#! /bin/bash
# FS QA Test No. 051
#
# Test out ACLs.
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
#-----------------------------------------------------------------------
#
# creator
owner=tes@sgi.com

seq=`basename $0`

here=`pwd`
tmp=/tmp/$$
runas=$here/src/runas
status=1	# FAILure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.attr

_cleanup()
{
    cd /
    rm -f $tmp.*
    [ -n "$testdir" ] && rm -rf $testdir/$seq.dir1
    _cleanup_testdir
}

# -----
# minimal access ACL has ACEs: USER_OBJ, GROUP_OBJ, OTHER_OBJ
# This is set with chacl(1) and can be changed by chmod(1).
#
# Test that this is being set for ACL and for std unix permissions
# Test that we can get back the same ACL.
# Test std permissions for rwx.
# -----
#
# Test out default ACLs and that the ACL is being PASSed
# onto the children of the dir.
#
# -----
# Test out access check for extended ACLs.
# -> 3 extra ACEs: MASK, GROUP, USER
# -> the GROUP compares with egid of process _and_ the supplementary
#    groups (as found in /etc/group)
#
# Test that mask works for USER, GROUP, GROUP_OBJ
# Test that the ACE type priority is working
#   -> this would be done by simultaneously matching on ACEs
#   -> interesting if it allows user to specify ACEs in any order
#

# real QA test starts here
_supported_fs xfs udf
_supported_os Linux

[ -x $runas ] || _notrun "$runas executable not found"

rm -f $seq.full

_setup_testdir

_need_to_be_root
_acl_setup_ids
_require_acls

# get dir
cd $testdir
rm -rf $seq.dir1
mkdir $seq.dir1
cd $seq.dir1

echo "QA output created by $seq"
echo ""
echo "=== Test minimal ACE ==="

echo "Setup file"
# Note: as this is a shell script,
#       will need read and execute permission set
#       in order to execute it.
touch file1
cat <<EOF >file1
#!/bin/bash
echo "Test was executed"
EOF
chmod u=rwx file1
chmod g=rw- file1
chmod o=r-- file1
chown $acl1.$acl2 file1
_acl_ls file1

echo ""
echo "--- Test get and set of ACL ---"
echo "Note: Old interface gave an empty ACL - now output an ACL"
chacl -l file1 | _acl_filter_id
echo "Try using single colon separator"
echo "Note: Old interface FAILed because of single colon - new one allows it" 
chacl u::r--,g::rwx,o:rw- file1 2>&1
echo "Expect to PASS" 
chacl u::r--,g::rwx,o::rw- file1 2>&1
chacl -l file1 | _acl_filter_id

echo ""
echo "--- Test sync of ACL with std permissions ---"
_acl_ls file1
chmod u+w file1
_acl_ls file1
chacl -l file1 | _acl_filter_id

echo ""
echo "--- Test owner permissions ---"
chacl u::r-x,g::---,o::--- file1 2>&1
chacl -l file1 | _acl_filter_id
# change to owner
echo "Expect to PASS" 
$runas -u $acl1 -g $acl1 ./file1 2>&1
echo "Expect to FAIL" 
$runas -u $acl2 -g $acl2 ./file1 2>&1

echo ""
echo "--- Test group permissions ---"
chacl u::---,g::r-x,o::--- file1 2>&1
chacl -l file1 | _acl_filter_id
echo "Expect to FAIL - acl1 is owner" 
$runas -u $acl1 -g $acl1 ./file1 2>&1
echo "Expect to PASS - acl2 matches group" 
$runas -u $acl2 -g $acl2 ./file1 2>&1
echo "Expect to PASS - acl2 matches sup group" 
$runas -u $acl2 -g $acl3 -s $acl2 ./file1 2>&1
echo "Expect to FAIL - acl3 is not in group" 
$runas -u $acl3 -g $acl3 ./file1 2>&1

echo ""
echo "--- Test other permissions ---"
chacl u::---,g::---,o::r-x file1 2>&1
chacl -l file1 | _acl_filter_id
echo "Expect to FAIL - acl1 is owner" 
$runas -u $acl1 -g $acl1 ./file1 2>&1
echo "Expect to FAIL - acl2 is in group" 
$runas -u $acl2 -g $acl2 ./file1 2>&1
echo "Expect to FAIL - acl2 is in sup. group" 
$runas -u $acl2 -g $acl3 -s $acl2 ./file1 2>&1
echo "Expect to PASS - acl3 is not owner or in group" 
$runas -u $acl3 -g $acl3 ./file1 2>&1

#-------------------------------------------------------

echo ""
echo "=== Test Extended ACLs ==="

echo ""
echo "--- Test adding a USER ACE ---"
echo "Expect to FAIL as no MASK provided"
chacl u::---,g::---,o::---,u:$acl2:r-x file1 2>&1 | _acl_filter_id
echo "Ensure that ACL has not been changed"
chacl -l file1 | _acl_filter_id
echo "Expect to PASS - USER ACE matches user"
chacl u::---,g::---,o::---,u:$acl2:r-x,m::rwx file1 2>&1
chacl -l file1 | _acl_filter_id
$runas -u $acl2 -g $acl2 ./file1 2>&1
echo "Expect to FAIL - USER ACE does not match user"
$runas -u $acl3 -g $acl3 ./file1 2>&1

echo ""
echo "--- Test adding a GROUP ACE ---"
echo "Expect to FAIL as no MASK provided"
chacl u::---,g::---,o::---,g:$acl2:r-x file1 2>&1 | _acl_filter_id
echo "Ensure that ACL has not been changed"
chacl -l file1 | _acl_filter_id
chacl u::---,g::---,o::---,g:$acl2:r-x,m::rwx file1 2>&1
chacl -l file1 | _acl_filter_id
echo "Expect to PASS - GROUP ACE matches group"
$runas -u $acl2 -g $acl2 ./file1 2>&1
echo "Expect to PASS - GROUP ACE matches sup group"
$runas -u $acl2 -g $acl1 -s $acl2 ./file1 2>&1
echo "Expect to FAIL - GROUP ACE does not match group"
$runas -u $acl3 -g $acl3 ./file1 2>&1

#-------------------------------------------------------

echo ""
echo "--- Test MASK ---"

# group
chacl u::---,g::---,o::---,g:$acl2:r-x,m::-w- file1 2>&1
chacl -l file1 | _acl_filter_id
echo "Expect to FAIL as MASK prohibits execution"
$runas -u $acl2 -g $acl2 ./file1 2>&1

# user
chacl u::---,g::---,o::---,u:$acl2:r-x,m::-w- file1 2>&1
echo "Expect to FAIL as MASK prohibits execution"
$runas -u $acl2 -g $acl2 ./file1 2>&1

# user
chacl u::---,g::---,o::---,u:$acl2:r-x,m::r-x file1 2>&1
echo "Expect to PASS as MASK allows execution"
$runas -u $acl2 -g $acl2 ./file1 2>&1

#-------------------------------------------------------

echo ""
echo "--- Test ACE priority ---"

chacl o::rwx,g::rwx,u:$acl1:rwx,u::---,m::rwx file1 2>&1
echo "Expect to FAIL as should match on owner"
$runas -u $acl1 -g $acl2 ./file1 2>&1

chacl o::---,g::---,u:$acl2:rwx,u::---,m::rwx file1 2>&1
echo "Expect to PASS as should match on user"
$runas -u $acl2 -g $acl2 ./file1 2>&1


#-------------------------------------------------------

echo ""
echo "=== Test can read ACLs without access permissions ==="
# This was a bug in kernel code where syscred wasn't being used
# to override the capabilities
chacl o::---,g::---,u::--- file1 2>&1
chacl -l file1 | _acl_filter_id

#-------------------------------------------------------

echo ""
echo "=== Test Default ACLs ==="
# make test clearer by testing with and without umask
umask 0

mkdir acldir
chacl -b "u::rwx,g::rwx,o::rwx" "u::r-x,g::r--,o::---" acldir 2>&1
chacl -l acldir | _acl_filter_id
cd acldir

touch file2
_acl_ls file2
chacl -l file2 | _acl_filter_id

#ensure that umask is not having an effect 
#so set it and see
umask 722
touch file3
_acl_ls file3
chacl -l file3 | _acl_filter_id

cd ..
umask 022


#-------------------------------------------------------

echo ""
echo "=== Removing ACLs ==="
chacl -l file1 | _acl_filter_id
chacl -l acldir | _acl_filter_id
chacl -l acldir/file2 | _acl_filter_id
echo "Remove ACLs..."
chacl -R file1
chacl -B acldir
chacl -R acldir/file2
echo "Note: Old interface would mean empty ACLs - now we show mode ACLs" 
chacl -l file1 | _acl_filter_id
chacl -l acldir | _acl_filter_id
chacl -l acldir/file2 | _acl_filter_id


#-------------------------------------------------------

echo ""
echo "=== Recursive change ACL ==="
rm -fr root
mkdir root
pushd root >/dev/null
# create an arbitrary little tree
for i in 1 2 3 4 5 6 7 8 9 0
do
	mkdir -p a/$i
	mkdir -p b/c$i/$i
	touch a/$i/mumble
done
popd >/dev/null
chown -R 12345.54321 root
echo "Change #1..."
$runas -u 12345 -g 54321 -- `which chacl` -r u::rwx,g::-w-,o::--x root
find root -print | xargs chacl -l
echo "Change #2..."
$runas -u 12345 -g 54321 -- `which chacl` -r u::---,g::---,o::--- root
find root -print | xargs chacl -l


#-------------------------------------------------------

echo ""
echo "=== Test out error messages for ACL text parsing  ==="
echo "Note: Old interface gave more informative error msgs"

touch file1
set -x
chacl u file1
chacl u: file1
chacl u:rumpledumpleunknownuser file1
chacl u:rumpledumpleunknownuser: file1
chacl g:rumpledumpleunknowngrp file1
chacl g:rumpledumpleunknowngrp: file1
chacl o:user1:rwx file1
chacl m:user1:rwx file1
chacl a::rwx file1
set +x

#-------------------------------------------------------

echo ""
echo "=== Test out large ACLs  ==="
touch largeaclfile
XFS_ACL_MAX_ENTRIES=25
num_aces_pre=`expr $XFS_ACL_MAX_ENTRIES - 1`
num_aces_post=`expr $XFS_ACL_MAX_ENTRIES + 1`

acl1=`_create_n_aces $num_aces_pre`
acl2=`_create_n_aces $XFS_ACL_MAX_ENTRIES`
acl3=`_create_n_aces $num_aces_post`
acl4=`_create_n_aces 16` # Andreas G. libacl size for initial get
acl5=`_create_n_aces 17` # 1 over A.G. libacl initial size

echo "1 below xfs acl max"
chacl $acl1 largeaclfile
getfacl --numeric largeaclfile | _filter_aces

echo "xfs acl max"
chacl $acl2 largeaclfile
getfacl --numeric largeaclfile | _filter_aces

echo "1 above xfs acl max"
chacl $acl3 largeaclfile
getfacl --numeric largeaclfile | _filter_aces

echo "use 16 aces"
chacl $acl4 largeaclfile
getfacl --numeric largeaclfile | _filter_aces

echo "use 17 aces"
chacl $acl5 largeaclfile
getfacl --numeric largeaclfile | _filter_aces

#-------------------------------------------------------

# success, all done
status=0
exit