diff options
Diffstat (limited to 'netwerk/sctp/datachannel/DataChannelProtocol.h')
| -rw-r--r-- | netwerk/sctp/datachannel/DataChannelProtocol.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/netwerk/sctp/datachannel/DataChannelProtocol.h b/netwerk/sctp/datachannel/DataChannelProtocol.h new file mode 100644 index 0000000000..ca44e0961d --- /dev/null +++ b/netwerk/sctp/datachannel/DataChannelProtocol.h @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ +#define NETWERK_SCTP_DATACHANNEL_DATACHANNELPROTOCOL_H_ + +#if defined(__GNUC__) +# define SCTP_PACKED __attribute__((packed)) +#elif defined(_MSC_VER) +# pragma pack(push, 1) +# define SCTP_PACKED +#else +# error "Unsupported compiler" +#endif + +#define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256 +// Do not change this value! +#define WEBRTC_DATACHANNEL_PORT_DEFAULT 5000 +// TODO: Bug 1381146, change once we resolve the nsCString limitation +#define WEBRTC_DATACHANNEL_MAX_MESSAGE_SIZE_LOCAL 1073741823 +#define WEBRTC_DATACHANNEL_MAX_MESSAGE_SIZE_REMOTE_DEFAULT 65536 +// TODO: Bug 1382779, once resolved, can be increased to min(Uint8ArrayMaxSize, +// UINT32_MAX) +// TODO: Bug 1381146, once resolved, can be increased to whatever we support +// then (hopefully SIZE_MAX) or be removed +#define WEBRTC_DATACHANNEL_MAX_MESSAGE_SIZE_REMOTE 2147483637 + +#define DATA_CHANNEL_PPID_CONTROL 50 +#define DATA_CHANNEL_PPID_BINARY_PARTIAL 52 +#define DATA_CHANNEL_PPID_BINARY 53 +#define DATA_CHANNEL_PPID_DOMSTRING_PARTIAL 54 +#define DATA_CHANNEL_PPID_DOMSTRING 51 +#define DATA_CHANNEL_PPID_DOMSTRING_EMPTY 56 +#define DATA_CHANNEL_PPID_BINARY_EMPTY 57 + +#define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000 + +#define DATA_CHANNEL_FLAGS_FINISH_OPEN 0x00000004 +#define DATA_CHANNEL_FLAGS_WAITING_ACK 0x00000010 +#define DATA_CHANNEL_FLAGS_CLOSING_TOO_LARGE 0x00000020 + +#define DATA_CHANNEL_BUFFER_MESSAGE_FLAGS_TOO_LARGE 0x01 +#define DATA_CHANNEL_BUFFER_MESSAGE_FLAGS_BUFFERED 0x02 +#define DATA_CHANNEL_BUFFER_MESSAGE_FLAGS_COMPLETE 0x04 + +#define INVALID_STREAM (0xFFFF) +// max is 0xFFFF: Streams 0 to 0xFFFE = 0xFFFF streams +#define MAX_NUM_STREAMS (2048) + +struct rtcweb_datachannel_open_request { + uint8_t msg_type; // DATA_CHANNEL_OPEN + uint8_t channel_type; + int16_t priority; + uint32_t reliability_param; + uint16_t label_length; + uint16_t protocol_length; + char label[1]; // (and protocol) keep VC++ happy... +} SCTP_PACKED; + +struct rtcweb_datachannel_ack { + uint8_t msg_type; // DATA_CHANNEL_ACK +} SCTP_PACKED; + +/* msg_type values: */ +/* 0-1 were used in an early version of the protocol with 3-way handshakes */ +#define DATA_CHANNEL_ACK 2 +#define DATA_CHANNEL_OPEN_REQUEST 3 + +/* channel_type values: */ +#define DATA_CHANNEL_RELIABLE 0x00 +#define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT 0x01 +#define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED 0x02 + +#define DATA_CHANNEL_RELIABLE_UNORDERED 0x80 +#define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED 0x81 +#define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED 0x82 + +#define ERR_DATA_CHANNEL_ALREADY_OPEN 1 +#define ERR_DATA_CHANNEL_NONE_AVAILABLE 2 + +#if defined(_MSC_VER) +# pragma pack(pop) +# undef SCTP_PACKED +#endif + +#endif |