diff options
Diffstat (limited to 'src/call.c')
| -rw-r--r-- | src/call.c | 28 |
1 files changed, 27 insertions, 1 deletions
@@ -1217,7 +1217,7 @@ static bool have_common_audio_codecs(const struct call *call) if (!sc) return false; - ac = sc->data; + ac = sc->data; /* note: this will exclude telephone-event */ return ac != NULL; } @@ -1247,6 +1247,8 @@ int call_accept(struct call *call, struct sipsess_sock *sess_sock, } if (got_offer) { + struct sdp_media *m; + const struct sa *raddr; err = sdp_decode(call->sdp, msg->mb, true); if (err) @@ -1254,6 +1256,30 @@ int call_accept(struct call *call, struct sipsess_sock *sess_sock, call->got_offer = true; + /* + * Each media description in the SDP answer MUST + * use the same network type as the corresponding + * media description in the offer. + * + * See RFC 6157 + */ + m = stream_sdpmedia(audio_strm(call->audio)); + raddr = sdp_media_raddr(m); + + if (sa_af(raddr) != call->af) { + info("call: incompatible address-family" + " (local=%s, remote=%s)\n", + net_af2name(call->af), + net_af2name(sa_af(raddr))); + + sip_treply(NULL, uag_sip(), msg, + 488, "Not Acceptable Here"); + + call_event_handler(call, CALL_EVENT_CLOSED, + "Wrong address family"); + return 0; + } + /* Check if we have any common audio codecs, after * the SDP offer has been parsed */ |