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netfilter: ipset: Add hash:net,net module to kernel. 

This adds a new set that provides the ability to configure pairs of
subnets. A small amount of additional handling code has been added to
the generic hash header file - this code is conditionally activated by a
preprocessor definition.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
This commit is contained in:
Oliver Smith 2013-09-20 10:13:53 +02:00 committed by Jozsef Kadlecsik
parent d9628bbeca
commit ea53ac5b63
4 changed files with 541 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
net/netfilter/ipset/Kconfig
View File

@ -99,6 +99,15 @@ config IP_SET_HASH_NET
To compile it as a module, choose M here. If unsure, say N.
config IP_SET_HASH_NETNET
tristate "hash:net,net set support"
depends on IP_SET
help
This option adds the hash:net,net set type support, by which
one can store IPv4/IPv6 network address/prefix pairs in a set.
To compile it as a module, choose M here. If unsure, say N.
config IP_SET_HASH_NETPORT
tristate "hash:net,port set support"
depends on IP_SET

1
net/netfilter/ipset/Makefile
View File

@ -20,6 +20,7 @@ obj-$(CONFIG_IP_SET_HASH_IPPORTNET) += ip_set_hash_ipportnet.o
obj-$(CONFIG_IP_SET_HASH_NET) += ip_set_hash_net.o
obj-$(CONFIG_IP_SET_HASH_NETPORT) += ip_set_hash_netport.o
obj-$(CONFIG_IP_SET_HASH_NETIFACE) += ip_set_hash_netiface.o
obj-$(CONFIG_IP_SET_HASH_NETNET) += ip_set_hash_netnet.o
# list types
obj-$(CONFIG_IP_SET_LIST_SET) += ip_set_list_set.o

58
net/netfilter/ipset/ip_set_hash_gen.h
View File

@ -142,11 +142,16 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
}
#ifdef IP_SET_HASH_WITH_NETS
#if IPSET_NET_COUNT > 1
#define __CIDR(cidr, i) (cidr[i])
#else
#define __CIDR(cidr, i) (cidr)
#endif
#ifdef IP_SET_HASH_WITH_NETS_PACKED
/* When cidr is packed with nomatch, cidr - 1 is stored in the entry */
#define CIDR(cidr) (cidr + 1)
#define CIDR(cidr, i) (__CIDR(cidr, i) + 1)
#else
#define CIDR(cidr) (cidr)
#define CIDR(cidr, i) (__CIDR(cidr, i))
#endif
#define SET_HOST_MASK(family) (family == AF_INET ? 32 : 128)
@ -210,6 +215,7 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
#define mtype_do_data_match(d) 1
#endif
#define mtype_data_set_flags IPSET_TOKEN(MTYPE, _data_set_flags)
#define mtype_data_reset_elem IPSET_TOKEN(MTYPE, _data_reset_elem)
#define mtype_data_reset_flags IPSET_TOKEN(MTYPE, _data_reset_flags)
#define mtype_data_netmask IPSET_TOKEN(MTYPE, _data_netmask)
#define mtype_data_list IPSET_TOKEN(MTYPE, _data_list)
@ -461,6 +467,9 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
struct mtype_elem *data;
u32 i;
int j;
#ifdef IP_SET_HASH_WITH_NETS
u8 k;
#endif
rcu_read_lock_bh();
t = rcu_dereference_bh(h->table);
@ -471,8 +480,9 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
if (ip_set_timeout_expired(ext_timeout(data, set))) {
pr_debug("expired %u/%u\n", i, j);
#ifdef IP_SET_HASH_WITH_NETS
mtype_del_cidr(h, CIDR(data->cidr),
nets_length, 0);
for (k = 0; k < IPSET_NET_COUNT; k++)
mtype_del_cidr(h, CIDR(data->cidr, k),
nets_length, k);
#endif
ip_set_ext_destroy(set, data);
if (j != n->pos - 1)
@ -658,8 +668,12 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
/* Fill out reused slot */
data = ahash_data(n, j, set->dsize);
#ifdef IP_SET_HASH_WITH_NETS
mtype_del_cidr(h, CIDR(data->cidr), NLEN(set->family), 0);
mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
for (i = 0; i < IPSET_NET_COUNT; i++) {
mtype_del_cidr(h, CIDR(data->cidr, i),
NLEN(set->family), i);
mtype_add_cidr(h, CIDR(d->cidr, i),
NLEN(set->family), i);
}
#endif
ip_set_ext_destroy(set, data);
} else {
@ -673,7 +687,9 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
}
data = ahash_data(n, n->pos++, set->dsize);
#ifdef IP_SET_HASH_WITH_NETS
mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
for (i = 0; i < IPSET_NET_COUNT; i++)
mtype_add_cidr(h, CIDR(d->cidr, i), NLEN(set->family),
i);
#endif
h->elements++;
}
@ -704,6 +720,9 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
struct mtype_elem *data;
struct hbucket *n;
int i, ret = -IPSET_ERR_EXIST;
#ifdef IP_SET_HASH_WITH_NETS
u8 j;
#endif
u32 key, multi = 0;
rcu_read_lock_bh();
@ -725,7 +744,9 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
n->pos--;
h->elements--;
#ifdef IP_SET_HASH_WITH_NETS
mtype_del_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
for (j = 0; j < IPSET_NET_COUNT; j++)
mtype_del_cidr(h, CIDR(d->cidr, j), NLEN(set->family),
j);
#endif
ip_set_ext_destroy(set, data);
if (n->pos + AHASH_INIT_SIZE < n->size) {
@ -772,13 +793,26 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
struct htable *t = rcu_dereference_bh(h->table);
struct hbucket *n;
struct mtype_elem *data;
#if IPSET_NET_COUNT == 2
struct mtype_elem orig = *d;
int i, j = 0, k;
#else
int i, j = 0;
#endif
u32 key, multi = 0;
u8 nets_length = NLEN(set->family);
pr_debug("test by nets\n");
for (; j < nets_length && h->nets[j].nets[0] && !multi; j++) {
#if IPSET_NET_COUNT == 2
mtype_data_reset_elem(d, &orig);
mtype_data_netmask(d, h->nets[j].cidr[0], false);
for (k = 0; k < nets_length && h->nets[k].nets[1] && !multi;
k++) {
mtype_data_netmask(d, h->nets[k].cidr[1], true);
#else
mtype_data_netmask(d, h->nets[j].cidr[0]);
#endif
key = HKEY(d, h->initval, t->htable_bits);
n = hbucket(t, key);
for (i = 0; i < n->pos; i++) {
@ -798,6 +832,9 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
return mtype_data_match(data, ext,
mext, set, flags);
}
#if IPSET_NET_COUNT == 2
}
#endif
}
return 0;
}
@ -821,7 +858,10 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
#ifdef IP_SET_HASH_WITH_NETS
/* If we test an IP address and not a network address,
* try all possible network sizes */
if (CIDR(d->cidr) == SET_HOST_MASK(set->family)) {
for (i = 0; i < IPSET_NET_COUNT; i++)
if (CIDR(d->cidr, i) != SET_HOST_MASK(set->family))
break;
if (i == IPSET_NET_COUNT) {
ret = mtype_test_cidrs(set, d, ext, mext, flags);
goto out;
}

482
net/netfilter/ipset/ip_set_hash_netnet.c Normal file
View File

@ -0,0 +1,482 @@
/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* Copyright (C) 2013 Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
*
* 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: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 <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
#define IPSET_TYPE_REV_MIN 0
#define IPSET_TYPE_REV_MAX 0
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,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
MODULE_ALIAS("ip_set_hash:net,net");
/* Type specific function prefix */
#define HTYPE hash_netnet
#define IP_SET_HASH_WITH_NETS
#define IPSET_NET_COUNT 2
/* IPv4 variants */
/* Member elements */
struct hash_netnet4_elem {
union {
__be32 ip[2];
__be64 ipcmp;
};
u8 nomatch;
union {
u8 cidr[2];
u16 ccmp;
};
};
/* Common functions */
static inline bool
hash_netnet4_data_equal(const struct hash_netnet4_elem *ip1,
const struct hash_netnet4_elem *ip2,
u32 *multi)
{
return ip1->ipcmp == ip2->ipcmp &&
ip2->ccmp == ip2->ccmp;
}
static inline int
hash_netnet4_do_data_match(const struct hash_netnet4_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netnet4_data_set_flags(struct hash_netnet4_elem *elem, u32 flags)
{
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_netnet4_data_reset_flags(struct hash_netnet4_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_netnet4_data_reset_elem(struct hash_netnet4_elem *elem,
struct hash_netnet4_elem *orig)
{
elem->ip[1] = orig->ip[1];
}
static inline void
hash_netnet4_data_netmask(struct hash_netnet4_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_netnet4_data_list(struct sk_buff *skb,
const struct hash_netnet4_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_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
(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_netnet4_data_next(struct hash_netnet4_elem *next,
const struct hash_netnet4_elem *d)
{
next->ipcmp = d->ipcmp;
}
#define MTYPE hash_netnet4
#define PF 4
#define HOST_MASK 32
#include "ip_set_hash_gen.h"
static int
hash_netnet4_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_netnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netnet4_elem e = {
.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK,
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
if (adt == IPSET_TEST)
e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
ip4addrptr(skb, opt->flags & IPSET_DIM_TWO_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_netnet4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct hash_netnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netnet4_elem e = { .cidr[0] = HOST_MASK,
.cidr[1] = HOST_MASK };
struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
u32 ip = 0, ip_to = 0, last;
u32 ip2 = 0, ip2_from = 0, ip2_to = 0, last2;
u8 cidr, cidr2;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR]) {
cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!cidr || cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
e.cidr[0] = cidr;
}
if (tb[IPSET_ATTR_CIDR2]) {
cidr2 = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
if (!cidr2 || cidr2 > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
e.cidr[1] = cidr2;
}
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 || !(tb[IPSET_ATTR_IP_TO] &&
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_to < ip)
swap(ip, ip_to);
if (ip + UINT_MAX == ip_to)
return -IPSET_ERR_HASH_RANGE;
}
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_to < ip2_from)
swap(ip2_from, ip2_to);
if (ip2_from + UINT_MAX == ip2_to)
return -IPSET_ERR_HASH_RANGE;
}
if (retried)
ip = ntohl(h->next.ip[0]);
while (!after(ip, ip_to)) {
e.ip[0] = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &cidr);
e.cidr[0] = cidr;
ip2 = (retried &&
ip == ntohl(h->next.ip[0])) ? ntohl(h->next.ip[1])
: ip2_from;
while (!after(ip2, ip2_to)) {
e.ip[1] = htonl(ip2);
last2 = 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 = last2 + 1;
}
ip = last + 1;
}
return ret;
}
/* IPv6 variants */
struct hash_netnet6_elem {
union nf_inet_addr ip[2];
u8 nomatch;
union {
u8 cidr[2];
u16 ccmp;
};
};
/* Common functions */
static inline bool
hash_netnet6_data_equal(const struct hash_netnet6_elem *ip1,
const struct hash_netnet6_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;
}
static inline int
hash_netnet6_do_data_match(const struct hash_netnet6_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netnet6_data_set_flags(struct hash_netnet6_elem *elem, u32 flags)
{
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_netnet6_data_reset_flags(struct hash_netnet6_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_netnet6_data_reset_elem(struct hash_netnet6_elem *elem,
struct hash_netnet6_elem *orig)
{
elem->ip[1] = orig->ip[1];
}
static inline void
hash_netnet6_data_netmask(struct hash_netnet6_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_netnet6_data_list(struct sk_buff *skb,
const struct hash_netnet6_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_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
(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_netnet6_data_next(struct hash_netnet4_elem *next,
const struct hash_netnet6_elem *d)
{
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#define MTYPE hash_netnet6
#define PF 6
#define HOST_MASK 128
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_netnet6_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_netnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netnet6_elem e = {
.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
if (adt == IPSET_TEST)
e.ccmp = (HOST_MASK << (sizeof(u8)*8)) | HOST_MASK;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
ip6addrptr(skb, opt->flags & IPSET_DIM_TWO_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_netnet6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netnet6_elem e = { .cidr[0] = HOST_MASK,
.cidr[1] = HOST_MASK };
struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
return -IPSET_ERR_PROTOCOL;
if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR])
e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (tb[IPSET_ATTR_CIDR2])
e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
if (!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_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);
}
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt, set) ? -ret :
ip_set_eexist(ret, flags) ? 0 : ret;
}
static struct ip_set_type hash_netnet_type __read_mostly = {
.name = "hash:net,net",
.protocol = IPSET_PROTOCOL,
.features = IPSET_TYPE_IP | IPSET_TYPE_IP2 | IPSET_TYPE_NOMATCH,
.dimension = IPSET_DIM_TWO,
.family = NFPROTO_UNSPEC,
.revision_min = IPSET_TYPE_REV_MIN,
.revision_max = IPSET_TYPE_REV_MAX,
.create = hash_netnet_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_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
},
.me = THIS_MODULE,
};
static int __init
hash_netnet_init(void)
{
return ip_set_type_register(&hash_netnet_type);
}
static void __exit
hash_netnet_fini(void)
{
ip_set_type_unregister(&hash_netnet_type);
}
module_init(hash_netnet_init);
module_exit(hash_netnet_fini);