src/initscripts/init.d/dnsmasq

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin $rc_base/init.d/dnsmasq
   4 #
   5 # Description : dnsmasq init script
   6 #
   7 # Authors     : Michael Tremer - mitch@ipfire.org
   8 #
   9 # Version     : 01.00
  10 #
  11 # Notes       :
  12 #
  13 ########################################################################
  14
  15 . /etc/sysconfig/rc
  16 . ${rc_functions}
  17
  18 CACHE_SIZE=2500
  19 ENABLE_DNSSEC=1
  20 SHOW_SRV=1
  21 TRUST_ANCHOR=".,19036,8,2,49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5"
  22 TIMESTAMP_FILE="/var/ipfire/dns/dnssec-timestamp"
  23
  24 # Pull custom configuration file
  25 if [ -e "/etc/sysconfig/dnsmasq" ]; then
  26         . /etc/sysconfig/dnsmasq
  27 fi
  28
  29 function dnssec_args() {
  30         local cmdline="--dnssec --dnssec-timestamp ${TIMESTAMP_FILE}"
  31
  32         if [ -n "${TRUST_ANCHOR}" ]; then
  33                 cmdline="${cmdline} --trust-anchor=${TRUST_ANCHOR}"
  34         fi
  35
  36         echo "${cmdline}"
  37 }
  38
  39 function dns_forward_args() {
  40         local file="${1}"
  41
  42         # Do nothing if file is empty.
  43         [ -s "${file}" ] || return
  44
  45         local cmdline
  46
  47         local enabled zone server remark
  48         while IFS="," read -r enabled zone server remark; do
  49                 # Line must be enabled.
  50                 [ "${enabled}" = "on" ] || continue
  51
  52                 cmdline="${cmdline} --server=/${zone}/${server}"
  53         done < ${file}
  54
  55         echo "${cmdline}"
  56 }
  57
  58 function dns_leases_args() {
  59         eval $(/usr/local/bin/readhash /var/ipfire/dhcp/settings)
  60
  61         # If the DHCP server is enabled and DNS Update (RFC2136) is
  62         # enabled, too, we won't overlay the internal domain with
  63         # the dynamic/static leases.
  64
  65         if ([ "${ENABLE_GREEN}" = "on" ] || [ "${ENABLE_BLUE}" = "on" ]) \
  66                         && [ "${DNS_UPDATE_ENABLED}" = "on" ]; then
  67                 return
  68         fi
  69
  70         echo "-l /var/state/dhcp/dhcpd.leases"
  71 }
  72
  73 case "${1}" in
  74         start)
  75                 # kill already running copy of dnsmasq...
  76                 killproc /usr/sbin/dnsmasq 2>&1 > /dev/null
  77
  78                 boot_mesg "Starting Domain Name Service Proxy..."
  79
  80                 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  81                 ARGS="$CUSTOM_ARGS"
  82                 [ "$DOMAIN_NAME_GREEN" != "" ] && ARGS="$ARGS -s $DOMAIN_NAME_GREEN"
  83
  84                 # DHCP configuration
  85                 ARGS="${ARGS} $(dns_leases_args)"
  86
  87                 echo > /var/ipfire/red/resolv.conf # Clear it
  88                 if [ -e "/var/ipfire/red/dns1" ]; then
  89                     DNS1=$(cat /var/ipfire/red/dns1 2>/dev/null)
  90                     if [ ! -z ${DNS1} ]; then
  91                         echo "nameserver ${DNS1}" >> /var/ipfire/red/resolv.conf
  92                     fi
  93                 fi
  94                 if [ -e "/var/ipfire/red/dns2" ]; then
  95                     DNS2=$(cat /var/ipfire/red/dns2 2>/dev/null)
  96                     if [ ! -z ${DNS2} ]; then
  97                         echo "nameserver ${DNS2}" >> /var/ipfire/red/resolv.conf
  98                     fi
  99                 fi
 100                 [ -e "/var/ipfire/red/active" ] && ARGS="$ARGS -r /var/ipfire/red/resolv.conf"
 101
 102                 ARGS="$ARGS --domain=`cat /var/ipfire/main/settings |grep DOMAIN |cut -d = -f 2`"
 103
 104                 # Add custom forward dns zones.
 105                 ARGS="${ARGS} $(dns_forward_args /var/ipfire/dnsforward/config)"
 106
 107                 # Enabled DNSSEC validation
 108                 if [ "${ENABLE_DNSSEC}" -eq 1 ]; then
 109                         ARGS="${ARGS} $(dnssec_args)"
 110                 fi
 111
 112                 if [ -n "${CACHE_SIZE}" ]; then
 113                         ARGS="${ARGS} --cache-size=${CACHE_SIZE}"
 114                 fi
 115
 116                 loadproc /usr/sbin/dnsmasq ${ARGS}
 117
 118                 if [ "${SHOW_SRV}" -eq 1 ] && [ "${DNS1}" != "" -o "${DNS2}" != "" ]; then
 119                     boot_mesg "Using DNS server(s): ${DNS1} ${DNS2}"
 120                     boot_mesg_flush
 121                 fi
 122                 ;;
 123
 124         stop)
 125                 boot_mesg "Stopping Domain Name Service Proxy..."
 126                 killproc /usr/sbin/dnsmasq
 127                 ;;
 128
 129         restart)
 130                 ${0} stop
 131                 sleep 1
 132                 ${0} start
 133                 ;;
 134
 135         status)
 136                 statusproc /usr/sbin/dnsmasq
 137                 ;;
 138
 139         *)
 140                 echo "Usage: ${0} {start|stop|restart|status}"
 141                 exit 1
 142                 ;;
 143 esac
 144
 145 # End $rc_base/init.d/dnsmasq