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Merge pull request #569 from Arceliar/bbr

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Enable bbr for tcp sockets on linux
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Arceliar 2019-10-05 12:20:00 -05:00 committed by GitHub
commit 56ac49861e
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4 changed files with 35 additions and 4 deletions
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2
go.mod
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@ -1,7 +1,7 @@
module github.com/yggdrasil-network/yggdrasil-go
require (
github.com/Arceliar/phony v0.0.0-20190907031509-af5bdbeecab6
github.com/Arceliar/phony v0.0.0-20191004004458-c7ba8368bafa
github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8
github.com/hashicorp/go-syslog v1.0.0
github.com/hjson/hjson-go v3.0.1-0.20190209023717-9147687966d9+incompatible

4
go.sum
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@ -1,5 +1,5 @@
github.com/Arceliar/phony v0.0.0-20190907031509-af5bdbeecab6 h1:zMj5Q1V0yF4WNfV/FpXG6iXfPJ965Xc5asR2vHXanXc=
github.com/Arceliar/phony v0.0.0-20190907031509-af5bdbeecab6/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
github.com/Arceliar/phony v0.0.0-20191004004458-c7ba8368bafa h1:bFoWgQ17NKP4FBB2Tnt1QZ8fZqrxLYORIlHUa5ioDjc=
github.com/Arceliar/phony v0.0.0-20191004004458-c7ba8368bafa/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8 h1:WD8iJ37bRNwvETMfVTusVSAi0WdXTpfNVGY2aHycNKY=
github.com/gologme/log v0.0.0-20181207131047-4e5d8ccb38e8/go.mod h1:gq31gQ8wEHkR+WekdWsqDuf8pXTUZA9BnnzTuPz1Y9U=
github.com/hashicorp/go-syslog v1.0.0 h1:KaodqZuhUoZereWVIYmpUgZysurB1kBLX2j0MwMrUAE=

31
src/yggdrasil/tcp_linux.go Normal file
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@ -0,0 +1,31 @@
// +build linux
package yggdrasil
import (
"syscall"
"golang.org/x/sys/unix"
)
// WARNING: This context is used both by net.Dialer and net.Listen in tcp.go
func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
var control error
var bbr error
control = c.Control(func(fd uintptr) {
bbr = unix.SetsockoptString(int(fd), unix.IPPROTO_TCP, unix.TCP_CONGESTION, "bbr")
})
// Log any errors
if bbr != nil {
t.link.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, SetsockoptString error:", bbr)
}
if control != nil {
t.link.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, Control error:", control)
}
// Return nil because errors here are not considered fatal for the connection, it just means congestion control is suboptimal
return nil
}

2
src/yggdrasil/tcp_other.go
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@ -1,4 +1,4 @@
// +build !darwin
// +build !darwin,!linux
package yggdrasil