yggdrasil-network/yggdrasil-go
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Add FreeBSD support in TAP mode

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This commit is contained in:
Neil Alexander 2018-03-04 16:24:50 +00:00
parent 57777b6152
commit c30792245a
9 changed files with 164 additions and 17 deletions
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27
src/yggdrasil/tun_openbsd.go
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@ -1,5 +1,3 @@
// +build openbsd
package yggdrasil
import "os/exec"
@ -7,7 +5,7 @@ import "unsafe"
import "syscall"
import "golang.org/x/sys/unix"
import water "github.com/neilalexander/water"
import water "github.com/yggdrasil-network/water"
// This is to catch OpenBSD
@ -28,11 +26,22 @@ func getDefaults() tunDefaultParameters {
// the fields in a different order, and the consts below might also have
// different values
/*
OpenBSD, net/if_tun.h:
struct tuninfo {
u_int mtu;
u_short type;
u_short flags;
u_int baudrate;
};
*/
type tuninfo struct {
tun_mtu uint16
tun_type uint32
tun_flags uint32
tun_dummy uint16
tun_mtu uint32
tun_type uint16
tun_flags uint16
tun_baudrate uint32
}
const TUNSIFINFO = (0x80000000) | ((12 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 91
@ -79,7 +88,7 @@ func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int)
config = water.Config{DeviceType: water.TAP}
case !iftapmode || ifname[:8] == "/dev/tun":
// config = water.Config{DeviceType: water.TUN}
panic("TUN mode is not currently supported on OpenBSD, please use TAP instead")
panic("TUN mode is not currently supported on this platform, please use TAP instead")
default:
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
}
@ -111,7 +120,7 @@ func (tun *tunDevice) setupAddress(addr string) error {
//tun.core.log.Printf("TUNGIFINFO: %+v", ti)
// Set the new MTU
ti.tun_mtu = uint16(tun.mtu)
ti.tun_mtu = uint32(tun.mtu)
// Set the new interface flags
ti.tun_flags |= syscall.IFF_UP