summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorHarald Welte <laforge@gnumonks.org>2004-10-20 14:06:58 +0000
committerHarald Welte <laforge@gnumonks.org>2004-10-20 14:06:58 +0000
commita5374b239be6d8afdcd7fdd54b9483ffa1d5444d (patch)
tree97fe0e4a33f43d15001e1681bf11a0ede23a350a
parent77e2ecac2ad27fa93a99363279f015ce7b0ee114 (diff)
add hashlimit kernel header file
-rw-r--r--include/ipt_hashlimit.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/ipt_hashlimit.h b/include/ipt_hashlimit.h
new file mode 100644
index 00000000..ac2cb64e
--- /dev/null
+++ b/include/ipt_hashlimit.h
@@ -0,0 +1,40 @@
+#ifndef _IPT_HASHLIMIT_H
+#define _IPT_HASHLIMIT_H
+
+/* timings are in milliseconds. */
+#define IPT_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 ipt_hashlimit_htable;
+
+#define IPT_HASHLIMIT_HASH_DIP 0x0001
+#define IPT_HASHLIMIT_HASH_DPT 0x0002
+#define IPT_HASHLIMIT_HASH_SIP 0x0004
+#define IPT_HASHLIMIT_HASH_SPT 0x0008
+
+struct hashlimit_cfg {
+ u_int32_t mode; /* bitmask of IPT_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 ipt_hashlimit_info {
+ char name [IFNAMSIZ]; /* name */
+ struct hashlimit_cfg cfg;
+ struct ipt_hashlimit_htable *hinfo;
+
+ /* Used internally by the kernel */
+ union {
+ void *ptr;
+ struct ipt_hashlimit_info *master;
+ } u;
+};
+#endif /*_IPT_HASHLIMIT_H*/