&iter.iter, uchan, node.node) {
uint64_t discarded_events = 0, lost_packets = 0;
- strncpy(channels[i].name, uchan->name, LTTNG_SYMBOL_NAME_LEN);
+ if (lttng_strncpy(channels[i].name, uchan->name,
+ LTTNG_SYMBOL_NAME_LEN)) {
+ break;
+ }
channels[i].attr.overwrite = uchan->attr.overwrite;
channels[i].attr.subbuf_size = uchan->attr.subbuf_size;
channels[i].attr.num_subbuf = uchan->attr.num_subbuf;
DBG2("Setting trace directory path from URI to %s", uri->dst.path);
memset(consumer->dst.trace_path, 0,
sizeof(consumer->dst.trace_path));
- strncpy(consumer->dst.trace_path, uri->dst.path,
- sizeof(consumer->dst.trace_path));
+ /* Explicit length checks for strcpy and strcat. */
+ if (strlen(uri->dst.path) + strlen(default_trace_dir)
+ >= sizeof(consumer->dst.trace_path)) {
+ ret = LTTNG_ERR_FATAL;
+ goto error;
+ }
+ strcpy(consumer->dst.trace_path, uri->dst.path);
/* Append default trace dir */
- strncat(consumer->dst.trace_path, default_trace_dir,
- sizeof(consumer->dst.trace_path) -
- strlen(consumer->dst.trace_path) - 1);
+ strcat(consumer->dst.trace_path, default_trace_dir);
/* Flag consumer as local. */
consumer->type = CONSUMER_DST_LOCAL;
break;
int wpipe, bool internal_event)
{
int ret, channel_created = 0;
- struct lttng_channel *attr;
+ struct lttng_channel *attr = NULL;
assert(session);
assert(event);
ret = LTTNG_ERR_FATAL;
goto error;
}
- strncpy(attr->name, channel_name, sizeof(attr->name));
+ if (lttng_strncpy(attr->name, channel_name,
+ sizeof(attr->name))) {
+ ret = LTTNG_ERR_INVALID;
+ goto error;
+ }
ret = cmd_enable_channel(session, domain, attr, wpipe);
if (ret != LTTNG_OK) {
- free(attr);
goto error;
}
- free(attr);
-
channel_created = 1;
}
ret = LTTNG_ERR_FATAL;
goto error;
}
- strncpy(attr->name, channel_name, sizeof(attr->name));
+ if (lttng_strncpy(attr->name, channel_name,
+ sizeof(attr->name))) {
+ ret = LTTNG_ERR_INVALID;
+ goto error;
+ }
ret = cmd_enable_channel(session, domain, attr, wpipe);
if (ret != LTTNG_OK) {
- free(attr);
goto error;
}
- free(attr);
/* Get the newly created channel reference back */
uchan = trace_ust_find_channel_by_name(
free(filter_expression);
free(filter);
free(exclusion);
+ free(attr);
rcu_read_unlock();
return ret;
}
if (ksession && ksession->active) {
DBG("Stop kernel tracing");
- /* Flush metadata if exist */
+ ret = kernel_stop_session(ksession);
+ if (ret < 0) {
+ ret = LTTNG_ERR_KERN_STOP_FAIL;
+ goto error;
+ }
+
+ kernel_wait_quiescent(kernel_tracer_fd);
+
+ /* Flush metadata after stopping (if exists) */
if (ksession->metadata_stream_fd >= 0) {
ret = kernel_metadata_flush_buffer(ksession->metadata_stream_fd);
if (ret < 0) {
}
}
- /* Flush all buffers before stopping */
+ /* Flush all buffers after stopping */
cds_list_for_each_entry(kchan, &ksession->channel_list.head, list) {
ret = kernel_flush_buffer(kchan);
if (ret < 0) {
}
}
- ret = kernel_stop_session(ksession);
- if (ret < 0) {
- ret = LTTNG_ERR_KERN_STOP_FAIL;
- goto error;
- }
-
- kernel_wait_quiescent(kernel_tracer_fd);
-
ksession->active = 0;
}
assert(output->consumer);
list[idx].id = output->id;
list[idx].max_size = output->max_size;
- strncpy(list[idx].name, output->name, sizeof(list[idx].name));
+ if (lttng_strncpy(list[idx].name, output->name,
+ sizeof(list[idx].name))) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
if (output->consumer->type == CONSUMER_DST_LOCAL) {
- strncpy(list[idx].ctrl_url, output->consumer->dst.trace_path,
- sizeof(list[idx].ctrl_url));
+ if (lttng_strncpy(list[idx].ctrl_url,
+ output->consumer->dst.trace_path,
+ sizeof(list[idx].ctrl_url))) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
} else {
/* Control URI. */
ret = uri_to_str_url(&output->consumer->dst.net.control,
/* Use temporary name. */
if (*output->name != '\0') {
- strncpy(tmp_output.name, output->name,
- sizeof(tmp_output.name));
+ if (lttng_strncpy(tmp_output.name, output->name,
+ sizeof(tmp_output.name))) {
+ ret = LTTNG_ERR_INVALID;
+ rcu_read_unlock();
+ goto error;
+ }
}
tmp_output.nb_snapshot = session->snapshot.nb_snapshot;