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#!/system/bin/sh
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#
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# Copyright (C) 2017 Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Set SSID and password of your wifi access point
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# WPA-Personal authentication method is assumed
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SSID="yourSSID"
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PASSWORD="yourPassword"
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# OpenNIC DNS servers
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DNS1="193.183.98.154"
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DNS2="87.98.175.85"
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# wpa_supplicant
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workdir="/data/misc/wifi"
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iface="wlan0"
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socket="$workdir/sockets/"
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pid="$workdir/pidfile"
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wpa_comm="wpa_cli -p$socket -P$pid -i$iface"
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sup_pid=$(pidof wpa_supplicant)
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dhcp_pid=$(pidof dhcpcd)
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if ! [ -z "$sup_pid" ]; then
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killall -SIGINT wpa_supplicant
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fi
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if ! [ -z "$dhcp_pid" ]; then
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killall -SIGINT dhcpcd
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fi
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sleep 1s
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ndc network destroy 1
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ndc interface clearaddrs "$iface"
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wpa_supplicant -B -dd -i"$iface" -C"$socket" -P"$pid" -I/system/etc/wifi/wpa_supplicant_overlay.conf -e/data/misc/wifi/entropy.bin
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sleep 1s
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$wpa_comm add_network
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$wpa_comm set_network 0 ssid '"'"$SSID"'"'
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$wpa_comm set_network 0 psk '"'"$PASSWORD"'"'
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$wpa_comm select_network 0
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$wpa_comm enable_network 0
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$wpa_comm reassociate
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# negotiate a dhcp leasing
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dhcpcd "$iface"
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# get gateway
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gateway=$(ip route show 0.0.0.0/0 dev wlan0 | cut -d\ -f3)
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ndc network create 1
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ndc network interface add 1 "$iface"
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ndc network route add 1 "$iface" 0.0.0.0/0 "$gateway"
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ndc resolver setnetdns 1 "" "$DNS1" "$DNS2"
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ndc network default set 1
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