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Commit | Line | Data |
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3e16d5fc DM |
1 | #!/usr/bin/perl -w |
2 | ||
3 | use strict; | |
4 | use Getopt::Long; | |
5 | use File::Path; | |
6 | use IO::File; | |
7 | use PVE::JSONSchema; | |
8 | use PVE::Tools; | |
9 | use PVE::Cluster qw(cfs_read_file); | |
10 | use PVE::QemuServer; | |
11 | ||
12 | my @std_opts = ('storage=s', 'info', 'prealloc'); | |
13 | ||
14 | sub print_usage { | |
15 | print STDERR "usage: $0 [--storage=<storeid>] [--info] [--prealloc] <archive> <vmid>\n\n"; | |
16 | } | |
17 | ||
18 | my $opts = {}; | |
19 | if (!GetOptions ($opts, @std_opts)) { | |
20 | print_usage (); | |
21 | exit (-1); | |
22 | } | |
23 | ||
24 | sub extract_archive { | |
25 | # NOTE: this is run as tar subprocess (--to-command) | |
26 | ||
27 | $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub { | |
28 | die "interrupted by signal\n"; | |
29 | }; | |
30 | ||
31 | my $filename = $ENV{TAR_FILENAME}; | |
32 | die "got strange environment - no TAR_FILENAME\n" if !$filename; | |
33 | ||
34 | my $filesize = $ENV{TAR_SIZE}; | |
35 | die "got strange file size '$filesize'\n" if !$filesize; | |
36 | ||
37 | my $tmpdir = $ENV{VZDUMP_TMPDIR}; | |
38 | die "got strange environment - no VZDUMP_TMPDIR\n" if !$tmpdir; | |
39 | ||
40 | my $filetype = $ENV{TAR_FILETYPE} || 'none'; | |
41 | die "got strange filetype '$filetype'\n" if $filetype ne 'f'; | |
42 | ||
43 | my $vmid = $ENV{VZDUMP_VMID}; | |
44 | PVE::JSONSchema::pve_verify_vmid($vmid); | |
45 | ||
46 | if ($opts->{info}) { | |
47 | print STDERR "reading archive member '$filename'\n"; | |
48 | } else { | |
49 | print STDERR "extracting '$filename' from archive\n"; | |
50 | } | |
51 | ||
52 | my $conffile = "$tmpdir/qemu-server.conf"; | |
53 | my $statfile = "$tmpdir/qmrestore.stat"; | |
54 | ||
55 | if ($filename eq 'qemu-server.conf') { | |
56 | my $outfd = IO::File->new($conffile, "w") || | |
57 | die "unable to write file '$conffile'\n"; | |
58 | ||
59 | while (defined(my $line = <>)) { | |
60 | print $outfd $line; | |
61 | print STDERR "CONFIG: $line" if $opts->{info}; | |
62 | } | |
63 | ||
64 | $outfd->close(); | |
65 | ||
66 | exit(0); | |
67 | } | |
68 | ||
69 | if ($opts->{info}) { | |
70 | exec 'dd', 'bs=256K', "of=/dev/null"; | |
71 | die "couldn't exec dd: $!\n"; | |
72 | } | |
73 | ||
74 | my $conffd = IO::File->new($conffile, "r") || | |
75 | die "unable to read file '$conffile'\n"; | |
76 | ||
77 | my $map; | |
78 | while (defined(my $line = <$conffd>)) { | |
79 | if ($line =~ m/^\#vzdump\#map:(\S+):(\S+):(\d+):(\S*):$/) { | |
80 | $map->{$2} = { virtdev => $1, size => $3, storeid => $4 }; | |
81 | } | |
82 | } | |
83 | close($conffd); | |
84 | ||
85 | my $statfd = IO::File->new($statfile, "a") || | |
86 | die "unable to open file '$statfile'\n"; | |
87 | ||
88 | if ($filename !~ m/^.*\.([^\.]+)$/){ | |
89 | die "got strange filename '$filename'\n"; | |
90 | } | |
91 | my $format = $1; | |
92 | ||
93 | my $path; | |
94 | ||
95 | if (!$map) { | |
96 | print STDERR "restoring old style vzdump archive - " . | |
97 | "no device map inside archive\n"; | |
98 | die "can't restore old style archive to storage '$opts->{storage}'\n" | |
99 | if $opts->{storage} && $opts->{storage} ne 'local'; | |
100 | ||
101 | my $dir = "/var/lib/vz/images/$vmid"; | |
102 | mkpath $dir; | |
103 | ||
104 | $path = "$dir/$filename"; | |
105 | ||
106 | print $statfd "vzdump::$path\n"; | |
107 | $statfd->close(); | |
108 | ||
109 | } else { | |
110 | ||
111 | my $info = $map->{$filename}; | |
112 | die "no vzdump info for '$filename'\n" if !$info; | |
113 | ||
114 | if ($filename !~ m/^vm-disk-$info->{virtdev}\.([^\.]+)$/){ | |
115 | die "got strange filename '$filename'\n"; | |
116 | } | |
117 | ||
118 | if ($filesize != $info->{size}) { | |
119 | die "detected size difference for '$filename' " . | |
120 | "($filesize != $info->{size})\n"; | |
121 | } | |
122 | ||
123 | my $storeid; | |
124 | if ($opts->{storage}) { | |
125 | $storeid = $opts->{storage}; | |
126 | } else { | |
127 | $storeid = $info->{storeid} || 'local'; | |
128 | } | |
129 | ||
130 | my $cfg = cfs_read_file('storage.cfg'); | |
131 | my $scfg = PVE::Storage::storage_config($cfg, $storeid); | |
132 | ||
133 | my $alloc_size = ($filesize + 1024 - 1)/1024; | |
134 | if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs') { | |
135 | # hack: we just alloc a small file (32K) - we overwrite it anyways | |
136 | $alloc_size = 32; | |
137 | } else { | |
138 | die "unable to restore '$filename' to storage '$storeid'\n" . | |
139 | "storage type '$scfg->{type}' does not support format '$format\n" | |
140 | if $format ne 'raw'; | |
141 | } | |
142 | ||
143 | my $volid = PVE::Storage::vdisk_alloc($cfg, $storeid, $vmid, | |
144 | $format, undef, $alloc_size); | |
145 | ||
146 | print STDERR "new volume ID is '$volid'\n"; | |
147 | ||
148 | print $statfd "vzdump:$info->{virtdev}:$volid\n"; | |
149 | $statfd->close(); | |
150 | ||
151 | $path = PVE::Storage::path($cfg, $volid); | |
152 | } | |
153 | ||
154 | print STDERR "restore data to '$path' ($filesize bytes)\n"; | |
155 | ||
156 | if ($opts->{prealloc} || $format ne 'raw' || (-b $path)) { | |
157 | exec 'dd', 'ibs=256K', 'obs=256K', "of=$path"; | |
158 | die "couldn't exec dd: $!\n"; | |
159 | } else { | |
160 | exec '/usr/lib/qemu-server/sparsecp', $path; | |
161 | die "couldn't exec sparsecp: $!\n"; | |
162 | } | |
163 | } | |
164 | ||
165 | ||
166 | if (scalar(@ARGV) == 2) { | |
167 | my $archive = shift; | |
168 | my $vmid = shift; | |
169 | ||
170 | # fixme: use API call | |
171 | PVE::JSONSchema::pve_verify_vmid($vmid); | |
172 | ||
173 | PVE::Cluster::check_cfs_quorum(); | |
174 | ||
175 | PVE::QemuServer::restore_archive($archive, $vmid, $opts); | |
176 | ||
177 | } elsif (scalar(@ARGV) == 0 && $ENV{TAR_FILENAME}) { | |
178 | extract_archive(); | |
179 | } else { | |
180 | print_usage (); | |
181 | exit(-1); | |
182 | } | |
183 | ||
184 | exit(0); | |
185 | ||
186 |