Commit Graph

57 Commits

Author SHA1 Message Date
Davide Caratti 7a1b3490f4 mptcp: don't account accept() of non-MPC client as fallback to TCP
Current MPTCP servers increment MPTcpExtMPCapableFallbackACK when they
accept non-MPC connections. As reported by Christoph, this is "surprising"
because the counter might become greater than MPTcpExtMPCapableSYNRX.

MPTcpExtMPCapableFallbackACK counter's name suggests it should only be
incremented when a connection was seen using MPTCP options, then a
fallback to TCP has been done. Let's do that by incrementing it when
the subflow context of an inbound MPC connection attempt is dropped.
Also, update mptcp_connect.sh kselftest, to ensure that the
above MIB does not increment in case a pure TCP client connects to a
MPTCP server.

Fixes: fc518953bc ("mptcp: add and use MIB counter infrastructure")
Cc: stable@vger.kernel.org
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/449
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240329-upstream-net-20240329-fallback-mib-v1-1-324a8981da48@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-01 21:25:00 -07:00
Geliang Tang 8f7a69a8e7 selftests: mptcp: use KSFT_SKIP/KSFT_PASS/KSFT_FAIL
This patch uses the public var KSFT_SKIP in mptcp_lib.sh instead of
ksft_skip, and drop 'ksft_skip=4' in mptcp_join.sh.

Use KSFT_PASS and KSFT_FAIL macros instead of 0 and 1 after 'exit '
and 'ret=' in all scripts:

        exit 0 -> exit ${KSFT_PASS}
        exit 1 -> exit ${KSFT_FAIL}
         ret=0 ->  ret=${KSFT_PASS}
         ret=1 ->  ret=${KSFT_FAIL}

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-15-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:27 -07:00
Geliang Tang 747ba8783a selftests: mptcp: print test results with colors
To unify the output formats of all test scripts, this patch adds
four more helpers:

	mptcp_lib_pr_ok()
	mptcp_lib_pr_skip()
	mptcp_lib_pr_fail()
	mptcp_lib_pr_info()

to print out [ OK ], [SKIP], [FAIL] and 'INFO: ' with colors. Use them
in all scripts to print the "ok/skip/fail/info' using the same 'format'.

Having colors helps to quickly identify issues when looking at a long
list of output logs and results.

Note that now all print the same keywords, which was not the case
before, but it is good to uniform that.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-9-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:26 -07:00
Geliang Tang e7c42bf4d3 selftests: mptcp: use += operator to append strings
This patch uses addition assignment operator (+=) to append strings
instead of duplicating the variable name in mptcp_connect.sh and
mptcp_join.sh.

This can make the statements shorter.

Note: in mptcp_connect.sh, add a local variable extra in do_transfer to
save the various extra warning logs, using += to append it. And add a
new variable tc_info to save various tc info, also using += to append it.
This can make the code more readable and prepare for the next commit.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-8-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:26 -07:00
Geliang Tang aa7694766f selftests: mptcp: print test results with counters
This patch adds a new helper mptcp_lib_print_title(), a wrapper of
mptcp_lib_inc_test_counter() and mptcp_lib_pr_title_counter(), to
print out test counter in each test result and increase the counter.
Use this helper to print out test counters for every tests in diag.sh,
mptcp_connect.sh, mptcp_sockopt.sh, pm_netlink.sh, simult_flows.sh,
and userspace_pm.sh.

diag.sh:

01 no msk on netns creation                          [  ok  ]
02 listen match for dport 10000                      [  ok  ]
03 listen match for sport 10000                      [  ok  ]
04 listen match for saddr and sport                  [  ok  ]
05 all listen sockets                                [  ok  ]

mptcp_connect.sh:

01 New MPTCP socket can be blocked via sysctl                       [ OK ]
02 Validating network environment with pings                        [ OK ]
INFO: Using loss of 0.85% delay 31 ms reorder .. with delay 7ms on ns3eth4
03 ns1 MPTCP -> ns1 (10.0.1.1:10000  ) MPTCP     (duration    69ms) [ OK ]
04 ns1 MPTCP -> ns1 (10.0.1.1:10001  ) TCP       (duration    20ms) [ OK ]
05 ns1 TCP   -> ns1 (10.0.1.1:10002  ) MPTCP     (duration    16ms) [ OK ]

mptcp_sockopt.sh:

01 Transfer v4                                       [ OK ]
02 Mark v4                                           [ OK ]
03 Transfer v6                                       [ OK ]
04 Mark v6                                           [ OK ]
05 SOL_MPTCP sockopt v4                              [ OK ]

pm_netlink.sh:

01 defaults addr list                                [ OK ]
02 simple add/get addr                               [ OK ]
03 dump addrs                                        [ OK ]
04 simple del addr                                   [ OK ]
05 dump addrs after del                              [ OK ]

simult_flows.sh:

01 balanced bwidth                                     7391 max 8456 [ OK ]
02 balanced bwidth - reverse direction                 7403 max 8456 [ OK ]
03 balanced bwidth with unbalanced delay               7429 max 8456 [ OK ]
04 balanced bwidth with unbalanced delay - reverse ... 7485 max 8456 [ OK ]
05 unbalanced bwidth                                   7549 max 8456 [ OK ]

userspace_pm.sh:

01 Created network namespaces ns1, ns2                               [ OK ]
INFO: Make connections
02 Established IPv4 MPTCP Connection ns2 => ns1                      [ OK ]
03 Established IPv6 MPTCP Connection ns2 => ns1                      [ OK ]
INFO: Announce tests
04 ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token                     [ OK ]
05 ADD_ADDR id:67 10.0.2.2 (ns2) => ns1, reuse port                  [ OK ]

Having test counters helps to quickly identify issues when looking at a
long list of output logs and results.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-7-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:26 -07:00
Geliang Tang 9e6a39ecb9 selftests: mptcp: export TEST_COUNTER variable
Variable TEST_COUNT are used in mptcp_connect.sh and mptcp_join.sh as
test counters, which are initialized to 0, while variable test_cnt are used
in diag.sh and simult_flows.sh, which are initialized to 1. To maintain
consistency, this patch renames them all as MPTCP_LIB_TEST_COUNTER,
initializes it to 1, and exports it into mptcp_lib.sh.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-5-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:26 -07:00
Geliang Tang c9161a0f8f selftests: mptcp: connect: fix misaligned output
The first [ OK ] in the output of mptcp_connect.sh misaligns with the
others:

New MPTCP socket can be blocked via sysctl              [ OK ]
INFO: validating network environment with pings
INFO: Using loss of 0.85% delay 16 ms reorder 95% 70% with delay 4ms on
ns1 MPTCP -> ns1 (10.0.1.1:10000      ) MPTCP   (duration   184ms) [ OK ]
ns1 MPTCP -> ns1 (10.0.1.1:10001      ) TCP     (duration    50ms) [ OK ]
ns1 TCP   -> ns1 (10.0.1.1:10002      ) MPTCP   (duration    55ms) [ OK ]

This patch aligns them by using 69 chars to display the first two lines,
and 50 chars for the other. Since 19 chars are used to display duration
time. Also print out a [ OK ] at the end of the 2nd line for consistency.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-3-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:25 -07:00
Geliang Tang 01ed983810 selftests: mptcp: connect: add dedicated port counter
This patch adds a new dedicated counter 'port' instead of TEST_COUNT
to increase port numbers in mptcp_connect.sh.

This can avoid outputting discontinuous test counters.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-2-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:25 -07:00
Geliang Tang 6215df11b9 selftests: mptcp: print all error messages to stdout
Some error messages are printed to stderr while the others are printed
to 'stdout'. As part of the unification, this patch drop "1>&2" to let
all errors messages are printed to 'stdout'.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-1-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 15:07:25 -07:00
Matthieu Baerts (NGI0) e3aae1098f selftests: mptcp: connect: fix shellcheck warnings
shellcheck recently helped to prevent issues. It is then good to fix the
other harmless issues in order to spot "real" ones later.

Here, two categories of warnings are now ignored:

- SC2317: Command appears to be unreachable. The cleanup() function is
  invoked indirectly via the EXIT trap.

- SC2086: Double quote to prevent globbing and word splitting. This is
  recommended, but the current usage is correct and there is no need to
  do all these modifications to be compliant with this rule.

For the modifications:

  - SC2034: ksft_skip appears unused.
  - SC2181: Check exit code directly with e.g. 'if mycmd;', not
            indirectly with $?.
  - SC2004: $/${} is unnecessary on arithmetic variables.
  - SC2155: Declare and assign separately to avoid masking return
            values.
  - SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
  - SC2059: Don't use variables in the printf format string. Use printf
            '..%s..' "$foo".

Now this script is shellcheck (0.9.0) compliant. We can easily spot new
issues.

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-8-bc79e6e5e6a0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:06:52 -08:00
Geliang Tang df8d3ba55b selftests: mptcp: more operations in ns_init/exit
Set more the default sysctl values in mptcp_lib_ns_init(). It is fine to
do that everywhere, because they could be overridden latter if needed.

mptcp_lib_ns_exit() now also try to remove temp netns files used for the
stats even for selftests not using them. That's fine to do that because
these files have a unique name.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-5-bc79e6e5e6a0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:06:52 -08:00
Geliang Tang 3a0f9bed3c selftests: mptcp: add mptcp_lib_ns_init/exit helpers
Add helpers mptcp_lib_ns_init() and mptcp_lib_ns_exit() in mptcp_lib.sh
to initialize and delete the given namespaces. Then every test script
can invoke these helpers and use all namespaces.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-4-bc79e6e5e6a0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:06:52 -08:00
Geliang Tang 4214aac14e selftests: mptcp: add local variables rndh
This patch adds local variables rndh in do_transfer() functions both in
mptcp_connect.sh and simult_flows.sh, setting it with ${ns1:4}, not the
global variable rndh. The global one is hidden in the next commit.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-3-bc79e6e5e6a0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:06:51 -08:00
Geliang Tang 3fb8c33ef4 selftests: mptcp: add mptcp_lib_check_tools helper
This patch exports check_tools() helper from mptcp_join.sh into
mptcp_lib.sh as a public one mptcp_lib_check_tools(). The arguments
"ip", "ss", "iptables" and "ip6tables" are passed into this helper
to indicate whether to check ip tool, ss tool, iptables and ip6tables
tools.

This helper can be used in every scripts.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240306-upstream-net-next-20240304-selftests-mptcp-shared-code-shellcheck-v2-2-bc79e6e5e6a0@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:06:51 -08:00
Geliang Tang 9369777c29 selftests: mptcp: add mptcp_lib_wait_local_port_listen
To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

wait_local_port_listen() helper is defined in diag.sh, mptcp_connect.sh,
mptcp_join.sh and simult_flows.sh, export it into mptcp_lib.sh and
rename it with mptcp_lib_ prefix. Use this new helper in all these
scripts.

Note: We only have IPv4 connections in this helper, not looking at IPv6
(tcp6) but that's OK because we only have IPv4 connections here in diag.sh.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-15-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:19 -08:00
Geliang Tang 9d9095bbc2 selftests: mptcp: add mptcp_lib_check_transfer
To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

check_transfer() and print_file_err() helpers are defined both in
mptcp_connect.sh and mptcp_sockopt.sh, export them into mptcp_lib.sh
and rename them with mptcp_lib_ prefix. And use them in all scripts.

Note: In mptcp_sockopt.sh it is OK to drop 'ret=1' in check_transfer()
because it will be set in run_tests() anyway.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-14-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:19 -08:00
Geliang Tang 3a96dea9f8 selftests: mptcp: add mptcp_lib_make_file
To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

make_file() helper in mptcp_sockopt.sh and userspace_pm.sh are the same.
Export it into mptcp_lib.sh and rename it as mptcp_lib_kill_wait(). Use
it in both mptcp_connect.sh and mptcp_join.sh.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-13-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:18 -08:00
Geliang Tang 119931cc88 selftests: mptcp: add missing oflag=append
In mptcp_connect.sh we are missing something like "oflag=append"
because this will write "${rem}" bytes at the beginning of the file
where there is already some random bytes. It should write that at
the end.

This patch adds this missing 'oflag=append' flag for 'dd' command in
make_file().

Suggested-by: Matthieu Baerts <matttbe@kernel.org>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-12-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:18 -08:00
Geliang Tang 61c131f5d4 selftests: mptcp: add mptcp_lib_get_counter
To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

The helper get_counter() in mptcp_join.sh and get_mib_counter() in
mptcp_connect.sh have the same functionality, export get_counter() into
mptcp_lib.sh and rename it as mptcp_lib_get_counter(). Use this new
helper instead of get_counter() and get_mib_counter().

Use this helper in test_prio() in userspace_pm.sh too instead of
open-coding.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-11-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:18 -08:00
Geliang Tang b850f2c7dd selftests: mptcp: add mptcp_lib_is_v6
To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

is_v6() helper is defined in mptcp_connect.sh, mptcp_join.sh and
mptcp_sockopt.sh, so export it into mptcp_lib.sh and rename it as
mptcp_lib_is_v6(). Use this new helper in all scripts.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-10-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-29 20:06:18 -08:00
Matthieu Baerts dd350f46e3 selftests: mptcp: connect: format subtests results in TAP
The current selftests infrastructure formats the results in TAP 13. This
version doesn't support subtests and only the end result of each
selftest is taken into account. It means that a single issue in a
subtest of a selftest containing multiple subtests forces the whole
selftest to be marked as failed. It also means that subtests results are
not tracked by CIs executing selftests.

MPTCP selftests run hundreds of various subtests. It is then important
to track each of them and not one result per selftest.

It is particularly interesting to do that when validating stable kernels
with the last version of the test suite: tests might fail because a
feature is not supported but the test didn't skip that part. In this
case, if subtests are not tracked, the whole selftest will be marked as
failed making the other subtests useless because their results are
ignored.

This patch formats subtests results in TAP in mptcp_connect.sh selftest.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-19 11:10:52 +01:00
Matthieu Baerts edbc16c43b selftests: mptcp: connect: don't stop if error
No more tests were executed after a failure but it is still interesting
to get results for all the tests to better understand what's still OK
and what's not after a modification.

Now we only exit earlier if the basic tests are failing: no ping going
through namespaces or unable to transfer data on the loopback interface.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-19 11:10:52 +01:00
Matthieu Baerts 221e455045 selftests: mptcp: connect: fail if nft supposed to work
In case of "external" errors when preparing the environment for the
TProxy tests, the subtests were marked as skipped.

This is fine but it means these errors are ignored. On MPTCP Public CI,
we do want to catch such issues and mark the selftest as failed if there
are such issues. We can then use mptcp_lib_fail_if_expected_feature()
helper that has been recently added to fail if needed.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 5fb62e9cd3 ("selftests: mptcp: add tproxy test case")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-05 10:51:14 +01:00
Yueh-Shun Li e6b8a78ea2 selftests: mptcp: connect: fix comment typo
Spell "transmissions" properly.

Found by searching for keyword "tranm".

Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Yueh-Shun Li <shamrocklee@posteo.net>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20230623-send-net-next-20230623-v1-8-a883213c8ba9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-24 15:37:57 -07:00
Matthieu Baerts 06b0308315 selftests: mptcp: connect: skip TFO tests if not supported
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the support of TCP_FASTOPEN socket option with MPTCP
connections introduced by commit 4ffb0a0234 ("mptcp: add TCP_FASTOPEN
sock option").

It is possible to look for "mptcp_fastopen_" in kallsyms to know if the
feature is supported or not.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: ca7ae89160 ("selftests: mptcp: mptfo Initiator/Listener")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-10 00:02:16 -07:00
Matthieu Baerts 4ad39a42da selftests: mptcp: connect: skip disconnect tests if not supported
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the full support of disconnections from the userspace
introduced by commit b29fcfb54c ("mptcp: full disconnect
implementation").

It is possible to look for "mptcp_pm_data_reset" in kallsyms because a
preparation patch added it to ease the introduction of the mentioned
feature.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 05be5e273c ("selftests: mptcp: add disconnect tests")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-10 00:02:15 -07:00
Matthieu Baerts 07bf494019 selftests: mptcp: connect: skip transp tests if not supported
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the support of IP(V6)_TRANSPARENT socket option with
MPTCP connections introduced by commit c9406a23c1 ("mptcp: sockopt:
add SOL_IP freebind & transparent options").

It is possible to look for "__ip_sock_set_tos" in kallsyms because
IP(V6)_TRANSPARENT socket option support has been added after TOS
support which came with the required infrastructure in MPTCP sockopt
code. To support TOS, the following function has been exported (T). Not
great but better than checking for a specific kernel version.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 5fb62e9cd3 ("selftests: mptcp: add tproxy test case")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-10 00:02:15 -07:00
Matthieu Baerts d83013bdf9 selftests: mptcp: connect: skip if MPTCP is not supported
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.

A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped". Note that this check can also
mark the test as failed if 'SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES' env
var is set to 1: by doing that, we can make sure a test is not being
skipped by mistake.

A new shared file is added here to be able to re-used the same check in
the different selftests we have.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 048d19d444 ("mptcp: add basic kselftest for mptcp")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-30 13:21:02 +02:00
Matthieu Baerts 787eb1e4df selftests: mptcp: uniform 'rndh' variable
The definition of 'rndh' was probably copied from one script to another
but some times, 'sec' was not defined, not used and/or not spelled
properly.

Here all the 'rndh' are now defined the same way.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-01 20:06:06 -08:00
Matthieu Baerts b71dd70517 selftests: mptcp: removed defined but unused vars
Some variables were set but never used.

This was not causing any issues except adding some confusion and having
shellcheck complaining about them.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-01 20:06:05 -08:00
Dmytro Shytyi ca7ae89160 selftests: mptcp: mptfo Initiator/Listener
This patch first adds TFO support in mptcp_connect.c.

This can be enabled via a new option: -o MPTFO.

Once enabled, the TCP_FASTOPEN socket option is enabled for the server
side and a sendto() with MSG_FASTOPEN is used instead of a connect() for
the client side.

Note that the first SYN has a limit of bytes it can carry. In other
words, it is allowed to send less data than the provided one. We then
need to track more status info to properly allow the next sendmsg()
starting from the next part of the data to send the rest.

Also in TFO scenarios, we need to completely spool the partially xmitted
buffer -- and account for that -- before starting sendfile/mmap xmit,
otherwise the relevant tests will fail.

Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Dmytro Shytyi <dmytro@shytyi.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-29 20:24:26 -08:00
Jakub Kicinski 80901bff81 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
net/batman-adv/hard-interface.c
  commit 690bb6fb64 ("batman-adv: Request iflink once in batadv-on-batadv check")
  commit 6ee3c393ee ("batman-adv: Demote batadv-on-batadv skip error message")
https://lore.kernel.org/all/20220302163049.101957-1-sw@simonwunderlich.de/

net/smc/af_smc.c
  commit 4d08b7b57e ("net/smc: Fix cleanup when register ULP fails")
  commit 462791bbfa ("net/smc: add sysctl interface for SMC")
https://lore.kernel.org/all/20220302112209.355def40@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-03 11:55:12 -08:00
Paolo Abeni 63bb8239d8 selftests: mptcp: do complete cleanup at exit
After commit 05be5e273c ("selftests: mptcp: add disconnect tests")
the mptcp selftests leave behind a couple of tmp files after
each run. run_tests_disconnect() misnames a few variables used to
track them. Address the issue setting the appropriate global variables

Fixes: 05be5e273c ("selftests: mptcp: add disconnect tests")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-24 21:54:54 -08:00
Geliang Tang 24720d7452 selftests: mptcp: add csum mib check for mptcp_connect
This patch added the data checksum error mib counters check for the
script mptcp_connect.sh when the data checksum is enabled.

In do_transfer(), got the mib counters twice, before and after running
the mptcp_connect commands. The latter minus the former is the actual
number of the data checksum mib counter.

The output looks like this:

ns1 MPTCP -> ns2 (dead:beef:1::2:10007) MPTCP   (duration    86ms) [ OK ]
ns1 MPTCP -> ns2 (10.0.2.1:10008      ) MPTCP   (duration    66ms) [ FAIL ]
server got 1 data checksum error[s]

Fixes: 94d66ba1d8 ("selftests: mptcp: enable checksum in mptcp_connect.sh")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/255
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-17 19:59:59 -08:00
Paolo Abeni 05be5e273c selftests: mptcp: add disconnect tests
Performs several disconnect/reconnect on the same socket,
ensuring the overall transfer is succesful.

The new test leverages ioctl(SIOCOUTQ) to ensure all the
pending data is acked before disconnecting.

Additionally order alphabetically the test program arguments list
for better maintainability.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-07 11:27:07 +00:00
Florian Westphal f730b65c9d selftests: mptcp: try to set mptcp ulp mode in different sk states
The kernel will crash without
'mptcp: clear 'kern' flag from fallback sockets' change.

Since this doesn't slow down testing in a noticeable way,
run this unconditionally.

The explicit test did not catch this, because the check was done
for tcp socket returned by 'socket(.. IPPROTO_TCP) rather than a
tcp socket returned by accept() on a mptcp listen fd.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-17 19:27:04 -08:00
Florian Westphal 5fb62e9cd3 selftests: mptcp: add tproxy test case
No hard dependencies here, just skip if test environ lacks
nft binary or the needed kernel config options.

The test case spawns listener in ns2 but ns1 will connect
to the ip address of ns4.

policy routing + tproxy rule will redirect packets to ns2 instead
of forward.

v3: - update mptcp/config (Mat Martineau)
    - more verbose SKIP messages in mptcp_connect.sh

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-20 14:11:00 +00:00
Matthieu Baerts a4debc4772 selftests: mptcp: display proper reason to abort tests
Without this modification, we were often displaying this error messages:

  FAIL: Could not even run loopback test

But $ret could have been set to a non 0 value in many different cases:

- net.mptcp.enabled=0 is not working as expected
- setsockopt(..., TCP_ULP, "mptcp", ...) is allowed
- ping between each netns are failing
- tests between ns1 as a receiver and ns>1 are failing
- other tests not involving ns1 as a receiver are failing

So not only for the loopback test.

Now a clearer message, including the time it took to run all tests, is
displayed.

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-22 09:57:45 -07:00
Jakub Kicinski adc2e56ebe Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflicts in net/can/isotp.c and
tools/testing/selftests/net/mptcp/mptcp_connect.sh

scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c
to include/linux/ptp_clock_kernel.h in -next so re-apply
the fix there.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-06-18 19:47:02 -07:00
Geliang Tang 94d66ba1d8 selftests: mptcp: enable checksum in mptcp_connect.sh
This patch added a new argument "-C" for the mptcp_connect.sh script to
set the sysctl checksum_enabled to 1 in ns1, ns2, ns3 and ns4 to enable
the data checksum.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18 11:40:11 -07:00
Paolo Abeni 2395da0e17 selftests: mptcp: enable syncookie only in absence of reorders
Syncookie validation may fail for OoO packets, causing spurious
resets and self-tests failures, so let's force syncookie only
for tests iteration with no OoO.

Fixes: fed61c4b58 ("selftests: mptcp: make 2nd net namespace use tcp syn cookies unconditionally")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/198
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-10 16:47:45 -07:00
Paolo Abeni 69ca3d29a7 mptcp: update selftest for fallback due to OoO
The previous commit noted that we can have fallback
scenario due to OoO (or packet drop). Update the self-tests
accordingly

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-28 13:51:40 -07:00
Masahiro Yamada 77a88274dc kbuild: replace LANG=C with LC_ALL=C
LANG gives a weak default to each LC_* in case it is not explicitly
defined. LC_ALL, if set, overrides all other LC_* variables.

  LANG  <  LC_CTYPE, LC_COLLATE, LC_MONETARY, LC_NUMERIC, ...  <  LC_ALL

This is why documentation such as [1] suggests to set LC_ALL in build
scripts to get the deterministic result.

LANG=C is not strong enough to override LC_* that may be set by end
users.

[1]: https://reproducible-builds.org/docs/locales/

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Matthias Maennich <maennich@google.com>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> (mptcp)
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-02 00:43:35 +09:00
Yonglong Li df8aee6d6f selftests: mptcp: add a test case for MSG_PEEK
Extend mptcp_connect tool with MSG_PEEK support and add a test case in
mptcp_connect.sh that checks the data received from/after recv() with
MSG_PEEK.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Yonglong Li <liyonglong@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23 14:06:32 -07:00
Matthieu Baerts 76e5e27ca9 selftests: mptcp: init nstat history
Not to be impacted by packets sent between sub-tests.

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-02 14:21:51 -07:00
Matthieu Baerts 5888a61cb4 selftests: mptcp: launch mptcp_connect with timeout
'mptcp_connect' already has a timeout for poll() but in some cases, it
is not enough.

With "timeout" tool, we will force the command to fail if it doesn't
finish on time. Thanks to that, the script will continue and display
details about the current state before marking the test as failed.
Displaying this state is very important to be able to understand the
issue. Best to have our CI reporting the issue than just "the test
hanged".

Note that in mptcp_connect.sh, we were using a long timeout to validate
the fact we cannot create a socket if a sysctl is set. We don't need
this timeout.

In diag.sh, we want to send signals to mptcp_connect instances that have
been started in the netns. But we cannot send this signal to 'timeout'
otherwise that will stop the timeout and messages telling us SIGUSR1 has
been received will be printed. Instead of trying to find the right PID
and storing them in an array, we can simply use the output of
'ip netns pids' which is all the PIDs we want to send signal to.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/160
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-02 14:21:50 -07:00
Matthieu Baerts 5f88117f25 selftests: mptcp: fail if not enough SYN/3rd ACK
If we receive less MPCapable SYN or 3rd ACK than expected, we now mark
the test as failed.

On the other hand, if we receive more, we keep the warning but we add a
hint that it is probably due to retransmissions and that's why we don't
mark the test as failed.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/148
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 16:20:34 -08:00
Matthieu Baerts 45759a8715 selftests: mptcp: display warnings on one line
Before we had this in case of SYN retransmissions:

  (...)
  # ns4 MPTCP -> ns2 (10.0.1.2:10034      ) MPTCP	(duration  1201ms) [ OK ]
  # ns4 MPTCP -> ns2 (dead:beef:1::2:10035) MPTCP	(duration  1242ms) [ OK ]
  # ns4 MPTCP -> ns2 (10.0.2.1:10036      ) MPTCP	ns2-60143c00-cDZWo4 SYNRX: MPTCP -> MPTCP: expect 11, got
  # 13
  # (duration  6221ms) [ OK ]
  # ns4 MPTCP -> ns2 (dead:beef:2::1:10037) MPTCP	(duration  1427ms) [ OK ]
  # ns4 MPTCP -> ns3 (10.0.2.2:10038      ) MPTCP	(duration   881ms) [ OK ]
  (...)

Now we have:

  (...)
  # ns4 MPTCP -> ns2 (10.0.1.2:10034      ) MPTCP	(duration  1201ms) [ OK ]
  # ns4 MPTCP -> ns2 (dead:beef:1::2:10035) MPTCP	(duration  1242ms) [ OK ]
  # ns4 MPTCP -> ns2 (10.0.2.1:10036      ) MPTCP	(duration  6221ms) [ OK ] WARN: SYNRX: expect 11, got 13
  # ns4 MPTCP -> ns2 (dead:beef:2::1:10037) MPTCP	(duration  1427ms) [ OK ]
  # ns4 MPTCP -> ns3 (10.0.2.2:10038      ) MPTCP	(duration   881ms) [ OK ]
  (...)

So we put everything on one line, keep the durations and "OK" aligned
and removed duplicated info to short the warning.

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 16:20:34 -08:00
Matthieu Baerts f384221a38 selftests: mptcp: fix ACKRX debug message
Info from received MPCapable SYN were printed instead of the ones from
received MPCapable 3rd ACK.

Fixes: fed61c4b58 ("selftests: mptcp: make 2nd net namespace use tcp syn cookies unconditionally")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 16:20:34 -08:00
Paolo Abeni 767389c8dd selftests: mptcp: dump more info on errors
Even if that may sound completely unlikely, the mptcp implementation
is not perfect, yet.

When the self-tests report an error we usually need more information
of what the scripts currently report. iproute allow provides
some additional goodies since a few releases, let's dump them.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 16:20:34 -08:00