Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 1 | /* Copyright (C) 2003-2011 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 bitmap:port type */ |
| 9 | |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/ip.h> |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 12 | #include <linux/skbuff.h> |
| 13 | #include <linux/errno.h> |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 14 | #include <linux/netlink.h> |
| 15 | #include <linux/jiffies.h> |
| 16 | #include <linux/timer.h> |
| 17 | #include <net/netlink.h> |
| 18 | |
| 19 | #include <linux/netfilter/ipset/ip_set.h> |
| 20 | #include <linux/netfilter/ipset/ip_set_bitmap.h> |
| 21 | #include <linux/netfilter/ipset/ip_set_getport.h> |
| 22 | #define IP_SET_BITMAP_TIMEOUT |
| 23 | #include <linux/netfilter/ipset/ip_set_timeout.h> |
| 24 | |
| 25 | MODULE_LICENSE("GPL"); |
| 26 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); |
| 27 | MODULE_DESCRIPTION("bitmap:port type of IP sets"); |
| 28 | MODULE_ALIAS("ip_set_bitmap:port"); |
| 29 | |
| 30 | /* Type structure */ |
| 31 | struct bitmap_port { |
| 32 | void *members; /* the set members */ |
| 33 | u16 first_port; /* host byte order, included in range */ |
| 34 | u16 last_port; /* host byte order, included in range */ |
| 35 | size_t memsize; /* members size */ |
| 36 | u32 timeout; /* timeout parameter */ |
| 37 | struct timer_list gc; /* garbage collection */ |
| 38 | }; |
| 39 | |
| 40 | /* Base variant */ |
| 41 | |
| 42 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 43 | bitmap_port_test(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 44 | { |
| 45 | const struct bitmap_port *map = set->data; |
| 46 | u16 id = *(u16 *)value; |
| 47 | |
| 48 | return !!test_bit(id, map->members); |
| 49 | } |
| 50 | |
| 51 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 52 | bitmap_port_add(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 53 | { |
| 54 | struct bitmap_port *map = set->data; |
| 55 | u16 id = *(u16 *)value; |
| 56 | |
| 57 | if (test_and_set_bit(id, map->members)) |
| 58 | return -IPSET_ERR_EXIST; |
| 59 | |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 64 | bitmap_port_del(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 65 | { |
| 66 | struct bitmap_port *map = set->data; |
| 67 | u16 id = *(u16 *)value; |
| 68 | |
| 69 | if (!test_and_clear_bit(id, map->members)) |
| 70 | return -IPSET_ERR_EXIST; |
| 71 | |
| 72 | return 0; |
| 73 | } |
| 74 | |
| 75 | static int |
| 76 | bitmap_port_list(const struct ip_set *set, |
| 77 | struct sk_buff *skb, struct netlink_callback *cb) |
| 78 | { |
| 79 | const struct bitmap_port *map = set->data; |
| 80 | struct nlattr *atd, *nested; |
| 81 | u16 id, first = cb->args[2]; |
| 82 | u16 last = map->last_port - map->first_port; |
| 83 | |
| 84 | atd = ipset_nest_start(skb, IPSET_ATTR_ADT); |
| 85 | if (!atd) |
| 86 | return -EMSGSIZE; |
| 87 | for (; cb->args[2] <= last; cb->args[2]++) { |
| 88 | id = cb->args[2]; |
| 89 | if (!test_bit(id, map->members)) |
| 90 | continue; |
| 91 | nested = ipset_nest_start(skb, IPSET_ATTR_DATA); |
| 92 | if (!nested) { |
| 93 | if (id == first) { |
| 94 | nla_nest_cancel(skb, atd); |
| 95 | return -EMSGSIZE; |
| 96 | } else |
| 97 | goto nla_put_failure; |
| 98 | } |
| 99 | NLA_PUT_NET16(skb, IPSET_ATTR_PORT, |
| 100 | htons(map->first_port + id)); |
| 101 | ipset_nest_end(skb, nested); |
| 102 | } |
| 103 | ipset_nest_end(skb, atd); |
| 104 | /* Set listing finished */ |
| 105 | cb->args[2] = 0; |
| 106 | |
| 107 | return 0; |
| 108 | |
| 109 | nla_put_failure: |
| 110 | nla_nest_cancel(skb, nested); |
| 111 | ipset_nest_end(skb, atd); |
| 112 | if (unlikely(id == first)) { |
| 113 | cb->args[2] = 0; |
| 114 | return -EMSGSIZE; |
| 115 | } |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | /* Timeout variant */ |
| 120 | |
| 121 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 122 | bitmap_port_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 123 | { |
| 124 | const struct bitmap_port *map = set->data; |
| 125 | const unsigned long *members = map->members; |
| 126 | u16 id = *(u16 *)value; |
| 127 | |
| 128 | return ip_set_timeout_test(members[id]); |
| 129 | } |
| 130 | |
| 131 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 132 | bitmap_port_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 133 | { |
| 134 | struct bitmap_port *map = set->data; |
| 135 | unsigned long *members = map->members; |
| 136 | u16 id = *(u16 *)value; |
| 137 | |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 138 | if (ip_set_timeout_test(members[id]) && !(flags & IPSET_FLAG_EXIST)) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 139 | return -IPSET_ERR_EXIST; |
| 140 | |
| 141 | members[id] = ip_set_timeout_set(timeout); |
| 142 | |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | static int |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 147 | bitmap_port_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 148 | { |
| 149 | struct bitmap_port *map = set->data; |
| 150 | unsigned long *members = map->members; |
| 151 | u16 id = *(u16 *)value; |
| 152 | int ret = -IPSET_ERR_EXIST; |
| 153 | |
| 154 | if (ip_set_timeout_test(members[id])) |
| 155 | ret = 0; |
| 156 | |
| 157 | members[id] = IPSET_ELEM_UNSET; |
| 158 | return ret; |
| 159 | } |
| 160 | |
| 161 | static int |
| 162 | bitmap_port_tlist(const struct ip_set *set, |
| 163 | struct sk_buff *skb, struct netlink_callback *cb) |
| 164 | { |
| 165 | const struct bitmap_port *map = set->data; |
| 166 | struct nlattr *adt, *nested; |
| 167 | u16 id, first = cb->args[2]; |
| 168 | u16 last = map->last_port - map->first_port; |
| 169 | const unsigned long *members = map->members; |
| 170 | |
| 171 | adt = ipset_nest_start(skb, IPSET_ATTR_ADT); |
| 172 | if (!adt) |
| 173 | return -EMSGSIZE; |
| 174 | for (; cb->args[2] <= last; cb->args[2]++) { |
| 175 | id = cb->args[2]; |
| 176 | if (!ip_set_timeout_test(members[id])) |
| 177 | continue; |
| 178 | nested = ipset_nest_start(skb, IPSET_ATTR_DATA); |
| 179 | if (!nested) { |
| 180 | if (id == first) { |
| 181 | nla_nest_cancel(skb, adt); |
| 182 | return -EMSGSIZE; |
| 183 | } else |
| 184 | goto nla_put_failure; |
| 185 | } |
| 186 | NLA_PUT_NET16(skb, IPSET_ATTR_PORT, |
| 187 | htons(map->first_port + id)); |
| 188 | NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, |
| 189 | htonl(ip_set_timeout_get(members[id]))); |
| 190 | ipset_nest_end(skb, nested); |
| 191 | } |
| 192 | ipset_nest_end(skb, adt); |
| 193 | |
| 194 | /* Set listing finished */ |
| 195 | cb->args[2] = 0; |
| 196 | |
| 197 | return 0; |
| 198 | |
| 199 | nla_put_failure: |
| 200 | nla_nest_cancel(skb, nested); |
| 201 | ipset_nest_end(skb, adt); |
| 202 | if (unlikely(id == first)) { |
| 203 | cb->args[2] = 0; |
| 204 | return -EMSGSIZE; |
| 205 | } |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | static int |
| 210 | bitmap_port_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 211 | const struct xt_action_param *par, |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 212 | enum ipset_adt adt, const struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 213 | { |
| 214 | struct bitmap_port *map = set->data; |
| 215 | ipset_adtfn adtfn = set->variant->adt[adt]; |
| 216 | __be16 __port; |
| 217 | u16 port = 0; |
| 218 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 219 | if (!ip_set_get_ip_port(skb, opt->family, |
| 220 | opt->flags & IPSET_DIM_ONE_SRC, &__port)) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 221 | return -EINVAL; |
| 222 | |
| 223 | port = ntohs(__port); |
| 224 | |
| 225 | if (port < map->first_port || port > map->last_port) |
| 226 | return -IPSET_ERR_BITMAP_RANGE; |
| 227 | |
| 228 | port -= map->first_port; |
| 229 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 230 | return adtfn(set, &port, opt_timeout(opt, map), opt->cmdflags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | static int |
| 234 | bitmap_port_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 235 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 236 | { |
| 237 | struct bitmap_port *map = set->data; |
| 238 | ipset_adtfn adtfn = set->variant->adt[adt]; |
| 239 | u32 timeout = map->timeout; |
| 240 | u32 port; /* wraparound */ |
| 241 | u16 id, port_to; |
| 242 | int ret = 0; |
| 243 | |
| 244 | if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 245 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
| 246 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT))) |
| 247 | return -IPSET_ERR_PROTOCOL; |
| 248 | |
| 249 | if (tb[IPSET_ATTR_LINENO]) |
| 250 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 251 | |
| 252 | port = ip_set_get_h16(tb[IPSET_ATTR_PORT]); |
| 253 | if (port < map->first_port || port > map->last_port) |
| 254 | return -IPSET_ERR_BITMAP_RANGE; |
| 255 | |
| 256 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 257 | if (!with_timeout(map->timeout)) |
| 258 | return -IPSET_ERR_TIMEOUT; |
| 259 | timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 260 | } |
| 261 | |
| 262 | if (adt == IPSET_TEST) { |
| 263 | id = port - map->first_port; |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 264 | return adtfn(set, &id, timeout, flags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | if (tb[IPSET_ATTR_PORT_TO]) { |
| 268 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 269 | if (port > port_to) { |
| 270 | swap(port, port_to); |
| 271 | if (port < map->first_port) |
| 272 | return -IPSET_ERR_BITMAP_RANGE; |
| 273 | } |
| 274 | } else |
| 275 | port_to = port; |
| 276 | |
| 277 | if (port_to > map->last_port) |
| 278 | return -IPSET_ERR_BITMAP_RANGE; |
| 279 | |
| 280 | for (; port <= port_to; port++) { |
| 281 | id = port - map->first_port; |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 282 | ret = adtfn(set, &id, timeout, flags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 283 | |
| 284 | if (ret && !ip_set_eexist(ret, flags)) |
| 285 | return ret; |
| 286 | else |
| 287 | ret = 0; |
| 288 | } |
| 289 | return ret; |
| 290 | } |
| 291 | |
| 292 | static void |
| 293 | bitmap_port_destroy(struct ip_set *set) |
| 294 | { |
| 295 | struct bitmap_port *map = set->data; |
| 296 | |
| 297 | if (with_timeout(map->timeout)) |
| 298 | del_timer_sync(&map->gc); |
| 299 | |
| 300 | ip_set_free(map->members); |
| 301 | kfree(map); |
| 302 | |
| 303 | set->data = NULL; |
| 304 | } |
| 305 | |
| 306 | static void |
| 307 | bitmap_port_flush(struct ip_set *set) |
| 308 | { |
| 309 | struct bitmap_port *map = set->data; |
| 310 | |
| 311 | memset(map->members, 0, map->memsize); |
| 312 | } |
| 313 | |
| 314 | static int |
| 315 | bitmap_port_head(struct ip_set *set, struct sk_buff *skb) |
| 316 | { |
| 317 | const struct bitmap_port *map = set->data; |
| 318 | struct nlattr *nested; |
| 319 | |
| 320 | nested = ipset_nest_start(skb, IPSET_ATTR_DATA); |
| 321 | if (!nested) |
| 322 | goto nla_put_failure; |
| 323 | NLA_PUT_NET16(skb, IPSET_ATTR_PORT, htons(map->first_port)); |
| 324 | NLA_PUT_NET16(skb, IPSET_ATTR_PORT_TO, htons(map->last_port)); |
Jozsef Kadlecsik | 2f9f28b | 2011-04-04 15:19:25 +0200 | [diff] [blame] | 325 | NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 326 | NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE, |
| 327 | htonl(sizeof(*map) + map->memsize)); |
| 328 | if (with_timeout(map->timeout)) |
| 329 | NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout)); |
| 330 | ipset_nest_end(skb, nested); |
| 331 | |
| 332 | return 0; |
| 333 | nla_put_failure: |
| 334 | return -EMSGSIZE; |
| 335 | } |
| 336 | |
| 337 | static bool |
| 338 | bitmap_port_same_set(const struct ip_set *a, const struct ip_set *b) |
| 339 | { |
| 340 | const struct bitmap_port *x = a->data; |
| 341 | const struct bitmap_port *y = b->data; |
| 342 | |
| 343 | return x->first_port == y->first_port && |
| 344 | x->last_port == y->last_port && |
| 345 | x->timeout == y->timeout; |
| 346 | } |
| 347 | |
| 348 | static const struct ip_set_type_variant bitmap_port = { |
| 349 | .kadt = bitmap_port_kadt, |
| 350 | .uadt = bitmap_port_uadt, |
| 351 | .adt = { |
| 352 | [IPSET_ADD] = bitmap_port_add, |
| 353 | [IPSET_DEL] = bitmap_port_del, |
| 354 | [IPSET_TEST] = bitmap_port_test, |
| 355 | }, |
| 356 | .destroy = bitmap_port_destroy, |
| 357 | .flush = bitmap_port_flush, |
| 358 | .head = bitmap_port_head, |
| 359 | .list = bitmap_port_list, |
| 360 | .same_set = bitmap_port_same_set, |
| 361 | }; |
| 362 | |
| 363 | static const struct ip_set_type_variant bitmap_tport = { |
| 364 | .kadt = bitmap_port_kadt, |
| 365 | .uadt = bitmap_port_uadt, |
| 366 | .adt = { |
| 367 | [IPSET_ADD] = bitmap_port_tadd, |
| 368 | [IPSET_DEL] = bitmap_port_tdel, |
| 369 | [IPSET_TEST] = bitmap_port_ttest, |
| 370 | }, |
| 371 | .destroy = bitmap_port_destroy, |
| 372 | .flush = bitmap_port_flush, |
| 373 | .head = bitmap_port_head, |
| 374 | .list = bitmap_port_tlist, |
| 375 | .same_set = bitmap_port_same_set, |
| 376 | }; |
| 377 | |
| 378 | static void |
| 379 | bitmap_port_gc(unsigned long ul_set) |
| 380 | { |
| 381 | struct ip_set *set = (struct ip_set *) ul_set; |
| 382 | struct bitmap_port *map = set->data; |
| 383 | unsigned long *table = map->members; |
| 384 | u32 id; /* wraparound */ |
| 385 | u16 last = map->last_port - map->first_port; |
| 386 | |
| 387 | /* We run parallel with other readers (test element) |
| 388 | * but adding/deleting new entries is locked out */ |
| 389 | read_lock_bh(&set->lock); |
| 390 | for (id = 0; id <= last; id++) |
| 391 | if (ip_set_timeout_expired(table[id])) |
| 392 | table[id] = IPSET_ELEM_UNSET; |
| 393 | read_unlock_bh(&set->lock); |
| 394 | |
| 395 | map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ; |
| 396 | add_timer(&map->gc); |
| 397 | } |
| 398 | |
| 399 | static void |
| 400 | bitmap_port_gc_init(struct ip_set *set) |
| 401 | { |
| 402 | struct bitmap_port *map = set->data; |
| 403 | |
| 404 | init_timer(&map->gc); |
| 405 | map->gc.data = (unsigned long) set; |
| 406 | map->gc.function = bitmap_port_gc; |
| 407 | map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ; |
| 408 | add_timer(&map->gc); |
| 409 | } |
| 410 | |
| 411 | /* Create bitmap:ip type of sets */ |
| 412 | |
| 413 | static bool |
| 414 | init_map_port(struct ip_set *set, struct bitmap_port *map, |
| 415 | u16 first_port, u16 last_port) |
| 416 | { |
| 417 | map->members = ip_set_alloc(map->memsize); |
| 418 | if (!map->members) |
| 419 | return false; |
| 420 | map->first_port = first_port; |
| 421 | map->last_port = last_port; |
| 422 | map->timeout = IPSET_NO_TIMEOUT; |
| 423 | |
| 424 | set->data = map; |
| 425 | set->family = AF_UNSPEC; |
| 426 | |
| 427 | return true; |
| 428 | } |
| 429 | |
| 430 | static int |
| 431 | bitmap_port_create(struct ip_set *set, struct nlattr *tb[], |
| 432 | u32 flags) |
| 433 | { |
| 434 | struct bitmap_port *map; |
| 435 | u16 first_port, last_port; |
| 436 | |
| 437 | if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 438 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT_TO) || |
| 439 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT))) |
| 440 | return -IPSET_ERR_PROTOCOL; |
| 441 | |
| 442 | first_port = ip_set_get_h16(tb[IPSET_ATTR_PORT]); |
| 443 | last_port = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 444 | if (first_port > last_port) { |
| 445 | u16 tmp = first_port; |
| 446 | |
| 447 | first_port = last_port; |
| 448 | last_port = tmp; |
| 449 | } |
| 450 | |
| 451 | map = kzalloc(sizeof(*map), GFP_KERNEL); |
| 452 | if (!map) |
| 453 | return -ENOMEM; |
| 454 | |
| 455 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 456 | map->memsize = (last_port - first_port + 1) |
| 457 | * sizeof(unsigned long); |
| 458 | |
| 459 | if (!init_map_port(set, map, first_port, last_port)) { |
| 460 | kfree(map); |
| 461 | return -ENOMEM; |
| 462 | } |
| 463 | |
| 464 | map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 465 | set->variant = &bitmap_tport; |
| 466 | |
| 467 | bitmap_port_gc_init(set); |
| 468 | } else { |
| 469 | map->memsize = bitmap_bytes(0, last_port - first_port); |
| 470 | pr_debug("memsize: %zu\n", map->memsize); |
| 471 | if (!init_map_port(set, map, first_port, last_port)) { |
| 472 | kfree(map); |
| 473 | return -ENOMEM; |
| 474 | } |
| 475 | |
| 476 | set->variant = &bitmap_port; |
| 477 | } |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | static struct ip_set_type bitmap_port_type = { |
| 482 | .name = "bitmap:port", |
| 483 | .protocol = IPSET_PROTOCOL, |
| 484 | .features = IPSET_TYPE_PORT, |
| 485 | .dimension = IPSET_DIM_ONE, |
| 486 | .family = AF_UNSPEC, |
Jozsef Kadlecsik | f1e00b3 | 2011-06-16 18:51:41 +0200 | [diff] [blame] | 487 | .revision_min = 0, |
| 488 | .revision_max = 0, |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 489 | .create = bitmap_port_create, |
| 490 | .create_policy = { |
| 491 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 492 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 493 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 494 | }, |
| 495 | .adt_policy = { |
| 496 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 497 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 498 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 499 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
| 500 | }, |
| 501 | .me = THIS_MODULE, |
| 502 | }; |
| 503 | |
| 504 | static int __init |
| 505 | bitmap_port_init(void) |
| 506 | { |
| 507 | return ip_set_type_register(&bitmap_port_type); |
| 508 | } |
| 509 | |
| 510 | static void __exit |
| 511 | bitmap_port_fini(void) |
| 512 | { |
| 513 | ip_set_type_unregister(&bitmap_port_type); |
| 514 | } |
| 515 | |
| 516 | module_init(bitmap_port_init); |
| 517 | module_exit(bitmap_port_fini); |