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Commit 8f8a3715 authored by David S. Miller's avatar David S. Miller
Browse files

netfilter: Pass nf_hook_state through ip6t_do_table(). 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8fe22382

include/linux/netfilter_ipv6/ip6_tables.h

+1 −2
Original line number Diff line number Diff line
@@ -31,8 +31,7 @@ extern struct xt_table *ip6t_register_table(struct net *net, 
extern void ip6t_unregister_table(struct net *net, struct xt_table *table);

extern unsigned int ip6t_do_table(struct sk_buff *skb,

				  unsigned int hook,

				  const struct net_device *in,

				  const struct net_device *out,

				  const struct nf_hook_state *state,

				  struct xt_table *table);



/* Check for an extension */

net/ipv6/netfilter/ip6_tables.c

+6 −7
Original line number Diff line number Diff line
@@ -317,8 +317,7 @@ ip6t_next_entry(const struct ip6t_entry *entry) 
unsigned int

ip6t_do_table(struct sk_buff *skb,

	      unsigned int hook,

	      const struct net_device *in,

	      const struct net_device *out,

	      const struct nf_hook_state *state,

	      struct xt_table *table)

{

	static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
@@ -333,8 +332,8 @@ ip6t_do_table(struct sk_buff *skb, 
	unsigned int addend;



	/* Initialization */

	indev = in ? in->name : nulldevname;

	outdev = out ? out->name : nulldevname;

	indev = state->in ? state->in->name : nulldevname;

	outdev = state->out ? state->out->name : nulldevname;

	/* We handle fragments by dealing with the first fragment as

	 * if it was a normal packet.  All other fragments are treated

	 * normally, except that they will NEVER match rules that ask
@@ -342,8 +341,8 @@ ip6t_do_table(struct sk_buff *skb, 
	 * rule is also a fragment-specific rule, non-fragments won't

	 * match it. */

	acpar.hotdrop = false;

	acpar.in      = in;

	acpar.out     = out;

	acpar.in      = state->in;

	acpar.out     = state->out;

	acpar.family  = NFPROTO_IPV6;

	acpar.hooknum = hook;
@@ -393,7 +392,7 @@ ip6t_do_table(struct sk_buff *skb, 
#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)

		/* The packet is traced: log it */

		if (unlikely(skb->nf_trace))

			trace_packet(skb, hook, in, out,

			trace_packet(skb, hook, state->in, state->out,

				     table->name, private, e);

#endif

		/* Standard target? */

net/ipv6/netfilter/ip6table_filter.c

+1 −2
Original line number Diff line number Diff line
@@ -37,8 +37,7 @@ ip6table_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb, 
{

	const struct net *net = dev_net(state->in ? state->in : state->out);



	return ip6t_do_table(skb, ops->hooknum, state->in, state->out,

			     net->ipv6.ip6table_filter);

	return ip6t_do_table(skb, ops->hooknum, state, net->ipv6.ip6table_filter);

}



static struct nf_hook_ops *filter_ops __read_mostly;

net/ipv6/netfilter/ip6table_mangle.c

+6 −6
Original line number Diff line number Diff line
@@ -32,7 +32,7 @@ static const struct xt_table packet_mangler = { 
};



static unsigned int

ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)

ip6t_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state)

{

	unsigned int ret;

	struct in6_addr saddr, daddr;
@@ -57,8 +57,8 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out) 
	/* flowlabel and prio (includes version, which shouldn't change either */

	flowlabel = *((u_int32_t *)ipv6_hdr(skb));



	ret = ip6t_do_table(skb, NF_INET_LOCAL_OUT, NULL, out,

			    dev_net(out)->ipv6.ip6table_mangle);

	ret = ip6t_do_table(skb, NF_INET_LOCAL_OUT, state,

			    dev_net(state->out)->ipv6.ip6table_mangle);



	if (ret != NF_DROP && ret != NF_STOLEN &&

	    (!ipv6_addr_equal(&ipv6_hdr(skb)->saddr, &saddr) ||
@@ -80,12 +80,12 @@ ip6table_mangle_hook(const struct nf_hook_ops *ops, struct sk_buff *skb, 
		     const struct nf_hook_state *state)

{

	if (ops->hooknum == NF_INET_LOCAL_OUT)

		return ip6t_mangle_out(skb, state->out);

		return ip6t_mangle_out(skb, state);

	if (ops->hooknum == NF_INET_POST_ROUTING)

		return ip6t_do_table(skb, ops->hooknum, state->in, state->out,

		return ip6t_do_table(skb, ops->hooknum, state,

				     dev_net(state->out)->ipv6.ip6table_mangle);

	/* INPUT/FORWARD */

	return ip6t_do_table(skb, ops->hooknum, state->in, state->out,

	return ip6t_do_table(skb, ops->hooknum, state,

			     dev_net(state->in)->ipv6.ip6table_mangle);

}

net/ipv6/netfilter/ip6table_nat.c

+1 −2
Original line number Diff line number Diff line
@@ -37,8 +37,7 @@ static unsigned int ip6table_nat_do_chain(const struct nf_hook_ops *ops, 
{

	struct net *net = nf_ct_net(ct);



	return ip6t_do_table(skb, ops->hooknum, state->in, state->out,

			     net->ipv6.ip6table_nat);

	return ip6t_do_table(skb, ops->hooknum, state, net->ipv6.ip6table_nat);

}



static unsigned int ip6table_nat_fn(const struct nf_hook_ops *ops,