mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 16:50:18 +00:00
07ef191b5a
While appending the newly received buffer to ring buffer list, check the size of the first buffer in the ring buffer list. If it is invalid(zero size or exceeding the max allowed size), return failure & clear all the ring buffers. Bug: 232477451 Test: vts test - 1.6/default/tests/runtests.sh Test: Manual - Ran basic wifi tests & checked bugreports Change-Id: Iaa41262f534914b971fe178053f1974248a46e70
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
|
|
* Copyright (C) 2018 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 <android-base/logging.h>
|
|
|
|
#include "ringbuffer.h"
|
|
|
|
namespace android {
|
|
namespace hardware {
|
|
namespace wifi {
|
|
namespace V1_6 {
|
|
namespace implementation {
|
|
|
|
Ringbuffer::Ringbuffer(size_t maxSize) : size_(0), maxSize_(maxSize) {}
|
|
|
|
enum Ringbuffer::AppendStatus Ringbuffer::append(const std::vector<uint8_t>& input) {
|
|
if (input.size() == 0) {
|
|
return AppendStatus::FAIL_IP_BUFFER_ZERO;
|
|
}
|
|
if (input.size() > maxSize_) {
|
|
LOG(INFO) << "Oversized message of " << input.size() << " bytes is dropped";
|
|
return AppendStatus::FAIL_IP_BUFFER_EXCEEDED_MAXSIZE;
|
|
}
|
|
data_.push_back(input);
|
|
size_ += input.size() * sizeof(input[0]);
|
|
while (size_ > maxSize_) {
|
|
if (data_.front().size() <= 0 || data_.front().size() > maxSize_) {
|
|
LOG(ERROR) << "First buffer in the ring buffer is Invalid. Size: "
|
|
<< data_.front().size();
|
|
return AppendStatus::FAIL_RING_BUFFER_CORRUPTED;
|
|
}
|
|
size_ -= data_.front().size() * sizeof(data_.front()[0]);
|
|
data_.pop_front();
|
|
}
|
|
return AppendStatus::SUCCESS;
|
|
}
|
|
|
|
const std::list<std::vector<uint8_t>>& Ringbuffer::getData() const {
|
|
return data_;
|
|
}
|
|
|
|
void Ringbuffer::clear() {
|
|
data_.clear();
|
|
size_ = 0;
|
|
}
|
|
|
|
} // namespace implementation
|
|
} // namespace V1_6
|
|
} // namespace wifi
|
|
} // namespace hardware
|
|
} // namespace android
|