From eddc9ec53be2ecdbf4efe0efd4a83052594f0ac0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 20 Apr 2007 22:47:35 -0700 Subject: [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/ipv4/xfrm4_input.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'net/ipv4/xfrm4_input.c') diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index d89969c502d..5ceca951d73 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -28,7 +28,7 @@ static int xfrm4_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 switch (nexthdr) { case IPPROTO_IPIP: case IPPROTO_IPV6: - *spi = skb->nh.iph->saddr; + *spi = ip_hdr(skb)->saddr; *seq = 0; return 0; } @@ -39,9 +39,9 @@ static int xfrm4_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 #ifdef CONFIG_NETFILTER static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb) { - struct iphdr *iph = skb->nh.iph; - if (skb->dst == NULL) { + const struct iphdr *iph = ip_hdr(skb); + if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, skb->dev)) goto drop; @@ -55,18 +55,18 @@ drop: int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type) { - int err; __be32 spi, seq; struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH]; struct xfrm_state *x; int xfrm_nr = 0; int decaps = 0; + int err = xfrm4_parse_spi(skb, ip_hdr(skb)->protocol, &spi, &seq); - if ((err = xfrm4_parse_spi(skb, skb->nh.iph->protocol, &spi, &seq)) != 0) + if (err != 0) goto drop; do { - struct iphdr *iph = skb->nh.iph; + const struct iphdr *iph = ip_hdr(skb); if (xfrm_nr == XFRM_MAX_DEPTH) goto drop; @@ -113,7 +113,8 @@ int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type) break; } - if ((err = xfrm_parse_spi(skb, skb->nh.iph->protocol, &spi, &seq)) < 0) + err = xfrm_parse_spi(skb, ip_hdr(skb)->protocol, &spi, &seq); + if (err < 0) goto drop; } while (!err); @@ -147,14 +148,14 @@ int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type) } else { #ifdef CONFIG_NETFILTER __skb_push(skb, skb->data - skb_network_header(skb)); - skb->nh.iph->tot_len = htons(skb->len); - ip_send_check(skb->nh.iph); + ip_hdr(skb)->tot_len = htons(skb->len); + ip_send_check(ip_hdr(skb)); NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, skb->dev, NULL, xfrm4_rcv_encap_finish); return 0; #else - return -skb->nh.iph->protocol; + return -ip_hdr(skb)->protocol; #endif } -- cgit v1.2.3