Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * NetLabel Management Support |
| 3 | * |
| 4 | * This file defines the management functions for the NetLabel system. The |
| 5 | * NetLabel system manages static and dynamic label mappings for network |
| 6 | * protocols such as CIPSO and RIPSO. |
| 7 | * |
| 8 | * Author: Paul Moore <paul.moore@hp.com> |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | /* |
| 13 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006 |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 23 | * the GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
| 26 | * along with this program; if not, write to the Free Software |
| 27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 28 | * |
| 29 | */ |
| 30 | |
| 31 | #include <linux/types.h> |
| 32 | #include <linux/socket.h> |
| 33 | #include <linux/string.h> |
| 34 | #include <linux/skbuff.h> |
| 35 | #include <net/sock.h> |
| 36 | #include <net/netlink.h> |
| 37 | #include <net/genetlink.h> |
| 38 | #include <net/netlabel.h> |
| 39 | #include <net/cipso_ipv4.h> |
| 40 | |
| 41 | #include "netlabel_domainhash.h" |
| 42 | #include "netlabel_user.h" |
| 43 | #include "netlabel_mgmt.h" |
| 44 | |
| 45 | /* NetLabel Generic NETLINK CIPSOv4 family */ |
| 46 | static struct genl_family netlbl_mgmt_gnl_family = { |
| 47 | .id = GENL_ID_GENERATE, |
| 48 | .hdrsize = 0, |
| 49 | .name = NETLBL_NLTYPE_MGMT_NAME, |
| 50 | .version = NETLBL_PROTO_VERSION, |
| 51 | .maxattr = 0, |
| 52 | }; |
| 53 | |
| 54 | |
| 55 | /* |
| 56 | * NetLabel Command Handlers |
| 57 | */ |
| 58 | |
| 59 | /** |
| 60 | * netlbl_mgmt_add - Handle an ADD message |
| 61 | * @skb: the NETLINK buffer |
| 62 | * @info: the Generic NETLINK info block |
| 63 | * |
| 64 | * Description: |
| 65 | * Process a user generated ADD message and add the domains from the message |
| 66 | * to the hash table. See netlabel.h for a description of the message format. |
| 67 | * Returns zero on success, negative values on failure. |
| 68 | * |
| 69 | */ |
| 70 | static int netlbl_mgmt_add(struct sk_buff *skb, struct genl_info *info) |
| 71 | { |
| 72 | int ret_val = -EINVAL; |
| 73 | struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); |
| 74 | int msg_len = netlbl_netlink_payload_len(skb); |
| 75 | u32 count; |
| 76 | struct netlbl_dom_map *entry = NULL; |
| 77 | u32 iter; |
| 78 | u32 tmp_val; |
| 79 | int tmp_size; |
| 80 | |
| 81 | ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); |
| 82 | if (ret_val != 0) |
| 83 | goto add_failure; |
| 84 | |
| 85 | if (msg_len < NETLBL_LEN_U32) |
| 86 | goto add_failure; |
| 87 | count = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 88 | |
| 89 | for (iter = 0; iter < count && msg_len > 0; iter++, entry = NULL) { |
| 90 | if (msg_len <= 0) { |
| 91 | ret_val = -EINVAL; |
| 92 | goto add_failure; |
| 93 | } |
| 94 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
| 95 | if (entry == NULL) { |
| 96 | ret_val = -ENOMEM; |
| 97 | goto add_failure; |
| 98 | } |
| 99 | tmp_size = nla_len(msg_ptr); |
| 100 | if (tmp_size <= 0 || tmp_size > msg_len) { |
| 101 | ret_val = -EINVAL; |
| 102 | goto add_failure; |
| 103 | } |
| 104 | entry->domain = kmalloc(tmp_size, GFP_KERNEL); |
| 105 | if (entry->domain == NULL) { |
| 106 | ret_val = -ENOMEM; |
| 107 | goto add_failure; |
| 108 | } |
| 109 | nla_strlcpy(entry->domain, msg_ptr, tmp_size); |
| 110 | entry->domain[tmp_size - 1] = '\0'; |
| 111 | msg_ptr = nla_next(msg_ptr, &msg_len); |
| 112 | |
| 113 | if (msg_len < NETLBL_LEN_U32) { |
| 114 | ret_val = -EINVAL; |
| 115 | goto add_failure; |
| 116 | } |
| 117 | tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 118 | entry->type = tmp_val; |
| 119 | switch (tmp_val) { |
| 120 | case NETLBL_NLTYPE_UNLABELED: |
| 121 | ret_val = netlbl_domhsh_add(entry); |
| 122 | break; |
| 123 | case NETLBL_NLTYPE_CIPSOV4: |
| 124 | if (msg_len < NETLBL_LEN_U32) { |
| 125 | ret_val = -EINVAL; |
| 126 | goto add_failure; |
| 127 | } |
| 128 | tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 129 | /* We should be holding a rcu_read_lock() here |
| 130 | * while we hold the result but since the entry |
| 131 | * will always be deleted when the CIPSO DOI |
| 132 | * is deleted we aren't going to keep the lock. */ |
| 133 | rcu_read_lock(); |
| 134 | entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); |
| 135 | if (entry->type_def.cipsov4 == NULL) { |
| 136 | rcu_read_unlock(); |
| 137 | ret_val = -EINVAL; |
| 138 | goto add_failure; |
| 139 | } |
| 140 | ret_val = netlbl_domhsh_add(entry); |
| 141 | rcu_read_unlock(); |
| 142 | break; |
| 143 | default: |
| 144 | ret_val = -EINVAL; |
| 145 | } |
| 146 | if (ret_val != 0) |
| 147 | goto add_failure; |
| 148 | } |
| 149 | |
| 150 | netlbl_netlink_send_ack(info, |
| 151 | netlbl_mgmt_gnl_family.id, |
| 152 | NLBL_MGMT_C_ACK, |
| 153 | NETLBL_E_OK); |
| 154 | return 0; |
| 155 | |
| 156 | add_failure: |
| 157 | if (entry) |
| 158 | kfree(entry->domain); |
| 159 | kfree(entry); |
| 160 | netlbl_netlink_send_ack(info, |
| 161 | netlbl_mgmt_gnl_family.id, |
| 162 | NLBL_MGMT_C_ACK, |
| 163 | -ret_val); |
| 164 | return ret_val; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * netlbl_mgmt_remove - Handle a REMOVE message |
| 169 | * @skb: the NETLINK buffer |
| 170 | * @info: the Generic NETLINK info block |
| 171 | * |
| 172 | * Description: |
| 173 | * Process a user generated REMOVE message and remove the specified domain |
| 174 | * mappings. Returns zero on success, negative values on failure. |
| 175 | * |
| 176 | */ |
| 177 | static int netlbl_mgmt_remove(struct sk_buff *skb, struct genl_info *info) |
| 178 | { |
| 179 | int ret_val = -EINVAL; |
| 180 | struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); |
| 181 | int msg_len = netlbl_netlink_payload_len(skb); |
| 182 | u32 count; |
| 183 | u32 iter; |
| 184 | int tmp_size; |
| 185 | unsigned char *domain; |
| 186 | |
| 187 | ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); |
| 188 | if (ret_val != 0) |
| 189 | goto remove_return; |
| 190 | |
| 191 | if (msg_len < NETLBL_LEN_U32) |
| 192 | goto remove_return; |
| 193 | count = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 194 | |
| 195 | for (iter = 0; iter < count && msg_len > 0; iter++) { |
| 196 | if (msg_len <= 0) { |
| 197 | ret_val = -EINVAL; |
| 198 | goto remove_return; |
| 199 | } |
| 200 | tmp_size = nla_len(msg_ptr); |
| 201 | domain = nla_data(msg_ptr); |
| 202 | if (tmp_size <= 0 || tmp_size > msg_len || |
| 203 | domain[tmp_size - 1] != '\0') { |
| 204 | ret_val = -EINVAL; |
| 205 | goto remove_return; |
| 206 | } |
| 207 | ret_val = netlbl_domhsh_remove(domain); |
| 208 | if (ret_val != 0) |
| 209 | goto remove_return; |
| 210 | msg_ptr = nla_next(msg_ptr, &msg_len); |
| 211 | } |
| 212 | |
| 213 | ret_val = 0; |
| 214 | |
| 215 | remove_return: |
| 216 | netlbl_netlink_send_ack(info, |
| 217 | netlbl_mgmt_gnl_family.id, |
| 218 | NLBL_MGMT_C_ACK, |
| 219 | -ret_val); |
| 220 | return ret_val; |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * netlbl_mgmt_list - Handle a LIST message |
| 225 | * @skb: the NETLINK buffer |
| 226 | * @info: the Generic NETLINK info block |
| 227 | * |
| 228 | * Description: |
| 229 | * Process a user generated LIST message and dumps the domain hash table in a |
| 230 | * form suitable for use in a kernel generated LIST message. Returns zero on |
| 231 | * success, negative values on failure. |
| 232 | * |
| 233 | */ |
| 234 | static int netlbl_mgmt_list(struct sk_buff *skb, struct genl_info *info) |
| 235 | { |
| 236 | int ret_val = -ENOMEM; |
| 237 | struct sk_buff *ans_skb; |
| 238 | |
| 239 | ans_skb = netlbl_domhsh_dump(NLMSG_SPACE(GENL_HDRLEN)); |
| 240 | if (ans_skb == NULL) |
| 241 | goto list_failure; |
| 242 | netlbl_netlink_hdr_push(ans_skb, |
| 243 | info->snd_pid, |
| 244 | 0, |
| 245 | netlbl_mgmt_gnl_family.id, |
| 246 | NLBL_MGMT_C_LIST); |
| 247 | |
| 248 | ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); |
| 249 | if (ret_val != 0) |
| 250 | goto list_failure; |
| 251 | |
| 252 | return 0; |
| 253 | |
| 254 | list_failure: |
| 255 | netlbl_netlink_send_ack(info, |
| 256 | netlbl_mgmt_gnl_family.id, |
| 257 | NLBL_MGMT_C_ACK, |
| 258 | -ret_val); |
| 259 | return ret_val; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * netlbl_mgmt_adddef - Handle an ADDDEF message |
| 264 | * @skb: the NETLINK buffer |
| 265 | * @info: the Generic NETLINK info block |
| 266 | * |
| 267 | * Description: |
| 268 | * Process a user generated ADDDEF message and respond accordingly. Returns |
| 269 | * zero on success, negative values on failure. |
| 270 | * |
| 271 | */ |
| 272 | static int netlbl_mgmt_adddef(struct sk_buff *skb, struct genl_info *info) |
| 273 | { |
| 274 | int ret_val = -EINVAL; |
| 275 | struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); |
| 276 | int msg_len = netlbl_netlink_payload_len(skb); |
| 277 | struct netlbl_dom_map *entry = NULL; |
| 278 | u32 tmp_val; |
| 279 | |
| 280 | ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); |
| 281 | if (ret_val != 0) |
| 282 | goto adddef_failure; |
| 283 | |
| 284 | if (msg_len < NETLBL_LEN_U32) |
| 285 | goto adddef_failure; |
| 286 | tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 287 | |
| 288 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
| 289 | if (entry == NULL) { |
| 290 | ret_val = -ENOMEM; |
| 291 | goto adddef_failure; |
| 292 | } |
| 293 | |
| 294 | entry->type = tmp_val; |
| 295 | switch (entry->type) { |
| 296 | case NETLBL_NLTYPE_UNLABELED: |
| 297 | ret_val = netlbl_domhsh_add_default(entry); |
| 298 | break; |
| 299 | case NETLBL_NLTYPE_CIPSOV4: |
| 300 | if (msg_len < NETLBL_LEN_U32) { |
| 301 | ret_val = -EINVAL; |
| 302 | goto adddef_failure; |
| 303 | } |
| 304 | tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); |
| 305 | /* We should be holding a rcu_read_lock here while we |
| 306 | * hold the result but since the entry will always be |
| 307 | * deleted when the CIPSO DOI is deleted we are going |
| 308 | * to skip the lock. */ |
| 309 | rcu_read_lock(); |
| 310 | entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); |
| 311 | if (entry->type_def.cipsov4 == NULL) { |
| 312 | rcu_read_unlock(); |
| 313 | ret_val = -EINVAL; |
| 314 | goto adddef_failure; |
| 315 | } |
| 316 | ret_val = netlbl_domhsh_add_default(entry); |
| 317 | rcu_read_unlock(); |
| 318 | break; |
| 319 | default: |
| 320 | ret_val = -EINVAL; |
| 321 | } |
| 322 | if (ret_val != 0) |
| 323 | goto adddef_failure; |
| 324 | |
| 325 | netlbl_netlink_send_ack(info, |
| 326 | netlbl_mgmt_gnl_family.id, |
| 327 | NLBL_MGMT_C_ACK, |
| 328 | NETLBL_E_OK); |
| 329 | return 0; |
| 330 | |
| 331 | adddef_failure: |
| 332 | kfree(entry); |
| 333 | netlbl_netlink_send_ack(info, |
| 334 | netlbl_mgmt_gnl_family.id, |
| 335 | NLBL_MGMT_C_ACK, |
| 336 | -ret_val); |
| 337 | return ret_val; |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * netlbl_mgmt_removedef - Handle a REMOVEDEF message |
| 342 | * @skb: the NETLINK buffer |
| 343 | * @info: the Generic NETLINK info block |
| 344 | * |
| 345 | * Description: |
| 346 | * Process a user generated REMOVEDEF message and remove the default domain |
| 347 | * mapping. Returns zero on success, negative values on failure. |
| 348 | * |
| 349 | */ |
| 350 | static int netlbl_mgmt_removedef(struct sk_buff *skb, struct genl_info *info) |
| 351 | { |
| 352 | int ret_val; |
| 353 | |
| 354 | ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); |
| 355 | if (ret_val != 0) |
| 356 | goto removedef_return; |
| 357 | |
| 358 | ret_val = netlbl_domhsh_remove_default(); |
| 359 | |
| 360 | removedef_return: |
| 361 | netlbl_netlink_send_ack(info, |
| 362 | netlbl_mgmt_gnl_family.id, |
| 363 | NLBL_MGMT_C_ACK, |
| 364 | -ret_val); |
| 365 | return ret_val; |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * netlbl_mgmt_listdef - Handle a LISTDEF message |
| 370 | * @skb: the NETLINK buffer |
| 371 | * @info: the Generic NETLINK info block |
| 372 | * |
| 373 | * Description: |
| 374 | * Process a user generated LISTDEF message and dumps the default domain |
| 375 | * mapping in a form suitable for use in a kernel generated LISTDEF message. |
| 376 | * Returns zero on success, negative values on failure. |
| 377 | * |
| 378 | */ |
| 379 | static int netlbl_mgmt_listdef(struct sk_buff *skb, struct genl_info *info) |
| 380 | { |
| 381 | int ret_val = -ENOMEM; |
| 382 | struct sk_buff *ans_skb; |
| 383 | |
| 384 | ans_skb = netlbl_domhsh_dump_default(NLMSG_SPACE(GENL_HDRLEN)); |
| 385 | if (ans_skb == NULL) |
| 386 | goto listdef_failure; |
| 387 | netlbl_netlink_hdr_push(ans_skb, |
| 388 | info->snd_pid, |
| 389 | 0, |
| 390 | netlbl_mgmt_gnl_family.id, |
| 391 | NLBL_MGMT_C_LISTDEF); |
| 392 | |
| 393 | ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); |
| 394 | if (ret_val != 0) |
| 395 | goto listdef_failure; |
| 396 | |
| 397 | return 0; |
| 398 | |
| 399 | listdef_failure: |
| 400 | netlbl_netlink_send_ack(info, |
| 401 | netlbl_mgmt_gnl_family.id, |
| 402 | NLBL_MGMT_C_ACK, |
| 403 | -ret_val); |
| 404 | return ret_val; |
| 405 | } |
| 406 | |
| 407 | /** |
| 408 | * netlbl_mgmt_modules - Handle a MODULES message |
| 409 | * @skb: the NETLINK buffer |
| 410 | * @info: the Generic NETLINK info block |
| 411 | * |
| 412 | * Description: |
| 413 | * Process a user generated MODULES message and respond accordingly. |
| 414 | * |
| 415 | */ |
| 416 | static int netlbl_mgmt_modules(struct sk_buff *skb, struct genl_info *info) |
| 417 | { |
| 418 | int ret_val = -ENOMEM; |
| 419 | size_t data_size; |
| 420 | u32 mod_count; |
| 421 | struct sk_buff *ans_skb = NULL; |
| 422 | |
| 423 | /* unlabeled + cipsov4 */ |
| 424 | mod_count = 2; |
| 425 | |
| 426 | data_size = GENL_HDRLEN + NETLBL_LEN_U32 + mod_count * NETLBL_LEN_U32; |
| 427 | ans_skb = netlbl_netlink_alloc_skb(0, data_size, GFP_KERNEL); |
| 428 | if (ans_skb == NULL) |
| 429 | goto modules_failure; |
| 430 | |
| 431 | if (netlbl_netlink_hdr_put(ans_skb, |
| 432 | info->snd_pid, |
| 433 | 0, |
| 434 | netlbl_mgmt_gnl_family.id, |
| 435 | NLBL_MGMT_C_MODULES) == NULL) |
| 436 | goto modules_failure; |
| 437 | |
| 438 | ret_val = nla_put_u32(ans_skb, NLA_U32, mod_count); |
| 439 | if (ret_val != 0) |
| 440 | goto modules_failure; |
| 441 | ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_NLTYPE_UNLABELED); |
| 442 | if (ret_val != 0) |
| 443 | goto modules_failure; |
| 444 | ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_NLTYPE_CIPSOV4); |
| 445 | if (ret_val != 0) |
| 446 | goto modules_failure; |
| 447 | |
| 448 | ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); |
| 449 | if (ret_val != 0) |
| 450 | goto modules_failure; |
| 451 | |
| 452 | return 0; |
| 453 | |
| 454 | modules_failure: |
| 455 | kfree_skb(ans_skb); |
| 456 | netlbl_netlink_send_ack(info, |
| 457 | netlbl_mgmt_gnl_family.id, |
| 458 | NLBL_MGMT_C_ACK, |
| 459 | -ret_val); |
| 460 | return ret_val; |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * netlbl_mgmt_version - Handle a VERSION message |
| 465 | * @skb: the NETLINK buffer |
| 466 | * @info: the Generic NETLINK info block |
| 467 | * |
| 468 | * Description: |
| 469 | * Process a user generated VERSION message and respond accordingly. Returns |
| 470 | * zero on success, negative values on failure. |
| 471 | * |
| 472 | */ |
| 473 | static int netlbl_mgmt_version(struct sk_buff *skb, struct genl_info *info) |
| 474 | { |
| 475 | int ret_val = -ENOMEM; |
| 476 | struct sk_buff *ans_skb = NULL; |
| 477 | |
| 478 | ans_skb = netlbl_netlink_alloc_skb(0, |
| 479 | GENL_HDRLEN + NETLBL_LEN_U32, |
| 480 | GFP_KERNEL); |
| 481 | if (ans_skb == NULL) |
| 482 | goto version_failure; |
| 483 | if (netlbl_netlink_hdr_put(ans_skb, |
| 484 | info->snd_pid, |
| 485 | 0, |
| 486 | netlbl_mgmt_gnl_family.id, |
| 487 | NLBL_MGMT_C_VERSION) == NULL) |
| 488 | goto version_failure; |
| 489 | |
| 490 | ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_PROTO_VERSION); |
| 491 | if (ret_val != 0) |
| 492 | goto version_failure; |
| 493 | |
| 494 | ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); |
| 495 | if (ret_val != 0) |
| 496 | goto version_failure; |
| 497 | |
| 498 | return 0; |
| 499 | |
| 500 | version_failure: |
| 501 | kfree_skb(ans_skb); |
| 502 | netlbl_netlink_send_ack(info, |
| 503 | netlbl_mgmt_gnl_family.id, |
| 504 | NLBL_MGMT_C_ACK, |
| 505 | -ret_val); |
| 506 | return ret_val; |
| 507 | } |
| 508 | |
| 509 | |
| 510 | /* |
| 511 | * NetLabel Generic NETLINK Command Definitions |
| 512 | */ |
| 513 | |
| 514 | static struct genl_ops netlbl_mgmt_genl_c_add = { |
| 515 | .cmd = NLBL_MGMT_C_ADD, |
| 516 | .flags = 0, |
| 517 | .doit = netlbl_mgmt_add, |
| 518 | .dumpit = NULL, |
| 519 | }; |
| 520 | |
| 521 | static struct genl_ops netlbl_mgmt_genl_c_remove = { |
| 522 | .cmd = NLBL_MGMT_C_REMOVE, |
| 523 | .flags = 0, |
| 524 | .doit = netlbl_mgmt_remove, |
| 525 | .dumpit = NULL, |
| 526 | }; |
| 527 | |
| 528 | static struct genl_ops netlbl_mgmt_genl_c_list = { |
| 529 | .cmd = NLBL_MGMT_C_LIST, |
| 530 | .flags = 0, |
| 531 | .doit = netlbl_mgmt_list, |
| 532 | .dumpit = NULL, |
| 533 | }; |
| 534 | |
| 535 | static struct genl_ops netlbl_mgmt_genl_c_adddef = { |
| 536 | .cmd = NLBL_MGMT_C_ADDDEF, |
| 537 | .flags = 0, |
| 538 | .doit = netlbl_mgmt_adddef, |
| 539 | .dumpit = NULL, |
| 540 | }; |
| 541 | |
| 542 | static struct genl_ops netlbl_mgmt_genl_c_removedef = { |
| 543 | .cmd = NLBL_MGMT_C_REMOVEDEF, |
| 544 | .flags = 0, |
| 545 | .doit = netlbl_mgmt_removedef, |
| 546 | .dumpit = NULL, |
| 547 | }; |
| 548 | |
| 549 | static struct genl_ops netlbl_mgmt_genl_c_listdef = { |
| 550 | .cmd = NLBL_MGMT_C_LISTDEF, |
| 551 | .flags = 0, |
| 552 | .doit = netlbl_mgmt_listdef, |
| 553 | .dumpit = NULL, |
| 554 | }; |
| 555 | |
| 556 | static struct genl_ops netlbl_mgmt_genl_c_modules = { |
| 557 | .cmd = NLBL_MGMT_C_MODULES, |
| 558 | .flags = 0, |
| 559 | .doit = netlbl_mgmt_modules, |
| 560 | .dumpit = NULL, |
| 561 | }; |
| 562 | |
| 563 | static struct genl_ops netlbl_mgmt_genl_c_version = { |
| 564 | .cmd = NLBL_MGMT_C_VERSION, |
| 565 | .flags = 0, |
| 566 | .doit = netlbl_mgmt_version, |
| 567 | .dumpit = NULL, |
| 568 | }; |
| 569 | |
| 570 | /* |
| 571 | * NetLabel Generic NETLINK Protocol Functions |
| 572 | */ |
| 573 | |
| 574 | /** |
| 575 | * netlbl_mgmt_genl_init - Register the NetLabel management component |
| 576 | * |
| 577 | * Description: |
| 578 | * Register the NetLabel management component with the Generic NETLINK |
| 579 | * mechanism. Returns zero on success, negative values on failure. |
| 580 | * |
| 581 | */ |
| 582 | int netlbl_mgmt_genl_init(void) |
| 583 | { |
| 584 | int ret_val; |
| 585 | |
| 586 | ret_val = genl_register_family(&netlbl_mgmt_gnl_family); |
| 587 | if (ret_val != 0) |
| 588 | return ret_val; |
| 589 | |
| 590 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 591 | &netlbl_mgmt_genl_c_add); |
| 592 | if (ret_val != 0) |
| 593 | return ret_val; |
| 594 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 595 | &netlbl_mgmt_genl_c_remove); |
| 596 | if (ret_val != 0) |
| 597 | return ret_val; |
| 598 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 599 | &netlbl_mgmt_genl_c_list); |
| 600 | if (ret_val != 0) |
| 601 | return ret_val; |
| 602 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 603 | &netlbl_mgmt_genl_c_adddef); |
| 604 | if (ret_val != 0) |
| 605 | return ret_val; |
| 606 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 607 | &netlbl_mgmt_genl_c_removedef); |
| 608 | if (ret_val != 0) |
| 609 | return ret_val; |
| 610 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 611 | &netlbl_mgmt_genl_c_listdef); |
| 612 | if (ret_val != 0) |
| 613 | return ret_val; |
| 614 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 615 | &netlbl_mgmt_genl_c_modules); |
| 616 | if (ret_val != 0) |
| 617 | return ret_val; |
| 618 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, |
| 619 | &netlbl_mgmt_genl_c_version); |
| 620 | if (ret_val != 0) |
| 621 | return ret_val; |
| 622 | |
| 623 | return 0; |
| 624 | } |