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

IBR-DTN on Raspberry PI
by Björn Stoffers 02 Dec '19

02 Dec '19

Hallo, please note, I am looking for a solution to build a out-of-the-box dtn with raspberry pies. The Goal is a runnig system with three notes (two pie stations and one mobile pie) with a step by step tutorial and ready to use downloads for the sd-cards including mimimum an e-mail-communication. An easy-to-use-out-of-the-box-set would be a good integration in mesh-networks like freifunk or for underdeveloped regions without constant internet-connection. If you have any solutions, ideas or sources please let me know. I take all informations about dtn. running soultions or projects, what i can get. Björn Stoffers

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Re: [ibr-dtn] PLEASE HELP> ERROR ApiServer: Cannot bind to socket with address [::1]:4550
by Björn Gernert 27 Nov '19

27 Nov '19

Hello Mehrdad, please reply to the list, so that the discussion can be found by others also. Depending on the type of installation it may not be enough to kill the service. Systemd recognizes it and restarts the service on its own. Please make sure that dtnd is not running after all (ps aux | grep dtnd). We have successfully run IBR-DTN in several different VM types in the past. Passing through a physical network interface was never a problem. - Björn On 25.11.19 12:14, asadii.mehrdad(a)gmail.com wrote: > Hello, > Yes I have installed it from repo, > I also tried to kill the deamon and rerun deamon but still the same error happens. > Do you have any previous experience if running linux on vm and using external wifi adapters cause this type of problems? I will try the options that you provided today. > > Sent from my iPhone > >> On Nov 25, 2019, at 13:17, Björn Gernert via Ibr-dtn <ibr-dtn(a)ibr.cs.tu-bs.de> wrote: >> >> Hello Mehrdad, >> >> how did you install IBR-DTN? >> If IBR-DTN was installed from the repositories, the daemon will start >> automatically. In this case a dtnd is already running on port 4550, so a >> second, manually started, dtnd cannot bind to it. >> You could check this by trying to connect to this port via telnet (or by >> looking at the output of "netstat -tulpen"). >> >> Otherwise you could enable the debug output of dtnd (start with -d 90) >> to get more information. >> >> - Björn >> >>> On 23.11.19 18:41, Mehrdad Asadi via Ibr-dtn wrote: >>> Hello Dears, >>> I am trying to use IBR-DTN in my thesis and I have following problem: >>> >>> While trying to use deamon. >>> The error I get is: >>> ERROR ApiServer: Cannot bind to socket with address [::1]:4550 >>> >>> I tried: >>> 1-disabled ipv6 then (ipv4 port listener also gone) >>> 2-change dtndconf bind interface to : 127.0.0.1 >>> 3- almost checked all mailing list and FAQ of IBR-DTN. >>> >>> still nothing... please help me >>> >> >> -- >> !! This message is brought to you via the `ibr-dtn' mailing list. >> !! Please do not reply to this message to unsubscribe. To unsubscribe or adjust >> !! your settings, send a mail message to <ibr-dtn-request(a)ibr.cs.tu-bs.de> >> !! or look at https://mail.ibr.cs.tu-bs.de/listinfo/ibr-dtn.

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PLEASE HELP> ERROR ApiServer: Cannot bind to socket with address [::1]:4550
by Mehrdad Asadi 25 Nov '19

25 Nov '19

Hello Dears, I am trying to use IBR-DTN in my thesis and I have following problem: While trying to use deamon. The error I get is: ERROR ApiServer: Cannot bind to socket with address [::1]:4550 I tried: 1-disabled ipv6 then (ipv4 port listener also gone) 2-change dtndconf bind interface to : 127.0.0.1 3- almost checked all mailing list and FAQ of IBR-DTN. still nothing... please help me

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Enable IBRDTN security
by Madhuri Madhav 26 Sep '18

26 Sep '18

*hi,* *I am currently working with security in IBRDTN. I am using CORE (common open research emulator) platform, on which there two connected with a wired interface, nodes which run ibrdtn version 1.0.1 with the command dtnd -d 80 -c <path to ibrdtn.conf>. Both the nodes run same configuration file which is attached herewith.* 1. *Both the nodes are able to dtnping each other. * 2. *I use dtnsend --encrypt command with the specified file to the other node.* 3. *On wireshark capture of the whole setup there are no encrypted packets being exchanged, plain texts are observed in exchange between the nodes. * 4. *deamon debug logs have been listed here.* 5. *Additionally i also generated keys for both the nodes in etc/ibrdtn/bpsec folder the public/private key for both the nodes along with the default-bab-key.mac and; local.crt and local.key in /etc/ibrdtn/tls/ * *Deamon log on the transmitting node dtn://n1/* *Wed Sep 26 15:41:20 2018 DEBUG.20 BinaryStreamClient: new client connected, handle: zxaTtKOGtnfUcKii; eid: dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.25 Registration: search for more bundlesWed Sep 26 15:41:20 2018 DEBUG.70 StreamBuffer: MSG_DATA_SEGMENT received, size: 175Wed Sep 26 15:41:20 2018 DEBUG.30 SimpleBundleStorage: element successfully stored: 8299f8af4801001964746e3a2f2f6e312f7a786154744b4f47746e6655634b6969Wed Sep 26 15:41:20 2018 DEBUG.2 BundleStorage: add bundle to index: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.5 NeighborRoutingExtension: processing task ProcessBundleTask: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.20 NeighborDatabase: acquire transfer of [591271880.1] dtn://n1/zxaTtKOGtnfUcKii to dtn://n2 (1 bundles in transit)Wed Sep 26 15:41:20 2018 DEBUG.2 ConnectionManager: next hop: Node: dtn://n2 [ 10#connected#TCP#ip=10.0.0.11;port=4556;#expire=0; 0#discovered#TCP#ip=10.0.0.11;port=4556;#expire=591271890; 0#discovered#TCP#ip=2001::11;port=4556;#expire=591271890; ]Wed Sep 26 15:41:20 2018 DEBUG.15 TCPConvergenceLayer: queued bundle to an existing tcp connection (dtn://n2)Wed Sep 26 15:41:20 2018 DEBUG.20 RoutingExtension: bundle [591271880.1] dtn://n1/zxaTtKOGtnfUcKii queued by neighbor for dtn://n2 via protocol TCPWed Sep 26 15:41:20 2018 DEBUG.5 StaticRoutingExtension: processing task ProcessBundleTask: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.50 StaticRoutingExtension: search static route for [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.70 StreamBuffer: MSG_ACK_SEGMENT received, size: 197Wed Sep 26 15:41:20 2018 DEBUG.60 StreamBuffer: 1 elements to ACKWed Sep 26 15:41:20 2018 DEBUG.20 StreamConnection: bundle has been forwardedWed Sep 26 15:41:20 2018 DEBUG.20 NeighborDatabase: release transfer of [591271880.1] dtn://n1/zxaTtKOGtnfUcKii to dtn://n2 (0 bundles in transit)* *Deamon log on the receiving node dtn://n2/* *Wed Sep 26 15:41:20 2018 DEBUG.70 StreamBuffer: MSG_DATA_SEGMENT received, size: 197Wed Sep 26 15:41:20 2018 DEBUG.2 BundleStorage: add bundle to index: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.30 SimpleBundleStorage: element successfully stored: 8299f8af4801001964746e3a2f2f6e312f7a786154744b4f47746e6655634b6969Wed Sep 26 15:41:20 2018 DEBUG.25 Registration: search for more bundlesWed Sep 26 15:41:20 2018 DEBUG.30 Registration: search bundle in the list of delivered bundles: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.10 Registration: [RegistrationQueue] add bundle to list of delivered bundles: [591271880.1] dtn://n1/zxaTtKOGtnfUcKiiWed Sep 26 15:41:20 2018 DEBUG.70 StreamBuffer: MSG_SHUTDOWN receivedWed Sep 26 15:41:20 2018 DEBUG.10 StreamBuffer: StreamShutdownException in underflow()Wed Sep 26 15:41:20 2018 DEBUG.10 BinaryStreamClient: Bundle version differ from ours.Wed Sep 26 15:41:20 2018 DEBUG.40 BinaryStreamClient: BinaryStreamClient::eventConnectionDown()Wed Sep 26 15:41:20 2018 DEBUG.60 BinaryStreamClient: BinaryStreamClient downWed Sep 26 15:41:20 2018 DEBUG.80 socketstream: overflow() nothing to sentWed Sep 26 15:41:20 2018 DEBUG.25 Registration: search for more bundlesWed Sep 26 15:41:20 2018 DEBUG.10 BinaryStreamClient: unexpected API error! Conditional has been unblocked.Wed Sep 26 15:41:20 2018 DEBUG.80 socketstream: overflow() nothing to sentWed Sep 26 15:41:20 2018 DEBUG.60 ClientHandler: ApiConnection downWed Sep 26 15:41:20 2018 DEBUG.5 ApiServer: api connection downWed Sep 26 15:41:20 2018 DEBUG.5 ApiServer: release registration FyznlhvFrdWGTFFv* *Please guide me on how to enable authenitication, encryption and sign?* *Are there any additional setting i have to do?* *Kindly help me with the same.* *Best regards * *Madhuri*

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Fwd: WiFiP2P module of IBR-DTN
by Carlo Pettinato S233072 25 Sep '18

25 Sep '18

Hello everyone, I'm Carlo Pettinato, an italian student working on IBR-DTN. My goal is to connect two RaspberryPi 3 through a WiFi P2P connection. For this reason, I downloaded the WifiP2P library from the following link: https://github.com/ibrdtn/libwifip2p/. Then I downloaded hostapd from git://w1.fi/srv/git/hostap.git and I added it to 'hostap' directory of libwifip2p. Then I installed the library. So was able to run IBR-DTN daemon with WifiP2PManager module. The neighbor discovery seems to work well. The problem occurs when a Raspberry try to connect to the other one. In fact, it seems that the connection request fails. I think it could be an authentican issue, but i'm not able to fix the problem. Does anyone have any ideas? Thank you in advance. Best regards, Carlo

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IBRDTN static node configuration and security
by Madhuri Madhav 12 Sep '18

12 Sep '18

Hi, I have been working on IBRDTN security. Here are some glitches I have encountered. 1. I have enabled security parameters in configuration file also configured nodes as static. I am unable to capture any encrypted packets or authentication or signature in any of the packets in the wireshark capture of the traffic. 1. The other problem is that, I am getting errors as quoted in text below :- Wed Sep 12 12:46:07 2018 DEBUG.10 StreamBuffer: StreamErrorException in > underflow(): stream went bad > Wed Sep 12 12:46:07 2018 DEBUG.10 BinaryStreamClient: Bundle version > differ from ours. > Wed Sep 12 12:46:07 2018 DEBUG.40 BinaryStreamClient: > BinaryStreamClient::eventConnectionDown() > Wed Sep 12 12:46:07 2018 DEBUG.60 BinaryStreamClient: BinaryStreamClient > down > There are no ping packets being exchanged between the two static nodes. Please help me with the same. Thank you *With Regards,* *Madhuri.M.B*

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IBRDTN Java Library - Catch incoming bundle
by Carlo Pettinato S233072 17 May '18

17 May '18

Hi, I'm Carlo Pettinato, a Computer Science Engineering italian student. Actually I'm working with IBR-DTN software, in particular with the IBR-DTN Java Library (https://github.com/ibrdtn/ibrdtn-java-library). I'm writing this message for you because it's not clear to me how to get incoming bundles from the ibr-dtn daemon and process them using the library. Thank you in advance if you can help me. Best regards, Carlo Pettinato

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Starting on boot
by Ian Rafael Ordonez 30 Apr '18

30 Apr '18

Good day! How do we run IBR-DTN on boot in Linux?

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Installation problem
by Dominic Solpico 19 Apr '18

19 Apr '18

Hello. I'm getting the following error messages when executing sudo apt-get update: W: GPG error: http://download.opensuse.org/repositories/home:/j_morgenroth/Debian_8.0 ./ Release: The following signatures were invalid: 144E39A7BA9845106A7FBFBA8984BBB839EBCBCA W: The repository ' http://download.opensuse.org/repositories/home:/j_morgenroth/Debian_8.0 ./ Release' is not signed. N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use. N: See apt-secure(8) manpage for repository creation and user configuration details. I am using Raspberry Pi 3 with Raspbian Stretch (9.4) and I added the PGP key for Debian_8.0 distribution. I appreciate any assistance. Thank you. Dominic B. Solpico Research Engineer, Ateneo Innovation Center

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Problem running
by David Oliveira 16 Apr '18

16 Apr '18

Hello, my name is David Im having problems when trying to run the dtnd program on my computer. It used to work 3 months ago, but now it doesnt works. It gaves the following output on my computer(wlp4s0 is my wireless interface): sudo dtnd -i wlp4s0 -c /home/script/Documentos/git/dtnServidor/IBRDTN/ibrdtn-custom.conf Sun Apr 15 21:48:38 2018 INFO NativeDaemon: IBR-DTN daemon 1.0.1 (build 294b543) Sun Apr 15 21:48:38 2018 INFO Configuration: Configuration: /home/script/Documentos/git/dtnServidor/IBRDTN/ibrdtn-custom.conf Sun Apr 15 21:48:38 2018 INFO NativeDaemon: use logfile for output: /var/log/ibrdtn/ibrdtn.log Sun Apr 15 21:48:38 2018 INFO NativeDaemon: Parallel event processing enabled using 2 processes. Sun Apr 15 21:48:38 2018 INFO BundleCore: Local node name: dtn://script.dtn Sun Apr 15 21:48:38 2018 INFO BundleCore: Forwarding of bundles enabled. Sun Apr 15 21:48:38 2018 INFO SecurityKeyManager: initialized; path: /etc/ibrdtn/bpsec Sun Apr 15 21:48:38 2018 INFO NativeDaemon: using simple bundle storage in /var/spool/ibrdtn/bundles Sun Apr 15 21:48:38 2018 INFO SimpleBundleStorage: 1 Bundles restored. Sun Apr 15 21:48:38 2018 INFO NativeDaemon: API initialized using tcp socket: loopback:4550 Sun Apr 15 21:48:38 2018 INFO NativeDaemon: TCP ConvergenceLayer added on wlp4s0:4556 Sun Apr 15 21:48:38 2018 INFO DiscoveryAgent: listen to [224.0.0.142]:4551 Sun Apr 15 21:48:38 2018 INFO DiscoveryAgent: listen to [ff02::142]:4551 Sun Apr 15 21:48:38 2018 INFO DiscoveryAgent: add interface wlp4s0 Sun Apr 15 21:48:43 2018 ERROR TCPConvergenceLayer: bind failed (failed to getaddrinfo with address: [fd11:2233:4455:1:f48d:2c3:b5d5:9607]:4556 (global)) Sun Apr 15 21:48:43 2018 ERROR IPNDAgent: Join failed on wlp4s0 ([2804:14d:1494:8532:b569:2e86:3664:8ca5]:4551 (global), family: 10); failed to getaddrinfo with address: [2804:14d:1494:8532:b569:2e86:3664:8ca5]:4551 (global) Sun Apr 15 21:48:44 2018 ERROR IPNDAgent: Join failed on wlp4s0 ([2804:14d:1494:8532:f48d:2c3:b5d5:9607]:4551 (global), family: 10); failed to getaddrinfo with address: [2804:14d:1494:8532:f48d:2c3:b5d5:9607]:4551 (global) Sun Apr 15 21:48:44 2018 ERROR IPNDAgent: Join failed on wlp4s0 ([fd11:2233:4455:1:e0bc:ac71:648e:651e]:4551 (global), family: 10); failed to getaddrinfo with address: [fd11:2233:4455:1:e0bc:ac71:648e:651e]:4551 (global) Sun Apr 15 21:48:50 2018 ERROR IPNDAgent: Join failed on wlp4s0 ([fd11:2233:4455:1:f48d:2c3:b5d5:9607]:4551 (global), family: 10); failed to getaddrinfo with address: [fd11:2233:4455:1:f48d:2c3:b5d5:9607]:4551 (global) Sun Apr 15 21:48:50 2018 ERROR IPNDAgent: Join failed on wlp4s0 ([fe80::90a3:98d8:6edd:93dd%wlp4s0]:4551 (link), family: 10); failed to getaddrinfo with address: [fe80::90a3:98d8:6edd:93dd%wlp4s0]:4551 (link) Sun Apr 15 21:48:50 2018 INFO NativeDaemon: Using epidemic routing extensions Sun Apr 15 21:48:50 2018 INFO EpidemicRoutingExtension: Initializing epidemic routing module I guess the problems are related with multiples ipv6 addresses on the interface wlp4s0 (3 months ago I did not had multiple ipv6 addresses). My ifconfig output for the wlp4s0 interface: script@script:~$ ifconfig wlp4s0 wlp4s0 Link encap:Ethernet Endereço de HW 68:14:01:a7:fd:5d inet end.: 192.168.0.16 Bcast:192.168.0.255 Masc:255.255.255.0 endereço inet6: 2804:14d:1494:8532:b569:2e86:3664:8ca5/64 Escopo:Global endereço inet6: fd11:2233:4455:1:f48d:2c3:b5d5:9607/64 Escopo:Global endereço inet6: fd11:2233:4455:1:e0bc:ac71:648e:651e/64 Escopo:Global endereço inet6: fe80::90a3:98d8:6edd:93dd/64 Escopo:Link endereço inet6: 2804:14d:1494:8532:f48d:2c3:b5d5:9607/64 Escopo:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1 pacotes RX:20694 erros:0 descartados:0 excesso:0 quadro:0 Pacotes TX:17267 erros:0 descartados:0 excesso:0 portadora:0 colisões:0 txqueuelen:1000 RX bytes:13073019 (13.0 MB) TX bytes:2696130 (2.6 MB) ------------------------------------------------------------------------------------- I have a raspberry pi zero W also running dtnd, but I dont have problems here. From the raspberry pi, I get the following output: pi@raspberrypi:~ sudo dtnd -i wlan0 -c /home/pi/Documents/ibrdtn-conf/novoconfpizero.conf Sun Apr 15 21:58:09 2018 INFO NativeDaemon: IBR-DTN daemon 1.0.1 (build e7cfb5fc) Sun Apr 15 21:58:09 2018 INFO Configuration: Configuration: /home/pi/Documents/ibrdtn-conf/novoconfpizero.conf Sun Apr 15 21:58:09 2018 INFO NativeDaemon: use logfile for output: /var/log/ibrdtn/ibrdtn.log Sun Apr 15 21:58:09 2018 INFO BundleCore: Local node name: dtn://pizero.dtn Sun Apr 15 21:58:09 2018 INFO BundleCore: Forwarding of bundles enabled. Sun Apr 15 21:58:09 2018 INFO BundleCore: Non-singleton bundles are accepted. Sun Apr 15 21:58:09 2018 INFO NativeDaemon: using simple bundle storage in /var/spool/ibrdtn/bundles Sun Apr 15 21:58:09 2018 INFO SimpleBundleStorage: 1 Bundles restored. Sun Apr 15 21:58:09 2018 INFO NativeDaemon: API initialized using tcp socket: <loopback>:4550 Sun Apr 15 21:58:09 2018 INFO NativeDaemon: TCP ConvergenceLayer added on wlan0:4556 Sun Apr 15 21:58:09 2018 INFO IPNDAgent: listen to [224.0.0.142]:4551 Sun Apr 15 21:58:09 2018 INFO IPNDAgent: listen to [ff02::142]:4551 Sun Apr 15 21:58:09 2018 INFO IPNDAgent: advertise on interface wlan0 Sun Apr 15 21:58:09 2018 INFO NativeDaemon: Using epidemic routing extensions Sun Apr 15 21:58:09 2018 INFO EpidemicRoutingExtension: Initializing epidemic routing module *Sun Apr 15 21:59:11 2018 WARNING TCPConnection: connection to dtn://script.dtn failed* *Sun Apr 15 22:03:31 2018 WARNING TCPConnection: connection to dtn://script.dtn failed* *Sun Apr 15 22:05:46 2018 WARNING TCPConnection: connection to dtn://script.dtn failed* *Sun Apr 15 22:06:48 2018 WARNING TCPConnection: connection to dtn://script.dtn failed* On the raspberry pi, I connected to the API and used the neighbor list command, got the following output (dtn://script.dtn is my computer): neighbor list 200 NEIGHBOR LIST dtn://script.dtn I tried the same approach on my computer, got the following output: neighbor list 200 NEIGHBOR LIST As you can see, it was expected to my raspberry (dtn://pizero.dtn) appears on the list, but it did not. May you help me?

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