1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 19 // Below are the header files we want to test. 20 #include <grp.h> 21 #include <pwd.h> 22 23 #include <errno.h> 24 #include <limits.h> 25 #include <sys/cdefs.h> 26 #include <sys/types.h> 27 #include <unistd.h> 28 29 #include <bitset> 30 31 #include <private/android_filesystem_config.h> 32 33 // Generated android_ids array 34 #include "generated_android_ids.h" 35 36 enum uid_type_t { 37 TYPE_SYSTEM, 38 TYPE_APP 39 }; 40 41 #if defined(__BIONIC__) 42 43 static void check_passwd(const passwd* pwd, const char* username, uid_t uid, uid_type_t uid_type) { 44 ASSERT_TRUE(pwd != NULL); 45 ASSERT_STREQ(username, pwd->pw_name); 46 ASSERT_EQ(uid, pwd->pw_uid); 47 ASSERT_EQ(uid, pwd->pw_gid); 48 ASSERT_EQ(NULL, pwd->pw_passwd); 49 #ifdef __LP64__ 50 ASSERT_EQ(NULL, pwd->pw_gecos); 51 #endif 52 53 if (uid_type == TYPE_SYSTEM) { 54 ASSERT_STREQ("/", pwd->pw_dir); 55 } else { 56 ASSERT_STREQ("/data", pwd->pw_dir); 57 } 58 ASSERT_STREQ("/system/bin/sh", pwd->pw_shell); 59 } 60 61 static void check_getpwuid(const char* username, uid_t uid, uid_type_t uid_type) { 62 errno = 0; 63 passwd* pwd = getpwuid(uid); 64 ASSERT_EQ(0, errno); 65 SCOPED_TRACE("getpwuid"); 66 check_passwd(pwd, username, uid, uid_type); 67 } 68 69 static void check_getpwnam(const char* username, uid_t uid, uid_type_t uid_type) { 70 errno = 0; 71 passwd* pwd = getpwnam(username); 72 ASSERT_EQ(0, errno); 73 SCOPED_TRACE("getpwnam"); 74 check_passwd(pwd, username, uid, uid_type); 75 } 76 77 static void check_getpwuid_r(const char* username, uid_t uid, uid_type_t uid_type) { 78 passwd pwd_storage; 79 char buf[512]; 80 int result; 81 82 errno = 0; 83 passwd* pwd = NULL; 84 result = getpwuid_r(uid, &pwd_storage, buf, sizeof(buf), &pwd); 85 ASSERT_EQ(0, result); 86 ASSERT_EQ(0, errno); 87 SCOPED_TRACE("getpwuid_r"); 88 check_passwd(pwd, username, uid, uid_type); 89 } 90 91 static void check_getpwnam_r(const char* username, uid_t uid, uid_type_t uid_type) { 92 passwd pwd_storage; 93 char buf[512]; 94 int result; 95 96 errno = 0; 97 passwd* pwd = NULL; 98 result = getpwnam_r(username, &pwd_storage, buf, sizeof(buf), &pwd); 99 ASSERT_EQ(0, result); 100 ASSERT_EQ(0, errno); 101 SCOPED_TRACE("getpwnam_r"); 102 check_passwd(pwd, username, uid, uid_type); 103 } 104 105 static void check_get_passwd(const char* username, uid_t uid, uid_type_t uid_type) { 106 check_getpwuid(username, uid, uid_type); 107 check_getpwnam(username, uid, uid_type); 108 check_getpwuid_r(username, uid, uid_type); 109 check_getpwnam_r(username, uid, uid_type); 110 } 111 112 #else // !defined(__BIONIC__) 113 114 static void check_get_passwd(const char* /* username */, uid_t /* uid */, uid_type_t /* uid_type */) { 115 GTEST_LOG_(INFO) << "This test is about uid/username translation for Android, which does nothing on libc other than bionic.\n"; 116 } 117 118 #endif 119 120 TEST(pwd, getpwnam_system_id_root) { 121 check_get_passwd("root", 0, TYPE_SYSTEM); 122 } 123 124 TEST(pwd, getpwnam_system_id_system) { 125 check_get_passwd("system", 1000, TYPE_SYSTEM); 126 } 127 128 TEST(pwd, getpwnam_app_id_radio) { 129 check_get_passwd("radio", 1001, TYPE_SYSTEM); 130 } 131 132 TEST(pwd, getpwnam_oem_id_5000) { 133 check_get_passwd("oem_5000", 5000, TYPE_SYSTEM); 134 } 135 136 TEST(pwd, getpwnam_oem_id_5999) { 137 check_get_passwd("oem_5999", 5999, TYPE_SYSTEM); 138 } 139 140 TEST(pwd, getpwnam_oem_id_2900) { 141 check_get_passwd("oem_2900", 2900, TYPE_SYSTEM); 142 } 143 144 TEST(pwd, getpwnam_oem_id_2999) { 145 check_get_passwd("oem_2999", 2999, TYPE_SYSTEM); 146 } 147 148 TEST(pwd, getpwnam_app_id_nobody) { 149 check_get_passwd("nobody", 9999, TYPE_SYSTEM); 150 } 151 152 TEST(pwd, getpwnam_app_id_u0_a0) { 153 check_get_passwd("u0_a0", 10000, TYPE_APP); 154 } 155 156 TEST(pwd, getpwnam_app_id_u0_a1234) { 157 check_get_passwd("u0_a1234", 11234, TYPE_APP); 158 } 159 160 // Test the difference between uid and shared gid. 161 TEST(pwd, getpwnam_app_id_u0_a49999) { 162 check_get_passwd("u0_a49999", 59999, TYPE_APP); 163 } 164 165 TEST(pwd, getpwnam_app_id_u0_i1) { 166 check_get_passwd("u0_i1", 99001, TYPE_APP); 167 } 168 169 TEST(pwd, getpwnam_app_id_u1_root) { 170 check_get_passwd("u1_root", 100000, TYPE_SYSTEM); 171 } 172 173 TEST(pwd, getpwnam_app_id_u1_radio) { 174 check_get_passwd("u1_radio", 101001, TYPE_SYSTEM); 175 } 176 177 TEST(pwd, getpwnam_app_id_u1_a0) { 178 check_get_passwd("u1_a0", 110000, TYPE_APP); 179 } 180 181 TEST(pwd, getpwnam_app_id_u1_a40000) { 182 check_get_passwd("u1_a40000", 150000, TYPE_APP); 183 } 184 185 TEST(pwd, getpwnam_app_id_u1_i0) { 186 check_get_passwd("u1_i0", 199000, TYPE_APP); 187 } 188 189 TEST(pwd, getpwent_iterate) { 190 passwd* pwd; 191 std::bitset<10000> exist; 192 bool application = false; 193 194 exist.reset(); 195 196 setpwent(); 197 while ((pwd = getpwent()) != NULL) { 198 ASSERT_TRUE(NULL != pwd->pw_name); 199 ASSERT_EQ(pwd->pw_gid, pwd->pw_uid); 200 ASSERT_EQ(NULL, pwd->pw_passwd); 201 #ifdef __LP64__ 202 ASSERT_TRUE(NULL == pwd->pw_gecos); 203 #endif 204 ASSERT_TRUE(NULL != pwd->pw_shell); 205 if (pwd->pw_uid >= exist.size()) { 206 ASSERT_STREQ("/data", pwd->pw_dir); 207 application = true; 208 } else { 209 ASSERT_STREQ("/", pwd->pw_dir); 210 ASSERT_FALSE(exist[pwd->pw_uid]); 211 exist[pwd->pw_uid] = true; 212 } 213 } 214 endpwent(); 215 216 // Required content 217 for (size_t n = 0; n < android_id_count; ++n) { 218 ASSERT_TRUE(exist[android_ids[n].aid]); 219 } 220 for (size_t n = 2900; n < 2999; ++n) { 221 ASSERT_TRUE(exist[n]); 222 } 223 for (size_t n = 5000; n < 5999; ++n) { 224 ASSERT_TRUE(exist[n]); 225 } 226 ASSERT_TRUE(application); 227 } 228 229 static void check_group(const group* grp, const char* group_name, gid_t gid) { 230 ASSERT_TRUE(grp != NULL); 231 ASSERT_STREQ(group_name, grp->gr_name); 232 ASSERT_EQ(gid, grp->gr_gid); 233 ASSERT_TRUE(grp->gr_mem != NULL); 234 ASSERT_STREQ(group_name, grp->gr_mem[0]); 235 ASSERT_TRUE(grp->gr_mem[1] == NULL); 236 } 237 238 #if defined(__BIONIC__) 239 240 static void check_getgrgid(const char* group_name, gid_t gid) { 241 errno = 0; 242 group* grp = getgrgid(gid); 243 ASSERT_EQ(0, errno); 244 SCOPED_TRACE("getgrgid"); 245 check_group(grp, group_name, gid); 246 } 247 248 static void check_getgrnam(const char* group_name, gid_t gid) { 249 errno = 0; 250 group* grp = getgrnam(group_name); 251 ASSERT_EQ(0, errno); 252 SCOPED_TRACE("getgrnam"); 253 check_group(grp, group_name, gid); 254 } 255 256 static void check_getgrgid_r(const char* group_name, gid_t gid) { 257 group grp_storage; 258 char buf[512]; 259 group* grp; 260 261 errno = 0; 262 int result = getgrgid_r(gid, &grp_storage, buf, sizeof(buf), &grp); 263 ASSERT_EQ(0, result); 264 ASSERT_EQ(0, errno); 265 SCOPED_TRACE("getgrgid_r"); 266 check_group(grp, group_name, gid); 267 } 268 269 static void check_getgrnam_r(const char* group_name, gid_t gid) { 270 group grp_storage; 271 char buf[512]; 272 group* grp; 273 274 errno = 0; 275 int result = getgrnam_r(group_name, &grp_storage, buf, sizeof(buf), &grp); 276 ASSERT_EQ(0, result); 277 ASSERT_EQ(0, errno); 278 SCOPED_TRACE("getgrnam_r"); 279 check_group(grp, group_name, gid); 280 } 281 282 static void check_get_group(const char* group_name, gid_t gid) { 283 check_getgrgid(group_name, gid); 284 check_getgrnam(group_name, gid); 285 check_getgrgid_r(group_name, gid); 286 check_getgrnam_r(group_name, gid); 287 } 288 289 #else // !defined(__BIONIC__) 290 291 static void print_no_getgrnam_test_info() { 292 GTEST_LOG_(INFO) << "This test is about gid/group_name translation for Android, which does nothing on libc other than bionic.\n"; 293 } 294 295 static void check_get_group(const char*, gid_t) { 296 print_no_getgrnam_test_info(); 297 } 298 299 #endif 300 301 TEST(grp, getgrnam_system_id_root) { 302 check_get_group("root", 0); 303 } 304 305 TEST(grp, getgrnam_system_id_system) { 306 check_get_group("system", 1000); 307 } 308 309 TEST(grp, getgrnam_app_id_radio) { 310 check_get_group("radio", 1001); 311 } 312 313 TEST(grp, getgrnam_oem_id_5000) { 314 check_get_group("oem_5000", 5000); 315 } 316 317 TEST(grp, getgrnam_oem_id_5999) { 318 check_get_group("oem_5999", 5999); 319 } 320 321 TEST(grp, getgrnam_oem_id_2900) { 322 check_get_group("oem_2900", 2900); 323 } 324 325 TEST(grp, getgrnam_oem_id_2999) { 326 check_get_group("oem_2999", 2999); 327 } 328 329 TEST(grp, getgrnam_app_id_nobody) { 330 check_get_group("nobody", 9999); 331 } 332 333 TEST(grp, getgrnam_app_id_u0_a0) { 334 check_get_group("u0_a0", 10000); 335 } 336 337 TEST(grp, getgrnam_app_id_u0_a1234) { 338 check_get_group("u0_a1234", 11234); 339 } 340 341 TEST(grp, getgrnam_app_id_u0_a9999) { 342 check_get_group("u0_a9999", 19999); 343 } 344 345 TEST(getgrnam, app_id_u0_a0_cache) { 346 check_get_group("u0_a0_cache", 20000); 347 } 348 349 TEST(getgrnam, app_id_u0_a1234_cache) { 350 check_get_group("u0_a1234_cache", 21234); 351 } 352 353 TEST(getgrnam, app_id_u0_a9999_cache) { 354 check_get_group("u0_a9999_cache", 29999); 355 } 356 357 TEST(getgrnam, app_id_u10_a1234_cache) { 358 check_get_group("u10_a1234_cache", 1021234); 359 } 360 361 // Test the difference between uid and shared gid. 362 TEST(grp, getgrnam_app_id_all_a9999) { 363 check_get_group("all_a9999", 59999); 364 } 365 366 TEST(grp, getgrnam_app_id_u0_i1) { 367 check_get_group("u0_i1", 99001); 368 } 369 370 TEST(grp, getgrnam_app_id_u1_root) { 371 check_get_group("u1_root", 100000); 372 } 373 374 TEST(grp, getgrnam_app_id_u1_radio) { 375 check_get_group("u1_radio", 101001); 376 } 377 378 TEST(grp, getgrnam_app_id_u1_a0) { 379 check_get_group("u1_a0", 110000); 380 } 381 382 TEST(grp, getgrnam_app_id_u1_a40000) { 383 check_get_group("u1_a40000", 150000); 384 } 385 386 TEST(grp, getgrnam_app_id_u1_i0) { 387 check_get_group("u1_i0", 199000); 388 } 389 390 TEST(grp, getgrnam_r_reentrancy) { 391 #if defined(__BIONIC__) 392 group grp_storage[2]; 393 char buf[2][512]; 394 group* grp[3]; 395 int result = getgrnam_r("root", &grp_storage[0], buf[0], sizeof(buf[0]), &grp[0]); 396 ASSERT_EQ(0, result); 397 check_group(grp[0], "root", 0); 398 grp[1] = getgrnam("system"); 399 check_group(grp[1], "system", 1000); 400 result = getgrnam_r("radio", &grp_storage[1], buf[1], sizeof(buf[1]), &grp[2]); 401 ASSERT_EQ(0, result); 402 check_group(grp[2], "radio", 1001); 403 check_group(grp[0], "root", 0); 404 check_group(grp[1], "system", 1000); 405 #else 406 print_no_getgrnam_test_info(); 407 #endif 408 } 409 410 TEST(grp, getgrgid_r_reentrancy) { 411 #if defined(__BIONIC__) 412 group grp_storage[2]; 413 char buf[2][512]; 414 group* grp[3]; 415 int result = getgrgid_r(0, &grp_storage[0], buf[0], sizeof(buf[0]), &grp[0]); 416 ASSERT_EQ(0, result); 417 check_group(grp[0], "root", 0); 418 grp[1] = getgrgid(1000); 419 check_group(grp[1], "system", 1000); 420 result = getgrgid_r(1001, &grp_storage[1], buf[1], sizeof(buf[1]), &grp[2]); 421 ASSERT_EQ(0, result); 422 check_group(grp[2], "radio", 1001); 423 check_group(grp[0], "root", 0); 424 check_group(grp[1], "system", 1000); 425 #else 426 print_no_getgrnam_test_info(); 427 #endif 428 } 429 430 TEST(grp, getgrnam_r_large_enough_suggested_buffer_size) { 431 long size = sysconf(_SC_GETGR_R_SIZE_MAX); 432 ASSERT_GT(size, 0); 433 char buf[size]; 434 group grp_storage; 435 group* grp; 436 ASSERT_EQ(0, getgrnam_r("root", &grp_storage, buf, size, &grp)); 437 check_group(grp, "root", 0); 438 } 439 440 TEST(grp, getgrent_iterate) { 441 group* grp; 442 std::bitset<10000> exist; 443 bool application = false; 444 445 exist.reset(); 446 447 setgrent(); 448 while ((grp = getgrent()) != NULL) { 449 ASSERT_TRUE(grp->gr_name != NULL); 450 ASSERT_TRUE(grp->gr_mem != NULL); 451 ASSERT_STREQ(grp->gr_name, grp->gr_mem[0]); 452 ASSERT_TRUE(grp->gr_mem[1] == NULL); 453 if (grp->gr_gid >= exist.size()) { 454 application = true; 455 } else { 456 ASSERT_FALSE(exist[grp->gr_gid]); 457 exist[grp->gr_gid] = true; 458 } 459 } 460 endgrent(); 461 462 // Required content 463 for (size_t n = 0; n < android_id_count; ++n) { 464 ASSERT_TRUE(exist[android_ids[n].aid]); 465 } 466 for (size_t n = 2900; n < 2999; ++n) { 467 ASSERT_TRUE(exist[n]); 468 } 469 for (size_t n = 5000; n < 5999; ++n) { 470 ASSERT_TRUE(exist[n]); 471 } 472 ASSERT_TRUE(application); 473 } 474
