Harald Welte has submitted this change and it was merged.

Change subject: protocol: allow wildcarded DLCX
......................................................................


protocol: allow wildcarded DLCX

In many cases it is simpler to instruct the mgcp-gw to drop all
connections at once instead of removing each connection
individually.

drop all connections and release the endpoint in when no connection
id is supplied with the DLCX command.

Change-Id: Ib5fcc72775bf72b489ff79ade36fb345d8d20736
---
M src/libosmo-mgcp/mgcp_protocol.c
1 file changed, 19 insertions(+), 2 deletions(-)

Approvals:
  Neels Hofmeyr: Looks good to me, but someone else must approve
  Harald Welte: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/src/libosmo-mgcp/mgcp_protocol.c b/src/libosmo-mgcp/mgcp_protocol.c
index 6c611f7..9c92c65 100644
--- a/src/libosmo-mgcp/mgcp_protocol.c
+++ b/src/libosmo-mgcp/mgcp_protocol.c
@@ -910,14 +910,31 @@
                }
        }
 
-       /* find the connection */
+       /* When no connection id is supplied, we will interpret this as a
+        * wildcarded DLCX and drop all connections at once. (See also
+        * RFC3435 Section F.7) */
+       if (!ci) {
+               LOGP(DLMGCP, LOGL_NOTICE,
+                    "DLCX: endpoint:%x missing ci (connectionIdentifier), will 
remove all connections at once\n",
+                    ENDPOINT_NUMBER(endp));
+
+               mgcp_release_endp(endp);
+
+               /* Note: In this case we do not return any statistics,
+                * as we assume that the client is not interested in
+                * this case. */
+               return create_ok_response(endp, 200, "DLCX", p->trans);
+       }
+
+       /* Parse the connection id */
        if (mgcp_parse_ci(&conn_id, ci)) {
                LOGP(DLMGCP, LOGL_ERROR,
-                    "DLCX: endpoint:%x insufficient parameters, missing ci 
(connectionIdentifier)\n",
+                    "DLCX: endpoint:%x insufficient parameters, invalid ci 
(connectionIdentifier)\n",
                     ENDPOINT_NUMBER(endp));
                return create_err_response(endp, 400, "DLCX", p->trans);
        }
 
+       /* Find the connection */
        conn = mgcp_conn_get_rtp(endp, conn_id);
        if (!conn)
                goto error3;

-- 
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Gerrit-MessageType: merged
Gerrit-Change-Id: Ib5fcc72775bf72b489ff79ade36fb345d8d20736
Gerrit-PatchSet: 11
Gerrit-Project: osmo-mgw
Gerrit-Branch: master
Gerrit-Owner: dexter <pma...@sysmocom.de>
Gerrit-Reviewer: Harald Welte <lafo...@gnumonks.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Neels Hofmeyr <nhofm...@sysmocom.de>

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