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https://github.com/refraction-networking/uquic.git
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fd2c345152
This commit introduces additional platform-dependent checking when the kernel returns an error. Previously, the session is terminated when PingFrame sends a discovery packet larger than the limit. With this commit, the error is checked, and if it is "datagram too large", the error is ignored. Additionally, 1. This commit re-enables MTU discovery on Windows unless it is disabled explicitly by user (Undo #3276), 2. Set IP_DONTFRAGMENT and IPV6_DONTFRAG with error checking on Windows, and 3. Set IP_MTU_DISCOVERY to PMTUDISC_DO for both IPv4 and IPv6 on Linux so that the kernel will return "message too long". Fixes #3273 #3327
15 lines
225 B
Go
15 lines
225 B
Go
//go:build linux
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// +build linux
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package quic
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import (
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"errors"
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"golang.org/x/sys/unix"
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)
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func isMsgSizeErr(err error) bool {
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// https://man7.org/linux/man-pages/man7/udp.7.html
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return errors.Is(err, unix.EMSGSIZE)
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}
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