Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 1 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 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> |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 22 | |
Jozsef Kadlecsik | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame^] | 23 | #define IPSET_TYPE_REV_MIN 0 |
| 24 | #define IPSET_TYPE_REV_MAX 1 /* Counter support added */ |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 25 | |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 26 | MODULE_LICENSE("GPL"); |
| 27 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); |
Jozsef Kadlecsik | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame^] | 28 | IP_SET_MODULE_DESC("bitmap:port", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 29 | MODULE_ALIAS("ip_set_bitmap:port"); |
| 30 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 31 | #define MTYPE bitmap_port |
| 32 | |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 33 | /* Type structure */ |
| 34 | struct bitmap_port { |
| 35 | void *members; /* the set members */ |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 36 | void *extensions; /* data extensions */ |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 37 | u16 first_port; /* host byte order, included in range */ |
| 38 | u16 last_port; /* host byte order, included in range */ |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 39 | u32 elements; /* number of max elements in the set */ |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 40 | size_t memsize; /* members size */ |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 41 | size_t dsize; /* extensions struct size */ |
| 42 | size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */ |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 43 | u32 timeout; /* timeout parameter */ |
| 44 | struct timer_list gc; /* garbage collection */ |
| 45 | }; |
| 46 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 47 | /* ADT structure for generic function args */ |
| 48 | struct bitmap_port_adt_elem { |
| 49 | u16 id; |
| 50 | }; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 51 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 52 | static inline u16 |
| 53 | port_to_id(const struct bitmap_port *m, u16 port) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 54 | { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 55 | return port - m->first_port; |
| 56 | } |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 57 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 58 | /* Common functions */ |
| 59 | |
| 60 | static inline int |
| 61 | bitmap_port_do_test(const struct bitmap_port_adt_elem *e, |
| 62 | const struct bitmap_port *map) |
| 63 | { |
| 64 | return !!test_bit(e->id, map->members); |
| 65 | } |
| 66 | |
| 67 | static inline int |
| 68 | bitmap_port_gc_test(u16 id, const struct bitmap_port *map) |
| 69 | { |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 70 | return !!test_bit(id, map->members); |
| 71 | } |
| 72 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 73 | static inline int |
| 74 | bitmap_port_do_add(const struct bitmap_port_adt_elem *e, |
| 75 | struct bitmap_port *map, u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 76 | { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 77 | return !!test_and_set_bit(e->id, map->members); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 78 | } |
| 79 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 80 | static inline int |
| 81 | bitmap_port_do_del(const struct bitmap_port_adt_elem *e, |
| 82 | struct bitmap_port *map) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 83 | { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 84 | return !test_and_clear_bit(e->id, map->members); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 85 | } |
| 86 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 87 | static inline int |
| 88 | bitmap_port_do_list(struct sk_buff *skb, const struct bitmap_port *map, u32 id) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 89 | { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 90 | return nla_put_net16(skb, IPSET_ATTR_PORT, |
| 91 | htons(map->first_port + id)); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 92 | } |
| 93 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 94 | static inline int |
| 95 | bitmap_port_do_head(struct sk_buff *skb, const struct bitmap_port *map) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 96 | { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 97 | return nla_put_net16(skb, IPSET_ATTR_PORT, htons(map->first_port)) || |
| 98 | nla_put_net16(skb, IPSET_ATTR_PORT_TO, htons(map->last_port)); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | static int |
| 102 | bitmap_port_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 103 | const struct xt_action_param *par, |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 104 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 105 | { |
| 106 | struct bitmap_port *map = set->data; |
| 107 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 108 | struct bitmap_port_adt_elem e = {}; |
| 109 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 110 | __be16 __port; |
| 111 | u16 port = 0; |
| 112 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 113 | if (!ip_set_get_ip_port(skb, opt->family, |
| 114 | opt->flags & IPSET_DIM_ONE_SRC, &__port)) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 115 | return -EINVAL; |
| 116 | |
| 117 | port = ntohs(__port); |
| 118 | |
| 119 | if (port < map->first_port || port > map->last_port) |
| 120 | return -IPSET_ERR_BITMAP_RANGE; |
| 121 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 122 | e.id = port_to_id(map, port); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 123 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 124 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | static int |
| 128 | bitmap_port_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 129 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 130 | { |
| 131 | struct bitmap_port *map = set->data; |
| 132 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 133 | struct bitmap_port_adt_elem e = {}; |
| 134 | struct ip_set_ext ext = IP_SET_INIT_UEXT(map); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 135 | u32 port; /* wraparound */ |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 136 | u16 port_to; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 137 | int ret = 0; |
| 138 | |
| 139 | if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 140 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 141 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
| 142 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) || |
| 143 | !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES))) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 144 | return -IPSET_ERR_PROTOCOL; |
| 145 | |
| 146 | if (tb[IPSET_ATTR_LINENO]) |
| 147 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 148 | |
| 149 | port = ip_set_get_h16(tb[IPSET_ATTR_PORT]); |
| 150 | if (port < map->first_port || port > map->last_port) |
| 151 | return -IPSET_ERR_BITMAP_RANGE; |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 152 | ret = ip_set_get_extensions(set, tb, &ext); |
| 153 | if (ret) |
| 154 | return ret; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 155 | |
| 156 | if (adt == IPSET_TEST) { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 157 | e.id = port_to_id(map, port); |
| 158 | return adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | if (tb[IPSET_ATTR_PORT_TO]) { |
| 162 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 163 | if (port > port_to) { |
| 164 | swap(port, port_to); |
| 165 | if (port < map->first_port) |
| 166 | return -IPSET_ERR_BITMAP_RANGE; |
| 167 | } |
| 168 | } else |
| 169 | port_to = port; |
| 170 | |
| 171 | if (port_to > map->last_port) |
| 172 | return -IPSET_ERR_BITMAP_RANGE; |
| 173 | |
| 174 | for (; port <= port_to; port++) { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 175 | e.id = port_to_id(map, port); |
| 176 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 177 | |
| 178 | if (ret && !ip_set_eexist(ret, flags)) |
| 179 | return ret; |
| 180 | else |
| 181 | ret = 0; |
| 182 | } |
| 183 | return ret; |
| 184 | } |
| 185 | |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 186 | static bool |
| 187 | bitmap_port_same_set(const struct ip_set *a, const struct ip_set *b) |
| 188 | { |
| 189 | const struct bitmap_port *x = a->data; |
| 190 | const struct bitmap_port *y = b->data; |
| 191 | |
| 192 | return x->first_port == y->first_port && |
| 193 | x->last_port == y->last_port && |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 194 | x->timeout == y->timeout && |
| 195 | a->extensions == b->extensions; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 196 | } |
| 197 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 198 | /* Plain variant */ |
| 199 | |
| 200 | struct bitmap_port_elem { |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 201 | }; |
| 202 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 203 | /* Timeout variant */ |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 204 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 205 | struct bitmap_portt_elem { |
| 206 | unsigned long timeout; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 207 | }; |
| 208 | |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 209 | /* Plain variant with counter */ |
| 210 | |
| 211 | struct bitmap_portc_elem { |
| 212 | struct ip_set_counter counter; |
| 213 | }; |
| 214 | |
| 215 | /* Timeout variant with counter */ |
| 216 | |
| 217 | struct bitmap_portct_elem { |
| 218 | unsigned long timeout; |
| 219 | struct ip_set_counter counter; |
| 220 | }; |
| 221 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 222 | #include "ip_set_bitmap_gen.h" |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 223 | |
| 224 | /* Create bitmap:ip type of sets */ |
| 225 | |
| 226 | static bool |
| 227 | init_map_port(struct ip_set *set, struct bitmap_port *map, |
| 228 | u16 first_port, u16 last_port) |
| 229 | { |
| 230 | map->members = ip_set_alloc(map->memsize); |
| 231 | if (!map->members) |
| 232 | return false; |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 233 | if (map->dsize) { |
| 234 | map->extensions = ip_set_alloc(map->dsize * map->elements); |
| 235 | if (!map->extensions) { |
| 236 | kfree(map->members); |
| 237 | return false; |
| 238 | } |
| 239 | } |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 240 | map->first_port = first_port; |
| 241 | map->last_port = last_port; |
| 242 | map->timeout = IPSET_NO_TIMEOUT; |
| 243 | |
| 244 | set->data = map; |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 245 | set->family = NFPROTO_UNSPEC; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 246 | |
| 247 | return true; |
| 248 | } |
| 249 | |
| 250 | static int |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 251 | bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 252 | { |
| 253 | struct bitmap_port *map; |
| 254 | u16 first_port, last_port; |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 255 | u32 cadt_flags = 0; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 256 | |
| 257 | if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 258 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT_TO) || |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 259 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
| 260 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 261 | return -IPSET_ERR_PROTOCOL; |
| 262 | |
| 263 | first_port = ip_set_get_h16(tb[IPSET_ATTR_PORT]); |
| 264 | last_port = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 265 | if (first_port > last_port) { |
| 266 | u16 tmp = first_port; |
| 267 | |
| 268 | first_port = last_port; |
| 269 | last_port = tmp; |
| 270 | } |
| 271 | |
| 272 | map = kzalloc(sizeof(*map), GFP_KERNEL); |
| 273 | if (!map) |
| 274 | return -ENOMEM; |
| 275 | |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 276 | map->elements = last_port - first_port + 1; |
| 277 | map->memsize = map->elements * sizeof(unsigned long); |
| 278 | set->variant = &bitmap_port; |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 279 | if (tb[IPSET_ATTR_CADT_FLAGS]) |
| 280 | cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
| 281 | if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) { |
| 282 | set->extensions |= IPSET_EXT_COUNTER; |
| 283 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 284 | map->dsize = sizeof(struct bitmap_portct_elem); |
| 285 | map->offset[IPSET_OFFSET_TIMEOUT] = |
| 286 | offsetof(struct bitmap_portct_elem, timeout); |
| 287 | map->offset[IPSET_OFFSET_COUNTER] = |
| 288 | offsetof(struct bitmap_portct_elem, counter); |
| 289 | if (!init_map_port(set, map, first_port, last_port)) { |
| 290 | kfree(map); |
| 291 | return -ENOMEM; |
| 292 | } |
| 293 | |
| 294 | map->timeout = |
| 295 | ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 296 | set->extensions |= IPSET_EXT_TIMEOUT; |
| 297 | bitmap_port_gc_init(set, bitmap_port_gc); |
| 298 | } else { |
| 299 | map->dsize = sizeof(struct bitmap_portc_elem); |
| 300 | map->offset[IPSET_OFFSET_COUNTER] = |
| 301 | offsetof(struct bitmap_portc_elem, counter); |
| 302 | if (!init_map_port(set, map, first_port, last_port)) { |
| 303 | kfree(map); |
| 304 | return -ENOMEM; |
| 305 | } |
| 306 | } |
| 307 | } else if (tb[IPSET_ATTR_TIMEOUT]) { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 308 | map->dsize = sizeof(struct bitmap_portt_elem); |
| 309 | map->offset[IPSET_OFFSET_TIMEOUT] = |
| 310 | offsetof(struct bitmap_portt_elem, timeout); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 311 | if (!init_map_port(set, map, first_port, last_port)) { |
| 312 | kfree(map); |
| 313 | return -ENOMEM; |
| 314 | } |
| 315 | |
| 316 | map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 317 | set->extensions |= IPSET_EXT_TIMEOUT; |
| 318 | bitmap_port_gc_init(set, bitmap_port_gc); |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 319 | } else { |
Jozsef Kadlecsik | b0da390 | 2013-04-27 14:37:01 +0200 | [diff] [blame] | 320 | map->dsize = 0; |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 321 | if (!init_map_port(set, map, first_port, last_port)) { |
| 322 | kfree(map); |
| 323 | return -ENOMEM; |
| 324 | } |
| 325 | |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 326 | } |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | static struct ip_set_type bitmap_port_type = { |
| 331 | .name = "bitmap:port", |
| 332 | .protocol = IPSET_PROTOCOL, |
| 333 | .features = IPSET_TYPE_PORT, |
| 334 | .dimension = IPSET_DIM_ONE, |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 335 | .family = NFPROTO_UNSPEC, |
Jozsef Kadlecsik | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame^] | 336 | .revision_min = IPSET_TYPE_REV_MIN, |
| 337 | .revision_max = IPSET_TYPE_REV_MAX, |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 338 | .create = bitmap_port_create, |
| 339 | .create_policy = { |
| 340 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 341 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 342 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 343 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 344 | }, |
| 345 | .adt_policy = { |
| 346 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 347 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 348 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 349 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | f48d19d | 2013-04-08 23:10:22 +0200 | [diff] [blame] | 350 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
| 351 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, |
Jozsef Kadlecsik | 5432619 | 2011-02-01 15:37:04 +0100 | [diff] [blame] | 352 | }, |
| 353 | .me = THIS_MODULE, |
| 354 | }; |
| 355 | |
| 356 | static int __init |
| 357 | bitmap_port_init(void) |
| 358 | { |
| 359 | return ip_set_type_register(&bitmap_port_type); |
| 360 | } |
| 361 | |
| 362 | static void __exit |
| 363 | bitmap_port_fini(void) |
| 364 | { |
| 365 | ip_set_type_unregister(&bitmap_port_type); |
| 366 | } |
| 367 | |
| 368 | module_init(bitmap_port_init); |
| 369 | module_exit(bitmap_port_fini); |