mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
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87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/**
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ISC License
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Copyright © 2015, Iñaki Baz Castillo <ibc@aliax.net>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef MS_RTC_SRTP_SESSION_HPP
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#define MS_RTC_SRTP_SESSION_HPP
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#include "Utils.hpp"
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#include <srtp2/srtp.h>
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#include <vector>
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#include <memory>
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namespace RTC
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{
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class DepLibSRTP : public std::enable_shared_from_this<DepLibSRTP>
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{
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public:
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using Ptr = std::shared_ptr<DepLibSRTP>;
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~DepLibSRTP();
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static bool IsError(srtp_err_status_t code);
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static const char *GetErrorString(srtp_err_status_t code);
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static DepLibSRTP &Instance();
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private:
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DepLibSRTP();
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};
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class SrtpSession
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{
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public:
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enum class CryptoSuite
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{
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NONE = 0,
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AES_CM_128_HMAC_SHA1_80 = 1,
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AES_CM_128_HMAC_SHA1_32,
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AEAD_AES_256_GCM,
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AEAD_AES_128_GCM
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};
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public:
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enum class Type
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{
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INBOUND = 1,
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OUTBOUND
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};
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public:
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SrtpSession(Type type, CryptoSuite cryptoSuite, uint8_t* key, size_t keyLen);
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~SrtpSession();
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public:
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bool EncryptRtp(const uint8_t** data, size_t* len, uint8_t pt);
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bool DecryptSrtp(uint8_t* data, size_t* len);
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bool EncryptRtcp(const uint8_t** data, size_t* len);
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bool DecryptSrtcp(uint8_t* data, size_t* len);
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void RemoveStream(uint32_t ssrc)
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{
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srtp_remove_stream(this->session, uint32_t{ htonl(ssrc) });
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}
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private:
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// Allocated by this.
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srtp_t session{ nullptr };
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//rtp包最大1600
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static constexpr size_t EncryptBufferSize{ 2000 };
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uint8_t EncryptBuffer[EncryptBufferSize];
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DepLibSRTP::Ptr _env;
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};
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} // namespace RTC
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#endif
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