// nblaccessors.h

#define NET_BUFFER_LIST_CONTEXT_DATA_START(_NBL) ((PUCHAR)(((_NBL)->Context)+1)+(_NBL)->Context->Offset)
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Windows Driver Kit DDI reference (nf-nblaccessors-net_buffer_list_context_data_start)

Description

NET_BUFFER_LIST_CONTEXT_DATA_START is a macro that NDIS drivers use to get a pointer to the NET_BUFFER_LIST_CONTEXT context space that is associated with a NET_BUFFER_LIST structure.

Syntax

#define NET_BUFFER_LIST_CONTEXT_DATA_START(_NBL) ((PUCHAR)(((_NBL)->Context)+1)+(_NBL)->Context->Offset)

Parameters

`_NBL`

A pointer to a NET_BUFFER_LIST structure.

Return value

NET_BUFFER_LIST_CONTEXT_DATA_START returns a pointer to the NET_BUFFER_LIST_CONTEXT context space that is associated with the indicated NET_BUFFER_LIST structure.

Remarks

NET_BUFFER_LIST_CONTEXT_DATA_START returns a pointer to the start of the used context space in the ContextData member of the NET_BUFFER_LIST_CONTEXT structure.

NET_BUFFER_LIST_CONTEXT_DATA_START - NtDoc