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1 | package PVE::AccessControl; | |
2 | ||
3 | use strict; | |
4 | use Encode; | |
5 | use Crypt::OpenSSL::Random; | |
6 | use Crypt::OpenSSL::RSA; | |
7 | use MIME::Base64; | |
8 | use Digest::SHA; | |
9 | use Authen::PAM qw(:constants); | |
10 | use Net::LDAP; | |
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; | |
14 | use Encode; | |
15 | ||
16 | use Data::Dumper; # fixme: remove | |
17 | ||
18 | # $authdir must be writable by root only! | |
19 | my $confdir = "/etc/pve"; | |
20 | my $authdir = "$confdir/priv"; | |
21 | my $authprivkeyfn = "$authdir/authkey.key"; | |
22 | my $authpubkeyfn = "$confdir/authkey.pub"; | |
23 | my $shadowconfigfile = "priv/shadow.cfg"; | |
24 | my $domainconfigfile = "domains.cfg"; | |
25 | my $pve_www_key_fn = "$confdir/pve-www.key"; | |
26 | ||
27 | my $ticket_lifetime = 3600*2; # 2 hours | |
28 | ||
29 | Crypt::OpenSSL::RSA->import_random_seed(); | |
30 | ||
31 | cfs_register_file('user.cfg', | |
32 | \&parse_user_config, | |
33 | \&write_user_config); | |
34 | ||
35 | cfs_register_file($shadowconfigfile, | |
36 | \&parse_shadow_passwd, | |
37 | \&write_shadow_config); | |
38 | ||
39 | cfs_register_file($domainconfigfile, | |
40 | \&parse_domains, | |
41 | \&write_domains); | |
42 | ||
43 | ||
44 | sub lock_user_config { | |
45 | my ($code, $errmsg) = @_; | |
46 | ||
47 | cfs_lock_file("user.cfg", undef, $code); | |
48 | my $err = $@; | |
49 | if ($err) { | |
50 | $errmsg ? die "$errmsg: $err" : die $err; | |
51 | } | |
52 | } | |
53 | ||
54 | sub lock_domain_config { | |
55 | my ($code, $errmsg) = @_; | |
56 | ||
57 | cfs_lock_file($domainconfigfile, undef, $code); | |
58 | my $err = $@; | |
59 | if ($err) { | |
60 | $errmsg ? die "$errmsg: $err" : die $err; | |
61 | } | |
62 | } | |
63 | ||
64 | sub lock_shadow_config { | |
65 | my ($code, $errmsg) = @_; | |
66 | ||
67 | cfs_lock_file($shadowconfigfile, undef, $code); | |
68 | my $err = $@; | |
69 | if ($err) { | |
70 | $errmsg ? die "$errmsg: $err" : die $err; | |
71 | } | |
72 | } | |
73 | ||
74 | my $pve_auth_pub_key; | |
75 | sub get_pubkey { | |
76 | ||
77 | return $pve_auth_pub_key if $pve_auth_pub_key; | |
78 | ||
79 | my $input = PVE::Tools::file_get_contents($authpubkeyfn); | |
80 | ||
81 | $pve_auth_pub_key = Crypt::OpenSSL::RSA->new_public_key($input); | |
82 | ||
83 | return $pve_auth_pub_key; | |
84 | } | |
85 | ||
86 | my $csrf_prevention_secret; | |
87 | my $get_csrfr_secret = sub { | |
88 | if (!$csrf_prevention_secret) { | |
89 | my $input = PVE::Tools::file_get_contents($pve_www_key_fn); | |
90 | $csrf_prevention_secret = Digest::SHA::sha1_base64($input); | |
91 | } | |
92 | return $csrf_prevention_secret; | |
93 | }; | |
94 | ||
95 | sub assemble_csrf_prevention_token { | |
96 | my ($username) = @_; | |
97 | ||
98 | my $timestamp = sprintf("%08X", time()); | |
99 | ||
100 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
101 | ||
102 | return "$timestamp:$digest"; | |
103 | } | |
104 | ||
105 | sub verify_csrf_prevention_token { | |
106 | my ($username, $token, $noerr) = @_; | |
107 | ||
108 | if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) { | |
109 | my $sig = $2; | |
110 | my $timestamp = $1; | |
111 | my $ttime = hex($timestamp); | |
112 | ||
113 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
114 | ||
115 | my $age = time() - $ttime; | |
116 | return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime); | |
117 | } | |
118 | ||
119 | die "Permission denied - invalid csrf token\n" if !$noerr; | |
120 | ||
121 | return undef; | |
122 | } | |
123 | ||
124 | my $pve_auth_priv_key; | |
125 | sub get_privkey { | |
126 | ||
127 | return $pve_auth_priv_key if $pve_auth_priv_key; | |
128 | ||
129 | my $input = PVE::Tools::file_get_contents($authprivkeyfn); | |
130 | ||
131 | $pve_auth_priv_key = Crypt::OpenSSL::RSA->new_private_key($input); | |
132 | ||
133 | return $pve_auth_priv_key; | |
134 | } | |
135 | ||
136 | sub assemble_ticket { | |
137 | my ($username) = @_; | |
138 | ||
139 | my $rsa_priv = get_privkey(); | |
140 | ||
141 | my $timestamp = sprintf("%08X", time()); | |
142 | ||
143 | my $plain = "PVE:$username:$timestamp"; | |
144 | ||
145 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($plain), ''); | |
146 | ||
147 | return $ticket; | |
148 | } | |
149 | ||
150 | sub verify_ticket { | |
151 | my ($ticket, $noerr) = @_; | |
152 | ||
153 | if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) { | |
154 | my $plain = $1; | |
155 | my $sig = $2; | |
156 | ||
157 | my $rsa_pub = get_pubkey(); | |
158 | if ($rsa_pub->verify($plain, decode_base64($sig))) { | |
159 | if ($plain =~ m/^PVE:(\S+):([A-Z0-9]{8})$/) { | |
160 | my $username = $1; | |
161 | my $timestamp = $2; | |
162 | my $ttime = hex($timestamp); | |
163 | ||
164 | my $age = time() - $ttime; | |
165 | ||
166 | if (verify_username($username, 1) && | |
167 | ($age > -300) && ($age < $ticket_lifetime)) { | |
168 | return wantarray ? ($username, $age) : $username; | |
169 | } | |
170 | } | |
171 | } | |
172 | } | |
173 | ||
174 | die "permission denied - invalid ticket\n" if !$noerr; | |
175 | ||
176 | return undef; | |
177 | } | |
178 | ||
179 | # VNC tickets | |
180 | # - they do not contain the username in plain text | |
181 | # - they are restricted to a specific resource path (example: '/vms/100') | |
182 | sub assemble_vnc_ticket { | |
183 | my ($username, $path) = @_; | |
184 | ||
185 | my $rsa_priv = get_privkey(); | |
186 | ||
187 | my $timestamp = sprintf("%08X", time()); | |
188 | ||
189 | my $plain = "PVEVNC:$timestamp"; | |
190 | ||
191 | $path = normalize_path($path); | |
192 | ||
193 | my $full = "$plain:$username:$path"; | |
194 | ||
195 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($full), ''); | |
196 | ||
197 | return $ticket; | |
198 | } | |
199 | ||
200 | sub verify_vnc_ticket { | |
201 | my ($ticket, $username, $path, $noerr) = @_; | |
202 | ||
203 | if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) { | |
204 | my $plain = $1; | |
205 | my $sig = $2; | |
206 | my $full = "$plain:$username:$path"; | |
207 | ||
208 | my $rsa_pub = get_pubkey(); | |
209 | # Note: sign only match if $username and $path is correct | |
210 | if ($rsa_pub->verify($full, decode_base64($sig))) { | |
211 | if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) { | |
212 | my $ttime = hex($1); | |
213 | ||
214 | my $age = time() - $ttime; | |
215 | ||
216 | if (($age > -20) && ($age < 40)) { | |
217 | return 1; | |
218 | } | |
219 | } | |
220 | } | |
221 | } | |
222 | ||
223 | die "permission denied - invalid vnc ticket\n" if !$noerr; | |
224 | ||
225 | return undef; | |
226 | } | |
227 | ||
228 | ||
229 | sub authenticate_user_shadow { | |
230 | my ($userid, $password) = @_; | |
231 | ||
232 | die "no password\n" if !$password; | |
233 | ||
234 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
235 | ||
236 | if ($shadow_cfg->{users}->{$userid}) { | |
237 | my $encpw = crypt($password, $shadow_cfg->{users}->{$userid}->{shadow}); | |
238 | die "invalid credentials\n" if ($encpw ne $shadow_cfg->{users}->{$userid}->{shadow}); | |
239 | } else { | |
240 | die "no password set\n"; | |
241 | } | |
242 | } | |
243 | ||
244 | sub authenticate_user_pam { | |
245 | my ($userid, $password) = @_; | |
246 | ||
247 | # user (www-data) need to be able to read /etc/passwd /etc/shadow | |
248 | ||
249 | die "no password\n" if !$password; | |
250 | ||
251 | my $pamh = new Authen::PAM ('common-auth', $userid, sub { | |
252 | my @res; | |
253 | while(@_) { | |
254 | my $msg_type = shift; | |
255 | my $msg = shift; | |
256 | push @res, (0, $password); | |
257 | } | |
258 | push @res, 0; | |
259 | return @res; | |
260 | }); | |
261 | ||
262 | if (!ref ($pamh)) { | |
263 | my $err = $pamh->pam_strerror($pamh); | |
264 | die "error during PAM init: $err"; | |
265 | } | |
266 | ||
267 | my $res; | |
268 | ||
269 | if (($res = $pamh->pam_authenticate(0)) != PAM_SUCCESS) { | |
270 | my $err = $pamh->pam_strerror($res); | |
271 | die "$err\n"; | |
272 | } | |
273 | ||
274 | if (($res = $pamh->pam_acct_mgmt (0)) != PAM_SUCCESS) { | |
275 | my $err = $pamh->pam_strerror($res); | |
276 | die "$err\n"; | |
277 | } | |
278 | ||
279 | $pamh = 0; # call destructor | |
280 | } | |
281 | ||
282 | sub authenticate_user_ad { | |
283 | ||
284 | my ($entry, $server, $userid, $password) = @_; | |
285 | ||
286 | my $default_port = $entry->{secure} ? 636: 389; | |
287 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
288 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
289 | my $conn_string = "$scheme://${server}:$port"; | |
290 | ||
291 | my $ldap = Net::LDAP->new($server) || die "$@\n"; | |
292 | ||
293 | $userid = "$userid\@$entry->{domain}" | |
294 | if $userid !~ m/@/ && $entry->{domain}; | |
295 | ||
296 | my $res = $ldap->bind($userid, password => $password); | |
297 | ||
298 | my $code = $res->code(); | |
299 | my $err = $res->error; | |
300 | ||
301 | $ldap->unbind(); | |
302 | ||
303 | die "$err\n" if ($code); | |
304 | } | |
305 | ||
306 | sub authenticate_user_ldap { | |
307 | ||
308 | my ($entry, $server, $userid, $password) = @_; | |
309 | ||
310 | my $default_port = $entry->{secure} ? 636: 389; | |
311 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
312 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
313 | my $conn_string = "$scheme://${server}:$port"; | |
314 | ||
315 | my $ldap = Net::LDAP->new($conn_string, verify => 'none') || die "$@\n"; | |
316 | my $search = $entry->{user_attr} . "=" . $userid; | |
317 | my $result = $ldap->search( base => "$entry->{base_dn}", | |
318 | scope => "sub", | |
319 | filter => "$search", | |
320 | attrs => ['dn'] | |
321 | ); | |
322 | die "no entries returned\n" if !$result->entries; | |
323 | my @entries = $result->entries; | |
324 | my $res = $ldap->bind($entries[0]->dn, password => $password); | |
325 | ||
326 | my $code = $res->code(); | |
327 | my $err = $res->error; | |
328 | ||
329 | $ldap->unbind(); | |
330 | ||
331 | die "$err\n" if ($code); | |
332 | } | |
333 | ||
334 | sub authenticate_user_domain { | |
335 | my ($realm, $userid, $password) = @_; | |
336 | ||
337 | my $domain_cfg = cfs_read_file($domainconfigfile); | |
338 | ||
339 | die "no auth domain specified" if !$realm; | |
340 | ||
341 | if ($realm eq 'pam') { | |
342 | authenticate_user_pam($userid, $password); | |
343 | return; | |
344 | } | |
345 | ||
346 | eval { | |
347 | if ($realm eq 'pve') { | |
348 | authenticate_user_shadow($userid, $password); | |
349 | } else { | |
350 | ||
351 | my $cfg = $domain_cfg->{$realm}; | |
352 | die "auth domain '$realm' does not exists\n" if !$cfg; | |
353 | ||
354 | if ($cfg->{type} eq 'ad') { | |
355 | eval { authenticate_user_ad($cfg, $cfg->{server1}, $userid, $password); }; | |
356 | my $err = $@; | |
357 | return if !$err; | |
358 | die $err if !$cfg->{server2}; | |
359 | authenticate_user_ad($cfg, $cfg->{server2}, $userid, $password); | |
360 | } elsif ($cfg->{type} eq 'ldap') { | |
361 | eval { authenticate_user_ldap($cfg, $cfg->{server1}, $userid, $password); }; | |
362 | my $err = $@; | |
363 | return if !$err; | |
364 | die $err if !$cfg->{server2}; | |
365 | authenticate_user_ldap($cfg, $cfg->{server2}, $userid, $password); | |
366 | } else { | |
367 | die "unknown auth type '$cfg->{type}'\n"; | |
368 | } | |
369 | } | |
370 | }; | |
371 | if (my $err = $@) { | |
372 | sleep(2); # timeout after failed auth | |
373 | die $err; | |
374 | } | |
375 | } | |
376 | ||
377 | sub check_user_exist { | |
378 | my ($usercfg, $username, $noerr) = @_; | |
379 | ||
380 | $username = verify_username($username, $noerr); | |
381 | return undef if !$username; | |
382 | ||
383 | return $usercfg->{users}->{$username} if $usercfg && $usercfg->{users}->{$username}; | |
384 | ||
385 | die "no such user ('$username')\n" if !$noerr; | |
386 | ||
387 | return undef; | |
388 | } | |
389 | ||
390 | sub check_user_enabled { | |
391 | my ($usercfg, $username, $noerr) = @_; | |
392 | ||
393 | my $data = check_user_exist($usercfg, $username, $noerr); | |
394 | return undef if !$data; | |
395 | ||
396 | return 1 if $data->{enable}; | |
397 | ||
398 | return 1 if $username eq 'root@pam'; # root is always enabled | |
399 | ||
400 | die "user '$username' is disabled\n" if !$noerr; | |
401 | ||
402 | return undef; | |
403 | } | |
404 | ||
405 | # password should be utf8 encoded | |
406 | sub authenticate_user { | |
407 | my ($username, $password) = @_; | |
408 | ||
409 | die "no username specified\n" if !$username; | |
410 | ||
411 | my ($userid, $realm); | |
412 | ||
413 | ($username, $userid, $realm) = verify_username($username); | |
414 | ||
415 | my $usercfg = cfs_read_file('user.cfg'); | |
416 | ||
417 | eval { check_user_enabled($usercfg, $username); }; | |
418 | if (my $err = $@) { | |
419 | sleep(2); | |
420 | die $err; | |
421 | } | |
422 | ||
423 | my $ctime = time(); | |
424 | my $expire = $usercfg->{users}->{$username}->{expire}; | |
425 | ||
426 | if ($expire && ($expire < $ctime)) { | |
427 | sleep(2); | |
428 | die "account expired\n" | |
429 | } | |
430 | ||
431 | authenticate_user_domain($realm, $userid, $password); | |
432 | ||
433 | return $username; | |
434 | } | |
435 | ||
436 | sub delete_shadow_password { | |
437 | my ($userid) = @_; | |
438 | ||
439 | lock_shadow_config(sub { | |
440 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
441 | delete ($shadow_cfg->{users}->{$userid}) | |
442 | if $shadow_cfg->{users}->{$userid}; | |
443 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
444 | }); | |
445 | } | |
446 | ||
447 | sub store_shadow_password { | |
448 | my ($userid, $password) = @_; | |
449 | ||
450 | lock_shadow_config(sub { | |
451 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
452 | $shadow_cfg->{users}->{$userid}->{shadow} = encrypt_pw($password); | |
453 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
454 | }); | |
455 | } | |
456 | ||
457 | sub encrypt_pw { | |
458 | my ($pw) = @_; | |
459 | ||
460 | my $time = substr (Digest::SHA::sha1_base64 (time), 0, 8); | |
461 | return crypt (encode("utf8", $pw), "\$5\$$time\$"); | |
462 | } | |
463 | ||
464 | sub store_pam_password { | |
465 | my ($userid, $password) = @_; | |
466 | ||
467 | my $cmd = ['usermod']; | |
468 | ||
469 | my $epw = encrypt_pw($password); | |
470 | push @$cmd, '-p', $epw; | |
471 | ||
472 | push @$cmd, $userid; | |
473 | ||
474 | run_command($cmd, errmsg => 'change password failed'); | |
475 | } | |
476 | ||
477 | sub domain_set_password { | |
478 | my ($realm, $userid, $password) = @_; | |
479 | ||
480 | die "no auth domain specified" if !$realm; | |
481 | ||
482 | if ($realm eq 'pam') { | |
483 | store_pam_password($userid, $password); | |
484 | } elsif ($realm eq 'pve') { | |
485 | store_shadow_password($userid, $password); | |
486 | } else { | |
487 | die "can't set password on auth domain '$realm'\n"; | |
488 | } | |
489 | } | |
490 | ||
491 | sub add_user_group { | |
492 | ||
493 | my ($username, $usercfg, $group) = @_; | |
494 | $usercfg->{users}->{$username}->{groups}->{$group} = 1; | |
495 | $usercfg->{groups}->{$group}->{users}->{$username} = 1; | |
496 | } | |
497 | ||
498 | sub delete_user_group { | |
499 | ||
500 | my ($username, $usercfg) = @_; | |
501 | ||
502 | foreach my $group (keys %{$usercfg->{groups}}) { | |
503 | ||
504 | delete ($usercfg->{groups}->{$group}->{users}->{$username}) | |
505 | if $usercfg->{groups}->{$group}->{users}->{$username}; | |
506 | } | |
507 | } | |
508 | ||
509 | sub delete_user_acl { | |
510 | ||
511 | my ($username, $usercfg) = @_; | |
512 | ||
513 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
514 | ||
515 | delete ($usercfg->{acl}->{$acl}->{users}->{$username}) | |
516 | if $usercfg->{acl}->{$acl}->{users}->{$username}; | |
517 | } | |
518 | } | |
519 | ||
520 | sub delete_group_acl { | |
521 | ||
522 | my ($group, $usercfg) = @_; | |
523 | ||
524 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
525 | ||
526 | delete ($usercfg->{acl}->{$acl}->{groups}->{$group}) | |
527 | if $usercfg->{acl}->{$acl}->{groups}->{$group}; | |
528 | } | |
529 | } | |
530 | ||
531 | sub delete_pool_acl { | |
532 | ||
533 | my ($pool, $usercfg) = @_; | |
534 | ||
535 | my $path = "/pool/$pool"; | |
536 | ||
537 | foreach my $aclpath (keys %{$usercfg->{acl}}) { | |
538 | delete ($usercfg->{acl}->{$aclpath}) | |
539 | if $usercfg->{acl}->{$aclpath} eq 'path'; | |
540 | } | |
541 | } | |
542 | ||
543 | # we automatically create some predefined roles by splitting privs | |
544 | # into 3 groups (per category) | |
545 | # root: only root is allowed to do that | |
546 | # admin: an administrator can to that | |
547 | # user: a normak user/customer can to that | |
548 | my $privgroups = { | |
549 | VM => { | |
550 | root => [], | |
551 | admin => [ | |
552 | 'VM.Config.Disk', | |
553 | 'VM.Config.CPU', | |
554 | 'VM.Config.Memory', | |
555 | 'VM.Config.Network', | |
556 | 'VM.Config.HWType', | |
557 | 'VM.Config.Options', # covers all other things | |
558 | 'VM.Allocate', | |
559 | 'VM.Migrate', | |
560 | 'VM.Monitor', | |
561 | ], | |
562 | user => [ | |
563 | 'VM.Config.CDROM', # change CDROM media | |
564 | 'VM.Console', | |
565 | 'VM.Backup', | |
566 | 'VM.PowerMgmt', | |
567 | ], | |
568 | audit => [ | |
569 | 'VM.Audit', | |
570 | ], | |
571 | }, | |
572 | Sys => { | |
573 | root => [ | |
574 | 'Sys.PowerMgmt', | |
575 | 'Sys.Modify', # edit/change node settings | |
576 | ], | |
577 | admin => [ | |
578 | 'Permissions.Modify', | |
579 | 'Sys.Console', | |
580 | 'Sys.Syslog', | |
581 | ], | |
582 | user => [], | |
583 | audit => [ | |
584 | 'Sys.Audit', | |
585 | ], | |
586 | }, | |
587 | Datastore => { | |
588 | root => [], | |
589 | admin => [ | |
590 | 'Datastore.Allocate', | |
591 | 'Datastore.AllocateTemplate', | |
592 | ], | |
593 | user => [ | |
594 | 'Datastore.AllocateSpace', | |
595 | ], | |
596 | audit => [ | |
597 | 'Datastore.Audit', | |
598 | ], | |
599 | }, | |
600 | User => { | |
601 | root => [ | |
602 | 'Realm.Allocate', | |
603 | ], | |
604 | admin => [ | |
605 | 'User.Modify', | |
606 | 'Group.Allocate', # edit/change group settings | |
607 | 'Realm.AllocateUser', | |
608 | ], | |
609 | user => [], | |
610 | audit => [], | |
611 | }, | |
612 | Pool => { | |
613 | root => [], | |
614 | admin => [ | |
615 | 'Pool.Allocate', # create/delete pools | |
616 | ], | |
617 | user => [], | |
618 | audit => [], | |
619 | }, | |
620 | }; | |
621 | ||
622 | my $valid_privs = {}; | |
623 | ||
624 | my $special_roles = { | |
625 | 'NoAccess' => {}, # no priviledges | |
626 | 'Administrator' => $valid_privs, # all priviledges | |
627 | }; | |
628 | ||
629 | sub create_roles { | |
630 | ||
631 | foreach my $cat (keys %$privgroups) { | |
632 | my $cd = $privgroups->{$cat}; | |
633 | foreach my $p (@{$cd->{root}}, @{$cd->{admin}}, | |
634 | @{$cd->{user}}, @{$cd->{audit}}) { | |
635 | $valid_privs->{$p} = 1; | |
636 | } | |
637 | foreach my $p (@{$cd->{admin}}, @{$cd->{user}}, @{$cd->{audit}}) { | |
638 | ||
639 | $special_roles->{"PVE${cat}Admin"}->{$p} = 1; | |
640 | $special_roles->{"PVEAdmin"}->{$p} = 1; | |
641 | } | |
642 | if (scalar(@{$cd->{user}})) { | |
643 | foreach my $p (@{$cd->{user}}, @{$cd->{audit}}) { | |
644 | $special_roles->{"PVE${cat}User"}->{$p} = 1; | |
645 | } | |
646 | } | |
647 | foreach my $p (@{$cd->{audit}}) { | |
648 | $special_roles->{"PVEAuditor"}->{$p} = 1; | |
649 | } | |
650 | } | |
651 | }; | |
652 | ||
653 | create_roles(); | |
654 | ||
655 | my $valid_attributes = { | |
656 | ad => { | |
657 | server1 => '[\w\d]+(.[\w\d]+)*', | |
658 | server2 => '[\w\d]+(.[\w\d]+)*', | |
659 | domain => '\S+', | |
660 | port => '\d+', | |
661 | secure => '', | |
662 | comment => '.*', | |
663 | }, | |
664 | ldap => { | |
665 | server1 => '[\w\d]+(.[\w\d]+)*', | |
666 | server2 => '[\w\d]+(.[\w\d]+)*', | |
667 | base_dn => '\w+=[^,]+(,\s*\w+=[^,]+)*', | |
668 | user_attr => '\S{2,}', | |
669 | secure => '', | |
670 | port => '\d+', | |
671 | comment => '.*', | |
672 | } | |
673 | }; | |
674 | ||
675 | sub add_role_privs { | |
676 | my ($role, $usercfg, $privs) = @_; | |
677 | ||
678 | return if !$privs; | |
679 | ||
680 | die "role '$role' does not exist\n" if !$usercfg->{roles}->{$role}; | |
681 | ||
682 | foreach my $priv (split_list($privs)) { | |
683 | if (defined ($valid_privs->{$priv})) { | |
684 | $usercfg->{roles}->{$role}->{$priv} = 1; | |
685 | } else { | |
686 | die "invalid priviledge '$priv'\n"; | |
687 | } | |
688 | } | |
689 | } | |
690 | ||
691 | sub normalize_path { | |
692 | my $path = shift; | |
693 | ||
694 | $path =~ s|/+|/|g; | |
695 | ||
696 | $path =~ s|/$||; | |
697 | ||
698 | $path = '/' if !$path; | |
699 | ||
700 | $path = "/$path" if $path !~ m|^/|; | |
701 | ||
702 | return undef if $path !~ m|^[[:alnum:]\-\_\/]+$|; | |
703 | ||
704 | return $path; | |
705 | } | |
706 | ||
707 | my $realm_regex = qr/[A-Za-z][A-Za-z0-9\.\-_]+/; | |
708 | ||
709 | PVE::JSONSchema::register_format('pve-realm', \&pve_verify_realm); | |
710 | sub pve_verify_realm { | |
711 | my ($realm, $noerr) = @_; | |
712 | ||
713 | if ($realm !~ m/^${realm_regex}$/) { | |
714 | return undef if $noerr; | |
715 | die "value does not look like a valid realm\n"; | |
716 | } | |
717 | return $realm; | |
718 | } | |
719 | ||
720 | PVE::JSONSchema::register_format('pve-userid', \&verify_username); | |
721 | sub verify_username { | |
722 | my ($username, $noerr) = @_; | |
723 | ||
724 | $username = '' if !$username; | |
725 | my $len = length($username); | |
726 | if ($len < 3) { | |
727 | die "user name '$username' is too short\n" if !$noerr; | |
728 | return undef; | |
729 | } | |
730 | if ($len > 64) { | |
731 | die "user name '$username' is too long ($len > 64)\n" if !$noerr; | |
732 | return undef; | |
733 | } | |
734 | ||
735 | # we only allow a limited set of characters | |
736 | # colon is not allowed, because we store usernames in | |
737 | # colon separated lists)! | |
738 | # slash is not allowed because it is used as pve API delimiter | |
739 | # also see "man useradd" | |
740 | if ($username =~ m!^([^\s:/]+)\@(${realm_regex})$!) { | |
741 | return wantarray ? ($username, $1, $2) : $username; | |
742 | } | |
743 | ||
744 | die "value '$username' does not look like a valid user name\n" if !$noerr; | |
745 | ||
746 | return undef; | |
747 | } | |
748 | PVE::JSONSchema::register_standard_option('userid', { | |
749 | description => "User ID", | |
750 | type => 'string', format => 'pve-userid', | |
751 | maxLength => 64, | |
752 | }); | |
753 | ||
754 | PVE::JSONSchema::register_standard_option('realm', { | |
755 | description => "Authentication domain ID", | |
756 | type => 'string', format => 'pve-realm', | |
757 | maxLength => 32, | |
758 | }); | |
759 | ||
760 | PVE::JSONSchema::register_format('pve-groupid', \&verify_groupname); | |
761 | sub verify_groupname { | |
762 | my ($groupname, $noerr) = @_; | |
763 | ||
764 | if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
765 | ||
766 | die "group name '$groupname' contains invalid characters\n" if !$noerr; | |
767 | ||
768 | return undef; | |
769 | } | |
770 | ||
771 | return $groupname; | |
772 | } | |
773 | ||
774 | PVE::JSONSchema::register_format('pve-roleid', \&verify_rolename); | |
775 | sub verify_rolename { | |
776 | my ($rolename, $noerr) = @_; | |
777 | ||
778 | if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
779 | ||
780 | die "role name '$rolename' contains invalid characters\n" if !$noerr; | |
781 | ||
782 | return undef; | |
783 | } | |
784 | ||
785 | return $rolename; | |
786 | } | |
787 | ||
788 | PVE::JSONSchema::register_format('pve-poolid', \&verify_groupname); | |
789 | sub verify_poolname { | |
790 | my ($poolname, $noerr) = @_; | |
791 | ||
792 | if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
793 | ||
794 | die "pool name '$poolname' contains invalid characters\n" if !$noerr; | |
795 | ||
796 | return undef; | |
797 | } | |
798 | ||
799 | return $poolname; | |
800 | } | |
801 | ||
802 | PVE::JSONSchema::register_format('pve-priv', \&verify_privname); | |
803 | sub verify_privname { | |
804 | my ($priv, $noerr) = @_; | |
805 | ||
806 | if (!$valid_privs->{$priv}) { | |
807 | die "invalid priviledge '$priv'\n" if !$noerr; | |
808 | ||
809 | return undef; | |
810 | } | |
811 | ||
812 | return $priv; | |
813 | } | |
814 | ||
815 | sub userconfig_force_defaults { | |
816 | my ($cfg) = @_; | |
817 | ||
818 | foreach my $r (keys %$special_roles) { | |
819 | $cfg->{roles}->{$r} = $special_roles->{$r}; | |
820 | } | |
821 | ||
822 | # fixme: remove 'root' group (not required)? | |
823 | ||
824 | # add root user | |
825 | $cfg->{users}->{'root@pam'}->{enable} = 1; | |
826 | } | |
827 | ||
828 | sub parse_user_config { | |
829 | my ($filename, $raw) = @_; | |
830 | ||
831 | my $cfg = {}; | |
832 | ||
833 | userconfig_force_defaults($cfg); | |
834 | ||
835 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
836 | my $line = $1; | |
837 | ||
838 | next if $line =~ m/^\s*$/; # skip empty lines | |
839 | ||
840 | my @data; | |
841 | ||
842 | foreach my $d (split (/:/, $line)) { | |
843 | $d =~ s/^\s+//; | |
844 | $d =~ s/\s+$//; | |
845 | push @data, $d | |
846 | } | |
847 | ||
848 | my $et = shift @data; | |
849 | ||
850 | if ($et eq 'user') { | |
851 | my ($user, $enable, $expire, $firstname, $lastname, $email, $comment) = @data; | |
852 | ||
853 | my (undef, undef, $realm) = verify_username($user, 1); | |
854 | if (!$realm) { | |
855 | warn "user config - ignore user '$user' - invalid user name\n"; | |
856 | next; | |
857 | } | |
858 | ||
859 | $enable = $enable ? 1 : 0; | |
860 | ||
861 | $expire = 0 if !$expire; | |
862 | ||
863 | if ($expire !~ m/^\d+$/) { | |
864 | warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n"; | |
865 | next; | |
866 | } | |
867 | $expire = int($expire); | |
868 | ||
869 | #if (!verify_groupname ($group, 1)) { | |
870 | # warn "user config - ignore user '$user' - invalid characters in group name\n"; | |
871 | # next; | |
872 | #} | |
873 | ||
874 | $cfg->{users}->{$user} = { | |
875 | enable => $enable, | |
876 | # group => $group, | |
877 | }; | |
878 | $cfg->{users}->{$user}->{firstname} = PVE::Tools::decode_text($firstname) if $firstname; | |
879 | $cfg->{users}->{$user}->{lastname} = PVE::Tools::decode_text($lastname) if $lastname; | |
880 | $cfg->{users}->{$user}->{email} = $email; | |
881 | $cfg->{users}->{$user}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
882 | $cfg->{users}->{$user}->{expire} = $expire; | |
883 | ||
884 | #$cfg->{users}->{$user}->{groups}->{$group} = 1; | |
885 | #$cfg->{groups}->{$group}->{$user} = 1; | |
886 | ||
887 | } elsif ($et eq 'group') { | |
888 | my ($group, $userlist, $comment) = @data; | |
889 | ||
890 | if (!verify_groupname($group, 1)) { | |
891 | warn "user config - ignore group '$group' - invalid characters in group name\n"; | |
892 | next; | |
893 | } | |
894 | ||
895 | # make sure to add the group (even if there are no members) | |
896 | $cfg->{groups}->{$group} = { users => {} } if !$cfg->{groups}->{$group}; | |
897 | ||
898 | $cfg->{groups}->{$group}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
899 | ||
900 | foreach my $user (split_list($userlist)) { | |
901 | ||
902 | if (!verify_username($user, 1)) { | |
903 | warn "user config - ignore invalid group member '$user'\n"; | |
904 | next; | |
905 | } | |
906 | ||
907 | if ($cfg->{users}->{$user}) { # user exists | |
908 | $cfg->{users}->{$user}->{groups}->{$group} = 1; | |
909 | $cfg->{groups}->{$group}->{users}->{$user} = 1; | |
910 | } else { | |
911 | warn "user config - ignore invalid group member '$user'\n"; | |
912 | } | |
913 | } | |
914 | ||
915 | } elsif ($et eq 'role') { | |
916 | my ($role, $privlist) = @data; | |
917 | ||
918 | if (!verify_rolename($role, 1)) { | |
919 | warn "user config - ignore role '$role' - invalid characters in role name\n"; | |
920 | next; | |
921 | } | |
922 | ||
923 | # make sure to add the role (even if there are no privileges) | |
924 | $cfg->{roles}->{$role} = {} if !$cfg->{roles}->{$role}; | |
925 | ||
926 | foreach my $priv (split_list($privlist)) { | |
927 | if (defined ($valid_privs->{$priv})) { | |
928 | $cfg->{roles}->{$role}->{$priv} = 1; | |
929 | } else { | |
930 | warn "user config - ignore invalid priviledge '$priv'\n"; | |
931 | } | |
932 | } | |
933 | ||
934 | } elsif ($et eq 'acl') { | |
935 | my ($propagate, $pathtxt, $uglist, $rolelist) = @data; | |
936 | ||
937 | if (my $path = normalize_path($pathtxt)) { | |
938 | foreach my $role (split_list($rolelist)) { | |
939 | ||
940 | if (!verify_rolename($role, 1)) { | |
941 | warn "user config - ignore invalid role name '$role' in acl\n"; | |
942 | next; | |
943 | } | |
944 | ||
945 | foreach my $ug (split_list($uglist)) { | |
946 | if ($ug =~ m/^@(\S+)$/) { | |
947 | my $group = $1; | |
948 | if ($cfg->{groups}->{$group}) { # group exists | |
949 | $cfg->{acl}->{$path}->{groups}->{$group}->{$role} = $propagate; | |
950 | } else { | |
951 | warn "user config - ignore invalid acl group '$group'\n"; | |
952 | } | |
953 | } elsif (verify_username($ug, 1)) { | |
954 | if ($cfg->{users}->{$ug}) { # user exists | |
955 | $cfg->{acl}->{$path}->{users}->{$ug}->{$role} = $propagate; | |
956 | } else { | |
957 | warn "user config - ignore invalid acl member '$ug'\n"; | |
958 | } | |
959 | } else { | |
960 | warn "user config - invalid user/group '$ug' in acl\n"; | |
961 | } | |
962 | } | |
963 | } | |
964 | } else { | |
965 | warn "user config - ignore invalid path in acl '$pathtxt'\n"; | |
966 | } | |
967 | } elsif ($et eq 'pool') { | |
968 | my ($pool, $comment, $vmlist, $storelist) = @data; | |
969 | ||
970 | if (!verify_poolname($pool, 1)) { | |
971 | warn "user config - ignore pool '$pool' - invalid characters in pool name\n"; | |
972 | next; | |
973 | } | |
974 | ||
975 | # make sure to add the pool (even if there are no members) | |
976 | $cfg->{pools}->{$pool} = { vms => {}, storage => {} } if !$cfg->{pools}->{$pool}; | |
977 | ||
978 | $cfg->{pools}->{$pool}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
979 | ||
980 | foreach my $vmid (split_list($vmlist)) { | |
981 | if ($vmid !~ m/^\d+$/) { | |
982 | warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n"; | |
983 | next; | |
984 | } | |
985 | $vmid = int($vmid); | |
986 | ||
987 | if ($cfg->{vms}->{$vmid}) { | |
988 | warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n"; | |
989 | next; | |
990 | } | |
991 | ||
992 | $cfg->{pools}->{$pool}->{vms}->{$vmid} = 1; | |
993 | ||
994 | # record vmid ==> pool relation | |
995 | $cfg->{vms}->{$vmid} = $pool; | |
996 | } | |
997 | ||
998 | foreach my $storeid (split_list($storelist)) { | |
999 | if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
1000 | warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n"; | |
1001 | next; | |
1002 | } | |
1003 | $cfg->{pools}->{$pool}->{storage}->{$storeid} = 1; | |
1004 | } | |
1005 | } else { | |
1006 | warn "user config - ignore config line: $line\n"; | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | userconfig_force_defaults($cfg); | |
1011 | ||
1012 | return $cfg; | |
1013 | } | |
1014 | ||
1015 | sub parse_shadow_passwd { | |
1016 | my ($filename, $raw) = @_; | |
1017 | ||
1018 | my $shadow = {}; | |
1019 | ||
1020 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
1021 | my $line = $1; | |
1022 | ||
1023 | next if $line =~ m/^\s*$/; # skip empty lines | |
1024 | ||
1025 | if ($line !~ m/^\S+:\S+:$/) { | |
1026 | warn "pve shadow password: ignore invalid line $.\n"; | |
1027 | next; | |
1028 | } | |
1029 | ||
1030 | my ($userid, $crypt_pass) = split (/:/, $line); | |
1031 | $shadow->{users}->{$userid}->{shadow} = $crypt_pass; | |
1032 | } | |
1033 | ||
1034 | return $shadow; | |
1035 | } | |
1036 | ||
1037 | sub write_domains { | |
1038 | my ($filename, $cfg) = @_; | |
1039 | ||
1040 | my $data = ''; | |
1041 | ||
1042 | my $wrote_default; | |
1043 | ||
1044 | foreach my $realm (sort keys %$cfg) { | |
1045 | my $entry = $cfg->{$realm}; | |
1046 | my $type = lc($entry->{type}); | |
1047 | ||
1048 | next if !$type; | |
1049 | ||
1050 | next if ($type eq 'pam') || ($type eq 'pve'); | |
1051 | ||
1052 | my $formats = $valid_attributes->{$type}; | |
1053 | next if !$formats; | |
1054 | ||
1055 | $data .= "$type: $realm\n"; | |
1056 | ||
1057 | foreach my $k (sort keys %$entry) { | |
1058 | next if $k eq 'type'; | |
1059 | my $v = $entry->{$k}; | |
1060 | if ($k eq 'default') { | |
1061 | $data .= "\t$k\n" if $v && !$wrote_default; | |
1062 | $wrote_default = 1; | |
1063 | } elsif (defined($formats->{$k})) { | |
1064 | if (!$formats->{$k}) { | |
1065 | $data .= "\t$k\n" if $v; | |
1066 | } elsif ($v =~ m/^$formats->{$k}$/) { | |
1067 | $v = PVE::Tools::encode_text($v) if $k eq 'comment'; | |
1068 | $data .= "\t$k $v\n"; | |
1069 | } else { | |
1070 | die "invalid value '$v' for attribute '$k'\n"; | |
1071 | } | |
1072 | } else { | |
1073 | die "invalid attribute '$k' - not supported\n"; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | $data .= "\n"; | |
1078 | } | |
1079 | ||
1080 | return $data; | |
1081 | } | |
1082 | ||
1083 | sub parse_domains { | |
1084 | my ($filename, $raw) = @_; | |
1085 | ||
1086 | my $cfg = {}; | |
1087 | ||
1088 | my $default; | |
1089 | ||
1090 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
1091 | my $line = $1; | |
1092 | ||
1093 | next if $line =~ m/^\#/; # skip comment lines | |
1094 | next if $line =~ m/^\s*$/; # skip empty lines | |
1095 | ||
1096 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
1097 | my $realm = $2; | |
1098 | my $type = lc($1); | |
1099 | ||
1100 | my $ignore = 0; | |
1101 | my $entry; | |
1102 | ||
1103 | my $formats = $valid_attributes->{$type}; | |
1104 | if (!$formats) { | |
1105 | $ignore = 1; | |
1106 | warn "ignoring domain '$realm' - (unsupported authentication type '$type')\n"; | |
1107 | } elsif (!pve_verify_realm($realm, 1)) { | |
1108 | $ignore = 1; | |
1109 | warn "ignoring domain '$realm' - (illegal characters)\n"; | |
1110 | } else { | |
1111 | $entry = { type => $type }; | |
1112 | } | |
1113 | ||
1114 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
1115 | $line = $1; | |
1116 | ||
1117 | next if $line =~ m/^\#/; #skip comment lines | |
1118 | last if $line =~ m/^\s*$/; | |
1119 | ||
1120 | next if $ignore; # skip | |
1121 | ||
1122 | if ($line =~ m/^\s+(default)\s*$/) { | |
1123 | $default = $realm if !$default; | |
1124 | } elsif ($line =~ m/^\s+(\S+)(\s+(.*\S))?\s*$/) { | |
1125 | my ($k, $v) = (lc($1), $3); | |
1126 | if (defined($formats->{$k})) { | |
1127 | if (!$formats->{$k} && !defined($v)) { | |
1128 | $entry->{$k} = 1; | |
1129 | } elsif ($formats->{$k} && $v =~ m/^$formats->{$k}$/) { | |
1130 | if (!defined($entry->{$k})) { | |
1131 | $v = PVE::Tools::decode_text($v) if $k eq 'comment'; | |
1132 | $entry->{$k} = $v; | |
1133 | } else { | |
1134 | warn "ignoring duplicate attribute '$k $v'\n"; | |
1135 | } | |
1136 | } else { | |
1137 | warn "ignoring value '$v' for attribute '$k' - invalid format\n"; | |
1138 | } | |
1139 | } else { | |
1140 | warn "ignoring attribute '$k' - not supported\n"; | |
1141 | } | |
1142 | } else { | |
1143 | warn "ignore config line: $line\n"; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | if ($entry->{server2} && !$entry->{server1}) { | |
1148 | $entry->{server1} = $entry->{server2}; | |
1149 | delete $entry->{server2}; | |
1150 | } | |
1151 | ||
1152 | if ($ignore) { | |
1153 | # do nothing | |
1154 | } elsif (!$entry->{server1}) { | |
1155 | warn "ignoring domain '$realm' - missing server attribute\n"; | |
1156 | } elsif (($entry->{type} eq "ldap") && !$entry->{user_attr}) { | |
1157 | warn "ignoring domain '$realm' - missing user attribute\n"; | |
1158 | } elsif (($entry->{type} eq "ldap") && !$entry->{base_dn}) { | |
1159 | warn "ignoring domain '$realm' - missing base_dn attribute\n"; | |
1160 | } elsif (($entry->{type} eq "ad") && !$entry->{domain}) { | |
1161 | warn "ignoring domain '$realm' - missing domain attribute\n"; | |
1162 | } else { | |
1163 | $cfg->{$realm} = $entry; | |
1164 | } | |
1165 | ||
1166 | } else { | |
1167 | warn "ignore config line: $line\n"; | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | $cfg->{$default}->{default} = 1 if $default; | |
1172 | ||
1173 | # add default domains | |
1174 | ||
1175 | $cfg->{pve} = { | |
1176 | type => 'builtin', | |
1177 | comment => "Proxmox VE authentication server", | |
1178 | }; | |
1179 | ||
1180 | $cfg->{pam} = { | |
1181 | type => 'builtin', | |
1182 | comment => "Linux PAM standard authentication", | |
1183 | }; | |
1184 | ||
1185 | return $cfg; | |
1186 | } | |
1187 | ||
1188 | sub write_shadow_config { | |
1189 | my ($filename, $cfg) = @_; | |
1190 | ||
1191 | my $data = ''; | |
1192 | foreach my $userid (keys %{$cfg->{users}}) { | |
1193 | my $crypt_pass = $cfg->{users}->{$userid}->{shadow}; | |
1194 | $data .= "$userid:$crypt_pass:\n"; | |
1195 | } | |
1196 | ||
1197 | return $data | |
1198 | } | |
1199 | ||
1200 | sub write_user_config { | |
1201 | my ($filename, $cfg) = @_; | |
1202 | ||
1203 | my $data = ''; | |
1204 | ||
1205 | foreach my $user (keys %{$cfg->{users}}) { | |
1206 | my $d = $cfg->{users}->{$user}; | |
1207 | my $firstname = $d->{firstname} ? PVE::Tools::encode_text($d->{firstname}) : ''; | |
1208 | my $lastname = $d->{lastname} ? PVE::Tools::encode_text($d->{lastname}) : ''; | |
1209 | my $email = $d->{email} || ''; | |
1210 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1211 | my $expire = int($d->{expire} || 0); | |
1212 | my $enable = $d->{enable} ? 1 : 0; | |
1213 | $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:\n"; | |
1214 | } | |
1215 | ||
1216 | $data .= "\n"; | |
1217 | ||
1218 | foreach my $group (keys %{$cfg->{groups}}) { | |
1219 | my $d = $cfg->{groups}->{$group}; | |
1220 | my $list = join (',', keys %{$d->{users}}); | |
1221 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1222 | $data .= "group:$group:$list:$comment:\n"; | |
1223 | } | |
1224 | ||
1225 | $data .= "\n"; | |
1226 | ||
1227 | foreach my $pool (keys %{$cfg->{pools}}) { | |
1228 | my $d = $cfg->{pools}->{$pool}; | |
1229 | my $vmlist = join (',', keys %{$d->{vms}}); | |
1230 | my $storelist = join (',', keys %{$d->{storage}}); | |
1231 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1232 | $data .= "pool:$pool:$comment:$vmlist:$storelist:\n"; | |
1233 | } | |
1234 | ||
1235 | $data .= "\n"; | |
1236 | ||
1237 | foreach my $role (keys %{$cfg->{roles}}) { | |
1238 | next if $special_roles->{$role}; | |
1239 | ||
1240 | my $d = $cfg->{roles}->{$role}; | |
1241 | my $list = join (',', keys %$d); | |
1242 | $data .= "role:$role:$list:\n"; | |
1243 | } | |
1244 | ||
1245 | $data .= "\n"; | |
1246 | ||
1247 | foreach my $path (sort keys %{$cfg->{acl}}) { | |
1248 | my $d = $cfg->{acl}->{$path}; | |
1249 | ||
1250 | my $ra = {}; | |
1251 | ||
1252 | foreach my $group (keys %{$d->{groups}}) { | |
1253 | my $l0 = ''; | |
1254 | my $l1 = ''; | |
1255 | foreach my $role (sort keys %{$d->{groups}->{$group}}) { | |
1256 | my $propagate = $d->{groups}->{$group}->{$role}; | |
1257 | if ($propagate) { | |
1258 | $l1 .= ',' if $l1; | |
1259 | $l1 .= $role; | |
1260 | } else { | |
1261 | $l0 .= ',' if $l0; | |
1262 | $l0 .= $role; | |
1263 | } | |
1264 | } | |
1265 | $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0; | |
1266 | $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1; | |
1267 | } | |
1268 | ||
1269 | foreach my $user (keys %{$d->{users}}) { | |
1270 | # no need to save, because root is always 'Administartor' | |
1271 | next if $user eq 'root@pam'; | |
1272 | ||
1273 | my $l0 = ''; | |
1274 | my $l1 = ''; | |
1275 | foreach my $role (sort keys %{$d->{users}->{$user}}) { | |
1276 | my $propagate = $d->{users}->{$user}->{$role}; | |
1277 | if ($propagate) { | |
1278 | $l1 .= ',' if $l1; | |
1279 | $l1 .= $role; | |
1280 | } else { | |
1281 | $l0 .= ',' if $l0; | |
1282 | $l0 .= $role; | |
1283 | } | |
1284 | } | |
1285 | $ra->{0}->{$l0}->{$user} = 1 if $l0; | |
1286 | $ra->{1}->{$l1}->{$user} = 1 if $l1; | |
1287 | } | |
1288 | ||
1289 | foreach my $rolelist (sort keys %{$ra->{0}}) { | |
1290 | my $uglist = join (',', keys %{$ra->{0}->{$rolelist}}); | |
1291 | $data .= "acl:0:$path:$uglist:$rolelist:\n"; | |
1292 | } | |
1293 | foreach my $rolelist (sort keys %{$ra->{1}}) { | |
1294 | my $uglist = join (',', keys %{$ra->{1}->{$rolelist}}); | |
1295 | $data .= "acl:1:$path:$uglist:$rolelist:\n"; | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | return $data; | |
1300 | } | |
1301 | ||
1302 | sub roles { | |
1303 | my ($cfg, $user, $path) = @_; | |
1304 | ||
1305 | # NOTE: we do not consider pools here. | |
1306 | # You need to use $rpcenv->roles() instead if you want that. | |
1307 | ||
1308 | return 'Administrator' if $user eq 'root@pam'; # root can do anything | |
1309 | ||
1310 | my $perm = {}; | |
1311 | ||
1312 | foreach my $p (sort keys %{$cfg->{acl}}) { | |
1313 | my $final = ($path eq $p); | |
1314 | ||
1315 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); | |
1316 | ||
1317 | my $acl = $cfg->{acl}->{$p}; | |
1318 | ||
1319 | #print "CHECKACL $path $p\n"; | |
1320 | #print "ACL $path = " . Dumper ($acl); | |
1321 | ||
1322 | if (my $ri = $acl->{users}->{$user}) { | |
1323 | my $new; | |
1324 | foreach my $role (keys %$ri) { | |
1325 | my $propagate = $ri->{$role}; | |
1326 | if ($final || $propagate) { | |
1327 | #print "APPLY ROLE $p $user $role\n"; | |
1328 | $new = {} if !$new; | |
1329 | $new->{$role} = 1; | |
1330 | } | |
1331 | } | |
1332 | if ($new) { | |
1333 | $perm = $new; # overwrite previous settings | |
1334 | next; # user privs always override group privs | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | my $new; | |
1339 | foreach my $g (keys %{$acl->{groups}}) { | |
1340 | next if !$cfg->{groups}->{$g}->{users}->{$user}; | |
1341 | if (my $ri = $acl->{groups}->{$g}) { | |
1342 | foreach my $role (keys %$ri) { | |
1343 | my $propagate = $ri->{$role}; | |
1344 | if ($final || $propagate) { | |
1345 | #print "APPLY ROLE $p \@$g $role\n"; | |
1346 | $new = {} if !$new; | |
1347 | $new->{$role} = 1; | |
1348 | } | |
1349 | } | |
1350 | } | |
1351 | } | |
1352 | if ($new) { | |
1353 | $perm = $new; # overwrite previous settings | |
1354 | next; | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | return ('NoAccess') if defined ($perm->{NoAccess}); | |
1359 | #return () if defined ($perm->{NoAccess}); | |
1360 | ||
1361 | #print "permission $user $path = " . Dumper ($perm); | |
1362 | ||
1363 | my @ra = keys %$perm; | |
1364 | ||
1365 | #print "roles $user $path = " . join (',', @ra) . "\n"; | |
1366 | ||
1367 | return @ra; | |
1368 | } | |
1369 | ||
1370 | sub permission { | |
1371 | my ($cfg, $user, $path) = @_; | |
1372 | ||
1373 | $user = verify_username($user, 1); | |
1374 | return {} if !$user; | |
1375 | ||
1376 | my @ra = roles($cfg, $user, $path); | |
1377 | ||
1378 | my $privs = {}; | |
1379 | ||
1380 | foreach my $role (@ra) { | |
1381 | if (my $privset = $cfg->{roles}->{$role}) { | |
1382 | foreach my $p (keys %$privset) { | |
1383 | $privs->{$p} = 1; | |
1384 | } | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | #print "priviledges $user $path = " . Dumper ($privs); | |
1389 | ||
1390 | return $privs; | |
1391 | } | |
1392 | ||
1393 | sub check_permissions { | |
1394 | my ($username, $path, $privlist) = @_; | |
1395 | ||
1396 | $path = normalize_path($path); | |
1397 | my $usercfg = cfs_read_file('user.cfg'); | |
1398 | my $perm = permission($usercfg, $username, $path); | |
1399 | ||
1400 | foreach my $priv (split_list($privlist)) { | |
1401 | return undef if !$perm->{$priv}; | |
1402 | }; | |
1403 | ||
1404 | return 1; | |
1405 | } | |
1406 | ||
1407 | 1; |