nv_hal branchsandbox/ToshikazuOhiwa/nv_hal

5 files changed, 805 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..f433b1a5
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..2f2d89fd
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,65 @@
+#
+# @copyright Copyright (c) 2018-2020 TOYOTA MOTOR CORPORATION.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+######### installed program/file ################
+TARGET := libnv_hal.so
+
+HEADER := hal_api/nv_hal.h
+
+######### include paths/files ###################
+CXXFLAGS := -I./inc/
+CXXFLAGS += -I./hal_api/
+CXXFLAGS += -I$(SDKTARGETSYSROOT)/usr/agl/include
+CXXFLAGS += -include $(SDKTARGETSYSROOT)/usr/agl/include/agl_types_obsoluted.h
+
+######### compile options #######################
+CXXFLAGS += -Wall -fPIC
+
+######### link options ##########################
+LDFLAGS += -L$(SDKTARGETSYSROOT)/usr/agl/lib
+LDFLAGS += -shared
+LDFLAGS += -Wl,--no-as-needed
+LDFLAGS += -Wl,--no-undefined
+
+RPATH :=
+
+######### linked library ########################
+LIBS += -Wl,-Bdynamic -lNS_FrameworkUnified
+
+######### source files ##########################
+VPATH := src
+OBJS := nv_hal.o
+
+######### make targets ##########################
+all: $(TARGET)
+	@echo $@ done.
+
+$(TARGET): $(OBJS)
+	$(CC) $(LDFLAGS) -Wl,-rpath=$(RPATH) $(OBJS) $(LIBS) -o $(TARGET)
+	@echo $@ done.
+
+######### make cleans ###########################
+GCNO_FILES := $(filter %.gcno,$(OBJS:%.o=%.gcno))
+
+clean:
+	rm -f $(OBJS) $(TARGET) $(GCNO_FILES)
+	@echo $@ done.
+
+######### make installs #########################
+install:
+	install -d -m 0755 $(DESTDIR)/usr/lib
+	install -m 0755 $(TARGET) $(DESTDIR)/usr/lib
+	@echo $@ done.
diff --git a/hal_api/nv_hal.h b/hal_api/nv_hal.h
new file mode 100644
index 00000000..20147541
--- /dev/null
+++ b/hal_api/nv_hal.h
@@ -0,0 +1,245 @@
+/*
+ * @copyright Copyright(c) 2018-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HAL_API_NV_HAL_H_
+#define HAL_API_NV_HAL_H_
+
+#include <stdint.h>
+#include <native_service/frameworkunified_types.h>
+
+/**
+ * @file nv_hal.h
+ * @brief This file provides API for accessing storage device.
+ */
+
+/** @addtogroup backup_manager
+ *  @{
+ */
+/** @addtogroup nv_hal
+ *  @ingroup backup_manager
+ *  @{
+ */
+
+/**
+ * \~english NvHalMedia
+ */
+enum NvHalMedia {
+  /**
+   * \~english CacheDram
+   */
+  NVHALMEDIA_CACHEDRAM = 0,
+  /**
+   * \~english BackupDram
+   */
+  NVHALMEDIA_BACKUPDRAM,
+  /**
+   * \~english nand
+   */
+  NVHALMEDIA_NAND,
+  /**
+   * \~english Max
+   */
+  NVHALMEDIA_MAX
+};
+
+/**\ingroup InitNv
+ * \~english @par Brief
+ *      Initialize Nv hal library.
+ * \~english @retval eFrameworkunifiedStatusOK   : succsess initialize.
+ * \~english @retval eFrameworkunifiedStatusFail : fail initialize
+ * \~english @par Preconditions
+ *      - There is no preconditions for this API.
+ * \~english @par Change of internal state
+ *      - Change of internal state according to the API does not occur.
+ * \~english @par Conditions of processing failure
+ *      - Initialization processing failure.[eFrameworkunifiedStatusFail]
+ * \~english @par Detail
+ *      - Perform Nv_hal library initialization.
+ *      - This process also performs deletion of temporary files accompanying system reset\n
+ *        during write processing.
+ *      - The API can only be used by 1 process.
+ * \~english @par Classification
+ *      Public
+ * \~english @par Type
+ *      Sync
+ * \~english @see
+ *      - None
+ */
+EFrameworkunifiedStatus InitNv(void);
+
+/**\ingroup GetSizeNv
+ * \~english @par Brief
+ *      This API get data size which is stored in storage device.
+ * \~english @param [in] media
+ *      enum NvHalMedia           - Media type
+ * \~english @param [in] filename
+ *      const char*               - file name(Concatenated[category name/item name])
+ * \~english @param [out] size
+ *      uint32_t                  - Data size
+ * \~english @par
+ *      - Get decrypted data size as encryption data when item name in the argument of filename (file name) is added Prefix "ENC_".
+ *       - Non encryption data : D_BK_CA_GID_D/D_BK_ID_GID_D
+ *       - Encryption data     : D_BK_CA_GID_D/ENC_D_BK_ID_GID_D
+ * \~english @retval eFrameworkunifiedStatusOK OK
+ * \~english @retval eFrameworkunifiedStatusFileLoadError File not exists
+ * \~english @retval eFrameworkunifiedStatusInvldParam Parameter error
+ * \~english @par Preconditions
+ *      - There is no preconditions for this API.
+ * \~english @par Change of internal state
+ *      - Change of internal state according to the API does not occur.
+ * \~english @par Conditions of processing failure
+ *      - If the parameter media is less than NVHALMEDIA_CACHEDRAM or greater than\n
+ *      NVHALMEDIA_NAND. [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter id is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Value of parameter size is 0. [eFrameworkunifiedStatusInvldParam]
+ *      - Internal IO error(lstat).[eFrameworkunifiedStatusFileLoadError]
+ * \~english @par Detail
+ *      - This API get the data size according to specified media and ID.
+ *      - The API can only be used by 1 process.
+ * \~english @par Classification
+ *      Public
+ * \~english @par Type
+ *      Sync
+ * \~english @see WriteNv ReadNv
+ */
+EFrameworkunifiedStatus GetSizeNv(enum NvHalMedia media, const char *filename, uint32_t* size);
+
+
+
+/**\ingroup ReadNv
+ * \~english @par Brief
+ *      Read data from storage device.
+ * \~english @param [in] media
+ *      enum NvHalMedia           - Media type
+ * \~english @param [in] filename
+ *      const char*               - file name(Concatenated[category name/item name])
+ * \~english @param [out] buffer
+ *      uint8_t*                  - Buffer for storing read data
+ * \~english @param [in] size
+ *      uint32_t                  - Data size
+ * \~english @par
+ *      - Decrypt and read data as encryption data when item name in the argument of filename (file name) is added Prefix "ENC_".
+ *       - Non encryption data : D_BK_CA_GID_D/D_BK_ID_GID_D
+ *       - Encryption data     : D_BK_CA_GID_D/ENC_D_BK_ID_GID_D
+ * \~english @retval eFrameworkunifiedStatusOK OK
+ * \~english @retval eFrameworkunifiedStatusInvldParam Parameter error
+ * \~english @retval eFrameworkunifiedStatusFail Read data failed
+ * \~english @par Preconditions
+ *      - There is no preconditions for this API.
+ * \~english @par Change of internal state
+ *      - Change of internal state according to the API does not occur.
+ * \~english @par Conditions of processing failure
+ *      - If the parameter media is less than NVHALMEDIA_CACHEDRAM or greater than\n
+ *      NVHALMEDIA_NAND. [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter id is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter buffer is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Value of parameter size is 0. [eFrameworkunifiedStatusInvldParam]
+ *      - Internal IO error(open, pread, lstat, close).[eFrameworkunifiedStatusFail]
+ *      - The value of parameter size is not equal to the file size specified by id.
+ *      [eFrameworkunifiedStatusFail]
+ * \~english @par Detail
+ *      - This API reads data according to specified media and ID.
+ *      - ID is managed by backup_manager.For details, refer to "Details about XML file" in external specification of backup_manager.
+ *      - The API can only be used by 1 process.
+ * \~english @par Classification
+ *      Public
+ * \~english @par Type
+ *      Sync
+ * \~english @see CheckNv WriteNv
+ */
+EFrameworkunifiedStatus ReadNv(enum NvHalMedia media, const char *filename, uint8_t *buffer, uint32_t size);
+
+/**\ingroup WriteNv
+ * \~english @par Brief
+ *      Write data to storage device.
+ * \~english @param [in] media
+ *      enum NvHalMedia           - Media type
+ * \~english @param [in] filename
+ *      const char*               - filename(Concatenated[category name/item name])
+ * \~english @param [in] buffer
+ *      uint8_t*                  - Buffer for storing written data
+ * \~english @param [in] size
+ *      uint32_t                  - Data size
+ * \~english @par
+ *      - Encrypt and write data as encryption data when item name in the argument of filename (file name) is added Prefix "ENC_".
+ *       - Non encryption data : D_BK_CA_GID_D/D_BK_ID_GID_D
+ *       - Encryption data     : D_BK_CA_GID_D/ENC_D_BK_ID_GID_D
+ * \~english @retval eFrameworkunifiedStatusOK OK
+ * \~english @retval eFrameworkunifiedStatusInvldParam Parameter error
+ * \~english @retval eFrameworkunifiedStatusFail Write data failed
+ * \~english @par Preconditions
+ *      - There is no preconditions for this API.
+ * \~english @par Change of internal state
+ *      - Change of internal state according to the API does not occur.
+ * \~english @par Conditions of processing failure
+ *      - If the parameter media is less than NVHALMEDIA_CACHEDRAM or greater than\n
+ *      NVHALMEDIA_NAND. [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter id is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter buffer is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Value of parameter size is 0. [eFrameworkunifiedStatusInvldParam]
+ *      - Internal IO error(open, pwrite, close, mkdir).[eFrameworkunifiedStatusFail]
+ * \~english @par Detail
+ *      - This API writes data according to specified media and ID.
+ *      - filename is managed by backup_manager.For details, refer to "Details about XML file" in external specification of backup_manager.
+ *      - The API can only be used by 1 process.
+ * \~english @par Classification
+ *      Public
+ * \~english @par Type
+ *      Sync
+ * \~english @see CheckNv ReadNv
+ */
+EFrameworkunifiedStatus WriteNv(enum NvHalMedia media, const char *filename, uint8_t *buffer, uint32_t size);
+
+/**\ingroup DeleteNv
+ * \~english @par Brief
+ *      Delete data which is stored in storage device.
+ * \~english @param [in] media
+ *      enum \ref NvHalMedia           - Media type
+ * \~english @param [in] filename
+ *      const char*               - filename(Concatenated[category name/item name])
+ * \~english @par
+ *      - Delete data as encryption data when item name in the argument of filename (file name) is added Prefix "ENC_".
+ *       - Non encryption data : D_BK_CA_GID_D/D_BK_ID_GID_D
+ *       - Encryption data     : D_BK_CA_GID_D/ENC_D_BK_ID_GID_D
+ * \~english @retval eFrameworkunifiedStatusOK OK
+ * \~english @retval eFrameworkunifiedStatusInvldParam Parameter error
+ * \~english @retval eFrameworkunifiedStatusFail Delete data failed
+ * \~english @par Preconditions
+ *      - There is no preconditions for this API.
+ * \~english @par Change of internal state
+ *      - Change of internal state according to the API does not occur.
+ * \~english @par Conditions of processing failure
+ *      - If the parameter media is less than \ref NVHALMEDIA_CACHEDRAM or greater than\n
+ *        \ref NVHALMEDIA_NAND . [eFrameworkunifiedStatusInvldParam]
+ *      - Parameter filename (filename) is NULL. [eFrameworkunifiedStatusInvldParam]
+ *      - Internal IO error.[eFrameworkunifiedStatusFail]
+ * \~english @par Detail
+ *      - This API delete data according to specified media and filename.
+ *      - This API delete encryption key if data is encrypted.
+ *      - filename is managed by backup_manager.For details, refer to "Details about XML file" in external specification of backup_manager.
+ *      - The API can only be used by 1 process.
+ * \~english @par Classification
+ *      Public
+ * \~english @par Type
+ *      Sync
+ * \~english @see GetSizeNv ReadNv WriteNv
+ */
+EFrameworkunifiedStatus DeleteNv(enum NvHalMedia media, const char *filename);
+
+/** @}*/  // end of nv_hal
+/** @}*/  // end of backup_manager
+
+#endif  // HAL_API_NV_HAL_H_
diff --git a/inc/nv_hal_nvhallog.h b/inc/nv_hal_nvhallog.h
new file mode 100644
index 00000000..d62bd883
--- /dev/null
+++ b/inc/nv_hal_nvhallog.h
@@ -0,0 +1,76 @@
+/*
+ * @copyright Copyright (c) 2018-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef INC_NV_HAL_NVHALLOG_H_
+#define INC_NV_HAL_NVHALLOG_H_
+
+#include <native_service/ns_logger_if.h>
+
+#define ZONE_INIT         ZONEMASK(10)
+#define ZONE_FUNC         ZONEMASK(11)
+#define ZONE_MEM          ZONEMASK(12)
+#define ZONE_13           ZONEMASK(13)
+#define ZONE_14           ZONEMASK(14)
+#define ZONE_15           ZONEMASK(15)
+#define ZONE_16           ZONEMASK(16)
+#define ZONE_17           ZONEMASK(17)
+#define ZONE_18           ZONEMASK(18)
+#define ZONE_19           ZONEMASK(19)
+#define ZONE_20           ZONEMASK(20)
+#define ZONE_21           ZONEMASK(21)
+#define ZONE_22           ZONEMASK(22)
+#define ZONE_23           ZONEMASK(23)
+#define ZONE_24           ZONEMASK(24)
+#define ZONE_25           ZONEMASK(25)
+#define ZONE_26           ZONEMASK(26)
+#define ZONE_27           ZONEMASK(27)
+#define ZONE_28           ZONEMASK(28)
+#define ZONE_INFO         ZONEMASK(29)
+#define ZONE_WARN         ZONEMASK(30)
+#define ZONE_ERR          ZONEMASK(31)
+
+#define ZONE_TEXT_10      "Init"
+#define ZONE_TEXT_11      "Function"
+#define ZONE_TEXT_12      "Memory"
+#define ZONE_TEXT_13      ""
+#define ZONE_TEXT_14      ""
+#define ZONE_TEXT_15      ""
+#define ZONE_TEXT_16      ""
+#define ZONE_TEXT_17      ""
+#define ZONE_TEXT_18      ""
+#define ZONE_TEXT_19      ""
+#define ZONE_TEXT_20      ""
+#define ZONE_TEXT_21      ""
+#define ZONE_TEXT_22      ""
+#define ZONE_TEXT_23      ""
+#define ZONE_TEXT_24      ""
+#define ZONE_TEXT_25      ""
+#define ZONE_TEXT_26      ""
+#define ZONE_TEXT_27      ""
+#define ZONE_TEXT_28      ""
+#define ZONE_TEXT_29      "Info"
+#define ZONE_TEXT_30      "Warning"
+#define ZONE_TEXT_31      "Error"
+
+#ifndef  FRAMEWORKUNIFIEDLOGOPTIONS
+#define FRAMEWORKUNIFIEDLOGOPTIONS (LSHAREDMEM)  // LPRINT , LMSGQ, LSLOGGER
+#endif
+
+#ifndef FRAMEWORKUNIFIEDLOGAPPZONES
+#define FRAMEWORKUNIFIEDLOGAPPZONES ZONE_ERR, ZONE_WARN, ZONE_INFO
+#endif
+
+extern const CHAR AppName[];  // NOLINT (defind outside)
+#endif  // INC_NV_HAL_NVHALLOG_H_
diff --git a/src/nv_hal.cpp b/src/nv_hal.cpp
new file mode 100644
index 00000000..d746ea05
--- /dev/null
+++ b/src/nv_hal.cpp
@@ -0,0 +1,242 @@
+/*
+ * @copyright Copyright(c) 2018-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "nv_hal.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <aglpath.h>
+#include <sys/syscall.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "nv_hal_nvhallog.h"
+
+/**
+ * Media type difine.
+ */
+const char *kMediaType[NVHALMEDIA_MAX] = {
+  "/tmp/bkup/",
+  "/ramd/BS/ns/backup_manager/rwdata/",
+  "/nv/BS/ns/backup_manager/rwdata/",
+};
+
+const int kMaxPath = 127;    // Max length of path
+
+/**
+ *  Initialize Nv hal
+ */
+EFrameworkunifiedStatus InitNv(void) {
+  return eFrameworkunifiedStatusOK;
+}
+
+/**
+ * Get data size.
+ */
+EFrameworkunifiedStatus GetSizeNv(enum NvHalMedia media, const char *filename, uint32_t *size) {
+  if ((media < NVHALMEDIA_CACHEDRAM) || (media > NVHALMEDIA_NAND)) {  // Argument range checking
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid media type:%d\n", media);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == filename) {  // NULL checking of arguments
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "filename is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == size) {  // NULL checking of arguments
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "size is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  char path[kMaxPath];
+  memset(path, '\0', kMaxPath);
+  snprintf(path, kMaxPath, "%s%s", kMediaType[media], filename);
+  // Geting the file size
+  struct stat file_stat;
+  if (0 > lstat(path, &file_stat)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "lstat() error, errno=%d\n", errno);
+    return eFrameworkunifiedStatusFileLoadError;
+  }
+  *size = file_stat.st_size;
+  return eFrameworkunifiedStatusOK;
+}
+
+
+
+/**
+ * Reading data from memory device.
+ */
+EFrameworkunifiedStatus ReadNv(enum NvHalMedia media, const char *filename, uint8_t *buffer, uint32_t size) {
+  if ((media < NVHALMEDIA_CACHEDRAM) || (media > NVHALMEDIA_NAND)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid media type:%d\n", media);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == filename) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "filename is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == buffer) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "buffer is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (0 == size) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid size:%d\n", size);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  char path[kMaxPath];
+  memset(path, '\0', kMaxPath);
+  snprintf(path, kMaxPath, "%s%s", kMediaType[media], filename);
+  struct stat file_stat;
+  if (0 > lstat(path, &file_stat)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "lstat() error, errno=%d\n", errno);
+    return eFrameworkunifiedStatusFail;
+  }
+  if (file_stat.st_size != size) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "size error:%ld != %d\n", file_stat.st_size, size);
+    return eFrameworkunifiedStatusFail;
+  }
+  int fd = open(path, O_RDONLY);
+  if (-1 == fd) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "open(%s) error, errno=%d\n", path, errno);
+    return eFrameworkunifiedStatusFail;
+  } else {
+    size_t tot_read;
+    // Read data by support EINTR
+    for (tot_read = 0; tot_read < static_cast<size_t>(size);) {
+      ssize_t read_size = pread(fd, &buffer[tot_read], static_cast<size_t>(size) - tot_read, tot_read);
+      if (-1 == read_size) {
+        if (errno == EINTR) {
+          continue;
+        } else {
+          FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "pread() error, errno=%d\n", errno);
+          if (0 != close(fd)) {
+            FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "close() error, errno=%d\n", errno);
+          }
+          return eFrameworkunifiedStatusFail;
+        }
+      }
+      tot_read += read_size;
+    }
+    if (0 != close(fd)) {
+      FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "close() error, errno=%d\n", errno);
+      return eFrameworkunifiedStatusFail;
+    }
+  }
+  return eFrameworkunifiedStatusOK;
+}
+
+/**
+ * Writing data to memory device.
+ */
+EFrameworkunifiedStatus WriteNv(enum NvHalMedia media, const char *filename, uint8_t *buffer, uint32_t size) {
+  if ((media < NVHALMEDIA_CACHEDRAM) || (media > NVHALMEDIA_NAND)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid media type:%d\n", media);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == filename) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "filename is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == buffer) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "buffer is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (0 == size) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid size:%d\n", size);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  char path[kMaxPath];
+  memset(path, '\0', kMaxPath);
+  snprintf(path, kMaxPath, "%s%s", kMediaType[media], filename);
+  struct stat file_stat;
+  // Check file exists or not, mkdir first if file no exists.
+  if (0 > lstat(path, &file_stat)) {
+    char *dir_point = path;
+    char dir_buff[kMaxPath];
+    dir_point++;
+    while ((dir_point = strchr(dir_point, '/'))) {
+      memset(dir_buff, '\0', kMaxPath);
+      memcpy(dir_buff, path, dir_point - path);
+      if (0 > mkdir(dir_buff, 0770)) {
+        if (EEXIST != errno) {
+          FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "mkdir() error, errno=%d\n", errno);
+          return eFrameworkunifiedStatusFail;
+        } else {
+          dir_point++;
+          continue;
+        }
+      }
+      dir_point++;
+    }
+  }
+  int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0660);
+  if (-1 == fd) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "open(%s) error, errno=%d\n", path, errno);
+    return eFrameworkunifiedStatusFail;
+  } else {
+    size_t tot_written;
+    // Write data by support EINTR
+    for (tot_written = 0; tot_written < static_cast<size_t>(size);) {
+      ssize_t write_size = pwrite(fd, &buffer[tot_written], static_cast<size_t>(size) - tot_written, tot_written);
+      if (0 >= write_size) {
+        if (-1 == write_size && errno == EINTR) {
+          continue;
+        } else {
+          FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "pwrite() error, errno=%d\n", errno);
+          if (0 != close(fd)) {
+            FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "close() error, errno=%d\n", errno);
+          }
+          return eFrameworkunifiedStatusFail;
+        }
+      }
+      tot_written += write_size;
+    }
+    if (0 != close(fd)) {
+      FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "close() error, errno=%d\n", errno);
+      return eFrameworkunifiedStatusFail;
+    }
+  }
+  return eFrameworkunifiedStatusOK;
+}
+
+/**
+ * Delete data.
+ */
+EFrameworkunifiedStatus DeleteNv(enum NvHalMedia media, const char *filename) {
+  if ((media < NVHALMEDIA_CACHEDRAM) || (media > NVHALMEDIA_NAND)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "invalid media type:%d\n", media);
+    return eFrameworkunifiedStatusInvldParam;
+  }
+  if (NULL == filename) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "filename is NULL.\n");
+    return eFrameworkunifiedStatusInvldParam;
+  }
+
+  char path[kMaxPath];
+  memset(path, '\0', kMaxPath);
+  snprintf(path, kMaxPath, "%s%s", kMediaType[media], filename);
+  struct stat file_stat;
+
+  if (0 > lstat(path, &file_stat)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "lstat() error, errno=%d\n", errno);
+    return eFrameworkunifiedStatusFail;
+  }
+
+  if (0 != unlink(path)) {
+    FRAMEWORKUNIFIEDLOG(ZONE_ERR, __FUNCTION__, "unlink() error, errno=%d\n", errno);
+    return eFrameworkunifiedStatusFail;
+  }
+
+  return eFrameworkunifiedStatusOK;
+}