1#ifndef _IPT_DSTLIMIT_H 2#define _IPT_DSTLIMIT_H 3 4/* timings are in milliseconds. */ 5#define IPT_DSTLIMIT_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 */ 10struct ipt_dstlimit_htable; 11 12#define IPT_DSTLIMIT_HASH_DIP 0x0001 13#define IPT_DSTLIMIT_HASH_DPT 0x0002 14#define IPT_DSTLIMIT_HASH_SIP 0x0004 15 16struct dstlimit_cfg { 17 u_int32_t mode; /* bitmask of IPT_DSTLIMIT_HASH_* */ 18 u_int32_t avg; /* Average secs between packets * scale */ 19 u_int32_t burst; /* Period multiplier for upper limit. */ 20 21 /* user specified */ 22 u_int32_t size; /* how many buckets */ 23 u_int32_t max; /* max number of entries */ 24 u_int32_t gc_interval; /* gc interval */ 25 u_int32_t expire; /* when do entries expire? */ 26}; 27 28struct ipt_dstlimit_info { 29 char name [IFNAMSIZ]; /* name */ 30 struct dstlimit_cfg cfg; 31 struct ipt_dstlimit_htable *hinfo; 32 33 /* Used internally by the kernel */ 34 union { 35 void *ptr; 36 struct ipt_dstlimit_info *master; 37 } u; 38}; 39#endif /*_IPT_DSTLIMIT_H*/ 40