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
check_passwd(const passwd * pwd,const char * username,uid_t uid,uid_type_t uid_type)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
check_getpwuid(const char * username,uid_t uid,uid_type_t uid_type)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
check_getpwnam(const char * username,uid_t uid,uid_type_t uid_type)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
check_getpwuid_r(const char * username,uid_t uid,uid_type_t uid_type)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
check_getpwnam_r(const char * username,uid_t uid,uid_type_t uid_type)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
check_get_passwd(const char * username,uid_t uid,uid_type_t uid_type)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
check_get_passwd(const char *,uid_t,uid_type_t)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
TEST(getpwnam,system_id_root)113 TEST(getpwnam, system_id_root) {
114 check_get_passwd("root", 0, TYPE_SYSTEM);
115 }
116
TEST(getpwnam,system_id_system)117 TEST(getpwnam, system_id_system) {
118 check_get_passwd("system", 1000, TYPE_SYSTEM);
119 }
120
TEST(getpwnam,app_id_radio)121 TEST(getpwnam, app_id_radio) {
122 check_get_passwd("radio", 1001, TYPE_SYSTEM);
123 }
124
TEST(getpwnam,oem_id_0)125 TEST(getpwnam, oem_id_0) {
126 check_get_passwd("oem_0", 5000, TYPE_SYSTEM);
127 }
128
TEST(getpwnam,oem_id_999)129 TEST(getpwnam, oem_id_999) {
130 check_get_passwd("oem_999", 5999, TYPE_SYSTEM);
131 }
132
TEST(getpwnam,app_id_nobody)133 TEST(getpwnam, app_id_nobody) {
134 check_get_passwd("nobody", 9999, TYPE_SYSTEM);
135 }
136
TEST(getpwnam,app_id_u0_a0)137 TEST(getpwnam, app_id_u0_a0) {
138 check_get_passwd("u0_a0", 10000, TYPE_APP);
139 }
140
TEST(getpwnam,app_id_u0_a1234)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.
TEST(getpwnam,app_id_u0_a49999)146 TEST(getpwnam, app_id_u0_a49999) {
147 check_get_passwd("u0_a49999", 59999, TYPE_APP);
148 }
149
TEST(getpwnam,app_id_u0_i1)150 TEST(getpwnam, app_id_u0_i1) {
151 check_get_passwd("u0_i1", 99001, TYPE_APP);
152 }
153
TEST(getpwnam,app_id_u1_root)154 TEST(getpwnam, app_id_u1_root) {
155 check_get_passwd("u1_root", 100000, TYPE_SYSTEM);
156 }
157
TEST(getpwnam,app_id_u1_radio)158 TEST(getpwnam, app_id_u1_radio) {
159 check_get_passwd("u1_radio", 101001, TYPE_SYSTEM);
160 }
161
TEST(getpwnam,app_id_u1_a0)162 TEST(getpwnam, app_id_u1_a0) {
163 check_get_passwd("u1_a0", 110000, TYPE_APP);
164 }
165
TEST(getpwnam,app_id_u1_a40000)166 TEST(getpwnam, app_id_u1_a40000) {
167 check_get_passwd("u1_a40000", 150000, TYPE_APP);
168 }
169
TEST(getpwnam,app_id_u1_i0)170 TEST(getpwnam, app_id_u1_i0) {
171 check_get_passwd("u1_i0", 199000, TYPE_APP);
172 }
173
check_group(const group * grp,const char * group_name,gid_t gid)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
check_getgrgid(const char * group_name,gid_t gid)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
check_getgrnam(const char * group_name,gid_t gid)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
check_getgrgid_r(const char * group_name,gid_t gid)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
check_getgrnam_r(const char * group_name,gid_t gid)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
check_get_group(const char * group_name,gid_t gid)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
print_no_getgrnam_test_info()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
check_get_group(const char *,gid_t)240 static void check_get_group(const char*, gid_t) {
241 print_no_getgrnam_test_info();
242 }
243
244 #endif
245
TEST(getgrnam,system_id_root)246 TEST(getgrnam, system_id_root) {
247 check_get_group("root", 0);
248 }
249
TEST(getgrnam,system_id_system)250 TEST(getgrnam, system_id_system) {
251 check_get_group("system", 1000);
252 }
253
TEST(getgrnam,app_id_radio)254 TEST(getgrnam, app_id_radio) {
255 check_get_group("radio", 1001);
256 }
257
TEST(getgrnam,oem_id_0)258 TEST(getgrnam, oem_id_0) {
259 check_get_group("oem_0", 5000);
260 }
261
TEST(getgrnam,oem_id_999)262 TEST(getgrnam, oem_id_999) {
263 check_get_group("oem_999", 5999);
264 }
265
TEST(getgrnam,app_id_nobody)266 TEST(getgrnam, app_id_nobody) {
267 check_get_group("nobody", 9999);
268 }
269
TEST(getgrnam,app_id_u0_a0)270 TEST(getgrnam, app_id_u0_a0) {
271 check_get_group("u0_a0", 10000);
272 }
273
TEST(getgrnam,app_id_u0_a1234)274 TEST(getgrnam, app_id_u0_a1234) {
275 check_get_group("u0_a1234", 11234);
276 }
277
TEST(getgrnam,app_id_u0_a9999)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.
TEST(getgrnam,app_id_all_a9999)283 TEST(getgrnam, app_id_all_a9999) {
284 check_get_group("all_a9999", 59999);
285 }
286
TEST(getgrnam,app_id_u0_i1)287 TEST(getgrnam, app_id_u0_i1) {
288 check_get_group("u0_i1", 99001);
289 }
290
TEST(getgrnam,app_id_u1_root)291 TEST(getgrnam, app_id_u1_root) {
292 check_get_group("u1_root", 100000);
293 }
294
TEST(getgrnam,app_id_u1_radio)295 TEST(getgrnam, app_id_u1_radio) {
296 check_get_group("u1_radio", 101001);
297 }
298
TEST(getgrnam,app_id_u1_a0)299 TEST(getgrnam, app_id_u1_a0) {
300 check_get_group("u1_a0", 110000);
301 }
302
TEST(getgrnam,app_id_u1_a40000)303 TEST(getgrnam, app_id_u1_a40000) {
304 check_get_group("u1_a40000", 150000);
305 }
306
TEST(getgrnam,app_id_u1_i0)307 TEST(getgrnam, app_id_u1_i0) {
308 check_get_group("u1_i0", 199000);
309 }
310
TEST(getgrnam_r,reentrancy)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
TEST(getgrgid_r,reentrancy)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
TEST(getgrnam_r,large_enough_suggested_buffer_size)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