+++ /dev/null
-/*
- * Copyright (C) 2019 Jonathan Rajotte
- * <jonathan.rajotte-julien@efficios.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- */
-
-#include <common/error.h>
-#include <common/hashtable/hashtable.h>
-#include <common/hashtable/utils.h>
-#include <common/macros.h>
-#include <common/mi-lttng.h>
-#include <common/payload-view.h>
-#include <common/payload.h>
-#include <lttng/event-rule/event-rule-internal.h>
-#include <lttng/event-rule/jul-logging-internal.h>
-#include <lttng/event-rule/kernel-kprobe-internal.h>
-#include <lttng/event-rule/kernel-syscall-internal.h>
-#include <lttng/event-rule/kernel-tracepoint-internal.h>
-#include <lttng/event-rule/kernel-uprobe-internal.h>
-#include <lttng/event-rule/log4j-logging-internal.h>
-#include <lttng/event-rule/python-logging-internal.h>
-#include <lttng/event-rule/user-tracepoint-internal.h>
-#include <stdbool.h>
-
-enum lttng_event_rule_type lttng_event_rule_get_type(
- const struct lttng_event_rule *event_rule)
-{
- return event_rule ? event_rule->type : LTTNG_EVENT_RULE_TYPE_UNKNOWN;
-}
-
-enum lttng_domain_type lttng_event_rule_get_domain_type(
- const struct lttng_event_rule *event_rule)
-{
- enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
-
- switch (lttng_event_rule_get_type(event_rule)) {
- case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
- domain_type = LTTNG_DOMAIN_UST;
- break;
- case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
- domain_type = LTTNG_DOMAIN_JUL;
- break;
- case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
- domain_type = LTTNG_DOMAIN_LOG4J;
- break;
- case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
- domain_type = LTTNG_DOMAIN_PYTHON;
- break;
- case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
- case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
- case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
- case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
- domain_type = LTTNG_DOMAIN_KERNEL;
- break;
- case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
- domain_type = LTTNG_DOMAIN_NONE;
- break;
- }
-
- return domain_type;
-}
-
-static void lttng_event_rule_release(struct urcu_ref *ref)
-{
- struct lttng_event_rule *event_rule =
- container_of(ref, typeof(*event_rule), ref);
-
- LTTNG_ASSERT(event_rule->destroy);
- event_rule->destroy(event_rule);
-}
-
-void lttng_event_rule_destroy(struct lttng_event_rule *event_rule)
-{
- lttng_event_rule_put(event_rule);
-}
-
-bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule)
-{
- bool valid;
-
- if (!event_rule) {
- valid = false;
- goto end;
- }
-
- if (!event_rule->validate) {
- /* Sub-class guarantees that it can never be invalid. */
- valid = true;
- goto end;
- }
-
- valid = event_rule->validate(event_rule);
-end:
- return valid;
-}
-
-int lttng_event_rule_serialize(const struct lttng_event_rule *event_rule,
- struct lttng_payload *payload)
-{
- int ret;
- struct lttng_event_rule_comm event_rule_comm = {};
-
- if (!event_rule) {
- ret = -1;
- goto end;
- }
-
- event_rule_comm.event_rule_type = (int8_t) event_rule->type;
-
- ret = lttng_dynamic_buffer_append(
- &payload->buffer, &event_rule_comm, sizeof(event_rule_comm));
- if (ret) {
- goto end;
- }
-
- ret = event_rule->serialize(event_rule, payload);
- if (ret) {
- goto end;
- }
-end:
- return ret;
-}
-
-bool lttng_event_rule_is_equal(const struct lttng_event_rule *a,
- const struct lttng_event_rule *b)
-{
- bool is_equal = false;
-
- if (!a || !b) {
- goto end;
- }
-
- if (a->type != b->type) {
- goto end;
- }
-
- if (a == b) {
- is_equal = true;
- goto end;
- }
-
- is_equal = a->equal ? a->equal(a, b) : true;
-end:
- return is_equal;
-}
-
-ssize_t lttng_event_rule_create_from_payload(
- struct lttng_payload_view *view,
- struct lttng_event_rule **event_rule)
-{
- ssize_t ret, consumed = 0;
- event_rule_create_from_payload_cb create_from_payload = NULL;
- const struct lttng_event_rule_comm *event_rule_comm;
- const struct lttng_payload_view event_rule_comm_view =
- lttng_payload_view_from_view(
- view, 0, sizeof(*event_rule_comm));
-
- if (!view || !event_rule) {
- ret = -1;
- goto end;
- }
-
- if (!lttng_payload_view_is_valid(&event_rule_comm_view)) {
- ret = -1;
- goto end;
- }
-
- DBG("Deserializing event_rule from payload");
- event_rule_comm = (const struct lttng_event_rule_comm *) event_rule_comm_view.buffer.data;
- consumed += sizeof(*event_rule_comm);
-
- switch ((enum lttng_event_rule_type) event_rule_comm->event_rule_type) {
- case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
- create_from_payload = lttng_event_rule_kernel_kprobe_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
- create_from_payload = lttng_event_rule_kernel_uprobe_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
- create_from_payload =
- lttng_event_rule_kernel_syscall_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
- create_from_payload =
- lttng_event_rule_kernel_tracepoint_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
- create_from_payload =
- lttng_event_rule_user_tracepoint_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
- create_from_payload =
- lttng_event_rule_jul_logging_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
- create_from_payload =
- lttng_event_rule_log4j_logging_create_from_payload;
- break;
- case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
- create_from_payload =
- lttng_event_rule_python_logging_create_from_payload;
- break;
- default:
- ERR("Attempted to create event rule of unknown type (%i)",
- (int) event_rule_comm->event_rule_type);
- ret = -1;
- goto end;
- }
-
- LTTNG_ASSERT(create_from_payload);
-
- {
- struct lttng_payload_view child_view =
- lttng_payload_view_from_view(
- view, consumed, -1);
-
- ret = create_from_payload(&child_view, event_rule);
- if (ret < 0) {
- goto end;
- }
-
- consumed += ret;
- }
-
- if (!lttng_event_rule_validate(*event_rule)) {
- ret = -1;
- goto end;
- }
-
- ret = consumed;
-end:
- return ret;
-}
-
-void lttng_event_rule_init(struct lttng_event_rule *event_rule,
- enum lttng_event_rule_type type)
-{
- urcu_ref_init(&event_rule->ref);
- event_rule->type = type;
-}
-
-bool lttng_event_rule_get(struct lttng_event_rule *event_rule)
-{
- return urcu_ref_get_unless_zero(&event_rule->ref);
-}
-
-void lttng_event_rule_put(struct lttng_event_rule *event_rule)
-{
- if (!event_rule) {
- return;
- }
-
- LTTNG_ASSERT(event_rule->ref.refcount);
- urcu_ref_put(&event_rule->ref, lttng_event_rule_release);
-}
-
-enum lttng_error_code lttng_event_rule_generate_filter_bytecode(
- struct lttng_event_rule *rule,
- const struct lttng_credentials *creds)
-{
- LTTNG_ASSERT(rule->generate_filter_bytecode);
- return rule->generate_filter_bytecode(rule, creds);
-}
-
-const char *lttng_event_rule_get_filter(const struct lttng_event_rule *rule)
-{
- LTTNG_ASSERT(rule->get_filter);
- return rule->get_filter(rule);
-}
-
-const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode(
- const struct lttng_event_rule *rule)
-{
- LTTNG_ASSERT(rule->get_filter_bytecode);
- return rule->get_filter_bytecode(rule);
-}
-
-enum lttng_event_rule_generate_exclusions_status
-lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule,
- struct lttng_event_exclusion **exclusions)
-{
- LTTNG_ASSERT(rule->generate_exclusions);
- return rule->generate_exclusions(rule, exclusions);
-}
-
-struct lttng_event *lttng_event_rule_generate_lttng_event(
- const struct lttng_event_rule *rule)
-{
- LTTNG_ASSERT(rule->generate_lttng_event);
- return rule->generate_lttng_event(rule);
-}
-
-bool lttng_event_rule_targets_agent_domain(const struct lttng_event_rule *rule)
-{
- bool targets_agent_domain = false;
- enum lttng_domain_type type = lttng_event_rule_get_domain_type(rule);
-
- switch (type) {
- case LTTNG_DOMAIN_JUL:
- case LTTNG_DOMAIN_LOG4J:
- case LTTNG_DOMAIN_PYTHON:
- targets_agent_domain = true;
- break;
- case LTTNG_DOMAIN_UST:
- case LTTNG_DOMAIN_KERNEL:
- targets_agent_domain = false;
- break;
- default:
- abort();
- };
-
- return targets_agent_domain;
-}
-
-const char *lttng_event_rule_type_str(enum lttng_event_rule_type type)
-{
- switch (type) {
- case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
- return "unknown";
- case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
- return "kernel syscall";
- case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
- return "kernel kprobe";
- case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
- return "kernel uprobe";
- case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
- return "kernel tracepoint";
- case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
- return "user tracepoint";
- case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
- return "jul logging";
- case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
- return "log4j logging";
- case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
- return "python logging";
-
- default:
- abort();
- }
-}
-
-unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule)
-{
- LTTNG_ASSERT(rule->hash);
- return rule->hash(rule);
-}
-
-enum lttng_error_code lttng_event_rule_mi_serialize(
- const struct lttng_event_rule *rule, struct mi_writer *writer)
-{
- int ret;
- enum lttng_error_code ret_code;
-
- LTTNG_ASSERT(rule);
- LTTNG_ASSERT(writer);
- LTTNG_ASSERT(rule->mi_serialize);
-
- /* Open event rule element. */
- ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_rule);
- if (ret) {
- goto mi_error;
- }
-
- /* Serialize underlying event rule. */
- ret_code = rule->mi_serialize(rule, writer);
- if (ret_code != LTTNG_OK) {
- goto end;
- }
-
- /* Close event rule element. */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- goto mi_error;
- }
-
- ret_code = LTTNG_OK;
- goto end;
-
-mi_error:
- ret_code = LTTNG_ERR_MI_IO_FAIL;
-end:
- return ret_code;
-}
projects / lttng-tools.git / blobdiff