May 2025 - Linux-kselftest-mirror

[PATCH] kunit: Fix wrong parameter to kunit_deactivate_static_stub()

by Tzung-Bi Shih

kunit_deactivate_static_stub() accepts real_fn_addr instead of replacement_addr. In the case, it always passes NULL to kunit_deactivate_static_stub(). Fix it. Fixes: e047c5eaa763 ("kunit: Expose 'static stub' API to redirect functions") Signed-off-by: Tzung-Bi Shih <tzungbi(a)kernel.org> --- lib/kunit/static_stub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/kunit/static_stub.c b/lib/kunit/static_stub.c index 92b2cccd5e76..484fd85251b4 100644 --- a/lib/kunit/static_stub.c +++ b/lib/kunit/static_stub.c @@ -96,7 +96,7 @@ void __kunit_activate_static_stub(struct kunit *test, /* If the replacement address is NULL, deactivate the stub. */ if (!replacement_addr) { - kunit_deactivate_static_stub(test, replacement_addr); + kunit_deactivate_static_stub(test, real_fn_addr); return; } -- 2.49.0.1101.gccaa498523-goog

1 month, 2 weeks

2
2
0 0

[PATCH] kunit: Add test for static stub

by Tzung-Bi Shih

__kunit_activate_static_stub() works effectively as kunit_deactivate_static_stub() if `replacement_addr` is NULL. Add a test case for that. For running the test: $ ./tools/testing/kunit/kunit.py run \ --arch=x86_64 \ kunit_stub Signed-off-by: Tzung-Bi Shih <tzungbi(a)kernel.org> --- lib/kunit/kunit-test.c | 46 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c index d9c781c859fd..f8f567196ca9 100644 --- a/lib/kunit/kunit-test.c +++ b/lib/kunit/kunit-test.c @@ -8,6 +8,7 @@ #include "linux/gfp_types.h" #include <kunit/test.h> #include <kunit/test-bug.h> +#include <kunit/static_stub.h> #include <linux/device.h> #include <kunit/device.h> @@ -868,10 +869,53 @@ static struct kunit_suite kunit_current_test_suite = { .test_cases = kunit_current_test_cases, }; +static void kunit_stub_test(struct kunit *test) +{ + struct kunit fake_test; + const unsigned long fake_real_fn_addr = 0x1234; + const unsigned long fake_replacement_addr = 0x5678; + struct kunit_resource *res; + struct { + void *real_fn_addr; + void *replacement_addr; + } *stub_ctx; + + kunit_init_test(&fake_test, "kunit_stub_fake_test", NULL); + KUNIT_ASSERT_EQ(test, fake_test.status, KUNIT_SUCCESS); + KUNIT_ASSERT_EQ(test, list_count_nodes(&fake_test.resources), 0); + + __kunit_activate_static_stub(&fake_test, (void *)fake_real_fn_addr, + (void *)fake_replacement_addr); + KUNIT_ASSERT_EQ(test, fake_test.status, KUNIT_SUCCESS); + KUNIT_ASSERT_EQ(test, list_count_nodes(&fake_test.resources), 1); + + res = list_first_entry(&fake_test.resources, struct kunit_resource, node); + KUNIT_EXPECT_NOT_NULL(test, res); + + stub_ctx = res->data; + KUNIT_EXPECT_NOT_NULL(test, stub_ctx); + KUNIT_EXPECT_EQ(test, (unsigned long)stub_ctx->real_fn_addr, fake_real_fn_addr); + KUNIT_EXPECT_EQ(test, (unsigned long)stub_ctx->replacement_addr, fake_replacement_addr); + + __kunit_activate_static_stub(&fake_test, (void *)fake_real_fn_addr, NULL); + KUNIT_ASSERT_EQ(test, fake_test.status, KUNIT_SUCCESS); + KUNIT_ASSERT_EQ(test, list_count_nodes(&fake_test.resources), 0); +} + +static struct kunit_case kunit_stub_test_cases[] = { + KUNIT_CASE(kunit_stub_test), + {} +}; + +static struct kunit_suite kunit_stub_test_suite = { + .name = "kunit_stub", + .test_cases = kunit_stub_test_cases, +}; + kunit_test_suites(&kunit_try_catch_test_suite, &kunit_resource_test_suite, &kunit_log_test_suite, &kunit_status_test_suite, &kunit_current_test_suite, &kunit_device_test_suite, - &kunit_fault_test_suite); + &kunit_fault_test_suite, &kunit_stub_test_suite); MODULE_DESCRIPTION("KUnit test for core test infrastructure"); MODULE_LICENSE("GPL v2"); -- 2.49.0.1143.g0be31eac6b-goog

1 month, 2 weeks

1
0
0 0

[PATCHv6 net-next 0/2] wireguard: selftests: use nftables for testing

by Hangbin Liu

This patch set convert the wireguard selftest to nftables, as iptables is deparated and nftables is the default framework of most releases. v6: fix typo in patch 1/2. Update the description (Phil Sutter) v5: remove the counter in nft rules and link nft statically (Jason A. Donenfeld) v4: no update, just re-send v3: drop iptables directly (Jason A. Donenfeld) Also convert to using nft for qemu testing (Jason A. Donenfeld) v2: use one nft table for testing (Phil Sutter) Hangbin Liu (2): wireguard: selftests: convert iptables to nft wireguard: selftests: update to using nft for qemu test tools/testing/selftests/wireguard/netns.sh | 29 +++++++++------ .../testing/selftests/wireguard/qemu/Makefile | 36 ++++++++++++++----- .../selftests/wireguard/qemu/kernel.config | 7 ++-- 3 files changed, 49 insertions(+), 23 deletions(-) -- 2.46.0

1 month, 2 weeks

2
5
0 0

[PATCH v3 0/4] Introducing Hornet LSM

by Blaise Boscaccy

This patch series introduces the Hornet LSM. The goal of Hornet is to provide a signature verification mechanism for eBPF programs. eBPF has similar requirements to that of modules when it comes to loading: find symbol addresses, fix up ELF relocations, some struct field offset handling stuff called CO-RE (compile-once run-anywhere), and some other miscellaneous bookkeeping. During eBPF program compilation, pseudo-values get written to the immediate operands of instructions. During loading, those pseudo-values get rewritten with concrete addresses or data applicable to the currently running system, e.g., a kallsyms address or an fd for a map. This needs to happen before the instructions for a bpf program are loaded into the kernel via the bpf() syscall. Unlike modules, an in-kernel loader unfortunately doesn't exist. Typically, the instruction rewriting is done dynamically in userspace via libbpf. Since the relocations and instruction modifications are happening in userspace, and their values may change depending upon the running system, this breaks known signature verification mechanisms. Light skeleton programs were introduced in order to support early loading of eBPF programs along with user-mode drivers. They utilize a separate eBPF program that can load a target eBPF program and perform all necessary relocations in-kernel without needing a working userspace. Light skeletons were mentioned as a possible path forward for signature verification. Hornet takes a simple approach to light-skeleton-based eBPF signature verification. A PKCS#7 signature of a data buffer containing the raw instructions of an eBPF program, followed by the initial values of any maps used by the program is used. A utility script is provided to parse and extract the contents of autogenerated header files created via bpftool. That payload can then be signed and appended to the light skeleton executable. Maps are checked that they are frozen to prevent TOCTOU bugs where a sufficiently privileged user could rewrite map data between the calls to BPF_PROG_LOAD and BPF_PROG_RUN. Additionally, both sparse-array-based and fd_array_cnt-based map fd arrays are supported for signature verification. References: [1] https://lore.kernel.org/bpf/20220209054315.73833-1-alexei.starovoitov@gmail… [2] https://lore.kernel.org/bpf/CAADnVQ+wPK1KKZhCgb-Nnf0Xfjk8M1UpX5fnXC=cBzdEYb… Change list: - v2 -> v3 - Remove any and all usage of proprietary bpf APIs - Add optional systemd/pid1 whitelisting - Minor Makefile cleanup - Fixed buffer leak - Handled null current task - Made magic number required - Defensive checks against invalid buffer signature reads - v1 -> v2 - Jargon clarification, maintainer entry and a few cosmetic fixes Revisions: - v1 https://lore.kernel.org/bpf/20250321164537.16719-1-bboscaccy@linux.microsof… - v2 https://lore.kernel.org/linux-security-module/20250404215527.1563146-1-bbos… Blaise Boscaccy (4): security: Hornet LSM hornet: Introduce sign-ebpf hornet: Add a light skeleton data extractor script selftests/hornet: Add a selftest for the Hornet LSM Documentation/admin-guide/LSM/Hornet.rst | 65 +++ Documentation/admin-guide/LSM/index.rst | 1 + MAINTAINERS | 9 + crypto/asymmetric_keys/pkcs7_verify.c | 10 + include/linux/kernel_read_file.h | 1 + include/linux/verification.h | 1 + include/uapi/linux/lsm.h | 1 + scripts/Makefile | 1 + scripts/hornet/Makefile | 5 + scripts/hornet/extract-skel.sh | 29 ++ scripts/hornet/sign-ebpf.c | 411 ++++++++++++++++++ security/Kconfig | 3 +- security/Makefile | 1 + security/hornet/Kconfig | 24 + security/hornet/Makefile | 4 + security/hornet/hornet_lsm.c | 250 +++++++++++ security/selinux/hooks.c | 12 +- security/selinux/include/classmap.h | 2 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/hornet/Makefile | 58 +++ tools/testing/selftests/hornet/fail_loader.sh | 3 + tools/testing/selftests/hornet/frozen_skel.h | 393 +++++++++++++++++ tools/testing/selftests/hornet/loader.c | 22 + tools/testing/selftests/hornet/trivial.bpf.c | 33 ++ 24 files changed, 1336 insertions(+), 4 deletions(-) create mode 100644 Documentation/admin-guide/LSM/Hornet.rst create mode 100644 scripts/hornet/Makefile create mode 100755 scripts/hornet/extract-skel.sh create mode 100644 scripts/hornet/sign-ebpf.c create mode 100644 security/hornet/Kconfig create mode 100644 security/hornet/Makefile create mode 100644 security/hornet/hornet_lsm.c create mode 100644 tools/testing/selftests/hornet/Makefile create mode 100755 tools/testing/selftests/hornet/fail_loader.sh create mode 100644 tools/testing/selftests/hornet/frozen_skel.h create mode 100644 tools/testing/selftests/hornet/loader.c create mode 100644 tools/testing/selftests/hornet/trivial.bpf.c -- 2.48.1

1 month, 2 weeks

7
40
0 0

[PATCH v3] selftests: can: Import tst-filter from can-tests

by Felix Maurer

Tests for the can subsystem have been in the can-tests repository[1] so far. Start moving the tests to kernel selftests by importing the current tst-filter test. The test is now named test_raw_filter and is substantially updated to be more aligned with the kernel selftests, follow the coding style, and simplify the validation of received CAN frames. We also include documentation of the test design. The test verifies that the single filters on raw CAN sockets work as expected. We intend to import more tests from can-tests and add additional test cases in the future. The goal of moving the CAN selftests into the tree is to align the tests more closely with the kernel, improve testing of CAN in general, and to simplify running the tests automatically in the various kernel CI systems. [1]: https://github.com/linux-can/can-tests Signed-off-by: Felix Maurer <fmaurer(a)redhat.com> --- Notes: I keep netdev and its reviewers and maintainers in CC because of the changes to their paths in MAINTAINERS, even though Jakub acked them on v1. The change should be merged through linux-can-next and subsequent changes will not go to netdev anymore. I have removed the long form of the licenses in the beginning of the file during the import, as that is covered by the SPDX line anyways. The copyright is left as it was originally. Changes to v2: - link: https://lore.kernel.org/linux-can/dac10156eb550871c267bdfe199943e12610730b.… - Addressed the feedback by Vincent Changes to v1: - link: https://lore.kernel.org/linux-can/cover.1745323279.git.fmaurer@redhat.com/ - Squashed import and rewrite into a single commit - Simplified checking of the received flags - Pass the interface name through env (easier with the selftest framework than adding an argument) I have not updated test_raw_filter.sh to work with physical CAN interfaces so far because I don't have one to test this right now and don't think it's a priority for selftests for now. MAINTAINERS | 2 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/can/.gitignore | 2 + tools/testing/selftests/net/can/Makefile | 11 + .../selftests/net/can/test_raw_filter.c | 405 ++++++++++++++++++ .../selftests/net/can/test_raw_filter.sh | 37 ++ 6 files changed, 458 insertions(+) create mode 100644 tools/testing/selftests/net/can/.gitignore create mode 100644 tools/testing/selftests/net/can/Makefile create mode 100644 tools/testing/selftests/net/can/test_raw_filter.c create mode 100755 tools/testing/selftests/net/can/test_raw_filter.sh diff --git a/MAINTAINERS b/MAINTAINERS index 241ca9e260a2..55749b492ebb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5155,6 +5155,7 @@ F: include/uapi/linux/can/isotp.h F: include/uapi/linux/can/raw.h F: net/can/ F: net/sched/em_canid.c +F: tools/testing/selftests/net/can/ CAN-J1939 NETWORK LAYER M: Robin van der Gracht <robin(a)protonic.nl> @@ -16577,6 +16578,7 @@ X: net/ceph/ X: net/mac80211/ X: net/rfkill/ X: net/wireless/ +X: tools/testing/selftests/net/can/ NETWORKING [IPSEC] M: Steffen Klassert <steffen.klassert(a)secunet.com> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 8daac70c2f9d..e5c9ecd52b73 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -64,6 +64,7 @@ TARGETS += mqueue TARGETS += nci TARGETS += net TARGETS += net/af_unix +TARGETS += net/can TARGETS += net/forwarding TARGETS += net/hsr TARGETS += net/mptcp diff --git a/tools/testing/selftests/net/can/.gitignore b/tools/testing/selftests/net/can/.gitignore new file mode 100644 index 000000000000..764a53fc837f --- /dev/null +++ b/tools/testing/selftests/net/can/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +test_raw_filter diff --git a/tools/testing/selftests/net/can/Makefile b/tools/testing/selftests/net/can/Makefile new file mode 100644 index 000000000000..5b82e60a03e7 --- /dev/null +++ b/tools/testing/selftests/net/can/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 + +top_srcdir = ../../../../.. + +CFLAGS += -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES) + +TEST_PROGS := test_raw_filter.sh + +TEST_GEN_FILES := test_raw_filter + +include ../../lib.mk diff --git a/tools/testing/selftests/net/can/test_raw_filter.c b/tools/testing/selftests/net/can/test_raw_filter.c new file mode 100644 index 000000000000..4101c36390fd --- /dev/null +++ b/tools/testing/selftests/net/can/test_raw_filter.c @@ -0,0 +1,405 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +/* + * Copyright (c) 2011 Volkswagen Group Electronic Research + * All rights reserved. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <net/if.h> +#include <linux/if.h> + +#include <linux/can.h> +#include <linux/can/raw.h> + +#include "../../kselftest_harness.h" + +#define ID 0x123 + +char CANIF[IFNAMSIZ]; + +static int send_can_frames(int sock, int testcase) +{ + struct can_frame frame; + + frame.can_dlc = 1; + frame.data[0] = testcase; + + frame.can_id = ID; + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_RTR_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_EFF_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_EFF_FLAG | CAN_RTR_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + return 0; + +write_err: + perror("write"); + return 1; +} + +FIXTURE(can_filters) { + int sock; +}; + +FIXTURE_SETUP(can_filters) +{ + struct sockaddr_can addr; + struct ifreq ifr; + int recv_own_msgs = 1; + int s, ret; + + s = socket(PF_CAN, SOCK_RAW, CAN_RAW); + ASSERT_GE(s, 0) + TH_LOG("failed to create CAN_RAW socket: %d", errno); + + strncpy(ifr.ifr_name, CANIF, sizeof(ifr.ifr_name)); + ret = ioctl(s, SIOCGIFINDEX, &ifr); + ASSERT_GE(ret, 0) + TH_LOG("failed SIOCGIFINDEX: %d", errno); + + addr.can_family = AF_CAN; + addr.can_ifindex = ifr.ifr_ifindex; + + setsockopt(s, SOL_CAN_RAW, CAN_RAW_RECV_OWN_MSGS, + &recv_own_msgs, sizeof(recv_own_msgs)); + + ret = bind(s, (struct sockaddr *)&addr, sizeof(addr)); + ASSERT_EQ(ret, 0) + TH_LOG("failed bind socket: %d", errno); + + self->sock = s; +} + +FIXTURE_TEARDOWN(can_filters) +{ + close(self->sock); +} + +FIXTURE_VARIANT(can_filters) { + int testcase; + canid_t id; + canid_t mask; + int exp_num_rx; + canid_t exp_flags[]; +}; + +/* Receive all frames when filtering for the ID in standard frame format */ +FIXTURE_VARIANT_ADD(can_filters, base) { + .testcase = 1, + .id = ID, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Ignore EFF flag in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_eff) { + .testcase = 2, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Ignore RTR flag in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_rtr) { + .testcase = 3, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Ignore EFF and RTR flags in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_effrtr) { + .testcase = 4, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF frames when expecting no EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff) { + .testcase = 5, + .id = ID, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_RTR_FLAG, + }, +}; + +/* Receive only EFF frames when filter id and filter mask include EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_eff) { + .testcase = 6, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF frames when expecting no EFF flag, ignoring RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_rtr) { + .testcase = 7, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_RTR_FLAG, + }, +}; + +/* Receive only EFF frames when filter id and filter mask include EFF flag, + * ignoring RTR flag + */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_effrtr) { + .testcase = 8, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive no remote frames when filtering for no RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr) { + .testcase = 9, + .id = ID, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_EFF_FLAG, + }, +}; + +/* Receive no remote frames when filtering for no RTR flag, ignoring EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_eff) { + .testcase = 10, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_EFF_FLAG, + }, +}; + +/* Receive only remote frames when filter includes RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_rtr) { + .testcase = 11, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_RTR_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only remote frames when filter includes RTR flag, ignoring EFF + * flag + */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_effrtr) { + .testcase = 12, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_RTR_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF data frame when filtering for no flags */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr) { + .testcase = 13, + .id = ID, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + 0, + }, +}; + +/* Receive only EFF data frame when filtering for EFF but no RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_eff) { + .testcase = 14, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG, + }, +}; + +/* Receive only SFF remote frame when filtering for RTR but no EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_rtr) { + .testcase = 15, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_RTR_FLAG, + }, +}; + +/* Receive only EFF remote frame when filtering for EFF and RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_effrtr) { + .testcase = 16, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF data frame when filtering for no EFF flag and no RTR flag + * but based on EFF mask + */ +FIXTURE_VARIANT_ADD(can_filters, eff) { + .testcase = 17, + .id = ID, + .mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + 0, + }, +}; + +/* Receive only EFF data frame when filtering for EFF flag and no RTR flag but + * based on EFF mask + */ +FIXTURE_VARIANT_ADD(can_filters, eff_eff) { + .testcase = 18, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG, + }, +}; + +/* This test verifies that the raw CAN filters work, by checking if only frames + * with the expected set of flags are received. For each test case, the given + * filter (id and mask) is added and four CAN frames are sent with every + * combination of set/unset EFF/RTR flags. + */ +TEST_F(can_filters, test_filter) +{ + struct can_filter rfilter; + int ret; + + rfilter.can_id = variant->id; + rfilter.can_mask = variant->mask; + setsockopt(self->sock, SOL_CAN_RAW, CAN_RAW_FILTER, + &rfilter, sizeof(rfilter)); + + TH_LOG("filters: can_id = 0x%08X can_mask = 0x%08X", + rfilter.can_id, rfilter.can_mask); + + ret = send_can_frames(self->sock, variant->testcase); + ASSERT_EQ(ret, 0) + TH_LOG("failed to send CAN frames"); + + for (int i = 0; i <= variant->exp_num_rx; i++) { + struct can_frame frame; + struct timeval tv = { + .tv_sec = 0, + .tv_usec = 50000, /* 50ms timeout */ + }; + fd_set rdfs; + + FD_ZERO(&rdfs); + FD_SET(self->sock, &rdfs); + + ret = select(self->sock + 1, &rdfs, NULL, NULL, &tv); + ASSERT_GE(ret, 0) + TH_LOG("failed select for frame %d, err: %d)", i, errno); + + ret = FD_ISSET(self->sock, &rdfs); + if (i == variant->exp_num_rx) { + ASSERT_EQ(ret, 0) + TH_LOG("too many frames received"); + } else { + ASSERT_NE(ret, 0) + TH_LOG("too few frames received"); + + ret = read(self->sock, &frame, sizeof(frame)); + ASSERT_GE(ret, 0) + TH_LOG("failed to read frame %d, err: %d", i, errno); + + TH_LOG("rx: can_id = 0x%08X rx = %d", frame.can_id, i); + + ASSERT_EQ(ID, frame.can_id & CAN_SFF_MASK) + TH_LOG("received wrong can_id"); + ASSERT_EQ(variant->testcase, frame.data[0]) + TH_LOG("received wrong test case"); + + ASSERT_EQ(frame.can_id & ~CAN_ERR_MASK, + variant->exp_flags[i]) + TH_LOG("received unexpected flags"); + } + } +} + +int main(int argc, char **argv) +{ + char *ifname = getenv("CANIF"); + + if (!ifname) { + printf("CANIF environment variable must contain the test interface\n"); + return KSFT_FAIL; + } + + strncpy(CANIF, ifname, sizeof(CANIF) - 1); + + return test_harness_run(argc, argv); +} diff --git a/tools/testing/selftests/net/can/test_raw_filter.sh b/tools/testing/selftests/net/can/test_raw_filter.sh new file mode 100755 index 000000000000..2216134b431b --- /dev/null +++ b/tools/testing/selftests/net/can/test_raw_filter.sh @@ -0,0 +1,37 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ALL_TESTS=" + test_raw_filter +" + +net_dir=$(dirname $0)/.. +source $net_dir/lib.sh + +export CANIF=${CANIF:-"vcan0"} + +setup() +{ + ip link add name $CANIF type vcan || exit $ksft_skip + ip link set dev $CANIF up + pwd +} + +cleanup() +{ + ip link delete $CANIF +} + +test_raw_filter() +{ + ./test_raw_filter + check_err $? + log_test "test_raw_filter" +} + +trap cleanup EXIT +setup + +tests_run + +exit $EXIT_STATUS -- 2.49.0

1 month, 2 weeks

2
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[PATCH v2] selftests: can: Import tst-filter from can-tests

by Felix Maurer

Tests for the can subsystem have been in the can-tests repository[1] so far. Start moving the tests to kernel selftests by importing the current tst-filter test. The test is now named test_raw_filter and is substantially updated to be more aligned with the kernel selftests, follow the coding style, and simplify the validation of received CAN frames. We also include documentation of the test design. The test verifies that the single filters on raw CAN sockets work as expected. We intend to import more tests from can-tests and add additional test cases in the future. The goal of moving the CAN selftests into the tree is to align the tests more closely with the kernel, improve testing of CAN in general, and to simplify running the tests automatically in the various kernel CI systems. [1]: https://github.com/linux-can/can-tests Signed-off-by: Felix Maurer <fmaurer(a)redhat.com> --- Notes: I keep netdev and its reviewers and maintainers in CC because of the changes to their paths in MAINTAINERS, even though Jakub acked them on v1. The change should be merged through linux-can-next and subsequent changes will not go to netdev anymore. I have removed the long form of the licenses in the beginning of the file during the import, as that is covered by the SPDX line anyways. The copyright is left as it was originally. Changes to v1: - link: https://lore.kernel.org/linux-can/cover.1745323279.git.fmaurer@redhat.com/ - Squashed import and rewrite into a single commit - Simplified checking of the received flags - Pass the interface name through env (easier with the selftest framework than adding an argument) I have not updated test_raw_filter.sh to work with physical CAN interfaces so far because I don't have one to test this right now and don't think it's a priority for selftests for now. MAINTAINERS | 2 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/can/.gitignore | 2 + tools/testing/selftests/net/can/Makefile | 11 + .../selftests/net/can/test_raw_filter.c | 395 ++++++++++++++++++ .../selftests/net/can/test_raw_filter.sh | 37 ++ 6 files changed, 448 insertions(+) create mode 100644 tools/testing/selftests/net/can/.gitignore create mode 100644 tools/testing/selftests/net/can/Makefile create mode 100644 tools/testing/selftests/net/can/test_raw_filter.c create mode 100755 tools/testing/selftests/net/can/test_raw_filter.sh diff --git a/MAINTAINERS b/MAINTAINERS index 241ca9e260a2..55749b492ebb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5155,6 +5155,7 @@ F: include/uapi/linux/can/isotp.h F: include/uapi/linux/can/raw.h F: net/can/ F: net/sched/em_canid.c +F: tools/testing/selftests/net/can/ CAN-J1939 NETWORK LAYER M: Robin van der Gracht <robin(a)protonic.nl> @@ -16577,6 +16578,7 @@ X: net/ceph/ X: net/mac80211/ X: net/rfkill/ X: net/wireless/ +X: tools/testing/selftests/net/can/ NETWORKING [IPSEC] M: Steffen Klassert <steffen.klassert(a)secunet.com> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 8daac70c2f9d..e5c9ecd52b73 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -64,6 +64,7 @@ TARGETS += mqueue TARGETS += nci TARGETS += net TARGETS += net/af_unix +TARGETS += net/can TARGETS += net/forwarding TARGETS += net/hsr TARGETS += net/mptcp diff --git a/tools/testing/selftests/net/can/.gitignore b/tools/testing/selftests/net/can/.gitignore new file mode 100644 index 000000000000..764a53fc837f --- /dev/null +++ b/tools/testing/selftests/net/can/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +test_raw_filter diff --git a/tools/testing/selftests/net/can/Makefile b/tools/testing/selftests/net/can/Makefile new file mode 100644 index 000000000000..5b82e60a03e7 --- /dev/null +++ b/tools/testing/selftests/net/can/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 + +top_srcdir = ../../../../.. + +CFLAGS += -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES) + +TEST_PROGS := test_raw_filter.sh + +TEST_GEN_FILES := test_raw_filter + +include ../../lib.mk diff --git a/tools/testing/selftests/net/can/test_raw_filter.c b/tools/testing/selftests/net/can/test_raw_filter.c new file mode 100644 index 000000000000..3c0e43cab1e8 --- /dev/null +++ b/tools/testing/selftests/net/can/test_raw_filter.c @@ -0,0 +1,395 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +/* + * Copyright (c) 2011 Volkswagen Group Electronic Research + * All rights reserved. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <net/if.h> +#include <linux/if.h> + +#include <linux/can.h> +#include <linux/can/raw.h> + +#include "../../kselftest_harness.h" + +#define ID 0x123 + +char VCANIF[IFNAMSIZ]; + +static int send_can_frames(int sock, int testcase) +{ + struct can_frame frame; + + frame.can_dlc = 1; + frame.data[0] = testcase; + + frame.can_id = ID; + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_RTR_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_EFF_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + frame.can_id = (ID | CAN_EFF_FLAG | CAN_RTR_FLAG); + if (write(sock, &frame, sizeof(frame)) < 0) + goto write_err; + + return 0; + +write_err: + perror("write"); + return 1; + +} + +FIXTURE(can_filters) { + int sock; +}; + +FIXTURE_SETUP(can_filters) +{ + struct sockaddr_can addr; + struct ifreq ifr; + int recv_own_msgs = 1; + int s, ret; + + s = socket(PF_CAN, SOCK_RAW, CAN_RAW); + ASSERT_LT(0, s) + TH_LOG("failed to create CAN_RAW socket: %d", errno); + + strncpy(ifr.ifr_name, VCANIF, sizeof(ifr.ifr_name)); + ret = ioctl(s, SIOCGIFINDEX, &ifr); + ASSERT_LE(0, ret) + TH_LOG("failed SIOCGIFINDEX: %d", errno); + + addr.can_family = AF_CAN; + addr.can_ifindex = ifr.ifr_ifindex; + + setsockopt(s, SOL_CAN_RAW, CAN_RAW_RECV_OWN_MSGS, + &recv_own_msgs, sizeof(recv_own_msgs)); + + ret = bind(s, (struct sockaddr *)&addr, sizeof(addr)); + ASSERT_EQ(0, ret) + TH_LOG("failed bind socket: %d", errno); + + self->sock = s; +} + +FIXTURE_TEARDOWN(can_filters) +{ + close(self->sock); +} + +FIXTURE_VARIANT(can_filters) { + int testcase; + canid_t id; + canid_t mask; + int exp_num_rx; + canid_t exp_flags[]; +}; +#define T_EFF (CAN_EFF_FLAG >> 28) +#define T_RTR (CAN_RTR_FLAG >> 28) + +/* Receive all frames when filtering for the ID in standard frame format */ +FIXTURE_VARIANT_ADD(can_filters, base) { + .testcase = 1, + .id = ID, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; +/* Ignore EFF flag in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_eff) { + .testcase = 2, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; +/* Ignore RTR flag in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_rtr) { + .testcase = 3, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; +/* Ignore EFF and RTR flags in filter ID if not covered by filter mask */ +FIXTURE_VARIANT_ADD(can_filters, base_effrtr) { + .testcase = 4, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK, + .exp_num_rx = 4, + .exp_flags = { + 0, + CAN_RTR_FLAG, + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF frames when expecting no EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff) { + .testcase = 5, + .id = ID, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_RTR_FLAG, + }, +}; +/* Receive only EFF frames when filter id and filter mask include EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_eff) { + .testcase = 6, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; +/* Receive only SFF frames when expecting no EFF flag, ignoring RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_rtr) { + .testcase = 7, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_RTR_FLAG, + }, +}; +/* Receive only EFF frames when filter id and filter mask include EFF flag, + * ignoring RTR flag + */ +FIXTURE_VARIANT_ADD(can_filters, filter_eff_effrtr) { + .testcase = 8, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_EFF_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive no remote frames when filtering for no RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr) { + .testcase = 9, + .id = ID, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_EFF_FLAG, + }, +}; +/* Receive no remote frames when filtering for no RTR flag, ignoring EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_eff) { + .testcase = 10, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + 0, + CAN_EFF_FLAG, + }, +}; +/* Receive only remote frames when filter includes RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_rtr) { + .testcase = 11, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_RTR_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; +/* Receive only remote frames when filter includes RTR flag, ignoring EFF + * flag + */ +FIXTURE_VARIANT_ADD(can_filters, filter_rtr_effrtr) { + .testcase = 12, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_RTR_FLAG, + .exp_num_rx = 2, + .exp_flags = { + CAN_RTR_FLAG, + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF data frame when filtering for no flags */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr) { + .testcase = 13, + .id = ID, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + 0, + }, +}; +/* Receive only EFF data frame when filtering for EFF but no RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_eff) { + .testcase = 14, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG, + }, +}; +/* Receive only SFF remote frame when filtering for RTR but no EFF flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_rtr) { + .testcase = 15, + .id = ID | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_RTR_FLAG, + }, +}; +/* Receive only EFF remote frame when filtering for EFF and RTR flag */ +FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_effrtr) { + .testcase = 16, + .id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG, + .mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG | CAN_RTR_FLAG, + }, +}; + +/* Receive only SFF data frame when filtering for no EFF flag and no RTR flag + * but based on EFF mask + */ +FIXTURE_VARIANT_ADD(can_filters, eff) { + .testcase = 17, + .id = ID, + .mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + 0, + }, +}; +/* Receive only EFF data frame when filtering for EFF flag and no RTR flag but + * based on EFF mask + */ +FIXTURE_VARIANT_ADD(can_filters, eff_eff) { + .testcase = 18, + .id = ID | CAN_EFF_FLAG, + .mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG, + .exp_num_rx = 1, + .exp_flags = { + CAN_EFF_FLAG, + }, +}; + +/* This test verifies that the raw CAN filters work, by checking if only frames + * with the expected set of flags are received. For each test case, the given + * filter (id and mask) is added and four CAN frames are sent with every + * combination of set/unset EFF/RTR flags. + */ +TEST_F(can_filters, test_filter) +{ + struct can_filter rfilter; + int ret; + + rfilter.can_id = variant->id; + rfilter.can_mask = variant->mask; + setsockopt(self->sock, SOL_CAN_RAW, CAN_RAW_FILTER, + &rfilter, sizeof(rfilter)); + + TH_LOG("filters: can_id = 0x%08X can_mask = 0x%08X", + rfilter.can_id, rfilter.can_mask); + + ret = send_can_frames(self->sock, variant->testcase); + ASSERT_EQ(0, ret) + TH_LOG("failed to send CAN frames"); + + for (int i = 0; i <= variant->exp_num_rx; i++) { + struct can_frame frame; + struct timeval tv; + fd_set rdfs; + + FD_ZERO(&rdfs); + FD_SET(self->sock, &rdfs); + tv.tv_sec = 0; + tv.tv_usec = 50000; /* 50ms timeout */ + + ret = select(self->sock + 1, &rdfs, NULL, NULL, &tv); + ASSERT_LE(0, ret) + TH_LOG("failed select for frame %d, err: %d)", i, errno); + + ret = FD_ISSET(self->sock, &rdfs); + if (i == variant->exp_num_rx) { + ASSERT_EQ(0, ret) + TH_LOG("too many frames received"); + } else { + ASSERT_NE(0, ret) + TH_LOG("too few frames received"); + + ret = read(self->sock, &frame, sizeof(frame)); + ASSERT_LE(0, ret) + TH_LOG("failed to read frame %d, err: %d", i, errno); + + TH_LOG("rx: can_id = 0x%08X rx = %d", frame.can_id, i); + + ASSERT_EQ(ID, frame.can_id & CAN_SFF_MASK) + TH_LOG("received wrong can_id"); + ASSERT_EQ(variant->testcase, frame.data[0]) + TH_LOG("received wrong test case"); + + ASSERT_EQ(frame.can_id & ~CAN_ERR_MASK, + variant->exp_flags[i]) + TH_LOG("received unexpected flags"); + + } + } +} + +int main(int argc, char **argv) +{ + char *ifname = getenv("VCANIF"); + + if (ifname) { + strncpy(VCANIF, ifname, sizeof(VCANIF) - 1); + } else { + printf("VCANIF environment variable must contain the test interface\n"); + return KSFT_FAIL; + } + + return test_harness_run(argc, argv); +} diff --git a/tools/testing/selftests/net/can/test_raw_filter.sh b/tools/testing/selftests/net/can/test_raw_filter.sh new file mode 100755 index 000000000000..95f45c3c824b --- /dev/null +++ b/tools/testing/selftests/net/can/test_raw_filter.sh @@ -0,0 +1,37 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ALL_TESTS=" + test_raw_filter +" + +net_dir=$(dirname $0)/.. +source $net_dir/lib.sh + +export VCANIF="vcan0" + +setup() +{ + ip link add name $VCANIF type vcan || exit $ksft_skip + ip link set dev $VCANIF up + pwd +} + +cleanup() +{ + ip link delete $VCANIF +} + +test_raw_filter() +{ + ./test_raw_filter + check_err $? + log_test "test_raw_filter" +} + +trap cleanup EXIT +setup + +tests_run + +exit $EXIT_STATUS -- 2.49.0

1 month, 2 weeks

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[PATCH] kselftest/pidfd: Make all test functions return int

by Ivan Pravdin

The pidfd_test suite currently defines six test functions, four of which return an int, while the remaining two return void. This is inconsistent. To address this, convert the two void-returning test functions to return int, bringing them in line with the rest. For now, the functions always return 0. Fixes: 740378dc7834b ("pidfd: add polling selftests") Signed-off-by: Ivan Pravdin <ipravdin.official(a)gmail.com> --- tools/testing/selftests/pidfd/pidfd_test.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c index fcd85cad9f18..645ac8e35033 100644 --- a/tools/testing/selftests/pidfd/pidfd_test.c +++ b/tools/testing/selftests/pidfd/pidfd_test.c @@ -492,7 +492,7 @@ static int child_poll_exec_test(void *args) return 0; } -static void test_pidfd_poll_exec(int use_waitpid) +static int test_pidfd_poll_exec(int use_waitpid) { int pid, pidfd = 0; int status, ret; @@ -528,6 +528,7 @@ static void test_pidfd_poll_exec(int use_waitpid) ksft_exit_fail_msg("%s test: Failed\n", test_name); else ksft_test_result_pass("%s test: Passed\n", test_name); + return 0; } static void *test_pidfd_poll_leader_exit_thread(void *priv) @@ -558,7 +559,7 @@ static int child_poll_leader_exit_test(void *args) exit(0); } -static void test_pidfd_poll_leader_exit(int use_waitpid) +static int test_pidfd_poll_leader_exit(int use_waitpid) { int pid, pidfd = 0; int status, ret = 0; @@ -608,6 +609,7 @@ static void test_pidfd_poll_leader_exit(int use_waitpid) ksft_exit_fail_msg("%s test: Failed\n", test_name); else ksft_test_result_pass("%s test: Passed\n", test_name); + return 0; } int main(int argc, char **argv) -- 2.45.2

1 month, 2 weeks

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[PATCH] kselftest/pidfd: Fix typos in comments

by Ivan Pravdin

Fix typos in comments in pidfd_info_test.c Signed-off-by: Ivan Pravdin <ipravdin.official(a)gmail.com> --- tools/testing/selftests/pidfd/pidfd_info_test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c index 1758a1b0457b..53cb429f5fa0 100644 --- a/tools/testing/selftests/pidfd/pidfd_info_test.c +++ b/tools/testing/selftests/pidfd/pidfd_info_test.c @@ -229,7 +229,7 @@ static void *pidfd_info_pause_thread(void *arg) close(ipc_socket); - /* Sleep untill we're killed. */ + /* Sleep until we're killed. */ pause(); return NULL; } @@ -518,7 +518,7 @@ TEST_F(pidfd_info, thread_group_exec) EXPECT_EQ(sys_pidfd_send_signal(pidfd_leader, SIGKILL, NULL, 0), 0); /* - * Afte the exec we're dealing with an empty thread-group so now + * After the exec we're dealing with an empty thread-group so now * we must see an exit notification on the thread-specific pidfd * for the thread-group leader as there's no subthread that can * revive the struct pid. @@ -665,7 +665,7 @@ TEST_F(pidfd_info, thread_group_exec_thread) EXPECT_EQ(sys_pidfd_send_signal(pidfd_leader, SIGKILL, NULL, 0), 0); /* - * Afte the exec we're dealing with an empty thread-group so now + * After the exec we're dealing with an empty thread-group so now * we must see an exit notification on the thread-specific pidfd * for the thread-group leader as there's no subthread that can * revive the struct pid. -- 2.45.2

1 month, 2 weeks

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[PATCH net v2] selftests: net: validate team flags propagation

by Stanislav Fomichev

Cover three recent cases: 1. missing ops locking for the lowers during netdev_sync_lower_features 2. missing locking for dev_set_promiscuity (plus netdev_ops_assert_locked with a comment on why/when it's needed) 3. rcu lock during team_change_rx_flags Verified that each one triggers when the respective fix is reverted. Not sure about the placement, but since it all relies on teaming, added to the teaming directory. One ugly bit is that I add NETIF_F_LRO to netdevsim; there is no way to trigger netdev_sync_lower_features without it. Signed-off-by: Stanislav Fomichev <stfomichev(a)gmail.com> --- v2: fix cleanup and wrong exit code (Jakub) --- drivers/net/netdevsim/netdev.c | 2 + net/core/dev.c | 10 ++- .../selftests/drivers/net/team/Makefile | 2 +- .../testing/selftests/drivers/net/team/config | 1 + .../selftests/drivers/net/team/propagation.sh | 80 +++++++++++++++++++ 5 files changed, 93 insertions(+), 2 deletions(-) create mode 100755 tools/testing/selftests/drivers/net/team/propagation.sh diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c index 0e0321a7ddd7..3bd1f8cffee8 100644 --- a/drivers/net/netdevsim/netdev.c +++ b/drivers/net/netdevsim/netdev.c @@ -879,11 +879,13 @@ static void nsim_setup(struct net_device *dev) NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | + NETIF_F_LRO | NETIF_F_TSO; dev->hw_features |= NETIF_F_HW_TC | NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | + NETIF_F_LRO | NETIF_F_TSO; dev->max_mtu = ETH_MAX_MTU; dev->xdp_features = NETDEV_XDP_ACT_HW_OFFLOAD; diff --git a/net/core/dev.c b/net/core/dev.c index 0d891634c692..4debd4b8e0f5 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -9188,8 +9188,16 @@ static int __dev_set_promiscuity(struct net_device *dev, int inc, bool notify) dev_change_rx_flags(dev, IFF_PROMISC); } - if (notify) + if (notify) { + /* The ops lock is only required to ensure consistent locking + * for `NETDEV_CHANGE` notifiers. This function is sometimes + * called without the lock, even for devices that are ops + * locked, such as in `dev_uc_sync_multiple` when using + * bonding or teaming. + */ + netdev_ops_assert_locked(dev); __dev_notify_flags(dev, old_flags, IFF_PROMISC, 0, NULL); + } return 0; } diff --git a/tools/testing/selftests/drivers/net/team/Makefile b/tools/testing/selftests/drivers/net/team/Makefile index 2d5a76d99181..eaf6938f100e 100644 --- a/tools/testing/selftests/drivers/net/team/Makefile +++ b/tools/testing/selftests/drivers/net/team/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for net selftests -TEST_PROGS := dev_addr_lists.sh +TEST_PROGS := dev_addr_lists.sh propagation.sh TEST_INCLUDES := \ ../bonding/lag_lib.sh \ diff --git a/tools/testing/selftests/drivers/net/team/config b/tools/testing/selftests/drivers/net/team/config index b5e3a3aad4bf..636b3525b679 100644 --- a/tools/testing/selftests/drivers/net/team/config +++ b/tools/testing/selftests/drivers/net/team/config @@ -1,5 +1,6 @@ CONFIG_DUMMY=y CONFIG_IPV6=y CONFIG_MACVLAN=y +CONFIG_NETDEVSIM=m CONFIG_NET_TEAM=y CONFIG_NET_TEAM_MODE_LOADBALANCE=y diff --git a/tools/testing/selftests/drivers/net/team/propagation.sh b/tools/testing/selftests/drivers/net/team/propagation.sh new file mode 100755 index 000000000000..4bea75b79878 --- /dev/null +++ b/tools/testing/selftests/drivers/net/team/propagation.sh @@ -0,0 +1,80 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +set -e + +NSIM_LRO_ID=$((256 + RANDOM % 256)) +NSIM_LRO_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_LRO_ID + +NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device +NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device + +cleanup() +{ + set +e + ip link del dummyteam &>/dev/null + ip link del team0 &>/dev/null + echo $NSIM_LRO_ID > $NSIM_DEV_SYS_DEL + modprobe -r netdevsim +} + +# Trigger LRO propagation to the lower. +# https://lore.kernel.org/netdev/aBvOpkIoxcr9PfDg@mini-arch/ +team_lro() +{ + # using netdevsim because it supports NETIF_F_LRO + NSIM_LRO_NAME=$(find $NSIM_LRO_SYS/net -maxdepth 1 -type d ! \ + -path $NSIM_LRO_SYS/net -exec basename {} \;) + + ip link add name team0 type team + ip link set $NSIM_LRO_NAME down + ip link set dev $NSIM_LRO_NAME master team0 + ip link set team0 up + ethtool -K team0 large-receive-offload off + + ip link del team0 +} + +# Trigger promisc propagation to the lower during IFLA_MASTER. +# https://lore.kernel.org/netdev/20250506032328.3003050-1-sdf@fomichev.me/ +team_promisc() +{ + ip link add name dummyteam type dummy + ip link add name team0 type team + ip link set dummyteam down + ip link set team0 promisc on + ip link set dev dummyteam master team0 + ip link set team0 up + + ip link del team0 + ip link del dummyteam +} + +# Trigger promisc propagation to the lower via netif_change_flags (aka +# ndo_change_rx_flags). +# https://lore.kernel.org/netdev/20250514220319.3505158-1-stfomichev@gmail.co… +team_change_flags() +{ + ip link add name dummyteam type dummy + ip link add name team0 type team + ip link set dummyteam down + ip link set dev dummyteam master team0 + ip link set team0 up + ip link set team0 promisc on + + # Make sure we can add more L2 addresses without any issues. + ip link add link team0 address 00:00:00:00:00:01 team0.1 type macvlan + ip link set team0.1 up + + ip link del team0.1 + ip link del team0 + ip link del dummyteam +} + +trap cleanup EXIT +modprobe netdevsim || : +echo $NSIM_LRO_ID > $NSIM_DEV_SYS_NEW +udevadm settle +team_lro +team_promisc +team_change_flags -- 2.49.0

1 month, 2 weeks

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[PATCH] selftests: nci: Fix "Electrnoics" to "Electronics"

by Sumanth Gavini

Fix misspelling reported by codespell Signed-off-by: Sumanth Gavini <sumanth.gavini(a)yahoo.com> --- tools/testing/selftests/nci/nci_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c index 1562aa7d60b0..6dec59d64083 100644 --- a/tools/testing/selftests/nci/nci_dev.c +++ b/tools/testing/selftests/nci/nci_dev.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (C) 2021 Samsung Electrnoics + * Copyright (C) 2021 Samsung Electronics * Bongsu Jeon <bongsu.jeon(a)samsung.com> * * Test code for nci -- 2.43.0

1 month, 2 weeks

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