| James Kuszmaul | 4cb043c | 2021-01-17 11:25:51 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012-2015 Michael Tuexen |
| 3 | * |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. Neither the name of the project nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this software |
| 16 | * without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 28 | * SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #ifndef DATACHAN_H |
| 32 | |
| 33 | #define DATA_CHANNEL_PPID_CONTROL 1 |
| 34 | #define DATA_CHANNEL_PPID_DOMSTRING 2 |
| 35 | #define DATA_CHANNEL_PPID_BINARY 3 |
| 36 | |
| 37 | struct rtcweb_datachannel_msg { |
| 38 | uint8_t msg_type; |
| 39 | uint8_t channel_type; |
| 40 | uint16_t flags; |
| 41 | uint16_t reverse_stream; |
| 42 | uint16_t reliability_params; |
| 43 | /* msg_type_data follows */ |
| 44 | } SCTP_PACKED; |
| 45 | |
| 46 | /* msg_type values: */ |
| 47 | #define DATA_CHANNEL_OPEN 0 |
| 48 | #define DATA_CHANNEL_OPEN_RESPONSE 1 |
| 49 | |
| 50 | /* channel_type values: */ |
| 51 | #define DATA_CHANNEL_RELIABLE 0 |
| 52 | #define DATA_CHANNEL_RELIABLE_STREAM 1 |
| 53 | #define DATA_CHANNEL_UNRELIABLE 2 |
| 54 | #define DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT 3 |
| 55 | #define DATA_CHANNEL_PARTIAL_RELIABLE_TIMED 4 |
| 56 | |
| 57 | /* flags values: */ |
| 58 | #define DATA_CHANNEL_FLAG_OUT_OF_ORDER_ALLOWED 0x0001 |
| 59 | /* all other bits reserved and should be set to 0 */ |
| 60 | |
| 61 | /* msg_type_data contains: */ |
| 62 | /* |
| 63 | for DATA_CHANNEL_OPEN: |
| 64 | a DOMString label for the data channel |
| 65 | for DATA_CHANNEL_OPEN_RESPONSE: |
| 66 | a 16-bit value for errors or 0 for no error |
| 67 | */ |
| 68 | |
| 69 | #define ERR_DATA_CHANNEL_ALREADY_OPEN 0 |
| 70 | #define ERR_DATA_CHANNEL_NONE_AVAILABLE 1 |
| 71 | |
| 72 | #endif |