netwerk/sctp/datachannel/DataChannelProtocol.h@ca08bd8f51b2 (annotated)
netwerk/sctp/datachannel/DataChannelProtocol.h
Wed, 31 Dec 2014 06:55:46 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:46 +0100
- changeset 1
- ca08bd8f51b2
- permissions
- -rw-r--r--
Added tag TORBROWSER_REPLICA for changeset 6474c204b198
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 5 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ |
| michael@0 | 8 | #define NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ |
| michael@0 | 9 | |
| michael@0 | 10 | #if defined(__GNUC__) |
| michael@0 | 11 | #define SCTP_PACKED __attribute__((packed)) |
| michael@0 | 12 | #elif defined(_MSC_VER) |
| michael@0 | 13 | #pragma pack (push, 1) |
| michael@0 | 14 | #define SCTP_PACKED |
| michael@0 | 15 | #else |
| michael@0 | 16 | #error "Unsupported compiler" |
| michael@0 | 17 | #endif |
| michael@0 | 18 | |
| michael@0 | 19 | // Duplicated in fsm.def |
| michael@0 | 20 | #define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256 |
| michael@0 | 21 | |
| michael@0 | 22 | #define DATA_CHANNEL_PPID_CONTROL 50 |
| michael@0 | 23 | #define DATA_CHANNEL_PPID_BINARY 52 |
| michael@0 | 24 | #define DATA_CHANNEL_PPID_BINARY_LAST 53 |
| michael@0 | 25 | #define DATA_CHANNEL_PPID_DOMSTRING 54 |
| michael@0 | 26 | #define DATA_CHANNEL_PPID_DOMSTRING_LAST 51 |
| michael@0 | 27 | |
| michael@0 | 28 | #define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000 |
| michael@0 | 29 | |
| michael@0 | 30 | #define DATA_CHANNEL_FLAGS_SEND_REQ 0x00000001 |
| michael@0 | 31 | #define DATA_CHANNEL_FLAGS_SEND_RSP 0x00000002 |
| michael@0 | 32 | #define DATA_CHANNEL_FLAGS_SEND_ACK 0x00000004 |
| michael@0 | 33 | #define DATA_CHANNEL_FLAGS_OUT_OF_ORDER_ALLOWED 0x00000008 |
| michael@0 | 34 | #define DATA_CHANNEL_FLAGS_SEND_DATA 0x00000010 |
| michael@0 | 35 | #define DATA_CHANNEL_FLAGS_FINISH_OPEN 0x00000020 |
| michael@0 | 36 | #define DATA_CHANNEL_FLAGS_FINISH_RSP 0x00000040 |
| michael@0 | 37 | #define DATA_CHANNEL_FLAGS_EXTERNAL_NEGOTIATED 0x00000080 |
| michael@0 | 38 | #define DATA_CHANNEL_FLAGS_WAITING_ACK 0x00000100 |
| michael@0 | 39 | |
| michael@0 | 40 | #define INVALID_STREAM (0xFFFF) |
| michael@0 | 41 | // max is 0xFFFF: Streams 0 to 0xFFFE = 0xFFFF streams |
| michael@0 | 42 | #define MAX_NUM_STREAMS (2048) |
| michael@0 | 43 | |
| michael@0 | 44 | struct rtcweb_datachannel_open_request { |
| michael@0 | 45 | uint8_t msg_type; // DATA_CHANNEL_OPEN |
| michael@0 | 46 | uint8_t channel_type; |
| michael@0 | 47 | int16_t priority; |
| michael@0 | 48 | uint32_t reliability_param; |
| michael@0 | 49 | uint16_t label_length; |
| michael@0 | 50 | uint16_t protocol_length; |
| michael@0 | 51 | char label[1]; // (and protocol) keep VC++ happy... |
| michael@0 | 52 | } SCTP_PACKED; |
| michael@0 | 53 | |
| michael@0 | 54 | struct rtcweb_datachannel_ack { |
| michael@0 | 55 | uint8_t msg_type; // DATA_CHANNEL_ACK |
| michael@0 | 56 | } SCTP_PACKED; |
| michael@0 | 57 | |
| michael@0 | 58 | /* msg_type values: */ |
| michael@0 | 59 | /* 0-1 were used in an early version of the protocol with 3-way handshakes */ |
| michael@0 | 60 | #define DATA_CHANNEL_ACK 2 |
| michael@0 | 61 | #define DATA_CHANNEL_OPEN_REQUEST 3 |
| michael@0 | 62 | |
| michael@0 | 63 | /* channel_type values: */ |
| michael@0 | 64 | #define DATA_CHANNEL_RELIABLE 0x00 |
| michael@0 | 65 | #define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT 0x01 |
| michael@0 | 66 | #define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED 0x02 |
| michael@0 | 67 | |
| michael@0 | 68 | #define DATA_CHANNEL_RELIABLE_UNORDERED 0x80 |
| michael@0 | 69 | #define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED 0x81 |
| michael@0 | 70 | #define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED 0x82 |
| michael@0 | 71 | |
| michael@0 | 72 | #define ERR_DATA_CHANNEL_ALREADY_OPEN 1 |
| michael@0 | 73 | #define ERR_DATA_CHANNEL_NONE_AVAILABLE 2 |
| michael@0 | 74 | |
| michael@0 | 75 | #if defined(_MSC_VER) |
| michael@0 | 76 | #pragma pack (pop) |
| michael@0 | 77 | #undef SCTP_PACKED |
| michael@0 | 78 | #endif |
| michael@0 | 79 | |
| michael@0 | 80 | #endif |
