X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.c;h=58506b2b225e5e0e306d9fad8682013e52a0723d;hp=30f7d49babce04dd13abfef85234db060e4e7fba;hb=1371fc1228461eb532118280e67ab3e9de015757;hpb=7ffc31a26846c17bbb31a86ece6471f769805633

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 30f7d49ba..58506b2b2 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -18,6 +18,7 @@
 #define _GNU_SOURCE
 #define _LGPL_SOURCE
 #include <assert.h>
+#include <string.h>
 #include <inttypes.h>
 #include <urcu/list.h>
 #include <urcu/uatomic.h>
@@ -220,7 +221,9 @@ static int list_lttng_agent_events(struct agent *agt,
 
 	DBG3("Listing agent events");
 
+	rcu_read_lock();
 	nb_event = lttng_ht_get_count(agt->events);
+	rcu_read_unlock();
 	if (nb_event == 0) {
 		ret = nb_event;
 		goto error;
@@ -937,11 +940,21 @@ int cmd_enable_channel(struct ltt_session *session,
 	int ret;
 	struct ltt_ust_session *usess = session->ust_session;
 	struct lttng_ht *chan_ht;
+	size_t len;
 
 	assert(session);
 	assert(attr);
 	assert(domain);
 
+	len = strnlen(attr->name, sizeof(attr->name));
+
+	/* Validate channel name */
+	if (attr->name[0] == '.' ||
+		memchr(attr->name, '/', len) != NULL) {
+		ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+		goto end;
+	}
+
 	DBG("Enabling channel %s for session %s", attr->name, session->name);
 
 	rcu_read_lock();
@@ -1022,6 +1035,7 @@ int cmd_enable_channel(struct ltt_session *session,
 
 error:
 	rcu_read_unlock();
+end:
 	return ret;
 }
 
@@ -1040,7 +1054,8 @@ int cmd_disable_event(struct ltt_session *session, int domain,
 
 	event_name = event->name;
 
-	if (event->loglevel_type || event->loglevel || event->enabled
+	/* Error out on unhandled search criteria */
+	if (event->loglevel_type || event->loglevel != -1 || event->enabled
 			|| event->pid || event->filter || event->exclusion) {
 		return LTTNG_ERR_UNK;
 	}
@@ -2004,13 +2019,12 @@ error:
 /*
  * Command LTTNG_SET_CONSUMER_URI processed by the client thread.
  */
-int cmd_set_consumer_uri(int domain, struct ltt_session *session,
-		size_t nb_uri, struct lttng_uri *uris)
+int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
+		struct lttng_uri *uris)
 {
 	int ret, i;
 	struct ltt_kernel_session *ksess = session->kernel_session;
 	struct ltt_ust_session *usess = session->ust_session;
-	struct consumer_output *consumer = NULL;
 
 	assert(session);
 	assert(uris);
@@ -2022,41 +2036,41 @@ int cmd_set_consumer_uri(int domain, struct ltt_session *session,
 		goto error;
 	}
 
-	/*
-	 * This case switch makes sure the domain session has a temporary consumer
-	 * so the URL can be set.
-	 */
-	switch (domain) {
-	case 0:
-		/* Code flow error. A session MUST always have a consumer object */
-		assert(session->consumer);
-		/*
-		 * The URL will be added to the tracing session consumer instead of a
-		 * specific domain consumer.
-		 */
-		consumer = session->consumer;
-		break;
-	case LTTNG_DOMAIN_KERNEL:
-		/* Code flow error if we don't have a kernel session here. */
-		assert(ksess);
-		assert(ksess->consumer);
-		consumer = ksess->consumer;
-		break;
-	case LTTNG_DOMAIN_UST:
-		/* Code flow error if we don't have a kernel session here. */
-		assert(usess);
-		assert(usess->consumer);
-		consumer = usess->consumer;
-		break;
-	}
-
+	/* Set the "global" consumer URIs */
 	for (i = 0; i < nb_uri; i++) {
-		ret = add_uri_to_consumer(consumer, &uris[i], domain, session->name);
+		ret = add_uri_to_consumer(session->consumer,
+				&uris[i], 0, session->name);
 		if (ret != LTTNG_OK) {
 			goto error;
 		}
 	}
 
+	/* Set UST session URIs */
+	if (session->ust_session) {
+		for (i = 0; i < nb_uri; i++) {
+			ret = add_uri_to_consumer(
+					session->ust_session->consumer,
+					&uris[i], LTTNG_DOMAIN_UST,
+					session->name);
+			if (ret != LTTNG_OK) {
+				goto error;
+			}
+		}
+	}
+
+	/* Set kernel session URIs */
+	if (session->kernel_session) {
+		for (i = 0; i < nb_uri; i++) {
+			ret = add_uri_to_consumer(
+					session->kernel_session->consumer,
+					&uris[i], LTTNG_DOMAIN_KERNEL,
+					session->name);
+			if (ret != LTTNG_OK) {
+				goto error;
+			}
+		}
+	}
+
 	/*
 	 * Make sure to set the session in output mode after we set URI since a
 	 * session can be created without URL (thus flagged in no output mode).
@@ -2064,7 +2078,9 @@ int cmd_set_consumer_uri(int domain, struct ltt_session *session,
 	session->output_traces = 1;
 	if (ksess) {
 		ksess->output_traces = 1;
-	} else if (usess) {
+	}
+
+	if (usess) {
 		usess->output_traces = 1;
 	}
 
@@ -2126,7 +2142,7 @@ int cmd_create_session_uri(char *name, struct lttng_uri *uris,
 	}
 
 	if (uris) {
-		ret = cmd_set_consumer_uri(0, session, nb_uri, uris);
+		ret = cmd_set_consumer_uri(session, nb_uri, uris);
 		if (ret != LTTNG_OK) {
 			goto consumer_error;
 		}
@@ -2550,10 +2566,12 @@ ssize_t cmd_list_events(int domain, struct ltt_session *session,
 			struct lttng_ht_iter iter;
 			struct agent *agt;
 
+			rcu_read_lock();
 			cds_lfht_for_each_entry(session->ust_session->agents->ht,
 					&iter.iter, agt, node.node) {
 				nb_event = list_lttng_agent_events(agt, events);
 			}
+			rcu_read_unlock();
 		}
 		break;
 	default:
@@ -2961,11 +2979,13 @@ static int record_kernel_snapshot(struct ltt_kernel_session *ksess,
 	}
 
 	ret = LTTNG_OK;
+	goto end;
 
 error_snapshot:
 	/* Clean up copied sockets so this output can use some other later on. */
 	consumer_destroy_output_sockets(output->consumer);
 error:
+end:
 	return ret;
 }