Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 1 | /* Shared library add-on to iptables to add multiple TCP port support. */ |
| 2 | #include <stdio.h> |
| 3 | #include <netdb.h> |
| 4 | #include <string.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <getopt.h> |
| 7 | #include <iptables.h> |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 8 | /* To ensure that iptables compiles with an old kernel */ |
| 9 | #include "../include/linux/netfilter_ipv4/ipt_multiport.h" |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 10 | |
| 11 | /* Function which prints out usage message. */ |
| 12 | static void |
| 13 | help(void) |
| 14 | { |
| 15 | printf( |
| 16 | "multiport v%s options:\n" |
| 17 | " --source-ports port[,port,port...]\n" |
| 18 | " --sports ...\n" |
| 19 | " match source port(s)\n" |
| 20 | " --destination-ports port[,port,port...]\n" |
| 21 | " --dports ...\n" |
| 22 | " match destination port(s)\n" |
| 23 | " --ports port[,port,port]\n" |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 24 | " match both source and destination port(s)\n" |
| 25 | " NOTE: this kernel does not support port ranges in multiport.\n", |
| 26 | IPTABLES_VERSION); |
| 27 | } |
| 28 | |
| 29 | static void |
| 30 | help_v1(void) |
| 31 | { |
| 32 | printf( |
| 33 | "multiport v%s options:\n" |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 34 | " --source-ports [!] port[,port:port,port...]\n" |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 35 | " --sports ...\n" |
| 36 | " match source port(s)\n" |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 37 | " --destination-ports [!] port[,port:port,port...]\n" |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 38 | " --dports ...\n" |
| 39 | " match destination port(s)\n" |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 40 | " --ports [!] port[,port:port,port]\n" |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 41 | " match both source and destination port(s)\n", |
Harald Welte | 80fe35d | 2002-05-29 13:08:15 +0000 | [diff] [blame] | 42 | IPTABLES_VERSION); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | static struct option opts[] = { |
| 46 | { "source-ports", 1, 0, '1' }, |
| 47 | { "sports", 1, 0, '1' }, /* synonym */ |
| 48 | { "destination-ports", 1, 0, '2' }, |
| 49 | { "dports", 1, 0, '2' }, /* synonym */ |
| 50 | { "ports", 1, 0, '3' }, |
| 51 | {0} |
| 52 | }; |
| 53 | |
Patrick McHardyJesper Brouer | c1eae41 | 2006-07-25 01:50:48 +0000 | [diff] [blame] | 54 | static char * |
| 55 | proto_to_name(u_int8_t proto) |
| 56 | { |
| 57 | switch (proto) { |
| 58 | case IPPROTO_TCP: |
| 59 | return "tcp"; |
| 60 | case IPPROTO_UDP: |
| 61 | return "udp"; |
Patrick McHardy | 9561606 | 2007-01-11 09:08:22 +0000 | [diff] [blame] | 62 | case IPPROTO_UDPLITE: |
| 63 | return "udplite"; |
Patrick McHardyJesper Brouer | c1eae41 | 2006-07-25 01:50:48 +0000 | [diff] [blame] | 64 | case IPPROTO_SCTP: |
| 65 | return "sctp"; |
| 66 | case IPPROTO_DCCP: |
| 67 | return "dccp"; |
| 68 | default: |
| 69 | return NULL; |
| 70 | } |
| 71 | } |
| 72 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 73 | static unsigned int |
| 74 | parse_multi_ports(const char *portstring, u_int16_t *ports, const char *proto) |
| 75 | { |
| 76 | char *buffer, *cp, *next; |
| 77 | unsigned int i; |
| 78 | |
| 79 | buffer = strdup(portstring); |
| 80 | if (!buffer) exit_error(OTHER_PROBLEM, "strdup failed"); |
| 81 | |
| 82 | for (cp=buffer, i=0; cp && i<IPT_MULTI_PORTS; cp=next,i++) |
| 83 | { |
| 84 | next=strchr(cp, ','); |
| 85 | if (next) *next++='\0'; |
| 86 | ports[i] = parse_port(cp, proto); |
| 87 | } |
| 88 | if (cp) exit_error(PARAMETER_PROBLEM, "too many ports specified"); |
| 89 | free(buffer); |
| 90 | return i; |
| 91 | } |
| 92 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 93 | static void |
| 94 | parse_multi_ports_v1(const char *portstring, |
| 95 | struct ipt_multiport_v1 *multiinfo, |
| 96 | const char *proto) |
| 97 | { |
| 98 | char *buffer, *cp, *next, *range; |
| 99 | unsigned int i; |
| 100 | u_int16_t m; |
| 101 | |
| 102 | buffer = strdup(portstring); |
| 103 | if (!buffer) exit_error(OTHER_PROBLEM, "strdup failed"); |
| 104 | |
| 105 | for (i=0; i<IPT_MULTI_PORTS; i++) |
| 106 | multiinfo->pflags[i] = 0; |
| 107 | |
| 108 | for (cp=buffer, i=0; cp && i<IPT_MULTI_PORTS; cp=next, i++) { |
| 109 | next=strchr(cp, ','); |
| 110 | if (next) *next++='\0'; |
| 111 | range = strchr(cp, ':'); |
| 112 | if (range) { |
| 113 | if (i == IPT_MULTI_PORTS-1) |
| 114 | exit_error(PARAMETER_PROBLEM, |
| 115 | "too many ports specified"); |
| 116 | *range++ = '\0'; |
| 117 | } |
| 118 | multiinfo->ports[i] = parse_port(cp, proto); |
| 119 | if (range) { |
| 120 | multiinfo->pflags[i] = 1; |
| 121 | multiinfo->ports[++i] = parse_port(range, proto); |
| 122 | if (multiinfo->ports[i-1] >= multiinfo->ports[i]) |
| 123 | exit_error(PARAMETER_PROBLEM, |
| 124 | "invalid portrange specified"); |
| 125 | m <<= 1; |
| 126 | } |
| 127 | } |
| 128 | multiinfo->count = i; |
| 129 | if (cp) exit_error(PARAMETER_PROBLEM, "too many ports specified"); |
| 130 | free(buffer); |
| 131 | } |
| 132 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 133 | /* Initialize the match. */ |
| 134 | static void |
| 135 | init(struct ipt_entry_match *m, unsigned int *nfcache) |
| 136 | { |
| 137 | } |
| 138 | |
| 139 | static const char * |
| 140 | check_proto(const struct ipt_entry *entry) |
| 141 | { |
Patrick McHardy | 2452baf | 2006-04-28 08:10:08 +0000 | [diff] [blame] | 142 | char *proto; |
| 143 | |
Rusty Russell | 225f462 | 2005-01-03 09:51:58 +0000 | [diff] [blame] | 144 | if (entry->ip.invflags & IPT_INV_PROTO) |
| 145 | exit_error(PARAMETER_PROBLEM, |
Patrick McHardy | 9561606 | 2007-01-11 09:08:22 +0000 | [diff] [blame] | 146 | "multiport only works with TCP, UDP, UDPLITE, SCTP and DCCP"); |
Rusty Russell | 225f462 | 2005-01-03 09:51:58 +0000 | [diff] [blame] | 147 | |
Patrick McHardyJesper Brouer | c1eae41 | 2006-07-25 01:50:48 +0000 | [diff] [blame] | 148 | if ((proto = proto_to_name(entry->ip.proto)) != NULL) |
Patrick McHardy | 2452baf | 2006-04-28 08:10:08 +0000 | [diff] [blame] | 149 | return proto; |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 150 | else if (!entry->ip.proto) |
| 151 | exit_error(PARAMETER_PROBLEM, |
Patrick McHardy | 9561606 | 2007-01-11 09:08:22 +0000 | [diff] [blame] | 152 | "multiport needs `-p tcp', `-p udp', `-p udplite', " |
| 153 | "`-p sctp' or `-p dccp'"); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 154 | else |
| 155 | exit_error(PARAMETER_PROBLEM, |
Patrick McHardy | 9561606 | 2007-01-11 09:08:22 +0000 | [diff] [blame] | 156 | "multiport only works with TCP, UDP, UDPLITE, SCTP and DCCP"); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | /* Function which parses command options; returns true if it |
| 160 | ate an option */ |
| 161 | static int |
| 162 | parse(int c, char **argv, int invert, unsigned int *flags, |
| 163 | const struct ipt_entry *entry, |
| 164 | unsigned int *nfcache, |
| 165 | struct ipt_entry_match **match) |
| 166 | { |
| 167 | const char *proto; |
| 168 | struct ipt_multiport *multiinfo |
| 169 | = (struct ipt_multiport *)(*match)->data; |
| 170 | |
| 171 | switch (c) { |
| 172 | case '1': |
Patrick McHardy | d0a2e8a | 2004-09-18 17:43:36 +0000 | [diff] [blame] | 173 | check_inverse(argv[optind-1], &invert, &optind, 0); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 174 | proto = check_proto(entry); |
| 175 | multiinfo->count = parse_multi_ports(argv[optind-1], |
| 176 | multiinfo->ports, proto); |
| 177 | multiinfo->flags = IPT_MULTIPORT_SOURCE; |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 178 | break; |
| 179 | |
| 180 | case '2': |
Patrick McHardy | d0a2e8a | 2004-09-18 17:43:36 +0000 | [diff] [blame] | 181 | check_inverse(argv[optind-1], &invert, &optind, 0); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 182 | proto = check_proto(entry); |
| 183 | multiinfo->count = parse_multi_ports(argv[optind-1], |
| 184 | multiinfo->ports, proto); |
| 185 | multiinfo->flags = IPT_MULTIPORT_DESTINATION; |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 186 | break; |
| 187 | |
| 188 | case '3': |
Patrick McHardy | d0a2e8a | 2004-09-18 17:43:36 +0000 | [diff] [blame] | 189 | check_inverse(argv[optind-1], &invert, &optind, 0); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 190 | proto = check_proto(entry); |
| 191 | multiinfo->count = parse_multi_ports(argv[optind-1], |
| 192 | multiinfo->ports, proto); |
| 193 | multiinfo->flags = IPT_MULTIPORT_EITHER; |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 194 | break; |
| 195 | |
| 196 | default: |
| 197 | return 0; |
| 198 | } |
| 199 | |
Patrick McHardy | d0a2e8a | 2004-09-18 17:43:36 +0000 | [diff] [blame] | 200 | if (invert) |
| 201 | exit_error(PARAMETER_PROBLEM, |
| 202 | "multiport does not support invert"); |
| 203 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 204 | if (*flags) |
| 205 | exit_error(PARAMETER_PROBLEM, |
| 206 | "multiport can only have one option"); |
| 207 | *flags = 1; |
| 208 | return 1; |
| 209 | } |
| 210 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 211 | static int |
| 212 | parse_v1(int c, char **argv, int invert, unsigned int *flags, |
| 213 | const struct ipt_entry *entry, |
| 214 | unsigned int *nfcache, |
| 215 | struct ipt_entry_match **match) |
| 216 | { |
| 217 | const char *proto; |
| 218 | struct ipt_multiport_v1 *multiinfo |
| 219 | = (struct ipt_multiport_v1 *)(*match)->data; |
| 220 | |
| 221 | switch (c) { |
| 222 | case '1': |
| 223 | check_inverse(argv[optind-1], &invert, &optind, 0); |
| 224 | proto = check_proto(entry); |
| 225 | parse_multi_ports_v1(argv[optind-1], multiinfo, proto); |
| 226 | multiinfo->flags = IPT_MULTIPORT_SOURCE; |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 227 | break; |
| 228 | |
| 229 | case '2': |
| 230 | check_inverse(argv[optind-1], &invert, &optind, 0); |
| 231 | proto = check_proto(entry); |
| 232 | parse_multi_ports_v1(argv[optind-1], multiinfo, proto); |
| 233 | multiinfo->flags = IPT_MULTIPORT_DESTINATION; |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 234 | break; |
| 235 | |
| 236 | case '3': |
| 237 | check_inverse(argv[optind-1], &invert, &optind, 0); |
| 238 | proto = check_proto(entry); |
| 239 | parse_multi_ports_v1(argv[optind-1], multiinfo, proto); |
| 240 | multiinfo->flags = IPT_MULTIPORT_EITHER; |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 241 | break; |
| 242 | |
| 243 | default: |
| 244 | return 0; |
| 245 | } |
| 246 | |
| 247 | if (invert) |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 248 | multiinfo->invert = 1; |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 249 | |
| 250 | if (*flags) |
| 251 | exit_error(PARAMETER_PROBLEM, |
| 252 | "multiport can only have one option"); |
| 253 | *flags = 1; |
| 254 | return 1; |
| 255 | } |
| 256 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 257 | /* Final check; must specify something. */ |
| 258 | static void |
| 259 | final_check(unsigned int flags) |
| 260 | { |
| 261 | if (!flags) |
| 262 | exit_error(PARAMETER_PROBLEM, "multiport expection an option"); |
| 263 | } |
| 264 | |
| 265 | static char * |
| 266 | port_to_service(int port, u_int8_t proto) |
| 267 | { |
| 268 | struct servent *service; |
| 269 | |
Patrick McHardyJesper Brouer | c1eae41 | 2006-07-25 01:50:48 +0000 | [diff] [blame] | 270 | if ((service = getservbyport(htons(port), proto_to_name(proto)))) |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 271 | return service->s_name; |
| 272 | |
| 273 | return NULL; |
| 274 | } |
| 275 | |
| 276 | static void |
| 277 | print_port(u_int16_t port, u_int8_t protocol, int numeric) |
| 278 | { |
| 279 | char *service; |
| 280 | |
| 281 | if (numeric || (service = port_to_service(port, protocol)) == NULL) |
| 282 | printf("%u", port); |
| 283 | else |
| 284 | printf("%s", service); |
| 285 | } |
| 286 | |
| 287 | /* Prints out the matchinfo. */ |
| 288 | static void |
| 289 | print(const struct ipt_ip *ip, |
| 290 | const struct ipt_entry_match *match, |
| 291 | int numeric) |
| 292 | { |
| 293 | const struct ipt_multiport *multiinfo |
| 294 | = (const struct ipt_multiport *)match->data; |
| 295 | unsigned int i; |
| 296 | |
| 297 | printf("multiport "); |
| 298 | |
| 299 | switch (multiinfo->flags) { |
| 300 | case IPT_MULTIPORT_SOURCE: |
| 301 | printf("sports "); |
| 302 | break; |
| 303 | |
| 304 | case IPT_MULTIPORT_DESTINATION: |
| 305 | printf("dports "); |
| 306 | break; |
| 307 | |
| 308 | case IPT_MULTIPORT_EITHER: |
| 309 | printf("ports "); |
| 310 | break; |
| 311 | |
| 312 | default: |
| 313 | printf("ERROR "); |
| 314 | break; |
| 315 | } |
| 316 | |
| 317 | for (i=0; i < multiinfo->count; i++) { |
| 318 | printf("%s", i ? "," : ""); |
| 319 | print_port(multiinfo->ports[i], ip->proto, numeric); |
| 320 | } |
| 321 | printf(" "); |
| 322 | } |
| 323 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 324 | static void |
| 325 | print_v1(const struct ipt_ip *ip, |
| 326 | const struct ipt_entry_match *match, |
| 327 | int numeric) |
| 328 | { |
| 329 | const struct ipt_multiport_v1 *multiinfo |
| 330 | = (const struct ipt_multiport_v1 *)match->data; |
| 331 | unsigned int i; |
| 332 | |
| 333 | printf("multiport "); |
| 334 | |
| 335 | switch (multiinfo->flags) { |
| 336 | case IPT_MULTIPORT_SOURCE: |
| 337 | printf("sports "); |
| 338 | break; |
| 339 | |
| 340 | case IPT_MULTIPORT_DESTINATION: |
| 341 | printf("dports "); |
| 342 | break; |
| 343 | |
| 344 | case IPT_MULTIPORT_EITHER: |
| 345 | printf("ports "); |
| 346 | break; |
| 347 | |
| 348 | default: |
| 349 | printf("ERROR "); |
| 350 | break; |
| 351 | } |
| 352 | |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 353 | if (multiinfo->invert) |
| 354 | printf("! "); |
| 355 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 356 | for (i=0; i < multiinfo->count; i++) { |
| 357 | printf("%s", i ? "," : ""); |
| 358 | print_port(multiinfo->ports[i], ip->proto, numeric); |
| 359 | if (multiinfo->pflags[i]) { |
| 360 | printf(":"); |
| 361 | print_port(multiinfo->ports[++i], ip->proto, numeric); |
| 362 | } |
| 363 | } |
| 364 | printf(" "); |
| 365 | } |
| 366 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 367 | /* Saves the union ipt_matchinfo in parsable form to stdout. */ |
| 368 | static void save(const struct ipt_ip *ip, const struct ipt_entry_match *match) |
| 369 | { |
| 370 | const struct ipt_multiport *multiinfo |
| 371 | = (const struct ipt_multiport *)match->data; |
| 372 | unsigned int i; |
| 373 | |
| 374 | switch (multiinfo->flags) { |
| 375 | case IPT_MULTIPORT_SOURCE: |
| 376 | printf("--sports "); |
| 377 | break; |
| 378 | |
| 379 | case IPT_MULTIPORT_DESTINATION: |
| 380 | printf("--dports "); |
| 381 | break; |
| 382 | |
| 383 | case IPT_MULTIPORT_EITHER: |
| 384 | printf("--ports "); |
| 385 | break; |
| 386 | } |
| 387 | |
| 388 | for (i=0; i < multiinfo->count; i++) { |
| 389 | printf("%s", i ? "," : ""); |
Thomas Woerner | 01cbaa6 | 2003-07-14 20:01:29 +0000 | [diff] [blame] | 390 | print_port(multiinfo->ports[i], ip->proto, 1); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 391 | } |
| 392 | printf(" "); |
| 393 | } |
| 394 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 395 | static void save_v1(const struct ipt_ip *ip, |
| 396 | const struct ipt_entry_match *match) |
| 397 | { |
| 398 | const struct ipt_multiport_v1 *multiinfo |
| 399 | = (const struct ipt_multiport_v1 *)match->data; |
| 400 | unsigned int i; |
| 401 | |
| 402 | switch (multiinfo->flags) { |
| 403 | case IPT_MULTIPORT_SOURCE: |
| 404 | printf("--sports "); |
| 405 | break; |
| 406 | |
| 407 | case IPT_MULTIPORT_DESTINATION: |
| 408 | printf("--dports "); |
| 409 | break; |
| 410 | |
| 411 | case IPT_MULTIPORT_EITHER: |
| 412 | printf("--ports "); |
| 413 | break; |
| 414 | } |
| 415 | |
Phil Oester | b2eedcd | 2005-02-02 19:20:15 +0000 | [diff] [blame] | 416 | if (multiinfo->invert) |
| 417 | printf("! "); |
| 418 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 419 | for (i=0; i < multiinfo->count; i++) { |
| 420 | printf("%s", i ? "," : ""); |
| 421 | print_port(multiinfo->ports[i], ip->proto, 1); |
| 422 | if (multiinfo->pflags[i]) { |
| 423 | printf(":"); |
| 424 | print_port(multiinfo->ports[++i], ip->proto, 1); |
| 425 | } |
| 426 | } |
| 427 | printf(" "); |
| 428 | } |
| 429 | |
Pablo Neira | 8caee8b | 2004-12-28 13:11:59 +0000 | [diff] [blame] | 430 | static struct iptables_match multiport = { |
| 431 | .next = NULL, |
| 432 | .name = "multiport", |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 433 | .revision = 0, |
Pablo Neira | 8caee8b | 2004-12-28 13:11:59 +0000 | [diff] [blame] | 434 | .version = IPTABLES_VERSION, |
| 435 | .size = IPT_ALIGN(sizeof(struct ipt_multiport)), |
| 436 | .userspacesize = IPT_ALIGN(sizeof(struct ipt_multiport)), |
| 437 | .help = &help, |
| 438 | .init = &init, |
| 439 | .parse = &parse, |
| 440 | .final_check = &final_check, |
| 441 | .print = &print, |
| 442 | .save = &save, |
| 443 | .extra_opts = opts |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 444 | }; |
| 445 | |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 446 | static struct iptables_match multiport_v1 = { |
| 447 | .next = NULL, |
| 448 | .name = "multiport", |
| 449 | .version = IPTABLES_VERSION, |
| 450 | .revision = 1, |
| 451 | .size = IPT_ALIGN(sizeof(struct ipt_multiport_v1)), |
| 452 | .userspacesize = IPT_ALIGN(sizeof(struct ipt_multiport_v1)), |
| 453 | .help = &help_v1, |
| 454 | .init = &init, |
| 455 | .parse = &parse_v1, |
| 456 | .final_check = &final_check, |
| 457 | .print = &print_v1, |
| 458 | .save = &save_v1, |
| 459 | .extra_opts = opts |
| 460 | }; |
| 461 | |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 462 | void |
| 463 | _init(void) |
| 464 | { |
| 465 | register_match(&multiport); |
Pablo Neira | 5df9547 | 2005-01-03 09:37:07 +0000 | [diff] [blame] | 466 | register_match(&multiport_v1); |
Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame] | 467 | } |