[pbr] No way to configure policy for dual-stack (IPv4/IPv6) interface

[noonedeadpunk]

Description

At the moment it seems to be impossible to configure a PBR for the interface with both IPv4 and IPv6, as:

• Only single src-ip can be defined per policy
• Only single policy map can be defined per interface
• Same interface can be defined only once

Version

# show version
FRRouting 9.1 (os-net02) on Linux(5.15.0-89-generic).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
    '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-option-checking' '--disable-silent-rules' '--libdir=${prefix}/lib/x86_64-linux-gnu' '--libexecdir=${prefix}/lib/x86_64-linux-gnu' '--disable-maintainer-mode' '--localstatedir=/var/run/frr' '--sbindir=/usr/lib/frr' '--sysconfdir=/etc/frr' '--with-vtysh-pager=/usr/bin/pager' '--libdir=/usr/lib/x86_64-linux-gnu/frr' '--with-moduledir=/usr/lib/x86_64-linux-gnu/frr/modules' '--disable-dependency-tracking' '--enable-rpki' '--disable-scripting' '--enable-pim6d' '--with-libpam' '--enable-doc' '--enable-doc-html' '--enable-snmp' '--enable-fpm' '--disable-protobuf' '--disable-zeromq' '--enable-ospfapi' '--enable-bgp-vnc' '--enable-multipath=256' '--enable-user=frr' '--enable-group=frr' '--enable-vty-group=frrvty' '--enable-configfile-mask=0640' '--enable-logfile-mask=0640' 'build_alias=x86_64-linux-gnu' 'PYTHON=python3'

How to reproduce

It's assumed, that configuration like that should work:

pbr-map FLOATING-IPS seq 101
  match src-ip 192.168.0.0/24
  set nexthop 10.0.0.65 bond0.3114
pbr-map FLOATING-IPS-V6 seq 101
  match src-ip fd53:d91e:400::/40
  set nexthop fe80::2220:ff:fe00:aa bond0.3114
interface br-provide.3102
  pbr-policy FLOATING-IPS
  pbr-policy FLOATING-IPS-V6

Or, maybe, smth like this:

nexthop-group PROVIDER
  nexthop 10.0.0.65 bond0.3114
  nexthop fe80::2220:ff:fe00:aa bond0.3114
pbr-map FLOATING-IPS seq 101
  match src-ip 192.168.0.0/24
  match src-ip fd53:d91e:400::/40
  set nexthop-group PROVIDER
interface br-provide.3102
  pbr-policy FLOATING-IPS

Expected behavior

os-net02# show pbr map
  pbr-map FLOATING-IPS valid: yes
    Seq: 101 rule: 400
        Installed: yes Reason: Valid
        SRC IP Match: 192.168.0.0/24
        nexthop 10.0.0.65 bond0.3114
          Installed: yes Tableid: 10000
  pbr-map FLOATING-IPS-V6 valid: yes
    Seq: 101 rule: 400
        Installed: yes Reason: Valid
        SRC IP Match: fd53:d91e:400::/40
        nexthop fe80::2220:ff:fe00:aa bond0.3114
          Installed: yes Tableid: 10001
os-net02# show pbr int
  br-provide.3102(20) with pbr-policy FLOATING-IPS FLOATING-IPS-V6

Actual behavior

os-net02# show pbr map
  pbr-map FLOATING-IPS valid: yes
    Seq: 101 rule: 400
        Installed: no Reason: Valid
        SRC IP Match: 192.168.0.0/24
        nexthop 10.0.0.65 bond0.3114
          Installed: yes Tableid: 10000
  pbr-map FLOATING-IPS-V6 valid: yes
    Seq: 101 rule: 400
        Installed: yes Reason: Valid
        SRC IP Match: fd53:d91e:400::/40
        nexthop fe80::2220:ff:fe00:aa bond0.3114
          Installed: yes Tableid: 10001
os-net02# show pbr int
  br-provide.3102(20) with pbr-policy FLOATING-IPS-V6

Additional context

No response

Checklist

• I have searched the open issues for this bug.
• I have not included sensitive information in this report.