linux-kernel - Re: [PATCH v2 1/5] selftests/ima: cleanup the kexec selftest

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Message-ID: <cb400d8f-a560-d8d8-07e1-461ca74bae55@kernel.org>
Date:   Tue, 26 Feb 2019 17:57:41 -0700
From:   shuah <shuah@...nel.org>
To:     Mimi Zohar <zohar@...ux.ibm.com>, linux-kselftest@...r.kernel.org
Cc:     linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        shuah <shuah@...nel.org>
Subject: Re: [PATCH v2 1/5] selftests/ima: cleanup the kexec selftest

Hi Mimi,

Thanks for the patches.

On 2/26/19 4:26 PM, Mimi Zohar wrote:
> Remove the few bashisms and use the complete option name for clarity.
> 
> Signed-off-by: Mimi Zohar <zohar@...ux.ibm.com>
> Reviewed-by: Petr Vorel <pvorel@...e.cz>
> ---
>   tools/testing/selftests/ima/test_kexec_load.sh | 18 +++++++++---------
>   1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/tools/testing/selftests/ima/test_kexec_load.sh b/tools/testing/selftests/ima/test_kexec_load.sh
> index 1c10093fb526..0345803e7bec 100755
> --- a/tools/testing/selftests/ima/test_kexec_load.sh
> +++ b/tools/testing/selftests/ima/test_kexec_load.sh
> @@ -1,7 +1,7 @@
>   #!/bin/sh
> -# SPDX-License-Identifier: GPL-2.0+
> +# SPDX-License-Identifier: GPL-2.0-or-later

# SPDX-License-Identifier: GPL-2.0

>   # Loading a kernel image via the kexec_load syscall should fail
> -# when the kerne is CONFIG_KEXEC_VERIFY_SIG enabled and the system
> +# when the kernel is CONFIG_KEXEC_VERIFY_SIG enabled and the system
>   # is booted in secureboot mode.
>   
>   TEST="$0"
> @@ -12,8 +12,8 @@ rc=0
>   ksft_skip=4
>   
>   # kexec requires root privileges
> -if [ $UID != 0 ]; then
> -	echo "$TEST: must be run as root" >&2
> +if [ $(id -ru) -ne 0 ]; then
> +	echo "$TEST: requires root privileges" >&2
>   	exit $ksft_skip
>   fi
>   
> @@ -33,17 +33,17 @@ secureboot=`hexdump $file | awk '{print substr($4,length($4),1)}'`
>   
>   # kexec_load should fail in secure boot mode
>   KERNEL_IMAGE="/boot/vmlinuz-`uname -r`"
> -kexec -l $KERNEL_IMAGE &>> /dev/null
> -if [ $? == 0 ]; then
> -	kexec -u
> -	if [ "$secureboot" == "1" ]; then
> +kexec --load $KERNEL_IMAGE 2>&1 > /dev/null
> +if [ $? -eq 0 ]; then
> +	kexec --unload
> +	if [ $secureboot -eq 1 ]; then
>   		echo "$TEST: kexec_load succeeded [FAIL]"
>   		rc=1
>   	else
>   		echo "$TEST: kexec_load succeeded [PASS]"
>   	fi
>   else
> -	if [ "$secureboot" == "1" ]; then
> +	if [ $secureboot -eq 1 ]; then
>   		echo "$TEST: kexec_load failed [PASS]"
>   	else
>   		echo "$TEST: kexec_load failed [FAIL]"
> 

The rest looks good to me.

thanks,
-- Shuah