Imports github.com/xtaci/tcpraw github.com/xtaci/kcp-go/v5 github.com/urfave/cli golang.org/x/crypto/pbkdf2 github.com/xtaci/kcptun/generic github.com/xtaci/smux Standard library imports net/http/pprof crypto/sha1 bytes os/signal encoding/json fmt io log math/rand net net/http os sort strconv strings sync syscall time