diff options
Diffstat (limited to 'extensions/libipt_dscp.c')
| -rw-r--r-- | extensions/libipt_dscp.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/extensions/libipt_dscp.c b/extensions/libipt_dscp.c deleted file mode 100644 index 6a8cac8..0000000 --- a/extensions/libipt_dscp.c +++ /dev/null @@ -1,172 +0,0 @@ -/* Shared library add-on to iptables for DSCP - * - * (C) 2002 by Harald Welte <laforge@gnumonks.org> - * - * This program is distributed under the terms of GNU GPL v2, 1991 - * - * libipt_dscp.c borrowed heavily from libipt_tos.c - * - * --class support added by Iain Barnes - * - * For a list of DSCP codepoints see - * http://www.iana.org/assignments/dscp-registry - * - */ -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <getopt.h> - -#include <iptables.h> -#include <linux/netfilter_ipv4/ip_tables.h> -#include <linux/netfilter_ipv4/ipt_dscp.h> - -/* This is evil, but it's my code - HW*/ -#include "libipt_dscp_helper.c" - -static void help(void) -{ - printf( -"DSCP match v%s options\n" -"[!] --dscp value Match DSCP codepoint with numerical value\n" -" This value can be in decimal (ex: 32)\n" -" or in hex (ex: 0x20)\n" -"[!] --dscp-class name Match the DiffServ class. This value may\n" -" be any of the BE,EF, AFxx or CSx classes\n" -"\n" -" These two options are mutually exclusive !\n" - , IPTABLES_VERSION -); -} - -static struct option opts[] = { - { "dscp", 1, 0, 'F' }, - { "dscp-class", 1, 0, 'G' }, - { 0 } -}; - -static void -parse_dscp(const char *s, struct ipt_dscp_info *dinfo) -{ - unsigned int dscp; - - if (string_to_number(s, 0, 255, &dscp) == -1) - exit_error(PARAMETER_PROBLEM, - "Invalid dscp `%s'\n", s); - - if (dscp > IPT_DSCP_MAX) - exit_error(PARAMETER_PROBLEM, - "DSCP `%d` out of range\n", dscp); - - dinfo->dscp = (u_int8_t )dscp; - return; -} - - -static void -parse_class(const char *s, struct ipt_dscp_info *dinfo) -{ - unsigned int dscp = class_to_dscp(s); - - /* Assign the value */ - dinfo->dscp = (u_int8_t)dscp; -} - - -static int -parse(int c, char **argv, int invert, unsigned int *flags, - const void *entry, - unsigned int *nfcache, - struct xt_entry_match **match) -{ - struct ipt_dscp_info *dinfo - = (struct ipt_dscp_info *)(*match)->data; - - switch (c) { - case 'F': - if (*flags) - exit_error(PARAMETER_PROBLEM, - "DSCP match: Only use --dscp ONCE!"); - check_inverse(optarg, &invert, &optind, 0); - parse_dscp(argv[optind-1], dinfo); - if (invert) - dinfo->invert = 1; - *flags = 1; - break; - - case 'G': - if (*flags) - exit_error(PARAMETER_PROBLEM, - "DSCP match: Only use --dscp-class ONCE!"); - check_inverse(optarg, &invert, &optind, 0); - parse_class(argv[optind - 1], dinfo); - if (invert) - dinfo->invert = 1; - *flags = 1; - break; - - default: - return 0; - } - - return 1; -} - -static void -final_check(unsigned int flags) -{ - if (!flags) - exit_error(PARAMETER_PROBLEM, - "DSCP match: Parameter --dscp is required"); -} - -static void -print_dscp(u_int8_t dscp, int invert, int numeric) -{ - if (invert) - fputc('!', stdout); - - printf("0x%02x ", dscp); -} - -/* Prints out the matchinfo. */ -static void -print(const void *ip, - const struct xt_entry_match *match, - int numeric) -{ - const struct ipt_dscp_info *dinfo = - (const struct ipt_dscp_info *)match->data; - printf("DSCP match "); - print_dscp(dinfo->dscp, dinfo->invert, numeric); -} - -/* Saves the union ipt_matchinfo in parsable form to stdout. */ -static void -save(const void *ip, const struct xt_entry_match *match) -{ - const struct ipt_dscp_info *dinfo = - (const struct ipt_dscp_info *)match->data; - - printf("--dscp "); - print_dscp(dinfo->dscp, dinfo->invert, 1); -} - -static struct iptables_match dscp = { - .next = NULL, - .name = "dscp", - .version = IPTABLES_VERSION, - .size = IPT_ALIGN(sizeof(struct ipt_dscp_info)), - .userspacesize = IPT_ALIGN(sizeof(struct ipt_dscp_info)), - .help = &help, - .parse = &parse, - .final_check = &final_check, - .print = &print, - .save = &save, - .extra_opts = opts -}; - -void _init(void) -{ - register_match(&dscp); -} |