1 files changed, 52 insertions, 0 deletions
diff --git a/host/frontend/gcastv2/webrtc/include/webrtc/SCTPHandler.h b/host/frontend/gcastv2/webrtc/include/webrtc/SCTPHandler.h
new file mode 100644
index 000000000..af1b11c66
--- /dev/null
+++ b/host/frontend/gcastv2/webrtc/include/webrtc/SCTPHandler.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <webrtc/DTLS.h>
+
+#include <https/RunLoop.h>
+
+#include <memory>
+
+struct SCTPHandler : public std::enable_shared_from_this<SCTPHandler> {
+    explicit SCTPHandler(
+            std::shared_ptr<RunLoop> runLoop,
+            std::shared_ptr<DTLS> dtls);
+
+    void run();
+
+    int inject(uint8_t *data, size_t size);
+
+private:
+    std::shared_ptr<RunLoop> mRunLoop;
+    std::shared_ptr<DTLS> mDTLS;
+
+    uint32_t mInitiateTag;
+    uint32_t mSendingTSN;
+    bool mSentGreeting;
+
+    int processChunk(
+            uint16_t srcPort,
+            const uint8_t *data,
+            size_t size,
+            bool firstChunk,
+            bool lastChunk);
+
+    static uint32_t crc32c(const uint8_t *data, size_t size);
+
+    void onSendGreeting(uint16_t srcPort, size_t index);
+};