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Commit | Line | Data |
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2c3a6c0a DM |
1 | package PVE::AccessControl; |
2 | ||
3 | use strict; | |
7c410d63 | 4 | use warnings; |
2c3a6c0a DM |
5 | use Encode; |
6 | use Crypt::OpenSSL::Random; | |
7 | use Crypt::OpenSSL::RSA; | |
cee5583b | 8 | use Net::SSLeay; |
2c3a6c0a DM |
9 | use MIME::Base64; |
10 | use Digest::SHA; | |
2c3a6c0a DM |
11 | use PVE::Tools qw(run_command lock_file file_get_contents split_list safe_print); |
12 | use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file); | |
13 | use PVE::JSONSchema; | |
5bb4e06a DM |
14 | |
15 | use PVE::Auth::Plugin; | |
16 | use PVE::Auth::AD; | |
17 | use PVE::Auth::LDAP; | |
18 | use PVE::Auth::PVE; | |
19 | use PVE::Auth::PAM; | |
2c3a6c0a DM |
20 | |
21 | use Data::Dumper; # fixme: remove | |
22 | ||
5bb4e06a DM |
23 | # load and initialize all plugins |
24 | ||
25 | PVE::Auth::AD->register(); | |
26 | PVE::Auth::LDAP->register(); | |
27 | PVE::Auth::PVE->register(); | |
28 | PVE::Auth::PAM->register(); | |
29 | PVE::Auth::Plugin->init(); | |
30 | ||
2c3a6c0a DM |
31 | # $authdir must be writable by root only! |
32 | my $confdir = "/etc/pve"; | |
33 | my $authdir = "$confdir/priv"; | |
34 | my $authprivkeyfn = "$authdir/authkey.key"; | |
35 | my $authpubkeyfn = "$confdir/authkey.pub"; | |
2c3a6c0a DM |
36 | my $pve_www_key_fn = "$confdir/pve-www.key"; |
37 | ||
38 | my $ticket_lifetime = 3600*2; # 2 hours | |
39 | ||
40 | Crypt::OpenSSL::RSA->import_random_seed(); | |
41 | ||
42 | cfs_register_file('user.cfg', | |
43 | \&parse_user_config, | |
44 | \&write_user_config); | |
45 | ||
2c3a6c0a | 46 | |
5bb4e06a DM |
47 | sub verify_username { |
48 | PVE::Auth::Plugin::verify_username(@_); | |
2c3a6c0a DM |
49 | } |
50 | ||
5bb4e06a DM |
51 | sub pve_verify_realm { |
52 | PVE::Auth::Plugin::pve_verify_realm(@_); | |
2c3a6c0a DM |
53 | } |
54 | ||
5bb4e06a | 55 | sub lock_user_config { |
2c3a6c0a DM |
56 | my ($code, $errmsg) = @_; |
57 | ||
5bb4e06a DM |
58 | cfs_lock_file("user.cfg", undef, $code); |
59 | if (my $err = $@) { | |
2c3a6c0a DM |
60 | $errmsg ? die "$errmsg: $err" : die $err; |
61 | } | |
62 | } | |
63 | ||
64 | my $pve_auth_pub_key; | |
65 | sub get_pubkey { | |
66 | ||
67 | return $pve_auth_pub_key if $pve_auth_pub_key; | |
68 | ||
69 | my $input = PVE::Tools::file_get_contents($authpubkeyfn); | |
70 | ||
71 | $pve_auth_pub_key = Crypt::OpenSSL::RSA->new_public_key($input); | |
72 | ||
73 | return $pve_auth_pub_key; | |
74 | } | |
75 | ||
76 | my $csrf_prevention_secret; | |
77 | my $get_csrfr_secret = sub { | |
78 | if (!$csrf_prevention_secret) { | |
79 | my $input = PVE::Tools::file_get_contents($pve_www_key_fn); | |
80 | $csrf_prevention_secret = Digest::SHA::sha1_base64($input); | |
81 | } | |
82 | return $csrf_prevention_secret; | |
83 | }; | |
84 | ||
85 | sub assemble_csrf_prevention_token { | |
86 | my ($username) = @_; | |
87 | ||
88 | my $timestamp = sprintf("%08X", time()); | |
89 | ||
90 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
91 | ||
92 | return "$timestamp:$digest"; | |
93 | } | |
94 | ||
95 | sub verify_csrf_prevention_token { | |
96 | my ($username, $token, $noerr) = @_; | |
97 | ||
98 | if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) { | |
99 | my $sig = $2; | |
100 | my $timestamp = $1; | |
101 | my $ttime = hex($timestamp); | |
102 | ||
103 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
104 | ||
105 | my $age = time() - $ttime; | |
106 | return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime); | |
107 | } | |
108 | ||
109 | die "Permission denied - invalid csrf token\n" if !$noerr; | |
110 | ||
111 | return undef; | |
112 | } | |
113 | ||
114 | my $pve_auth_priv_key; | |
115 | sub get_privkey { | |
116 | ||
117 | return $pve_auth_priv_key if $pve_auth_priv_key; | |
118 | ||
119 | my $input = PVE::Tools::file_get_contents($authprivkeyfn); | |
120 | ||
121 | $pve_auth_priv_key = Crypt::OpenSSL::RSA->new_private_key($input); | |
122 | ||
123 | return $pve_auth_priv_key; | |
124 | } | |
125 | ||
126 | sub assemble_ticket { | |
127 | my ($username) = @_; | |
128 | ||
129 | my $rsa_priv = get_privkey(); | |
130 | ||
131 | my $timestamp = sprintf("%08X", time()); | |
132 | ||
133 | my $plain = "PVE:$username:$timestamp"; | |
134 | ||
135 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($plain), ''); | |
136 | ||
137 | return $ticket; | |
138 | } | |
139 | ||
140 | sub verify_ticket { | |
141 | my ($ticket, $noerr) = @_; | |
142 | ||
adf8d771 | 143 | if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) { |
2c3a6c0a DM |
144 | my $plain = $1; |
145 | my $sig = $2; | |
146 | ||
147 | my $rsa_pub = get_pubkey(); | |
148 | if ($rsa_pub->verify($plain, decode_base64($sig))) { | |
533219a1 | 149 | if ($plain =~ m/^PVE:(\S+):([A-Z0-9]{8})$/) { |
2c3a6c0a | 150 | my $username = $1; |
533219a1 | 151 | my $timestamp = $2; |
2c3a6c0a DM |
152 | my $ttime = hex($timestamp); |
153 | ||
154 | my $age = time() - $ttime; | |
155 | ||
5bb4e06a | 156 | if (PVE::Auth::Plugin::verify_username($username, 1) && |
533219a1 | 157 | ($age > -300) && ($age < $ticket_lifetime)) { |
2c3a6c0a DM |
158 | return wantarray ? ($username, $age) : $username; |
159 | } | |
160 | } | |
161 | } | |
162 | } | |
163 | ||
164 | die "permission denied - invalid ticket\n" if !$noerr; | |
165 | ||
166 | return undef; | |
167 | } | |
168 | ||
adf8d771 DM |
169 | # VNC tickets |
170 | # - they do not contain the username in plain text | |
171 | # - they are restricted to a specific resource path (example: '/vms/100') | |
172 | sub assemble_vnc_ticket { | |
173 | my ($username, $path) = @_; | |
174 | ||
175 | my $rsa_priv = get_privkey(); | |
176 | ||
177 | my $timestamp = sprintf("%08X", time()); | |
178 | ||
179 | my $plain = "PVEVNC:$timestamp"; | |
180 | ||
181 | $path = normalize_path($path); | |
182 | ||
183 | my $full = "$plain:$username:$path"; | |
184 | ||
185 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($full), ''); | |
186 | ||
187 | return $ticket; | |
188 | } | |
189 | ||
190 | sub verify_vnc_ticket { | |
191 | my ($ticket, $username, $path, $noerr) = @_; | |
192 | ||
193 | if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) { | |
194 | my $plain = $1; | |
195 | my $sig = $2; | |
196 | my $full = "$plain:$username:$path"; | |
197 | ||
198 | my $rsa_pub = get_pubkey(); | |
199 | # Note: sign only match if $username and $path is correct | |
200 | if ($rsa_pub->verify($full, decode_base64($sig))) { | |
201 | if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) { | |
202 | my $ttime = hex($1); | |
203 | ||
204 | my $age = time() - $ttime; | |
205 | ||
206 | if (($age > -20) && ($age < 40)) { | |
207 | return 1; | |
208 | } | |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | die "permission denied - invalid vnc ticket\n" if !$noerr; | |
214 | ||
215 | return undef; | |
216 | } | |
217 | ||
23b35225 | 218 | sub assemble_spice_ticket { |
bf3e6d31 | 219 | my ($username, $vmid, $node) = @_; |
23b35225 AD |
220 | |
221 | my $rsa_priv = get_privkey(); | |
222 | ||
bf3e6d31 | 223 | my $timestamp = sprintf("%08x", time()); |
23b35225 | 224 | |
bf3e6d31 | 225 | my $randomstr = "PVESPICE:$timestamp:$vmid:$node:" . rand(10); |
23b35225 | 226 | |
bf3e6d31 DM |
227 | # this should be uses as one-time password |
228 | # max length is 60 chars (spice limit) | |
229 | # we pass this to qemu set_pasword and limit lifetime there | |
230 | # keep this secret | |
231 | my $ticket = Digest::SHA::sha1_hex($rsa_priv->sign($randomstr)); | |
23b35225 | 232 | |
bf3e6d31 DM |
233 | # Note: spice proxy connects with HTTP, so $proxyticket is exposed to public |
234 | # we use a signature/timestamp to make sure nobody can fake such ticket | |
235 | # an attacker can use this $proxyticket, but he will fail because $ticket is | |
236 | # private. | |
237 | # The proxy need to be able to extract/verify the ticket | |
238 | # Note: data needs to be lower case only, because virt-viewer needs that | |
3f62bdbe DM |
239 | # Note: RSA signature are too long (>=256 charaters) and makes problems with remote-viewer |
240 | ||
241 | my $secret = &$get_csrfr_secret(); | |
cb442f35 | 242 | my $plain = "pvespiceproxy:$timestamp:$vmid:" . lc($node); |
3f62bdbe DM |
243 | |
244 | # produces 40 characters | |
245 | my $sig = unpack("H*", Digest::SHA::sha1($plain, &$get_csrfr_secret())); | |
246 | ||
247 | #my $sig = unpack("H*", $rsa_priv->sign($plain)); # this produce too long strings (512) | |
23b35225 | 248 | |
bf3e6d31 | 249 | my $proxyticket = $plain . "::" . $sig; |
83d1f13e | 250 | |
bf3e6d31 DM |
251 | return ($ticket, $proxyticket); |
252 | } | |
253 | ||
254 | sub verify_spice_connect_url { | |
255 | my ($connect_str) = @_; | |
256 | ||
257 | # Note: we pass the spice ticket as 'host', so the | |
258 | # spice viewer connects with "$ticket:$port" | |
259 | ||
260 | return undef if !$connect_str; | |
261 | ||
3f62bdbe | 262 | if ($connect_str =~m/^pvespiceproxy:([a-z0-9]{8}):(\d+):(\S+)::([a-z0-9]{40}):(\d+)$/) { |
bf3e6d31 DM |
263 | my ($timestamp, $vmid, $node, $hexsig, $port) = ($1, $2, $3, $4, $5, $6); |
264 | my $ttime = hex($timestamp); | |
265 | my $age = time() - $ttime; | |
266 | ||
267 | # use very limited lifetime - is this enough? | |
268 | return undef if !(($age > -20) && ($age < 40)); | |
269 | ||
bf3e6d31 | 270 | my $plain = "pvespiceproxy:$timestamp:$vmid:$node"; |
3f62bdbe | 271 | my $sig = unpack("H*", Digest::SHA::sha1($plain, &$get_csrfr_secret())); |
bf3e6d31 | 272 | |
3f62bdbe | 273 | if ($sig eq $hexsig) { |
bf3e6d31 DM |
274 | return ($vmid, $node, $port); |
275 | } | |
276 | } | |
277 | ||
278 | return undef; | |
23b35225 AD |
279 | } |
280 | ||
cee5583b DM |
281 | sub read_x509_subject_spice { |
282 | my ($filename) = @_; | |
283 | ||
284 | # read x509 subject | |
285 | my $bio = Net::SSLeay::BIO_new_file($filename, 'r'); | |
286 | my $x509 = Net::SSLeay::PEM_read_bio_X509($bio); | |
287 | Net::SSLeay::BIO_free($bio); | |
288 | my $nameobj = Net::SSLeay::X509_get_subject_name($x509); | |
289 | my $subject = Net::SSLeay::X509_NAME_oneline($nameobj); | |
290 | Net::SSLeay::X509_free($x509); | |
291 | ||
292 | # remote-viewer wants comma as seperator (not '/') | |
293 | $subject =~ s!^/!!; | |
294 | $subject =~ s!/(\w+=)!,$1!g; | |
295 | ||
296 | return $subject; | |
297 | } | |
298 | ||
299 | # helper to generate SPICE remote-viewer configuration | |
300 | sub remote_viewer_config { | |
301 | my ($authuser, $vmid, $node, $proxy, $title, $port) = @_; | |
302 | ||
303 | if (!$proxy) { | |
304 | my $host = `hostname -f` || PVE::INotify::nodename(); | |
305 | chomp $host; | |
306 | $proxy = $host; | |
307 | } | |
308 | ||
309 | my ($ticket, $proxyticket) = assemble_spice_ticket($authuser, $vmid, $node); | |
310 | ||
311 | my $filename = "/etc/pve/local/pve-ssl.pem"; | |
312 | my $subject = read_x509_subject_spice($filename); | |
313 | ||
314 | my $cacert = PVE::Tools::file_get_contents("/etc/pve/pve-root-ca.pem", 8192); | |
315 | $cacert =~ s/\n/\\n/g; | |
dc7573bf | 316 | |
cee5583b | 317 | my $config = { |
dc7573bf LM |
318 | 'secure-attention' => "Ctrl+Alt+Ins", |
319 | 'toggle-fullscreen' => "Shift+F11", | |
320 | 'release-cursor' => "Ctrl+Alt+R", | |
cee5583b DM |
321 | type => 'spice', |
322 | title => $title, | |
323 | host => $proxyticket, # this break tls hostname verification, so we need to use 'host-subject' | |
324 | proxy => "http://$proxy:3128", | |
325 | 'tls-port' => $port, | |
326 | 'host-subject' => $subject, | |
327 | ca => $cacert, | |
328 | password => $ticket, | |
329 | 'delete-this-file' => 1, | |
330 | }; | |
331 | ||
332 | return ($ticket, $proxyticket, $config); | |
333 | } | |
334 | ||
37d45deb | 335 | sub check_user_exist { |
7070c1ae | 336 | my ($usercfg, $username, $noerr) = @_; |
2c3a6c0a | 337 | |
5bb4e06a | 338 | $username = PVE::Auth::Plugin::verify_username($username, $noerr); |
2c3a6c0a DM |
339 | return undef if !$username; |
340 | ||
37d45deb DM |
341 | return $usercfg->{users}->{$username} if $usercfg && $usercfg->{users}->{$username}; |
342 | ||
343 | die "no such user ('$username')\n" if !$noerr; | |
344 | ||
345 | return undef; | |
346 | } | |
347 | ||
348 | sub check_user_enabled { | |
349 | my ($usercfg, $username, $noerr) = @_; | |
350 | ||
351 | my $data = check_user_exist($usercfg, $username, $noerr); | |
352 | return undef if !$data; | |
353 | ||
354 | return 1 if $data->{enable}; | |
2c3a6c0a DM |
355 | |
356 | return 1 if $username eq 'root@pam'; # root is always enabled | |
357 | ||
37d45deb | 358 | die "user '$username' is disabled\n" if !$noerr; |
7070c1ae DM |
359 | |
360 | return undef; | |
2c3a6c0a DM |
361 | } |
362 | ||
363 | # password should be utf8 encoded | |
6126ab75 | 364 | # Note: some pluging delay/sleep if auth fails |
2c3a6c0a DM |
365 | sub authenticate_user { |
366 | my ($username, $password) = @_; | |
367 | ||
368 | die "no username specified\n" if !$username; | |
369 | ||
5bb4e06a | 370 | my ($ruid, $realm); |
2c3a6c0a | 371 | |
5bb4e06a | 372 | ($username, $ruid, $realm) = PVE::Auth::Plugin::verify_username($username); |
2c3a6c0a DM |
373 | |
374 | my $usercfg = cfs_read_file('user.cfg'); | |
375 | ||
6126ab75 | 376 | check_user_enabled($usercfg, $username); |
2c3a6c0a DM |
377 | |
378 | my $ctime = time(); | |
379 | my $expire = $usercfg->{users}->{$username}->{expire}; | |
380 | ||
6126ab75 | 381 | die "account expired\n" if $expire && ($expire < $ctime); |
2c3a6c0a | 382 | |
5bb4e06a | 383 | my $domain_cfg = cfs_read_file('domains.cfg'); |
2c3a6c0a | 384 | |
6126ab75 DM |
385 | my $cfg = $domain_cfg->{ids}->{$realm}; |
386 | die "auth domain '$realm' does not exists\n" if !$cfg; | |
387 | my $plugin = PVE::Auth::Plugin->lookup($cfg->{type}); | |
388 | $plugin->authenticate_user($cfg, $realm, $ruid, $password); | |
2c3a6c0a | 389 | |
5bb4e06a | 390 | return $username; |
2c3a6c0a DM |
391 | } |
392 | ||
393 | sub domain_set_password { | |
5bb4e06a | 394 | my ($realm, $username, $password) = @_; |
2c3a6c0a DM |
395 | |
396 | die "no auth domain specified" if !$realm; | |
397 | ||
5bb4e06a DM |
398 | my $domain_cfg = cfs_read_file('domains.cfg'); |
399 | ||
400 | my $cfg = $domain_cfg->{ids}->{$realm}; | |
401 | die "auth domain '$realm' does not exists\n" if !$cfg; | |
402 | my $plugin = PVE::Auth::Plugin->lookup($cfg->{type}); | |
403 | $plugin->store_password($cfg, $realm, $username, $password); | |
2c3a6c0a DM |
404 | } |
405 | ||
406 | sub add_user_group { | |
407 | ||
408 | my ($username, $usercfg, $group) = @_; | |
409 | $usercfg->{users}->{$username}->{groups}->{$group} = 1; | |
410 | $usercfg->{groups}->{$group}->{users}->{$username} = 1; | |
411 | } | |
412 | ||
413 | sub delete_user_group { | |
414 | ||
415 | my ($username, $usercfg) = @_; | |
416 | ||
417 | foreach my $group (keys %{$usercfg->{groups}}) { | |
418 | ||
419 | delete ($usercfg->{groups}->{$group}->{users}->{$username}) | |
420 | if $usercfg->{groups}->{$group}->{users}->{$username}; | |
421 | } | |
422 | } | |
423 | ||
424 | sub delete_user_acl { | |
425 | ||
426 | my ($username, $usercfg) = @_; | |
427 | ||
428 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
429 | ||
430 | delete ($usercfg->{acl}->{$acl}->{users}->{$username}) | |
431 | if $usercfg->{acl}->{$acl}->{users}->{$username}; | |
432 | } | |
2c3a6c0a | 433 | } |
39c85db8 | 434 | |
2c3a6c0a DM |
435 | sub delete_group_acl { |
436 | ||
437 | my ($group, $usercfg) = @_; | |
438 | ||
439 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
440 | ||
441 | delete ($usercfg->{acl}->{$acl}->{groups}->{$group}) | |
442 | if $usercfg->{acl}->{$acl}->{groups}->{$group}; | |
443 | } | |
39c85db8 DM |
444 | } |
445 | ||
446 | sub delete_pool_acl { | |
447 | ||
448 | my ($pool, $usercfg) = @_; | |
2c3a6c0a | 449 | |
39c85db8 DM |
450 | my $path = "/pool/$pool"; |
451 | ||
452 | foreach my $aclpath (keys %{$usercfg->{acl}}) { | |
453 | delete ($usercfg->{acl}->{$aclpath}) | |
454 | if $usercfg->{acl}->{$aclpath} eq 'path'; | |
455 | } | |
2c3a6c0a DM |
456 | } |
457 | ||
458 | # we automatically create some predefined roles by splitting privs | |
459 | # into 3 groups (per category) | |
460 | # root: only root is allowed to do that | |
461 | # admin: an administrator can to that | |
462 | # user: a normak user/customer can to that | |
463 | my $privgroups = { | |
464 | VM => { | |
465 | root => [], | |
466 | admin => [ | |
c0fead8c | 467 | 'VM.Config.Disk', |
c0fead8c DM |
468 | 'VM.Config.CPU', |
469 | 'VM.Config.Memory', | |
470 | 'VM.Config.Network', | |
471 | 'VM.Config.HWType', | |
472 | 'VM.Config.Options', # covers all other things | |
2c3a6c0a | 473 | 'VM.Allocate', |
7b395f99 | 474 | 'VM.Clone', |
2c3a6c0a | 475 | 'VM.Migrate', |
c0fead8c | 476 | 'VM.Monitor', |
e3e6510c | 477 | 'VM.Snapshot', |
2c3a6c0a DM |
478 | ], |
479 | user => [ | |
cc7bdf33 | 480 | 'VM.Config.CDROM', # change CDROM media |
2c3a6c0a | 481 | 'VM.Console', |
68d5a86d | 482 | 'VM.Backup', |
2c3a6c0a DM |
483 | 'VM.PowerMgmt', |
484 | ], | |
485 | audit => [ | |
82b63965 | 486 | 'VM.Audit', |
2c3a6c0a DM |
487 | ], |
488 | }, | |
489 | Sys => { | |
490 | root => [ | |
491 | 'Sys.PowerMgmt', | |
37d45deb | 492 | 'Sys.Modify', # edit/change node settings |
2c3a6c0a DM |
493 | ], |
494 | admin => [ | |
2e376c58 | 495 | 'Permissions.Modify', |
2c3a6c0a DM |
496 | 'Sys.Console', |
497 | 'Sys.Syslog', | |
498 | ], | |
499 | user => [], | |
500 | audit => [ | |
501 | 'Sys.Audit', | |
502 | ], | |
503 | }, | |
504 | Datastore => { | |
2e376c58 | 505 | root => [], |
19f60b5e DM |
506 | admin => [ |
507 | 'Datastore.Allocate', | |
373cb383 | 508 | 'Datastore.AllocateTemplate', |
19f60b5e | 509 | ], |
2c3a6c0a DM |
510 | user => [ |
511 | 'Datastore.AllocateSpace', | |
512 | ], | |
513 | audit => [ | |
514 | 'Datastore.Audit', | |
515 | ], | |
516 | }, | |
12683df7 | 517 | User => { |
82b63965 DM |
518 | root => [ |
519 | 'Realm.Allocate', | |
520 | ], | |
12683df7 DM |
521 | admin => [ |
522 | 'User.Modify', | |
82b63965 DM |
523 | 'Group.Allocate', # edit/change group settings |
524 | 'Realm.AllocateUser', | |
19f60b5e | 525 | ], |
12683df7 DM |
526 | user => [], |
527 | audit => [], | |
528 | }, | |
dee1c882 DM |
529 | Pool => { |
530 | root => [], | |
531 | admin => [ | |
532 | 'Pool.Allocate', # create/delete pools | |
533 | ], | |
534 | user => [], | |
535 | audit => [], | |
536 | }, | |
2c3a6c0a DM |
537 | }; |
538 | ||
539 | my $valid_privs = {}; | |
540 | ||
541 | my $special_roles = { | |
542 | 'NoAccess' => {}, # no priviledges | |
543 | 'Administrator' => $valid_privs, # all priviledges | |
544 | }; | |
545 | ||
546 | sub create_roles { | |
547 | ||
548 | foreach my $cat (keys %$privgroups) { | |
549 | my $cd = $privgroups->{$cat}; | |
550 | foreach my $p (@{$cd->{root}}, @{$cd->{admin}}, | |
551 | @{$cd->{user}}, @{$cd->{audit}}) { | |
552 | $valid_privs->{$p} = 1; | |
553 | } | |
554 | foreach my $p (@{$cd->{admin}}, @{$cd->{user}}, @{$cd->{audit}}) { | |
555 | ||
556 | $special_roles->{"PVE${cat}Admin"}->{$p} = 1; | |
557 | $special_roles->{"PVEAdmin"}->{$p} = 1; | |
558 | } | |
559 | if (scalar(@{$cd->{user}})) { | |
560 | foreach my $p (@{$cd->{user}}, @{$cd->{audit}}) { | |
561 | $special_roles->{"PVE${cat}User"}->{$p} = 1; | |
562 | } | |
563 | } | |
564 | foreach my $p (@{$cd->{audit}}) { | |
565 | $special_roles->{"PVEAuditor"}->{$p} = 1; | |
566 | } | |
567 | } | |
ff4b2235 | 568 | |
7b395f99 | 569 | $special_roles->{"PVETemplateUser"} = { 'VM.Clone' => 1, 'VM.Audit' => 1 }; |
2c3a6c0a DM |
570 | }; |
571 | ||
572 | create_roles(); | |
573 | ||
2c3a6c0a DM |
574 | sub add_role_privs { |
575 | my ($role, $usercfg, $privs) = @_; | |
576 | ||
577 | return if !$privs; | |
578 | ||
579 | die "role '$role' does not exist\n" if !$usercfg->{roles}->{$role}; | |
580 | ||
581 | foreach my $priv (split_list($privs)) { | |
582 | if (defined ($valid_privs->{$priv})) { | |
583 | $usercfg->{roles}->{$role}->{$priv} = 1; | |
584 | } else { | |
585 | die "invalid priviledge '$priv'\n"; | |
586 | } | |
587 | } | |
588 | } | |
589 | ||
590 | sub normalize_path { | |
591 | my $path = shift; | |
592 | ||
4bc17477 | 593 | $path =~ s|/+|/|g; |
2c3a6c0a DM |
594 | |
595 | $path =~ s|/$||; | |
596 | ||
597 | $path = '/' if !$path; | |
598 | ||
4bc17477 DM |
599 | $path = "/$path" if $path !~ m|^/|; |
600 | ||
e4f8fc2e | 601 | return undef if $path !~ m|^[[:alnum:]\.\-\_\/]+$|; |
2c3a6c0a DM |
602 | |
603 | return $path; | |
604 | } | |
605 | ||
2c3a6c0a DM |
606 | |
607 | PVE::JSONSchema::register_format('pve-groupid', \&verify_groupname); | |
608 | sub verify_groupname { | |
609 | my ($groupname, $noerr) = @_; | |
610 | ||
611 | if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
612 | ||
613 | die "group name '$groupname' contains invalid characters\n" if !$noerr; | |
614 | ||
615 | return undef; | |
616 | } | |
617 | ||
618 | return $groupname; | |
619 | } | |
620 | ||
621 | PVE::JSONSchema::register_format('pve-roleid', \&verify_rolename); | |
622 | sub verify_rolename { | |
623 | my ($rolename, $noerr) = @_; | |
624 | ||
625 | if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
626 | ||
627 | die "role name '$rolename' contains invalid characters\n" if !$noerr; | |
628 | ||
629 | return undef; | |
630 | } | |
631 | ||
632 | return $rolename; | |
633 | } | |
634 | ||
39c85db8 DM |
635 | PVE::JSONSchema::register_format('pve-poolid', \&verify_groupname); |
636 | sub verify_poolname { | |
637 | my ($poolname, $noerr) = @_; | |
638 | ||
639 | if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
640 | ||
641 | die "pool name '$poolname' contains invalid characters\n" if !$noerr; | |
642 | ||
643 | return undef; | |
644 | } | |
645 | ||
646 | return $poolname; | |
647 | } | |
648 | ||
2c3a6c0a DM |
649 | PVE::JSONSchema::register_format('pve-priv', \&verify_privname); |
650 | sub verify_privname { | |
651 | my ($priv, $noerr) = @_; | |
652 | ||
653 | if (!$valid_privs->{$priv}) { | |
654 | die "invalid priviledge '$priv'\n" if !$noerr; | |
655 | ||
656 | return undef; | |
657 | } | |
658 | ||
659 | return $priv; | |
660 | } | |
661 | ||
662 | sub userconfig_force_defaults { | |
663 | my ($cfg) = @_; | |
664 | ||
665 | foreach my $r (keys %$special_roles) { | |
666 | $cfg->{roles}->{$r} = $special_roles->{$r}; | |
667 | } | |
668 | ||
669 | # fixme: remove 'root' group (not required)? | |
670 | ||
671 | # add root user | |
672 | $cfg->{users}->{'root@pam'}->{enable} = 1; | |
673 | } | |
674 | ||
675 | sub parse_user_config { | |
676 | my ($filename, $raw) = @_; | |
677 | ||
678 | my $cfg = {}; | |
679 | ||
680 | userconfig_force_defaults($cfg); | |
681 | ||
682 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
683 | my $line = $1; | |
684 | ||
685 | next if $line =~ m/^\s*$/; # skip empty lines | |
686 | ||
687 | my @data; | |
688 | ||
689 | foreach my $d (split (/:/, $line)) { | |
690 | $d =~ s/^\s+//; | |
691 | $d =~ s/\s+$//; | |
692 | push @data, $d | |
693 | } | |
694 | ||
695 | my $et = shift @data; | |
696 | ||
697 | if ($et eq 'user') { | |
698 | my ($user, $enable, $expire, $firstname, $lastname, $email, $comment) = @data; | |
699 | ||
5bb4e06a | 700 | my (undef, undef, $realm) = PVE::Auth::Plugin::verify_username($user, 1); |
2c3a6c0a DM |
701 | if (!$realm) { |
702 | warn "user config - ignore user '$user' - invalid user name\n"; | |
703 | next; | |
704 | } | |
705 | ||
706 | $enable = $enable ? 1 : 0; | |
707 | ||
708 | $expire = 0 if !$expire; | |
709 | ||
710 | if ($expire !~ m/^\d+$/) { | |
711 | warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n"; | |
712 | next; | |
713 | } | |
714 | $expire = int($expire); | |
715 | ||
716 | #if (!verify_groupname ($group, 1)) { | |
717 | # warn "user config - ignore user '$user' - invalid characters in group name\n"; | |
718 | # next; | |
719 | #} | |
720 | ||
721 | $cfg->{users}->{$user} = { | |
722 | enable => $enable, | |
723 | # group => $group, | |
724 | }; | |
725 | $cfg->{users}->{$user}->{firstname} = PVE::Tools::decode_text($firstname) if $firstname; | |
726 | $cfg->{users}->{$user}->{lastname} = PVE::Tools::decode_text($lastname) if $lastname; | |
727 | $cfg->{users}->{$user}->{email} = $email; | |
728 | $cfg->{users}->{$user}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
729 | $cfg->{users}->{$user}->{expire} = $expire; | |
730 | ||
731 | #$cfg->{users}->{$user}->{groups}->{$group} = 1; | |
732 | #$cfg->{groups}->{$group}->{$user} = 1; | |
733 | ||
734 | } elsif ($et eq 'group') { | |
735 | my ($group, $userlist, $comment) = @data; | |
736 | ||
737 | if (!verify_groupname($group, 1)) { | |
738 | warn "user config - ignore group '$group' - invalid characters in group name\n"; | |
739 | next; | |
740 | } | |
741 | ||
742 | # make sure to add the group (even if there are no members) | |
743 | $cfg->{groups}->{$group} = { users => {} } if !$cfg->{groups}->{$group}; | |
744 | ||
745 | $cfg->{groups}->{$group}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
746 | ||
747 | foreach my $user (split_list($userlist)) { | |
748 | ||
5bb4e06a | 749 | if (!PVE::Auth::Plugin::verify_username($user, 1)) { |
2c3a6c0a DM |
750 | warn "user config - ignore invalid group member '$user'\n"; |
751 | next; | |
752 | } | |
753 | ||
754 | if ($cfg->{users}->{$user}) { # user exists | |
755 | $cfg->{users}->{$user}->{groups}->{$group} = 1; | |
756 | $cfg->{groups}->{$group}->{users}->{$user} = 1; | |
757 | } else { | |
758 | warn "user config - ignore invalid group member '$user'\n"; | |
759 | } | |
760 | } | |
761 | ||
762 | } elsif ($et eq 'role') { | |
763 | my ($role, $privlist) = @data; | |
764 | ||
765 | if (!verify_rolename($role, 1)) { | |
766 | warn "user config - ignore role '$role' - invalid characters in role name\n"; | |
767 | next; | |
768 | } | |
769 | ||
770 | # make sure to add the role (even if there are no privileges) | |
771 | $cfg->{roles}->{$role} = {} if !$cfg->{roles}->{$role}; | |
772 | ||
773 | foreach my $priv (split_list($privlist)) { | |
774 | if (defined ($valid_privs->{$priv})) { | |
775 | $cfg->{roles}->{$role}->{$priv} = 1; | |
776 | } else { | |
777 | warn "user config - ignore invalid priviledge '$priv'\n"; | |
778 | } | |
779 | } | |
780 | ||
781 | } elsif ($et eq 'acl') { | |
782 | my ($propagate, $pathtxt, $uglist, $rolelist) = @data; | |
783 | ||
784 | if (my $path = normalize_path($pathtxt)) { | |
785 | foreach my $role (split_list($rolelist)) { | |
786 | ||
787 | if (!verify_rolename($role, 1)) { | |
788 | warn "user config - ignore invalid role name '$role' in acl\n"; | |
789 | next; | |
790 | } | |
791 | ||
792 | foreach my $ug (split_list($uglist)) { | |
9b217226 | 793 | if ($ug =~ m/^@(\S+)$/) { |
2c3a6c0a DM |
794 | my $group = $1; |
795 | if ($cfg->{groups}->{$group}) { # group exists | |
796 | $cfg->{acl}->{$path}->{groups}->{$group}->{$role} = $propagate; | |
797 | } else { | |
798 | warn "user config - ignore invalid acl group '$group'\n"; | |
799 | } | |
5bb4e06a | 800 | } elsif (PVE::Auth::Plugin::verify_username($ug, 1)) { |
2c3a6c0a DM |
801 | if ($cfg->{users}->{$ug}) { # user exists |
802 | $cfg->{acl}->{$path}->{users}->{$ug}->{$role} = $propagate; | |
803 | } else { | |
804 | warn "user config - ignore invalid acl member '$ug'\n"; | |
805 | } | |
806 | } else { | |
807 | warn "user config - invalid user/group '$ug' in acl\n"; | |
808 | } | |
809 | } | |
810 | } | |
811 | } else { | |
812 | warn "user config - ignore invalid path in acl '$pathtxt'\n"; | |
813 | } | |
4bc17477 | 814 | } elsif ($et eq 'pool') { |
39c85db8 | 815 | my ($pool, $comment, $vmlist, $storelist) = @data; |
4bc17477 | 816 | |
39c85db8 DM |
817 | if (!verify_poolname($pool, 1)) { |
818 | warn "user config - ignore pool '$pool' - invalid characters in pool name\n"; | |
819 | next; | |
820 | } | |
4bc17477 | 821 | |
39c85db8 DM |
822 | # make sure to add the pool (even if there are no members) |
823 | $cfg->{pools}->{$pool} = { vms => {}, storage => {} } if !$cfg->{pools}->{$pool}; | |
4bc17477 | 824 | |
39c85db8 | 825 | $cfg->{pools}->{$pool}->{comment} = PVE::Tools::decode_text($comment) if $comment; |
4bc17477 | 826 | |
39c85db8 DM |
827 | foreach my $vmid (split_list($vmlist)) { |
828 | if ($vmid !~ m/^\d+$/) { | |
829 | warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n"; | |
830 | next; | |
4bc17477 | 831 | } |
39c85db8 | 832 | $vmid = int($vmid); |
4bc17477 | 833 | |
39c85db8 DM |
834 | if ($cfg->{vms}->{$vmid}) { |
835 | warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n"; | |
836 | next; | |
4bc17477 DM |
837 | } |
838 | ||
39c85db8 DM |
839 | $cfg->{pools}->{$pool}->{vms}->{$vmid} = 1; |
840 | ||
841 | # record vmid ==> pool relation | |
842 | $cfg->{vms}->{$vmid} = $pool; | |
843 | } | |
844 | ||
845 | foreach my $storeid (split_list($storelist)) { | |
846 | if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
847 | warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n"; | |
848 | next; | |
849 | } | |
850 | $cfg->{pools}->{$pool}->{storage}->{$storeid} = 1; | |
4bc17477 | 851 | } |
2c3a6c0a DM |
852 | } else { |
853 | warn "user config - ignore config line: $line\n"; | |
854 | } | |
855 | } | |
856 | ||
857 | userconfig_force_defaults($cfg); | |
858 | ||
859 | return $cfg; | |
860 | } | |
861 | ||
2c3a6c0a DM |
862 | sub write_user_config { |
863 | my ($filename, $cfg) = @_; | |
864 | ||
865 | my $data = ''; | |
866 | ||
867 | foreach my $user (keys %{$cfg->{users}}) { | |
2c3a6c0a DM |
868 | my $d = $cfg->{users}->{$user}; |
869 | my $firstname = $d->{firstname} ? PVE::Tools::encode_text($d->{firstname}) : ''; | |
870 | my $lastname = $d->{lastname} ? PVE::Tools::encode_text($d->{lastname}) : ''; | |
871 | my $email = $d->{email} || ''; | |
872 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
5eabc984 | 873 | my $expire = int($d->{expire} || 0); |
2c3a6c0a DM |
874 | my $enable = $d->{enable} ? 1 : 0; |
875 | $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:\n"; | |
876 | } | |
877 | ||
878 | $data .= "\n"; | |
879 | ||
880 | foreach my $group (keys %{$cfg->{groups}}) { | |
881 | my $d = $cfg->{groups}->{$group}; | |
882 | my $list = join (',', keys %{$d->{users}}); | |
883 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
884 | $data .= "group:$group:$list:$comment:\n"; | |
885 | } | |
886 | ||
887 | $data .= "\n"; | |
888 | ||
39c85db8 DM |
889 | foreach my $pool (keys %{$cfg->{pools}}) { |
890 | my $d = $cfg->{pools}->{$pool}; | |
4bc17477 DM |
891 | my $vmlist = join (',', keys %{$d->{vms}}); |
892 | my $storelist = join (',', keys %{$d->{storage}}); | |
893 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
39c85db8 | 894 | $data .= "pool:$pool:$comment:$vmlist:$storelist:\n"; |
4bc17477 DM |
895 | } |
896 | ||
897 | $data .= "\n"; | |
898 | ||
2c3a6c0a DM |
899 | foreach my $role (keys %{$cfg->{roles}}) { |
900 | next if $special_roles->{$role}; | |
901 | ||
902 | my $d = $cfg->{roles}->{$role}; | |
903 | my $list = join (',', keys %$d); | |
904 | $data .= "role:$role:$list:\n"; | |
905 | } | |
906 | ||
907 | $data .= "\n"; | |
908 | ||
909 | foreach my $path (sort keys %{$cfg->{acl}}) { | |
910 | my $d = $cfg->{acl}->{$path}; | |
911 | ||
912 | my $ra = {}; | |
913 | ||
914 | foreach my $group (keys %{$d->{groups}}) { | |
915 | my $l0 = ''; | |
916 | my $l1 = ''; | |
917 | foreach my $role (sort keys %{$d->{groups}->{$group}}) { | |
918 | my $propagate = $d->{groups}->{$group}->{$role}; | |
919 | if ($propagate) { | |
920 | $l1 .= ',' if $l1; | |
921 | $l1 .= $role; | |
922 | } else { | |
923 | $l0 .= ',' if $l0; | |
924 | $l0 .= $role; | |
925 | } | |
926 | } | |
927 | $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0; | |
928 | $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1; | |
929 | } | |
930 | ||
931 | foreach my $user (keys %{$d->{users}}) { | |
932 | # no need to save, because root is always 'Administartor' | |
933 | next if $user eq 'root@pam'; | |
934 | ||
935 | my $l0 = ''; | |
936 | my $l1 = ''; | |
937 | foreach my $role (sort keys %{$d->{users}->{$user}}) { | |
938 | my $propagate = $d->{users}->{$user}->{$role}; | |
939 | if ($propagate) { | |
940 | $l1 .= ',' if $l1; | |
941 | $l1 .= $role; | |
942 | } else { | |
943 | $l0 .= ',' if $l0; | |
944 | $l0 .= $role; | |
945 | } | |
946 | } | |
947 | $ra->{0}->{$l0}->{$user} = 1 if $l0; | |
948 | $ra->{1}->{$l1}->{$user} = 1 if $l1; | |
949 | } | |
950 | ||
951 | foreach my $rolelist (sort keys %{$ra->{0}}) { | |
952 | my $uglist = join (',', keys %{$ra->{0}->{$rolelist}}); | |
953 | $data .= "acl:0:$path:$uglist:$rolelist:\n"; | |
954 | } | |
955 | foreach my $rolelist (sort keys %{$ra->{1}}) { | |
956 | my $uglist = join (',', keys %{$ra->{1}->{$rolelist}}); | |
957 | $data .= "acl:1:$path:$uglist:$rolelist:\n"; | |
958 | } | |
959 | } | |
960 | ||
961 | return $data; | |
962 | } | |
963 | ||
964 | sub roles { | |
965 | my ($cfg, $user, $path) = @_; | |
966 | ||
4bc17477 DM |
967 | # NOTE: we do not consider pools here. |
968 | # You need to use $rpcenv->roles() instead if you want that. | |
969 | ||
2c3a6c0a DM |
970 | return 'Administrator' if $user eq 'root@pam'; # root can do anything |
971 | ||
972 | my $perm = {}; | |
973 | ||
974 | foreach my $p (sort keys %{$cfg->{acl}}) { | |
975 | my $final = ($path eq $p); | |
976 | ||
977 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); | |
978 | ||
979 | my $acl = $cfg->{acl}->{$p}; | |
980 | ||
981 | #print "CHECKACL $path $p\n"; | |
982 | #print "ACL $path = " . Dumper ($acl); | |
983 | ||
984 | if (my $ri = $acl->{users}->{$user}) { | |
985 | my $new; | |
986 | foreach my $role (keys %$ri) { | |
987 | my $propagate = $ri->{$role}; | |
988 | if ($final || $propagate) { | |
989 | #print "APPLY ROLE $p $user $role\n"; | |
990 | $new = {} if !$new; | |
991 | $new->{$role} = 1; | |
992 | } | |
993 | } | |
994 | if ($new) { | |
995 | $perm = $new; # overwrite previous settings | |
996 | next; # user privs always override group privs | |
997 | } | |
998 | } | |
999 | ||
1000 | my $new; | |
1001 | foreach my $g (keys %{$acl->{groups}}) { | |
1002 | next if !$cfg->{groups}->{$g}->{users}->{$user}; | |
1003 | if (my $ri = $acl->{groups}->{$g}) { | |
1004 | foreach my $role (keys %$ri) { | |
1005 | my $propagate = $ri->{$role}; | |
1006 | if ($final || $propagate) { | |
1007 | #print "APPLY ROLE $p \@$g $role\n"; | |
1008 | $new = {} if !$new; | |
1009 | $new->{$role} = 1; | |
1010 | } | |
1011 | } | |
1012 | } | |
1013 | } | |
1014 | if ($new) { | |
1015 | $perm = $new; # overwrite previous settings | |
1016 | next; | |
1017 | } | |
2c3a6c0a DM |
1018 | } |
1019 | ||
4bc17477 DM |
1020 | return ('NoAccess') if defined ($perm->{NoAccess}); |
1021 | #return () if defined ($perm->{NoAccess}); | |
2c3a6c0a DM |
1022 | |
1023 | #print "permission $user $path = " . Dumper ($perm); | |
1024 | ||
4bc17477 | 1025 | my @ra = keys %$perm; |
2c3a6c0a DM |
1026 | |
1027 | #print "roles $user $path = " . join (',', @ra) . "\n"; | |
1028 | ||
1029 | return @ra; | |
1030 | } | |
1031 | ||
1032 | sub permission { | |
1033 | my ($cfg, $user, $path) = @_; | |
1034 | ||
5bb4e06a | 1035 | $user = PVE::Auth::Plugin::verify_username($user, 1); |
2c3a6c0a DM |
1036 | return {} if !$user; |
1037 | ||
1038 | my @ra = roles($cfg, $user, $path); | |
1039 | ||
1040 | my $privs = {}; | |
1041 | ||
1042 | foreach my $role (@ra) { | |
1043 | if (my $privset = $cfg->{roles}->{$role}) { | |
1044 | foreach my $p (keys %$privset) { | |
1045 | $privs->{$p} = 1; | |
1046 | } | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | #print "priviledges $user $path = " . Dumper ($privs); | |
1051 | ||
1052 | return $privs; | |
1053 | } | |
1054 | ||
1055 | sub check_permissions { | |
1056 | my ($username, $path, $privlist) = @_; | |
1057 | ||
1058 | $path = normalize_path($path); | |
1059 | my $usercfg = cfs_read_file('user.cfg'); | |
1060 | my $perm = permission($usercfg, $username, $path); | |
1061 | ||
1062 | foreach my $priv (split_list($privlist)) { | |
1063 | return undef if !$perm->{$priv}; | |
1064 | }; | |
1065 | ||
1066 | return 1; | |
1067 | } | |
1068 | ||
018ae3a9 DM |
1069 | sub add_vm_to_pool { |
1070 | my ($vmid, $pool) = @_; | |
1071 | ||
1072 | my $addVMtoPoolFn = sub { | |
1073 | my $usercfg = cfs_read_file("user.cfg"); | |
1074 | if (my $data = $usercfg->{pools}->{$pool}) { | |
1075 | $data->{vms}->{$vmid} = 1; | |
1076 | $usercfg->{vms}->{$vmid} = $pool; | |
1077 | cfs_write_file("user.cfg", $usercfg); | |
1078 | } | |
1079 | }; | |
1080 | ||
1081 | lock_user_config($addVMtoPoolFn, "can't add VM $vmid to pool '$pool'"); | |
1082 | } | |
1083 | ||
1084 | sub remove_vm_from_pool { | |
1085 | my ($vmid) = @_; | |
1086 | ||
1087 | my $delVMfromPoolFn = sub { | |
1088 | my $usercfg = cfs_read_file("user.cfg"); | |
1089 | if (my $pool = $usercfg->{vms}->{$vmid}) { | |
1090 | if (my $data = $usercfg->{pools}->{$pool}) { | |
1091 | delete $data->{vms}->{$vmid}; | |
1092 | delete $usercfg->{vms}->{$vmid}; | |
1093 | cfs_write_file("user.cfg", $usercfg); | |
1094 | } | |
1095 | } | |
1096 | }; | |
1097 | ||
1098 | lock_user_config($delVMfromPoolFn, "pool cleanup for VM $vmid failed"); | |
1099 | } | |
1100 | ||
2c3a6c0a | 1101 | 1; |