diff options
Diffstat (limited to 'include/net/netfilter/nf_nat.h')
| -rw-r--r-- | include/net/netfilter/nf_nat.h | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h index a17eb2f8d40e..cf332c4e0b32 100644 --- a/include/net/netfilter/nf_nat.h +++ b/include/net/netfilter/nf_nat.h @@ -31,8 +31,7 @@ struct nf_conn; /* The structure embedded in the conntrack structure. */ struct nf_conn_nat { union nf_conntrack_nat_help help; -#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV4) || \ - IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV6) +#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE) int masq_index; #endif }; @@ -47,10 +46,6 @@ extern unsigned int nf_nat_alloc_null_binding(struct nf_conn *ct, struct nf_conn_nat *nf_ct_nat_ext_add(struct nf_conn *ct); -/* Is this tuple already taken? (not by us)*/ -int nf_nat_used_tuple(const struct nf_conntrack_tuple *tuple, - const struct nf_conn *ignored_conntrack); - static inline struct nf_conn_nat *nfct_nat(const struct nf_conn *ct) { #if defined(CONFIG_NF_NAT) || defined(CONFIG_NF_NAT_MODULE) @@ -65,8 +60,7 @@ static inline bool nf_nat_oif_changed(unsigned int hooknum, struct nf_conn_nat *nat, const struct net_device *out) { -#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV4) || \ - IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV6) +#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE) return nat && nat->masq_index && hooknum == NF_INET_POST_ROUTING && CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL && nat->masq_index != out->ifindex; @@ -79,4 +73,43 @@ int nf_nat_register_fn(struct net *net, const struct nf_hook_ops *ops, const struct nf_hook_ops *nat_ops, unsigned int ops_count); void nf_nat_unregister_fn(struct net *net, const struct nf_hook_ops *ops, unsigned int ops_count); + +unsigned int nf_nat_packet(struct nf_conn *ct, enum ip_conntrack_info ctinfo, + unsigned int hooknum, struct sk_buff *skb); + +unsigned int nf_nat_manip_pkt(struct sk_buff *skb, struct nf_conn *ct, + enum nf_nat_manip_type mtype, + enum ip_conntrack_dir dir); +void nf_nat_csum_recalc(struct sk_buff *skb, + u8 nfproto, u8 proto, void *data, __sum16 *check, + int datalen, int oldlen); + +int nf_nat_icmp_reply_translation(struct sk_buff *skb, struct nf_conn *ct, + enum ip_conntrack_info ctinfo, + unsigned int hooknum); + +int nf_nat_icmpv6_reply_translation(struct sk_buff *skb, struct nf_conn *ct, + enum ip_conntrack_info ctinfo, + unsigned int hooknum, unsigned int hdrlen); + +int nf_nat_ipv4_register_fn(struct net *net, const struct nf_hook_ops *ops); +void nf_nat_ipv4_unregister_fn(struct net *net, const struct nf_hook_ops *ops); + +int nf_nat_ipv6_register_fn(struct net *net, const struct nf_hook_ops *ops); +void nf_nat_ipv6_unregister_fn(struct net *net, const struct nf_hook_ops *ops); + +unsigned int +nf_nat_inet_fn(void *priv, struct sk_buff *skb, + const struct nf_hook_state *state); + +int nf_xfrm_me_harder(struct net *n, struct sk_buff *s, unsigned int family); + +static inline int nf_nat_initialized(struct nf_conn *ct, + enum nf_nat_manip_type manip) +{ + if (manip == NF_NAT_MANIP_SRC) + return ct->status & IPS_SRC_NAT_DONE; + else + return ct->status & IPS_DST_NAT_DONE; +} #endif |