| | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| | 2 | |
| | 3 | #include "sd-bus.h" |
| | 4 | |
| | 5 | #include "alloc-util.h" |
| | 6 | #include "bus-control.h" |
| | 7 | #include "bus-internal.h" |
| | 8 | #include "bus-message.h" |
| | 9 | #include "fd-util.h" |
| | 10 | #include "log.h" |
| | 11 | #include "pidref.h" |
| | 12 | #include "process-util.h" |
| | 13 | #include "string-util.h" |
| | 14 | #include "strv.h" |
| | 15 | #include "user-util.h" |
| | 16 | |
| | 17 | _public_ int sd_bus_get_unique_name(sd_bus *bus, const char **unique) { |
| | 18 | int r; |
| | 19 | |
| | 20 | assert_return(bus, -EINVAL); |
| | 21 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 22 | assert_return(unique, -EINVAL); |
| | 23 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 24 | |
| | 25 | if (!bus->bus_client) |
| | 26 | return -EINVAL; |
| | 27 | |
| | 28 | r = bus_ensure_running(bus); |
| | 29 | if (r < 0) |
| | 30 | return r; |
| | 31 | |
| | 32 | *unique = bus->unique_name; |
| | 33 | return 0; |
| | 34 | } |
| | 35 | |
| | 36 | static int validate_request_name_parameters( |
| | 37 | sd_bus *bus, |
| | 38 | const char *name, |
| | 39 | uint64_t flags, |
| | 40 | uint32_t *ret_param) { |
| | 41 | |
| | 42 | uint32_t param = 0; |
| | 43 | |
| | 44 | assert(bus); |
| | 45 | assert(name); |
| | 46 | assert(ret_param); |
| | 47 | |
| | 48 | assert_return(!(flags & ~(SD_BUS_NAME_ALLOW_REPLACEMENT|SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_QUEUE)), -EINVAL); |
| | 49 | assert_return(service_name_is_valid(name), -EINVAL); |
| | 50 | assert_return(name[0] != ':', -EINVAL); |
| | 51 | |
| | 52 | if (!bus->bus_client) |
| | 53 | return -EINVAL; |
| | 54 | |
| | 55 | /* Don't allow requesting the special driver and local names */ |
| | 56 | if (STR_IN_SET(name, "org.freedesktop.DBus", "org.freedesktop.DBus.Local")) |
| | 57 | return -EINVAL; |
| | 58 | |
| | 59 | if (!BUS_IS_OPEN(bus->state)) |
| | 60 | return -ENOTCONN; |
| | 61 | |
| | 62 | if (flags & SD_BUS_NAME_ALLOW_REPLACEMENT) |
| | 63 | param |= BUS_NAME_ALLOW_REPLACEMENT; |
| | 64 | if (flags & SD_BUS_NAME_REPLACE_EXISTING) |
| | 65 | param |= BUS_NAME_REPLACE_EXISTING; |
| | 66 | if (!(flags & SD_BUS_NAME_QUEUE)) |
| | 67 | param |= BUS_NAME_DO_NOT_QUEUE; |
| | 68 | |
| | 69 | *ret_param = param; |
| | 70 | |
| | 71 | return 0; |
| | 72 | } |
| | 73 | |
| | 74 | _public_ int sd_bus_request_name( |
| | 75 | sd_bus *bus, |
| | 76 | const char *name, |
| | 77 | uint64_t flags) { |
| | 78 | |
| | 79 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| | 80 | uint32_t ret, param = 0; |
| | 81 | int r; |
| | 82 | |
| | 83 | assert_return(bus, -EINVAL); |
| | 84 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 85 | assert_return(name, -EINVAL); |
| | 86 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 87 | |
| | 88 | r = validate_request_name_parameters(bus, name, flags, ¶m); |
| | 89 | if (r < 0) |
| | 90 | return r; |
| | 91 | |
| | 92 | r = sd_bus_call_method( |
| | 93 | bus, |
| | 94 | "org.freedesktop.DBus", |
| | 95 | "/org/freedesktop/DBus", |
| | 96 | "org.freedesktop.DBus", |
| | 97 | "RequestName", |
| | 98 | NULL, |
| | 99 | &reply, |
| | 100 | "su", |
| | 101 | name, |
| | 102 | param); |
| | 103 | if (r < 0) |
| | 104 | return r; |
| | 105 | |
| | 106 | r = sd_bus_message_read(reply, "u", &ret); |
| | 107 | if (r < 0) |
| | 108 | return r; |
| | 109 | |
| | 110 | switch (ret) { |
| | 111 | |
| | 112 | case BUS_NAME_ALREADY_OWNER: |
| | 113 | return -EALREADY; |
| | 114 | |
| | 115 | case BUS_NAME_EXISTS: |
| | 116 | return -EEXIST; |
| | 117 | |
| | 118 | case BUS_NAME_IN_QUEUE: |
| | 119 | return 0; |
| | 120 | |
| | 121 | case BUS_NAME_PRIMARY_OWNER: |
| | 122 | return 1; |
| | 123 | } |
| | 124 | |
| | 125 | return -EIO; |
| | 126 | } |
| | 127 | |
| | 128 | static int default_request_name_handler( |
| | 129 | sd_bus_message *m, |
| | 130 | void *userdata, |
| | 131 | sd_bus_error *ret_error) { |
| | 132 | |
| | 133 | uint32_t ret; |
| | 134 | int r; |
| | 135 | |
| | 136 | assert(m); |
| | 137 | |
| | 138 | if (sd_bus_message_is_method_error(m, NULL)) { |
| | 139 | log_debug_errno(sd_bus_message_get_errno(m), |
| | 140 | "Unable to request name, failing connection: %s", |
| | 141 | sd_bus_message_get_error(m)->message); |
| | 142 | |
| | 143 | bus_enter_closing(sd_bus_message_get_bus(m)); |
| | 144 | return 1; |
| | 145 | } |
| | 146 | |
| | 147 | r = sd_bus_message_read(m, "u", &ret); |
| | 148 | if (r < 0) |
| | 149 | return r; |
| | 150 | |
| | 151 | switch (ret) { |
| | 152 | |
| | 153 | case BUS_NAME_ALREADY_OWNER: |
| | 154 | log_debug("Already owner of requested service name, ignoring."); |
| | 155 | return 1; |
| | 156 | |
| | 157 | case BUS_NAME_IN_QUEUE: |
| | 158 | log_debug("In queue for requested service name."); |
| | 159 | return 1; |
| | 160 | |
| | 161 | case BUS_NAME_PRIMARY_OWNER: |
| | 162 | log_debug("Successfully acquired requested service name."); |
| | 163 | return 1; |
| | 164 | |
| | 165 | case BUS_NAME_EXISTS: |
| | 166 | log_debug("Requested service name already owned, failing connection."); |
| | 167 | bus_enter_closing(sd_bus_message_get_bus(m)); |
| | 168 | return 1; |
| | 169 | } |
| | 170 | |
| | 171 | log_debug("Unexpected response from RequestName(), failing connection."); |
| | 172 | bus_enter_closing(sd_bus_message_get_bus(m)); |
| | 173 | return 1; |
| | 174 | } |
| | 175 | |
| | 176 | _public_ int sd_bus_request_name_async( |
| | 177 | sd_bus *bus, |
| | 178 | sd_bus_slot **ret_slot, |
| | 179 | const char *name, |
| | 180 | uint64_t flags, |
| | 181 | sd_bus_message_handler_t callback, |
| | 182 | void *userdata) { |
| | 183 | |
| | 184 | uint32_t param = 0; |
| | 185 | int r; |
| | 186 | |
| | 187 | assert_return(bus, -EINVAL); |
| | 188 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 189 | assert_return(name, -EINVAL); |
| | 190 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 191 | |
| | 192 | r = validate_request_name_parameters(bus, name, flags, ¶m); |
| | 193 | if (r < 0) |
| | 194 | return r; |
| | 195 | |
| | 196 | return sd_bus_call_method_async( |
| | 197 | bus, |
| | 198 | ret_slot, |
| | 199 | "org.freedesktop.DBus", |
| | 200 | "/org/freedesktop/DBus", |
| | 201 | "org.freedesktop.DBus", |
| | 202 | "RequestName", |
| | 203 | callback ?: default_request_name_handler, |
| | 204 | userdata, |
| | 205 | "su", |
| | 206 | name, |
| | 207 | param); |
| | 208 | } |
| | 209 | |
| | 210 | static int validate_release_name_parameters( |
| | 211 | sd_bus *bus, |
| | 212 | const char *name) { |
| | 213 | |
| | 214 | assert(bus); |
| | 215 | assert(name); |
| | 216 | |
| | 217 | assert_return(service_name_is_valid(name), -EINVAL); |
| | 218 | assert_return(name[0] != ':', -EINVAL); |
| | 219 | |
| | 220 | if (!bus->bus_client) |
| | 221 | return -EINVAL; |
| | 222 | |
| | 223 | /* Don't allow releasing the special driver and local names */ |
| | 224 | if (STR_IN_SET(name, "org.freedesktop.DBus", "org.freedesktop.DBus.Local")) |
| | 225 | return -EINVAL; |
| | 226 | |
| | 227 | if (!BUS_IS_OPEN(bus->state)) |
| | 228 | return -ENOTCONN; |
| | 229 | |
| | 230 | return 0; |
| | 231 | } |
| | 232 | |
| | 233 | _public_ int sd_bus_release_name( |
| | 234 | sd_bus *bus, |
| | 235 | const char *name) { |
| | 236 | |
| | 237 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| | 238 | uint32_t ret; |
| | 239 | int r; |
| | 240 | |
| | 241 | assert_return(bus, -EINVAL); |
| | 242 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 243 | assert_return(name, -EINVAL); |
| | 244 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 245 | |
| | 246 | r = validate_release_name_parameters(bus, name); |
| | 247 | if (r < 0) |
| | 248 | return r; |
| | 249 | |
| | 250 | r = sd_bus_call_method( |
| | 251 | bus, |
| | 252 | "org.freedesktop.DBus", |
| | 253 | "/org/freedesktop/DBus", |
| | 254 | "org.freedesktop.DBus", |
| | 255 | "ReleaseName", |
| | 256 | NULL, |
| | 257 | &reply, |
| | 258 | "s", |
| | 259 | name); |
| | 260 | if (r < 0) |
| | 261 | return r; |
| | 262 | |
| | 263 | r = sd_bus_message_read(reply, "u", &ret); |
| | 264 | if (r < 0) |
| | 265 | return r; |
| | 266 | |
| | 267 | switch (ret) { |
| | 268 | |
| | 269 | case BUS_NAME_NON_EXISTENT: |
| | 270 | return -ESRCH; |
| | 271 | |
| | 272 | case BUS_NAME_NOT_OWNER: |
| | 273 | return -EADDRINUSE; |
| | 274 | |
| | 275 | case BUS_NAME_RELEASED: |
| | 276 | return 0; |
| | 277 | } |
| | 278 | |
| | 279 | return -EIO; |
| | 280 | } |
| | 281 | |
| | 282 | static int default_release_name_handler( |
| | 283 | sd_bus_message *m, |
| | 284 | void *userdata, |
| | 285 | sd_bus_error *ret_error) { |
| | 286 | |
| | 287 | uint32_t ret; |
| | 288 | int r; |
| | 289 | |
| | 290 | assert(m); |
| | 291 | |
| | 292 | if (sd_bus_message_is_method_error(m, NULL)) { |
| | 293 | log_debug_errno(sd_bus_message_get_errno(m), |
| | 294 | "Unable to release name, failing connection: %s", |
| | 295 | sd_bus_message_get_error(m)->message); |
| | 296 | |
| | 297 | bus_enter_closing(sd_bus_message_get_bus(m)); |
| | 298 | return 1; |
| | 299 | } |
| | 300 | |
| | 301 | r = sd_bus_message_read(m, "u", &ret); |
| | 302 | if (r < 0) |
| | 303 | return r; |
| | 304 | |
| | 305 | switch (ret) { |
| | 306 | |
| | 307 | case BUS_NAME_NON_EXISTENT: |
| | 308 | log_debug("Name asked to release is not taken currently, ignoring."); |
| | 309 | return 1; |
| | 310 | |
| | 311 | case BUS_NAME_NOT_OWNER: |
| | 312 | log_debug("Name asked to release is owned by somebody else, ignoring."); |
| | 313 | return 1; |
| | 314 | |
| | 315 | case BUS_NAME_RELEASED: |
| | 316 | log_debug("Name successfully released."); |
| | 317 | return 1; |
| | 318 | } |
| | 319 | |
| | 320 | log_debug("Unexpected response from ReleaseName(), failing connection."); |
| | 321 | bus_enter_closing(sd_bus_message_get_bus(m)); |
| | 322 | return 1; |
| | 323 | } |
| | 324 | |
| | 325 | _public_ int sd_bus_release_name_async( |
| | 326 | sd_bus *bus, |
| | 327 | sd_bus_slot **ret_slot, |
| | 328 | const char *name, |
| | 329 | sd_bus_message_handler_t callback, |
| | 330 | void *userdata) { |
| | 331 | |
| | 332 | int r; |
| | 333 | |
| | 334 | assert_return(bus, -EINVAL); |
| | 335 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 336 | assert_return(name, -EINVAL); |
| | 337 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 338 | |
| | 339 | r = validate_release_name_parameters(bus, name); |
| | 340 | if (r < 0) |
| | 341 | return r; |
| | 342 | |
| | 343 | return sd_bus_call_method_async( |
| | 344 | bus, |
| | 345 | ret_slot, |
| | 346 | "org.freedesktop.DBus", |
| | 347 | "/org/freedesktop/DBus", |
| | 348 | "org.freedesktop.DBus", |
| | 349 | "ReleaseName", |
| | 350 | callback ?: default_release_name_handler, |
| | 351 | userdata, |
| | 352 | "s", |
| | 353 | name); |
| | 354 | } |
| | 355 | |
| | 356 | _public_ int sd_bus_list_names(sd_bus *bus, char ***ret_acquired, char ***ret_activatable) { |
| | 357 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| | 358 | _cleanup_strv_free_ char **x = NULL, **y = NULL; |
| | 359 | int r; |
| | 360 | |
| | 361 | assert_return(bus, -EINVAL); |
| | 362 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 363 | assert_return(ret_acquired || ret_activatable, -EINVAL); |
| | 364 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 365 | |
| | 366 | if (!bus->bus_client) |
| | 367 | return -EINVAL; |
| | 368 | |
| | 369 | if (!BUS_IS_OPEN(bus->state)) |
| | 370 | return -ENOTCONN; |
| | 371 | |
| | 372 | if (ret_acquired) { |
| | 373 | r = sd_bus_call_method( |
| | 374 | bus, |
| | 375 | "org.freedesktop.DBus", |
| | 376 | "/org/freedesktop/DBus", |
| | 377 | "org.freedesktop.DBus", |
| | 378 | "ListNames", |
| | 379 | NULL, |
| | 380 | &reply, |
| | 381 | NULL); |
| | 382 | if (r < 0) |
| | 383 | return r; |
| | 384 | |
| | 385 | r = sd_bus_message_read_strv(reply, &x); |
| | 386 | if (r < 0) |
| | 387 | return r; |
| | 388 | |
| | 389 | reply = sd_bus_message_unref(reply); |
| | 390 | } |
| | 391 | |
| | 392 | if (ret_activatable) { |
| | 393 | r = sd_bus_call_method( |
| | 394 | bus, |
| | 395 | "org.freedesktop.DBus", |
| | 396 | "/org/freedesktop/DBus", |
| | 397 | "org.freedesktop.DBus", |
| | 398 | "ListActivatableNames", |
| | 399 | NULL, |
| | 400 | &reply, |
| | 401 | NULL); |
| | 402 | if (r < 0) |
| | 403 | return r; |
| | 404 | |
| | 405 | r = sd_bus_message_read_strv(reply, &y); |
| | 406 | if (r < 0) |
| | 407 | return r; |
| | 408 | |
| | 409 | *ret_activatable = TAKE_PTR(y); |
| | 410 | } |
| | 411 | |
| | 412 | if (ret_acquired) |
| | 413 | *ret_acquired = TAKE_PTR(x); |
| | 414 | |
| | 415 | return 0; |
| | 416 | } |
| | 417 | |
| | 418 | _public_ int sd_bus_get_name_creds( |
| | 419 | sd_bus *bus, |
| | 420 | const char *name, |
| | 421 | uint64_t mask, |
| | 422 | sd_bus_creds **ret) { |
| | 423 | |
| | 424 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply_unique = NULL, *reply = NULL; |
| | 425 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *c = NULL; |
| | 426 | const char *unique; |
| | 427 | int r; |
| | 428 | |
| | 429 | assert_return(bus, -EINVAL); |
| | 430 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 431 | assert_return(name, -EINVAL); |
| | 432 | assert_return((mask & ~SD_BUS_CREDS_AUGMENT) <= _SD_BUS_CREDS_ALL, -EOPNOTSUPP); |
| | 433 | assert_return(mask == 0 || ret, -EINVAL); |
| | 434 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 435 | assert_return(service_name_is_valid(name), -EINVAL); |
| | 436 | |
| | 437 | if (!bus->bus_client) |
| | 438 | return -EINVAL; |
| | 439 | |
| | 440 | /* Turn off augmenting if this isn't a local connection. If the connection is not local, then /proc is not |
| | 441 | * going to match. */ |
| | 442 | if (!bus->is_local) |
| | 443 | mask &= ~SD_BUS_CREDS_AUGMENT; |
| | 444 | |
| | 445 | if (streq(name, "org.freedesktop.DBus.Local")) |
| | 446 | return -EINVAL; |
| | 447 | |
| | 448 | if (streq(name, "org.freedesktop.DBus")) |
| | 449 | return sd_bus_get_owner_creds(bus, mask, ret); |
| | 450 | |
| | 451 | if (!BUS_IS_OPEN(bus->state)) |
| | 452 | return -ENOTCONN; |
| | 453 | |
| | 454 | /* If the name is unique anyway, we can use it directly */ |
| | 455 | unique = name[0] == ':' ? name : NULL; |
| | 456 | |
| | 457 | /* Only query the owner if the caller wants to know it and the name is not unique anyway, or if the caller just |
| | 458 | * wants to check whether a name exists */ |
| | 459 | if ((FLAGS_SET(mask, SD_BUS_CREDS_UNIQUE_NAME) && !unique) || mask == 0) { |
| | 460 | r = sd_bus_call_method( |
| | 461 | bus, |
| | 462 | "org.freedesktop.DBus", |
| | 463 | "/org/freedesktop/DBus", |
| | 464 | "org.freedesktop.DBus", |
| | 465 | "GetNameOwner", |
| | 466 | NULL, |
| | 467 | &reply_unique, |
| | 468 | "s", |
| | 469 | name); |
| | 470 | if (r < 0) |
| | 471 | return r; |
| | 472 | |
| | 473 | r = sd_bus_message_read(reply_unique, "s", &unique); |
| | 474 | if (r < 0) |
| | 475 | return r; |
| | 476 | } |
| | 477 | |
| | 478 | if (mask != 0) { |
| | 479 | bool need_pid, need_uid, need_gids, need_selinux, need_separate_calls, need_pidfd, need_augment; |
| | 480 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| | 481 | _cleanup_(pidref_done) PidRef pidref = PIDREF_NULL; |
| | 482 | |
| | 483 | c = bus_creds_new(); |
| | 484 | if (!c) |
| | 485 | return -ENOMEM; |
| | 486 | |
| | 487 | if ((mask & SD_BUS_CREDS_UNIQUE_NAME) && unique) { |
| | 488 | c->unique_name = strdup(unique); |
| | 489 | if (!c->unique_name) |
| | 490 | return -ENOMEM; |
| | 491 | |
| | 492 | c->mask |= SD_BUS_CREDS_UNIQUE_NAME; |
| | 493 | } |
| | 494 | |
| | 495 | need_augment = |
| | 496 | (mask & SD_BUS_CREDS_AUGMENT) && |
| | 497 | (mask & (SD_BUS_CREDS_UID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID| |
| | 498 | SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID| |
| | 499 | SD_BUS_CREDS_SUPPLEMENTARY_GIDS| |
| | 500 | SD_BUS_CREDS_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE| |
| | 501 | SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID| |
| | 502 | SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS| |
| | 503 | SD_BUS_CREDS_SELINUX_CONTEXT| |
| | 504 | SD_BUS_CREDS_AUDIT_SESSION_ID|SD_BUS_CREDS_AUDIT_LOGIN_UID| |
| | 505 | SD_BUS_CREDS_PIDFD)); |
| | 506 | |
| | 507 | need_pid = (mask & SD_BUS_CREDS_PID) || need_augment; |
| | 508 | need_uid = mask & SD_BUS_CREDS_EUID; |
| | 509 | need_gids = mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS; |
| | 510 | need_selinux = mask & SD_BUS_CREDS_SELINUX_CONTEXT; |
| | 511 | need_pidfd = (mask & SD_BUS_CREDS_PIDFD) || need_augment; |
| | 512 | |
| | 513 | if (need_pid + need_uid + need_selinux + need_pidfd + need_gids > 1) { |
| | 514 | |
| | 515 | /* If we need more than one of the credentials, then use GetConnectionCredentials() */ |
| | 516 | |
| | 517 | r = sd_bus_call_method( |
| | 518 | bus, |
| | 519 | "org.freedesktop.DBus", |
| | 520 | "/org/freedesktop/DBus", |
| | 521 | "org.freedesktop.DBus", |
| | 522 | "GetConnectionCredentials", |
| | 523 | &error, |
| | 524 | &reply, |
| | 525 | "s", |
| | 526 | unique ?: name); |
| | 527 | |
| | 528 | if (r < 0) { |
| | 529 | |
| | 530 | if (!sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) |
| | 531 | return r; |
| | 532 | |
| | 533 | /* If we got an unknown method error, fall back to the individual calls... */ |
| | 534 | need_separate_calls = true; |
| | 535 | sd_bus_error_free(&error); |
| | 536 | |
| | 537 | } else { |
| | 538 | need_separate_calls = false; |
| | 539 | |
| | 540 | r = sd_bus_message_enter_container(reply, 'a', "{sv}"); |
| | 541 | if (r < 0) |
| | 542 | return r; |
| | 543 | |
| | 544 | for (;;) { |
| | 545 | const char *m; |
| | 546 | |
| | 547 | r = sd_bus_message_enter_container(reply, 'e', "sv"); |
| | 548 | if (r < 0) |
| | 549 | return r; |
| | 550 | if (r == 0) |
| | 551 | break; |
| | 552 | |
| | 553 | r = sd_bus_message_read(reply, "s", &m); |
| | 554 | if (r < 0) |
| | 555 | return r; |
| | 556 | |
| | 557 | if (need_uid && streq(m, "UnixUserID")) { |
| | 558 | uint32_t u; |
| | 559 | |
| | 560 | r = sd_bus_message_read(reply, "v", "u", &u); |
| | 561 | if (r < 0) |
| | 562 | return r; |
| | 563 | |
| | 564 | c->euid = u; |
| | 565 | c->mask |= SD_BUS_CREDS_EUID; |
| | 566 | |
| | 567 | } else if (need_pid && streq(m, "ProcessID")) { |
| | 568 | uint32_t p; |
| | 569 | |
| | 570 | r = sd_bus_message_read(reply, "v", "u", &p); |
| | 571 | if (r < 0) |
| | 572 | return r; |
| | 573 | |
| | 574 | if (!pidref_is_set(&pidref)) |
| | 575 | pidref = PIDREF_MAKE_FROM_PID(p); |
| | 576 | |
| | 577 | if (mask & SD_BUS_CREDS_PID) { |
| | 578 | c->pid = p; |
| | 579 | c->mask |= SD_BUS_CREDS_PID; |
| | 580 | } |
| | 581 | |
| | 582 | } else if (need_selinux && streq(m, "LinuxSecurityLabel")) { |
| | 583 | const void *p = NULL; |
| | 584 | size_t sz = 0; |
| | 585 | |
| | 586 | r = sd_bus_message_enter_container(reply, 'v', "ay"); |
| | 587 | if (r < 0) |
| | 588 | return r; |
| | 589 | |
| | 590 | r = sd_bus_message_read_array(reply, 'y', &p, &sz); |
| | 591 | if (r < 0) |
| | 592 | return r; |
| | 593 | |
| | 594 | r = free_and_strndup(&c->label, p, sz); |
| | 595 | if (r < 0) |
| | 596 | return r; |
| | 597 | |
| | 598 | c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT; |
| | 599 | |
| | 600 | r = sd_bus_message_exit_container(reply); |
| | 601 | if (r < 0) |
| | 602 | return r; |
| | 603 | } else if (need_pidfd && streq(m, "ProcessFD")) { |
| | 604 | int fd; |
| | 605 | |
| | 606 | r = sd_bus_message_read(reply, "v", "h", &fd); |
| | 607 | if (r < 0) |
| | 608 | return r; |
| | 609 | |
| | 610 | pidref_done(&pidref); |
| | 611 | r = pidref_set_pidfd(&pidref, fd); |
| | 612 | if (r < 0) |
| | 613 | return r; |
| | 614 | |
| | 615 | if (mask & SD_BUS_CREDS_PIDFD) { |
| | 616 | fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
| | 617 | if (fd < 0) |
| | 618 | return -errno; |
| | 619 | |
| | 620 | close_and_replace(c->pidfd, fd); |
| | 621 | c->mask |= SD_BUS_CREDS_PIDFD; |
| | 622 | } |
| | 623 | } else if (need_gids && streq(m, "UnixGroupIDs")) { |
| | 624 | |
| | 625 | /* Note that D-Bus actually only gives us a combined list of |
| | 626 | * primary gid and supplementary gids. And we don't know |
| | 627 | * which one the primary one is. We'll take the whole shebang |
| | 628 | * hence and use it as the supplementary group list, and not |
| | 629 | * initialize the primary gid field. This is slightly |
| | 630 | * incorrect of course, but only slightly, as in effect if |
| | 631 | * the primary gid is also listed in the supplementary gid |
| | 632 | * it has zero effect. */ |
| | 633 | |
| | 634 | r = sd_bus_message_enter_container(reply, 'v', "au"); |
| | 635 | if (r < 0) |
| | 636 | return r; |
| | 637 | |
| | 638 | r = sd_bus_message_enter_container(reply, 'a', "u"); |
| | 639 | if (r < 0) |
| | 640 | return r; |
| | 641 | |
| | 642 | for (;;) { |
| | 643 | uint32_t u; |
| | 644 | |
| | 645 | r = sd_bus_message_read(reply, "u", &u); |
| | 646 | if (r < 0) |
| | 647 | return r; |
| | 648 | if (r == 0) |
| | 649 | break; |
| | 650 | |
| | 651 | if (!GREEDY_REALLOC(c->supplementary_gids, c->n_supplementary_gids+1)) |
| | 652 | return -ENOMEM; |
| | 653 | |
| | 654 | c->supplementary_gids[c->n_supplementary_gids++] = (gid_t) u; |
| | 655 | } |
| | 656 | |
| | 657 | r = sd_bus_message_exit_container(reply); |
| | 658 | if (r < 0) |
| | 659 | return r; |
| | 660 | |
| | 661 | r = sd_bus_message_exit_container(reply); |
| | 662 | if (r < 0) |
| | 663 | return r; |
| | 664 | |
| | 665 | c->mask |= SD_BUS_CREDS_SUPPLEMENTARY_GIDS; |
| | 666 | } else { |
| | 667 | r = sd_bus_message_skip(reply, "v"); |
| | 668 | if (r < 0) |
| | 669 | return r; |
| | 670 | } |
| | 671 | |
| | 672 | r = sd_bus_message_exit_container(reply); |
| | 673 | if (r < 0) |
| | 674 | return r; |
| | 675 | } |
| | 676 | |
| | 677 | r = sd_bus_message_exit_container(reply); |
| | 678 | if (r < 0) |
| | 679 | return r; |
| | 680 | |
| | 681 | if (need_pid && !pidref_is_set(&pidref)) |
| | 682 | return -EPROTO; |
| | 683 | } |
| | 684 | |
| | 685 | } else /* When we only need a single field, then let's use separate calls */ |
| | 686 | need_separate_calls = true; |
| | 687 | |
| | 688 | if (need_separate_calls) { |
| | 689 | if (need_pid) { |
| | 690 | uint32_t u; |
| | 691 | |
| | 692 | r = sd_bus_call_method( |
| | 693 | bus, |
| | 694 | "org.freedesktop.DBus", |
| | 695 | "/org/freedesktop/DBus", |
| | 696 | "org.freedesktop.DBus", |
| | 697 | "GetConnectionUnixProcessID", |
| | 698 | NULL, |
| | 699 | &reply, |
| | 700 | "s", |
| | 701 | unique ?: name); |
| | 702 | if (r < 0) |
| | 703 | return r; |
| | 704 | |
| | 705 | r = sd_bus_message_read(reply, "u", &u); |
| | 706 | if (r < 0) |
| | 707 | return r; |
| | 708 | |
| | 709 | if (!pidref_is_set(&pidref)) |
| | 710 | pidref = PIDREF_MAKE_FROM_PID(u); |
| | 711 | |
| | 712 | if (mask & SD_BUS_CREDS_PID) { |
| | 713 | c->pid = u; |
| | 714 | c->mask |= SD_BUS_CREDS_PID; |
| | 715 | } |
| | 716 | |
| | 717 | reply = sd_bus_message_unref(reply); |
| | 718 | } |
| | 719 | |
| | 720 | if (need_uid) { |
| | 721 | uint32_t u; |
| | 722 | |
| | 723 | r = sd_bus_call_method( |
| | 724 | bus, |
| | 725 | "org.freedesktop.DBus", |
| | 726 | "/org/freedesktop/DBus", |
| | 727 | "org.freedesktop.DBus", |
| | 728 | "GetConnectionUnixUser", |
| | 729 | NULL, |
| | 730 | &reply, |
| | 731 | "s", |
| | 732 | unique ?: name); |
| | 733 | if (r < 0) |
| | 734 | return r; |
| | 735 | |
| | 736 | r = sd_bus_message_read(reply, "u", &u); |
| | 737 | if (r < 0) |
| | 738 | return r; |
| | 739 | |
| | 740 | c->euid = u; |
| | 741 | c->mask |= SD_BUS_CREDS_EUID; |
| | 742 | |
| | 743 | reply = sd_bus_message_unref(reply); |
| | 744 | } |
| | 745 | |
| | 746 | if (need_selinux) { |
| | 747 | const void *p = NULL; |
| | 748 | size_t sz = 0; |
| | 749 | |
| | 750 | r = sd_bus_call_method( |
| | 751 | bus, |
| | 752 | "org.freedesktop.DBus", |
| | 753 | "/org/freedesktop/DBus", |
| | 754 | "org.freedesktop.DBus", |
| | 755 | "GetConnectionSELinuxSecurityContext", |
| | 756 | &error, |
| | 757 | &reply, |
| | 758 | "s", |
| | 759 | unique ?: name); |
| | 760 | if (r < 0) { |
| | 761 | if (!sd_bus_error_has_name(&error, SD_BUS_ERROR_SELINUX_SECURITY_CONTEXT_UNKNOWN)) |
| | 762 | return r; |
| | 763 | |
| | 764 | /* no data is fine */ |
| | 765 | } else { |
| | 766 | r = sd_bus_message_read_array(reply, 'y', &p, &sz); |
| | 767 | if (r < 0) |
| | 768 | return r; |
| | 769 | |
| | 770 | c->label = memdup_suffix0(p, sz); |
| | 771 | if (!c->label) |
| | 772 | return -ENOMEM; |
| | 773 | |
| | 774 | c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT; |
| | 775 | } |
| | 776 | } |
| | 777 | } |
| | 778 | |
| | 779 | if (pidref_is_set(&pidref)) { |
| | 780 | r = bus_creds_add_more(c, mask, &pidref, 0); |
| | 781 | if (r < 0 && r != -ESRCH) /* Return the error, but ignore ESRCH which just means the process is already gone */ |
| | 782 | return r; |
| | 783 | } |
| | 784 | } |
| | 785 | |
| | 786 | if (ret) |
| | 787 | *ret = TAKE_PTR(c); |
| | 788 | |
| | 789 | return 0; |
| | 790 | } |
| | 791 | |
| | 792 | static int parse_sockaddr_string(const char *t, char **ret_comm, char **ret_description) { |
| | 793 | _cleanup_free_ char *comm = NULL, *description = NULL; |
| | 794 | const char *e, *sl; |
| | 795 | |
| | 796 | assert(t); |
| | 797 | assert(ret_comm); |
| | 798 | assert(ret_description); |
| | 799 | |
| | 800 | e = strstrafter(t, "/bus/"); |
| | 801 | if (!e) { |
| | 802 | log_debug("Didn't find /bus/ substring in peer socket address, ignoring."); |
| | 803 | goto not_found; |
| | 804 | } |
| | 805 | |
| | 806 | sl = strchr(e, '/'); |
| | 807 | if (!sl) { |
| | 808 | log_debug("Didn't find / substring after /bus/ in peer socket address, ignoring."); |
| | 809 | goto not_found; |
| | 810 | } |
| | 811 | |
| | 812 | if (sl - e > 0) { |
| | 813 | comm = strndup(e, sl - e); |
| | 814 | if (!comm) |
| | 815 | return -ENOMEM; |
| | 816 | } |
| | 817 | |
| | 818 | sl++; |
| | 819 | if (!isempty(sl)) { |
| | 820 | description = strdup(sl); |
| | 821 | if (!description) |
| | 822 | return -ENOMEM; |
| | 823 | } |
| | 824 | |
| | 825 | *ret_comm = TAKE_PTR(comm); |
| | 826 | *ret_description = TAKE_PTR(description); |
| | 827 | return 0; |
| | 828 | |
| | 829 | not_found: |
| | 830 | *ret_comm = *ret_description = NULL; |
| | 831 | return 0; |
| | 832 | } |
| | 833 | |
| | 834 | _public_ int sd_bus_get_owner_creds(sd_bus *bus, uint64_t mask, sd_bus_creds **ret) { |
| | 835 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *c = NULL; |
| | 836 | _cleanup_(pidref_done) PidRef pidref = PIDREF_NULL; |
| | 837 | bool do_label, do_groups, do_sockaddr_peer, do_pidfd; |
| | 838 | int r; |
| | 839 | |
| | 840 | assert_return(bus, -EINVAL); |
| | 841 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 842 | assert_return((mask & ~SD_BUS_CREDS_AUGMENT) <= _SD_BUS_CREDS_ALL, -EOPNOTSUPP); |
| | 843 | assert_return(ret, -EINVAL); |
| | 844 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 845 | |
| | 846 | if (!BUS_IS_OPEN(bus->state)) |
| | 847 | return -ENOTCONN; |
| | 848 | |
| | 849 | if (!bus->is_local) |
| | 850 | mask &= ~SD_BUS_CREDS_AUGMENT; |
| | 851 | |
| | 852 | do_label = bus->label && (mask & SD_BUS_CREDS_SELINUX_CONTEXT); |
| | 853 | do_groups = bus->n_groups != SIZE_MAX && (mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS); |
| | 854 | do_sockaddr_peer = bus->sockaddr_size_peer >= offsetof(struct sockaddr_un, sun_path) + 1 && |
| | 855 | bus->sockaddr_peer.sa.sa_family == AF_UNIX && |
| | 856 | bus->sockaddr_peer.un.sun_path[0] == 0; |
| | 857 | do_pidfd = bus->pidfd >= 0 && (mask & SD_BUS_CREDS_PIDFD); |
| | 858 | |
| | 859 | /* Avoid allocating anything if we have no chance of returning useful data */ |
| | 860 | if (!bus->ucred_valid && !do_label && !do_groups && !do_sockaddr_peer && !do_pidfd) |
| | 861 | return -ENODATA; |
| | 862 | |
| | 863 | c = bus_creds_new(); |
| | 864 | if (!c) |
| | 865 | return -ENOMEM; |
| | 866 | |
| | 867 | if (bus->ucred_valid) { |
| | 868 | if (pid_is_valid(bus->ucred.pid)) { |
| | 869 | c->pid = bus->ucred.pid; |
| | 870 | c->mask |= SD_BUS_CREDS_PID & mask; |
| | 871 | |
| | 872 | pidref = PIDREF_MAKE_FROM_PID(c->pid); |
| | 873 | } |
| | 874 | |
| | 875 | if (uid_is_valid(bus->ucred.uid)) { |
| | 876 | c->euid = bus->ucred.uid; |
| | 877 | c->mask |= SD_BUS_CREDS_EUID & mask; |
| | 878 | } |
| | 879 | |
| | 880 | if (gid_is_valid(bus->ucred.gid)) { |
| | 881 | c->egid = bus->ucred.gid; |
| | 882 | c->mask |= SD_BUS_CREDS_EGID & mask; |
| | 883 | } |
| | 884 | } |
| | 885 | |
| | 886 | if (do_label) { |
| | 887 | c->label = strdup(bus->label); |
| | 888 | if (!c->label) |
| | 889 | return -ENOMEM; |
| | 890 | |
| | 891 | c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT; |
| | 892 | } |
| | 893 | |
| | 894 | if (do_groups) { |
| | 895 | c->supplementary_gids = newdup(gid_t, bus->groups, bus->n_groups); |
| | 896 | if (!c->supplementary_gids) |
| | 897 | return -ENOMEM; |
| | 898 | |
| | 899 | c->n_supplementary_gids = bus->n_groups; |
| | 900 | |
| | 901 | c->mask |= SD_BUS_CREDS_SUPPLEMENTARY_GIDS; |
| | 902 | } |
| | 903 | |
| | 904 | if (do_sockaddr_peer) { |
| | 905 | _cleanup_free_ char *t = NULL; |
| | 906 | |
| | 907 | assert(bus->sockaddr_size_peer >= offsetof(struct sockaddr_un, sun_path) + 1); |
| | 908 | assert(bus->sockaddr_peer.sa.sa_family == AF_UNIX); |
| | 909 | assert(bus->sockaddr_peer.un.sun_path[0] == 0); |
| | 910 | |
| | 911 | /* So this is an abstract namespace socket, good. Now let's find the data we are interested in */ |
| | 912 | r = make_cstring(bus->sockaddr_peer.un.sun_path + 1, |
| | 913 | bus->sockaddr_size_peer - offsetof(struct sockaddr_un, sun_path) - 1, |
| | 914 | MAKE_CSTRING_ALLOW_TRAILING_NUL, |
| | 915 | &t); |
| | 916 | if (r == -ENOMEM) |
| | 917 | return r; |
| | 918 | if (r < 0) |
| | 919 | log_debug_errno(r, "Can't extract string from peer socket address, ignoring: %m"); |
| | 920 | else { |
| | 921 | r = parse_sockaddr_string(t, &c->comm, &c->description); |
| | 922 | if (r < 0) |
| | 923 | return r; |
| | 924 | |
| | 925 | if (c->comm) |
| | 926 | c->mask |= SD_BUS_CREDS_COMM & mask; |
| | 927 | |
| | 928 | if (c->description) |
| | 929 | c->mask |= SD_BUS_CREDS_DESCRIPTION & mask; |
| | 930 | } |
| | 931 | } |
| | 932 | |
| | 933 | if (do_pidfd) { |
| | 934 | c->pidfd = fcntl(bus->pidfd, F_DUPFD_CLOEXEC, 3); |
| | 935 | if (c->pidfd < 0) |
| | 936 | return -errno; |
| | 937 | |
| | 938 | pidref_done(&pidref); |
| | 939 | r = pidref_set_pidfd(&pidref, bus->pidfd); |
| | 940 | if (r < 0) |
| | 941 | return r; |
| | 942 | |
| | 943 | c->mask |= SD_BUS_CREDS_PIDFD; |
| | 944 | } |
| | 945 | |
| | 946 | r = bus_creds_add_more(c, mask, &pidref, 0); |
| | 947 | if (r < 0 && r != -ESRCH) /* If the process vanished, then don't complain, just return what we got */ |
| | 948 | return r; |
| | 949 | |
| | 950 | *ret = TAKE_PTR(c); |
| | 951 | |
| | 952 | return 0; |
| | 953 | } |
| | 954 | |
| | 955 | #define append_eavesdrop(bus, m) \ |
| | 956 | ((bus)->is_monitor \ |
| | 957 | ? (isempty(m) ? "eavesdrop='true'" : strjoina((m), ",eavesdrop='true'")) \ |
| | 958 | : (m)) |
| | 959 | |
| | 960 | int bus_add_match_internal( |
| | 961 | sd_bus *bus, |
| | 962 | const char *match, |
| | 963 | uint64_t timeout_usec, |
| | 964 | uint64_t *ret_counter) { |
| | 965 | |
| | 966 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; |
| | 967 | const char *e; |
| | 968 | int r; |
| | 969 | |
| | 970 | assert(bus); |
| | 971 | |
| | 972 | if (!bus->bus_client) |
| | 973 | return -EINVAL; |
| | 974 | |
| | 975 | e = append_eavesdrop(bus, match); |
| | 976 | |
| | 977 | r = sd_bus_message_new_method_call( |
| | 978 | bus, |
| | 979 | &m, |
| | 980 | "org.freedesktop.DBus", |
| | 981 | "/org/freedesktop/DBus", |
| | 982 | "org.freedesktop.DBus", |
| | 983 | "AddMatch"); |
| | 984 | if (r < 0) |
| | 985 | return r; |
| | 986 | |
| | 987 | r = sd_bus_message_append(m, "s", e); |
| | 988 | if (r < 0) |
| | 989 | return r; |
| | 990 | |
| | 991 | r = sd_bus_call( |
| | 992 | bus, |
| | 993 | m, |
| | 994 | timeout_usec, |
| | 995 | NULL, |
| | 996 | &reply); |
| | 997 | if (r < 0) |
| | 998 | return r; |
| | 999 | |
| | 1000 | /* If the caller asked for it, return the read counter of the reply */ |
| | 1001 | if (ret_counter) |
| | 1002 | *ret_counter = reply->read_counter; |
| | 1003 | |
| | 1004 | return r; |
| | 1005 | } |
| | 1006 | |
| | 1007 | int bus_add_match_internal_async( |
| | 1008 | sd_bus *bus, |
| | 1009 | sd_bus_slot **ret_slot, |
| | 1010 | const char *match, |
| | 1011 | sd_bus_message_handler_t callback, |
| | 1012 | void *userdata, |
| | 1013 | uint64_t timeout_usec) { |
| | 1014 | |
| | 1015 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
| | 1016 | const char *e; |
| | 1017 | int r; |
| | 1018 | |
| | 1019 | assert(bus); |
| | 1020 | |
| | 1021 | if (!bus->bus_client) |
| | 1022 | return -EINVAL; |
| | 1023 | |
| | 1024 | e = append_eavesdrop(bus, match); |
| | 1025 | |
| | 1026 | r = sd_bus_message_new_method_call( |
| | 1027 | bus, |
| | 1028 | &m, |
| | 1029 | "org.freedesktop.DBus", |
| | 1030 | "/org/freedesktop/DBus", |
| | 1031 | "org.freedesktop.DBus", |
| | 1032 | "AddMatch"); |
| | 1033 | if (r < 0) |
| | 1034 | return r; |
| | 1035 | |
| | 1036 | r = sd_bus_message_append(m, "s", e); |
| | 1037 | if (r < 0) |
| | 1038 | return r; |
| | 1039 | |
| | 1040 | return sd_bus_call_async( |
| | 1041 | bus, |
| | 1042 | ret_slot, |
| | 1043 | m, |
| | 1044 | callback, |
| | 1045 | userdata, |
| | 1046 | timeout_usec); |
| | 1047 | } |
| | 1048 | |
| | 1049 | int bus_remove_match_internal( |
| | 1050 | sd_bus *bus, |
| | 1051 | const char *match) { |
| | 1052 | |
| | 1053 | const char *e; |
| | 1054 | |
| | 1055 | assert(bus); |
| | 1056 | assert(match); |
| | 1057 | |
| | 1058 | if (!bus->bus_client) |
| | 1059 | return -EINVAL; |
| | 1060 | |
| | 1061 | e = append_eavesdrop(bus, match); |
| | 1062 | |
| | 1063 | /* Fire and forget */ |
| | 1064 | |
| | 1065 | return sd_bus_call_method_async( |
| | 1066 | bus, |
| | 1067 | NULL, |
| | 1068 | "org.freedesktop.DBus", |
| | 1069 | "/org/freedesktop/DBus", |
| | 1070 | "org.freedesktop.DBus", |
| | 1071 | "RemoveMatch", |
| | 1072 | NULL, |
| | 1073 | NULL, |
| | 1074 | "s", |
| | 1075 | e); |
| | 1076 | } |
| | 1077 | |
| | 1078 | _public_ int sd_bus_get_name_machine_id(sd_bus *bus, const char *name, sd_id128_t *ret) { |
| | 1079 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; |
| | 1080 | const char *mid; |
| | 1081 | int r; |
| | 1082 | |
| | 1083 | assert_return(bus, -EINVAL); |
| | 1084 | assert_return(bus = bus_resolve(bus), -ENOPKG); |
| | 1085 | assert_return(name, -EINVAL); |
| | 1086 | assert_return(ret, -EINVAL); |
| | 1087 | assert_return(!bus_origin_changed(bus), -ECHILD); |
| | 1088 | assert_return(service_name_is_valid(name), -EINVAL); |
| | 1089 | |
| | 1090 | if (!bus->bus_client) |
| | 1091 | return -EINVAL; |
| | 1092 | |
| | 1093 | if (!BUS_IS_OPEN(bus->state)) |
| | 1094 | return -ENOTCONN; |
| | 1095 | |
| | 1096 | if (streq_ptr(name, bus->unique_name)) |
| | 1097 | return sd_id128_get_machine(ret); |
| | 1098 | |
| | 1099 | r = sd_bus_message_new_method_call( |
| | 1100 | bus, |
| | 1101 | &m, |
| | 1102 | name, |
| | 1103 | "/", |
| | 1104 | "org.freedesktop.DBus.Peer", |
| | 1105 | "GetMachineId"); |
| | 1106 | if (r < 0) |
| | 1107 | return r; |
| | 1108 | |
| | 1109 | r = sd_bus_message_set_auto_start(m, false); |
| | 1110 | if (r < 0) |
| | 1111 | return r; |
| | 1112 | |
| | 1113 | r = sd_bus_call(bus, m, 0, NULL, &reply); |
| | 1114 | if (r < 0) |
| | 1115 | return r; |
| | 1116 | |
| | 1117 | r = sd_bus_message_read(reply, "s", &mid); |
| | 1118 | if (r < 0) |
| | 1119 | return r; |
| | 1120 | |
| | 1121 | return sd_id128_from_string(mid, ret); |
| | 1122 | } |
projects / thirdparty / systemd.git / blame_incremental