src/hooks/ports/ethernet

   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 # DEVICE equals the actual MAC address of the device.
  25 # If ADDRESS is set, the device will get ADDRESS set for its MAC address.
  26
  27 HOOK_SETTINGS="ADDRESS ADVERTISED_LINK_SPEEDS DEVICE OFFLOADING MTU"
  28
  29 hook_check_settings() {
  30         assert ismac DEVICE
  31
  32         if isset ADDRESS; then
  33                 assert ismac ADDRESS
  34         fi
  35
  36         if isset MTU; then
  37                 assert mtu_is_valid "ethernet" "${MTU}"
  38         fi
  39
  40         if isset MODES; then
  41                 local mode
  42                 for mode in ${MODES}; do
  43                         assert [ -n "${DEVICE_LINK_SPEEDS[${mode}]}" ]
  44                 done
  45         fi
  46 }
  47
  48 hook_parse_cmdline() {
  49         while [ $# -gt 0 ]; do
  50                 case "${1}" in
  51                         --address=*)
  52                                 ADDRESS="$(cli_get_val "${1}")"
  53
  54                                 if ! mac_is_valid "${ADDRESS}"; then
  55                                         error "Invalid MAC address: ${ADDRESS}"
  56                                         return ${EXIT_ERROR}
  57                                 fi
  58                                 ;;
  59
  60                         --advertised-link-speeds=*)
  61                                 ADVERTISED_LINK_SPEEDS="$(cli_get_val "${1}")"
  62
  63                                 local speed
  64                                 for speed in ${ADVERTISED_LINK_SPEEDS}; do
  65                                         if [ -z "${DEVICE_LINK_SPEEDS[${speed}]}" ]; then
  66                                                 error "Unsupported link speed: ${speed}"
  67                                                 return ${EXIT_ERROR}
  68                                         fi
  69                                 done
  70                                 ;;
  71
  72                         --mtu=*)
  73                                 MTU="$(cli_get_val "${1}")"
  74
  75                                 if ! mtu_is_valid "ethernet" "${MTU}"; then
  76                                         error "Invalid MTU: ${MTU}"
  77                                         return ${EXIT_ERROR}
  78                                 fi
  79                                 ;;
  80
  81                         --offloading=*)
  82                                 OFFLOADING="$(cli_get_val "${1}")"
  83
  84                                 if enabled OFFLOADING; then
  85                                         OFFLOADING="on"
  86                                 elif disabled OFFLOADING; then
  87                                         OFFLOADING="off"
  88                                 else
  89                                         error "Invalid value for offloading: ${OFFLOADING}"
  90                                         return ${EXIT_ERROR}
  91                                 fi
  92                                 ;;
  93
  94                         *)
  95                                 error "Unknown argument: ${1}"
  96                                 return ${EXIT_ERROR}
  97                                 ;;
  98                 esac
  99                 shift
 100         done
 101 }
 102
 103 # This function is only called automatically by hotplug to create
 104 # a new ethernet port.
 105 hook_new() {
 106         local port="${1}"
 107         assert isset port
 108
 109         local device="${2}"
 110         assert isset device
 111
 112         local DEVICE="$(device_get_address "${device}")"
 113
 114         if ! port_settings_write "${port}" ${HOOK_SETTINGS}; then
 115                 log ERROR "Could not write settings for port ${port}"
 116                 return ${EXIT_ERROR}
 117         fi
 118
 119         return ${EXIT_OK}
 120 }
 121
 122 hook_create() {
 123         return ${EXIT_OK}
 124 }
 125
 126 hook_up() {
 127         local port="${1}"
 128
 129         local ${HOOK_SETTINGS}
 130         if ! port_settings_read "${port}" ${HOOK_SETTINGS}; then
 131                 log ERROR "Could not read settings for port ${port}"
 132                 return ${EXIT_ERROR}
 133         fi
 134
 135         # Set MAC address, if needed
 136         if isset ADDRESS; then
 137                 device_set_address "${port}" "${ADDRESS}"
 138         fi
 139
 140         # Set MTU
 141         if isset MTU; then
 142                 device_set_mtu "${port}" "${MTU}"
 143         else
 144                 device_set_mtu "${port}" "${DEFAULT_MTU}"
 145         fi
 146
 147         # Set link speeds
 148         if isset ADVERTISED_LINK_SPEEDS; then
 149                 device_advertise_link_speeds "${port}" ${ADVERTISED_LINK_SPEEDS}
 150         fi
 151
 152         # Auto-enable or disable hardware offloading
 153         if ! isset OFFLOADING || enabled OFFLOADING; then
 154                 offloading_auto "${port}"
 155         else
 156                 offloading_disable_all "${port}"
 157         fi
 158
 159         # Bring up the device
 160         device_set_up "${port}"
 161
 162         exit ${EXIT_OK}
 163 }
 164
 165 hook_remove() {
 166         exit ${EXIT_OK}
 167 }
 168
 169 hook_hotplug_rename() {
 170         local port=${1}
 171         assert isset port
 172
 173         local device=${2}
 174         assert isset device
 175
 176         # Read in the conifguration file.
 177         port_settings_read "${port}" ${HOOK_SETTINGS}
 178
 179         # Get the current MAC address of the device.
 180         local address=$(device_get_address ${device})
 181         assert isset address
 182
 183         # Check if the address matches with the configuration.
 184         if list_match "${address}" ${DEVICE} ${ADDRESS}; then
 185                 log DEBUG "Device '${device}' equals port '${port}'."
 186                 exit ${EXIT_OK}
 187         fi
 188
 189         log DEBUG "Device '${device}' does not equal port '${port}'."
 190         exit ${EXIT_ERROR}
 191 }