moved interface enumeration code to socket, where it belongs

query interfaces every time we need it to respect changes in network config
added address listing on startup and "ipsec statusall"

src/charon/encoding/payloads/proposal_substructure.c

@@ -644,6 +644,8 @@ proposal_substructure_t *proposal_substructure_create_from_proposal(proposal_t *
 				*((u_int64_t*)this->spi.ptr) = proposal->get_spi(proposal);
 			}
 			break;
+		default:
+			break;
 	}
 	this->proposal_number = 0;
 	this->protocol_id = proposal->get_protocol(proposal);