Файловый менеджер

Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/tools/testing/selftests/firmware/fw_lib.sh

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#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # Library of helpers for test scripts. set -e DIR=/sys/devices/virtual/misc/test_firmware PROC_CONFIG="/proc/config.gz" TEST_DIR=$(dirname $0) # We need to load a different file to test request_firmware_into_buf # I believe the issue is firmware loaded cached vs. non-cached # with same filename is bungled. # To reproduce rename this to test-firmware.bin TEST_FIRMWARE_INTO_BUF_FILENAME=test-firmware-into-buf.bin # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 print_reqs_exit() { echo "You must have the following enabled in your kernel:" >&2 cat $TEST_DIR/config >&2 exit $ksft_skip } test_modprobe() { if [ ! -d $DIR ]; then print_reqs_exit fi } check_mods() { local uid=$(id -u) if [ $uid -ne 0 ]; then echo "skip all tests: must be run as root" >&2 exit $ksft_skip fi trap "test_modprobe" EXIT if [ ! -d $DIR ]; then modprobe test_firmware fi if [ ! -f $PROC_CONFIG ]; then if modprobe configs 2>/dev/null; then echo "Loaded configs module" if [ ! -f $PROC_CONFIG ]; then echo "You must have the following enabled in your kernel:" >&2 cat $TEST_DIR/config >&2 echo "Resorting to old heuristics" >&2 fi else echo "Failed to load configs module, using old heuristics" >&2 fi fi } check_setup() { HAS_FW_LOADER_USER_HELPER="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)" HAS_FW_LOADER_USER_HELPER_FALLBACK="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)" HAS_FW_LOADER_COMPRESS="$(kconfig_has CONFIG_FW_LOADER_COMPRESS=y)" PROC_FW_IGNORE_SYSFS_FALLBACK="0" PROC_FW_FORCE_SYSFS_FALLBACK="0" if [ -z $PROC_SYS_DIR ]; then PROC_SYS_DIR="/proc/sys/kernel" fi FW_PROC="${PROC_SYS_DIR}/firmware_config" FW_FORCE_SYSFS_FALLBACK="$FW_PROC/force_sysfs_fallback" FW_IGNORE_SYSFS_FALLBACK="$FW_PROC/ignore_sysfs_fallback" if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then PROC_FW_FORCE_SYSFS_FALLBACK="$(cat $FW_FORCE_SYSFS_FALLBACK)" fi if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then PROC_FW_IGNORE_SYSFS_FALLBACK="$(cat $FW_IGNORE_SYSFS_FALLBACK)" fi if [ "$PROC_FW_FORCE_SYSFS_FALLBACK" = "1" ]; then HAS_FW_LOADER_USER_HELPER="yes" HAS_FW_LOADER_USER_HELPER_FALLBACK="yes" fi if [ "$PROC_FW_IGNORE_SYSFS_FALLBACK" = "1" ]; then HAS_FW_LOADER_USER_HELPER_FALLBACK="no" HAS_FW_LOADER_USER_HELPER="no" fi if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then OLD_TIMEOUT="$(cat /sys/class/firmware/timeout)" fi OLD_FWPATH="$(cat /sys/module/firmware_class/parameters/path)" if [ "$HAS_FW_LOADER_COMPRESS" = "yes" ]; then if ! which xz 2> /dev/null > /dev/null; then HAS_FW_LOADER_COMPRESS="" fi fi } verify_reqs() { if [ "$TEST_REQS_FW_SYSFS_FALLBACK" = "yes" ]; then if [ ! "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then echo "usermode helper disabled so ignoring test" exit 0 fi fi } setup_tmp_file() { FWPATH=$(mktemp -d) FW="$FWPATH/test-firmware.bin" echo "ABCD0123" >"$FW" FW_INTO_BUF="$FWPATH/$TEST_FIRMWARE_INTO_BUF_FILENAME" echo "EFGH4567" >"$FW_INTO_BUF" NAME=$(basename "$FW") if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path fi } __setup_random_file() { RANDOM_FILE_PATH="$(mktemp -p $FWPATH)" # mktemp says dry-run -n is unsafe, so... if [[ "$1" = "fake" ]]; then rm -rf $RANDOM_FILE_PATH sync else echo "ABCD0123" >"$RANDOM_FILE_PATH" fi echo $RANDOM_FILE_PATH } setup_random_file() { echo $(__setup_random_file) } setup_random_file_fake() { echo $(__setup_random_file fake) } proc_set_force_sysfs_fallback() { if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then echo -n $1 > $FW_FORCE_SYSFS_FALLBACK check_setup fi } proc_set_ignore_sysfs_fallback() { if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then echo -n $1 > $FW_IGNORE_SYSFS_FALLBACK check_setup fi } proc_restore_defaults() { proc_set_force_sysfs_fallback 0 proc_set_ignore_sysfs_fallback 0 } test_finish() { if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout fi if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then if [ "$OLD_FWPATH" = "" ]; then # A zero-length write won't work; write a null byte printf '\000' >/sys/module/firmware_class/parameters/path else echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path fi fi if [ -f $FW ]; then rm -f "$FW" fi if [ -f $FW_INTO_BUF ]; then rm -f "$FW_INTO_BUF" fi if [ -d $FWPATH ]; then rm -rf "$FWPATH" fi proc_restore_defaults } kconfig_has() { if [ -f $PROC_CONFIG ]; then if zgrep -q $1 $PROC_CONFIG 2>/dev/null; then echo "yes" else echo "no" fi else # We currently don't have easy heuristics to infer this # so best we can do is just try to use the kernel assuming # you had enabled it. This matches the old behaviour. if [ "$1" = "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y" ]; then echo "yes" elif [ "$1" = "CONFIG_FW_LOADER_USER_HELPER=y" ]; then if [ -d /sys/class/firmware/ ]; then echo yes else echo no fi fi fi }

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