diff options
| author | Dmitry Safonov <0x7f454c46@gmail.com> | 2024-08-24 01:04:58 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-28 00:11:27 +0300 |
| commit | 586d87021f224b0434372f5b4418216e29b0a544 (patch) | |
| tree | 4455fded839323f5a798e878cbd97118ab970191 /tools/testing/selftests/net/tcp_ao/lib/kconfig.c | |
| parent | 044e037051252ca8df07e1355bf4d7964645a6e8 (diff) | |
| download | linux-586d87021f224b0434372f5b4418216e29b0a544.tar.xz | |
selftests/net: Add trace events matching to tcp_ao
Setup trace points, add a new ftrace instance in order to not interfere
with the rest of the system, filtering by net namespace cookies.
Raise a new background thread that parses trace_pipe, matches them with
the list of expected events.
Wiring up trace events to selftests provides another insight if there is
anything unexpected happining in the tcp-ao code (i.e. key rotation when
it's not expected).
Note: in real programs libtraceevent should be used instead of this
manual labor of setting ftrace up and parsing. I'm not using it here
as I don't want to have an .so library dependency that one would have to
bring into VM or DUT (Device Under Test). Please, don't copy it over
into any real world programs, that aren't tests.
Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://patch.msgid.link/20240823-tcp-ao-selftests-upd-6-12-v4-8-05623636fe8c@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net/tcp_ao/lib/kconfig.c')
| -rw-r--r-- | tools/testing/selftests/net/tcp_ao/lib/kconfig.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/tcp_ao/lib/kconfig.c b/tools/testing/selftests/net/tcp_ao/lib/kconfig.c index 3bf4a7e4b3c9..9f1c175846f8 100644 --- a/tools/testing/selftests/net/tcp_ao/lib/kconfig.c +++ b/tools/testing/selftests/net/tcp_ao/lib/kconfig.c @@ -116,6 +116,12 @@ static int has_vrfs(int *err) return ret; } +static int has_ftrace(int *err) +{ + *err = test_setup_tracing(); + return 0; +} + #define KCONFIG_UNKNOWN 1 static pthread_mutex_t kconfig_lock = PTHREAD_MUTEX_INITIALIZER; static struct kconfig_t kconfig[__KCONFIG_LAST__] = { @@ -124,6 +130,7 @@ static struct kconfig_t kconfig[__KCONFIG_LAST__] = { { KCONFIG_UNKNOWN, has_tcp_ao }, { KCONFIG_UNKNOWN, has_tcp_md5 }, { KCONFIG_UNKNOWN, has_vrfs }, + { KCONFIG_UNKNOWN, has_ftrace }, }; const char *tests_skip_reason[__KCONFIG_LAST__] = { @@ -132,6 +139,7 @@ const char *tests_skip_reason[__KCONFIG_LAST__] = { "Tests require TCP-AO support (CONFIG_TCP_AO)", "setsockopt(TCP_MD5SIG_EXT) is not supported (CONFIG_TCP_MD5)", "VRFs are not supported (CONFIG_NET_VRF)", + "Ftrace points are not supported (CONFIG_TRACEPOINTS)", }; bool kernel_config_has(enum test_needs_kconfig k) |