My wireshark version is 1.6.7. I follow this link to configure
 
http://networkstatic.net/installing-wireshark-on-linux-for-openflow-packet-captures/


By default, the wireshark does not have openflow.so and packet-openflow.so 
plugins. So I think the official wireshark  version I used does not support the 
openflow. I will learn your build method and try it. 







At 2014-08-24 06:46:28, "Murphy McCauley" <murphy.mccau...@gmail.com> wrote:
Wireshark is adding official support for OpenFlow.  You may already have it.  
This might explain why you have both openflow.so and packet-openflow.so, which 
seems strange to me offhand.  The point being that you may not need to build an 
OpenFlow dissector yourself at all.


If you do want/need to build a dissector yourself, you probably don't want to 
use the one from the actual OpenFlow reference.  The last time I built the 
original dissector, it was from this updated version:
https://bitbucket.org/barnstorm/of-dissector


You might find more help on the openflow-discuss list.


-- Murphy


On Aug 23, 2014, at 6:01 AM, 张伟 <zhang...@126.com> wrote:


Hi all, 


According to Murphy guidance,  I want to install wireshark openflow plugin to 
inspect the packets. After installing and run wireshark, I met this error:
Couldn't load module /home/guest/.wireshark/plugins/openflow.so  
/home/guest/.wireshark/plugins/openflow.so undefined symbol:try_val_to_str


ls -l  /usr/lib/wireshark/libwireshark1/plugins/
-rwxr-xr-x 1 root root 142851 Jun 24 22:46 openflow.so
-rw-r--r-- 1 root root 188763 Aug 23 08:45 packet-openflow.so
In openflow packet_openflow.c file, I have added 
#define NO_STRINGS NULL
modify this function:
void proto_reg_handoff_openflow()
{
    openflow_handle = create_dissector_handle(dissect_openflow, proto_openflow);
    //dissector_add(TCP_PORT_FILTER, global_openflow_proto, openflow_handle);
    dissector_add_unit(TCP_PORT_FILTER, global_openflow_proto, openflow_handle);
}


Does anybody meet this problem and can give me some suggestions?




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