660 lines
16 KiB
C
660 lines
16 KiB
C
/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
|
|
* Patrick Schaaf <bof@bof.de>
|
|
* Martin Josefsson <gandalf@wlug.westbo.se>
|
|
* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
/* Kernel module implementing an IP set type: the bitmap:ip,mac type */
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/ip.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/netlink.h>
|
|
#include <linux/jiffies.h>
|
|
#include <linux/timer.h>
|
|
#include <net/netlink.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_bitmap.h>
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
|
|
MODULE_DESCRIPTION("bitmap:ip,mac type of IP sets");
|
|
MODULE_ALIAS("ip_set_bitmap:ip,mac");
|
|
|
|
enum {
|
|
MAC_EMPTY, /* element is not set */
|
|
MAC_FILLED, /* element is set with MAC */
|
|
MAC_UNSET, /* element is set, without MAC */
|
|
};
|
|
|
|
/* Type structure */
|
|
struct bitmap_ipmac {
|
|
void *members; /* the set members */
|
|
u32 first_ip; /* host byte order, included in range */
|
|
u32 last_ip; /* host byte order, included in range */
|
|
u32 timeout; /* timeout value */
|
|
struct timer_list gc; /* garbage collector */
|
|
size_t dsize; /* size of element */
|
|
};
|
|
|
|
/* ADT structure for generic function args */
|
|
struct ipmac {
|
|
u32 id; /* id in array */
|
|
unsigned char *ether; /* ethernet address */
|
|
};
|
|
|
|
/* Member element without and with timeout */
|
|
|
|
struct ipmac_elem {
|
|
unsigned char ether[ETH_ALEN];
|
|
unsigned char match;
|
|
} __attribute__ ((aligned));
|
|
|
|
struct ipmac_telem {
|
|
unsigned char ether[ETH_ALEN];
|
|
unsigned char match;
|
|
unsigned long timeout;
|
|
} __attribute__ ((aligned));
|
|
|
|
static inline void *
|
|
bitmap_ipmac_elem(const struct bitmap_ipmac *map, u32 id)
|
|
{
|
|
return (void *)((char *)map->members + id * map->dsize);
|
|
}
|
|
|
|
static inline bool
|
|
bitmap_timeout(const struct bitmap_ipmac *map, u32 id)
|
|
{
|
|
const struct ipmac_telem *elem = bitmap_ipmac_elem(map, id);
|
|
|
|
return ip_set_timeout_test(elem->timeout);
|
|
}
|
|
|
|
static inline bool
|
|
bitmap_expired(const struct bitmap_ipmac *map, u32 id)
|
|
{
|
|
const struct ipmac_telem *elem = bitmap_ipmac_elem(map, id);
|
|
|
|
return ip_set_timeout_expired(elem->timeout);
|
|
}
|
|
|
|
static inline int
|
|
bitmap_ipmac_exist(const struct ipmac_telem *elem)
|
|
{
|
|
return elem->match == MAC_UNSET ||
|
|
(elem->match == MAC_FILLED &&
|
|
!ip_set_timeout_expired(elem->timeout));
|
|
}
|
|
|
|
/* Base variant */
|
|
|
|
static int
|
|
bitmap_ipmac_test(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
const struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
|
|
|
|
switch (elem->match) {
|
|
case MAC_UNSET:
|
|
/* Trigger kernel to fill out the ethernet address */
|
|
return -EAGAIN;
|
|
case MAC_FILLED:
|
|
return data->ether == NULL ||
|
|
compare_ether_addr(data->ether, elem->ether) == 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_add(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
|
|
|
|
switch (elem->match) {
|
|
case MAC_UNSET:
|
|
if (!data->ether)
|
|
/* Already added without ethernet address */
|
|
return -IPSET_ERR_EXIST;
|
|
/* Fill the MAC address */
|
|
memcpy(elem->ether, data->ether, ETH_ALEN);
|
|
elem->match = MAC_FILLED;
|
|
break;
|
|
case MAC_FILLED:
|
|
return -IPSET_ERR_EXIST;
|
|
case MAC_EMPTY:
|
|
if (data->ether) {
|
|
memcpy(elem->ether, data->ether, ETH_ALEN);
|
|
elem->match = MAC_FILLED;
|
|
} else
|
|
elem->match = MAC_UNSET;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_del(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
|
|
|
|
if (elem->match == MAC_EMPTY)
|
|
return -IPSET_ERR_EXIST;
|
|
|
|
elem->match = MAC_EMPTY;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_list(const struct ip_set *set,
|
|
struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac_elem *elem;
|
|
struct nlattr *atd, *nested;
|
|
u32 id, first = cb->args[2];
|
|
u32 last = map->last_ip - map->first_ip;
|
|
|
|
atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
|
|
if (!atd)
|
|
return -EMSGSIZE;
|
|
for (; cb->args[2] <= last; cb->args[2]++) {
|
|
id = cb->args[2];
|
|
elem = bitmap_ipmac_elem(map, id);
|
|
if (elem->match == MAC_EMPTY)
|
|
continue;
|
|
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
|
|
if (!nested) {
|
|
if (id == first) {
|
|
nla_nest_cancel(skb, atd);
|
|
return -EMSGSIZE;
|
|
} else
|
|
goto nla_put_failure;
|
|
}
|
|
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP,
|
|
htonl(map->first_ip + id));
|
|
if (elem->match == MAC_FILLED)
|
|
NLA_PUT(skb, IPSET_ATTR_ETHER, ETH_ALEN,
|
|
elem->ether);
|
|
ipset_nest_end(skb, nested);
|
|
}
|
|
ipset_nest_end(skb, atd);
|
|
/* Set listing finished */
|
|
cb->args[2] = 0;
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, nested);
|
|
ipset_nest_end(skb, atd);
|
|
if (unlikely(id == first)) {
|
|
cb->args[2] = 0;
|
|
return -EMSGSIZE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Timeout variant */
|
|
|
|
static int
|
|
bitmap_ipmac_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
const struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
|
|
|
|
switch (elem->match) {
|
|
case MAC_UNSET:
|
|
/* Trigger kernel to fill out the ethernet address */
|
|
return -EAGAIN;
|
|
case MAC_FILLED:
|
|
return (data->ether == NULL ||
|
|
compare_ether_addr(data->ether, elem->ether) == 0) &&
|
|
!bitmap_expired(map, data->id);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
struct ipmac_telem *elem = bitmap_ipmac_elem(map, data->id);
|
|
bool flag_exist = flags & IPSET_FLAG_EXIST;
|
|
|
|
switch (elem->match) {
|
|
case MAC_UNSET:
|
|
if (!(data->ether || flag_exist))
|
|
/* Already added without ethernet address */
|
|
return -IPSET_ERR_EXIST;
|
|
/* Fill the MAC address and activate the timer */
|
|
memcpy(elem->ether, data->ether, ETH_ALEN);
|
|
elem->match = MAC_FILLED;
|
|
if (timeout == map->timeout)
|
|
/* Timeout was not specified, get stored one */
|
|
timeout = elem->timeout;
|
|
elem->timeout = ip_set_timeout_set(timeout);
|
|
break;
|
|
case MAC_FILLED:
|
|
if (!(bitmap_expired(map, data->id) || flag_exist))
|
|
return -IPSET_ERR_EXIST;
|
|
/* Fall through */
|
|
case MAC_EMPTY:
|
|
if (data->ether) {
|
|
memcpy(elem->ether, data->ether, ETH_ALEN);
|
|
elem->match = MAC_FILLED;
|
|
} else
|
|
elem->match = MAC_UNSET;
|
|
/* If MAC is unset yet, we store plain timeout value
|
|
* because the timer is not activated yet
|
|
* and we can reuse it later when MAC is filled out,
|
|
* possibly by the kernel */
|
|
elem->timeout = data->ether ? ip_set_timeout_set(timeout)
|
|
: timeout;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac *data = value;
|
|
struct ipmac_telem *elem = bitmap_ipmac_elem(map, data->id);
|
|
|
|
if (elem->match == MAC_EMPTY || bitmap_expired(map, data->id))
|
|
return -IPSET_ERR_EXIST;
|
|
|
|
elem->match = MAC_EMPTY;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_tlist(const struct ip_set *set,
|
|
struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
const struct ipmac_telem *elem;
|
|
struct nlattr *atd, *nested;
|
|
u32 id, first = cb->args[2];
|
|
u32 timeout, last = map->last_ip - map->first_ip;
|
|
|
|
atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
|
|
if (!atd)
|
|
return -EMSGSIZE;
|
|
for (; cb->args[2] <= last; cb->args[2]++) {
|
|
id = cb->args[2];
|
|
elem = bitmap_ipmac_elem(map, id);
|
|
if (!bitmap_ipmac_exist(elem))
|
|
continue;
|
|
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
|
|
if (!nested) {
|
|
if (id == first) {
|
|
nla_nest_cancel(skb, atd);
|
|
return -EMSGSIZE;
|
|
} else
|
|
goto nla_put_failure;
|
|
}
|
|
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP,
|
|
htonl(map->first_ip + id));
|
|
if (elem->match == MAC_FILLED)
|
|
NLA_PUT(skb, IPSET_ATTR_ETHER, ETH_ALEN,
|
|
elem->ether);
|
|
timeout = elem->match == MAC_UNSET ? elem->timeout
|
|
: ip_set_timeout_get(elem->timeout);
|
|
NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(timeout));
|
|
ipset_nest_end(skb, nested);
|
|
}
|
|
ipset_nest_end(skb, atd);
|
|
/* Set listing finished */
|
|
cb->args[2] = 0;
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, nested);
|
|
ipset_nest_end(skb, atd);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_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)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
ipset_adtfn adtfn = set->variant->adt[adt];
|
|
struct ipmac data;
|
|
|
|
/* MAC can be src only */
|
|
if (!(opt->flags & IPSET_DIM_TWO_SRC))
|
|
return 0;
|
|
|
|
data.id = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
|
|
if (data.id < map->first_ip || data.id > map->last_ip)
|
|
return -IPSET_ERR_BITMAP_RANGE;
|
|
|
|
/* Backward compatibility: we don't check the second flag */
|
|
if (skb_mac_header(skb) < skb->head ||
|
|
(skb_mac_header(skb) + ETH_HLEN) > skb->data)
|
|
return -EINVAL;
|
|
|
|
data.id -= map->first_ip;
|
|
data.ether = eth_hdr(skb)->h_source;
|
|
|
|
return adtfn(set, &data, opt_timeout(opt, map), opt->cmdflags);
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_uadt(struct ip_set *set, struct nlattr *tb[],
|
|
enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
ipset_adtfn adtfn = set->variant->adt[adt];
|
|
struct ipmac data;
|
|
u32 timeout = map->timeout;
|
|
int ret = 0;
|
|
|
|
if (unlikely(!tb[IPSET_ATTR_IP] ||
|
|
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
|
|
return -IPSET_ERR_PROTOCOL;
|
|
|
|
if (tb[IPSET_ATTR_LINENO])
|
|
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
|
|
|
|
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &data.id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (data.id < map->first_ip || data.id > map->last_ip)
|
|
return -IPSET_ERR_BITMAP_RANGE;
|
|
|
|
if (tb[IPSET_ATTR_ETHER])
|
|
data.ether = nla_data(tb[IPSET_ATTR_ETHER]);
|
|
else
|
|
data.ether = NULL;
|
|
|
|
if (tb[IPSET_ATTR_TIMEOUT]) {
|
|
if (!with_timeout(map->timeout))
|
|
return -IPSET_ERR_TIMEOUT;
|
|
timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
|
|
}
|
|
|
|
data.id -= map->first_ip;
|
|
|
|
ret = adtfn(set, &data, timeout, flags);
|
|
|
|
return ip_set_eexist(ret, flags) ? 0 : ret;
|
|
}
|
|
|
|
static void
|
|
bitmap_ipmac_destroy(struct ip_set *set)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
|
|
if (with_timeout(map->timeout))
|
|
del_timer_sync(&map->gc);
|
|
|
|
ip_set_free(map->members);
|
|
kfree(map);
|
|
|
|
set->data = NULL;
|
|
}
|
|
|
|
static void
|
|
bitmap_ipmac_flush(struct ip_set *set)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
|
|
memset(map->members, 0,
|
|
(map->last_ip - map->first_ip + 1) * map->dsize);
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_head(struct ip_set *set, struct sk_buff *skb)
|
|
{
|
|
const struct bitmap_ipmac *map = set->data;
|
|
struct nlattr *nested;
|
|
|
|
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
|
|
if (!nested)
|
|
goto nla_put_failure;
|
|
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, htonl(map->first_ip));
|
|
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
|
|
NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
|
|
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
|
|
htonl(sizeof(*map)
|
|
+ (map->last_ip - map->first_ip + 1) * map->dsize));
|
|
if (with_timeout(map->timeout))
|
|
NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout));
|
|
ipset_nest_end(skb, nested);
|
|
|
|
return 0;
|
|
nla_put_failure:
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static bool
|
|
bitmap_ipmac_same_set(const struct ip_set *a, const struct ip_set *b)
|
|
{
|
|
const struct bitmap_ipmac *x = a->data;
|
|
const struct bitmap_ipmac *y = b->data;
|
|
|
|
return x->first_ip == y->first_ip &&
|
|
x->last_ip == y->last_ip &&
|
|
x->timeout == y->timeout;
|
|
}
|
|
|
|
static const struct ip_set_type_variant bitmap_ipmac = {
|
|
.kadt = bitmap_ipmac_kadt,
|
|
.uadt = bitmap_ipmac_uadt,
|
|
.adt = {
|
|
[IPSET_ADD] = bitmap_ipmac_add,
|
|
[IPSET_DEL] = bitmap_ipmac_del,
|
|
[IPSET_TEST] = bitmap_ipmac_test,
|
|
},
|
|
.destroy = bitmap_ipmac_destroy,
|
|
.flush = bitmap_ipmac_flush,
|
|
.head = bitmap_ipmac_head,
|
|
.list = bitmap_ipmac_list,
|
|
.same_set = bitmap_ipmac_same_set,
|
|
};
|
|
|
|
static const struct ip_set_type_variant bitmap_tipmac = {
|
|
.kadt = bitmap_ipmac_kadt,
|
|
.uadt = bitmap_ipmac_uadt,
|
|
.adt = {
|
|
[IPSET_ADD] = bitmap_ipmac_tadd,
|
|
[IPSET_DEL] = bitmap_ipmac_tdel,
|
|
[IPSET_TEST] = bitmap_ipmac_ttest,
|
|
},
|
|
.destroy = bitmap_ipmac_destroy,
|
|
.flush = bitmap_ipmac_flush,
|
|
.head = bitmap_ipmac_head,
|
|
.list = bitmap_ipmac_tlist,
|
|
.same_set = bitmap_ipmac_same_set,
|
|
};
|
|
|
|
static void
|
|
bitmap_ipmac_gc(unsigned long ul_set)
|
|
{
|
|
struct ip_set *set = (struct ip_set *) ul_set;
|
|
struct bitmap_ipmac *map = set->data;
|
|
struct ipmac_telem *elem;
|
|
u32 id, last = map->last_ip - map->first_ip;
|
|
|
|
/* We run parallel with other readers (test element)
|
|
* but adding/deleting new entries is locked out */
|
|
read_lock_bh(&set->lock);
|
|
for (id = 0; id <= last; id++) {
|
|
elem = bitmap_ipmac_elem(map, id);
|
|
if (elem->match == MAC_FILLED &&
|
|
ip_set_timeout_expired(elem->timeout))
|
|
elem->match = MAC_EMPTY;
|
|
}
|
|
read_unlock_bh(&set->lock);
|
|
|
|
map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
|
|
add_timer(&map->gc);
|
|
}
|
|
|
|
static void
|
|
bitmap_ipmac_gc_init(struct ip_set *set)
|
|
{
|
|
struct bitmap_ipmac *map = set->data;
|
|
|
|
init_timer(&map->gc);
|
|
map->gc.data = (unsigned long) set;
|
|
map->gc.function = bitmap_ipmac_gc;
|
|
map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
|
|
add_timer(&map->gc);
|
|
}
|
|
|
|
/* Create bitmap:ip,mac type of sets */
|
|
|
|
static bool
|
|
init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
|
|
u32 first_ip, u32 last_ip)
|
|
{
|
|
map->members = ip_set_alloc((last_ip - first_ip + 1) * map->dsize);
|
|
if (!map->members)
|
|
return false;
|
|
map->first_ip = first_ip;
|
|
map->last_ip = last_ip;
|
|
map->timeout = IPSET_NO_TIMEOUT;
|
|
|
|
set->data = map;
|
|
set->family = AF_INET;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
|
|
u32 flags)
|
|
{
|
|
u32 first_ip, last_ip, elements;
|
|
struct bitmap_ipmac *map;
|
|
int ret;
|
|
|
|
if (unlikely(!tb[IPSET_ATTR_IP] ||
|
|
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
|
|
return -IPSET_ERR_PROTOCOL;
|
|
|
|
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &first_ip);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (tb[IPSET_ATTR_IP_TO]) {
|
|
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &last_ip);
|
|
if (ret)
|
|
return ret;
|
|
if (first_ip > last_ip) {
|
|
u32 tmp = first_ip;
|
|
|
|
first_ip = last_ip;
|
|
last_ip = tmp;
|
|
}
|
|
} else if (tb[IPSET_ATTR_CIDR]) {
|
|
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
|
|
|
|
if (cidr >= 32)
|
|
return -IPSET_ERR_INVALID_CIDR;
|
|
ip_set_mask_from_to(first_ip, last_ip, cidr);
|
|
} else
|
|
return -IPSET_ERR_PROTOCOL;
|
|
|
|
elements = last_ip - first_ip + 1;
|
|
|
|
if (elements > IPSET_BITMAP_MAX_RANGE + 1)
|
|
return -IPSET_ERR_BITMAP_RANGE_SIZE;
|
|
|
|
map = kzalloc(sizeof(*map), GFP_KERNEL);
|
|
if (!map)
|
|
return -ENOMEM;
|
|
|
|
if (tb[IPSET_ATTR_TIMEOUT]) {
|
|
map->dsize = sizeof(struct ipmac_telem);
|
|
|
|
if (!init_map_ipmac(set, map, first_ip, last_ip)) {
|
|
kfree(map);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
|
|
|
|
set->variant = &bitmap_tipmac;
|
|
|
|
bitmap_ipmac_gc_init(set);
|
|
} else {
|
|
map->dsize = sizeof(struct ipmac_elem);
|
|
|
|
if (!init_map_ipmac(set, map, first_ip, last_ip)) {
|
|
kfree(map);
|
|
return -ENOMEM;
|
|
}
|
|
set->variant = &bitmap_ipmac;
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct ip_set_type bitmap_ipmac_type = {
|
|
.name = "bitmap:ip,mac",
|
|
.protocol = IPSET_PROTOCOL,
|
|
.features = IPSET_TYPE_IP | IPSET_TYPE_MAC,
|
|
.dimension = IPSET_DIM_TWO,
|
|
.family = AF_INET,
|
|
.revision_min = 0,
|
|
.revision_max = 0,
|
|
.create = bitmap_ipmac_create,
|
|
.create_policy = {
|
|
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
|
|
[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
|
|
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
|
|
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
|
|
},
|
|
.adt_policy = {
|
|
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
|
|
[IPSET_ATTR_ETHER] = { .type = NLA_BINARY,
|
|
.len = ETH_ALEN },
|
|
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
|
|
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
|
|
},
|
|
.me = THIS_MODULE,
|
|
};
|
|
|
|
static int __init
|
|
bitmap_ipmac_init(void)
|
|
{
|
|
return ip_set_type_register(&bitmap_ipmac_type);
|
|
}
|
|
|
|
static void __exit
|
|
bitmap_ipmac_fini(void)
|
|
{
|
|
ip_set_type_unregister(&bitmap_ipmac_type);
|
|
}
|
|
|
|
module_init(bitmap_ipmac_init);
|
|
module_exit(bitmap_ipmac_fini);
|