target/linux/generic-2.4/patches/619-netfilter_classify.patch

   1 diff -uprN linux-2.4.32.reference/include/linux/netfilter_ipv4/ipt_CLASSIFY.h linux-2.4.32/include/linux/netfilter_ipv4/ipt_CLASSIFY.h
   2 --- linux-2.4.32.reference/include/linux/netfilter_ipv4/ipt_CLASSIFY.h  1970-01-01 01:00:00.000000000 +0100
   3 +++ linux-2.4.32/include/linux/netfilter_ipv4/ipt_CLASSIFY.h    2006-08-17 12:33:08.000000000 +0200
   4 @@ -0,0 +1,8 @@
   5 +#ifndef _IPT_CLASSIFY_H
   6 +#define _IPT_CLASSIFY_H
   7 +
   8 +struct ipt_classify_target_info {
   9 +       u_int32_t priority;
  10 +};
  11 +
  12 +#endif /*_IPT_CLASSIFY_H */
  13 diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/Config.in linux-2.4.32/net/ipv4/netfilter/Config.in
  14 --- linux-2.4.32.reference/net/ipv4/netfilter/Config.in 2006-08-17 12:28:16.000000000 +0200
  15 +++ linux-2.4.32/net/ipv4/netfilter/Config.in   2006-08-17 12:33:08.000000000 +0200
  16 @@ -172,6 +172,7 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ];
  17      dep_tristate '    DSCP target support' CONFIG_IP_NF_TARGET_DSCP $CONFIG_IP_NF_MANGLE
  18
  19      dep_tristate '    MARK target support' CONFIG_IP_NF_TARGET_MARK $CONFIG_IP_NF_MANGLE
  20 +    dep_tristate '    CLASSIFY target support (EXPERIMENTAL)' CONFIG_IP_NF_TARGET_CLASSIFY $CONFIG_IP_NF_MANGLE
  21      dep_tristate '    IMQ target support' CONFIG_IP_NF_TARGET_IMQ $CONFIG_IP_NF_MANGLE
  22    fi
  23    if [ "$CONFIG_IP_NF_CONNTRACK_MARK" != "n" ]; then
  24 diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/ipt_CLASSIFY.c linux-2.4.32/net/ipv4/netfilter/ipt_CLASSIFY.c
  25 --- linux-2.4.32.reference/net/ipv4/netfilter/ipt_CLASSIFY.c    1970-01-01 01:00:00.000000000 +0100
  26 +++ linux-2.4.32/net/ipv4/netfilter/ipt_CLASSIFY.c      2006-08-17 12:33:08.000000000 +0200
  27 @@ -0,0 +1,82 @@
  28 +/*
  29 + * This is a module which is used for setting the skb->priority field
  30 + * of an skb for qdisc classification.
  31 + */
  32 +
  33 +#include <linux/module.h>
  34 +#include <linux/skbuff.h>
  35 +#include <linux/ip.h>
  36 +#include <net/checksum.h>
  37 +
  38 +#include <linux/netfilter_ipv4/ip_tables.h>
  39 +#include <linux/netfilter_ipv4/ipt_CLASSIFY.h>
  40 +
  41 +MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
  42 +MODULE_LICENSE("GPL");
  43 +MODULE_DESCRIPTION("iptables qdisc classification target module");
  44 +
  45 +static unsigned int
  46 +target(struct sk_buff **pskb,
  47 +       unsigned int hooknum,
  48 +       const struct net_device *in,
  49 +       const struct net_device *out,
  50 +       const void *targinfo,
  51 +       void *userinfo)
  52 +{
  53 +       const struct ipt_classify_target_info *clinfo = targinfo;
  54 +
  55 +       if((*pskb)->priority != clinfo->priority) {
  56 +               (*pskb)->priority = clinfo->priority;
  57 +               (*pskb)->nfcache |= NFC_ALTERED;
  58 +       }
  59 +
  60 +       return IPT_CONTINUE;
  61 +}
  62 +
  63 +static int
  64 +checkentry(const char *tablename,
  65 +           const struct ipt_entry *e,
  66 +           void *targinfo,
  67 +           unsigned int targinfosize,
  68 +           unsigned int hook_mask)
  69 +{
  70 +       if (targinfosize != IPT_ALIGN(sizeof(struct ipt_classify_target_info))){
  71 +               printk(KERN_ERR "CLASSIFY: invalid size (%u != %u).\n",
  72 +                      targinfosize,
  73 +                      IPT_ALIGN(sizeof(struct ipt_classify_target_info)));
  74 +               return 0;
  75 +       }
  76 +
  77 +       if (hook_mask & ~(1 << NF_IP_POST_ROUTING)) {
  78 +               printk(KERN_ERR "CLASSIFY: only valid in POST_ROUTING.\n");
  79 +               return 0;
  80 +       }
  81 +
  82 +       if (strcmp(tablename, "mangle") != 0) {
  83 +               printk(KERN_WARNING "CLASSIFY: can only be called from "
  84 +                                   "\"mangle\" table, not \"%s\".\n",
  85 +                                   tablename);
  86 +               return 0;
  87 +       }
  88 +
  89 +       return 1;
  90 +}
  91 +
  92 +static struct ipt_target ipt_classify_reg
  93 += { { NULL, NULL }, "CLASSIFY", target, checkentry, NULL, THIS_MODULE };
  94 +
  95 +static int __init init(void)
  96 +{
  97 +       if (ipt_register_target(&ipt_classify_reg))
  98 +               return -EINVAL;
  99 +
 100 +       return 0;
 101 +}
 102 +
 103 +static void __exit fini(void)
 104 +{
 105 +       ipt_unregister_target(&ipt_classify_reg);
 106 +}
 107 +
 108 +module_init(init);
 109 +module_exit(fini);
 110 diff -uprN linux-2.4.32.reference/net/ipv4/netfilter/Makefile linux-2.4.32/net/ipv4/netfilter/Makefile
 111 --- linux-2.4.32.reference/net/ipv4/netfilter/Makefile  2006-08-17 12:28:16.000000000 +0200
 112 +++ linux-2.4.32/net/ipv4/netfilter/Makefile    2006-08-17 12:33:08.000000000 +0200
 113 @@ -134,6 +134,7 @@ obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_
 114
 115  # targets
 116  obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
 117 +obj-$(CONFIG_IP_NF_TARGET_CLASSIFY) += ipt_CLASSIFY.o
 118  obj-$(CONFIG_IP_NF_TARGET_MIRROR) += ipt_MIRROR.o
 119  obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
 120  obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o