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net/ping: fix ICMP echo code field to 0

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The code was trying to pass the ICMP protocol number here (1), which is
not a valid code. Many servers will not respond to echo messages with
codes other than 0.

https://www.iana.org/assignments/icmp-parameters/icmp-parameters.xhtml#icmp-parameters-codes-8

Updates #9299
Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2023-09-09 11:39:44 -07:00 committed by James Tucker
parent f6845b10f6
commit 8ab46952d4
1 changed files with 1 additions and 1 deletions
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2
net/ping/ping.go
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@ -303,7 +303,7 @@ func (p *Pinger) Send(ctx context.Context, dest net.Addr, data []byte) (time.Dur
m := icmp.Message{ m := icmp.Message{
Type: icmpType, Type: icmpType,
Code: icmpType.Protocol(), Code: 0,
Body: &icmp.Echo{ Body: &icmp.Echo{
ID: int(p.id), ID: int(p.id),
Seq: int(seq), Seq: int(seq),