src/hooks/ports/wireless-mesh

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2017 Michael Tremer                                           #
   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_PORT_PATTERN="${PORT_PATTERN_MESH}"
  25
  26 HOOK_SETTINGS="HOOK ADDRESS MESH_ID CHANNEL PHY PSK"
  27
  28 hook_check_settings() {
  29         assert ismac ADDRESS
  30         assert isset MESH_ID
  31         assert isset CHANNEL
  32         assert isset PHY
  33         assert ismac PHY
  34 }
  35
  36 hook_parse_cmdline() {
  37         while [ $# -gt 0 ]; do
  38                 case "${1}" in
  39                         --address=*)
  40                                 ADDRESS=$(cli_get_val "${1}")
  41                                 ;;
  42                         --channel=*)
  43                                 CHANNEL=$(cli_get_val "${1}")
  44                                 ;;
  45                         --mesh-id=*)
  46                                 MESH_ID=$(cli_get_val "${1}")
  47                                 ;;
  48                         --phy=*)
  49                                 PHY=$(cli_get_val "${1}")
  50                                 ;;
  51                         --pre-shared-key=*)
  52                                 PSK=$(cli_get_val "${1}")
  53                                 ;;
  54                         *)
  55                                 warning "Ignoring unknown argument '${1}'"
  56                                 ;;
  57                 esac
  58                 shift
  59         done
  60
  61         if ! isset MESH_ID; then
  62                 error "Please pass a mesh ID"
  63                 return ${EXIT_ERROR}
  64         fi
  65
  66         # Save address of phy do identify it again
  67         PHY=$(phy_get ${PHY})
  68         PHY=$(phy_get_address ${PHY})
  69
  70         # Generate a MAC address if none given
  71         if ! isset ADDRESS; then
  72                 ADDRESS=$(mac_generate)
  73         fi
  74
  75         # Check if channel is valid
  76         if ! wireless_channel_is_valid "${CHANNEL}"; then
  77                 log ERROR "Channel is invalid: ${CHANNEL}"
  78                 return ${EXIT_ERROR}
  79         fi
  80 }
  81
  82 hook_create() {
  83         local port="${1}"
  84         assert isset port
  85
  86         # Read settings
  87         port_settings_read "${port}" ${HOOK_SETTINGS}
  88
  89         # Check if the PHY is present.
  90         local phy="$(phy_get "${PHY}")"
  91         if ! isset phy; then
  92                 log DEBUG "phy '${PHY}' is not present"
  93                 return ${EXIT_ERROR}
  94         fi
  95
  96         # Create the wireless device, if it does not exist, yet.
  97         if ! device_exists "${port}"; then
  98                 wireless_create "${port}" \
  99                         --address="${ADDRESS}" \
 100                         --channel="${CHANNEL}" \
 101                         --phy="${phy}" \
 102                         --type="mesh-point" || return $?
 103         fi
 104
 105         # Write WPA supplicant configuration
 106         if ! wireless_mesh_to_wpa_supplicant "${port}" --mesh-id="${MESH_ID}" \
 107                         --channel="${CHANNEL}" --pre-shared-key="${PSK}"; then
 108                 log ERROR "Could not generate WPA supplicant configuration"
 109                 return ${EXIT_ERROR}
 110         fi
 111
 112         return ${EXIT_OK}
 113 }
 114
 115 hook_remove() {
 116         local port="${1}"
 117         assert isset port
 118
 119         # Remove WPA supplicant configuration
 120         wpa_supplicant_config_destroy "${port}"
 121
 122         if device_exists "${port}"; then
 123                 wireless_remove "${port}"
 124         fi
 125
 126         exit ${EXIT_OK}
 127 }
 128
 129 hook_up() {
 130         local port="${1}"
 131
 132         # Start WPA supplicant
 133         wpa_supplicant_start "${port}"
 134 }
 135
 136 hook_down() {
 137         local port="${1}"
 138
 139         wpa_supplicant_stop "${port}"
 140 }
 141
 142 hook_hotplug() {
 143         local port="${1}"
 144         assert isset port
 145
 146         port_settings_read "${port}" ${HOOK_SETTINGS}
 147
 148         case "$(hotplug_action)" in
 149                 add)
 150                         # Bring up the port when the phy is plugged in
 151                         if hotplug_event_port_uses_phy "${port}"; then
 152                                 hook_create "${port}" || exit $?
 153                         fi
 154                         ;;
 155
 156                 *)
 157                         exit ${EXIT_NOT_HANDLED}
 158                         ;;
 159         esac
 160
 161         exit ${EXIT_OK}
 162 }