Reverse revision 16804 that disables authentication

and a lot of other issues...


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@16825 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -6534,10 +6534,6 @@ static int cb_extensionstate(char *context, char* exten, int state, void *data)
 {
 	struct sip_pvt *p = data;
 
-	if (p == (struct sip_pvt *) NULL) {
-		ast_log(LOG_ERROR, "We're sent state change for channel we don't know... Major issue!!!!! Notify management!!!\n");
-		return 0;
-	}
 	switch(state) {
 	case AST_EXTENSION_DEACTIVATED:	/* Retry after a while */
 	case AST_EXTENSION_REMOVED:	/* Extension is gone */
@@ -11028,9 +11024,6 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 	} else if (debug && ignore)
 		ast_verbose("Ignoring this SUBSCRIBE request\n");
 
-	/* Don't treat this SUBSCRIBE request as new if it isn't */
-	if (!p->lastinvite) {
-
 	/* Find parameters to Event: header value and remove them for now */
 	if ((eventparam = strchr(event, ';')))
 		*eventparam++ = '\0';
@@ -11119,7 +11112,6 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 		if (p->subscribed != MWI_NOTIFICATION)
 			p->stateid = ast_extension_state_add(p->context, p->exten, cb_extensionstate, p);
 	}
-	}
 
 	if (!ignore && p)
 		p->lastinvite = seqno;