Lines Matching defs:*
0 /* Shared library add-on to iptables for DSCP
3 * (C) 2000- 2002 by Matthew G. Marsh <mgm@paktronix.com>,
4 * Harald Welte <laforge@gnumonks.org>
6 * This program is distributed under the terms of GNU GPL v2, 1991
8 * libipt_DSCP.c borrowed heavily from libipt_TOS.c
10 * --set-class added by Iain Barnes
12 #include <stdio.h>
13 #include <string.h>
14 #include <xtables.h>
15 #include <linux/netfilter/xt_DSCP.h>
17 /* This is evil, but it's my code - HW*/
18 #include "dscp_helper.c"
20 enum {
21 O_SET_DSCP = 0,
22 O_SET_DSCP_CLASS,
23 F_SET_DSCP = 1 << O_SET_DSCP,
24 F_SET_DSCP_CLASS = 1 << O_SET_DSCP_CLASS,
27 static void DSCP_help(void)
29 printf(
30 "DSCP target options\n"
31 " --set-dscp value Set DSCP field in packet header to value\n"
32 " This value can be in decimal (ex: 32)\n"
33 " or in hex (ex: 0x20)\n"
34 " --set-dscp-class class Set the DSCP field in packet header to the\n"
35 " value represented by the DiffServ class value.\n"
36 " This class may be EF,BE or any of the CSxx\n"
37 " or AFxx classes.\n"
38 "\n"
39 " These two options are mutually exclusive !\n"
43 static const struct xt_option_entry DSCP_opts[] = {
44 {.name = "set-dscp", .id = O_SET_DSCP, .excl = F_SET_DSCP_CLASS,
45 .type = XTTYPE_UINT8, .min = 0, .max = XT_DSCP_MAX,
46 .flags = XTOPT_PUT,
47 XTOPT_POINTER(struct xt_DSCP_info, dscp)},
48 {.name = "set-dscp-class", .id = O_SET_DSCP_CLASS, .excl = F_SET_DSCP,
49 .type = XTTYPE_STRING},
50 XTOPT_TABLEEND,
53 static void DSCP_parse(struct xt_option_call *cb)
55 struct xt_DSCP_info *dinfo = cb->data;
57 xtables_option_parse(cb);
58 switch (cb->entry->id) {
59 case O_SET_DSCP_CLASS:
60 dinfo->dscp = class_to_dscp(cb->arg);
61 break;
65 static void DSCP_check(struct xt_fcheck_call *cb)
67 if (cb->xflags == 0)
68 xtables_error(PARAMETER_PROBLEM,
69 "DSCP target: Parameter --set-dscp is required");
72 static void
73 print_dscp(uint8_t dscp, int numeric)
75 printf(" 0x%02x", dscp);
78 static void DSCP_print(const void *ip, const struct xt_entry_target *target,
79 int numeric)
81 const struct xt_DSCP_info *dinfo =
82 (const struct xt_DSCP_info *)target->data;
83 printf(" DSCP set");
84 print_dscp(dinfo->dscp, numeric);
87 static void DSCP_save(const void *ip, const struct xt_entry_target *target)
89 const struct xt_DSCP_info *dinfo =
90 (const struct xt_DSCP_info *)target->data;
92 printf(" --set-dscp 0x%02x", dinfo->dscp);
95 static struct xtables_target dscp_target = {
96 .family = NFPROTO_UNSPEC,
97 .name = "DSCP",
98 .version = XTABLES_VERSION,
99 .size = XT_ALIGN(sizeof(struct xt_DSCP_info)),
100 .userspacesize = XT_ALIGN(sizeof(struct xt_DSCP_info)),
101 .help = DSCP_help,
102 .print = DSCP_print,
103 .save = DSCP_save,
104 .x6_parse = DSCP_parse,
105 .x6_fcheck = DSCP_check,
106 .x6_options = DSCP_opts,
109 void _init(void)
111 xtables_register_target(&dscp_target);