/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
* Patrick Schaaf <bof@bof.de>
- * 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
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_bitmap.h>
-#define IP_SET_BITMAP_TIMEOUT
-#include <linux/netfilter/ipset/ip_set_timeout.h>
#define REVISION_MIN 0
#define REVISION_MAX 0
IP_SET_MODULE_DESC("bitmap:ip", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_bitmap:ip");
+#define MTYPE bitmap_ip
+
/* Type structure */
struct bitmap_ip {
void *members; /* the set members */
+ void *extensions; /* data extensions */
u32 first_ip; /* host byte order, included in range */
u32 last_ip; /* host byte order, included in range */
u32 elements; /* number of max elements in the set */
u32 hosts; /* number of hosts in a subnet */
size_t memsize; /* members size */
+ size_t dsize; /* extensions struct size */
+ size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
u8 netmask; /* subnet netmask */
u32 timeout; /* timeout parameter */
struct timer_list gc; /* garbage collection */
};
-/* Base variant */
+/* ADT structure for generic function args */
+struct bitmap_ip_adt_elem {
+ u16 id;
+};
static inline u32
ip_to_id(const struct bitmap_ip *m, u32 ip)
return ((ip & ip_set_hostmask(m->netmask)) - m->first_ip)/m->hosts;
}
-static int
-bitmap_ip_test(struct ip_set *set, void *value, u32 timeout, u32 flags)
-{
- const struct bitmap_ip *map = set->data;
- u16 id = *(u16 *)value;
-
- return !!test_bit(id, map->members);
-}
-
-static int
-bitmap_ip_add(struct ip_set *set, void *value, u32 timeout, u32 flags)
-{
- struct bitmap_ip *map = set->data;
- u16 id = *(u16 *)value;
-
- if (test_and_set_bit(id, map->members))
- return -IPSET_ERR_EXIST;
-
- return 0;
-}
+/* Common functions */
-static int
-bitmap_ip_del(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ip_do_test(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map)
{
- struct bitmap_ip *map = set->data;
- u16 id = *(u16 *)value;
-
- if (!test_and_clear_bit(id, map->members))
- return -IPSET_ERR_EXIST;
-
- return 0;
+ return !!test_bit(e->id, map->members);
}
-static int
-bitmap_ip_list(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ip_gc_test(u16 id, const struct bitmap_ip *map)
{
- const struct bitmap_ip *map = set->data;
- struct nlattr *atd, *nested;
- u32 id, first = cb->args[2];
-
- atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!atd)
- return -EMSGSIZE;
- for (; cb->args[2] < map->elements; cb->args[2]++) {
- id = cb->args[2];
- if (!test_bit(id, map->members))
- 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;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id * map->hosts)))
- goto nla_put_failure;
- 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;
+ return !!test_bit(id, map->members);
}
-/* Timeout variant */
-
-static int
-bitmap_ip_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ip_do_add(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map,
+ u32 flags)
{
- const struct bitmap_ip *map = set->data;
- const unsigned long *members = map->members;
- u16 id = *(u16 *)value;
-
- return ip_set_timeout_test(members[id]);
+ return !!test_and_set_bit(e->id, map->members);
}
-static int
-bitmap_ip_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ip_do_del(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map)
{
- struct bitmap_ip *map = set->data;
- unsigned long *members = map->members;
- u16 id = *(u16 *)value;
-
- if (ip_set_timeout_test(members[id]) && !(flags & IPSET_FLAG_EXIST))
- return -IPSET_ERR_EXIST;
-
- members[id] = ip_set_timeout_set(timeout);
-
- return 0;
+ return !test_and_clear_bit(e->id, map->members);
}
-static int
-bitmap_ip_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ip_do_list(struct sk_buff *skb, const struct bitmap_ip *map, u32 id)
{
- struct bitmap_ip *map = set->data;
- unsigned long *members = map->members;
- u16 id = *(u16 *)value;
- int ret = -IPSET_ERR_EXIST;
-
- if (ip_set_timeout_test(members[id]))
- ret = 0;
-
- members[id] = IPSET_ELEM_UNSET;
- return ret;
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP,
+ htonl(map->first_ip + id * map->hosts));
}
-static int
-bitmap_ip_tlist(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ip_do_head(struct sk_buff *skb, const struct bitmap_ip *map)
{
- const struct bitmap_ip *map = set->data;
- struct nlattr *adt, *nested;
- u32 id, first = cb->args[2];
- const unsigned long *members = map->members;
-
- adt = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!adt)
- return -EMSGSIZE;
- for (; cb->args[2] < map->elements; cb->args[2]++) {
- id = cb->args[2];
- if (!ip_set_timeout_test(members[id]))
- continue;
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested) {
- if (id == first) {
- nla_nest_cancel(skb, adt);
- return -EMSGSIZE;
- } else
- goto nla_put_failure;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id * map->hosts)) ||
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
- htonl(ip_set_timeout_get(members[id]))))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, adt);
-
- /* Set listing finished */
- cb->args[2] = 0;
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, nested);
- ipset_nest_end(skb, adt);
- if (unlikely(id == first)) {
- cb->args[2] = 0;
- return -EMSGSIZE;
- }
- return 0;
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip)) ||
+ nla_put_ipaddr4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip)) ||
+ (map->netmask != 32 &&
+ nla_put_u8(skb, IPSET_ATTR_NETMASK, map->netmask));
}
static int
bitmap_ip_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 bitmap_ip *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
+ struct bitmap_ip_adt_elem e = { };
+ struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
u32 ip;
ip = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
if (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
- ip = ip_to_id(map, ip);
+ e.id = ip_to_id(map, ip);
- return adtfn(set, &ip, opt_timeout(opt, map), opt->cmdflags);
+ return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
{
struct bitmap_ip *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- u32 timeout = map->timeout;
- u32 ip, ip_to, id;
+ u32 ip, ip_to;
+ struct bitmap_ip_adt_elem e = { };
+ struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
int ret = 0;
if (unlikely(!tb[IPSET_ATTR_IP] ||
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 (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
- if (tb[IPSET_ATTR_TIMEOUT]) {
- if (!with_timeout(map->timeout))
- return -IPSET_ERR_TIMEOUT;
- timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
- }
-
if (adt == IPSET_TEST) {
- id = ip_to_id(map, ip);
- return adtfn(set, &id, timeout, flags);
+ e.id = ip_to_id(map, ip);
+ return adtfn(set, &e, &ext, &ext, flags);
}
if (tb[IPSET_ATTR_IP_TO]) {
return -IPSET_ERR_BITMAP_RANGE;
for (; !before(ip_to, ip); ip += map->hosts) {
- id = ip_to_id(map, ip);
- ret = adtfn(set, &id, timeout, flags);
+ e.id = ip_to_id(map, ip);
+ ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
return ret;
}
-static void
-bitmap_ip_destroy(struct ip_set *set)
-{
- struct bitmap_ip *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_ip_flush(struct ip_set *set)
-{
- struct bitmap_ip *map = set->data;
-
- memset(map->members, 0, map->memsize);
-}
-
-static int
-bitmap_ip_head(struct ip_set *set, struct sk_buff *skb)
-{
- const struct bitmap_ip *map = set->data;
- struct nlattr *nested;
-
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested)
- goto nla_put_failure;
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip)) ||
- nla_put_ipaddr4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip)) ||
- (map->netmask != 32 &&
- nla_put_u8(skb, IPSET_ATTR_NETMASK, map->netmask)) ||
- nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
- nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
- htonl(sizeof(*map) + map->memsize)) ||
- (with_timeout(map->timeout) &&
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
-
- return 0;
-nla_put_failure:
- return -EMSGSIZE;
-}
-
static bool
bitmap_ip_same_set(const struct ip_set *a, const struct ip_set *b)
{
return x->first_ip == y->first_ip &&
x->last_ip == y->last_ip &&
x->netmask == y->netmask &&
- x->timeout == y->timeout;
+ x->timeout == y->timeout &&
+ a->extensions == b->extensions;
}
-static const struct ip_set_type_variant bitmap_ip = {
- .kadt = bitmap_ip_kadt,
- .uadt = bitmap_ip_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_ip_add,
- [IPSET_DEL] = bitmap_ip_del,
- [IPSET_TEST] = bitmap_ip_test,
- },
- .destroy = bitmap_ip_destroy,
- .flush = bitmap_ip_flush,
- .head = bitmap_ip_head,
- .list = bitmap_ip_list,
- .same_set = bitmap_ip_same_set,
-};
+/* Plain variant */
-static const struct ip_set_type_variant bitmap_tip = {
- .kadt = bitmap_ip_kadt,
- .uadt = bitmap_ip_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_ip_tadd,
- [IPSET_DEL] = bitmap_ip_tdel,
- [IPSET_TEST] = bitmap_ip_ttest,
- },
- .destroy = bitmap_ip_destroy,
- .flush = bitmap_ip_flush,
- .head = bitmap_ip_head,
- .list = bitmap_ip_tlist,
- .same_set = bitmap_ip_same_set,
+struct bitmap_ip_elem {
};
-static void
-bitmap_ip_gc(unsigned long ul_set)
-{
- struct ip_set *set = (struct ip_set *) ul_set;
- struct bitmap_ip *map = set->data;
- unsigned long *table = map->members;
- u32 id;
-
- /* 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 < map->elements; id++)
- if (ip_set_timeout_expired(table[id]))
- table[id] = IPSET_ELEM_UNSET;
- read_unlock_bh(&set->lock);
-
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+/* Timeout variant */
-static void
-bitmap_ip_gc_init(struct ip_set *set)
-{
- struct bitmap_ip *map = set->data;
+struct bitmap_ipt_elem {
+ unsigned long timeout;
+};
- init_timer(&map->gc);
- map->gc.data = (unsigned long) set;
- map->gc.function = bitmap_ip_gc;
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+#include "ip_set_bitmap_gen.h"
/* Create bitmap:ip type of sets */
map->members = ip_set_alloc(map->memsize);
if (!map->members)
return false;
+ if (map->dsize) {
+ map->extensions = ip_set_alloc(map->dsize * elements);
+ if (!map->extensions) {
+ kfree(map->members);
+ return false;
+ }
+ }
map->first_ip = first_ip;
map->last_ip = last_ip;
map->elements = elements;
if (!map)
return -ENOMEM;
+ map->memsize = bitmap_bytes(0, elements - 1);
+ set->variant = &bitmap_ip;
if (tb[IPSET_ATTR_TIMEOUT]) {
- map->memsize = elements * sizeof(unsigned long);
+ map->dsize = sizeof(struct bitmap_ipt_elem);
+ map->offset[IPSET_OFFSET_TIMEOUT] =
+ offsetof(struct bitmap_ipt_elem, timeout);
if (!init_map_ip(set, map, first_ip, last_ip,
elements, hosts, netmask)) {
}
map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
- set->variant = &bitmap_tip;
+ set->extensions |= IPSET_EXT_TIMEOUT;
- bitmap_ip_gc_init(set);
+ bitmap_ip_gc_init(set, bitmap_ip_gc);
} else {
- map->memsize = bitmap_bytes(0, elements - 1);
-
+ map->dsize = 0;
if (!init_map_ip(set, map, first_ip, last_ip,
elements, hosts, netmask)) {
kfree(map);
return -ENOMEM;
}
-
- set->variant = &bitmap_ip;
}
return 0;
}
/* 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>
+ * 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
#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>
#define REVISION_MIN 0
IP_SET_MODULE_DESC("bitmap:ip,mac", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_bitmap:ip,mac");
+#define MTYPE bitmap_ipmac
+#define IP_SET_BITMAP_STORED_TIMEOUT
+
enum {
- MAC_EMPTY, /* element is not set */
- MAC_FILLED, /* element is set with MAC */
MAC_UNSET, /* element is set, without MAC */
+ MAC_FILLED, /* element is set with MAC */
};
/* Type structure */
struct bitmap_ipmac {
void *members; /* the set members */
+ void *extensions; /* MAC + data extensions */
u32 first_ip; /* host byte order, included in range */
u32 last_ip; /* host byte order, included in range */
+ u32 elements; /* number of max elements in the set */
u32 timeout; /* timeout value */
struct timer_list gc; /* garbage collector */
+ size_t memsize; /* members size */
size_t dsize; /* size of element */
+ size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
};
/* ADT structure for generic function args */
-struct ipmac {
- u32 id; /* id in array */
- unsigned char *ether; /* ethernet address */
+struct bitmap_ipmac_adt_elem {
+ u16 id;
+ unsigned char *ether;
};
-/* Member element without and with timeout */
-
-struct ipmac_elem {
+struct bitmap_ipmac_elem {
unsigned char ether[ETH_ALEN];
- unsigned char match;
+ unsigned char filled;
} __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)
+static inline u32
+ip_to_id(const struct bitmap_ipmac *m, u32 ip)
{
- return (void *)((char *)map->members + id * map->dsize);
+ return ip - m->first_ip;
}
-static inline bool
-bitmap_timeout(const struct bitmap_ipmac *map, u32 id)
+static inline struct bitmap_ipmac_elem *
+get_elem(void *extensions, u16 id, size_t dsize)
{
- const struct ipmac_telem *elem = bitmap_ipmac_elem(map, id);
-
- return ip_set_timeout_test(elem->timeout);
+ return (struct bitmap_ipmac_elem *)(extensions + id * dsize);
}
-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);
-}
+/* Common functions */
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 ||
- ether_addr_equal(data->ether, elem->ether);
- }
- 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)
+bitmap_ipmac_do_test(const struct bitmap_ipmac_adt_elem *e,
+ const struct bitmap_ipmac *map)
{
- 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;
+ const struct bitmap_ipmac_elem *elem;
- elem->match = MAC_EMPTY;
-
- return 0;
+ if (!test_bit(e->id, map->members))
+ return 0;
+ elem = get_elem(map->extensions, e->id, map->dsize);
+ if (elem->filled == MAC_FILLED)
+ return e->ether == NULL ||
+ ether_addr_equal(e->ether, elem->ether);
+ /* Trigger kernel to fill out the ethernet address */
+ return -EAGAIN;
}
-static int
-bitmap_ipmac_list(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ipmac_gc_test(u16 id, const struct bitmap_ipmac *map)
{
- 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;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id)) ||
- (elem->match == MAC_FILLED &&
- nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN,
- elem->ether)))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, atd);
- /* Set listing finished */
- cb->args[2] = 0;
-
- return 0;
+ const struct bitmap_ipmac_elem *elem;
-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;
+ if (!test_bit(id, map->members))
+ return 0;
+ elem = get_elem(map->extensions, id, map->dsize);
+ /* Timer not started for the incomplete elements */
+ return elem->filled == MAC_FILLED;
}
-/* Timeout variant */
-
-static int
-bitmap_ipmac_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_is_filled(const struct bitmap_ipmac_elem *elem)
{
- 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 ||
- ether_addr_equal(data->ether, elem->ether)) &&
- !bitmap_expired(map, data->id);
- }
- return 0;
+ return elem->filled == MAC_FILLED;
}
-static int
-bitmap_ipmac_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_add_timeout(unsigned long *timeout,
+ const struct bitmap_ipmac_adt_elem *e,
+ const struct ip_set_ext *ext,
+ struct bitmap_ipmac *map, int mode)
{
- 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;
+ u32 t = ext->timeout;
- 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)
+ if (mode == IPSET_ADD_START_STORED_TIMEOUT) {
+ if (t == 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;
+ t = *timeout;
+ ip_set_timeout_set(timeout, t);
+ } else {
/* 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;
+ if (e->ether)
+ ip_set_timeout_set(timeout, t);
+ else
+ *timeout = t;
}
-
return 0;
}
-static int
-bitmap_ipmac_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e,
+ struct bitmap_ipmac *map, u32 flags)
{
- struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- struct ipmac_telem *elem = bitmap_ipmac_elem(map, data->id);
+ struct bitmap_ipmac_elem *elem;
+
+ elem = get_elem(map->extensions, e->id, map->dsize);
+ if (test_and_set_bit(e->id, map->members)) {
+ if (elem->filled == MAC_FILLED) {
+ if (e->ether && (flags & IPSET_FLAG_EXIST))
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ return IPSET_ADD_FAILED;
+ } else if (!e->ether)
+ /* Already added without ethernet address */
+ return IPSET_ADD_FAILED;
+ /* Fill the MAC address and trigger the timer activation */
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ elem->filled = MAC_FILLED;
+ return IPSET_ADD_START_STORED_TIMEOUT;
+ } else if (e->ether) {
+ /* We can store MAC too */
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ elem->filled = MAC_FILLED;
+ return 0;
+ } else {
+ elem->filled = MAC_UNSET;
+ /* MAC is not stored yet, don't start timer */
+ return IPSET_ADD_STORE_PLAIN_TIMEOUT;
+ }
+}
- if (elem->match == MAC_EMPTY || bitmap_expired(map, data->id))
- return -IPSET_ERR_EXIST;
+static inline int
+bitmap_ipmac_do_del(const struct bitmap_ipmac_adt_elem *e,
+ struct bitmap_ipmac *map)
+{
+ return !test_and_clear_bit(e->id, map->members);
+}
- elem->match = MAC_EMPTY;
+static inline unsigned long
+ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout)
+{
+ const struct bitmap_ipmac_elem *elem =
+ get_elem(map->extensions, id, map->dsize);
- return 0;
+ return elem->filled == MAC_FILLED ? ip_set_timeout_get(timeout) :
+ *timeout;
}
-static int
-bitmap_ipmac_tlist(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ipmac_do_list(struct sk_buff *skb, const struct bitmap_ipmac *map,
+ u32 id)
{
- 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;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id)) ||
- (elem->match == MAC_FILLED &&
- nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN,
- elem->ether)))
- goto nla_put_failure;
- timeout = elem->match == MAC_UNSET ? elem->timeout
- : ip_set_timeout_get(elem->timeout);
- if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(timeout)))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, atd);
- /* Set listing finished */
- cb->args[2] = 0;
+ const struct bitmap_ipmac_elem *elem =
+ get_elem(map->extensions, id, map->dsize);
- return 0;
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP,
+ htonl(map->first_ip + id)) ||
+ (elem->filled == MAC_FILLED &&
+ nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN, elem->ether));
+}
-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;
+static inline int
+bitmap_ipmac_do_head(struct sk_buff *skb, const struct bitmap_ipmac *map)
+{
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip)) ||
+ nla_put_ipaddr4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
}
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)
+ enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
struct bitmap_ipmac *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- struct ipmac data;
+ struct bitmap_ipmac_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+ u32 ip;
/* 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)
+ ip = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
+ if (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
/* Backward compatibility: we don't check the second flag */
(skb_mac_header(skb) + ETH_HLEN) > skb->data)
return -EINVAL;
- data.id -= map->first_ip;
- data.ether = eth_hdr(skb)->h_source;
+ e.id = ip_to_id(map, ip);
+ e.ether = eth_hdr(skb)->h_source;
- return adtfn(set, &data, opt_timeout(opt, map), opt->cmdflags);
+ return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
{
const struct bitmap_ipmac *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- struct ipmac data;
- u32 timeout = map->timeout;
+ struct bitmap_ipmac_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+ u32 ip;
int ret = 0;
if (unlikely(!tb[IPSET_ATTR_IP] ||
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
- ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &data.id);
+ ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
+ ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
- if (data.id < map->first_ip || data.id > map->last_ip)
+ if (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
+ e.id = ip_to_id(map, ip);
if (tb[IPSET_ATTR_ETHER])
- data.ether = nla_data(tb[IPSET_ATTR_ETHER]);
+ e.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]);
- }
+ e.ether = NULL;
- data.id -= map->first_ip;
-
- ret = adtfn(set, &data, timeout, flags);
+ ret = adtfn(set, &e, &ext, &ext, 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;
- if (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))) ||
- (with_timeout(map->timeout) &&
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))))
- goto nla_put_failure;
- 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)
{
return x->first_ip == y->first_ip &&
x->last_ip == y->last_ip &&
- x->timeout == y->timeout;
+ x->timeout == y->timeout &&
+ a->extensions == b->extensions;
}
-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);
+/* Plain variant */
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+/* Timeout variant */
-static void
-bitmap_ipmac_gc_init(struct ip_set *set)
-{
- struct bitmap_ipmac *map = set->data;
+struct bitmap_ipmact_elem {
+ struct {
+ unsigned char ether[ETH_ALEN];
+ unsigned char filled;
+ } __attribute__ ((aligned));
+ unsigned long timeout;
+};
- 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);
-}
+#include "ip_set_bitmap_gen.h"
/* 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)
+ u32 first_ip, u32 last_ip, u32 elements)
{
map->members = ip_set_alloc((last_ip - first_ip + 1) * map->dsize);
if (!map->members)
return false;
+ if (map->dsize) {
+ map->extensions = ip_set_alloc(map->dsize * elements);
+ if (!map->extensions) {
+ kfree(map->members);
+ return false;
+ }
+ }
map->first_ip = first_ip;
map->last_ip = last_ip;
+ map->elements = elements;
map->timeout = IPSET_NO_TIMEOUT;
set->data = map;
if (!map)
return -ENOMEM;
+ map->memsize = bitmap_bytes(0, elements - 1);
+ set->variant = &bitmap_ipmac;
if (tb[IPSET_ATTR_TIMEOUT]) {
- map->dsize = sizeof(struct ipmac_telem);
+ map->dsize = sizeof(struct bitmap_ipmact_elem);
+ map->offset[IPSET_OFFSET_TIMEOUT] =
+ offsetof(struct bitmap_ipmact_elem, timeout);
- if (!init_map_ipmac(set, map, first_ip, last_ip)) {
+ if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
kfree(map);
return -ENOMEM;
}
-
map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-
- set->variant = &bitmap_tipmac;
-
- bitmap_ipmac_gc_init(set);
+ set->extensions |= IPSET_EXT_TIMEOUT;
+ bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
} else {
- map->dsize = sizeof(struct ipmac_elem);
+ map->dsize = sizeof(struct bitmap_ipmac_elem);
- if (!init_map_ipmac(set, map, first_ip, last_ip)) {
+ if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
kfree(map);
return -ENOMEM;
}
set->variant = &bitmap_ipmac;
-
}
return 0;
}
-/* 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
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_bitmap.h>
#include <linux/netfilter/ipset/ip_set_getport.h>
-#define IP_SET_BITMAP_TIMEOUT
-#include <linux/netfilter/ipset/ip_set_timeout.h>
#define REVISION_MIN 0
#define REVISION_MAX 0
IP_SET_MODULE_DESC("bitmap:port", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_bitmap:port");
+#define MTYPE bitmap_port
+
/* Type structure */
struct bitmap_port {
void *members; /* the set members */
+ void *extensions; /* data extensions */
u16 first_port; /* host byte order, included in range */
u16 last_port; /* host byte order, included in range */
+ u32 elements; /* number of max elements in the set */
size_t memsize; /* members size */
+ size_t dsize; /* extensions struct size */
+ size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
u32 timeout; /* timeout parameter */
struct timer_list gc; /* garbage collection */
};
-/* Base variant */
+/* ADT structure for generic function args */
+struct bitmap_port_adt_elem {
+ u16 id;
+};
-static int
-bitmap_port_test(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline u16
+port_to_id(const struct bitmap_port *m, u16 port)
{
- const struct bitmap_port *map = set->data;
- u16 id = *(u16 *)value;
-
- return !!test_bit(id, map->members);
+ return port - m->first_port;
}
-static int
-bitmap_port_add(struct ip_set *set, void *value, u32 timeout, u32 flags)
-{
- struct bitmap_port *map = set->data;
- u16 id = *(u16 *)value;
-
- if (test_and_set_bit(id, map->members))
- return -IPSET_ERR_EXIST;
-
- return 0;
-}
+/* Common functions */
-static int
-bitmap_port_del(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_port_do_test(const struct bitmap_port_adt_elem *e,
+ const struct bitmap_port *map)
{
- struct bitmap_port *map = set->data;
- u16 id = *(u16 *)value;
-
- if (!test_and_clear_bit(id, map->members))
- return -IPSET_ERR_EXIST;
-
- return 0;
+ return !!test_bit(e->id, map->members);
}
-static int
-bitmap_port_list(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_port_gc_test(u16 id, const struct bitmap_port *map)
{
- const struct bitmap_port *map = set->data;
- struct nlattr *atd, *nested;
- u16 id, first = cb->args[2];
- u16 last = map->last_port - map->first_port;
-
- atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!atd)
- return -EMSGSIZE;
- for (; cb->args[2] <= last; cb->args[2]++) {
- id = cb->args[2];
- if (!test_bit(id, map->members))
- 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;
- }
- if (nla_put_net16(skb, IPSET_ATTR_PORT,
- htons(map->first_port + id)))
- goto nla_put_failure;
- 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;
+ return !!test_bit(id, map->members);
}
-/* Timeout variant */
-
-static int
-bitmap_port_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_port_do_add(const struct bitmap_port_adt_elem *e,
+ struct bitmap_port *map, u32 flags)
{
- const struct bitmap_port *map = set->data;
- const unsigned long *members = map->members;
- u16 id = *(u16 *)value;
-
- return ip_set_timeout_test(members[id]);
+ return !!test_and_set_bit(e->id, map->members);
}
-static int
-bitmap_port_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_port_do_del(const struct bitmap_port_adt_elem *e,
+ struct bitmap_port *map)
{
- struct bitmap_port *map = set->data;
- unsigned long *members = map->members;
- u16 id = *(u16 *)value;
-
- if (ip_set_timeout_test(members[id]) && !(flags & IPSET_FLAG_EXIST))
- return -IPSET_ERR_EXIST;
-
- members[id] = ip_set_timeout_set(timeout);
-
- return 0;
+ return !test_and_clear_bit(e->id, map->members);
}
-static int
-bitmap_port_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_port_do_list(struct sk_buff *skb, const struct bitmap_port *map, u32 id)
{
- struct bitmap_port *map = set->data;
- unsigned long *members = map->members;
- u16 id = *(u16 *)value;
- int ret = -IPSET_ERR_EXIST;
-
- if (ip_set_timeout_test(members[id]))
- ret = 0;
-
- members[id] = IPSET_ELEM_UNSET;
- return ret;
+ return nla_put_net16(skb, IPSET_ATTR_PORT,
+ htons(map->first_port + id));
}
-static int
-bitmap_port_tlist(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_port_do_head(struct sk_buff *skb, const struct bitmap_port *map)
{
- const struct bitmap_port *map = set->data;
- struct nlattr *adt, *nested;
- u16 id, first = cb->args[2];
- u16 last = map->last_port - map->first_port;
- const unsigned long *members = map->members;
-
- adt = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!adt)
- return -EMSGSIZE;
- for (; cb->args[2] <= last; cb->args[2]++) {
- id = cb->args[2];
- if (!ip_set_timeout_test(members[id]))
- continue;
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested) {
- if (id == first) {
- nla_nest_cancel(skb, adt);
- return -EMSGSIZE;
- } else
- goto nla_put_failure;
- }
- if (nla_put_net16(skb, IPSET_ATTR_PORT,
- htons(map->first_port + id)) ||
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
- htonl(ip_set_timeout_get(members[id]))))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, adt);
-
- /* Set listing finished */
- cb->args[2] = 0;
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, nested);
- ipset_nest_end(skb, adt);
- if (unlikely(id == first)) {
- cb->args[2] = 0;
- return -EMSGSIZE;
- }
- return 0;
+ return nla_put_net16(skb, IPSET_ATTR_PORT, htons(map->first_port)) ||
+ nla_put_net16(skb, IPSET_ATTR_PORT_TO, htons(map->last_port));
}
static int
bitmap_port_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 bitmap_port *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
+ struct bitmap_port_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
__be16 __port;
u16 port = 0;
if (port < map->first_port || port > map->last_port)
return -IPSET_ERR_BITMAP_RANGE;
- port -= map->first_port;
+ e.id = port_to_id(map, port);
- return adtfn(set, &port, opt_timeout(opt, map), opt->cmdflags);
+ return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
{
struct bitmap_port *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- u32 timeout = map->timeout;
+ struct bitmap_port_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
u32 port; /* wraparound */
- u16 id, port_to;
+ u16 port_to;
int ret = 0;
if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
port = ip_set_get_h16(tb[IPSET_ATTR_PORT]);
if (port < map->first_port || port > map->last_port)
return -IPSET_ERR_BITMAP_RANGE;
-
- if (tb[IPSET_ATTR_TIMEOUT]) {
- if (!with_timeout(map->timeout))
- return -IPSET_ERR_TIMEOUT;
- timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
- }
+ ret = ip_set_get_extensions(set, tb, &ext);
+ if (ret)
+ return ret;
if (adt == IPSET_TEST) {
- id = port - map->first_port;
- return adtfn(set, &id, timeout, flags);
+ e.id = port_to_id(map, port);
+ return adtfn(set, &e, &ext, &ext, flags);
}
if (tb[IPSET_ATTR_PORT_TO]) {
return -IPSET_ERR_BITMAP_RANGE;
for (; port <= port_to; port++) {
- id = port - map->first_port;
- ret = adtfn(set, &id, timeout, flags);
+ e.id = port_to_id(map, port);
+ ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
return ret;
}
-static void
-bitmap_port_destroy(struct ip_set *set)
-{
- struct bitmap_port *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_port_flush(struct ip_set *set)
-{
- struct bitmap_port *map = set->data;
-
- memset(map->members, 0, map->memsize);
-}
-
-static int
-bitmap_port_head(struct ip_set *set, struct sk_buff *skb)
-{
- const struct bitmap_port *map = set->data;
- struct nlattr *nested;
-
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested)
- goto nla_put_failure;
- if (nla_put_net16(skb, IPSET_ATTR_PORT, htons(map->first_port)) ||
- nla_put_net16(skb, IPSET_ATTR_PORT_TO, htons(map->last_port)) ||
- nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
- nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
- htonl(sizeof(*map) + map->memsize)) ||
- (with_timeout(map->timeout) &&
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
-
- return 0;
-nla_put_failure:
- return -EMSGSIZE;
-}
-
static bool
bitmap_port_same_set(const struct ip_set *a, const struct ip_set *b)
{
return x->first_port == y->first_port &&
x->last_port == y->last_port &&
- x->timeout == y->timeout;
+ x->timeout == y->timeout &&
+ a->extensions == b->extensions;
}
-static const struct ip_set_type_variant bitmap_port = {
- .kadt = bitmap_port_kadt,
- .uadt = bitmap_port_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_port_add,
- [IPSET_DEL] = bitmap_port_del,
- [IPSET_TEST] = bitmap_port_test,
- },
- .destroy = bitmap_port_destroy,
- .flush = bitmap_port_flush,
- .head = bitmap_port_head,
- .list = bitmap_port_list,
- .same_set = bitmap_port_same_set,
-};
+/* Plain variant */
-static const struct ip_set_type_variant bitmap_tport = {
- .kadt = bitmap_port_kadt,
- .uadt = bitmap_port_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_port_tadd,
- [IPSET_DEL] = bitmap_port_tdel,
- [IPSET_TEST] = bitmap_port_ttest,
- },
- .destroy = bitmap_port_destroy,
- .flush = bitmap_port_flush,
- .head = bitmap_port_head,
- .list = bitmap_port_tlist,
- .same_set = bitmap_port_same_set,
+struct bitmap_port_elem {
};
-static void
-bitmap_port_gc(unsigned long ul_set)
-{
- struct ip_set *set = (struct ip_set *) ul_set;
- struct bitmap_port *map = set->data;
- unsigned long *table = map->members;
- u32 id; /* wraparound */
- u16 last = map->last_port - map->first_port;
-
- /* 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++)
- if (ip_set_timeout_expired(table[id]))
- table[id] = IPSET_ELEM_UNSET;
- read_unlock_bh(&set->lock);
-
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
-
-static void
-bitmap_port_gc_init(struct ip_set *set)
-{
- struct bitmap_port *map = set->data;
+/* Timeout variant */
+struct bitmap_portt_elem {
+ unsigned long timeout;
+};
- init_timer(&map->gc);
- map->gc.data = (unsigned long) set;
- map->gc.function = bitmap_port_gc;
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+#include "ip_set_bitmap_gen.h"
/* Create bitmap:ip type of sets */
map->members = ip_set_alloc(map->memsize);
if (!map->members)
return false;
+ if (map->dsize) {
+ map->extensions = ip_set_alloc(map->dsize * map->elements);
+ if (!map->extensions) {
+ kfree(map->members);
+ return false;
+ }
+ }
map->first_port = first_port;
map->last_port = last_port;
map->timeout = IPSET_NO_TIMEOUT;
}
static int
-bitmap_port_create(struct ip_set *set, struct nlattr *tb[],
- u32 flags)
+bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
struct bitmap_port *map;
u16 first_port, last_port;
if (!map)
return -ENOMEM;
+ map->elements = last_port - first_port + 1;
+ map->memsize = map->elements * sizeof(unsigned long);
+ set->variant = &bitmap_port;
if (tb[IPSET_ATTR_TIMEOUT]) {
- map->memsize = (last_port - first_port + 1)
- * sizeof(unsigned long);
-
+ map->dsize = sizeof(struct bitmap_portt_elem);
+ map->offset[IPSET_OFFSET_TIMEOUT] =
+ offsetof(struct bitmap_portt_elem, timeout);
if (!init_map_port(set, map, first_port, last_port)) {
kfree(map);
return -ENOMEM;
}
map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
- set->variant = &bitmap_tport;
-
- bitmap_port_gc_init(set);
+ set->extensions |= IPSET_EXT_TIMEOUT;
+ bitmap_port_gc_init(set, bitmap_port_gc);
} else {
- map->memsize = bitmap_bytes(0, last_port - first_port);
- pr_debug("memsize: %zu\n", map->memsize);
+ map->dsize = 0;
if (!init_map_port(set, map, first_port, last_port)) {
kfree(map);
return -ENOMEM;
}
- set->variant = &bitmap_port;
}
return 0;
}
projects / kernel / kernel-generic.git / commitdiff