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comparison: netwerk/sctp/datachannel/DataChannelProtocol.h
netwerk/sctp/datachannel/DataChannelProtocol.h
- changeset 1
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| 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/. */ | |
| 6 | |
| 7 #ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ | |
| 8 #define NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ | |
| 9 | |
| 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 | |
| 18 | |
| 19 // Duplicated in fsm.def | |
| 20 #define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256 | |
| 21 | |
| 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 | |
| 27 | |
| 28 #define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000 | |
| 29 | |
| 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 | |
| 39 | |
| 40 #define INVALID_STREAM (0xFFFF) | |
| 41 // max is 0xFFFF: Streams 0 to 0xFFFE = 0xFFFF streams | |
| 42 #define MAX_NUM_STREAMS (2048) | |
| 43 | |
| 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; | |
| 53 | |
| 54 struct rtcweb_datachannel_ack { | |
| 55 uint8_t msg_type; // DATA_CHANNEL_ACK | |
| 56 } SCTP_PACKED; | |
| 57 | |
| 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 | |
| 62 | |
| 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 | |
| 67 | |
| 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 | |
| 71 | |
| 72 #define ERR_DATA_CHANNEL_ALREADY_OPEN 1 | |
| 73 #define ERR_DATA_CHANNEL_NONE_AVAILABLE 2 | |
| 74 | |
| 75 #if defined(_MSC_VER) | |
| 76 #pragma pack (pop) | |
| 77 #undef SCTP_PACKED | |
| 78 #endif | |
| 79 | |
| 80 #endif |
