49719eb355
The following patch kills __ip_ct_expect_unlink_destroy and export unlink_expect as ip_ct_unlink_expect. As it was discussed [1], the function __ip_ct_expect_unlink_destroy is a bit confusing so better do the following sequence: ip_ct_destroy_expect and ip_conntrack_expect_put. [1] https://lists.netfilter.org/pipermail/netfilter-devel/2005-August/020794.html Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
#ifndef _IP_CONNTRACK_CORE_H
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#define _IP_CONNTRACK_CORE_H
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#include <linux/netfilter.h>
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#define MAX_IP_CT_PROTO 256
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extern struct ip_conntrack_protocol *ip_ct_protos[MAX_IP_CT_PROTO];
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/* This header is used to share core functionality between the
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standalone connection tracking module, and the compatibility layer's use
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of connection tracking. */
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extern unsigned int ip_conntrack_in(unsigned int hooknum,
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struct sk_buff **pskb,
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *));
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extern int ip_conntrack_init(void);
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extern void ip_conntrack_cleanup(void);
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struct ip_conntrack_protocol;
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extern int
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ip_ct_get_tuple(const struct iphdr *iph,
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const struct sk_buff *skb,
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unsigned int dataoff,
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struct ip_conntrack_tuple *tuple,
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const struct ip_conntrack_protocol *protocol);
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extern int
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ip_ct_invert_tuple(struct ip_conntrack_tuple *inverse,
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const struct ip_conntrack_tuple *orig,
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const struct ip_conntrack_protocol *protocol);
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/* Find a connection corresponding to a tuple. */
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struct ip_conntrack_tuple_hash *
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ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
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const struct ip_conntrack *ignored_conntrack);
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extern int __ip_conntrack_confirm(struct sk_buff **pskb);
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/* Confirm a connection: returns NF_DROP if packet must be dropped. */
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static inline int ip_conntrack_confirm(struct sk_buff **pskb)
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{
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struct ip_conntrack *ct = (struct ip_conntrack *)(*pskb)->nfct;
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int ret = NF_ACCEPT;
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if (ct) {
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if (!is_confirmed(ct))
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ret = __ip_conntrack_confirm(pskb);
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ip_ct_deliver_cached_events(ct);
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}
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return ret;
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}
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extern void ip_ct_unlink_expect(struct ip_conntrack_expect *exp);
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extern struct list_head *ip_conntrack_hash;
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extern struct list_head ip_conntrack_expect_list;
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extern rwlock_t ip_conntrack_lock;
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#endif /* _IP_CONNTRACK_CORE_H */
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