| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _CONNTRACK_PROTO_GRE_H |
| #define _CONNTRACK_PROTO_GRE_H |
| #include <asm/byteorder.h> |
| #include <net/gre.h> |
| #include <net/pptp.h> |
| |
| struct nf_ct_gre { |
| unsigned int stream_timeout; |
| unsigned int timeout; |
| }; |
| |
| #ifdef __KERNEL__ |
| #include <net/netfilter/nf_conntrack_tuple.h> |
| |
| struct nf_conn; |
| |
| /* structure for original <-> reply keymap */ |
| struct nf_ct_gre_keymap { |
| struct list_head list; |
| struct nf_conntrack_tuple tuple; |
| }; |
| |
| enum grep_conntrack { |
| GRE_CT_UNREPLIED, |
| GRE_CT_REPLIED, |
| GRE_CT_MAX |
| }; |
| |
| struct netns_proto_gre { |
| struct nf_proto_net nf; |
| rwlock_t keymap_lock; |
| struct list_head keymap_list; |
| unsigned int gre_timeouts[GRE_CT_MAX]; |
| }; |
| |
| /* add new tuple->key_reply pair to keymap */ |
| int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir, |
| struct nf_conntrack_tuple *t); |
| |
| /* delete keymap entries */ |
| void nf_ct_gre_keymap_destroy(struct nf_conn *ct); |
| |
| void nf_nat_need_gre(void); |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _CONNTRACK_PROTO_GRE_H */ |