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Panu Matilainen
49dd18ba46
Trying to add an unreachable route incorrectly returns -ESRCH if if custom FIB rules are present: [root@localhost ~]# ip route add 74.125.31.199 dev eth0 via 1.2.3.4 RTNETLINK answers: Network is unreachable [root@localhost ~]# ip rule add to 55.66.77.88 table 200 [root@localhost ~]# ip route add 74.125.31.199 dev eth0 via 1.2.3.4 RTNETLINK answers: No such process [root@localhost ~]# Commit83886b6b63("[NET]: Change "not found" return value for rule lookup") changed fib_rules_lookup() to use -ESRCH as a "not found" code internally, but for user space it should be translated into -ENETUNREACH. Handle the translation centrally in ipv4-specific fib_lookup(), leaving the DECnet case alone. On a related note, commitb7a71b51ee("ipv4: removed redundant conditional") removed a similar translation from ip_route_input_slow() prematurely AIUI. Fixes:b7a71b51ee("ipv4: removed redundant conditional") Signed-off-by: Panu Matilainen <pmatilai@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>