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Rename tuntap package to tun

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We haven't had TAP support in ages.
This commit is contained in:
Neil Alexander 2022-09-24 14:41:47 +01:00
parent 217ac39e77
commit 01c44a087b
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GPG key ID: A02A2019A2BB0944
18 changed files with 31 additions and 36 deletions
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47
src/tuntap/iface.go
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@ -1,47 +0,0 @@
package tuntap
const TUN_OFFSET_BYTES = 4
func (tun *TunAdapter) read() {
var buf [TUN_OFFSET_BYTES + 65535]byte
for {
n, err := tun.iface.Read(buf[:], TUN_OFFSET_BYTES)
if n <= TUN_OFFSET_BYTES || err != nil {
tun.log.Errorln("Error reading TUN:", err)
ferr := tun.iface.Flush()
if ferr != nil {
tun.log.Errorln("Unable to flush packets:", ferr)
}
return
}
begin := TUN_OFFSET_BYTES
end := begin + n
bs := buf[begin:end]
if _, err := tun.rwc.Write(bs); err != nil {
tun.log.Debugln("Unable to send packet:", err)
}
}
}
func (tun *TunAdapter) write() {
var buf [TUN_OFFSET_BYTES + 65535]byte
for {
bs := buf[TUN_OFFSET_BYTES:]
n, err := tun.rwc.Read(bs)
if err != nil {
tun.log.Errorln("Exiting tun writer due to core read error:", err)
return
}
if !tun.isEnabled {
continue // Nothing to do, the tun isn't enabled
}
bs = buf[:TUN_OFFSET_BYTES+n]
if _, err = tun.iface.Write(bs, TUN_OFFSET_BYTES); err != nil {
tun.Act(nil, func() {
if !tun.isOpen {
tun.log.Errorln("TUN iface write error:", err)
}
})
}
}
}