July 2021 - Linux-kselftest-mirror

[PATCH v1 0/3] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… Mark Brown (3): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 9 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 578 ++++++++++++++++++ 7 files changed, 624 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

2 years, 9 months

2
14
0 0

[PATCH] kernel/module: add documentation for try_module_get()

by Luis Chamberlain

There is quite a bit of tribal knowledge around proper use of try_module_get() and that it must be used only in a context which can ensure the module won't be gone during the operation. Document this little bit of tribal knowledge. Signed-off-by: Luis Chamberlain <mcgrof(a)kernel.org> --- kernel/module.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/kernel/module.c b/kernel/module.c index ed13917ea5f3..0d609647a54d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1066,6 +1066,28 @@ void __module_get(struct module *module) } EXPORT_SYMBOL(__module_get); +/** + * try_module_get - yields to module removal and bumps reference count otherwise + * @module: the module we should check for + * + * This can be used to check if userspace has requested to remove a module, + * and if so let the caller give up. Otherwise it takes a reference count to + * ensure a request from userspace to remove the module cannot happen. + * + * Care must be taken to ensure the module cannot be removed during + * try_module_get(). This can be done by having another entity other than the + * module itself increment the module reference count, or through some other + * means which gaurantees the module could not be removed during an operation. + * An example of this later case is using this call in a sysfs file which the + * module created. The sysfs store / read file operation is ensured to exist + * and still be present by kernfs's active reference. If a sysfs file operation + * is being run, the module which created it must still exist as the module is + * in charge of removal of the sysfs file. + * + * The real value to try_module_get() is the module_is_live() check which + * ensures this the caller of try_module_get() can yields to userspace module + * removal requests and fail whatever it was about to process. + */ bool try_module_get(struct module *module) { bool ret = true; -- 2.30.2

2 years, 9 months

5
10
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[PATCH] net: netfilter: Fix port selection of FTP for NF_NAT_RANGE_PROTO_SPECIFIED

by Cole Dishington

FTP port selection ignores specified port ranges (with iptables masquerade --to-ports) when creating an expectation, based on FTP commands PORT or PASV, for the data connection. Co-developed-by: Anthony Lineham <anthony.lineham(a)alliedtelesis.co.nz> Signed-off-by: Anthony Lineham <anthony.lineham(a)alliedtelesis.co.nz> Co-developed-by: Scott Parlane <scott.parlane(a)alliedtelesis.co.nz> Signed-off-by: Scott Parlane <scott.parlane(a)alliedtelesis.co.nz> Co-developed-by: Blair Steven <blair.steven(a)alliedtelesis.co.nz> Signed-off-by: Blair Steven <blair.steven(a)alliedtelesis.co.nz> Signed-off-by: Cole Dishington <Cole.Dishington(a)alliedtelesis.co.nz> --- Notes: Currently with iptables -t nat -j MASQUERADE -p tcp --to-ports 10000-10005, creating a passive ftp connection from a client will result in the control connection being within the specified port range but the data connection being outside of the range. This patch fixes this behaviour to have both connections be in the specified range. include/net/netfilter/nf_conntrack.h | 3 +++ net/netfilter/nf_nat_core.c | 10 ++++++---- net/netfilter/nf_nat_ftp.c | 26 ++++++++++++-------------- net/netfilter/nf_nat_helper.c | 12 ++++++++---- 4 files changed, 29 insertions(+), 22 deletions(-) diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index cc663c68ddc4..b98d5d04c7ab 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -24,6 +24,8 @@ #include <net/netfilter/nf_conntrack_tuple.h> +#include <uapi/linux/netfilter/nf_nat.h> + struct nf_ct_udp { unsigned long stream_ts; }; @@ -99,6 +101,7 @@ struct nf_conn { #if IS_ENABLED(CONFIG_NF_NAT) struct hlist_node nat_bysource; + struct nf_nat_range2 range; #endif /* all members below initialized via memset */ struct { } __nfct_init_offset; diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index 7de595ead06a..4772c8457ef2 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -360,10 +360,10 @@ find_best_ips_proto(const struct nf_conntrack_zone *zone, * * Per-protocol part of tuple is initialized to the incoming packet. */ -static void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, - const struct nf_nat_range2 *range, - enum nf_nat_manip_type maniptype, - const struct nf_conn *ct) +void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, + const struct nf_nat_range2 *range, + enum nf_nat_manip_type maniptype, + const struct nf_conn *ct) { unsigned int range_size, min, max, i, attempts; __be16 *keyptr; @@ -586,6 +586,8 @@ nf_nat_setup_info(struct nf_conn *ct, &ct->tuplehash[IP_CT_DIR_REPLY].tuple); get_unique_tuple(&new_tuple, &curr_tuple, range, ct, maniptype); + if (range) + ct->range = *range; if (!nf_ct_tuple_equal(&new_tuple, &curr_tuple)) { struct nf_conntrack_tuple reply; diff --git a/net/netfilter/nf_nat_ftp.c b/net/netfilter/nf_nat_ftp.c index aace6768a64e..6794aa77162b 100644 --- a/net/netfilter/nf_nat_ftp.c +++ b/net/netfilter/nf_nat_ftp.c @@ -17,6 +17,10 @@ #include <net/netfilter/nf_conntrack_helper.h> #include <net/netfilter/nf_conntrack_expect.h> #include <linux/netfilter/nf_conntrack_ftp.h> +void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, + const struct nf_nat_range2 *range, + enum nf_nat_manip_type maniptype, + const struct nf_conn *ct); #define NAT_HELPER_NAME "ftp" @@ -74,6 +78,7 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb, struct nf_conn *ct = exp->master; char buffer[sizeof("|1||65535|") + INET6_ADDRSTRLEN]; unsigned int buflen; + int ret; pr_debug("type %i, off %u len %u\n", type, matchoff, matchlen); @@ -86,21 +91,14 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb, * this one. */ exp->expectfn = nf_nat_follow_master; - /* Try to get same port: if not, try to change it. */ - for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) { - int ret; - - exp->tuple.dst.u.tcp.port = htons(port); - ret = nf_ct_expect_related(exp, 0); - if (ret == 0) - break; - else if (ret != -EBUSY) { - port = 0; - break; - } - } + /* Find a port that matches the NAT rule */ + nf_nat_l4proto_unique_tuple(&exp->tuple, &ct->range, + dir ? NF_NAT_MANIP_SRC : NF_NAT_MANIP_DST, + ct); + port = ntohs(exp->tuple.dst.u.tcp.port); + ret = nf_ct_expect_related(exp, 0); - if (port == 0) { + if ((ret != 0 && ret != -EBUSY) || port == 0) { nf_ct_helper_log(skb, ct, "all ports in use"); return NF_DROP; } diff --git a/net/netfilter/nf_nat_helper.c b/net/netfilter/nf_nat_helper.c index a263505455fc..912bf50be58a 100644 --- a/net/netfilter/nf_nat_helper.c +++ b/net/netfilter/nf_nat_helper.c @@ -184,10 +184,14 @@ void nf_nat_follow_master(struct nf_conn *ct, /* This must be a fresh one. */ BUG_ON(ct->status & IPS_NAT_DONE_MASK); - /* Change src to where master sends to */ - range.flags = NF_NAT_RANGE_MAP_IPS; - range.min_addr = range.max_addr - = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + if (exp->master && !exp->dir) { + range = exp->master->range; + } else { + /* Change src to where master sends to */ + range.flags = NF_NAT_RANGE_MAP_IPS; + range.min_addr = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + range.max_addr = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + } nf_nat_setup_info(ct, &range, NF_NAT_MANIP_SRC); /* For DST manip, map port here to where it's expected. */ -- 2.32.0

2 years, 9 months

2
1
0 0

[RFC PATCH v1 0/2] Introduce XSAVE/XRSTOR self-test

by Pengfei Xu

The XSAVE feature set supports the saving and restoring of state components such as FPU, which is used for process context switching. In order to ensure that XSAVE works correctly, add XSAVE basic test for XSAVE architecture functionality. This patch set tests XSAVE/XRSTOR instructions on x86 platforms and verify if the XSAVE/XRSTOR works correctly during signal handling. Cases such as signal handling, process creation, other xstate(except FPU) tests for XSAVE check, etc. will be added to the Linux kernel self-test. If appropriate, it is even planned to add the [1] mentioned XSAVE issues reproduce and some XSAVE anomaly tests to the kernel self-test. [1]: https://lore.kernel.org/lkml/0000000000004c453905c30f8334@google.com/ Pengfei Xu (2): selftests/xsave: test basic XSAVE architecture functionality selftests/xsave: add xsave test during signal handling tools/testing/selftests/Makefile | 1 + tools/testing/selftests/xsave/.gitignore | 3 + tools/testing/selftests/xsave/Makefile | 6 + tools/testing/selftests/xsave/xsave_common.h | 246 ++++++++++++++++++ .../selftests/xsave/xsave_instruction.c | 83 ++++++ .../selftests/xsave/xsave_signal_handle.c | 184 +++++++++++++ 6 files changed, 523 insertions(+) create mode 100644 tools/testing/selftests/xsave/.gitignore create mode 100644 tools/testing/selftests/xsave/Makefile create mode 100644 tools/testing/selftests/xsave/xsave_common.h create mode 100644 tools/testing/selftests/xsave/xsave_instruction.c create mode 100644 tools/testing/selftests/xsave/xsave_signal_handle.c -- 2.20.1

2 years, 9 months

2
4
0 0

[PATCH] lib: use of kunit in test_parman.c

by José Aquiles Guedes de Rezende

Convert the parman test module to use the KUnit test framework. This makes thetest clearer by leveraging KUnit's assertion macros and test case definitions,as well as helps standardize on a testing framework. Co-developed-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: José Aquiles Guedes de Rezende <jjoseaquiless(a)gmail.com> --- lib/test_parman.c | 145 +++++++++++++++++++--------------------------- 1 file changed, 60 insertions(+), 85 deletions(-) diff --git a/lib/test_parman.c b/lib/test_parman.c index 35e32243693c..bd5010f0a412 100644 --- a/lib/test_parman.c +++ b/lib/test_parman.c @@ -41,6 +41,8 @@ #include <linux/err.h> #include <linux/random.h> #include <linux/parman.h> +#include <linux/sched.h> +#include <kunit/test.h> #define TEST_PARMAN_PRIO_SHIFT 7 /* defines number of prios for testing */ #define TEST_PARMAN_PRIO_COUNT BIT(TEST_PARMAN_PRIO_SHIFT) @@ -91,12 +93,14 @@ struct test_parman { static int test_parman_resize(void *priv, unsigned long new_count) { + struct kunit *test = current->kunit_test; struct test_parman *test_parman = priv; struct test_parman_item **prio_array; unsigned long old_count; prio_array = krealloc(test_parman->prio_array, ITEM_PTRS_SIZE(new_count), GFP_KERNEL); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, prio_array); if (new_count == 0) return 0; if (!prio_array) @@ -214,42 +218,39 @@ static void test_parman_items_fini(struct test_parman *test_parman) } } -static struct test_parman *test_parman_create(const struct parman_ops *ops) +static int test_parman_create(struct kunit *test) { struct test_parman *test_parman; int err; - test_parman = kzalloc(sizeof(*test_parman), GFP_KERNEL); - if (!test_parman) - return ERR_PTR(-ENOMEM); + test_parman = kunit_kzalloc(test, sizeof(*test_parman), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman); + err = test_parman_resize(test_parman, TEST_PARMAN_BASE_COUNT); - if (err) - goto err_resize; - test_parman->parman = parman_create(ops, test_parman); - if (!test_parman->parman) { - err = -ENOMEM; - goto err_parman_create; - } + KUNIT_ASSERT_EQ(test, err, 0); + + test_parman->parman = parman_create(&test_parman_lsort_ops, test_parman); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman->parman); + test_parman_rnd_init(test_parman); test_parman_prios_init(test_parman); test_parman_items_init(test_parman); test_parman->run_budget = TEST_PARMAN_RUN_BUDGET; - return test_parman; - -err_parman_create: - test_parman_resize(test_parman, 0); -err_resize: - kfree(test_parman); - return ERR_PTR(err); + test->priv = test_parman; + return 0; } -static void test_parman_destroy(struct test_parman *test_parman) +static void test_parman_destroy(struct kunit *test) { + struct test_parman *test_parman = test->priv; + + if (!test_parman) + return; test_parman_items_fini(test_parman); test_parman_prios_fini(test_parman); parman_destroy(test_parman->parman); test_parman_resize(test_parman, 0); - kfree(test_parman); + kunit_kfree(test, test_parman); } static bool test_parman_run_check_budgets(struct test_parman *test_parman) @@ -265,8 +266,9 @@ static bool test_parman_run_check_budgets(struct test_parman *test_parman) return true; } -static int test_parman_run(struct test_parman *test_parman) +static void test_parman_run(struct kunit *test) { + struct test_parman *test_parman = test->priv; unsigned int i = test_parman_rnd_get(test_parman); int err; @@ -281,8 +283,8 @@ static int test_parman_run(struct test_parman *test_parman) err = parman_item_add(test_parman->parman, &item->prio->parman_prio, &item->parman_item); - if (err) - return err; + KUNIT_ASSERT_EQ(test, err, 0); + test_parman->prio_array[item->parman_item.index] = item; test_parman->used_items++; } else { @@ -294,22 +296,19 @@ static int test_parman_run(struct test_parman *test_parman) } item->used = !item->used; } - return 0; } -static int test_parman_check_array(struct test_parman *test_parman, - bool gaps_allowed) +static void test_parman_check_array(struct kunit *test, bool gaps_allowed) { unsigned int last_unused_items = 0; unsigned long last_priority = 0; unsigned int used_items = 0; int i; + struct test_parman *test_parman = test->priv; - if (test_parman->prio_array_limit < TEST_PARMAN_BASE_COUNT) { - pr_err("Array limit is lower than the base count (%lu < %lu)\n", - test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); - return -EINVAL; - } + KUNIT_ASSERT_GE_MSG(test, test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT, + "Array limit is lower than the base count (%lu < %lu)\n", + test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); for (i = 0; i < test_parman->prio_array_limit; i++) { struct test_parman_item *item = test_parman->prio_array[i]; @@ -318,77 +317,53 @@ static int test_parman_check_array(struct test_parman *test_parman, last_unused_items++; continue; } - if (last_unused_items && !gaps_allowed) { - pr_err("Gap found in array even though they are forbidden\n"); - return -EINVAL; - } + + KUNIT_ASSERT_FALSE_MSG(test, last_unused_items && !gaps_allowed, + "Gap found in array even though they are forbidden\n"); last_unused_items = 0; used_items++; - if (item->prio->priority < last_priority) { - pr_err("Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n", - item->prio->priority, last_priority); - return -EINVAL; - } - last_priority = item->prio->priority; + KUNIT_ASSERT_GE_MSG(test, item->prio->priority, last_priority, + "Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n", + item->prio->priority, last_priority); - if (item->parman_item.index != i) { - pr_err("Item has different index in compare to where it actually is (%lu != %d)\n", - item->parman_item.index, i); - return -EINVAL; - } - } + last_priority = item->prio->priority; - if (used_items != test_parman->used_items) { - pr_err("Number of used items in array does not match (%u != %u)\n", - used_items, test_parman->used_items); - return -EINVAL; - } + KUNIT_ASSERT_EQ_MSG(test, item->parman_item.index, (unsigned long)i, + "Item has different index in compare to where it actually is (%lu != %d)\n", + item->parman_item.index, i); - if (last_unused_items >= TEST_PARMAN_RESIZE_STEP_COUNT) { - pr_err("Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n", - last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); - return -EINVAL; } - pr_info("Priority array check successful\n"); + KUNIT_ASSERT_EQ_MSG(test, used_items, test_parman->used_items, + "Number of used items in array does not match (%u != %u)\n", + used_items, test_parman->used_items); - return 0; + KUNIT_ASSERT_LT_MSG(test, (unsigned long)last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT, + "Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n", + last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); } -static int test_parman_lsort(void) +static void test_parman_lsort(struct kunit *test) { - struct test_parman *test_parman; - int err; - - test_parman = test_parman_create(&test_parman_lsort_ops); - if (IS_ERR(test_parman)) - return PTR_ERR(test_parman); - - err = test_parman_run(test_parman); - if (err) - goto out; - - err = test_parman_check_array(test_parman, false); - if (err) - goto out; -out: - test_parman_destroy(test_parman); - return err; + test_parman_run(test); + test_parman_check_array(test, false); } -static int __init test_parman_init(void) -{ - return test_parman_lsort(); -} +static struct kunit_case parman_test_case[] = { + KUNIT_CASE(test_parman_lsort), + {} +}; -static void __exit test_parman_exit(void) -{ -} +static struct kunit_suite parman_test_suite = { + .name = "parman", + .init = test_parman_create, + .exit = test_parman_destroy, + .test_cases = parman_test_case, +}; -module_init(test_parman_init); -module_exit(test_parman_exit); +kunit_test_suite(parman_test_suite); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Jiri Pirko <jiri(a)mellanox.com>"); -- 2.32.0

2 years, 9 months

4
3
0 0

[PATCH RESEND net-next 2/2] tc-testing: Add control-plane selftest for skbmod SKBMOD_F_ECN option

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added a new option, SKBMOD_F_ECN, to tc-skbmod(8). Add a control-plane selftest for it. Depends on kernel patch "net/sched: act_skbmod: Add SKBMOD_F_ECN option support", as well as iproute2 patch "tc/skbmod: Introduce SKBMOD_F_ECN option". Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- .../tc-testing/tc-tests/actions/skbmod.json | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json index 6eb4c4f97060..742f2290973e 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json @@ -417,5 +417,29 @@ "teardown": [ "$TC actions flush action skbmod" ] + }, + { + "id": "fe09", + "name": "Add skbmod action to mark ECN bits", + "category": [ + "actions", + "skbmod" + ], + "setup": [ + [ + "$TC actions flush action skbmod", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action skbmod ecn", + "expExitCode": "0", + "verifyCmd": "$TC actions get action skbmod index 1", + "matchPattern": "action order [0-9]*: skbmod pipe ecn", + "matchCount": "1", + "teardown": [ + "$TC actions flush action skbmod" + ] } ] -- 2.20.1

2 years, 9 months

1
0
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[PATCH v2 0/4] selftests: add a new test driver for sysfs

by Luis Chamberlain

This v2 rebases onto the latest linux-next tag, next-20210701. A few changes were needed, namely: 1) changes kernfs_init_failure_injection() to return int instead of void. On the latest linux-next we have a new static build check for this, so this mistake was captured when building. 2) I made kernfs_init_failure_injection static 3) lib/test_sysfs.c moved to the new blk_alloc_disk() added by Christoph as direct queue allocation is no longer supported, ie, blk_alloc_queue() is no longer exported. This work was done by Christoph in preparation to help make add_disk*() callers eventually return an error code and make the error handling much saner. Because of this same change blk_cleanup_queue() is no longer needed so we embrace the shiny new blk_cleanup_disk(). I've put this up on my linux-next git tree [0] under the branch named 20210701-sysfs-fix-races-v2. [0] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?… Luis Chamberlain (4): selftests: add tests_sysfs module kernfs: add initial failure injection support test_sysfs: add support to use kernfs failure injection test_sysfs: demonstrate deadlock fix .../fault-injection/fault-injection.rst | 22 + MAINTAINERS | 9 +- fs/kernfs/Makefile | 1 + fs/kernfs/failure-injection.c | 83 + fs/kernfs/file.c | 13 + fs/kernfs/kernfs-internal.h | 72 + include/linux/kernfs.h | 5 + lib/Kconfig.debug | 23 + lib/Makefile | 1 + lib/test_sysfs.c | 1027 ++++++++++++ tools/testing/selftests/sysfs/Makefile | 12 + tools/testing/selftests/sysfs/config | 5 + tools/testing/selftests/sysfs/sysfs.sh | 1376 +++++++++++++++++ 13 files changed, 2648 insertions(+), 1 deletion(-) create mode 100644 fs/kernfs/failure-injection.c create mode 100644 lib/test_sysfs.c create mode 100644 tools/testing/selftests/sysfs/Makefile create mode 100644 tools/testing/selftests/sysfs/config create mode 100755 tools/testing/selftests/sysfs/sysfs.sh -- 2.27.0

2 years, 9 months

2
12
0 0

[PATCH 0/2] xfrm/compat: Fix xfrm_spdattr_type_t copying

by Dmitry Safonov

Here is the fix for both 32=>64 and 64=>32 bit translators and a selftest that reproduced the issue. Big thanks to YueHaibing for fuzzing and reporting the issue, I really appreciate it! Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Herbert Xu <herbert(a)gondor.apana.org.au> Cc: Jakub Kicinski <kuba(a)kernel.org> Cc: Steffen Klassert <steffen.klassert(a)secunet.com> Cc: YueHaibing <yuehaibing(a)huawei.com> Cc: netdev(a)vger.kernel.org Dmitry Safonov (2): net/xfrm/compat: Copy xfrm_spdattr_type_t atributes selftests/net/ipsec: Add test for xfrm_spdattr_type_t net/xfrm/xfrm_compat.c | 49 ++++++++- tools/testing/selftests/net/ipsec.c | 165 +++++++++++++++++++++++++++- 2 files changed, 207 insertions(+), 7 deletions(-) base-commit: e73f0f0ee7541171d89f2e2491130c7771ba58d3 -- 2.32.0

2 years, 9 months

2
2
0 0

[PATCH net-next 2/2] tc-testing: Add control-plane selftest for skbmod SKBMOD_F_ECN option

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added a new option, SKBMOD_F_ECN, to tc-skbmod(8). Add a control-plane selftest for it. Depends on kernel patch "net/sched: act_skbmod: Add SKBMOD_F_ECN option support", as well as iproute2 patch "tc/skbmod: Introduce SKBMOD_F_ECN option". Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- Hi all, The corresponding iproute2-next patch is here: https://lore.kernel.org/netdev/20210721232053.39077-1-yepeilin.cs@gmail.com/ Thanks, Peilin Ye .../tc-testing/tc-tests/actions/skbmod.json | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json index 6eb4c4f97060..742f2290973e 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json @@ -417,5 +417,29 @@ "teardown": [ "$TC actions flush action skbmod" ] + }, + { + "id": "fe09", + "name": "Add skbmod action to mark ECN bits", + "category": [ + "actions", + "skbmod" + ], + "setup": [ + [ + "$TC actions flush action skbmod", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action skbmod ecn", + "expExitCode": "0", + "verifyCmd": "$TC actions get action skbmod index 1", + "matchPattern": "action order [0-9]*: skbmod pipe ecn", + "matchCount": "1", + "teardown": [ + "$TC actions flush action skbmod" + ] } ] -- 2.20.1

2 years, 9 months

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[PATCH v3] kunit: tool: add --kernel_args to allow setting module params

by Daniel Latypov

kunit.py currently does not make it possible for users to specify module parameters (/kernel arguments more generally) unless one directly tweaks the kunit.py code itself. This hasn't mattered much so far, but this would make it easier to port existing tests that expose module parameters over to KUnit and/or let current KUnit tests take advantage of them. Tested using an kunit internal parameter: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit \ --kernel_args=kunit.filter_glob=kunit_status ... Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- v1 -> v2: s/kernel_arg/kernel_args in documentation v2 -> v3: Fix up kunit_tool_test.py, add a test case. --- .../dev-tools/kunit/running_tips.rst | 10 ++++++++++ tools/testing/kunit/kunit.py | 16 +++++++++++---- tools/testing/kunit/kunit_tool_test.py | 20 +++++++++++++------ 3 files changed, 36 insertions(+), 10 deletions(-) diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 7d99386cf94a..ebaaa2764207 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -80,6 +80,16 @@ file ``.kunitconfig``, you can just pass in the dir, e.g. automagically, but tests could theoretically depend on incompatible options, so handling that would be tricky. +Setting kernel commandline parameters +------------------------------------- + +You can use ``--kernel_args`` to pass arbitrary kernel arguments, e.g. + +.. code-block:: bash + + $ ./tools/testing/kunit/kunit.py run --kernel_args=param=42 --kernel_args=param2=false + + Generating code coverage reports under UML ------------------------------------------ diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index be8d8d4a4e08..03f3bc406955 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -28,12 +28,13 @@ KunitBuildRequest = namedtuple('KunitBuildRequest', ['jobs', 'build_dir', 'alltests', 'make_options']) KunitExecRequest = namedtuple('KunitExecRequest', - ['timeout', 'build_dir', 'alltests', 'filter_glob']) + ['timeout', 'build_dir', 'alltests', + 'filter_glob', 'kernel_args']) KunitParseRequest = namedtuple('KunitParseRequest', ['raw_output', 'input_data', 'build_dir', 'json']) KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs', 'build_dir', 'alltests', 'filter_glob', - 'json', 'make_options']) + 'kernel_args', 'json', 'make_options']) KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0] @@ -92,6 +93,7 @@ def exec_tests(linux: kunit_kernel.LinuxSourceTree, kunit_parser.print_with_timestamp('Starting KUnit Kernel ...') test_start = time.time() result = linux.run_kernel( + args=request.kernel_args, timeout=None if request.alltests else request.timeout, filter_glob=request.filter_glob, build_dir=request.build_dir) @@ -150,7 +152,8 @@ def run_tests(linux: kunit_kernel.LinuxSourceTree, return build_result exec_request = KunitExecRequest(request.timeout, request.build_dir, - request.alltests, request.filter_glob) + request.alltests, request.filter_glob, + request.kernel_args) exec_result = exec_tests(linux, exec_request) if exec_result.status != KunitStatus.SUCCESS: return exec_result @@ -236,6 +239,9 @@ def add_exec_opts(parser) -> None: nargs='?', default='', metavar='filter_glob') + parser.add_argument('--kernel_args', + help='Kernel command-line parameters. Maybe be repeated', + action='append') def add_parse_opts(parser) -> None: parser.add_argument('--raw_output', help='don\'t format output from kernel', @@ -307,6 +313,7 @@ def main(argv, linux=None): cli_args.build_dir, cli_args.alltests, cli_args.filter_glob, + cli_args.kernel_args, cli_args.json, cli_args.make_options) result = run_tests(linux, request) @@ -361,7 +368,8 @@ def main(argv, linux=None): exec_request = KunitExecRequest(cli_args.timeout, cli_args.build_dir, cli_args.alltests, - cli_args.filter_glob) + cli_args.filter_glob, + cli_args.kernel_args) exec_result = exec_tests(linux, exec_request) parse_request = KunitParseRequest(cli_args.raw_output, exec_result.result, diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index bdae0e5f6197..93fda23f446c 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -346,7 +346,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 0) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=300) + args=None, build_dir='.kunit', filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_passes_args_pass(self): @@ -354,7 +354,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=300) + args=None, build_dir='.kunit', filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_exec_passes_args_fail(self): @@ -393,7 +393,7 @@ class KUnitMainTest(unittest.TestCase): timeout = 3453 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=timeout) + args=None, build_dir='.kunit', filter_glob='', timeout=timeout) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_timeout(self): @@ -401,7 +401,7 @@ class KUnitMainTest(unittest.TestCase): kunit.main(['run', '--timeout', str(timeout)], self.linux_source_mock) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=timeout) + args=None, build_dir='.kunit', filter_glob='', timeout=timeout) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_builddir(self): @@ -409,7 +409,7 @@ class KUnitMainTest(unittest.TestCase): kunit.main(['run', '--build_dir=.kunit'], self.linux_source_mock) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir=build_dir, filter_glob='', timeout=300) + args=None, build_dir=build_dir, filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_config_builddir(self): @@ -426,7 +426,7 @@ class KUnitMainTest(unittest.TestCase): build_dir = '.kunit' kunit.main(['exec', '--build_dir', build_dir], self.linux_source_mock) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir=build_dir, filter_glob='', timeout=300) + args=None, build_dir=build_dir, filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) @mock.patch.object(kunit_kernel, 'LinuxSourceTree') @@ -451,5 +451,13 @@ class KUnitMainTest(unittest.TestCase): cross_compile=None, qemu_config_path=None) + def test_run_kernel_args(self): + kunit.main(['run', '--kernel_args=a=1', '--kernel_args=b=2'], self.linux_source_mock) + self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) + self.linux_source_mock.run_kernel.assert_called_once_with( + args=['a=1','b=2'], build_dir='.kunit', filter_glob='', timeout=300) + self.print_mock.assert_any_call(StrContains('Testing complete.')) + + if __name__ == '__main__': unittest.main() base-commit: 8096acd7442e613fad0354fc8dfdb2003cceea0b -- 2.32.0.93.g670b81a890-goog

2 years, 9 months

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Linux-kselftest-mirror July 2021