Refactored ViEEncryptionImpl, ViECodecImpl and removed unused SRTP hooks/APIs in ViEEncrption.
Review URL: http://webrtc-codereview.appspot.com/331004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1262 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
mflodman@webrtc.org
parent
898f881e32
commit
c12686c2d0
@ -29,11 +29,6 @@ class VideoEngine;
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class WEBRTC_DLLEXPORT ViEEncryption
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class WEBRTC_DLLEXPORT ViEEncryption
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{
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{
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public:
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public:
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enum
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{
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kMaxSrtpKeyLength = 30
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};
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// Factory for the ViEEncryption sub‐API and increases an internal reference
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// Factory for the ViEEncryption sub‐API and increases an internal reference
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// counter if successful. Returns NULL if the API is not supported or if
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// counter if successful. Returns NULL if the API is not supported or if
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// construction fails.
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// construction fails.
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@ -45,35 +40,6 @@ public:
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// for all sub-API:s before the VideoEngine object can be safely deleted.
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// for all sub-API:s before the VideoEngine object can be safely deleted.
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virtual int Release() = 0;
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virtual int Release() = 0;
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// This function enables SRTP on send packets for a specific channel.
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virtual int EnableSRTPSend(const int videoChannel,
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const CipherTypes cipherType,
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const unsigned int cipherKeyLength,
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const AuthenticationTypes authType,
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const unsigned int authKeyLength,
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const unsigned int authTagLength,
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const SecurityLevels level,
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const unsigned char key[kMaxSrtpKeyLength],
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const bool useForRTCP = false) = 0;
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// This function disables SRTP for the specified channel.
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virtual int DisableSRTPSend(const int videoChannel) = 0;
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// This function enables SRTP on the received packets for a specific
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// channel.
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virtual int EnableSRTPReceive(const int videoChannel,
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const CipherTypes cipherType,
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const unsigned int cipherKeyLength,
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const AuthenticationTypes authType,
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const unsigned int authKeyLength,
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const unsigned int authTagLength,
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const SecurityLevels level,
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const unsigned char key[kMaxSrtpKeyLength],
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const bool useForRTCP = false) = 0;
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// This function disables SRTP on received packets for a specific channel.
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virtual int DisableSRTPReceive(const int videoChannel) = 0;
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// This function registers a encryption derived instance and enables
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// This function registers a encryption derived instance and enables
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// external encryption for the specified channel.
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// external encryption for the specified channel.
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virtual int RegisterExternalEncryption(const int videoChannel,
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virtual int RegisterExternalEncryption(const int videoChannel,
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File diff suppressed because it is too large
Load Diff
@ -8,105 +8,71 @@
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* be found in the AUTHORS file in the root of the source tree.
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* be found in the AUTHORS file in the root of the source tree.
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*/
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*/
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/*
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#ifndef WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_
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* vie_codec_impl.h
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#define WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_
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*/
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#ifndef WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_CODEC_IMPL_H_
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#define WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_CODEC_IMPL_H_
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#include "vie_defines.h"
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#include "typedefs.h"
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#include "typedefs.h"
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#include "vie_ref_count.h"
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#include "video_engine/main/interface/vie_codec.h"
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#include "vie_shared_data.h"
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#include "video_engine/vie_defines.h"
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#include "vie_codec.h"
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#include "video_engine/vie_ref_count.h"
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#include "video_engine/vie_shared_data.h"
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namespace webrtc
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namespace webrtc {
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{
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// ----------------------------------------------------------------------------
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class ViECodecImpl
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// ViECodecImpl
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: public virtual ViESharedData,
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// ----------------------------------------------------------------------------
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public ViECodec,
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public ViERefCount {
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public:
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virtual int Release();
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class ViECodecImpl : public virtual ViESharedData,
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// Implements ViECodec.
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public ViECodec,
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virtual int NumberOfCodecs() const;
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public ViERefCount
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virtual int GetCodec(const unsigned char list_number,
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{
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VideoCodec& video_codec) const;
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public:
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virtual int SetSendCodec(const int video_channel,
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virtual int Release();
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const VideoCodec& video_codec);
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virtual int GetSendCodec(const int video_channel,
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VideoCodec& video_codec) const;
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virtual int SetReceiveCodec(const int video_channel,
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const VideoCodec& video_codec);
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virtual int GetReceiveCodec(const int video_channel,
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VideoCodec& video_codec) const;
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virtual int GetCodecConfigParameters(
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const int video_channel,
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unsigned char config_parameters[kConfigParameterSize],
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unsigned char& config_parameters_size) const;
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virtual int SetImageScaleStatus(const int video_channel, const bool enable);
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virtual int GetSendCodecStastistics(const int video_channel,
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unsigned int& key_frames,
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unsigned int& delta_frames) const;
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virtual int GetReceiveCodecStastistics(const int video_channel,
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unsigned int& key_frames,
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unsigned int& delta_frames) const;
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virtual unsigned int GetDiscardedPackets(const int video_channel) const;
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virtual int SetKeyFrameRequestCallbackStatus(const int video_channel,
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const bool enable);
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virtual int SetSignalKeyPacketLossStatus(const int video_channel,
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const bool enable,
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const bool only_key_frames = false);
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virtual int RegisterEncoderObserver(const int video_channel,
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ViEEncoderObserver& observer);
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virtual int DeregisterEncoderObserver(const int video_channel);
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virtual int RegisterDecoderObserver(const int video_channel,
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ViEDecoderObserver& observer);
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virtual int DeregisterDecoderObserver(const int video_channel);
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virtual int SendKeyFrame(const int video_channel);
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virtual int WaitForFirstKeyFrame(const int video_channel, const bool wait);
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virtual int SetInverseH263Logic(int video_channel, bool enable);
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// Available codecs
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protected:
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virtual int NumberOfCodecs() const;
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ViECodecImpl();
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virtual ~ViECodecImpl();
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virtual int GetCodec(const unsigned char listNumber,
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private:
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VideoCodec& videoCodec) const;
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bool CodecValid(const VideoCodec& video_codec);
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// Codec settings
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virtual int SetSendCodec(const int videoChannel,
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const VideoCodec& videoCodec);
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virtual int GetSendCodec(const int videoChannel,
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VideoCodec& videoCodec) const;
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virtual int SetReceiveCodec(const int videoChannel,
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const VideoCodec& videoCodec);
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virtual int GetReceiveCodec(const int videoChannel,
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VideoCodec& videoCodec) const;
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virtual int GetCodecConfigParameters(
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const int videoChannel,
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unsigned char configParameters[kConfigParameterSize],
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unsigned char& configParametersSize) const;
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// Input image scaling
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virtual int SetImageScaleStatus(const int videoChannel, const bool enable);
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// Codec statistics
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virtual int GetSendCodecStastistics(const int videoChannel,
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unsigned int& keyFrames,
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unsigned int& deltaFrames) const;
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virtual int GetReceiveCodecStastistics(const int videoChannel,
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unsigned int& keyFrames,
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unsigned int& deltaFrames) const;
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virtual unsigned int GetDiscardedPackets(const int videoChannel) const;
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// Callbacks
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virtual int SetKeyFrameRequestCallbackStatus(const int videoChannel,
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const bool enable);
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virtual int SetSignalKeyPacketLossStatus(const int videoChannel,
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const bool enable,
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const bool onlyKeyFrames = false);
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virtual int RegisterEncoderObserver(const int videoChannel,
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ViEEncoderObserver& observer);
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virtual int DeregisterEncoderObserver(const int videoChannel);
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virtual int RegisterDecoderObserver(const int videoChannel,
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ViEDecoderObserver& observer);
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virtual int DeregisterDecoderObserver(const int videoChannel);
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// Key frame settings
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virtual int SendKeyFrame(const int videoChannel);
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virtual int WaitForFirstKeyFrame(const int videoChannel, const bool wait);
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// H263 Specific
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virtual int SetInverseH263Logic(int videoChannel, bool enable);
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protected:
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ViECodecImpl();
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virtual ~ViECodecImpl();
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private:
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bool CodecValid(const VideoCodec& videoCodec);
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};
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};
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} // namespace webrtc
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#endif // WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_CODEC_IMPL_H_
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} // namespace webrtc
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#endif // WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_
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@ -8,536 +8,99 @@
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* be found in the AUTHORS file in the root of the source tree.
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* be found in the AUTHORS file in the root of the source tree.
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*/
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*/
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/*
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#include "video_engine/vie_encryption_impl.h"
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* vie_encryption_impl.cc
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*/
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#include "vie_encryption_impl.h"
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#include "system_wrappers/interface/trace.h"
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#include "video_engine/main/interface/vie_errors.h"
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#include "video_engine/vie_channel.h"
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#include "video_engine/vie_channel_manager.h"
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#include "video_engine/vie_defines.h"
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#include "video_engine/vie_impl.h"
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// Defines
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namespace webrtc {
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#include "vie_defines.h"
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#include "vie_errors.h"
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#include "vie_channel.h"
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#include "vie_channel_manager.h"
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#include "trace.h"
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ViEEncryption* ViEEncryption::GetInterface(VideoEngine* video_engine) {
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#include "vie_impl.h"
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#ifdef WEBRTC_SRTP
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#include "SrtpModule.h"
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#endif
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namespace webrtc
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{
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// ----------------------------------------------------------------------------
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// GetInterface
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// ----------------------------------------------------------------------------
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ViEEncryption* ViEEncryption::GetInterface(VideoEngine* videoEngine)
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{
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#ifdef WEBRTC_VIDEO_ENGINE_ENCRYPTION_API
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#ifdef WEBRTC_VIDEO_ENGINE_ENCRYPTION_API
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if (videoEngine == NULL)
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if (video_engine == NULL) {
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{
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return NULL;
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}
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VideoEngineImpl* vieImpl = reinterpret_cast<VideoEngineImpl*> (videoEngine);
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ViEEncryptionImpl* vieEncryptionImpl = vieImpl;
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(*vieEncryptionImpl)++; // Increase ref count
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return vieEncryptionImpl;
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#else
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return NULL;
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return NULL;
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}
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VideoEngineImpl* vie_impl = reinterpret_cast<VideoEngineImpl*>(video_engine);
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ViEEncryptionImpl* vie_encryption_impl = vie_impl;
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// Increase ref count.
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(*vie_encryption_impl)++;
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return vie_encryption_impl;
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#else
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return NULL;
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#endif
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#endif
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}
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}
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// ----------------------------------------------------------------------------
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int ViEEncryptionImpl::Release() {
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// Release
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WEBRTC_TRACE(kTraceApiCall, kTraceVideo, instance_id_,
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//
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// Releases the interface, i.e. reduces the reference counter. The number of
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// remaining references is returned, -1 if released too many times.
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// ----------------------------------------------------------------------------
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int ViEEncryptionImpl::Release()
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{
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WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo, instance_id_,
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"ViEEncryptionImpl::Release()");
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"ViEEncryptionImpl::Release()");
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(*this)--; // Decrease ref count
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// Decrease ref count.
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(*this)--;
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WebRtc_Word32 refCount = GetCount();
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WebRtc_Word32 ref_count = GetCount();
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if (refCount < 0)
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if (ref_count < 0) {
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{
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WEBRTC_TRACE(kTraceWarning, kTraceVideo, instance_id_,
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WEBRTC_TRACE(webrtc::kTraceWarning, webrtc::kTraceVideo, instance_id_,
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"ViEEncryptionImpl release too many times");
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"ViEEncryptionImpl release too many times");
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SetLastError(kViEAPIDoesNotExist);
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SetLastError(kViEAPIDoesNotExist);
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return -1;
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return -1;
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}
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}
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WEBRTC_TRACE(kTraceInfo, kTraceVideo, instance_id_,
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WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, instance_id_,
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"ViEEncryptionImpl reference count: %d", ref_count);
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"ViEEncryptionImpl reference count: %d", refCount);
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return ref_count;
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return refCount;
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}
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}
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// ----------------------------------------------------------------------------
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ViEEncryptionImpl::ViEEncryptionImpl() {
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// Constructor
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WEBRTC_TRACE(kTraceMemory, kTraceVideo, instance_id_,
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// ----------------------------------------------------------------------------
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ViEEncryptionImpl::ViEEncryptionImpl()
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{
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WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideo, instance_id_,
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"ViEEncryptionImpl::ViEEncryptionImpl() Ctor");
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"ViEEncryptionImpl::ViEEncryptionImpl() Ctor");
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}
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}
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// ----------------------------------------------------------------------------
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ViEEncryptionImpl::~ViEEncryptionImpl() {
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// Destructor
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WEBRTC_TRACE(kTraceMemory, kTraceVideo, instance_id_,
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// ----------------------------------------------------------------------------
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ViEEncryptionImpl::~ViEEncryptionImpl()
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{
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WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideo, instance_id_,
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"ViEEncryptionImpl::~ViEEncryptionImpl() Dtor");
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"ViEEncryptionImpl::~ViEEncryptionImpl() Dtor");
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}
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}
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// ============================================================================
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int ViEEncryptionImpl::RegisterExternalEncryption(const int video_channel,
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// SRTP
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Encryption& encryption) {
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// ============================================================================
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WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(instance_id_, video_channel),
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"RegisterExternalEncryption(video_channel=%d)", video_channel);
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// ----------------------------------------------------------------------------
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ViEChannelManagerScoped cs(channel_manager_);
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// EnableSRTPSend
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ViEChannel* vie_channel = cs.Channel(video_channel);
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//
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if (vie_channel == NULL) {
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// ----------------------------------------------------------------------------
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WEBRTC_TRACE(kTraceError, kTraceVideo,
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ViEId(instance_id_, video_channel), "%s: No channel %d",
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int ViEEncryptionImpl::EnableSRTPSend(
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__FUNCTION__, video_channel);
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const int videoChannel, const CipherTypes cipherType,
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SetLastError(kViEEncryptionInvalidChannelId);
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const unsigned int cipherKeyLength, const AuthenticationTypes authType,
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const unsigned int authKeyLength, const unsigned int authTagLength,
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const SecurityLevels level, const unsigned char key[kViEMaxSrtpKeyLength],
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const bool useForRTCP)
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{
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WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo, instance_id_,
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"EnableSRTPSend(channel=%d, cipherType=%d, cipherKeyLength=%d, "
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"authType=%d, authKeyLength=%d, authTagLength=%d, level=%d, "
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"key=?, RTCP=%s",
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videoChannel, cipherType, cipherKeyLength, authType,
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authKeyLength, authTagLength, level,
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useForRTCP ? "true" : "false");
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#ifdef WEBRTC_SRTP
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if (!IsInitialized())
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{
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SetLastError(kViENotInitialized);
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(instance_id_),
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"%s - ViE instance %d not initialized", __FUNCTION__,
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instance_id_);
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return -1;
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}
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bool cipherAllZero = (kCipherNull == cipherType) && (0 == cipherKeyLength);
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bool authAllZero = (kAuthNull == authType) &&
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(0 == authKeyLength) &&
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(0 == authTagLength);
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// 1. For no protection all cipher and auth must be zero
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// 2. For encryption only all auth must be zero
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// 3. For authentication only all cipher must be zero
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if (((kNoProtection == level) && (!cipherAllZero || !authAllZero))
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|
||||||
|| ((kEncryption == level) && !authAllZero)
|
|
||||||
|| ((kAuthentication == level) && !cipherAllZero))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
" Invalid input argument");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// 16 <= cipherKeyLength <= 256
|
|
||||||
if (((kEncryption == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& ((cipherKeyLength < kViEMinSrtpEncryptLength)
|
|
||||||
|| (cipherKeyLength > kViEMaxSrtpEncryptLength)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
" Invalid cipher key length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// For HMAC_SHA1 auth:
|
|
||||||
// authKeyLength <= 20, authTagLength <= 20
|
|
||||||
if (((kAuthentication == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& (kAuthHmacSha1 == authType)
|
|
||||||
&& ((authKeyLength > kViEMaxSrtpAuthSh1Length)
|
|
||||||
|| (authTagLength > kViEMaxSrtpAuthSh1Length)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
" Invalid auth key or tag length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// For NULL auth:
|
|
||||||
// authKeyLength <= 256, authTagLength <= 12
|
|
||||||
if (((kAuthentication == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& (kAuthNull == authType)
|
|
||||||
&& ((authKeyLength > kViEMaxSrtpKeyAuthNullLength)
|
|
||||||
|| (authTagLength > kViEMaxSrtpTagAuthNullLength)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
" Invalid auth key or tag length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
if (!key)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
" key NULL pointer");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
const SrtpModule::CipherTypes cipher_type =
|
|
||||||
static_cast<const SrtpModule::CipherTypes> (cipherType);
|
|
||||||
const SrtpModule::AuthenticationTypes auth_type =
|
|
||||||
static_cast<const SrtpModule::AuthenticationTypes> (authType);
|
|
||||||
const SrtpModule::SecurityLevels security_level =
|
|
||||||
static_cast<const SrtpModule::SecurityLevels> (level);
|
|
||||||
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (0 != vieChannel->EnableSRTPSend(cipher_type, cipherKeyLength, auth_type,
|
|
||||||
authKeyLength, authTagLength,
|
|
||||||
security_level, key, useForRTCP))
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, instance_id_,
|
|
||||||
"Failed to configure SRTP Encryption for sending");
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceStateInfo, webrtc::kTraceVideo, instance_id_,
|
|
||||||
"SRTP Enabled for sending");
|
|
||||||
return 0;
|
|
||||||
#else
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVoice,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" _SRTP is undefined => _lastError = %d",
|
|
||||||
LastErrorInternal());
|
|
||||||
SetLastError(kViEEncryptionSrtpNotSupported);
|
|
||||||
return -1;
|
return -1;
|
||||||
#endif
|
}
|
||||||
}
|
if (vie_channel->RegisterExternalEncryption(&encryption) != 0) {
|
||||||
|
SetLastError(kViEEncryptionUnknownError);
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
// DisableSRTPSend
|
|
||||||
//
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
|
|
||||||
int ViEEncryptionImpl::DisableSRTPSend(const int videoChannel)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"DisableSRTPSend(videoChannel=%d)", videoChannel);
|
|
||||||
#ifdef WEBRTC_SRTP
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (0 != vieChannel->DisableSRTPSend())
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"Failed to Disable SRTP Encryption for sending");
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceStateInfo, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"SRTP Disabled for sending");
|
|
||||||
return 0;
|
|
||||||
#else
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVoice,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" _SRTP is undefined => _lastError = %d",
|
|
||||||
LastErrorInternal());
|
|
||||||
SetLastError(kViEEncryptionSrtpNotSupported);
|
|
||||||
return -1;
|
return -1;
|
||||||
#endif
|
}
|
||||||
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------
|
int ViEEncryptionImpl::DeregisterExternalEncryption(const int video_channel) {
|
||||||
// EnableSRTPReceive
|
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(instance_id_, video_channel),
|
||||||
//
|
"RegisterExternalEncryption(video_channel=%d)", video_channel);
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
|
|
||||||
int ViEEncryptionImpl::EnableSRTPReceive(
|
ViEChannelManagerScoped cs(channel_manager_);
|
||||||
const int videoChannel, const CipherTypes cipherType,
|
ViEChannel* vie_channel = cs.Channel(video_channel);
|
||||||
const unsigned int cipherKeyLength, const AuthenticationTypes authType,
|
if (vie_channel == NULL) {
|
||||||
const unsigned int authKeyLength, const unsigned int authTagLength,
|
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(instance_id_, video_channel),
|
||||||
const SecurityLevels level,
|
"%s: No channel %d", __FUNCTION__, video_channel);
|
||||||
const unsigned char key[kViEMaxSrtpKeyLength], const bool useForRTCP)
|
SetLastError(kViEEncryptionInvalidChannelId);
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"EnableSRTPReceive(channel=%d, cipherType=%d, "
|
|
||||||
"cipherKeyLength=%d, authType=%d, authKeyLength=%d, "
|
|
||||||
"authTagLength=%d, level=%d, key=?, RTCP=%s)",
|
|
||||||
videoChannel, cipherType, cipherKeyLength, authType,
|
|
||||||
authKeyLength, authTagLength, level,
|
|
||||||
useForRTCP ? "true" : "false");
|
|
||||||
|
|
||||||
#ifdef WEBRTC_SRTP
|
|
||||||
if (!IsInitialized())
|
|
||||||
{
|
|
||||||
SetLastError(kViENotInitialized);
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(instance_id_),
|
|
||||||
"%s - ViE instance %d not initialized", __FUNCTION__,
|
|
||||||
instance_id_);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool cipherAllZero = (kCipherNull == cipherType) && (0 == cipherKeyLength);
|
|
||||||
bool authAllZero = (kAuthNull == authType)
|
|
||||||
&& (0 == authKeyLength)
|
|
||||||
&& (0 == authTagLength);
|
|
||||||
|
|
||||||
// 1. For no protection all cipher and auth must be zero
|
|
||||||
// 2. For encryption only all auth must be zero
|
|
||||||
// 3. For authentication only all cipher must be zero
|
|
||||||
if (((kNoProtection == level) && (!cipherAllZero || !authAllZero)) ||
|
|
||||||
((kEncryption == level) && !authAllZero) ||
|
|
||||||
((kAuthentication == level) && !cipherAllZero))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" Invalid input argument");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// 16 <= cipherKeyLength <= 256
|
|
||||||
if (((kEncryption == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& ((cipherKeyLength < kViEMinSrtpEncryptLength)
|
|
||||||
|| (cipherKeyLength > kViEMaxSrtpEncryptLength)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" Invalid cipher key length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// For HMAC_SHA1 auth:
|
|
||||||
// authKeyLength <= 20, authTagLength <= 20
|
|
||||||
if (((kAuthentication == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& (kAuthHmacSha1 == authType)
|
|
||||||
&& ((authKeyLength > kViEMaxSrtpAuthSh1Length)
|
|
||||||
|| (authTagLength > kViEMaxSrtpAuthSh1Length)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" Invalid auth key or tag length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// For NULL auth:
|
|
||||||
// authKeyLength <= 256, authTagLength <= 12
|
|
||||||
if (((kAuthentication == level) || (kEncryptionAndAuthentication == level))
|
|
||||||
&& (kAuthNull == authType)
|
|
||||||
&& ((authKeyLength > kViEMaxSrtpKeyAuthNullLength)
|
|
||||||
|| (authTagLength > kViEMaxSrtpTagAuthNullLength)))
|
|
||||||
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" Invalid auth key or tag length");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!key)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), " key NULL pointer");
|
|
||||||
SetLastError(kViEEncryptionInvalidSrtpParameter);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
const SrtpModule::CipherTypes cipher_type =
|
|
||||||
static_cast<const SrtpModule::CipherTypes> (cipherType);
|
|
||||||
const SrtpModule::AuthenticationTypes auth_type =
|
|
||||||
static_cast<const SrtpModule::AuthenticationTypes> (authType);
|
|
||||||
const SrtpModule::SecurityLevels security_level =
|
|
||||||
static_cast<const SrtpModule::SecurityLevels> (level);
|
|
||||||
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (0 != vieChannel->EnableSRTPReceive(cipher_type, cipherKeyLength,
|
|
||||||
auth_type, authKeyLength,
|
|
||||||
authTagLength, security_level, key,
|
|
||||||
useForRTCP))
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"Failed to configure SRTP Encryption for receiving");
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceStateInfo, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"SRTP Enabled for receiving");
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
#else
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVoice,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" _SRTP is undefined => _lastError = %d",
|
|
||||||
LastErrorInternal());
|
|
||||||
SetLastError(kViEEncryptionSrtpNotSupported);
|
|
||||||
return -1;
|
return -1;
|
||||||
#endif
|
}
|
||||||
}
|
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------
|
if (vie_channel->DeRegisterExternalEncryption() != 0) {
|
||||||
// DisableSRTPReceive
|
SetLastError(kViEEncryptionUnknownError);
|
||||||
//
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
|
|
||||||
int ViEEncryptionImpl::DisableSRTPReceive(const int videoChannel)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"DisableSRTPReceive(videoChannel=%d)", videoChannel);
|
|
||||||
|
|
||||||
#ifdef WEBRTC_SRTP
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (0 != vieChannel->DisableSRTPReceive())
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"Failed to Disable SRTP Encryption for receiving");
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceStateInfo, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "SRTP Disabled for receiving");
|
|
||||||
return 0;
|
|
||||||
#else
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVoice,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
" _SRTP is undefined => _lastError = %d",
|
|
||||||
LastErrorInternal());
|
|
||||||
SetLastError(kViEEncryptionSrtpNotSupported);
|
|
||||||
return -1;
|
return -1;
|
||||||
#endif
|
}
|
||||||
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
// ============================================================================
|
} // namespace webrtc
|
||||||
// External encryption
|
|
||||||
// ============================================================================
|
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
// RegisterExternalEncryption
|
|
||||||
//
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
|
|
||||||
int ViEEncryptionImpl::RegisterExternalEncryption(const int videoChannel,
|
|
||||||
Encryption& encryption)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"RegisterExternalEncryption(videoChannel=%d)", videoChannel);
|
|
||||||
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
if (vieChannel->RegisterExternalEncryption(&encryption) != 0)
|
|
||||||
{
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
// DeregisterExternalEncryption
|
|
||||||
//
|
|
||||||
// ----------------------------------------------------------------------------
|
|
||||||
|
|
||||||
int ViEEncryptionImpl::DeregisterExternalEncryption(const int videoChannel)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceApiCall, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel),
|
|
||||||
"RegisterExternalEncryption(videoChannel=%d)", videoChannel);
|
|
||||||
|
|
||||||
ViEChannelManagerScoped cs(channel_manager_);
|
|
||||||
ViEChannel* vieChannel = cs.Channel(videoChannel);
|
|
||||||
if (vieChannel == NULL)
|
|
||||||
{
|
|
||||||
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo,
|
|
||||||
ViEId(instance_id_, videoChannel), "%s: No channel %d",
|
|
||||||
__FUNCTION__, videoChannel);
|
|
||||||
SetLastError(kViEEncryptionInvalidChannelId);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (vieChannel->DeRegisterExternalEncryption() != 0)
|
|
||||||
{
|
|
||||||
SetLastError(kViEEncryptionUnknownError);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
} // namespace webrtc
|
|
||||||
|
|||||||
@ -8,68 +8,33 @@
|
|||||||
* be found in the AUTHORS file in the root of the source tree.
|
* be found in the AUTHORS file in the root of the source tree.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
/*
|
#ifndef WEBRTC_VIDEO_ENGINE_VIE_ENCRYPTION_IMPL_H_
|
||||||
* vie_encryption_impl.h
|
#define WEBRTC_VIDEO_ENGINE_VIE_ENCRYPTION_IMPL_H_
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_ENCRYPTION_IMPL_H_
|
|
||||||
#define WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_ENCRYPTION_IMPL_H_
|
|
||||||
|
|
||||||
#include "vie_defines.h"
|
|
||||||
|
|
||||||
#include "typedefs.h"
|
#include "typedefs.h"
|
||||||
#include "vie_ref_count.h"
|
#include "video_engine/main/interface/vie_encryption.h"
|
||||||
#include "vie_encryption.h"
|
#include "video_engine/vie_ref_count.h"
|
||||||
#include "vie_shared_data.h"
|
#include "video_engine/vie_shared_data.h"
|
||||||
|
|
||||||
namespace webrtc
|
namespace webrtc {
|
||||||
{
|
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------
|
class ViEEncryptionImpl
|
||||||
// ViEEncryptionImpl
|
: public virtual ViESharedData,
|
||||||
// ----------------------------------------------------------------------------
|
public ViEEncryption,
|
||||||
|
public ViERefCount {
|
||||||
|
public:
|
||||||
|
virtual int Release();
|
||||||
|
|
||||||
class ViEEncryptionImpl : public virtual ViESharedData,
|
// Implements ViEEncryption.
|
||||||
public ViEEncryption,
|
virtual int RegisterExternalEncryption(const int video_channel,
|
||||||
public ViERefCount
|
Encryption& encryption);
|
||||||
{
|
virtual int DeregisterExternalEncryption(const int video_channel);
|
||||||
public:
|
|
||||||
virtual int Release();
|
|
||||||
|
|
||||||
// SRTP calls
|
protected:
|
||||||
virtual int EnableSRTPSend(const int videoChannel,
|
ViEEncryptionImpl();
|
||||||
const CipherTypes cipherType,
|
virtual ~ViEEncryptionImpl();
|
||||||
const unsigned int cipherKeyLength,
|
|
||||||
const AuthenticationTypes authType,
|
|
||||||
const unsigned int authKeyLength,
|
|
||||||
const unsigned int authTagLength,
|
|
||||||
const SecurityLevels level,
|
|
||||||
const unsigned char key[kViEMaxSrtpKeyLength],
|
|
||||||
const bool useForRTCP);
|
|
||||||
|
|
||||||
virtual int DisableSRTPSend(const int videoChannel);
|
|
||||||
|
|
||||||
virtual int EnableSRTPReceive(const int videoChannel,
|
|
||||||
const CipherTypes cipherType,
|
|
||||||
const unsigned int cipherKeyLength,
|
|
||||||
const AuthenticationTypes authType,
|
|
||||||
const unsigned int authKeyLength,
|
|
||||||
const unsigned int authTagLength,
|
|
||||||
const SecurityLevels level,
|
|
||||||
const unsigned char key[kViEMaxSrtpKeyLength],
|
|
||||||
const bool useForRTCP);
|
|
||||||
|
|
||||||
virtual int DisableSRTPReceive(const int videoChannel);
|
|
||||||
|
|
||||||
// External encryption
|
|
||||||
virtual int RegisterExternalEncryption(const int videoChannel,
|
|
||||||
Encryption& encryption);
|
|
||||||
|
|
||||||
virtual int DeregisterExternalEncryption(const int videoChannel);
|
|
||||||
|
|
||||||
protected:
|
|
||||||
ViEEncryptionImpl();
|
|
||||||
virtual ~ViEEncryptionImpl();
|
|
||||||
};
|
};
|
||||||
} // namespace webrtc
|
|
||||||
#endif // WEBRTC_VIDEO_ENGINE_MAIN_SOURCE_VIE_ENCRYPTION_IMPL_H_
|
} // namespace webrtc
|
||||||
|
|
||||||
|
#endif // WEBRTC_VIDEO_ENGINE_VIE_ENCRYPTION_IMPL_H_
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user