WebSVN – ALCASAR – Diff – /scripts/sbin/alcasar-load_balancing.sh



#!/bin/bash
# $Id: alcasar-load_balancing.sh 1469 2014-10-30 21:58:47Z richard $
 
# Generic Load balancer for multiple WAN links - version 1.1 (04 Feb 2011)
# (c) 2011 Pau Oliva Fora - http://pof.eslack.org
#
# Licensed under GPLv3 - for full terms see:

CONF_FILE="$DIR_ETC/alcasar.conf"
MULTIWAN=`grep MULTIWAN= $CONF_FILE|cut -d"=" -f2`
MULTIWAN=${MULTIWAN:=off}
FAILOVER=`grep FAILOVER= $CONF_FILE|cut -d"=" -f2`
FAILOVER=${FAILOVER:=30}
INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
 
 
# space separated list of public IPs to ping in watchdog mode
# set this to some public ip addresses pingable and always on.
TESTIPS="8.8.8.8 192.0.32.10"

		WT=`grep "$INT=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $5}'`		# WEIGHT
		WT=${WT:-1}
		IP=`grep "$INT=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $3}' | cut -d"/" -f1`	# @IP
 
		if [ $i -ne 0 ]; then
			[ -e /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i ] && ifdown $INTIF:$i && rm -f /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i
			IFACE=`grep "$INT=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $2}'`	# IFACE
			IP_NET=`grep "^$INT=" $CONF_FILE | awk -F'"' '{print $2}' | awk -F, '{ print $3}'`	# IP
			NET="`ipcalc -n $IP_NET | cut -d"=" -f2`/`ipcalc -p $IP_NET|cut -d"=" -f2`"
			GW=`grep "$INT=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $4}'`		# @GW
			MTU=`grep "$INT=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $6}'`	# MTU
 
			# Config $INTIF:$i (Internet)
			cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i
DEVICE=$IFACE
BOOTPROTO=static
IPADDR=`echo $IP | cut -d"/" -f1`
NETMASK=`ipcalc -m $IP_NET | cut -d= -f2`
NETWORK=`ipcalc -n $IP_NET | cut -d= -f2`

IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=no
USERCTL=no
EOF
			echo "ifup $INTIF:$i"
			ifup $INTIF:$i
			NET="`ipcalc -n $IP_NET | cut -d"=" -f2`/`ipcalc -p $IP_NET|cut -d"=" -f2`"
		else
			IFACE="$INTIF"
			IP_NET=`grep "^PUBLIC_IP=" $CONF_FILE | awk -F'=' '{print $2}'`			# IP/MSK
			IP=`grep "^PUBLIC_IP=" $CONF_FILE | awk -F= '{ print $2 }' | cut -d"/" -f1`	# @IP
			GW=`grep "^GW=" $CONF_FILE | awk -F= '{print $2}'`				# @GW
#			MTU=`grep "^PUBLIC_MTU=" $CONF_FILE | awk -F= '{print $2}'`			# MTU
		fi # End

 
###########################
# Fonction virtual Interfaces deleting
###########################
delete_eth () {
	IFACE_COUNT=`ls -l /etc/sysconfig/network-scripts/ifcfg-$INTIF:* | wc -l`
	echo $IFACE_COUNT
	while [ $IFACE_COUNT -ne 0 ]
	do
		i=$IFACE_COUNT	
		echo "ifdown $INTIF:$i"
		ifdown $INTIF:$i
		rm -f /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i
		IFACE_COUNT=$(($IFACE_COUNT - 1))
	done
	ip route del default scope global
#	ip route add default gw 192.168.1.1
}

	
	DOWNCOUNT_BAK=0
	DOWN_BAK=""
	NBIFACE=`grep "^WAN" $CONF_FILE | wc -l`	# Nbre interfaces virtuelles
	echo "Nombre interfaces =  "$NBIFACE
	WANIFACE[0]="$INTIF"
	c=0
	while [ $c -le $NBIFACE ]; do
		ITH=(`grep "WAN$c=" $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $2}'`)	# IFACE
		echo $ITH
		WANIFACE="${WANIFACE} $ITH"

		DOWN=""			# liste des interfaces down
		DOWNCOUNT=0		# nombre d'interface down
		for iface in $WANIFACE ; do
			COUNT=0		# compteur de test
			FAIL=0		# Nombre de fois down
			# Recup de l'adresse IP dynamiquement
			IP=`ifconfig $iface |grep "inet adr" |cut -f 2 -d ":" |awk '{print $1}'`
			if [ $i -ne 0 ]; then
				GW=`grep "$iface," $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $4}'`		# @GW
				WT=`grep "$iface," $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $5}'`		# @WT
			else

						fi
					done # End linkdown in DOWN
					# Interface en etat normal --> rajout de la règle en mode nexthop
					if [ $FAILIF -eq 0 ]; then
						IP=`ifconfig $iface |grep "inet adr" |cut -f 2 -d ":" |awk '{print $1}'`
						if [ $iface != "$INTIF" ]; then
							GW=`grep "$iface," $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $4}'`		# @GW
							WT=`grep "$iface," $CONF_FILE | awk -F'"' '{ print $2 }' | awk -F, '{ print $5}'`		# @GW
						else
							GW=`grep "^GW=" $CONF_FILE | awk -F= '{print $2}'`			# @GW
						fi	

Rev 1078	Rev 1469
Line 1...	Line 1...
1	`#!/bin/bash`	1	`#!/bin/bash`
2	`# $Id: alcasar-load_balancing.sh 1078 2013-05-02 16:40:54Z franck $`	2	`# $Id: alcasar-load_balancing.sh 1469 2014-10-30 21:58:47Z richard $`
3		3
4	`# Generic Load balancer for multiple WAN links - version 1.1 (04 Feb 2011)`	4	`# Generic Load balancer for multiple WAN links - version 1.1 (04 Feb 2011)`
5	`# (c) 2011 Pau Oliva Fora - http://pof.eslack.org`	5	`# (c) 2011 Pau Oliva Fora - http://pof.eslack.org`
6	`#`	6	`#`
7	`# Licensed under GPLv3 - for full terms see:`	7	`# Licensed under GPLv3 - for full terms see:`
Line 31...	Line 31...
31	`CONF_FILE="$DIR_ETC/alcasar.conf"`	31	`CONF_FILE="$DIR_ETC/alcasar.conf"`
32	MULTIWAN=`grep MULTIWAN= $CONF_FILE\|cut -d"=" -f2`	32	MULTIWAN=`grep MULTIWAN= $CONF_FILE\|cut -d"=" -f2`
33	`MULTIWAN=${MULTIWAN:=off}`	33	`MULTIWAN=${MULTIWAN:=off}`
34	FAILOVER=`grep FAILOVER= $CONF_FILE\|cut -d"=" -f2`	34	FAILOVER=`grep FAILOVER= $CONF_FILE\|cut -d"=" -f2`
35	`FAILOVER=${FAILOVER:=30}`	35	`FAILOVER=${FAILOVER:=30}`
-		36	INTIF=`grep ^INTIF= $CONF_FILE\|cut -d"=" -f2` # INTernal InterFace
36		37
37		38
38	`# space separated list of public IPs to ping in watchdog mode`	39	`# space separated list of public IPs to ping in watchdog mode`
39	`# set this to some public ip addresses pingable and always on.`	40	`# set this to some public ip addresses pingable and always on.`
40	`TESTIPS="8.8.8.8 192.0.32.10"`	41	`TESTIPS="8.8.8.8 192.0.32.10"`
Line 66...	Line 67...
66	WT=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # WEIGHT	67	WT=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # WEIGHT
67	`WT=${WT:-1}`	68	`WT=${WT:-1}`
68	IP=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $3}' \| cut -d"/" -f1` # @IP	69	IP=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $3}' \| cut -d"/" -f1` # @IP
69		70
70	`if [ $i -ne 0 ]; then`	71	`if [ $i -ne 0 ]; then`
71	`[ -e /etc/sysconfig/network-scripts/ifcfg-eth0:$i ] && ifdown eth0:$i && rm -f /etc/sysconfig/network-scripts/ifcfg-eth0:$i`	72	`[ -e /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i ] && ifdown $INTIF:$i && rm -f /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i`
72	IFACE=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $2}'` # IFACE	73	IFACE=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $2}'` # IFACE
73	IP_NET=`grep "^$INT=" $CONF_FILE \| awk -F'"' '{print $2}' \| awk -F, '{ print $3}'` # IP	74	IP_NET=`grep "^$INT=" $CONF_FILE \| awk -F'"' '{print $2}' \| awk -F, '{ print $3}'` # IP
74	NET="`ipcalc -n $IP_NET \| cut -d"=" -f2`/`ipcalc -p $IP_NET\|cut -d"=" -f2`"	75	NET="`ipcalc -n $IP_NET \| cut -d"=" -f2`/`ipcalc -p $IP_NET\|cut -d"=" -f2`"
75	GW=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW	76	GW=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW
76	MTU=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $6}'` # MTU	77	MTU=`grep "$INT=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $6}'` # MTU
77		78
78	`# Config eth0:$i (Internet)`	79	`# Config $INTIF:$i (Internet)`
79	`cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-eth0:$i`	80	`cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i`
80	`DEVICE=$IFACE`	81	`DEVICE=$IFACE`
81	`BOOTPROTO=static`	82	`BOOTPROTO=static`
82	IPADDR=`echo $IP \| cut -d"/" -f1`	83	IPADDR=`echo $IP \| cut -d"/" -f1`
83	NETMASK=`ipcalc -m $IP_NET \| cut -d= -f2`	84	NETMASK=`ipcalc -m $IP_NET \| cut -d= -f2`
84	NETWORK=`ipcalc -n $IP_NET \| cut -d= -f2`	85	NETWORK=`ipcalc -n $IP_NET \| cut -d= -f2`
Line 89...	Line 90...
89	`IPV6INIT=no`	90	`IPV6INIT=no`
90	`IPV6TO4INIT=no`	91	`IPV6TO4INIT=no`
91	`ACCOUNTING=no`	92	`ACCOUNTING=no`
92	`USERCTL=no`	93	`USERCTL=no`
93	`EOF`	94	`EOF`
94	`echo "ifup eth0:$i"`	95	`echo "ifup $INTIF:$i"`
95	`ifup eth0:$i`	96	`ifup $INTIF:$i`
96	NET="`ipcalc -n $IP_NET \| cut -d"=" -f2`/`ipcalc -p $IP_NET\|cut -d"=" -f2`"	97	NET="`ipcalc -n $IP_NET \| cut -d"=" -f2`/`ipcalc -p $IP_NET\|cut -d"=" -f2`"
97	`else`	98	`else`
98	`IFACE="eth0"`	99	`IFACE="$INTIF"`
99	IP_NET=`grep "^PUBLIC_IP=" $CONF_FILE \| awk -F'=' '{print $2}'` # IP/MSK	100	IP_NET=`grep "^PUBLIC_IP=" $CONF_FILE \| awk -F'=' '{print $2}'` # IP/MSK
100	IP=`grep "^PUBLIC_IP=" $CONF_FILE \| awk -F= '{ print $2 }' \| cut -d"/" -f1` # @IP	101	IP=`grep "^PUBLIC_IP=" $CONF_FILE \| awk -F= '{ print $2 }' \| cut -d"/" -f1` # @IP
101	GW=`grep "^GW=" $CONF_FILE \| awk -F= '{print $2}'` # @GW	102	GW=`grep "^GW=" $CONF_FILE \| awk -F= '{print $2}'` # @GW
102	# MTU=`grep "^PUBLIC_MTU=" $CONF_FILE \| awk -F= '{print $2}'` # MTU	103	# MTU=`grep "^PUBLIC_MTU=" $CONF_FILE \| awk -F= '{print $2}'` # MTU
103	`fi # End`	104	`fi # End`
Line 137...	Line 138...
137		138
138	`###########################`	139	`###########################`
139	`# Fonction virtual Interfaces deleting`	140	`# Fonction virtual Interfaces deleting`
140	`###########################`	141	`###########################`
141	`delete_eth () {`	142	`delete_eth () {`
142	IFACE_COUNT=`ls -l /etc/sysconfig/network-scripts/ifcfg-eth0:* \| wc -l`	143	IFACE_COUNT=`ls -l /etc/sysconfig/network-scripts/ifcfg-$INTIF:* \| wc -l`
143	`echo $IFACE_COUNT`	144	`echo $IFACE_COUNT`
144	`while [ $IFACE_COUNT -ne 0 ]`	145	`while [ $IFACE_COUNT -ne 0 ]`
145	`do`	146	`do`
146	`i=$IFACE_COUNT`	147	`i=$IFACE_COUNT`
147	`echo "ifdown eth0:$i"`	148	`echo "ifdown $INTIF:$i"`
148	`ifdown eth0:$i`	149	`ifdown $INTIF:$i`
149	`rm -f /etc/sysconfig/network-scripts/ifcfg-eth0:$i`	150	`rm -f /etc/sysconfig/network-scripts/ifcfg-$INTIF:$i`
150	`IFACE_COUNT=$(($IFACE_COUNT - 1))`	151	`IFACE_COUNT=$(($IFACE_COUNT - 1))`
151	`done`	152	`done`
152	`ip route del default scope global`	153	`ip route del default scope global`
153	`# ip route add default gw 192.168.1.1`	154	`# ip route add default gw 192.168.1.1`
154	`}`	155	`}`
Line 180...	Line 181...
180		181
181	`DOWNCOUNT_BAK=0`	182	`DOWNCOUNT_BAK=0`
182	`DOWN_BAK=""`	183	`DOWN_BAK=""`
183	NBIFACE=`grep "^WAN" $CONF_FILE \| wc -l` # Nbre interfaces virtuelles	184	NBIFACE=`grep "^WAN" $CONF_FILE \| wc -l` # Nbre interfaces virtuelles
184	`echo "Nombre interfaces = "$NBIFACE`	185	`echo "Nombre interfaces = "$NBIFACE`
185	`WANIFACE[0]="eth0" # eth0 par défaut`	186	`WANIFACE[0]="$INTIF"`
186	`c=0`	187	`c=0`
187	`while [ $c -le $NBIFACE ]; do`	188	`while [ $c -le $NBIFACE ]; do`
188	ITH=(`grep "WAN$c=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $2}'`) # IFACE	189	ITH=(`grep "WAN$c=" $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $2}'`) # IFACE
189	`echo $ITH`	190	`echo $ITH`
190	`WANIFACE="${WANIFACE} $ITH"`	191	`WANIFACE="${WANIFACE} $ITH"`
Line 204...	Line 205...
204	`DOWN="" # liste des interfaces down`	205	`DOWN="" # liste des interfaces down`
205	`DOWNCOUNT=0 # nombre d'interface down`	206	`DOWNCOUNT=0 # nombre d'interface down`
206	`for iface in $WANIFACE ; do`	207	`for iface in $WANIFACE ; do`
207	`COUNT=0 # compteur de test`	208	`COUNT=0 # compteur de test`
208	`FAIL=0 # Nombre de fois down`	209	`FAIL=0 # Nombre de fois down`
209	`# Recup de l'adresse IP dynamiquement A tester avec le tableau ... ip=${ETH[$i:2]} basé sur iface=${ETH[$i:1]}`	210	`# Recup de l'adresse IP dynamiquement`
210	IP=`ifconfig $iface \|grep "inet adr" \|cut -f 2 -d ":" \|awk '{print $1}'`	211	IP=`ifconfig $iface \|grep "inet adr" \|cut -f 2 -d ":" \|awk '{print $1}'`
211	`if [ $i -ne 0 ]; then`	212	`if [ $i -ne 0 ]; then`
212	GW=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW	213	GW=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW
213	WT=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # @WT	214	WT=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # @WT
214	`else`	215	`else`
Line 290...	Line 291...
290	`fi`	291	`fi`
291	`done # End linkdown in DOWN`	292	`done # End linkdown in DOWN`
292	`# Interface en etat normal --> rajout de la règle en mode nexthop`	293	`# Interface en etat normal --> rajout de la règle en mode nexthop`
293	`if [ $FAILIF -eq 0 ]; then`	294	`if [ $FAILIF -eq 0 ]; then`
294	IP=`ifconfig $iface \|grep "inet adr" \|cut -f 2 -d ":" \|awk '{print $1}'`	295	IP=`ifconfig $iface \|grep "inet adr" \|cut -f 2 -d ":" \|awk '{print $1}'`
295	`if [ $iface != "eth0" ]; then`	296	`if [ $iface != "$INTIF" ]; then`
296	GW=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW	297	GW=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $4}'` # @GW
297	WT=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # @GW	298	WT=`grep "$iface," $CONF_FILE \| awk -F'"' '{ print $2 }' \| awk -F, '{ print $5}'` # @GW
298	`else`	299	`else`
299	GW=`grep "^GW=" $CONF_FILE \| awk -F= '{print $2}'` # @GW	300	GW=`grep "^GW=" $CONF_FILE \| awk -F= '{print $2}'` # @GW
300	`fi`	301	`fi`

Subversion Repositories ALCASAR

(root)/scripts/sbin/alcasar-load_balancing.sh @ 1512 – Rev 1078 → 1469