src/hooks/configs/ipv6-static

   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_CONFIG_SETTINGS="HOOK ADDRESS PREFIX GATEWAY"
  25
  26 hook_check_config_settings() {
  27         assert isset ADDRESS
  28         assert isinteger PREFIX
  29
  30         if [ ${PREFIX} -gt 64 ]; then
  31                 error "PREFIX is greater than 64."
  32                 exit ${EXIT_ERROR}
  33         fi
  34 }
  35
  36 hook_parse_cmdline() {
  37         while [ $# -gt 0 ]; do
  38                 case "${1}" in
  39                         --address=*)
  40                                 ADDRESS=${1#--address=}
  41                                 ;;
  42                         --prefix=*)
  43                                 PREFIX=${1#--prefix=}
  44                                 ;;
  45                         --gateway=*)
  46                                 GATEWAY=${1#--gateway=}
  47                                 ;;
  48                 esac
  49                 shift
  50         done
  51
  52         if zone_config_check_same_setting "${zone}" "ipv6-static" "ADDRESS" "${ADDRESS}"; then
  53                 error "An ipv6-static config with the same IPv6 address is already configured"
  54                 exit ${EXIT_CONF_ERROR}
  55         fi
  56
  57         # Store IPv6 address in small format.
  58         ADDRESS=$(ipv6_format "${ADDRESS}")
  59
  60         if [ -n "${GATEWAY}" ]; then
  61                 GATEWAY=$(ipv6_format "${GATEWAY}")
  62         fi
  63 }
  64
  65 hook_new() {
  66         local zone=${1}
  67         shift
  68
  69         if ! hook_parse_cmdline $@; then
  70                 # Return an error if the parsing of the cmd line fails
  71                 return ${EXIT_ERROR}
  72         fi
  73
  74         zone_config_settings_write "${zone}" "${HOOK}"
  75
  76         exit ${EXIT_OK}
  77 }
  78
  79 hook_up() {
  80         local zone=${1}
  81         local config=${2}
  82         shift 2
  83
  84         if ! device_exists ${zone}; then
  85                 error "Zone '${zone}' doesn't exist."
  86                 exit ${EXIT_ERROR}
  87         fi
  88
  89         zone_config_settings_read "${zone}" "${config}"
  90
  91         ip_address_add ${zone} ${ADDRESS}/${PREFIX}
  92
  93         db_set "${zone}/ipv6/local-ip-address" "${ADDRESS}/${PREFIX}"
  94         db_set "${zone}/ipv6/remote-ip-address" "${GATEWAY}"
  95         db_set "${zone}/ipv6/active" 1
  96
  97         routing_default_update
  98
  99         exit ${EXIT_OK}
 100 }
 101
 102 hook_down() {
 103         local zone=${1}
 104         local config=${2}
 105         shift 2
 106
 107         if ! device_exists ${zone}; then
 108                 error "Zone '${zone}' doesn't exist."
 109                 exit ${EXIT_ERROR}
 110         fi
 111
 112         # Remove routing information from database.
 113         db_delete "${zone}/ipv6"
 114
 115         zone_config_settings_read "${zone}" "${config}"
 116
 117         ip_address_del ${zone} ${ADDRESS}/${PREFIX}
 118
 119         # Update routing tables.
 120         routing_default_update
 121
 122         exit ${EXIT_OK}
 123 }
 124
 125 hook_status() {
 126         local zone=${1}
 127         local config=${2}
 128         shift 2
 129
 130         if ! device_exists ${zone}; then
 131                 error "Zone '${zone}' doesn't exist."
 132                 exit ${EXIT_ERROR}
 133         fi
 134
 135         zone_config_settings_read "${zone}" "${config}"
 136
 137         # Make sure ADDRESS is as short as possible.
 138         ADDRESS=$(ipv6_format "${ADDRESS}")
 139
 140         local status
 141         if zone_has_ip ${zone} ${ADDRESS}/${PREFIX}; then
 142                 status=${MSG_HOOK_UP}
 143         else
 144                 status=${MSG_HOOK_DOWN}
 145         fi
 146         cli_statusline 3 "${HOOK}" "${status}"
 147
 148         cli_print_fmt1 3 "IPv6 address" "${ADDRESS}/${PREFIX}"
 149         if [ -n "${GATEWAY}" ]; then
 150                 cli_print_fmt1 3 "Gateway" "${GATEWAY}"
 151         fi
 152         cli_space
 153
 154         exit ${EXIT_OK}
 155 }