1 files changed, 48 insertions, 0 deletions
diff --git a/cryptfshw/1.0/CryptfsHwUtils.cpp b/cryptfshw/1.0/CryptfsHwUtils.cpp
new file mode 100644
index 0000000..8efbe68
--- /dev/null
+++ b/cryptfshw/1.0/CryptfsHwUtils.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2019 The LineageOS 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 "CryptfsHwUtils.h"
+
+#include <algorithm>
+#include <cstring>
+
+namespace vendor {
+namespace qti {
+namespace hardware {
+namespace cryptfshw {
+namespace V1_0 {
+namespace implementation {
+
+void* secure_memset(void* v, int c, size_t n) {
+    auto p = reinterpret_cast<volatile unsigned char*>(v);
+    while (n--) *p++ = c;
+    return v;
+}
+
+void GetTmpPasswd(const char* passwd, unsigned char* tmp_passwd, size_t buf_len) {
+    secure_memset(tmp_passwd, 0, buf_len);
+    if (passwd) {
+        size_t passwd_len = strnlen(passwd, buf_len);
+        memcpy(tmp_passwd, passwd, passwd_len);
+    }
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace cryptfshw
+}  // namespace hardware
+}  // namespace qti
+}  // namespace vendor