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1 | package PVE::Storage::DirPlugin; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use Cwd; | |
6 | use File::Path; | |
7 | use PVE::Storage::Plugin; | |
8 | use PVE::JSONSchema qw(get_standard_option); | |
9 | ||
10 | use base qw(PVE::Storage::Plugin); | |
11 | ||
12 | # Configuration | |
13 | ||
14 | sub type { | |
15 | return 'dir'; | |
16 | } | |
17 | ||
18 | sub plugindata { | |
19 | return { | |
20 | content => [ { images => 1, rootdir => 1, vztmpl => 1, iso => 1, backup => 1, snippets => 1, none => 1 }, | |
21 | { images => 1, rootdir => 1 }], | |
22 | format => [ { raw => 1, qcow2 => 1, vmdk => 1, subvol => 1 } , 'raw' ], | |
23 | }; | |
24 | } | |
25 | ||
26 | sub properties { | |
27 | return { | |
28 | path => { | |
29 | description => "File system path.", | |
30 | type => 'string', format => 'pve-storage-path', | |
31 | }, | |
32 | mkdir => { | |
33 | description => "Create the directory if it doesn't exist.", | |
34 | type => 'boolean', | |
35 | default => 'yes', | |
36 | }, | |
37 | is_mountpoint => { | |
38 | description => | |
39 | "Assume the given path is an externally managed mountpoint " . | |
40 | "and consider the storage offline if it is not mounted. ". | |
41 | "Using a boolean (yes/no) value serves as a shortcut to using the target path in this field.", | |
42 | type => 'string', | |
43 | default => 'no', | |
44 | }, | |
45 | bwlimit => get_standard_option('bwlimit'), | |
46 | }; | |
47 | } | |
48 | ||
49 | sub options { | |
50 | return { | |
51 | path => { fixed => 1 }, | |
52 | nodes => { optional => 1 }, | |
53 | shared => { optional => 1 }, | |
54 | disable => { optional => 1 }, | |
55 | maxfiles => { optional => 1 }, | |
56 | 'prune-backups' => { optional => 1 }, | |
57 | content => { optional => 1 }, | |
58 | format => { optional => 1 }, | |
59 | mkdir => { optional => 1 }, | |
60 | is_mountpoint => { optional => 1 }, | |
61 | bwlimit => { optional => 1 }, | |
62 | preallocation => { optional => 1 }, | |
63 | }; | |
64 | } | |
65 | ||
66 | # Storage implementation | |
67 | # | |
68 | ||
69 | # NOTE: should ProcFSTools::is_mounted accept an optional cache like this? | |
70 | sub path_is_mounted { | |
71 | my ($mountpoint, $mountdata) = @_; | |
72 | ||
73 | $mountpoint = Cwd::realpath($mountpoint); # symlinks | |
74 | return 0 if !defined($mountpoint); # path does not exist | |
75 | ||
76 | $mountdata = PVE::ProcFSTools::parse_proc_mounts() if !$mountdata; | |
77 | return 1 if grep { $_->[1] eq $mountpoint } @$mountdata; | |
78 | return undef; | |
79 | } | |
80 | ||
81 | sub parse_is_mountpoint { | |
82 | my ($scfg) = @_; | |
83 | my $is_mp = $scfg->{is_mountpoint}; | |
84 | return undef if !defined $is_mp; | |
85 | if (defined(my $bool = PVE::JSONSchema::parse_boolean($is_mp))) { | |
86 | return $bool ? $scfg->{path} : undef; | |
87 | } | |
88 | return $is_mp; # contains a path | |
89 | } | |
90 | ||
91 | sub get_volume_notes { | |
92 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
93 | ||
94 | my $path = $class->filesystem_path($scfg, $volname); | |
95 | $path .= $class->SUPER::NOTES_EXT; | |
96 | ||
97 | return PVE::Tools::file_get_contents($path) if -f $path; | |
98 | ||
99 | return ''; | |
100 | } | |
101 | ||
102 | sub update_volume_notes { | |
103 | my ($class, $scfg, $storeid, $volname, $notes, $timeout) = @_; | |
104 | ||
105 | my ($vtype) = $class->parse_volname($volname); | |
106 | die "only backups can have notes\n" if $vtype ne 'backup'; | |
107 | ||
108 | my $path = $class->filesystem_path($scfg, $volname); | |
109 | $path .= $class->SUPER::NOTES_EXT; | |
110 | ||
111 | if (defined($notes) && $notes ne '') { | |
112 | PVE::Tools::file_set_contents($path, $notes); | |
113 | } else { | |
114 | unlink $path or die "could not delete notes - $!\n"; | |
115 | } | |
116 | return; | |
117 | } | |
118 | ||
119 | sub status { | |
120 | my ($class, $storeid, $scfg, $cache) = @_; | |
121 | ||
122 | if (defined(my $mp = parse_is_mountpoint($scfg))) { | |
123 | $cache->{mountdata} = PVE::ProcFSTools::parse_proc_mounts() | |
124 | if !$cache->{mountdata}; | |
125 | ||
126 | return undef if !path_is_mounted($mp, $cache->{mountdata}); | |
127 | } | |
128 | ||
129 | return $class->SUPER::status($storeid, $scfg, $cache); | |
130 | } | |
131 | ||
132 | ||
133 | sub activate_storage { | |
134 | my ($class, $storeid, $scfg, $cache) = @_; | |
135 | ||
136 | my $path = $scfg->{path}; | |
137 | if (!defined($scfg->{mkdir}) || $scfg->{mkdir}) { | |
138 | mkpath $path; | |
139 | } | |
140 | ||
141 | my $mp = parse_is_mountpoint($scfg); | |
142 | if (defined($mp) && !path_is_mounted($mp, $cache->{mountdata})) { | |
143 | die "unable to activate storage '$storeid' - " . | |
144 | "directory is expected to be a mount point but is not mounted: '$mp'\n"; | |
145 | } | |
146 | ||
147 | $class->SUPER::activate_storage($storeid, $scfg, $cache); | |
148 | } | |
149 | ||
150 | sub check_config { | |
151 | my ($self, $sectionId, $config, $create, $skipSchemaCheck) = @_; | |
152 | my $opts = PVE::SectionConfig::check_config($self, $sectionId, $config, $create, $skipSchemaCheck); | |
153 | return $opts if !$create; | |
154 | if ($opts->{path} !~ m@^/[-/a-zA-Z0-9_.]+$@) { | |
155 | die "illegal path for directory storage: $opts->{path}\n"; | |
156 | } | |
157 | return $opts; | |
158 | } | |
159 | ||
160 | 1; |