wlan-lj:fonera3 [kiberpipa.net:odprto brezzicno omrezje Ljubljane]

potrebno je urediti dokument!! styling!!

Namestil sem firmware OpenWrt kamikaze 7.09 v datotekama openwrt-atheros-2.6-root.jffs2-64k in kernelom openwrt-atheros-2.6-vmlinux.lzma.

Na TFPT strežnik (na IPju 192.168.1.166) postavil obe datoteki, ob zagonu routerja se nanj povezal:

telnet 192.168.1.254 9000

in na njem pognal:

ip_addr -h 192.168.1.166 -l 192.168.1.254/24
fis init
load -r -v -b %{FREEMEMLO} openwrt-atheros-2.6-root.jffs2-64k
fis create -f 0xA8030000 -l 0x006F0000 -e 0x00000000 rootfs
load -r -v -b %{FREEMEMLO} openwrt-atheros-2.6-vmlinux.lzma
fis create -r 0x80041000 -e 0x80041000 vmlinux.bin.l7
reset

Prijavil s telnetom na 192.168.1.1 in nastavil root geslo.

/etc/init.d/firewall stop
/etc/init.d/firewall disable

echo -n > /etc/firewall.user
echo -n > /etc/config/firewall

V /etc/config/network nastavil IP na 192.168.10.1 in:

/etc/init.d/network restart

in se prijavil na novo preko SSH (prej si primerno spremenil IP).

V /lib/network/config.sh sem spremenil:

ifconfig "$iface" down

v:

ifconfig "$iface" down 2>/dev/null >/dev/null

in:

# Interface settings
config_get mtu "$config" mtu
config_get macaddr "$config" macaddr
$DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
uci set "/var/state/network.$config.ifname=$iface"

v:

# Interface settings (if not an alias)
if [ "${iface##*:}" = "$iface" ]; then
config_get mtu "$config" mtu
config_get macaddr "$config" macaddr
$DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
fi
uci set "/var/state/network.$config.ifname=$iface"

V /etc/hotplug.d/net/10-net sem dodal na začetek, takoj po include:

setup_interface_if_auto() {
local cfg="$(find_config "$1")"

# check the autoload setting
config_get auto "$cfg" auto
case "$auto" in
	1|on|enabled) setup_interface "$1";;
	*) return 1 ;;
esac
}

in spremenil:

local cfg="$(find_config "$INTERFACE")"
                                                                              
# check the autoload setting
config_get auto "$cfg" auto
case "$auto" in
1|on|enabled) setup_interface "$INTERFACE";;
esac

v:

if setup_interface_if_auto "$INTERFACE"; then 
# Setup interface alises 
for ifc in $interfaces; do 
	config_get dev "$ifc" ifname 
	[ "${dev%%:*}" = "$INTERFACE" -a "$dev" != "$INTERFACE" ] && { 
		setup_interface_if_auto "$dev" 
	} 
done 
fi

Nastavil sem /etc/config/network na:

config interface	loopback
option ifname	lo
option proto	static
option ipaddr	127.0.0.1
option netmask	255.0.0.0

config interface	wifi
option ifname	"ath0"
option proto	static
option ipaddr	10.16.201.161
option netmask	255.255.255.224

config interface	mesh
option ifname	"ath0:0"
option proto	static
option ipaddr	10.14.0.17
option netmask	255.255.0.0

config interface	wan
option ifname	"eth0"
option proto	dhcp

config interface	fallback
option ifname	"eth0:0"
option proto	static
option ipaddr	169.254.189.120
option netmask	255.255.0.0

V /etc/config/wireless:

config wifi-device	wifi0
option type	atheros
option channel	8
option mode		11g
option diversity 0
option txantenna 1
option rxantenna 1

config wifi-iface
option device	wifi0
option network	wifi
option mode		adhoc
option ssid		open.kiberpipa.net
option bssid	02:CA:FF:EE:BA:BE
option hidden 	0
option isolate	0
option encryption none
#option rts		250
#option frag	512
option bgscan	0

rts in frag nastavitvi še ne delata pravilno v tej verziji (r3314) madwifi modula, zato sta začasno zakomentirani.

V /etc/config/dhcp sem nastavil:

config dhcp
option interface	wifi
option start 		162
option limit		29
option leasetime	3h
option force		1

config dhcp
option interface	mesh
option start		0
option limit		0
option leasetime	infinite
option force		1

config dhcp
option interface	wan
option ignore		1

config dhcp
option interface	fallback
option ignore		1

touch /etc/ethers

V /etc/dnsmasq.conf sem nastavil:

domain-needed
bogus-priv
filterwin2k
localise-queries
local=/wifi/
domain=wifi
expand-hosts
no-negcache
no-resolv
server=10.14.0.1
server=10.14.0.2
dhcp-authoritative
dhcp-leasefile=/tmp/dhcp.leases
read-ethers

Sprašuje le DNS strežnike v omrežju.

V /etc/init.d/dnsmasq sem dodal za:

append_bool "$cfg" ignore "-I $ifname"

še:

config_get_bool ignore "$cfg" ignore
 [ "$ignore" -gt 0 ] && return 0

saj se sicer dnsmasqu vseeno lahko doda range, čeprav je ignore nastavljen, in zamenjal:

limit="$((${limit:-150} + 1))"

z (da računa malo bolj pravilno):

limit="${limit:-150}"

in za:

eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"

dodal:

if [ "$limit" = "0" ]; then
END=static
fi

za podporo le statičnemu delovanju DHCP strežnika (če je limit nastavljen na 0).

V /etc/config/system:

config system
option hostname	rog-4

reboot

Prijavil na 169.254.189.120.

Ker sem potreboval uplink (169.254.189.100 je IP računalnika s katerim sem bil prijavljen na router, saj sem uporabljal failback nastavitve):

route add default gw 169.254.189.100 dev eth0:0 metric 100
route add -host 193.164.137.78 gw 169.254.189.100 dev eth0:0
route add -host 91.185.199.246 gw 169.254.189.100 dev eth0:0
echo "nameserver 193.2.1.66" > /etc/resolv.conf

V /etc/ipkg.conf sem dodal na vrhu:

src wifi http://ipkg.stargate.si/mips

ipkg update
ipkg upgrade

To je nadgradilo busybox na naš paket.

ipkg upgrade

To je nadgradilo se kmod-madwifi modul.

ipkg install kmod-softdog

reboot

Še enkrat nastavil uplink:

ipkg install ntpclient

dropbearkey -t dss -s 1024 -f /etc/dropbear/dropbear_dss_host_key.new
dropbearkey -t rsa -s 2048 -f /etc/dropbear/dropbear_rsa_host_key.new
mv /etc/dropbear/dropbear_dss_host_key.new /etc/dropbear/dropbear_dss_host_key
mv /etc/dropbear/dropbear_rsa_host_key.new /etc/dropbear/dropbear_rsa_host_key

Naredil sem datoteko /etc/init.d/date:

#!/bin/sh /etc/rc.common

START=35
start() {
date 060100002008
}

chmod +x /etc/init.d/date
/etc/init.d/date enable
/etc/init.d/date start

ipkg install openvpn

mkdir /etc/openvpn/

V /etc/openvpn/wlanlj.conf:

client
proto udp
dev tap0
remote 193.164.137.78 9999
remote 91.185.199.246 9999
resolv-retry infinite
nobind
persist-key
persist-tun
ns-cert-type server
comp-lzo
daemon
auth-user-pass /etc/openvpn/wlanlj.pass
auth-retry nointeract
cipher BF-CBC
ifconfig 10.14.0.17 255.255.0.0
writepid /var/run/openvpn.pid
verb 3
mute 20
user nobody
group nogroup
ca /etc/openvpn/wlanlj-ca.crt
tls-auth /etc/openvpn/wlanlj-ta.key 1

V /etc/default/openvpn:

  CONFIG="/etc/openvpn/wlanlj.conf"
  OPTIONS="--config $CONFIG"

V /etc/openvpn/wlanlj.pass sem vpisal uporabniško ime in geslo, vsako v svojo vrstico.

Skopiral wlanlj-ca.crt, wlanlj-ta.key v /etc/openvpn in nastavil, da so vse tri datoteke berljive le za root uporabnika.

ipkg install olsrd

Nastavil /etc/olsrd.conf:

DebugLevel			0
IpVersion			4
ClearScreen			yes
Hna4
{
	10.16.201.160	255.255.255.224
}
AllowNoInt			yes
UseHysteresis		no
LinkQualityLevel	2
LinkQualityWinSize	100
Pollrate			0.1
NicChgsPollInt		3.0
TcRedundancy		2
MprCoverage			1
Interface "ath0:0"
{
	HelloInterval		4.0
	HelloValidityTime	80.0
	TcInterval			8.0
	TcValidityTime		160.0
	MidInterval			8.0
	MidValidityTime		160.0
	HnaInterval			8.0
	HnaValidityTime		160.0
}
Interface "tap0"
{
	HelloInterval		4.0
	HelloValidityTime	80.0
	TcInterval			8.0
	TcValidityTime		160.0
	MidInterval			8.0
	MidValidityTime		160.0
	HnaInterval			8.0
	HnaValidityTime		160.0
	LinkQualityMult default	0.44
}

V /etc/sysctl.conf sem nastavil:

dev.wifi0.diversity=0
dev.wifi0.rxantenna=1
dev.wifi0.txantenna=1
net.ipv4.conf.default.arp_announce=1
net.ipv4.conf.all.arp_announce=1

V /etc/modules.d/50-madwifi sem nastavil:

ath_ahb countrycode=0 outdoor=1

ipkg remove bridge ppp-mod-pppoe kmod-pppoe ppp kmod-ppp

ipkg install ip nmap tcpdump ngrep

V /usr/share/udhcpc/default.script sem:

route add default gw $i dev $interface

spremenil v:

route add default gw $i dev $interface metric 100

in:

$(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}')

v (da pocisi le svoje route in ne drugih default):

$(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} !/('$interface')$/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2" metric 100;"}')

Tako bo povezava preko DHCP imela nižjo prioriteto kot tista preko omrežja (za to, da pa ima brezžična povezava višjo prioriteto od VPNja, pa skrbi OLSR z obtežitvijo).

V /etc/hotplug.d/iface/10-routes sem v add_route() pred:

[ -n "$gateway" ] || {

dodal:

[ "$gateway" = "auto" ] && {
	# Get the gateway from the interface configuration
	config_get gateway "$interface" gateway
}

Tako mi ni potrebno nastaviti točnega IP-ja gatewaya, saj ga pri DHCP wan povezavi tudi ne vem vnaprej.

Ker imajo routerji v splosnem dva default routa je potrebno nastaviti, da povezave, ki se naredijo preko enega izmed njiju od zunaj tudi po istem gredo nazaj. Recimo ce ping pride po enem default routu (ker je verjetno povezan v druga omrezja), se mora vrniti po istem nazaj, ne pa se poskusiti vrniti po default routu tocke.

mkdir /etc/iproute2/
echo "8 wan" > /etc/iproute2/rt_tables

V /etc/hotplug.d/iface/10-routes dodal v sklop branja nastavitev:

config_get table "$config" table

odstranil dele:

config_get netmask "$config" netmask

netmask="${netmask:-255.255.255.255}"
dest="${netmask:+-net "$target" netmask "$netmask"}"                    
dest="${dest:--host "$target"}"

[ -n "$gateway" ] || {
	echo "Missing gateway in route section $config"
	return 1
}

dodal za sklopom [ “$gateway” = “auto” ]:

wasnetwork=0
[ "$target" = "network" ] && {
	config_get ipaddr "$interface" ipaddr
	config_get netmask "$interface" netmask
	target=`ipcalc.sh "$ipaddr" "$netmask" | grep NETWORK | cut -d "=" -f 2`/`ipcalc.sh "$ipaddr" "$netmask" | grep PREFIX | cut -d "=" -f 2`
	wasnetwork=1
}

odstranil komentar celotnega tega dela “make sure there is a gateway and a target”, ker ni več točen, in spremenil glavni ukaz v:

/usr/sbin/ip route add $target ${gateway:+via "$gateway"} ${dev:+dev "$dev"} ${metric:+metric "$metric"} ${table:+table "$table"}

in za njim dodal se (rahlo hardcodeano delovanje):

[ -n "$table" ] && {
	config_get ipaddr "$interface" ipaddr
	/usr/sbin/ip rule list | grep -q "from $ipaddr lookup $table" || /usr/sbin/ip rule add from "$ipaddr" pref 15000 table "$table"
	[ "$wasnetwork" != 0 ] || [ "$target" = "default" ] || /usr/sbin/ip rule list | grep -q "from all to $target lookup $table" || /usr/sbin/ip rule add to "$target" pref 20000 table "$table"
	/usr/sbin/ip rule list | grep -q "from all fwmark 0x100000/0x100000 lookup main" || /usr/sbin/ip rule add fwmark 0x100000/0x100000 pref 10000 table main
}

Na konec /etc/config/network sem tako dodal se route preko wana:

config route		wanvpn1
	option interface wan
	option target	193.164.137.78
	option gateway	auto
	option metric	0
	option table	wan
	
config route		wanvpn2
	option interface wan
	option target	91.185.199.246
	option gateway	auto
	option metric	0
	option table	wan

config route		wannetwork
	option interface wan
	option target	network
	option metric	0
	option table	wan

config route		wandefault
	option interface wan
	option target	default
	option gateway	auto
	option metric	0
	option table	wan

To tudi ohrani route do VPN, ker se sicer izgubi povezava do VPNja, ko se enkrat doda default route, ki gre preko VPNja (saj ima nižji metric). Ta default route OLSR ponovno umakne čez čas, VPN povezava se ponovno vzpostavi, pa ga ponovno doda … Vmes tudi morebitnemu uporabniku prijavljenjemu na točko povezava nekaj časa dela in nekaj časa ne dela. Namreč ko se umakne default route preko VPNja, točka pošlje pakete (ker se ni firewalla, takrat pa bi prav tako to bil problem) na svoj wan, ampak naprave naprej na wanu ne poznajo IP-ja tega uporabika, točka pa ne dela NATa, da bi IP zakrila. Tako povezava takrat ne deluje. (Da bi se to v tem koraku testiralo, mora biti v /proc/sys/net/ipv4/ip_forward 1 in firewall pravilno nastavljen, da dovoljuje forward.)

Nastavil sem /etc/init.d/firewall na:

#!/bin/sh /etc/rc.common

START=45
start() {
	include /lib/network
	scan_interfaces
	config_load /var/state/network
	
	config_get WIFI_IF wifi ifname
	config_get MESH_IF mesh ifname
	config_get LAN_IF lan ifname
	config_get LANMESH_IF lanmesh ifname
	config_get WAN_IF wan ifname
	config_get FALLBACK_IF fallback ifname
	
	config_get WIFI_ADDR wifi ipaddr
	config_get LAN_ADDR lan ipaddr
	config_get FALLBACK_ADDR fallback ipaddr
	
	config_get WIFI_MASK wifi netmask
	config_get LAN_MASK lan netmask
	config_get FALLBACK_MASK fallback netmask
	
	WIFI_DEV=${WIFI_IF%%:*}
	MESH_DEV=${MESH_IF%%:*}
	LAN_DEV=${LAN_IF%%:*}
	LANMESH_DEV=${LANMESH_IF%%:*}
	WAN_DEV=${WAN_IF%%:*}
	FALLBACK_DEV=${FALLBACK_IF%%:*}
	VPN_DEV="tap+"
	
	WIFI_IN="-i $WIFI_DEV -s $WIFI_ADDR/$WIFI_MASK"
	MESH_IN="-i $MESH_DEV -s ! $WIFI_ADDR/$WIFI_MASK"
	LAN_IN="-i $LAN_DEV -s $LAN_ADDR/$LAN_MASK"
	[ -n "$LAN_IF" ] && LANMESH_IN="-i $LANMESH_DEV -s ! $LAN_ADDR/$LAN_MASK" || LANMESH_IN="-i $LANMESH_DEV"
	WAN_IN="-i $WAN_DEV -s ! $FALLBACK_ADDR/$FALLBACK_MASK"
	FALLBACK_IN="-i $FALLBACK_DEV -s $FALLBACK_ADDR/$FALLBACK_MASK"
	VPN_IN="-i $VPN_DEV"
	
	WAN_OUT="-o $WAN_DEV -d ! $FALLBACK_ADDR/$FALLBACK_MASK"
	
	VPN_HOST1="193.164.137.78"
	VPN_HOST2="91.185.199.246"
	VPN_PORT="9999"
		
	# Clears everything, INPUT & OUTPUT policy ACCEPT, FORWARD policy DROP
	stop
	
	### INPUT ###
	
	iptables -P INPUT DROP
	
	iptables -A INPUT -m state --state INVALID -j DROP
	iptables -A INPUT -p tcp --tcp-flags SYN SYN --tcp-option \! 2 -j DROP
	
	iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
	iptables -A INPUT -i lo -j ACCEPT
	iptables -A INPUT $FALLBACK_IN -j ACCEPT
	
	# Allows node SSH from anywhere
	iptables -A INPUT -p tcp --dport 22 -j ACCEPT
	
	# Allows node HTTP from anywhere except wan
	[ -n "$WAN_IF" ] && iptables -A INPUT $WAN_IN -p tcp --dport 80 -j REJECT --reject-with icmp-net-prohibited
	iptables -A INPUT -p tcp --dport 80 -j ACCEPT
	
	# Allows node DNS from anywhere except wan
	[ -n "$WAN_IF" ] && iptables -A INPUT $WAN_IN -p tcp --dport 53 -j REJECT --reject-with icmp-net-prohibited
	[ -n "$WAN_IF" ] && iptables -A INPUT $WAN_IN -p udp --dport 53 -j REJECT --reject-with icmp-net-prohibited
	iptables -A INPUT -p tcp --dport 53 -j ACCEPT
	iptables -A INPUT -p udp --dport 53 -j ACCEPT
	
	# Allows captive portal
	iptables -A INPUT $WIFI_IN -p tcp --dport 2050 -j ACCEPT
	
	# Allows DHCP (broadcast)
	iptables -A INPUT -i $WIFI_DEV -p udp --sport 68 --dport 67 -j ACCEPT
	[ -n "$LAN_IF" ] && iptables -A INPUT -i $LAN_DEV -p udp --sport 68 --dport 67 -j ACCEPT
	
	# Allows OLSR (broadcast)
	iptables -A INPUT $MESH_IN -p udp --dport 698 -j ACCEPT
	[ -n "$LANMESH_IF" ] && iptables -A INPUT $LANMESH_IN -p udp --dport 698 -j ACCEPT
	iptables -A INPUT $VPN_IN -p udp --dport 698 -j ACCEPT
	
	# Allows useful ICMP (like ping)
	iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type destination-unreachable -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type source-quench -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type time-exceeded -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type parameter-problem -j ACCEPT
	
	# Allows traceroute
	iptables -A INPUT -p udp --sport 32769:65535 --dport 33434:33523 -j ACCEPT
	iptables -A INPUT -p icmp --icmp-type 30 -j ACCEPT
	
	### FORWARD ###
	
	iptables -P FORWARD DROP
	
	iptables -A FORWARD -m state --state INVALID -j DROP
	iptables -A FORWARD -p tcp --tcp-flags SYN SYN --tcp-option \! 2 -j DROP
	iptables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
	iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
	
	# Disallows routing OLSR packets in a network
	iptables -A FORWARD -p udp --dport 698 -j DROP
	
	# Disallows routing DHCP packets in a network
	iptables -A FORWARD -p udp --dport 67 -j DROP
	iptables -A FORWARD -p udp --sport 68 -j DROP
	
	# Disallows VPN connections to our VPN servers in a network
	iptables -A FORWARD -p tcp -d $VPN_HOST1 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A FORWARD -p udp -d $VPN_HOST1 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A FORWARD -p tcp -d $VPN_HOST2 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A FORWARD -p udp -d $VPN_HOST2 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	
	# Disallows routing from or to a wan segment
	[ -n "$WAN_IF" ] && iptables -A FORWARD -m state --state NEW $WAN_IN -j DROP
	[ -n "$WAN_IF" ] && iptables -A FORWARD -m state --state NEW $WAN_OUT -j DROP
	
	# Allows routing inside other segments
	iptables -A FORWARD -m state --state NEW -j ACCEPT
	
	### OUPUT ###
	
	iptables -P OUTPUT ACCEPT
	
	# Allows VPN connections from the router only through wan or fallback
	[ -n "$WAN_IF" ] && iptables -A OUTPUT -o $WAN_DEV -p tcp -d $VPN_HOST1 --dport $VPN_PORT -j ACCEPT
	[ -n "$WAN_IF" ] && iptables -A OUTPUT -o $WAN_DEV -p tcp -d $VPN_HOST2 --dport $VPN_PORT -j ACCEPT
	[ -n "$WAN_IF" ] && iptables -A OUTPUT -o $WAN_DEV -p udp -d $VPN_HOST1 --dport $VPN_PORT -j ACCEPT
	[ -n "$WAN_IF" ] && iptables -A OUTPUT -o $WAN_DEV -p udp -d $VPN_HOST2 --dport $VPN_PORT -j ACCEPT
	iptables -A OUTPUT -o $FALLBACK_DEV -p tcp -d $VPN_HOST1 --dport $VPN_PORT -j ACCEPT
	iptables -A OUTPUT -o $FALLBACK_DEV -p tcp -d $VPN_HOST2 --dport $VPN_PORT -j ACCEPT
	iptables -A OUTPUT -o $FALLBACK_DEV -p udp -d $VPN_HOST1 --dport $VPN_PORT -j ACCEPT
	iptables -A OUTPUT -o $FALLBACK_DEV -p udp -d $VPN_HOST2 --dport $VPN_PORT -j ACCEPT
	iptables -A OUTPUT -p tcp -d $VPN_HOST1 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A OUTPUT -p tcp -d $VPN_HOST2 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A OUTPUT -p udp -d $VPN_HOST1 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	iptables -A OUTPUT -p udp -d $VPN_HOST2 --dport $VPN_PORT -j REJECT --reject-with icmp-net-prohibited
	
	### ROUTING ###
			
	iptables -t mangle -A PREROUTING -d $VPN_HOST1 -j MARK --or-mark 0x100000
	iptables -t mangle -A PREROUTING -d $VPN_HOST2 -j MARK --or-mark 0x100000
	
	echo 1 > /proc/sys/net/ipv4/ip_forward
}
stop() {
	echo 0 > /proc/sys/net/ipv4/ip_forward
	
	iptables -t filter -P INPUT ACCEPT
	iptables -t filter -P OUTPUT ACCEPT
	iptables -t filter -P FORWARD DROP
	iptables -t filter -F
	iptables -t filter -X
	iptables -t nat -P PREROUTING ACCEPT
	iptables -t nat -P POSTROUTING ACCEPT
	iptables -t nat -P OUTPUT ACCEPT
	iptables -t nat -F
	iptables -t nat -X
	iptables -t mangle -P PREROUTING ACCEPT
	iptables -t mangle -P OUTPUT ACCEPT
	iptables -t mangle -P INPUT ACCEPT
	iptables -t mangle -P FORWARD ACCEPT
	iptables -t mangle -P POSTROUTING ACCEPT
	iptables -t mangle -F
	iptables -t mangle -X
}

/etc/init.d/firewall enable
/etc/init.d/openvpn enable
/etc/init.d/olsrd enable

reboot

Osnovno delovanje je tako nastavljeno.

mkdir /www/cgi-bin/

V /www/cgi-bin/urandom sem napisal:

#!/bin/sh
echo "Content-type: application/octet-stream"
echo
cat /dev/urandom

chmod +x /www/cgi-bin/urandom

V /www/cgi-bin/zero sem napisal:

#!/bin/sh
echo "Content-type: application/octet-stream"
echo
cat /dev/zero

chmod +x /www/cgi-bin/zero

Tako HTTP strežnik ponuja neskončni “datoteki”, ki lahko služita za merjenje kvalitete povezave, če se meri hitrost prenosa /cgi-bin/urandom (ceprav ta je odvisen potem precej od hitrosti CPU, tako da za velike hitrosti ni) in /cgi-bin/zero.

V /etc/init.d/httpd sem:

config_get ifname wan hostname
[ -d /www ] && httpd -p 80 -h /www -r ${hostname:-OpenWrt}

spremenil v:

hostname=`cat /proc/sys/kernel/hostname`
[ -d /www ] && httpd -p 80 -h /www -r ${hostname:-OpenWrt} -R / -H 10.14.0.2

/etc/init.d/httpd restart

Namestil program za merjenje hitrosti povezave, recimo za prenašanje tistih neskoncnih cgi-bin streamov (in seveda drugih stvari, ker za razliko od wgeta izpisuje hitrost prenosa):

ipkg install curl

Primer:

curl -o /dev/null http://localhost/cgi-bin/zero

ipkg install nodogsplash

Nastavil /etc/nodogsplash/nodogsplash.conf na:

GatewayInterface	ath0
GatewayIPRange		10.16.201.160/27
GatewayName			kiberpipa.net
ClientIdleTimeout	30
ClientForceTimeout	360
MaxClients			25
FirewallRuleSet preauthenticated-users {
	FirewallRule allow tcp port 53 to 10.14.0.1
	FirewallRule allow udp port 53 to 10.14.0.1
	FirewallRule allow tcp port 53 to 10.14.0.2
	FirewallRule allow udp port 53 to 10.14.0.2
	FirewallRule allow icmp to 10.14.0.1
	FirewallRule allow icmp to 10.14.0.2
}
FirewallRuleSet authenticated-users {
	FirewallRule allow
}
FirewallRuleSet users-to-router {
	FirewallRule allow tcp port 22
	FirewallRule allow tcp port 53
	FirewallRule allow udp port 53
	FirewallRule allow udp port 67
	FirewallRule allow tcp port 80
	FirewallRule allow icmp
}

/etc/init.d/nodogsplash enable
/etc/init.d/nodogsplash start

V kolikor se želi imeti lan port, se v /etc/config/network zakomentira wan del in doda:

config interface	lan
	option ifname	"eth0"
	option proto	static
	option ipaddr	10.16.201.193
	option netmask	255.255.255.224

V /etc/config/dhcp se doda še:

config dhcp
	option interface	lan
	option start 		194
	option limit		29
	option leasetime	3h

V /etc/olsrd.conf se doda se v Hna4 sekcijo:

10.16.201.192	255.255.255.224

Ter se onemogoči VPN, če ni wana:

/etc/init.d/openvpn disable

reboot

V kolikor se želi imeti lan port za meshing, se v /etc/config/network zakomentira wan del (seveda ne more biti hkrati tudi lan, če je, se stvari zakomplicirajo in se mora lanmesh nastaviti kot dodaten alias) in doda:

config interface	lanmesh
	option ifname	"eth0"
	option proto	static
	option ipaddr	10.14.0.17
	option netmask	255.255.0.0

V /etc/config/dhcp se doda še:

config dhcp
	option interface	lanmesh
	option start		0
	option limit		0
	option leasetime	infinite

V /etc/olsrd.conf se doda interface iz:

Interface "ath0:0"

v:

Interface "ath0:0" "eth0"

Ter se onemogoči VPN, če ni wana:

/etc/init.d/openvpn disable

reboot

wlan-lj/fonera3.txt · Last modified: 2009/02/19 00:23 by rokx