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|
#!/bin/bash
#
# Try really hard to rebuild SELinux policy
#
tmpdir=$(mktemp -d -t qarshd-rebuild-policy.XXXX)
savetmp=""
mark_bad()
{
echo "Avoiding: $1"
echo $1 >> qarshd.bad-interfaces
}
get_rule()
{
head -n $1 qarshd.te | tail -n 1 | sed -e 's/(qarshd_t)//'
}
lookup_rule()
{
lineno=`grep -B1 $1 tmp/qarshd.tmp | awk '{print $NF; exit}'`;
get_rule $lineno
}
cp -a * $tmpdir
pushd $tmpdir
for cmd in "make" "make load"; do
until output=$($cmd 2>&1); do
badlineno=`echo "$output" | perl -n -e'/^qarshd.te":(\d+):ERROR/ && print "$1"'`
if [ -n "$badlineno" ]; then
badint=`get_rule $badlineno`
if [ -n "$badint" ]; then
mark_bad $badint
echo "$output" > $tmpdir/$badint.log
savetmp="yes"
continue
fi
fi
badtype=`echo "$output" | perl -n -e'/libsepol.print_missing_requirements.*attribute (\S+)/ && print "$1\n"'`
if [ -n "$badtype" ]; then
badint=`lookup_rule $badtype`
if [ -n "$badint" ]; then
mark_bad $badint
echo "$output" > $tmpdir/$badint.log
savetmp="yes"
continue
else
echo "Interface not found from bad type $badtype"
exit 1
fi
fi
conflict=`echo "$output" | awk '/conflicting TE rule for \(qarshd_t/ { print $NF; exit }'`
if [ -n "$conflict" ]; then
badint=`lookup_rule $conflict`
if [ -n "$badint" ]; then
mark_bad $badint
echo "$output" > $tmpdir/$badint.log
savetmp="yes"
continue
else
echo "Interface not found from conflict type $conflict"
exit 1
fi
fi
dupe=`echo "$output" | awk '/duplicate TE rule for qarshd_t/ { print $NF; exit }'`
if [ -n "$dupe" ]; then
badint=`lookup_rule $dupe`
if [ -n "$badint" ]; then
mark_bad $badint
echo "$output" > $tmpdir/$badint.log
savetmp="yes"
continue
else
echo "Interface not found from duplicate type $dupe"
exit 1
fi
fi
echo "Error from $cmd not understood"
echo "------"
echo "$output"
echo "------"
echo "$output" > $tmpdir/$cmd.log
exit 1
done
done
popd
if [ -z "$savetmp" ]; then
rm -rf $tmpdir
else
echo "Saved policy rebuild logs in $tmpdir"
fi
|
