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