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,app_id_nobody)125 TEST(getpwnam, app_id_nobody) {
126 check_get_passwd("nobody", 9999, TYPE_SYSTEM);
127 }
128
TEST(getpwnam,app_id_u0_a0)129 TEST(getpwnam, app_id_u0_a0) {
130 check_get_passwd("u0_a0", 10000, TYPE_APP);
131 }
132
TEST(getpwnam,app_id_u0_a1234)133 TEST(getpwnam, app_id_u0_a1234) {
134 check_get_passwd("u0_a1234", 11234, TYPE_APP);
135 }
136
137 // Test the difference between uid and shared gid.
TEST(getpwnam,app_id_u0_a49999)138 TEST(getpwnam, app_id_u0_a49999) {
139 check_get_passwd("u0_a49999", 59999, TYPE_APP);
140 }
141
TEST(getpwnam,app_id_u0_i1)142 TEST(getpwnam, app_id_u0_i1) {
143 check_get_passwd("u0_i1", 99001, TYPE_APP);
144 }
145
TEST(getpwnam,app_id_u1_root)146 TEST(getpwnam, app_id_u1_root) {
147 check_get_passwd("u1_root", 100000, TYPE_SYSTEM);
148 }
149
TEST(getpwnam,app_id_u1_radio)150 TEST(getpwnam, app_id_u1_radio) {
151 check_get_passwd("u1_radio", 101001, TYPE_SYSTEM);
152 }
153
TEST(getpwnam,app_id_u1_a0)154 TEST(getpwnam, app_id_u1_a0) {
155 check_get_passwd("u1_a0", 110000, TYPE_APP);
156 }
157
TEST(getpwnam,app_id_u1_a40000)158 TEST(getpwnam, app_id_u1_a40000) {
159 check_get_passwd("u1_a40000", 150000, TYPE_APP);
160 }
161
TEST(getpwnam,app_id_u1_i0)162 TEST(getpwnam, app_id_u1_i0) {
163 check_get_passwd("u1_i0", 199000, TYPE_APP);
164 }
165
166 #if defined(__BIONIC__)
167
check_group(const group * grp,const char * group_name,gid_t gid)168 static void check_group(const group* grp, const char* group_name, gid_t gid) {
169 ASSERT_TRUE(grp != NULL);
170 ASSERT_STREQ(group_name, grp->gr_name);
171 ASSERT_EQ(gid, grp->gr_gid);
172 ASSERT_TRUE(grp->gr_mem != NULL);
173 ASSERT_STREQ(group_name, grp->gr_mem[0]);
174 ASSERT_TRUE(grp->gr_mem[1] == NULL);
175 }
176
check_getgrgid(const char * group_name,gid_t gid)177 static void check_getgrgid(const char* group_name, gid_t gid) {
178 errno = 0;
179 group* grp = getgrgid(gid);
180 ASSERT_EQ(0, errno);
181 SCOPED_TRACE("getgrgid");
182 check_group(grp, group_name, gid);
183 }
184
check_getgrnam(const char * group_name,gid_t gid)185 static void check_getgrnam(const char* group_name, gid_t gid) {
186 errno = 0;
187 group* grp = getgrnam(group_name);
188 ASSERT_EQ(0, errno);
189 SCOPED_TRACE("getgrnam");
190 check_group(grp, group_name, gid);
191 }
192
check_get_group(const char * group_name,gid_t gid)193 static void check_get_group(const char* group_name, gid_t gid) {
194 check_getgrgid(group_name, gid);
195 check_getgrnam(group_name, gid);
196 }
197
198 #else // !defined(__BIONIC__)
199
check_get_group(const char *,gid_t)200 static void check_get_group(const char* /* group_name */, gid_t /* gid */) {
201 GTEST_LOG_(INFO) << "This test is about gid/group_name translation for Android, which does nothing on libc other than bionic.\n";
202 }
203
204 #endif
205
TEST(getgrnam,system_id_root)206 TEST(getgrnam, system_id_root) {
207 check_get_group("root", 0);
208 }
209
TEST(getgrnam,system_id_system)210 TEST(getgrnam, system_id_system) {
211 check_get_group("system", 1000);
212 }
213
TEST(getgrnam,app_id_radio)214 TEST(getgrnam, app_id_radio) {
215 check_get_group("radio", 1001);
216 }
217
TEST(getgrnam,app_id_nobody)218 TEST(getgrnam, app_id_nobody) {
219 check_get_group("nobody", 9999);
220 }
221
TEST(getgrnam,app_id_u0_a0)222 TEST(getgrnam, app_id_u0_a0) {
223 check_get_group("u0_a0", 10000);
224 }
225
TEST(getgrnam,app_id_u0_a1234)226 TEST(getgrnam, app_id_u0_a1234) {
227 check_get_group("u0_a1234", 11234);
228 }
229
TEST(getgrnam,app_id_u0_a9999)230 TEST(getgrnam, app_id_u0_a9999) {
231 check_get_group("u0_a9999", 19999);
232 }
233
234 // Test the difference between uid and shared gid.
TEST(getgrnam,app_id_all_a9999)235 TEST(getgrnam, app_id_all_a9999) {
236 check_get_group("all_a9999", 59999);
237 }
238
TEST(getgrnam,app_id_u0_i1)239 TEST(getgrnam, app_id_u0_i1) {
240 check_get_group("u0_i1", 99001);
241 }
242
TEST(getgrnam,app_id_u1_root)243 TEST(getgrnam, app_id_u1_root) {
244 check_get_group("u1_root", 100000);
245 }
246
TEST(getgrnam,app_id_u1_radio)247 TEST(getgrnam, app_id_u1_radio) {
248 check_get_group("u1_radio", 101001);
249 }
250
TEST(getgrnam,app_id_u1_a0)251 TEST(getgrnam, app_id_u1_a0) {
252 check_get_group("u1_a0", 110000);
253 }
254
TEST(getgrnam,app_id_u1_a40000)255 TEST(getgrnam, app_id_u1_a40000) {
256 check_get_group("u1_a40000", 150000);
257 }
258
TEST(getgrnam,app_id_u1_i0)259 TEST(getgrnam, app_id_u1_i0) {
260 check_get_group("u1_i0", 199000);
261 }
262