/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2022, Ideas on Board Oy. * * libcamera V4L2 dequeue watchdog test */ #include #include #include #include #include #include "v4l2_videodevice_test.h" using namespace libcamera; using namespace std::chrono_literals; class DequeueWatchdogTest : public V4L2VideoDeviceTest { public: DequeueWatchdogTest() : V4L2VideoDeviceTest("vimc", "Raw Capture 0"), frames_(0), barks_(0) {} protected: int run() { constexpr unsigned int bufferCount = 8; EventDispatcher *dispatcher = Thread::current()->eventDispatcher(); Timer timeout; int ret = capture_->allocateBuffers(bufferCount, &buffers_); if (ret < 0) { std::cout << "Failed to allocate buffers" << std::endl; return TestFail; } capture_->dequeueTimeout.connect(this, &DequeueWatchdogTest::barkCounter); capture_->setDequeueTimeout(5ms); capture_->bufferReady.connect(this, &DequeueWatchdogTest::receiveBuffer); for (const std::unique_ptr &buffer : buffers_) { if (capture_->queueBuffer(buffer.get())) { std::cout << "Failed to queue buffer" << std::endl; return TestFail; } } ret = capture_->streamOn(); if (ret < 0) { std::cout << "Failed to start streaming" << std::endl; return TestFail; } timeout.start(5s); while (timeout.isRunning()) { dispatcher->processEvents(); if (frames_ > 5) break; } std::cout << "Processed " << frames_ << " frames_ and heard " << barks_ << " barks_" << std::endl; if (!barks_) { std::cout << "Failed to hear any barks_." << std::endl; return TestFail; } capture_->streamOff(); return TestPass; } private: void receiveBuffer(FrameBuffer *buffer) { if (buffer->metadata().status == FrameMetadata::FrameCancelled) return; std::cout << "Buffer received" << std::endl; frames_++; /* Requeue the buffer for further use. */ capture_->queueBuffer(buffer); } void barkCounter() { std::cout << "Watchdog is barking" << std::endl; barks_++; } unsigned int frames_; unsigned int barks_; }; TEST_REGISTER(DequeueWatchdogTest) '>diff
path: root/src/libcamera/pub_key.cpp
blob: 9bb08fda34af4cfb66e66e8725249d9a0216a7d0 (plain) 
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2020, Google Inc.
 *
 * pub_key.cpp - Public key signature verification
 */

#include "libcamera/internal/pub_key.h"

#if HAVE_GNUTLS
#include <gnutls/abstract.h>
#endif

/**
 * \file pub_key.h
 * \brief Public key signature verification
 */

namespace libcamera {

/**
 * \class PubKey
 * \brief Public key wrapper for signature verification
 *
 * The PubKey class wraps a public key and implements signature verification. It
 * only supports RSA keys and the RSA-SHA256 signature algorithm.
 */

/**
 * \brief Construct a PubKey from key data
 * \param[in] key Key data encoded in DER format
 */
PubKey::PubKey([[maybe_unused]] Span<const uint8_t> key)
	: valid_(false)
{
#if HAVE_GNUTLS
	int ret = gnutls_pubkey_init(&pubkey_);
	if (ret < 0)
		return;

	const gnutls_datum_t gnuTlsKey{
		const_cast<unsigned char *>(key.data()),
		static_cast<unsigned int>(key.size())
	};
	ret = gnutls_pubkey_import(pubkey_, &gnuTlsKey, GNUTLS_X509_FMT_DER);
	if (ret < 0)
		return;

	valid_ = true;
#endif
}

PubKey::~PubKey()
{
#if HAVE_GNUTLS
	gnutls_pubkey_deinit(pubkey_);
#endif
}

/**
 * \fn bool PubKey::isValid() const
 * \brief Check is the public key is valid
 * \return True if the public key is valid, false otherwise
 */

/**
 * \brief Verify signature on data
 * \param[in] data The signed data
 * \param[in] sig The signature
 *
 * Verify that the signature \a sig matches the signed \a data for the public
 * key. The signture algorithm is hardcoded to RSA-SHA256.
 *