Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 1 | /* Author: Joshua Brindle <jbrindle@tresys.co |
| 2 | * Jason Tang <jtang@tresys.com> |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 3 | * Caleb Case <ccase@tresys.com> |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 4 | * |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 5 | * Copyright (C) 2004-2005,2009 Tresys Technology, LLC |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /* This file implements only the publicly-visible module functions to libsemanage. */ |
| 23 | |
| 24 | #include "direct_api.h" |
| 25 | #include "semanage_conf.h" |
| 26 | #include "semanage_store.h" |
| 27 | |
| 28 | #include <stdarg.h> |
| 29 | #include <assert.h> |
| 30 | #include <stdlib.h> |
| 31 | #include <stdio.h> |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 32 | #include <string.h> |
| 33 | #include <limits.h> |
| 34 | #include <fcntl.h> |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/stat.h> |
| 37 | #include <errno.h> |
| 38 | #include <ctype.h> |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 39 | |
| 40 | #include "handle.h" |
| 41 | #include "modules.h" |
| 42 | #include "debug.h" |
| 43 | |
Steve Lawrence | 9fbc6d1 | 2014-06-13 13:20:26 -0400 | [diff] [blame] | 44 | asm(".symver semanage_module_get_enabled_1_1,semanage_module_get_enabled@@LIBSEMANAGE_1.1"); |
| 45 | asm(".symver semanage_module_get_enabled_1_0,semanage_module_get_enabled@LIBSEMANAGE_1.0"); |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 46 | asm(".symver semanage_module_install_pp,semanage_module_install@LIBSEMANAGE_1.0"); |
| 47 | asm(".symver semanage_module_install_hll,semanage_module_install@@LIBSEMANAGE_1.1"); |
Steve Lawrence | 9fbc6d1 | 2014-06-13 13:20:26 -0400 | [diff] [blame] | 48 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 49 | /* Takes a module stored in 'module_data' and parses its headers. |
| 50 | * Sets reference variables 'module_name' to module's name and |
| 51 | * 'version' to module's version. The caller is responsible for |
| 52 | * free()ing 'module_name' and 'version'; they will be |
| 53 | * set to NULL upon entering this function. Returns 0 on success, -1 |
| 54 | * if out of memory, or -2 if data did not represent a module. |
| 55 | */ |
| 56 | static int parse_module_headers(semanage_handle_t * sh, char *module_data, |
| 57 | size_t data_len, char **module_name, char **version) |
| 58 | { |
| 59 | struct sepol_policy_file *pf; |
| 60 | int file_type; |
| 61 | *version = NULL; |
| 62 | |
| 63 | if (sepol_policy_file_create(&pf)) { |
| 64 | ERR(sh, "Out of memory!"); |
| 65 | return -1; |
| 66 | } |
| 67 | sepol_policy_file_set_mem(pf, module_data, data_len); |
| 68 | sepol_policy_file_set_handle(pf, sh->sepolh); |
| 69 | if (module_data == NULL || |
| 70 | data_len == 0 || |
| 71 | sepol_module_package_info(pf, &file_type, module_name, version) == -1) { |
| 72 | sepol_policy_file_free(pf); |
| 73 | ERR(sh, "Could not parse module data."); |
| 74 | return -2; |
| 75 | } |
| 76 | sepol_policy_file_free(pf); |
| 77 | if (file_type != SEPOL_POLICY_MOD) { |
| 78 | ERR(sh, "Data did not represent a pp module. Please upgrade to the latest version of libsemanage to support hll modules."); |
| 79 | return -2; |
| 80 | } |
| 81 | |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | /* This function is used to preserve ABI compatibility with |
| 86 | * versions of semodule using LIBSEMANAGE_1.0 |
| 87 | */ |
| 88 | int semanage_module_install_pp(semanage_handle_t * sh, |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 89 | char *module_data, size_t data_len) |
| 90 | { |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 91 | char *name = NULL; |
| 92 | char *version = NULL; |
| 93 | int status; |
| 94 | |
| 95 | if ((status = parse_module_headers(sh, module_data, data_len, &name, &version)) != 0) { |
| 96 | goto cleanup; |
| 97 | } |
| 98 | |
| 99 | status = semanage_module_install_hll(sh, module_data, data_len, name, "pp"); |
| 100 | |
| 101 | cleanup: |
| 102 | free(name); |
| 103 | free(version); |
| 104 | return status; |
| 105 | } |
| 106 | |
| 107 | int semanage_module_install_hll(semanage_handle_t * sh, |
| 108 | char *module_data, size_t data_len, char *name, char *ext_lang) |
| 109 | { |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 110 | if (sh->funcs->install == NULL) { |
| 111 | ERR(sh, |
| 112 | "No install function defined for this connection type."); |
| 113 | return -1; |
| 114 | } else if (!sh->is_connected) { |
| 115 | ERR(sh, "Not connected."); |
| 116 | return -1; |
| 117 | } else if (!sh->is_in_transaction) { |
| 118 | if (semanage_begin_transaction(sh) < 0) { |
| 119 | return -1; |
| 120 | } |
| 121 | } |
| 122 | sh->modules_modified = 1; |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 123 | return sh->funcs->install(sh, module_data, data_len, name, ext_lang); |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 124 | } |
| 125 | |
Joshua Brindle | df77db4 | 2009-01-05 05:37:06 -0500 | [diff] [blame] | 126 | int semanage_module_install_file(semanage_handle_t * sh, |
| 127 | const char *module_name) { |
| 128 | |
| 129 | if (sh->funcs->install_file == NULL) { |
| 130 | ERR(sh, |
| 131 | "No install function defined for this connection type."); |
| 132 | return -1; |
| 133 | } else if (!sh->is_connected) { |
| 134 | ERR(sh, "Not connected."); |
| 135 | return -1; |
| 136 | } else if (!sh->is_in_transaction) { |
| 137 | if (semanage_begin_transaction(sh) < 0) { |
| 138 | return -1; |
| 139 | } |
| 140 | } |
| 141 | sh->modules_modified = 1; |
| 142 | return sh->funcs->install_file(sh, module_name); |
| 143 | } |
| 144 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 145 | /* Legacy function that remains to preserve ABI |
| 146 | * compatibility. Please use semanage_module_install instead. |
| 147 | */ |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 148 | int semanage_module_upgrade(semanage_handle_t * sh, |
| 149 | char *module_data, size_t data_len) |
| 150 | { |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 151 | return semanage_module_install_pp(sh, module_data, data_len); |
Daniel J Walsh | c282c40 | 2009-09-11 14:40:48 -0400 | [diff] [blame] | 152 | |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 153 | } |
| 154 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 155 | /* Legacy function that remains to preserve ABI |
| 156 | * compatibility. Please use semanage_module_install_file instead. |
| 157 | */ |
Joshua Brindle | df77db4 | 2009-01-05 05:37:06 -0500 | [diff] [blame] | 158 | int semanage_module_upgrade_file(semanage_handle_t * sh, |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 159 | const char *module_name) |
| 160 | { |
| 161 | return semanage_module_install_file(sh, module_name); |
Joshua Brindle | df77db4 | 2009-01-05 05:37:06 -0500 | [diff] [blame] | 162 | } |
| 163 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 164 | /* Legacy function that remains to preserve ABI |
| 165 | * compatibility. Please use semanage_module_install instead. |
| 166 | */ |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 167 | int semanage_module_install_base(semanage_handle_t * sh, |
| 168 | char *module_data, size_t data_len) |
| 169 | { |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 170 | return semanage_module_install_pp(sh, module_data, data_len); |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 171 | } |
| 172 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 173 | /* Legacy function that remains to preserve ABI |
| 174 | * compatibility. Please use semanage_module_install_file instead. |
| 175 | */ |
Joshua Brindle | df77db4 | 2009-01-05 05:37:06 -0500 | [diff] [blame] | 176 | int semanage_module_install_base_file(semanage_handle_t * sh, |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 177 | const char *module_name) |
| 178 | { |
| 179 | return semanage_module_install_file(sh, module_name); |
Joshua Brindle | df77db4 | 2009-01-05 05:37:06 -0500 | [diff] [blame] | 180 | } |
| 181 | |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 182 | int semanage_module_remove(semanage_handle_t * sh, char *module_name) |
| 183 | { |
| 184 | if (sh->funcs->remove == NULL) { |
| 185 | ERR(sh, "No remove function defined for this connection type."); |
| 186 | return -1; |
| 187 | } else if (!sh->is_connected) { |
| 188 | ERR(sh, "Not connected."); |
| 189 | return -1; |
| 190 | } else if (!sh->is_in_transaction) { |
| 191 | if (semanage_begin_transaction(sh) < 0) { |
| 192 | return -1; |
| 193 | } |
| 194 | } |
| 195 | sh->modules_modified = 1; |
| 196 | return sh->funcs->remove(sh, module_name); |
| 197 | } |
| 198 | |
| 199 | int semanage_module_list(semanage_handle_t * sh, |
| 200 | semanage_module_info_t ** modinfo, int *num_modules) |
| 201 | { |
| 202 | if (sh->funcs->list == NULL) { |
| 203 | ERR(sh, "No list function defined for this connection type."); |
| 204 | return -1; |
| 205 | } else if (!sh->is_connected) { |
| 206 | ERR(sh, "Not connected."); |
| 207 | return -1; |
| 208 | } |
| 209 | return sh->funcs->list(sh, modinfo, num_modules); |
| 210 | } |
| 211 | |
| 212 | void semanage_module_info_datum_destroy(semanage_module_info_t * modinfo) |
| 213 | { |
| 214 | if (modinfo != NULL) { |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 215 | modinfo->priority = 0; |
| 216 | |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 217 | free(modinfo->name); |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 218 | modinfo->name = NULL; |
| 219 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 220 | free(modinfo->lang_ext); |
| 221 | modinfo->lang_ext = NULL; |
| 222 | |
| 223 | modinfo->enabled = -1; |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 224 | } |
| 225 | } |
| 226 | |
| 227 | hidden_def(semanage_module_info_datum_destroy) |
| 228 | |
| 229 | semanage_module_info_t *semanage_module_list_nth(semanage_module_info_t * list, |
| 230 | int n) |
| 231 | { |
| 232 | return list + n; |
| 233 | } |
| 234 | |
| 235 | hidden_def(semanage_module_list_nth) |
| 236 | |
| 237 | const char *semanage_module_get_name(semanage_module_info_t * modinfo) |
| 238 | { |
| 239 | return modinfo->name; |
| 240 | } |
| 241 | |
| 242 | hidden_def(semanage_module_get_name) |
| 243 | |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 244 | /* Legacy function that remains to preserve ABI |
| 245 | * compatibility. |
| 246 | */ |
| 247 | const char *semanage_module_get_version(semanage_module_info_t * modinfo |
| 248 | __attribute__ ((unused))) |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 249 | { |
Steve Lawrence | d5bcc22 | 2011-10-14 15:29:29 -0400 | [diff] [blame] | 250 | return ""; |
Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame] | 251 | } |
| 252 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 253 | int semanage_module_info_create(semanage_handle_t *sh, |
| 254 | semanage_module_info_t **modinfo) |
| 255 | { |
| 256 | assert(sh); |
| 257 | assert(modinfo); |
| 258 | |
| 259 | *modinfo = malloc(sizeof(semanage_module_info_t)); |
| 260 | if (*modinfo == NULL) return -1; |
| 261 | |
| 262 | return semanage_module_info_init(sh, *modinfo); |
| 263 | } |
| 264 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 265 | hidden_def(semanage_module_info_create) |
| 266 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 267 | int semanage_module_info_destroy(semanage_handle_t *sh, |
| 268 | semanage_module_info_t *modinfo) |
| 269 | { |
| 270 | assert(sh); |
| 271 | |
| 272 | if (!modinfo) { |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | free(modinfo->name); |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 277 | free(modinfo->lang_ext); |
| 278 | |
| 279 | return semanage_module_info_init(sh, modinfo); |
| 280 | } |
| 281 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 282 | hidden_def(semanage_module_info_destroy) |
| 283 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 284 | int semanage_module_info_init(semanage_handle_t *sh, |
| 285 | semanage_module_info_t *modinfo) |
| 286 | { |
| 287 | assert(sh); |
| 288 | assert(modinfo); |
| 289 | |
| 290 | modinfo->priority = 0; |
| 291 | modinfo->name = NULL; |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 292 | modinfo->lang_ext = NULL; |
| 293 | modinfo->enabled = -1; |
| 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | int semanage_module_info_clone(semanage_handle_t *sh, |
| 299 | const semanage_module_info_t *source, |
| 300 | semanage_module_info_t *target) |
| 301 | { |
| 302 | assert(sh); |
| 303 | assert(source); |
| 304 | assert(target); |
| 305 | |
| 306 | int status = 0; |
| 307 | int ret = 0; |
| 308 | |
| 309 | ret = semanage_module_info_destroy(sh, target); |
| 310 | if (ret != 0) { |
| 311 | status = -1; |
| 312 | goto cleanup; |
| 313 | } |
| 314 | |
| 315 | ret = semanage_module_info_set_priority(sh, target, source->priority); |
| 316 | if (ret != 0) { |
| 317 | status = -1; |
| 318 | goto cleanup; |
| 319 | } |
| 320 | |
| 321 | ret = semanage_module_info_set_name(sh, target, source->name); |
| 322 | if (ret != 0) { |
| 323 | status = -1; |
| 324 | goto cleanup; |
| 325 | } |
| 326 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 327 | ret = semanage_module_info_set_lang_ext(sh, target, source->lang_ext); |
| 328 | if (ret != 0) { |
| 329 | status = -1; |
| 330 | goto cleanup; |
| 331 | } |
| 332 | |
| 333 | ret = semanage_module_info_set_enabled(sh, target, source->enabled); |
| 334 | if (ret != 0) { |
| 335 | status = -1; |
| 336 | goto cleanup; |
| 337 | } |
| 338 | |
| 339 | cleanup: |
| 340 | if (status != 0) semanage_module_info_destroy(sh, target); |
| 341 | return status; |
| 342 | } |
| 343 | |
| 344 | int semanage_module_info_get_priority(semanage_handle_t *sh, |
| 345 | semanage_module_info_t *modinfo, |
| 346 | uint16_t *priority) |
| 347 | { |
| 348 | assert(sh); |
| 349 | assert(modinfo); |
| 350 | assert(priority); |
| 351 | |
| 352 | *priority = modinfo->priority; |
| 353 | |
| 354 | return 0; |
| 355 | } |
| 356 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 357 | hidden_def(semanage_module_info_get_priority) |
| 358 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 359 | int semanage_module_info_get_name(semanage_handle_t *sh, |
| 360 | semanage_module_info_t *modinfo, |
| 361 | const char **name) |
| 362 | { |
| 363 | assert(sh); |
| 364 | assert(modinfo); |
| 365 | assert(name); |
| 366 | |
| 367 | *name = modinfo->name; |
| 368 | |
| 369 | return 0; |
| 370 | } |
| 371 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 372 | hidden_def(semanage_module_info_get_name) |
| 373 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 374 | int semanage_module_info_get_lang_ext(semanage_handle_t *sh, |
| 375 | semanage_module_info_t *modinfo, |
| 376 | const char **lang_ext) |
| 377 | { |
| 378 | assert(sh); |
| 379 | assert(modinfo); |
| 380 | assert(lang_ext); |
| 381 | |
| 382 | *lang_ext = modinfo->lang_ext; |
| 383 | |
| 384 | return 0; |
| 385 | } |
| 386 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 387 | hidden_def(semanage_module_info_get_lang_ext) |
| 388 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 389 | int semanage_module_info_get_enabled(semanage_handle_t *sh, |
| 390 | semanage_module_info_t *modinfo, |
| 391 | int *enabled) |
| 392 | { |
| 393 | assert(sh); |
| 394 | assert(modinfo); |
| 395 | assert(enabled); |
| 396 | |
| 397 | *enabled = modinfo->enabled; |
| 398 | |
| 399 | return 0; |
| 400 | } |
| 401 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 402 | hidden_def(semanage_module_info_get_enabled) |
| 403 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 404 | int semanage_module_info_set_priority(semanage_handle_t *sh, |
| 405 | semanage_module_info_t *modinfo, |
| 406 | uint16_t priority) |
| 407 | { |
| 408 | assert(sh); |
| 409 | assert(modinfo); |
| 410 | |
| 411 | /* Verify priority */ |
| 412 | if (semanage_module_validate_priority(priority) < 0) { |
| 413 | errno = 0; |
| 414 | ERR(sh, "Priority %d is invalid.", priority); |
| 415 | return -1; |
| 416 | } |
| 417 | |
| 418 | modinfo->priority = priority; |
| 419 | |
| 420 | return 0; |
| 421 | } |
| 422 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 423 | hidden_def(semanage_module_info_set_priority) |
| 424 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 425 | int semanage_module_info_set_name(semanage_handle_t *sh, |
| 426 | semanage_module_info_t *modinfo, |
| 427 | const char *name) |
| 428 | { |
| 429 | assert(sh); |
| 430 | assert(modinfo); |
| 431 | assert(name); |
| 432 | |
| 433 | char * tmp; |
| 434 | |
| 435 | /* Verify name */ |
| 436 | if (semanage_module_validate_name(name) < 0) { |
| 437 | errno = 0; |
| 438 | ERR(sh, "Name %s is invalid.", name); |
| 439 | return -1; |
| 440 | } |
| 441 | |
| 442 | tmp = strdup(name); |
| 443 | if (!tmp) { |
| 444 | return -1; |
| 445 | } |
| 446 | |
| 447 | free(modinfo->name); |
| 448 | modinfo->name = tmp; |
| 449 | |
| 450 | return 0; |
| 451 | } |
| 452 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 453 | hidden_def(semanage_module_info_set_name) |
| 454 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 455 | int semanage_module_info_set_lang_ext(semanage_handle_t *sh, |
| 456 | semanage_module_info_t *modinfo, |
| 457 | const char *lang_ext) |
| 458 | { |
| 459 | assert(sh); |
| 460 | assert(modinfo); |
| 461 | assert(lang_ext); |
| 462 | |
| 463 | char * tmp; |
| 464 | |
| 465 | /* Verify extension */ |
| 466 | if (semanage_module_validate_lang_ext(lang_ext) < 0) { |
| 467 | errno = 0; |
| 468 | ERR(sh, "Language extensions %s is invalid.", lang_ext); |
| 469 | return -1; |
| 470 | } |
| 471 | |
| 472 | tmp = strdup(lang_ext); |
| 473 | if (!tmp) { |
| 474 | return -1; |
| 475 | } |
| 476 | |
| 477 | free(modinfo->lang_ext); |
| 478 | modinfo->lang_ext = tmp; |
| 479 | |
| 480 | return 0; |
| 481 | } |
| 482 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 483 | hidden_def(semanage_module_info_set_lang_ext) |
| 484 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 485 | int semanage_module_info_set_enabled(semanage_handle_t *sh, |
| 486 | semanage_module_info_t *modinfo, |
| 487 | int enabled) |
| 488 | { |
| 489 | assert(sh); |
| 490 | assert(modinfo); |
| 491 | |
| 492 | /* Verify enabled */ |
| 493 | if (semanage_module_validate_enabled(enabled) < 0) { |
| 494 | errno = 0; |
| 495 | ERR(sh, "Enabled status %d is invalid.", enabled); |
| 496 | return -1; |
| 497 | } |
| 498 | |
| 499 | modinfo->enabled = enabled; |
| 500 | |
| 501 | return 0; |
| 502 | } |
| 503 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 504 | hidden_def(semanage_module_info_set_enabled) |
| 505 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 506 | int semanage_module_get_path(semanage_handle_t *sh, |
| 507 | const semanage_module_info_t *modinfo, |
| 508 | enum semanage_module_path_type type, |
| 509 | char *path, |
| 510 | size_t len) |
| 511 | { |
| 512 | assert(sh); |
| 513 | assert(modinfo); |
| 514 | assert(path); |
| 515 | |
| 516 | int status = 0; |
| 517 | int ret = 0; |
| 518 | |
| 519 | const char *modules_path = NULL; |
| 520 | const char *file = NULL; |
| 521 | |
| 522 | modules_path = sh->is_in_transaction ? |
| 523 | semanage_path(SEMANAGE_TMP, SEMANAGE_MODULES): |
| 524 | semanage_path(SEMANAGE_ACTIVE, SEMANAGE_MODULES); |
| 525 | |
| 526 | switch (type) { |
| 527 | case SEMANAGE_MODULE_PATH_PRIORITY: |
| 528 | /* verify priority */ |
| 529 | ret = semanage_module_validate_priority(modinfo->priority); |
| 530 | if (ret < 0) { |
| 531 | errno = 0; |
| 532 | ERR(sh, |
| 533 | "Priority %d is invalid.", |
| 534 | modinfo->priority); |
| 535 | status = ret; |
| 536 | goto cleanup; |
| 537 | } |
| 538 | |
| 539 | ret = snprintf(path, |
| 540 | len, |
| 541 | "%s/%03u", |
| 542 | modules_path, |
| 543 | modinfo->priority); |
| 544 | if (ret < 0 || (size_t)ret >= len) { |
| 545 | ERR(sh, "Unable to compose priority path."); |
| 546 | status = -1; |
| 547 | goto cleanup; |
| 548 | } |
| 549 | break; |
| 550 | case SEMANAGE_MODULE_PATH_NAME: |
| 551 | /* verify priority and name */ |
| 552 | ret = semanage_module_validate_priority(modinfo->priority); |
| 553 | if (ret < 0) { |
| 554 | errno = 0; |
| 555 | ERR(sh, |
| 556 | "Priority %d is invalid.", |
| 557 | modinfo->priority); |
| 558 | status = -1; |
| 559 | goto cleanup; |
| 560 | } |
| 561 | |
| 562 | ret = semanage_module_validate_name(modinfo->name); |
| 563 | if (ret < 0) { |
| 564 | errno = 0; |
| 565 | ERR(sh, "Name %s is invalid.", modinfo->name); |
| 566 | status = -1; |
| 567 | goto cleanup; |
| 568 | } |
| 569 | |
| 570 | ret = snprintf(path, |
| 571 | len, |
| 572 | "%s/%03u/%s", |
| 573 | modules_path, |
| 574 | modinfo->priority, |
| 575 | modinfo->name); |
| 576 | if (ret < 0 || (size_t)ret >= len) { |
| 577 | ERR(sh, "Unable to compose name path."); |
| 578 | status = -1; |
| 579 | goto cleanup; |
| 580 | } |
| 581 | break; |
| 582 | case SEMANAGE_MODULE_PATH_HLL: |
| 583 | /* verify priority, name, and ext */ |
| 584 | ret = semanage_module_validate_lang_ext(modinfo->lang_ext); |
| 585 | if (ret < 0) { |
| 586 | errno = 0; |
| 587 | ERR(sh, |
| 588 | "Language extensions %s is invalid.", |
| 589 | modinfo->lang_ext); |
| 590 | status = -1; |
| 591 | goto cleanup; |
| 592 | } |
| 593 | |
| 594 | ret = semanage_module_validate_priority(modinfo->priority); |
| 595 | if (ret < 0) { |
| 596 | errno = 0; |
| 597 | ERR(sh, |
| 598 | "Priority %d is invalid.", |
| 599 | modinfo->priority); |
| 600 | status = -1; |
| 601 | goto cleanup; |
| 602 | } |
| 603 | |
| 604 | ret = semanage_module_validate_name(modinfo->name); |
| 605 | if (ret < 0) { |
| 606 | errno = 0; |
| 607 | ERR(sh, "Name %s is invalid.", modinfo->name); |
| 608 | status = -1; |
| 609 | goto cleanup; |
| 610 | } |
| 611 | |
| 612 | ret = snprintf(path, |
| 613 | len, |
| 614 | "%s/%03u/%s/%s.%s", |
| 615 | modules_path, |
| 616 | modinfo->priority, |
| 617 | modinfo->name, |
| 618 | modinfo->name, |
| 619 | modinfo->lang_ext); |
| 620 | if (ret < 0 || (size_t)ret >= len) { |
| 621 | ERR(sh, "Unable to compose hll path."); |
| 622 | status = -1; |
| 623 | goto cleanup; |
| 624 | } |
| 625 | break; |
| 626 | case SEMANAGE_MODULE_PATH_CIL: |
| 627 | if (file == NULL) file = "cil"; |
| 628 | case SEMANAGE_MODULE_PATH_LANG_EXT: |
| 629 | if (file == NULL) file = "lang_ext"; |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 630 | |
| 631 | /* verify priority and name */ |
| 632 | ret = semanage_module_validate_priority(modinfo->priority); |
| 633 | if (ret < 0) { |
| 634 | errno = 0; |
| 635 | ERR(sh, |
| 636 | "Priority %d is invalid.", |
| 637 | modinfo->priority); |
| 638 | status = -1; |
| 639 | goto cleanup; |
| 640 | } |
| 641 | |
| 642 | ret = semanage_module_validate_name(modinfo->name); |
| 643 | if (ret < 0) { |
| 644 | errno = 0; |
| 645 | ERR(sh, "Name %s is invalid.", modinfo->name); |
| 646 | status = -1; |
| 647 | goto cleanup; |
| 648 | } |
| 649 | |
| 650 | ret = snprintf(path, |
| 651 | len, |
| 652 | "%s/%03u/%s/%s", |
| 653 | modules_path, |
| 654 | modinfo->priority, |
| 655 | modinfo->name, |
| 656 | file); |
| 657 | if (ret < 0 || (size_t)ret >= len) { |
| 658 | ERR(sh, |
| 659 | "Unable to compose path for %s file.", |
| 660 | file); |
| 661 | status = -1; |
| 662 | goto cleanup; |
| 663 | } |
| 664 | break; |
| 665 | case SEMANAGE_MODULE_PATH_DISABLED: |
| 666 | /* verify name */ |
| 667 | ret = semanage_module_validate_name(modinfo->name); |
| 668 | if (ret < 0) { |
| 669 | errno = 0; |
| 670 | ERR(sh, "Name %s is invalid.", modinfo->name); |
| 671 | status = -1; |
| 672 | goto cleanup; |
| 673 | } |
| 674 | |
| 675 | ret = snprintf(path, |
| 676 | len, |
| 677 | "%s/disabled/%s", |
| 678 | modules_path, |
| 679 | modinfo->name); |
| 680 | if (ret < 0 || (size_t)ret >= len) { |
| 681 | ERR(sh, |
| 682 | "Unable to compose disabled status path."); |
| 683 | status = -1; |
| 684 | goto cleanup; |
| 685 | } |
| 686 | break; |
| 687 | default: |
| 688 | ERR(sh, "Invalid module path type %d.", type); |
| 689 | status = -1; |
| 690 | goto cleanup; |
| 691 | } |
| 692 | |
| 693 | cleanup: |
| 694 | return status; |
| 695 | } |
| 696 | |
| 697 | int semanage_module_key_create(semanage_handle_t *sh, |
| 698 | semanage_module_key_t **modkey) |
| 699 | { |
| 700 | assert(sh); |
| 701 | assert(modkey); |
| 702 | |
| 703 | *modkey = malloc(sizeof(semanage_module_key_t)); |
| 704 | if (*modkey == NULL) return -1; |
| 705 | |
| 706 | return semanage_module_key_init(sh, *modkey); |
| 707 | } |
| 708 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 709 | hidden_def(semanage_module_key_create) |
| 710 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 711 | int semanage_module_key_destroy(semanage_handle_t *sh, |
| 712 | semanage_module_key_t *modkey) |
| 713 | { |
| 714 | assert(sh); |
| 715 | |
| 716 | if (modkey) { |
| 717 | free(modkey->name); |
| 718 | } |
| 719 | |
| 720 | return semanage_module_key_init(sh, modkey); |
| 721 | } |
| 722 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 723 | hidden_def(semanage_module_key_destroy) |
| 724 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 725 | int semanage_module_key_init(semanage_handle_t *sh, |
| 726 | semanage_module_key_t *modkey) |
| 727 | { |
| 728 | assert(sh); |
| 729 | assert(modkey); |
| 730 | |
| 731 | modkey->name = NULL; |
| 732 | modkey->priority = 0; |
| 733 | |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | int semanage_module_key_get_name(semanage_handle_t *sh, |
| 738 | semanage_module_key_t *modkey, |
| 739 | const char **name) |
| 740 | { |
| 741 | assert(sh); |
| 742 | assert(modkey); |
| 743 | assert(name); |
| 744 | |
| 745 | *name = modkey->name; |
| 746 | |
| 747 | return 0; |
| 748 | } |
| 749 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 750 | hidden_def(semanage_module_key_get_name) |
| 751 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 752 | int semanage_module_key_get_priority(semanage_handle_t *sh, |
| 753 | semanage_module_key_t *modkey, |
| 754 | uint16_t *priority) |
| 755 | { |
| 756 | assert(sh); |
| 757 | assert(modkey); |
| 758 | assert(priority); |
| 759 | |
| 760 | *priority = modkey->priority; |
| 761 | |
| 762 | return 0; |
| 763 | } |
| 764 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 765 | hidden_def(semanage_module_key_get_priority) |
| 766 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 767 | int semanage_module_key_set_name(semanage_handle_t *sh, |
| 768 | semanage_module_key_t *modkey, |
| 769 | const char *name) |
| 770 | { |
| 771 | assert(sh); |
| 772 | assert(modkey); |
| 773 | assert(name); |
| 774 | |
| 775 | int status = 0; |
| 776 | char *tmp = NULL; |
| 777 | |
| 778 | if (semanage_module_validate_name(name) < 0) { |
| 779 | errno = 0; |
| 780 | ERR(sh, "Name %s is invalid.", name); |
| 781 | return -1; |
| 782 | } |
| 783 | |
| 784 | tmp = strdup(name); |
| 785 | if (tmp == NULL) { |
| 786 | status = -1; |
| 787 | goto cleanup; |
| 788 | } |
| 789 | |
| 790 | free(modkey->name); |
| 791 | modkey->name = tmp; |
| 792 | |
| 793 | cleanup: |
| 794 | return status; |
| 795 | } |
| 796 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 797 | hidden_def(semanage_module_key_set_name) |
| 798 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 799 | int semanage_module_key_set_priority(semanage_handle_t *sh, |
| 800 | semanage_module_key_t *modkey, |
| 801 | uint16_t priority) |
| 802 | { |
| 803 | assert(sh); |
| 804 | assert(modkey); |
| 805 | |
| 806 | if (semanage_module_validate_priority(priority) < 0) { |
| 807 | errno = 0; |
| 808 | ERR(sh, "Priority %d is invalid.", priority); |
| 809 | return -1; |
| 810 | } |
| 811 | |
| 812 | modkey->priority = priority; |
| 813 | |
| 814 | return 0; |
| 815 | } |
| 816 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 817 | hidden_def(semanage_module_key_set_priority) |
| 818 | |
Steve Lawrence | 9fbc6d1 | 2014-06-13 13:20:26 -0400 | [diff] [blame] | 819 | int semanage_module_get_enabled_1_1(semanage_handle_t *sh, |
Caleb Case | d4048fa | 2009-12-23 18:25:55 -0500 | [diff] [blame] | 820 | const semanage_module_key_t *modkey, |
| 821 | int *enabled) |
| 822 | { |
| 823 | assert(sh); |
| 824 | assert(modkey); |
| 825 | assert(enabled); |
| 826 | |
| 827 | if (sh->funcs->get_enabled == NULL) { |
| 828 | ERR(sh, |
| 829 | "No get_enabled function defined for this connection type."); |
| 830 | return -1; |
| 831 | } else if (!sh->is_connected) { |
| 832 | ERR(sh, "Not connected."); |
| 833 | return -1; |
| 834 | } |
| 835 | |
| 836 | return sh->funcs->get_enabled(sh, modkey, enabled); |
| 837 | } |
| 838 | |
Steve Lawrence | 9fbc6d1 | 2014-06-13 13:20:26 -0400 | [diff] [blame] | 839 | int semanage_module_get_enabled_1_0(semanage_module_info_t *modinfo) |
| 840 | { |
| 841 | return modinfo->enabled; |
| 842 | } |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 843 | |
Caleb Case | d4048fa | 2009-12-23 18:25:55 -0500 | [diff] [blame] | 844 | int semanage_module_set_enabled(semanage_handle_t *sh, |
| 845 | const semanage_module_key_t *modkey, |
| 846 | int enabled) |
| 847 | { |
| 848 | assert(sh); |
| 849 | assert(modkey); |
| 850 | |
| 851 | if (sh->funcs->set_enabled == NULL) { |
| 852 | ERR(sh, |
| 853 | "No set_enabled function defined for this connection type."); |
| 854 | return -1; |
| 855 | } else if (!sh->is_connected) { |
| 856 | ERR(sh, "Not connected."); |
| 857 | return -1; |
| 858 | } else if (!sh->is_in_transaction) { |
| 859 | if (semanage_begin_transaction(sh) < 0) { |
| 860 | return -1; |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | sh->modules_modified = 1; |
| 865 | return sh->funcs->set_enabled(sh, modkey, enabled); |
| 866 | } |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 867 | |
Caleb Case | 1875c85 | 2009-12-23 18:25:58 -0500 | [diff] [blame] | 868 | hidden_def(semanage_module_set_enabled) |
| 869 | |
Steve Lawrence | 9fbc6d1 | 2014-06-13 13:20:26 -0400 | [diff] [blame] | 870 | /* This function exists only for ABI compatability. It has been deprecated and |
| 871 | * should not be used. Instead, use semanage_module_set_enabled() */ |
| 872 | int semanage_module_enable(semanage_handle_t *sh, char *module_name) |
| 873 | { |
| 874 | int rc = -1; |
| 875 | semanage_module_key_t *modkey = NULL; |
| 876 | |
| 877 | rc = semanage_module_key_create(sh, &modkey); |
| 878 | if (rc != 0) |
| 879 | goto exit; |
| 880 | |
| 881 | rc = semanage_module_key_set_name(sh, modkey, module_name); |
| 882 | if (rc != 0) |
| 883 | goto exit; |
| 884 | |
| 885 | rc = semanage_module_set_enabled(sh, modkey, 1); |
| 886 | if (rc != 0) |
| 887 | goto exit; |
| 888 | |
| 889 | rc = 0; |
| 890 | |
| 891 | exit: |
| 892 | semanage_module_key_destroy(sh, modkey); |
| 893 | free(modkey); |
| 894 | |
| 895 | return rc; |
| 896 | } |
| 897 | |
| 898 | /* This function exists only for ABI compatability. It has been deprecated and |
| 899 | * should not be used. Instead, use semanage_module_set_enabled() */ |
| 900 | int semanage_module_disable(semanage_handle_t *sh, char *module_name) |
| 901 | { |
| 902 | int rc = -1; |
| 903 | semanage_module_key_t *modkey = NULL; |
| 904 | |
| 905 | rc = semanage_module_key_create(sh, &modkey); |
| 906 | if (rc != 0) |
| 907 | goto exit; |
| 908 | |
| 909 | rc = semanage_module_key_set_name(sh, modkey, module_name); |
| 910 | if (rc != 0) |
| 911 | goto exit; |
| 912 | |
| 913 | rc = semanage_module_set_enabled(sh, modkey, 0); |
| 914 | if (rc != 0) |
| 915 | goto exit; |
| 916 | |
| 917 | rc = 0; |
| 918 | |
| 919 | exit: |
| 920 | semanage_module_key_destroy(sh, modkey); |
| 921 | free(modkey); |
| 922 | |
| 923 | return rc; |
| 924 | } |
| 925 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 926 | /* Converts a string to a priority |
| 927 | * |
| 928 | * returns -1 if str is not a valid priority. |
| 929 | * returns 0 and sets priority if str is a valid priority |
| 930 | */ |
| 931 | int semanage_string_to_priority(const char *str, uint16_t *priority) |
| 932 | { |
| 933 | unsigned long val; |
| 934 | char *endptr = NULL; |
| 935 | int status = -1; |
| 936 | |
| 937 | if (str == NULL || priority == NULL) { |
| 938 | goto exit; |
| 939 | } |
| 940 | |
| 941 | errno = 0; |
| 942 | |
| 943 | val = strtoul(str, &endptr, 10); |
| 944 | |
| 945 | if (errno != 0 || endptr == str || *endptr != '\0' || val > UINT16_MAX) { |
| 946 | goto exit; |
| 947 | } |
| 948 | |
| 949 | if (semanage_module_validate_priority((uint16_t)val) < 0) { |
| 950 | goto exit; |
| 951 | } |
| 952 | |
| 953 | *priority = val; |
| 954 | status = 0; |
| 955 | |
| 956 | exit: |
| 957 | return status; |
| 958 | } |
| 959 | |
| 960 | /* Validates a module info struct. |
| 961 | * |
| 962 | * Returns -1 if module is invalid, 0 otherwise. |
| 963 | */ |
| 964 | int semanage_module_info_validate(const semanage_module_info_t *modinfo) |
| 965 | { |
| 966 | if (semanage_module_validate_priority(modinfo->priority) != 0 || |
| 967 | semanage_module_validate_name(modinfo->name) != 0 || |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 968 | semanage_module_validate_lang_ext(modinfo->lang_ext) != 0 || |
| 969 | semanage_module_validate_enabled(modinfo->enabled) != 0) { |
| 970 | return -1; |
| 971 | } |
| 972 | return 0; |
| 973 | } |
| 974 | |
Caleb Case | 73430e5 | 2009-12-23 18:25:53 -0500 | [diff] [blame] | 975 | #define PRIORITY_MIN 1 |
| 976 | #define PRIORITY_MAX 999 |
| 977 | |
| 978 | /* Validates priority. |
| 979 | * |
| 980 | * returns -1 if priority is not in the valid range, returns 0 otherwise |
| 981 | */ |
| 982 | int semanage_module_validate_priority(uint16_t priority) |
| 983 | { |
| 984 | if (priority >= PRIORITY_MIN && priority <= PRIORITY_MAX) { |
| 985 | return 0; |
| 986 | } |
| 987 | |
| 988 | return -1; |
| 989 | } |
| 990 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 991 | /* Validates module name. |
| 992 | * |
| 993 | * A module name must match one of the following regular expressions |
| 994 | * to be considered valid: |
| 995 | * |
| 996 | * ^[a-zA-Z](\.?[a-zA-Z0-9_-])*$ |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 997 | * |
| 998 | * returns -1 if name is not valid, returns 0 otherwise |
| 999 | */ |
| 1000 | int semanage_module_validate_name(const char * name) |
| 1001 | { |
| 1002 | int status = 0; |
| 1003 | |
| 1004 | if (name == NULL) { |
| 1005 | status = -1; |
| 1006 | goto exit; |
| 1007 | } |
| 1008 | |
Caleb Case | d220f49 | 2009-12-23 18:25:54 -0500 | [diff] [blame] | 1009 | if (!isalpha(*name)) { |
| 1010 | status = -1; |
| 1011 | goto exit; |
| 1012 | } |
| 1013 | |
| 1014 | #define ISVALIDCHAR(c) (isalnum(c) || c == '_' || c == '-') |
| 1015 | |
| 1016 | for (name++; *name; name++) { |
| 1017 | if (ISVALIDCHAR(*name)) { |
| 1018 | continue; |
| 1019 | } |
| 1020 | if (*name == '.' && name++ && ISVALIDCHAR(*name)) { |
| 1021 | continue; |
| 1022 | } |
| 1023 | status = -1; |
| 1024 | goto exit; |
| 1025 | } |
| 1026 | |
| 1027 | #undef ISVALIDCHAR |
| 1028 | |
| 1029 | exit: |
| 1030 | return status; |
| 1031 | } |
| 1032 | |
| 1033 | /* Validates module enabled status. |
| 1034 | * |
| 1035 | * Valid enabled values are 1, 0, and -1. |
| 1036 | * |
| 1037 | * returns 0 if enabled is a valid value, returns -1 otherwise. |
| 1038 | */ |
| 1039 | int semanage_module_validate_enabled(int enabled) |
| 1040 | { |
| 1041 | if (enabled == 1 || enabled == 0 || enabled == -1) { |
| 1042 | return 0; |
| 1043 | } |
| 1044 | |
| 1045 | return -1; |
| 1046 | } |
| 1047 | |
| 1048 | /* Validate extension. |
| 1049 | * |
| 1050 | * An extension must match the following regular expression to be |
| 1051 | * considered valid: |
| 1052 | * |
| 1053 | * ^[a-zA-Z0-9][a-zA-Z0-9_-]*$ |
| 1054 | * |
| 1055 | * returns 0 if ext is a valid value, returns -1 otherwise. |
| 1056 | */ |
| 1057 | int semanage_module_validate_lang_ext(const char *ext) |
| 1058 | { |
| 1059 | int status = 0; |
| 1060 | |
| 1061 | if (ext == NULL) { |
| 1062 | status = -1; |
| 1063 | goto exit; |
| 1064 | } |
| 1065 | |
| 1066 | if (!isalnum(*ext)) { |
| 1067 | status = -1; |
| 1068 | goto exit; |
| 1069 | } |
| 1070 | |
| 1071 | #define ISVALIDCHAR(c) (isalnum(c) || c == '_' || c == '-') |
| 1072 | |
| 1073 | for (ext++; *ext; ext++) { |
| 1074 | if (ISVALIDCHAR(*ext)) { |
| 1075 | continue; |
| 1076 | } |
| 1077 | status = -1; |
| 1078 | goto exit; |
| 1079 | } |
| 1080 | |
| 1081 | #undef ISVALIDCHAR |
| 1082 | |
| 1083 | exit: |
| 1084 | return status; |
| 1085 | } |
| 1086 | |
Caleb Case | d4048fa | 2009-12-23 18:25:55 -0500 | [diff] [blame] | 1087 | int semanage_module_get_module_info(semanage_handle_t *sh, |
| 1088 | const semanage_module_key_t *modkey, |
| 1089 | semanage_module_info_t **modinfo) |
| 1090 | { |
| 1091 | assert(sh); |
| 1092 | assert(modkey); |
| 1093 | assert(modinfo); |
| 1094 | |
| 1095 | if (sh->funcs->get_module_info == NULL) { |
| 1096 | ERR(sh, |
| 1097 | "No get module info function defined for this connection type."); |
| 1098 | return -1; |
| 1099 | } else if (!sh->is_connected) { |
| 1100 | ERR(sh, "Not connected."); |
| 1101 | return -1; |
| 1102 | } |
| 1103 | |
| 1104 | return sh->funcs->get_module_info(sh, modkey, modinfo); |
| 1105 | } |
| 1106 | |
| 1107 | int semanage_module_list_all(semanage_handle_t *sh, |
| 1108 | semanage_module_info_t **modinfos, |
| 1109 | int *modinfos_len) |
| 1110 | { |
| 1111 | assert(sh); |
| 1112 | assert(modinfos); |
| 1113 | assert(modinfos_len); |
| 1114 | |
| 1115 | if (sh->funcs->list_all == NULL) { |
| 1116 | ERR(sh, |
| 1117 | "No list all function defined for this connection type."); |
| 1118 | return -1; |
| 1119 | } else if (!sh->is_connected) { |
| 1120 | ERR(sh, "Not connected."); |
| 1121 | return -1; |
| 1122 | } |
| 1123 | |
| 1124 | return sh->funcs->list_all(sh, modinfos, modinfos_len); |
| 1125 | } |
| 1126 | |
Caleb Case | bb5121e | 2009-12-23 18:25:57 -0500 | [diff] [blame] | 1127 | int semanage_module_install_info(semanage_handle_t *sh, |
| 1128 | const semanage_module_info_t *modinfo, |
| 1129 | char *data, |
| 1130 | size_t data_len) |
| 1131 | { |
| 1132 | if (sh->funcs->install_info == NULL) { |
| 1133 | ERR(sh, |
| 1134 | "No install info function defined for this connection type."); |
| 1135 | return -1; |
| 1136 | } else if (!sh->is_connected) { |
| 1137 | ERR(sh, "Not connected."); |
| 1138 | return -1; |
| 1139 | } else if (!sh->is_in_transaction) { |
| 1140 | if (semanage_begin_transaction(sh) < 0) { |
| 1141 | return -1; |
| 1142 | } |
| 1143 | } |
| 1144 | sh->modules_modified = 1; |
| 1145 | return sh->funcs->install_info(sh, modinfo, data, data_len); |
| 1146 | } |
| 1147 | |
| 1148 | int semanage_module_remove_key(semanage_handle_t *sh, |
| 1149 | const semanage_module_key_t *modkey) |
| 1150 | { |
| 1151 | if (sh->funcs->remove_key== NULL) { |
| 1152 | ERR(sh, |
| 1153 | "No remove key function defined for this connection type."); |
| 1154 | return -1; |
| 1155 | } else if (!sh->is_connected) { |
| 1156 | ERR(sh, "Not connected."); |
| 1157 | return -1; |
| 1158 | } else if (!sh->is_in_transaction) { |
| 1159 | if (semanage_begin_transaction(sh) < 0) { |
| 1160 | return -1; |
| 1161 | } |
| 1162 | } |
| 1163 | sh->modules_modified = 1; |
| 1164 | return sh->funcs->remove_key(sh, modkey); |
| 1165 | } |
| 1166 | |