FRRouting Release 7.5.1

FRRouting Release 7.5.1

This is a maintenance release with the following fixes:
  BABEL
    Fix connected route leak on change
  BFD
    Session lookup was sometimes wrong
    Memory leak and handling cleanups
    In some situations handle vrf appropriately when receiving packets
  BGP
    Peer Group Inheritance Fixes
    Dissallow attempt to peer peers reachable via blackholes
    Send BMP down message when reachability fails
    Cleanup handling of aggregator data when the AGG AS is 0
    Handle `neighbor <peer-group allowas-in` config changes properly
    Properly parse community and lcommunity values in some circumstances
    Allow peer-groups to configure `ttl-security hops`
    Prevent v6 routes with v4 nexthops from being installed
    Allow `default-originate` to be cleared from a peer group
    Fix evpn route-map vni filter at origin
    local routes were using non-default distance
    Properly track if the nexthop was updated in some circumstances
    Cleanup `show running` when running bgp with `-e X` values
    Various Memory leaks in show commands
    Properly withdraw exported routes when deleting a VRF
    Avoid resetting ebgp-multihop if peer setting is the same as peer-group
    Properly encode flowspec rules to zebra in some rare circumstances
    Generate statistics for routes in bgp when we have exactly 1 route
    Properly apply route-map for the default-originate command
  EIGRP
    Properly set MTU for eigrp packets sent
    Various memory leaks and using uninited data fixes
  ISIS
    When last area address is removed, resign if we were the DR
    Various memory leaks and using uninited data fixes
  LDP
    Various memory leaks and using uninited data fixes
  NHRP
    Use onlink routes when prefix == nh
    Shortcut routes are installed with proper nexthop
  OSPF
    Prevent duplicate packet read in multiple vrf situation
    Fix area removal at interface level
    Restore Point to MultiPoint interface types
    Correctly handle MTU change on startup
    Multi Instance initialization sometimes was not successful
    NSSA translate-always was not working properly
  OSPFv3
    Don't send hellos on loopback interfaces
    Handle ECMP better when a sub-path is removed
    Memory leak and handling fixes
    Fix Link LSA not updating when router priority is modified
    Some output from show commands was wrong
    Intra area remote connected prefixes sometimes not installed
  PBR
    Various memory leaks and using uninited data fixes
  PIM
    SGRpt prune received during prune didn't override holdtime
    Various memory leaks and using uninited data fixes
  STATIC
    Fix VRF and usage on startup in some instances
    Tableid was being mishandled in some cases
  VTYSH
    Disable bracketed paste in readline.
  WATCHFRR
    Various memory leaks and using uninited data fixes
  ZEBRA
    Always install blackhole routes using kernel routes instead of nexthops
    Various memory leaks and using uninited data fixes
    Dissallow resolution to duplicate nexthops that created infinite nexthops
    Apply the route-map delay-timer globally
    Some routes were stuck in Queued state when using the FPM
    Better handle vrf creation when using namespaces
    Set NUD_NOARP on sticky mac entries in addtion to NTF_STICKY
    Allow `set src X` to work on startup
  FRR Library
    Fix a variety of memory leaks
    Fix VRF Creation in some instances
    RPKI context editing was not properly handled in reload situations
    routemap code was not properly handling modification of CLI in some instances
  SNAPCRAFT
    Update to using rtrlib 0.7.0
    Fix passthrough path for Libyang 1.x
  ALPINE
    Remove old docker deps

Signed-off-by: Martin Winter <mwinter@opensourcerouting.org>