diff options
Diffstat (limited to 'net/ipv4/ip_options.c')
| -rw-r--r-- | net/ipv4/ip_options.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c index 2fa411381b11..aeed4e5858ec 100644 --- a/net/ipv4/ip_options.c +++ b/net/ipv4/ip_options.c @@ -255,17 +255,14 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb) unsigned char * optptr; int optlen; unsigned char * pp_ptr = NULL; - struct rtable *rt = skb ? skb->rtable : NULL; - - if (!opt) { - opt = &(IPCB(skb)->opt); - iph = skb_network_header(skb); - opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr); - optptr = iph + sizeof(struct iphdr); - } else { + struct rtable *rt = NULL; + + if (skb != NULL) { + rt = skb->rtable; + optptr = (unsigned char *)&(ip_hdr(skb)[1]); + } else optptr = opt->__data; - iph = optptr - sizeof(struct iphdr); - } + iph = optptr - sizeof(struct iphdr); for (l = opt->optlen; l > 0; ) { switch (*optptr) { |