linux.git/tools/testing/selftests/net, branch v5.8-rc2

selftests/net: in rxtimestamp getopt_long needs terminating null entry

2020-06-09T21:31:33+00:00

getopt_long requires the last element to be filled with zeros.
Otherwise, passing an unrecognized option can cause a segfault.

Fixes: 16e781224198 ("selftests/net: Add a test to validate behavior of rx timestamps")
Signed-off-by: Tanner Love 
Acked-by: Willem de Bruijn 
Signed-off-by: David S. Miller

selftests/net: in timestamping, strncpy needs to preserve null byte

2020-06-09T02:14:28+00:00

If user passed an interface option longer than 15 characters, then
device.ifr_name and hwtstamp.ifr_name became non-null-terminated
strings. The compiler warned about this:

timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \
destination size [-Wstringop-truncation]
  353 |  strncpy(device.ifr_name, interface, sizeof(device.ifr_name));

Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets")
Signed-off-by: Tanner Love 
Acked-by: Willem de Bruijn 
Signed-off-by: David S. Miller

net/tls(TLS_SW): Add selftest for 'chunked' sendfile test

2020-06-09T02:01:54+00:00

This selftest tests for cases where sendfile's 'count'
parameter is provided with a size greater than the intended
file size.

Motivation: When sendfile is provided with 'count' parameter
value that is greater than the size of the file, kTLS example
fails to send the file correctly. Last chunk of the file is
not sent, and the data integrity is compromised.
The reason is that the last chunk has MSG_MORE flag set
because of which it gets added to pending records, but is
not pushed.
Note that if user space were to send SSL_shutdown control
message, pending records would get flushed and the issue
would not happen. So a shutdown control message following
sendfile can mask the issue.

Signed-off-by: Pooja Trivedi 
Signed-off-by: Mallesham Jatharkonda 
Signed-off-by: Josh Tway 
Reviewed-by: Jakub Kicinski 
Signed-off-by: David S. Miller

selftests: net: ip_defrag: ignore EPERM

2020-06-02T22:54:20+00:00

When running with conntrack rules, the dropped overlap fragments may cause
EPERM to be returned to sendto. Instead of completely failing, just ignore
those errors and continue. If this causes packets with overlap fragments to
be dropped as expected, that is okay. And if it causes packets that are
expected to be received to be dropped, which should not happen, it will be
detected as failure.

Signed-off-by: Thadeu Lima de Souza Cascardo 
Signed-off-by: David S. Miller

selftests: mlxsw: Add test for control packets

2020-06-01T18:49:23+00:00

Generate packets matching the various control traps and check that the
traps' stats increase accordingly.

Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: pedit_dsfield: Check counter value

2020-05-31T04:48:24+00:00

A missing stats_update callback was recently added to act_pedit. Now that
iproute2 supports JSON dumping for pedit, extend the pedit_dsfield selftest
with a check that would have caught the fact that the callback was missing.

Signed-off-by: Petr Machata 
Signed-off-by: David S. Miller

selftests: forwarding: mirror_lib: Use mausezahn

2020-05-31T04:48:24+00:00

Using ping in tests is error-prone, because ping is too smart. On a
flaky system (notably in a simulator), when packets don't come quickly
enough, more pings are sent, and that throws off counters. Instead use
mausezahn to generate ICMP echo request packets. That allows us to
send them in quicker succession as well, because the reason the ping
was made slow in the first place was to make the tests work on
simulated systems.

Signed-off-by: Petr Machata 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: Add torture tests to nexthop tests

2020-05-28T18:00:31+00:00

Add Nik's torture tests as a new set to stress the replace and cleanup
paths.

Torture test created by Nikolay Aleksandrov and then I adapted to
selftest and added IPv6 version.

Signed-off-by: David Ahern 
Signed-off-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller

net: add large ecmp group nexthop tests

2020-05-27T18:38:43+00:00

Add a couple large ecmp group nexthop selftests to cover
the remnant fixed by d69100b8eee27c2d60ee52df76e0b80a8d492d34.

The tests create 100 x32 ecmp groups of ipv4 and ipv6 and then
dump them. On kernels without the fix, they will fail due
to data remnant during the dump.

Signed-off-by: Stephen Worley 
Reviewed-by: David Ahern 
Reviewed-by: David Ahern 
Signed-off-by: David S. Miller

selftests: net: add fdb nexthop tests

2020-05-22T21:00:38+00:00

This commit adds ipv4 and ipv6 fdb nexthop api tests to fib_nexthops.sh.

Signed-off-by: Roopa Prabhu 
Reviewed-by: David Ahern 
Signed-off-by: David S. Miller