kernel/linux.git/tools/testing/selftests/firmware, branch v5.15.3

selftests: firmware: Fix ignored return val of asprintf() warn

2021-07-21T14:11:42+00:00

Fix the following ingonred return val of asprintf() warn during build: cc -Wall -O2 fw_namespace.c -o ../tools/testing/selftests/firmware/fw_namespace fw_namespace.c: In function ‘main’: fw_namespace.c:132:2: warning: ignoring return value of ‘asprintf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 132 | asprintf(&fw_path, "/lib/firmware/%s", fw_name); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan Link: https://lore.kernel.org/r/20210708031827.51293-1-skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

firmware_loader: Remove unnecessary conversion to bool

2021-03-23T13:51:50+00:00

Fix the following coccicheck warnings: ./tools/testing/selftests/firmware/fw_namespace.c:98:54-59: WARNING: conversion to bool not needed here. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong Link: https://lore.kernel.org/r/1613639529-41139-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2020-10-15T22:14:32+00:00

Pull kselftest updates from Shuah Khan: - speed up headers_install done during selftest build - add generic make nesting support - add support to select individual tests: Selftests build/install generates run_kselftest.sh script to run selftests on a target system. Currently the script doesn't have support for selecting individual tests. Add support for it. With this enhancement, user can select test collections (or tests) individually. e.g: run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". * tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: doc: dev-tools: kselftest.rst: Update examples and paths selftests/run_kselftest.sh: Make each test individually selectable selftests: Extract run_kselftest.sh and generate stand-alone test list selftests: Add missing gitignore entries selftests: more general make nesting support selftests: use "$(MAKE)" instead of "make" for headers_install

test_firmware: Test partial read support

2020-10-05T11:37:04+00:00

Add additional hooks to test_firmware to pass in support for partial file read using request_firmware_into_buf(): buf_size: size of buffer to request firmware into partial: indicates that a partial file request is being made file_offset: to indicate offset into file to request Also update firmware selftests to use the new partial read test API. Signed-off-by: Scott Branden Co-developed-by: Kees Cook Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20201002173828.2099543-17-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman

selftests: Add missing gitignore entries

2020-09-23T16:19:25+00:00

Prevent them from polluting git status after building selftests. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Shuah Khan

selftest/firmware: Add selftest timeout in settings

2020-07-25T10:05:20+00:00

The firmware tests would always time out for me. Add a correct timeout, including details on how the value was reached. Additionally allow the test harness to skip comments in settings files and report how long a given timeout was. Reviewed-by: SeongJae Park Acked-by: Scott Branden Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20200724213640.389191-3-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman

selftests: firmware: Add firmware_request_platform tests

2020-03-20T13:54:04+00:00

Add tests cases for checking the new firmware_request_platform api. Signed-off-by: Hans de Goede Acked-by: Luis Chamberlain Link: https://lore.kernel.org/r/20200115163554.101315-7-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman

firmware_loader: load files from the mount namespace of init

2020-02-10T23:39:28+00:00

I have an experimental setup where almost every possible system service (even early startup ones) runs in separate namespace, using a dedicated, minimal file system. In process of minimizing the contents of the file systems with regards to modules and firmware files, I noticed that in my system, the firmware files are loaded from three different mount namespaces, those of systemd-udevd, init and systemd-networkd. The logic of the source namespace is not very clear, it seems to depend on the driver, but the namespace of the current process is used. So, this patch tries to make things a bit clearer and changes the loading of firmware files only from the mount namespace of init. This may also improve security, though I think that using firmware files as attack vector could be too impractical anyway. Later, it might make sense to make the mount namespace configurable, for example with a new file in /proc/sys/kernel/firmware_config/. That would allow a dedicated file system only for firmware files and those need not be present anywhere else. This configurability would make more sense if made also for kernel modules and /sbin/modprobe. Modules are already loaded from init namespace (usermodehelper uses kthreadd namespace) except when directly loaded by systemd-udevd. Instead of using the mount namespace of the current process to load firmware files, use the mount namespace of init process. Link: https://lore.kernel.org/lkml/bb46ebae-4746-90d9-ec5b-fce4c9328c86@gmail.com/ Link: https://lore.kernel.org/lkml/0e3f7653-c59d-9341-9db2-c88f5b988c68@gmail.com/ Signed-off-by: Topi Miettinen Link: https://lore.kernel.org/r/20200123125839.37168-1-toiwoton@gmail.com Signed-off-by: Greg Kroah-Hartman

selftests: firmware: Fix it to do root uid check and skip

2019-12-23T17:52:40+00:00

firmware attempts to load test modules that require root access and fail. Fix it to check for root uid and exit with skip code instead. Before this fix: selftests: firmware: fw_run_tests.sh modprobe: ERROR: could not insert 'test_firmware': Operation not permitted You must have the following enabled in your kernel: CONFIG_TEST_FIRMWARE=y CONFIG_FW_LOADER=y CONFIG_FW_LOADER_USER_HELPER=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y not ok 1 selftests: firmware: fw_run_tests.sh # SKIP With this fix: selftests: firmware: fw_run_tests.sh skip all tests: must be run as root not ok 1 selftests: firmware: fw_run_tests.sh # SKIP Signed-off-by: Shuah Khan Reviwed-by: Greg Kroah-Hartman Signed-off-by: Shuah Khan

selftests: firmware: Add request_firmware_into_buf tests

2019-09-04T11:31:28+00:00

Add tests cases for checking request_firmware_into_buf api. API was introduced into kernel with no testing present previously. Signed-off-by: Scott Branden Acked-by: Luis Chamberlain Acked-by: Shuah Khan Link: https://lore.kernel.org/r/20190822184005.901-3-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman