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