iptables-imq.patch

   1 diff -Naur iptables-1.4.12.1/extensions/libxt_IMQ.c iptables-1.4.12.1-imq/extensions/libxt_IMQ.c
   2 --- iptables-1.4.12.1/extensions/libxt_IMQ.c    1970-01-01 02:00:00.000000000 +0200
   3 +++ iptables-1.4.12.1-imq/extensions/libxt_IMQ.c        2011-09-30 13:53:21.000000000 +0300
   4 @@ -0,0 +1,105 @@
   5 +/* Shared library add-on to iptables to add IMQ target support. */
   6 +#include <stdio.h>
   7 +#include <string.h>
   8 +#include <stdlib.h>
   9 +#include <getopt.h>
  10 +
  11 +#include <xtables.h>
  12 +#include <linux/netfilter/x_tables.h>
  13 +#include <linux/netfilter/xt_IMQ.h>
  14 +
  15 +/* Function which prints out usage message. */
  16 +static void IMQ_help(void)
  17 +{
  18 +       printf(
  19 +"IMQ target options:\n"
  20 +"  --todev <N>         enqueue to imq<N>, defaults to 0\n");
  21 +
  22 +}
  23 +
  24 +static struct option IMQ_opts[] = {
  25 +       { "todev", 1, 0, '1' },
  26 +       { 0 }
  27 +};
  28 +
  29 +/* Initialize the target. */
  30 +static void IMQ_init(struct xt_entry_target *t)
  31 +{
  32 +       struct xt_imq_info *mr = (struct xt_imq_info*)t->data;
  33 +
  34 +       mr->todev = 0;
  35 +}
  36 +
  37 +/* Function which parses command options; returns true if it
  38 +   ate an option */
  39 +static int IMQ_parse(int c, char **argv, int invert, unsigned int *flags,
  40 +      const void *entry, struct xt_entry_target **target)
  41 +{
  42 +       struct xt_imq_info *mr = (struct xt_imq_info*)(*target)->data;
  43 +
  44 +       switch(c) {
  45 +       case '1':
  46 +/*             if (xtables_check_inverse(optarg, &invert, NULL, 0, argv))
  47 +                       xtables_error(PARAMETER_PROBLEM,
  48 +                                  "Unexpected `!' after --todev");
  49 +*/
  50 +               mr->todev=atoi(optarg);
  51 +               break;
  52 +
  53 +       default:
  54 +               return 0;
  55 +       }
  56 +       return 1;
  57 +}
  58 +
  59 +/* Prints out the targinfo. */
  60 +static void IMQ_print(const void *ip,
  61 +      const struct xt_entry_target *target,
  62 +      int numeric)
  63 +{
  64 +       struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
  65 +
  66 +       printf("IMQ: todev %u ", mr->todev);
  67 +}
  68 +
  69 +/* Saves the union ipt_targinfo in parsable form to stdout. */
  70 +static void IMQ_save(const void *ip, const struct xt_entry_target *target)
  71 +{
  72 +       struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
  73 +
  74 +       printf(" --todev %u", mr->todev);
  75 +}
  76 +
  77 +static struct xtables_target imq_target = {
  78 +       .name           = "IMQ",
  79 +       .version        = XTABLES_VERSION,
  80 +       .family         = NFPROTO_IPV4,
  81 +       .size           = XT_ALIGN(sizeof(struct xt_imq_info)),
  82 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_imq_info)),
  83 +       .help           = IMQ_help,
  84 +       .init           = IMQ_init,
  85 +       .parse          = IMQ_parse,
  86 +       .print          = IMQ_print,
  87 +       .save           = IMQ_save,
  88 +       .extra_opts     = IMQ_opts,
  89 +};
  90 +
  91 +static struct xtables_target imq_target6 = {
  92 +       .name           = "IMQ",
  93 +       .version        = XTABLES_VERSION,
  94 +       .family         = NFPROTO_IPV6,
  95 +       .size           = XT_ALIGN(sizeof(struct xt_imq_info)),
  96 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_imq_info)),
  97 +       .help           = IMQ_help,
  98 +       .init           = IMQ_init,
  99 +       .parse          = IMQ_parse,
 100 +       .print          = IMQ_print,
 101 +       .save           = IMQ_save,
 102 +       .extra_opts     = IMQ_opts,
 103 +};
 104 +
 105 +// void __attribute((constructor)) nf_ext_init(void){
 106 +void _init(void){
 107 +       xtables_register_target(&imq_target);
 108 +       xtables_register_target(&imq_target6);
 109 +}
 110 diff -Naur iptables-1.4.12.1/extensions/libxt_IMQ.man iptables-1.4.12.1-imq/extensions/libxt_IMQ.man
 111 --- iptables-1.4.12.1/extensions/libxt_IMQ.man  1970-01-01 02:00:00.000000000 +0200
 112 +++ iptables-1.4.12.1-imq/extensions/libxt_IMQ.man      2011-09-30 13:53:21.000000000 +0300
 113 @@ -0,0 +1,15 @@
 114 +This target is used to redirect the traffic to the IMQ driver and you can apply
 115 +QoS rules like HTB or CBQ.
 116 +For example you can select only traffic comming from a specific interface or
 117 +is going out on a specific interface.
 118 +Also it permits to capture the traffic BEFORE NAT in the case of outgoing traffic
 119 +or AFTER NAT in the case of incomming traffic.
 120 +.TP
 121 +\fB\-\-to\-dev\fP \fIvalue\fP
 122 +Set the IMQ interface where to send this traffic
 123 +.TP
 124 +Example:
 125 +.TP
 126 +Redirect incomming traffic from interface eth0 to imq0 and outgoing traffic to imq1:
 127 +iptables \-t mangle \-A FORWARD \-i eth0 \-j IMQ \-\-to\-dev 0
 128 +iptables \-t mangle \-A FORWARD \-o eth0 \-j IMQ \-\-to\-dev 1
 129 diff -Naur iptables-1.4.12.1/include/linux/netfilter/xt_IMQ.h iptables-1.4.12.1-imq/include/linux/netfilter/xt_IMQ.h
 130 --- iptables-1.4.12.1/include/linux/netfilter/xt_IMQ.h  1970-01-01 02:00:00.000000000 +0200
 131 +++ iptables-1.4.12.1-imq/include/linux/netfilter/xt_IMQ.h      2011-09-30 13:53:21.000000000 +0300
 132 @@ -0,0 +1,9 @@
 133 +#ifndef _XT_IMQ_H
 134 +#define _XT_IMQ_H
 135 +
 136 +struct xt_imq_info {
 137 +       unsigned int todev;     /* target imq device */
 138 +};
 139 +
 140 +#endif /* _XT_IMQ_H */
 141 +