3 * Copyright (C) 2009 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 below), and
25 * daemon/<somefile>.c to write the implementation.
27 * After editing this file, run it (./src/generator.ml) to regenerate all the
28 * output files. Note that if you are using a separate build directory you
29 * must run generator.ml from the _source_ directory.
31 * IMPORTANT: This script should NOT print any warnings. If it prints
32 * warnings, you should treat them as errors.
33 * [Need to add -warn-error to ocaml command line]
41 type style = ret * args
43 (* "RErr" as a return value means an int used as a simple error
44 * indication, ie. 0 or -1.
48 (* "RInt" as a return value means an int which is -1 for error
49 * or any value >= 0 on success. Only use this for smallish
50 * positive ints (0 <= i < 2^30).
54 (* "RInt64" is the same as RInt, but is guaranteed to be able
55 * to return a full 64 bit value, _except_ that -1 means error
56 * (so -1 cannot be a valid, non-error return value).
60 (* "RBool" is a bool return value which can be true/false or
65 (* "RConstString" is a string that refers to a constant value.
66 * The return value must NOT be NULL (since NULL indicates
69 * Try to avoid using this. In particular you cannot use this
70 * for values returned from the daemon, because there is no
71 * thread-safe way to return them in the C API.
73 | RConstString of string
75 (* "RConstOptString" is an even more broken version of
76 * "RConstString". The returned string may be NULL and there
77 * is no way to return an error indication. Avoid using this!
79 | RConstOptString of string
81 (* "RString" is a returned string. It must NOT be NULL, since
82 * a NULL return indicates an error. The caller frees this.
86 (* "RStringList" is a list of strings. No string in the list
87 * can be NULL. The caller frees the strings and the array.
89 | RStringList of string
91 (* "RStruct" is a function which returns a single named structure
92 * or an error indication (in C, a struct, and in other languages
93 * with varying representations, but usually very efficient). See
94 * after the function list below for the structures.
96 | RStruct of string * string (* name of retval, name of struct *)
98 (* "RStructList" is a function which returns either a list/array
99 * of structures (could be zero-length), or an error indication.
101 | RStructList of string * string (* name of retval, name of struct *)
103 (* Key-value pairs of untyped strings. Turns into a hashtable or
104 * dictionary in languages which support it. DON'T use this as a
105 * general "bucket" for results. Prefer a stronger typed return
106 * value if one is available, or write a custom struct. Don't use
107 * this if the list could potentially be very long, since it is
108 * inefficient. Keys should be unique. NULLs are not permitted.
110 | RHashtable of string
112 (* "RBufferOut" is handled almost exactly like RString, but
113 * it allows the string to contain arbitrary 8 bit data including
114 * ASCII NUL. In the C API this causes an implicit extra parameter
115 * to be added of type <size_t *size_r>. The extra parameter
116 * returns the actual size of the return buffer in bytes.
118 * Other programming languages support strings with arbitrary 8 bit
121 * At the RPC layer we have to use the opaque<> type instead of
122 * string<>. Returned data is still limited to the max message
125 | RBufferOut of string
127 and args = argt list (* Function parameters, guestfs handle is implicit. *)
129 (* Note in future we should allow a "variable args" parameter as
130 * the final parameter, to allow commands like
131 * chmod mode file [file(s)...]
132 * This is not implemented yet, but many commands (such as chmod)
133 * are currently defined with the argument order keeping this future
134 * possibility in mind.
137 | String of string (* const char *name, cannot be NULL *)
138 | OptString of string (* const char *name, may be NULL *)
139 | StringList of string(* list of strings (each string cannot be NULL) *)
140 | Bool of string (* boolean *)
141 | Int of string (* int (smallish ints, signed, <= 31 bits) *)
142 (* These are treated as filenames (simple string parameters) in
143 * the C API and bindings. But in the RPC protocol, we transfer
144 * the actual file content up to or down from the daemon.
145 * FileIn: local machine -> daemon (in request)
146 * FileOut: daemon -> local machine (in reply)
147 * In guestfish (only), the special name "-" means read from
148 * stdin or write to stdout.
153 (* Opaque buffer which can contain arbitrary 8 bit data.
154 * In the C API, this is expressed as <char *, int> pair.
155 * Most other languages have a string type which can contain
156 * ASCII NUL. We use whatever type is appropriate for each
158 * Buffers are limited by the total message size. To transfer
159 * large blocks of data, use FileIn/FileOut parameters instead.
160 * To return an arbitrary buffer, use RBufferOut.
166 | ProtocolLimitWarning (* display warning about protocol size limits *)
167 | DangerWillRobinson (* flags particularly dangerous commands *)
168 | FishAlias of string (* provide an alias for this cmd in guestfish *)
169 | FishAction of string (* call this function in guestfish *)
170 | NotInFish (* do not export via guestfish *)
171 | NotInDocs (* do not add this function to documentation *)
172 | DeprecatedBy of string (* function is deprecated, use .. instead *)
174 (* You can supply zero or as many tests as you want per API call.
176 * Note that the test environment has 3 block devices, of size 500MB,
177 * 50MB and 10MB (respectively /dev/sda, /dev/sdb, /dev/sdc), and
178 * a fourth squashfs block device with some known files on it (/dev/sdd).
180 * Note for partitioning purposes, the 500MB device has 1015 cylinders.
181 * Number of cylinders was 63 for IDE emulated disks with precisely
182 * the same size. How exactly this is calculated is a mystery.
184 * The squashfs block device (/dev/sdd) comes from images/test.sqsh.
186 * To be able to run the tests in a reasonable amount of time,
187 * the virtual machine and block devices are reused between tests.
188 * So don't try testing kill_subprocess :-x
190 * Between each test we blockdev-setrw, umount-all, lvm-remove-all.
192 * Don't assume anything about the previous contents of the block
193 * devices. Use 'Init*' to create some initial scenarios.
195 * You can add a prerequisite clause to any individual test. This
196 * is a run-time check, which, if it fails, causes the test to be
197 * skipped. Useful if testing a command which might not work on
198 * all variations of libguestfs builds. A test that has prerequisite
199 * of 'Always' is run unconditionally.
201 * In addition, packagers can skip individual tests by setting the
202 * environment variables: eg:
203 * SKIP_TEST_<CMD>_<NUM>=1 SKIP_TEST_COMMAND_3=1 (skips test #3 of command)
204 * SKIP_TEST_<CMD>=1 SKIP_TEST_ZEROFREE=1 (skips all zerofree tests)
206 type tests = (test_init * test_prereq * test) list
208 (* Run the command sequence and just expect nothing to fail. *)
210 (* Run the command sequence and expect the output of the final
211 * command to be the string.
213 | TestOutput of seq * string
214 (* Run the command sequence and expect the output of the final
215 * command to be the list of strings.
217 | TestOutputList of seq * string list
218 (* Run the command sequence and expect the output of the final
219 * command to be the list of block devices (could be either
220 * "/dev/sd.." or "/dev/hd.." form - we don't check the 5th
221 * character of each string).
223 | TestOutputListOfDevices of seq * string list
224 (* Run the command sequence and expect the output of the final
225 * command to be the integer.
227 | TestOutputInt of seq * int
228 (* Run the command sequence and expect the output of the final
229 * command to be <op> <int>, eg. ">=", "1".
231 | TestOutputIntOp of seq * string * int
232 (* Run the command sequence and expect the output of the final
233 * command to be a true value (!= 0 or != NULL).
235 | TestOutputTrue of seq
236 (* Run the command sequence and expect the output of the final
237 * command to be a false value (== 0 or == NULL, but not an error).
239 | TestOutputFalse of seq
240 (* Run the command sequence and expect the output of the final
241 * command to be a list of the given length (but don't care about
244 | TestOutputLength of seq * int
245 (* Run the command sequence and expect the output of the final
246 * command to be a buffer (RBufferOut), ie. string + size.
248 | TestOutputBuffer of seq * string
249 (* Run the command sequence and expect the output of the final
250 * command to be a structure.
252 | TestOutputStruct of seq * test_field_compare list
253 (* Run the command sequence and expect the final command (only)
256 | TestLastFail of seq
258 and test_field_compare =
259 | CompareWithInt of string * int
260 | CompareWithIntOp of string * string * int
261 | CompareWithString of string * string
262 | CompareFieldsIntEq of string * string
263 | CompareFieldsStrEq of string * string
265 (* Test prerequisites. *)
267 (* Test always runs. *)
269 (* Test is currently disabled - eg. it fails, or it tests some
270 * unimplemented feature.
273 (* 'string' is some C code (a function body) that should return
274 * true or false. The test will run if the code returns true.
277 (* As for 'If' but the test runs _unless_ the code returns true. *)
280 (* Some initial scenarios for testing. *)
282 (* Do nothing, block devices could contain random stuff including
283 * LVM PVs, and some filesystems might be mounted. This is usually
288 (* Block devices are empty and no filesystems are mounted. *)
291 (* /dev/sda contains a single partition /dev/sda1, which is formatted
292 * as ext2, empty [except for lost+found] and mounted on /.
293 * /dev/sdb and /dev/sdc may have random content.
299 * /dev/sda1 (is a PV):
300 * /dev/VG/LV (size 8MB):
301 * formatted as ext2, empty [except for lost+found], mounted on /
302 * /dev/sdb and /dev/sdc may have random content.
306 (* /dev/sdd (the squashfs, see images/ directory in source)
311 (* Sequence of commands for testing. *)
313 and cmd = string list
315 (* Note about long descriptions: When referring to another
316 * action, use the format C<guestfs_other> (ie. the full name of
317 * the C function). This will be replaced as appropriate in other
320 * Apart from that, long descriptions are just perldoc paragraphs.
323 (* These test functions are used in the language binding tests. *)
325 let test_all_args = [
328 StringList "strlist";
335 let test_all_rets = [
336 (* except for RErr, which is tested thoroughly elsewhere *)
337 "test0rint", RInt "valout";
338 "test0rint64", RInt64 "valout";
339 "test0rbool", RBool "valout";
340 "test0rconststring", RConstString "valout";
341 "test0rconstoptstring", RConstOptString "valout";
342 "test0rstring", RString "valout";
343 "test0rstringlist", RStringList "valout";
344 "test0rstruct", RStruct ("valout", "lvm_pv");
345 "test0rstructlist", RStructList ("valout", "lvm_pv");
346 "test0rhashtable", RHashtable "valout";
349 let test_functions = [
350 ("test0", (RErr, test_all_args), -1, [NotInFish; NotInDocs],
352 "internal test function - do not use",
354 This is an internal test function which is used to test whether
355 the automatically generated bindings can handle every possible
356 parameter type correctly.
358 It echos the contents of each parameter to stdout.
360 You probably don't want to call this function.");
364 [(name, (ret, [String "val"]), -1, [NotInFish; NotInDocs],
366 "internal test function - do not use",
368 This is an internal test function which is used to test whether
369 the automatically generated bindings can handle every possible
370 return type correctly.
372 It converts string C<val> to the return type.
374 You probably don't want to call this function.");
375 (name ^ "err", (ret, []), -1, [NotInFish; NotInDocs],
377 "internal test function - do not use",
379 This is an internal test function which is used to test whether
380 the automatically generated bindings can handle every possible
381 return type correctly.
383 This function always returns an error.
385 You probably don't want to call this function.")]
389 (* non_daemon_functions are any functions which don't get processed
390 * in the daemon, eg. functions for setting and getting local
391 * configuration values.
394 let non_daemon_functions = test_functions @ [
395 ("launch", (RErr, []), -1, [FishAlias "run"; FishAction "launch"],
397 "launch the qemu subprocess",
399 Internally libguestfs is implemented by running a virtual machine
402 You should call this after configuring the handle
403 (eg. adding drives) but before performing any actions.");
405 ("wait_ready", (RErr, []), -1, [NotInFish],
407 "wait until the qemu subprocess launches",
409 Internally libguestfs is implemented by running a virtual machine
412 You should call this after C<guestfs_launch> to wait for the launch
415 ("kill_subprocess", (RErr, []), -1, [],
417 "kill the qemu subprocess",
419 This kills the qemu subprocess. You should never need to call this.");
421 ("add_drive", (RErr, [String "filename"]), -1, [FishAlias "add"],
423 "add an image to examine or modify",
425 This function adds a virtual machine disk image C<filename> to the
426 guest. The first time you call this function, the disk appears as IDE
427 disk 0 (C</dev/sda>) in the guest, the second time as C</dev/sdb>, and
430 You don't necessarily need to be root when using libguestfs. However
431 you obviously do need sufficient permissions to access the filename
432 for whatever operations you want to perform (ie. read access if you
433 just want to read the image or write access if you want to modify the
436 This is equivalent to the qemu parameter
437 C<-drive file=filename,cache=off,if=...>.
439 Note that this call checks for the existence of C<filename>. This
440 stops you from specifying other types of drive which are supported
441 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
442 the general C<guestfs_config> call instead.");
444 ("add_cdrom", (RErr, [String "filename"]), -1, [FishAlias "cdrom"],
446 "add a CD-ROM disk image to examine",
448 This function adds a virtual CD-ROM disk image to the guest.
450 This is equivalent to the qemu parameter C<-cdrom filename>.
452 Note that this call checks for the existence of C<filename>. This
453 stops you from specifying other types of drive which are supported
454 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
455 the general C<guestfs_config> call instead.");
457 ("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
459 "add a drive in snapshot mode (read-only)",
461 This adds a drive in snapshot mode, making it effectively
464 Note that writes to the device are allowed, and will be seen for
465 the duration of the guestfs handle, but they are written
466 to a temporary file which is discarded as soon as the guestfs
467 handle is closed. We don't currently have any method to enable
468 changes to be committed, although qemu can support this.
470 This is equivalent to the qemu parameter
471 C<-drive file=filename,snapshot=on,if=...>.
473 Note that this call checks for the existence of C<filename>. This
474 stops you from specifying other types of drive which are supported
475 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
476 the general C<guestfs_config> call instead.");
478 ("config", (RErr, [String "qemuparam"; OptString "qemuvalue"]), -1, [],
480 "add qemu parameters",
482 This can be used to add arbitrary qemu command line parameters
483 of the form C<-param value>. Actually it's not quite arbitrary - we
484 prevent you from setting some parameters which would interfere with
485 parameters that we use.
487 The first character of C<param> string must be a C<-> (dash).
489 C<value> can be NULL.");
491 ("set_qemu", (RErr, [String "qemu"]), -1, [FishAlias "qemu"],
493 "set the qemu binary",
495 Set the qemu binary that we will use.
497 The default is chosen when the library was compiled by the
500 You can also override this by setting the C<LIBGUESTFS_QEMU>
501 environment variable.
503 Setting C<qemu> to C<NULL> restores the default qemu binary.");
505 ("get_qemu", (RConstString "qemu", []), -1, [],
506 [InitNone, Always, TestRun (
508 "get the qemu binary",
510 Return the current qemu binary.
512 This is always non-NULL. If it wasn't set already, then this will
513 return the default qemu binary name.");
515 ("set_path", (RErr, [String "path"]), -1, [FishAlias "path"],
517 "set the search path",
519 Set the path that libguestfs searches for kernel and initrd.img.
521 The default is C<$libdir/guestfs> unless overridden by setting
522 C<LIBGUESTFS_PATH> environment variable.
524 Setting C<path> to C<NULL> restores the default path.");
526 ("get_path", (RConstString "path", []), -1, [],
527 [InitNone, Always, TestRun (
529 "get the search path",
531 Return the current search path.
533 This is always non-NULL. If it wasn't set already, then this will
534 return the default path.");
536 ("set_append", (RErr, [OptString "append"]), -1, [FishAlias "append"],
538 "add options to kernel command line",
540 This function is used to add additional options to the
541 guest kernel command line.
543 The default is C<NULL> unless overridden by setting
544 C<LIBGUESTFS_APPEND> environment variable.
546 Setting C<append> to C<NULL> means I<no> additional options
547 are passed (libguestfs always adds a few of its own).");
549 ("get_append", (RConstOptString "append", []), -1, [],
550 (* This cannot be tested with the current framework. The
551 * function can return NULL in normal operations, which the
552 * test framework interprets as an error.
555 "get the additional kernel options",
557 Return the additional kernel options which are added to the
558 guest kernel command line.
560 If C<NULL> then no options are added.");
562 ("set_autosync", (RErr, [Bool "autosync"]), -1, [FishAlias "autosync"],
566 If C<autosync> is true, this enables autosync. Libguestfs will make a
567 best effort attempt to run C<guestfs_umount_all> followed by
568 C<guestfs_sync> when the handle is closed
569 (also if the program exits without closing handles).
571 This is disabled by default (except in guestfish where it is
572 enabled by default).");
574 ("get_autosync", (RBool "autosync", []), -1, [],
575 [InitNone, Always, TestRun (
576 [["get_autosync"]])],
579 Get the autosync flag.");
581 ("set_verbose", (RErr, [Bool "verbose"]), -1, [FishAlias "verbose"],
585 If C<verbose> is true, this turns on verbose messages (to C<stderr>).
587 Verbose messages are disabled unless the environment variable
588 C<LIBGUESTFS_DEBUG> is defined and set to C<1>.");
590 ("get_verbose", (RBool "verbose", []), -1, [],
594 This returns the verbose messages flag.");
596 ("is_ready", (RBool "ready", []), -1, [],
597 [InitNone, Always, TestOutputTrue (
599 "is ready to accept commands",
601 This returns true iff this handle is ready to accept commands
602 (in the C<READY> state).
604 For more information on states, see L<guestfs(3)>.");
606 ("is_config", (RBool "config", []), -1, [],
607 [InitNone, Always, TestOutputFalse (
609 "is in configuration state",
611 This returns true iff this handle is being configured
612 (in the C<CONFIG> state).
614 For more information on states, see L<guestfs(3)>.");
616 ("is_launching", (RBool "launching", []), -1, [],
617 [InitNone, Always, TestOutputFalse (
618 [["is_launching"]])],
619 "is launching subprocess",
621 This returns true iff this handle is launching the subprocess
622 (in the C<LAUNCHING> state).
624 For more information on states, see L<guestfs(3)>.");
626 ("is_busy", (RBool "busy", []), -1, [],
627 [InitNone, Always, TestOutputFalse (
629 "is busy processing a command",
631 This returns true iff this handle is busy processing a command
632 (in the C<BUSY> state).
634 For more information on states, see L<guestfs(3)>.");
636 ("get_state", (RInt "state", []), -1, [],
638 "get the current state",
640 This returns the current state as an opaque integer. This is
641 only useful for printing debug and internal error messages.
643 For more information on states, see L<guestfs(3)>.");
645 ("set_busy", (RErr, []), -1, [NotInFish],
649 This sets the state to C<BUSY>. This is only used when implementing
650 actions using the low-level API.
652 For more information on states, see L<guestfs(3)>.");
654 ("set_ready", (RErr, []), -1, [NotInFish],
656 "set state to ready",
658 This sets the state to C<READY>. This is only used when implementing
659 actions using the low-level API.
661 For more information on states, see L<guestfs(3)>.");
663 ("end_busy", (RErr, []), -1, [NotInFish],
665 "leave the busy state",
667 This sets the state to C<READY>, or if in C<CONFIG> then it leaves the
668 state as is. This is only used when implementing
669 actions using the low-level API.
671 For more information on states, see L<guestfs(3)>.");
673 ("set_memsize", (RErr, [Int "memsize"]), -1, [FishAlias "memsize"],
674 [InitNone, Always, TestOutputInt (
675 [["set_memsize"; "500"];
676 ["get_memsize"]], 500)],
677 "set memory allocated to the qemu subprocess",
679 This sets the memory size in megabytes allocated to the
680 qemu subprocess. This only has any effect if called before
683 You can also change this by setting the environment
684 variable C<LIBGUESTFS_MEMSIZE> before the handle is
687 For more information on the architecture of libguestfs,
688 see L<guestfs(3)>.");
690 ("get_memsize", (RInt "memsize", []), -1, [],
691 [InitNone, Always, TestOutputIntOp (
692 [["get_memsize"]], ">=", 256)],
693 "get memory allocated to the qemu subprocess",
695 This gets the memory size in megabytes allocated to the
698 If C<guestfs_set_memsize> was not called
699 on this handle, and if C<LIBGUESTFS_MEMSIZE> was not set,
700 then this returns the compiled-in default value for memsize.
702 For more information on the architecture of libguestfs,
703 see L<guestfs(3)>.");
705 ("get_pid", (RInt "pid", []), -1, [FishAlias "pid"],
706 [InitNone, Always, TestOutputIntOp (
707 [["get_pid"]], ">=", 1)],
708 "get PID of qemu subprocess",
710 Return the process ID of the qemu subprocess. If there is no
711 qemu subprocess, then this will return an error.
713 This is an internal call used for debugging and testing.");
715 ("version", (RStruct ("version", "version"), []), -1, [],
716 [InitNone, Always, TestOutputStruct (
717 [["version"]], [CompareWithInt ("major", 1)])],
718 "get the library version number",
720 Return the libguestfs version number that the program is linked
723 Note that because of dynamic linking this is not necessarily
724 the version of libguestfs that you compiled against. You can
725 compile the program, and then at runtime dynamically link
726 against a completely different C<libguestfs.so> library.
728 This call was added in version C<1.0.58>. In previous
729 versions of libguestfs there was no way to get the version
730 number. From C code you can use ELF weak linking tricks to find out if
731 this symbol exists (if it doesn't, then it's an earlier version).
733 The call returns a structure with four elements. The first
734 three (C<major>, C<minor> and C<release>) are numbers and
735 correspond to the usual version triplet. The fourth element
736 (C<extra>) is a string and is normally empty, but may be
737 used for distro-specific information.
739 To construct the original version string:
740 C<$major.$minor.$release$extra>
742 I<Note:> Don't use this call to test for availability
743 of features. Distro backports makes this unreliable.");
747 (* daemon_functions are any functions which cause some action
748 * to take place in the daemon.
751 let daemon_functions = [
752 ("mount", (RErr, [String "device"; String "mountpoint"]), 1, [],
753 [InitEmpty, Always, TestOutput (
754 [["sfdiskM"; "/dev/sda"; ","];
755 ["mkfs"; "ext2"; "/dev/sda1"];
756 ["mount"; "/dev/sda1"; "/"];
757 ["write_file"; "/new"; "new file contents"; "0"];
758 ["cat"; "/new"]], "new file contents")],
759 "mount a guest disk at a position in the filesystem",
761 Mount a guest disk at a position in the filesystem. Block devices
762 are named C</dev/sda>, C</dev/sdb> and so on, as they were added to
763 the guest. If those block devices contain partitions, they will have
764 the usual names (eg. C</dev/sda1>). Also LVM C</dev/VG/LV>-style
767 The rules are the same as for L<mount(2)>: A filesystem must
768 first be mounted on C</> before others can be mounted. Other
769 filesystems can only be mounted on directories which already
772 The mounted filesystem is writable, if we have sufficient permissions
773 on the underlying device.
775 The filesystem options C<sync> and C<noatime> are set with this
776 call, in order to improve reliability.");
778 ("sync", (RErr, []), 2, [],
779 [ InitEmpty, Always, TestRun [["sync"]]],
780 "sync disks, writes are flushed through to the disk image",
782 This syncs the disk, so that any writes are flushed through to the
783 underlying disk image.
785 You should always call this if you have modified a disk image, before
786 closing the handle.");
788 ("touch", (RErr, [String "path"]), 3, [],
789 [InitBasicFS, Always, TestOutputTrue (
791 ["exists"; "/new"]])],
792 "update file timestamps or create a new file",
794 Touch acts like the L<touch(1)> command. It can be used to
795 update the timestamps on a file, or, if the file does not exist,
796 to create a new zero-length file.");
798 ("cat", (RString "content", [String "path"]), 4, [ProtocolLimitWarning],
799 [InitBasicFS, Always, TestOutput (
800 [["write_file"; "/new"; "new file contents"; "0"];
801 ["cat"; "/new"]], "new file contents")],
802 "list the contents of a file",
804 Return the contents of the file named C<path>.
806 Note that this function cannot correctly handle binary files
807 (specifically, files containing C<\\0> character which is treated
808 as end of string). For those you need to use the C<guestfs_read_file>
809 or C<guestfs_download> functions which have a more complex interface.");
811 ("ll", (RString "listing", [String "directory"]), 5, [],
812 [], (* XXX Tricky to test because it depends on the exact format
813 * of the 'ls -l' command, which changes between F10 and F11.
815 "list the files in a directory (long format)",
817 List the files in C<directory> (relative to the root directory,
818 there is no cwd) in the format of 'ls -la'.
820 This command is mostly useful for interactive sessions. It
821 is I<not> intended that you try to parse the output string.");
823 ("ls", (RStringList "listing", [String "directory"]), 6, [],
824 [InitBasicFS, Always, TestOutputList (
827 ["touch"; "/newest"];
828 ["ls"; "/"]], ["lost+found"; "new"; "newer"; "newest"])],
829 "list the files in a directory",
831 List the files in C<directory> (relative to the root directory,
832 there is no cwd). The '.' and '..' entries are not returned, but
833 hidden files are shown.
835 This command is mostly useful for interactive sessions. Programs
836 should probably use C<guestfs_readdir> instead.");
838 ("list_devices", (RStringList "devices", []), 7, [],
839 [InitEmpty, Always, TestOutputListOfDevices (
840 [["list_devices"]], ["/dev/sda"; "/dev/sdb"; "/dev/sdc"; "/dev/sdd"])],
841 "list the block devices",
843 List all the block devices.
845 The full block device names are returned, eg. C</dev/sda>");
847 ("list_partitions", (RStringList "partitions", []), 8, [],
848 [InitBasicFS, Always, TestOutputListOfDevices (
849 [["list_partitions"]], ["/dev/sda1"]);
850 InitEmpty, Always, TestOutputListOfDevices (
851 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
852 ["list_partitions"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
853 "list the partitions",
855 List all the partitions detected on all block devices.
857 The full partition device names are returned, eg. C</dev/sda1>
859 This does not return logical volumes. For that you will need to
860 call C<guestfs_lvs>.");
862 ("pvs", (RStringList "physvols", []), 9, [],
863 [InitBasicFSonLVM, Always, TestOutputListOfDevices (
864 [["pvs"]], ["/dev/sda1"]);
865 InitEmpty, Always, TestOutputListOfDevices (
866 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
867 ["pvcreate"; "/dev/sda1"];
868 ["pvcreate"; "/dev/sda2"];
869 ["pvcreate"; "/dev/sda3"];
870 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
871 "list the LVM physical volumes (PVs)",
873 List all the physical volumes detected. This is the equivalent
874 of the L<pvs(8)> command.
876 This returns a list of just the device names that contain
877 PVs (eg. C</dev/sda2>).
879 See also C<guestfs_pvs_full>.");
881 ("vgs", (RStringList "volgroups", []), 10, [],
882 [InitBasicFSonLVM, Always, TestOutputList (
884 InitEmpty, Always, TestOutputList (
885 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
886 ["pvcreate"; "/dev/sda1"];
887 ["pvcreate"; "/dev/sda2"];
888 ["pvcreate"; "/dev/sda3"];
889 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
890 ["vgcreate"; "VG2"; "/dev/sda3"];
891 ["vgs"]], ["VG1"; "VG2"])],
892 "list the LVM volume groups (VGs)",
894 List all the volumes groups detected. This is the equivalent
895 of the L<vgs(8)> command.
897 This returns a list of just the volume group names that were
898 detected (eg. C<VolGroup00>).
900 See also C<guestfs_vgs_full>.");
902 ("lvs", (RStringList "logvols", []), 11, [],
903 [InitBasicFSonLVM, Always, TestOutputList (
904 [["lvs"]], ["/dev/VG/LV"]);
905 InitEmpty, Always, TestOutputList (
906 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
907 ["pvcreate"; "/dev/sda1"];
908 ["pvcreate"; "/dev/sda2"];
909 ["pvcreate"; "/dev/sda3"];
910 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
911 ["vgcreate"; "VG2"; "/dev/sda3"];
912 ["lvcreate"; "LV1"; "VG1"; "50"];
913 ["lvcreate"; "LV2"; "VG1"; "50"];
914 ["lvcreate"; "LV3"; "VG2"; "50"];
915 ["lvs"]], ["/dev/VG1/LV1"; "/dev/VG1/LV2"; "/dev/VG2/LV3"])],
916 "list the LVM logical volumes (LVs)",
918 List all the logical volumes detected. This is the equivalent
919 of the L<lvs(8)> command.
921 This returns a list of the logical volume device names
922 (eg. C</dev/VolGroup00/LogVol00>).
924 See also C<guestfs_lvs_full>.");
926 ("pvs_full", (RStructList ("physvols", "lvm_pv"), []), 12, [],
927 [], (* XXX how to test? *)
928 "list the LVM physical volumes (PVs)",
930 List all the physical volumes detected. This is the equivalent
931 of the L<pvs(8)> command. The \"full\" version includes all fields.");
933 ("vgs_full", (RStructList ("volgroups", "lvm_vg"), []), 13, [],
934 [], (* XXX how to test? *)
935 "list the LVM volume groups (VGs)",
937 List all the volumes groups detected. This is the equivalent
938 of the L<vgs(8)> command. The \"full\" version includes all fields.");
940 ("lvs_full", (RStructList ("logvols", "lvm_lv"), []), 14, [],
941 [], (* XXX how to test? *)
942 "list the LVM logical volumes (LVs)",
944 List all the logical volumes detected. This is the equivalent
945 of the L<lvs(8)> command. The \"full\" version includes all fields.");
947 ("read_lines", (RStringList "lines", [String "path"]), 15, [],
948 [InitBasicFS, Always, TestOutputList (
949 [["write_file"; "/new"; "line1\r\nline2\nline3"; "0"];
950 ["read_lines"; "/new"]], ["line1"; "line2"; "line3"]);
951 InitBasicFS, Always, TestOutputList (
952 [["write_file"; "/new"; ""; "0"];
953 ["read_lines"; "/new"]], [])],
954 "read file as lines",
956 Return the contents of the file named C<path>.
958 The file contents are returned as a list of lines. Trailing
959 C<LF> and C<CRLF> character sequences are I<not> returned.
961 Note that this function cannot correctly handle binary files
962 (specifically, files containing C<\\0> character which is treated
963 as end of line). For those you need to use the C<guestfs_read_file>
964 function which has a more complex interface.");
966 ("aug_init", (RErr, [String "root"; Int "flags"]), 16, [],
967 [], (* XXX Augeas code needs tests. *)
968 "create a new Augeas handle",
970 Create a new Augeas handle for editing configuration files.
971 If there was any previous Augeas handle associated with this
972 guestfs session, then it is closed.
974 You must call this before using any other C<guestfs_aug_*>
977 C<root> is the filesystem root. C<root> must not be NULL,
980 The flags are the same as the flags defined in
981 E<lt>augeas.hE<gt>, the logical I<or> of the following
986 =item C<AUG_SAVE_BACKUP> = 1
988 Keep the original file with a C<.augsave> extension.
990 =item C<AUG_SAVE_NEWFILE> = 2
992 Save changes into a file with extension C<.augnew>, and
993 do not overwrite original. Overrides C<AUG_SAVE_BACKUP>.
995 =item C<AUG_TYPE_CHECK> = 4
997 Typecheck lenses (can be expensive).
999 =item C<AUG_NO_STDINC> = 8
1001 Do not use standard load path for modules.
1003 =item C<AUG_SAVE_NOOP> = 16
1005 Make save a no-op, just record what would have been changed.
1007 =item C<AUG_NO_LOAD> = 32
1009 Do not load the tree in C<guestfs_aug_init>.
1013 To close the handle, you can call C<guestfs_aug_close>.
1015 To find out more about Augeas, see L<http://augeas.net/>.");
1017 ("aug_close", (RErr, []), 26, [],
1018 [], (* XXX Augeas code needs tests. *)
1019 "close the current Augeas handle",
1021 Close the current Augeas handle and free up any resources
1022 used by it. After calling this, you have to call
1023 C<guestfs_aug_init> again before you can use any other
1024 Augeas functions.");
1026 ("aug_defvar", (RInt "nrnodes", [String "name"; OptString "expr"]), 17, [],
1027 [], (* XXX Augeas code needs tests. *)
1028 "define an Augeas variable",
1030 Defines an Augeas variable C<name> whose value is the result
1031 of evaluating C<expr>. If C<expr> is NULL, then C<name> is
1034 On success this returns the number of nodes in C<expr>, or
1035 C<0> if C<expr> evaluates to something which is not a nodeset.");
1037 ("aug_defnode", (RStruct ("nrnodescreated", "int_bool"), [String "name"; String "expr"; String "val"]), 18, [],
1038 [], (* XXX Augeas code needs tests. *)
1039 "define an Augeas node",
1041 Defines a variable C<name> whose value is the result of
1044 If C<expr> evaluates to an empty nodeset, a node is created,
1045 equivalent to calling C<guestfs_aug_set> C<expr>, C<value>.
1046 C<name> will be the nodeset containing that single node.
1048 On success this returns a pair containing the
1049 number of nodes in the nodeset, and a boolean flag
1050 if a node was created.");
1052 ("aug_get", (RString "val", [String "path"]), 19, [],
1053 [], (* XXX Augeas code needs tests. *)
1054 "look up the value of an Augeas path",
1056 Look up the value associated with C<path>. If C<path>
1057 matches exactly one node, the C<value> is returned.");
1059 ("aug_set", (RErr, [String "path"; String "val"]), 20, [],
1060 [], (* XXX Augeas code needs tests. *)
1061 "set Augeas path to value",
1063 Set the value associated with C<path> to C<value>.");
1065 ("aug_insert", (RErr, [String "path"; String "label"; Bool "before"]), 21, [],
1066 [], (* XXX Augeas code needs tests. *)
1067 "insert a sibling Augeas node",
1069 Create a new sibling C<label> for C<path>, inserting it into
1070 the tree before or after C<path> (depending on the boolean
1073 C<path> must match exactly one existing node in the tree, and
1074 C<label> must be a label, ie. not contain C</>, C<*> or end
1075 with a bracketed index C<[N]>.");
1077 ("aug_rm", (RInt "nrnodes", [String "path"]), 22, [],
1078 [], (* XXX Augeas code needs tests. *)
1079 "remove an Augeas path",
1081 Remove C<path> and all of its children.
1083 On success this returns the number of entries which were removed.");
1085 ("aug_mv", (RErr, [String "src"; String "dest"]), 23, [],
1086 [], (* XXX Augeas code needs tests. *)
1089 Move the node C<src> to C<dest>. C<src> must match exactly
1090 one node. C<dest> is overwritten if it exists.");
1092 ("aug_match", (RStringList "matches", [String "path"]), 24, [],
1093 [], (* XXX Augeas code needs tests. *)
1094 "return Augeas nodes which match path",
1096 Returns a list of paths which match the path expression C<path>.
1097 The returned paths are sufficiently qualified so that they match
1098 exactly one node in the current tree.");
1100 ("aug_save", (RErr, []), 25, [],
1101 [], (* XXX Augeas code needs tests. *)
1102 "write all pending Augeas changes to disk",
1104 This writes all pending changes to disk.
1106 The flags which were passed to C<guestfs_aug_init> affect exactly
1107 how files are saved.");
1109 ("aug_load", (RErr, []), 27, [],
1110 [], (* XXX Augeas code needs tests. *)
1111 "load files into the tree",
1113 Load files into the tree.
1115 See C<aug_load> in the Augeas documentation for the full gory
1118 ("aug_ls", (RStringList "matches", [String "path"]), 28, [],
1119 [], (* XXX Augeas code needs tests. *)
1120 "list Augeas nodes under a path",
1122 This is just a shortcut for listing C<guestfs_aug_match>
1123 C<path/*> and sorting the resulting nodes into alphabetical order.");
1125 ("rm", (RErr, [String "path"]), 29, [],
1126 [InitBasicFS, Always, TestRun
1129 InitBasicFS, Always, TestLastFail
1131 InitBasicFS, Always, TestLastFail
1136 Remove the single file C<path>.");
1138 ("rmdir", (RErr, [String "path"]), 30, [],
1139 [InitBasicFS, Always, TestRun
1142 InitBasicFS, Always, TestLastFail
1143 [["rmdir"; "/new"]];
1144 InitBasicFS, Always, TestLastFail
1146 ["rmdir"; "/new"]]],
1147 "remove a directory",
1149 Remove the single directory C<path>.");
1151 ("rm_rf", (RErr, [String "path"]), 31, [],
1152 [InitBasicFS, Always, TestOutputFalse
1154 ["mkdir"; "/new/foo"];
1155 ["touch"; "/new/foo/bar"];
1157 ["exists"; "/new"]]],
1158 "remove a file or directory recursively",
1160 Remove the file or directory C<path>, recursively removing the
1161 contents if its a directory. This is like the C<rm -rf> shell
1164 ("mkdir", (RErr, [String "path"]), 32, [],
1165 [InitBasicFS, Always, TestOutputTrue
1167 ["is_dir"; "/new"]];
1168 InitBasicFS, Always, TestLastFail
1169 [["mkdir"; "/new/foo/bar"]]],
1170 "create a directory",
1172 Create a directory named C<path>.");
1174 ("mkdir_p", (RErr, [String "path"]), 33, [],
1175 [InitBasicFS, Always, TestOutputTrue
1176 [["mkdir_p"; "/new/foo/bar"];
1177 ["is_dir"; "/new/foo/bar"]];
1178 InitBasicFS, Always, TestOutputTrue
1179 [["mkdir_p"; "/new/foo/bar"];
1180 ["is_dir"; "/new/foo"]];
1181 InitBasicFS, Always, TestOutputTrue
1182 [["mkdir_p"; "/new/foo/bar"];
1183 ["is_dir"; "/new"]];
1184 (* Regression tests for RHBZ#503133: *)
1185 InitBasicFS, Always, TestRun
1187 ["mkdir_p"; "/new"]];
1188 InitBasicFS, Always, TestLastFail
1190 ["mkdir_p"; "/new"]]],
1191 "create a directory and parents",
1193 Create a directory named C<path>, creating any parent directories
1194 as necessary. This is like the C<mkdir -p> shell command.");
1196 ("chmod", (RErr, [Int "mode"; String "path"]), 34, [],
1197 [], (* XXX Need stat command to test *)
1200 Change the mode (permissions) of C<path> to C<mode>. Only
1201 numeric modes are supported.");
1203 ("chown", (RErr, [Int "owner"; Int "group"; String "path"]), 35, [],
1204 [], (* XXX Need stat command to test *)
1205 "change file owner and group",
1207 Change the file owner to C<owner> and group to C<group>.
1209 Only numeric uid and gid are supported. If you want to use
1210 names, you will need to locate and parse the password file
1211 yourself (Augeas support makes this relatively easy).");
1213 ("exists", (RBool "existsflag", [String "path"]), 36, [],
1214 [InitBasicFS, Always, TestOutputTrue (
1216 ["exists"; "/new"]]);
1217 InitBasicFS, Always, TestOutputTrue (
1219 ["exists"; "/new"]])],
1220 "test if file or directory exists",
1222 This returns C<true> if and only if there is a file, directory
1223 (or anything) with the given C<path> name.
1225 See also C<guestfs_is_file>, C<guestfs_is_dir>, C<guestfs_stat>.");
1227 ("is_file", (RBool "fileflag", [String "path"]), 37, [],
1228 [InitBasicFS, Always, TestOutputTrue (
1230 ["is_file"; "/new"]]);
1231 InitBasicFS, Always, TestOutputFalse (
1233 ["is_file"; "/new"]])],
1234 "test if file exists",
1236 This returns C<true> if and only if there is a file
1237 with the given C<path> name. Note that it returns false for
1238 other objects like directories.
1240 See also C<guestfs_stat>.");
1242 ("is_dir", (RBool "dirflag", [String "path"]), 38, [],
1243 [InitBasicFS, Always, TestOutputFalse (
1245 ["is_dir"; "/new"]]);
1246 InitBasicFS, Always, TestOutputTrue (
1248 ["is_dir"; "/new"]])],
1249 "test if file exists",
1251 This returns C<true> if and only if there is a directory
1252 with the given C<path> name. Note that it returns false for
1253 other objects like files.
1255 See also C<guestfs_stat>.");
1257 ("pvcreate", (RErr, [String "device"]), 39, [],
1258 [InitEmpty, Always, TestOutputListOfDevices (
1259 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1260 ["pvcreate"; "/dev/sda1"];
1261 ["pvcreate"; "/dev/sda2"];
1262 ["pvcreate"; "/dev/sda3"];
1263 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1264 "create an LVM physical volume",
1266 This creates an LVM physical volume on the named C<device>,
1267 where C<device> should usually be a partition name such
1270 ("vgcreate", (RErr, [String "volgroup"; StringList "physvols"]), 40, [],
1271 [InitEmpty, Always, TestOutputList (
1272 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1273 ["pvcreate"; "/dev/sda1"];
1274 ["pvcreate"; "/dev/sda2"];
1275 ["pvcreate"; "/dev/sda3"];
1276 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1277 ["vgcreate"; "VG2"; "/dev/sda3"];
1278 ["vgs"]], ["VG1"; "VG2"])],
1279 "create an LVM volume group",
1281 This creates an LVM volume group called C<volgroup>
1282 from the non-empty list of physical volumes C<physvols>.");
1284 ("lvcreate", (RErr, [String "logvol"; String "volgroup"; Int "mbytes"]), 41, [],
1285 [InitEmpty, Always, TestOutputList (
1286 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1287 ["pvcreate"; "/dev/sda1"];
1288 ["pvcreate"; "/dev/sda2"];
1289 ["pvcreate"; "/dev/sda3"];
1290 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1291 ["vgcreate"; "VG2"; "/dev/sda3"];
1292 ["lvcreate"; "LV1"; "VG1"; "50"];
1293 ["lvcreate"; "LV2"; "VG1"; "50"];
1294 ["lvcreate"; "LV3"; "VG2"; "50"];
1295 ["lvcreate"; "LV4"; "VG2"; "50"];
1296 ["lvcreate"; "LV5"; "VG2"; "50"];
1298 ["/dev/VG1/LV1"; "/dev/VG1/LV2";
1299 "/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
1300 "create an LVM volume group",
1302 This creates an LVM volume group called C<logvol>
1303 on the volume group C<volgroup>, with C<size> megabytes.");
1305 ("mkfs", (RErr, [String "fstype"; String "device"]), 42, [],
1306 [InitEmpty, Always, TestOutput (
1307 [["sfdiskM"; "/dev/sda"; ","];
1308 ["mkfs"; "ext2"; "/dev/sda1"];
1309 ["mount"; "/dev/sda1"; "/"];
1310 ["write_file"; "/new"; "new file contents"; "0"];
1311 ["cat"; "/new"]], "new file contents")],
1312 "make a filesystem",
1314 This creates a filesystem on C<device> (usually a partition
1315 or LVM logical volume). The filesystem type is C<fstype>, for
1318 ("sfdisk", (RErr, [String "device";
1319 Int "cyls"; Int "heads"; Int "sectors";
1320 StringList "lines"]), 43, [DangerWillRobinson],
1322 "create partitions on a block device",
1324 This is a direct interface to the L<sfdisk(8)> program for creating
1325 partitions on block devices.
1327 C<device> should be a block device, for example C</dev/sda>.
1329 C<cyls>, C<heads> and C<sectors> are the number of cylinders, heads
1330 and sectors on the device, which are passed directly to sfdisk as
1331 the I<-C>, I<-H> and I<-S> parameters. If you pass C<0> for any
1332 of these, then the corresponding parameter is omitted. Usually for
1333 'large' disks, you can just pass C<0> for these, but for small
1334 (floppy-sized) disks, sfdisk (or rather, the kernel) cannot work
1335 out the right geometry and you will need to tell it.
1337 C<lines> is a list of lines that we feed to C<sfdisk>. For more
1338 information refer to the L<sfdisk(8)> manpage.
1340 To create a single partition occupying the whole disk, you would
1341 pass C<lines> as a single element list, when the single element being
1342 the string C<,> (comma).
1344 See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>");
1346 ("write_file", (RErr, [String "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning],
1347 [InitBasicFS, Always, TestOutput (
1348 [["write_file"; "/new"; "new file contents"; "0"];
1349 ["cat"; "/new"]], "new file contents");
1350 InitBasicFS, Always, TestOutput (
1351 [["write_file"; "/new"; "\nnew file contents\n"; "0"];
1352 ["cat"; "/new"]], "\nnew file contents\n");
1353 InitBasicFS, Always, TestOutput (
1354 [["write_file"; "/new"; "\n\n"; "0"];
1355 ["cat"; "/new"]], "\n\n");
1356 InitBasicFS, Always, TestOutput (
1357 [["write_file"; "/new"; ""; "0"];
1358 ["cat"; "/new"]], "");
1359 InitBasicFS, Always, TestOutput (
1360 [["write_file"; "/new"; "\n\n\n"; "0"];
1361 ["cat"; "/new"]], "\n\n\n");
1362 InitBasicFS, Always, TestOutput (
1363 [["write_file"; "/new"; "\n"; "0"];
1364 ["cat"; "/new"]], "\n")],
1367 This call creates a file called C<path>. The contents of the
1368 file is the string C<content> (which can contain any 8 bit data),
1369 with length C<size>.
1371 As a special case, if C<size> is C<0>
1372 then the length is calculated using C<strlen> (so in this case
1373 the content cannot contain embedded ASCII NULs).
1375 I<NB.> Owing to a bug, writing content containing ASCII NUL
1376 characters does I<not> work, even if the length is specified.
1377 We hope to resolve this bug in a future version. In the meantime
1378 use C<guestfs_upload>.");
1380 ("umount", (RErr, [String "pathordevice"]), 45, [FishAlias "unmount"],
1381 [InitEmpty, Always, TestOutputListOfDevices (
1382 [["sfdiskM"; "/dev/sda"; ","];
1383 ["mkfs"; "ext2"; "/dev/sda1"];
1384 ["mount"; "/dev/sda1"; "/"];
1385 ["mounts"]], ["/dev/sda1"]);
1386 InitEmpty, Always, TestOutputList (
1387 [["sfdiskM"; "/dev/sda"; ","];
1388 ["mkfs"; "ext2"; "/dev/sda1"];
1389 ["mount"; "/dev/sda1"; "/"];
1392 "unmount a filesystem",
1394 This unmounts the given filesystem. The filesystem may be
1395 specified either by its mountpoint (path) or the device which
1396 contains the filesystem.");
1398 ("mounts", (RStringList "devices", []), 46, [],
1399 [InitBasicFS, Always, TestOutputListOfDevices (
1400 [["mounts"]], ["/dev/sda1"])],
1401 "show mounted filesystems",
1403 This returns the list of currently mounted filesystems. It returns
1404 the list of devices (eg. C</dev/sda1>, C</dev/VG/LV>).
1406 Some internal mounts are not shown.
1408 See also: C<guestfs_mountpoints>");
1410 ("umount_all", (RErr, []), 47, [FishAlias "unmount-all"],
1411 [InitBasicFS, Always, TestOutputList (
1414 (* check that umount_all can unmount nested mounts correctly: *)
1415 InitEmpty, Always, TestOutputList (
1416 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1417 ["mkfs"; "ext2"; "/dev/sda1"];
1418 ["mkfs"; "ext2"; "/dev/sda2"];
1419 ["mkfs"; "ext2"; "/dev/sda3"];
1420 ["mount"; "/dev/sda1"; "/"];
1422 ["mount"; "/dev/sda2"; "/mp1"];
1423 ["mkdir"; "/mp1/mp2"];
1424 ["mount"; "/dev/sda3"; "/mp1/mp2"];
1425 ["mkdir"; "/mp1/mp2/mp3"];
1428 "unmount all filesystems",
1430 This unmounts all mounted filesystems.
1432 Some internal mounts are not unmounted by this call.");
1434 ("lvm_remove_all", (RErr, []), 48, [DangerWillRobinson],
1436 "remove all LVM LVs, VGs and PVs",
1438 This command removes all LVM logical volumes, volume groups
1439 and physical volumes.");
1441 ("file", (RString "description", [String "path"]), 49, [],
1442 [InitBasicFS, Always, TestOutput (
1444 ["file"; "/new"]], "empty");
1445 InitBasicFS, Always, TestOutput (
1446 [["write_file"; "/new"; "some content\n"; "0"];
1447 ["file"; "/new"]], "ASCII text");
1448 InitBasicFS, Always, TestLastFail (
1449 [["file"; "/nofile"]])],
1450 "determine file type",
1452 This call uses the standard L<file(1)> command to determine
1453 the type or contents of the file. This also works on devices,
1454 for example to find out whether a partition contains a filesystem.
1456 This call will also transparently look inside various types
1459 The exact command which runs is C<file -zbsL path>. Note in
1460 particular that the filename is not prepended to the output
1461 (the C<-b> option).");
1463 ("command", (RString "output", [StringList "arguments"]), 50, [ProtocolLimitWarning],
1464 [InitBasicFS, Always, TestOutput (
1465 [["upload"; "test-command"; "/test-command"];
1466 ["chmod"; "0o755"; "/test-command"];
1467 ["command"; "/test-command 1"]], "Result1");
1468 InitBasicFS, Always, TestOutput (
1469 [["upload"; "test-command"; "/test-command"];
1470 ["chmod"; "0o755"; "/test-command"];
1471 ["command"; "/test-command 2"]], "Result2\n");
1472 InitBasicFS, Always, TestOutput (
1473 [["upload"; "test-command"; "/test-command"];
1474 ["chmod"; "0o755"; "/test-command"];
1475 ["command"; "/test-command 3"]], "\nResult3");
1476 InitBasicFS, Always, TestOutput (
1477 [["upload"; "test-command"; "/test-command"];
1478 ["chmod"; "0o755"; "/test-command"];
1479 ["command"; "/test-command 4"]], "\nResult4\n");
1480 InitBasicFS, Always, TestOutput (
1481 [["upload"; "test-command"; "/test-command"];
1482 ["chmod"; "0o755"; "/test-command"];
1483 ["command"; "/test-command 5"]], "\nResult5\n\n");
1484 InitBasicFS, Always, TestOutput (
1485 [["upload"; "test-command"; "/test-command"];
1486 ["chmod"; "0o755"; "/test-command"];
1487 ["command"; "/test-command 6"]], "\n\nResult6\n\n");
1488 InitBasicFS, Always, TestOutput (
1489 [["upload"; "test-command"; "/test-command"];
1490 ["chmod"; "0o755"; "/test-command"];
1491 ["command"; "/test-command 7"]], "");
1492 InitBasicFS, Always, TestOutput (
1493 [["upload"; "test-command"; "/test-command"];
1494 ["chmod"; "0o755"; "/test-command"];
1495 ["command"; "/test-command 8"]], "\n");
1496 InitBasicFS, Always, TestOutput (
1497 [["upload"; "test-command"; "/test-command"];
1498 ["chmod"; "0o755"; "/test-command"];
1499 ["command"; "/test-command 9"]], "\n\n");
1500 InitBasicFS, Always, TestOutput (
1501 [["upload"; "test-command"; "/test-command"];
1502 ["chmod"; "0o755"; "/test-command"];
1503 ["command"; "/test-command 10"]], "Result10-1\nResult10-2\n");
1504 InitBasicFS, Always, TestOutput (
1505 [["upload"; "test-command"; "/test-command"];
1506 ["chmod"; "0o755"; "/test-command"];
1507 ["command"; "/test-command 11"]], "Result11-1\nResult11-2");
1508 InitBasicFS, Always, TestLastFail (
1509 [["upload"; "test-command"; "/test-command"];
1510 ["chmod"; "0o755"; "/test-command"];
1511 ["command"; "/test-command"]])],
1512 "run a command from the guest filesystem",
1514 This call runs a command from the guest filesystem. The
1515 filesystem must be mounted, and must contain a compatible
1516 operating system (ie. something Linux, with the same
1517 or compatible processor architecture).
1519 The single parameter is an argv-style list of arguments.
1520 The first element is the name of the program to run.
1521 Subsequent elements are parameters. The list must be
1522 non-empty (ie. must contain a program name). Note that
1523 the command runs directly, and is I<not> invoked via
1524 the shell (see C<guestfs_sh>).
1526 The return value is anything printed to I<stdout> by
1529 If the command returns a non-zero exit status, then
1530 this function returns an error message. The error message
1531 string is the content of I<stderr> from the command.
1533 The C<$PATH> environment variable will contain at least
1534 C</usr/bin> and C</bin>. If you require a program from
1535 another location, you should provide the full path in the
1538 Shared libraries and data files required by the program
1539 must be available on filesystems which are mounted in the
1540 correct places. It is the caller's responsibility to ensure
1541 all filesystems that are needed are mounted at the right
1544 ("command_lines", (RStringList "lines", [StringList "arguments"]), 51, [ProtocolLimitWarning],
1545 [InitBasicFS, Always, TestOutputList (
1546 [["upload"; "test-command"; "/test-command"];
1547 ["chmod"; "0o755"; "/test-command"];
1548 ["command_lines"; "/test-command 1"]], ["Result1"]);
1549 InitBasicFS, Always, TestOutputList (
1550 [["upload"; "test-command"; "/test-command"];
1551 ["chmod"; "0o755"; "/test-command"];
1552 ["command_lines"; "/test-command 2"]], ["Result2"]);
1553 InitBasicFS, Always, TestOutputList (
1554 [["upload"; "test-command"; "/test-command"];
1555 ["chmod"; "0o755"; "/test-command"];
1556 ["command_lines"; "/test-command 3"]], ["";"Result3"]);
1557 InitBasicFS, Always, TestOutputList (
1558 [["upload"; "test-command"; "/test-command"];
1559 ["chmod"; "0o755"; "/test-command"];
1560 ["command_lines"; "/test-command 4"]], ["";"Result4"]);
1561 InitBasicFS, Always, TestOutputList (
1562 [["upload"; "test-command"; "/test-command"];
1563 ["chmod"; "0o755"; "/test-command"];
1564 ["command_lines"; "/test-command 5"]], ["";"Result5";""]);
1565 InitBasicFS, Always, TestOutputList (
1566 [["upload"; "test-command"; "/test-command"];
1567 ["chmod"; "0o755"; "/test-command"];
1568 ["command_lines"; "/test-command 6"]], ["";"";"Result6";""]);
1569 InitBasicFS, Always, TestOutputList (
1570 [["upload"; "test-command"; "/test-command"];
1571 ["chmod"; "0o755"; "/test-command"];
1572 ["command_lines"; "/test-command 7"]], []);
1573 InitBasicFS, Always, TestOutputList (
1574 [["upload"; "test-command"; "/test-command"];
1575 ["chmod"; "0o755"; "/test-command"];
1576 ["command_lines"; "/test-command 8"]], [""]);
1577 InitBasicFS, Always, TestOutputList (
1578 [["upload"; "test-command"; "/test-command"];
1579 ["chmod"; "0o755"; "/test-command"];
1580 ["command_lines"; "/test-command 9"]], ["";""]);
1581 InitBasicFS, Always, TestOutputList (
1582 [["upload"; "test-command"; "/test-command"];
1583 ["chmod"; "0o755"; "/test-command"];
1584 ["command_lines"; "/test-command 10"]], ["Result10-1";"Result10-2"]);
1585 InitBasicFS, Always, TestOutputList (
1586 [["upload"; "test-command"; "/test-command"];
1587 ["chmod"; "0o755"; "/test-command"];
1588 ["command_lines"; "/test-command 11"]], ["Result11-1";"Result11-2"])],
1589 "run a command, returning lines",
1591 This is the same as C<guestfs_command>, but splits the
1592 result into a list of lines.
1594 See also: C<guestfs_sh_lines>");
1596 ("stat", (RStruct ("statbuf", "stat"), [String "path"]), 52, [],
1597 [InitBasicFS, Always, TestOutputStruct (
1599 ["stat"; "/new"]], [CompareWithInt ("size", 0)])],
1600 "get file information",
1602 Returns file information for the given C<path>.
1604 This is the same as the C<stat(2)> system call.");
1606 ("lstat", (RStruct ("statbuf", "stat"), [String "path"]), 53, [],
1607 [InitBasicFS, Always, TestOutputStruct (
1609 ["lstat"; "/new"]], [CompareWithInt ("size", 0)])],
1610 "get file information for a symbolic link",
1612 Returns file information for the given C<path>.
1614 This is the same as C<guestfs_stat> except that if C<path>
1615 is a symbolic link, then the link is stat-ed, not the file it
1618 This is the same as the C<lstat(2)> system call.");
1620 ("statvfs", (RStruct ("statbuf", "statvfs"), [String "path"]), 54, [],
1621 [InitBasicFS, Always, TestOutputStruct (
1622 [["statvfs"; "/"]], [CompareWithInt ("namemax", 255);
1623 CompareWithInt ("bsize", 1024)])],
1624 "get file system statistics",
1626 Returns file system statistics for any mounted file system.
1627 C<path> should be a file or directory in the mounted file system
1628 (typically it is the mount point itself, but it doesn't need to be).
1630 This is the same as the C<statvfs(2)> system call.");
1632 ("tune2fs_l", (RHashtable "superblock", [String "device"]), 55, [],
1634 "get ext2/ext3/ext4 superblock details",
1636 This returns the contents of the ext2, ext3 or ext4 filesystem
1637 superblock on C<device>.
1639 It is the same as running C<tune2fs -l device>. See L<tune2fs(8)>
1640 manpage for more details. The list of fields returned isn't
1641 clearly defined, and depends on both the version of C<tune2fs>
1642 that libguestfs was built against, and the filesystem itself.");
1644 ("blockdev_setro", (RErr, [String "device"]), 56, [],
1645 [InitEmpty, Always, TestOutputTrue (
1646 [["blockdev_setro"; "/dev/sda"];
1647 ["blockdev_getro"; "/dev/sda"]])],
1648 "set block device to read-only",
1650 Sets the block device named C<device> to read-only.
1652 This uses the L<blockdev(8)> command.");
1654 ("blockdev_setrw", (RErr, [String "device"]), 57, [],
1655 [InitEmpty, Always, TestOutputFalse (
1656 [["blockdev_setrw"; "/dev/sda"];
1657 ["blockdev_getro"; "/dev/sda"]])],
1658 "set block device to read-write",
1660 Sets the block device named C<device> to read-write.
1662 This uses the L<blockdev(8)> command.");
1664 ("blockdev_getro", (RBool "ro", [String "device"]), 58, [],
1665 [InitEmpty, Always, TestOutputTrue (
1666 [["blockdev_setro"; "/dev/sda"];
1667 ["blockdev_getro"; "/dev/sda"]])],
1668 "is block device set to read-only",
1670 Returns a boolean indicating if the block device is read-only
1671 (true if read-only, false if not).
1673 This uses the L<blockdev(8)> command.");
1675 ("blockdev_getss", (RInt "sectorsize", [String "device"]), 59, [],
1676 [InitEmpty, Always, TestOutputInt (
1677 [["blockdev_getss"; "/dev/sda"]], 512)],
1678 "get sectorsize of block device",
1680 This returns the size of sectors on a block device.
1681 Usually 512, but can be larger for modern devices.
1683 (Note, this is not the size in sectors, use C<guestfs_blockdev_getsz>
1686 This uses the L<blockdev(8)> command.");
1688 ("blockdev_getbsz", (RInt "blocksize", [String "device"]), 60, [],
1689 [InitEmpty, Always, TestOutputInt (
1690 [["blockdev_getbsz"; "/dev/sda"]], 4096)],
1691 "get blocksize of block device",
1693 This returns the block size of a device.
1695 (Note this is different from both I<size in blocks> and
1696 I<filesystem block size>).
1698 This uses the L<blockdev(8)> command.");
1700 ("blockdev_setbsz", (RErr, [String "device"; Int "blocksize"]), 61, [],
1702 "set blocksize of block device",
1704 This sets the block size of a device.
1706 (Note this is different from both I<size in blocks> and
1707 I<filesystem block size>).
1709 This uses the L<blockdev(8)> command.");
1711 ("blockdev_getsz", (RInt64 "sizeinsectors", [String "device"]), 62, [],
1712 [InitEmpty, Always, TestOutputInt (
1713 [["blockdev_getsz"; "/dev/sda"]], 1024000)],
1714 "get total size of device in 512-byte sectors",
1716 This returns the size of the device in units of 512-byte sectors
1717 (even if the sectorsize isn't 512 bytes ... weird).
1719 See also C<guestfs_blockdev_getss> for the real sector size of
1720 the device, and C<guestfs_blockdev_getsize64> for the more
1721 useful I<size in bytes>.
1723 This uses the L<blockdev(8)> command.");
1725 ("blockdev_getsize64", (RInt64 "sizeinbytes", [String "device"]), 63, [],
1726 [InitEmpty, Always, TestOutputInt (
1727 [["blockdev_getsize64"; "/dev/sda"]], 524288000)],
1728 "get total size of device in bytes",
1730 This returns the size of the device in bytes.
1732 See also C<guestfs_blockdev_getsz>.
1734 This uses the L<blockdev(8)> command.");
1736 ("blockdev_flushbufs", (RErr, [String "device"]), 64, [],
1737 [InitEmpty, Always, TestRun
1738 [["blockdev_flushbufs"; "/dev/sda"]]],
1739 "flush device buffers",
1741 This tells the kernel to flush internal buffers associated
1744 This uses the L<blockdev(8)> command.");
1746 ("blockdev_rereadpt", (RErr, [String "device"]), 65, [],
1747 [InitEmpty, Always, TestRun
1748 [["blockdev_rereadpt"; "/dev/sda"]]],
1749 "reread partition table",
1751 Reread the partition table on C<device>.
1753 This uses the L<blockdev(8)> command.");
1755 ("upload", (RErr, [FileIn "filename"; String "remotefilename"]), 66, [],
1756 [InitBasicFS, Always, TestOutput (
1757 (* Pick a file from cwd which isn't likely to change. *)
1758 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1759 ["checksum"; "md5"; "/COPYING.LIB"]], "e3eda01d9815f8d24aae2dbd89b68b06")],
1760 "upload a file from the local machine",
1762 Upload local file C<filename> to C<remotefilename> on the
1765 C<filename> can also be a named pipe.
1767 See also C<guestfs_download>.");
1769 ("download", (RErr, [String "remotefilename"; FileOut "filename"]), 67, [],
1770 [InitBasicFS, Always, TestOutput (
1771 (* Pick a file from cwd which isn't likely to change. *)
1772 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1773 ["download"; "/COPYING.LIB"; "testdownload.tmp"];
1774 ["upload"; "testdownload.tmp"; "/upload"];
1775 ["checksum"; "md5"; "/upload"]], "e3eda01d9815f8d24aae2dbd89b68b06")],
1776 "download a file to the local machine",
1778 Download file C<remotefilename> and save it as C<filename>
1779 on the local machine.
1781 C<filename> can also be a named pipe.
1783 See also C<guestfs_upload>, C<guestfs_cat>.");
1785 ("checksum", (RString "checksum", [String "csumtype"; String "path"]), 68, [],
1786 [InitBasicFS, Always, TestOutput (
1787 [["write_file"; "/new"; "test\n"; "0"];
1788 ["checksum"; "crc"; "/new"]], "935282863");
1789 InitBasicFS, Always, TestLastFail (
1790 [["checksum"; "crc"; "/new"]]);
1791 InitBasicFS, Always, TestOutput (
1792 [["write_file"; "/new"; "test\n"; "0"];
1793 ["checksum"; "md5"; "/new"]], "d8e8fca2dc0f896fd7cb4cb0031ba249");
1794 InitBasicFS, Always, TestOutput (
1795 [["write_file"; "/new"; "test\n"; "0"];
1796 ["checksum"; "sha1"; "/new"]], "4e1243bd22c66e76c2ba9eddc1f91394e57f9f83");
1797 InitBasicFS, Always, TestOutput (
1798 [["write_file"; "/new"; "test\n"; "0"];
1799 ["checksum"; "sha224"; "/new"]], "52f1bf093f4b7588726035c176c0cdb4376cfea53819f1395ac9e6ec");
1800 InitBasicFS, Always, TestOutput (
1801 [["write_file"; "/new"; "test\n"; "0"];
1802 ["checksum"; "sha256"; "/new"]], "f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2");
1803 InitBasicFS, Always, TestOutput (
1804 [["write_file"; "/new"; "test\n"; "0"];
1805 ["checksum"; "sha384"; "/new"]], "109bb6b5b6d5547c1ce03c7a8bd7d8f80c1cb0957f50c4f7fda04692079917e4f9cad52b878f3d8234e1a170b154b72d");
1806 InitBasicFS, Always, TestOutput (
1807 [["write_file"; "/new"; "test\n"; "0"];
1808 ["checksum"; "sha512"; "/new"]], "0e3e75234abc68f4378a86b3f4b32a198ba301845b0cd6e50106e874345700cc6663a86c1ea125dc5e92be17c98f9a0f85ca9d5f595db2012f7cc3571945c123");
1809 InitSquashFS, Always, TestOutput (
1810 [["checksum"; "md5"; "/known-3"]], "46d6ca27ee07cdc6fa99c2e138cc522c")],
1811 "compute MD5, SHAx or CRC checksum of file",
1813 This call computes the MD5, SHAx or CRC checksum of the
1816 The type of checksum to compute is given by the C<csumtype>
1817 parameter which must have one of the following values:
1823 Compute the cyclic redundancy check (CRC) specified by POSIX
1824 for the C<cksum> command.
1828 Compute the MD5 hash (using the C<md5sum> program).
1832 Compute the SHA1 hash (using the C<sha1sum> program).
1836 Compute the SHA224 hash (using the C<sha224sum> program).
1840 Compute the SHA256 hash (using the C<sha256sum> program).
1844 Compute the SHA384 hash (using the C<sha384sum> program).
1848 Compute the SHA512 hash (using the C<sha512sum> program).
1852 The checksum is returned as a printable string.");
1854 ("tar_in", (RErr, [FileIn "tarfile"; String "directory"]), 69, [],
1855 [InitBasicFS, Always, TestOutput (
1856 [["tar_in"; "../images/helloworld.tar"; "/"];
1857 ["cat"; "/hello"]], "hello\n")],
1858 "unpack tarfile to directory",
1860 This command uploads and unpacks local file C<tarfile> (an
1861 I<uncompressed> tar file) into C<directory>.
1863 To upload a compressed tarball, use C<guestfs_tgz_in>.");
1865 ("tar_out", (RErr, [String "directory"; FileOut "tarfile"]), 70, [],
1867 "pack directory into tarfile",
1869 This command packs the contents of C<directory> and downloads
1870 it to local file C<tarfile>.
1872 To download a compressed tarball, use C<guestfs_tgz_out>.");
1874 ("tgz_in", (RErr, [FileIn "tarball"; String "directory"]), 71, [],
1875 [InitBasicFS, Always, TestOutput (
1876 [["tgz_in"; "../images/helloworld.tar.gz"; "/"];
1877 ["cat"; "/hello"]], "hello\n")],
1878 "unpack compressed tarball to directory",
1880 This command uploads and unpacks local file C<tarball> (a
1881 I<gzip compressed> tar file) into C<directory>.
1883 To upload an uncompressed tarball, use C<guestfs_tar_in>.");
1885 ("tgz_out", (RErr, [String "directory"; FileOut "tarball"]), 72, [],
1887 "pack directory into compressed tarball",
1889 This command packs the contents of C<directory> and downloads
1890 it to local file C<tarball>.
1892 To download an uncompressed tarball, use C<guestfs_tar_out>.");
1894 ("mount_ro", (RErr, [String "device"; String "mountpoint"]), 73, [],
1895 [InitBasicFS, Always, TestLastFail (
1897 ["mount_ro"; "/dev/sda1"; "/"];
1898 ["touch"; "/new"]]);
1899 InitBasicFS, Always, TestOutput (
1900 [["write_file"; "/new"; "data"; "0"];
1902 ["mount_ro"; "/dev/sda1"; "/"];
1903 ["cat"; "/new"]], "data")],
1904 "mount a guest disk, read-only",
1906 This is the same as the C<guestfs_mount> command, but it
1907 mounts the filesystem with the read-only (I<-o ro>) flag.");
1909 ("mount_options", (RErr, [String "options"; String "device"; String "mountpoint"]), 74, [],
1911 "mount a guest disk with mount options",
1913 This is the same as the C<guestfs_mount> command, but it
1914 allows you to set the mount options as for the
1915 L<mount(8)> I<-o> flag.");
1917 ("mount_vfs", (RErr, [String "options"; String "vfstype"; String "device"; String "mountpoint"]), 75, [],
1919 "mount a guest disk with mount options and vfstype",
1921 This is the same as the C<guestfs_mount> command, but it
1922 allows you to set both the mount options and the vfstype
1923 as for the L<mount(8)> I<-o> and I<-t> flags.");
1925 ("debug", (RString "result", [String "subcmd"; StringList "extraargs"]), 76, [],
1927 "debugging and internals",
1929 The C<guestfs_debug> command exposes some internals of
1930 C<guestfsd> (the guestfs daemon) that runs inside the
1933 There is no comprehensive help for this command. You have
1934 to look at the file C<daemon/debug.c> in the libguestfs source
1935 to find out what you can do.");
1937 ("lvremove", (RErr, [String "device"]), 77, [],
1938 [InitEmpty, Always, TestOutputList (
1939 [["sfdiskM"; "/dev/sda"; ","];
1940 ["pvcreate"; "/dev/sda1"];
1941 ["vgcreate"; "VG"; "/dev/sda1"];
1942 ["lvcreate"; "LV1"; "VG"; "50"];
1943 ["lvcreate"; "LV2"; "VG"; "50"];
1944 ["lvremove"; "/dev/VG/LV1"];
1945 ["lvs"]], ["/dev/VG/LV2"]);
1946 InitEmpty, Always, TestOutputList (
1947 [["sfdiskM"; "/dev/sda"; ","];
1948 ["pvcreate"; "/dev/sda1"];
1949 ["vgcreate"; "VG"; "/dev/sda1"];
1950 ["lvcreate"; "LV1"; "VG"; "50"];
1951 ["lvcreate"; "LV2"; "VG"; "50"];
1952 ["lvremove"; "/dev/VG"];
1954 InitEmpty, Always, TestOutputList (
1955 [["sfdiskM"; "/dev/sda"; ","];
1956 ["pvcreate"; "/dev/sda1"];
1957 ["vgcreate"; "VG"; "/dev/sda1"];
1958 ["lvcreate"; "LV1"; "VG"; "50"];
1959 ["lvcreate"; "LV2"; "VG"; "50"];
1960 ["lvremove"; "/dev/VG"];
1962 "remove an LVM logical volume",
1964 Remove an LVM logical volume C<device>, where C<device> is
1965 the path to the LV, such as C</dev/VG/LV>.
1967 You can also remove all LVs in a volume group by specifying
1968 the VG name, C</dev/VG>.");
1970 ("vgremove", (RErr, [String "vgname"]), 78, [],
1971 [InitEmpty, Always, TestOutputList (
1972 [["sfdiskM"; "/dev/sda"; ","];
1973 ["pvcreate"; "/dev/sda1"];
1974 ["vgcreate"; "VG"; "/dev/sda1"];
1975 ["lvcreate"; "LV1"; "VG"; "50"];
1976 ["lvcreate"; "LV2"; "VG"; "50"];
1979 InitEmpty, Always, TestOutputList (
1980 [["sfdiskM"; "/dev/sda"; ","];
1981 ["pvcreate"; "/dev/sda1"];
1982 ["vgcreate"; "VG"; "/dev/sda1"];
1983 ["lvcreate"; "LV1"; "VG"; "50"];
1984 ["lvcreate"; "LV2"; "VG"; "50"];
1987 "remove an LVM volume group",
1989 Remove an LVM volume group C<vgname>, (for example C<VG>).
1991 This also forcibly removes all logical volumes in the volume
1994 ("pvremove", (RErr, [String "device"]), 79, [],
1995 [InitEmpty, Always, TestOutputListOfDevices (
1996 [["sfdiskM"; "/dev/sda"; ","];
1997 ["pvcreate"; "/dev/sda1"];
1998 ["vgcreate"; "VG"; "/dev/sda1"];
1999 ["lvcreate"; "LV1"; "VG"; "50"];
2000 ["lvcreate"; "LV2"; "VG"; "50"];
2002 ["pvremove"; "/dev/sda1"];
2004 InitEmpty, Always, TestOutputListOfDevices (
2005 [["sfdiskM"; "/dev/sda"; ","];
2006 ["pvcreate"; "/dev/sda1"];
2007 ["vgcreate"; "VG"; "/dev/sda1"];
2008 ["lvcreate"; "LV1"; "VG"; "50"];
2009 ["lvcreate"; "LV2"; "VG"; "50"];
2011 ["pvremove"; "/dev/sda1"];
2013 InitEmpty, Always, TestOutputListOfDevices (
2014 [["sfdiskM"; "/dev/sda"; ","];
2015 ["pvcreate"; "/dev/sda1"];
2016 ["vgcreate"; "VG"; "/dev/sda1"];
2017 ["lvcreate"; "LV1"; "VG"; "50"];
2018 ["lvcreate"; "LV2"; "VG"; "50"];
2020 ["pvremove"; "/dev/sda1"];
2022 "remove an LVM physical volume",
2024 This wipes a physical volume C<device> so that LVM will no longer
2027 The implementation uses the C<pvremove> command which refuses to
2028 wipe physical volumes that contain any volume groups, so you have
2029 to remove those first.");
2031 ("set_e2label", (RErr, [String "device"; String "label"]), 80, [],
2032 [InitBasicFS, Always, TestOutput (
2033 [["set_e2label"; "/dev/sda1"; "testlabel"];
2034 ["get_e2label"; "/dev/sda1"]], "testlabel")],
2035 "set the ext2/3/4 filesystem label",
2037 This sets the ext2/3/4 filesystem label of the filesystem on
2038 C<device> to C<label>. Filesystem labels are limited to
2041 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
2042 to return the existing label on a filesystem.");
2044 ("get_e2label", (RString "label", [String "device"]), 81, [],
2046 "get the ext2/3/4 filesystem label",
2048 This returns the ext2/3/4 filesystem label of the filesystem on
2051 ("set_e2uuid", (RErr, [String "device"; String "uuid"]), 82, [],
2052 [InitBasicFS, Always, TestOutput (
2053 [["set_e2uuid"; "/dev/sda1"; "a3a61220-882b-4f61-89f4-cf24dcc7297d"];
2054 ["get_e2uuid"; "/dev/sda1"]], "a3a61220-882b-4f61-89f4-cf24dcc7297d");
2055 InitBasicFS, Always, TestOutput (
2056 [["set_e2uuid"; "/dev/sda1"; "clear"];
2057 ["get_e2uuid"; "/dev/sda1"]], "");
2058 (* We can't predict what UUIDs will be, so just check the commands run. *)
2059 InitBasicFS, Always, TestRun (
2060 [["set_e2uuid"; "/dev/sda1"; "random"]]);
2061 InitBasicFS, Always, TestRun (
2062 [["set_e2uuid"; "/dev/sda1"; "time"]])],
2063 "set the ext2/3/4 filesystem UUID",
2065 This sets the ext2/3/4 filesystem UUID of the filesystem on
2066 C<device> to C<uuid>. The format of the UUID and alternatives
2067 such as C<clear>, C<random> and C<time> are described in the
2068 L<tune2fs(8)> manpage.
2070 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
2071 to return the existing UUID of a filesystem.");
2073 ("get_e2uuid", (RString "uuid", [String "device"]), 83, [],
2075 "get the ext2/3/4 filesystem UUID",
2077 This returns the ext2/3/4 filesystem UUID of the filesystem on
2080 ("fsck", (RInt "status", [String "fstype"; String "device"]), 84, [],
2081 [InitBasicFS, Always, TestOutputInt (
2082 [["umount"; "/dev/sda1"];
2083 ["fsck"; "ext2"; "/dev/sda1"]], 0);
2084 InitBasicFS, Always, TestOutputInt (
2085 [["umount"; "/dev/sda1"];
2086 ["zero"; "/dev/sda1"];
2087 ["fsck"; "ext2"; "/dev/sda1"]], 8)],
2088 "run the filesystem checker",
2090 This runs the filesystem checker (fsck) on C<device> which
2091 should have filesystem type C<fstype>.
2093 The returned integer is the status. See L<fsck(8)> for the
2094 list of status codes from C<fsck>.
2102 Multiple status codes can be summed together.
2106 A non-zero return code can mean \"success\", for example if
2107 errors have been corrected on the filesystem.
2111 Checking or repairing NTFS volumes is not supported
2116 This command is entirely equivalent to running C<fsck -a -t fstype device>.");
2118 ("zero", (RErr, [String "device"]), 85, [],
2119 [InitBasicFS, Always, TestOutput (
2120 [["umount"; "/dev/sda1"];
2121 ["zero"; "/dev/sda1"];
2122 ["file"; "/dev/sda1"]], "data")],
2123 "write zeroes to the device",
2125 This command writes zeroes over the first few blocks of C<device>.
2127 How many blocks are zeroed isn't specified (but it's I<not> enough
2128 to securely wipe the device). It should be sufficient to remove
2129 any partition tables, filesystem superblocks and so on.
2131 See also: C<guestfs_scrub_device>.");
2133 ("grub_install", (RErr, [String "root"; String "device"]), 86, [],
2134 (* Test disabled because grub-install incompatible with virtio-blk driver.
2135 * See also: https://bugzilla.redhat.com/show_bug.cgi?id=479760
2137 [InitBasicFS, Disabled, TestOutputTrue (
2138 [["grub_install"; "/"; "/dev/sda1"];
2139 ["is_dir"; "/boot"]])],
2142 This command installs GRUB (the Grand Unified Bootloader) on
2143 C<device>, with the root directory being C<root>.");
2145 ("cp", (RErr, [String "src"; String "dest"]), 87, [],
2146 [InitBasicFS, Always, TestOutput (
2147 [["write_file"; "/old"; "file content"; "0"];
2148 ["cp"; "/old"; "/new"];
2149 ["cat"; "/new"]], "file content");
2150 InitBasicFS, Always, TestOutputTrue (
2151 [["write_file"; "/old"; "file content"; "0"];
2152 ["cp"; "/old"; "/new"];
2153 ["is_file"; "/old"]]);
2154 InitBasicFS, Always, TestOutput (
2155 [["write_file"; "/old"; "file content"; "0"];
2157 ["cp"; "/old"; "/dir/new"];
2158 ["cat"; "/dir/new"]], "file content")],
2161 This copies a file from C<src> to C<dest> where C<dest> is
2162 either a destination filename or destination directory.");
2164 ("cp_a", (RErr, [String "src"; String "dest"]), 88, [],
2165 [InitBasicFS, Always, TestOutput (
2166 [["mkdir"; "/olddir"];
2167 ["mkdir"; "/newdir"];
2168 ["write_file"; "/olddir/file"; "file content"; "0"];
2169 ["cp_a"; "/olddir"; "/newdir"];
2170 ["cat"; "/newdir/olddir/file"]], "file content")],
2171 "copy a file or directory recursively",
2173 This copies a file or directory from C<src> to C<dest>
2174 recursively using the C<cp -a> command.");
2176 ("mv", (RErr, [String "src"; String "dest"]), 89, [],
2177 [InitBasicFS, Always, TestOutput (
2178 [["write_file"; "/old"; "file content"; "0"];
2179 ["mv"; "/old"; "/new"];
2180 ["cat"; "/new"]], "file content");
2181 InitBasicFS, Always, TestOutputFalse (
2182 [["write_file"; "/old"; "file content"; "0"];
2183 ["mv"; "/old"; "/new"];
2184 ["is_file"; "/old"]])],
2187 This moves a file from C<src> to C<dest> where C<dest> is
2188 either a destination filename or destination directory.");
2190 ("drop_caches", (RErr, [Int "whattodrop"]), 90, [],
2191 [InitEmpty, Always, TestRun (
2192 [["drop_caches"; "3"]])],
2193 "drop kernel page cache, dentries and inodes",
2195 This instructs the guest kernel to drop its page cache,
2196 and/or dentries and inode caches. The parameter C<whattodrop>
2197 tells the kernel what precisely to drop, see
2198 L<http://linux-mm.org/Drop_Caches>
2200 Setting C<whattodrop> to 3 should drop everything.
2202 This automatically calls L<sync(2)> before the operation,
2203 so that the maximum guest memory is freed.");
2205 ("dmesg", (RString "kmsgs", []), 91, [],
2206 [InitEmpty, Always, TestRun (
2208 "return kernel messages",
2210 This returns the kernel messages (C<dmesg> output) from
2211 the guest kernel. This is sometimes useful for extended
2212 debugging of problems.
2214 Another way to get the same information is to enable
2215 verbose messages with C<guestfs_set_verbose> or by setting
2216 the environment variable C<LIBGUESTFS_DEBUG=1> before
2217 running the program.");
2219 ("ping_daemon", (RErr, []), 92, [],
2220 [InitEmpty, Always, TestRun (
2221 [["ping_daemon"]])],
2222 "ping the guest daemon",
2224 This is a test probe into the guestfs daemon running inside
2225 the qemu subprocess. Calling this function checks that the
2226 daemon responds to the ping message, without affecting the daemon
2227 or attached block device(s) in any other way.");
2229 ("equal", (RBool "equality", [String "file1"; String "file2"]), 93, [],
2230 [InitBasicFS, Always, TestOutputTrue (
2231 [["write_file"; "/file1"; "contents of a file"; "0"];
2232 ["cp"; "/file1"; "/file2"];
2233 ["equal"; "/file1"; "/file2"]]);
2234 InitBasicFS, Always, TestOutputFalse (
2235 [["write_file"; "/file1"; "contents of a file"; "0"];
2236 ["write_file"; "/file2"; "contents of another file"; "0"];
2237 ["equal"; "/file1"; "/file2"]]);
2238 InitBasicFS, Always, TestLastFail (
2239 [["equal"; "/file1"; "/file2"]])],
2240 "test if two files have equal contents",
2242 This compares the two files C<file1> and C<file2> and returns
2243 true if their content is exactly equal, or false otherwise.
2245 The external L<cmp(1)> program is used for the comparison.");
2247 ("strings", (RStringList "stringsout", [String "path"]), 94, [ProtocolLimitWarning],
2248 [InitBasicFS, Always, TestOutputList (
2249 [["write_file"; "/new"; "hello\nworld\n"; "0"];
2250 ["strings"; "/new"]], ["hello"; "world"]);
2251 InitBasicFS, Always, TestOutputList (
2253 ["strings"; "/new"]], [])],
2254 "print the printable strings in a file",
2256 This runs the L<strings(1)> command on a file and returns
2257 the list of printable strings found.");
2259 ("strings_e", (RStringList "stringsout", [String "encoding"; String "path"]), 95, [ProtocolLimitWarning],
2260 [InitBasicFS, Always, TestOutputList (
2261 [["write_file"; "/new"; "hello\nworld\n"; "0"];
2262 ["strings_e"; "b"; "/new"]], []);
2263 InitBasicFS, Disabled, TestOutputList (
2264 [["write_file"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"; "24"];
2265 ["strings_e"; "b"; "/new"]], ["hello"; "world"])],
2266 "print the printable strings in a file",
2268 This is like the C<guestfs_strings> command, but allows you to
2269 specify the encoding.
2271 See the L<strings(1)> manpage for the full list of encodings.
2273 Commonly useful encodings are C<l> (lower case L) which will
2274 show strings inside Windows/x86 files.
2276 The returned strings are transcoded to UTF-8.");
2278 ("hexdump", (RString "dump", [String "path"]), 96, [ProtocolLimitWarning],
2279 [InitBasicFS, Always, TestOutput (
2280 [["write_file"; "/new"; "hello\nworld\n"; "12"];
2281 ["hexdump"; "/new"]], "00000000 68 65 6c 6c 6f 0a 77 6f 72 6c 64 0a |hello.world.|\n0000000c\n");
2282 (* Test for RHBZ#501888c2 regression which caused large hexdump
2283 * commands to segfault.
2285 InitSquashFS, Always, TestRun (
2286 [["hexdump"; "/100krandom"]])],
2287 "dump a file in hexadecimal",
2289 This runs C<hexdump -C> on the given C<path>. The result is
2290 the human-readable, canonical hex dump of the file.");
2292 ("zerofree", (RErr, [String "device"]), 97, [],
2293 [InitNone, Always, TestOutput (
2294 [["sfdiskM"; "/dev/sda"; ","];
2295 ["mkfs"; "ext3"; "/dev/sda1"];
2296 ["mount"; "/dev/sda1"; "/"];
2297 ["write_file"; "/new"; "test file"; "0"];
2298 ["umount"; "/dev/sda1"];
2299 ["zerofree"; "/dev/sda1"];
2300 ["mount"; "/dev/sda1"; "/"];
2301 ["cat"; "/new"]], "test file")],
2302 "zero unused inodes and disk blocks on ext2/3 filesystem",
2304 This runs the I<zerofree> program on C<device>. This program
2305 claims to zero unused inodes and disk blocks on an ext2/3
2306 filesystem, thus making it possible to compress the filesystem
2309 You should B<not> run this program if the filesystem is
2312 It is possible that using this program can damage the filesystem
2313 or data on the filesystem.");
2315 ("pvresize", (RErr, [String "device"]), 98, [],
2317 "resize an LVM physical volume",
2319 This resizes (expands or shrinks) an existing LVM physical
2320 volume to match the new size of the underlying device.");
2322 ("sfdisk_N", (RErr, [String "device"; Int "partnum";
2323 Int "cyls"; Int "heads"; Int "sectors";
2324 String "line"]), 99, [DangerWillRobinson],
2326 "modify a single partition on a block device",
2328 This runs L<sfdisk(8)> option to modify just the single
2329 partition C<n> (note: C<n> counts from 1).
2331 For other parameters, see C<guestfs_sfdisk>. You should usually
2332 pass C<0> for the cyls/heads/sectors parameters.");
2334 ("sfdisk_l", (RString "partitions", [String "device"]), 100, [],
2336 "display the partition table",
2338 This displays the partition table on C<device>, in the
2339 human-readable output of the L<sfdisk(8)> command. It is
2340 not intended to be parsed.");
2342 ("sfdisk_kernel_geometry", (RString "partitions", [String "device"]), 101, [],
2344 "display the kernel geometry",
2346 This displays the kernel's idea of the geometry of C<device>.
2348 The result is in human-readable format, and not designed to
2351 ("sfdisk_disk_geometry", (RString "partitions", [String "device"]), 102, [],
2353 "display the disk geometry from the partition table",
2355 This displays the disk geometry of C<device> read from the
2356 partition table. Especially in the case where the underlying
2357 block device has been resized, this can be different from the
2358 kernel's idea of the geometry (see C<guestfs_sfdisk_kernel_geometry>).
2360 The result is in human-readable format, and not designed to
2363 ("vg_activate_all", (RErr, [Bool "activate"]), 103, [],
2365 "activate or deactivate all volume groups",
2367 This command activates or (if C<activate> is false) deactivates
2368 all logical volumes in all volume groups.
2369 If activated, then they are made known to the
2370 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2371 then those devices disappear.
2373 This command is the same as running C<vgchange -a y|n>");
2375 ("vg_activate", (RErr, [Bool "activate"; StringList "volgroups"]), 104, [],
2377 "activate or deactivate some volume groups",
2379 This command activates or (if C<activate> is false) deactivates
2380 all logical volumes in the listed volume groups C<volgroups>.
2381 If activated, then they are made known to the
2382 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2383 then those devices disappear.
2385 This command is the same as running C<vgchange -a y|n volgroups...>
2387 Note that if C<volgroups> is an empty list then B<all> volume groups
2388 are activated or deactivated.");
2390 ("lvresize", (RErr, [String "device"; Int "mbytes"]), 105, [],
2391 [InitNone, Always, TestOutput (
2392 [["sfdiskM"; "/dev/sda"; ","];
2393 ["pvcreate"; "/dev/sda1"];
2394 ["vgcreate"; "VG"; "/dev/sda1"];
2395 ["lvcreate"; "LV"; "VG"; "10"];
2396 ["mkfs"; "ext2"; "/dev/VG/LV"];
2397 ["mount"; "/dev/VG/LV"; "/"];
2398 ["write_file"; "/new"; "test content"; "0"];
2400 ["lvresize"; "/dev/VG/LV"; "20"];
2401 ["e2fsck_f"; "/dev/VG/LV"];
2402 ["resize2fs"; "/dev/VG/LV"];
2403 ["mount"; "/dev/VG/LV"; "/"];
2404 ["cat"; "/new"]], "test content")],
2405 "resize an LVM logical volume",
2407 This resizes (expands or shrinks) an existing LVM logical
2408 volume to C<mbytes>. When reducing, data in the reduced part
2411 ("resize2fs", (RErr, [String "device"]), 106, [],
2412 [], (* lvresize tests this *)
2413 "resize an ext2/ext3 filesystem",
2415 This resizes an ext2 or ext3 filesystem to match the size of
2416 the underlying device.
2418 I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
2419 on the C<device> before calling this command. For unknown reasons
2420 C<resize2fs> sometimes gives an error about this and sometimes not.
2421 In any case, it is always safe to call C<guestfs_e2fsck_f> before
2422 calling this function.");
2424 ("find", (RStringList "names", [String "directory"]), 107, [],
2425 [InitBasicFS, Always, TestOutputList (
2426 [["find"; "/"]], ["lost+found"]);
2427 InitBasicFS, Always, TestOutputList (
2431 ["find"; "/"]], ["a"; "b"; "b/c"; "lost+found"]);
2432 InitBasicFS, Always, TestOutputList (
2433 [["mkdir_p"; "/a/b/c"];
2434 ["touch"; "/a/b/c/d"];
2435 ["find"; "/a/b/"]], ["c"; "c/d"])],
2436 "find all files and directories",
2438 This command lists out all files and directories, recursively,
2439 starting at C<directory>. It is essentially equivalent to
2440 running the shell command C<find directory -print> but some
2441 post-processing happens on the output, described below.
2443 This returns a list of strings I<without any prefix>. Thus
2444 if the directory structure was:
2450 then the returned list from C<guestfs_find> C</tmp> would be
2458 If C<directory> is not a directory, then this command returns
2461 The returned list is sorted.");
2463 ("e2fsck_f", (RErr, [String "device"]), 108, [],
2464 [], (* lvresize tests this *)
2465 "check an ext2/ext3 filesystem",
2467 This runs C<e2fsck -p -f device>, ie. runs the ext2/ext3
2468 filesystem checker on C<device>, noninteractively (C<-p>),
2469 even if the filesystem appears to be clean (C<-f>).
2471 This command is only needed because of C<guestfs_resize2fs>
2472 (q.v.). Normally you should use C<guestfs_fsck>.");
2474 ("sleep", (RErr, [Int "secs"]), 109, [],
2475 [InitNone, Always, TestRun (
2477 "sleep for some seconds",
2479 Sleep for C<secs> seconds.");
2481 ("ntfs_3g_probe", (RInt "status", [Bool "rw"; String "device"]), 110, [],
2482 [InitNone, Always, TestOutputInt (
2483 [["sfdiskM"; "/dev/sda"; ","];
2484 ["mkfs"; "ntfs"; "/dev/sda1"];
2485 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 0);
2486 InitNone, Always, TestOutputInt (
2487 [["sfdiskM"; "/dev/sda"; ","];
2488 ["mkfs"; "ext2"; "/dev/sda1"];
2489 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 12)],
2490 "probe NTFS volume",
2492 This command runs the L<ntfs-3g.probe(8)> command which probes
2493 an NTFS C<device> for mountability. (Not all NTFS volumes can
2494 be mounted read-write, and some cannot be mounted at all).
2496 C<rw> is a boolean flag. Set it to true if you want to test
2497 if the volume can be mounted read-write. Set it to false if
2498 you want to test if the volume can be mounted read-only.
2500 The return value is an integer which C<0> if the operation
2501 would succeed, or some non-zero value documented in the
2502 L<ntfs-3g.probe(8)> manual page.");
2504 ("sh", (RString "output", [String "command"]), 111, [],
2505 [], (* XXX needs tests *)
2506 "run a command via the shell",
2508 This call runs a command from the guest filesystem via the
2511 This is like C<guestfs_command>, but passes the command to:
2513 /bin/sh -c \"command\"
2515 Depending on the guest's shell, this usually results in
2516 wildcards being expanded, shell expressions being interpolated
2519 All the provisos about C<guestfs_command> apply to this call.");
2521 ("sh_lines", (RStringList "lines", [String "command"]), 112, [],
2522 [], (* XXX needs tests *)
2523 "run a command via the shell returning lines",
2525 This is the same as C<guestfs_sh>, but splits the result
2526 into a list of lines.
2528 See also: C<guestfs_command_lines>");
2530 ("glob_expand", (RStringList "paths", [String "pattern"]), 113, [],
2531 [InitBasicFS, Always, TestOutputList (
2532 [["mkdir_p"; "/a/b/c"];
2533 ["touch"; "/a/b/c/d"];
2534 ["touch"; "/a/b/c/e"];
2535 ["glob_expand"; "/a/b/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2536 InitBasicFS, Always, TestOutputList (
2537 [["mkdir_p"; "/a/b/c"];
2538 ["touch"; "/a/b/c/d"];
2539 ["touch"; "/a/b/c/e"];
2540 ["glob_expand"; "/a/*/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2541 InitBasicFS, Always, TestOutputList (
2542 [["mkdir_p"; "/a/b/c"];
2543 ["touch"; "/a/b/c/d"];
2544 ["touch"; "/a/b/c/e"];
2545 ["glob_expand"; "/a/*/x/*"]], [])],
2546 "expand a wildcard path",
2548 This command searches for all the pathnames matching
2549 C<pattern> according to the wildcard expansion rules
2552 If no paths match, then this returns an empty list
2553 (note: not an error).
2555 It is just a wrapper around the C L<glob(3)> function
2556 with flags C<GLOB_MARK|GLOB_BRACE>.
2557 See that manual page for more details.");
2559 ("scrub_device", (RErr, [String "device"]), 114, [DangerWillRobinson],
2560 [InitNone, Always, TestRun ( (* use /dev/sdc because it's smaller *)
2561 [["scrub_device"; "/dev/sdc"]])],
2562 "scrub (securely wipe) a device",
2564 This command writes patterns over C<device> to make data retrieval
2567 It is an interface to the L<scrub(1)> program. See that
2568 manual page for more details.");
2570 ("scrub_file", (RErr, [String "file"]), 115, [],
2571 [InitBasicFS, Always, TestRun (
2572 [["write_file"; "/file"; "content"; "0"];
2573 ["scrub_file"; "/file"]])],
2574 "scrub (securely wipe) a file",
2576 This command writes patterns over a file to make data retrieval
2579 The file is I<removed> after scrubbing.
2581 It is an interface to the L<scrub(1)> program. See that
2582 manual page for more details.");
2584 ("scrub_freespace", (RErr, [String "dir"]), 116, [],
2585 [], (* XXX needs testing *)
2586 "scrub (securely wipe) free space",
2588 This command creates the directory C<dir> and then fills it
2589 with files until the filesystem is full, and scrubs the files
2590 as for C<guestfs_scrub_file>, and deletes them.
2591 The intention is to scrub any free space on the partition
2594 It is an interface to the L<scrub(1)> program. See that
2595 manual page for more details.");
2597 ("mkdtemp", (RString "dir", [String "template"]), 117, [],
2598 [InitBasicFS, Always, TestRun (
2600 ["mkdtemp"; "/tmp/tmpXXXXXX"]])],
2601 "create a temporary directory",
2603 This command creates a temporary directory. The
2604 C<template> parameter should be a full pathname for the
2605 temporary directory name with the final six characters being
2608 For example: \"/tmp/myprogXXXXXX\" or \"/Temp/myprogXXXXXX\",
2609 the second one being suitable for Windows filesystems.
2611 The name of the temporary directory that was created
2614 The temporary directory is created with mode 0700
2615 and is owned by root.
2617 The caller is responsible for deleting the temporary
2618 directory and its contents after use.
2620 See also: L<mkdtemp(3)>");
2622 ("wc_l", (RInt "lines", [String "path"]), 118, [],
2623 [InitSquashFS, Always, TestOutputInt (
2624 [["wc_l"; "/10klines"]], 10000)],
2625 "count lines in a file",
2627 This command counts the lines in a file, using the
2628 C<wc -l> external command.");
2630 ("wc_w", (RInt "words", [String "path"]), 119, [],
2631 [InitSquashFS, Always, TestOutputInt (
2632 [["wc_w"; "/10klines"]], 10000)],
2633 "count words in a file",
2635 This command counts the words in a file, using the
2636 C<wc -w> external command.");
2638 ("wc_c", (RInt "chars", [String "path"]), 120, [],
2639 [InitSquashFS, Always, TestOutputInt (
2640 [["wc_c"; "/100kallspaces"]], 102400)],
2641 "count characters in a file",
2643 This command counts the characters in a file, using the
2644 C<wc -c> external command.");
2646 ("head", (RStringList "lines", [String "path"]), 121, [ProtocolLimitWarning],
2647 [InitSquashFS, Always, TestOutputList (
2648 [["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
2649 "return first 10 lines of a file",
2651 This command returns up to the first 10 lines of a file as
2652 a list of strings.");
2654 ("head_n", (RStringList "lines", [Int "nrlines"; String "path"]), 122, [ProtocolLimitWarning],
2655 [InitSquashFS, Always, TestOutputList (
2656 [["head_n"; "3"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2657 InitSquashFS, Always, TestOutputList (
2658 [["head_n"; "-9997"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2659 InitSquashFS, Always, TestOutputList (
2660 [["head_n"; "0"; "/10klines"]], [])],
2661 "return first N lines of a file",
2663 If the parameter C<nrlines> is a positive number, this returns the first
2664 C<nrlines> lines of the file C<path>.
2666 If the parameter C<nrlines> is a negative number, this returns lines
2667 from the file C<path>, excluding the last C<nrlines> lines.
2669 If the parameter C<nrlines> is zero, this returns an empty list.");
2671 ("tail", (RStringList "lines", [String "path"]), 123, [ProtocolLimitWarning],
2672 [InitSquashFS, Always, TestOutputList (
2673 [["tail"; "/10klines"]], ["9990abcdefghijklmnopqrstuvwxyz";"9991abcdefghijklmnopqrstuvwxyz";"9992abcdefghijklmnopqrstuvwxyz";"9993abcdefghijklmnopqrstuvwxyz";"9994abcdefghijklmnopqrstuvwxyz";"9995abcdefghijklmnopqrstuvwxyz";"9996abcdefghijklmnopqrstuvwxyz";"9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"])],
2674 "return last 10 lines of a file",
2676 This command returns up to the last 10 lines of a file as
2677 a list of strings.");
2679 ("tail_n", (RStringList "lines", [Int "nrlines"; String "path"]), 124, [ProtocolLimitWarning],
2680 [InitSquashFS, Always, TestOutputList (
2681 [["tail_n"; "3"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2682 InitSquashFS, Always, TestOutputList (
2683 [["tail_n"; "-9998"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2684 InitSquashFS, Always, TestOutputList (
2685 [["tail_n"; "0"; "/10klines"]], [])],
2686 "return last N lines of a file",
2688 If the parameter C<nrlines> is a positive number, this returns the last
2689 C<nrlines> lines of the file C<path>.
2691 If the parameter C<nrlines> is a negative number, this returns lines
2692 from the file C<path>, starting with the C<-nrlines>th line.
2694 If the parameter C<nrlines> is zero, this returns an empty list.");
2696 ("df", (RString "output", []), 125, [],
2697 [], (* XXX Tricky to test because it depends on the exact format
2698 * of the 'df' command and other imponderables.
2700 "report file system disk space usage",
2702 This command runs the C<df> command to report disk space used.
2704 This command is mostly useful for interactive sessions. It
2705 is I<not> intended that you try to parse the output string.
2706 Use C<statvfs> from programs.");
2708 ("df_h", (RString "output", []), 126, [],
2709 [], (* XXX Tricky to test because it depends on the exact format
2710 * of the 'df' command and other imponderables.
2712 "report file system disk space usage (human readable)",
2714 This command runs the C<df -h> command to report disk space used
2715 in human-readable format.
2717 This command is mostly useful for interactive sessions. It
2718 is I<not> intended that you try to parse the output string.
2719 Use C<statvfs> from programs.");
2721 ("du", (RInt64 "sizekb", [String "path"]), 127, [],
2722 [InitBasicFS, Always, TestOutputInt (
2724 ["du"; "/p"]], 1 (* ie. 1 block, so depends on ext3 blocksize *))],
2725 "estimate file space usage",
2727 This command runs the C<du -s> command to estimate file space
2730 C<path> can be a file or a directory. If C<path> is a directory
2731 then the estimate includes the contents of the directory and all
2732 subdirectories (recursively).
2734 The result is the estimated size in I<kilobytes>
2735 (ie. units of 1024 bytes).");
2737 ("initrd_list", (RStringList "filenames", [String "path"]), 128, [],
2738 [InitSquashFS, Always, TestOutputList (
2739 [["initrd_list"; "/initrd"]], ["empty";"known-1";"known-2";"known-3"])],
2740 "list files in an initrd",
2742 This command lists out files contained in an initrd.
2744 The files are listed without any initial C</> character. The
2745 files are listed in the order they appear (not necessarily
2746 alphabetical). Directory names are listed as separate items.
2748 Old Linux kernels (2.4 and earlier) used a compressed ext2
2749 filesystem as initrd. We I<only> support the newer initramfs
2750 format (compressed cpio files).");
2752 ("mount_loop", (RErr, [String "file"; String "mountpoint"]), 129, [],
2754 "mount a file using the loop device",
2756 This command lets you mount C<file> (a filesystem image
2757 in a file) on a mount point. It is entirely equivalent to
2758 the command C<mount -o loop file mountpoint>.");
2760 ("mkswap", (RErr, [String "device"]), 130, [],
2761 [InitEmpty, Always, TestRun (
2762 [["sfdiskM"; "/dev/sda"; ","];
2763 ["mkswap"; "/dev/sda1"]])],
2764 "create a swap partition",
2766 Create a swap partition on C<device>.");
2768 ("mkswap_L", (RErr, [String "label"; String "device"]), 131, [],
2769 [InitEmpty, Always, TestRun (
2770 [["sfdiskM"; "/dev/sda"; ","];
2771 ["mkswap_L"; "hello"; "/dev/sda1"]])],
2772 "create a swap partition with a label",
2774 Create a swap partition on C<device> with label C<label>.");
2776 ("mkswap_U", (RErr, [String "uuid"; String "device"]), 132, [],
2777 [InitEmpty, Always, TestRun (
2778 [["sfdiskM"; "/dev/sda"; ","];
2779 ["mkswap_U"; "a3a61220-882b-4f61-89f4-cf24dcc7297d"; "/dev/sda1"]])],
2780 "create a swap partition with an explicit UUID",
2782 Create a swap partition on C<device> with UUID C<uuid>.");
2784 ("mknod", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 133, [],
2785 [InitBasicFS, Always, TestOutputStruct (
2786 [["mknod"; "0o10777"; "0"; "0"; "/node"];
2787 (* NB: default umask 022 means 0777 -> 0755 in these tests *)
2788 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)]);
2789 InitBasicFS, Always, TestOutputStruct (
2790 [["mknod"; "0o60777"; "66"; "99"; "/node"];
2791 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2792 "make block, character or FIFO devices",
2794 This call creates block or character special devices, or
2795 named pipes (FIFOs).
2797 The C<mode> parameter should be the mode, using the standard
2798 constants. C<devmajor> and C<devminor> are the
2799 device major and minor numbers, only used when creating block
2800 and character special devices.");
2802 ("mkfifo", (RErr, [Int "mode"; String "path"]), 134, [],
2803 [InitBasicFS, Always, TestOutputStruct (
2804 [["mkfifo"; "0o777"; "/node"];
2805 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)])],
2806 "make FIFO (named pipe)",
2808 This call creates a FIFO (named pipe) called C<path> with
2809 mode C<mode>. It is just a convenient wrapper around
2810 C<guestfs_mknod>.");
2812 ("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 135, [],
2813 [InitBasicFS, Always, TestOutputStruct (
2814 [["mknod_b"; "0o777"; "99"; "66"; "/node"];
2815 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2816 "make block device node",
2818 This call creates a block device node called C<path> with
2819 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
2820 It is just a convenient wrapper around C<guestfs_mknod>.");
2822 ("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 136, [],
2823 [InitBasicFS, Always, TestOutputStruct (
2824 [["mknod_c"; "0o777"; "99"; "66"; "/node"];
2825 ["stat"; "/node"]], [CompareWithInt ("mode", 0o20755)])],
2826 "make char device node",
2828 This call creates a char device node called C<path> with
2829 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
2830 It is just a convenient wrapper around C<guestfs_mknod>.");
2832 ("umask", (RInt "oldmask", [Int "mask"]), 137, [],
2833 [], (* XXX umask is one of those stateful things that we should
2834 * reset between each test.
2836 "set file mode creation mask (umask)",
2838 This function sets the mask used for creating new files and
2839 device nodes to C<mask & 0777>.
2841 Typical umask values would be C<022> which creates new files
2842 with permissions like \"-rw-r--r--\" or \"-rwxr-xr-x\", and
2843 C<002> which creates new files with permissions like
2844 \"-rw-rw-r--\" or \"-rwxrwxr-x\".
2846 The default umask is C<022>. This is important because it
2847 means that directories and device nodes will be created with
2848 C<0644> or C<0755> mode even if you specify C<0777>.
2850 See also L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
2852 This call returns the previous umask.");
2854 ("readdir", (RStructList ("entries", "dirent"), [String "dir"]), 138, [],
2856 "read directories entries",
2858 This returns the list of directory entries in directory C<dir>.
2860 All entries in the directory are returned, including C<.> and
2861 C<..>. The entries are I<not> sorted, but returned in the same
2862 order as the underlying filesystem.
2864 Also this call returns basic file type information about each
2865 file. The C<ftyp> field will contain one of the following characters:
2903 The L<readdir(3)> returned a C<d_type> field with an
2908 This function is primarily intended for use by programs. To
2909 get a simple list of names, use C<guestfs_ls>. To get a printable
2910 directory for human consumption, use C<guestfs_ll>.");
2912 ("sfdiskM", (RErr, [String "device"; StringList "lines"]), 139, [DangerWillRobinson],
2914 "create partitions on a block device",
2916 This is a simplified interface to the C<guestfs_sfdisk>
2917 command, where partition sizes are specified in megabytes
2918 only (rounded to the nearest cylinder) and you don't need
2919 to specify the cyls, heads and sectors parameters which
2920 were rarely if ever used anyway.
2922 See also C<guestfs_sfdisk> and the L<sfdisk(8)> manpage.");
2924 ("zfile", (RString "description", [String "method"; String "path"]), 140, [DeprecatedBy "file"],
2926 "determine file type inside a compressed file",
2928 This command runs C<file> after first decompressing C<path>
2931 C<method> must be one of C<gzip>, C<compress> or C<bzip2>.
2933 Since 1.0.63, use C<guestfs_file> instead which can now
2934 process compressed files.");
2936 ("getxattrs", (RStructList ("xattrs", "xattr"), [String "path"]), 141, [],
2938 "list extended attributes of a file or directory",
2940 This call lists the extended attributes of the file or directory
2943 At the system call level, this is a combination of the
2944 L<listxattr(2)> and L<getxattr(2)> calls.
2946 See also: C<guestfs_lgetxattrs>, L<attr(5)>.");
2948 ("lgetxattrs", (RStructList ("xattrs", "xattr"), [String "path"]), 142, [],
2950 "list extended attributes of a file or directory",
2952 This is the same as C<guestfs_getxattrs>, but if C<path>
2953 is a symbolic link, then it returns the extended attributes
2954 of the link itself.");
2956 ("setxattr", (RErr, [String "xattr";
2957 String "val"; Int "vallen"; (* will be BufferIn *)
2958 String "path"]), 143, [],
2960 "set extended attribute of a file or directory",
2962 This call sets the extended attribute named C<xattr>
2963 of the file C<path> to the value C<val> (of length C<vallen>).
2964 The value is arbitrary 8 bit data.
2966 See also: C<guestfs_lsetxattr>, L<attr(5)>.");
2968 ("lsetxattr", (RErr, [String "xattr";
2969 String "val"; Int "vallen"; (* will be BufferIn *)
2970 String "path"]), 144, [],
2972 "set extended attribute of a file or directory",
2974 This is the same as C<guestfs_setxattr>, but if C<path>
2975 is a symbolic link, then it sets an extended attribute
2976 of the link itself.");
2978 ("removexattr", (RErr, [String "xattr"; String "path"]), 145, [],
2980 "remove extended attribute of a file or directory",
2982 This call removes the extended attribute named C<xattr>
2983 of the file C<path>.
2985 See also: C<guestfs_lremovexattr>, L<attr(5)>.");
2987 ("lremovexattr", (RErr, [String "xattr"; String "path"]), 146, [],
2989 "remove extended attribute of a file or directory",
2991 This is the same as C<guestfs_removexattr>, but if C<path>
2992 is a symbolic link, then it removes an extended attribute
2993 of the link itself.");
2995 ("mountpoints", (RHashtable "mps", []), 147, [],
2999 This call is similar to C<guestfs_mounts>. That call returns
3000 a list of devices. This one returns a hash table (map) of
3001 device name to directory where the device is mounted.");
3003 ("mkmountpoint", (RErr, [String "path"]), 148, [],
3005 "create a mountpoint",
3007 C<guestfs_mkmountpoint> and C<guestfs_rmmountpoint> are
3008 specialized calls that can be used to create extra mountpoints
3009 before mounting the first filesystem.
3011 These calls are I<only> necessary in some very limited circumstances,
3012 mainly the case where you want to mount a mix of unrelated and/or
3013 read-only filesystems together.
3015 For example, live CDs often contain a \"Russian doll\" nest of
3016 filesystems, an ISO outer layer, with a squashfs image inside, with
3017 an ext2/3 image inside that. You can unpack this as follows
3020 add-ro Fedora-11-i686-Live.iso
3023 mkmountpoint /squash
3026 mount-loop /cd/LiveOS/squashfs.img /squash
3027 mount-loop /squash/LiveOS/ext3fs.img /ext3
3029 The inner filesystem is now unpacked under the /ext3 mountpoint.");
3031 ("rmmountpoint", (RErr, [String "path"]), 149, [],
3033 "remove a mountpoint",
3035 This calls removes a mountpoint that was previously created
3036 with C<guestfs_mkmountpoint>. See C<guestfs_mkmountpoint>
3037 for full details.");
3039 ("read_file", (RBufferOut "content", [String "path"]), 150, [ProtocolLimitWarning],
3040 [InitSquashFS, Always, TestOutputBuffer (
3041 [["read_file"; "/known-4"]], "abc\ndef\nghi")],
3044 This calls returns the contents of the file C<path> as a
3047 Unlike C<guestfs_cat>, this function can correctly
3048 handle files that contain embedded ASCII NUL characters.
3049 However unlike C<guestfs_download>, this function is limited
3050 in the total size of file that can be handled.");
3052 ("grep", (RStringList "lines", [String "regex"; String "path"]), 151, [ProtocolLimitWarning],
3053 [InitSquashFS, Always, TestOutputList (
3054 [["grep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"]);
3055 InitSquashFS, Always, TestOutputList (
3056 [["grep"; "nomatch"; "/test-grep.txt"]], [])],
3057 "return lines matching a pattern",
3059 This calls the external C<grep> program and returns the
3062 ("egrep", (RStringList "lines", [String "regex"; String "path"]), 152, [ProtocolLimitWarning],
3063 [InitSquashFS, Always, TestOutputList (
3064 [["egrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3065 "return lines matching a pattern",
3067 This calls the external C<egrep> program and returns the
3070 ("fgrep", (RStringList "lines", [String "pattern"; String "path"]), 153, [ProtocolLimitWarning],
3071 [InitSquashFS, Always, TestOutputList (
3072 [["fgrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3073 "return lines matching a pattern",
3075 This calls the external C<fgrep> program and returns the
3078 ("grepi", (RStringList "lines", [String "regex"; String "path"]), 154, [ProtocolLimitWarning],
3079 [InitSquashFS, Always, TestOutputList (
3080 [["grepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3081 "return lines matching a pattern",
3083 This calls the external C<grep -i> program and returns the
3086 ("egrepi", (RStringList "lines", [String "regex"; String "path"]), 155, [ProtocolLimitWarning],
3087 [InitSquashFS, Always, TestOutputList (
3088 [["egrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3089 "return lines matching a pattern",
3091 This calls the external C<egrep -i> program and returns the
3094 ("fgrepi", (RStringList "lines", [String "pattern"; String "path"]), 156, [ProtocolLimitWarning],
3095 [InitSquashFS, Always, TestOutputList (
3096 [["fgrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3097 "return lines matching a pattern",
3099 This calls the external C<fgrep -i> program and returns the
3102 ("zgrep", (RStringList "lines", [String "regex"; String "path"]), 157, [ProtocolLimitWarning],
3103 [InitSquashFS, Always, TestOutputList (
3104 [["zgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3105 "return lines matching a pattern",
3107 This calls the external C<zgrep> program and returns the
3110 ("zegrep", (RStringList "lines", [String "regex"; String "path"]), 158, [ProtocolLimitWarning],
3111 [InitSquashFS, Always, TestOutputList (
3112 [["zegrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3113 "return lines matching a pattern",
3115 This calls the external C<zegrep> program and returns the
3118 ("zfgrep", (RStringList "lines", [String "pattern"; String "path"]), 159, [ProtocolLimitWarning],
3119 [InitSquashFS, Always, TestOutputList (
3120 [["zfgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3121 "return lines matching a pattern",
3123 This calls the external C<zfgrep> program and returns the
3126 ("zgrepi", (RStringList "lines", [String "regex"; String "path"]), 160, [ProtocolLimitWarning],
3127 [InitSquashFS, Always, TestOutputList (
3128 [["zgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3129 "return lines matching a pattern",
3131 This calls the external C<zgrep -i> program and returns the
3134 ("zegrepi", (RStringList "lines", [String "regex"; String "path"]), 161, [ProtocolLimitWarning],
3135 [InitSquashFS, Always, TestOutputList (
3136 [["zegrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3137 "return lines matching a pattern",
3139 This calls the external C<zegrep -i> program and returns the
3142 ("zfgrepi", (RStringList "lines", [String "pattern"; String "path"]), 162, [ProtocolLimitWarning],
3143 [InitSquashFS, Always, TestOutputList (
3144 [["zfgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3145 "return lines matching a pattern",
3147 This calls the external C<zfgrep -i> program and returns the
3152 let all_functions = non_daemon_functions @ daemon_functions
3154 (* In some places we want the functions to be displayed sorted
3155 * alphabetically, so this is useful:
3157 let all_functions_sorted =
3158 List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
3159 compare n1 n2) all_functions
3161 (* Field types for structures. *)
3163 | FChar (* C 'char' (really, a 7 bit byte). *)
3164 | FString (* nul-terminated ASCII string. *)
3165 | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
3170 | FBytes (* Any int measure that counts bytes. *)
3171 | FUUID (* 32 bytes long, NOT nul-terminated. *)
3172 | FOptPercent (* [0..100], or -1 meaning "not present". *)
3174 (* Because we generate extra parsing code for LVM command line tools,
3175 * we have to pull out the LVM columns separately here.
3185 "pv_attr", FString (* XXX *);
3186 "pv_pe_count", FInt64;
3187 "pv_pe_alloc_count", FInt64;
3190 "pv_mda_count", FInt64;
3191 "pv_mda_free", FBytes;
3192 (* Not in Fedora 10:
3193 "pv_mda_size", FBytes;
3200 "vg_attr", FString (* XXX *);
3203 "vg_sysid", FString;
3204 "vg_extent_size", FBytes;
3205 "vg_extent_count", FInt64;
3206 "vg_free_count", FInt64;
3211 "snap_count", FInt64;
3214 "vg_mda_count", FInt64;
3215 "vg_mda_free", FBytes;
3216 (* Not in Fedora 10:
3217 "vg_mda_size", FBytes;
3223 "lv_attr", FString (* XXX *);
3226 "lv_kernel_major", FInt64;
3227 "lv_kernel_minor", FInt64;
3229 "seg_count", FInt64;
3231 "snap_percent", FOptPercent;
3232 "copy_percent", FOptPercent;
3235 "mirror_log", FString;
3239 (* Names and fields in all structures (in RStruct and RStructList)
3243 (* The old RIntBool return type, only ever used for aug_defnode. Do
3244 * not use this struct in any new code.
3247 "i", FInt32; (* for historical compatibility *)
3248 "b", FInt32; (* for historical compatibility *)
3251 (* LVM PVs, VGs, LVs. *)
3252 "lvm_pv", lvm_pv_cols;
3253 "lvm_vg", lvm_vg_cols;
3254 "lvm_lv", lvm_lv_cols;
3256 (* Column names and types from stat structures.
3257 * NB. Can't use things like 'st_atime' because glibc header files
3258 * define some of these as macros. Ugh.
3289 (* Column names in dirent structure. *)
3292 (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
3297 (* Version numbers. *)
3305 (* Extended attribute. *)
3307 "attrname", FString;
3310 ] (* end of structs *)
3312 (* Ugh, Java has to be different ..
3313 * These names are also used by the Haskell bindings.
3315 let java_structs = [
3316 "int_bool", "IntBool";
3321 "statvfs", "StatVFS";
3323 "version", "Version";
3327 (* Used for testing language bindings. *)
3329 | CallString of string
3330 | CallOptString of string option
3331 | CallStringList of string list
3335 (* Used to memoize the result of pod2text. *)
3336 let pod2text_memo_filename = "src/.pod2text.data"
3337 let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
3339 let chan = open_in pod2text_memo_filename in
3340 let v = input_value chan in
3344 _ -> Hashtbl.create 13
3346 (* Useful functions.
3347 * Note we don't want to use any external OCaml libraries which
3348 * makes this a bit harder than it should be.
3350 let failwithf fs = ksprintf failwith fs
3352 let replace_char s c1 c2 =
3353 let s2 = String.copy s in
3354 let r = ref false in
3355 for i = 0 to String.length s2 - 1 do
3356 if String.unsafe_get s2 i = c1 then (
3357 String.unsafe_set s2 i c2;
3361 if not !r then s else s2
3365 (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
3367 let triml ?(test = isspace) str =
3369 let n = ref (String.length str) in
3370 while !n > 0 && test str.[!i]; do
3375 else String.sub str !i !n
3377 let trimr ?(test = isspace) str =
3378 let n = ref (String.length str) in
3379 while !n > 0 && test str.[!n-1]; do
3382 if !n = String.length str then str
3383 else String.sub str 0 !n
3385 let trim ?(test = isspace) str =
3386 trimr ~test (triml ~test str)
3388 let rec find s sub =
3389 let len = String.length s in
3390 let sublen = String.length sub in
3392 if i <= len-sublen then (
3394 if j < sublen then (
3395 if s.[i+j] = sub.[j] then loop2 (j+1)
3401 if r = -1 then loop (i+1) else r
3407 let rec replace_str s s1 s2 =
3408 let len = String.length s in
3409 let sublen = String.length s1 in
3410 let i = find s s1 in
3413 let s' = String.sub s 0 i in
3414 let s'' = String.sub s (i+sublen) (len-i-sublen) in
3415 s' ^ s2 ^ replace_str s'' s1 s2
3418 let rec string_split sep str =
3419 let len = String.length str in
3420 let seplen = String.length sep in
3421 let i = find str sep in
3422 if i = -1 then [str]
3424 let s' = String.sub str 0 i in
3425 let s'' = String.sub str (i+seplen) (len-i-seplen) in
3426 s' :: string_split sep s''
3429 let files_equal n1 n2 =
3430 let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
3431 match Sys.command cmd with
3434 | i -> failwithf "%s: failed with error code %d" cmd i
3436 let rec find_map f = function
3437 | [] -> raise Not_found
3441 | None -> find_map f xs
3444 let rec loop i = function
3446 | x :: xs -> f i x; loop (i+1) xs
3451 let rec loop i = function
3453 | x :: xs -> let r = f i x in r :: loop (i+1) xs
3457 let name_of_argt = function
3458 | String n | OptString n | StringList n | Bool n | Int n
3459 | FileIn n | FileOut n -> n
3461 let java_name_of_struct typ =
3462 try List.assoc typ java_structs
3465 "java_name_of_struct: no java_structs entry corresponding to %s" typ
3467 let cols_of_struct typ =
3468 try List.assoc typ structs
3470 failwithf "cols_of_struct: unknown struct %s" typ
3472 let seq_of_test = function
3473 | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
3474 | TestOutputListOfDevices (s, _)
3475 | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
3476 | TestOutputTrue s | TestOutputFalse s
3477 | TestOutputLength (s, _) | TestOutputBuffer (s, _)
3478 | TestOutputStruct (s, _)
3479 | TestLastFail s -> s
3481 (* Handling for function flags. *)
3482 let protocol_limit_warning =
3483 "Because of the message protocol, there is a transfer limit
3484 of somewhere between 2MB and 4MB. To transfer large files you should use
3487 let danger_will_robinson =
3488 "B<This command is dangerous. Without careful use you
3489 can easily destroy all your data>."
3491 let deprecation_notice flags =
3494 find_map (function DeprecatedBy str -> Some str | _ -> None) flags in
3496 sprintf "This function is deprecated.
3497 In new code, use the C<%s> call instead.
3499 Deprecated functions will not be removed from the API, but the
3500 fact that they are deprecated indicates that there are problems
3501 with correct use of these functions." alt in
3506 (* Check function names etc. for consistency. *)
3507 let check_functions () =
3508 let contains_uppercase str =
3509 let len = String.length str in
3511 if i >= len then false
3514 if c >= 'A' && c <= 'Z' then true
3521 (* Check function names. *)
3523 fun (name, _, _, _, _, _, _) ->
3524 if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
3525 failwithf "function name %s does not need 'guestfs' prefix" name;
3527 failwithf "function name is empty";
3528 if name.[0] < 'a' || name.[0] > 'z' then
3529 failwithf "function name %s must start with lowercase a-z" name;
3530 if String.contains name '-' then
3531 failwithf "function name %s should not contain '-', use '_' instead."
3535 (* Check function parameter/return names. *)
3537 fun (name, style, _, _, _, _, _) ->
3538 let check_arg_ret_name n =
3539 if contains_uppercase n then
3540 failwithf "%s param/ret %s should not contain uppercase chars"
3542 if String.contains n '-' || String.contains n '_' then
3543 failwithf "%s param/ret %s should not contain '-' or '_'"
3546 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;
3547 if n = "int" || n = "char" || n = "short" || n = "long" then
3548 failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
3549 if n = "i" || n = "n" then
3550 failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
3551 if n = "argv" || n = "args" then
3552 failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name
3555 (match fst style with
3557 | RInt n | RInt64 n | RBool n
3558 | RConstString n | RConstOptString n | RString n
3559 | RStringList n | RStruct (n, _) | RStructList (n, _)
3560 | RHashtable n | RBufferOut n ->
3561 check_arg_ret_name n
3563 List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
3566 (* Check short descriptions. *)
3568 fun (name, _, _, _, _, shortdesc, _) ->
3569 if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
3570 failwithf "short description of %s should begin with lowercase." name;
3571 let c = shortdesc.[String.length shortdesc-1] in
3572 if c = '\n' || c = '.' then
3573 failwithf "short description of %s should not end with . or \\n." name
3576 (* Check long dscriptions. *)
3578 fun (name, _, _, _, _, _, longdesc) ->
3579 if longdesc.[String.length longdesc-1] = '\n' then
3580 failwithf "long description of %s should not end with \\n." name
3583 (* Check proc_nrs. *)
3585 fun (name, _, proc_nr, _, _, _, _) ->
3586 if proc_nr <= 0 then
3587 failwithf "daemon function %s should have proc_nr > 0" name
3591 fun (name, _, proc_nr, _, _, _, _) ->
3592 if proc_nr <> -1 then
3593 failwithf "non-daemon function %s should have proc_nr -1" name
3594 ) non_daemon_functions;
3597 List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
3600 List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
3601 let rec loop = function
3604 | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
3606 | (name1,nr1) :: (name2,nr2) :: _ ->
3607 failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
3615 (* Ignore functions that have no tests. We generate a
3616 * warning when the user does 'make check' instead.
3618 | name, _, _, _, [], _, _ -> ()
3619 | name, _, _, _, tests, _, _ ->
3623 match seq_of_test test with
3625 failwithf "%s has a test containing an empty sequence" name
3626 | cmds -> List.map List.hd cmds
3628 let funcs = List.flatten funcs in
3630 let tested = List.mem name funcs in
3633 failwithf "function %s has tests but does not test itself" name
3636 (* 'pr' prints to the current output file. *)
3637 let chan = ref stdout
3638 let pr fs = ksprintf (output_string !chan) fs
3640 (* Generate a header block in a number of standard styles. *)
3641 type comment_style = CStyle | HashStyle | OCamlStyle | HaskellStyle
3642 type license = GPLv2 | LGPLv2
3644 let generate_header comment license =
3645 let c = match comment with
3646 | CStyle -> pr "/* "; " *"
3647 | HashStyle -> pr "# "; "#"
3648 | OCamlStyle -> pr "(* "; " *"
3649 | HaskellStyle -> pr "{- "; " " in
3650 pr "libguestfs generated file\n";
3651 pr "%s WARNING: THIS FILE IS GENERATED BY 'src/generator.ml'.\n" c;
3652 pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
3654 pr "%s Copyright (C) 2009 Red Hat Inc.\n" c;
3658 pr "%s This program is free software; you can redistribute it and/or modify\n" c;
3659 pr "%s it under the terms of the GNU General Public License as published by\n" c;
3660 pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
3661 pr "%s (at your option) any later version.\n" c;
3663 pr "%s This program is distributed in the hope that it will be useful,\n" c;
3664 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
3665 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
3666 pr "%s GNU General Public License for more details.\n" c;
3668 pr "%s You should have received a copy of the GNU General Public License along\n" c;
3669 pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
3670 pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
3673 pr "%s This library is free software; you can redistribute it and/or\n" c;
3674 pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
3675 pr "%s License as published by the Free Software Foundation; either\n" c;
3676 pr "%s version 2 of the License, or (at your option) any later version.\n" c;
3678 pr "%s This library is distributed in the hope that it will be useful,\n" c;
3679 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
3680 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
3681 pr "%s Lesser General Public License for more details.\n" c;
3683 pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
3684 pr "%s License along with this library; if not, write to the Free Software\n" c;
3685 pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
3688 | CStyle -> pr " */\n"
3690 | OCamlStyle -> pr " *)\n"
3691 | HaskellStyle -> pr "-}\n"
3695 (* Start of main code generation functions below this line. *)
3697 (* Generate the pod documentation for the C API. *)
3698 let rec generate_actions_pod () =
3700 fun (shortname, style, _, flags, _, _, longdesc) ->
3701 if not (List.mem NotInDocs flags) then (
3702 let name = "guestfs_" ^ shortname in
3703 pr "=head2 %s\n\n" name;
3705 generate_prototype ~extern:false ~handle:"handle" name style;
3707 pr "%s\n\n" longdesc;
3708 (match fst style with
3710 pr "This function returns 0 on success or -1 on error.\n\n"
3712 pr "On error this function returns -1.\n\n"
3714 pr "On error this function returns -1.\n\n"
3716 pr "This function returns a C truth value on success or -1 on error.\n\n"
3718 pr "This function returns a string, or NULL on error.
3719 The string is owned by the guest handle and must I<not> be freed.\n\n"
3720 | RConstOptString _ ->
3721 pr "This function returns a string which may be NULL.
3722 There is way to return an error from this function.
3723 The string is owned by the guest handle and must I<not> be freed.\n\n"
3725 pr "This function returns a string, or NULL on error.
3726 I<The caller must free the returned string after use>.\n\n"
3728 pr "This function returns a NULL-terminated array of strings
3729 (like L<environ(3)>), or NULL if there was an error.
3730 I<The caller must free the strings and the array after use>.\n\n"
3731 | RStruct (_, typ) ->
3732 pr "This function returns a C<struct guestfs_%s *>,
3733 or NULL if there was an error.
3734 I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
3735 | RStructList (_, typ) ->
3736 pr "This function returns a C<struct guestfs_%s_list *>
3737 (see E<lt>guestfs-structs.hE<gt>),
3738 or NULL if there was an error.
3739 I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
3741 pr "This function returns a NULL-terminated array of
3742 strings, or NULL if there was an error.
3743 The array of strings will always have length C<2n+1>, where
3744 C<n> keys and values alternate, followed by the trailing NULL entry.
3745 I<The caller must free the strings and the array after use>.\n\n"
3747 pr "This function returns a buffer, or NULL on error.
3748 The size of the returned buffer is written to C<*size_r>.
3749 I<The caller must free the returned buffer after use>.\n\n"
3751 if List.mem ProtocolLimitWarning flags then
3752 pr "%s\n\n" protocol_limit_warning;
3753 if List.mem DangerWillRobinson flags then
3754 pr "%s\n\n" danger_will_robinson;
3755 match deprecation_notice flags with
3757 | Some txt -> pr "%s\n\n" txt
3759 ) all_functions_sorted
3761 and generate_structs_pod () =
3762 (* Structs documentation. *)
3765 pr "=head2 guestfs_%s\n" typ;
3767 pr " struct guestfs_%s {\n" typ;
3770 | name, FChar -> pr " char %s;\n" name
3771 | name, FUInt32 -> pr " uint32_t %s;\n" name
3772 | name, FInt32 -> pr " int32_t %s;\n" name
3773 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
3774 | name, FInt64 -> pr " int64_t %s;\n" name
3775 | name, FString -> pr " char *%s;\n" name
3777 pr " /* The next two fields describe a byte array. */\n";
3778 pr " uint32_t %s_len;\n" name;
3779 pr " char *%s;\n" name
3781 pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
3782 pr " char %s[32];\n" name
3783 | name, FOptPercent ->
3784 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
3785 pr " float %s;\n" name
3789 pr " struct guestfs_%s_list {\n" typ;
3790 pr " uint32_t len; /* Number of elements in list. */\n";
3791 pr " struct guestfs_%s *val; /* Elements. */\n" typ;
3794 pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
3795 pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
3800 (* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
3801 * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
3803 * We have to use an underscore instead of a dash because otherwise
3804 * rpcgen generates incorrect code.
3806 * This header is NOT exported to clients, but see also generate_structs_h.
3808 and generate_xdr () =
3809 generate_header CStyle LGPLv2;
3811 (* This has to be defined to get around a limitation in Sun's rpcgen. *)
3812 pr "typedef string str<>;\n";
3815 (* Internal structures. *)
3819 pr "struct guestfs_int_%s {\n" typ;
3821 | name, FChar -> pr " char %s;\n" name
3822 | name, FString -> pr " string %s<>;\n" name
3823 | name, FBuffer -> pr " opaque %s<>;\n" name
3824 | name, FUUID -> pr " opaque %s[32];\n" name
3825 | name, (FInt32|FUInt32) -> pr " int %s;\n" name
3826 | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
3827 | name, FOptPercent -> pr " float %s;\n" name
3831 pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;
3836 fun (shortname, style, _, _, _, _, _) ->
3837 let name = "guestfs_" ^ shortname in
3839 (match snd style with
3842 pr "struct %s_args {\n" name;
3845 | String n -> pr " string %s<>;\n" n
3846 | OptString n -> pr " str *%s;\n" n
3847 | StringList n -> pr " str %s<>;\n" n
3848 | Bool n -> pr " bool %s;\n" n
3849 | Int n -> pr " int %s;\n" n
3850 | FileIn _ | FileOut _ -> ()
3854 (match fst style with
3857 pr "struct %s_ret {\n" name;
3861 pr "struct %s_ret {\n" name;
3862 pr " hyper %s;\n" n;
3865 pr "struct %s_ret {\n" name;
3868 | RConstString _ | RConstOptString _ ->
3869 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
3871 pr "struct %s_ret {\n" name;
3872 pr " string %s<>;\n" n;
3875 pr "struct %s_ret {\n" name;
3876 pr " str %s<>;\n" n;
3878 | RStruct (n, typ) ->
3879 pr "struct %s_ret {\n" name;
3880 pr " guestfs_int_%s %s;\n" typ n;
3882 | RStructList (n, typ) ->
3883 pr "struct %s_ret {\n" name;
3884 pr " guestfs_int_%s_list %s;\n" typ n;
3887 pr "struct %s_ret {\n" name;
3888 pr " str %s<>;\n" n;
3891 pr "struct %s_ret {\n" name;
3892 pr " opaque %s<>;\n" n;
3897 (* Table of procedure numbers. *)
3898 pr "enum guestfs_procedure {\n";
3900 fun (shortname, _, proc_nr, _, _, _, _) ->
3901 pr " GUESTFS_PROC_%s = %d,\n" (String.uppercase shortname) proc_nr
3903 pr " GUESTFS_PROC_NR_PROCS\n";
3907 (* Having to choose a maximum message size is annoying for several
3908 * reasons (it limits what we can do in the API), but it (a) makes
3909 * the protocol a lot simpler, and (b) provides a bound on the size
3910 * of the daemon which operates in limited memory space. For large
3911 * file transfers you should use FTP.
3913 pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
3916 (* Message header, etc. *)
3918 /* The communication protocol is now documented in the guestfs(3)
3922 const GUESTFS_PROGRAM = 0x2000F5F5;
3923 const GUESTFS_PROTOCOL_VERSION = 1;
3925 /* These constants must be larger than any possible message length. */
3926 const GUESTFS_LAUNCH_FLAG = 0xf5f55ff5;
3927 const GUESTFS_CANCEL_FLAG = 0xffffeeee;
3929 enum guestfs_message_direction {
3930 GUESTFS_DIRECTION_CALL = 0, /* client -> daemon */
3931 GUESTFS_DIRECTION_REPLY = 1 /* daemon -> client */
3934 enum guestfs_message_status {
3935 GUESTFS_STATUS_OK = 0,
3936 GUESTFS_STATUS_ERROR = 1
3939 const GUESTFS_ERROR_LEN = 256;
3941 struct guestfs_message_error {
3942 string error_message<GUESTFS_ERROR_LEN>;
3945 struct guestfs_message_header {
3946 unsigned prog; /* GUESTFS_PROGRAM */
3947 unsigned vers; /* GUESTFS_PROTOCOL_VERSION */
3948 guestfs_procedure proc; /* GUESTFS_PROC_x */
3949 guestfs_message_direction direction;
3950 unsigned serial; /* message serial number */
3951 guestfs_message_status status;
3954 const GUESTFS_MAX_CHUNK_SIZE = 8192;
3956 struct guestfs_chunk {
3957 int cancel; /* if non-zero, transfer is cancelled */
3958 /* data size is 0 bytes if the transfer has finished successfully */
3959 opaque data<GUESTFS_MAX_CHUNK_SIZE>;
3963 (* Generate the guestfs-structs.h file. *)
3964 and generate_structs_h () =
3965 generate_header CStyle LGPLv2;
3967 (* This is a public exported header file containing various
3968 * structures. The structures are carefully written to have
3969 * exactly the same in-memory format as the XDR structures that
3970 * we use on the wire to the daemon. The reason for creating
3971 * copies of these structures here is just so we don't have to
3972 * export the whole of guestfs_protocol.h (which includes much
3973 * unrelated and XDR-dependent stuff that we don't want to be
3974 * public, or required by clients).
3976 * To reiterate, we will pass these structures to and from the
3977 * client with a simple assignment or memcpy, so the format
3978 * must be identical to what rpcgen / the RFC defines.
3981 (* Public structures. *)
3984 pr "struct guestfs_%s {\n" typ;
3987 | name, FChar -> pr " char %s;\n" name
3988 | name, FString -> pr " char *%s;\n" name
3990 pr " uint32_t %s_len;\n" name;
3991 pr " char *%s;\n" name
3992 | name, FUUID -> pr " char %s[32]; /* this is NOT nul-terminated, be careful when printing */\n" name
3993 | name, FUInt32 -> pr " uint32_t %s;\n" name
3994 | name, FInt32 -> pr " int32_t %s;\n" name
3995 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
3996 | name, FInt64 -> pr " int64_t %s;\n" name
3997 | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
4001 pr "struct guestfs_%s_list {\n" typ;
4002 pr " uint32_t len;\n";
4003 pr " struct guestfs_%s *val;\n" typ;
4006 pr "extern void guestfs_free_%s (struct guestfs_%s *);\n" typ typ;
4007 pr "extern void guestfs_free_%s_list (struct guestfs_%s_list *);\n" typ typ;
4011 (* Generate the guestfs-actions.h file. *)
4012 and generate_actions_h () =
4013 generate_header CStyle LGPLv2;
4015 fun (shortname, style, _, _, _, _, _) ->
4016 let name = "guestfs_" ^ shortname in
4017 generate_prototype ~single_line:true ~newline:true ~handle:"handle"
4021 (* Generate the client-side dispatch stubs. *)
4022 and generate_client_actions () =
4023 generate_header CStyle LGPLv2;
4029 #include \"guestfs.h\"
4030 #include \"guestfs_protocol.h\"
4032 #define error guestfs_error
4033 #define perrorf guestfs_perrorf
4034 #define safe_malloc guestfs_safe_malloc
4035 #define safe_realloc guestfs_safe_realloc
4036 #define safe_strdup guestfs_safe_strdup
4037 #define safe_memdup guestfs_safe_memdup
4039 /* Check the return message from a call for validity. */
4041 check_reply_header (guestfs_h *g,
4042 const struct guestfs_message_header *hdr,
4043 int proc_nr, int serial)
4045 if (hdr->prog != GUESTFS_PROGRAM) {
4046 error (g, \"wrong program (%%d/%%d)\", hdr->prog, GUESTFS_PROGRAM);
4049 if (hdr->vers != GUESTFS_PROTOCOL_VERSION) {
4050 error (g, \"wrong protocol version (%%d/%%d)\",
4051 hdr->vers, GUESTFS_PROTOCOL_VERSION);
4054 if (hdr->direction != GUESTFS_DIRECTION_REPLY) {
4055 error (g, \"unexpected message direction (%%d/%%d)\",
4056 hdr->direction, GUESTFS_DIRECTION_REPLY);
4059 if (hdr->proc != proc_nr) {
4060 error (g, \"unexpected procedure number (%%d/%%d)\", hdr->proc, proc_nr);
4063 if (hdr->serial != serial) {
4064 error (g, \"unexpected serial (%%d/%%d)\", hdr->serial, serial);
4071 /* Check we are in the right state to run a high-level action. */
4073 check_state (guestfs_h *g, const char *caller)
4075 if (!guestfs_is_ready (g)) {
4076 if (guestfs_is_config (g))
4077 error (g, \"%%s: call launch before using this function\\n(in guestfish, don't forget to use the 'run' command)\",
4079 else if (guestfs_is_launching (g))
4080 error (g, \"%%s: call wait_ready() before using this function\",
4083 error (g, \"%%s called from the wrong state, %%d != READY\",
4084 caller, guestfs_get_state (g));
4092 (* Client-side stubs for each function. *)
4094 fun (shortname, style, _, _, _, _, _) ->
4095 let name = "guestfs_" ^ shortname in
4097 (* Generate the context struct which stores the high-level
4098 * state between callback functions.
4100 pr "struct %s_ctx {\n" shortname;
4101 pr " /* This flag is set by the callbacks, so we know we've done\n";
4102 pr " * the callbacks as expected, and in the right sequence.\n";
4103 pr " * 0 = not called, 1 = reply_cb called.\n";
4105 pr " int cb_sequence;\n";
4106 pr " struct guestfs_message_header hdr;\n";
4107 pr " struct guestfs_message_error err;\n";
4108 (match fst style with
4110 | RConstString _ | RConstOptString _ ->
4111 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4113 | RBool _ | RString _ | RStringList _
4114 | RStruct _ | RStructList _
4115 | RHashtable _ | RBufferOut _ ->
4116 pr " struct %s_ret ret;\n" name
4121 (* Generate the reply callback function. *)
4122 pr "static void %s_reply_cb (guestfs_h *g, void *data, XDR *xdr)\n" shortname;
4124 pr " guestfs_main_loop *ml = guestfs_get_main_loop (g);\n";
4125 pr " struct %s_ctx *ctx = (struct %s_ctx *) data;\n" shortname shortname;
4127 pr " /* This should definitely not happen. */\n";
4128 pr " if (ctx->cb_sequence != 0) {\n";
4129 pr " ctx->cb_sequence = 9999;\n";
4130 pr " error (g, \"%%s: internal error: reply callback called twice\", \"%s\");\n" name;
4134 pr " ml->main_loop_quit (ml, g);\n";
4136 pr " if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {\n";
4137 pr " error (g, \"%%s: failed to parse reply header\", \"%s\");\n" name;
4140 pr " if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {\n";
4141 pr " if (!xdr_guestfs_message_error (xdr, &ctx->err)) {\n";
4142 pr " error (g, \"%%s: failed to parse reply error\", \"%s\");\n"
4149 (match fst style with
4151 | RConstString _ | RConstOptString _ ->
4152 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4154 | RBool _ | RString _ | RStringList _
4155 | RStruct _ | RStructList _
4156 | RHashtable _ | RBufferOut _ ->
4157 pr " if (!xdr_%s_ret (xdr, &ctx->ret)) {\n" name;
4158 pr " error (g, \"%%s: failed to parse reply\", \"%s\");\n" name;
4164 pr " ctx->cb_sequence = 1;\n";
4167 (* Generate the action stub. *)
4168 generate_prototype ~extern:false ~semicolon:false ~newline:true
4169 ~handle:"g" name style;
4172 match fst style with
4173 | RErr | RInt _ | RInt64 _ | RBool _ -> "-1"
4174 | RConstString _ | RConstOptString _ ->
4175 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4176 | RString _ | RStringList _
4177 | RStruct _ | RStructList _
4178 | RHashtable _ | RBufferOut _ ->
4183 (match snd style with
4185 | _ -> pr " struct %s_args args;\n" name
4188 pr " struct %s_ctx ctx;\n" shortname;
4189 pr " guestfs_main_loop *ml = guestfs_get_main_loop (g);\n";
4190 pr " int serial;\n";
4192 pr " if (check_state (g, \"%s\") == -1) return %s;\n" name error_code;
4193 pr " guestfs_set_busy (g);\n";
4195 pr " memset (&ctx, 0, sizeof ctx);\n";
4198 (* Send the main header and arguments. *)
4199 (match snd style with
4201 pr " serial = guestfs__send_sync (g, GUESTFS_PROC_%s, NULL, NULL);\n"
4202 (String.uppercase shortname)
4207 pr " args.%s = (char *) %s;\n" n n
4209 pr " args.%s = %s ? (char **) &%s : NULL;\n" n n n
4211 pr " args.%s.%s_val = (char **) %s;\n" n n n;
4212 pr " for (args.%s.%s_len = 0; %s[args.%s.%s_len]; args.%s.%s_len++) ;\n" n n n n n n n;
4214 pr " args.%s = %s;\n" n n
4216 pr " args.%s = %s;\n" n n
4217 | FileIn _ | FileOut _ -> ()
4219 pr " serial = guestfs__send_sync (g, GUESTFS_PROC_%s,\n"
4220 (String.uppercase shortname);
4221 pr " (xdrproc_t) xdr_%s_args, (char *) &args);\n"
4224 pr " if (serial == -1) {\n";
4225 pr " guestfs_end_busy (g);\n";
4226 pr " return %s;\n" error_code;
4230 (* Send any additional files (FileIn) requested. *)
4231 let need_read_reply_label = ref false in
4238 pr " r = guestfs__send_file_sync (g, %s);\n" n;
4239 pr " if (r == -1) {\n";
4240 pr " guestfs_end_busy (g);\n";
4241 pr " return %s;\n" error_code;
4243 pr " if (r == -2) /* daemon cancelled */\n";
4244 pr " goto read_reply;\n";
4245 need_read_reply_label := true;
4251 (* Wait for the reply from the remote end. *)
4252 if !need_read_reply_label then pr " read_reply:\n";
4253 pr " guestfs__switch_to_receiving (g);\n";
4254 pr " ctx.cb_sequence = 0;\n";
4255 pr " guestfs_set_reply_callback (g, %s_reply_cb, &ctx);\n" shortname;
4256 pr " (void) ml->main_loop_run (ml, g);\n";
4257 pr " guestfs_set_reply_callback (g, NULL, NULL);\n";
4258 pr " if (ctx.cb_sequence != 1) {\n";
4259 pr " error (g, \"%%s reply failed, see earlier error messages\", \"%s\");\n" name;
4260 pr " guestfs_end_busy (g);\n";
4261 pr " return %s;\n" error_code;
4265 pr " if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_%s, serial) == -1) {\n"
4266 (String.uppercase shortname);
4267 pr " guestfs_end_busy (g);\n";
4268 pr " return %s;\n" error_code;
4272 pr " if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {\n";
4273 pr " error (g, \"%%s\", ctx.err.error_message);\n";
4274 pr " free (ctx.err.error_message);\n";
4275 pr " guestfs_end_busy (g);\n";
4276 pr " return %s;\n" error_code;
4280 (* Expecting to receive further files (FileOut)? *)
4284 pr " if (guestfs__receive_file_sync (g, %s) == -1) {\n" n;
4285 pr " guestfs_end_busy (g);\n";
4286 pr " return %s;\n" error_code;
4292 pr " guestfs_end_busy (g);\n";
4294 (match fst style with
4295 | RErr -> pr " return 0;\n"
4296 | RInt n | RInt64 n | RBool n ->
4297 pr " return ctx.ret.%s;\n" n
4298 | RConstString _ | RConstOptString _ ->
4299 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4301 pr " return ctx.ret.%s; /* caller will free */\n" n
4302 | RStringList n | RHashtable n ->
4303 pr " /* caller will free this, but we need to add a NULL entry */\n";
4304 pr " ctx.ret.%s.%s_val =\n" n n;
4305 pr " safe_realloc (g, ctx.ret.%s.%s_val,\n" n n;
4306 pr " sizeof (char *) * (ctx.ret.%s.%s_len + 1));\n"
4308 pr " ctx.ret.%s.%s_val[ctx.ret.%s.%s_len] = NULL;\n" n n n n;
4309 pr " return ctx.ret.%s.%s_val;\n" n n
4311 pr " /* caller will free this */\n";
4312 pr " return safe_memdup (g, &ctx.ret.%s, sizeof (ctx.ret.%s));\n" n n
4313 | RStructList (n, _) ->
4314 pr " /* caller will free this */\n";
4315 pr " return safe_memdup (g, &ctx.ret.%s, sizeof (ctx.ret.%s));\n" n n
4317 pr " *size_r = ctx.ret.%s.%s_len;\n" n n;
4318 pr " return ctx.ret.%s.%s_val; /* caller will free */\n" n n
4324 (* Functions to free structures. *)
4325 pr "/* Structure-freeing functions. These rely on the fact that the\n";
4326 pr " * structure format is identical to the XDR format. See note in\n";
4327 pr " * generator.ml.\n";
4334 pr "guestfs_free_%s (struct guestfs_%s *x)\n" typ typ;
4336 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s, (char *) x);\n" typ;
4342 pr "guestfs_free_%s_list (struct guestfs_%s_list *x)\n" typ typ;
4344 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s_list, (char *) x);\n" typ;
4351 (* Generate daemon/actions.h. *)
4352 and generate_daemon_actions_h () =
4353 generate_header CStyle GPLv2;
4355 pr "#include \"../src/guestfs_protocol.h\"\n";
4359 fun (name, style, _, _, _, _, _) ->
4361 ~single_line:true ~newline:true ~in_daemon:true ~prefix:"do_"
4365 (* Generate the server-side stubs. *)
4366 and generate_daemon_actions () =
4367 generate_header CStyle GPLv2;
4369 pr "#include <config.h>\n";
4371 pr "#include <stdio.h>\n";
4372 pr "#include <stdlib.h>\n";
4373 pr "#include <string.h>\n";
4374 pr "#include <inttypes.h>\n";
4375 pr "#include <ctype.h>\n";
4376 pr "#include <rpc/types.h>\n";
4377 pr "#include <rpc/xdr.h>\n";
4379 pr "#include \"daemon.h\"\n";
4380 pr "#include \"../src/guestfs_protocol.h\"\n";
4381 pr "#include \"actions.h\"\n";
4385 fun (name, style, _, _, _, _, _) ->
4386 (* Generate server-side stubs. *)
4387 pr "static void %s_stub (XDR *xdr_in)\n" name;
4390 match fst style with
4391 | RErr | RInt _ -> pr " int r;\n"; "-1"
4392 | RInt64 _ -> pr " int64_t r;\n"; "-1"
4393 | RBool _ -> pr " int r;\n"; "-1"
4394 | RConstString _ | RConstOptString _ ->
4395 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4396 | RString _ -> pr " char *r;\n"; "NULL"
4397 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
4398 | RStruct (_, typ) -> pr " guestfs_int_%s *r;\n" typ; "NULL"
4399 | RStructList (_, typ) -> pr " guestfs_int_%s_list *r;\n" typ; "NULL"
4401 pr " size_t size;\n";
4405 (match snd style with
4408 pr " struct guestfs_%s_args args;\n" name;
4411 (* Note we allow the string to be writable, in order to
4412 * allow device name translation. This is safe because
4413 * we can modify the string (passed from RPC).
4416 | OptString n -> pr " char *%s;\n" n
4417 | StringList n -> pr " char **%s;\n" n
4418 | Bool n -> pr " int %s;\n" n
4419 | Int n -> pr " int %s;\n" n
4420 | FileIn _ | FileOut _ -> ()
4425 (match snd style with
4428 pr " memset (&args, 0, sizeof args);\n";
4430 pr " if (!xdr_guestfs_%s_args (xdr_in, &args)) {\n" name;
4431 pr " reply_with_error (\"%%s: daemon failed to decode procedure arguments\", \"%s\");\n" name;
4436 | String n -> pr " %s = args.%s;\n" n n
4437 | OptString n -> pr " %s = args.%s ? *args.%s : NULL;\n" n n n
4439 pr " %s = realloc (args.%s.%s_val,\n" n n n;
4440 pr " sizeof (char *) * (args.%s.%s_len+1));\n" n n;
4441 pr " if (%s == NULL) {\n" n;
4442 pr " reply_with_perror (\"realloc\");\n";
4445 pr " %s[args.%s.%s_len] = NULL;\n" n n n;
4446 pr " args.%s.%s_val = %s;\n" n n n;
4447 | Bool n -> pr " %s = args.%s;\n" n n
4448 | Int n -> pr " %s = args.%s;\n" n n
4449 | FileIn _ | FileOut _ -> ()
4454 (* Don't want to call the impl with any FileIn or FileOut
4455 * parameters, since these go "outside" the RPC protocol.
4458 List.filter (function FileIn _ | FileOut _ -> false | _ -> true)
4460 pr " r = do_%s " name;
4461 generate_c_call_args (fst style, args');
4464 pr " if (r == %s)\n" error_code;
4465 pr " /* do_%s has already called reply_with_error */\n" name;
4469 (* If there are any FileOut parameters, then the impl must
4470 * send its own reply.
4473 List.exists (function FileOut _ -> true | _ -> false) (snd style) in
4475 pr " /* do_%s has already sent a reply */\n" name
4477 match fst style with
4478 | RErr -> pr " reply (NULL, NULL);\n"
4479 | RInt n | RInt64 n | RBool n ->
4480 pr " struct guestfs_%s_ret ret;\n" name;
4481 pr " ret.%s = r;\n" n;
4482 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
4484 | RConstString _ | RConstOptString _ ->
4485 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
4487 pr " struct guestfs_%s_ret ret;\n" name;
4488 pr " ret.%s = r;\n" n;
4489 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
4492 | RStringList n | RHashtable n ->
4493 pr " struct guestfs_%s_ret ret;\n" name;
4494 pr " ret.%s.%s_len = count_strings (r);\n" n n;
4495 pr " ret.%s.%s_val = r;\n" n n;
4496 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
4498 pr " free_strings (r);\n"
4500 pr " struct guestfs_%s_ret ret;\n" name;
4501 pr " ret.%s = *r;\n" n;
4502 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
4504 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
4506 | RStructList (n, _) ->
4507 pr " struct guestfs_%s_ret ret;\n" name;
4508 pr " ret.%s = *r;\n" n;
4509 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
4511 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
4514 pr " struct guestfs_%s_ret ret;\n" name;
4515 pr " ret.%s.%s_val = r;\n" n n;
4516 pr " ret.%s.%s_len = size;\n" n n;
4517 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
4522 (* Free the args. *)
4523 (match snd style with
4528 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_args, (char *) &args);\n"
4535 (* Dispatch function. *)
4536 pr "void dispatch_incoming_message (XDR *xdr_in)\n";
4538 pr " switch (proc_nr) {\n";
4541 fun (name, style, _, _, _, _, _) ->
4542 pr " case GUESTFS_PROC_%s:\n" (String.uppercase name);
4543 pr " %s_stub (xdr_in);\n" name;
4548 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";
4553 (* LVM columns and tokenization functions. *)
4554 (* XXX This generates crap code. We should rethink how we
4560 pr "static const char *lvm_%s_cols = \"%s\";\n"
4561 typ (String.concat "," (List.map fst cols));
4564 pr "static int lvm_tokenize_%s (char *str, guestfs_int_lvm_%s *r)\n" typ typ;
4566 pr " char *tok, *p, *next;\n";
4570 pr " fprintf (stderr, \"%%s: <<%%s>>\\n\", __func__, str);\n";
4573 pr " if (!str) {\n";
4574 pr " fprintf (stderr, \"%%s: failed: passed a NULL string\\n\", __func__);\n";
4577 pr " if (!*str || isspace (*str)) {\n";
4578 pr " fprintf (stderr, \"%%s: failed: passed a empty string or one beginning with whitespace\\n\", __func__);\n";
4583 fun (name, coltype) ->
4584 pr " if (!tok) {\n";
4585 pr " fprintf (stderr, \"%%s: failed: string finished early, around token %%s\\n\", __func__, \"%s\");\n" name;
4588 pr " p = strchrnul (tok, ',');\n";
4589 pr " if (*p) next = p+1; else next = NULL;\n";
4590 pr " *p = '\\0';\n";
4593 pr " r->%s = strdup (tok);\n" name;
4594 pr " if (r->%s == NULL) {\n" name;
4595 pr " perror (\"strdup\");\n";
4599 pr " for (i = j = 0; i < 32; ++j) {\n";
4600 pr " if (tok[j] == '\\0') {\n";
4601 pr " fprintf (stderr, \"%%s: failed to parse UUID from '%%s'\\n\", __func__, tok);\n";
4603 pr " } else if (tok[j] != '-')\n";
4604 pr " r->%s[i++] = tok[j];\n" name;
4607 pr " if (sscanf (tok, \"%%\"SCNu64, &r->%s) != 1) {\n" name;
4608 pr " fprintf (stderr, \"%%s: failed to parse size '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
4612 pr " if (sscanf (tok, \"%%\"SCNi64, &r->%s) != 1) {\n" name;
4613 pr " fprintf (stderr, \"%%s: failed to parse int '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
4617 pr " if (tok[0] == '\\0')\n";
4618 pr " r->%s = -1;\n" name;
4619 pr " else if (sscanf (tok, \"%%f\", &r->%s) != 1) {\n" name;
4620 pr " fprintf (stderr, \"%%s: failed to parse float '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
4623 | FBuffer | FInt32 | FUInt32 | FUInt64 | FChar ->
4624 assert false (* can never be an LVM column *)
4626 pr " tok = next;\n";
4629 pr " if (tok != NULL) {\n";
4630 pr " fprintf (stderr, \"%%s: failed: extra tokens at end of string\\n\", __func__);\n";
4637 pr "guestfs_int_lvm_%s_list *\n" typ;
4638 pr "parse_command_line_%ss (void)\n" typ;
4640 pr " char *out, *err;\n";
4641 pr " char *p, *pend;\n";
4643 pr " guestfs_int_lvm_%s_list *ret;\n" typ;
4644 pr " void *newp;\n";
4646 pr " ret = malloc (sizeof *ret);\n";
4647 pr " if (!ret) {\n";
4648 pr " reply_with_perror (\"malloc\");\n";
4649 pr " return NULL;\n";
4652 pr " ret->guestfs_int_lvm_%s_list_len = 0;\n" typ;
4653 pr " ret->guestfs_int_lvm_%s_list_val = NULL;\n" typ;
4655 pr " r = command (&out, &err,\n";
4656 pr " \"/sbin/lvm\", \"%ss\",\n" typ;
4657 pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ;
4658 pr " \"--nosuffix\", \"--separator\", \",\", \"--units\", \"b\", NULL);\n";
4659 pr " if (r == -1) {\n";
4660 pr " reply_with_error (\"%%s\", err);\n";
4661 pr " free (out);\n";
4662 pr " free (err);\n";
4663 pr " free (ret);\n";
4664 pr " return NULL;\n";
4667 pr " free (err);\n";
4669 pr " /* Tokenize each line of the output. */\n";
4672 pr " while (p) {\n";
4673 pr " pend = strchr (p, '\\n'); /* Get the next line of output. */\n";
4674 pr " if (pend) {\n";
4675 pr " *pend = '\\0';\n";
4679 pr " while (*p && isspace (*p)) /* Skip any leading whitespace. */\n";
4682 pr " if (!*p) { /* Empty line? Skip it. */\n";
4687 pr " /* Allocate some space to store this next entry. */\n";
4688 pr " newp = realloc (ret->guestfs_int_lvm_%s_list_val,\n" typ;
4689 pr " sizeof (guestfs_int_lvm_%s) * (i+1));\n" typ;
4690 pr " if (newp == NULL) {\n";
4691 pr " reply_with_perror (\"realloc\");\n";
4692 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
4693 pr " free (ret);\n";
4694 pr " free (out);\n";
4695 pr " return NULL;\n";
4697 pr " ret->guestfs_int_lvm_%s_list_val = newp;\n" typ;
4699 pr " /* Tokenize the next entry. */\n";
4700 pr " r = lvm_tokenize_%s (p, &ret->guestfs_int_lvm_%s_list_val[i]);\n" typ typ;
4701 pr " if (r == -1) {\n";
4702 pr " reply_with_error (\"failed to parse output of '%ss' command\");\n" typ;
4703 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
4704 pr " free (ret);\n";
4705 pr " free (out);\n";
4706 pr " return NULL;\n";
4713 pr " ret->guestfs_int_lvm_%s_list_len = i;\n" typ;
4715 pr " free (out);\n";
4716 pr " return ret;\n";
4719 ) ["pv", lvm_pv_cols; "vg", lvm_vg_cols; "lv", lvm_lv_cols]
4721 (* Generate a list of function names, for debugging in the daemon.. *)
4722 and generate_daemon_names () =
4723 generate_header CStyle GPLv2;
4725 pr "#include <config.h>\n";
4727 pr "#include \"daemon.h\"\n";
4730 pr "/* This array is indexed by proc_nr. See guestfs_protocol.x. */\n";
4731 pr "const char *function_names[] = {\n";
4733 fun (name, _, proc_nr, _, _, _, _) -> pr " [%d] = \"%s\",\n" proc_nr name
4737 (* Generate the tests. *)
4738 and generate_tests () =
4739 generate_header CStyle GPLv2;
4746 #include <sys/types.h>
4749 #include \"guestfs.h\"
4751 static guestfs_h *g;
4752 static int suppress_error = 0;
4754 static void print_error (guestfs_h *g, void *data, const char *msg)
4756 if (!suppress_error)
4757 fprintf (stderr, \"%%s\\n\", msg);
4760 static void print_strings (char * const * const argv)
4764 for (argc = 0; argv[argc] != NULL; ++argc)
4765 printf (\"\\t%%s\\n\", argv[argc]);
4769 static void print_table (char * const * const argv)
4773 for (i = 0; argv[i] != NULL; i += 2)
4774 printf (\"%%s: %%s\\n\", argv[i], argv[i+1]);
4778 static void no_test_warnings (void)
4784 | name, _, _, _, [], _, _ ->
4785 pr " fprintf (stderr, \"warning: \\\"guestfs_%s\\\" has no tests\\n\");\n" name
4786 | name, _, _, _, tests, _, _ -> ()
4792 (* Generate the actual tests. Note that we generate the tests
4793 * in reverse order, deliberately, so that (in general) the
4794 * newest tests run first. This makes it quicker and easier to
4799 fun (name, _, _, _, tests, _, _) ->
4800 mapi (generate_one_test name) tests
4801 ) (List.rev all_functions) in
4802 let test_names = List.concat test_names in
4803 let nr_tests = List.length test_names in
4806 int main (int argc, char *argv[])
4810 const char *filename;
4812 int nr_tests, test_num = 0;
4814 setbuf (stdout, NULL);
4816 no_test_warnings ();
4818 g = guestfs_create ();
4820 printf (\"guestfs_create FAILED\\n\");
4824 guestfs_set_error_handler (g, print_error, NULL);
4826 guestfs_set_path (g, \"../appliance\");
4828 filename = \"test1.img\";
4829 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
4834 if (lseek (fd, %d, SEEK_SET) == -1) {
4840 if (write (fd, &c, 1) == -1) {
4846 if (close (fd) == -1) {
4851 if (guestfs_add_drive (g, filename) == -1) {
4852 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
4856 filename = \"test2.img\";
4857 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
4862 if (lseek (fd, %d, SEEK_SET) == -1) {
4868 if (write (fd, &c, 1) == -1) {
4874 if (close (fd) == -1) {
4879 if (guestfs_add_drive (g, filename) == -1) {
4880 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
4884 filename = \"test3.img\";
4885 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
4890 if (lseek (fd, %d, SEEK_SET) == -1) {
4896 if (write (fd, &c, 1) == -1) {
4902 if (close (fd) == -1) {
4907 if (guestfs_add_drive (g, filename) == -1) {
4908 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
4912 if (guestfs_add_drive_ro (g, \"../images/test.sqsh\") == -1) {
4913 printf (\"guestfs_add_drive_ro ../images/test.sqsh FAILED\\n\");
4917 if (guestfs_launch (g) == -1) {
4918 printf (\"guestfs_launch FAILED\\n\");
4922 /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
4925 if (guestfs_wait_ready (g) == -1) {
4926 printf (\"guestfs_wait_ready FAILED\\n\");
4930 /* Cancel previous alarm. */
4935 " (500 * 1024 * 1024) (50 * 1024 * 1024) (10 * 1024 * 1024) nr_tests;
4939 pr " test_num++;\n";
4940 pr " printf (\"%%3d/%%3d %s\\n\", test_num, nr_tests);\n" test_name;
4941 pr " if (%s () == -1) {\n" test_name;
4942 pr " printf (\"%s FAILED\\n\");\n" test_name;
4948 pr " guestfs_close (g);\n";
4949 pr " unlink (\"test1.img\");\n";
4950 pr " unlink (\"test2.img\");\n";
4951 pr " unlink (\"test3.img\");\n";
4954 pr " if (failed > 0) {\n";
4955 pr " printf (\"***** %%d / %%d tests FAILED *****\\n\", failed, nr_tests);\n";
4963 and generate_one_test name i (init, prereq, test) =
4964 let test_name = sprintf "test_%s_%d" name i in
4967 static int %s_skip (void)
4971 str = getenv (\"TEST_ONLY\");
4973 return strstr (str, \"%s\") == NULL;
4974 str = getenv (\"SKIP_%s\");
4975 if (str && strcmp (str, \"1\") == 0) return 1;
4976 str = getenv (\"SKIP_TEST_%s\");
4977 if (str && strcmp (str, \"1\") == 0) return 1;
4981 " test_name name (String.uppercase test_name) (String.uppercase name);
4984 | Disabled | Always -> ()
4985 | If code | Unless code ->
4986 pr "static int %s_prereq (void)\n" test_name;
4994 static int %s (void)
4997 printf (\" %%s skipped (reason: environment variable set)\\n\", \"%s\");
5001 " test_name test_name test_name;
5005 pr " printf (\" %%s skipped (reason: test disabled in generator)\\n\", \"%s\");\n" test_name
5007 pr " if (! %s_prereq ()) {\n" test_name;
5008 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
5012 generate_one_test_body name i test_name init test;
5014 pr " if (%s_prereq ()) {\n" test_name;
5015 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
5019 generate_one_test_body name i test_name init test;
5021 generate_one_test_body name i test_name init test
5029 and generate_one_test_body name i test_name init test =
5031 | InitNone (* XXX at some point, InitNone and InitEmpty became
5032 * folded together as the same thing. Really we should
5033 * make InitNone do nothing at all, but the tests may
5034 * need to be checked to make sure this is OK.
5037 pr " /* InitNone|InitEmpty for %s */\n" test_name;
5038 List.iter (generate_test_command_call test_name)
5039 [["blockdev_setrw"; "/dev/sda"];
5043 pr " /* InitBasicFS for %s: create ext2 on /dev/sda1 */\n" test_name;
5044 List.iter (generate_test_command_call test_name)
5045 [["blockdev_setrw"; "/dev/sda"];
5048 ["sfdiskM"; "/dev/sda"; ","];
5049 ["mkfs"; "ext2"; "/dev/sda1"];
5050 ["mount"; "/dev/sda1"; "/"]]
5051 | InitBasicFSonLVM ->
5052 pr " /* InitBasicFSonLVM for %s: create ext2 on /dev/VG/LV */\n"
5054 List.iter (generate_test_command_call test_name)
5055 [["blockdev_setrw"; "/dev/sda"];
5058 ["sfdiskM"; "/dev/sda"; ","];
5059 ["pvcreate"; "/dev/sda1"];
5060 ["vgcreate"; "VG"; "/dev/sda1"];
5061 ["lvcreate"; "LV"; "VG"; "8"];
5062 ["mkfs"; "ext2"; "/dev/VG/LV"];
5063 ["mount"; "/dev/VG/LV"; "/"]]
5065 pr " /* InitSquashFS for %s */\n" test_name;
5066 List.iter (generate_test_command_call test_name)
5067 [["blockdev_setrw"; "/dev/sda"];
5070 ["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"]]
5073 let get_seq_last = function
5075 failwithf "%s: you cannot use [] (empty list) when expecting a command"
5078 let seq = List.rev seq in
5079 List.rev (List.tl seq), List.hd seq
5084 pr " /* TestRun for %s (%d) */\n" name i;
5085 List.iter (generate_test_command_call test_name) seq
5086 | TestOutput (seq, expected) ->
5087 pr " /* TestOutput for %s (%d) */\n" name i;
5088 pr " const char *expected = \"%s\";\n" (c_quote expected);
5089 let seq, last = get_seq_last seq in
5091 pr " if (strcmp (r, expected) != 0) {\n";
5092 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
5096 List.iter (generate_test_command_call test_name) seq;
5097 generate_test_command_call ~test test_name last
5098 | TestOutputList (seq, expected) ->
5099 pr " /* TestOutputList for %s (%d) */\n" name i;
5100 let seq, last = get_seq_last seq in
5104 pr " if (!r[%d]) {\n" i;
5105 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
5106 pr " print_strings (r);\n";
5110 pr " const char *expected = \"%s\";\n" (c_quote str);
5111 pr " if (strcmp (r[%d], expected) != 0) {\n" i;
5112 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
5117 pr " if (r[%d] != NULL) {\n" (List.length expected);
5118 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
5120 pr " print_strings (r);\n";
5124 List.iter (generate_test_command_call test_name) seq;
5125 generate_test_command_call ~test test_name last
5126 | TestOutputListOfDevices (seq, expected) ->
5127 pr " /* TestOutputListOfDevices for %s (%d) */\n" name i;
5128 let seq, last = get_seq_last seq in
5132 pr " if (!r[%d]) {\n" i;
5133 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
5134 pr " print_strings (r);\n";
5138 pr " const char *expected = \"%s\";\n" (c_quote str);
5139 pr " r[%d][5] = 's';\n" i;
5140 pr " if (strcmp (r[%d], expected) != 0) {\n" i;
5141 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
5146 pr " if (r[%d] != NULL) {\n" (List.length expected);
5147 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
5149 pr " print_strings (r);\n";
5153 List.iter (generate_test_command_call test_name) seq;
5154 generate_test_command_call ~test test_name last
5155 | TestOutputInt (seq, expected) ->
5156 pr " /* TestOutputInt for %s (%d) */\n" name i;
5157 let seq, last = get_seq_last seq in
5159 pr " if (r != %d) {\n" expected;
5160 pr " fprintf (stderr, \"%s: expected %d but got %%d\\n\","
5166 List.iter (generate_test_command_call test_name) seq;
5167 generate_test_command_call ~test test_name last
5168 | TestOutputIntOp (seq, op, expected) ->
5169 pr " /* TestOutputIntOp for %s (%d) */\n" name i;
5170 let seq, last = get_seq_last seq in
5172 pr " if (! (r %s %d)) {\n" op expected;
5173 pr " fprintf (stderr, \"%s: expected %s %d but got %%d\\n\","
5174 test_name op expected;
5179 List.iter (generate_test_command_call test_name) seq;
5180 generate_test_command_call ~test test_name last
5181 | TestOutputTrue seq ->
5182 pr " /* TestOutputTrue for %s (%d) */\n" name i;
5183 let seq, last = get_seq_last seq in
5186 pr " fprintf (stderr, \"%s: expected true, got false\\n\");\n"
5191 List.iter (generate_test_command_call test_name) seq;
5192 generate_test_command_call ~test test_name last
5193 | TestOutputFalse seq ->
5194 pr " /* TestOutputFalse for %s (%d) */\n" name i;
5195 let seq, last = get_seq_last seq in
5198 pr " fprintf (stderr, \"%s: expected false, got true\\n\");\n"
5203 List.iter (generate_test_command_call test_name) seq;
5204 generate_test_command_call ~test test_name last
5205 | TestOutputLength (seq, expected) ->
5206 pr " /* TestOutputLength for %s (%d) */\n" name i;
5207 let seq, last = get_seq_last seq in
5210 pr " for (j = 0; j < %d; ++j)\n" expected;
5211 pr " if (r[j] == NULL) {\n";
5212 pr " fprintf (stderr, \"%s: short list returned\\n\");\n"
5214 pr " print_strings (r);\n";
5217 pr " if (r[j] != NULL) {\n";
5218 pr " fprintf (stderr, \"%s: long list returned\\n\");\n"
5220 pr " print_strings (r);\n";
5224 List.iter (generate_test_command_call test_name) seq;
5225 generate_test_command_call ~test test_name last
5226 | TestOutputBuffer (seq, expected) ->
5227 pr " /* TestOutputBuffer for %s (%d) */\n" name i;
5228 pr " const char *expected = \"%s\";\n" (c_quote expected);
5229 let seq, last = get_seq_last seq in
5230 let len = String.length expected in
5232 pr " if (size != %d) {\n" len;
5233 pr " fprintf (stderr, \"%s: returned size of buffer wrong, expected %d but got %%zu\\n\", size);\n" test_name len;
5236 pr " if (strncmp (r, expected, size) != 0) {\n";
5237 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
5241 List.iter (generate_test_command_call test_name) seq;
5242 generate_test_command_call ~test test_name last
5243 | TestOutputStruct (seq, checks) ->
5244 pr " /* TestOutputStruct for %s (%d) */\n" name i;
5245 let seq, last = get_seq_last seq in
5249 | CompareWithInt (field, expected) ->
5250 pr " if (r->%s != %d) {\n" field expected;
5251 pr " fprintf (stderr, \"%s: %s was %%d, expected %d\\n\",\n"
5252 test_name field expected;
5253 pr " (int) r->%s);\n" field;
5256 | CompareWithIntOp (field, op, expected) ->
5257 pr " if (!(r->%s %s %d)) {\n" field op expected;
5258 pr " fprintf (stderr, \"%s: %s was %%d, expected %s %d\\n\",\n"
5259 test_name field op expected;
5260 pr " (int) r->%s);\n" field;
5263 | CompareWithString (field, expected) ->
5264 pr " if (strcmp (r->%s, \"%s\") != 0) {\n" field expected;
5265 pr " fprintf (stderr, \"%s: %s was \"%%s\", expected \"%s\"\\n\",\n"
5266 test_name field expected;
5267 pr " r->%s);\n" field;
5270 | CompareFieldsIntEq (field1, field2) ->
5271 pr " if (r->%s != r->%s) {\n" field1 field2;
5272 pr " fprintf (stderr, \"%s: %s (%%d) <> %s (%%d)\\n\",\n"
5273 test_name field1 field2;
5274 pr " (int) r->%s, (int) r->%s);\n" field1 field2;
5277 | CompareFieldsStrEq (field1, field2) ->
5278 pr " if (strcmp (r->%s, r->%s) != 0) {\n" field1 field2;
5279 pr " fprintf (stderr, \"%s: %s (\"%%s\") <> %s (\"%%s\")\\n\",\n"
5280 test_name field1 field2;
5281 pr " r->%s, r->%s);\n" field1 field2;
5286 List.iter (generate_test_command_call test_name) seq;
5287 generate_test_command_call ~test test_name last
5288 | TestLastFail seq ->
5289 pr " /* TestLastFail for %s (%d) */\n" name i;
5290 let seq, last = get_seq_last seq in
5291 List.iter (generate_test_command_call test_name) seq;
5292 generate_test_command_call test_name ~expect_error:true last
5294 (* Generate the code to run a command, leaving the result in 'r'.
5295 * If you expect to get an error then you should set expect_error:true.
5297 and generate_test_command_call ?(expect_error = false) ?test test_name cmd =
5299 | [] -> assert false
5301 (* Look up the command to find out what args/ret it has. *)
5304 let _, style, _, _, _, _, _ =
5305 List.find (fun (n, _, _, _, _, _, _) -> n = name) all_functions in
5308 failwithf "%s: in test, command %s was not found" test_name name in
5310 if List.length (snd style) <> List.length args then
5311 failwithf "%s: in test, wrong number of args given to %s"
5318 | OptString n, "NULL" -> ()
5320 | OptString n, arg ->
5321 pr " const char *%s = \"%s\";\n" n (c_quote arg);
5324 | FileIn _, _ | FileOut _, _ -> ()
5325 | StringList n, arg ->
5326 let strs = string_split " " arg in
5329 pr " const char *%s_%d = \"%s\";\n" n i (c_quote str);
5331 pr " const char *%s[] = {\n" n;
5333 fun i _ -> pr " %s_%d,\n" n i
5337 ) (List.combine (snd style) args);
5340 match fst style with
5341 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
5342 | RInt64 _ -> pr " int64_t r;\n"; "-1"
5343 | RConstString _ | RConstOptString _ ->
5344 pr " const char *r;\n"; "NULL"
5345 | RString _ -> pr " char *r;\n"; "NULL"
5346 | RStringList _ | RHashtable _ ->
5350 | RStruct (_, typ) ->
5351 pr " struct guestfs_%s *r;\n" typ; "NULL"
5352 | RStructList (_, typ) ->
5353 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
5356 pr " size_t size;\n";
5359 pr " suppress_error = %d;\n" (if expect_error then 1 else 0);
5360 pr " r = guestfs_%s (g" name;
5362 (* Generate the parameters. *)
5365 | OptString _, "NULL" -> pr ", NULL"
5369 | FileIn _, arg | FileOut _, arg ->
5370 pr ", \"%s\"" (c_quote arg)
5371 | StringList n, _ ->
5375 try int_of_string arg
5376 with Failure "int_of_string" ->
5377 failwithf "%s: expecting an int, but got '%s'" test_name arg in
5380 let b = bool_of_string arg in pr ", %d" (if b then 1 else 0)
5381 ) (List.combine (snd style) args);
5383 (match fst style with
5384 | RBufferOut _ -> pr ", &size"
5390 if not expect_error then
5391 pr " if (r == %s)\n" error_code
5393 pr " if (r != %s)\n" error_code;
5396 (* Insert the test code. *)
5402 (match fst style with
5403 | RErr | RInt _ | RInt64 _ | RBool _
5404 | RConstString _ | RConstOptString _ -> ()
5405 | RString _ | RBufferOut _ -> pr " free (r);\n"
5406 | RStringList _ | RHashtable _ ->
5407 pr " for (i = 0; r[i] != NULL; ++i)\n";
5408 pr " free (r[i]);\n";
5410 | RStruct (_, typ) ->
5411 pr " guestfs_free_%s (r);\n" typ
5412 | RStructList (_, typ) ->
5413 pr " guestfs_free_%s_list (r);\n" typ
5419 let str = replace_str str "\r" "\\r" in
5420 let str = replace_str str "\n" "\\n" in
5421 let str = replace_str str "\t" "\\t" in
5422 let str = replace_str str "\000" "\\0" in
5425 (* Generate a lot of different functions for guestfish. *)
5426 and generate_fish_cmds () =
5427 generate_header CStyle GPLv2;
5431 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
5433 let all_functions_sorted =
5435 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
5436 ) all_functions_sorted in
5438 pr "#include <stdio.h>\n";
5439 pr "#include <stdlib.h>\n";
5440 pr "#include <string.h>\n";
5441 pr "#include <inttypes.h>\n";
5442 pr "#include <ctype.h>\n";
5444 pr "#include <guestfs.h>\n";
5445 pr "#include \"fish.h\"\n";
5448 (* list_commands function, which implements guestfish -h *)
5449 pr "void list_commands (void)\n";
5451 pr " printf (\" %%-16s %%s\\n\", \"Command\", \"Description\");\n";
5452 pr " list_builtin_commands ();\n";
5454 fun (name, _, _, flags, _, shortdesc, _) ->
5455 let name = replace_char name '_' '-' in
5456 pr " printf (\"%%-20s %%s\\n\", \"%s\", \"%s\");\n"
5458 ) all_functions_sorted;
5459 pr " printf (\" Use -h <cmd> / help <cmd> to show detailed help for a command.\\n\");\n";
5463 (* display_command function, which implements guestfish -h cmd *)
5464 pr "void display_command (const char *cmd)\n";
5467 fun (name, style, _, flags, _, shortdesc, longdesc) ->
5468 let name2 = replace_char name '_' '-' in
5470 try find_map (function FishAlias n -> Some n | _ -> None) flags
5471 with Not_found -> name in
5472 let longdesc = replace_str longdesc "C<guestfs_" "C<" in
5474 match snd style with
5478 name2 (String.concat "> <" (List.map name_of_argt args)) in
5481 if List.mem ProtocolLimitWarning flags then
5482 ("\n\n" ^ protocol_limit_warning)
5485 (* For DangerWillRobinson commands, we should probably have
5486 * guestfish prompt before allowing you to use them (especially
5487 * in interactive mode). XXX
5491 if List.mem DangerWillRobinson flags then
5492 ("\n\n" ^ danger_will_robinson)
5497 match deprecation_notice flags with
5499 | Some txt -> "\n\n" ^ txt in
5501 let describe_alias =
5502 if name <> alias then
5503 sprintf "\n\nYou can use '%s' as an alias for this command." alias
5507 pr "strcasecmp (cmd, \"%s\") == 0" name;
5508 if name <> name2 then
5509 pr " || strcasecmp (cmd, \"%s\") == 0" name2;
5510 if name <> alias then
5511 pr " || strcasecmp (cmd, \"%s\") == 0" alias;
5513 pr " pod2text (\"%s - %s\", %S);\n"
5515 (" " ^ synopsis ^ "\n\n" ^ longdesc ^ warnings ^ describe_alias);
5518 pr " display_builtin_command (cmd);\n";
5522 (* print_* functions *)
5526 List.exists (function (_, (FUUID|FBuffer)) -> true | _ -> false) cols in
5528 pr "static void print_%s (struct guestfs_%s *%s)\n" typ typ typ;
5537 pr " printf (\"%s: %%s\\n\", %s->%s);\n" name typ name
5539 pr " printf (\"%s: \");\n" name;
5540 pr " for (i = 0; i < 32; ++i)\n";
5541 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
5542 pr " printf (\"\\n\");\n"
5544 pr " printf (\"%s: \");\n" name;
5545 pr " for (i = 0; i < %s->%s_len; ++i)\n" typ name;
5546 pr " if (isprint (%s->%s[i]))\n" typ name;
5547 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
5549 pr " printf (\"\\\\x%%02x\", %s->%s[i]);\n" typ name;
5550 pr " printf (\"\\n\");\n"
5551 | name, (FUInt64|FBytes) ->
5552 pr " printf (\"%s: %%\" PRIu64 \"\\n\", %s->%s);\n" name typ name
5554 pr " printf (\"%s: %%\" PRIi64 \"\\n\", %s->%s);\n" name typ name
5556 pr " printf (\"%s: %%\" PRIu32 \"\\n\", %s->%s);\n" name typ name
5558 pr " printf (\"%s: %%\" PRIi32 \"\\n\", %s->%s);\n" name typ name
5560 pr " printf (\"%s: %%c\\n\", %s->%s);\n" name typ name
5561 | name, FOptPercent ->
5562 pr " if (%s->%s >= 0) printf (\"%s: %%g %%%%\\n\", %s->%s);\n"
5563 typ name name typ name;
5564 pr " else printf (\"%s: \\n\");\n" name
5568 pr "static void print_%s_list (struct guestfs_%s_list *%ss)\n"
5573 pr " for (i = 0; i < %ss->len; ++i)\n" typ;
5574 pr " print_%s (&%ss->val[i]);\n" typ typ;
5579 (* run_<action> actions *)
5581 fun (name, style, _, flags, _, _, _) ->
5582 pr "static int run_%s (const char *cmd, int argc, char *argv[])\n" name;
5584 (match fst style with
5587 | RBool _ -> pr " int r;\n"
5588 | RInt64 _ -> pr " int64_t r;\n"
5589 | RConstString _ | RConstOptString _ -> pr " const char *r;\n"
5590 | RString _ -> pr " char *r;\n"
5591 | RStringList _ | RHashtable _ -> pr " char **r;\n"
5592 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ
5593 | RStructList (_, typ) -> pr " struct guestfs_%s_list *r;\n" typ
5596 pr " size_t size;\n";
5603 | FileOut n -> pr " const char *%s;\n" n
5604 | StringList n -> pr " char **%s;\n" n
5605 | Bool n -> pr " int %s;\n" n
5606 | Int n -> pr " int %s;\n" n
5609 (* Check and convert parameters. *)
5610 let argc_expected = List.length (snd style) in
5611 pr " if (argc != %d) {\n" argc_expected;
5612 pr " fprintf (stderr, \"%%s should have %d parameter(s)\\n\", cmd);\n"
5614 pr " fprintf (stderr, \"type 'help %%s' for help on %%s\\n\", cmd, cmd);\n";
5620 | String name -> pr " %s = argv[%d];\n" name i
5622 pr " %s = strcmp (argv[%d], \"\") != 0 ? argv[%d] : NULL;\n"
5625 pr " %s = strcmp (argv[%d], \"-\") != 0 ? argv[%d] : \"/dev/stdin\";\n"
5628 pr " %s = strcmp (argv[%d], \"-\") != 0 ? argv[%d] : \"/dev/stdout\";\n"
5630 | StringList name ->
5631 pr " %s = parse_string_list (argv[%d]);\n" name i
5633 pr " %s = is_true (argv[%d]) ? 1 : 0;\n" name i
5635 pr " %s = atoi (argv[%d]);\n" name i
5638 (* Call C API function. *)
5640 try find_map (function FishAction n -> Some n | _ -> None) flags
5641 with Not_found -> sprintf "guestfs_%s" name in
5643 generate_c_call_args ~handle:"g" style;
5646 (* Check return value for errors and display command results. *)
5647 (match fst style with
5648 | RErr -> pr " return r;\n"
5650 pr " if (r == -1) return -1;\n";
5651 pr " printf (\"%%d\\n\", r);\n";
5654 pr " if (r == -1) return -1;\n";
5655 pr " printf (\"%%\" PRIi64 \"\\n\", r);\n";
5658 pr " if (r == -1) return -1;\n";
5659 pr " if (r) printf (\"true\\n\"); else printf (\"false\\n\");\n";
5662 pr " if (r == NULL) return -1;\n";
5663 pr " printf (\"%%s\\n\", r);\n";
5665 | RConstOptString _ ->
5666 pr " printf (\"%%s\\n\", r ? : \"(null)\");\n";
5669 pr " if (r == NULL) return -1;\n";
5670 pr " printf (\"%%s\\n\", r);\n";
5674 pr " if (r == NULL) return -1;\n";
5675 pr " print_strings (r);\n";
5676 pr " free_strings (r);\n";
5678 | RStruct (_, typ) ->
5679 pr " if (r == NULL) return -1;\n";
5680 pr " print_%s (r);\n" typ;
5681 pr " guestfs_free_%s (r);\n" typ;
5683 | RStructList (_, typ) ->
5684 pr " if (r == NULL) return -1;\n";
5685 pr " print_%s_list (r);\n" typ;
5686 pr " guestfs_free_%s_list (r);\n" typ;
5689 pr " if (r == NULL) return -1;\n";
5690 pr " print_table (r);\n";
5691 pr " free_strings (r);\n";
5694 pr " if (r == NULL) return -1;\n";
5695 pr " fwrite (r, size, 1, stdout);\n";
5703 (* run_action function *)
5704 pr "int run_action (const char *cmd, int argc, char *argv[])\n";
5707 fun (name, _, _, flags, _, _, _) ->
5708 let name2 = replace_char name '_' '-' in
5710 try find_map (function FishAlias n -> Some n | _ -> None) flags
5711 with Not_found -> name in
5713 pr "strcasecmp (cmd, \"%s\") == 0" name;
5714 if name <> name2 then
5715 pr " || strcasecmp (cmd, \"%s\") == 0" name2;
5716 if name <> alias then
5717 pr " || strcasecmp (cmd, \"%s\") == 0" alias;
5719 pr " return run_%s (cmd, argc, argv);\n" name;
5723 pr " fprintf (stderr, \"%%s: unknown command\\n\", cmd);\n";
5730 (* Readline completion for guestfish. *)
5731 and generate_fish_completion () =
5732 generate_header CStyle GPLv2;
5736 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
5746 #ifdef HAVE_LIBREADLINE
5747 #include <readline/readline.h>
5752 #ifdef HAVE_LIBREADLINE
5754 static const char *const commands[] = {
5755 BUILTIN_COMMANDS_FOR_COMPLETION,
5758 (* Get the commands, including the aliases. They don't need to be
5759 * sorted - the generator() function just does a dumb linear search.
5763 fun (name, _, _, flags, _, _, _) ->
5764 let name2 = replace_char name '_' '-' in
5766 try find_map (function FishAlias n -> Some n | _ -> None) flags
5767 with Not_found -> name in
5769 if name <> alias then [name2; alias] else [name2]
5771 let commands = List.flatten commands in
5773 List.iter (pr " \"%s\",\n") commands;
5779 generator (const char *text, int state)
5781 static int index, len;
5786 len = strlen (text);
5789 rl_attempted_completion_over = 1;
5791 while ((name = commands[index]) != NULL) {
5793 if (strncasecmp (name, text, len) == 0)
5794 return strdup (name);
5800 #endif /* HAVE_LIBREADLINE */
5802 char **do_completion (const char *text, int start, int end)
5804 char **matches = NULL;
5806 #ifdef HAVE_LIBREADLINE
5807 rl_completion_append_character = ' ';
5810 matches = rl_completion_matches (text, generator);
5811 else if (complete_dest_paths)
5812 matches = rl_completion_matches (text, complete_dest_paths_generator);
5819 (* Generate the POD documentation for guestfish. *)
5820 and generate_fish_actions_pod () =
5821 let all_functions_sorted =
5823 fun (_, _, _, flags, _, _, _) ->
5824 not (List.mem NotInFish flags || List.mem NotInDocs flags)
5825 ) all_functions_sorted in
5827 let rex = Str.regexp "C<guestfs_\\([^>]+\\)>" in
5830 fun (name, style, _, flags, _, _, longdesc) ->
5832 Str.global_substitute rex (
5835 try Str.matched_group 1 s
5837 failwithf "error substituting C<guestfs_...> in longdesc of function %s" name in
5838 "C<" ^ replace_char sub '_' '-' ^ ">"
5840 let name = replace_char name '_' '-' in
5842 try find_map (function FishAlias n -> Some n | _ -> None) flags
5843 with Not_found -> name in
5845 pr "=head2 %s" name;
5846 if name <> alias then
5853 | String n -> pr " %s" n
5854 | OptString n -> pr " %s" n
5855 | StringList n -> pr " '%s ...'" n
5856 | Bool _ -> pr " true|false"
5857 | Int n -> pr " %s" n
5858 | FileIn n | FileOut n -> pr " (%s|-)" n
5862 pr "%s\n\n" longdesc;
5864 if List.exists (function FileIn _ | FileOut _ -> true
5865 | _ -> false) (snd style) then
5866 pr "Use C<-> instead of a filename to read/write from stdin/stdout.\n\n";
5868 if List.mem ProtocolLimitWarning flags then
5869 pr "%s\n\n" protocol_limit_warning;
5871 if List.mem DangerWillRobinson flags then
5872 pr "%s\n\n" danger_will_robinson;
5874 match deprecation_notice flags with
5876 | Some txt -> pr "%s\n\n" txt
5877 ) all_functions_sorted
5879 (* Generate a C function prototype. *)
5880 and generate_prototype ?(extern = true) ?(static = false) ?(semicolon = true)
5881 ?(single_line = false) ?(newline = false) ?(in_daemon = false)
5883 ?handle name style =
5884 if extern then pr "extern ";
5885 if static then pr "static ";
5886 (match fst style with
5888 | RInt _ -> pr "int "
5889 | RInt64 _ -> pr "int64_t "
5890 | RBool _ -> pr "int "
5891 | RConstString _ | RConstOptString _ -> pr "const char *"
5892 | RString _ | RBufferOut _ -> pr "char *"
5893 | RStringList _ | RHashtable _ -> pr "char **"
5894 | RStruct (_, typ) ->
5895 if not in_daemon then pr "struct guestfs_%s *" typ
5896 else pr "guestfs_int_%s *" typ
5897 | RStructList (_, typ) ->
5898 if not in_daemon then pr "struct guestfs_%s_list *" typ
5899 else pr "guestfs_int_%s_list *" typ
5901 let is_RBufferOut = match fst style with RBufferOut _ -> true | _ -> false in
5902 pr "%s%s (" prefix name;
5903 if handle = None && List.length (snd style) = 0 && not is_RBufferOut then
5906 let comma = ref false in
5909 | Some handle -> pr "guestfs_h *%s" handle; comma := true
5913 if single_line then pr ", " else pr ",\n\t\t"
5922 if not in_daemon then pr "const char *%s" n
5923 else pr "char *%s" n
5926 if not in_daemon then pr "char * const* const %s" n
5927 else pr "char **%s" n
5928 | Bool n -> next (); pr "int %s" n
5929 | Int n -> next (); pr "int %s" n
5932 if not in_daemon then (next (); pr "const char *%s" n)
5934 if is_RBufferOut then (next (); pr "size_t *size_r");
5937 if semicolon then pr ";";
5938 if newline then pr "\n"
5940 (* Generate C call arguments, eg "(handle, foo, bar)" *)
5941 and generate_c_call_args ?handle ?(decl = false) style =
5943 let comma = ref false in
5945 if !comma then pr ", ";
5950 | Some handle -> pr "%s" handle; comma := true
5955 pr "%s" (name_of_argt arg)
5957 (* For RBufferOut calls, add implicit &size parameter. *)
5959 match fst style with
5967 (* Generate the OCaml bindings interface. *)
5968 and generate_ocaml_mli () =
5969 generate_header OCamlStyle LGPLv2;
5972 (** For API documentation you should refer to the C API
5973 in the guestfs(3) manual page. The OCaml API uses almost
5974 exactly the same calls. *)
5977 (** A [guestfs_h] handle. *)
5979 exception Error of string
5980 (** This exception is raised when there is an error. *)
5982 val create : unit -> t
5984 val close : t -> unit
5985 (** Handles are closed by the garbage collector when they become
5986 unreferenced, but callers can also call this in order to
5987 provide predictable cleanup. *)
5990 generate_ocaml_structure_decls ();
5994 fun (name, style, _, _, _, shortdesc, _) ->
5995 generate_ocaml_prototype name style;
5996 pr "(** %s *)\n" shortdesc;
6000 (* Generate the OCaml bindings implementation. *)
6001 and generate_ocaml_ml () =
6002 generate_header OCamlStyle LGPLv2;
6006 exception Error of string
6007 external create : unit -> t = \"ocaml_guestfs_create\"
6008 external close : t -> unit = \"ocaml_guestfs_close\"
6011 Callback.register_exception \"ocaml_guestfs_error\" (Error \"\")
6015 generate_ocaml_structure_decls ();
6019 fun (name, style, _, _, _, shortdesc, _) ->
6020 generate_ocaml_prototype ~is_external:true name style;
6023 (* Generate the OCaml bindings C implementation. *)
6024 and generate_ocaml_c () =
6025 generate_header CStyle LGPLv2;
6032 #include <caml/config.h>
6033 #include <caml/alloc.h>
6034 #include <caml/callback.h>
6035 #include <caml/fail.h>
6036 #include <caml/memory.h>
6037 #include <caml/mlvalues.h>
6038 #include <caml/signals.h>
6040 #include <guestfs.h>
6042 #include \"guestfs_c.h\"
6044 /* Copy a hashtable of string pairs into an assoc-list. We return
6045 * the list in reverse order, but hashtables aren't supposed to be
6048 static CAMLprim value
6049 copy_table (char * const * argv)
6052 CAMLlocal5 (rv, pairv, kv, vv, cons);
6056 for (i = 0; argv[i] != NULL; i += 2) {
6057 kv = caml_copy_string (argv[i]);
6058 vv = caml_copy_string (argv[i+1]);
6059 pairv = caml_alloc (2, 0);
6060 Store_field (pairv, 0, kv);
6061 Store_field (pairv, 1, vv);
6062 cons = caml_alloc (2, 0);
6063 Store_field (cons, 1, rv);
6065 Store_field (cons, 0, pairv);
6073 (* Struct copy functions. *)
6076 let has_optpercent_col =
6077 List.exists (function (_, FOptPercent) -> true | _ -> false) cols in
6079 pr "static CAMLprim value\n";
6080 pr "copy_%s (const struct guestfs_%s *%s)\n" typ typ typ;
6082 pr " CAMLparam0 ();\n";
6083 if has_optpercent_col then
6084 pr " CAMLlocal3 (rv, v, v2);\n"
6086 pr " CAMLlocal2 (rv, v);\n";
6088 pr " rv = caml_alloc (%d, 0);\n" (List.length cols);
6093 pr " v = caml_copy_string (%s->%s);\n" typ name
6095 pr " v = caml_alloc_string (%s->%s_len);\n" typ name;
6096 pr " memcpy (String_val (v), %s->%s, %s->%s_len);\n"
6099 pr " v = caml_alloc_string (32);\n";
6100 pr " memcpy (String_val (v), %s->%s, 32);\n" typ name
6101 | name, (FBytes|FInt64|FUInt64) ->
6102 pr " v = caml_copy_int64 (%s->%s);\n" typ name
6103 | name, (FInt32|FUInt32) ->
6104 pr " v = caml_copy_int32 (%s->%s);\n" typ name
6105 | name, FOptPercent ->
6106 pr " if (%s->%s >= 0) { /* Some %s */\n" typ name name;
6107 pr " v2 = caml_copy_double (%s->%s);\n" typ name;
6108 pr " v = caml_alloc (1, 0);\n";
6109 pr " Store_field (v, 0, v2);\n";
6110 pr " } else /* None */\n";
6111 pr " v = Val_int (0);\n";
6113 pr " v = Val_int (%s->%s);\n" typ name
6115 pr " Store_field (rv, %d, v);\n" i
6117 pr " CAMLreturn (rv);\n";
6121 pr "static CAMLprim value\n";
6122 pr "copy_%s_list (const struct guestfs_%s_list *%ss)\n"
6125 pr " CAMLparam0 ();\n";
6126 pr " CAMLlocal2 (rv, v);\n";
6129 pr " if (%ss->len == 0)\n" typ;
6130 pr " CAMLreturn (Atom (0));\n";
6132 pr " rv = caml_alloc (%ss->len, 0);\n" typ;
6133 pr " for (i = 0; i < %ss->len; ++i) {\n" typ;
6134 pr " v = copy_%s (&%ss->val[i]);\n" typ typ;
6135 pr " caml_modify (&Field (rv, i), v);\n";
6137 pr " CAMLreturn (rv);\n";
6145 fun (name, style, _, _, _, _, _) ->
6147 "gv" :: List.map (fun arg -> name_of_argt arg ^ "v") (snd style) in
6149 let needs_extra_vs =
6150 match fst style with RConstOptString _ -> true | _ -> false in
6152 pr "CAMLprim value\n";
6153 pr "ocaml_guestfs_%s (value %s" name (List.hd params);
6154 List.iter (pr ", value %s") (List.tl params);
6159 | [p1; p2; p3; p4; p5] ->
6160 pr " CAMLparam5 (%s);\n" (String.concat ", " params)
6161 | p1 :: p2 :: p3 :: p4 :: p5 :: rest ->
6162 pr " CAMLparam5 (%s);\n" (String.concat ", " [p1; p2; p3; p4; p5]);
6163 pr " CAMLxparam%d (%s);\n"
6164 (List.length rest) (String.concat ", " rest)
6166 pr " CAMLparam%d (%s);\n" (List.length ps) (String.concat ", " ps)
6168 if not needs_extra_vs then
6169 pr " CAMLlocal1 (rv);\n"
6171 pr " CAMLlocal3 (rv, v, v2);\n";
6174 pr " guestfs_h *g = Guestfs_val (gv);\n";
6175 pr " if (g == NULL)\n";
6176 pr " caml_failwith (\"%s: used handle after closing it\");\n" name;
6184 pr " const char *%s = String_val (%sv);\n" n n
6186 pr " const char *%s =\n" n;
6187 pr " %sv != Val_int (0) ? String_val (Field (%sv, 0)) : NULL;\n"
6190 pr " char **%s = ocaml_guestfs_strings_val (g, %sv);\n" n n
6192 pr " int %s = Bool_val (%sv);\n" n n
6194 pr " int %s = Int_val (%sv);\n" n n
6197 match fst style with
6198 | RErr -> pr " int r;\n"; "-1"
6199 | RInt _ -> pr " int r;\n"; "-1"
6200 | RInt64 _ -> pr " int64_t r;\n"; "-1"
6201 | RBool _ -> pr " int r;\n"; "-1"
6202 | RConstString _ | RConstOptString _ ->
6203 pr " const char *r;\n"; "NULL"
6204 | RString _ -> pr " char *r;\n"; "NULL"
6209 | RStruct (_, typ) ->
6210 pr " struct guestfs_%s *r;\n" typ; "NULL"
6211 | RStructList (_, typ) ->
6212 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
6219 pr " size_t size;\n";
6223 pr " caml_enter_blocking_section ();\n";
6224 pr " r = guestfs_%s " name;
6225 generate_c_call_args ~handle:"g" style;
6227 pr " caml_leave_blocking_section ();\n";
6232 pr " ocaml_guestfs_free_strings (%s);\n" n;
6233 | String _ | OptString _ | Bool _ | Int _ | FileIn _ | FileOut _ -> ()
6236 pr " if (r == %s)\n" error_code;
6237 pr " ocaml_guestfs_raise_error (g, \"%s\");\n" name;
6240 (match fst style with
6241 | RErr -> pr " rv = Val_unit;\n"
6242 | RInt _ -> pr " rv = Val_int (r);\n"
6244 pr " rv = caml_copy_int64 (r);\n"
6245 | RBool _ -> pr " rv = Val_bool (r);\n"
6247 pr " rv = caml_copy_string (r);\n"
6248 | RConstOptString _ ->
6249 pr " if (r) { /* Some string */\n";
6250 pr " v = caml_alloc (1, 0);\n";
6251 pr " v2 = caml_copy_string (r);\n";
6252 pr " Store_field (v, 0, v2);\n";
6253 pr " } else /* None */\n";
6254 pr " v = Val_int (0);\n";
6256 pr " rv = caml_copy_string (r);\n";
6259 pr " rv = caml_copy_string_array ((const char **) r);\n";
6260 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
6262 | RStruct (_, typ) ->
6263 pr " rv = copy_%s (r);\n" typ;
6264 pr " guestfs_free_%s (r);\n" typ;
6265 | RStructList (_, typ) ->
6266 pr " rv = copy_%s_list (r);\n" typ;
6267 pr " guestfs_free_%s_list (r);\n" typ;
6269 pr " rv = copy_table (r);\n";
6270 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
6273 pr " rv = caml_alloc_string (size);\n";
6274 pr " memcpy (String_val (rv), r, size);\n";
6277 pr " CAMLreturn (rv);\n";
6281 if List.length params > 5 then (
6282 pr "CAMLprim value\n";
6283 pr "ocaml_guestfs_%s_byte (value *argv, int argn)\n" name;
6285 pr " return ocaml_guestfs_%s (argv[0]" name;
6286 iteri (fun i _ -> pr ", argv[%d]" i) (List.tl params);
6293 and generate_ocaml_structure_decls () =
6296 pr "type %s = {\n" typ;
6299 | name, FString -> pr " %s : string;\n" name
6300 | name, FBuffer -> pr " %s : string;\n" name
6301 | name, FUUID -> pr " %s : string;\n" name
6302 | name, (FBytes|FInt64|FUInt64) -> pr " %s : int64;\n" name
6303 | name, (FInt32|FUInt32) -> pr " %s : int32;\n" name
6304 | name, FChar -> pr " %s : char;\n" name
6305 | name, FOptPercent -> pr " %s : float option;\n" name
6311 and generate_ocaml_prototype ?(is_external = false) name style =
6312 if is_external then pr "external " else pr "val ";
6313 pr "%s : t -> " name;
6316 | String _ | FileIn _ | FileOut _ -> pr "string -> "
6317 | OptString _ -> pr "string option -> "
6318 | StringList _ -> pr "string array -> "
6319 | Bool _ -> pr "bool -> "
6320 | Int _ -> pr "int -> "
6322 (match fst style with
6323 | RErr -> pr "unit" (* all errors are turned into exceptions *)
6324 | RInt _ -> pr "int"
6325 | RInt64 _ -> pr "int64"
6326 | RBool _ -> pr "bool"
6327 | RConstString _ -> pr "string"
6328 | RConstOptString _ -> pr "string option"
6329 | RString _ | RBufferOut _ -> pr "string"
6330 | RStringList _ -> pr "string array"
6331 | RStruct (_, typ) -> pr "%s" typ
6332 | RStructList (_, typ) -> pr "%s array" typ
6333 | RHashtable _ -> pr "(string * string) list"
6335 if is_external then (
6337 if List.length (snd style) + 1 > 5 then
6338 pr "\"ocaml_guestfs_%s_byte\" " name;
6339 pr "\"ocaml_guestfs_%s\"" name
6343 (* Generate Perl xs code, a sort of crazy variation of C with macros. *)
6344 and generate_perl_xs () =
6345 generate_header CStyle LGPLv2;
6348 #include \"EXTERN.h\"
6352 #include <guestfs.h>
6355 #define PRId64 \"lld\"
6359 my_newSVll(long long val) {
6360 #ifdef USE_64_BIT_ALL
6361 return newSViv(val);
6365 len = snprintf(buf, 100, \"%%\" PRId64, val);
6366 return newSVpv(buf, len);
6371 #define PRIu64 \"llu\"
6375 my_newSVull(unsigned long long val) {
6376 #ifdef USE_64_BIT_ALL
6377 return newSVuv(val);
6381 len = snprintf(buf, 100, \"%%\" PRIu64, val);
6382 return newSVpv(buf, len);
6386 /* http://www.perlmonks.org/?node_id=680842 */
6388 XS_unpack_charPtrPtr (SV *arg) {
6393 if (!arg || !SvOK (arg) || !SvROK (arg) || SvTYPE (SvRV (arg)) != SVt_PVAV)
6394 croak (\"array reference expected\");
6396 av = (AV *)SvRV (arg);
6397 ret = malloc ((av_len (av) + 1 + 1) * sizeof (char *));
6399 croak (\"malloc failed\");
6401 for (i = 0; i <= av_len (av); i++) {
6402 SV **elem = av_fetch (av, i, 0);
6404 if (!elem || !*elem)
6405 croak (\"missing element in list\");
6407 ret[i] = SvPV_nolen (*elem);
6415 MODULE = Sys::Guestfs PACKAGE = Sys::Guestfs
6422 RETVAL = guestfs_create ();
6424 croak (\"could not create guestfs handle\");
6425 guestfs_set_error_handler (RETVAL, NULL, NULL);
6438 fun (name, style, _, _, _, _, _) ->
6439 (match fst style with
6440 | RErr -> pr "void\n"
6441 | RInt _ -> pr "SV *\n"
6442 | RInt64 _ -> pr "SV *\n"
6443 | RBool _ -> pr "SV *\n"
6444 | RConstString _ -> pr "SV *\n"
6445 | RConstOptString _ -> pr "SV *\n"
6446 | RString _ -> pr "SV *\n"
6447 | RBufferOut _ -> pr "SV *\n"
6449 | RStruct _ | RStructList _
6451 pr "void\n" (* all lists returned implictly on the stack *)
6453 (* Call and arguments. *)
6455 generate_c_call_args ~handle:"g" ~decl:true style;
6457 pr " guestfs_h *g;\n";
6461 | String n | FileIn n | FileOut n -> pr " char *%s;\n" n
6463 (* http://www.perlmonks.org/?node_id=554277
6464 * Note that the implicit handle argument means we have
6465 * to add 1 to the ST(x) operator.
6467 pr " char *%s = SvOK(ST(%d)) ? SvPV_nolen(ST(%d)) : NULL;\n" n (i+1) (i+1)
6468 | StringList n -> pr " char **%s;\n" n
6469 | Bool n -> pr " int %s;\n" n
6470 | Int n -> pr " int %s;\n" n
6473 let do_cleanups () =
6476 | String _ | OptString _ | Bool _ | Int _
6477 | FileIn _ | FileOut _ -> ()
6478 | StringList n -> pr " free (%s);\n" n
6483 (match fst style with
6488 pr " r = guestfs_%s " name;
6489 generate_c_call_args ~handle:"g" style;
6492 pr " if (r == -1)\n";
6493 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6499 pr " %s = guestfs_%s " n name;
6500 generate_c_call_args ~handle:"g" style;
6503 pr " if (%s == -1)\n" n;
6504 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6505 pr " RETVAL = newSViv (%s);\n" n;
6510 pr " int64_t %s;\n" n;
6512 pr " %s = guestfs_%s " n name;
6513 generate_c_call_args ~handle:"g" style;
6516 pr " if (%s == -1)\n" n;
6517 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6518 pr " RETVAL = my_newSVll (%s);\n" n;
6523 pr " const char *%s;\n" n;
6525 pr " %s = guestfs_%s " n name;
6526 generate_c_call_args ~handle:"g" style;
6529 pr " if (%s == NULL)\n" n;
6530 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6531 pr " RETVAL = newSVpv (%s, 0);\n" n;
6534 | RConstOptString n ->
6536 pr " const char *%s;\n" n;
6538 pr " %s = guestfs_%s " n name;
6539 generate_c_call_args ~handle:"g" style;
6542 pr " if (%s == NULL)\n" n;
6543 pr " RETVAL = &PL_sv_undef;\n";
6545 pr " RETVAL = newSVpv (%s, 0);\n" n;
6550 pr " char *%s;\n" n;
6552 pr " %s = guestfs_%s " n name;
6553 generate_c_call_args ~handle:"g" style;
6556 pr " if (%s == NULL)\n" n;
6557 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6558 pr " RETVAL = newSVpv (%s, 0);\n" n;
6559 pr " free (%s);\n" n;
6562 | RStringList n | RHashtable n ->
6564 pr " char **%s;\n" n;
6567 pr " %s = guestfs_%s " n name;
6568 generate_c_call_args ~handle:"g" style;
6571 pr " if (%s == NULL)\n" n;
6572 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6573 pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
6574 pr " EXTEND (SP, n);\n";
6575 pr " for (i = 0; i < n; ++i) {\n";
6576 pr " PUSHs (sv_2mortal (newSVpv (%s[i], 0)));\n" n;
6577 pr " free (%s[i]);\n" n;
6579 pr " free (%s);\n" n;
6580 | RStruct (n, typ) ->
6581 let cols = cols_of_struct typ in
6582 generate_perl_struct_code typ cols name style n do_cleanups
6583 | RStructList (n, typ) ->
6584 let cols = cols_of_struct typ in
6585 generate_perl_struct_list_code typ cols name style n do_cleanups
6588 pr " char *%s;\n" n;
6589 pr " size_t size;\n";
6591 pr " %s = guestfs_%s " n name;
6592 generate_c_call_args ~handle:"g" style;
6595 pr " if (%s == NULL)\n" n;
6596 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6597 pr " RETVAL = newSVpv (%s, size);\n" n;
6598 pr " free (%s);\n" n;
6606 and generate_perl_struct_list_code typ cols name style n do_cleanups =
6608 pr " struct guestfs_%s_list *%s;\n" typ n;
6612 pr " %s = guestfs_%s " n name;
6613 generate_c_call_args ~handle:"g" style;
6616 pr " if (%s == NULL)\n" n;
6617 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6618 pr " EXTEND (SP, %s->len);\n" n;
6619 pr " for (i = 0; i < %s->len; ++i) {\n" n;
6620 pr " hv = newHV ();\n";
6624 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 0), 0);\n"
6625 name (String.length name) n name
6627 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
6628 name (String.length name) n name
6630 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
6631 name (String.length name) n name n name
6632 | name, (FBytes|FUInt64) ->
6633 pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
6634 name (String.length name) n name
6636 pr " (void) hv_store (hv, \"%s\", %d, my_newSVll (%s->val[i].%s), 0);\n"
6637 name (String.length name) n name
6638 | name, (FInt32|FUInt32) ->
6639 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
6640 name (String.length name) n name
6642 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (&%s->val[i].%s, 1), 0);\n"
6643 name (String.length name) n name
6644 | name, FOptPercent ->
6645 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
6646 name (String.length name) n name
6648 pr " PUSHs (sv_2mortal (newRV ((SV *) hv)));\n";
6650 pr " guestfs_free_%s_list (%s);\n" typ n
6652 and generate_perl_struct_code typ cols name style n do_cleanups =
6654 pr " struct guestfs_%s *%s;\n" typ n;
6656 pr " %s = guestfs_%s " n name;
6657 generate_c_call_args ~handle:"g" style;
6660 pr " if (%s == NULL)\n" n;
6661 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
6662 pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
6664 fun ((name, _) as col) ->
6665 pr " PUSHs (sv_2mortal (newSVpv (\"%s\", 0)));\n" name;
6669 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
6672 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, %s->%s_len)));\n"
6675 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
6677 | name, (FBytes|FUInt64) ->
6678 pr " PUSHs (sv_2mortal (my_newSVull (%s->%s)));\n"
6681 pr " PUSHs (sv_2mortal (my_newSVll (%s->%s)));\n"
6683 | name, (FInt32|FUInt32) ->
6684 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
6687 pr " PUSHs (sv_2mortal (newSVpv (&%s->%s, 1)));\n"
6689 | name, FOptPercent ->
6690 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
6693 pr " free (%s);\n" n
6695 (* Generate Sys/Guestfs.pm. *)
6696 and generate_perl_pm () =
6697 generate_header HashStyle LGPLv2;
6704 Sys::Guestfs - Perl bindings for libguestfs
6710 my $h = Sys::Guestfs->new ();
6711 $h->add_drive ('guest.img');
6714 $h->mount ('/dev/sda1', '/');
6715 $h->touch ('/hello');
6720 The C<Sys::Guestfs> module provides a Perl XS binding to the
6721 libguestfs API for examining and modifying virtual machine
6724 Amongst the things this is good for: making batch configuration
6725 changes to guests, getting disk used/free statistics (see also:
6726 virt-df), migrating between virtualization systems (see also:
6727 virt-p2v), performing partial backups, performing partial guest
6728 clones, cloning guests and changing registry/UUID/hostname info, and
6731 Libguestfs uses Linux kernel and qemu code, and can access any type of
6732 guest filesystem that Linux and qemu can, including but not limited
6733 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
6734 schemes, qcow, qcow2, vmdk.
6736 Libguestfs provides ways to enumerate guest storage (eg. partitions,
6737 LVs, what filesystem is in each LV, etc.). It can also run commands
6738 in the context of the guest. Also you can access filesystems over FTP.
6740 See also L<Sys::Guestfs::Lib(3)> for a set of useful library
6741 functions for using libguestfs from Perl, including integration
6746 All errors turn into calls to C<croak> (see L<Carp(3)>).
6754 package Sys::Guestfs;
6760 XSLoader::load ('Sys::Guestfs');
6762 =item $h = Sys::Guestfs->new ();
6764 Create a new guestfs handle.
6770 my $class = ref ($proto) || $proto;
6772 my $self = Sys::Guestfs::_create ();
6773 bless $self, $class;
6779 (* Actions. We only need to print documentation for these as
6780 * they are pulled in from the XS code automatically.
6783 fun (name, style, _, flags, _, _, longdesc) ->
6784 if not (List.mem NotInDocs flags) then (
6785 let longdesc = replace_str longdesc "C<guestfs_" "C<$h-E<gt>" in
6787 generate_perl_prototype name style;
6789 pr "%s\n\n" longdesc;
6790 if List.mem ProtocolLimitWarning flags then
6791 pr "%s\n\n" protocol_limit_warning;
6792 if List.mem DangerWillRobinson flags then
6793 pr "%s\n\n" danger_will_robinson;
6794 match deprecation_notice flags with
6796 | Some txt -> pr "%s\n\n" txt
6798 ) all_functions_sorted;
6810 Copyright (C) 2009 Red Hat Inc.
6814 Please see the file COPYING.LIB for the full license.
6820 L<http://libguestfs.org>,
6821 L<Sys::Guestfs::Lib(3)>.
6826 and generate_perl_prototype name style =
6827 (match fst style with
6835 | RBufferOut n -> pr "$%s = " n
6837 | RHashtable n -> pr "%%%s = " n
6839 | RStructList (n,_) -> pr "@%s = " n
6842 let comma = ref false in
6845 if !comma then pr ", ";
6848 | String n | OptString n | Bool n | Int n | FileIn n | FileOut n ->
6855 (* Generate Python C module. *)
6856 and generate_python_c () =
6857 generate_header CStyle LGPLv2;
6866 #include \"guestfs.h\"
6874 get_handle (PyObject *obj)
6877 assert (obj != Py_None);
6878 return ((Pyguestfs_Object *) obj)->g;
6882 put_handle (guestfs_h *g)
6886 PyCObject_FromVoidPtrAndDesc ((void *) g, (char *) \"guestfs_h\", NULL);
6889 /* This list should be freed (but not the strings) after use. */
6890 static const char **
6891 get_string_list (PyObject *obj)
6898 if (!PyList_Check (obj)) {
6899 PyErr_SetString (PyExc_RuntimeError, \"expecting a list parameter\");
6903 len = PyList_Size (obj);
6904 r = malloc (sizeof (char *) * (len+1));
6906 PyErr_SetString (PyExc_RuntimeError, \"get_string_list: out of memory\");
6910 for (i = 0; i < len; ++i)
6911 r[i] = PyString_AsString (PyList_GetItem (obj, i));
6918 put_string_list (char * const * const argv)
6923 for (argc = 0; argv[argc] != NULL; ++argc)
6926 list = PyList_New (argc);
6927 for (i = 0; i < argc; ++i)
6928 PyList_SetItem (list, i, PyString_FromString (argv[i]));
6934 put_table (char * const * const argv)
6936 PyObject *list, *item;
6939 for (argc = 0; argv[argc] != NULL; ++argc)
6942 list = PyList_New (argc >> 1);
6943 for (i = 0; i < argc; i += 2) {
6944 item = PyTuple_New (2);
6945 PyTuple_SetItem (item, 0, PyString_FromString (argv[i]));
6946 PyTuple_SetItem (item, 1, PyString_FromString (argv[i+1]));
6947 PyList_SetItem (list, i >> 1, item);
6954 free_strings (char **argv)
6958 for (argc = 0; argv[argc] != NULL; ++argc)
6964 py_guestfs_create (PyObject *self, PyObject *args)
6968 g = guestfs_create ();
6970 PyErr_SetString (PyExc_RuntimeError,
6971 \"guestfs.create: failed to allocate handle\");
6974 guestfs_set_error_handler (g, NULL, NULL);
6975 return put_handle (g);
6979 py_guestfs_close (PyObject *self, PyObject *args)
6984 if (!PyArg_ParseTuple (args, (char *) \"O:guestfs_close\", &py_g))
6986 g = get_handle (py_g);
6990 Py_INCREF (Py_None);
6996 (* Structures, turned into Python dictionaries. *)
6999 pr "static PyObject *\n";
7000 pr "put_%s (struct guestfs_%s *%s)\n" typ typ typ;
7002 pr " PyObject *dict;\n";
7004 pr " dict = PyDict_New ();\n";
7008 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7009 pr " PyString_FromString (%s->%s));\n"
7012 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7013 pr " PyString_FromStringAndSize (%s->%s, %s->%s_len));\n"
7016 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7017 pr " PyString_FromStringAndSize (%s->%s, 32));\n"
7019 | name, (FBytes|FUInt64) ->
7020 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7021 pr " PyLong_FromUnsignedLongLong (%s->%s));\n"
7024 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7025 pr " PyLong_FromLongLong (%s->%s));\n"
7028 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7029 pr " PyLong_FromUnsignedLong (%s->%s));\n"
7032 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7033 pr " PyLong_FromLong (%s->%s));\n"
7035 | name, FOptPercent ->
7036 pr " if (%s->%s >= 0)\n" typ name;
7037 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7038 pr " PyFloat_FromDouble ((double) %s->%s));\n"
7041 pr " Py_INCREF (Py_None);\n";
7042 pr " PyDict_SetItemString (dict, \"%s\", Py_None);" name;
7045 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
7046 pr " PyString_FromStringAndSize (&dirent->%s, 1));\n" name
7048 pr " return dict;\n";
7052 pr "static PyObject *\n";
7053 pr "put_%s_list (struct guestfs_%s_list *%ss)\n" typ typ typ;
7055 pr " PyObject *list;\n";
7058 pr " list = PyList_New (%ss->len);\n" typ;
7059 pr " for (i = 0; i < %ss->len; ++i)\n" typ;
7060 pr " PyList_SetItem (list, i, put_%s (&%ss->val[i]));\n" typ typ;
7061 pr " return list;\n";
7066 (* Python wrapper functions. *)
7068 fun (name, style, _, _, _, _, _) ->
7069 pr "static PyObject *\n";
7070 pr "py_guestfs_%s (PyObject *self, PyObject *args)\n" name;
7073 pr " PyObject *py_g;\n";
7074 pr " guestfs_h *g;\n";
7075 pr " PyObject *py_r;\n";
7078 match fst style with
7079 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
7080 | RInt64 _ -> pr " int64_t r;\n"; "-1"
7081 | RConstString _ | RConstOptString _ ->
7082 pr " const char *r;\n"; "NULL"
7083 | RString _ -> pr " char *r;\n"; "NULL"
7084 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
7085 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
7086 | RStructList (_, typ) ->
7087 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
7090 pr " size_t size;\n";
7095 | String n | FileIn n | FileOut n -> pr " const char *%s;\n" n
7096 | OptString n -> pr " const char *%s;\n" n
7098 pr " PyObject *py_%s;\n" n;
7099 pr " const char **%s;\n" n
7100 | Bool n -> pr " int %s;\n" n
7101 | Int n -> pr " int %s;\n" n
7106 (* Convert the parameters. *)
7107 pr " if (!PyArg_ParseTuple (args, (char *) \"O";
7110 | String _ | FileIn _ | FileOut _ -> pr "s"
7111 | OptString _ -> pr "z"
7112 | StringList _ -> pr "O"
7113 | Bool _ -> pr "i" (* XXX Python has booleans? *)
7116 pr ":guestfs_%s\",\n" name;
7120 | String n | FileIn n | FileOut n -> pr ", &%s" n
7121 | OptString n -> pr ", &%s" n
7122 | StringList n -> pr ", &py_%s" n
7123 | Bool n -> pr ", &%s" n
7124 | Int n -> pr ", &%s" n
7128 pr " return NULL;\n";
7130 pr " g = get_handle (py_g);\n";
7133 | String _ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ -> ()
7135 pr " %s = get_string_list (py_%s);\n" n n;
7136 pr " if (!%s) return NULL;\n" n
7141 pr " r = guestfs_%s " name;
7142 generate_c_call_args ~handle:"g" style;
7147 | String _ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ -> ()
7149 pr " free (%s);\n" n
7152 pr " if (r == %s) {\n" error_code;
7153 pr " PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));\n";
7154 pr " return NULL;\n";
7158 (match fst style with
7160 pr " Py_INCREF (Py_None);\n";
7161 pr " py_r = Py_None;\n"
7163 | RBool _ -> pr " py_r = PyInt_FromLong ((long) r);\n"
7164 | RInt64 _ -> pr " py_r = PyLong_FromLongLong (r);\n"
7165 | RConstString _ -> pr " py_r = PyString_FromString (r);\n"
7166 | RConstOptString _ ->
7168 pr " py_r = PyString_FromString (r);\n";
7170 pr " Py_INCREF (Py_None);\n";
7171 pr " py_r = Py_None;\n";
7174 pr " py_r = PyString_FromString (r);\n";
7177 pr " py_r = put_string_list (r);\n";
7178 pr " free_strings (r);\n"
7179 | RStruct (_, typ) ->
7180 pr " py_r = put_%s (r);\n" typ;
7181 pr " guestfs_free_%s (r);\n" typ
7182 | RStructList (_, typ) ->
7183 pr " py_r = put_%s_list (r);\n" typ;
7184 pr " guestfs_free_%s_list (r);\n" typ
7186 pr " py_r = put_table (r);\n";
7187 pr " free_strings (r);\n"
7189 pr " py_r = PyString_FromStringAndSize (r, size);\n";
7193 pr " return py_r;\n";
7198 (* Table of functions. *)
7199 pr "static PyMethodDef methods[] = {\n";
7200 pr " { (char *) \"create\", py_guestfs_create, METH_VARARGS, NULL },\n";
7201 pr " { (char *) \"close\", py_guestfs_close, METH_VARARGS, NULL },\n";
7203 fun (name, _, _, _, _, _, _) ->
7204 pr " { (char *) \"%s\", py_guestfs_%s, METH_VARARGS, NULL },\n"
7207 pr " { NULL, NULL, 0, NULL }\n";
7211 (* Init function. *)
7214 initlibguestfsmod (void)
7216 static int initialized = 0;
7218 if (initialized) return;
7219 Py_InitModule ((char *) \"libguestfsmod\", methods);
7224 (* Generate Python module. *)
7225 and generate_python_py () =
7226 generate_header HashStyle LGPLv2;
7229 u\"\"\"Python bindings for libguestfs
7232 g = guestfs.GuestFS ()
7233 g.add_drive (\"guest.img\")
7236 parts = g.list_partitions ()
7238 The guestfs module provides a Python binding to the libguestfs API
7239 for examining and modifying virtual machine disk images.
7241 Amongst the things this is good for: making batch configuration
7242 changes to guests, getting disk used/free statistics (see also:
7243 virt-df), migrating between virtualization systems (see also:
7244 virt-p2v), performing partial backups, performing partial guest
7245 clones, cloning guests and changing registry/UUID/hostname info, and
7248 Libguestfs uses Linux kernel and qemu code, and can access any type of
7249 guest filesystem that Linux and qemu can, including but not limited
7250 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
7251 schemes, qcow, qcow2, vmdk.
7253 Libguestfs provides ways to enumerate guest storage (eg. partitions,
7254 LVs, what filesystem is in each LV, etc.). It can also run commands
7255 in the context of the guest. Also you can access filesystems over FTP.
7257 Errors which happen while using the API are turned into Python
7258 RuntimeError exceptions.
7260 To create a guestfs handle you usually have to perform the following
7263 # Create the handle, call add_drive at least once, and possibly
7264 # several times if the guest has multiple block devices:
7265 g = guestfs.GuestFS ()
7266 g.add_drive (\"guest.img\")
7268 # Launch the qemu subprocess and wait for it to become ready:
7272 # Now you can issue commands, for example:
7277 import libguestfsmod
7280 \"\"\"Instances of this class are libguestfs API handles.\"\"\"
7282 def __init__ (self):
7283 \"\"\"Create a new libguestfs handle.\"\"\"
7284 self._o = libguestfsmod.create ()
7287 libguestfsmod.close (self._o)
7292 fun (name, style, _, flags, _, _, longdesc) ->
7294 generate_py_call_args ~handle:"self" (snd style);
7297 if not (List.mem NotInDocs flags) then (
7298 let doc = replace_str longdesc "C<guestfs_" "C<g." in
7300 match fst style with
7301 | RErr | RInt _ | RInt64 _ | RBool _
7302 | RConstOptString _ | RConstString _
7303 | RString _ | RBufferOut _ -> doc
7305 doc ^ "\n\nThis function returns a list of strings."
7306 | RStruct (_, typ) ->
7307 doc ^ sprintf "\n\nThis function returns a dictionary, with keys matching the various fields in the guestfs_%s structure." typ
7308 | RStructList (_, typ) ->
7309 doc ^ sprintf "\n\nThis function returns a list of %ss. Each %s is represented as a dictionary." typ typ
7311 doc ^ "\n\nThis function returns a dictionary." in
7313 if List.mem ProtocolLimitWarning flags then
7314 doc ^ "\n\n" ^ protocol_limit_warning
7317 if List.mem DangerWillRobinson flags then
7318 doc ^ "\n\n" ^ danger_will_robinson
7321 match deprecation_notice flags with
7323 | Some txt -> doc ^ "\n\n" ^ txt in
7324 let doc = pod2text ~width:60 name doc in
7325 let doc = List.map (fun line -> replace_str line "\\" "\\\\") doc in
7326 let doc = String.concat "\n " doc in
7327 pr " u\"\"\"%s\"\"\"\n" doc;
7329 pr " return libguestfsmod.%s " name;
7330 generate_py_call_args ~handle:"self._o" (snd style);
7335 (* Generate Python call arguments, eg "(handle, foo, bar)" *)
7336 and generate_py_call_args ~handle args =
7338 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
7341 (* Useful if you need the longdesc POD text as plain text. Returns a
7344 * Because this is very slow (the slowest part of autogeneration),
7345 * we memoize the results.
7347 and pod2text ~width name longdesc =
7348 let key = width, name, longdesc in
7349 try Hashtbl.find pod2text_memo key
7351 let filename, chan = Filename.open_temp_file "gen" ".tmp" in
7352 fprintf chan "=head1 %s\n\n%s\n" name longdesc;
7354 let cmd = sprintf "pod2text -w %d %s" width (Filename.quote filename) in
7355 let chan = Unix.open_process_in cmd in
7356 let lines = ref [] in
7358 let line = input_line chan in
7359 if i = 1 then (* discard the first line of output *)
7362 let line = triml line in
7363 lines := line :: !lines;
7366 let lines = try loop 1 with End_of_file -> List.rev !lines in
7367 Unix.unlink filename;
7368 (match Unix.close_process_in chan with
7369 | Unix.WEXITED 0 -> ()
7371 failwithf "pod2text: process exited with non-zero status (%d)" i
7372 | Unix.WSIGNALED i | Unix.WSTOPPED i ->
7373 failwithf "pod2text: process signalled or stopped by signal %d" i
7375 Hashtbl.add pod2text_memo key lines;
7376 let chan = open_out pod2text_memo_filename in
7377 output_value chan pod2text_memo;
7381 (* Generate ruby bindings. *)
7382 and generate_ruby_c () =
7383 generate_header CStyle LGPLv2;
7391 #include \"guestfs.h\"
7393 #include \"extconf.h\"
7395 /* For Ruby < 1.9 */
7397 #define RARRAY_LEN(r) (RARRAY((r))->len)
7400 static VALUE m_guestfs; /* guestfs module */
7401 static VALUE c_guestfs; /* guestfs_h handle */
7402 static VALUE e_Error; /* used for all errors */
7404 static void ruby_guestfs_free (void *p)
7407 guestfs_close ((guestfs_h *) p);
7410 static VALUE ruby_guestfs_create (VALUE m)
7414 g = guestfs_create ();
7416 rb_raise (e_Error, \"failed to create guestfs handle\");
7418 /* Don't print error messages to stderr by default. */
7419 guestfs_set_error_handler (g, NULL, NULL);
7421 /* Wrap it, and make sure the close function is called when the
7424 return Data_Wrap_Struct (c_guestfs, NULL, ruby_guestfs_free, g);
7427 static VALUE ruby_guestfs_close (VALUE gv)
7430 Data_Get_Struct (gv, guestfs_h, g);
7432 ruby_guestfs_free (g);
7433 DATA_PTR (gv) = NULL;
7441 fun (name, style, _, _, _, _, _) ->
7442 pr "static VALUE ruby_guestfs_%s (VALUE gv" name;
7443 List.iter (fun arg -> pr ", VALUE %sv" (name_of_argt arg)) (snd style);
7446 pr " guestfs_h *g;\n";
7447 pr " Data_Get_Struct (gv, guestfs_h, g);\n";
7449 pr " rb_raise (rb_eArgError, \"%%s: used handle after closing it\", \"%s\");\n"
7455 | String n | FileIn n | FileOut n ->
7456 pr " Check_Type (%sv, T_STRING);\n" n;
7457 pr " const char *%s = StringValueCStr (%sv);\n" n n;
7459 pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
7460 pr " \"%s\", \"%s\");\n" n name
7462 pr " const char *%s = !NIL_P (%sv) ? StringValueCStr (%sv) : NULL;\n" n n n
7464 pr " char **%s;\n" n;
7465 pr " Check_Type (%sv, T_ARRAY);\n" n;
7467 pr " int i, len;\n";
7468 pr " len = RARRAY_LEN (%sv);\n" n;
7469 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (len+1));\n"
7471 pr " for (i = 0; i < len; ++i) {\n";
7472 pr " VALUE v = rb_ary_entry (%sv, i);\n" n;
7473 pr " %s[i] = StringValueCStr (v);\n" n;
7475 pr " %s[len] = NULL;\n" n;
7478 pr " int %s = RTEST (%sv);\n" n n
7480 pr " int %s = NUM2INT (%sv);\n" n n
7485 match fst style with
7486 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
7487 | RInt64 _ -> pr " int64_t r;\n"; "-1"
7488 | RConstString _ | RConstOptString _ ->
7489 pr " const char *r;\n"; "NULL"
7490 | RString _ -> pr " char *r;\n"; "NULL"
7491 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
7492 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
7493 | RStructList (_, typ) ->
7494 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
7497 pr " size_t size;\n";
7501 pr " r = guestfs_%s " name;
7502 generate_c_call_args ~handle:"g" style;
7507 | String _ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ -> ()
7509 pr " free (%s);\n" n
7512 pr " if (r == %s)\n" error_code;
7513 pr " rb_raise (e_Error, \"%%s\", guestfs_last_error (g));\n";
7516 (match fst style with
7518 pr " return Qnil;\n"
7519 | RInt _ | RBool _ ->
7520 pr " return INT2NUM (r);\n"
7522 pr " return ULL2NUM (r);\n"
7524 pr " return rb_str_new2 (r);\n";
7525 | RConstOptString _ ->
7527 pr " return rb_str_new2 (r);\n";
7529 pr " return Qnil;\n";
7531 pr " VALUE rv = rb_str_new2 (r);\n";
7535 pr " int i, len = 0;\n";
7536 pr " for (i = 0; r[i] != NULL; ++i) len++;\n";
7537 pr " VALUE rv = rb_ary_new2 (len);\n";
7538 pr " for (i = 0; r[i] != NULL; ++i) {\n";
7539 pr " rb_ary_push (rv, rb_str_new2 (r[i]));\n";
7540 pr " free (r[i]);\n";
7544 | RStruct (_, typ) ->
7545 let cols = cols_of_struct typ in
7546 generate_ruby_struct_code typ cols
7547 | RStructList (_, typ) ->
7548 let cols = cols_of_struct typ in
7549 generate_ruby_struct_list_code typ cols
7551 pr " VALUE rv = rb_hash_new ();\n";
7553 pr " for (i = 0; r[i] != NULL; i+=2) {\n";
7554 pr " rb_hash_aset (rv, rb_str_new2 (r[i]), rb_str_new2 (r[i+1]));\n";
7555 pr " free (r[i]);\n";
7556 pr " free (r[i+1]);\n";
7561 pr " VALUE rv = rb_str_new (r, size);\n";
7571 /* Initialize the module. */
7572 void Init__guestfs ()
7574 m_guestfs = rb_define_module (\"Guestfs\");
7575 c_guestfs = rb_define_class_under (m_guestfs, \"Guestfs\", rb_cObject);
7576 e_Error = rb_define_class_under (m_guestfs, \"Error\", rb_eStandardError);
7578 rb_define_module_function (m_guestfs, \"create\", ruby_guestfs_create, 0);
7579 rb_define_method (c_guestfs, \"close\", ruby_guestfs_close, 0);
7582 (* Define the rest of the methods. *)
7584 fun (name, style, _, _, _, _, _) ->
7585 pr " rb_define_method (c_guestfs, \"%s\",\n" name;
7586 pr " ruby_guestfs_%s, %d);\n" name (List.length (snd style))
7591 (* Ruby code to return a struct. *)
7592 and generate_ruby_struct_code typ cols =
7593 pr " VALUE rv = rb_hash_new ();\n";
7597 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new2 (r->%s));\n" name name
7599 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, r->%s_len));\n" name name name
7601 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, 32));\n" name name
7602 | name, (FBytes|FUInt64) ->
7603 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
7605 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), LL2NUM (r->%s));\n" name name
7607 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), UINT2NUM (r->%s));\n" name name
7609 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), INT2NUM (r->%s));\n" name name
7610 | name, FOptPercent ->
7611 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_dbl2big (r->%s));\n" name name
7612 | name, FChar -> (* XXX wrong? *)
7613 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
7615 pr " guestfs_free_%s (r);\n" typ;
7618 (* Ruby code to return a struct list. *)
7619 and generate_ruby_struct_list_code typ cols =
7620 pr " VALUE rv = rb_ary_new2 (r->len);\n";
7622 pr " for (i = 0; i < r->len; ++i) {\n";
7623 pr " VALUE hv = rb_hash_new ();\n";
7627 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new2 (r->val[i].%s));\n" name name
7629 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
7631 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, 32));\n" name name
7632 | name, (FBytes|FUInt64) ->
7633 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
7635 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), LL2NUM (r->val[i].%s));\n" name name
7637 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), UINT2NUM (r->val[i].%s));\n" name name
7639 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), INT2NUM (r->val[i].%s));\n" name name
7640 | name, FOptPercent ->
7641 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_dbl2big (r->val[i].%s));\n" name name
7642 | name, FChar -> (* XXX wrong? *)
7643 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
7645 pr " rb_ary_push (rv, hv);\n";
7647 pr " guestfs_free_%s_list (r);\n" typ;
7650 (* Generate Java bindings GuestFS.java file. *)
7651 and generate_java_java () =
7652 generate_header CStyle LGPLv2;
7655 package com.redhat.et.libguestfs;
7657 import java.util.HashMap;
7658 import com.redhat.et.libguestfs.LibGuestFSException;
7659 import com.redhat.et.libguestfs.PV;
7660 import com.redhat.et.libguestfs.VG;
7661 import com.redhat.et.libguestfs.LV;
7662 import com.redhat.et.libguestfs.Stat;
7663 import com.redhat.et.libguestfs.StatVFS;
7664 import com.redhat.et.libguestfs.IntBool;
7665 import com.redhat.et.libguestfs.Dirent;
7668 * The GuestFS object is a libguestfs handle.
7672 public class GuestFS {
7673 // Load the native code.
7675 System.loadLibrary (\"guestfs_jni\");
7679 * The native guestfs_h pointer.
7684 * Create a libguestfs handle.
7686 * @throws LibGuestFSException
7688 public GuestFS () throws LibGuestFSException
7692 private native long _create () throws LibGuestFSException;
7695 * Close a libguestfs handle.
7697 * You can also leave handles to be collected by the garbage
7698 * collector, but this method ensures that the resources used
7699 * by the handle are freed up immediately. If you call any
7700 * other methods after closing the handle, you will get an
7703 * @throws LibGuestFSException
7705 public void close () throws LibGuestFSException
7711 private native void _close (long g) throws LibGuestFSException;
7713 public void finalize () throws LibGuestFSException
7721 fun (name, style, _, flags, _, shortdesc, longdesc) ->
7722 if not (List.mem NotInDocs flags); then (
7723 let doc = replace_str longdesc "C<guestfs_" "C<g." in
7725 if List.mem ProtocolLimitWarning flags then
7726 doc ^ "\n\n" ^ protocol_limit_warning
7729 if List.mem DangerWillRobinson flags then
7730 doc ^ "\n\n" ^ danger_will_robinson
7733 match deprecation_notice flags with
7735 | Some txt -> doc ^ "\n\n" ^ txt in
7736 let doc = pod2text ~width:60 name doc in
7737 let doc = List.map ( (* RHBZ#501883 *)
7740 | nonempty -> nonempty
7742 let doc = String.concat "\n * " doc in
7745 pr " * %s\n" shortdesc;
7748 pr " * @throws LibGuestFSException\n";
7752 generate_java_prototype ~public:true ~semicolon:false name style;
7755 pr " if (g == 0)\n";
7756 pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
7759 if fst style <> RErr then pr "return ";
7761 generate_java_call_args ~handle:"g" (snd style);
7765 generate_java_prototype ~privat:true ~native:true name style;
7772 (* Generate Java call arguments, eg "(handle, foo, bar)" *)
7773 and generate_java_call_args ~handle args =
7775 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
7778 and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
7779 ?(semicolon=true) name style =
7780 if privat then pr "private ";
7781 if public then pr "public ";
7782 if native then pr "native ";
7785 (match fst style with
7786 | RErr -> pr "void ";
7787 | RInt _ -> pr "int ";
7788 | RInt64 _ -> pr "long ";
7789 | RBool _ -> pr "boolean ";
7790 | RConstString _ | RConstOptString _ | RString _
7791 | RBufferOut _ -> pr "String ";
7792 | RStringList _ -> pr "String[] ";
7793 | RStruct (_, typ) ->
7794 let name = java_name_of_struct typ in
7796 | RStructList (_, typ) ->
7797 let name = java_name_of_struct typ in
7799 | RHashtable _ -> pr "HashMap<String,String> ";
7802 if native then pr "_%s " name else pr "%s " name;
7804 let needs_comma = ref false in
7813 if !needs_comma then pr ", ";
7814 needs_comma := true;
7831 pr " throws LibGuestFSException";
7832 if semicolon then pr ";"
7834 and generate_java_struct jtyp cols =
7835 generate_header CStyle LGPLv2;
7838 package com.redhat.et.libguestfs;
7841 * Libguestfs %s structure.
7853 | name, FBuffer -> pr " public String %s;\n" name
7854 | name, (FBytes|FUInt64|FInt64) -> pr " public long %s;\n" name
7855 | name, (FUInt32|FInt32) -> pr " public int %s;\n" name
7856 | name, FChar -> pr " public char %s;\n" name
7857 | name, FOptPercent ->
7858 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
7859 pr " public float %s;\n" name
7864 and generate_java_c () =
7865 generate_header CStyle LGPLv2;
7872 #include \"com_redhat_et_libguestfs_GuestFS.h\"
7873 #include \"guestfs.h\"
7875 /* Note that this function returns. The exception is not thrown
7876 * until after the wrapper function returns.
7879 throw_exception (JNIEnv *env, const char *msg)
7882 cl = (*env)->FindClass (env,
7883 \"com/redhat/et/libguestfs/LibGuestFSException\");
7884 (*env)->ThrowNew (env, cl, msg);
7887 JNIEXPORT jlong JNICALL
7888 Java_com_redhat_et_libguestfs_GuestFS__1create
7889 (JNIEnv *env, jobject obj)
7893 g = guestfs_create ();
7895 throw_exception (env, \"GuestFS.create: failed to allocate handle\");
7898 guestfs_set_error_handler (g, NULL, NULL);
7899 return (jlong) (long) g;
7902 JNIEXPORT void JNICALL
7903 Java_com_redhat_et_libguestfs_GuestFS__1close
7904 (JNIEnv *env, jobject obj, jlong jg)
7906 guestfs_h *g = (guestfs_h *) (long) jg;
7913 fun (name, style, _, _, _, _, _) ->
7915 (match fst style with
7916 | RErr -> pr "void ";
7917 | RInt _ -> pr "jint ";
7918 | RInt64 _ -> pr "jlong ";
7919 | RBool _ -> pr "jboolean ";
7920 | RConstString _ | RConstOptString _ | RString _
7921 | RBufferOut _ -> pr "jstring ";
7922 | RStruct _ | RHashtable _ ->
7924 | RStringList _ | RStructList _ ->
7928 pr "Java_com_redhat_et_libguestfs_GuestFS_";
7929 pr "%s" (replace_str ("_" ^ name) "_" "_1");
7931 pr " (JNIEnv *env, jobject obj, jlong jg";
7938 pr ", jstring j%s" n
7940 pr ", jobjectArray j%s" n
7942 pr ", jboolean j%s" n
7948 pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
7949 let error_code, no_ret =
7950 match fst style with
7951 | RErr -> pr " int r;\n"; "-1", ""
7953 | RInt _ -> pr " int r;\n"; "-1", "0"
7954 | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
7955 | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
7956 | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
7958 pr " jstring jr;\n";
7959 pr " char *r;\n"; "NULL", "NULL"
7961 pr " jobjectArray jr;\n";
7964 pr " jstring jstr;\n";
7965 pr " char **r;\n"; "NULL", "NULL"
7966 | RStruct (_, typ) ->
7967 pr " jobject jr;\n";
7969 pr " jfieldID fl;\n";
7970 pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
7971 | RStructList (_, typ) ->
7972 pr " jobjectArray jr;\n";
7974 pr " jfieldID fl;\n";
7975 pr " jobject jfl;\n";
7976 pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
7977 | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
7979 pr " jstring jr;\n";
7981 pr " size_t size;\n";
7989 pr " const char *%s;\n" n
7991 pr " int %s_len;\n" n;
7992 pr " const char **%s;\n" n
7999 (match fst style with
8000 | RStringList _ | RStructList _ -> true
8001 | RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
8003 | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
8004 List.exists (function StringList _ -> true | _ -> false) (snd style) in
8010 (* Get the parameters. *)
8016 pr " %s = (*env)->GetStringUTFChars (env, j%s, NULL);\n" n n
8018 (* This is completely undocumented, but Java null becomes
8021 pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
8023 pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
8024 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (%s_len+1));\n" n n;
8025 pr " for (i = 0; i < %s_len; ++i) {\n" n;
8026 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
8028 pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
8030 pr " %s[%s_len] = NULL;\n" n n;
8033 pr " %s = j%s;\n" n n
8036 (* Make the call. *)
8037 pr " r = guestfs_%s " name;
8038 generate_c_call_args ~handle:"g" style;
8041 (* Release the parameters. *)
8047 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
8050 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
8052 pr " for (i = 0; i < %s_len; ++i) {\n" n;
8053 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
8055 pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
8057 pr " free (%s);\n" n
8062 (* Check for errors. *)
8063 pr " if (r == %s) {\n" error_code;
8064 pr " throw_exception (env, guestfs_last_error (g));\n";
8065 pr " return %s;\n" no_ret;
8069 (match fst style with
8071 | RInt _ -> pr " return (jint) r;\n"
8072 | RBool _ -> pr " return (jboolean) r;\n"
8073 | RInt64 _ -> pr " return (jlong) r;\n"
8074 | RConstString _ -> pr " return (*env)->NewStringUTF (env, r);\n"
8075 | RConstOptString _ ->
8076 pr " return (*env)->NewStringUTF (env, r); /* XXX r NULL? */\n"
8078 pr " jr = (*env)->NewStringUTF (env, r);\n";
8082 pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
8083 pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
8084 pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
8085 pr " jr = (*env)->NewObjectArray (env, r_len, cl, jstr);\n";
8086 pr " for (i = 0; i < r_len; ++i) {\n";
8087 pr " jstr = (*env)->NewStringUTF (env, r[i]);\n";
8088 pr " (*env)->SetObjectArrayElement (env, jr, i, jstr);\n";
8089 pr " free (r[i]);\n";
8093 | RStruct (_, typ) ->
8094 let jtyp = java_name_of_struct typ in
8095 let cols = cols_of_struct typ in
8096 generate_java_struct_return typ jtyp cols
8097 | RStructList (_, typ) ->
8098 let jtyp = java_name_of_struct typ in
8099 let cols = cols_of_struct typ in
8100 generate_java_struct_list_return typ jtyp cols
8103 pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
8104 pr " return NULL;\n"
8106 pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
8115 and generate_java_struct_return typ jtyp cols =
8116 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
8117 pr " jr = (*env)->AllocObject (env, cl);\n";
8121 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8122 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, r->%s));\n" name;
8125 pr " char s[33];\n";
8126 pr " memcpy (s, r->%s, 32);\n" name;
8128 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8129 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
8133 pr " int len = r->%s_len;\n" name;
8134 pr " char s[len+1];\n";
8135 pr " memcpy (s, r->%s, len);\n" name;
8136 pr " s[len] = 0;\n";
8137 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8138 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
8140 | name, (FBytes|FUInt64|FInt64) ->
8141 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
8142 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
8143 | name, (FUInt32|FInt32) ->
8144 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
8145 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
8146 | name, FOptPercent ->
8147 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
8148 pr " (*env)->SetFloatField (env, jr, fl, r->%s);\n" name;
8150 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
8151 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
8156 and generate_java_struct_list_return typ jtyp cols =
8157 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
8158 pr " jr = (*env)->NewObjectArray (env, r->len, cl, NULL);\n";
8159 pr " for (i = 0; i < r->len; ++i) {\n";
8160 pr " jfl = (*env)->AllocObject (env, cl);\n";
8164 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8165 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, r->val[i].%s));\n" name;
8168 pr " char s[33];\n";
8169 pr " memcpy (s, r->val[i].%s, 32);\n" name;
8171 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8172 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
8176 pr " int len = r->val[i].%s_len;\n" name;
8177 pr " char s[len+1];\n";
8178 pr " memcpy (s, r->val[i].%s, len);\n" name;
8179 pr " s[len] = 0;\n";
8180 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
8181 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
8183 | name, (FBytes|FUInt64|FInt64) ->
8184 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
8185 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
8186 | name, (FUInt32|FInt32) ->
8187 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
8188 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
8189 | name, FOptPercent ->
8190 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
8191 pr " (*env)->SetFloatField (env, jfl, fl, r->val[i].%s);\n" name;
8193 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
8194 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
8196 pr " (*env)->SetObjectArrayElement (env, jfl, i, jfl);\n";
8198 pr " guestfs_free_%s_list (r);\n" typ;
8201 and generate_haskell_hs () =
8202 generate_header HaskellStyle LGPLv2;
8204 (* XXX We only know how to generate partial FFI for Haskell
8205 * at the moment. Please help out!
8207 let can_generate style =
8211 | RInt64 _, _ -> true
8214 | RConstOptString _, _
8220 | RBufferOut _, _ -> false in
8223 {-# INCLUDE <guestfs.h> #-}
8224 {-# LANGUAGE ForeignFunctionInterface #-}
8229 (* List out the names of the actions we want to export. *)
8231 fun (name, style, _, _, _, _, _) ->
8232 if can_generate style then pr ",\n %s" name
8239 import Foreign.C.Types
8241 import Control.Exception
8242 import Data.Typeable
8244 data GuestfsS = GuestfsS -- represents the opaque C struct
8245 type GuestfsP = Ptr GuestfsS -- guestfs_h *
8246 type GuestfsH = ForeignPtr GuestfsS -- guestfs_h * with attached finalizer
8248 -- XXX define properly later XXX
8252 data IntBool = IntBool
8254 data StatVFS = StatVFS
8255 data Hashtable = Hashtable
8257 foreign import ccall unsafe \"guestfs_create\" c_create
8259 foreign import ccall unsafe \"&guestfs_close\" c_close
8260 :: FunPtr (GuestfsP -> IO ())
8261 foreign import ccall unsafe \"guestfs_set_error_handler\" c_set_error_handler
8262 :: GuestfsP -> Ptr CInt -> Ptr CInt -> IO ()
8264 create :: IO GuestfsH
8267 c_set_error_handler p nullPtr nullPtr
8268 h <- newForeignPtr c_close p
8271 foreign import ccall unsafe \"guestfs_last_error\" c_last_error
8272 :: GuestfsP -> IO CString
8274 -- last_error :: GuestfsH -> IO (Maybe String)
8275 -- last_error h = do
8276 -- str <- withForeignPtr h (\\p -> c_last_error p)
8277 -- maybePeek peekCString str
8279 last_error :: GuestfsH -> IO (String)
8281 str <- withForeignPtr h (\\p -> c_last_error p)
8283 then return \"no error\"
8284 else peekCString str
8288 (* Generate wrappers for each foreign function. *)
8290 fun (name, style, _, _, _, _, _) ->
8291 if can_generate style then (
8292 pr "foreign import ccall unsafe \"guestfs_%s\" c_%s\n" name name;
8294 generate_haskell_prototype ~handle:"GuestfsP" style;
8298 generate_haskell_prototype ~handle:"GuestfsH" ~hs:true style;
8300 pr "%s %s = do\n" name
8301 (String.concat " " ("h" :: List.map name_of_argt (snd style)));
8303 (* Convert pointer arguments using with* functions. *)
8308 | String n -> pr "withCString %s $ \\%s -> " n n
8309 | OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
8310 | StringList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
8311 | Bool _ | Int _ -> ()
8313 (* Convert integer arguments. *)
8317 | Bool n -> sprintf "(fromBool %s)" n
8318 | Int n -> sprintf "(fromIntegral %s)" n
8319 | FileIn n | FileOut n | String n | OptString n | StringList n -> n
8321 pr "withForeignPtr h (\\p -> c_%s %s)\n" name
8322 (String.concat " " ("p" :: args));
8323 (match fst style with
8324 | RErr | RInt _ | RInt64 _ | RBool _ ->
8325 pr " if (r == -1)\n";
8327 pr " err <- last_error h\n";
8329 | RConstString _ | RConstOptString _ | RString _
8330 | RStringList _ | RStruct _
8331 | RStructList _ | RHashtable _ | RBufferOut _ ->
8332 pr " if (r == nullPtr)\n";
8334 pr " err <- last_error h\n";
8337 (match fst style with
8339 pr " else return ()\n"
8341 pr " else return (fromIntegral r)\n"
8343 pr " else return (fromIntegral r)\n"
8345 pr " else return (toBool r)\n"
8354 pr " else return ()\n" (* XXXXXXXXXXXXXXXXXXXX *)
8360 and generate_haskell_prototype ~handle ?(hs = false) style =
8362 let string = if hs then "String" else "CString" in
8363 let int = if hs then "Int" else "CInt" in
8364 let bool = if hs then "Bool" else "CInt" in
8365 let int64 = if hs then "Integer" else "Int64" in
8369 | String _ -> pr "%s" string
8370 | OptString _ -> if hs then pr "Maybe String" else pr "CString"
8371 | StringList _ -> if hs then pr "[String]" else pr "Ptr CString"
8372 | Bool _ -> pr "%s" bool
8373 | Int _ -> pr "%s" int
8374 | FileIn _ -> pr "%s" string
8375 | FileOut _ -> pr "%s" string
8380 (match fst style with
8381 | RErr -> if not hs then pr "CInt"
8382 | RInt _ -> pr "%s" int
8383 | RInt64 _ -> pr "%s" int64
8384 | RBool _ -> pr "%s" bool
8385 | RConstString _ -> pr "%s" string
8386 | RConstOptString _ -> pr "Maybe %s" string
8387 | RString _ -> pr "%s" string
8388 | RStringList _ -> pr "[%s]" string
8389 | RStruct (_, typ) ->
8390 let name = java_name_of_struct typ in
8392 | RStructList (_, typ) ->
8393 let name = java_name_of_struct typ in
8395 | RHashtable _ -> pr "Hashtable"
8396 | RBufferOut _ -> pr "%s" string
8400 and generate_bindtests () =
8401 generate_header CStyle LGPLv2;
8406 #include <inttypes.h>
8409 #include \"guestfs.h\"
8410 #include \"guestfs_protocol.h\"
8412 #define error guestfs_error
8413 #define safe_calloc guestfs_safe_calloc
8414 #define safe_malloc guestfs_safe_malloc
8417 print_strings (char * const* const argv)
8422 for (argc = 0; argv[argc] != NULL; ++argc) {
8423 if (argc > 0) printf (\", \");
8424 printf (\"\\\"%%s\\\"\", argv[argc]);
8429 /* The test0 function prints its parameters to stdout. */
8433 match test_functions with
8434 | [] -> assert false
8435 | test0 :: tests -> test0, tests in
8438 let (name, style, _, _, _, _, _) = test0 in
8439 generate_prototype ~extern:false ~semicolon:false ~newline:true
8440 ~handle:"g" ~prefix:"guestfs_" name style;
8446 | FileOut n -> pr " printf (\"%%s\\n\", %s);\n" n
8447 | OptString n -> pr " printf (\"%%s\\n\", %s ? %s : \"null\");\n" n n
8448 | StringList n -> pr " print_strings (%s);\n" n
8449 | Bool n -> pr " printf (\"%%s\\n\", %s ? \"true\" : \"false\");\n" n
8450 | Int n -> pr " printf (\"%%d\\n\", %s);\n" n
8452 pr " /* Java changes stdout line buffering so we need this: */\n";
8453 pr " fflush (stdout);\n";
8459 fun (name, style, _, _, _, _, _) ->
8460 if String.sub name (String.length name - 3) 3 <> "err" then (
8461 pr "/* Test normal return. */\n";
8462 generate_prototype ~extern:false ~semicolon:false ~newline:true
8463 ~handle:"g" ~prefix:"guestfs_" name style;
8465 (match fst style with
8470 pr " sscanf (val, \"%%d\", &r);\n";
8474 pr " sscanf (val, \"%%\" SCNi64, &r);\n";
8477 pr " return strcmp (val, \"true\") == 0;\n"
8479 | RConstOptString _ ->
8480 (* Can't return the input string here. Return a static
8481 * string so we ensure we get a segfault if the caller
8484 pr " return \"static string\";\n"
8486 pr " return strdup (val);\n"
8488 pr " char **strs;\n";
8490 pr " sscanf (val, \"%%d\", &n);\n";
8491 pr " strs = safe_malloc (g, (n+1) * sizeof (char *));\n";
8492 pr " for (i = 0; i < n; ++i) {\n";
8493 pr " strs[i] = safe_malloc (g, 16);\n";
8494 pr " snprintf (strs[i], 16, \"%%d\", i);\n";
8496 pr " strs[n] = NULL;\n";
8497 pr " return strs;\n"
8498 | RStruct (_, typ) ->
8499 pr " struct guestfs_%s *r;\n" typ;
8500 pr " r = safe_calloc (g, sizeof *r, 1);\n";
8502 | RStructList (_, typ) ->
8503 pr " struct guestfs_%s_list *r;\n" typ;
8504 pr " r = safe_calloc (g, sizeof *r, 1);\n";
8505 pr " sscanf (val, \"%%d\", &r->len);\n";
8506 pr " r->val = safe_calloc (g, r->len, sizeof *r->val);\n";
8509 pr " char **strs;\n";
8511 pr " sscanf (val, \"%%d\", &n);\n";
8512 pr " strs = safe_malloc (g, (n*2+1) * sizeof (*strs));\n";
8513 pr " for (i = 0; i < n; ++i) {\n";
8514 pr " strs[i*2] = safe_malloc (g, 16);\n";
8515 pr " strs[i*2+1] = safe_malloc (g, 16);\n";
8516 pr " snprintf (strs[i*2], 16, \"%%d\", i);\n";
8517 pr " snprintf (strs[i*2+1], 16, \"%%d\", i);\n";
8519 pr " strs[n*2] = NULL;\n";
8520 pr " return strs;\n"
8522 pr " return strdup (val);\n"
8527 pr "/* Test error return. */\n";
8528 generate_prototype ~extern:false ~semicolon:false ~newline:true
8529 ~handle:"g" ~prefix:"guestfs_" name style;
8531 pr " error (g, \"error\");\n";
8532 (match fst style with
8533 | RErr | RInt _ | RInt64 _ | RBool _ ->
8535 | RConstString _ | RConstOptString _
8536 | RString _ | RStringList _ | RStruct _
8540 pr " return NULL;\n"
8547 and generate_ocaml_bindtests () =
8548 generate_header OCamlStyle GPLv2;
8552 let g = Guestfs.create () in
8559 | CallString s -> "\"" ^ s ^ "\""
8560 | CallOptString None -> "None"
8561 | CallOptString (Some s) -> sprintf "(Some \"%s\")" s
8562 | CallStringList xs ->
8563 "[|" ^ String.concat ";" (List.map (sprintf "\"%s\"") xs) ^ "|]"
8564 | CallInt i when i >= 0 -> string_of_int i
8565 | CallInt i (* when i < 0 *) -> "(" ^ string_of_int i ^ ")"
8566 | CallBool b -> string_of_bool b
8571 generate_lang_bindtests (
8572 fun f args -> pr " Guestfs.%s g %s;\n" f (mkargs args)
8575 pr "print_endline \"EOF\"\n"
8577 and generate_perl_bindtests () =
8578 pr "#!/usr/bin/perl -w\n";
8579 generate_header HashStyle GPLv2;
8586 my $g = Sys::Guestfs->new ();
8590 String.concat ", " (
8593 | CallString s -> "\"" ^ s ^ "\""
8594 | CallOptString None -> "undef"
8595 | CallOptString (Some s) -> sprintf "\"%s\"" s
8596 | CallStringList xs ->
8597 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
8598 | CallInt i -> string_of_int i
8599 | CallBool b -> if b then "1" else "0"
8604 generate_lang_bindtests (
8605 fun f args -> pr "$g->%s (%s);\n" f (mkargs args)
8608 pr "print \"EOF\\n\"\n"
8610 and generate_python_bindtests () =
8611 generate_header HashStyle GPLv2;
8616 g = guestfs.GuestFS ()
8620 String.concat ", " (
8623 | CallString s -> "\"" ^ s ^ "\""
8624 | CallOptString None -> "None"
8625 | CallOptString (Some s) -> sprintf "\"%s\"" s
8626 | CallStringList xs ->
8627 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
8628 | CallInt i -> string_of_int i
8629 | CallBool b -> if b then "1" else "0"
8634 generate_lang_bindtests (
8635 fun f args -> pr "g.%s (%s)\n" f (mkargs args)
8638 pr "print \"EOF\"\n"
8640 and generate_ruby_bindtests () =
8641 generate_header HashStyle GPLv2;
8646 g = Guestfs::create()
8650 String.concat ", " (
8653 | CallString s -> "\"" ^ s ^ "\""
8654 | CallOptString None -> "nil"
8655 | CallOptString (Some s) -> sprintf "\"%s\"" s
8656 | CallStringList xs ->
8657 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
8658 | CallInt i -> string_of_int i
8659 | CallBool b -> string_of_bool b
8664 generate_lang_bindtests (
8665 fun f args -> pr "g.%s(%s)\n" f (mkargs args)
8668 pr "print \"EOF\\n\"\n"
8670 and generate_java_bindtests () =
8671 generate_header CStyle GPLv2;
8674 import com.redhat.et.libguestfs.*;
8676 public class Bindtests {
8677 public static void main (String[] argv)
8680 GuestFS g = new GuestFS ();
8684 String.concat ", " (
8687 | CallString s -> "\"" ^ s ^ "\""
8688 | CallOptString None -> "null"
8689 | CallOptString (Some s) -> sprintf "\"%s\"" s
8690 | CallStringList xs ->
8692 String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "}"
8693 | CallInt i -> string_of_int i
8694 | CallBool b -> string_of_bool b
8699 generate_lang_bindtests (
8700 fun f args -> pr " g.%s (%s);\n" f (mkargs args)
8704 System.out.println (\"EOF\");
8706 catch (Exception exn) {
8707 System.err.println (exn);
8714 and generate_haskell_bindtests () =
8715 generate_header HaskellStyle GPLv2;
8718 module Bindtests where
8719 import qualified Guestfs
8729 | CallString s -> "\"" ^ s ^ "\""
8730 | CallOptString None -> "Nothing"
8731 | CallOptString (Some s) -> sprintf "(Just \"%s\")" s
8732 | CallStringList xs ->
8733 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
8734 | CallInt i when i < 0 -> "(" ^ string_of_int i ^ ")"
8735 | CallInt i -> string_of_int i
8736 | CallBool true -> "True"
8737 | CallBool false -> "False"
8742 generate_lang_bindtests (
8743 fun f args -> pr " Guestfs.%s g %s\n" f (mkargs args)
8746 pr " putStrLn \"EOF\"\n"
8748 (* Language-independent bindings tests - we do it this way to
8749 * ensure there is parity in testing bindings across all languages.
8751 and generate_lang_bindtests call =
8752 call "test0" [CallString "abc"; CallOptString (Some "def");
8753 CallStringList []; CallBool false;
8754 CallInt 0; CallString "123"; CallString "456"];
8755 call "test0" [CallString "abc"; CallOptString None;
8756 CallStringList []; CallBool false;
8757 CallInt 0; CallString "123"; CallString "456"];
8758 call "test0" [CallString ""; CallOptString (Some "def");
8759 CallStringList []; CallBool false;
8760 CallInt 0; CallString "123"; CallString "456"];
8761 call "test0" [CallString ""; CallOptString (Some "");
8762 CallStringList []; CallBool false;
8763 CallInt 0; CallString "123"; CallString "456"];
8764 call "test0" [CallString "abc"; CallOptString (Some "def");
8765 CallStringList ["1"]; CallBool false;
8766 CallInt 0; CallString "123"; CallString "456"];
8767 call "test0" [CallString "abc"; CallOptString (Some "def");
8768 CallStringList ["1"; "2"]; CallBool false;
8769 CallInt 0; CallString "123"; CallString "456"];
8770 call "test0" [CallString "abc"; CallOptString (Some "def");
8771 CallStringList ["1"]; CallBool true;
8772 CallInt 0; CallString "123"; CallString "456"];
8773 call "test0" [CallString "abc"; CallOptString (Some "def");
8774 CallStringList ["1"]; CallBool false;
8775 CallInt (-1); CallString "123"; CallString "456"];
8776 call "test0" [CallString "abc"; CallOptString (Some "def");
8777 CallStringList ["1"]; CallBool false;
8778 CallInt (-2); CallString "123"; CallString "456"];
8779 call "test0" [CallString "abc"; CallOptString (Some "def");
8780 CallStringList ["1"]; CallBool false;
8781 CallInt 1; CallString "123"; CallString "456"];
8782 call "test0" [CallString "abc"; CallOptString (Some "def");
8783 CallStringList ["1"]; CallBool false;
8784 CallInt 2; CallString "123"; CallString "456"];
8785 call "test0" [CallString "abc"; CallOptString (Some "def");
8786 CallStringList ["1"]; CallBool false;
8787 CallInt 4095; CallString "123"; CallString "456"];
8788 call "test0" [CallString "abc"; CallOptString (Some "def");
8789 CallStringList ["1"]; CallBool false;
8790 CallInt 0; CallString ""; CallString ""]
8792 (* XXX Add here tests of the return and error functions. *)
8794 (* This is used to generate the src/MAX_PROC_NR file which
8795 * contains the maximum procedure number, a surrogate for the
8796 * ABI version number. See src/Makefile.am for the details.
8798 and generate_max_proc_nr () =
8799 let proc_nrs = List.map (
8800 fun (_, _, proc_nr, _, _, _, _) -> proc_nr
8801 ) daemon_functions in
8803 let max_proc_nr = List.fold_left max 0 proc_nrs in
8805 pr "%d\n" max_proc_nr
8807 let output_to filename =
8808 let filename_new = filename ^ ".new" in
8809 chan := open_out filename_new;
8814 (* Is the new file different from the current file? *)
8815 if Sys.file_exists filename && files_equal filename filename_new then
8816 Unix.unlink filename_new (* same, so skip it *)
8818 (* different, overwrite old one *)
8819 (try Unix.chmod filename 0o644 with Unix.Unix_error _ -> ());
8820 Unix.rename filename_new filename;
8821 Unix.chmod filename 0o444;
8822 printf "written %s\n%!" filename;
8831 if not (Sys.file_exists "HACKING") then (
8833 You are probably running this from the wrong directory.
8834 Run it from the top source directory using the command
8840 let close = output_to "src/guestfs_protocol.x" in
8844 let close = output_to "src/guestfs-structs.h" in
8845 generate_structs_h ();
8848 let close = output_to "src/guestfs-actions.h" in
8849 generate_actions_h ();
8852 let close = output_to "src/guestfs-actions.c" in
8853 generate_client_actions ();
8856 let close = output_to "daemon/actions.h" in
8857 generate_daemon_actions_h ();
8860 let close = output_to "daemon/stubs.c" in
8861 generate_daemon_actions ();
8864 let close = output_to "daemon/names.c" in
8865 generate_daemon_names ();
8868 let close = output_to "capitests/tests.c" in
8872 let close = output_to "src/guestfs-bindtests.c" in
8873 generate_bindtests ();
8876 let close = output_to "fish/cmds.c" in
8877 generate_fish_cmds ();
8880 let close = output_to "fish/completion.c" in
8881 generate_fish_completion ();
8884 let close = output_to "guestfs-structs.pod" in
8885 generate_structs_pod ();
8888 let close = output_to "guestfs-actions.pod" in
8889 generate_actions_pod ();
8892 let close = output_to "guestfish-actions.pod" in
8893 generate_fish_actions_pod ();
8896 let close = output_to "ocaml/guestfs.mli" in
8897 generate_ocaml_mli ();
8900 let close = output_to "ocaml/guestfs.ml" in
8901 generate_ocaml_ml ();
8904 let close = output_to "ocaml/guestfs_c_actions.c" in
8905 generate_ocaml_c ();
8908 let close = output_to "ocaml/bindtests.ml" in
8909 generate_ocaml_bindtests ();
8912 let close = output_to "perl/Guestfs.xs" in
8913 generate_perl_xs ();
8916 let close = output_to "perl/lib/Sys/Guestfs.pm" in
8917 generate_perl_pm ();
8920 let close = output_to "perl/bindtests.pl" in
8921 generate_perl_bindtests ();
8924 let close = output_to "python/guestfs-py.c" in
8925 generate_python_c ();
8928 let close = output_to "python/guestfs.py" in
8929 generate_python_py ();
8932 let close = output_to "python/bindtests.py" in
8933 generate_python_bindtests ();
8936 let close = output_to "ruby/ext/guestfs/_guestfs.c" in
8940 let close = output_to "ruby/bindtests.rb" in
8941 generate_ruby_bindtests ();
8944 let close = output_to "java/com/redhat/et/libguestfs/GuestFS.java" in
8945 generate_java_java ();
8950 let cols = cols_of_struct typ in
8951 let filename = sprintf "java/com/redhat/et/libguestfs/%s.java" jtyp in
8952 let close = output_to filename in
8953 generate_java_struct jtyp cols;
8957 let close = output_to "java/Makefile.inc" in
8958 pr "java_built_sources =";
8961 pr " com/redhat/et/libguestfs/%s.java" jtyp;
8963 pr " com/redhat/et/libguestfs/GuestFS.java\n";
8966 let close = output_to "java/com_redhat_et_libguestfs_GuestFS.c" in
8970 let close = output_to "java/Bindtests.java" in
8971 generate_java_bindtests ();
8974 let close = output_to "haskell/Guestfs.hs" in
8975 generate_haskell_hs ();
8978 let close = output_to "haskell/Bindtests.hs" in
8979 generate_haskell_bindtests ();
8982 let close = output_to "src/MAX_PROC_NR" in
8983 generate_max_proc_nr ();
8986 (* Always generate this file last, and unconditionally. It's used
8987 * by the Makefile to know when we must re-run the generator.
8989 let chan = open_out "src/stamp-generator" in