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Diffstat (limited to 'trusty/keymaster/legacy/module.cpp')
-rw-r--r-- | trusty/keymaster/legacy/module.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/trusty/keymaster/legacy/module.cpp b/trusty/keymaster/legacy/module.cpp new file mode 100644 index 000000000..7aa1a4eaa --- /dev/null +++ b/trusty/keymaster/legacy/module.cpp @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2014 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 <errno.h> +#include <string.h> + +#include <hardware/hardware.h> +#include <hardware/keymaster0.h> + +#include <trusty_keymaster/legacy/trusty_keymaster_device.h> + +using keymaster::TrustyKeymasterDevice; + +/* + * Generic device handling + */ +static int trusty_keymaster_open(const hw_module_t* module, const char* name, + hw_device_t** device) { + if (strcmp(name, KEYSTORE_KEYMASTER) != 0) { + return -EINVAL; + } + + TrustyKeymasterDevice* dev = new TrustyKeymasterDevice(module); + if (dev == NULL) { + return -ENOMEM; + } + *device = dev->hw_device(); + // Do not delete dev; it will get cleaned up when the caller calls device->close(), and must + // exist until then. + return 0; +} + +static struct hw_module_methods_t keystore_module_methods = { + .open = trusty_keymaster_open, +}; + +struct keystore_module HAL_MODULE_INFO_SYM __attribute__((visibility("default"))) = { + .common = + { + .tag = HARDWARE_MODULE_TAG, + .module_api_version = KEYMASTER_MODULE_API_VERSION_2_0, + .hal_api_version = HARDWARE_HAL_API_VERSION, + .id = KEYSTORE_HARDWARE_MODULE_ID, + .name = "Trusty Keymaster HAL", + .author = "The Android Open Source Project", + .methods = &keystore_module_methods, + .dso = 0, + .reserved = {}, + }, +}; |