Differences between NDIS middle-layer driver development in win7 and Windows XP

Question:[Original] differences between NDIS intermediate layer driver development in win7 and Windows XP
Author: Tianhz
Time:2011-07-21,14: 58: 04
Link:Http://bbs.pediy.com/showthread.php? T = 137545

 

Network Data is composed of packets sent and received over the network. NDIS provides data structures to describe them. NDIS
6.0 provides the following data structures:
1) net_buffer
2) net_buffer list
3) net_buffer_list_context

 

In NDIS 6.0, net_buffer is the basic building block for closed network data. Each net_buffer has an
MDL chain. The buffer address mapped to these MDL is the data space specified by net_buffer. This data ing
is the same as the ing in NDIS 5.x and ndis_packet used in earlier versions. NDIS provides functions to manage
MDL chains.

 Multiple net_buffer can be appended to (can be serialized) A net_buffer_lis. These net_buffer
Is organized into a single-chain table ending with null. The driver or NDIS creates only one net_buffer_list, which should be modified.
Its linked list inserts or deletes some net_buffer structures for it.
The information contained in the net_buffer_list Structure describes all net_buffer knots that are serialized to a linked list.
Structure. If net_buffer_list requires context information, you can allocate additional space to store
The net_buffer_list_context structure. NDIS provides functions to allocate and access net_buffer_list_context
.
Multiple net_buffer_list structures can be concatenated into a net_buffer_list linked list. They can be organized into one
One-way linked list ending with null. The driver can directly insert or delete the linked list.
The net_buffer structure used in NDIS 6.0 is similar to the ndis_packet structure used before NDIS 5.x.
A network packet is encapsulated in a net_buffer structure.

 

 

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