| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
| 3 | * Copyright (C) 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License, version 2 only, |
| 7 | * as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | #define _LGPL_SOURCE |
| 20 | #include <ctype.h> |
| 21 | #include <popt.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <sys/types.h> |
| 27 | #include <unistd.h> |
| 28 | #include <assert.h> |
| 29 | |
| 30 | #include <urcu/list.h> |
| 31 | |
| 32 | #include <common/mi-lttng.h> |
| 33 | |
| 34 | #include "../command.h" |
| 35 | |
| 36 | enum cmd_type { |
| 37 | CMD_TRACK, |
| 38 | CMD_UNTRACK, |
| 39 | }; |
| 40 | |
| 41 | enum tracker_type_state { |
| 42 | STATE_NONE = 0, |
| 43 | STATE_PID, |
| 44 | STATE_VPID, |
| 45 | STATE_UID, |
| 46 | STATE_VUID, |
| 47 | STATE_GID, |
| 48 | STATE_VGID, |
| 49 | }; |
| 50 | |
| 51 | struct opt_type { |
| 52 | int used; |
| 53 | int all; |
| 54 | char *string; |
| 55 | }; |
| 56 | |
| 57 | struct id_list { |
| 58 | size_t nr; |
| 59 | struct lttng_tracker_id *array; |
| 60 | }; |
| 61 | |
| 62 | static char *opt_session_name; |
| 63 | static int opt_kernel; |
| 64 | static int opt_userspace; |
| 65 | |
| 66 | static struct opt_type opt_pid, opt_vpid, opt_uid, opt_vuid, opt_gid, opt_vgid; |
| 67 | |
| 68 | static enum tracker_type_state type_state; |
| 69 | |
| 70 | enum { |
| 71 | OPT_HELP = 1, |
| 72 | OPT_LIST_OPTIONS, |
| 73 | OPT_SESSION, |
| 74 | OPT_PID, |
| 75 | OPT_VPID, |
| 76 | OPT_UID, |
| 77 | OPT_VUID, |
| 78 | OPT_GID, |
| 79 | OPT_VGID, |
| 80 | OPT_ALL, |
| 81 | }; |
| 82 | |
| 83 | static struct poptOption long_options[] = { |
| 84 | /* { longName, shortName, argInfo, argPtr, value, descrip, argDesc, } */ |
| 85 | { "help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0, }, |
| 86 | { "session", 's', POPT_ARG_STRING, &opt_session_name, OPT_SESSION, 0, 0, }, |
| 87 | { "kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0, }, |
| 88 | { "userspace", 'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0, }, |
| 89 | { "pid", 'p', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_pid.string, OPT_PID, 0, 0, }, |
| 90 | { "vpid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vpid.string, OPT_VPID, 0, 0, }, |
| 91 | { "uid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_uid.string, OPT_UID, 0, 0, }, |
| 92 | { "vuid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vuid.string, OPT_VUID, 0, 0, }, |
| 93 | { "gid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_gid.string, OPT_GID, 0, 0, }, |
| 94 | { "vgid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vgid.string, OPT_VGID, 0, 0, }, |
| 95 | { "all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0, }, |
| 96 | { "list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, 0, 0, }, |
| 97 | { 0, 0, 0, 0, 0, 0, 0, }, |
| 98 | }; |
| 99 | |
| 100 | static |
| 101 | struct id_list *alloc_id_list(size_t nr_items) |
| 102 | { |
| 103 | struct id_list *id_list; |
| 104 | struct lttng_tracker_id *items; |
| 105 | |
| 106 | id_list = zmalloc(sizeof(*id_list)); |
| 107 | if (!id_list) { |
| 108 | return NULL; |
| 109 | } |
| 110 | items = zmalloc(nr_items * sizeof(*items)); |
| 111 | if (!items) { |
| 112 | goto error; |
| 113 | } |
| 114 | id_list->nr = nr_items; |
| 115 | id_list->array = items; |
| 116 | return id_list; |
| 117 | error: |
| 118 | free(id_list); |
| 119 | return NULL; |
| 120 | } |
| 121 | |
| 122 | static |
| 123 | void free_id_list(struct id_list *list) |
| 124 | { |
| 125 | size_t nr_items; |
| 126 | int i; |
| 127 | |
| 128 | if (!list) |
| 129 | return; |
| 130 | nr_items = list->nr; |
| 131 | for (i = 0; i < nr_items; i++) { |
| 132 | struct lttng_tracker_id *item = &list->array[i]; |
| 133 | |
| 134 | free(item->string); |
| 135 | } |
| 136 | free(list); |
| 137 | } |
| 138 | |
| 139 | static |
| 140 | int parse_id_string(const char *_id_string, |
| 141 | int all, struct id_list **_id_list) |
| 142 | { |
| 143 | const char *one_id_str; |
| 144 | char *iter; |
| 145 | int retval = CMD_SUCCESS; |
| 146 | int count = 0; |
| 147 | struct id_list *id_list = NULL; |
| 148 | char *id_string = NULL; |
| 149 | char *endptr; |
| 150 | |
| 151 | if (all && _id_string) { |
| 152 | ERR("An empty ID string is expected with --all"); |
| 153 | retval = CMD_ERROR; |
| 154 | goto error; |
| 155 | } |
| 156 | if (!all && !_id_string) { |
| 157 | ERR("Please specify --all with an empty ID string"); |
| 158 | retval = CMD_ERROR; |
| 159 | goto error; |
| 160 | } |
| 161 | if (all) { |
| 162 | /* Empty ID string means all IDs */ |
| 163 | id_list = alloc_id_list(1); |
| 164 | if (!id_list) { |
| 165 | ERR("Out of memory"); |
| 166 | retval = CMD_ERROR; |
| 167 | goto error; |
| 168 | } |
| 169 | id_list->array[0].type = LTTNG_ID_ALL; |
| 170 | goto assign; |
| 171 | } |
| 172 | |
| 173 | id_string = strdup(_id_string); |
| 174 | if (!id_string) { |
| 175 | ERR("Out of memory"); |
| 176 | retval = CMD_ERROR; |
| 177 | goto error; |
| 178 | } |
| 179 | |
| 180 | /* Count */ |
| 181 | one_id_str = strtok_r(id_string, ",", &iter); |
| 182 | while (one_id_str != NULL) { |
| 183 | unsigned long v; |
| 184 | |
| 185 | if (isdigit(one_id_str[0])) { |
| 186 | errno = 0; |
| 187 | v = strtoul(one_id_str, &endptr, 10); |
| 188 | if ((v == 0 && errno == EINVAL) |
| 189 | || (v == ULONG_MAX && errno == ERANGE) |
| 190 | || (*one_id_str != '\0' && *endptr != '\0')){ |
| 191 | ERR("Error parsing ID %s", one_id_str); |
| 192 | retval = CMD_ERROR; |
| 193 | goto error; |
| 194 | } |
| 195 | |
| 196 | if ((long) v > INT_MAX || (int) v < 0) { |
| 197 | ERR("Invalid ID value %ld", (long) v); |
| 198 | retval = CMD_ERROR; |
| 199 | goto error; |
| 200 | } |
| 201 | } |
| 202 | count++; |
| 203 | |
| 204 | /* For next loop */ |
| 205 | one_id_str = strtok_r(NULL, ",", &iter); |
| 206 | } |
| 207 | |
| 208 | free(id_string); |
| 209 | /* Identity of delimiter has been lost in first pass. */ |
| 210 | id_string = strdup(_id_string); |
| 211 | if (!id_string) { |
| 212 | ERR("Out of memory"); |
| 213 | retval = CMD_ERROR; |
| 214 | goto error; |
| 215 | } |
| 216 | |
| 217 | /* Allocate */ |
| 218 | id_list = alloc_id_list(count); |
| 219 | if (!id_list) { |
| 220 | ERR("Out of memory"); |
| 221 | retval = CMD_ERROR; |
| 222 | goto error; |
| 223 | } |
| 224 | |
| 225 | /* Reparse string and populate the id list. */ |
| 226 | count = 0; |
| 227 | one_id_str = strtok_r(id_string, ",", &iter); |
| 228 | while (one_id_str != NULL) { |
| 229 | struct lttng_tracker_id *item; |
| 230 | |
| 231 | item = &id_list->array[count++]; |
| 232 | if (isdigit(one_id_str[0])) { |
| 233 | unsigned long v; |
| 234 | |
| 235 | v = strtoul(one_id_str, NULL, 10); |
| 236 | item->type = LTTNG_ID_VALUE; |
| 237 | item->value = (int) v; |
| 238 | } else { |
| 239 | item->type = LTTNG_ID_STRING; |
| 240 | item->string = strdup(one_id_str); |
| 241 | if (!item->string) { |
| 242 | ERR("Out of memory"); |
| 243 | retval = CMD_ERROR; |
| 244 | goto error; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | /* For next loop */ |
| 249 | one_id_str = strtok_r(NULL, ",", &iter); |
| 250 | } |
| 251 | |
| 252 | assign: |
| 253 | *_id_list = id_list; |
| 254 | goto end; /* SUCCESS */ |
| 255 | |
| 256 | /* ERROR */ |
| 257 | error: |
| 258 | free_id_list(id_list); |
| 259 | end: |
| 260 | free(id_string); |
| 261 | return retval; |
| 262 | } |
| 263 | |
| 264 | static |
| 265 | const char *get_tracker_str(enum lttng_tracker_type tracker_type) |
| 266 | { |
| 267 | switch (tracker_type) { |
| 268 | case LTTNG_TRACKER_PID: |
| 269 | return "PID"; |
| 270 | case LTTNG_TRACKER_VPID: |
| 271 | return "VPID"; |
| 272 | case LTTNG_TRACKER_UID: |
| 273 | return "UID"; |
| 274 | case LTTNG_TRACKER_VUID: |
| 275 | return "VUID"; |
| 276 | case LTTNG_TRACKER_GID: |
| 277 | return "GID"; |
| 278 | case LTTNG_TRACKER_VGID: |
| 279 | return "VGID"; |
| 280 | } |
| 281 | return NULL; |
| 282 | } |
| 283 | |
| 284 | static |
| 285 | enum cmd_error_code track_untrack_id(enum cmd_type cmd_type, const char *cmd_str, |
| 286 | const char *session_name, const char *id_string, |
| 287 | int all, struct mi_writer *writer, |
| 288 | enum lttng_tracker_type tracker_type) |
| 289 | { |
| 290 | int ret, success = 1 , i; |
| 291 | enum cmd_error_code retval = CMD_SUCCESS; |
| 292 | struct id_list *id_list = NULL; |
| 293 | struct lttng_domain dom; |
| 294 | struct lttng_handle *handle = NULL; |
| 295 | int (*cmd_func)(struct lttng_handle *handle, |
| 296 | enum lttng_tracker_type tracker_type, |
| 297 | struct lttng_tracker_id *id); |
| 298 | const char *tracker_str; |
| 299 | |
| 300 | switch (cmd_type) { |
| 301 | case CMD_TRACK: |
| 302 | cmd_func = lttng_track_id; |
| 303 | break; |
| 304 | case CMD_UNTRACK: |
| 305 | cmd_func = lttng_untrack_id; |
| 306 | break; |
| 307 | default: |
| 308 | ERR("Unknown command"); |
| 309 | retval = CMD_ERROR; |
| 310 | goto end; |
| 311 | } |
| 312 | memset(&dom, 0, sizeof(dom)); |
| 313 | if (opt_kernel) { |
| 314 | dom.type = LTTNG_DOMAIN_KERNEL; |
| 315 | } else if (opt_userspace) { |
| 316 | dom.type = LTTNG_DOMAIN_UST; |
| 317 | if (tracker_type == LTTNG_TRACKER_PID) { |
| 318 | MSG("For UST domain, the PID tracker is actually tracking VPID."); |
| 319 | tracker_type = LTTNG_TRACKER_VPID; |
| 320 | } |
| 321 | } else { |
| 322 | /* Checked by the caller. */ |
| 323 | assert(0); |
| 324 | } |
| 325 | tracker_str = get_tracker_str(tracker_type); |
| 326 | if (!tracker_str) { |
| 327 | ERR("Unknown tracker type"); |
| 328 | retval = CMD_ERROR; |
| 329 | goto end; |
| 330 | } |
| 331 | ret = parse_id_string(id_string, all, &id_list); |
| 332 | if (ret != CMD_SUCCESS) { |
| 333 | ERR("Error parsing %s string", tracker_str); |
| 334 | retval = CMD_ERROR; |
| 335 | goto end; |
| 336 | } |
| 337 | |
| 338 | handle = lttng_create_handle(session_name, &dom); |
| 339 | if (handle == NULL) { |
| 340 | retval = CMD_ERROR; |
| 341 | goto end; |
| 342 | } |
| 343 | |
| 344 | if (writer) { |
| 345 | /* Open tracker_id and targets elements */ |
| 346 | ret = mi_lttng_id_tracker_open(writer, tracker_type); |
| 347 | if (ret) { |
| 348 | goto end; |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | for (i = 0; i < id_list->nr; i++) { |
| 353 | struct lttng_tracker_id *item = &id_list->array[i]; |
| 354 | |
| 355 | switch (item->type) { |
| 356 | case LTTNG_ID_ALL: |
| 357 | DBG("%s all IDs", cmd_str); |
| 358 | break; |
| 359 | case LTTNG_ID_VALUE: |
| 360 | DBG("%s ID %d", cmd_str, item->value); |
| 361 | break; |
| 362 | case LTTNG_ID_STRING: |
| 363 | DBG("%s ID '%s'", cmd_str, item->string); |
| 364 | break; |
| 365 | default: |
| 366 | retval = CMD_ERROR; |
| 367 | goto end; |
| 368 | } |
| 369 | ret = cmd_func(handle, tracker_type, item); |
| 370 | if (ret) { |
| 371 | char *msg = NULL; |
| 372 | |
| 373 | switch (-ret) { |
| 374 | case LTTNG_ERR_ID_TRACKED: |
| 375 | msg = "already tracked"; |
| 376 | success = 1; |
| 377 | retval = CMD_SUCCESS; |
| 378 | break; |
| 379 | case LTTNG_ERR_ID_NOT_TRACKED: |
| 380 | msg = "not tracked"; |
| 381 | success = 1; |
| 382 | retval = CMD_SUCCESS; |
| 383 | break; |
| 384 | default: |
| 385 | ERR("%s", lttng_strerror(ret)); |
| 386 | success = 0; |
| 387 | retval = CMD_ERROR; |
| 388 | break; |
| 389 | } |
| 390 | if (msg) { |
| 391 | switch (item->type) { |
| 392 | case LTTNG_ID_ALL: |
| 393 | WARN("All %s %s in session %s", |
| 394 | tracker_str, msg, session_name); |
| 395 | break; |
| 396 | case LTTNG_ID_VALUE: |
| 397 | WARN("%s %i %s in session %s", |
| 398 | tracker_str, item->value, |
| 399 | msg, session_name); |
| 400 | break; |
| 401 | case LTTNG_ID_STRING: |
| 402 | WARN("%s '%s' %s in session %s", |
| 403 | tracker_str, item->string, |
| 404 | msg, session_name); |
| 405 | break; |
| 406 | default: |
| 407 | retval = CMD_ERROR; |
| 408 | goto end; |
| 409 | } |
| 410 | } |
| 411 | } else { |
| 412 | switch (item->type) { |
| 413 | case LTTNG_ID_ALL: |
| 414 | MSG("All %ss %sed in session %s", |
| 415 | tracker_str, cmd_str, session_name); |
| 416 | break; |
| 417 | case LTTNG_ID_VALUE: |
| 418 | MSG("%s %i %sed in session %s", |
| 419 | tracker_str, item->value, cmd_str, |
| 420 | session_name); |
| 421 | break; |
| 422 | case LTTNG_ID_STRING: |
| 423 | MSG("%s '%s' %sed in session %s", |
| 424 | tracker_str, item->string, cmd_str, |
| 425 | session_name); |
| 426 | break; |
| 427 | default: |
| 428 | retval = CMD_ERROR; |
| 429 | goto end; |
| 430 | } |
| 431 | success = 1; |
| 432 | } |
| 433 | |
| 434 | /* Mi */ |
| 435 | if (writer) { |
| 436 | ret = mi_lttng_id_target(writer, |
| 437 | tracker_type, item, 1); |
| 438 | if (ret) { |
| 439 | retval = CMD_ERROR; |
| 440 | goto end; |
| 441 | } |
| 442 | |
| 443 | ret = mi_lttng_writer_write_element_bool(writer, |
| 444 | mi_lttng_element_success, success); |
| 445 | if (ret) { |
| 446 | retval = CMD_ERROR; |
| 447 | goto end; |
| 448 | } |
| 449 | |
| 450 | ret = mi_lttng_writer_close_element(writer); |
| 451 | if (ret) { |
| 452 | retval = CMD_ERROR; |
| 453 | goto end; |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | if (writer) { |
| 459 | /* Close targets and tracker_id elements */ |
| 460 | ret = mi_lttng_close_multi_element(writer, 2); |
| 461 | if (ret) { |
| 462 | retval = CMD_ERROR; |
| 463 | goto end; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | end: |
| 468 | if (handle) { |
| 469 | lttng_destroy_handle(handle); |
| 470 | } |
| 471 | free_id_list(id_list); |
| 472 | return retval; |
| 473 | } |
| 474 | |
| 475 | static |
| 476 | const char *get_mi_element_command(enum cmd_type cmd_type) |
| 477 | { |
| 478 | switch (cmd_type) { |
| 479 | case CMD_TRACK: |
| 480 | return mi_lttng_element_command_track; |
| 481 | case CMD_UNTRACK: |
| 482 | return mi_lttng_element_command_untrack; |
| 483 | default: |
| 484 | return NULL; |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | /* |
| 489 | * Add/remove tracker to/from session. |
| 490 | */ |
| 491 | static |
| 492 | int cmd_track_untrack(enum cmd_type cmd_type, const char *cmd_str, |
| 493 | int argc, const char **argv) |
| 494 | { |
| 495 | int opt, ret = 0; |
| 496 | enum cmd_error_code command_ret = CMD_SUCCESS; |
| 497 | int success = 1; |
| 498 | static poptContext pc; |
| 499 | char *session_name = NULL; |
| 500 | struct mi_writer *writer = NULL; |
| 501 | |
| 502 | if (argc < 1) { |
| 503 | command_ret = CMD_ERROR; |
| 504 | goto end; |
| 505 | } |
| 506 | |
| 507 | pc = poptGetContext(NULL, argc, argv, long_options, 0); |
| 508 | poptReadDefaultConfig(pc, 0); |
| 509 | |
| 510 | while ((opt = poptGetNextOpt(pc)) != -1) { |
| 511 | switch (opt) { |
| 512 | case OPT_HELP: |
| 513 | SHOW_HELP(); |
| 514 | goto end; |
| 515 | case OPT_LIST_OPTIONS: |
| 516 | list_cmd_options(stdout, long_options); |
| 517 | goto end; |
| 518 | case OPT_SESSION: |
| 519 | break; |
| 520 | case OPT_PID: |
| 521 | opt_pid.used = 1; |
| 522 | type_state = STATE_PID; |
| 523 | break; |
| 524 | case OPT_VPID: |
| 525 | opt_vpid.used = 1; |
| 526 | type_state = STATE_VPID; |
| 527 | break; |
| 528 | case OPT_UID: |
| 529 | opt_uid.used = 1; |
| 530 | type_state = STATE_UID; |
| 531 | break; |
| 532 | case OPT_VUID: |
| 533 | opt_vuid.used = 1; |
| 534 | type_state = STATE_VUID; |
| 535 | break; |
| 536 | case OPT_GID: |
| 537 | opt_gid.used = 1; |
| 538 | type_state = STATE_GID; |
| 539 | break; |
| 540 | case OPT_VGID: |
| 541 | opt_vgid.used = 1; |
| 542 | type_state = STATE_VGID; |
| 543 | break; |
| 544 | case OPT_ALL: |
| 545 | switch (type_state) { |
| 546 | case STATE_PID: |
| 547 | opt_pid.all = 1; |
| 548 | break; |
| 549 | case STATE_VPID: |
| 550 | opt_vpid.all = 1; |
| 551 | break; |
| 552 | case STATE_UID: |
| 553 | opt_uid.all = 1; |
| 554 | break; |
| 555 | case STATE_VUID: |
| 556 | opt_vuid.all = 1; |
| 557 | break; |
| 558 | case STATE_GID: |
| 559 | opt_gid.all = 1; |
| 560 | break; |
| 561 | case STATE_VGID: |
| 562 | opt_vgid.all = 1; |
| 563 | break; |
| 564 | default: |
| 565 | command_ret = CMD_ERROR; |
| 566 | goto end; |
| 567 | } |
| 568 | break; |
| 569 | default: |
| 570 | command_ret = CMD_UNDEFINED; |
| 571 | goto end; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | ret = print_missing_or_multiple_domains(opt_kernel + opt_userspace); |
| 576 | if (ret) { |
| 577 | command_ret = CMD_ERROR; |
| 578 | goto end; |
| 579 | } |
| 580 | |
| 581 | if (!opt_session_name) { |
| 582 | session_name = get_session_name(); |
| 583 | if (session_name == NULL) { |
| 584 | command_ret = CMD_ERROR; |
| 585 | goto end; |
| 586 | } |
| 587 | } else { |
| 588 | session_name = opt_session_name; |
| 589 | } |
| 590 | |
| 591 | /* Mi check */ |
| 592 | if (lttng_opt_mi) { |
| 593 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); |
| 594 | if (!writer) { |
| 595 | command_ret = CMD_ERROR; |
| 596 | goto end; |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | if (writer) { |
| 601 | /* Open command element */ |
| 602 | ret = mi_lttng_writer_command_open(writer, |
| 603 | get_mi_element_command(cmd_type)); |
| 604 | if (ret) { |
| 605 | command_ret = CMD_ERROR; |
| 606 | goto end; |
| 607 | } |
| 608 | |
| 609 | /* Open output element */ |
| 610 | ret = mi_lttng_writer_open_element(writer, |
| 611 | mi_lttng_element_command_output); |
| 612 | if (ret) { |
| 613 | command_ret = CMD_ERROR; |
| 614 | goto end; |
| 615 | } |
| 616 | |
| 617 | ret = mi_lttng_trackers_open(writer); |
| 618 | if (ret) { |
| 619 | goto end; |
| 620 | } |
| 621 | } |
| 622 | |
| 623 | if (opt_pid.used) { |
| 624 | command_ret = track_untrack_id(cmd_type, |
| 625 | cmd_str, session_name, opt_pid.string, |
| 626 | opt_pid.all, writer, LTTNG_TRACKER_PID); |
| 627 | if (command_ret != CMD_SUCCESS) { |
| 628 | success = 0; |
| 629 | } |
| 630 | } |
| 631 | if (opt_vpid.used) { |
| 632 | command_ret = track_untrack_id(cmd_type, |
| 633 | cmd_str, session_name, opt_vpid.string, |
| 634 | opt_vpid.all, writer, LTTNG_TRACKER_VPID); |
| 635 | if (command_ret != CMD_SUCCESS) { |
| 636 | success = 0; |
| 637 | } |
| 638 | } |
| 639 | if (opt_uid.used) { |
| 640 | command_ret = track_untrack_id(cmd_type, |
| 641 | cmd_str, session_name, opt_uid.string, |
| 642 | opt_uid.all, writer, LTTNG_TRACKER_UID); |
| 643 | if (command_ret != CMD_SUCCESS) { |
| 644 | success = 0; |
| 645 | } |
| 646 | } |
| 647 | if (opt_vuid.used) { |
| 648 | command_ret = track_untrack_id(cmd_type, |
| 649 | cmd_str, session_name, opt_vuid.string, |
| 650 | opt_vuid.all, writer, LTTNG_TRACKER_VUID); |
| 651 | if (command_ret != CMD_SUCCESS) { |
| 652 | success = 0; |
| 653 | } |
| 654 | } |
| 655 | if (opt_gid.used) { |
| 656 | command_ret = track_untrack_id(cmd_type, |
| 657 | cmd_str, session_name, opt_gid.string, |
| 658 | opt_gid.all, writer, LTTNG_TRACKER_GID); |
| 659 | if (command_ret != CMD_SUCCESS) { |
| 660 | success = 0; |
| 661 | } |
| 662 | } |
| 663 | if (opt_vgid.used) { |
| 664 | command_ret = track_untrack_id(cmd_type, |
| 665 | cmd_str, session_name, opt_vgid.string, |
| 666 | opt_vgid.all, writer, LTTNG_TRACKER_VGID); |
| 667 | if (command_ret != CMD_SUCCESS) { |
| 668 | success = 0; |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | /* Mi closing */ |
| 673 | if (writer) { |
| 674 | /* Close trackers and output elements */ |
| 675 | ret = mi_lttng_close_multi_element(writer, 2); |
| 676 | if (ret) { |
| 677 | command_ret = CMD_ERROR; |
| 678 | goto end; |
| 679 | } |
| 680 | |
| 681 | /* Success ? */ |
| 682 | ret = mi_lttng_writer_write_element_bool(writer, |
| 683 | mi_lttng_element_command_success, success); |
| 684 | if (ret) { |
| 685 | command_ret = CMD_ERROR; |
| 686 | goto end; |
| 687 | } |
| 688 | |
| 689 | /* Command element close */ |
| 690 | ret = mi_lttng_writer_command_close(writer); |
| 691 | if (ret) { |
| 692 | command_ret = CMD_ERROR; |
| 693 | goto end; |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | end: |
| 698 | if (!opt_session_name) { |
| 699 | free(session_name); |
| 700 | } |
| 701 | |
| 702 | /* Mi clean-up */ |
| 703 | if (writer && mi_lttng_writer_destroy(writer)) { |
| 704 | /* Preserve original error code */ |
| 705 | command_ret = CMD_ERROR; |
| 706 | } |
| 707 | |
| 708 | poptFreeContext(pc); |
| 709 | return (int) command_ret; |
| 710 | } |
| 711 | |
| 712 | int cmd_track(int argc, const char **argv) |
| 713 | { |
| 714 | return cmd_track_untrack(CMD_TRACK, "track", argc, argv); |
| 715 | } |
| 716 | |
| 717 | int cmd_untrack(int argc, const char **argv) |
| 718 | { |
| 719 | return cmd_track_untrack(CMD_UNTRACK, "untrack", argc, argv); |
| 720 | } |