diff options
Diffstat (limited to 'wireguard-go-bridge/src/tun/tun_ios.go')
| -rw-r--r-- | wireguard-go-bridge/src/tun/tun_ios.go | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/wireguard-go-bridge/src/tun/tun_ios.go b/wireguard-go-bridge/src/tun/tun_ios.go index 93a0503..cafe33b 100644 --- a/wireguard-go-bridge/src/tun/tun_ios.go +++ b/wireguard-go-bridge/src/tun/tun_ios.go @@ -26,10 +26,17 @@ type nativeTun struct { ctx unsafe.Pointer } -func CreateTUN(mtu int, readFn unsafe.Pointer, writeFn unsafe.Pointer, ctx unsafe.Pointer) TUNDevice { +func CreateTUN(mtu uint16, readFn unsafe.Pointer, writeFn unsafe.Pointer, ctx unsafe.Pointer) TUNDevice { + if mtu == 0 { + /* 0 means automatic MTU, which iOS makes outerMTU-80-15. The 80 is for + * WireGuard and the 15 ensures our padding will work. Therefore, it's + * safe to have this code assume a massive MTU. + */ + mtu = ^mtu + } tun := &nativeTun{ events: make(chan TUNEvent, 10), - mtu: mtu, + mtu: int(mtu), readFn: readFn, writeFn: writeFn, ctx: ctx, |