123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112 |
- #ifndef _NF_LOG_H
- #define _NF_LOG_H
- #include <linux/netfilter.h>
- /* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
- * disappear once iptables is replaced with pkttables. Please DO NOT use them
- * for any new code! */
- #define NF_LOG_TCPSEQ 0x01 /* Log TCP sequence numbers */
- #define NF_LOG_TCPOPT 0x02 /* Log TCP options */
- #define NF_LOG_IPOPT 0x04 /* Log IP options */
- #define NF_LOG_UID 0x08 /* Log UID owning local socket */
- #define NF_LOG_MASK 0x0f
- enum nf_log_type {
- NF_LOG_TYPE_LOG = 0,
- NF_LOG_TYPE_ULOG,
- NF_LOG_TYPE_MAX
- };
- struct nf_loginfo {
- u_int8_t type;
- union {
- struct {
- u_int32_t copy_len;
- u_int16_t group;
- u_int16_t qthreshold;
- } ulog;
- struct {
- u_int8_t level;
- u_int8_t logflags;
- } log;
- } u;
- };
- typedef void nf_logfn(struct net *net,
- u_int8_t pf,
- unsigned int hooknum,
- const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *li,
- const char *prefix);
- struct nf_logger {
- char *name;
- enum nf_log_type type;
- nf_logfn *logfn;
- struct module *me;
- };
- /* Function to register/unregister log function. */
- int nf_log_register(u_int8_t pf, struct nf_logger *logger);
- void nf_log_unregister(struct nf_logger *logger);
- void nf_log_set(struct net *net, u_int8_t pf,
- const struct nf_logger *logger);
- void nf_log_unset(struct net *net, const struct nf_logger *logger);
- int nf_log_bind_pf(struct net *net, u_int8_t pf,
- const struct nf_logger *logger);
- void nf_log_unbind_pf(struct net *net, u_int8_t pf);
- int nf_logger_find_get(int pf, enum nf_log_type type);
- void nf_logger_put(int pf, enum nf_log_type type);
- void nf_logger_request_module(int pf, enum nf_log_type type);
- #define MODULE_ALIAS_NF_LOGGER(family, type) \
- MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type))
- /* Calls the registered backend logging function */
- __printf(8, 9)
- void nf_log_packet(struct net *net,
- u_int8_t pf,
- unsigned int hooknum,
- const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *li,
- const char *fmt, ...);
- __printf(8, 9)
- void nf_log_trace(struct net *net,
- u_int8_t pf,
- unsigned int hooknum,
- const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *li,
- const char *fmt, ...);
- struct nf_log_buf;
- struct nf_log_buf *nf_log_buf_open(void);
- __printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...);
- void nf_log_buf_close(struct nf_log_buf *m);
- /* common logging functions */
- int nf_log_dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb,
- u8 proto, int fragment, unsigned int offset);
- int nf_log_dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb,
- u8 proto, int fragment, unsigned int offset,
- unsigned int logflags);
- void nf_log_dump_sk_uid_gid(struct nf_log_buf *m, struct sock *sk);
- void nf_log_dump_packet_common(struct nf_log_buf *m, u_int8_t pf,
- unsigned int hooknum, const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *loginfo,
- const char *prefix);
- #endif /* _NF_LOG_H */
|