[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/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_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;
	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";
	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>
d84633c4	17	#include <lttng/event-rule/kernel-kprobe-internal.h>
213efb0c	18	#include <lttng/event-rule/kernel-syscall-internal.h>
6d420eff	19	#include <lttng/event-rule/tracepoint-internal.h>
b25b2570	20	#include <lttng/event-rule/kernel-tracepoint-internal.h>
e60e9a9a	21	#include <lttng/event-rule/kernel-uprobe-internal.h>
cc66eccf	22	#include <lttng/event-rule/user-tracepoint-internal.h>
7a3dcaf6 JR	23	#include <stdbool.h>
	24
	25	enum lttng_event_rule_type lttng_event_rule_get_type(
	26	const struct lttng_event_rule *event_rule)
	27	{
	28	return event_rule ? event_rule->type : LTTNG_EVENT_RULE_TYPE_UNKNOWN;
	29	}
	30
	31	LTTNG_HIDDEN
	32	enum lttng_domain_type lttng_event_rule_get_domain_type(
	33	const struct lttng_event_rule *event_rule)
	34	{
	35	enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
	36
	37	switch (lttng_event_rule_get_type(event_rule)) {
	38	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
6d420eff JR	39	{
	40	enum lttng_event_rule_status status;
	41	status = lttng_event_rule_tracepoint_get_domain_type(event_rule, &domain_type);
	42	assert(status == LTTNG_EVENT_RULE_STATUS_OK);
7a3dcaf6	43	break;
6d420eff	44	}
cc66eccf JR	45	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	46	domain_type = LTTNG_DOMAIN_UST;
	47	break;
213efb0c	48	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
d84633c4	49	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
f2d09181	50	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
e60e9a9a	51	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
b25b2570	52	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
7a3dcaf6 JR	53	domain_type = LTTNG_DOMAIN_KERNEL;
	54	break;
	55	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	56	domain_type = LTTNG_DOMAIN_NONE;
	57	break;
	58	}
	59
	60	return domain_type;
	61	}
	62
	63	static void lttng_event_rule_release(struct urcu_ref *ref)
	64	{
	65	struct lttng_event_rule *event_rule =
	66	container_of(ref, typeof(*event_rule), ref);
	67
	68	assert(event_rule->destroy);
	69	event_rule->destroy(event_rule);
	70	}
	71
	72	void lttng_event_rule_destroy(struct lttng_event_rule *event_rule)
	73	{
	74	lttng_event_rule_put(event_rule);
	75	}
	76
	77	LTTNG_HIDDEN
	78	bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule)
	79	{
	80	bool valid;
	81
	82	if (!event_rule) {
	83	valid = false;
	84	goto end;
	85	}
	86
	87	if (!event_rule->validate) {
	88	/* Sub-class guarantees that it can never be invalid. */
	89	valid = true;
	90	goto end;
	91	}
	92
	93	valid = event_rule->validate(event_rule);
	94	end:
	95	return valid;
	96	}
	97
	98	LTTNG_HIDDEN
	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
126	LTTNG_HIDDEN
127	bool lttng_event_rule_is_equal(const struct lttng_event_rule *a,
128	const struct lttng_event_rule *b)
129	{
130	bool is_equal = false;
131
132	if (!a \|\| !b) {
133	goto end;
134	}
135
136	if (a->type != b->type) {
137	goto end;
138	}
139
140	if (a == b) {
141	is_equal = true;
142	goto end;
143	}
144
145	is_equal = a->equal ? a->equal(a, b) : true;
146	end:
147	return is_equal;
148	}
149
150	LTTNG_HIDDEN
151	ssize_t lttng_event_rule_create_from_payload(
152	struct lttng_payload_view *view,
153	struct lttng_event_rule **event_rule)
154	{
155	ssize_t ret, consumed = 0;
7a3dcaf6	156	event_rule_create_from_payload_cb create_from_payload = NULL;
3e6e0df2 JG	157	const struct lttng_event_rule_comm *event_rule_comm;
	158	const struct lttng_payload_view event_rule_comm_view =
	159	lttng_payload_view_from_view(
	160	view, 0, sizeof(*event_rule_comm));
7a3dcaf6 JR	161
	162	if (!view \|\| !event_rule) {
	163	ret = -1;
	164	goto end;
	165	}
	166
3e6e0df2 JG	167	if (!lttng_payload_view_is_valid(&event_rule_comm_view)) {
	168	ret = -1;
	169	goto end;
	170	}
	171
683d081a	172	DBG("Deserializing event_rule from payload");
3e6e0df2	173	event_rule_comm = (const struct lttng_event_rule_comm *) event_rule_comm_view.buffer.data;
7a3dcaf6 JR	174	consumed += sizeof(*event_rule_comm);
	175
	176	switch ((enum lttng_event_rule_type) event_rule_comm->event_rule_type) {
	177	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
6d420eff JR	178	create_from_payload =
6d420eff JR	179	lttng_event_rule_tracepoint_create_from_payload;
7a3dcaf6	180	break;
d84633c4 JR	181	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
d84633c4 JR	182	create_from_payload = lttng_event_rule_kernel_kprobe_create_from_payload;
7a3dcaf6	183	break;
f2d09181	184	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
7a3dcaf6 JR	185	/* TODO */
7a3dcaf6 JR	186	break;
e60e9a9a JR	187	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
e60e9a9a JR	188	create_from_payload = lttng_event_rule_kernel_uprobe_create_from_payload;
7a3dcaf6	189	break;
213efb0c	190	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
e6a39346	191	create_from_payload =
213efb0c	192	lttng_event_rule_kernel_syscall_create_from_payload;
7a3dcaf6	193	break;
b25b2570 JR	194	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
	195	create_from_payload =
	196	lttng_event_rule_kernel_tracepoint_create_from_payload;
	197	break;
cc66eccf JR	198	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
	199	create_from_payload =
	200	lttng_event_rule_user_tracepoint_create_from_payload;
	201	break;
7a3dcaf6 JR	202	default:
	203	ERR("Attempted to create event rule of unknown type (%i)",
	204	(int) event_rule_comm->event_rule_type);
	205	ret = -1;
	206	goto end;
	207	}
	208
	209	assert(create_from_payload);
	210
	211	{
	212	struct lttng_payload_view child_view =
	213	lttng_payload_view_from_view(
	214	view, consumed, -1);
	215
	216	ret = create_from_payload(&child_view, event_rule);
	217	if (ret < 0) {
	218	goto end;
	219	}
	220
	221	consumed += ret;
	222	}
	223
	224	if (!lttng_event_rule_validate(*event_rule)) {
	225	ret = -1;
	226	goto end;
	227	}
	228
	229	ret = consumed;
	230	end:
	231	return ret;
	232	}
	233
	234	LTTNG_HIDDEN
	235	void lttng_event_rule_init(struct lttng_event_rule *event_rule,
	236	enum lttng_event_rule_type type)
	237	{
	238	urcu_ref_init(&event_rule->ref);
	239	event_rule->type = type;
	240	}
	241
	242	LTTNG_HIDDEN
	243	bool lttng_event_rule_get(struct lttng_event_rule *event_rule)
	244	{
	245	return urcu_ref_get_unless_zero(&event_rule->ref);
	246	}
	247
	248	LTTNG_HIDDEN
	249	void lttng_event_rule_put(struct lttng_event_rule *event_rule)
	250	{
	251	if (!event_rule) {
	252	return;
	253	}
	254
	255	assert(event_rule->ref.refcount);
	256	urcu_ref_put(&event_rule->ref, lttng_event_rule_release);
	257	}
	258
	259	LTTNG_HIDDEN
	260	enum lttng_error_code lttng_event_rule_generate_filter_bytecode(
58daac01 JR	261	struct lttng_event_rule *rule,
58daac01 JR	262	const struct lttng_credentials *creds)
7a3dcaf6 JR	263	{
7a3dcaf6 JR	264	assert(rule->generate_filter_bytecode);
58daac01	265	return rule->generate_filter_bytecode(rule, creds);
7a3dcaf6 JR	266	}
	267
	268	LTTNG_HIDDEN
	269	const char lttng_event_rule_get_filter(const struct lttng_event_rule rule)
	270	{
	271	assert(rule->get_filter);
	272	return rule->get_filter(rule);
	273	}
	274
	275	LTTNG_HIDDEN
2b00d462	276	const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode(
7a3dcaf6 JR	277	const struct lttng_event_rule *rule)
	278	{
	279	assert(rule->get_filter_bytecode);
	280	return rule->get_filter_bytecode(rule);
	281	}
	282
	283	LTTNG_HIDDEN
993578ff JR	284	enum lttng_event_rule_generate_exclusions_status
	285	lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule,
	286	struct lttng_event_exclusion **exclusions)
7a3dcaf6 JR	287	{
7a3dcaf6 JR	288	assert(rule->generate_exclusions);
993578ff	289	return rule->generate_exclusions(rule, exclusions);
7a3dcaf6 JR	290	}
	291
	292	LTTNG_HIDDEN
44760c20 JR	293	struct lttng_event *lttng_event_rule_generate_lttng_event(
	294	const struct lttng_event_rule *rule)
	295	{
	296	assert(rule->generate_lttng_event);
	297	return rule->generate_lttng_event(rule);
	298	}
	299
	300	LTTNG_HIDDEN
	301	bool lttng_event_rule_targets_agent_domain(const struct lttng_event_rule *rule)
	302	{
	303	bool targets_agent_domain = false;
	304	enum lttng_domain_type type = lttng_event_rule_get_domain_type(rule);
	305
	306	switch (type) {
	307	case LTTNG_DOMAIN_JUL:
	308	case LTTNG_DOMAIN_LOG4J:
	309	case LTTNG_DOMAIN_PYTHON:
	310	targets_agent_domain = true;
	311	break;
	312	case LTTNG_DOMAIN_UST:
	313	case LTTNG_DOMAIN_KERNEL:
	314	targets_agent_domain = false;
	315	break;
	316	default:
	317	abort();
	318	};
	319
	320	return targets_agent_domain;
	321	}
	322
7a3dcaf6 JR	323	const char *lttng_event_rule_type_str(enum lttng_event_rule_type type)
	324	{
	325	switch (type) {
	326	case LTTNG_EVENT_RULE_TYPE_UNKNOWN:
	327	return "unknown";
	328	case LTTNG_EVENT_RULE_TYPE_TRACEPOINT:
	329	return "tracepoint";
213efb0c JR	330	case LTTNG_EVENT_RULE_TYPE_KERNEL_SYSCALL:
213efb0c JR	331	return "kernel syscall";
d84633c4 JR	332	case LTTNG_EVENT_RULE_TYPE_KERNEL_KPROBE:
d84633c4 JR	333	return "kernel kprobe";
f2d09181	334	case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION:
7a3dcaf6	335	return "function";
e60e9a9a JR	336	case LTTNG_EVENT_RULE_TYPE_KERNEL_UPROBE:
e60e9a9a JR	337	return "kernel uprobe";
b25b2570 JR	338	case LTTNG_EVENT_RULE_TYPE_KERNEL_TRACEPOINT:
b25b2570 JR	339	return "kernel tracepoint";
cc66eccf JR	340	case LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT:
cc66eccf JR	341	return "user tracepoint";
7a3dcaf6 JR	342	default:
	343	abort();
	344	}
	345	}
959e3c66 JR	346
	347	LTTNG_HIDDEN
	348	unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule)
	349	{
	350	assert(rule->hash);
	351	return rule->hash(rule);
	352	}