[mirror_ubuntu-artful-kernel.git] / net / netfilter / ipset / ip_set_hash_netportnet.c

/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/* Kernel module implementing an IP set type: the hash:ip,port,net type */

#include <linux/jhash.h>
#include <linux/module.h>
#include <linux/ip.h>
#include <linux/skbuff.h>
#include <linux/errno.h>
#include <linux/random.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/netlink.h>
#include <net/tcp.h>

#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
#include <linux/netfilter/ipset/ip_set_hash.h>

#define IPSET_TYPE_REV_MIN	0
#define IPSET_TYPE_REV_MAX	0 /* Comments support added */

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
MODULE_ALIAS("ip_set_hash:net,port,net");

/* Type specific function prefix */
#define HTYPE		hash_netportnet
#define IP_SET_HASH_WITH_PROTO
#define IP_SET_HASH_WITH_NETS
#define IPSET_NET_COUNT 2

/* IPv4 variant */

/* Member elements */
struct hash_netportnet4_elem {
	union {
		__be32 ip[2];
		__be64 ipcmp;
	};
	__be16 port;
	union {
		u8 cidr[2];
		u16 ccmp;
	};
	u8 nomatch:1;
	u8 proto;
};

/* Common functions */

static inline bool
hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
			   const struct hash_netportnet4_elem *ip2,
			   u32 *multi)
{
	return ip1->ipcmp == ip2->ipcmp &&
	       ip1->ccmp == ip2->ccmp &&
	       ip1->port == ip2->port &&
	       ip1->proto == ip2->proto;
}

static inline int
hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
{
	return elem->nomatch ? -ENOTEMPTY : 1;
}

static inline void
hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
{
	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}

static inline void
hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
{
	swap(*flags, elem->nomatch);
}

static inline void
hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
				struct hash_netportnet4_elem *orig)
{
	elem->ip[1] = orig->ip[1];
}

static inline void
hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
			      u8 cidr, bool inner)
{
	if (inner) {
		elem->ip[1] &= ip_set_netmask(cidr);
		elem->cidr[1] = cidr;
	} else {
		elem->ip[0] &= ip_set_netmask(cidr);
		elem->cidr[0] = cidr;
	}
}

static bool
hash_netportnet4_data_list(struct sk_buff *skb,
			  const struct hash_netportnet4_elem *data)
{
	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;

	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
	    (flags &&
	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
		goto nla_put_failure;
	return 0;

nla_put_failure:
	return 1;
}

static inline void
hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
			  const struct hash_netportnet4_elem *d)
{
	next->ipcmp = d->ipcmp;
	next->port = d->port;
}

#define MTYPE		hash_netportnet4
#define PF		4
#define HOST_MASK	32
#include "ip_set_hash_gen.h"

static int
hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
		     const struct xt_action_param *par,
		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
	const struct hash_netportnet *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_netportnet4_elem e = {
		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
	};
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	if (adt == IPSET_TEST)
		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;

	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
				 &e.port, &e.proto))
		return -EINVAL;

	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
	e.ip[0] &= ip_set_netmask(e.cidr[0]);
	e.ip[1] &= ip_set_netmask(e.cidr[1]);

	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}

static int
hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
	const struct hash_netportnet *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_netportnet4_elem e = { .cidr[0] = HOST_MASK,
					   .cidr[1] = HOST_MASK };
	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
	bool with_ports = false;
	u8 cidr, cidr2;
	int ret;

	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
		return -IPSET_ERR_PROTOCOL;

	if (tb[IPSET_ATTR_LINENO])
		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);

	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
	      ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
	      ip_set_get_extensions(set, tb, &ext);
	if (ret)
		return ret;

	if (tb[IPSET_ATTR_CIDR]) {
		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
		if (!cidr || cidr > HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
		e.cidr[0] = cidr;
	}

	if (tb[IPSET_ATTR_CIDR2]) {
		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
		if (!cidr || cidr > HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
		e.cidr[1] = cidr;
	}

	if (tb[IPSET_ATTR_PORT])
		e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
	else
		return -IPSET_ERR_PROTOCOL;

	if (tb[IPSET_ATTR_PROTO]) {
		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
		with_ports = ip_set_proto_with_ports(e.proto);

		if (e.proto == 0)
			return -IPSET_ERR_INVALID_PROTO;
	} else
		return -IPSET_ERR_MISSING_PROTO;

	if (!(with_ports || e.proto == IPPROTO_ICMP))
		e.port = 0;

	if (tb[IPSET_ATTR_CADT_FLAGS]) {
		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
		if (cadt_flags & IPSET_FLAG_NOMATCH)
			flags |= (IPSET_FLAG_NOMATCH << 16);
	}

	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
	if (adt == IPSET_TEST ||
	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
		ret = adtfn(set, &e, &ext, &ext, flags);
		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
		       ip_set_eexist(ret, flags) ? 0 : ret;
	}

	ip_to = ip;
	if (tb[IPSET_ATTR_IP_TO]) {
		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
		if (ret)
			return ret;
		if (ip > ip_to)
			swap(ip, ip_to);
		if (unlikely(ip + UINT_MAX == ip_to))
			return -IPSET_ERR_HASH_RANGE;
	}

	port_to = port = ntohs(e.port);
	if (tb[IPSET_ATTR_PORT_TO]) {
		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
		if (port > port_to)
			swap(port, port_to);
	}

	ip2_to = ip2_from;
	if (tb[IPSET_ATTR_IP2_TO]) {
		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
		if (ret)
			return ret;
		if (ip2_from > ip2_to)
			swap(ip2_from, ip2_to);
		if (unlikely(ip2_from + UINT_MAX == ip2_to))
			return -IPSET_ERR_HASH_RANGE;
	}

	if (retried)
		ip = ntohl(h->next.ip[0]);

	while (!after(ip, ip_to)) {
		e.ip[0] = htonl(ip);
		ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
		e.cidr[0] = cidr;
		p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
							  : port;
		for (; p <= port_to; p++) {
			e.port = htons(p);
			ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
			       p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
							 : ip2_from;
			while (!after(ip2, ip2_to)) {
				e.ip[1] = htonl(ip2);
				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
								&cidr2);
				e.cidr[1] = cidr2;
				ret = adtfn(set, &e, &ext, &ext, flags);
				if (ret && !ip_set_eexist(ret, flags))
					return ret;
				else
					ret = 0;
				ip2 = ip2_last + 1;
			}
		}
		ip = ip_last + 1;
	}
	return ret;
}

/* IPv6 variant */

struct hash_netportnet6_elem {
	union nf_inet_addr ip[2];
	__be16 port;
	union {
		u8 cidr[2];
		u16 ccmp;
	};
	u8 nomatch:1;
	u8 proto;
};

/* Common functions */

static inline bool
hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
			   const struct hash_netportnet6_elem *ip2,
			   u32 *multi)
{
	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
	       ip1->ccmp == ip2->ccmp &&
	       ip1->port == ip2->port &&
	       ip1->proto == ip2->proto;
}

static inline int
hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
{
	return elem->nomatch ? -ENOTEMPTY : 1;
}

static inline void
hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
{
	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}

static inline void
hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
{
	swap(*flags, elem->nomatch);
}

static inline void
hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
				struct hash_netportnet6_elem *orig)
{
	elem->ip[1] = orig->ip[1];
}

static inline void
hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
			      u8 cidr, bool inner)
{
	if (inner) {
		ip6_netmask(&elem->ip[1], cidr);
		elem->cidr[1] = cidr;
	} else {
		ip6_netmask(&elem->ip[0], cidr);
		elem->cidr[0] = cidr;
	}
}

static bool
hash_netportnet6_data_list(struct sk_buff *skb,
			  const struct hash_netportnet6_elem *data)
{
	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;

	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
	    (flags &&
	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
		goto nla_put_failure;
	return 0;

nla_put_failure:
	return 1;
}

static inline void
hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
			  const struct hash_netportnet6_elem *d)
{
	next->port = d->port;
}

#undef MTYPE
#undef PF
#undef HOST_MASK

#define MTYPE		hash_netportnet6
#define PF		6
#define HOST_MASK	128
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"

static int
hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
		     const struct xt_action_param *par,
		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
	const struct hash_netportnet *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_netportnet6_elem e = {
		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
	};
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	if (adt == IPSET_TEST)
		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;

	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
				 &e.port, &e.proto))
		return -EINVAL;

	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
	ip6_netmask(&e.ip[0], e.cidr[0]);
	ip6_netmask(&e.ip[1], e.cidr[1]);

	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}

static int
hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
	const struct hash_netportnet *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_netportnet6_elem e = { .cidr[0] = HOST_MASK,
					   .cidr[1] = HOST_MASK };
	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	u32 port, port_to;
	bool with_ports = false;
	int ret;

	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
		return -IPSET_ERR_PROTOCOL;
	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;

	if (tb[IPSET_ATTR_LINENO])
		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);

	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
	      ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
	      ip_set_get_extensions(set, tb, &ext);
	if (ret)
		return ret;

	if (tb[IPSET_ATTR_CIDR])
		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);

	if (tb[IPSET_ATTR_CIDR2])
		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);

	if (unlikely(!e.cidr[0] || e.cidr[0] > HOST_MASK || !e.cidr[1] ||
		     e.cidr[1] > HOST_MASK))
		return -IPSET_ERR_INVALID_CIDR;

	ip6_netmask(&e.ip[0], e.cidr[0]);
	ip6_netmask(&e.ip[1], e.cidr[1]);

	if (tb[IPSET_ATTR_PORT])
		e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
	else
		return -IPSET_ERR_PROTOCOL;

	if (tb[IPSET_ATTR_PROTO]) {
		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
		with_ports = ip_set_proto_with_ports(e.proto);

		if (e.proto == 0)
			return -IPSET_ERR_INVALID_PROTO;
	} else
		return -IPSET_ERR_MISSING_PROTO;

	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
		e.port = 0;

	if (tb[IPSET_ATTR_CADT_FLAGS]) {
		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
		if (cadt_flags & IPSET_FLAG_NOMATCH)
			flags |= (IPSET_FLAG_NOMATCH << 16);
	}

	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
		ret = adtfn(set, &e, &ext, &ext, flags);
		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
		       ip_set_eexist(ret, flags) ? 0 : ret;
	}

	port = ntohs(e.port);
	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	if (port > port_to)
		swap(port, port_to);

	if (retried)
		port = ntohs(h->next.port);
	for (; port <= port_to; port++) {
		e.port = htons(port);
		ret = adtfn(set, &e, &ext, &ext, flags);

		if (ret && !ip_set_eexist(ret, flags))
			return ret;
		else
			ret = 0;
	}
	return ret;
}

static struct ip_set_type hash_netportnet_type __read_mostly = {
	.name		= "hash:net,port,net",
	.protocol	= IPSET_PROTOCOL,
	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
			  IPSET_TYPE_NOMATCH,
	.dimension	= IPSET_DIM_THREE,
	.family		= NFPROTO_UNSPEC,
	.revision_min	= IPSET_TYPE_REV_MIN,
	.revision_max	= IPSET_TYPE_REV_MAX,
	.create		= hash_netportnet_create,
	.create_policy	= {
		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
	},
	.adt_policy	= {
		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
	},
	.me		= THIS_MODULE,
};

static int __init
hash_netportnet_init(void)
{
	return ip_set_type_register(&hash_netportnet_type);
}

static void __exit
hash_netportnet_fini(void)
{
	ip_set_type_unregister(&hash_netportnet_type);
}

module_init(hash_netportnet_init);
module_exit(hash_netportnet_fini);
Commit	Line	Data
7c3ad056 OS	1	/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
	2	*
	3	* This program is free software; you can redistribute it and/or modify
	4	* it under the terms of the GNU General Public License version 2 as
	5	* published by the Free Software Foundation.
	6	*/
	7
	8	/* Kernel module implementing an IP set type: the hash:ip,port,net type */
	9
	10	#include <linux/jhash.h>
	11	#include <linux/module.h>
	12	#include <linux/ip.h>
	13	#include <linux/skbuff.h>
	14	#include <linux/errno.h>
	15	#include <linux/random.h>
	16	#include <net/ip.h>
	17	#include <net/ipv6.h>
	18	#include <net/netlink.h>
	19	#include <net/tcp.h>
	20
	21	#include <linux/netfilter.h>
	22	#include <linux/netfilter/ipset/pfxlen.h>
	23	#include <linux/netfilter/ipset/ip_set.h>
	24	#include <linux/netfilter/ipset/ip_set_getport.h>
	25	#include <linux/netfilter/ipset/ip_set_hash.h>
	26
	27	#define IPSET_TYPE_REV_MIN 0
	28	#define IPSET_TYPE_REV_MAX 0 /* Comments support added */
	29
	30	MODULE_LICENSE("GPL");
	31	MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
	32	IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
	33	MODULE_ALIAS("ip_set_hash:net,port,net");
	34
	35	/* Type specific function prefix */
	36	#define HTYPE hash_netportnet
	37	#define IP_SET_HASH_WITH_PROTO
	38	#define IP_SET_HASH_WITH_NETS
	39	#define IPSET_NET_COUNT 2
	40
	41	/* IPv4 variant */
	42
	43	/* Member elements */
	44	struct hash_netportnet4_elem {
	45	union {
	46	__be32 ip[2];
	47	__be64 ipcmp;
	48	};
	49	__be16 port;
	50	union {
	51	u8 cidr[2];
	52	u16 ccmp;
	53	};
	54	u8 nomatch:1;
	55	u8 proto;
	56	};
	57
	58	/* Common functions */
	59
	60	static inline bool
	61	hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
	62	const struct hash_netportnet4_elem *ip2,
	63	u32 *multi)
	64	{
65	return ip1->ipcmp == ip2->ipcmp &&
66	ip1->ccmp == ip2->ccmp &&
67	ip1->port == ip2->port &&
68	ip1->proto == ip2->proto;
69	}
70
71	static inline int
72	hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
73	{
74	return elem->nomatch ? -ENOTEMPTY : 1;
75	}
76
77	static inline void
78	hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
79	{
80	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
81	}
82
83	static inline void
84	hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem elem, u8 flags)
85	{
86	swap(*flags, elem->nomatch);
87	}
88
89	static inline void
90	hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
91	struct hash_netportnet4_elem *orig)
92	{
93	elem->ip[1] = orig->ip[1];
94	}
95
96	static inline void
97	hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
98	u8 cidr, bool inner)
99	{
100	if (inner) {
101	elem->ip[1] &= ip_set_netmask(cidr);
102	elem->cidr[1] = cidr;
103	} else {
104	elem->ip[0] &= ip_set_netmask(cidr);
105	elem->cidr[0] = cidr;
106	}
107	}
108
109	static bool
110	hash_netportnet4_data_list(struct sk_buff *skb,
111	const struct hash_netportnet4_elem *data)
112	{
113	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
114
115	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) \|\|
116	nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) \|\|
117	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
118	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
119	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
120	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
121	(flags &&
122	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
123	goto nla_put_failure;
124	return 0;
125
126	nla_put_failure:
127	return 1;
128	}
129
130	static inline void
131	hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
132	const struct hash_netportnet4_elem *d)
133	{
134	next->ipcmp = d->ipcmp;
135	next->port = d->port;
136	}
137
138	#define MTYPE hash_netportnet4
139	#define PF 4
140	#define HOST_MASK 32
141	#include "ip_set_hash_gen.h"
142
143	static int
144	hash_netportnet4_kadt(struct ip_set set, const struct sk_buff skb,
145	const struct xt_action_param *par,
146	enum ipset_adt adt, struct ip_set_adt_opt *opt)
147	{
148	const struct hash_netportnet *h = set->data;
149	ipset_adtfn adtfn = set->variant->adt[adt];
150	struct hash_netportnet4_elem e = {
151	.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
152	.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
153	};
154	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
155
156	if (adt == IPSET_TEST)
157	e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) \| HOST_MASK;
158
159	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
160	&e.port, &e.proto))
161	return -EINVAL;
162
163	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
164	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
165	e.ip[0] &= ip_set_netmask(e.cidr[0]);
166	e.ip[1] &= ip_set_netmask(e.cidr[1]);
167
168	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
169	}
170
171	static int
172	hash_netportnet4_uadt(struct ip_set set, struct nlattr tb[],
173	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
174	{
175	const struct hash_netportnet *h = set->data;
176	ipset_adtfn adtfn = set->variant->adt[adt];
177	struct hash_netportnet4_elem e = { .cidr[0] = HOST_MASK,
178	.cidr[1] = HOST_MASK };
179	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
180	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
181	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
182	bool with_ports = false;
183	u8 cidr, cidr2;
184	int ret;
185
186	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
187	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
188	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
189	!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) \|\|
190	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) \|\|
191	!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) \|\|
192	!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
193	return -IPSET_ERR_PROTOCOL;
194
195	if (tb[IPSET_ATTR_LINENO])
196	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
197
198	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) \|\|
199	ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) \|\|
200	ip_set_get_extensions(set, tb, &ext);
201	if (ret)
202	return ret;
203
204	if (tb[IPSET_ATTR_CIDR]) {
205	cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
206	if (!cidr \|\| cidr > HOST_MASK)
207	return -IPSET_ERR_INVALID_CIDR;
208	e.cidr[0] = cidr;
209	}
210
211	if (tb[IPSET_ATTR_CIDR2]) {
212	cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
213	if (!cidr \|\| cidr > HOST_MASK)
214	return -IPSET_ERR_INVALID_CIDR;
215	e.cidr[1] = cidr;
216	}
217
218	if (tb[IPSET_ATTR_PORT])
219	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
220	else
221	return -IPSET_ERR_PROTOCOL;
222
223	if (tb[IPSET_ATTR_PROTO]) {
224	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
225	with_ports = ip_set_proto_with_ports(e.proto);
226
227	if (e.proto == 0)
228	return -IPSET_ERR_INVALID_PROTO;
229	} else
230	return -IPSET_ERR_MISSING_PROTO;
231
232	if (!(with_ports \|\| e.proto == IPPROTO_ICMP))
233	e.port = 0;
234
235	if (tb[IPSET_ATTR_CADT_FLAGS]) {
236	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
237	if (cadt_flags & IPSET_FLAG_NOMATCH)
238	flags \|= (IPSET_FLAG_NOMATCH << 16);
239	}
240
241	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
242	if (adt == IPSET_TEST \|\|
243	!(tb[IPSET_ATTR_IP_TO] \|\| with_ports \|\| tb[IPSET_ATTR_IP2_TO])) {
244	e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
245	e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
246	ret = adtfn(set, &e, &ext, &ext, flags);
247	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
248	ip_set_eexist(ret, flags) ? 0 : ret;
249	}
250
251	ip_to = ip;
252	if (tb[IPSET_ATTR_IP_TO]) {
253	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
254	if (ret)
255	return ret;
256	if (ip > ip_to)
257	swap(ip, ip_to);
258	if (unlikely(ip + UINT_MAX == ip_to))
259	return -IPSET_ERR_HASH_RANGE;
260	}
261
262	port_to = port = ntohs(e.port);
263	if (tb[IPSET_ATTR_PORT_TO]) {
264	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
265	if (port > port_to)
266	swap(port, port_to);
267	}
268
269	ip2_to = ip2_from;
270	if (tb[IPSET_ATTR_IP2_TO]) {
271	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
272	if (ret)
273	return ret;
274	if (ip2_from > ip2_to)
275	swap(ip2_from, ip2_to);
276	if (unlikely(ip2_from + UINT_MAX == ip2_to))
277	return -IPSET_ERR_HASH_RANGE;
278	}
279
280	if (retried)
281	ip = ntohl(h->next.ip[0]);
282
283	while (!after(ip, ip_to)) {
284	e.ip[0] = htonl(ip);
285	ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
286	e.cidr[0] = cidr;
287	p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
288	: port;
289	for (; p <= port_to; p++) {
290	e.port = htons(p);
291	ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
292	p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
293	: ip2_from;
294	while (!after(ip2, ip2_to)) {
295	e.ip[1] = htonl(ip2);
296	ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
297	&cidr2);
298	e.cidr[1] = cidr2;
299	ret = adtfn(set, &e, &ext, &ext, flags);
300	if (ret && !ip_set_eexist(ret, flags))
301	return ret;
302	else
303	ret = 0;
304	ip2 = ip2_last + 1;
305	}
306	}
307	ip = ip_last + 1;
308	}
309	return ret;
310	}
311
312	/* IPv6 variant */
313
314	struct hash_netportnet6_elem {
315	union nf_inet_addr ip[2];
316	__be16 port;
317	union {
318	u8 cidr[2];
319	u16 ccmp;
320	};
321	u8 nomatch:1;
322	u8 proto;
323	};
324
325	/* Common functions */
326
327	static inline bool
328	hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
329	const struct hash_netportnet6_elem *ip2,
330	u32 *multi)
331	{
332	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
333	ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
334	ip1->ccmp == ip2->ccmp &&
335	ip1->port == ip2->port &&
336	ip1->proto == ip2->proto;
337	}
338
339	static inline int
340	hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
341	{
342	return elem->nomatch ? -ENOTEMPTY : 1;
343	}
344
345	static inline void
346	hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
347	{
348	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
349	}
350
351	static inline void
352	hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem elem, u8 flags)
353	{
354	swap(*flags, elem->nomatch);
355	}
356
357	static inline void
358	hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
359	struct hash_netportnet6_elem *orig)
360	{
361	elem->ip[1] = orig->ip[1];
362	}
363
364	static inline void
365	hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
366	u8 cidr, bool inner)
367	{
368	if (inner) {
369	ip6_netmask(&elem->ip[1], cidr);
370	elem->cidr[1] = cidr;
371	} else {
372	ip6_netmask(&elem->ip[0], cidr);
373	elem->cidr[0] = cidr;
374	}
375	}
376
377	static bool
378	hash_netportnet6_data_list(struct sk_buff *skb,
379	const struct hash_netportnet6_elem *data)
380	{
381	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
382
383	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) \|\|
384	nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) \|\|
385	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
386	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
387	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
388	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
389	(flags &&
390	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
391	goto nla_put_failure;
392	return 0;
393
394	nla_put_failure:
395	return 1;
396	}
397
398	static inline void
399	hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
400	const struct hash_netportnet6_elem *d)
401	{
402	next->port = d->port;
403	}
404
405	#undef MTYPE
406	#undef PF
407	#undef HOST_MASK
408
409	#define MTYPE hash_netportnet6
410	#define PF 6
411	#define HOST_MASK 128
412	#define IP_SET_EMIT_CREATE
413	#include "ip_set_hash_gen.h"
414
415	static int
416	hash_netportnet6_kadt(struct ip_set set, const struct sk_buff skb,
417	const struct xt_action_param *par,
418	enum ipset_adt adt, struct ip_set_adt_opt *opt)
419	{
420	const struct hash_netportnet *h = set->data;
421	ipset_adtfn adtfn = set->variant->adt[adt];
422	struct hash_netportnet6_elem e = {
423	.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
424	.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
425	};
426	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
427
428	if (adt == IPSET_TEST)
429	e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) \| HOST_MASK;
430
431	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
432	&e.port, &e.proto))
433	return -EINVAL;
434
435	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
436	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
437	ip6_netmask(&e.ip[0], e.cidr[0]);
438	ip6_netmask(&e.ip[1], e.cidr[1]);
439
440	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
441	}
442
443	static int
444	hash_netportnet6_uadt(struct ip_set set, struct nlattr tb[],
445	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
446	{
447	const struct hash_netportnet *h = set->data;
448	ipset_adtfn adtfn = set->variant->adt[adt];
449	struct hash_netportnet6_elem e = { .cidr[0] = HOST_MASK,
450	.cidr[1] = HOST_MASK };
451	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
452	u32 port, port_to;
453	bool with_ports = false;
454	int ret;
455
456	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
457	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
458	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
459	!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) \|\|
460	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) \|\|
461	!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) \|\|
462	!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
463	return -IPSET_ERR_PROTOCOL;
464	if (unlikely(tb[IPSET_ATTR_IP_TO] \|\| tb[IPSET_ATTR_IP2_TO]))
465	return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
466
467	if (tb[IPSET_ATTR_LINENO])
468	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
469
470	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) \|\|
471	ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) \|\|
472	ip_set_get_extensions(set, tb, &ext);
473	if (ret)
474	return ret;
475
476	if (tb[IPSET_ATTR_CIDR])
477	e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
478
479	if (tb[IPSET_ATTR_CIDR2])
480	e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
481
482	if (unlikely(!e.cidr[0] \|\| e.cidr[0] > HOST_MASK \|\| !e.cidr[1] \|\|
483	e.cidr[1] > HOST_MASK))
484	return -IPSET_ERR_INVALID_CIDR;
485
486	ip6_netmask(&e.ip[0], e.cidr[0]);
487	ip6_netmask(&e.ip[1], e.cidr[1]);
488
489	if (tb[IPSET_ATTR_PORT])
490	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
491	else
492	return -IPSET_ERR_PROTOCOL;
493
494	if (tb[IPSET_ATTR_PROTO]) {
495	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
496	with_ports = ip_set_proto_with_ports(e.proto);
497
498	if (e.proto == 0)
499	return -IPSET_ERR_INVALID_PROTO;
500	} else
501	return -IPSET_ERR_MISSING_PROTO;
502
503	if (!(with_ports \|\| e.proto == IPPROTO_ICMPV6))
504	e.port = 0;
505
506	if (tb[IPSET_ATTR_CADT_FLAGS]) {
507	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
508	if (cadt_flags & IPSET_FLAG_NOMATCH)
509	flags \|= (IPSET_FLAG_NOMATCH << 16);
510	}
511
512	if (adt == IPSET_TEST \|\| !with_ports \|\| !tb[IPSET_ATTR_PORT_TO]) {
513	ret = adtfn(set, &e, &ext, &ext, flags);
514	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
515	ip_set_eexist(ret, flags) ? 0 : ret;
516	}
517
518	port = ntohs(e.port);
519	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
520	if (port > port_to)
521	swap(port, port_to);
522
523	if (retried)
524	port = ntohs(h->next.port);
525	for (; port <= port_to; port++) {
526	e.port = htons(port);
527	ret = adtfn(set, &e, &ext, &ext, flags);
528
529	if (ret && !ip_set_eexist(ret, flags))
530	return ret;
531	else
532	ret = 0;
533	}
534	return ret;
535	}
536
537	static struct ip_set_type hash_netportnet_type __read_mostly = {
538	.name = "hash:net,port,net",
539	.protocol = IPSET_PROTOCOL,
540	.features = IPSET_TYPE_IP \| IPSET_TYPE_PORT \| IPSET_TYPE_IP2 \|
541	IPSET_TYPE_NOMATCH,
542	.dimension = IPSET_DIM_THREE,
543	.family = NFPROTO_UNSPEC,
544	.revision_min = IPSET_TYPE_REV_MIN,
545	.revision_max = IPSET_TYPE_REV_MAX,
546	.create = hash_netportnet_create,
547	.create_policy = {
548	[IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
549	[IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
550	[IPSET_ATTR_PROBES] = { .type = NLA_U8 },
551	[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
552	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
553	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
554	},
555	.adt_policy = {
556	[IPSET_ATTR_IP] = { .type = NLA_NESTED },
557	[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
558	[IPSET_ATTR_IP2] = { .type = NLA_NESTED },
559	[IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED },
560	[IPSET_ATTR_PORT] = { .type = NLA_U16 },
561	[IPSET_ATTR_PORT_TO] = { .type = NLA_U16 },
562	[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
563	[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
564	[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
565	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
566	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
567	[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
568	[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
569	[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
570	[IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
571	},
572	.me = THIS_MODULE,
573	};
574
575	static int __init
576	hash_netportnet_init(void)
577	{
578	return ip_set_type_register(&hash_netportnet_type);
579	}
580
581	static void __exit
582	hash_netportnet_fini(void)
583	{
584	ip_set_type_unregister(&hash_netportnet_type);
585	}
586
587	module_init(hash_netportnet_init);
588	module_exit(hash_netportnet_fini);