1 files changed, 0 insertions, 551 deletions

diff --git a/extensions/libipt_DNAT.c b/extensions/libipt_DNAT.c
deleted file mode 100644
index 5b33fd23..00000000
--- a/extensions/libipt_DNAT.c
+++ /dev/null
@@ -1,551 +0,0 @@
-#include <stdio.h>
-#include <netdb.h>
-#include <string.h>
-#include <stdlib.h>
-#include <xtables.h>
-#include <iptables.h> /* get_kernel_version */
-#include <limits.h> /* INT_MAX in ip_tables.h */
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter/nf_nat.h>
-
-enum {
-	O_TO_DEST = 0,
-	O_RANDOM,
-	O_PERSISTENT,
-	O_X_TO_DEST, /* hidden flag */
-	F_TO_DEST   = 1 << O_TO_DEST,
-	F_RANDOM    = 1 << O_RANDOM,
-	F_X_TO_DEST = 1 << O_X_TO_DEST,
-};
-
-/* Dest NAT data consists of a multi-range, indicating where to map
-   to. */
-struct ipt_natinfo
-{
-	struct xt_entry_target t;
-	struct nf_nat_ipv4_multi_range_compat mr;
-};
-
-static void DNAT_help(void)
-{
-	printf(
-"DNAT target options:\n"
-" --to-destination [<ipaddr>[-<ipaddr>]][:port[-port]]\n"
-"				Address to map destination to.\n"
-"[--random] [--persistent]\n");
-}
-
-static void DNAT_help_v2(void)
-{
-	printf(
-"DNAT target options:\n"
-" --to-destination [<ipaddr>[-<ipaddr>]][:port[-port[/port]]]\n"
-"				Address to map destination to.\n"
-"[--random] [--persistent]\n");
-}
-
-static const struct xt_option_entry DNAT_opts[] = {
-	{.name = "to-destination", .id = O_TO_DEST, .type = XTTYPE_STRING,
-	 .flags = XTOPT_MAND | XTOPT_MULTI},
-	{.name = "random", .id = O_RANDOM, .type = XTTYPE_NONE},
-	{.name = "persistent", .id = O_PERSISTENT, .type = XTTYPE_NONE},
-	XTOPT_TABLEEND,
-};
-
-static struct ipt_natinfo *
-append_range(struct ipt_natinfo *info, const struct nf_nat_ipv4_range *range)
-{
-	unsigned int size;
-
-	/* One rangesize already in struct ipt_natinfo */
-	size = XT_ALIGN(sizeof(*info) + info->mr.rangesize * sizeof(*range));
-
-	info = realloc(info, size);
-	if (!info)
-		xtables_error(OTHER_PROBLEM, "Out of memory\n");
-
-	info->t.u.target_size = size;
-	info->mr.range[info->mr.rangesize] = *range;
-	info->mr.rangesize++;
-
-	return info;
-}
-
-/* Ranges expected in network order. */
-static struct xt_entry_target *
-parse_to(const char *orig_arg, int portok, struct ipt_natinfo *info)
-{
-	struct nf_nat_ipv4_range range;
-	char *arg, *colon, *dash, *error;
-	const struct in_addr *ip;
-
-	arg = xtables_strdup(orig_arg);
-	memset(&range, 0, sizeof(range));
-	colon = strchr(arg, ':');
-
-	if (colon) {
-		int port;
-
-		if (!portok)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Need TCP, UDP, SCTP or DCCP with port specification");
-
-		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
-
-		port = atoi(colon+1);
-		if (port <= 0 || port > 65535)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Port `%s' not valid\n", colon+1);
-
-		error = strchr(colon+1, ':');
-		if (error)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Invalid port:port syntax - use dash\n");
-
-		dash = strchr(colon, '-');
-		if (!dash) {
-			range.min.tcp.port
-				= range.max.tcp.port
-				= htons(port);
-		} else {
-			int maxport;
-
-			maxport = atoi(dash + 1);
-			if (maxport <= 0 || maxport > 65535)
-				xtables_error(PARAMETER_PROBLEM,
-					   "Port `%s' not valid\n", dash+1);
-			if (maxport < port)
-				/* People are stupid. */
-				xtables_error(PARAMETER_PROBLEM,
-					   "Port range `%s' funky\n", colon+1);
-			range.min.tcp.port = htons(port);
-			range.max.tcp.port = htons(maxport);
-		}
-		/* Starts with a colon? No IP info...*/
-		if (colon == arg) {
-			free(arg);
-			return &(append_range(info, &range)->t);
-		}
-		*colon = '\0';
-	}
-
-	range.flags |= NF_NAT_RANGE_MAP_IPS;
-	dash = strchr(arg, '-');
-	if (colon && dash && dash > colon)
-		dash = NULL;
-
-	if (dash)
-		*dash = '\0';
-
-	ip = xtables_numeric_to_ipaddr(arg);
-	if (!ip)
-		xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
-			   arg);
-	range.min_ip = ip->s_addr;
-	if (dash) {
-		ip = xtables_numeric_to_ipaddr(dash+1);
-		if (!ip)
-			xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
-				   dash+1);
-		range.max_ip = ip->s_addr;
-	} else
-		range.max_ip = range.min_ip;
-
-	free(arg);
-	return &(append_range(info, &range)->t);
-}
-
-static void DNAT_parse(struct xt_option_call *cb)
-{
-	const struct ipt_entry *entry = cb->xt_entry;
-	struct ipt_natinfo *info = (void *)(*cb->target);
-	int portok;
-
-	if (entry->ip.proto == IPPROTO_TCP
-	    || entry->ip.proto == IPPROTO_UDP
-	    || entry->ip.proto == IPPROTO_SCTP
-	    || entry->ip.proto == IPPROTO_DCCP
-	    || entry->ip.proto == IPPROTO_ICMP)
-		portok = 1;
-	else
-		portok = 0;
-
-	xtables_option_parse(cb);
-	switch (cb->entry->id) {
-	case O_TO_DEST:
-		if (cb->xflags & F_X_TO_DEST) {
-			if (!kernel_version)
-				get_kernel_version();
-			if (kernel_version > LINUX_VERSION(2, 6, 10))
-				xtables_error(PARAMETER_PROBLEM,
-					   "DNAT: Multiple --to-destination not supported");
-		}
-		*cb->target = parse_to(cb->arg, portok, info);
-		cb->xflags |= F_X_TO_DEST;
-		break;
-	case O_PERSISTENT:
-		info->mr.range[0].flags |= NF_NAT_RANGE_PERSISTENT;
-		break;
-	}
-}
-
-static void DNAT_fcheck(struct xt_fcheck_call *cb)
-{
-	static const unsigned int f = F_TO_DEST | F_RANDOM;
-	struct nf_nat_ipv4_multi_range_compat *mr = cb->data;
-
-	if ((cb->xflags & f) == f)
-		mr->range[0].flags |= NF_NAT_RANGE_PROTO_RANDOM;
-}
-
-static void print_range(const struct nf_nat_ipv4_range *r)
-{
-	if (r->flags & NF_NAT_RANGE_MAP_IPS) {
-		struct in_addr a;
-
-		a.s_addr = r->min_ip;
-		printf("%s", xtables_ipaddr_to_numeric(&a));
-		if (r->max_ip != r->min_ip) {
-			a.s_addr = r->max_ip;
-			printf("-%s", xtables_ipaddr_to_numeric(&a));
-		}
-	}
-	if (r->flags & NF_NAT_RANGE_PROTO_SPECIFIED) {
-		printf(":");
-		printf("%hu", ntohs(r->min.tcp.port));
-		if (r->max.tcp.port != r->min.tcp.port)
-			printf("-%hu", ntohs(r->max.tcp.port));
-	}
-}
-
-static void DNAT_print(const void *ip, const struct xt_entry_target *target,
-                       int numeric)
-{
-	const struct ipt_natinfo *info = (const void *)target;
-	unsigned int i = 0;
-
-	printf(" to:");
-	for (i = 0; i < info->mr.rangesize; i++) {
-		print_range(&info->mr.range[i]);
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PROTO_RANDOM)
-			printf(" random");
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PERSISTENT)
-			printf(" persistent");
-	}
-}
-
-static void DNAT_save(const void *ip, const struct xt_entry_target *target)
-{
-	const struct ipt_natinfo *info = (const void *)target;
-	unsigned int i = 0;
-
-	for (i = 0; i < info->mr.rangesize; i++) {
-		printf(" --to-destination ");
-		print_range(&info->mr.range[i]);
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PROTO_RANDOM)
-			printf(" --random");
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PERSISTENT)
-			printf(" --persistent");
-	}
-}
-
-static void print_range_xlate(const struct nf_nat_ipv4_range *r,
-			struct xt_xlate *xl)
-{
-	if (r->flags & NF_NAT_RANGE_MAP_IPS) {
-		struct in_addr a;
-
-		a.s_addr = r->min_ip;
-		xt_xlate_add(xl, "%s", xtables_ipaddr_to_numeric(&a));
-		if (r->max_ip != r->min_ip) {
-			a.s_addr = r->max_ip;
-			xt_xlate_add(xl, "-%s", xtables_ipaddr_to_numeric(&a));
-		}
-	}
-	if (r->flags & NF_NAT_RANGE_PROTO_SPECIFIED) {
-		xt_xlate_add(xl, ":%hu", ntohs(r->min.tcp.port));
-		if (r->max.tcp.port != r->min.tcp.port)
-			xt_xlate_add(xl, "-%hu", ntohs(r->max.tcp.port));
-	}
-}
-
-static int DNAT_xlate(struct xt_xlate *xl,
-		      const struct xt_xlate_tg_params *params)
-{
-	const struct ipt_natinfo *info = (const void *)params->target;
-	unsigned int i = 0;
-	bool sep_need = false;
-	const char *sep = " ";
-
-	for (i = 0; i < info->mr.rangesize; i++) {
-		xt_xlate_add(xl, "dnat to ");
-		print_range_xlate(&info->mr.range[i], xl);
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PROTO_RANDOM) {
-			xt_xlate_add(xl, " random");
-			sep_need = true;
-		}
-		if (info->mr.range[i].flags & NF_NAT_RANGE_PERSISTENT) {
-			if (sep_need)
-				sep = ",";
-			xt_xlate_add(xl, "%spersistent", sep);
-		}
-	}
-
-	return 1;
-}
-
-static void
-parse_to_v2(const char *orig_arg, int portok, struct nf_nat_range2 *range)
-{
-	char *arg, *colon, *dash, *error;
-	const struct in_addr *ip;
-
-	arg = xtables_strdup(orig_arg);
-
-	colon = strchr(arg, ':');
-	if (colon) {
-		int port;
-
-		if (!portok)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Need TCP, UDP, SCTP or DCCP with port specification");
-
-		range->flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
-
-		port = atoi(colon+1);
-		if (port <= 0 || port > 65535)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Port `%s' not valid\n", colon+1);
-
-		error = strchr(colon+1, ':');
-		if (error)
-			xtables_error(PARAMETER_PROBLEM,
-				   "Invalid port:port syntax - use dash\n");
-
-		dash = strchr(colon, '-');
-		if (!dash) {
-			range->min_proto.tcp.port
-				= range->max_proto.tcp.port
-				= htons(port);
-		} else {
-			int maxport;
-			char *slash;
-
-			maxport = atoi(dash + 1);
-			if (maxport <= 0 || maxport > 65535)
-				xtables_error(PARAMETER_PROBLEM,
-					   "Port `%s' not valid\n", dash+1);
-			if (maxport < port)
-				/* People are stupid. */
-				xtables_error(PARAMETER_PROBLEM,
-					   "Port range `%s' funky\n", colon+1);
-			range->min_proto.tcp.port = htons(port);
-			range->max_proto.tcp.port = htons(maxport);
-
-			slash = strchr(dash, '/');
-			if (slash) {
-				int baseport;
-
-				baseport = atoi(slash + 1);
-				if (baseport <= 0 || baseport > 65535)
-					xtables_error(PARAMETER_PROBLEM,
-							 "Port `%s' not valid\n", slash+1);
-				range->flags |= NF_NAT_RANGE_PROTO_OFFSET;
-				range->base_proto.tcp.port = htons(baseport);
-			}
-		}
-		/* Starts with a colon? No IP info...*/
-		if (colon == arg) {
-			free(arg);
-			return;
-		}
-		*colon = '\0';
-	}
-
-	range->flags |= NF_NAT_RANGE_MAP_IPS;
-	dash = strchr(arg, '-');
-	if (colon && dash && dash > colon)
-		dash = NULL;
-
-	if (dash)
-		*dash = '\0';
-
-	ip = xtables_numeric_to_ipaddr(arg);
-	if (!ip)
-		xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
-			   arg);
-	range->min_addr.in = *ip;
-	if (dash) {
-		ip = xtables_numeric_to_ipaddr(dash+1);
-		if (!ip)
-			xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
-				   dash+1);
-		range->max_addr.in = *ip;
-	} else
-		range->max_addr = range->min_addr;
-
-	free(arg);
-	return;
-}
-
-static void DNAT_parse_v2(struct xt_option_call *cb)
-{
-	const struct ipt_entry *entry = cb->xt_entry;
-	struct nf_nat_range2 *range = cb->data;
-	int portok;
-
-	if (entry->ip.proto == IPPROTO_TCP
-	    || entry->ip.proto == IPPROTO_UDP
-	    || entry->ip.proto == IPPROTO_SCTP
-	    || entry->ip.proto == IPPROTO_DCCP
-	    || entry->ip.proto == IPPROTO_ICMP)
-		portok = 1;
-	else
-		portok = 0;
-
-	xtables_option_parse(cb);
-	switch (cb->entry->id) {
-	case O_TO_DEST:
-		if (cb->xflags & F_X_TO_DEST) {
-			xtables_error(PARAMETER_PROBLEM,
-				   "DNAT: Multiple --to-destination not supported");
-		}
-		parse_to_v2(cb->arg, portok, range);
-		cb->xflags |= F_X_TO_DEST;
-		break;
-	case O_PERSISTENT:
-		range->flags |= NF_NAT_RANGE_PERSISTENT;
-		break;
-	}
-}
-
-static void DNAT_fcheck_v2(struct xt_fcheck_call *cb)
-{
-	static const unsigned int f = F_TO_DEST | F_RANDOM;
-	struct nf_nat_range2 *range = cb->data;
-
-	if ((cb->xflags & f) == f)
-		range->flags |= NF_NAT_RANGE_PROTO_RANDOM;
-}
-
-static void print_range_v2(const struct nf_nat_range2 *range)
-{
-	if (range->flags & NF_NAT_RANGE_MAP_IPS) {
-		printf("%s", xtables_ipaddr_to_numeric(&range->min_addr.in));
-		if (memcmp(&range->min_addr, &range->max_addr,
-			   sizeof(range->min_addr)))
-			printf("-%s", xtables_ipaddr_to_numeric(&range->max_addr.in));
-	}
-	if (range->flags & NF_NAT_RANGE_PROTO_SPECIFIED) {
-		printf(":");
-		printf("%hu", ntohs(range->min_proto.tcp.port));
-		if (range->max_proto.tcp.port != range->min_proto.tcp.port)
-			printf("-%hu", ntohs(range->max_proto.tcp.port));
-		if (range->flags & NF_NAT_RANGE_PROTO_OFFSET)
-			printf("/%hu", ntohs(range->base_proto.tcp.port));
-	}
-}
-
-static void DNAT_print_v2(const void *ip, const struct xt_entry_target *target,
-                       int numeric)
-{
-	const struct nf_nat_range2 *range = (const void *)target->data;
-
-	printf(" to:");
-	print_range_v2(range);
-	if (range->flags & NF_NAT_RANGE_PROTO_RANDOM)
-		printf(" random");
-	if (range->flags & NF_NAT_RANGE_PERSISTENT)
-		printf(" persistent");
-}
-
-static void DNAT_save_v2(const void *ip, const struct xt_entry_target *target)
-{
-	const struct nf_nat_range2 *range = (const void *)target->data;
-
-	printf(" --to-destination ");
-	print_range_v2(range);
-	if (range->flags & NF_NAT_RANGE_PROTO_RANDOM)
-		printf(" --random");
-	if (range->flags & NF_NAT_RANGE_PERSISTENT)
-		printf(" --persistent");
-}
-
-static void print_range_xlate_v2(const struct nf_nat_range2 *range,
-			      struct xt_xlate *xl)
-{
-	if (range->flags & NF_NAT_RANGE_MAP_IPS) {
-		xt_xlate_add(xl, "%s", xtables_ipaddr_to_numeric(&range->min_addr.in));
-		if (memcmp(&range->min_addr, &range->max_addr,
-			   sizeof(range->min_addr))) {
-			xt_xlate_add(xl, "-%s", xtables_ipaddr_to_numeric(&range->max_addr.in));
-		}
-	}
-	if (range->flags & NF_NAT_RANGE_PROTO_SPECIFIED) {
-		xt_xlate_add(xl, ":%hu", ntohs(range->min_proto.tcp.port));
-		if (range->max_proto.tcp.port != range->min_proto.tcp.port)
-			xt_xlate_add(xl, "-%hu", ntohs(range->max_proto.tcp.port));
-		if (range->flags & NF_NAT_RANGE_PROTO_OFFSET)
-			xt_xlate_add(xl, ";%hu", ntohs(range->base_proto.tcp.port));
-	}
-}
-
-static int DNAT_xlate_v2(struct xt_xlate *xl,
-		      const struct xt_xlate_tg_params *params)
-{
-	const struct nf_nat_range2 *range = (const void *)params->target->data;
-	bool sep_need = false;
-	const char *sep = " ";
-
-	xt_xlate_add(xl, "dnat to ");
-	print_range_xlate_v2(range, xl);
-	if (range->flags & NF_NAT_RANGE_PROTO_RANDOM) {
-		xt_xlate_add(xl, " random");
-		sep_need = true;
-	}
-	if (range->flags & NF_NAT_RANGE_PERSISTENT) {
-		if (sep_need)
-			sep = ",";
-		xt_xlate_add(xl, "%spersistent", sep);
-	}
-
-	return 1;
-}
-
-static struct xtables_target dnat_tg_reg[] = {
-	{
-		.name		= "DNAT",
-		.version	= XTABLES_VERSION,
-		.family		= NFPROTO_IPV4,
-		.revision	= 0,
-		.size		= XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)),
-		.userspacesize	= XT_ALIGN(sizeof(struct nf_nat_ipv4_multi_range_compat)),
-		.help		= DNAT_help,
-		.print		= DNAT_print,
-		.save		= DNAT_save,
-		.x6_parse	= DNAT_parse,
-		.x6_fcheck	= DNAT_fcheck,
-		.x6_options	= DNAT_opts,
-		.xlate		= DNAT_xlate,
-	},
-	{
-		.name		= "DNAT",
-		.version	= XTABLES_VERSION,
-		.family		= NFPROTO_IPV4,
-		.revision	= 2,
-		.size		= XT_ALIGN(sizeof(struct nf_nat_range2)),
-		.userspacesize	= XT_ALIGN(sizeof(struct nf_nat_range2)),
-		.help		= DNAT_help_v2,
-		.print		= DNAT_print_v2,
-		.save		= DNAT_save_v2,
-		.x6_parse	= DNAT_parse_v2,
-		.x6_fcheck	= DNAT_fcheck_v2,
-		.x6_options	= DNAT_opts,
-		.xlate		= DNAT_xlate_v2,
-	},
-};
-
-void _init(void)
-{
-	xtables_register_targets(dnat_tg_reg, ARRAY_SIZE(dnat_tg_reg));
-}