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authorOscar Montemayor <oam@google.com>2010-02-26 01:47:02 +0100
committerOscar Montemayor <oam@google.com>2010-03-15 17:45:49 +0100
commit31f6ee88ce0d5155cb62d1b928604568318981a3 (patch)
treed26cea0a9dd0a68af5ceb2f96db256a7aa3bfb0a /efs_migration.c
parentAdd an empty CleanSpec.mk (diff)
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Diffstat (limited to '')
-rw-r--r--efs_migration.c183
1 files changed, 0 insertions, 183 deletions
diff --git a/efs_migration.c b/efs_migration.c
deleted file mode 100644
index aeadd1865..000000000
--- a/efs_migration.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "efs_migration.h"
-#include "cutils/misc.h"
-#include "cutils/properties.h"
-#include "common.h"
-#include "mtdutils/mtdutils.h"
-#include "mtdutils/mounts.h"
-#include "roots.h"
-
-const char* efs_enabled_property = "persist.security.efs.enabled";
-const char* efs_transition_property = "persist.security.efs.trans";
-const char* efs_property_dir = "/data/property/";
-
-void get_property_file_name(char *buffer, const char *property_name) {
- sprintf(buffer, "%s%s", efs_property_dir, property_name);
-}
-
-int get_text_file_contents(char *buffer, int buf_size, char *file_name) {
- FILE *in_file;
- char *read_data;
-
- in_file = fopen(file_name, "r");
- if (in_file == NULL) {
- LOGE("Encrypted FS: error accessing properties.");
- return EFS_ERROR;
- }
-
- read_data = fgets(buffer, buf_size, in_file);
- if (read_data == NULL) {
- // Error or unexpected data
- fclose(in_file);
- LOGE("Encrypted FS: error accessing properties.");
- return EFS_ERROR;
- }
-
- fclose(in_file);
- return EFS_OK;
-}
-
-int set_text_file_contents(char *buffer, char *file_name) {
- FILE *out_file;
- int result;
-
- out_file = fopen(file_name, "w");
- if (out_file == NULL) {
- LOGE("Encrypted FS: error setting up properties.");
- return EFS_ERROR;
- }
-
- result = fputs(buffer, out_file);
- if (result != 0) {
- // Error or unexpected data
- fclose(out_file);
- LOGE("Encrypted FS: error setting up properties.");
- return EFS_ERROR;
- }
-
- fflush(out_file);
- fclose(out_file);
- return EFS_OK;
-}
-
-
-int read_efs_boolean_property(const char *prop_name, int *value) {
- char prop_file_name[PROPERTY_KEY_MAX + 32];
- char prop_value[PROPERTY_VALUE_MAX];
- int result;
-
- get_property_file_name(prop_file_name, prop_name);
- result = get_text_file_contents(prop_value, PROPERTY_VALUE_MAX, prop_file_name);
-
- if (result < 0) {
- return result;
- }
-
- if (strncmp(prop_value, "1", 1) == 0) {
- *value = 1;
- } else if (strncmp(prop_value, "0", 1) == 0) {
- *value = 0;
- } else {
- LOGE("Encrypted FS: error accessing properties.");
- return EFS_ERROR;
- }
-
- return EFS_OK;
-}
-
-int write_efs_boolean_property(const char *prop_name, int value) {
- char prop_file_name[PROPERTY_KEY_MAX + 32];
- char prop_value[PROPERTY_VALUE_MAX];
- int result;
-
- get_property_file_name(prop_file_name, prop_name);
-
- // Create the directory if needed
- mkdir(efs_property_dir, 0755);
- if (value == 1) {
- result = set_text_file_contents("1", prop_file_name);
- } else if (value == 0) {
- result = set_text_file_contents("0", prop_file_name);
- } else {
- return EFS_ERROR;
- }
- if (result < 0) {
- return result;
- }
-
- return EFS_OK;
-}
-
-int read_encrypted_fs_info(encrypted_fs_info *efs_data) {
- int result;
- int value;
- result = ensure_root_path_mounted("DATA:");
- if (result != 0) {
- LOGE("Encrypted FS: error mounting userdata partition.");
- return EFS_ERROR;
- }
-
- // STOPSHIP: Read the EFS key from a file (TBD later)
- // Future code goes here...
-
- result = ensure_root_path_unmounted("DATA:");
- if (result != 0) {
- LOGE("Encrypted FS: error unmounting data partition.");
- return EFS_ERROR;
- }
-
- return EFS_OK;
-}
-
-int restore_encrypted_fs_info(encrypted_fs_info *efs_data) {
- int result;
- result = ensure_root_path_mounted("DATA:");
- if (result != 0) {
- LOGE("Encrypted FS: error mounting userdata partition.");
- return EFS_ERROR;
- }
-
- // Set the EFS properties to their respective values
- result = write_efs_boolean_property(efs_enabled_property, efs_data->encrypted_fs_mode);
- if (result != 0) {
- return result;
- }
-
- // Signal "transition" of Encrypted File System settings
- result = write_efs_boolean_property(efs_transition_property, 1);
- if (result != 0) {
- return result;
- }
-
- result = ensure_root_path_unmounted("DATA:");
- if (result != 0) {
- LOGE("Encrypted FS: error unmounting data partition.");
- return EFS_ERROR;
- }
-
- return EFS_OK;
-}
-