pcuif_proto: version 10: add support for IPv6 NSVCs

Introduce a address_type in the NSVC configuration pass the given
protocol.  The remote_ip is network byte order, the default
encoding for in_addr and in6_addr.

Change-Id: Ia0852f9f4395f1248b39363ef90f6f5673b24e2f
Related: SYS#4915
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index c2cc2c1..21eacfd 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -567,11 +567,22 @@
 	LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]);
 	LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]);
 	LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]);
-	ia.s_addr = htonl(info_ind->remote_ip[0]);
+	ia.s_addr = info_ind->remote_ip[0].v4.s_addr;
 	LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%s\n", inet_ntoa(ia));
 
+	switch (info_ind->address_type[0]) {
+	case PCU_IF_ADDR_TYPE_IPV4:
+		break;
+	case PCU_IF_ADDR_TYPE_IPV6:
+		LOGP(DL1IF, LOGL_ERROR, "This PCU does not support IPv6 NSVC!\n");
+		goto bssgp_failed;
+	default:
+		LOGP(DL1IF, LOGL_ERROR, "No IPv4 NSVC given!\n");
+		goto bssgp_failed;
+	}
+
 	pcu = gprs_bssgp_create_and_connect(bts, info_ind->local_port[0],
-		info_ind->remote_ip[0], info_ind->remote_port[0],
+		ntohl(info_ind->remote_ip[0].v4.s_addr), info_ind->remote_port[0],
 		info_ind->nsei, info_ind->nsvci[0], info_ind->bvci,
 		info_ind->mcc, info_ind->mnc, info_ind->mnc_3_digits, info_ind->lac, info_ind->rac,
 		info_ind->cell_id);