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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-20 22:47:35 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:25:10 -0700
commiteddc9ec53be2ecdbf4efe0efd4a83052594f0ac0 (patch)
tree4a38ab4dbd9d61fdf5a5ea6ed61463e0b9e33ba7 /net/ipv4/udp.c
parente023dd643798c4f06c16466af90b4d250e4b8bd7 (diff)
[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 1bbf5510cf3a..b4cad50c18e9 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -867,7 +867,7 @@ try_again:
{
sin->sin_family = AF_INET;
sin->sin_port = skb->h.uh->source;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
}
if (inet->cmsg_flags)
@@ -990,7 +990,7 @@ static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb)
return 0;
/* Now we can update and verify the packet length... */
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iphlen = iph->ihl << 2;
iph->tot_len = htons(ntohs(iph->tot_len) - len);
if (skb->len < iphlen + len) {
@@ -1168,6 +1168,7 @@ static int __udp4_lib_mcast_deliver(struct sk_buff *skb,
static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh,
int proto)
{
+ const struct iphdr *iph;
int err;
UDP_SKB_CB(skb)->partial_cov = 0;
@@ -1179,16 +1180,16 @@ static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh,
return err;
}
+ iph = ip_hdr(skb);
if (uh->check == 0) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else if (skb->ip_summed == CHECKSUM_COMPLETE) {
- if (!csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
- skb->len, proto, skb->csum))
+ if (!csum_tcpudp_magic(iph->saddr, iph->daddr, skb->len,
+ proto, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = csum_tcpudp_nofold(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
+ skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
skb->len, proto, 0);
/* Probably, we should checksum udp header (it should be in cache
* in any case) and data in tiny packets (< rx copybreak).
@@ -1208,8 +1209,8 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
struct udphdr *uh = skb->h.uh;
unsigned short ulen;
struct rtable *rt = (struct rtable*)skb->dst;
- __be32 saddr = skb->nh.iph->saddr;
- __be32 daddr = skb->nh.iph->daddr;
+ __be32 saddr = ip_hdr(skb)->saddr;
+ __be32 daddr = ip_hdr(skb)->daddr;
/*
* Validate the packet.