• Nikola Forró's avatar
    net: Fix behaviour of unreachable, blackhole and prohibit routes · 0315e382
    Nikola Forró authored
    Man page of ip-route(8) says following about route types:
    
      unreachable - these destinations are unreachable.  Packets are dis‐
      carded and the ICMP message host unreachable is generated.  The local
      senders get an EHOSTUNREACH error.
    
      blackhole - these destinations are unreachable.  Packets are dis‐
      carded silently.  The local senders get an EINVAL error.
    
      prohibit - these destinations are unreachable.  Packets are discarded
      and the ICMP message communication administratively prohibited is
      generated.  The local senders get an EACCES error.
    
    In the inet6 address family, this was correct, except the local senders
    got ENETUNREACH error instead of EHOSTUNREACH in case of unreachable route.
    In the inet address family, all three route types generated ICMP message
    net unreachable, and the local senders got ENETUNREACH error.
    
    In both address families all three route types now behave consistently
    with documentation.
    Signed-off-by: default avatarNikola Forró <nforro@redhat.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    0315e382
route.c 90.2 KB