linux-stable.git/tools/testing/selftests/net, branch v6.6.9

selftests: mptcp: join: fix subflow_send_ack lookup

2024-01-01T12:42:45+00:00

commit c8f021eec5817601dbd25ab7e3ad5c720965c688 upstream.

MPC backups tests will skip unexpected sometimes (For example, when
compiling kernel with an older version of gcc, such as gcc-8), since
static functions like mptcp_subflow_send_ack also be listed in
/proc/kallsyms, with a 't' in front of it, not 'T' ('T' is for a global
function):

 > grep "mptcp_subflow_send_ack" /proc/kallsyms

 0000000000000000 T __pfx___mptcp_subflow_send_ack
 0000000000000000 T __mptcp_subflow_send_ack
 0000000000000000 t __pfx_mptcp_subflow_send_ack
 0000000000000000 t mptcp_subflow_send_ack

In this case, mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"
will be false, MPC backups tests will skip. This is not what we expected.

The correct logic here should be: if mptcp_subflow_send_ack is not a
global function in /proc/kallsyms, do these MPC backups tests. So a 'T'
must be added in front of mptcp_subflow_send_ack.

Fixes: 632978f0a961 ("selftests: mptcp: join: skip MPC backups tests if not supported")
Cc: stable@vger.kernel.org
Signed-off-by: Geliang Tang 
Reviewed-by: Mat Martineau 
Signed-off-by: Matthieu Baerts 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

selftests/net: mptcp: fix uninitialized variable warnings

2023-12-08T07:52:22+00:00

[ Upstream commit 00a4f8fd9c750f20d8fd4535c71c9caa7ef5ff2f ]

Same init_rng() in both tests. The function reads /dev/urandom to
initialize srand(). In case of failure, it falls back onto the
entropy in the uninitialized variable. Not sure if this is on purpose.
But failure reading urandom should be rare, so just fail hard. While
at it, convert to getrandom(). Which man 4 random suggests is simpler
and more robust.

    mptcp_inq.c:525:6:
    mptcp_connect.c:1131:6:

    error: variable 'foo' is used uninitialized
    whenever 'if' condition is false
    [-Werror,-Wsometimes-uninitialized]

Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp")
Fixes: b51880568f20 ("selftests: mptcp: add inq test case")
Cc: Florian Westphal 
Signed-off-by: Willem de Bruijn 

----

When input is randomized because this is expected to meaningfully
explore edge cases, should we also add
1. logging the random seed to stdout and
2. adding a command line argument to replay from a specific seed
I can do this in net-next, if authors find it useful in this case.
Reviewed-by: Matthieu Baerts 

Link: https://lore.kernel.org/r/20231124171645.1011043-5-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests/net: unix: fix unused variable compiler warning

2023-12-08T07:52:22+00:00

[ Upstream commit 59fef379d453781f0dabfa1f1a1e86e78aee919a ]

Remove an unused variable.

    diag_uid.c:151:24:
    error: unused variable 'udr'
    [-Werror,-Wunused-variable]

Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.")
Signed-off-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20231124171645.1011043-4-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests/net: fix a char signedness issue

2023-12-08T07:52:22+00:00

[ Upstream commit 7b29828c5af6841bdeb9fafa32fdfeff7ab9c407 ]

Signedness of char is signed on x86_64, but unsigned on arm64.

Fix the warning building cmsg_sender.c on signed platforms or
forced with -fsigned-char:

    msg_sender.c:455:12:
    error: implicit conversion from 'int' to 'char'
    changes value from 128 to -128
    [-Werror,-Wconstant-conversion]
        buf[0] = ICMPV6_ECHO_REQUEST;

constant ICMPV6_ECHO_REQUEST is 128.

Link: https://lwn.net/Articles/911914
Fixes: de17e305a810 ("selftests: net: cmsg_sender: support icmp and raw sockets")
Signed-off-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20231124171645.1011043-3-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests/net: ipsec: fix constant out of range

2023-12-08T07:52:22+00:00

[ Upstream commit 088559815477c6f623a5db5993491ddd7facbec7 ]

Fix a small compiler warning.

nr_process must be a signed long: it is assigned a signed long by
strtol() and is compared against LONG_MIN and LONG_MAX.

ipsec.c:2280:65:
    error: result of comparison of constant -9223372036854775808
    with expression of type 'unsigned int' is always false
    [-Werror,-Wtautological-constant-out-of-range-compare]

  if ((errno == ERANGE && (nr_process == LONG_MAX || nr_process == LONG_MIN))

Fixes: bc2652b7ae1e ("selftest/net/xfrm: Add test for ipsec tunnel")
Signed-off-by: Willem de Bruijn 
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20231124171645.1011043-2-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

selftests: mptcp: fix fastclose with csum failure

2023-11-28T17:20:14+00:00

commit 7cefbe5e1dacc7236caa77e9d072423f21422fe2 upstream.

Running the mp_join selftest manually with the following command line:

  ./mptcp_join.sh -z -C

leads to some failures:

  002 fastclose server test
  # ...
  rtx                                 [fail] got 1 MP_RST[s] TX expected 0
  # ...
  rstrx                               [fail] got 1 MP_RST[s] RX expected 0

The problem is really in the wrong expectations for the RST checks
implied by the csum validation. Note that the same check is repeated
explicitly in the same test-case, with the correct expectation and
pass successfully.

Address the issue explicitly setting the correct expectation for
the failing checks.

Reported-by: Xiumei Mu 
Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni 
Reviewed-by: Matthieu Baerts 
Signed-off-by: Matthieu Baerts 
Link: https://lore.kernel.org/r/20231114-upstream-net-20231113-mptcp-misc-fixes-6-7-rc2-v1-5-7b9cd6a7b7f4@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

selftests: mptcp: fix wait_rm_addr/sf parameters

2023-11-20T10:59:38+00:00

commit 9168ea02b898d3dde98b51e4bd3fb082bd438dab upstream.

The second input parameter of 'wait_rm_addr/sf $1 1' is misused. If it's
1, wait_rm_addr/sf will never break, and will loop ten times, then
'wait_rm_addr/sf' equals to 'sleep 1'. This delay time is too long,
which can sometimes make the tests fail.

A better way to use wait_rm_addr/sf is to use rm_addr/sf_count to obtain
the current value, and then pass into wait_rm_addr/sf.

Fixes: 4369c198e599 ("selftests: mptcp: test userspace pm out of transfer")
Cc: stable@vger.kernel.org
Suggested-by: Matthieu Baerts 
Reviewed-by: Matthieu Baerts 
Signed-off-by: Geliang Tang 
Signed-off-by: Mat Martineau 
Link: https://lore.kernel.org/r/20231025-send-net-next-20231025-v1-2-db8f25f798eb@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

selftests: mptcp: run userspace pm tests slower

2023-11-20T10:59:38+00:00

commit f4a75e9d11001481dca005541b6dc861e1472f03 upstream.

Some userspace pm tests failed are reported by CI:

112 userspace pm add & remove address
      syn                                 [ ok ]
      synack                              [ ok ]
      ack                                 [ ok ]
      add                                 [ ok ]
      echo                                [ ok ]
      mptcp_info subflows=1:1             [ ok ]
      subflows_total 2:2                  [ ok ]
      mptcp_info add_addr_signal=1:1      [ ok ]
      rm                                  [ ok ]
      rmsf                                [ ok ]
      Info: invert
      mptcp_info subflows=0:0             [ ok ]
      subflows_total 1:1                  [fail]
                         got subflows 0:0 expected 1:1
Server ns stats
TcpPassiveOpens                 2                  0.0
TcpInSegs                       118                0.0

This patch fixes them by changing 'speed' to 5 to run the tests much more
slowly.

Fixes: 4369c198e599 ("selftests: mptcp: test userspace pm out of transfer")
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts 
Signed-off-by: Geliang Tang 
Signed-off-by: Mat Martineau 
Link: https://lore.kernel.org/r/20231025-send-net-next-20231025-v1-1-db8f25f798eb@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Greg Kroah-Hartman

selftests: pmtu.sh: fix result checking

2023-11-20T10:59:35+00:00

[ Upstream commit 63e201916b27260218e528a2f8758be47f99bbf4 ]

In the PMTU test, when all previous tests are skipped and the new test
passes, the exit code is set to 0. However, the current check mistakenly
treats this as an assignment, causing the check to pass every time.

Consequently, regardless of how many tests have failed, if the latest test
passes, the PMTU test will report a pass.

Fixes: 2a9d3716b810 ("selftests: pmtu.sh: improve the test result processing")
Signed-off-by: Hangbin Liu 
Acked-by: Po-Hsu Lin 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin

selftests: mptcp: join: no RST when rm subflow/addr

2023-10-19T16:10:00+00:00

Recently, we noticed that some RST were wrongly generated when removing
the initial subflow.

This patch makes sure RST are not sent when removing any subflows or any
addresses.

Fixes: c2b2ae3925b6 ("mptcp: handle correctly disconnect() failures")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni 
Signed-off-by: Matthieu Baerts 
Signed-off-by: Mat Martineau 
Link: https://lore.kernel.org/r/20231018-send-net-20231018-v1-5-17ecb002e41d@kernel.org
Signed-off-by: Jakub Kicinski