Merge commit 'origin/trunk@12184' into fedora

[iptables.git] / trunk / include / linux / netfilter / xt_hashlimit.h

diff --git a/trunk/include/linux/netfilter/xt_hashlimit.h b/trunk/include/linux/netfilter/xt_hashlimit.h
new file mode 100644 (file)
index 0000000..51b18d8
--- /dev/null
+++ b/trunk/include/linux/netfilter/xt_hashlimit.h
@@ -0,0 +1,66 @@
+#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*/