1 files changed, 80 insertions, 0 deletions
diff --git a/netwerk/sctp/datachannel/DataChannelProtocol.h b/netwerk/sctp/datachannel/DataChannelProtocol.h
new file mode 100644
index 000000000..74fbe581c
--- /dev/null
+++ b/netwerk/sctp/datachannel/DataChannelProtocol.h
@@ -0,0 +1,80 @@
+/* -*- 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
+
+// Duplicated in fsm.def
+#define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 256
+
+#define DATA_CHANNEL_PPID_CONTROL        50
+#define DATA_CHANNEL_PPID_BINARY         52
+#define DATA_CHANNEL_PPID_BINARY_LAST    53
+#define DATA_CHANNEL_PPID_DOMSTRING      54
+#define DATA_CHANNEL_PPID_DOMSTRING_LAST 51
+
+#define DATA_CHANNEL_MAX_BINARY_FRAGMENT 0x4000
+
+#define DATA_CHANNEL_FLAGS_SEND_REQ             0x00000001
+#define DATA_CHANNEL_FLAGS_SEND_RSP             0x00000002
+#define DATA_CHANNEL_FLAGS_SEND_ACK             0x00000004
+#define DATA_CHANNEL_FLAGS_OUT_OF_ORDER_ALLOWED 0x00000008
+#define DATA_CHANNEL_FLAGS_SEND_DATA            0x00000010
+#define DATA_CHANNEL_FLAGS_FINISH_OPEN          0x00000020
+#define DATA_CHANNEL_FLAGS_FINISH_RSP           0x00000040
+#define DATA_CHANNEL_FLAGS_EXTERNAL_NEGOTIATED  0x00000080
+#define DATA_CHANNEL_FLAGS_WAITING_ACK          0x00000100
+
+#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