net/netfilter/ipset/ip_set_hash_netportnet.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 #define IPSET_TYPE_REV_MAX      0 /* Comments support added */
  29
  30 MODULE_LICENSE("GPL");
  31 MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
  32 IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
  33 MODULE_ALIAS("ip_set_hash:net,port,net");
  34
  35 /* Type specific function prefix */
  36 #define HTYPE           hash_netportnet
  37 #define IP_SET_HASH_WITH_PROTO
  38 #define IP_SET_HASH_WITH_NETS
  39 #define IPSET_NET_COUNT 2
  40
  41 /* IPv4 variant */
  42
  43 /* Member elements */
  44 struct hash_netportnet4_elem {
  45         union {
  46                 __be32 ip[2];
  47                 __be64 ipcmp;
  48         };
  49         __be16 port;
  50         union {
  51                 u8 cidr[2];
  52                 u16 ccmp;
  53         };
  54         u8 nomatch:1;
  55         u8 proto;
  56 };
  57
  58 /* Common functions */
  59
  60 static inline bool
  61 hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
  62                            const struct hash_netportnet4_elem *ip2,
  63                            u32 *multi)
  64 {
  65         return ip1->ipcmp == ip2->ipcmp &&
  66                ip1->ccmp == ip2->ccmp &&
  67                ip1->port == ip2->port &&
  68                ip1->proto == ip2->proto;
  69 }
  70
  71 static inline int
  72 hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
  73 {
  74         return elem->nomatch ? -ENOTEMPTY : 1;
  75 }
  76
  77 static inline void
  78 hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
  79 {
  80         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
  81 }
  82
  83 static inline void
  84 hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
  85 {
  86         swap(*flags, elem->nomatch);
  87 }
  88
  89 static inline void
  90 hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
  91                                 struct hash_netportnet4_elem *orig)
  92 {
  93         elem->ip[1] = orig->ip[1];
  94 }
  95
  96 static inline void
  97 hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
  98                               u8 cidr, bool inner)
  99 {
 100         if (inner) {
 101                 elem->ip[1] &= ip_set_netmask(cidr);
 102                 elem->cidr[1] = cidr;
 103         } else {
 104                 elem->ip[0] &= ip_set_netmask(cidr);
 105                 elem->cidr[0] = cidr;
 106         }
 107 }
 108
 109 static bool
 110 hash_netportnet4_data_list(struct sk_buff *skb,
 111                           const struct hash_netportnet4_elem *data)
 112 {
 113         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 114
 115         if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
 116             nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
 117             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 118             nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
 119             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
 120             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 121             (flags &&
 122              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 123                 goto nla_put_failure;
 124         return 0;
 125
 126 nla_put_failure:
 127         return 1;
 128 }
 129
 130 static inline void
 131 hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
 132                           const struct hash_netportnet4_elem *d)
 133 {
 134         next->ipcmp = d->ipcmp;
 135         next->port = d->port;
 136 }
 137
 138 #define MTYPE           hash_netportnet4
 139 #define PF              4
 140 #define HOST_MASK       32
 141 #include "ip_set_hash_gen.h"
 142
 143 static int
 144 hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 145                      const struct xt_action_param *par,
 146                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 147 {
 148         const struct hash_netportnet *h = set->data;
 149         ipset_adtfn adtfn = set->variant->adt[adt];
 150         struct hash_netportnet4_elem e = {
 151                 .cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 152                 .cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
 153         };
 154         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 155
 156         if (adt == IPSET_TEST)
 157                 e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
 158
 159         if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 160                                  &e.port, &e.proto))
 161                 return -EINVAL;
 162
 163         ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
 164         ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
 165         e.ip[0] &= ip_set_netmask(e.cidr[0]);
 166         e.ip[1] &= ip_set_netmask(e.cidr[1]);
 167
 168         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 169 }
 170
 171 static int
 172 hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 173                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 174 {
 175         const struct hash_netportnet *h = set->data;
 176         ipset_adtfn adtfn = set->variant->adt[adt];
 177         struct hash_netportnet4_elem e = { .cidr[0] = HOST_MASK,
 178                                            .cidr[1] = HOST_MASK };
 179         struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 180         u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
 181         u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
 182         bool with_ports = false;
 183         u8 cidr, cidr2;
 184         int ret;
 185
 186         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 187                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 188                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 189                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 190                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
 191                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
 192                      !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
 193                 return -IPSET_ERR_PROTOCOL;
 194
 195         if (tb[IPSET_ATTR_LINENO])
 196                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 197
 198         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
 199               ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
 200               ip_set_get_extensions(set, tb, &ext);
 201         if (ret)
 202                 return ret;
 203
 204         if (tb[IPSET_ATTR_CIDR]) {
 205                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 206                 if (!cidr || cidr > HOST_MASK)
 207                         return -IPSET_ERR_INVALID_CIDR;
 208                 e.cidr[0] = cidr;
 209         }
 210
 211         if (tb[IPSET_ATTR_CIDR2]) {
 212                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 213                 if (!cidr || cidr > HOST_MASK)
 214                         return -IPSET_ERR_INVALID_CIDR;
 215                 e.cidr[1] = cidr;
 216         }
 217
 218         if (tb[IPSET_ATTR_PORT])
 219                 e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 220         else
 221                 return -IPSET_ERR_PROTOCOL;
 222
 223         if (tb[IPSET_ATTR_PROTO]) {
 224                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 225                 with_ports = ip_set_proto_with_ports(e.proto);
 226
 227                 if (e.proto == 0)
 228                         return -IPSET_ERR_INVALID_PROTO;
 229         } else
 230                 return -IPSET_ERR_MISSING_PROTO;
 231
 232         if (!(with_ports || e.proto == IPPROTO_ICMP))
 233                 e.port = 0;
 234
 235         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 236                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 237                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 238                         flags |= (IPSET_FLAG_NOMATCH << 16);
 239         }
 240
 241         with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
 242         if (adt == IPSET_TEST ||
 243             !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
 244                 e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
 245                 e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
 246                 ret = adtfn(set, &e, &ext, &ext, flags);
 247                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 248                        ip_set_eexist(ret, flags) ? 0 : ret;
 249         }
 250
 251         ip_to = ip;
 252         if (tb[IPSET_ATTR_IP_TO]) {
 253                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
 254                 if (ret)
 255                         return ret;
 256                 if (ip > ip_to)
 257                         swap(ip, ip_to);
 258                 if (unlikely(ip + UINT_MAX == ip_to))
 259                         return -IPSET_ERR_HASH_RANGE;
 260         }
 261
 262         port_to = port = ntohs(e.port);
 263         if (tb[IPSET_ATTR_PORT_TO]) {
 264                 port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 265                 if (port > port_to)
 266                         swap(port, port_to);
 267         }
 268
 269         ip2_to = ip2_from;
 270         if (tb[IPSET_ATTR_IP2_TO]) {
 271                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
 272                 if (ret)
 273                         return ret;
 274                 if (ip2_from > ip2_to)
 275                         swap(ip2_from, ip2_to);
 276                 if (unlikely(ip2_from + UINT_MAX == ip2_to))
 277                         return -IPSET_ERR_HASH_RANGE;
 278         }
 279
 280         if (retried)
 281                 ip = ntohl(h->next.ip[0]);
 282
 283         while (!after(ip, ip_to)) {
 284                 e.ip[0] = htonl(ip);
 285                 ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
 286                 e.cidr[0] = cidr;
 287                 p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
 288                                                           : port;
 289                 for (; p <= port_to; p++) {
 290                         e.port = htons(p);
 291                         ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
 292                                p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
 293                                                          : ip2_from;
 294                         while (!after(ip2, ip2_to)) {
 295                                 e.ip[1] = htonl(ip2);
 296                                 ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
 297                                                                 &cidr2);
 298                                 e.cidr[1] = cidr2;
 299                                 ret = adtfn(set, &e, &ext, &ext, flags);
 300                                 if (ret && !ip_set_eexist(ret, flags))
 301                                         return ret;
 302                                 else
 303                                         ret = 0;
 304                                 ip2 = ip2_last + 1;
 305                         }
 306                 }
 307                 ip = ip_last + 1;
 308         }
 309         return ret;
 310 }
 311
 312 /* IPv6 variant */
 313
 314 struct hash_netportnet6_elem {
 315         union nf_inet_addr ip[2];
 316         __be16 port;
 317         union {
 318                 u8 cidr[2];
 319                 u16 ccmp;
 320         };
 321         u8 nomatch:1;
 322         u8 proto;
 323 };
 324
 325 /* Common functions */
 326
 327 static inline bool
 328 hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
 329                            const struct hash_netportnet6_elem *ip2,
 330                            u32 *multi)
 331 {
 332         return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
 333                ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
 334                ip1->ccmp == ip2->ccmp &&
 335                ip1->port == ip2->port &&
 336                ip1->proto == ip2->proto;
 337 }
 338
 339 static inline int
 340 hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
 341 {
 342         return elem->nomatch ? -ENOTEMPTY : 1;
 343 }
 344
 345 static inline void
 346 hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
 347 {
 348         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
 349 }
 350
 351 static inline void
 352 hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
 353 {
 354         swap(*flags, elem->nomatch);
 355 }
 356
 357 static inline void
 358 hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
 359                                 struct hash_netportnet6_elem *orig)
 360 {
 361         elem->ip[1] = orig->ip[1];
 362 }
 363
 364 static inline void
 365 hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
 366                               u8 cidr, bool inner)
 367 {
 368         if (inner) {
 369                 ip6_netmask(&elem->ip[1], cidr);
 370                 elem->cidr[1] = cidr;
 371         } else {
 372                 ip6_netmask(&elem->ip[0], cidr);
 373                 elem->cidr[0] = cidr;
 374         }
 375 }
 376
 377 static bool
 378 hash_netportnet6_data_list(struct sk_buff *skb,
 379                           const struct hash_netportnet6_elem *data)
 380 {
 381         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 382
 383         if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
 384             nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
 385             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 386             nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
 387             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
 388             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 389             (flags &&
 390              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 391                 goto nla_put_failure;
 392         return 0;
 393
 394 nla_put_failure:
 395         return 1;
 396 }
 397
 398 static inline void
 399 hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
 400                           const struct hash_netportnet6_elem *d)
 401 {
 402         next->port = d->port;
 403 }
 404
 405 #undef MTYPE
 406 #undef PF
 407 #undef HOST_MASK
 408
 409 #define MTYPE           hash_netportnet6
 410 #define PF              6
 411 #define HOST_MASK       128
 412 #define IP_SET_EMIT_CREATE
 413 #include "ip_set_hash_gen.h"
 414
 415 static int
 416 hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 417                      const struct xt_action_param *par,
 418                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 419 {
 420         const struct hash_netportnet *h = set->data;
 421         ipset_adtfn adtfn = set->variant->adt[adt];
 422         struct hash_netportnet6_elem e = {
 423                 .cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 424                 .cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
 425         };
 426         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 427
 428         if (adt == IPSET_TEST)
 429                 e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
 430
 431         if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 432                                  &e.port, &e.proto))
 433                 return -EINVAL;
 434
 435         ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
 436         ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
 437         ip6_netmask(&e.ip[0], e.cidr[0]);
 438         ip6_netmask(&e.ip[1], e.cidr[1]);
 439
 440         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 441 }
 442
 443 static int
 444 hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 445                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 446 {
 447         const struct hash_netportnet *h = set->data;
 448         ipset_adtfn adtfn = set->variant->adt[adt];
 449         struct hash_netportnet6_elem e = { .cidr[0] = HOST_MASK,
 450                                            .cidr[1] = HOST_MASK };
 451         struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 452         u32 port, port_to;
 453         bool with_ports = false;
 454         int ret;
 455
 456         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 457                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 458                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 459                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 460                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
 461                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
 462                      !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
 463                 return -IPSET_ERR_PROTOCOL;
 464         if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
 465                 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
 466
 467         if (tb[IPSET_ATTR_LINENO])
 468                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 469
 470         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
 471               ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
 472               ip_set_get_extensions(set, tb, &ext);
 473         if (ret)
 474                 return ret;
 475
 476         if (tb[IPSET_ATTR_CIDR])
 477                 e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 478
 479         if (tb[IPSET_ATTR_CIDR2])
 480                 e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 481
 482         if (unlikely(!e.cidr[0] || e.cidr[0] > HOST_MASK || !e.cidr[1] ||
 483                      e.cidr[1] > HOST_MASK))
 484                 return -IPSET_ERR_INVALID_CIDR;
 485
 486         ip6_netmask(&e.ip[0], e.cidr[0]);
 487         ip6_netmask(&e.ip[1], e.cidr[1]);
 488
 489         if (tb[IPSET_ATTR_PORT])
 490                 e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 491         else
 492                 return -IPSET_ERR_PROTOCOL;
 493
 494         if (tb[IPSET_ATTR_PROTO]) {
 495                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 496                 with_ports = ip_set_proto_with_ports(e.proto);
 497
 498                 if (e.proto == 0)
 499                         return -IPSET_ERR_INVALID_PROTO;
 500         } else
 501                 return -IPSET_ERR_MISSING_PROTO;
 502
 503         if (!(with_ports || e.proto == IPPROTO_ICMPV6))
 504                 e.port = 0;
 505
 506         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 507                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 508                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 509                         flags |= (IPSET_FLAG_NOMATCH << 16);
 510         }
 511
 512         if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
 513                 ret = adtfn(set, &e, &ext, &ext, flags);
 514                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 515                        ip_set_eexist(ret, flags) ? 0 : ret;
 516         }
 517
 518         port = ntohs(e.port);
 519         port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 520         if (port > port_to)
 521                 swap(port, port_to);
 522
 523         if (retried)
 524                 port = ntohs(h->next.port);
 525         for (; port <= port_to; port++) {
 526                 e.port = htons(port);
 527                 ret = adtfn(set, &e, &ext, &ext, flags);
 528
 529                 if (ret && !ip_set_eexist(ret, flags))
 530                         return ret;
 531                 else
 532                         ret = 0;
 533         }
 534         return ret;
 535 }
 536
 537 static struct ip_set_type hash_netportnet_type __read_mostly = {
 538         .name           = "hash:net,port,net",
 539         .protocol       = IPSET_PROTOCOL,
 540         .features       = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
 541                           IPSET_TYPE_NOMATCH,
 542         .dimension      = IPSET_DIM_THREE,
 543         .family         = NFPROTO_UNSPEC,
 544         .revision_min   = IPSET_TYPE_REV_MIN,
 545         .revision_max   = IPSET_TYPE_REV_MAX,
 546         .create         = hash_netportnet_create,
 547         .create_policy  = {
 548                 [IPSET_ATTR_HASHSIZE]   = { .type = NLA_U32 },
 549                 [IPSET_ATTR_MAXELEM]    = { .type = NLA_U32 },
 550                 [IPSET_ATTR_PROBES]     = { .type = NLA_U8 },
 551                 [IPSET_ATTR_RESIZE]     = { .type = NLA_U8  },
 552                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 553                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 554         },
 555         .adt_policy     = {
 556                 [IPSET_ATTR_IP]         = { .type = NLA_NESTED },
 557                 [IPSET_ATTR_IP_TO]      = { .type = NLA_NESTED },
 558                 [IPSET_ATTR_IP2]        = { .type = NLA_NESTED },
 559                 [IPSET_ATTR_IP2_TO]     = { .type = NLA_NESTED },
 560                 [IPSET_ATTR_PORT]       = { .type = NLA_U16 },
 561                 [IPSET_ATTR_PORT_TO]    = { .type = NLA_U16 },
 562                 [IPSET_ATTR_CIDR]       = { .type = NLA_U8 },
 563                 [IPSET_ATTR_CIDR2]      = { .type = NLA_U8 },
 564                 [IPSET_ATTR_PROTO]      = { .type = NLA_U8 },
 565                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 566                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 567                 [IPSET_ATTR_LINENO]     = { .type = NLA_U32 },
 568                 [IPSET_ATTR_BYTES]      = { .type = NLA_U64 },
 569                 [IPSET_ATTR_PACKETS]    = { .type = NLA_U64 },
 570                 [IPSET_ATTR_COMMENT]    = { .type = NLA_NUL_STRING },
 571         },
 572         .me             = THIS_MODULE,
 573 };
 574
 575 static int __init
 576 hash_netportnet_init(void)
 577 {
 578         return ip_set_type_register(&hash_netportnet_type);
 579 }
 580
 581 static void __exit
 582 hash_netportnet_fini(void)
 583 {
 584         ip_set_type_unregister(&hash_netportnet_type);
 585 }
 586
 587 module_init(hash_netportnet_init);
 588 module_exit(hash_netportnet_fini);