functions.dhclient

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2012  IPFire Network Development Team                         #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 dhclient_start() {
  23         local interface=${1}
  24         local proto=${2}
  25
  26         assert isset interface
  27         assert device_exists ${interface}
  28
  29         local service=$(dhclient_proto2service ${proto})
  30         assert isset service
  31
  32         service_start "${service}@${interface}"
  33 }
  34
  35 dhclient_stop() {
  36         local interface=${1}
  37         local proto=${2}
  38
  39         local service=$(dhclient_proto2service ${proto})
  40         assert isset service
  41
  42         service_stop "${service}@${interface}"
  43 }
  44
  45 dhclient_proto2service() {
  46         local proto=${1}
  47         assert isset proto
  48
  49         local service
  50
  51         case "${proto}" in
  52                 ipv4)
  53                         service="dhclient4"
  54                         ;;
  55                 ipv6)
  56                         service="dhclient6"
  57                         ;;
  58                 *)
  59                         return ${EXIT_ERROR}
  60                         ;;
  61         esac
  62
  63         assert isset service
  64
  65         echo "${service}"
  66         return ${EXIT_OK}
  67 }
  68
  69 dhclient_write_config() {
  70         local interface=${1}
  71         local file=${2}
  72         shift 2
  73
  74         assert isset interface
  75         assert isset file
  76
  77         local hostname=${HOSTNAME%%.*}
  78         local vendor=$(distro_get_pretty_name)
  79
  80         while [ $# -gt 0 ]; do
  81                 case "${1}" in
  82                         --hostname=*)
  83                                 hostname=$(cli_get_val ${1})
  84                                 ;;
  85                         --vendor=*)
  86                                 vendor=$(cli_get_val ${1})
  87                                 ;;
  88                         *)
  89                                 log WARNING $"Unknown configuration option passed: ${1}."
  90                                 ;;
  91                 esac
  92                 shift
  93         done
  94
  95         # Clear configuration file (if any).
  96         mkdir -p $(dirname ${file}) 2>/dev/null
  97         : > ${file}
  98
  99         # Print the header.
 100         (       echo "#"
 101                 echo "# This is a dhclient daemon configuration file for ${interface}."
 102                 echo "# THIS FILE IS AUTOMATICALLY GENERATED AND WILL OVERWRITE"
 103                 echo "# ANY CUSTOM CHANGES!"
 104                 echo "#"
 105                 echo "# $(date -u)"
 106                 echo "#"
 107                 echo
 108         ) >>${file}
 109
 110         # Global options.
 111         echo "send vendor-class-identifier \"${vendor}\";" >>${file}
 112         echo
 113
 114         # Interface options.
 115         (
 116                 echo "interface \"${interface}\" {"
 117
 118                 if isset hostname; then
 119                         echo "  send host-name \"${hostname}\";"
 120                 fi
 121
 122                 echo "}"
 123         ) >>${file}
 124
 125         return ${EXIT_OK}
 126 }