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#!/bin/sh /etc/rc.common
USE_PROCD=1
START=99
STOP=01
CONFIGURATION=dcwapd
VERBOSE=1
# NOTE: all functions write the result to the $result variable
result=
get_channelsets()
{
# default to empty
result=
channelsets=$(uci show $CONFIGURATION | grep "=channel-set$")
for channelset in $channelsets; do
channelset=$(echo "$channelset" | sed -rn "s/$CONFIGURATION\.(.*)=.*/\1/p")
result="$result $channelset"
done
if [ $VERBOSE -eq 1 ]; then
echo "Channel Sets: $result" 2>&1 | logger
fi
}
# $1 : the channel set name
get_channelset_enabled()
{
# default to disabled
result=0
if [ -n "$1" ]; then
result=$(uci get $CONFIGURATION."$1".enabled)
fi
if [ $VERBOSE -eq 1 ]; then
echo "Channel Set \"$1\" Enabled: $result" 2>&1 | logger
fi
}
# $1 : the channel set name
get_primary_bridge()
{
result=
if [ -n "$1" ]; then
result=$(uci get $CONFIGURATION."$1".bridge)
fi
if [ $VERBOSE -eq 1 ]; then
echo "Channel Set \"$1\" Primary Bridge: $result" 2>&1 | logger
fi
}
# $1 : the channel set name
get_datachannels()
{
# default to empty
result=
if [ -n "$1" ]; then
result=$(uci get $CONFIGURATION."$1".data_channels)
fi
if [ $VERBOSE -eq 1 ]; then
echo "Channel Set \"$1\" Data Channels: $result" 2>&1 | logger
fi
}
# $1 : the wlan interface name
get_wifi_iface_num()
{
result=
if [ -n "$1" ];then
#result=$(echo "$1" | sed -n "s/wlan//p")
result=$(echo "$1" | sed -rn "s/wlan([0-9]*).*/\1/p")
fi
}
# $1 : the bridge name
get_bridge_network_name()
{
result=
if [ -n "$1" ];then
result=$(echo "$1" | sed -n "s/br-//p")
fi
}
# $1 : the wlan interface name
set_iface_init_state()
{
result=
if [ -n "$1" ]; then
iface=$1
# need to extract the "X" from wlanX
get_wifi_iface_num "$iface"
iface_num=$result
if [ -n "$iface_num" ]; then
# get the iface network
init_net=$(uci get wireless.@wifi-iface[$iface_num].network)
if [ -n "$init_net" ]; then
# if the iface network is a bridge, but doesn't start with "br-"
# I think we need to prepend it?
net_type=$(uci get network."$init_net".type)
if [ -n "$net_type" ] && [ "$net_type" = "bridge" ]; then
prefix_ok=$(echo "$init_net" | grep "^br-")
if [ -z "$prefix_ok" ]; then
init_net="br-$init_net"
fi
fi
fi
# make sure that the init_net section exists
init_net_section=$(uci get dcwapd.init_net)
if [ "$init_net_section" != "init_net" ]; then
# the section did not exist
uci set dcwapd.init_net=init_net
fi
# save the initial network
if [ $VERBOSE -eq 1 ]; then
echo "Saving '$iface' initial network '$init_net'" 2>&1 | logger
fi
uci set $CONFIGURATION.init_net."$iface"="$init_net"
uci commit
# save the initial network in the result variable
result=$init_net
fi
fi
}
# $1 : the wlan interface name
get_iface_init_state()
{
result=
if [ -n "$1" ];then
init_net=$(uci get $CONFIGURATION.init_net."$iface")
# if the response starts with "uci: ", it was an error not the real result
err=$(echo "$init_net" | grep "^uci: ")
if [ -z "$err" ]; then
# no error, set the result
result=$init_net
if [ $VERBOSE -eq 1 ]; then
echo "Got '$iface' initial network '$init_net'" 2>&1 | logger
fi
fi
fi
}
# $1 : the name of the data channel name to bring up
datachannel_up()
{
if [ -n "$1" ]; then
bridge=$(uci get $CONFIGURATION."$1".bridge)
interfaces=$(uci get $CONFIGURATION."$1".interfaces)
if [ $VERBOSE -eq 1 ]; then
echo "Creating Data Channel Bridge: $bridge" 2>&1 | logger
fi
get_bridge_network_name "$bridge"
netname=$result
if [ -n "$netname" ]; then
uci set network."$netname"=interface
uci set network."$netname".type=bridge
uci set network."$netname".proto=static
uci set network."$netname".bridge_empty='1'
fi
# create the bridge
uci commit
/etc/init.d/network reload
for iface in $interfaces; do
# if iface is in a bridge, the bridge name should be stored in result
set_iface_init_state "$iface"
init_bridge=$result
# update uci with the new bridge info
get_wifi_iface_num "$iface"
iface_num=$result
if [ -n "$iface_num" ]; then
uci set wireless.@wifi-iface[$iface_num].network="$netname"
fi
# manually put the interface into the data bridge
# if iface is in a bridge, remove it before adding it to the data bridge
if [ -n "$init_bridge" ]; then
brctl delif "$init_bridge" "$iface" 2>&1 | logger
fi
brctl addif "$bridge" "$iface" 2>&1 | logger
done
# commit uci changes and reload the network
uci commit
/etc/init.d/network reload
#/etc/init.d/network restart
# while [ 1 ]; do
# ifconfig "$bridge" > /dev/null 2>&1
# if [ $? == 0 ]; then
# break;
# fi
# sleep 1
# done
fi
}
# $1 : the name of the data channel to bring down
datachannel_down()
{
if [ -n "$1" ]; then
bridge=$(uci get $CONFIGURATION."$1".bridge)
interfaces=$(uci get $CONFIGURATION."$1".interfaces)
for iface in $interfaces; do
if [ $VERBOSE -eq 1 ]; then
echo "Deconfiguring Data Channel Interface: $iface" 2>&1 | logger
fi
# manually remove the interface from the data bridge
brctl delif "$bridge" "$iface" 2>&1 | logger
get_iface_init_state "$iface"
init_bridge=$result
if [ -n "$init_bridge" ]; then
# manually move the interface back to the original bridge
brctl addif "$init_bridge" "$iface" 2>&1 | logger
# update uci with the new bridge and interface configuration
get_wifi_iface_num "$iface"
iface_num=$result
get_bridge_network_name "$init_bridge"
netname=$result
if [ -n "$iface_num" ] && [ -n "$netname" ]; then
uci set wireless.@wifi-iface[$iface_num].network="$netname"
fi
fi
done
if [ $VERBOSE -eq 1 ]; then
echo "Deconfiguring Data Channel Bridge: $bridge" 2>&1 | logger
fi
# delete the bridge from uci
get_bridge_network_name "$bridge"
netname=$result
if [ -n "$netname" ]; then
uci delete network."$netname"
fi
# commit uci changes and reload the network
uci commit
/etc/init.d/network reload
#`/etc/init.d/network restart`
fi
}
start_service() {
config_load "$CONFIGURATION"
local enabled
config_get enabled general enabled
if [ "$enabled" != "1" ]; then
echo "dcwapd is disabled in UCI"
return 1
fi
get_channelsets
# get the list of channel sets
channelsets=$result
for channelset in $channelsets; do
if [ -n "$channelset" ]; then
get_channelset_enabled "$channelset"
enabled=$result
if [ "$enabled" = "1" ]; then
# the channel set is enabled
# get the list of data channels used by the channel set
get_datachannels "$channelset"
datachannels=$result
for datachannel in $datachannels; do
datachannel_up "$datachannel"
done
fi
fi
done
procd_open_instance
procd_set_param file /etc/config/dcwapd
procd_set_param command dcwapd
procd_set_param stdout 1
procd_set_param stderr 1
procd_close_instance
}
stop_service() {
get_channelsets
# get the list of channel sets
channelsets=$result
for channelset in $channelsets; do
if [ -n "$channelset" ]; then
# we don't care if it is enabled, tear it down
# get_channelset_enabled $channelset
# enabled=$result
# if [ $enabled = "1" ]; then
# # the channel set is enabled
# get the list of data channels used by the channel set
get_datachannels "$channelset"
datachannels=$result
for datachannel in $datachannels; do
datachannel_down "$datachannel"
done
# fi
fi
done
sleep 1
}
service_triggers()
{
procd_add_reload_trigger dcwapd
}
reload_service() {
stop
start
}