third_party/ot-br-posix/repo/script/_dns64

   1 #!/bin/bash
   2 #
   3 #  Copyright (c) 2017, The OpenThread Authors.
   4 #  All rights reserved.
   5 #
   6 #  Redistribution and use in source and binary forms, with or without
   7 #  modification, are permitted provided that the following conditions are met:
   8 #  1. Redistributions of source code must retain the above copyright
   9 #     notice, this list of conditions and the following disclaimer.
  10 #  2. Redistributions in binary form must reproduce the above copyright
  11 #     notice, this list of conditions and the following disclaimer in the
  12 #     documentation and/or other materials provided with the distribution.
  13 #  3. Neither the name of the copyright holder nor the
  14 #     names of its contributors may be used to endorse or promote products
  15 #     derived from this software without specific prior written permission.
  16 #
  17 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18 #  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19 #  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20 #  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  21 #  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22 #  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23 #  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 #  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25 #  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26 #  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27 #  POSSIBILITY OF SUCH DAMAGE.
  28 #
  29 #   Description:
  30 #       This script manipulates dns64 configuration.
  31 #
  32
  33 BIND_CONF_OPTIONS=/etc/bind/named.conf.options
  34 NAT64_PREFIX=64:ff9b::/96
  35
  36 DNS64_NAMESERVER_ADDR=127.0.0.1
  37 DNS64_CONF="dns64 $(echo $NAT64_PREFIX | tr \"/\" \"/\") { clients { thread; }; recursive-only yes; };"
  38
  39 # Currently solution was verified only on raspbian and ubuntu.
  40 #
  41 without NAT64 || test "$PLATFORM" = ubuntu || test "$PLATFORM" = beagleboneblack || test "$PLATFORM" = raspbian || die "dns64 is not tested under $PLATFORM."
  42
  43 if [ "$PLATFORM" = raspbian ]; then
  44     RESOLV_CONF_HEAD=/etc/resolv.conf.head
  45 elif [ "$PLATFORM" = beagleboneblack ]; then
  46     RESOLV_CONF_HEAD=/etc/resolvconf/resolv.conf.d/head
  47 elif [ "$PLATFORM" = ubuntu ]; then
  48     RESOLV_CONF_HEAD=/etc/resolvconf/resolv.conf.d/head
  49 fi
  50
  51 dns64_update_resolvconf()
  52 {
  53     if [ "$PLATFORM" = ubuntu ]; then
  54         sudo resolvconf -u || true
  55     elif [ "$PLATFORM" = beagleboneblack ]; then
  56         sudo resolvconf -u || true
  57     elif [ "$PLATFORM" = raspbian ]; then
  58         if systemctl is-enabled NetworkManager; then
  59             sudo systemctl restart NetworkManager || true
  60         fi
  61
  62         if systemctl is-enabled dhcpcd; then
  63             sudo systemctl restart dhcpcd || true
  64         fi
  65     fi
  66 }
  67
  68 _detect_service_name()
  69 {
  70     dpkg -L bind9 | grep /etc/init.d/ | cut -d/ -f4
  71 }
  72
  73 dns64_install()
  74 {
  75     with NAT64 && with DNS64 || return 0
  76
  77     test -f $BIND_CONF_OPTIONS || die 'Cannot find bind9 configuration file!'
  78     sudo sed -i '/^};/i\\tlisten-on-v6 { thread; };' $BIND_CONF_OPTIONS
  79     sudo sed -i '/^\tlisten-on-v6 { a/d' $BIND_CONF_OPTIONS
  80     sudo sed -i '/^};/i\\tallow-query { any; };' $BIND_CONF_OPTIONS
  81     sudo sed -i '/^};/i\\tallow-recursion { thread; };' $BIND_CONF_OPTIONS
  82     sudo sed -i '/^};/i\\tforwarders { 8.8.8.8; 8.8.8.4; };' $BIND_CONF_OPTIONS
  83     sudo sed -i '/^};/i\\tforward only;' $BIND_CONF_OPTIONS
  84     sudo sed -i '/^};/i\\t'"$DNS64_CONF" $BIND_CONF_OPTIONS
  85     sudo sed -i '1s/^/acl thread {\n\tfe80::\/16;\n\tfc00::\/7;\n\t127.0.0.1;\n};\n\n/' $BIND_CONF_OPTIONS
  86
  87     service_name="$(_detect_service_name)"
  88
  89     if without DOCKER; then
  90         sudo sh -c "echo \"nameserver $DNS64_NAMESERVER_ADDR\" >> $RESOLV_CONF_HEAD"
  91     fi
  92
  93     if have systemctl; then
  94         sudo systemctl stop dnsmasq || true
  95         sudo systemctl disable dnsmasq || true
  96         sudo systemctl enable "${service_name}" || true
  97         sudo systemctl is-enabled "${service_name}" || die 'Failed to enable bind9!'
  98         sudo systemctl start "${service_name}" || die 'Failed to start bind9!'
  99     fi
 100
 101     if without DOCKER; then
 102         dns64_update_resolvconf
 103     fi
 104 }
 105
 106 dns64_uninstall()
 107 {
 108     with NAT64 && with DNS64 || return 0
 109
 110     service_name="$(_detect_service_name)"
 111
 112     dns64_stop
 113     sudo sed -i '/^\tlisten-on-v6/d' $BIND_CONF_OPTIONS
 114     sudo sed -i '/^\tallow-query/d' $BIND_CONF_OPTIONS
 115     sudo sed -i '/^\tallow-recursion/d' $BIND_CONF_OPTIONS
 116     sudo sed -i '/^\tforward/d' $BIND_CONF_OPTIONS
 117     sudo sed -i '/^};/i\\tlisten-on-v6 { any; };' $BIND_CONF_OPTIONS
 118     sudo sed -i '/^\tdns64/d' $BIND_CONF_OPTIONS
 119     sudo sed -i '/^acl/,/^options/{/^options/!d}' $BIND_CONF_OPTIONS
 120
 121     sudo sed -i '/^nameserver '$DNS64_NAMESERVER_ADDR'/d' $RESOLV_CONF_HEAD || true
 122
 123     if without DOCKER; then
 124         dns64_update_resolvconf
 125     fi
 126
 127     if have systemctl; then
 128         sudo systemctl stop "${service_name}" || true
 129         sudo systemctl disable "${service_name}" || true
 130     fi
 131 }
 132
 133 dns64_start()
 134 {
 135     with NAT64 && with DNS64 || return 0
 136
 137     service_name="$(_detect_service_name)"
 138
 139     if have systemctl; then
 140         sudo systemctl start "${service_name}" || die 'Failed to start bind9!'
 141     elif command -v service; then
 142         sudo service "${service_name}" start || die 'Failed to start bind9!'
 143     fi
 144 }
 145
 146 dns64_stop()
 147 {
 148     with NAT64 && with DNS64 || return 0
 149
 150     service_name="$(_detect_service_name)"
 151
 152     if have systemctl; then
 153         sudo systemctl stop "${service_name}" || true
 154     elif command -v service; then
 155         sudo service "${service_name}" stop || true
 156     fi
 157 }