cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / netfilter / xt_hashlimit.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/netfilter/xt_hashlimit.h b/i686-linux-gnu-4.7/usr/include/linux/netfilter/xt_hashlimit.h
new file mode 100644 (file)
index 0000000..d0000e3
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/netfilter/xt_hashlimit.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _XT_HASHLIMIT_H
+#define _XT_HASHLIMIT_H
+
+#include <linux/types.h>
+#include <linux/limits.h>
+#include <linux/if.h>
+
+/* timings are in milliseconds. */
+#define XT_HASHLIMIT_SCALE 10000
+#define XT_HASHLIMIT_SCALE_v2 1000000llu
+/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
+ * seconds, or one packet every 59 hours.
+ */
+
+/* packet length accounting is done in 16-byte steps */
+#define XT_HASHLIMIT_BYTE_SHIFT 4
+
+/* 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,
+       XT_HASHLIMIT_BYTES              = 1 << 5,
+       XT_HASHLIMIT_RATE_MATCH         = 1 << 6,
+};
+
+struct hashlimit_cfg {
+       __u32 mode;       /* bitmask of XT_HASHLIMIT_HASH_* */
+       __u32 avg;    /* Average secs between packets * scale */
+       __u32 burst;  /* Period multiplier for upper limit. */
+
+       /* user specified */
+       __u32 size;             /* how many buckets */
+       __u32 max;              /* max number of entries */
+       __u32 gc_interval;      /* gc interval */
+       __u32 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 {
+       __u32 mode;       /* bitmask of XT_HASHLIMIT_HASH_* */
+       __u32 avg;    /* Average secs between packets * scale */
+       __u32 burst;  /* Period multiplier for upper limit. */
+
+       /* user specified */
+       __u32 size;             /* how many buckets */
+       __u32 max;              /* max number of entries */
+       __u32 gc_interval;      /* gc interval */
+       __u32 expire;   /* when do entries expire? */
+
+       __u8 srcmask, dstmask;
+};
+
+struct hashlimit_cfg2 {
+       __u64 avg;              /* Average secs between packets * scale */
+       __u64 burst;            /* Period multiplier for upper limit. */
+       __u32 mode;             /* bitmask of XT_HASHLIMIT_HASH_* */
+
+       /* user specified */
+       __u32 size;             /* how many buckets */
+       __u32 max;              /* max number of entries */
+       __u32 gc_interval;      /* gc interval */
+       __u32 expire;           /* when do entries expire? */
+
+       __u8 srcmask, dstmask;
+};
+
+struct hashlimit_cfg3 {
+       __u64 avg;              /* Average secs between packets * scale */
+       __u64 burst;            /* Period multiplier for upper limit. */
+       __u32 mode;             /* bitmask of XT_HASHLIMIT_HASH_* */
+
+       /* user specified */
+       __u32 size;             /* how many buckets */
+       __u32 max;              /* max number of entries */
+       __u32 gc_interval;      /* gc interval */
+       __u32 expire;           /* when do entries expire? */
+
+       __u32 interval;
+       __u8 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)));
+};
+
+struct xt_hashlimit_mtinfo2 {
+       char name[NAME_MAX];
+       struct hashlimit_cfg2 cfg;
+
+       /* Used internally by the kernel */
+       struct xt_hashlimit_htable *hinfo __attribute__((aligned(8)));
+};
+
+struct xt_hashlimit_mtinfo3 {
+       char name[NAME_MAX];
+       struct hashlimit_cfg3 cfg;
+
+       /* Used internally by the kernel */
+       struct xt_hashlimit_htable *hinfo __attribute__((aligned(8)));
+};
+
+#endif /* _XT_HASHLIMIT_H */