projects / pve-access-control.git / blame
| Commit | Line | Data |
|---|---|---|
| 2c3a6c0a DM |
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, $noerr) = @_; | |
| 152 | ||
| adf8d771 | 153 | if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) { |
| 2c3a6c0a DM |
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 ($plain =~ m/^PVE:(([A-Za-z0-9\.\-_]+)(\@([A-Za-z0-9\.\-_]+))?):([A-Z0-9]{8})$/) { | |
| 160 | my $username = $1; | |
| 161 | my $timestamp = $5; | |
| 162 | my $ttime = hex($timestamp); | |
| 163 | ||
| 164 | my $age = time() - $ttime; | |
| 165 | ||
| 166 | if (($age > -300) && ($age < $ticket_lifetime)) { | |
| 167 | return wantarray ? ($username, $age) : $username; | |
| 168 | } | |
| 169 | } | |
| 170 | } | |
| 171 | } | |
| 172 | ||
| 173 | die "permission denied - invalid ticket\n" if !$noerr; | |
| 174 | ||
| 175 | return undef; | |
| 176 | } | |
| 177 | ||
| adf8d771 DM |
178 | # VNC tickets |
| 179 | # - they do not contain the username in plain text | |
| 180 | # - they are restricted to a specific resource path (example: '/vms/100') | |
| 181 | sub assemble_vnc_ticket { | |
| 182 | my ($username, $path) = @_; | |
| 183 | ||
| 184 | my $rsa_priv = get_privkey(); | |
| 185 | ||
| 186 | my $timestamp = sprintf("%08X", time()); | |
| 187 | ||
| 188 | my $plain = "PVEVNC:$timestamp"; | |
| 189 | ||
| 190 | $path = normalize_path($path); | |
| 191 | ||
| 192 | my $full = "$plain:$username:$path"; | |
| 193 | ||
| 194 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($full), ''); | |
| 195 | ||
| 196 | return $ticket; | |
| 197 | } | |
| 198 | ||
| 199 | sub verify_vnc_ticket { | |
| 200 | my ($ticket, $username, $path, $noerr) = @_; | |
| 201 | ||
| 202 | if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) { | |
| 203 | my $plain = $1; | |
| 204 | my $sig = $2; | |
| 205 | my $full = "$plain:$username:$path"; | |
| 206 | ||
| 207 | my $rsa_pub = get_pubkey(); | |
| 208 | # Note: sign only match if $username and $path is correct | |
| 209 | if ($rsa_pub->verify($full, decode_base64($sig))) { | |
| 210 | if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) { | |
| 211 | my $ttime = hex($1); | |
| 212 | ||
| 213 | my $age = time() - $ttime; | |
| 214 | ||
| 215 | if (($age > -20) && ($age < 40)) { | |
| 216 | return 1; | |
| 217 | } | |
| 218 | } | |
| 219 | } | |
| 220 | } | |
| 221 | ||
| 222 | die "permission denied - invalid vnc ticket\n" if !$noerr; | |
| 223 | ||
| 224 | return undef; | |
| 225 | } | |
| 226 | ||
| 227 | ||
| 2c3a6c0a DM |
228 | sub authenticate_user_shadow { |
| 229 | my ($userid, $password) = @_; | |
| 230 | ||
| 231 | die "no password\n" if !$password; | |
| 232 | ||
| 233 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
| 234 | ||
| 235 | if ($shadow_cfg->{users}->{$userid}) { | |
| 236 | my $encpw = crypt($password, $shadow_cfg->{users}->{$userid}->{shadow}); | |
| 237 | die "invalid credentials\n" if ($encpw ne $shadow_cfg->{users}->{$userid}->{shadow}); | |
| 238 | } else { | |
| 239 | die "no password set\n"; | |
| 240 | } | |
| 241 | } | |
| 242 | ||
| 243 | sub authenticate_user_pam { | |
| 244 | my ($userid, $password) = @_; | |
| 245 | ||
| 246 | # user (www-data) need to be able to read /etc/passwd /etc/shadow | |
| 247 | ||
| 248 | die "no password\n" if !$password; | |
| 249 | ||
| 250 | my $pamh = new Authen::PAM ('common-auth', $userid, sub { | |
| 251 | my @res; | |
| 252 | while(@_) { | |
| 253 | my $msg_type = shift; | |
| 254 | my $msg = shift; | |
| 255 | push @res, (0, $password); | |
| 256 | } | |
| 257 | push @res, 0; | |
| 258 | return @res; | |
| 259 | }); | |
| 260 | ||
| 261 | if (!ref ($pamh)) { | |
| 262 | my $err = $pamh->pam_strerror($pamh); | |
| 263 | die "error during PAM init: $err"; | |
| 264 | } | |
| 265 | ||
| 266 | my $res; | |
| 267 | ||
| 268 | if (($res = $pamh->pam_authenticate(0)) != PAM_SUCCESS) { | |
| 269 | my $err = $pamh->pam_strerror($res); | |
| 270 | die "$err\n"; | |
| 271 | } | |
| 272 | ||
| 273 | if (($res = $pamh->pam_acct_mgmt (0)) != PAM_SUCCESS) { | |
| 274 | my $err = $pamh->pam_strerror($res); | |
| 275 | die "$err\n"; | |
| 276 | } | |
| 277 | ||
| 278 | $pamh = 0; # call destructor | |
| 279 | } | |
| 280 | ||
| 281 | sub authenticate_user_ad { | |
| 282 | ||
| 283 | my ($entry, $server, $userid, $password) = @_; | |
| 284 | ||
| 285 | my $default_port = $entry->{secure} ? 636: 389; | |
| 286 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
| 287 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
| 288 | my $conn_string = "$scheme://${server}:$port"; | |
| 289 | ||
| 290 | my $ldap = Net::LDAP->new($server) || die "$@\n"; | |
| 291 | ||
| 292 | $userid = "$userid\@$entry->{domain}" | |
| 293 | if $userid !~ m/@/ && $entry->{domain}; | |
| 294 | ||
| 295 | my $res = $ldap->bind($userid, password => $password); | |
| 296 | ||
| 297 | my $code = $res->code(); | |
| 298 | my $err = $res->error; | |
| 299 | ||
| 300 | $ldap->unbind(); | |
| 301 | ||
| 302 | die "$err\n" if ($code); | |
| 303 | } | |
| 304 | ||
| 305 | sub authenticate_user_ldap { | |
| 306 | ||
| 307 | my ($entry, $server, $userid, $password) = @_; | |
| 308 | ||
| 309 | my $default_port = $entry->{secure} ? 636: 389; | |
| 310 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
| 311 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
| 312 | my $conn_string = "$scheme://${server}:$port"; | |
| 313 | ||
| 314 | my $ldap = Net::LDAP->new($conn_string, verify => 'none') || die "$@\n"; | |
| 315 | my $search = $entry->{user_attr} . "=" . $userid; | |
| 316 | my $result = $ldap->search( base => "$entry->{base_dn}", | |
| 317 | scope => "sub", | |
| 318 | filter => "$search", | |
| 319 | attrs => ['dn'] | |
| 320 | ); | |
| 321 | die "no entries returned\n" if !$result->entries; | |
| 322 | my @entries = $result->entries; | |
| 323 | my $res = $ldap->bind($entries[0]->dn, password => $password); | |
| 324 | ||
| 325 | my $code = $res->code(); | |
| 326 | my $err = $res->error; | |
| 327 | ||
| 328 | $ldap->unbind(); | |
| 329 | ||
| 330 | die "$err\n" if ($code); | |
| 331 | } | |
| 332 | ||
| 333 | sub authenticate_user_domain { | |
| 334 | my ($realm, $userid, $password) = @_; | |
| 335 | ||
| 336 | my $domain_cfg = cfs_read_file($domainconfigfile); | |
| 337 | ||
| 338 | die "no auth domain specified" if !$realm; | |
| 339 | ||
| 340 | if ($realm eq 'pam') { | |
| 341 | authenticate_user_pam($userid, $password); | |
| 342 | return; | |
| 343 | } | |
| 344 | ||
| 345 | eval { | |
| 346 | if ($realm eq 'pve') { | |
| 347 | authenticate_user_shadow($userid, $password); | |
| 348 | } else { | |
| 349 | ||
| 350 | my $cfg = $domain_cfg->{$realm}; | |
| 351 | die "auth domain '$realm' does not exists\n" if !$cfg; | |
| 352 | ||
| 353 | if ($cfg->{type} eq 'ad') { | |
| 354 | eval { authenticate_user_ad($cfg, $cfg->{server1}, $userid, $password); }; | |
| 355 | my $err = $@; | |
| 356 | return if !$err; | |
| 357 | die $err if !$cfg->{server2}; | |
| 358 | authenticate_user_ad($cfg, $cfg->{server2}, $userid, $password); | |
| 359 | } elsif ($cfg->{type} eq 'ldap') { | |
| 360 | eval { authenticate_user_ldap($cfg, $cfg->{server1}, $userid, $password); }; | |
| 361 | my $err = $@; | |
| 362 | return if !$err; | |
| 363 | die $err if !$cfg->{server2}; | |
| 364 | authenticate_user_ldap($cfg, $cfg->{server2}, $userid, $password); | |
| 365 | } else { | |
| 366 | die "unknown auth type '$cfg->{type}'\n"; | |
| 367 | } | |
| 368 | } | |
| 369 | }; | |
| 370 | if (my $err = $@) { | |
| 371 | sleep(2); # timeout after failed auth | |
| 372 | die $err; | |
| 373 | } | |
| 374 | } | |
| 375 | ||
| 37d45deb | 376 | sub check_user_exist { |
| 7070c1ae | 377 | my ($usercfg, $username, $noerr) = @_; |
| 2c3a6c0a | 378 | |
| 7070c1ae | 379 | $username = verify_username($username, $noerr); |
| 2c3a6c0a DM |
380 | return undef if !$username; |
| 381 | ||
| 37d45deb DM |
382 | return $usercfg->{users}->{$username} if $usercfg && $usercfg->{users}->{$username}; |
| 383 | ||
| 384 | die "no such user ('$username')\n" if !$noerr; | |
| 385 | ||
| 386 | return undef; | |
| 387 | } | |
| 388 | ||
| 389 | sub check_user_enabled { | |
| 390 | my ($usercfg, $username, $noerr) = @_; | |
| 391 | ||
| 392 | my $data = check_user_exist($usercfg, $username, $noerr); | |
| 393 | return undef if !$data; | |
| 394 | ||
| 395 | return 1 if $data->{enable}; | |
| 2c3a6c0a DM |
396 | |
| 397 | return 1 if $username eq 'root@pam'; # root is always enabled | |
| 398 | ||
| 37d45deb | 399 | die "user '$username' is disabled\n" if !$noerr; |
| 7070c1ae DM |
400 | |
| 401 | return undef; | |
| 2c3a6c0a DM |
402 | } |
| 403 | ||
| 404 | # password should be utf8 encoded | |
| 405 | sub authenticate_user { | |
| 406 | my ($username, $password) = @_; | |
| 407 | ||
| 408 | die "no username specified\n" if !$username; | |
| 409 | ||
| 410 | my ($userid, $realm); | |
| 411 | ||
| 412 | ($username, $userid, $realm) = verify_username($username); | |
| 413 | ||
| 414 | my $usercfg = cfs_read_file('user.cfg'); | |
| 415 | ||
| 7070c1ae DM |
416 | eval { check_user_enabled($usercfg, $username); }; |
| 417 | if (my $err = $@) { | |
| 2c3a6c0a | 418 | sleep(2); |
| 7070c1ae | 419 | die $err; |
| 2c3a6c0a DM |
420 | } |
| 421 | ||
| 422 | my $ctime = time(); | |
| 423 | my $expire = $usercfg->{users}->{$username}->{expire}; | |
| 424 | ||
| 425 | if ($expire && ($expire < $ctime)) { | |
| 426 | sleep(2); | |
| 427 | die "account expired\n" | |
| 428 | } | |
| 429 | ||
| 430 | authenticate_user_domain($realm, $userid, $password); | |
| 431 | ||
| 432 | return $username; | |
| 433 | } | |
| 434 | ||
| 435 | sub delete_shadow_password { | |
| 436 | my ($userid) = @_; | |
| 437 | ||
| 438 | lock_shadow_config(sub { | |
| 439 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
| 440 | delete ($shadow_cfg->{users}->{$userid}) | |
| 441 | if $shadow_cfg->{users}->{$userid}; | |
| 442 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
| 443 | }); | |
| 444 | } | |
| 445 | ||
| 446 | sub store_shadow_password { | |
| 447 | my ($userid, $password) = @_; | |
| 448 | ||
| 449 | lock_shadow_config(sub { | |
| 450 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
| 451 | $shadow_cfg->{users}->{$userid}->{shadow} = encrypt_pw($password); | |
| 452 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
| 453 | }); | |
| 454 | } | |
| 455 | ||
| 456 | sub encrypt_pw { | |
| 457 | my ($pw) = @_; | |
| 458 | ||
| 459 | my $time = substr (Digest::SHA::sha1_base64 (time), 0, 8); | |
| 460 | return crypt (encode("utf8", $pw), "\$5\$$time\$"); | |
| 461 | } | |
| 462 | ||
| 463 | sub store_pam_password { | |
| 464 | my ($userid, $password) = @_; | |
| 465 | ||
| 466 | my $cmd = ['/usr/sbin/usermod']; | |
| 467 | ||
| 468 | my $epw = encrypt_pw($password); | |
| 469 | push @$cmd, '-p', $epw; | |
| 470 | ||
| 471 | push @$cmd, $userid; | |
| 472 | ||
| 473 | run_command($cmd); | |
| 474 | } | |
| 475 | ||
| 476 | sub domain_set_password { | |
| 477 | my ($realm, $userid, $password) = @_; | |
| 478 | ||
| 479 | die "no auth domain specified" if !$realm; | |
| 480 | ||
| 481 | if ($realm eq 'pam') { | |
| 482 | store_pam_password($userid, $password); | |
| 483 | } elsif ($realm eq 'pve') { | |
| 484 | store_shadow_password($userid, $password); | |
| 485 | } else { | |
| 486 | die "can't set password on auth domain '$realm'\n"; | |
| 487 | } | |
| 488 | } | |
| 489 | ||
| 490 | sub add_user_group { | |
| 491 | ||
| 492 | my ($username, $usercfg, $group) = @_; | |
| 493 | $usercfg->{users}->{$username}->{groups}->{$group} = 1; | |
| 494 | $usercfg->{groups}->{$group}->{users}->{$username} = 1; | |
| 495 | } | |
| 496 | ||
| 497 | sub delete_user_group { | |
| 498 | ||
| 499 | my ($username, $usercfg) = @_; | |
| 500 | ||
| 501 | foreach my $group (keys %{$usercfg->{groups}}) { | |
| 502 | ||
| 503 | delete ($usercfg->{groups}->{$group}->{users}->{$username}) | |
| 504 | if $usercfg->{groups}->{$group}->{users}->{$username}; | |
| 505 | } | |
| 506 | } | |
| 507 | ||
| 508 | sub delete_user_acl { | |
| 509 | ||
| 510 | my ($username, $usercfg) = @_; | |
| 511 | ||
| 512 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
| 513 | ||
| 514 | delete ($usercfg->{acl}->{$acl}->{users}->{$username}) | |
| 515 | if $usercfg->{acl}->{$acl}->{users}->{$username}; | |
| 516 | } | |
| 517 | ||
| 518 | } | |
| 519 | sub delete_group_acl { | |
| 520 | ||
| 521 | my ($group, $usercfg) = @_; | |
| 522 | ||
| 523 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
| 524 | ||
| 525 | delete ($usercfg->{acl}->{$acl}->{groups}->{$group}) | |
| 526 | if $usercfg->{acl}->{$acl}->{groups}->{$group}; | |
| 527 | } | |
| 528 | ||
| 529 | } | |
| 530 | ||
| 531 | # we automatically create some predefined roles by splitting privs | |
| 532 | # into 3 groups (per category) | |
| 533 | # root: only root is allowed to do that | |
| 534 | # admin: an administrator can to that | |
| 535 | # user: a normak user/customer can to that | |
| 536 | my $privgroups = { | |
| 537 | VM => { | |
| 538 | root => [], | |
| 539 | admin => [ | |
| 540 | 'VM.Modify', | |
| 541 | 'VM.Allocate', | |
| 542 | 'VM.Migrate', | |
| 543 | 'Permissions.Modify', | |
| 544 | ], | |
| 545 | user => [ | |
| 546 | 'VM.Console', | |
| 547 | 'VM.PowerMgmt', | |
| 548 | ], | |
| 549 | audit => [ | |
| 550 | 'VM.Audit' | |
| 551 | ], | |
| 552 | }, | |
| 553 | Sys => { | |
| 554 | root => [ | |
| 555 | 'Sys.PowerMgmt', | |
| 37d45deb | 556 | 'Sys.Modify', # edit/change node settings |
| 2c3a6c0a DM |
557 | ], |
| 558 | admin => [ | |
| 559 | 'Sys.Console', | |
| 560 | 'Sys.Syslog', | |
| 561 | ], | |
| 562 | user => [], | |
| 563 | audit => [ | |
| 564 | 'Sys.Audit', | |
| 565 | ], | |
| 566 | }, | |
| 567 | Datastore => { | |
| 568 | root => [ | |
| 569 | 'Datastore.Allocate', | |
| 570 | 'Permissions.Modify', | |
| 571 | ], | |
| 572 | admin => [], | |
| 573 | user => [ | |
| 574 | 'Datastore.AllocateSpace', | |
| 575 | ], | |
| 576 | audit => [ | |
| 577 | 'Datastore.Audit', | |
| 578 | ], | |
| 579 | }, | |
| 12683df7 DM |
580 | User => { |
| 581 | root => [ | |
| 582 | ||
| 583 | ], | |
| 584 | admin => [ | |
| 585 | 'User.Modify', | |
| 586 | 'User.Add', | |
| 587 | 'User.Delete', | |
| 588 | ], | |
| 589 | user => [], | |
| 590 | audit => [], | |
| 591 | }, | |
| 2c3a6c0a DM |
592 | }; |
| 593 | ||
| 594 | my $valid_privs = {}; | |
| 595 | ||
| 596 | my $special_roles = { | |
| 597 | 'NoAccess' => {}, # no priviledges | |
| 598 | 'Administrator' => $valid_privs, # all priviledges | |
| 599 | }; | |
| 600 | ||
| 601 | sub create_roles { | |
| 602 | ||
| 603 | foreach my $cat (keys %$privgroups) { | |
| 604 | my $cd = $privgroups->{$cat}; | |
| 605 | foreach my $p (@{$cd->{root}}, @{$cd->{admin}}, | |
| 606 | @{$cd->{user}}, @{$cd->{audit}}) { | |
| 607 | $valid_privs->{$p} = 1; | |
| 608 | } | |
| 609 | foreach my $p (@{$cd->{admin}}, @{$cd->{user}}, @{$cd->{audit}}) { | |
| 610 | ||
| 611 | $special_roles->{"PVE${cat}Admin"}->{$p} = 1; | |
| 612 | $special_roles->{"PVEAdmin"}->{$p} = 1; | |
| 613 | } | |
| 614 | if (scalar(@{$cd->{user}})) { | |
| 615 | foreach my $p (@{$cd->{user}}, @{$cd->{audit}}) { | |
| 616 | $special_roles->{"PVE${cat}User"}->{$p} = 1; | |
| 617 | } | |
| 618 | } | |
| 619 | foreach my $p (@{$cd->{audit}}) { | |
| 620 | $special_roles->{"PVEAuditor"}->{$p} = 1; | |
| 621 | } | |
| 622 | } | |
| 623 | }; | |
| 624 | ||
| 625 | create_roles(); | |
| 626 | ||
| 627 | my $valid_attributes = { | |
| 628 | ad => { | |
| 629 | server1 => '[\w\d]+(.[\w\d]+)*', | |
| 630 | server2 => '[\w\d]+(.[\w\d]+)*', | |
| 631 | domain => '\S+', | |
| af4a8a85 | 632 | port => '\d+', |
| 2c3a6c0a DM |
633 | secure => '', |
| 634 | comment => '.*', | |
| 635 | }, | |
| 636 | ldap => { | |
| 637 | server1 => '[\w\d]+(.[\w\d]+)*', | |
| 638 | server2 => '[\w\d]+(.[\w\d]+)*', | |
| 639 | base_dn => '\w+=[\w\s]+(,\s*\w+=[\w\s]+)*', | |
| 640 | user_attr => '\S{2,}', | |
| 641 | secure => '', | |
| af4a8a85 | 642 | port => '\d+', |
| 2c3a6c0a DM |
643 | comment => '.*', |
| 644 | } | |
| 645 | }; | |
| 646 | ||
| 647 | sub add_role_privs { | |
| 648 | my ($role, $usercfg, $privs) = @_; | |
| 649 | ||
| 650 | return if !$privs; | |
| 651 | ||
| 652 | die "role '$role' does not exist\n" if !$usercfg->{roles}->{$role}; | |
| 653 | ||
| 654 | foreach my $priv (split_list($privs)) { | |
| 655 | if (defined ($valid_privs->{$priv})) { | |
| 656 | $usercfg->{roles}->{$role}->{$priv} = 1; | |
| 657 | } else { | |
| 658 | die "invalid priviledge '$priv'\n"; | |
| 659 | } | |
| 660 | } | |
| 661 | } | |
| 662 | ||
| 663 | sub normalize_path { | |
| 664 | my $path = shift; | |
| 665 | ||
| 666 | $path =~ s|/+|/|; | |
| 667 | ||
| 668 | $path =~ s|/$||; | |
| 669 | ||
| 670 | $path = '/' if !$path; | |
| 671 | ||
| 672 | return undef if $path !~ m|^[[:alnum:]\-\_\/]+$|; | |
| 673 | ||
| 674 | return $path; | |
| 675 | } | |
| 676 | ||
| 677 | my $realm_regex = qr/[A-Za-z][A-Za-z0-9\.\-_]+/; | |
| 678 | ||
| 679 | sub pve_verify_realm { | |
| 680 | my ($realm, $noerr) = @_; | |
| 681 | ||
| 682 | if ($realm !~ m/^${realm_regex}$/) { | |
| 683 | return undef if $noerr; | |
| 684 | die "value does not look like a valid realm\n"; | |
| 685 | } | |
| 686 | return $realm; | |
| 687 | } | |
| 688 | ||
| 689 | PVE::JSONSchema::register_format('pve-userid', \&verify_username); | |
| 690 | sub verify_username { | |
| 691 | my ($username, $noerr) = @_; | |
| 692 | ||
| 693 | $username = '' if !$username; | |
| 694 | my $len = length($username); | |
| 695 | if ($len < 3) { | |
| 696 | die "user name '$username' is too short\n" if !$noerr; | |
| 697 | return undef; | |
| 698 | } | |
| 699 | if ($len > 64) { | |
| 700 | die "user name '$username' is too long ($len > 64)\n" if !$noerr; | |
| 701 | return undef; | |
| 702 | } | |
| 703 | ||
| 704 | # we only allow a limited set of characters (colon is not allowed, | |
| 705 | # because we store usernames in colon separated lists)! | |
| 706 | if ($username =~ m/^([^\s:]+)\@(${realm_regex})$/) { | |
| 707 | return wantarray ? ($username, $1, $2) : $username; | |
| 708 | } | |
| 709 | ||
| 710 | die "value '$username' does not look like a valid user name\n" if !$noerr; | |
| 711 | ||
| 712 | return undef; | |
| 713 | } | |
| 714 | PVE::JSONSchema::register_standard_option('userid', { | |
| 715 | description => "User ID", | |
| 716 | type => 'string', format => 'pve-userid', | |
| 717 | maxLength => 64, | |
| 718 | }); | |
| 719 | ||
| 720 | PVE::JSONSchema::register_standard_option('realm', { | |
| 721 | description => "Authentication domain ID", | |
| 722 | type => 'string', format => 'pve-configid', | |
| 723 | maxLength => 32, | |
| 724 | }); | |
| 725 | ||
| 726 | PVE::JSONSchema::register_format('pve-groupid', \&verify_groupname); | |
| 727 | sub verify_groupname { | |
| 728 | my ($groupname, $noerr) = @_; | |
| 729 | ||
| 730 | if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
| 731 | ||
| 732 | die "group name '$groupname' contains invalid characters\n" if !$noerr; | |
| 733 | ||
| 734 | return undef; | |
| 735 | } | |
| 736 | ||
| 737 | return $groupname; | |
| 738 | } | |
| 739 | ||
| 740 | PVE::JSONSchema::register_format('pve-roleid', \&verify_rolename); | |
| 741 | sub verify_rolename { | |
| 742 | my ($rolename, $noerr) = @_; | |
| 743 | ||
| 744 | if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
| 745 | ||
| 746 | die "role name '$rolename' contains invalid characters\n" if !$noerr; | |
| 747 | ||
| 748 | return undef; | |
| 749 | } | |
| 750 | ||
| 751 | return $rolename; | |
| 752 | } | |
| 753 | ||
| 754 | PVE::JSONSchema::register_format('pve-priv', \&verify_privname); | |
| 755 | sub verify_privname { | |
| 756 | my ($priv, $noerr) = @_; | |
| 757 | ||
| 758 | if (!$valid_privs->{$priv}) { | |
| 759 | die "invalid priviledge '$priv'\n" if !$noerr; | |
| 760 | ||
| 761 | return undef; | |
| 762 | } | |
| 763 | ||
| 764 | return $priv; | |
| 765 | } | |
| 766 | ||
| 767 | sub userconfig_force_defaults { | |
| 768 | my ($cfg) = @_; | |
| 769 | ||
| 770 | foreach my $r (keys %$special_roles) { | |
| 771 | $cfg->{roles}->{$r} = $special_roles->{$r}; | |
| 772 | } | |
| 773 | ||
| 774 | # fixme: remove 'root' group (not required)? | |
| 775 | ||
| 776 | # add root user | |
| 777 | $cfg->{users}->{'root@pam'}->{enable} = 1; | |
| 778 | } | |
| 779 | ||
| 780 | sub parse_user_config { | |
| 781 | my ($filename, $raw) = @_; | |
| 782 | ||
| 783 | my $cfg = {}; | |
| 784 | ||
| 785 | userconfig_force_defaults($cfg); | |
| 786 | ||
| 787 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
| 788 | my $line = $1; | |
| 789 | ||
| 790 | next if $line =~ m/^\s*$/; # skip empty lines | |
| 791 | ||
| 792 | my @data; | |
| 793 | ||
| 794 | foreach my $d (split (/:/, $line)) { | |
| 795 | $d =~ s/^\s+//; | |
| 796 | $d =~ s/\s+$//; | |
| 797 | push @data, $d | |
| 798 | } | |
| 799 | ||
| 800 | my $et = shift @data; | |
| 801 | ||
| 802 | if ($et eq 'user') { | |
| 803 | my ($user, $enable, $expire, $firstname, $lastname, $email, $comment) = @data; | |
| 804 | ||
| 805 | my (undef, undef, $realm) = verify_username($user, 1); | |
| 806 | if (!$realm) { | |
| 807 | warn "user config - ignore user '$user' - invalid user name\n"; | |
| 808 | next; | |
| 809 | } | |
| 810 | ||
| 811 | $enable = $enable ? 1 : 0; | |
| 812 | ||
| 813 | $expire = 0 if !$expire; | |
| 814 | ||
| 815 | if ($expire !~ m/^\d+$/) { | |
| 816 | warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n"; | |
| 817 | next; | |
| 818 | } | |
| 819 | $expire = int($expire); | |
| 820 | ||
| 821 | #if (!verify_groupname ($group, 1)) { | |
| 822 | # warn "user config - ignore user '$user' - invalid characters in group name\n"; | |
| 823 | # next; | |
| 824 | #} | |
| 825 | ||
| 826 | $cfg->{users}->{$user} = { | |
| 827 | enable => $enable, | |
| 828 | # group => $group, | |
| 829 | }; | |
| 830 | $cfg->{users}->{$user}->{firstname} = PVE::Tools::decode_text($firstname) if $firstname; | |
| 831 | $cfg->{users}->{$user}->{lastname} = PVE::Tools::decode_text($lastname) if $lastname; | |
| 832 | $cfg->{users}->{$user}->{email} = $email; | |
| 833 | $cfg->{users}->{$user}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
| 834 | $cfg->{users}->{$user}->{expire} = $expire; | |
| 835 | ||
| 836 | #$cfg->{users}->{$user}->{groups}->{$group} = 1; | |
| 837 | #$cfg->{groups}->{$group}->{$user} = 1; | |
| 838 | ||
| 839 | } elsif ($et eq 'group') { | |
| 840 | my ($group, $userlist, $comment) = @data; | |
| 841 | ||
| 842 | if (!verify_groupname($group, 1)) { | |
| 843 | warn "user config - ignore group '$group' - invalid characters in group name\n"; | |
| 844 | next; | |
| 845 | } | |
| 846 | ||
| 847 | # make sure to add the group (even if there are no members) | |
| 848 | $cfg->{groups}->{$group} = { users => {} } if !$cfg->{groups}->{$group}; | |
| 849 | ||
| 850 | $cfg->{groups}->{$group}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
| 851 | ||
| 852 | foreach my $user (split_list($userlist)) { | |
| 853 | ||
| 854 | if (!verify_username($user, 1)) { | |
| 855 | warn "user config - ignore invalid group member '$user'\n"; | |
| 856 | next; | |
| 857 | } | |
| 858 | ||
| 859 | if ($cfg->{users}->{$user}) { # user exists | |
| 860 | $cfg->{users}->{$user}->{groups}->{$group} = 1; | |
| 861 | $cfg->{groups}->{$group}->{users}->{$user} = 1; | |
| 862 | } else { | |
| 863 | warn "user config - ignore invalid group member '$user'\n"; | |
| 864 | } | |
| 865 | } | |
| 866 | ||
| 867 | } elsif ($et eq 'role') { | |
| 868 | my ($role, $privlist) = @data; | |
| 869 | ||
| 870 | if (!verify_rolename($role, 1)) { | |
| 871 | warn "user config - ignore role '$role' - invalid characters in role name\n"; | |
| 872 | next; | |
| 873 | } | |
| 874 | ||
| 875 | # make sure to add the role (even if there are no privileges) | |
| 876 | $cfg->{roles}->{$role} = {} if !$cfg->{roles}->{$role}; | |
| 877 | ||
| 878 | foreach my $priv (split_list($privlist)) { | |
| 879 | if (defined ($valid_privs->{$priv})) { | |
| 880 | $cfg->{roles}->{$role}->{$priv} = 1; | |
| 881 | } else { | |
| 882 | warn "user config - ignore invalid priviledge '$priv'\n"; | |
| 883 | } | |
| 884 | } | |
| 885 | ||
| 886 | } elsif ($et eq 'acl') { | |
| 887 | my ($propagate, $pathtxt, $uglist, $rolelist) = @data; | |
| 888 | ||
| 889 | if (my $path = normalize_path($pathtxt)) { | |
| 890 | foreach my $role (split_list($rolelist)) { | |
| 891 | ||
| 892 | if (!verify_rolename($role, 1)) { | |
| 893 | warn "user config - ignore invalid role name '$role' in acl\n"; | |
| 894 | next; | |
| 895 | } | |
| 896 | ||
| 897 | foreach my $ug (split_list($uglist)) { | |
| 898 | if ($ug =~ m/^@(\w+)$/) { | |
| 899 | my $group = $1; | |
| 900 | if ($cfg->{groups}->{$group}) { # group exists | |
| 901 | $cfg->{acl}->{$path}->{groups}->{$group}->{$role} = $propagate; | |
| 902 | } else { | |
| 903 | warn "user config - ignore invalid acl group '$group'\n"; | |
| 904 | } | |
| 905 | } elsif (verify_username($ug, 1)) { | |
| 906 | if ($cfg->{users}->{$ug}) { # user exists | |
| 907 | $cfg->{acl}->{$path}->{users}->{$ug}->{$role} = $propagate; | |
| 908 | } else { | |
| 909 | warn "user config - ignore invalid acl member '$ug'\n"; | |
| 910 | } | |
| 911 | } else { | |
| 912 | warn "user config - invalid user/group '$ug' in acl\n"; | |
| 913 | } | |
| 914 | } | |
| 915 | } | |
| 916 | } else { | |
| 917 | warn "user config - ignore invalid path in acl '$pathtxt'\n"; | |
| 918 | } | |
| 919 | } else { | |
| 920 | warn "user config - ignore config line: $line\n"; | |
| 921 | } | |
| 922 | } | |
| 923 | ||
| 924 | userconfig_force_defaults($cfg); | |
| 925 | ||
| 926 | return $cfg; | |
| 927 | } | |
| 928 | ||
| 929 | sub parse_shadow_passwd { | |
| 930 | my ($filename, $raw) = @_; | |
| 931 | ||
| 932 | my $shadow = {}; | |
| 933 | ||
| 934 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
| 935 | my $line = $1; | |
| 936 | ||
| 937 | next if $line =~ m/^\s*$/; # skip empty lines | |
| 938 | ||
| 939 | if ($line !~ m/^\S+:\S+:$/) { | |
| 940 | warn "pve shadow password: ignore invalid line $.\n"; | |
| 941 | next; | |
| 942 | } | |
| 943 | ||
| 944 | my ($userid, $crypt_pass) = split (/:/, $line); | |
| 945 | $shadow->{users}->{$userid}->{shadow} = $crypt_pass; | |
| 946 | } | |
| 947 | ||
| 948 | return $shadow; | |
| 949 | } | |
| 950 | ||
| 951 | sub write_domains { | |
| 952 | my ($filename, $cfg) = @_; | |
| 953 | ||
| 954 | my $data = ''; | |
| 955 | ||
| 956 | my $wrote_default; | |
| 957 | ||
| 958 | foreach my $realm (sort keys %$cfg) { | |
| 959 | my $entry = $cfg->{$realm}; | |
| 960 | my $type = lc($entry->{type}); | |
| 961 | ||
| 962 | next if !$type; | |
| 963 | ||
| 964 | next if ($type eq 'pam') || ($type eq 'pve'); | |
| 965 | ||
| 966 | my $formats = $valid_attributes->{$type}; | |
| 967 | next if !$formats; | |
| 968 | ||
| 969 | $data .= "$type: $realm\n"; | |
| 970 | ||
| 971 | foreach my $k (sort keys %$entry) { | |
| 972 | next if $k eq 'type'; | |
| 973 | my $v = $entry->{$k}; | |
| 974 | if ($k eq 'default') { | |
| 975 | $data .= "\t$k\n" if $v && !$wrote_default; | |
| 976 | $wrote_default = 1; | |
| 977 | } elsif (defined($formats->{$k})) { | |
| 978 | if (!$formats->{$k}) { | |
| 0c156363 | 979 | $data .= "\t$k\n" if $v; |
| 2c3a6c0a DM |
980 | } elsif ($v =~ m/^$formats->{$k}$/) { |
| 981 | $v = PVE::Tools::encode_text($v) if $k eq 'comment'; | |
| 982 | $data .= "\t$k $v\n"; | |
| 983 | } else { | |
| 984 | die "invalid value '$v' for attribute '$k'\n"; | |
| 985 | } | |
| 986 | } else { | |
| 987 | die "invalid attribute '$k' - not supported\n"; | |
| 988 | } | |
| 989 | } | |
| 990 | ||
| 991 | $data .= "\n"; | |
| 992 | } | |
| 993 | ||
| 994 | return $data; | |
| 995 | } | |
| 996 | ||
| 997 | sub parse_domains { | |
| 998 | my ($filename, $raw) = @_; | |
| 999 | ||
| 1000 | my $cfg = {}; | |
| 1001 | ||
| 1002 | my $default; | |
| 1003 | ||
| 1004 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
| 1005 | my $line = $1; | |
| 1006 | ||
| 1007 | next if $line =~ m/^\#/; # skip comment lines | |
| 1008 | next if $line =~ m/^\s*$/; # skip empty lines | |
| 1009 | ||
| 1010 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
| 1011 | my $realm = $2; | |
| 1012 | my $type = lc($1); | |
| 1013 | ||
| 1014 | my $ignore = 0; | |
| 1015 | my $entry; | |
| 1016 | ||
| 1017 | my $formats = $valid_attributes->{$type}; | |
| 1018 | if (!$formats) { | |
| 1019 | $ignore = 1; | |
| 1020 | warn "ignoring domain '$realm' - (unsupported authentication type '$type')\n"; | |
| 1021 | } elsif (!pve_verify_realm($realm, 1)) { | |
| 1022 | $ignore = 1; | |
| 1023 | warn "ignoring domain '$realm' - (illegal characters)\n"; | |
| 1024 | } else { | |
| 1025 | $entry = { type => $type }; | |
| 1026 | } | |
| 1027 | ||
| 1028 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
| 1029 | $line = $1; | |
| 1030 | ||
| 1031 | next if $line =~ m/^\#/; #skip comment lines | |
| 1032 | last if $line =~ m/^\s*$/; | |
| 1033 | ||
| 1034 | next if $ignore; # skip | |
| 1035 | ||
| 1036 | if ($line =~ m/^\s+(default)\s*$/) { | |
| 1037 | $default = $realm if !$default; | |
| 1038 | } elsif ($line =~ m/^\s+(\S+)(\s+(.*\S))?\s*$/) { | |
| 1039 | my ($k, $v) = (lc($1), $3); | |
| 1040 | if (defined($formats->{$k})) { | |
| 1041 | if (!$formats->{$k} && !defined($v)) { | |
| 1042 | $entry->{$k} = 1; | |
| 1043 | } elsif ($formats->{$k} && $v =~ m/^$formats->{$k}$/) { | |
| 1044 | if (!defined($entry->{$k})) { | |
| 1045 | $v = PVE::Tools::decode_text($v) if $k eq 'comment'; | |
| 1046 | $entry->{$k} = $v; | |
| 1047 | } else { | |
| 1048 | warn "ignoring duplicate attribute '$k $v'\n"; | |
| 1049 | } | |
| 1050 | } else { | |
| 1051 | warn "ignoring value '$v' for attribute '$k' - invalid format\n"; | |
| 1052 | } | |
| 1053 | } else { | |
| 1054 | warn "ignoring attribute '$k' - not supported\n"; | |
| 1055 | } | |
| 1056 | } else { | |
| 1057 | warn "ignore config line: $line\n"; | |
| 1058 | } | |
| 1059 | } | |
| 1060 | ||
| 1061 | if ($entry->{server2} && !$entry->{server1}) { | |
| 1062 | $entry->{server1} = $entry->{server2}; | |
| 1063 | delete $entry->{server2}; | |
| 1064 | } | |
| 1065 | ||
| 1066 | if ($ignore) { | |
| 1067 | # do nothing | |
| 1068 | } elsif (!$entry->{server1}) { | |
| 1069 | warn "ignoring domain '$realm' - missing server attribute\n"; | |
| 1070 | } elsif (($entry->{type} eq "ldap") && !$entry->{user_attr}) { | |
| 1071 | warn "ignoring domain '$realm' - missing user attribute\n"; | |
| 1072 | } elsif (($entry->{type} eq "ldap") && !$entry->{base_dn}) { | |
| 1073 | warn "ignoring domain '$realm' - missing base_dn attribute\n"; | |
| 0c156363 DM |
1074 | } elsif (($entry->{type} eq "ad") && !$entry->{domain}) { |
| 1075 | warn "ignoring domain '$realm' - missing domain attribute\n"; | |
| 2c3a6c0a DM |
1076 | } else { |
| 1077 | $cfg->{$realm} = $entry; | |
| 1078 | } | |
| 1079 | ||
| 1080 | } else { | |
| 1081 | warn "ignore config line: $line\n"; | |
| 1082 | } | |
| 1083 | } | |
| 1084 | ||
| 1085 | $cfg->{$default}->{default} = 1 if $default; | |
| 1086 | ||
| 1087 | # add default domains | |
| 1088 | ||
| 1089 | $cfg->{pve} = { | |
| 1090 | type => 'builtin', | |
| 1091 | comment => "Proxmox VE authentication server", | |
| 1092 | }; | |
| 1093 | ||
| 1094 | $cfg->{pam} = { | |
| 1095 | type => 'builtin', | |
| 1096 | comment => "Linux PAM standard authentication", | |
| 1097 | }; | |
| 1098 | ||
| 1099 | return $cfg; | |
| 1100 | } | |
| 1101 | ||
| 1102 | sub write_shadow_config { | |
| 1103 | my ($filename, $cfg) = @_; | |
| 1104 | ||
| 1105 | my $data = ''; | |
| 1106 | foreach my $userid (keys %{$cfg->{users}}) { | |
| 1107 | my $crypt_pass = $cfg->{users}->{$userid}->{shadow}; | |
| 1108 | $data .= "$userid:$crypt_pass:\n"; | |
| 1109 | } | |
| 1110 | ||
| 1111 | return $data | |
| 1112 | } | |
| 1113 | ||
| 1114 | sub write_user_config { | |
| 1115 | my ($filename, $cfg) = @_; | |
| 1116 | ||
| 1117 | my $data = ''; | |
| 1118 | ||
| 1119 | foreach my $user (keys %{$cfg->{users}}) { | |
| 2c3a6c0a DM |
1120 | my $d = $cfg->{users}->{$user}; |
| 1121 | my $firstname = $d->{firstname} ? PVE::Tools::encode_text($d->{firstname}) : ''; | |
| 1122 | my $lastname = $d->{lastname} ? PVE::Tools::encode_text($d->{lastname}) : ''; | |
| 1123 | my $email = $d->{email} || ''; | |
| 1124 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
| 5eabc984 | 1125 | my $expire = int($d->{expire} || 0); |
| 2c3a6c0a DM |
1126 | my $enable = $d->{enable} ? 1 : 0; |
| 1127 | $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:\n"; | |
| 1128 | } | |
| 1129 | ||
| 1130 | $data .= "\n"; | |
| 1131 | ||
| 1132 | foreach my $group (keys %{$cfg->{groups}}) { | |
| 1133 | my $d = $cfg->{groups}->{$group}; | |
| 1134 | my $list = join (',', keys %{$d->{users}}); | |
| 1135 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
| 1136 | $data .= "group:$group:$list:$comment:\n"; | |
| 1137 | } | |
| 1138 | ||
| 1139 | $data .= "\n"; | |
| 1140 | ||
| 1141 | foreach my $role (keys %{$cfg->{roles}}) { | |
| 1142 | next if $special_roles->{$role}; | |
| 1143 | ||
| 1144 | my $d = $cfg->{roles}->{$role}; | |
| 1145 | my $list = join (',', keys %$d); | |
| 1146 | $data .= "role:$role:$list:\n"; | |
| 1147 | } | |
| 1148 | ||
| 1149 | $data .= "\n"; | |
| 1150 | ||
| 1151 | foreach my $path (sort keys %{$cfg->{acl}}) { | |
| 1152 | my $d = $cfg->{acl}->{$path}; | |
| 1153 | ||
| 1154 | my $ra = {}; | |
| 1155 | ||
| 1156 | foreach my $group (keys %{$d->{groups}}) { | |
| 1157 | my $l0 = ''; | |
| 1158 | my $l1 = ''; | |
| 1159 | foreach my $role (sort keys %{$d->{groups}->{$group}}) { | |
| 1160 | my $propagate = $d->{groups}->{$group}->{$role}; | |
| 1161 | if ($propagate) { | |
| 1162 | $l1 .= ',' if $l1; | |
| 1163 | $l1 .= $role; | |
| 1164 | } else { | |
| 1165 | $l0 .= ',' if $l0; | |
| 1166 | $l0 .= $role; | |
| 1167 | } | |
| 1168 | } | |
| 1169 | $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0; | |
| 1170 | $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1; | |
| 1171 | } | |
| 1172 | ||
| 1173 | foreach my $user (keys %{$d->{users}}) { | |
| 1174 | # no need to save, because root is always 'Administartor' | |
| 1175 | next if $user eq 'root@pam'; | |
| 1176 | ||
| 1177 | my $l0 = ''; | |
| 1178 | my $l1 = ''; | |
| 1179 | foreach my $role (sort keys %{$d->{users}->{$user}}) { | |
| 1180 | my $propagate = $d->{users}->{$user}->{$role}; | |
| 1181 | if ($propagate) { | |
| 1182 | $l1 .= ',' if $l1; | |
| 1183 | $l1 .= $role; | |
| 1184 | } else { | |
| 1185 | $l0 .= ',' if $l0; | |
| 1186 | $l0 .= $role; | |
| 1187 | } | |
| 1188 | } | |
| 1189 | $ra->{0}->{$l0}->{$user} = 1 if $l0; | |
| 1190 | $ra->{1}->{$l1}->{$user} = 1 if $l1; | |
| 1191 | } | |
| 1192 | ||
| 1193 | foreach my $rolelist (sort keys %{$ra->{0}}) { | |
| 1194 | my $uglist = join (',', keys %{$ra->{0}->{$rolelist}}); | |
| 1195 | $data .= "acl:0:$path:$uglist:$rolelist:\n"; | |
| 1196 | } | |
| 1197 | foreach my $rolelist (sort keys %{$ra->{1}}) { | |
| 1198 | my $uglist = join (',', keys %{$ra->{1}->{$rolelist}}); | |
| 1199 | $data .= "acl:1:$path:$uglist:$rolelist:\n"; | |
| 1200 | } | |
| 1201 | } | |
| 1202 | ||
| 1203 | return $data; | |
| 1204 | } | |
| 1205 | ||
| 1206 | sub roles { | |
| 1207 | my ($cfg, $user, $path) = @_; | |
| 1208 | ||
| 1209 | return 'Administrator' if $user eq 'root@pam'; # root can do anything | |
| 1210 | ||
| 1211 | my $perm = {}; | |
| 1212 | ||
| 1213 | foreach my $p (sort keys %{$cfg->{acl}}) { | |
| 1214 | my $final = ($path eq $p); | |
| 1215 | ||
| 1216 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); | |
| 1217 | ||
| 1218 | my $acl = $cfg->{acl}->{$p}; | |
| 1219 | ||
| 1220 | #print "CHECKACL $path $p\n"; | |
| 1221 | #print "ACL $path = " . Dumper ($acl); | |
| 1222 | ||
| 1223 | if (my $ri = $acl->{users}->{$user}) { | |
| 1224 | my $new; | |
| 1225 | foreach my $role (keys %$ri) { | |
| 1226 | my $propagate = $ri->{$role}; | |
| 1227 | if ($final || $propagate) { | |
| 1228 | #print "APPLY ROLE $p $user $role\n"; | |
| 1229 | $new = {} if !$new; | |
| 1230 | $new->{$role} = 1; | |
| 1231 | } | |
| 1232 | } | |
| 1233 | if ($new) { | |
| 1234 | $perm = $new; # overwrite previous settings | |
| 1235 | next; # user privs always override group privs | |
| 1236 | } | |
| 1237 | } | |
| 1238 | ||
| 1239 | my $new; | |
| 1240 | foreach my $g (keys %{$acl->{groups}}) { | |
| 1241 | next if !$cfg->{groups}->{$g}->{users}->{$user}; | |
| 1242 | if (my $ri = $acl->{groups}->{$g}) { | |
| 1243 | foreach my $role (keys %$ri) { | |
| 1244 | my $propagate = $ri->{$role}; | |
| 1245 | if ($final || $propagate) { | |
| 1246 | #print "APPLY ROLE $p \@$g $role\n"; | |
| 1247 | $new = {} if !$new; | |
| 1248 | $new->{$role} = 1; | |
| 1249 | } | |
| 1250 | } | |
| 1251 | } | |
| 1252 | } | |
| 1253 | if ($new) { | |
| 1254 | $perm = $new; # overwrite previous settings | |
| 1255 | next; | |
| 1256 | } | |
| 1257 | ||
| 1258 | #die "what herea?"; | |
| 1259 | } | |
| 1260 | ||
| 1261 | my $res = {}; | |
| 1262 | if (!defined ($perm->{NoAccess})) { | |
| 1263 | $res = $perm; | |
| 1264 | } | |
| 1265 | ||
| 1266 | #print "permission $user $path = " . Dumper ($perm); | |
| 1267 | ||
| 1268 | my @ra = keys %$res; | |
| 1269 | ||
| 1270 | #print "roles $user $path = " . join (',', @ra) . "\n"; | |
| 1271 | ||
| 1272 | return @ra; | |
| 1273 | } | |
| 1274 | ||
| 1275 | sub permission { | |
| 1276 | my ($cfg, $user, $path) = @_; | |
| 1277 | ||
| 1278 | $user = verify_username($user, 1); | |
| 1279 | return {} if !$user; | |
| 1280 | ||
| 1281 | my @ra = roles($cfg, $user, $path); | |
| 1282 | ||
| 1283 | my $privs = {}; | |
| 1284 | ||
| 1285 | foreach my $role (@ra) { | |
| 1286 | if (my $privset = $cfg->{roles}->{$role}) { | |
| 1287 | foreach my $p (keys %$privset) { | |
| 1288 | $privs->{$p} = 1; | |
| 1289 | } | |
| 1290 | } | |
| 1291 | } | |
| 1292 | ||
| 1293 | #print "priviledges $user $path = " . Dumper ($privs); | |
| 1294 | ||
| 1295 | return $privs; | |
| 1296 | } | |
| 1297 | ||
| 1298 | sub check_permissions { | |
| 1299 | my ($username, $path, $privlist) = @_; | |
| 1300 | ||
| 1301 | $path = normalize_path($path); | |
| 1302 | my $usercfg = cfs_read_file('user.cfg'); | |
| 1303 | my $perm = permission($usercfg, $username, $path); | |
| 1304 | ||
| 1305 | foreach my $priv (split_list($privlist)) { | |
| 1306 | return undef if !$perm->{$priv}; | |
| 1307 | }; | |
| 1308 | ||
| 1309 | return 1; | |
| 1310 | } | |
| 1311 | ||
| 1312 | 1; |