yggdrasil-network/yggdrasil-go
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Clean up some exported constants

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This commit is contained in:
Neil Alexander 2018-05-27 23:31:34 +01:00
parent a9e61d0d37
commit 460a22c063
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GPG key ID: A02A2019A2BB0944
5 changed files with 40 additions and 39 deletions
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12
src/yggdrasil/tun.go
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@ -5,8 +5,8 @@ package yggdrasil
import "github.com/songgao/packets/ethernet"
import "github.com/yggdrasil-network/water"
const IPv6_HEADER_LENGTH = 40
const ETHER_HEADER_LENGTH = 14
const tun_IPv6_HEADER_LENGTH = 40
const tun_ETHER_HEADER_LENGTH = 14
type tunDevice struct {
core *Core
@ -59,7 +59,7 @@ func (tun *tunDevice) write() error {
ethernet.NotTagged, // VLAN tagging
ethernet.IPv6, // Ethertype
len(data)) // Payload length
copy(frame[ETHER_HEADER_LENGTH:], data[:])
copy(frame[tun_ETHER_HEADER_LENGTH:], data[:])
if _, err := tun.iface.Write(frame); err != nil {
panic(err)
}
@ -75,7 +75,7 @@ func (tun *tunDevice) write() error {
func (tun *tunDevice) read() error {
mtu := tun.mtu
if tun.iface.IsTAP() {
mtu += ETHER_HEADER_LENGTH
mtu += tun_ETHER_HEADER_LENGTH
}
buf := make([]byte, mtu)
for {
@ -86,10 +86,10 @@ func (tun *tunDevice) read() error {
}
o := 0
if tun.iface.IsTAP() {
o = ETHER_HEADER_LENGTH
o = tun_ETHER_HEADER_LENGTH
}
if buf[o]&0xf0 != 0x60 ||
n != 256*int(buf[o+4])+int(buf[o+5])+IPv6_HEADER_LENGTH+o {
n != 256*int(buf[o+4])+int(buf[o+5])+tun_IPv6_HEADER_LENGTH+o {
// Either not an IPv6 packet or not the complete packet for some reason
//panic("Should not happen in testing")
continue