netwerk/sctp/datachannel/DataChannelProtocol.h@deefc01c0e14
netwerk/sctp/datachannel/DataChannelProtocol.h
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_
8 #define NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_
10 #if defined(__GNUC__)
11 #define SCTP_PACKED __attribute__((packed))
12 #elif defined(_MSC_VER)
13 #pragma pack (push, 1)
14 #define SCTP_PACKED
15 #else
16 #error "Unsupported compiler"
17 #endif
19 // Duplicated in fsm.def
20 #define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256
22 #define DATA_CHANNEL_PPID_CONTROL 50
23 #define DATA_CHANNEL_PPID_BINARY 52
24 #define DATA_CHANNEL_PPID_BINARY_LAST 53
25 #define DATA_CHANNEL_PPID_DOMSTRING 54
26 #define DATA_CHANNEL_PPID_DOMSTRING_LAST 51
28 #define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000
30 #define DATA_CHANNEL_FLAGS_SEND_REQ 0x00000001
31 #define DATA_CHANNEL_FLAGS_SEND_RSP 0x00000002
32 #define DATA_CHANNEL_FLAGS_SEND_ACK 0x00000004
33 #define DATA_CHANNEL_FLAGS_OUT_OF_ORDER_ALLOWED 0x00000008
34 #define DATA_CHANNEL_FLAGS_SEND_DATA 0x00000010
35 #define DATA_CHANNEL_FLAGS_FINISH_OPEN 0x00000020
36 #define DATA_CHANNEL_FLAGS_FINISH_RSP 0x00000040
37 #define DATA_CHANNEL_FLAGS_EXTERNAL_NEGOTIATED 0x00000080
38 #define DATA_CHANNEL_FLAGS_WAITING_ACK 0x00000100
40 #define INVALID_STREAM (0xFFFF)
41 // max is 0xFFFF: Streams 0 to 0xFFFE = 0xFFFF streams
42 #define MAX_NUM_STREAMS (2048)
44 struct rtcweb_datachannel_open_request {
45 uint8_t msg_type; // DATA_CHANNEL_OPEN
46 uint8_t channel_type;
47 int16_t priority;
48 uint32_t reliability_param;
49 uint16_t label_length;
50 uint16_t protocol_length;
51 char label[1]; // (and protocol) keep VC++ happy...
52 } SCTP_PACKED;
54 struct rtcweb_datachannel_ack {
55 uint8_t msg_type; // DATA_CHANNEL_ACK
56 } SCTP_PACKED;
58 /* msg_type values: */
59 /* 0-1 were used in an early version of the protocol with 3-way handshakes */
60 #define DATA_CHANNEL_ACK 2
61 #define DATA_CHANNEL_OPEN_REQUEST 3
63 /* channel_type values: */
64 #define DATA_CHANNEL_RELIABLE 0x00
65 #define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT 0x01
66 #define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED 0x02
68 #define DATA_CHANNEL_RELIABLE_UNORDERED 0x80
69 #define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED 0x81
70 #define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED 0x82
72 #define ERR_DATA_CHANNEL_ALREADY_OPEN 1
73 #define ERR_DATA_CHANNEL_NONE_AVAILABLE 2
75 #if defined(_MSC_VER)
76 #pragma pack (pop)
77 #undef SCTP_PACKED
78 #endif
80 #endif
