Add support for specifying the registration expiry on a per registration basis in the register line. This comes from a Switchvox patch. (issue AST-24)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114912 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -63,6 +63,8 @@ SIP Changes
    and restore this performance improvement. Astobj2 refcounting is now used
    for users, peers, and dialogs.  Users are encouraged to assist in regression
    testing and problem reporting!
+ * Added ability to specify registration expiry time on a per registration basis in
+   the register line.
 
 IAX Changes
 -----------

channels/chan_sip.c

@@ -6294,7 +6294,7 @@ static int sip_register(const char *value, int lineno)
 	enum sip_transport transport = SIP_TRANSPORT_UDP;
 	char buf[256] = "";
 	char *username = NULL;
-	char *hostname=NULL, *secret=NULL, *authuser=NULL;
+	char *hostname=NULL, *secret=NULL, *authuser=NULL, *expiry=NULL;
 	char *porta=NULL;
 	char *callback=NULL;
 	char *trans=NULL;
@@ -6330,7 +6330,7 @@ static int sip_register(const char *value, int lineno)
 	if (hostname)
 		*hostname++ = '\0';
 	if (ast_strlen_zero(username) || ast_strlen_zero(hostname)) {
-		ast_log(LOG_WARNING, "Format for registration is user[:secret[:authuser]]@host[:port][/contact] at line %d\n", lineno);
+		ast_log(LOG_WARNING, "Format for registration is user[:secret[:authuser]]@host[:port][/contact][~expiry] at line %d\n", lineno);
 		return -1;
 	}
 	/* split user[:secret[:authuser]] */
@@ -6342,6 +6342,9 @@ static int sip_register(const char *value, int lineno)
 			*authuser++ = '\0';
 	}
 	/* split host[:port][/contact] */
+	expiry = strchr(hostname, '~');
+	if (expiry)
+		*expiry++ = '\0';
 	callback = strchr(hostname, '/');
 	if (callback)
 		*callback++ = '\0';
@@ -6380,9 +6383,9 @@ static int sip_register(const char *value, int lineno)
 		ast_string_field_set(reg, secret, secret);
 	reg->transport = transport;
 	reg->expire = -1;
-	reg->expiry = default_expiry;
+	reg->expiry = (expiry ? atoi(expiry) : default_expiry);
 	reg->timeout =  -1;
-	reg->refresh = default_expiry;
+	reg->refresh = reg->expiry;
 	reg->portno = portnum;
 	reg->callid_valid = FALSE;
 	reg->ocseq = INITIAL_CSEQ;

configs/sip.conf.sample

@@ -390,7 +390,7 @@ srvlookup=yes			; Enable DNS SRV lookups on outbound calls
 ;----------------------------------------- OUTBOUND SIP REGISTRATIONS  ------------------------
 ; Asterisk can register as a SIP user agent to a SIP proxy (provider)
 ; Format for the register statement is:
-;       register => [transport://]user[:secret[:authuser]]@host[:port][/extension]
+;       register => [transport://]user[:secret[:authuser]]@host[:port][/extension][~expiry]
 ;
 ; 
 ;