| 1 | package PVE::AccessControl; |
| 2 | |
| 3 | use strict; |
| 4 | use warnings; |
| 5 | use Encode; |
| 6 | use Crypt::OpenSSL::Random; |
| 7 | use Crypt::OpenSSL::RSA; |
| 8 | use Net::SSLeay; |
| 9 | use Net::IP; |
| 10 | use MIME::Base64; |
| 11 | use Digest::SHA; |
| 12 | use Digest::HMAC_SHA1; |
| 13 | use URI::Escape; |
| 14 | use LWP::UserAgent; |
| 15 | use PVE::Tools qw(run_command lock_file file_get_contents split_list safe_print); |
| 16 | use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file); |
| 17 | use PVE::JSONSchema; |
| 18 | |
| 19 | use PVE::Auth::Plugin; |
| 20 | use PVE::Auth::AD; |
| 21 | use PVE::Auth::LDAP; |
| 22 | use PVE::Auth::PVE; |
| 23 | use PVE::Auth::PAM; |
| 24 | |
| 25 | use Data::Dumper; # fixme: remove |
| 26 | |
| 27 | # load and initialize all plugins |
| 28 | |
| 29 | PVE::Auth::AD->register(); |
| 30 | PVE::Auth::LDAP->register(); |
| 31 | PVE::Auth::PVE->register(); |
| 32 | PVE::Auth::PAM->register(); |
| 33 | PVE::Auth::Plugin->init(); |
| 34 | |
| 35 | # $authdir must be writable by root only! |
| 36 | my $confdir = "/etc/pve"; |
| 37 | my $authdir = "$confdir/priv"; |
| 38 | my $authprivkeyfn = "$authdir/authkey.key"; |
| 39 | my $authpubkeyfn = "$confdir/authkey.pub"; |
| 40 | my $pve_www_key_fn = "$confdir/pve-www.key"; |
| 41 | |
| 42 | my $ticket_lifetime = 3600*2; # 2 hours |
| 43 | |
| 44 | Crypt::OpenSSL::RSA->import_random_seed(); |
| 45 | |
| 46 | cfs_register_file('user.cfg', |
| 47 | \&parse_user_config, |
| 48 | \&write_user_config); |
| 49 | |
| 50 | |
| 51 | sub verify_username { |
| 52 | PVE::Auth::Plugin::verify_username(@_); |
| 53 | } |
| 54 | |
| 55 | sub pve_verify_realm { |
| 56 | PVE::Auth::Plugin::pve_verify_realm(@_); |
| 57 | } |
| 58 | |
| 59 | sub lock_user_config { |
| 60 | my ($code, $errmsg) = @_; |
| 61 | |
| 62 | cfs_lock_file("user.cfg", undef, $code); |
| 63 | if (my $err = $@) { |
| 64 | $errmsg ? die "$errmsg: $err" : die $err; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | my $pve_auth_pub_key; |
| 69 | sub get_pubkey { |
| 70 | |
| 71 | return $pve_auth_pub_key if $pve_auth_pub_key; |
| 72 | |
| 73 | my $input = PVE::Tools::file_get_contents($authpubkeyfn); |
| 74 | |
| 75 | $pve_auth_pub_key = Crypt::OpenSSL::RSA->new_public_key($input); |
| 76 | |
| 77 | return $pve_auth_pub_key; |
| 78 | } |
| 79 | |
| 80 | my $csrf_prevention_secret; |
| 81 | my $get_csrfr_secret = sub { |
| 82 | if (!$csrf_prevention_secret) { |
| 83 | my $input = PVE::Tools::file_get_contents($pve_www_key_fn); |
| 84 | $csrf_prevention_secret = Digest::SHA::sha1_base64($input); |
| 85 | } |
| 86 | return $csrf_prevention_secret; |
| 87 | }; |
| 88 | |
| 89 | sub assemble_csrf_prevention_token { |
| 90 | my ($username) = @_; |
| 91 | |
| 92 | my $timestamp = sprintf("%08X", time()); |
| 93 | |
| 94 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); |
| 95 | |
| 96 | return "$timestamp:$digest"; |
| 97 | } |
| 98 | |
| 99 | sub verify_csrf_prevention_token { |
| 100 | my ($username, $token, $noerr) = @_; |
| 101 | |
| 102 | if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) { |
| 103 | my $sig = $2; |
| 104 | my $timestamp = $1; |
| 105 | my $ttime = hex($timestamp); |
| 106 | |
| 107 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); |
| 108 | |
| 109 | my $age = time() - $ttime; |
| 110 | return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime); |
| 111 | } |
| 112 | |
| 113 | die "Permission denied - invalid csrf token\n" if !$noerr; |
| 114 | |
| 115 | return undef; |
| 116 | } |
| 117 | |
| 118 | my $pve_auth_priv_key; |
| 119 | sub get_privkey { |
| 120 | |
| 121 | return $pve_auth_priv_key if $pve_auth_priv_key; |
| 122 | |
| 123 | my $input = PVE::Tools::file_get_contents($authprivkeyfn); |
| 124 | |
| 125 | $pve_auth_priv_key = Crypt::OpenSSL::RSA->new_private_key($input); |
| 126 | |
| 127 | return $pve_auth_priv_key; |
| 128 | } |
| 129 | |
| 130 | sub assemble_ticket { |
| 131 | my ($username) = @_; |
| 132 | |
| 133 | my $rsa_priv = get_privkey(); |
| 134 | |
| 135 | my $timestamp = sprintf("%08X", time()); |
| 136 | |
| 137 | my $plain = "PVE:$username:$timestamp"; |
| 138 | |
| 139 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($plain), ''); |
| 140 | |
| 141 | return $ticket; |
| 142 | } |
| 143 | |
| 144 | sub verify_ticket { |
| 145 | my ($ticket, $noerr) = @_; |
| 146 | |
| 147 | if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) { |
| 148 | my $plain = $1; |
| 149 | my $sig = $2; |
| 150 | |
| 151 | my $rsa_pub = get_pubkey(); |
| 152 | if ($rsa_pub->verify($plain, decode_base64($sig))) { |
| 153 | if ($plain =~ m/^PVE:(\S+):([A-Z0-9]{8})$/) { |
| 154 | my $username = $1; |
| 155 | my $timestamp = $2; |
| 156 | my $ttime = hex($timestamp); |
| 157 | |
| 158 | my $age = time() - $ttime; |
| 159 | |
| 160 | if (PVE::Auth::Plugin::verify_username($username, 1) && |
| 161 | ($age > -300) && ($age < $ticket_lifetime)) { |
| 162 | return wantarray ? ($username, $age) : $username; |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | die "permission denied - invalid ticket\n" if !$noerr; |
| 169 | |
| 170 | return undef; |
| 171 | } |
| 172 | |
| 173 | # VNC tickets |
| 174 | # - they do not contain the username in plain text |
| 175 | # - they are restricted to a specific resource path (example: '/vms/100') |
| 176 | sub assemble_vnc_ticket { |
| 177 | my ($username, $path) = @_; |
| 178 | |
| 179 | my $rsa_priv = get_privkey(); |
| 180 | |
| 181 | my $timestamp = sprintf("%08X", time()); |
| 182 | |
| 183 | my $plain = "PVEVNC:$timestamp"; |
| 184 | |
| 185 | $path = normalize_path($path); |
| 186 | |
| 187 | my $full = "$plain:$username:$path"; |
| 188 | |
| 189 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($full), ''); |
| 190 | |
| 191 | return $ticket; |
| 192 | } |
| 193 | |
| 194 | sub verify_vnc_ticket { |
| 195 | my ($ticket, $username, $path, $noerr) = @_; |
| 196 | |
| 197 | if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) { |
| 198 | my $plain = $1; |
| 199 | my $sig = $2; |
| 200 | my $full = "$plain:$username:$path"; |
| 201 | |
| 202 | my $rsa_pub = get_pubkey(); |
| 203 | # Note: sign only match if $username and $path is correct |
| 204 | if ($rsa_pub->verify($full, decode_base64($sig))) { |
| 205 | if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) { |
| 206 | my $ttime = hex($1); |
| 207 | |
| 208 | my $age = time() - $ttime; |
| 209 | |
| 210 | if (($age > -20) && ($age < 40)) { |
| 211 | return 1; |
| 212 | } |
| 213 | } |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | die "permission denied - invalid vnc ticket\n" if !$noerr; |
| 218 | |
| 219 | return undef; |
| 220 | } |
| 221 | |
| 222 | sub assemble_spice_ticket { |
| 223 | my ($username, $vmid, $node) = @_; |
| 224 | |
| 225 | my $rsa_priv = get_privkey(); |
| 226 | |
| 227 | my $timestamp = sprintf("%08x", time()); |
| 228 | |
| 229 | my $randomstr = "PVESPICE:$timestamp:$vmid:$node:" . rand(10); |
| 230 | |
| 231 | # this should be uses as one-time password |
| 232 | # max length is 60 chars (spice limit) |
| 233 | # we pass this to qemu set_pasword and limit lifetime there |
| 234 | # keep this secret |
| 235 | my $ticket = Digest::SHA::sha1_hex($rsa_priv->sign($randomstr)); |
| 236 | |
| 237 | # Note: spice proxy connects with HTTP, so $proxyticket is exposed to public |
| 238 | # we use a signature/timestamp to make sure nobody can fake such ticket |
| 239 | # an attacker can use this $proxyticket, but he will fail because $ticket is |
| 240 | # private. |
| 241 | # The proxy need to be able to extract/verify the ticket |
| 242 | # Note: data needs to be lower case only, because virt-viewer needs that |
| 243 | # Note: RSA signature are too long (>=256 charaters) and makes problems with remote-viewer |
| 244 | |
| 245 | my $secret = &$get_csrfr_secret(); |
| 246 | my $plain = "pvespiceproxy:$timestamp:$vmid:" . lc($node); |
| 247 | |
| 248 | # produces 40 characters |
| 249 | my $sig = unpack("H*", Digest::SHA::sha1($plain, &$get_csrfr_secret())); |
| 250 | |
| 251 | #my $sig = unpack("H*", $rsa_priv->sign($plain)); # this produce too long strings (512) |
| 252 | |
| 253 | my $proxyticket = $plain . "::" . $sig; |
| 254 | |
| 255 | return ($ticket, $proxyticket); |
| 256 | } |
| 257 | |
| 258 | sub verify_spice_connect_url { |
| 259 | my ($connect_str) = @_; |
| 260 | |
| 261 | # Note: we pass the spice ticket as 'host', so the |
| 262 | # spice viewer connects with "$ticket:$port" |
| 263 | |
| 264 | return undef if !$connect_str; |
| 265 | |
| 266 | if ($connect_str =~m/^pvespiceproxy:([a-z0-9]{8}):(\d+):(\S+)::([a-z0-9]{40}):(\d+)$/) { |
| 267 | my ($timestamp, $vmid, $node, $hexsig, $port) = ($1, $2, $3, $4, $5, $6); |
| 268 | my $ttime = hex($timestamp); |
| 269 | my $age = time() - $ttime; |
| 270 | |
| 271 | # use very limited lifetime - is this enough? |
| 272 | return undef if !(($age > -20) && ($age < 40)); |
| 273 | |
| 274 | my $plain = "pvespiceproxy:$timestamp:$vmid:$node"; |
| 275 | my $sig = unpack("H*", Digest::SHA::sha1($plain, &$get_csrfr_secret())); |
| 276 | |
| 277 | if ($sig eq $hexsig) { |
| 278 | return ($vmid, $node, $port); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | return undef; |
| 283 | } |
| 284 | |
| 285 | sub read_x509_subject_spice { |
| 286 | my ($filename) = @_; |
| 287 | |
| 288 | # read x509 subject |
| 289 | my $bio = Net::SSLeay::BIO_new_file($filename, 'r'); |
| 290 | my $x509 = Net::SSLeay::PEM_read_bio_X509($bio); |
| 291 | Net::SSLeay::BIO_free($bio); |
| 292 | my $nameobj = Net::SSLeay::X509_get_subject_name($x509); |
| 293 | my $subject = Net::SSLeay::X509_NAME_oneline($nameobj); |
| 294 | Net::SSLeay::X509_free($x509); |
| 295 | |
| 296 | # remote-viewer wants comma as seperator (not '/') |
| 297 | $subject =~ s!^/!!; |
| 298 | $subject =~ s!/(\w+=)!,$1!g; |
| 299 | |
| 300 | return $subject; |
| 301 | } |
| 302 | |
| 303 | # helper to generate SPICE remote-viewer configuration |
| 304 | sub remote_viewer_config { |
| 305 | my ($authuser, $vmid, $node, $proxy, $title, $port) = @_; |
| 306 | |
| 307 | if (!$proxy) { |
| 308 | my $host = `hostname -f` || PVE::INotify::nodename(); |
| 309 | chomp $host; |
| 310 | $proxy = $host; |
| 311 | } |
| 312 | |
| 313 | my ($ticket, $proxyticket) = assemble_spice_ticket($authuser, $vmid, $node); |
| 314 | |
| 315 | my $filename = "/etc/pve/local/pve-ssl.pem"; |
| 316 | my $subject = read_x509_subject_spice($filename); |
| 317 | |
| 318 | my $cacert = PVE::Tools::file_get_contents("/etc/pve/pve-root-ca.pem", 8192); |
| 319 | $cacert =~ s/\n/\\n/g; |
| 320 | |
| 321 | $proxy = "[$proxy]" if Net::IP::ip_is_ipv6($proxy); |
| 322 | my $config = { |
| 323 | 'secure-attention' => "Ctrl+Alt+Ins", |
| 324 | 'toggle-fullscreen' => "Shift+F11", |
| 325 | 'release-cursor' => "Ctrl+Alt+R", |
| 326 | type => 'spice', |
| 327 | title => $title, |
| 328 | host => $proxyticket, # this break tls hostname verification, so we need to use 'host-subject' |
| 329 | proxy => "http://$proxy:3128", |
| 330 | 'tls-port' => $port, |
| 331 | 'host-subject' => $subject, |
| 332 | ca => $cacert, |
| 333 | password => $ticket, |
| 334 | 'delete-this-file' => 1, |
| 335 | }; |
| 336 | |
| 337 | return ($ticket, $proxyticket, $config); |
| 338 | } |
| 339 | |
| 340 | sub check_user_exist { |
| 341 | my ($usercfg, $username, $noerr) = @_; |
| 342 | |
| 343 | $username = PVE::Auth::Plugin::verify_username($username, $noerr); |
| 344 | return undef if !$username; |
| 345 | |
| 346 | return $usercfg->{users}->{$username} if $usercfg && $usercfg->{users}->{$username}; |
| 347 | |
| 348 | die "no such user ('$username')\n" if !$noerr; |
| 349 | |
| 350 | return undef; |
| 351 | } |
| 352 | |
| 353 | sub check_user_enabled { |
| 354 | my ($usercfg, $username, $noerr) = @_; |
| 355 | |
| 356 | my $data = check_user_exist($usercfg, $username, $noerr); |
| 357 | return undef if !$data; |
| 358 | |
| 359 | return 1 if $data->{enable}; |
| 360 | |
| 361 | die "user '$username' is disabled\n" if !$noerr; |
| 362 | |
| 363 | return undef; |
| 364 | } |
| 365 | |
| 366 | sub verify_one_time_pw { |
| 367 | my ($usercfg, $username, $tfa_cfg, $otp) = @_; |
| 368 | |
| 369 | my $type = $tfa_cfg->{type}; |
| 370 | |
| 371 | die "missing one time password for Factor-two authentication '$type'\n" if !$otp; |
| 372 | |
| 373 | # fixme: proxy support? |
| 374 | my $proxy; |
| 375 | |
| 376 | if ($type eq 'yubico') { |
| 377 | my $keys = $usercfg->{users}->{$username}->{keys}; |
| 378 | yubico_verify_otp($otp, $keys, $tfa_cfg->{url}, $tfa_cfg->{id}, $tfa_cfg->{key}, $proxy); |
| 379 | } elsif ($type eq 'oath') { |
| 380 | my $keys = $usercfg->{users}->{$username}->{keys}; |
| 381 | oath_verify_otp($otp, $keys, $tfa_cfg->{step}, $tfa_cfg->{digits}); |
| 382 | } else { |
| 383 | die "unknown tfa type '$type'\n"; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | # password should be utf8 encoded |
| 388 | # Note: some pluging delay/sleep if auth fails |
| 389 | sub authenticate_user { |
| 390 | my ($username, $password, $otp) = @_; |
| 391 | |
| 392 | die "no username specified\n" if !$username; |
| 393 | |
| 394 | my ($ruid, $realm); |
| 395 | |
| 396 | ($username, $ruid, $realm) = PVE::Auth::Plugin::verify_username($username); |
| 397 | |
| 398 | my $usercfg = cfs_read_file('user.cfg'); |
| 399 | |
| 400 | check_user_enabled($usercfg, $username); |
| 401 | |
| 402 | my $ctime = time(); |
| 403 | my $expire = $usercfg->{users}->{$username}->{expire}; |
| 404 | |
| 405 | die "account expired\n" if $expire && ($expire < $ctime); |
| 406 | |
| 407 | my $domain_cfg = cfs_read_file('domains.cfg'); |
| 408 | |
| 409 | my $cfg = $domain_cfg->{ids}->{$realm}; |
| 410 | die "auth domain '$realm' does not exists\n" if !$cfg; |
| 411 | my $plugin = PVE::Auth::Plugin->lookup($cfg->{type}); |
| 412 | $plugin->authenticate_user($cfg, $realm, $ruid, $password); |
| 413 | |
| 414 | if ($cfg->{tfa}) { |
| 415 | my $tfa_cfg = PVE::Auth::Plugin::parse_tfa_config($cfg->{tfa}); |
| 416 | verify_one_time_pw($usercfg, $username, $tfa_cfg, $otp); |
| 417 | } |
| 418 | |
| 419 | return $username; |
| 420 | } |
| 421 | |
| 422 | sub domain_set_password { |
| 423 | my ($realm, $username, $password) = @_; |
| 424 | |
| 425 | die "no auth domain specified" if !$realm; |
| 426 | |
| 427 | my $domain_cfg = cfs_read_file('domains.cfg'); |
| 428 | |
| 429 | my $cfg = $domain_cfg->{ids}->{$realm}; |
| 430 | die "auth domain '$realm' does not exists\n" if !$cfg; |
| 431 | my $plugin = PVE::Auth::Plugin->lookup($cfg->{type}); |
| 432 | $plugin->store_password($cfg, $realm, $username, $password); |
| 433 | } |
| 434 | |
| 435 | sub add_user_group { |
| 436 | my ($username, $usercfg, $group) = @_; |
| 437 | |
| 438 | $usercfg->{users}->{$username}->{groups}->{$group} = 1; |
| 439 | $usercfg->{groups}->{$group}->{users}->{$username} = 1; |
| 440 | } |
| 441 | |
| 442 | sub delete_user_group { |
| 443 | my ($username, $usercfg) = @_; |
| 444 | |
| 445 | foreach my $group (keys %{$usercfg->{groups}}) { |
| 446 | |
| 447 | delete ($usercfg->{groups}->{$group}->{users}->{$username}) |
| 448 | if $usercfg->{groups}->{$group}->{users}->{$username}; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | sub delete_user_acl { |
| 453 | my ($username, $usercfg) = @_; |
| 454 | |
| 455 | foreach my $acl (keys %{$usercfg->{acl}}) { |
| 456 | |
| 457 | delete ($usercfg->{acl}->{$acl}->{users}->{$username}) |
| 458 | if $usercfg->{acl}->{$acl}->{users}->{$username}; |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | sub delete_group_acl { |
| 463 | my ($group, $usercfg) = @_; |
| 464 | |
| 465 | foreach my $acl (keys %{$usercfg->{acl}}) { |
| 466 | |
| 467 | delete ($usercfg->{acl}->{$acl}->{groups}->{$group}) |
| 468 | if $usercfg->{acl}->{$acl}->{groups}->{$group}; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | sub delete_pool_acl { |
| 473 | my ($pool, $usercfg) = @_; |
| 474 | |
| 475 | my $path = "/pool/$pool"; |
| 476 | |
| 477 | delete ($usercfg->{acl}->{$path}) |
| 478 | } |
| 479 | |
| 480 | # we automatically create some predefined roles by splitting privs |
| 481 | # into 3 groups (per category) |
| 482 | # root: only root is allowed to do that |
| 483 | # admin: an administrator can to that |
| 484 | # user: a normak user/customer can to that |
| 485 | my $privgroups = { |
| 486 | VM => { |
| 487 | root => [], |
| 488 | admin => [ |
| 489 | 'VM.Config.Disk', |
| 490 | 'VM.Config.CPU', |
| 491 | 'VM.Config.Memory', |
| 492 | 'VM.Config.Network', |
| 493 | 'VM.Config.HWType', |
| 494 | 'VM.Config.Options', # covers all other things |
| 495 | 'VM.Allocate', |
| 496 | 'VM.Clone', |
| 497 | 'VM.Migrate', |
| 498 | 'VM.Monitor', |
| 499 | 'VM.Snapshot', |
| 500 | ], |
| 501 | user => [ |
| 502 | 'VM.Config.CDROM', # change CDROM media |
| 503 | 'VM.Console', |
| 504 | 'VM.Backup', |
| 505 | 'VM.PowerMgmt', |
| 506 | ], |
| 507 | audit => [ |
| 508 | 'VM.Audit', |
| 509 | ], |
| 510 | }, |
| 511 | Sys => { |
| 512 | root => [ |
| 513 | 'Sys.PowerMgmt', |
| 514 | 'Sys.Modify', # edit/change node settings |
| 515 | ], |
| 516 | admin => [ |
| 517 | 'Permissions.Modify', |
| 518 | 'Sys.Console', |
| 519 | 'Sys.Syslog', |
| 520 | ], |
| 521 | user => [], |
| 522 | audit => [ |
| 523 | 'Sys.Audit', |
| 524 | ], |
| 525 | }, |
| 526 | Datastore => { |
| 527 | root => [], |
| 528 | admin => [ |
| 529 | 'Datastore.Allocate', |
| 530 | 'Datastore.AllocateTemplate', |
| 531 | ], |
| 532 | user => [ |
| 533 | 'Datastore.AllocateSpace', |
| 534 | ], |
| 535 | audit => [ |
| 536 | 'Datastore.Audit', |
| 537 | ], |
| 538 | }, |
| 539 | User => { |
| 540 | root => [ |
| 541 | 'Realm.Allocate', |
| 542 | ], |
| 543 | admin => [ |
| 544 | 'User.Modify', |
| 545 | 'Group.Allocate', # edit/change group settings |
| 546 | 'Realm.AllocateUser', |
| 547 | ], |
| 548 | user => [], |
| 549 | audit => [], |
| 550 | }, |
| 551 | Pool => { |
| 552 | root => [], |
| 553 | admin => [ |
| 554 | 'Pool.Allocate', # create/delete pools |
| 555 | ], |
| 556 | user => [], |
| 557 | audit => [], |
| 558 | }, |
| 559 | }; |
| 560 | |
| 561 | my $valid_privs = {}; |
| 562 | |
| 563 | my $special_roles = { |
| 564 | 'NoAccess' => {}, # no priviledges |
| 565 | 'Administrator' => $valid_privs, # all priviledges |
| 566 | }; |
| 567 | |
| 568 | sub create_roles { |
| 569 | |
| 570 | foreach my $cat (keys %$privgroups) { |
| 571 | my $cd = $privgroups->{$cat}; |
| 572 | foreach my $p (@{$cd->{root}}, @{$cd->{admin}}, |
| 573 | @{$cd->{user}}, @{$cd->{audit}}) { |
| 574 | $valid_privs->{$p} = 1; |
| 575 | } |
| 576 | foreach my $p (@{$cd->{admin}}, @{$cd->{user}}, @{$cd->{audit}}) { |
| 577 | |
| 578 | $special_roles->{"PVE${cat}Admin"}->{$p} = 1; |
| 579 | $special_roles->{"PVEAdmin"}->{$p} = 1; |
| 580 | } |
| 581 | if (scalar(@{$cd->{user}})) { |
| 582 | foreach my $p (@{$cd->{user}}, @{$cd->{audit}}) { |
| 583 | $special_roles->{"PVE${cat}User"}->{$p} = 1; |
| 584 | } |
| 585 | } |
| 586 | foreach my $p (@{$cd->{audit}}) { |
| 587 | $special_roles->{"PVEAuditor"}->{$p} = 1; |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | $special_roles->{"PVETemplateUser"} = { 'VM.Clone' => 1, 'VM.Audit' => 1 }; |
| 592 | }; |
| 593 | |
| 594 | create_roles(); |
| 595 | |
| 596 | sub add_role_privs { |
| 597 | my ($role, $usercfg, $privs) = @_; |
| 598 | |
| 599 | return if !$privs; |
| 600 | |
| 601 | die "role '$role' does not exist\n" if !$usercfg->{roles}->{$role}; |
| 602 | |
| 603 | foreach my $priv (split_list($privs)) { |
| 604 | if (defined ($valid_privs->{$priv})) { |
| 605 | $usercfg->{roles}->{$role}->{$priv} = 1; |
| 606 | } else { |
| 607 | die "invalid priviledge '$priv'\n"; |
| 608 | } |
| 609 | } |
| 610 | } |
| 611 | |
| 612 | sub normalize_path { |
| 613 | my $path = shift; |
| 614 | |
| 615 | $path =~ s|/+|/|g; |
| 616 | |
| 617 | $path =~ s|/$||; |
| 618 | |
| 619 | $path = '/' if !$path; |
| 620 | |
| 621 | $path = "/$path" if $path !~ m|^/|; |
| 622 | |
| 623 | return undef if $path !~ m|^[[:alnum:]\.\-\_\/]+$|; |
| 624 | |
| 625 | return $path; |
| 626 | } |
| 627 | |
| 628 | |
| 629 | PVE::JSONSchema::register_format('pve-groupid', \&verify_groupname); |
| 630 | sub verify_groupname { |
| 631 | my ($groupname, $noerr) = @_; |
| 632 | |
| 633 | if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) { |
| 634 | |
| 635 | die "group name '$groupname' contains invalid characters\n" if !$noerr; |
| 636 | |
| 637 | return undef; |
| 638 | } |
| 639 | |
| 640 | return $groupname; |
| 641 | } |
| 642 | |
| 643 | PVE::JSONSchema::register_format('pve-roleid', \&verify_rolename); |
| 644 | sub verify_rolename { |
| 645 | my ($rolename, $noerr) = @_; |
| 646 | |
| 647 | if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) { |
| 648 | |
| 649 | die "role name '$rolename' contains invalid characters\n" if !$noerr; |
| 650 | |
| 651 | return undef; |
| 652 | } |
| 653 | |
| 654 | return $rolename; |
| 655 | } |
| 656 | |
| 657 | PVE::JSONSchema::register_format('pve-poolid', \&verify_groupname); |
| 658 | sub verify_poolname { |
| 659 | my ($poolname, $noerr) = @_; |
| 660 | |
| 661 | if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) { |
| 662 | |
| 663 | die "pool name '$poolname' contains invalid characters\n" if !$noerr; |
| 664 | |
| 665 | return undef; |
| 666 | } |
| 667 | |
| 668 | return $poolname; |
| 669 | } |
| 670 | |
| 671 | PVE::JSONSchema::register_format('pve-priv', \&verify_privname); |
| 672 | sub verify_privname { |
| 673 | my ($priv, $noerr) = @_; |
| 674 | |
| 675 | if (!$valid_privs->{$priv}) { |
| 676 | die "invalid priviledge '$priv'\n" if !$noerr; |
| 677 | |
| 678 | return undef; |
| 679 | } |
| 680 | |
| 681 | return $priv; |
| 682 | } |
| 683 | |
| 684 | sub userconfig_force_defaults { |
| 685 | my ($cfg) = @_; |
| 686 | |
| 687 | foreach my $r (keys %$special_roles) { |
| 688 | $cfg->{roles}->{$r} = $special_roles->{$r}; |
| 689 | } |
| 690 | |
| 691 | # add root user if not exists |
| 692 | if (!$cfg->{users}->{'root@pam'}) { |
| 693 | $cfg->{users}->{'root@pam'}->{enable} = 1; |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | sub parse_user_config { |
| 698 | my ($filename, $raw) = @_; |
| 699 | |
| 700 | my $cfg = {}; |
| 701 | |
| 702 | userconfig_force_defaults($cfg); |
| 703 | |
| 704 | $raw = '' if !defined($raw); |
| 705 | while ($raw =~ /^\s*(.+?)\s*$/gm) { |
| 706 | my $line = $1; |
| 707 | my @data; |
| 708 | |
| 709 | foreach my $d (split (/:/, $line)) { |
| 710 | $d =~ s/^\s+//; |
| 711 | $d =~ s/\s+$//; |
| 712 | push @data, $d |
| 713 | } |
| 714 | |
| 715 | my $et = shift @data; |
| 716 | |
| 717 | if ($et eq 'user') { |
| 718 | my ($user, $enable, $expire, $firstname, $lastname, $email, $comment, $keys) = @data; |
| 719 | |
| 720 | my (undef, undef, $realm) = PVE::Auth::Plugin::verify_username($user, 1); |
| 721 | if (!$realm) { |
| 722 | warn "user config - ignore user '$user' - invalid user name\n"; |
| 723 | next; |
| 724 | } |
| 725 | |
| 726 | $enable = $enable ? 1 : 0; |
| 727 | |
| 728 | $expire = 0 if !$expire; |
| 729 | |
| 730 | if ($expire !~ m/^\d+$/) { |
| 731 | warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n"; |
| 732 | next; |
| 733 | } |
| 734 | $expire = int($expire); |
| 735 | |
| 736 | #if (!verify_groupname ($group, 1)) { |
| 737 | # warn "user config - ignore user '$user' - invalid characters in group name\n"; |
| 738 | # next; |
| 739 | #} |
| 740 | |
| 741 | $cfg->{users}->{$user} = { |
| 742 | enable => $enable, |
| 743 | # group => $group, |
| 744 | }; |
| 745 | $cfg->{users}->{$user}->{firstname} = PVE::Tools::decode_text($firstname) if $firstname; |
| 746 | $cfg->{users}->{$user}->{lastname} = PVE::Tools::decode_text($lastname) if $lastname; |
| 747 | $cfg->{users}->{$user}->{email} = $email; |
| 748 | $cfg->{users}->{$user}->{comment} = PVE::Tools::decode_text($comment) if $comment; |
| 749 | $cfg->{users}->{$user}->{expire} = $expire; |
| 750 | # keys: allowed yubico key ids or oath secrets (base32 encoded) |
| 751 | $cfg->{users}->{$user}->{keys} = $keys if $keys; |
| 752 | |
| 753 | #$cfg->{users}->{$user}->{groups}->{$group} = 1; |
| 754 | #$cfg->{groups}->{$group}->{$user} = 1; |
| 755 | |
| 756 | } elsif ($et eq 'group') { |
| 757 | my ($group, $userlist, $comment) = @data; |
| 758 | |
| 759 | if (!verify_groupname($group, 1)) { |
| 760 | warn "user config - ignore group '$group' - invalid characters in group name\n"; |
| 761 | next; |
| 762 | } |
| 763 | |
| 764 | # make sure to add the group (even if there are no members) |
| 765 | $cfg->{groups}->{$group} = { users => {} } if !$cfg->{groups}->{$group}; |
| 766 | |
| 767 | $cfg->{groups}->{$group}->{comment} = PVE::Tools::decode_text($comment) if $comment; |
| 768 | |
| 769 | foreach my $user (split_list($userlist)) { |
| 770 | |
| 771 | if (!PVE::Auth::Plugin::verify_username($user, 1)) { |
| 772 | warn "user config - ignore invalid group member '$user'\n"; |
| 773 | next; |
| 774 | } |
| 775 | |
| 776 | if ($cfg->{users}->{$user}) { # user exists |
| 777 | $cfg->{users}->{$user}->{groups}->{$group} = 1; |
| 778 | $cfg->{groups}->{$group}->{users}->{$user} = 1; |
| 779 | } else { |
| 780 | warn "user config - ignore invalid group member '$user'\n"; |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | } elsif ($et eq 'role') { |
| 785 | my ($role, $privlist) = @data; |
| 786 | |
| 787 | if (!verify_rolename($role, 1)) { |
| 788 | warn "user config - ignore role '$role' - invalid characters in role name\n"; |
| 789 | next; |
| 790 | } |
| 791 | |
| 792 | # make sure to add the role (even if there are no privileges) |
| 793 | $cfg->{roles}->{$role} = {} if !$cfg->{roles}->{$role}; |
| 794 | |
| 795 | foreach my $priv (split_list($privlist)) { |
| 796 | if (defined ($valid_privs->{$priv})) { |
| 797 | $cfg->{roles}->{$role}->{$priv} = 1; |
| 798 | } else { |
| 799 | warn "user config - ignore invalid priviledge '$priv'\n"; |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | } elsif ($et eq 'acl') { |
| 804 | my ($propagate, $pathtxt, $uglist, $rolelist) = @data; |
| 805 | |
| 806 | if (my $path = normalize_path($pathtxt)) { |
| 807 | foreach my $role (split_list($rolelist)) { |
| 808 | |
| 809 | if (!verify_rolename($role, 1)) { |
| 810 | warn "user config - ignore invalid role name '$role' in acl\n"; |
| 811 | next; |
| 812 | } |
| 813 | |
| 814 | foreach my $ug (split_list($uglist)) { |
| 815 | if ($ug =~ m/^@(\S+)$/) { |
| 816 | my $group = $1; |
| 817 | if ($cfg->{groups}->{$group}) { # group exists |
| 818 | $cfg->{acl}->{$path}->{groups}->{$group}->{$role} = $propagate; |
| 819 | } else { |
| 820 | warn "user config - ignore invalid acl group '$group'\n"; |
| 821 | } |
| 822 | } elsif (PVE::Auth::Plugin::verify_username($ug, 1)) { |
| 823 | if ($cfg->{users}->{$ug}) { # user exists |
| 824 | $cfg->{acl}->{$path}->{users}->{$ug}->{$role} = $propagate; |
| 825 | } else { |
| 826 | warn "user config - ignore invalid acl member '$ug'\n"; |
| 827 | } |
| 828 | } else { |
| 829 | warn "user config - invalid user/group '$ug' in acl\n"; |
| 830 | } |
| 831 | } |
| 832 | } |
| 833 | } else { |
| 834 | warn "user config - ignore invalid path in acl '$pathtxt'\n"; |
| 835 | } |
| 836 | } elsif ($et eq 'pool') { |
| 837 | my ($pool, $comment, $vmlist, $storelist) = @data; |
| 838 | |
| 839 | if (!verify_poolname($pool, 1)) { |
| 840 | warn "user config - ignore pool '$pool' - invalid characters in pool name\n"; |
| 841 | next; |
| 842 | } |
| 843 | |
| 844 | # make sure to add the pool (even if there are no members) |
| 845 | $cfg->{pools}->{$pool} = { vms => {}, storage => {} } if !$cfg->{pools}->{$pool}; |
| 846 | |
| 847 | $cfg->{pools}->{$pool}->{comment} = PVE::Tools::decode_text($comment) if $comment; |
| 848 | |
| 849 | foreach my $vmid (split_list($vmlist)) { |
| 850 | if ($vmid !~ m/^\d+$/) { |
| 851 | warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n"; |
| 852 | next; |
| 853 | } |
| 854 | $vmid = int($vmid); |
| 855 | |
| 856 | if ($cfg->{vms}->{$vmid}) { |
| 857 | warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n"; |
| 858 | next; |
| 859 | } |
| 860 | |
| 861 | $cfg->{pools}->{$pool}->{vms}->{$vmid} = 1; |
| 862 | |
| 863 | # record vmid ==> pool relation |
| 864 | $cfg->{vms}->{$vmid} = $pool; |
| 865 | } |
| 866 | |
| 867 | foreach my $storeid (split_list($storelist)) { |
| 868 | if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { |
| 869 | warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n"; |
| 870 | next; |
| 871 | } |
| 872 | $cfg->{pools}->{$pool}->{storage}->{$storeid} = 1; |
| 873 | } |
| 874 | } else { |
| 875 | warn "user config - ignore config line: $line\n"; |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | userconfig_force_defaults($cfg); |
| 880 | |
| 881 | return $cfg; |
| 882 | } |
| 883 | |
| 884 | sub write_user_config { |
| 885 | my ($filename, $cfg) = @_; |
| 886 | |
| 887 | my $data = ''; |
| 888 | |
| 889 | foreach my $user (keys %{$cfg->{users}}) { |
| 890 | my $d = $cfg->{users}->{$user}; |
| 891 | my $firstname = $d->{firstname} ? PVE::Tools::encode_text($d->{firstname}) : ''; |
| 892 | my $lastname = $d->{lastname} ? PVE::Tools::encode_text($d->{lastname}) : ''; |
| 893 | my $email = $d->{email} || ''; |
| 894 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; |
| 895 | my $expire = int($d->{expire} || 0); |
| 896 | my $enable = $d->{enable} ? 1 : 0; |
| 897 | my $keys = $d->{keys} ? $d->{keys} : ''; |
| 898 | $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:$keys:\n"; |
| 899 | } |
| 900 | |
| 901 | $data .= "\n"; |
| 902 | |
| 903 | foreach my $group (keys %{$cfg->{groups}}) { |
| 904 | my $d = $cfg->{groups}->{$group}; |
| 905 | my $list = join (',', keys %{$d->{users}}); |
| 906 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; |
| 907 | $data .= "group:$group:$list:$comment:\n"; |
| 908 | } |
| 909 | |
| 910 | $data .= "\n"; |
| 911 | |
| 912 | foreach my $pool (keys %{$cfg->{pools}}) { |
| 913 | my $d = $cfg->{pools}->{$pool}; |
| 914 | my $vmlist = join (',', keys %{$d->{vms}}); |
| 915 | my $storelist = join (',', keys %{$d->{storage}}); |
| 916 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; |
| 917 | $data .= "pool:$pool:$comment:$vmlist:$storelist:\n"; |
| 918 | } |
| 919 | |
| 920 | $data .= "\n"; |
| 921 | |
| 922 | foreach my $role (keys %{$cfg->{roles}}) { |
| 923 | next if $special_roles->{$role}; |
| 924 | |
| 925 | my $d = $cfg->{roles}->{$role}; |
| 926 | my $list = join (',', keys %$d); |
| 927 | $data .= "role:$role:$list:\n"; |
| 928 | } |
| 929 | |
| 930 | $data .= "\n"; |
| 931 | |
| 932 | foreach my $path (sort keys %{$cfg->{acl}}) { |
| 933 | my $d = $cfg->{acl}->{$path}; |
| 934 | |
| 935 | my $ra = {}; |
| 936 | |
| 937 | foreach my $group (keys %{$d->{groups}}) { |
| 938 | my $l0 = ''; |
| 939 | my $l1 = ''; |
| 940 | foreach my $role (sort keys %{$d->{groups}->{$group}}) { |
| 941 | my $propagate = $d->{groups}->{$group}->{$role}; |
| 942 | if ($propagate) { |
| 943 | $l1 .= ',' if $l1; |
| 944 | $l1 .= $role; |
| 945 | } else { |
| 946 | $l0 .= ',' if $l0; |
| 947 | $l0 .= $role; |
| 948 | } |
| 949 | } |
| 950 | $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0; |
| 951 | $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1; |
| 952 | } |
| 953 | |
| 954 | foreach my $user (keys %{$d->{users}}) { |
| 955 | # no need to save, because root is always 'Administartor' |
| 956 | next if $user eq 'root@pam'; |
| 957 | |
| 958 | my $l0 = ''; |
| 959 | my $l1 = ''; |
| 960 | foreach my $role (sort keys %{$d->{users}->{$user}}) { |
| 961 | my $propagate = $d->{users}->{$user}->{$role}; |
| 962 | if ($propagate) { |
| 963 | $l1 .= ',' if $l1; |
| 964 | $l1 .= $role; |
| 965 | } else { |
| 966 | $l0 .= ',' if $l0; |
| 967 | $l0 .= $role; |
| 968 | } |
| 969 | } |
| 970 | $ra->{0}->{$l0}->{$user} = 1 if $l0; |
| 971 | $ra->{1}->{$l1}->{$user} = 1 if $l1; |
| 972 | } |
| 973 | |
| 974 | foreach my $rolelist (sort keys %{$ra->{0}}) { |
| 975 | my $uglist = join (',', keys %{$ra->{0}->{$rolelist}}); |
| 976 | $data .= "acl:0:$path:$uglist:$rolelist:\n"; |
| 977 | } |
| 978 | foreach my $rolelist (sort keys %{$ra->{1}}) { |
| 979 | my $uglist = join (',', keys %{$ra->{1}->{$rolelist}}); |
| 980 | $data .= "acl:1:$path:$uglist:$rolelist:\n"; |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | return $data; |
| 985 | } |
| 986 | |
| 987 | sub roles { |
| 988 | my ($cfg, $user, $path) = @_; |
| 989 | |
| 990 | # NOTE: we do not consider pools here. |
| 991 | # You need to use $rpcenv->roles() instead if you want that. |
| 992 | |
| 993 | return 'Administrator' if $user eq 'root@pam'; # root can do anything |
| 994 | |
| 995 | my $perm = {}; |
| 996 | |
| 997 | foreach my $p (sort keys %{$cfg->{acl}}) { |
| 998 | my $final = ($path eq $p); |
| 999 | |
| 1000 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); |
| 1001 | |
| 1002 | my $acl = $cfg->{acl}->{$p}; |
| 1003 | |
| 1004 | #print "CHECKACL $path $p\n"; |
| 1005 | #print "ACL $path = " . Dumper ($acl); |
| 1006 | |
| 1007 | if (my $ri = $acl->{users}->{$user}) { |
| 1008 | my $new; |
| 1009 | foreach my $role (keys %$ri) { |
| 1010 | my $propagate = $ri->{$role}; |
| 1011 | if ($final || $propagate) { |
| 1012 | #print "APPLY ROLE $p $user $role\n"; |
| 1013 | $new = {} if !$new; |
| 1014 | $new->{$role} = 1; |
| 1015 | } |
| 1016 | } |
| 1017 | if ($new) { |
| 1018 | $perm = $new; # overwrite previous settings |
| 1019 | next; # user privs always override group privs |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | my $new; |
| 1024 | foreach my $g (keys %{$acl->{groups}}) { |
| 1025 | next if !$cfg->{groups}->{$g}->{users}->{$user}; |
| 1026 | if (my $ri = $acl->{groups}->{$g}) { |
| 1027 | foreach my $role (keys %$ri) { |
| 1028 | my $propagate = $ri->{$role}; |
| 1029 | if ($final || $propagate) { |
| 1030 | #print "APPLY ROLE $p \@$g $role\n"; |
| 1031 | $new = {} if !$new; |
| 1032 | $new->{$role} = 1; |
| 1033 | } |
| 1034 | } |
| 1035 | } |
| 1036 | } |
| 1037 | if ($new) { |
| 1038 | $perm = $new; # overwrite previous settings |
| 1039 | next; |
| 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | return ('NoAccess') if defined ($perm->{NoAccess}); |
| 1044 | #return () if defined ($perm->{NoAccess}); |
| 1045 | |
| 1046 | #print "permission $user $path = " . Dumper ($perm); |
| 1047 | |
| 1048 | my @ra = keys %$perm; |
| 1049 | |
| 1050 | #print "roles $user $path = " . join (',', @ra) . "\n"; |
| 1051 | |
| 1052 | return @ra; |
| 1053 | } |
| 1054 | |
| 1055 | sub permission { |
| 1056 | my ($cfg, $user, $path) = @_; |
| 1057 | |
| 1058 | $user = PVE::Auth::Plugin::verify_username($user, 1); |
| 1059 | return {} if !$user; |
| 1060 | |
| 1061 | my @ra = roles($cfg, $user, $path); |
| 1062 | |
| 1063 | my $privs = {}; |
| 1064 | |
| 1065 | foreach my $role (@ra) { |
| 1066 | if (my $privset = $cfg->{roles}->{$role}) { |
| 1067 | foreach my $p (keys %$privset) { |
| 1068 | $privs->{$p} = 1; |
| 1069 | } |
| 1070 | } |
| 1071 | } |
| 1072 | |
| 1073 | #print "priviledges $user $path = " . Dumper ($privs); |
| 1074 | |
| 1075 | return $privs; |
| 1076 | } |
| 1077 | |
| 1078 | sub check_permissions { |
| 1079 | my ($username, $path, $privlist) = @_; |
| 1080 | |
| 1081 | $path = normalize_path($path); |
| 1082 | my $usercfg = cfs_read_file('user.cfg'); |
| 1083 | my $perm = permission($usercfg, $username, $path); |
| 1084 | |
| 1085 | foreach my $priv (split_list($privlist)) { |
| 1086 | return undef if !$perm->{$priv}; |
| 1087 | }; |
| 1088 | |
| 1089 | return 1; |
| 1090 | } |
| 1091 | |
| 1092 | sub remove_vm_access { |
| 1093 | my ($vmid) = @_; |
| 1094 | my $delVMaccessFn = sub { |
| 1095 | my $usercfg = cfs_read_file("user.cfg"); |
| 1096 | my $modified; |
| 1097 | |
| 1098 | if (my $acl = $usercfg->{acl}->{"/vms/$vmid"}) { |
| 1099 | delete $usercfg->{acl}->{"/vms/$vmid"}; |
| 1100 | $modified = 1; |
| 1101 | } |
| 1102 | if (my $pool = $usercfg->{vms}->{$vmid}) { |
| 1103 | if (my $data = $usercfg->{pools}->{$pool}) { |
| 1104 | delete $data->{vms}->{$vmid}; |
| 1105 | delete $usercfg->{vms}->{$vmid}; |
| 1106 | $modified = 1; |
| 1107 | } |
| 1108 | } |
| 1109 | cfs_write_file("user.cfg", $usercfg) if $modified; |
| 1110 | }; |
| 1111 | |
| 1112 | lock_user_config($delVMaccessFn, "access permissions cleanup for VM $vmid failed"); |
| 1113 | } |
| 1114 | |
| 1115 | sub remove_storage_access { |
| 1116 | my ($storeid) = @_; |
| 1117 | |
| 1118 | my $deleteStorageAccessFn = sub { |
| 1119 | my $usercfg = cfs_read_file("user.cfg"); |
| 1120 | my $modified; |
| 1121 | |
| 1122 | if (my $storage = $usercfg->{acl}->{"/storage/$storeid"}) { |
| 1123 | delete $usercfg->{acl}->{"/storage/$storeid"}; |
| 1124 | $modified = 1; |
| 1125 | } |
| 1126 | foreach my $pool (keys %{$usercfg->{pools}}) { |
| 1127 | delete $usercfg->{pools}->{$pool}->{storage}->{$storeid}; |
| 1128 | $modified = 1; |
| 1129 | } |
| 1130 | cfs_write_file("user.cfg", $usercfg) if $modified; |
| 1131 | }; |
| 1132 | |
| 1133 | lock_user_config($deleteStorageAccessFn, |
| 1134 | "access permissions cleanup for storage $storeid failed"); |
| 1135 | } |
| 1136 | |
| 1137 | sub add_vm_to_pool { |
| 1138 | my ($vmid, $pool) = @_; |
| 1139 | |
| 1140 | my $addVMtoPoolFn = sub { |
| 1141 | my $usercfg = cfs_read_file("user.cfg"); |
| 1142 | if (my $data = $usercfg->{pools}->{$pool}) { |
| 1143 | $data->{vms}->{$vmid} = 1; |
| 1144 | $usercfg->{vms}->{$vmid} = $pool; |
| 1145 | cfs_write_file("user.cfg", $usercfg); |
| 1146 | } |
| 1147 | }; |
| 1148 | |
| 1149 | lock_user_config($addVMtoPoolFn, "can't add VM $vmid to pool '$pool'"); |
| 1150 | } |
| 1151 | |
| 1152 | sub remove_vm_from_pool { |
| 1153 | my ($vmid) = @_; |
| 1154 | |
| 1155 | my $delVMfromPoolFn = sub { |
| 1156 | my $usercfg = cfs_read_file("user.cfg"); |
| 1157 | if (my $pool = $usercfg->{vms}->{$vmid}) { |
| 1158 | if (my $data = $usercfg->{pools}->{$pool}) { |
| 1159 | delete $data->{vms}->{$vmid}; |
| 1160 | delete $usercfg->{vms}->{$vmid}; |
| 1161 | cfs_write_file("user.cfg", $usercfg); |
| 1162 | } |
| 1163 | } |
| 1164 | }; |
| 1165 | |
| 1166 | lock_user_config($delVMfromPoolFn, "pool cleanup for VM $vmid failed"); |
| 1167 | } |
| 1168 | |
| 1169 | # experimental code for yubico OTP verification |
| 1170 | |
| 1171 | sub yubico_compute_param_sig { |
| 1172 | my ($param, $api_key) = @_; |
| 1173 | |
| 1174 | my $paramstr = ''; |
| 1175 | foreach my $key (sort keys %$param) { |
| 1176 | $paramstr .= '&' if $paramstr; |
| 1177 | $paramstr .= "$key=$param->{$key}"; |
| 1178 | } |
| 1179 | |
| 1180 | my $sig = uri_escape(encode_base64(Digest::HMAC_SHA1::hmac_sha1($paramstr, decode_base64($api_key || '')), '')); |
| 1181 | |
| 1182 | return ($paramstr, $sig); |
| 1183 | } |
| 1184 | |
| 1185 | sub yubico_verify_otp { |
| 1186 | my ($otp, $keys, $url, $api_id, $api_key, $proxy) = @_; |
| 1187 | |
| 1188 | die "yubico: missing password\n" if !defined($otp); |
| 1189 | die "yubico: missing API ID\n" if !defined($api_id); |
| 1190 | die "yubico: missing API KEY\n" if !defined($api_key); |
| 1191 | die "yubico: no associated yubico keys\n" if $keys =~ m/^\s+$/; |
| 1192 | |
| 1193 | die "yubico: wrong OTP lenght\n" if (length($otp) < 32) || (length($otp) > 48); |
| 1194 | |
| 1195 | # we always use http, because https cert verification always make problem, and |
| 1196 | # some proxies does not work with https. |
| 1197 | |
| 1198 | $url = 'http://api2.yubico.com/wsapi/2.0/verify' if !defined($url); |
| 1199 | |
| 1200 | my $params = { |
| 1201 | nonce => Digest::HMAC_SHA1::hmac_sha1_hex(time(), rand()), |
| 1202 | id => $api_id, |
| 1203 | otp => uri_escape($otp), |
| 1204 | timestamp => 1, |
| 1205 | }; |
| 1206 | |
| 1207 | my ($paramstr, $sig) = yubico_compute_param_sig($params, $api_key); |
| 1208 | |
| 1209 | $paramstr .= "&h=$sig" if $api_key; |
| 1210 | |
| 1211 | my $req = HTTP::Request->new('GET' => "$url?$paramstr"); |
| 1212 | |
| 1213 | my $ua = LWP::UserAgent->new(protocols_allowed => ['http'], timeout => 30); |
| 1214 | |
| 1215 | if ($proxy) { |
| 1216 | $ua->proxy(['http'], $proxy); |
| 1217 | } else { |
| 1218 | $ua->env_proxy; |
| 1219 | } |
| 1220 | |
| 1221 | my $response = $ua->request($req); |
| 1222 | my $code = $response->code; |
| 1223 | |
| 1224 | if ($code != 200) { |
| 1225 | my $msg = $response->message || 'unknown'; |
| 1226 | die "Invalid response from server: $code $msg\n"; |
| 1227 | } |
| 1228 | |
| 1229 | my $raw = $response->decoded_content; |
| 1230 | |
| 1231 | my $result = {}; |
| 1232 | foreach my $kvpair (split(/\n/, $raw)) { |
| 1233 | chomp $kvpair; |
| 1234 | if($kvpair =~ /^\S+=/) { |
| 1235 | my ($k, $v) = split(/=/, $kvpair, 2); |
| 1236 | $v =~ s/\s//g; |
| 1237 | $result->{$k} = $v; |
| 1238 | } |
| 1239 | } |
| 1240 | |
| 1241 | my $rsig = $result->{h}; |
| 1242 | delete $result->{h}; |
| 1243 | |
| 1244 | if ($api_key) { |
| 1245 | my ($datastr, $vsig) = yubico_compute_param_sig($result, $api_key); |
| 1246 | $vsig = uri_unescape($vsig); |
| 1247 | die "yubico: result signature verification failed\n" if $rsig ne $vsig; |
| 1248 | } |
| 1249 | |
| 1250 | die "yubico auth failed: $result->{status}\n" if $result->{status} ne 'OK'; |
| 1251 | |
| 1252 | my $publicid = $result->{publicid} = substr(lc($result->{otp}), 0, 12); |
| 1253 | |
| 1254 | my $found; |
| 1255 | foreach my $k (PVE::Tools::split_list($keys)) { |
| 1256 | if ($k eq $publicid) { |
| 1257 | $found = 1; |
| 1258 | last; |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | die "yubico auth failed: key does not belong to user\n" if !$found; |
| 1263 | |
| 1264 | return $result; |
| 1265 | } |
| 1266 | |
| 1267 | sub oath_verify_otp { |
| 1268 | my ($otp, $keys, $step, $digits) = @_; |
| 1269 | |
| 1270 | die "oath: missing password\n" if !defined($otp); |
| 1271 | die "oath: no associated oath keys\n" if $keys =~ m/^\s+$/; |
| 1272 | |
| 1273 | $step = 30 if !$step; |
| 1274 | $digits = 6 if !$digits; |
| 1275 | |
| 1276 | my $found; |
| 1277 | |
| 1278 | my $parser = sub { |
| 1279 | my $line = shift; |
| 1280 | |
| 1281 | if ($line =~ m/^\d{6}$/) { |
| 1282 | $found = 1 if $otp eq $line; |
| 1283 | } |
| 1284 | }; |
| 1285 | |
| 1286 | foreach my $k (PVE::Tools::split_list($keys)) { |
| 1287 | # Note: we generate 3 values to allow small time drift |
| 1288 | my $now = localtime(time() - $step); |
| 1289 | my $cmd = ['oathtool', '--totp', '--digits', $digits, '-N', $now, '-s', $step, '-w', '2', '-b', $k]; |
| 1290 | eval { run_command($cmd, outfunc => $parser, errfunc => sub {}); }; |
| 1291 | last if $found; |
| 1292 | } |
| 1293 | |
| 1294 | die "oath auth failed\n" if !$found; |
| 1295 | } |
| 1296 | |
| 1297 | 1; |