16ac10d9f7
We want to copy device id to _lastUsedDeviceName variable, but we use length of display name instead of length of device id, which might be longer than expected and we end up reading beyond the source string. Bug: webrtc:15853 Change-Id: Id278ed7e361ead85475910adec18b9db51e6890b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/341521 Commit-Queue: Jan Grulich <grulja@gmail.com> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41844}
118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
/*
|
|
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "modules/video_capture/linux/device_info_pipewire.h"
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/ioctl.h>
|
|
#include <unistd.h>
|
|
|
|
#include <vector>
|
|
|
|
#include "modules/video_capture/linux/pipewire_session.h"
|
|
#include "modules/video_capture/video_capture.h"
|
|
#include "modules/video_capture/video_capture_defines.h"
|
|
#include "modules/video_capture/video_capture_impl.h"
|
|
#include "rtc_base/logging.h"
|
|
|
|
namespace webrtc {
|
|
namespace videocapturemodule {
|
|
DeviceInfoPipeWire::DeviceInfoPipeWire(VideoCaptureOptions* options)
|
|
: DeviceInfoImpl(), pipewire_session_(options->pipewire_session()) {}
|
|
|
|
int32_t DeviceInfoPipeWire::Init() {
|
|
return 0;
|
|
}
|
|
|
|
DeviceInfoPipeWire::~DeviceInfoPipeWire() = default;
|
|
|
|
uint32_t DeviceInfoPipeWire::NumberOfDevices() {
|
|
RTC_CHECK(pipewire_session_);
|
|
|
|
return pipewire_session_->nodes().size();
|
|
}
|
|
|
|
int32_t DeviceInfoPipeWire::GetDeviceName(uint32_t deviceNumber,
|
|
char* deviceNameUTF8,
|
|
uint32_t deviceNameLength,
|
|
char* deviceUniqueIdUTF8,
|
|
uint32_t deviceUniqueIdUTF8Length,
|
|
char* productUniqueIdUTF8,
|
|
uint32_t productUniqueIdUTF8Length) {
|
|
RTC_CHECK(pipewire_session_);
|
|
|
|
if (deviceNumber >= NumberOfDevices())
|
|
return -1;
|
|
|
|
const PipeWireNode& node = pipewire_session_->nodes().at(deviceNumber);
|
|
|
|
if (deviceNameLength <= node.display_name().length()) {
|
|
RTC_LOG(LS_INFO) << "deviceNameUTF8 buffer passed is too small";
|
|
return -1;
|
|
}
|
|
if (deviceUniqueIdUTF8Length <= node.unique_id().length()) {
|
|
RTC_LOG(LS_INFO) << "deviceUniqueIdUTF8 buffer passed is too small";
|
|
return -1;
|
|
}
|
|
if (productUniqueIdUTF8 &&
|
|
productUniqueIdUTF8Length <= node.model_id().length()) {
|
|
RTC_LOG(LS_INFO) << "productUniqueIdUTF8 buffer passed is too small";
|
|
return -1;
|
|
}
|
|
|
|
memset(deviceNameUTF8, 0, deviceNameLength);
|
|
node.display_name().copy(deviceNameUTF8, deviceNameLength);
|
|
|
|
memset(deviceUniqueIdUTF8, 0, deviceUniqueIdUTF8Length);
|
|
node.unique_id().copy(deviceUniqueIdUTF8, deviceUniqueIdUTF8Length);
|
|
|
|
if (productUniqueIdUTF8) {
|
|
memset(productUniqueIdUTF8, 0, productUniqueIdUTF8Length);
|
|
node.model_id().copy(productUniqueIdUTF8, productUniqueIdUTF8Length);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t DeviceInfoPipeWire::CreateCapabilityMap(
|
|
const char* deviceUniqueIdUTF8) {
|
|
RTC_CHECK(pipewire_session_);
|
|
|
|
for (auto& node : pipewire_session_->nodes()) {
|
|
if (node.unique_id().compare(deviceUniqueIdUTF8) != 0)
|
|
continue;
|
|
|
|
_captureCapabilities = node.capabilities();
|
|
_lastUsedDeviceNameLength = node.unique_id().length();
|
|
_lastUsedDeviceName = static_cast<char*>(
|
|
realloc(_lastUsedDeviceName, _lastUsedDeviceNameLength + 1));
|
|
memcpy(_lastUsedDeviceName, deviceUniqueIdUTF8,
|
|
_lastUsedDeviceNameLength + 1);
|
|
return _captureCapabilities.size();
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int32_t DeviceInfoPipeWire::DisplayCaptureSettingsDialogBox(
|
|
const char* /*deviceUniqueIdUTF8*/,
|
|
const char* /*dialogTitleUTF8*/,
|
|
void* /*parentWindow*/,
|
|
uint32_t /*positionX*/,
|
|
uint32_t /*positionY*/) {
|
|
return -1;
|
|
}
|
|
|
|
} // namespace videocapturemodule
|
|
} // namespace webrtc
|