add gsm0808_create_handover_request_ack2 to add AoIP RTP addr
osmo-bsc so far omits the AoIP Transport Layer Address from its Handover
Request Acknowledge message, which breaks inter-BSC Handover for AoIP.
Allow fixing that.
One quirk I really don't like about this: I would prefer to directly use struct
sockaddr_storage as a member of the struct gsm0808_handover_request_ack. Even
though struct sockaddr_storage appears in various function signatures, the
gsm0808.c actually also gets built on embedded systems that lack arpa/inet.h
(for me indicated by the ARM build job on jenkins). Compiling gsm0808.c works
only because the actual coding of struct sockaddr_storage is implemented in
gsm0808_util.c, which (apparently) does not get built on embedded and hence,
even though there are undefined references to e.g.
gsm0808_enc_aoip_trasp_addr() it works.
Related: I4a5acdb2d4a0b947cc0c62067a67be88a3d467ff (osmo-bsc)
Change-Id: Ia71542ea37d4fd2c9fb9b40357db7aeb111ec576
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 9c5123e..adfa096 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -187,6 +187,7 @@
gsm0808_create_handover_required_reject;
gsm0808_create_handover_request;
gsm0808_create_handover_request_ack;
+gsm0808_create_handover_request_ack2;
gsm0808_create_handover_command;
gsm0808_create_handover_detect;
gsm0808_create_handover_succeeded;