tool/src/initdb.c

   1 /*
   2  * ail
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Jayoun Lee <airjany@samsung.com>, Sewook Park <sewook7.park@samsung.com>, Jaeho Lee <jaeho81.lee@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22
  23
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <dirent.h>
  28 #include <unistd.h>
  29 #include <sys/stat.h>
  30 #include <errno.h>
  31 #include <sys/smack.h>
  32
  33 #include "ail.h"
  34 #include "ail_private.h"
  35 #include "ail_db.h"
  36
  37
  38 #ifdef _E
  39 #undef _E
  40 #endif
  41 #define _E(fmt, arg...) fprintf(stderr, "[AIL_INITDB][E][%s,%d] "fmt"\n", __FUNCTION__, __LINE__, ##arg);
  42
  43 #ifdef _D
  44 #undef _D
  45 #endif
  46 #define _D(fmt, arg...) fprintf(stderr, "[AIL_INITDB][D][%s,%d] "fmt"\n", __FUNCTION__, __LINE__, ##arg);
  47
  48 #define SET_DEFAULT_LABEL(x) \
  49         if(smack_setlabel((x), "*", SMACK_LABEL_ACCESS)) _E("failed chsmack -a \"*\" %s", x) \
  50         else _D("chsmack -a \"*\" %s", x)
  51
  52 static int initdb_count_app(void)
  53 {
  54         ail_filter_h filter;
  55         ail_error_e ret;
  56         int total = 0;
  57
  58         ret = ail_filter_new(&filter);
  59         if (ret != AIL_ERROR_OK) {
  60                 return -1;
  61         }
  62
  63         ret = ail_filter_add_bool(filter, AIL_PROP_NODISPLAY_BOOL, false);
  64         if (ret != AIL_ERROR_OK) {
  65                 ail_filter_destroy(filter);
  66                 return -1;
  67         }
  68         ret = ail_filter_count_appinfo(filter, &total);
  69         if (ret != AIL_ERROR_OK) {
  70                 ail_filter_destroy(filter);
  71                 return -1;
  72         }
  73
  74         ail_filter_destroy(filter);
  75
  76         return total;
  77 }
  78
  79
  80
  81 char* _desktop_to_package(const char* desktop)
  82 {
  83         char *package, *tmp;
  84
  85         retv_if(!desktop, NULL);
  86
  87         package = strdup(desktop);
  88         retv_if(!package, NULL);
  89
  90         tmp = strrchr(package, '.');
  91         if(tmp == NULL) {
  92                 _E("[%s] is not a desktop file", package);
  93                 free(package);
  94                 return NULL;
  95         }
  96
  97         if (strcmp(tmp, ".desktop")) {
  98                 _E("%s is not a desktop file", desktop);
  99                 free(package);
 100                 return NULL;
 101         }
 102
 103         *tmp = '\0';
 104
 105         return package;
 106 }
 107
 108
 109
 110 int initdb_load_directory(const char *directory)
 111 {
 112         DIR *dir;
 113         struct dirent entry, *result;
 114         int len, ret;
 115         char buf[BUFSZE];
 116         int total_cnt = 0;
 117         int ok_cnt = 0;
 118
 119         // desktop file
 120         dir = opendir(directory);
 121         if (!dir) {
 122                 if (strerror_r(errno, buf, sizeof(buf)) == 0)
 123                         _E("Failed to access the [%s] because %s\n", directory, buf);
 124                 return AIL_ERROR_FAIL;
 125         }
 126
 127         len = strlen(directory) + 1;
 128         _D("Loading desktop files from %s", directory);
 129
 130         for (ret = readdir_r(dir, &entry, &result);
 131                         ret == 0 && result != NULL;
 132                         ret = readdir_r(dir, &entry, &result)) {
 133                 char *package;
 134
 135                 if (entry.d_name[0] == '.') continue;
 136                 total_cnt++;
 137                 package = _desktop_to_package(entry.d_name);
 138                 if (!package) {
 139                         _E("Failed to convert file to package[%s]", entry.d_name);
 140                         continue;
 141                 }
 142
 143                 if (ail_desktop_add(package) != AIL_ERROR_OK) {
 144                         _E("Failed to add a package[%s]", package);
 145                 } else {
 146                         ok_cnt++;
 147                 }
 148                 free(package);
 149         }
 150
 151         _D("Application-Desktop process : Success [%d], fail[%d], total[%d] \n", ok_cnt, total_cnt-ok_cnt, total_cnt);
 152         closedir(dir);
 153
 154         return AIL_ERROR_OK;
 155 }
 156
 157
 158
 159 static int initdb_change_perm(const char *db_file)
 160 {
 161         char buf[BUFSZE];
 162         char journal_file[BUFSZE];
 163         char *files[3];
 164         int ret, i;
 165
 166         files[0] = (char *)db_file;
 167         files[1] = journal_file;
 168         files[2] = NULL;
 169
 170         retv_if(!db_file, AIL_ERROR_FAIL);
 171
 172         snprintf(journal_file, sizeof(journal_file), "%s%s", db_file, "-journal");
 173
 174         for (i = 0; files[i]; i++) {
 175                 ret = chown(files[i], GLOBAL_USER, OWNER_ROOT);
 176                 if (ret == -1) {
 177                         strerror_r(errno, buf, sizeof(buf));
 178                         _E("FAIL : chown %s %d.%d, because %s", db_file, OWNER_ROOT, OWNER_ROOT, buf);
 179                         return AIL_ERROR_FAIL;
 180                 }
 181
 182                 ret = chmod(files[i], S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
 183                 if (ret == -1) {
 184                         strerror_r(errno, buf, sizeof(buf));
 185                         _E("FAIL : chmod %s 0664, because %s", db_file, buf);
 186                         return AIL_ERROR_FAIL;
 187                 }
 188         }
 189
 190         return AIL_ERROR_OK;
 191 }
 192
 193
 194 static int __is_authorized()
 195 {
 196         /* ail_init db should be called by as root privilege. */
 197
 198         uid_t uid = getuid();
 199         uid_t euid = geteuid();
 200         //euid need to be root to allow smack label changes during initialization
 201         if ((uid_t) OWNER_ROOT == uid)
 202                 return 1;
 203         else
 204                 return 0;
 205 }
 206
 207 int xsystem(const char *argv[])
 208 {
 209         int status = 0;
 210         pid_t pid;
 211         pid = fork();
 212         switch (pid) {
 213         case -1:
 214                 perror("fork failed");
 215                 return -1;
 216         case 0:
 217                 /* child */
 218                 execvp(argv[0], (char *const *)argv);
 219                 _exit(-1);
 220         default:
 221                 /* parent */
 222                 break;
 223         }
 224         if (waitpid(pid, &status, 0) == -1) {
 225                 perror("waitpid failed");
 226                 return -1;
 227         }
 228         if (WIFSIGNALED(status)) {
 229                 perror("signal");
 230                 return -1;
 231         }
 232         if (!WIFEXITED(status)) {
 233                 /* shouldn't happen */
 234                 perror("should not happen");
 235                 return -1;
 236         }
 237         return WEXITSTATUS(status);
 238 }
 239
 240 int main(int argc, char *argv[])
 241 {
 242         int ret;
 243
 244         if (!__is_authorized()) {
 245                 fprintf(stderr, "You are not an authorized user!\n");
 246                 _D("You are not root user!\n");
 247                 return -1;
 248         }
 249         else {
 250                 if(remove(APP_INFO_DB_FILE))
 251                         _E(" %s is not removed",APP_INFO_DB_FILE);
 252                 if(remove(APP_INFO_DB_FILE_JOURNAL))
 253                         _E(" %s is not removed",APP_INFO_DB_FILE_JOURNAL);
 254         }
 255         ret = setenv("AIL_INITDB", "1", 1);
 256         _D("AIL_INITDB : %d", ret);
 257         setresuid(GLOBAL_USER, GLOBAL_USER, OWNER_ROOT);
 258
 259         if (db_open(DB_OPEN_RW, GLOBAL_USER) != AIL_ERROR_OK) {
 260                 _E("Fail to create system databases");
 261                 return AIL_ERROR_DB_FAILED;
 262         }
 263         ret = initdb_load_directory(USR_DESKTOP_DIRECTORY);
 264         if (ret == AIL_ERROR_FAIL) {
 265                 _E("cannot load usr desktop directory.");
 266         }
 267
 268         setuid(OWNER_ROOT);
 269         ret = initdb_change_perm(APP_INFO_DB_FILE);
 270         if (ret == AIL_ERROR_FAIL) {
 271                 _E("cannot chown.");
 272         }
 273         SET_DEFAULT_LABEL(APP_INFO_DB_FILE);
 274         SET_DEFAULT_LABEL(APP_INFO_DB_FILE_JOURNAL);
 275
 276         return AIL_ERROR_OK;
 277 }
 278
 279
 280
 281 // END