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Merge pull request #593 from Arceliar/bindtodevice

BindToDevice
This commit is contained in:
Neil Alexander 2019-10-26 11:36:24 +01:00 committed by GitHub
commit cee28d11f8
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 23 additions and 0 deletions

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@ -299,6 +299,7 @@ func (t *tcp) call(saddr string, options interface{}, sintf string, upgrade *Tcp
Timeout: time.Second * 5,
}
if sintf != "" {
dialer.Control = t.getControl(sintf)
ief, err := net.InterfaceByName(sintf)
if err != nil {
return

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@ -26,3 +26,7 @@ func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
return control
}
}
func (t *tcp) getControl(sintf string) func(string, string, syscall.RawConn) error {
return t.tcpContext
}

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@ -29,3 +29,17 @@ func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
// Return nil because errors here are not considered fatal for the connection, it just means congestion control is suboptimal
return nil
}
func (t *tcp) getControl(sintf string) func(string, string, syscall.RawConn) error {
return func(network, address string, c syscall.RawConn) error {
var err error
btd := func(fd uintptr) {
err = unix.BindToDevice(int(fd), sintf)
}
c.Control(btd)
if err != nil {
t.link.core.log.Debugln("Failed to set SO_BINDTODEVICE:", sintf)
}
return t.tcpContext(network, address, c)
}
}

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@ -11,3 +11,7 @@ import (
func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
return nil
}
func (t *tcp) getControl(sintf string) func(string, string, syscall.RawConn) error {
return t.tcpContext
}