tool/src/createdb.c

   1 /*
   2  * ail
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  * Copyright (C) 2013-2014 Intel Corporation.
   6  *
   7  * Contact: Sabera Djelti <sabera.djelti@open.eurogiciel.org>,
   8  * Jayoun Lee <airjany@samsung.com>, Sewook Park <sewook7.park@samsung.com>, Jaeho Lee <jaeho81.lee@samsung.com>
   9  *
  10  * Licensed under the Apache License, Version 2.0 (the "License");
  11  * you may not use this file except in compliance with the License.
  12  * You may obtain a copy of the License at
  13  *
  14  * http://www.apache.org/licenses/LICENSE-2.0
  15  *
  16  * Unless required by applicable law or agreed to in writing, software
  17  * distributed under the License is distributed on an "AS IS" BASIS,
  18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  19  * See the License for the specific language governing permissions and
  20  * limitations under the License.
  21  *
  22  */
  23
  24
  25
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <dirent.h>
  30 #include <unistd.h>
  31 #include <sys/stat.h>
  32 #include <errno.h>
  33 #include <sys/smack.h>
  34
  35 #include "ail.h"
  36 #include "ail_private.h"
  37 #include "ail_db.h"
  38
  39
  40 #ifdef _E
  41 #undef _E
  42 #endif
  43 #define _E(fmt, arg...) fprintf(stderr, "[AIL_INITDB][E][%s,%d] "fmt"\n", __FUNCTION__, __LINE__, ##arg);
  44
  45 #ifdef _D
  46 #undef _D
  47 #endif
  48 #define _D(fmt, arg...) fprintf(stderr, "[AIL_INITDB][D][%s,%d] "fmt"\n", __FUNCTION__, __LINE__, ##arg);
  49
  50 #define SET_DEFAULT_LABEL(x) \
  51         if(smack_setlabel((x), "*", SMACK_LABEL_ACCESS)) _E("failed chsmack -a \"*\" %s", x) \
  52         else _D("chsmack -a \"*\" %s", x)
  53
  54 static int createb_count_app(void)
  55 {
  56         ail_filter_h filter;
  57         ail_error_e ret;
  58         int total = 0;
  59
  60         ret = ail_filter_new(&filter);
  61         if (ret != AIL_ERROR_OK) {
  62                 return -1;
  63         }
  64
  65         ret = ail_filter_add_bool(filter, AIL_PROP_NODISPLAY_BOOL, false);
  66         if (ret != AIL_ERROR_OK) {
  67                 ail_filter_destroy(filter);
  68                 return -1;
  69         }
  70         ret = ail_filter_count_appinfo(filter, &total);
  71         if (ret != AIL_ERROR_OK) {
  72                 ail_filter_destroy(filter);
  73                 return -1;
  74         }
  75
  76         ail_filter_destroy(filter);
  77
  78         return total;
  79 }
  80
  81
  82 static int createdb_change_perm(const char *db_file)
  83 {
  84         char buf[BUFSZE];
  85         char journal_file[BUFSZE];
  86         char *files[3];
  87         int ret, i;
  88
  89         files[0] = (char *)db_file;
  90         files[1] = journal_file;
  91         files[2] = NULL;
  92
  93         retv_if(!db_file, AIL_ERROR_FAIL);
  94
  95         snprintf(journal_file, sizeof(journal_file), "%s%s", db_file, "-journal");
  96
  97         for (i = 0; files[i]; i++) {
  98                 ret = chown(files[i], GLOBAL_USER, OWNER_ROOT);
  99                 if (ret == -1) {
 100                         strerror_r(errno, buf, sizeof(buf));
 101                         _E("FAIL : chown %s %d.%d, because %s", db_file, OWNER_ROOT, OWNER_ROOT, buf);
 102                         return AIL_ERROR_FAIL;
 103                 }
 104
 105                 ret = chmod(files[i], S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
 106                 if (ret == -1) {
 107                         strerror_r(errno, buf, sizeof(buf));
 108                         _E("FAIL : chmod %s 0664, because %s", db_file, buf);
 109                         return AIL_ERROR_FAIL;
 110                 }
 111         }
 112
 113         return AIL_ERROR_OK;
 114 }
 115
 116
 117 static int __is_authorized()
 118 {
 119         /* ail_init db should be called by as root privilege. */
 120
 121         uid_t uid = getuid();
 122         uid_t euid = geteuid();
 123         //euid need to be root to allow smack label changes during initialization
 124         if ((uid_t) OWNER_ROOT == uid)
 125                 return 1;
 126         else
 127                 return 0;
 128 }
 129
 130 int xsystem(const char *argv[])
 131 {
 132         int status = 0;
 133         pid_t pid;
 134         pid = fork();
 135         switch (pid) {
 136         case -1:
 137                 perror("fork failed");
 138                 return -1;
 139         case 0:
 140                 /* child */
 141                 execvp(argv[0], (char *const *)argv);
 142                 _exit(-1);
 143         default:
 144                 /* parent */
 145                 break;
 146         }
 147         if (waitpid(pid, &status, 0) == -1) {
 148                 perror("waitpid failed");
 149                 return -1;
 150         }
 151         if (WIFSIGNALED(status)) {
 152                 perror("signal");
 153                 return -1;
 154         }
 155         if (!WIFEXITED(status)) {
 156                 /* shouldn't happen */
 157                 perror("should not happen");
 158                 return -1;
 159         }
 160         return WEXITSTATUS(status);
 161 }
 162
 163 int main(int argc, char *argv[])
 164 {
 165         int ret;
 166
 167         if (!__is_authorized()) {
 168                 fprintf(stderr, "You are not an authorized user!\n");
 169                 _D("You are not root user!\n");
 170         }
 171         else {
 172                 if(remove(APP_INFO_DB_FILE))
 173                         _E(" %s is not removed",APP_INFO_DB_FILE);
 174                 if(remove(APP_INFO_DB_FILE_JOURNAL))
 175                         _E(" %s is not removed",APP_INFO_DB_FILE_JOURNAL);
 176         }
 177         ret = setenv("AIL_INITDB", "1", 1);
 178         _D("AIL_INITDB : %d", ret);
 179         setresuid(GLOBAL_USER, GLOBAL_USER, OWNER_ROOT);
 180
 181         if (db_open(DB_OPEN_RW, GLOBAL_USER) != AIL_ERROR_OK) {
 182                 _E("Fail to create system databases");
 183                 return AIL_ERROR_DB_FAILED;
 184         }
 185
 186         setuid(OWNER_ROOT);
 187         ret = createdb_change_perm(APP_INFO_DB_FILE);
 188         if (ret == AIL_ERROR_FAIL) {
 189                 _E("cannot chown.");
 190         }
 191         SET_DEFAULT_LABEL(APP_INFO_DB_FILE);
 192         SET_DEFAULT_LABEL(APP_INFO_DB_FILE_JOURNAL);
 193
 194         return AIL_ERROR_OK;
 195 }
 196
 197
 198
 199 // END