- Ibr-dtn - lists.ibr.cs.tu-bs.de

Ibr-dtn v.0.10.0 ibrdtn.stats missing?
by Shyam B 10 Sep '13

10 Sep '13

Hi DTN folks/masters, I am using Raspberry PI. I just updated the Raspbian Wheezy and upgraded to the latest* version 0.10.0 of ibrdtn*. I just did (sudo apt-get ibrdtnd ibrdtn-tools). Unfortunately, I cannot see the */tmp/ibrdtn.stats* in the folder. The stats commands are also missing in the ibrdtn.conf file. I have all the required permissions for this folder. In my own program, *I read this file*to get the neighbor node's status (i.e. if they are available) and not I am unable to. This feature was available in the previous version of ibrdtn (which I am unable to retrieve now - I cannot see the earlier version in the Raspbian repository! In the version update: http://trac.ibr.cs.tu-bs.de/project-cm-2012-ibrdtn/wiki/changelog: It says: - Statistic Logger replaced by API management calls What does this mean? If there is an API, where is it and what is the easy way of calling *this API*? I am programming in python.. Also, I would like to know the difference between DTN2 and IBRDTN, which one is better to use and why/ why not? Thank you and I hope I can get some help! -- Best Regards, Shyam

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schildt@ibr.cs.tu-bs.de
by Shyam B 10 Sep '13

10 Sep '13

Hi DTN folks/masters, I am using Raspberry PI. I just updated the Raspbian Wheezy and upgraded to the latest* version 0.10.0 of ibrdtn*. I just did (sudo apt-get ibrdtnd ibrdtn-tools). Unfortunately, I cannot see the */tmp/ibrdtn.stats* in the folder. The stats commands are also missing in the ibrdtn.conf file. I have all the required permissions for this folder. In my own program, *I read this file*to get the neighbor node's status (i.e. if they are available) and not I am unable to. This feature was available in the previous version of ibrdtn (which I am unable to retrieve now - I cannot see the earlier version in the Raspbian repository! In the version update: http://trac.ibr.cs.tu-bs.de/project-cm-2012-ibrdtn/wiki/changelog: It says: - Statistic Logger replaced by API management calls What does this mean? If there is an API, where is it and what is the easy way of calling *this API*? I am programming in python.. Also, I would like to know the difference between DTN2 and IBRDTN, which one is better to use and why/ why not? Thank you and I hope I can get some help! -- Best Regards, Sam

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The world's smallest DTN node
by Johannes Morgenroth 09 Sep '13

09 Sep '13

Hi Folks! By hacking a Linux-based Wi-Fi SD card, we got an amazing small ARM-based DTN router equipped with 16 GB flash and the full-featured IBR-DTN including the Bundle Security Protocol. Photo on Google+ https://plus.google.com/116901900295827463926/posts/1UnLPAFew9o Project sources and installation hints on github.com: https://github.com/ibrdtn/wifisd Kind regards, Johannes Morgenroth

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view log permission
by Dimitrios Giotas 09 Sep '13

09 Sep '13

Hello all, I am facing a weird problem. I want to access the log file of the ibr daemon, however when I try to peek I get the following error : Could not open the file /var/log/ibrdtn/ibrdtn.log You do not have the permissions necessary to open the file. I tried sudo gedit /var/log/ibrdtn/ibrdtn.log and managed to open it. Then I came across a rather small log which is inconsistent with what the daemon is printing out. Even after many events occurring the log doesn't refresh itself. It appears that the log gets refreshed only when I run the daemon with the default conf file which can not be modified and therefore the log is kinda useless. Does anyone know a way around that? Thank you and sorry for the wall of text. Regards, Dimitris Giotas

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source error
by Dimitrios Giotas 09 Sep '13

09 Sep '13

Hello, I am trying to install ibrdtn from source and after following all instructions when I try to run the daemon I get the following : dtnd: error while loading shared libraries: libibrdtn-0.10.so.1: cannot open shared object file: No such file or directory Any idea on what might be wrong? Thank you. Regards, Dimitris Giotas

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IBR-DTN Bundle size limit
by Guilherme Rolim 03 Sep '13

03 Sep '13

Hello, I'm using the IBR-DTN service in android to share a string file that is rather big. I noticed that it sends lots of bundles in sequence and not one big bundle with all the file. Can anyone help me on how to get all theses bundles that arrive and then merge the information? Furthermore, what are the size limitations of a IBR-DTN bundle? Is there anyway to make it bigger? Thanks in advance, Guilherme Rolim

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Get time and date in applications
by Dimitrios Giotas 02 Sep '13

02 Sep '13

Hello, I want to add a get time and date feature in dtnsend/recv and dtnoutbox/inbox. I think it might be useful since the 0.10.0 version doesn't display such messages in the daemon. Where can I find the application code and edit them? I have only found the executables so far. Regards, Dimitris Giotas

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tar error when using dtninbox
by Dimitrios Giotas 02 Sep '13

02 Sep '13

Hello, I am getting the following error when using the dtninbox command, as soon as the file is received : tar: Unexpected EOF in archive tar: Unexpected EOF in archive tar: Error is not recoverable: exiting now However, the file seems to be delivered without a problem. Is it a critical error or is it something that need not to be fixed? Regards, Dimitris Giotas

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IBR-DTN configuration file
by Dimitrios Giotas 28 Aug '13

28 Aug '13

Hello, I am facing a weird problem with the ibr daemon. When I run it with a modified configuration file, both the log and the daemon itself say the active configuration file is the modified one. However, in order for the daemon to ping himself I have to use the default eid and not the one I specified in my conf file. Therefore I assume that the daemon runs in its default configuration as a whole. Moreover, I get the following message in the daemon : ERROR ApiServer: cannot bind socket with address [::1]:4550 Lastly, the daemon cannot be pinged by its neighbor, an OpenWrt router, no matter the eid I use. Any help would be greatly appreciated. Regards Dimitris Giotas

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Bug report
by ssireskin＠gmail.com 26 Aug '13

26 Aug '13

Hello Johannes, I've encountered another bug in ibr-dtn. I've been sending multiple 150K-sized bundles from node 224 to node 232 via node 227 with dtnsend, when dtnd on the receiving side crashed. This behavior repeats after dtnd restart. I think the problem is somewhere in dtn client <-> dtn daemon socket communication. IBR-DTN version: 0.10.0 (build a5297f1) Please, see dtnd.log and dbg.txt in attachments. Best regards, Sergey Sireskin

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