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