* You can also override this by setting the
* "LIBGUESTFS_QEMU" environment variable.
*
- * The string "qemu" is stashed in the libguestfs handle,
- * so the caller must make sure it remains valid for the
- * lifetime of the handle.
- *
* Setting "qemu" to "NULL" restores the default qemu
* binary.
*
* The default is "$libdir/guestfs" unless overridden by
* setting "LIBGUESTFS_PATH" environment variable.
*
- * The string "path" is stashed in the libguestfs handle,
- * so the caller must make sure it remains valid for the
- * lifetime of the handle.
- *
* Setting "path" to "NULL" restores the default path.
*
* @throws LibGuestFSException
throws LibGuestFSException;
/**
+ * add options to kernel command line
+ *
+ * This function is used to add additional options to the
+ * guest kernel command line.
+ *
+ * The default is "NULL" unless overridden by setting
+ * "LIBGUESTFS_APPEND" environment variable.
+ *
+ * Setting "append" to "NULL" means *no* additional options
+ * are passed (libguestfs always adds a few of its own).
+ *
+ * @throws LibGuestFSException
+ */
+ public void set_append (String append)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("set_append: handle is closed");
+ _set_append (g, append);
+ }
+ private native void _set_append (long g, String append)
+ throws LibGuestFSException;
+
+ /**
+ * get the additional kernel options
+ *
+ * Return the additional kernel options which are added to
+ * the guest kernel command line.
+ *
+ * If "NULL" then no options are added.
+ *
+ * @throws LibGuestFSException
+ */
+ public String get_append ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("get_append: handle is closed");
+ return _get_append (g);
+ }
+ private native String _get_append (long g)
+ throws LibGuestFSException;
+
+ /**
* set autosync mode
*
* If "autosync" is true, this enables autosync. Libguestfs
throws LibGuestFSException;
/**
+ * leave the busy state
+ *
+ * This sets the state to "READY", or if in "CONFIG" then
+ * it leaves the state as is. This is only used when
+ * implementing actions using the low-level API.
+ *
+ * For more information on states, see guestfs(3).
+ *
+ * @throws LibGuestFSException
+ */
+ public void end_busy ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("end_busy: handle is closed");
+ _end_busy (g);
+ }
+ private native void _end_busy (long g)
+ throws LibGuestFSException;
+
+ /**
* mount a guest disk at a position in the filesystem
*
* Mount a guest disk at a position in the filesystem.
* make a filesystem
*
* This creates a filesystem on "device" (usually a
- * partition of LVM logical volume). The filesystem type is
+ * partition or LVM logical volume). The filesystem type is
* "fstype", for example "ext3".
*
* @throws LibGuestFSException
* you would pass "lines" as a single element list, when
* the single element being the string "," (comma).
*
+ * See also: "g.sfdisk_l", "g.sfdisk_N"
+ *
* This command is dangerous. Without careful use you can
* easily destroy all your data.
*
* calculated using "strlen" (so in this case the content
* cannot contain embedded ASCII NULs).
*
+ * *NB.* Owing to a bug, writing content containing ASCII
+ * NUL characters does *not* work, even if the length is
+ * specified. We hope to resolve this bug in a future
+ * version. In the meantime use "g.upload".
+ *
* Because of the message protocol, there is a transfer
* limit of somewhere between 2MB and 4MB. To transfer
* large files you should use FTP.
* Subsequent elements are parameters. The list must be
* non-empty (ie. must contain a program name).
*
+ * The return value is anything printed to *stdout* by the
+ * command.
+ *
+ * If the command returns a non-zero exit status, then this
+ * function returns an error message. The error message
+ * string is the content of *stderr* from the command.
+ *
* The $PATH environment variable will contain at least
* "/usr/bin" and "/bin". If you require a program from
* another location, you should provide the full path in
* ensure all filesystems that are needed are mounted at
* the right locations.
*
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
* @throws LibGuestFSException
*/
public String command (String[] arguments)
* This is the same as "g.command", but splits the result
* into a list of lines.
*
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
* @throws LibGuestFSException
*/
public String[] command_lines (String[] arguments)
* which should have filesystem type "fstype".
*
* The returned integer is the status. See fsck(8) for the
- * list of status codes from "fsck", and note that multiple
- * status codes can be summed together.
+ * list of status codes from "fsck".
+ *
+ * Notes:
+ *
+ * * Multiple status codes can be summed together.
*
- * It is entirely equivalent to running "fsck -a -t fstype
- * device". Note that checking or repairing NTFS volumes is
- * not supported (by linux-ntfs).
+ * * A non-zero return code can mean "success", for
+ * example if errors have been corrected on the
+ * filesystem.
+ *
+ * * Checking or repairing NTFS volumes is not supported
+ * (by linux-ntfs).
+ *
+ * This command is entirely equivalent to running "fsck -a
+ * -t fstype device".
*
* @throws LibGuestFSException
*/
private native void _zero (long g, String device)
throws LibGuestFSException;
+ /**
+ * install GRUB
+ *
+ * This command installs GRUB (the Grand Unified
+ * Bootloader) on "device", with the root directory being
+ * "root".
+ *
+ * @throws LibGuestFSException
+ */
+ public void grub_install (String root, String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("grub_install: handle is closed");
+ _grub_install (g, root, device);
+ }
+ private native void _grub_install (long g, String root, String device)
+ throws LibGuestFSException;
+
+ /**
+ * copy a file
+ *
+ * This copies a file from "src" to "dest" where "dest" is
+ * either a destination filename or destination directory.
+ *
+ * @throws LibGuestFSException
+ */
+ public void cp (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("cp: handle is closed");
+ _cp (g, src, dest);
+ }
+ private native void _cp (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * copy a file or directory recursively
+ *
+ * This copies a file or directory from "src" to "dest"
+ * recursively using the "cp -a" command.
+ *
+ * @throws LibGuestFSException
+ */
+ public void cp_a (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("cp_a: handle is closed");
+ _cp_a (g, src, dest);
+ }
+ private native void _cp_a (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * move a file
+ *
+ * This moves a file from "src" to "dest" where "dest" is
+ * either a destination filename or destination directory.
+ *
+ * @throws LibGuestFSException
+ */
+ public void mv (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("mv: handle is closed");
+ _mv (g, src, dest);
+ }
+ private native void _mv (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * drop kernel page cache, dentries and inodes
+ *
+ * This instructs the guest kernel to drop its page cache,
+ * and/or dentries and inode caches. The parameter
+ * "whattodrop" tells the kernel what precisely to drop,
+ * see <http://linux-mm.org/Drop_Caches>
+ *
+ * Setting "whattodrop" to 3 should drop everything.
+ *
+ * This automatically calls sync(2) before the operation,
+ * so that the maximum guest memory is freed.
+ *
+ * @throws LibGuestFSException
+ */
+ public void drop_caches (int whattodrop)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("drop_caches: handle is closed");
+ _drop_caches (g, whattodrop);
+ }
+ private native void _drop_caches (long g, int whattodrop)
+ throws LibGuestFSException;
+
+ /**
+ * return kernel messages
+ *
+ * This returns the kernel messages ("dmesg" output) from
+ * the guest kernel. This is sometimes useful for extended
+ * debugging of problems.
+ *
+ * Another way to get the same information is to enable
+ * verbose messages with "g.set_verbose" or by setting the
+ * environment variable "LIBGUESTFS_DEBUG=1" before running
+ * the program.
+ *
+ * @throws LibGuestFSException
+ */
+ public String dmesg ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("dmesg: handle is closed");
+ return _dmesg (g);
+ }
+ private native String _dmesg (long g)
+ throws LibGuestFSException;
+
+ /**
+ * ping the guest daemon
+ *
+ * This is a test probe into the guestfs daemon running
+ * inside the qemu subprocess. Calling this function checks
+ * that the daemon responds to the ping message, without
+ * affecting the daemon or attached block device(s) in any
+ * other way.
+ *
+ * @throws LibGuestFSException
+ */
+ public void ping_daemon ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("ping_daemon: handle is closed");
+ _ping_daemon (g);
+ }
+ private native void _ping_daemon (long g)
+ throws LibGuestFSException;
+
+ /**
+ * test if two files have equal contents
+ *
+ * This compares the two files "file1" and "file2" and
+ * returns true if their content is exactly equal, or false
+ * otherwise.
+ *
+ * The external cmp(1) program is used for the comparison.
+ *
+ * @throws LibGuestFSException
+ */
+ public boolean equal (String file1, String file2)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("equal: handle is closed");
+ return _equal (g, file1, file2);
+ }
+ private native boolean _equal (long g, String file1, String file2)
+ throws LibGuestFSException;
+
+ /**
+ * print the printable strings in a file
+ *
+ * This runs the strings(1) command on a file and returns
+ * the list of printable strings found.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String[] strings (String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("strings: handle is closed");
+ return _strings (g, path);
+ }
+ private native String[] _strings (long g, String path)
+ throws LibGuestFSException;
+
+ /**
+ * print the printable strings in a file
+ *
+ * This is like the "g.strings" command, but allows you to
+ * specify the encoding.
+ *
+ * See the strings(1) manpage for the full list of
+ * encodings.
+ *
+ * Commonly useful encodings are "l" (lower case L) which
+ * will show strings inside Windows/x86 files.
+ *
+ * The returned strings are transcoded to UTF-8.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String[] strings_e (String encoding, String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("strings_e: handle is closed");
+ return _strings_e (g, encoding, path);
+ }
+ private native String[] _strings_e (long g, String encoding, String path)
+ throws LibGuestFSException;
+
+ /**
+ * dump a file in hexadecimal
+ *
+ * This runs "hexdump -C" on the given "path". The result
+ * is the human-readable, canonical hex dump of the file.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String hexdump (String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("hexdump: handle is closed");
+ return _hexdump (g, path);
+ }
+ private native String _hexdump (long g, String path)
+ throws LibGuestFSException;
+
+ /**
+ * zero unused inodes and disk blocks on ext2/3 filesystem
+ *
+ * This runs the *zerofree* program on "device". This
+ * program claims to zero unused inodes and disk blocks on
+ * an ext2/3 filesystem, thus making it possible to
+ * compress the filesystem more effectively.
+ *
+ * You should not run this program if the filesystem is
+ * mounted.
+ *
+ * It is possible that using this program can damage the
+ * filesystem or data on the filesystem.
+ *
+ * @throws LibGuestFSException
+ */
+ public void zerofree (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("zerofree: handle is closed");
+ _zerofree (g, device);
+ }
+ private native void _zerofree (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * resize an LVM physical volume
+ *
+ * This resizes (expands or shrinks) an existing LVM
+ * physical volume to match the new size of the underlying
+ * device.
+ *
+ * @throws LibGuestFSException
+ */
+ public void pvresize (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("pvresize: handle is closed");
+ _pvresize (g, device);
+ }
+ private native void _pvresize (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * modify a single partition on a block device
+ *
+ * This runs sfdisk(8) option to modify just the single
+ * partition "n" (note: "n" counts from 1).
+ *
+ * For other parameters, see "g.sfdisk". You should usually
+ * pass 0 for the cyls/heads/sectors parameters.
+ *
+ * This command is dangerous. Without careful use you can
+ * easily destroy all your data.
+ *
+ * @throws LibGuestFSException
+ */
+ public void sfdisk_N (String device, int n, int cyls, int heads, int sectors, String line)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("sfdisk_N: handle is closed");
+ _sfdisk_N (g, device, n, cyls, heads, sectors, line);
+ }
+ private native void _sfdisk_N (long g, String device, int n, int cyls, int heads, int sectors, String line)
+ throws LibGuestFSException;
+
+ /**
+ * display the partition table
+ *
+ * This displays the partition table on "device", in the
+ * human-readable output of the sfdisk(8) command. It is
+ * not intended to be parsed.
+ *
+ * @throws LibGuestFSException
+ */
+ public String sfdisk_l (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("sfdisk_l: handle is closed");
+ return _sfdisk_l (g, device);
+ }
+ private native String _sfdisk_l (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * display the kernel geometry
+ *
+ * This displays the kernel's idea of the geometry of
+ * "device".
+ *
+ * The result is in human-readable format, and not designed
+ * to be parsed.
+ *
+ * @throws LibGuestFSException
+ */
+ public String sfdisk_kernel_geometry (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("sfdisk_kernel_geometry: handle is closed");
+ return _sfdisk_kernel_geometry (g, device);
+ }
+ private native String _sfdisk_kernel_geometry (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * display the disk geometry from the partition table
+ *
+ * This displays the disk geometry of "device" read from
+ * the partition table. Especially in the case where the
+ * underlying block device has been resized, this can be
+ * different from the kernel's idea of the geometry (see
+ * "g.sfdisk_kernel_geometry").
+ *
+ * The result is in human-readable format, and not designed
+ * to be parsed.
+ *
+ * @throws LibGuestFSException
+ */
+ public String sfdisk_disk_geometry (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("sfdisk_disk_geometry: handle is closed");
+ return _sfdisk_disk_geometry (g, device);
+ }
+ private native String _sfdisk_disk_geometry (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * activate or deactivate all volume groups
+ *
+ * This command activates or (if "activate" is false)
+ * deactivates all logical volumes in all volume groups. If
+ * activated, then they are made known to the kernel, ie.
+ * they appear as "/dev/mapper" devices. If deactivated,
+ * then those devices disappear.
+ *
+ * This command is the same as running "vgchange -a y|n"
+ *
+ * @throws LibGuestFSException
+ */
+ public void vg_activate_all (boolean activate)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("vg_activate_all: handle is closed");
+ _vg_activate_all (g, activate);
+ }
+ private native void _vg_activate_all (long g, boolean activate)
+ throws LibGuestFSException;
+
+ /**
+ * activate or deactivate some volume groups
+ *
+ * This command activates or (if "activate" is false)
+ * deactivates all logical volumes in the listed volume
+ * groups "volgroups". If activated, then they are made
+ * known to the kernel, ie. they appear as "/dev/mapper"
+ * devices. If deactivated, then those devices disappear.
+ *
+ * This command is the same as running "vgchange -a y|n
+ * volgroups..."
+ *
+ * Note that if "volgroups" is an empty list then all
+ * volume groups are activated or deactivated.
+ *
+ * @throws LibGuestFSException
+ */
+ public void vg_activate (boolean activate, String[] volgroups)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("vg_activate: handle is closed");
+ _vg_activate (g, activate, volgroups);
+ }
+ private native void _vg_activate (long g, boolean activate, String[] volgroups)
+ throws LibGuestFSException;
+
+ /**
+ * resize an LVM logical volume
+ *
+ * This resizes (expands or shrinks) an existing LVM
+ * logical volume to "mbytes". When reducing, data in the
+ * reduced part is lost.
+ *
+ * @throws LibGuestFSException
+ */
+ public void lvresize (String device, int mbytes)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("lvresize: handle is closed");
+ _lvresize (g, device, mbytes);
+ }
+ private native void _lvresize (long g, String device, int mbytes)
+ throws LibGuestFSException;
+
+ /**
+ * resize an ext2/ext3 filesystem
+ *
+ * This resizes an ext2 or ext3 filesystem to match the
+ * size of the underlying device.
+ *
+ * *Note:* It is sometimes required that you run
+ * "g.e2fsck_f" on the "device" before calling this
+ * command. For unknown reasons "resize2fs" sometimes gives
+ * an error about this and sometimes not. In any case, it
+ * is always safe to call "g.e2fsck_f" before calling this
+ * function.
+ *
+ * @throws LibGuestFSException
+ */
+ public void resize2fs (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("resize2fs: handle is closed");
+ _resize2fs (g, device);
+ }
+ private native void _resize2fs (long g, String device)
+ throws LibGuestFSException;
+
+ /**
+ * find all files and directories
+ *
+ * This command lists out all files and directories,
+ * recursively, starting at "directory". It is essentially
+ * equivalent to running the shell command "find directory
+ * -print" but some post-processing happens on the output,
+ * described below.
+ *
+ * This returns a list of strings *without any prefix*.
+ * Thus if the directory structure was:
+ *
+ * /tmp/a
+ * /tmp/b
+ * /tmp/c/d
+ *
+ * then the returned list from "g.find" "/tmp" would be 4
+ * elements:
+ *
+ * a
+ * b
+ * c
+ * c/d
+ *
+ * If "directory" is not a directory, then this command
+ * returns an error.
+ *
+ * The returned list is sorted.
+ *
+ * @throws LibGuestFSException
+ */
+ public String[] find (String directory)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("find: handle is closed");
+ return _find (g, directory);
+ }
+ private native String[] _find (long g, String directory)
+ throws LibGuestFSException;
+
+ /**
+ * check an ext2/ext3 filesystem
+ *
+ * This runs "e2fsck -p -f device", ie. runs the ext2/ext3
+ * filesystem checker on "device", noninteractively ("-p"),
+ * even if the filesystem appears to be clean ("-f").
+ *
+ * This command is only needed because of "g.resize2fs"
+ * (q.v.). Normally you should use "g.fsck".
+ *
+ * @throws LibGuestFSException
+ */
+ public void e2fsck_f (String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("e2fsck_f: handle is closed");
+ _e2fsck_f (g, device);
+ }
+ private native void _e2fsck_f (long g, String device)
+ throws LibGuestFSException;
+
}
git.annexia.org / libguestfs.git / blobdiff