root/include/linux/netfilter/xt_limit.h

INCLUDED FROM

#ifndef _XT_RATE_H
#define _XT_RATE_H

/* timings are in milliseconds. */
#define XT_LIMIT_SCALE 10000

/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
   seconds, or one every 59 hours. */
struct xt_rateinfo {
        u_int32_t avg;    /* Average secs between packets * scale */
        u_int32_t burst;  /* Period multiplier for upper limit. */

        /* Used internally by the kernel */
        unsigned long prev;
        u_int32_t credit;
        u_int32_t credit_cap, cost;

        /* Ugly, ugly fucker. */
        struct xt_rateinfo *master;
};
#endif /*_XT_RATE_H*/