iptables-imq.patch

   1 diff -Naurw /dev/null extensions/libxt_IMQ.c
   2 --- /dev/null                   1969-12-31 21:00:00.000000000 -0300
   3 +++ extensions/libxt_IMQ.c      2008-06-24 22:31:02.000000000 -0300
   4 @@ -0,0 +1,103 @@
   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 +               mr->todev=atoi(optarg);
  50 +               break;
  51 +       default:
  52 +               return 0;
  53 +       }
  54 +       return 1;
  55 +}
  56 +
  57 +/* Prints out the targinfo. */
  58 +static void IMQ_print(const void *ip,
  59 +      const struct xt_entry_target *target,
  60 +      int numeric)
  61 +{
  62 +       struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
  63 +
  64 +       printf("IMQ: todev %u ", mr->todev);
  65 +}
  66 +
  67 +/* Saves the union ipt_targinfo in parsable form to stdout. */
  68 +static void IMQ_save(const void *ip, const struct xt_entry_target *target)
  69 +{
  70 +       struct xt_imq_info *mr = (struct xt_imq_info*)target->data;
  71 +
  72 +       printf("--todev %u", mr->todev);
  73 +}
  74 +
  75 +static struct xtables_target imq_target = {
  76 +       .name           = "IMQ",
  77 +       .version        = XTABLES_VERSION,
  78 +       .family         = NFPROTO_IPV4,
  79 +       .size           = XT_ALIGN(sizeof(struct xt_imq_info)),
  80 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_imq_info)),
  81 +       .help           = IMQ_help,
  82 +       .init           = IMQ_init,
  83 +       .parse          = IMQ_parse,
  84 +       .print          = IMQ_print,
  85 +       .save           = IMQ_save,
  86 +       .extra_opts     = IMQ_opts,
  87 +};
  88 +
  89 +static struct xtables_target imq_target6 = {
  90 +       .name           = "IMQ",
  91 +       .version        = XTABLES_VERSION,
  92 +       .family         = NFPROTO_IPV6,
  93 +       .size           = XT_ALIGN(sizeof(struct xt_imq_info)),
  94 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_imq_info)),
  95 +       .help           = IMQ_help,
  96 +       .init           = IMQ_init,
  97 +       .parse          = IMQ_parse,
  98 +       .print          = IMQ_print,
  99 +       .save           = IMQ_save,
 100 +       .extra_opts     = IMQ_opts,
 101 +};
 102 +
 103 +// void __attribute((constructor)) nf_ext_init(void){
 104 +void _init(void){
 105 +       xtables_register_target(&imq_target);
 106 +       xtables_register_target(&imq_target6);
 107 +}
 108 diff -Naurw /dev/null extensions/libxt_IMQ.c
 109 --- /dev/null                           1970-01-01 02:00:00.000000000 +0200
 110 +++ include/linux/netfilter/xt_IMQ.h    2008-08-05 00:41:28.000000000 +0300
 111 @@ -0,0 +1,9 @@
 112 +#ifndef _XT_IMQ_H
 113 +#define _XT_IMQ_H
 114 +
 115 +struct xt_imq_info {
 116 +       unsigned int todev;     /* target imq device */
 117 +};
 118 +
 119 +#endif /* _XT_IMQ_H */
 120 +