Metadata: add env fields to ease life of viewer

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

diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
index 59d8a8fc49a96edf8327e85ea033879555e87487..faa51c75937ebc1f5ddabd820f0feca05dbebf6a 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.c
+++ b/src/bin/lttng-sessiond/ust-app.c
@@ -1993,7 +1993,7 @@ static int setup_buffer_reg_pid(struct ust_app_session *ua_sess,
                        app->byte_order, app->version.major,
                        app->version.minor, reg_pid->root_shm_path,
                        reg_pid->shm_path,
-                       ua_sess->euid, ua_sess->egid);
+                       ua_sess->euid, ua_sess->egid, ua_sess->tracing_id, app->uid);
        if (ret < 0) {
                /*
                 * reg_pid->registry->reg.ust is NULL upon error, so we need to
@@ -2060,7 +2060,8 @@ static int setup_buffer_reg_uid(struct ltt_ust_session *usess,
                        app->uint64_t_alignment, app->long_alignment,
                        app->byte_order, app->version.major,
                        app->version.minor, reg_uid->root_shm_path,
-                       reg_uid->shm_path, usess->uid, usess->gid);
+                       reg_uid->shm_path, usess->uid, usess->gid,
+                       ua_sess->tracing_id, app->uid);
        if (ret < 0) {
                /*
                 * reg_uid->registry->reg.ust is NULL upon error, so we need to
@@ -4402,24 +4403,18 @@ int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
        /* Create directories if consumer is LOCAL and has a path defined. */
        if (usess->consumer->type == CONSUMER_DST_LOCAL &&
                        usess->consumer->dst.session_root_path[0] != '\0') {
-               char *tmp_path;
+               char tmp_path[LTTNG_PATH_MAX];
 
-               tmp_path = zmalloc(LTTNG_PATH_MAX);
-               if (!tmp_path) {
-                       ERR("Alloc tmp_path");
-                       goto error_unlock;
-               }
-               ret = snprintf(tmp_path, LTTNG_PATH_MAX, "%s%s%s",
+               ret = snprintf(tmp_path, sizeof(tmp_path), "%s/%s%s",
                                usess->consumer->dst.session_root_path,
                                usess->consumer->chunk_path,
-                               usess->consumer->subdir);
-               if (ret >= LTTNG_PATH_MAX) {
-                       ERR("Local destination path exceeds the maximal allowed length of %i bytes (needs %i bytes) with path = \"%s%s%s\"",
-                                       LTTNG_PATH_MAX, ret,
+                               usess->consumer->domain_subdir);
+               if (ret >= sizeof(tmp_path)) {
+                       ERR("Local destination path exceeds the maximal allowed length of %zu bytes (needs %i bytes) with path = \"%s%s%s\"",
+                                       sizeof(tmp_path), ret,
                                        usess->consumer->dst.session_root_path,
                                        usess->consumer->chunk_path,
-                                       usess->consumer->subdir);
-                       free(tmp_path);
+                                       usess->consumer->domain_subdir);
                        goto error_unlock;
                }
 
@@ -4427,7 +4422,6 @@ int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
                                tmp_path);
                ret = run_as_mkdir_recursive(tmp_path, S_IRWXU | S_IRWXG,
                                ua_sess->euid, ua_sess->egid);
-               free(tmp_path);
                if (ret < 0) {
                        if (errno != EEXIST) {
                                ERR("Trace directory creation error");
@@ -6343,7 +6337,7 @@ enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
                        ret = snprintf(pathname, sizeof(pathname),
                                        DEFAULT_UST_TRACE_DIR "/" DEFAULT_UST_TRACE_UID_PATH,
                                        reg->uid, reg->bits_per_long);
-                       if (ret < 0 || ret == sizeof(pathname)) {
+                       if (ret < 0 || ret >= sizeof(pathname)) {
                                PERROR("Failed to format rotation path");
                                cmd_ret = LTTNG_ERR_INVALID;
                                goto error;
@@ -6396,7 +6390,7 @@ enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
                        ret = snprintf(pathname, sizeof(pathname),
                                        DEFAULT_UST_TRACE_DIR "/%s",
                                        ua_sess->path);
-                       if (ret < 0 || ret == sizeof(pathname)) {
+                       if (ret < 0 || ret >= sizeof(pathname)) {
                                PERROR("Failed to format rotation path");
                                cmd_ret = LTTNG_ERR_INVALID;
                                goto error;