linux-kernel - Re: [PATCH v2 4/5] selftests/ima: kexec_file

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Date:   Mon, 11 Mar 2019 07:49:18 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Petr Vorel <pvorel@...e.cz>
Cc:     linux-kselftest@...r.kernel.org, Shuah Khan <shuah@...nel.org>,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/5] selftests/ima: kexec_file_load syscall test

On Mon, 2019-03-11 at 09:34 +0100, Petr Vorel wrote:
> Hi Mimi,
> 
> > On Thu, 2019-02-28 at 23:00 +0100, Petr Vorel wrote:
> 
> > > > +	local keypair1="$2"
> > > > +	local keypair2="$3"
> > > > +
> > > > +	mount_securityfs
> > > > +
> > > > +	local ima_policy=$SECURITYFS/ima/policy
> > > > +	if [ ! -e $ima_policy ]; then
> > > > +		log_fail "$ima_policy not found"
> > > > +	fi
> > > > +
> > > > +	if [ -n $keypair2 ]; then
> > > > +		grep -e "^$action.*$keypair1" "$ima_policy" | \
> > > > +			grep -q -e "$keypair2"
> > > > +	else
> > > > +		grep -q -e "^$action.*$keypair1" "$ima_policy"
> > > > +	fi
> > > > +
> > > > +	[ $? -eq 0 ] && ret=1 || ret=0
> > > > +        return $ret
> > > return $? is enough here (+ ret was not defined as local and
> mixing tabs with spaces)
> 
> > "grep -q" exits with zero if any match is found.  This line inverts
> > the result so that 1 is returned for found.
> Right. Sorry for wrong report :).

Thank you so much for reviewing the patches!  Other than deferring
making the IMA "common" functions generic, hopefully I didn't miss
anything.  I just posted the v3 version.

Mimi

> >  v3 will make "ret" local and fix the tabs/spaces.
> 
> 
> Kind regards,
> Petr
>