Move keystore from frameworks/base
Move keystore from frameworks/base at commit
57ff581bd9b16a192a567f84d0e0a5c82d866343
Change-Id: I1e62488d63810f14e40ffb3d192925ff4eeb8906
diff --git a/keystore/keystore_get.h b/keystore/keystore_get.h
new file mode 100644
index 0000000..4b4923e
--- /dev/null
+++ b/keystore/keystore_get.h
@@ -0,0 +1,80 @@
+/*
+ * 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.
+ */
+
+#ifndef __KEYSTORE_GET_H__
+#define __KEYSTORE_GET_H__
+
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <cutils/sockets.h>
+
+#define KEYSTORE_MESSAGE_SIZE 65535
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* This function is provided for native components to get values from keystore.
+ * Users are required to link against libcutils. Keys and values are 8-bit safe.
+ * The first two arguments are the key and its length. The third argument
+ * specifies the buffer to store the retrieved value, which must be an array of
+ * KEYSTORE_MESSAGE_SIZE bytes. This function returns the length of the value or
+ * -1 if an error happens. */
+static int keystore_get(const char *key, int length, char *value)
+{
+ uint8_t bytes[2] = {length >> 8, length};
+ uint8_t code = 'g';
+ int sock;
+
+ if (length < 0 || length > KEYSTORE_MESSAGE_SIZE) {
+ return -1;
+ }
+ sock = socket_local_client("keystore", ANDROID_SOCKET_NAMESPACE_RESERVED,
+ SOCK_STREAM);
+ if (sock == -1) {
+ return -1;
+ }
+ if (send(sock, &code, 1, 0) == 1 && send(sock, bytes, 2, 0) == 2 &&
+ send(sock, key, length, 0) == length && shutdown(sock, SHUT_WR) == 0 &&
+ recv(sock, &code, 1, 0) == 1 && code == /* NO_ERROR */ 1 &&
+ recv(sock, &bytes[0], 1, 0) == 1 && recv(sock, &bytes[1], 1, 0) == 1) {
+ int offset = 0;
+ length = bytes[0] << 8 | bytes[1];
+ while (offset < length) {
+ int n = recv(sock, &value[offset], length - offset, 0);
+ if (n <= 0) {
+ length = -1;
+ break;
+ }
+ offset += n;
+ }
+ } else {
+ length = -1;
+ }
+
+ close(sock);
+ return length;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif