src/hooks/ports/bonding

   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-port
  23
  24 HOOK_SETTINGS="ADDRESS MIIMON MODE OFFLOADING SLAVES"
  25
  26 DEFAULT_MIIMON=100
  27 DEFAULT_MODE="balance-rr"
  28
  29 hook_check_settings() {
  30         assert isset ADDRESS
  31         assert ismac ADDRESS
  32
  33         #assert isset SLAVES
  34         assert isinteger MIIMON
  35 }
  36
  37 hook_parse_cmdline() {
  38         while [ $# -gt 0 ]; do
  39                 case "${1}" in
  40                         --address=*)
  41                                 ADDRESS="$(cli_get_val "${1}")"
  42
  43                                 if ! mac_is_valid "${ADDRESS}"; then
  44                                         error "Invalid MAC address: ${ADDRESS}"
  45                                         return ${EXIT_ERROR}
  46                                 fi
  47                                 ;;
  48
  49                         --miimon=*)
  50                                 MIIMON=$(cli_get_val "${1}")
  51                                 ;;
  52                         --mode=*)
  53                                 MODE=$(cli_get_val "${1}")
  54                                 ;;
  55                         --offloading=*)
  56                                 OFFLOADING="$(cli_get_val "${1}")"
  57
  58                                 if enabled OFFLOADING; then
  59                                         OFFLOADING="on"
  60                                 elif disabled OFFLOADING; then
  61                                         OFFLOADING="off"
  62                                 else
  63                                         error "Invalid value for offloading: ${OFFLOADING}"
  64                                         return ${EXIT_ERROR}
  65                                 fi
  66                                 ;;
  67                         +*)
  68                                 local slave=$(cli_get_val "${1:1}")
  69
  70                                 if port_exists "${slave}"; then
  71                                         if list_match "${slave}" ${SLAVES}; then
  72                                                 warning "Port ${slave} is already enslaved"
  73                                         else
  74                                                 list_append SLAVES "${slave}"
  75                                         fi
  76                                 else
  77                                         warning "Port ${slave} does not exist"
  78                                 fi
  79                                 ;;
  80                         -*)
  81                                 local slave=$(cli_get_val "${1:1}")
  82                                 if ! list_remove SLAVES "${slave}"; then
  83                                         warning "Port ${slave} is not a slave of this bonding device"
  84                                 fi
  85                                 ;;
  86                         *)
  87                                 warning "Unknown argument '${1}'"
  88                                 ;;
  89                 esac
  90                 shift
  91         done
  92
  93         if isset ADDRESS; then
  94                 if ! ismac ADDRESS; then
  95                         error "The given MAC address is invalid: ${ADDRESS}"
  96                         return ${EXIT_ERROR}
  97                 fi
  98         else
  99                 ADDRESS=$(mac_generate)
 100         fi
 101 }
 102
 103 hook_new() {
 104         if ! hook_parse_cmdline "$@"; then
 105                 return ${EXIT_ERROR}
 106         fi
 107
 108         # Find a new name
 109         local port=$(port_find_free ${BONDING_PORT_PATTERN})
 110         assert isset port
 111
 112         # Save configuration
 113         if port_settings_write "${port}" ${HOOK_SETTINGS}; then
 114                 log INFO "New port ${port} has been created"
 115         else
 116                 error "Could not save configuration for ${port}"
 117                 return ${EXIT_ERROR}
 118         fi
 119
 120         return ${EXIT_OK}
 121 }
 122
 123 hook_edit() {
 124         local port=${1}
 125
 126         if ! hook_default_edit "$@"; then
 127                 return ${EXIT_ERROR}
 128         fi
 129
 130         # If the master device is up, make sure that all
 131         # slaves are up, too
 132         if device_exists "${port}"; then
 133                 # Setting the mode requires us to destroy the device
 134                 # and to recreate it again.
 135                 local mode=$(bonding_get_mode "${port}")
 136                 if [ "${mode}" != "${MODE}" ]; then
 137                         port_restart "${port}"
 138                         return ${EXIT_OK}
 139                 fi
 140
 141                 # Set address
 142                 device_set_address "${port}" "${ADDRESS}"
 143
 144                 # Set miimon
 145                 bonding_set_miimon "${port}" "${MIIMON}"
 146
 147                 local slave
 148                 for slave in ${SLAVES}; do
 149                         if device_exists "${slave}"; then
 150                                 bonding_enslave_device "${port}" "${slave}"
 151                         else
 152                                 port_create "${slave}"
 153                         fi
 154                 done
 155         fi
 156 }
 157
 158 hook_create() {
 159         local port="${1}"
 160         assert isset port
 161
 162         # Exit silently if the device already exists
 163         device_exists "${port}" && exit ${EXIT_OK}
 164
 165         port_settings_read "${port}" ${HOOK_SETTINGS}
 166
 167         # Create the bonding devices
 168         bonding_create "${port}" \
 169                 --address="${ADDRESS}" \
 170                 --mode="${MODE}" || exit ${EXIT_ERROR}
 171
 172         bonding_set_miimon "${port}" "${MIIMON}"
 173
 174         exit ${EXIT_OK}
 175 }
 176
 177 hook_remove() {
 178         local port="${1}"
 179         assert isset port
 180
 181         port_settings_read "${port}" ${HOOK_SETTINGS}
 182
 183         # Remove the bonding device
 184         if device_exists "${port}"; then
 185                 bonding_remove "${port}"
 186         fi
 187 }
 188
 189 hook_up() {
 190         local port="${1}"
 191         assert isset port
 192
 193         port_settings_read "${port}" ${HOOK_SETTINGS}
 194
 195         # Auto-enable or disable hardware offloading
 196         if ! isset OFFLOADING || enabled OFFLOADING; then
 197                 offloading_auto "${port}"
 198         else
 199                 offloading_disable_all "${port}"
 200         fi
 201
 202         # Execute the default action
 203         hook_default_up "${port}"
 204
 205         # Bring up all slaves
 206         local slave
 207         for slave in $(unquote ${SLAVES}); do
 208                 port_up "${slave}"
 209         done
 210 }
 211
 212 hook_down() {
 213         local port="${1}"
 214         assert isset port
 215
 216         port_settings_read "${port}" ${HOOK_SETTINGS}
 217
 218         # Bring down all slaves
 219         local slave
 220         for slave in $(unquote ${SLAVES}); do
 221                 port_down "${slave}"
 222         done
 223
 224         # Execute the default action
 225         hook_default_down "${port}"
 226 }
 227
 228 hook_hotplug() {
 229         local port="${1}"
 230         assert isset port
 231
 232         case "$(hotplug_action)" in
 233                 add)
 234                         # Handle events of the same interface
 235                         if hotplug_event_port_is_interface "${port}"; then
 236                                 # Read configuration
 237                                 port_settings_read "${port}" ${HOOK_SETTINGS}
 238
 239                                 # Bring up all slaves
 240                                 # Attach those which already exist and try to create
 241                                 # those which don't exist yet. They will be attached
 242                                 # in their own hotplug event.
 243                                 local slave
 244                                 for slave in $(unquote ${SLAVES}); do
 245                                         if device_exists "${slave}"; then
 246                                                 bonding_enslave_device "${port}" "${slave}"
 247                                         else
 248                                                 port_create "${slave}"
 249                                         fi
 250                                 done
 251
 252                                 exit ${EXIT_OK}
 253
 254                         # Handle slave devices that have just been created and
 255                         # attach them.
 256                         elif hotplug_event_interface_is_slave_of_port "${port}"; then
 257                                 bonding_enslave_device "${port}" "${INTERFACE}"
 258
 259                                 # If the parent device has been set up, we will
 260                                 # bring up the slave device as well.
 261                                 if device_is_up "${port}"; then
 262                                         port_up "${INTERFACE}"
 263                                 fi
 264                         fi
 265
 266                         exit ${EXIT_OK}
 267                         ;;
 268
 269                 remove)
 270                         if hotplug_event_port_is_interface "${port}"; then
 271                                 # Bring down all slaves after the parent device went away
 272                                 local slave
 273                                 for slave in $(port_get_slaves "${port}"); do
 274                                         port_remove "${slave}"
 275                                 done
 276
 277                                 exit ${EXIT_OK}
 278                         fi
 279                         ;;
 280         esac
 281
 282         exit ${EXIT_NOT_HANDLED}
 283 }