--- /dev/null
+/*
+ * Copyright (C) 2019 - Jonathan Rajotte-Julien
+ * <jonathan.rajotte-julien@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.
+ *
+ * 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_EVENT_RULE_INTERNAL_H
+#define LTTNG_EVENT_RULE_INTERNAL_H
+
+#include <common/buffer-view.h>
+#include <common/dynamic-buffer.h>
+#include <common/macros.h>
+#include <lttng/event.h>
+#include <lttng/event-rule/event-rule.h>
+#include <lttng/lttng-error.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <urcu/ref.h>
+
+typedef void (*event_rule_destroy_cb)(struct lttng_event_rule *event_rule);
+typedef bool (*event_rule_validate_cb)(
+ const struct lttng_event_rule *event_rule);
+typedef int (*event_rule_serialize_cb)(
+ const struct lttng_event_rule *event_rule,
+ struct lttng_dynamic_buffer *buf,
+ int *fd_to_send);
+typedef bool (*event_rule_equal_cb)(const struct lttng_event_rule *a,
+ const struct lttng_event_rule *b);
+typedef ssize_t (*event_rule_create_from_buffer_cb)(
+ const struct lttng_buffer_view *view,
+ struct lttng_event_rule **event_rule);
+typedef enum lttng_error_code (*event_rule_populate_cb)(
+ struct lttng_event_rule *event_rule, uid_t uid, gid_t gid);
+typedef const char *(*event_rule_get_filter_cb)(
+ const struct lttng_event_rule *event_rule);
+typedef const struct lttng_filter_bytecode *(
+ *event_rule_get_filter_bytecode_cb)(
+ const struct lttng_event_rule *event_rule);
+typedef struct lttng_event_exclusion *(*event_rule_generate_exclusions_cb)(
+ struct lttng_event_rule *event_rule);
+typedef struct lttng_event *(*event_rule_generate_lttng_event_cb)(
+ const struct lttng_event_rule *event_rule);
+
+struct lttng_event_rule {
+ struct urcu_ref ref;
+ enum lttng_event_rule_type type;
+ event_rule_validate_cb validate;
+ event_rule_serialize_cb serialize;
+ event_rule_equal_cb equal;
+ event_rule_destroy_cb destroy;
+ event_rule_populate_cb populate;
+ /* Optional */
+ event_rule_get_filter_cb get_filter;
+ event_rule_get_filter_bytecode_cb get_filter_bytecode;
+ event_rule_generate_exclusions_cb generate_exclusions;
+ event_rule_generate_lttng_event_cb generate_lttng_event;
+};
+
+struct lttng_event_rule_comm {
+ /* enum lttng_event_rule_type */
+ int8_t event_rule_type;
+ char payload[];
+};
+
+LTTNG_HIDDEN
+void lttng_event_rule_init(struct lttng_event_rule *event_rule,
+ enum lttng_event_rule_type type);
+
+LTTNG_HIDDEN
+bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule);
+
+LTTNG_HIDDEN
+ssize_t lttng_event_rule_create_from_buffer(
+ const struct lttng_buffer_view *buffer,
+ struct lttng_event_rule **event_rule);
+
+LTTNG_HIDDEN
+int lttng_event_rule_serialize(const struct lttng_event_rule *event_rule,
+ struct lttng_dynamic_buffer *buf,
+ int *fd_to_send);
+
+LTTNG_HIDDEN
+bool lttng_event_rule_is_equal(const struct lttng_event_rule *a,
+ const struct lttng_event_rule *b);
+
+LTTNG_HIDDEN
+bool lttng_event_rule_get(struct lttng_event_rule *rule);
+
+LTTNG_HIDDEN
+void lttng_event_rule_put(struct lttng_event_rule *rule);
+
+LTTNG_HIDDEN
+enum lttng_domain_type lttng_event_rule_get_domain_type(
+ const struct lttng_event_rule *rule);
+
+LTTNG_HIDDEN
+enum lttng_error_code lttng_event_rule_populate(
+ struct lttng_event_rule *rule, uid_t uid, gid_t gid);
+
+/* If not present return NULL
+ * Caller DO NOT own the returned object
+ */
+LTTNG_HIDDEN
+const char *lttng_event_rule_get_filter(const struct lttng_event_rule *rule);
+
+/* If not present return NULL
+ * Caller DO NOT own the returned object
+ */
+LTTNG_HIDDEN
+const struct lttng_filter_bytecode *lttng_event_rule_get_filter_bytecode(
+ const struct lttng_event_rule *rule);
+
+/*
+ * If not present return NULL
+ * Caller OWN the returned object
+ * TODO: should this be done another way?
+ */
+LTTNG_HIDDEN
+struct lttng_event_exclusion *lttng_event_rule_generate_exclusions(
+ struct lttng_event_rule *rule);
+
+/*
+ * This is compatibility helper, allowing us to generate a sessiond side (not
+ * communication) struct lttng_event object. This facilitate integration with
+ * current code.
+ * Caller OWN the returned object
+ */
+LTTNG_HIDDEN
+struct lttng_event *lttng_event_rule_generate_lttng_event(
+ const struct lttng_event_rule *rule);
+
+/* Quick helper to test if the event rule apply to an agent domain */
+LTTNG_HIDDEN
+bool lttng_event_rule_is_agent(const struct lttng_event_rule *rule);
+
+LTTNG_HIDDEN
+const char *lttng_event_rule_type_str(enum lttng_event_rule_type type);
+
+#endif /* LTTNG_EVENT_RULE_INTERNAL_H */
projects / lttng-tools.git / blobdiff