Add check to tch_map(), if RTP sockets exist
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index df93433..43e83c7 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -1575,6 +1575,17 @@
case GSM_BTS_TYPE_NANOBTS:
case GSM_BTS_TYPE_OSMO_SYSMO:
if (!ipacc_rtp_direct) {
+ if (!lchan->abis_ip.rtp_socket) {
+ LOGP(DHO, LOGL_ERROR, "no RTP socket for "
+ "lchan\n");
+ return -EIO;
+ }
+ if (!remote_lchan->abis_ip.rtp_socket) {
+ LOGP(DHO, LOGL_ERROR, "no RTP socket for "
+ "remote_lchan\n");
+ return -EIO;
+ }
+
/* connect the TCH's to our RTP proxy */
rc = rsl_ipacc_mdcx_to_rtpsock(lchan);
if (rc < 0)