net/netfilter/ipset/ip_set_hash_ipportnet.c

   1 /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 as
   5  * published by the Free Software Foundation.
   6  */
   7
   8 /* Kernel module implementing an IP set type: the hash:ip,port,net type */
   9
  10 #include <linux/jhash.h>
  11 #include <linux/module.h>
  12 #include <linux/ip.h>
  13 #include <linux/skbuff.h>
  14 #include <linux/errno.h>
  15 #include <linux/random.h>
  16 #include <net/ip.h>
  17 #include <net/ipv6.h>
  18 #include <net/netlink.h>
  19 #include <net/tcp.h>
  20
  21 #include <linux/netfilter.h>
  22 #include <linux/netfilter/ipset/pfxlen.h>
  23 #include <linux/netfilter/ipset/ip_set.h>
  24 #include <linux/netfilter/ipset/ip_set_getport.h>
  25 #include <linux/netfilter/ipset/ip_set_hash.h>
  26
  27 #define IPSET_TYPE_REV_MIN      0
  28 /*                              1    SCTP and UDPLITE support added */
  29 /*                              2    Range as input support for IPv4 added */
  30 /*                              3    nomatch flag support added */
  31 /*                              4    Counters support added */
  32 /*                              5    Comments support added */
  33 /*                              6    Forceadd support added */
  34 #define IPSET_TYPE_REV_MAX      7 /* skbinfo support added */
  35
  36 MODULE_LICENSE("GPL");
  37 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
  38 IP_SET_MODULE_DESC("hash:ip,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
  39 MODULE_ALIAS("ip_set_hash:ip,port,net");
  40
  41 /* Type specific function prefix */
  42 #define HTYPE           hash_ipportnet
  43
  44 /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0
  45  * However this way we have to store internally cidr - 1,
  46  * dancing back and forth.
  47  */
  48 #define IP_SET_HASH_WITH_NETS_PACKED
  49 #define IP_SET_HASH_WITH_PROTO
  50 #define IP_SET_HASH_WITH_NETS
  51
  52 /* IPv4 variant */
  53
  54 /* Member elements */
  55 struct hash_ipportnet4_elem {
  56         __be32 ip;
  57         __be32 ip2;
  58         __be16 port;
  59         u8 cidr:7;
  60         u8 nomatch:1;
  61         u8 proto;
  62 };
  63
  64 /* Common functions */
  65
  66 static inline bool
  67 hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1,
  68                            const struct hash_ipportnet4_elem *ip2,
  69                            u32 *multi)
  70 {
  71         return ip1->ip == ip2->ip &&
  72                ip1->ip2 == ip2->ip2 &&
  73                ip1->cidr == ip2->cidr &&
  74                ip1->port == ip2->port &&
  75                ip1->proto == ip2->proto;
  76 }
  77
  78 static inline int
  79 hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem)
  80 {
  81         return elem->nomatch ? -ENOTEMPTY : 1;
  82 }
  83
  84 static inline void
  85 hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags)
  86 {
  87         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
  88 }
  89
  90 static inline void
  91 hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags)
  92 {
  93         swap(*flags, elem->nomatch);
  94 }
  95
  96 static inline void
  97 hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr)
  98 {
  99         elem->ip2 &= ip_set_netmask(cidr);
 100         elem->cidr = cidr - 1;
 101 }
 102
 103 static bool
 104 hash_ipportnet4_data_list(struct sk_buff *skb,
 105                           const struct hash_ipportnet4_elem *data)
 106 {
 107         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 108
 109         if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) ||
 110             nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) ||
 111             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 112             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) ||
 113             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 114             (flags &&
 115              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 116                 goto nla_put_failure;
 117         return false;
 118
 119 nla_put_failure:
 120         return true;
 121 }
 122
 123 static inline void
 124 hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next,
 125                           const struct hash_ipportnet4_elem *d)
 126 {
 127         next->ip = d->ip;
 128         next->port = d->port;
 129         next->ip2 = d->ip2;
 130 }
 131
 132 #define MTYPE           hash_ipportnet4
 133 #define HOST_MASK       32
 134 #include "ip_set_hash_gen.h"
 135
 136 static int
 137 hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 138                      const struct xt_action_param *par,
 139                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 140 {
 141         const struct hash_ipportnet4 *h = set->data;
 142         ipset_adtfn adtfn = set->variant->adt[adt];
 143         struct hash_ipportnet4_elem e = {
 144                 .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 145         };
 146         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 147
 148         if (adt == IPSET_TEST)
 149                 e.cidr = HOST_MASK - 1;
 150
 151         if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 152                                  &e.port, &e.proto))
 153                 return -EINVAL;
 154
 155         ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
 156         ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2);
 157         e.ip2 &= ip_set_netmask(e.cidr + 1);
 158
 159         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 160 }
 161
 162 static int
 163 hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 164                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 165 {
 166         const struct hash_ipportnet4 *h = set->data;
 167         ipset_adtfn adtfn = set->variant->adt[adt];
 168         struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 };
 169         struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 170         u32 ip = 0, ip_to = 0, p = 0, port, port_to;
 171         u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
 172         bool with_ports = false;
 173         u8 cidr;
 174         int ret;
 175
 176         if (tb[IPSET_ATTR_LINENO])
 177                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 178
 179         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 180                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 181                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 182                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
 183                 return -IPSET_ERR_PROTOCOL;
 184
 185         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
 186         if (ret)
 187                 return ret;
 188
 189         ret = ip_set_get_extensions(set, tb, &ext);
 190         if (ret)
 191                 return ret;
 192
 193         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
 194         if (ret)
 195                 return ret;
 196
 197         if (tb[IPSET_ATTR_CIDR2]) {
 198                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 199                 if (!cidr || cidr > HOST_MASK)
 200                         return -IPSET_ERR_INVALID_CIDR;
 201                 e.cidr = cidr - 1;
 202         }
 203
 204         e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 205
 206         if (tb[IPSET_ATTR_PROTO]) {
 207                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 208                 with_ports = ip_set_proto_with_ports(e.proto);
 209
 210                 if (e.proto == 0)
 211                         return -IPSET_ERR_INVALID_PROTO;
 212         } else {
 213                 return -IPSET_ERR_MISSING_PROTO;
 214         }
 215
 216         if (!(with_ports || e.proto == IPPROTO_ICMP))
 217                 e.port = 0;
 218
 219         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 220                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 221
 222                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 223                         flags |= (IPSET_FLAG_NOMATCH << 16);
 224         }
 225
 226         with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
 227         if (adt == IPSET_TEST ||
 228             !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports ||
 229               tb[IPSET_ATTR_IP2_TO])) {
 230                 e.ip = htonl(ip);
 231                 e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1));
 232                 ret = adtfn(set, &e, &ext, &ext, flags);
 233                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 234                        ip_set_eexist(ret, flags) ? 0 : ret;
 235         }
 236
 237         ip_to = ip;
 238         if (tb[IPSET_ATTR_IP_TO]) {
 239                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
 240                 if (ret)
 241                         return ret;
 242                 if (ip > ip_to)
 243                         swap(ip, ip_to);
 244         } else if (tb[IPSET_ATTR_CIDR]) {
 245                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 246
 247                 if (!cidr || cidr > HOST_MASK)
 248                         return -IPSET_ERR_INVALID_CIDR;
 249                 ip_set_mask_from_to(ip, ip_to, cidr);
 250         }
 251
 252         port_to = port = ntohs(e.port);
 253         if (tb[IPSET_ATTR_PORT_TO]) {
 254                 port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 255                 if (port > port_to)
 256                         swap(port, port_to);
 257         }
 258
 259         ip2_to = ip2_from;
 260         if (tb[IPSET_ATTR_IP2_TO]) {
 261                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
 262                 if (ret)
 263                         return ret;
 264                 if (ip2_from > ip2_to)
 265                         swap(ip2_from, ip2_to);
 266                 if (ip2_from + UINT_MAX == ip2_to)
 267                         return -IPSET_ERR_HASH_RANGE;
 268         } else {
 269                 ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1);
 270         }
 271
 272         if (retried)
 273                 ip = ntohl(h->next.ip);
 274         for (; ip <= ip_to; ip++) {
 275                 e.ip = htonl(ip);
 276                 p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
 277                                                        : port;
 278                 for (; p <= port_to; p++) {
 279                         e.port = htons(p);
 280                         ip2 = retried &&
 281                               ip == ntohl(h->next.ip) &&
 282                               p == ntohs(h->next.port)
 283                                 ? ntohl(h->next.ip2) : ip2_from;
 284                         while (ip2 <= ip2_to) {
 285                                 e.ip2 = htonl(ip2);
 286                                 ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
 287                                                                 &cidr);
 288                                 e.cidr = cidr - 1;
 289                                 ret = adtfn(set, &e, &ext, &ext, flags);
 290
 291                                 if (ret && !ip_set_eexist(ret, flags))
 292                                         return ret;
 293
 294                                 ret = 0;
 295                                 ip2 = ip2_last + 1;
 296                         }
 297                 }
 298         }
 299         return ret;
 300 }
 301
 302 /* IPv6 variant */
 303
 304 struct hash_ipportnet6_elem {
 305         union nf_inet_addr ip;
 306         union nf_inet_addr ip2;
 307         __be16 port;
 308         u8 cidr:7;
 309         u8 nomatch:1;
 310         u8 proto;
 311 };
 312
 313 /* Common functions */
 314
 315 static inline bool
 316 hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1,
 317                            const struct hash_ipportnet6_elem *ip2,
 318                            u32 *multi)
 319 {
 320         return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) &&
 321                ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) &&
 322                ip1->cidr == ip2->cidr &&
 323                ip1->port == ip2->port &&
 324                ip1->proto == ip2->proto;
 325 }
 326
 327 static inline int
 328 hash_ipportnet6_do_data_match(const struct hash_ipportnet6_elem *elem)
 329 {
 330         return elem->nomatch ? -ENOTEMPTY : 1;
 331 }
 332
 333 static inline void
 334 hash_ipportnet6_data_set_flags(struct hash_ipportnet6_elem *elem, u32 flags)
 335 {
 336         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
 337 }
 338
 339 static inline void
 340 hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *elem, u8 *flags)
 341 {
 342         swap(*flags, elem->nomatch);
 343 }
 344
 345 static inline void
 346 hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem *elem, u8 cidr)
 347 {
 348         ip6_netmask(&elem->ip2, cidr);
 349         elem->cidr = cidr - 1;
 350 }
 351
 352 static bool
 353 hash_ipportnet6_data_list(struct sk_buff *skb,
 354                           const struct hash_ipportnet6_elem *data)
 355 {
 356         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 357
 358         if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) ||
 359             nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) ||
 360             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 361             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) ||
 362             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 363             (flags &&
 364              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 365                 goto nla_put_failure;
 366         return false;
 367
 368 nla_put_failure:
 369         return true;
 370 }
 371
 372 static inline void
 373 hash_ipportnet6_data_next(struct hash_ipportnet6_elem *next,
 374                           const struct hash_ipportnet6_elem *d)
 375 {
 376         next->port = d->port;
 377 }
 378
 379 #undef MTYPE
 380 #undef HOST_MASK
 381
 382 #define MTYPE           hash_ipportnet6
 383 #define HOST_MASK       128
 384 #define IP_SET_EMIT_CREATE
 385 #include "ip_set_hash_gen.h"
 386
 387 static int
 388 hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 389                      const struct xt_action_param *par,
 390                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 391 {
 392         const struct hash_ipportnet6 *h = set->data;
 393         ipset_adtfn adtfn = set->variant->adt[adt];
 394         struct hash_ipportnet6_elem e = {
 395                 .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 396         };
 397         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 398
 399         if (adt == IPSET_TEST)
 400                 e.cidr = HOST_MASK - 1;
 401
 402         if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 403                                  &e.port, &e.proto))
 404                 return -EINVAL;
 405
 406         ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
 407         ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6);
 408         ip6_netmask(&e.ip2, e.cidr + 1);
 409
 410         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 411 }
 412
 413 static int
 414 hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 415                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 416 {
 417         const struct hash_ipportnet6 *h = set->data;
 418         ipset_adtfn adtfn = set->variant->adt[adt];
 419         struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 };
 420         struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 421         u32 port, port_to;
 422         bool with_ports = false;
 423         u8 cidr;
 424         int ret;
 425
 426         if (tb[IPSET_ATTR_LINENO])
 427                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 428
 429         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 430                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 431                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 432                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
 433                 return -IPSET_ERR_PROTOCOL;
 434         if (unlikely(tb[IPSET_ATTR_IP_TO]))
 435                 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
 436         if (unlikely(tb[IPSET_ATTR_CIDR])) {
 437                 u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 438
 439                 if (cidr != HOST_MASK)
 440                         return -IPSET_ERR_INVALID_CIDR;
 441         }
 442
 443         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip);
 444         if (ret)
 445                 return ret;
 446
 447         ret = ip_set_get_extensions(set, tb, &ext);
 448         if (ret)
 449                 return ret;
 450
 451         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2);
 452         if (ret)
 453                 return ret;
 454
 455         if (tb[IPSET_ATTR_CIDR2]) {
 456                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 457                 if (!cidr || cidr > HOST_MASK)
 458                         return -IPSET_ERR_INVALID_CIDR;
 459                 e.cidr = cidr - 1;
 460         }
 461
 462         ip6_netmask(&e.ip2, e.cidr + 1);
 463
 464         e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 465
 466         if (tb[IPSET_ATTR_PROTO]) {
 467                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 468                 with_ports = ip_set_proto_with_ports(e.proto);
 469
 470                 if (e.proto == 0)
 471                         return -IPSET_ERR_INVALID_PROTO;
 472         } else {
 473                 return -IPSET_ERR_MISSING_PROTO;
 474         }
 475
 476         if (!(with_ports || e.proto == IPPROTO_ICMPV6))
 477                 e.port = 0;
 478
 479         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 480                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 481
 482                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 483                         flags |= (IPSET_FLAG_NOMATCH << 16);
 484         }
 485
 486         if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
 487                 ret = adtfn(set, &e, &ext, &ext, flags);
 488                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 489                        ip_set_eexist(ret, flags) ? 0 : ret;
 490         }
 491
 492         port = ntohs(e.port);
 493         port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 494         if (port > port_to)
 495                 swap(port, port_to);
 496
 497         if (retried)
 498                 port = ntohs(h->next.port);
 499         for (; port <= port_to; port++) {
 500                 e.port = htons(port);
 501                 ret = adtfn(set, &e, &ext, &ext, flags);
 502
 503                 if (ret && !ip_set_eexist(ret, flags))
 504                         return ret;
 505
 506                 ret = 0;
 507         }
 508         return ret;
 509 }
 510
 511 static struct ip_set_type hash_ipportnet_type __read_mostly = {
 512         .name           = "hash:ip,port,net",
 513         .protocol       = IPSET_PROTOCOL,
 514         .features       = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
 515                           IPSET_TYPE_NOMATCH,
 516         .dimension      = IPSET_DIM_THREE,
 517         .family         = NFPROTO_UNSPEC,
 518         .revision_min   = IPSET_TYPE_REV_MIN,
 519         .revision_max   = IPSET_TYPE_REV_MAX,
 520         .create         = hash_ipportnet_create,
 521         .create_policy  = {
 522                 [IPSET_ATTR_HASHSIZE]   = { .type = NLA_U32 },
 523                 [IPSET_ATTR_MAXELEM]    = { .type = NLA_U32 },
 524                 [IPSET_ATTR_PROBES]     = { .type = NLA_U8 },
 525                 [IPSET_ATTR_RESIZE]     = { .type = NLA_U8  },
 526                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 527                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 528         },
 529         .adt_policy     = {
 530                 [IPSET_ATTR_IP]         = { .type = NLA_NESTED },
 531                 [IPSET_ATTR_IP_TO]      = { .type = NLA_NESTED },
 532                 [IPSET_ATTR_IP2]        = { .type = NLA_NESTED },
 533                 [IPSET_ATTR_IP2_TO]     = { .type = NLA_NESTED },
 534                 [IPSET_ATTR_PORT]       = { .type = NLA_U16 },
 535                 [IPSET_ATTR_PORT_TO]    = { .type = NLA_U16 },
 536                 [IPSET_ATTR_CIDR]       = { .type = NLA_U8 },
 537                 [IPSET_ATTR_CIDR2]      = { .type = NLA_U8 },
 538                 [IPSET_ATTR_PROTO]      = { .type = NLA_U8 },
 539                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 540                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 541                 [IPSET_ATTR_LINENO]     = { .type = NLA_U32 },
 542                 [IPSET_ATTR_BYTES]      = { .type = NLA_U64 },
 543                 [IPSET_ATTR_PACKETS]    = { .type = NLA_U64 },
 544                 [IPSET_ATTR_COMMENT]    = { .type = NLA_NUL_STRING,
 545                                             .len  = IPSET_MAX_COMMENT_SIZE },
 546                 [IPSET_ATTR_SKBMARK]    = { .type = NLA_U64 },
 547                 [IPSET_ATTR_SKBPRIO]    = { .type = NLA_U32 },
 548                 [IPSET_ATTR_SKBQUEUE]   = { .type = NLA_U16 },
 549         },
 550         .me             = THIS_MODULE,
 551 };
 552
 553 static int __init
 554 hash_ipportnet_init(void)
 555 {
 556         return ip_set_type_register(&hash_ipportnet_type);
 557 }
 558
 559 static void __exit
 560 hash_ipportnet_fini(void)
 561 {
 562         rcu_barrier();
 563         ip_set_type_unregister(&hash_ipportnet_type);
 564 }
 565
 566 module_init(hash_ipportnet_init);
 567 module_exit(hash_ipportnet_fini);