[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 <assert.h>
#include <common/error.h>
#include <common/macros.h>
#include <common/payload.h>
#include <common/payload-view.h>
#include <common/hashtable/hashtable.h>
#include <common/hashtable/utils.h>
#include <lttng/event-rule/event-rule-internal.h>
#include <lttng/event-rule/kernel-kprobe-internal.h>
#include <lttng/event-rule/kernel-syscall-internal.h>
#include <lttng/event-rule/log4j-logging-internal.h>
#include <lttng/event-rule/jul-logging-internal.h>
#include <lttng/event-rule/python-logging-internal.h>
#include <lttng/event-rule/tracepoint-internal.h>
#include <lttng/event-rule/kernel-tracepoint-internal.h>
#include <lttng/event-rule/kernel-uprobe-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;
}

LTTNG_HIDDEN
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_TRACEPOINT:
	{
		enum lttng_event_rule_status status;
		status = lttng_event_rule_tracepoint_get_domain_type(event_rule, &domain_type);
		assert(status == LTTNG_EVENT_RULE_STATUS_OK);
		break;
	}
	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_FUNCTION:
	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);

	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);
}

LTTNG_HIDDEN
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;
}

LTTNG_HIDDEN
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;
}

LTTNG_HIDDEN
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;
}

LTTNG_HIDDEN
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_TRACEPOINT:
		create_from_payload =
				lttng_event_rule_tracepoint_create_from_payload;
		break;
	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_FUNCTION:
		/* TODO */
		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;
	}

	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;
}

LTTNG_HIDDEN
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;
}

LTTNG_HIDDEN
bool lttng_event_rule_get(struct lttng_event_rule *event_rule)
{
	return urcu_ref_get_unless_zero(&event_rule->ref);
}

LTTNG_HIDDEN
void lttng_event_rule_put(struct lttng_event_rule *event_rule)
{
	if (!event_rule) {
		return;
	}

	assert(event_rule->ref.refcount);
	urcu_ref_put(&event_rule->ref, lttng_event_rule_release);
}

LTTNG_HIDDEN
enum lttng_error_code lttng_event_rule_generate_filter_bytecode(
		struct lttng_event_rule *rule,
		const struct lttng_credentials *creds)
{
	assert(rule->generate_filter_bytecode);
	return rule->generate_filter_bytecode(rule, creds);
}

LTTNG_HIDDEN
const char *lttng_event_rule_get_filter(const struct lttng_event_rule *rule)
{
	assert(rule->get_filter);
	return rule->get_filter(rule);
}

LTTNG_HIDDEN
const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode(
		const struct lttng_event_rule *rule)
{
	assert(rule->get_filter_bytecode);
	return rule->get_filter_bytecode(rule);
}

LTTNG_HIDDEN
enum lttng_event_rule_generate_exclusions_status
lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule,
		struct lttng_event_exclusion **exclusions)
{
	assert(rule->generate_exclusions);
	return rule->generate_exclusions(rule, exclusions);
}

LTTNG_HIDDEN
struct lttng_event *lttng_event_rule_generate_lttng_event(
		const struct lttng_event_rule *rule)
{
	assert(rule->generate_lttng_event);
	return rule->generate_lttng_event(rule);
}

LTTNG_HIDDEN
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_TRACEPOINT:
		return "tracepoint";
	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_FUNCTION:
		return "function";
	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();
	}
}

LTTNG_HIDDEN
unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule)
{
	assert(rule->hash);
	return rule->hash(rule);
}
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
	9	#include <assert.h>
	10	#include <common/error.h>
	11	#include <common/macros.h>
	12	#include <common/payload.h>
	13	#include <common/payload-view.h>
959e3c66 JR	14	#include <common/hashtable/hashtable.h>
959e3c66 JR	15	#include <common/hashtable/utils.h>
7a3dcaf6	16	#include <lttng/event-rule/event-rule-internal.h>
85522de5	17	#include <lttng/event-rule/kernel-kprobe-internal.h>
4f7da553	18	#include <lttng/event-rule/kernel-syscall-internal.h>
138d6838	19	#include <lttng/event-rule/log4j-logging-internal.h>
b47b01d8	20	#include <lttng/event-rule/jul-logging-internal.h>
6530ec7d	21	#include <lttng/event-rule/python-logging-internal.h>
6d420eff	22	#include <lttng/event-rule/tracepoint-internal.h>
af0818ef	23	#include <lttng/event-rule/kernel-tracepoint-internal.h>
46fd07ac	24	#include <lttng/event-rule/kernel-uprobe-internal.h>
0a23a07d	25	#include <lttng/event-rule/user-tracepoint-internal.h>
7a3dcaf6 JR	26	#include <stdbool.h>
	27
	28	enum lttng_event_rule_type lttng_event_rule_get_type(
	29	const struct lttng_event_rule *event_rule)
	30	{
	31	return event_rule ? event_rule->type : LTTNG_EVENT_RULE_TYPE_UNKNOWN;
	32	}
	33
	34	LTTNG_HIDDEN
	35	enum lttng_domain_type lttng_event_rule_get_domain_type(
	36	const struct lttng_event_rule *event_rule)
	37	{
	38	enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
	39
	40	switch (lttng_event_rule_get_type(event_rule)) {
	41	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
6d420eff JR	42	{
	43	enum lttng_event_rule_status status;
	44	status = lttng_event_rule_tracepoint_get_domain_type(event_rule, &domain_type);
	45	assert(status == LTTNG_EVENT_RULE_STATUS_OK);
7a3dcaf6	46	break;
6d420eff	47	}
0a23a07d JR	48	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	49	domain_type = LTTNG_DOMAIN_UST;
	50	break;
b47b01d8 JR	51	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
	52	domain_type = LTTNG_DOMAIN_JUL;
	53	break;
138d6838 JR	54	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
	55	domain_type = LTTNG_DOMAIN_LOG4J;
	56	break;
6530ec7d JR	57	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	58	domain_type = LTTNG_DOMAIN_PYTHON;
	59	break;
4f7da553	60	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
85522de5	61	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
f2d09181	62	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
46fd07ac	63	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
af0818ef	64	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
7a3dcaf6 JR	65	domain_type = LTTNG_DOMAIN_KERNEL;
	66	break;
	67	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	68	domain_type = LTTNG_DOMAIN_NONE;
	69	break;
	70	}
	71
	72	return domain_type;
	73	}
	74
	75	static void lttng_event_rule_release(struct urcu_ref *ref)
	76	{
	77	struct lttng_event_rule *event_rule =
	78	container_of(ref, typeof(*event_rule), ref);
	79
	80	assert(event_rule->destroy);
	81	event_rule->destroy(event_rule);
	82	}
	83
	84	void lttng_event_rule_destroy(struct lttng_event_rule *event_rule)
	85	{
	86	lttng_event_rule_put(event_rule);
	87	}
	88
	89	LTTNG_HIDDEN
	90	bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule)
	91	{
	92	bool valid;
	93
	94	if (!event_rule) {
	95	valid = false;
	96	goto end;
	97	}
	98
	99	if (!event_rule->validate) {
	100	/* Sub-class guarantees that it can never be invalid. */
	101	valid = true;
	102	goto end;
	103	}
	104
	105	valid = event_rule->validate(event_rule);
	106	end:
	107	return valid;
	108	}
	109
	110	LTTNG_HIDDEN
	111	int lttng_event_rule_serialize(const struct lttng_event_rule *event_rule,
	112	struct lttng_payload *payload)
	113	{
	114	int ret;
	115	struct lttng_event_rule_comm event_rule_comm = {};
	116
	117	if (!event_rule) {
	118	ret = -1;
	119	goto end;
	120	}
	121
	122	event_rule_comm.event_rule_type = (int8_t) event_rule->type;
	123
	124	ret = lttng_dynamic_buffer_append(
	125	&payload->buffer, &event_rule_comm, sizeof(event_rule_comm));
	126	if (ret) {
	127	goto end;
	128	}
129
130	ret = event_rule->serialize(event_rule, payload);
131	if (ret) {
132	goto end;
133	}
134	end:
135	return ret;
136	}
137
138	LTTNG_HIDDEN
139	bool lttng_event_rule_is_equal(const struct lttng_event_rule *a,
140	const struct lttng_event_rule *b)
141	{
142	bool is_equal = false;
143
144	if (!a \|\| !b) {
145	goto end;
146	}
147
148	if (a->type != b->type) {
149	goto end;
150	}
151
152	if (a == b) {
153	is_equal = true;
154	goto end;
155	}
156
157	is_equal = a->equal ? a->equal(a, b) : true;
158	end:
159	return is_equal;
160	}
161
162	LTTNG_HIDDEN
163	ssize_t lttng_event_rule_create_from_payload(
164	struct lttng_payload_view *view,
165	struct lttng_event_rule **event_rule)
166	{
167	ssize_t ret, consumed = 0;
7a3dcaf6	168	event_rule_create_from_payload_cb create_from_payload = NULL;
3e6e0df2 JG	169	const struct lttng_event_rule_comm *event_rule_comm;
	170	const struct lttng_payload_view event_rule_comm_view =
	171	lttng_payload_view_from_view(
	172	view, 0, sizeof(*event_rule_comm));
7a3dcaf6 JR	173
	174	if (!view \|\| !event_rule) {
	175	ret = -1;
	176	goto end;
	177	}
	178
3e6e0df2 JG	179	if (!lttng_payload_view_is_valid(&event_rule_comm_view)) {
	180	ret = -1;
	181	goto end;
	182	}
	183
683d081a	184	DBG("Deserializing event_rule from payload");
3e6e0df2	185	event_rule_comm = (const struct lttng_event_rule_comm *) event_rule_comm_view.buffer.data;
7a3dcaf6 JR	186	consumed += sizeof(*event_rule_comm);
	187
	188	switch ((enum lttng_event_rule_type) event_rule_comm->event_rule_type) {
	189	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
6d420eff JR	190	create_from_payload =
6d420eff JR	191	lttng_event_rule_tracepoint_create_from_payload;
7a3dcaf6	192	break;
85522de5 JR	193	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
85522de5 JR	194	create_from_payload = lttng_event_rule_kernel_kprobe_create_from_payload;
7a3dcaf6	195	break;
f2d09181	196	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
7a3dcaf6 JR	197	/* TODO */
7a3dcaf6 JR	198	break;
46fd07ac JR	199	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
46fd07ac JR	200	create_from_payload = lttng_event_rule_kernel_uprobe_create_from_payload;
7a3dcaf6	201	break;
4f7da553	202	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
e6a39346	203	create_from_payload =
4f7da553	204	lttng_event_rule_kernel_syscall_create_from_payload;
7a3dcaf6	205	break;
af0818ef JR	206	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
	207	create_from_payload =
	208	lttng_event_rule_kernel_tracepoint_create_from_payload;
	209	break;
0a23a07d JR	210	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	211	create_from_payload =
	212	lttng_event_rule_user_tracepoint_create_from_payload;
	213	break;
b47b01d8 JR	214	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
	215	create_from_payload =
	216	lttng_event_rule_jul_logging_create_from_payload;
	217	break;
138d6838 JR	218	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
	219	create_from_payload =
	220	lttng_event_rule_log4j_logging_create_from_payload;
	221	break;
6530ec7d JR	222	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	223	create_from_payload =
	224	lttng_event_rule_python_logging_create_from_payload;
	225	break;
7a3dcaf6 JR	226	default:
	227	ERR("Attempted to create event rule of unknown type (%i)",
	228	(int) event_rule_comm->event_rule_type);
	229	ret = -1;
	230	goto end;
	231	}
	232
	233	assert(create_from_payload);
	234
	235	{
	236	struct lttng_payload_view child_view =
	237	lttng_payload_view_from_view(
	238	view, consumed, -1);
	239
	240	ret = create_from_payload(&child_view, event_rule);
	241	if (ret < 0) {
	242	goto end;
	243	}
	244
	245	consumed += ret;
	246	}
	247
	248	if (!lttng_event_rule_validate(*event_rule)) {
	249	ret = -1;
	250	goto end;
	251	}
	252
	253	ret = consumed;
	254	end:
	255	return ret;
	256	}
	257
	258	LTTNG_HIDDEN
	259	void lttng_event_rule_init(struct lttng_event_rule *event_rule,
	260	enum lttng_event_rule_type type)
	261	{
	262	urcu_ref_init(&event_rule->ref);
	263	event_rule->type = type;
	264	}
	265
	266	LTTNG_HIDDEN
	267	bool lttng_event_rule_get(struct lttng_event_rule *event_rule)
	268	{
	269	return urcu_ref_get_unless_zero(&event_rule->ref);
	270	}
	271
	272	LTTNG_HIDDEN
	273	void lttng_event_rule_put(struct lttng_event_rule *event_rule)
	274	{
	275	if (!event_rule) {
	276	return;
	277	}
	278
	279	assert(event_rule->ref.refcount);
	280	urcu_ref_put(&event_rule->ref, lttng_event_rule_release);
	281	}
	282
	283	LTTNG_HIDDEN
	284	enum lttng_error_code lttng_event_rule_generate_filter_bytecode(
58daac01 JR	285	struct lttng_event_rule *rule,
58daac01 JR	286	const struct lttng_credentials *creds)
7a3dcaf6 JR	287	{
7a3dcaf6 JR	288	assert(rule->generate_filter_bytecode);
58daac01	289	return rule->generate_filter_bytecode(rule, creds);
7a3dcaf6 JR	290	}
	291
	292	LTTNG_HIDDEN
	293	const char lttng_event_rule_get_filter(const struct lttng_event_rule rule)
	294	{
	295	assert(rule->get_filter);
	296	return rule->get_filter(rule);
	297	}
	298
	299	LTTNG_HIDDEN
2b00d462	300	const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode(
7a3dcaf6 JR	301	const struct lttng_event_rule *rule)
	302	{
	303	assert(rule->get_filter_bytecode);
	304	return rule->get_filter_bytecode(rule);
	305	}
	306
	307	LTTNG_HIDDEN
993578ff JR	308	enum lttng_event_rule_generate_exclusions_status
	309	lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule,
	310	struct lttng_event_exclusion **exclusions)
7a3dcaf6 JR	311	{
7a3dcaf6 JR	312	assert(rule->generate_exclusions);
993578ff	313	return rule->generate_exclusions(rule, exclusions);
7a3dcaf6 JR	314	}
	315
	316	LTTNG_HIDDEN
44760c20 JR	317	struct lttng_event *lttng_event_rule_generate_lttng_event(
	318	const struct lttng_event_rule *rule)
	319	{
	320	assert(rule->generate_lttng_event);
	321	return rule->generate_lttng_event(rule);
	322	}
	323
	324	LTTNG_HIDDEN
	325	bool lttng_event_rule_targets_agent_domain(const struct lttng_event_rule *rule)
	326	{
	327	bool targets_agent_domain = false;
	328	enum lttng_domain_type type = lttng_event_rule_get_domain_type(rule);
	329
	330	switch (type) {
	331	case LTTNG_DOMAIN_JUL:
	332	case LTTNG_DOMAIN_LOG4J:
	333	case LTTNG_DOMAIN_PYTHON:
	334	targets_agent_domain = true;
	335	break;
	336	case LTTNG_DOMAIN_UST:
	337	case LTTNG_DOMAIN_KERNEL:
	338	targets_agent_domain = false;
	339	break;
	340	default:
	341	abort();
	342	};
	343
	344	return targets_agent_domain;
	345	}
	346
7a3dcaf6 JR	347	const char *lttng_event_rule_type_str(enum lttng_event_rule_type type)
	348	{
	349	switch (type) {
	350	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	351	return "unknown";
	352	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
	353	return "tracepoint";
4f7da553 JR	354	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
4f7da553 JR	355	return "kernel syscall";
85522de5 JR	356	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
85522de5 JR	357	return "kernel kprobe";
f2d09181	358	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
7a3dcaf6	359	return "function";
46fd07ac JR	360	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
46fd07ac JR	361	return "kernel uprobe";
af0818ef JR	362	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
af0818ef JR	363	return "kernel tracepoint";
0a23a07d JR	364	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
0a23a07d JR	365	return "user tracepoint";
b47b01d8 JR	366	case LTTNG_EVENT_RULE_TYPE_JUL_LOGGING:
b47b01d8 JR	367	return "jul logging";
138d6838 JR	368	case LTTNG_EVENT_RULE_TYPE_LOG4J_LOGGING:
138d6838 JR	369	return "log4j logging";
6530ec7d JR	370	case LTTNG_EVENT_RULE_TYPE_PYTHON_LOGGING:
	371	return "python logging";
	372
7a3dcaf6 JR	373	default:
	374	abort();
	375	}
	376	}
959e3c66 JR	377
	378	LTTNG_HIDDEN
	379	unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule)
	380	{
	381	assert(rule->hash);
	382	return rule->hash(rule);
	383	}