[deliverable/linux.git] / include / linux / netfilter / xt_hashlimit.h

#ifndef _XT_HASHLIMIT_H
#define _XT_HASHLIMIT_H

/* timings are in milliseconds. */
#define XT_HASHLIMIT_SCALE 10000
/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
   seconds, or one every 59 hours. */

/* details of this structure hidden by the implementation */
struct xt_hashlimit_htable;

enum {
	XT_HASHLIMIT_HASH_DIP = 1 << 0,
	XT_HASHLIMIT_HASH_DPT = 1 << 1,
	XT_HASHLIMIT_HASH_SIP = 1 << 2,
	XT_HASHLIMIT_HASH_SPT = 1 << 3,
	XT_HASHLIMIT_INVERT   = 1 << 4,
};

struct hashlimit_cfg {
	u_int32_t mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
	u_int32_t avg;    /* Average secs between packets * scale */
	u_int32_t burst;  /* Period multiplier for upper limit. */

	/* user specified */
	u_int32_t size;		/* how many buckets */
	u_int32_t max;		/* max number of entries */
	u_int32_t gc_interval;	/* gc interval */
	u_int32_t expire;	/* when do entries expire? */
};

struct xt_hashlimit_info {
	char name [IFNAMSIZ];		/* name */
	struct hashlimit_cfg cfg;

	/* Used internally by the kernel */
	struct xt_hashlimit_htable *hinfo;
	union {
		void *ptr;
		struct xt_hashlimit_info *master;
	} u;
};

struct hashlimit_cfg1 {
	u_int32_t mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
	u_int32_t avg;    /* Average secs between packets * scale */
	u_int32_t burst;  /* Period multiplier for upper limit. */

	/* user specified */
	u_int32_t size;		/* how many buckets */
	u_int32_t max;		/* max number of entries */
	u_int32_t gc_interval;	/* gc interval */
	u_int32_t expire;	/* when do entries expire? */

	u_int8_t srcmask, dstmask;
};

struct xt_hashlimit_mtinfo1 {
	char name[IFNAMSIZ];
	struct hashlimit_cfg1 cfg;

	/* Used internally by the kernel */
	struct xt_hashlimit_htable *hinfo __attribute__((aligned(8)));
};

#endif /*_XT_HASHLIMIT_H*/
Commit	Line	Data
39b46fc6 PM	1	#ifndef _XT_HASHLIMIT_H
	2	#define _XT_HASHLIMIT_H
	3
	4	/* timings are in milliseconds. */
	5	#define XT_HASHLIMIT_SCALE 10000
	6	/* 1/10,000 sec period => max of 10,000/sec. Min rate is then 429490
	7	seconds, or one every 59 hours. */
	8
	9	/* details of this structure hidden by the implementation */
	10	struct xt_hashlimit_htable;
	11
09e410de JE	12	enum {
	13	XT_HASHLIMIT_HASH_DIP = 1 << 0,
	14	XT_HASHLIMIT_HASH_DPT = 1 << 1,
	15	XT_HASHLIMIT_HASH_SIP = 1 << 2,
	16	XT_HASHLIMIT_HASH_SPT = 1 << 3,
	17	XT_HASHLIMIT_INVERT = 1 << 4,
	18	};
39b46fc6 PM	19
39b46fc6 PM	20	struct hashlimit_cfg {
09e410de	21	u_int32_t mode; /* bitmask of XT_HASHLIMIT_HASH_* */
39b46fc6 PM	22	u_int32_t avg; /* Average secs between packets * scale */
	23	u_int32_t burst; /* Period multiplier for upper limit. */
	24
	25	/* user specified */
	26	u_int32_t size; /* how many buckets */
	27	u_int32_t max; /* max number of entries */
	28	u_int32_t gc_interval; /* gc interval */
	29	u_int32_t expire; /* when do entries expire? */
	30	};
	31
	32	struct xt_hashlimit_info {
	33	char name [IFNAMSIZ]; /* name */
	34	struct hashlimit_cfg cfg;
39b46fc6 PM	35
39b46fc6 PM	36	/* Used internally by the kernel */
8b6f3f62	37	struct xt_hashlimit_htable *hinfo;
39b46fc6 PM	38	union {
	39	void *ptr;
	40	struct xt_hashlimit_info *master;
	41	} u;
	42	};
09e410de JE	43
	44	struct hashlimit_cfg1 {
	45	u_int32_t mode; /* bitmask of XT_HASHLIMIT_HASH_* */
	46	u_int32_t avg; /* Average secs between packets * scale */
	47	u_int32_t burst; /* Period multiplier for upper limit. */
	48
	49	/* user specified */
	50	u_int32_t size; /* how many buckets */
	51	u_int32_t max; /* max number of entries */
	52	u_int32_t gc_interval; /* gc interval */
	53	u_int32_t expire; /* when do entries expire? */
	54
	55	u_int8_t srcmask, dstmask;
	56	};
	57
	58	struct xt_hashlimit_mtinfo1 {
	59	char name[IFNAMSIZ];
	60	struct hashlimit_cfg1 cfg;
	61
	62	/* Used internally by the kernel */
	63	struct xt_hashlimit_htable *hinfo __attribute__((aligned(8)));
09e410de JE	64	};
09e410de JE	65
39b46fc6	66	#endif /_XT_HASHLIMIT_H/