| 1 | /* |
| 2 | * Copyright (C) 2019 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only |
| 5 | */ |
| 6 | |
| 7 | #include <common/defaults.hpp> |
| 8 | #include <common/error.hpp> |
| 9 | #include <common/macros.hpp> |
| 10 | #include <common/payload-view.hpp> |
| 11 | #include <common/payload.hpp> |
| 12 | #include <common/uri.hpp> |
| 13 | #include <lttng/session-descriptor-internal.hpp> |
| 14 | #include <lttng/trace-format-descriptor-internal.hpp> |
| 15 | #include <lttng/trace-format-descriptor.h> |
| 16 | #include <memory> |
| 17 | #include <stdio.h> |
| 18 | #include <time.h> |
| 19 | |
| 20 | namespace { |
| 21 | struct lttng_session_descriptor_network_location { |
| 22 | struct lttng_uri *control; |
| 23 | struct lttng_uri *data; |
| 24 | }; |
| 25 | } /* namespace */ |
| 26 | |
| 27 | struct lttng_session_descriptor { |
| 28 | enum lttng_session_descriptor_type type; |
| 29 | /* |
| 30 | * If an output type that is not OUTPUT_TYPE_NONE is specified, |
| 31 | * it means that an output of that type must be generated at |
| 32 | * session-creation time. |
| 33 | */ |
| 34 | enum lttng_session_descriptor_output_type output_type; |
| 35 | char *name; |
| 36 | union { |
| 37 | struct lttng_session_descriptor_network_location network; |
| 38 | struct lttng_uri *local; |
| 39 | } output; |
| 40 | |
| 41 | lttng::trace_format_descriptor *format_descriptor; |
| 42 | }; |
| 43 | |
| 44 | namespace { |
| 45 | struct lttng_session_descriptor_snapshot { |
| 46 | struct lttng_session_descriptor base; |
| 47 | /* |
| 48 | * Assumes at-most one snapshot output is supported. Uses |
| 49 | * the output field of the base class. |
| 50 | */ |
| 51 | }; |
| 52 | |
| 53 | struct lttng_session_descriptor_live { |
| 54 | struct lttng_session_descriptor base; |
| 55 | unsigned long long live_timer_us; |
| 56 | }; |
| 57 | |
| 58 | struct lttng_session_descriptor_comm { |
| 59 | /* enum lttng_session_descriptor_type */ |
| 60 | uint8_t type; |
| 61 | /* enum lttng_session_descriptor_output_type */ |
| 62 | uint8_t output_type; |
| 63 | /* Includes trailing null. */ |
| 64 | uint32_t name_len; |
| 65 | /* Number of URIs */ |
| 66 | uint8_t uri_count; |
| 67 | /* Size of lttng_trace_format_descriptor */ |
| 68 | uint32_t trace_format_len; |
| 69 | /* Name follows, followed by URIs, followed by lttng_trace_format */ |
| 70 | } LTTNG_PACKED; |
| 71 | |
| 72 | struct lttng_session_descriptor_live_comm { |
| 73 | struct lttng_session_descriptor_comm base; |
| 74 | /* Live-specific parameters. */ |
| 75 | uint64_t live_timer_us; |
| 76 | } LTTNG_PACKED; |
| 77 | } /* namespace */ |
| 78 | |
| 79 | static |
| 80 | struct lttng_uri *uri_copy(const struct lttng_uri *uri) |
| 81 | { |
| 82 | struct lttng_uri *new_uri = NULL; |
| 83 | |
| 84 | if (!uri) { |
| 85 | goto end; |
| 86 | } |
| 87 | |
| 88 | new_uri = zmalloc<lttng_uri>(); |
| 89 | if (!new_uri) { |
| 90 | goto end; |
| 91 | } |
| 92 | memcpy(new_uri, uri, sizeof(*new_uri)); |
| 93 | end: |
| 94 | return new_uri; |
| 95 | } |
| 96 | |
| 97 | static |
| 98 | struct lttng_uri *uri_from_path(const char *path) |
| 99 | { |
| 100 | struct lttng_uri *uris = NULL; |
| 101 | ssize_t uri_count; |
| 102 | char local_protocol_string[LTTNG_PATH_MAX + sizeof("file://")] = |
| 103 | "file://"; |
| 104 | |
| 105 | if (strlen(path) >= LTTNG_PATH_MAX) { |
| 106 | goto end; |
| 107 | } |
| 108 | |
| 109 | if (path[0] != '/') { |
| 110 | /* Not an absolute path. */ |
| 111 | goto end; |
| 112 | } |
| 113 | |
| 114 | strncat(local_protocol_string, path, LTTNG_PATH_MAX); |
| 115 | uri_count = uri_parse(local_protocol_string, &uris); |
| 116 | if (uri_count != 1) { |
| 117 | goto error; |
| 118 | } |
| 119 | if (uris[0].dtype != LTTNG_DST_PATH) { |
| 120 | goto error; |
| 121 | } |
| 122 | |
| 123 | end: |
| 124 | return uris; |
| 125 | error: |
| 126 | free(uris); |
| 127 | return NULL; |
| 128 | } |
| 129 | |
| 130 | static |
| 131 | void network_location_fini( |
| 132 | struct lttng_session_descriptor_network_location *location) |
| 133 | { |
| 134 | free(location->control); |
| 135 | free(location->data); |
| 136 | } |
| 137 | |
| 138 | /* Assumes ownership of control and data. */ |
| 139 | static |
| 140 | int network_location_set_from_lttng_uris( |
| 141 | struct lttng_session_descriptor_network_location *location, |
| 142 | struct lttng_uri *control, struct lttng_uri *data) |
| 143 | { |
| 144 | int ret = 0; |
| 145 | |
| 146 | if (!control && !data) { |
| 147 | goto end; |
| 148 | } |
| 149 | |
| 150 | if (!(control && data)) { |
| 151 | /* None or both must be set. */ |
| 152 | ret = -1; |
| 153 | goto end; |
| 154 | } |
| 155 | |
| 156 | if (control->stype != LTTNG_STREAM_CONTROL || |
| 157 | data->stype != LTTNG_STREAM_DATA) { |
| 158 | ret = -1; |
| 159 | goto end; |
| 160 | } |
| 161 | |
| 162 | free(location->control); |
| 163 | free(location->data); |
| 164 | location->control = control; |
| 165 | location->data = data; |
| 166 | control = NULL; |
| 167 | data = NULL; |
| 168 | end: |
| 169 | free(control); |
| 170 | free(data); |
| 171 | return ret; |
| 172 | } |
| 173 | |
| 174 | static |
| 175 | int network_location_set_from_uri_strings( |
| 176 | struct lttng_session_descriptor_network_location *location, |
| 177 | const char *control, const char *data) |
| 178 | { |
| 179 | int ret = 0; |
| 180 | ssize_t uri_count; |
| 181 | struct lttng_uri *parsed_uris = NULL; |
| 182 | struct lttng_uri *control_uri = NULL; |
| 183 | struct lttng_uri *data_uri = NULL; |
| 184 | |
| 185 | uri_count = uri_parse_str_urls(control, data, &parsed_uris); |
| 186 | if (uri_count != 2 && uri_count != 0) { |
| 187 | ret = -1; |
| 188 | goto end; |
| 189 | } |
| 190 | |
| 191 | /* |
| 192 | * uri_parse_str_urls returns a contiguous array of lttng_uris whereas |
| 193 | * session descriptors expect individually allocated lttng_uris. |
| 194 | */ |
| 195 | if (uri_count == 2) { |
| 196 | control_uri = zmalloc<lttng_uri>(); |
| 197 | data_uri = zmalloc<lttng_uri>(); |
| 198 | if (!control_uri || !data_uri) { |
| 199 | ret = -1; |
| 200 | goto end; |
| 201 | } |
| 202 | memcpy(control_uri, &parsed_uris[0], sizeof(*control_uri)); |
| 203 | memcpy(data_uri, &parsed_uris[1], sizeof(*data_uri)); |
| 204 | } |
| 205 | |
| 206 | /* Ownership of control and data uris is transferred. */ |
| 207 | ret = network_location_set_from_lttng_uris( |
| 208 | location, |
| 209 | control_uri, |
| 210 | data_uri); |
| 211 | control_uri = NULL; |
| 212 | data_uri = NULL; |
| 213 | end: |
| 214 | free(parsed_uris); |
| 215 | free(control_uri); |
| 216 | free(data_uri); |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | struct lttng_session_descriptor * |
| 221 | lttng_session_descriptor_create(const char *name) |
| 222 | { |
| 223 | struct lttng_session_descriptor *descriptor; |
| 224 | |
| 225 | descriptor = zmalloc<lttng_session_descriptor>(); |
| 226 | if (!descriptor) { |
| 227 | goto error; |
| 228 | } |
| 229 | |
| 230 | descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR; |
| 231 | descriptor->output_type = |
| 232 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE; |
| 233 | if (lttng_session_descriptor_set_session_name(descriptor, name)) { |
| 234 | goto error; |
| 235 | } |
| 236 | |
| 237 | /* Default to ctf1 trace format */ |
| 238 | try { |
| 239 | descriptor->format_descriptor = new lttng::trace_format_descriptor_ctf1(); |
| 240 | } catch (const std::exception& ex) { |
| 241 | descriptor->format_descriptor = nullptr; |
| 242 | goto error; |
| 243 | } |
| 244 | |
| 245 | return descriptor; |
| 246 | error: |
| 247 | lttng_session_descriptor_destroy(descriptor); |
| 248 | return NULL; |
| 249 | } |
| 250 | |
| 251 | /* Ownership of uri is transferred. */ |
| 252 | static |
| 253 | struct lttng_session_descriptor * |
| 254 | _lttng_session_descriptor_local_create(const char *name, |
| 255 | struct lttng_uri *uri) |
| 256 | { |
| 257 | struct lttng_session_descriptor *descriptor; |
| 258 | |
| 259 | descriptor = lttng_session_descriptor_create(name); |
| 260 | if (!descriptor) { |
| 261 | goto error; |
| 262 | } |
| 263 | descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR; |
| 264 | descriptor->output_type = |
| 265 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL; |
| 266 | if (uri) { |
| 267 | if (uri->dtype != LTTNG_DST_PATH) { |
| 268 | goto error; |
| 269 | } |
| 270 | descriptor->output.local = uri; |
| 271 | uri = NULL; |
| 272 | } |
| 273 | return descriptor; |
| 274 | error: |
| 275 | free(uri); |
| 276 | lttng_session_descriptor_destroy(descriptor); |
| 277 | return NULL; |
| 278 | } |
| 279 | |
| 280 | struct lttng_session_descriptor * |
| 281 | lttng_session_descriptor_local_create(const char *name, const char *path) |
| 282 | { |
| 283 | struct lttng_uri *uri = NULL; |
| 284 | struct lttng_session_descriptor *descriptor; |
| 285 | |
| 286 | if (path) { |
| 287 | uri = uri_from_path(path); |
| 288 | if (!uri) { |
| 289 | goto error; |
| 290 | } |
| 291 | } |
| 292 | descriptor = _lttng_session_descriptor_local_create(name, uri); |
| 293 | return descriptor; |
| 294 | error: |
| 295 | return NULL; |
| 296 | } |
| 297 | |
| 298 | /* Assumes the ownership of both uris. */ |
| 299 | static |
| 300 | struct lttng_session_descriptor * |
| 301 | _lttng_session_descriptor_network_create(const char *name, |
| 302 | struct lttng_uri *control, struct lttng_uri *data) |
| 303 | { |
| 304 | int ret; |
| 305 | struct lttng_session_descriptor *descriptor; |
| 306 | |
| 307 | descriptor = lttng_session_descriptor_create(name); |
| 308 | if (!descriptor) { |
| 309 | goto error; |
| 310 | } |
| 311 | |
| 312 | descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR; |
| 313 | descriptor->output_type = LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK; |
| 314 | /* Assumes the ownership of both uris. */ |
| 315 | ret = network_location_set_from_lttng_uris(&descriptor->output.network, |
| 316 | control, data); |
| 317 | control = NULL; |
| 318 | data = NULL; |
| 319 | if (ret) { |
| 320 | goto error; |
| 321 | } |
| 322 | return descriptor; |
| 323 | error: |
| 324 | lttng_session_descriptor_destroy(descriptor); |
| 325 | free(control); |
| 326 | free(data); |
| 327 | return NULL; |
| 328 | } |
| 329 | |
| 330 | struct lttng_session_descriptor * |
| 331 | lttng_session_descriptor_network_create(const char *name, |
| 332 | const char *control_url, const char *data_url) |
| 333 | { |
| 334 | int ret; |
| 335 | struct lttng_session_descriptor *descriptor; |
| 336 | |
| 337 | descriptor = _lttng_session_descriptor_network_create(name, |
| 338 | NULL, NULL); |
| 339 | if (!descriptor) { |
| 340 | goto error; |
| 341 | } |
| 342 | |
| 343 | ret = network_location_set_from_uri_strings(&descriptor->output.network, |
| 344 | control_url, data_url); |
| 345 | if (ret) { |
| 346 | goto error; |
| 347 | } |
| 348 | return descriptor; |
| 349 | error: |
| 350 | lttng_session_descriptor_destroy(descriptor); |
| 351 | return NULL; |
| 352 | } |
| 353 | |
| 354 | static |
| 355 | struct lttng_session_descriptor_snapshot * |
| 356 | _lttng_session_descriptor_snapshot_create(const char *name) |
| 357 | { |
| 358 | struct lttng_session_descriptor_snapshot *descriptor; |
| 359 | |
| 360 | descriptor = zmalloc<lttng_session_descriptor_snapshot>(); |
| 361 | if (!descriptor) { |
| 362 | goto error; |
| 363 | } |
| 364 | |
| 365 | descriptor->base.type = LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT; |
| 366 | descriptor->base.output_type = |
| 367 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE; |
| 368 | if (lttng_session_descriptor_set_session_name(&descriptor->base, |
| 369 | name)) { |
| 370 | goto error; |
| 371 | } |
| 372 | |
| 373 | /* Default to ctf1 trace format */ |
| 374 | try { |
| 375 | descriptor->base.format_descriptor = new lttng::trace_format_descriptor_ctf1(); |
| 376 | } catch (const std::exception& ex) { |
| 377 | descriptor->base.format_descriptor = nullptr; |
| 378 | goto error; |
| 379 | } |
| 380 | |
| 381 | return descriptor; |
| 382 | error: |
| 383 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 384 | return NULL; |
| 385 | } |
| 386 | |
| 387 | /* Ownership of control and data is transferred. */ |
| 388 | static |
| 389 | struct lttng_session_descriptor_snapshot * |
| 390 | _lttng_session_descriptor_snapshot_network_create(const char *name, |
| 391 | struct lttng_uri *control, struct lttng_uri *data) |
| 392 | { |
| 393 | int ret; |
| 394 | struct lttng_session_descriptor_snapshot *descriptor; |
| 395 | |
| 396 | descriptor = _lttng_session_descriptor_snapshot_create(name); |
| 397 | if (!descriptor) { |
| 398 | goto error; |
| 399 | } |
| 400 | |
| 401 | descriptor->base.output_type = |
| 402 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK; |
| 403 | /* Ownership of control and data is transferred. */ |
| 404 | ret = network_location_set_from_lttng_uris( |
| 405 | &descriptor->base.output.network, |
| 406 | control, data); |
| 407 | control = NULL; |
| 408 | data = NULL; |
| 409 | if (ret) { |
| 410 | goto error; |
| 411 | } |
| 412 | return descriptor; |
| 413 | error: |
| 414 | free(control); |
| 415 | free(data); |
| 416 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 417 | return NULL; |
| 418 | } |
| 419 | |
| 420 | struct lttng_session_descriptor * |
| 421 | lttng_session_descriptor_snapshot_create(const char *name) |
| 422 | { |
| 423 | struct lttng_session_descriptor_snapshot *descriptor; |
| 424 | |
| 425 | descriptor = _lttng_session_descriptor_snapshot_create(name); |
| 426 | return descriptor ? &descriptor->base : NULL; |
| 427 | } |
| 428 | |
| 429 | struct lttng_session_descriptor * |
| 430 | lttng_session_descriptor_snapshot_network_create(const char *name, |
| 431 | const char *control_url, const char *data_url) |
| 432 | { |
| 433 | int ret; |
| 434 | struct lttng_session_descriptor_snapshot *descriptor; |
| 435 | |
| 436 | descriptor = _lttng_session_descriptor_snapshot_network_create(name, |
| 437 | NULL, NULL); |
| 438 | if (!descriptor) { |
| 439 | goto error; |
| 440 | } |
| 441 | |
| 442 | ret = network_location_set_from_uri_strings( |
| 443 | &descriptor->base.output.network, |
| 444 | control_url, data_url); |
| 445 | if (ret) { |
| 446 | goto error; |
| 447 | } |
| 448 | return &descriptor->base; |
| 449 | error: |
| 450 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 451 | return NULL; |
| 452 | } |
| 453 | |
| 454 | /* Ownership of uri is transferred. */ |
| 455 | static |
| 456 | struct lttng_session_descriptor_snapshot * |
| 457 | _lttng_session_descriptor_snapshot_local_create(const char *name, |
| 458 | struct lttng_uri *uri) |
| 459 | { |
| 460 | struct lttng_session_descriptor_snapshot *descriptor; |
| 461 | |
| 462 | descriptor = _lttng_session_descriptor_snapshot_create(name); |
| 463 | if (!descriptor) { |
| 464 | goto error; |
| 465 | } |
| 466 | descriptor->base.output_type = |
| 467 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL; |
| 468 | if (uri) { |
| 469 | if (uri->dtype != LTTNG_DST_PATH) { |
| 470 | goto error; |
| 471 | } |
| 472 | descriptor->base.output.local = uri; |
| 473 | uri = NULL; |
| 474 | } |
| 475 | return descriptor; |
| 476 | error: |
| 477 | free(uri); |
| 478 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 479 | return NULL; |
| 480 | } |
| 481 | |
| 482 | struct lttng_session_descriptor * |
| 483 | lttng_session_descriptor_snapshot_local_create(const char *name, |
| 484 | const char *path) |
| 485 | { |
| 486 | struct lttng_uri *path_uri = NULL; |
| 487 | struct lttng_session_descriptor_snapshot *descriptor; |
| 488 | |
| 489 | if (path) { |
| 490 | path_uri = uri_from_path(path); |
| 491 | if (!path_uri) { |
| 492 | goto error; |
| 493 | } |
| 494 | } |
| 495 | descriptor = _lttng_session_descriptor_snapshot_local_create(name, |
| 496 | path_uri); |
| 497 | return descriptor ? &descriptor->base : NULL; |
| 498 | error: |
| 499 | return NULL; |
| 500 | } |
| 501 | |
| 502 | static |
| 503 | struct lttng_session_descriptor_live * |
| 504 | _lttng_session_descriptor_live_create(const char *name, |
| 505 | unsigned long long live_timer_interval_us) |
| 506 | { |
| 507 | struct lttng_session_descriptor_live *descriptor = NULL; |
| 508 | |
| 509 | if (live_timer_interval_us == 0) { |
| 510 | goto error; |
| 511 | } |
| 512 | descriptor = zmalloc<lttng_session_descriptor_live>(); |
| 513 | if (!descriptor) { |
| 514 | goto error; |
| 515 | } |
| 516 | |
| 517 | descriptor->base.type = LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE; |
| 518 | descriptor->base.output_type = |
| 519 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE; |
| 520 | |
| 521 | descriptor->live_timer_us = live_timer_interval_us; |
| 522 | if (lttng_session_descriptor_set_session_name(&descriptor->base, |
| 523 | name)) { |
| 524 | goto error; |
| 525 | } |
| 526 | |
| 527 | /* Default to ctf1 trace format */ |
| 528 | try { |
| 529 | descriptor->base.format_descriptor = new lttng::trace_format_descriptor_ctf1(); |
| 530 | } catch (const std::exception& ex) { |
| 531 | descriptor->base.format_descriptor = nullptr; |
| 532 | goto error; |
| 533 | } |
| 534 | |
| 535 | return descriptor; |
| 536 | error: |
| 537 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 538 | return NULL; |
| 539 | } |
| 540 | |
| 541 | /* Ownership of control and data is transferred. */ |
| 542 | static |
| 543 | struct lttng_session_descriptor_live * |
| 544 | _lttng_session_descriptor_live_network_create( |
| 545 | const char *name, |
| 546 | struct lttng_uri *control, struct lttng_uri *data, |
| 547 | unsigned long long live_timer_interval_us) |
| 548 | { |
| 549 | int ret; |
| 550 | struct lttng_session_descriptor_live *descriptor; |
| 551 | |
| 552 | descriptor = _lttng_session_descriptor_live_create(name, |
| 553 | live_timer_interval_us); |
| 554 | if (!descriptor) { |
| 555 | goto error; |
| 556 | } |
| 557 | |
| 558 | descriptor->base.output_type = |
| 559 | LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK; |
| 560 | |
| 561 | /* Ownerwhip of control and data is transferred. */ |
| 562 | ret = network_location_set_from_lttng_uris( |
| 563 | &descriptor->base.output.network, |
| 564 | control, data); |
| 565 | control = NULL; |
| 566 | data = NULL; |
| 567 | if (ret) { |
| 568 | goto error; |
| 569 | } |
| 570 | return descriptor; |
| 571 | error: |
| 572 | free(control); |
| 573 | free(data); |
| 574 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 575 | return NULL; |
| 576 | } |
| 577 | |
| 578 | struct lttng_session_descriptor * |
| 579 | lttng_session_descriptor_live_create( |
| 580 | const char *name, |
| 581 | unsigned long long live_timer_us) |
| 582 | { |
| 583 | struct lttng_session_descriptor_live *descriptor; |
| 584 | |
| 585 | descriptor = _lttng_session_descriptor_live_create(name, live_timer_us); |
| 586 | |
| 587 | return descriptor ? &descriptor->base : NULL; |
| 588 | } |
| 589 | |
| 590 | struct lttng_session_descriptor * |
| 591 | lttng_session_descriptor_live_network_create( |
| 592 | const char *name, |
| 593 | const char *control_url, const char *data_url, |
| 594 | unsigned long long live_timer_us) |
| 595 | { |
| 596 | int ret; |
| 597 | struct lttng_session_descriptor_live *descriptor; |
| 598 | |
| 599 | descriptor = _lttng_session_descriptor_live_network_create(name, |
| 600 | NULL, NULL, live_timer_us); |
| 601 | if (!descriptor) { |
| 602 | goto error; |
| 603 | } |
| 604 | |
| 605 | ret = network_location_set_from_uri_strings( |
| 606 | &descriptor->base.output.network, |
| 607 | control_url, data_url); |
| 608 | if (ret) { |
| 609 | goto error; |
| 610 | } |
| 611 | return &descriptor->base; |
| 612 | error: |
| 613 | lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL); |
| 614 | return NULL; |
| 615 | } |
| 616 | |
| 617 | void lttng_session_descriptor_destroy( |
| 618 | struct lttng_session_descriptor *descriptor) |
| 619 | { |
| 620 | if (!descriptor) { |
| 621 | return; |
| 622 | } |
| 623 | |
| 624 | switch (descriptor->output_type) { |
| 625 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 626 | break; |
| 627 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 628 | free(descriptor->output.local); |
| 629 | break; |
| 630 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 631 | network_location_fini(&descriptor->output.network); |
| 632 | break; |
| 633 | default: |
| 634 | abort(); |
| 635 | } |
| 636 | |
| 637 | delete (descriptor->format_descriptor); |
| 638 | free(descriptor->name); |
| 639 | free(descriptor); |
| 640 | } |
| 641 | |
| 642 | ssize_t lttng_session_descriptor_create_from_buffer( |
| 643 | const struct lttng_buffer_view *payload, |
| 644 | struct lttng_session_descriptor **descriptor) |
| 645 | { |
| 646 | int i; |
| 647 | ssize_t offset = 0, ret; |
| 648 | struct lttng_buffer_view current_view; |
| 649 | |
| 650 | const char *name = NULL; |
| 651 | const struct lttng_session_descriptor_comm *base_header; |
| 652 | size_t max_expected_uri_count; |
| 653 | uint64_t live_timer_us = 0; |
| 654 | struct lttng_uri *uris[2] = {}; |
| 655 | enum lttng_session_descriptor_type type; |
| 656 | enum lttng_session_descriptor_output_type output_type; |
| 657 | lttng::trace_format_descriptor::uptr trace_format; |
| 658 | |
| 659 | current_view = lttng_buffer_view_from_view(payload, offset, |
| 660 | sizeof(*base_header)); |
| 661 | if (!lttng_buffer_view_is_valid(¤t_view)) { |
| 662 | ret = -1; |
| 663 | goto end; |
| 664 | } |
| 665 | |
| 666 | base_header = (typeof(base_header)) current_view.data; |
| 667 | switch (base_header->type) { |
| 668 | case LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR: |
| 669 | case LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT: |
| 670 | break; |
| 671 | case LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE: |
| 672 | { |
| 673 | const struct lttng_session_descriptor_live_comm *live_header; |
| 674 | |
| 675 | current_view = lttng_buffer_view_from_view(payload, offset, |
| 676 | sizeof(*live_header)); |
| 677 | if (!lttng_buffer_view_is_valid(¤t_view)) { |
| 678 | ret = -1; |
| 679 | goto end; |
| 680 | } |
| 681 | |
| 682 | live_header = (typeof(live_header)) current_view.data; |
| 683 | live_timer_us = live_header->live_timer_us; |
| 684 | break; |
| 685 | } |
| 686 | default: |
| 687 | ret = -1; |
| 688 | goto end; |
| 689 | } |
| 690 | /* type has been validated. */ |
| 691 | type = (lttng_session_descriptor_type) base_header->type; |
| 692 | |
| 693 | switch (base_header->output_type) { |
| 694 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 695 | max_expected_uri_count = 0; |
| 696 | break; |
| 697 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 698 | max_expected_uri_count = 1; |
| 699 | break; |
| 700 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 701 | max_expected_uri_count = 2; |
| 702 | break; |
| 703 | default: |
| 704 | ret = -1; |
| 705 | goto end; |
| 706 | } |
| 707 | /* output_type has been validated. */ |
| 708 | output_type = (lttng_session_descriptor_output_type) base_header->output_type; |
| 709 | |
| 710 | /* Skip after header. */ |
| 711 | offset += current_view.size; |
| 712 | if (!base_header->name_len) { |
| 713 | goto skip_name; |
| 714 | } |
| 715 | |
| 716 | /* Map the name. */ |
| 717 | current_view = lttng_buffer_view_from_view(payload, offset, |
| 718 | base_header->name_len); |
| 719 | if (!lttng_buffer_view_is_valid(¤t_view)) { |
| 720 | ret = -1; |
| 721 | goto end; |
| 722 | } |
| 723 | |
| 724 | name = current_view.data; |
| 725 | if (base_header->name_len == 1 || |
| 726 | name[base_header->name_len - 1] || |
| 727 | strlen(name) != base_header->name_len - 1) { |
| 728 | /* |
| 729 | * Check that the name is not NULL, is NULL-terminated, and |
| 730 | * does not contain a NULL before the last byte. |
| 731 | */ |
| 732 | ret = -1; |
| 733 | goto end; |
| 734 | } |
| 735 | |
| 736 | /* Skip after the name. */ |
| 737 | offset += base_header->name_len; |
| 738 | skip_name: |
| 739 | if (base_header->uri_count > max_expected_uri_count) { |
| 740 | ret = -1; |
| 741 | goto end; |
| 742 | } |
| 743 | |
| 744 | for (i = 0; i < base_header->uri_count; i++) { |
| 745 | struct lttng_uri *uri; |
| 746 | |
| 747 | /* Map a URI. */ |
| 748 | current_view = lttng_buffer_view_from_view(payload, |
| 749 | offset, sizeof(*uri)); |
| 750 | if (!lttng_buffer_view_is_valid(¤t_view)) { |
| 751 | ret = -1; |
| 752 | goto end; |
| 753 | } |
| 754 | |
| 755 | uri = (typeof(uri)) current_view.data; |
| 756 | uris[i] = zmalloc<lttng_uri>(); |
| 757 | if (!uris[i]) { |
| 758 | ret = -1; |
| 759 | goto end; |
| 760 | } |
| 761 | memcpy(uris[i], uri, sizeof(*uri)); |
| 762 | offset += sizeof(*uri); |
| 763 | } |
| 764 | |
| 765 | /* Deserialize trace format */ |
| 766 | { |
| 767 | struct lttng_payload_view current_payload_view = |
| 768 | lttng_payload_view_from_buffer_view( |
| 769 | payload, offset, base_header->trace_format_len); |
| 770 | if (!lttng_buffer_view_is_valid(¤t_view)) { |
| 771 | ret = -1; |
| 772 | goto end; |
| 773 | } |
| 774 | ret = lttng::trace_format_descriptor::create_from_payload( |
| 775 | ¤t_payload_view, trace_format); |
| 776 | if (ret < 0 || ret != base_header->trace_format_len) { |
| 777 | ret = -1; |
| 778 | goto end; |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | switch (type) { |
| 783 | case LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR: |
| 784 | switch (output_type) { |
| 785 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 786 | *descriptor = lttng_session_descriptor_create(name); |
| 787 | break; |
| 788 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 789 | *descriptor = _lttng_session_descriptor_local_create( |
| 790 | name, uris[0]); |
| 791 | break; |
| 792 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 793 | *descriptor = _lttng_session_descriptor_network_create( |
| 794 | name, uris[0], uris[1]); |
| 795 | break; |
| 796 | default: |
| 797 | /* Already checked. */ |
| 798 | abort(); |
| 799 | } |
| 800 | break; |
| 801 | case LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT: |
| 802 | { |
| 803 | struct lttng_session_descriptor_snapshot *snapshot; |
| 804 | switch (output_type) { |
| 805 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 806 | snapshot = _lttng_session_descriptor_snapshot_create( |
| 807 | name); |
| 808 | break; |
| 809 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 810 | snapshot = _lttng_session_descriptor_snapshot_local_create( |
| 811 | name, uris[0]); |
| 812 | break; |
| 813 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 814 | snapshot = _lttng_session_descriptor_snapshot_network_create( |
| 815 | name, uris[0], uris[1]); |
| 816 | break; |
| 817 | default: |
| 818 | /* Already checked. */ |
| 819 | abort(); |
| 820 | } |
| 821 | *descriptor = snapshot ? &snapshot->base : NULL; |
| 822 | break; |
| 823 | } |
| 824 | case LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE: |
| 825 | { |
| 826 | struct lttng_session_descriptor_live *live; |
| 827 | |
| 828 | switch (output_type) { |
| 829 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 830 | live = _lttng_session_descriptor_live_create( |
| 831 | name, live_timer_us); |
| 832 | break; |
| 833 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 834 | live = _lttng_session_descriptor_live_network_create( |
| 835 | name, uris[0], uris[1], |
| 836 | live_timer_us); |
| 837 | break; |
| 838 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 839 | ret = -1; |
| 840 | goto end; |
| 841 | default: |
| 842 | /* Already checked. */ |
| 843 | abort(); |
| 844 | } |
| 845 | *descriptor = live ? &live->base : NULL; |
| 846 | break; |
| 847 | } |
| 848 | default: |
| 849 | /* Already checked. */ |
| 850 | abort(); |
| 851 | } |
| 852 | memset(uris, 0, sizeof(uris)); |
| 853 | if (!*descriptor) { |
| 854 | ret = -1; |
| 855 | goto end; |
| 856 | } |
| 857 | |
| 858 | (*descriptor)->format_descriptor = trace_format.release(); |
| 859 | |
| 860 | ret = offset; |
| 861 | end: |
| 862 | free(uris[0]); |
| 863 | free(uris[1]); |
| 864 | return ret; |
| 865 | } |
| 866 | |
| 867 | int lttng_session_descriptor_serialize( |
| 868 | const struct lttng_session_descriptor *descriptor, lttng_payload *payload) |
| 869 | { |
| 870 | int ret, i; |
| 871 | size_t header_offset, size_before_payload; |
| 872 | /* There are, at most, two URIs to serialize. */ |
| 873 | struct lttng_uri *uris[2] = {}; |
| 874 | size_t uri_count = 0; |
| 875 | /* The live header is a superset of all headers. */ |
| 876 | struct lttng_session_descriptor_live_comm header = { |
| 877 | .base = |
| 878 | { |
| 879 | .type = (uint8_t) descriptor->type, |
| 880 | .output_type = (uint8_t) descriptor |
| 881 | ->output_type, |
| 882 | .name_len = (uint32_t) (descriptor->name ? |
| 883 | strlen(descriptor->name) + |
| 884 | 1 : |
| 885 | 0), |
| 886 | .uri_count = 0, |
| 887 | .trace_format_len = 0, |
| 888 | }, |
| 889 | .live_timer_us = 0, |
| 890 | |
| 891 | }; |
| 892 | struct lttng_session_descriptor_comm *base_header; |
| 893 | const void *header_ptr = NULL; |
| 894 | size_t header_size; |
| 895 | |
| 896 | switch (descriptor->output_type) { |
| 897 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 898 | break; |
| 899 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 900 | uris[0] = descriptor->output.local; |
| 901 | break; |
| 902 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 903 | uris[0] = descriptor->output.network.control; |
| 904 | uris[1] = descriptor->output.network.data; |
| 905 | break; |
| 906 | default: |
| 907 | ret = -1; |
| 908 | goto end; |
| 909 | } |
| 910 | uri_count += !!uris[0]; |
| 911 | uri_count += !!uris[1]; |
| 912 | |
| 913 | header.base.uri_count = uri_count; |
| 914 | if (descriptor->type == LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE) { |
| 915 | const struct lttng_session_descriptor_live *live = lttng::utils::container_of( |
| 916 | descriptor, <tng_session_descriptor_live::base); |
| 917 | |
| 918 | header.live_timer_us = live->live_timer_us; |
| 919 | header_ptr = &header; |
| 920 | header_size = sizeof(header); |
| 921 | } else { |
| 922 | header_ptr = &header.base; |
| 923 | header_size = sizeof(header.base); |
| 924 | } |
| 925 | |
| 926 | header_offset = payload->buffer.size; |
| 927 | ret = lttng_dynamic_buffer_append(&payload->buffer, header_ptr, header_size); |
| 928 | if (ret) { |
| 929 | goto end; |
| 930 | } |
| 931 | if (header.base.name_len) { |
| 932 | ret = lttng_dynamic_buffer_append( |
| 933 | &payload->buffer, descriptor->name, header.base.name_len); |
| 934 | if (ret) { |
| 935 | goto end; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | for (i = 0; i < uri_count; i++) { |
| 940 | ret = lttng_dynamic_buffer_append( |
| 941 | &payload->buffer, uris[i], sizeof(struct lttng_uri)); |
| 942 | if (ret) { |
| 943 | goto end; |
| 944 | } |
| 945 | } |
| 946 | |
| 947 | /* Serialize trace format */ |
| 948 | size_before_payload = payload->buffer.size; |
| 949 | ret = reinterpret_cast<lttng::trace_format_descriptor *>(descriptor->format_descriptor) |
| 950 | ->serialize(payload); |
| 951 | if (ret) { |
| 952 | goto end; |
| 953 | } |
| 954 | base_header = (typeof(base_header)) (payload->buffer.data + header_offset); |
| 955 | base_header->trace_format_len = payload->buffer.size - size_before_payload; |
| 956 | end: |
| 957 | return ret; |
| 958 | } |
| 959 | |
| 960 | enum lttng_session_descriptor_type |
| 961 | lttng_session_descriptor_get_type( |
| 962 | const struct lttng_session_descriptor *descriptor) |
| 963 | { |
| 964 | return descriptor->type; |
| 965 | } |
| 966 | |
| 967 | enum lttng_session_descriptor_output_type |
| 968 | lttng_session_descriptor_get_output_type( |
| 969 | const struct lttng_session_descriptor *descriptor) |
| 970 | { |
| 971 | return descriptor->output_type; |
| 972 | } |
| 973 | |
| 974 | void lttng_session_descriptor_get_local_output_uri( |
| 975 | const struct lttng_session_descriptor *descriptor, |
| 976 | struct lttng_uri *local_uri) |
| 977 | { |
| 978 | memcpy(local_uri, descriptor->output.local, sizeof(*local_uri)); |
| 979 | } |
| 980 | |
| 981 | void lttng_session_descriptor_get_network_output_uris( |
| 982 | const struct lttng_session_descriptor *descriptor, |
| 983 | struct lttng_uri *control, |
| 984 | struct lttng_uri *data) |
| 985 | { |
| 986 | memcpy(control, descriptor->output.network.control, sizeof(*control)); |
| 987 | memcpy(data, descriptor->output.network.data, sizeof(*data)); |
| 988 | } |
| 989 | |
| 990 | unsigned long long |
| 991 | lttng_session_descriptor_live_get_timer_interval( |
| 992 | const struct lttng_session_descriptor *descriptor) |
| 993 | { |
| 994 | struct lttng_session_descriptor_live *live; |
| 995 | |
| 996 | live = lttng::utils::container_of(descriptor, <tng_session_descriptor_live::base); |
| 997 | return live->live_timer_us; |
| 998 | } |
| 999 | |
| 1000 | enum lttng_session_descriptor_status |
| 1001 | lttng_session_descriptor_get_session_name( |
| 1002 | const struct lttng_session_descriptor *descriptor, |
| 1003 | const char **session_name) |
| 1004 | { |
| 1005 | enum lttng_session_descriptor_status status; |
| 1006 | |
| 1007 | if (!descriptor || !session_name) { |
| 1008 | status = LTTNG_SESSION_DESCRIPTOR_STATUS_INVALID; |
| 1009 | goto end; |
| 1010 | } |
| 1011 | |
| 1012 | *session_name = descriptor->name; |
| 1013 | status = descriptor->name ? |
| 1014 | LTTNG_SESSION_DESCRIPTOR_STATUS_OK : |
| 1015 | LTTNG_SESSION_DESCRIPTOR_STATUS_UNSET; |
| 1016 | end: |
| 1017 | return status; |
| 1018 | } |
| 1019 | |
| 1020 | int lttng_session_descriptor_set_session_name( |
| 1021 | struct lttng_session_descriptor *descriptor, |
| 1022 | const char *name) |
| 1023 | { |
| 1024 | int ret = 0; |
| 1025 | char *new_name; |
| 1026 | |
| 1027 | if (!name) { |
| 1028 | goto end; |
| 1029 | } |
| 1030 | if (strlen(name) >= LTTNG_NAME_MAX) { |
| 1031 | ret = -1; |
| 1032 | goto end; |
| 1033 | } |
| 1034 | new_name = strdup(name); |
| 1035 | if (!new_name) { |
| 1036 | ret = -1; |
| 1037 | goto end; |
| 1038 | } |
| 1039 | free(descriptor->name); |
| 1040 | descriptor->name = new_name; |
| 1041 | end: |
| 1042 | return ret; |
| 1043 | } |
| 1044 | |
| 1045 | bool lttng_session_descriptor_is_output_destination_initialized( |
| 1046 | const struct lttng_session_descriptor *descriptor) |
| 1047 | { |
| 1048 | switch (descriptor->output_type) { |
| 1049 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 1050 | return true; |
| 1051 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 1052 | return descriptor->output.local; |
| 1053 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 1054 | return descriptor->output.network.control; |
| 1055 | default: |
| 1056 | abort(); |
| 1057 | } |
| 1058 | } |
| 1059 | |
| 1060 | bool lttng_session_descriptor_has_output_directory( |
| 1061 | const struct lttng_session_descriptor *descriptor) |
| 1062 | { |
| 1063 | switch (descriptor->output_type) { |
| 1064 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 1065 | break; |
| 1066 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 1067 | if (descriptor->output.local) { |
| 1068 | return *descriptor->output.local->dst.path; |
| 1069 | } |
| 1070 | break; |
| 1071 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 1072 | if (descriptor->output.network.control) { |
| 1073 | return *descriptor->output.network.control->subdir; |
| 1074 | } |
| 1075 | break; |
| 1076 | default: |
| 1077 | abort(); |
| 1078 | } |
| 1079 | return false; |
| 1080 | } |
| 1081 | |
| 1082 | enum lttng_error_code lttng_session_descriptor_set_default_output( |
| 1083 | struct lttng_session_descriptor *descriptor, |
| 1084 | time_t *session_creation_time, |
| 1085 | const char *absolute_home_path) |
| 1086 | { |
| 1087 | enum lttng_error_code ret_code = LTTNG_OK; |
| 1088 | struct lttng_uri *uris = NULL; |
| 1089 | |
| 1090 | switch (descriptor->output_type) { |
| 1091 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 1092 | goto end; |
| 1093 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 1094 | { |
| 1095 | int ret; |
| 1096 | ssize_t uri_ret; |
| 1097 | char local_uri[LTTNG_PATH_MAX]; |
| 1098 | char creation_datetime_suffix[17] = {}; |
| 1099 | |
| 1100 | if (session_creation_time) { |
| 1101 | size_t strftime_ret; |
| 1102 | struct tm *timeinfo; |
| 1103 | |
| 1104 | timeinfo = localtime(session_creation_time); |
| 1105 | if (!timeinfo) { |
| 1106 | ret_code = LTTNG_ERR_FATAL; |
| 1107 | goto end; |
| 1108 | } |
| 1109 | strftime_ret = strftime(creation_datetime_suffix, |
| 1110 | sizeof(creation_datetime_suffix), |
| 1111 | "-%Y%m%d-%H%M%S", timeinfo); |
| 1112 | if (strftime_ret == 0) { |
| 1113 | ERR("Failed to format session creation timestamp while setting default local output destination"); |
| 1114 | ret_code = LTTNG_ERR_FATAL; |
| 1115 | goto end; |
| 1116 | } |
| 1117 | } |
| 1118 | LTTNG_ASSERT(descriptor->name); |
| 1119 | ret = snprintf(local_uri, sizeof(local_uri), |
| 1120 | "file://%s/%s/%s%s", |
| 1121 | absolute_home_path, |
| 1122 | DEFAULT_TRACE_DIR_NAME, descriptor->name, |
| 1123 | creation_datetime_suffix); |
| 1124 | if (ret >= sizeof(local_uri)) { |
| 1125 | ERR("Truncation occurred while setting default local output destination"); |
| 1126 | ret_code = LTTNG_ERR_SET_URL; |
| 1127 | goto end; |
| 1128 | } else if (ret < 0) { |
| 1129 | PERROR("Failed to format default local output URI"); |
| 1130 | ret_code = LTTNG_ERR_SET_URL; |
| 1131 | goto end; |
| 1132 | } |
| 1133 | |
| 1134 | uri_ret = uri_parse(local_uri, &uris); |
| 1135 | if (uri_ret != 1) { |
| 1136 | ret_code = LTTNG_ERR_SET_URL; |
| 1137 | goto end; |
| 1138 | } |
| 1139 | free(descriptor->output.local); |
| 1140 | descriptor->output.local = &uris[0]; |
| 1141 | uris = NULL; |
| 1142 | break; |
| 1143 | } |
| 1144 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 1145 | { |
| 1146 | int ret; |
| 1147 | ssize_t uri_ret; |
| 1148 | struct lttng_uri *control = NULL, *data = NULL; |
| 1149 | |
| 1150 | uri_ret = uri_parse_str_urls("net://127.0.0.1", NULL, &uris); |
| 1151 | if (uri_ret != 2) { |
| 1152 | ret_code = LTTNG_ERR_SET_URL; |
| 1153 | goto end; |
| 1154 | } |
| 1155 | |
| 1156 | control = uri_copy(&uris[0]); |
| 1157 | data = uri_copy(&uris[1]); |
| 1158 | if (!control || !data) { |
| 1159 | free(control); |
| 1160 | free(data); |
| 1161 | ret_code = LTTNG_ERR_SET_URL; |
| 1162 | goto end; |
| 1163 | } |
| 1164 | |
| 1165 | /* Ownership of uris is transferred. */ |
| 1166 | ret = network_location_set_from_lttng_uris( |
| 1167 | &descriptor->output.network, |
| 1168 | control, data); |
| 1169 | if (ret) { |
| 1170 | abort(); |
| 1171 | ret_code = LTTNG_ERR_SET_URL; |
| 1172 | goto end; |
| 1173 | } |
| 1174 | break; |
| 1175 | } |
| 1176 | default: |
| 1177 | abort(); |
| 1178 | } |
| 1179 | end: |
| 1180 | free(uris); |
| 1181 | return ret_code; |
| 1182 | } |
| 1183 | |
| 1184 | /* |
| 1185 | * Note that only properties that can be populated by the session daemon |
| 1186 | * (output destination and name) are assigned. |
| 1187 | */ |
| 1188 | int lttng_session_descriptor_assign( |
| 1189 | struct lttng_session_descriptor *dst, |
| 1190 | const struct lttng_session_descriptor *src) |
| 1191 | { |
| 1192 | int ret = 0; |
| 1193 | |
| 1194 | if (dst->type != src->type) { |
| 1195 | ret = -1; |
| 1196 | goto end; |
| 1197 | } |
| 1198 | if (dst->output_type != src->output_type) { |
| 1199 | ret = -1; |
| 1200 | goto end; |
| 1201 | } |
| 1202 | ret = lttng_session_descriptor_set_session_name(dst, src->name); |
| 1203 | if (ret) { |
| 1204 | goto end; |
| 1205 | } |
| 1206 | |
| 1207 | try { |
| 1208 | dst->format_descriptor = src->format_descriptor->clone().release(); |
| 1209 | } catch (...) { |
| 1210 | ret = -1; |
| 1211 | goto end; |
| 1212 | } |
| 1213 | |
| 1214 | switch (dst->output_type) { |
| 1215 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL: |
| 1216 | free(dst->output.local); |
| 1217 | dst->output.local = uri_copy(src->output.local); |
| 1218 | if (!dst->output.local) { |
| 1219 | ret = -1; |
| 1220 | goto end; |
| 1221 | } |
| 1222 | break; |
| 1223 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK: |
| 1224 | { |
| 1225 | struct lttng_uri *control_copy = NULL, *data_copy = NULL; |
| 1226 | |
| 1227 | control_copy = uri_copy(dst->output.network.control); |
| 1228 | if (!control_copy && dst->output.network.control) { |
| 1229 | ret = -1; |
| 1230 | goto end; |
| 1231 | } |
| 1232 | data_copy = uri_copy(dst->output.network.data); |
| 1233 | if (!data_copy && dst->output.network.data) { |
| 1234 | free(control_copy); |
| 1235 | ret = -1; |
| 1236 | goto end; |
| 1237 | } |
| 1238 | ret = network_location_set_from_lttng_uris(&dst->output.network, |
| 1239 | control_copy, data_copy); |
| 1240 | break; |
| 1241 | } |
| 1242 | case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE: |
| 1243 | goto end; |
| 1244 | } |
| 1245 | end: |
| 1246 | return ret; |
| 1247 | } |
| 1248 | |
| 1249 | enum lttng_session_descriptor_status lttng_session_descriptor_get_trace_format_descriptor( |
| 1250 | const struct lttng_session_descriptor *session_descriptor, |
| 1251 | const struct lttng_trace_format_descriptor **trace_format_descriptor) |
| 1252 | { |
| 1253 | *trace_format_descriptor = reinterpret_cast<const lttng_trace_format_descriptor *>( |
| 1254 | session_descriptor->format_descriptor); |
| 1255 | return LTTNG_SESSION_DESCRIPTOR_STATUS_OK; |
| 1256 | } |
| 1257 | |
| 1258 | /* trace_format_descriptor is copied internally */ |
| 1259 | enum lttng_session_descriptor_status lttng_session_descriptor_set_trace_format_descriptor( |
| 1260 | struct lttng_session_descriptor *session_descriptor, |
| 1261 | const struct lttng_trace_format_descriptor *trace_format_descriptor) |
| 1262 | { |
| 1263 | if (!session_descriptor || !trace_format_descriptor) { |
| 1264 | return LTTNG_SESSION_DESCRIPTOR_STATUS_INVALID; |
| 1265 | } |
| 1266 | |
| 1267 | try { |
| 1268 | lttng::trace_format_descriptor::uptr copy = |
| 1269 | reinterpret_cast<const lttng::trace_format_descriptor *>( |
| 1270 | trace_format_descriptor) |
| 1271 | ->clone(); |
| 1272 | delete session_descriptor->format_descriptor; |
| 1273 | session_descriptor->format_descriptor = copy.release(); |
| 1274 | } catch (const std::exception& ex) { |
| 1275 | return LTTNG_SESSION_DESCRIPTOR_STATUS_INVALID; |
| 1276 | } |
| 1277 | |
| 1278 | return LTTNG_SESSION_DESCRIPTOR_STATUS_OK; |
| 1279 | } |