B.A.T.M.A.N

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15 participants
4308 discussions

[B.A.T.M.A.N.] Batman on Openmoko / cellular phone hot spot / Batman vs. Joiku
by thomasasta＠gmx.net 08 Feb '08

08 Feb '08

Hello Please bring B.A.t.m.a.n. on ww.openmoko.org you find a developer environment emulator simulation on the homepage to test without phone. http://www.computerwelt.at/detailArticle.asp?a=114126&n=1 http://www.joiku.com/?action=products&mode=productDetails&product_id=310 Offer Joiku your code! -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail

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[B.A.T.M.A.N.] get the branches explained
by Marek Lindner 06 Feb '08

06 Feb '08

Hi, in the last months many new branches were created and many numbers are floating around which caused much confusion. Here comes a brief summary why these branches and numbers were created, what they are good for and who is behind it: Whenever we mention Roman numerals (as II or III) we speak of B.A.T.M.A.N.'s routing algorithm version. It describes how the routing information are flooded and how they are handled to make the best routing decission possible. Arabic numerals are used to distinguish the version of our implementation. Next to the routing algorithm many features and goodies are added to simplify the users life. Example: batman 0.2 uses the B.A.T.M.A.N. III routing algorithm. === batman-0.2 === [Maintainer: Marek Lindner, Axel Neumann] - 0.2 stable was created last summer and represents our implementation of the BATMAN III routing algorithm. It works quite well and stable but has a major flaw while routing strong asymetric links. That is why we began working on a new algorithm - 0.2 is to be deprecated soon. === batman-0.3 === [Maintainer: Marek Lindner, Andreas Langer] - The 0.3 branch brought a bunch of new features and updates to 0.2, especially a newly designed routing algorithm. It seems rather stable but needs some more testing before replacing the current stable version. === batman-experimental (aka bmx) === [Maintainer: Axel Neumann] - This branch kept the 0.2 routing algorithm and tried to overcome its flaws by extending it. Despite its name it is neither specifically unstable nor contains the latest features for the 0.3 branch (we are not debian ;-) ). Under the hood it shares much code with 0.3 - not more or less. === batman-advanced (aka batman-adv aka batman-adv-userspace) === [Maintainer: Simon Wunderlich, Marek Lindner] - In April 2007 batman advanced (residing in user space) came to light. It was a layer 2 implementation of batman 0.2. Since then it was continuously worked on and uses the batman 0.3 routing algorithm today. It builds a switch of all your nodes and enables you to ran any protocol (IPv4, IPv6, ..) on top of it. === batman-saxnet (merged back into batman-adv-userspace) === [Maintainer: www.saxnet.de] - In autumn 2007 Saxnet (a German company) wanted to use our layer 2 implementation for their products. They tested, fixed and improved our layer 2 implementation. Therefore they got an extra branch which was merged back into our batman advanced userspace branch. === batman-adv-kernelland === [Maintainer: Marek Lindner] - Due to the testing we realized that the layer 2 implementation in user space suffered from many performance problems. In late 2007 we ported our layer 2 implementation to kernel space in form of a kernel modul. At the moment it is heavily worked on and a release is to be expected in the coming weeks. === battools === [Maintainer: Andreas Langer] - The battools are a set of debugging tools which work together with our layer 2 implementation (user space and kernel land). You can use them to debug the mesh which proved to be difficult without them. Regards, Marek

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[B.A.T.M.A.N.] Rev 972: VIS not working
by Freifunk Dresden 02 Feb '08

02 Feb '08

Hi, I'm currently try using batmand-experimental Rev.972. First the visualisation server does not show any connections. Have two routers with batmand-exp rev 972 running. It seems that this batman version is not compatible with the vis-server. When I use the old version of vis, I get the dot information when I call "telnet localhost 2004". I assume that the batman-exp implementation still uses the old compatibility version for vis. /Stephan

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[B.A.T.M.A.N.] Problems with 0.3-beta rv963 and kmod-batgat
by Vinay Menon 01 Feb '08

01 Feb '08

Hi, I am testing out batman 0.3-beta rv963 with openwrt-trunk (r10219) . I could get the expected results when i am using tun instead of kmod-batgat . but when i use kmod-batgat even tho the tunnel gate0 is established the routing rules and firewall is same as with kmod-tun i cant get traffic thru gate0 My Setup: ---- Wired - - - - WiFi 192.168.111.1-----(WAN)-192.168.111.74(Gateway)10.1.125.158 - - - - - - 10-1-125-158 (Node2) *With kmod-batgat:* from ping 192.168.111.1 -I gate0 ##on gateway root@10-1-125-158:~# lsmod |grep batgat batgat 10976 1 ##Ping from Node root@Node2:~# ping 192.168.111.1 -I gate0 PING 192.168.111.1 (192.168.111.1): 56 data bytes --- 192.168.111.1 ping statistics --- 46 packets transmitted, 0 packets received, 100% packet loss ##tcpdump on node root@10-1-125-158:~# tcpdump -i gate0 proto \\icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on gate0, link-type EN10MB (Ethernet), capture size 96 bytes 0 packets captured 0 packets received by filter 0 packets dropped by kernel *With kmod-tun:* root@10-1-125-158:/# lsmod |grep tun tun 6592 1 *##on Node* batman -cd2 Gateway (#/255) Nexthop [outgoingIF], gw_class ... [ B.A.T.M.A.N. 0.3-beta rv963, MainIF/IP: ath0/10.1.124.248, UT: 0d 0h52m] => 10.1.125.158 (255 + 0) 10.1.125.158 [ ath0], gw_class 49 - 4MBit/1024KBit, reliability: 0 *##Ping from Node* root@Node2:~# ping 192.168.111.1 PING 192.168.111.1 (192.168.111.1): 56 data bytes 64 bytes from 192.168.111.1: seq=0 ttl=63 time=8.473 ms 64 bytes from 192.168.111.1: seq=1 ttl=63 time=6.585 ms *##tcpDump on gateway's gate0* root@10-1-125-158:/# tcpdump -i gate0 proto \\icmp tcpdump: WARNING: arptype 65534 not supported by libpcap - falling back to cooked socket tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on gate0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes 00:50:45.798376 IP 169.254.0.1 > 192.168.111.1: ICMP echo request, id 1004, seq 0, length 64 00:50:46.614360 IP 192.168.111.1 > 169.254.0.1: ICMP echo reply, id 1004, seq 0, length 64 00:50:46.805310 IP 169.254.0.1 > 192.168.111.1: ICMP echo request, id 1004, seq 1, length 64 00:50:46.806369 IP 192.168.111.1 > 169.254.0.1: ICMP echo reply, id 1004, seq 1, length 64 *##tcpDump on gateway's eth0* root@10-1-125-158:/# tcpdump -i eth0 proto \\icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes 00:48:29.108148 IP 192.168.111.74 > 192.168.111.1: ICMP echo request, id 1003, seq 6, length 64 00:48:29.145367 IP 192.168.111.1 > 192.168.111.74: ICMP echo reply, id 1003, seq 6, length 64 Also at times ip rules dont appear on node and i have to restart batmand to get the network working. -- Vinay Menon

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[B.A.T.M.A.N.] IMPORTANT: batman-exp <rv972 goes crazy after 49 days uptime
by Axel Neumann 01 Feb '08

01 Feb '08

Hey, I found out that the batman-exp daemon goes crazy when its internal life-time variable overflows. This will happen after 49 days, 17 hours, 2 minutes, and 48 seconds (which corresponds to 2^32 milliseconds). Unfortunately, its behavior afterwards can be anything between hanging around and doing nothing and an endless loop of sending packets. The problem is fixed with revision 972. If you are running batman-exp I strongly suggest to update. ciao, axel

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[B.A.T.M.A.N.] gateway class/batmand termination
by Freifunk Dresden 31 Jan '08

31 Jan '08

Hi, I have implemented a mechanism that checks for a working internet connection. Depending on this batmand is called either with options "-c -b -r2" or "-c -b -g 1024/1024". Most often when batmand is called with "-c -b -g 1024/1024" batmand terminates: batmand -c -b -g 1024/1024 WARNING: You are using BatMan-eXp 0.3-alpha (compatibility version 10) ! Connection terminated by remote host. I have to restart batmand, but all routes are removed and batman loses its data. I also have to check for the internet connection again and must hope that batmand does not terminate. Batmand does not terminate every time. Any ideas? Tested rev. 966 (batman-experimental) /Stephan

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[B.A.T.M.A.N.] batman OpenWRT integration
by Marek Lindner 28 Jan '08

28 Jan '08

Hi, finally I finished updating all the batman OpenWRT packages. Additionally, you can find the tunnel kernel modul, the battools and batman advanced (layer 2) kernel module in OpenWRT now. You need the latest trunk to get these updates. We are already working on a backport to 07.09 kamikaze but I'm not sure that these files are included in the official SVN repository. Feel free to contact me if you have any thoughts / wishes / bugs on that. Greetings, Marek

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[B.A.T.M.A.N.] Memory leak
by Freifunk Dresden 26 Jan '08

26 Jan '08

Hello, I have a problem where batman (rev871 and rev908) consumes more and more memory until the router has no memory. I have added the output of the "top" command and the command line arguments of my setup. (WRT 10-1).....wlan.......(wrt 10-2) =======tinc vpn=====(laptop debian 0-1) kernel 2.4.32 kernel 2.4.32 kernel 2.6 I have seen that one batman thread changes the PID where the other stay the same. Below you will find the "top" output for batmand when it was started and after about one hour. The batmand running on kernal 2.6 does not increment its memory needs. Perhaps there are some allocation of memory that is not freed because of the arguments of the batmand. There is no special traffic on those nodes, they just are connected. Any Ideas? Regards Stephan linux 2.6. (0-1) /usr/bin/batmand -g 1024/200 -a 104.61.0.0/16 -a 141.56.20.5/32 -s 10.12.0.1 --no-unreachable-rule --no-throw-rules --no-prio-rules --resist-blocked-send wifi tbb /t 1 /i /A wifi is a unused bridge 1 batmand PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 6612 root 15 0 19136 684 532 S 0.3 0.1 0:27.85 batmand #################################################################### linux 2.4.32 (wrt GL 10-2) /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule --no-throw-rules --no-prio-rules --resist-blocked-send eth1 tbb /t 1 /i /A 3 batmands PID PPID USER STAT VSZ %MEM %CPU COMMAND 847 846 root S 1196 4% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule 3937 847 root S 1196 4% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule 848 847 root S 1196 4% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule ---------- 848 847 root S 2076 7% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule 847 846 root S 2076 7% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule 22570 847 root S 2076 7% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.16/28 -r 2 --t 63 --no-unreachable-rule #################################################################### linux 2.4.32 (wrt GL 10-1) /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule --no-throw-rules --no-prio-rules --resist-blocked-send eth1 4 batmands PID PPID USER STAT VSZ %MEM %CPU COMMAND 837 1 root S 1292 9% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 838 837 root S 1292 9% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 11854 838 root S 1292 9% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 839 838 root S 1292 9% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - --------- 837 1 root S 2172 15% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 838 837 root S 2172 15% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 30544 838 root S 2172 15% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule - 839 838 root S 2172 15% 0% /sbin/batmand -s 10.12.0.1 -a 10.12.10.0/28 -r 2 --t 63 --no-unreachable-rule -

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[B.A.T.M.A.N.] batmand_0.3~r875 debian packages available
by Holger Levsen 25 Jan '08

25 Jan '08

Hi, yesterday night I've uploaded 0.3 svn r875 packages to Debian experimental, they are also available at http://layer-acht.org/batmand/ for etch and sid. Feedback welcome! regards, Holger

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[B.A.T.M.A.N.] recorded talks
by Marek Lindner 05 Jan '08

05 Jan '08

Hi, I just uploaded our batman talks from the camp and 24C3. You can find them here: http://downloads.open-mesh.net/batman/misc/ Have fun, Marek

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