/** RDP连接实例 * 这是创建连接后的客户端选项
* 数据结构申请内存调用freerdp_new，释放为freerdp_free */ struct rdp_freerdp { ALIGN64 rdpContext* context; /**< (offset 0) 一个指向rdpContext的结构. 客户端应用可以注册大于rdpContext结构的字段，
这里允许客户端使用附加的消息。
当使用这个模块的时候， client application should ALWAYS declare their structure with the rdpContext field first, and any additional content following it. Can be allocated by a call to freerdp_context_new(). Must be deallocated by a call to freerdp_context_free() before deallocating the current instance. */ ALIGN64 RDP_CLIENT_ENTRY_POINTS* pClientEntryPoints; UINT64 paddingA[16 - 2]; /* 2 */ ALIGN64 rdpInput* input; /* (offset 16) Input handle for the connection. Will be initialized by a call to freerdp_context_new() */ ALIGN64 rdpUpdate* update; /* (offset 17) Update display parameters. Used to register display events callbacks and settings. Will be initialized by a call to freerdp_context_new() */ ALIGN64 rdpSettings* settings; /**< (offset 18) Pointer to a rdpSettings structure. Will be used to maintain the required RDP settings. Will be initialized by a call to freerdp_context_new() */ ALIGN64 rdpAutoDetect* autodetect; /* (offset 19) Auto-Detect handle for the connection. Will be initialized by a call to freerdp_context_new() */ UINT64 paddingB[32 - 20]; /* 20 */ ALIGN64 size_t ContextSize; /* (offset 32) Specifies the size of the 'context' field. freerdp_context_new() will use this size to allocate the context buffer. freerdp_new() sets it to sizeof(rdpContext). If modifying it, there should always be a minimum of sizeof(rdpContext), as the freerdp library will assume it can use the 'context' field to set the required informations in it. Clients will typically make it bigger, and use a context structure embedding the rdpContext, and adding additional information after that. */ ALIGN64 pContextNew ContextNew; /**< (offset 33) Callback for context allocation Can be set before calling freerdp_context_new() to have it executed after allocation and initialization. Must be set to NULL if not needed. */ ALIGN64 pContextFree ContextFree; /**< (offset 34) Callback for context deallocation Can be set before calling freerdp_context_free() to have it executed before deallocation. Must be set to NULL if not needed. */ UINT64 paddingC[47 - 35]; /* 35 */ ALIGN64 UINT ConnectionCallbackState; /* 47 */ ALIGN64 pPreConnect PreConnect; /**< (offset 48) Callback for pre-connect operations. Can be set before calling freerdp_connect() to have it executed before the actual connection happens. Must be set to NULL if not needed. */ ALIGN64 pPostConnect PostConnect; /**< (offset 49) Callback for post-connect operations. Can be set before calling freerdp_connect() to have it executed after the actual connection has succeeded. Must be set to NULL if not needed. */ ALIGN64 pAuthenticate Authenticate; /**< (offset 50) Callback for authentication. It is used to get the username/password when it was not provided at connection time. */ ALIGN64 pVerifyCertificate VerifyCertificate; /**< (offset 51) Callback for certificate validation. Used to verify that an unknown certificate is trusted. DEPRECATED: Use VerifyChangedCertificateEx*/ ALIGN64 pVerifyChangedCertificate VerifyChangedCertificate; /**< (offset 52) Callback for changed certificate validation. Used when a certificate differs from stored fingerprint. DEPRECATED: Use VerifyChangedCertificateEx */ ALIGN64 pVerifyX509Certificate VerifyX509Certificate; /**< (offset 53) Callback for X509 certificate verification (PEM format) */ ALIGN64 pLogonErrorInfo LogonErrorInfo; /**< (offset 54) Callback for logon error info, important for logon system messages with RemoteApp */ ALIGN64 pPostDisconnect PostDisconnect; /**< (offset 55) Callback for cleaning up resources allocated by connect callbacks. */ ALIGN64 pAuthenticate GatewayAuthenticate; /**< (offset 56) Callback for gateway authentication. It is used to get the username/password when it was not provided at connection time. */ ALIGN64 pPresentGatewayMessage PresentGatewayMessage; /**< (offset 57) Callback for gateway consent messages. It is used to present consent messages to the user. */ UINT64 paddingD[64 - 58]; /* 58 */ ALIGN64 pSendChannelData SendChannelData; /* (offset 64) Callback for sending data to a channel. By default, it is set by freerdp_new() to freerdp_send_channel_data(), which eventually calls freerdp_channel_send() */ ALIGN64 pReceiveChannelData ReceiveChannelData; /* (offset 65) Callback for receiving data from a channel. This is called by freerdp_channel_process() (if not NULL). Clients will typically use a function that calls freerdp_channels_data() to perform the needed tasks. */ ALIGN64 pVerifyCertificateEx VerifyCertificateEx; /**< (offset 66) Callback for certificate validation. Used to verify that an unknown certificate is trusted. */ ALIGN64 pVerifyChangedCertificateEx VerifyChangedCertificateEx; /**< (offset 67) Callback for changed certificate validation. Used when a certificate differs from stored fingerprint. */ UINT64 paddingE[80 - 68]; /* 68 */ };
struct rdp_context { ALIGN64 freerdp* instance; /**< (offset 0) Pointer to a rdp_freerdp structure. This is a back-link to retrieve the freerdp instance from the context. It is set by the freerdp_context_new() function */ ALIGN64 freerdp_peer* peer; /**< (offset 1) Pointer to the client peer. This is set by a call to freerdp_peer_context_new() during peer initialization. This field is used only on the server side. */ ALIGN64 BOOL ServerMode; /**< (offset 2) true when context is in server mode */ ALIGN64 UINT32 LastError; /* 3 */ UINT64 paddingA[16 - 4]; /* 4 */ ALIGN64 int argc; /**< (offset 16) Number of arguments given to the program at launch time. Used to keep this data available and used later on, typically just before connection initialization. @see freerdp_parse_args() */ ALIGN64 char** argv; /**< (offset 17) List of arguments given to the program at launch time. Used to keep this data available and used later on, typically just before connection initialization. @see freerdp_parse_args() */ ALIGN64 wPubSub* pubSub; /* (offset 18) */ ALIGN64 HANDLE channelErrorEvent; /* (offset 19)*/ ALIGN64 UINT channelErrorNum; /*(offset 20)*/ ALIGN64 char* errorDescription; /*(offset 21)*/ UINT64 paddingB[32 - 22]; /* 22 */ ALIGN64 rdpRdp* rdp; /**< (offset 32) Pointer to a rdp_rdp structure used to keep the connection's parameters. It is allocated by freerdp_context_new() and deallocated by freerdp_context_free(), at the same time that this rdp_context structure - there is no need to specifically allocate/deallocate this. */ ALIGN64 rdpGdi* gdi; /**< (offset 33) Pointer to a rdp_gdi structure used to keep the gdi settings. It is allocated by gdi_init() and deallocated by gdi_free(). It must be deallocated before deallocating this rdp_context structure. */ ALIGN64 rdpRail* rail; /* 34 */ ALIGN64 rdpCache* cache; /* 35 */ ALIGN64 rdpChannels* channels; /* 36 */ ALIGN64 rdpGraphics* graphics; /* 37 */ ALIGN64 rdpInput* input; /* 38 */ ALIGN64 rdpUpdate* update; /* 39 */ ALIGN64 rdpSettings* settings; /* 40 */ ALIGN64 rdpMetrics* metrics; /* 41 */ ALIGN64 rdpCodecs* codecs; /* 42 */ ALIGN64 rdpAutoDetect* autodetect; /* 43 */ ALIGN64 HANDLE abortEvent; /* 44 */ ALIGN64 int disconnectUltimatum; /* 45 */ UINT64 paddingC[64 - 46]; /* 46 */ UINT64 paddingD[96 - 64]; /* 64 */ UINT64 paddingE[128 - 96]; /* 96 */ };
client