[lttng-tools.git] / src / common / event-rule / event-rule.c

/*
 * 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;
}
Commit	Line	Data
7a3dcaf6 JR	1	/*
	2	* Copyright (C) 2019 Jonathan Rajotte
	3	* <jonathan.rajotte-julien@efficios.com>
	4	*
	5	* SPDX-License-Identifier: LGPL-2.1-only
	6	*
	7	*/
	8
7a3dcaf6	9	#include <common/error.h>
959e3c66 JR	10	#include <common/hashtable/hashtable.h>
959e3c66 JR	11	#include <common/hashtable/utils.h>
6a751b95 JR	12	#include <common/macros.h>
	13	#include <common/mi-lttng.h>
	14	#include <common/payload-view.h>
	15	#include <common/payload.h>
7a3dcaf6	16	#include <lttng/event-rule/event-rule-internal.h>
6a751b95	17	#include <lttng/event-rule/jul-logging-internal.h>
85522de5	18	#include <lttng/event-rule/kernel-kprobe-internal.h>
4f7da553	19	#include <lttng/event-rule/kernel-syscall-internal.h>
af0818ef	20	#include <lttng/event-rule/kernel-tracepoint-internal.h>
46fd07ac	21	#include <lttng/event-rule/kernel-uprobe-internal.h>
6a751b95 JR	22	#include <lttng/event-rule/log4j-logging-internal.h>
6a751b95 JR	23	#include <lttng/event-rule/python-logging-internal.h>
0a23a07d	24	#include <lttng/event-rule/user-tracepoint-internal.h>
7a3dcaf6 JR	25	#include <stdbool.h>
	26
	27	enum lttng_event_rule_type lttng_event_rule_get_type(
	28	const struct lttng_event_rule *event_rule)
	29	{
	30	return event_rule ? event_rule->type : LTTNG_EVENT_RULE_TYPE_UNKNOWN;
	31	}
	32
7a3dcaf6 JR	33	enum lttng_domain_type lttng_event_rule_get_domain_type(
	34	const struct lttng_event_rule *event_rule)
	35	{
	36	enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
	37
	38	switch (lttng_event_rule_get_type(event_rule)) {
0a23a07d JR	39	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	40	domain_type = LTTNG_DOMAIN_UST;
	41	break;
b47b01d8 JR	42	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
	43	domain_type = LTTNG_DOMAIN_JUL;
	44	break;
138d6838 JR	45	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
	46	domain_type = LTTNG_DOMAIN_LOG4J;
	47	break;
6530ec7d JR	48	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	49	domain_type = LTTNG_DOMAIN_PYTHON;
	50	break;
4f7da553	51	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
85522de5	52	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
46fd07ac	53	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
af0818ef	54	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
7a3dcaf6 JR	55	domain_type = LTTNG_DOMAIN_KERNEL;
	56	break;
	57	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	58	domain_type = LTTNG_DOMAIN_NONE;
	59	break;
	60	}
	61
	62	return domain_type;
	63	}
	64
	65	static void lttng_event_rule_release(struct urcu_ref *ref)
	66	{
	67	struct lttng_event_rule *event_rule =
	68	container_of(ref, typeof(*event_rule), ref);
	69
a0377dfe	70	LTTNG_ASSERT(event_rule->destroy);
7a3dcaf6 JR	71	event_rule->destroy(event_rule);
	72	}
	73
	74	void lttng_event_rule_destroy(struct lttng_event_rule *event_rule)
	75	{
	76	lttng_event_rule_put(event_rule);
	77	}
	78
7a3dcaf6 JR	79	bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule)
	80	{
	81	bool valid;
	82
	83	if (!event_rule) {
	84	valid = false;
	85	goto end;
	86	}
	87
	88	if (!event_rule->validate) {
	89	/* Sub-class guarantees that it can never be invalid. */
	90	valid = true;
	91	goto end;
	92	}
	93
	94	valid = event_rule->validate(event_rule);
	95	end:
	96	return valid;
	97	}
	98
7a3dcaf6 JR	99	int lttng_event_rule_serialize(const struct lttng_event_rule *event_rule,
	100	struct lttng_payload *payload)
	101	{
	102	int ret;
	103	struct lttng_event_rule_comm event_rule_comm = {};
	104
	105	if (!event_rule) {
	106	ret = -1;
	107	goto end;
	108	}
	109
	110	event_rule_comm.event_rule_type = (int8_t) event_rule->type;
	111
	112	ret = lttng_dynamic_buffer_append(
	113	&payload->buffer, &event_rule_comm, sizeof(event_rule_comm));
	114	if (ret) {
	115	goto end;
	116	}
	117
	118	ret = event_rule->serialize(event_rule, payload);
	119	if (ret) {
	120	goto end;
	121	}
	122	end:
	123	return ret;
	124	}
	125
7a3dcaf6 JR	126	bool lttng_event_rule_is_equal(const struct lttng_event_rule *a,
	127	const struct lttng_event_rule *b)
	128	{
	129	bool is_equal = false;
	130
	131	if (!a \|\| !b) {
	132	goto end;
	133	}
	134
	135	if (a->type != b->type) {
	136	goto end;
	137	}
	138
	139	if (a == b) {
	140	is_equal = true;
	141	goto end;
	142	}
	143
	144	is_equal = a->equal ? a->equal(a, b) : true;
	145	end:
	146	return is_equal;
	147	}
	148
7a3dcaf6 JR	149	ssize_t lttng_event_rule_create_from_payload(
	150	struct lttng_payload_view *view,
	151	struct lttng_event_rule **event_rule)
	152	{
	153	ssize_t ret, consumed = 0;
7a3dcaf6	154	event_rule_create_from_payload_cb create_from_payload = NULL;
3e6e0df2 JG	155	const struct lttng_event_rule_comm *event_rule_comm;
	156	const struct lttng_payload_view event_rule_comm_view =
	157	lttng_payload_view_from_view(
	158	view, 0, sizeof(*event_rule_comm));
7a3dcaf6 JR	159
	160	if (!view \|\| !event_rule) {
	161	ret = -1;
	162	goto end;
	163	}
	164
3e6e0df2 JG	165	if (!lttng_payload_view_is_valid(&event_rule_comm_view)) {
	166	ret = -1;
	167	goto end;
	168	}
	169
683d081a	170	DBG("Deserializing event_rule from payload");
3e6e0df2	171	event_rule_comm = (const struct lttng_event_rule_comm *) event_rule_comm_view.buffer.data;
7a3dcaf6 JR	172	consumed += sizeof(*event_rule_comm);
	173
	174	switch ((enum lttng_event_rule_type) event_rule_comm->event_rule_type) {
85522de5 JR	175	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
85522de5 JR	176	create_from_payload = lttng_event_rule_kernel_kprobe_create_from_payload;
7a3dcaf6	177	break;
46fd07ac JR	178	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
46fd07ac JR	179	create_from_payload = lttng_event_rule_kernel_uprobe_create_from_payload;
7a3dcaf6	180	break;
4f7da553	181	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
e6a39346	182	create_from_payload =
4f7da553	183	lttng_event_rule_kernel_syscall_create_from_payload;
7a3dcaf6	184	break;
af0818ef JR	185	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
	186	create_from_payload =
	187	lttng_event_rule_kernel_tracepoint_create_from_payload;
	188	break;
0a23a07d JR	189	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	190	create_from_payload =
	191	lttng_event_rule_user_tracepoint_create_from_payload;
	192	break;
b47b01d8 JR	193	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
	194	create_from_payload =
	195	lttng_event_rule_jul_logging_create_from_payload;
	196	break;
138d6838 JR	197	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
	198	create_from_payload =
	199	lttng_event_rule_log4j_logging_create_from_payload;
	200	break;
6530ec7d JR	201	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	202	create_from_payload =
	203	lttng_event_rule_python_logging_create_from_payload;
	204	break;
7a3dcaf6 JR	205	default:
	206	ERR("Attempted to create event rule of unknown type (%i)",
	207	(int) event_rule_comm->event_rule_type);
	208	ret = -1;
	209	goto end;
	210	}
	211
a0377dfe	212	LTTNG_ASSERT(create_from_payload);
7a3dcaf6 JR	213
	214	{
	215	struct lttng_payload_view child_view =
	216	lttng_payload_view_from_view(
	217	view, consumed, -1);
	218
	219	ret = create_from_payload(&child_view, event_rule);
	220	if (ret < 0) {
	221	goto end;
	222	}
	223
	224	consumed += ret;
	225	}
	226
	227	if (!lttng_event_rule_validate(*event_rule)) {
	228	ret = -1;
	229	goto end;
	230	}
	231
	232	ret = consumed;
	233	end:
	234	return ret;
	235	}
	236
7a3dcaf6 JR	237	void lttng_event_rule_init(struct lttng_event_rule *event_rule,
	238	enum lttng_event_rule_type type)
	239	{
	240	urcu_ref_init(&event_rule->ref);
	241	event_rule->type = type;
	242	}
	243
7a3dcaf6 JR	244	bool lttng_event_rule_get(struct lttng_event_rule *event_rule)
	245	{
	246	return urcu_ref_get_unless_zero(&event_rule->ref);
	247	}
	248
7a3dcaf6 JR	249	void lttng_event_rule_put(struct lttng_event_rule *event_rule)
	250	{
	251	if (!event_rule) {
	252	return;
	253	}
	254
a0377dfe	255	LTTNG_ASSERT(event_rule->ref.refcount);
7a3dcaf6 JR	256	urcu_ref_put(&event_rule->ref, lttng_event_rule_release);
	257	}
	258
7a3dcaf6	259	enum lttng_error_code lttng_event_rule_generate_filter_bytecode(
58daac01 JR	260	struct lttng_event_rule *rule,
58daac01 JR	261	const struct lttng_credentials *creds)
7a3dcaf6	262	{
a0377dfe	263	LTTNG_ASSERT(rule->generate_filter_bytecode);
58daac01	264	return rule->generate_filter_bytecode(rule, creds);
7a3dcaf6 JR	265	}
7a3dcaf6 JR	266
7a3dcaf6 JR	267	const char lttng_event_rule_get_filter(const struct lttng_event_rule rule)
7a3dcaf6 JR	268	{
a0377dfe	269	LTTNG_ASSERT(rule->get_filter);
7a3dcaf6 JR	270	return rule->get_filter(rule);
	271	}
	272
2b00d462	273	const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode(
7a3dcaf6 JR	274	const struct lttng_event_rule *rule)
7a3dcaf6 JR	275	{
a0377dfe	276	LTTNG_ASSERT(rule->get_filter_bytecode);
7a3dcaf6 JR	277	return rule->get_filter_bytecode(rule);
	278	}
	279
993578ff JR	280	enum lttng_event_rule_generate_exclusions_status
	281	lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule,
	282	struct lttng_event_exclusion **exclusions)
7a3dcaf6	283	{
a0377dfe	284	LTTNG_ASSERT(rule->generate_exclusions);
993578ff	285	return rule->generate_exclusions(rule, exclusions);
7a3dcaf6 JR	286	}
7a3dcaf6 JR	287
44760c20 JR	288	struct lttng_event *lttng_event_rule_generate_lttng_event(
	289	const struct lttng_event_rule *rule)
	290	{
a0377dfe	291	LTTNG_ASSERT(rule->generate_lttng_event);
44760c20 JR	292	return rule->generate_lttng_event(rule);
	293	}
	294
44760c20 JR	295	bool lttng_event_rule_targets_agent_domain(const struct lttng_event_rule *rule)
	296	{
	297	bool targets_agent_domain = false;
	298	enum lttng_domain_type type = lttng_event_rule_get_domain_type(rule);
	299
	300	switch (type) {
	301	case LTTNG_DOMAIN_JUL:
	302	case LTTNG_DOMAIN_LOG4J:
	303	case LTTNG_DOMAIN_PYTHON:
	304	targets_agent_domain = true;
	305	break;
	306	case LTTNG_DOMAIN_UST:
	307	case LTTNG_DOMAIN_KERNEL:
	308	targets_agent_domain = false;
	309	break;
	310	default:
	311	abort();
	312	};
	313
	314	return targets_agent_domain;
	315	}
	316
7a3dcaf6 JR	317	const char *lttng_event_rule_type_str(enum lttng_event_rule_type type)
	318	{
	319	switch (type) {
	320	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	321	return "unknown";
4f7da553 JR	322	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
4f7da553 JR	323	return "kernel syscall";
85522de5 JR	324	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
85522de5 JR	325	return "kernel kprobe";
46fd07ac JR	326	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
46fd07ac JR	327	return "kernel uprobe";
af0818ef JR	328	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
af0818ef JR	329	return "kernel tracepoint";
0a23a07d JR	330	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
0a23a07d JR	331	return "user tracepoint";
b47b01d8 JR	332	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
b47b01d8 JR	333	return "jul logging";
138d6838 JR	334	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
138d6838 JR	335	return "log4j logging";
6530ec7d JR	336	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	337	return "python logging";
	338
7a3dcaf6 JR	339	default:
	340	abort();
	341	}
	342	}
959e3c66	343
959e3c66 JR	344	unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule)
959e3c66 JR	345	{
a0377dfe	346	LTTNG_ASSERT(rule->hash);
959e3c66 JR	347	return rule->hash(rule);
959e3c66 JR	348	}
6a751b95	349
6a751b95 JR	350	enum lttng_error_code lttng_event_rule_mi_serialize(
	351	const struct lttng_event_rule rule, struct mi_writer writer)
	352	{
	353	int ret;
	354	enum lttng_error_code ret_code;
	355
a0377dfe FD	356	LTTNG_ASSERT(rule);
	357	LTTNG_ASSERT(writer);
	358	LTTNG_ASSERT(rule->mi_serialize);
6a751b95 JR	359
	360	/* Open event rule element. */
	361	ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_rule);
	362	if (ret) {
	363	goto mi_error;
	364	}
	365
	366	/* Serialize underlying event rule. */
	367	ret_code = rule->mi_serialize(rule, writer);
	368	if (ret_code != LTTNG_OK) {
	369	goto end;
	370	}
	371
	372	/* Close event rule element. */
	373	ret = mi_lttng_writer_close_element(writer);
	374	if (ret) {
	375	goto mi_error;
	376	}
	377
	378	ret_code = LTTNG_OK;
	379	goto end;
	380
	381	mi_error:
	382	ret_code = LTTNG_ERR_MI_IO_FAIL;
	383	end:
	384	return ret_code;
	385	}