Error when loading engine library. #113
Replies: 7 comments 7 replies
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@MalekChebli Can you please share the steps you followed to build the engine + libpcap itself. |
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Thank you for your quick response. |
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@MalekChebli nfstream is not supported on Python 2.7. |
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First I built nfstream then I compiled libpcap with dpdk |
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This is an issue. Then the setup script will build the engine using compiled static dependencies. Line 40 in 856330a Hope this helps. |
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Thank you for your help, it worked but i have another problem when i try to capture the traffic it shows me the following error : |
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Please share the script you are running.
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I named my script capture.py and my script is at the same level as test.py but it showed me the previous error ; |
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Can you check that you have an engine.so that was generated under engine repo? |
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This is a scrrenshot that shows all the files under engine. |
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do the following cd nfstream/engine/
rm engine_cc.so
cd ..
cd ..
ls /usr/local/lib/
python3 setup.py bdist_wheel
ls nfstream/engine/ |
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the output of Also I'm using this script to capture the traffic note: ens192 is already binded |
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@MalekChebli I think the issue is that the libpcap you generated was not linked againt static dpdk. Do you confirm? |
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Yeah I confirm, I found out that when I run the following command while comipling nfstream |
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Hello,
I'm a student currently working on nDPI project and I'm trying to capture packets through live interface dpdk.
So as a first step I compiled libpcapwith dpdk then I built nfstream from source and I'm trying to capture the real time trafic but when I run my script it shows me this error .
` Traceback (most recent call last):
File "/home/pfedpdk/nfstream/nfstream/streamer.py", line 450, in iter
raise ValueError(child_error)
ValueError: Error when loading engine library. This means that you are probably building nfst ream from source and something went wrong during the engine compilation step. Please see: htt ps://www.nfstream.org/docs/#building-nfstream-from-sourcesfor more information
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "capture.py", line 9, in
for flow in my_streamer:
File "/home/pfedpdk/nfstream/nfstream/streamer.py", line 452, in iter
raise ValueError(observer_error)
ValueError: Error when loading engine library. This means that you are probably building nfst ream from source and something went wrong during the engine compilation step. Please see: htt ps://www.nfstream.org/docs/#building-nfstream-from-sourcesfor more information`
can you please help me to solve it ?
Also can nfstream capture network trafic from a dpdk binded interface ?
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