Cross Reference: /illumos-gate/usr/src/cmd/tsol/labeld/svc-labeld

#!/sbin/sh
#
# 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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
#

. /lib/svc/share/smf_include.sh

ROOT_PATH=""
if [ $# -gt 1 ]; then
    if [ $# -ne 3 -o "$2" != "-R" ]; then
        echo "$0: invalid syntax"
        exit $SMF_EXIT_ERR_CONFIG
    fi
    if [ "$3" != "/" ]; then
        ROOT_PATH=$3
    fi
fi
if [ -n "$ROOT_PATH" -a "$1" != "start" ]; then
    echo "$0: invalid syntax: -R allowed for start method only"
    exit $SMF_EXIT_ERR_CONFIG
fi
if [ -n "$ROOT_PATH" -a ! -d "$ROOT_PATH" ]; then
    echo "$0: invalid -R rootpath dir specified"
    exit $SMF_EXIT_ERR_CONFIG
fi

if smf_is_nonglobalzone; then
    echo "$0: not supported in a local zone"
    exit $SMF_EXIT_ERR_CONFIG
fi

rewrite_logindev()
{
    from="$1"
    to="$2"
    # Comment out audio, usb, removable-media, and hotpluggable device
    # entries in /etc/logindevperm.
    LOGINDEVPERM=$ROOT_PATH/etc/logindevperm
    if [ ! -f $LOGINDEVPERM ]; then
        return
    fi
    for line in \
        "/dev/sound/" \
        "/dev/removable-media/" \
        "/dev/hotpluggable/" \
        "/dev/usb/\[0-9a-f\]" \
            ; do
        sed -e "s!^$from\([^#   ]\{1,\}[    }\{1,\}[0-9]\{1,\}[     ]\{1,\}\)$line!$to\1$line!" \
            $LOGINDEVPERM > /tmp/tmp.$$
        cp /tmp/tmp.$$ $LOGINDEVPERM
    done
    rm -f /tmp/tmp.$$
}

do_logindev()
{
    rewrite_logindev "" "#"
}

do_otherservices()
{
    # Setup dependent services
    cat >> $ROOT_PATH/var/svc/profile/upgrade <<\__ENABLE_OTHERS
        /usr/sbin/svcadm enable -s svc:/network/tnd:default
        /usr/sbin/svcadm enable -s svc:/system/tsol-zones:default
        /usr/sbin/svcadm enable svc:/network/rpc/rstat:default
__ENABLE_OTHERS

}

do_audit_devalloc()
{
    # Ensure auditing and device allocation are enabled by
    # default with Trusted Extensions.
    if [ "$ROOT_PATH" = "/" -o "$ROOT_PATH" = "" ]; then
        /usr/sbin/svcadm enable -s svc:/system/device/allocate:default
        echo "Starting auditd ..."
        /usr/sbin/audit -s
    else
        cat >> $ROOT_PATH/var/svc/profile/upgrade <<\_ENABLE_AUDITD
            /usr/sbin/audit -s
            /usr/sbin/svcadm enable -s svc:/system/device/allocate:default
_ENABLE_AUDITD
    fi
}

do_nscd()
{
# For Trusted Extensions, make nscd service transient in local zones.
cat >> $ROOT_PATH/var/svc/profile/upgrade <<\_DEL_LOCAL_NSCD
    if [ `/sbin/zonename` != "global" ]; then
        nscd="svc:/system/name-service-cache"
        duration=""
        if /bin/svcprop -q -c -p startd/duration $nscd ; then
            duration=`/bin/svcprop -c -p startd/duration $nscd`
        fi
        if [ "$duration" != "transient" ]; then
            /usr/sbin/svccfg -s $nscd addpg startd framework
            /usr/sbin/svccfg -s $nscd setprop \
                startd/duration = astring: transient
            /usr/sbin/svccfg -s $nscd setprop stop/exec = :true
            /usr/sbin/svcadm refresh $nscd
        fi
    fi
_DEL_LOCAL_NSCD
}

do_bootupd()
{
    if [ -f $ROOT_PATH/platform/`/sbin/uname -m`/boot_archive ]; then
        if [ -z "$ROOT_PATH" -o "$ROOT_PATH" = "/" ]; then
            /sbin/bootadm update-archive
        else
            /sbin/bootadm update-archive -R $ROOT_PATH
        fi
    fi
}

setup_tx_changes(){
#
# No comments or blanks lines allowed in entries below
#
cat > ${TX_ENTRIES} << EOF
dtlogin     account     requisite   pam_roles.so.1
dtlogin     account     required    pam_unix_account.so.1
dtsession   account     requisite   pam_roles.so.1
dtsession   account     required    pam_unix_account.so.1
gdm     account     requisite   pam_roles.so.1
gdm     account     required    pam_unix_account.so.1
xscreensaver    account     requisite   pam_roles.so.1
xscreensaver    account     required    pam_unix_account.so.1
passwd      account     requisite   pam_roles.so.1
passwd      account     required    pam_unix_account.so.1
dtpasswd    account     requisite   pam_roles.so.1
dtpasswd    account     required    pam_unix_account.so.1
tsoljds-tstripe account     requisite   pam_roles.so.1
tsoljds-tstripe account     required    pam_unix_account.so.1
other       account     required    pam_tsol_account.so.1
EOF
}

do_addpam()
{
    PAM_TMP=/tmp/pam_conf.$$
    TX_ENTRIES=$PAM_TMP/sct.$$
    PAM_DEST=$ROOT_PATH/etc/pam.conf

    mkdir $PAM_TMP  || exit $SMF_EXIT_ERR_FATAL
    setup_tx_changes

    # verify that pam.conf file exists...
    if [ ! -f ${PAM_DEST} ]; then
        echo "$0: ${PAM_DEST} not found; aborting"
        exit $SMF_EXIT_ERR_FATAL
    fi

    #
    # Update pam.conf to append Trusted Extensions entries if not
    # already present.
    #
    rm -f /tmp/pamconf.$$
    while read e1 e2 e3 e4 e5
    do
        # If this is the 'other' entry, add it unless it already
        # exists.
        if [ $e1 = "other" ]; then
            grep \
"^[#    ]*$e1[  ][  ]*$e2[  ][  ]*$e3[  ][  ]*$e4" \
                $PAM_DEST >/dev/null 2>&1
            if [ $? = 1 ] ; then
                # Doesn't exist, enter into pam.conf
                echo "$e1\t$e2 $e3\t\t$e4 $e5" \
                    >> /tmp/pamconf.$$
            fi
        else
            # Add other entries unless they already have a
            # stack of their own.
            grep "^[#   ]*$e1[  ][  ]*$e2[  ]" \
                $PAM_DEST >/dev/null 2>&1
            if [ $? = 1 ] ; then
                echo "$e1\t$e2 $e3\t\t$e4 $e5" \
                    >> /tmp/pamconf.$$
            fi
        fi
    done < ${TX_ENTRIES}
    # Append TX lines if any were not present already.
    if [ -f /tmp/pamconf.$$ ] ; then
        echo "# Entries for Trusted Extensions" >> $PAM_DEST
        cat /tmp/pamconf.$$ >> $PAM_DEST
        echo "$0: updating $PAM_DEST entries for Trusted Extensions;"
        echo "$0: please examine/update any new entries"
            rm -f /tmp/pamconf.$$
        fi

    rm -rf $PAM_TMP
}

do_pamremove()
{
    PAM_TMP=/tmp/pam_conf.$$
    TX_ENTRIES=$PAM_TMP/sct.$$
    PAM_DEST=$ROOT_PATH/etc/pam.conf
    TMPFILE=$PAM_TMP/pam.conf

    mkdir $PAM_TMP  || exit $SMF_EXIT_ERR_FATAL

    # verify that pam.conf file exists...
    if [ ! -f ${PAM_DEST} ]; then
        echo "$0: ${PAM_DEST} not found; aborting"
        exit $SMF_EXIT_ERR_FATAL
    fi


    grep '^[a-z].*pam_tsol_account' $PAM_DEST > /dev/null 2>&1
    if [ $? -ne 0 ]; then
        echo "$0: pam_tsol_account module not present,"
        echo "$0: No changes were made to $PAM_DEST."
        return
    fi

    grep -v pam_tsol_account $PAM_DEST > $TMPFILE
    echo "$0: $PAM_DEST "tsol" entries removed"
    cp $TMPFILE $PAM_DEST

    rm -rf $PAM_TMP
}

do_commonstart()
{
    echo "$0: Updating $ROOT_PATH/etc/system..."
    if [ ! -f ${ROOT_PATH}/etc/system ]; then
        touch ${ROOT_PATH}/etc/system
    fi

    # Set sys_labeling in etc/system
    grep -v "sys_labeling=" ${ROOT_PATH}/etc/system > /tmp/etc.system.$$
    echo "set sys_labeling=1" >> /tmp/etc.system.$$
    mv /tmp/etc.system.$$ ${ROOT_PATH}/etc/system
    grep "set sys_labeling=1" ${ROOT_PATH}/etc/system > /dev/null 2>&1
    if [ $? -ne 0 ]; then
            echo "$0: ERROR: cannot set sys_labeling in $ROOT_PATH/etc/system"
        exit $SMF_EXIT_ERR_FATAL
    fi

    # Setup dependent services
    do_otherservices

    do_logindev
    do_audit_devalloc
    do_nscd
    do_addpam

    do_bootupd
}

do_servicetag_register()
{
    ROOTDIR=$1
    SOL_ARCH=`/sbin/uname -p`
    SOL_VERS=`/sbin/uname -r`
    TX_PROD_URN="urn:uuid:fc720df3-410f-11dc-9b8e-080020a9ed93"

    if [ ! -x /usr/bin/stclient ]; then
        return
    fi

    # if already registered then do nothing more here
    inst=`/usr/bin/svcprop -p labeld/svctag_inst $SMF_FMRI 2>/dev/null`
    if [ -n "$inst" ]; then
        # this instance id was saved in a SMF property
        /usr/bin/stclient -g -i $inst -r $ROOTDIR >/dev/null 2>&1
        if [ $? = 0 ]; then
            # matching service tag found, so do nothing
            return
        else
            # no match for instance id saved in SMF property
            /usr/sbin/svccfg -s $SMF_FMRI delprop \
                labeld/svctag_inst
            /usr/sbin/svcadm refresh $SMF_FMRI
        fi
    fi


    # fall through: no service tag, or does not match saved instance id

    # determine the urn of the parent (Solaris)
    SOL_PROD_URN=""
    case $SOL_VERS in
    5.11)
        SOL_PROD_URN="-F urn:uuid:6df19e63-7ef5-11db-a4bd-080020a9ed93"
        ;;
    5.10)
        SOL_PROD_URN="-F urn:uuid:5005588c-36f3-11d6-9cec-fc96f718e113"
        ;;
    esac

    # add the service tag
    RC=`/usr/bin/stclient -a -p "Solaris Trusted Extensions"    \
        -e $SOL_VERS -t $TX_PROD_URN -P Solaris $SOL_PROD_URN   \
        -m Sun -A $SOL_ARCH -z global -S $0 -r $ROOTDIR`
    if [ $? = 0 ]; then
        # save instance id in SMF property
        inst=`echo "$RC" | grep -i urn|awk -F=  '{print $2}'`
        /usr/sbin/svccfg -s $SMF_FMRI setprop \
            labeld/svctag_inst = astring: "$inst"
        /usr/sbin/svcadm refresh $SMF_FMRI
    fi
}

do_servicetag_delete()
{
    if [ ! -x /usr/bin/stclient ]; then
        return
    fi

    inst=`/usr/bin/svcprop -p labeld/svctag_inst $SMF_FMRI 2>/dev/null`

    if [ -n "$inst" ]; then
        # delete service tag
        /usr/bin/stclient -d -i $inst
        # delete saved instance id
        /usr/sbin/svccfg -s $SMF_FMRI delprop labeld/svctag_inst
        /usr/sbin/svcadm refresh $SMF_FMRI
    fi
}


daemon_start()
{
    # If a labeld door exists, check for a labeld process and exit
    # if the daemon is already running.
    if [ -r /var/tsol/doors/labeld ]; then
        if /usr/bin/pgrep -x -u 0 -P 1 labeld >/dev/null 2>&1; then
            echo "$0: labeld is already running"
            exit $SMF_EXIT_ERR_FATAL
        fi
    fi
    /usr/bin/rm -f /var/tsol/doors/labeld
    /usr/lib/labeld
}

PATH=/usr/sbin:/usr/bin; export PATH

case "$1" in
'start')
    if [ -z "$ROOT_PATH" -o "$ROOT_PATH" = "/" ]; then
        # native

        if [ -z "$SMF_FMRI" ]; then
            echo "$0: this script can only be invoked by smf(5)"
            exit $SMF_EXIT_ERR_NOSMF
        fi

        tx_enabled=`/usr/bin/svcprop -c -p general/enabled $SMF_FMRI`
        if [ "$tx_enabled" = "false" ]; then
            # A sign of trying temporary enablement...no-no
            echo "$0: Temporarily enabling Trusted Extensions is not allowed."
            exit $SMF_EXIT_ERR_CONFIG
        fi

        if (smf_is_system_labeled); then
            do_servicetag_register /
            daemon_start
            exit $SMF_EXIT_OK
        fi

        # Make changes to enable Trusted Extensions
        grep "^set sys_labeling=1" ${ROOT_PATH}/etc/system > /dev/null 2>&1
        if [ $? -eq 0 ]; then
            echo "$0: already enabled. Exiting."
            exit $SMF_EXIT_OK
        fi

        if [ "`/usr/sbin/zoneadm list -c`" != "global" ]; then
            echo "$0: Must remove zones before enabling Trusted Extensions."
            exit $SMF_EXIT_ERR_CONFIG
        fi

        do_commonstart

        do_servicetag_register /

        # start daemon proccess so our service doesn't go into
        # maintenance state
        daemon_start

        echo "$0: Started.  Must reboot and configure Trusted Extensions."
    else
        # Support jumpstart etc

        # Make changes to enable Trusted Extensions
        grep "^set sys_labeling=1" ${ROOT_PATH}/etc/system > /dev/null 2>&1
        if [ $? -eq 0 ]; then
            echo "$0: already enabled. Exiting."
            exit $SMF_EXIT_OK
        fi

        # Setup dependent services
        cat >> $ROOT_PATH/var/svc/profile/upgrade <<\__TRUSTED_ENABLE
            /usr/sbin/svcadm enable -s svc:/system/labeld:default
__TRUSTED_ENABLE

        do_commonstart
        do_servicetag_register $ROOT_PATH
        echo "$0: Started.  Must configure Trusted Extensions before booting."
    fi
    ;;

'stop')
    tx_enabled=`/usr/bin/svcprop -c -p general/enabled $SMF_FMRI`
    if [ "$tx_enabled" = "true" ]; then
        /usr/bin/pkill -x -u 0 -P 1 -z `smf_zonename` labeld
        exit $SMF_EXIT_OK
    fi

    if [ "`/usr/sbin/zoneadm list -c`" != "global" ]; then
        echo "$0: Must remove zones before disabling Trusted Extensions."
        exit $SMF_EXIT_ERR_CONFIG
    fi

    # Stop Trusted services.
    /usr/sbin/svcadm disable svc:/system/tsol-zones:default 2>/dev/null
    /usr/sbin/svcadm disable svc:/network/tnd:default 2>/dev/null

    # Uncomment audio, usb, removable-media, and hotpluggable device
    # entries in /etc/logindevperm.
    rewrite_logindev "#" ""

    # Remove sys_labeling from /etc/system
    grep -v "sys_labeling" ${ROOT_PATH}/etc/system > /tmp/etc.system.$$
    mv /tmp/etc.system.$$ ${ROOT_PATH}/etc/system
    grep "sys_labeling" ${ROOT_PATH}/etc/system > /dev/null 2>&1
    if [ $? -eq 0 ]; then
            echo "$0: ERROR: cannot remove sys_labeling in $ROOT_PATH/etc/system"
        exit $SMF_EXIT_ERR_FATAL
    fi

    do_pamremove
    do_servicetag_delete

    do_bootupd

    /usr/bin/pkill -x -u 0 -P 1 -z `smf_zonename` labeld
    echo "$0: Stopped.  Will take effect at next boot."
    ;;

*)
    echo "Usage: $0 { start | stop }"
    exit 1
    ;;
esac

exit $SMF_EXIT_OK