mirror of
https://github.com/netbirdio/netbird.git
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55126f990c
- Move `util/grpc` and `util/net` to `client` so `internal` packages can be accessed - Add methods to return the next best interface after the NetBird interface. - Use `IP_UNICAST_IF` sock opt to force the outgoing interface for the NetBird `net.Dialer` and `net.ListenerConfig` to avoid routing loops. The interface is picked by the new route lookup method. - Some refactoring to avoid import cycles - Old behavior is available through `NB_USE_LEGACY_ROUTING=true` env var
68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
//go:build windows
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package net
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import (
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"os"
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"strconv"
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"sync"
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log "github.com/sirupsen/logrus"
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"github.com/netbirdio/netbird/client/iface/netstack"
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)
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var (
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vpnInterfaceName string
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vpnInitMutex sync.RWMutex
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advancedRoutingSupported bool
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)
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func Init() {
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advancedRoutingSupported = checkAdvancedRoutingSupport()
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}
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func checkAdvancedRoutingSupport() bool {
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var err error
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var legacyRouting bool
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if val := os.Getenv(envUseLegacyRouting); val != "" {
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legacyRouting, err = strconv.ParseBool(val)
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if err != nil {
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log.Warnf("failed to parse %s: %v", envUseLegacyRouting, err)
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}
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}
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if legacyRouting || netstack.IsEnabled() {
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log.Info("advanced routing has been requested to be disabled")
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return false
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}
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log.Info("system supports advanced routing")
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return true
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}
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// AdvancedRouting reports whether routing loops can be avoided without using exclusion routes
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func AdvancedRouting() bool {
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return advancedRoutingSupported
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}
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// GetVPNInterfaceName returns the stored VPN interface name
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func GetVPNInterfaceName() string {
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vpnInitMutex.RLock()
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defer vpnInitMutex.RUnlock()
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return vpnInterfaceName
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}
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// SetVPNInterfaceName sets the VPN interface name for lazy initialization
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func SetVPNInterfaceName(name string) {
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vpnInitMutex.Lock()
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defer vpnInitMutex.Unlock()
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vpnInterfaceName = name
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if name != "" {
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log.Infof("VPN interface name set to %s for route exclusion", name)
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}
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}
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