1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/datachannel/DataChannelProtocol.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,80 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_
1.11 +#define NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_
1.12 +
1.13 +#if defined(__GNUC__)
1.14 +#define SCTP_PACKED __attribute__((packed))
1.15 +#elif defined(_MSC_VER)
1.16 +#pragma pack (push, 1)
1.17 +#define SCTP_PACKED
1.18 +#else
1.19 +#error "Unsupported compiler"
1.20 +#endif
1.21 +
1.22 +// Duplicated in fsm.def
1.23 +#define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256
1.24 +
1.25 +#define DATA_CHANNEL_PPID_CONTROL 50
1.26 +#define DATA_CHANNEL_PPID_BINARY 52
1.27 +#define DATA_CHANNEL_PPID_BINARY_LAST 53
1.28 +#define DATA_CHANNEL_PPID_DOMSTRING 54
1.29 +#define DATA_CHANNEL_PPID_DOMSTRING_LAST 51
1.30 +
1.31 +#define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000
1.32 +
1.33 +#define DATA_CHANNEL_FLAGS_SEND_REQ 0x00000001
1.34 +#define DATA_CHANNEL_FLAGS_SEND_RSP 0x00000002
1.35 +#define DATA_CHANNEL_FLAGS_SEND_ACK 0x00000004
1.36 +#define DATA_CHANNEL_FLAGS_OUT_OF_ORDER_ALLOWED 0x00000008
1.37 +#define DATA_CHANNEL_FLAGS_SEND_DATA 0x00000010
1.38 +#define DATA_CHANNEL_FLAGS_FINISH_OPEN 0x00000020
1.39 +#define DATA_CHANNEL_FLAGS_FINISH_RSP 0x00000040
1.40 +#define DATA_CHANNEL_FLAGS_EXTERNAL_NEGOTIATED 0x00000080
1.41 +#define DATA_CHANNEL_FLAGS_WAITING_ACK 0x00000100
1.42 +
1.43 +#define INVALID_STREAM (0xFFFF)
1.44 +// max is 0xFFFF: Streams 0 to 0xFFFE = 0xFFFF streams
1.45 +#define MAX_NUM_STREAMS (2048)
1.46 +
1.47 +struct rtcweb_datachannel_open_request {
1.48 + uint8_t msg_type; // DATA_CHANNEL_OPEN
1.49 + uint8_t channel_type;
1.50 + int16_t priority;
1.51 + uint32_t reliability_param;
1.52 + uint16_t label_length;
1.53 + uint16_t protocol_length;
1.54 + char label[1]; // (and protocol) keep VC++ happy...
1.55 +} SCTP_PACKED;
1.56 +
1.57 +struct rtcweb_datachannel_ack {
1.58 + uint8_t msg_type; // DATA_CHANNEL_ACK
1.59 +} SCTP_PACKED;
1.60 +
1.61 +/* msg_type values: */
1.62 +/* 0-1 were used in an early version of the protocol with 3-way handshakes */
1.63 +#define DATA_CHANNEL_ACK 2
1.64 +#define DATA_CHANNEL_OPEN_REQUEST 3
1.65 +
1.66 +/* channel_type values: */
1.67 +#define DATA_CHANNEL_RELIABLE 0x00
1.68 +#define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT 0x01
1.69 +#define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED 0x02
1.70 +
1.71 +#define DATA_CHANNEL_RELIABLE_UNORDERED 0x80
1.72 +#define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED 0x81
1.73 +#define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED 0x82
1.74 +
1.75 +#define ERR_DATA_CHANNEL_ALREADY_OPEN 1
1.76 +#define ERR_DATA_CHANNEL_NONE_AVAILABLE 2
1.77 +
1.78 +#if defined(_MSC_VER)
1.79 +#pragma pack (pop)
1.80 +#undef SCTP_PACKED
1.81 +#endif
1.82 +
1.83 +#endif
