static int
list_set_list(const struct ip_set *set,
struct sk_buff *skb, struct netlink_callback *cb)
{
const struct list_set *map = set->data;
struct nlattr *atd, *nested;
u32 i, first = cb->args[2];
const struct set_elem *e;
atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
if (!atd)
return -EMSGSIZE;
for (; cb->args[2] < map->size; cb->args[2]++) {
i = cb->args[2];
e = list_set_elem(map, i);
if (e->id == IPSET_INVALID_ID)
goto finish;
if (with_timeout(map->timeout) && list_set_expired(map, i))
continue;
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
if (!nested) {
if (i == first) {
nla_nest_cancel(skb, atd);
return -EMSGSIZE;
} else
goto nla_put_failure;
}
if (nla_put_string(skb, IPSET_ATTR_NAME,
ip_set_name_byindex(e->id)))
goto nla_put_failure;
if (with_timeout(map->timeout)) {
const struct set_telem *te =
(const struct set_telem *) e;
__be32 to = htonl(ip_set_timeout_get(te->timeout));
if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT, to))
goto nla_put_failure;
}
ipset_nest_end(skb, nested);
}
finish:
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(i == first)) {
cb->args[2] = 0;
return -EMSGSIZE;
}
return 0;
}
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 int
bitmap_port_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags)
{
struct bitmap_port *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
u32 timeout = map->timeout;
u32 port; /* wraparound */
u16 id, port_to;
int ret = 0;
if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
!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]);
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]);
}
if (adt == IPSET_TEST) {
id = port - map->first_port;
return adtfn(set, &id, timeout, flags);
}
if (tb[IPSET_ATTR_PORT_TO]) {
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to) {
swap(port, port_to);
if (port < map->first_port)
return -IPSET_ERR_BITMAP_RANGE;
}
} else
port_to = port;
if (port_to > map->last_port)
return -IPSET_ERR_BITMAP_RANGE;
for (; port <= port_to; port++) {
id = port - map->first_port;
ret = adtfn(set, &id, timeout, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
}
return ret;
}
static void
list_set_destroy(struct ip_set *set)
{
struct list_set *map = set->data;
if (with_timeout(map->timeout))
del_timer_sync(&map->gc);
list_set_flush(set);
kfree(map);
set->data = NULL;
}
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 bool
id_eq_timeout(const struct list_set *map, u32 i, ip_set_id_t id)
{
const struct set_elem *elem;
if (i < map->size) {
elem = list_set_elem(map, i);
return !!(elem->id == id &&
!(with_timeout(map->timeout) &&
list_set_expired(map, i)));
}
return 0;
}
static int
list_set_add(struct list_set *map, u32 i, ip_set_id_t id,
unsigned long timeout)
{
const struct set_elem *e = list_set_elem(map, i);
if (i == map->size - 1 && e->id != IPSET_INVALID_ID)
/* Last element replaced: e.g. add new,before,last */
ip_set_put_byindex(e->id);
if (with_timeout(map->timeout))
list_elem_tadd(map, i, id, ip_set_timeout_set(timeout));
else
list_elem_add(map, i, id);
return 0;
}
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 int
list_set_head(struct ip_set *set, struct sk_buff *skb)
{
const struct list_set *map = set->data;
struct nlattr *nested;
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
if (!nested)
goto nla_put_failure;
NLA_PUT_NET32(skb, IPSET_ATTR_SIZE, htonl(map->size));
if (with_timeout(map->timeout))
NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout));
NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map) + map->size * map->dsize));
ipset_nest_end(skb, nested);
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int
list_set_del(struct list_set *map, u32 i)
{
struct set_elem *a = list_set_elem(map, i), *b;
ip_set_put_byindex(a->id);
for (; i < map->size - 1; i++) {
b = list_set_elem(map, i + 1);
a->id = b->id;
if (with_timeout(map->timeout))
((struct set_telem *)a)->timeout =
((struct set_telem *)b)->timeout;
a = b;
if (a->id == IPSET_INVALID_ID)
break;
}
/* Last element */
a->id = IPSET_INVALID_ID;
return 0;
}
static int
list_set_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 list_set *map = set->data;
struct set_elem *elem;
u32 i;
int ret;
for (i = 0; i < map->size; i++) {
elem = list_set_elem(map, i);
if (elem->id == IPSET_INVALID_ID)
return 0;
if (with_timeout(map->timeout) && list_set_expired(map, i))
continue;
switch (adt) {
case IPSET_TEST:
ret = ip_set_test(elem->id, skb, par, opt);
if (ret > 0)
return ret;
break;
case IPSET_ADD:
ret = ip_set_add(elem->id, skb, par, opt);
if (ret == 0)
return ret;
break;
case IPSET_DEL:
ret = ip_set_del(elem->id, skb, par, opt);
if (ret == 0)
return ret;
break;
default:
break;
}
}
return -EINVAL;
}
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;
ipset_adtfn adtfn = set->variant->adt[adt];
union nf_inet_addr ip;
u32 timeout = h->timeout;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
tb[IPSET_ATTR_IP_TO] ||
tb[IPSET_ATTR_CIDR]))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &ip);
if (ret)
return ret;
ip6_netmask(&ip, h->netmask);
if (ipv6_addr_any(&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);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
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;
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, htonl(map->first_ip));
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
if (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));
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 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;
ipset_adtfn adtfn = set->variant->adt[adt];
u32 ip, ip_to, hosts, timeout = h->timeout;
__be32 nip;
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], &ip);
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)
return -IPSET_ERR_HASH_ELEM;
return adtfn(set, &nip, timeout, flags);
}
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
return ret;
if (ip > ip_to)
swap(ip, ip_to);
} else if (tb[IPSET_ATTR_CIDR]) {
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip_set_mask_from_to(ip, ip_to, cidr);
} else
ip_to = ip;
hosts = h->netmask == 32 ? 1 : 2 << (32 - h->netmask - 1);
if (retried)
ip = h->next.ip;
for (; !before(ip_to, ip); ip += hosts) {
nip = htonl(ip);
if (nip == 0)
return -IPSET_ERR_HASH_ELEM;
ret = adtfn(set, &nip, timeout, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
}
return ret;
}
static int
bitmap_ip_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags)
{
struct bitmap_ip *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
u32 timeout = map->timeout;
u32 ip, ip_to, id;
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], &ip);
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);
}
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
return ret;
if (ip > ip_to) {
swap(ip, ip_to);
if (ip < map->first_ip)
return -IPSET_ERR_BITMAP_RANGE;
}
} else if (tb[IPSET_ATTR_CIDR]) {
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip &= ip_set_hostmask(cidr);
ip_to = ip | ~ip_set_hostmask(cidr);
} else
ip_to = ip;
if (ip_to > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
for (; !before(ip_to, ip); ip += map->hosts) {
id = ip_to_id(map, ip);
ret = adtfn(set, &id, timeout);;
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
}
return ret;
}
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;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport6_elem data = { };
u32 port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
tb[IPSET_ATTR_IP_TO] ||
tb[IPSET_ATTR_CIDR]))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.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);
if (data.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 (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
ret = adtfn(set, &data, timeout, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
port = ntohs(data.port);
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
if (retried)
port = ntohs(h->next.port);
for (; port <= port_to; port++) {
data.port = htons(port);
ret = adtfn(set, &data, timeout, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
}
return ret;
}
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)
{
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net6_elem data = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
};
if (data.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
ip6_netmask(&data.ip, data.cidr);
return adtfn(set, &data, opt_timeout(opt, h), 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;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net6_elem data = { .cidr = HOST_MASK };
u32 timeout = h->timeout;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
return -IPSET_ERR_PROTOCOL;
if (unlikely(tb[IPSET_ATTR_IP_TO]))
return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
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)
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]);
}
if (tb[IPSET_ATTR_CADT_FLAGS] && adt == IPSET_ADD) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (cadt_flags << 16);
}
ret = adtfn(set, &data, timeout, flags);
return 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 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)
{
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
};
if (data.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
data.ip &= ip_set_netmask(data.cidr);
return adtfn(set, &data, opt_timeout(opt, h), 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;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = { .cidr = HOST_MASK };
u32 timeout = h->timeout;
u32 ip = 0, ip_to, last;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
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)
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] && adt == IPSET_ADD) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (cadt_flags << 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);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
ip_to = ip;
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
return ret;
if (ip_to < ip)
swap(ip, ip_to);
if (ip + UINT_MAX == ip_to)
return -IPSET_ERR_HASH_RANGE;
}
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);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
ip = last + 1;
}
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 */
struct hash_net6_elem {
union nf_inet_addr ip;
u16 padding0;
u8 nomatch;
u8 cidr;
};
struct hash_net6_telem {
union nf_inet_addr ip;
u16 padding0;
u8 nomatch;
u8 cidr;
unsigned long timeout;
};
static inline bool
hash_net6_data_equal(const struct hash_net6_elem *ip1,
const struct hash_net6_elem *ip2,
u32 *multi)
{
return ipv6_addr_cmp(&ip1->ip.in6, &ip2->ip.in6) == 0 &&
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 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;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport4_elem data = { };
u32 ip, ip_to, p = 0, port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
!ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
!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_ipaddr4(tb[IPSET_ATTR_IP], &data.ip);
if (ret)
return ret;
if (tb[IPSET_ATTR_PORT])
data.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);
if (data.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 (adt == IPSET_TEST ||
!(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_CIDR] ||
tb[IPSET_ATTR_PORT_TO])) {
ret = adtfn(set, &data, timeout, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
ip_to = ip = ntohl(data.ip);
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
return ret;
if (ip > ip_to)
swap(ip, ip_to);
} else if (tb[IPSET_ATTR_CIDR]) {
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!cidr || cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip_set_mask_from_to(ip, ip_to, cidr);
}
port_to = port = ntohs(data.port);
if (with_ports && tb[IPSET_ATTR_PORT_TO]) {
port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (port > port_to)
swap(port, port_to);
}
if (retried)
ip = ntohl(h->next.ip);
for (; !before(ip_to, ip); ip++) {
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++) {
data.ip = htonl(ip);
data.port = htons(p);
ret = adtfn(set, &data, timeout, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
else
ret = 0;
}
}
return ret;
}
static int
hash_net4_kadt(struct ip_set *set, const struct sk_buff *skb,
enum ipset_adt adt, u8 pf, u8 dim, u8 flags)
{
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = {
.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
};
if (data.cidr == 0)
return -EINVAL;
if (adt == IPSET_TEST)
data.cidr = HOST_MASK;
ip4addrptr(skb, flags & IPSET_DIM_ONE_SRC, &data.ip);
data.ip &= ip_set_netmask(data.cidr);
return adtfn(set, &data, h->timeout);
}
static int
hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
enum ipset_adt adt, u32 *lineno, u32 flags)
{
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem data = { .cidr = HOST_MASK };
u32 timeout = h->timeout;
int ret;
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_ipaddr4(tb[IPSET_ATTR_IP], &data.ip);
if (ret)
return ret;
if (tb[IPSET_ATTR_CIDR])
data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
if (!data.cidr)
return -IPSET_ERR_INVALID_CIDR;
data.ip &= ip_set_netmask(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]);
}
ret = adtfn(set, &data, timeout);
return ip_set_eexist(ret, flags) ? 0 : 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 */
struct hash_net6_elem {
union nf_inet_addr ip;
u16 padding0;
u8 padding1;
u8 cidr;
};
struct hash_net6_telem {
union nf_inet_addr ip;
u16 padding0;
u8 padding1;
u8 cidr;
unsigned long timeout;
};
static inline bool
hash_net6_data_equal(const struct hash_net6_elem *ip1,
const struct hash_net6_elem *ip2)
{
return ipv6_addr_cmp(&ip1->ip.in6, &ip2->ip.in6) == 0 &&
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)
{
ipv6_addr_copy(&dst->ip.in6, &src->ip.in6);
dst->cidr = src->cidr;
}
