41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef _IPT_HASHLIMIT_H
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#define _IPT_HASHLIMIT_H
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/* timings are in milliseconds. */
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#define IPT_HASHLIMIT_SCALE 10000
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/* 1/10,000 sec period => max of 10,000/sec. Min rate is then 429490
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seconds, or one every 59 hours. */
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/* details of this structure hidden by the implementation */
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struct ipt_hashlimit_htable;
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#define IPT_HASHLIMIT_HASH_DIP 0x0001
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#define IPT_HASHLIMIT_HASH_DPT 0x0002
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#define IPT_HASHLIMIT_HASH_SIP 0x0004
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#define IPT_HASHLIMIT_HASH_SPT 0x0008
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struct hashlimit_cfg {
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u_int32_t mode; /* bitmask of IPT_HASHLIMIT_HASH_* */
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u_int32_t avg; /* Average secs between packets * scale */
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u_int32_t burst; /* Period multiplier for upper limit. */
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/* user specified */
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u_int32_t size; /* how many buckets */
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u_int32_t max; /* max number of entries */
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u_int32_t gc_interval; /* gc interval */
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u_int32_t expire; /* when do entries expire? */
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};
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struct ipt_hashlimit_info {
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char name [IFNAMSIZ]; /* name */
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struct hashlimit_cfg cfg;
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struct ipt_hashlimit_htable *hinfo;
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/* Used internally by the kernel */
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union {
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void *ptr;
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struct ipt_hashlimit_info *master;
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} u;
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};
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#endif /*_IPT_HASHLIMIT_H*/
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