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authorThomas Graf <tgraf@suug.ch>2005-08-20 17:25:29 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 16:02:53 -0700
commit58615242417638794a5ba299c49e3fbd6f47c2a3 (patch)
treeaf64e1a3ca7755a7962282042c342abb92daeee1 /net/ipv4/ip_input.c
parent2c656491e9ce77e12337073973794c4be467a489 (diff)
downloadop-kernel-dev-58615242417638794a5ba299c49e3fbd6f47c2a3.zip
op-kernel-dev-58615242417638794a5ba299c49e3fbd6f47c2a3.tar.gz
[IPV4]: Consistency and whitespace cleanup of ip_rcv()
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 81e1802..322b082 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -361,6 +361,7 @@ drop:
int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
{
struct iphdr *iph;
+ u32 len;
/* When the interface is in promisc. mode, drop all the crap
* that it receives, do not try to analyse it.
@@ -392,7 +393,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
*/
if (iph->ihl < 5 || iph->version != 4)
- goto inhdr_error;
+ goto inhdr_error;
if (!pskb_may_pull(skb, iph->ihl*4))
goto inhdr_error;
@@ -400,21 +401,19 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
iph = skb->nh.iph;
if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
- goto inhdr_error;
+ goto inhdr_error;
- {
- __u32 len = ntohs(iph->tot_len);
- if (skb->len < len || len < (iph->ihl<<2))
- goto inhdr_error;
+ len = ntohs(iph->tot_len);
+ if (skb->len < len || len < (iph->ihl*4))
+ goto inhdr_error;
- /* Our transport medium may have padded the buffer out. Now we know it
- * is IP we can trim to the true length of the frame.
- * Note this now means skb->len holds ntohs(iph->tot_len).
- */
- if (pskb_trim_rcsum(skb, len)) {
- IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
- goto drop;
- }
+ /* Our transport medium may have padded the buffer out. Now we know it
+ * is IP we can trim to the true length of the frame.
+ * Note this now means skb->len holds ntohs(iph->tot_len).
+ */
+ if (pskb_trim_rcsum(skb, len)) {
+ IP_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
+ goto drop;
}
return NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, dev, NULL,
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