| 1 | /* |
| 2 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
| 3 | * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0-only |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #define _LGPL_SOURCE |
| 10 | #include <ctype.h> |
| 11 | #include <popt.h> |
| 12 | #include <stdbool.h> |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <string.h> |
| 16 | #include <sys/stat.h> |
| 17 | #include <sys/types.h> |
| 18 | #include <unistd.h> |
| 19 | #include <assert.h> |
| 20 | |
| 21 | #include <urcu/list.h> |
| 22 | |
| 23 | #include <common/mi-lttng.h> |
| 24 | |
| 25 | #include "../command.h" |
| 26 | |
| 27 | enum cmd_type { |
| 28 | CMD_TRACK, |
| 29 | CMD_UNTRACK, |
| 30 | }; |
| 31 | |
| 32 | enum tracker_type_state { |
| 33 | STATE_NONE = 0, |
| 34 | STATE_PID, |
| 35 | STATE_VPID, |
| 36 | STATE_UID, |
| 37 | STATE_VUID, |
| 38 | STATE_GID, |
| 39 | STATE_VGID, |
| 40 | }; |
| 41 | |
| 42 | struct opt_type { |
| 43 | int used; |
| 44 | int all; |
| 45 | char *string; |
| 46 | }; |
| 47 | |
| 48 | struct id_list { |
| 49 | size_t nr; |
| 50 | struct lttng_tracker_id **array; |
| 51 | }; |
| 52 | |
| 53 | static char *opt_session_name; |
| 54 | static int opt_kernel; |
| 55 | static int opt_userspace; |
| 56 | |
| 57 | static struct opt_type opt_pid, opt_vpid, opt_uid, opt_vuid, opt_gid, opt_vgid; |
| 58 | |
| 59 | static enum tracker_type_state type_state; |
| 60 | |
| 61 | enum { |
| 62 | OPT_HELP = 1, |
| 63 | OPT_LIST_OPTIONS, |
| 64 | OPT_SESSION, |
| 65 | OPT_PID, |
| 66 | OPT_VPID, |
| 67 | OPT_UID, |
| 68 | OPT_VUID, |
| 69 | OPT_GID, |
| 70 | OPT_VGID, |
| 71 | OPT_ALL, |
| 72 | }; |
| 73 | |
| 74 | static struct poptOption long_options[] = { |
| 75 | /* { longName, shortName, argInfo, argPtr, value, descrip, argDesc, } */ |
| 76 | { "help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0, }, |
| 77 | { "session", 's', POPT_ARG_STRING, &opt_session_name, OPT_SESSION, 0, 0, }, |
| 78 | { "kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0, }, |
| 79 | { "userspace", 'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0, }, |
| 80 | { "pid", 'p', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_pid.string, OPT_PID, 0, 0, }, |
| 81 | { "vpid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vpid.string, OPT_VPID, 0, 0, }, |
| 82 | { "uid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_uid.string, OPT_UID, 0, 0, }, |
| 83 | { "vuid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vuid.string, OPT_VUID, 0, 0, }, |
| 84 | { "gid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_gid.string, OPT_GID, 0, 0, }, |
| 85 | { "vgid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vgid.string, OPT_VGID, 0, 0, }, |
| 86 | { "all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0, }, |
| 87 | { "list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, 0, 0, }, |
| 88 | { 0, 0, 0, 0, 0, 0, 0, }, |
| 89 | }; |
| 90 | |
| 91 | static struct id_list *alloc_id_list(size_t nr_items) |
| 92 | { |
| 93 | struct id_list *id_list; |
| 94 | struct lttng_tracker_id **items; |
| 95 | |
| 96 | id_list = zmalloc(sizeof(*id_list)); |
| 97 | if (!id_list) { |
| 98 | goto error; |
| 99 | } |
| 100 | items = zmalloc(nr_items * sizeof(*items)); |
| 101 | if (!items) { |
| 102 | goto error; |
| 103 | } |
| 104 | id_list->nr = nr_items; |
| 105 | id_list->array = items; |
| 106 | return id_list; |
| 107 | error: |
| 108 | free(id_list); |
| 109 | return NULL; |
| 110 | } |
| 111 | |
| 112 | static void free_id_list(struct id_list *list) |
| 113 | { |
| 114 | size_t nr_items; |
| 115 | int i; |
| 116 | |
| 117 | if (!list) { |
| 118 | return; |
| 119 | } |
| 120 | nr_items = list->nr; |
| 121 | for (i = 0; i < nr_items; i++) { |
| 122 | struct lttng_tracker_id *item = list->array[i]; |
| 123 | lttng_tracker_id_destroy(item); |
| 124 | } |
| 125 | free(list); |
| 126 | } |
| 127 | |
| 128 | static int parse_id_string(const char *_id_string, |
| 129 | int all, |
| 130 | struct id_list **_id_list, |
| 131 | enum lttng_tracker_type tracker_type) |
| 132 | { |
| 133 | const char *one_id_str; |
| 134 | char *iter; |
| 135 | int retval = CMD_SUCCESS; |
| 136 | int count = 0; |
| 137 | struct id_list *id_list = NULL; |
| 138 | char *id_string = NULL; |
| 139 | char *endptr; |
| 140 | |
| 141 | if (all && _id_string) { |
| 142 | ERR("An empty ID string is expected with --all"); |
| 143 | retval = CMD_ERROR; |
| 144 | goto error; |
| 145 | } |
| 146 | if (!all && !_id_string) { |
| 147 | ERR("An ID string is expected"); |
| 148 | retval = CMD_ERROR; |
| 149 | goto error; |
| 150 | } |
| 151 | if (all) { |
| 152 | enum lttng_tracker_id_status status; |
| 153 | /* Empty `ID string means all IDs */ |
| 154 | id_list = alloc_id_list(1); |
| 155 | if (!id_list) { |
| 156 | ERR("Out of memory"); |
| 157 | retval = CMD_ERROR; |
| 158 | goto error; |
| 159 | } |
| 160 | |
| 161 | id_list->array[0] = lttng_tracker_id_create(); |
| 162 | if (id_list->array[0] == NULL) { |
| 163 | ERR("Out of memory"); |
| 164 | retval = CMD_ERROR; |
| 165 | goto error; |
| 166 | } |
| 167 | |
| 168 | status = lttng_tracker_id_set_all(id_list->array[0]); |
| 169 | if (status != LTTNG_TRACKER_ID_STATUS_OK) { |
| 170 | ERR("Invalid value for tracker id"); |
| 171 | retval = CMD_ERROR; |
| 172 | goto error; |
| 173 | } |
| 174 | goto assign; |
| 175 | } |
| 176 | |
| 177 | id_string = strdup(_id_string); |
| 178 | if (!id_string) { |
| 179 | ERR("Out of memory"); |
| 180 | retval = CMD_ERROR; |
| 181 | goto error; |
| 182 | } |
| 183 | |
| 184 | /* Count */ |
| 185 | one_id_str = strtok_r(id_string, ",", &iter); |
| 186 | while (one_id_str != NULL) { |
| 187 | unsigned long v; |
| 188 | |
| 189 | if (isdigit(one_id_str[0])) { |
| 190 | errno = 0; |
| 191 | v = strtoul(one_id_str, &endptr, 10); |
| 192 | if ((v == 0 && errno == EINVAL) || |
| 193 | (v == ULONG_MAX && errno == ERANGE) || |
| 194 | (*one_id_str != '\0' && |
| 195 | *endptr != '\0')) { |
| 196 | ERR("Error parsing ID %s", one_id_str); |
| 197 | retval = CMD_ERROR; |
| 198 | goto error; |
| 199 | } |
| 200 | |
| 201 | if ((long) v > INT_MAX || (int) v < 0) { |
| 202 | ERR("Invalid ID value %ld", (long) v); |
| 203 | retval = CMD_ERROR; |
| 204 | goto error; |
| 205 | } |
| 206 | } |
| 207 | count++; |
| 208 | |
| 209 | /* For next loop */ |
| 210 | one_id_str = strtok_r(NULL, ",", &iter); |
| 211 | } |
| 212 | if (count == 0) { |
| 213 | ERR("Fatal error occurred when parsing pid string"); |
| 214 | retval = CMD_ERROR; |
| 215 | goto error; |
| 216 | } |
| 217 | |
| 218 | free(id_string); |
| 219 | /* Identity of delimiter has been lost in first pass. */ |
| 220 | id_string = strdup(_id_string); |
| 221 | if (!id_string) { |
| 222 | ERR("Out of memory"); |
| 223 | retval = CMD_ERROR; |
| 224 | goto error; |
| 225 | } |
| 226 | |
| 227 | /* Allocate */ |
| 228 | id_list = alloc_id_list(count); |
| 229 | if (!id_list) { |
| 230 | ERR("Out of memory"); |
| 231 | retval = CMD_ERROR; |
| 232 | goto error; |
| 233 | } |
| 234 | |
| 235 | /* Reparse string and populate the id list. */ |
| 236 | count = 0; |
| 237 | one_id_str = strtok_r(id_string, ",", &iter); |
| 238 | while (one_id_str != NULL) { |
| 239 | enum lttng_tracker_id_status status; |
| 240 | struct lttng_tracker_id *item; |
| 241 | item = lttng_tracker_id_create(); |
| 242 | if (item == NULL) { |
| 243 | ERR("Out of memory"); |
| 244 | retval = CMD_ERROR; |
| 245 | goto error; |
| 246 | } |
| 247 | |
| 248 | id_list->array[count++] = item; |
| 249 | if (isdigit(one_id_str[0])) { |
| 250 | unsigned long v; |
| 251 | |
| 252 | v = strtoul(one_id_str, NULL, 10); |
| 253 | status = lttng_tracker_id_set_value(item, (int) v); |
| 254 | if (status == LTTNG_TRACKER_ID_STATUS_INVALID) { |
| 255 | ERR("Invalid value"); |
| 256 | retval = CMD_ERROR; |
| 257 | goto error; |
| 258 | } |
| 259 | } else { |
| 260 | status = lttng_tracker_id_set_string(item, one_id_str); |
| 261 | if (status == LTTNG_TRACKER_ID_STATUS_INVALID) { |
| 262 | ERR("Failed to set ID string"); |
| 263 | retval = CMD_ERROR; |
| 264 | goto error; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | /* For next loop */ |
| 269 | one_id_str = strtok_r(NULL, ",", &iter); |
| 270 | } |
| 271 | |
| 272 | assign: |
| 273 | /* SUCCESS */ |
| 274 | *_id_list = id_list; |
| 275 | goto end; |
| 276 | |
| 277 | error: |
| 278 | /* ERROR */ |
| 279 | free_id_list(id_list); |
| 280 | end: |
| 281 | free(id_string); |
| 282 | return retval; |
| 283 | } |
| 284 | |
| 285 | static const char *get_tracker_str(enum lttng_tracker_type tracker_type) |
| 286 | { |
| 287 | switch (tracker_type) { |
| 288 | case LTTNG_TRACKER_PID: |
| 289 | return "PID"; |
| 290 | case LTTNG_TRACKER_VPID: |
| 291 | return "VPID"; |
| 292 | case LTTNG_TRACKER_UID: |
| 293 | return "UID"; |
| 294 | case LTTNG_TRACKER_VUID: |
| 295 | return "VUID"; |
| 296 | case LTTNG_TRACKER_GID: |
| 297 | return "GID"; |
| 298 | case LTTNG_TRACKER_VGID: |
| 299 | return "VGID"; |
| 300 | default: |
| 301 | return NULL; |
| 302 | } |
| 303 | return NULL; |
| 304 | } |
| 305 | |
| 306 | static int ust_tracker_type_support(enum lttng_tracker_type *tracker_type) |
| 307 | { |
| 308 | int ret; |
| 309 | |
| 310 | switch (*tracker_type) { |
| 311 | case LTTNG_TRACKER_PID: |
| 312 | *tracker_type = LTTNG_TRACKER_VPID; |
| 313 | ret = 0; |
| 314 | break; |
| 315 | case LTTNG_TRACKER_VPID: |
| 316 | case LTTNG_TRACKER_VUID: |
| 317 | case LTTNG_TRACKER_VGID: |
| 318 | ret = 0; |
| 319 | break; |
| 320 | case LTTNG_TRACKER_UID: |
| 321 | case LTTNG_TRACKER_GID: |
| 322 | ERR("The %s tracker is invalid for UST domain.", |
| 323 | get_tracker_str(*tracker_type)); |
| 324 | ret = -1; |
| 325 | break; |
| 326 | default: |
| 327 | ret = -1; |
| 328 | break; |
| 329 | } |
| 330 | |
| 331 | return ret; |
| 332 | } |
| 333 | |
| 334 | static enum cmd_error_code track_untrack_id(enum cmd_type cmd_type, |
| 335 | const char *cmd_str, |
| 336 | const char *session_name, |
| 337 | const char *id_string, |
| 338 | int all, |
| 339 | struct mi_writer *writer, |
| 340 | enum lttng_tracker_type tracker_type) |
| 341 | { |
| 342 | int ret, success = 1 , i; |
| 343 | enum cmd_error_code retval = CMD_SUCCESS; |
| 344 | struct id_list *id_list = NULL; |
| 345 | struct lttng_domain dom; |
| 346 | struct lttng_handle *handle = NULL; |
| 347 | int (*cmd_func)(struct lttng_handle *handle, |
| 348 | enum lttng_tracker_type tracker_type, |
| 349 | const struct lttng_tracker_id *id); |
| 350 | const char *tracker_str; |
| 351 | |
| 352 | switch (cmd_type) { |
| 353 | case CMD_TRACK: |
| 354 | cmd_func = lttng_track_id; |
| 355 | break; |
| 356 | case CMD_UNTRACK: |
| 357 | cmd_func = lttng_untrack_id; |
| 358 | break; |
| 359 | default: |
| 360 | ERR("Unknown command"); |
| 361 | retval = CMD_ERROR; |
| 362 | goto end; |
| 363 | } |
| 364 | memset(&dom, 0, sizeof(dom)); |
| 365 | if (opt_kernel) { |
| 366 | dom.type = LTTNG_DOMAIN_KERNEL; |
| 367 | } else if (opt_userspace) { |
| 368 | dom.type = LTTNG_DOMAIN_UST; |
| 369 | ret = ust_tracker_type_support(&tracker_type); |
| 370 | if (ret) { |
| 371 | ERR("Invalid parameter"); |
| 372 | retval = CMD_ERROR; |
| 373 | goto end; |
| 374 | } |
| 375 | } else { |
| 376 | /* Checked by the caller. */ |
| 377 | assert(0); |
| 378 | } |
| 379 | tracker_str = get_tracker_str(tracker_type); |
| 380 | if (!tracker_str) { |
| 381 | ERR("Unknown tracker type"); |
| 382 | retval = CMD_ERROR; |
| 383 | goto end; |
| 384 | } |
| 385 | ret = parse_id_string(id_string, all, &id_list, tracker_type); |
| 386 | if (ret != CMD_SUCCESS) { |
| 387 | ERR("Error parsing %s string", tracker_str); |
| 388 | retval = CMD_ERROR; |
| 389 | goto end; |
| 390 | } |
| 391 | |
| 392 | handle = lttng_create_handle(session_name, &dom); |
| 393 | if (handle == NULL) { |
| 394 | retval = CMD_ERROR; |
| 395 | goto end; |
| 396 | } |
| 397 | |
| 398 | if (writer) { |
| 399 | /* Open tracker_id and targets elements */ |
| 400 | ret = mi_lttng_id_tracker_open(writer, tracker_type); |
| 401 | if (ret) { |
| 402 | goto end; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | for (i = 0; i < id_list->nr; i++) { |
| 407 | struct lttng_tracker_id *item = id_list->array[i]; |
| 408 | enum lttng_tracker_id_type type = |
| 409 | lttng_tracker_id_get_type(item); |
| 410 | enum lttng_tracker_id_status status = |
| 411 | LTTNG_TRACKER_ID_STATUS_OK; |
| 412 | int value; |
| 413 | const char *value_string; |
| 414 | |
| 415 | switch (type) { |
| 416 | case LTTNG_ID_ALL: |
| 417 | /* Nothing to check */ |
| 418 | break; |
| 419 | case LTTNG_ID_VALUE: |
| 420 | status = lttng_tracker_id_get_value(item, &value); |
| 421 | break; |
| 422 | case LTTNG_ID_STRING: |
| 423 | status = lttng_tracker_id_get_string( |
| 424 | item, &value_string); |
| 425 | break; |
| 426 | default: |
| 427 | retval = CMD_ERROR; |
| 428 | goto end; |
| 429 | } |
| 430 | |
| 431 | if (status != LTTNG_TRACKER_ID_STATUS_OK) { |
| 432 | ERR("Tracker id object is in an invalid state"); |
| 433 | retval = CMD_ERROR; |
| 434 | goto end; |
| 435 | } |
| 436 | |
| 437 | switch (type) { |
| 438 | case LTTNG_ID_ALL: |
| 439 | DBG("%s all IDs", cmd_str); |
| 440 | break; |
| 441 | case LTTNG_ID_VALUE: |
| 442 | DBG("%s ID %d", cmd_str, value); |
| 443 | break; |
| 444 | case LTTNG_ID_STRING: |
| 445 | DBG("%s ID '%s'", cmd_str, value_string); |
| 446 | break; |
| 447 | default: |
| 448 | retval = CMD_ERROR; |
| 449 | goto end; |
| 450 | } |
| 451 | |
| 452 | ret = cmd_func(handle, tracker_type, item); |
| 453 | if (ret) { |
| 454 | char *msg = NULL; |
| 455 | |
| 456 | switch (-ret) { |
| 457 | case LTTNG_ERR_ID_TRACKED: |
| 458 | msg = "already tracked"; |
| 459 | success = 1; |
| 460 | retval = CMD_SUCCESS; |
| 461 | break; |
| 462 | case LTTNG_ERR_ID_NOT_TRACKED: |
| 463 | msg = "already not tracked"; |
| 464 | success = 1; |
| 465 | retval = CMD_SUCCESS; |
| 466 | break; |
| 467 | default: |
| 468 | ERR("%s", lttng_strerror(ret)); |
| 469 | success = 0; |
| 470 | retval = CMD_ERROR; |
| 471 | break; |
| 472 | } |
| 473 | if (msg) { |
| 474 | switch (type) { |
| 475 | case LTTNG_ID_ALL: |
| 476 | WARN("All %ss %s in session %s", |
| 477 | tracker_str, msg, |
| 478 | session_name); |
| 479 | break; |
| 480 | case LTTNG_ID_VALUE: |
| 481 | WARN("%s %i %s in session %s", |
| 482 | tracker_str, value, msg, |
| 483 | session_name); |
| 484 | break; |
| 485 | case LTTNG_ID_STRING: |
| 486 | WARN("%s '%s' %s in session %s", |
| 487 | tracker_str, |
| 488 | value_string, msg, |
| 489 | session_name); |
| 490 | break; |
| 491 | default: |
| 492 | retval = CMD_ERROR; |
| 493 | goto end; |
| 494 | } |
| 495 | } |
| 496 | } else { |
| 497 | switch (type) { |
| 498 | case LTTNG_ID_ALL: |
| 499 | MSG("All %ss %sed in session %s", tracker_str, |
| 500 | cmd_str, session_name); |
| 501 | break; |
| 502 | case LTTNG_ID_VALUE: |
| 503 | MSG("%s %i %sed in session %s", tracker_str, |
| 504 | value, cmd_str, session_name); |
| 505 | break; |
| 506 | case LTTNG_ID_STRING: |
| 507 | MSG("%s '%s' %sed in session %s", tracker_str, |
| 508 | value_string, cmd_str, |
| 509 | session_name); |
| 510 | break; |
| 511 | default: |
| 512 | retval = CMD_ERROR; |
| 513 | goto end; |
| 514 | } |
| 515 | success = 1; |
| 516 | } |
| 517 | |
| 518 | /* Mi */ |
| 519 | if (writer) { |
| 520 | ret = mi_lttng_id_target(writer, tracker_type, item, 1); |
| 521 | if (ret) { |
| 522 | retval = CMD_ERROR; |
| 523 | goto end; |
| 524 | } |
| 525 | |
| 526 | ret = mi_lttng_writer_write_element_bool(writer, |
| 527 | mi_lttng_element_success, success); |
| 528 | if (ret) { |
| 529 | retval = CMD_ERROR; |
| 530 | goto end; |
| 531 | } |
| 532 | |
| 533 | ret = mi_lttng_writer_close_element(writer); |
| 534 | if (ret) { |
| 535 | retval = CMD_ERROR; |
| 536 | goto end; |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | if (writer) { |
| 542 | /* Close targets and tracker_id elements */ |
| 543 | ret = mi_lttng_close_multi_element(writer, 2); |
| 544 | if (ret) { |
| 545 | retval = CMD_ERROR; |
| 546 | goto end; |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | end: |
| 551 | if (handle) { |
| 552 | lttng_destroy_handle(handle); |
| 553 | } |
| 554 | free_id_list(id_list); |
| 555 | return retval; |
| 556 | } |
| 557 | |
| 558 | static |
| 559 | const char *get_mi_element_command(enum cmd_type cmd_type) |
| 560 | { |
| 561 | switch (cmd_type) { |
| 562 | case CMD_TRACK: |
| 563 | return mi_lttng_element_command_track; |
| 564 | case CMD_UNTRACK: |
| 565 | return mi_lttng_element_command_untrack; |
| 566 | default: |
| 567 | return NULL; |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | static void print_err_duplicate(const char *type) |
| 572 | { |
| 573 | ERR("The --%s option can only be used once. A list of comma-separated values can be specified.", |
| 574 | type); |
| 575 | } |
| 576 | |
| 577 | /* |
| 578 | * Add/remove tracker to/from session. |
| 579 | */ |
| 580 | static |
| 581 | int cmd_track_untrack(enum cmd_type cmd_type, const char *cmd_str, |
| 582 | int argc, const char **argv, const char *help_msg) |
| 583 | { |
| 584 | int opt, ret = 0, success = 1; |
| 585 | bool opt_all_present = false; |
| 586 | enum cmd_error_code command_ret = CMD_SUCCESS; |
| 587 | static poptContext pc; |
| 588 | char *session_name = NULL; |
| 589 | const char *leftover = NULL; |
| 590 | struct mi_writer *writer = NULL; |
| 591 | |
| 592 | if (argc < 1) { |
| 593 | command_ret = CMD_ERROR; |
| 594 | goto end; |
| 595 | } |
| 596 | |
| 597 | pc = poptGetContext(NULL, argc, argv, long_options, 0); |
| 598 | poptReadDefaultConfig(pc, 0); |
| 599 | |
| 600 | while ((opt = poptGetNextOpt(pc)) != -1) { |
| 601 | switch (opt) { |
| 602 | case OPT_HELP: |
| 603 | SHOW_HELP(); |
| 604 | goto end; |
| 605 | case OPT_LIST_OPTIONS: |
| 606 | list_cmd_options(stdout, long_options); |
| 607 | goto end; |
| 608 | case OPT_SESSION: |
| 609 | break; |
| 610 | case OPT_PID: |
| 611 | if (opt_pid.used) { |
| 612 | print_err_duplicate("pid"); |
| 613 | command_ret = CMD_ERROR; |
| 614 | goto end; |
| 615 | } |
| 616 | opt_pid.used = 1; |
| 617 | type_state = STATE_PID; |
| 618 | break; |
| 619 | case OPT_VPID: |
| 620 | if (opt_vpid.used) { |
| 621 | print_err_duplicate("vpid"); |
| 622 | command_ret = CMD_ERROR; |
| 623 | goto end; |
| 624 | } |
| 625 | opt_vpid.used = 1; |
| 626 | type_state = STATE_VPID; |
| 627 | break; |
| 628 | case OPT_UID: |
| 629 | if (opt_uid.used) { |
| 630 | print_err_duplicate("uid"); |
| 631 | command_ret = CMD_ERROR; |
| 632 | goto end; |
| 633 | } |
| 634 | opt_uid.used = 1; |
| 635 | type_state = STATE_UID; |
| 636 | break; |
| 637 | case OPT_VUID: |
| 638 | if (opt_vuid.used) { |
| 639 | print_err_duplicate("vuid"); |
| 640 | command_ret = CMD_ERROR; |
| 641 | goto end; |
| 642 | } |
| 643 | opt_vuid.used = 1; |
| 644 | type_state = STATE_VUID; |
| 645 | break; |
| 646 | case OPT_GID: |
| 647 | if (opt_gid.used) { |
| 648 | print_err_duplicate("gid"); |
| 649 | command_ret = CMD_ERROR; |
| 650 | goto end; |
| 651 | } |
| 652 | opt_gid.used = 1; |
| 653 | type_state = STATE_GID; |
| 654 | break; |
| 655 | case OPT_VGID: |
| 656 | if (opt_vgid.used) { |
| 657 | print_err_duplicate("vgid"); |
| 658 | command_ret = CMD_ERROR; |
| 659 | goto end; |
| 660 | } |
| 661 | opt_vgid.used = 1; |
| 662 | type_state = STATE_VGID; |
| 663 | break; |
| 664 | case OPT_ALL: |
| 665 | opt_all_present = true; |
| 666 | break; |
| 667 | default: |
| 668 | command_ret = CMD_UNDEFINED; |
| 669 | goto end; |
| 670 | } |
| 671 | } |
| 672 | |
| 673 | ret = print_missing_or_multiple_domains(opt_kernel + opt_userspace); |
| 674 | if (ret) { |
| 675 | command_ret = CMD_ERROR; |
| 676 | goto end; |
| 677 | } |
| 678 | |
| 679 | /* |
| 680 | * If the `--all` option is present set the appropriate tracker's `all` |
| 681 | * field. |
| 682 | */ |
| 683 | if (opt_all_present) { |
| 684 | switch (type_state) { |
| 685 | case STATE_PID: |
| 686 | opt_pid.all = 1; |
| 687 | break; |
| 688 | case STATE_VPID: |
| 689 | opt_vpid.all = 1; |
| 690 | break; |
| 691 | case STATE_UID: |
| 692 | opt_uid.all = 1; |
| 693 | break; |
| 694 | case STATE_VUID: |
| 695 | opt_vuid.all = 1; |
| 696 | break; |
| 697 | case STATE_GID: |
| 698 | opt_gid.all = 1; |
| 699 | break; |
| 700 | case STATE_VGID: |
| 701 | opt_vgid.all = 1; |
| 702 | break; |
| 703 | default: |
| 704 | command_ret = CMD_ERROR; |
| 705 | goto end; |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | if (!opt_session_name) { |
| 710 | session_name = get_session_name(); |
| 711 | if (session_name == NULL) { |
| 712 | command_ret = CMD_ERROR; |
| 713 | goto end; |
| 714 | } |
| 715 | } else { |
| 716 | session_name = opt_session_name; |
| 717 | } |
| 718 | |
| 719 | leftover = poptGetArg(pc); |
| 720 | if (leftover) { |
| 721 | ERR("Unknown argument: %s", leftover); |
| 722 | command_ret = CMD_ERROR; |
| 723 | goto end; |
| 724 | } |
| 725 | |
| 726 | /* Mi check */ |
| 727 | if (lttng_opt_mi) { |
| 728 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); |
| 729 | if (!writer) { |
| 730 | command_ret = CMD_ERROR; |
| 731 | goto end; |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | if (writer) { |
| 736 | /* Open command element */ |
| 737 | ret = mi_lttng_writer_command_open(writer, |
| 738 | get_mi_element_command(cmd_type)); |
| 739 | if (ret) { |
| 740 | command_ret = CMD_ERROR; |
| 741 | goto end; |
| 742 | } |
| 743 | |
| 744 | /* Open output element */ |
| 745 | ret = mi_lttng_writer_open_element(writer, |
| 746 | mi_lttng_element_command_output); |
| 747 | if (ret) { |
| 748 | command_ret = CMD_ERROR; |
| 749 | goto end; |
| 750 | } |
| 751 | |
| 752 | ret = mi_lttng_trackers_open(writer); |
| 753 | if (ret) { |
| 754 | goto end; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (opt_pid.used) { |
| 759 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 760 | opt_pid.string, opt_pid.all, writer, |
| 761 | LTTNG_TRACKER_PID); |
| 762 | if (command_ret != CMD_SUCCESS) { |
| 763 | success = 0; |
| 764 | } |
| 765 | } |
| 766 | if (opt_vpid.used) { |
| 767 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 768 | opt_vpid.string, opt_vpid.all, writer, |
| 769 | LTTNG_TRACKER_VPID); |
| 770 | if (command_ret != CMD_SUCCESS) { |
| 771 | success = 0; |
| 772 | } |
| 773 | } |
| 774 | if (opt_uid.used) { |
| 775 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 776 | opt_uid.string, opt_uid.all, writer, |
| 777 | LTTNG_TRACKER_UID); |
| 778 | if (command_ret != CMD_SUCCESS) { |
| 779 | success = 0; |
| 780 | } |
| 781 | } |
| 782 | if (opt_vuid.used) { |
| 783 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 784 | opt_vuid.string, opt_vuid.all, writer, |
| 785 | LTTNG_TRACKER_VUID); |
| 786 | if (command_ret != CMD_SUCCESS) { |
| 787 | success = 0; |
| 788 | } |
| 789 | } |
| 790 | if (opt_gid.used) { |
| 791 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 792 | opt_gid.string, opt_gid.all, writer, |
| 793 | LTTNG_TRACKER_GID); |
| 794 | if (command_ret != CMD_SUCCESS) { |
| 795 | success = 0; |
| 796 | } |
| 797 | } |
| 798 | if (opt_vgid.used) { |
| 799 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, |
| 800 | opt_vgid.string, opt_vgid.all, writer, |
| 801 | LTTNG_TRACKER_VGID); |
| 802 | if (command_ret != CMD_SUCCESS) { |
| 803 | success = 0; |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | /* Mi closing */ |
| 808 | if (writer) { |
| 809 | /* Close trackers and output elements */ |
| 810 | ret = mi_lttng_close_multi_element(writer, 2); |
| 811 | if (ret) { |
| 812 | command_ret = CMD_ERROR; |
| 813 | goto end; |
| 814 | } |
| 815 | |
| 816 | /* Success ? */ |
| 817 | ret = mi_lttng_writer_write_element_bool(writer, |
| 818 | mi_lttng_element_command_success, success); |
| 819 | if (ret) { |
| 820 | command_ret = CMD_ERROR; |
| 821 | goto end; |
| 822 | } |
| 823 | |
| 824 | /* Command element close */ |
| 825 | ret = mi_lttng_writer_command_close(writer); |
| 826 | if (ret) { |
| 827 | command_ret = CMD_ERROR; |
| 828 | goto end; |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | end: |
| 833 | if (!opt_session_name) { |
| 834 | free(session_name); |
| 835 | } |
| 836 | |
| 837 | /* Mi clean-up */ |
| 838 | if (writer && mi_lttng_writer_destroy(writer)) { |
| 839 | /* Preserve original error code */ |
| 840 | command_ret = CMD_ERROR; |
| 841 | } |
| 842 | |
| 843 | poptFreeContext(pc); |
| 844 | return (int) command_ret; |
| 845 | } |
| 846 | |
| 847 | int cmd_track(int argc, const char **argv) |
| 848 | { |
| 849 | static const char *help_msg = |
| 850 | #ifdef LTTNG_EMBED_HELP |
| 851 | #include <lttng-track.1.h> |
| 852 | #else |
| 853 | NULL |
| 854 | #endif |
| 855 | ; |
| 856 | |
| 857 | return cmd_track_untrack(CMD_TRACK, "track", argc, argv, help_msg); |
| 858 | } |
| 859 | |
| 860 | int cmd_untrack(int argc, const char **argv) |
| 861 | { |
| 862 | static const char *help_msg = |
| 863 | #ifdef LTTNG_EMBED_HELP |
| 864 | #include <lttng-untrack.1.h> |
| 865 | #else |
| 866 | NULL |
| 867 | #endif |
| 868 | ; |
| 869 | |
| 870 | return cmd_track_untrack(CMD_UNTRACK, "untrack", argc, argv, help_msg); |
| 871 | } |