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 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                                 if ! mac_is_valid "${ADDRESS}"; then
  45                                         error "Invalid MAC address: ${ADDRESS}"
  46                                         return ${EXIT_ERROR}
  47                                 fi
  48                                 ;;
  49
  50                         --miimon=*)
  51                                 MIIMON=$(cli_get_val "${1}")
  52                                 ;;
  53                         --mode=*)
  54                                 MODE=$(cli_get_val "${1}")
  55                                 ;;
  56                         --offloading=*)
  57                                 OFFLOADING="$(cli_get_val "${1}")"
  58
  59                                 if enabled OFFLOADING; then
  60                                         OFFLOADING="on"
  61                                 elif disabled OFFLOADING; then
  62                                         OFFLOADING="off"
  63                                 else
  64                                         error "Invalid value for offloading: ${OFFLOADING}"
  65                                         return ${EXIT_ERROR}
  66                                 fi
  67                                 ;;
  68                         +*)
  69                                 local slave=$(cli_get_val "${1:1}")
  70
  71                                 if port_exists "${slave}"; then
  72                                         if list_match "${slave}" ${SLAVES}; then
  73                                                 warning "Port ${slave} is already enslaved"
  74                                         else
  75                                                 list_append SLAVES "${slave}"
  76                                         fi
  77                                 else
  78                                         warning "Port ${slave} does not exist"
  79                                 fi
  80                                 ;;
  81                         -*)
  82                                 local slave=$(cli_get_val "${1:1}")
  83                                 if ! list_remove SLAVES "${slave}"; then
  84                                         warning "Port ${slave} is not a slave of this bonding device"
  85                                 fi
  86                                 ;;
  87                         *)
  88                                 warning "Unknown argument '${1}'"
  89                                 ;;
  90                 esac
  91                 shift
  92         done
  93
  94         if isset ADDRESS; then
  95                 if ! ismac ADDRESS; then
  96                         error "The given MAC address is invalid: ${ADDRESS}"
  97                         return ${EXIT_ERROR}
  98                 fi
  99         else
 100                 ADDRESS=$(mac_generate)
 101         fi
 102 }
 103
 104 hook_new() {
 105         if ! hook_parse_cmdline "$@"; then
 106                 return ${EXIT_ERROR}
 107         fi
 108
 109         # Find a new name
 110         local port=$(port_find_free ${BONDING_PORT_PATTERN})
 111         assert isset port
 112
 113         # Save configuration
 114         if port_settings_write "${port}" ${HOOK_SETTINGS}; then
 115                 log INFO "New port ${port} has been created"
 116         else
 117                 error "Could not save configuration for ${port}"
 118                 return ${EXIT_ERROR}
 119         fi
 120
 121         return ${EXIT_OK}
 122 }
 123
 124 hook_edit() {
 125         local port=${1}
 126
 127         if ! hook_default_edit "$@"; then
 128                 return ${EXIT_ERROR}
 129         fi
 130
 131         # If the master device is up, make sure that all
 132         # slaves are up, too
 133         if device_exists "${port}"; then
 134                 # Setting the mode requires us to destroy the device
 135                 # and to recreate it again.
 136                 local mode=$(bonding_get_mode "${port}")
 137                 if [ "${mode}" != "${MODE}" ]; then
 138                         port_restart "${port}"
 139                         return ${EXIT_OK}
 140                 fi
 141
 142                 # Set address
 143                 device_set_address "${port}" "${ADDRESS}"
 144
 145                 # Set miimon
 146                 bonding_set_miimon "${port}" "${MIIMON}"
 147
 148                 local slave
 149                 for slave in ${SLAVES}; do
 150                         if device_exists "${slave}"; then
 151                                 bonding_enslave_device "${port}" "${slave}"
 152                         else
 153                                 port_create "${slave}"
 154                         fi
 155                 done
 156         fi
 157 }
 158
 159 hook_create() {
 160         local port="${1}"
 161         assert isset port
 162
 163         # Exit silently if the device already exists
 164         device_exists "${port}" && exit ${EXIT_OK}
 165
 166         port_settings_read "${port}" ${HOOK_SETTINGS}
 167
 168         # Create the bonding devices
 169         bonding_create "${port}" \
 170                 --address="${ADDRESS}" \
 171                 --mode="${MODE}" || exit ${EXIT_ERROR}
 172
 173         bonding_set_miimon "${port}" "${MIIMON}"
 174
 175         exit ${EXIT_OK}
 176 }
 177
 178 hook_remove() {
 179         local port="${1}"
 180         assert isset port
 181
 182         port_settings_read "${port}" ${HOOK_SETTINGS}
 183
 184         # Remove the bonding device
 185         if device_exists "${port}"; then
 186                 bonding_remove "${port}"
 187         fi
 188 }
 189
 190 hook_up() {
 191         local port="${1}"
 192         assert isset port
 193
 194         port_settings_read "${port}" ${HOOK_SETTINGS}
 195
 196         # Auto-enable or disable hardware offloading
 197         if ! isset OFFLOADING || enabled OFFLOADING; then
 198                 offloading_auto "${port}"
 199         else
 200                 offloading_disable_all "${port}"
 201         fi
 202
 203         # Execute the default action
 204         hook_default_up "${port}"
 205
 206         # Bring up all slaves
 207         local slave
 208         for slave in $(unquote ${SLAVES}); do
 209                 port_up "${slave}"
 210         done
 211 }
 212
 213 hook_down() {
 214         local port="${1}"
 215         assert isset port
 216
 217         port_settings_read "${port}" ${HOOK_SETTINGS}
 218
 219         # Bring down all slaves
 220         local slave
 221         for slave in $(unquote ${SLAVES}); do
 222                 port_down "${slave}"
 223         done
 224
 225         # Execute the default action
 226         hook_default_down "${port}"
 227 }
 228
 229 hook_hotplug() {
 230         local port="${1}"
 231         assert isset port
 232
 233         case "$(hotplug_action)" in
 234                 add)
 235                         # Handle events of the same interface
 236                         if hotplug_event_port_is_interface "${port}"; then
 237                                 # Read configuration
 238                                 port_settings_read "${port}" ${HOOK_SETTINGS}
 239
 240                                 # Bring up all slaves
 241                                 # Attach those which already exist and try to create
 242                                 # those which don't exist yet. They will be attached
 243                                 # in their own hotplug event.
 244                                 local slave
 245                                 for slave in $(unquote ${SLAVES}); do
 246                                         if device_exists "${slave}"; then
 247                                                 bonding_enslave_device "${port}" "${slave}"
 248                                         else
 249                                                 port_create "${slave}"
 250                                         fi
 251                                 done
 252
 253                                 exit ${EXIT_OK}
 254
 255                         # Handle slave devices that have just been created and
 256                         # attach them.
 257                         elif hotplug_event_interface_is_slave_of_port "${port}"; then
 258                                 bonding_enslave_device "${port}" "${INTERFACE}"
 259
 260                                 # If the parent device has been set up, we will
 261                                 # bring up the slave device as well.
 262                                 if device_is_up "${port}"; then
 263                                         port_up "${INTERFACE}"
 264                                 fi
 265                         fi
 266
 267                         exit ${EXIT_OK}
 268                         ;;
 269
 270                 remove)
 271                         if hotplug_event_port_is_interface "${port}"; then
 272                                 # Bring down all slaves after the parent device went away
 273                                 local slave
 274                                 for slave in $(port_get_slaves "${port}"); do
 275                                         port_remove "${slave}"
 276                                 done
 277
 278                                 exit ${EXIT_OK}
 279                         fi
 280                         ;;
 281         esac
 282
 283         exit ${EXIT_NOT_HANDLED}
 284 }