- Linux-kselftest-mirror - lists.linaro.org

[PATCH] Revert "tpm: selftest: cleanup after unseal with wrong auth/policy test"

by Jarkko Sakkinen

The reverted commit illegitly uses tpm2-tools. External dependencies are absolutely forbidden from these tests. There is also the problem that clearing is not necessarily wanted behavior if the test/target computer is not used only solely for testing. Fixes: a9920d3bad40 ("tpm: selftest: cleanup after unseal with wrong auth/policy test") Cc: Tadeusz Struk <tadeusz.struk(a)intel.com> Cc: stable(a)vger.kernel.org Cc: linux-integrity(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> --- tools/testing/selftests/tpm2/test_smoke.sh | 5 ----- 1 file changed, 5 deletions(-) diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh index 663062701d5a..79f8e9da5d21 100755 --- a/tools/testing/selftests/tpm2/test_smoke.sh +++ b/tools/testing/selftests/tpm2/test_smoke.sh @@ -8,8 +8,3 @@ ksft_skip=4 python -m unittest -v tpm2_tests.SmokeTest python -m unittest -v tpm2_tests.AsyncTest - -CLEAR_CMD=$(which tpm2_clear) -if [ -n $CLEAR_CMD ]; then - tpm2_clear -T device -fi -- 2.25.1

5 years

1
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[net-next,v1,0/5] Strict mode for VRF

by Andrea Mayer

This patch set adds the new "strict mode" functionality to the Virtual Routing and Forwarding infrastructure (VRF). Hereafter we discuss the requirements and the main features of the "strict mode" for VRF. On VRF creation, it is necessary to specify the associated routing table used during the lookup operations. Currently, there is no mechanism that avoids creating multiple VRFs sharing the same routing table. In other words, it is not possible to force a one-to-one relationship between a specific VRF and the table associated with it. The "strict mode" imposes that each VRF can be associated to a routing table only if such routing table is not already in use by any other VRF. In particular, the strict mode ensures that: 1) given a specific routing table, the VRF (if exists) is uniquely identified; 2) given a specific VRF, the related table is not shared with any other VRF. Constraints (1) and (2) force a one-to-one relationship between each VRF and the corresponding routing table. The strict mode feature is designed to be network-namespace aware and it can be directly enabled/disabled acting on the "strict_mode" parameter. Read and write operations are carried out through the classic sysctl command on net.vrf.strict_mode path, i.e: sysctl -w net.vrf.strict_mode=1. Only two distinct values {0,1} are accepted by the strict_mode parameter: - with strict_mode=0, multiple VRFs can be associated with the same table. This is the (legacy) default kernel behavior, the same that we experience when the strict mode patch set is not applied; - with strict_mode=1, the one-to-one relationship between the VRFs and the associated tables is guaranteed. In this configuration, the creation of a VRF which refers to a routing table already associated with another VRF fails and the error is returned to the user. The kernel keeps track of the associations between a VRF and the routing table during the VRF setup, in the "management" plane. Therefore, the strict mode does not impact the performance or the intrinsic functionality of the data plane in any way. When the strict mode is active it is always possible to disable the strict mode, while the reverse operation is not always allowed. Setting the strict_mode parameter to 0 is equivalent to removing the one-to-one constraint between any single VRF and its associated routing table. Conversely, if the strict mode is disabled and there are multiple VRFs that refer to the same routing table, then it is prohibited to set the strict_mode parameter to 1. In this configuration, any attempt to perform the operation will lead to an error and it will be reported to the user. To enable strict mode once again (by setting the strict_mode parameter to 1), you must first remove all the VRFs that share common tables. There are several use cases which can take advantage from the introduction of the strict mode feature. In particular, the strict mode allows us to: i) guarantee the proper functioning of some applications which deal with routing protocols; ii) perform some tunneling decap operations which require to use specific routing tables for segregating and forwarding the traffic. Considering (i), the creation of different VRFs that point to the same table leads to the situation where two different routing entities believe they have exclusive access to the same table. This leads to the situation where different routing daemons can conflict for gaining routes control due to overlapping tables. By enabling strict mode it is possible to prevent this situation which often occurs due to incorrect configurations done by the users. The ability to enable/disable the strict mode functionality does not depend on the tool used for configuring the networking. In essence, the strict mode patch solves, at the kernel level, what some other patches [1] had tried to solve at the userspace level (using only iproute2) with all the related problems. Considering (ii), the introduction of the strict mode functionality allows us implementing the SRv6 End.DT4 behavior. Such behavior terminates a SR tunnel and it forwards the IPv4 traffic according to the routes present in the routing table supplied during the configuration. The SRv6 End.DT4 can be realized exploiting the routing capabilities made available by the VRF infrastructure. This behavior could leverage a specific VRF for forcing the traffic to be forwarded in accordance with the routes available in the VRF table. Anyway, in order to make the End.DT4 properly work, it must be guaranteed that the table used for the route lookup operations is bound to one and only one VRF. In this way, it is possible to use the table for uniquely retrieving the associated VRF and for routing packets. I would like to thank David Ahern for his constant and valuable support during the design and development phases of this patch set. Comments, suggestions and improvements are very welcome! Thanks, Andrea Mayer v1 l3mdev: add infrastructure for table to VRF mapping - define l3mdev_lock as static, thanks to Jakub Kicinski; - move lookup_by_table_id_t from l3mdev.c to l3mdev.h and update the l3mdev_dev_table_lookup_{un}register functions accordingly, thanks to David Ahern. vrf: track associations between VRF devices and tables - change shared_tables type from 'int' to 'u32', thanks to Stephen Hemminger and David Ahern; - update comments for share_tables. vrf: add sysctl parameter for strict mode - change type 'void __user *buffer' to 'void *buffer' in argument 3 of vrf_shared_table_handler function, thanks to Jakub Kicinski. [1] https://lore.kernel.org/netdev/20200307205916.15646-1-sharpd@cumulusnetwork… Andrea Mayer (5): l3mdev: add infrastructure for table to VRF mapping vrf: track associations between VRF devices and tables vrf: add sysctl parameter for strict mode vrf: add l3mdev registration for table to VRF device lookup selftests: add selftest for the VRF strict mode drivers/net/vrf.c | 450 +++++++++++++++++- include/net/l3mdev.h | 39 ++ net/l3mdev/l3mdev.c | 93 ++++ .../selftests/net/vrf_strict_mode_test.sh | 390 +++++++++++++++ 4 files changed, 963 insertions(+), 9 deletions(-) create mode 100755 tools/testing/selftests/net/vrf_strict_mode_test.sh -- 2.20.1

5 years

3
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[GIT PULL] Kselftest update for Linux 5.8-rc2

by Shuah Khan

Hi Linus, Please pull the following Kselftest update for Linux 5.8-rc2. This Kselftest update for Linux 5.8-rc2 consists of: - ftrace "requires:" list for simplifying and unifying requirement checks for each test case, adding "requires:" line instead of checking required ftrace interfaces in each test case. - a minor spelling correction patch thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit b3a9e3b9622ae10064826dccb4f7a52bd88c7407: Linux 5.8-rc1 (2020-06-14 12:45:04 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-5.8-rc2 for you to fetch changes up to 1b8eec510ba641418573eacc98a7e9c07726af30: selftests/ftrace: Support ":README" suffix for requires (2020-06-16 10:42:47 -0600) ---------------------------------------------------------------- linux-kselftest-5.8-rc2 This Kselftest update for Linux 5.8-rc2 consists of: - ftrace "requires:" list for simplifying and unifying requirement checks for each test case, adding "requires:" line instead of checking required ftrace interfaces in each test case. - a minor spelling correction patch ---------------------------------------------------------------- Flavio Suligoi (1): tools: testing: ftrace: trigger: fix spelling mistake Masami Hiramatsu (7): selftests/ftrace: Allow ":" in description selftests/ftrace: Return unsupported for the unconfigured features selftests/ftrace: Add "requires:" list support selftests/ftrace: Convert required interface checks into requires list selftests/ftrace: Convert check_filter_file() with requires list selftests/ftrace: Support ":tracer" suffix for requires selftests/ftrace: Support ":README" suffix for requires tools/testing/selftests/ftrace/ftracetest | 11 ++++++-- .../selftests/ftrace/test.d/00basic/snapshot.tc | 3 +-- .../selftests/ftrace/test.d/00basic/trace_pipe.tc | 3 +-- .../ftrace/test.d/direct/kprobe-direct.tc | 6 +---- .../ftrace/test.d/dynevent/add_remove_kprobe.tc | 6 +---- .../ftrace/test.d/dynevent/add_remove_synth.tc | 5 +--- .../ftrace/test.d/dynevent/clear_select_events.tc | 11 +------- .../ftrace/test.d/dynevent/generic_clear_event.tc | 8 +----- .../selftests/ftrace/test.d/event/event-enable.tc | 6 +---- .../selftests/ftrace/test.d/event/event-no-pid.tc | 11 +------- .../selftests/ftrace/test.d/event/event-pid.tc | 11 +------- .../ftrace/test.d/event/subsystem-enable.tc | 6 +---- .../ftrace/test.d/event/toplevel-enable.tc | 6 +---- .../ftrace/test.d/ftrace/fgraph-filter-stack.tc | 14 +--------- .../ftrace/test.d/ftrace/fgraph-filter.tc | 8 +----- .../ftrace/test.d/ftrace/func-filter-glob.tc | 8 +----- .../test.d/ftrace/func-filter-notrace-pid.tc | 13 +-------- .../ftrace/test.d/ftrace/func-filter-pid.tc | 13 +-------- .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 3 +-- .../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 6 +---- .../ftrace/test.d/ftrace/func_event_triggers.tc | 7 +++-- .../ftrace/test.d/ftrace/func_mod_trace.tc | 3 +-- .../ftrace/test.d/ftrace/func_profile_stat.tc | 3 +-- .../ftrace/test.d/ftrace/func_profiler.tc | 12 +-------- .../ftrace/test.d/ftrace/func_set_ftrace_file.tc | 6 ++--- .../ftrace/test.d/ftrace/func_stack_tracer.tc | 8 +----- .../test.d/ftrace/func_traceonoff_triggers.tc | 6 ++--- .../ftrace/test.d/ftrace/tracing-error-log.tc | 12 +++------ tools/testing/selftests/ftrace/test.d/functions | 28 ++++++++++++++----- .../ftrace/test.d/instances/instance-event.tc | 6 +---- .../selftests/ftrace/test.d/instances/instance.tc | 6 +---- .../ftrace/test.d/kprobe/add_and_remove.tc | 3 +-- .../selftests/ftrace/test.d/kprobe/busy_check.tc | 3 +-- .../selftests/ftrace/test.d/kprobe/kprobe_args.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_args_comm.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_args_string.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 5 +--- .../ftrace/test.d/kprobe/kprobe_args_type.tc | 5 +--- .../ftrace/test.d/kprobe/kprobe_args_user.tc | 4 +-- .../ftrace/test.d/kprobe/kprobe_eventname.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_ftrace.tc | 6 +---- .../ftrace/test.d/kprobe/kprobe_module.tc | 3 +-- .../ftrace/test.d/kprobe/kprobe_multiprobe.tc | 5 +--- .../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 5 +--- .../ftrace/test.d/kprobe/kretprobe_args.tc | 3 +-- .../ftrace/test.d/kprobe/kretprobe_maxactive.tc | 4 +-- .../ftrace/test.d/kprobe/multiple_kprobes.tc | 3 +-- .../selftests/ftrace/test.d/kprobe/probepoint.tc | 3 +-- .../selftests/ftrace/test.d/kprobe/profile.tc | 3 +-- .../ftrace/test.d/kprobe/uprobe_syntax_errors.tc | 5 +--- .../ftrace/test.d/preemptirq/irqsoff_tracer.tc | 4 +-- tools/testing/selftests/ftrace/test.d/template | 4 +++ .../selftests/ftrace/test.d/tracer/wakeup.tc | 6 +---- .../selftests/ftrace/test.d/tracer/wakeup_rt.tc | 6 +---- .../inter-event/trigger-action-hist-xfail.tc | 13 +-------- .../inter-event/trigger-field-variable-support.tc | 16 +---------- .../trigger-inter-event-combined-hist.tc | 16 +---------- .../inter-event/trigger-multi-actions-accept.tc | 16 +---------- .../inter-event/trigger-onchange-action-hist.tc | 8 +----- .../inter-event/trigger-onmatch-action-hist.tc | 16 +---------- .../trigger-onmatch-onmax-action-hist.tc | 16 +---------- .../inter-event/trigger-onmax-action-hist.tc | 16 +---------- .../inter-event/trigger-snapshot-action-hist.tc | 20 +------------- .../trigger-synthetic-event-createremove.tc | 11 +------- .../inter-event/trigger-synthetic-event-syntax.tc | 11 +------- .../inter-event/trigger-trace-action-hist.tc | 18 +------------ .../ftrace/test.d/trigger/trigger-eventonoff.tc | 11 +------- .../ftrace/test.d/trigger/trigger-filter.tc | 11 +------- .../ftrace/test.d/trigger/trigger-hist-mod.tc | 16 +---------- .../test.d/trigger/trigger-hist-syntax-errors.tc | 18 +------------ .../ftrace/test.d/trigger/trigger-hist.tc | 18 ++----------- .../ftrace/test.d/trigger/trigger-multihist.tc | 16 +---------- .../ftrace/test.d/trigger/trigger-snapshot.tc | 16 +---------- .../ftrace/test.d/trigger/trigger-stacktrace.tc | 13 ++------- .../test.d/trigger/trigger-trace-marker-hist.tc | 23 ++-------------- .../trigger/trigger-trace-marker-snapshot.tc | 23 ++-------------- .../trigger-trace-marker-synthetic-kernel.tc | 31 +--------------------- .../trigger/trigger-trace-marker-synthetic.tc | 26 +----------------- .../ftrace/test.d/trigger/trigger-traceonoff.tc | 11 +------- -- 80 files changed, 123 insertions(+), 637 deletions(-) --------------------------------------------------------------

5 years

2
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[GIT PULL] Kunit update for Linux 5.8-rc2

by Shuah Khan

Hi Linus, Please pull the Kunit update for Linux 5.8-rc12. This Kunit update for Linux 5.8-rc2 consists of: - Adds a generic kunit_resource API extending it to support resources that are passed in to kunit in addition kunit allocated resources. In addition, KUnit resources are now refcounted to avoid passed in resources being released while in use by kunit. - Add support for named resources. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit b3a9e3b9622ae10064826dccb4f7a52bd88c7407: Linux 5.8-rc1 (2020-06-14 12:45:04 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-5.8-rc2 for you to fetch changes up to 7bf200b3a4ac10b1b0376c70b8c66ed39eae7cdd: kunit: add support for named resources (2020-06-15 09:31:23 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-5.8-rc2 This Kunit update for Linux 5.8-rc2 consists of: - Adds a generic kunit_resource API extending it to support resources that are passed in to kunit in addition kunit allocated resources. In addition, KUnit resources are now refcounted to avoid passed in resources being released while in use by kunit. - Add support for named resources. ---------------------------------------------------------------- Alan Maguire (2): kunit: generalize kunit_resource API beyond allocated resources kunit: add support for named resources include/kunit/test.h | 210 +++++++++++++++++++++++++++++++++++++++------- lib/kunit/kunit-test.c | 111 +++++++++++++++++++----- lib/kunit/string-stream.c | 14 ++-- lib/kunit/test.c | 171 ++++++++++++++++++++++--------------- 4 files changed, 380 insertions(+), 126 deletions(-) ----------------------------------------------------------------

5 years

2
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[PATCH] lib: kunit_test_overflow: add KUnit test of check_*_overflow functions

by Vitor Massaru Iha

This adds the convertion of the runtime tests of check_*_overflow fuctions, from `lib/test_overflow.c`to KUnit tests. The log similar to the one seen in dmesg running test_overflow can be seen in `test.log`. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- lib/Kconfig.debug | 17 ++ lib/Makefile | 1 + lib/kunit_overflow_test.c | 590 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 608 insertions(+) create mode 100644 lib/kunit_overflow_test.c diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1f4ab7a2bdee..72fcfe1f24a4 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2075,6 +2075,23 @@ config SYSCTL_KUNIT_TEST If unsure, say N. +config OVERFLOW_KUNIT_TEST + tristate "KUnit test for overflow" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + This builds the overflow KUnit tests. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running KUnit test harness and are not for inclusion into a production + build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config LIST_KUNIT_TEST tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS depends on KUNIT diff --git a/lib/Makefile b/lib/Makefile index 685aee60de1d..a3290adc0019 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -309,3 +309,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += kunit_overflow_test.o diff --git a/lib/kunit_overflow_test.c b/lib/kunit_overflow_test.c new file mode 100644 index 000000000000..c3eb8f0d3d50 --- /dev/null +++ b/lib/kunit_overflow_test.c @@ -0,0 +1,590 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This code is the conversion of the overflow test in runtime to KUnit tests. + */ + +/* + * Test cases for arithmetic overflow checks. + */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <kunit/test.h> +#include <linux/device.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/overflow.h> +#include <linux/vmalloc.h> + +#define DEFINE_TEST_ARRAY(t) \ + static const struct test_ ## t { \ + t a, b; \ + t sum, diff, prod; \ + bool s_of, d_of, p_of; \ + } t ## _tests[] + +DEFINE_TEST_ARRAY(u8) = { + {0, 0, 0, 0, 0, false, false, false}, + {1, 1, 2, 0, 1, false, false, false}, + {0, 1, 1, U8_MAX, 0, false, true, false}, + {1, 0, 1, 1, 0, false, false, false}, + {0, U8_MAX, U8_MAX, 1, 0, false, true, false}, + {U8_MAX, 0, U8_MAX, U8_MAX, 0, false, false, false}, + {1, U8_MAX, 0, 2, U8_MAX, true, true, false}, + {U8_MAX, 1, 0, U8_MAX-1, U8_MAX, true, false, false}, + {U8_MAX, U8_MAX, U8_MAX-1, 0, 1, true, false, true}, + + {U8_MAX, U8_MAX-1, U8_MAX-2, 1, 2, true, false, true}, + {U8_MAX-1, U8_MAX, U8_MAX-2, U8_MAX, 2, true, true, true}, + + {1U << 3, 1U << 3, 1U << 4, 0, 1U << 6, false, false, false}, + {1U << 4, 1U << 4, 1U << 5, 0, 0, false, false, true}, + {1U << 4, 1U << 3, 3*(1U << 3), 1U << 3, 1U << 7, false, false, false}, + {1U << 7, 1U << 7, 0, 0, 0, true, false, true}, + + {48, 32, 80, 16, 0, false, false, true}, + {128, 128, 0, 0, 0, true, false, true}, + {123, 234, 101, 145, 110, true, true, true}, +}; + +DEFINE_TEST_ARRAY(u16) = { + {0, 0, 0, 0, 0, false, false, false}, + {1, 1, 2, 0, 1, false, false, false}, + {0, 1, 1, U16_MAX, 0, false, true, false}, + {1, 0, 1, 1, 0, false, false, false}, + {0, U16_MAX, U16_MAX, 1, 0, false, true, false}, + {U16_MAX, 0, U16_MAX, U16_MAX, 0, false, false, false}, + {1, U16_MAX, 0, 2, U16_MAX, true, true, false}, + {U16_MAX, 1, 0, U16_MAX-1, U16_MAX, true, false, false}, + {U16_MAX, U16_MAX, U16_MAX-1, 0, 1, true, false, true}, + + {U16_MAX, U16_MAX-1, U16_MAX-2, 1, 2, true, false, true}, + {U16_MAX-1, U16_MAX, U16_MAX-2, U16_MAX, 2, true, true, true}, + + {1U << 7, 1U << 7, 1U << 8, 0, 1U << 14, false, false, false}, + {1U << 8, 1U << 8, 1U << 9, 0, 0, false, false, true}, + {1U << 8, 1U << 7, 3*(1U << 7), 1U << 7, 1U << 15, false, false, false}, + {1U << 15, 1U << 15, 0, 0, 0, true, false, true}, + + {123, 234, 357, 65425, 28782, false, true, false}, + {1234, 2345, 3579, 64425, 10146, false, true, true}, +}; + +DEFINE_TEST_ARRAY(u32) = { + {0, 0, 0, 0, 0, false, false, false}, + {1, 1, 2, 0, 1, false, false, false}, + {0, 1, 1, U32_MAX, 0, false, true, false}, + {1, 0, 1, 1, 0, false, false, false}, + {0, U32_MAX, U32_MAX, 1, 0, false, true, false}, + {U32_MAX, 0, U32_MAX, U32_MAX, 0, false, false, false}, + {1, U32_MAX, 0, 2, U32_MAX, true, true, false}, + {U32_MAX, 1, 0, U32_MAX-1, U32_MAX, true, false, false}, + {U32_MAX, U32_MAX, U32_MAX-1, 0, 1, true, false, true}, + + {U32_MAX, U32_MAX-1, U32_MAX-2, 1, 2, true, false, true}, + {U32_MAX-1, U32_MAX, U32_MAX-2, U32_MAX, 2, true, true, true}, + + {1U << 15, 1U << 15, 1U << 16, 0, 1U << 30, false, false, false}, + {1U << 16, 1U << 16, 1U << 17, 0, 0, false, false, true}, + {1U << 16, 1U << 15, 3*(1U << 15), 1U << 15, 1U << 31, false, false, false}, + {1U << 31, 1U << 31, 0, 0, 0, true, false, true}, + + {-2U, 1U, -1U, -3U, -2U, false, false, false}, + {-4U, 5U, 1U, -9U, -20U, true, false, true}, +}; + +DEFINE_TEST_ARRAY(u64) = { + {0, 0, 0, 0, 0, false, false, false}, + {1, 1, 2, 0, 1, false, false, false}, + {0, 1, 1, U64_MAX, 0, false, true, false}, + {1, 0, 1, 1, 0, false, false, false}, + {0, U64_MAX, U64_MAX, 1, 0, false, true, false}, + {U64_MAX, 0, U64_MAX, U64_MAX, 0, false, false, false}, + {1, U64_MAX, 0, 2, U64_MAX, true, true, false}, + {U64_MAX, 1, 0, U64_MAX-1, U64_MAX, true, false, false}, + {U64_MAX, U64_MAX, U64_MAX-1, 0, 1, true, false, true}, + + {U64_MAX, U64_MAX-1, U64_MAX-2, 1, 2, true, false, true}, + {U64_MAX-1, U64_MAX, U64_MAX-2, U64_MAX, 2, true, true, true}, + + {1ULL << 31, 1ULL << 31, 1ULL << 32, 0, 1ULL << 62, false, false, false}, + {1ULL << 32, 1ULL << 32, 1ULL << 33, 0, 0, false, false, true}, + {1ULL << 32, 1ULL << 31, 3*(1ULL << 31), 1ULL << 31, 1ULL << 63, false, false, false}, + {1ULL << 63, 1ULL << 63, 0, 0, 0, true, false, true}, + {1000000000ULL /* 10^9 */, 10000000000ULL /* 10^10 */, + 11000000000ULL, 18446744064709551616ULL, 10000000000000000000ULL, + false, true, false}, + {-15ULL, 10ULL, -5ULL, -25ULL, -150ULL, false, false, true}, +}; + +DEFINE_TEST_ARRAY(s8) = { + {0, 0, 0, 0, 0, false, false, false}, + + {0, S8_MAX, S8_MAX, -S8_MAX, 0, false, false, false}, + {S8_MAX, 0, S8_MAX, S8_MAX, 0, false, false, false}, + {0, S8_MIN, S8_MIN, S8_MIN, 0, false, true, false}, + {S8_MIN, 0, S8_MIN, S8_MIN, 0, false, false, false}, + + {-1, S8_MIN, S8_MAX, S8_MAX, S8_MIN, true, false, true}, + {S8_MIN, -1, S8_MAX, -S8_MAX, S8_MIN, true, false, true}, + {-1, S8_MAX, S8_MAX-1, S8_MIN, -S8_MAX, false, false, false}, + {S8_MAX, -1, S8_MAX-1, S8_MIN, -S8_MAX, false, true, false}, + {-1, -S8_MAX, S8_MIN, S8_MAX-1, S8_MAX, false, false, false}, + {-S8_MAX, -1, S8_MIN, S8_MIN+2, S8_MAX, false, false, false}, + + {1, S8_MIN, -S8_MAX, -S8_MAX, S8_MIN, false, true, false}, + {S8_MIN, 1, -S8_MAX, S8_MAX, S8_MIN, false, true, false}, + {1, S8_MAX, S8_MIN, S8_MIN+2, S8_MAX, true, false, false}, + {S8_MAX, 1, S8_MIN, S8_MAX-1, S8_MAX, true, false, false}, + + {S8_MIN, S8_MIN, 0, 0, 0, true, false, true}, + {S8_MAX, S8_MAX, -2, 0, 1, true, false, true}, + + {-4, -32, -36, 28, -128, false, false, true}, + {-4, 32, 28, -36, -128, false, false, false}, +}; + +DEFINE_TEST_ARRAY(s16) = { + {0, 0, 0, 0, 0, false, false, false}, + + {0, S16_MAX, S16_MAX, -S16_MAX, 0, false, false, false}, + {S16_MAX, 0, S16_MAX, S16_MAX, 0, false, false, false}, + {0, S16_MIN, S16_MIN, S16_MIN, 0, false, true, false}, + {S16_MIN, 0, S16_MIN, S16_MIN, 0, false, false, false}, + + {-1, S16_MIN, S16_MAX, S16_MAX, S16_MIN, true, false, true}, + {S16_MIN, -1, S16_MAX, -S16_MAX, S16_MIN, true, false, true}, + {-1, S16_MAX, S16_MAX-1, S16_MIN, -S16_MAX, false, false, false}, + {S16_MAX, -1, S16_MAX-1, S16_MIN, -S16_MAX, false, true, false}, + {-1, -S16_MAX, S16_MIN, S16_MAX-1, S16_MAX, false, false, false}, + {-S16_MAX, -1, S16_MIN, S16_MIN+2, S16_MAX, false, false, false}, + + {1, S16_MIN, -S16_MAX, -S16_MAX, S16_MIN, false, true, false}, + {S16_MIN, 1, -S16_MAX, S16_MAX, S16_MIN, false, true, false}, + {1, S16_MAX, S16_MIN, S16_MIN+2, S16_MAX, true, false, false}, + {S16_MAX, 1, S16_MIN, S16_MAX-1, S16_MAX, true, false, false}, + + {S16_MIN, S16_MIN, 0, 0, 0, true, false, true}, + {S16_MAX, S16_MAX, -2, 0, 1, true, false, true}, +}; + +DEFINE_TEST_ARRAY(s32) = { + {0, 0, 0, 0, 0, false, false, false}, + + {0, S32_MAX, S32_MAX, -S32_MAX, 0, false, false, false}, + {S32_MAX, 0, S32_MAX, S32_MAX, 0, false, false, false}, + {0, S32_MIN, S32_MIN, S32_MIN, 0, false, true, false}, + {S32_MIN, 0, S32_MIN, S32_MIN, 0, false, false, false}, + + {-1, S32_MIN, S32_MAX, S32_MAX, S32_MIN, true, false, true}, + {S32_MIN, -1, S32_MAX, -S32_MAX, S32_MIN, true, false, true}, + {-1, S32_MAX, S32_MAX-1, S32_MIN, -S32_MAX, false, false, false}, + {S32_MAX, -1, S32_MAX-1, S32_MIN, -S32_MAX, false, true, false}, + {-1, -S32_MAX, S32_MIN, S32_MAX-1, S32_MAX, false, false, false}, + {-S32_MAX, -1, S32_MIN, S32_MIN+2, S32_MAX, false, false, false}, + + {1, S32_MIN, -S32_MAX, -S32_MAX, S32_MIN, false, true, false}, + {S32_MIN, 1, -S32_MAX, S32_MAX, S32_MIN, false, true, false}, + {1, S32_MAX, S32_MIN, S32_MIN+2, S32_MAX, true, false, false}, + {S32_MAX, 1, S32_MIN, S32_MAX-1, S32_MAX, true, false, false}, + + {S32_MIN, S32_MIN, 0, 0, 0, true, false, true}, + {S32_MAX, S32_MAX, -2, 0, 1, true, false, true}, +}; + +DEFINE_TEST_ARRAY(s64) = { + {0, 0, 0, 0, 0, false, false, false}, + + {0, S64_MAX, S64_MAX, -S64_MAX, 0, false, false, false}, + {S64_MAX, 0, S64_MAX, S64_MAX, 0, false, false, false}, + {0, S64_MIN, S64_MIN, S64_MIN, 0, false, true, false}, + {S64_MIN, 0, S64_MIN, S64_MIN, 0, false, false, false}, + + {-1, S64_MIN, S64_MAX, S64_MAX, S64_MIN, true, false, true}, + {S64_MIN, -1, S64_MAX, -S64_MAX, S64_MIN, true, false, true}, + {-1, S64_MAX, S64_MAX-1, S64_MIN, -S64_MAX, false, false, false}, + {S64_MAX, -1, S64_MAX-1, S64_MIN, -S64_MAX, false, true, false}, + {-1, -S64_MAX, S64_MIN, S64_MAX-1, S64_MAX, false, false, false}, + {-S64_MAX, -1, S64_MIN, S64_MIN+2, S64_MAX, false, false, false}, + + {1, S64_MIN, -S64_MAX, -S64_MAX, S64_MIN, false, true, false}, + {S64_MIN, 1, -S64_MAX, S64_MAX, S64_MIN, false, true, false}, + {1, S64_MAX, S64_MIN, S64_MIN+2, S64_MAX, true, false, false}, + {S64_MAX, 1, S64_MIN, S64_MAX-1, S64_MAX, true, false, false}, + + {S64_MIN, S64_MIN, 0, 0, 0, true, false, true}, + {S64_MAX, S64_MAX, -2, 0, 1, true, false, true}, + + {-1, -1, -2, 0, 1, false, false, false}, + {-1, -128, -129, 127, 128, false, false, false}, + {-128, -1, -129, -127, 128, false, false, false}, + {0, -S64_MAX, -S64_MAX, S64_MAX, 0, false, false, false}, +}; + +#define check_one_op(test, t, fmt, op, sym, a, b, r, of) do { \ + t _r; \ + bool _of; \ + \ + _of = check_ ## op ## _overflow(a, b, &_r); \ + if (_of != of) { \ + KUNIT_FAIL(test, "Expected "fmt" "sym" "fmt \ + " to%s overflow (type %s)\n", \ + a, b, of ? "" : " not", #t); \ + } \ + if (_r != r) { \ + KUNIT_FAIL(test, "Expected "fmt" "sym" "fmt" == " \ + fmt", got "fmt" (type %s)\n", \ + a, b, r, _r, #t); \ + } \ +} while (0) + +#define DEFINE_TEST_FUNC(test, t, fmt) \ +static void do_test_ ## t(struct kunit *test, const struct test_ ## t *p) \ +{ \ + check_one_op(test, t, fmt, add, "+", p->a, p->b, p->sum, p->s_of); \ + check_one_op(test, t, fmt, add, "+", p->b, p->a, p->sum, p->s_of); \ + check_one_op(test, t, fmt, sub, "-", p->a, p->b, p->diff, p->d_of); \ + check_one_op(test, t, fmt, mul, "*", p->a, p->b, p->prod, p->p_of); \ + check_one_op(test, t, fmt, mul, "*", p->b, p->a, p->prod, p->p_of); \ +} \ + \ +static void test_ ## t ## _overflow(struct kunit *test) \ +{ \ + unsigned i; \ + \ + kunit_warn(test, "%-3s: %zu arithmetic tests\n", #t, \ + ARRAY_SIZE(t ## _tests)); \ + for (i = 0; i < ARRAY_SIZE(t ## _tests); ++i) \ + do_test_ ## t(test, &t ## _tests[i]); \ +} + +DEFINE_TEST_FUNC(test, u8, "%d"); +DEFINE_TEST_FUNC(test, s8, "%d"); +DEFINE_TEST_FUNC(test, u16, "%d"); +DEFINE_TEST_FUNC(test, s16, "%d"); +DEFINE_TEST_FUNC(test, u32, "%u"); +DEFINE_TEST_FUNC(test, s32, "%d"); +#if BITS_PER_LONG == 64 +DEFINE_TEST_FUNC(test, u64, "%llu"); +DEFINE_TEST_FUNC(test, s64, "%lld"); +#endif + +static void overflow_calculation_test(struct kunit *test) +{ + + test_u8_overflow(test); + test_s8_overflow(test); + test_s8_overflow(test); + test_u16_overflow(test); + test_s16_overflow(test); + test_u32_overflow(test); + test_s32_overflow(test); +#if BITS_PER_LONG == 64 + test_u64_overflow(test); + test_s64_overflow(test); +#endif +} + +static void overflow_shift_test(struct kunit *test) +{ +/* Args are: value, shift, type, expected result, overflow expected */ +#define TEST_ONE_SHIFT(a, s, t, expect, of) ({ \ + int __failed = 0; \ + typeof(a) __a = (a); \ + typeof(s) __s = (s); \ + t __e = (expect); \ + t __d; \ + bool __of = check_shl_overflow(__a, __s, &__d); \ + if (__of != of) { \ + KUNIT_FAIL(test, "Expected (%s)(%s << %s) to%s overflow\n", \ + #t, #a, #s, of ? "" : " not"); \ + __failed = 1; \ + } else if (!__of && __d != __e) { \ + KUNIT_FAIL(test, "Expected (%s)(%s << %s) == %s\n", \ + #t, #a, #s, #expect); \ + if ((t)-1 < 0) \ + KUNIT_FAIL(test, "got %lld\n", (s64)__d); \ + else \ + KUNIT_FAIL(test, "got %llu\n", (u64)__d); \ + __failed = 1; \ + } \ + if (!__failed) \ + kunit_info(test, "ok: (%s)(%s << %s) == %s\n", #t, #a, #s, \ + of ? "overflow" : #expect); \ + __failed; \ +}) + + /* Sane shifts. */ + TEST_ONE_SHIFT(1, 0, u8, 1 << 0, false); + TEST_ONE_SHIFT(1, 4, u8, 1 << 4, false); + TEST_ONE_SHIFT(1, 7, u8, 1 << 7, false); + TEST_ONE_SHIFT(0xF, 4, u8, 0xF << 4, false); + TEST_ONE_SHIFT(1, 0, u16, 1 << 0, false); + TEST_ONE_SHIFT(1, 10, u16, 1 << 10, false); + TEST_ONE_SHIFT(1, 15, u16, 1 << 15, false); + TEST_ONE_SHIFT(0xFF, 8, u16, 0xFF << 8, false); + TEST_ONE_SHIFT(1, 0, int, 1 << 0, false); + TEST_ONE_SHIFT(1, 16, int, 1 << 16, false); + TEST_ONE_SHIFT(1, 30, int, 1 << 30, false); + TEST_ONE_SHIFT(1, 0, s32, 1 << 0, false); + TEST_ONE_SHIFT(1, 16, s32, 1 << 16, false); + TEST_ONE_SHIFT(1, 30, s32, 1 << 30, false); + TEST_ONE_SHIFT(1, 0, unsigned int, 1U << 0, false); + TEST_ONE_SHIFT(1, 20, unsigned int, 1U << 20, false); + TEST_ONE_SHIFT(1, 31, unsigned int, 1U << 31, false); + TEST_ONE_SHIFT(0xFFFFU, 16, unsigned int, 0xFFFFU << 16, false); + TEST_ONE_SHIFT(1, 0, u32, 1U << 0, false); + TEST_ONE_SHIFT(1, 20, u32, 1U << 20, false); + TEST_ONE_SHIFT(1, 31, u32, 1U << 31, false); + TEST_ONE_SHIFT(0xFFFFU, 16, u32, 0xFFFFU << 16, false); + TEST_ONE_SHIFT(1, 0, u64, 1ULL << 0, false); + TEST_ONE_SHIFT(1, 40, u64, 1ULL << 40, false); + TEST_ONE_SHIFT(1, 63, u64, 1ULL << 63, false); + TEST_ONE_SHIFT(0xFFFFFFFFULL, 32, u64, + 0xFFFFFFFFULL << 32, false); + + /* Sane shift: start and end with 0, without a too-wide shift. */ + TEST_ONE_SHIFT(0, 7, u8, 0, false); + TEST_ONE_SHIFT(0, 15, u16, 0, false); + TEST_ONE_SHIFT(0, 31, unsigned int, 0, false); + TEST_ONE_SHIFT(0, 31, u32, 0, false); + TEST_ONE_SHIFT(0, 63, u64, 0, false); + + /* Sane shift: start and end with 0, without reaching signed bit. */ + TEST_ONE_SHIFT(0, 6, s8, 0, false); + TEST_ONE_SHIFT(0, 14, s16, 0, false); + TEST_ONE_SHIFT(0, 30, int, 0, false); + TEST_ONE_SHIFT(0, 30, s32, 0, false); + TEST_ONE_SHIFT(0, 62, s64, 0, false); + + /* Overflow: shifted the bit off the end. */ + TEST_ONE_SHIFT(1, 8, u8, 0, true); + TEST_ONE_SHIFT(1, 16, u16, 0, true); + TEST_ONE_SHIFT(1, 32, unsigned int, 0, true); + TEST_ONE_SHIFT(1, 32, u32, 0, true); + TEST_ONE_SHIFT(1, 64, u64, 0, true); + + /* Overflow: shifted into the signed bit. */ + TEST_ONE_SHIFT(1, 7, s8, 0, true); + TEST_ONE_SHIFT(1, 15, s16, 0, true); + TEST_ONE_SHIFT(1, 31, int, 0, true); + TEST_ONE_SHIFT(1, 31, s32, 0, true); + TEST_ONE_SHIFT(1, 63, s64, 0, true); + + /* Overflow: high bit falls off unsigned types. */ + /* 10010110 */ + TEST_ONE_SHIFT(150, 1, u8, 0, true); + /* 1000100010010110 */ + TEST_ONE_SHIFT(34966, 1, u16, 0, true); + /* 10000100000010001000100010010110 */ + TEST_ONE_SHIFT(2215151766U, 1, u32, 0, true); + TEST_ONE_SHIFT(2215151766U, 1, unsigned int, 0, true); + /* 1000001000010000010000000100000010000100000010001000100010010110 */ + TEST_ONE_SHIFT(9372061470395238550ULL, 1, u64, 0, true); + + /* Overflow: bit shifted into signed bit on signed types. */ + /* 01001011 */ + TEST_ONE_SHIFT(75, 1, s8, 0, true); + /* 0100010001001011 */ + TEST_ONE_SHIFT(17483, 1, s16, 0, true); + /* 01000010000001000100010001001011 */ + TEST_ONE_SHIFT(1107575883, 1, s32, 0, true); + TEST_ONE_SHIFT(1107575883, 1, int, 0, true); + /* 0100000100001000001000000010000001000010000001000100010001001011 */ + TEST_ONE_SHIFT(4686030735197619275LL, 1, s64, 0, true); + + /* Overflow: bit shifted past signed bit on signed types. */ + /* 01001011 */ + TEST_ONE_SHIFT(75, 2, s8, 0, true); + /* 0100010001001011 */ + TEST_ONE_SHIFT(17483, 2, s16, 0, true); + /* 01000010000001000100010001001011 */ + TEST_ONE_SHIFT(1107575883, 2, s32, 0, true); + TEST_ONE_SHIFT(1107575883, 2, int, 0, true); + /* 0100000100001000001000000010000001000010000001000100010001001011 */ + TEST_ONE_SHIFT(4686030735197619275LL, 2, s64, 0, true); + + /* Overflow: values larger than destination type. */ + TEST_ONE_SHIFT(0x100, 0, u8, 0, true); + TEST_ONE_SHIFT(0xFF, 0, s8, 0, true); + TEST_ONE_SHIFT(0x10000U, 0, u16, 0, true); + TEST_ONE_SHIFT(0xFFFFU, 0, s16, 0, true); + TEST_ONE_SHIFT(0x100000000ULL, 0, u32, 0, true); + TEST_ONE_SHIFT(0x100000000ULL, 0, unsigned int, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, s32, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFUL, 0, int, 0, true); + TEST_ONE_SHIFT(0xFFFFFFFFFFFFFFFFULL, 0, s64, 0, true); + + /* Nonsense: negative initial value. */ + TEST_ONE_SHIFT(-1, 0, s8, 0, true); + TEST_ONE_SHIFT(-1, 0, u8, 0, true); + TEST_ONE_SHIFT(-5, 0, s16, 0, true); + TEST_ONE_SHIFT(-5, 0, u16, 0, true); + TEST_ONE_SHIFT(-10, 0, int, 0, true); + TEST_ONE_SHIFT(-10, 0, unsigned int, 0, true); + TEST_ONE_SHIFT(-100, 0, s32, 0, true); + TEST_ONE_SHIFT(-100, 0, u32, 0, true); + TEST_ONE_SHIFT(-10000, 0, s64, 0, true); + TEST_ONE_SHIFT(-10000, 0, u64, 0, true); + + /* Nonsense: negative shift values. */ + TEST_ONE_SHIFT(0, -5, s8, 0, true); + TEST_ONE_SHIFT(0, -5, u8, 0, true); + TEST_ONE_SHIFT(0, -10, s16, 0, true); + TEST_ONE_SHIFT(0, -10, u16, 0, true); + TEST_ONE_SHIFT(0, -15, int, 0, true); + TEST_ONE_SHIFT(0, -15, unsigned int, 0, true); + TEST_ONE_SHIFT(0, -20, s32, 0, true); + TEST_ONE_SHIFT(0, -20, u32, 0, true); + TEST_ONE_SHIFT(0, -30, s64, 0, true); + TEST_ONE_SHIFT(0, -30, u64, 0, true); + + /* Overflow: shifted at or beyond entire type's bit width. */ + TEST_ONE_SHIFT(0, 8, u8, 0, true); + TEST_ONE_SHIFT(0, 9, u8, 0, true); + TEST_ONE_SHIFT(0, 8, s8, 0, true); + TEST_ONE_SHIFT(0, 9, s8, 0, true); + TEST_ONE_SHIFT(0, 16, u16, 0, true); + TEST_ONE_SHIFT(0, 17, u16, 0, true); + TEST_ONE_SHIFT(0, 16, s16, 0, true); + TEST_ONE_SHIFT(0, 17, s16, 0, true); + TEST_ONE_SHIFT(0, 32, u32, 0, true); + TEST_ONE_SHIFT(0, 33, u32, 0, true); + TEST_ONE_SHIFT(0, 32, int, 0, true); + TEST_ONE_SHIFT(0, 33, int, 0, true); + TEST_ONE_SHIFT(0, 32, s32, 0, true); + TEST_ONE_SHIFT(0, 33, s32, 0, true); + TEST_ONE_SHIFT(0, 64, u64, 0, true); + TEST_ONE_SHIFT(0, 65, u64, 0, true); + TEST_ONE_SHIFT(0, 64, s64, 0, true); + TEST_ONE_SHIFT(0, 65, s64, 0, true); + + /* + * Corner case: for unsigned types, we fail when we've shifted + * through the entire width of bits. For signed types, we might + * want to match this behavior, but that would mean noticing if + * we shift through all but the signed bit, and this is not + * currently detected (but we'll notice an overflow into the + * signed bit). So, for now, we will test this condition but + * mark it as not expected to overflow. + */ + TEST_ONE_SHIFT(0, 7, s8, 0, false); + TEST_ONE_SHIFT(0, 15, s16, 0, false); + TEST_ONE_SHIFT(0, 31, int, 0, false); + TEST_ONE_SHIFT(0, 31, s32, 0, false); + TEST_ONE_SHIFT(0, 63, s64, 0, false); +} + +/* + * Deal with the various forms of allocator arguments. See comments above + * the DEFINE_TEST_ALLOC() instances for mapping of the "bits". + */ +#define alloc_GFP (GFP_KERNEL | __GFP_NOWARN) +#define alloc010(alloc, arg, sz) alloc(sz, alloc_GFP) +#define alloc011(alloc, arg, sz) alloc(sz, alloc_GFP, NUMA_NO_NODE) +#define alloc000(alloc, arg, sz) alloc(sz) +#define alloc001(alloc, arg, sz) alloc(sz, NUMA_NO_NODE) +#define alloc110(alloc, arg, sz) alloc(arg, sz, alloc_GFP) +#define free0(free, arg, ptr) free(ptr) +#define free1(free, arg, ptr) free(arg, ptr) + +/* Wrap around to 16K */ +#define TEST_SIZE (5 * 4096) + +#define DEFINE_TEST_ALLOC(test, func, free_func, want_arg, want_gfp, want_node) \ +static void test_ ## func (struct kunit *test, void *arg) \ +{ \ + volatile size_t a = TEST_SIZE; \ + volatile size_t b = (SIZE_MAX / TEST_SIZE) + 1; \ + void *ptr; \ + \ + /* Tiny allocation test. */ \ + ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, 1); \ + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr); \ + if (!ptr) { \ + kunit_err(test, #func " failed regular allocation?!\n"); \ + } \ + free ## want_arg (free_func, arg, ptr); \ + \ + /* Wrapped allocation test. */ \ + ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, a * b); \ + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr); \ + if (!ptr) { \ + kunit_err(test, #func " unexpectedly failed bad wrapping?!\n"); \ + } \ + free ## want_arg (free_func, arg, ptr); \ + \ + /* Saturated allocation test. */ \ + ptr = alloc ## want_arg ## want_gfp ## want_node (func, arg, \ + array_size(a, b)); \ + KUNIT_ASSERT_TRUE(test, IS_ERR_OR_NULL(ptr)); \ + if (ptr) { \ + kunit_err(test, #func " missed saturation!\n"); \ + free ## want_arg (free_func, arg, ptr); \ + } \ + kunit_info(test, #func " detected saturation\n"); \ +} + +/* + * Allocator uses a trailing node argument -------------------+ (e.g. kmalloc_node()) + * Allocator uses the gfp_t argument ----------------------+ | (e.g. kmalloc()) + * Allocator uses a special leading argument -----------+ | | (e.g. devm_kmalloc()) + * | | | + */ +DEFINE_TEST_ALLOC(test, kmalloc, kfree, 0, 1, 0); +DEFINE_TEST_ALLOC(test, kmalloc_node, kfree, 0, 1, 1); +DEFINE_TEST_ALLOC(test, kzalloc, kfree, 0, 1, 0); +DEFINE_TEST_ALLOC(test, kzalloc_node, kfree, 0, 1, 1); +DEFINE_TEST_ALLOC(test, vmalloc, vfree, 0, 0, 0); +DEFINE_TEST_ALLOC(test, vmalloc_node, vfree, 0, 0, 1); +DEFINE_TEST_ALLOC(test, vzalloc, vfree, 0, 0, 0); +DEFINE_TEST_ALLOC(test, vzalloc_node, vfree, 0, 0, 1); +DEFINE_TEST_ALLOC(test, kvmalloc, kvfree, 0, 1, 0); +DEFINE_TEST_ALLOC(test, kvmalloc_node, kvfree, 0, 1, 1); +DEFINE_TEST_ALLOC(test, kvzalloc, kvfree, 0, 1, 0); +DEFINE_TEST_ALLOC(test, kvzalloc_node, kvfree, 0, 1, 1); +DEFINE_TEST_ALLOC(test, devm_kmalloc, devm_kfree, 1, 1, 0); +DEFINE_TEST_ALLOC(test, devm_kzalloc, devm_kfree, 1, 1, 0); + +static void overflow_allocation_test(struct kunit *test) +{ + const char device_name[] = "overflow-test"; + struct device *dev; + + /* Create dummy device for devm_kmalloc()-family tests. */ + dev = root_device_register(device_name); + if (IS_ERR(dev)) + kunit_warn(test, "Cannot register test device\n"); + + test_kmalloc(test, NULL); + test_kmalloc_node(test, NULL); + test_kzalloc(test, NULL); + test_kzalloc_node(test, NULL); + test_kvmalloc(test, NULL); + test_kvmalloc_node(test, NULL); + test_kvzalloc(test, NULL); + test_kvzalloc_node(test, NULL); + test_vmalloc(test, NULL); + test_vmalloc_node(test, NULL); + test_vzalloc(test, NULL); + test_vzalloc_node(test, NULL); + test_devm_kmalloc(test, dev); + test_devm_kzalloc(test, dev); + + device_unregister(dev); +} + +static struct kunit_case overflow_test_cases[] = { + KUNIT_CASE(overflow_calculation_test), + KUNIT_CASE(overflow_shift_test), + KUNIT_CASE(overflow_allocation_test), + {} +}; + +static struct kunit_suite overflow_test_suite = { + .name = "overflow", + .test_cases = overflow_test_cases, +}; + +kunit_test_suites(&overflow_test_suite); + +MODULE_LICENSE("GPL v2"); -- 2.26.2

5 years

5
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[PATCH v3 0/7] selftsts/ftrace: Add requires list for each test case

by Masami Hiramatsu

Hi, Here is the 3rd version of the series of "requires:" list for simplifying and unifying requirement checks for each test case. The previous version is here. https://lkml.kernel.org/r/159108888259.42416.547252366885528860.stgit@devno… I've fixed a comment in the template file in this version. In short, this series introduces "requires:" line instead of checking required ftrace interfaces in each test case. The requires line supports following checks - tracefs interface check: Check whether the given file or directory in the tracefs. (No suffix) [3/7],[4/7],[5/7] - available tracer check: Check whether the given tracer is available (":tracer" suffix) [6/7] - README feature check: Check whether the given string is in the README (":README" suffix) [7/7] This series also includes the description line fix and unresolved -> unsupported change ([1/7] and [2/7]). Since this series depends on following 2 commits, commit 619ee76f5c9f ("selftests/ftrace: Return unsupported if no error_log file") on Shuah's Kselftest tree commit bea24f766efc ("selftests/ftrace: Distinguish between hist and synthetic event checks") on Steven's Tracing tree This can be applied on the tree which merged both of them. Also, you can get the series from the following. git://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git ftracetest-requires-v3 Thank you, --- Masami Hiramatsu (7): selftests/ftrace: Allow ":" in description selftests/ftrace: Return unsupported for the unconfigured features selftests/ftrace: Add "requires:" list support selftests/ftrace: Convert required interface checks into requires list selftests/ftrace: Convert check_filter_file() with requires list selftests/ftrace: Support ":tracer" suffix for requires selftests/ftrace: Support ":README" suffix for requires tools/testing/selftests/ftrace/ftracetest | 11 ++++++- .../selftests/ftrace/test.d/00basic/snapshot.tc | 3 +- .../selftests/ftrace/test.d/00basic/trace_pipe.tc | 3 +- .../ftrace/test.d/direct/kprobe-direct.tc | 6 +--- .../ftrace/test.d/dynevent/add_remove_kprobe.tc | 6 +--- .../ftrace/test.d/dynevent/add_remove_synth.tc | 5 +-- .../ftrace/test.d/dynevent/clear_select_events.tc | 11 +------ .../ftrace/test.d/dynevent/generic_clear_event.tc | 8 +---- .../selftests/ftrace/test.d/event/event-enable.tc | 6 +--- .../selftests/ftrace/test.d/event/event-no-pid.tc | 11 +------ .../selftests/ftrace/test.d/event/event-pid.tc | 11 +------ .../ftrace/test.d/event/subsystem-enable.tc | 6 +--- .../ftrace/test.d/event/toplevel-enable.tc | 6 +--- .../ftrace/test.d/ftrace/fgraph-filter-stack.tc | 14 +-------- .../ftrace/test.d/ftrace/fgraph-filter.tc | 8 +---- .../ftrace/test.d/ftrace/func-filter-glob.tc | 8 +---- .../test.d/ftrace/func-filter-notrace-pid.tc | 13 +------- .../ftrace/test.d/ftrace/func-filter-pid.tc | 13 +------- .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 3 +- .../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 6 +--- .../ftrace/test.d/ftrace/func_event_triggers.tc | 7 ++--- .../ftrace/test.d/ftrace/func_mod_trace.tc | 3 +- .../ftrace/test.d/ftrace/func_profile_stat.tc | 3 +- .../ftrace/test.d/ftrace/func_profiler.tc | 12 +------- .../ftrace/test.d/ftrace/func_set_ftrace_file.tc | 6 ++-- .../ftrace/test.d/ftrace/func_stack_tracer.tc | 8 +---- .../test.d/ftrace/func_traceonoff_triggers.tc | 6 ++-- .../ftrace/test.d/ftrace/tracing-error-log.tc | 12 ++------ tools/testing/selftests/ftrace/test.d/functions | 28 ++++++++++++++---- .../ftrace/test.d/instances/instance-event.tc | 6 +--- .../selftests/ftrace/test.d/instances/instance.tc | 6 +--- .../ftrace/test.d/kprobe/add_and_remove.tc | 3 +- .../selftests/ftrace/test.d/kprobe/busy_check.tc | 3 +- .../selftests/ftrace/test.d/kprobe/kprobe_args.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_args_comm.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_args_string.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 5 +-- .../ftrace/test.d/kprobe/kprobe_args_type.tc | 5 +-- .../ftrace/test.d/kprobe/kprobe_args_user.tc | 4 +-- .../ftrace/test.d/kprobe/kprobe_eventname.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_ftrace.tc | 6 +--- .../ftrace/test.d/kprobe/kprobe_module.tc | 3 +- .../ftrace/test.d/kprobe/kprobe_multiprobe.tc | 5 +-- .../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 5 +-- .../ftrace/test.d/kprobe/kretprobe_args.tc | 3 +- .../ftrace/test.d/kprobe/kretprobe_maxactive.tc | 4 +-- .../ftrace/test.d/kprobe/multiple_kprobes.tc | 3 +- .../selftests/ftrace/test.d/kprobe/probepoint.tc | 3 +- .../selftests/ftrace/test.d/kprobe/profile.tc | 3 +- .../ftrace/test.d/kprobe/uprobe_syntax_errors.tc | 5 +-- .../ftrace/test.d/preemptirq/irqsoff_tracer.tc | 4 +-- tools/testing/selftests/ftrace/test.d/template | 4 +++ .../selftests/ftrace/test.d/tracer/wakeup.tc | 6 +--- .../selftests/ftrace/test.d/tracer/wakeup_rt.tc | 6 +--- .../inter-event/trigger-action-hist-xfail.tc | 13 +------- .../inter-event/trigger-field-variable-support.tc | 16 +--------- .../trigger-inter-event-combined-hist.tc | 16 +--------- .../inter-event/trigger-multi-actions-accept.tc | 16 +--------- .../inter-event/trigger-onchange-action-hist.tc | 8 +---- .../inter-event/trigger-onmatch-action-hist.tc | 16 +--------- .../trigger-onmatch-onmax-action-hist.tc | 16 +--------- .../inter-event/trigger-onmax-action-hist.tc | 16 +--------- .../inter-event/trigger-snapshot-action-hist.tc | 20 +------------ .../trigger-synthetic-event-createremove.tc | 11 +------ .../inter-event/trigger-synthetic-event-syntax.tc | 11 +------ .../inter-event/trigger-trace-action-hist.tc | 18 +----------- .../ftrace/test.d/trigger/trigger-eventonoff.tc | 11 +------ .../ftrace/test.d/trigger/trigger-filter.tc | 11 +------ .../ftrace/test.d/trigger/trigger-hist-mod.tc | 16 +--------- .../test.d/trigger/trigger-hist-syntax-errors.tc | 18 +----------- .../ftrace/test.d/trigger/trigger-hist.tc | 16 +--------- .../ftrace/test.d/trigger/trigger-multihist.tc | 16 +--------- .../ftrace/test.d/trigger/trigger-snapshot.tc | 16 +--------- .../ftrace/test.d/trigger/trigger-stacktrace.tc | 11 +------ .../test.d/trigger/trigger-trace-marker-hist.tc | 21 +------------- .../trigger/trigger-trace-marker-snapshot.tc | 21 +------------- .../trigger-trace-marker-synthetic-kernel.tc | 31 +------------------- .../trigger/trigger-trace-marker-synthetic.tc | 26 +---------------- .../ftrace/test.d/trigger/trigger-traceonoff.tc | 11 +------ 80 files changed, 119 insertions(+), 633 deletions(-) -- Masami Hiramatsu (Linaro) <mhiramat(a)kernel.org>

5 years

3
16
0 0

[PATCH v3 0/3] selftests/livepatch: small script cleanups

by Joe Lawrence

Hi Petr, Given the realization about kernel log timestamps and partial log comparison with v2, I respun a final version dropping the dmesg --notime patch, fixed any rebase conflicts, and added a comment per your suggestion. I copied all the ack and review tags from v2 since the patchset is unchanged otherwise. Hopefully this v3 minimizes any maintainer fiddling on your end. I did iterate through the patches and verified that I could run each multiple times without the dmesg comparison getting confused. Thanks, -- Joe v3: - when modifying the dmesg comparision to select only new messages in patch 1, add a comment explaining the importance of timestamps to accurately pick from where the log left off at start_test [pmladek] - since Petr determined that the timestamps were in fact very important to maintain for the dmesg / diff comparision, drop the patch which added --notime to dmesg invocations [pmladek] - update the comparision regex filter for 'livepatch:' now that it's going to be prefixed by '[timestamp] ' and no longer at the start of the buffer line. This part of the log comparison should now be unmodified by the patchset. Joe Lawrence (3): selftests/livepatch: Don't clear dmesg when running tests selftests/livepatch: refine dmesg 'taints' in dmesg comparison selftests/livepatch: add test delimiter to dmesg tools/testing/selftests/livepatch/README | 16 +++--- .../testing/selftests/livepatch/functions.sh | 37 ++++++++++++- .../selftests/livepatch/test-callbacks.sh | 55 ++++--------------- .../selftests/livepatch/test-ftrace.sh | 4 +- .../selftests/livepatch/test-livepatch.sh | 12 +--- .../selftests/livepatch/test-shadow-vars.sh | 4 +- .../testing/selftests/livepatch/test-state.sh | 21 +++---- 7 files changed, 68 insertions(+), 81 deletions(-) -- 2.21.3

5 years

2
4
0 0

[PATCH v4 00/11] Add seccomp notifier ioctl that enables adding fds

by Kees Cook

Hello! This is a bit of thread-merge between [1] and [2]. tl;dr: add a way for a seccomp user_notif process manager to inject files into the managed process in order to handle emulation of various fd-returning syscalls across security boundaries. Containers folks and Chrome are in need of the feature, and investigating this solution uncovered (and fixed) implementation issues with existing file sending routines. I intend to carry this in the seccomp tree, unless someone has objections. :) Please review and test! -Kees [1] https://lore.kernel.org/lkml/20200603011044.7972-1-sargun@sargun.me/ [2] https://lore.kernel.org/lkml/20200610045214.1175600-1-keescook@chromium.org/ Kees Cook (9): net/scm: Regularize compat handling of scm_detach_fds() fs: Move __scm_install_fd() to __fd_install_received() fs: Add fd_install_received() wrapper for __fd_install_received() pidfd: Replace open-coded partial fd_install_received() fs: Expand __fd_install_received() to accept fd selftests/seccomp: Make kcmp() less required selftests/seccomp: Rename user_trap_syscall() to user_notif_syscall() seccomp: Switch addfd to Extensible Argument ioctl seccomp: Fix ioctl number for SECCOMP_IOCTL_NOTIF_ID_VALID Sargun Dhillon (2): seccomp: Introduce addfd ioctl to seccomp user notifier selftests/seccomp: Test SECCOMP_IOCTL_NOTIF_ADDFD fs/file.c | 65 ++++ include/linux/file.h | 16 + include/uapi/linux/seccomp.h | 25 +- kernel/pid.c | 11 +- kernel/seccomp.c | 181 ++++++++- net/compat.c | 55 ++- net/core/scm.c | 50 +-- tools/testing/selftests/seccomp/seccomp_bpf.c | 350 +++++++++++++++--- 8 files changed, 618 insertions(+), 135 deletions(-) -- 2.25.1

5 years, 1 month

5
27
0 0

[PATCH] kunit: fix KconfigParseError by ignoring CC_VERSION_TEXT

by Vitor Massaru Iha

Commit 8b59cd81dc5 ("kbuild: ensure full rebuild when the compiler is updated") added the environment variable CC_VERSION_TEXT, parse_from_string() doesn't expect a string and this causes the failure below: [iha@bbking linux]$ tools/testing/kunit/kunit.py run --timeout=60 [00:20:12] Configuring KUnit Kernel ... Generating .config ... Traceback (most recent call last): File "tools/testing/kunit/kunit.py", line 347, in <module> main(sys.argv[1:]) File "tools/testing/kunit/kunit.py", line 257, in main result = run_tests(linux, request) File "tools/testing/kunit/kunit.py", line 134, in run_tests config_result = config_tests(linux, config_request) File "tools/testing/kunit/kunit.py", line 64, in config_tests success = linux.build_reconfig(request.build_dir, request.make_options) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 161, in build_reconfig return self.build_config(build_dir, make_options) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 145, in build_config return self.validate_config(build_dir) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 124, in validate_config validated_kconfig.read_from_file(kconfig_path) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_config.py", line 89, in read_from_file self.parse_from_string(f.read()) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_config.py", line 85, in parse_from_string raise KconfigParseError('Failed to parse: ' + line) kunit_config.KconfigParseError: Failed to parse: CONFIG_CC_VERSION_TEXT="gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1)" Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- tools/testing/kunit/kunit_config.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/kunit/kunit_config.py b/tools/testing/kunit/kunit_config.py index e75063d603b5..3033520597b6 100644 --- a/tools/testing/kunit/kunit_config.py +++ b/tools/testing/kunit/kunit_config.py @@ -9,6 +9,7 @@ import collections import re +CONFIG_IGNORE_CC_VERSION_TEXT = 'CONFIG_CC_VERSION_TEXT' CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$' CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+)$' @@ -79,7 +80,7 @@ class Kconfig(object): self.add_entry(entry) continue - if line[0] == '#': + if line[0] == '#' or CONFIG_IGNORE_CC_VERSION_TEXT in line: continue else: raise KconfigParseError('Failed to parse: ' + line) base-commit: 7bf200b3a4ac10b1b0376c70b8c66ed39eae7cdd -- 2.26.2

5 years, 1 month

2
2
0 0

[PATCH v2] kunit: fix KconfigParseError handling CC_VERSION_TEXT

by Vitor Massaru Iha

Commit 8b59cd81dc5 ("kbuild: ensure full rebuild when the compiler is updated") added the environment variable CC_VERSION_TEXT, parse_from_string() doesn't expect a string in value field and this causes the failure below: [iha@bbking linux]$ tools/testing/kunit/kunit.py run --timeout=60 [00:20:12] Configuring KUnit Kernel ... Generating .config ... Traceback (most recent call last): File "tools/testing/kunit/kunit.py", line 347, in <module> main(sys.argv[1:]) File "tools/testing/kunit/kunit.py", line 257, in main result = run_tests(linux, request) File "tools/testing/kunit/kunit.py", line 134, in run_tests config_result = config_tests(linux, config_request) File "tools/testing/kunit/kunit.py", line 64, in config_tests success = linux.build_reconfig(request.build_dir, request.make_options) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 161, in build_reconfig return self.build_config(build_dir, make_options) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 145, in build_config return self.validate_config(build_dir) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_kernel.py", line 124, in validate_config validated_kconfig.read_from_file(kconfig_path) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_config.py", line 89, in read_from_file self.parse_from_string(f.read()) File "/home/iha/lkmp/linux/tools/testing/kunit/kunit_config.py", line 85, in parse_from_string raise KconfigParseError('Failed to parse: ' + line) kunit_config.KconfigParseError: Failed to parse: CONFIG_CC_VERSION_TEXT="gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1)" Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: - maintains CC_VERSION_TEXT in the .config file to ensure full rebuild when the compiler is updated. --- tools/testing/kunit/kunit_config.py | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/kunit/kunit_config.py b/tools/testing/kunit/kunit_config.py index e75063d603b5..c407c7c6a2b0 100644 --- a/tools/testing/kunit/kunit_config.py +++ b/tools/testing/kunit/kunit_config.py @@ -81,6 +81,12 @@ class Kconfig(object): if line[0] == '#': continue + + if 'CONFIG_CC_VERSION_TEXT' in line: + name, value = line.split('=') + entry = KconfigEntry(name, value) + self.add_entry(entry) + continue else: raise KconfigParseError('Failed to parse: ' + line) base-commit: 7bf200b3a4ac10b1b0376c70b8c66ed39eae7cdd -- 2.26.2

5 years, 1 month

2
1
0 0

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