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55b1221db2
The packet filter still rejects all IPv6, but decodes enough from v6 packets to do something smarter in a followup. name time/op Decode/tcp4-8 28.8ns ± 2% Decode/tcp6-8 20.6ns ± 1% Decode/udp4-8 28.2ns ± 1% Decode/udp6-8 20.0ns ± 6% Decode/icmp4-8 21.7ns ± 2% Decode/icmp6-8 14.1ns ± 2% Decode/unknown-8 9.43ns ± 2% Signed-off-by: David Anderson <danderson@tailscale.com>
38 lines
715 B
Go
38 lines
715 B
Go
// Copyright (c) 2020 Tailscale Inc & 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 packet
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type ICMP6Type uint8
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const (
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ICMP6Unreachable ICMP6Type = 1
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ICMP6TimeExceeded ICMP6Type = 3
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ICMP6EchoRequest ICMP6Type = 128
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ICMP6EchoReply ICMP6Type = 129
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)
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func (t ICMP6Type) String() string {
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switch t {
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case ICMP6Unreachable:
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return "Unreachable"
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case ICMP6TimeExceeded:
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return "TimeExceeded"
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case ICMP6EchoRequest:
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return "EchoRequest"
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case ICMP6EchoReply:
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return "EchoReply"
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default:
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return "Unknown"
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}
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}
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type ICMP6Code uint8
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const (
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ICMP6NoCode ICMP6Code = 0
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)
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const icmp6HeaderLength = 4
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