P2P: Add an example p2p-action script for udhcpc/udhcpd

wpa_supplicant/examples/p2p-action-udhcp.sh

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+#!/bin/sh
+
+IFNAME=$1
+CMD=$2
+
+kill_daemon() {
+    NAME=$1
+    PF=$2
+
+    if [ ! -r $PF ]; then
+	return
+    fi
+
+    PID=`cat $PF`
+    if [ $PID -gt 0 ]; then
+	if ps $PID | grep -q $NAME; then
+	    kill $PID
+	fi
+    fi
+    rm $PF
+}
+
+if [ "$CMD" = "P2P-GROUP-STARTED" ]; then
+    GIFNAME=$3
+    if [ "$4" = "GO" ]; then
+	kill_daemon udhcpc /var/run/udhcpc-$GIFNAME.pid
+	ifconfig $GIFNAME 192.168.42.1 up
+	udhcpd /etc/udhcpd-p2p.conf
+    fi
+    if [ "$4" = "client" ]; then
+	kill_daemon udhcpc /var/run/udhcpc-$GIFNAME.pid
+	kill_daemon udhcpd /var/run/udhcpd-$GIFNAME.pid
+	udhcpc -i $GIFNAME -p /var/run/udhcpc-$GIFNAME.pid \
+		-s /etc/udhcpc.script
+    fi
+fi
+
+if [ "$CMD" = "P2P-GROUP-REMOVED" ]; then
+    GIFNAME=$3
+    if [ "$4" = "GO" ]; then
+	kill_daemon udhcpd /var/run/udhcpd-$GIFNAME.pid
+	ifconfig $GIFNAME 0.0.0.0
+    fi
+    if [ "$4" = "client" ]; then
+	kill_daemon udhcpc /var/run/udhcpc-$GIFNAME.pid
+	ifconfig $GIFNAME 0.0.0.0
+    fi
+fi
+
+if [ "$CMD" = "P2P-CROSS-CONNECT-ENABLE" ]; then
+    GIFNAME=$3
+    UPLINK=$4
+    # enable NAT/masquarade $GIFNAME -> $UPLINK
+    iptables -P FORWARD DROP
+    iptables -t nat -A POSTROUTING -o $UPLINK -j MASQUERADE
+    iptables -A FORWARD -i $UPLINK -o $GIFNAME -m state --state RELATED,ESTABLISHED -j ACCEPT
+    iptables -A FORWARD -i $GIFNAME -o $UPLINK -j ACCEPT
+    sysctl net.ipv4.ip_forward=1
+fi
+
+if [ "$CMD" = "P2P-CROSS-CONNECT-DISABLE" ]; then
+    GIFNAME=$3
+    UPLINK=$4
+    # disable NAT/masquarade $GIFNAME -> $UPLINK
+    sysctl net.ipv4.ip_forward=0
+    iptables -t nat -D POSTROUTING -o $UPLINK -j MASQUERADE
+    iptables -D FORWARD -i $UPLINK -o $GIFNAME -m state --state RELATED,ESTABLISHED -j ACCEPT
+    iptables -D FORWARD -i $GIFNAME -o $UPLINK -j ACCEPT
+fi

wpa_supplicant/examples/udhcpd-p2p.conf

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+# Sample udhcpd configuration file (/etc/udhcpd.conf)
+
+# The start and end of the IP lease block
+
+start 		192.168.42.20	#default: 192.168.0.20
+end		192.168.42.254	#default: 192.168.0.254
+
+
+# The interface that udhcpd will use
+
+interface	wlan2		#default: eth0
+
+
+# The maximim number of leases (includes addressesd reserved
+# by OFFER's, DECLINE's, and ARP conficts
+
+#max_leases	254		#default: 254
+
+
+# If remaining is true (default), udhcpd will store the time
+# remaining for each lease in the udhcpd leases file. This is
+# for embedded systems that cannot keep time between reboots.
+# If you set remaining to no, the absolute time that the lease
+# expires at will be stored in the dhcpd.leases file.
+
+#remaining	yes		#default: yes
+
+
+# The time period at which udhcpd will write out a dhcpd.leases
+# file. If this is 0, udhcpd will never automatically write a
+# lease file. (specified in seconds)
+
+#auto_time	7200		#default: 7200 (2 hours)
+
+
+# The amount of time that an IP will be reserved (leased) for if a
+# DHCP decline message is received (seconds).
+
+#decline_time	3600		#default: 3600 (1 hour)
+
+
+# The amount of time that an IP will be reserved (leased) for if an
+# ARP conflct occurs. (seconds
+
+#conflict_time	3600		#default: 3600 (1 hour)
+
+
+# How long an offered address is reserved (leased) in seconds
+
+#offer_time	60		#default: 60 (1 minute)
+
+# If a lease to be given is below this value, the full lease time is
+# instead used (seconds).
+
+#min_lease	60		#defult: 60
+
+
+# The location of the leases file
+
+#lease_file	/var/lib/misc/udhcpd.leases	#defualt: /var/lib/misc/udhcpd.leases
+
+# The location of the pid file
+pidfile	/var/run/udhcpd-wlan2.pid	#default: /var/run/udhcpd.pid
+
+# Everytime udhcpd writes a leases file, the below script will be called.
+# Useful for writing the lease file to flash every few hours.
+
+#notify_file				#default: (no script)
+
+#notify_file	dumpleases 	# <--- usefull for debugging
+
+# The following are bootp specific options, setable by udhcpd.
+
+#siaddr		192.168.0.22		#default: 0.0.0.0
+
+#sname		zorak			#default: (none)
+
+#boot_file	/var/nfs_root		#default: (none)
+
+# The remainer of options are DHCP options and can be specifed with the
+# keyword 'opt' or 'option'. If an option can take multiple items, such
+# as the dns option, they can be listed on the same line, or multiple
+# lines. The only option with a default is 'lease'.
+
+#Examles
+opt	dns	192.168.2.1
+option	subnet	255.255.255.0
+option	domain	atherosowl.com
+option	lease	864000		# 10 days of seconds
+
+
+# Currently supported options, for more info, see options.c
+#opt subnet
+#opt timezone
+#opt router
+#opt timesvr
+#opt namesvr
+#opt dns
+#opt logsvr
+#opt cookiesvr
+#opt lprsvr
+#opt bootsize
+#opt domain
+#opt swapsvr
+#opt rootpath
+#opt ipttl
+#opt mtu
+#opt broadcast
+#opt wins
+#opt lease
+#opt ntpsrv
+#opt tftp
+#opt bootfile
+
+
+# Static leases map
+#static_lease 00:60:08:11:CE:4E 192.168.0.54
+#static_lease 00:60:08:11:CE:3E 192.168.0.44
+
+