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https://github.com/ZLMediaKit/ZLMediaKit.git
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70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#ifndef MS_RTC_SRTP_SESSION_HPP
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#define MS_RTC_SRTP_SESSION_HPP
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#include "utils.h"
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#include <srtp2/srtp.h>
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#include <vector>
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namespace RTC
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{
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class DepLibSRTP {
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public:
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static void ClassInit();
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static void ClassDestroy();
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static bool IsError(srtp_err_status_t code) { return (code != srtp_err_status_ok); }
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static const char *GetErrorString(srtp_err_status_t code) {
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// This throws out_of_range if the given index is not in the vector.
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return DepLibSRTP::errors.at(code);
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}
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private:
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static std::vector<const char *> errors;
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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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static void ClassInit();
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private:
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static void OnSrtpEvent(srtp_event_data_t* data);
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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);
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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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};
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} // namespace RTC
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#endif
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