kernel/tools/testing/selftests/net/forwarding/lib.sh, branch linux-5.2.y

selftests: forwarding: Make ping timeout configurable

2019-02-01T23:26:36Z

The current timeout (2 seconds) proved to be too low for some (emulated) systems where we run the tests. Make the timeout configurable and default to 5 seconds. Signed-off-by: Ido Schimmel Signed-off-by: Petr Machata Signed-off-by: David S. Miller

selftests: forwarding: Use OK instead of PASS in test output

2019-01-28T18:43:15Z

It is easier to distinguish "[ OK ]" from "[FAIL]" than "[PASS]". Signed-off-by: Ido Schimmel Suggested-by: David Ahern Cc: David Ahern Signed-off-by: David S. Miller

selftests: forwarding: Add multicast routing test

2018-12-12T07:01:33Z

Introduce basic testing for both IPv4 and IPv6 multicast. The test creates an (S,G) type route, sends traffic and verifies traffic arrives when the route is present and then verifies traffic does not arrive after deleting the route. This test requires smcroute - https://github.com/troglobit/smcroute which is a tool that allows creation of static multicast routes. Signed-off-by: Nir Dotan Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: lib: Add link_stats_rx_errors_get()

2018-11-20T01:59:43Z

Such a function will be useful for counting malformed packets in the ECN decap test. To that end, introduce a common handler for handling stat-fetching, and reuse it in link_stats_tx_packets_get() and link_stats_rx_errors_get(). Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: ping{6, }_do(): Allow passing ping arguments

2018-11-20T01:59:43Z

Make the ping routine more generic by allowing passing arbitrary ping command-line arguments. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: ping{6, }_test(): Add description argument

2018-11-20T01:59:43Z

Have ping_test() recognize an optional argument with a description of the test. This is handy if there are several ping test, to make it clear which is which. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: lib: Add in_ns()

2018-11-20T01:59:43Z

In order to run a certain command inside another network namespace, it's possible to use "ip netns exec ns command". However then one can't use functions defined in lib.sh or a test suite. One option is to do "ip netns exec ns bash -c command", provided that all functions that one wishes to use (and their dependencies) are published using "export -f". That may not be practical. Therefore, introduce a helper in_ns(), which wraps a given command in a boilerplate of "ip netns exec" and "source lib.sh", thus making all library functions available. (Custom functions that a script wishes to run within a namespace still need to be exported.) Because quotes in "$@" aren't recognized in heredoc, hand-expand the array in an explicit for loop, leveraging printf %q to handle proper quoting. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: lib: Support NUM_NETIFS of 0

2018-11-20T01:59:43Z

So far the case of NUM_NETIFS of 0 has not been interesting. However if one wishes to reuse the lib.sh routines in a setup of a separate namespace, being able to import like this is handy. Therefore replace the {1..$NUM_NETIFS} references, which cause iteration over 1 and 0, with an explicit for loop like we do in setup_wait() and tc_offload_check(), so that for NUM_NETIFS of 0 no iteration is done. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: Have lldpad_app_wait_set() wait for unknown, too

2018-10-11T05:22:07Z

Immediately after mlxsw module is probed and lldpad started, added APP entries are briefly in "unknown" state before becoming "pending". That's the state that lldpad_app_wait_set() typically sees, and since there are no pending entries at that time, it bails out. However the entries have not been pushed to the kernel yet at that point, and thus the test case fails. Fix by waiting for both unknown and pending entries to disappear before proceeding. Fixes: d159261f3662 ("selftests: mlxsw: Add test for trust-DSCP") Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: forwarding: lib: Add mtu_set(), mtu_restore()

2018-09-20T14:46:02Z

Some selftests need to tweak MTU of an interface, and naturally should at teardown restore the MTU back to the original value. Add two functions to facilitate this MTU handling: mtu_set() to change MTU value, and mtu_reset() to change it back to what it was before. Signed-off-by: Petr Machata Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller