[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
/*				0    Comments support added */
/*				1    Forceadd support added */
#define IPSET_TYPE_REV_MAX	2 /* skbinfo 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;
	};
	u16 padding;
	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 = { };
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
	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 = { };
	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;

	e.cidr[0] = e.cidr[1] = HOST_MASK;
	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) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
		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;
	} else
		ip_set_mask_from_to(ip, ip_to, e.cidr[0]);

	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;
	} else
		ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);

	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;
	};
	u16 padding;
	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 = { };
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
	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 = { };
	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	u32 port, port_to;
	bool with_ports = false;
	int ret;

	e.cidr[0] = e.cidr[1] = HOST_MASK;
	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) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
		     !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
		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 },
		[IPSET_ATTR_SKBMARK]	= { .type = NLA_U64 },
		[IPSET_ATTR_SKBPRIO]	= { .type = NLA_U32 },
		[IPSET_ATTR_SKBQUEUE]	= { .type = NLA_U16 },
	},
	.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
07cf8f5a	28	/* 0 Comments support added */
af331419 AD	29	/* 1 Forceadd support added */
af331419 AD	30	#define IPSET_TYPE_REV_MAX 2 /* skbinfo support added */
7c3ad056 OS	31
	32	MODULE_LICENSE("GPL");
	33	MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
	34	IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
	35	MODULE_ALIAS("ip_set_hash:net,port,net");
	36
	37	/* Type specific function prefix */
	38	#define HTYPE hash_netportnet
	39	#define IP_SET_HASH_WITH_PROTO
	40	#define IP_SET_HASH_WITH_NETS
	41	#define IPSET_NET_COUNT 2
	42
	43	/* IPv4 variant */
	44
	45	/* Member elements */
	46	struct hash_netportnet4_elem {
	47	union {
	48	__be32 ip[2];
	49	__be64 ipcmp;
	50	};
	51	__be16 port;
	52	union {
	53	u8 cidr[2];
	54	u16 ccmp;
	55	};
cac37639	56	u16 padding;
7c3ad056 OS	57	u8 nomatch:1;
	58	u8 proto;
	59	};
	60
	61	/* Common functions */
	62
	63	static inline bool
	64	hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
	65	const struct hash_netportnet4_elem *ip2,
	66	u32 *multi)
	67	{
	68	return ip1->ipcmp == ip2->ipcmp &&
	69	ip1->ccmp == ip2->ccmp &&
	70	ip1->port == ip2->port &&
	71	ip1->proto == ip2->proto;
	72	}
	73
	74	static inline int
	75	hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
	76	{
	77	return elem->nomatch ? -ENOTEMPTY : 1;
	78	}
	79
	80	static inline void
	81	hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
	82	{
	83	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
	84	}
	85
	86	static inline void
	87	hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem elem, u8 flags)
	88	{
	89	swap(*flags, elem->nomatch);
	90	}
	91
	92	static inline void
	93	hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
	94	struct hash_netportnet4_elem *orig)
	95	{
	96	elem->ip[1] = orig->ip[1];
	97	}
	98
	99	static inline void
	100	hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
	101	u8 cidr, bool inner)
	102	{
	103	if (inner) {
	104	elem->ip[1] &= ip_set_netmask(cidr);
	105	elem->cidr[1] = cidr;
	106	} else {
	107	elem->ip[0] &= ip_set_netmask(cidr);
	108	elem->cidr[0] = cidr;
	109	}
	110	}
	111
	112	static bool
	113	hash_netportnet4_data_list(struct sk_buff *skb,
	114	const struct hash_netportnet4_elem *data)
	115	{
	116	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
	117
	118	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) \|\|
	119	nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) \|\|
	120	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
121	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
122	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
123	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
124	(flags &&
125	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
126	goto nla_put_failure;
127	return 0;
128
129	nla_put_failure:
130	return 1;
131	}
132
133	static inline void
134	hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
135	const struct hash_netportnet4_elem *d)
136	{
137	next->ipcmp = d->ipcmp;
138	next->port = d->port;
139	}
140
141	#define MTYPE hash_netportnet4
142	#define PF 4
143	#define HOST_MASK 32
144	#include "ip_set_hash_gen.h"
145
146	static int
147	hash_netportnet4_kadt(struct ip_set set, const struct sk_buff skb,
148	const struct xt_action_param *par,
149	enum ipset_adt adt, struct ip_set_adt_opt *opt)
150	{
151	const struct hash_netportnet *h = set->data;
152	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	153	struct hash_netportnet4_elem e = { };
7c3ad056 OS	154	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
7c3ad056 OS	155
1a869205 JK	156	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
1a869205 JK	157	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
7c3ad056 OS	158	if (adt == IPSET_TEST)
	159	e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) \| HOST_MASK;
	160
	161	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
	162	&e.port, &e.proto))
	163	return -EINVAL;
	164
	165	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
	166	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
	167	e.ip[0] &= ip_set_netmask(e.cidr[0]);
	168	e.ip[1] &= ip_set_netmask(e.cidr[1]);
	169
	170	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
	171	}
	172
	173	static int
	174	hash_netportnet4_uadt(struct ip_set set, struct nlattr tb[],
	175	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
	176	{
	177	const struct hash_netportnet *h = set->data;
	178	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	179	struct hash_netportnet4_elem e = { };
7c3ad056 OS	180	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	181	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
	182	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
	183	bool with_ports = false;
	184	u8 cidr, cidr2;
	185	int ret;
	186
1a869205	187	e.cidr[0] = e.cidr[1] = HOST_MASK;
7c3ad056 OS	188	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
	189	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
	190	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
	191	!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) \|\|
	192	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) \|\|
	193	!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) \|\|
af331419 AD	194	!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) \|\|
	195	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) \|\|
	196	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) \|\|
	197	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
7c3ad056 OS	198	return -IPSET_ERR_PROTOCOL;
	199
	200	if (tb[IPSET_ATTR_LINENO])
	201	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	202
	203	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) \|\|
	204	ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) \|\|
	205	ip_set_get_extensions(set, tb, &ext);
	206	if (ret)
	207	return ret;
	208
	209	if (tb[IPSET_ATTR_CIDR]) {
	210	cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
	211	if (!cidr \|\| cidr > HOST_MASK)
	212	return -IPSET_ERR_INVALID_CIDR;
	213	e.cidr[0] = cidr;
	214	}
	215
	216	if (tb[IPSET_ATTR_CIDR2]) {
	217	cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
	218	if (!cidr \|\| cidr > HOST_MASK)
	219	return -IPSET_ERR_INVALID_CIDR;
	220	e.cidr[1] = cidr;
	221	}
	222
	223	if (tb[IPSET_ATTR_PORT])
	224	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
	225	else
	226	return -IPSET_ERR_PROTOCOL;
	227
	228	if (tb[IPSET_ATTR_PROTO]) {
	229	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
	230	with_ports = ip_set_proto_with_ports(e.proto);
	231
	232	if (e.proto == 0)
	233	return -IPSET_ERR_INVALID_PROTO;
	234	} else
	235	return -IPSET_ERR_MISSING_PROTO;
	236
	237	if (!(with_ports \|\| e.proto == IPPROTO_ICMP))
	238	e.port = 0;
	239
	240	if (tb[IPSET_ATTR_CADT_FLAGS]) {
	241	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
	242	if (cadt_flags & IPSET_FLAG_NOMATCH)
	243	flags \|= (IPSET_FLAG_NOMATCH << 16);
	244	}
	245
	246	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
	247	if (adt == IPSET_TEST \|\|
	248	!(tb[IPSET_ATTR_IP_TO] \|\| with_ports \|\| tb[IPSET_ATTR_IP2_TO])) {
	249	e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
	250	e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
	251	ret = adtfn(set, &e, &ext, &ext, flags);
	252	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	253	ip_set_eexist(ret, flags) ? 0 : ret;
	254	}
	255
	256	ip_to = ip;
	257	if (tb[IPSET_ATTR_IP_TO]) {
	258	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
	259	if (ret)
	260	return ret;
	261	if (ip > ip_to)
262	swap(ip, ip_to);
263	if (unlikely(ip + UINT_MAX == ip_to))
264	return -IPSET_ERR_HASH_RANGE;
6e41ee68 SP	265	} else
6e41ee68 SP	266	ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
7c3ad056 OS	267
	268	port_to = port = ntohs(e.port);
	269	if (tb[IPSET_ATTR_PORT_TO]) {
	270	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	271	if (port > port_to)
	272	swap(port, port_to);
	273	}
	274
	275	ip2_to = ip2_from;
	276	if (tb[IPSET_ATTR_IP2_TO]) {
	277	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
	278	if (ret)
	279	return ret;
	280	if (ip2_from > ip2_to)
	281	swap(ip2_from, ip2_to);
	282	if (unlikely(ip2_from + UINT_MAX == ip2_to))
	283	return -IPSET_ERR_HASH_RANGE;
6e41ee68 SP	284	} else
6e41ee68 SP	285	ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
7c3ad056 OS	286
	287	if (retried)
	288	ip = ntohl(h->next.ip[0]);
	289
	290	while (!after(ip, ip_to)) {
	291	e.ip[0] = htonl(ip);
	292	ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
	293	e.cidr[0] = cidr;
	294	p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
	295	: port;
	296	for (; p <= port_to; p++) {
	297	e.port = htons(p);
	298	ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
	299	p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
	300	: ip2_from;
	301	while (!after(ip2, ip2_to)) {
	302	e.ip[1] = htonl(ip2);
	303	ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
	304	&cidr2);
	305	e.cidr[1] = cidr2;
	306	ret = adtfn(set, &e, &ext, &ext, flags);
	307	if (ret && !ip_set_eexist(ret, flags))
	308	return ret;
	309	else
	310	ret = 0;
	311	ip2 = ip2_last + 1;
	312	}
	313	}
	314	ip = ip_last + 1;
	315	}
	316	return ret;
	317	}
	318
	319	/* IPv6 variant */
	320
	321	struct hash_netportnet6_elem {
	322	union nf_inet_addr ip[2];
	323	__be16 port;
	324	union {
	325	u8 cidr[2];
	326	u16 ccmp;
	327	};
cac37639	328	u16 padding;
7c3ad056 OS	329	u8 nomatch:1;
	330	u8 proto;
	331	};
	332
	333	/* Common functions */
	334
	335	static inline bool
	336	hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
	337	const struct hash_netportnet6_elem *ip2,
	338	u32 *multi)
	339	{
	340	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
	341	ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
	342	ip1->ccmp == ip2->ccmp &&
	343	ip1->port == ip2->port &&
	344	ip1->proto == ip2->proto;
	345	}
	346
	347	static inline int
	348	hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
	349	{
	350	return elem->nomatch ? -ENOTEMPTY : 1;
	351	}
	352
	353	static inline void
	354	hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
	355	{
	356	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
	357	}
	358
	359	static inline void
	360	hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem elem, u8 flags)
	361	{
	362	swap(*flags, elem->nomatch);
	363	}
	364
	365	static inline void
	366	hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
	367	struct hash_netportnet6_elem *orig)
	368	{
	369	elem->ip[1] = orig->ip[1];
	370	}
	371
	372	static inline void
	373	hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
	374	u8 cidr, bool inner)
	375	{
	376	if (inner) {
	377	ip6_netmask(&elem->ip[1], cidr);
	378	elem->cidr[1] = cidr;
	379	} else {
	380	ip6_netmask(&elem->ip[0], cidr);
	381	elem->cidr[0] = cidr;
	382	}
	383	}
	384
	385	static bool
	386	hash_netportnet6_data_list(struct sk_buff *skb,
	387	const struct hash_netportnet6_elem *data)
	388	{
	389	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
	390
	391	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) \|\|
	392	nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) \|\|
393	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
394	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
395	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
396	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
397	(flags &&
398	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
399	goto nla_put_failure;
400	return 0;
401
402	nla_put_failure:
403	return 1;
404	}
405
406	static inline void
407	hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
408	const struct hash_netportnet6_elem *d)
409	{
410	next->port = d->port;
411	}
412
413	#undef MTYPE
414	#undef PF
415	#undef HOST_MASK
416
417	#define MTYPE hash_netportnet6
418	#define PF 6
419	#define HOST_MASK 128
420	#define IP_SET_EMIT_CREATE
421	#include "ip_set_hash_gen.h"
422
423	static int
424	hash_netportnet6_kadt(struct ip_set set, const struct sk_buff skb,
425	const struct xt_action_param *par,
426	enum ipset_adt adt, struct ip_set_adt_opt *opt)
427	{
428	const struct hash_netportnet *h = set->data;
429	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	430	struct hash_netportnet6_elem e = { };
7c3ad056 OS	431	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
7c3ad056 OS	432
1a869205 JK	433	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
1a869205 JK	434	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
7c3ad056 OS	435	if (adt == IPSET_TEST)
	436	e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) \| HOST_MASK;
	437
	438	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
	439	&e.port, &e.proto))
	440	return -EINVAL;
	441
	442	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
	443	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
	444	ip6_netmask(&e.ip[0], e.cidr[0]);
	445	ip6_netmask(&e.ip[1], e.cidr[1]);
	446
	447	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
	448	}
	449
	450	static int
	451	hash_netportnet6_uadt(struct ip_set set, struct nlattr tb[],
	452	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
	453	{
	454	const struct hash_netportnet *h = set->data;
	455	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	456	struct hash_netportnet6_elem e = { };
7c3ad056 OS	457	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	458	u32 port, port_to;
	459	bool with_ports = false;
	460	int ret;
	461
1a869205	462	e.cidr[0] = e.cidr[1] = HOST_MASK;
7c3ad056 OS	463	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
	464	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
	465	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
	466	!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) \|\|
	467	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) \|\|
	468	!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) \|\|
af331419 AD	469	!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) \|\|
	470	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) \|\|
	471	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) \|\|
	472	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
7c3ad056 OS	473	return -IPSET_ERR_PROTOCOL;
	474	if (unlikely(tb[IPSET_ATTR_IP_TO] \|\| tb[IPSET_ATTR_IP2_TO]))
	475	return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
	476
	477	if (tb[IPSET_ATTR_LINENO])
	478	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	479
	480	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) \|\|
	481	ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) \|\|
	482	ip_set_get_extensions(set, tb, &ext);
	483	if (ret)
	484	return ret;
	485
	486	if (tb[IPSET_ATTR_CIDR])
	487	e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
	488
	489	if (tb[IPSET_ATTR_CIDR2])
	490	e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
	491
	492	if (unlikely(!e.cidr[0] \|\| e.cidr[0] > HOST_MASK \|\| !e.cidr[1] \|\|
	493	e.cidr[1] > HOST_MASK))
	494	return -IPSET_ERR_INVALID_CIDR;
	495
	496	ip6_netmask(&e.ip[0], e.cidr[0]);
	497	ip6_netmask(&e.ip[1], e.cidr[1]);
	498
	499	if (tb[IPSET_ATTR_PORT])
	500	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
	501	else
	502	return -IPSET_ERR_PROTOCOL;
	503
	504	if (tb[IPSET_ATTR_PROTO]) {
	505	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
	506	with_ports = ip_set_proto_with_ports(e.proto);
	507
	508	if (e.proto == 0)
	509	return -IPSET_ERR_INVALID_PROTO;
	510	} else
	511	return -IPSET_ERR_MISSING_PROTO;
	512
	513	if (!(with_ports \|\| e.proto == IPPROTO_ICMPV6))
	514	e.port = 0;
	515
	516	if (tb[IPSET_ATTR_CADT_FLAGS]) {
	517	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
	518	if (cadt_flags & IPSET_FLAG_NOMATCH)
	519	flags \|= (IPSET_FLAG_NOMATCH << 16);
	520	}
	521
	522	if (adt == IPSET_TEST \|\| !with_ports \|\| !tb[IPSET_ATTR_PORT_TO]) {
	523	ret = adtfn(set, &e, &ext, &ext, flags);
	524	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	525	ip_set_eexist(ret, flags) ? 0 : ret;
	526	}
	527
	528	port = ntohs(e.port);
	529	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	530	if (port > port_to)
	531	swap(port, port_to);
	532
	533	if (retried)
	534	port = ntohs(h->next.port);
	535	for (; port <= port_to; port++) {
	536	e.port = htons(port);
537	ret = adtfn(set, &e, &ext, &ext, flags);
538
539	if (ret && !ip_set_eexist(ret, flags))
540	return ret;
541	else
542	ret = 0;
543	}
544	return ret;
545	}
546
547	static struct ip_set_type hash_netportnet_type __read_mostly = {
548	.name = "hash:net,port,net",
549	.protocol = IPSET_PROTOCOL,
550	.features = IPSET_TYPE_IP \| IPSET_TYPE_PORT \| IPSET_TYPE_IP2 \|
551	IPSET_TYPE_NOMATCH,
552	.dimension = IPSET_DIM_THREE,
553	.family = NFPROTO_UNSPEC,
554	.revision_min = IPSET_TYPE_REV_MIN,
555	.revision_max = IPSET_TYPE_REV_MAX,
556	.create = hash_netportnet_create,
557	.create_policy = {
558	[IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
559	[IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
560	[IPSET_ATTR_PROBES] = { .type = NLA_U8 },
561	[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
562	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
563	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
564	},
565	.adt_policy = {
566	[IPSET_ATTR_IP] = { .type = NLA_NESTED },
567	[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
568	[IPSET_ATTR_IP2] = { .type = NLA_NESTED },
569	[IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED },
570	[IPSET_ATTR_PORT] = { .type = NLA_U16 },
571	[IPSET_ATTR_PORT_TO] = { .type = NLA_U16 },
572	[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
573	[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
574	[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
575	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
576	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
577	[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
578	[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
579	[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
580	[IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
af331419 AD	581	[IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
	582	[IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
	583	[IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
7c3ad056 OS	584	},
	585	.me = THIS_MODULE,
	586	};
	587
	588	static int __init
	589	hash_netportnet_init(void)
	590	{
	591	return ip_set_type_register(&hash_netportnet_type);
	592	}
	593
	594	static void __exit
	595	hash_netportnet_fini(void)
	596	{
	597	ip_set_type_unregister(&hash_netportnet_type);
	598	}
	599
	600	module_init(hash_netportnet_init);
	601	module_exit(hash_netportnet_fini);