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Commit 22aba383 authored by Denis V. Lunev's avatar Denis V. Lunev Committed by David S. Miller
Browse files

[IPV4]: Always pass ip_options pointer into ip_options_compile. 



This makes code a bit more uniform and straigthforward.

Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ef722495

net/ipv4/ip_input.c

+3 −2
Original line number Diff line number Diff line
@@ -283,13 +283,14 @@ static inline int ip_rcv_options(struct sk_buff *skb) 
	}



	iph = ip_hdr(skb);

	opt = &(IPCB(skb)->opt);

	opt->optlen = iph->ihl*4 - sizeof(struct iphdr);



	if (ip_options_compile(NULL, skb)) {

	if (ip_options_compile(opt, skb)) {

		IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);

		goto drop;

	}



	opt = &(IPCB(skb)->opt);

	if (unlikely(opt->srr)) {

		struct in_device *in_dev = in_dev_get(dev);

		if (in_dev) {

net/ipv4/ip_options.c

+7 −10
Original line number Diff line number Diff line
@@ -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;

	struct rtable *rt = 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 {

	if (skb != NULL) {

		rt = skb->rtable;

		optptr = (unsigned char *)&(ip_hdr(skb)[1]);

	} else

		optptr = opt->__data;

	iph = optptr - sizeof(struct iphdr);

	}



	for (l = opt->optlen; l > 0; ) {

		switch (*optptr) {