17536ee4bSTim Hardeck /* 27536ee4bSTim Hardeck * QEMU VNC display driver: Websockets support 37536ee4bSTim Hardeck * 47536ee4bSTim Hardeck * Copyright (C) 2010 Joel Martin 57536ee4bSTim Hardeck * Copyright (C) 2012 Tim Hardeck 67536ee4bSTim Hardeck * 77536ee4bSTim Hardeck * This is free software; you can redistribute it and/or modify 87536ee4bSTim Hardeck * it under the terms of the GNU General Public License as published by 97536ee4bSTim Hardeck * the Free Software Foundation; either version 2 of the License, or 107536ee4bSTim Hardeck * (at your option) any later version. 117536ee4bSTim Hardeck * 127536ee4bSTim Hardeck * This software is distributed in the hope that it will be useful, 137536ee4bSTim Hardeck * but WITHOUT ANY WARRANTY; without even the implied warranty of 147536ee4bSTim Hardeck * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 157536ee4bSTim Hardeck * GNU General Public License for more details. 167536ee4bSTim Hardeck * 177536ee4bSTim Hardeck * You should have received a copy of the GNU General Public License 187536ee4bSTim Hardeck * along with this software; if not, see <http://www.gnu.org/licenses/>. 197536ee4bSTim Hardeck */ 207536ee4bSTim Hardeck 217536ee4bSTim Hardeck #ifndef __QEMU_UI_VNC_WS_H 227536ee4bSTim Hardeck #define __QEMU_UI_VNC_WS_H 237536ee4bSTim Hardeck 247536ee4bSTim Hardeck #include <gnutls/gnutls.h> 257536ee4bSTim Hardeck 267536ee4bSTim Hardeck #define B64LEN(__x) (((__x + 2) / 3) * 12 / 3) 277536ee4bSTim Hardeck #define SHA1_DIGEST_LEN 20 287536ee4bSTim Hardeck 297536ee4bSTim Hardeck #define WS_ACCEPT_LEN (B64LEN(SHA1_DIGEST_LEN) + 1) 307536ee4bSTim Hardeck #define WS_CLIENT_KEY_LEN 24 317536ee4bSTim Hardeck #define WS_GUID "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" 327536ee4bSTim Hardeck #define WS_GUID_LEN strlen(WS_GUID) 337536ee4bSTim Hardeck 347536ee4bSTim Hardeck #define WS_HANDSHAKE "HTTP/1.1 101 Switching Protocols\r\n\ 357536ee4bSTim Hardeck Upgrade: websocket\r\n\ 367536ee4bSTim Hardeck Connection: Upgrade\r\n\ 377536ee4bSTim Hardeck Sec-WebSocket-Accept: %s\r\n\ 387536ee4bSTim Hardeck Sec-WebSocket-Protocol: binary\r\n\ 397536ee4bSTim Hardeck \r\n" 407536ee4bSTim Hardeck #define WS_HANDSHAKE_DELIM "\r\n" 417536ee4bSTim Hardeck #define WS_HANDSHAKE_END "\r\n\r\n" 427536ee4bSTim Hardeck #define WS_SUPPORTED_VERSION "13" 437536ee4bSTim Hardeck 447536ee4bSTim Hardeck #define WS_HEAD_MIN_LEN sizeof(uint16_t) 457536ee4bSTim Hardeck #define WS_HEAD_MAX_LEN (WS_HEAD_MIN_LEN + sizeof(uint64_t) + sizeof(uint32_t)) 467536ee4bSTim Hardeck 477536ee4bSTim Hardeck typedef union WsMask { 487536ee4bSTim Hardeck char c[4]; 497536ee4bSTim Hardeck uint32_t u; 507536ee4bSTim Hardeck } WsMask; 517536ee4bSTim Hardeck 527536ee4bSTim Hardeck typedef struct QEMU_PACKED WsHeader { 537536ee4bSTim Hardeck unsigned char b0; 547536ee4bSTim Hardeck unsigned char b1; 557536ee4bSTim Hardeck union { 567536ee4bSTim Hardeck struct QEMU_PACKED { 577536ee4bSTim Hardeck uint16_t l16; 587536ee4bSTim Hardeck WsMask m16; 597536ee4bSTim Hardeck } s16; 607536ee4bSTim Hardeck struct QEMU_PACKED { 617536ee4bSTim Hardeck uint64_t l64; 627536ee4bSTim Hardeck WsMask m64; 637536ee4bSTim Hardeck } s64; 647536ee4bSTim Hardeck WsMask m; 657536ee4bSTim Hardeck } u; 667536ee4bSTim Hardeck } WsHeader; 677536ee4bSTim Hardeck 687536ee4bSTim Hardeck enum { 697536ee4bSTim Hardeck WS_OPCODE_CONTINUATION = 0x0, 707536ee4bSTim Hardeck WS_OPCODE_TEXT_FRAME = 0x1, 717536ee4bSTim Hardeck WS_OPCODE_BINARY_FRAME = 0x2, 727536ee4bSTim Hardeck WS_OPCODE_CLOSE = 0x8, 737536ee4bSTim Hardeck WS_OPCODE_PING = 0x9, 747536ee4bSTim Hardeck WS_OPCODE_PONG = 0xA 757536ee4bSTim Hardeck }; 767536ee4bSTim Hardeck 77*0057a0d5STim Hardeck #ifdef CONFIG_VNC_TLS 78*0057a0d5STim Hardeck void vncws_tls_handshake_peek(void *opaque); 79*0057a0d5STim Hardeck #endif /* CONFIG_VNC_TLS */ 807536ee4bSTim Hardeck void vncws_handshake_read(void *opaque); 817536ee4bSTim Hardeck long vnc_client_write_ws(VncState *vs); 827536ee4bSTim Hardeck long vnc_client_read_ws(VncState *vs); 837536ee4bSTim Hardeck void vncws_process_handshake(VncState *vs, uint8_t *line, size_t size); 847536ee4bSTim Hardeck void vncws_encode_frame(Buffer *output, const void *payload, 857536ee4bSTim Hardeck const size_t payload_size); 867536ee4bSTim Hardeck int vncws_decode_frame(Buffer *input, uint8_t **payload, 877536ee4bSTim Hardeck size_t *payload_size, size_t *frame_size); 887536ee4bSTim Hardeck 897536ee4bSTim Hardeck #endif /* __QEMU_UI_VNC_WS_H */ 90