upload android base code part6

android/device/generic/goldfish/gatekeeper/module.cpp

@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2015 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 <hardware/hardware.h>
+#include <hardware/gatekeeper.h>
+#define LOG_TAG "GoldfishGatekeeper"
+#include <cutils/log.h>
+
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "SoftGateKeeper.h"
+#include "SoftGateKeeperDevice.h"
+
+using goldfish::SoftGateKeeperDevice;
+
+struct goldfish_gatekeeper_device {
+    gatekeeper_device device;
+    SoftGateKeeperDevice *s_gatekeeper;
+};
+
+static goldfish_gatekeeper_device s_device;
+
+static int enroll(const struct gatekeeper_device *dev __unused, uint32_t uid,
+            const uint8_t *current_password_handle, uint32_t current_password_handle_length,
+            const uint8_t *current_password, uint32_t current_password_length,
+            const uint8_t *desired_password, uint32_t desired_password_length,
+            uint8_t **enrolled_password_handle, uint32_t *enrolled_password_handle_length) {
+
+    SoftGateKeeperDevice *s_gatekeeper = ((goldfish_gatekeeper_device*)(dev))->s_gatekeeper;
+    ALOGE("called %s with gate keeper %p device %p\n", __func__, s_gatekeeper, dev);
+    if (s_gatekeeper == nullptr)  {
+        abort();
+        return -EINVAL;
+    }
+
+    return s_gatekeeper->enroll(uid,
+            current_password_handle, current_password_handle_length,
+            current_password, current_password_length,
+            desired_password, desired_password_length,
+            enrolled_password_handle, enrolled_password_handle_length);
+}
+
+static int verify(const struct gatekeeper_device *dev __unused, uint32_t uid, uint64_t challenge,
+            const uint8_t *enrolled_password_handle, uint32_t enrolled_password_handle_length,
+            const uint8_t *provided_password, uint32_t provided_password_length,
+            uint8_t **auth_token, uint32_t *auth_token_length, bool *request_reenroll) {
+    SoftGateKeeperDevice *s_gatekeeper = ((goldfish_gatekeeper_device*)(dev))->s_gatekeeper;
+    ALOGE("called %s with gate keeper %p device %p\n", __func__, s_gatekeeper, dev);
+    if (s_gatekeeper == nullptr) return -EINVAL;
+    return s_gatekeeper->verify(uid, challenge,
+            enrolled_password_handle, enrolled_password_handle_length,
+            provided_password, provided_password_length,
+            auth_token, auth_token_length, request_reenroll);
+}
+
+static int close_device(hw_device_t* dev __unused) {
+    SoftGateKeeperDevice *s_gatekeeper = ((goldfish_gatekeeper_device*)(dev))->s_gatekeeper;
+    if (s_gatekeeper == nullptr) return 0;
+    delete s_gatekeeper;
+    s_gatekeeper = nullptr;
+    ALOGE("called %s with gate keeper %p device %p\n", __func__, s_gatekeeper, dev);
+    return 0;
+}
+
+static int goldfish_gatekeeper_open(const hw_module_t *module, const char *name,
+        hw_device_t **device) {
+
+    if (strcmp(name, HARDWARE_GATEKEEPER) != 0) {
+        abort();
+        return -EINVAL;
+    }
+
+    memset(&s_device, 0, sizeof(s_device));
+
+    SoftGateKeeperDevice *s_gatekeeper = new SoftGateKeeperDevice();
+    if (s_gatekeeper == nullptr) return -ENOMEM;
+
+    s_device.s_gatekeeper = s_gatekeeper;
+
+    s_device.device.common.tag = HARDWARE_DEVICE_TAG;
+    s_device.device.common.version = 1;
+    s_device.device.common.module = const_cast<hw_module_t *>(module);
+    s_device.device.common.close = close_device;
+
+    s_device.device.enroll = enroll;
+    s_device.device.verify = verify;
+    s_device.device.delete_user = nullptr;
+    s_device.device.delete_all_users = nullptr;
+
+    *device = &s_device.device.common;
+    ALOGE("called %s with gate keeper %p device %p\n", __func__, s_gatekeeper, *device);
+
+    return 0;
+}
+
+static struct hw_module_methods_t gatekeeper_module_methods = {
+    .open = goldfish_gatekeeper_open,
+};
+
+struct gatekeeper_module HAL_MODULE_INFO_SYM __attribute__((visibility("default"))) = {
+    .common = {
+        .tag = HARDWARE_MODULE_TAG,
+        .module_api_version = GATEKEEPER_MODULE_API_VERSION_0_1,
+        .hal_api_version = HARDWARE_HAL_API_VERSION,
+        .id = GATEKEEPER_HARDWARE_MODULE_ID,
+        .name = "Goldfish GateKeeper HAL",
+        .author = "The Android Open Source Project",
+        .methods = &gatekeeper_module_methods,
+        .dso = 0,
+        .reserved = {}
+    },
+};