/*
- * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
*
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LTTNG_TRIGGER_H
#define LTTNG_TRIGGER_H
+#include <sys/types.h>
+
struct lttng_action;
struct lttng_condition;
struct lttng_trigger;
LTTNG_REGISTER_TRIGGER_STATUS_INVALID = -1,
};
+enum lttng_trigger_status {
+ LTTNG_TRIGGER_STATUS_OK = 0,
+ LTTNG_TRIGGER_STATUS_ERROR = -1,
+ LTTNG_TRIGGER_STATUS_UNKNOWN = -2,
+ LTTNG_TRIGGER_STATUS_INVALID = -3,
+ LTTNG_TRIGGER_STATUS_UNSET = -4,
+ LTTNG_TRIGGER_STATUS_UNSUPPORTED = -5,
+ LTTNG_TRIGGER_STATUS_PERMISSION_DENIED = -6,
+};
+
/*
* Create a trigger object associating a condition and an action.
*
extern struct lttng_trigger *lttng_trigger_create(
struct lttng_condition *condition, struct lttng_action *action);
+/*
+ * Set the user identity (uid) of a trigger.
+ *
+ * Only available for the root user (uid 0).
+ *
+ * Returns LTTNG_TRIGGER_STATUS_OK on success,
+ * LTTNG_TRIGGER_STATUS_EPERM if not authorized,
+ * LTTNG_TRIGGER_STATUS_INVALID if invalid parameters are passed.
+ */
+extern enum lttng_trigger_status lttng_trigger_set_owner_uid(
+ struct lttng_trigger *trigger, uid_t uid);
+
+/*
+ * Get the user identity (uid) of a trigger.
+ *
+ * Returns LTTNG_TRIGGER_STATUS_OK on success,
+ * LTTNG_TRIGGER_STATUS_UNSET if unset,
+ * LTTNG_TRIGGER_STATUS_INVALID if invalid parameters are passed.
+ */
+extern enum lttng_trigger_status lttng_trigger_get_owner_uid(
+ const struct lttng_trigger *trigger, uid_t *uid);
+
/*
* Get the condition of a trigger.
*
extern struct lttng_action *lttng_trigger_get_action(
struct lttng_trigger *trigger);
+
+/*
+ * Get the name of a trigger.
+ *
+ * The caller does not assume the ownership of the returned name.
+ * The name shall only only be used for the duration of the trigger's
+ * lifetime, or until a different name is set.
+ *
+ * Returns LTTNG_TRIGGER_STATUS_OK and a pointer to the trigger's name on
+ * success, LTTNG_TRIGGER_STATUS_INVALID if an invalid parameter is passed,
+ * or LTTNG_TRIGGER_STATUS_UNSET if a name was not set prior to this call.
+ */
+extern enum lttng_trigger_status lttng_trigger_get_name(
+ const struct lttng_trigger *trigger, const char **name);
+
+/*
+ * Set the trigger name.
+ *
+ * A name is optional.
+ * A name will be assigned on trigger registration if no name is set.
+ *
+ * The name is copied.
+ *
+ * Return LTTNG_TRIGGER_STATUS_OK on success, LTTNG_TRIGGER_STATUS_INVALID
+ * if invalid parameters are passed.
+ */
+extern enum lttng_trigger_status lttng_trigger_set_name(
+ struct lttng_trigger *trigger, const char *name);
+
/*
* Destroy (frees) a trigger object.
*/