[XFRM] IPV6: Fix outbound RO transformation which is broken by IPsec …

…tunnel patch.

It seems to miss RO mode path by IPv6 over IPv4 IPsec tunnel patch
when it changed semantics to check the mode from
"xfrm[i]->props.mode != XFRM_MODE_TRANSPORT" to
"xfrm[i]->props.mode == XFRM_MODE_TUNNEL" before changing address.
It also makes two incline functions __xfrm6_bundle_addr_{remote,local}
are used by nobody.

This patch fixes it.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/xfrm6_policy.c

@@ -178,16 +178,18 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 		__xfrm6_bundle_len_inc(&header_len, &nfheader_len, xfrm[i]);
 		trailer_len += xfrm[i]->props.trailer_len;
 
-		if (xfrm[i]->props.mode == XFRM_MODE_TUNNEL) {
+		if (xfrm[i]->props.mode == XFRM_MODE_TUNNEL ||
+		    xfrm[i]->props.mode == XFRM_MODE_ROUTEOPTIMIZATION) {
 			unsigned short encap_family = xfrm[i]->props.family;
 			switch(encap_family) {
 			case AF_INET:
 				fl_tunnel.fl4_dst = xfrm[i]->id.daddr.a4;
 				fl_tunnel.fl4_src = xfrm[i]->props.saddr.a4;
 				break;
 			case AF_INET6:
-				ipv6_addr_copy(&fl_tunnel.fl6_dst, (struct in6_addr*)&xfrm[i]->id.daddr.a6);
-				ipv6_addr_copy(&fl_tunnel.fl6_src, (struct in6_addr*)&xfrm[i]->props.saddr.a6);
+				ipv6_addr_copy(&fl_tunnel.fl6_dst, __xfrm6_bundle_addr_remote(xfrm[i], &fl->fl6_dst));
+
+				ipv6_addr_copy(&fl_tunnel.fl6_src, __xfrm6_bundle_addr_remote(xfrm[i], &fl->fl6_src));
 				break;
 			default:
 				BUG_ON(1);