| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _NF_SYNPROXY_SHARED_H |
| #define _NF_SYNPROXY_SHARED_H |
| |
| #include <linux/module.h> |
| #include <linux/skbuff.h> |
| #include <net/ip6_checksum.h> |
| #include <net/ip6_route.h> |
| #include <net/tcp.h> |
| |
| #include <net/netfilter/nf_conntrack_seqadj.h> |
| #include <net/netfilter/nf_conntrack_synproxy.h> |
| |
| void synproxy_send_client_synack(struct net *net, const struct sk_buff *skb, |
| const struct tcphdr *th, |
| const struct synproxy_options *opts); |
| |
| bool synproxy_recv_client_ack(struct net *net, |
| const struct sk_buff *skb, |
| const struct tcphdr *th, |
| struct synproxy_options *opts, u32 recv_seq); |
| |
| unsigned int ipv4_synproxy_hook(void *priv, struct sk_buff *skb, |
| const struct nf_hook_state *nhs); |
| int nf_synproxy_ipv4_init(struct synproxy_net *snet, struct net *net); |
| void nf_synproxy_ipv4_fini(struct synproxy_net *snet, struct net *net); |
| |
| #if IS_ENABLED(CONFIG_IPV6) |
| void synproxy_send_client_synack_ipv6(struct net *net, |
| const struct sk_buff *skb, |
| const struct tcphdr *th, |
| const struct synproxy_options *opts); |
| |
| bool synproxy_recv_client_ack_ipv6(struct net *net, const struct sk_buff *skb, |
| const struct tcphdr *th, |
| struct synproxy_options *opts, u32 recv_seq); |
| |
| unsigned int ipv6_synproxy_hook(void *priv, struct sk_buff *skb, |
| const struct nf_hook_state *nhs); |
| int nf_synproxy_ipv6_init(struct synproxy_net *snet, struct net *net); |
| void nf_synproxy_ipv6_fini(struct synproxy_net *snet, struct net *net); |
| #else |
| static inline int |
| nf_synproxy_ipv6_init(struct synproxy_net *snet, struct net *net) { return 0; } |
| static inline void |
| nf_synproxy_ipv6_fini(struct synproxy_net *snet, struct net *net) {}; |
| #endif /* CONFIG_IPV6 */ |
| |
| #endif /* _NF_SYNPROXY_SHARED_H */ |