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selftests: firmware: add empty string and async tests

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Now that we've added a 'trigger_async_request' knob to test the
request_firmware_nowait() API, let's use it. Also add tests for the
empty ("") string, since there have been a couple errors in that
handling already.

Since we now have real ways that the sysfs write might fail, let's add
the appropriate check on the 'echo' lines too.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Brian Norris 2015-12-09 14:50:29 -08:00 committed by Shuah Khan
parent 715780ae4b
commit 1b1fe542b6
1 changed files with 28 additions and 1 deletions
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29
tools/testing/selftests/firmware/fw_filesystem.sh
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@ -48,8 +48,21 @@ echo "ABCD0123" >"$FW"
NAME=$(basename "$FW")
if printf '\000' >"$DIR"/trigger_request; then
echo "$0: empty filename should not succeed" >&2
exit 1
fi
if printf '\000' >"$DIR"/trigger_async_request; then
echo "$0: empty filename should not succeed (async)" >&2
exit 1
fi
# Request a firmware that doesn't exist, it should fail.
echo -n "nope-$NAME" >"$DIR"/trigger_request
if echo -n "nope-$NAME" >"$DIR"/trigger_request; then
echo "$0: firmware shouldn't have loaded" >&2
exit 1
fi
if diff -q "$FW" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not expected to match" >&2
exit 1
@ -74,4 +87,18 @@ else
echo "$0: filesystem loading works"
fi
# Try the asynchronous version too
if ! echo -n "$NAME" >"$DIR"/trigger_async_request ; then
echo "$0: could not trigger async request" >&2
exit 1
fi
# Verify the contents are what we expect.
if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not loaded (async)" >&2
exit 1
else
echo "$0: async filesystem loading works"
fi
exit 0