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c7f92042d3
Add tests for gpiolib-cdev to make sure accessing to dangling resources via the opening file descriptor won't crash the system after the underlying resource providers have gone. Reviewed-by: Linus Walleij <linusw@kernel.org> Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org> Link: https://patch.msgid.link/20260223061726.82161-7-tzungbi@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
64 lines
1.6 KiB
Bash
Executable File
64 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Copyright 2026 Google LLC
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BASE_DIR=`dirname $0`
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MODULE="gpio-cdev-uaf"
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fail() {
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echo "$*" >&2
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echo "GPIO $MODULE test FAIL"
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exit 1
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}
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skip() {
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echo "$*" >&2
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echo "GPIO $MODULE test SKIP"
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exit 4
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}
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# Load the gpio-sim module. This will pull in configfs if needed too.
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modprobe gpio-sim || skip "unable to load the gpio-sim module"
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# Make sure configfs is mounted at /sys/kernel/config. Wait a bit if needed.
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for _ in `seq 5`; do
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mountpoint -q /sys/kernel/config && break
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mount -t configfs none /sys/kernel/config
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sleep 0.1
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done
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mountpoint -q /sys/kernel/config || \
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skip "configfs not mounted at /sys/kernel/config"
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echo "1. GPIO"
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echo "1.1. poll"
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$BASE_DIR/gpio-cdev-uaf chip poll || fail "failed to test chip poll"
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echo "1.2. read"
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$BASE_DIR/gpio-cdev-uaf chip read || fail "failed to test chip read"
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echo "1.3. ioctl"
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$BASE_DIR/gpio-cdev-uaf chip ioctl || fail "failed to test chip ioctl"
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echo "2. linehandle"
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echo "2.1. ioctl"
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$BASE_DIR/gpio-cdev-uaf handle ioctl || fail "failed to test handle ioctl"
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echo "3. lineevent"
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echo "3.1. read"
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$BASE_DIR/gpio-cdev-uaf event read || fail "failed to test event read"
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echo "3.2. poll"
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$BASE_DIR/gpio-cdev-uaf event poll || fail "failed to test event poll"
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echo "3.3. ioctl"
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$BASE_DIR/gpio-cdev-uaf event ioctl || fail "failed to test event ioctl"
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echo "4. linereq"
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echo "4.1. read"
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$BASE_DIR/gpio-cdev-uaf req read || fail "failed to test req read"
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echo "4.2. poll"
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$BASE_DIR/gpio-cdev-uaf req poll || fail "failed to test req poll"
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echo "4.3. ioctl"
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$BASE_DIR/gpio-cdev-uaf req ioctl || fail "failed to test req ioctl"
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echo "GPIO $MODULE test PASS"
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