net: Socket implementations report the address families they support

[strongswan.git] / src / libcharon / plugins / socket_default / socket_default_socket.c

diff --git a/src/libcharon/plugins/socket_default/socket_default_socket.c b/src/libcharon/plugins/socket_default/socket_default_socket.c
index 494bf57..c1ed22e 100644 (file)
--- a/src/libcharon/plugins/socket_default/socket_default_socket.c
+++ b/src/libcharon/plugins/socket_default/socket_default_socket.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2012 Tobias Brunner
+ * Copyright (C) 2006-2013 Tobias Brunner
  * Copyright (C) 2006 Daniel Roethlisberger
  * Copyright (C) 2005-2010 Martin Willi
  * Copyright (C) 2005 Jan Hutter
@@ -501,6 +501,22 @@ METHOD(socket_t, get_port, u_int16_t,
        return nat_t ? this->natt : this->port;
 }
 
+METHOD(socket_t, supported_families, socket_family_t,
+       private_socket_default_socket_t *this)
+{
+       socket_family_t families = SOCKET_FAMILY_NONE;
+
+       if (this->ipv4 != -1 || this->ipv4_natt != -1)
+       {
+               families |= SOCKET_FAMILY_IPV4;
+       }
+       if (this->ipv6 != -1 || this->ipv6_natt != -1)
+       {
+               families |= SOCKET_FAMILY_IPV6;
+       }
+       return families;
+}
+
 /**
  * open a socket to send and receive packets
  */
@@ -671,6 +687,7 @@ socket_default_socket_t *socket_default_socket_create()
                                .send = _sender,
                                .receive = _receiver,
                                .get_port = _get_port,
+                               .supported_families = _supported_families,
                                .destroy = _destroy,
                        },
                },