[svn-commits] mmichelson: branch group/CCSS r232081 - /team/group/CCSS/channels/chan_sip.c

[SVN commits to the Digium repositories]

Author: mmichelson
Date: Tue Dec  1 18:29:58 2009
New Revision: 232081

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=232081
Log:
Add skeleton code for adding Call-Info to responses to indicate the
availability of CC. I will take care of this tomorrow, I suppose.


Modified:
    team/group/CCSS/channels/chan_sip.c

Modified: team/group/CCSS/channels/chan_sip.c
URL: http://svnview.digium.com/svn/asterisk/team/group/CCSS/channels/chan_sip.c?view=diff&rev=232081&r1=232080&r2=232081
==============================================================================
--- team/group/CCSS/channels/chan_sip.c (original)
+++ team/group/CCSS/channels/chan_sip.c Tue Dec  1 18:29:58 2009
@@ -11761,6 +11761,21 @@
 	dst->data->used = src->data->used;
 }
 
+static void add_cc_call_info_to_response(struct sip_pvt *p, struct sip_request *resp)
+{
+	/* We need to add a Call-Info header to this response. What is in it, you ask?
+	 * First, we generate a URI that the caller should send a SUBSCRIBE to. Then, we provide
+	 * two parameters, purpose=call-completion and one of m=BS, m=NR, or m=NL.
+	 * 
+	 * We only need to generate the URI once per call. We can determine if we've already
+	 * done so using the agent_pvt's subscribe_uri string as an indicator. If it's zero-length
+	 * then we haven't yet created the URI. If not, then we have created it, and we can
+	 * just re-use it.
+	 *
+	 * The m= part is not taken care of yet, but it's also not really all that important.
+	 */
+}
+
 /*! \brief Used for 200 OK and 183 early media
 	\return Will return XMIT_ERROR for network errors.
 */
@@ -11775,6 +11790,9 @@
 	respprep(&resp, p, msg, req);
 	if (rpid == TRUE) {
 		add_rpid(&resp, p);
+	}
+	if (ast_test_flag(&p->flags[0], SIP_OFFER_CC)) {
+		add_cc_call_info_to_response(p, &resp);
 	}
 	if (p->rtp) {
 		if (!p->autoframing && !ast_test_flag(&p->flags[0], SIP_OUTGOING)) {