Cross Reference: /illumos-gate/usr/src/lib/libresolv2/dns-install

#!/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) 2010, Oracle and/or its affiliates. All rights reserved.
#

#
# Install DNS client service
#

. /lib/svc/share/smf_include.sh
. /lib/svc/share/net_include.sh

SVCCFG=/usr/sbin/svccfg
SVCPROP=/usr/bin/svcprop
SVCADM=/usr/sbin/svcadm

DNS_NWAM_FMRI="svc:/network/physical:nwam"
DNS_INSTALL_FMRI=$SMF_FMRI

DNS_INSTALL_PG="install_props"

DNS_UNDEFINED_STRING_PROP="\"\""

dns_install_debug=0

unset dns_install_domain dns_install_servers dns_install_search

dns_process_install_pg()
{
    dns_install_domain=""
    dns_install_servers=""
    dns_install_search=""
    config=0

    #
    # Retrieve the name server property values.
    #
    prop=`$SVCPROP -p $DNS_INSTALL_PG/nameserver $DNS_INSTALL_FMRI`
    if [ $? -eq 0 -a "$prop" != "$NET_INADDR_ANY" ]; then
        dns_install_servers=$prop
        config=1
    fi

    #
    # Retrieve the name service domain.
    #
    prop=`$SVCPROP -p $DNS_INSTALL_PG/domain $DNS_INSTALL_FMRI`
    if [ $? -eq 0 -a "$prop" != "$DNS_UNDEFINED_STRING_PROP" ]; then
        dns_install_domain=$prop
        config=1
    fi

    #
    # Retrieve the search list.
    #
    prop=`$SVCPROP -p $DNS_INSTALL_PG/search $DNS_INSTALL_FMRI`
    if [ $? -eq 0 -a "$prop" != "$DNS_UNDEFINED_STRING_PROP" ]; then
        dns_install_search=$prop
        config=1
    fi

    [ $config -ne 0 ] || return $SMF_EXIT_OK

    #
    # Create the resolv.conf file.
    #
    /usr/bin/touch /etc/resolv.conf.$$
    if [ $? -ne 0 ]; then
        net_record_err "Error creating \"/etc/resolv.conf.$$\"" $?
        return $SMF_EXIT_ERR_FATAL
    fi

    for j in $dns_install_servers
    do
        server=`echo $j | /usr/bin/sed s/\"//g`
        echo "nameserver $server" >>/etc/resolv.conf.$$
    done

    if [ "$dns_install_domain" != "" ]; then
        echo "domain $dns_install_domain" >>/etc/resolv.conf.$$
    fi

    if [ "$dns_install_search" != "" ]; then
        list="search"
        for j in $dns_install_search
        do
            domain=`echo $j | /usr/bin/sed s/\"//g`
            list="$list $domain"
        done
        echo $list >>/etc/resolv.conf.$$
    fi

    /usr/bin/mv /etc/resolv.conf.$$ /etc/resolv.conf
    if [ $? -ne 0 ]; then
        err=$?
        msg="Error moving /etc/resolv.conf.$$ to \"/etc/resolv.conf\""
        net_record_err "$msg" $err
        return $SMF_EXIT_ERR_FATAL
    fi

    /usr/bin/chmod 644 /etc/resolv.conf
    if [ $? -ne 0 ]; then
        err=$?
        msg="Error setting permissions on \"/etc/resolv.conf\""
        net_record_err "$msg" $err
        return $SMF_EXIT_ERR_FATAL
    fi

    #
    # Create the nsswitch.conf file
    #
    /usr/bin/cp -f /etc/nsswitch.dns /etc/nsswitch.conf
    if [ $? -ne 0 ]; then
        err=$?
        msg="Error copying /etc/nsswitch.dns to \"/etc/nsswitch.conf\""
        net_record_err "$msg" $err
        return $SMF_EXIT_ERR_FATAL
    fi

    /usr/bin/chmod 644 /etc/nsswitch.conf
    if [ $? -ne 0 ]; then
        err=$?
        msg="Error setting permissions on \"/etc/nsswitch.conf\""
        net_record_err "$msg" $err
        return $SMF_EXIT_ERR_FATAL
    fi

    return $SMF_EXIT_OK
}

dns_process_install()
{
    vout=`$SVCCFG -s $DNS_INSTALL_FMRI validate 2>&1`
    if [ "$vout" != "" ]; then
        msg="Validation errors in $DNS_INSTALL_FMRI:\n$vout"
        net_record_err "$msg" 0
        return $SMF_EXIT_ERR_CONFIG
    fi

    ecode=$SMF_EXIT_OK
    errs=0
    cnt=0
    pg=`$SVCPROP -p $DNS_INSTALL_PG $DNS_INSTALL_FMRI`
    if [ $? -eq 0 ]; then
        if service_is_enabled $DNS_NWAM_FMRI; then
            echo "NWAM enabled. Install static" \
                "DNS configuration ignored." | smf_console
            errs=`expr $errs +  1`
            ecode=$SMF_EXIT_ERR_CONFIG
        else
            dns_process_install_pg
            if [ $? -ne $SMF_EXIT_OK ]; then
                ecode=$?
                errs=`expr $errs +  1`
            else
                cnt=`expr $cnt +  1`
            fi

        fi
        $SVCCFG -s $DNS_INSTALL_FMRI delpg $DNS_INSTALL_PG
        $SVCCFG -s $DNS_INSTALL_FMRI refresh
    fi

    if [ $dns_install_debug -eq 1 ]; then
        if [ $errs -ne 0 ]; then
            echo "$errs errors encountered" \
                "configuring DNS on behalf of install"
        fi

        if [ $cntf -ne 0 ]; then
            echo "DNS configured on behalf of install"
        fi
    fi

    return $ecode
}

#
# Script execution starts here.
#
dns_process_install || exit $?

$SVCADM disable $DNS_INSTALL_FMRI
exit $SMF_EXIT_OK