4 #include <linux/netfilter.h>
6 /* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
7 * disappear once iptables is replaced with pkttables. Please DO NOT use them
9 #define NF_LOG_TCPSEQ 0x01 /* Log TCP sequence numbers */
10 #define NF_LOG_TCPOPT 0x02 /* Log TCP options */
11 #define NF_LOG_IPOPT 0x04 /* Log IP options */
12 #define NF_LOG_UID 0x08 /* Log UID owning local socket */
13 #define NF_LOG_MASK 0x0f
36 typedef void nf_logfn(struct net *net,
39 const struct sk_buff *skb,
40 const struct net_device *in,
41 const struct net_device *out,
42 const struct nf_loginfo *li,
47 enum nf_log_type type;
52 /* Function to register/unregister log function. */
53 int nf_log_register(u_int8_t pf, struct nf_logger *logger);
54 void nf_log_unregister(struct nf_logger *logger);
56 void nf_log_set(struct net *net, u_int8_t pf,
57 const struct nf_logger *logger);
58 void nf_log_unset(struct net *net, const struct nf_logger *logger);
60 int nf_log_bind_pf(struct net *net, u_int8_t pf,
61 const struct nf_logger *logger);
62 void nf_log_unbind_pf(struct net *net, u_int8_t pf);
64 int nf_logger_find_get(int pf, enum nf_log_type type);
65 void nf_logger_put(int pf, enum nf_log_type type);
66 void nf_logger_request_module(int pf, enum nf_log_type type);
68 #define MODULE_ALIAS_NF_LOGGER(family, type) \
69 MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type))
71 /* Calls the registered backend logging function */
73 void nf_log_packet(struct net *net,
76 const struct sk_buff *skb,
77 const struct net_device *in,
78 const struct net_device *out,
79 const struct nf_loginfo *li,
80 const char *fmt, ...);
84 struct nf_log_buf *nf_log_buf_open(void);
85 __printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...);
86 void nf_log_buf_close(struct nf_log_buf *m);
88 /* common logging functions */
89 int nf_log_dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb,
90 u8 proto, int fragment, unsigned int offset);
91 int nf_log_dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb,
92 u8 proto, int fragment, unsigned int offset,
93 unsigned int logflags);
94 void nf_log_dump_sk_uid_gid(struct nf_log_buf *m, struct sock *sk);
95 void nf_log_dump_packet_common(struct nf_log_buf *m, u_int8_t pf,
96 unsigned int hooknum, const struct sk_buff *skb,
97 const struct net_device *in,
98 const struct net_device *out,
99 const struct nf_loginfo *loginfo,
102 #endif /* _NF_LOG_H */