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23 lines
553 B
23 lines
553 B
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package icmp
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import (
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"net"
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"golang.org/x/net/internal/iana"
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)
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const ipv6PseudoHeaderLen = 2*net.IPv6len + 8
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// IPv6PseudoHeader returns an IPv6 pseudo header for checksum
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// calculation.
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func IPv6PseudoHeader(src, dst net.IP) []byte {
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b := make([]byte, ipv6PseudoHeaderLen)
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copy(b, src.To16())
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copy(b[net.IPv6len:], dst.To16())
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b[len(b)-1] = byte(iana.ProtocolIPv6ICMP)
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return b
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}
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