On 1/11/26 5:08 AM, Ido Schimmel wrote:

A multicast gateway address should be rejected when "onlink" is
specified, but it is only tested as part of the IPv6 tests. Add an
equivalent IPv4 test.

 # ./fib-onlink-tests.sh -v
 [...]
 COMMAND: ip ro add table 254 169.254.101.12/32 via 233.252.0.1 dev veth1 onlink
 Error: Nexthop has invalid gateway.

 TEST: Invalid gw - multicast address                      [ OK ]
 [...]
 COMMAND: ip ro add table 1101 169.254.102.12/32 via 233.252.0.1 dev veth5 onlink
 Error: Nexthop has invalid gateway.

 TEST: Invalid gw - multicast address, VRF                 [ OK ]
 [...]
 Tests passed:  37
 Tests failed:   0

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 tools/testing/selftests/net/fib-onlink-tests.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Reviewed-by: David Ahern <dsahern@kernel.org>