acl/nontrivial/zfs_acl_chmod_inherit_003_pos.ksh

	zfs_acl_chmod_inherit_003_pos.ksh revision 1d32ba663e202c24a5a1f2e5aef83fffb447cb7f
#!/bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#

#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright 2016 Nexenta Systems, Inc.
#

. $STF_SUITE/tests/functional/acl/acl_common.kshlib

# DESCRIPTION:
# Verify chmod have correct behaviour to directory and file when
# filesystem has the different aclinherit setting
#
# STRATEGY:
# 1. Use both super user and non-super user to run the test case.
# 2. Create basedir and a set of subdirectores and files within it.
# 3. Separately chmod basedir with different inherite options,
#    combine with the variable setting of aclinherit:
#    "discard", "noallow", "restricted" or "passthrough".
# 4. Then create nested directories and files like the following.
#
#               ofile
#               odir
#    chmod -->  basedir -|
#                        |_ nfile1
#                        |_ ndir1 _
#                                  |_ nfile2
#                                  |_ ndir2 _
#                                            |_ nfile3
#                                            |_ ndir3
#
# 5. Verify each directories and files have the correct access control
#    capability.

verify_runnable "both"

function cleanup
{
    [[ -f $ofile ]] && log_must rm -f $ofile
    [[ -d $odir ]] && log_must rm -rf $odir
    [[ -d $basedir ]] && log_must rm -rf $basedir
}

log_assert "Verify chmod have correct behaviour to directory and file when" \
    "filesystem has the different aclinherit setting"
log_onexit cleanup

# Define inherit flag
typeset aclinherit_flag=("discard" "noallow" "restricted" "passthrough")
typeset object_flag=("f-" "-d" "fd")
typeset strategy_flag=("--" "i-" "-n" "in")

typeset ace_prefix1="owner@"
typeset ace_prefix2="group@"
typeset ace_prefix3="everyone@"

# Define the base directory and file
basedir=$TESTDIR/basedir; ofile=$TESTDIR/ofile; odir=$TESTDIR/odir

# Define the files and directories that will be created after chmod
ndir1=$basedir/ndir1; ndir2=$ndir1/ndir2; ndir3=$ndir2/ndir3
nfile1=$basedir/nfile1; nfile2=$ndir1/nfile2; nfile3=$ndir2/nfile3

# Verify all nodes have expected correct access control
allnodes="$ndir1 $ndir2 $ndir3 $nfile1 $nfile2 $nfile3"

# According to inherited flag, verify subdirectories and files within it has
# correct inherited access control.
function verify_inherit #<aclinherit> <object> [strategy]
{
    # Define the nodes which will be affected by inherit.
    typeset inherit_nodes
    typeset inherit=$1
    typeset obj=$2
    typeset str=$3

    log_must usr_exec mkdir -p $ndir3
    log_must usr_exec touch $nfile1 $nfile2 $nfile3

    # Check if we have any inheritance flags set
    if [[ $obj != "--" ]]; then
        # Files should have inherited ACEs only if file_inherit is set
        if [[ ${obj:0:1} == "f" ]]; then
            inherit_nodes="$inherit_nodes $nfile1"
            if [[ ${str:1:1} != "n" ]]; then
                inherit_nodes="$inherit_nodes $nfile2 $nfile3"
            fi
        fi

        # Directories should have inherited ACEs if file_inherit without
        # no_propagate and/or dir_inherit is set
        if [[ (${obj:0:1} == "f" && ${str:1:1} != "n") ||
            ${obj:1:1} == "d" ]]; then
            inherit_nodes="$inherit_nodes $ndir1"
            if [[ ${str:1:1} != "n" ]]; then
                inherit_nodes="$inherit_nodes $ndir2 $ndir3"
            fi
        fi
    fi

    for node in $allnodes; do
        typeset -i i=0 count=0 inherited=0
        typeset expacl perm inh act

        if [[ "$inherit_nodes" == *"$node"* ]]; then
            inherited=1
        fi

        while ((i < $maxaces)); do
            # If current node isn't in inherit list, there's
            # nothing to check, skip to checking trivial ACL
            if ((inherited == 0)); then
                ((count = maxaces + 1))
                break
            fi

            eval expacl=\$acl$i
            case $inherit in
            discard)
                # Do not inherit any ACEs
                ((count = maxaces + 1))
                break
                ;;
            noallow)
                # Only inherit inheritable ACEs that specify
                # "deny" permissions
                if [[ $expacl == *":allow" ]] ; then
                    ((i = i + 1))
                    continue
                fi
                ;;
            restricted)
                # Remove write_acl and write_owner permissions
                # when the ACEs is inherited
                eval expacl=\$acls$i
                ;;
            passthrough)
                ;;
            esac

            perm=${expacl%:*}
            inh=${perm##*:}
            inh=${inh:0:2}
            perm=${perm%:*}
            act=${expacl##*:}

            if [[ -d $node ]]; then
                # Clear inheritance flags if no_propagate is set
                if [[ ${str:1:1} == "n" ]]; then
                    inh="--"
                fi
                expacl="$perm:$inh"
                # Set inherit_only if there's a file_inherit
                # without dir_inherit
                if [[ ${obj:0:1} == "f" &&
                    ${obj:1:1} != "d" ]]; then
                    expacl="${expacl}i---I:$act"
                else
                    expacl="${expacl}----I:$act"
                fi
            elif [[ -f $node ]] ; then
                expacl="$perm:------I:$act"
            fi

            aclcur=$(get_ACE $node $count compact)
            aclcur=${aclcur#$count:}
            if [[ -n $expacl && $expacl != $aclcur ]]; then
                ls -Vd $basedir
                ls -Vd $node
                log_fail "$inherit $i #$count" \
                    "expected: $expacl, current: $aclcur"
            fi

            ((i = i + 1))
            ((count = count + 1))
        done

        # There were no non-trivial ACEs to check, do the trivial ones
        if ((count == maxaces + 1)); then
            if [[ -d $node ]]; then
                compare_acls $node $odir
            elif [[ -f $node ]]; then
                compare_acls $node $ofile
            fi

            if [[ $? -ne 0 ]]; then
                ls -Vd $basedir
                ls -Vd $node
                log_fail "unexpected acl: $node," \
                    "$inherit ($str)"
            fi
        fi

    done
}

typeset -i i=0 maxaces=6
typeset acl0 acl1 acl2 acl3 acl4 acl5
typeset acls0 acls1 acls2 acls3 acls4 acls5

log_must zfs set aclmode=passthrough $TESTPOOL/$TESTFS

for inherit in "${aclinherit_flag[@]}"; do
    log_must zfs set aclinherit=$inherit $TESTPOOL/$TESTFS

    for user in root $ZFS_ACL_STAFF1; do
        log_must set_cur_usr $user

        for obj in "${object_flag[@]}"; do
            for str in "${strategy_flag[@]}"; do
                typeset inh_opt=$obj
                ((${#str} != 0)) && inh_opt="${inh_opt}${str}--"

                inh_a="${inh_opt}-"
                inh_b="${inh_opt}I"

                # deny - to verify "noallow"
                # write_acl/write_owner - to verify "restricted"
                acl0="$ace_prefix1:-------A-W-Co-:$inh_a:allow"
                acl1="$ace_prefix2:-------A-W-Co-:$inh_a:deny"
                acl2="$ace_prefix3:-------A-W-Co-:$inh_a:allow"
                acl3="$ace_prefix1:-------A-W----:$inh_a:deny"
                acl4="$ace_prefix2:-------A-W----:$inh_a:allow"
                acl5="$ace_prefix3:-------A-W----:$inh_a:deny"

                # ACEs filtered by write_acl/write_owner
                acls0="$ace_prefix1:-------A-W----:$inh_b:allow"
                acls1="$ace_prefix2:-------A-W-Co-:$inh_b:deny"
                acls2="$ace_prefix3:-------A-W----:$inh_b:allow"
                acls3="$ace_prefix1:-------A-W----:$inh_b:deny"
                acls4="$ace_prefix2:-------A-W----:$inh_b:allow"
                acls5="$ace_prefix3:-------A-W----:$inh_b:deny"

                log_must usr_exec mkdir $basedir
                log_must usr_exec mkdir $odir
                log_must usr_exec touch $ofile

                ((i = maxaces - 1))
                while ((i >= 0)); do
                    eval acl=\$acl$i
                    log_must usr_exec chmod A+$acl $basedir
                    ((i = i - 1))
                done

                verify_inherit $inherit $obj $str

                log_must usr_exec rm -rf $ofile $odir $basedir
            done
        done
    done
done

log_pass "Verify chmod inherit behaviour co-op with aclinherit setting passed"