osmium: show protocols all ospf_ipv4

ospf_ipv4 OSPF ospf4 up 2021-04-07 00:34:36 Running

Channel ipv4
    State:          UP
    Table:          ospf4
    Preference:     150
    Input filter:   ACCEPT
    Output filter:  ACCEPT
    Routes:         9 imported, 12 exported, 8 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             80          0          0          0         80
      Import withdraws:           29          0        ---          0         29
      Export updates:            100         76          0        ---         24
      Export withdraws:           33        ---        ---        ---          5