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 enum uid_type_t { 30 TYPE_SYSTEM, 31 TYPE_APP 32 }; 33 34 #if defined(__BIONIC__) 35 36 static void check_passwd(const passwd* pwd, const char* username, uid_t uid, uid_type_t uid_type) { 37 ASSERT_TRUE(pwd != NULL); 38 ASSERT_STREQ(username, pwd->pw_name); 39 ASSERT_EQ(uid, pwd->pw_uid); 40 ASSERT_EQ(uid, pwd->pw_gid); 41 ASSERT_EQ(NULL, pwd->pw_passwd); 42 #ifdef __LP64__ 43 ASSERT_EQ(NULL, pwd->pw_gecos); 44 #endif 45 46 if (uid_type == TYPE_SYSTEM) { 47 ASSERT_STREQ("/", pwd->pw_dir); 48 } else { 49 ASSERT_STREQ("/data", pwd->pw_dir); 50 } 51 ASSERT_STREQ("/system/bin/sh", pwd->pw_shell); 52 } 53 54 static void check_getpwuid(const char* username, uid_t uid, uid_type_t uid_type) { 55 errno = 0; 56 passwd* pwd = getpwuid(uid); 57 ASSERT_EQ(0, errno); 58 SCOPED_TRACE("getpwuid"); 59 check_passwd(pwd, username, uid, uid_type); 60 } 61 62 static void check_getpwnam(const char* username, uid_t uid, uid_type_t uid_type) { 63 errno = 0; 64 passwd* pwd = getpwnam(username); 65 ASSERT_EQ(0, errno); 66 SCOPED_TRACE("getpwnam"); 67 check_passwd(pwd, username, uid, uid_type); 68 } 69 70 static void check_getpwuid_r(const char* username, uid_t uid, uid_type_t uid_type) { 71 passwd pwd_storage; 72 char buf[512]; 73 int result; 74 75 errno = 0; 76 passwd* pwd = NULL; 77 result = getpwuid_r(uid, &pwd_storage, buf, sizeof(buf), &pwd); 78 ASSERT_EQ(0, result); 79 ASSERT_EQ(0, errno); 80 SCOPED_TRACE("getpwuid_r"); 81 check_passwd(pwd, username, uid, uid_type); 82 } 83 84 static void check_getpwnam_r(const char* username, uid_t uid, uid_type_t uid_type) { 85 passwd pwd_storage; 86 char buf[512]; 87 int result; 88 89 errno = 0; 90 passwd* pwd = NULL; 91 result = getpwnam_r(username, &pwd_storage, buf, sizeof(buf), &pwd); 92 ASSERT_EQ(0, result); 93 ASSERT_EQ(0, errno); 94 SCOPED_TRACE("getpwnam_r"); 95 check_passwd(pwd, username, uid, uid_type); 96 } 97 98 static void check_get_passwd(const char* username, uid_t uid, uid_type_t uid_type) { 99 check_getpwuid(username, uid, uid_type); 100 check_getpwnam(username, uid, uid_type); 101 check_getpwuid_r(username, uid, uid_type); 102 check_getpwnam_r(username, uid, uid_type); 103 } 104 105 #else // !defined(__BIONIC__) 106 107 static void check_get_passwd(const char* /* username */, uid_t /* uid */, uid_type_t /* uid_type */) { 108 GTEST_LOG_(INFO) << "This test is about uid/username translation for Android, which does nothing on libc other than bionic.\n"; 109 } 110 111 #endif 112 113 TEST(getpwnam, system_id_root) { 114 check_get_passwd("root", 0, TYPE_SYSTEM); 115 } 116 117 TEST(getpwnam, system_id_system) { 118 check_get_passwd("system", 1000, TYPE_SYSTEM); 119 } 120 121 TEST(getpwnam, app_id_radio) { 122 check_get_passwd("radio", 1001, TYPE_SYSTEM); 123 } 124 125 TEST(getpwnam, oem_id_0) { 126 check_get_passwd("oem_0", 5000, TYPE_SYSTEM); 127 } 128 129 TEST(getpwnam, oem_id_999) { 130 check_get_passwd("oem_999", 5999, TYPE_SYSTEM); 131 } 132 133 TEST(getpwnam, app_id_nobody) { 134 check_get_passwd("nobody", 9999, TYPE_SYSTEM); 135 } 136 137 TEST(getpwnam, app_id_u0_a0) { 138 check_get_passwd("u0_a0", 10000, TYPE_APP); 139 } 140 141 TEST(getpwnam, app_id_u0_a1234) { 142 check_get_passwd("u0_a1234", 11234, TYPE_APP); 143 } 144 145 // Test the difference between uid and shared gid. 146 TEST(getpwnam, app_id_u0_a49999) { 147 check_get_passwd("u0_a49999", 59999, TYPE_APP); 148 } 149 150 TEST(getpwnam, app_id_u0_i1) { 151 check_get_passwd("u0_i1", 99001, TYPE_APP); 152 } 153 154 TEST(getpwnam, app_id_u1_root) { 155 check_get_passwd("u1_root", 100000, TYPE_SYSTEM); 156 } 157 158 TEST(getpwnam, app_id_u1_radio) { 159 check_get_passwd("u1_radio", 101001, TYPE_SYSTEM); 160 } 161 162 TEST(getpwnam, app_id_u1_a0) { 163 check_get_passwd("u1_a0", 110000, TYPE_APP); 164 } 165 166 TEST(getpwnam, app_id_u1_a40000) { 167 check_get_passwd("u1_a40000", 150000, TYPE_APP); 168 } 169 170 TEST(getpwnam, app_id_u1_i0) { 171 check_get_passwd("u1_i0", 199000, TYPE_APP); 172 } 173 174 static void check_group(const group* grp, const char* group_name, gid_t gid) { 175 ASSERT_TRUE(grp != NULL); 176 ASSERT_STREQ(group_name, grp->gr_name); 177 ASSERT_EQ(gid, grp->gr_gid); 178 ASSERT_TRUE(grp->gr_mem != NULL); 179 ASSERT_STREQ(group_name, grp->gr_mem[0]); 180 ASSERT_TRUE(grp->gr_mem[1] == NULL); 181 } 182 183 #if defined(__BIONIC__) 184 185 static void check_getgrgid(const char* group_name, gid_t gid) { 186 errno = 0; 187 group* grp = getgrgid(gid); 188 ASSERT_EQ(0, errno); 189 SCOPED_TRACE("getgrgid"); 190 check_group(grp, group_name, gid); 191 } 192 193 static void check_getgrnam(const char* group_name, gid_t gid) { 194 errno = 0; 195 group* grp = getgrnam(group_name); 196 ASSERT_EQ(0, errno); 197 SCOPED_TRACE("getgrnam"); 198 check_group(grp, group_name, gid); 199 } 200 201 static void check_getgrgid_r(const char* group_name, gid_t gid) { 202 group grp_storage; 203 char buf[512]; 204 group* grp; 205 206 errno = 0; 207 int result = getgrgid_r(gid, &grp_storage, buf, sizeof(buf), &grp); 208 ASSERT_EQ(0, result); 209 ASSERT_EQ(0, errno); 210 SCOPED_TRACE("getgrgid_r"); 211 check_group(grp, group_name, gid); 212 } 213 214 static void check_getgrnam_r(const char* group_name, gid_t gid) { 215 group grp_storage; 216 char buf[512]; 217 group* grp; 218 219 errno = 0; 220 int result = getgrnam_r(group_name, &grp_storage, buf, sizeof(buf), &grp); 221 ASSERT_EQ(0, result); 222 ASSERT_EQ(0, errno); 223 SCOPED_TRACE("getgrnam_r"); 224 check_group(grp, group_name, gid); 225 } 226 227 static void check_get_group(const char* group_name, gid_t gid) { 228 check_getgrgid(group_name, gid); 229 check_getgrnam(group_name, gid); 230 check_getgrgid_r(group_name, gid); 231 check_getgrnam_r(group_name, gid); 232 } 233 234 #else // !defined(__BIONIC__) 235 236 static void print_no_getgrnam_test_info() { 237 GTEST_LOG_(INFO) << "This test is about gid/group_name translation for Android, which does nothing on libc other than bionic.\n"; 238 } 239 240 static void check_get_group(const char*, gid_t) { 241 print_no_getgrnam_test_info(); 242 } 243 244 #endif 245 246 TEST(getgrnam, system_id_root) { 247 check_get_group("root", 0); 248 } 249 250 TEST(getgrnam, system_id_system) { 251 check_get_group("system", 1000); 252 } 253 254 TEST(getgrnam, app_id_radio) { 255 check_get_group("radio", 1001); 256 } 257 258 TEST(getgrnam, oem_id_0) { 259 check_get_group("oem_0", 5000); 260 } 261 262 TEST(getgrnam, oem_id_999) { 263 check_get_group("oem_999", 5999); 264 } 265 266 TEST(getgrnam, app_id_nobody) { 267 check_get_group("nobody", 9999); 268 } 269 270 TEST(getgrnam, app_id_u0_a0) { 271 check_get_group("u0_a0", 10000); 272 } 273 274 TEST(getgrnam, app_id_u0_a1234) { 275 check_get_group("u0_a1234", 11234); 276 } 277 278 TEST(getgrnam, app_id_u0_a9999) { 279 check_get_group("u0_a9999", 19999); 280 } 281 282 // Test the difference between uid and shared gid. 283 TEST(getgrnam, app_id_all_a9999) { 284 check_get_group("all_a9999", 59999); 285 } 286 287 TEST(getgrnam, app_id_u0_i1) { 288 check_get_group("u0_i1", 99001); 289 } 290 291 TEST(getgrnam, app_id_u1_root) { 292 check_get_group("u1_root", 100000); 293 } 294 295 TEST(getgrnam, app_id_u1_radio) { 296 check_get_group("u1_radio", 101001); 297 } 298 299 TEST(getgrnam, app_id_u1_a0) { 300 check_get_group("u1_a0", 110000); 301 } 302 303 TEST(getgrnam, app_id_u1_a40000) { 304 check_get_group("u1_a40000", 150000); 305 } 306 307 TEST(getgrnam, app_id_u1_i0) { 308 check_get_group("u1_i0", 199000); 309 } 310 311 TEST(getgrnam_r, reentrancy) { 312 #if defined(__BIONIC__) 313 group grp_storage[2]; 314 char buf[2][512]; 315 group* grp[3]; 316 int result = getgrnam_r("root", &grp_storage[0], buf[0], sizeof(buf[0]), &grp[0]); 317 ASSERT_EQ(0, result); 318 check_group(grp[0], "root", 0); 319 grp[1] = getgrnam("system"); 320 check_group(grp[1], "system", 1000); 321 result = getgrnam_r("radio", &grp_storage[1], buf[1], sizeof(buf[1]), &grp[2]); 322 ASSERT_EQ(0, result); 323 check_group(grp[2], "radio", 1001); 324 check_group(grp[0], "root", 0); 325 check_group(grp[1], "system", 1000); 326 #else 327 print_no_getgrnam_test_info(); 328 #endif 329 } 330 331 TEST(getgrgid_r, reentrancy) { 332 #if defined(__BIONIC__) 333 group grp_storage[2]; 334 char buf[2][512]; 335 group* grp[3]; 336 int result = getgrgid_r(0, &grp_storage[0], buf[0], sizeof(buf[0]), &grp[0]); 337 ASSERT_EQ(0, result); 338 check_group(grp[0], "root", 0); 339 grp[1] = getgrgid(1000); 340 check_group(grp[1], "system", 1000); 341 result = getgrgid_r(1001, &grp_storage[1], buf[1], sizeof(buf[1]), &grp[2]); 342 ASSERT_EQ(0, result); 343 check_group(grp[2], "radio", 1001); 344 check_group(grp[0], "root", 0); 345 check_group(grp[1], "system", 1000); 346 #else 347 print_no_getgrnam_test_info(); 348 #endif 349 } 350 351 TEST(getgrnam_r, large_enough_suggested_buffer_size) { 352 long size = sysconf(_SC_GETGR_R_SIZE_MAX); 353 ASSERT_GT(size, 0); 354 char buf[size]; 355 group grp_storage; 356 group* grp; 357 ASSERT_EQ(0, getgrnam_r("root", &grp_storage, buf, size, &grp)); 358 check_group(grp, "root", 0); 359 } 360
