189 lines
5.0 KiB
Diff
189 lines
5.0 KiB
Diff
diff -ruN ipset-2.2.9a.orig/ipset_iphash.c ipset-2.2.9a/ipset_iphash.c
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--- ipset-2.2.9a.orig/ipset_iphash.c 2006-10-06 03:41:17.000000000 -0500
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+++ ipset-2.2.9a/ipset_iphash.c 2007-07-11 10:10:54.349001865 -0500
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@@ -28,7 +28,7 @@
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#include <asm/types.h>
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#include <linux/netfilter_ipv4/ip_set_iphash.h>
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-#include <linux/netfilter_ipv4/ip_set_jhash.h>
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+#include "ip_set_jhash.h"
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#include "ipset.h"
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diff -ruN ipset-2.2.9a.orig/ipset_ipporthash.c ipset-2.2.9a/ipset_ipporthash.c
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--- ipset-2.2.9a.orig/ipset_ipporthash.c 2006-10-06 03:41:26.000000000 -0500
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+++ ipset-2.2.9a/ipset_ipporthash.c 2007-07-11 10:10:54.345001638 -0500
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@@ -28,7 +28,7 @@
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#include <asm/types.h>
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#include <linux/netfilter_ipv4/ip_set_ipporthash.h>
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-#include <linux/netfilter_ipv4/ip_set_jhash.h>
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+#include "ip_set_jhash.h"
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#include "ipset.h"
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diff -ruN ipset-2.2.9a.orig/ip_set_jhash.h ipset-2.2.9a/ip_set_jhash.h
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--- ipset-2.2.9a.orig/ip_set_jhash.h 1969-12-31 18:00:00.000000000 -0600
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+++ ipset-2.2.9a/ip_set_jhash.h 2007-07-11 10:10:33.711825818 -0500
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@@ -0,0 +1,148 @@
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+#ifndef _LINUX_IPSET_JHASH_H
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+#define _LINUX_IPSET_JHASH_H
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+
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+/* This is a copy of linux/jhash.h but the types u32/u8 are changed
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+ * to __u32/__u8 so that the header file can be included into
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+ * userspace code as well. Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
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+ */
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+
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+/* jhash.h: Jenkins hash support.
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+ *
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+ * Copyright (C) 1996 Bob Jenkins (bob_jenkins@burtleburtle.net)
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+ *
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+ * http://burtleburtle.net/bob/hash/
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+ *
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+ * These are the credits from Bob's sources:
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+ *
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+ * lookup2.c, by Bob Jenkins, December 1996, Public Domain.
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+ * hash(), hash2(), hash3, and mix() are externally useful functions.
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+ * Routines to test the hash are included if SELF_TEST is defined.
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+ * You can use this free for any purpose. It has no warranty.
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+ *
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+ * Copyright (C) 2003 David S. Miller (davem@redhat.com)
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+ *
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+ * I've modified Bob's hash to be useful in the Linux kernel, and
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+ * any bugs present are surely my fault. -DaveM
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+ */
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+
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+/* NOTE: Arguments are modified. */
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+#define __jhash_mix(a, b, c) \
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+{ \
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+ a -= b; a -= c; a ^= (c>>13); \
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+ b -= c; b -= a; b ^= (a<<8); \
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+ c -= a; c -= b; c ^= (b>>13); \
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+ a -= b; a -= c; a ^= (c>>12); \
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+ b -= c; b -= a; b ^= (a<<16); \
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+ c -= a; c -= b; c ^= (b>>5); \
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+ a -= b; a -= c; a ^= (c>>3); \
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+ b -= c; b -= a; b ^= (a<<10); \
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+ c -= a; c -= b; c ^= (b>>15); \
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+}
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+
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+/* The golden ration: an arbitrary value */
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+#define JHASH_GOLDEN_RATIO 0x9e3779b9
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+
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+/* The most generic version, hashes an arbitrary sequence
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+ * of bytes. No alignment or length assumptions are made about
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+ * the input key.
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+ */
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+static inline __u32 jhash(void *key, __u32 length, __u32 initval)
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+{
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+ __u32 a, b, c, len;
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+ __u8 *k = key;
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+
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+ len = length;
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+ a = b = JHASH_GOLDEN_RATIO;
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+ c = initval;
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+
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+ while (len >= 12) {
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+ a += (k[0] +((__u32)k[1]<<8) +((__u32)k[2]<<16) +((__u32)k[3]<<24));
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+ b += (k[4] +((__u32)k[5]<<8) +((__u32)k[6]<<16) +((__u32)k[7]<<24));
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+ c += (k[8] +((__u32)k[9]<<8) +((__u32)k[10]<<16)+((__u32)k[11]<<24));
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+
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+ __jhash_mix(a,b,c);
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+
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+ k += 12;
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+ len -= 12;
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+ }
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+
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+ c += length;
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+ switch (len) {
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+ case 11: c += ((__u32)k[10]<<24);
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+ case 10: c += ((__u32)k[9]<<16);
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+ case 9 : c += ((__u32)k[8]<<8);
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+ case 8 : b += ((__u32)k[7]<<24);
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+ case 7 : b += ((__u32)k[6]<<16);
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+ case 6 : b += ((__u32)k[5]<<8);
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+ case 5 : b += k[4];
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+ case 4 : a += ((__u32)k[3]<<24);
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+ case 3 : a += ((__u32)k[2]<<16);
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+ case 2 : a += ((__u32)k[1]<<8);
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+ case 1 : a += k[0];
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+ };
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+
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+ __jhash_mix(a,b,c);
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+
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+ return c;
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+}
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+
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+/* A special optimized version that handles 1 or more of __u32s.
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+ * The length parameter here is the number of __u32s in the key.
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+ */
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+static inline __u32 jhash2(__u32 *k, __u32 length, __u32 initval)
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+{
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+ __u32 a, b, c, len;
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+
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+ a = b = JHASH_GOLDEN_RATIO;
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+ c = initval;
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+ len = length;
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+
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+ while (len >= 3) {
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+ a += k[0];
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+ b += k[1];
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+ c += k[2];
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+ __jhash_mix(a, b, c);
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+ k += 3; len -= 3;
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+ }
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+
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+ c += length * 4;
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+
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+ switch (len) {
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+ case 2 : b += k[1];
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+ case 1 : a += k[0];
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+ };
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+
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+ __jhash_mix(a,b,c);
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+
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+ return c;
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+}
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+
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+
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+/* A special ultra-optimized versions that knows they are hashing exactly
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+ * 3, 2 or 1 word(s).
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+ *
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+ * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally
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+ * done at the end is not done here.
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+ */
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+static inline __u32 jhash_3words(__u32 a, __u32 b, __u32 c, __u32 initval)
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+{
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+ a += JHASH_GOLDEN_RATIO;
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+ b += JHASH_GOLDEN_RATIO;
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+ c += initval;
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+
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+ __jhash_mix(a, b, c);
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+
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+ return c;
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+}
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+
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+static inline __u32 jhash_2words(__u32 a, __u32 b, __u32 initval)
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+{
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+ return jhash_3words(a, b, 0, initval);
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+}
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+
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+static inline __u32 jhash_1word(__u32 a, __u32 initval)
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+{
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+ return jhash_3words(a, 0, 0, initval);
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+}
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+
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+#endif /* _LINUX_IPSET_JHASH_H */
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diff -ruN ipset-2.2.9a.orig/ipset_nethash.c ipset-2.2.9a/ipset_nethash.c
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--- ipset-2.2.9a.orig/ipset_nethash.c 2006-10-06 03:41:46.000000000 -0500
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+++ ipset-2.2.9a/ipset_nethash.c 2007-07-11 10:10:54.369003006 -0500
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@@ -28,7 +28,7 @@
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#include <asm/types.h>
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#include <linux/netfilter_ipv4/ip_set_nethash.h>
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-#include <linux/netfilter_ipv4/ip_set_jhash.h>
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+#include "ip_set_jhash.h"
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#include "ipset.h"
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