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Commit | Line | Data |
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4f914e6e MR |
1 | package PVE::Storage::ZFSPlugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use POSIX; | |
5332e6c9 | 7 | use PVE::Tools qw(run_command); |
85fda4dd | 8 | use PVE::Storage::ZFSPoolPlugin; |
21430e50 | 9 | use PVE::RPCEnvironment; |
4f914e6e | 10 | |
85fda4dd | 11 | use base qw(PVE::Storage::ZFSPoolPlugin); |
a7d56be6 MR |
12 | use PVE::Storage::LunCmd::Comstar; |
13 | use PVE::Storage::LunCmd::Istgt; | |
78a64432 | 14 | use PVE::Storage::LunCmd::Iet; |
4f914e6e | 15 | |
21430e50 | 16 | |
4f914e6e MR |
17 | my @ssh_opts = ('-o', 'BatchMode=yes'); |
18 | my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts); | |
3b219e80 | 19 | my $id_rsa_path = '/etc/pve/priv/zfs'; |
4f914e6e | 20 | |
a7d56be6 | 21 | my $lun_cmds = { |
3b219e80 MR |
22 | create_lu => 1, |
23 | delete_lu => 1, | |
24 | import_lu => 1, | |
25 | modify_lu => 1, | |
26 | add_view => 1, | |
27 | list_view => 1, | |
28 | list_lu => 1, | |
a7d56be6 MR |
29 | }; |
30 | ||
31 | my $zfs_unknown_scsi_provider = sub { | |
3b219e80 | 32 | my ($provider) = @_; |
a7d56be6 | 33 | |
3b219e80 | 34 | die "$provider: unknown iscsi provider. Available [comstar, istgt, iet]"; |
a7d56be6 MR |
35 | }; |
36 | ||
37 | my $zfs_get_base = sub { | |
3b219e80 MR |
38 | my ($scfg) = @_; |
39 | ||
40 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
41 | return PVE::Storage::LunCmd::Comstar::get_base; | |
42 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
43 | return PVE::Storage::LunCmd::Istgt::get_base; | |
44 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
45 | return PVE::Storage::LunCmd::Iet::get_base; | |
46 | } else { | |
47 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
48 | } | |
a7d56be6 MR |
49 | }; |
50 | ||
4f914e6e | 51 | sub zfs_request { |
7730694e | 52 | my ($class, $scfg, $timeout, $method, @params) = @_; |
4f914e6e | 53 | |
ef881e10 | 54 | $timeout = PVE::RPCEnvironment->is_worker() ? 60*60 : 10 |
21430e50 | 55 | if !$timeout; |
4f914e6e | 56 | |
e8004c9c DM |
57 | my $msg = ''; |
58 | ||
3b219e80 MR |
59 | if ($lun_cmds->{$method}) { |
60 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
61 | $msg = PVE::Storage::LunCmd::Comstar::run_lun_command($scfg, $timeout, $method, @params); | |
62 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
63 | $msg = PVE::Storage::LunCmd::Istgt::run_lun_command($scfg, $timeout, $method, @params); | |
64 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
65 | $msg = PVE::Storage::LunCmd::Iet::run_lun_command($scfg, $timeout, $method, @params); | |
66 | } else { | |
67 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
68 | } | |
69 | } else { | |
3b219e80 | 70 | |
e8004c9c DM |
71 | my $target = 'root@' . $scfg->{portal}; |
72 | ||
73 | my $cmd = [@ssh_cmd, '-i', "$id_rsa_path/$scfg->{portal}_id_rsa", $target]; | |
3b219e80 | 74 | |
e8004c9c DM |
75 | if ($method eq 'zpool_list') { |
76 | push @$cmd, 'zpool', 'list'; | |
77 | } else { | |
78 | push @$cmd, 'zfs', $method; | |
79 | } | |
3b219e80 | 80 | |
e8004c9c | 81 | push @$cmd, @params; |
3b219e80 | 82 | |
e8004c9c DM |
83 | my $output = sub { |
84 | my $line = shift; | |
85 | $msg .= "$line\n"; | |
3b219e80 MR |
86 | }; |
87 | ||
88 | run_command($cmd, outfunc => $output, timeout => $timeout); | |
89 | } | |
4f914e6e MR |
90 | |
91 | return $msg; | |
92 | } | |
93 | ||
4f914e6e | 94 | sub zfs_get_lu_name { |
7730694e | 95 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 96 | |
3b219e80 | 97 | my $base = $zfs_get_base->($scfg); |
34eaae3f DM |
98 | |
99 | my $object = ($zvol =~ /^.+\/.+/) ? "$base/$zvol" : "$base/$scfg->{pool}/$zvol"; | |
4f914e6e | 100 | |
7730694e | 101 | my $lu_name = $class->zfs_request($scfg, undef, 'list_lu', $object); |
a7d56be6 | 102 | |
3b219e80 MR |
103 | return $lu_name if $lu_name; |
104 | ||
4f914e6e MR |
105 | die "Could not find lu_name for zvol $zvol"; |
106 | } | |
107 | ||
4f914e6e | 108 | sub zfs_add_lun_mapping_entry { |
7730694e | 109 | my ($class, $scfg, $zvol, $guid) = @_; |
4f914e6e | 110 | |
6b5bca68 DM |
111 | if (!defined($guid)) { |
112 | $guid = $class->zfs_get_lu_name($scfg, $zvol); | |
4f914e6e | 113 | } |
3b219e80 | 114 | |
7730694e | 115 | $class->zfs_request($scfg, undef, 'add_view', $guid); |
4f914e6e MR |
116 | } |
117 | ||
118 | sub zfs_delete_lu { | |
7730694e | 119 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 120 | |
7730694e | 121 | my $guid = $class->zfs_get_lu_name($scfg, $zvol); |
4f914e6e | 122 | |
7730694e | 123 | $class->zfs_request($scfg, undef, 'delete_lu', $guid); |
4f914e6e MR |
124 | } |
125 | ||
126 | sub zfs_create_lu { | |
7730694e | 127 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 128 | |
3b219e80 | 129 | my $base = $zfs_get_base->($scfg); |
7730694e | 130 | my $guid = $class->zfs_request($scfg, undef, 'create_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
131 | |
132 | return $guid; | |
133 | } | |
134 | ||
135 | sub zfs_import_lu { | |
7730694e | 136 | my ($class, $scfg, $zvol) = @_; |
4f914e6e | 137 | |
3b219e80 | 138 | my $base = $zfs_get_base->($scfg); |
7730694e | 139 | $class->zfs_request($scfg, undef, 'import_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
140 | } |
141 | ||
142 | sub zfs_resize_lu { | |
7730694e | 143 | my ($class, $scfg, $zvol, $size) = @_; |
4f914e6e | 144 | |
7730694e | 145 | my $guid = $class->zfs_get_lu_name($scfg, $zvol); |
4f914e6e | 146 | |
7730694e | 147 | $class->zfs_request($scfg, undef, 'modify_lu', "${size}K", $guid); |
4f914e6e MR |
148 | } |
149 | ||
150 | sub zfs_get_lun_number { | |
7730694e | 151 | my ($class, $scfg, $guid) = @_; |
4f914e6e MR |
152 | |
153 | die "could not find lun_number for guid $guid" if !$guid; | |
154 | ||
7730694e | 155 | return $class->zfs_request($scfg, undef, 'list_view', $guid); |
4f914e6e MR |
156 | } |
157 | ||
158 | # Configuration | |
159 | ||
160 | sub type { | |
161 | return 'zfs'; | |
162 | } | |
163 | ||
164 | sub plugindata { | |
165 | return { | |
6b5bca68 | 166 | content => [ {images => 1}, { images => 1 }], |
4f914e6e MR |
167 | }; |
168 | } | |
169 | ||
170 | sub properties { | |
171 | return { | |
6b5bca68 DM |
172 | iscsiprovider => { |
173 | description => "iscsi provider", | |
174 | type => 'string', | |
175 | }, | |
176 | # this will disable write caching on comstar and istgt. | |
177 | # it is not implemented for iet. iet blockio always operates with | |
178 | # writethrough caching when not in readonly mode | |
179 | nowritecache => { | |
180 | description => "disable write caching on the target", | |
181 | type => 'boolean', | |
182 | }, | |
183 | comstar_tg => { | |
184 | description => "target group for comstar views", | |
185 | type => 'string', | |
186 | }, | |
187 | comstar_hg => { | |
188 | description => "host group for comstar views", | |
189 | type => 'string', | |
190 | }, | |
4f914e6e MR |
191 | }; |
192 | } | |
193 | ||
194 | sub options { | |
195 | return { | |
6b5bca68 DM |
196 | nodes => { optional => 1 }, |
197 | disable => { optional => 1 }, | |
198 | portal => { fixed => 1 }, | |
199 | target => { fixed => 1 }, | |
200 | pool => { fixed => 1 }, | |
201 | blocksize => { fixed => 1 }, | |
202 | iscsiprovider => { fixed => 1 }, | |
203 | nowritecache => { optional => 1 }, | |
204 | sparse => { optional => 1 }, | |
205 | comstar_hg => { optional => 1 }, | |
206 | comstar_tg => { optional => 1 }, | |
207 | content => { optional => 1 }, | |
4f914e6e MR |
208 | }; |
209 | } | |
210 | ||
211 | # Storage implementation | |
212 | ||
4f914e6e | 213 | sub path { |
e67069eb DM |
214 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
215 | ||
216 | die "direct access to snapshots not implemented" | |
217 | if defined($snapname); | |
4f914e6e MR |
218 | |
219 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
220 | ||
221 | my $target = $scfg->{target}; | |
222 | my $portal = $scfg->{portal}; | |
223 | ||
7730694e DM |
224 | my $guid = $class->zfs_get_lu_name($scfg, $name); |
225 | my $lun = $class->zfs_get_lun_number($scfg, $guid); | |
3b219e80 | 226 | |
4f914e6e | 227 | my $path = "iscsi://$portal/$target/$lun"; |
3b219e80 | 228 | |
4f914e6e MR |
229 | return ($path, $vmid, $vtype); |
230 | } | |
231 | ||
4f914e6e MR |
232 | sub create_base { |
233 | my ($class, $storeid, $scfg, $volname) = @_; | |
234 | ||
235 | my $snap = '__base__'; | |
236 | ||
237 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
238 | $class->parse_volname($volname); | |
239 | ||
240 | die "create_base not possible with base image\n" if $isBase; | |
241 | ||
242 | my $newname = $name; | |
243 | $newname =~ s/^vm-/base-/; | |
244 | ||
245 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
246 | ||
7730694e DM |
247 | $class->zfs_delete_lu($scfg, $name); |
248 | $class->zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); | |
4f914e6e | 249 | |
7730694e DM |
250 | my $guid = $class->zfs_create_lu($scfg, $newname); |
251 | $class->zfs_add_lun_mapping_entry($scfg, $newname, $guid); | |
4f914e6e MR |
252 | |
253 | my $running = undef; #fixme : is create_base always offline ? | |
254 | ||
255 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
256 | ||
257 | return $newvolname; | |
258 | } | |
259 | ||
260 | sub clone_image { | |
f236eaf8 | 261 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; |
4f914e6e | 262 | |
1993540b | 263 | my $name = $class->SUPER::clone_image($scfg, $storeid, $volname, $vmid, $snap); |
4f914e6e | 264 | |
1993540b FG |
265 | # get ZFS dataset name from PVE volname |
266 | my (undef, $clonedname) = $class->parse_volname($name); | |
267 | ||
268 | my $guid = $class->zfs_create_lu($scfg, $clonedname); | |
269 | $class->zfs_add_lun_mapping_entry($scfg, $clonedname, $guid); | |
4f914e6e MR |
270 | |
271 | return $name; | |
272 | } | |
273 | ||
274 | sub alloc_image { | |
275 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
b3ba95e4 | 276 | |
9b61bc9e WL |
277 | die "unsupported format '$fmt'" if $fmt ne 'raw'; |
278 | ||
279 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
280 | if $name && $name !~ m/^vm-$vmid-/; | |
281 | ||
4eff810d WL |
282 | my $volname = $name; |
283 | ||
9660f716 | 284 | $volname = $class->zfs_find_free_diskname($storeid, $scfg, $vmid, $fmt) if !$volname; |
9b61bc9e | 285 | |
4eff810d | 286 | $class->zfs_create_zvol($scfg, $volname, $size); |
b3ba95e4 WL |
287 | |
288 | my $guid = $class->zfs_create_lu($scfg, $volname); | |
289 | $class->zfs_add_lun_mapping_entry($scfg, $volname, $guid); | |
4f914e6e | 290 | |
b3ba95e4 | 291 | return $volname; |
4f914e6e MR |
292 | } |
293 | ||
294 | sub free_image { | |
295 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
296 | ||
297 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
298 | ||
7730694e | 299 | $class->zfs_delete_lu($scfg, $name); |
6b5bca68 DM |
300 | |
301 | eval { $class->zfs_delete_zvol($scfg, $name); }; | |
302 | if (my $err = $@) { | |
7730694e DM |
303 | my $guid = $class->zfs_create_lu($scfg, $name); |
304 | $class->zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
4f914e6e | 305 | die $err; |
6b5bca68 | 306 | } |
4f914e6e MR |
307 | |
308 | return undef; | |
4f914e6e MR |
309 | } |
310 | ||
4f914e6e MR |
311 | sub volume_resize { |
312 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
a4034b9f WL |
313 | |
314 | my $new_size = $class->SUPER::volume_resize($scfg, $storeid, $volname, $size, $running); | |
4f914e6e | 315 | |
7730694e | 316 | $class->zfs_resize_lu($scfg, $volname, $new_size); |
a4034b9f WL |
317 | |
318 | return $new_size; | |
4f914e6e MR |
319 | } |
320 | ||
27a27646 WL |
321 | sub volume_snapshot_delete { |
322 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
323 | ||
324 | $class->zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$volname\@$snap"); | |
325 | } | |
326 | ||
4f914e6e MR |
327 | sub volume_snapshot_rollback { |
328 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
329 | ||
7730694e | 330 | $class->zfs_delete_lu($scfg, $volname); |
4f914e6e | 331 | |
281f9587 | 332 | $class->zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$volname\@$snap"); |
4f914e6e | 333 | |
7730694e | 334 | $class->zfs_import_lu($scfg, $volname); |
4f914e6e | 335 | |
7730694e | 336 | $class->zfs_add_lun_mapping_entry($scfg, $volname); |
4f914e6e MR |
337 | } |
338 | ||
4f914e6e MR |
339 | sub volume_has_feature { |
340 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
341 | ||
342 | my $features = { | |
6b5bca68 DM |
343 | snapshot => { current => 1, snap => 1}, |
344 | clone => { base => 1}, | |
345 | template => { current => 1}, | |
346 | copy => { base => 1, current => 1}, | |
4f914e6e MR |
347 | }; |
348 | ||
349 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
6b5bca68 | 350 | $class->parse_volname($volname); |
4f914e6e MR |
351 | |
352 | my $key = undef; | |
5332e6c9 DM |
353 | |
354 | if ($snapname) { | |
6b5bca68 | 355 | $key = 'snap'; |
4f914e6e | 356 | } else { |
6b5bca68 | 357 | $key = $isBase ? 'base' : 'current'; |
4f914e6e | 358 | } |
5332e6c9 | 359 | |
4f914e6e MR |
360 | return 1 if $features->{$feature}->{$key}; |
361 | ||
362 | return undef; | |
363 | } | |
364 | ||
aefe82ea | 365 | sub volume_snapshot_list { |
8b622c2d | 366 | my ($class, $scfg, $storeid, $volname) = @_; |
aefe82ea WL |
367 | # return an empty array if dataset does not exist. |
368 | die "Volume_snapshot_list is not implemented for ZFS over iSCSI.\n"; | |
369 | } | |
370 | ||
86d47239 WL |
371 | sub activate_storage { |
372 | my ($class, $storeid, $scfg, $cache) = @_; | |
02e797b8 WL |
373 | |
374 | return 1; | |
375 | } | |
376 | ||
377 | sub deactivate_storage { | |
378 | my ($class, $storeid, $scfg, $cache) = @_; | |
379 | ||
380 | return 1; | |
381 | } | |
382 | ||
383 | sub activate_volume { | |
384 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; | |
385 | ||
386 | die "unable to activate snapshot from remote zfs storage" if $snapname; | |
387 | ||
388 | return 1; | |
389 | } | |
390 | ||
391 | sub deactivate_volume { | |
392 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; | |
393 | ||
394 | die "unable to deactivate snapshot from remote zfs storage" if $snapname; | |
395 | ||
86d47239 WL |
396 | return 1; |
397 | } | |
398 | ||
4f914e6e | 399 | 1; |