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[client] Add flag to configure MTU (#4213)

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This commit is contained in:
Viktor Liu
2025-08-26 16:00:14 +02:00
committed by GitHub
parent 9f84165763
commit f063866ce8
54 changed files with 710 additions and 434 deletions
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2
client/cmd/root.go
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@@ -39,6 +39,7 @@ const (
extraIFaceBlackListFlag = "extra-iface-blacklist"
dnsRouteIntervalFlag = "dns-router-interval"
enableLazyConnectionFlag = "enable-lazy-connection"
mtuFlag = "mtu"
)
var (
@@ -72,6 +73,7 @@ var (
anonymizeFlag bool
dnsRouteInterval time.Duration
lazyConnEnabled bool
mtu uint16
profilesDisabled bool
updateSettingsDisabled bool

1
client/cmd/root_test.go
View File

@@ -54,6 +54,7 @@ func TestSetFlagsFromEnvVars(t *testing.T) {
cmd.PersistentFlags().StringVar(&interfaceName, interfaceNameFlag, iface.WgInterfaceDefault, "WireGuard interface name")
cmd.PersistentFlags().BoolVar(&rosenpassEnabled, enableRosenpassFlag, false, "Enable Rosenpass feature Rosenpass.")
cmd.PersistentFlags().Uint16Var(&wireguardPort, wireguardPortFlag, iface.DefaultWgPort, "WireGuard interface listening port")
cmd.PersistentFlags().Uint16Var(&mtu, mtuFlag, iface.DefaultMTU, "Set MTU (Maximum Transmission Unit) for the WireGuard interface")
t.Setenv("NB_EXTERNAL_IP_MAP", "abc,dec")
t.Setenv("NB_INTERFACE_NAME", "test-name")

21
client/cmd/up.go
View File

@@ -63,6 +63,7 @@ func init() {
upCmd.PersistentFlags().BoolVarP(&foregroundMode, "foreground-mode", "F", false, "start service in foreground")
upCmd.PersistentFlags().StringVar(&interfaceName, interfaceNameFlag, iface.WgInterfaceDefault, "WireGuard interface name")
upCmd.PersistentFlags().Uint16Var(&wireguardPort, wireguardPortFlag, iface.DefaultWgPort, "WireGuard interface listening port")
upCmd.PersistentFlags().Uint16Var(&mtu, mtuFlag, iface.DefaultMTU, "Set MTU (Maximum Transmission Unit) for the WireGuard interface")
upCmd.PersistentFlags().BoolVarP(&networkMonitor, networkMonitorFlag, "N", networkMonitor,
`Manage network monitoring. Defaults to true on Windows and macOS, false on Linux and FreeBSD. `+
`E.g. --network-monitor=false to disable or --network-monitor=true to enable.`,
@@ -357,6 +358,11 @@ func setupSetConfigReq(customDNSAddressConverted []byte, cmd *cobra.Command, pro
req.WireguardPort = &p
}
if cmd.Flag(mtuFlag).Changed {
m := int64(mtu)
req.Mtu = &m
}
if cmd.Flag(networkMonitorFlag).Changed {
req.NetworkMonitor = &networkMonitor
}
@@ -436,6 +442,13 @@ func setupConfig(customDNSAddressConverted []byte, cmd *cobra.Command, configFil
ic.WireguardPort = &p
}
if cmd.Flag(mtuFlag).Changed {
if err := iface.ValidateMTU(mtu); err != nil {
return nil, err
}
ic.MTU = &mtu
}
if cmd.Flag(networkMonitorFlag).Changed {
ic.NetworkMonitor = &networkMonitor
}
@@ -533,6 +546,14 @@ func setupLoginRequest(providedSetupKey string, customDNSAddressConverted []byte
loginRequest.WireguardPort = &wp
}
if cmd.Flag(mtuFlag).Changed {
if err := iface.ValidateMTU(mtu); err != nil {
return nil, err
}
m := int64(mtu)
loginRequest.Mtu = &m
}
if cmd.Flag(networkMonitorFlag).Changed {
loginRequest.NetworkMonitor = &networkMonitor
}