batman-adv: Enhance functionality.

[people/stevee/network.git] / hooks / ports / batman-adv-port

diff --git a/hooks/ports/batman-adv-port b/hooks/ports/batman-adv-port
new file mode 100755 (executable)
index 0000000..0d44ba3
--- /dev/null
+++ b/hooks/ports/batman-adv-port
@@ -0,0 +1,221 @@
+#!/bin/bash
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2013 Michael Tremer                                           #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+. /usr/lib/network/header-port
+
+HOOK_SETTINGS="HOOK ADDRESS MESH_ID SSID CHANNEL COUNTRY_CODE PHY"
+
+ADDRESS=$(mac_generate)
+CHANNEL=1
+COUNTRY_CODE="US"
+MESH_ID=
+SSID=
+
+# batman-adv inserts an additional header of 28 bytes, so we set the MTU
+# to 1528, that normal ethernet packets with 1500 bytes can pass the network.
+MTU=1528
+
+function _check() {
+       assert isset ADDRESS
+       assert ismac ADDRESS
+       assert isset CHANNEL
+       assert isset COUNTRY_CODE
+       assert isset MESH_ID
+       assert ismac MESH_ID
+       assert isset PHY
+       assert ismac PHY
+       assert isset SSID
+}
+
+function _create() {
+       while [ $# -gt 0 ]; do
+               case "${1}" in
+                       --address=*)
+                               ADDRESS=$(cli_get_val ${1})
+                               ;;
+                       --channel=*)
+                               CHANNEL=$(cli_get_val ${1})
+                               ;;
+                       --country-code=*)
+                               COUNTRY_CODE=$(cli_get_val ${1})
+                               ;;
+                       --phy=*)
+                               PHY=$(cli_get_val ${1})
+                               ;;
+                       --ssid=*)
+                               SSID=$(cli_get_val ${1})
+                               ;;
+                       --mesh-id=*)
+                               MESH_ID=$(cli_get_val ${1})
+                               ;;
+                       *)
+                               warning "Ignoring unknown argument '${1}'"
+                               ;;
+               esac
+               shift
+       done
+
+       # Save address of phy do identify it again
+       PHY=$(phy_get ${PHY})
+       PHY=$(phy_get_address ${PHY})
+
+       local port=$(port_find_free ${PORT_PATTERN_BATMAN_ADV_PORT})
+       assert isset port
+
+       config_write $(port_file ${port}) ${HOOK_SETTINGS}
+
+       exit ${EXIT_OK}
+}
+
+function _edit() {
+       local port=${1}
+       assert isset port
+       shift
+
+       config_read $(port_file ${port})
+
+       while [ $# -gt 0 ]; do
+               case "${1}" in
+                       --channel=*)
+                               CHANNEL=$(cli_get_val ${1})
+                               ;;
+                       --country-code=*)
+                               COUNTRY_CODE=$(cli_get_val ${1})
+                               ;;
+                       --mesh-id=*)
+                               MESH_ID=$(cli_get_val ${1})
+                               ;;
+                       --ssid=*)
+                               SSID=$(cli_get_val ${1})
+                               ;;
+                       *)
+                               warning "Unknown argument '${1}'"
+                               ;;
+               esac
+               shift
+       done
+
+       config_write $(port_file ${port}) ${HOOK_SETTINGS}
+
+       exit ${EXIT_OK}
+}
+
+function _up() {
+       local port=${1}
+       assert isset port
+
+       config_read $(port_file ${port})
+
+       # Check if the PHY is present.
+       local phy=$(phy_get ${PHY})
+       if ! isset phy; then
+               log DEBUG "phy '${PHY}' is not present"
+               exit ${EXIT_ERROR}
+       fi
+
+       # Create the wireless device, if it does not exist, yet.
+       if ! device_exists ${port}; then
+               wireless_create ${port} \
+                       --address="${ADDRESS}" \
+                       --phy="${phy}" \
+                       --type="ibss"
+       fi
+
+       # Set the MTU.
+       device_set_mtu "${port}" "${MTU}"
+
+       # Join the ad-hoc network.
+       wireless_ibss_join "${port}" --channel="${CHANNEL}" \
+               --bssid="${MESH_ID}" --essid="${SSID}"
+
+       # Add the device as a batman-adv device.
+       local parent="$(_find_parent ${port})"
+       if isset parent; then
+               batman_adv_interface_add "${parent}" "${port}"
+       fi
+
+       exit ${EXIT_OK}
+}
+
+function _down() {
+       local port=${1}
+       assert isset port
+
+       # Remove the batman-adv device.
+       batman_adv_interface_del "${port}"
+
+       # Leave the ad-hoc network.
+       wireless_ibss_leave "${port}"
+
+       # Remove the device if it is still present.
+       if device_exists ${port}; then
+               wireless_remove ${port}
+       fi
+
+       exit ${EXIT_OK}
+}
+
+function _hotplug() {
+       local port=${1}
+       assert isset port
+
+       local phy=${2}
+       assert isset phy
+
+       assert port_exists ${port}
+
+       # Read configuration of port.
+       config_read $(port_file ${port})
+
+       # Get the address of the phy.
+       local phy_address=$(phy_get_address ${phy})
+
+       # Check if the phy is the same we have
+       # read from the configuration file.
+       if [ "${PHY}" = "${phy_address}" ]; then
+               # Bring up the device.
+               port_up "${port}"
+       fi
+
+       exit ${EXIT_OK}
+}
+
+function _find_parent() {
+       local port=${1}
+       assert isset port
+
+       local p child hook
+       for p in $(ports_get); do
+               hook=$(port_get_hook "${p}")
+
+               if [ "${hook}" = "batman-adv" ]; then
+                       for child in $(port_get_children "${p}"); do
+                               log ERROR "child=${child}"
+                               [ "${child}" = "${port}" ] || continue
+
+                               print "${p}"
+                               return ${EXIT_OK}
+                       done
+               fi
+       done
+
+       return ${EXIT_ERROR}
+}