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server/vendor/github.com/pion/sctp/param.go

@@ -0,0 +1,46 @@
+// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package sctp
+
+import (
+	"errors"
+	"fmt"
+)
+
+type param interface {
+	marshal() ([]byte, error)
+	length() int
+}
+
+// ErrParamTypeUnhandled is returned if unknown parameter type is specified.
+var ErrParamTypeUnhandled = errors.New("unhandled ParamType")
+
+func buildParam(t paramType, rawParam []byte) (param, error) {
+	switch t {
+	case forwardTSNSupp:
+		return (&paramForwardTSNSupported{}).unmarshal(rawParam)
+	case supportedExt:
+		return (&paramSupportedExtensions{}).unmarshal(rawParam)
+	case ecnCapable:
+		return (&paramECNCapable{}).unmarshal(rawParam)
+	case random:
+		return (&paramRandom{}).unmarshal(rawParam)
+	case reqHMACAlgo:
+		return (&paramRequestedHMACAlgorithm{}).unmarshal(rawParam)
+	case chunkList:
+		return (&paramChunkList{}).unmarshal(rawParam)
+	case stateCookie:
+		return (&paramStateCookie{}).unmarshal(rawParam)
+	case heartbeatInfo:
+		return (&paramHeartbeatInfo{}).unmarshal(rawParam)
+	case outSSNResetReq:
+		return (&paramOutgoingResetRequest{}).unmarshal(rawParam)
+	case reconfigResp:
+		return (&paramReconfigResponse{}).unmarshal(rawParam)
+	case zeroChecksumAcceptable:
+		return (&paramZeroChecksumAcceptable{}).unmarshal(rawParam)
+	default:
+		return nil, fmt.Errorf("%w: %v", ErrParamTypeUnhandled, t)
+	}
+}