Set destination port same as received source port in request

herlesupreeth · Mar 23, 2023 · 9a0e3df · 9a0e3df
1 parent 8b62618
commit 9a0e3df
Showing 1 changed file with 10 additions and 6 deletions.
diff --git a/src/modules/ims_ipsec_pcscf/cmd.c b/src/modules/ims_ipsec_pcscf/cmd.c
@@ -1046,13 +1046,17 @@ int ipsec_forward(struct sip_msg* m, udomain_t* d, int _cflags)
         // for Reply and TCP sends to UE client port, for Reply and UDP sends to UE server port
         // dst_port = dst_proto == PROTO_TCP ? s->port_uc : s->port_us;
 
-        // From P-CSCF client port
-        src_port = dst_proto == PROTO_TCP ? req->rcv.dst_port : s->port_pc;
-
-        if (vb && ((vb->port == s->port_uc) || (vb->port == s->port_us))) {
-            dst_port = vb->port;
+        // From Reply and TCP send via the same ports Request was recevied.
+        if (dst_proto == PROTO_TCP) {
+            src_port = req->rcv.dst_port;
+            dst_port = req->rcv.src_port;
         } else {
-            dst_port = s->port_us;
+            src_port =  s->port_pc;
+            if (vb && ((vb->port == s->port_uc) || (vb->port == s->port_us))) {
+                dst_port = vb->port;
+            } else {
+                dst_port = s->port_us;
+            }
         }
 
         // Check send socket