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=(
  27         "ADDRESS"
  28         "CHANNEL"
  29         "MESH_ID"
  30         "PHY"
  31         "PSK"
  32 )
  33
  34 hook_check_settings() {
  35         assert ismac ADDRESS
  36         assert isset MESH_ID
  37         assert isset CHANNEL
  38         assert isset PHY
  39         assert ismac PHY
  40 }
  41
  42 hook_parse_cmdline() {
  43         while [ $# -gt 0 ]; do
  44                 case "${1}" in
  45                         --address=*)
  46                                 ADDRESS=$(cli_get_val "${1}")
  47                                 ;;
  48                         --channel=*)
  49                                 CHANNEL=$(cli_get_val "${1}")
  50                                 ;;
  51                         --mesh-id=*)
  52                                 MESH_ID=$(cli_get_val "${1}")
  53                                 ;;
  54                         --phy=*)
  55                                 PHY=$(cli_get_val "${1}")
  56                                 ;;
  57                         --pre-shared-key=*)
  58                                 PSK=$(cli_get_val "${1}")
  59                                 ;;
  60                         *)
  61                                 warning "Ignoring unknown argument '${1}'"
  62                                 ;;
  63                 esac
  64                 shift
  65         done
  66
  67         if ! isset MESH_ID; then
  68                 error "Please pass a mesh ID"
  69                 return ${EXIT_ERROR}
  70         fi
  71
  72         # Save address of phy do identify it again
  73         PHY=$(phy_get ${PHY})
  74         PHY=$(phy_get_address ${PHY})
  75
  76         # Generate a MAC address if none given
  77         if ! isset ADDRESS; then
  78                 ADDRESS=$(mac_generate)
  79         fi
  80
  81         # Check if channel is valid
  82         if ! wireless_channel_is_valid "${CHANNEL}"; then
  83                 log ERROR "Channel is invalid: ${CHANNEL}"
  84                 return ${EXIT_ERROR}
  85         fi
  86 }
  87
  88 hook_create() {
  89         local port="${1}"
  90         assert isset port
  91
  92         # Read settings
  93         port_settings_read "${port}" ${HOOK_SETTINGS[*]}
  94
  95         # Check if the PHY is present.
  96         local phy="$(phy_get "${PHY}")"
  97         if ! isset phy; then
  98                 log DEBUG "phy '${PHY}' is not present"
  99                 return ${EXIT_ERROR}
 100         fi
 101
 102         # Create the wireless device, if it does not exist, yet.
 103         if ! device_exists "${port}"; then
 104                 wireless_create "${port}" \
 105                         --address="${ADDRESS}" \
 106                         --channel="${CHANNEL}" \
 107                         --phy="${phy}" \
 108                         --type="mesh-point" || return $?
 109         fi
 110
 111         # Write WPA supplicant configuration
 112         if ! wireless_mesh_to_wpa_supplicant "${port}" --mesh-id="${MESH_ID}" \
 113                         --channel="${CHANNEL}" --pre-shared-key="${PSK}"; then
 114                 log ERROR "Could not generate WPA supplicant configuration"
 115                 return ${EXIT_ERROR}
 116         fi
 117
 118         return ${EXIT_OK}
 119 }
 120
 121 hook_remove() {
 122         local port="${1}"
 123         assert isset port
 124
 125         # Remove WPA supplicant configuration
 126         wpa_supplicant_config_destroy "${port}"
 127
 128         if device_exists "${port}"; then
 129                 wireless_remove "${port}"
 130         fi
 131
 132         exit ${EXIT_OK}
 133 }
 134
 135 hook_up() {
 136         local port="${1}"
 137
 138         # Start WPA supplicant
 139         wpa_supplicant_start "${port}"
 140 }
 141
 142 hook_down() {
 143         local port="${1}"
 144
 145         wpa_supplicant_stop "${port}"
 146 }
 147
 148 hook_hotplug() {
 149         local port="${1}"
 150         assert isset port
 151
 152         port_settings_read "${port}" ${HOOK_SETTINGS[*]}
 153
 154         case "$(hotplug_action)" in
 155                 add)
 156                         # Bring up the port when the phy is plugged in
 157                         if hotplug_event_port_uses_phy "${port}"; then
 158                                 hook_create "${port}" || exit $?
 159                         fi
 160                         ;;
 161
 162                 *)
 163                         exit ${EXIT_NOT_HANDLED}
 164                         ;;
 165         esac
 166
 167         exit ${EXIT_OK}
 168 }