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Description of problem: The "show ip ospf interface" command does not show designated router info. It shows BDR info, but not DR.


Version-Release number of selected component (if applicable):
frr-7.5-4.el8.x86_64


How reproducible:
always

Steps to Reproduce:
1. start frr with ospfd running
2. view vtysh results from "show ip ospf interface"
3.

Actual results:
no DR info is shown, only BDR

Expected results:
Info about the DR & BRD should both be shown

Additional info:
This upstream patch should fix the problem: https://github.com/FRRouting/frr/commit/2fbb8f4543712088f01432172bd23b274c4db7f0

This bug is also present in Fedora 34. On my laptop, I configured a very simple OSPF configuration:

router ospf
 passive-interface default
 network 192.168.1.0/24 area 0

Then vtysh -c "show ip ospf interface" shows:

wlp0s20u2 is up
  ifindex 5, MTU 2312 bytes, BW 0 Mbit <UP,BROADCAST,RUNNING,MULTICAST>
  Internet Address 192.168.1.157/24, Broadcast 192.168.1.255, Area 0.0.0.0
  MTU mismatch detection: enabled
  Router ID 192.168.124.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  No backup designated router on this network
  Multicast group memberships: <None>
  Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5
    No Hellos (Passive interface)
  Neighbor Count is 0, Adjacent neighbor count is 0

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (frr bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:1778