6d05b6d1d3ed38b2f789e30f731d6ec6d6a18276
[lttng-tools.git] / include / lttng / trigger / trigger-internal.h
1 /*
2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef LTTNG_TRIGGER_INTERNAL_H
9 #define LTTNG_TRIGGER_INTERNAL_H
10
11 #include <lttng/trigger/trigger.h>
12 #include <common/credentials.h>
13 #include <common/macros.h>
14 #include <common/optional.h>
15 #include <stdint.h>
16 #include <stdbool.h>
17 #include <sys/types.h>
18 #include <urcu/ref.h>
19
20 struct lttng_payload;
21 struct lttng_payload_view;
22
23 struct lttng_trigger {
24 /* Reference counting is only exposed to internal users. */
25 struct urcu_ref ref;
26
27 struct lttng_condition *condition;
28 struct lttng_action *action;
29 /* For now only the uid portion of the credentials is used. */
30 struct lttng_credentials creds;
31 };
32
33 struct lttng_trigger_comm {
34 /* length excludes its own length. */
35 uint32_t length;
36 /*
37 * Credentials, only the uid portion is used for now.
38 * Used as an override when desired by the root user.
39 */
40 uint64_t uid;
41 /* A condition and action object follow. */
42 char payload[];
43 } LTTNG_PACKED;
44
45 LTTNG_HIDDEN
46 ssize_t lttng_trigger_create_from_payload(struct lttng_payload_view *view,
47 struct lttng_trigger **trigger);
48
49 LTTNG_HIDDEN
50 int lttng_trigger_serialize(struct lttng_trigger *trigger,
51 struct lttng_payload *payload);
52
53 LTTNG_HIDDEN
54 const struct lttng_condition *lttng_trigger_get_const_condition(
55 const struct lttng_trigger *trigger);
56
57 LTTNG_HIDDEN
58 const struct lttng_action *lttng_trigger_get_const_action(
59 const struct lttng_trigger *trigger);
60
61 LTTNG_HIDDEN
62 bool lttng_trigger_validate(struct lttng_trigger *trigger);
63
64 LTTNG_HIDDEN
65 bool lttng_trigger_is_equal(
66 const struct lttng_trigger *a, const struct lttng_trigger *b);
67
68 LTTNG_HIDDEN
69 void lttng_trigger_get(struct lttng_trigger *trigger);
70
71 LTTNG_HIDDEN
72 void lttng_trigger_put(struct lttng_trigger *trigger);
73
74 LTTNG_HIDDEN
75 const struct lttng_credentials *lttng_trigger_get_credentials(
76 const struct lttng_trigger *trigger);
77
78 LTTNG_HIDDEN
79 void lttng_trigger_set_credentials(struct lttng_trigger *trigger,
80 const struct lttng_credentials *creds);
81
82 #endif /* LTTNG_TRIGGER_INTERNAL_H */
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