[mirror_ubuntu-focal-kernel.git] / include / net / netfilter / nf_log.h

#ifndef _NF_LOG_H
#define _NF_LOG_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

#define NF_LOG_TYPE_LOG		0x01
#define NF_LOG_TYPE_ULOG	0x02

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(unsigned int 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 {
	struct module	*me;
	nf_logfn 	*logfn;
	char		*name;
};

/* Function to register/unregister log function. */
int nf_log_register(int pf, struct nf_logger *logger);
void nf_log_unregister(struct nf_logger *logger);
void nf_log_unregister_pf(int pf);

/* Calls the registered backend logging function */
void nf_log_packet(int pf,
		   unsigned int hooknum,
		   const struct sk_buff *skb,
		   const struct net_device *in,
		   const struct net_device *out,
		   struct nf_loginfo *li,
		   const char *fmt, ...);

#endif /* _NF_LOG_H */
Commit	Line	Data
f01ffbd6 PM	1	#ifndef _NF_LOG_H
	2	#define _NF_LOG_H
	3
	4	/* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
	5	* disappear once iptables is replaced with pkttables. Please DO NOT use them
	6	* for any new code! */
	7	#define NF_LOG_TCPSEQ 0x01 /* Log TCP sequence numbers */
	8	#define NF_LOG_TCPOPT 0x02 /* Log TCP options */
	9	#define NF_LOG_IPOPT 0x04 /* Log IP options */
	10	#define NF_LOG_UID 0x08 /* Log UID owning local socket */
	11	#define NF_LOG_MASK 0x0f
	12
	13	#define NF_LOG_TYPE_LOG 0x01
	14	#define NF_LOG_TYPE_ULOG 0x02
	15
	16	struct nf_loginfo {
	17	u_int8_t type;
	18	union {
	19	struct {
	20	u_int32_t copy_len;
	21	u_int16_t group;
	22	u_int16_t qthreshold;
	23	} ulog;
	24	struct {
	25	u_int8_t level;
	26	u_int8_t logflags;
	27	} log;
	28	} u;
	29	};
	30
	31	typedef void nf_logfn(unsigned int pf,
	32	unsigned int hooknum,
	33	const struct sk_buff *skb,
	34	const struct net_device *in,
	35	const struct net_device *out,
	36	const struct nf_loginfo *li,
	37	const char *prefix);
	38
	39	struct nf_logger {
	40	struct module *me;
	41	nf_logfn *logfn;
	42	char *name;
	43	};
	44
	45	/* Function to register/unregister log function. */
	46	int nf_log_register(int pf, struct nf_logger *logger);
	47	void nf_log_unregister(struct nf_logger *logger);
	48	void nf_log_unregister_pf(int pf);
	49
	50	/* Calls the registered backend logging function */
	51	void nf_log_packet(int pf,
	52	unsigned int hooknum,
	53	const struct sk_buff *skb,
	54	const struct net_device *in,
	55	const struct net_device *out,
	56	struct nf_loginfo *li,
	57	const char *fmt, ...);
	58
	59	#endif /* _NF_LOG_H */