Fries43-ToDo

2011-04-20T21:58:04Z

Kay: VPN_NEIGH korrekt ermitteln

===Finanzamt klaeren===
* 0365/639-1336 Fr.Pforr FA Gera (Verein,Schulden)
* 0365/639-1303 Fr.Kühnel bzw. Fr. Schulz (Verein,Gemeinützigkeit)
** offensichtlich liegt kein Antrag vor ?!?! (Telefonat 2009mar02)

===Literatur und formulierungshinweise===
http://www.itespresso.de/news/netzwerke/news20061127064.aspx

===Monitor Rechner: Welche Bildschirmdiagonale mit welchem Hoehen/Seitenverhaeltnis hat welche Flaeche===
<source lang="bash">
#!/bin/sh

func_inch2cm ()
{
awk -v VAR_INCH="$1" 'BEGIN{
print VAR_INCH*2.54
}'
}

func_area ()
{
awk -v X=$1 -v Y=$2 'BEGIN{
print X*Y
}' | cut -d'.' -f1
}

func_diag2xy ()
{
local DIAG="$1" # e.g.: 22"
local RATE="$2" # e.g.: 16:10 or 4:3
local RATE_X="${RATE%:*}"
local RATE_Y="${RATE#*:}"

# 19² = (4x)² + (3x)²
# 19² = 16x² + 9x²
# 19² = 25x²
# 19 = 5x
# 19/5 = x
# x = 3.8

awk -v DIAG=$DIAG -v RATE_X=$RATE_X -v RATE_Y=$RATE_Y 'BEGIN{
X=(DIAG/sqrt((RATE_X*RATE_X)+(RATE_Y*RATE_Y)))
print X*RATE_X":"X*RATE_Y
}'
}

echo "<html><head><title>Monitor-Rechner</title></head><body>"
echo "<table cellspacing=2 cellpadding=2 border=1>"
echo "<tr><td> Zoll\Verhältnis </td><td align=center> 4:3 </td><td align=center> 16:9 </td><td align=center> 16:10 </td></tr>"

for DIAG in 13 14 15 16 17 18 19 20 21 22 23 24 25 26; do {

echo "<tr><td align=center><a title='$( func_inch2cm $DIAG ) cm'> $DIAG </a></td>"

for RATE in "4:3" "16:9" "16:10"; do {

XY="$( func_diag2xy $DIAG $RATE )"
X="$( func_inch2cm ${XY%:*} )"
Y="$( func_inch2cm ${XY#*:} )"

echo "<td align=right><a title='X/Y.inch=$XY;X.cm=$X;Y.cm=$Y'> $(func_area $X $Y) cm<sup>2</a></sup></td>"
} done

echo "</tr>"

} done

echo "</table></body></html>"

</source>

===GIT Tutorial===
* Grundlage: http://www.online-tutorials.net/programmierung/git/tutorials-t-3-263.html
<pre>
mkdir code
cd code
git-init # erzeugt einen .git-Ordner zur Verwaltung
vi .git/config # es sollte eine Sektion [user] mit name+email angelegt werden
# nun ein paar neue Dateien anlegen:

wget http://weimarnetz.de/freifunk/firmware/current-tarball.tar
tar xvf current-tarball.tar
rm current-tarball.tar

git-add . # alles fuers einchecken vormerken
git-commit -a -m "kommentar" # endgueltiges einchecken
git-log # changelog aller checkins anzeigen
git-show # Unterschied zwischen aktueller und vorletzer Version
</pre>

===Policy Based Routing - bestimmten IP-Bereich ueber VPN-Server ins Internet leiten===
* Ziele:
** das interne "Kabelnetz" soll direkt ins Internet
** alles, was durch die Luft kommt, soll über den Rootserver in Berlin geleitet werden (WLAN-DHCP, OLSR-Nachbarn)
* Fallen:
** das interne Netz sollte direkt erreichbar bleiben
** interne Dienste wie olsr und dns dürfen nicht über den Rootserver geleitet werden
* auf dem Internet-Einspeiser, der per VPN mit dem Root-Server verbunden ist:
* root-server ip, ist der VPN-nachbar:
** VPN_NEIGH="$( _ipsystem do | grep ^WIFIVPNSERVERADR= | cut -d = -f 2)"
** die Variablen $LANNET/$LANPRE kommen vom '. /tmp/loader' (bzw. aus /tmp/NETPARAM)
** anstatt 10.63.0.0/16 koennte man auf $WIFINET/$WIFIPRE einsetzen
<pre>
echo "50 weimarnetz_anonym" >>/etc/iproute2/rt_tables
ip rule add from 10.63.0.0/16 prio 30002 table weimarnetz_anonym
ip rule add to 10.63.0.0/16 prio 30001 lookup main
ip rule add from $LANNET/$LANPRE prio 30000 table main
ip route add default via $VPN_NEIGH dev tap0 table weimarnetz_anonym
ip route flush cache
</pre>
* Die Regel mit prio 30002 leitet alles, was aus dem IP-Bereich vom Weimarnetz über den Rootserver
* Die Regel mit prio 30001 leitet alles, was in den Bereich des Weimarnetz geht über die normale Routingtabelle
* Die Regel mit prio 30000 leitet das interne, kabelgebundene Netz über die normale Routingtabelle
* Beispiel auf Andis Router:
** IP Rules
<pre>
root@BraeuSys:~ ip rule show
0: from all lookup local
32763: from all to 10.63.0.0/16 lookup main
32764: from 10.63.52.32/27 lookup main
32765: from 10.63.0.0/16 lookup weimarnetz_anonym
32766: from all lookup main
32767: from all lookup default
</pre>
** IP Routen
<pre>
root@BraeuSys:~ ip route show table weimarnetz_anonym
default via 10.63.52.30 dev tap0
</pre>
** Traceroute
<pre>
root@wifimac0016b6b74c52:~ traceroute heise.de
traceroute to heise.de (193.99.144.80), 30 hops max beginning with hop 1, 40 byte packets
1 BraeuSys.olsr (10.63.52.1) 12.563 ms 7.25 ms 3.421 ms
2 mid7.weimarnetz.olsr (10.63.52.30) 74 ms 59.897 ms 58.993 ms
</pre>

* auf dem Rootserver muss dann maskiert werden, damit als Quelle nicht 10.0.0.0/8 in den Paketen steht:
<pre>
iptables -t nat -I POSTROUTING -s 10.0.0.0/8 -d ! 10.0.0.0/8 -o venet0 -j SNAT --to-source 87.118.106.19
oder einfacher
iptables -t nat -I POSTROUTING -s 10.63.0.0/16 ! -d 10.63.0.0/16 -j MASQUERADE
</pre>

===Router mit 8mb problemlos over-the-air flashen===
<pre>
ssh router

URL="http://download.berlin.freifunk.net/ipkg/_se505/openwrt-se505-freifunk-1.6.36-de.bin"
FILE="/etc/init.d/S01firmware_burn"

wget -qO /www/fw.trx "$URL"
echo >$FILE -e "#!/bin/sh\n[ -e /www/fw.trx ] && /usr/sbin/firmware-burn /www/fw.trx"
chmod +x $FILE
reboot
</pre>

===RouterFehler Knoten6===
<pre>
[ -n "$( nvram get lan_gateway )" ] && fkt_masq_internet_traffic_over_lan_device
;;
esac

fkt_no_nat_for_wifi_clients
root@schubert19:~# /etc/local.fw-fff\+ masq
Jan 09 12:59:43 | [up 4421.87s 831488 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.info] check_if_this_node_offers_inet() local default-gateway found, only 4 hops away 8-)
Jan 09 12:59:43 | [up 4422.13s 942080 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) working
Jan 09 12:59:44 | [up 4422.57s 942080 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) detected alien LAN-gateway, trying to fetch DHCP-address
Jan 09 12:59:46 | [up 4424.59s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) using alienip '192.168.178.31' to reach gateway
Jan 09 12:59:46 | [up 4424.96s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) local alien-address gateway
Jan 09 12:59:46 | [up 4425.23s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) adding 192.168.178.31/24 on br0:aliennet
Jan 09 12:59:47 | [up 4425.56s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) adding default route
Jan 09 12:59:47 | [up 4425.88s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) success adding default route
Usage: /etc/init.d/S52vpn_fff+ (start|stop|restart (--force)|status)
/etc/local.fw-fff+: 36: func_packetfilter_show: not found
Jan 09 12:59:48 | [up 4426.63s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (masq_internet_traffic_over_lan_device) done
Jan 09 12:59:48 | [up 4426.96s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (fkt_no_nat_for_wifi_clients) Removing rules
iptables: No chain/target/match by that name
Jan 09 12:59:48 | [up 4427.26s 925696 bytes free] TERM:xterm /etc/local.fw-fff+ [daemon.debug] localfw_log() (fkt_nat_for_roaming_wifi_clients) Installing masquerading
root@schubert19:~# ip r

Jan 9 12:07:51 | daemon.info fff+ TERM:vt102 /etc/init.d/S52vpn_fff+ check_if_this_node_offers_inet(): local default-gateway found, only 4 hops away 8-)
Jan 9 12:07:53 | daemon.debug fff+ TERM:vt102 /etc/init.d/S52vpn_fff+ func_vpn_start(): no local default gateway - abort

root@schubert19:~# fkt_check_if_this_node_offers_inet
Jan 09 13:03:27 | [up 4646.21s 1314816 bytes free] TERM:xterm -ash [daemon.debug] check_if_this_node_offers_inet() PHYDEV: 'br0' METRIC: '' N: '' D: '192.168.178.1'
Jan 09 13:03:28 | [up 4646.93s 1282048 bytes free] TERM:xterm -ash [daemon.info] check_if_this_node_offers_inet() found local default-gateway over device 'br0' = 'lan'
lan

</pre>

===Uptime-Statistik-Netzweit===
[[Fries43-Sandkasten]]

==Grillparty auf Balkon vorbereiten==
# Getränke aus eigener Kasse bezahlen
# Wurst bringt Herr Bittorf mit
# Cocktails vorbereiten
# GoGo-Girls leasen

===Stoffsammlung openWRT: hacking new devices===

====Vendor / Model====
** one product, different vendors, different housings
** Lucent Technologies / Agere Systems Orinoco "Residential Gateway" Model RG-1000
** Apple Airport Base Station = Graphite Airport Base Station
** HP 802.11b Wireless LAN Small Business Access Point = HP HP-P1981A
** Compaq WL310 AP
** Dell Truemobile 1150 "RG 1000"
** AP-500, AP-1000
** Avaya wireless RG-1

====known IP's / factory defaults====

* 10.0.1.1/24
* 10.0.0.1/24
* 192.42.249.13/24
* 153.69.254.254/24
* 192.168.1.1/24

====Chips====
** AMD: Elan SC400-33AC Embedded x86 Processor / 96170
** ETHERNET, 10 mbit: 10baseT AMD PCnet ISA II (AM 79C961 AKC) ISA bridge (http://cateee.net/lkddb/web-lkddb/LANCE.html)
** RAM: 4096 KB
*** 2 x VG26V18165CJ SAO46U - 6
*** 1,048,576 x 16 - Bit CMOS Dynamic RAM
*** Vanguard International Semiconductor
** FLASH: 512 kb
*** 2 x IS61C256AH - 15J ; Q140561P 9942
*** 32,768 word by 8-bit static RAM
** MODEM: ? [http://xmodem.org/chipsets/conexant/conexant_rc56d.html | Conexant rc56d]
** ISDN: Hermstedt Mr.Happy v1.3
** miniPCI-Steckplatz: shipped with "Orinoco Silver"
** Power: 9 Volt DC @ 1100 mA

====Keywords on PCB====
** HomePOINT EVT 5.0
** RG-1000 V 3.65
** ISDN-PCB: Motorola Coldfire MCF5204PU25B

====Keywords in Firmware====
** <tt>tr -dc '[:print:]' <fw.bin</tt>
** Copyright 1991 thru 2000 by Doug Karl and The Ohio State University
** KarlBridge V3.79 Copyright 1991 thru 2000 KarlNet, Inc.
** Apple Network [...] Base Station V3.79 SN-xxxxxxxxxxxxxxxxxxxxxxxx

====Links====
** http://www.youtube.com/watch?v=aUVuWmcO6Bo (Interview in TV with Doug Karl)
** http://www.murgatroid.com/rg1000/rg1000.htm
** http://www.icir.org/fenner/airport/
** http://vilos.com/rg1000/
** http://gicl.cs.drexel.edu/people/sevy/airport/
** http://www.e-bulles.be/bubble/RC-1000
** http://bulles.topgame.be/bubble/Rg_Install
** http://seattlewireless.net/moin.cgi/OrinocoRg1000
** http://ftp.escom.bg/Linux/wireless/rg1000/
** http://www.seattlewireless.net/index.cgi/AirportLinux
** http://www.mspin.net/~jjhuff/airport_linux/
** http://www.ambrisko.com/doug/airport/
** http://www.mail-archive.com/ltsp-discuss@lists.sourceforge.net/msg01536.html
** http://www.plasma-online.de/english/upgrade/tweak/fixes/fix_apple_airport.html
** http://www.slac.stanford.edu/~strauman/pers/airport/

===Freie Seiten? / Trafficmessung inklusive===

* mal schauen, wieviel datenverkehr da so drueber geht?!

<pre>
ebay.de
google.de
google.com
gmx.de
de.wikipedia.org
web.de
yahoo.de
yahoo.com
weimarnetz.de
youtube.com
myspace
studivz
xing.com
youporn
</pre>

===Viele Dateien mit convert bearbeiten===
<pre>
find /bilder/verzeichnis -type f >/tmp/filelist.txt
awk '{print "File: \""$0"\"";system("convert -rotate \"+180\" \""$0"\" ps:jpg")}' /tmp/filelist.txt

oder (geht nicht!)

awk '{print "File: \""$0"\"";system("convert -rotate \"+180\" ps:jpg \""$0"\"")}' /tmp/filelist.txt
</pre>

===Ablage===
*[[Code-Schnipsel_POST-Daten_mit_netcat]]
*[[Code-Schnipsel_QUERY_STRING_eval_fff]]
*[[Code-Schnipsel_Layer7]]
*[[Firmwareentwicklung-Experimente]]
*[[SvenOlaTuecke-Mail2007jul18-dyngw_und_cron.minutely_iproute2]]
*[[SvenOlaTuecke-Mail2007aug12-mrate_und_rate_problem]]
*[[SvenOlaTuecke-Mail2007aug13-probe-request_und_wldog]]
*[[Sidd_aka_svenno_Mail2007aug15-tshirts_02caffeebabe]]
*[[SvenOlaTuecke-Mail2007sep12-sendeleistung,einheiten,wl,wifi,broadcom]]

===Flickr===
* Elektra: http://www.flickr.com/photos/rportrr/243944335/sizes/o/
* Kloschi, Alexander Klosch, Paidros: http://www.flickr.com/photos/rportrr/243230308/sizes/o/
* Kloschi, Cven: http://www.flickr.com/photos/rportrr/243229300/sizes/o/
* Kloschi, abgefrackt: http://www.flickr.com/photos/rportrr/243944300/sizes/o/
* Bastian, WCW 2006, Berlin, C-Base: http://www.flickr.com/photos/73737099@N00/117250898/sizes/o/
* Offline Horst, Horst Krause, Berlin WCW 2006: http://www.flickr.com/photos/73737099@N00/117251075/sizes/o/
* Freifunk-Ufo, Leipzig: http://www.flickr.com/photos/8479197@N05/518554165/sizes/o/
* Kloschi mit lauter staunenden Leuten: http://www.flickr.com/photos/tlauriau/292505965/sizes/o/
* Cven mit lauter staunenden Kindern: http://www.flickr.com/photos/tlauriau/292511284/sizes/o/

===Kot-Ablage===
<pre>
root@ex_eow:/etc/init.d# /usr/sbin/wl -i eth2 status

SSID: "weimar.freifunk.net"
Mode: Ad Hoc RSSI: -61 dBm noise: -97 dBm Channel: 5
BSSID: 02:CA:FF:EE:BA:BE Capability: None
Supported Rates: [ 1(b) 2(b) 5.5(b) 6 9 11(b) 12 18 24 36 48 54 ]

root@ex_eow:/etc/init.d# /usr/sbin/wl -i eth2 status | sed 's/: /=/g' | sed 's/=/=\"/g' | sed 's/\"\"/\"/g' | sed 's/$/\"/g' | sed 's/ \"/\"/g'

SSID="weimar.freifunk.net""
Mode="Ad Hoc RSSI="-63 dBm noise="-97 dBm Channel="5"
BSSID="02:CA:FF:EE:BA:BE Capability="None"
Supported Rates="[ 1(b) 2(b) 5.5(b) 6 9 11(b) 12 18 24 36 48 54 ]"

Fehlt noch:
* alle Vorkommen von '[[:space:]]Buchstaben' durch '"Buchstaben' ersetzen
* alle Vorkommen von 1 oder mehreren Leerzeichen + " durch " ersetzen
</pre>

===Kot-Ablage2===
<pre>
ALLE Router listen lassen
wget -O - http://127.0.0.1:2006 | sed -e '/./{H;$!d;}' -e 'x;/Table: Routes/!d;' | grep HOST | grep -v \.254 | grep -v \.253 | awk '{print $1}' | sort -n
</pre>

<pre>
pppoecd-Einwahl:

eval $(netparam);USER="$(nvram get pppoe_username)";PASS="$(nvram get pppoe_passwd)"
pppoecd $WANDEV -u $USER -p $PASS
</pre>

===Kot-Ablage3===
* [[poormens_desktop_search_engine.sh]]

===Kot-Ablage4===
* Netzknotennummer mit alter Firmware, emails zusammensammeln
<pre>
LIST="$(wget -O - http://127.0.0.1:2006 | grep 255\.255\.255\.240 | awk -F. '{print $3}' | sort | uniq)"
for NN in $LIST; do wget -O - http://10.63.$NN.1/cgi-bin-contact.html | awk '/E-Mail:/ {print}';done
</pre>

===Kot-Ablage5===
* alle aktiven Router zaehlen:
<pre>
wget -O - http://127.0.0.1:2006 | sed -e '/./{H;$!d;}' -e 'x;/Table: Routes/!d;' | grep "/32" | grep -v ".254/32" | grep -v ".253/32" | grep -v ".33/32" | grep -v ".97/32" | sort | wc -l
#
</pre>

=Bulle Mario in Weimar=
* [[Mario Bueckert und Mario Bueckert als Bulle bzw. Kuh Bueckert|Bulle Mario Bueckert]]

===IPK-Kompatible Paketliste auf dem Root-Server erzeugen lassen===

<pre>
OUT="Packages"; >$OUT; for FILE in $(ls -1 *.ipk); do echo -en "$FILE: "; tar xzf "$FILE" ./control.tar.gz; tar xzf control.tar.gz ./control; cat >>$OUT control; stat --printf "Size: %s\nFilename: %n\n\n" $FILE >>$OUT; rm -f control control.tar.gz; echo "ok"; done
</pre>

===Fachbücher bestellen===
* [http://www.buchhandlung-rockenstein.de Fachliteratur (O'Reilly etc) online bestellen im Buchgeschäft Schleusingen]
* [http://www.buchhandlung-schleusingen.de Kinderbücher bestellen im Buchgeschäft Rockenstein]
* Suchmaschinenfänger 8-)

===Eigenes IPK automatisch erzeugen lassen===
<pre>
#!/bin/sh

URL="http://pgl.yoyo.org/as/serverlist.php?showintro=0;hostformat=hosts"
IPKG_NAME="fff-adblock-list"
IPKG_VERSION="0.1.0"
IPKG_CPU="mipsel"

echo "2.0" >"debian-binary"

cat >control <<EOF
Package: $IPKG_NAME
Priority: optional
Version: $IPKG_VERSION
Architecture: $IPKG_CPU
Maintainer: Bastian Bittorf <bittorf@bluebottle.com>
Depends: iptables-mod-filter
Section: networking
Description: installs actual adblock-hosts-list (build: $(date +%Y_%m_%d))
Source: $URL
EOF

tar cvzf control.tar.gz ./control

mkdir tmp
wget -qO - "$URL" | sed -n '/127\.0\.0\.1/p' | sed 's/127\.0\.0\.1 //' >tmp/hosts.drop
tar cvzf data.tar.gz tmp/

tar cvzf ${IPKG_NAME}_${IPKG_VERSION}_${IPKG_CPU}.ipk ./debian-binary ./control.tar.gz ./data.tar.gz

rm -fR tmp/
rm data.tar.gz
rm control
rm control.tar.gz
rm debian-binary

</pre>

===get_mac_from_random_node.sh===
<pre>
#!/bin/sh

fkt_prepare () {
FFF_NET=10
FFF_CITY=63

STATUS_PAGE="/tmp/temp_status_page.txt"
}

fkt_calc_node_from_ip () { # SENS: calculate nodenumber from IP-address
# ARG1: ip-address
local IP="$1"
local OKT3="$(echo $IP | sed 's/[0-9]*\.[0-9]*\.$[0-9]*$\.[0-9]*/\1/g')"
local OKT4="$(echo $IP | sed 's/[0-9]*\.[0-9]*\.[0-9]*\.$[0-9]*$/\1/g')"

if [ -z "$(echo $IP | sed "/^$FFF_NET\.$FFF_CITY\./!d")" ]; then # ip is not from mesh e.g. 192.168.1.2
echo "0"
return
fi

if [ "$OKT4" -gt "-1" ] && [ "$OKT4" -lt "64" ]; then echo $OKT3
elif [ "$OKT4" -gt "63" ] && [ "$OKT4" -lt "128" ]; then echo $(( $OKT3 + 255))
elif [ "$OKT4" -gt "127" ] && [ "$OKT4" -lt "192" ]; then echo $(( $OKT3 + 510))
elif [ "$OKT4" -gt "191" ] && [ "$OKT4" -lt "256" ]; then echo $(( $OKT3 + 765))
fi
}

fkt_wget () {
local C=0 # counter (raising) for maximal seconds
local MAX=15 # maximal running time in seconds
local URL="$1"
local PID_WGET=""
local PID_LINE=""
local PID_LINE_NOW=""

wget -qO - "$URL" 2>/dev/null &
PID_WGET="$(pidof wget | sed 's/ /\n/g' | sed '$!d')" # list of all wget-pid's, insert newlines, print last line
PID_LINE="$(cat /proc/$PID_WGET/cmdline 2>/dev/null)" # exact line of ps-output

while [ -e "/proc/$PID_WGET" ]; do # wget-process in tasklist?
sleep 1
let C+=1

PID_LINE_NOW="$(cat /proc/$PID_WGET/cmdline 2>/dev/null)"

if [ $C -gt $MAX ]; then # maximal execution time reached
if [ "$PID_LINE" = "$PID_LINE_NOW" ] ; then # is this really the started process?

logger "wgetting \"$URL\" - killing pid $PID_WGET after $C seconds"
kill $PID_WGET 2>/dev/null >/dev/null
return
else # this is another process
logger "wgetting \"$URL\" - ready after $C seconds (\"$PID_LINE"\" != \"$PID_LINE_NOW"\")"
return
fi
fi
done

logger "wgetting \"$URL\" - ready after $C seconds"
}

fkt_get_random_node () {
local OLSR_INFO="wget -qO - http://127.0.0.1:2006"
local OLSR_TOPO="sed -e '/./{H;$!d;}' -e 'x;/Table: Topology/!d;'"
local OLSR_NODE="sed -e '/^[0-9]/!d' -e 's/^$[0-9.]*$ *.*/\1/g'"

local ALL_NODES="$( $OLSR_INFO | sed -e '/./{H;$!d;}' -e 'x;/Table: Topology/!d;' | sed -e '/^[0-9]/!d' -e 's/^$[0-9.]*$ *.*/\1\n/g' | sort | uniq )"
local COUNT_ALL="$( echo -en "$ALL_NODES" | wc -l )"

local RAND_SEED="$( dd if=/dev/urandom bs=2 count=1 2>&- | hexdump | if read line; then echo 0x${line#* }; fi )"
local RAND_NUMB="$(( $RAND_SEED % $COUNT_ALL ))"

RAND_NODE="$( echo -en "$ALL_NODES" | sed "${RAND_NUMB}q;d" )" # IP-address from random node
RAND_NODE_ESCAPED="$( echo "$RAND_NODE" | sed 's/\./\\./g' )"

test -z "$RAND_NODE" && fkt_get_random_node # maybe not necessary
}

fkt_get_status () {
fkt_wget "http://$IP/cgi-bin-status.html" >$STATUS_PAGE 2>/dev/null

local MAC="$(sed -e '/^MAC/!d' -e 's/^MAC: $.*$<\/TD>/\1/g' $STATUS_PAGE)"
local TYP="$(sed -e '/^<TD>Boardtype:/!d' -e 's/^<TD>Boardtype: $.*$, Boardnum: $.*$<\/TD>/\1-\2/g' $STATUS_PAGE)"
local DEF="$(sed -e '/^<TD>default via/!d' -e 's/.*html">$.*$<\/A>.*/\1/g' $STATUS_PAGE)"
local FFF="$(sed '/.*[0-9]\.[0-9]\.[0-9]*<\/TD>/!d;s/.*$[0-9]\.[0-9]\.[0-9]*$<\/TD>/\1/g;q' $STATUS_PAGE)"

if [ "$(echo $MAC | sed 's/..:..:..:..:..:../ok/g')" != "ok" ]; then
if [ "$OLD_MAC" != "00:00:00:00:00:00" ]; then # old mac already in database
NEW_MAC="$OLD_MAC"
else
NEW_MAC="00:00:00:00:00:00" # standard-value
fi
else
NEW_MAC="$MAC"
fi

if [ -z "$TYP" ]; then
if [ "$OLD_TYP" != "router" ]; then
NEW_TYP="$OLD_TYP"
else
NEW_TYP="router"
fi
else
if [ "$(fkt_calc_node_from_ip "$TYP")" = "0" ] || [ "$(fkt_calc_node_from_ip "$TYP")" = "$(fkt_calc_node_from_ip "$IP")" ]; then
NEW_TYP="INTERNET"
else
NEW_TYP="$TYP"
fi
fi

if [ -z "$DEF" ]; then
if [ "$OLD_DEF" != "gateway" ]; then
NEW_DEF="$OLD_DEF"
else
NEW_DEF="gateway"
fi
else
NEW_DEF="$DEF"
fi

if [ -z "$FFF" ]; then
if [ "$OLD_FFF" != "0.1.2" ]; then
NEW_FFF="$OLD_FFF"
else
NEW_FFF="0.1.2"
fi
else
NEW_FFF="$FFF"
fi

rm $STATUS_PAGE
}

case $1 in
start)
fkt_prepare
fkt_get_random_node
IP=$RAND_NODE
fkt_get_status

test -z "$NEW_MAC" && NEW_MAC="00:00:00:00:00:00"
echo "$( fkt_calc_node_from_ip $IP) $NEW_MAC"
;;
*)
echo "Usage: $0 start"
;;
esac
</pre>

===NVRAM klaeren und saeubern / aus CFE wiederherstellen ohne Reboot===

<pre>
# Vorbereitung: Daten aus Original-CFE extrahieren:
strings /dev/mtdblock/0 | awk '{m=match($1,"=");if(substr($1,m+1,1)=="%")exit;if(m>0)print "nvram set "$1";"}' >/tmp/cfe_original.txt

# Vorbereitung: Unnuetzen Mist loeschen:
nvram show | grep -v il0macaddr | grep -v et0macaddr | grep -v ff_dsskey | grep -v ff_pw | grep -v ff_reset | awk '{m=match($0,"="); print "nvram unset \""substr($0,1,m-1)"\""}' >/tmp/delete_nvram.txt

# Vorbereitung: cron.minutely umbennen
mv /usr/sbin/cron.minutely /usr/sbin/cron.minutely_old

# Loeschen und '''schnell''' neuerzeugen (Schnelleinstellung durchlaufen lassen, sofort wenn das Skript durchgelaufen ist, sonst bricht die WLAN-Verbindung ab...)
sh /tmp/delete_nvram.txt; sh /tmp/cfe_original.txt; nvram set boot_wait=on; mv /usr/sbin/cron.minutely_old /usr/sbin/cron.minutely

# Fertig!
</pre>

===Zwang-Interface Aufteilung===
*Skizze (haesslich!):
<pre>
~~|~~
|
___________________________|_______
| ("bridge interfaces") | | | | z.b: Linksys WRT-54-GL
| =lan_ifnames \___/ | lan_ifnames=vlan0
| 5fach-Switch =wl0_ifname | lan_ifname=br0
| / \ =wifi_ifname| wl0_ifname/wifi_ifname=eth1
| / \ | wan_ifname=vlan1
|=lan_ifname =wan_ifname |
|("bridge name") | z.b. Dell Truemobil 2300
| ________ __ | lan_ifnames=eth0
| | | | | | | | | lan_ifname=br0
|_4xEthernet___1xEthernet_________| wl0_ifname/wifi_ifname=eth2
wan_ifname=eth1
</pre>

===Interface Bestimmung===
<pre>
A=$(nvram get lan_ifnames)
B=$(nvram get lan_ifname)
C=$(nvram get wl0_ifname)
D=$(nvram get wifi_ifname)
E=$(nvram get wan_ifname)
F=$(nvram get boardtype)
G=$(nvram get boardnum)
H=$(nvram get et0phyaddr)
I=$(nvram get vlan0ports)
J=$(nvram get vlan1ports)
echo $H-$F-$G : \"$A\" \"$B\" \"$C\" \"$D\" \"$E\" \"$I\" \"$J\";
</pre>

===Interface-Tabelle===
<pre>
Knotennummer Geraet Ausgabe
36/166 SE505+8mb 30-0x0101- : "vlan0" "br0" "eth1" "eth1" "vlan1" "0 1 2 3 5*" "4 5"
16 Linksys ? 30-0x0101-42 : "vlan0" "br0" "eth1" "eth1" "vlan1" "1 2 3 4 5*" "0 5"
54/240 Linksys-WRT54G 30-0x0708-42 : "vlan0" "br0" "eth1" "eth1" "vlan1" "1 2 3 4 5*" "0 5"
104 Linksys-WRT54GL 30-0x0467-42 : "vlan0" "br0" "eth1" "eth1" "vlan1" "3 2 1 0 5*" "4 5"
518 Asus500gPremium 30-0x042f-45 : "vlan0" "br0" "eth2" "eth2" "vlan1" "1 2 3 4 5*" "0 5"
513 Dell2300 30-bcm94710ap-44 : "eth0" "br0" "eth2" "eth2" "eth1" "" ""
519 Asus_WL_HDD 0-bcm94710dev-asusX : "" "br0" "eth2" "eth2" "none" "" ""

517 WAP_v10 -bcm94710dev-2 : "" "br0" "eth2" "eth2" "none"
766 Allnet 0277 -bcm94710dev-42 : "vlan2" "br0" "eth2" "eth2" "vlan1"
520 Asus500g(old) 30-bcm94710dev-asusX : "" "br0" "eth2" "eth2" "vlan1"
128 WAP ?? ??
</pre>

===Asus500g premium - webcam===
<pre>
ipkg install kmod-usb-uhci (?)
ipkg install kmod-usb2
= kmod-usb-core
= kmod-usb2
(insmod usbcore)
(insmod ehci-hcd)
ipkg install libpthread (?)
ipkg install kmod-videodev
ipkg install philips-webcam (weimarnetz-repo)
ipkg install http://ftp.iasi.roedu.net/mirrors/openwrt.org/backports/rc5/motion_3.2.6-1_mipsel.ipk
ipkg install http://naaa.de/programme/motion/libjpeg_6b-1_mipsel.ipk

ipkg install lsusb
ipkg install kmod-usb-storage
ipkg install kmod-vfat
(mount -t usbfs none /proc/bus/usb) ???

'''/etc/init.d/S90webcam''':
<pre>
insmod videodev
insmod pwc leds=0,0
insmod pwcx
</pre>

'''/etc/motion.conf''':
http://www.lavrsen.dk/twiki/bin/view/Motion/ConfigFileOptions
</pre>

<pre>
daemon on
quiet on

videodevice /dev/v4l/video0
width 640
height 480

target_dir /mnt/usbstick
jpeg_filename %Y/%m/%d/%H_20-40/%M.%S.cam

snapshot_filename %Y/%m/%d/%H_20-40/%M.%S.snap
snapshot_interval 60

text_left "Bastian TV"
locate on # draw box around moved object

low_cpu 1 # only 1 picture per second when no moving
framerate 2 # maximum per second

webcam_port 8080
webcam_localhost off
webcam_motion 1 # only 1 frame per second when no motion
</pre>

===Notizen===
*CFE erstellen online: http://lonewolf.hacker-nin.com/wrt/cfe/
*Geschichte von OLSR: https://www.open-mesh.net/optimized-link-state-routing-deamon/olsr-story.txt/view
*http://mailman.ccsds.org/pipermail/sis-scps-interest/2006-November/000373.html

===TrafficShaping / QoS / Eselbremse deluxe===
* von langsam nach schnell - einfach dinge hinzufuegen
* die klassendefinition / L7-Definitionen sind ausgelagert, ist mehr nen framework
<pre>
fkt_table class 1 networking icmp,syn,ack,olsr,dns,small net1

fkt_table class 2 game wow,moha,quake,cs net1
fkt_table class 2 remote_access ssh,telnet,rdp,vnc,X11 net1
fkt_table class 2 phone H323,skype,skypeout,teamspeak,sip net1
fkt_table class 2 monitoring snmp,ntp net1

fkt_table class 3 www http,https net1

fkt_table class 4 streaming radio,shoutcast,icecast,flash,youtube net1
fkt_table class 4 networking openVPN,tinc,vtun,bgp net1
fkt_table class 4 mail imap,pop3,spop,smtp,ssmtp,nntp net1
fkt_table class 4 chat aim,icq,msn,jabber,yahoo,irc net1

fkt_table class 5 printer lpd net1
fkt_table class 5 file samba,ftp net1
fkt_table class 5 p2p ipp2p net1
fkt_table class 5 unknown unknown,ssl,update net1
</pre>

===Hardwaretyp feststellen===
* in der Weimarnetzfirmware findet man mit http://eigener_router/cgi-bin-info.html?h heraus, was an Technik drin ist.
* Den Hardwareindex ("fix-index") mal bitte dokumentieren:
<pre>
926db47246 - Kunstturm - k54 - Linksys WRT54G - SN: ???
ee0048c876 - Roehr30 - k249 - Buffalo WHR-HP-G54 - SN: ???
12cf47b37d - Schoendorf - k186 - Linksys WRT54GL - SN: ???
aa2b1b94d7 - muentzer24 - k24 - Linksys ??? - SN: ???
aa2b1b94d7 - M2 - k7 - Linksys WRT54G - SN: ???
aa2b1b94d7 - reuterric - k51 - Siemens SE505 v2.0 - SN: ??? - 8mb RAM nachgeloetet
3dc768379f - wagner11 - k64 - Linksys ??? - SN: ???
6720f2d909 - muentzer 29 - k65 - Siemens SE505 v2.0 - SN: ???
??? - jensmausolf - k8 - AsusWL-HDD - SN: ???
44af4fde69 - fries43test - k999 - WAP54g_v1.0 - SN: MDG003502134 - 4mbFlash/16mbRAM
aa2b1b94d7 - geleit23 - k16 - Linksys Wrt54g - SN: ???
6720f2d909 - Ossi 53 - k165 - Siemens SE505 v2.0 - SN: ???
6720f2d909 - Curie 40 - k36 - Siemens SE505 v2.0 - SN: ???
12cf47b37d - Taubacher27 - k21 - Linksys Wrt54gs v4 - SN: ???
aa2b1b94d7 - Nordpol - k210 - Linksys WRT54G - SN: ???
926db47246 - Lutherhof 1b- K18 - Linksys WRT54G - SN: CDF70E215436
</pre>

* Genaue Angaben:
**[[HWindex-926db47246|926db47246]]
**[[HWindex-ee0048c876|ee0048c876]]
**[[HWindex-12cf47b37d|12cf47b37d]]
**[[HWindex-aa2b1b94d7|aa2b1b94d7]]
**[[HWindex-3dc768379f|3dc768379f]]
**[[HWindex-6720f2d909|6720f2d909]]
**[[HWindex-44af4fde69|44af4fde69]]

===Besorgen===
* buch:
**Die Gelehrten der Scheibenwelt, Pratchett/Stewart/Cohen
**Eine Kurze Geschichte von fast allem, Bill Bryson
* Hardware:
** Buffalo Airstation WLA-g54c mit MiniPCI
** Broadcom 5 Ghz Karte
*** Dell Truemobile 1400 mit BCM-4309 - MiniPCI -> genau das gleiche wie BCM-4306 oder Dell 1450/1470
** Asus/Yakumo: http://www.pollin.de/shop/detail.php?pg=Ng==&a=MjgxOTgyOTk=&ts=0
* Film:
** very bad things
** greek wedding
** you kill me
** out of rosenheim

===Machen!===

====Software testen====
* dezentrales filesharing, http://zimpro.zudha.com/

====Fleissarbeit====
* geklauten Router finden: 00:0f:66:24:cf:1e
** siehe codeschnipsel
** am 2.10.06 nix dabei [[Benutzer:Storchi|Storchi]] 16:20, 2. Okt 2006 (CEST)
* Registrierung
** doppelte fixen: 20,176,175
** fehlende fixen: 11,12,167,168
** nichtexistente nodes aussortieren (rundmail)
** nichtregistrierte rausfinden
* Bilder Lotte-Interview hochladen
* Kontakt Martin Heise
* Archiv der Maillisten ziehen und backuppen
* im [http://www.kinderhaus-weimar.de/ Kinderhaus ] Router+Rechner installieren

====Frickelkram====
*[[Proxy-Zwangsumleitung]] & [http://de.wikipedia.org/wiki/IPCop IPCop] erforschen

====Arbeit====
* RAID-Controller aus TeraStar aus und in SVN-Server einbauen
* Nodeaufbau aufs Dach [[Roehr-30]]
* Knut / Oberweimar / Antennenkabel vor-Ort crimpen
* Dachinstallation Fries43/28 schickmachen
* Rundblick Fries28 machen
* ACC.cafe ans weimarnetz anbinden (DSL!)
* ACC.privat/Schuetzengasse ans weimarnetz anbinden (DSL!)
* Nodeaufbau [[Freiligrath-19]] + uwe
* SIP-Nummer in M18, Tim = 544020
* Registrator fixen

====Schreibkram====
* Handzettel Hausmitbewohner & Handzettel Vermieter entwerfen
* Schlossturm dauerhaft! (Brief an Frau Steindorf schreiben,2 x CD mit Bildern brennen,Dankes-Brief + 2 Flaschen Wein)
* Freifunk-Magazin Bericht schreiben
* [[Wie_funktioniert_die_Registrierung]] verbessern
* [[Wie_funktioniert_die_MAC-Adressen_Verteilung]]
[[Kategorie:Projekt]]

===Code-Schnipsel===
* siehe [[Code-Schnipsel]]

===WAP-HowTo===
<pre>
WAP v1.0 flashen
----------------

- Resetknopf solange druecken, bis LAN-LED ausgehen und wieder angehen
- IP vom WAP = 192.168.1.245
- Username: leerlassen
- Passowort: admin
- Firmware bei mir: v2.07, Apr 08, 2004; MustDie revision 1
-> Help -> Firmware upgrade

- flashen mit: "Freya-v2.06-1sv.trx"
- Firmware nun: "v2.06, Dec 16, 2003"

- telnet einschalten (setup -> ganz unten)
- nvram get boot_wait ->muss "on" sein.

# nvram show|grep lan
lan_netmask=255.255.255.0
http_lanport=80
lan_stp=1
lan_hwaddr=00:0C:41:13:EF:CF
lan_ifnames=eth1 eth2
lan_ipaddr=192.168.1.245
lan_proto=static
lan_ifname=br0
lan_hwnames=et1 wl0

# free
total used free shared buffers
Mem: 14540 5240 9300 0 876
Swap: 0 0 0
Total: 14540 5240 9300

- http://192.168.1.245/fw-conf.asp ->downgrade-header disable 8-)
- flashen mit: "openwrt-freifunk-v1.2.5.trx"
</pre>

Weimarnetz Wiki - Benutzerbeiträge [de]

Fries43-ToDo