selftests: fib_tests: Add test cases for interaction with mangling
Test that packets are correctly routed when netfilter mangling rules are present. Without previous patch: # ./fib_tests.sh -t ipv4_mangle IPv4 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [FAIL] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [FAIL] Tests passed: 3 Tests failed: 2 # ./fib_tests.sh -t ipv6_mangle IPv6 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [FAIL] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [FAIL] Tests passed: 3 Tests failed: 2 With previous patch: # ./fib_tests.sh -t ipv4_mangle IPv4 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [ OK ] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [ OK ] Tests passed: 5 Tests failed: 0 # ./fib_tests.sh -t ipv6_mangle IPv6 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [ OK ] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [ OK ] Tests passed: 5 Tests failed: 0 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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