Check that specified MTUs are not greater than MTUMax

[govpn.git] / src / govpn / cmd / govpn-client / main.go

diff --git a/src/govpn/cmd/govpn-client/main.go b/src/govpn/cmd/govpn-client/main.go
index 7c4514ef9a92ce163347f646b3085136fed7b45f..c4414050937f20e9740a3233d6e2d0c1fcac193e 100644 (file)
--- a/src/govpn/cmd/govpn-client/main.go
+++ b/src/govpn/cmd/govpn-client/main.go
@@ -53,7 +53,7 @@ var (
        timeout     int
        firstUpCall bool = true
        knownPeers  govpn.KnownPeers
-       idsCache    govpn.CipherCache
+       idsCache    *govpn.CipherCache
 )
 
 func main() {
@@ -62,6 +62,9 @@ func main() {
        var err error
        log.SetFlags(log.Ldate | log.Lmicroseconds | log.Lshortfile)
 
+       if *mtu > govpn.MTUMax {
+               log.Fatalln("Maximum allowable MTU is", govpn.MTUMax)
+       }
        if *egdPath != "" {
                log.Println("Using", *egdPath, "EGD")
                govpn.EGDInit(*egdPath)