Add kernel and UST time namespace context

[lttng-tools.git] / src / bin / lttng-sessiond / context.c

diff --git a/src/bin/lttng-sessiond/context.c b/src/bin/lttng-sessiond/context.c
index 6cf301dcd04488b1a9f02ce79584e5cf0c445dea..621c0b9fb53cfa88a56abc5b6737b52aee8eaa56 100644 (file)
--- a/src/bin/lttng-sessiond/context.c
+++ b/src/bin/lttng-sessiond/context.c
@@ -1,19 +1,9 @@
 /*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #define _LGPL_SOURCE
@@ -107,7 +97,8 @@ error:
  */
 static int add_uctx_to_channel(struct ltt_ust_session *usess,
                enum lttng_domain_type domain,
-               struct ltt_ust_channel *uchan, struct lttng_event_context *ctx)
+               struct ltt_ust_channel *uchan,
+               const struct lttng_event_context *ctx)
 {
        int ret;
        struct ltt_ust_context *uctx = NULL;
@@ -169,18 +160,19 @@ static int add_uctx_to_channel(struct ltt_ust_session *usess,
                goto error;
        }
 
-       ret = ust_app_add_ctx_channel_glb(usess, uchan, uctx);
-       if (ret < 0) {
-               goto error;
-       }
-
-       rcu_read_lock();
-
        /* Add ltt UST context node to ltt UST channel */
        lttng_ht_add_ulong(uchan->ctx, &uctx->node);
-       rcu_read_unlock();
        cds_list_add_tail(&uctx->list, &uchan->ctx_list);
 
+       if (!usess->active) {
+               goto end;
+       }
+
+       ret = ust_app_add_ctx_channel_glb(usess, uchan, uctx);
+       if (ret < 0) {
+               goto error;
+       }
+end:
        DBG("Context UST %d added to channel %s", uctx->ctx.ctx, uchan->name);
 
        return 0;
@@ -195,7 +187,7 @@ duplicate:
  * Add kernel context to tracer.
  */
 int context_kernel_add(struct ltt_kernel_session *ksession,
-               struct lttng_event_context *ctx, char *channel_name)
+               const struct lttng_event_context *ctx, char *channel_name)
 {
        int ret;
        struct ltt_kernel_channel *kchan;
@@ -265,6 +257,66 @@ int context_kernel_add(struct ltt_kernel_session *ksession,
        case LTTNG_EVENT_CONTEXT_CALLSTACK_USER:
                kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_CALLSTACK_USER;
                break;
+       case LTTNG_EVENT_CONTEXT_CGROUP_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_CGROUP_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_IPC_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_IPC_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_MNT_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_MNT_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_NET_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_NET_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_PID_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_PID_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_TIME_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_TIME_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_USER_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_USER_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_UTS_NS:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_UTS_NS;
+               break;
+       case LTTNG_EVENT_CONTEXT_UID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_UID;
+               break;
+       case LTTNG_EVENT_CONTEXT_EUID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_EUID;
+               break;
+       case LTTNG_EVENT_CONTEXT_SUID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_SUID;
+               break;
+       case LTTNG_EVENT_CONTEXT_GID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_GID;
+               break;
+       case LTTNG_EVENT_CONTEXT_EGID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_EGID;
+               break;
+       case LTTNG_EVENT_CONTEXT_SGID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_SGID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VUID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VUID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VEUID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VEUID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VSUID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VSUID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VGID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VGID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VEGID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VEGID;
+               break;
+       case LTTNG_EVENT_CONTEXT_VSGID:
+               kctx->ctx.ctx = LTTNG_KERNEL_CONTEXT_VSGID;
+               break;
        default:
                ret = LTTNG_ERR_KERN_CONTEXT_FAIL;
                goto error;
@@ -312,7 +364,8 @@ error:
  * Add UST context to tracer.
  */
 int context_ust_add(struct ltt_ust_session *usess,
-               enum lttng_domain_type domain, struct lttng_event_context *ctx,
+               enum lttng_domain_type domain,
+               const struct lttng_event_context *ctx,
                char *channel_name)
 {
        int ret = LTTNG_OK;