Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| 2 | /* driver.c Bus client (driver) |
| 3 | * |
| 4 | * Copyright (C) 2003 CodeFactory AB |
| 5 | * Copyright (C) 2003, 2004, 2005 Red Hat, Inc. |
| 6 | * |
| 7 | * Licensed under the Academic Free License version 2.1 |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <config.h> |
| 26 | #include "activation.h" |
| 27 | #include "connection.h" |
| 28 | #include "driver.h" |
| 29 | #include "dispatch.h" |
| 30 | #include "services.h" |
| 31 | #include "selinux.h" |
| 32 | #include "signals.h" |
| 33 | #include "utils.h" |
| 34 | #include <dbus/dbus-string.h> |
| 35 | #include <dbus/dbus-internals.h> |
| 36 | #include <dbus/dbus-message.h> |
| 37 | #include <dbus/dbus-marshal-recursive.h> |
| 38 | #include <string.h> |
| 39 | |
| 40 | static dbus_bool_t bus_driver_send_welcome_message (DBusConnection *connection, |
| 41 | DBusMessage *hello_message, |
| 42 | BusTransaction *transaction, |
| 43 | DBusError *error); |
| 44 | |
| 45 | dbus_bool_t |
| 46 | bus_driver_send_service_owner_changed (const char *service_name, |
| 47 | const char *old_owner, |
| 48 | const char *new_owner, |
| 49 | BusTransaction *transaction, |
| 50 | DBusError *error) |
| 51 | { |
| 52 | DBusMessage *message; |
| 53 | dbus_bool_t retval; |
| 54 | const char *null_service; |
| 55 | |
| 56 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 57 | |
| 58 | null_service = ""; |
| 59 | _dbus_verbose ("sending name owner changed: %s [%s -> %s]\n", |
| 60 | service_name, |
| 61 | old_owner ? old_owner : null_service, |
| 62 | new_owner ? new_owner : null_service); |
| 63 | |
| 64 | message = dbus_message_new_signal (DBUS_PATH_DBUS, |
| 65 | DBUS_INTERFACE_DBUS, |
| 66 | "NameOwnerChanged"); |
| 67 | |
| 68 | if (message == NULL) |
| 69 | { |
| 70 | BUS_SET_OOM (error); |
| 71 | return FALSE; |
| 72 | } |
| 73 | |
| 74 | if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS)) |
| 75 | goto oom; |
| 76 | |
| 77 | if (!dbus_message_append_args (message, |
| 78 | DBUS_TYPE_STRING, &service_name, |
| 79 | DBUS_TYPE_STRING, old_owner ? &old_owner : &null_service, |
| 80 | DBUS_TYPE_STRING, new_owner ? &new_owner : &null_service, |
| 81 | DBUS_TYPE_INVALID)) |
| 82 | goto oom; |
| 83 | |
| 84 | _dbus_assert (dbus_message_has_signature (message, "sss")); |
| 85 | |
| 86 | retval = bus_dispatch_matches (transaction, NULL, NULL, message, error); |
| 87 | dbus_message_unref (message); |
| 88 | |
| 89 | return retval; |
| 90 | |
| 91 | oom: |
| 92 | dbus_message_unref (message); |
| 93 | BUS_SET_OOM (error); |
| 94 | return FALSE; |
| 95 | } |
| 96 | |
| 97 | dbus_bool_t |
| 98 | bus_driver_send_service_lost (DBusConnection *connection, |
| 99 | const char *service_name, |
| 100 | BusTransaction *transaction, |
| 101 | DBusError *error) |
| 102 | { |
| 103 | DBusMessage *message; |
| 104 | |
| 105 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 106 | |
| 107 | message = dbus_message_new_signal (DBUS_PATH_DBUS, |
| 108 | DBUS_INTERFACE_DBUS, |
| 109 | "NameLost"); |
| 110 | |
| 111 | if (message == NULL) |
| 112 | { |
| 113 | BUS_SET_OOM (error); |
| 114 | return FALSE; |
| 115 | } |
| 116 | |
| 117 | if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) || |
| 118 | !dbus_message_append_args (message, |
| 119 | DBUS_TYPE_STRING, &service_name, |
| 120 | DBUS_TYPE_INVALID)) |
| 121 | { |
| 122 | dbus_message_unref (message); |
| 123 | BUS_SET_OOM (error); |
| 124 | return FALSE; |
| 125 | } |
| 126 | |
| 127 | if (!bus_transaction_send_from_driver (transaction, connection, message)) |
| 128 | { |
| 129 | dbus_message_unref (message); |
| 130 | BUS_SET_OOM (error); |
| 131 | return FALSE; |
| 132 | } |
| 133 | else |
| 134 | { |
| 135 | dbus_message_unref (message); |
| 136 | return TRUE; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | dbus_bool_t |
| 141 | bus_driver_send_service_acquired (DBusConnection *connection, |
| 142 | const char *service_name, |
| 143 | BusTransaction *transaction, |
| 144 | DBusError *error) |
| 145 | { |
| 146 | DBusMessage *message; |
| 147 | |
| 148 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 149 | |
| 150 | message = dbus_message_new_signal (DBUS_PATH_DBUS, |
| 151 | DBUS_INTERFACE_DBUS, |
| 152 | "NameAcquired"); |
| 153 | |
| 154 | if (message == NULL) |
| 155 | { |
| 156 | BUS_SET_OOM (error); |
| 157 | return FALSE; |
| 158 | } |
| 159 | |
| 160 | if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) || |
| 161 | !dbus_message_append_args (message, |
| 162 | DBUS_TYPE_STRING, &service_name, |
| 163 | DBUS_TYPE_INVALID)) |
| 164 | { |
| 165 | dbus_message_unref (message); |
| 166 | BUS_SET_OOM (error); |
| 167 | return FALSE; |
| 168 | } |
| 169 | |
| 170 | if (!bus_transaction_send_from_driver (transaction, connection, message)) |
| 171 | { |
| 172 | dbus_message_unref (message); |
| 173 | BUS_SET_OOM (error); |
| 174 | return FALSE; |
| 175 | } |
| 176 | else |
| 177 | { |
| 178 | dbus_message_unref (message); |
| 179 | return TRUE; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | static dbus_bool_t |
| 184 | create_unique_client_name (BusRegistry *registry, |
| 185 | DBusString *str) |
| 186 | { |
| 187 | /* We never want to use the same unique client name twice, because |
| 188 | * we want to guarantee that if you send a message to a given unique |
| 189 | * name, you always get the same application. So we use two numbers |
| 190 | * for INT_MAX * INT_MAX combinations, should be pretty safe against |
| 191 | * wraparound. |
| 192 | */ |
| 193 | /* FIXME these should be in BusRegistry rather than static vars */ |
| 194 | static int next_major_number = 0; |
| 195 | static int next_minor_number = 0; |
| 196 | int len; |
| 197 | |
| 198 | len = _dbus_string_get_length (str); |
| 199 | |
| 200 | while (TRUE) |
| 201 | { |
| 202 | /* start out with 1-0, go to 1-1, 1-2, 1-3, |
| 203 | * up to 1-MAXINT, then 2-0, 2-1, etc. |
| 204 | */ |
| 205 | if (next_minor_number <= 0) |
| 206 | { |
| 207 | next_major_number += 1; |
| 208 | next_minor_number = 0; |
| 209 | if (next_major_number <= 0) |
| 210 | _dbus_assert_not_reached ("INT_MAX * INT_MAX clients were added"); |
| 211 | } |
| 212 | |
| 213 | _dbus_assert (next_major_number > 0); |
| 214 | _dbus_assert (next_minor_number >= 0); |
| 215 | |
| 216 | /* appname:MAJOR-MINOR */ |
| 217 | |
| 218 | if (!_dbus_string_append (str, ":")) |
| 219 | return FALSE; |
| 220 | |
| 221 | if (!_dbus_string_append_int (str, next_major_number)) |
| 222 | return FALSE; |
| 223 | |
| 224 | if (!_dbus_string_append (str, ".")) |
| 225 | return FALSE; |
| 226 | |
| 227 | if (!_dbus_string_append_int (str, next_minor_number)) |
| 228 | return FALSE; |
| 229 | |
| 230 | next_minor_number += 1; |
| 231 | |
| 232 | /* Check if a client with the name exists */ |
| 233 | if (bus_registry_lookup (registry, str) == NULL) |
| 234 | break; |
| 235 | |
| 236 | /* drop the number again, try the next one. */ |
| 237 | _dbus_string_set_length (str, len); |
| 238 | } |
| 239 | |
| 240 | return TRUE; |
| 241 | } |
| 242 | |
| 243 | static dbus_bool_t |
| 244 | bus_driver_handle_hello (DBusConnection *connection, |
| 245 | BusTransaction *transaction, |
| 246 | DBusMessage *message, |
| 247 | DBusError *error) |
| 248 | { |
| 249 | DBusString unique_name; |
| 250 | BusService *service; |
| 251 | dbus_bool_t retval; |
| 252 | BusRegistry *registry; |
| 253 | BusConnections *connections; |
| 254 | |
| 255 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 256 | |
| 257 | if (bus_connection_is_active (connection)) |
| 258 | { |
| 259 | /* We already handled an Hello message for this connection. */ |
| 260 | dbus_set_error (error, DBUS_ERROR_FAILED, |
| 261 | "Already handled an Hello message"); |
| 262 | return FALSE; |
| 263 | } |
| 264 | |
| 265 | /* Note that when these limits are exceeded we don't disconnect the |
| 266 | * connection; we just sort of leave it hanging there until it times |
| 267 | * out or disconnects itself or is dropped due to the max number of |
| 268 | * incomplete connections. It's even OK if the connection wants to |
| 269 | * retry the hello message, we support that. |
| 270 | */ |
| 271 | connections = bus_connection_get_connections (connection); |
| 272 | if (!bus_connections_check_limits (connections, connection, |
| 273 | error)) |
| 274 | { |
| 275 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 276 | return FALSE; |
| 277 | } |
| 278 | |
| 279 | if (!_dbus_string_init (&unique_name)) |
| 280 | { |
| 281 | BUS_SET_OOM (error); |
| 282 | return FALSE; |
| 283 | } |
| 284 | |
| 285 | retval = FALSE; |
| 286 | |
| 287 | registry = bus_connection_get_registry (connection); |
| 288 | |
| 289 | if (!create_unique_client_name (registry, &unique_name)) |
| 290 | { |
| 291 | BUS_SET_OOM (error); |
| 292 | goto out_0; |
| 293 | } |
| 294 | |
| 295 | if (!bus_connection_complete (connection, &unique_name, error)) |
| 296 | { |
| 297 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 298 | goto out_0; |
| 299 | } |
| 300 | |
| 301 | if (!dbus_message_set_sender (message, |
| 302 | bus_connection_get_name (connection))) |
| 303 | { |
| 304 | BUS_SET_OOM (error); |
| 305 | goto out_0; |
| 306 | } |
| 307 | |
| 308 | if (!bus_driver_send_welcome_message (connection, message, transaction, error)) |
| 309 | goto out_0; |
| 310 | |
| 311 | /* Create the service */ |
| 312 | service = bus_registry_ensure (registry, |
| 313 | &unique_name, connection, 0, transaction, error); |
| 314 | if (service == NULL) |
| 315 | goto out_0; |
| 316 | |
| 317 | _dbus_assert (bus_connection_is_active (connection)); |
| 318 | retval = TRUE; |
| 319 | |
| 320 | out_0: |
| 321 | _dbus_string_free (&unique_name); |
| 322 | return retval; |
| 323 | } |
| 324 | |
| 325 | static dbus_bool_t |
| 326 | bus_driver_send_welcome_message (DBusConnection *connection, |
| 327 | DBusMessage *hello_message, |
| 328 | BusTransaction *transaction, |
| 329 | DBusError *error) |
| 330 | { |
| 331 | DBusMessage *welcome; |
| 332 | const char *name; |
| 333 | |
| 334 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 335 | |
| 336 | name = bus_connection_get_name (connection); |
| 337 | _dbus_assert (name != NULL); |
| 338 | |
| 339 | welcome = dbus_message_new_method_return (hello_message); |
| 340 | if (welcome == NULL) |
| 341 | { |
| 342 | BUS_SET_OOM (error); |
| 343 | return FALSE; |
| 344 | } |
| 345 | |
| 346 | if (!dbus_message_append_args (welcome, |
| 347 | DBUS_TYPE_STRING, &name, |
| 348 | DBUS_TYPE_INVALID)) |
| 349 | { |
| 350 | dbus_message_unref (welcome); |
| 351 | BUS_SET_OOM (error); |
| 352 | return FALSE; |
| 353 | } |
| 354 | |
| 355 | _dbus_assert (dbus_message_has_signature (welcome, DBUS_TYPE_STRING_AS_STRING)); |
| 356 | |
| 357 | if (!bus_transaction_send_from_driver (transaction, connection, welcome)) |
| 358 | { |
| 359 | dbus_message_unref (welcome); |
| 360 | BUS_SET_OOM (error); |
| 361 | return FALSE; |
| 362 | } |
| 363 | else |
| 364 | { |
| 365 | dbus_message_unref (welcome); |
| 366 | return TRUE; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | static dbus_bool_t |
| 371 | bus_driver_handle_list_services (DBusConnection *connection, |
| 372 | BusTransaction *transaction, |
| 373 | DBusMessage *message, |
| 374 | DBusError *error) |
| 375 | { |
| 376 | DBusMessage *reply; |
| 377 | int len; |
| 378 | char **services; |
| 379 | BusRegistry *registry; |
| 380 | int i; |
| 381 | DBusMessageIter iter; |
| 382 | DBusMessageIter sub; |
| 383 | |
| 384 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 385 | |
| 386 | registry = bus_connection_get_registry (connection); |
| 387 | |
| 388 | reply = dbus_message_new_method_return (message); |
| 389 | if (reply == NULL) |
| 390 | { |
| 391 | BUS_SET_OOM (error); |
| 392 | return FALSE; |
| 393 | } |
| 394 | |
| 395 | if (!bus_registry_list_services (registry, &services, &len)) |
| 396 | { |
| 397 | dbus_message_unref (reply); |
| 398 | BUS_SET_OOM (error); |
| 399 | return FALSE; |
| 400 | } |
| 401 | |
| 402 | dbus_message_iter_init_append (reply, &iter); |
| 403 | |
| 404 | if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, |
| 405 | DBUS_TYPE_STRING_AS_STRING, |
| 406 | &sub)) |
| 407 | { |
| 408 | dbus_free_string_array (services); |
| 409 | dbus_message_unref (reply); |
| 410 | BUS_SET_OOM (error); |
| 411 | return FALSE; |
| 412 | } |
| 413 | |
| 414 | { |
| 415 | /* Include the bus driver in the list */ |
| 416 | const char *v_STRING = DBUS_SERVICE_DBUS; |
| 417 | if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING, |
| 418 | &v_STRING)) |
| 419 | { |
| 420 | dbus_free_string_array (services); |
| 421 | dbus_message_unref (reply); |
| 422 | BUS_SET_OOM (error); |
| 423 | return FALSE; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | i = 0; |
| 428 | while (i < len) |
| 429 | { |
| 430 | if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING, |
| 431 | &services[i])) |
| 432 | { |
| 433 | dbus_free_string_array (services); |
| 434 | dbus_message_unref (reply); |
| 435 | BUS_SET_OOM (error); |
| 436 | return FALSE; |
| 437 | } |
| 438 | ++i; |
| 439 | } |
| 440 | |
| 441 | dbus_free_string_array (services); |
| 442 | |
| 443 | if (!dbus_message_iter_close_container (&iter, &sub)) |
| 444 | { |
| 445 | dbus_message_unref (reply); |
| 446 | BUS_SET_OOM (error); |
| 447 | return FALSE; |
| 448 | } |
| 449 | |
| 450 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 451 | { |
| 452 | dbus_message_unref (reply); |
| 453 | BUS_SET_OOM (error); |
| 454 | return FALSE; |
| 455 | } |
| 456 | else |
| 457 | { |
| 458 | dbus_message_unref (reply); |
| 459 | return TRUE; |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | static dbus_bool_t |
| 464 | bus_driver_handle_list_activatable_services (DBusConnection *connection, |
| 465 | BusTransaction *transaction, |
| 466 | DBusMessage *message, |
| 467 | DBusError *error) |
| 468 | { |
| 469 | DBusMessage *reply; |
| 470 | int len; |
| 471 | char **services; |
| 472 | BusActivation *activation; |
| 473 | int i; |
| 474 | DBusMessageIter iter; |
| 475 | DBusMessageIter sub; |
| 476 | |
| 477 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 478 | |
| 479 | activation = bus_connection_get_activation (connection); |
| 480 | |
| 481 | reply = dbus_message_new_method_return (message); |
| 482 | if (reply == NULL) |
| 483 | { |
| 484 | BUS_SET_OOM (error); |
| 485 | return FALSE; |
| 486 | } |
| 487 | |
| 488 | if (!bus_activation_list_services (activation, &services, &len)) |
| 489 | { |
| 490 | dbus_message_unref (reply); |
| 491 | BUS_SET_OOM (error); |
| 492 | return FALSE; |
| 493 | } |
| 494 | |
| 495 | dbus_message_iter_init_append (reply, &iter); |
| 496 | |
| 497 | if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, |
| 498 | DBUS_TYPE_STRING_AS_STRING, |
| 499 | &sub)) |
| 500 | { |
| 501 | dbus_free_string_array (services); |
| 502 | dbus_message_unref (reply); |
| 503 | BUS_SET_OOM (error); |
| 504 | return FALSE; |
| 505 | } |
| 506 | |
| 507 | { |
| 508 | /* Include the bus driver in the list */ |
| 509 | const char *v_STRING = DBUS_SERVICE_DBUS; |
| 510 | if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING, |
| 511 | &v_STRING)) |
| 512 | { |
| 513 | dbus_free_string_array (services); |
| 514 | dbus_message_unref (reply); |
| 515 | BUS_SET_OOM (error); |
| 516 | return FALSE; |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | i = 0; |
| 521 | while (i < len) |
| 522 | { |
| 523 | if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING, |
| 524 | &services[i])) |
| 525 | { |
| 526 | dbus_free_string_array (services); |
| 527 | dbus_message_unref (reply); |
| 528 | BUS_SET_OOM (error); |
| 529 | return FALSE; |
| 530 | } |
| 531 | ++i; |
| 532 | } |
| 533 | |
| 534 | dbus_free_string_array (services); |
| 535 | |
| 536 | if (!dbus_message_iter_close_container (&iter, &sub)) |
| 537 | { |
| 538 | dbus_message_unref (reply); |
| 539 | BUS_SET_OOM (error); |
| 540 | return FALSE; |
| 541 | } |
| 542 | |
| 543 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 544 | { |
| 545 | dbus_message_unref (reply); |
| 546 | BUS_SET_OOM (error); |
| 547 | return FALSE; |
| 548 | } |
| 549 | else |
| 550 | { |
| 551 | dbus_message_unref (reply); |
| 552 | return TRUE; |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | static dbus_bool_t |
| 557 | bus_driver_handle_acquire_service (DBusConnection *connection, |
| 558 | BusTransaction *transaction, |
| 559 | DBusMessage *message, |
| 560 | DBusError *error) |
| 561 | { |
| 562 | DBusMessage *reply; |
| 563 | DBusString service_name; |
| 564 | const char *name; |
| 565 | dbus_uint32_t service_reply; |
| 566 | dbus_uint32_t flags; |
| 567 | dbus_bool_t retval; |
| 568 | BusRegistry *registry; |
| 569 | |
| 570 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 571 | |
| 572 | registry = bus_connection_get_registry (connection); |
| 573 | |
| 574 | if (!dbus_message_get_args (message, error, |
| 575 | DBUS_TYPE_STRING, &name, |
| 576 | DBUS_TYPE_UINT32, &flags, |
| 577 | DBUS_TYPE_INVALID)) |
| 578 | return FALSE; |
| 579 | |
| 580 | _dbus_verbose ("Trying to own name %s with flags 0x%x\n", name, flags); |
| 581 | |
| 582 | retval = FALSE; |
| 583 | reply = NULL; |
| 584 | |
| 585 | _dbus_string_init_const (&service_name, name); |
| 586 | |
| 587 | if (!bus_registry_acquire_service (registry, connection, |
| 588 | &service_name, flags, |
| 589 | &service_reply, transaction, |
| 590 | error)) |
| 591 | goto out; |
| 592 | |
| 593 | reply = dbus_message_new_method_return (message); |
| 594 | if (reply == NULL) |
| 595 | { |
| 596 | BUS_SET_OOM (error); |
| 597 | goto out; |
| 598 | } |
| 599 | |
| 600 | if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, &service_reply, DBUS_TYPE_INVALID)) |
| 601 | { |
| 602 | BUS_SET_OOM (error); |
| 603 | goto out; |
| 604 | } |
| 605 | |
| 606 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 607 | { |
| 608 | BUS_SET_OOM (error); |
| 609 | goto out; |
| 610 | } |
| 611 | |
| 612 | retval = TRUE; |
| 613 | |
| 614 | out: |
| 615 | if (reply) |
| 616 | dbus_message_unref (reply); |
| 617 | return retval; |
| 618 | } |
| 619 | |
| 620 | static dbus_bool_t |
| 621 | bus_driver_handle_release_service (DBusConnection *connection, |
| 622 | BusTransaction *transaction, |
| 623 | DBusMessage *message, |
| 624 | DBusError *error) |
| 625 | { |
| 626 | DBusMessage *reply; |
| 627 | DBusString service_name; |
| 628 | const char *name; |
| 629 | dbus_uint32_t service_reply; |
| 630 | dbus_bool_t retval; |
| 631 | BusRegistry *registry; |
| 632 | |
| 633 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 634 | |
| 635 | registry = bus_connection_get_registry (connection); |
| 636 | |
| 637 | if (!dbus_message_get_args (message, error, |
| 638 | DBUS_TYPE_STRING, &name, |
| 639 | DBUS_TYPE_INVALID)) |
| 640 | return FALSE; |
| 641 | |
| 642 | _dbus_verbose ("Trying to release name %s\n", name); |
| 643 | |
| 644 | retval = FALSE; |
| 645 | reply = NULL; |
| 646 | |
| 647 | _dbus_string_init_const (&service_name, name); |
| 648 | |
| 649 | if (!bus_registry_release_service (registry, connection, |
| 650 | &service_name, &service_reply, |
| 651 | transaction, error)) |
| 652 | goto out; |
| 653 | |
| 654 | reply = dbus_message_new_method_return (message); |
| 655 | if (reply == NULL) |
| 656 | { |
| 657 | BUS_SET_OOM (error); |
| 658 | goto out; |
| 659 | } |
| 660 | |
| 661 | if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, &service_reply, DBUS_TYPE_INVALID)) |
| 662 | { |
| 663 | BUS_SET_OOM (error); |
| 664 | goto out; |
| 665 | } |
| 666 | |
| 667 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 668 | { |
| 669 | BUS_SET_OOM (error); |
| 670 | goto out; |
| 671 | } |
| 672 | |
| 673 | retval = TRUE; |
| 674 | |
| 675 | out: |
| 676 | if (reply) |
| 677 | dbus_message_unref (reply); |
| 678 | return retval; |
| 679 | } |
| 680 | |
| 681 | static dbus_bool_t |
| 682 | bus_driver_handle_service_exists (DBusConnection *connection, |
| 683 | BusTransaction *transaction, |
| 684 | DBusMessage *message, |
| 685 | DBusError *error) |
| 686 | { |
| 687 | DBusMessage *reply; |
| 688 | DBusString service_name; |
| 689 | BusService *service; |
| 690 | dbus_bool_t service_exists; |
| 691 | const char *name; |
| 692 | dbus_bool_t retval; |
| 693 | BusRegistry *registry; |
| 694 | |
| 695 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 696 | |
| 697 | registry = bus_connection_get_registry (connection); |
| 698 | |
| 699 | if (!dbus_message_get_args (message, error, |
| 700 | DBUS_TYPE_STRING, &name, |
| 701 | DBUS_TYPE_INVALID)) |
| 702 | return FALSE; |
| 703 | |
| 704 | retval = FALSE; |
| 705 | |
| 706 | if (strcmp (name, DBUS_SERVICE_DBUS) == 0) |
| 707 | { |
| 708 | service_exists = TRUE; |
| 709 | } |
| 710 | else |
| 711 | { |
| 712 | _dbus_string_init_const (&service_name, name); |
| 713 | service = bus_registry_lookup (registry, &service_name); |
| 714 | service_exists = service != NULL; |
| 715 | } |
| 716 | |
| 717 | reply = dbus_message_new_method_return (message); |
| 718 | if (reply == NULL) |
| 719 | { |
| 720 | BUS_SET_OOM (error); |
| 721 | goto out; |
| 722 | } |
| 723 | |
| 724 | if (!dbus_message_append_args (reply, |
| 725 | DBUS_TYPE_BOOLEAN, &service_exists, |
| 726 | 0)) |
| 727 | { |
| 728 | BUS_SET_OOM (error); |
| 729 | goto out; |
| 730 | } |
| 731 | |
| 732 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 733 | { |
| 734 | BUS_SET_OOM (error); |
| 735 | goto out; |
| 736 | } |
| 737 | |
| 738 | retval = TRUE; |
| 739 | |
| 740 | out: |
| 741 | if (reply) |
| 742 | dbus_message_unref (reply); |
| 743 | |
| 744 | return retval; |
| 745 | } |
| 746 | |
| 747 | static dbus_bool_t |
| 748 | bus_driver_handle_activate_service (DBusConnection *connection, |
| 749 | BusTransaction *transaction, |
| 750 | DBusMessage *message, |
| 751 | DBusError *error) |
| 752 | { |
| 753 | dbus_uint32_t flags; |
| 754 | const char *name; |
| 755 | dbus_bool_t retval; |
| 756 | BusActivation *activation; |
| 757 | |
| 758 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 759 | |
| 760 | activation = bus_connection_get_activation (connection); |
| 761 | |
| 762 | if (!dbus_message_get_args (message, error, |
| 763 | DBUS_TYPE_STRING, &name, |
| 764 | DBUS_TYPE_UINT32, &flags, |
| 765 | DBUS_TYPE_INVALID)) |
| 766 | { |
| 767 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 768 | _dbus_verbose ("No memory to get arguments to StartServiceByName\n"); |
| 769 | return FALSE; |
| 770 | } |
| 771 | |
| 772 | retval = FALSE; |
| 773 | |
| 774 | if (!bus_activation_activate_service (activation, connection, transaction, FALSE, |
| 775 | message, name, error)) |
| 776 | { |
| 777 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 778 | _dbus_verbose ("bus_activation_activate_service() failed\n"); |
| 779 | goto out; |
| 780 | } |
| 781 | |
| 782 | retval = TRUE; |
| 783 | |
| 784 | out: |
| 785 | return retval; |
| 786 | } |
| 787 | |
| 788 | static dbus_bool_t |
| 789 | send_ack_reply (DBusConnection *connection, |
| 790 | BusTransaction *transaction, |
| 791 | DBusMessage *message, |
| 792 | DBusError *error) |
| 793 | { |
| 794 | DBusMessage *reply; |
| 795 | |
| 796 | if (dbus_message_get_no_reply (message)) |
| 797 | return TRUE; |
| 798 | |
| 799 | reply = dbus_message_new_method_return (message); |
| 800 | if (reply == NULL) |
| 801 | { |
| 802 | BUS_SET_OOM (error); |
| 803 | return FALSE; |
| 804 | } |
| 805 | |
| 806 | if (!bus_transaction_send_from_driver (transaction, connection, reply)) |
| 807 | { |
| 808 | BUS_SET_OOM (error); |
| 809 | dbus_message_unref (reply); |
| 810 | return FALSE; |
| 811 | } |
| 812 | |
| 813 | dbus_message_unref (reply); |
| 814 | |
| 815 | return TRUE; |
| 816 | } |
| 817 | |
| 818 | static dbus_bool_t |
| 819 | bus_driver_handle_update_activation_environment (DBusConnection *connection, |
| 820 | BusTransaction *transaction, |
| 821 | DBusMessage *message, |
| 822 | DBusError *error) |
| 823 | { |
| 824 | dbus_bool_t retval; |
| 825 | BusActivation *activation; |
| 826 | DBusMessageIter iter; |
| 827 | DBusMessageIter dict_iter; |
| 828 | DBusMessageIter dict_entry_iter; |
| 829 | int msg_type; |
| 830 | int array_type; |
| 831 | int key_type; |
| 832 | DBusList *keys, *key_link; |
| 833 | DBusList *values, *value_link; |
| 834 | |
| 835 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 836 | |
| 837 | activation = bus_connection_get_activation (connection); |
| 838 | |
| 839 | dbus_message_iter_init (message, &iter); |
| 840 | |
| 841 | /* The message signature has already been checked for us, |
| 842 | * so let's just assert it's right. |
| 843 | */ |
| 844 | msg_type = dbus_message_iter_get_arg_type (&iter); |
| 845 | |
| 846 | _dbus_assert (msg_type == DBUS_TYPE_ARRAY); |
| 847 | |
| 848 | dbus_message_iter_recurse (&iter, &dict_iter); |
| 849 | |
| 850 | retval = FALSE; |
| 851 | |
| 852 | /* Then loop through the sent dictionary, add the location of |
| 853 | * the environment keys and values to lists. The result will |
| 854 | * be in reverse order, so we don't have to constantly search |
| 855 | * for the end of the list in a loop. |
| 856 | */ |
| 857 | keys = NULL; |
| 858 | values = NULL; |
| 859 | while ((array_type = dbus_message_iter_get_arg_type (&dict_iter)) == DBUS_TYPE_DICT_ENTRY) |
| 860 | { |
| 861 | dbus_message_iter_recurse (&dict_iter, &dict_entry_iter); |
| 862 | |
| 863 | while ((key_type = dbus_message_iter_get_arg_type (&dict_entry_iter)) == DBUS_TYPE_STRING) |
| 864 | { |
| 865 | char *key; |
| 866 | char *value; |
| 867 | int value_type; |
| 868 | |
| 869 | dbus_message_iter_get_basic (&dict_entry_iter, &key); |
| 870 | dbus_message_iter_next (&dict_entry_iter); |
| 871 | |
| 872 | value_type = dbus_message_iter_get_arg_type (&dict_entry_iter); |
| 873 | |
| 874 | if (value_type != DBUS_TYPE_STRING) |
| 875 | break; |
| 876 | |
| 877 | dbus_message_iter_get_basic (&dict_entry_iter, &value); |
| 878 | |
| 879 | if (!_dbus_list_append (&keys, key)) |
| 880 | { |
| 881 | BUS_SET_OOM (error); |
| 882 | break; |
| 883 | } |
| 884 | |
| 885 | if (!_dbus_list_append (&values, value)) |
| 886 | { |
| 887 | BUS_SET_OOM (error); |
| 888 | break; |
| 889 | } |
| 890 | |
| 891 | dbus_message_iter_next (&dict_entry_iter); |
| 892 | } |
| 893 | |
| 894 | if (key_type != DBUS_TYPE_INVALID) |
| 895 | break; |
| 896 | |
| 897 | dbus_message_iter_next (&dict_iter); |
| 898 | } |
| 899 | |
| 900 | if (array_type != DBUS_TYPE_INVALID) |
| 901 | goto out; |
| 902 | |
| 903 | _dbus_assert (_dbus_list_get_length (&keys) == _dbus_list_get_length (&values)); |
| 904 | |
| 905 | key_link = keys; |
| 906 | value_link = values; |
| 907 | while (key_link != NULL) |
| 908 | { |
| 909 | const char *key; |
| 910 | const char *value; |
| 911 | |
| 912 | key = key_link->data; |
| 913 | value = value_link->data; |
| 914 | |
| 915 | if (!bus_activation_set_environment_variable (activation, |
| 916 | key, value, error)) |
| 917 | { |
| 918 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 919 | _dbus_verbose ("bus_activation_set_environment_variable() failed\n"); |
| 920 | break; |
| 921 | } |
| 922 | key_link = _dbus_list_get_next_link (&keys, key_link); |
| 923 | value_link = _dbus_list_get_next_link (&values, value_link); |
| 924 | } |
| 925 | |
| 926 | /* FIXME: We can fail early having set only some of the environment variables, |
| 927 | * (because of OOM failure). It's sort of hard to fix and it doesn't really |
| 928 | * matter, so we're punting for now. |
| 929 | */ |
| 930 | if (key_link != NULL) |
| 931 | goto out; |
| 932 | |
| 933 | if (!send_ack_reply (connection, transaction, |
| 934 | message, error)) |
| 935 | goto out; |
| 936 | |
| 937 | retval = TRUE; |
| 938 | |
| 939 | out: |
| 940 | _dbus_list_clear (&keys); |
| 941 | _dbus_list_clear (&values); |
| 942 | return retval; |
| 943 | } |
| 944 | |
| 945 | static dbus_bool_t |
| 946 | bus_driver_handle_add_match (DBusConnection *connection, |
| 947 | BusTransaction *transaction, |
| 948 | DBusMessage *message, |
| 949 | DBusError *error) |
| 950 | { |
| 951 | BusMatchRule *rule; |
| 952 | const char *text; |
| 953 | DBusString str; |
| 954 | BusMatchmaker *matchmaker; |
| 955 | |
| 956 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 957 | |
| 958 | text = NULL; |
| 959 | rule = NULL; |
| 960 | |
| 961 | if (bus_connection_get_n_match_rules (connection) >= |
| 962 | bus_context_get_max_match_rules_per_connection (bus_transaction_get_context (transaction))) |
| 963 | { |
| 964 | dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED, |
| 965 | "Connection \"%s\" is not allowed to add more match rules " |
| 966 | "(increase limits in configuration file if required)", |
| 967 | bus_connection_is_active (connection) ? |
| 968 | bus_connection_get_name (connection) : |
| 969 | "(inactive)"); |
| 970 | goto failed; |
| 971 | } |
| 972 | |
| 973 | if (!dbus_message_get_args (message, error, |
| 974 | DBUS_TYPE_STRING, &text, |
| 975 | DBUS_TYPE_INVALID)) |
| 976 | { |
| 977 | _dbus_verbose ("No memory to get arguments to AddMatch\n"); |
| 978 | goto failed; |
| 979 | } |
| 980 | |
| 981 | _dbus_string_init_const (&str, text); |
| 982 | |
| 983 | rule = bus_match_rule_parse (connection, &str, error); |
| 984 | if (rule == NULL) |
| 985 | goto failed; |
| 986 | |
| 987 | matchmaker = bus_connection_get_matchmaker (connection); |
| 988 | |
| 989 | if (!bus_matchmaker_add_rule (matchmaker, rule)) |
| 990 | { |
| 991 | BUS_SET_OOM (error); |
| 992 | goto failed; |
| 993 | } |
| 994 | |
| 995 | if (!send_ack_reply (connection, transaction, |
| 996 | message, error)) |
| 997 | { |
| 998 | bus_matchmaker_remove_rule (matchmaker, rule); |
| 999 | goto failed; |
| 1000 | } |
| 1001 | |
| 1002 | bus_match_rule_unref (rule); |
| 1003 | |
| 1004 | return TRUE; |
| 1005 | |
| 1006 | failed: |
| 1007 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1008 | if (rule) |
| 1009 | bus_match_rule_unref (rule); |
| 1010 | return FALSE; |
| 1011 | } |
| 1012 | |
| 1013 | static dbus_bool_t |
| 1014 | bus_driver_handle_remove_match (DBusConnection *connection, |
| 1015 | BusTransaction *transaction, |
| 1016 | DBusMessage *message, |
| 1017 | DBusError *error) |
| 1018 | { |
| 1019 | BusMatchRule *rule; |
| 1020 | const char *text; |
| 1021 | DBusString str; |
| 1022 | BusMatchmaker *matchmaker; |
| 1023 | |
| 1024 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1025 | |
| 1026 | text = NULL; |
| 1027 | rule = NULL; |
| 1028 | |
| 1029 | if (!dbus_message_get_args (message, error, |
| 1030 | DBUS_TYPE_STRING, &text, |
| 1031 | DBUS_TYPE_INVALID)) |
| 1032 | { |
| 1033 | _dbus_verbose ("No memory to get arguments to RemoveMatch\n"); |
| 1034 | goto failed; |
| 1035 | } |
| 1036 | |
| 1037 | _dbus_string_init_const (&str, text); |
| 1038 | |
| 1039 | rule = bus_match_rule_parse (connection, &str, error); |
| 1040 | if (rule == NULL) |
| 1041 | goto failed; |
| 1042 | |
| 1043 | /* Send the ack before we remove the rule, since the ack is undone |
| 1044 | * on transaction cancel, but rule removal isn't. |
| 1045 | */ |
| 1046 | if (!send_ack_reply (connection, transaction, |
| 1047 | message, error)) |
| 1048 | goto failed; |
| 1049 | |
| 1050 | matchmaker = bus_connection_get_matchmaker (connection); |
| 1051 | |
| 1052 | if (!bus_matchmaker_remove_rule_by_value (matchmaker, rule, error)) |
| 1053 | goto failed; |
| 1054 | |
| 1055 | bus_match_rule_unref (rule); |
| 1056 | |
| 1057 | return TRUE; |
| 1058 | |
| 1059 | failed: |
| 1060 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1061 | if (rule) |
| 1062 | bus_match_rule_unref (rule); |
| 1063 | return FALSE; |
| 1064 | } |
| 1065 | |
| 1066 | static dbus_bool_t |
| 1067 | bus_driver_handle_get_service_owner (DBusConnection *connection, |
| 1068 | BusTransaction *transaction, |
| 1069 | DBusMessage *message, |
| 1070 | DBusError *error) |
| 1071 | { |
| 1072 | const char *text; |
| 1073 | const char *base_name; |
| 1074 | DBusString str; |
| 1075 | BusRegistry *registry; |
| 1076 | BusService *service; |
| 1077 | DBusMessage *reply; |
| 1078 | |
| 1079 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1080 | |
| 1081 | registry = bus_connection_get_registry (connection); |
| 1082 | |
| 1083 | text = NULL; |
| 1084 | reply = NULL; |
| 1085 | |
| 1086 | if (! dbus_message_get_args (message, error, |
| 1087 | DBUS_TYPE_STRING, &text, |
| 1088 | DBUS_TYPE_INVALID)) |
| 1089 | goto failed; |
| 1090 | |
| 1091 | _dbus_string_init_const (&str, text); |
| 1092 | service = bus_registry_lookup (registry, &str); |
| 1093 | if (service == NULL && |
| 1094 | _dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS)) |
| 1095 | { |
| 1096 | /* ORG_FREEDESKTOP_DBUS owns itself */ |
| 1097 | base_name = DBUS_SERVICE_DBUS; |
| 1098 | } |
| 1099 | else if (service == NULL) |
| 1100 | { |
| 1101 | dbus_set_error (error, |
| 1102 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1103 | "Could not get owner of name '%s': no such name", text); |
| 1104 | goto failed; |
| 1105 | } |
| 1106 | else |
| 1107 | { |
| 1108 | base_name = bus_connection_get_name (bus_service_get_primary_owners_connection (service)); |
| 1109 | if (base_name == NULL) |
| 1110 | { |
| 1111 | /* FIXME - how is this error possible? */ |
| 1112 | dbus_set_error (error, |
| 1113 | DBUS_ERROR_FAILED, |
| 1114 | "Could not determine unique name for '%s'", text); |
| 1115 | goto failed; |
| 1116 | } |
| 1117 | _dbus_assert (*base_name == ':'); |
| 1118 | } |
| 1119 | |
| 1120 | _dbus_assert (base_name != NULL); |
| 1121 | |
| 1122 | reply = dbus_message_new_method_return (message); |
| 1123 | if (reply == NULL) |
| 1124 | goto oom; |
| 1125 | |
| 1126 | if (! dbus_message_append_args (reply, |
| 1127 | DBUS_TYPE_STRING, &base_name, |
| 1128 | DBUS_TYPE_INVALID)) |
| 1129 | goto oom; |
| 1130 | |
| 1131 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1132 | goto oom; |
| 1133 | |
| 1134 | dbus_message_unref (reply); |
| 1135 | |
| 1136 | return TRUE; |
| 1137 | |
| 1138 | oom: |
| 1139 | BUS_SET_OOM (error); |
| 1140 | |
| 1141 | failed: |
| 1142 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1143 | if (reply) |
| 1144 | dbus_message_unref (reply); |
| 1145 | return FALSE; |
| 1146 | } |
| 1147 | |
| 1148 | static dbus_bool_t |
| 1149 | bus_driver_handle_list_queued_owners (DBusConnection *connection, |
| 1150 | BusTransaction *transaction, |
| 1151 | DBusMessage *message, |
| 1152 | DBusError *error) |
| 1153 | { |
| 1154 | const char *text; |
| 1155 | DBusList *base_names; |
| 1156 | DBusList *link; |
| 1157 | DBusString str; |
| 1158 | BusRegistry *registry; |
| 1159 | BusService *service; |
| 1160 | DBusMessage *reply; |
| 1161 | DBusMessageIter iter, array_iter; |
| 1162 | char *dbus_service_name = DBUS_SERVICE_DBUS; |
| 1163 | |
| 1164 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1165 | |
| 1166 | registry = bus_connection_get_registry (connection); |
| 1167 | |
| 1168 | base_names = NULL; |
| 1169 | text = NULL; |
| 1170 | reply = NULL; |
| 1171 | |
| 1172 | if (! dbus_message_get_args (message, error, |
| 1173 | DBUS_TYPE_STRING, &text, |
| 1174 | DBUS_TYPE_INVALID)) |
| 1175 | goto failed; |
| 1176 | |
| 1177 | _dbus_string_init_const (&str, text); |
| 1178 | service = bus_registry_lookup (registry, &str); |
| 1179 | if (service == NULL && |
| 1180 | _dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS)) |
| 1181 | { |
| 1182 | /* ORG_FREEDESKTOP_DBUS owns itself */ |
| 1183 | if (! _dbus_list_append (&base_names, dbus_service_name)) |
| 1184 | goto oom; |
| 1185 | } |
| 1186 | else if (service == NULL) |
| 1187 | { |
| 1188 | dbus_set_error (error, |
| 1189 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1190 | "Could not get owners of name '%s': no such name", text); |
| 1191 | goto failed; |
| 1192 | } |
| 1193 | else |
| 1194 | { |
| 1195 | if (!bus_service_list_queued_owners (service, |
| 1196 | &base_names, |
| 1197 | error)) |
| 1198 | goto failed; |
| 1199 | } |
| 1200 | |
| 1201 | _dbus_assert (base_names != NULL); |
| 1202 | |
| 1203 | reply = dbus_message_new_method_return (message); |
| 1204 | if (reply == NULL) |
| 1205 | goto oom; |
| 1206 | |
| 1207 | dbus_message_iter_init_append (reply, &iter); |
| 1208 | if (!dbus_message_iter_open_container (&iter, |
| 1209 | DBUS_TYPE_ARRAY, |
| 1210 | DBUS_TYPE_STRING_AS_STRING, |
| 1211 | &array_iter)) |
| 1212 | goto oom; |
| 1213 | |
| 1214 | link = _dbus_list_get_first_link (&base_names); |
| 1215 | while (link != NULL) |
| 1216 | { |
| 1217 | char *uname; |
| 1218 | |
| 1219 | _dbus_assert (link->data != NULL); |
| 1220 | uname = (char *)link->data; |
| 1221 | |
| 1222 | if (!dbus_message_iter_append_basic (&array_iter, |
| 1223 | DBUS_TYPE_STRING, |
| 1224 | &uname)) |
| 1225 | goto oom; |
| 1226 | |
| 1227 | link = _dbus_list_get_next_link (&base_names, link); |
| 1228 | } |
| 1229 | |
| 1230 | if (! dbus_message_iter_close_container (&iter, &array_iter)) |
| 1231 | goto oom; |
| 1232 | |
| 1233 | |
| 1234 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1235 | goto oom; |
| 1236 | |
| 1237 | dbus_message_unref (reply); |
| 1238 | |
| 1239 | return TRUE; |
| 1240 | |
| 1241 | oom: |
| 1242 | BUS_SET_OOM (error); |
| 1243 | |
| 1244 | failed: |
| 1245 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1246 | if (reply) |
| 1247 | dbus_message_unref (reply); |
| 1248 | |
| 1249 | if (base_names) |
| 1250 | _dbus_list_clear (&base_names); |
| 1251 | |
| 1252 | return FALSE; |
| 1253 | } |
| 1254 | |
| 1255 | static dbus_bool_t |
| 1256 | bus_driver_handle_get_connection_unix_user (DBusConnection *connection, |
| 1257 | BusTransaction *transaction, |
| 1258 | DBusMessage *message, |
| 1259 | DBusError *error) |
| 1260 | { |
| 1261 | const char *service; |
| 1262 | DBusString str; |
| 1263 | BusRegistry *registry; |
| 1264 | BusService *serv; |
| 1265 | DBusConnection *conn; |
| 1266 | DBusMessage *reply; |
| 1267 | unsigned long uid; |
| 1268 | dbus_uint32_t uid32; |
| 1269 | |
| 1270 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1271 | |
| 1272 | registry = bus_connection_get_registry (connection); |
| 1273 | |
| 1274 | service = NULL; |
| 1275 | reply = NULL; |
| 1276 | |
| 1277 | if (! dbus_message_get_args (message, error, |
| 1278 | DBUS_TYPE_STRING, &service, |
| 1279 | DBUS_TYPE_INVALID)) |
| 1280 | goto failed; |
| 1281 | |
| 1282 | _dbus_verbose ("asked for UID of connection %s\n", service); |
| 1283 | |
| 1284 | _dbus_string_init_const (&str, service); |
| 1285 | serv = bus_registry_lookup (registry, &str); |
| 1286 | if (serv == NULL) |
| 1287 | { |
| 1288 | dbus_set_error (error, |
| 1289 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1290 | "Could not get UID of name '%s': no such name", service); |
| 1291 | goto failed; |
| 1292 | } |
| 1293 | |
| 1294 | conn = bus_service_get_primary_owners_connection (serv); |
| 1295 | |
| 1296 | reply = dbus_message_new_method_return (message); |
| 1297 | if (reply == NULL) |
| 1298 | goto oom; |
| 1299 | |
| 1300 | if (!dbus_connection_get_unix_user (conn, &uid)) |
| 1301 | { |
| 1302 | dbus_set_error (error, |
| 1303 | DBUS_ERROR_FAILED, |
| 1304 | "Could not determine UID for '%s'", service); |
| 1305 | goto failed; |
| 1306 | } |
| 1307 | |
| 1308 | uid32 = uid; |
| 1309 | if (! dbus_message_append_args (reply, |
| 1310 | DBUS_TYPE_UINT32, &uid32, |
| 1311 | DBUS_TYPE_INVALID)) |
| 1312 | goto oom; |
| 1313 | |
| 1314 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1315 | goto oom; |
| 1316 | |
| 1317 | dbus_message_unref (reply); |
| 1318 | |
| 1319 | return TRUE; |
| 1320 | |
| 1321 | oom: |
| 1322 | BUS_SET_OOM (error); |
| 1323 | |
| 1324 | failed: |
| 1325 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1326 | if (reply) |
| 1327 | dbus_message_unref (reply); |
| 1328 | return FALSE; |
| 1329 | } |
| 1330 | |
| 1331 | static dbus_bool_t |
| 1332 | bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection, |
| 1333 | BusTransaction *transaction, |
| 1334 | DBusMessage *message, |
| 1335 | DBusError *error) |
| 1336 | { |
| 1337 | const char *service; |
| 1338 | DBusString str; |
| 1339 | BusRegistry *registry; |
| 1340 | BusService *serv; |
| 1341 | DBusConnection *conn; |
| 1342 | DBusMessage *reply; |
| 1343 | unsigned long pid; |
| 1344 | dbus_uint32_t pid32; |
| 1345 | |
| 1346 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1347 | |
| 1348 | registry = bus_connection_get_registry (connection); |
| 1349 | |
| 1350 | service = NULL; |
| 1351 | reply = NULL; |
| 1352 | |
| 1353 | if (! dbus_message_get_args (message, error, |
| 1354 | DBUS_TYPE_STRING, &service, |
| 1355 | DBUS_TYPE_INVALID)) |
| 1356 | goto failed; |
| 1357 | |
| 1358 | _dbus_verbose ("asked for PID of connection %s\n", service); |
| 1359 | |
| 1360 | _dbus_string_init_const (&str, service); |
| 1361 | serv = bus_registry_lookup (registry, &str); |
| 1362 | if (serv == NULL) |
| 1363 | { |
| 1364 | dbus_set_error (error, |
| 1365 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1366 | "Could not get PID of name '%s': no such name", service); |
| 1367 | goto failed; |
| 1368 | } |
| 1369 | |
| 1370 | conn = bus_service_get_primary_owners_connection (serv); |
| 1371 | |
| 1372 | reply = dbus_message_new_method_return (message); |
| 1373 | if (reply == NULL) |
| 1374 | goto oom; |
| 1375 | |
| 1376 | if (!dbus_connection_get_unix_process_id (conn, &pid)) |
| 1377 | { |
| 1378 | dbus_set_error (error, |
| 1379 | DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN, |
| 1380 | "Could not determine PID for '%s'", service); |
| 1381 | goto failed; |
| 1382 | } |
| 1383 | |
| 1384 | pid32 = pid; |
| 1385 | if (! dbus_message_append_args (reply, |
| 1386 | DBUS_TYPE_UINT32, &pid32, |
| 1387 | DBUS_TYPE_INVALID)) |
| 1388 | goto oom; |
| 1389 | |
| 1390 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1391 | goto oom; |
| 1392 | |
| 1393 | dbus_message_unref (reply); |
| 1394 | |
| 1395 | return TRUE; |
| 1396 | |
| 1397 | oom: |
| 1398 | BUS_SET_OOM (error); |
| 1399 | |
| 1400 | failed: |
| 1401 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1402 | if (reply) |
| 1403 | dbus_message_unref (reply); |
| 1404 | return FALSE; |
| 1405 | } |
| 1406 | |
| 1407 | static dbus_bool_t |
| 1408 | bus_driver_handle_get_adt_audit_session_data (DBusConnection *connection, |
| 1409 | BusTransaction *transaction, |
| 1410 | DBusMessage *message, |
| 1411 | DBusError *error) |
| 1412 | { |
| 1413 | const char *service; |
| 1414 | DBusString str; |
| 1415 | BusRegistry *registry; |
| 1416 | BusService *serv; |
| 1417 | DBusConnection *conn; |
| 1418 | DBusMessage *reply; |
| 1419 | void *data = NULL; |
| 1420 | dbus_uint32_t data_size; |
| 1421 | |
| 1422 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1423 | |
| 1424 | registry = bus_connection_get_registry (connection); |
| 1425 | |
| 1426 | service = NULL; |
| 1427 | reply = NULL; |
| 1428 | |
| 1429 | if (! dbus_message_get_args (message, error, |
| 1430 | DBUS_TYPE_STRING, &service, |
| 1431 | DBUS_TYPE_INVALID)) |
| 1432 | goto failed; |
| 1433 | |
| 1434 | _dbus_verbose ("asked for audit session data for connection %s\n", service); |
| 1435 | |
| 1436 | _dbus_string_init_const (&str, service); |
| 1437 | serv = bus_registry_lookup (registry, &str); |
| 1438 | if (serv == NULL) |
| 1439 | { |
| 1440 | dbus_set_error (error, |
| 1441 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1442 | "Could not get audit session data for name '%s': no such name", service); |
| 1443 | goto failed; |
| 1444 | } |
| 1445 | |
| 1446 | conn = bus_service_get_primary_owners_connection (serv); |
| 1447 | |
| 1448 | reply = dbus_message_new_method_return (message); |
| 1449 | if (reply == NULL) |
| 1450 | goto oom; |
| 1451 | |
| 1452 | if (!dbus_connection_get_adt_audit_session_data (conn, &data, &data_size) || data == NULL) |
| 1453 | { |
| 1454 | dbus_set_error (error, |
| 1455 | DBUS_ERROR_ADT_AUDIT_DATA_UNKNOWN, |
| 1456 | "Could not determine audit session data for '%s'", service); |
| 1457 | goto failed; |
| 1458 | } |
| 1459 | |
| 1460 | if (! dbus_message_append_args (reply, |
| 1461 | DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &data, data_size, |
| 1462 | DBUS_TYPE_INVALID)) |
| 1463 | goto oom; |
| 1464 | |
| 1465 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1466 | goto oom; |
| 1467 | |
| 1468 | dbus_message_unref (reply); |
| 1469 | |
| 1470 | return TRUE; |
| 1471 | |
| 1472 | oom: |
| 1473 | BUS_SET_OOM (error); |
| 1474 | |
| 1475 | failed: |
| 1476 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1477 | if (reply) |
| 1478 | dbus_message_unref (reply); |
| 1479 | return FALSE; |
| 1480 | } |
| 1481 | |
| 1482 | static dbus_bool_t |
| 1483 | bus_driver_handle_get_connection_selinux_security_context (DBusConnection *connection, |
| 1484 | BusTransaction *transaction, |
| 1485 | DBusMessage *message, |
| 1486 | DBusError *error) |
| 1487 | { |
| 1488 | const char *service; |
| 1489 | DBusString str; |
| 1490 | BusRegistry *registry; |
| 1491 | BusService *serv; |
| 1492 | DBusConnection *conn; |
| 1493 | DBusMessage *reply; |
| 1494 | BusSELinuxID *context; |
| 1495 | |
| 1496 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1497 | |
| 1498 | registry = bus_connection_get_registry (connection); |
| 1499 | |
| 1500 | service = NULL; |
| 1501 | reply = NULL; |
| 1502 | |
| 1503 | if (! dbus_message_get_args (message, error, |
| 1504 | DBUS_TYPE_STRING, &service, |
| 1505 | DBUS_TYPE_INVALID)) |
| 1506 | goto failed; |
| 1507 | |
| 1508 | _dbus_verbose ("asked for security context of connection %s\n", service); |
| 1509 | |
| 1510 | _dbus_string_init_const (&str, service); |
| 1511 | serv = bus_registry_lookup (registry, &str); |
| 1512 | if (serv == NULL) |
| 1513 | { |
| 1514 | dbus_set_error (error, |
| 1515 | DBUS_ERROR_NAME_HAS_NO_OWNER, |
| 1516 | "Could not get security context of name '%s': no such name", service); |
| 1517 | goto failed; |
| 1518 | } |
| 1519 | |
| 1520 | conn = bus_service_get_primary_owners_connection (serv); |
| 1521 | |
| 1522 | reply = dbus_message_new_method_return (message); |
| 1523 | if (reply == NULL) |
| 1524 | goto oom; |
| 1525 | |
| 1526 | context = bus_connection_get_selinux_id (conn); |
| 1527 | if (!context) |
| 1528 | { |
| 1529 | dbus_set_error (error, |
| 1530 | DBUS_ERROR_SELINUX_SECURITY_CONTEXT_UNKNOWN, |
| 1531 | "Could not determine security context for '%s'", service); |
| 1532 | goto failed; |
| 1533 | } |
| 1534 | |
| 1535 | if (! bus_selinux_append_context (reply, context, error)) |
| 1536 | goto failed; |
| 1537 | |
| 1538 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1539 | goto oom; |
| 1540 | |
| 1541 | dbus_message_unref (reply); |
| 1542 | |
| 1543 | return TRUE; |
| 1544 | |
| 1545 | oom: |
| 1546 | BUS_SET_OOM (error); |
| 1547 | |
| 1548 | failed: |
| 1549 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1550 | if (reply) |
| 1551 | dbus_message_unref (reply); |
| 1552 | return FALSE; |
| 1553 | } |
| 1554 | |
| 1555 | static dbus_bool_t |
| 1556 | bus_driver_handle_reload_config (DBusConnection *connection, |
| 1557 | BusTransaction *transaction, |
| 1558 | DBusMessage *message, |
| 1559 | DBusError *error) |
| 1560 | { |
| 1561 | BusContext *context; |
| 1562 | DBusMessage *reply; |
| 1563 | |
| 1564 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1565 | |
| 1566 | reply = NULL; |
| 1567 | |
| 1568 | context = bus_connection_get_context (connection); |
| 1569 | if (!bus_context_reload_config (context, error)) |
| 1570 | goto failed; |
| 1571 | |
| 1572 | reply = dbus_message_new_method_return (message); |
| 1573 | if (reply == NULL) |
| 1574 | goto oom; |
| 1575 | |
| 1576 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1577 | goto oom; |
| 1578 | |
| 1579 | dbus_message_unref (reply); |
| 1580 | return TRUE; |
| 1581 | |
| 1582 | oom: |
| 1583 | BUS_SET_OOM (error); |
| 1584 | |
| 1585 | failed: |
| 1586 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1587 | if (reply) |
| 1588 | dbus_message_unref (reply); |
| 1589 | return FALSE; |
| 1590 | } |
| 1591 | |
| 1592 | static dbus_bool_t |
| 1593 | bus_driver_handle_get_id (DBusConnection *connection, |
| 1594 | BusTransaction *transaction, |
| 1595 | DBusMessage *message, |
| 1596 | DBusError *error) |
| 1597 | { |
| 1598 | BusContext *context; |
| 1599 | DBusMessage *reply; |
| 1600 | DBusString uuid; |
| 1601 | const char *v_STRING; |
| 1602 | |
| 1603 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1604 | |
| 1605 | if (!_dbus_string_init (&uuid)) |
| 1606 | { |
| 1607 | BUS_SET_OOM (error); |
| 1608 | return FALSE; |
| 1609 | } |
| 1610 | |
| 1611 | reply = NULL; |
| 1612 | |
| 1613 | context = bus_connection_get_context (connection); |
| 1614 | if (!bus_context_get_id (context, &uuid)) |
| 1615 | goto oom; |
| 1616 | |
| 1617 | reply = dbus_message_new_method_return (message); |
| 1618 | if (reply == NULL) |
| 1619 | goto oom; |
| 1620 | |
| 1621 | v_STRING = _dbus_string_get_const_data (&uuid); |
| 1622 | if (!dbus_message_append_args (reply, |
| 1623 | DBUS_TYPE_STRING, &v_STRING, |
| 1624 | DBUS_TYPE_INVALID)) |
| 1625 | goto oom; |
| 1626 | |
| 1627 | _dbus_assert (dbus_message_has_signature (reply, "s")); |
| 1628 | |
| 1629 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1630 | goto oom; |
| 1631 | |
| 1632 | _dbus_string_free (&uuid); |
| 1633 | dbus_message_unref (reply); |
| 1634 | return TRUE; |
| 1635 | |
| 1636 | oom: |
| 1637 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1638 | |
| 1639 | BUS_SET_OOM (error); |
| 1640 | |
| 1641 | if (reply) |
| 1642 | dbus_message_unref (reply); |
| 1643 | _dbus_string_free (&uuid); |
| 1644 | return FALSE; |
| 1645 | } |
| 1646 | |
| 1647 | /* For speed it might be useful to sort this in order of |
| 1648 | * frequency of use (but doesn't matter with only a few items |
| 1649 | * anyhow) |
| 1650 | */ |
| 1651 | static struct |
| 1652 | { |
| 1653 | const char *name; |
| 1654 | const char *in_args; |
| 1655 | const char *out_args; |
| 1656 | dbus_bool_t (* handler) (DBusConnection *connection, |
| 1657 | BusTransaction *transaction, |
| 1658 | DBusMessage *message, |
| 1659 | DBusError *error); |
| 1660 | } message_handlers[] = { |
| 1661 | { "Hello", |
| 1662 | "", |
| 1663 | DBUS_TYPE_STRING_AS_STRING, |
| 1664 | bus_driver_handle_hello }, |
| 1665 | { "RequestName", |
| 1666 | DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_UINT32_AS_STRING, |
| 1667 | DBUS_TYPE_UINT32_AS_STRING, |
| 1668 | bus_driver_handle_acquire_service }, |
| 1669 | { "ReleaseName", |
| 1670 | DBUS_TYPE_STRING_AS_STRING, |
| 1671 | DBUS_TYPE_UINT32_AS_STRING, |
| 1672 | bus_driver_handle_release_service }, |
| 1673 | { "StartServiceByName", |
| 1674 | DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_UINT32_AS_STRING, |
| 1675 | DBUS_TYPE_UINT32_AS_STRING, |
| 1676 | bus_driver_handle_activate_service }, |
| 1677 | { "UpdateActivationEnvironment", |
| 1678 | DBUS_TYPE_ARRAY_AS_STRING DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, |
| 1679 | "", |
| 1680 | bus_driver_handle_update_activation_environment }, |
| 1681 | { "NameHasOwner", |
| 1682 | DBUS_TYPE_STRING_AS_STRING, |
| 1683 | DBUS_TYPE_BOOLEAN_AS_STRING, |
| 1684 | bus_driver_handle_service_exists }, |
| 1685 | { "ListNames", |
| 1686 | "", |
| 1687 | DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING, |
| 1688 | bus_driver_handle_list_services }, |
| 1689 | { "ListActivatableNames", |
| 1690 | "", |
| 1691 | DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING, |
| 1692 | bus_driver_handle_list_activatable_services }, |
| 1693 | { "AddMatch", |
| 1694 | DBUS_TYPE_STRING_AS_STRING, |
| 1695 | "", |
| 1696 | bus_driver_handle_add_match }, |
| 1697 | { "RemoveMatch", |
| 1698 | DBUS_TYPE_STRING_AS_STRING, |
| 1699 | "", |
| 1700 | bus_driver_handle_remove_match }, |
| 1701 | { "GetNameOwner", |
| 1702 | DBUS_TYPE_STRING_AS_STRING, |
| 1703 | DBUS_TYPE_STRING_AS_STRING, |
| 1704 | bus_driver_handle_get_service_owner }, |
| 1705 | { "ListQueuedOwners", |
| 1706 | DBUS_TYPE_STRING_AS_STRING, |
| 1707 | DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING, |
| 1708 | bus_driver_handle_list_queued_owners }, |
| 1709 | { "GetConnectionUnixUser", |
| 1710 | DBUS_TYPE_STRING_AS_STRING, |
| 1711 | DBUS_TYPE_UINT32_AS_STRING, |
| 1712 | bus_driver_handle_get_connection_unix_user }, |
| 1713 | { "GetConnectionUnixProcessID", |
| 1714 | DBUS_TYPE_STRING_AS_STRING, |
| 1715 | DBUS_TYPE_UINT32_AS_STRING, |
| 1716 | bus_driver_handle_get_connection_unix_process_id }, |
| 1717 | { "GetAdtAuditSessionData", |
| 1718 | DBUS_TYPE_STRING_AS_STRING, |
| 1719 | DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_BYTE_AS_STRING, |
| 1720 | bus_driver_handle_get_adt_audit_session_data }, |
| 1721 | { "GetConnectionSELinuxSecurityContext", |
| 1722 | DBUS_TYPE_STRING_AS_STRING, |
| 1723 | DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_BYTE_AS_STRING, |
| 1724 | bus_driver_handle_get_connection_selinux_security_context }, |
| 1725 | { "ReloadConfig", |
| 1726 | "", |
| 1727 | "", |
| 1728 | bus_driver_handle_reload_config }, |
| 1729 | { "GetId", |
| 1730 | "", |
| 1731 | DBUS_TYPE_STRING_AS_STRING, |
| 1732 | bus_driver_handle_get_id } |
| 1733 | }; |
| 1734 | |
| 1735 | static dbus_bool_t |
| 1736 | write_args_for_direction (DBusString *xml, |
| 1737 | const char *signature, |
| 1738 | dbus_bool_t in) |
| 1739 | { |
| 1740 | DBusTypeReader typereader; |
| 1741 | DBusString sigstr; |
| 1742 | int current_type; |
| 1743 | |
| 1744 | _dbus_string_init_const (&sigstr, signature); |
| 1745 | _dbus_type_reader_init_types_only (&typereader, &sigstr, 0); |
| 1746 | |
| 1747 | while ((current_type = _dbus_type_reader_get_current_type (&typereader)) != DBUS_TYPE_INVALID) |
| 1748 | { |
| 1749 | const DBusString *subsig; |
| 1750 | int start, len; |
| 1751 | |
| 1752 | _dbus_type_reader_get_signature (&typereader, &subsig, &start, &len); |
| 1753 | if (!_dbus_string_append_printf (xml, " <arg direction=\"%s\" type=\"", |
| 1754 | in ? "in" : "out")) |
| 1755 | goto oom; |
| 1756 | if (!_dbus_string_append_len (xml, |
| 1757 | _dbus_string_get_const_data (subsig) + start, |
| 1758 | len)) |
| 1759 | goto oom; |
| 1760 | if (!_dbus_string_append (xml, "\"/>\n")) |
| 1761 | goto oom; |
| 1762 | |
| 1763 | _dbus_type_reader_next (&typereader); |
| 1764 | } |
| 1765 | return TRUE; |
| 1766 | oom: |
| 1767 | return FALSE; |
| 1768 | } |
| 1769 | |
| 1770 | dbus_bool_t |
| 1771 | bus_driver_generate_introspect_string (DBusString *xml) |
| 1772 | { |
| 1773 | int i; |
| 1774 | |
| 1775 | if (!_dbus_string_append (xml, DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE)) |
| 1776 | return FALSE; |
| 1777 | if (!_dbus_string_append (xml, "<node>\n")) |
| 1778 | return FALSE; |
| 1779 | if (!_dbus_string_append_printf (xml, " <interface name=\"%s\">\n", DBUS_INTERFACE_INTROSPECTABLE)) |
| 1780 | return FALSE; |
| 1781 | if (!_dbus_string_append (xml, " <method name=\"Introspect\">\n")) |
| 1782 | return FALSE; |
| 1783 | if (!_dbus_string_append_printf (xml, " <arg name=\"data\" direction=\"out\" type=\"%s\"/>\n", DBUS_TYPE_STRING_AS_STRING)) |
| 1784 | return FALSE; |
| 1785 | if (!_dbus_string_append (xml, " </method>\n")) |
| 1786 | return FALSE; |
| 1787 | if (!_dbus_string_append (xml, " </interface>\n")) |
| 1788 | return FALSE; |
| 1789 | |
| 1790 | if (!_dbus_string_append_printf (xml, " <interface name=\"%s\">\n", |
| 1791 | DBUS_INTERFACE_DBUS)) |
| 1792 | return FALSE; |
| 1793 | |
| 1794 | i = 0; |
| 1795 | while (i < _DBUS_N_ELEMENTS (message_handlers)) |
| 1796 | { |
| 1797 | |
| 1798 | if (!_dbus_string_append_printf (xml, " <method name=\"%s\">\n", |
| 1799 | message_handlers[i].name)) |
| 1800 | return FALSE; |
| 1801 | |
| 1802 | if (!write_args_for_direction (xml, message_handlers[i].in_args, TRUE)) |
| 1803 | return FALSE; |
| 1804 | |
| 1805 | if (!write_args_for_direction (xml, message_handlers[i].out_args, FALSE)) |
| 1806 | return FALSE; |
| 1807 | |
| 1808 | if (!_dbus_string_append (xml, " </method>\n")) |
| 1809 | return FALSE; |
| 1810 | |
| 1811 | ++i; |
| 1812 | } |
| 1813 | |
| 1814 | if (!_dbus_string_append_printf (xml, " <signal name=\"NameOwnerChanged\">\n")) |
| 1815 | return FALSE; |
| 1816 | |
| 1817 | if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n")) |
| 1818 | return FALSE; |
| 1819 | |
| 1820 | if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n")) |
| 1821 | return FALSE; |
| 1822 | |
| 1823 | if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n")) |
| 1824 | return FALSE; |
| 1825 | |
| 1826 | if (!_dbus_string_append_printf (xml, " </signal>\n")) |
| 1827 | return FALSE; |
| 1828 | |
| 1829 | |
| 1830 | |
| 1831 | if (!_dbus_string_append_printf (xml, " <signal name=\"NameLost\">\n")) |
| 1832 | return FALSE; |
| 1833 | |
| 1834 | if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n")) |
| 1835 | return FALSE; |
| 1836 | |
| 1837 | if (!_dbus_string_append_printf (xml, " </signal>\n")) |
| 1838 | return FALSE; |
| 1839 | |
| 1840 | |
| 1841 | |
| 1842 | if (!_dbus_string_append_printf (xml, " <signal name=\"NameAcquired\">\n")) |
| 1843 | return FALSE; |
| 1844 | |
| 1845 | if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n")) |
| 1846 | return FALSE; |
| 1847 | |
| 1848 | if (!_dbus_string_append_printf (xml, " </signal>\n")) |
| 1849 | return FALSE; |
| 1850 | |
| 1851 | if (!_dbus_string_append (xml, " </interface>\n")) |
| 1852 | return FALSE; |
| 1853 | |
| 1854 | if (!_dbus_string_append (xml, "</node>\n")) |
| 1855 | return FALSE; |
| 1856 | |
| 1857 | return TRUE; |
| 1858 | } |
| 1859 | |
| 1860 | static dbus_bool_t |
| 1861 | bus_driver_handle_introspect (DBusConnection *connection, |
| 1862 | BusTransaction *transaction, |
| 1863 | DBusMessage *message, |
| 1864 | DBusError *error) |
| 1865 | { |
| 1866 | DBusString xml; |
| 1867 | DBusMessage *reply; |
| 1868 | const char *v_STRING; |
| 1869 | |
| 1870 | _dbus_verbose ("Introspect() on bus driver\n"); |
| 1871 | |
| 1872 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1873 | |
| 1874 | reply = NULL; |
| 1875 | |
| 1876 | if (! dbus_message_get_args (message, error, |
| 1877 | DBUS_TYPE_INVALID)) |
| 1878 | { |
| 1879 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1880 | return FALSE; |
| 1881 | } |
| 1882 | |
| 1883 | if (!_dbus_string_init (&xml)) |
| 1884 | { |
| 1885 | BUS_SET_OOM (error); |
| 1886 | return FALSE; |
| 1887 | } |
| 1888 | |
| 1889 | if (!bus_driver_generate_introspect_string (&xml)) |
| 1890 | goto oom; |
| 1891 | |
| 1892 | v_STRING = _dbus_string_get_const_data (&xml); |
| 1893 | |
| 1894 | reply = dbus_message_new_method_return (message); |
| 1895 | if (reply == NULL) |
| 1896 | goto oom; |
| 1897 | |
| 1898 | if (! dbus_message_append_args (reply, |
| 1899 | DBUS_TYPE_STRING, &v_STRING, |
| 1900 | DBUS_TYPE_INVALID)) |
| 1901 | goto oom; |
| 1902 | |
| 1903 | if (! bus_transaction_send_from_driver (transaction, connection, reply)) |
| 1904 | goto oom; |
| 1905 | |
| 1906 | dbus_message_unref (reply); |
| 1907 | _dbus_string_free (&xml); |
| 1908 | |
| 1909 | return TRUE; |
| 1910 | |
| 1911 | oom: |
| 1912 | BUS_SET_OOM (error); |
| 1913 | |
| 1914 | if (reply) |
| 1915 | dbus_message_unref (reply); |
| 1916 | |
| 1917 | _dbus_string_free (&xml); |
| 1918 | |
| 1919 | return FALSE; |
| 1920 | } |
| 1921 | |
| 1922 | dbus_bool_t |
| 1923 | bus_driver_handle_message (DBusConnection *connection, |
| 1924 | BusTransaction *transaction, |
| 1925 | DBusMessage *message, |
| 1926 | DBusError *error) |
| 1927 | { |
| 1928 | const char *name, *sender, *interface; |
| 1929 | int i; |
| 1930 | |
| 1931 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1932 | |
| 1933 | if (dbus_message_is_signal (message, "org.freedesktop.systemd1.Activator", "ActivationFailure")) |
| 1934 | { |
| 1935 | BusContext *context; |
| 1936 | |
| 1937 | context = bus_connection_get_context (connection); |
| 1938 | return dbus_activation_systemd_failure(bus_context_get_activation(context), message); |
| 1939 | } |
| 1940 | |
| 1941 | if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_METHOD_CALL) |
| 1942 | { |
| 1943 | _dbus_verbose ("Driver got a non-method-call message, ignoring\n"); |
| 1944 | return TRUE; /* we just ignore this */ |
| 1945 | } |
| 1946 | |
| 1947 | if (dbus_message_is_method_call (message, |
| 1948 | DBUS_INTERFACE_INTROSPECTABLE, |
| 1949 | "Introspect")) |
| 1950 | return bus_driver_handle_introspect (connection, transaction, message, error); |
| 1951 | |
| 1952 | interface = dbus_message_get_interface (message); |
| 1953 | if (interface == NULL) |
| 1954 | interface = DBUS_INTERFACE_DBUS; |
| 1955 | |
| 1956 | _dbus_assert (dbus_message_get_member (message) != NULL); |
| 1957 | |
| 1958 | name = dbus_message_get_member (message); |
| 1959 | sender = dbus_message_get_sender (message); |
| 1960 | |
| 1961 | if (strcmp (interface, |
| 1962 | DBUS_INTERFACE_DBUS) != 0) |
| 1963 | { |
| 1964 | _dbus_verbose ("Driver got message to unknown interface \"%s\"\n", |
| 1965 | interface); |
| 1966 | goto unknown; |
| 1967 | } |
| 1968 | |
| 1969 | _dbus_verbose ("Driver got a method call: %s\n", |
| 1970 | dbus_message_get_member (message)); |
| 1971 | |
| 1972 | /* security checks should have kept this from getting here */ |
| 1973 | _dbus_assert (sender != NULL || strcmp (name, "Hello") == 0); |
| 1974 | |
| 1975 | i = 0; |
| 1976 | while (i < _DBUS_N_ELEMENTS (message_handlers)) |
| 1977 | { |
| 1978 | if (strcmp (message_handlers[i].name, name) == 0) |
| 1979 | { |
| 1980 | _dbus_verbose ("Found driver handler for %s\n", name); |
| 1981 | |
| 1982 | if (!dbus_message_has_signature (message, message_handlers[i].in_args)) |
| 1983 | { |
| 1984 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 1985 | _dbus_verbose ("Call to %s has wrong args (%s, expected %s)\n", |
| 1986 | name, dbus_message_get_signature (message), |
| 1987 | message_handlers[i].in_args); |
| 1988 | |
| 1989 | dbus_set_error (error, DBUS_ERROR_INVALID_ARGS, |
| 1990 | "Call to %s has wrong args (%s, expected %s)\n", |
| 1991 | name, dbus_message_get_signature (message), |
| 1992 | message_handlers[i].in_args); |
| 1993 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 1994 | return FALSE; |
| 1995 | } |
| 1996 | |
| 1997 | if ((* message_handlers[i].handler) (connection, transaction, message, error)) |
| 1998 | { |
| 1999 | _DBUS_ASSERT_ERROR_IS_CLEAR (error); |
| 2000 | _dbus_verbose ("Driver handler succeeded\n"); |
| 2001 | return TRUE; |
| 2002 | } |
| 2003 | else |
| 2004 | { |
| 2005 | _DBUS_ASSERT_ERROR_IS_SET (error); |
| 2006 | _dbus_verbose ("Driver handler returned failure\n"); |
| 2007 | return FALSE; |
| 2008 | } |
| 2009 | } |
| 2010 | |
| 2011 | ++i; |
| 2012 | } |
| 2013 | |
| 2014 | unknown: |
| 2015 | _dbus_verbose ("No driver handler for message \"%s\"\n", |
| 2016 | name); |
| 2017 | |
| 2018 | dbus_set_error (error, DBUS_ERROR_UNKNOWN_METHOD, |
| 2019 | "%s does not understand message %s", |
| 2020 | DBUS_SERVICE_DBUS, name); |
| 2021 | |
| 2022 | return FALSE; |
| 2023 | } |
| 2024 | |
| 2025 | void |
| 2026 | bus_driver_remove_connection (DBusConnection *connection) |
| 2027 | { |
| 2028 | /* FIXME 1.0 Does nothing for now, should unregister the connection |
| 2029 | * with the bus driver. |
| 2030 | */ |
| 2031 | } |