--- /dev/null
+#include <stdio.h>
+
+#include "../command.h"
+
+#include "common/argpar/argpar.h"
+#include "common/mi-lttng.h"
+#include "lttng/condition/condition-internal.h"
+#include "lttng/condition/event-rule.h"
+#include "lttng/domain-internal.h"
+#include "lttng/event-rule/event-rule-internal.h"
+#include "lttng/event-rule/kprobe.h"
+#include "lttng/event-rule/kprobe-internal.h"
+#include "lttng/event-rule/syscall.h"
+#include "lttng/event-rule/tracepoint.h"
+#include "lttng/event-rule/uprobe.h"
+#include "lttng/trigger/trigger-internal.h"
+
+#ifdef LTTNG_EMBED_HELP
+static const char help_msg[] =
+#include <lttng-list-trigger.1.h>
+;
+#endif
+
+enum {
+ OPT_HELP,
+ OPT_LIST_OPTIONS,
+};
+
+static const
+struct argpar_opt_descr list_trigger_options[] = {
+ { OPT_HELP, 'h', "help", false },
+ { OPT_LIST_OPTIONS, '\0', "list-options", false },
+ ARGPAR_OPT_DESCR_SENTINEL,
+};
+
+static
+void print_event_rule_tracepoint(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_domain_type domain_type;
+ const char *pattern;
+ const char *filter;
+ int loglevel;
+ unsigned int exclusions_count;
+ int i;
+
+ event_rule_status = lttng_event_rule_tracepoint_get_pattern(
+ event_rule, &pattern);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ event_rule_status = lttng_event_rule_tracepoint_get_domain_type(
+ event_rule, &domain_type);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ printf(" rule: %s (type: tracepoint, domain: %s", pattern,
+ lttng_domain_type_str(domain_type));
+
+ event_rule_status = lttng_event_rule_tracepoint_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ printf(", filter: %s", filter);
+ } else {
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ event_rule_status = lttng_event_rule_tracepoint_get_loglevel(
+ event_rule, &loglevel);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ enum lttng_loglevel_type loglevel_type;
+ const char *loglevel_op;
+
+ event_rule_status = lttng_event_rule_tracepoint_get_loglevel_type(
+ event_rule, &loglevel_type);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+ assert(loglevel_type == LTTNG_EVENT_LOGLEVEL_RANGE ||
+ loglevel_type == LTTNG_EVENT_LOGLEVEL_SINGLE);
+
+ loglevel_op = (loglevel_type == LTTNG_EVENT_LOGLEVEL_RANGE ? "<=" : "==");
+
+ printf(", log level %s %s", loglevel_op,
+ mi_lttng_loglevel_string(loglevel, domain_type));
+ } else {
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ event_rule_status = lttng_event_rule_tracepoint_get_exclusions_count(
+ event_rule, &exclusions_count);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+ if (exclusions_count > 0) {
+ printf(", exclusions: ");
+ for (i = 0; i < exclusions_count; i++) {
+ const char *exclusion;
+
+ event_rule_status = lttng_event_rule_tracepoint_get_exclusion_at_index(
+ event_rule, i, &exclusion);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ printf("%s%s", i > 0 ? "," : "", exclusion);
+ }
+ }
+
+
+ printf(")\n");
+}
+
+static
+void print_event_rule_kprobe(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *name, *symbol_name;
+ uint64_t offset;
+
+ event_rule_status = lttng_event_rule_kprobe_get_name(event_rule, &name);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ fprintf(stderr, "Failed to get kprobe event rule's name.\n");
+ goto end;
+ }
+
+ assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KPROBE);
+
+ printf(" rule: %s (type: probe, location: ", name);
+
+ // FIXME: When the location has been specified by address, this field
+ // contains the address as a string. The only downside is that we are
+ // missing a `0x` prefix.
+ symbol_name = lttng_event_rule_kprobe_get_symbol_name(event_rule);
+ printf("%s", symbol_name);
+
+ offset = lttng_event_rule_kprobe_get_offset(event_rule);
+ if (offset > 0) {
+ printf("+0x%" PRIx64, offset);
+ }
+
+ printf(")\n");
+
+end:
+ return;
+}
+
+static
+void print_event_rule_uprobe(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_status event_rule_status;
+ const char *name;
+ const struct lttng_userspace_probe_location *location;
+ enum lttng_userspace_probe_location_type userspace_probe_location_type;
+
+ assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_UPROBE);
+
+ event_rule_status = lttng_event_rule_uprobe_get_name(event_rule, &name);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ fprintf(stderr, "Failed to get uprobe event rule's name.\n");
+ goto end;
+ }
+
+ event_rule_status = lttng_event_rule_uprobe_get_location(event_rule, &location);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ fprintf(stderr, "Failed to get uprobe event rule's location.\n");
+ goto end;
+ }
+
+ printf(" rule: %s (type: userspace probe, location: ", name);
+
+ userspace_probe_location_type =
+ lttng_userspace_probe_location_get_type(location);
+
+ switch (userspace_probe_location_type) {
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+ {
+ const char *binary_path, *function_name;
+
+ binary_path = lttng_userspace_probe_location_function_get_binary_path(location);
+ function_name = lttng_userspace_probe_location_function_get_function_name(location);
+
+ printf("%s:%s", binary_path, function_name);
+ break;
+ }
+
+ case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+ printf("SDT not implemented yet");
+ break;
+
+ default:
+ abort();
+ }
+
+ printf(")\n");
+
+end:
+ return;
+}
+
+static
+void print_event_rule_syscall(const struct lttng_event_rule *event_rule)
+{
+ const char *pattern, *filter;
+ enum lttng_event_rule_status event_rule_status;
+
+ assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_SYSCALL);
+
+ event_rule_status = lttng_event_rule_syscall_get_pattern(event_rule, &pattern);
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK);
+
+ printf(" - rule: %s (type: syscall", pattern);
+
+ event_rule_status = lttng_event_rule_syscall_get_filter(
+ event_rule, &filter);
+ if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) {
+ printf(", filter: %s", filter);
+ } else {
+ assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET);
+ }
+
+ printf(")\n");
+}
+
+static
+void print_event_rule(const struct lttng_event_rule *event_rule)
+{
+ enum lttng_event_rule_type event_rule_type =
+ lttng_event_rule_get_type(event_rule);
+
+ switch (event_rule_type) {
+ case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
+ print_event_rule_tracepoint(event_rule);
+ break;
+
+ case LTTNG_EVENT_RULE_TYPE_KPROBE:
+ print_event_rule_kprobe(event_rule);
+ break;
+
+ case LTTNG_EVENT_RULE_TYPE_UPROBE:
+ print_event_rule_uprobe(event_rule);
+ break;
+
+ case LTTNG_EVENT_RULE_TYPE_SYSCALL:
+ print_event_rule_syscall(event_rule);
+ break;
+
+ default:
+ abort();
+ }
+}
+
+static
+void print_condition_event_rule_hit(const struct lttng_condition *condition)
+{
+ const struct lttng_event_rule *event_rule;
+ enum lttng_condition_status condition_status;
+
+ condition_status =
+ lttng_condition_event_rule_get_rule(condition, &event_rule);
+ assert(condition_status == LTTNG_CONDITION_STATUS_OK);
+
+ print_event_rule(event_rule);
+}
+
+static
+void print_one_action(const struct lttng_action *action)
+{
+ enum lttng_action_type action_type;
+ enum lttng_action_status action_status;
+ const char *value;
+
+ action_type = lttng_action_get_type(action);
+ assert(action_type != LTTNG_ACTION_TYPE_GROUP);
+
+ switch (action_type) {
+ case LTTNG_ACTION_TYPE_NOTIFY:
+ printf("notify\n");
+ break;
+
+ case LTTNG_ACTION_TYPE_START_SESSION:
+ action_status = lttng_action_start_session_get_session_name(
+ action, &value);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+ printf("start session `%s`\n", value);
+ break;
+
+ case LTTNG_ACTION_TYPE_STOP_SESSION:
+ action_status = lttng_action_stop_session_get_session_name(
+ action, &value);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+ printf("stop session `%s`\n", value);
+ break;
+
+ case LTTNG_ACTION_TYPE_ROTATE_SESSION:
+ action_status = lttng_action_rotate_session_get_session_name(
+ action, &value);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+ printf("rotate session `%s`\n", value);
+ break;
+
+ case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION:
+ {
+ const struct lttng_snapshot_output *output;
+
+ action_status = lttng_action_snapshot_session_get_session_name(
+ action, &value);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+ printf("snapshot session `%s`", value);
+
+ action_status = lttng_action_snapshot_session_get_output_const(
+ action, &output);
+ if (action_status == LTTNG_ACTION_STATUS_OK) {
+ const char *name;
+ uint64_t max_size;
+ const char *ctrl_url, *data_url;
+ bool starts_with_file, starts_with_net, starts_with_net6;
+
+ ctrl_url = lttng_snapshot_output_get_ctrl_url(output);
+ assert(ctrl_url && strlen(ctrl_url) > 0);
+
+ data_url = lttng_snapshot_output_get_data_url(output);
+ assert(data_url);
+
+ starts_with_file = strncmp(ctrl_url, "file://", strlen("file://")) == 0;
+ starts_with_net = strncmp(ctrl_url, "net://", strlen("net://")) == 0;
+ starts_with_net6 = strncmp(ctrl_url, "net6://", strlen("net6://")) == 0;
+
+ if (ctrl_url[0] == '/' || starts_with_file) {
+ if (starts_with_file) {
+ ctrl_url += strlen("file://");
+ }
+
+ printf(", path: %s", ctrl_url);
+ } else if (starts_with_net || starts_with_net6) {
+ printf(", url: %s", ctrl_url);
+ } else {
+ assert(strlen(data_url) > 0);
+
+ printf(", control url: %s, data url: %s", ctrl_url, data_url);
+ }
+
+ name = lttng_snapshot_output_get_name(output);
+ assert(name);
+ if (strlen(name) > 0) {
+ printf(", name: %s", name);
+ }
+
+ max_size = lttng_snapshot_output_get_maxsize(output);
+ if (max_size != -1ULL) {
+ printf(", max size: %" PRIu64, max_size);
+ }
+ }
+
+ printf("\n");
+ break;
+ }
+
+ default:
+ abort();
+ }
+}
+
+static
+void print_one_trigger(const struct lttng_trigger *trigger)
+{
+ const struct lttng_condition *condition;
+ enum lttng_condition_type condition_type;
+ const struct lttng_action *action;
+ enum lttng_action_type action_type;
+ enum lttng_trigger_status trigger_status;
+ const char *name;
+ enum lttng_trigger_firing_policy_type policy_type;
+ unsigned long long threshold;
+
+ trigger_status = lttng_trigger_get_name(trigger, &name);
+ assert(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+ printf("- id: %s\n", name);
+
+ trigger_status = lttng_trigger_get_firing_policy(trigger,
+ &policy_type, &threshold);
+ if (trigger_status != LTTNG_TRIGGER_STATUS_OK) {
+ fprintf(stderr, "Failed to get trigger's firing policy.\n");
+ goto end;
+ }
+
+ switch (policy_type) {
+ case LTTNG_TRIGGER_FIRE_EVERY_N:
+ if (threshold > 1) {
+ printf(" firing policy: after every %llu occurences\n", threshold);
+ }
+ break;
+
+ case LTTNG_TRIGGER_FIRE_ONCE_AFTER_N:
+ printf(" firing policy: once after %llu occurences\n", threshold);
+ break;
+
+ default:
+ abort();
+ }
+
+ condition = lttng_trigger_get_const_condition(trigger);
+ condition_type = lttng_condition_get_type(condition);
+ printf(" condition: %s\n",
+ lttng_condition_type_str(condition_type));
+
+ switch (condition_type) {
+ case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+ print_condition_event_rule_hit(condition);
+ break;
+
+ default:
+ printf(" (condition type not handled in %s)\n", __func__);
+ break;
+ }
+
+ action = lttng_trigger_get_const_action(trigger);
+ action_type = lttng_action_get_type(action);
+ if (action_type == LTTNG_ACTION_TYPE_GROUP) {
+ enum lttng_action_status action_status;
+ unsigned int count, i;
+
+ printf(" actions:\n");
+
+ action_status = lttng_action_group_get_count(action, &count);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+
+ for (i = 0; i < count; i++) {
+ const struct lttng_action *subaction =
+ lttng_action_group_get_at_index_const(action, i);
+
+ printf(" ");
+ print_one_action(subaction);
+ }
+ } else {
+ printf(" action:");
+ print_one_action(action);
+ }
+
+end:
+ return;
+}
+
+static
+int compare_triggers_by_name(const void *a, const void *b)
+{
+ const struct lttng_trigger *trigger_a = *((const struct lttng_trigger **) a);
+ const struct lttng_trigger *trigger_b = *((const struct lttng_trigger **) b);
+ const char *name_a, *name_b;
+ enum lttng_trigger_status trigger_status;
+
+ trigger_status = lttng_trigger_get_name(trigger_a, &name_a);
+ assert(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ trigger_status = lttng_trigger_get_name(trigger_b, &name_b);
+ assert(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ return strcmp(name_a, name_b);
+}
+
+int cmd_list_triggers(int argc, const char **argv)
+{
+ int ret;
+ struct argpar_parse_ret argpar_parse_ret = { 0 };
+ struct lttng_triggers *triggers = NULL;
+ int i;
+ const struct lttng_trigger **sorted_triggers = NULL;
+ enum lttng_trigger_status trigger_status;
+ unsigned int num_triggers;
+
+ argpar_parse_ret = argpar_parse(argc - 1, argv + 1,
+ list_trigger_options, true);
+ if (!argpar_parse_ret.items) {
+ fprintf(stderr, "Error: %s\n", argpar_parse_ret.error);
+ goto error;
+ }
+
+ for (i = 0; i < argpar_parse_ret.items->n_items; i++) {
+ struct argpar_item *item = argpar_parse_ret.items->items[i];
+
+ if (item->type == ARGPAR_ITEM_TYPE_OPT) {
+ struct argpar_item_opt *item_opt =
+ (struct argpar_item_opt *) item;
+
+ switch (item_opt->descr->id) {
+ case OPT_HELP:
+ SHOW_HELP();
+ ret = 0;
+ goto end;
+
+ case OPT_LIST_OPTIONS:
+ list_cmd_options_argpar(stdout,
+ list_trigger_options);
+ ret = 0;
+ goto end;
+
+ default:
+ abort();
+ }
+
+ } else {
+ struct argpar_item_non_opt *item_non_opt =
+ (struct argpar_item_non_opt *) item;
+
+ fprintf(stderr, "Unexpected argument: %s\n", item_non_opt->arg);
+ }
+ }
+
+ ret = lttng_list_triggers(&triggers);
+ if (ret != 0) {
+ fprintf(stderr, "Error listing triggers: %s.\n",
+ lttng_strerror(ret));
+ goto error;
+ }
+
+ trigger_status = lttng_triggers_get_count(triggers, &num_triggers);
+ if (trigger_status != LTTNG_TRIGGER_STATUS_OK) {
+ fprintf(stderr, "Failed to get trigger count.\n");
+ goto error;
+ }
+
+ sorted_triggers = calloc(num_triggers, sizeof(struct lttng_trigger *));
+ if (!sorted_triggers) {
+ fprintf(stderr, "Failed to allocate array of struct lttng_trigger *.\n");
+ goto error;
+ }
+
+ for (i = 0; i < num_triggers; i++) {
+ sorted_triggers[i] = lttng_triggers_get_at_index(triggers, i);
+ }
+
+ qsort(sorted_triggers, num_triggers, sizeof(struct lttng_trigger *),
+ compare_triggers_by_name);
+
+ for (i = 0; i < num_triggers; i++) {
+ print_one_trigger(sorted_triggers[i]);
+ }
+
+ goto end;
+
+error:
+ ret = 1;
+
+end:
+ argpar_parse_ret_fini(&argpar_parse_ret);
+ lttng_triggers_destroy(triggers);
+
+ return ret;
+}
projects / lttng-tools.git / blobdiff