-A ISTIO_OUTPUT -o lo -m owner ! --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -m owner --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -o lo ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m owner --gid-owner 1337 -j ISTIO_IN_REDIRECT
-A ISTIO_OUTPUT -o lo -m owner ! --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -m owner --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -d 127.0.0.1/32 -j RETURN

-A ISTIO_OUTPUT -o lo -p tcp ! --dport 53 -m owner ! --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -m owner --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -o lo ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m owner --gid-owner 1337 -j ISTIO_IN_REDIRECT
-A ISTIO_OUTPUT -o lo -p tcp ! --dport 53 -m owner ! --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -m owner --gid-owner 1337 -j RETURN

-A ISTIO_OUTPUT -o lo ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m owner --uid-owner 1337 -j ISTIO_IN_REDIRECT
-A ISTIO_OUTPUT -m owner --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -o lo ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m owner --gid-owner 1337 -j ISTIO_IN_REDIRECT
-A ISTIO_OUTPUT -m owner --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -d 127.0.0.1/32 -j RETURN
-A ISTIO_OUTPUT -d 10.0.0.0/8 -j RETURN

FROM ubuntu:noble AS ubuntu_source

# Modify contents of container
COPY --from=distroless_source /etc/ /home/etc
COPY --from=distroless_source /home/nonroot /home/nonroot
RUN echo istio-proxy:x:1337: >> /home/etc/group
RUN echo istio-proxy:x:1337:1337:istio-proxy:/nonexistent:/sbin/nologin >> /home/etc/passwd

# Customize distroless with the following:
# - password file
# - groups file
# - /home/nonroot directory

  && update-alternatives --set iptables /usr/sbin/iptables-legacy \
  && update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy

# Sudoers used to allow tcpdump and other debug utilities.
RUN useradd -m --uid 1337 istio-proxy && \

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

	}

	// TODO QueryParams, maybe Gateways
	return strings.TrimSpace(retval)
}

func printPod(writer io.Writer, pod *corev1.Pod, revision string) {
	ports := []string{}
	UserID := int64(1337)
	for _, container := range pod.Spec.Containers {
		for _, port := range container.Ports {
			var protocol string
			// Suppress /<protocol> for TCP, print it for everything else
			if port.Protocol != "TCP" {

- auto excluded inbound ports: 15020, 15021, 15090

The code automatically detects the proxyUID and proxyGID from RunAsUser/RunAsGroup and exclude them from interception, defaulting to 1337

### Overview

- [istio-cni Helm chart](../manifests/charts/istio-cni/templates)

	iptableslog "istio.io/istio/tools/istio-iptables/pkg/log"
)

var log = scopes.CNIAgent

const (
	// INPOD marks/masks
	InpodTProxyMark      = 0x111
	InpodTProxyMask      = 0xfff
	InpodMark            = 1337 // this needs to match the inpod config mark in ztunnel.
	InpodMask            = 0xfff
	InpodRestoreMask     = 0xffffffff
	ChainInpodOutput     = "ISTIO_OUTPUT"
	ChainInpodPrerouting = "ISTIO_PRERT"

    assertThat(newReader(byteStream()).readInt(0xe0 or 10, 31)).isEqualTo(10)
  }

  @Test
  fun readMultibyteInt() {
    assertThat(newReader(byteStream(154, 10)).readInt(31, 31)).isEqualTo(1337)
  }

  @Test
  fun writeSingleByteInt() {
    hpackWriter!!.writeInt(10, 31, 0)
    assertBytes(10)
    hpackWriter!!.writeInt(10, 31, 0xe0)
    assertBytes(0xe0 or 10)
  }

  @Test