forked from luck/tmp_suning_uos_patched
[IPV4]: Always pass ip_options pointer into ip_options_compile.
This makes code a bit more uniform and straigthforward. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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ef722495c8
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22aba383ce
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@ -283,13 +283,14 @@ static inline int ip_rcv_options(struct sk_buff *skb)
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}
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iph = ip_hdr(skb);
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opt = &(IPCB(skb)->opt);
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opt->optlen = iph->ihl*4 - sizeof(struct iphdr);
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if (ip_options_compile(NULL, skb)) {
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if (ip_options_compile(opt, skb)) {
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IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
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goto drop;
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}
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opt = &(IPCB(skb)->opt);
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if (unlikely(opt->srr)) {
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struct in_device *in_dev = in_dev_get(dev);
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if (in_dev) {
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@ -255,17 +255,14 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
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unsigned char * optptr;
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int optlen;
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unsigned char * pp_ptr = NULL;
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struct rtable *rt = skb ? skb->rtable : NULL;
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struct rtable *rt = NULL;
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if (!opt) {
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opt = &(IPCB(skb)->opt);
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iph = skb_network_header(skb);
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opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
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optptr = iph + sizeof(struct iphdr);
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} else {
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if (skb != NULL) {
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rt = skb->rtable;
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optptr = (unsigned char *)&(ip_hdr(skb)[1]);
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} else
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optptr = opt->__data;
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iph = optptr - sizeof(struct iphdr);
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}
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iph = optptr - sizeof(struct iphdr);
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for (l = opt->optlen; l > 0; ) {
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switch (*optptr) {
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