Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| 2 | /* config-parser.c XML-library-agnostic configuration file parser |
| 3 | * |
| 4 | * Copyright (C) 2003, 2004 Red Hat, Inc. |
| 5 | * |
| 6 | * Licensed under the Academic Free License version 2.1 |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <config.h> |
| 25 | #include "config-parser-common.h" |
| 26 | #include "config-parser.h" |
| 27 | #include "test.h" |
| 28 | #include "utils.h" |
| 29 | #include "policy.h" |
| 30 | #include "selinux.h" |
| 31 | #include <dbus/dbus-list.h> |
| 32 | #include <dbus/dbus-internals.h> |
| 33 | #include <string.h> |
| 34 | |
| 35 | typedef enum |
| 36 | { |
| 37 | /* we ignore policies for unknown groups/users */ |
| 38 | POLICY_IGNORED, |
| 39 | |
| 40 | /* non-ignored */ |
| 41 | POLICY_DEFAULT, |
| 42 | POLICY_MANDATORY, |
| 43 | POLICY_USER, |
| 44 | POLICY_GROUP, |
| 45 | POLICY_CONSOLE |
| 46 | } PolicyType; |
| 47 | |
| 48 | typedef struct |
| 49 | { |
| 50 | ElementType type; |
| 51 | |
| 52 | unsigned int had_content : 1; |
| 53 | |
| 54 | union |
| 55 | { |
| 56 | struct |
| 57 | { |
| 58 | unsigned int ignore_missing : 1; |
| 59 | unsigned int if_selinux_enabled : 1; |
| 60 | unsigned int selinux_root_relative : 1; |
| 61 | } include; |
| 62 | |
| 63 | struct |
| 64 | { |
| 65 | PolicyType type; |
| 66 | unsigned long gid_uid_or_at_console; |
| 67 | } policy; |
| 68 | |
| 69 | struct |
| 70 | { |
| 71 | char *name; |
| 72 | long value; |
| 73 | } limit; |
| 74 | |
| 75 | } d; |
| 76 | |
| 77 | } Element; |
| 78 | |
| 79 | /** |
| 80 | * Parser for bus configuration file. |
| 81 | */ |
| 82 | struct BusConfigParser |
| 83 | { |
| 84 | int refcount; /**< Reference count */ |
| 85 | |
| 86 | DBusString basedir; /**< Directory we resolve paths relative to */ |
| 87 | |
| 88 | DBusList *stack; /**< stack of Element */ |
| 89 | |
| 90 | char *user; /**< user to run as */ |
| 91 | |
| 92 | char *servicehelper; /**< location of the setuid helper */ |
| 93 | |
| 94 | char *bus_type; /**< Message bus type */ |
| 95 | |
| 96 | DBusList *listen_on; /**< List of addresses to listen to */ |
| 97 | |
| 98 | DBusList *mechanisms; /**< Auth mechanisms */ |
| 99 | |
| 100 | DBusList *service_dirs; /**< Directories to look for session services in */ |
| 101 | |
| 102 | DBusList *conf_dirs; /**< Directories to look for policy configuration in */ |
| 103 | |
| 104 | BusPolicy *policy; /**< Security policy */ |
| 105 | |
| 106 | BusLimits limits; /**< Limits */ |
| 107 | |
| 108 | char *pidfile; /**< PID file */ |
| 109 | |
| 110 | DBusList *included_files; /**< Included files stack */ |
| 111 | |
| 112 | DBusHashTable *service_context_table; /**< Map service names to SELinux contexts */ |
| 113 | |
| 114 | unsigned int fork : 1; /**< TRUE to fork into daemon mode */ |
| 115 | |
| 116 | unsigned int syslog : 1; /**< TRUE to enable syslog */ |
| 117 | unsigned int keep_umask : 1; /**< TRUE to keep original umask when forking */ |
| 118 | |
| 119 | unsigned int is_toplevel : 1; /**< FALSE if we are a sub-config-file inside another one */ |
| 120 | |
| 121 | unsigned int allow_anonymous : 1; /**< TRUE to allow anonymous connections */ |
| 122 | }; |
| 123 | |
| 124 | static Element* |
| 125 | push_element (BusConfigParser *parser, |
| 126 | ElementType type) |
| 127 | { |
| 128 | Element *e; |
| 129 | |
| 130 | _dbus_assert (type != ELEMENT_NONE); |
| 131 | |
| 132 | e = dbus_new0 (Element, 1); |
| 133 | if (e == NULL) |
| 134 | return NULL; |
| 135 | |
| 136 | if (!_dbus_list_append (&parser->stack, e)) |
| 137 | { |
| 138 | dbus_free (e); |
| 139 | return NULL; |
| 140 | } |
| 141 | |
| 142 | e->type = type; |
| 143 | |
| 144 | return e; |
| 145 | } |
| 146 | |
| 147 | static void |
| 148 | element_free (Element *e) |
| 149 | { |
| 150 | if (e->type == ELEMENT_LIMIT) |
| 151 | dbus_free (e->d.limit.name); |
| 152 | |
| 153 | dbus_free (e); |
| 154 | } |
| 155 | |
| 156 | static void |
| 157 | pop_element (BusConfigParser *parser) |
| 158 | { |
| 159 | Element *e; |
| 160 | |
| 161 | e = _dbus_list_pop_last (&parser->stack); |
| 162 | |
| 163 | element_free (e); |
| 164 | } |
| 165 | |
| 166 | static Element* |
| 167 | peek_element (BusConfigParser *parser) |
| 168 | { |
| 169 | Element *e; |
| 170 | |
| 171 | e = _dbus_list_get_last (&parser->stack); |
| 172 | |
| 173 | return e; |
| 174 | } |
| 175 | |
| 176 | static ElementType |
| 177 | top_element_type (BusConfigParser *parser) |
| 178 | { |
| 179 | Element *e; |
| 180 | |
| 181 | e = _dbus_list_get_last (&parser->stack); |
| 182 | |
| 183 | if (e) |
| 184 | return e->type; |
| 185 | else |
| 186 | return ELEMENT_NONE; |
| 187 | } |
| 188 | |
| 189 | static dbus_bool_t |
| 190 | merge_service_context_hash (DBusHashTable *dest, |
| 191 | DBusHashTable *from) |
| 192 | { |
| 193 | DBusHashIter iter; |
| 194 | char *service_copy; |
| 195 | char *context_copy; |
| 196 | |
| 197 | service_copy = NULL; |
| 198 | context_copy = NULL; |
| 199 | |
| 200 | _dbus_hash_iter_init (from, &iter); |
| 201 | while (_dbus_hash_iter_next (&iter)) |
| 202 | { |
| 203 | const char *service = _dbus_hash_iter_get_string_key (&iter); |
| 204 | const char *context = _dbus_hash_iter_get_value (&iter); |
| 205 | |
| 206 | service_copy = _dbus_strdup (service); |
| 207 | if (service_copy == NULL) |
| 208 | goto fail; |
| 209 | context_copy = _dbus_strdup (context); |
| 210 | if (context_copy == NULL) |
| 211 | goto fail; |
| 212 | |
| 213 | if (!_dbus_hash_table_insert_string (dest, service_copy, context_copy)) |
| 214 | goto fail; |
| 215 | |
| 216 | service_copy = NULL; |
| 217 | context_copy = NULL; |
| 218 | } |
| 219 | |
| 220 | return TRUE; |
| 221 | |
| 222 | fail: |
| 223 | if (service_copy) |
| 224 | dbus_free (service_copy); |
| 225 | |
| 226 | if (context_copy) |
| 227 | dbus_free (context_copy); |
| 228 | |
| 229 | return FALSE; |
| 230 | } |
| 231 | |
| 232 | static dbus_bool_t |
| 233 | service_dirs_find_dir (DBusList **service_dirs, |
| 234 | const char *dir) |
| 235 | { |
| 236 | DBusList *link; |
| 237 | |
| 238 | _dbus_assert (dir != NULL); |
| 239 | |
| 240 | for (link = *service_dirs; link; link = _dbus_list_get_next_link(service_dirs, link)) |
| 241 | { |
| 242 | const char *link_dir; |
| 243 | |
| 244 | link_dir = (const char *)link->data; |
| 245 | if (strcmp (dir, link_dir) == 0) |
| 246 | return TRUE; |
| 247 | } |
| 248 | |
| 249 | return FALSE; |
| 250 | } |
| 251 | |
| 252 | static dbus_bool_t |
| 253 | service_dirs_append_unique_or_free (DBusList **service_dirs, |
| 254 | char *dir) |
| 255 | { |
| 256 | if (!service_dirs_find_dir (service_dirs, dir)) |
| 257 | return _dbus_list_append (service_dirs, dir); |
| 258 | |
| 259 | dbus_free (dir); |
| 260 | return TRUE; |
| 261 | } |
| 262 | |
| 263 | static void |
| 264 | service_dirs_append_link_unique_or_free (DBusList **service_dirs, |
| 265 | DBusList *dir_link) |
| 266 | { |
| 267 | if (!service_dirs_find_dir (service_dirs, dir_link->data)) |
| 268 | { |
| 269 | _dbus_list_append_link (service_dirs, dir_link); |
| 270 | } |
| 271 | else |
| 272 | { |
| 273 | dbus_free (dir_link->data); |
| 274 | _dbus_list_free_link (dir_link); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | static dbus_bool_t |
| 279 | merge_included (BusConfigParser *parser, |
| 280 | BusConfigParser *included, |
| 281 | DBusError *error) |
| 282 | { |
| 283 | DBusList *link; |
| 284 | |
| 285 | if (!bus_policy_merge (parser->policy, |
| 286 | included->policy)) |
| 287 | { |
| 288 | BUS_SET_OOM (error); |
| 289 | return FALSE; |
| 290 | } |
| 291 | |
| 292 | if (!merge_service_context_hash (parser->service_context_table, |
| 293 | included->service_context_table)) |
| 294 | { |
| 295 | BUS_SET_OOM (error); |
| 296 | return FALSE; |
| 297 | } |
| 298 | |
| 299 | if (included->user != NULL) |
| 300 | { |
| 301 | dbus_free (parser->user); |
| 302 | parser->user = included->user; |
| 303 | included->user = NULL; |
| 304 | } |
| 305 | |
| 306 | if (included->bus_type != NULL) |
| 307 | { |
| 308 | dbus_free (parser->bus_type); |
| 309 | parser->bus_type = included->bus_type; |
| 310 | included->bus_type = NULL; |
| 311 | } |
| 312 | |
| 313 | if (included->fork) |
| 314 | parser->fork = TRUE; |
| 315 | |
| 316 | if (included->keep_umask) |
| 317 | parser->keep_umask = TRUE; |
| 318 | |
| 319 | if (included->pidfile != NULL) |
| 320 | { |
| 321 | dbus_free (parser->pidfile); |
| 322 | parser->pidfile = included->pidfile; |
| 323 | included->pidfile = NULL; |
| 324 | } |
| 325 | |
| 326 | while ((link = _dbus_list_pop_first_link (&included->listen_on))) |
| 327 | _dbus_list_append_link (&parser->listen_on, link); |
| 328 | |
| 329 | while ((link = _dbus_list_pop_first_link (&included->mechanisms))) |
| 330 | _dbus_list_append_link (&parser->mechanisms, link); |
| 331 | |
| 332 | while ((link = _dbus_list_pop_first_link (&included->service_dirs))) |
| 333 | service_dirs_append_link_unique_or_free (&parser->service_dirs, link); |
| 334 | |
| 335 | while ((link = _dbus_list_pop_first_link (&included->conf_dirs))) |
| 336 | _dbus_list_append_link (&parser->conf_dirs, link); |
| 337 | |
| 338 | return TRUE; |
| 339 | } |
| 340 | |
| 341 | static dbus_bool_t |
| 342 | seen_include (BusConfigParser *parser, |
| 343 | const DBusString *file) |
| 344 | { |
| 345 | DBusList *iter; |
| 346 | |
| 347 | iter = parser->included_files; |
| 348 | while (iter != NULL) |
| 349 | { |
| 350 | if (! strcmp (_dbus_string_get_const_data (file), iter->data)) |
| 351 | return TRUE; |
| 352 | |
| 353 | iter = _dbus_list_get_next_link (&parser->included_files, iter); |
| 354 | } |
| 355 | |
| 356 | return FALSE; |
| 357 | } |
| 358 | |
| 359 | BusConfigParser* |
| 360 | bus_config_parser_new (const DBusString *basedir, |
| 361 | dbus_bool_t is_toplevel, |
| 362 | const BusConfigParser *parent) |
| 363 | { |
| 364 | BusConfigParser *parser; |
| 365 | |
| 366 | parser = dbus_new0 (BusConfigParser, 1); |
| 367 | if (parser == NULL) |
| 368 | return NULL; |
| 369 | |
| 370 | parser->is_toplevel = !!is_toplevel; |
| 371 | |
| 372 | if (!_dbus_string_init (&parser->basedir)) |
| 373 | { |
| 374 | dbus_free (parser); |
| 375 | return NULL; |
| 376 | } |
| 377 | |
| 378 | if (((parser->policy = bus_policy_new ()) == NULL) || |
| 379 | !_dbus_string_copy (basedir, 0, &parser->basedir, 0) || |
| 380 | ((parser->service_context_table = _dbus_hash_table_new (DBUS_HASH_STRING, |
| 381 | dbus_free, |
| 382 | dbus_free)) == NULL)) |
| 383 | { |
| 384 | if (parser->policy) |
| 385 | bus_policy_unref (parser->policy); |
| 386 | |
| 387 | _dbus_string_free (&parser->basedir); |
| 388 | |
| 389 | dbus_free (parser); |
| 390 | return NULL; |
| 391 | } |
| 392 | |
| 393 | if (parent != NULL) |
| 394 | { |
| 395 | /* Initialize the parser's limits from the parent. */ |
| 396 | parser->limits = parent->limits; |
| 397 | |
| 398 | /* Use the parent's list of included_files to avoid |
| 399 | circular inclusions. */ |
| 400 | parser->included_files = parent->included_files; |
| 401 | } |
| 402 | else |
| 403 | { |
| 404 | |
| 405 | /* Make up some numbers! woot! */ |
| 406 | parser->limits.max_incoming_bytes = _DBUS_ONE_MEGABYTE * 127; |
| 407 | parser->limits.max_outgoing_bytes = _DBUS_ONE_MEGABYTE * 127; |
| 408 | parser->limits.max_message_size = _DBUS_ONE_MEGABYTE * 32; |
| 409 | |
| 410 | /* We set relatively conservative values here since due to the |
| 411 | way SCM_RIGHTS works we need to preallocate an array for the |
| 412 | maximum number of file descriptors we can receive. Picking a |
| 413 | high value here thus translates directly to more memory |
| 414 | allocation. */ |
| 415 | parser->limits.max_incoming_unix_fds = 1024*4; |
| 416 | parser->limits.max_outgoing_unix_fds = 1024*4; |
| 417 | parser->limits.max_message_unix_fds = 1024; |
| 418 | |
| 419 | /* Making this long means the user has to wait longer for an error |
| 420 | * message if something screws up, but making it too short means |
| 421 | * they might see a false failure. |
| 422 | */ |
| 423 | parser->limits.activation_timeout = 25000; /* 25 seconds */ |
| 424 | |
| 425 | /* Making this long risks making a DOS attack easier, but too short |
| 426 | * and legitimate auth will fail. If interactive auth (ask user for |
| 427 | * password) is allowed, then potentially it has to be quite long. |
| 428 | */ |
| 429 | parser->limits.auth_timeout = 30000; /* 30 seconds */ |
| 430 | |
| 431 | parser->limits.max_incomplete_connections = 64; |
| 432 | parser->limits.max_connections_per_user = 256; |
| 433 | |
| 434 | /* Note that max_completed_connections / max_connections_per_user |
| 435 | * is the number of users that would have to work together to |
| 436 | * DOS all the other users. |
| 437 | */ |
| 438 | parser->limits.max_completed_connections = 2048; |
| 439 | |
| 440 | parser->limits.max_pending_activations = 512; |
| 441 | parser->limits.max_services_per_connection = 512; |
| 442 | |
| 443 | /* For this one, keep in mind that it isn't only the memory used |
| 444 | * by the match rules, but slowdown from linearly walking a big |
| 445 | * list of them. A client adding more than this is almost |
| 446 | * certainly a bad idea for that reason, and should change to a |
| 447 | * smaller number of wider-net match rules - getting every last |
| 448 | * message to the bus is probably better than having a thousand |
| 449 | * match rules. |
| 450 | */ |
| 451 | parser->limits.max_match_rules_per_connection = 512; |
| 452 | |
| 453 | parser->limits.reply_timeout = -1; /* never */ |
| 454 | |
| 455 | /* this is effectively a limit on message queue size for messages |
| 456 | * that require a reply |
| 457 | */ |
| 458 | parser->limits.max_replies_per_connection = 1024*8; |
| 459 | } |
| 460 | |
| 461 | parser->refcount = 1; |
| 462 | |
| 463 | return parser; |
| 464 | } |
| 465 | |
| 466 | BusConfigParser * |
| 467 | bus_config_parser_ref (BusConfigParser *parser) |
| 468 | { |
| 469 | _dbus_assert (parser->refcount > 0); |
| 470 | |
| 471 | parser->refcount += 1; |
| 472 | |
| 473 | return parser; |
| 474 | } |
| 475 | |
| 476 | void |
| 477 | bus_config_parser_unref (BusConfigParser *parser) |
| 478 | { |
| 479 | _dbus_assert (parser->refcount > 0); |
| 480 | |
| 481 | parser->refcount -= 1; |
| 482 | |
| 483 | if (parser->refcount == 0) |
| 484 | { |
| 485 | while (parser->stack != NULL) |
| 486 | pop_element (parser); |
| 487 | |
| 488 | dbus_free (parser->user); |
| 489 | dbus_free (parser->servicehelper); |
| 490 | dbus_free (parser->bus_type); |
| 491 | dbus_free (parser->pidfile); |
| 492 | |
| 493 | _dbus_list_foreach (&parser->listen_on, |
| 494 | (DBusForeachFunction) dbus_free, |
| 495 | NULL); |
| 496 | |
| 497 | _dbus_list_clear (&parser->listen_on); |
| 498 | |
| 499 | _dbus_list_foreach (&parser->service_dirs, |
| 500 | (DBusForeachFunction) dbus_free, |
| 501 | NULL); |
| 502 | |
| 503 | _dbus_list_clear (&parser->service_dirs); |
| 504 | |
| 505 | _dbus_list_foreach (&parser->conf_dirs, |
| 506 | (DBusForeachFunction) dbus_free, |
| 507 | NULL); |
| 508 | |
| 509 | _dbus_list_clear (&parser->conf_dirs); |
| 510 | |
| 511 | _dbus_list_foreach (&parser->mechanisms, |
| 512 | (DBusForeachFunction) dbus_free, |
| 513 | NULL); |
| 514 | |
| 515 | _dbus_list_clear (&parser->mechanisms); |
| 516 | |
| 517 | _dbus_string_free (&parser->basedir); |
| 518 | |
| 519 | if (parser->policy) |
| 520 | bus_policy_unref (parser->policy); |
| 521 | |
| 522 | if (parser->service_context_table) |
| 523 | _dbus_hash_table_unref (parser->service_context_table); |
| 524 | |
| 525 | dbus_free (parser); |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | dbus_bool_t |
| 530 | bus_config_parser_check_doctype (BusConfigParser *parser, |
| 531 | const char *doctype, |
| 532 | DBusError *error) |
| 533 | { |
| 534 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 535 | |
| 536 | if (strcmp (doctype, "busconfig") != 0) |
| 537 | { |
| 538 | dbus_set_error (error, |
| 539 | DBUS_ERROR_FAILED, |
| 540 | "Configuration file has the wrong document type %s", |
| 541 | doctype); |
| 542 | return FALSE; |
| 543 | } |
| 544 | else |
| 545 | return TRUE; |
| 546 | } |
| 547 | |
| 548 | typedef struct |
| 549 | { |
| 550 | const char *name; |
| 551 | const char **retloc; |
| 552 | } LocateAttr; |
| 553 | |
| 554 | static dbus_bool_t |
| 555 | locate_attributes (BusConfigParser *parser, |
| 556 | const char *element_name, |
| 557 | const char **attribute_names, |
| 558 | const char **attribute_values, |
| 559 | DBusError *error, |
| 560 | const char *first_attribute_name, |
| 561 | const char **first_attribute_retloc, |
| 562 | ...) |
| 563 | { |
| 564 | va_list args; |
| 565 | const char *name; |
| 566 | const char **retloc; |
| 567 | int n_attrs; |
| 568 | #define MAX_ATTRS 24 |
| 569 | LocateAttr attrs[MAX_ATTRS]; |
| 570 | dbus_bool_t retval; |
| 571 | int i; |
| 572 | |
| 573 | _dbus_assert (first_attribute_name != NULL); |
| 574 | _dbus_assert (first_attribute_retloc != NULL); |
| 575 | |
| 576 | retval = TRUE; |
| 577 | |
| 578 | n_attrs = 1; |
| 579 | attrs[0].name = first_attribute_name; |
| 580 | attrs[0].retloc = first_attribute_retloc; |
| 581 | *first_attribute_retloc = NULL; |
| 582 | |
| 583 | va_start (args, first_attribute_retloc); |
| 584 | |
| 585 | name = va_arg (args, const char*); |
| 586 | retloc = va_arg (args, const char**); |
| 587 | |
| 588 | while (name != NULL) |
| 589 | { |
| 590 | _dbus_assert (retloc != NULL); |
| 591 | _dbus_assert (n_attrs < MAX_ATTRS); |
| 592 | |
| 593 | attrs[n_attrs].name = name; |
| 594 | attrs[n_attrs].retloc = retloc; |
| 595 | n_attrs += 1; |
| 596 | *retloc = NULL; |
| 597 | |
| 598 | name = va_arg (args, const char*); |
| 599 | retloc = va_arg (args, const char**); |
| 600 | } |
| 601 | |
| 602 | va_end (args); |
| 603 | |
| 604 | i = 0; |
| 605 | while (attribute_names[i]) |
| 606 | { |
| 607 | int j; |
| 608 | dbus_bool_t found; |
| 609 | |
| 610 | found = FALSE; |
| 611 | j = 0; |
| 612 | while (j < n_attrs) |
| 613 | { |
| 614 | if (strcmp (attrs[j].name, attribute_names[i]) == 0) |
| 615 | { |
| 616 | retloc = attrs[j].retloc; |
| 617 | |
| 618 | if (*retloc != NULL) |
| 619 | { |
| 620 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 621 | "Attribute \"%s\" repeated twice on the same <%s> element", |
| 622 | attrs[j].name, element_name); |
| 623 | retval = FALSE; |
| 624 | goto out; |
| 625 | } |
| 626 | |
| 627 | *retloc = attribute_values[i]; |
| 628 | found = TRUE; |
| 629 | } |
| 630 | |
| 631 | ++j; |
| 632 | } |
| 633 | |
| 634 | if (!found) |
| 635 | { |
| 636 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 637 | "Attribute \"%s\" is invalid on <%s> element in this context", |
| 638 | attribute_names[i], element_name); |
| 639 | retval = FALSE; |
| 640 | goto out; |
| 641 | } |
| 642 | |
| 643 | ++i; |
| 644 | } |
| 645 | |
| 646 | out: |
| 647 | return retval; |
| 648 | } |
| 649 | |
| 650 | static dbus_bool_t |
| 651 | check_no_attributes (BusConfigParser *parser, |
| 652 | const char *element_name, |
| 653 | const char **attribute_names, |
| 654 | const char **attribute_values, |
| 655 | DBusError *error) |
| 656 | { |
| 657 | if (attribute_names[0] != NULL) |
| 658 | { |
| 659 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 660 | "Attribute \"%s\" is invalid on <%s> element in this context", |
| 661 | attribute_names[0], element_name); |
| 662 | return FALSE; |
| 663 | } |
| 664 | |
| 665 | return TRUE; |
| 666 | } |
| 667 | |
| 668 | static dbus_bool_t |
| 669 | start_busconfig_child (BusConfigParser *parser, |
| 670 | const char *element_name, |
| 671 | const char **attribute_names, |
| 672 | const char **attribute_values, |
| 673 | DBusError *error) |
| 674 | { |
| 675 | ElementType element_type; |
| 676 | |
| 677 | element_type = bus_config_parser_element_name_to_type (element_name); |
| 678 | |
| 679 | if (element_type == ELEMENT_USER) |
| 680 | { |
| 681 | if (!check_no_attributes (parser, "user", attribute_names, attribute_values, error)) |
| 682 | return FALSE; |
| 683 | |
| 684 | if (push_element (parser, ELEMENT_USER) == NULL) |
| 685 | { |
| 686 | BUS_SET_OOM (error); |
| 687 | return FALSE; |
| 688 | } |
| 689 | |
| 690 | return TRUE; |
| 691 | } |
| 692 | else if (element_type == ELEMENT_TYPE) |
| 693 | { |
| 694 | if (!check_no_attributes (parser, "type", attribute_names, attribute_values, error)) |
| 695 | return FALSE; |
| 696 | |
| 697 | if (push_element (parser, ELEMENT_TYPE) == NULL) |
| 698 | { |
| 699 | BUS_SET_OOM (error); |
| 700 | return FALSE; |
| 701 | } |
| 702 | |
| 703 | return TRUE; |
| 704 | } |
| 705 | else if (element_type == ELEMENT_FORK) |
| 706 | { |
| 707 | if (!check_no_attributes (parser, "fork", attribute_names, attribute_values, error)) |
| 708 | return FALSE; |
| 709 | |
| 710 | if (push_element (parser, ELEMENT_FORK) == NULL) |
| 711 | { |
| 712 | BUS_SET_OOM (error); |
| 713 | return FALSE; |
| 714 | } |
| 715 | |
| 716 | parser->fork = TRUE; |
| 717 | |
| 718 | return TRUE; |
| 719 | } |
| 720 | else if (element_type == ELEMENT_SYSLOG) |
| 721 | { |
| 722 | if (!check_no_attributes (parser, "syslog", attribute_names, attribute_values, error)) |
| 723 | return FALSE; |
| 724 | |
| 725 | if (push_element (parser, ELEMENT_SYSLOG) == NULL) |
| 726 | { |
| 727 | BUS_SET_OOM (error); |
| 728 | return FALSE; |
| 729 | } |
| 730 | |
| 731 | parser->syslog = TRUE; |
| 732 | |
| 733 | return TRUE; |
| 734 | } |
| 735 | else if (element_type == ELEMENT_KEEP_UMASK) |
| 736 | { |
| 737 | if (!check_no_attributes (parser, "keep_umask", attribute_names, attribute_values, error)) |
| 738 | return FALSE; |
| 739 | |
| 740 | if (push_element (parser, ELEMENT_KEEP_UMASK) == NULL) |
| 741 | { |
| 742 | BUS_SET_OOM (error); |
| 743 | return FALSE; |
| 744 | } |
| 745 | |
| 746 | parser->keep_umask = TRUE; |
| 747 | |
| 748 | return TRUE; |
| 749 | } |
| 750 | else if (element_type == ELEMENT_PIDFILE) |
| 751 | { |
| 752 | if (!check_no_attributes (parser, "pidfile", attribute_names, attribute_values, error)) |
| 753 | return FALSE; |
| 754 | |
| 755 | if (push_element (parser, ELEMENT_PIDFILE) == NULL) |
| 756 | { |
| 757 | BUS_SET_OOM (error); |
| 758 | return FALSE; |
| 759 | } |
| 760 | |
| 761 | return TRUE; |
| 762 | } |
| 763 | else if (element_type == ELEMENT_LISTEN) |
| 764 | { |
| 765 | if (!check_no_attributes (parser, "listen", attribute_names, attribute_values, error)) |
| 766 | return FALSE; |
| 767 | |
| 768 | if (push_element (parser, ELEMENT_LISTEN) == NULL) |
| 769 | { |
| 770 | BUS_SET_OOM (error); |
| 771 | return FALSE; |
| 772 | } |
| 773 | |
| 774 | return TRUE; |
| 775 | } |
| 776 | else if (element_type == ELEMENT_AUTH) |
| 777 | { |
| 778 | if (!check_no_attributes (parser, "auth", attribute_names, attribute_values, error)) |
| 779 | return FALSE; |
| 780 | |
| 781 | if (push_element (parser, ELEMENT_AUTH) == NULL) |
| 782 | { |
| 783 | BUS_SET_OOM (error); |
| 784 | return FALSE; |
| 785 | } |
| 786 | |
| 787 | return TRUE; |
| 788 | } |
| 789 | else if (element_type == ELEMENT_SERVICEHELPER) |
| 790 | { |
| 791 | if (!check_no_attributes (parser, "servicehelper", attribute_names, attribute_values, error)) |
| 792 | return FALSE; |
| 793 | |
| 794 | if (push_element (parser, ELEMENT_SERVICEHELPER) == NULL) |
| 795 | { |
| 796 | BUS_SET_OOM (error); |
| 797 | return FALSE; |
| 798 | } |
| 799 | |
| 800 | return TRUE; |
| 801 | } |
| 802 | else if (element_type == ELEMENT_INCLUDEDIR) |
| 803 | { |
| 804 | if (!check_no_attributes (parser, "includedir", attribute_names, attribute_values, error)) |
| 805 | return FALSE; |
| 806 | |
| 807 | if (push_element (parser, ELEMENT_INCLUDEDIR) == NULL) |
| 808 | { |
| 809 | BUS_SET_OOM (error); |
| 810 | return FALSE; |
| 811 | } |
| 812 | |
| 813 | return TRUE; |
| 814 | } |
| 815 | else if (element_type == ELEMENT_STANDARD_SESSION_SERVICEDIRS) |
| 816 | { |
| 817 | DBusList *link; |
| 818 | DBusList *dirs; |
| 819 | dirs = NULL; |
| 820 | |
| 821 | if (!check_no_attributes (parser, "standard_session_servicedirs", attribute_names, attribute_values, error)) |
| 822 | return FALSE; |
| 823 | |
| 824 | if (push_element (parser, ELEMENT_STANDARD_SESSION_SERVICEDIRS) == NULL) |
| 825 | { |
| 826 | BUS_SET_OOM (error); |
| 827 | return FALSE; |
| 828 | } |
| 829 | |
| 830 | if (!_dbus_get_standard_session_servicedirs (&dirs)) |
| 831 | { |
| 832 | BUS_SET_OOM (error); |
| 833 | return FALSE; |
| 834 | } |
| 835 | |
| 836 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 837 | service_dirs_append_link_unique_or_free (&parser->service_dirs, link); |
| 838 | |
| 839 | return TRUE; |
| 840 | } |
| 841 | else if (element_type == ELEMENT_STANDARD_SYSTEM_SERVICEDIRS) |
| 842 | { |
| 843 | DBusList *link; |
| 844 | DBusList *dirs; |
| 845 | dirs = NULL; |
| 846 | |
| 847 | if (!check_no_attributes (parser, "standard_system_servicedirs", attribute_names, attribute_values, error)) |
| 848 | return FALSE; |
| 849 | |
| 850 | if (push_element (parser, ELEMENT_STANDARD_SYSTEM_SERVICEDIRS) == NULL) |
| 851 | { |
| 852 | BUS_SET_OOM (error); |
| 853 | return FALSE; |
| 854 | } |
| 855 | |
| 856 | if (!_dbus_get_standard_system_servicedirs (&dirs)) |
| 857 | { |
| 858 | BUS_SET_OOM (error); |
| 859 | return FALSE; |
| 860 | } |
| 861 | |
| 862 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 863 | service_dirs_append_link_unique_or_free (&parser->service_dirs, link); |
| 864 | |
| 865 | return TRUE; |
| 866 | } |
| 867 | else if (element_type == ELEMENT_ALLOW_ANONYMOUS) |
| 868 | { |
| 869 | if (!check_no_attributes (parser, "allow_anonymous", attribute_names, attribute_values, error)) |
| 870 | return FALSE; |
| 871 | |
| 872 | if (push_element (parser, ELEMENT_ALLOW_ANONYMOUS) == NULL) |
| 873 | { |
| 874 | BUS_SET_OOM (error); |
| 875 | return FALSE; |
| 876 | } |
| 877 | |
| 878 | parser->allow_anonymous = TRUE; |
| 879 | return TRUE; |
| 880 | } |
| 881 | else if (element_type == ELEMENT_SERVICEDIR) |
| 882 | { |
| 883 | if (!check_no_attributes (parser, "servicedir", attribute_names, attribute_values, error)) |
| 884 | return FALSE; |
| 885 | |
| 886 | if (push_element (parser, ELEMENT_SERVICEDIR) == NULL) |
| 887 | { |
| 888 | BUS_SET_OOM (error); |
| 889 | return FALSE; |
| 890 | } |
| 891 | |
| 892 | return TRUE; |
| 893 | } |
| 894 | else if (element_type == ELEMENT_INCLUDE) |
| 895 | { |
| 896 | Element *e; |
| 897 | const char *if_selinux_enabled; |
| 898 | const char *ignore_missing; |
| 899 | const char *selinux_root_relative; |
| 900 | |
| 901 | if ((e = push_element (parser, ELEMENT_INCLUDE)) == NULL) |
| 902 | { |
| 903 | BUS_SET_OOM (error); |
| 904 | return FALSE; |
| 905 | } |
| 906 | |
| 907 | e->d.include.ignore_missing = FALSE; |
| 908 | e->d.include.if_selinux_enabled = FALSE; |
| 909 | e->d.include.selinux_root_relative = FALSE; |
| 910 | |
| 911 | if (!locate_attributes (parser, "include", |
| 912 | attribute_names, |
| 913 | attribute_values, |
| 914 | error, |
| 915 | "ignore_missing", &ignore_missing, |
| 916 | "if_selinux_enabled", &if_selinux_enabled, |
| 917 | "selinux_root_relative", &selinux_root_relative, |
| 918 | NULL)) |
| 919 | return FALSE; |
| 920 | |
| 921 | if (ignore_missing != NULL) |
| 922 | { |
| 923 | if (strcmp (ignore_missing, "yes") == 0) |
| 924 | e->d.include.ignore_missing = TRUE; |
| 925 | else if (strcmp (ignore_missing, "no") == 0) |
| 926 | e->d.include.ignore_missing = FALSE; |
| 927 | else |
| 928 | { |
| 929 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 930 | "ignore_missing attribute must have value \"yes\" or \"no\""); |
| 931 | return FALSE; |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | if (if_selinux_enabled != NULL) |
| 936 | { |
| 937 | if (strcmp (if_selinux_enabled, "yes") == 0) |
| 938 | e->d.include.if_selinux_enabled = TRUE; |
| 939 | else if (strcmp (if_selinux_enabled, "no") == 0) |
| 940 | e->d.include.if_selinux_enabled = FALSE; |
| 941 | else |
| 942 | { |
| 943 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 944 | "if_selinux_enabled attribute must have value" |
| 945 | " \"yes\" or \"no\""); |
| 946 | return FALSE; |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | if (selinux_root_relative != NULL) |
| 951 | { |
| 952 | if (strcmp (selinux_root_relative, "yes") == 0) |
| 953 | e->d.include.selinux_root_relative = TRUE; |
| 954 | else if (strcmp (selinux_root_relative, "no") == 0) |
| 955 | e->d.include.selinux_root_relative = FALSE; |
| 956 | else |
| 957 | { |
| 958 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 959 | "selinux_root_relative attribute must have value" |
| 960 | " \"yes\" or \"no\""); |
| 961 | return FALSE; |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | return TRUE; |
| 966 | } |
| 967 | else if (element_type == ELEMENT_POLICY) |
| 968 | { |
| 969 | Element *e; |
| 970 | const char *context; |
| 971 | const char *user; |
| 972 | const char *group; |
| 973 | const char *at_console; |
| 974 | |
| 975 | if ((e = push_element (parser, ELEMENT_POLICY)) == NULL) |
| 976 | { |
| 977 | BUS_SET_OOM (error); |
| 978 | return FALSE; |
| 979 | } |
| 980 | |
| 981 | e->d.policy.type = POLICY_IGNORED; |
| 982 | |
| 983 | if (!locate_attributes (parser, "policy", |
| 984 | attribute_names, |
| 985 | attribute_values, |
| 986 | error, |
| 987 | "context", &context, |
| 988 | "user", &user, |
| 989 | "group", &group, |
| 990 | "at_console", &at_console, |
| 991 | NULL)) |
| 992 | return FALSE; |
| 993 | |
| 994 | if (((context && user) || |
| 995 | (context && group) || |
| 996 | (context && at_console)) || |
| 997 | ((user && group) || |
| 998 | (user && at_console)) || |
| 999 | (group && at_console) || |
| 1000 | !(context || user || group || at_console)) |
| 1001 | { |
| 1002 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1003 | "<policy> element must have exactly one of (context|user|group|at_console) attributes"); |
| 1004 | return FALSE; |
| 1005 | } |
| 1006 | |
| 1007 | if (context != NULL) |
| 1008 | { |
| 1009 | if (strcmp (context, "default") == 0) |
| 1010 | { |
| 1011 | e->d.policy.type = POLICY_DEFAULT; |
| 1012 | } |
| 1013 | else if (strcmp (context, "mandatory") == 0) |
| 1014 | { |
| 1015 | e->d.policy.type = POLICY_MANDATORY; |
| 1016 | } |
| 1017 | else |
| 1018 | { |
| 1019 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1020 | "context attribute on <policy> must have the value \"default\" or \"mandatory\", not \"%s\"", |
| 1021 | context); |
| 1022 | return FALSE; |
| 1023 | } |
| 1024 | } |
| 1025 | else if (user != NULL) |
| 1026 | { |
| 1027 | DBusString username; |
| 1028 | _dbus_string_init_const (&username, user); |
| 1029 | |
| 1030 | if (_dbus_parse_unix_user_from_config (&username, |
| 1031 | &e->d.policy.gid_uid_or_at_console)) |
| 1032 | e->d.policy.type = POLICY_USER; |
| 1033 | else |
| 1034 | _dbus_warn ("Unknown username \"%s\" in message bus configuration file\n", |
| 1035 | user); |
| 1036 | } |
| 1037 | else if (group != NULL) |
| 1038 | { |
| 1039 | DBusString group_name; |
| 1040 | _dbus_string_init_const (&group_name, group); |
| 1041 | |
| 1042 | if (_dbus_parse_unix_group_from_config (&group_name, |
| 1043 | &e->d.policy.gid_uid_or_at_console)) |
| 1044 | e->d.policy.type = POLICY_GROUP; |
| 1045 | else |
| 1046 | _dbus_warn ("Unknown group \"%s\" in message bus configuration file\n", |
| 1047 | group); |
| 1048 | } |
| 1049 | else if (at_console != NULL) |
| 1050 | { |
| 1051 | dbus_bool_t t; |
| 1052 | t = (strcmp (at_console, "true") == 0); |
| 1053 | if (t || strcmp (at_console, "false") == 0) |
| 1054 | { |
| 1055 | e->d.policy.gid_uid_or_at_console = t; |
| 1056 | e->d.policy.type = POLICY_CONSOLE; |
| 1057 | } |
| 1058 | else |
| 1059 | { |
| 1060 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1061 | "Unknown value \"%s\" for at_console in message bus configuration file", |
| 1062 | at_console); |
| 1063 | |
| 1064 | return FALSE; |
| 1065 | } |
| 1066 | } |
| 1067 | else |
| 1068 | { |
| 1069 | _dbus_assert_not_reached ("all <policy> attributes null and we didn't set error"); |
| 1070 | } |
| 1071 | |
| 1072 | return TRUE; |
| 1073 | } |
| 1074 | else if (element_type == ELEMENT_LIMIT) |
| 1075 | { |
| 1076 | Element *e; |
| 1077 | const char *name; |
| 1078 | |
| 1079 | if ((e = push_element (parser, ELEMENT_LIMIT)) == NULL) |
| 1080 | { |
| 1081 | BUS_SET_OOM (error); |
| 1082 | return FALSE; |
| 1083 | } |
| 1084 | |
| 1085 | if (!locate_attributes (parser, "limit", |
| 1086 | attribute_names, |
| 1087 | attribute_values, |
| 1088 | error, |
| 1089 | "name", &name, |
| 1090 | NULL)) |
| 1091 | return FALSE; |
| 1092 | |
| 1093 | if (name == NULL) |
| 1094 | { |
| 1095 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1096 | "<limit> element must have a \"name\" attribute"); |
| 1097 | return FALSE; |
| 1098 | } |
| 1099 | |
| 1100 | e->d.limit.name = _dbus_strdup (name); |
| 1101 | if (e->d.limit.name == NULL) |
| 1102 | { |
| 1103 | BUS_SET_OOM (error); |
| 1104 | return FALSE; |
| 1105 | } |
| 1106 | |
| 1107 | return TRUE; |
| 1108 | } |
| 1109 | else if (element_type == ELEMENT_SELINUX) |
| 1110 | { |
| 1111 | if (!check_no_attributes (parser, "selinux", attribute_names, attribute_values, error)) |
| 1112 | return FALSE; |
| 1113 | |
| 1114 | if (push_element (parser, ELEMENT_SELINUX) == NULL) |
| 1115 | { |
| 1116 | BUS_SET_OOM (error); |
| 1117 | return FALSE; |
| 1118 | } |
| 1119 | |
| 1120 | return TRUE; |
| 1121 | } |
| 1122 | else |
| 1123 | { |
| 1124 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1125 | "Element <%s> not allowed inside <%s> in configuration file", |
| 1126 | element_name, "busconfig"); |
| 1127 | return FALSE; |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | static dbus_bool_t |
| 1132 | append_rule_from_element (BusConfigParser *parser, |
| 1133 | const char *element_name, |
| 1134 | const char **attribute_names, |
| 1135 | const char **attribute_values, |
| 1136 | dbus_bool_t allow, |
| 1137 | DBusError *error) |
| 1138 | { |
| 1139 | const char *log; |
| 1140 | const char *send_interface; |
| 1141 | const char *send_member; |
| 1142 | const char *send_error; |
| 1143 | const char *send_destination; |
| 1144 | const char *send_path; |
| 1145 | const char *send_type; |
| 1146 | const char *receive_interface; |
| 1147 | const char *receive_member; |
| 1148 | const char *receive_error; |
| 1149 | const char *receive_sender; |
| 1150 | const char *receive_path; |
| 1151 | const char *receive_type; |
| 1152 | const char *eavesdrop; |
| 1153 | const char *send_requested_reply; |
| 1154 | const char *receive_requested_reply; |
| 1155 | const char *own; |
| 1156 | const char *user; |
| 1157 | const char *group; |
| 1158 | |
| 1159 | BusPolicyRule *rule; |
| 1160 | |
| 1161 | if (!locate_attributes (parser, element_name, |
| 1162 | attribute_names, |
| 1163 | attribute_values, |
| 1164 | error, |
| 1165 | "send_interface", &send_interface, |
| 1166 | "send_member", &send_member, |
| 1167 | "send_error", &send_error, |
| 1168 | "send_destination", &send_destination, |
| 1169 | "send_path", &send_path, |
| 1170 | "send_type", &send_type, |
| 1171 | "receive_interface", &receive_interface, |
| 1172 | "receive_member", &receive_member, |
| 1173 | "receive_error", &receive_error, |
| 1174 | "receive_sender", &receive_sender, |
| 1175 | "receive_path", &receive_path, |
| 1176 | "receive_type", &receive_type, |
| 1177 | "eavesdrop", &eavesdrop, |
| 1178 | "send_requested_reply", &send_requested_reply, |
| 1179 | "receive_requested_reply", &receive_requested_reply, |
| 1180 | "own", &own, |
| 1181 | "user", &user, |
| 1182 | "group", &group, |
| 1183 | "log", &log, |
| 1184 | NULL)) |
| 1185 | return FALSE; |
| 1186 | |
| 1187 | if (!(send_interface || send_member || send_error || send_destination || |
| 1188 | send_type || send_path || |
| 1189 | receive_interface || receive_member || receive_error || receive_sender || |
| 1190 | receive_type || receive_path || eavesdrop || |
| 1191 | send_requested_reply || receive_requested_reply || |
| 1192 | own || user || group)) |
| 1193 | { |
| 1194 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1195 | "Element <%s> must have one or more attributes", |
| 1196 | element_name); |
| 1197 | return FALSE; |
| 1198 | } |
| 1199 | |
| 1200 | if ((send_member && (send_interface == NULL && send_path == NULL)) || |
| 1201 | (receive_member && (receive_interface == NULL && receive_path == NULL))) |
| 1202 | { |
| 1203 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1204 | "On element <%s>, if you specify a member you must specify an interface or a path. Keep in mind that not all messages have an interface field.", |
| 1205 | element_name); |
| 1206 | return FALSE; |
| 1207 | } |
| 1208 | |
| 1209 | /* Allowed combinations of elements are: |
| 1210 | * |
| 1211 | * base, must be all send or all receive: |
| 1212 | * nothing |
| 1213 | * interface |
| 1214 | * interface + member |
| 1215 | * error |
| 1216 | * |
| 1217 | * base send_ can combine with send_destination, send_path, send_type, send_requested_reply |
| 1218 | * base receive_ with receive_sender, receive_path, receive_type, receive_requested_reply, eavesdrop |
| 1219 | * |
| 1220 | * user, group, own must occur alone |
| 1221 | * |
| 1222 | * Pretty sure the below stuff is broken, FIXME think about it more. |
| 1223 | */ |
| 1224 | |
| 1225 | if (((send_interface && send_error) || |
| 1226 | (send_interface && receive_interface) || |
| 1227 | (send_interface && receive_member) || |
| 1228 | (send_interface && receive_error) || |
| 1229 | (send_interface && receive_sender) || |
| 1230 | (send_interface && receive_requested_reply) || |
| 1231 | (send_interface && own) || |
| 1232 | (send_interface && user) || |
| 1233 | (send_interface && group)) || |
| 1234 | |
| 1235 | ((send_member && send_error) || |
| 1236 | (send_member && receive_interface) || |
| 1237 | (send_member && receive_member) || |
| 1238 | (send_member && receive_error) || |
| 1239 | (send_member && receive_sender) || |
| 1240 | (send_member && receive_requested_reply) || |
| 1241 | (send_member && own) || |
| 1242 | (send_member && user) || |
| 1243 | (send_member && group)) || |
| 1244 | |
| 1245 | ((send_error && receive_interface) || |
| 1246 | (send_error && receive_member) || |
| 1247 | (send_error && receive_error) || |
| 1248 | (send_error && receive_sender) || |
| 1249 | (send_error && receive_requested_reply) || |
| 1250 | (send_error && own) || |
| 1251 | (send_error && user) || |
| 1252 | (send_error && group)) || |
| 1253 | |
| 1254 | ((send_destination && receive_interface) || |
| 1255 | (send_destination && receive_member) || |
| 1256 | (send_destination && receive_error) || |
| 1257 | (send_destination && receive_sender) || |
| 1258 | (send_destination && receive_requested_reply) || |
| 1259 | (send_destination && own) || |
| 1260 | (send_destination && user) || |
| 1261 | (send_destination && group)) || |
| 1262 | |
| 1263 | ((send_type && receive_interface) || |
| 1264 | (send_type && receive_member) || |
| 1265 | (send_type && receive_error) || |
| 1266 | (send_type && receive_sender) || |
| 1267 | (send_type && receive_requested_reply) || |
| 1268 | (send_type && own) || |
| 1269 | (send_type && user) || |
| 1270 | (send_type && group)) || |
| 1271 | |
| 1272 | ((send_path && receive_interface) || |
| 1273 | (send_path && receive_member) || |
| 1274 | (send_path && receive_error) || |
| 1275 | (send_path && receive_sender) || |
| 1276 | (send_path && receive_requested_reply) || |
| 1277 | (send_path && own) || |
| 1278 | (send_path && user) || |
| 1279 | (send_path && group)) || |
| 1280 | |
| 1281 | ((send_requested_reply && receive_interface) || |
| 1282 | (send_requested_reply && receive_member) || |
| 1283 | (send_requested_reply && receive_error) || |
| 1284 | (send_requested_reply && receive_sender) || |
| 1285 | (send_requested_reply && receive_requested_reply) || |
| 1286 | (send_requested_reply && own) || |
| 1287 | (send_requested_reply && user) || |
| 1288 | (send_requested_reply && group)) || |
| 1289 | |
| 1290 | ((receive_interface && receive_error) || |
| 1291 | (receive_interface && own) || |
| 1292 | (receive_interface && user) || |
| 1293 | (receive_interface && group)) || |
| 1294 | |
| 1295 | ((receive_member && receive_error) || |
| 1296 | (receive_member && own) || |
| 1297 | (receive_member && user) || |
| 1298 | (receive_member && group)) || |
| 1299 | |
| 1300 | ((receive_error && own) || |
| 1301 | (receive_error && user) || |
| 1302 | (receive_error && group)) || |
| 1303 | |
| 1304 | ((eavesdrop && own) || |
| 1305 | (eavesdrop && user) || |
| 1306 | (eavesdrop && group)) || |
| 1307 | |
| 1308 | ((receive_requested_reply && own) || |
| 1309 | (receive_requested_reply && user) || |
| 1310 | (receive_requested_reply && group)) || |
| 1311 | |
| 1312 | ((own && user) || |
| 1313 | (own && group)) || |
| 1314 | |
| 1315 | ((user && group))) |
| 1316 | { |
| 1317 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1318 | "Invalid combination of attributes on element <%s>", |
| 1319 | element_name); |
| 1320 | return FALSE; |
| 1321 | } |
| 1322 | |
| 1323 | rule = NULL; |
| 1324 | |
| 1325 | /* In BusPolicyRule, NULL represents wildcard. |
| 1326 | * In the config file, '*' represents it. |
| 1327 | */ |
| 1328 | #define IS_WILDCARD(str) ((str) && ((str)[0]) == '*' && ((str)[1]) == '\0') |
| 1329 | |
| 1330 | if (send_interface || send_member || send_error || send_destination || |
| 1331 | send_path || send_type || send_requested_reply) |
| 1332 | { |
| 1333 | int message_type; |
| 1334 | |
| 1335 | if (IS_WILDCARD (send_interface)) |
| 1336 | send_interface = NULL; |
| 1337 | if (IS_WILDCARD (send_member)) |
| 1338 | send_member = NULL; |
| 1339 | if (IS_WILDCARD (send_error)) |
| 1340 | send_error = NULL; |
| 1341 | if (IS_WILDCARD (send_destination)) |
| 1342 | send_destination = NULL; |
| 1343 | if (IS_WILDCARD (send_path)) |
| 1344 | send_path = NULL; |
| 1345 | if (IS_WILDCARD (send_type)) |
| 1346 | send_type = NULL; |
| 1347 | |
| 1348 | message_type = DBUS_MESSAGE_TYPE_INVALID; |
| 1349 | if (send_type != NULL) |
| 1350 | { |
| 1351 | message_type = dbus_message_type_from_string (send_type); |
| 1352 | if (message_type == DBUS_MESSAGE_TYPE_INVALID) |
| 1353 | { |
| 1354 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1355 | "Bad message type \"%s\"", |
| 1356 | send_type); |
| 1357 | return FALSE; |
| 1358 | } |
| 1359 | } |
| 1360 | |
| 1361 | if (eavesdrop && |
| 1362 | !(strcmp (eavesdrop, "true") == 0 || |
| 1363 | strcmp (eavesdrop, "false") == 0)) |
| 1364 | { |
| 1365 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1366 | "Bad value \"%s\" for %s attribute, must be true or false", |
| 1367 | "eavesdrop", eavesdrop); |
| 1368 | return FALSE; |
| 1369 | } |
| 1370 | |
| 1371 | if (send_requested_reply && |
| 1372 | !(strcmp (send_requested_reply, "true") == 0 || |
| 1373 | strcmp (send_requested_reply, "false") == 0)) |
| 1374 | { |
| 1375 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1376 | "Bad value \"%s\" for %s attribute, must be true or false", |
| 1377 | "send_requested_reply", send_requested_reply); |
| 1378 | return FALSE; |
| 1379 | } |
| 1380 | |
| 1381 | rule = bus_policy_rule_new (BUS_POLICY_RULE_SEND, allow); |
| 1382 | if (rule == NULL) |
| 1383 | goto nomem; |
| 1384 | |
| 1385 | if (eavesdrop) |
| 1386 | rule->d.send.eavesdrop = (strcmp (eavesdrop, "true") == 0); |
| 1387 | |
| 1388 | if (log) |
| 1389 | rule->d.send.log = (strcmp (log, "true") == 0); |
| 1390 | |
| 1391 | if (send_requested_reply) |
| 1392 | rule->d.send.requested_reply = (strcmp (send_requested_reply, "true") == 0); |
| 1393 | |
| 1394 | rule->d.send.message_type = message_type; |
| 1395 | rule->d.send.path = _dbus_strdup (send_path); |
| 1396 | rule->d.send.interface = _dbus_strdup (send_interface); |
| 1397 | rule->d.send.member = _dbus_strdup (send_member); |
| 1398 | rule->d.send.error = _dbus_strdup (send_error); |
| 1399 | rule->d.send.destination = _dbus_strdup (send_destination); |
| 1400 | if (send_path && rule->d.send.path == NULL) |
| 1401 | goto nomem; |
| 1402 | if (send_interface && rule->d.send.interface == NULL) |
| 1403 | goto nomem; |
| 1404 | if (send_member && rule->d.send.member == NULL) |
| 1405 | goto nomem; |
| 1406 | if (send_error && rule->d.send.error == NULL) |
| 1407 | goto nomem; |
| 1408 | if (send_destination && rule->d.send.destination == NULL) |
| 1409 | goto nomem; |
| 1410 | } |
| 1411 | else if (receive_interface || receive_member || receive_error || receive_sender || |
| 1412 | receive_path || receive_type || eavesdrop || receive_requested_reply) |
| 1413 | { |
| 1414 | int message_type; |
| 1415 | |
| 1416 | if (IS_WILDCARD (receive_interface)) |
| 1417 | receive_interface = NULL; |
| 1418 | if (IS_WILDCARD (receive_member)) |
| 1419 | receive_member = NULL; |
| 1420 | if (IS_WILDCARD (receive_error)) |
| 1421 | receive_error = NULL; |
| 1422 | if (IS_WILDCARD (receive_sender)) |
| 1423 | receive_sender = NULL; |
| 1424 | if (IS_WILDCARD (receive_path)) |
| 1425 | receive_path = NULL; |
| 1426 | if (IS_WILDCARD (receive_type)) |
| 1427 | receive_type = NULL; |
| 1428 | |
| 1429 | message_type = DBUS_MESSAGE_TYPE_INVALID; |
| 1430 | if (receive_type != NULL) |
| 1431 | { |
| 1432 | message_type = dbus_message_type_from_string (receive_type); |
| 1433 | if (message_type == DBUS_MESSAGE_TYPE_INVALID) |
| 1434 | { |
| 1435 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1436 | "Bad message type \"%s\"", |
| 1437 | receive_type); |
| 1438 | return FALSE; |
| 1439 | } |
| 1440 | } |
| 1441 | |
| 1442 | |
| 1443 | if (eavesdrop && |
| 1444 | !(strcmp (eavesdrop, "true") == 0 || |
| 1445 | strcmp (eavesdrop, "false") == 0)) |
| 1446 | { |
| 1447 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1448 | "Bad value \"%s\" for %s attribute, must be true or false", |
| 1449 | "eavesdrop", eavesdrop); |
| 1450 | return FALSE; |
| 1451 | } |
| 1452 | |
| 1453 | if (receive_requested_reply && |
| 1454 | !(strcmp (receive_requested_reply, "true") == 0 || |
| 1455 | strcmp (receive_requested_reply, "false") == 0)) |
| 1456 | { |
| 1457 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1458 | "Bad value \"%s\" for %s attribute, must be true or false", |
| 1459 | "receive_requested_reply", receive_requested_reply); |
| 1460 | return FALSE; |
| 1461 | } |
| 1462 | |
| 1463 | rule = bus_policy_rule_new (BUS_POLICY_RULE_RECEIVE, allow); |
| 1464 | if (rule == NULL) |
| 1465 | goto nomem; |
| 1466 | |
| 1467 | if (eavesdrop) |
| 1468 | rule->d.receive.eavesdrop = (strcmp (eavesdrop, "true") == 0); |
| 1469 | |
| 1470 | if (receive_requested_reply) |
| 1471 | rule->d.receive.requested_reply = (strcmp (receive_requested_reply, "true") == 0); |
| 1472 | |
| 1473 | rule->d.receive.message_type = message_type; |
| 1474 | rule->d.receive.path = _dbus_strdup (receive_path); |
| 1475 | rule->d.receive.interface = _dbus_strdup (receive_interface); |
| 1476 | rule->d.receive.member = _dbus_strdup (receive_member); |
| 1477 | rule->d.receive.error = _dbus_strdup (receive_error); |
| 1478 | rule->d.receive.origin = _dbus_strdup (receive_sender); |
| 1479 | |
| 1480 | if (receive_path && rule->d.receive.path == NULL) |
| 1481 | goto nomem; |
| 1482 | if (receive_interface && rule->d.receive.interface == NULL) |
| 1483 | goto nomem; |
| 1484 | if (receive_member && rule->d.receive.member == NULL) |
| 1485 | goto nomem; |
| 1486 | if (receive_error && rule->d.receive.error == NULL) |
| 1487 | goto nomem; |
| 1488 | if (receive_sender && rule->d.receive.origin == NULL) |
| 1489 | goto nomem; |
| 1490 | } |
| 1491 | else if (own) |
| 1492 | { |
| 1493 | rule = bus_policy_rule_new (BUS_POLICY_RULE_OWN, allow); |
| 1494 | if (rule == NULL) |
| 1495 | goto nomem; |
| 1496 | |
| 1497 | if (IS_WILDCARD (own)) |
| 1498 | own = NULL; |
| 1499 | |
| 1500 | rule->d.own.service_name = _dbus_strdup (own); |
| 1501 | if (own && rule->d.own.service_name == NULL) |
| 1502 | goto nomem; |
| 1503 | } |
| 1504 | else if (user) |
| 1505 | { |
| 1506 | if (IS_WILDCARD (user)) |
| 1507 | { |
| 1508 | rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); |
| 1509 | if (rule == NULL) |
| 1510 | goto nomem; |
| 1511 | |
| 1512 | rule->d.user.uid = DBUS_UID_UNSET; |
| 1513 | } |
| 1514 | else |
| 1515 | { |
| 1516 | DBusString username; |
| 1517 | dbus_uid_t uid; |
| 1518 | |
| 1519 | _dbus_string_init_const (&username, user); |
| 1520 | |
| 1521 | if (_dbus_parse_unix_user_from_config (&username, &uid)) |
| 1522 | { |
| 1523 | rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); |
| 1524 | if (rule == NULL) |
| 1525 | goto nomem; |
| 1526 | |
| 1527 | rule->d.user.uid = uid; |
| 1528 | } |
| 1529 | else |
| 1530 | { |
| 1531 | _dbus_warn ("Unknown username \"%s\" on element <%s>\n", |
| 1532 | user, element_name); |
| 1533 | } |
| 1534 | } |
| 1535 | } |
| 1536 | else if (group) |
| 1537 | { |
| 1538 | if (IS_WILDCARD (group)) |
| 1539 | { |
| 1540 | rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); |
| 1541 | if (rule == NULL) |
| 1542 | goto nomem; |
| 1543 | |
| 1544 | rule->d.group.gid = DBUS_GID_UNSET; |
| 1545 | } |
| 1546 | else |
| 1547 | { |
| 1548 | DBusString groupname; |
| 1549 | dbus_gid_t gid; |
| 1550 | |
| 1551 | _dbus_string_init_const (&groupname, group); |
| 1552 | |
| 1553 | if (_dbus_parse_unix_group_from_config (&groupname, &gid)) |
| 1554 | { |
| 1555 | rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); |
| 1556 | if (rule == NULL) |
| 1557 | goto nomem; |
| 1558 | |
| 1559 | rule->d.group.gid = gid; |
| 1560 | } |
| 1561 | else |
| 1562 | { |
| 1563 | _dbus_warn ("Unknown group \"%s\" on element <%s>\n", |
| 1564 | group, element_name); |
| 1565 | } |
| 1566 | } |
| 1567 | } |
| 1568 | else |
| 1569 | _dbus_assert_not_reached ("Did not handle some combination of attributes on <allow> or <deny>"); |
| 1570 | |
| 1571 | if (rule != NULL) |
| 1572 | { |
| 1573 | Element *pe; |
| 1574 | |
| 1575 | pe = peek_element (parser); |
| 1576 | _dbus_assert (pe != NULL); |
| 1577 | _dbus_assert (pe->type == ELEMENT_POLICY); |
| 1578 | |
| 1579 | switch (pe->d.policy.type) |
| 1580 | { |
| 1581 | case POLICY_IGNORED: |
| 1582 | /* drop the rule on the floor */ |
| 1583 | break; |
| 1584 | |
| 1585 | case POLICY_DEFAULT: |
| 1586 | if (!bus_policy_append_default_rule (parser->policy, rule)) |
| 1587 | goto nomem; |
| 1588 | break; |
| 1589 | case POLICY_MANDATORY: |
| 1590 | if (!bus_policy_append_mandatory_rule (parser->policy, rule)) |
| 1591 | goto nomem; |
| 1592 | break; |
| 1593 | case POLICY_USER: |
| 1594 | if (!BUS_POLICY_RULE_IS_PER_CLIENT (rule)) |
| 1595 | { |
| 1596 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1597 | "<%s> rule cannot be per-user because it has bus-global semantics", |
| 1598 | element_name); |
| 1599 | goto failed; |
| 1600 | } |
| 1601 | |
| 1602 | if (!bus_policy_append_user_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, |
| 1603 | rule)) |
| 1604 | goto nomem; |
| 1605 | break; |
| 1606 | case POLICY_GROUP: |
| 1607 | if (!BUS_POLICY_RULE_IS_PER_CLIENT (rule)) |
| 1608 | { |
| 1609 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1610 | "<%s> rule cannot be per-group because it has bus-global semantics", |
| 1611 | element_name); |
| 1612 | goto failed; |
| 1613 | } |
| 1614 | |
| 1615 | if (!bus_policy_append_group_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, |
| 1616 | rule)) |
| 1617 | goto nomem; |
| 1618 | break; |
| 1619 | |
| 1620 | |
| 1621 | case POLICY_CONSOLE: |
| 1622 | if (!bus_policy_append_console_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, |
| 1623 | rule)) |
| 1624 | goto nomem; |
| 1625 | break; |
| 1626 | } |
| 1627 | |
| 1628 | bus_policy_rule_unref (rule); |
| 1629 | rule = NULL; |
| 1630 | } |
| 1631 | |
| 1632 | return TRUE; |
| 1633 | |
| 1634 | nomem: |
| 1635 | BUS_SET_OOM (error); |
| 1636 | failed: |
| 1637 | if (rule) |
| 1638 | bus_policy_rule_unref (rule); |
| 1639 | return FALSE; |
| 1640 | } |
| 1641 | |
| 1642 | static dbus_bool_t |
| 1643 | start_policy_child (BusConfigParser *parser, |
| 1644 | const char *element_name, |
| 1645 | const char **attribute_names, |
| 1646 | const char **attribute_values, |
| 1647 | DBusError *error) |
| 1648 | { |
| 1649 | if (strcmp (element_name, "allow") == 0) |
| 1650 | { |
| 1651 | if (!append_rule_from_element (parser, element_name, |
| 1652 | attribute_names, attribute_values, |
| 1653 | TRUE, error)) |
| 1654 | return FALSE; |
| 1655 | |
| 1656 | if (push_element (parser, ELEMENT_ALLOW) == NULL) |
| 1657 | { |
| 1658 | BUS_SET_OOM (error); |
| 1659 | return FALSE; |
| 1660 | } |
| 1661 | |
| 1662 | return TRUE; |
| 1663 | } |
| 1664 | else if (strcmp (element_name, "deny") == 0) |
| 1665 | { |
| 1666 | if (!append_rule_from_element (parser, element_name, |
| 1667 | attribute_names, attribute_values, |
| 1668 | FALSE, error)) |
| 1669 | return FALSE; |
| 1670 | |
| 1671 | if (push_element (parser, ELEMENT_DENY) == NULL) |
| 1672 | { |
| 1673 | BUS_SET_OOM (error); |
| 1674 | return FALSE; |
| 1675 | } |
| 1676 | |
| 1677 | return TRUE; |
| 1678 | } |
| 1679 | else |
| 1680 | { |
| 1681 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1682 | "Element <%s> not allowed inside <%s> in configuration file", |
| 1683 | element_name, "policy"); |
| 1684 | return FALSE; |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | static dbus_bool_t |
| 1689 | start_selinux_child (BusConfigParser *parser, |
| 1690 | const char *element_name, |
| 1691 | const char **attribute_names, |
| 1692 | const char **attribute_values, |
| 1693 | DBusError *error) |
| 1694 | { |
| 1695 | char *own_copy; |
| 1696 | char *context_copy; |
| 1697 | |
| 1698 | own_copy = NULL; |
| 1699 | context_copy = NULL; |
| 1700 | |
| 1701 | if (strcmp (element_name, "associate") == 0) |
| 1702 | { |
| 1703 | const char *own; |
| 1704 | const char *context; |
| 1705 | |
| 1706 | if (!locate_attributes (parser, "associate", |
| 1707 | attribute_names, |
| 1708 | attribute_values, |
| 1709 | error, |
| 1710 | "own", &own, |
| 1711 | "context", &context, |
| 1712 | NULL)) |
| 1713 | return FALSE; |
| 1714 | |
| 1715 | if (push_element (parser, ELEMENT_ASSOCIATE) == NULL) |
| 1716 | { |
| 1717 | BUS_SET_OOM (error); |
| 1718 | return FALSE; |
| 1719 | } |
| 1720 | |
| 1721 | if (own == NULL || context == NULL) |
| 1722 | { |
| 1723 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1724 | "Element <associate> must have attributes own=\"<servicename>\" and context=\"<selinux context>\""); |
| 1725 | return FALSE; |
| 1726 | } |
| 1727 | |
| 1728 | own_copy = _dbus_strdup (own); |
| 1729 | if (own_copy == NULL) |
| 1730 | goto oom; |
| 1731 | context_copy = _dbus_strdup (context); |
| 1732 | if (context_copy == NULL) |
| 1733 | goto oom; |
| 1734 | |
| 1735 | if (!_dbus_hash_table_insert_string (parser->service_context_table, |
| 1736 | own_copy, context_copy)) |
| 1737 | goto oom; |
| 1738 | |
| 1739 | return TRUE; |
| 1740 | } |
| 1741 | else |
| 1742 | { |
| 1743 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1744 | "Element <%s> not allowed inside <%s> in configuration file", |
| 1745 | element_name, "selinux"); |
| 1746 | return FALSE; |
| 1747 | } |
| 1748 | |
| 1749 | oom: |
| 1750 | if (own_copy) |
| 1751 | dbus_free (own_copy); |
| 1752 | |
| 1753 | if (context_copy) |
| 1754 | dbus_free (context_copy); |
| 1755 | |
| 1756 | BUS_SET_OOM (error); |
| 1757 | return FALSE; |
| 1758 | } |
| 1759 | |
| 1760 | dbus_bool_t |
| 1761 | bus_config_parser_start_element (BusConfigParser *parser, |
| 1762 | const char *element_name, |
| 1763 | const char **attribute_names, |
| 1764 | const char **attribute_values, |
| 1765 | DBusError *error) |
| 1766 | { |
| 1767 | ElementType t; |
| 1768 | |
| 1769 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1770 | |
| 1771 | /* printf ("START: %s\n", element_name); */ |
| 1772 | |
| 1773 | t = top_element_type (parser); |
| 1774 | |
| 1775 | if (t == ELEMENT_NONE) |
| 1776 | { |
| 1777 | if (strcmp (element_name, "busconfig") == 0) |
| 1778 | { |
| 1779 | if (!check_no_attributes (parser, "busconfig", attribute_names, attribute_values, error)) |
| 1780 | return FALSE; |
| 1781 | |
| 1782 | if (push_element (parser, ELEMENT_BUSCONFIG) == NULL) |
| 1783 | { |
| 1784 | BUS_SET_OOM (error); |
| 1785 | return FALSE; |
| 1786 | } |
| 1787 | |
| 1788 | return TRUE; |
| 1789 | } |
| 1790 | else |
| 1791 | { |
| 1792 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1793 | "Unknown element <%s> at root of configuration file", |
| 1794 | element_name); |
| 1795 | return FALSE; |
| 1796 | } |
| 1797 | } |
| 1798 | else if (t == ELEMENT_BUSCONFIG) |
| 1799 | { |
| 1800 | return start_busconfig_child (parser, element_name, |
| 1801 | attribute_names, attribute_values, |
| 1802 | error); |
| 1803 | } |
| 1804 | else if (t == ELEMENT_POLICY) |
| 1805 | { |
| 1806 | return start_policy_child (parser, element_name, |
| 1807 | attribute_names, attribute_values, |
| 1808 | error); |
| 1809 | } |
| 1810 | else if (t == ELEMENT_SELINUX) |
| 1811 | { |
| 1812 | return start_selinux_child (parser, element_name, |
| 1813 | attribute_names, attribute_values, |
| 1814 | error); |
| 1815 | } |
| 1816 | else |
| 1817 | { |
| 1818 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1819 | "Element <%s> is not allowed in this context", |
| 1820 | element_name); |
| 1821 | return FALSE; |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | static dbus_bool_t |
| 1826 | set_limit (BusConfigParser *parser, |
| 1827 | const char *name, |
| 1828 | long value, |
| 1829 | DBusError *error) |
| 1830 | { |
| 1831 | dbus_bool_t must_be_positive; |
| 1832 | dbus_bool_t must_be_int; |
| 1833 | |
| 1834 | must_be_int = FALSE; |
| 1835 | must_be_positive = FALSE; |
| 1836 | |
| 1837 | if (strcmp (name, "max_incoming_bytes") == 0) |
| 1838 | { |
| 1839 | must_be_positive = TRUE; |
| 1840 | parser->limits.max_incoming_bytes = value; |
| 1841 | } |
| 1842 | else if (strcmp (name, "max_incoming_unix_fds") == 0) |
| 1843 | { |
| 1844 | must_be_positive = TRUE; |
| 1845 | parser->limits.max_incoming_unix_fds = value; |
| 1846 | } |
| 1847 | else if (strcmp (name, "max_outgoing_bytes") == 0) |
| 1848 | { |
| 1849 | must_be_positive = TRUE; |
| 1850 | parser->limits.max_outgoing_bytes = value; |
| 1851 | } |
| 1852 | else if (strcmp (name, "max_outgoing_unix_fds") == 0) |
| 1853 | { |
| 1854 | must_be_positive = TRUE; |
| 1855 | parser->limits.max_outgoing_unix_fds = value; |
| 1856 | } |
| 1857 | else if (strcmp (name, "max_message_size") == 0) |
| 1858 | { |
| 1859 | must_be_positive = TRUE; |
| 1860 | parser->limits.max_message_size = value; |
| 1861 | } |
| 1862 | else if (strcmp (name, "max_message_unix_fds") == 0) |
| 1863 | { |
| 1864 | must_be_positive = TRUE; |
| 1865 | parser->limits.max_message_unix_fds = value; |
| 1866 | } |
| 1867 | else if (strcmp (name, "service_start_timeout") == 0) |
| 1868 | { |
| 1869 | must_be_positive = TRUE; |
| 1870 | must_be_int = TRUE; |
| 1871 | parser->limits.activation_timeout = value; |
| 1872 | } |
| 1873 | else if (strcmp (name, "auth_timeout") == 0) |
| 1874 | { |
| 1875 | must_be_positive = TRUE; |
| 1876 | must_be_int = TRUE; |
| 1877 | parser->limits.auth_timeout = value; |
| 1878 | } |
| 1879 | else if (strcmp (name, "reply_timeout") == 0) |
| 1880 | { |
| 1881 | must_be_positive = TRUE; |
| 1882 | must_be_int = TRUE; |
| 1883 | parser->limits.reply_timeout = value; |
| 1884 | } |
| 1885 | else if (strcmp (name, "max_completed_connections") == 0) |
| 1886 | { |
| 1887 | must_be_positive = TRUE; |
| 1888 | must_be_int = TRUE; |
| 1889 | parser->limits.max_completed_connections = value; |
| 1890 | } |
| 1891 | else if (strcmp (name, "max_incomplete_connections") == 0) |
| 1892 | { |
| 1893 | must_be_positive = TRUE; |
| 1894 | must_be_int = TRUE; |
| 1895 | parser->limits.max_incomplete_connections = value; |
| 1896 | } |
| 1897 | else if (strcmp (name, "max_connections_per_user") == 0) |
| 1898 | { |
| 1899 | must_be_positive = TRUE; |
| 1900 | must_be_int = TRUE; |
| 1901 | parser->limits.max_connections_per_user = value; |
| 1902 | } |
| 1903 | else if (strcmp (name, "max_pending_service_starts") == 0) |
| 1904 | { |
| 1905 | must_be_positive = TRUE; |
| 1906 | must_be_int = TRUE; |
| 1907 | parser->limits.max_pending_activations = value; |
| 1908 | } |
| 1909 | else if (strcmp (name, "max_names_per_connection") == 0) |
| 1910 | { |
| 1911 | must_be_positive = TRUE; |
| 1912 | must_be_int = TRUE; |
| 1913 | parser->limits.max_services_per_connection = value; |
| 1914 | } |
| 1915 | else if (strcmp (name, "max_match_rules_per_connection") == 0) |
| 1916 | { |
| 1917 | must_be_positive = TRUE; |
| 1918 | must_be_int = TRUE; |
| 1919 | parser->limits.max_match_rules_per_connection = value; |
| 1920 | } |
| 1921 | else if (strcmp (name, "max_replies_per_connection") == 0) |
| 1922 | { |
| 1923 | must_be_positive = TRUE; |
| 1924 | must_be_int = TRUE; |
| 1925 | parser->limits.max_replies_per_connection = value; |
| 1926 | } |
| 1927 | else |
| 1928 | { |
| 1929 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1930 | "There is no limit called \"%s\"\n", |
| 1931 | name); |
| 1932 | return FALSE; |
| 1933 | } |
| 1934 | |
| 1935 | if (must_be_positive && value < 0) |
| 1936 | { |
| 1937 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1938 | "<limit name=\"%s\"> must be a positive number\n", |
| 1939 | name); |
| 1940 | return FALSE; |
| 1941 | } |
| 1942 | |
| 1943 | if (must_be_int && |
| 1944 | (value < _DBUS_INT_MIN || value > _DBUS_INT_MAX)) |
| 1945 | { |
| 1946 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1947 | "<limit name=\"%s\"> value is too large\n", |
| 1948 | name); |
| 1949 | return FALSE; |
| 1950 | } |
| 1951 | |
| 1952 | return TRUE; |
| 1953 | } |
| 1954 | |
| 1955 | dbus_bool_t |
| 1956 | bus_config_parser_end_element (BusConfigParser *parser, |
| 1957 | const char *element_name, |
| 1958 | DBusError *error) |
| 1959 | { |
| 1960 | ElementType t; |
| 1961 | const char *n; |
| 1962 | Element *e; |
| 1963 | |
| 1964 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1965 | |
| 1966 | /* printf ("END: %s\n", element_name); */ |
| 1967 | |
| 1968 | t = top_element_type (parser); |
| 1969 | |
| 1970 | if (t == ELEMENT_NONE) |
| 1971 | { |
| 1972 | /* should probably be an assertion failure but |
| 1973 | * being paranoid about XML parsers |
| 1974 | */ |
| 1975 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1976 | "XML parser ended element with no element on the stack"); |
| 1977 | return FALSE; |
| 1978 | } |
| 1979 | |
| 1980 | n = bus_config_parser_element_type_to_name (t); |
| 1981 | _dbus_assert (n != NULL); |
| 1982 | if (strcmp (n, element_name) != 0) |
| 1983 | { |
| 1984 | /* should probably be an assertion failure but |
| 1985 | * being paranoid about XML parsers |
| 1986 | */ |
| 1987 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 1988 | "XML element <%s> ended but topmost element on the stack was <%s>", |
| 1989 | element_name, n); |
| 1990 | return FALSE; |
| 1991 | } |
| 1992 | |
| 1993 | e = peek_element (parser); |
| 1994 | _dbus_assert (e != NULL); |
| 1995 | |
| 1996 | switch (e->type) |
| 1997 | { |
| 1998 | case ELEMENT_NONE: |
| 1999 | _dbus_assert_not_reached ("element in stack has no type"); |
| 2000 | break; |
| 2001 | |
| 2002 | case ELEMENT_INCLUDE: |
| 2003 | case ELEMENT_USER: |
| 2004 | case ELEMENT_TYPE: |
| 2005 | case ELEMENT_LISTEN: |
| 2006 | case ELEMENT_PIDFILE: |
| 2007 | case ELEMENT_AUTH: |
| 2008 | case ELEMENT_SERVICEDIR: |
| 2009 | case ELEMENT_SERVICEHELPER: |
| 2010 | case ELEMENT_INCLUDEDIR: |
| 2011 | case ELEMENT_LIMIT: |
| 2012 | if (!e->had_content) |
| 2013 | { |
| 2014 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2015 | "XML element <%s> was expected to have content inside it", |
| 2016 | bus_config_parser_element_type_to_name (e->type)); |
| 2017 | return FALSE; |
| 2018 | } |
| 2019 | |
| 2020 | if (e->type == ELEMENT_LIMIT) |
| 2021 | { |
| 2022 | if (!set_limit (parser, e->d.limit.name, e->d.limit.value, |
| 2023 | error)) |
| 2024 | return FALSE; |
| 2025 | } |
| 2026 | break; |
| 2027 | |
| 2028 | case ELEMENT_BUSCONFIG: |
| 2029 | case ELEMENT_POLICY: |
| 2030 | case ELEMENT_ALLOW: |
| 2031 | case ELEMENT_DENY: |
| 2032 | case ELEMENT_FORK: |
| 2033 | case ELEMENT_SYSLOG: |
| 2034 | case ELEMENT_KEEP_UMASK: |
| 2035 | case ELEMENT_SELINUX: |
| 2036 | case ELEMENT_ASSOCIATE: |
| 2037 | case ELEMENT_STANDARD_SESSION_SERVICEDIRS: |
| 2038 | case ELEMENT_STANDARD_SYSTEM_SERVICEDIRS: |
| 2039 | case ELEMENT_ALLOW_ANONYMOUS: |
| 2040 | break; |
| 2041 | } |
| 2042 | |
| 2043 | pop_element (parser); |
| 2044 | |
| 2045 | return TRUE; |
| 2046 | } |
| 2047 | |
| 2048 | static dbus_bool_t |
| 2049 | all_whitespace (const DBusString *str) |
| 2050 | { |
| 2051 | int i; |
| 2052 | |
| 2053 | _dbus_string_skip_white (str, 0, &i); |
| 2054 | |
| 2055 | return i == _dbus_string_get_length (str); |
| 2056 | } |
| 2057 | |
| 2058 | static dbus_bool_t |
| 2059 | make_full_path (const DBusString *basedir, |
| 2060 | const DBusString *filename, |
| 2061 | DBusString *full_path) |
| 2062 | { |
| 2063 | if (_dbus_path_is_absolute (filename)) |
| 2064 | { |
| 2065 | return _dbus_string_copy (filename, 0, full_path, 0); |
| 2066 | } |
| 2067 | else |
| 2068 | { |
| 2069 | if (!_dbus_string_copy (basedir, 0, full_path, 0)) |
| 2070 | return FALSE; |
| 2071 | |
| 2072 | if (!_dbus_concat_dir_and_file (full_path, filename)) |
| 2073 | return FALSE; |
| 2074 | |
| 2075 | return TRUE; |
| 2076 | } |
| 2077 | } |
| 2078 | |
| 2079 | static dbus_bool_t |
| 2080 | include_file (BusConfigParser *parser, |
| 2081 | const DBusString *filename, |
| 2082 | dbus_bool_t ignore_missing, |
| 2083 | DBusError *error) |
| 2084 | { |
| 2085 | /* FIXME good test case for this would load each config file in the |
| 2086 | * test suite both alone, and as an include, and check |
| 2087 | * that the result is the same |
| 2088 | */ |
| 2089 | BusConfigParser *included; |
| 2090 | const char *filename_str; |
| 2091 | DBusError tmp_error; |
| 2092 | |
| 2093 | dbus_error_init (&tmp_error); |
| 2094 | |
| 2095 | filename_str = _dbus_string_get_const_data (filename); |
| 2096 | |
| 2097 | /* Check to make sure this file hasn't already been included. */ |
| 2098 | if (seen_include (parser, filename)) |
| 2099 | { |
| 2100 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2101 | "Circular inclusion of file '%s'", |
| 2102 | filename_str); |
| 2103 | return FALSE; |
| 2104 | } |
| 2105 | |
| 2106 | if (! _dbus_list_append (&parser->included_files, (void *) filename_str)) |
| 2107 | { |
| 2108 | BUS_SET_OOM (error); |
| 2109 | return FALSE; |
| 2110 | } |
| 2111 | |
| 2112 | /* Since parser is passed in as the parent, included |
| 2113 | inherits parser's limits. */ |
| 2114 | included = bus_config_load (filename, FALSE, parser, &tmp_error); |
| 2115 | |
| 2116 | _dbus_list_pop_last (&parser->included_files); |
| 2117 | |
| 2118 | if (included == NULL) |
| 2119 | { |
| 2120 | _DBUS_ASSERT_ERROR_CONTENT_IS_SET (&tmp_error); |
| 2121 | |
| 2122 | if (dbus_error_has_name (&tmp_error, DBUS_ERROR_FILE_NOT_FOUND) && |
| 2123 | ignore_missing) |
| 2124 | { |
| 2125 | dbus_error_free (&tmp_error); |
| 2126 | return TRUE; |
| 2127 | } |
| 2128 | else |
| 2129 | { |
| 2130 | dbus_move_error (&tmp_error, error); |
| 2131 | return FALSE; |
| 2132 | } |
| 2133 | } |
| 2134 | else |
| 2135 | { |
| 2136 | _DBUS_ASSERT_ERROR_CONTENT_IS_CLEAR (&tmp_error); |
| 2137 | |
| 2138 | if (!merge_included (parser, included, error)) |
| 2139 | { |
| 2140 | bus_config_parser_unref (included); |
| 2141 | return FALSE; |
| 2142 | } |
| 2143 | |
| 2144 | /* Copy included's limits back to parser. */ |
| 2145 | parser->limits = included->limits; |
| 2146 | |
| 2147 | bus_config_parser_unref (included); |
| 2148 | return TRUE; |
| 2149 | } |
| 2150 | } |
| 2151 | |
| 2152 | static dbus_bool_t |
| 2153 | servicehelper_path (BusConfigParser *parser, |
| 2154 | const DBusString *filename, |
| 2155 | DBusError *error) |
| 2156 | { |
| 2157 | const char *filename_str; |
| 2158 | char *servicehelper; |
| 2159 | |
| 2160 | filename_str = _dbus_string_get_const_data (filename); |
| 2161 | |
| 2162 | /* copy to avoid overwriting with NULL on OOM */ |
| 2163 | servicehelper = _dbus_strdup (filename_str); |
| 2164 | |
| 2165 | /* check for OOM */ |
| 2166 | if (servicehelper == NULL) |
| 2167 | { |
| 2168 | BUS_SET_OOM (error); |
| 2169 | return FALSE; |
| 2170 | } |
| 2171 | |
| 2172 | /* save the latest servicehelper only if not OOM */ |
| 2173 | dbus_free (parser->servicehelper); |
| 2174 | parser->servicehelper = servicehelper; |
| 2175 | |
| 2176 | /* We don't check whether the helper exists; instead we |
| 2177 | * would just fail to ever activate anything if it doesn't. |
| 2178 | * This allows an admin to fix the problem if it doesn't exist. |
| 2179 | * It also allows the parser test suite to successfully parse |
| 2180 | * test cases without installing the helper. ;-) |
| 2181 | */ |
| 2182 | |
| 2183 | return TRUE; |
| 2184 | } |
| 2185 | |
| 2186 | static dbus_bool_t |
| 2187 | include_dir (BusConfigParser *parser, |
| 2188 | const DBusString *dirname, |
| 2189 | DBusError *error) |
| 2190 | { |
| 2191 | DBusString filename; |
| 2192 | dbus_bool_t retval; |
| 2193 | DBusError tmp_error; |
| 2194 | DBusDirIter *dir; |
| 2195 | char *s; |
| 2196 | |
| 2197 | if (!_dbus_string_init (&filename)) |
| 2198 | { |
| 2199 | BUS_SET_OOM (error); |
| 2200 | return FALSE; |
| 2201 | } |
| 2202 | |
| 2203 | retval = FALSE; |
| 2204 | |
| 2205 | dir = _dbus_directory_open (dirname, error); |
| 2206 | |
| 2207 | if (dir == NULL) |
| 2208 | goto failed; |
| 2209 | |
| 2210 | dbus_error_init (&tmp_error); |
| 2211 | while (_dbus_directory_get_next_file (dir, &filename, &tmp_error)) |
| 2212 | { |
| 2213 | DBusString full_path; |
| 2214 | |
| 2215 | if (!_dbus_string_init (&full_path)) |
| 2216 | { |
| 2217 | BUS_SET_OOM (error); |
| 2218 | goto failed; |
| 2219 | } |
| 2220 | |
| 2221 | if (!_dbus_string_copy (dirname, 0, &full_path, 0)) |
| 2222 | { |
| 2223 | BUS_SET_OOM (error); |
| 2224 | _dbus_string_free (&full_path); |
| 2225 | goto failed; |
| 2226 | } |
| 2227 | |
| 2228 | if (!_dbus_concat_dir_and_file (&full_path, &filename)) |
| 2229 | { |
| 2230 | BUS_SET_OOM (error); |
| 2231 | _dbus_string_free (&full_path); |
| 2232 | goto failed; |
| 2233 | } |
| 2234 | |
| 2235 | if (_dbus_string_ends_with_c_str (&full_path, ".conf")) |
| 2236 | { |
| 2237 | if (!include_file (parser, &full_path, TRUE, error)) |
| 2238 | { |
| 2239 | _dbus_string_free (&full_path); |
| 2240 | goto failed; |
| 2241 | } |
| 2242 | } |
| 2243 | |
| 2244 | _dbus_string_free (&full_path); |
| 2245 | } |
| 2246 | |
| 2247 | if (dbus_error_is_set (&tmp_error)) |
| 2248 | { |
| 2249 | dbus_move_error (&tmp_error, error); |
| 2250 | goto failed; |
| 2251 | } |
| 2252 | |
| 2253 | |
| 2254 | if (!_dbus_string_copy_data (dirname, &s)) |
| 2255 | { |
| 2256 | BUS_SET_OOM (error); |
| 2257 | goto failed; |
| 2258 | } |
| 2259 | |
| 2260 | if (!_dbus_list_append (&parser->conf_dirs, s)) |
| 2261 | { |
| 2262 | dbus_free (s); |
| 2263 | BUS_SET_OOM (error); |
| 2264 | goto failed; |
| 2265 | } |
| 2266 | |
| 2267 | retval = TRUE; |
| 2268 | |
| 2269 | failed: |
| 2270 | _dbus_string_free (&filename); |
| 2271 | |
| 2272 | if (dir) |
| 2273 | _dbus_directory_close (dir); |
| 2274 | |
| 2275 | return retval; |
| 2276 | } |
| 2277 | |
| 2278 | dbus_bool_t |
| 2279 | bus_config_parser_content (BusConfigParser *parser, |
| 2280 | const DBusString *content, |
| 2281 | DBusError *error) |
| 2282 | { |
| 2283 | Element *e; |
| 2284 | |
| 2285 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 2286 | |
| 2287 | #if 0 |
| 2288 | { |
| 2289 | const char *c_str; |
| 2290 | |
| 2291 | _dbus_string_get_const_data (content, &c_str); |
| 2292 | |
| 2293 | printf ("CONTENT %d bytes: %s\n", _dbus_string_get_length (content), c_str); |
| 2294 | } |
| 2295 | #endif |
| 2296 | |
| 2297 | e = peek_element (parser); |
| 2298 | if (e == NULL) |
| 2299 | { |
| 2300 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2301 | "Text content outside of any XML element in configuration file"); |
| 2302 | return FALSE; |
| 2303 | } |
| 2304 | else if (e->had_content) |
| 2305 | { |
| 2306 | _dbus_assert_not_reached ("Element had multiple content blocks"); |
| 2307 | return FALSE; |
| 2308 | } |
| 2309 | |
| 2310 | switch (top_element_type (parser)) |
| 2311 | { |
| 2312 | case ELEMENT_NONE: |
| 2313 | _dbus_assert_not_reached ("element at top of stack has no type"); |
| 2314 | return FALSE; |
| 2315 | |
| 2316 | case ELEMENT_BUSCONFIG: |
| 2317 | case ELEMENT_POLICY: |
| 2318 | case ELEMENT_ALLOW: |
| 2319 | case ELEMENT_DENY: |
| 2320 | case ELEMENT_FORK: |
| 2321 | case ELEMENT_SYSLOG: |
| 2322 | case ELEMENT_KEEP_UMASK: |
| 2323 | case ELEMENT_STANDARD_SESSION_SERVICEDIRS: |
| 2324 | case ELEMENT_STANDARD_SYSTEM_SERVICEDIRS: |
| 2325 | case ELEMENT_ALLOW_ANONYMOUS: |
| 2326 | case ELEMENT_SELINUX: |
| 2327 | case ELEMENT_ASSOCIATE: |
| 2328 | if (all_whitespace (content)) |
| 2329 | return TRUE; |
| 2330 | else |
| 2331 | { |
| 2332 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2333 | "No text content expected inside XML element %s in configuration file", |
| 2334 | bus_config_parser_element_type_to_name (top_element_type (parser))); |
| 2335 | return FALSE; |
| 2336 | } |
| 2337 | |
| 2338 | case ELEMENT_PIDFILE: |
| 2339 | { |
| 2340 | char *s; |
| 2341 | |
| 2342 | e->had_content = TRUE; |
| 2343 | |
| 2344 | if (!_dbus_string_copy_data (content, &s)) |
| 2345 | goto nomem; |
| 2346 | |
| 2347 | dbus_free (parser->pidfile); |
| 2348 | parser->pidfile = s; |
| 2349 | } |
| 2350 | break; |
| 2351 | |
| 2352 | case ELEMENT_INCLUDE: |
| 2353 | { |
| 2354 | DBusString full_path, selinux_policy_root; |
| 2355 | |
| 2356 | e->had_content = TRUE; |
| 2357 | |
| 2358 | if (e->d.include.if_selinux_enabled |
| 2359 | && !bus_selinux_enabled ()) |
| 2360 | break; |
| 2361 | |
| 2362 | if (!_dbus_string_init (&full_path)) |
| 2363 | goto nomem; |
| 2364 | |
| 2365 | if (e->d.include.selinux_root_relative) |
| 2366 | { |
| 2367 | if (!bus_selinux_get_policy_root ()) |
| 2368 | { |
| 2369 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2370 | "Could not determine SELinux policy root for relative inclusion"); |
| 2371 | _dbus_string_free (&full_path); |
| 2372 | return FALSE; |
| 2373 | } |
| 2374 | _dbus_string_init_const (&selinux_policy_root, |
| 2375 | bus_selinux_get_policy_root ()); |
| 2376 | if (!make_full_path (&selinux_policy_root, content, &full_path)) |
| 2377 | { |
| 2378 | _dbus_string_free (&full_path); |
| 2379 | goto nomem; |
| 2380 | } |
| 2381 | } |
| 2382 | else if (!make_full_path (&parser->basedir, content, &full_path)) |
| 2383 | { |
| 2384 | _dbus_string_free (&full_path); |
| 2385 | goto nomem; |
| 2386 | } |
| 2387 | |
| 2388 | if (!include_file (parser, &full_path, |
| 2389 | e->d.include.ignore_missing, error)) |
| 2390 | { |
| 2391 | _dbus_string_free (&full_path); |
| 2392 | return FALSE; |
| 2393 | } |
| 2394 | |
| 2395 | _dbus_string_free (&full_path); |
| 2396 | } |
| 2397 | break; |
| 2398 | |
| 2399 | case ELEMENT_SERVICEHELPER: |
| 2400 | { |
| 2401 | DBusString full_path; |
| 2402 | |
| 2403 | e->had_content = TRUE; |
| 2404 | |
| 2405 | if (!_dbus_string_init (&full_path)) |
| 2406 | goto nomem; |
| 2407 | |
| 2408 | if (!make_full_path (&parser->basedir, content, &full_path)) |
| 2409 | { |
| 2410 | _dbus_string_free (&full_path); |
| 2411 | goto nomem; |
| 2412 | } |
| 2413 | |
| 2414 | if (!servicehelper_path (parser, &full_path, error)) |
| 2415 | { |
| 2416 | _dbus_string_free (&full_path); |
| 2417 | return FALSE; |
| 2418 | } |
| 2419 | |
| 2420 | _dbus_string_free (&full_path); |
| 2421 | } |
| 2422 | break; |
| 2423 | |
| 2424 | case ELEMENT_INCLUDEDIR: |
| 2425 | { |
| 2426 | DBusString full_path; |
| 2427 | |
| 2428 | e->had_content = TRUE; |
| 2429 | |
| 2430 | if (!_dbus_string_init (&full_path)) |
| 2431 | goto nomem; |
| 2432 | |
| 2433 | if (!make_full_path (&parser->basedir, content, &full_path)) |
| 2434 | { |
| 2435 | _dbus_string_free (&full_path); |
| 2436 | goto nomem; |
| 2437 | } |
| 2438 | |
| 2439 | if (!include_dir (parser, &full_path, error)) |
| 2440 | { |
| 2441 | _dbus_string_free (&full_path); |
| 2442 | return FALSE; |
| 2443 | } |
| 2444 | |
| 2445 | _dbus_string_free (&full_path); |
| 2446 | } |
| 2447 | break; |
| 2448 | |
| 2449 | case ELEMENT_USER: |
| 2450 | { |
| 2451 | char *s; |
| 2452 | |
| 2453 | e->had_content = TRUE; |
| 2454 | |
| 2455 | if (!_dbus_string_copy_data (content, &s)) |
| 2456 | goto nomem; |
| 2457 | |
| 2458 | dbus_free (parser->user); |
| 2459 | parser->user = s; |
| 2460 | } |
| 2461 | break; |
| 2462 | |
| 2463 | case ELEMENT_TYPE: |
| 2464 | { |
| 2465 | char *s; |
| 2466 | |
| 2467 | e->had_content = TRUE; |
| 2468 | |
| 2469 | if (!_dbus_string_copy_data (content, &s)) |
| 2470 | goto nomem; |
| 2471 | |
| 2472 | dbus_free (parser->bus_type); |
| 2473 | parser->bus_type = s; |
| 2474 | } |
| 2475 | break; |
| 2476 | |
| 2477 | case ELEMENT_LISTEN: |
| 2478 | { |
| 2479 | char *s; |
| 2480 | |
| 2481 | e->had_content = TRUE; |
| 2482 | |
| 2483 | if (!_dbus_string_copy_data (content, &s)) |
| 2484 | goto nomem; |
| 2485 | |
| 2486 | if (!_dbus_list_append (&parser->listen_on, |
| 2487 | s)) |
| 2488 | { |
| 2489 | dbus_free (s); |
| 2490 | goto nomem; |
| 2491 | } |
| 2492 | } |
| 2493 | break; |
| 2494 | |
| 2495 | case ELEMENT_AUTH: |
| 2496 | { |
| 2497 | char *s; |
| 2498 | |
| 2499 | e->had_content = TRUE; |
| 2500 | |
| 2501 | if (!_dbus_string_copy_data (content, &s)) |
| 2502 | goto nomem; |
| 2503 | |
| 2504 | if (!_dbus_list_append (&parser->mechanisms, |
| 2505 | s)) |
| 2506 | { |
| 2507 | dbus_free (s); |
| 2508 | goto nomem; |
| 2509 | } |
| 2510 | } |
| 2511 | break; |
| 2512 | |
| 2513 | case ELEMENT_SERVICEDIR: |
| 2514 | { |
| 2515 | char *s; |
| 2516 | DBusString full_path; |
| 2517 | |
| 2518 | e->had_content = TRUE; |
| 2519 | |
| 2520 | if (!_dbus_string_init (&full_path)) |
| 2521 | goto nomem; |
| 2522 | |
| 2523 | if (!make_full_path (&parser->basedir, content, &full_path)) |
| 2524 | { |
| 2525 | _dbus_string_free (&full_path); |
| 2526 | goto nomem; |
| 2527 | } |
| 2528 | |
| 2529 | if (!_dbus_string_copy_data (&full_path, &s)) |
| 2530 | { |
| 2531 | _dbus_string_free (&full_path); |
| 2532 | goto nomem; |
| 2533 | } |
| 2534 | |
| 2535 | /* _only_ extra session directories can be specified */ |
| 2536 | if (!service_dirs_append_unique_or_free (&parser->service_dirs, s)) |
| 2537 | { |
| 2538 | _dbus_string_free (&full_path); |
| 2539 | dbus_free (s); |
| 2540 | goto nomem; |
| 2541 | } |
| 2542 | |
| 2543 | _dbus_string_free (&full_path); |
| 2544 | } |
| 2545 | break; |
| 2546 | |
| 2547 | case ELEMENT_LIMIT: |
| 2548 | { |
| 2549 | long val; |
| 2550 | |
| 2551 | e->had_content = TRUE; |
| 2552 | |
| 2553 | val = 0; |
| 2554 | if (!_dbus_string_parse_int (content, 0, &val, NULL)) |
| 2555 | { |
| 2556 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2557 | "<limit name=\"%s\"> element has invalid value (could not parse as integer)", |
| 2558 | e->d.limit.name); |
| 2559 | return FALSE; |
| 2560 | } |
| 2561 | |
| 2562 | e->d.limit.value = val; |
| 2563 | |
| 2564 | _dbus_verbose ("Loaded value %ld for limit %s\n", |
| 2565 | e->d.limit.value, |
| 2566 | e->d.limit.name); |
| 2567 | } |
| 2568 | break; |
| 2569 | } |
| 2570 | |
| 2571 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 2572 | return TRUE; |
| 2573 | |
| 2574 | nomem: |
| 2575 | BUS_SET_OOM (error); |
| 2576 | return FALSE; |
| 2577 | } |
| 2578 | |
| 2579 | dbus_bool_t |
| 2580 | bus_config_parser_finished (BusConfigParser *parser, |
| 2581 | DBusError *error) |
| 2582 | { |
| 2583 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 2584 | |
| 2585 | if (parser->stack != NULL) |
| 2586 | { |
| 2587 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2588 | "Element <%s> was not closed in configuration file", |
| 2589 | bus_config_parser_element_type_to_name (top_element_type (parser))); |
| 2590 | |
| 2591 | return FALSE; |
| 2592 | } |
| 2593 | |
| 2594 | if (parser->is_toplevel && parser->listen_on == NULL) |
| 2595 | { |
| 2596 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 2597 | "Configuration file needs one or more <listen> elements giving addresses"); |
| 2598 | return FALSE; |
| 2599 | } |
| 2600 | |
| 2601 | return TRUE; |
| 2602 | } |
| 2603 | |
| 2604 | const char* |
| 2605 | bus_config_parser_get_user (BusConfigParser *parser) |
| 2606 | { |
| 2607 | return parser->user; |
| 2608 | } |
| 2609 | |
| 2610 | const char* |
| 2611 | bus_config_parser_get_type (BusConfigParser *parser) |
| 2612 | { |
| 2613 | return parser->bus_type; |
| 2614 | } |
| 2615 | |
| 2616 | DBusList** |
| 2617 | bus_config_parser_get_addresses (BusConfigParser *parser) |
| 2618 | { |
| 2619 | return &parser->listen_on; |
| 2620 | } |
| 2621 | |
| 2622 | DBusList** |
| 2623 | bus_config_parser_get_mechanisms (BusConfigParser *parser) |
| 2624 | { |
| 2625 | return &parser->mechanisms; |
| 2626 | } |
| 2627 | |
| 2628 | DBusList** |
| 2629 | bus_config_parser_get_service_dirs (BusConfigParser *parser) |
| 2630 | { |
| 2631 | return &parser->service_dirs; |
| 2632 | } |
| 2633 | |
| 2634 | DBusList** |
| 2635 | bus_config_parser_get_conf_dirs (BusConfigParser *parser) |
| 2636 | { |
| 2637 | return &parser->conf_dirs; |
| 2638 | } |
| 2639 | |
| 2640 | dbus_bool_t |
| 2641 | bus_config_parser_get_fork (BusConfigParser *parser) |
| 2642 | { |
| 2643 | return parser->fork; |
| 2644 | } |
| 2645 | |
| 2646 | dbus_bool_t |
| 2647 | bus_config_parser_get_syslog (BusConfigParser *parser) |
| 2648 | { |
| 2649 | return parser->syslog; |
| 2650 | } |
| 2651 | |
| 2652 | dbus_bool_t |
| 2653 | bus_config_parser_get_keep_umask (BusConfigParser *parser) |
| 2654 | { |
| 2655 | return parser->keep_umask; |
| 2656 | } |
| 2657 | |
| 2658 | dbus_bool_t |
| 2659 | bus_config_parser_get_allow_anonymous (BusConfigParser *parser) |
| 2660 | { |
| 2661 | return parser->allow_anonymous; |
| 2662 | } |
| 2663 | |
| 2664 | const char * |
| 2665 | bus_config_parser_get_pidfile (BusConfigParser *parser) |
| 2666 | { |
| 2667 | return parser->pidfile; |
| 2668 | } |
| 2669 | |
| 2670 | const char * |
| 2671 | bus_config_parser_get_servicehelper (BusConfigParser *parser) |
| 2672 | { |
| 2673 | return parser->servicehelper; |
| 2674 | } |
| 2675 | |
| 2676 | BusPolicy* |
| 2677 | bus_config_parser_steal_policy (BusConfigParser *parser) |
| 2678 | { |
| 2679 | BusPolicy *policy; |
| 2680 | |
| 2681 | _dbus_assert (parser->policy != NULL); /* can only steal the policy 1 time */ |
| 2682 | |
| 2683 | policy = parser->policy; |
| 2684 | |
| 2685 | parser->policy = NULL; |
| 2686 | |
| 2687 | return policy; |
| 2688 | } |
| 2689 | |
| 2690 | /* Overwrite any limits that were set in the configuration file */ |
| 2691 | void |
| 2692 | bus_config_parser_get_limits (BusConfigParser *parser, |
| 2693 | BusLimits *limits) |
| 2694 | { |
| 2695 | *limits = parser->limits; |
| 2696 | } |
| 2697 | |
| 2698 | DBusHashTable* |
| 2699 | bus_config_parser_steal_service_context_table (BusConfigParser *parser) |
| 2700 | { |
| 2701 | DBusHashTable *table; |
| 2702 | |
| 2703 | _dbus_assert (parser->service_context_table != NULL); /* can only steal once */ |
| 2704 | |
| 2705 | table = parser->service_context_table; |
| 2706 | |
| 2707 | parser->service_context_table = NULL; |
| 2708 | |
| 2709 | return table; |
| 2710 | } |
| 2711 | |
| 2712 | #ifdef DBUS_BUILD_TESTS |
| 2713 | #include <stdio.h> |
| 2714 | |
| 2715 | typedef enum |
| 2716 | { |
| 2717 | VALID, |
| 2718 | INVALID, |
| 2719 | UNKNOWN |
| 2720 | } Validity; |
| 2721 | |
| 2722 | static dbus_bool_t |
| 2723 | do_load (const DBusString *full_path, |
| 2724 | Validity validity, |
| 2725 | dbus_bool_t oom_possible) |
| 2726 | { |
| 2727 | BusConfigParser *parser; |
| 2728 | DBusError error; |
| 2729 | |
| 2730 | dbus_error_init (&error); |
| 2731 | |
| 2732 | parser = bus_config_load (full_path, TRUE, NULL, &error); |
| 2733 | if (parser == NULL) |
| 2734 | { |
| 2735 | _DBUS_ASSERT_ERROR_IS_SET (&error); |
| 2736 | |
| 2737 | if (oom_possible && |
| 2738 | dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY)) |
| 2739 | { |
| 2740 | _dbus_verbose ("Failed to load valid file due to OOM\n"); |
| 2741 | dbus_error_free (&error); |
| 2742 | return TRUE; |
| 2743 | } |
| 2744 | else if (validity == VALID) |
| 2745 | { |
| 2746 | _dbus_warn ("Failed to load valid file but still had memory: %s\n", |
| 2747 | error.message); |
| 2748 | |
| 2749 | dbus_error_free (&error); |
| 2750 | return FALSE; |
| 2751 | } |
| 2752 | else |
| 2753 | { |
| 2754 | dbus_error_free (&error); |
| 2755 | return TRUE; |
| 2756 | } |
| 2757 | } |
| 2758 | else |
| 2759 | { |
| 2760 | _DBUS_ASSERT_ERROR_IS_CLEAR (&error); |
| 2761 | |
| 2762 | bus_config_parser_unref (parser); |
| 2763 | |
| 2764 | if (validity == INVALID) |
| 2765 | { |
| 2766 | _dbus_warn ("Accepted invalid file\n"); |
| 2767 | return FALSE; |
| 2768 | } |
| 2769 | |
| 2770 | return TRUE; |
| 2771 | } |
| 2772 | } |
| 2773 | |
| 2774 | typedef struct |
| 2775 | { |
| 2776 | const DBusString *full_path; |
| 2777 | Validity validity; |
| 2778 | } LoaderOomData; |
| 2779 | |
| 2780 | static dbus_bool_t |
| 2781 | check_loader_oom_func (void *data) |
| 2782 | { |
| 2783 | LoaderOomData *d = data; |
| 2784 | |
| 2785 | return do_load (d->full_path, d->validity, TRUE); |
| 2786 | } |
| 2787 | |
| 2788 | static dbus_bool_t |
| 2789 | process_test_valid_subdir (const DBusString *test_base_dir, |
| 2790 | const char *subdir, |
| 2791 | Validity validity) |
| 2792 | { |
| 2793 | DBusString test_directory; |
| 2794 | DBusString filename; |
| 2795 | DBusDirIter *dir; |
| 2796 | dbus_bool_t retval; |
| 2797 | DBusError error; |
| 2798 | |
| 2799 | retval = FALSE; |
| 2800 | dir = NULL; |
| 2801 | |
| 2802 | if (!_dbus_string_init (&test_directory)) |
| 2803 | _dbus_assert_not_reached ("didn't allocate test_directory\n"); |
| 2804 | |
| 2805 | _dbus_string_init_const (&filename, subdir); |
| 2806 | |
| 2807 | if (!_dbus_string_copy (test_base_dir, 0, |
| 2808 | &test_directory, 0)) |
| 2809 | _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory"); |
| 2810 | |
| 2811 | if (!_dbus_concat_dir_and_file (&test_directory, &filename)) |
| 2812 | _dbus_assert_not_reached ("couldn't allocate full path"); |
| 2813 | |
| 2814 | _dbus_string_free (&filename); |
| 2815 | if (!_dbus_string_init (&filename)) |
| 2816 | _dbus_assert_not_reached ("didn't allocate filename string\n"); |
| 2817 | |
| 2818 | dbus_error_init (&error); |
| 2819 | dir = _dbus_directory_open (&test_directory, &error); |
| 2820 | if (dir == NULL) |
| 2821 | { |
| 2822 | _dbus_warn ("Could not open %s: %s\n", |
| 2823 | _dbus_string_get_const_data (&test_directory), |
| 2824 | error.message); |
| 2825 | dbus_error_free (&error); |
| 2826 | goto failed; |
| 2827 | } |
| 2828 | |
| 2829 | if (validity == VALID) |
| 2830 | printf ("Testing valid files:\n"); |
| 2831 | else if (validity == INVALID) |
| 2832 | printf ("Testing invalid files:\n"); |
| 2833 | else |
| 2834 | printf ("Testing unknown files:\n"); |
| 2835 | |
| 2836 | next: |
| 2837 | while (_dbus_directory_get_next_file (dir, &filename, &error)) |
| 2838 | { |
| 2839 | DBusString full_path; |
| 2840 | LoaderOomData d; |
| 2841 | |
| 2842 | if (!_dbus_string_init (&full_path)) |
| 2843 | _dbus_assert_not_reached ("couldn't init string"); |
| 2844 | |
| 2845 | if (!_dbus_string_copy (&test_directory, 0, &full_path, 0)) |
| 2846 | _dbus_assert_not_reached ("couldn't copy dir to full_path"); |
| 2847 | |
| 2848 | if (!_dbus_concat_dir_and_file (&full_path, &filename)) |
| 2849 | _dbus_assert_not_reached ("couldn't concat file to dir"); |
| 2850 | |
| 2851 | if (!_dbus_string_ends_with_c_str (&full_path, ".conf")) |
| 2852 | { |
| 2853 | _dbus_verbose ("Skipping non-.conf file %s\n", |
| 2854 | _dbus_string_get_const_data (&filename)); |
| 2855 | _dbus_string_free (&full_path); |
| 2856 | goto next; |
| 2857 | } |
| 2858 | |
| 2859 | printf (" %s\n", _dbus_string_get_const_data (&filename)); |
| 2860 | |
| 2861 | _dbus_verbose (" expecting %s\n", |
| 2862 | validity == VALID ? "valid" : |
| 2863 | (validity == INVALID ? "invalid" : |
| 2864 | (validity == UNKNOWN ? "unknown" : "???"))); |
| 2865 | |
| 2866 | d.full_path = &full_path; |
| 2867 | d.validity = validity; |
| 2868 | |
| 2869 | /* FIXME hackaround for an expat problem, see |
| 2870 | * https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124747 |
| 2871 | * http://freedesktop.org/pipermail/dbus/2004-May/001153.html |
| 2872 | */ |
| 2873 | /* if (!_dbus_test_oom_handling ("config-loader", check_loader_oom_func, &d)) */ |
| 2874 | if (!check_loader_oom_func (&d)) |
| 2875 | _dbus_assert_not_reached ("test failed"); |
| 2876 | |
| 2877 | _dbus_string_free (&full_path); |
| 2878 | } |
| 2879 | |
| 2880 | if (dbus_error_is_set (&error)) |
| 2881 | { |
| 2882 | _dbus_warn ("Could not get next file in %s: %s\n", |
| 2883 | _dbus_string_get_const_data (&test_directory), |
| 2884 | error.message); |
| 2885 | dbus_error_free (&error); |
| 2886 | goto failed; |
| 2887 | } |
| 2888 | |
| 2889 | retval = TRUE; |
| 2890 | |
| 2891 | failed: |
| 2892 | |
| 2893 | if (dir) |
| 2894 | _dbus_directory_close (dir); |
| 2895 | _dbus_string_free (&test_directory); |
| 2896 | _dbus_string_free (&filename); |
| 2897 | |
| 2898 | return retval; |
| 2899 | } |
| 2900 | |
| 2901 | static dbus_bool_t |
| 2902 | bools_equal (dbus_bool_t a, |
| 2903 | dbus_bool_t b) |
| 2904 | { |
| 2905 | return a ? b : !b; |
| 2906 | } |
| 2907 | |
| 2908 | static dbus_bool_t |
| 2909 | strings_equal_or_both_null (const char *a, |
| 2910 | const char *b) |
| 2911 | { |
| 2912 | if (a == NULL || b == NULL) |
| 2913 | return a == b; |
| 2914 | else |
| 2915 | return !strcmp (a, b); |
| 2916 | } |
| 2917 | |
| 2918 | static dbus_bool_t |
| 2919 | elements_equal (const Element *a, |
| 2920 | const Element *b) |
| 2921 | { |
| 2922 | if (a->type != b->type) |
| 2923 | return FALSE; |
| 2924 | |
| 2925 | if (!bools_equal (a->had_content, b->had_content)) |
| 2926 | return FALSE; |
| 2927 | |
| 2928 | switch (a->type) |
| 2929 | { |
| 2930 | |
| 2931 | case ELEMENT_INCLUDE: |
| 2932 | if (!bools_equal (a->d.include.ignore_missing, |
| 2933 | b->d.include.ignore_missing)) |
| 2934 | return FALSE; |
| 2935 | break; |
| 2936 | |
| 2937 | case ELEMENT_POLICY: |
| 2938 | if (a->d.policy.type != b->d.policy.type) |
| 2939 | return FALSE; |
| 2940 | if (a->d.policy.gid_uid_or_at_console != b->d.policy.gid_uid_or_at_console) |
| 2941 | return FALSE; |
| 2942 | break; |
| 2943 | |
| 2944 | case ELEMENT_LIMIT: |
| 2945 | if (strcmp (a->d.limit.name, b->d.limit.name)) |
| 2946 | return FALSE; |
| 2947 | if (a->d.limit.value != b->d.limit.value) |
| 2948 | return FALSE; |
| 2949 | break; |
| 2950 | |
| 2951 | default: |
| 2952 | /* do nothing */ |
| 2953 | break; |
| 2954 | } |
| 2955 | |
| 2956 | return TRUE; |
| 2957 | |
| 2958 | } |
| 2959 | |
| 2960 | static dbus_bool_t |
| 2961 | lists_of_elements_equal (DBusList *a, |
| 2962 | DBusList *b) |
| 2963 | { |
| 2964 | DBusList *ia; |
| 2965 | DBusList *ib; |
| 2966 | |
| 2967 | ia = a; |
| 2968 | ib = b; |
| 2969 | |
| 2970 | while (ia != NULL && ib != NULL) |
| 2971 | { |
| 2972 | if (elements_equal (ia->data, ib->data)) |
| 2973 | return FALSE; |
| 2974 | ia = _dbus_list_get_next_link (&a, ia); |
| 2975 | ib = _dbus_list_get_next_link (&b, ib); |
| 2976 | } |
| 2977 | |
| 2978 | return ia == NULL && ib == NULL; |
| 2979 | } |
| 2980 | |
| 2981 | static dbus_bool_t |
| 2982 | lists_of_c_strings_equal (DBusList *a, |
| 2983 | DBusList *b) |
| 2984 | { |
| 2985 | DBusList *ia; |
| 2986 | DBusList *ib; |
| 2987 | |
| 2988 | ia = a; |
| 2989 | ib = b; |
| 2990 | |
| 2991 | while (ia != NULL && ib != NULL) |
| 2992 | { |
| 2993 | if (strcmp (ia->data, ib->data)) |
| 2994 | return FALSE; |
| 2995 | ia = _dbus_list_get_next_link (&a, ia); |
| 2996 | ib = _dbus_list_get_next_link (&b, ib); |
| 2997 | } |
| 2998 | |
| 2999 | return ia == NULL && ib == NULL; |
| 3000 | } |
| 3001 | |
| 3002 | static dbus_bool_t |
| 3003 | limits_equal (const BusLimits *a, |
| 3004 | const BusLimits *b) |
| 3005 | { |
| 3006 | return |
| 3007 | (a->max_incoming_bytes == b->max_incoming_bytes |
| 3008 | || a->max_incoming_unix_fds == b->max_incoming_unix_fds |
| 3009 | || a->max_outgoing_bytes == b->max_outgoing_bytes |
| 3010 | || a->max_outgoing_unix_fds == b->max_outgoing_unix_fds |
| 3011 | || a->max_message_size == b->max_message_size |
| 3012 | || a->max_message_unix_fds == b->max_message_unix_fds |
| 3013 | || a->activation_timeout == b->activation_timeout |
| 3014 | || a->auth_timeout == b->auth_timeout |
| 3015 | || a->max_completed_connections == b->max_completed_connections |
| 3016 | || a->max_incomplete_connections == b->max_incomplete_connections |
| 3017 | || a->max_connections_per_user == b->max_connections_per_user |
| 3018 | || a->max_pending_activations == b->max_pending_activations |
| 3019 | || a->max_services_per_connection == b->max_services_per_connection |
| 3020 | || a->max_match_rules_per_connection == b->max_match_rules_per_connection |
| 3021 | || a->max_replies_per_connection == b->max_replies_per_connection |
| 3022 | || a->reply_timeout == b->reply_timeout); |
| 3023 | } |
| 3024 | |
| 3025 | static dbus_bool_t |
| 3026 | config_parsers_equal (const BusConfigParser *a, |
| 3027 | const BusConfigParser *b) |
| 3028 | { |
| 3029 | if (!_dbus_string_equal (&a->basedir, &b->basedir)) |
| 3030 | return FALSE; |
| 3031 | |
| 3032 | if (!lists_of_elements_equal (a->stack, b->stack)) |
| 3033 | return FALSE; |
| 3034 | |
| 3035 | if (!strings_equal_or_both_null (a->user, b->user)) |
| 3036 | return FALSE; |
| 3037 | |
| 3038 | if (!lists_of_c_strings_equal (a->listen_on, b->listen_on)) |
| 3039 | return FALSE; |
| 3040 | |
| 3041 | if (!lists_of_c_strings_equal (a->mechanisms, b->mechanisms)) |
| 3042 | return FALSE; |
| 3043 | |
| 3044 | if (!lists_of_c_strings_equal (a->service_dirs, b->service_dirs)) |
| 3045 | return FALSE; |
| 3046 | |
| 3047 | /* FIXME: compare policy */ |
| 3048 | |
| 3049 | /* FIXME: compare service selinux ID table */ |
| 3050 | |
| 3051 | if (! limits_equal (&a->limits, &b->limits)) |
| 3052 | return FALSE; |
| 3053 | |
| 3054 | if (!strings_equal_or_both_null (a->pidfile, b->pidfile)) |
| 3055 | return FALSE; |
| 3056 | |
| 3057 | if (! bools_equal (a->fork, b->fork)) |
| 3058 | return FALSE; |
| 3059 | |
| 3060 | if (! bools_equal (a->keep_umask, b->keep_umask)) |
| 3061 | return FALSE; |
| 3062 | |
| 3063 | if (! bools_equal (a->is_toplevel, b->is_toplevel)) |
| 3064 | return FALSE; |
| 3065 | |
| 3066 | return TRUE; |
| 3067 | } |
| 3068 | |
| 3069 | static dbus_bool_t |
| 3070 | all_are_equiv (const DBusString *target_directory) |
| 3071 | { |
| 3072 | DBusString filename; |
| 3073 | DBusDirIter *dir; |
| 3074 | BusConfigParser *first_parser; |
| 3075 | BusConfigParser *parser; |
| 3076 | DBusError error; |
| 3077 | dbus_bool_t equal; |
| 3078 | dbus_bool_t retval; |
| 3079 | |
| 3080 | dir = NULL; |
| 3081 | first_parser = NULL; |
| 3082 | parser = NULL; |
| 3083 | retval = FALSE; |
| 3084 | |
| 3085 | if (!_dbus_string_init (&filename)) |
| 3086 | _dbus_assert_not_reached ("didn't allocate filename string"); |
| 3087 | |
| 3088 | dbus_error_init (&error); |
| 3089 | dir = _dbus_directory_open (target_directory, &error); |
| 3090 | if (dir == NULL) |
| 3091 | { |
| 3092 | _dbus_warn ("Could not open %s: %s\n", |
| 3093 | _dbus_string_get_const_data (target_directory), |
| 3094 | error.message); |
| 3095 | dbus_error_free (&error); |
| 3096 | goto finished; |
| 3097 | } |
| 3098 | |
| 3099 | printf ("Comparing equivalent files:\n"); |
| 3100 | |
| 3101 | next: |
| 3102 | while (_dbus_directory_get_next_file (dir, &filename, &error)) |
| 3103 | { |
| 3104 | DBusString full_path; |
| 3105 | |
| 3106 | if (!_dbus_string_init (&full_path)) |
| 3107 | _dbus_assert_not_reached ("couldn't init string"); |
| 3108 | |
| 3109 | if (!_dbus_string_copy (target_directory, 0, &full_path, 0)) |
| 3110 | _dbus_assert_not_reached ("couldn't copy dir to full_path"); |
| 3111 | |
| 3112 | if (!_dbus_concat_dir_and_file (&full_path, &filename)) |
| 3113 | _dbus_assert_not_reached ("couldn't concat file to dir"); |
| 3114 | |
| 3115 | if (!_dbus_string_ends_with_c_str (&full_path, ".conf")) |
| 3116 | { |
| 3117 | _dbus_verbose ("Skipping non-.conf file %s\n", |
| 3118 | _dbus_string_get_const_data (&filename)); |
| 3119 | _dbus_string_free (&full_path); |
| 3120 | goto next; |
| 3121 | } |
| 3122 | |
| 3123 | printf (" %s\n", _dbus_string_get_const_data (&filename)); |
| 3124 | |
| 3125 | parser = bus_config_load (&full_path, TRUE, NULL, &error); |
| 3126 | |
| 3127 | if (parser == NULL) |
| 3128 | { |
| 3129 | _dbus_warn ("Could not load file %s: %s\n", |
| 3130 | _dbus_string_get_const_data (&full_path), |
| 3131 | error.message); |
| 3132 | _dbus_string_free (&full_path); |
| 3133 | dbus_error_free (&error); |
| 3134 | goto finished; |
| 3135 | } |
| 3136 | else if (first_parser == NULL) |
| 3137 | { |
| 3138 | _dbus_string_free (&full_path); |
| 3139 | first_parser = parser; |
| 3140 | } |
| 3141 | else |
| 3142 | { |
| 3143 | _dbus_string_free (&full_path); |
| 3144 | equal = config_parsers_equal (first_parser, parser); |
| 3145 | bus_config_parser_unref (parser); |
| 3146 | if (! equal) |
| 3147 | goto finished; |
| 3148 | } |
| 3149 | } |
| 3150 | |
| 3151 | retval = TRUE; |
| 3152 | |
| 3153 | finished: |
| 3154 | _dbus_string_free (&filename); |
| 3155 | if (first_parser) |
| 3156 | bus_config_parser_unref (first_parser); |
| 3157 | if (dir) |
| 3158 | _dbus_directory_close (dir); |
| 3159 | |
| 3160 | return retval; |
| 3161 | |
| 3162 | } |
| 3163 | |
| 3164 | static dbus_bool_t |
| 3165 | process_test_equiv_subdir (const DBusString *test_base_dir, |
| 3166 | const char *subdir) |
| 3167 | { |
| 3168 | DBusString test_directory; |
| 3169 | DBusString filename; |
| 3170 | DBusDirIter *dir; |
| 3171 | DBusError error; |
| 3172 | dbus_bool_t equal; |
| 3173 | dbus_bool_t retval; |
| 3174 | |
| 3175 | dir = NULL; |
| 3176 | retval = FALSE; |
| 3177 | |
| 3178 | if (!_dbus_string_init (&test_directory)) |
| 3179 | _dbus_assert_not_reached ("didn't allocate test_directory"); |
| 3180 | |
| 3181 | _dbus_string_init_const (&filename, subdir); |
| 3182 | |
| 3183 | if (!_dbus_string_copy (test_base_dir, 0, |
| 3184 | &test_directory, 0)) |
| 3185 | _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory"); |
| 3186 | |
| 3187 | if (!_dbus_concat_dir_and_file (&test_directory, &filename)) |
| 3188 | _dbus_assert_not_reached ("couldn't allocate full path"); |
| 3189 | |
| 3190 | _dbus_string_free (&filename); |
| 3191 | if (!_dbus_string_init (&filename)) |
| 3192 | _dbus_assert_not_reached ("didn't allocate filename string"); |
| 3193 | |
| 3194 | dbus_error_init (&error); |
| 3195 | dir = _dbus_directory_open (&test_directory, &error); |
| 3196 | if (dir == NULL) |
| 3197 | { |
| 3198 | _dbus_warn ("Could not open %s: %s\n", |
| 3199 | _dbus_string_get_const_data (&test_directory), |
| 3200 | error.message); |
| 3201 | dbus_error_free (&error); |
| 3202 | goto finished; |
| 3203 | } |
| 3204 | |
| 3205 | while (_dbus_directory_get_next_file (dir, &filename, &error)) |
| 3206 | { |
| 3207 | DBusString full_path; |
| 3208 | |
| 3209 | /* Skip CVS's magic directories! */ |
| 3210 | if (_dbus_string_equal_c_str (&filename, "CVS")) |
| 3211 | continue; |
| 3212 | |
| 3213 | if (!_dbus_string_init (&full_path)) |
| 3214 | _dbus_assert_not_reached ("couldn't init string"); |
| 3215 | |
| 3216 | if (!_dbus_string_copy (&test_directory, 0, &full_path, 0)) |
| 3217 | _dbus_assert_not_reached ("couldn't copy dir to full_path"); |
| 3218 | |
| 3219 | if (!_dbus_concat_dir_and_file (&full_path, &filename)) |
| 3220 | _dbus_assert_not_reached ("couldn't concat file to dir"); |
| 3221 | |
| 3222 | equal = all_are_equiv (&full_path); |
| 3223 | _dbus_string_free (&full_path); |
| 3224 | |
| 3225 | if (!equal) |
| 3226 | goto finished; |
| 3227 | } |
| 3228 | |
| 3229 | retval = TRUE; |
| 3230 | |
| 3231 | finished: |
| 3232 | _dbus_string_free (&test_directory); |
| 3233 | _dbus_string_free (&filename); |
| 3234 | if (dir) |
| 3235 | _dbus_directory_close (dir); |
| 3236 | |
| 3237 | return retval; |
| 3238 | |
| 3239 | } |
| 3240 | |
| 3241 | static const char *test_session_service_dir_matches[] = |
| 3242 | { |
| 3243 | #ifdef DBUS_UNIX |
| 3244 | "/testusr/testlocal/testshare/dbus-1/services", |
| 3245 | "/testusr/testshare/dbus-1/services", |
| 3246 | #endif |
| 3247 | DBUS_DATADIR"/dbus-1/services", |
| 3248 | #ifdef DBUS_UNIX |
| 3249 | "/testhome/foo/.testlocal/testshare/dbus-1/services", |
| 3250 | #endif |
| 3251 | #ifdef DBUS_WIN |
| 3252 | NULL, |
| 3253 | #endif |
| 3254 | NULL |
| 3255 | }; |
| 3256 | |
| 3257 | static dbus_bool_t |
| 3258 | test_default_session_servicedirs (void) |
| 3259 | { |
| 3260 | DBusList *dirs; |
| 3261 | DBusList *link; |
| 3262 | DBusString progs; |
| 3263 | const char *common_progs; |
| 3264 | int i; |
| 3265 | |
| 3266 | /* On Unix we don't actually use this variable, but it's easier to handle the |
| 3267 | * deallocation if we always allocate it, whether needed or not */ |
| 3268 | if (!_dbus_string_init (&progs)) |
| 3269 | _dbus_assert_not_reached ("OOM allocating progs"); |
| 3270 | |
| 3271 | common_progs = _dbus_getenv ("CommonProgramFiles"); |
| 3272 | #ifndef DBUS_UNIX |
| 3273 | if (common_progs) |
| 3274 | { |
| 3275 | if (!_dbus_string_append (&progs, common_progs)) |
| 3276 | { |
| 3277 | _dbus_string_free (&progs); |
| 3278 | return FALSE; |
| 3279 | } |
| 3280 | |
| 3281 | if (!_dbus_string_append (&progs, "/dbus-1/services")) |
| 3282 | { |
| 3283 | _dbus_string_free (&progs); |
| 3284 | return FALSE; |
| 3285 | } |
| 3286 | test_session_service_dir_matches[1] = _dbus_string_get_const_data(&progs); |
| 3287 | } |
| 3288 | #endif |
| 3289 | dirs = NULL; |
| 3290 | |
| 3291 | printf ("Testing retrieving the default session service directories\n"); |
| 3292 | if (!_dbus_get_standard_session_servicedirs (&dirs)) |
| 3293 | _dbus_assert_not_reached ("couldn't get stardard dirs"); |
| 3294 | |
| 3295 | /* make sure our defaults end with share/dbus-1/service */ |
| 3296 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 3297 | { |
| 3298 | DBusString path; |
| 3299 | |
| 3300 | printf (" default service dir: %s\n", (char *)link->data); |
| 3301 | _dbus_string_init_const (&path, (char *)link->data); |
| 3302 | if (!_dbus_string_ends_with_c_str (&path, "dbus-1/services")) |
| 3303 | { |
| 3304 | printf ("error with default session service directories\n"); |
| 3305 | dbus_free (link->data); |
| 3306 | _dbus_list_free_link (link); |
| 3307 | _dbus_string_free (&progs); |
| 3308 | return FALSE; |
| 3309 | } |
| 3310 | |
| 3311 | dbus_free (link->data); |
| 3312 | _dbus_list_free_link (link); |
| 3313 | } |
| 3314 | |
| 3315 | #ifdef DBUS_UNIX |
| 3316 | if (!_dbus_setenv ("XDG_DATA_HOME", "/testhome/foo/.testlocal/testshare")) |
| 3317 | _dbus_assert_not_reached ("couldn't setenv XDG_DATA_HOME"); |
| 3318 | |
| 3319 | if (!_dbus_setenv ("XDG_DATA_DIRS", ":/testusr/testlocal/testshare: :/testusr/testshare:")) |
| 3320 | _dbus_assert_not_reached ("couldn't setenv XDG_DATA_DIRS"); |
| 3321 | #endif |
| 3322 | if (!_dbus_get_standard_session_servicedirs (&dirs)) |
| 3323 | _dbus_assert_not_reached ("couldn't get stardard dirs"); |
| 3324 | |
| 3325 | /* make sure we read and parse the env variable correctly */ |
| 3326 | i = 0; |
| 3327 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 3328 | { |
| 3329 | printf (" test service dir: %s\n", (char *)link->data); |
| 3330 | if (test_session_service_dir_matches[i] == NULL) |
| 3331 | { |
| 3332 | printf ("more directories parsed than in match set\n"); |
| 3333 | dbus_free (link->data); |
| 3334 | _dbus_list_free_link (link); |
| 3335 | _dbus_string_free (&progs); |
| 3336 | return FALSE; |
| 3337 | } |
| 3338 | |
| 3339 | if (strcmp (test_session_service_dir_matches[i], |
| 3340 | (char *)link->data) != 0) |
| 3341 | { |
| 3342 | printf ("%s directory does not match %s in the match set\n", |
| 3343 | (char *)link->data, |
| 3344 | test_session_service_dir_matches[i]); |
| 3345 | dbus_free (link->data); |
| 3346 | _dbus_list_free_link (link); |
| 3347 | _dbus_string_free (&progs); |
| 3348 | return FALSE; |
| 3349 | } |
| 3350 | |
| 3351 | ++i; |
| 3352 | |
| 3353 | dbus_free (link->data); |
| 3354 | _dbus_list_free_link (link); |
| 3355 | } |
| 3356 | |
| 3357 | if (test_session_service_dir_matches[i] != NULL) |
| 3358 | { |
| 3359 | printf ("extra data %s in the match set was not matched\n", |
| 3360 | test_session_service_dir_matches[i]); |
| 3361 | |
| 3362 | _dbus_string_free (&progs); |
| 3363 | return FALSE; |
| 3364 | } |
| 3365 | |
| 3366 | _dbus_string_free (&progs); |
| 3367 | return TRUE; |
| 3368 | } |
| 3369 | |
| 3370 | static const char *test_system_service_dir_matches[] = |
| 3371 | { |
| 3372 | #ifdef DBUS_UNIX |
| 3373 | "/testusr/testlocal/testshare/dbus-1/system-services", |
| 3374 | "/testusr/testshare/dbus-1/system-services", |
| 3375 | #endif |
| 3376 | DBUS_DATADIR"/dbus-1/system-services", |
| 3377 | #ifdef DBUS_WIN |
| 3378 | NULL, |
| 3379 | #endif |
| 3380 | NULL |
| 3381 | }; |
| 3382 | |
| 3383 | static dbus_bool_t |
| 3384 | test_default_system_servicedirs (void) |
| 3385 | { |
| 3386 | DBusList *dirs; |
| 3387 | DBusList *link; |
| 3388 | DBusString progs; |
| 3389 | const char *common_progs; |
| 3390 | int i; |
| 3391 | |
| 3392 | /* On Unix we don't actually use this variable, but it's easier to handle the |
| 3393 | * deallocation if we always allocate it, whether needed or not */ |
| 3394 | if (!_dbus_string_init (&progs)) |
| 3395 | _dbus_assert_not_reached ("OOM allocating progs"); |
| 3396 | |
| 3397 | common_progs = _dbus_getenv ("CommonProgramFiles"); |
| 3398 | #ifndef DBUS_UNIX |
| 3399 | if (common_progs) |
| 3400 | { |
| 3401 | if (!_dbus_string_append (&progs, common_progs)) |
| 3402 | { |
| 3403 | _dbus_string_free (&progs); |
| 3404 | return FALSE; |
| 3405 | } |
| 3406 | |
| 3407 | if (!_dbus_string_append (&progs, "/dbus-1/system-services")) |
| 3408 | { |
| 3409 | _dbus_string_free (&progs); |
| 3410 | return FALSE; |
| 3411 | } |
| 3412 | test_system_service_dir_matches[1] = _dbus_string_get_const_data(&progs); |
| 3413 | } |
| 3414 | #endif |
| 3415 | dirs = NULL; |
| 3416 | |
| 3417 | printf ("Testing retrieving the default system service directories\n"); |
| 3418 | if (!_dbus_get_standard_system_servicedirs (&dirs)) |
| 3419 | _dbus_assert_not_reached ("couldn't get stardard dirs"); |
| 3420 | |
| 3421 | /* make sure our defaults end with share/dbus-1/system-service */ |
| 3422 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 3423 | { |
| 3424 | DBusString path; |
| 3425 | |
| 3426 | printf (" default service dir: %s\n", (char *)link->data); |
| 3427 | _dbus_string_init_const (&path, (char *)link->data); |
| 3428 | if (!_dbus_string_ends_with_c_str (&path, "dbus-1/system-services")) |
| 3429 | { |
| 3430 | printf ("error with default system service directories\n"); |
| 3431 | dbus_free (link->data); |
| 3432 | _dbus_list_free_link (link); |
| 3433 | _dbus_string_free (&progs); |
| 3434 | return FALSE; |
| 3435 | } |
| 3436 | |
| 3437 | dbus_free (link->data); |
| 3438 | _dbus_list_free_link (link); |
| 3439 | } |
| 3440 | |
| 3441 | #ifdef DBUS_UNIX |
| 3442 | if (!_dbus_setenv ("XDG_DATA_HOME", "/testhome/foo/.testlocal/testshare")) |
| 3443 | _dbus_assert_not_reached ("couldn't setenv XDG_DATA_HOME"); |
| 3444 | |
| 3445 | if (!_dbus_setenv ("XDG_DATA_DIRS", ":/testusr/testlocal/testshare: :/testusr/testshare:")) |
| 3446 | _dbus_assert_not_reached ("couldn't setenv XDG_DATA_DIRS"); |
| 3447 | #endif |
| 3448 | if (!_dbus_get_standard_system_servicedirs (&dirs)) |
| 3449 | _dbus_assert_not_reached ("couldn't get stardard dirs"); |
| 3450 | |
| 3451 | /* make sure we read and parse the env variable correctly */ |
| 3452 | i = 0; |
| 3453 | while ((link = _dbus_list_pop_first_link (&dirs))) |
| 3454 | { |
| 3455 | printf (" test service dir: %s\n", (char *)link->data); |
| 3456 | if (test_system_service_dir_matches[i] == NULL) |
| 3457 | { |
| 3458 | printf ("more directories parsed than in match set\n"); |
| 3459 | dbus_free (link->data); |
| 3460 | _dbus_list_free_link (link); |
| 3461 | _dbus_string_free (&progs); |
| 3462 | return FALSE; |
| 3463 | } |
| 3464 | |
| 3465 | if (strcmp (test_system_service_dir_matches[i], |
| 3466 | (char *)link->data) != 0) |
| 3467 | { |
| 3468 | printf ("%s directory does not match %s in the match set\n", |
| 3469 | (char *)link->data, |
| 3470 | test_system_service_dir_matches[i]); |
| 3471 | dbus_free (link->data); |
| 3472 | _dbus_list_free_link (link); |
| 3473 | _dbus_string_free (&progs); |
| 3474 | return FALSE; |
| 3475 | } |
| 3476 | |
| 3477 | ++i; |
| 3478 | |
| 3479 | dbus_free (link->data); |
| 3480 | _dbus_list_free_link (link); |
| 3481 | } |
| 3482 | |
| 3483 | if (test_system_service_dir_matches[i] != NULL) |
| 3484 | { |
| 3485 | printf ("extra data %s in the match set was not matched\n", |
| 3486 | test_system_service_dir_matches[i]); |
| 3487 | |
| 3488 | _dbus_string_free (&progs); |
| 3489 | return FALSE; |
| 3490 | } |
| 3491 | |
| 3492 | _dbus_string_free (&progs); |
| 3493 | return TRUE; |
| 3494 | } |
| 3495 | |
| 3496 | dbus_bool_t |
| 3497 | bus_config_parser_test (const DBusString *test_data_dir) |
| 3498 | { |
| 3499 | if (test_data_dir == NULL || |
| 3500 | _dbus_string_get_length (test_data_dir) == 0) |
| 3501 | { |
| 3502 | printf ("No test data\n"); |
| 3503 | return TRUE; |
| 3504 | } |
| 3505 | |
| 3506 | if (!test_default_session_servicedirs()) |
| 3507 | return FALSE; |
| 3508 | |
| 3509 | #ifdef DBUS_WIN |
| 3510 | printf("default system service dir skipped\n"); |
| 3511 | #else |
| 3512 | if (!test_default_system_servicedirs()) |
| 3513 | return FALSE; |
| 3514 | #endif |
| 3515 | |
| 3516 | if (!process_test_valid_subdir (test_data_dir, "valid-config-files", VALID)) |
| 3517 | return FALSE; |
| 3518 | |
| 3519 | if (!process_test_valid_subdir (test_data_dir, "invalid-config-files", INVALID)) |
| 3520 | return FALSE; |
| 3521 | |
| 3522 | if (!process_test_equiv_subdir (test_data_dir, "equiv-config-files")) |
| 3523 | return FALSE; |
| 3524 | |
| 3525 | return TRUE; |
| 3526 | } |
| 3527 | |
| 3528 | #endif /* DBUS_BUILD_TESTS */ |