Fix: relayd vs consumerd compatibility

[lttng-tools.git] / src / common / kernel-consumer / kernel-consumer.c

diff --git a/src/common/kernel-consumer/kernel-consumer.c b/src/common/kernel-consumer/kernel-consumer.c
index 65dcce40b34f2b07e892c7f7a1298b9709bbd180..d03ff701533fdab938082a1d551efdeff4140428 100644 (file)
--- a/src/common/kernel-consumer/kernel-consumer.c
+++ b/src/common/kernel-consumer/kernel-consumer.c
@@ -1085,15 +1085,27 @@ static int get_index_values(struct ctf_packet_index *index, int infd)
 
        ret = kernctl_get_instance_id(infd, &index->stream_instance_id);
        if (ret < 0) {
-               PERROR("kernctl_get_instance_id");
-               goto error;
+               if (ret == -ENOTTY) {
+                       /* Command not implemented by lttng-modules. */
+                       index->stream_instance_id = -1ULL;
+                       ret = 0;
+               } else {
+                       PERROR("kernctl_get_instance_id");
+                       goto error;
+               }
        }
        index->stream_instance_id = htobe64(index->stream_instance_id);
 
        ret = kernctl_get_sequence_number(infd, &index->packet_seq_num);
        if (ret < 0) {
-               PERROR("kernctl_get_sequence_number");
-               goto error;
+               if (ret == -ENOTTY) {
+                       /* Command not implemented by lttng-modules. */
+                       index->packet_seq_num = -1ULL;
+                       ret = 0;
+               } else {
+                       PERROR("kernctl_get_sequence_number");
+                       goto error;
+               }
        }
        index->packet_seq_num = htobe64(index->packet_seq_num);
 
@@ -1145,8 +1157,14 @@ int update_stream_stats(struct lttng_consumer_stream *stream)
 
        ret = kernctl_get_sequence_number(stream->wait_fd, &seq);
        if (ret < 0) {
-               PERROR("kernctl_get_sequence_number");
-               goto end;
+               if (ret == -ENOTTY) {
+                       /* Command not implemented by lttng-modules. */
+                       seq = -1ULL;
+                       ret = 0;
+               } else {
+                       PERROR("kernctl_get_sequence_number");
+                       goto end;
+               }
        }
 
        /*
@@ -1205,6 +1223,14 @@ int metadata_stream_check_version(int infd, struct lttng_consumer_stream *stream
 
        ret = kernctl_get_metadata_version(infd, &cur_version);
        if (ret < 0) {
+               if (ret == -ENOTTY) {
+                       /*
+                        * LTTng-modules does not implement this
+                        * command.
+                        */
+                       ret = 0;
+                       goto end;
+               }
                ERR("Failed to get the metadata version");
                goto end;
        }
@@ -1449,14 +1475,17 @@ int lttng_kconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
                stream->tracefile_size_current = 0;
 
                if (!stream->metadata_flag) {
-                       ret = index_create_file(stream->chan->pathname,
+                       struct lttng_index_file *index_file;
+
+                       index_file = lttng_index_file_create(stream->chan->pathname,
                                        stream->name, stream->uid, stream->gid,
                                        stream->chan->tracefile_size,
-                                       stream->tracefile_count_current);
-                       if (ret < 0) {
+                                       stream->tracefile_count_current,
+                                       CTF_INDEX_MAJOR, CTF_INDEX_MINOR);
+                       if (!index_file) {
                                goto error;
                        }
-                       stream->index_fd = ret;
+                       stream->index_file = index_file;
                }
        }