dcb3d15611
Userspace may want to load a different firmware than the one that the kernel requests in some cases, therefore this change adds the ability to ueventd to run an external handler that will determine the name of the file that should actually be loaded. Bug: 138352500 Test: unit tests Change-Id: Ic5da37268fd78109f83ae52d1b903bf7322a5ee5
61 lines
2 KiB
C++
61 lines
2 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <pwd.h>
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#include <string>
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#include <vector>
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#include "result.h"
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#include "uevent.h"
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#include "uevent_handler.h"
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namespace android {
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namespace init {
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struct ExternalFirmwareHandler {
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ExternalFirmwareHandler(std::string devpath, uid_t uid, std::string handler_path)
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: devpath(std::move(devpath)), uid(uid), handler_path(std::move(handler_path)) {}
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std::string devpath;
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uid_t uid;
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std::string handler_path;
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};
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class FirmwareHandler : public UeventHandler {
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public:
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FirmwareHandler(std::vector<std::string> firmware_directories,
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std::vector<ExternalFirmwareHandler> external_firmware_handlers);
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virtual ~FirmwareHandler() = default;
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void HandleUevent(const Uevent& uevent) override;
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private:
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friend void FirmwareTestWithExternalHandler(const std::string& test_name,
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bool expect_new_firmware);
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Result<std::string> RunExternalHandler(const std::string& handler, uid_t uid,
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const Uevent& uevent) const;
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std::string GetFirmwarePath(const Uevent& uevent) const;
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void ProcessFirmwareEvent(const std::string& root, const std::string& firmware) const;
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std::vector<std::string> firmware_directories_;
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std::vector<ExternalFirmwareHandler> external_firmware_handlers_;
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};
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} // namespace init
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} // namespace android
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