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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
22 lines
409 B
Go
22 lines
409 B
Go
//go:build darwin
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// +build darwin
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package quic
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import "golang.org/x/sys/unix"
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const msgTypeIPTOS = unix.IP_RECVTOS
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const (
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ipv4RECVPKTINFO = unix.IP_RECVPKTINFO
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ipv6RECVPKTINFO = 0x3d
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)
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const (
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msgTypeIPv4PKTINFO = unix.IP_PKTINFO
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msgTypeIPv6PKTINFO = 0x2e
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)
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// ReadBatch only returns a single packet on OSX,
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// see https://godoc.org/golang.org/x/net/ipv4#PacketConn.ReadBatch.
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const batchSize = 1
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