[thirdparty/ipset.git] / kernel / 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)
{
	rcu_barrier();
	ip_set_type_unregister(&hash_netportnet_type);
}

module_init(hash_netportnet_init);
module_exit(hash_netportnet_fini);
Commit	Line	Data
990de541 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
ca6038b2	28	/* 0 Comments support added */
9c133301 AD	29	/* 1 Forceadd support added */
9c133301 AD	30	#define IPSET_TYPE_REV_MAX 2 /* skbinfo support added */
990de541 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	};
ab144ee5	56	u16 padding;
990de541 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];
864a7f59	153	struct hash_netportnet4_elem e = { };
990de541 OS	154	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
990de541 OS	155
864a7f59 JK	156	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
864a7f59 JK	157	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
990de541 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];
864a7f59	179	struct hash_netportnet4_elem e = { };
990de541 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
864a7f59	187	e.cidr[0] = e.cidr[1] = HOST_MASK;
990de541 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) \|\|
9c133301 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)))
990de541 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]);
1ad6ec25	242
990de541 OS	243	if (cadt_flags & IPSET_FLAG_NOMATCH)
	244	flags \|= (IPSET_FLAG_NOMATCH << 16);
	245	}
	246
	247	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
	248	if (adt == IPSET_TEST \|\|
	249	!(tb[IPSET_ATTR_IP_TO] \|\| with_ports \|\| tb[IPSET_ATTR_IP2_TO])) {
	250	e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
	251	e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
	252	ret = adtfn(set, &e, &ext, &ext, flags);
	253	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	254	ip_set_eexist(ret, flags) ? 0 : ret;
	255	}
	256
	257	ip_to = ip;
	258	if (tb[IPSET_ATTR_IP_TO]) {
	259	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
	260	if (ret)
	261	return ret;
	262	if (ip > ip_to)
	263	swap(ip, ip_to);
	264	if (unlikely(ip + UINT_MAX == ip_to))
	265	return -IPSET_ERR_HASH_RANGE;
a31f30ce SP	266	} else
a31f30ce SP	267	ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
990de541 OS	268
	269	port_to = port = ntohs(e.port);
	270	if (tb[IPSET_ATTR_PORT_TO]) {
	271	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	272	if (port > port_to)
	273	swap(port, port_to);
	274	}
	275
	276	ip2_to = ip2_from;
	277	if (tb[IPSET_ATTR_IP2_TO]) {
	278	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
	279	if (ret)
	280	return ret;
	281	if (ip2_from > ip2_to)
	282	swap(ip2_from, ip2_to);
	283	if (unlikely(ip2_from + UINT_MAX == ip2_to))
	284	return -IPSET_ERR_HASH_RANGE;
a31f30ce SP	285	} else
a31f30ce SP	286	ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
990de541 OS	287
	288	if (retried)
	289	ip = ntohl(h->next.ip[0]);
	290
	291	while (!after(ip, ip_to)) {
	292	e.ip[0] = htonl(ip);
	293	ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
	294	e.cidr[0] = cidr;
	295	p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
	296	: port;
	297	for (; p <= port_to; p++) {
	298	e.port = htons(p);
	299	ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
	300	p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
	301	: ip2_from;
	302	while (!after(ip2, ip2_to)) {
	303	e.ip[1] = htonl(ip2);
	304	ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
	305	&cidr2);
	306	e.cidr[1] = cidr2;
	307	ret = adtfn(set, &e, &ext, &ext, flags);
	308	if (ret && !ip_set_eexist(ret, flags))
	309	return ret;
	310	else
	311	ret = 0;
	312	ip2 = ip2_last + 1;
	313	}
	314	}
	315	ip = ip_last + 1;
	316	}
	317	return ret;
	318	}
	319
	320	/* IPv6 variant */
	321
	322	struct hash_netportnet6_elem {
	323	union nf_inet_addr ip[2];
	324	__be16 port;
	325	union {
	326	u8 cidr[2];
	327	u16 ccmp;
	328	};
ab144ee5	329	u16 padding;
990de541 OS	330	u8 nomatch:1;
	331	u8 proto;
	332	};
	333
	334	/* Common functions */
	335
	336	static inline bool
	337	hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
	338	const struct hash_netportnet6_elem *ip2,
	339	u32 *multi)
	340	{
	341	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
	342	ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
	343	ip1->ccmp == ip2->ccmp &&
	344	ip1->port == ip2->port &&
	345	ip1->proto == ip2->proto;
	346	}
	347
	348	static inline int
	349	hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
	350	{
	351	return elem->nomatch ? -ENOTEMPTY : 1;
	352	}
	353
	354	static inline void
	355	hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
	356	{
	357	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
	358	}
	359
	360	static inline void
	361	hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem elem, u8 flags)
	362	{
	363	swap(*flags, elem->nomatch);
	364	}
	365
	366	static inline void
	367	hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
	368	struct hash_netportnet6_elem *orig)
	369	{
	370	elem->ip[1] = orig->ip[1];
	371	}
	372
	373	static inline void
	374	hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
	375	u8 cidr, bool inner)
	376	{
	377	if (inner) {
	378	ip6_netmask(&elem->ip[1], cidr);
	379	elem->cidr[1] = cidr;
	380	} else {
	381	ip6_netmask(&elem->ip[0], cidr);
	382	elem->cidr[0] = cidr;
	383	}
	384	}
	385
	386	static bool
	387	hash_netportnet6_data_list(struct sk_buff *skb,
	388	const struct hash_netportnet6_elem *data)
	389	{
	390	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
	391
	392	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) \|\|
	393	nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) \|\|
394	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
395	nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) \|\|
396	nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) \|\|
397	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) \|\|
398	(flags &&
399	nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
400	goto nla_put_failure;
401	return 0;
402
403	nla_put_failure:
404	return 1;
405	}
406
407	static inline void
408	hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
409	const struct hash_netportnet6_elem *d)
410	{
411	next->port = d->port;
412	}
413
414	#undef MTYPE
415	#undef PF
416	#undef HOST_MASK
417
418	#define MTYPE hash_netportnet6
419	#define PF 6
420	#define HOST_MASK 128
421	#define IP_SET_EMIT_CREATE
422	#include "ip_set_hash_gen.h"
423
424	static int
425	hash_netportnet6_kadt(struct ip_set set, const struct sk_buff skb,
426	const struct xt_action_param *par,
427	enum ipset_adt adt, struct ip_set_adt_opt *opt)
428	{
429	const struct hash_netportnet *h = set->data;
430	ipset_adtfn adtfn = set->variant->adt[adt];
864a7f59	431	struct hash_netportnet6_elem e = { };
990de541 OS	432	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
990de541 OS	433
864a7f59 JK	434	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
864a7f59 JK	435	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
990de541 OS	436	if (adt == IPSET_TEST)
	437	e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) \| HOST_MASK;
	438
	439	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
	440	&e.port, &e.proto))
	441	return -EINVAL;
	442
	443	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
	444	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
	445	ip6_netmask(&e.ip[0], e.cidr[0]);
	446	ip6_netmask(&e.ip[1], e.cidr[1]);
	447
	448	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
	449	}
	450
	451	static int
	452	hash_netportnet6_uadt(struct ip_set set, struct nlattr tb[],
	453	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
	454	{
	455	const struct hash_netportnet *h = set->data;
	456	ipset_adtfn adtfn = set->variant->adt[adt];
864a7f59	457	struct hash_netportnet6_elem e = { };
990de541 OS	458	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	459	u32 port, port_to;
	460	bool with_ports = false;
	461	int ret;
	462
864a7f59	463	e.cidr[0] = e.cidr[1] = HOST_MASK;
990de541 OS	464	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
	465	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
	466	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) \|\|
	467	!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) \|\|
	468	!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) \|\|
	469	!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) \|\|
9c133301 AD	470	!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) \|\|
	471	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) \|\|
	472	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) \|\|
	473	!ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
990de541 OS	474	return -IPSET_ERR_PROTOCOL;
	475	if (unlikely(tb[IPSET_ATTR_IP_TO] \|\| tb[IPSET_ATTR_IP2_TO]))
	476	return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
	477
	478	if (tb[IPSET_ATTR_LINENO])
	479	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	480
	481	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) \|\|
	482	ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) \|\|
	483	ip_set_get_extensions(set, tb, &ext);
	484	if (ret)
	485	return ret;
	486
	487	if (tb[IPSET_ATTR_CIDR])
	488	e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
	489
	490	if (tb[IPSET_ATTR_CIDR2])
	491	e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
	492
	493	if (unlikely(!e.cidr[0] \|\| e.cidr[0] > HOST_MASK \|\| !e.cidr[1] \|\|
	494	e.cidr[1] > HOST_MASK))
	495	return -IPSET_ERR_INVALID_CIDR;
	496
	497	ip6_netmask(&e.ip[0], e.cidr[0]);
	498	ip6_netmask(&e.ip[1], e.cidr[1]);
	499
	500	if (tb[IPSET_ATTR_PORT])
	501	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
	502	else
	503	return -IPSET_ERR_PROTOCOL;
	504
	505	if (tb[IPSET_ATTR_PROTO]) {
	506	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
	507	with_ports = ip_set_proto_with_ports(e.proto);
	508
	509	if (e.proto == 0)
	510	return -IPSET_ERR_INVALID_PROTO;
	511	} else
	512	return -IPSET_ERR_MISSING_PROTO;
	513
	514	if (!(with_ports \|\| e.proto == IPPROTO_ICMPV6))
	515	e.port = 0;
	516
	517	if (tb[IPSET_ATTR_CADT_FLAGS]) {
	518	u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
1ad6ec25	519
990de541 OS	520	if (cadt_flags & IPSET_FLAG_NOMATCH)
	521	flags \|= (IPSET_FLAG_NOMATCH << 16);
	522	}
	523
	524	if (adt == IPSET_TEST \|\| !with_ports \|\| !tb[IPSET_ATTR_PORT_TO]) {
	525	ret = adtfn(set, &e, &ext, &ext, flags);
	526	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
	527	ip_set_eexist(ret, flags) ? 0 : ret;
	528	}
	529
	530	port = ntohs(e.port);
	531	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	532	if (port > port_to)
	533	swap(port, port_to);
	534
	535	if (retried)
	536	port = ntohs(h->next.port);
	537	for (; port <= port_to; port++) {
	538	e.port = htons(port);
	539	ret = adtfn(set, &e, &ext, &ext, flags);
	540
	541	if (ret && !ip_set_eexist(ret, flags))
	542	return ret;
	543	else
	544	ret = 0;
	545	}
	546	return ret;
	547	}
	548
	549	static struct ip_set_type hash_netportnet_type __read_mostly = {
	550	.name = "hash:net,port,net",
	551	.protocol = IPSET_PROTOCOL,
	552	.features = IPSET_TYPE_IP \| IPSET_TYPE_PORT \| IPSET_TYPE_IP2 \|
	553	IPSET_TYPE_NOMATCH,
	554	.dimension = IPSET_DIM_THREE,
	555	.family = NFPROTO_UNSPEC,
	556	.revision_min = IPSET_TYPE_REV_MIN,
	557	.revision_max = IPSET_TYPE_REV_MAX,
	558	.create = hash_netportnet_create,
	559	.create_policy = {
	560	[IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
	561	[IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
	562	[IPSET_ATTR_PROBES] = { .type = NLA_U8 },
	563	[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
	564	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
	565	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
	566	},
	567	.adt_policy = {
	568	[IPSET_ATTR_IP] = { .type = NLA_NESTED },
	569	[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
	570	[IPSET_ATTR_IP2] = { .type = NLA_NESTED },
	571	[IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED },
	572	[IPSET_ATTR_PORT] = { .type = NLA_U16 },
	573	[IPSET_ATTR_PORT_TO] = { .type = NLA_U16 },
	574	[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
	575	[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
	576	[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
	577	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
	578	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
	579	[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
	580	[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
	581	[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
	582	[IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
9c133301 AD	583	[IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
	584	[IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
	585	[IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
990de541 OS	586	},
	587	.me = THIS_MODULE,
	588	};
	589
	590	static int __init
	591	hash_netportnet_init(void)
	592	{
	593	return ip_set_type_register(&hash_netportnet_type);
	594	}
	595
	596	static void __exit
	597	hash_netportnet_fini(void)
	598	{
2ca175d7	599	rcu_barrier();
990de541 OS	600	ip_set_type_unregister(&hash_netportnet_type);
	601	}
	602
	603	module_init(hash_netportnet_init);
	604	module_exit(hash_netportnet_fini);