About libipq

About libipq

[Yan Li]

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Hi all,

I wrote a small program which copy the input packets from the kernel to the userspace using libipq. And the packets are stored in a buffer in userspace which is acturally an array, say buf.  

Using: 
ipq_packet_msg_t * m = ipq_get_packet(buf);

I can access some parameters of the packets like the packet ID, packet length which are defined in the struct ipq_packet_msg_t. For example, m->packet_id points to the packet ID. But how can I get other information of the packets, like the source and destination address, the protocol, etc. Is there any function or should I read different unit of the array, buf, to do that? 

I am only a beginner. Many thanks for your kind reply.

Yan

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About libipq

[Yan Li]

Hi all,

I wrote a small program which copy the input packets from the kernel to the 
userspace using libipq. And the packets are stored in a buffer in userspace 
which is actually an array, say buf.

Using:
ipq_packet_msg_t * m = ipq_get_packet(buf);

I can access some parameters of the packets like the packet ID, packet 
length which are defined in the struct ipq_packet_msg_t. For example, 
m->packet_id points to the packet ID. But how can I get other information of 
the packets, like the source and destination address, the protocol, etc. Is 
there any function or should I read different unit of the array, buf, to do 
that?

I am only a beginner. Many thanks for your kind reply.

Yan





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