mirror of
https://github.com/morgan9e/FreeRDP
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79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Websocket Framing
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*
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* Copyright 2023 Michael Saxl <mike@mwsys.mine.bz>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FREERDP_LIB_CORE_GATEWAY_WEBSOCKET_H
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#define FREERDP_LIB_CORE_GATEWAY_WEBSOCKET_H
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#include <winpr/wtypes.h>
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#include <winpr/stream.h>
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#include <freerdp/api.h>
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#include "../../crypto/tls.h"
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#define WEBSOCKET_MASK_BIT 0x80
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#define WEBSOCKET_FIN_BIT 0x80
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typedef enum
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{
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WebsocketContinuationOpcode = 0x0,
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WebsocketTextOpcode = 0x1,
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WebsocketBinaryOpcode = 0x2,
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WebsocketCloseOpcode = 0x8,
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WebsocketPingOpcode = 0x9,
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WebsocketPongOpcode = 0xa,
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} WEBSOCKET_OPCODE;
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typedef enum
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{
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WebsocketStateOpcodeAndFin,
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WebsocketStateLengthAndMasking,
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WebsocketStateShortLength,
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WebsocketStateLongLength,
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WebSocketStateMaskingKey,
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WebSocketStatePayload,
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} WEBSOCKET_STATE;
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typedef struct s_websocket_context websocket_context;
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FREERDP_LOCAL void websocket_context_free(websocket_context* context);
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WINPR_ATTR_MALLOC(websocket_context_free, 1)
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WINPR_ATTR_NODISCARD
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FREERDP_LOCAL websocket_context* websocket_context_new(void);
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FREERDP_LOCAL BOOL websocket_context_reset(websocket_context* context);
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FREERDP_LOCAL BOOL websocket_context_write_wstream(websocket_context* context, BIO* bio,
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wStream* sPacket, WEBSOCKET_OPCODE opcode);
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FREERDP_LOCAL int websocket_context_write(websocket_context* context, BIO* bio, const BYTE* buf,
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int isize, WEBSOCKET_OPCODE opcode);
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FREERDP_LOCAL int websocket_context_read(websocket_context* encodingContext, BIO* bio,
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BYTE* pBuffer, size_t size);
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WINPR_ATTR_MALLOC(Stream_Free, 1)
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WINPR_ATTR_NODISCARD
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FREERDP_LOCAL wStream* websocket_context_packet_new(size_t len, WEBSOCKET_OPCODE opcode,
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UINT32* pMaskingKey);
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FREERDP_LOCAL BOOL websocket_context_mask_and_send(BIO* bio, wStream* sPacket, wStream* sDataPacket,
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UINT32 maskingKey);
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#endif /* FREERDP_LIB_CORE_GATEWAY_WEBSOCKET_H */
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