NET_BUFFER_DATA_OFFSET is a macro that NDIS drivers use to get the current offset from the beginning of the data space to the start of the used data space in a NET_BUFFER structure.
A pointer to a NET_BUFFER structure.
NET_BUFFER_DATA_OFFSET returns the offset, in bytes, from the beginning of the data space to the start of the used data space of the indicated NET_BUFFER structure. This value also represents the size of the unused data space (available backfill).
NET_BUFFER_DATA_OFFSET gets the return value from the DataOffset member of the NET_BUFFER structure.
|Supported in NDIS 6.0 and later.|