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.
47 (* "RInt" as a return value means an int which is -1 for error
48 * or any value >= 0 on success. Only use this for smallish
49 * positive ints (0 <= i < 2^30).
52 (* "RInt64" is the same as RInt, but is guaranteed to be able
53 * to return a full 64 bit value, _except_ that -1 means error
54 * (so -1 cannot be a valid, non-error return value).
57 (* "RBool" is a bool return value which can be true/false or
61 (* "RConstString" is a string that refers to a constant value.
62 * Try to avoid using this. In particular you cannot use this
63 * for values returned from the daemon, because there is no
64 * thread-safe way to return them in the C API.
66 | RConstString of string
67 (* "RString" and "RStringList" are caller-frees. *)
69 | RStringList of string
70 (* "RStruct" is a function which returns a single named structure
71 * or an error indication (in C, a struct, and in other languages
72 * with varying representations, but usually very efficient). See
73 * after the function list below for the structures.
75 | RStruct of string * string (* name of retval, name of struct *)
76 (* "RStructList" is a function which returns either a list/array
77 * of structures (could be zero-length), or an error indication.
79 | RStructList of string * string (* name of retval, name of struct *)
80 (* Key-value pairs of untyped strings. Turns into a hashtable or
81 * dictionary in languages which support it. DON'T use this as a
82 * general "bucket" for results. Prefer a stronger typed return
83 * value if one is available, or write a custom struct. Don't use
84 * this if the list could potentially be very long, since it is
85 * inefficient. Keys should be unique. NULLs are not permitted.
87 | RHashtable of string
88 (* "RBufferOut" is handled almost exactly like RString, but
89 * it allows the string to contain arbitrary 8 bit data including
90 * ASCII NUL. In the C API this causes an implicit extra parameter
91 * to be added of type <size_t *size_r>. The extra parameter
92 * returns the actual size of the return buffer in bytes.
94 * Other programming languages support strings with arbitrary 8 bit
97 * At the RPC layer we have to use the opaque<> type instead of
98 * string<>. Returned data is still limited to the max message
101 | RBufferOut of string
103 and args = argt list (* Function parameters, guestfs handle is implicit. *)
105 (* Note in future we should allow a "variable args" parameter as
106 * the final parameter, to allow commands like
107 * chmod mode file [file(s)...]
108 * This is not implemented yet, but many commands (such as chmod)
109 * are currently defined with the argument order keeping this future
110 * possibility in mind.
113 | String of string (* const char *name, cannot be NULL *)
114 | OptString of string (* const char *name, may be NULL *)
115 | StringList of string(* list of strings (each string cannot be NULL) *)
116 | Bool of string (* boolean *)
117 | Int of string (* int (smallish ints, signed, <= 31 bits) *)
118 (* These are treated as filenames (simple string parameters) in
119 * the C API and bindings. But in the RPC protocol, we transfer
120 * the actual file content up to or down from the daemon.
121 * FileIn: local machine -> daemon (in request)
122 * FileOut: daemon -> local machine (in reply)
123 * In guestfish (only), the special name "-" means read from
124 * stdin or write to stdout.
129 (* Opaque buffer which can contain arbitrary 8 bit data.
130 * In the C API, this is expressed as <char *, int> pair.
131 * Most other languages have a string type which can contain
132 * ASCII NUL. We use whatever type is appropriate for each
134 * Buffers are limited by the total message size. To transfer
135 * large blocks of data, use FileIn/FileOut parameters instead.
136 * To return an arbitrary buffer, use RBufferOut.
142 | ProtocolLimitWarning (* display warning about protocol size limits *)
143 | DangerWillRobinson (* flags particularly dangerous commands *)
144 | FishAlias of string (* provide an alias for this cmd in guestfish *)
145 | FishAction of string (* call this function in guestfish *)
146 | NotInFish (* do not export via guestfish *)
147 | NotInDocs (* do not add this function to documentation *)
149 let protocol_limit_warning =
150 "Because of the message protocol, there is a transfer limit
151 of somewhere between 2MB and 4MB. To transfer large files you should use
154 let danger_will_robinson =
155 "B<This command is dangerous. Without careful use you
156 can easily destroy all your data>."
158 (* You can supply zero or as many tests as you want per API call.
160 * Note that the test environment has 3 block devices, of size 500MB,
161 * 50MB and 10MB (respectively /dev/sda, /dev/sdb, /dev/sdc), and
162 * a fourth squashfs block device with some known files on it (/dev/sdd).
164 * Note for partitioning purposes, the 500MB device has 1015 cylinders.
165 * Number of cylinders was 63 for IDE emulated disks with precisely
166 * the same size. How exactly this is calculated is a mystery.
168 * The squashfs block device (/dev/sdd) comes from images/test.sqsh.
170 * To be able to run the tests in a reasonable amount of time,
171 * the virtual machine and block devices are reused between tests.
172 * So don't try testing kill_subprocess :-x
174 * Between each test we blockdev-setrw, umount-all, lvm-remove-all.
176 * Don't assume anything about the previous contents of the block
177 * devices. Use 'Init*' to create some initial scenarios.
179 * You can add a prerequisite clause to any individual test. This
180 * is a run-time check, which, if it fails, causes the test to be
181 * skipped. Useful if testing a command which might not work on
182 * all variations of libguestfs builds. A test that has prerequisite
183 * of 'Always' is run unconditionally.
185 * In addition, packagers can skip individual tests by setting the
186 * environment variables: eg:
187 * SKIP_TEST_<CMD>_<NUM>=1 SKIP_TEST_COMMAND_3=1 (skips test #3 of command)
188 * SKIP_TEST_<CMD>=1 SKIP_TEST_ZEROFREE=1 (skips all zerofree tests)
190 type tests = (test_init * test_prereq * test) list
192 (* Run the command sequence and just expect nothing to fail. *)
194 (* Run the command sequence and expect the output of the final
195 * command to be the string.
197 | TestOutput of seq * string
198 (* Run the command sequence and expect the output of the final
199 * command to be the list of strings.
201 | TestOutputList of seq * string list
202 (* Run the command sequence and expect the output of the final
203 * command to be the list of block devices (could be either
204 * "/dev/sd.." or "/dev/hd.." form - we don't check the 5th
205 * character of each string).
207 | TestOutputListOfDevices of seq * string list
208 (* Run the command sequence and expect the output of the final
209 * command to be the integer.
211 | TestOutputInt of seq * int
212 (* Run the command sequence and expect the output of the final
213 * command to be <op> <int>, eg. ">=", "1".
215 | TestOutputIntOp of seq * string * int
216 (* Run the command sequence and expect the output of the final
217 * command to be a true value (!= 0 or != NULL).
219 | TestOutputTrue of seq
220 (* Run the command sequence and expect the output of the final
221 * command to be a false value (== 0 or == NULL, but not an error).
223 | TestOutputFalse of seq
224 (* Run the command sequence and expect the output of the final
225 * command to be a list of the given length (but don't care about
228 | TestOutputLength of seq * int
229 (* Run the command sequence and expect the output of the final
230 * command to be a structure.
232 | TestOutputStruct of seq * test_field_compare list
233 (* Run the command sequence and expect the final command (only)
236 | TestLastFail of seq
238 and test_field_compare =
239 | CompareWithInt of string * int
240 | CompareWithIntOp of string * string * int
241 | CompareWithString of string * string
242 | CompareFieldsIntEq of string * string
243 | CompareFieldsStrEq of string * string
245 (* Test prerequisites. *)
247 (* Test always runs. *)
249 (* Test is currently disabled - eg. it fails, or it tests some
250 * unimplemented feature.
253 (* 'string' is some C code (a function body) that should return
254 * true or false. The test will run if the code returns true.
257 (* As for 'If' but the test runs _unless_ the code returns true. *)
260 (* Some initial scenarios for testing. *)
262 (* Do nothing, block devices could contain random stuff including
263 * LVM PVs, and some filesystems might be mounted. This is usually
267 (* Block devices are empty and no filesystems are mounted. *)
269 (* /dev/sda contains a single partition /dev/sda1, which is formatted
270 * as ext2, empty [except for lost+found] and mounted on /.
271 * /dev/sdb and /dev/sdc may have random content.
276 * /dev/sda1 (is a PV):
277 * /dev/VG/LV (size 8MB):
278 * formatted as ext2, empty [except for lost+found], mounted on /
279 * /dev/sdb and /dev/sdc may have random content.
283 (* Sequence of commands for testing. *)
285 and cmd = string list
287 (* Note about long descriptions: When referring to another
288 * action, use the format C<guestfs_other> (ie. the full name of
289 * the C function). This will be replaced as appropriate in other
292 * Apart from that, long descriptions are just perldoc paragraphs.
295 (* These test functions are used in the language binding tests. *)
297 let test_all_args = [
300 StringList "strlist";
307 let test_all_rets = [
308 (* except for RErr, which is tested thoroughly elsewhere *)
309 "test0rint", RInt "valout";
310 "test0rint64", RInt64 "valout";
311 "test0rbool", RBool "valout";
312 "test0rconststring", RConstString "valout";
313 "test0rstring", RString "valout";
314 "test0rstringlist", RStringList "valout";
315 "test0rstruct", RStruct ("valout", "lvm_pv");
316 "test0rstructlist", RStructList ("valout", "lvm_pv");
317 "test0rhashtable", RHashtable "valout";
320 let test_functions = [
321 ("test0", (RErr, test_all_args), -1, [NotInFish; NotInDocs],
323 "internal test function - do not use",
325 This is an internal test function which is used to test whether
326 the automatically generated bindings can handle every possible
327 parameter type correctly.
329 It echos the contents of each parameter to stdout.
331 You probably don't want to call this function.");
335 [(name, (ret, [String "val"]), -1, [NotInFish; NotInDocs],
337 "internal test function - do not use",
339 This is an internal test function which is used to test whether
340 the automatically generated bindings can handle every possible
341 return type correctly.
343 It converts string C<val> to the return type.
345 You probably don't want to call this function.");
346 (name ^ "err", (ret, []), -1, [NotInFish; NotInDocs],
348 "internal test function - do not use",
350 This is an internal test function which is used to test whether
351 the automatically generated bindings can handle every possible
352 return type correctly.
354 This function always returns an error.
356 You probably don't want to call this function.")]
360 (* non_daemon_functions are any functions which don't get processed
361 * in the daemon, eg. functions for setting and getting local
362 * configuration values.
365 let non_daemon_functions = test_functions @ [
366 ("launch", (RErr, []), -1, [FishAlias "run"; FishAction "launch"],
368 "launch the qemu subprocess",
370 Internally libguestfs is implemented by running a virtual machine
373 You should call this after configuring the handle
374 (eg. adding drives) but before performing any actions.");
376 ("wait_ready", (RErr, []), -1, [NotInFish],
378 "wait until the qemu subprocess launches",
380 Internally libguestfs is implemented by running a virtual machine
383 You should call this after C<guestfs_launch> to wait for the launch
386 ("kill_subprocess", (RErr, []), -1, [],
388 "kill the qemu subprocess",
390 This kills the qemu subprocess. You should never need to call this.");
392 ("add_drive", (RErr, [String "filename"]), -1, [FishAlias "add"],
394 "add an image to examine or modify",
396 This function adds a virtual machine disk image C<filename> to the
397 guest. The first time you call this function, the disk appears as IDE
398 disk 0 (C</dev/sda>) in the guest, the second time as C</dev/sdb>, and
401 You don't necessarily need to be root when using libguestfs. However
402 you obviously do need sufficient permissions to access the filename
403 for whatever operations you want to perform (ie. read access if you
404 just want to read the image or write access if you want to modify the
407 This is equivalent to the qemu parameter
408 C<-drive file=filename,cache=off,if=...>.
410 Note that this call checks for the existence of C<filename>. This
411 stops you from specifying other types of drive which are supported
412 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
413 the general C<guestfs_config> call instead.");
415 ("add_cdrom", (RErr, [String "filename"]), -1, [FishAlias "cdrom"],
417 "add a CD-ROM disk image to examine",
419 This function adds a virtual CD-ROM disk image to the guest.
421 This is equivalent to the qemu parameter C<-cdrom filename>.
423 Note that this call checks for the existence of C<filename>. This
424 stops you from specifying other types of drive which are supported
425 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
426 the general C<guestfs_config> call instead.");
428 ("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
430 "add a drive in snapshot mode (read-only)",
432 This adds a drive in snapshot mode, making it effectively
435 Note that writes to the device are allowed, and will be seen for
436 the duration of the guestfs handle, but they are written
437 to a temporary file which is discarded as soon as the guestfs
438 handle is closed. We don't currently have any method to enable
439 changes to be committed, although qemu can support this.
441 This is equivalent to the qemu parameter
442 C<-drive file=filename,snapshot=on,if=...>.
444 Note that this call checks for the existence of C<filename>. This
445 stops you from specifying other types of drive which are supported
446 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
447 the general C<guestfs_config> call instead.");
449 ("config", (RErr, [String "qemuparam"; OptString "qemuvalue"]), -1, [],
451 "add qemu parameters",
453 This can be used to add arbitrary qemu command line parameters
454 of the form C<-param value>. Actually it's not quite arbitrary - we
455 prevent you from setting some parameters which would interfere with
456 parameters that we use.
458 The first character of C<param> string must be a C<-> (dash).
460 C<value> can be NULL.");
462 ("set_qemu", (RErr, [String "qemu"]), -1, [FishAlias "qemu"],
464 "set the qemu binary",
466 Set the qemu binary that we will use.
468 The default is chosen when the library was compiled by the
471 You can also override this by setting the C<LIBGUESTFS_QEMU>
472 environment variable.
474 Setting C<qemu> to C<NULL> restores the default qemu binary.");
476 ("get_qemu", (RConstString "qemu", []), -1, [],
477 [InitNone, Always, TestRun (
479 "get the qemu binary",
481 Return the current qemu binary.
483 This is always non-NULL. If it wasn't set already, then this will
484 return the default qemu binary name.");
486 ("set_path", (RErr, [String "path"]), -1, [FishAlias "path"],
488 "set the search path",
490 Set the path that libguestfs searches for kernel and initrd.img.
492 The default is C<$libdir/guestfs> unless overridden by setting
493 C<LIBGUESTFS_PATH> environment variable.
495 Setting C<path> to C<NULL> restores the default path.");
497 ("get_path", (RConstString "path", []), -1, [],
498 [InitNone, Always, TestRun (
500 "get the search path",
502 Return the current search path.
504 This is always non-NULL. If it wasn't set already, then this will
505 return the default path.");
507 ("set_append", (RErr, [String "append"]), -1, [FishAlias "append"],
509 "add options to kernel command line",
511 This function is used to add additional options to the
512 guest kernel command line.
514 The default is C<NULL> unless overridden by setting
515 C<LIBGUESTFS_APPEND> environment variable.
517 Setting C<append> to C<NULL> means I<no> additional options
518 are passed (libguestfs always adds a few of its own).");
520 ("get_append", (RConstString "append", []), -1, [],
521 (* This cannot be tested with the current framework. The
522 * function can return NULL in normal operations, which the
523 * test framework interprets as an error.
526 "get the additional kernel options",
528 Return the additional kernel options which are added to the
529 guest kernel command line.
531 If C<NULL> then no options are added.");
533 ("set_kernel", (RErr, [String "kernel"]), -1, [FishAlias "kernel"],
535 "override the normal appliance kernel",
537 This function lets you override the ordinary selection
538 of kernel used in the appliance.
540 The default is C<NULL> unless overridden by setting
541 C<LIBGUESTFS_KERNEL> environment variable.
543 Setting C<kernel> to C<NULL> means the ordinary appliance
544 kernel is selected by the usual means.");
546 ("get_kernel", (RConstString "kernel", []), -1, [],
547 (* This cannot be tested with the current framework. The
548 * function can return NULL in normal operations, which the
549 * test framework interprets as an error.
552 "get the override appliance kernel",
554 Return the override appliance kernel (see C<guestfs_set_kernel>).
556 If C<NULL> then the ordinary appliance kernel is used.");
558 ("set_autosync", (RErr, [Bool "autosync"]), -1, [FishAlias "autosync"],
562 If C<autosync> is true, this enables autosync. Libguestfs will make a
563 best effort attempt to run C<guestfs_umount_all> followed by
564 C<guestfs_sync> when the handle is closed
565 (also if the program exits without closing handles).
567 This is disabled by default (except in guestfish where it is
568 enabled by default).");
570 ("get_autosync", (RBool "autosync", []), -1, [],
571 [InitNone, Always, TestRun (
572 [["get_autosync"]])],
575 Get the autosync flag.");
577 ("set_verbose", (RErr, [Bool "verbose"]), -1, [FishAlias "verbose"],
581 If C<verbose> is true, this turns on verbose messages (to C<stderr>).
583 Verbose messages are disabled unless the environment variable
584 C<LIBGUESTFS_DEBUG> is defined and set to C<1>.");
586 ("get_verbose", (RBool "verbose", []), -1, [],
590 This returns the verbose messages flag.");
592 ("is_ready", (RBool "ready", []), -1, [],
593 [InitNone, Always, TestOutputTrue (
595 "is ready to accept commands",
597 This returns true iff this handle is ready to accept commands
598 (in the C<READY> state).
600 For more information on states, see L<guestfs(3)>.");
602 ("is_config", (RBool "config", []), -1, [],
603 [InitNone, Always, TestOutputFalse (
605 "is in configuration state",
607 This returns true iff this handle is being configured
608 (in the C<CONFIG> state).
610 For more information on states, see L<guestfs(3)>.");
612 ("is_launching", (RBool "launching", []), -1, [],
613 [InitNone, Always, TestOutputFalse (
614 [["is_launching"]])],
615 "is launching subprocess",
617 This returns true iff this handle is launching the subprocess
618 (in the C<LAUNCHING> state).
620 For more information on states, see L<guestfs(3)>.");
622 ("is_busy", (RBool "busy", []), -1, [],
623 [InitNone, Always, TestOutputFalse (
625 "is busy processing a command",
627 This returns true iff this handle is busy processing a command
628 (in the C<BUSY> state).
630 For more information on states, see L<guestfs(3)>.");
632 ("get_state", (RInt "state", []), -1, [],
634 "get the current state",
636 This returns the current state as an opaque integer. This is
637 only useful for printing debug and internal error messages.
639 For more information on states, see L<guestfs(3)>.");
641 ("set_busy", (RErr, []), -1, [NotInFish],
645 This sets the state to C<BUSY>. This is only used when implementing
646 actions using the low-level API.
648 For more information on states, see L<guestfs(3)>.");
650 ("set_ready", (RErr, []), -1, [NotInFish],
652 "set state to ready",
654 This sets the state to C<READY>. This is only used when implementing
655 actions using the low-level API.
657 For more information on states, see L<guestfs(3)>.");
659 ("end_busy", (RErr, []), -1, [NotInFish],
661 "leave the busy state",
663 This sets the state to C<READY>, or if in C<CONFIG> then it leaves the
664 state as is. This is only used when implementing
665 actions using the low-level API.
667 For more information on states, see L<guestfs(3)>.");
669 ("set_memsize", (RErr, [Int "memsize"]), -1, [FishAlias "memsize"],
670 [InitNone, Always, TestOutputInt (
671 [["set_memsize"; "500"];
672 ["get_memsize"]], 500)],
673 "set memory allocated to the qemu subprocess",
675 This sets the memory size in megabytes allocated to the
676 qemu subprocess. This only has any effect if called before
679 You can also change this by setting the environment
680 variable C<LIBGUESTFS_MEMSIZE> before the handle is
683 For more information on the architecture of libguestfs,
684 see L<guestfs(3)>.");
686 ("get_memsize", (RInt "memsize", []), -1, [],
687 [InitNone, Always, TestOutputIntOp (
688 [["get_memsize"]], ">=", 256)],
689 "get memory allocated to the qemu subprocess",
691 This gets the memory size in megabytes allocated to the
694 If C<guestfs_set_memsize> was not called
695 on this handle, and if C<LIBGUESTFS_MEMSIZE> was not set,
696 then this returns the compiled-in default value for memsize.
698 For more information on the architecture of libguestfs,
699 see L<guestfs(3)>.");
701 ("get_pid", (RInt "pid", []), -1, [FishAlias "pid"],
702 [InitNone, Always, TestOutputIntOp (
703 [["get_pid"]], ">=", 1)],
704 "get PID of qemu subprocess",
706 Return the process ID of the qemu subprocess. If there is no
707 qemu subprocess, then this will return an error.
709 This is an internal call used for debugging and testing.");
711 ("version", (RStruct ("version", "version"), []), -1, [],
712 [InitNone, Always, TestOutputStruct (
713 [["version"]], [CompareWithInt ("major", 1)])],
714 "get the library version number",
716 Return the libguestfs version number that the program is linked
719 Note that because of dynamic linking this is not necessarily
720 the version of libguestfs that you compiled against. You can
721 compile the program, and then at runtime dynamically link
722 against a completely different C<libguestfs.so> library.
724 This call was added in version C<1.0.58>. In previous
725 versions of libguestfs there was no way to get the version
726 number. From C code you can use ELF weak linking tricks to find out if
727 this symbol exists (if it doesn't, then it's an earlier version).
729 The call returns a structure with four elements. The first
730 three (C<major>, C<minor> and C<release>) are numbers and
731 correspond to the usual version triplet. The fourth element
732 (C<extra>) is a string and is normally empty, but may be
733 used for distro-specific information.
735 To construct the original version string:
736 C<$major.$minor.$release$extra>
738 I<Note:> Don't use this call to test for availability
739 of features. Distro backports makes this unreliable.");
743 (* daemon_functions are any functions which cause some action
744 * to take place in the daemon.
747 let daemon_functions = [
748 ("mount", (RErr, [String "device"; String "mountpoint"]), 1, [],
749 [InitEmpty, Always, TestOutput (
750 [["sfdiskM"; "/dev/sda"; ","];
751 ["mkfs"; "ext2"; "/dev/sda1"];
752 ["mount"; "/dev/sda1"; "/"];
753 ["write_file"; "/new"; "new file contents"; "0"];
754 ["cat"; "/new"]], "new file contents")],
755 "mount a guest disk at a position in the filesystem",
757 Mount a guest disk at a position in the filesystem. Block devices
758 are named C</dev/sda>, C</dev/sdb> and so on, as they were added to
759 the guest. If those block devices contain partitions, they will have
760 the usual names (eg. C</dev/sda1>). Also LVM C</dev/VG/LV>-style
763 The rules are the same as for L<mount(2)>: A filesystem must
764 first be mounted on C</> before others can be mounted. Other
765 filesystems can only be mounted on directories which already
768 The mounted filesystem is writable, if we have sufficient permissions
769 on the underlying device.
771 The filesystem options C<sync> and C<noatime> are set with this
772 call, in order to improve reliability.");
774 ("sync", (RErr, []), 2, [],
775 [ InitEmpty, Always, TestRun [["sync"]]],
776 "sync disks, writes are flushed through to the disk image",
778 This syncs the disk, so that any writes are flushed through to the
779 underlying disk image.
781 You should always call this if you have modified a disk image, before
782 closing the handle.");
784 ("touch", (RErr, [String "path"]), 3, [],
785 [InitBasicFS, Always, TestOutputTrue (
787 ["exists"; "/new"]])],
788 "update file timestamps or create a new file",
790 Touch acts like the L<touch(1)> command. It can be used to
791 update the timestamps on a file, or, if the file does not exist,
792 to create a new zero-length file.");
794 ("cat", (RString "content", [String "path"]), 4, [ProtocolLimitWarning],
795 [InitBasicFS, Always, TestOutput (
796 [["write_file"; "/new"; "new file contents"; "0"];
797 ["cat"; "/new"]], "new file contents")],
798 "list the contents of a file",
800 Return the contents of the file named C<path>.
802 Note that this function cannot correctly handle binary files
803 (specifically, files containing C<\\0> character which is treated
804 as end of string). For those you need to use the C<guestfs_read_file>
805 or C<guestfs_download> functions which have a more complex interface.");
807 ("ll", (RString "listing", [String "directory"]), 5, [],
808 [], (* XXX Tricky to test because it depends on the exact format
809 * of the 'ls -l' command, which changes between F10 and F11.
811 "list the files in a directory (long format)",
813 List the files in C<directory> (relative to the root directory,
814 there is no cwd) in the format of 'ls -la'.
816 This command is mostly useful for interactive sessions. It
817 is I<not> intended that you try to parse the output string.");
819 ("ls", (RStringList "listing", [String "directory"]), 6, [],
820 [InitBasicFS, Always, TestOutputList (
823 ["touch"; "/newest"];
824 ["ls"; "/"]], ["lost+found"; "new"; "newer"; "newest"])],
825 "list the files in a directory",
827 List the files in C<directory> (relative to the root directory,
828 there is no cwd). The '.' and '..' entries are not returned, but
829 hidden files are shown.
831 This command is mostly useful for interactive sessions. Programs
832 should probably use C<guestfs_readdir> instead.");
834 ("list_devices", (RStringList "devices", []), 7, [],
835 [InitEmpty, Always, TestOutputListOfDevices (
836 [["list_devices"]], ["/dev/sda"; "/dev/sdb"; "/dev/sdc"; "/dev/sdd"])],
837 "list the block devices",
839 List all the block devices.
841 The full block device names are returned, eg. C</dev/sda>");
843 ("list_partitions", (RStringList "partitions", []), 8, [],
844 [InitBasicFS, Always, TestOutputListOfDevices (
845 [["list_partitions"]], ["/dev/sda1"]);
846 InitEmpty, Always, TestOutputListOfDevices (
847 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
848 ["list_partitions"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
849 "list the partitions",
851 List all the partitions detected on all block devices.
853 The full partition device names are returned, eg. C</dev/sda1>
855 This does not return logical volumes. For that you will need to
856 call C<guestfs_lvs>.");
858 ("pvs", (RStringList "physvols", []), 9, [],
859 [InitBasicFSonLVM, Always, TestOutputListOfDevices (
860 [["pvs"]], ["/dev/sda1"]);
861 InitEmpty, Always, TestOutputListOfDevices (
862 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
863 ["pvcreate"; "/dev/sda1"];
864 ["pvcreate"; "/dev/sda2"];
865 ["pvcreate"; "/dev/sda3"];
866 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
867 "list the LVM physical volumes (PVs)",
869 List all the physical volumes detected. This is the equivalent
870 of the L<pvs(8)> command.
872 This returns a list of just the device names that contain
873 PVs (eg. C</dev/sda2>).
875 See also C<guestfs_pvs_full>.");
877 ("vgs", (RStringList "volgroups", []), 10, [],
878 [InitBasicFSonLVM, Always, TestOutputList (
880 InitEmpty, Always, TestOutputList (
881 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
882 ["pvcreate"; "/dev/sda1"];
883 ["pvcreate"; "/dev/sda2"];
884 ["pvcreate"; "/dev/sda3"];
885 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
886 ["vgcreate"; "VG2"; "/dev/sda3"];
887 ["vgs"]], ["VG1"; "VG2"])],
888 "list the LVM volume groups (VGs)",
890 List all the volumes groups detected. This is the equivalent
891 of the L<vgs(8)> command.
893 This returns a list of just the volume group names that were
894 detected (eg. C<VolGroup00>).
896 See also C<guestfs_vgs_full>.");
898 ("lvs", (RStringList "logvols", []), 11, [],
899 [InitBasicFSonLVM, Always, TestOutputList (
900 [["lvs"]], ["/dev/VG/LV"]);
901 InitEmpty, Always, TestOutputList (
902 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
903 ["pvcreate"; "/dev/sda1"];
904 ["pvcreate"; "/dev/sda2"];
905 ["pvcreate"; "/dev/sda3"];
906 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
907 ["vgcreate"; "VG2"; "/dev/sda3"];
908 ["lvcreate"; "LV1"; "VG1"; "50"];
909 ["lvcreate"; "LV2"; "VG1"; "50"];
910 ["lvcreate"; "LV3"; "VG2"; "50"];
911 ["lvs"]], ["/dev/VG1/LV1"; "/dev/VG1/LV2"; "/dev/VG2/LV3"])],
912 "list the LVM logical volumes (LVs)",
914 List all the logical volumes detected. This is the equivalent
915 of the L<lvs(8)> command.
917 This returns a list of the logical volume device names
918 (eg. C</dev/VolGroup00/LogVol00>).
920 See also C<guestfs_lvs_full>.");
922 ("pvs_full", (RStructList ("physvols", "lvm_pv"), []), 12, [],
923 [], (* XXX how to test? *)
924 "list the LVM physical volumes (PVs)",
926 List all the physical volumes detected. This is the equivalent
927 of the L<pvs(8)> command. The \"full\" version includes all fields.");
929 ("vgs_full", (RStructList ("volgroups", "lvm_vg"), []), 13, [],
930 [], (* XXX how to test? *)
931 "list the LVM volume groups (VGs)",
933 List all the volumes groups detected. This is the equivalent
934 of the L<vgs(8)> command. The \"full\" version includes all fields.");
936 ("lvs_full", (RStructList ("logvols", "lvm_lv"), []), 14, [],
937 [], (* XXX how to test? *)
938 "list the LVM logical volumes (LVs)",
940 List all the logical volumes detected. This is the equivalent
941 of the L<lvs(8)> command. The \"full\" version includes all fields.");
943 ("read_lines", (RStringList "lines", [String "path"]), 15, [],
944 [InitBasicFS, Always, TestOutputList (
945 [["write_file"; "/new"; "line1\r\nline2\nline3"; "0"];
946 ["read_lines"; "/new"]], ["line1"; "line2"; "line3"]);
947 InitBasicFS, Always, TestOutputList (
948 [["write_file"; "/new"; ""; "0"];
949 ["read_lines"; "/new"]], [])],
950 "read file as lines",
952 Return the contents of the file named C<path>.
954 The file contents are returned as a list of lines. Trailing
955 C<LF> and C<CRLF> character sequences are I<not> returned.
957 Note that this function cannot correctly handle binary files
958 (specifically, files containing C<\\0> character which is treated
959 as end of line). For those you need to use the C<guestfs_read_file>
960 function which has a more complex interface.");
962 ("aug_init", (RErr, [String "root"; Int "flags"]), 16, [],
963 [], (* XXX Augeas code needs tests. *)
964 "create a new Augeas handle",
966 Create a new Augeas handle for editing configuration files.
967 If there was any previous Augeas handle associated with this
968 guestfs session, then it is closed.
970 You must call this before using any other C<guestfs_aug_*>
973 C<root> is the filesystem root. C<root> must not be NULL,
976 The flags are the same as the flags defined in
977 E<lt>augeas.hE<gt>, the logical I<or> of the following
982 =item C<AUG_SAVE_BACKUP> = 1
984 Keep the original file with a C<.augsave> extension.
986 =item C<AUG_SAVE_NEWFILE> = 2
988 Save changes into a file with extension C<.augnew>, and
989 do not overwrite original. Overrides C<AUG_SAVE_BACKUP>.
991 =item C<AUG_TYPE_CHECK> = 4
993 Typecheck lenses (can be expensive).
995 =item C<AUG_NO_STDINC> = 8
997 Do not use standard load path for modules.
999 =item C<AUG_SAVE_NOOP> = 16
1001 Make save a no-op, just record what would have been changed.
1003 =item C<AUG_NO_LOAD> = 32
1005 Do not load the tree in C<guestfs_aug_init>.
1009 To close the handle, you can call C<guestfs_aug_close>.
1011 To find out more about Augeas, see L<http://augeas.net/>.");
1013 ("aug_close", (RErr, []), 26, [],
1014 [], (* XXX Augeas code needs tests. *)
1015 "close the current Augeas handle",
1017 Close the current Augeas handle and free up any resources
1018 used by it. After calling this, you have to call
1019 C<guestfs_aug_init> again before you can use any other
1020 Augeas functions.");
1022 ("aug_defvar", (RInt "nrnodes", [String "name"; OptString "expr"]), 17, [],
1023 [], (* XXX Augeas code needs tests. *)
1024 "define an Augeas variable",
1026 Defines an Augeas variable C<name> whose value is the result
1027 of evaluating C<expr>. If C<expr> is NULL, then C<name> is
1030 On success this returns the number of nodes in C<expr>, or
1031 C<0> if C<expr> evaluates to something which is not a nodeset.");
1033 ("aug_defnode", (RStruct ("nrnodescreated", "int_bool"), [String "name"; String "expr"; String "val"]), 18, [],
1034 [], (* XXX Augeas code needs tests. *)
1035 "define an Augeas node",
1037 Defines a variable C<name> whose value is the result of
1040 If C<expr> evaluates to an empty nodeset, a node is created,
1041 equivalent to calling C<guestfs_aug_set> C<expr>, C<value>.
1042 C<name> will be the nodeset containing that single node.
1044 On success this returns a pair containing the
1045 number of nodes in the nodeset, and a boolean flag
1046 if a node was created.");
1048 ("aug_get", (RString "val", [String "path"]), 19, [],
1049 [], (* XXX Augeas code needs tests. *)
1050 "look up the value of an Augeas path",
1052 Look up the value associated with C<path>. If C<path>
1053 matches exactly one node, the C<value> is returned.");
1055 ("aug_set", (RErr, [String "path"; String "val"]), 20, [],
1056 [], (* XXX Augeas code needs tests. *)
1057 "set Augeas path to value",
1059 Set the value associated with C<path> to C<value>.");
1061 ("aug_insert", (RErr, [String "path"; String "label"; Bool "before"]), 21, [],
1062 [], (* XXX Augeas code needs tests. *)
1063 "insert a sibling Augeas node",
1065 Create a new sibling C<label> for C<path>, inserting it into
1066 the tree before or after C<path> (depending on the boolean
1069 C<path> must match exactly one existing node in the tree, and
1070 C<label> must be a label, ie. not contain C</>, C<*> or end
1071 with a bracketed index C<[N]>.");
1073 ("aug_rm", (RInt "nrnodes", [String "path"]), 22, [],
1074 [], (* XXX Augeas code needs tests. *)
1075 "remove an Augeas path",
1077 Remove C<path> and all of its children.
1079 On success this returns the number of entries which were removed.");
1081 ("aug_mv", (RErr, [String "src"; String "dest"]), 23, [],
1082 [], (* XXX Augeas code needs tests. *)
1085 Move the node C<src> to C<dest>. C<src> must match exactly
1086 one node. C<dest> is overwritten if it exists.");
1088 ("aug_match", (RStringList "matches", [String "path"]), 24, [],
1089 [], (* XXX Augeas code needs tests. *)
1090 "return Augeas nodes which match path",
1092 Returns a list of paths which match the path expression C<path>.
1093 The returned paths are sufficiently qualified so that they match
1094 exactly one node in the current tree.");
1096 ("aug_save", (RErr, []), 25, [],
1097 [], (* XXX Augeas code needs tests. *)
1098 "write all pending Augeas changes to disk",
1100 This writes all pending changes to disk.
1102 The flags which were passed to C<guestfs_aug_init> affect exactly
1103 how files are saved.");
1105 ("aug_load", (RErr, []), 27, [],
1106 [], (* XXX Augeas code needs tests. *)
1107 "load files into the tree",
1109 Load files into the tree.
1111 See C<aug_load> in the Augeas documentation for the full gory
1114 ("aug_ls", (RStringList "matches", [String "path"]), 28, [],
1115 [], (* XXX Augeas code needs tests. *)
1116 "list Augeas nodes under a path",
1118 This is just a shortcut for listing C<guestfs_aug_match>
1119 C<path/*> and sorting the resulting nodes into alphabetical order.");
1121 ("rm", (RErr, [String "path"]), 29, [],
1122 [InitBasicFS, Always, TestRun
1125 InitBasicFS, Always, TestLastFail
1127 InitBasicFS, Always, TestLastFail
1132 Remove the single file C<path>.");
1134 ("rmdir", (RErr, [String "path"]), 30, [],
1135 [InitBasicFS, Always, TestRun
1138 InitBasicFS, Always, TestLastFail
1139 [["rmdir"; "/new"]];
1140 InitBasicFS, Always, TestLastFail
1142 ["rmdir"; "/new"]]],
1143 "remove a directory",
1145 Remove the single directory C<path>.");
1147 ("rm_rf", (RErr, [String "path"]), 31, [],
1148 [InitBasicFS, Always, TestOutputFalse
1150 ["mkdir"; "/new/foo"];
1151 ["touch"; "/new/foo/bar"];
1153 ["exists"; "/new"]]],
1154 "remove a file or directory recursively",
1156 Remove the file or directory C<path>, recursively removing the
1157 contents if its a directory. This is like the C<rm -rf> shell
1160 ("mkdir", (RErr, [String "path"]), 32, [],
1161 [InitBasicFS, Always, TestOutputTrue
1163 ["is_dir"; "/new"]];
1164 InitBasicFS, Always, TestLastFail
1165 [["mkdir"; "/new/foo/bar"]]],
1166 "create a directory",
1168 Create a directory named C<path>.");
1170 ("mkdir_p", (RErr, [String "path"]), 33, [],
1171 [InitBasicFS, Always, TestOutputTrue
1172 [["mkdir_p"; "/new/foo/bar"];
1173 ["is_dir"; "/new/foo/bar"]];
1174 InitBasicFS, Always, TestOutputTrue
1175 [["mkdir_p"; "/new/foo/bar"];
1176 ["is_dir"; "/new/foo"]];
1177 InitBasicFS, Always, TestOutputTrue
1178 [["mkdir_p"; "/new/foo/bar"];
1179 ["is_dir"; "/new"]];
1180 (* Regression tests for RHBZ#503133: *)
1181 InitBasicFS, Always, TestRun
1183 ["mkdir_p"; "/new"]];
1184 InitBasicFS, Always, TestLastFail
1186 ["mkdir_p"; "/new"]]],
1187 "create a directory and parents",
1189 Create a directory named C<path>, creating any parent directories
1190 as necessary. This is like the C<mkdir -p> shell command.");
1192 ("chmod", (RErr, [Int "mode"; String "path"]), 34, [],
1193 [], (* XXX Need stat command to test *)
1196 Change the mode (permissions) of C<path> to C<mode>. Only
1197 numeric modes are supported.");
1199 ("chown", (RErr, [Int "owner"; Int "group"; String "path"]), 35, [],
1200 [], (* XXX Need stat command to test *)
1201 "change file owner and group",
1203 Change the file owner to C<owner> and group to C<group>.
1205 Only numeric uid and gid are supported. If you want to use
1206 names, you will need to locate and parse the password file
1207 yourself (Augeas support makes this relatively easy).");
1209 ("exists", (RBool "existsflag", [String "path"]), 36, [],
1210 [InitBasicFS, Always, TestOutputTrue (
1212 ["exists"; "/new"]]);
1213 InitBasicFS, Always, TestOutputTrue (
1215 ["exists"; "/new"]])],
1216 "test if file or directory exists",
1218 This returns C<true> if and only if there is a file, directory
1219 (or anything) with the given C<path> name.
1221 See also C<guestfs_is_file>, C<guestfs_is_dir>, C<guestfs_stat>.");
1223 ("is_file", (RBool "fileflag", [String "path"]), 37, [],
1224 [InitBasicFS, Always, TestOutputTrue (
1226 ["is_file"; "/new"]]);
1227 InitBasicFS, Always, TestOutputFalse (
1229 ["is_file"; "/new"]])],
1230 "test if file exists",
1232 This returns C<true> if and only if there is a file
1233 with the given C<path> name. Note that it returns false for
1234 other objects like directories.
1236 See also C<guestfs_stat>.");
1238 ("is_dir", (RBool "dirflag", [String "path"]), 38, [],
1239 [InitBasicFS, Always, TestOutputFalse (
1241 ["is_dir"; "/new"]]);
1242 InitBasicFS, Always, TestOutputTrue (
1244 ["is_dir"; "/new"]])],
1245 "test if file exists",
1247 This returns C<true> if and only if there is a directory
1248 with the given C<path> name. Note that it returns false for
1249 other objects like files.
1251 See also C<guestfs_stat>.");
1253 ("pvcreate", (RErr, [String "device"]), 39, [],
1254 [InitEmpty, Always, TestOutputListOfDevices (
1255 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1256 ["pvcreate"; "/dev/sda1"];
1257 ["pvcreate"; "/dev/sda2"];
1258 ["pvcreate"; "/dev/sda3"];
1259 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1260 "create an LVM physical volume",
1262 This creates an LVM physical volume on the named C<device>,
1263 where C<device> should usually be a partition name such
1266 ("vgcreate", (RErr, [String "volgroup"; StringList "physvols"]), 40, [],
1267 [InitEmpty, Always, TestOutputList (
1268 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1269 ["pvcreate"; "/dev/sda1"];
1270 ["pvcreate"; "/dev/sda2"];
1271 ["pvcreate"; "/dev/sda3"];
1272 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1273 ["vgcreate"; "VG2"; "/dev/sda3"];
1274 ["vgs"]], ["VG1"; "VG2"])],
1275 "create an LVM volume group",
1277 This creates an LVM volume group called C<volgroup>
1278 from the non-empty list of physical volumes C<physvols>.");
1280 ("lvcreate", (RErr, [String "logvol"; String "volgroup"; Int "mbytes"]), 41, [],
1281 [InitEmpty, Always, TestOutputList (
1282 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1283 ["pvcreate"; "/dev/sda1"];
1284 ["pvcreate"; "/dev/sda2"];
1285 ["pvcreate"; "/dev/sda3"];
1286 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1287 ["vgcreate"; "VG2"; "/dev/sda3"];
1288 ["lvcreate"; "LV1"; "VG1"; "50"];
1289 ["lvcreate"; "LV2"; "VG1"; "50"];
1290 ["lvcreate"; "LV3"; "VG2"; "50"];
1291 ["lvcreate"; "LV4"; "VG2"; "50"];
1292 ["lvcreate"; "LV5"; "VG2"; "50"];
1294 ["/dev/VG1/LV1"; "/dev/VG1/LV2";
1295 "/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
1296 "create an LVM volume group",
1298 This creates an LVM volume group called C<logvol>
1299 on the volume group C<volgroup>, with C<size> megabytes.");
1301 ("mkfs", (RErr, [String "fstype"; String "device"]), 42, [],
1302 [InitEmpty, Always, TestOutput (
1303 [["sfdiskM"; "/dev/sda"; ","];
1304 ["mkfs"; "ext2"; "/dev/sda1"];
1305 ["mount"; "/dev/sda1"; "/"];
1306 ["write_file"; "/new"; "new file contents"; "0"];
1307 ["cat"; "/new"]], "new file contents")],
1308 "make a filesystem",
1310 This creates a filesystem on C<device> (usually a partition
1311 or LVM logical volume). The filesystem type is C<fstype>, for
1314 ("sfdisk", (RErr, [String "device";
1315 Int "cyls"; Int "heads"; Int "sectors";
1316 StringList "lines"]), 43, [DangerWillRobinson],
1318 "create partitions on a block device",
1320 This is a direct interface to the L<sfdisk(8)> program for creating
1321 partitions on block devices.
1323 C<device> should be a block device, for example C</dev/sda>.
1325 C<cyls>, C<heads> and C<sectors> are the number of cylinders, heads
1326 and sectors on the device, which are passed directly to sfdisk as
1327 the I<-C>, I<-H> and I<-S> parameters. If you pass C<0> for any
1328 of these, then the corresponding parameter is omitted. Usually for
1329 'large' disks, you can just pass C<0> for these, but for small
1330 (floppy-sized) disks, sfdisk (or rather, the kernel) cannot work
1331 out the right geometry and you will need to tell it.
1333 C<lines> is a list of lines that we feed to C<sfdisk>. For more
1334 information refer to the L<sfdisk(8)> manpage.
1336 To create a single partition occupying the whole disk, you would
1337 pass C<lines> as a single element list, when the single element being
1338 the string C<,> (comma).
1340 See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>");
1342 ("write_file", (RErr, [String "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning],
1343 [InitBasicFS, Always, TestOutput (
1344 [["write_file"; "/new"; "new file contents"; "0"];
1345 ["cat"; "/new"]], "new file contents");
1346 InitBasicFS, Always, TestOutput (
1347 [["write_file"; "/new"; "\nnew file contents\n"; "0"];
1348 ["cat"; "/new"]], "\nnew file contents\n");
1349 InitBasicFS, Always, TestOutput (
1350 [["write_file"; "/new"; "\n\n"; "0"];
1351 ["cat"; "/new"]], "\n\n");
1352 InitBasicFS, Always, TestOutput (
1353 [["write_file"; "/new"; ""; "0"];
1354 ["cat"; "/new"]], "");
1355 InitBasicFS, Always, TestOutput (
1356 [["write_file"; "/new"; "\n\n\n"; "0"];
1357 ["cat"; "/new"]], "\n\n\n");
1358 InitBasicFS, Always, TestOutput (
1359 [["write_file"; "/new"; "\n"; "0"];
1360 ["cat"; "/new"]], "\n")],
1363 This call creates a file called C<path>. The contents of the
1364 file is the string C<content> (which can contain any 8 bit data),
1365 with length C<size>.
1367 As a special case, if C<size> is C<0>
1368 then the length is calculated using C<strlen> (so in this case
1369 the content cannot contain embedded ASCII NULs).
1371 I<NB.> Owing to a bug, writing content containing ASCII NUL
1372 characters does I<not> work, even if the length is specified.
1373 We hope to resolve this bug in a future version. In the meantime
1374 use C<guestfs_upload>.");
1376 ("umount", (RErr, [String "pathordevice"]), 45, [FishAlias "unmount"],
1377 [InitEmpty, Always, TestOutputListOfDevices (
1378 [["sfdiskM"; "/dev/sda"; ","];
1379 ["mkfs"; "ext2"; "/dev/sda1"];
1380 ["mount"; "/dev/sda1"; "/"];
1381 ["mounts"]], ["/dev/sda1"]);
1382 InitEmpty, Always, TestOutputList (
1383 [["sfdiskM"; "/dev/sda"; ","];
1384 ["mkfs"; "ext2"; "/dev/sda1"];
1385 ["mount"; "/dev/sda1"; "/"];
1388 "unmount a filesystem",
1390 This unmounts the given filesystem. The filesystem may be
1391 specified either by its mountpoint (path) or the device which
1392 contains the filesystem.");
1394 ("mounts", (RStringList "devices", []), 46, [],
1395 [InitBasicFS, Always, TestOutputListOfDevices (
1396 [["mounts"]], ["/dev/sda1"])],
1397 "show mounted filesystems",
1399 This returns the list of currently mounted filesystems. It returns
1400 the list of devices (eg. C</dev/sda1>, C</dev/VG/LV>).
1402 Some internal mounts are not shown.
1404 See also: C<guestfs_mountpoints>");
1406 ("umount_all", (RErr, []), 47, [FishAlias "unmount-all"],
1407 [InitBasicFS, Always, TestOutputList (
1410 (* check that umount_all can unmount nested mounts correctly: *)
1411 InitEmpty, Always, TestOutputList (
1412 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1413 ["mkfs"; "ext2"; "/dev/sda1"];
1414 ["mkfs"; "ext2"; "/dev/sda2"];
1415 ["mkfs"; "ext2"; "/dev/sda3"];
1416 ["mount"; "/dev/sda1"; "/"];
1418 ["mount"; "/dev/sda2"; "/mp1"];
1419 ["mkdir"; "/mp1/mp2"];
1420 ["mount"; "/dev/sda3"; "/mp1/mp2"];
1421 ["mkdir"; "/mp1/mp2/mp3"];
1424 "unmount all filesystems",
1426 This unmounts all mounted filesystems.
1428 Some internal mounts are not unmounted by this call.");
1430 ("lvm_remove_all", (RErr, []), 48, [DangerWillRobinson],
1432 "remove all LVM LVs, VGs and PVs",
1434 This command removes all LVM logical volumes, volume groups
1435 and physical volumes.");
1437 ("file", (RString "description", [String "path"]), 49, [],
1438 [InitBasicFS, Always, TestOutput (
1440 ["file"; "/new"]], "empty");
1441 InitBasicFS, Always, TestOutput (
1442 [["write_file"; "/new"; "some content\n"; "0"];
1443 ["file"; "/new"]], "ASCII text");
1444 InitBasicFS, Always, TestLastFail (
1445 [["file"; "/nofile"]])],
1446 "determine file type",
1448 This call uses the standard L<file(1)> command to determine
1449 the type or contents of the file. This also works on devices,
1450 for example to find out whether a partition contains a filesystem.
1452 The exact command which runs is C<file -bsL path>. Note in
1453 particular that the filename is not prepended to the output
1454 (the C<-b> option).");
1456 ("command", (RString "output", [StringList "arguments"]), 50, [ProtocolLimitWarning],
1457 [InitBasicFS, Always, TestOutput (
1458 [["upload"; "test-command"; "/test-command"];
1459 ["chmod"; "0o755"; "/test-command"];
1460 ["command"; "/test-command 1"]], "Result1");
1461 InitBasicFS, Always, TestOutput (
1462 [["upload"; "test-command"; "/test-command"];
1463 ["chmod"; "0o755"; "/test-command"];
1464 ["command"; "/test-command 2"]], "Result2\n");
1465 InitBasicFS, Always, TestOutput (
1466 [["upload"; "test-command"; "/test-command"];
1467 ["chmod"; "0o755"; "/test-command"];
1468 ["command"; "/test-command 3"]], "\nResult3");
1469 InitBasicFS, Always, TestOutput (
1470 [["upload"; "test-command"; "/test-command"];
1471 ["chmod"; "0o755"; "/test-command"];
1472 ["command"; "/test-command 4"]], "\nResult4\n");
1473 InitBasicFS, Always, TestOutput (
1474 [["upload"; "test-command"; "/test-command"];
1475 ["chmod"; "0o755"; "/test-command"];
1476 ["command"; "/test-command 5"]], "\nResult5\n\n");
1477 InitBasicFS, Always, TestOutput (
1478 [["upload"; "test-command"; "/test-command"];
1479 ["chmod"; "0o755"; "/test-command"];
1480 ["command"; "/test-command 6"]], "\n\nResult6\n\n");
1481 InitBasicFS, Always, TestOutput (
1482 [["upload"; "test-command"; "/test-command"];
1483 ["chmod"; "0o755"; "/test-command"];
1484 ["command"; "/test-command 7"]], "");
1485 InitBasicFS, Always, TestOutput (
1486 [["upload"; "test-command"; "/test-command"];
1487 ["chmod"; "0o755"; "/test-command"];
1488 ["command"; "/test-command 8"]], "\n");
1489 InitBasicFS, Always, TestOutput (
1490 [["upload"; "test-command"; "/test-command"];
1491 ["chmod"; "0o755"; "/test-command"];
1492 ["command"; "/test-command 9"]], "\n\n");
1493 InitBasicFS, Always, TestOutput (
1494 [["upload"; "test-command"; "/test-command"];
1495 ["chmod"; "0o755"; "/test-command"];
1496 ["command"; "/test-command 10"]], "Result10-1\nResult10-2\n");
1497 InitBasicFS, Always, TestOutput (
1498 [["upload"; "test-command"; "/test-command"];
1499 ["chmod"; "0o755"; "/test-command"];
1500 ["command"; "/test-command 11"]], "Result11-1\nResult11-2");
1501 InitBasicFS, Always, TestLastFail (
1502 [["upload"; "test-command"; "/test-command"];
1503 ["chmod"; "0o755"; "/test-command"];
1504 ["command"; "/test-command"]])],
1505 "run a command from the guest filesystem",
1507 This call runs a command from the guest filesystem. The
1508 filesystem must be mounted, and must contain a compatible
1509 operating system (ie. something Linux, with the same
1510 or compatible processor architecture).
1512 The single parameter is an argv-style list of arguments.
1513 The first element is the name of the program to run.
1514 Subsequent elements are parameters. The list must be
1515 non-empty (ie. must contain a program name). Note that
1516 the command runs directly, and is I<not> invoked via
1517 the shell (see C<guestfs_sh>).
1519 The return value is anything printed to I<stdout> by
1522 If the command returns a non-zero exit status, then
1523 this function returns an error message. The error message
1524 string is the content of I<stderr> from the command.
1526 The C<$PATH> environment variable will contain at least
1527 C</usr/bin> and C</bin>. If you require a program from
1528 another location, you should provide the full path in the
1531 Shared libraries and data files required by the program
1532 must be available on filesystems which are mounted in the
1533 correct places. It is the caller's responsibility to ensure
1534 all filesystems that are needed are mounted at the right
1537 ("command_lines", (RStringList "lines", [StringList "arguments"]), 51, [ProtocolLimitWarning],
1538 [InitBasicFS, Always, TestOutputList (
1539 [["upload"; "test-command"; "/test-command"];
1540 ["chmod"; "0o755"; "/test-command"];
1541 ["command_lines"; "/test-command 1"]], ["Result1"]);
1542 InitBasicFS, Always, TestOutputList (
1543 [["upload"; "test-command"; "/test-command"];
1544 ["chmod"; "0o755"; "/test-command"];
1545 ["command_lines"; "/test-command 2"]], ["Result2"]);
1546 InitBasicFS, Always, TestOutputList (
1547 [["upload"; "test-command"; "/test-command"];
1548 ["chmod"; "0o755"; "/test-command"];
1549 ["command_lines"; "/test-command 3"]], ["";"Result3"]);
1550 InitBasicFS, Always, TestOutputList (
1551 [["upload"; "test-command"; "/test-command"];
1552 ["chmod"; "0o755"; "/test-command"];
1553 ["command_lines"; "/test-command 4"]], ["";"Result4"]);
1554 InitBasicFS, Always, TestOutputList (
1555 [["upload"; "test-command"; "/test-command"];
1556 ["chmod"; "0o755"; "/test-command"];
1557 ["command_lines"; "/test-command 5"]], ["";"Result5";""]);
1558 InitBasicFS, Always, TestOutputList (
1559 [["upload"; "test-command"; "/test-command"];
1560 ["chmod"; "0o755"; "/test-command"];
1561 ["command_lines"; "/test-command 6"]], ["";"";"Result6";""]);
1562 InitBasicFS, Always, TestOutputList (
1563 [["upload"; "test-command"; "/test-command"];
1564 ["chmod"; "0o755"; "/test-command"];
1565 ["command_lines"; "/test-command 7"]], []);
1566 InitBasicFS, Always, TestOutputList (
1567 [["upload"; "test-command"; "/test-command"];
1568 ["chmod"; "0o755"; "/test-command"];
1569 ["command_lines"; "/test-command 8"]], [""]);
1570 InitBasicFS, Always, TestOutputList (
1571 [["upload"; "test-command"; "/test-command"];
1572 ["chmod"; "0o755"; "/test-command"];
1573 ["command_lines"; "/test-command 9"]], ["";""]);
1574 InitBasicFS, Always, TestOutputList (
1575 [["upload"; "test-command"; "/test-command"];
1576 ["chmod"; "0o755"; "/test-command"];
1577 ["command_lines"; "/test-command 10"]], ["Result10-1";"Result10-2"]);
1578 InitBasicFS, Always, TestOutputList (
1579 [["upload"; "test-command"; "/test-command"];
1580 ["chmod"; "0o755"; "/test-command"];
1581 ["command_lines"; "/test-command 11"]], ["Result11-1";"Result11-2"])],
1582 "run a command, returning lines",
1584 This is the same as C<guestfs_command>, but splits the
1585 result into a list of lines.
1587 See also: C<guestfs_sh_lines>");
1589 ("stat", (RStruct ("statbuf", "stat"), [String "path"]), 52, [],
1590 [InitBasicFS, Always, TestOutputStruct (
1592 ["stat"; "/new"]], [CompareWithInt ("size", 0)])],
1593 "get file information",
1595 Returns file information for the given C<path>.
1597 This is the same as the C<stat(2)> system call.");
1599 ("lstat", (RStruct ("statbuf", "stat"), [String "path"]), 53, [],
1600 [InitBasicFS, Always, TestOutputStruct (
1602 ["lstat"; "/new"]], [CompareWithInt ("size", 0)])],
1603 "get file information for a symbolic link",
1605 Returns file information for the given C<path>.
1607 This is the same as C<guestfs_stat> except that if C<path>
1608 is a symbolic link, then the link is stat-ed, not the file it
1611 This is the same as the C<lstat(2)> system call.");
1613 ("statvfs", (RStruct ("statbuf", "statvfs"), [String "path"]), 54, [],
1614 [InitBasicFS, Always, TestOutputStruct (
1615 [["statvfs"; "/"]], [CompareWithInt ("namemax", 255);
1616 CompareWithInt ("bsize", 1024)])],
1617 "get file system statistics",
1619 Returns file system statistics for any mounted file system.
1620 C<path> should be a file or directory in the mounted file system
1621 (typically it is the mount point itself, but it doesn't need to be).
1623 This is the same as the C<statvfs(2)> system call.");
1625 ("tune2fs_l", (RHashtable "superblock", [String "device"]), 55, [],
1627 "get ext2/ext3/ext4 superblock details",
1629 This returns the contents of the ext2, ext3 or ext4 filesystem
1630 superblock on C<device>.
1632 It is the same as running C<tune2fs -l device>. See L<tune2fs(8)>
1633 manpage for more details. The list of fields returned isn't
1634 clearly defined, and depends on both the version of C<tune2fs>
1635 that libguestfs was built against, and the filesystem itself.");
1637 ("blockdev_setro", (RErr, [String "device"]), 56, [],
1638 [InitEmpty, Always, TestOutputTrue (
1639 [["blockdev_setro"; "/dev/sda"];
1640 ["blockdev_getro"; "/dev/sda"]])],
1641 "set block device to read-only",
1643 Sets the block device named C<device> to read-only.
1645 This uses the L<blockdev(8)> command.");
1647 ("blockdev_setrw", (RErr, [String "device"]), 57, [],
1648 [InitEmpty, Always, TestOutputFalse (
1649 [["blockdev_setrw"; "/dev/sda"];
1650 ["blockdev_getro"; "/dev/sda"]])],
1651 "set block device to read-write",
1653 Sets the block device named C<device> to read-write.
1655 This uses the L<blockdev(8)> command.");
1657 ("blockdev_getro", (RBool "ro", [String "device"]), 58, [],
1658 [InitEmpty, Always, TestOutputTrue (
1659 [["blockdev_setro"; "/dev/sda"];
1660 ["blockdev_getro"; "/dev/sda"]])],
1661 "is block device set to read-only",
1663 Returns a boolean indicating if the block device is read-only
1664 (true if read-only, false if not).
1666 This uses the L<blockdev(8)> command.");
1668 ("blockdev_getss", (RInt "sectorsize", [String "device"]), 59, [],
1669 [InitEmpty, Always, TestOutputInt (
1670 [["blockdev_getss"; "/dev/sda"]], 512)],
1671 "get sectorsize of block device",
1673 This returns the size of sectors on a block device.
1674 Usually 512, but can be larger for modern devices.
1676 (Note, this is not the size in sectors, use C<guestfs_blockdev_getsz>
1679 This uses the L<blockdev(8)> command.");
1681 ("blockdev_getbsz", (RInt "blocksize", [String "device"]), 60, [],
1682 [InitEmpty, Always, TestOutputInt (
1683 [["blockdev_getbsz"; "/dev/sda"]], 4096)],
1684 "get blocksize of block device",
1686 This returns the block size of a device.
1688 (Note this is different from both I<size in blocks> and
1689 I<filesystem block size>).
1691 This uses the L<blockdev(8)> command.");
1693 ("blockdev_setbsz", (RErr, [String "device"; Int "blocksize"]), 61, [],
1695 "set blocksize of block device",
1697 This sets the block size of a device.
1699 (Note this is different from both I<size in blocks> and
1700 I<filesystem block size>).
1702 This uses the L<blockdev(8)> command.");
1704 ("blockdev_getsz", (RInt64 "sizeinsectors", [String "device"]), 62, [],
1705 [InitEmpty, Always, TestOutputInt (
1706 [["blockdev_getsz"; "/dev/sda"]], 1024000)],
1707 "get total size of device in 512-byte sectors",
1709 This returns the size of the device in units of 512-byte sectors
1710 (even if the sectorsize isn't 512 bytes ... weird).
1712 See also C<guestfs_blockdev_getss> for the real sector size of
1713 the device, and C<guestfs_blockdev_getsize64> for the more
1714 useful I<size in bytes>.
1716 This uses the L<blockdev(8)> command.");
1718 ("blockdev_getsize64", (RInt64 "sizeinbytes", [String "device"]), 63, [],
1719 [InitEmpty, Always, TestOutputInt (
1720 [["blockdev_getsize64"; "/dev/sda"]], 524288000)],
1721 "get total size of device in bytes",
1723 This returns the size of the device in bytes.
1725 See also C<guestfs_blockdev_getsz>.
1727 This uses the L<blockdev(8)> command.");
1729 ("blockdev_flushbufs", (RErr, [String "device"]), 64, [],
1730 [InitEmpty, Always, TestRun
1731 [["blockdev_flushbufs"; "/dev/sda"]]],
1732 "flush device buffers",
1734 This tells the kernel to flush internal buffers associated
1737 This uses the L<blockdev(8)> command.");
1739 ("blockdev_rereadpt", (RErr, [String "device"]), 65, [],
1740 [InitEmpty, Always, TestRun
1741 [["blockdev_rereadpt"; "/dev/sda"]]],
1742 "reread partition table",
1744 Reread the partition table on C<device>.
1746 This uses the L<blockdev(8)> command.");
1748 ("upload", (RErr, [FileIn "filename"; String "remotefilename"]), 66, [],
1749 [InitBasicFS, Always, TestOutput (
1750 (* Pick a file from cwd which isn't likely to change. *)
1751 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1752 ["checksum"; "md5"; "/COPYING.LIB"]], "e3eda01d9815f8d24aae2dbd89b68b06")],
1753 "upload a file from the local machine",
1755 Upload local file C<filename> to C<remotefilename> on the
1758 C<filename> can also be a named pipe.
1760 See also C<guestfs_download>.");
1762 ("download", (RErr, [String "remotefilename"; FileOut "filename"]), 67, [],
1763 [InitBasicFS, Always, TestOutput (
1764 (* Pick a file from cwd which isn't likely to change. *)
1765 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1766 ["download"; "/COPYING.LIB"; "testdownload.tmp"];
1767 ["upload"; "testdownload.tmp"; "/upload"];
1768 ["checksum"; "md5"; "/upload"]], "e3eda01d9815f8d24aae2dbd89b68b06")],
1769 "download a file to the local machine",
1771 Download file C<remotefilename> and save it as C<filename>
1772 on the local machine.
1774 C<filename> can also be a named pipe.
1776 See also C<guestfs_upload>, C<guestfs_cat>.");
1778 ("checksum", (RString "checksum", [String "csumtype"; String "path"]), 68, [],
1779 [InitBasicFS, Always, TestOutput (
1780 [["write_file"; "/new"; "test\n"; "0"];
1781 ["checksum"; "crc"; "/new"]], "935282863");
1782 InitBasicFS, Always, TestLastFail (
1783 [["checksum"; "crc"; "/new"]]);
1784 InitBasicFS, Always, TestOutput (
1785 [["write_file"; "/new"; "test\n"; "0"];
1786 ["checksum"; "md5"; "/new"]], "d8e8fca2dc0f896fd7cb4cb0031ba249");
1787 InitBasicFS, Always, TestOutput (
1788 [["write_file"; "/new"; "test\n"; "0"];
1789 ["checksum"; "sha1"; "/new"]], "4e1243bd22c66e76c2ba9eddc1f91394e57f9f83");
1790 InitBasicFS, Always, TestOutput (
1791 [["write_file"; "/new"; "test\n"; "0"];
1792 ["checksum"; "sha224"; "/new"]], "52f1bf093f4b7588726035c176c0cdb4376cfea53819f1395ac9e6ec");
1793 InitBasicFS, Always, TestOutput (
1794 [["write_file"; "/new"; "test\n"; "0"];
1795 ["checksum"; "sha256"; "/new"]], "f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2");
1796 InitBasicFS, Always, TestOutput (
1797 [["write_file"; "/new"; "test\n"; "0"];
1798 ["checksum"; "sha384"; "/new"]], "109bb6b5b6d5547c1ce03c7a8bd7d8f80c1cb0957f50c4f7fda04692079917e4f9cad52b878f3d8234e1a170b154b72d");
1799 InitBasicFS, Always, TestOutput (
1800 [["write_file"; "/new"; "test\n"; "0"];
1801 ["checksum"; "sha512"; "/new"]], "0e3e75234abc68f4378a86b3f4b32a198ba301845b0cd6e50106e874345700cc6663a86c1ea125dc5e92be17c98f9a0f85ca9d5f595db2012f7cc3571945c123");
1802 InitBasicFS, Always, TestOutput (
1803 (* RHEL 5 thinks this is an HFS+ filesystem unless we give
1804 * the type explicitly.
1806 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
1807 ["checksum"; "md5"; "/known-3"]], "46d6ca27ee07cdc6fa99c2e138cc522c")],
1808 "compute MD5, SHAx or CRC checksum of file",
1810 This call computes the MD5, SHAx or CRC checksum of the
1813 The type of checksum to compute is given by the C<csumtype>
1814 parameter which must have one of the following values:
1820 Compute the cyclic redundancy check (CRC) specified by POSIX
1821 for the C<cksum> command.
1825 Compute the MD5 hash (using the C<md5sum> program).
1829 Compute the SHA1 hash (using the C<sha1sum> program).
1833 Compute the SHA224 hash (using the C<sha224sum> program).
1837 Compute the SHA256 hash (using the C<sha256sum> program).
1841 Compute the SHA384 hash (using the C<sha384sum> program).
1845 Compute the SHA512 hash (using the C<sha512sum> program).
1849 The checksum is returned as a printable string.");
1851 ("tar_in", (RErr, [FileIn "tarfile"; String "directory"]), 69, [],
1852 [InitBasicFS, Always, TestOutput (
1853 [["tar_in"; "../images/helloworld.tar"; "/"];
1854 ["cat"; "/hello"]], "hello\n")],
1855 "unpack tarfile to directory",
1857 This command uploads and unpacks local file C<tarfile> (an
1858 I<uncompressed> tar file) into C<directory>.
1860 To upload a compressed tarball, use C<guestfs_tgz_in>.");
1862 ("tar_out", (RErr, [String "directory"; FileOut "tarfile"]), 70, [],
1864 "pack directory into tarfile",
1866 This command packs the contents of C<directory> and downloads
1867 it to local file C<tarfile>.
1869 To download a compressed tarball, use C<guestfs_tgz_out>.");
1871 ("tgz_in", (RErr, [FileIn "tarball"; String "directory"]), 71, [],
1872 [InitBasicFS, Always, TestOutput (
1873 [["tgz_in"; "../images/helloworld.tar.gz"; "/"];
1874 ["cat"; "/hello"]], "hello\n")],
1875 "unpack compressed tarball to directory",
1877 This command uploads and unpacks local file C<tarball> (a
1878 I<gzip compressed> tar file) into C<directory>.
1880 To upload an uncompressed tarball, use C<guestfs_tar_in>.");
1882 ("tgz_out", (RErr, [String "directory"; FileOut "tarball"]), 72, [],
1884 "pack directory into compressed tarball",
1886 This command packs the contents of C<directory> and downloads
1887 it to local file C<tarball>.
1889 To download an uncompressed tarball, use C<guestfs_tar_out>.");
1891 ("mount_ro", (RErr, [String "device"; String "mountpoint"]), 73, [],
1892 [InitBasicFS, Always, TestLastFail (
1894 ["mount_ro"; "/dev/sda1"; "/"];
1895 ["touch"; "/new"]]);
1896 InitBasicFS, Always, TestOutput (
1897 [["write_file"; "/new"; "data"; "0"];
1899 ["mount_ro"; "/dev/sda1"; "/"];
1900 ["cat"; "/new"]], "data")],
1901 "mount a guest disk, read-only",
1903 This is the same as the C<guestfs_mount> command, but it
1904 mounts the filesystem with the read-only (I<-o ro>) flag.");
1906 ("mount_options", (RErr, [String "options"; String "device"; String "mountpoint"]), 74, [],
1908 "mount a guest disk with mount options",
1910 This is the same as the C<guestfs_mount> command, but it
1911 allows you to set the mount options as for the
1912 L<mount(8)> I<-o> flag.");
1914 ("mount_vfs", (RErr, [String "options"; String "vfstype"; String "device"; String "mountpoint"]), 75, [],
1916 "mount a guest disk with mount options and vfstype",
1918 This is the same as the C<guestfs_mount> command, but it
1919 allows you to set both the mount options and the vfstype
1920 as for the L<mount(8)> I<-o> and I<-t> flags.");
1922 ("debug", (RString "result", [String "subcmd"; StringList "extraargs"]), 76, [],
1924 "debugging and internals",
1926 The C<guestfs_debug> command exposes some internals of
1927 C<guestfsd> (the guestfs daemon) that runs inside the
1930 There is no comprehensive help for this command. You have
1931 to look at the file C<daemon/debug.c> in the libguestfs source
1932 to find out what you can do.");
1934 ("lvremove", (RErr, [String "device"]), 77, [],
1935 [InitEmpty, Always, TestOutputList (
1936 [["sfdiskM"; "/dev/sda"; ","];
1937 ["pvcreate"; "/dev/sda1"];
1938 ["vgcreate"; "VG"; "/dev/sda1"];
1939 ["lvcreate"; "LV1"; "VG"; "50"];
1940 ["lvcreate"; "LV2"; "VG"; "50"];
1941 ["lvremove"; "/dev/VG/LV1"];
1942 ["lvs"]], ["/dev/VG/LV2"]);
1943 InitEmpty, Always, TestOutputList (
1944 [["sfdiskM"; "/dev/sda"; ","];
1945 ["pvcreate"; "/dev/sda1"];
1946 ["vgcreate"; "VG"; "/dev/sda1"];
1947 ["lvcreate"; "LV1"; "VG"; "50"];
1948 ["lvcreate"; "LV2"; "VG"; "50"];
1949 ["lvremove"; "/dev/VG"];
1951 InitEmpty, Always, TestOutputList (
1952 [["sfdiskM"; "/dev/sda"; ","];
1953 ["pvcreate"; "/dev/sda1"];
1954 ["vgcreate"; "VG"; "/dev/sda1"];
1955 ["lvcreate"; "LV1"; "VG"; "50"];
1956 ["lvcreate"; "LV2"; "VG"; "50"];
1957 ["lvremove"; "/dev/VG"];
1959 "remove an LVM logical volume",
1961 Remove an LVM logical volume C<device>, where C<device> is
1962 the path to the LV, such as C</dev/VG/LV>.
1964 You can also remove all LVs in a volume group by specifying
1965 the VG name, C</dev/VG>.");
1967 ("vgremove", (RErr, [String "vgname"]), 78, [],
1968 [InitEmpty, Always, TestOutputList (
1969 [["sfdiskM"; "/dev/sda"; ","];
1970 ["pvcreate"; "/dev/sda1"];
1971 ["vgcreate"; "VG"; "/dev/sda1"];
1972 ["lvcreate"; "LV1"; "VG"; "50"];
1973 ["lvcreate"; "LV2"; "VG"; "50"];
1976 InitEmpty, Always, TestOutputList (
1977 [["sfdiskM"; "/dev/sda"; ","];
1978 ["pvcreate"; "/dev/sda1"];
1979 ["vgcreate"; "VG"; "/dev/sda1"];
1980 ["lvcreate"; "LV1"; "VG"; "50"];
1981 ["lvcreate"; "LV2"; "VG"; "50"];
1984 "remove an LVM volume group",
1986 Remove an LVM volume group C<vgname>, (for example C<VG>).
1988 This also forcibly removes all logical volumes in the volume
1991 ("pvremove", (RErr, [String "device"]), 79, [],
1992 [InitEmpty, Always, TestOutputListOfDevices (
1993 [["sfdiskM"; "/dev/sda"; ","];
1994 ["pvcreate"; "/dev/sda1"];
1995 ["vgcreate"; "VG"; "/dev/sda1"];
1996 ["lvcreate"; "LV1"; "VG"; "50"];
1997 ["lvcreate"; "LV2"; "VG"; "50"];
1999 ["pvremove"; "/dev/sda1"];
2001 InitEmpty, Always, TestOutputListOfDevices (
2002 [["sfdiskM"; "/dev/sda"; ","];
2003 ["pvcreate"; "/dev/sda1"];
2004 ["vgcreate"; "VG"; "/dev/sda1"];
2005 ["lvcreate"; "LV1"; "VG"; "50"];
2006 ["lvcreate"; "LV2"; "VG"; "50"];
2008 ["pvremove"; "/dev/sda1"];
2010 InitEmpty, Always, TestOutputListOfDevices (
2011 [["sfdiskM"; "/dev/sda"; ","];
2012 ["pvcreate"; "/dev/sda1"];
2013 ["vgcreate"; "VG"; "/dev/sda1"];
2014 ["lvcreate"; "LV1"; "VG"; "50"];
2015 ["lvcreate"; "LV2"; "VG"; "50"];
2017 ["pvremove"; "/dev/sda1"];
2019 "remove an LVM physical volume",
2021 This wipes a physical volume C<device> so that LVM will no longer
2024 The implementation uses the C<pvremove> command which refuses to
2025 wipe physical volumes that contain any volume groups, so you have
2026 to remove those first.");
2028 ("set_e2label", (RErr, [String "device"; String "label"]), 80, [],
2029 [InitBasicFS, Always, TestOutput (
2030 [["set_e2label"; "/dev/sda1"; "testlabel"];
2031 ["get_e2label"; "/dev/sda1"]], "testlabel")],
2032 "set the ext2/3/4 filesystem label",
2034 This sets the ext2/3/4 filesystem label of the filesystem on
2035 C<device> to C<label>. Filesystem labels are limited to
2038 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
2039 to return the existing label on a filesystem.");
2041 ("get_e2label", (RString "label", [String "device"]), 81, [],
2043 "get the ext2/3/4 filesystem label",
2045 This returns the ext2/3/4 filesystem label of the filesystem on
2048 ("set_e2uuid", (RErr, [String "device"; String "uuid"]), 82, [],
2049 [InitBasicFS, Always, TestOutput (
2050 [["set_e2uuid"; "/dev/sda1"; "a3a61220-882b-4f61-89f4-cf24dcc7297d"];
2051 ["get_e2uuid"; "/dev/sda1"]], "a3a61220-882b-4f61-89f4-cf24dcc7297d");
2052 InitBasicFS, Always, TestOutput (
2053 [["set_e2uuid"; "/dev/sda1"; "clear"];
2054 ["get_e2uuid"; "/dev/sda1"]], "");
2055 (* We can't predict what UUIDs will be, so just check the commands run. *)
2056 InitBasicFS, Always, TestRun (
2057 [["set_e2uuid"; "/dev/sda1"; "random"]]);
2058 InitBasicFS, Always, TestRun (
2059 [["set_e2uuid"; "/dev/sda1"; "time"]])],
2060 "set the ext2/3/4 filesystem UUID",
2062 This sets the ext2/3/4 filesystem UUID of the filesystem on
2063 C<device> to C<uuid>. The format of the UUID and alternatives
2064 such as C<clear>, C<random> and C<time> are described in the
2065 L<tune2fs(8)> manpage.
2067 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
2068 to return the existing UUID of a filesystem.");
2070 ("get_e2uuid", (RString "uuid", [String "device"]), 83, [],
2072 "get the ext2/3/4 filesystem UUID",
2074 This returns the ext2/3/4 filesystem UUID of the filesystem on
2077 ("fsck", (RInt "status", [String "fstype"; String "device"]), 84, [],
2078 [InitBasicFS, Always, TestOutputInt (
2079 [["umount"; "/dev/sda1"];
2080 ["fsck"; "ext2"; "/dev/sda1"]], 0);
2081 InitBasicFS, Always, TestOutputInt (
2082 [["umount"; "/dev/sda1"];
2083 ["zero"; "/dev/sda1"];
2084 ["fsck"; "ext2"; "/dev/sda1"]], 8)],
2085 "run the filesystem checker",
2087 This runs the filesystem checker (fsck) on C<device> which
2088 should have filesystem type C<fstype>.
2090 The returned integer is the status. See L<fsck(8)> for the
2091 list of status codes from C<fsck>.
2099 Multiple status codes can be summed together.
2103 A non-zero return code can mean \"success\", for example if
2104 errors have been corrected on the filesystem.
2108 Checking or repairing NTFS volumes is not supported
2113 This command is entirely equivalent to running C<fsck -a -t fstype device>.");
2115 ("zero", (RErr, [String "device"]), 85, [],
2116 [InitBasicFS, Always, TestOutput (
2117 [["umount"; "/dev/sda1"];
2118 ["zero"; "/dev/sda1"];
2119 ["file"; "/dev/sda1"]], "data")],
2120 "write zeroes to the device",
2122 This command writes zeroes over the first few blocks of C<device>.
2124 How many blocks are zeroed isn't specified (but it's I<not> enough
2125 to securely wipe the device). It should be sufficient to remove
2126 any partition tables, filesystem superblocks and so on.
2128 See also: C<guestfs_scrub_device>.");
2130 ("grub_install", (RErr, [String "root"; String "device"]), 86, [],
2131 (* Test disabled because grub-install incompatible with virtio-blk driver.
2132 * See also: https://bugzilla.redhat.com/show_bug.cgi?id=479760
2134 [InitBasicFS, Disabled, TestOutputTrue (
2135 [["grub_install"; "/"; "/dev/sda1"];
2136 ["is_dir"; "/boot"]])],
2139 This command installs GRUB (the Grand Unified Bootloader) on
2140 C<device>, with the root directory being C<root>.");
2142 ("cp", (RErr, [String "src"; String "dest"]), 87, [],
2143 [InitBasicFS, Always, TestOutput (
2144 [["write_file"; "/old"; "file content"; "0"];
2145 ["cp"; "/old"; "/new"];
2146 ["cat"; "/new"]], "file content");
2147 InitBasicFS, Always, TestOutputTrue (
2148 [["write_file"; "/old"; "file content"; "0"];
2149 ["cp"; "/old"; "/new"];
2150 ["is_file"; "/old"]]);
2151 InitBasicFS, Always, TestOutput (
2152 [["write_file"; "/old"; "file content"; "0"];
2154 ["cp"; "/old"; "/dir/new"];
2155 ["cat"; "/dir/new"]], "file content")],
2158 This copies a file from C<src> to C<dest> where C<dest> is
2159 either a destination filename or destination directory.");
2161 ("cp_a", (RErr, [String "src"; String "dest"]), 88, [],
2162 [InitBasicFS, Always, TestOutput (
2163 [["mkdir"; "/olddir"];
2164 ["mkdir"; "/newdir"];
2165 ["write_file"; "/olddir/file"; "file content"; "0"];
2166 ["cp_a"; "/olddir"; "/newdir"];
2167 ["cat"; "/newdir/olddir/file"]], "file content")],
2168 "copy a file or directory recursively",
2170 This copies a file or directory from C<src> to C<dest>
2171 recursively using the C<cp -a> command.");
2173 ("mv", (RErr, [String "src"; String "dest"]), 89, [],
2174 [InitBasicFS, Always, TestOutput (
2175 [["write_file"; "/old"; "file content"; "0"];
2176 ["mv"; "/old"; "/new"];
2177 ["cat"; "/new"]], "file content");
2178 InitBasicFS, Always, TestOutputFalse (
2179 [["write_file"; "/old"; "file content"; "0"];
2180 ["mv"; "/old"; "/new"];
2181 ["is_file"; "/old"]])],
2184 This moves a file from C<src> to C<dest> where C<dest> is
2185 either a destination filename or destination directory.");
2187 ("drop_caches", (RErr, [Int "whattodrop"]), 90, [],
2188 [InitEmpty, Always, TestRun (
2189 [["drop_caches"; "3"]])],
2190 "drop kernel page cache, dentries and inodes",
2192 This instructs the guest kernel to drop its page cache,
2193 and/or dentries and inode caches. The parameter C<whattodrop>
2194 tells the kernel what precisely to drop, see
2195 L<http://linux-mm.org/Drop_Caches>
2197 Setting C<whattodrop> to 3 should drop everything.
2199 This automatically calls L<sync(2)> before the operation,
2200 so that the maximum guest memory is freed.");
2202 ("dmesg", (RString "kmsgs", []), 91, [],
2203 [InitEmpty, Always, TestRun (
2205 "return kernel messages",
2207 This returns the kernel messages (C<dmesg> output) from
2208 the guest kernel. This is sometimes useful for extended
2209 debugging of problems.
2211 Another way to get the same information is to enable
2212 verbose messages with C<guestfs_set_verbose> or by setting
2213 the environment variable C<LIBGUESTFS_DEBUG=1> before
2214 running the program.");
2216 ("ping_daemon", (RErr, []), 92, [],
2217 [InitEmpty, Always, TestRun (
2218 [["ping_daemon"]])],
2219 "ping the guest daemon",
2221 This is a test probe into the guestfs daemon running inside
2222 the qemu subprocess. Calling this function checks that the
2223 daemon responds to the ping message, without affecting the daemon
2224 or attached block device(s) in any other way.");
2226 ("equal", (RBool "equality", [String "file1"; String "file2"]), 93, [],
2227 [InitBasicFS, Always, TestOutputTrue (
2228 [["write_file"; "/file1"; "contents of a file"; "0"];
2229 ["cp"; "/file1"; "/file2"];
2230 ["equal"; "/file1"; "/file2"]]);
2231 InitBasicFS, Always, TestOutputFalse (
2232 [["write_file"; "/file1"; "contents of a file"; "0"];
2233 ["write_file"; "/file2"; "contents of another file"; "0"];
2234 ["equal"; "/file1"; "/file2"]]);
2235 InitBasicFS, Always, TestLastFail (
2236 [["equal"; "/file1"; "/file2"]])],
2237 "test if two files have equal contents",
2239 This compares the two files C<file1> and C<file2> and returns
2240 true if their content is exactly equal, or false otherwise.
2242 The external L<cmp(1)> program is used for the comparison.");
2244 ("strings", (RStringList "stringsout", [String "path"]), 94, [ProtocolLimitWarning],
2245 [InitBasicFS, Always, TestOutputList (
2246 [["write_file"; "/new"; "hello\nworld\n"; "0"];
2247 ["strings"; "/new"]], ["hello"; "world"]);
2248 InitBasicFS, Always, TestOutputList (
2250 ["strings"; "/new"]], [])],
2251 "print the printable strings in a file",
2253 This runs the L<strings(1)> command on a file and returns
2254 the list of printable strings found.");
2256 ("strings_e", (RStringList "stringsout", [String "encoding"; String "path"]), 95, [ProtocolLimitWarning],
2257 [InitBasicFS, Always, TestOutputList (
2258 [["write_file"; "/new"; "hello\nworld\n"; "0"];
2259 ["strings_e"; "b"; "/new"]], []);
2260 InitBasicFS, Disabled, TestOutputList (
2261 [["write_file"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"; "24"];
2262 ["strings_e"; "b"; "/new"]], ["hello"; "world"])],
2263 "print the printable strings in a file",
2265 This is like the C<guestfs_strings> command, but allows you to
2266 specify the encoding.
2268 See the L<strings(1)> manpage for the full list of encodings.
2270 Commonly useful encodings are C<l> (lower case L) which will
2271 show strings inside Windows/x86 files.
2273 The returned strings are transcoded to UTF-8.");
2275 ("hexdump", (RString "dump", [String "path"]), 96, [ProtocolLimitWarning],
2276 [InitBasicFS, Always, TestOutput (
2277 [["write_file"; "/new"; "hello\nworld\n"; "12"];
2278 ["hexdump"; "/new"]], "00000000 68 65 6c 6c 6f 0a 77 6f 72 6c 64 0a |hello.world.|\n0000000c\n");
2279 (* Test for RHBZ#501888c2 regression which caused large hexdump
2280 * commands to segfault.
2282 InitBasicFS, Always, TestRun (
2283 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2284 ["hexdump"; "/100krandom"]])],
2285 "dump a file in hexadecimal",
2287 This runs C<hexdump -C> on the given C<path>. The result is
2288 the human-readable, canonical hex dump of the file.");
2290 ("zerofree", (RErr, [String "device"]), 97, [],
2291 [InitNone, Always, TestOutput (
2292 [["sfdiskM"; "/dev/sda"; ","];
2293 ["mkfs"; "ext3"; "/dev/sda1"];
2294 ["mount"; "/dev/sda1"; "/"];
2295 ["write_file"; "/new"; "test file"; "0"];
2296 ["umount"; "/dev/sda1"];
2297 ["zerofree"; "/dev/sda1"];
2298 ["mount"; "/dev/sda1"; "/"];
2299 ["cat"; "/new"]], "test file")],
2300 "zero unused inodes and disk blocks on ext2/3 filesystem",
2302 This runs the I<zerofree> program on C<device>. This program
2303 claims to zero unused inodes and disk blocks on an ext2/3
2304 filesystem, thus making it possible to compress the filesystem
2307 You should B<not> run this program if the filesystem is
2310 It is possible that using this program can damage the filesystem
2311 or data on the filesystem.");
2313 ("pvresize", (RErr, [String "device"]), 98, [],
2315 "resize an LVM physical volume",
2317 This resizes (expands or shrinks) an existing LVM physical
2318 volume to match the new size of the underlying device.");
2320 ("sfdisk_N", (RErr, [String "device"; Int "partnum";
2321 Int "cyls"; Int "heads"; Int "sectors";
2322 String "line"]), 99, [DangerWillRobinson],
2324 "modify a single partition on a block device",
2326 This runs L<sfdisk(8)> option to modify just the single
2327 partition C<n> (note: C<n> counts from 1).
2329 For other parameters, see C<guestfs_sfdisk>. You should usually
2330 pass C<0> for the cyls/heads/sectors parameters.");
2332 ("sfdisk_l", (RString "partitions", [String "device"]), 100, [],
2334 "display the partition table",
2336 This displays the partition table on C<device>, in the
2337 human-readable output of the L<sfdisk(8)> command. It is
2338 not intended to be parsed.");
2340 ("sfdisk_kernel_geometry", (RString "partitions", [String "device"]), 101, [],
2342 "display the kernel geometry",
2344 This displays the kernel's idea of the geometry of C<device>.
2346 The result is in human-readable format, and not designed to
2349 ("sfdisk_disk_geometry", (RString "partitions", [String "device"]), 102, [],
2351 "display the disk geometry from the partition table",
2353 This displays the disk geometry of C<device> read from the
2354 partition table. Especially in the case where the underlying
2355 block device has been resized, this can be different from the
2356 kernel's idea of the geometry (see C<guestfs_sfdisk_kernel_geometry>).
2358 The result is in human-readable format, and not designed to
2361 ("vg_activate_all", (RErr, [Bool "activate"]), 103, [],
2363 "activate or deactivate all volume groups",
2365 This command activates or (if C<activate> is false) deactivates
2366 all logical volumes in all volume groups.
2367 If activated, then they are made known to the
2368 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2369 then those devices disappear.
2371 This command is the same as running C<vgchange -a y|n>");
2373 ("vg_activate", (RErr, [Bool "activate"; StringList "volgroups"]), 104, [],
2375 "activate or deactivate some volume groups",
2377 This command activates or (if C<activate> is false) deactivates
2378 all logical volumes in the listed volume groups C<volgroups>.
2379 If activated, then they are made known to the
2380 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2381 then those devices disappear.
2383 This command is the same as running C<vgchange -a y|n volgroups...>
2385 Note that if C<volgroups> is an empty list then B<all> volume groups
2386 are activated or deactivated.");
2388 ("lvresize", (RErr, [String "device"; Int "mbytes"]), 105, [],
2389 [InitNone, Always, TestOutput (
2390 [["sfdiskM"; "/dev/sda"; ","];
2391 ["pvcreate"; "/dev/sda1"];
2392 ["vgcreate"; "VG"; "/dev/sda1"];
2393 ["lvcreate"; "LV"; "VG"; "10"];
2394 ["mkfs"; "ext2"; "/dev/VG/LV"];
2395 ["mount"; "/dev/VG/LV"; "/"];
2396 ["write_file"; "/new"; "test content"; "0"];
2398 ["lvresize"; "/dev/VG/LV"; "20"];
2399 ["e2fsck_f"; "/dev/VG/LV"];
2400 ["resize2fs"; "/dev/VG/LV"];
2401 ["mount"; "/dev/VG/LV"; "/"];
2402 ["cat"; "/new"]], "test content")],
2403 "resize an LVM logical volume",
2405 This resizes (expands or shrinks) an existing LVM logical
2406 volume to C<mbytes>. When reducing, data in the reduced part
2409 ("resize2fs", (RErr, [String "device"]), 106, [],
2410 [], (* lvresize tests this *)
2411 "resize an ext2/ext3 filesystem",
2413 This resizes an ext2 or ext3 filesystem to match the size of
2414 the underlying device.
2416 I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
2417 on the C<device> before calling this command. For unknown reasons
2418 C<resize2fs> sometimes gives an error about this and sometimes not.
2419 In any case, it is always safe to call C<guestfs_e2fsck_f> before
2420 calling this function.");
2422 ("find", (RStringList "names", [String "directory"]), 107, [],
2423 [InitBasicFS, Always, TestOutputList (
2424 [["find"; "/"]], ["lost+found"]);
2425 InitBasicFS, Always, TestOutputList (
2429 ["find"; "/"]], ["a"; "b"; "b/c"; "lost+found"]);
2430 InitBasicFS, Always, TestOutputList (
2431 [["mkdir_p"; "/a/b/c"];
2432 ["touch"; "/a/b/c/d"];
2433 ["find"; "/a/b/"]], ["c"; "c/d"])],
2434 "find all files and directories",
2436 This command lists out all files and directories, recursively,
2437 starting at C<directory>. It is essentially equivalent to
2438 running the shell command C<find directory -print> but some
2439 post-processing happens on the output, described below.
2441 This returns a list of strings I<without any prefix>. Thus
2442 if the directory structure was:
2448 then the returned list from C<guestfs_find> C</tmp> would be
2456 If C<directory> is not a directory, then this command returns
2459 The returned list is sorted.");
2461 ("e2fsck_f", (RErr, [String "device"]), 108, [],
2462 [], (* lvresize tests this *)
2463 "check an ext2/ext3 filesystem",
2465 This runs C<e2fsck -p -f device>, ie. runs the ext2/ext3
2466 filesystem checker on C<device>, noninteractively (C<-p>),
2467 even if the filesystem appears to be clean (C<-f>).
2469 This command is only needed because of C<guestfs_resize2fs>
2470 (q.v.). Normally you should use C<guestfs_fsck>.");
2472 ("sleep", (RErr, [Int "secs"]), 109, [],
2473 [InitNone, Always, TestRun (
2475 "sleep for some seconds",
2477 Sleep for C<secs> seconds.");
2479 ("ntfs_3g_probe", (RInt "status", [Bool "rw"; String "device"]), 110, [],
2480 [InitNone, Always, TestOutputInt (
2481 [["sfdiskM"; "/dev/sda"; ","];
2482 ["mkfs"; "ntfs"; "/dev/sda1"];
2483 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 0);
2484 InitNone, Always, TestOutputInt (
2485 [["sfdiskM"; "/dev/sda"; ","];
2486 ["mkfs"; "ext2"; "/dev/sda1"];
2487 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 12)],
2488 "probe NTFS volume",
2490 This command runs the L<ntfs-3g.probe(8)> command which probes
2491 an NTFS C<device> for mountability. (Not all NTFS volumes can
2492 be mounted read-write, and some cannot be mounted at all).
2494 C<rw> is a boolean flag. Set it to true if you want to test
2495 if the volume can be mounted read-write. Set it to false if
2496 you want to test if the volume can be mounted read-only.
2498 The return value is an integer which C<0> if the operation
2499 would succeed, or some non-zero value documented in the
2500 L<ntfs-3g.probe(8)> manual page.");
2502 ("sh", (RString "output", [String "command"]), 111, [],
2503 [], (* XXX needs tests *)
2504 "run a command via the shell",
2506 This call runs a command from the guest filesystem via the
2509 This is like C<guestfs_command>, but passes the command to:
2511 /bin/sh -c \"command\"
2513 Depending on the guest's shell, this usually results in
2514 wildcards being expanded, shell expressions being interpolated
2517 All the provisos about C<guestfs_command> apply to this call.");
2519 ("sh_lines", (RStringList "lines", [String "command"]), 112, [],
2520 [], (* XXX needs tests *)
2521 "run a command via the shell returning lines",
2523 This is the same as C<guestfs_sh>, but splits the result
2524 into a list of lines.
2526 See also: C<guestfs_command_lines>");
2528 ("glob_expand", (RStringList "paths", [String "pattern"]), 113, [],
2529 [InitBasicFS, Always, TestOutputList (
2530 [["mkdir_p"; "/a/b/c"];
2531 ["touch"; "/a/b/c/d"];
2532 ["touch"; "/a/b/c/e"];
2533 ["glob_expand"; "/a/b/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2534 InitBasicFS, Always, TestOutputList (
2535 [["mkdir_p"; "/a/b/c"];
2536 ["touch"; "/a/b/c/d"];
2537 ["touch"; "/a/b/c/e"];
2538 ["glob_expand"; "/a/*/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2539 InitBasicFS, Always, TestOutputList (
2540 [["mkdir_p"; "/a/b/c"];
2541 ["touch"; "/a/b/c/d"];
2542 ["touch"; "/a/b/c/e"];
2543 ["glob_expand"; "/a/*/x/*"]], [])],
2544 "expand a wildcard path",
2546 This command searches for all the pathnames matching
2547 C<pattern> according to the wildcard expansion rules
2550 If no paths match, then this returns an empty list
2551 (note: not an error).
2553 It is just a wrapper around the C L<glob(3)> function
2554 with flags C<GLOB_MARK|GLOB_BRACE>.
2555 See that manual page for more details.");
2557 ("scrub_device", (RErr, [String "device"]), 114, [DangerWillRobinson],
2558 [InitNone, Always, TestRun ( (* use /dev/sdc because it's smaller *)
2559 [["scrub_device"; "/dev/sdc"]])],
2560 "scrub (securely wipe) a device",
2562 This command writes patterns over C<device> to make data retrieval
2565 It is an interface to the L<scrub(1)> program. See that
2566 manual page for more details.");
2568 ("scrub_file", (RErr, [String "file"]), 115, [],
2569 [InitBasicFS, Always, TestRun (
2570 [["write_file"; "/file"; "content"; "0"];
2571 ["scrub_file"; "/file"]])],
2572 "scrub (securely wipe) a file",
2574 This command writes patterns over a file to make data retrieval
2577 The file is I<removed> after scrubbing.
2579 It is an interface to the L<scrub(1)> program. See that
2580 manual page for more details.");
2582 ("scrub_freespace", (RErr, [String "dir"]), 116, [],
2583 [], (* XXX needs testing *)
2584 "scrub (securely wipe) free space",
2586 This command creates the directory C<dir> and then fills it
2587 with files until the filesystem is full, and scrubs the files
2588 as for C<guestfs_scrub_file>, and deletes them.
2589 The intention is to scrub any free space on the partition
2592 It is an interface to the L<scrub(1)> program. See that
2593 manual page for more details.");
2595 ("mkdtemp", (RString "dir", [String "template"]), 117, [],
2596 [InitBasicFS, Always, TestRun (
2598 ["mkdtemp"; "/tmp/tmpXXXXXX"]])],
2599 "create a temporary directory",
2601 This command creates a temporary directory. The
2602 C<template> parameter should be a full pathname for the
2603 temporary directory name with the final six characters being
2606 For example: \"/tmp/myprogXXXXXX\" or \"/Temp/myprogXXXXXX\",
2607 the second one being suitable for Windows filesystems.
2609 The name of the temporary directory that was created
2612 The temporary directory is created with mode 0700
2613 and is owned by root.
2615 The caller is responsible for deleting the temporary
2616 directory and its contents after use.
2618 See also: L<mkdtemp(3)>");
2620 ("wc_l", (RInt "lines", [String "path"]), 118, [],
2621 [InitBasicFS, Always, TestOutputInt (
2622 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2623 ["wc_l"; "/10klines"]], 10000)],
2624 "count lines in a file",
2626 This command counts the lines in a file, using the
2627 C<wc -l> external command.");
2629 ("wc_w", (RInt "words", [String "path"]), 119, [],
2630 [InitBasicFS, Always, TestOutputInt (
2631 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
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 [InitBasicFS, Always, TestOutputInt (
2640 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2641 ["wc_c"; "/100kallspaces"]], 102400)],
2642 "count characters in a file",
2644 This command counts the characters in a file, using the
2645 C<wc -c> external command.");
2647 ("head", (RStringList "lines", [String "path"]), 121, [ProtocolLimitWarning],
2648 [InitBasicFS, Always, TestOutputList (
2649 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2650 ["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
2651 "return first 10 lines of a file",
2653 This command returns up to the first 10 lines of a file as
2654 a list of strings.");
2656 ("head_n", (RStringList "lines", [Int "nrlines"; String "path"]), 122, [ProtocolLimitWarning],
2657 [InitBasicFS, Always, TestOutputList (
2658 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2659 ["head_n"; "3"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2660 InitBasicFS, Always, TestOutputList (
2661 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2662 ["head_n"; "-9997"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2663 InitBasicFS, Always, TestOutputList (
2664 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2665 ["head_n"; "0"; "/10klines"]], [])],
2666 "return first N lines of a file",
2668 If the parameter C<nrlines> is a positive number, this returns the first
2669 C<nrlines> lines of the file C<path>.
2671 If the parameter C<nrlines> is a negative number, this returns lines
2672 from the file C<path>, excluding the last C<nrlines> lines.
2674 If the parameter C<nrlines> is zero, this returns an empty list.");
2676 ("tail", (RStringList "lines", [String "path"]), 123, [ProtocolLimitWarning],
2677 [InitBasicFS, Always, TestOutputList (
2678 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2679 ["tail"; "/10klines"]], ["9990abcdefghijklmnopqrstuvwxyz";"9991abcdefghijklmnopqrstuvwxyz";"9992abcdefghijklmnopqrstuvwxyz";"9993abcdefghijklmnopqrstuvwxyz";"9994abcdefghijklmnopqrstuvwxyz";"9995abcdefghijklmnopqrstuvwxyz";"9996abcdefghijklmnopqrstuvwxyz";"9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"])],
2680 "return last 10 lines of a file",
2682 This command returns up to the last 10 lines of a file as
2683 a list of strings.");
2685 ("tail_n", (RStringList "lines", [Int "nrlines"; String "path"]), 124, [ProtocolLimitWarning],
2686 [InitBasicFS, Always, TestOutputList (
2687 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2688 ["tail_n"; "3"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2689 InitBasicFS, Always, TestOutputList (
2690 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2691 ["tail_n"; "-9998"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2692 InitBasicFS, Always, TestOutputList (
2693 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2694 ["tail_n"; "0"; "/10klines"]], [])],
2695 "return last N lines of a file",
2697 If the parameter C<nrlines> is a positive number, this returns the last
2698 C<nrlines> lines of the file C<path>.
2700 If the parameter C<nrlines> is a negative number, this returns lines
2701 from the file C<path>, starting with the C<-nrlines>th line.
2703 If the parameter C<nrlines> is zero, this returns an empty list.");
2705 ("df", (RString "output", []), 125, [],
2706 [], (* XXX Tricky to test because it depends on the exact format
2707 * of the 'df' command and other imponderables.
2709 "report file system disk space usage",
2711 This command runs the C<df> command to report disk space used.
2713 This command is mostly useful for interactive sessions. It
2714 is I<not> intended that you try to parse the output string.
2715 Use C<statvfs> from programs.");
2717 ("df_h", (RString "output", []), 126, [],
2718 [], (* XXX Tricky to test because it depends on the exact format
2719 * of the 'df' command and other imponderables.
2721 "report file system disk space usage (human readable)",
2723 This command runs the C<df -h> command to report disk space used
2724 in human-readable format.
2726 This command is mostly useful for interactive sessions. It
2727 is I<not> intended that you try to parse the output string.
2728 Use C<statvfs> from programs.");
2730 ("du", (RInt64 "sizekb", [String "path"]), 127, [],
2731 [InitBasicFS, Always, TestOutputInt (
2733 ["du"; "/p"]], 1 (* ie. 1 block, so depends on ext3 blocksize *))],
2734 "estimate file space usage",
2736 This command runs the C<du -s> command to estimate file space
2739 C<path> can be a file or a directory. If C<path> is a directory
2740 then the estimate includes the contents of the directory and all
2741 subdirectories (recursively).
2743 The result is the estimated size in I<kilobytes>
2744 (ie. units of 1024 bytes).");
2746 ("initrd_list", (RStringList "filenames", [String "path"]), 128, [],
2747 [InitBasicFS, Always, TestOutputList (
2748 [["mount_vfs"; "ro"; "squashfs"; "/dev/sdd"; "/"];
2749 ["initrd_list"; "/initrd"]], ["empty";"known-1";"known-2";"known-3"])],
2750 "list files in an initrd",
2752 This command lists out files contained in an initrd.
2754 The files are listed without any initial C</> character. The
2755 files are listed in the order they appear (not necessarily
2756 alphabetical). Directory names are listed as separate items.
2758 Old Linux kernels (2.4 and earlier) used a compressed ext2
2759 filesystem as initrd. We I<only> support the newer initramfs
2760 format (compressed cpio files).");
2762 ("mount_loop", (RErr, [String "file"; String "mountpoint"]), 129, [],
2764 "mount a file using the loop device",
2766 This command lets you mount C<file> (a filesystem image
2767 in a file) on a mount point. It is entirely equivalent to
2768 the command C<mount -o loop file mountpoint>.");
2770 ("mkswap", (RErr, [String "device"]), 130, [],
2771 [InitEmpty, Always, TestRun (
2772 [["sfdiskM"; "/dev/sda"; ","];
2773 ["mkswap"; "/dev/sda1"]])],
2774 "create a swap partition",
2776 Create a swap partition on C<device>.");
2778 ("mkswap_L", (RErr, [String "label"; String "device"]), 131, [],
2779 [InitEmpty, Always, TestRun (
2780 [["sfdiskM"; "/dev/sda"; ","];
2781 ["mkswap_L"; "hello"; "/dev/sda1"]])],
2782 "create a swap partition with a label",
2784 Create a swap partition on C<device> with label C<label>.");
2786 ("mkswap_U", (RErr, [String "uuid"; String "device"]), 132, [],
2787 [InitEmpty, Always, TestRun (
2788 [["sfdiskM"; "/dev/sda"; ","];
2789 ["mkswap_U"; "a3a61220-882b-4f61-89f4-cf24dcc7297d"; "/dev/sda1"]])],
2790 "create a swap partition with an explicit UUID",
2792 Create a swap partition on C<device> with UUID C<uuid>.");
2794 ("mknod", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 133, [],
2795 [InitBasicFS, Always, TestOutputStruct (
2796 [["mknod"; "0o10777"; "0"; "0"; "/node"];
2797 (* NB: default umask 022 means 0777 -> 0755 in these tests *)
2798 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)]);
2799 InitBasicFS, Always, TestOutputStruct (
2800 [["mknod"; "0o60777"; "66"; "99"; "/node"];
2801 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2802 "make block, character or FIFO devices",
2804 This call creates block or character special devices, or
2805 named pipes (FIFOs).
2807 The C<mode> parameter should be the mode, using the standard
2808 constants. C<devmajor> and C<devminor> are the
2809 device major and minor numbers, only used when creating block
2810 and character special devices.");
2812 ("mkfifo", (RErr, [Int "mode"; String "path"]), 134, [],
2813 [InitBasicFS, Always, TestOutputStruct (
2814 [["mkfifo"; "0o777"; "/node"];
2815 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)])],
2816 "make FIFO (named pipe)",
2818 This call creates a FIFO (named pipe) called C<path> with
2819 mode C<mode>. It is just a convenient wrapper around
2820 C<guestfs_mknod>.");
2822 ("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 135, [],
2823 [InitBasicFS, Always, TestOutputStruct (
2824 [["mknod_b"; "0o777"; "99"; "66"; "/node"];
2825 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2826 "make block device node",
2828 This call creates a block 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 ("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; String "path"]), 136, [],
2833 [InitBasicFS, Always, TestOutputStruct (
2834 [["mknod_c"; "0o777"; "99"; "66"; "/node"];
2835 ["stat"; "/node"]], [CompareWithInt ("mode", 0o20755)])],
2836 "make char device node",
2838 This call creates a char device node called C<path> with
2839 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
2840 It is just a convenient wrapper around C<guestfs_mknod>.");
2842 ("umask", (RInt "oldmask", [Int "mask"]), 137, [],
2843 [], (* XXX umask is one of those stateful things that we should
2844 * reset between each test.
2846 "set file mode creation mask (umask)",
2848 This function sets the mask used for creating new files and
2849 device nodes to C<mask & 0777>.
2851 Typical umask values would be C<022> which creates new files
2852 with permissions like \"-rw-r--r--\" or \"-rwxr-xr-x\", and
2853 C<002> which creates new files with permissions like
2854 \"-rw-rw-r--\" or \"-rwxrwxr-x\".
2856 The default umask is C<022>. This is important because it
2857 means that directories and device nodes will be created with
2858 C<0644> or C<0755> mode even if you specify C<0777>.
2860 See also L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
2862 This call returns the previous umask.");
2864 ("readdir", (RStructList ("entries", "dirent"), [String "dir"]), 138, [],
2866 "read directories entries",
2868 This returns the list of directory entries in directory C<dir>.
2870 All entries in the directory are returned, including C<.> and
2871 C<..>. The entries are I<not> sorted, but returned in the same
2872 order as the underlying filesystem.
2874 Also this call returns basic file type information about each
2875 file. The C<ftyp> field will contain one of the following characters:
2913 The L<readdir(3)> returned a C<d_type> field with an
2918 This function is primarily intended for use by programs. To
2919 get a simple list of names, use C<guestfs_ls>. To get a printable
2920 directory for human consumption, use C<guestfs_ll>.");
2922 ("sfdiskM", (RErr, [String "device"; StringList "lines"]), 139, [DangerWillRobinson],
2924 "create partitions on a block device",
2926 This is a simplified interface to the C<guestfs_sfdisk>
2927 command, where partition sizes are specified in megabytes
2928 only (rounded to the nearest cylinder) and you don't need
2929 to specify the cyls, heads and sectors parameters which
2930 were rarely if ever used anyway.
2932 See also C<guestfs_sfdisk> and the L<sfdisk(8)> manpage.");
2934 ("zfile", (RString "description", [String "method"; String "path"]), 140, [],
2936 "determine file type inside a compressed file",
2938 This command runs C<file> after first decompressing C<path>
2941 C<method> must be one of C<gzip>, C<compress> or C<bzip2>.
2943 See also: C<guestfs_file>");
2945 ("getxattrs", (RStructList ("xattrs", "xattr"), [String "path"]), 141, [],
2947 "list extended attributes of a file or directory",
2949 This call lists the extended attributes of the file or directory
2952 At the system call level, this is a combination of the
2953 L<listxattr(2)> and L<getxattr(2)> calls.
2955 See also: C<guestfs_lgetxattrs>, L<attr(5)>.");
2957 ("lgetxattrs", (RStructList ("xattrs", "xattr"), [String "path"]), 142, [],
2959 "list extended attributes of a file or directory",
2961 This is the same as C<guestfs_getxattrs>, but if C<path>
2962 is a symbolic link, then it returns the extended attributes
2963 of the link itself.");
2965 ("setxattr", (RErr, [String "xattr";
2966 String "val"; Int "vallen"; (* will be BufferIn *)
2967 String "path"]), 143, [],
2969 "set extended attribute of a file or directory",
2971 This call sets the extended attribute named C<xattr>
2972 of the file C<path> to the value C<val> (of length C<vallen>).
2973 The value is arbitrary 8 bit data.
2975 See also: C<guestfs_lsetxattr>, L<attr(5)>.");
2977 ("lsetxattr", (RErr, [String "xattr";
2978 String "val"; Int "vallen"; (* will be BufferIn *)
2979 String "path"]), 144, [],
2981 "set extended attribute of a file or directory",
2983 This is the same as C<guestfs_setxattr>, but if C<path>
2984 is a symbolic link, then it sets an extended attribute
2985 of the link itself.");
2987 ("removexattr", (RErr, [String "xattr"; String "path"]), 145, [],
2989 "remove extended attribute of a file or directory",
2991 This call removes the extended attribute named C<xattr>
2992 of the file C<path>.
2994 See also: C<guestfs_lremovexattr>, L<attr(5)>.");
2996 ("lremovexattr", (RErr, [String "xattr"; String "path"]), 146, [],
2998 "remove extended attribute of a file or directory",
3000 This is the same as C<guestfs_removexattr>, but if C<path>
3001 is a symbolic link, then it removes an extended attribute
3002 of the link itself.");
3004 ("mountpoints", (RHashtable "mps", []), 147, [],
3008 This call is similar to C<guestfs_mounts>. That call returns
3009 a list of devices. This one returns a hash table (map) of
3010 device name to directory where the device is mounted.");
3012 ("mkmountpoint", (RErr, [String "path"]), 148, [],
3014 "create a mountpoint",
3016 C<guestfs_mkmountpoint> and C<guestfs_rmmountpoint> are
3017 specialized calls that can be used to create extra mountpoints
3018 before mounting the first filesystem.
3020 These calls are I<only> necessary in some very limited circumstances,
3021 mainly the case where you want to mount a mix of unrelated and/or
3022 read-only filesystems together.
3024 For example, live CDs often contain a \"Russian doll\" nest of
3025 filesystems, an ISO outer layer, with a squashfs image inside, with
3026 an ext2/3 image inside that. You can unpack this as follows
3029 add-ro Fedora-11-i686-Live.iso
3032 mkmountpoint /squash
3035 mount-loop /cd/LiveOS/squashfs.img /squash
3036 mount-loop /squash/LiveOS/ext3fs.img /ext3
3038 The inner filesystem is now unpacked under the /ext3 mountpoint.");
3040 ("rmmountpoint", (RErr, [String "path"]), 149, [],
3042 "remove a mountpoint",
3044 This calls removes a mountpoint that was previously created
3045 with C<guestfs_mkmountpoint>. See C<guestfs_mkmountpoint>
3046 for full details.");
3048 ("read_file", (RBufferOut "content", [String "path"]), 150, [ProtocolLimitWarning],
3049 [InitBasicFS, Always, TestOutput (
3050 [["write_file"; "/new"; "new file contents"; "0"];
3051 ["read_file"; "/new"]], "new file contents")],
3054 This calls returns the contents of the file C<path> as a
3057 Unlike C<guestfs_cat>, this function can correctly
3058 handle files that contain embedded ASCII NUL characters.
3059 However unlike C<guestfs_download>, this function is limited
3060 in the total size of file that can be handled.");
3064 let all_functions = non_daemon_functions @ daemon_functions
3066 (* In some places we want the functions to be displayed sorted
3067 * alphabetically, so this is useful:
3069 let all_functions_sorted =
3070 List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
3071 compare n1 n2) all_functions
3073 (* Field types for structures. *)
3075 | FChar (* C 'char' (really, a 7 bit byte). *)
3076 | FString (* nul-terminated ASCII string. *)
3077 | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
3082 | FBytes (* Any int measure that counts bytes. *)
3083 | FUUID (* 32 bytes long, NOT nul-terminated. *)
3084 | FOptPercent (* [0..100], or -1 meaning "not present". *)
3086 (* Because we generate extra parsing code for LVM command line tools,
3087 * we have to pull out the LVM columns separately here.
3097 "pv_attr", FString (* XXX *);
3098 "pv_pe_count", FInt64;
3099 "pv_pe_alloc_count", FInt64;
3102 "pv_mda_count", FInt64;
3103 "pv_mda_free", FBytes;
3104 (* Not in Fedora 10:
3105 "pv_mda_size", FBytes;
3112 "vg_attr", FString (* XXX *);
3115 "vg_sysid", FString;
3116 "vg_extent_size", FBytes;
3117 "vg_extent_count", FInt64;
3118 "vg_free_count", FInt64;
3123 "snap_count", FInt64;
3126 "vg_mda_count", FInt64;
3127 "vg_mda_free", FBytes;
3128 (* Not in Fedora 10:
3129 "vg_mda_size", FBytes;
3135 "lv_attr", FString (* XXX *);
3138 "lv_kernel_major", FInt64;
3139 "lv_kernel_minor", FInt64;
3141 "seg_count", FInt64;
3143 "snap_percent", FOptPercent;
3144 "copy_percent", FOptPercent;
3147 "mirror_log", FString;
3151 (* Names and fields in all structures (in RStruct and RStructList)
3155 (* The old RIntBool return type, only ever used for aug_defnode. Do
3156 * not use this struct in any new code.
3159 "i", FInt32; (* for historical compatibility *)
3160 "b", FInt32; (* for historical compatibility *)
3163 (* LVM PVs, VGs, LVs. *)
3164 "lvm_pv", lvm_pv_cols;
3165 "lvm_vg", lvm_vg_cols;
3166 "lvm_lv", lvm_lv_cols;
3168 (* Column names and types from stat structures.
3169 * NB. Can't use things like 'st_atime' because glibc header files
3170 * define some of these as macros. Ugh.
3201 (* Column names in dirent structure. *)
3204 (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
3209 (* Version numbers. *)
3217 (* Extended attribute. *)
3219 "attrname", FString;
3222 ] (* end of structs *)
3224 (* Ugh, Java has to be different ..
3225 * These names are also used by the Haskell bindings.
3227 let java_structs = [
3228 "int_bool", "IntBool";
3233 "statvfs", "StatVFS";
3235 "version", "Version";
3239 (* Used for testing language bindings. *)
3241 | CallString of string
3242 | CallOptString of string option
3243 | CallStringList of string list
3247 (* Used to memoize the result of pod2text. *)
3248 let pod2text_memo_filename = "src/.pod2text.data"
3249 let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
3251 let chan = open_in pod2text_memo_filename in
3252 let v = input_value chan in
3256 _ -> Hashtbl.create 13
3258 (* Useful functions.
3259 * Note we don't want to use any external OCaml libraries which
3260 * makes this a bit harder than it should be.
3262 let failwithf fs = ksprintf failwith fs
3264 let replace_char s c1 c2 =
3265 let s2 = String.copy s in
3266 let r = ref false in
3267 for i = 0 to String.length s2 - 1 do
3268 if String.unsafe_get s2 i = c1 then (
3269 String.unsafe_set s2 i c2;
3273 if not !r then s else s2
3277 (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
3279 let triml ?(test = isspace) str =
3281 let n = ref (String.length str) in
3282 while !n > 0 && test str.[!i]; do
3287 else String.sub str !i !n
3289 let trimr ?(test = isspace) str =
3290 let n = ref (String.length str) in
3291 while !n > 0 && test str.[!n-1]; do
3294 if !n = String.length str then str
3295 else String.sub str 0 !n
3297 let trim ?(test = isspace) str =
3298 trimr ~test (triml ~test str)
3300 let rec find s sub =
3301 let len = String.length s in
3302 let sublen = String.length sub in
3304 if i <= len-sublen then (
3306 if j < sublen then (
3307 if s.[i+j] = sub.[j] then loop2 (j+1)
3313 if r = -1 then loop (i+1) else r
3319 let rec replace_str s s1 s2 =
3320 let len = String.length s in
3321 let sublen = String.length s1 in
3322 let i = find s s1 in
3325 let s' = String.sub s 0 i in
3326 let s'' = String.sub s (i+sublen) (len-i-sublen) in
3327 s' ^ s2 ^ replace_str s'' s1 s2
3330 let rec string_split sep str =
3331 let len = String.length str in
3332 let seplen = String.length sep in
3333 let i = find str sep in
3334 if i = -1 then [str]
3336 let s' = String.sub str 0 i in
3337 let s'' = String.sub str (i+seplen) (len-i-seplen) in
3338 s' :: string_split sep s''
3341 let files_equal n1 n2 =
3342 let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
3343 match Sys.command cmd with
3346 | i -> failwithf "%s: failed with error code %d" cmd i
3348 let rec find_map f = function
3349 | [] -> raise Not_found
3353 | None -> find_map f xs
3356 let rec loop i = function
3358 | x :: xs -> f i x; loop (i+1) xs
3363 let rec loop i = function
3365 | x :: xs -> let r = f i x in r :: loop (i+1) xs
3369 let name_of_argt = function
3370 | String n | OptString n | StringList n | Bool n | Int n
3371 | FileIn n | FileOut n -> n
3373 let java_name_of_struct typ =
3374 try List.assoc typ java_structs
3377 "java_name_of_struct: no java_structs entry corresponding to %s" typ
3379 let cols_of_struct typ =
3380 try List.assoc typ structs
3382 failwithf "cols_of_struct: unknown struct %s" typ
3384 let seq_of_test = function
3385 | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
3386 | TestOutputListOfDevices (s, _)
3387 | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
3388 | TestOutputTrue s | TestOutputFalse s
3389 | TestOutputLength (s, _) | TestOutputStruct (s, _)
3390 | TestLastFail s -> s
3392 (* Check function names etc. for consistency. *)
3393 let check_functions () =
3394 let contains_uppercase str =
3395 let len = String.length str in
3397 if i >= len then false
3400 if c >= 'A' && c <= 'Z' then true
3407 (* Check function names. *)
3409 fun (name, _, _, _, _, _, _) ->
3410 if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
3411 failwithf "function name %s does not need 'guestfs' prefix" name;
3413 failwithf "function name is empty";
3414 if name.[0] < 'a' || name.[0] > 'z' then
3415 failwithf "function name %s must start with lowercase a-z" name;
3416 if String.contains name '-' then
3417 failwithf "function name %s should not contain '-', use '_' instead."
3421 (* Check function parameter/return names. *)
3423 fun (name, style, _, _, _, _, _) ->
3424 let check_arg_ret_name n =
3425 if contains_uppercase n then
3426 failwithf "%s param/ret %s should not contain uppercase chars"
3428 if String.contains n '-' || String.contains n '_' then
3429 failwithf "%s param/ret %s should not contain '-' or '_'"
3432 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;
3433 if n = "int" || n = "char" || n = "short" || n = "long" then
3434 failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
3435 if n = "i" || n = "n" then
3436 failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
3437 if n = "argv" || n = "args" then
3438 failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name
3441 (match fst style with
3443 | RInt n | RInt64 n | RBool n | RConstString n | RString n
3444 | RStringList n | RStruct (n, _) | RStructList (n, _)
3445 | RHashtable n | RBufferOut n ->
3446 check_arg_ret_name n
3448 List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
3451 (* Check short descriptions. *)
3453 fun (name, _, _, _, _, shortdesc, _) ->
3454 if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
3455 failwithf "short description of %s should begin with lowercase." name;
3456 let c = shortdesc.[String.length shortdesc-1] in
3457 if c = '\n' || c = '.' then
3458 failwithf "short description of %s should not end with . or \\n." name
3461 (* Check long dscriptions. *)
3463 fun (name, _, _, _, _, _, longdesc) ->
3464 if longdesc.[String.length longdesc-1] = '\n' then
3465 failwithf "long description of %s should not end with \\n." name
3468 (* Check proc_nrs. *)
3470 fun (name, _, proc_nr, _, _, _, _) ->
3471 if proc_nr <= 0 then
3472 failwithf "daemon function %s should have proc_nr > 0" name
3476 fun (name, _, proc_nr, _, _, _, _) ->
3477 if proc_nr <> -1 then
3478 failwithf "non-daemon function %s should have proc_nr -1" name
3479 ) non_daemon_functions;
3482 List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
3485 List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
3486 let rec loop = function
3489 | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
3491 | (name1,nr1) :: (name2,nr2) :: _ ->
3492 failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
3500 (* Ignore functions that have no tests. We generate a
3501 * warning when the user does 'make check' instead.
3503 | name, _, _, _, [], _, _ -> ()
3504 | name, _, _, _, tests, _, _ ->
3508 match seq_of_test test with
3510 failwithf "%s has a test containing an empty sequence" name
3511 | cmds -> List.map List.hd cmds
3513 let funcs = List.flatten funcs in
3515 let tested = List.mem name funcs in
3518 failwithf "function %s has tests but does not test itself" name
3521 (* 'pr' prints to the current output file. *)
3522 let chan = ref stdout
3523 let pr fs = ksprintf (output_string !chan) fs
3525 (* Generate a header block in a number of standard styles. *)
3526 type comment_style = CStyle | HashStyle | OCamlStyle | HaskellStyle
3527 type license = GPLv2 | LGPLv2
3529 let generate_header comment license =
3530 let c = match comment with
3531 | CStyle -> pr "/* "; " *"
3532 | HashStyle -> pr "# "; "#"
3533 | OCamlStyle -> pr "(* "; " *"
3534 | HaskellStyle -> pr "{- "; " " in
3535 pr "libguestfs generated file\n";
3536 pr "%s WARNING: THIS FILE IS GENERATED BY 'src/generator.ml'.\n" c;
3537 pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
3539 pr "%s Copyright (C) 2009 Red Hat Inc.\n" c;
3543 pr "%s This program is free software; you can redistribute it and/or modify\n" c;
3544 pr "%s it under the terms of the GNU General Public License as published by\n" c;
3545 pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
3546 pr "%s (at your option) any later version.\n" c;
3548 pr "%s This program is distributed in the hope that it will be useful,\n" c;
3549 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
3550 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
3551 pr "%s GNU General Public License for more details.\n" c;
3553 pr "%s You should have received a copy of the GNU General Public License along\n" c;
3554 pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
3555 pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
3558 pr "%s This library is free software; you can redistribute it and/or\n" c;
3559 pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
3560 pr "%s License as published by the Free Software Foundation; either\n" c;
3561 pr "%s version 2 of the License, or (at your option) any later version.\n" c;
3563 pr "%s This library is distributed in the hope that it will be useful,\n" c;
3564 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
3565 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
3566 pr "%s Lesser General Public License for more details.\n" c;
3568 pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
3569 pr "%s License along with this library; if not, write to the Free Software\n" c;
3570 pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
3573 | CStyle -> pr " */\n"
3575 | OCamlStyle -> pr " *)\n"
3576 | HaskellStyle -> pr "-}\n"
3580 (* Start of main code generation functions below this line. *)
3582 (* Generate the pod documentation for the C API. *)
3583 let rec generate_actions_pod () =
3585 fun (shortname, style, _, flags, _, _, longdesc) ->
3586 if not (List.mem NotInDocs flags) then (
3587 let name = "guestfs_" ^ shortname in
3588 pr "=head2 %s\n\n" name;
3590 generate_prototype ~extern:false ~handle:"handle" name style;
3592 pr "%s\n\n" longdesc;
3593 (match fst style with
3595 pr "This function returns 0 on success or -1 on error.\n\n"
3597 pr "On error this function returns -1.\n\n"
3599 pr "On error this function returns -1.\n\n"
3601 pr "This function returns a C truth value on success or -1 on error.\n\n"
3603 pr "This function returns a string, or NULL on error.
3604 The string is owned by the guest handle and must I<not> be freed.\n\n"
3606 pr "This function returns a string, or NULL on error.
3607 I<The caller must free the returned string after use>.\n\n"
3609 pr "This function returns a NULL-terminated array of strings
3610 (like L<environ(3)>), or NULL if there was an error.
3611 I<The caller must free the strings and the array after use>.\n\n"
3612 | RStruct (_, typ) ->
3613 pr "This function returns a C<struct guestfs_%s *>,
3614 or NULL if there was an error.
3615 I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
3616 | RStructList (_, typ) ->
3617 pr "This function returns a C<struct guestfs_%s_list *>
3618 (see E<lt>guestfs-structs.hE<gt>),
3619 or NULL if there was an error.
3620 I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
3622 pr "This function returns a NULL-terminated array of
3623 strings, or NULL if there was an error.
3624 The array of strings will always have length C<2n+1>, where
3625 C<n> keys and values alternate, followed by the trailing NULL entry.
3626 I<The caller must free the strings and the array after use>.\n\n"
3628 pr "This function returns a buffer, or NULL on error.
3629 The size of the returned buffer is written to C<*size_r>.
3630 I<The caller must free the returned buffer after use>.\n\n"
3632 if List.mem ProtocolLimitWarning flags then
3633 pr "%s\n\n" protocol_limit_warning;
3634 if List.mem DangerWillRobinson flags then
3635 pr "%s\n\n" danger_will_robinson
3637 ) all_functions_sorted
3639 and generate_structs_pod () =
3640 (* Structs documentation. *)
3643 pr "=head2 guestfs_%s\n" typ;
3645 pr " struct guestfs_%s {\n" typ;
3648 | name, FChar -> pr " char %s;\n" name
3649 | name, FUInt32 -> pr " uint32_t %s;\n" name
3650 | name, FInt32 -> pr " int32_t %s;\n" name
3651 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
3652 | name, FInt64 -> pr " int64_t %s;\n" name
3653 | name, FString -> pr " char *%s;\n" name
3655 pr " /* The next two fields describe a byte array. */\n";
3656 pr " uint32_t %s_len;\n" name;
3657 pr " char *%s;\n" name
3659 pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
3660 pr " char %s[32];\n" name
3661 | name, FOptPercent ->
3662 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
3663 pr " float %s;\n" name
3667 pr " struct guestfs_%s_list {\n" typ;
3668 pr " uint32_t len; /* Number of elements in list. */\n";
3669 pr " struct guestfs_%s *val; /* Elements. */\n" typ;
3672 pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
3673 pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
3678 (* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
3679 * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
3681 * We have to use an underscore instead of a dash because otherwise
3682 * rpcgen generates incorrect code.
3684 * This header is NOT exported to clients, but see also generate_structs_h.
3686 and generate_xdr () =
3687 generate_header CStyle LGPLv2;
3689 (* This has to be defined to get around a limitation in Sun's rpcgen. *)
3690 pr "typedef string str<>;\n";
3693 (* Internal structures. *)
3697 pr "struct guestfs_int_%s {\n" typ;
3699 | name, FChar -> pr " char %s;\n" name
3700 | name, FString -> pr " string %s<>;\n" name
3701 | name, FBuffer -> pr " opaque %s<>;\n" name
3702 | name, FUUID -> pr " opaque %s[32];\n" name
3703 | name, (FInt32|FUInt32) -> pr " int %s;\n" name
3704 | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
3705 | name, FOptPercent -> pr " float %s;\n" name
3709 pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;