gtphub: fix Echo behavior: respond directly.

Up to now I used the Echo as a test for sequence nr mappings. But Echos
should be handled differently: they are scoped on the link and an Echo
response should be sent right back to the requester.

Sponsored-by: On-Waves ehi

1 files changed, 4 insertions, 0 deletions

diff --git a/openbsc/include/openbsc/gtphub.h b/openbsc/include/openbsc/gtphub.h
index 05eee851e..514b1a375 100644
--- a/openbsc/include/openbsc/gtphub.h
+++ b/openbsc/include/openbsc/gtphub.h
@@ -396,6 +396,8 @@ struct gtphub {
 	struct osmo_timer_list gc_timer;
 	struct expiry expire_seq_maps;
 	struct expiry expire_tei_maps;
+
+	uint16_t restart_counter;
 };
 
 struct gtp_packet_desc;
@@ -425,6 +427,7 @@ int gtphub_from_sgsns_handle_buf(struct gtphub *hub,
 				 uint8_t *buf,
 				 size_t received,
 				 time_t now,
+				 uint8_t **reply_buf,
 				 struct osmo_fd **to_ofd,
 				 struct osmo_sockaddr *to_addr);
 
@@ -434,6 +437,7 @@ int gtphub_from_ggsns_handle_buf(struct gtphub *hub,
 				 uint8_t *buf,
 				 size_t received,
 				 time_t now,
+				 uint8_t **reply_buf,
 				 struct osmo_fd **to_ofd,
 				 struct osmo_sockaddr *to_addr);