yggdrasil-network/yggdrasil-go
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Per-platform TUN defaults

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This commit is contained in:
Neil Alexander 2018-03-03 12:30:54 +00:00
parent bec898a326
commit 4917ea3dd2
8 changed files with 56 additions and 26 deletions
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13
src/yggdrasil/tun.go
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@ -5,6 +5,8 @@ package yggdrasil
import "os"
import ethernet "github.com/songgao/packets/ethernet"
const DEFAULT_MTU = 65535
const IPv6_HEADER_LENGTH = 40
const ETHER_HEADER_LENGTH = 14
@ -28,12 +30,15 @@ type tunDevice struct {
}
type tunDefaultParameters struct {
maxMTU int
maximumIfMTU int
defaultIfMTU int
defaultIfName string
defaultIfTAPMode bool
}
func getMTUFromMax(mtu int) int {
if mtu > defaultTUNParameters().maxMTU {
return defaultTUNParameters().maxMTU
func getSupportedMTU(mtu int) int {
if mtu > getDefaults().maximumIfMTU {
return getDefaults().maximumIfMTU
}
return mtu
}