[IPV4]: RTA_{DST,SRC,GATEWAY,PREFSRC} annotated

these are passed net-endian; use be32 netlink accessors

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/fib_frontend.c

@@ -499,22 +499,22 @@ static int rtm_to_fib_config(struct sk_buff *skb, struct nlmsghdr *nlh,
 	nlmsg_for_each_attr(attr, nlh, sizeof(struct rtmsg), remaining) {
 		switch (attr->nla_type) {
 		case RTA_DST:
-			cfg->fc_dst = nla_get_u32(attr);
+			cfg->fc_dst = nla_get_be32(attr);
 			break;
 		case RTA_SRC:
-			cfg->fc_src = nla_get_u32(attr);
+			cfg->fc_src = nla_get_be32(attr);
 			break;
 		case RTA_OIF:
 			cfg->fc_oif = nla_get_u32(attr);
 			break;
 		case RTA_GATEWAY:
-			cfg->fc_gw = nla_get_u32(attr);
+			cfg->fc_gw = nla_get_be32(attr);
 			break;
 		case RTA_PRIORITY:
 			cfg->fc_priority = nla_get_u32(attr);
 			break;
 		case RTA_PREFSRC:
-			cfg->fc_prefsrc = nla_get_u32(attr);
+			cfg->fc_prefsrc = nla_get_be32(attr);
 			break;
 		case RTA_METRICS:
 			cfg->fc_mx = nla_data(attr);

net/ipv4/fib_semantics.c

@@ -374,7 +374,7 @@ static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
 			struct nlattr *nla, *attrs = rtnh_attrs(rtnh);
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
-			nh->nh_gw = nla ? nla_get_u32(nla) : 0;
+			nh->nh_gw = nla ? nla_get_be32(nla) : 0;
 #ifdef CONFIG_NET_CLS_ROUTE
 			nla = nla_find(attrs, attrlen, RTA_FLOW);
 			nh->nh_tclassid = nla ? nla_get_u32(nla) : 0;
@@ -427,7 +427,7 @@ int fib_nh_match(struct fib_config *cfg, struct fib_info *fi)
 			struct nlattr *nla, *attrs = rtnh_attrs(rtnh);
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
-			if (nla && nla_get_u32(nla) != nh->nh_gw)
+			if (nla && nla_get_be32(nla) != nh->nh_gw)
 				return 1;
 #ifdef CONFIG_NET_CLS_ROUTE
 			nla = nla_find(attrs, attrlen, RTA_FLOW);
@@ -952,7 +952,7 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	rtm->rtm_protocol = fi->fib_protocol;
 
 	if (rtm->rtm_dst_len)
-		NLA_PUT_U32(skb, RTA_DST, dst);
+		NLA_PUT_BE32(skb, RTA_DST, dst);
 
 	if (fi->fib_priority)
 		NLA_PUT_U32(skb, RTA_PRIORITY, fi->fib_priority);
@@ -961,11 +961,11 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 		goto nla_put_failure;
 
 	if (fi->fib_prefsrc)
-		NLA_PUT_U32(skb, RTA_PREFSRC, fi->fib_prefsrc);
+		NLA_PUT_BE32(skb, RTA_PREFSRC, fi->fib_prefsrc);
 
 	if (fi->fib_nhs == 1) {
 		if (fi->fib_nh->nh_gw)
-			NLA_PUT_U32(skb, RTA_GATEWAY, fi->fib_nh->nh_gw);
+			NLA_PUT_BE32(skb, RTA_GATEWAY, fi->fib_nh->nh_gw);
 
 		if (fi->fib_nh->nh_oif)
 			NLA_PUT_U32(skb, RTA_OIF, fi->fib_nh->nh_oif);
@@ -993,7 +993,7 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 			rtnh->rtnh_ifindex = nh->nh_oif;
 
 			if (nh->nh_gw)
-				NLA_PUT_U32(skb, RTA_GATEWAY, nh->nh_gw);
+				NLA_PUT_BE32(skb, RTA_GATEWAY, nh->nh_gw);
 #ifdef CONFIG_NET_CLS_ROUTE
 			if (nh->nh_tclassid)
 				NLA_PUT_U32(skb, RTA_FLOW, nh->nh_tclassid);

net/ipv4/route.c

@@ -2661,11 +2661,11 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	if (rt->rt_flags & RTCF_NOTIFY)
 		r->rtm_flags |= RTM_F_NOTIFY;
 
-	NLA_PUT_U32(skb, RTA_DST, rt->rt_dst);
+	NLA_PUT_BE32(skb, RTA_DST, rt->rt_dst);
 
 	if (rt->fl.fl4_src) {
 		r->rtm_src_len = 32;
-		NLA_PUT_U32(skb, RTA_SRC, rt->fl.fl4_src);
+		NLA_PUT_BE32(skb, RTA_SRC, rt->fl.fl4_src);
 	}
 	if (rt->u.dst.dev)
 		NLA_PUT_U32(skb, RTA_OIF, rt->u.dst.dev->ifindex);
@@ -2678,12 +2678,12 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 		NLA_PUT_U32(skb, RTA_MP_ALGO, rt->rt_multipath_alg);
 #endif
 	if (rt->fl.iif)
-		NLA_PUT_U32(skb, RTA_PREFSRC, rt->rt_spec_dst);
+		NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_spec_dst);
 	else if (rt->rt_src != rt->fl.fl4_src)
-		NLA_PUT_U32(skb, RTA_PREFSRC, rt->rt_src);
+		NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_src);
 
 	if (rt->rt_dst != rt->rt_gateway)
-		NLA_PUT_U32(skb, RTA_GATEWAY, rt->rt_gateway);
+		NLA_PUT_BE32(skb, RTA_GATEWAY, rt->rt_gateway);
 
 	if (rtnetlink_put_metrics(skb, rt->u.dst.metrics) < 0)
 		goto nla_put_failure;
@@ -2768,8 +2768,8 @@ int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 	skb->nh.iph->protocol = IPPROTO_ICMP;
 	skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
 
-	src = tb[RTA_SRC] ? nla_get_u32(tb[RTA_SRC]) : 0;
-	dst = tb[RTA_DST] ? nla_get_u32(tb[RTA_DST]) : 0;
+	src = tb[RTA_SRC] ? nla_get_be32(tb[RTA_SRC]) : 0;
+	dst = tb[RTA_DST] ? nla_get_be32(tb[RTA_DST]) : 0;
 	iif = tb[RTA_IIF] ? nla_get_u32(tb[RTA_IIF]) : 0;
 
 	if (iif) {