7d9904c260
By allocating ->hinfo, we already have the needed indirection to cope with the per-cpu xtables struct match_entry. [Patrick: do this now before the revision 1 struct is used by userspace] Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
#ifndef _XT_HASHLIMIT_H
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#define _XT_HASHLIMIT_H
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/* timings are in milliseconds. */
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#define XT_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 xt_hashlimit_htable;
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enum {
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XT_HASHLIMIT_HASH_DIP = 1 << 0,
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XT_HASHLIMIT_HASH_DPT = 1 << 1,
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XT_HASHLIMIT_HASH_SIP = 1 << 2,
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XT_HASHLIMIT_HASH_SPT = 1 << 3,
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XT_HASHLIMIT_INVERT = 1 << 4,
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};
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struct hashlimit_cfg {
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u_int32_t mode; /* bitmask of XT_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 xt_hashlimit_info {
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char name [IFNAMSIZ]; /* name */
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struct hashlimit_cfg cfg;
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/* Used internally by the kernel */
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struct xt_hashlimit_htable *hinfo;
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union {
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void *ptr;
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struct xt_hashlimit_info *master;
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} u;
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};
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struct hashlimit_cfg1 {
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u_int32_t mode; /* bitmask of XT_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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u_int8_t srcmask, dstmask;
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};
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struct xt_hashlimit_mtinfo1 {
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char name[IFNAMSIZ];
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struct hashlimit_cfg1 cfg;
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/* Used internally by the kernel */
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struct xt_hashlimit_htable *hinfo __attribute__((aligned(8)));
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};
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#endif /*_XT_HASHLIMIT_H*/
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