cwinfo/yggdrasil-go
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Move to unix.Syscall etc and tidy up

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This commit is contained in:
Neil Alexander 2018-01-15 14:35:37 +00:00
parent 5d2dd061f0
commit d7be706413
1 changed files with 20 additions and 21 deletions
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41
src/yggdrasil/tun_darwin.go
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@ -2,12 +2,11 @@ package yggdrasil
// The darwin platform specific tun parts
import "syscall"
import "unsafe"
import "strings"
import "strconv"
import "encoding/binary"
// import "fmt"
import "golang.org/x/sys/unix"
import water "github.com/songgao/water"
@ -22,8 +21,6 @@ func (tun *tunDevice) setup(ifname string, addr string, mtu int) error {
return tun.setupAddress(addr)
}
const AF_INET6 = 30
const IN6_IFF_NODAD = 0x0020
const SIOCAIFADDR_IN6 = 2155899162
type in6_addrlifetime struct {
@ -51,11 +48,16 @@ type in6_aliasreq struct {
ifra_lifetime in6_addrlifetime
}
type ifreq struct {
ifr_name [16]byte
ifru_mtu uint32
}
func (tun *tunDevice) setupAddress(addr string) error {
var fd int
var err error
if fd, err = syscall.Socket(syscall.AF_INET6, syscall.SOCK_DGRAM, 0); err != nil {
if fd, err = unix.Socket(unix.AF_INET6, unix.SOCK_DGRAM, 0); err != nil {
tun.core.log.Printf("Create AF_SYSTEM socket failed: %v.", err)
return err
}
@ -68,7 +70,7 @@ func (tun *tunDevice) setupAddress(addr string) error {
ar.ifra_prefixmask.sin6_addr[0] = uint16(binary.BigEndian.Uint16(b))
ar.ifra_addr.sin6_len = uint8(unsafe.Sizeof(ar.ifra_addr))
ar.ifra_addr.sin6_family = AF_INET6
ar.ifra_addr.sin6_family = unix.AF_INET6
parts := strings.Split(strings.TrimRight(addr, "/8"), ":")
for i := 0; i < 8; i++ {
addr, _ := strconv.ParseUint(parts[i], 16, 16)
@ -79,28 +81,25 @@ func (tun *tunDevice) setupAddress(addr string) error {
ar.ifra_lifetime.ia6t_vltime = 0xFFFFFFFF
ar.ifra_lifetime.ia6t_pltime = 0xFFFFFFFF
var ir ifreq
copy(ir.ifr_name[:], tun.iface.Name())
ir.ifru_mtu = 1280
tun.core.log.Printf("Interface name: %s", ar.ifra_name)
tun.core.log.Printf("Interface IPv6: %s", addr)
tun.core.log.Printf("Interface MTU: %d", ir.ifru_mtu)
/*
var bytes *[unsafe.Sizeof(ar)]byte = (*[unsafe.Sizeof(ar)]byte)(unsafe.Pointer(&ar));
var out string;
for i := 0; i < int(unsafe.Sizeof(ar)); i ++ {
out += fmt.Sprintf("0x%02x", (*bytes)[i]);
if i % 8 == 7 {
out += "\n"
} else {
out += " "
}
}
tun.core.log.Printf("in6_aliasreq:\n%s", out);
*/
if _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(SIOCAIFADDR_IN6), uintptr(unsafe.Pointer(&ar))); errno != 0 {
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(SIOCAIFADDR_IN6), uintptr(unsafe.Pointer(&ar))); errno != 0 {
err = errno
tun.core.log.Printf("Error in SIOCAIFADDR_IN6: %v", errno)
return err
}
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(unix.SIOCSIFMTU), uintptr(unsafe.Pointer(&ir))); errno != 0 {
err = errno
tun.core.log.Printf("Error in SIOCSIFMTU: %v", errno)
return err
}
return err
}