Added support for specifying IP address in PJSUA-LIB/pjsua.

This option can be used for example to select the IP 
interface of SIP/RTP/RTCP transports, or to specify the
public IP address of NAT/router in case port forwarding is
used.

For SIP transports, this feature works for both UDP and 
TCP transports.

Changes:
 - added public_ip field in pjsua_transport_config, and
   change SIP and media transport creation to consider this
   option.
 - added --ip-addr option in pjsua
 - added pjsip_tcp_transport_start2() which allows 
   specifying alternate TCP published address when creating
   TCP transports.




git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@742 74dad513-b988-da41-8d7b-12977e46ad98

1 files changed, 37 insertions, 0 deletions

diff --git a/pjsip/include/pjsip/sip_transport_tcp.h b/pjsip/include/pjsip/sip_transport_tcp.h
index 4f5664d4..db308d7d 100644
--- a/pjsip/include/pjsip/sip_transport_tcp.h
+++ b/pjsip/include/pjsip/sip_transport_tcp.h
@@ -78,6 +78,43 @@ PJ_DECL(pj_status_t) pjsip_tcp_transport_start(pjsip_endpoint *endpt,
 					       pjsip_tpfactory **p_factory);
 
 
+
+/**
+ * A newer variant of #pjsip_tcp_transport_start(), which allows specifying
+ * the published/public address of the TCP transport.
+ *
+ * @param endpt		The SIP endpoint.
+ * @param local		Optional local address to bind, or specify the
+ *			address to bind the server socket to. Both IP 
+ *			interface address and port fields are optional.
+ *			If IP interface address is not specified, socket
+ *			will be bound to PJ_INADDR_ANY. If port is not
+ *			specified, socket will be bound to any port
+ *			selected by the operating system.
+ * @param a_name	Optional published address, which is the address to be
+ *			advertised as the address of this SIP transport. 
+ *			If this argument is NULL, then the bound address
+ *			will be used as the published address.
+ * @param async_cnt	Number of simultaneous asynchronous accept()
+ *			operations to be supported. It is recommended that
+ *			the number here corresponds to the number of
+ *			processors in the system (or the number of SIP
+ *			worker threads).
+ * @param p_factory	Optional pointer to receive the instance of the
+ *			SIP TCP transport factory just created.
+ *
+ * @return		PJ_SUCCESS when the transport has been successfully
+ *			started and registered to transport manager, or
+ *			the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pjsip_tcp_transport_start2(pjsip_endpoint *endpt,
+					        const pj_sockaddr_in *local,
+					        const pjsip_host_port *a_name,
+					        unsigned async_cnt,
+					        pjsip_tpfactory **p_factory);
+
+
+
 PJ_END_DECL
 
 /**