3 SMACK_PATH=`grep smack /proc/mounts | awk '{print $2}' `
6 test_file=$TMP/smack_test_access_file
10 initial_label=`cat /proc/self/attr/current`
11 python $TMP/notroot.py $uid "TheOther" $ECHO 'TEST' > $test_file
12 chsmack -a "TheOther" $test_file
14 # 12345678901234567890123456789012345678901234567890123456
15 delrule="TheOne TheOther -----"
16 rule_ro="TheOne TheOther r----"
18 # Remove pre-existent rules for "TheOne TheOther <access>"
19 echo -n "$delrule" > $SMACK_PATH/load
20 python $TMP/notroot.py $uid "TheOne" $CAT $test_file 2>&1 1>/dev/null | grep -q "Permission denied" || RC=$?
21 if [ $RC -ne 0 ]; then
22 echo "Process with different label than the test file and no read access on it can read it"
27 echo -n "$rule_ro" > $SMACK_PATH/load
28 python $TMP/notroot.py $uid "TheOne" $CAT $test_file | grep -q "TEST" || RC=$?
29 if [ $RC -ne 0 ]; then
30 echo "Process with different label than the test file but with read access on it cannot read it"
34 # Remove pre-existent rules for "TheOne TheOther <access>"
35 echo -n "$delrule" > $SMACK_PATH/load
36 # changing label of test file to *
37 # according to SMACK documentation, read access on a * object is always permitted
38 chsmack -a '*' $test_file
39 python $TMP/notroot.py $uid "TheOne" $CAT $test_file | grep -q "TEST" || RC=$?
40 if [ $RC -ne 0 ]; then
41 echo "Process cannot read file with * label"
45 # changing subject label to *
46 # according to SMACK documentation, every access requested by a star labeled subject is rejected
48 python $TMP/notroot.py $uid '*' $TOUCH $TMP/test_file_2
49 ls -la $TMP/test_file_2 2>&1 | grep -q 'No such file or directory' || RC=$?
51 echo "Process with label '*' should not have any access"