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} ${interface})
  30         service_start ${service}
  31 }
  32
  33 dhclient_stop() {
  34         local interface=${1}
  35         local proto=${2}
  36
  37         local service=$(dhclient_proto2service ${proto} ${interface})
  38         service_stop ${service}
  39 }
  40
  41 dhclient_status() {
  42         local interface=${1}
  43         local proto=${2}
  44
  45         local service=$(dhclient_proto2service ${proto} ${interface})
  46         service_status ${service}
  47 }
  48
  49 dhclient_proto2service() {
  50         local proto=${1}
  51         assert isset proto
  52
  53         local interface=${2}
  54         assert isset interface
  55
  56         local service
  57
  58         case "${proto}" in
  59                 ipv4)
  60                         service="dhclient4@${interface}.service"
  61                         ;;
  62                 ipv6)
  63                         service="dhclient6@${interface}.service"
  64                         ;;
  65                 *)
  66                         return ${EXIT_ERROR}
  67                         ;;
  68         esac
  69
  70         assert isset service
  71
  72         echo "${service}"
  73         return ${EXIT_OK}
  74 }
  75
  76 dhclient_write_config() {
  77         local interface=${1}
  78         local file=${2}
  79         shift 2
  80
  81         assert isset interface
  82         assert isset file
  83
  84         local hostname=${HOSTNAME%%.*}
  85         local vendor=$(distro_get_pretty_name)
  86
  87         while [ $# -gt 0 ]; do
  88                 case "${1}" in
  89                         --hostname=*)
  90                                 hostname=$(cli_get_val ${1})
  91                                 ;;
  92                         --vendor=*)
  93                                 vendor=$(cli_get_val ${1})
  94                                 ;;
  95                         *)
  96                                 log WARNING $"Unknown configuration option passed: ${1}."
  97                                 ;;
  98                 esac
  99                 shift
 100         done
 101
 102         # Clear configuration file (if any).
 103         mkdir -p $(dirname ${file}) 2>/dev/null
 104         : > ${file}
 105
 106         # Print the header.
 107         (       echo "#"
 108                 echo "# This is a dhclient daemon configuration file for ${interface}."
 109                 echo "# THIS FILE IS AUTOMATICALLY GENERATED AND WILL OVERWRITE"
 110                 echo "# ANY CUSTOM CHANGES!"
 111                 echo "#"
 112                 echo "# $(date -u)"
 113                 echo "#"
 114                 echo
 115         ) >>${file}
 116
 117         # Global options.
 118         echo "send vendor-class-identifier \"${vendor}\";" >>${file}
 119         echo
 120
 121         # Interface options.
 122         (
 123                 echo "interface \"${interface}\" {"
 124
 125                 if isset hostname; then
 126                         echo "  send host-name \"${hostname}\";"
 127                 fi
 128
 129                 echo "}"
 130         ) >>${file}
 131
 132         return ${EXIT_OK}
 133 }