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