[linux-2.6-block.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;
	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 false;

nla_put_failure:
	return true;
}

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 HOST_MASK	32
#include "ip_set_hash_gen.h"

static void
hash_netportnet4_init(struct hash_netportnet4_elem *e)
{
	e->cidr[0] = HOST_MASK;
	e->cidr[1] = HOST_MASK;
}

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] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
	e.cidr[1] = 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;
	int ret;

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

	hash_netportnet4_init(&e);
	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_CADT_FLAGS)))
		return -IPSET_ERR_PROTOCOL;

	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
	if (ret)
		return ret;

	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
	if (ret)
		return ret;

	ret = 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 (!e.cidr[0] || e.cidr[0] > HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
	}

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

	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);

	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, &e.cidr[0]);
		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,
								&e.cidr[1]);
				ret = adtfn(set, &e, &ext, &ext, flags);
				if (ret && !ip_set_eexist(ret, flags))
					return ret;

				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;
	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 false;

nla_put_failure:
	return true;
}

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 HOST_MASK

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

static void
hash_netportnet6_init(struct hash_netportnet6_elem *e)
{
	e->cidr[0] = HOST_MASK;
	e->cidr[1] = HOST_MASK;
}

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

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

	hash_netportnet6_init(&e);
	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_CADT_FLAGS)))
		return -IPSET_ERR_PROTOCOL;
	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;

	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
	if (ret)
		return ret;

	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
	if (ret)
		return ret;

	ret = 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 (!e.cidr[0] || e.cidr[0] > HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
	}

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

	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);

	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;

		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,
					    .len  = IPSET_MAX_COMMENT_SIZE },
		[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)
{
	rcu_barrier();
	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;
2b67d6e0	57	u8 nomatch;
7c3ad056 OS	58	u8 proto;
	59	};
	60
	61	/* Common functions */
	62
	63	static inline bool
	64	hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
ca0f6a5c JK	65	const struct hash_netportnet4_elem *ip2,
ca0f6a5c JK	66	u32 *multi)
7c3ad056 OS	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,
ca0f6a5c	94	struct hash_netportnet4_elem *orig)
7c3ad056 OS	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,
ca0f6a5c	114	const struct hash_netportnet4_elem *data)
7c3ad056 OS	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;
728a7e69	127	return false;
7c3ad056 OS	128
7c3ad056 OS	129	nla_put_failure:
728a7e69	130	return true;
7c3ad056 OS	131	}
	132
	133	static inline void
	134	hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
ca0f6a5c	135	const struct hash_netportnet4_elem *d)
7c3ad056 OS	136	{
	137	next->ipcmp = d->ipcmp;
	138	next->port = d->port;
	139	}
	140
	141	#define MTYPE hash_netportnet4
7c3ad056 OS	142	#define HOST_MASK 32
	143	#include "ip_set_hash_gen.h"
	144
96be5f28 ER	145	static void
	146	hash_netportnet4_init(struct hash_netportnet4_elem *e)
	147	{
	148	e->cidr[0] = HOST_MASK;
	149	e->cidr[1] = HOST_MASK;
	150	}
	151
7c3ad056 OS	152	static int
7c3ad056 OS	153	hash_netportnet4_kadt(struct ip_set set, const struct sk_buff skb,
ca0f6a5c JK	154	const struct xt_action_param *par,
ca0f6a5c JK	155	enum ipset_adt adt, struct ip_set_adt_opt *opt)
7c3ad056 OS	156	{
	157	const struct hash_netportnet *h = set->data;
	158	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	159	struct hash_netportnet4_elem e = { };
7c3ad056 OS	160	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
7c3ad056 OS	161
f690cbae JK	162	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
f690cbae JK	163	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
7c3ad056 OS	164	if (adt == IPSET_TEST)
	165	e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) \| HOST_MASK;
	166
	167	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
	168	&e.port, &e.proto))
	169	return -EINVAL;
	170
	171	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
	172	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
	173	e.ip[0] &= ip_set_netmask(e.cidr[0]);
	174	e.ip[1] &= ip_set_netmask(e.cidr[1]);
	175
	176	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
	177	}
	178
	179	static int
	180	hash_netportnet4_uadt(struct ip_set set, struct nlattr tb[],
ca0f6a5c	181	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
7c3ad056 OS	182	{
	183	const struct hash_netportnet *h = set->data;
	184	ipset_adtfn adtfn = set->variant->adt[adt];
96be5f28	185	struct hash_netportnet4_elem e = { };
7c3ad056 OS	186	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	187	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
	188	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
	189	bool with_ports = false;
7c3ad056 OS	190	int ret;
7c3ad056 OS	191
a212e08e SP	192	if (tb[IPSET_ATTR_LINENO])
	193	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	194
96be5f28	195	hash_netportnet4_init(&e);
7c3ad056 OS	196	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
	197	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
	198	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
7dd37bc8	199	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
7c3ad056 OS	200	return -IPSET_ERR_PROTOCOL;
7c3ad056 OS	201
8e55d2e5 SP	202	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
	203	if (ret)
	204	return ret;
	205
	206	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
	207	if (ret)
	208	return ret;
	209
	210	ret = ip_set_get_extensions(set, tb, &ext);
7c3ad056 OS	211	if (ret)
	212	return ret;
	213
	214	if (tb[IPSET_ATTR_CIDR]) {
aff22758 SP	215	e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
aff22758 SP	216	if (!e.cidr[0] \|\| e.cidr[0] > HOST_MASK)
7c3ad056	217	return -IPSET_ERR_INVALID_CIDR;
7c3ad056 OS	218	}
	219
	220	if (tb[IPSET_ATTR_CIDR2]) {
aff22758 SP	221	e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
aff22758 SP	222	if (!e.cidr[1] \|\| e.cidr[1] > HOST_MASK)
7c3ad056	223	return -IPSET_ERR_INVALID_CIDR;
7c3ad056 OS	224	}
7c3ad056 OS	225
d25472e4	226	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
7c3ad056 OS	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;
ca0f6a5c	234	} else {
7c3ad056	235	return -IPSET_ERR_MISSING_PROTO;
ca0f6a5c	236	}
7c3ad056 OS	237
	238	if (!(with_ports \|\| e.proto == IPPROTO_ICMP))
	239	e.port = 0;
	240
	241	if (tb[IPSET_ATTR_CADT_FLAGS]) {
	242	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
ca0f6a5c	243
7c3ad056 OS	244	if (cadt_flags & IPSET_FLAG_NOMATCH)
	245	flags \|= (IPSET_FLAG_NOMATCH << 16);
	246	}
	247
	248	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
	249	if (adt == IPSET_TEST \|\|
	250	!(tb[IPSET_ATTR_IP_TO] \|\| with_ports \|\| tb[IPSET_ATTR_IP2_TO])) {
	251	e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
	252	e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
	253	ret = adtfn(set, &e, &ext, &ext, flags);
	254	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	255	ip_set_eexist(ret, flags) ? 0 : ret;
	256	}
	257
	258	ip_to = ip;
	259	if (tb[IPSET_ATTR_IP_TO]) {
	260	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
	261	if (ret)
	262	return ret;
	263	if (ip > ip_to)
	264	swap(ip, ip_to);
	265	if (unlikely(ip + UINT_MAX == ip_to))
	266	return -IPSET_ERR_HASH_RANGE;
ca0f6a5c	267	} else {
6e41ee68	268	ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
ca0f6a5c	269	}
7c3ad056 OS	270
	271	port_to = port = ntohs(e.port);
	272	if (tb[IPSET_ATTR_PORT_TO]) {
	273	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	274	if (port > port_to)
	275	swap(port, port_to);
	276	}
	277
	278	ip2_to = ip2_from;
	279	if (tb[IPSET_ATTR_IP2_TO]) {
	280	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
	281	if (ret)
	282	return ret;
	283	if (ip2_from > ip2_to)
	284	swap(ip2_from, ip2_to);
	285	if (unlikely(ip2_from + UINT_MAX == ip2_to))
	286	return -IPSET_ERR_HASH_RANGE;
ca0f6a5c	287	} else {
6e41ee68	288	ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
ca0f6a5c	289	}
7c3ad056 OS	290
	291	if (retried)
	292	ip = ntohl(h->next.ip[0]);
	293
	294	while (!after(ip, ip_to)) {
	295	e.ip[0] = htonl(ip);
aff22758	296	ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
7c3ad056 OS	297	p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
	298	: port;
	299	for (; p <= port_to; p++) {
	300	e.port = htons(p);
	301	ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
	302	p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
	303	: ip2_from;
	304	while (!after(ip2, ip2_to)) {
	305	e.ip[1] = htonl(ip2);
	306	ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
aff22758	307	&e.cidr[1]);
7c3ad056 OS	308	ret = adtfn(set, &e, &ext, &ext, flags);
	309	if (ret && !ip_set_eexist(ret, flags))
	310	return ret;
ca0f6a5c JK	311
ca0f6a5c JK	312	ret = 0;
7c3ad056 OS	313	ip2 = ip2_last + 1;
	314	}
	315	}
	316	ip = ip_last + 1;
	317	}
	318	return ret;
	319	}
	320
	321	/* IPv6 variant */
	322
	323	struct hash_netportnet6_elem {
	324	union nf_inet_addr ip[2];
	325	__be16 port;
	326	union {
	327	u8 cidr[2];
	328	u16 ccmp;
	329	};
cac37639	330	u16 padding;
2b67d6e0	331	u8 nomatch;
7c3ad056 OS	332	u8 proto;
	333	};
	334
	335	/* Common functions */
	336
	337	static inline bool
	338	hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
ca0f6a5c JK	339	const struct hash_netportnet6_elem *ip2,
ca0f6a5c JK	340	u32 *multi)
7c3ad056 OS	341	{
	342	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
	343	ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
	344	ip1->ccmp == ip2->ccmp &&
	345	ip1->port == ip2->port &&
	346	ip1->proto == ip2->proto;
	347	}
	348
	349	static inline int
	350	hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
	351	{
	352	return elem->nomatch ? -ENOTEMPTY : 1;
	353	}
	354
	355	static inline void
	356	hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
	357	{
	358	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
	359	}
	360
	361	static inline void
	362	hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem elem, u8 flags)
	363	{
	364	swap(*flags, elem->nomatch);
	365	}
	366
	367	static inline void
	368	hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
ca0f6a5c	369	struct hash_netportnet6_elem *orig)
7c3ad056 OS	370	{
	371	elem->ip[1] = orig->ip[1];
	372	}
	373
	374	static inline void
	375	hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
	376	u8 cidr, bool inner)
	377	{
	378	if (inner) {
	379	ip6_netmask(&elem->ip[1], cidr);
	380	elem->cidr[1] = cidr;
	381	} else {
	382	ip6_netmask(&elem->ip[0], cidr);
	383	elem->cidr[0] = cidr;
	384	}
	385	}
	386
	387	static bool
	388	hash_netportnet6_data_list(struct sk_buff *skb,
ca0f6a5c	389	const struct hash_netportnet6_elem *data)
7c3ad056 OS	390	{
	391	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
	392
	393	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) \|\|
	394	nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) \|\|
	395	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
	396	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
	397	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
	398	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
	399	(flags &&
	400	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
	401	goto nla_put_failure;
728a7e69	402	return false;
7c3ad056 OS	403
7c3ad056 OS	404	nla_put_failure:
728a7e69	405	return true;
7c3ad056 OS	406	}
	407
	408	static inline void
	409	hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
ca0f6a5c	410	const struct hash_netportnet6_elem *d)
7c3ad056 OS	411	{
	412	next->port = d->port;
	413	}
	414
	415	#undef MTYPE
7c3ad056 OS	416	#undef HOST_MASK
	417
	418	#define MTYPE hash_netportnet6
7c3ad056 OS	419	#define HOST_MASK 128
	420	#define IP_SET_EMIT_CREATE
	421	#include "ip_set_hash_gen.h"
	422
96be5f28 ER	423	static void
	424	hash_netportnet6_init(struct hash_netportnet6_elem *e)
	425	{
	426	e->cidr[0] = HOST_MASK;
	427	e->cidr[1] = HOST_MASK;
	428	}
	429
7c3ad056 OS	430	static int
7c3ad056 OS	431	hash_netportnet6_kadt(struct ip_set set, const struct sk_buff skb,
ca0f6a5c JK	432	const struct xt_action_param *par,
ca0f6a5c JK	433	enum ipset_adt adt, struct ip_set_adt_opt *opt)
7c3ad056 OS	434	{
	435	const struct hash_netportnet *h = set->data;
	436	ipset_adtfn adtfn = set->variant->adt[adt];
1a869205	437	struct hash_netportnet6_elem e = { };
7c3ad056 OS	438	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
7c3ad056 OS	439
f690cbae JK	440	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
f690cbae JK	441	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
7c3ad056 OS	442	if (adt == IPSET_TEST)
	443	e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) \| HOST_MASK;
	444
	445	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
	446	&e.port, &e.proto))
	447	return -EINVAL;
	448
	449	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
	450	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
	451	ip6_netmask(&e.ip[0], e.cidr[0]);
	452	ip6_netmask(&e.ip[1], e.cidr[1]);
	453
	454	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
	455	}
	456
	457	static int
	458	hash_netportnet6_uadt(struct ip_set set, struct nlattr tb[],
ca0f6a5c	459	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
7c3ad056 OS	460	{
	461	const struct hash_netportnet *h = set->data;
	462	ipset_adtfn adtfn = set->variant->adt[adt];
96be5f28	463	struct hash_netportnet6_elem e = { };
7c3ad056 OS	464	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	465	u32 port, port_to;
	466	bool with_ports = false;
	467	int ret;
	468
a212e08e SP	469	if (tb[IPSET_ATTR_LINENO])
	470	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	471
96be5f28	472	hash_netportnet6_init(&e);
7c3ad056 OS	473	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
	474	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
	475	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
7dd37bc8	476	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
7c3ad056 OS	477	return -IPSET_ERR_PROTOCOL;
	478	if (unlikely(tb[IPSET_ATTR_IP_TO] \|\| tb[IPSET_ATTR_IP2_TO]))
	479	return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
	480
8e55d2e5 SP	481	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
	482	if (ret)
	483	return ret;
	484
	485	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
	486	if (ret)
	487	return ret;
	488
	489	ret = ip_set_get_extensions(set, tb, &ext);
7c3ad056 OS	490	if (ret)
	491	return ret;
	492
aff22758	493	if (tb[IPSET_ATTR_CIDR]) {
7c3ad056	494	e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
aff22758 SP	495	if (!e.cidr[0] \|\| e.cidr[0] > HOST_MASK)
	496	return -IPSET_ERR_INVALID_CIDR;
	497	}
7c3ad056	498
aff22758	499	if (tb[IPSET_ATTR_CIDR2]) {
7c3ad056	500	e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
aff22758 SP	501	if (!e.cidr[1] \|\| e.cidr[1] > HOST_MASK)
	502	return -IPSET_ERR_INVALID_CIDR;
	503	}
7c3ad056 OS	504
	505	ip6_netmask(&e.ip[0], e.cidr[0]);
	506	ip6_netmask(&e.ip[1], e.cidr[1]);
	507
d25472e4	508	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
7c3ad056 OS	509
	510	if (tb[IPSET_ATTR_PROTO]) {
	511	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
	512	with_ports = ip_set_proto_with_ports(e.proto);
	513
	514	if (e.proto == 0)
	515	return -IPSET_ERR_INVALID_PROTO;
ca0f6a5c	516	} else {
7c3ad056	517	return -IPSET_ERR_MISSING_PROTO;
ca0f6a5c	518	}
7c3ad056 OS	519
	520	if (!(with_ports \|\| e.proto == IPPROTO_ICMPV6))
	521	e.port = 0;
	522
	523	if (tb[IPSET_ATTR_CADT_FLAGS]) {
	524	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
ca0f6a5c	525
7c3ad056 OS	526	if (cadt_flags & IPSET_FLAG_NOMATCH)
	527	flags \|= (IPSET_FLAG_NOMATCH << 16);
	528	}
	529
	530	if (adt == IPSET_TEST \|\| !with_ports \|\| !tb[IPSET_ATTR_PORT_TO]) {
	531	ret = adtfn(set, &e, &ext, &ext, flags);
	532	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	533	ip_set_eexist(ret, flags) ? 0 : ret;
	534	}
	535
	536	port = ntohs(e.port);
	537	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	538	if (port > port_to)
	539	swap(port, port_to);
	540
	541	if (retried)
	542	port = ntohs(h->next.port);
	543	for (; port <= port_to; port++) {
	544	e.port = htons(port);
	545	ret = adtfn(set, &e, &ext, &ext, flags);
	546
	547	if (ret && !ip_set_eexist(ret, flags))
	548	return ret;
ca0f6a5c JK	549
ca0f6a5c JK	550	ret = 0;
7c3ad056 OS	551	}
	552	return ret;
	553	}
	554
	555	static struct ip_set_type hash_netportnet_type __read_mostly = {
	556	.name = "hash:net,port,net",
	557	.protocol = IPSET_PROTOCOL,
	558	.features = IPSET_TYPE_IP \| IPSET_TYPE_PORT \| IPSET_TYPE_IP2 \|
	559	IPSET_TYPE_NOMATCH,
	560	.dimension = IPSET_DIM_THREE,
	561	.family = NFPROTO_UNSPEC,
	562	.revision_min = IPSET_TYPE_REV_MIN,
	563	.revision_max = IPSET_TYPE_REV_MAX,
	564	.create = hash_netportnet_create,
	565	.create_policy = {
	566	[IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
	567	[IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
	568	[IPSET_ATTR_PROBES] = { .type = NLA_U8 },
	569	[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
	570	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
	571	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
	572	},
	573	.adt_policy = {
	574	[IPSET_ATTR_IP] = { .type = NLA_NESTED },
	575	[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
	576	[IPSET_ATTR_IP2] = { .type = NLA_NESTED },
	577	[IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED },
	578	[IPSET_ATTR_PORT] = { .type = NLA_U16 },
	579	[IPSET_ATTR_PORT_TO] = { .type = NLA_U16 },
	580	[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
	581	[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
	582	[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
	583	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
	584	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
	585	[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
	586	[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
	587	[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
03726186 SP	588	[IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING,
03726186 SP	589	.len = IPSET_MAX_COMMENT_SIZE },
af331419 AD	590	[IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
	591	[IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
	592	[IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
7c3ad056 OS	593	},
	594	.me = THIS_MODULE,
	595	};
	596
	597	static int __init
	598	hash_netportnet_init(void)
	599	{
	600	return ip_set_type_register(&hash_netportnet_type);
	601	}
	602
	603	static void __exit
	604	hash_netportnet_fini(void)
	605	{
18f84d41	606	rcu_barrier();
7c3ad056 OS	607	ip_set_type_unregister(&hash_netportnet_type);
	608	}
	609
	610	module_init(hash_netportnet_init);
	611	module_exit(hash_netportnet_fini);