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