- Expiration timeout is now taken from the REGISTER response

ChangeLog

@@ -1,11 +1,12 @@
 0.5.12
 ======
-  14-Jul-2005:  - allocate only even port numbers for RTP traffic
+   9-Oct-2005:  - Expiration timeout is now taken from the REGISTER response
    1-Oct-2005:  - [1278537] Read proxy_auth_pwfile after config file is read
                 - [1278591] Proxy-Authenticate header not included in response
                 - process empty Contact header (means "query registrations")
                   (only supported for registrations at a remote server)
                 - handle multiple Contact headers (e.g. in REGISTER response)
+  14-Jul-2005:  - allocate only even port numbers for RTP traffic
 
 0.5.11
 ======

src/proxy.c

@@ -786,7 +786,10 @@ int proxy_response (sip_ticket_t *ticket) {
           * REGISTER returns *my* Contact header information.
           * Rewrite Contact header back to represent the true address.
           * Other responses do return the Contact header of the sender.
+          * also change the expiration timeout to the value returned by the
+          * server.
           */
+         sts = register_set_expire(ticket);
          sip_rewrite_contact(ticket, DIR_INCOMING);
       }
 

src/register.c

@@ -601,3 +601,72 @@ int register_response(sip_ticket_t *ticket, int flag) {
    return STS_SUCCESS;
 }
 
+
+/*
+ * set expiration timeout from a SIP response
+ *
+ * RETURNS
+ *      STS_SUCCESS on success
+ *      STS_FAILURE on error
+ */
+int register_set_expire(sip_ticket_t *ticket) {
+   int i, j;
+   int expires=-1;
+   osip_contact_t *contact;
+   time_t time_now;
+   osip_header_t *expires_hdr=NULL;
+   osip_uri_param_t *expires_param=NULL;
+
+   if (ticket->direction != RESTYP_INCOMING) {
+      WARN("register_set_expire called with != incoming response");
+      return STS_FAILURE;
+   }
+
+   time(&time_now);
+
+   DEBUGC(DBCLASS_REG,"REGISTER response, looking for 'Expire' information");
+
+   /* evaluate Expires Header field */
+   osip_message_get_expires(ticket->sipmsg, 0, &expires_hdr);
+
+   /* loop for all existing contact headers in message */
+   for (j=0; contact != NULL; j++) {
+      osip_message_get_contact(ticket->sipmsg, j, &contact);
+
+     /*
+      * look for an Contact expires parameter - in case of REGISTER
+      * these two are equal. The Contact expires has higher priority!
+      */
+      if (contact==NULL) continue;
+
+      osip_contact_param_get_byname(contact, EXPIRES, &expires_param);
+
+      if (expires_param && expires_param->gvalue) {
+         /* get expires from contact Header */
+         expires=atoi(expires_param->gvalue);
+      } else if (expires_hdr && expires_hdr->hvalue) {
+         /* get expires from expires Header */
+         expires=atoi(expires_hdr->hvalue);
+      }
+
+      if (expires > 0) {
+
+         /* search for an entry */
+         for (i=0;i<URLMAP_SIZE;i++){
+            if (urlmap[i].active == 0) continue;
+            if ((compare_url(contact->url, urlmap[i].masq_url)==STS_SUCCESS)) break;
+         }
+
+         /* found a mapping entry */
+         if (i<URLMAP_SIZE) {
+            /* update registration timeout */
+            DEBUGC(DBCLASS_REG,"changing registration timeout to %i"
+                               " entry [%i]", expires, i);
+            urlmap[i].expires=time_now+expires;
+         } else {
+         DEBUGC(DBCLASS_REG,"no urlmap entry found");
+         }
+      }
+   } /* for j */
+   return STS_SUCCESS;
+}

src/siproxd.c

@@ -406,9 +406,9 @@ int main (int argc, char *argv[])
                    ticket.sipmsg->sip_method : "NULL") :
                 ((ticket.sipmsg->reason_phrase) ? 
                    ticket.sipmsg->reason_phrase : "NULL")));
-              
+
       /*
-       * if an REQ REGISTER, check if it is directed to myself,
+       * if a REQ REGISTER, check if it is directed to myself,
        * or am I just the outbound proxy but no registrar.
        * - If I'm the registrar, register & generate answer
        * - If I'm just the outbound proxy, register, rewrite & forward
@@ -441,9 +441,7 @@ int main (int argc, char *argv[])
                   sts = proxy_request(&ticket);
                }
             } else {
-               if (MSG_IS_REQUEST(ticket.sipmsg)) {
+               sip_gen_response(&ticket, 408 /*request timeout*/);
-                  sip_gen_response(&ticket, 408 /*request timeout*/);
-               }
             }
          } else {
             WARN("non-authorized registration attempt from %s",

src/siproxd.h

@@ -131,6 +131,7 @@ void register_save(void);
 int  register_client(sip_ticket_t *ticket, int force_lcl_masq);		/*X*/
 void register_agemap(void);
 int  register_response(sip_ticket_t *ticket, int flag);			/*X*/
+int  register_set_expire(sip_ticket_t *ticket);				/*X*/
 
 /* proxy.c */
 int proxy_request (sip_ticket_t *ticket);				/*X*/