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                         --gateway=*)
  40                                 GATEWAY=${1#--gateway=}
  41                                 ;;
  42                         *:*/*)
  43                                 ADDRESS=$(ip_split_prefix "${1}")
  44                                 PREFIX=$(ip_get_prefix "${1}")
  45                                 ;;
  46                         *)
  47                                 error "Invalid argument: ${1}"
  48                                 return ${EXIT_ERROR}
  49                                 ;;
  50                 esac
  51                 shift
  52         done
  53
  54         if ! isset ADDRESS; then
  55                 error "You need to pass an address"
  56                 return ${EXIT_ERROR}
  57         fi
  58
  59         if ! isset PREFIX; then
  60                 error "You need to pass a prefix"
  61                 return ${EXIT_ERROR}
  62         fi
  63
  64         if ! ipv6_is_valid "${ADDRESS}"; then
  65                 error "${ADDRESS} is not a valid IPv6 address"
  66                 return ${EXIT_ERROR}
  67         fi
  68
  69         if ! ipv6_prefix_is_valid "${PREFIX}"; then
  70                 error "${PREFIX} is not a valid IPv6 prefix"
  71                 return ${EXIT_ERROR}
  72         fi
  73
  74         if zone_config_check_same_setting "${zone}" "ipv6-static" "ADDRESS" "${ADDRESS}"; then
  75                 error "An ipv6-static config with the same IPv6 address is already configured"
  76                 exit ${EXIT_CONF_ERROR}
  77         fi
  78
  79         # Store IPv6 address in small format.
  80         ADDRESS=$(ipv6_format "${ADDRESS}")
  81
  82         if [ -n "${GATEWAY}" ]; then
  83                 GATEWAY=$(ipv6_format "${GATEWAY}")
  84         fi
  85 }
  86
  87 hook_new() {
  88         local zone=${1}
  89         shift
  90
  91         if ! hook_parse_cmdline "$@"; then
  92                 # Return an error if the parsing of the cmd line fails
  93                 return ${EXIT_ERROR}
  94         fi
  95
  96         zone_config_settings_write "${zone}" "${HOOK}"
  97
  98         exit ${EXIT_OK}
  99 }
 100
 101 hook_up() {
 102         local zone=${1}
 103         local config=${2}
 104         shift 2
 105
 106         if ! device_exists ${zone}; then
 107                 error "Zone '${zone}' doesn't exist."
 108                 exit ${EXIT_ERROR}
 109         fi
 110
 111         zone_config_settings_read "${zone}" "${config}"
 112
 113         ip_address_add ${zone} ${ADDRESS}/${PREFIX}
 114
 115         db_set "${zone}/ipv6/local-ip-address" "${ADDRESS}/${PREFIX}"
 116         db_set "${zone}/ipv6/remote-ip-address" "${GATEWAY}"
 117         db_set "${zone}/ipv6/active" 1
 118
 119         routing_default_update
 120
 121         exit ${EXIT_OK}
 122 }
 123
 124 hook_down() {
 125         local zone=${1}
 126         local config=${2}
 127         shift 2
 128
 129         if ! device_exists ${zone}; then
 130                 error "Zone '${zone}' doesn't exist."
 131                 exit ${EXIT_ERROR}
 132         fi
 133
 134         # Remove routing information from database.
 135         db_delete "${zone}/ipv6"
 136
 137         zone_config_settings_read "${zone}" "${config}"
 138
 139         ip_address_del ${zone} ${ADDRESS}/${PREFIX}
 140
 141         # Update routing tables.
 142         routing_default_update
 143
 144         exit ${EXIT_OK}
 145 }
 146
 147 hook_status() {
 148         local zone=${1}
 149         local config=${2}
 150         shift 2
 151
 152         if ! device_exists ${zone}; then
 153                 error "Zone '${zone}' doesn't exist."
 154                 exit ${EXIT_ERROR}
 155         fi
 156
 157         zone_config_settings_read "${zone}" "${config}"
 158
 159         # Make sure ADDRESS is as short as possible.
 160         ADDRESS=$(ipv6_format "${ADDRESS}")
 161
 162         local status
 163         if zone_has_ip ${zone} ${ADDRESS}/${PREFIX}; then
 164                 status=${MSG_HOOK_UP}
 165         else
 166                 status=${MSG_HOOK_DOWN}
 167         fi
 168         cli_statusline 3 "${HOOK}" "${status}"
 169
 170         cli_print_fmt1 3 "IPv6 address" "${ADDRESS}/${PREFIX}"
 171         if [ -n "${GATEWAY}" ]; then
 172                 cli_print_fmt1 3 "Gateway" "${GATEWAY}"
 173         fi
 174         cli_space
 175
 176         exit ${EXIT_OK}
 177 }