diff options
Diffstat (limited to 'extensions/libipt_DSCP.c')
-rw-r--r-- | extensions/libipt_DSCP.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/extensions/libipt_DSCP.c b/extensions/libipt_DSCP.c deleted file mode 100644 index 029c54f..0000000 --- a/extensions/libipt_DSCP.c +++ /dev/null @@ -1,163 +0,0 @@ -/* Shared library add-on to iptables for DSCP - * - * (C) 2000- 2002 by Matthew G. Marsh <mgm@paktronix.com>, - * 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 - * - * --set-class added by Iain Barnes - */ -#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 init(struct xt_entry_target *t, unsigned int *nfcache) -{ -} - -static void help(void) -{ - printf( -"DSCP target options\n" -" --set-dscp value Set DSCP field in packet header to value\n" -" This value can be in decimal (ex: 32)\n" -" or in hex (ex: 0x20)\n" -" --set-dscp-class class Set the DSCP field in packet header to the\n" -" value represented by the DiffServ class value.\n" -" This class may be EF,BE or any of the CSxx\n" -" or AFxx classes.\n" -"\n" -" These two options are mutually exclusive !\n" -); -} - -static const struct option opts[] = { - { "set-dscp", 1, 0, 'F' }, - { "set-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, - struct xt_entry_target **target) -{ - struct ipt_DSCP_info *dinfo - = (struct ipt_DSCP_info *)(*target)->data; - - switch (c) { - case 'F': - if (*flags) - exit_error(PARAMETER_PROBLEM, - "DSCP target: Only use --set-dscp ONCE!"); - parse_dscp(optarg, dinfo); - *flags = 1; - break; - case 'G': - if (*flags) - exit_error(PARAMETER_PROBLEM, - "DSCP target: Only use --set-dscp-class ONCE!"); - parse_class(optarg, dinfo); - *flags = 1; - break; - - default: - return 0; - } - - return 1; -} - -static void -final_check(unsigned int flags) -{ - if (!flags) - exit_error(PARAMETER_PROBLEM, - "DSCP target: Parameter --set-dscp is required"); -} - -static void -print_dscp(u_int8_t dscp, int numeric) -{ - printf("0x%02x ", dscp); -} - -/* Prints out the targinfo. */ -static void -print(const void *ip, - const struct xt_entry_target *target, - int numeric) -{ - const struct ipt_DSCP_info *dinfo = - (const struct ipt_DSCP_info *)target->data; - printf("DSCP set "); - print_dscp(dinfo->dscp, numeric); -} - -/* Saves the union ipt_targinfo in parsable form to stdout. */ -static void -save(const void *ip, const struct xt_entry_target *target) -{ - const struct ipt_DSCP_info *dinfo = - (const struct ipt_DSCP_info *)target->data; - - printf("--set-dscp 0x%02x ", dinfo->dscp); -} - -static struct iptables_target dscp = { - .name = "DSCP", - .version = IPTABLES_VERSION, - .size = IPT_ALIGN(sizeof(struct ipt_DSCP_info)), - .userspacesize = IPT_ALIGN(sizeof(struct ipt_DSCP_info)), - .help = &help, - .init = &init, - .parse = &parse, - .final_check = &final_check, - .print = &print, - .save = &save, - .extra_opts = opts -}; - -void _init(void) -{ - register_target(&dscp); -} |