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_val "${1}")"
  63
  64                                 if enabled OFFLOADING; then
  65                                         OFFLOADING="on"
  66                                 elif disabled OFFLOADING; then
  67                                         OFFLOADING="off"
  68                                 else
  69                                         error "Invalid value for offloading: ${OFFLOADING}"
  70                                         return ${EXIT_ERROR}
  71                                 fi
  72                                 ;;
  73                         +*)
  74                                 local slave=$(cli_get_val "${1:1}")
  75
  76                                 if port_exists "${slave}"; then
  77                                         if list_match "${slave}" ${SLAVES}; then
  78                                                 warning "Port ${slave} is already enslaved"
  79                                         else
  80                                                 list_append SLAVES "${slave}"
  81                                         fi
  82                                 else
  83                                         warning "Port ${slave} does not exist"
  84                                 fi
  85                                 ;;
  86                         -*)
  87                                 local slave=$(cli_get_val "${1:1}")
  88                                 if ! list_remove SLAVES "${slave}"; then
  89                                         warning "Port ${slave} is not a slave of this bonding device"
  90                                 fi
  91                                 ;;
  92                         *)
  93                                 warning "Unknown argument '${1}'"
  94                                 ;;
  95                 esac
  96                 shift
  97         done
  98
  99         if isset ADDRESS; then
 100                 if ! ismac ADDRESS; then
 101                         error "The given MAC address is invalid: ${ADDRESS}"
 102                         return ${EXIT_ERROR}
 103                 fi
 104         else
 105                 ADDRESS=$(mac_generate)
 106         fi
 107 }
 108
 109 hook_new() {
 110         if ! hook_parse_cmdline "$@"; then
 111                 return ${EXIT_ERROR}
 112         fi
 113
 114         # Find a new name
 115         local port=$(port_find_free ${BONDING_PORT_PATTERN})
 116         assert isset port
 117
 118         # Save configuration
 119         if port_settings_write "${port}"; then
 120                 log INFO "New port ${port} has been created"
 121         else
 122                 error "Could not save configuration for ${port}"
 123                 return ${EXIT_ERROR}
 124         fi
 125
 126         return ${EXIT_OK}
 127 }
 128
 129 hook_edit() {
 130         local port=${1}
 131
 132         if ! hook_default_edit "$@"; then
 133                 return ${EXIT_ERROR}
 134         fi
 135
 136         # If the master device is up, make sure that all
 137         # slaves are up, too
 138         if device_exists "${port}"; then
 139                 # Setting the mode requires us to destroy the device
 140                 # and to recreate it again.
 141                 local mode=$(bonding_get_mode "${port}")
 142                 if [ "${mode}" != "${MODE}" ]; then
 143                         port_restart "${port}"
 144                         return ${EXIT_OK}
 145                 fi
 146
 147                 # Set address
 148                 device_set_address "${port}" "${ADDRESS}"
 149
 150                 # Set miimon
 151                 bonding_set_miimon "${port}" "${MIIMON}"
 152
 153                 local slave
 154                 for slave in ${SLAVES}; do
 155                         if device_exists "${slave}"; then
 156                                 bonding_enslave_device "${port}" "${slave}"
 157                         else
 158                                 port_create "${slave}"
 159                         fi
 160                 done
 161         fi
 162 }
 163
 164 hook_create() {
 165         local port="${1}"
 166         assert isset port
 167
 168         # Exit silently if the device already exists
 169         device_exists "${port}" && exit ${EXIT_OK}
 170
 171         port_settings_read "${port}"
 172
 173         # Create the bonding devices
 174         bonding_create "${port}" \
 175                 --address="${ADDRESS}" \
 176                 --mode="${MODE}" || exit ${EXIT_ERROR}
 177
 178         bonding_set_miimon "${port}" "${MIIMON}"
 179
 180         exit ${EXIT_OK}
 181 }
 182
 183 hook_remove() {
 184         local port="${1}"
 185         assert isset port
 186
 187         port_settings_read "${port}"
 188
 189         # Remove the bonding device
 190         if device_exists "${port}"; then
 191                 bonding_remove "${port}"
 192         fi
 193 }
 194
 195 hook_up() {
 196         local port="${1}"
 197         assert isset port
 198
 199         port_settings_read "${port}"
 200
 201         # Auto-enable or disable hardware offloading
 202         if ! isset OFFLOADING || enabled OFFLOADING; then
 203                 offloading_auto "${port}"
 204         else
 205                 offloading_disable_all "${port}"
 206         fi
 207
 208         # Execute the default action
 209         hook_default_up "${port}"
 210
 211         # Bring up all slaves
 212         local slave
 213         for slave in $(unquote ${SLAVES}); do
 214                 port_up "${slave}"
 215         done
 216 }
 217
 218 hook_down() {
 219         local port="${1}"
 220         assert isset port
 221
 222         port_settings_read "${port}"
 223
 224         # Bring down all slaves
 225         local slave
 226         for slave in $(unquote ${SLAVES}); do
 227                 port_down "${slave}"
 228         done
 229
 230         # Execute the default action
 231         hook_default_down "${port}"
 232 }
 233
 234 hook_hotplug() {
 235         local port="${1}"
 236         assert isset port
 237
 238         case "$(hotplug_action)" in
 239                 add)
 240                         # Handle events of the same interface
 241                         if hotplug_event_port_is_interface "${port}"; then
 242                                 # Read configuration
 243                                 port_settings_read "${port}"
 244
 245                                 # Bring up all slaves
 246                                 # Attach those which already exist and try to create
 247                                 # those which don't exist yet. They will be attached
 248                                 # in their own hotplug event.
 249                                 local slave
 250                                 for slave in $(unquote ${SLAVES}); do
 251                                         if device_exists "${slave}"; then
 252                                                 bonding_enslave_device "${port}" "${slave}"
 253                                         else
 254                                                 port_create "${slave}"
 255                                         fi
 256                                 done
 257
 258                                 exit ${EXIT_OK}
 259
 260                         # Handle slave devices that have just been created and
 261                         # attach them.
 262                         elif hotplug_event_interface_is_slave_of_port "${port}"; then
 263                                 bonding_enslave_device "${port}" "${INTERFACE}"
 264
 265                                 # If the parent device has been set up, we will
 266                                 # bring up the slave device as well.
 267                                 if device_is_up "${port}"; then
 268                                         port_up "${INTERFACE}"
 269                                 fi
 270                         fi
 271
 272                         exit ${EXIT_OK}
 273                         ;;
 274
 275                 remove)
 276                         if hotplug_event_port_is_interface "${port}"; then
 277                                 # Bring down all slaves after the parent device went away
 278                                 local slave
 279                                 for slave in $(port_get_slaves "${port}"); do
 280                                         port_remove "${slave}"
 281                                 done
 282
 283                                 exit ${EXIT_OK}
 284                         fi
 285                         ;;
 286         esac
 287
 288         exit ${EXIT_NOT_HANDLED}
 289 }