diff options
Diffstat (limited to 'net/ipv4/netfilter.c')
| -rw-r--r-- | net/ipv4/netfilter.c | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index 994a1f2..f3c0b54 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -16,7 +16,7 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) struct net *net = dev_net(skb_dst(skb)->dev); const struct iphdr *iph = ip_hdr(skb); struct rtable *rt; - struct flowi fl = {}; + struct flowi4 fl4 = {}; unsigned long orefdst; unsigned int hh_len; unsigned int type; @@ -31,14 +31,15 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) * packets with foreign saddr to appear on the NF_INET_LOCAL_OUT hook. */ if (addr_type == RTN_LOCAL) { - fl.fl4_dst = iph->daddr; + fl4.daddr = iph->daddr; if (type == RTN_LOCAL) - fl.fl4_src = iph->saddr; - fl.fl4_tos = RT_TOS(iph->tos); - fl.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0; - fl.mark = skb->mark; - fl.flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0; - if (ip_route_output_key(net, &rt, &fl) != 0) + fl4.saddr = iph->saddr; + fl4.flowi4_tos = RT_TOS(iph->tos); + fl4.flowi4_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0; + fl4.flowi4_mark = skb->mark; + fl4.flowi4_flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0; + rt = ip_route_output_key(net, &fl4); + if (IS_ERR(rt)) return -1; /* Drop old route. */ @@ -47,8 +48,9 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) } else { /* non-local src, find valid iif to satisfy * rp-filter when calling ip_route_input. */ - fl.fl4_dst = iph->saddr; - if (ip_route_output_key(net, &rt, &fl) != 0) + fl4.daddr = iph->saddr; + rt = ip_route_output_key(net, &fl4); + if (IS_ERR(rt)) return -1; orefdst = skb->_skb_refdst; @@ -66,10 +68,11 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) #ifdef CONFIG_XFRM if (!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) && - xfrm_decode_session(skb, &fl, AF_INET) == 0) { + xfrm_decode_session(skb, flowi4_to_flowi(&fl4), AF_INET) == 0) { struct dst_entry *dst = skb_dst(skb); skb_dst_set(skb, NULL); - if (xfrm_lookup(net, &dst, &fl, skb->sk, 0)) + dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), skb->sk, 0); + if (IS_ERR(dst)) return -1; skb_dst_set(skb, dst); } @@ -102,7 +105,8 @@ int ip_xfrm_me_harder(struct sk_buff *skb) dst = ((struct xfrm_dst *)dst)->route; dst_hold(dst); - if (xfrm_lookup(dev_net(dst->dev), &dst, &fl, skb->sk, 0) < 0) + dst = xfrm_lookup(dev_net(dst->dev), dst, &fl, skb->sk, 0); + if (IS_ERR(dst)) return -1; skb_dst_drop(skb); @@ -219,7 +223,11 @@ static __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook, static int nf_ip_route(struct dst_entry **dst, struct flowi *fl) { - return ip_route_output_key(&init_net, (struct rtable **)dst, fl); + struct rtable *rt = ip_route_output_key(&init_net, &fl->u.ip4); + if (IS_ERR(rt)) + return PTR_ERR(rt); + *dst = &rt->dst; + return 0; } static const struct nf_afinfo nf_ip_afinfo = { |