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      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 #include <sys/types.h>
     20 #include <sys/cdefs.h>
     21 #include <pwd.h>
     22 #include <errno.h>
     23 #include <limits.h>
     24 #include <unistd.h>
     25 
     26 #if __BIONIC__
     27 
     28 #define CHECK_GETPWNAM_FOR(username, uid, uid_type) \
     29     SCOPED_TRACE(username); \
     30     ASSERT_NO_FATAL_FAILURE(check_getpwnam(username, uid, uid_type));
     31 
     32 typedef enum {
     33   TYPE_SYSTEM,
     34   TYPE_APP
     35 } uid_type_t;
     36 
     37 static void check_getpwnam(const char* username, uid_t uid, uid_type_t uid_type) {
     38   errno = 0;
     39   passwd* pwd = getpwuid(uid);
     40   ASSERT_TRUE(pwd != NULL);
     41   ASSERT_EQ(0, errno);
     42   EXPECT_STREQ(username, pwd->pw_name);
     43   EXPECT_EQ(uid, pwd->pw_uid);
     44   EXPECT_EQ(uid, pwd->pw_gid);
     45 
     46   if (uid_type == TYPE_SYSTEM) {
     47     EXPECT_STREQ("/", pwd->pw_dir);
     48   } else if (uid_type == TYPE_APP) {
     49     EXPECT_STREQ("/data", pwd->pw_dir);
     50   }
     51 
     52   EXPECT_STREQ("/system/bin/sh", pwd->pw_shell);
     53 }
     54 
     55 TEST(getpwnam, system_id_root) {
     56   CHECK_GETPWNAM_FOR("root", 0, TYPE_SYSTEM);
     57 }
     58 
     59 TEST(getpwnam, system_id_system) {
     60   CHECK_GETPWNAM_FOR("system", 1000, TYPE_SYSTEM);
     61 }
     62 
     63 TEST(getpwnam, app_id_radio) {
     64   CHECK_GETPWNAM_FOR("radio", 1001, TYPE_SYSTEM);
     65 }
     66 
     67 TEST(getpwnam, app_id_nobody) {
     68   CHECK_GETPWNAM_FOR("nobody", 9999, TYPE_SYSTEM);
     69 }
     70 
     71 TEST(getpwnam, app_id_all_a0) {
     72   CHECK_GETPWNAM_FOR("all_a0", 50000, TYPE_APP);
     73 }
     74 
     75 TEST(getpwnam, app_id_u1_a40000) {
     76   CHECK_GETPWNAM_FOR("u1_a40000", 150000, TYPE_APP);
     77 }
     78 
     79 TEST(getpwnam, app_id_u0_a0) {
     80   CHECK_GETPWNAM_FOR("u0_a0", 10000, TYPE_APP);
     81 }
     82 
     83 TEST(getpwnam, app_id_u0_a1234) {
     84   CHECK_GETPWNAM_FOR("u0_a1234", 11234, TYPE_APP);
     85 }
     86 
     87 TEST(getpwnam, app_id_u0_a9999) {
     88   CHECK_GETPWNAM_FOR("u0_a9999", 19999, TYPE_APP);
     89 }
     90 
     91 // nonsensical, but expected
     92 TEST(getpwnam, app_id_u1_root) {
     93   CHECK_GETPWNAM_FOR("u1_root", 100000, TYPE_SYSTEM);
     94 }
     95 
     96 TEST(getpwnam, app_id_u1_radio) {
     97   CHECK_GETPWNAM_FOR("u1_radio", 101001, TYPE_SYSTEM);
     98 }
     99 
    100 TEST(getpwnam, app_id_u1_a0) {
    101   CHECK_GETPWNAM_FOR("u1_a0", 110000, TYPE_APP);
    102 }
    103 
    104 TEST(getpwnam, app_id_u1_i0) {
    105   CHECK_GETPWNAM_FOR("u1_i0", 199000, TYPE_APP);
    106 }
    107 
    108 #endif /* __BIONIC__ */
    109