ipv4: Set offload_failed flag in fibmatch results
authorBenjamin Poirier <bpoirier@nvidia.com>
Tue, 26 Sep 2023 18:27:30 +0000 (14:27 -0400)
committerJakub Kicinski <kuba@kernel.org>
Wed, 4 Oct 2023 18:39:36 +0000 (11:39 -0700)
commit0add5c597f3253a9c6108a0a81d57f44ab0d9d30
tree1c5402f97564c10ad8aa05d0c547446b45358141
parent72897b29599934753d67932fccdde4c61d03b6db
ipv4: Set offload_failed flag in fibmatch results

Due to a small omission, the offload_failed flag is missing from ipv4
fibmatch results. Make sure it is set correctly.

The issue can be witnessed using the following commands:
echo "1 1" > /sys/bus/netdevsim/new_device
ip link add dummy1 up type dummy
ip route add 192.0.2.0/24 dev dummy1
echo 1 > /sys/kernel/debug/netdevsim/netdevsim1/fib/fail_route_offload
ip route add 198.51.100.0/24 dev dummy1
ip route
# 192.168.15.0/24 has rt_trap
# 198.51.100.0/24 has rt_offload_failed
ip route get 192.168.15.1 fibmatch
# Result has rt_trap
ip route get 198.51.100.1 fibmatch
# Result differs from the route shown by `ip route`, it is missing
# rt_offload_failed
ip link del dev dummy1
echo 1 > /sys/bus/netdevsim/del_device

Fixes: 36c5100e859d ("IPv4: Add "offload failed" indication to routes")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230926182730.231208-1-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/ipv4/route.c