"strings"

	"istio.io/api/annotation"
	"istio.io/istio/pkg/log"
	"istio.io/istio/tools/istio-iptables/pkg/cmd"
)

const (
	redirectModeREDIRECT         = "REDIRECT"
	redirectModeTPROXY           = "TPROXY"
	defaultProxyStatusPort       = "15020"
	defaultRedirectToPort        = "15001"
	defaultNoRedirectUID         = "1337"
	defaultNoRedirectGID         = "1337"
	defaultRedirectMode          = redirectModeREDIRECT

		"-p", iptablesconstants.TCP,
		"-i", "lo",
		"-j", "ACCEPT")

	// CLI: -A ISTIO_PRERT -p tcp -m tcp --dport <INPORT> -m mark ! --mark 0x539/0xfff -j TPROXY --on-port <INPORT> --on-ip 127.0.0.1 --tproxy-mark 0x111/0xfff
	//
	// DESC: Anything heading to <INPORT> that does not have the mark, TPROXY to ztunnel inbound port <INPORT>
	iptablesBuilder.AppendRule(
		iptableslog.UndefinedCommand, ChainInpodPrerouting, iptablesconstants.MANGLE,

		},
		{
			name: "tproxy",
			annotations: map[string]string{
				annotation.SidecarStatus.Name:           "true",
				annotation.SidecarInterceptionMode.Name: redirectModeTPROXY,
			},
			proxyEnv: []corev1.EnvVar{},
			golden:   filepath.Join(env.IstioSrc, "cni/pkg/plugin/testdata/tproxy.txt.golden"),
		},
		{
			name:        "DNS",

		}
	}()
	cmd := `export TMPDIR="` + deviceGotmp + `"` +
		`; export GOROOT="` + deviceGoroot + `"` +
		`; export GOPATH="` + deviceGopath + `"` +
		`; export CGO_ENABLED=0` +
		`; export GOPROXY=` + os.Getenv("GOPROXY") +
		`; export GOCACHE="` + deviceRoot + `/gocache"` +
		`; export PATH="` + deviceGoroot + `/bin":$PATH` +
		`; export HOME="` + deviceRoot + `/home"` +
		`; cd "` + deviceCwd + `"` +

	}
	for _, family := range families {
		// Equiv:
		// ip rule add fwmark 0x111/0xfff pref 32764 lookup 100
		//
		// Adds in-pod rules for marking packets with the istio-specific TPROXY mark.
		// A very similar mechanism is used for sidecar TPROXY.
		//
		// TODO largely identical/copied from tools/istio-iptables/pkg/capture/run_linux.go
		inpodMarkRule := netlink.NewRule()
		inpodMarkRule.Family = family