X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fsession.c;h=de059aae203e2df17054f9bd1d415279e0bd23bf;hp=28e75f1dc1804c3f3e3740bca3a7a4e3e9fd9548;hb=590f0324d6dfd382f79229a7934fa8b5b661641f;hpb=62bad3bf0aaade7f80ba4e536e1b9e734ec2e051

diff --git a/src/bin/lttng-relayd/session.c b/src/bin/lttng-relayd/session.c
index 28e75f1dc..de059aae2 100644
--- a/src/bin/lttng-relayd/session.c
+++ b/src/bin/lttng-relayd/session.c
@@ -19,14 +19,15 @@
 
 #define _LGPL_SOURCE
 #include <common/common.h>
+#include <common/utils.h>
 #include <common/compat/uuid.h>
 #include <urcu/rculist.h>
 
-#include "lttng-relayd.h"
 #include "ctf-trace.h"
+#include "lttng-relayd.h"
 #include "session.h"
-#include "stream.h"
 #include "sessiond-trace-chunks.h"
+#include "stream.h"
 
 /* Global session id used in the session creation. */
 static uint64_t last_relay_session_id;
@@ -38,8 +39,20 @@ static int session_set_anonymous_chunk(struct relay_session *session)
 	struct lttng_trace_chunk *chunk = NULL;
 	enum lttng_trace_chunk_status status;
 	struct lttng_directory_handle output_directory;
+	const char *base_path = opt_output_path;
+
+	if (base_path == NULL) {
+		/* No output path defined */
+		base_path = utils_get_home_dir();
+		if (base_path == NULL) {
+			ERR("Home path not found.\n \
+					Please specify an output path using -o, --output PATH");
+			ret = -1;
+			goto end;
+		}
+	}
 
-	ret = lttng_directory_handle_init(&output_directory, opt_output_path);
+	ret = lttng_directory_handle_init(&output_directory, base_path);
 	if (ret) {
 		goto end;
 	}
@@ -74,7 +87,7 @@ end:
  * Return allocated session or else NULL.
  */
 struct relay_session *session_create(const char *session_name,
-		const char *hostname,
+		const char *hostname, const char *base_path,
 		uint32_t live_timer,
 		bool snapshot,
 		const lttng_uuid sessiond_uuid,
@@ -85,7 +98,23 @@ struct relay_session *session_create(const char *session_name,
 		uint32_t minor)
 {
 	int ret;
-	struct relay_session *session;
+	struct relay_session *session = NULL;
+
+	if (session_name && strstr(session_name, ".")) {
+		ERR("Illegal character in session name: \"%s\"",
+				session_name);
+		goto error;
+	}
+	if (base_path && strstr(base_path, "../")) {
+		ERR("Invalid session base path walks up the path hierarchy: \"%s\"",
+				base_path);
+		goto error;
+	}
+	if (hostname && strstr(hostname, ".")) {
+		ERR("Invalid character in hostname: \"%s\"",
+				hostname);
+		goto error;
+	}
 
 	session = zmalloc(sizeof(*session));
 	if (!session) {
@@ -102,6 +131,12 @@ struct relay_session *session_create(const char *session_name,
 		WARN("Hostname exceeds maximal allowed length");
 		goto error;
 	}
+	if (lttng_strncpy(session->base_path, base_path,
+			sizeof(session->base_path))) {
+		WARN("Base path exceeds maximal allowed length");
+		goto error;
+	}
+
 	session->ctf_traces_ht = lttng_ht_new(0, LTTNG_HT_TYPE_STRING);
 	if (!session->ctf_traces_ht) {
 		goto error;