X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftrigger.c;h=76082a0855d05bb7571f8e017a41f244748dac6b;hp=f77a321295d4c10a9c7d67ce51071bc649854a19;hb=HEAD;hpb=e6887944f09a8985efb521ea638b4dfe557ff4ed

diff --git a/src/common/trigger.c b/src/common/trigger.c
deleted file mode 100644
index f77a32129..000000000
--- a/src/common/trigger.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- */
-
-#include <lttng/trigger/trigger-internal.h>
-#include <lttng/condition/condition-internal.h>
-#include <lttng/action/action-internal.h>
-#include <common/credentials.h>
-#include <common/payload.h>
-#include <common/payload-view.h>
-#include <common/error.h>
-#include <common/optional.h>
-#include <assert.h>
-#include <inttypes.h>
-
-LTTNG_HIDDEN
-bool lttng_trigger_validate(struct lttng_trigger *trigger)
-{
-	bool valid;
-
-	if (!trigger) {
-		valid = false;
-		goto end;
-	}
-
-	if (!trigger->creds.uid.is_set) {
-		valid = false;
-		goto end;
-	}
-
-	valid = lttng_condition_validate(trigger->condition) &&
-			lttng_action_validate(trigger->action);
-end:
-	return valid;
-}
-
-struct lttng_trigger *lttng_trigger_create(
-		struct lttng_condition *condition,
-		struct lttng_action *action)
-{
-	struct lttng_trigger *trigger = NULL;
-
-	if (!condition || !action) {
-		goto end;
-	}
-
-	trigger = zmalloc(sizeof(struct lttng_trigger));
-	if (!trigger) {
-		goto end;
-	}
-
-	urcu_ref_init(&trigger->ref);
-
-	lttng_condition_get(condition);
-	trigger->condition = condition;
-
-	lttng_action_get(action);
-	trigger->action = action;
-
-end:
-	return trigger;
-}
-
-/*
- * Note: the lack of reference counting 'get' on the condition object is normal.
- * This API was exposed as such in 2.11. The client is not expected to call
- * lttng_condition_destroy on the returned object.
- */
-struct lttng_condition *lttng_trigger_get_condition(
-		struct lttng_trigger *trigger)
-{
-	return trigger ? trigger->condition : NULL;
-}
-
-LTTNG_HIDDEN
-const struct lttng_condition *lttng_trigger_get_const_condition(
-		const struct lttng_trigger *trigger)
-{
-	return trigger->condition;
-}
-
-
-/*
- * Note: the lack of reference counting 'get' on the action object is normal.
- * This API was exposed as such in 2.11. The client is not expected to call
- * lttng_action_destroy on the returned object.
- */
-struct lttng_action *lttng_trigger_get_action(
-		struct lttng_trigger *trigger)
-{
-	return trigger ? trigger->action : NULL;
-}
-
-LTTNG_HIDDEN
-const struct lttng_action *lttng_trigger_get_const_action(
-		const struct lttng_trigger *trigger)
-{
-	return trigger->action;
-}
-
-static void trigger_destroy_ref(struct urcu_ref *ref)
-{
-	struct lttng_trigger *trigger =
-			container_of(ref, struct lttng_trigger, ref);
-	struct lttng_action *action = lttng_trigger_get_action(trigger);
-	struct lttng_condition *condition =
-			lttng_trigger_get_condition(trigger);
-
-	assert(action);
-	assert(condition);
-
-	/* Release ownership. */
-	lttng_action_put(action);
-	lttng_condition_put(condition);
-
-	free(trigger->name);
-	free(trigger);
-}
-
-void lttng_trigger_destroy(struct lttng_trigger *trigger)
-{
-	lttng_trigger_put(trigger);
-}
-
-LTTNG_HIDDEN
-ssize_t lttng_trigger_create_from_payload(
-		struct lttng_payload_view *src_view,
-		struct lttng_trigger **trigger)
-{
-	ssize_t ret, offset = 0, condition_size, action_size, name_size = 0;
-	struct lttng_condition *condition = NULL;
-	struct lttng_action *action = NULL;
-	const struct lttng_trigger_comm *trigger_comm;
-	const char *name = NULL;
-	struct lttng_credentials creds = {
-		.uid = LTTNG_OPTIONAL_INIT_UNSET,
-		.gid = LTTNG_OPTIONAL_INIT_UNSET,
-	};
-
-	if (!src_view || !trigger) {
-		ret = -1;
-		goto end;
-	}
-
-	/* lttng_trigger_comm header */
-	trigger_comm = (typeof(trigger_comm)) src_view->buffer.data;
-
-	/* Set the trigger's creds. */
-	if (trigger_comm->uid > (uint64_t) ((uid_t) -1)) {
-		/* UID out of range for this platform. */
-		ret = -1;
-		goto end;
-	}
-
-	LTTNG_OPTIONAL_SET(&creds.uid, trigger_comm->uid);
-
-	offset += sizeof(*trigger_comm);
-
-	if (trigger_comm->name_length != 0) {
-		/* Name. */
-		const struct lttng_payload_view name_view =
-				lttng_payload_view_from_view(
-						src_view, offset, trigger_comm->name_length);
-
-		name = name_view.buffer.data;
-		if (!lttng_buffer_view_contains_string(&name_view.buffer, name,
-				    trigger_comm->name_length)) {
-			ret = -1;
-			goto end;
-		}
-
-		offset += trigger_comm->name_length;
-		name_size = trigger_comm->name_length;
-	}
-
-	{
-		/* struct lttng_condition */
-		struct lttng_payload_view condition_view =
-				lttng_payload_view_from_view(
-						src_view, offset, -1);
-
-		condition_size = lttng_condition_create_from_payload(&condition_view,
-				&condition);
-	}
-
-	if (condition_size < 0) {
-		ret = condition_size;
-		goto end;
-	}
-
-	offset += condition_size;
-	{
-		/* struct lttng_action */
-		struct lttng_payload_view action_view =
-				lttng_payload_view_from_view(
-					src_view, offset, -1);
-
-		action_size = lttng_action_create_from_payload(&action_view, &action);
-	}
-
-	if (action_size < 0) {
-		ret = action_size;
-		goto end;
-	}
-	offset += action_size;
-
-	/* Unexpected size of inner-elements; the buffer is corrupted. */
-	if ((ssize_t) trigger_comm->length != condition_size + action_size + name_size) {
-		ret = -1;
-		goto error;
-	}
-
-	*trigger = lttng_trigger_create(condition, action);
-	if (!*trigger) {
-		ret = -1;
-		goto error;
-	}
-
-	lttng_trigger_set_credentials(*trigger, &creds);
-
-	/*
-	 * The trigger object owns references to the action and condition
-	 * objects.
-	 */
-	lttng_condition_put(condition);
-	condition = NULL;
-
-	lttng_action_put(action);
-	action = NULL;
-
-	if (name) {
-		const enum lttng_trigger_status status =
-				lttng_trigger_set_name(*trigger, name);
-
-		if (status != LTTNG_TRIGGER_STATUS_OK) {
-			ret = -1;
-			goto end;
-		}
-	}
-
-	ret = offset;
-
-error:
-	lttng_condition_destroy(condition);
-	lttng_action_destroy(action);
-end:
-	return ret;
-}
-
-/*
- * Both elements are stored contiguously, see their "*_comm" structure
- * for the detailed format.
- */
-LTTNG_HIDDEN
-int lttng_trigger_serialize(struct lttng_trigger *trigger,
-		struct lttng_payload *payload)
-{
-	int ret;
-	size_t header_offset, size_before_payload, size_name;
-	struct lttng_trigger_comm trigger_comm = {};
-	struct lttng_trigger_comm *header;
-	const struct lttng_credentials *creds = NULL;
-
-	creds = lttng_trigger_get_credentials(trigger);
-	assert(creds);
-
-	trigger_comm.uid = LTTNG_OPTIONAL_GET(creds->uid);
-
-	if (trigger->name != NULL) {
-		size_name = strlen(trigger->name) + 1;
-	} else {
-		size_name = 0;
-	}
-
-	trigger_comm.name_length = size_name;
-
-	header_offset = payload->buffer.size;
-	ret = lttng_dynamic_buffer_append(&payload->buffer, &trigger_comm,
-			sizeof(trigger_comm));
-	if (ret) {
-		goto end;
-	}
-
-	size_before_payload = payload->buffer.size;
-
-	/* Trigger name. */
-	ret = lttng_dynamic_buffer_append(
-			&payload->buffer, trigger->name, size_name);
-	if (ret) {
-		goto end;
-	}
-
-	ret = lttng_condition_serialize(trigger->condition, payload);
-	if (ret) {
-		goto end;
-	}
-
-	ret = lttng_action_serialize(trigger->action, payload);
-	if (ret) {
-		goto end;
-	}
-
-	/* Update payload size. */
-	header = (typeof(header)) (payload->buffer.data + header_offset);
-	header->length = payload->buffer.size - size_before_payload;
-end:
-	return ret;
-}
-
-LTTNG_HIDDEN
-bool lttng_trigger_is_equal(
-		const struct lttng_trigger *a, const struct lttng_trigger *b)
-{
-	/*
-	 * Name is not taken into account since it is cosmetic only.
-	 */
-	if (!lttng_condition_is_equal(a->condition, b->condition)) {
-		return false;
-	}
-
-	if (!lttng_action_is_equal(a->action, b->action)) {
-		return false;
-	}
-
-	if (!lttng_credentials_is_equal(lttng_trigger_get_credentials(a),
-			lttng_trigger_get_credentials(b))) {
-		return false;
-	}
-
-	return true;
-}
-
-enum lttng_trigger_status lttng_trigger_set_name(struct lttng_trigger *trigger,
-		const char* name)
-{
-	char *name_copy = NULL;
-	enum lttng_trigger_status status = LTTNG_TRIGGER_STATUS_OK;
-
-	if (!trigger || !name ||
-			strlen(name) == 0) {
-		status = LTTNG_TRIGGER_STATUS_INVALID;
-		goto end;
-	}
-
-	name_copy = strdup(name);
-	if (!name_copy) {
-		status = LTTNG_TRIGGER_STATUS_ERROR;
-		goto end;
-	}
-
-	free(trigger->name);
-
-	trigger->name = name_copy;
-	name_copy = NULL;
-end:
-	return status;
-}
-
-enum lttng_trigger_status lttng_trigger_get_name(
-		const struct lttng_trigger *trigger, const char **name)
-{
-	enum lttng_trigger_status status = LTTNG_TRIGGER_STATUS_OK;
-
-	if (!trigger || !name) {
-		status = LTTNG_TRIGGER_STATUS_INVALID;
-		goto end;
-	}
-
-	if (!trigger->name) {
-		status = LTTNG_TRIGGER_STATUS_UNSET;
-	}
-
-	*name = trigger->name;
-end:
-	return status;
-}
-
-LTTNG_HIDDEN
-int lttng_trigger_assign_name(struct lttng_trigger *dst,
-		const struct lttng_trigger *src)
-{
-	int ret = 0;
-	enum lttng_trigger_status status;
-
-	status = lttng_trigger_set_name(dst, src->name);
-	if (status != LTTNG_TRIGGER_STATUS_OK) {
-		ret = -1;
-		ERR("Failed to set name for trigger");
-		goto end;
-	}
-end:
-	return ret;
-}
-
-LTTNG_HIDDEN
-void lttng_trigger_set_tracer_token(struct lttng_trigger *trigger,
-		uint64_t token)
-{
-	assert(trigger);
-	LTTNG_OPTIONAL_SET(&trigger->tracer_token, token);
-}
-
-LTTNG_HIDDEN
-uint64_t lttng_trigger_get_tracer_token(const struct lttng_trigger *trigger)
-{
-	assert(trigger);
-
-	return LTTNG_OPTIONAL_GET(trigger->tracer_token);
-}
-
-LTTNG_HIDDEN
-int lttng_trigger_generate_name(struct lttng_trigger *trigger,
-		uint64_t unique_id)
-{
-	int ret = 0;
-	char *generated_name = NULL;
-
-	ret = asprintf(&generated_name, "T%" PRIu64 "", unique_id);
-	if (ret < 0) {
-		ERR("Failed to generate trigger name");
-		ret = -1;
-		goto end;
-	}
-
-	ret = 0;
-	free(trigger->name);
-	trigger->name = generated_name;
-end:
-	return ret;
-}
-
-LTTNG_HIDDEN
-void lttng_trigger_get(struct lttng_trigger *trigger)
-{
-	urcu_ref_get(&trigger->ref);
-}
-
-LTTNG_HIDDEN
-void lttng_trigger_put(struct lttng_trigger *trigger)
-{
-	if (!trigger) {
-		return;
-	}
-
-	urcu_ref_put(&trigger->ref , trigger_destroy_ref);
-}
-
-LTTNG_HIDDEN
-const struct lttng_credentials *lttng_trigger_get_credentials(
-		const struct lttng_trigger *trigger)
-{
-	return &trigger->creds;
-}
-
-LTTNG_HIDDEN
-void lttng_trigger_set_credentials(struct lttng_trigger *trigger,
-		const struct lttng_credentials *creds)
-{
-	assert(creds);
-	trigger->creds = *creds;
-}
-
-enum lttng_trigger_status lttng_trigger_set_owner_uid(
-		struct lttng_trigger *trigger, uid_t uid)
-{
-	enum lttng_trigger_status ret = LTTNG_TRIGGER_STATUS_OK;
-	const struct lttng_credentials creds = {
-		.uid = LTTNG_OPTIONAL_INIT_VALUE(uid),
-		.gid = LTTNG_OPTIONAL_INIT_UNSET,
-	};
-
-	if (!trigger) {
-		ret = LTTNG_TRIGGER_STATUS_INVALID;
-		goto end;
-	}
-
-	/* Client-side validation only to report a clearer error. */
-	if (geteuid() != 0) {
-		ret = LTTNG_TRIGGER_STATUS_PERMISSION_DENIED;
-		goto end;
-	}
-
-	lttng_trigger_set_credentials(trigger, &creds);
-
-end:
-	return ret;
-}
-
-enum lttng_trigger_status lttng_trigger_get_owner_uid(
-		const struct lttng_trigger *trigger, uid_t *uid)
-{
-	enum lttng_trigger_status ret = LTTNG_TRIGGER_STATUS_OK;
-	const struct lttng_credentials *creds = NULL;
-
-	if (!trigger || !uid ) {
-		ret = LTTNG_TRIGGER_STATUS_INVALID;
-		goto end;
-	}
-
-	if (!trigger->creds.uid.is_set ) {
-		ret = LTTNG_TRIGGER_STATUS_UNSET;
-		goto end;
-	}
-
-	creds = lttng_trigger_get_credentials(trigger);
-	*uid = lttng_credentials_get_uid(creds);
-
-end:
-	return ret;
-}