Thanks for your help. I got the data I need by extracting am->pin.up.base.packet with flow_extract()
Vào Th 6, 11 thg 10, 2019 vào lúc 14:38 Tuyen Dinh <tuyen.di...@gmail.com> đã viết: > Hi, > I'm trying to preprocess packets that don't match flowtable before they > are sent to the controller via PacketIn message.I found in > ofproto/connmgr.c, function connmgr_send_async_msg() is given a struct > ofproto_async_msg *am , encode and send a PacketIn message to the > controller. I tried to read the source/dest ip and source/dest port of the > captured packet by access am>pin.up.base.flow_metadata.flow but all fields > are 0 except in_port. Is it the correct way to access the metadata of the > captured packet? If I'm misunderstanding, how can I get the metadata of the > captured packet in user space before it's sent to the controller? >
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