src/hooks/configs/dhcp

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
   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 . /usr/lib/network/header-config
  23
  24 HOOK_SETTINGS=(
  25         "IPV6"
  26         "IPV4"
  27 )
  28
  29 DEFAULT_IPV6="on"
  30 DEFAULT_IPV4="on"
  31
  32 hook_check_config_settings() {
  33         assert isbool IPV6
  34         assert isbool IPV4
  35 }
  36
  37 hook_parse_cmdline() {
  38         local id="${1}"
  39         shift
  40
  41         while [ $# -gt 0 ]; do
  42                 case "${1}" in
  43                         --ipv6=*)
  44                                 IPV6="$(cli_get_bool "${1}")"
  45                                 ;;
  46                         --ipv4=*)
  47                                 IPV4="$(cli_get_bool "${1}")"
  48                                 ;;
  49                         *)
  50                                 warning "Ignoring unknown option '${1}'"
  51                                 ;;
  52                 esac
  53                 shift
  54         done
  55
  56         # Check if the user disabled ipv6 and ipv4
  57         if ! enabled IPV6 && ! enabled IPV4; then
  58                 error "You disabled IPv6 and IPv4. At least one must be enabled"
  59                 return ${EXIT_ERROR}
  60         fi
  61 }
  62
  63 hook_new() {
  64         local zone="${1}"
  65         shift
  66
  67         if zone_config_hook_is_configured ${zone} "dhcp"; then
  68                 log ERROR "You can configure the dhcp hook only once for a zone"
  69                 return ${EXIT_ERROR}
  70         fi
  71
  72         local id=$(zone_config_get_new_id ${zone})
  73         log DEBUG "ID for the config is: ${id}"
  74
  75         # Import defaults
  76         hook_set_defaults
  77
  78         if ! hook_parse_cmdline "${id}" "$@"; then
  79                 # Return an error if the parsing of the cmd line fails
  80                 return ${EXIT_ERROR}
  81         fi
  82
  83         zone_config_settings_write "${zone}" "${HOOK}" "${id}"
  84
  85         exit ${EXIT_OK}
  86 }
  87
  88 hook_up() {
  89         local zone=${1}
  90         local config=${2}
  91         shift 2
  92
  93         if ! device_exists ${zone}; then
  94                 error "Zone '${zone}' doesn't exist."
  95                 exit ${EXIT_ERROR}
  96         fi
  97
  98         zone_config_settings_read "${zone}" "${config}"
  99
 100         # Start dhclient for IPv6 on this zone if enabled.
 101         if enabled IPV6; then
 102                 dhclient_start ${zone} ipv6
 103         fi
 104
 105         # Start dhclient for IPv4 on this zone if enabled.
 106         if enabled IPV4; then
 107                 dhclient_start ${zone} ipv4
 108         fi
 109
 110         exit ${EXIT_OK}
 111 }
 112
 113 hook_down() {
 114         local zone=${1}
 115         local config=${2}
 116         shift 2
 117
 118         if ! device_exists ${zone}; then
 119                 error "Zone '${zone}' doesn't exist."
 120                 exit ${EXIT_ERROR}
 121         fi
 122
 123         # Stop dhclient for IPv6 on this zone.
 124         dhclient_stop ${zone} ipv6
 125
 126         # Stop dhclient for IPv4 on this zone.
 127         dhclient_stop ${zone} ipv4
 128
 129         exit ${EXIT_OK}
 130 }
 131
 132 hook_status() {
 133         local zone=${1}
 134         local config=${2}
 135         shift 2
 136
 137         if ! device_exists ${zone}; then
 138                 error "Zone '${zone}' doesn't exist."
 139                 exit ${EXIT_ERROR}
 140         fi
 141
 142         zone_config_settings_read "${zone}" "${config}"
 143
 144         local status
 145         if dhclient_status ${zone} ipv4 || dhclient_status ${zone} ipv6; then
 146                 status="${MSG_HOOK_UP}"
 147         else
 148                 status="${MSG_HOOK_DOWN}"
 149         fi
 150         cli_statusline 3 "${HOOK}" "${status}"
 151
 152         cli_space
 153
 154         local proto
 155         for proto in "IPv6" "IPv4"; do
 156                 local _proto=${proto,,}
 157
 158                 cli_print_fmt1 3 "${proto}"
 159
 160                 if enabled "${proto^^}"; then
 161                         cli_print_fmt1 4 "Status" "enabled"
 162
 163                         local address="$(db_get "${zone}/${_proto}/local-ip-address")"
 164                         if isset address; then
 165                                 cli_print_fmt1 4 "Address" "${address}"
 166                         fi
 167
 168                         local gateway="$(db_get "${zone}/${_proto}/remote-ip-address")"
 169                         if isset gateway; then
 170                                 cli_print_fmt1 4 "Gateway" "${gateway}"
 171                         fi
 172
 173                         local dns_servers="$(db_get "${zone}/${_proto}/domain-name-servers")"
 174                         if isset dns_servers; then
 175                                 cli_print_fmt1 4 "DNS Servers" "${dns_servers}"
 176                         fi
 177                 else
 178                         cli_print_fmt1 4 "Status" "disabled"
 179                 fi
 180
 181                 cli_space
 182
 183         done
 184
 185         exit ${EXIT_OK}
 186 }