src/storage-inhouse.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   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
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <errno.h>
  22 #include <tzplatform_config.h>
  23
  24 #include "common.h"
  25 #include "list.h"
  26 #include "log.h"
  27 #include "storage-internal.h"
  28 #include "storage-external-dbus.h"
  29
  30 #define FORMAT_TIMEOUT  (120*1000)
  31
  32 /*
  33         Get compat path from origin Multi-user path
  34         from TZ_USER_CONTENT/.. to /opt/usr/media/..
  35         Input should be normalized path like /opt/usr/home/owner/media (TODO: internal normalization)
  36
  37         Why this API should be provided?
  38         In multi-user environment, each user has own compat content direcotry.(/opt/usr/media)
  39         However, although system daemon operates real path,
  40                 system daemon needs to provide compat path to App if the real path is converted.
  41
  42         Usage:
  43                 #include <storage-internal.h>
  44
  45                 char dest[100];
  46                 if(storage_get_compat_internal_path(src, sizeof(dest), dest) < 0)
  47                         // cannot convert. use src path
  48                 else
  49                         // can convert. use dest path
  50  */
  51 //LCOV_EXCL_START Untested function
  52 API int storage_get_compat_internal_path(const char* origin, int len, char* compat)
  53 {
  54         int r = -1;
  55         int str_len;
  56         const char* str;
  57
  58         if (!compat || !origin) {
  59                 _E("Invalid parameter");
  60                 return -1;
  61         }
  62
  63         // this API works on place where compat path is bind-mounted
  64         if (!is_compat_bind_mount()) {
  65                 //LCOV_EXCL_START System Error
  66                 _E("No compat bind mount");
  67                 return -1;
  68                 //LCOV_EXCL_STOP
  69         }
  70
  71         str = tzplatform_getenv(TZ_USER_CONTENT);
  72         str_len = strlen(str);
  73         if (strncmp(origin, str, str_len) != 0) {
  74                 _E("Failed to match TZ_USER_CONTENT");
  75                 return -1;
  76         }
  77
  78         r = snprintf(compat, len, "%s%s", COMPAT_DIR, origin + str_len);
  79         if (r < 0) {
  80                 //LCOV_EXCL_START System Error
  81                 _E("Failed to create new path");
  82                 return -1;
  83                 //LCOV_EXCL_STOP
  84         }
  85
  86         return 0;
  87 }
  88 //LCOV_EXCL_STOP
  89
  90 /*
  91         Get Multi-user path from compat path
  92         from /opt/usr/media/.. to TZ_USER_CONTENT/..
  93         Input should be normalized path like /opt/usr/media (TODO: internal normalization)
  94
  95         Why this API should be provided?
  96         In multi-user environment, each user has own compat content direcotry.(/opt/usr/media)
  97         However, although some APIs send the compat path to system daemon,
  98                 system daemon should access real path.
  99
 100         Usage:
 101                 #include <storage-internal.h>
 102
 103                 char dest[100];
 104                 if(storage_get_origin_internal_path(src, sizeof(dest), dest) < 0)
 105                         // cannot convert. use src path
 106                 else
 107                         // can convert. use dest path
 108 */
 109 API int storage_get_origin_internal_path(const char* compat, int len, char* origin)
 110 {
 111         int r;
 112         int compat_len;
 113
 114         if (!compat || !origin) {
 115                 _E("Invalid parameter");
 116                 return -1;
 117         }
 118
 119         // this API works on place where compat path is bind-mounted
 120         if (!is_compat_bind_mount()) {
 121                 //LCOV_EXCL_START System Error
 122                 _E("no compat bind mount");
 123                 return -1;
 124                 //LCOV_EXCL_STOP
 125         }
 126
 127         compat_len = strlen(COMPAT_DIR);
 128         if (strncmp(compat, COMPAT_DIR, compat_len) != 0) {
 129                 _E("failed to match COMPAT_DIR");
 130                 return -1;
 131         }
 132
 133         r = snprintf(origin, len, "%s%s", tzplatform_getenv(TZ_USER_CONTENT), compat + compat_len);
 134         if (r < 0) {
 135                 //LCOV_EXCL_START System Error
 136                 _E("failed to create new path");
 137                 return -1;
 138                 //LCOV_EXCL_STOP
 139         }
 140
 141         return 0;
 142 }
 143
 144 API int storage_get_primary_sdcard(int *storage_id, char **path)
 145 {
 146         GVariant *result;
 147         storage_ext_device info;
 148
 149         if (!storage_id || !path)
 150                 return STORAGE_ERROR_INVALID_PARAMETER;
 151
 152         result = dbus_method_call_sync(STORAGE_EXT_BUS_NAME,
 153                         STORAGE_EXT_PATH_MANAGER,
 154                         STORAGE_EXT_IFACE_MANAGER,
 155                         "GetMmcPrimary",
 156                         NULL);
 157         if (!result) {
 158                 //LCOV_EXCL_START System Error
 159                 _E("Failed to get primary sdcard partition"); //LCOV_EXCL_LINE
 160                 return STORAGE_ERROR_OPERATION_FAILED; //LCOV_EXCL_LINE
 161                 //LCOV_EXCL_STOP
 162         }
 163
 164         g_variant_get(result, "(issssssisibii)",
 165                         &info.type, &info.devnode, &info.syspath,
 166                         &info.fs_usage, &info.fs_type,
 167                         &info.fs_version, &info.fs_uuid,
 168                         &info.readonly, &info.mount_point,
 169                         &info.state, &info.primary,
 170                         &info.flags, &info.storage_id);
 171
 172         g_variant_unref(result);
 173
 174         if (info.storage_id < 0)
 175                 return STORAGE_ERROR_NO_DEVICE;
 176
 177         *path = strdup(info.mount_point);
 178         if (*path == NULL)
 179                 return STORAGE_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE System Error
 180
 181         *storage_id = info.storage_id;
 182
 183         return STORAGE_ERROR_NONE;
 184 }
 185
 186 API int storage_get_storage_level(const char *path, char **level)
 187 {
 188         int ret;
 189
 190         if (!level || !path)
 191                 return STORAGE_ERROR_INVALID_PARAMETER;
 192
 193         ret = storage_ext_get_storage_level(path, level);
 194         if (ret == -ENOMEM)
 195                 return STORAGE_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE System Error
 196         else if (ret == -EINVAL)
 197                 return STORAGE_ERROR_INVALID_PARAMETER;
 198         else if (ret < 0)
 199                 return STORAGE_ERROR_OPERATION_FAILED;
 200
 201         return STORAGE_ERROR_NONE;
 202 }
 203
 204 static void mount_mmc_cb(GVariant *var, void *user_data, GError *err)
 205 {
 206         struct mmc_contents *mmc_data = (struct mmc_contents*)user_data;
 207         int mmc_ret = -1;
 208
 209         _D("mount_mmc_cb called");
 210
 211         if (!var) {
 212                 _E("no message [%s]", err->message);
 213                 mmc_ret = -EBADMSG;
 214                 goto exit;
 215         }
 216
 217         g_variant_get(var, "(i)", &mmc_ret);
 218
 219         _I("Mount State : %d", mmc_ret);
 220
 221 exit:
 222         if (var)
 223                 g_variant_unref(var);
 224         (mmc_data->mmc_cb)(mmc_ret, mmc_data->user_data);
 225 }
 226
 227 API int storage_request_mount_mmc(struct mmc_contents *mmc_data)
 228 {
 229         void (*mount_cb)(GVariant *, void *, GError *) = NULL;
 230         void *data = NULL;
 231         char *path;
 232         int ret;
 233         int id;
 234
 235         if (mmc_data && mmc_data->mmc_cb) {
 236                 _I("Mount callback exists");
 237                 mount_cb = mount_mmc_cb;
 238                 data = mmc_data;
 239         }
 240
 241         ret = storage_get_primary_sdcard(&id, &path);
 242         if (ret != STORAGE_ERROR_NONE)
 243                 return ret;
 244
 245         ret = dbus_method_async_with_reply_var(STORAGE_EXT_BUS_NAME,
 246                         STORAGE_EXT_PATH_MANAGER,
 247                         STORAGE_EXT_IFACE_MANAGER,
 248                         "Mount",
 249                         g_variant_new("(is)", id, ""),
 250                         mount_cb,
 251                         -1,
 252                         data);
 253
 254         _I("Mount Request %s", ret == 0 ? "Success" : "Failed");
 255
 256         if (ret == -ENOMEM)
 257                 return STORAGE_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE System Error
 258         if (ret < 0)
 259                 return STORAGE_ERROR_OPERATION_FAILED; //LCOV_EXCL_LINE
 260
 261         return STORAGE_ERROR_NONE;
 262 }
 263
 264 static void unmount_mmc_cb(GVariant *var, void *user_data, GError *err)
 265 {
 266         struct mmc_contents *mmc_data = (struct mmc_contents*)user_data;
 267         int mmc_ret;
 268
 269         _D("unmount_mmc_cb called");
 270
 271         if (!var) {
 272                 _E("no message [%s]", err->message);
 273                 mmc_ret = -EBADMSG;
 274                 goto exit;
 275         }
 276
 277         g_variant_get(var, "(i)", &mmc_ret);
 278
 279         _I("Unmount State : %d", mmc_ret);
 280
 281 exit:
 282         if (var)
 283                 g_variant_unref(var);
 284         (mmc_data->mmc_cb)(mmc_ret, mmc_data->user_data);
 285 }
 286
 287 API int storage_request_unmount_mmc(struct mmc_contents *mmc_data, int option)
 288 {
 289         void (*unmount_cb)(GVariant *, void *, GError *) = NULL;
 290         void *data = NULL;
 291         char *path;
 292         int ret;
 293         int id;
 294
 295         if (option < 0 || option > 1)
 296                 return STORAGE_ERROR_INVALID_PARAMETER;
 297
 298         if (mmc_data && mmc_data->mmc_cb) {
 299                 _I("Unmount callback exists");
 300                 unmount_cb = unmount_mmc_cb;
 301                 data = mmc_data;
 302         }
 303
 304         ret = storage_get_primary_sdcard(&id, &path);
 305         if (ret != STORAGE_ERROR_NONE)
 306                 return ret;
 307
 308         ret = dbus_method_async_with_reply_var(STORAGE_EXT_BUS_NAME,
 309                         STORAGE_EXT_PATH_MANAGER,
 310                         STORAGE_EXT_IFACE_MANAGER,
 311                         "Unmount",
 312                         g_variant_new("(ii)", id, option),
 313                         unmount_cb,
 314                         -1,
 315                         data);
 316
 317         _I("Unmount Request %s", ret == 0 ? "Success" : "Failed");
 318
 319         if (ret == -ENOMEM)
 320                 return STORAGE_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE System Error
 321         if (ret < 0)
 322                 return STORAGE_ERROR_OPERATION_FAILED; //LCOV_EXCL_LINE
 323
 324         return STORAGE_ERROR_NONE;
 325 }
 326
 327 static void format_mmc_cb(GVariant *var, void *user_data, GError *err)
 328 {
 329         struct mmc_contents *mmc_data = (struct mmc_contents*)user_data;
 330         int mmc_ret;
 331
 332         _D("format_mmc_cb called");
 333
 334         if (!var) {
 335                 _E("no message [%s]", err->message);
 336                 mmc_ret = -EBADMSG;
 337                 goto exit;
 338         }
 339
 340         g_variant_get(var, "(i)", &mmc_ret);
 341
 342         _I("Format State : %d", mmc_ret);
 343
 344 exit:
 345         if (var)
 346                 g_variant_unref(var);
 347         (mmc_data->mmc_cb)(mmc_ret, mmc_data->user_data);
 348 }
 349
 350 API int storage_request_format_mmc(struct mmc_contents *mmc_data)
 351 {
 352         return storage_format_mmc(mmc_data, 1);
 353 }
 354
 355 API int storage_format_mmc(struct mmc_contents *mmc_data, int option)
 356 {
 357         void (*format_cb)(GVariant *, void *, GError *) = NULL;
 358         void *data = NULL;
 359         char *path;
 360         int ret;
 361         int id;
 362
 363         if (option < 0 || option > 1)
 364                 return STORAGE_ERROR_INVALID_PARAMETER;
 365
 366         if (mmc_data && mmc_data->mmc_cb) {
 367                 _I("Format callback exists");
 368                 format_cb = format_mmc_cb;
 369                 data = mmc_data;
 370         }
 371
 372         ret = storage_get_primary_sdcard(&id, &path);
 373         if (ret != STORAGE_ERROR_NONE)
 374                 return ret;
 375
 376         ret = dbus_method_async_with_reply_var(STORAGE_EXT_BUS_NAME,
 377                         STORAGE_EXT_PATH_MANAGER,
 378                         STORAGE_EXT_IFACE_MANAGER,
 379                         "Format",
 380                         g_variant_new("(ii)", id, option),
 381                         format_cb,
 382                         FORMAT_TIMEOUT,
 383                         data);
 384
 385         _I("Format Request %s", ret == 0 ? "Success" : "Failed");
 386
 387         if (ret == -ENOMEM)
 388                 return STORAGE_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE System Error
 389         if (ret < 0)
 390                 return STORAGE_ERROR_OPERATION_FAILED; //LCOV_EXCL_LINE
 391
 392         return STORAGE_ERROR_NONE;
 393 }