Hello Jenkins Builder,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/6258
to look at the new patch set (#2).
protocol: check requested connection mode
The connection mode setting (e.g. recvonly) is not checked on CRCX
and MDCX. This allows requests that set the connection mode to
sendrecv or sendonly without ever configuring the remote end of
the connection (half-open connection).
- reject sendrecv or sendonly on half open connections
See also TTCN3 Test:
MGCP_Test.TC_crcx_early_bidir_mode
Change-Id: I6ab01855d3b1faa36aebac357e7b97c563990678
Related: OS#2652
---
M src/libosmo-mgcp/mgcp_protocol.c
1 file changed, 22 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-mgw refs/changes/58/6258/2
diff --git a/src/libosmo-mgcp/mgcp_protocol.c b/src/libosmo-mgcp/mgcp_protocol.c
index 2977fdf..05aefc1 100644
--- a/src/libosmo-mgcp/mgcp_protocol.c
+++ b/src/libosmo-mgcp/mgcp_protocol.c
@@ -654,6 +654,17 @@
mgcp_rtp_end_config(endp, 0, &conn->end);
+ /* check connection mode setting */
+ if (conn->conn->mode != MGCP_CONN_LOOPBACK
+ && conn->conn->mode != MGCP_CONN_RECV_ONLY
+ && conn->end.rtp_port == 0) {
+ LOGP(DLMGCP, LOGL_ERROR,
+ "CRCX: endpoint:%x selected connection mode type requires
an opposite end!\n",
+ ENDPOINT_NUMBER(endp));
+ error_code = 527;
+ goto error2;
+ }
+
if (allocate_port(endp, conn) != 0) {
goto error2;
}
@@ -812,6 +823,17 @@
mgcp_set_audio_info(p->cfg, &conn->end.codec,
PTYPE_UNDEFINED, endp->local_options.codec);
+ /* check connection mode setting */
+ if (conn->conn->mode != MGCP_CONN_LOOPBACK
+ && conn->conn->mode != MGCP_CONN_RECV_ONLY
+ && conn->end.rtp_port == 0) {
+ LOGP(DLMGCP, LOGL_ERROR,
+ "MDCX: endpoint:%x selected connection mode type requires
an opposite end!\n",
+ ENDPOINT_NUMBER(endp));
+ error_code = 527;
+ goto error3;
+ }
+
if (setup_rtp_processing(endp, conn) != 0)
goto error3;
--
To view, visit https://gerrit.osmocom.org/6258
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I6ab01855d3b1faa36aebac357e7b97c563990678
Gerrit-PatchSet: 2
Gerrit-Project: osmo-mgw
Gerrit-Branch: master
Gerrit-Owner: dexter <pma...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
