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[client] Use native windows sock opts to avoid routing loops (#4314)

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- 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
This commit is contained in:
Viktor Liu
2025-09-20 09:31:04 +02:00
committed by GitHub
parent 90577682e4
commit 55126f990c
77 changed files with 1180 additions and 606 deletions
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shared/signal/client/grpc.go
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@@ -16,10 +16,10 @@ import (
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
nbgrpc "github.com/netbirdio/netbird/client/grpc"
"github.com/netbirdio/netbird/encryption"
"github.com/netbirdio/netbird/shared/management/client"
"github.com/netbirdio/netbird/shared/signal/proto"
nbgrpc "github.com/netbirdio/netbird/util/grpc"
)
// ConnStateNotifier is a wrapper interface of the status recorder