(* This script generates a large amount of code and documentation for
* all the daemon actions.
- *
+ *
* To add a new action there are only two files you need to change,
* this one to describe the interface (see the big table of
* 'daemon_functions' below), and daemon/<somefile>.c to write the
* implementation.
- *
+ *
* After editing this file, run it (./src/generator.ml) to regenerate
* all the output files. 'make' will rerun this automatically when
* necessary. Note that if you are using a separate build directory
* you must run generator.ml from the _source_ directory.
- *
+ *
* IMPORTANT: This script should NOT print any warnings. If it prints
* warnings, you should treat them as errors.
*
#load "unix.cma";;
#load "str.cma";;
#directory "+xml-light";;
+#directory "+../pkg-lib/xml-light";; (* for GODI users *)
#load "xml-light.cma";;
open Unix
This is equivalent to the qemu parameter
C<-drive file=filename,cache=off,if=...>.
+
C<cache=off> is omitted in cases where it is not supported by
the underlying filesystem.
+C<if=...> is set at compile time by the configuration option
+C<./configure --with-drive-if=...>. In the rare case where you
+might need to change this at run time, use C<guestfs_add_drive_with_if>
+or C<guestfs_add_drive_ro_with_if>.
+
Note that this call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
This is equivalent to the qemu parameter C<-cdrom filename>.
-Note that this call checks for the existence of C<filename>. This
+Notes:
+
+=over 4
+
+=item *
+
+This call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
-the general C<guestfs_config> call instead.");
+the general C<guestfs_config> call instead.
+
+=item *
+
+If you just want to add an ISO file (often you use this as an
+efficient way to transfer large files into the guest), then you
+should probably use C<guestfs_add_drive_ro> instead.
+
+=back");
("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
[],
changes to be committed, although qemu can support this.
This is equivalent to the qemu parameter
-C<-drive file=filename,snapshot=on,if=...>.
+C<-drive file=filename,snapshot=on,readonly=on,if=...>.
+
+C<if=...> is set at compile time by the configuration option
+C<./configure --with-drive-if=...>. In the rare case where you
+might need to change this at run time, use C<guestfs_add_drive_with_if>
+or C<guestfs_add_drive_ro_with_if>.
+
+C<readonly=on> is only added where qemu supports this option.
Note that this call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
You can also override this by setting the C<LIBGUESTFS_QEMU>
environment variable.
-Setting C<qemu> to C<NULL> restores the default qemu binary.");
+Setting C<qemu> to C<NULL> restores the default qemu binary.
+
+Note that you should call this function as early as possible
+after creating the handle. This is because some pre-launch
+operations depend on testing qemu features (by running C<qemu -help>).
+If the qemu binary changes, we don't retest features, and
+so you might see inconsistent results. Using the environment
+variable C<LIBGUESTFS_QEMU> is safest of all since that picks
+the qemu binary at the same time as the handle is created.");
("get_qemu", (RConstString "qemu", []), -1, [],
[InitNone, Always, TestRun (
"\
Return the recovery process enabled flag.");
+ ("add_drive_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
+ [],
+ "add a drive specifying the QEMU block emulation to use",
+ "\
+This is the same as C<guestfs_add_drive> but it allows you
+to specify the QEMU interface emulation to use at run time.");
+
+ ("add_drive_ro_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
+ [],
+ "add a drive read-only specifying the QEMU block emulation to use",
+ "\
+This is the same as C<guestfs_add_drive_ro> but it allows you
+to specify the QEMU interface emulation to use at run time.");
+
]
(* daemon_functions are any functions which cause some action
"change file mode",
"\
Change the mode (permissions) of C<path> to C<mode>. Only
-numeric modes are supported.");
+numeric modes are supported.
+
+I<Note>: When using this command from guestfish, C<mode>
+by default would be decimal, unless you prefix it with
+C<0> to get octal, ie. use C<0700> not C<700>.
+
+The mode actually set is affected by the umask.");
("chown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 35, [],
[], (* XXX Need stat command to test *)
["lvs"]],
["/dev/VG1/LV1"; "/dev/VG1/LV2";
"/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
- "create an LVM volume group",
+ "create an LVM logical volume",
"\
-This creates an LVM volume group called C<logvol>
+This creates an LVM logical volume called C<logvol>
on the volume group C<volgroup>, with C<size> megabytes.");
("mkfs", (RErr, [String "fstype"; Device "device"]), 42, [],
[InitEmpty, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["write_file"; "/new"; "new file contents"; "0"];
["cat"; "/new"]], "new file contents")],
"make a filesystem",
[InitEmpty, Always, TestOutputListOfDevices (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["mounts"]], ["/dev/sda1"]);
InitEmpty, Always, TestOutputList (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["umount"; "/"];
["mounts"]], [])],
"unmount a filesystem",
["mkfs"; "ext2"; "/dev/sda1"];
["mkfs"; "ext2"; "/dev/sda2"];
["mkfs"; "ext2"; "/dev/sda3"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["mkdir"; "/mp1"];
- ["mount"; "/dev/sda2"; "/mp1"];
+ ["mount_options"; ""; "/dev/sda2"; "/mp1"];
["mkdir"; "/mp1/mp2"];
- ["mount"; "/dev/sda3"; "/mp1/mp2"];
+ ["mount_options"; ""; "/dev/sda3"; "/mp1/mp2"];
["mkdir"; "/mp1/mp2/mp3"];
["umount_all"];
["mounts"]], [])],
[InitNone, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext3"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["write_file"; "/new"; "test file"; "0"];
["umount"; "/dev/sda1"];
["zerofree"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["cat"; "/new"]], "test file")],
"zero unused inodes and disk blocks on ext2/3 filesystem",
"\
["vgcreate"; "VG"; "/dev/sda1"];
["lvcreate"; "LV"; "VG"; "10"];
["mkfs"; "ext2"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"];
+ ["mount_options"; ""; "/dev/VG/LV"; "/"];
["write_file"; "/new"; "test content"; "0"];
["umount"; "/"];
["lvresize"; "/dev/VG/LV"; "20"];
["e2fsck_f"; "/dev/VG/LV"];
["resize2fs"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"];
+ ["mount_options"; ""; "/dev/VG/LV"; "/"];
["cat"; "/new"]], "test content")],
"resize an LVM logical volume",
"\
The C<mode> parameter should be the mode, using the standard
constants. C<devmajor> and C<devminor> are the
device major and minor numbers, only used when creating block
-and character special devices.");
+and character special devices.
+
+Note that, just like L<mknod(2)>, the mode must be bitwise
+OR'd with S_IFBLK, S_IFCHR, S_IFIFO or S_IFSOCK (otherwise this call
+just creates a regular file). These constants are
+available in the standard Linux header files, or you can use
+C<guestfs_mknod_b>, C<guestfs_mknod_c> or C<guestfs_mkfifo>
+which are wrappers around this command which bitwise OR
+in the appropriate constant for you.
+
+The mode actually set is affected by the umask.");
("mkfifo", (RErr, [Int "mode"; Pathname "path"]), 134, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a FIFO (named pipe) called C<path> with
mode C<mode>. It is just a convenient wrapper around
-C<guestfs_mknod>.");
+C<guestfs_mknod>.
+
+The mode actually set is affected by the umask.");
("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 135, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a block device node called C<path> with
mode C<mode> and device major/minor C<devmajor> and C<devminor>.
-It is just a convenient wrapper around C<guestfs_mknod>.");
+It is just a convenient wrapper around C<guestfs_mknod>.
+
+The mode actually set is affected by the umask.");
("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 136, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a char device node called C<path> with
mode C<mode> and device major/minor C<devmajor> and C<devminor>.
-It is just a convenient wrapper around C<guestfs_mknod>.");
+It is just a convenient wrapper around C<guestfs_mknod>.
+
+The mode actually set is affected by the umask.");
("umask", (RInt "oldmask", [Int "mask"]), 137, [],
- [], (* XXX umask is one of those stateful things that we should
- * reset between each test.
- *)
+ [InitEmpty, Always, TestOutputInt (
+ [["umask"; "0o22"]], 0o22)],
"set file mode creation mask (umask)",
"\
This function sets the mask used for creating new files and
[InitEmpty, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs_b"; "ext2"; "4096"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["write_file"; "/new"; "new file contents"; "0"];
["cat"; "/new"]], "new file contents")],
"make a filesystem with block size",
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal"; "4096"; "/dev/sda1"];
["mke2fs_J"; "ext2"; "4096"; "/dev/sda2"; "/dev/sda1"];
- ["mount"; "/dev/sda2"; "/"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
["write_file"; "/new"; "new file contents"; "0"];
["cat"; "/new"]], "new file contents")],
"make ext2/3/4 external journal",
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal_L"; "4096"; "JOURNAL"; "/dev/sda1"];
["mke2fs_JL"; "ext2"; "4096"; "/dev/sda2"; "JOURNAL"];
- ["mount"; "/dev/sda2"; "/"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
["write_file"; "/new"; "new file contents"; "0"];
["cat"; "/new"]], "new file contents")],
"make ext2/3/4 external journal with label",
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal_U"; "4096"; uuid; "/dev/sda1"];
["mke2fs_JU"; "ext2"; "4096"; "/dev/sda2"; uuid];
- ["mount"; "/dev/sda2"; "/"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
["write_file"; "/new"; "new file contents"; "0"];
["cat"; "/new"]], "new file contents")]),
"make ext2/3/4 external journal with UUID",
"create a directory with a particular mode",
"\
This command creates a directory, setting the initial permissions
-of the directory to C<mode>. See also C<guestfs_mkdir>.");
+of the directory to C<mode>.
+
+For common Linux filesystems, the actual mode which is set will
+be C<mode & ~umask & 01777>. Non-native-Linux filesystems may
+interpret the mode in other ways.
+
+See also C<guestfs_mkdir>, C<guestfs_umask>");
("lchown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 203, [],
[], (* XXX *)
This sets the bootable flag on partition numbered C<partnum> on
device C<device>. Note that partitions are numbered from 1.
-The bootable flag is used by some PC BIOSes to determine which
-partition to boot from. It is by no means universally recognized,
-and in any case if your operating system installed a boot
-sector on the device itself, then that takes precedence.");
+The bootable flag is used by some operating systems (notably
+Windows) to determine which partition to boot from. It is by
+no means universally recognized.");
("part_set_name", (RErr, [Device "device"; Int "partnum"; String "name"]), 212, [],
[InitEmpty, Always, TestRun (
If the destination is a device, it must be as large or larger
than the source file or device, otherwise the copy will fail.
-This command cannot do partial copies.");
+This command cannot do partial copies (see C<guestfs_copy_size>).");
+
+ ("filesize", (RInt64 "size", [Pathname "file"]), 218, [],
+ [InitBasicFS, Always, TestOutputInt (
+ [["write_file"; "/file"; "hello, world"; "0"];
+ ["filesize"; "/file"]], 12)],
+ "return the size of the file in bytes",
+ "\
+This command returns the size of C<file> in bytes.
+
+To get other stats about a file, use C<guestfs_stat>, C<guestfs_lstat>,
+C<guestfs_is_dir>, C<guestfs_is_file> etc.
+To get the size of block devices, use C<guestfs_blockdev_getsize64>.");
+
+ ("lvrename", (RErr, [String "logvol"; String "newlogvol"]), 219, [],
+ [InitBasicFSonLVM, Always, TestOutputList (
+ [["lvrename"; "/dev/VG/LV"; "/dev/VG/LV2"];
+ ["lvs"]], ["/dev/VG/LV2"])],
+ "rename an LVM logical volume",
+ "\
+Rename a logical volume C<logvol> with the new name C<newlogvol>.");
+
+ ("vgrename", (RErr, [String "volgroup"; String "newvolgroup"]), 220, [],
+ [InitBasicFSonLVM, Always, TestOutputList (
+ [["umount"; "/"];
+ ["vg_activate"; "false"; "VG"];
+ ["vgrename"; "VG"; "VG2"];
+ ["vg_activate"; "true"; "VG2"];
+ ["mount_options"; ""; "/dev/VG2/LV"; "/"];
+ ["vgs"]], ["VG2"])],
+ "rename an LVM volume group",
+ "\
+Rename a volume group C<volgroup> with the new name C<newvolgroup>.");
+
+ ("initrd_cat", (RBufferOut "content", [Pathname "initrdpath"; String "filename"]), 221, [ProtocolLimitWarning],
+ [InitISOFS, Always, TestOutputBuffer (
+ [["initrd_cat"; "/initrd"; "known-4"]], "abc\ndef\nghi")],
+ "list the contents of a single file in an initrd",
+ "\
+This command unpacks the file C<filename> from the initrd file
+called C<initrdpath>. The filename must be given I<without> the
+initial C</> character.
+
+For example, in guestfish you could use the following command
+to examine the boot script (usually called C</init>)
+contained in a Linux initrd or initramfs image:
+
+ initrd-cat /boot/initrd-<version>.img init
+
+See also C<guestfs_initrd_list>.");
+
+ ("pvuuid", (RString "uuid", [Device "device"]), 222, [],
+ [],
+ "get the UUID of a physical volume",
+ "\
+This command returns the UUID of the LVM PV C<device>.");
+
+ ("vguuid", (RString "uuid", [String "vgname"]), 223, [],
+ [],
+ "get the UUID of a volume group",
+ "\
+This command returns the UUID of the LVM VG named C<vgname>.");
+
+ ("lvuuid", (RString "uuid", [Device "device"]), 224, [],
+ [],
+ "get the UUID of a logical volume",
+ "\
+This command returns the UUID of the LVM LV C<device>.");
+
+ ("vgpvuuids", (RStringList "uuids", [String "vgname"]), 225, [],
+ [],
+ "get the PV UUIDs containing the volume group",
+ "\
+Given a VG called C<vgname>, this returns the UUIDs of all
+the physical volumes that this volume group resides on.
+
+You can use this along with C<guestfs_pvs> and C<guestfs_pvuuid>
+calls to associate physical volumes and volume groups.
+
+See also C<guestfs_vglvuuids>.");
+
+ ("vglvuuids", (RStringList "uuids", [String "vgname"]), 226, [],
+ [],
+ "get the LV UUIDs of all LVs in the volume group",
+ "\
+Given a VG called C<vgname>, this returns the UUIDs of all
+the logical volumes created in this volume group.
+
+You can use this along with C<guestfs_lvs> and C<guestfs_lvuuid>
+calls to associate logical volumes and volume groups.
+
+See also C<guestfs_vgpvuuids>.");
+
+ ("copy_size", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"; Int64 "size"]), 227, [],
+ [InitBasicFS, Always, TestOutputBuffer (
+ [["write_file"; "/src"; "hello, world"; "0"];
+ ["copy_size"; "/src"; "/dest"; "5"];
+ ["read_file"; "/dest"]], "hello")],
+ "copy size bytes from source to destination using dd",
+ "\
+This command copies exactly C<size> bytes from one source device
+or file C<src> to another destination device or file C<dest>.
+
+Note this will fail if the source is too short or if the destination
+is not large enough.");
+
+ ("part_del", (RErr, [Device "device"; Int "partnum"]), 233, [],
+ [InitEmpty, Always, TestRun (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_del"; "/dev/sda"; "1"]])],
+ "delete a partition",
+ "\
+This command deletes the partition numbered C<partnum> on C<device>.
+
+Note that in the case of MBR partitioning, deleting an
+extended partition also deletes any logical partitions
+it contains.");
+
+ ("part_get_bootable", (RBool "bootable", [Device "device"; Int "partnum"]), 234, [],
+ [InitEmpty, Always, TestOutputTrue (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_set_bootable"; "/dev/sda"; "1"; "true"];
+ ["part_get_bootable"; "/dev/sda"; "1"]])],
+ "return true if a partition is bootable",
+ "\
+This command returns true if the partition C<partnum> on
+C<device> has the bootable flag set.
+
+See also C<guestfs_part_set_bootable>.");
+
+ ("part_get_mbr_id", (RInt "idbyte", [Device "device"; Int "partnum"]), 235, [],
+ [InitEmpty, Always, TestOutputInt (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_set_mbr_id"; "/dev/sda"; "1"; "0x7f"];
+ ["part_get_mbr_id"; "/dev/sda"; "1"]], 0x7f)],
+ "get the MBR type byte (ID byte) from a partition",
+ "\
+Returns the MBR type byte (also known as the ID byte) from
+the numbered partition C<partnum>.
+
+Note that only MBR (old DOS-style) partitions have type bytes.
+You will get undefined results for other partition table
+types (see C<guestfs_part_get_parttype>).");
+
+ ("part_set_mbr_id", (RErr, [Device "device"; Int "partnum"; Int "idbyte"]), 236, [],
+ [], (* tested by part_get_mbr_id *)
+ "set the MBR type byte (ID byte) of a partition",
+ "\
+Sets the MBR type byte (also known as the ID byte) of
+the numbered partition C<partnum> to C<idbyte>. Note
+that the type bytes quoted in most documentation are
+in fact hexadecimal numbers, but usually documented
+without any leading \"0x\" which might be confusing.
+
+Note that only MBR (old DOS-style) partitions have type bytes.
+You will get undefined results for other partition table
+types (see C<guestfs_part_get_parttype>).");
]
(* Handling for function flags. *)
let protocol_limit_warning =
"Because of the message protocol, there is a transfer limit
-of somewhere between 2MB and 4MB. To transfer large files you should use
-FTP."
+of somewhere between 2MB and 4MB. See L<guestfs(3)/PROTOCOL LIMITS>."
let danger_will_robinson =
"B<This command is dangerous. Without careful use you
"for"; "forall"; "foreign"; "fun"; "function"; "functor"; "goto";
"hiding"; "if"; "import"; "in"; "include"; "infix"; "infixl";
"infixr"; "inherit"; "initializer"; "inline"; "instance"; "int";
+ "interface";
"land"; "lazy"; "let"; "long"; "lor"; "lsl"; "lsr"; "lxor";
"match"; "mdo"; "method"; "mod"; "module"; "mutable"; "new";
"newtype"; "object"; "of"; "open"; "or"; "private"; "qualified";
failwithf "short description of %s should not end with . or \\n." name
) all_functions;
- (* Check long dscriptions. *)
+ (* Check long descriptions. *)
List.iter (
fun (name, _, _, _, _, _, longdesc) ->
if longdesc.[String.length longdesc-1] = '\n' then
let name = "guestfs_" ^ shortname in
pr "=head2 %s\n\n" name;
pr " ";
- generate_prototype ~extern:false ~handle:"handle" name style;
+ generate_prototype ~extern:false ~handle:"g" name style;
pr "\n\n";
pr "%s\n\n" longdesc;
(match fst style with
(* Having to choose a maximum message size is annoying for several
* reasons (it limits what we can do in the API), but it (a) makes
* the protocol a lot simpler, and (b) provides a bound on the size
- * of the daemon which operates in limited memory space. For large
- * file transfers you should use FTP.
+ * of the daemon which operates in limited memory space.
*)
pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
pr "\n";
List.iter (
fun (shortname, style, _, _, _, _, _) ->
let name = "guestfs_" ^ shortname in
- generate_prototype ~single_line:true ~newline:true ~handle:"handle"
+ generate_prototype ~single_line:true ~newline:true ~handle:"g"
name style
) all_functions
List.iter (
fun (shortname, style, _, _, _, _, _) ->
let name = "guestfs__" ^ shortname in
- generate_prototype ~single_line:true ~newline:true ~handle:"handle"
+ generate_prototype ~single_line:true ~newline:true ~handle:"g"
name style
) non_daemon_functions
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
+#include <string.h>
#include <inttypes.h>
#include \"guestfs.h\"
name style;
) daemon_functions
+(* Generate the linker script which controls the visibility of
+ * symbols in the public ABI and ensures no other symbols get
+ * exported accidentally.
+ *)
+and generate_linker_script () =
+ generate_header HashStyle GPLv2plus;
+
+ let globals = [
+ "guestfs_create";
+ "guestfs_close";
+ "guestfs_get_error_handler";
+ "guestfs_get_out_of_memory_handler";
+ "guestfs_last_error";
+ "guestfs_set_error_handler";
+ "guestfs_set_launch_done_callback";
+ "guestfs_set_log_message_callback";
+ "guestfs_set_out_of_memory_handler";
+ "guestfs_set_subprocess_quit_callback";
+
+ (* Unofficial parts of the API: the bindings code use these
+ * functions, so it is useful to export them.
+ *)
+ "guestfs_safe_calloc";
+ "guestfs_safe_malloc";
+ ] in
+ let functions =
+ List.map (fun (name, _, _, _, _, _, _) -> "guestfs_" ^ name)
+ all_functions in
+ let structs =
+ List.concat (
+ List.map (fun (typ, _) ->
+ ["guestfs_free_" ^ typ; "guestfs_free_" ^ typ ^ "_list"])
+ structs
+ ) in
+ let globals = List.sort compare (globals @ functions @ structs) in
+
+ pr "{\n";
+ pr " global:\n";
+ List.iter (pr " %s;\n") globals;
+ pr "\n";
+
+ pr " local:\n";
+ pr " *;\n";
+ pr "};\n"
+
(* Generate the server-side stubs. *)
and generate_daemon_actions () =
generate_header CStyle GPLv2plus;
pr " memset (&args, 0, sizeof args);\n";
pr "\n";
pr " if (!xdr_guestfs_%s_args (xdr_in, &args)) {\n" name;
- pr " reply_with_error (\"%%s: daemon failed to decode procedure arguments\", \"%s\");\n" name;
+ pr " reply_with_error (\"daemon failed to decode procedure arguments\");\n";
pr " return;\n";
pr " }\n";
let pr_args n =
pr " ret->guestfs_int_lvm_%s_list_val = NULL;\n" typ;
pr "\n";
pr " r = command (&out, &err,\n";
- pr " \"/sbin/lvm\", \"%ss\",\n" typ;
+ pr " \"lvm\", \"%ss\",\n" typ;
pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ;
pr " \"--nosuffix\", \"--separator\", \",\", \"--units\", \"b\", NULL);\n";
pr " if (r == -1) {\n";
exit (EXIT_FAILURE);
}
+ /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
+ alarm (600);
+
if (guestfs_launch (g) == -1) {
printf (\"guestfs_launch FAILED\\n\");
exit (EXIT_FAILURE);
}
- /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
- alarm (600);
-
/* Cancel previous alarm. */
alarm (0);
["lvm_remove_all"];
["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"]]
+ ["mount_options"; ""; "/dev/sda1"; "/"]]
| InitBasicFSonLVM ->
pr " /* InitBasicFSonLVM for %s: create ext2 on /dev/VG/LV */\n"
test_name;
["vgcreate"; "VG"; "/dev/sda1"];
["lvcreate"; "LV"; "VG"; "8"];
["mkfs"; "ext2"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"]]
+ ["mount_options"; ""; "/dev/VG/LV"; "/"]]
| InitISOFS ->
pr " /* InitISOFS for %s */\n" test_name;
List.iter (generate_test_command_call test_name)
| Bool _, _
| FileIn _, _ | FileOut _, _ -> ()
| StringList n, "" | DeviceList n, "" ->
- pr " const char *const %s[1] = { NULL };\n" n
+ pr " const char *const %s[1] = { NULL };\n" n
| StringList n, arg | DeviceList n, arg ->
let strs = string_split " " arg in
iteri (
fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
) all_functions_sorted in
+ pr "#include <config.h>\n";
+ pr "\n";
pr "#include <stdio.h>\n";
pr "#include <stdlib.h>\n";
pr "#include <string.h>\n";
pr "\n";
pr "#include <guestfs.h>\n";
pr "#include \"c-ctype.h\"\n";
+ pr "#include \"full-write.h\"\n";
+ pr "#include \"xstrtol.h\"\n";
pr "#include \"fish.h\"\n";
pr "\n";
pr " fprintf (stderr, _(\"type 'help %%s' for help on %%s\\n\"), cmd, cmd);\n";
pr " return -1;\n";
pr " }\n";
+
+ let parse_integer fn fntyp rtyp range name i =
+ pr " {\n";
+ pr " strtol_error xerr;\n";
+ pr " %s r;\n" fntyp;
+ pr "\n";
+ pr " xerr = %s (argv[%d], NULL, 0, &r, \"\");\n" fn i;
+ pr " if (xerr != LONGINT_OK) {\n";
+ pr " fprintf (stderr,\n";
+ pr " _(\"%%s: %%s: invalid integer parameter (%%s returned %%d)\\n\"),\n";
+ pr " cmd, \"%s\", \"%s\", xerr);\n" name fn;
+ pr " return -1;\n";
+ pr " }\n";
+ (match range with
+ | None -> ()
+ | Some (min, max, comment) ->
+ pr " /* %s */\n" comment;
+ pr " if (r < %s || r > %s) {\n" min max;
+ pr " fprintf (stderr, _(\"%%s: %%s: integer out of range\\n\"), cmd, \"%s\");\n"
+ name;
+ pr " return -1;\n";
+ pr " }\n";
+ pr " /* The check above should ensure this assignment does not overflow. */\n";
+ );
+ pr " %s = r;\n" name;
+ pr " }\n";
+ in
+
iteri (
fun i ->
function
| Bool name ->
pr " %s = is_true (argv[%d]) ? 1 : 0;\n" name i
| Int name ->
- pr " %s = atoi (argv[%d]);\n" name i
+ let range =
+ let min = "(-(2LL<<30))"
+ and max = "((2LL<<30)-1)"
+ and comment =
+ "The Int type in the generator is a signed 31 bit int." in
+ Some (min, max, comment) in
+ parse_integer "xstrtoll" "long long" "int" range name i
| Int64 name ->
- pr " %s = atoll (argv[%d]);\n" name i
+ parse_integer "xstrtoll" "long long" "int64_t" None name i
) (snd style);
(* Call C API function. *)
pr " return 0;\n"
| RBufferOut _ ->
pr " if (r == NULL) return -1;\n";
- pr " fwrite (r, size, 1, stdout);\n";
+ pr " if (full_write (1, r, size) != size) {\n";
+ pr " perror (\"write\");\n";
+ pr " free (r);\n";
+ pr " return -1;\n";
+ pr " }\n";
pr " free (r);\n";
pr " return 0;\n"
);
) all_functions;
pr " {\n";
pr " fprintf (stderr, _(\"%%s: unknown command\\n\"), cmd);\n";
+ pr " if (command_num == 1)\n";
+ pr " extended_help_message ();\n";
pr " return -1;\n";
pr " }\n";
pr " return 0;\n";
#endif /* HAVE_LIBREADLINE */
-char **do_completion (const char *text, int start, int end)
+#ifdef HAVE_RL_COMPLETION_MATCHES
+#define RL_COMPLETION_MATCHES rl_completion_matches
+#else
+#ifdef HAVE_COMPLETION_MATCHES
+#define RL_COMPLETION_MATCHES completion_matches
+#endif
+#endif /* else just fail if we don't have either symbol */
+
+char **
+do_completion (const char *text, int start, int end)
{
char **matches = NULL;
rl_completion_append_character = ' ';
if (start == 0)
- matches = rl_completion_matches (text, generator);
+ matches = RL_COMPLETION_MATCHES (text, generator);
else if (complete_dest_paths)
- matches = rl_completion_matches (text, complete_dest_paths_generator);
+ matches = RL_COMPLETION_MATCHES (text, complete_dest_paths_generator);
#endif
return matches;
pr ";\n";
do_cleanups ();
pr " if (r == -1)\n";
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
| RInt n
| RBool n ->
pr "PREINIT:\n";
pr ";\n";
do_cleanups ();
pr " if (%s == -1)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSViv (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == -1)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = my_newSVll (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " free (%s);\n" n;
pr " OUTPUT:\n";
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
pr " EXTEND (SP, n);\n";
pr " for (i = 0; i < n; ++i) {\n";
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " RETVAL = newSVpv (%s, size);\n" n;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
+ pr " RETVAL = newSVpvn (%s, size);\n" n;
pr " free (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " EXTEND (SP, %s->len);\n" n;
pr " for (i = 0; i < %s->len; ++i) {\n" n;
pr " hv = newHV ();\n";
pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
name (String.length name) n name
| name, FBuffer ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
+ pr " (void) hv_store (hv, \"%s\", %d, newSVpvn (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
name (String.length name) n name n name
| name, (FBytes|FUInt64) ->
pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
List.iter (
fun ((name, _) as col) ->
pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
n name
| name, FBuffer ->
- pr " PUSHs (sv_2mortal (newSVpv (%s->%s, %s->%s_len)));\n"
+ pr " PUSHs (sv_2mortal (newSVpvn (%s->%s, %s->%s_len)));\n"
n name n name
| name, FUUID ->
pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
Libguestfs provides ways to enumerate guest storage (eg. partitions,
LVs, what filesystem is in each LV, etc.). It can also run commands
-in the context of the guest. Also you can access filesystems over FTP.
+in the context of the guest. Also you can access filesystems over
+FUSE.
See also L<Sys::Guestfs::Lib(3)> for a set of useful library
functions for using libguestfs from Perl, including integration
Libguestfs provides ways to enumerate guest storage (eg. partitions,
LVs, what filesystem is in each LV, etc.). It can also run commands
-in the context of the guest. Also you can access filesystems over FTP.
+in the context of the guest. Also you can access filesystems over
+FUSE.
Errors which happen while using the API are turned into Python
RuntimeError exceptions.
List.iter (
fun (name, style, _, _, _, shortdesc, _) ->
let rec csharp_return_type () =
- match fst style with
- | RErr -> "void"
- | RBool n -> "bool"
- | RInt n -> "int"
- | RInt64 n -> "long"
- | RConstString n
- | RConstOptString n
- | RString n
- | RBufferOut n -> "string"
- | RStruct (_,n) -> "_" ^ n
- | RHashtable n -> "Hashtable"
- | RStringList n -> "string[]"
- | RStructList (_,n) -> sprintf "_%s[]" n
+ match fst style with
+ | RErr -> "void"
+ | RBool n -> "bool"
+ | RInt n -> "int"
+ | RInt64 n -> "long"
+ | RConstString n
+ | RConstOptString n
+ | RString n
+ | RBufferOut n -> "string"
+ | RStruct (_,n) -> "_" ^ n
+ | RHashtable n -> "Hashtable"
+ | RStringList n -> "string[]"
+ | RStructList (_,n) -> sprintf "_%s[]" n
and c_return_type () =
- match fst style with
- | RErr
- | RBool _
- | RInt _ -> "int"
- | RInt64 _ -> "long"
- | RConstString _
- | RConstOptString _
- | RString _
- | RBufferOut _ -> "string"
- | RStruct (_,n) -> "_" ^ n
- | RHashtable _
- | RStringList _ -> "string[]"
- | RStructList (_,n) -> sprintf "_%s[]" n
-
+ match fst style with
+ | RErr
+ | RBool _
+ | RInt _ -> "int"
+ | RInt64 _ -> "long"
+ | RConstString _
+ | RConstOptString _
+ | RString _
+ | RBufferOut _ -> "string"
+ | RStruct (_,n) -> "_" ^ n
+ | RHashtable _
+ | RStringList _ -> "string[]"
+ | RStructList (_,n) -> sprintf "_%s[]" n
+
and c_error_comparison () =
- match fst style with
- | RErr
- | RBool _
- | RInt _
- | RInt64 _ -> "== -1"
- | RConstString _
- | RConstOptString _
- | RString _
- | RBufferOut _
- | RStruct (_,_)
- | RHashtable _
- | RStringList _
- | RStructList (_,_) -> "== null"
-
+ match fst style with
+ | RErr
+ | RBool _
+ | RInt _
+ | RInt64 _ -> "== -1"
+ | RConstString _
+ | RConstOptString _
+ | RString _
+ | RBufferOut _
+ | RStruct (_,_)
+ | RHashtable _
+ | RStringList _
+ | RStructList (_,_) -> "== null"
+
and generate_extern_prototype () =
- pr " static extern %s guestfs_%s (IntPtr h"
- (c_return_type ()) name;
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n | OptString n
- | FileIn n | FileOut n ->
+ pr " static extern %s guestfs_%s (IntPtr h"
+ (c_return_type ()) name;
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | FileIn n | FileOut n ->
pr ", [In] string %s" n
- | StringList n | DeviceList n ->
+ | StringList n | DeviceList n ->
pr ", [In] string[] %s" n
- | Bool n ->
- pr ", bool %s" n
- | Int n ->
- pr ", int %s" n
- | Int64 n ->
- pr ", long %s" n
- ) (snd style);
- pr ");\n"
+ | Bool n ->
+ pr ", bool %s" n
+ | Int n ->
+ pr ", int %s" n
+ | Int64 n ->
+ pr ", long %s" n
+ ) (snd style);
+ pr ");\n"
and generate_public_prototype () =
- pr " public %s %s (" (csharp_return_type ()) name;
- let comma = ref false in
- let next () =
- if !comma then pr ", ";
- comma := true
- in
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n | OptString n
- | FileIn n | FileOut n ->
+ pr " public %s %s (" (csharp_return_type ()) name;
+ let comma = ref false in
+ let next () =
+ if !comma then pr ", ";
+ comma := true
+ in
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | FileIn n | FileOut n ->
next (); pr "string %s" n
- | StringList n | DeviceList n ->
+ | StringList n | DeviceList n ->
next (); pr "string[] %s" n
- | Bool n ->
- next (); pr "bool %s" n
- | Int n ->
- next (); pr "int %s" n
- | Int64 n ->
- next (); pr "long %s" n
- ) (snd style);
- pr ")\n"
+ | Bool n ->
+ next (); pr "bool %s" n
+ | Int n ->
+ next (); pr "int %s" n
+ | Int64 n ->
+ next (); pr "long %s" n
+ ) (snd style);
+ pr ")\n"
and generate_call () =
- pr "guestfs_%s (_handle" name;
- List.iter (fun arg -> pr ", %s" (name_of_argt arg)) (snd style);
- pr ");\n";
+ pr "guestfs_%s (_handle" name;
+ List.iter (fun arg -> pr ", %s" (name_of_argt arg)) (snd style);
+ pr ");\n";
in
pr " [DllImport (\"%s\")]\n" library;
pr " r = ";
generate_call ();
pr " if (r %s)\n" (c_error_comparison ());
- pr " throw new Error (\"%s: \" + guestfs_last_error (_handle));\n"
- name;
+ pr " throw new Error (guestfs_last_error (_handle));\n";
(match fst style with
| RErr -> ()
| RBool _ ->
output_to "src/guestfs-actions.pod" generate_actions_pod;
output_to "src/guestfs-availability.pod" generate_availability_pod;
output_to "src/MAX_PROC_NR" generate_max_proc_nr;
+ output_to "src/libguestfs.syms" generate_linker_script;
output_to "daemon/actions.h" generate_daemon_actions_h;
output_to "daemon/stubs.c" generate_daemon_actions;
output_to "daemon/names.c" generate_daemon_names;