linux-stable.git/tools/testing/selftests/net/Makefile, branch linux-6.3.y

selftest: Add test for bind() conflicts.

2023-03-15T07:24:10+00:00

The test checks if (IPv4, IPv6) address pair properly conflict or not.

  * IPv4
    * 0.0.0.0
    * 127.0.0.1

  * IPv6
    * ::
    * ::1

If the IPv6 address is [::], the second bind() always fails.

Signed-off-by: Kuniyuki Iwashima 
Signed-off-by: Jakub Kicinski

selftests: seg6: add selftest for PSP flavor in SRv6 End behavior

2023-02-16T12:18:06+00:00

This selftest is designed for testing the PSP flavor in SRv6 End behavior.
It instantiates a virtual network composed of several nodes: hosts and
SRv6 routers. Each node is realized using a network namespace that is
properly interconnected to others through veth pairs.
The test makes use of the SRv6 End behavior and of the PSP flavor needed
for removing the SRH from the IPv6 header at the penultimate node.

The correct execution of the behavior is verified through reachability
tests carried out between hosts.

Signed-off-by: Andrea Mayer 
Signed-off-by: Paolo Lungaroni 
Reviewed-by: David Ahern 
Signed-off-by: Paolo Abeni

self-tests: introduce self-tests for RPS default mask

2023-02-10T01:45:55+00:00

Ensure that RPS default mask changes take place on
all newly created netns/devices and don't affect
existing ones.

Signed-off-by: Paolo Abeni 
Reviewed-by: Simon Horman 
Reviewed-by: Eric Dumazet 
Signed-off-by: Jakub Kicinski

selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option

2023-01-26T06:45:00+00:00

Exercise IP_LOCAL_PORT_RANGE socket option in various scenarios:

1. pass invalid values to setsockopt
2. pass a range outside of the per-netns port range
3. configure a single-port range
4. exhaust a configured multi-port range
5. check interaction with late-bind (IP_BIND_ADDRESS_NO_PORT)
6. set then get the per-socket port range

Reviewed-by: Kuniyuki Iwashima 
Signed-off-by: Jakub Sitnicki 
Signed-off-by: Jakub Kicinski

selftests/net: mv bpf/nat6to4.c to net folder

2023-01-19T12:25:53+00:00

There are some issues with the bpf/nat6to4.c building.

1. It use TEST_CUSTOM_PROGS, which will add the nat6to4.o to
   kselftest-list file and run by common run_tests.
2. When building the test via `make -C tools/testing/selftests/
   TARGETS="net"`, the nat6to4.o will be build in selftests/net/bpf/
   folder. But in test udpgro_frglist.sh it refers to ../bpf/nat6to4.o.
   The correct path should be ./bpf/nat6to4.o.
3. If building the test via `make -C tools/testing/selftests/ TARGETS="net"
   install`. The nat6to4.o will be installed to kselftest_install/net/
   folder. Then the udpgro_frglist.sh should refer to ./nat6to4.o.

To fix the confusing test path, let's just move the nat6to4.c to net folder
and build it as TEST_GEN_FILES.

Fixes: edae34a3ed92 ("selftests net: add UDP GRO fraglist + bpf self-tests")
Tested-by: Björn Töpel 
Signed-off-by: Hangbin Liu 
Link: https://lore.kernel.org/r/20230118020927.3971864-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni

selftests/net: add csum offload test

2022-11-30T05:24:32+00:00

Test NIC hardware checksum offload:

- Rx + Tx
- IPv4 + IPv6
- TCP + UDP

Optional features:

- zero checksum 0xFFFF
- checksum disable 0x0000
- transport encap headers
- randomization

See file header for detailed comments.

Expected results differ depending on NIC features:

- CHECKSUM_UNNECESSARY vs CHECKSUM_COMPLETE
- NETIF_F_HW_CSUM (csum_start/csum_off) vs NETIF_F_IP(V6)_CSUM

Signed-off-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20221128140210.553391-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski

selftests: add a selftest for sctp vrf

2022-11-18T11:42:54+00:00

This patch adds 12 small test cases: 01-04 test for the sysctl
net.sctp.l3mdev_accept. 05-10 test for only binding to a right
l3mdev device, the connection can be created. 11-12 test for
two socks binding to different l3mdev devices at the same time,
each of them can process the packets from the corresponding
peer. The tests run for both IPv4 and IPv6 SCTP.

Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

selftest: Add test for SO_INCOMING_CPU.

2022-10-25T09:35:16+00:00

Some highly optimised applications use SO_INCOMING_CPU to make them
efficient, but they didn't test if it's working correctly by getsockopt()
to avoid slowing down.  As a result, no one noticed it had been broken
for years, so it's a good time to add a test to catch future regression.

The test does

  1) Create $(nproc) TCP listeners associated with each CPU.

  2) Create 32 child sockets for each listener by calling
     sched_setaffinity() for each CPU.

  3) Check if accept()ed sockets' sk_incoming_cpu matches
     listener's one.

If we see -EAGAIN, SO_INCOMING_CPU is broken.  However, we might not see
any error even if broken; the kernel could miraculously distribute all SYN
to correct listeners.  Not to let that happen, we must increase the number
of clients and CPUs to some extent, so the test requires $(nproc) >= 2 and
creates 64 sockets at least.

Test:
  $ nproc
  96
  $ ./so_incoming_cpu

Before the previous patch:

  # Starting 12 tests from 5 test cases.
  #  RUN           so_incoming_cpu.before_reuseport.test1 ...
  # so_incoming_cpu.c:191:test1:Expected cpu (5) == i (0)
  # test1: Test terminated by assertion
  #          FAIL  so_incoming_cpu.before_reuseport.test1
  not ok 1 so_incoming_cpu.before_reuseport.test1
  ...
  # FAILED: 0 / 12 tests passed.
  # Totals: pass:0 fail:12 xfail:0 xpass:0 skip:0 error:0

After:

  # Starting 12 tests from 5 test cases.
  #  RUN           so_incoming_cpu.before_reuseport.test1 ...
  # so_incoming_cpu.c:199:test1:SO_INCOMING_CPU is very likely to be working correctly with 3072 sockets.
  #            OK  so_incoming_cpu.before_reuseport.test1
  ok 1 so_incoming_cpu.before_reuseport.test1
  ...
  # PASSED: 12 / 12 tests passed.
  # Totals: pass:12 fail:0 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: Kuniyuki Iwashima 
Signed-off-by: Paolo Abeni

selftests: add selftest for chaining of tc ingress handling to egress

2022-10-19T13:04:36+00:00

This test runs a simple ingress tc setup between two veth pairs,
then adds a egress->ingress rule to test the chaining of tc ingress
pipeline to tc egress piepline.

Signed-off-by: Paul Blakey 
Signed-off-by: David S. Miller

selftests/net: enable io_uring sendzc testing

2022-09-27T14:59:57+00:00

d8b6171bd58a5 ("selftests/io_uring: test zerocopy send") added io_uring
zerocopy tests but forgot to enable it in make runs. Add missing
io_uring_zerocopy_tx.sh into TEST_PROGS.

Signed-off-by: Pavel Begunkov 
Link: https://lore.kernel.org/r/28e743602cdd54ffc49f68bbcbcbafc59ba22dc2.1664142210.git.asml.silence@gmail.com
Signed-off-by: Jakub Kicinski