publish to ipv6 - error from slirp4netns

[HidingCherry]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

publish cannot listen to IPv6 addresses

Steps to reproduce the issue:

podman run \
--net slirp4netns:port_handler=slirp4netns,enable_ipv6=true,outbound_addr6=2001:xxxx:xxxx:xxxx::1,allow_host_loopback=true \
-p 8080:80 \
-p 8443:443 \
-p [::]:8080:80 \
-p [::]:8443:443 \
docker.io/library/nginx:1-alpine

Describe the results you received:

Error: unable to start container "c718732c73b18023bad0eed815403dd0b088c98e142ea8a93b7f06fc62d55274": error from slirp4netns while setting up port redirection: map[desc:bad request: add_hostfwd: bad arguments.host_addr]

Describe the results you expected:
actually listen to all ipv6 addresses on ports 8080 and 8443 available on the system

Additional information you deem important (e.g. issue happens only occasionally):
It doesn't matter if I put a IPv6 in there (e.g. [2001:xxxx:xxxx:xxxx::1]) - the error stays the same.
Maybe IPv6 in the publish parameter is not parsed/passed through correctly?

Output of podman version:

$ podman version
Client:       Podman Engine
Version:      4.0.0-dev
API Version:  4.0.0-dev
Go Version:   go1.17.7
Git Commit:   eb19a7582e445d120ea2c4fd166313179d8c10a8
Built:        Sun Feb 13 22:11:21 2022
OS/Arch:      linux/amd64

Output of podman info --debug:

$ podman info --debug
host:
  arch: amd64
  buildahVersion: 1.24.1
  cgroupControllers:
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: /usr/bin/conmon is owned by conmon 1:2.1.0-1
    path: /usr/bin/conmon
    version: 'conmon version 2.1.0, commit: bdb4f6e56cd193d40b75ffc9725d4b74a18cb33c'
  cpus: 4
  distribution:
    distribution: arch
    version: unknown
  eventLogger: journald
  hostname: xxx
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1002
      size: 1
    - container_id: 1
      host_id: 165536
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1002
      size: 1
    - container_id: 1
      host_id: 165536
      size: 65536
  kernel: 5.15.21-hardened1-1-hardened
  linkmode: dynamic
  logDriver: journald
  memFree: 146345984
  memTotal: 4035608576
  networkBackend: cni
  ociRuntime:
    name: crun
    package: /usr/bin/crun is owned by crun 1.4.2-1
    path: /usr/bin/crun
    version: |-
      crun version 1.4.2
      commit: f6fbc8f840df1a414f31a60953ae514fa497c748
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    exists: true
    path: /run/user/1002/podman/podman.sock
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /etc/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /sbin/slirp4netns
    package: /usr/bin/slirp4netns is owned by slirp4netns 1.1.12-1
    version: |-
      slirp4netns version 1.1.12
      commit: 7a104a101aa3278a2152351a082a6df71f57c9a3
      libslirp: 4.6.1
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.3
  swapFree: 0
  swapTotal: 0
  uptime: 20h 45m 20.9s (Approximately 0.83 days)
plugins:
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - ghcr.io
  - quay.io
  - docker.io
store:
  configFile: /home/pods/.config/containers/storage.conf
  containerStore:
    number: 6
    paused: 0
    running: 6
    stopped: 0
  graphDriverName: btrfs
  graphOptions: {}
  graphRoot: /home/pods/.local/share/containers/storage
  graphStatus:
    Build Version: 'Btrfs v5.16.1 '
    Library Version: "102"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 5
  runRoot: /run/user/1002/containers
  volumePath: /home/pods/.local/share/containers/storage/volumes
version:
  APIVersion: 4.0.0-dev
  Built: 1644786681
  BuiltTime: Sun Feb 13 22:11:21 2022
  GitCommit: eb19a7582e445d120ea2c4fd166313179d8c10a8
  GoVersion: go1.17.7
  OsArch: linux/amd64
  Version: 4.0.0-dev

Package info (e.g. output of rpm -q podman or apt list podman):

$ pacman -Qs podman-git
local/podman-git 4.0.0_dev.r14270.geb19a7582-1
    Tool and library for running OCI-based containers in pods (git)

Have you tested with the latest version of Podman and have you checked the Podman Troubleshooting Guide? (https://github.com/containers/podman/blob/main/troubleshooting.md)

Yes (ipv6 is not mentioned there)

Additional environment details (AWS, VirtualBox, physical, etc.):
physical

[Luap99]

This is a slirp4netns issue, you cannot use the slirp4netns port forwarder with ipv6 (rootless-containers/slirp4netns#253)

You have to use rotlesskit for ipv6 forwarding