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core/link_tcp_linux: drop trying to set BBR

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Instead of implementing an ability to select arbitrary TCP congestion
control algorithm (#776), drop setting it altogether as suggested by
@link2xt in #754.

Link: https://github.com/yggdrasil-network/yggdrasil-go/pull/776
Fixes: https://github.com/yggdrasil-network/yggdrasil-go/issues/754
Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
This commit is contained in:
Oleksandr Natalenko 2023-06-08 23:01:26 +02:00
parent 2eda59d9e4
commit 0f340f1ec5
1 changed files with 0 additions and 16 deletions
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16
src/core/link_tcp_linux.go
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@ -12,22 +12,6 @@ import (
// WARNING: This context is used both by net.Dialer and net.Listen in tcp.go // WARNING: This context is used both by net.Dialer and net.Listen in tcp.go
func (t *linkTCP) tcpContext(network, address string, c syscall.RawConn) error { func (t *linkTCP) 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.links.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, SetsockoptString error:", bbr)
}
if control != nil {
t.links.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 return nil
} }