/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _CONNTRACK_PROTO_GRE_H
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#define _CONNTRACK_PROTO_GRE_H
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#include <asm/byteorder.h>
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#include <net/gre.h>
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#include <net/pptp.h>
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struct nf_ct_gre {
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unsigned int stream_timeout;
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unsigned int timeout;
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};
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#include <net/netfilter/nf_conntrack_tuple.h>
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struct nf_conn;
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/* structure for original <-> reply keymap */
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struct nf_ct_gre_keymap {
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struct list_head list;
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struct nf_conntrack_tuple tuple;
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struct rcu_head rcu;
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};
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/* add new tuple->key_reply pair to keymap */
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int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir,
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struct nf_conntrack_tuple *t);
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void nf_ct_gre_keymap_flush(struct net *net);
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/* delete keymap entries */
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void nf_ct_gre_keymap_destroy(struct nf_conn *ct);
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bool gre_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
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struct net *net, struct nf_conntrack_tuple *tuple);
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#endif /* _CONNTRACK_PROTO_GRE_H */
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