From 45e4c6946426785d30733701d1ee8112e58538a4 Mon Sep 17 00:00:00 2001
From: Yasuyuki KOZAKAI <yasuyuki@netfilter.org>
Date: Tue, 24 Jul 2007 07:22:24 +0000
Subject: Unifies libip[6]t_TCPMSS.c into libxt_TCPMSS.c

---
 extensions/libip6t_TCPMSS.c | 134 --------------------------------------------
 1 file changed, 134 deletions(-)
 delete mode 100644 extensions/libip6t_TCPMSS.c

(limited to 'extensions/libip6t_TCPMSS.c')

diff --git a/extensions/libip6t_TCPMSS.c b/extensions/libip6t_TCPMSS.c
deleted file mode 100644
index f93a5a3b..00000000
--- a/extensions/libip6t_TCPMSS.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Shared library add-on to iptables to add TCPMSS target support.
- *
- * Copyright (c) 2000 Marc Boucher
-*/
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
-
-#include <ip6tables.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv6/ip6t_TCPMSS.h>
-
-struct mssinfo {
-	struct xt_entry_target t;
-	struct ip6t_tcpmss_info mss;
-};
-
-/* Function which prints out usage message. */
-static void
-help(void)
-{
-	printf(
-"TCPMSS target v%s mutually-exclusive options:\n"
-"  --set-mss value               explicitly set MSS option to specified value\n"
-"  --clamp-mss-to-pmtu           automatically clamp MSS value to (path_MTU - 60)\n",
-IPTABLES_VERSION);
-}
-
-static struct option opts[] = {
-	{ "set-mss", 1, 0, '1' },
-	{ "clamp-mss-to-pmtu", 0, 0, '2' },
-	{ 0 }
-};
-
-/* Initialize the target. */
-static void
-init(struct xt_entry_target *t, unsigned int *nfcache)
-{
-}
-
-/* Function which parses command options; returns true if it
-   ate an option */
-static int
-parse(int c, char **argv, int invert, unsigned int *flags,
-      const void *entry,
-      struct xt_entry_target **target)
-{
-	struct ip6t_tcpmss_info *mssinfo
-		= (struct ip6t_tcpmss_info *)(*target)->data;
-
-	switch (c) {
-		unsigned int mssval;
-
-	case '1':
-		if (*flags)
-			exit_error(PARAMETER_PROBLEM,
-			           "TCPMSS target: Only one option may be specified");
-		if (string_to_number(optarg, 0, 65535 - 60, &mssval) == -1)
-			exit_error(PARAMETER_PROBLEM, "Bad TCPMSS value `%s'", optarg);
-
-		mssinfo->mss = mssval;
-		*flags = 1;
-		break;
-
-	case '2':
-		if (*flags)
-			exit_error(PARAMETER_PROBLEM,
-			           "TCPMSS target: Only one option may be specified");
-		mssinfo->mss = IP6T_TCPMSS_CLAMP_PMTU;
-		*flags = 1;
-		break;
-
-	default:
-		return 0;
-	}
-
-	return 1;
-}
-
-static void
-final_check(unsigned int flags)
-{
-	if (!flags)
-		exit_error(PARAMETER_PROBLEM,
-		           "TCPMSS target: At least one parameter is required");
-}
-
-/* Prints out the targinfo. */
-static void
-print(const void *ip6,
-      const struct xt_entry_target *target,
-      int numeric)
-{
-	const struct ip6t_tcpmss_info *mssinfo =
-		(const struct ip6t_tcpmss_info *)target->data;
-	if(mssinfo->mss == IP6T_TCPMSS_CLAMP_PMTU)
-		printf("TCPMSS clamp to PMTU ");
-	else
-		printf("TCPMSS set %u ", mssinfo->mss);
-}
-
-/* Saves the union ip6t_targinfo in parsable form to stdout. */
-static void
-save(const void *ip, const struct xt_entry_target *target)
-{
-	const struct ip6t_tcpmss_info *mssinfo =
-		(const struct ip6t_tcpmss_info *)target->data;
-
-	if(mssinfo->mss == IP6T_TCPMSS_CLAMP_PMTU)
-		printf("--clamp-mss-to-pmtu ");
-	else
-		printf("--set-mss %u ", mssinfo->mss);
-}
-
-static struct ip6tables_target mss = {
-	.next		= NULL,
-	.name		= "TCPMSS",
-	.version	= IPTABLES_VERSION,
-	.size		= IP6T_ALIGN(sizeof(struct ip6t_tcpmss_info)),
-	.userspacesize	= IP6T_ALIGN(sizeof(struct ip6t_tcpmss_info)),
-	.help		= &help,
-	.init		= &init,
-	.parse		= &parse,
-	.final_check	= &final_check,
-	.print		= &print,
-	.save		= &save,
-	.extra_opts	= opts
-};
-
-void _init(void)
-{
-	register_target6(&mss);
-}
-- 
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