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netfilter: ipset: Hash types using the unified code base 

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Jozsef Kadlecsik 2013-04-08 22:50:55 +02:00 committed by Pablo Neira Ayuso
parent 1feab10d7e
commit 5d50e1d883
7 changed files with 657 additions and 1912 deletions
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306
net/netfilter/ipset/ip_set_hash_ip.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -21,7 +21,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
#define REVISION_MIN 0
@ -33,58 +32,36 @@ IP_SET_MODULE_DESC("hash:ip", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:ip");
/* Type specific function prefix */
#define TYPE hash_ip
#define HTYPE hash_ip
#define IP_SET_HASH_WITH_NETMASK
static bool
hash_ip_same_set(const struct ip_set *a, const struct ip_set *b);
/* IPv4 variants */
#define hash_ip4_same_set hash_ip_same_set
#define hash_ip6_same_set hash_ip_same_set
/* The type variant functions: IPv4 */
/* Member elements without timeout */
/* Member elements */
struct hash_ip4_elem {
/* Zero valued IP addresses cannot be stored */
__be32 ip;
};
/* Member elements with timeout support */
struct hash_ip4_telem {
struct hash_ip4t_elem {
__be32 ip;
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ip4_data_equal(const struct hash_ip4_elem *ip1,
const struct hash_ip4_elem *ip2,
hash_ip4_data_equal(const struct hash_ip4_elem *e1,
const struct hash_ip4_elem *e2,
u32 *multi)
{
return ip1->ip == ip2->ip;
return e1->ip == e2->ip;
}
static inline bool
hash_ip4_data_isnull(const struct hash_ip4_elem *elem)
hash_ip4_data_list(struct sk_buff *skb, const struct hash_ip4_elem *e)
{
return elem->ip == 0;
}
static inline void
hash_ip4_data_copy(struct hash_ip4_elem *dst, const struct hash_ip4_elem *src)
{
dst->ip = src->ip;
}
/* Zero valued IP addresses cannot be stored */
static inline void
hash_ip4_data_zero_out(struct hash_ip4_elem *elem)
{
elem->ip = 0;
}
static inline bool
hash_ip4_data_list(struct sk_buff *skb, const struct hash_ip4_elem *data)
{
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip))
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, e->ip))
goto nla_put_failure;
return 0;
@ -92,41 +69,26 @@ hash_ip4_data_list(struct sk_buff *skb, const struct hash_ip4_elem *data)
return 1;
}
static bool
hash_ip4_data_tlist(struct sk_buff *skb, const struct hash_ip4_elem *data)
static inline void
hash_ip4_data_next(struct hash_ip4_elem *next, const struct hash_ip4_elem *e)
{
const struct hash_ip4_telem *tdata =
(const struct hash_ip4_telem *)data;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
next->ip = e->ip;
}
#define IP_SET_HASH_WITH_NETMASK
#define MTYPE hash_ip4
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ip4_data_next(struct ip_set_hash *h, const struct hash_ip4_elem *d)
{
h->next.ip = d->ip;
}
#include "ip_set_hash_gen.h"
static int
hash_ip4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ip4_elem e = {};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
__be32 ip;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &ip);
@ -134,17 +96,19 @@ hash_ip4_kadt(struct ip_set *set, const struct sk_buff *skb,
if (ip == 0)
return -EINVAL;
return adtfn(set, &ip, opt_timeout(opt, h), opt->cmdflags);
e.ip = ip;
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
u32 ip, ip_to, hosts, timeout = h->timeout;
__be32 nip;
struct hash_ip4_elem e = {};
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip, ip_to, hosts;
int ret = 0;
if (unlikely(!tb[IPSET_ATTR_IP] ||
@ -154,23 +118,18 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
ip &= ip_set_hostmask(h->netmask);
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
if (adt == IPSET_TEST) {
nip = htonl(ip);
if (nip == 0)
e.ip = htonl(ip);
if (e.ip == 0)
return -IPSET_ERR_HASH_ELEM;
return adtfn(set, &nip, timeout, flags);
return adtfn(set, &e, &ext, &ext, flags);
}
ip_to = ip;
@ -193,10 +152,10 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip);
for (; !before(ip_to, ip); ip += hosts) {
nip = htonl(ip);
if (nip == 0)
e.ip = htonl(ip);
if (e.ip == 0)
return -IPSET_ERR_HASH_ELEM;
ret = adtfn(set, &nip, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -206,29 +165,20 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_ip_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout &&
x->netmask == y->netmask;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
/* Member elements */
struct hash_ip6_elem {
union nf_inet_addr ip;
};
struct hash_ip6_telem {
struct hash_ip6t_elem {
union nf_inet_addr ip;
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ip6_data_equal(const struct hash_ip6_elem *ip1,
const struct hash_ip6_elem *ip2,
@ -237,28 +187,16 @@ hash_ip6_data_equal(const struct hash_ip6_elem *ip1,
return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6);
}
static inline bool
hash_ip6_data_isnull(const struct hash_ip6_elem *elem)
{
return ipv6_addr_any(&elem->ip.in6);
}
static inline void
hash_ip6_data_copy(struct hash_ip6_elem *dst, const struct hash_ip6_elem *src)
hash_ip6_netmask(union nf_inet_addr *ip, u8 prefix)
{
dst->ip.in6 = src->ip.in6;
}
static inline void
hash_ip6_data_zero_out(struct hash_ip6_elem *elem)
{
ipv6_addr_set(&elem->ip.in6, 0, 0, 0, 0);
ip6_netmask(ip, prefix);
}
static bool
hash_ip6_data_list(struct sk_buff *skb, const struct hash_ip6_elem *data)
hash_ip6_data_list(struct sk_buff *skb, const struct hash_ip6_elem *e)
{
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6))
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6))
goto nla_put_failure;
return 0;
@ -266,65 +204,49 @@ hash_ip6_data_list(struct sk_buff *skb, const struct hash_ip6_elem *data)
return 1;
}
static bool
hash_ip6_data_tlist(struct sk_buff *skb, const struct hash_ip6_elem *data)
static inline void
hash_ip6_data_next(struct hash_ip4_elem *next, const struct hash_ip6_elem *e)
{
const struct hash_ip6_telem *e =
(const struct hash_ip6_telem *)data;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#undef HKEY_DATALEN
#define MTYPE hash_ip6
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ip6_data_next(struct ip_set_hash *h, const struct hash_ip6_elem *d)
{
}
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_ip6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
union nf_inet_addr ip;
struct hash_ip6_elem e = {};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &ip.in6);
ip6_netmask(&ip, h->netmask);
if (ipv6_addr_any(&ip.in6))
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
hash_ip6_netmask(&e.ip, h->netmask);
if (ipv6_addr_any(&e.ip.in6))
return -EINVAL;
return adtfn(set, &ip, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static const struct nla_policy hash_ip6_adt_policy[IPSET_ATTR_ADT_MAX + 1] = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
};
static int
hash_ip6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
union nf_inet_addr ip;
u32 timeout = h->timeout;
struct hash_ip6_elem e = {};
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
@ -336,110 +258,20 @@ hash_ip6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
ip6_netmask(&ip, h->netmask);
if (ipv6_addr_any(&ip.in6))
hash_ip6_netmask(&e.ip, h->netmask);
if (ipv6_addr_any(&e.ip.in6))
return -IPSET_ERR_HASH_ELEM;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
ret = adtfn(set, &ip, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
/* Create hash:ip type of sets */
static int
hash_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 netmask, hbits;
size_t hsize;
struct ip_set_hash *h;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
netmask = set->family == NFPROTO_IPV4 ? 32 : 128;
pr_debug("Create set %s with family %s\n",
set->name, set->family == NFPROTO_IPV4 ? "inet" : "inet6");
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
if (tb[IPSET_ATTR_NETMASK]) {
netmask = nla_get_u8(tb[IPSET_ATTR_NETMASK]);
if ((set->family == NFPROTO_IPV4 && netmask > 32) ||
(set->family == NFPROTO_IPV6 && netmask > 128) ||
netmask == 0)
return -IPSET_ERR_INVALID_NETMASK;
}
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
h->netmask = netmask;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_ip4_tvariant : &hash_ip6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_ip4_gc_init(set);
else
hash_ip6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_ip4_variant : &hash_ip6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_ip_type __read_mostly = {
.name = "hash:ip",
.protocol = IPSET_PROTOCOL,

328
net/netfilter/ipset/ip_set_hash_ipport.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -21,7 +21,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
@ -34,17 +33,11 @@ IP_SET_MODULE_DESC("hash:ip,port", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:ip,port");
/* Type specific function prefix */
#define TYPE hash_ipport
#define HTYPE hash_ipport
static bool
hash_ipport_same_set(const struct ip_set *a, const struct ip_set *b);
/* IPv4 variants */
#define hash_ipport4_same_set hash_ipport_same_set
#define hash_ipport6_same_set hash_ipport_same_set
/* The type variant functions: IPv4 */
/* Member elements without timeout */
/* Member elements */
struct hash_ipport4_elem {
__be32 ip;
__be16 port;
@ -52,8 +45,7 @@ struct hash_ipport4_elem {
u8 padding;
};
/* Member elements with timeout support */
struct hash_ipport4_telem {
struct hash_ipport4t_elem {
__be32 ip;
__be16 port;
u8 proto;
@ -61,6 +53,8 @@ struct hash_ipport4_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ipport4_data_equal(const struct hash_ipport4_elem *ip1,
const struct hash_ipport4_elem *ip2,
@ -71,27 +65,6 @@ hash_ipport4_data_equal(const struct hash_ipport4_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipport4_data_isnull(const struct hash_ipport4_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipport4_data_copy(struct hash_ipport4_elem *dst,
const struct hash_ipport4_elem *src)
{
dst->ip = src->ip;
dst->port = src->port;
dst->proto = src->proto;
}
static inline void
hash_ipport4_data_zero_out(struct hash_ipport4_elem *elem)
{
elem->proto = 0;
}
static bool
hash_ipport4_data_list(struct sk_buff *skb,
const struct hash_ipport4_elem *data)
@ -106,64 +79,47 @@ hash_ipport4_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipport4_data_tlist(struct sk_buff *skb,
const struct hash_ipport4_elem *data)
{
const struct hash_ipport4_telem *tdata =
(const struct hash_ipport4_telem *)data;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_net16(skb, IPSET_ATTR_PORT, tdata->port) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipport4_data_next(struct ip_set_hash *h,
hash_ipport4_data_next(struct hash_ipport4_elem *next,
const struct hash_ipport4_elem *d)
{
h->next.ip = d->ip;
h->next.port = d->port;
next->ip = d->ip;
next->port = d->port;
}
#define MTYPE hash_ipport4
#define PF 4
#define HOST_MASK 32
#define HKEY_DATALEN sizeof(struct hash_ipport4_elem)
#include "ip_set_hash_gen.h"
static int
hash_ipport4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport4_elem data = { };
struct hash_ipport4_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport4_elem data = { };
struct hash_ipport4_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip, ip_to, p = 0, port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@ -176,41 +132,36 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMP))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
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, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
ip_to = ip = ntohl(data.ip);
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)
@ -225,7 +176,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
ip_set_mask_from_to(ip, ip_to, cidr);
}
port_to = port = ntohs(data.port);
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)
@ -238,9 +189,9 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++) {
data.ip = htonl(ip);
data.port = htons(p);
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip);
e.port = htons(p);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -251,18 +202,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_ipport_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_ipport6_elem {
union nf_inet_addr ip;
@ -271,7 +211,7 @@ struct hash_ipport6_elem {
u8 padding;
};
struct hash_ipport6_telem {
struct hash_ipport6t_elem {
union nf_inet_addr ip;
__be16 port;
u8 proto;
@ -279,6 +219,8 @@ struct hash_ipport6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ipport6_data_equal(const struct hash_ipport6_elem *ip1,
const struct hash_ipport6_elem *ip2,
@ -289,25 +231,6 @@ hash_ipport6_data_equal(const struct hash_ipport6_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipport6_data_isnull(const struct hash_ipport6_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipport6_data_copy(struct hash_ipport6_elem *dst,
const struct hash_ipport6_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_ipport6_data_zero_out(struct hash_ipport6_elem *elem)
{
elem->proto = 0;
}
static bool
hash_ipport6_data_list(struct sk_buff *skb,
const struct hash_ipport6_elem *data)
@ -322,66 +245,52 @@ hash_ipport6_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipport6_data_tlist(struct sk_buff *skb,
const struct hash_ipport6_elem *data)
{
const struct hash_ipport6_telem *e =
(const struct hash_ipport6_telem *)data;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) ||
nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#undef PF
#undef HOST_MASK
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipport6_data_next(struct ip_set_hash *h,
hash_ipport6_data_next(struct hash_ipport4_elem *next,
const struct hash_ipport6_elem *d)
{
h->next.port = d->port;
next->port = d->port;
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#undef HKEY_DATALEN
#define MTYPE hash_ipport6
#define PF 6
#define HOST_MASK 128
#define HKEY_DATALEN sizeof(struct hash_ipport6_elem)
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_ipport6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport6_elem data = { };
struct hash_ipport6_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_ipport6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport6_elem data = { };
struct hash_ipport6_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@ -396,39 +305,34 @@ hash_ipport6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMPV6))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
if (!(with_ports || e.proto == IPPROTO_ICMPV6))
e.port = 0;
if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
port = ntohs(data.port);
port = ntohs(e.port);
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
@ -436,8 +340,8 @@ hash_ipport6_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
port = ntohs(h->next.port);
for (; port <= port_to; port++) {
data.port = htons(port);
ret = adtfn(set, &data, timeout, flags);
e.port = htons(port);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -447,78 +351,6 @@ hash_ipport6_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
/* Create hash:ip type of sets */
static int
hash_ipport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_ipport4_tvariant : &hash_ipport6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_ipport4_gc_init(set);
else
hash_ipport6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_ipport4_variant : &hash_ipport6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_ipport_type __read_mostly = {
.name = "hash:ip,port",
.protocol = IPSET_PROTOCOL,

324
net/netfilter/ipset/ip_set_hash_ipportip.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -21,7 +21,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
@ -34,17 +33,11 @@ IP_SET_MODULE_DESC("hash:ip,port,ip", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:ip,port,ip");
/* Type specific function prefix */
#define TYPE hash_ipportip
#define HTYPE hash_ipportip
static bool
hash_ipportip_same_set(const struct ip_set *a, const struct ip_set *b);
/* IPv4 variants */
#define hash_ipportip4_same_set hash_ipportip_same_set
#define hash_ipportip6_same_set hash_ipportip_same_set
/* The type variant functions: IPv4 */
/* Member elements without timeout */
/* Member elements */
struct hash_ipportip4_elem {
__be32 ip;
__be32 ip2;
@ -53,8 +46,7 @@ struct hash_ipportip4_elem {
u8 padding;
};
/* Member elements with timeout support */
struct hash_ipportip4_telem {
struct hash_ipportip4t_elem {
__be32 ip;
__be32 ip2;
__be16 port;
@ -74,25 +66,6 @@ hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipportip4_data_isnull(const struct hash_ipportip4_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipportip4_data_copy(struct hash_ipportip4_elem *dst,
const struct hash_ipportip4_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_ipportip4_data_zero_out(struct hash_ipportip4_elem *elem)
{
elem->proto = 0;
}
static bool
hash_ipportip4_data_list(struct sk_buff *skb,
const struct hash_ipportip4_elem *data)
@ -108,66 +81,48 @@ hash_ipportip4_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipportip4_data_tlist(struct sk_buff *skb,
const struct hash_ipportip4_elem *data)
{
const struct hash_ipportip4_telem *tdata =
(const struct hash_ipportip4_telem *)data;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_ipaddr4(skb, IPSET_ATTR_IP2, tdata->ip2) ||
nla_put_net16(skb, IPSET_ATTR_PORT, tdata->port) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipportip4_data_next(struct ip_set_hash *h,
hash_ipportip4_data_next(struct hash_ipportip4_elem *next,
const struct hash_ipportip4_elem *d)
{
h->next.ip = d->ip;
h->next.port = d->port;
next->ip = d->ip;
next->port = d->port;
}
/* Common functions */
#define MTYPE hash_ipportip4
#define PF 4
#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, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportip4_elem data = { };
struct hash_ipportip4_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
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 ip_set_hash *h = set->data;
const struct hash_ipportip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportip4_elem data = { };
struct hash_ipportip4_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip, ip_to, p = 0, port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@ -180,45 +135,40 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &data.ip2);
ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &e.ip2);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMP))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
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, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
ip_to = ip = ntohl(data.ip);
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)
@ -233,7 +183,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
ip_set_mask_from_to(ip, ip_to, cidr);
}
port_to = port = ntohs(data.port);
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)
@ -246,9 +196,9 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++) {
data.ip = htonl(ip);
data.port = htons(p);
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip);
e.port = htons(p);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -259,18 +209,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_ipportip_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_ipportip6_elem {
union nf_inet_addr ip;
@ -280,7 +219,7 @@ struct hash_ipportip6_elem {
u8 padding;
};
struct hash_ipportip6_telem {
struct hash_ipportip6t_elem {
union nf_inet_addr ip;
union nf_inet_addr ip2;
__be16 port;
@ -289,6 +228,8 @@ struct hash_ipportip6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1,
const struct hash_ipportip6_elem *ip2,
@ -300,25 +241,6 @@ hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipportip6_data_isnull(const struct hash_ipportip6_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipportip6_data_copy(struct hash_ipportip6_elem *dst,
const struct hash_ipportip6_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_ipportip6_data_zero_out(struct hash_ipportip6_elem *elem)
{
elem->proto = 0;
}
static bool
hash_ipportip6_data_list(struct sk_buff *skb,
const struct hash_ipportip6_elem *data)
@ -334,68 +256,51 @@ hash_ipportip6_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipportip6_data_tlist(struct sk_buff *skb,
const struct hash_ipportip6_elem *data)
static inline void
hash_ipportip6_data_next(struct hash_ipportip4_elem *next,
const struct hash_ipportip6_elem *d)
{
const struct hash_ipportip6_telem *e =
(const struct hash_ipportip6_telem *)data;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->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) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
next->port = d->port;
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#define MTYPE hash_ipportip6
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipportip6_data_next(struct ip_set_hash *h,
const struct hash_ipportip6_elem *d)
{
h->next.port = d->port;
}
#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, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportip6_elem data = { };
struct hash_ipportip6_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2.in6);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
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 ip_set_hash *h = set->data;
const struct hash_ipportip *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportip6_elem data = { };
struct hash_ipportip6_elem e = { };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@ -410,43 +315,38 @@ hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &data.ip2);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMPV6))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
if (!(with_ports || e.proto == IPPROTO_ICMPV6))
e.port = 0;
if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
port = ntohs(data.port);
port = ntohs(e.port);
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
@ -454,8 +354,8 @@ hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
port = ntohs(h->next.port);
for (; port <= port_to; port++) {
data.port = htons(port);
ret = adtfn(set, &data, timeout, flags);
e.port = htons(port);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -465,78 +365,6 @@ hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
/* Create hash:ip type of sets */
static int
hash_ipportip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_ipportip4_tvariant : &hash_ipportip6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_ipportip4_gc_init(set);
else
hash_ipportip6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_ipportip4_variant : &hash_ipportip6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_ipportip_type __read_mostly = {
.name = "hash:ip,port,ip",
.protocol = IPSET_PROTOCOL,

417
net/netfilter/ipset/ip_set_hash_ipportnet.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -21,7 +21,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
@ -36,23 +35,19 @@ IP_SET_MODULE_DESC("hash:ip,port,net", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:ip,port,net");
/* Type specific function prefix */
#define TYPE hash_ipportnet
static bool
hash_ipportnet_same_set(const struct ip_set *a, const struct ip_set *b);
#define hash_ipportnet4_same_set hash_ipportnet_same_set
#define hash_ipportnet6_same_set hash_ipportnet_same_set
/* The type variant functions: IPv4 */
#define HTYPE hash_ipportnet
/* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0
* However this way we have to store internally cidr - 1,
* dancing back and forth.
*/
#define IP_SET_HASH_WITH_NETS_PACKED
#define IP_SET_HASH_WITH_PROTO
#define IP_SET_HASH_WITH_NETS
/* Member elements without timeout */
/* IPv4 variants */
/* Member elements */
struct hash_ipportnet4_elem {
__be32 ip;
__be32 ip2;
@ -62,8 +57,7 @@ struct hash_ipportnet4_elem {
u8 proto;
};
/* Member elements with timeout support */
struct hash_ipportnet4_telem {
struct hash_ipportnet4t_elem {
__be32 ip;
__be32 ip2;
__be16 port;
@ -73,6 +67,8 @@ struct hash_ipportnet4_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1,
const struct hash_ipportnet4_elem *ip2,
@ -85,40 +81,24 @@ hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipportnet4_data_isnull(const struct hash_ipportnet4_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipportnet4_data_copy(struct hash_ipportnet4_elem *dst,
const struct hash_ipportnet4_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_ipportnet4_data_flags(struct hash_ipportnet4_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_ipportnet4_data_match(const struct hash_ipportnet4_elem *elem)
hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags)
{
elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}
static inline void
hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr)
{
@ -126,12 +106,6 @@ hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr)
elem->cidr = cidr - 1;
}
static inline void
hash_ipportnet4_data_zero_out(struct hash_ipportnet4_elem *elem)
{
elem->proto = 0;
}
static bool
hash_ipportnet4_data_list(struct sk_buff *skb,
const struct hash_ipportnet4_elem *data)
@ -152,81 +126,56 @@ hash_ipportnet4_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipportnet4_data_tlist(struct sk_buff *skb,
const struct hash_ipportnet4_elem *data)
{
const struct hash_ipportnet4_telem *tdata =
(const struct hash_ipportnet4_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_ipaddr4(skb, IPSET_ATTR_IP2, tdata->ip2) ||
nla_put_net16(skb, IPSET_ATTR_PORT, tdata->port) ||
nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define IP_SET_HASH_WITH_PROTO
#define IP_SET_HASH_WITH_NETS
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipportnet4_data_next(struct ip_set_hash *h,
hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next,
const struct hash_ipportnet4_elem *d)
{
h->next.ip = d->ip;
h->next.port = d->port;
h->next.ip2 = d->ip2;
next->ip = d->ip;
next->port = d->port;
next->ip2 = d->ip2;
}
#define MTYPE hash_ipportnet4
#define PF 4
#define HOST_MASK 32
#include "ip_set_hash_gen.h"
static int
hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportnet4_elem data = {
struct hash_ipportnet4_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (adt == IPSET_TEST)
data.cidr = HOST_MASK - 1;
e.cidr = HOST_MASK - 1;
if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2);
data.ip2 &= ip_set_netmask(data.cidr + 1);
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2);
e.ip2 &= ip_set_netmask(e.cidr + 1);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportnet4_elem data = { .cidr = HOST_MASK - 1 };
struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip, ip_to, p = 0, port, port_to;
u32 ip2_from, ip2_to, ip2_last, ip2;
u32 timeout = h->timeout;
bool with_ports = false;
u8 cidr;
int ret;
@ -241,7 +190,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
@ -253,31 +203,25 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
if (!cidr || cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
data.cidr = cidr - 1;
e.cidr = cidr - 1;
}
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMP))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
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]);
@ -289,9 +233,9 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
if (adt == IPSET_TEST ||
!(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports ||
tb[IPSET_ATTR_IP2_TO])) {
data.ip = htonl(ip);
data.ip2 = htonl(ip2_from & ip_set_hostmask(data.cidr + 1));
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip);
e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1));
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
@ -311,7 +255,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
ip_set_mask_from_to(ip, ip_to, cidr);
}
port_to = port = ntohs(data.port);
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)
@ -327,28 +271,27 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
swap(ip2_from, ip2_to);
if (ip2_from + UINT_MAX == ip2_to)
return -IPSET_ERR_HASH_RANGE;
} else {
ip_set_mask_from_to(ip2_from, ip2_to, data.cidr + 1);
}
} else
ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1);
if (retried)
ip = ntohl(h->next.ip);
for (; !before(ip_to, ip); ip++) {
data.ip = htonl(ip);
e.ip = htonl(ip);
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++) {
data.port = htons(p);
e.port = htons(p);
ip2 = retried
&& ip == ntohl(h->next.ip)
&& p == ntohs(h->next.port)
? ntohl(h->next.ip2) : ip2_from;
while (!after(ip2, ip2_to)) {
data.ip2 = htonl(ip2);
e.ip2 = htonl(ip2);
ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
&cidr);
data.cidr = cidr - 1;
ret = adtfn(set, &data, timeout, flags);
e.cidr = cidr - 1;
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -361,18 +304,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_ipportnet_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_ipportnet6_elem {
union nf_inet_addr ip;
@ -383,7 +315,7 @@ struct hash_ipportnet6_elem {
u8 proto;
};
struct hash_ipportnet6_telem {
struct hash_ipportnet6t_elem {
union nf_inet_addr ip;
union nf_inet_addr ip2;
__be16 port;
@ -393,6 +325,8 @@ struct hash_ipportnet6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1,
const struct hash_ipportnet6_elem *ip2,
@ -405,44 +339,22 @@ hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1,
ip1->proto == ip2->proto;
}
static inline bool
hash_ipportnet6_data_isnull(const struct hash_ipportnet6_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_ipportnet6_data_copy(struct hash_ipportnet6_elem *dst,
const struct hash_ipportnet6_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_ipportnet6_data_flags(struct hash_ipportnet6_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_ipportnet6_data_match(const struct hash_ipportnet6_elem *elem)
hash_ipportnet6_do_data_match(const struct hash_ipportnet6_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_ipportnet6_data_zero_out(struct hash_ipportnet6_elem *elem)
hash_ipportnet6_data_set_flags(struct hash_ipportnet6_elem *elem, u32 flags)
{
elem->proto = 0;
elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}
static inline void
hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
@ -472,78 +384,58 @@ hash_ipportnet6_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_ipportnet6_data_tlist(struct sk_buff *skb,
const struct hash_ipportnet6_elem *data)
static inline void
hash_ipportnet6_data_next(struct hash_ipportnet4_elem *next,
const struct hash_ipportnet6_elem *d)
{
const struct hash_ipportnet6_telem *e =
(const struct hash_ipportnet6_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->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_CIDR2, data->cidr + 1) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
next->port = d->port;
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#define MTYPE hash_ipportnet6
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_ipportnet6_data_next(struct ip_set_hash *h,
const struct hash_ipportnet6_elem *d)
{
h->next.port = d->port;
}
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportnet6_elem data = {
struct hash_ipportnet6_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (adt == IPSET_TEST)
data.cidr = HOST_MASK - 1;
e.cidr = HOST_MASK - 1;
if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2.in6);
ip6_netmask(&data.ip2, data.cidr + 1);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6);
ip6_netmask(&e.ip2, e.cidr + 1);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_ipportnet *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportnet6_elem data = { .cidr = HOST_MASK - 1 };
struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
u8 cidr;
int ret;
@ -562,11 +454,12 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &data.ip2);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2);
if (ret)
return ret;
@ -574,33 +467,27 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
if (!cidr || cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
data.cidr = cidr - 1;
e.cidr = cidr - 1;
}
ip6_netmask(&data.ip2, data.cidr + 1);
ip6_netmask(&e.ip2, e.cidr + 1);
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMPV6))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
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]);
@ -609,12 +496,12 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
}
if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
port = ntohs(data.port);
port = ntohs(e.port);
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
@ -622,8 +509,8 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
port = ntohs(h->next.port);
for (; port <= port_to; port++) {
data.port = htons(port);
ret = adtfn(set, &data, timeout, flags);
e.port = htons(port);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -633,81 +520,6 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
/* Create hash:ip type of sets */
static int
hash_ipportnet_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h)
+ sizeof(struct ip_set_hash_nets)
* (set->family == NFPROTO_IPV4 ? 32 : 128), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_ipportnet4_tvariant
: &hash_ipportnet6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_ipportnet4_gc_init(set);
else
hash_ipportnet6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_ipportnet4_variant : &hash_ipportnet6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_ipportnet_type __read_mostly = {
.name = "hash:ip,port,net",
.protocol = IPSET_PROTOCOL,
@ -724,6 +536,7 @@ static struct ip_set_type hash_ipportnet_type __read_mostly = {
[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 },

366
net/netfilter/ipset/ip_set_hash_net.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -20,7 +20,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
#define REVISION_MIN 0
@ -33,17 +32,12 @@ IP_SET_MODULE_DESC("hash:net", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:net");
/* Type specific function prefix */
#define TYPE hash_net
#define HTYPE hash_net
#define IP_SET_HASH_WITH_NETS
static bool
hash_net_same_set(const struct ip_set *a, const struct ip_set *b);
/* IPv4 variants */
#define hash_net4_same_set hash_net_same_set
#define hash_net6_same_set hash_net_same_set
/* The type variant functions: IPv4 */
/* Member elements without timeout */
/* Member elements */
struct hash_net4_elem {
__be32 ip;
u16 padding0;
@ -51,8 +45,7 @@ struct hash_net4_elem {
u8 cidr;
};
/* Member elements with timeout support */
struct hash_net4_telem {
struct hash_net4t_elem {
__be32 ip;
u16 padding0;
u8 nomatch;
@ -60,6 +53,8 @@ struct hash_net4_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_net4_data_equal(const struct hash_net4_elem *ip1,
const struct hash_net4_elem *ip2,
@ -69,42 +64,24 @@ hash_net4_data_equal(const struct hash_net4_elem *ip1,
ip1->cidr == ip2->cidr;
}
static inline bool
hash_net4_data_isnull(const struct hash_net4_elem *elem)
{
return elem->cidr == 0;
}
static inline void
hash_net4_data_copy(struct hash_net4_elem *dst,
const struct hash_net4_elem *src)
{
dst->ip = src->ip;
dst->cidr = src->cidr;
dst->nomatch = src->nomatch;
}
static inline void
hash_net4_data_flags(struct hash_net4_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_net4_data_reset_flags(struct hash_net4_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_net4_data_match(const struct hash_net4_elem *elem)
hash_net4_do_data_match(const struct hash_net4_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_net4_data_set_flags(struct hash_net4_elem *elem, u32 flags)
{
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_net4_data_reset_flags(struct hash_net4_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_net4_data_netmask(struct hash_net4_elem *elem, u8 cidr)
{
@ -112,13 +89,6 @@ hash_net4_data_netmask(struct hash_net4_elem *elem, u8 cidr)
elem->cidr = cidr;
}
/* Zero CIDR values cannot be stored */
static inline void
hash_net4_data_zero_out(struct hash_net4_elem *elem)
{
elem->cidr = 0;
}
static bool
hash_net4_data_list(struct sk_buff *skb, const struct hash_net4_elem *data)
{
@ -135,69 +105,49 @@ hash_net4_data_list(struct sk_buff *skb, const struct hash_net4_elem *data)
return 1;
}
static bool
hash_net4_data_tlist(struct sk_buff *skb, const struct hash_net4_elem *data)
{
const struct hash_net4_telem *tdata =
(const struct hash_net4_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, tdata->cidr) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define IP_SET_HASH_WITH_NETS
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_net4_data_next(struct ip_set_hash *h,
hash_net4_data_next(struct hash_net4_elem *next,
const struct hash_net4_elem *d)
{
h->next.ip = d->ip;
next->ip = d->ip;
}
#define MTYPE hash_net4
#define PF 4
#define HOST_MASK 32
#include "ip_set_hash_gen.h"
static int
hash_net4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = {
struct hash_net4_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (data.cidr == 0)
if (e.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
e.cidr = HOST_MASK;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
data.ip &= ip_set_netmask(data.cidr);
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
e.ip &= ip_set_netmask(e.cidr);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = { .cidr = HOST_MASK };
u32 timeout = h->timeout;
struct hash_net4_elem e = { .cidr = HOST_MASK };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip = 0, ip_to, last;
int ret;
@ -209,22 +159,17 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR]) {
data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!data.cidr || data.cidr > HOST_MASK)
e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!e.cidr || e.cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
if (cadt_flags & IPSET_FLAG_NOMATCH)
@ -232,8 +177,8 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
}
if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) {
data.ip = htonl(ip & ip_set_hostmask(data.cidr));
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip & ip_set_hostmask(e.cidr));
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
@ -251,9 +196,9 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip);
while (!after(ip, ip_to)) {
data.ip = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &data.cidr);
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &e.cidr);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
@ -263,18 +208,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_net_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_net6_elem {
union nf_inet_addr ip;
@ -283,7 +217,7 @@ struct hash_net6_elem {
u8 cidr;
};
struct hash_net6_telem {
struct hash_net6t_elem {
union nf_inet_addr ip;
u16 padding0;
u8 nomatch;
@ -291,6 +225,8 @@ struct hash_net6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_net6_data_equal(const struct hash_net6_elem *ip1,
const struct hash_net6_elem *ip2,
@ -300,46 +236,22 @@ hash_net6_data_equal(const struct hash_net6_elem *ip1,
ip1->cidr == ip2->cidr;
}
static inline bool
hash_net6_data_isnull(const struct hash_net6_elem *elem)
{
return elem->cidr == 0;
}
static inline void
hash_net6_data_copy(struct hash_net6_elem *dst,
const struct hash_net6_elem *src)
{
dst->ip.in6 = src->ip.in6;
dst->cidr = src->cidr;
dst->nomatch = src->nomatch;
}
static inline void
hash_net6_data_flags(struct hash_net6_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_net6_data_reset_flags(struct hash_net6_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_net6_data_match(const struct hash_net6_elem *elem)
hash_net6_do_data_match(const struct hash_net6_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_net6_data_zero_out(struct hash_net6_elem *elem)
hash_net6_data_set_flags(struct hash_net6_elem *elem, u32 flags)
{
elem->cidr = 0;
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_net6_data_reset_flags(struct hash_net6_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
@ -365,69 +277,53 @@ hash_net6_data_list(struct sk_buff *skb, const struct hash_net6_elem *data)
return 1;
}
static bool
hash_net6_data_tlist(struct sk_buff *skb, const struct hash_net6_elem *data)
{
const struct hash_net6_telem *e =
(const struct hash_net6_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, e->cidr) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#undef PF
#undef HOST_MASK
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_net6_data_next(struct ip_set_hash *h,
hash_net6_data_next(struct hash_net4_elem *next,
const struct hash_net6_elem *d)
{
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#define MTYPE hash_net6
#define PF 6
#define HOST_MASK 128
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_net6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net6_elem data = {
struct hash_net6_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (data.cidr == 0)
if (e.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
e.cidr = HOST_MASK;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6_netmask(&data.ip, data.cidr);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
ip6_netmask(&e.ip, e.cidr);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_net6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net6_elem data = { .cidr = HOST_MASK };
u32 timeout = h->timeout;
struct hash_net6_elem e = { .cidr = HOST_MASK };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
@ -440,23 +336,18 @@ hash_net6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR])
data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!data.cidr || data.cidr > HOST_MASK)
if (!e.cidr || e.cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
ip6_netmask(&data.ip, data.cidr);
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
ip6_netmask(&e.ip, e.cidr);
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
@ -464,86 +355,12 @@ hash_net6_uadt(struct ip_set *set, struct nlattr *tb[],
flags |= (IPSET_FLAG_NOMATCH << 16);
}
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
/* Create hash:ip type of sets */
static int
hash_net_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
struct ip_set_hash *h;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h)
+ sizeof(struct ip_set_hash_nets)
* (set->family == NFPROTO_IPV4 ? 32 : 128), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_net4_tvariant : &hash_net6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_net4_gc_init(set);
else
hash_net6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_net4_variant : &hash_net6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_net_type __read_mostly = {
.name = "hash:net",
.protocol = IPSET_PROTOCOL,
@ -559,6 +376,7 @@ static struct ip_set_type hash_net_type __read_mostly = {
[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 },

422
net/netfilter/ipset/ip_set_hash_netiface.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* Copyright (C) 2011-2013 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
@ -21,7 +21,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
#define REVISION_MIN 0
@ -127,17 +126,14 @@ iface_add(struct rb_root *root, const char **iface)
}
/* Type specific function prefix */
#define TYPE hash_netiface
static bool
hash_netiface_same_set(const struct ip_set *a, const struct ip_set *b);
#define hash_netiface4_same_set hash_netiface_same_set
#define hash_netiface6_same_set hash_netiface_same_set
#define HTYPE hash_netiface
#define IP_SET_HASH_WITH_NETS
#define IP_SET_HASH_WITH_RBTREE
#define IP_SET_HASH_WITH_MULTI
#define STREQ(a, b) (strcmp(a, b) == 0)
/* The type variant functions: IPv4 */
/* IPv4 variants */
struct hash_netiface4_elem_hashed {
__be32 ip;
@ -147,8 +143,6 @@ struct hash_netiface4_elem_hashed {
u8 elem;
};
#define HKEY_DATALEN sizeof(struct hash_netiface4_elem_hashed)
/* Member elements without timeout */
struct hash_netiface4_elem {
__be32 ip;
@ -159,8 +153,7 @@ struct hash_netiface4_elem {
const char *iface;
};
/* Member elements with timeout support */
struct hash_netiface4_telem {
struct hash_netiface4t_elem {
__be32 ip;
u8 physdev;
u8 cidr;
@ -170,6 +163,8 @@ struct hash_netiface4_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_netiface4_data_equal(const struct hash_netiface4_elem *ip1,
const struct hash_netiface4_elem *ip2,
@ -182,40 +177,24 @@ hash_netiface4_data_equal(const struct hash_netiface4_elem *ip1,
ip1->iface == ip2->iface;
}
static inline bool
hash_netiface4_data_isnull(const struct hash_netiface4_elem *elem)
{
return elem->elem == 0;
}
static inline void
hash_netiface4_data_copy(struct hash_netiface4_elem *dst,
const struct hash_netiface4_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_netiface4_data_flags(struct hash_netiface4_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_netiface4_data_reset_flags(struct hash_netiface4_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_netiface4_data_match(const struct hash_netiface4_elem *elem)
hash_netiface4_do_data_match(const struct hash_netiface4_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netiface4_data_set_flags(struct hash_netiface4_elem *elem, u32 flags)
{
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_netiface4_data_reset_flags(struct hash_netiface4_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_netiface4_data_netmask(struct hash_netiface4_elem *elem, u8 cidr)
{
@ -223,12 +202,6 @@ hash_netiface4_data_netmask(struct hash_netiface4_elem *elem, u8 cidr)
elem->cidr = cidr;
}
static inline void
hash_netiface4_data_zero_out(struct hash_netiface4_elem *elem)
{
elem->elem = 0;
}
static bool
hash_netiface4_data_list(struct sk_buff *skb,
const struct hash_netiface4_elem *data)
@ -249,66 +222,40 @@ hash_netiface4_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_netiface4_data_tlist(struct sk_buff *skb,
const struct hash_netiface4_elem *data)
{
const struct hash_netiface4_telem *tdata =
(const struct hash_netiface4_telem *)data;
u32 flags = data->physdev ? IPSET_FLAG_PHYSDEV : 0;
if (data->nomatch)
flags |= IPSET_FLAG_NOMATCH;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
nla_put_string(skb, IPSET_ATTR_IFACE, data->iface) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define IP_SET_HASH_WITH_NETS
#define IP_SET_HASH_WITH_RBTREE
#define IP_SET_HASH_WITH_MULTI
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_netiface4_data_next(struct ip_set_hash *h,
hash_netiface4_data_next(struct hash_netiface4_elem *next,
const struct hash_netiface4_elem *d)
{
h->next.ip = d->ip;
next->ip = d->ip;
}
#define MTYPE hash_netiface4
#define PF 4
#define HOST_MASK 32
#define HKEY_DATALEN sizeof(struct hash_netiface4_elem_hashed)
#include "ip_set_hash_gen.h"
static int
hash_netiface4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
struct ip_set_hash *h = set->data;
struct hash_netiface *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netiface4_elem data = {
struct hash_netiface4_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
.elem = 1,
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
int ret;
if (data.cidr == 0)
if (e.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
e.cidr = HOST_MASK;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
data.ip &= ip_set_netmask(data.cidr);
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
e.ip &= ip_set_netmask(e.cidr);
#define IFACE(dir) (par->dir ? par->dir->name : NULL)
#define PHYSDEV(dir) (nf_bridge->dir ? nf_bridge->dir->name : NULL)
@ -320,38 +267,38 @@ hash_netiface4_kadt(struct ip_set *set, const struct sk_buff *skb,
if (!nf_bridge)
return -EINVAL;
data.iface = SRCDIR ? PHYSDEV(physindev) : PHYSDEV(physoutdev);
data.physdev = 1;
e.iface = SRCDIR ? PHYSDEV(physindev) : PHYSDEV(physoutdev);
e.physdev = 1;
#else
data.iface = NULL;
e.iface = NULL;
#endif
} else
data.iface = SRCDIR ? IFACE(in) : IFACE(out);
e.iface = SRCDIR ? IFACE(in) : IFACE(out);
if (!data.iface)
if (!e.iface)
return -EINVAL;
ret = iface_test(&h->rbtree, &data.iface);
ret = iface_test(&h->rbtree, &e.iface);
if (adt == IPSET_ADD) {
if (!ret) {
ret = iface_add(&h->rbtree, &data.iface);
ret = iface_add(&h->rbtree, &e.iface);
if (ret)
return ret;
}
} else if (!ret)
return ret;
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
struct ip_set_hash *h = set->data;
struct hash_netiface *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netiface4_elem data = { .cidr = HOST_MASK, .elem = 1 };
struct hash_netiface4_elem e = { .cidr = HOST_MASK, .elem = 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 ip = 0, ip_to, last;
u32 timeout = h->timeout;
char iface[IFNAMSIZ];
int ret;
@ -364,28 +311,23 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR]) {
data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (data.cidr > HOST_MASK)
e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (e.cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
strcpy(iface, nla_data(tb[IPSET_ATTR_IFACE]));
data.iface = iface;
ret = iface_test(&h->rbtree, &data.iface);
e.iface = iface;
ret = iface_test(&h->rbtree, &e.iface);
if (adt == IPSET_ADD) {
if (!ret) {
ret = iface_add(&h->rbtree, &data.iface);
ret = iface_add(&h->rbtree, &e.iface);
if (ret)
return ret;
}
@ -395,13 +337,13 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
if (cadt_flags & IPSET_FLAG_PHYSDEV)
data.physdev = 1;
e.physdev = 1;
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (IPSET_FLAG_NOMATCH << 16);
}
if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) {
data.ip = htonl(ip & ip_set_hostmask(data.cidr));
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip & ip_set_hostmask(e.cidr));
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
@ -414,16 +356,15 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
swap(ip, ip_to);
if (ip + UINT_MAX == ip_to)
return -IPSET_ERR_HASH_RANGE;
} else {
ip_set_mask_from_to(ip, ip_to, data.cidr);
}
} else
ip_set_mask_from_to(ip, ip_to, e.cidr);
if (retried)
ip = ntohl(h->next.ip);
while (!after(ip, ip_to)) {
data.ip = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &data.cidr);
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &e.cidr);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -434,18 +375,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_netiface_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_netiface6_elem_hashed {
union nf_inet_addr ip;
@ -455,8 +385,6 @@ struct hash_netiface6_elem_hashed {
u8 elem;
};
#define HKEY_DATALEN sizeof(struct hash_netiface6_elem_hashed)
struct hash_netiface6_elem {
union nf_inet_addr ip;
u8 physdev;
@ -466,7 +394,7 @@ struct hash_netiface6_elem {
const char *iface;
};
struct hash_netiface6_telem {
struct hash_netiface6t_elem {
union nf_inet_addr ip;
u8 physdev;
u8 cidr;
@ -476,6 +404,8 @@ struct hash_netiface6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_netiface6_data_equal(const struct hash_netiface6_elem *ip1,
const struct hash_netiface6_elem *ip2,
@ -488,44 +418,22 @@ hash_netiface6_data_equal(const struct hash_netiface6_elem *ip1,
ip1->iface == ip2->iface;
}
static inline bool
hash_netiface6_data_isnull(const struct hash_netiface6_elem *elem)
{
return elem->elem == 0;
}
static inline void
hash_netiface6_data_copy(struct hash_netiface6_elem *dst,
const struct hash_netiface6_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_netiface6_data_flags(struct hash_netiface6_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline int
hash_netiface6_data_match(const struct hash_netiface6_elem *elem)
hash_netiface6_do_data_match(const struct hash_netiface6_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netiface6_data_reset_flags(struct hash_netiface6_elem *dst, u32 *flags)
hash_netiface6_data_set_flags(struct hash_netiface6_elem *elem, u32 flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
}
static inline void
hash_netiface6_data_zero_out(struct hash_netiface6_elem *elem)
hash_netiface6_data_reset_flags(struct hash_netiface6_elem *elem, u8 *flags)
{
elem->elem = 0;
swap(*flags, elem->nomatch);
}
static inline void
@ -555,63 +463,45 @@ hash_netiface6_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_netiface6_data_tlist(struct sk_buff *skb,
const struct hash_netiface6_elem *data)
{
const struct hash_netiface6_telem *e =
(const struct hash_netiface6_telem *)data;
u32 flags = data->physdev ? IPSET_FLAG_PHYSDEV : 0;
if (data->nomatch)
flags |= IPSET_FLAG_NOMATCH;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
nla_put_string(skb, IPSET_ATTR_IFACE, data->iface) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#undef PF
#undef HOST_MASK
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_netiface6_data_next(struct ip_set_hash *h,
hash_netiface6_data_next(struct hash_netiface4_elem *next,
const struct hash_netiface6_elem *d)
{
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#undef HKEY_DATALEN
#define MTYPE hash_netiface6
#define PF 6
#define HOST_MASK 128
#define HKEY_DATALEN sizeof(struct hash_netiface6_elem_hashed)
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_netiface6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
struct ip_set_hash *h = set->data;
struct hash_netiface *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netiface6_elem data = {
struct hash_netiface6_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
.elem = 1,
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
int ret;
if (data.cidr == 0)
if (e.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
e.cidr = HOST_MASK;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6_netmask(&data.ip, data.cidr);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
ip6_netmask(&e.ip, e.cidr);
if (opt->cmdflags & IPSET_FLAG_PHYSDEV) {
#ifdef CONFIG_BRIDGE_NETFILTER
@ -619,37 +509,37 @@ hash_netiface6_kadt(struct ip_set *set, const struct sk_buff *skb,
if (!nf_bridge)
return -EINVAL;
data.iface = SRCDIR ? PHYSDEV(physindev) : PHYSDEV(physoutdev);
data.physdev = 1;
e.iface = SRCDIR ? PHYSDEV(physindev) : PHYSDEV(physoutdev);
e.physdev = 1;
#else
data.iface = NULL;
e.iface = NULL;
#endif
} else
data.iface = SRCDIR ? IFACE(in) : IFACE(out);
e.iface = SRCDIR ? IFACE(in) : IFACE(out);
if (!data.iface)
if (!e.iface)
return -EINVAL;
ret = iface_test(&h->rbtree, &data.iface);
ret = iface_test(&h->rbtree, &e.iface);
if (adt == IPSET_ADD) {
if (!ret) {
ret = iface_add(&h->rbtree, &data.iface);
ret = iface_add(&h->rbtree, &e.iface);
if (ret)
return ret;
}
} else if (!ret)
return ret;
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
struct ip_set_hash *h = set->data;
struct hash_netiface *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netiface6_elem data = { .cidr = HOST_MASK, .elem = 1 };
u32 timeout = h->timeout;
struct hash_netiface6_elem e = { .cidr = HOST_MASK, .elem = 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
char iface[IFNAMSIZ];
int ret;
@ -664,28 +554,23 @@ hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR])
data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (data.cidr > HOST_MASK)
e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (e.cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
ip6_netmask(&data.ip, data.cidr);
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
ip6_netmask(&e.ip, e.cidr);
strcpy(iface, nla_data(tb[IPSET_ATTR_IFACE]));
data.iface = iface;
ret = iface_test(&h->rbtree, &data.iface);
e.iface = iface;
ret = iface_test(&h->rbtree, &e.iface);
if (adt == IPSET_ADD) {
if (!ret) {
ret = iface_add(&h->rbtree, &data.iface);
ret = iface_add(&h->rbtree, &e.iface);
if (ret)
return ret;
}
@ -695,93 +580,17 @@ hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
if (cadt_flags & IPSET_FLAG_PHYSDEV)
data.physdev = 1;
e.physdev = 1;
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (IPSET_FLAG_NOMATCH << 16);
}
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
/* Create hash:ip type of sets */
static int
hash_netiface_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h)
+ sizeof(struct ip_set_hash_nets)
* (set->family == NFPROTO_IPV4 ? 32 : 128), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
h->ahash_max = AHASH_MAX_SIZE;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
h->rbtree = RB_ROOT;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_netiface4_tvariant : &hash_netiface6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_netiface4_gc_init(set);
else
hash_netiface6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_netiface4_variant : &hash_netiface6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_netiface_type __read_mostly = {
.name = "hash:net,iface",
.protocol = IPSET_PROTOCOL,
@ -799,6 +608,7 @@ static struct ip_set_type hash_netiface_type __read_mostly = {
[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
},
.adt_policy = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },

406
net/netfilter/ipset/ip_set_hash_netport.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
/* 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
@ -20,7 +20,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
#include <linux/netfilter/ipset/ip_set_hash.h>
@ -35,15 +34,9 @@ IP_SET_MODULE_DESC("hash:net,port", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_hash:net,port");
/* Type specific function prefix */
#define TYPE hash_netport
static bool
hash_netport_same_set(const struct ip_set *a, const struct ip_set *b);
#define hash_netport4_same_set hash_netport_same_set
#define hash_netport6_same_set hash_netport_same_set
/* The type variant functions: IPv4 */
#define HTYPE hash_netport
#define IP_SET_HASH_WITH_PROTO
#define IP_SET_HASH_WITH_NETS
/* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0
* However this way we have to store internally cidr - 1,
@ -51,7 +44,9 @@ hash_netport_same_set(const struct ip_set *a, const struct ip_set *b);
*/
#define IP_SET_HASH_WITH_NETS_PACKED
/* Member elements without timeout */
/* IPv4 variants */
/* Member elements */
struct hash_netport4_elem {
__be32 ip;
__be16 port;
@ -60,8 +55,7 @@ struct hash_netport4_elem {
u8 nomatch:1;
};
/* Member elements with timeout support */
struct hash_netport4_telem {
struct hash_netport4t_elem {
__be32 ip;
__be16 port;
u8 proto;
@ -70,6 +64,8 @@ struct hash_netport4_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_netport4_data_equal(const struct hash_netport4_elem *ip1,
const struct hash_netport4_elem *ip2,
@ -81,44 +77,24 @@ hash_netport4_data_equal(const struct hash_netport4_elem *ip1,
ip1->cidr == ip2->cidr;
}
static inline bool
hash_netport4_data_isnull(const struct hash_netport4_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_netport4_data_copy(struct hash_netport4_elem *dst,
const struct hash_netport4_elem *src)
{
dst->ip = src->ip;
dst->port = src->port;
dst->proto = src->proto;
dst->cidr = src->cidr;
dst->nomatch = src->nomatch;
}
static inline void
hash_netport4_data_flags(struct hash_netport4_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_netport4_data_reset_flags(struct hash_netport4_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_netport4_data_match(const struct hash_netport4_elem *elem)
hash_netport4_do_data_match(const struct hash_netport4_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netport4_data_set_flags(struct hash_netport4_elem *elem, u32 flags)
{
elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}
static inline void
hash_netport4_data_reset_flags(struct hash_netport4_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
hash_netport4_data_netmask(struct hash_netport4_elem *elem, u8 cidr)
{
@ -126,12 +102,6 @@ hash_netport4_data_netmask(struct hash_netport4_elem *elem, u8 cidr)
elem->cidr = cidr - 1;
}
static inline void
hash_netport4_data_zero_out(struct hash_netport4_elem *elem)
{
elem->proto = 0;
}
static bool
hash_netport4_data_list(struct sk_buff *skb,
const struct hash_netport4_elem *data)
@ -151,77 +121,53 @@ hash_netport4_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_netport4_data_tlist(struct sk_buff *skb,
const struct hash_netport4_elem *data)
{
const struct hash_netport4_telem *tdata =
(const struct hash_netport4_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) ||
nla_put_net16(skb, IPSET_ATTR_PORT, tdata->port) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(tdata->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
}
#define IP_SET_HASH_WITH_PROTO
#define IP_SET_HASH_WITH_NETS
#define PF 4
#define HOST_MASK 32
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_netport4_data_next(struct ip_set_hash *h,
hash_netport4_data_next(struct hash_netport4_elem *next,
const struct hash_netport4_elem *d)
{
h->next.ip = d->ip;
h->next.port = d->port;
next->ip = d->ip;
next->port = d->port;
}
#define MTYPE hash_netport4
#define PF 4
#define HOST_MASK 32
#include "ip_set_hash_gen.h"
static int
hash_netport4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_netport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netport4_elem data = {
struct hash_netport4_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (adt == IPSET_TEST)
data.cidr = HOST_MASK - 1;
e.cidr = HOST_MASK - 1;
if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
data.ip &= ip_set_netmask(data.cidr + 1);
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
e.ip &= ip_set_netmask(e.cidr + 1);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_netport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netport4_elem data = { .cidr = HOST_MASK - 1 };
struct hash_netport4_elem e = { .cidr = HOST_MASK - 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 port, port_to, p = 0, ip = 0, ip_to, last;
u32 timeout = h->timeout;
bool with_ports = false;
u8 cidr;
int ret;
@ -236,7 +182,8 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
@ -244,31 +191,25 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!cidr || cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
data.cidr = cidr - 1;
e.cidr = cidr - 1;
}
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMP))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
if (!(with_ports || e.proto == IPPROTO_ICMP))
e.port = 0;
with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
@ -279,13 +220,13 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
}
if (adt == IPSET_TEST || !(with_ports || tb[IPSET_ATTR_IP_TO])) {
data.ip = htonl(ip & ip_set_hostmask(data.cidr + 1));
ret = adtfn(set, &data, timeout, flags);
e.ip = htonl(ip & ip_set_hostmask(e.cidr + 1));
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
port = port_to = ntohs(data.port);
port = port_to = ntohs(e.port);
if (tb[IPSET_ATTR_PORT_TO]) {
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port_to < port)
@ -299,21 +240,20 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
swap(ip, ip_to);
if (ip + UINT_MAX == ip_to)
return -IPSET_ERR_HASH_RANGE;
} else {
ip_set_mask_from_to(ip, ip_to, data.cidr + 1);
}
} else
ip_set_mask_from_to(ip, ip_to, e.cidr + 1);
if (retried)
ip = ntohl(h->next.ip);
while (!after(ip, ip_to)) {
data.ip = htonl(ip);
e.ip = htonl(ip);
last = ip_set_range_to_cidr(ip, ip_to, &cidr);
data.cidr = cidr - 1;
e.cidr = cidr - 1;
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++) {
data.port = htons(p);
ret = adtfn(set, &data, timeout, flags);
e.port = htons(p);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -325,18 +265,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
static bool
hash_netport_same_set(const struct ip_set *a, const struct ip_set *b)
{
const struct ip_set_hash *x = a->data;
const struct ip_set_hash *y = b->data;
/* Resizing changes htable_bits, so we ignore it */
return x->maxelem == y->maxelem &&
x->timeout == y->timeout;
}
/* The type variant functions: IPv6 */
/* IPv6 variants */
struct hash_netport6_elem {
union nf_inet_addr ip;
@ -346,7 +275,7 @@ struct hash_netport6_elem {
u8 nomatch:1;
};
struct hash_netport6_telem {
struct hash_netport6t_elem {
union nf_inet_addr ip;
__be16 port;
u8 proto;
@ -355,6 +284,8 @@ struct hash_netport6_telem {
unsigned long timeout;
};
/* Common functions */
static inline bool
hash_netport6_data_equal(const struct hash_netport6_elem *ip1,
const struct hash_netport6_elem *ip2,
@ -366,44 +297,22 @@ hash_netport6_data_equal(const struct hash_netport6_elem *ip1,
ip1->cidr == ip2->cidr;
}
static inline bool
hash_netport6_data_isnull(const struct hash_netport6_elem *elem)
{
return elem->proto == 0;
}
static inline void
hash_netport6_data_copy(struct hash_netport6_elem *dst,
const struct hash_netport6_elem *src)
{
memcpy(dst, src, sizeof(*dst));
}
static inline void
hash_netport6_data_flags(struct hash_netport6_elem *dst, u32 flags)
{
dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH);
}
static inline void
hash_netport6_data_reset_flags(struct hash_netport6_elem *dst, u32 *flags)
{
if (dst->nomatch) {
*flags = IPSET_FLAG_NOMATCH;
dst->nomatch = 0;
}
}
static inline int
hash_netport6_data_match(const struct hash_netport6_elem *elem)
hash_netport6_do_data_match(const struct hash_netport6_elem *elem)
{
return elem->nomatch ? -ENOTEMPTY : 1;
}
static inline void
hash_netport6_data_zero_out(struct hash_netport6_elem *elem)
hash_netport6_data_set_flags(struct hash_netport6_elem *elem, u32 flags)
{
elem->proto = 0;
elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
}
static inline void
hash_netport6_data_reset_flags(struct hash_netport6_elem *elem, u8 *flags)
{
swap(*flags, elem->nomatch);
}
static inline void
@ -432,76 +341,57 @@ hash_netport6_data_list(struct sk_buff *skb,
return 1;
}
static bool
hash_netport6_data_tlist(struct sk_buff *skb,
const struct hash_netport6_elem *data)
static inline void
hash_netport6_data_next(struct hash_netport4_elem *next,
const struct hash_netport6_elem *d)
{
const struct hash_netport6_telem *e =
(const struct hash_netport6_telem *)data;
u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) ||
nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) ||
nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
htonl(ip_set_timeout_get(e->timeout))) ||
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
return 0;
nla_put_failure:
return 1;
next->port = d->port;
}
#undef MTYPE
#undef PF
#undef HOST_MASK
#define MTYPE hash_netport6
#define PF 6
#define HOST_MASK 128
#include <linux/netfilter/ipset/ip_set_ahash.h>
static inline void
hash_netport6_data_next(struct ip_set_hash *h,
const struct hash_netport6_elem *d)
{
h->next.port = d->port;
}
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
static int
hash_netport6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
enum ipset_adt adt, const struct ip_set_adt_opt *opt)
enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
const struct ip_set_hash *h = set->data;
const struct hash_netport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netport6_elem data = {
struct hash_netport6_elem e = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1,
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
if (adt == IPSET_TEST)
data.cidr = HOST_MASK - 1;
e.cidr = HOST_MASK - 1;
if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
&data.port, &data.proto))
&e.port, &e.proto))
return -EINVAL;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6_netmask(&data.ip, data.cidr + 1);
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
ip6_netmask(&e.ip, e.cidr + 1);
return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
{
const struct ip_set_hash *h = set->data;
const struct hash_netport *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_netport6_elem data = { .cidr = HOST_MASK - 1 };
struct hash_netport6_elem e = { .cidr = HOST_MASK - 1 };
struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
u32 port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
u8 cidr;
int ret;
@ -518,7 +408,8 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
@ -526,32 +417,26 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!cidr || cidr > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
data.cidr = cidr - 1;
e.cidr = cidr - 1;
}
ip6_netmask(&data.ip, data.cidr + 1);
ip6_netmask(&e.ip, e.cidr + 1);
if (tb[IPSET_ATTR_PORT])
data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
else
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_PROTO]) {
data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(data.proto);
e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
with_ports = ip_set_proto_with_ports(e.proto);
if (data.proto == 0)
if (e.proto == 0)
return -IPSET_ERR_INVALID_PROTO;
} else
return -IPSET_ERR_MISSING_PROTO;
if (!(with_ports || data.proto == IPPROTO_ICMPV6))
data.port = 0;
if (tb[IPSET_ATTR_TIMEOUT]) {
if (!with_timeout(h->timeout))
return -IPSET_ERR_TIMEOUT;
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
}
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]);
@ -560,12 +445,12 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
}
if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
ret = adtfn(set, &data, timeout, flags);
ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_enomatch(ret, flags, adt) ? 1 :
ip_set_eexist(ret, flags) ? 0 : ret;
}
port = ntohs(data.port);
port = ntohs(e.port);
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
@ -573,8 +458,8 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
port = ntohs(h->next.port);
for (; port <= port_to; port++) {
data.port = htons(port);
ret = adtfn(set, &data, timeout, flags);
e.port = htons(port);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
@ -584,80 +469,6 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
}
/* Create hash:ip type of sets */
static int
hash_netport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_HASHSIZE]) {
hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
if (hashsize < IPSET_MIMINAL_HASHSIZE)
hashsize = IPSET_MIMINAL_HASHSIZE;
}
if (tb[IPSET_ATTR_MAXELEM])
maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
h = kzalloc(sizeof(*h)
+ sizeof(struct ip_set_hash_nets)
* (set->family == NFPROTO_IPV4 ? 32 : 128), GFP_KERNEL);
if (!h)
return -ENOMEM;
h->maxelem = maxelem;
get_random_bytes(&h->initval, sizeof(h->initval));
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
return -ENOMEM;
}
h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
}
h->table->htable_bits = hbits;
set->data = h;
if (tb[IPSET_ATTR_TIMEOUT]) {
h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
set->variant = set->family == NFPROTO_IPV4
? &hash_netport4_tvariant : &hash_netport6_tvariant;
if (set->family == NFPROTO_IPV4)
hash_netport4_gc_init(set);
else
hash_netport6_gc_init(set);
} else {
set->variant = set->family == NFPROTO_IPV4
? &hash_netport4_variant : &hash_netport6_variant;
}
pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
set->name, jhash_size(h->table->htable_bits),
h->table->htable_bits, h->maxelem, set->data, h->table);
return 0;
}
static struct ip_set_type hash_netport_type __read_mostly = {
.name = "hash:net,port",
.protocol = IPSET_PROTOCOL,
@ -674,6 +485,7 @@ static struct ip_set_type hash_netport_type __read_mostly = {
[IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
[IPSET_ATTR_PROTO] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
},
.adt_policy = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },