From 17e43b42b896d974ad4f7e480b66eba502af8c40 Mon Sep 17 00:00:00 2001
From: ache <ache@ache.one>
Date: Mon, 4 Feb 2019 15:36:10 +0100
Subject: Merge tethapp and autoDHCP

---
 autoDHCP.sh | 140 +++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 125 insertions(+), 15 deletions(-)

(limited to 'autoDHCP.sh')

diff --git a/autoDHCP.sh b/autoDHCP.sh
index c03fdae..67109bc 100755
--- a/autoDHCP.sh
+++ b/autoDHCP.sh
@@ -2,10 +2,15 @@
 
 interface="";
 server="dhcpd"
-ip="10.5.5.11"
+ip="10.5.6.11"
 range="24"
 interface_internet=""
 
+# For Wifi teth
+ssid=🦄
+passphrase=chocolat
+
+
 # Todo : List interface ✓
 #        Select first ✓
 #        Select dhcpd or dnsmasq ✓
@@ -18,6 +23,14 @@ interface_internet=""
 
 # Default interface is the first non-wireless interfaces (sorted alpha-num)
 
+function guess_wifi {
+    for i in `ls /sys/class/net/`; do
+        if [ -d "/sys/class/net/$i/wireless" ] ; then
+            _interface="$i"
+        fi
+    done
+    echo "${_interface}"
+}
 function guess_nowifi {
     for i in `ls /sys/class/net/`; do
         if [ ! -d "/sys/class/net/$i/wireless" ] ; then 
@@ -40,24 +53,26 @@ function guess_internet {
                     cut -d' ' -f 2)
 }
 
-
-
-
-
-
 if [ "$1" == "dns" ] ; then
     server="dnsmasq"
     shift
 elif [ "$1" == "teth" ] ; then
   interface_internet=$(guess_internet)
   shift
-elif [ "$1" == "teth_dns" ] ; then
+elif [ "$1" == "teth_dns" ] || [ "$1" == "teth_dnsmasq" ] ; then
   interface_internet=$(guess_internet)
   server="dnsmasq"
   shift
-fi
-
-if [ "$1" == "help" -o "$1" == "-h" -o "$1" == "--help" ] ; then
+elif [ "$1" == "teth_wifi_dnsmasq" ] ; then
+  interface_internet=$(guess_internet)
+  interface=$(guess_wifi)
+  server="dnsmasq"
+  hotspot="yes"
+  shift
+elif [ "$1" == "quit" ] || [ "$1" == "close" ] ; then
+  sudo pkill dnsmasq
+  exit
+elif [ "$1" == "help" ] || [ "$1" == "-h" ] || [ "$1" == "--help" ] ; then
     echo 'Usage : autoDHCP [interface] [ip/range] [dns]'
     echo ''
     echo 'You also put the server type at the start of the command'
@@ -65,10 +80,10 @@ if [ "$1" == "help" -o "$1" == "-h" -o "$1" == "--help" ] ; then
     echo '> autoDHCP wlp3s0 10.5.5.11/24'
     echo '> autoDHCP eth0 192.168.0.1 dns'
     echo '> autoDHCP dns eth0 192.168.0.1/30'
+    exit
 fi
 
 
-
 if [ "$1" ] ; then
     interface="$1"
     echo "Interface set to ${interface}"
@@ -100,6 +115,12 @@ if [ -z "$interface" ] ; then
   guess_nowifi
 fi
 
+
+#########################################################################
+######################## ACTION #########################################
+#########################################################################
+
+
 sudo ip l set "$interface" up
 sudo ip a r "${ip}/${range}" dev "$interface"
 #sudo ip r a "${ip}/${range}" dev "$interface" src "${ip}"
@@ -109,6 +130,7 @@ if [ "$server" == "dhcpd" ] ; then
 elif [ "$server" == "dnsmasq" ] ; then
 
     echo 'Configure dnsmasq'
+    pidFile=$(mktemp)
 
     ip_start=$(echo "${ip}" | sed 's/\(\([0-9]\{1,3\}\.\)\{3\}\)[0-9]\{1,3\}/\1/')
     ip_start_tmp=$(echo "${ip}" | sed 's/\(\([0-9]\{1,3\}\.\)\{3\}\)//')
@@ -121,11 +143,16 @@ elif [ "$server" == "dnsmasq" ] ; then
     echo "
         interface=${interface}
         listen-address=${ip}
-        bind-interfaces
         dhcp-range=${dhcp_range}"
     ) > /tmp/dnsmasq.conf
-    sudo dnsmasq --conf-file=/tmp/dnsmasq.conf
-
+    if sudo dnsmasq --conf-file=/tmp/dnsmasq.conf --pid-file="${pidFile}"; then
+      echo 'Ok dnsmasq prêt'
+      echo "PID : ${pidFile}"
+    else
+      echo 'Erreur : Impossible de démarrer dnsmasq'
+      echo 'Abandon'
+      exit 1
+    fi
 else
     echo "Server name ${server} unknow"
 fi
@@ -139,5 +166,88 @@ if [ -n "$interface_internet" ] ; then
   sudo iptables -A FORWARD -i "${interface}" -o "${interface_internet}" -j ACCEPT
 fi
 
+if [ "${hotspot}" == "yes" ] ; then
+  echo "Configuration de hostapd"
+
+  cat <<< $(
+  echo "
+interface=${interface}
+ssid=${ssid}
+
+wpa=1
+wpa_passphrase=${passphrase}
+
+channel=1
+hw_mode=g
+
+logger_syslog=-1
+logger_syslog_level=2
+logger_stdout=-1
+logger_stdout_level=2
+
+ctrl_interface=/var/run/hostapd
+ctrl_interface_group=0
+
+beacon_int=100
+dtim_period=2
+max_num_sta=255
+rts_threshold=2347
+fragm_threshold=2346
+macaddr_acl=0
+auth_algs=3
+ignore_broadcast_ssid=0
+
+wmm_enabled=1
+wmm_ac_bk_cwmin=4
+wmm_ac_bk_cwmax=10
+wmm_ac_bk_aifs=7
+wmm_ac_bk_txop_limit=0
+wmm_ac_bk_acm=0
+wmm_ac_be_aifs=3
+wmm_ac_be_cwmin=4
+wmm_ac_be_cwmax=10
+wmm_ac_be_txop_limit=0
+wmm_ac_be_acm=0
+wmm_ac_vi_aifs=2
+wmm_ac_vi_cwmin=3
+wmm_ac_vi_cwmax=4
+wmm_ac_vi_txop_limit=94
+wmm_ac_vi_acm=0
+wmm_ac_vo_aifs=2
+wmm_ac_vo_cwmin=2
+wmm_ac_vo_cwmax=3
+wmm_ac_vo_txop_limit=47
+wmm_ac_vo_acm=0
+
+vht_oper_chwidth=3
+eap_message=hello
+eapol_key_index_workaround=0
+eap_server=0"
+  ) > /tmp/hostapd.conf
+
+  echo "Lancement du hostpot Wifi"
+  if sudo hostapd /tmp/hostapd.conf ; then
+      echo 'Yeah, i wish you enjoyed it'
+  else
+      echo 'Error: there is a problem with hostapd'
+  fi
+else
+  echo 'Should be ready ;)'
+  sleep 100d
+fi
+
+echo 'Clean des iptables'
+sudo iptables --flush
+sudo iptables -t nat --flush
+
+echo 'Clean config'
+
+rm /tmp/dnsmasq_hotspot.conf /tmp/hostapd.conf /tmp/dnsmasq.conf 2> /dev/null
+
+if [ "${server}" == "dnsmasq" ] ; then
+  echo 'Switch off dnsmasq'
+  sudo kill $(cat $pidFile)
+fi
 
-echo 'Should be ready ;)'
+echo 'Bye 💋'
+echo 'Have a nice day <3'
-- 
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