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 /*                              0    Comments support added */
  29 /*                              1    Forceadd support added */
  30 #define IPSET_TYPE_REV_MAX      2 /* skbinfo support added */
  31
  32 MODULE_LICENSE("GPL");
  33 MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
  34 IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
  35 MODULE_ALIAS("ip_set_hash:net,port,net");
  36
  37 /* Type specific function prefix */
  38 #define HTYPE           hash_netportnet
  39 #define IP_SET_HASH_WITH_PROTO
  40 #define IP_SET_HASH_WITH_NETS
  41 #define IPSET_NET_COUNT 2
  42
  43 /* IPv4 variant */
  44
  45 /* Member elements */
  46 struct hash_netportnet4_elem {
  47         union {
  48                 __be32 ip[2];
  49                 __be64 ipcmp;
  50         };
  51         __be16 port;
  52         union {
  53                 u8 cidr[2];
  54                 u16 ccmp;
  55         };
  56         u8 nomatch:1;
  57         u8 proto;
  58 };
  59
  60 /* Common functions */
  61
  62 static inline bool
  63 hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
  64                            const struct hash_netportnet4_elem *ip2,
  65                            u32 *multi)
  66 {
  67         return ip1->ipcmp == ip2->ipcmp &&
  68                ip1->ccmp == ip2->ccmp &&
  69                ip1->port == ip2->port &&
  70                ip1->proto == ip2->proto;
  71 }
  72
  73 static inline int
  74 hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
  75 {
  76         return elem->nomatch ? -ENOTEMPTY : 1;
  77 }
  78
  79 static inline void
  80 hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
  81 {
  82         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
  83 }
  84
  85 static inline void
  86 hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
  87 {
  88         swap(*flags, elem->nomatch);
  89 }
  90
  91 static inline void
  92 hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
  93                                 struct hash_netportnet4_elem *orig)
  94 {
  95         elem->ip[1] = orig->ip[1];
  96 }
  97
  98 static inline void
  99 hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
 100                               u8 cidr, bool inner)
 101 {
 102         if (inner) {
 103                 elem->ip[1] &= ip_set_netmask(cidr);
 104                 elem->cidr[1] = cidr;
 105         } else {
 106                 elem->ip[0] &= ip_set_netmask(cidr);
 107                 elem->cidr[0] = cidr;
 108         }
 109 }
 110
 111 static bool
 112 hash_netportnet4_data_list(struct sk_buff *skb,
 113                           const struct hash_netportnet4_elem *data)
 114 {
 115         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 116
 117         if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
 118             nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
 119             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 120             nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
 121             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
 122             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 123             (flags &&
 124              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 125                 goto nla_put_failure;
 126         return 0;
 127
 128 nla_put_failure:
 129         return 1;
 130 }
 131
 132 static inline void
 133 hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
 134                           const struct hash_netportnet4_elem *d)
 135 {
 136         next->ipcmp = d->ipcmp;
 137         next->port = d->port;
 138 }
 139
 140 #define MTYPE           hash_netportnet4
 141 #define PF              4
 142 #define HOST_MASK       32
 143 #include "ip_set_hash_gen.h"
 144
 145 static int
 146 hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 147                      const struct xt_action_param *par,
 148                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 149 {
 150         const struct hash_netportnet *h = set->data;
 151         ipset_adtfn adtfn = set->variant->adt[adt];
 152         struct hash_netportnet4_elem e = { };
 153         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 154
 155         e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
 156         e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 157         if (adt == IPSET_TEST)
 158                 e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
 159
 160         if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 161                                  &e.port, &e.proto))
 162                 return -EINVAL;
 163
 164         ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
 165         ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
 166         e.ip[0] &= ip_set_netmask(e.cidr[0]);
 167         e.ip[1] &= ip_set_netmask(e.cidr[1]);
 168
 169         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 170 }
 171
 172 static int
 173 hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 174                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 175 {
 176         const struct hash_netportnet *h = set->data;
 177         ipset_adtfn adtfn = set->variant->adt[adt];
 178         struct hash_netportnet4_elem e = { };
 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         e.cidr[0] = e.cidr[1] = HOST_MASK;
 187         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 188                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 189                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 190                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 191                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
 192                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
 193                      !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
 194                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
 195                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
 196                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
 197                 return -IPSET_ERR_PROTOCOL;
 198
 199         if (tb[IPSET_ATTR_LINENO])
 200                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 201
 202         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
 203               ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
 204               ip_set_get_extensions(set, tb, &ext);
 205         if (ret)
 206                 return ret;
 207
 208         if (tb[IPSET_ATTR_CIDR]) {
 209                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 210                 if (!cidr || cidr > HOST_MASK)
 211                         return -IPSET_ERR_INVALID_CIDR;
 212                 e.cidr[0] = cidr;
 213         }
 214
 215         if (tb[IPSET_ATTR_CIDR2]) {
 216                 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 217                 if (!cidr || cidr > HOST_MASK)
 218                         return -IPSET_ERR_INVALID_CIDR;
 219                 e.cidr[1] = cidr;
 220         }
 221
 222         if (tb[IPSET_ATTR_PORT])
 223                 e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 224         else
 225                 return -IPSET_ERR_PROTOCOL;
 226
 227         if (tb[IPSET_ATTR_PROTO]) {
 228                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 229                 with_ports = ip_set_proto_with_ports(e.proto);
 230
 231                 if (e.proto == 0)
 232                         return -IPSET_ERR_INVALID_PROTO;
 233         } else
 234                 return -IPSET_ERR_MISSING_PROTO;
 235
 236         if (!(with_ports || e.proto == IPPROTO_ICMP))
 237                 e.port = 0;
 238
 239         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 240                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 241                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 242                         flags |= (IPSET_FLAG_NOMATCH << 16);
 243         }
 244
 245         with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
 246         if (adt == IPSET_TEST ||
 247             !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
 248                 e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
 249                 e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
 250                 ret = adtfn(set, &e, &ext, &ext, flags);
 251                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 252                        ip_set_eexist(ret, flags) ? 0 : ret;
 253         }
 254
 255         ip_to = ip;
 256         if (tb[IPSET_ATTR_IP_TO]) {
 257                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
 258                 if (ret)
 259                         return ret;
 260                 if (ip > ip_to)
 261                         swap(ip, ip_to);
 262                 if (unlikely(ip + UINT_MAX == ip_to))
 263                         return -IPSET_ERR_HASH_RANGE;
 264         } else
 265                 ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
 266
 267         port_to = port = ntohs(e.port);
 268         if (tb[IPSET_ATTR_PORT_TO]) {
 269                 port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 270                 if (port > port_to)
 271                         swap(port, port_to);
 272         }
 273
 274         ip2_to = ip2_from;
 275         if (tb[IPSET_ATTR_IP2_TO]) {
 276                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
 277                 if (ret)
 278                         return ret;
 279                 if (ip2_from > ip2_to)
 280                         swap(ip2_from, ip2_to);
 281                 if (unlikely(ip2_from + UINT_MAX == ip2_to))
 282                         return -IPSET_ERR_HASH_RANGE;
 283         } else
 284                 ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
 285
 286         if (retried)
 287                 ip = ntohl(h->next.ip[0]);
 288
 289         while (!after(ip, ip_to)) {
 290                 e.ip[0] = htonl(ip);
 291                 ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
 292                 e.cidr[0] = cidr;
 293                 p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
 294                                                           : port;
 295                 for (; p <= port_to; p++) {
 296                         e.port = htons(p);
 297                         ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
 298                                p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
 299                                                          : ip2_from;
 300                         while (!after(ip2, ip2_to)) {
 301                                 e.ip[1] = htonl(ip2);
 302                                 ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
 303                                                                 &cidr2);
 304                                 e.cidr[1] = cidr2;
 305                                 ret = adtfn(set, &e, &ext, &ext, flags);
 306                                 if (ret && !ip_set_eexist(ret, flags))
 307                                         return ret;
 308                                 else
 309                                         ret = 0;
 310                                 ip2 = ip2_last + 1;
 311                         }
 312                 }
 313                 ip = ip_last + 1;
 314         }
 315         return ret;
 316 }
 317
 318 /* IPv6 variant */
 319
 320 struct hash_netportnet6_elem {
 321         union nf_inet_addr ip[2];
 322         __be16 port;
 323         union {
 324                 u8 cidr[2];
 325                 u16 ccmp;
 326         };
 327         u8 nomatch:1;
 328         u8 proto;
 329 };
 330
 331 /* Common functions */
 332
 333 static inline bool
 334 hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
 335                            const struct hash_netportnet6_elem *ip2,
 336                            u32 *multi)
 337 {
 338         return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
 339                ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
 340                ip1->ccmp == ip2->ccmp &&
 341                ip1->port == ip2->port &&
 342                ip1->proto == ip2->proto;
 343 }
 344
 345 static inline int
 346 hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
 347 {
 348         return elem->nomatch ? -ENOTEMPTY : 1;
 349 }
 350
 351 static inline void
 352 hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
 353 {
 354         elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
 355 }
 356
 357 static inline void
 358 hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
 359 {
 360         swap(*flags, elem->nomatch);
 361 }
 362
 363 static inline void
 364 hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
 365                                 struct hash_netportnet6_elem *orig)
 366 {
 367         elem->ip[1] = orig->ip[1];
 368 }
 369
 370 static inline void
 371 hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
 372                               u8 cidr, bool inner)
 373 {
 374         if (inner) {
 375                 ip6_netmask(&elem->ip[1], cidr);
 376                 elem->cidr[1] = cidr;
 377         } else {
 378                 ip6_netmask(&elem->ip[0], cidr);
 379                 elem->cidr[0] = cidr;
 380         }
 381 }
 382
 383 static bool
 384 hash_netportnet6_data_list(struct sk_buff *skb,
 385                           const struct hash_netportnet6_elem *data)
 386 {
 387         u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
 388
 389         if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
 390             nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
 391             nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
 392             nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
 393             nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
 394             nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
 395             (flags &&
 396              nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
 397                 goto nla_put_failure;
 398         return 0;
 399
 400 nla_put_failure:
 401         return 1;
 402 }
 403
 404 static inline void
 405 hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
 406                           const struct hash_netportnet6_elem *d)
 407 {
 408         next->port = d->port;
 409 }
 410
 411 #undef MTYPE
 412 #undef PF
 413 #undef HOST_MASK
 414
 415 #define MTYPE           hash_netportnet6
 416 #define PF              6
 417 #define HOST_MASK       128
 418 #define IP_SET_EMIT_CREATE
 419 #include "ip_set_hash_gen.h"
 420
 421 static int
 422 hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 423                      const struct xt_action_param *par,
 424                      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 425 {
 426         const struct hash_netportnet *h = set->data;
 427         ipset_adtfn adtfn = set->variant->adt[adt];
 428         struct hash_netportnet6_elem e = { };
 429         struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 430
 431         e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
 432         e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 433         if (adt == IPSET_TEST)
 434                 e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
 435
 436         if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 437                                  &e.port, &e.proto))
 438                 return -EINVAL;
 439
 440         ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
 441         ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
 442         ip6_netmask(&e.ip[0], e.cidr[0]);
 443         ip6_netmask(&e.ip[1], e.cidr[1]);
 444
 445         return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
 446 }
 447
 448 static int
 449 hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 450                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 451 {
 452         const struct hash_netportnet *h = set->data;
 453         ipset_adtfn adtfn = set->variant->adt[adt];
 454         struct hash_netportnet6_elem e = { };
 455         struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 456         u32 port, port_to;
 457         bool with_ports = false;
 458         int ret;
 459
 460         e.cidr[0] = e.cidr[1] = HOST_MASK;
 461         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 462                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 463                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
 464                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 465                      !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
 466                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
 467                      !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
 468                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
 469                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
 470                      !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
 471                 return -IPSET_ERR_PROTOCOL;
 472         if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
 473                 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
 474
 475         if (tb[IPSET_ATTR_LINENO])
 476                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
 477
 478         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
 479               ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
 480               ip_set_get_extensions(set, tb, &ext);
 481         if (ret)
 482                 return ret;
 483
 484         if (tb[IPSET_ATTR_CIDR])
 485                 e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 486
 487         if (tb[IPSET_ATTR_CIDR2])
 488                 e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
 489
 490         if (unlikely(!e.cidr[0] || e.cidr[0] > HOST_MASK || !e.cidr[1] ||
 491                      e.cidr[1] > HOST_MASK))
 492                 return -IPSET_ERR_INVALID_CIDR;
 493
 494         ip6_netmask(&e.ip[0], e.cidr[0]);
 495         ip6_netmask(&e.ip[1], e.cidr[1]);
 496
 497         if (tb[IPSET_ATTR_PORT])
 498                 e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
 499         else
 500                 return -IPSET_ERR_PROTOCOL;
 501
 502         if (tb[IPSET_ATTR_PROTO]) {
 503                 e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
 504                 with_ports = ip_set_proto_with_ports(e.proto);
 505
 506                 if (e.proto == 0)
 507                         return -IPSET_ERR_INVALID_PROTO;
 508         } else
 509                 return -IPSET_ERR_MISSING_PROTO;
 510
 511         if (!(with_ports || e.proto == IPPROTO_ICMPV6))
 512                 e.port = 0;
 513
 514         if (tb[IPSET_ATTR_CADT_FLAGS]) {
 515                 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
 516                 if (cadt_flags & IPSET_FLAG_NOMATCH)
 517                         flags |= (IPSET_FLAG_NOMATCH << 16);
 518         }
 519
 520         if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
 521                 ret = adtfn(set, &e, &ext, &ext, flags);
 522                 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
 523                        ip_set_eexist(ret, flags) ? 0 : ret;
 524         }
 525
 526         port = ntohs(e.port);
 527         port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
 528         if (port > port_to)
 529                 swap(port, port_to);
 530
 531         if (retried)
 532                 port = ntohs(h->next.port);
 533         for (; port <= port_to; port++) {
 534                 e.port = htons(port);
 535                 ret = adtfn(set, &e, &ext, &ext, flags);
 536
 537                 if (ret && !ip_set_eexist(ret, flags))
 538                         return ret;
 539                 else
 540                         ret = 0;
 541         }
 542         return ret;
 543 }
 544
 545 static struct ip_set_type hash_netportnet_type __read_mostly = {
 546         .name           = "hash:net,port,net",
 547         .protocol       = IPSET_PROTOCOL,
 548         .features       = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
 549                           IPSET_TYPE_NOMATCH,
 550         .dimension      = IPSET_DIM_THREE,
 551         .family         = NFPROTO_UNSPEC,
 552         .revision_min   = IPSET_TYPE_REV_MIN,
 553         .revision_max   = IPSET_TYPE_REV_MAX,
 554         .create         = hash_netportnet_create,
 555         .create_policy  = {
 556                 [IPSET_ATTR_HASHSIZE]   = { .type = NLA_U32 },
 557                 [IPSET_ATTR_MAXELEM]    = { .type = NLA_U32 },
 558                 [IPSET_ATTR_PROBES]     = { .type = NLA_U8 },
 559                 [IPSET_ATTR_RESIZE]     = { .type = NLA_U8  },
 560                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 561                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 562         },
 563         .adt_policy     = {
 564                 [IPSET_ATTR_IP]         = { .type = NLA_NESTED },
 565                 [IPSET_ATTR_IP_TO]      = { .type = NLA_NESTED },
 566                 [IPSET_ATTR_IP2]        = { .type = NLA_NESTED },
 567                 [IPSET_ATTR_IP2_TO]     = { .type = NLA_NESTED },
 568                 [IPSET_ATTR_PORT]       = { .type = NLA_U16 },
 569                 [IPSET_ATTR_PORT_TO]    = { .type = NLA_U16 },
 570                 [IPSET_ATTR_CIDR]       = { .type = NLA_U8 },
 571                 [IPSET_ATTR_CIDR2]      = { .type = NLA_U8 },
 572                 [IPSET_ATTR_PROTO]      = { .type = NLA_U8 },
 573                 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
 574                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
 575                 [IPSET_ATTR_LINENO]     = { .type = NLA_U32 },
 576                 [IPSET_ATTR_BYTES]      = { .type = NLA_U64 },
 577                 [IPSET_ATTR_PACKETS]    = { .type = NLA_U64 },
 578                 [IPSET_ATTR_COMMENT]    = { .type = NLA_NUL_STRING },
 579                 [IPSET_ATTR_SKBMARK]    = { .type = NLA_U64 },
 580                 [IPSET_ATTR_SKBPRIO]    = { .type = NLA_U32 },
 581                 [IPSET_ATTR_SKBQUEUE]   = { .type = NLA_U16 },
 582         },
 583         .me             = THIS_MODULE,
 584 };
 585
 586 static int __init
 587 hash_netportnet_init(void)
 588 {
 589         return ip_set_type_register(&hash_netportnet_type);
 590 }
 591
 592 static void __exit
 593 hash_netportnet_fini(void)
 594 {
 595         ip_set_type_unregister(&hash_netportnet_type);
 596 }
 597
 598 module_init(hash_netportnet_init);
 599 module_exit(hash_netportnet_fini);