(* As for 'If' but the test runs _unless_ the code returns true. *)
| Unless of string
+ (* Run the test only if 'string' is available in the daemon. *)
+ | IfAvailable of string
+
(* Some initial scenarios for testing. *)
and test_init =
(* Do nothing, block devices could contain random stuff including
This call was added in version C<1.0.58>. In previous
versions of libguestfs there was no way to get the version
-number. From C code you can use ELF weak linking tricks to find out if
-this symbol exists (if it doesn't, then it's an earlier version).
+number. From C code you can use dynamic linker functions
+to find out if this symbol exists (if it doesn't, then
+it's an earlier version).
The call returns a structure with four elements. The first
three (C<major>, C<minor> and C<release>) are numbers and
To construct the original version string:
C<$major.$minor.$release$extra>
+See also: L<guestfs(3)/LIBGUESTFS VERSION NUMBERS>.
+
I<Note:> Don't use this call to test for availability
-of features. Distro backports makes this unreliable. Use
-C<guestfs_available> instead.");
+of features. In enterprise distributions we backport
+features from later versions into earlier versions,
+making this an unreliable way to test for features.
+Use C<guestfs_available> instead.");
("set_selinux", (RErr, [Bool "selinux"]), -1, [FishAlias "selinux"],
[InitNone, Always, TestOutputTrue (
C<guestfs_part_init>");
("write_file", (RErr, [Pathname "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning; DeprecatedBy "write"],
- [],
+ (* Regression test for RHBZ#597135. *)
+ [InitBasicFS, Always, TestLastFail
+ [["write_file"; "/new"; "abc"; "10000"]]],
"create a file",
"\
This call creates a file called C<path>. The contents of the
You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
to return the existing label on a filesystem.");
- ("get_e2label", (RString "label", [Device "device"]), 81, [],
+ ("get_e2label", (RString "label", [Device "device"]), 81, [DeprecatedBy "vfs_label"],
[],
"get the ext2/3/4 filesystem label",
"\
You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
to return the existing UUID of a filesystem.");
- ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [],
- [],
+ ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [DeprecatedBy "vfs_uuid"],
+ (* Regression test for RHBZ#597112. *)
+ (let uuid = uuidgen () in
+ [InitBasicFS, Always, TestOutput (
+ [["mke2journal"; "1024"; "/dev/sdb"];
+ ["set_e2uuid"; "/dev/sdb"; uuid];
+ ["get_e2uuid"; "/dev/sdb"]], uuid)]),
"get the ext2/3/4 filesystem UUID",
"\
This returns the ext2/3/4 filesystem UUID of the filesystem on
See also: C<guestfs_zero_device>, C<guestfs_scrub_device>.");
("grub_install", (RErr, [Pathname "root"; Device "device"]), 86, [],
- (* Test disabled because grub-install incompatible with virtio-blk driver.
- * See also: https://bugzilla.redhat.com/show_bug.cgi?id=479760
+ (* See:
+ * https://bugzilla.redhat.com/show_bug.cgi?id=484986
+ * https://bugzilla.redhat.com/show_bug.cgi?id=479760
*)
- [InitBasicFS, Disabled, TestOutputTrue (
- [["grub_install"; "/"; "/dev/sda1"];
+ [InitBasicFS, Always, TestOutputTrue (
+ [["mkdir_p"; "/boot/grub"];
+ ["write"; "/boot/grub/device.map"; "(hd0) /dev/vda"];
+ ["grub_install"; "/"; "/dev/vda"];
["is_dir"; "/boot"]])],
"install GRUB",
"\
This command installs GRUB (the Grand Unified Bootloader) on
-C<device>, with the root directory being C<root>.");
+C<device>, with the root directory being C<root>.
+
+Note: If grub-install reports the error
+\"No suitable drive was found in the generated device map.\"
+it may be that you need to create a C</boot/grub/device.map>
+file first that contains the mapping between grub device names
+and Linux device names. It is usually sufficient to create
+a file containing:
+
+ (hd0) /dev/vda
+
+replacing C</dev/vda> with the name of the installation device.");
("cp", (RErr, [Pathname "src"; Pathname "dest"]), 87, [],
[InitBasicFS, Always, TestOutput (
("resize2fs", (RErr, [Device "device"]), 106, [],
[], (* lvresize tests this *)
- "resize an ext2/ext3 filesystem",
+ "resize an ext2, ext3 or ext4 filesystem",
"\
-This resizes an ext2 or ext3 filesystem to match the size of
+This resizes an ext2, ext3 or ext4 filesystem to match the size of
the underlying device.
I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
=item '?'
-The L<readdir(3)> returned a C<d_type> field with an
+The L<readdir(3)> call returned a C<d_type> field with an
unexpected value
=back
"\
This command reads the target of a symbolic link.");
- ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [],
+ ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [DeprecatedBy "fallocate64"],
[InitBasicFS, Always, TestOutputStruct (
[["fallocate"; "/a"; "1000000"];
["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
["mkfs_b"; "ext2"; "4096"; "/dev/sda1"];
["mount_options"; ""; "/dev/sda1"; "/"];
["write"; "/new"; "new file contents"];
- ["cat"; "/new"]], "new file contents")],
+ ["cat"; "/new"]], "new file contents");
+ InitEmpty, Always, TestRun (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "32768"; "/dev/sda1"]]);
+ InitEmpty, Always, TestLastFail (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "32769"; "/dev/sda1"]]);
+ InitEmpty, Always, TestLastFail (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "33280"; "/dev/sda1"]]);
+ InitEmpty, IfAvailable "ntfsprogs", TestRun (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "ntfs"; "32768"; "/dev/sda1"]])],
"make a filesystem with block size",
"\
This call is similar to C<guestfs_mkfs>, but it allows you to
control the block size of the resulting filesystem. Supported
block sizes depend on the filesystem type, but typically they
-are C<1024>, C<2048> or C<4096> only.");
+are C<1024>, C<2048> or C<4096> only.
+
+For VFAT and NTFS the C<blocksize> parameter is treated as
+the requested cluster size.");
("mke2journal", (RErr, [Int "blocksize"; Device "device"]), 188, [],
[InitEmpty, Always, TestOutput (
)],
"echo arguments back to the client",
"\
-This command concatenate the list of C<words> passed with single spaces between
-them and returns the resulting string.
+This command concatenates the list of C<words> passed with single spaces
+between them and returns the resulting string.
You can use this command to test the connection through to the daemon.
[["vfs_type"; "/dev/sda1"]], "ext2")],
"get the Linux VFS type corresponding to a mounted device",
"\
-This command gets the block device type corresponding to
-a mounted device called C<device>.
+This command gets the filesystem type corresponding to
+the filesystem on C<device>.
-Usually the result is the name of the Linux VFS module that
-is used to mount this device (probably determined automatically
-if you used the C<guestfs_mount> call).");
+For most filesystems, the result is the name of the Linux
+VFS module which would be used to mount this filesystem
+if you mounted it without specifying the filesystem type.
+For example a string such as C<ext3> or C<ntfs>.");
("truncate", (RErr, [Pathname "path"]), 199, [],
[InitBasicFS, Always, TestOutputStruct (
"truncate a file to a particular size",
"\
This command truncates C<path> to size C<size> bytes. The file
-must exist already. If the file is smaller than C<size> then
-the file is extended to the required size with null bytes.");
+must exist already.
+
+If the current file size is less than C<size> then
+the file is extended to the required size with zero bytes.
+This creates a sparse file (ie. disk blocks are not allocated
+for the file until you write to it). To create a non-sparse
+file of zeroes, use C<guestfs_fallocate64> instead.");
("utimens", (RErr, [Pathname "path"; Int64 "atsecs"; Int64 "atnsecs"; Int64 "mtsecs"; Int64 "mtnsecs"]), 201, [],
[InitBasicFS, Always, TestOutputStruct (
On return you get a list of strings, with a one-to-one
correspondence to the C<names> list. Each string is the
-value of the symbol link.
+value of the symbolic link.
If the C<readlink(2)> operation fails on any name, then
the corresponding result string is the empty string C<\"\">.
The libguestfs groups, and the functions that those
groups correspond to, are listed in L<guestfs(3)/AVAILABILITY>.
+You can also fetch this list at runtime by calling
+C<guestfs_available_all_groups>.
The argument C<groups> is a list of group names, eg:
C<[\"inotify\", \"augeas\"]> would check for the availability of
See also C<guestfs_pread>.");
+ ("resize2fs_size", (RErr, [Device "device"; Int64 "size"]), 248, [],
+ [],
+ "resize an ext2, ext3 or ext4 filesystem (with size)",
+ "\
+This command is the same as C<guestfs_resize2fs> except that it
+allows you to specify the new size (in bytes) explicitly.");
+
+ ("pvresize_size", (RErr, [Device "device"; Int64 "size"]), 249, [Optional "lvm2"],
+ [],
+ "resize an LVM physical volume (with size)",
+ "\
+This command is the same as C<guestfs_pvresize> except that it
+allows you to specify the new size (in bytes) explicitly.");
+
+ ("ntfsresize_size", (RErr, [Device "device"; Int64 "size"]), 250, [Optional "ntfsprogs"],
+ [],
+ "resize an NTFS filesystem (with size)",
+ "\
+This command is the same as C<guestfs_ntfsresize> except that it
+allows you to specify the new size (in bytes) explicitly.");
+
+ ("available_all_groups", (RStringList "groups", []), 251, [],
+ [InitNone, Always, TestRun [["available_all_groups"]]],
+ "return a list of all optional groups",
+ "\
+This command returns a list of all optional groups that this
+daemon knows about. Note this returns both supported and unsupported
+groups. To find out which ones the daemon can actually support
+you have to call C<guestfs_available> on each member of the
+returned list.
+
+See also C<guestfs_available> and L<guestfs(3)/AVAILABILITY>.");
+
+ ("fallocate64", (RErr, [Pathname "path"; Int64 "len"]), 252, [],
+ [InitBasicFS, Always, TestOutputStruct (
+ [["fallocate64"; "/a"; "1000000"];
+ ["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
+ "preallocate a file in the guest filesystem",
+ "\
+This command preallocates a file (containing zero bytes) named
+C<path> of size C<len> bytes. If the file exists already, it
+is overwritten.
+
+Note that this call allocates disk blocks for the file.
+To create a sparse file use C<guestfs_truncate_size> instead.
+
+The deprecated call C<guestfs_fallocate> does the same,
+but owing to an oversight it only allowed 30 bit lengths
+to be specified, effectively limiting the maximum size
+of files created through that call to 1GB.
+
+Do not confuse this with the guestfish-specific
+C<alloc> and C<sparse> commands which create
+a file in the host and attach it as a device.");
+
+ ("vfs_label", (RString "label", [Device "device"]), 253, [],
+ [InitBasicFS, Always, TestOutput (
+ [["set_e2label"; "/dev/sda1"; "LTEST"];
+ ["vfs_label"; "/dev/sda1"]], "LTEST")],
+ "get the filesystem label",
+ "\
+This returns the filesystem label of the filesystem on
+C<device>.
+
+If the filesystem is unlabeled, this returns the empty string.");
+
+ ("vfs_uuid", (RString "uuid", [Device "device"]), 254, [],
+ (let uuid = uuidgen () in
+ [InitBasicFS, Always, TestOutput (
+ [["set_e2uuid"; "/dev/sda1"; uuid];
+ ["vfs_uuid"; "/dev/sda1"]], uuid)]),
+ "get the filesystem UUID",
+ "\
+This returns the filesystem UUID of the filesystem on
+C<device>.
+
+If the filesystem does not have a UUID, this returns the empty string.");
+
]
let all_functions = non_daemon_functions @ daemon_functions
}
*/
+static int
+is_available (const char *group)
+{
+ const char *groups[] = { group, NULL };
+ int r;
+
+ suppress_error = 1;
+ r = guestfs_available (g, (char **) groups);
+ suppress_error = 0;
+
+ return r == 0;
+}
+
";
(* Generate a list of commands which are not tested anywhere. *)
fun (_, _, _, _, tests, _, _) ->
let tests = filter_map (
function
- | (_, (Always|If _|Unless _), test) -> Some test
+ | (_, (Always|If _|Unless _|IfAvailable _), test) -> Some test
| (_, Disabled, _) -> None
) tests in
let seq = List.concat (List.map seq_of_test tests) in
" test_name name (String.uppercase test_name) (String.uppercase name);
(match prereq with
- | Disabled | Always -> ()
+ | Disabled | Always | IfAvailable _ -> ()
| If code | Unless code ->
pr "static int %s_prereq (void)\n" test_name;
pr "{\n";
List.iter (
function
| Optional group ->
- pr " {\n";
- pr " const char *groups[] = { \"%s\", NULL };\n" group;
- pr " int r;\n";
- pr " suppress_error = 1;\n";
- pr " r = guestfs_available (g, (char **) groups);\n";
- pr " suppress_error = 0;\n";
- pr " if (r == -1) {\n";
- pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", groups[0]);\n" test_name;
- pr " return 0;\n";
- pr " }\n";
+ pr " if (!is_available (\"%s\")) {\n" group;
+ pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", \"%s\");\n" test_name group;
+ pr " return 0;\n";
pr " }\n";
| _ -> ()
) flags;
pr " }\n";
pr "\n";
generate_one_test_body name i test_name init test;
+ | IfAvailable group ->
+ pr " if (!is_available (\"%s\")) {\n" group;
+ pr " printf (\" %%s skipped (reason: %%s not available)\\n\", \"%s\", \"%s\");\n" test_name group;
+ pr " return 0;\n";
+ pr " }\n";
+ pr "\n";
+ generate_one_test_body name i test_name init test;
| Always ->
generate_one_test_body name i test_name init test
);
pr "\n";
(* display_command function, which implements guestfish -h cmd *)
- pr "void display_command (const char *cmd)\n";
+ pr "int display_command (const char *cmd)\n";
pr "{\n";
List.iter (
fun (name, style, _, flags, _, shortdesc, longdesc) ->
pr " || STRCASEEQ (cmd, \"%s\")" name2;
if name <> alias then
pr " || STRCASEEQ (cmd, \"%s\")" alias;
- pr ")\n";
+ pr ") {\n";
pr " pod2text (\"%s\", _(\"%s\"), %S);\n"
name2 shortdesc
("=head1 SYNOPSIS\n\n " ^ synopsis ^ "\n\n" ^
"=head1 DESCRIPTION\n\n" ^
longdesc ^ warnings ^ describe_alias);
+ pr " return 0;\n";
+ pr " }\n";
pr " else\n"
) all_functions;
- pr " display_builtin_command (cmd);\n";
+ pr " return display_builtin_command (cmd);\n";
pr "}\n";
pr "\n";
#define PY_SSIZE_T_CLEAN 1
#include <Python.h>
+#if PY_VERSION_HEX < 0x02050000
+typedef int Py_ssize_t;
+#define PY_SSIZE_T_MAX INT_MAX
+#define PY_SSIZE_T_MIN INT_MIN
+#endif
+
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
| FileIn n
| FileOut n -> pr " printf (\"%%s\\n\", %s);\n" n
| BufferIn n ->
- pr " for (size_t i = 0; i < %s_size; ++i)\n" n;
- pr " printf (\"<%%02x>\", %s[i]);\n" n;
- pr " printf (\"\\n\");\n"
+ pr " {\n";
+ pr " size_t i;\n";
+ pr " for (i = 0; i < %s_size; ++i)\n" n;
+ pr " printf (\"<%%02x>\", %s[i]);\n" n;
+ pr " printf (\"\\n\");\n";
+ pr " }\n";
| OptString n -> pr " printf (\"%%s\\n\", %s ? %s : \"null\");\n" n n
| StringList n | DeviceList n -> pr " print_strings (%s);\n" n
| Bool n -> pr " printf (\"%%s\\n\", %s ? \"true\" : \"false\");\n" n
git.annexia.org / libguestfs.git / blobdiff