net: Make flowi ports AF dependent.

Create two sets of port member accessors, one set prefixed by fl4_*
and the other prefixed by fl6_*

This will let us to create AF optimal flow instances.

It will work because every context in which we access the ports,
we have to be fully aware of which AF the flowi is anyways.

Signed-off-by: David S. Miller <davem@davemloft.net>

9 files changed, 28 insertions, 28 deletions

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 3fde7f2..8d09195 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -384,8 +384,8 @@ static struct rtable *icmp_route_lookup(struct net *net, struct sk_buff *skb_in,
 		.fl4_src = saddr,
 		.fl4_tos = RT_TOS(tos),
 		.flowi_proto = IPPROTO_ICMP,
-		.fl_icmp_type = type,
-		.fl_icmp_code = code,
+		.fl4_icmp_type = type,
+		.fl4_icmp_code = code,
 	};
 	struct rtable *rt, *rt2;
 	int err;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 9708170..10a8e95 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -365,8 +365,8 @@ struct dst_entry *inet_csk_route_req(struct sock *sk,
 		.fl4_tos = RT_CONN_FLAGS(sk),
 		.flowi_proto = sk->sk_protocol,
 		.flowi_flags = inet_sk_flowi_flags(sk),
-		.fl_ip_sport = inet_sk(sk)->inet_sport,
-		.fl_ip_dport = ireq->rmt_port,
+		.fl4_sport = inet_sk(sk)->inet_sport,
+		.fl4_dport = ireq->rmt_port,
 	};
 	struct net *net = sock_net(sk);
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index e35ca40..67e5f71 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1479,8 +1479,8 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 			.fl4_dst = daddr,
 			.fl4_src = rt->rt_spec_dst,
 			.fl4_tos = RT_TOS(ip_hdr(skb)->tos),
-			.fl_ip_sport = tcp_hdr(skb)->dest,
-			.fl_ip_dport = tcp_hdr(skb)->source,
+			.fl4_sport = tcp_hdr(skb)->dest,
+			.fl4_dport = tcp_hdr(skb)->source,
 			.flowi_proto = sk->sk_protocol,
 			.flowi_flags = ip_reply_arg_flowi_flags(arg),
 		};
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 95481fe..1f3c695 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -55,7 +55,7 @@ static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 		    t->dst.protonum == IPPROTO_UDPLITE ||
 		    t->dst.protonum == IPPROTO_DCCP ||
 		    t->dst.protonum == IPPROTO_SCTP)
-			fl->fl_ip_dport = t->dst.u.tcp.port;
+			fl->fl4_dport = t->dst.u.tcp.port;
 	}
 
 	statusbit ^= IPS_NAT_MASK;
@@ -67,7 +67,7 @@ static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 		    t->dst.protonum == IPPROTO_UDPLITE ||
 		    t->dst.protonum == IPPROTO_DCCP ||
 		    t->dst.protonum == IPPROTO_SCTP)
-			fl->fl_ip_sport = t->src.u.tcp.port;
+			fl->fl4_sport = t->src.u.tcp.port;
 	}
 }
 #endif
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index b42b7cd..333b826 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -433,8 +433,8 @@ static int raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
 				code = iov->iov_base;
 
 			if (type && code) {
-				if (get_user(fl->fl_icmp_type, type) ||
-				    get_user(fl->fl_icmp_code, code))
+				if (get_user(fl->fl4_icmp_type, type) ||
+				    get_user(fl->fl4_icmp_code, code))
 					return -EFAULT;
 				probed = 1;
 			}
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 98d47dc..d90529d 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -353,8 +353,8 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 			.fl4_tos = RT_CONN_FLAGS(sk),
 			.flowi_proto = IPPROTO_TCP,
 			.flowi_flags = inet_sk_flowi_flags(sk),
-			.fl_ip_sport = th->dest,
-			.fl_ip_dport = th->source,
+			.fl4_sport = th->dest,
+			.fl4_dport = th->source,
 		};
 		security_req_classify_flow(req, &fl);
 		rt = ip_route_output_key(sock_net(sk), &fl);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index e10f62e..116e4a8 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -778,7 +778,7 @@ static int udp_push_pending_frames(struct sock *sk)
 	if (!skb)
 		goto out;
 
-	err = udp_send_skb(skb, fl->fl4_dst, fl->fl_ip_dport);
+	err = udp_send_skb(skb, fl->fl4_dst, fl->fl4_dport);
 
 out:
 	up->len = 0;
@@ -917,8 +917,8 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			.flowi_proto = sk->sk_protocol,
 			.flowi_flags = (inet_sk_flowi_flags(sk) |
 				     FLOWI_FLAG_CAN_SLEEP),
-			.fl_ip_sport = inet->inet_sport,
-			.fl_ip_dport = dport,
+			.fl4_sport = inet->inet_sport,
+			.fl4_dport = dport,
 		};
 		struct net *net = sock_net(sk);
 
@@ -973,9 +973,9 @@ back_from_confirm:
 	 *	Now cork the socket to pend data.
 	 */
 	inet->cork.fl.fl4_dst = daddr;
-	inet->cork.fl.fl_ip_dport = dport;
+	inet->cork.fl.fl4_dport = dport;
 	inet->cork.fl.fl4_src = saddr;
-	inet->cork.fl.fl_ip_sport = inet->inet_sport;
+	inet->cork.fl.fl4_sport = inet->inet_sport;
 	up->pending = AF_INET;
 
 do_append_data:
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 4294f12..b7b0921 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -117,8 +117,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be16 *ports = (__be16 *)xprth;
 
-				fl->fl_ip_sport = ports[!!reverse];
-				fl->fl_ip_dport = ports[!reverse];
+				fl->fl4_sport = ports[!!reverse];
+				fl->fl4_dport = ports[!reverse];
 			}
 			break;
 
@@ -126,8 +126,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			if (pskb_may_pull(skb, xprth + 2 - skb->data)) {
 				u8 *icmp = xprth;
 
-				fl->fl_icmp_type = icmp[0];
-				fl->fl_icmp_code = icmp[1];
+				fl->fl4_icmp_type = icmp[0];
+				fl->fl4_icmp_code = icmp[1];
 			}
 			break;
 
@@ -135,7 +135,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be32 *ehdr = (__be32 *)xprth;
 
-				fl->fl_ipsec_spi = ehdr[0];
+				fl->fl4_ipsec_spi = ehdr[0];
 			}
 			break;
 
@@ -143,7 +143,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			if (pskb_may_pull(skb, xprth + 8 - skb->data)) {
 				__be32 *ah_hdr = (__be32*)xprth;
 
-				fl->fl_ipsec_spi = ah_hdr[1];
+				fl->fl4_ipsec_spi = ah_hdr[1];
 			}
 			break;
 
@@ -151,7 +151,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be16 *ipcomp_hdr = (__be16 *)xprth;
 
-				fl->fl_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
+				fl->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
 			}
 			break;
 
@@ -163,13 +163,13 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 				if (greflags[0] & GRE_KEY) {
 					if (greflags[0] & GRE_CSUM)
 						gre_hdr++;
-					fl->fl_gre_key = gre_hdr[1];
+					fl->fl4_gre_key = gre_hdr[1];
 				}
 			}
 			break;
 
 		default:
-			fl->fl_ipsec_spi = 0;
+			fl->fl4_ipsec_spi = 0;
 			break;
 		}
 	}
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index d231434..663b550 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -25,9 +25,9 @@ __xfrm4_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
 {
 	sel->daddr.a4 = fl->fl4_dst;
 	sel->saddr.a4 = fl->fl4_src;
-	sel->dport = xfrm_flowi_dport(fl);
+	sel->dport = xfrm_flowi_dport(fl, &fl->uli_u);
 	sel->dport_mask = htons(0xffff);
-	sel->sport = xfrm_flowi_sport(fl);
+	sel->sport = xfrm_flowi_sport(fl, &fl->uli_u);
 	sel->sport_mask = htons(0xffff);
 	sel->family = AF_INET;
 	sel->prefixlen_d = 32;