Commit | Line | Data |
---|---|---|
b579acd9 | 1 | /* |
21cf9b6b | 2 | * Copyright (C) 2011 EfficiOS Inc. |
ab5be9fa | 3 | * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
b579acd9 | 4 | * |
ab5be9fa | 5 | * SPDX-License-Identifier: GPL-2.0-only |
b579acd9 | 6 | * |
b579acd9 DG |
7 | */ |
8 | ||
6c1c0768 | 9 | #define _LGPL_SOURCE |
28ab034a JG |
10 | #include "agent.hpp" |
11 | #include "context.hpp" | |
12 | #include "kernel.hpp" | |
13 | #include "trace-ust.hpp" | |
14 | #include "ust-app.hpp" | |
15 | ||
16 | #include <common/error.hpp> | |
17 | #include <common/sessiond-comm/sessiond-comm.hpp> | |
56047f5a | 18 | #include <common/urcu.hpp> |
28ab034a | 19 | |
b579acd9 | 20 | #include <stdio.h> |
b579acd9 | 21 | #include <unistd.h> |
54d01ffb | 22 | #include <urcu/list.h> |
1e307fab | 23 | |
b579acd9 DG |
24 | /* |
25 | * Add kernel context to all channel. | |
df3c77c8 JG |
26 | * |
27 | * Assumes the ownership of kctx. | |
b579acd9 DG |
28 | */ |
29 | static int add_kctx_all_channels(struct ltt_kernel_session *ksession, | |
28ab034a | 30 | struct ltt_kernel_context *kctx) |
b579acd9 | 31 | { |
601d5acf | 32 | int ret; |
b579acd9 DG |
33 | struct ltt_kernel_channel *kchan; |
34 | ||
a0377dfe FD |
35 | LTTNG_ASSERT(ksession); |
36 | LTTNG_ASSERT(kctx); | |
0525e9ae | 37 | |
601d5acf | 38 | DBG("Adding kernel context to all channels"); |
b579acd9 DG |
39 | |
40 | /* Go over all channels */ | |
28ab034a | 41 | cds_list_for_each_entry (kchan, &ksession->channel_list.head, list) { |
df3c77c8 JG |
42 | struct ltt_kernel_context *kctx_copy; |
43 | ||
44 | kctx_copy = trace_kernel_copy_context(kctx); | |
45 | if (!kctx_copy) { | |
46 | PERROR("zmalloc ltt_kernel_context"); | |
7682f304 | 47 | ret = -LTTNG_ERR_NOMEM; |
df3c77c8 JG |
48 | goto error; |
49 | } | |
50 | ||
51 | /* Ownership of kctx_copy is transferred to the callee. */ | |
52 | ret = kernel_add_channel_context(kchan, kctx_copy); | |
cd9adb8b | 53 | kctx_copy = nullptr; |
1ae5e83e | 54 | if (ret != 0) { |
601d5acf | 55 | goto error; |
b579acd9 DG |
56 | } |
57 | } | |
58 | ||
f73fabfd | 59 | ret = LTTNG_OK; |
b579acd9 DG |
60 | |
61 | error: | |
df3c77c8 | 62 | trace_kernel_destroy_context(kctx); |
b579acd9 DG |
63 | return ret; |
64 | } | |
65 | ||
66 | /* | |
67 | * Add kernel context to a specific channel. | |
df3c77c8 JG |
68 | * |
69 | * Assumes the ownership of kctx. | |
b579acd9 | 70 | */ |
28ab034a | 71 | static int add_kctx_to_channel(struct ltt_kernel_context *kctx, struct ltt_kernel_channel *kchan) |
b579acd9 | 72 | { |
601d5acf | 73 | int ret; |
b579acd9 | 74 | |
a0377dfe FD |
75 | LTTNG_ASSERT(kchan); |
76 | LTTNG_ASSERT(kctx); | |
0525e9ae | 77 | |
601d5acf | 78 | DBG("Add kernel context to channel '%s'", kchan->channel->name); |
b579acd9 | 79 | |
df3c77c8 | 80 | /* Ownership of kctx is transferred to the callee. */ |
601d5acf | 81 | ret = kernel_add_channel_context(kchan, kctx); |
cd9adb8b | 82 | kctx = nullptr; |
1ae5e83e | 83 | if (ret != 0) { |
b579acd9 DG |
84 | goto error; |
85 | } | |
86 | ||
f73fabfd | 87 | ret = LTTNG_OK; |
b579acd9 DG |
88 | |
89 | error: | |
90 | return ret; | |
91 | } | |
92 | ||
6b79ed20 DG |
93 | /* |
94 | * Add UST context to channel. | |
95 | */ | |
4ce7709b | 96 | static int add_uctx_to_channel(struct ltt_ust_session *usess, |
28ab034a JG |
97 | enum lttng_domain_type domain, |
98 | struct ltt_ust_channel *uchan, | |
99 | const struct lttng_event_context *ctx) | |
6b79ed20 DG |
100 | { |
101 | int ret; | |
cd9adb8b | 102 | struct ltt_ust_context *uctx = nullptr; |
6b79ed20 | 103 | |
a0377dfe FD |
104 | LTTNG_ASSERT(usess); |
105 | LTTNG_ASSERT(uchan); | |
106 | LTTNG_ASSERT(ctx); | |
0525e9ae | 107 | |
aa3514e9 | 108 | /* Check if context is duplicate */ |
28ab034a | 109 | cds_list_for_each_entry (uctx, &uchan->ctx_list, list) { |
aa3514e9 | 110 | if (trace_ust_match_context(uctx, ctx)) { |
7682f304 | 111 | ret = LTTNG_ERR_UST_CONTEXT_EXIST; |
aa3514e9 MD |
112 | goto duplicate; |
113 | } | |
114 | } | |
cd9adb8b | 115 | uctx = nullptr; |
bdf64013 JG |
116 | |
117 | switch (domain) { | |
118 | case LTTNG_DOMAIN_JUL: | |
119 | case LTTNG_DOMAIN_LOG4J: | |
120 | { | |
442f8c07 JG |
121 | struct agent *agt; |
122 | ||
123 | if (ctx->ctx != LTTNG_EVENT_CONTEXT_APP_CONTEXT) { | |
124 | /* Other contexts are not needed by the agent. */ | |
125 | break; | |
126 | } | |
127 | agt = trace_ust_find_agent(usess, domain); | |
bdf64013 JG |
128 | |
129 | if (!agt) { | |
130 | agt = agent_create(domain); | |
131 | if (!agt) { | |
7682f304 | 132 | ret = -LTTNG_ERR_NOMEM; |
bdf64013 JG |
133 | goto error; |
134 | } | |
135 | agent_add(agt, usess->agents); | |
136 | } | |
137 | ret = agent_add_context(ctx, agt); | |
138 | if (ret != LTTNG_OK) { | |
139 | goto error; | |
140 | } | |
141 | ||
142 | ret = agent_enable_context(ctx, domain); | |
143 | if (ret != LTTNG_OK) { | |
144 | goto error; | |
145 | } | |
146 | break; | |
147 | } | |
148 | case LTTNG_DOMAIN_UST: | |
149 | break; | |
150 | default: | |
a0377dfe | 151 | abort(); |
bdf64013 | 152 | } |
aa3514e9 | 153 | |
6b79ed20 DG |
154 | /* Create ltt UST context */ |
155 | uctx = trace_ust_create_context(ctx); | |
cd9adb8b | 156 | if (uctx == nullptr) { |
7682f304 | 157 | ret = LTTNG_ERR_UST_CONTEXT_INVAL; |
6b79ed20 DG |
158 | goto error; |
159 | } | |
160 | ||
6b79ed20 | 161 | /* Add ltt UST context node to ltt UST channel */ |
aa3514e9 | 162 | lttng_ht_add_ulong(uchan->ctx, &uctx->node); |
31746f93 | 163 | cds_list_add_tail(&uctx->list, &uchan->ctx_list); |
6b79ed20 | 164 | |
88e3c2f5 JG |
165 | if (!usess->active) { |
166 | goto end; | |
167 | } | |
168 | ||
169 | ret = ust_app_add_ctx_channel_glb(usess, uchan, uctx); | |
170 | if (ret < 0) { | |
171 | goto error; | |
172 | } | |
173 | end: | |
727d5404 DG |
174 | DBG("Context UST %d added to channel %s", uctx->ctx.ctx, uchan->name); |
175 | ||
176 | return 0; | |
6b79ed20 DG |
177 | |
178 | error: | |
179 | free(uctx); | |
aa3514e9 | 180 | duplicate: |
6b79ed20 DG |
181 | return ret; |
182 | } | |
183 | ||
b579acd9 DG |
184 | /* |
185 | * Add kernel context to tracer. | |
186 | */ | |
54d01ffb | 187 | int context_kernel_add(struct ltt_kernel_session *ksession, |
28ab034a JG |
188 | const struct lttng_event_context *ctx, |
189 | const char *channel_name) | |
b579acd9 DG |
190 | { |
191 | int ret; | |
192 | struct ltt_kernel_channel *kchan; | |
645328ae | 193 | struct ltt_kernel_context *kctx; |
54d01ffb | 194 | |
a0377dfe FD |
195 | LTTNG_ASSERT(ksession); |
196 | LTTNG_ASSERT(ctx); | |
197 | LTTNG_ASSERT(channel_name); | |
0525e9ae | 198 | |
cd9adb8b | 199 | kctx = trace_kernel_create_context(nullptr); |
645328ae | 200 | if (!kctx) { |
7682f304 | 201 | ret = -LTTNG_ERR_NOMEM; |
645328ae DG |
202 | goto error; |
203 | } | |
204 | ||
54d01ffb | 205 | /* Setup kernel context structure */ |
9197c5c4 MD |
206 | switch (ctx->ctx) { |
207 | case LTTNG_EVENT_CONTEXT_PID: | |
b8e2fb80 | 208 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PID; |
9197c5c4 | 209 | break; |
9197c5c4 | 210 | case LTTNG_EVENT_CONTEXT_PROCNAME: |
b8e2fb80 | 211 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PROCNAME; |
9197c5c4 MD |
212 | break; |
213 | case LTTNG_EVENT_CONTEXT_PRIO: | |
b8e2fb80 | 214 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PRIO; |
9197c5c4 MD |
215 | break; |
216 | case LTTNG_EVENT_CONTEXT_NICE: | |
b8e2fb80 | 217 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_NICE; |
9197c5c4 MD |
218 | break; |
219 | case LTTNG_EVENT_CONTEXT_VPID: | |
b8e2fb80 | 220 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VPID; |
9197c5c4 MD |
221 | break; |
222 | case LTTNG_EVENT_CONTEXT_TID: | |
b8e2fb80 | 223 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_TID; |
9197c5c4 MD |
224 | break; |
225 | case LTTNG_EVENT_CONTEXT_VTID: | |
b8e2fb80 | 226 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VTID; |
9197c5c4 MD |
227 | break; |
228 | case LTTNG_EVENT_CONTEXT_PPID: | |
b8e2fb80 | 229 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PPID; |
9197c5c4 MD |
230 | break; |
231 | case LTTNG_EVENT_CONTEXT_VPPID: | |
b8e2fb80 | 232 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VPPID; |
9197c5c4 | 233 | break; |
54773d68 | 234 | case LTTNG_EVENT_CONTEXT_HOSTNAME: |
b8e2fb80 | 235 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_HOSTNAME; |
54773d68 | 236 | break; |
aa3514e9 MD |
237 | case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER: |
238 | case LTTNG_EVENT_CONTEXT_PERF_COUNTER: | |
b8e2fb80 | 239 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PERF_CPU_COUNTER; |
aa3514e9 | 240 | break; |
1ae5e83e | 241 | case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE: |
b8e2fb80 | 242 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_INTERRUPTIBLE; |
1ae5e83e JD |
243 | break; |
244 | case LTTNG_EVENT_CONTEXT_PREEMPTIBLE: | |
b8e2fb80 | 245 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PREEMPTIBLE; |
1ae5e83e JD |
246 | break; |
247 | case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE: | |
b8e2fb80 | 248 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_NEED_RESCHEDULE; |
1ae5e83e JD |
249 | break; |
250 | case LTTNG_EVENT_CONTEXT_MIGRATABLE: | |
b8e2fb80 | 251 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_MIGRATABLE; |
1ae5e83e | 252 | break; |
373148e9 | 253 | case LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL: |
b8e2fb80 | 254 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_KERNEL; |
373148e9 FG |
255 | break; |
256 | case LTTNG_EVENT_CONTEXT_CALLSTACK_USER: | |
b8e2fb80 | 257 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_USER; |
373148e9 | 258 | break; |
40e14884 | 259 | case LTTNG_EVENT_CONTEXT_CGROUP_NS: |
b8e2fb80 | 260 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_CGROUP_NS; |
40e14884 MJ |
261 | break; |
262 | case LTTNG_EVENT_CONTEXT_IPC_NS: | |
b8e2fb80 | 263 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_IPC_NS; |
40e14884 MJ |
264 | break; |
265 | case LTTNG_EVENT_CONTEXT_MNT_NS: | |
b8e2fb80 | 266 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_MNT_NS; |
40e14884 MJ |
267 | break; |
268 | case LTTNG_EVENT_CONTEXT_NET_NS: | |
b8e2fb80 | 269 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_NET_NS; |
40e14884 MJ |
270 | break; |
271 | case LTTNG_EVENT_CONTEXT_PID_NS: | |
b8e2fb80 | 272 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_PID_NS; |
40e14884 | 273 | break; |
d37ac3cd | 274 | case LTTNG_EVENT_CONTEXT_TIME_NS: |
b8e2fb80 | 275 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_TIME_NS; |
d37ac3cd | 276 | break; |
40e14884 | 277 | case LTTNG_EVENT_CONTEXT_USER_NS: |
b8e2fb80 | 278 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_USER_NS; |
40e14884 MJ |
279 | break; |
280 | case LTTNG_EVENT_CONTEXT_UTS_NS: | |
b8e2fb80 | 281 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_UTS_NS; |
40e14884 | 282 | break; |
499cbfa1 | 283 | case LTTNG_EVENT_CONTEXT_UID: |
b8e2fb80 | 284 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_UID; |
499cbfa1 MJ |
285 | break; |
286 | case LTTNG_EVENT_CONTEXT_EUID: | |
b8e2fb80 | 287 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_EUID; |
499cbfa1 MJ |
288 | break; |
289 | case LTTNG_EVENT_CONTEXT_SUID: | |
b8e2fb80 | 290 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_SUID; |
499cbfa1 MJ |
291 | break; |
292 | case LTTNG_EVENT_CONTEXT_GID: | |
b8e2fb80 | 293 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_GID; |
499cbfa1 MJ |
294 | break; |
295 | case LTTNG_EVENT_CONTEXT_EGID: | |
b8e2fb80 | 296 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_EGID; |
499cbfa1 MJ |
297 | break; |
298 | case LTTNG_EVENT_CONTEXT_SGID: | |
b8e2fb80 | 299 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_SGID; |
499cbfa1 MJ |
300 | break; |
301 | case LTTNG_EVENT_CONTEXT_VUID: | |
b8e2fb80 | 302 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VUID; |
499cbfa1 MJ |
303 | break; |
304 | case LTTNG_EVENT_CONTEXT_VEUID: | |
b8e2fb80 | 305 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VEUID; |
499cbfa1 MJ |
306 | break; |
307 | case LTTNG_EVENT_CONTEXT_VSUID: | |
b8e2fb80 | 308 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VSUID; |
499cbfa1 MJ |
309 | break; |
310 | case LTTNG_EVENT_CONTEXT_VGID: | |
b8e2fb80 | 311 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VGID; |
499cbfa1 MJ |
312 | break; |
313 | case LTTNG_EVENT_CONTEXT_VEGID: | |
b8e2fb80 | 314 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VEGID; |
499cbfa1 MJ |
315 | break; |
316 | case LTTNG_EVENT_CONTEXT_VSGID: | |
b8e2fb80 | 317 | kctx->ctx.ctx = LTTNG_KERNEL_ABI_CONTEXT_VSGID; |
499cbfa1 | 318 | break; |
9197c5c4 | 319 | default: |
fc7324e8 DG |
320 | ret = LTTNG_ERR_KERN_CONTEXT_FAIL; |
321 | goto error; | |
9197c5c4 MD |
322 | } |
323 | ||
645328ae DG |
324 | kctx->ctx.u.perf_counter.type = ctx->u.perf_counter.type; |
325 | kctx->ctx.u.perf_counter.config = ctx->u.perf_counter.config; | |
28ab034a | 326 | strncpy(kctx->ctx.u.perf_counter.name, ctx->u.perf_counter.name, LTTNG_SYMBOL_NAME_LEN); |
645328ae | 327 | kctx->ctx.u.perf_counter.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
b579acd9 | 328 | |
9d035200 | 329 | if (*channel_name == '\0') { |
645328ae | 330 | ret = add_kctx_all_channels(ksession, kctx); |
df3c77c8 | 331 | /* Ownership of kctx is transferred to the callee. */ |
cd9adb8b | 332 | kctx = nullptr; |
f73fabfd | 333 | if (ret != LTTNG_OK) { |
b579acd9 DG |
334 | goto error; |
335 | } | |
336 | } else { | |
337 | /* Get kernel channel */ | |
62499ad6 | 338 | kchan = trace_kernel_get_channel_by_name(channel_name, ksession); |
cd9adb8b | 339 | if (kchan == nullptr) { |
f73fabfd | 340 | ret = LTTNG_ERR_KERN_CHAN_NOT_FOUND; |
b579acd9 DG |
341 | goto error; |
342 | } | |
343 | ||
645328ae | 344 | ret = add_kctx_to_channel(kctx, kchan); |
df3c77c8 | 345 | /* Ownership of kctx is transferred to the callee. */ |
cd9adb8b | 346 | kctx = nullptr; |
f73fabfd | 347 | if (ret != LTTNG_OK) { |
b579acd9 DG |
348 | goto error; |
349 | } | |
350 | } | |
351 | ||
df3c77c8 | 352 | ret = LTTNG_OK; |
b579acd9 DG |
353 | |
354 | error: | |
fc7324e8 DG |
355 | if (kctx) { |
356 | trace_kernel_destroy_context(kctx); | |
357 | } | |
b579acd9 DG |
358 | return ret; |
359 | } | |
2bdd86d4 MD |
360 | |
361 | /* | |
55cc08a6 | 362 | * Add UST context to tracer. |
2bdd86d4 | 363 | */ |
4ce7709b | 364 | int context_ust_add(struct ltt_ust_session *usess, |
28ab034a JG |
365 | enum lttng_domain_type domain, |
366 | const struct lttng_event_context *ctx, | |
367 | const char *channel_name) | |
2bdd86d4 | 368 | { |
601d5acf | 369 | int ret = LTTNG_OK; |
442359c0 | 370 | struct lttng_ht_iter iter; |
bec39940 | 371 | struct lttng_ht *chan_ht; |
cd9adb8b | 372 | struct ltt_ust_channel *uchan = nullptr; |
2bdd86d4 | 373 | |
a0377dfe FD |
374 | LTTNG_ASSERT(usess); |
375 | LTTNG_ASSERT(ctx); | |
376 | LTTNG_ASSERT(channel_name); | |
0525e9ae | 377 | |
56047f5a | 378 | lttng::urcu::read_lock_guard read_lock; |
2223c96f | 379 | |
f5501dad | 380 | chan_ht = usess->domain_global.channels; |
2bdd86d4 | 381 | |
55cc08a6 | 382 | /* Get UST channel if defined */ |
9f9ee9c9 | 383 | if (channel_name[0] != '\0') { |
55cc08a6 | 384 | uchan = trace_ust_find_channel_by_name(chan_ht, channel_name); |
cd9adb8b | 385 | if (uchan == nullptr) { |
f73fabfd | 386 | ret = LTTNG_ERR_UST_CHAN_NOT_FOUND; |
2bdd86d4 MD |
387 | goto error; |
388 | } | |
55cc08a6 DG |
389 | } |
390 | ||
601d5acf DG |
391 | if (uchan) { |
392 | /* Add ctx to channel */ | |
6b79ed20 | 393 | ret = add_uctx_to_channel(usess, domain, uchan, ctx); |
601d5acf DG |
394 | } else { |
395 | /* Add ctx all events, all channels */ | |
28ab034a | 396 | cds_lfht_for_each_entry (chan_ht->ht, &iter.iter, uchan, node.node) { |
6b79ed20 | 397 | ret = add_uctx_to_channel(usess, domain, uchan, ctx); |
7682f304 | 398 | if (ret) { |
28ab034a | 399 | ERR("Failed to add context to channel %s", uchan->name); |
55cc08a6 DG |
400 | continue; |
401 | } | |
2bdd86d4 | 402 | } |
55cc08a6 | 403 | } |
2bdd86d4 | 404 | |
55cc08a6 | 405 | switch (ret) { |
7682f304 | 406 | case LTTNG_ERR_UST_CONTEXT_EXIST: |
727d5404 | 407 | break; |
55cc08a6 | 408 | case -ENOMEM: |
7682f304 | 409 | case -LTTNG_ERR_NOMEM: |
f73fabfd | 410 | ret = LTTNG_ERR_FATAL; |
727d5404 DG |
411 | break; |
412 | case -EINVAL: | |
f73fabfd | 413 | ret = LTTNG_ERR_UST_CONTEXT_INVAL; |
727d5404 DG |
414 | break; |
415 | case -ENOSYS: | |
f73fabfd | 416 | ret = LTTNG_ERR_UNKNOWN_DOMAIN; |
727d5404 DG |
417 | break; |
418 | default: | |
7682f304 JG |
419 | if (ret != 0 && ret != LTTNG_OK) { |
420 | ret = ret > 0 ? ret : LTTNG_ERR_UNK; | |
421 | } else { | |
422 | ret = LTTNG_OK; | |
423 | } | |
727d5404 | 424 | break; |
2bdd86d4 MD |
425 | } |
426 | ||
2bdd86d4 MD |
427 | error: |
428 | return ret; | |
429 | } |