1/*
2 * Wslay - The WebSocket Library
3 *
4 * Copyright (c) 2011, 2012 Tatsuhiro Tsujikawa
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25#ifndef WSLAY_FRAME_H
26#define WSLAY_FRAME_H
27
28#ifdef HAVE_CONFIG_H
29# include <config.h>
30#endif /* HAVE_CONFIG_H */
31
32#include <wslay/wslay.h>
33
34enum wslay_frame_state {
35 PREP_HEADER,
36 PREP_HEADER_NOBUF,
37 SEND_HEADER,
38 SEND_PAYLOAD,
39 RECV_HEADER1,
40 RECV_PAYLOADLEN,
41 RECV_EXT_PAYLOADLEN,
42 RECV_MASKKEY,
43 RECV_PAYLOAD
44};
45
46struct wslay_frame_opcode_memo {
47 uint8_t fin;
48 uint8_t opcode;
49 uint8_t rsv;
50};
51
52struct wslay_frame_context {
53 uint8_t ibuf[4096];
54 uint8_t *ibufmark;
55 uint8_t *ibuflimit;
56 struct wslay_frame_opcode_memo iom;
57 uint64_t ipayloadlen;
58 uint64_t ipayloadoff;
59 uint8_t imask;
60 uint8_t imaskkey[4];
61 enum wslay_frame_state istate;
62 size_t ireqread;
63
64 uint8_t oheader[14];
65 uint8_t *oheadermark;
66 uint8_t *oheaderlimit;
67 uint64_t opayloadlen;
68 uint64_t opayloadoff;
69 uint8_t omask;
70 uint8_t omaskkey[4];
71 enum wslay_frame_state ostate;
72
73 struct wslay_frame_callbacks callbacks;
74 void *user_data;
75};
76
77#endif /* WSLAY_FRAME_H */
78