Add process_name/package_name/user/user_id rule item

common/process/searcher.go

@@ -0,0 +1,21 @@
+package process
+
+import (
+	"context"
+	"net/netip"
+
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+type Searcher interface {
+	FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error)
+}
+
+var ErrNotFound = E.New("process not found")
+
+type Info struct {
+	ProcessPath string
+	PackageName string
+	User        string
+	UserId      int32
+}