Commit Graph

1725 Commits

Author SHA1 Message Date
John Stultz 98b74e1f31 kselftests: timers: leap-a-day: Change default arguments to help test runs
Change default arguments for leap-a-day to always set the time
each iteration (rather then waiting for midnight UTC), and to
only run 10 interations (rather then infinite).

If one wants to wait for midnight UTC, they can use the new -w
flag, and we add a note to the argument help that -i -1 will
run infinitely.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: stable <stable@vger.kernel.org> [4.13+]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-22 11:34:52 -06:00
Shuah Khan b841065043 selftests: timers: drop support for !KTEST case
There is no need to keep timers tests in sync with external timers
repo. Drop support for !KTEST to support for building and running
timers tests without kselftest framework.

Reference: https://lkml.org/lkml/2017/8/10/952
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: John Stultz <john.stultz@linaro.org>
2017-08-22 11:15:59 -06:00
David S. Miller e2a7c34fb2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
Ingo Molnar 94edf6f3c2 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:

 - Removal of spin_unlock_wait()
 - SRCU updates
 - Torture-test updates
 - Documentation updates
 - Miscellaneous fixes
 - CPU-hotplug fixes
 - Miscellaneous non-RCU fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-21 09:45:19 +02:00
Thomas Gleixner 4e2a809703 Merge branch 'fortglx/4.14/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeepig updates from John Stultz

 - kselftest improvements

 - Use the proper timekeeper in the debug code

 - Prevent accessing an unavailable wakeup source in the alarmtimer sysfs
   interface.
2017-08-20 11:46:46 +02:00
Martin KaFai Lau ad17d0e6c7 bpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_test
This patch makes the needed changes to allow each process of
the INNER_LRU_HASH_PREALLOC test to provide its numa node id
when creating the lru map.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19 21:35:43 -07:00
Luis R. Rodriguez 768dc4e484 test_kmod: fix description for -s -and -c parameters
The descriptions were reversed, correct this.

Link: http://lkml.kernel.org/r/20170809234635.13443-4-mcgrof@kernel.org
Fixes: 64b671204a ("test_sysctl: add generic script to expand on tests")
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Reported-by: Daniel Mentz <danielmentz@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jessica Yu <jeyu@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matt Redfearn <matt.redfearn@imgetc.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Michal Marek <mmarek@suse.com>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-18 15:32:01 -07:00
Greg Hackmann 28be3f8f48 kselftests: timers: set-timer-lat: Add one-shot timer test cases
These testcases are motivated by a recent alarmtimer regression, which
caused one-shot CLOCK_{BOOTTIME,REALTIME}_ALARM timers to become
periodic timers.

The new testcases are very similar to the existing testcases for
repeating timers.  But rather than waiting for 5 alarms, they wait for 5
seconds and verify that the alarm fired exactly once.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-08-17 12:14:58 -07:00
Greg Hackmann a524b1184b kselftests: timers: set-timer-lat: Tweak reporting when timer fires early
Rather than printing an error inside the alarm signal handler, set a
flag that we check later.  This keeps the test from spamming the console
every time the alarm fires early.  It also fixes the test exiting with
error code 0 if this was the only test failure.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-08-17 12:14:54 -07:00
John Stultz 6cc636614e kselftests: timers: freq-step: Fix build warning
Fixes the following build warning:
freq-step.c: In function ‘main’:
freq-step.c:271:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

By returning the return values from ksft_success/fail.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-08-17 12:14:48 -07:00
John Stultz 0aeab46ed8 kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers
On some systems, the kernel headers haven't been updated to include
ADJ_SETOFFSET, so define it in the test if needed.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-08-17 12:14:42 -07:00
Paul E. McKenney 656e7c0c0a Merge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD
doc.2017.08.17a: Documentation updates.
fixes.2017.08.17a: RCU fixes.
hotplug.2017.07.25b: CPU-hotplug updates.
misc.2017.08.17a: Miscellaneous fixes outside of RCU (give or take conflicts).
spin_unlock_wait_no.2017.08.17a: Remove spin_unlock_wait().
srcu.2017.07.27c: SRCU updates.
torture.2017.07.24c: Torture-test updates.
2017-08-17 08:10:04 -07:00
Paul E. McKenney 7e42776d5e rcu: Drive TASKS_RCU directly off of PREEMPT
The actual use of TASKS_RCU is only when PREEMPT, otherwise RCU-sched
is used instead.  This commit therefore makes synchronize_rcu_tasks()
and call_rcu_tasks() available always, but mapped to synchronize_sched()
and call_rcu_sched(), respectively, when !PREEMPT.  This approach also
allows some #ifdefs to be removed from rcutorture.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
2017-08-17 07:26:04 -07:00
Sam Bobroff 99597ceda0 selftests/powerpc: Improve tm-resched-dscr
The tm-resched-dscr self test can, in some situations, run for
several minutes before being successfully interrupted by the context
switch it needs in order to perform the test. This often seems to
occur when the test is being run in a virtual machine.

Improve the test by running it under eat_cpu() to guarantee
contention for the CPU and increase the chance of a context switch.

In practice this seems to reduce the test time, in some cases, from
more than two minutes to under a second.

Also remove the "progress dots" so that if the test does run for a
long time, it doesn't produce large amounts of unnecessary output.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-17 21:56:36 +10:00
Lukáš Doktor 4db26f9e64 rtc: rtctest: Improve support detection
The rtc-generic and opal-rtc are failing to run this test as they do not
support all the features. Let's treat the error returns and skip to the
following test.

Theoretically the test_DATE should be also adjusted, but as it's enabled
on demand I think it makes sense to fail in such case.

Signed-off-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-16 17:48:19 -06:00
Li Zhijian 86db9a11f3 selftests/cpu-hotplug: Skip test when there is only one online cpu
For only one online cpu case, 'make run_tests' try to offline the cpu0 that will
always fail since the host can't offline this unique online cpu.

this patch will skip the test to avoid this failure.

Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-16 17:48:18 -06:00
Li Zhijian 8fe6e53a8e selftests/cpu-hotplug: exit with failure when test occured unexpected behaviors
Previously, 'make run_tests -C cpu-hotplug' always PASS since cpu-on-off-test.sh
always exits 0 even though the test got some unexpected errors like below:
root@debian9:/home/lizhijian/chroot/linux/tools/testing/selftests/cpu-hotplug# make run_tests
pid 878's current affinity mask: 1
pid 878's new affinity mask: 1
CPU online/offline summary:
Cpus in online state: 0
        Cpus in offline state: 0
Limited scope test: one hotplug cpu
        (leaves cpu in the original state):
        online to offline to online: cpu 0
./cpu-on-off-test.sh: line 83: /sys/devices/system/cpu/cpu0/online: Permission denied
offline_cpu_expect_success 0: unexpected fail
./cpu-on-off-test.sh: line 78: /sys/devices/system/cpu/cpu0/online: Permission denied
online_cpu_expect_success 0: unexpected fail
selftests: cpu-on-off-test.sh [PASS]

after this patch, the test will exit with failure once it occurs some unexpected behaviors

Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-16 17:48:18 -06:00
Shuah Khan b274e75c20 selftests: futex: convert test to use ksft TAP13 framework
Convert test to use ksft TAP13 framework to print user friendly
test output which is consistent across kselftest suite.

Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-16 17:45:00 -06:00
John Fastabend 6f6d33f3b3 bpf: selftests add sockmap tests
This generates a set of sockets, attaches BPF programs, and sends some
simple traffic using basic send/recv pattern. Additionally, we do a bunch
of negative tests to ensure adding/removing socks out of the sockmap fail
correctly.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-16 11:27:53 -07:00
John Fastabend 41bc94f535 bpf: selftests: add tests for new __sk_buff members
This adds tests to access new __sk_buff members from sk skb program
type.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-16 11:27:53 -07:00
John Fastabend 69e8cc134b bpf: sockmap sample program
This program binds a program to a cgroup and then matches hard
coded IP addresses and adds these to a sockmap.

This will receive messages from the backend and send them to
the client.

     client:X <---> frontend:10000 client:X <---> backend:10001

To keep things simple this is only designed for 1:1 connections
using hard coded values. A more complete example would allow many
backends and clients.

To run,

 # sockmap <cgroup2_dir>

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-16 11:27:53 -07:00
David S. Miller 463910e2df Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-15 20:23:23 -07:00
Florian Westphal 2cc7659545 selftests: add 'ip get' to rtnetlink.sh
exercise ip/ip6 RTM_GETROUTE doit() callpath.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-15 17:20:54 -07:00
Linus Torvalds 40c6d1b9e2 linux-kselftest-4.13-rc6-fixes
This update consists of important compile and run-time error fixes to
 timers/freq-step, kmod, and sysctl tests.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJZkx4zAAoJEAsCRMQNDUMcDgcP/0RwTUsiddWGA+k9db9giNmU
 3vbeZ6iEqYN+YIVJtwVLQOdU0HXi4SwR7tG8EMED75uJhG3C/wYKwJSRmUTN4dYt
 Z6R/B3WwWveNL7+g071seT7P9JGFO8gHCoj1NU0R+YKpNozf7yviFAvYO2i4yqE6
 mZpFIL46dFkY4hnNc43R5CWiRqxEgn1IufUR1ot0MNCIydp7Bb3UcVbrFLPI+Mnr
 menDCWciHwtVNf4ldwoxCXp6fLshK5BbD4XXvo8TZWA/68S3MnGdI8eV8ZfNTLO8
 LTTmGBgnwIYsoQAix97ygU+MhBuGNPubZHhVzurCwPoKf1/K6m/D4W+7RHlSy/6x
 m2+Z1RgFlE5aNy5nGqWdz23ZS77WHPKrOW4Yrc4vASlAWjMn1lD1JAsG/AturNo1
 f8URCFUFR82eIrVFBngAWVRmQcNQTP4ZrBWW3a9goUiVTLzBAtfvlgTzGbrlnxrJ
 ZVpxhmmBVZ5QiWAyDU6nYJ/3fG3q7SFnwRCRJAQFSSit2bsst2spy+qqGJOZAyn+
 vsey1h6JIFrs7MBtb/LhkSkT5DnQRpbf55/B+MQUKuynuLZ5FzLMNHt9H7korRj5
 afhjlKlk2b6GLwLjh43pmAQcEDrF7ChjZzp2j4TrxP/AFM7sN/mVexndedWhRP6o
 shRYAUbfNRL0zSnkV9PK
 =ZTw2
 -----END PGP SIGNATURE-----

Merge tag 'linux-kselftest-4.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "This update consists of important compile and run-time error fixes to
  timers/freq-step, kmod, and sysctl tests"

* tag 'linux-kselftest-4.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: timers: freq-step: fix compile error
  selftests: futex: fix run_tests target
  test_sysctl: fix sysctl.sh by making it executable
  test_kmod: fix kmod.sh by making it executable
2017-08-15 12:49:43 -07:00
Kees Cook f3e1821d9e selftests/seccomp: Test thread vs process killing
This verifies that SECCOMP_RET_KILL_PROCESS is higher priority than
SECCOMP_RET_KILL_THREAD. (This also moves a bunch of defines up earlier
in the file to use them earlier.)

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
2017-08-14 13:46:50 -07:00
Kees Cook fd76875ca2 seccomp: Rename SECCOMP_RET_KILL to SECCOMP_RET_KILL_THREAD
In preparation for adding SECCOMP_RET_KILL_PROCESS, rename SECCOMP_RET_KILL
to the more accurate SECCOMP_RET_KILL_THREAD.

The existing selftest values are intentionally left as SECCOMP_RET_KILL
just to be sure we're exercising the alias.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:48 -07:00
Tyler Hicks 59f5cf44a3 seccomp: Action to log before allowing
Add a new action, SECCOMP_RET_LOG, that logs a syscall before allowing
the syscall. At the implementation level, this action is identical to
the existing SECCOMP_RET_ALLOW action. However, it can be very useful when
initially developing a seccomp filter for an application. The developer
can set the default action to be SECCOMP_RET_LOG, maybe mark any
obviously needed syscalls with SECCOMP_RET_ALLOW, and then put the
application through its paces. A list of syscalls that triggered the
default action (SECCOMP_RET_LOG) can be easily gleaned from the logs and
that list can be used to build the syscall whitelist. Finally, the
developer can change the default action to the desired value.

This provides a more friendly experience than seeing the application get
killed, then updating the filter and rebuilding the app, seeing the
application get killed due to a different syscall, then updating the
filter and rebuilding the app, etc.

The functionality is similar to what's supported by the various LSMs.
SELinux has permissive mode, AppArmor has complain mode, SMACK has
bring-up mode, etc.

SECCOMP_RET_LOG is given a lower value than SECCOMP_RET_ALLOW as allow
while logging is slightly more restrictive than quietly allowing.

Unfortunately, the tests added for SECCOMP_RET_LOG are not capable of
inspecting the audit log to verify that the syscall was logged.

With this patch, the logic for deciding if an action will be logged is:

if action == RET_ALLOW:
  do not log
else if action == RET_KILL && RET_KILL in actions_logged:
  log
else if action == RET_LOG && RET_LOG in actions_logged:
  log
else if filter-requests-logging && action in actions_logged:
  log
else if audit_enabled && process-is-being-audited:
  log
else:
  do not log

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:47 -07:00
Tyler Hicks e66a399779 seccomp: Filter flag to log all actions except SECCOMP_RET_ALLOW
Add a new filter flag, SECCOMP_FILTER_FLAG_LOG, that enables logging for
all actions except for SECCOMP_RET_ALLOW for the given filter.

SECCOMP_RET_KILL actions are always logged, when "kill" is in the
actions_logged sysctl, and SECCOMP_RET_ALLOW actions are never logged,
regardless of this flag.

This flag can be used to create noisy filters that result in all
non-allowed actions to be logged. A process may have one noisy filter,
which is loaded with this flag, as well as a quiet filter that's not
loaded with this flag. This allows for the actions in a set of filters
to be selectively conveyed to the admin.

Since a system could have a large number of allocated seccomp_filter
structs, struct packing was taken in consideration. On 64 bit x86, the
new log member takes up one byte of an existing four byte hole in the
struct. On 32 bit x86, the new log member creates a new four byte hole
(unavoidable) and consumes one of those bytes.

Unfortunately, the tests added for SECCOMP_FILTER_FLAG_LOG are not
capable of inspecting the audit log to verify that the actions taken in
the filter were logged.

With this patch, the logic for deciding if an action will be logged is:

if action == RET_ALLOW:
  do not log
else if action == RET_KILL && RET_KILL in actions_logged:
  log
else if filter-requests-logging && action in actions_logged:
  log
else if audit_enabled && process-is-being-audited:
  log
else:
  do not log

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:46 -07:00
Tyler Hicks 2b7ea5b5b5 seccomp: Selftest for detection of filter flag support
Userspace needs to be able to reliably detect the support of a filter
flag. A good way of doing that is by attempting to enter filter mode,
with the flag bit(s) in question set, and a NULL pointer for the args
parameter of seccomp(2). EFAULT indicates that the flag is valid and
EINVAL indicates that the flag is invalid.

This patch adds a selftest that can be used to test this method of
detection in userspace.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:46 -07:00
Tyler Hicks d612b1fd80 seccomp: Operation for checking if an action is available
Userspace code that needs to check if the kernel supports a given action
may not be able to use the /proc/sys/kernel/seccomp/actions_avail
sysctl. The process may be running in a sandbox and, therefore,
sufficient filesystem access may not be available. This patch adds an
operation to the seccomp(2) syscall that allows userspace code to ask
the kernel if a given action is available.

If the action is supported by the kernel, 0 is returned. If the action
is not supported by the kernel, -1 is returned with errno set to
-EOPNOTSUPP. If this check is attempted on a kernel that doesn't support
this new operation, -1 is returned with errno set to -EINVAL meaning
that userspace code will have the ability to differentiate between the
two error cases.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Suggested-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:44 -07:00
Kees Cook f3f6e30669 selftests/seccomp: Refactor RET_ERRNO tests
This refactors the errno tests (since they all use the same pattern for
their filter) and adds a RET_DATA field ordering test.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
2017-08-14 13:46:42 -07:00
Kees Cook 967d7ba841 selftests/seccomp: Add simple seccomp overhead benchmark
This attempts to produce a comparison between native getpid() and a
RET_ALLOW-filtered getpid(), to measure the overhead cost of using
seccomp().

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 13:46:41 -07:00
Greg Kroah-Hartman f75f6ff2ea Merge 4.13-rc5 into driver-core-next
We want the fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-14 13:33:39 -07:00
Kees Cook a33b2d0359 selftests/seccomp: Add tests for basic ptrace actions
This adds tests for using only ptrace to perform syscall changes, just
to validate matching behavior between seccomp events and ptrace events.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-08-14 12:27:46 -07:00
Shuah Khan 3c1f619eea selftests: capabilities: convert error output to TAP13 ksft framework
Convert errx() and err() usage to appropriate TAP13 ksft API.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-14 11:31:15 -06:00
William Tu 047dbb27ff selftests: bpf: add check for ip XDP redirect
Kernel test robot reports error when running test_xdp_redirect.sh.
Check if ip tool supports xdpgeneric, if not, skip the test.

Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11 14:57:31 -07:00
Orson Zhai 0e64f1d7dd selftests: memfd: Align STACK_SIZE for ARM AArch64 system
The stack size should be 16 bytes aligned in arm64 system. The similar
patch has been merged already.

> <commit id: 1f78dda2cf5e4eeb00aee2a01c9515e2e704b4c0>
> selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned
>
>    There is a mandate of 16-byte aligned stack on AArch64 [1], so the
>    STACK_SIZE here should also be 16-byte aligned, otherwise we would
>    get an error when calling clone().
>
>    [1] http://lxr.free-electrons.com/source/arch/arm64/kernel/process.c#L265
>
>    Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
>    Acked-by: Arnd Bergmann <arnd@arndb.de>
>    Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

Signed-off-by: Orson Zhai <orson.zhai@linaro.org>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-11 10:09:14 -06:00
Shuah Khan 622b2fbe62 selftests: timers: freq-step: fix compile error
Fix compile error due to ksft_exit_skip() update to take var_args.

freq-step.c: In function ‘init_test’:
freq-step.c:234:3: error: too few arguments to function ‘ksft_exit_skip’
   ksft_exit_skip();
   ^~~~~~~~~~~~~~
In file included from freq-step.c:26:0:
../kselftest.h:167:19: note: declared here
 static inline int ksft_exit_skip(const char *msg, ...)
                   ^~~~~~~~~~~~~~
<builtin>: recipe for target 'freq-step' failed

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-11 09:28:37 -06:00
Luis R. Rodriguez c92316bf8e test_firmware: add batched firmware tests
The firmware API has a feature to enable batching requests for the same fil
e under one worker, so only one lookup is done. This only triggers if we so
happen to schedule two lookups for same file around the same time, or if
release_firmware() has not been called for a successful firmware call. This
can happen for instance if you happen to have multiple devices and one
device driver for certain drivers where the stars line up scheduling
wise.

This adds a new sync and async test trigger. Instead of adding a new
trigger for each new test type we make the tests a bit configurable so that
we could configure the tests in userspace and just kick a test through a
few basic triggers. With this, for instance the two types of sync requests:

  o request_firmware() and
  o request_firmware_direct()

can be modified with a knob. Likewise the two type of async requests:

   o request_firmware_nowait(uevent=true) and
   o request_firmware_nowait(uevent=false)

can be configured with another knob. The call request_firmware_into_buf()
has no users... yet.

The old tests are left in place as-is given they serve a few other purposes
which we are currently not interested in also testing yet. This will change
later as we will be able to just consolidate all tests under a few basic
triggers with just one general configuration setup.

We perform two types of tests, one for where the file is present and one
for where the file is not present. All test tests go tested and they now
pass for the following 3 kernel builds possible for the firmware API:

0. Most distro setup:
   CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n
   CONFIG_FW_LOADER_USER_HELPER=y
1. Android:
   CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
   CONFIG_FW_LOADER_USER_HELPER=y
2. Rare build:
   CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n
   CONFIG_FW_LOADER_USER_HELPER=n

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-10 13:58:41 -07:00
Luis R. Rodriguez 0d1f417eee test_firmware: add test case for SIGCHLD on sync fallback
It has been reported that SIGCHLD will trigger an immediate abort
on sync firmware requests which rely on the sysfs interface for a
trigger. This is unexpected behaviour, this reproduces this issue.

This test case currenty fails.

Reported-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-10 13:58:40 -07:00
Florian Westphal 33b01b7b4f selftests: add rtnetlink test script
add a simple script to exercise some rtnetlink call paths, so KASAN,
lockdep etc. can yell at developer before patches are sent upstream.

This can be extended to also cover bond, team, vrf and the like.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10 09:50:22 -07:00
Andy Lutomirski 23d98c2043 selftests/x86/fsgsbase: Test selectors 1, 2, and 3
Those are funny cases.  Make sure they work.

(Something is screwy with signal handling if a selector is 1, 2, or 3.
Anyone who wants to dive into that rabbit hole is welcome to do so.)

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Chang Seok <chang.seok.bae@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-10 17:15:13 +02:00
Daniel Borkmann 31e482bf7e bpf: add test cases for new BPF_J{LT, LE, SLT, SLE} instructions
Add test cases to the verifier selftest suite in order to verify that
i) direct packet access, and ii) dynamic map value access is working
with the changes related to the new instructions.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09 16:53:57 -07:00
David S. Miller 3118e6e19d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The UDP offload conflict is dealt with by simply taking what is
in net-next where we have removed all of the UFO handling code
entirely.

The TCP conflict was a case of local variables in a function
being removed from both net and net-next.

In netvsc we had an assignment right next to where a missing
set of u64 stats sync object inits were added.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09 16:28:45 -07:00
Luis R. Rodriguez 43c6437453 selftests: warn if failure is due to lack of executable bit
Executing selftests is fragile as if someone forgot to set a secript
as executable the test will fail, and you won't know for sure if the
failure was caused by the lack of proper permissions or something else.

Setting scripts as executable is required, this also enable folks to
execute selftests as independent units.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-09 14:41:20 -06:00
Shuah Khan c0bb2cf40e selftests: kselftest framework: add error counter
Some tests track errors in addition to test failures. Add ksft_error
counter, ksft_get_error_cnt(), and ksft_test_result_error() API to
get the counter value and print error message.

Update ksft_print_cnts(), and ksft_test_num() to include error counter.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-09 10:39:05 -06:00
Shuah Khan 7ba190be87 selftests: futex: fix run_tests target
make -C tools/testing/selftests/futex/ run_tests doesn't run the futex
tests.

Running the tests when `dirname $(OUTPUT)` == $(PWD) doesn't work when
the $(OUTPUT) is $(PWD) which is the case when the test is run using
make -C tools/testing/selftests/futex/ run_tests.

Fixes: a8ba798bc8 ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-09 10:16:24 -06:00
William Tu 996139e801 selftests: bpf: add a test for XDP redirect
Add test for xdp_redirect by creating two namespaces with two
veth peers, then forward packets in-between.

Signed-off-by: William Tu <u9012063@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 18:12:50 -07:00
Edward Cree 69c4e8ada6 selftests/bpf: variable offset negative tests
Variable ctx accesses and stack accesses aren't allowed, because we can't
 determine what type of value will be read.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree f999d64c34 selftests/bpf: add tests for subtraction & negative numbers
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree 1f9ab38f8a selftests/bpf: don't try to access past MAX_PACKET_OFF in test_verifier
A number of selftests fell foul of the changed MAX_PACKET_OFF handling.
For instance, "direct packet access: test2" was potentially reading four
 bytes from pkt + 0xffff, which could take it past the verifier's limit,
 causing the program to be rejected (checks against pkt_end didn't give
 us any reg->range).
Increase the shifts by one so that R2 is now mask 0x7fff instead of
 mask 0xffff.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree c2c3e11712 selftests/bpf: add test for bogus operations on pointers
Tests non-add/sub operations (AND, LSH) on pointers decaying them to
 unknown scalars.
Also tests that a pkt_ptr add which could potentially overflow is rejected
 (find_good_pkt_pointers ignores it and doesn't give us any reg->range).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree 715dddb5e6 selftests/bpf: add a test to test_align
New test adds 14 to the unknown value before adding to the packet pointer,
 meaning there's no 'fixed offset' field and instead we add into the
 var_off, yielding a '4n+2' value.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree 9fafa80513 selftests/bpf: rewrite test_align
Expectations have changed, as has the format of the logged state.
To make the tests easier to read, add a line-matching framework so that
 each match need only quote the register it cares about.  (Multiple
 matches may refer to the same line, but matches must be listed in
 order of increasing line.)

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Edward Cree f65b18493f selftests/bpf: change test_verifier expectations
Some of the verifier's error messages have changed, and some constructs
 that previously couldn't be verified are now accepted.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:51:35 -07:00
Luis R. Rodriguez 8b0949d407 test_sysctl: fix sysctl.sh by making it executable
We had just forogtten to do this. Without this the following test fails:

$ sudo make -C tools/testing/selftests/sysctl/ run_tests
make: Entering directory '/home/mcgrof/linux-next/tools/testing/selftests/sysctl'
/bin/sh: ./sysctl.sh: Permission denied
selftests:  sysctl.sh [FAIL]
/home/mcgrof/linux-next/tools/testing/selftests/sysctl
make: Leaving directory '/home/mcgrof/linux-next/tools/testing/selftests/sysctl'

Fixes: 64b671204a ("test_sysctl: add generic script to expand on tests")
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-07 15:13:36 -06:00
Luis R. Rodriguez 0a9c40cea7 test_kmod: fix kmod.sh by making it executable
We had just forgotten to do this. Without this if we run the
following we get a permission denied:

sudo make -C tools/testing/selftests/kmod/ run_tests
make: Entering directory '/home/mcgrof/linux-next/tools/testing/selftests/kmod'
/bin/sh: ./kmod.sh: Permission denied
selftests:  kmod.sh [FAIL]
/home/mcgrof/linux-next/tools/testing/selftests/kmod
make: Leaving directory '/home/mcgrof/linux-next/tools/testing/selftests/kmod

Fixes: 39258f448d71 ("kmod: add test driver to stress test the module loader")
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-07 15:13:11 -06:00
Thomas Richter f9ea3225dd bpf: fix selftest/bpf/test_pkt_md_access on s390x
Commit 18f3d6be6b ("selftests/bpf: Add test cases to test narrower ctx field loads")
introduced new eBPF test cases. One of them (test_pkt_md_access.c)
fails on s390x. The BPF verifier error message is:

[root@s8360046 bpf]# ./test_progs
test_pkt_access:PASS:ipv4 349 nsec
test_pkt_access:PASS:ipv6 212 nsec
[....]
libbpf: load bpf program failed: Permission denied
libbpf: -- BEGIN DUMP LOG ---
libbpf:
0: (71) r2 = *(u8 *)(r1 +0)
invalid bpf_context access off=0 size=1

libbpf: -- END LOG --
libbpf: failed to load program 'test1'
libbpf: failed to load object './test_pkt_md_access.o'
Summary: 29 PASSED, 1 FAILED
[root@s8360046 bpf]#

This is caused by a byte endianness issue. S390x is a big endian
architecture.  Pointer access to the lowest byte or halfword of a
four byte value need to add an offset.
On little endian architectures this offset is not needed.

Fix this and use the same approach as the originator used for other files
(for example test_verifier.c) in his original commit.

With this fix the test program test_progs succeeds on s390x:
[root@s8360046 bpf]# ./test_progs
test_pkt_access:PASS:ipv4 236 nsec
test_pkt_access:PASS:ipv6 217 nsec
test_xdp:PASS:ipv4 3624 nsec
test_xdp:PASS:ipv6 1722 nsec
test_l4lb:PASS:ipv4 926 nsec
test_l4lb:PASS:ipv6 1322 nsec
test_tcp_estats:PASS: 0 nsec
test_bpf_obj_id:PASS:get-fd-by-notexist-prog-id 0 nsec
test_bpf_obj_id:PASS:get-fd-by-notexist-map-id 0 nsec
test_bpf_obj_id:PASS:get-prog-info(fd) 0 nsec
test_bpf_obj_id:PASS:get-map-info(fd) 0 nsec
test_bpf_obj_id:PASS:get-prog-info(fd) 0 nsec
test_bpf_obj_id:PASS:get-map-info(fd) 0 nsec
test_bpf_obj_id:PASS:get-prog-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-prog-info(next_id->fd) 0 nsec
test_bpf_obj_id:PASS:get-prog-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-prog-info(next_id->fd) 0 nsec
test_bpf_obj_id:PASS:check total prog id found by get_next_id 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:check get-map-info(next_id->fd) 0 nsec
test_bpf_obj_id:PASS:get-map-fd(next_id) 0 nsec
test_bpf_obj_id:PASS:check get-map-info(next_id->fd) 0 nsec
test_bpf_obj_id:PASS:check total map id found by get_next_id 0 nsec
test_pkt_md_access:PASS: 277 nsec
Summary: 30 PASSED, 0 FAILED
[root@s8360046 bpf]#

Fixes: 18f3d6be6b ("selftests/bpf: Add test cases to test narrower ctx field loads")
Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07 10:06:27 -07:00
Daniel Borkmann 2c460621bb bpf: fix byte order test in test_verifier
We really must check with #if __BYTE_ORDER == XYZ instead of
just presence of #ifdef __LITTLE_ENDIAN. I noticed that when
actually running this on big endian machine, the latter test
resolves to true for user space, same for #ifdef __BIG_ENDIAN.

E.g., looking at endian.h from libc, both are also defined
there, so we really must test this against __BYTE_ORDER instead
for proper insns selection. For the kernel, such checks are
fine though e.g. see 13da9e200f ("Revert "endian: #define
__BYTE_ORDER"") and 415586c9e6 ("UAPI: fix endianness conditionals
in M32R's asm/stat.h") for some more context, but not for
user space. Lets also make sure to properly include endian.h.
After that, suite passes for me:

./test_verifier: ELF 64-bit MSB executable, [...]

Linux foo 4.13.0-rc3+ #4 SMP Fri Aug 4 06:59:30 EDT 2017 s390x s390x s390x GNU/Linux

Before fix: Summary: 505 PASSED, 11 FAILED
After  fix: Summary: 516 PASSED,  0 FAILED

Fixes: 18f3d6be6b ("selftests/bpf: Add test cases to test narrower ctx field loads")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong <yhs@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04 16:09:06 -07:00
Willem de Bruijn 07b65c5b31 test: add msg_zerocopy test
Introduce regression test for msg_zerocopy feature. Send traffic from
one process to another with and without zerocopy.

Evaluate tcp, udp, raw and packet sockets, including variants
- udp: corking and corking with mixed copy/zerocopy calls
- raw: with and without hdrincl
- packet: at both raw and dgram level

Test on both ipv4 and ipv6, optionally with ethtool changes to
disable scatter-gather, tx checksum or tso offload. All of these
can affect zerocopy behavior.

The regression test can be run on a single machine if over a veth
pair. Then skb_orphan_frags_rx must be modified to be identical to
skb_orphan_frags to allow forwarding zerocopy locally.

The msg_zerocopy.sh script will setup the veth pair in network
namespaces and run all tests.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03 21:37:30 -07:00
Shuah Khan 7d005195e9 selftests: capabilities: convert the test to use TAP13 ksft framework
Convert the test to use TAP13 ksft framework for test output. Converting
error paths using err() and errx() will be done in another patch to make
it easier for review and change management.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 15:30:29 -06:00
Shuah Khan 52888fe43e selftests: capabilities: fix to run Non-root +ia, sgidroot => i test
do_tests() runs sgidnonroot test without fork_wait(). As a result the
last test "Non-root +ia, sgidroot => i test" is left out. Fix it.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 15:29:39 -06:00
Grygorii Strashko 3e18b64174 selftests: ptp: include default header install path
Add the usr/include subdirectory of the top-level tree to the include
path to fix build when cross compiling for ARM.
testptp.c: In function 'main':
testptp.c:289:15: error: 'struct ptp_clock_caps' has no member named 'cross_timestamping'
           caps.cross_timestamping);

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 15:26:46 -06:00
Shuah Khan 5ec8d6ce61 selftests: sigaltstack: convert to use TAP13 ksft framework
Convert to use TAP13 ksft framework to output results.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 13:55:48 -06:00
Shuah Khan 5b1b9c5851 selftests: splice: add .gitignore for generated files
Add .gitignore for generated files.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 13:50:48 -06:00
Shuah Khan 2fe05e1139 selftests: pstore: add .gitignore for generated files
Add .gitignore for generated files.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-08-02 13:50:29 -06:00
Logan Gunthorpe 0eb4634536 ntb: ntb_test: ensure the link is up before trying to configure the mws
After the link tests, there is a race on one side of the test for
the link coming up. It's possible, in some cases, for the test script
to write to the 'peer_trans' files before the link has come up.

To fix this, we simply use the link event file to ensure both sides
see the link as up before continuning.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Fixes: a9c59ef774 ("ntb_test: Add a selftest script for the NTB subsystem")
2017-08-01 15:18:59 -04:00
David S. Miller 29fda25a2d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two minor conflicts in virtio_net driver (bug fix overlapping addition
of a helper) and MAINTAINERS (new driver edit overlapping revamp of
PHY entry).

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 10:07:50 -07:00
John Fastabend 81f6bf8127 bpf: testing: fix devmap tests
Apparently through one of my revisions of the initial patches
series I lost the devmap test. We can add more testing later but
for now lets fix the simple one we have.

Fixes: 546ac1ffb7 "bpf: add devmap, a map for storing net device references"
Reported-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-29 14:13:20 -07:00
Shuah Khan f471e1fd82 selftests: sync: convert to use TAP13 ksft framework
Convert test to use TAP13 ksft framework. Output after conversion:

TAP version 13
# [RUN]	Testing sync framework
ok 1 [RUN]	test_alloc_timeline
ok 2 [RUN]	test_alloc_fence
ok 3 [RUN]	test_alloc_fence_negative
ok 4 [RUN]	test_fence_one_timeline_wait
ok 5 [RUN]	test_fence_one_timeline_merge
ok 6 [RUN]	test_fence_merge_same_fence
ok 7 [RUN]	test_fence_multi_timeline_wait
ok 8 [RUN]	test_stress_two_threads_shared_timeline
ok 9 [RUN]	test_consumer_stress_multi_producer_single_consumer
ok 10 [RUN]	test_merge_stress_random_merge
Pass 10 Fail 0 Xfail 0 Xpass 0 Skip 0
1..10

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2017-07-28 13:20:29 -06:00
Shuah Khan 1d3ee8bef9 selftests: kselftest framework: add API to return pass/fail/* counts
Some tests print final pass/fail message based on fail count. Add
ksft_get_*_cnt() API to kselftest framework to return counts.

Update ksft_print_cnts() to print the test results summary message with
individual pass, fail, ... counters.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2017-07-28 13:20:19 -06:00
Shuah Khan f6c44bbb79 selftests: sync: differentiate between sync unsupported and access errors
Sync test doesn't differentiate between sync unsupported and test run
by non-root user and treats both as unsupported cases.

Fix it to add handling for these two different scenarios.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2017-07-28 13:19:55 -06:00
Jakub Kicinski d777b2ddbe bpf: don't zero out the info struct in bpf_obj_get_info_by_fd()
The buffer passed to bpf_obj_get_info_by_fd() should be initialized
to zeros.  Kernel will enforce that to guarantee we can safely extend
info structures in the future.

Making the bpf_obj_get_info_by_fd() call in libbpf perform the zeroing
is problematic, however, since some members of the info structures
may need to be initialized by the callers (for instance pointers
to buffers to which kernel is to dump translated and jited images).

Remove the zeroing and fix up the in-tree callers before any kernel
has been released with this code.

As Daniel points out this seems to be the intended operation anyway,
since commit 95b9afd398 ("bpf: Test for bpf ID") is itself setting
the buffer pointers before calling bpf_obj_get_info_by_fd().

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-26 17:02:52 -07:00
Masami Hiramatsu 97e4936851 selftests: ftrace: Check given string is not zero-length
Use [ ! -z "$VAR" ] instead of [ "$VAR" ] to check
whether the given string variable is not zero-length
since it obviously shows what it means.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 15:41:43 -06:00
Masami Hiramatsu 97bece60ef selftests: ftrace: Output only to console with "--logdir -"
Output logs only to console if "-" is given to --logdir
option. In this case, ftracetest doesn't record any log
on the disk, and all logs immediately shown (including
all command logs.) Since there is no "tee" in the middle
of command and console, it outputs the log really soon.

This option is useful only when the console is logged.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 15:41:36 -06:00
Masami Hiramatsu dab24fb1f2 selftests: ftrace: Add more verbosity for immediate log
Add 3-level verbosity for showing traced command log
on console immediately. Since some test cases can cause
kernel pacic if there is a probrem (like regression etc.),
we can not know which command caused the problem without
traced command log. This verbosity (-vvv) solves that
because it shows the log on console immediately. User
can get continuous command/error log.

Note that this is a kind of kernel debug mode, if you
don't see any kernel related issue, you don't need this
verbosity.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 15:41:30 -06:00
Masami Hiramatsu 9aa9413912 selftests: ftrace: Add --fail-unsupported option
Add --fail-unsupported option to fail the test result if
ftracetest gets UNSUPPORTED result. UNSUPPORTED usually
happens when the kernel is old (e.g. stable tree) or some
kernel feature is disabled.

However, if newer kernel has any bug or regression, it
can make test results in UNSUPPORTED too. This option
can detect such kernel regression.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 15:41:22 -06:00
Masami Hiramatsu 9b682cd4af selftests: ftrace: Do not failure if there is unsupported tests
Do not return failure exit code (1) for unsupported testcases,
since it is expected for stable kernels.

Previously, ftracetest is expected to run only on current
release for avoiding regressions. However, nowadays we run
it on stable kernels. This means some test cases must return
unsupported result. In such case, we should NOT exit
ftracetest with error status for unsupported results so that
kselftest (upper tests wrapper) shows it passed correctly.

Note that we continue to treat unresolved results as failure,
if test writers would like to notice user that the test result
should be reviewed, they can use exit_unresolved.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <srostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 15:41:13 -06:00
Shuah Khan bc3e2ad395 selftests: breakpoint_test: Add missing line breaks
Add missing line breaks between the last two tests.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-26 10:32:31 -06:00
Paul E. McKenney c234ee4b82 rcutorture: Use nr_cpus rather than maxcpus to limit test size
The maxcpus= kernel boot parameter limits the number of CPUs brought
online at boot time, but it does nothing to prevent additional CPUs
from being brought up later.  Placing a hard cap on the total number
of CPUs is instead the job of the nr_cpus= boot parameter.  This commit
therefore switches the configfrag_boot_cpus() shell function from maxcpus=
to nr_cpus=.  This commit also adds a nr_cpus=43 kernel parameter to RCU's
TREE01 test scenario, but retains the maxcpus=8 kernel parameter in order
to test the ability of RCU expedited grace periods to handle new CPUs
coming online for the first time during grace-period initialization.
Finally, this commit makes the torture scheduling allow maxcpus= to
override other means of specifying the number of CPUs to allow for.
This last works because the torture kernel modules size their workloads
based on the number of CPUs present at the start of the test, not the
ultimate number of CPUs.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-07-24 16:04:16 -07:00
Paul E. McKenney b3c983142d rcutorture: Place event-traced strings into trace buffer
Strings used in event tracing need to be specially handled, for example,
being copied to the trace buffer instead of being pointed to by the trace
buffer.  Although the TPS() macro can be used to "launder" pointed-to
strings, this might not be all that effective within a loadable module.
This commit therefore copies rcutorture's strings to the trace buffer.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
2017-07-24 16:04:12 -07:00
Paul E. McKenney 85ef2bd2a5 rcutorture: Don't wait for kernel when all builds fail
Currently, rcutorture groups runs in batches, building each scenario in
a given batch, then invoking qemu to run all the kernels in the batch.
Of course, if a given scenario's kernel fails to build, there is no qemu
run for that scenario.  And if all of the kernels in a given batch fail
to build, there are no runs, and rcutorture immediately starts on the
next batch.

But not if --jitter has been specified, which it is by default.  In this
case, the jitter scripts are started unconditionally, and rcutorture
waits for them to complete, even though there are no kernels to run.

This commit therefore checks for this situation, and refuses to start
jitter unless at least one of the kernels in the batch built successfully.
This saves substantial time when all scenarios' kernels fail to build,
particularly if a long --duration was specified.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-07-24 16:04:11 -07:00
Paul E. McKenney d62c9833d6 torture: Add --kconfig argument to kvm.sh
Currently, testing a variant of an existing scenario requires editing
that scenario's file or creating a new scenario file.  This is messy
and error prone with respect to changes to scenarios.

This commit therefore adds a --kconfig argument to kvm.sh, so that
'--kconfig "CONFIG_RCU_TRACE=y CONFIG_RCU_EQS_DEBUG=n" will override those
two Kconfig options.  In addition, there is now clear precedence:
the config fragment overrides CFcommon, and the --kconfig argument
overrides both.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-07-24 16:04:10 -07:00
Paul E. McKenney c7e224eec4 rcutorture: Select CONFIG_PROVE_LOCKING for Tiny SRCU scenario
This commit selects CONFIG_PROVE_LOCKING for the SRCU-u scenario
to get better test coverage.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-07-24 16:04:09 -07:00
Paul E. McKenney 02a5661105 rcutorture: Remove obsolete SRCU-C.boot
Classic SRCU is no more, so this commit removes the corresponding
rcutorture boot-parameters file.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-07-24 16:03:22 -07:00
Edward Cree 545722cb0f selftests/bpf: subtraction bounds test
There is a bug in the verifier's handling of BPF_SUB: [a,b] - [c,d] yields
 was [a-c, b-d] rather than the correct [a-d, b-c].  So here is a test
 which, with the bogus handling, will produce ranges of [0,0] and thus
 allowed accesses; whereas the correct handling will give a range of
 [-255, 255] (and hence the right-shift will give a range of [0, 255]) and
 the accesses will be rejected.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-24 14:02:55 -07:00
Daniel Díaz 5cc3027f00 selftests: Fix installation for splice test
Simplify the Makefile rules so that the test is
automatically installed (and cleaned) by leveraging
the TEST_GEN_PROGS_EXTENDED definition.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:44:39 -06:00
Eugeniu Rosca a3d6d79f11 selftests: watchdog: get boot reason via WDIOC_GETBOOTSTATUS
Some watchdog drivers implement WDIOF_CARDRESET feature. As example,
see commit b6ef36d2c1 ("watchdog: qcom: Report reboot reason").
This option allows reporting to userspace the cause of the last boot
(POR/watchdog reset), being helpful in e.g. automated test-cases.

Add support for WDIOC_GETBOOTSTATUS in the test code, to be able to:
- check if watchdog drivers properly implement WDIOF_CARDRESET.
- check the last boot status, if WDIOF_CARDRESET is implemented.

Make the `-b, --bootstatus` option one-shot. That means, skip the
keepalive mechanism if `-b` is provided on the command line, as we
are only interested in the boot status information.

Tested on Rcar-H3 Salvator-X board:

********************** Cold boot finished
salvator-x:/home/root# ./watchdog-test -h
Usage: ./watchdog-test [options]
 -b, --bootstatus    Get last boot status (Watchdog/POR)
 -d, --disable       Turn off the watchdog timer
 -e, --enable        Turn on the watchdog timer
 -h, --help          Print the help message
 -p, --pingrate=P    Set ping rate to P seconds (default 1)
 -t, --timeout=T     Set timeout to T seconds

Parameters are parsed left-to-right in real-time.
Example: ./watchdog-test -d -t 10 -p 5 -e
salvator-x:/home/root#
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Power-On-Reset.
salvator-x:/home/root#
salvator-x:/home/root# ./watchdog-test -d -t 1 -p 2 -e
Watchdog card disabled.
Watchdog timeout set to 1 seconds.
Watchdog ping rate set to 2 seconds.
Watchdog card enabled.
Watchdog Ticking Away!
********************** Reboot due to watchdog trigger finished
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Watchdog.
salvator-x:/home/root#
salvator-x:/home/root# reboot
********************** Reboot due to user action finished
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Power-On-Reset.
salvator-x:/home/root#

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:37:07 -06:00
Eugeniu Rosca f8f92c072e selftests: watchdog: avoid keepalive flood
Calling `watchdog-test [options] -p 0` results in flooding the kernel
with WDIOC_KEEPALIVE. Fix this by enforcing 1 second as minimal/default
keepalive/ping rate.

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:37:01 -06:00
Eugeniu Rosca 42f34c4e24 selftests: watchdog: point out ioctl() failures
Report the failure of WDIOC_SETOPTIONS/WDIOC_SETTIMEOUT ioctls.

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:36:55 -06:00
Eugeniu Rosca 7a5e10d439 selftests: watchdog: prefer strtoul() over atoi()
commit f15d7114bb ("Documentation/watchdog: add timeout and ping rate
control to watchdog-test.c") used both atoi() and strtoul() for string
to integer conversion. As usage of atoi() is discouraged in newer code,
replace it with strtoul() for consistency.

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:36:47 -06:00
Eugeniu Rosca 749fb263b3 selftests: watchdog: use getopt_long()
Switch from manual argv[] parsing to getopt_long() argument processing.
This creates more readable code and allows easier feature addition.
This also fixes some segmentation faults introduced by
commit 1dbdcc8109 ("selftests: watchdog: accept multiple params on
command line"), when options -t or -p are not given the required value:

./watchdog-test -p 1 -t
./watchdog-test -t 1 -p

No changes are intended in the way watchdog-test interacts with the
kernel. The only noticible changes, tightly related to the addition
of getopt (and done for easier maintenance),  are:
- help message has been reworked and migrated to a dedicated function.
- all short/long options and the help message are sorted alphabetically.
- all case statements inside the getopt loop are sorted alphabetically.

Fixes: 1dbdcc8109 ("selftests: watchdog: accept multiple params on command line")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:36:29 -06:00
Eugeniu Rosca 0c528da877 selftests: watchdog: fix mixed whitespace
Convert spaces to tabs for checkpatch compliance. Quick way to verify
this is by running `git show -w <commit-id>`, which returns an empty
commit body. No functional change intended.

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:36:06 -06:00
Naresh Kamboju 9f5eb964c5 selftests/nsfs: create kconfig fragments
Create a config fragment for nsfs to enable additional config options.
The config fragments can be used with the help of
scripts/kconfig/merge_config.sh.

Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Acked-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-07-24 12:35:14 -06:00
David S. Miller 7a68ada6ec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
Linus Torvalds 96080f6977 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) BPF verifier signed/unsigned value tracking fix, from Daniel
    Borkmann, Edward Cree, and Josef Bacik.

 2) Fix memory allocation length when setting up calls to
    ->ndo_set_mac_address, from Cong Wang.

 3) Add a new cxgb4 device ID, from Ganesh Goudar.

 4) Fix FIB refcount handling, we have to set it's initial value before
    the configure callback (which can bump it). From David Ahern.

 5) Fix double-free in qcom/emac driver, from Timur Tabi.

 6) A bunch of gcc-7 string format overflow warning fixes from Arnd
    Bergmann.

 7) Fix link level headroom tests in ip_do_fragment(), from Vasily
    Averin.

 8) Fix chunk walking in SCTP when iterating over error and parameter
    headers. From Alexander Potapenko.

 9) TCP BBR congestion control fixes from Neal Cardwell.

10) Fix SKB fragment handling in bcmgenet driver, from Doug Berger.

11) BPF_CGROUP_RUN_PROG_SOCK_OPS needs to check for null __sk, from Cong
    Wang.

12) xmit_recursion in ppp driver needs to be per-device not per-cpu,
    from Gao Feng.

13) Cannot release skb->dst in UDP if IP options processing needs it.
    From Paolo Abeni.

14) Some netdev ioctl ifr_name[] NULL termination fixes. From Alexander
    Levin and myself.

15) Revert some rtnetlink notification changes that are causing
    regressions, from David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (83 commits)
  net: bonding: Fix transmit load balancing in balance-alb mode
  rds: Make sure updates to cp_send_gen can be observed
  net: ethernet: ti: cpsw: Push the request_irq function to the end of probe
  ipv4: initialize fib_trie prior to register_netdev_notifier call.
  rtnetlink: allocate more memory for dev_set_mac_address()
  net: dsa: b53: Add missing ARL entries for BCM53125
  bpf: more tests for mixed signed and unsigned bounds checks
  bpf: add test for mixed signed and unsigned bounds checks
  bpf: fix up test cases with mixed signed/unsigned bounds
  bpf: allow to specify log level and reduce it for test_verifier
  bpf: fix mixed signed/unsigned derived min/max value bounds
  ipv6: avoid overflow of offset in ip6_find_1stfragopt
  net: tehuti: don't process data if it has not been copied from userspace
  Revert "rtnetlink: Do not generate notifications for CHANGEADDR event"
  net: dsa: mv88e6xxx: Enable CMODE config support for 6390X
  dt-binding: ptp: Add SoC compatibility strings for dte ptp clock
  NET: dwmac: Make dwmac reset unconditional
  net: Zero terminate ifr_name in dev_ifname().
  wireless: wext: terminate ifr name coming from userspace
  netfilter: fix netfilter_net_init() return
  ...
2017-07-20 16:33:39 -07:00
Daniel Borkmann 8641250251 bpf: more tests for mixed signed and unsigned bounds checks
Add a couple of more test cases to BPF selftests that are related
to mixed signed and unsigned checks.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20 15:20:27 -07:00
Edward Cree b712296a41 bpf: add test for mixed signed and unsigned bounds checks
These failed due to a bug in verifier bounds handling.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20 15:20:27 -07:00
Daniel Borkmann a150213286 bpf: fix up test cases with mixed signed/unsigned bounds
Fix the few existing test cases that used mixed signed/unsigned
bounds and switch them only to one flavor. Reason why we need this
is that proper boundaries cannot be derived from mixed tests.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20 15:20:27 -07:00
Daniel Borkmann d655490417 bpf: allow to specify log level and reduce it for test_verifier
For the test_verifier case, it's quite hard to parse log level 2 to
figure out what's causing an issue when used to log level 1. We do
want to use bpf_verify_program() in order to simulate some of the
tests with strict alignment. So just add an argument to pass the level
and put it to 1 for test_verifier.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-20 15:20:27 -07:00