[linux-2.6-block.git] / net / netfilter / ipset / ip_set_hash_ipportip.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,ip 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
/*				1    SCTP and UDPLITE support added */
/*				2    Counters support added */
/*				3    Comments support added */
/*				4    Forceadd support added */
#define IPSET_TYPE_REV_MAX	5 /* skbinfo support added */

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
IP_SET_MODULE_DESC("hash:ip,port,ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
MODULE_ALIAS("ip_set_hash:ip,port,ip");

/* Type specific function prefix */
#define HTYPE		hash_ipportip

/* IPv4 variant */

/* Member elements  */
struct hash_ipportip4_elem {
	__be32 ip;
	__be32 ip2;
	__be16 port;
	u8 proto;
	u8 padding;
};

static inline bool
hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1,
			  const struct hash_ipportip4_elem *ip2,
			  u32 *multi)
{
	return ip1->ip == ip2->ip &&
	       ip1->ip2 == ip2->ip2 &&
	       ip1->port == ip2->port &&
	       ip1->proto == ip2->proto;
}

static bool
hash_ipportip4_data_list(struct sk_buff *skb,
			 const struct hash_ipportip4_elem *data)
{
	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) ||
	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) ||
	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto))
		goto nla_put_failure;
	return false;

nla_put_failure:
	return true;
}

static inline void
hash_ipportip4_data_next(struct hash_ipportip4_elem *next,
			 const struct hash_ipportip4_elem *d)
{
	next->ip = d->ip;
	next->port = d->port;
}

/* Common functions */
#define MTYPE		hash_ipportip4
#define HOST_MASK	32
#include "ip_set_hash_gen.h"

static int
hash_ipportip4_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)
{
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_ipportip4_elem e = { .ip = 0 };
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	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);
	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2);
	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}

static int
hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
		    enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
	const struct hash_ipportip *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_ipportip4_elem e = { .ip = 0 };
	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
	u32 ip, ip_to = 0, p = 0, port, port_to;
	bool with_ports = false;
	int ret;

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

	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)))
		return -IPSET_ERR_PROTOCOL;

	ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip);
	if (ret)
		return ret;

	ret = ip_set_get_extensions(set, tb, &ext);
	if (ret)
		return ret;

	ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &e.ip2);
	if (ret)
		return ret;

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

	ip_to = ip = ntohl(e.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);
	} else if (tb[IPSET_ATTR_CIDR]) {
		u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);

		if (!cidr || cidr > HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
		ip_set_mask_from_to(ip, ip_to, cidr);
	}

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

	if (retried)
		ip = ntohl(h->next.ip);
	for (; !before(ip_to, ip); ip++) {
		p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
						       : port;
		for (; p <= port_to; p++) {
			e.ip = htonl(ip);
			e.port = htons(p);
			ret = adtfn(set, &e, &ext, &ext, flags);

			if (ret && !ip_set_eexist(ret, flags))
				return ret;

			ret = 0;
		}
	}
	return ret;
}

/* IPv6 variant */

struct hash_ipportip6_elem {
	union nf_inet_addr ip;
	union nf_inet_addr ip2;
	__be16 port;
	u8 proto;
	u8 padding;
};

/* Common functions */

static inline bool
hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1,
			  const struct hash_ipportip6_elem *ip2,
			  u32 *multi)
{
	return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) &&
	       ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) &&
	       ip1->port == ip2->port &&
	       ip1->proto == ip2->proto;
}

static bool
hash_ipportip6_data_list(struct sk_buff *skb,
			 const struct hash_ipportip6_elem *data)
{
	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) ||
	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) ||
	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto))
		goto nla_put_failure;
	return false;

nla_put_failure:
	return true;
}

static inline void
hash_ipportip6_data_next(struct hash_ipportip4_elem *next,
			 const struct hash_ipportip6_elem *d)
{
	next->port = d->port;
}

#undef MTYPE
#undef HOST_MASK

#define MTYPE		hash_ipportip6
#define HOST_MASK	128
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"

static int
hash_ipportip6_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)
{
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_ipportip6_elem e = { .ip = { .all = { 0 } } };
	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);

	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.in6);
	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6);
	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}

static int
hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[],
		    enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
	const struct hash_ipportip *h = set->data;
	ipset_adtfn adtfn = set->variant->adt[adt];
	struct hash_ipportip6_elem e = {  .ip = { .all = { 0 } } };
	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]);

	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)))
		return -IPSET_ERR_PROTOCOL;
	if (unlikely(tb[IPSET_ATTR_IP_TO]))
		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
	if (unlikely(tb[IPSET_ATTR_CIDR])) {
		u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);

		if (cidr != HOST_MASK)
			return -IPSET_ERR_INVALID_CIDR;
	}

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

	ret = ip_set_get_extensions(set, tb, &ext);
	if (ret)
		return ret;

	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2);
	if (ret)
		return ret;

	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 (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
		ret = adtfn(set, &e, &ext, &ext, flags);
		return 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_ipportip_type __read_mostly = {
	.name		= "hash:ip,port,ip",
	.protocol	= IPSET_PROTOCOL,
	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2,
	.dimension	= IPSET_DIM_THREE,
	.family		= NFPROTO_UNSPEC,
	.revision_min	= IPSET_TYPE_REV_MIN,
	.revision_max	= IPSET_TYPE_REV_MAX,
	.create		= hash_ipportip_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_PORT]	= { .type = NLA_U16 },
		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
		[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_ipportip_init(void)
{
	return ip_set_type_register(&hash_ipportip_type);
}

static void __exit
hash_ipportip_fini(void)
{
	rcu_barrier();
	ip_set_type_unregister(&hash_ipportip_type);
}

module_init(hash_ipportip_init);
module_exit(hash_ipportip_fini);
Commit	Line	Data
5d50e1d8	1	/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
5663bc30 JK	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,ip 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>
5663bc30 JK	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>
5663bc30 JK	24	#include <linux/netfilter/ipset/ip_set_getport.h>
	25	#include <linux/netfilter/ipset/ip_set_hash.h>
	26
35b8dcf8 JK	27	#define IPSET_TYPE_REV_MIN 0
35b8dcf8 JK	28	/* 1 SCTP and UDPLITE support added */
fda75c6d	29	/* 2 Counters support added */
07cf8f5a	30	/* 3 Comments support added */
af331419 AD	31	/* 4 Forceadd support added */
af331419 AD	32	#define IPSET_TYPE_REV_MAX 5 /* skbinfo support added */
10111a6e	33
5663bc30 JK	34	MODULE_LICENSE("GPL");
5663bc30 JK	35	MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
35b8dcf8	36	IP_SET_MODULE_DESC("hash:ip,port,ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
5663bc30 JK	37	MODULE_ALIAS("ip_set_hash:ip,port,ip");
	38
	39	/* Type specific function prefix */
5d50e1d8	40	#define HTYPE hash_ipportip
5663bc30	41
03c8b234	42	/* IPv4 variant */
5663bc30	43
5d50e1d8	44	/* Member elements */
5663bc30 JK	45	struct hash_ipportip4_elem {
	46	__be32 ip;
	47	__be32 ip2;
	48	__be16 port;
	49	u8 proto;
	50	u8 padding;
	51	};
	52
5663bc30 JK	53	static inline bool
5663bc30 JK	54	hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1,
89dc79b7 JK	55	const struct hash_ipportip4_elem *ip2,
89dc79b7 JK	56	u32 *multi)
5663bc30 JK	57	{
	58	return ip1->ip == ip2->ip &&
	59	ip1->ip2 == ip2->ip2 &&
	60	ip1->port == ip2->port &&
	61	ip1->proto == ip2->proto;
	62	}
	63
5663bc30 JK	64	static bool
5663bc30 JK	65	hash_ipportip4_data_list(struct sk_buff *skb,
ca0f6a5c	66	const struct hash_ipportip4_elem *data)
5663bc30	67	{
7cf7899d DM	68	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) \|\|
	69	nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) \|\|
	70	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
	71	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto))
	72	goto nla_put_failure;
728a7e69	73	return false;
5663bc30 JK	74
5663bc30 JK	75	nla_put_failure:
728a7e69	76	return true;
5663bc30 JK	77	}
5663bc30 JK	78
5d50e1d8 JK	79	static inline void
	80	hash_ipportip4_data_next(struct hash_ipportip4_elem *next,
	81	const struct hash_ipportip4_elem *d)
5663bc30	82	{
5d50e1d8 JK	83	next->ip = d->ip;
5d50e1d8 JK	84	next->port = d->port;
5663bc30 JK	85	}
5663bc30 JK	86
5d50e1d8 JK	87	/* Common functions */
5d50e1d8 JK	88	#define MTYPE hash_ipportip4
5663bc30	89	#define HOST_MASK 32
5d50e1d8	90	#include "ip_set_hash_gen.h"
3d14b171	91
5663bc30 JK	92	static int
5663bc30 JK	93	hash_ipportip4_kadt(struct ip_set set, const struct sk_buff skb,
b66554cf	94	const struct xt_action_param *par,
5d50e1d8	95	enum ipset_adt adt, struct ip_set_adt_opt *opt)
5663bc30	96	{
5663bc30	97	ipset_adtfn adtfn = set->variant->adt[adt];
94729f8a	98	struct hash_ipportip4_elem e = { .ip = 0 };
ca134ce8	99	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
5663bc30	100
ac8cc925	101	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
5d50e1d8	102	&e.port, &e.proto))
5663bc30 JK	103	return -EINVAL;
5663bc30 JK	104
5d50e1d8 JK	105	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
	106	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2);
	107	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
5663bc30 JK	108	}
	109
	110	static int
	111	hash_ipportip4_uadt(struct ip_set set, struct nlattr tb[],
3d14b171	112	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
5663bc30	113	{
5d50e1d8	114	const struct hash_ipportip *h = set->data;
5663bc30	115	ipset_adtfn adtfn = set->variant->adt[adt];
94729f8a	116	struct hash_ipportip4_elem e = { .ip = 0 };
ca134ce8	117	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
20b2fab4	118	u32 ip, ip_to = 0, p = 0, port, port_to;
5e0c1eb7	119	bool with_ports = false;
5663bc30 JK	120	int ret;
5663bc30 JK	121
a212e08e SP	122	if (tb[IPSET_ATTR_LINENO])
	123	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	124
5663bc30 JK	125	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
5663bc30 JK	126	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
7dd37bc8	127	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO)))
5663bc30 JK	128	return -IPSET_ERR_PROTOCOL;
5663bc30 JK	129
8e55d2e5 SP	130	ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip);
	131	if (ret)
	132	return ret;
	133
	134	ret = ip_set_get_extensions(set, tb, &ext);
5663bc30 JK	135	if (ret)
	136	return ret;
	137
5d50e1d8	138	ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &e.ip2);
5663bc30 JK	139	if (ret)
	140	return ret;
	141
d25472e4	142	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
5663bc30 JK	143
5663bc30 JK	144	if (tb[IPSET_ATTR_PROTO]) {
5d50e1d8 JK	145	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
5d50e1d8 JK	146	with_ports = ip_set_proto_with_ports(e.proto);
5663bc30	147
5d50e1d8	148	if (e.proto == 0)
5663bc30	149	return -IPSET_ERR_INVALID_PROTO;
ca0f6a5c	150	} else {
5663bc30	151	return -IPSET_ERR_MISSING_PROTO;
ca0f6a5c	152	}
5663bc30	153
5d50e1d8 JK	154	if (!(with_ports \|\| e.proto == IPPROTO_ICMP))
5d50e1d8 JK	155	e.port = 0;
5663bc30 JK	156
5663bc30 JK	157	if (adt == IPSET_TEST \|\|
5663bc30 JK	158	!(tb[IPSET_ATTR_IP_TO] \|\| tb[IPSET_ATTR_CIDR] \|\|
5663bc30 JK	159	tb[IPSET_ATTR_PORT_TO])) {
5d50e1d8	160	ret = adtfn(set, &e, &ext, &ext, flags);
5663bc30 JK	161	return ip_set_eexist(ret, flags) ? 0 : ret;
	162	}
	163
5d50e1d8	164	ip_to = ip = ntohl(e.ip);
5663bc30 JK	165	if (tb[IPSET_ATTR_IP_TO]) {
	166	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
	167	if (ret)
	168	return ret;
	169	if (ip > ip_to)
	170	swap(ip, ip_to);
	171	} else if (tb[IPSET_ATTR_CIDR]) {
	172	u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
	173
cabfd139	174	if (!cidr \|\| cidr > HOST_MASK)
5663bc30	175	return -IPSET_ERR_INVALID_CIDR;
e6146e86	176	ip_set_mask_from_to(ip, ip_to, cidr);
4fe198e6	177	}
5663bc30	178
5d50e1d8	179	port_to = port = ntohs(e.port);
5e0c1eb7	180	if (with_ports && tb[IPSET_ATTR_PORT_TO]) {
5663bc30 JK	181	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	182	if (port > port_to)
	183	swap(port, port_to);
5e0c1eb7	184	}
5663bc30	185
3d14b171	186	if (retried)
6e27c9b4	187	ip = ntohl(h->next.ip);
3d14b171	188	for (; !before(ip_to, ip); ip++) {
6e27c9b4 JK	189	p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
6e27c9b4 JK	190	: port;
3d14b171	191	for (; p <= port_to; p++) {
5d50e1d8 JK	192	e.ip = htonl(ip);
	193	e.port = htons(p);
	194	ret = adtfn(set, &e, &ext, &ext, flags);
5663bc30 JK	195
	196	if (ret && !ip_set_eexist(ret, flags))
	197	return ret;
ca0f6a5c JK	198
ca0f6a5c JK	199	ret = 0;
5663bc30	200	}
3d14b171	201	}
5663bc30 JK	202	return ret;
	203	}
	204
03c8b234	205	/* IPv6 variant */
5663bc30 JK	206
	207	struct hash_ipportip6_elem {
	208	union nf_inet_addr ip;
	209	union nf_inet_addr ip2;
	210	__be16 port;
	211	u8 proto;
	212	u8 padding;
	213	};
	214
5d50e1d8 JK	215	/* Common functions */
5d50e1d8 JK	216
5663bc30 JK	217	static inline bool
5663bc30 JK	218	hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1,
89dc79b7 JK	219	const struct hash_ipportip6_elem *ip2,
89dc79b7 JK	220	u32 *multi)
5663bc30	221	{
29e3b160 YH	222	return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) &&
29e3b160 YH	223	ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) &&
5663bc30 JK	224	ip1->port == ip2->port &&
	225	ip1->proto == ip2->proto;
	226	}
	227
5663bc30 JK	228	static bool
	229	hash_ipportip6_data_list(struct sk_buff *skb,
	230	const struct hash_ipportip6_elem *data)
	231	{
7cf7899d DM	232	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) \|\|
	233	nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) \|\|
	234	nla_put_net16(skb, IPSET_ATTR_PORT, data->port) \|\|
	235	nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto))
	236	goto nla_put_failure;
728a7e69	237	return false;
5663bc30 JK	238
5663bc30 JK	239	nla_put_failure:
728a7e69	240	return true;
5663bc30 JK	241	}
5663bc30 JK	242
5d50e1d8 JK	243	static inline void
	244	hash_ipportip6_data_next(struct hash_ipportip4_elem *next,
	245	const struct hash_ipportip6_elem *d)
5663bc30	246	{
5d50e1d8	247	next->port = d->port;
5663bc30 JK	248	}
5663bc30 JK	249
5d50e1d8	250	#undef MTYPE
5663bc30 JK	251	#undef HOST_MASK
5663bc30 JK	252
5d50e1d8	253	#define MTYPE hash_ipportip6
5663bc30	254	#define HOST_MASK 128
5d50e1d8 JK	255	#define IP_SET_EMIT_CREATE
5d50e1d8 JK	256	#include "ip_set_hash_gen.h"
3d14b171	257
5663bc30 JK	258	static int
5663bc30 JK	259	hash_ipportip6_kadt(struct ip_set set, const struct sk_buff skb,
b66554cf	260	const struct xt_action_param *par,
5d50e1d8	261	enum ipset_adt adt, struct ip_set_adt_opt *opt)
5663bc30	262	{
5663bc30	263	ipset_adtfn adtfn = set->variant->adt[adt];
94729f8a	264	struct hash_ipportip6_elem e = { .ip = { .all = { 0 } } };
ca134ce8	265	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
5663bc30	266
ac8cc925	267	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
5d50e1d8	268	&e.port, &e.proto))
5663bc30 JK	269	return -EINVAL;
5663bc30 JK	270
5d50e1d8 JK	271	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
	272	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6);
	273	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
5663bc30 JK	274	}
	275
	276	static int
	277	hash_ipportip6_uadt(struct ip_set set, struct nlattr tb[],
3d14b171	278	enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
5663bc30	279	{
5d50e1d8	280	const struct hash_ipportip *h = set->data;
5663bc30	281	ipset_adtfn adtfn = set->variant->adt[adt];
94729f8a	282	struct hash_ipportip6_elem e = { .ip = { .all = { 0 } } };
ca134ce8	283	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
5663bc30	284	u32 port, port_to;
5e0c1eb7	285	bool with_ports = false;
5663bc30 JK	286	int ret;
5663bc30 JK	287
a212e08e SP	288	if (tb[IPSET_ATTR_LINENO])
	289	*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
	290
5663bc30 JK	291	if (unlikely(!tb[IPSET_ATTR_IP] \|\| !tb[IPSET_ATTR_IP2] \|\|
5663bc30 JK	292	!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) \|\|
2c227f27	293	!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO)))
5663bc30	294	return -IPSET_ERR_PROTOCOL;
2c227f27 SP	295	if (unlikely(tb[IPSET_ATTR_IP_TO]))
	296	return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
	297	if (unlikely(tb[IPSET_ATTR_CIDR])) {
	298	u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
	299
	300	if (cidr != HOST_MASK)
	301	return -IPSET_ERR_INVALID_CIDR;
	302	}
5663bc30	303
8e55d2e5 SP	304	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip);
	305	if (ret)
	306	return ret;
	307
	308	ret = ip_set_get_extensions(set, tb, &ext);
5663bc30 JK	309	if (ret)
	310	return ret;
	311
5d50e1d8	312	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2);
5663bc30 JK	313	if (ret)
	314	return ret;
	315
d25472e4	316	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
5663bc30 JK	317
5663bc30 JK	318	if (tb[IPSET_ATTR_PROTO]) {
5d50e1d8 JK	319	e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
5d50e1d8 JK	320	with_ports = ip_set_proto_with_ports(e.proto);
5663bc30	321
5d50e1d8	322	if (e.proto == 0)
5663bc30	323	return -IPSET_ERR_INVALID_PROTO;
ca0f6a5c	324	} else {
5663bc30	325	return -IPSET_ERR_MISSING_PROTO;
ca0f6a5c	326	}
5663bc30	327
5d50e1d8 JK	328	if (!(with_ports \|\| e.proto == IPPROTO_ICMPV6))
5d50e1d8 JK	329	e.port = 0;
5663bc30	330
5e0c1eb7	331	if (adt == IPSET_TEST \|\| !with_ports \|\| !tb[IPSET_ATTR_PORT_TO]) {
5d50e1d8	332	ret = adtfn(set, &e, &ext, &ext, flags);
5663bc30 JK	333	return ip_set_eexist(ret, flags) ? 0 : ret;
	334	}
	335
5d50e1d8	336	port = ntohs(e.port);
5663bc30 JK	337	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
	338	if (port > port_to)
	339	swap(port, port_to);
	340
3d14b171	341	if (retried)
6e27c9b4	342	port = ntohs(h->next.port);
5663bc30	343	for (; port <= port_to; port++) {
5d50e1d8 JK	344	e.port = htons(port);
5d50e1d8 JK	345	ret = adtfn(set, &e, &ext, &ext, flags);
5663bc30 JK	346
	347	if (ret && !ip_set_eexist(ret, flags))
	348	return ret;
ca0f6a5c JK	349
ca0f6a5c JK	350	ret = 0;
5663bc30 JK	351	}
	352	return ret;
	353	}
	354
5663bc30 JK	355	static struct ip_set_type hash_ipportip_type __read_mostly = {
	356	.name = "hash:ip,port,ip",
	357	.protocol = IPSET_PROTOCOL,
	358	.features = IPSET_TYPE_IP \| IPSET_TYPE_PORT \| IPSET_TYPE_IP2,
	359	.dimension = IPSET_DIM_THREE,
c15f1c83	360	.family = NFPROTO_UNSPEC,
35b8dcf8 JK	361	.revision_min = IPSET_TYPE_REV_MIN,
35b8dcf8 JK	362	.revision_max = IPSET_TYPE_REV_MAX,
5663bc30 JK	363	.create = hash_ipportip_create,
	364	.create_policy = {
	365	[IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
	366	[IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
	367	[IPSET_ATTR_PROBES] = { .type = NLA_U8 },
	368	[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
	369	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
00d71b27	370	[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
5663bc30 JK	371	},
	372	.adt_policy = {
	373	[IPSET_ATTR_IP] = { .type = NLA_NESTED },
	374	[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
	375	[IPSET_ATTR_IP2] = { .type = NLA_NESTED },
	376	[IPSET_ATTR_PORT] = { .type = NLA_U16 },
	377	[IPSET_ATTR_PORT_TO] = { .type = NLA_U16 },
	378	[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
	379	[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
	380	[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
	381	[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
00d71b27 JK	382	[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
00d71b27 JK	383	[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
03726186 SP	384	[IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING,
03726186 SP	385	.len = IPSET_MAX_COMMENT_SIZE },
af331419 AD	386	[IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
	387	[IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
	388	[IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
5663bc30 JK	389	},
	390	.me = THIS_MODULE,
	391	};
	392
	393	static int __init
	394	hash_ipportip_init(void)
	395	{
	396	return ip_set_type_register(&hash_ipportip_type);
	397	}
	398
	399	static void __exit
	400	hash_ipportip_fini(void)
	401	{
18f84d41	402	rcu_barrier();
5663bc30 JK	403	ip_set_type_unregister(&hash_ipportip_type);
	404	}
	405
	406	module_init(hash_ipportip_init);
	407	module_exit(hash_ipportip_fini);