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#!/bin/bash
# Dumb AP Mode Block
set_apmode() {
# Backup our configs
rm /etc/config/*.meshbak
cp /etc/config/wireless /etc/config/wireless.meshbak
cp /etc/config/network /etc/config/network.meshbak
cp /etc/config/dhcp /etc/config/dhcp.meshbak
cp /etc/config/system /etc/config/system.meshbak
cp /etc/config/firewall /etc/config/firewall.meshbak
uci set easymesh.config.ap_mode_enabled=1
# Disabling and stopping services not needed
for service in firewall dnsmasq odhcpd; do
if /etc/init.d/$service enabled; then
echo "Disabling and stopping $service..."
/etc/init.d/$service disable >/dev/null 2>&1
/etc/init.d/$service stop >/dev/null 2>&1
else
echo "$service is not enabled, skipping..."
fi
done
if [ $(uci -q get easymesh.config.ipmode) == "static" ]; then
# Set static IP
uci set network.lan.proto='static'
uci set network.lan.ipaddr=$(uci -q get easymesh.config.ipaddr)
uci set network.lan.netmask=$(uci -q get easymesh.config.netmask)
uci set network.lan.gateway=$(uci -q get easymesh.config.gateway)
uci set network.lan.dns=$(uci -q get easymesh.config.dns)
else
# Set LAN interface to DHCP client
uci del network.lan.ipaddr
uci del network.lan.netmask
uci set network.lan.proto='dhcp'
fi
# Delete wan interfaces
uci del network.wan
uci del network.wan6
# Set firewall disabled
uci del firewall.lan.network
uci del firewall.wan.network
# Just in case, set lan to be ignored by dhcp
uci set dhcp.lan.ignore='1'
uci del dhcp.wan
# Fix this for proper variable name
HOSTNAME=$(uci -q get easymesh.config.hostname)
# Set netmask and gateway (assuming $netmask and $dns didn't break more stuff)
uci set system.@system[0].hostname=$HOSTNAME
# Retrieve the list of ports for network.@device[0]
LAN_PORTS=$(uci get network.@device[0].ports)
# Check if 'wan' is already in the list of ports
if echo "$LAN_PORTS" | grep -q -w 'wan'; then
echo "'wan' is already in the list of ports for lan."
else
echo "'wan' is not in the list. Adding it to lan ports..."
uci add_list network.@device[0].ports='wan'
fi
# Get the radio to be used for mesh from the config
AP_RADIO=$(uci -q get easymesh.config.apRadio)
# Our config set mesh_id that we are looking for
MESH_ID=$(uci -q get easymesh.config.mesh_id)
# Check if MESH_NAME and AP_RADIO are set, if so find set our network
if [ ! -z "$AP_RADIO" ] && [ ! -z "$MESH_ID" ]; then
# Loop through the radios and update the network settings
for radio in $AP_RADIO; do
# Get the number from the radio name
radio_num="${radio#radio}"
echo "Checking wireless networks on radio${radio_num} for ssid '$MESH_ID'"
# Loop through all the wireless interfaces associated with the current radio
uci show wireless | grep "wireless\.wifinet${radio_num}" | grep '\.ssid=' | while read -r ssid_line; do
# Extract the interface identifier
wifinet=$(echo "$ssid_line" | cut -d'.' -f2)
# Extract the ssid value
interface_ssid=$(echo "$ssid_line" | cut -d'=' -f2 | tr -d "'")
if [ "$interface_ssid" = "$MESH_ID" ]; then
echo "Found target SSID '$MESH_ID' on wireless wifinet ${wifinet} on radio ${radio}"
# Get the current network setting for this wifinet
current_network=$(uci get "wireless.${wifinet}.network")
echo "Current network setting for ${wifinet}: ${current_network}"
# Check if 'private_router_batman' is part of the current network setting
if echo "$current_network" | grep -qv 'private_router_batman'; then
# 'private_router_batman' is not in the network setting, so we add it
new_network="${current_network} private_router_batman"
uci set "wireless.${wifinet}.network=${new_network}"
echo "Added 'private_router_batman' to the network setting for ${wifinet}."
uci commit wireless
else
echo "'private_router_batman' is already in the network setting for ${wifinet}."
fi
else
echo "SSID '$interface_ssid' on wireless wifinet ${wifinet} does not match target SSID '$MESH_ID'. Skipping..."
fi
done
done
fi
# Commit changes to make sure the wireless configuration is updated
uci commit
# Restart wireless
wifi reload
# Tell openwrt to reload the configs
reload_config
/etc/init.d/network reload
}
disable_apmode() {
# Config Count Must Match 5
local CONFIG_COUNT=0
# Check our configs exist, then restore them
[ -f /etc/config/wireless.meshbak ] && {
CONFIG_COUNT=$((CONFIG_COUNT+1))
}
[ -f /etc/config/network.meshbak ] && {
CONFIG_COUNT=$((CONFIG_COUNT+1))
}
[ -f /etc/config/dhcp.meshbak ] && {
CONFIG_COUNT=$((CONFIG_COUNT+1))
}
[ -f /etc/config/system.meshbak ] && {
CONFIG_COUNT=$((CONFIG_COUNT+1))
}
[ -f /etc/config/firewall.meshbak ] && {
CONFIG_COUNT=$((CONFIG_COUNT+1))
}
# Check if we have 5 configs to restore
if [ $CONFIG_COUNT -eq 5 ]; then
echo "Restoring configs from backup..."
echo "Existing configs will be moved to /etc/config/*.dumbap for reference."
rm /etc/config/*.dumbap
mv /etc/config/dhcp /etc/config/dhcp.dumbap
mv /etc/config/network /etc/config/network.dumbap
mv /etc/config/wireless /etc/config/wireless.dumbap
mv /etc/config/system /etc/config/system.dumbap
mv /etc/config/firewall /etc/config/firewall.dumbap
mv /etc/config/dhcp.meshbak /etc/config/dhcp
mv /etc/config/network.meshbak /etc/config/network
mv /etc/config/wireless.meshbak /etc/config/wireless
mv /etc/config/system.meshbak /etc/config/system
mv /etc/config/firewall.meshbak /etc/config/firewall
# Enable and start services not needed
for service in firewall dnsmasq odhcpd; do
if /etc/init.d/$service disabled; then
echo "Enabling and starting $service..."
/etc/init.d/$service enable
/etc/init.d/$service start
else
echo "$service is not disabled, skipping..."
fi
done
# Reload all the system configs
reload_config
/etc/init.d/network reload
wifi reload
else
echo "Unable to restore configs as none were found."
fi
}
clear_by_mesh_id() {
# Passed mesh_id to clear, allows us to multipurpose this function
MESH_ID_TO_CLEAR=$1
# Get the radio to be used for mesh from the config
AP_RADIO=$(uci -q get easymesh.config.apRadio)
# Check if MESH_NAME is not empty
if [ -z "$MESH_ID_TO_CLEAR" ]; then
echo "No mesh_id passed to remove from wireless."
return;
fi
# Get the output from uci show wireless
uci_output=$(uci show wireless)
# Find the mesh network with the matching mesh_id and delete it
mesh_id=$(echo "$uci_output" | grep -o "wireless\.mesh_radio[0-9]*\.mesh_id='$MESH_ID_TO_CLEAR'")
if [ ! -z "$mesh_id" ]; then
# Extract the number from the interface name
mesh_radio=$(echo "$mesh_id" | grep -o "radio[0-9]*")
# Loop through radios and delete the mesh networks
for radio in $AP_RADIO; do
# Delete the network
uci del wireless.mesh_$radio
echo "Deleted mesh network with mesh_id '$MESH_ID_TO_CLEAR' on $radio"
done
fi
# Find the wireless network with the matching ssid and delete it
ssid=$(echo "$uci_output" | grep -o "wireless\.wifinet[0-9]*\.ssid='$MESH_ID_TO_CLEAR'")
if [ ! -z "$ssid" ]; then
# Loop through radios and delete the wireless networks
for radio in $AP_RADIO; do
# Get the number from the radio name
radio_num="${radio#radio}"
# Delete the network
uci del wireless.wifinet$radio_num
echo "Deleted wireless network with ssid '$MESH_ID_TO_CLEAR' on radio$radio_num"
done
fi
# Commit changes to make sure the wireless configuration is updated
uci commit wireless
# Restart wireless to apply changes
wifi reload
echo "Wireless interfaces reloaded."
}
create_batman_network() {
# Check if bat0 already exists
if uci -q get network.bat0 >/dev/null; then
echo "bat0 interface already exists."
else
uci set network.bat0=interface
uci set network.bat0.proto='batadv'
uci set network.bat0.routing_algo='BATMAN_IV'
uci set network.bat0.aggregated_ogms='1'
uci set network.bat0.ap_isolation='0'
uci set network.bat0.bonding='1'
uci set network.bat0.bridge_loop_avoidance='1'
uci set network.bat0.distributed_arp_table='1'
uci set network.bat0.fragmentation='1'
uci set network.bat0.hop_penalty='30'
uci set network.bat0.isolation_mark='0x00000000/0x00000000'
uci set network.bat0.log_level='0'
uci set network.bat0.multicast_fanout='16'
uci set network.bat0.multicast_mode='1'
uci set network.bat0.network_coding='0'
uci set network.bat0.orig_interval='1000'
echo "bat0 interface has been created."
# Set the bat0 role
BAT_ROLE=$(uci -q get easymesh.config.role)
if [ "${BAT_ROLE}" == "server" ]; then
uci set network.bat0.gw_mode='server'
elif [ "${BAT_ROLE}" == "client" ]; then
uci set network.bat0.gw_mode='client'
else
uci set network.bat0.gw_mode='off'
fi
# Get the current list of ports for the 'br-lan' interface
LAN_PORTS=$(uci -q get network.@device[0].ports)
# Check if 'bat0' is already in the list of ports for 'br-lan'
if echo "$LAN_PORTS" | grep -q 'bat0'; then
uci del_list network.@device[0].ports='bat0'
echo "Old bat0 interface deleted from lan network."
fi
uci commit network
fi
# Check if network.private_router_batman already exists
if uci -q get network.private_router_batman >/dev/null; then
echo "network.private_router_batman interface already exists."
else
# Get the LAN bridge name
LAN_NAME=$(uci -q get network.@device[0].name)
# Setup our Private Router Batman Interface
uci set network.private_router_batman=interface
uci set network.private_router_batman.proto='batadv_hardif'
uci set network.private_router_batman.master='bat0'
uci set network.private_router_batman.device="$LAN_NAME"
uci set network.private_router_batman.mtu='1536'
uci commit network
fi
}
process_radios() {
# Get the radio to be used for mesh from the config
AP_RADIO=$(uci -q get easymesh.config.apRadio)
# Check if AP_RADIO is empty, if so exit
if [ -z "$AP_RADIO" ]; then
echo "No radio specified in the config, exiting."
exit 1
fi
# Loop through the selected radios
for CURRENT_RADIO in $AP_RADIO; do
echo "Setting up mesh networks for: $CURRENT_RADIO"
setup_mesh_radio $CURRENT_RADIO
done
}
# This is called from the process_radios function and is passed the radio to be used for mesh
setup_mesh_radio() {
CURRENT_RADIO=$1
echo "Setting up radio: $CURRENT_RADIO"
# Get the mesh name from UCI config
MESH_NAME=$(uci -q get easymesh.config.mesh_id)
# Commit changes to wireless
uci commit wireless
uci set wireless.mesh_$CURRENT_RADIO='wifi-iface'
uci set wireless.mesh_$CURRENT_RADIO.device="$CURRENT_RADIO"
uci set wireless.mesh_$CURRENT_RADIO.ifname="mesh_$CURRENT_RADIO"
uci set wireless.mesh_$CURRENT_RADIO.network='private_router_batman'
uci set wireless.mesh_$CURRENT_RADIO.mode='mesh'
uci set wireless.mesh_$CURRENT_RADIO.mesh_id="$MESH_NAME"
uci set wireless.mesh_$CURRENT_RADIO.mesh_fwding='0'
uci set wireless.mesh_$CURRENT_RADIO.mesh_rssi_threshold='0'
uci set wireless.mesh_$CURRENT_RADIO.mesh_ttl='1'
uci set wireless.mesh_$CURRENT_RADIO.mcast_rate='24000'
uci set wireless.mesh_$CURRENT_RADIO.disabled='0'
uci commit wireless
# Extact the radio number from the radio name
RADIO_NUM="${CURRENT_RADIO#radio}"
# Get the mobility domain from the config
MOBILITY_DOMAIN=$(uci -q get easymesh.config.mobility_domain)
# If mobility domain is empty, set it to a random 4 digit hex number, then set it in the config
if [ -z "$MOBILITY_DOMAIN" ]; then
MOBILITY_DOMAIN=$(hexdump -n 2 -e '2/1 "%02x"' /dev/urandom)
uci set easymesh.config.mobility_domain=$MOBILITY_DOMAIN
uci commit easymesh
fi
# Get the encryption enabled from the config
ENCRYPTION_ENABLED=$(uci -q get easymesh.config.encryption)
# Setup the interface for the mesh network
uci set wireless.wifinet$RADIO_NUM=wifi-iface
uci set wireless.wifinet$RADIO_NUM.device=$CURRENT_RADIO
uci set wireless.wifinet$RADIO_NUM.mode='ap'
uci set wireless.wifinet$RADIO_NUM.ssid=$MESH_NAME
uci set wireless.wifinet$RADIO_NUM.ieee80211r='1'
uci set wireless.wifinet$RADIO_NUM.mobility_domain=$MOBILITY_DOMAIN
uci set wireless.wifinet$RADIO_NUM.ft_over_ds='0'
uci set wireless.wifinet$RADIO_NUM.ft_psk_generate_local='0'
uci set wireless.wifinet$RADIO_NUM.disabled=0
# Check if ap_mode_enabled is enabled, if so add private_router_batman to the network
# otherwise just add lan
if [ "$(uci -q get easymesh.config.ap_mode_enabled)" = 0 ]; then
uci set wireless.wifinet$RADIO_NUM.network='lan'
else
uci set wireless.wifinet$RADIO_NUM.network='lan private_router_batman'
fi
# Get the encryption key from the config
NETWORK_KEY=$(uci -q get easymesh.config.key)
# Check if encryption is enabled and if the key is not empty
if [ "$ENCRYPTION_ENABLED" = 1 ] && [ ! -z $NETWORK_KEY ]; then
uci set wireless.mesh_$CURRENT_RADIO.encryption='sae'
uci set wireless.mesh_$CURRENT_RADIO.key=$NETWORK_KEY
uci set wireless.wifinet$RADIO_NUM.encryption='sae-mixed'
uci set wireless.wifinet$RADIO_NUM.key=$NETWORK_KEY
else
uci set wireless.mesh_$CURRENT_RADIO.encryption='none'
uci set wireless.wifinet$RADIO_NUM.encryption='none'
[ -z $NETWORK_KEY ] && echo "Encryption key is empty, so encryption was disabled."
fi
# Commit our block of changes to wireless
uci commit wireless
# Check if we need to setup kvr
ENABLE_KVR=$(uci -q get easymesh.config.kvr)
if [ "$ENABLE_KVR" = 1 ]; then
uci set wireless.wifinet$RADIO_NUM.ieee80211k='1'
uci set wireless.wifinet$RADIO_NUM.rrm_neighbor_report='1'
uci set wireless.wifinet$RADIO_NUM.rrm_beacon_report='1'
uci set wireless.wifinet$RADIO_NUM.ieee80211v='1'
uci set wireless.wifinet$RADIO_NUM.bss_transition='1'
uci set wireless.wifinet$RADIO_NUM.ieee80211r='1'
uci set wireless.wifinet$RADIO_NUM.ft_over_ds='1'
uci set wireless.wifinet$RADIO_NUM.ft_psk_generate_local='1'
uci commit wireless
else
uci -q delete wireless.wifinet$RADIO_NUM.ieee80211k
uci -q delete wireless.wifinet$RADIO_NUM.ieee80211v
uci -q delete wireless.wifinet$RADIO_NUM.ieee80211r
uci commit wireless
fi
# If KVR is enabled, setup DAWN
if [ "$ENABLE_KVR" = 1 ]; then
RSSI=$(uci -q get easymesh.config.rssi_val)
LOW_RSSI=$(uci -q get easymesh.config.low_rssi_val)
uci set dawn.@metric[0].rssi_val=$RSSI
uci set dawn.@metric[0].low_rssi_val=$LOW_RSSI
uci commit dawn
/etc/init.d/dawn enable && /etc/init.d/dawn start
else
/etc/init.d/dawn stop && /etc/init.d/dawn disable
fi
# Commit our block of changes to the configs
uci commit
}
restart_and_reload() {
# Get the radio to be used for mesh from the config
AP_RADIO=$(uci -q get easymesh.config.apRadio)
# Check if AP_RADIO is empty, if so exit
if [ -z "$AP_RADIO" ]; then
echo "No radio specified in the config, exiting."
exit 1
fi
# Enable radios
for radio in $AP_RADIO; do
echo "Enabling $radio..."
uci set wireless.$radio.disabled=0
done
uci commit wireless
# Reload wifi to apply changes without restarting all interfaces
wifi up
echo "Wireless interfaces reloaded."
# Apply network configuration changes
reload_config
echo "Network configuration reloaded."
/etc/init.d/network reload
}
disable_batman_interfaces() {
# Delete the bat0 interface
if [ "$(uci -q get network.bat0)" = "interface" ]; then
uci del network.bat0
fi
# Delete the private_router_batman network interface
if [ "$(uci -q get network.private_router_batman)" = "interface" ]; then
uci del network.private_router_batman
fi
uci commit network
reload_config
/etc/init.d/network reload
echo "Network configuration reloaded."
}
# Enable easymesh
enable_easymesh() {
# Clear old radios then set "old values"
clear_by_mesh_id "$(uci -q get easymesh.config.mesh_id)"
clear_by_mesh_id "$(uci -q get easymesh.config.old_mesh_id)"
uci set easymesh.config.old_mesh_id="$(uci -q get easymesh.config.mesh_id)"
create_batman_network
process_radios
restart_and_reload
# Set at end to be sure it worked
uci set easymesh.config.running=1
}
# Disable easymesh
disable_easymesh() {
# Clear old radios then set "old values"
clear_by_mesh_id "$(uci -q get easymesh.config.mesh_id)"
clear_by_mesh_id "$(uci -q get easymesh.config.old_mesh_id)"
uci del easymesh.config.old_mesh_id
disable_batman_interfaces
# Set at end to be sure it worked
uci del easymesh.config.running
}
if [ "$1" = "enable" ]; then
enable_easymesh
exit 0
elif [ "$1" = "disable" ]; then
disable_easymesh
exit 0
elif [ "$1" = "dumbap" ]; then
set_apmode
exit 0
elif [ "$1" = "undumb" ]; then
disable_apmode
exit 0
else
echo "Invalid argument. Please use 'start', 'stop' or 'dumbap'"
exit 1
fi