mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-22 02:30:31 +00:00
deduplicate some bsd tuntap code, still untested
This commit is contained in:
Arceliar
parent
a5f053448b
commit
e7726cfb00
98
src/yggdrasil/tun_bsd.go
Normal file
98
src/yggdrasil/tun_bsd.go
Normal file
@ -0,0 +1,98 @@
|
||||
package yggdrasil
|
||||
|
||||
import "os/exec"
|
||||
import "unsafe"
|
||||
//import "syscall"
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
import water "github.com/yggdrasil-network/water"
|
||||
|
||||
type in6_addrlifetime struct {
|
||||
ia6t_expire float64
|
||||
ia6t_preferred float64
|
||||
ia6t_vltime uint32
|
||||
ia6t_pltime uint32
|
||||
}
|
||||
|
||||
type sockaddr_in6 struct {
|
||||
sin6_len uint8
|
||||
sin6_family uint8
|
||||
sin6_port uint8
|
||||
sin6_flowinfo uint32
|
||||
sin6_addr [8]uint16
|
||||
sin6_scope_id uint32
|
||||
}
|
||||
|
||||
type in6_aliasreq struct {
|
||||
ifra_name [16]byte
|
||||
ifra_addr sockaddr_in6
|
||||
ifra_dstaddr sockaddr_in6
|
||||
ifra_prefixmask sockaddr_in6
|
||||
ifra_flags uint32
|
||||
ifra_lifetime in6_addrlifetime
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if ifname[:4] == "auto" {
|
||||
ifname = "/dev/tap0"
|
||||
}
|
||||
if len(ifname) < 9 {
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
switch {
|
||||
case iftapmode || ifname[:8] == "/dev/tap":
|
||||
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 this platform, please use TAP instead")
|
||||
default:
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
config.Name = ifname
|
||||
iface, err := water.New(config)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
tun.iface = iface
|
||||
tun.mtu = getSupportedMTU(mtu)
|
||||
return tun.setupAddress(addr)
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setupAddress(addr string) error {
|
||||
fd := tun.iface.FD().Fd()
|
||||
var err error
|
||||
var ti tuninfo
|
||||
|
||||
tun.core.log.Printf("Interface name: %s", tun.iface.Name())
|
||||
tun.core.log.Printf("Interface IPv6: %s", addr)
|
||||
tun.core.log.Printf("Interface MTU: %d", tun.mtu)
|
||||
|
||||
// Get the existing interface flags
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNGIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNGIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
// Update with any OS-specific flags, MTU, etc.
|
||||
ti.setInfo(tun)
|
||||
|
||||
// Set the new interface flags
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNSIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNSIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
// Set address
|
||||
cmd := exec.Command("ifconfig", tun.iface.Name(), "inet6", addr)
|
||||
//tun.core.log.Printf("ifconfig command: %v", strings.Join(cmd.Args, " "))
|
||||
output, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
tun.core.log.Printf("ifconfig failed: %v.", err)
|
||||
tun.core.log.Println(string(output))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
@ -1,12 +1,5 @@
|
||||
package yggdrasil
|
||||
|
||||
import "os/exec"
|
||||
import "unsafe"
|
||||
//import "syscall"
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
import water "github.com/yggdrasil-network/water"
|
||||
|
||||
// This is to catch FreeBSD and NetBSD
|
||||
|
||||
func getDefaults() tunDefaultParameters {
|
||||
@ -40,99 +33,12 @@ type tuninfo struct {
|
||||
tun_dummy uint8
|
||||
}
|
||||
|
||||
func (ti *tuninfo) setInfo(tun *tunDevice) {
|
||||
ti.tun_mtu = int16(tun.mtu)
|
||||
}
|
||||
|
||||
const TUNSIFINFO = (0x80000000) | ((8 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 91
|
||||
const TUNGIFINFO = (0x40000000) | ((8 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 92
|
||||
const TUNSIFHEAD = (0x80000000) | ((4 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 96
|
||||
const SIOCAIFADDR_IN6 = (0x80000000) | ((4 & 0x1fff) << 16) | uint32(byte('i'))<<8 | 27
|
||||
|
||||
// Below this point seems to be fairly standard at least...
|
||||
|
||||
type in6_addrlifetime struct {
|
||||
ia6t_expire float64
|
||||
ia6t_preferred float64
|
||||
ia6t_vltime uint32
|
||||
ia6t_pltime uint32
|
||||
}
|
||||
|
||||
type sockaddr_in6 struct {
|
||||
sin6_len uint8
|
||||
sin6_family uint8
|
||||
sin6_port uint8
|
||||
sin6_flowinfo uint32
|
||||
sin6_addr [8]uint16
|
||||
sin6_scope_id uint32
|
||||
}
|
||||
|
||||
type in6_aliasreq struct {
|
||||
ifra_name [16]byte
|
||||
ifra_addr sockaddr_in6
|
||||
ifra_dstaddr sockaddr_in6
|
||||
ifra_prefixmask sockaddr_in6
|
||||
ifra_flags uint32
|
||||
ifra_lifetime in6_addrlifetime
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if ifname[:4] == "auto" {
|
||||
ifname = "/dev/tap0"
|
||||
}
|
||||
if len(ifname) < 9 {
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
switch {
|
||||
case iftapmode || ifname[:8] == "/dev/tap":
|
||||
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 this platform, please use TAP instead")
|
||||
default:
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
config.Name = ifname
|
||||
iface, err := water.New(config)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
tun.iface = iface
|
||||
tun.mtu = getSupportedMTU(mtu)
|
||||
return tun.setupAddress(addr)
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setupAddress(addr string) error {
|
||||
fd := tun.iface.FD().Fd()
|
||||
var err error
|
||||
var ti tuninfo
|
||||
|
||||
tun.core.log.Printf("Interface name: %s", tun.iface.Name())
|
||||
tun.core.log.Printf("Interface IPv6: %s", addr)
|
||||
tun.core.log.Printf("Interface MTU: %d", tun.mtu)
|
||||
|
||||
// Get the existing interface flags
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNGIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNGIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
// Set the new MTU
|
||||
ti.tun_mtu = int16(tun.mtu)
|
||||
|
||||
// Set the new interface flags
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNSIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNSIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
// Set address
|
||||
cmd := exec.Command("ifconfig", tun.iface.Name(), "inet6", addr)
|
||||
//tun.core.log.Printf("ifconfig command: %v", strings.Join(cmd.Args, " "))
|
||||
output, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
tun.core.log.Printf("ifconfig failed: %v.", err)
|
||||
tun.core.log.Println(string(output))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -1,11 +1,6 @@
|
||||
package yggdrasil
|
||||
|
||||
import "os/exec"
|
||||
import "unsafe"
|
||||
import "syscall"
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
import water "github.com/yggdrasil-network/water"
|
||||
|
||||
// This is to catch OpenBSD
|
||||
|
||||
@ -44,85 +39,7 @@ type tuninfo struct {
|
||||
tun_baudrate uint32
|
||||
}
|
||||
|
||||
const TUNSIFINFO = (0x80000000) | ((12 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 91
|
||||
const TUNGIFINFO = (0x40000000) | ((12 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 92
|
||||
const SIOCAIFADDR_IN6 = (0x80000000) | ((4 & 0x1fff) << 16) | uint32(byte('i'))<<8 | 27
|
||||
|
||||
// Below this point seems to be fairly standard at least...
|
||||
|
||||
type in6_addrlifetime struct {
|
||||
ia6t_expire float64
|
||||
ia6t_preferred float64
|
||||
ia6t_vltime uint32
|
||||
ia6t_pltime uint32
|
||||
}
|
||||
|
||||
type sockaddr_in6 struct {
|
||||
sin6_len uint8
|
||||
sin6_family uint8
|
||||
sin6_port uint8
|
||||
sin6_flowinfo uint32
|
||||
sin6_addr [8]uint16
|
||||
sin6_scope_id uint32
|
||||
}
|
||||
|
||||
type in6_aliasreq struct {
|
||||
ifra_name [16]byte
|
||||
ifra_addr sockaddr_in6
|
||||
ifra_dstaddr sockaddr_in6
|
||||
ifra_prefixmask sockaddr_in6
|
||||
ifra_flags uint32
|
||||
ifra_lifetime in6_addrlifetime
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if ifname[:4] == "auto" {
|
||||
ifname = "/dev/tap0"
|
||||
}
|
||||
if len(ifname) < 9 {
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
switch {
|
||||
case iftapmode || ifname[:8] == "/dev/tap":
|
||||
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 this platform, please use TAP instead")
|
||||
default:
|
||||
panic("TUN/TAP name must be in format /dev/tunX or /dev/tapX")
|
||||
}
|
||||
config.Name = ifname
|
||||
iface, err := water.New(config)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
tun.iface = iface
|
||||
tun.mtu = getSupportedMTU(mtu)
|
||||
return tun.setupAddress(addr)
|
||||
}
|
||||
|
||||
func (tun *tunDevice) setupAddress(addr string) error {
|
||||
fd := tun.iface.FD().Fd()
|
||||
var err error
|
||||
var ti tuninfo
|
||||
|
||||
tun.core.log.Printf("Interface name: %s", tun.iface.Name())
|
||||
tun.core.log.Printf("Interface IPv6: %s", addr)
|
||||
tun.core.log.Printf("Interface MTU: %d", tun.mtu)
|
||||
|
||||
// Get the existing interface flags
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNGIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNGIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
//tun.core.log.Printf("TUNGIFINFO: %+v", ti)
|
||||
|
||||
// Set the new MTU
|
||||
ti.tun_mtu = uint32(tun.mtu)
|
||||
|
||||
// Set the new interface flags
|
||||
func (ti *tuninfo) setInfo(tun *tunDevice) {
|
||||
ti.tun_flags |= syscall.IFF_UP
|
||||
switch {
|
||||
case tun.iface.IsTAP():
|
||||
@ -131,23 +48,10 @@ func (tun *tunDevice) setupAddress(addr string) error {
|
||||
case tun.iface.IsTUN():
|
||||
ti.tun_flags |= syscall.IFF_POINTOPOINT
|
||||
}
|
||||
|
||||
// Set the new interface flags
|
||||
//tun.core.log.Printf("TUNSIFINFO: %+v", ti)
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(TUNSIFINFO), uintptr(unsafe.Pointer(&ti))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Printf("Error in TUNSIFINFO: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
// Set address
|
||||
cmd := exec.Command("ifconfig", tun.iface.Name(), "inet6", addr)
|
||||
//tun.core.log.Printf("ifconfig command: %v", strings.Join(cmd.Args, " "))
|
||||
output, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
tun.core.log.Printf("ifconfig failed: %v.", err)
|
||||
tun.core.log.Println(string(output))
|
||||
}
|
||||
|
||||
return nil
|
||||
ti.tun_mtu = uint32(tun.mtu)
|
||||
}
|
||||
|
||||
const TUNSIFINFO = (0x80000000) | ((12 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 91
|
||||
const TUNGIFINFO = (0x40000000) | ((12 & 0x1fff) << 16) | uint32(byte('t'))<<8 | 92
|
||||
const SIOCAIFADDR_IN6 = (0x80000000) | ((4 & 0x1fff) << 16) | uint32(byte('i'))<<8 | 27
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user