in each LV, etc.). It can also run commands
9075 in the context of the guest. Also you can access filesystems over
9078 See also L<Sys::Guestfs::Lib(3)> for a set of useful library
9079 functions for using libguestfs from Perl, including integration
9084 All errors turn into calls to C<croak> (see L<Carp(3)>).
9092 package Sys::Guestfs;
9097 # This version number changes whenever a new function
9098 # is added to the libguestfs API. It is not directly
9099 # related to the libguestfs version number.
9100 use vars qw($VERSION);
9104 XSLoader::load ('Sys::Guestfs');
9106 =item $h = Sys::Guestfs->new ();
9108 Create a new guestfs handle.
9114 my $class = ref ($proto) || $proto;
9116 my $self = Sys::Guestfs::_create ();
9117 bless $self, $class;
9123 (* Actions. We only need to print documentation for these as
9124 * they are pulled in from the XS code automatically.
9127 fun (name, style, _, flags, _, _, longdesc) ->
9128 if not (List.mem NotInDocs flags) then (
9129 let longdesc = replace_str longdesc "C<guestfs_" "C<$h-E<gt>" in
9131 generate_perl_prototype name style;
9133 pr "%s\n\n" longdesc;
9134 if List.mem ProtocolLimitWarning flags then
9135 pr "%s\n\n" protocol_limit_warning;
9136 if List.mem DangerWillRobinson flags then
9137 pr "%s\n\n" danger_will_robinson;
9138 match deprecation_notice flags with
9140 | Some txt -> pr "%s\n\n" txt
9142 ) all_functions_sorted;
9154 Copyright (C) %s Red Hat Inc.
9158 Please see the file COPYING.LIB for the full license.
9164 L<http://libguestfs.org>,
9165 L<Sys::Guestfs::Lib(3)>.
9170 and generate_perl_prototype name style =
9171 (match fst style with
9179 | RBufferOut n -> pr "$%s = " n
9181 | RHashtable n -> pr "%%%s = " n
9183 | RStructList (n,_) -> pr "@%s = " n
9186 let comma = ref false in
9189 if !comma then pr ", ";
9192 | Pathname n | Device n | Dev_or_Path n | String n
9193 | OptString n | Bool n | Int n | Int64 n | FileIn n | FileOut n
9196 | StringList n | DeviceList n ->
9201 (* Generate Python C module. *)
9202 and generate_python_c () =
9203 generate_header CStyle LGPLv2plus;
9206 #define PY_SSIZE_T_CLEAN 1
9209 #if PY_VERSION_HEX < 0x02050000
9210 typedef int Py_ssize_t;
9211 #define PY_SSIZE_T_MAX INT_MAX
9212 #define PY_SSIZE_T_MIN INT_MIN
9219 #include \"guestfs.h\"
9227 get_handle (PyObject *obj)
9230 assert (obj != Py_None);
9231 return ((Pyguestfs_Object *) obj)->g;
9235 put_handle (guestfs_h *g)
9239 PyCObject_FromVoidPtrAndDesc ((void *) g, (char *) \"guestfs_h\", NULL);
9242 /* This list should be freed (but not the strings) after use. */
9244 get_string_list (PyObject *obj)
9251 if (!PyList_Check (obj)) {
9252 PyErr_SetString (PyExc_RuntimeError, \"expecting a list parameter\");
9256 len = PyList_Size (obj);
9257 r = malloc (sizeof (char *) * (len+1));
9259 PyErr_SetString (PyExc_RuntimeError, \"get_string_list: out of memory\");
9263 for (i = 0; i < len; ++i)
9264 r[i] = PyString_AsString (PyList_GetItem (obj, i));
9271 put_string_list (char * const * const argv)
9276 for (argc = 0; argv[argc] != NULL; ++argc)
9279 list = PyList_New (argc);
9280 for (i = 0; i < argc; ++i)
9281 PyList_SetItem (list, i, PyString_FromString (argv[i]));
9287 put_table (char * const * const argv)
9289 PyObject *list, *item;
9292 for (argc = 0; argv[argc] != NULL; ++argc)
9295 list = PyList_New (argc >> 1);
9296 for (i = 0; i < argc; i += 2) {
9297 item = PyTuple_New (2);
9298 PyTuple_SetItem (item, 0, PyString_FromString (argv[i]));
9299 PyTuple_SetItem (item, 1, PyString_FromString (argv[i+1]));
9300 PyList_SetItem (list, i >> 1, item);
9307 free_strings (char **argv)
9311 for (argc = 0; argv[argc] != NULL; ++argc)
9317 py_guestfs_create (PyObject *self, PyObject *args)
9321 g = guestfs_create ();
9323 PyErr_SetString (PyExc_RuntimeError,
9324 \"guestfs.create: failed to allocate handle\");
9327 guestfs_set_error_handler (g, NULL, NULL);
9328 return put_handle (g);
9332 py_guestfs_close (PyObject *self, PyObject *args)
9337 if (!PyArg_ParseTuple (args, (char *) \"O:guestfs_close\", &py_g))
9339 g = get_handle (py_g);
9343 Py_INCREF (Py_None);
9349 let emit_put_list_function typ =
9350 pr "static PyObject *\n";
9351 pr "put_%s_list (struct guestfs_%s_list *%ss)\n" typ typ typ;
9353 pr " PyObject *list;\n";
9356 pr " list = PyList_New (%ss->len);\n" typ;
9357 pr " for (i = 0; i < %ss->len; ++i)\n" typ;
9358 pr " PyList_SetItem (list, i, put_%s (&%ss->val[i]));\n" typ typ;
9359 pr " return list;\n";
9364 (* Structures, turned into Python dictionaries. *)
9367 pr "static PyObject *\n";
9368 pr "put_%s (struct guestfs_%s *%s)\n" typ typ typ;
9370 pr " PyObject *dict;\n";
9372 pr " dict = PyDict_New ();\n";
9376 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9377 pr " PyString_FromString (%s->%s));\n"
9380 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9381 pr " PyString_FromStringAndSize (%s->%s, %s->%s_len));\n"
9384 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9385 pr " PyString_FromStringAndSize (%s->%s, 32));\n"
9387 | name, (FBytes|FUInt64) ->
9388 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9389 pr " PyLong_FromUnsignedLongLong (%s->%s));\n"
9392 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9393 pr " PyLong_FromLongLong (%s->%s));\n"
9396 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9397 pr " PyLong_FromUnsignedLong (%s->%s));\n"
9400 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9401 pr " PyLong_FromLong (%s->%s));\n"
9403 | name, FOptPercent ->
9404 pr " if (%s->%s >= 0)\n" typ name;
9405 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9406 pr " PyFloat_FromDouble ((double) %s->%s));\n"
9409 pr " Py_INCREF (Py_None);\n";
9410 pr " PyDict_SetItemString (dict, \"%s\", Py_None);\n" name;
9413 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
9414 pr " PyString_FromStringAndSize (&dirent->%s, 1));\n" name
9416 pr " return dict;\n";
9422 (* Emit a put_TYPE_list function definition only if that function is used. *)
9425 | typ, (RStructListOnly | RStructAndList) ->
9426 (* generate the function for typ *)
9427 emit_put_list_function typ
9428 | typ, _ -> () (* empty *)
9429 ) (rstructs_used_by all_functions);
9431 (* Python wrapper functions. *)
9433 fun (name, style, _, _, _, _, _) ->
9434 pr "static PyObject *\n";
9435 pr "py_guestfs_%s (PyObject *self, PyObject *args)\n" name;
9438 pr " PyObject *py_g;\n";
9439 pr " guestfs_h *g;\n";
9440 pr " PyObject *py_r;\n";
9443 match fst style with
9444 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
9445 | RInt64 _ -> pr " int64_t r;\n"; "-1"
9446 | RConstString _ | RConstOptString _ ->
9447 pr " const char *r;\n"; "NULL"
9448 | RString _ -> pr " char *r;\n"; "NULL"
9449 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
9450 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
9451 | RStructList (_, typ) ->
9452 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
9455 pr " size_t size;\n";
9460 | Pathname n | Device n | Dev_or_Path n | String n
9461 | FileIn n | FileOut n ->
9462 pr " const char *%s;\n" n
9463 | OptString n -> pr " const char *%s;\n" n
9465 pr " const char *%s;\n" n;
9466 pr " Py_ssize_t %s_size;\n" n
9467 | StringList n | DeviceList n ->
9468 pr " PyObject *py_%s;\n" n;
9469 pr " char **%s;\n" n
9470 | Bool n -> pr " int %s;\n" n
9471 | Int n -> pr " int %s;\n" n
9472 | Int64 n -> pr " long long %s;\n" n
9477 (* Convert the parameters. *)
9478 pr " if (!PyArg_ParseTuple (args, (char *) \"O";
9481 | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _ -> pr "s"
9482 | OptString _ -> pr "z"
9483 | StringList _ | DeviceList _ -> pr "O"
9484 | Bool _ -> pr "i" (* XXX Python has booleans? *)
9486 | Int64 _ -> pr "L" (* XXX Whoever thought it was a good idea to
9487 * emulate C's int/long/long long in Python?
9489 | BufferIn _ -> pr "s#"
9491 pr ":guestfs_%s\",\n" name;
9495 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n -> pr ", &%s" n
9496 | OptString n -> pr ", &%s" n
9497 | StringList n | DeviceList n -> pr ", &py_%s" n
9498 | Bool n -> pr ", &%s" n
9499 | Int n -> pr ", &%s" n
9500 | Int64 n -> pr ", &%s" n
9501 | BufferIn n -> pr ", &%s, &%s_size" n n
9505 pr " return NULL;\n";
9507 pr " g = get_handle (py_g);\n";
9510 | Pathname _ | Device _ | Dev_or_Path _ | String _
9511 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
9513 | StringList n | DeviceList n ->
9514 pr " %s = get_string_list (py_%s);\n" n n;
9515 pr " if (!%s) return NULL;\n" n
9520 pr " r = guestfs_%s " name;
9521 generate_c_call_args ~handle:"g" style;
9526 | Pathname _ | Device _ | Dev_or_Path _ | String _
9527 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
9529 | StringList n | DeviceList n ->
9530 pr " free (%s);\n" n
9533 pr " if (r == %s) {\n" error_code;
9534 pr " PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));\n";
9535 pr " return NULL;\n";
9539 (match fst style with
9541 pr " Py_INCREF (Py_None);\n";
9542 pr " py_r = Py_None;\n"
9544 | RBool _ -> pr " py_r = PyInt_FromLong ((long) r);\n"
9545 | RInt64 _ -> pr " py_r = PyLong_FromLongLong (r);\n"
9546 | RConstString _ -> pr " py_r = PyString_FromString (r);\n"
9547 | RConstOptString _ ->
9549 pr " py_r = PyString_FromString (r);\n";
9551 pr " Py_INCREF (Py_None);\n";
9552 pr " py_r = Py_None;\n";
9555 pr " py_r = PyString_FromString (r);\n";
9558 pr " py_r = put_string_list (r);\n";
9559 pr " free_strings (r);\n"
9560 | RStruct (_, typ) ->
9561 pr " py_r = put_%s (r);\n" typ;
9562 pr " guestfs_free_%s (r);\n" typ
9563 | RStructList (_, typ) ->
9564 pr " py_r = put_%s_list (r);\n" typ;
9565 pr " guestfs_free_%s_list (r);\n" typ
9567 pr " py_r = put_table (r);\n";
9568 pr " free_strings (r);\n"
9570 pr " py_r = PyString_FromStringAndSize (r, size);\n";
9574 pr " return py_r;\n";
9579 (* Table of functions. *)
9580 pr "static PyMethodDef methods[] = {\n";
9581 pr " { (char *) \"create\", py_guestfs_create, METH_VARARGS, NULL },\n";
9582 pr " { (char *) \"close\", py_guestfs_close, METH_VARARGS, NULL },\n";
9584 fun (name, _, _, _, _, _, _) ->
9585 pr " { (char *) \"%s\", py_guestfs_%s, METH_VARARGS, NULL },\n"
9588 pr " { NULL, NULL, 0, NULL }\n";
9592 (* Init function. *)
9595 initlibguestfsmod (void)
9597 static int initialized = 0;
9599 if (initialized) return;
9600 Py_InitModule ((char *) \"libguestfsmod\", methods);
9605 (* Generate Python module. *)
9606 and generate_python_py () =
9607 generate_header HashStyle LGPLv2plus;
9610 u\"\"\"Python bindings for libguestfs
9613 g = guestfs.GuestFS ()
9614 g.add_drive (\"guest.img\")
9616 parts = g.list_partitions ()
9618 The guestfs module provides a Python binding to the libguestfs API
9619 for examining and modifying virtual machine disk images.
9621 Amongst the things this is good for: making batch configuration
9622 changes to guests, getting disk used/free statistics (see also:
9623 virt-df), migrating between virtualization systems (see also:
9624 virt-p2v), performing partial backups, performing partial guest
9625 clones, cloning guests and changing registry/UUID/hostname info, and
9628 Libguestfs uses Linux kernel and qemu code, and can access any type of
9629 guest filesystem that Linux and qemu can, including but not limited
9630 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
9631 schemes, qcow, qcow2, vmdk.
9633 Libguestfs provides ways to enumerate guest storage (eg. partitions,
9634 LVs, what filesystem is in each LV, etc.). It can also run commands
9635 in the context of the guest. Also you can access filesystems over
9638 Errors which happen while using the API are turned into Python
9639 RuntimeError exceptions.
9641 To create a guestfs handle you usually have to perform the following
9644 # Create the handle, call add_drive at least once, and possibly
9645 # several times if the guest has multiple block devices:
9646 g = guestfs.GuestFS ()
9647 g.add_drive (\"guest.img\")
9649 # Launch the qemu subprocess and wait for it to become ready:
9652 # Now you can issue commands, for example:
9657 import libguestfsmod
9660 \"\"\"Instances of this class are libguestfs API handles.\"\"\"
9662 def __init__ (self):
9663 \"\"\"Create a new libguestfs handle.\"\"\"
9664 self._o = libguestfsmod.create ()
9667 libguestfsmod.close (self._o)
9672 fun (name, style, _, flags, _, _, longdesc) ->
9674 generate_py_call_args ~handle:"self" (snd style);
9677 if not (List.mem NotInDocs flags) then (
9678 let doc = replace_str longdesc "C<guestfs_" "C<g." in
9680 match fst style with
9681 | RErr | RInt _ | RInt64 _ | RBool _
9682 | RConstOptString _ | RConstString _
9683 | RString _ | RBufferOut _ -> doc
9685 doc ^ "\n\nThis function returns a list of strings."
9686 | RStruct (_, typ) ->
9687 doc ^ sprintf "\n\nThis function returns a dictionary, with keys matching the various fields in the guestfs_%s structure." typ
9688 | RStructList (_, typ) ->
9689 doc ^ sprintf "\n\nThis function returns a list of %ss. Each %s is represented as a dictionary." typ typ
9691 doc ^ "\n\nThis function returns a dictionary." in
9693 if List.mem ProtocolLimitWarning flags then
9694 doc ^ "\n\n" ^ protocol_limit_warning
9697 if List.mem DangerWillRobinson flags then
9698 doc ^ "\n\n" ^ danger_will_robinson
9701 match deprecation_notice flags with
9703 | Some txt -> doc ^ "\n\n" ^ txt in
9704 let doc = pod2text ~width:60 name doc in
9705 let doc = List.map (fun line -> replace_str line "\\" "\\\\") doc in
9706 let doc = String.concat "\n " doc in
9707 pr " u\"\"\"%s\"\"\"\n" doc;
9709 pr " return libguestfsmod.%s " name;
9710 generate_py_call_args ~handle:"self._o" (snd style);
9715 (* Generate Python call arguments, eg "(handle, foo, bar)" *)
9716 and generate_py_call_args ~handle args =
9718 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
9721 (* Useful if you need the longdesc POD text as plain text. Returns a
9724 * Because this is very slow (the slowest part of autogeneration),
9725 * we memoize the results.
9727 and pod2text ~width name longdesc =
9728 let key = width, name, longdesc in
9729 try Hashtbl.find pod2text_memo key
9731 let filename, chan = Filename.open_temp_file "gen" ".tmp" in
9732 fprintf chan "=head1 %s\n\n%s\n" name longdesc;
9734 let cmd = sprintf "pod2text -w %d %s" width (Filename.quote filename) in
9735 let chan = open_process_in cmd in
9736 let lines = ref [] in
9738 let line = input_line chan in
9739 if i = 1 then (* discard the first line of output *)
9742 let line = triml line in
9743 lines := line :: !lines;
9746 let lines = try loop 1 with End_of_file -> List.rev !lines in
9748 (match close_process_in chan with
9751 failwithf "pod2text: process exited with non-zero status (%d)" i
9752 | WSIGNALED i | WSTOPPED i ->
9753 failwithf "pod2text: process signalled or stopped by signal %d" i
9755 Hashtbl.add pod2text_memo key lines;
9756 pod2text_memo_updated ();
9759 (* Generate ruby bindings. *)
9760 and generate_ruby_c () =
9761 generate_header CStyle LGPLv2plus;
9769 #include \"guestfs.h\"
9771 #include \"extconf.h\"
9773 /* For Ruby < 1.9 */
9775 #define RARRAY_LEN(r) (RARRAY((r))->len)
9778 static VALUE m_guestfs; /* guestfs module */
9779 static VALUE c_guestfs; /* guestfs_h handle */
9780 static VALUE e_Error; /* used for all errors */
9782 static void ruby_guestfs_free (void *p)
9785 guestfs_close ((guestfs_h *) p);
9788 static VALUE ruby_guestfs_create (VALUE m)
9792 g = guestfs_create ();
9794 rb_raise (e_Error, \"failed to create guestfs handle\");
9796 /* Don't print error messages to stderr by default. */
9797 guestfs_set_error_handler (g, NULL, NULL);
9799 /* Wrap it, and make sure the close function is called when the
9802 return Data_Wrap_Struct (c_guestfs, NULL, ruby_guestfs_free, g);
9805 static VALUE ruby_guestfs_close (VALUE gv)
9808 Data_Get_Struct (gv, guestfs_h, g);
9810 ruby_guestfs_free (g);
9811 DATA_PTR (gv) = NULL;
9819 fun (name, style, _, _, _, _, _) ->
9820 pr "static VALUE ruby_guestfs_%s (VALUE gv" name;
9821 List.iter (fun arg -> pr ", VALUE %sv" (name_of_argt arg)) (snd style);
9824 pr " guestfs_h *g;\n";
9825 pr " Data_Get_Struct (gv, guestfs_h, g);\n";
9827 pr " rb_raise (rb_eArgError, \"%%s: used handle after closing it\", \"%s\");\n"
9833 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
9834 pr " Check_Type (%sv, T_STRING);\n" n;
9835 pr " const char *%s = StringValueCStr (%sv);\n" n n;
9837 pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
9838 pr " \"%s\", \"%s\");\n" n name
9840 pr " Check_Type (%sv, T_STRING);\n" n;
9841 pr " const char *%s = RSTRING (%sv)->ptr;\n" n n;
9843 pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
9844 pr " \"%s\", \"%s\");\n" n name;
9845 pr " size_t %s_size = RSTRING (%sv)->len;\n" n n
9847 pr " const char *%s = !NIL_P (%sv) ? StringValueCStr (%sv) : NULL;\n" n n n
9848 | StringList n | DeviceList n ->
9849 pr " char **%s;\n" n;
9850 pr " Check_Type (%sv, T_ARRAY);\n" n;
9852 pr " int i, len;\n";
9853 pr " len = RARRAY_LEN (%sv);\n" n;
9854 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (len+1));\n"
9856 pr " for (i = 0; i < len; ++i) {\n";
9857 pr " VALUE v = rb_ary_entry (%sv, i);\n" n;
9858 pr " %s[i] = StringValueCStr (v);\n" n;
9860 pr " %s[len] = NULL;\n" n;
9863 pr " int %s = RTEST (%sv);\n" n n
9865 pr " int %s = NUM2INT (%sv);\n" n n
9867 pr " long long %s = NUM2LL (%sv);\n" n n
9872 match fst style with
9873 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
9874 | RInt64 _ -> pr " int64_t r;\n"; "-1"
9875 | RConstString _ | RConstOptString _ ->
9876 pr " const char *r;\n"; "NULL"
9877 | RString _ -> pr " char *r;\n"; "NULL"
9878 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
9879 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
9880 | RStructList (_, typ) ->
9881 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
9884 pr " size_t size;\n";
9888 pr " r = guestfs_%s " name;
9889 generate_c_call_args ~handle:"g" style;
9894 | Pathname _ | Device _ | Dev_or_Path _ | String _
9895 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
9897 | StringList n | DeviceList n ->
9898 pr " free (%s);\n" n
9901 pr " if (r == %s)\n" error_code;
9902 pr " rb_raise (e_Error, \"%%s\", guestfs_last_error (g));\n";
9905 (match fst style with
9907 pr " return Qnil;\n"
9908 | RInt _ | RBool _ ->
9909 pr " return INT2NUM (r);\n"
9911 pr " return ULL2NUM (r);\n"
9913 pr " return rb_str_new2 (r);\n";
9914 | RConstOptString _ ->
9916 pr " return rb_str_new2 (r);\n";
9918 pr " return Qnil;\n";
9920 pr " VALUE rv = rb_str_new2 (r);\n";
9924 pr " int i, len = 0;\n";
9925 pr " for (i = 0; r[i] != NULL; ++i) len++;\n";
9926 pr " VALUE rv = rb_ary_new2 (len);\n";
9927 pr " for (i = 0; r[i] != NULL; ++i) {\n";
9928 pr " rb_ary_push (rv, rb_str_new2 (r[i]));\n";
9929 pr " free (r[i]);\n";
9933 | RStruct (_, typ) ->
9934 let cols = cols_of_struct typ in
9935 generate_ruby_struct_code typ cols
9936 | RStructList (_, typ) ->
9937 let cols = cols_of_struct typ in
9938 generate_ruby_struct_list_code typ cols
9940 pr " VALUE rv = rb_hash_new ();\n";
9942 pr " for (i = 0; r[i] != NULL; i+=2) {\n";
9943 pr " rb_hash_aset (rv, rb_str_new2 (r[i]), rb_str_new2 (r[i+1]));\n";
9944 pr " free (r[i]);\n";
9945 pr " free (r[i+1]);\n";
9950 pr " VALUE rv = rb_str_new (r, size);\n";
9960 /* Initialize the module. */
9961 void Init__guestfs ()
9963 m_guestfs = rb_define_module (\"Guestfs\");
9964 c_guestfs = rb_define_class_under (m_guestfs, \"Guestfs\", rb_cObject);
9965 e_Error = rb_define_class_under (m_guestfs, \"Error\", rb_eStandardError);
9967 rb_define_module_function (m_guestfs, \"create\", ruby_guestfs_create, 0);
9968 rb_define_method (c_guestfs, \"close\", ruby_guestfs_close, 0);
9971 (* Define the rest of the methods. *)
9973 fun (name, style, _, _, _, _, _) ->
9974 pr " rb_define_method (c_guestfs, \"%s\",\n" name;
9975 pr " ruby_guestfs_%s, %d);\n" name (List.length (snd style))
9980 (* Ruby code to return a struct. *)
9981 and generate_ruby_struct_code typ cols =
9982 pr " VALUE rv = rb_hash_new ();\n";
9986 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new2 (r->%s));\n" name name
9988 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, r->%s_len));\n" name name name
9990 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, 32));\n" name name
9991 | name, (FBytes|FUInt64) ->
9992 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
9994 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), LL2NUM (r->%s));\n" name name
9996 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), UINT2NUM (r->%s));\n" name name
9998 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), INT2NUM (r->%s));\n" name name
9999 | name, FOptPercent ->
10000 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_dbl2big (r->%s));\n" name name
10001 | name, FChar -> (* XXX wrong? *)
10002 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
10004 pr " guestfs_free_%s (r);\n" typ;
10007 (* Ruby code to return a struct list. *)
10008 and generate_ruby_struct_list_code typ cols =
10009 pr " VALUE rv = rb_ary_new2 (r->len);\n";
10011 pr " for (i = 0; i < r->len; ++i) {\n";
10012 pr " VALUE hv = rb_hash_new ();\n";
10016 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new2 (r->val[i].%s));\n" name name
10018 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, r->val[i].%s_len));\n" name name name
10020 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, 32));\n" name name
10021 | name, (FBytes|FUInt64) ->
10022 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
10024 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), LL2NUM (r->val[i].%s));\n" name name
10026 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), UINT2NUM (r->val[i].%s));\n" name name
10028 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), INT2NUM (r->val[i].%s));\n" name name
10029 | name, FOptPercent ->
10030 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_dbl2big (r->val[i].%s));\n" name name
10031 | name, FChar -> (* XXX wrong? *)
10032 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
10034 pr " rb_ary_push (rv, hv);\n";
10036 pr " guestfs_free_%s_list (r);\n" typ;
10039 (* Generate Java bindings GuestFS.java file. *)
10040 and generate_java_java () =
10041 generate_header CStyle LGPLv2plus;
10044 package com.redhat.et.libguestfs;
10046 import java.util.HashMap;
10047 import com.redhat.et.libguestfs.LibGuestFSException;
10048 import com.redhat.et.libguestfs.PV;
10049 import com.redhat.et.libguestfs.VG;
10050 import com.redhat.et.libguestfs.LV;
10051 import com.redhat.et.libguestfs.Stat;
10052 import com.redhat.et.libguestfs.StatVFS;
10053 import com.redhat.et.libguestfs.IntBool;
10054 import com.redhat.et.libguestfs.Dirent;
10057 * The GuestFS object is a libguestfs handle.
10061 public class GuestFS {
10062 // Load the native code.
10064 System.loadLibrary (\"guestfs_jni\");
10068 * The native guestfs_h pointer.
10073 * Create a libguestfs handle.
10075 * @throws LibGuestFSException
10077 public GuestFS () throws LibGuestFSException
10081 private native long _create () throws LibGuestFSException;
10084 * Close a libguestfs handle.
10086 * You can also leave handles to be collected by the garbage
10087 * collector, but this method ensures that the resources used
10088 * by the handle are freed up immediately. If you call any
10089 * other methods after closing the handle, you will get an
10092 * @throws LibGuestFSException
10094 public void close () throws LibGuestFSException
10100 private native void _close (long g) throws LibGuestFSException;
10102 public void finalize () throws LibGuestFSException
10110 fun (name, style, _, flags, _, shortdesc, longdesc) ->
10111 if not (List.mem NotInDocs flags); then (
10112 let doc = replace_str longdesc "C<guestfs_" "C<g." in
10114 if List.mem ProtocolLimitWarning flags then
10115 doc ^ "\n\n" ^ protocol_limit_warning
10118 if List.mem DangerWillRobinson flags then
10119 doc ^ "\n\n" ^ danger_will_robinson
10122 match deprecation_notice flags with
10124 | Some txt -> doc ^ "\n\n" ^ txt in
10125 let doc = pod2text ~width:60 name doc in
10126 let doc = List.map ( (* RHBZ#501883 *)
10129 | nonempty -> nonempty
10131 let doc = String.concat "\n * " doc in
10134 pr " * %s\n" shortdesc;
10137 pr " * @throws LibGuestFSException\n";
10141 generate_java_prototype ~public:true ~semicolon:false name style;
10144 pr " if (g == 0)\n";
10145 pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
10148 if fst style <> RErr then pr "return ";
10150 generate_java_call_args ~handle:"g" (snd style);
10154 generate_java_prototype ~privat:true ~native:true name style;
10161 (* Generate Java call arguments, eg "(handle, foo, bar)" *)
10162 and generate_java_call_args ~handle args =
10164 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
10167 and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
10168 ?(semicolon=true) name style =
10169 if privat then pr "private ";
10170 if public then pr "public ";
10171 if native then pr "native ";
10174 (match fst style with
10175 | RErr -> pr "void ";
10176 | RInt _ -> pr "int ";
10177 | RInt64 _ -> pr "long ";
10178 | RBool _ -> pr "boolean ";
10179 | RConstString _ | RConstOptString _ | RString _
10180 | RBufferOut _ -> pr "String ";
10181 | RStringList _ -> pr "String[] ";
10182 | RStruct (_, typ) ->
10183 let name = java_name_of_struct typ in
10185 | RStructList (_, typ) ->
10186 let name = java_name_of_struct typ in
10188 | RHashtable _ -> pr "HashMap<String,String> ";
10191 if native then pr "_%s " name else pr "%s " name;
10193 let needs_comma = ref false in
10196 needs_comma := true
10202 if !needs_comma then pr ", ";
10203 needs_comma := true;
10207 | Device n | Dev_or_Path n
10215 | StringList n | DeviceList n ->
10226 pr " throws LibGuestFSException";
10227 if semicolon then pr ";"
10229 and generate_java_struct jtyp cols () =
10230 generate_header CStyle LGPLv2plus;
10233 package com.redhat.et.libguestfs;
10236 * Libguestfs %s structure.
10248 | name, FBuffer -> pr " public String %s;\n" name
10249 | name, (FBytes|FUInt64|FInt64) -> pr " public long %s;\n" name
10250 | name, (FUInt32|FInt32) -> pr " public int %s;\n" name
10251 | name, FChar -> pr " public char %s;\n" name
10252 | name, FOptPercent ->
10253 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
10254 pr " public float %s;\n" name
10259 and generate_java_c () =
10260 generate_header CStyle LGPLv2plus;
10264 #include <stdlib.h>
10265 #include <string.h>
10267 #include \"com_redhat_et_libguestfs_GuestFS.h\"
10268 #include \"guestfs.h\"
10270 /* Note that this function returns. The exception is not thrown
10271 * until after the wrapper function returns.
10274 throw_exception (JNIEnv *env, const char *msg)
10277 cl = (*env)->FindClass (env,
10278 \"com/redhat/et/libguestfs/LibGuestFSException\");
10279 (*env)->ThrowNew (env, cl, msg);
10282 JNIEXPORT jlong JNICALL
10283 Java_com_redhat_et_libguestfs_GuestFS__1create
10284 (JNIEnv *env, jobject obj)
10288 g = guestfs_create ();
10290 throw_exception (env, \"GuestFS.create: failed to allocate handle\");
10293 guestfs_set_error_handler (g, NULL, NULL);
10294 return (jlong) (long) g;
10297 JNIEXPORT void JNICALL
10298 Java_com_redhat_et_libguestfs_GuestFS__1close
10299 (JNIEnv *env, jobject obj, jlong jg)
10301 guestfs_h *g = (guestfs_h *) (long) jg;
10308 fun (name, style, _, _, _, _, _) ->
10310 (match fst style with
10311 | RErr -> pr "void ";
10312 | RInt _ -> pr "jint ";
10313 | RInt64 _ -> pr "jlong ";
10314 | RBool _ -> pr "jboolean ";
10315 | RConstString _ | RConstOptString _ | RString _
10316 | RBufferOut _ -> pr "jstring ";
10317 | RStruct _ | RHashtable _ ->
10319 | RStringList _ | RStructList _ ->
10320 pr "jobjectArray ";
10323 pr "Java_com_redhat_et_libguestfs_GuestFS_";
10324 pr "%s" (replace_str ("_" ^ name) "_" "_1");
10326 pr " (JNIEnv *env, jobject obj, jlong jg";
10330 | Device n | Dev_or_Path n
10335 pr ", jstring j%s" n
10337 pr ", jbyteArray j%s" n
10338 | StringList n | DeviceList n ->
10339 pr ", jobjectArray j%s" n
10341 pr ", jboolean j%s" n
10349 pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
10350 let error_code, no_ret =
10351 match fst style with
10352 | RErr -> pr " int r;\n"; "-1", ""
10354 | RInt _ -> pr " int r;\n"; "-1", "0"
10355 | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
10356 | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
10357 | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
10359 pr " jstring jr;\n";
10360 pr " char *r;\n"; "NULL", "NULL"
10362 pr " jobjectArray jr;\n";
10363 pr " int r_len;\n";
10364 pr " jclass cl;\n";
10365 pr " jstring jstr;\n";
10366 pr " char **r;\n"; "NULL", "NULL"
10367 | RStruct (_, typ) ->
10368 pr " jobject jr;\n";
10369 pr " jclass cl;\n";
10370 pr " jfieldID fl;\n";
10371 pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
10372 | RStructList (_, typ) ->
10373 pr " jobjectArray jr;\n";
10374 pr " jclass cl;\n";
10375 pr " jfieldID fl;\n";
10376 pr " jobject jfl;\n";
10377 pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
10378 | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
10380 pr " jstring jr;\n";
10382 pr " size_t size;\n";
10387 | Device n | Dev_or_Path n
10392 pr " const char *%s;\n" n
10394 pr " jbyte *%s;\n" n;
10395 pr " size_t %s_size;\n" n
10396 | StringList n | DeviceList n ->
10397 pr " int %s_len;\n" n;
10398 pr " const char **%s;\n" n
10403 pr " int64_t %s;\n" n
10407 (match fst style with
10408 | RStringList _ | RStructList _ -> true
10409 | RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
10410 | RConstOptString _
10411 | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
10412 List.exists (function
10413 | StringList _ -> true
10414 | DeviceList _ -> true
10415 | _ -> false) (snd style) in
10421 (* Get the parameters. *)
10425 | Device n | Dev_or_Path n
10429 pr " %s = (*env)->GetStringUTFChars (env, j%s, NULL);\n" n n
10431 (* This is completely undocumented, but Java null becomes
10432 * a NULL parameter.
10434 pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
10436 pr " %s = (*env)->GetByteArrayElements (env, j%s, NULL);\n" n n;
10437 pr " %s_size = (*env)->GetArrayLength (env, j%s);\n" n n
10438 | StringList n | DeviceList n ->
10439 pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
10440 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (%s_len+1));\n" n n;
10441 pr " for (i = 0; i < %s_len; ++i) {\n" n;
10442 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
10444 pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
10446 pr " %s[%s_len] = NULL;\n" n n;
10450 pr " %s = j%s;\n" n n
10453 (* Make the call. *)
10454 pr " r = guestfs_%s " name;
10455 generate_c_call_args ~handle:"g" style;
10458 (* Release the parameters. *)
10462 | Device n | Dev_or_Path n
10466 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
10468 pr " if (j%s)\n" n;
10469 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
10471 pr " (*env)->ReleaseByteArrayElements (env, j%s, %s, 0);\n" n n
10472 | StringList n | DeviceList n ->
10473 pr " for (i = 0; i < %s_len; ++i) {\n" n;
10474 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
10476 pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
10478 pr " free (%s);\n" n
10484 (* Check for errors. *)
10485 pr " if (r == %s) {\n" error_code;
10486 pr " throw_exception (env, guestfs_last_error (g));\n";
10487 pr " return %s;\n" no_ret;
10490 (* Return value. *)
10491 (match fst style with
10493 | RInt _ -> pr " return (jint) r;\n"
10494 | RBool _ -> pr " return (jboolean) r;\n"
10495 | RInt64 _ -> pr " return (jlong) r;\n"
10496 | RConstString _ -> pr " return (*env)->NewStringUTF (env, r);\n"
10497 | RConstOptString _ ->
10498 pr " return (*env)->NewStringUTF (env, r); /* XXX r NULL? */\n"
10500 pr " jr = (*env)->NewStringUTF (env, r);\n";
10504 pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
10505 pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
10506 pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
10507 pr " jr = (*env)->NewObjectArray (env, r_len, cl, jstr);\n";
10508 pr " for (i = 0; i < r_len; ++i) {\n";
10509 pr " jstr = (*env)->NewStringUTF (env, r[i]);\n";
10510 pr " (*env)->SetObjectArrayElement (env, jr, i, jstr);\n";
10511 pr " free (r[i]);\n";
10515 | RStruct (_, typ) ->
10516 let jtyp = java_name_of_struct typ in
10517 let cols = cols_of_struct typ in
10518 generate_java_struct_return typ jtyp cols
10519 | RStructList (_, typ) ->
10520 let jtyp = java_name_of_struct typ in
10521 let cols = cols_of_struct typ in
10522 generate_java_struct_list_return typ jtyp cols
10525 pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
10526 pr " return NULL;\n"
10528 pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
10537 and generate_java_struct_return typ jtyp cols =
10538 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
10539 pr " jr = (*env)->AllocObject (env, cl);\n";
10543 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10544 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, r->%s));\n" name;
10547 pr " char s[33];\n";
10548 pr " memcpy (s, r->%s, 32);\n" name;
10549 pr " s[32] = 0;\n";
10550 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10551 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
10555 pr " int len = r->%s_len;\n" name;
10556 pr " char s[len+1];\n";
10557 pr " memcpy (s, r->%s, len);\n" name;
10558 pr " s[len] = 0;\n";
10559 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10560 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
10562 | name, (FBytes|FUInt64|FInt64) ->
10563 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
10564 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
10565 | name, (FUInt32|FInt32) ->
10566 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
10567 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
10568 | name, FOptPercent ->
10569 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
10570 pr " (*env)->SetFloatField (env, jr, fl, r->%s);\n" name;
10572 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
10573 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
10578 and generate_java_struct_list_return typ jtyp cols =
10579 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
10580 pr " jr = (*env)->NewObjectArray (env, r->len, cl, NULL);\n";
10581 pr " for (i = 0; i < r->len; ++i) {\n";
10582 pr " jfl = (*env)->AllocObject (env, cl);\n";
10586 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10587 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, r->val[i].%s));\n" name;
10590 pr " char s[33];\n";
10591 pr " memcpy (s, r->val[i].%s, 32);\n" name;
10592 pr " s[32] = 0;\n";
10593 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10594 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
10598 pr " int len = r->val[i].%s_len;\n" name;
10599 pr " char s[len+1];\n";
10600 pr " memcpy (s, r->val[i].%s, len);\n" name;
10601 pr " s[len] = 0;\n";
10602 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
10603 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
10605 | name, (FBytes|FUInt64|FInt64) ->
10606 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
10607 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
10608 | name, (FUInt32|FInt32) ->
10609 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
10610 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
10611 | name, FOptPercent ->
10612 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
10613 pr " (*env)->SetFloatField (env, jfl, fl, r->val[i].%s);\n" name;
10615 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
10616 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
10618 pr " (*env)->SetObjectArrayElement (env, jfl, i, jfl);\n";
10620 pr " guestfs_free_%s_list (r);\n" typ;
10623 and generate_java_makefile_inc () =
10624 generate_header HashStyle GPLv2plus;
10626 pr "java_built_sources = \\\n";
10629 pr "\tcom/redhat/et/libguestfs/%s.java \\\n" jtyp;
10631 pr "\tcom/redhat/et/libguestfs/GuestFS.java\n"
10633 and generate_haskell_hs () =
10634 generate_header HaskellStyle LGPLv2plus;
10636 (* XXX We only know how to generate partial FFI for Haskell
10637 * at the moment. Please help out!
10639 let can_generate style =
10643 | RInt64 _, _ -> true
10645 | RConstString _, _
10646 | RConstOptString _, _
10652 | RBufferOut _, _ -> false in
10655 {-# INCLUDE <guestfs.h> #-}
10656 {-# LANGUAGE ForeignFunctionInterface #-}
10661 (* List out the names of the actions we want to export. *)
10663 fun (name, style, _, _, _, _, _) ->
10664 if can_generate style then pr ",\n %s" name
10670 -- Unfortunately some symbols duplicate ones already present
10671 -- in Prelude. We don't know which, so we hard-code a list
10673 import Prelude hiding (truncate)
10677 import Foreign.C.Types
10679 import Control.Exception
10680 import Data.Typeable
10682 data GuestfsS = GuestfsS -- represents the opaque C struct
10683 type GuestfsP = Ptr GuestfsS -- guestfs_h *
10684 type GuestfsH = ForeignPtr GuestfsS -- guestfs_h * with attached finalizer
10686 -- XXX define properly later XXX
10690 data IntBool = IntBool
10692 data StatVFS = StatVFS
10693 data Hashtable = Hashtable
10695 foreign import ccall unsafe \"guestfs_create\" c_create
10697 foreign import ccall unsafe \"&guestfs_close\" c_close
10698 :: FunPtr (GuestfsP -> IO ())
10699 foreign import ccall unsafe \"guestfs_set_error_handler\" c_set_error_handler
10700 :: GuestfsP -> Ptr CInt -> Ptr CInt -> IO ()
10702 create :: IO GuestfsH
10705 c_set_error_handler p nullPtr nullPtr
10706 h <- newForeignPtr c_close p
10709 foreign import ccall unsafe \"guestfs_last_error\" c_last_error
10710 :: GuestfsP -> IO CString
10712 -- last_error :: GuestfsH -> IO (Maybe String)
10713 -- last_error h = do
10714 -- str <- withForeignPtr h (\\p -> c_last_error p)
10715 -- maybePeek peekCString str
10717 last_error :: GuestfsH -> IO (String)
10719 str <- withForeignPtr h (\\p -> c_last_error p)
10720 if (str == nullPtr)
10721 then return \"no error\"
10722 else peekCString str
10726 (* Generate wrappers for each foreign function. *)
10728 fun (name, style, _, _, _, _, _) ->
10729 if can_generate style then (
10730 pr "foreign import ccall unsafe \"guestfs_%s\" c_%s\n" name name;
10732 generate_haskell_prototype ~handle:"GuestfsP" style;
10736 generate_haskell_prototype ~handle:"GuestfsH" ~hs:true style;
10738 pr "%s %s = do\n" name
10739 (String.concat " " ("h" :: List.map name_of_argt (snd style)));
10741 (* Convert pointer arguments using with* functions. *)
10746 | Pathname n | Device n | Dev_or_Path n | String n ->
10747 pr "withCString %s $ \\%s -> " n n
10749 pr "withCStringLen %s $ \\(%s, %s_size) -> " n n n
10750 | OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
10751 | StringList n | DeviceList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
10752 | Bool _ | Int _ | Int64 _ -> ()
10754 (* Convert integer arguments. *)
10758 | Bool n -> sprintf "(fromBool %s)" n
10759 | Int n -> sprintf "(fromIntegral %s)" n
10760 | Int64 n -> sprintf "(fromIntegral %s)" n
10761 | FileIn n | FileOut n
10762 | Pathname n | Device n | Dev_or_Path n | String n | OptString n | StringList n | DeviceList n -> n
10763 | BufferIn n -> sprintf "%s (fromIntegral %s_size)" n n
10765 pr "withForeignPtr h (\\p -> c_%s %s)\n" name
10766 (String.concat " " ("p" :: args));
10767 (match fst style with
10768 | RErr | RInt _ | RInt64 _ | RBool _ ->
10769 pr " if (r == -1)\n";
10771 pr " err <- last_error h\n";
10773 | RConstString _ | RConstOptString _ | RString _
10774 | RStringList _ | RStruct _
10775 | RStructList _ | RHashtable _ | RBufferOut _ ->
10776 pr " if (r == nullPtr)\n";
10778 pr " err <- last_error h\n";
10781 (match fst style with
10783 pr " else return ()\n"
10785 pr " else return (fromIntegral r)\n"
10787 pr " else return (fromIntegral r)\n"
10789 pr " else return (toBool r)\n"
10791 | RConstOptString _
10798 pr " else return ()\n" (* XXXXXXXXXXXXXXXXXXXX *)
10804 and generate_haskell_prototype ~handle ?(hs = false) style =
10805 pr "%s -> " handle;
10806 let string = if hs then "String" else "CString" in
10807 let int = if hs then "Int" else "CInt" in
10808 let bool = if hs then "Bool" else "CInt" in
10809 let int64 = if hs then "Integer" else "Int64" in
10813 | Pathname _ | Device _ | Dev_or_Path _ | String _ -> pr "%s" string
10815 if hs then pr "String"
10816 else pr "CString -> CInt"
10817 | OptString _ -> if hs then pr "Maybe String" else pr "CString"
10818 | StringList _ | DeviceList _ -> if hs then pr "[String]" else pr "Ptr CString"
10819 | Bool _ -> pr "%s" bool
10820 | Int _ -> pr "%s" int
10821 | Int64 _ -> pr "%s" int
10822 | FileIn _ -> pr "%s" string
10823 | FileOut _ -> pr "%s" string
10828 (match fst style with
10829 | RErr -> if not hs then pr "CInt"
10830 | RInt _ -> pr "%s" int
10831 | RInt64 _ -> pr "%s" int64
10832 | RBool _ -> pr "%s" bool
10833 | RConstString _ -> pr "%s" string
10834 | RConstOptString _ -> pr "Maybe %s" string
10835 | RString _ -> pr "%s" string
10836 | RStringList _ -> pr "[%s]" string
10837 | RStruct (_, typ) ->
10838 let name = java_name_of_struct typ in
10840 | RStructList (_, typ) ->
10841 let name = java_name_of_struct typ in
10843 | RHashtable _ -> pr "Hashtable"
10844 | RBufferOut _ -> pr "%s" string
10848 and generate_csharp () =
10849 generate_header CPlusPlusStyle LGPLv2plus;
10851 (* XXX Make this configurable by the C# assembly users. *)
10852 let library = "libguestfs.so.0" in
10855 // These C# bindings are highly experimental at present.
10857 // Firstly they only work on Linux (ie. Mono). In order to get them
10858 // to work on Windows (ie. .Net) you would need to port the library
10859 // itself to Windows first.
10861 // The second issue is that some calls are known to be incorrect and
10862 // can cause Mono to segfault. Particularly: calls which pass or
10863 // return string[], or return any structure value. This is because
10864 // we haven't worked out the correct way to do this from C#.
10866 // The third issue is that when compiling you get a lot of warnings.
10867 // We are not sure whether the warnings are important or not.
10869 // Fourthly we do not routinely build or test these bindings as part
10870 // of the make && make check cycle, which means that regressions might
10873 // Suggestions and patches are welcome.
10877 // gmcs Libguestfs.cs
10878 // mono Libguestfs.exe
10880 // (You'll probably want to add a Test class / static main function
10881 // otherwise this won't do anything useful).
10885 using System.Runtime.InteropServices;
10886 using System.Runtime.Serialization;
10887 using System.Collections;
10891 class Error : System.ApplicationException
10893 public Error (string message) : base (message) {}
10894 protected Error (SerializationInfo info, StreamingContext context) {}
10901 [DllImport (\"%s\")]
10902 static extern IntPtr guestfs_create ();
10906 _handle = guestfs_create ();
10907 if (_handle == IntPtr.Zero)
10908 throw new Error (\"could not create guestfs handle\");
10911 [DllImport (\"%s\")]
10912 static extern void guestfs_close (IntPtr h);
10916 guestfs_close (_handle);
10919 [DllImport (\"%s\")]
10920 static extern string guestfs_last_error (IntPtr h);
10922 " library library library;
10924 (* Generate C# structure bindings. We prefix struct names with
10925 * underscore because C# cannot have conflicting struct names and
10926 * method names (eg. "class stat" and "stat").
10930 pr " [StructLayout (LayoutKind.Sequential)]\n";
10931 pr " public class _%s {\n" typ;
10934 | name, FChar -> pr " char %s;\n" name
10935 | name, FString -> pr " string %s;\n" name
10937 pr " uint %s_len;\n" name;
10938 pr " string %s;\n" name
10940 pr " [MarshalAs (UnmanagedType.ByValTStr, SizeConst=16)]\n";
10941 pr " string %s;\n" name
10942 | name, FUInt32 -> pr " uint %s;\n" name
10943 | name, FInt32 -> pr " int %s;\n" name
10944 | name, (FUInt64|FBytes) -> pr " ulong %s;\n" name
10945 | name, FInt64 -> pr " long %s;\n" name
10946 | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
10952 (* Generate C# function bindings. *)
10954 fun (name, style, _, _, _, shortdesc, _) ->
10955 let rec csharp_return_type () =
10956 match fst style with
10958 | RBool n -> "bool"
10960 | RInt64 n -> "long"
10962 | RConstOptString n
10964 | RBufferOut n -> "string"
10965 | RStruct (_,n) -> "_" ^ n
10966 | RHashtable n -> "Hashtable"
10967 | RStringList n -> "string[]"
10968 | RStructList (_,n) -> sprintf "_%s[]" n
10970 and c_return_type () =
10971 match fst style with
10975 | RInt64 _ -> "long"
10977 | RConstOptString _
10979 | RBufferOut _ -> "string"
10980 | RStruct (_,n) -> "_" ^ n
10982 | RStringList _ -> "string[]"
10983 | RStructList (_,n) -> sprintf "_%s[]" n
10985 and c_error_comparison () =
10986 match fst style with
10990 | RInt64 _ -> "== -1"
10992 | RConstOptString _
10998 | RStructList (_,_) -> "== null"
11000 and generate_extern_prototype () =
11001 pr " static extern %s guestfs_%s (IntPtr h"
11002 (c_return_type ()) name;
11005 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
11006 | FileIn n | FileOut n
11008 pr ", [In] string %s" n
11009 | StringList n | DeviceList n ->
11010 pr ", [In] string[] %s" n
11020 and generate_public_prototype () =
11021 pr " public %s %s (" (csharp_return_type ()) name;
11022 let comma = ref false in
11024 if !comma then pr ", ";
11029 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
11030 | FileIn n | FileOut n
11032 next (); pr "string %s" n
11033 | StringList n | DeviceList n ->
11034 next (); pr "string[] %s" n
11036 next (); pr "bool %s" n
11038 next (); pr "int %s" n
11040 next (); pr "long %s" n
11044 and generate_call () =
11045 pr "guestfs_%s (_handle" name;
11046 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) (snd style);
11050 pr " [DllImport (\"%s\")]\n" library;
11051 generate_extern_prototype ();
11053 pr " /// <summary>\n";
11054 pr " /// %s\n" shortdesc;
11055 pr " /// </summary>\n";
11056 generate_public_prototype ();
11058 pr " %s r;\n" (c_return_type ());
11061 pr " if (r %s)\n" (c_error_comparison ());
11062 pr " throw new Error (guestfs_last_error (_handle));\n";
11063 (match fst style with
11066 pr " return r != 0 ? true : false;\n"
11068 pr " Hashtable rr = new Hashtable ();\n";
11069 pr " for (int i = 0; i < r.Length; i += 2)\n";
11070 pr " rr.Add (r[i], r[i+1]);\n";
11072 | RInt _ | RInt64 _ | RConstString _ | RConstOptString _
11073 | RString _ | RBufferOut _ | RStruct _ | RStringList _
11079 ) all_functions_sorted;
11085 and generate_bindtests () =
11086 generate_header CStyle LGPLv2plus;
11090 #include <stdlib.h>
11091 #include <inttypes.h>
11092 #include <string.h>
11094 #include \"guestfs.h\"
11095 #include \"guestfs-internal.h\"
11096 #include \"guestfs-internal-actions.h\"
11097 #include \"guestfs_protocol.h\"
11099 #define error guestfs_error
11100 #define safe_calloc guestfs_safe_calloc
11101 #define safe_malloc guestfs_safe_malloc
11104 print_strings (char *const *argv)
11109 for (argc = 0; argv[argc] != NULL; ++argc) {
11110 if (argc > 0) printf (\", \");
11111 printf (\"\\\"%%s\\\"\", argv[argc]);
11116 /* The test0 function prints its parameters to stdout. */
11120 match test_functions with
11121 | [] -> assert false
11122 | test0 :: tests -> test0, tests in
11125 let (name, style, _, _, _, _, _) = test0 in
11126 generate_prototype ~extern:false ~semicolon:false ~newline:true
11127 ~handle:"g" ~prefix:"guestfs__" name style;
11132 | Device n | Dev_or_Path n
11135 | FileOut n -> pr " printf (\"%%s\\n\", %s);\n" n
11139 pr " for (i = 0; i < %s_size; ++i)\n" n;
11140 pr " printf (\"<%%02x>\", %s[i]);\n" n;
11141 pr " printf (\"\\n\");\n";
11143 | OptString n -> pr " printf (\"%%s\\n\", %s ? %s : \"null\");\n" n n
11144 | StringList n | DeviceList n -> pr " print_strings (%s);\n" n
11145 | Bool n -> pr " printf (\"%%s\\n\", %s ? \"true\" : \"false\");\n" n
11146 | Int n -> pr " printf (\"%%d\\n\", %s);\n" n
11147 | Int64 n -> pr " printf (\"%%\" PRIi64 \"\\n\", %s);\n" n
11149 pr " /* Java changes stdout line buffering so we need this: */\n";
11150 pr " fflush (stdout);\n";
11156 fun (name, style, _, _, _, _, _) ->
11157 if String.sub name (String.length name - 3) 3 <> "err" then (
11158 pr "/* Test normal return. */\n";
11159 generate_prototype ~extern:false ~semicolon:false ~newline:true
11160 ~handle:"g" ~prefix:"guestfs__" name style;
11162 (match fst style with
11167 pr " sscanf (val, \"%%d\", &r);\n";
11170 pr " int64_t r;\n";
11171 pr " sscanf (val, \"%%\" SCNi64, &r);\n";
11174 pr " return STREQ (val, \"true\");\n"
11176 | RConstOptString _ ->
11177 (* Can't return the input string here. Return a static
11178 * string so we ensure we get a segfault if the caller
11179 * tries to free it.
11181 pr " return \"static string\";\n"
11183 pr " return strdup (val);\n"
11185 pr " char **strs;\n";
11187 pr " sscanf (val, \"%%d\", &n);\n";
11188 pr " strs = safe_malloc (g, (n+1) * sizeof (char *));\n";
11189 pr " for (i = 0; i < n; ++i) {\n";
11190 pr " strs[i] = safe_malloc (g, 16);\n";
11191 pr " snprintf (strs[i], 16, \"%%d\", i);\n";
11193 pr " strs[n] = NULL;\n";
11194 pr " return strs;\n"
11195 | RStruct (_, typ) ->
11196 pr " struct guestfs_%s *r;\n" typ;
11197 pr " r = safe_calloc (g, sizeof *r, 1);\n";
11199 | RStructList (_, typ) ->
11200 pr " struct guestfs_%s_list *r;\n" typ;
11201 pr " r = safe_calloc (g, sizeof *r, 1);\n";
11202 pr " sscanf (val, \"%%d\", &r->len);\n";
11203 pr " r->val = safe_calloc (g, r->len, sizeof *r->val);\n";
11206 pr " char **strs;\n";
11208 pr " sscanf (val, \"%%d\", &n);\n";
11209 pr " strs = safe_malloc (g, (n*2+1) * sizeof (*strs));\n";
11210 pr " for (i = 0; i < n; ++i) {\n";
11211 pr " strs[i*2] = safe_malloc (g, 16);\n";
11212 pr " strs[i*2+1] = safe_malloc (g, 16);\n";
11213 pr " snprintf (strs[i*2], 16, \"%%d\", i);\n";
11214 pr " snprintf (strs[i*2+1], 16, \"%%d\", i);\n";
11216 pr " strs[n*2] = NULL;\n";
11217 pr " return strs;\n"
11219 pr " return strdup (val);\n"
11224 pr "/* Test error return. */\n";
11225 generate_prototype ~extern:false ~semicolon:false ~newline:true
11226 ~handle:"g" ~prefix:"guestfs__" name style;
11228 pr " error (g, \"error\");\n";
11229 (match fst style with
11230 | RErr | RInt _ | RInt64 _ | RBool _ ->
11232 | RConstString _ | RConstOptString _
11233 | RString _ | RStringList _ | RStruct _
11237 pr " return NULL;\n"
11244 and generate_ocaml_bindtests () =
11245 generate_header OCamlStyle GPLv2plus;
11249 let g = Guestfs.create () in
11253 String.concat " " (
11256 | CallString s -> "\"" ^ s ^ "\""
11257 | CallOptString None -> "None"
11258 | CallOptString (Some s) -> sprintf "(Some \"%s\")" s
11259 | CallStringList xs ->
11260 "[|" ^ String.concat ";" (List.map (sprintf "\"%s\"") xs) ^ "|]"
11261 | CallInt i when i >= 0 -> string_of_int i
11262 | CallInt i (* when i < 0 *) -> "(" ^ string_of_int i ^ ")"
11263 | CallInt64 i when i >= 0L -> Int64.to_string i ^ "L"
11264 | CallInt64 i (* when i < 0L *) -> "(" ^ Int64.to_string i ^ "L)"
11265 | CallBool b -> string_of_bool b
11266 | CallBuffer s -> sprintf "%S" s
11271 generate_lang_bindtests (
11272 fun f args -> pr " Guestfs.%s g %s;\n" f (mkargs args)
11275 pr "print_endline \"EOF\"\n"
11277 and generate_perl_bindtests () =
11278 pr "#!/usr/bin/perl -w\n";
11279 generate_header HashStyle GPLv2plus;
11286 my $g = Sys::Guestfs->new ();
11290 String.concat ", " (
11293 | CallString s -> "\"" ^ s ^ "\""
11294 | CallOptString None -> "undef"
11295 | CallOptString (Some s) -> sprintf "\"%s\"" s
11296 | CallStringList xs ->
11297 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
11298 | CallInt i -> string_of_int i
11299 | CallInt64 i -> Int64.to_string i
11300 | CallBool b -> if b then "1" else "0"
11301 | CallBuffer s -> "\"" ^ c_quote s ^ "\""
11306 generate_lang_bindtests (
11307 fun f args -> pr "$g->%s (%s);\n" f (mkargs args)
11310 pr "print \"EOF\\n\"\n"
11312 and generate_python_bindtests () =
11313 generate_header HashStyle GPLv2plus;
11318 g = guestfs.GuestFS ()
11322 String.concat ", " (
11325 | CallString s -> "\"" ^ s ^ "\""
11326 | CallOptString None -> "None"
11327 | CallOptString (Some s) -> sprintf "\"%s\"" s
11328 | CallStringList xs ->
11329 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
11330 | CallInt i -> string_of_int i
11331 | CallInt64 i -> Int64.to_string i
11332 | CallBool b -> if b then "1" else "0"
11333 | CallBuffer s -> "\"" ^ c_quote s ^ "\""
11338 generate_lang_bindtests (
11339 fun f args -> pr "g.%s (%s)\n" f (mkargs args)
11342 pr "print \"EOF\"\n"
11344 and generate_ruby_bindtests () =
11345 generate_header HashStyle GPLv2plus;
11350 g = Guestfs::create()
11354 String.concat ", " (
11357 | CallString s -> "\"" ^ s ^ "\""
11358 | CallOptString None -> "nil"
11359 | CallOptString (Some s) -> sprintf "\"%s\"" s
11360 | CallStringList xs ->
11361 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
11362 | CallInt i -> string_of_int i
11363 | CallInt64 i -> Int64.to_string i
11364 | CallBool b -> string_of_bool b
11365 | CallBuffer s -> "\"" ^ c_quote s ^ "\""
11370 generate_lang_bindtests (
11371 fun f args -> pr "g.%s(%s)\n" f (mkargs args)
11374 pr "print \"EOF\\n\"\n"
11376 and generate_java_bindtests () =
11377 generate_header CStyle GPLv2plus;
11380 import com.redhat.et.libguestfs.*;
11382 public class Bindtests {
11383 public static void main (String[] argv)
11386 GuestFS g = new GuestFS ();
11390 String.concat ", " (
11393 | CallString s -> "\"" ^ s ^ "\""
11394 | CallOptString None -> "null"
11395 | CallOptString (Some s) -> sprintf "\"%s\"" s
11396 | CallStringList xs ->
11398 String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "}"
11399 | CallInt i -> string_of_int i
11400 | CallInt64 i -> Int64.to_string i
11401 | CallBool b -> string_of_bool b
11403 "new byte[] { " ^ String.concat "," (
11404 map_chars (fun c -> string_of_int (Char.code c)) s
11410 generate_lang_bindtests (
11411 fun f args -> pr " g.%s (%s);\n" f (mkargs args)
11415 System.out.println (\"EOF\");
11417 catch (Exception exn) {
11418 System.err.println (exn);
11425 and generate_haskell_bindtests () =
11426 generate_header HaskellStyle GPLv2plus;
11429 module Bindtests where
11430 import qualified Guestfs
11433 g <- Guestfs.create
11437 String.concat " " (
11440 | CallString s -> "\"" ^ s ^ "\""
11441 | CallOptString None -> "Nothing"
11442 | CallOptString (Some s) -> sprintf "(Just \"%s\")" s
11443 | CallStringList xs ->
11444 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
11445 | CallInt i when i < 0 -> "(" ^ string_of_int i ^ ")"
11446 | CallInt i -> string_of_int i
11447 | CallInt64 i when i < 0L -> "(" ^ Int64.to_string i ^ ")"
11448 | CallInt64 i -> Int64.to_string i
11449 | CallBool true -> "True"
11450 | CallBool false -> "False"
11451 | CallBuffer s -> "\"" ^ c_quote s ^ "\""
11456 generate_lang_bindtests (
11457 fun f args -> pr " Guestfs.%s g %s\n" f (mkargs args)
11460 pr " putStrLn \"EOF\"\n"
11462 (* Language-independent bindings tests - we do it this way to
11463 * ensure there is parity in testing bindings across all languages.
11465 and generate_lang_bindtests call =
11466 call "test0" [CallString "abc"; CallOptString (Some "def");
11467 CallStringList []; CallBool false;
11468 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11469 CallBuffer "abc\000abc"];
11470 call "test0" [CallString "abc"; CallOptString None;
11471 CallStringList []; CallBool false;
11472 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11473 CallBuffer "abc\000abc"];
11474 call "test0" [CallString ""; CallOptString (Some "def");
11475 CallStringList []; CallBool false;
11476 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11477 CallBuffer "abc\000abc"];
11478 call "test0" [CallString ""; CallOptString (Some "");
11479 CallStringList []; CallBool false;
11480 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11481 CallBuffer "abc\000abc"];
11482 call "test0" [CallString "abc"; CallOptString (Some "def");
11483 CallStringList ["1"]; CallBool false;
11484 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11485 CallBuffer "abc\000abc"];
11486 call "test0" [CallString "abc"; CallOptString (Some "def");
11487 CallStringList ["1"; "2"]; CallBool false;
11488 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11489 CallBuffer "abc\000abc"];
11490 call "test0" [CallString "abc"; CallOptString (Some "def");
11491 CallStringList ["1"]; CallBool true;
11492 CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
11493 CallBuffer "abc\000abc"];
11494 call "test0" [CallString "abc"; CallOptString (Some "def");
11495 CallStringList ["1"]; CallBool false;
11496 CallInt (-1); CallInt64 (-1L); CallString "123"; CallString "456";
11497 CallBuffer "abc\000abc"];
11498 call "test0" [CallString "abc"; CallOptString (Some "def");
11499 CallStringList ["1"]; CallBool false;
11500 CallInt (-2); CallInt64 (-2L); CallString "123"; CallString "456";
11501 CallBuffer "abc\000abc"];
11502 call "test0" [CallString "abc"; CallOptString (Some "def");
11503 CallStringList ["1"]; CallBool false;
11504 CallInt 1; CallInt64 1L; CallString "123"; CallString "456";
11505 CallBuffer "abc\000abc"];
11506 call "test0" [CallString "abc"; CallOptString (Some "def");
11507 CallStringList ["1"]; CallBool false;
11508 CallInt 2; CallInt64 2L; CallString "123"; CallString "456";
11509 CallBuffer "abc\000abc"];
11510 call "test0" [CallString "abc"; CallOptString (Some "def");
11511 CallStringList ["1"]; CallBool false;
11512 CallInt 4095; CallInt64 4095L; CallString "123"; CallString "456";
11513 CallBuffer "abc\000abc"];
11514 call "test0" [CallString "abc"; CallOptString (Some "def");
11515 CallStringList ["1"]; CallBool false;
11516 CallInt 0; CallInt64 0L; CallString ""; CallString "";
11517 CallBuffer "abc\000abc"]
11519 (* XXX Add here tests of the return and error functions. *)
11521 (* Code to generator bindings for virt-inspector. Currently only
11522 * implemented for OCaml code (for virt-p2v 2.0).
11524 let rng_input = "inspector/virt-inspector.rng"
11526 (* Read the input file and parse it into internal structures. This is
11527 * by no means a complete RELAX NG parser, but is just enough to be
11528 * able to parse the specific input file.
11531 | Element of string * rng list (* <element name=name/> *)
11532 | Attribute of string * rng list (* <attribute name=name/> *)
11533 | Interleave of rng list (* <interleave/> *)
11534 | ZeroOrMore of rng (* <zeroOrMore/> *)
11535 | OneOrMore of rng (* <oneOrMore/> *)
11536 | Optional of rng (* <optional/> *)
11537 | Choice of string list (* <choice><value/>*</choice> *)
11538 | Value of string (* <value>str</value> *)
11539 | Text (* <text/> *)
11541 let rec string_of_rng = function
11542 | Element (name, xs) ->
11543 "Element (\"" ^ name ^ "\", (" ^ string_of_rng_list xs ^ "))"
11544 | Attribute (name, xs) ->
11545 "Attribute (\"" ^ name ^ "\", (" ^ string_of_rng_list xs ^ "))"
11546 | Interleave xs -> "Interleave (" ^ string_of_rng_list xs ^ ")"
11547 | ZeroOrMore rng -> "ZeroOrMore (" ^ string_of_rng rng ^ ")"
11548 | OneOrMore rng -> "OneOrMore (" ^ string_of_rng rng ^ ")"
11549 | Optional rng -> "Optional (" ^ string_of_rng rng ^ ")"
11550 | Choice values -> "Choice [" ^ String.concat ", " values ^ "]"
11551 | Value value -> "Value \"" ^ value ^ "\""
11554 and string_of_rng_list xs =
11555 String.concat ", " (List.map string_of_rng xs)
11557 let rec parse_rng ?defines context = function
11559 | Xml.Element ("element", ["name", name], children) :: rest ->
11560 Element (name, parse_rng ?defines context children)
11561 :: parse_rng ?defines context rest
11562 | Xml.Element ("attribute", ["name", name], children) :: rest ->
11563 Attribute (name, parse_rng ?defines context children)
11564 :: parse_rng ?defines context rest
11565 | Xml.Element ("interleave", [], children) :: rest ->
11566 Interleave (parse_rng ?defines context children)
11567 :: parse_rng ?defines context rest
11568 | Xml.Element ("zeroOrMore", [], [child]) :: rest ->
11569 let rng = parse_rng ?defines context [child] in
11571 | [child] -> ZeroOrMore child :: parse_rng ?defines context rest
11573 failwithf "%s: <zeroOrMore> contains more than one child element"
11576 | Xml.Element ("oneOrMore", [], [child]) :: rest ->
11577 let rng = parse_rng ?defines context [child] in
11579 | [child] -> OneOrMore child :: parse_rng ?defines context rest
11581 failwithf "%s: <oneOrMore> contains more than one child element"
11584 | Xml.Element ("optional", [], [child]) :: rest ->
11585 let rng = parse_rng ?defines context [child] in
11587 | [child] -> Optional child :: parse_rng ?defines context rest
11589 failwithf "%s: <optional> contains more than one child element"
11592 | Xml.Element ("choice", [], children) :: rest ->
11593 let values = List.map (
11594 function Xml.Element ("value", [], [Xml.PCData value]) -> value
11596 failwithf "%s: can't handle anything except <value> in <choice>"
11600 :: parse_rng ?defines context rest
11601 | Xml.Element ("value", [], [Xml.PCData value]) :: rest ->
11602 Value value :: parse_rng ?defines context rest
11603 | Xml.Element ("text", [], []) :: rest ->
11604 Text :: parse_rng ?defines context rest
11605 | Xml.Element ("ref", ["name", name], []) :: rest ->
11606 (* Look up the reference. Because of limitations in this parser,
11607 * we can't handle arbitrarily nested <ref> yet. You can only
11608 * use <ref> from inside <start>.
11610 (match defines with
11612 failwithf "%s: contains <ref>, but no refs are defined yet" context
11614 let rng = StringMap.find name map in
11615 rng @ parse_rng ?defines context rest
11618 failwithf "%s: can't handle '%s' in schema" context (Xml.to_string x)
11621 let xml = Xml.parse_file rng_input in
11623 | Xml.Element ("grammar", _,
11624 Xml.Element ("start", _, gram) :: defines) ->
11625 (* The <define/> elements are referenced in the <start> section,
11626 * so build a map of those first.
11628 let defines = List.fold_left (
11630 function Xml.Element ("define", ["name", name], defn) ->
11631 StringMap.add name defn map
11633 failwithf "%s: expected <define name=name/>" rng_input
11634 ) StringMap.empty defines in
11635 let defines = StringMap.mapi parse_rng defines in
11637 (* Parse the <start> clause, passing the defines. *)
11638 parse_rng ~defines "<start>" gram
11640 failwithf "%s: input is not <grammar><start/><define>*</grammar>"
11643 let name_of_field = function
11644 | Element (name, _) | Attribute (name, _)
11645 | ZeroOrMore (Element (name, _))
11646 | OneOrMore (Element (name, _))
11647 | Optional (Element (name, _)) -> name
11648 | Optional (Attribute (name, _)) -> name
11649 | Text -> (* an unnamed field in an element *)
11652 failwithf "name_of_field failed at: %s" (string_of_rng rng)
11654 (* At the moment this function only generates OCaml types. However we
11655 * should parameterize it later so it can generate types/structs in a
11656 * variety of languages.
11658 let generate_types xs =
11659 (* A simple type is one that can be printed out directly, eg.
11660 * "string option". A complex type is one which has a name and has
11661 * to be defined via another toplevel definition, eg. a struct.
11663 * generate_type generates code for either simple or complex types.
11664 * In the simple case, it returns the string ("string option"). In
11665 * the complex case, it returns the name ("mountpoint"). In the
11666 * complex case it has to print out the definition before returning,
11667 * so it should only be called when we are at the beginning of a
11668 * new line (BOL context).
11670 let rec generate_type = function
11671 | Text -> (* string *)
11673 | Choice values -> (* [`val1|`val2|...] *)
11674 "[" ^ String.concat "|" (List.map ((^)"`") values) ^ "]", true
11675 | ZeroOrMore rng -> (* <rng> list *)
11676 let t, is_simple = generate_type rng in
11677 t ^ " list (* 0 or more *)", is_simple
11678 | OneOrMore rng -> (* <rng> list *)
11679 let t, is_simple = generate_type rng in
11680 t ^ " list (* 1 or more *)", is_simple
11681 (* virt-inspector hack: bool *)
11682 | Optional (Attribute (name, [Value "1"])) ->
11684 | Optional rng -> (* <rng> list *)
11685 let t, is_simple = generate_type rng in
11686 t ^ " option", is_simple
11687 (* type name = { fields ... } *)
11688 | Element (name, fields) when is_attrs_interleave fields ->
11689 generate_type_struct name (get_attrs_interleave fields)
11690 | Element (name, [field]) (* type name = field *)
11691 | Attribute (name, [field]) ->
11692 let t, is_simple = generate_type field in
11693 if is_simple then (t, true)
11695 pr "type %s = %s\n" name t;
11698 | Element (name, fields) -> (* type name = { fields ... } *)
11699 generate_type_struct name fields
11701 failwithf "generate_type failed at: %s" (string_of_rng rng)
11703 and is_attrs_interleave = function
11704 | [Interleave _] -> true
11705 | Attribute _ :: fields -> is_attrs_interleave fields
11706 | Optional (Attribute _) :: fields -> is_attrs_interleave fields
11709 and get_attrs_interleave = function
11710 | [Interleave fields] -> fields
11711 | ((Attribute _) as field) :: fields
11712 | ((Optional (Attribute _)) as field) :: fields ->
11713 field :: get_attrs_interleave fields
11714 | _ -> assert false
11716 and generate_types xs =
11717 List.iter (fun x -> ignore (generate_type x)) xs
11719 and generate_type_struct name fields =
11720 (* Calculate the types of the fields first. We have to do this
11721 * before printing anything so we are still in BOL context.
11723 let types = List.map fst (List.map generate_type fields) in
11725 (* Special case of a struct containing just a string and another
11726 * field. Turn it into an assoc list.
11729 | ["string"; other] ->
11730 let fname1, fname2 =
11732 | [f1; f2] -> name_of_field f1, name_of_field f2
11733 | _ -> assert false in
11734 pr "type %s = string * %s (* %s -> %s *)\n" name other fname1 fname2;
11738 pr "type %s = {\n" name;
11740 fun (field, ftype) ->
11741 let fname = name_of_field field in
11742 pr " %s_%s : %s;\n" name fname ftype
11743 ) (List.combine fields types);
11745 (* Return the name of this type, and
11746 * false because it's not a simple type.
11753 let generate_parsers xs =
11754 (* As for generate_type above, generate_parser makes a parser for
11755 * some type, and returns the name of the parser it has generated.
11756 * Because it (may) need to print something, it should always be
11757 * called in BOL context.
11759 let rec generate_parser = function
11760 | Text -> (* string *)
11761 "string_child_or_empty"
11762 | Choice values -> (* [`val1|`val2|...] *)
11763 sprintf "(fun x -> match Xml.pcdata (first_child x) with %s | str -> failwith (\"unexpected field value: \" ^ str))"
11765 (List.map (fun v -> sprintf "%S -> `%s" v v) values))
11766 | ZeroOrMore rng -> (* <rng> list *)
11767 let pa = generate_parser rng in
11768 sprintf "(fun x -> List.map %s (Xml.children x))" pa
11769 | OneOrMore rng -> (* <rng> list *)
11770 let pa = generate_parser rng in
11771 sprintf "(fun x -> List.map %s (Xml.children x))" pa
11772 (* virt-inspector hack: bool *)
11773 | Optional (Attribute (name, [Value "1"])) ->
11774 sprintf "(fun x -> try ignore (Xml.attrib x %S); true with Xml.No_attribute _ -> false)" name
11775 | Optional rng -> (* <rng> list *)
11776 let pa = generate_parser rng in
11777 sprintf "(function None -> None | Some x -> Some (%s x))" pa
11778 (* type name = { fields ... } *)
11779 | Element (name, fields) when is_attrs_interleave fields ->
11780 generate_parser_struct name (get_attrs_interleave fields)
11781 | Element (name, [field]) -> (* type name = field *)
11782 let pa = generate_parser field in
11783 let parser_name = sprintf "parse_%s_%d" name (unique ()) in
11784 pr "let %s =\n" parser_name;
11786 pr "let parse_%s = %s\n" name parser_name;
11788 | Attribute (name, [field]) ->
11789 let pa = generate_parser field in
11790 let parser_name = sprintf "parse_%s_%d" name (unique ()) in
11791 pr "let %s =\n" parser_name;
11793 pr "let parse_%s = %s\n" name parser_name;
11795 | Element (name, fields) -> (* type name = { fields ... } *)
11796 generate_parser_struct name ([], fields)
11798 failwithf "generate_parser failed at: %s" (string_of_rng rng)
11800 and is_attrs_interleave = function
11801 | [Interleave _] -> true
11802 | Attribute _ :: fields -> is_attrs_interleave fields
11803 | Optional (Attribute _) :: fields -> is_attrs_interleave fields
11806 and get_attrs_interleave = function
11807 | [Interleave fields] -> [], fields
11808 | ((Attribute _) as field) :: fields
11809 | ((Optional (Attribute _)) as field) :: fields ->
11810 let attrs, interleaves = get_attrs_interleave fields in
11811 (field :: attrs), interleaves
11812 | _ -> assert false
11814 and generate_parsers xs =
11815 List.iter (fun x -> ignore (generate_parser x)) xs
11817 and generate_parser_struct name (attrs, interleaves) =
11818 (* Generate parsers for the fields first. We have to do this
11819 * before printing anything so we are still in BOL context.
11821 let fields = attrs @ interleaves in
11822 let pas = List.map generate_parser fields in
11824 (* Generate an intermediate tuple from all the fields first.
11825 * If the type is just a string + another field, then we will
11826 * return this directly, otherwise it is turned into a record.
11828 * RELAX NG note: This code treats <interleave> and plain lists of
11829 * fields the same. In other words, it doesn't bother enforcing
11830 * any ordering of fields in the XML.
11832 pr "let parse_%s x =\n" name;
11833 pr " let t = (\n ";
11834 let comma = ref false in
11837 if !comma then pr ",\n ";
11840 | Optional (Attribute (fname, [field])), pa ->
11842 | Optional (Element (fname, [field])), pa ->
11843 pr "%s (optional_child %S x)" pa fname
11844 | Attribute (fname, [Text]), _ ->
11845 pr "attribute %S x" fname
11846 | (ZeroOrMore _ | OneOrMore _), pa ->
11851 let fname = name_of_field field in
11852 pr "%s (child %S x)" pa fname
11853 ) (List.combine fields pas);
11857 | [Element (_, [Text]) | Attribute (_, [Text]); _] ->
11861 pr " (Obj.magic t : %s)\n" name
11865 | (Optional (Attribute (fname, [field])), pa) ->
11866 pr " %s_%s =\n" name fname;
11868 | (Optional (Element (fname, [field])), pa) ->
11869 pr " %s_%s =\n" name fname;
11870 pr " (let x = optional_child %S x in\n" fname;
11873 let fname = name_of_field field in
11874 pr " %s_%s =\n" name fname;
11875 pr " (let x = child %S x in\n" fname;
11877 ) (List.combine fields pas);
11881 sprintf "parse_%s" name
11884 generate_parsers xs
11886 (* Generate ocaml/guestfs_inspector.mli. *)
11887 let generate_ocaml_inspector_mli () =
11888 generate_header ~extra_inputs:[rng_input] OCamlStyle LGPLv2plus;
11891 (** This is an OCaml language binding to the external [virt-inspector]
11894 For more information, please read the man page [virt-inspector(1)].
11899 generate_types grammar;
11900 pr "(** The nested information returned from the {!inspect} function. *)\n";
11904 val inspect : ?connect:string -> ?xml:string -> string list -> operatingsystems
11905 (** To inspect a libvirt domain called [name], pass a singleton
11906 list: [inspect [name]]. When using libvirt only, you may
11907 optionally pass a libvirt URI using [inspect ~connect:uri ...].
11909 To inspect a disk image or images, pass a list of the filenames
11910 of the disk images: [inspect filenames]
11912 This function inspects the given guest or disk images and
11913 returns a list of operating system(s) found and a large amount
11914 of information about them. In the vast majority of cases,
11915 a virtual machine only contains a single operating system.
11917 If the optional [~xml] parameter is given, then this function
11918 skips running the external virt-inspector program and just
11919 parses the given XML directly (which is expected to be XML
11920 produced from a previous run of virt-inspector). The list of
11921 names and connect URI are ignored in this case.
11923 This function can throw a wide variety of exceptions, for example
11924 if the external virt-inspector program cannot be found, or if
11925 it doesn't generate valid XML.
11929 (* Generate ocaml/guestfs_inspector.ml. *)
11930 let generate_ocaml_inspector_ml () =
11931 generate_header ~extra_inputs:[rng_input] OCamlStyle LGPLv2plus;
11936 generate_types grammar;
11940 (* Misc functions which are used by the parser code below. *)
11941 let first_child = function
11942 | Xml.Element (_, _, c::_) -> c
11943 | Xml.Element (name, _, []) ->
11944 failwith (\"expected <\" ^ name ^ \"/> to have a child node\")
11945 | Xml.PCData str ->
11946 failwith (\"expected XML tag, but read PCDATA '\" ^ str ^ \"' instead\")
11948 let string_child_or_empty = function
11949 | Xml.Element (_, _, [Xml.PCData s]) -> s
11950 | Xml.Element (_, _, []) -> \"\"
11951 | Xml.Element (x, _, _) ->
11952 failwith (\"expected XML tag with a single PCDATA child, but got \" ^
11954 | Xml.PCData str ->
11955 failwith (\"expected XML tag, but read PCDATA '\" ^ str ^ \"' instead\")
11957 let optional_child name xml =
11958 let children = Xml.children xml in
11960 Some (List.find (function
11961 | Xml.Element (n, _, _) when n = name -> true
11962 | _ -> false) children)
11966 let child name xml =
11967 match optional_child name xml with
11970 failwith (\"mandatory field <\" ^ name ^ \"/> missing in XML output\")
11972 let attribute name xml =
11973 try Xml.attrib xml name
11974 with Xml.No_attribute _ ->
11975 failwith (\"mandatory attribute \" ^ name ^ \" missing in XML output\")
11979 generate_parsers grammar;
11983 (* Run external virt-inspector, then use parser to parse the XML. *)
11984 let inspect ?connect ?xml names =
11988 if names = [] then invalid_arg \"inspect: no names given\";
11989 let cmd = [ \"virt-inspector\"; \"--xml\" ] @
11990 (match connect with None -> [] | Some uri -> [ \"--connect\"; uri ]) @
11992 let cmd = List.map Filename.quote cmd in
11993 let cmd = String.concat \" \" cmd in
11994 let chan = open_process_in cmd in
11995 let xml = Xml.parse_in chan in
11996 (match close_process_in chan with
11998 | WEXITED _ -> failwith \"external virt-inspector command failed\"
11999 | WSIGNALED i | WSTOPPED i ->
12000 failwith (\"external virt-inspector command died or stopped on sig \" ^
12005 Xml.parse_string doc in
12006 parse_operatingsystems xml
12009 and generate_max_proc_nr () =
12010 pr "%d\n" max_proc_nr
12012 let output_to filename k =
12013 let filename_new = filename ^ ".new" in
12014 chan := open_out filename_new;
12017 chan := Pervasives.stdout;
12019 (* Is the new file different from the current file? *)
12020 if Sys.file_exists filename && files_equal filename filename_new then
12021 unlink filename_new (* same, so skip it *)
12023 (* different, overwrite old one *)
12024 (try chmod filename 0o644 with Unix_error _ -> ());
12025 rename filename_new filename;
12026 chmod filename 0o444;
12027 printf "written %s\n%!" filename;
12030 let perror msg = function
12031 | Unix_error (err, _, _) ->
12032 eprintf "%s: %s\n" msg (error_message err)
12034 eprintf "%s: %s\n" msg (Printexc.to_string exn)
12036 (* Main program. *)
12039 try openfile "HACKING" [O_RDWR] 0
12041 | Unix_error (ENOENT, _, _) ->
12043 You are probably running this from the wrong directory.
12044 Run it from the top source directory using the command
12049 perror "open: HACKING" exn;
12052 (* Acquire a lock so parallel builds won't try to run the generator
12053 * twice at the same time. Subsequent builds will wait for the first
12054 * one to finish. Note the lock is released implicitly when the
12057 (try lockf lock_fd F_LOCK 1
12059 perror "lock: HACKING" exn;
12062 check_functions ();
12064 output_to "src/guestfs_protocol.x" generate_xdr;
12065 output_to "src/guestfs-structs.h" generate_structs_h;
12066 output_to "src/guestfs-actions.h" generate_actions_h;
12067 output_to "src/guestfs-internal-actions.h" generate_internal_actions_h;
12068 output_to "src/guestfs-actions.c" generate_client_actions;
12069 output_to "src/guestfs-bindtests.c" generate_bindtests;
12070 output_to "src/guestfs-structs.pod" generate_structs_pod;
12071 output_to "src/guestfs-actions.pod" generate_actions_pod;
12072 output_to "src/guestfs-availability.pod" generate_availability_pod;
12073 output_to "src/MAX_PROC_NR" generate_max_proc_nr;
12074 output_to "src/libguestfs.syms" generate_linker_script;
12075 output_to "daemon/actions.h" generate_daemon_actions_h;
12076 output_to "daemon/stubs.c" generate_daemon_actions;
12077 output_to "daemon/names.c" generate_daemon_names;
12078 output_to "daemon/optgroups.c" generate_daemon_optgroups_c;
12079 output_to "daemon/optgroups.h" generate_daemon_optgroups_h;
12080 output_to "capitests/tests.c" generate_tests;
12081 output_to "fish/cmds.c" generate_fish_cmds;
12082 output_to "fish/completion.c" generate_fish_completion;
12083 output_to "fish/guestfish-actions.pod" generate_fish_actions_pod;
12084 output_to "ocaml/guestfs.mli" generate_ocaml_mli;
12085 output_to "ocaml/guestfs.ml" generate_ocaml_ml;
12086 output_to "ocaml/guestfs_c_actions.c" generate_ocaml_c;
12087 output_to "ocaml/bindtests.ml" generate_ocaml_bindtests;
12088 output_to "ocaml/guestfs_inspector.mli" generate_ocaml_inspector_mli;
12089 output_to "ocaml/guestfs_inspector.ml" generate_ocaml_inspector_ml;
12090 output_to "perl/Guestfs.xs" generate_perl_xs;
12091 output_to "perl/lib/Sys/Guestfs.pm" generate_perl_pm;
12092 output_to "perl/bindtests.pl" generate_perl_bindtests;
12093 output_to "python/guestfs-py.c" generate_python_c;
12094 output_to "python/guestfs.py" generate_python_py;
12095 output_to "python/bindtests.py" generate_python_bindtests;
12096 output_to "ruby/ext/guestfs/_guestfs.c" generate_ruby_c;
12097 output_to "ruby/bindtests.rb" generate_ruby_bindtests;
12098 output_to "java/com/redhat/et/libguestfs/GuestFS.java" generate_java_java;
12102 let cols = cols_of_struct typ in
12103 let filename = sprintf "java/com/redhat/et/libguestfs/%s.java" jtyp in
12104 output_to filename (generate_java_struct jtyp cols);
12107 output_to "java/Makefile.inc" generate_java_makefile_inc;
12108 output_to "java/com_redhat_et_libguestfs_GuestFS.c" generate_java_c;
12109 output_to "java/Bindtests.java" generate_java_bindtests;
12110 output_to "haskell/Guestfs.hs" generate_haskell_hs;
12111 output_to "haskell/Bindtests.hs" generate_haskell_bindtests;
12112 output_to "csharp/Libguestfs.cs" generate_csharp;
12114 (* Always generate this file last, and unconditionally. It's used
12115 * by the Makefile to know when we must re-run the generator.
12117 let chan = open_out "src/stamp-generator" in
12118 fprintf chan "1\n";
12121 printf "generated %d lines of code\n" !lines