diff options
| -rw-r--r-- | perl/lib/Sys/Guestfs/Lib.pm | 419 |
1 files changed, 29 insertions, 390 deletions
diff --git a/perl/lib/Sys/Guestfs/Lib.pm b/perl/lib/Sys/Guestfs/Lib.pm index 2292839b..5df62292 100644 --- a/perl/lib/Sys/Guestfs/Lib.pm +++ b/perl/lib/Sys/Guestfs/Lib.pm @@ -25,7 +25,7 @@ use warnings; # make a change which is not backwards compatible. It is not related # to the libguestfs version number. use vars qw($VERSION); -$VERSION = '0.2'; +$VERSION = '0.3'; use Carp qw(croak); @@ -47,14 +47,10 @@ Sys::Guestfs::Lib - Useful functions for using libguestfs from Perl =head1 SYNOPSIS - use Sys::Guestfs::Lib qw(open_guest inspect_all_partitions ...); + use Sys::Guestfs::Lib qw(open_guest ...); $g = open_guest ($name); - %fses = inspect_all_partitions ($g, \@partitions); - -(and many more calls - see the rest of this manpage) - =head1 DESCRIPTION C<Sys::Guestfs::Lib> is an extra library of useful functions for using @@ -65,6 +61,14 @@ The basic libguestfs API is not covered by this manpage. Please refer instead to L<Sys::Guestfs(3)> and L<guestfs(3)>. The libvirt API is also not covered. For that, see L<Sys::Virt(3)>. +=head1 DEPRECATION OF SOME FUNCTIONS + +This module contains functions and code to perform inspection of guest +images. Since libguestfs 1.5.3 this ability has moved into the core +API (see L<guestfs(3)/INSPECTION>). The inspection functions in this +module are deprecated and will not be updated. Each deprecated +function is marked in the documentation below. + =head1 BASIC FUNCTIONS =cut @@ -376,109 +380,11 @@ sub file_architecture =head1 OPERATING SYSTEM INSPECTION FUNCTIONS -The functions in this section can be used to inspect the operating -system(s) available inside a virtual machine image. For example, you -can find out if the VM is Linux or Windows, how the partitions are -meant to be mounted, and what applications are installed. - -If you just want a simple command-line interface to this -functionality, use the L<virt-inspector(1)> tool. The documentation -below covers the case where you want to access this functionality from -a Perl program. - -Once you have the list of partitions (from C<get_partitions>) there -are several steps involved: - -=over 4 - -=item 1. - -Look at each partition separately and find out what is on it. - -The information you get back includes whether the partition contains a -filesystem or swapspace, what sort of filesystem (eg. ext3, ntfs), and -a first pass guess at the content of the filesystem (eg. Linux boot, -Windows root). - -The result of this step is a C<%fs> hash of information, one hash for -each partition. - -See: C<inspect_partition>, C<inspect_all_partitions> - -=item 2. - -Work out the relationship between partitions. - -In this step we work out how partitions are related to each other. In -the case of a single-boot VM, we work out how the partitions are -mounted in respect of each other (eg. C</dev/sda1> is mounted as -C</boot>). In the case of a multi-boot VM where there are several -roots, we may identify several operating system roots, and mountpoints -can even be shared. - -The result of this step is a single hash called C<%oses> which is -described in more detail below, but at the top level looks like: - - %oses = { - '/dev/VG/Root1' => \%os1, - '/dev/VG/Root2' => \%os2, - } - - %os1 = { - os => 'linux', - mounts => { - '/' => '/dev/VG/Root1', - '/boot' => '/dev/sda1', - }, - ... - } - -(example shows a multi-boot VM containing two root partitions). - -See: C<inspect_operating_systems> - -=item 3. - -Mount up the disks. - -Previous to this point we've essentially been looking at each -partition in isolation. Now we construct a true guest filesystem by -mounting up all of the disks. Only once everything is mounted up can -we run commands in the OS context to do more detailed inspection. - -See: C<mount_operating_system> - -=item 4. - -Check for kernels and applications. - -This step now does more detailed inspection, where we can look for -kernels, applications and more installed in the guest. - -The result of this is an enhanced C<%os> hash. - -See: C<inspect_in_detail> - -=item 5. - -Generate output. - -This library does not contain functions for generating output based on -the analysis steps above. Use a command line tool such as -L<virt-inspector(1)> to get useful output. - -=back - =head2 inspect_all_partitions - %fses = inspect_all_partitions ($g, \@partitions); - -This calls C<inspect_partition> for each partition in the list -C<@partitions>. - -The result is a hash which maps partition name to C<\%fs> hashref. - -The contents of the C<%fs> hash is explained below. +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -503,94 +409,9 @@ sub inspect_all_partitions =head2 inspect_partition - \%fs = inspect_partition ($g, $partition); - -This function inspects the device named C<$partition> in isolation and -tries to determine what it is. It returns information such as whether -the partition is formatted, and with what, whether it is mountable, -and what it appears to contain (eg. a Windows root, or a Linux /usr). - -If the Perl module L<Win::Hivex(3)> is installed, then additional -information is made available for Windows guests, if we can locate and -read their registries. - -The returned value is a hashref C<\%fs> which may contain the -following top-level keys (any key can be missing): - -=over 4 - -=item fstype - -Filesystem type, eg. "ext2" or "ntfs" - -=item fsos - -Apparent filesystem OS, eg. "linux" or "windows" - -=item is_swap - -If set, the partition is a swap partition. - -=item uuid - -Filesystem UUID. - -=item label - -Filesystem label. - -=item is_mountable - -If set, the partition could be mounted by libguestfs. - -=item content - -Filesystem content, if we could determine it. One of: "linux-grub", -"linux-root", "linux-usrlocal", "linux-usr", "windows-root". - -=item osdistro - -(For Linux root partitions only). -Operating system distribution. One of: "fedora", "rhel", "centos", -"scientific", "debian". - -=item package_format - -(For Linux root partitions only) -The package format used by the guest distribution. One of: "rpm", "deb". - -=item package_management - -(For Linux root partitions only) -The package management tool used by the guest distribution. One of: "rhn", -"yum", "apt". - -=item os_major_version - -(For root partitions only). -Operating system major version number. - -=item os_minor_version - -(For root partitions only). -Operating system minor version number. - -=item fstab - -(For Linux root partitions only). -The contents of the C</etc/fstab> file. - -=item boot_ini - -(For Windows root partitions only). -The contents of the C</boot.ini> (NTLDR) file. - -=item registry - -The value is an arrayref, which is a list of Windows registry -file contents, in Windows C<.REG> format. - -=back +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -982,83 +803,9 @@ sub _check_grub =head2 inspect_operating_systems - \%oses = inspect_operating_systems ($g, \%fses); - -This function works out how partitions are related to each other. In -the case of a single-boot VM, we work out how the partitions are -mounted in respect of each other (eg. C</dev/sda1> is mounted as -C</boot>). In the case of a multi-boot VM where there are several -roots, we may identify several operating system roots, and mountpoints -can even be shared. - -This function returns a hashref C<\%oses> which at the top level looks -like: - - %oses = { - '/dev/VG/Root' => \%os, - } - -There can be multiple roots for a multi-boot VM, but this function -will throw an error if no roots (ie. OSes) could be found. - -The C<\%os> hash contains the following keys (any can be omitted): - -=over 4 - -=item os - -Operating system type, eg. "linux", "windows". - -=item arch - -Operating system userspace architecture, eg. "i386", "x86_64". - -=item distro - -Operating system distribution, eg. "debian". - -=item product_name - -Free text product name. - -=item major_version - -Operating system major version, eg. "4". - -=item minor_version - -Operating system minor version, eg "3". - -=item root - -The value is a reference to the root partition C<%fs> hash. - -=item root_device - -The value is the name of the root partition (as a string). - -=item mounts - -Mountpoints. -The value is a hashref like this: - - mounts => { - '/' => '/dev/VG/Root', - '/boot' => '/dev/sda1', - } - -=item filesystems - -Filesystems (including swap devices and unmounted partitions). -The value is a hashref like this: - - filesystems => { - '/dev/sda1' => \%fs, - '/dev/VG/Root' => \%fs, - '/dev/VG/Swap' => \%fs, - } - -=back +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -1197,17 +944,9 @@ sub _find_filesystem =head2 mount_operating_system - mount_operating_system ($g, \%os, [$ro]); - -This function mounts the operating system described in the -C<%os> hash according to the C<mounts> table in that hash (see -C<inspect_operating_systems>). - -The partitions are mounted read-only unless the third parameter -is specified as zero explicitly. - -To reverse the effect of this call, use the standard -libguestfs API call C<$g-E<gt>umount_all ()>. +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -1237,107 +976,9 @@ sub mount_operating_system =head2 inspect_in_detail - mount_operating_system ($g, \%os); - inspect_in_detail ($g, \%os); - $g->umount_all (); - -The C<inspect_in_detail> function inspects the mounted operating -system for installed applications, installed kernels, kernel modules, -system architecture, and more. - -It adds extra keys to the existing C<%os> hash reflecting what it -finds. These extra keys are: - -=over 4 - -=item apps - -List of applications. - -=item boot - -Boot configurations. A hash containing: - -=over 4 - -=item configs - -An array of boot configurations. Each array entry is a hash containing: - -=over 4 - -=item initrd - -A reference to the expanded initrd structure (see below) for the initrd used by -this boot configuration. - -=item kernel - -A reference to the expanded kernel structure (see below) for the kernel used by -this boot configuration. - -=item title - -The human readable name of the configuration. - -=item cmdline - -The kernel command line. - -=back - -=item default - -The index of the default configuration in the configs array. - -=item grub_fs - -The path of the filesystem containing the grub partition. - -=back - -=item kernels - -List of kernels. - -This is a hash of kernel version =E<gt> a hash with the following keys: - -=over 4 - -=item version - -Kernel version. - -=item arch - -Kernel architecture (eg. C<x86-64>). - -=item modules - -List of modules. - -=item path - -The path to the kernel's vmlinuz file. - -=item package - -If the kernel was installed in a package, the name of that package. - -=back - -=item modprobe_aliases - -(For Linux VMs). -The contents of the modprobe configuration. - -=item initrd_modules - -(For Linux VMs). -The kernel modules installed in the initrd. The value is -a hashref of kernel version to list of modules. - -=back +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -1604,11 +1245,9 @@ sub _check_for_kernels =head2 inspect_linux_kernel - my $kernel_hash = inspect_linux_kernel($g, $vmlinuz_path, $package_format); - -inspect_linux_kernel returns a hash describing the target linux kernel. For the -contents of the hash, see the I<kernels> structure described under -L</inspect_in_detail>. +This function is deprecated. It will not be updated in future +versions of libguestfs. New code should not use this function. Use +the core API functions instead, see L<guestfs(3)/INSPECTION>. =cut @@ -1762,7 +1401,7 @@ sub _inspect_initrd =head1 COPYRIGHT -Copyright (C) 2009 Red Hat Inc. +Copyright (C) 2009-2010 Red Hat Inc. =head1 LICENSE |