Warn when exclusion names are truncated
[lttng-tools.git] / tests / unit / test_ust_data.c
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1/*
2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * as published by the Free Software Foundation; only version 2
7 * of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
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19#include <assert.h>
20#include <errno.h>
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24#include <unistd.h>
25#include <time.h>
26
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27#include <lttng/lttng.h>
28#include <bin/lttng-sessiond/lttng-ust-abi.h>
990570ed 29#include <common/defaults.h>
10a8a223 30#include <bin/lttng-sessiond/trace-ust.h>
7972aab2 31#include <bin/lttng-sessiond/ust-app.h>
10a8a223 32
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33#include <tap/tap.h>
34
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35/* This path will NEVER be created in this test */
36#define PATH1 "/tmp/.test-junk-lttng"
37
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38#define RANDOM_STRING_LEN 11
39
657270a4 40/* Number of TAP tests in this file */
c710ece7 41#define NUM_TESTS 11
657270a4 42
ad7c9c18 43/* For error.h */
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44int lttng_opt_quiet = 1;
45int lttng_opt_verbose;
c7e35b03 46int lttng_opt_mi;
d3e8f6bb 47
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48int ust_consumerd32_fd;
49int ust_consumerd64_fd;
50
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51/* Global variable required by sessiond objects being linked-in */
52struct lttng_ht *agent_apps_ht_by_sock;
53
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54static const char alphanum[] =
55 "0123456789"
56 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
57 "abcdefghijklmnopqrstuvwxyz";
98612240 58static char random_string[RANDOM_STRING_LEN];
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59
60static struct ltt_ust_session *usess;
61static struct lttng_domain dom;
62
63/*
64 * Return random string of 10 characters.
98612240 65 * Not thread-safe.
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66 */
67static char *get_random_string(void)
68{
69 int i;
d3e8f6bb 70
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71 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
72 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
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73 }
74
98612240 75 random_string[RANDOM_STRING_LEN - 1] = '\0';
d3e8f6bb 76
98612240 77 return random_string;
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78}
79
657270a4 80static void test_create_one_ust_session(void)
d3e8f6bb 81{
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82 dom.type = LTTNG_DOMAIN_UST;
83
dec56f6c 84 usess = trace_ust_create_session(42);
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85 ok(usess != NULL, "Create UST session");
86
87 ok(usess->id == 42 &&
14fb1ebe 88 usess->active == 0 &&
657270a4 89 usess->domain_global.channels != NULL &&
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90 usess->uid == 0 &&
91 usess->gid == 0,
92 "Validate UST session");
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93
94 trace_ust_destroy_session(usess);
95}
96
657270a4 97static void test_create_ust_channel(void)
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98{
99 struct ltt_ust_channel *uchan;
100 struct lttng_channel attr;
101
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102 memset(&attr, 0, sizeof(attr));
103
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104 strncpy(attr.name, "channel0", 8);
105
51755dc8 106 uchan = trace_ust_create_channel(&attr, LTTNG_DOMAIN_UST);
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107 ok(uchan != NULL, "Create UST channel");
108
109 ok(uchan->enabled == 0 &&
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110 strncmp(uchan->name, "channel0", 8) == 0 &&
111 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
112 uchan->ctx != NULL &&
113 uchan->events != NULL &&
114 uchan->attr.overwrite == attr.attr.overwrite,
115 "Validate UST channel");
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116
117 trace_ust_destroy_channel(uchan);
118}
119
657270a4 120static void test_create_ust_event(void)
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121{
122 struct ltt_ust_event *event;
123 struct lttng_event ev;
124
441c16a7 125 memset(&ev, 0, sizeof(ev));
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126 strncpy(ev.name, get_random_string(), LTTNG_SYMBOL_NAME_LEN);
127 ev.type = LTTNG_EVENT_TRACEPOINT;
441c16a7 128 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
d3e8f6bb 129
88f06f15 130 event = trace_ust_create_event(&ev, NULL, NULL, NULL, false);
d3e8f6bb 131
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132 ok(event != NULL, "Create UST event");
133
134 ok(event->enabled == 0 &&
135 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
136 strcmp(event->attr.name, ev.name) == 0 &&
137 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
138 "Validate UST event");
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139
140 trace_ust_destroy_event(event);
141}
142
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143static void test_create_ust_event_exclusion(void)
144{
145 struct ltt_ust_event *event;
146 struct lttng_event ev;
147 char *name;
148 struct lttng_event_exclusion *exclusion;
149
150 memset(&ev, 0, sizeof(ev));
151
152 /* make a wildcarded event name */
153 name = get_random_string();
154 name[strlen(name) - 1] = '*';
155 strncpy(ev.name, name, LTTNG_SYMBOL_NAME_LEN);
156
157 ev.type = LTTNG_EVENT_TRACEPOINT;
158 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
159
160 /* set up an exclusion set */
161 exclusion = zmalloc(sizeof(*exclusion) + LTTNG_SYMBOL_NAME_LEN);
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162 if (!exclusion) {
163 PERROR("zmalloc");
164 }
165
166 ok(exclusion != NULL, "Create UST exclusion");
167
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168 exclusion->count = 1;
169 strncpy((char *)(exclusion->names), get_random_string(), LTTNG_SYMBOL_NAME_LEN);
170
88f06f15 171 event = trace_ust_create_event(&ev, NULL, NULL, exclusion, false);
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172
173 ok(event != NULL, "Create UST event with exclusion");
174
175 ok(event->enabled == 0 &&
176 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
177 strcmp(event->attr.name, ev.name) == 0 &&
178 event->exclusion != NULL &&
179 event->exclusion->count == 1 &&
180 strcmp((char *)(event->exclusion->names), (char *)(exclusion->names)) == 0 &&
181 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
182 "Validate UST event and exclusion");
183
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184 trace_ust_destroy_event(event);
185}
186
187
657270a4 188static void test_create_ust_context(void)
d3e8f6bb 189{
e38021f8 190 struct lttng_event_context ectx;
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191 struct ltt_ust_context *uctx;
192
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193 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
194
e38021f8 195 uctx = trace_ust_create_context(&ectx);
657270a4 196 ok(uctx != NULL, "Create UST context");
d3e8f6bb 197
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198 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
199 "Validate UST context");
f949b23e 200 free(uctx);
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201}
202
203int main(int argc, char **argv)
204{
657270a4 205 plan_tests(NUM_TESTS);
d3e8f6bb 206
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207 diag("UST data structures unit test");
208
657270a4 209 test_create_one_ust_session();
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210 test_create_ust_channel();
211 test_create_ust_event();
212 test_create_ust_context();
41d7b959 213 test_create_ust_event_exclusion();
d3e8f6bb 214
657270a4 215 return exit_status();
d3e8f6bb 216}
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