Merge pull request #5 from Cascoda/cia-welcome

Add welcome script which also handles randomizing network parameters

_BRSetup.sh

@@ -168,6 +168,12 @@ then
 fi
 echo "Config:NCP:SocketPath \"system:${NCPAPP_PATH} 1\"" | sudo tee -a $WPANTUND_CONF > /dev/null || die "configuring ot-ncp-posix app"
 
+# Add the welcome script
+cp "${MYDIR}/conf/cascoda_welcome.sh" ~/.cascoda_welcome.sh
+if ! grep -q "cascoda_welcome.sh" ~/.bashrc ; then
+	echo "~/.cascoda_welcome.sh" >> ~/.bashrc
+fi
+
 echo ''
 echo '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
 echo '================ Cascoda Border Router Installation Complete ================'

conf/cascoda_welcome.sh

@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# Function to die with error
+die() { echo "Error: " "$*" 1>&2 ; exit 1; }
+
+# Randomize parameters if cascoda_randomize file exists
+if test -f ~/.cascoda_randomize ; then
+        # Stop wpantund if it is running
+        echo "Please wait, performing initial setup..."
+        sudo systemctl stop wpantund.service
+        sudo systemctl stop hostapd.service
+        sudo systemctl stop dnsmasq.service
+
+        #TODO: Make MYDIR work on setups where install_script may exist elsewhere.
+        MYDIR=~/install-script
+        # Generate a ULA prefix
+        ULA_PREFIX=$(hexdump -n 5 -e '1/1 "fd%02x:" 2/2 "%04x:" "\n"' /dev/random)
+        ULA_PREFIX_SITE="${ULA_PREFIX}:"
+        ULA_PREFIX_WLAN="${ULA_PREFIX}1::"
+        ULA_PREFIX_WPAN="${ULA_PREFIX}2::"
+        ULA_PREFIX_ETH0="${ULA_PREFIX}3::"
+        SED_ULA_SUB="
+        s/@ULA_PREFIX_SITE@/${ULA_PREFIX_SITE}/
+        s/@ULA_PREFIX_WLAN@/${ULA_PREFIX_WLAN}/
+        s/@ULA_PREFIX_WPAN@/${ULA_PREFIX_WPAN}/
+        s/@ULA_PREFIX_ETH0@/${ULA_PREFIX_ETH0}/
+        "
+
+        # Configure static addresses for wlan0
+        sudo mv /etc/network/interfaces.d/wlan0 /etc/network/interfaces.d/wlan0.bak
+        sudo cp "${MYDIR}/conf/wlan0" /etc/network/interfaces.d/wlan0 || die "wlan0 conf"
+        sudo sed -i -e "${SED_ULA_SUB}" /etc/network/interfaces.d/wlan0 || die "wlan0 sub"
+
+        # Configure hostapd
+        sudo mv /etc/hostapd/hostapd.conf /etc/hostapd/hostapd.conf.bak
+        sudo cp "${MYDIR}/conf/hostapd.conf" /etc/hostapd/hostapd.conf || die "hostapd conf"
+        sudo sed -i -e "${SED_ULA_SUB}" /etc/hostapd/hostapd.conf || die "hostapd sub"
+        sudo systemctl unmask hostapd.service || die "hostapd unmask"
+        sudo systemctl enable hostapd.service || die "hostapd enable"
+
+        # Configure radvd
+        sudo mv /etc/radvd.conf /etc/radvd.conf.bak
+        sudo cp "${MYDIR}/conf/radvd.conf" /etc/radvd.conf || die "radvd conf"
+        sudo sed -i -e "${SED_ULA_SUB}" /etc/radvd.conf || die "radvd sub"
+        sudo systemctl enable radvd.service
+
+        # Configure automatic prefix add
+        sudo mv /etc/ncp_state_notifier/dispatcher.d/prefix_add /etc/ncp_state_notifier/dispatcher.d/prefix_add.bak
+        sudo cp "${MYDIR}/conf/prefix_add" /etc/ncp_state_notifier/dispatcher.d/prefix_add || die "prefix_add conf"
+        sudo sed -i -e "${SED_ULA_SUB}" /etc/ncp_state_notifier/dispatcher.d/prefix_add || die "prefix_add sub"
+        sudo chmod a+x /etc/ncp_state_notifier/dispatcher.d/prefix_add || die "prefix_add chmod"
+
+        # Restart services
+        sudo systemctl start wpantund.service
+        sudo systemctl start hostapd.service
+        sudo systemctl start dnsmasq.service
+        sudo systemctl restart radvd.service
+
+        rm ~/.cascoda_randomize
+fi
+
+# Print welcome messages
+echo ''
+echo '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
+echo '==================== Cascoda Thread Border Router Active ===================='
+echo '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
+echo ''
+
+echo "Web GUI Can be accessed in a browser on the local network with http://<ip-address>"
+# Get all IP addresses with a global scope, except nat64. Use awk to format into a web address.
+ip -o address show scope global | grep -v nat64 | grep inet | awk '{n=split($4,ip, "/");printf "http://%s:80\n", ip[1]}'
+echo ""
+
+WPA_PASSPHRASE=$(grep '^wpa_passphrase' /etc/hostapd/hostapd.conf | awk '{split($0,a,"="); print a[2]}')
+AP_SSID=$(grep '^ssid' /etc/hostapd/hostapd.conf | awk '{split($0,a,"="); print a[2]}')
+
+if systemctl is-active --quiet hostapd.service
+then
+        # wifi ap is up, print details
+        printf 'WiFi AP is up! SSID: \"%s\", Password: \"%s\"\n' "${AP_SSID}" "${WPA_PASSPHRASE}"
+else
+        # wifi ap is down
+        echo "WiFi AP is down. See the systemctl hostapd.service to re-enable"
+fi
+
+echo "For quick start guide, visit https://github.com/Cascoda/cascoda-sdk/blob/master/docs/how-to/howto-thread.md"
+