+ if (exclusions) {
+ int i;
+ bool success = true;
+
+ assert(domain_type == LTTNG_DOMAIN_UST);
+ assert(exclusion_count > 0);
+
+ for (i = 0; i < exclusion_count; i++) {
+ event_rule_status =
+ lttng_event_rule_tracepoint_add_exclusion(
+ event_rule,
+ exclusions[i]);
+ if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) {
+ fail("Setting tracepoint event rule exclusion '%s'.",
+ exclusions[i]);
+ success = false;
+ }
+ }
+
+ ok(success, "Setting tracepoint event rule exclusions");
+ }
+
+ tmp_condition = lttng_condition_event_rule_create(event_rule);
+ ok(tmp_condition, "Condition event rule object creation");
+
+ tmp_action = lttng_action_notify_create();
+ ok(tmp_action, "Action event rule object creation");
+
+ tmp_trigger = lttng_trigger_create(tmp_condition, tmp_action);
+ ok(tmp_trigger, "Trigger object creation %s", trigger_name);
+
+ trigger_status = lttng_trigger_set_name(tmp_trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger %s", trigger_name);
+
+ ret = lttng_register_trigger(tmp_trigger);
+ ok(ret == 0, "Trigger registration %s", trigger_name);
+
+ lttng_event_rule_destroy(event_rule);
+
+ *condition = tmp_condition;
+ *trigger = tmp_trigger;
+
+ return;
+}
+
+static struct lttng_notification *get_next_notification(
+ struct lttng_notification_channel *notification_channel)
+{
+ struct lttng_notification *local_notification = NULL;
+ enum lttng_notification_channel_status status;
+
+ /* Receive the next notification. */
+ status = lttng_notification_channel_get_next_notification(
+ notification_channel, &local_notification);
+
+ switch (status) {
+ case LTTNG_NOTIFICATION_CHANNEL_STATUS_OK:
+ break;
+ case LTTNG_NOTIFICATION_CHANNEL_STATUS_NOTIFICATIONS_DROPPED:
+ fail("Notifications have been dropped");
+ local_notification = NULL;
+ break;
+ default:
+ /* Unhandled conditions / errors. */
+ fail("Failed to get next notification (unknown notification channel status): status = %d",
+ (int) status);
+ local_notification = NULL;
+ break;
+ }
+
+ return local_notification;
+}
+
+static void test_tracepoint_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i;
+ int ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_action *action = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "my_precious";
+ const char *pattern;
+
+ if (domain_type == LTTNG_DOMAIN_UST) {
+ pattern = "tp:tptest";
+ } else {
+ pattern = "lttng_test_filter_event";
+ }
+
+ create_tracepoint_event_rule_trigger(pattern, trigger_name, NULL, 0,
+ NULL, domain_type, &condition, &trigger);
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ /* Get notifications. */
+ for (i = 0; i < notification_count; i++) {
+ struct lttng_notification *notification = get_next_notification(
+ notification_channel);
+
+ ok(notification, "Received notification (%d/%d)", i + 1,
+ notification_count);
+
+ /* Error. */
+ if (notification == NULL) {
+ goto end;
+ }
+
+ ret = validator_notification_trigger_name(notification, trigger_name);
+ lttng_notification_destroy(notification);
+ if (ret) {
+ goto end;
+ }
+ }
+
+end:
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+static void test_tracepoint_event_rule_notification_filter(
+ enum lttng_domain_type domain_type)
+{
+ int i;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_condition *ctrl_condition = NULL, *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *ctrl_trigger = NULL, *trigger = NULL;
+ const char * const ctrl_trigger_name = "control_trigger";
+ const char * const trigger_name = "trigger";
+ const char *pattern;
+ int ctrl_count = 0, count = 0;
+
+ if (domain_type == LTTNG_DOMAIN_UST) {
+ pattern = "tp:tptest";
+ } else {
+ pattern = "lttng_test_filter_event";
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ create_tracepoint_event_rule_trigger(pattern, ctrl_trigger_name, NULL,
+ 0, NULL, domain_type, &ctrl_condition, &ctrl_trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, ctrl_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * Attach a filter expression to get notification only if the
+ * `intfield` is even.
+ */
+ create_tracepoint_event_rule_trigger(pattern, trigger_name,
+ "(intfield & 1) == 0", 0, NULL, domain_type, &condition,
+ &trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * We registered 2 notifications triggers, one with a filter and one
+ * without (control). The one with a filter will only fired when the
+ * `intfield` is a multiple of 2. We should get two times as many
+ * control notifications as filter notifications.
+ */
+ resume_application();
+
+ /*
+ * Get 3 notifications. We should get 1 for the regular trigger (with
+ * the filter) and 2 from the control trigger. This works whatever
+ * the order we receive the notifications.
+ */
+ for (i = 0; i < notification_count; i++) {
+ const char *name;
+ struct lttng_notification *notification = get_next_notification(
+ notification_channel);
+
+ ok(notification, "Received notification (%d/%d)", i + 1,
+ notification_count);
+
+ /* Error. */
+ if (notification == NULL) {
+ goto end;
+ }
+
+ name = get_notification_trigger_name(notification);
+ if (name == NULL) {
+ lttng_notification_destroy(notification);
+ goto end;
+ }
+
+ if (strcmp(ctrl_trigger_name, name) == 0) {
+ ctrl_count++;
+ } else if (strcmp(trigger_name, name) == 0) {
+ count++;
+ }
+
+ lttng_notification_destroy(notification);
+ }
+
+ ok(ctrl_count / 2 == count,
+ "Get twice as many control notif as of regular notif");
+
+end:
+ suspend_application();
+
+ lttng_unregister_trigger(trigger);
+ lttng_unregister_trigger(ctrl_trigger);
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_trigger_destroy(trigger);
+ lttng_trigger_destroy(ctrl_trigger);
+ lttng_condition_destroy(condition);
+ lttng_condition_destroy(ctrl_condition);
+}
+
+static void test_tracepoint_event_rule_notification_exclusion(
+ enum lttng_domain_type domain_type)
+{
+ enum lttng_notification_channel_status nc_status;
+ struct lttng_condition *ctrl_condition = NULL, *condition = NULL;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_trigger *ctrl_trigger = NULL, *trigger = NULL;
+ int ctrl_count = 0, count = 0, i;
+ const int notification_count = 6;
+ const char * const ctrl_trigger_name = "control_exclusion_trigger";
+ const char * const trigger_name = "exclusion_trigger";
+ const char * const pattern = "tp:tptest*";
+ const char * const exclusions[] = {
+ "tp:tptest2",
+ "tp:tptest3",
+ "tp:tptest4",
+ "tp:tptest5"
+ };
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ create_tracepoint_event_rule_trigger(pattern, ctrl_trigger_name, NULL,
+ 0, NULL, domain_type, &ctrl_condition, &ctrl_trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, ctrl_condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ create_tracepoint_event_rule_trigger(pattern, trigger_name, NULL, 4,
+ exclusions, domain_type, &condition, &trigger);
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ /*
+ * We registered 2 notifications triggers, one with an exclusion and
+ * one without (control).
+ * - The trigger with an exclusion will fire once every iteration.
+ * - The trigger without an exclusion will fire 5 times every
+ * iteration.
+ *
+ * We should get 5 times as many notifications from the control
+ * trigger.
+ */
+ resume_application();
+
+ /*
+ * Get 6 notifications. We should get 1 for the regular trigger (with
+ * the exclusion) and 5 from the control trigger. This works whatever
+ * the order we receive the notifications.
+ */
+ for (i = 0; i < notification_count; i++) {
+ const char *name;
+ struct lttng_notification *notification = get_next_notification(
+ notification_channel);
+
+ ok(notification, "Received notification (%d/%d)", i + 1,
+ notification_count);
+
+ /* Error. */
+ if (notification == NULL) {
+ goto end;
+ }
+
+ name = get_notification_trigger_name(notification);
+ if (name == NULL) {
+ lttng_notification_destroy(notification);
+ goto end;
+ }
+
+ if (strcmp(ctrl_trigger_name, name) == 0) {
+ ctrl_count++;
+ } else if (strcmp(trigger_name, name) == 0) {
+ count++;
+ }
+
+ lttng_notification_destroy(notification);
+ }
+
+ ok(ctrl_count / 5 == count,
+ "Got 5 times as many control notif as of regular notif");
+
+end:
+ suspend_application();
+
+ lttng_unregister_trigger(trigger);
+ lttng_unregister_trigger(ctrl_trigger);
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_trigger_destroy(trigger);
+ lttng_trigger_destroy(ctrl_trigger);
+ lttng_condition_destroy(condition);
+ lttng_condition_destroy(ctrl_condition);
+ return;
+}
+
+static void test_kprobe_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_kernel_probe_location *location = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "kprobe_trigger";
+ const char * const symbol_name = "lttng_test_filter_event_write";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ location = lttng_kernel_probe_location_symbol_create(symbol_name, 0);
+ if (!location) {
+ fail("Failed to create kernel probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_kprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_kprobe_set_location(
+ event_rule, location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule location: '%s'", symbol_name);
+
+ event_rule_status = lttng_event_rule_kprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting trigger name to '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ struct lttng_notification *notification = get_next_notification(
+ notification_channel);
+
+ ok(notification, "Received notification (%d/%d)", i + 1,
+ notification_count);
+
+ /* Error. */
+ if (notification == NULL) {
+ goto end;
+ }
+
+ ret = validator_notification_trigger_name(notification, trigger_name);
+ lttng_notification_destroy(notification);
+ if (ret) {
+ goto end;
+ }
+ }
+
+end:
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ lttng_kernel_probe_location_destroy(location);
+ return;
+}
+
+static void test_uprobe_event_rule_notification(
+ enum lttng_domain_type domain_type,
+ const char *testapp_path,
+ const char *test_symbol_name)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_userspace_probe_location *probe_location = NULL;
+ struct lttng_userspace_probe_location_lookup_method *lookup_method =
+ NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "uprobe_trigger";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ lookup_method = lttng_userspace_probe_location_lookup_method_function_elf_create();
+ if (!lookup_method) {
+ fail("Setup error on userspace probe lookup method creation");
+ goto end;
+ }
+
+ probe_location = lttng_userspace_probe_location_function_create(
+ testapp_path, test_symbol_name, lookup_method);
+ if (!probe_location) {
+ fail("Failed to create userspace probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_uprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_uprobe_set_location(
+ event_rule, probe_location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule location");
+
+ event_rule_status = lttng_event_rule_uprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with userspace probe event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with userspace probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < 3; i++) {
+ struct lttng_notification *notification = get_next_notification(
+ notification_channel);
+
+ ok(notification, "Received notification (%d/%d)", i + 1,
+ notification_count);
+
+ /* Error. */
+ if (notification == NULL) {
+ goto end;
+ }
+
+ ret = validator_notification_trigger_name(notification, trigger_name);
+ lttng_notification_destroy(notification);
+ if (ret) {
+ goto end;
+ }
+ }
+end:
+ suspend_application();
+
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ return;
+}
+
+static void test_syscall_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "syscall_trigger";
+ const char * const syscall_name = "openat";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_syscall_create();
+ ok(event_rule, "syscall event rule object creation");
+
+ event_rule_status = lttng_event_rule_syscall_set_pattern(
+ event_rule, syscall_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting syscall event rule pattern: '%s'", syscall_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition syscall event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with syscall event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with syscall event rule condition and notify action");
+ goto end;