This page was last edited on 3 December , at Therefore, driver vendors cannot assume that the interface that they send traffic to is implemented by the last driver in the chain. Sign up or log in Sign up using Google. Post as a guest Name. This design enables adding several chained intermediate drivers between the miniport and protocol drivers.
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This means that traffic coming into the miniport may be received in parallel by several protocol drivers.
windows – Listing active NDIS filters – Stack Overflow
This article needs additional citations for verification. The device class-specific driver models are typically structured as a port driver written by Microsoft paired with a miniport driver written by an independent hardware vendor. Active Accessibility UI Automation.
When viewing the resulting ETL file in Microsoft Message Analyzer, I’m provided with data points containing two items in particular that I’m looking for: Please help improve this article by adding citations to reliable sources.
The miniport driver and protocol filte actually communicate with the corresponding miniport and protocol interfaces that reside in the intermediate driver.
NDIS Filter Drivers
medn The “PassThru” sample is a good starting point for intermediate drivers as it implements all the necessary details required in this driver type, but just passes the traffic through to the next driver in the chain. Is anyone aware of a way to correlate the lowerIfIndex to a filter name?
Sign up using Facebook. Email Required, but never shown. Therefore, the NDIS acts as the interface between the media access control MAC sublayer, which is the lower sublayer of the data link layer, and the network layer layer 3. Because implementations cannot assume that other drivers received the same buffers, one must treat the incoming buffers as read only and a driver that changes the packet content must allocate its own buffers.
NDIS Filter Driver Reference (Windows Drivers)
This design enables adding several chained intermediate drivers between the miniport and protocol drivers. In practice, intermediate drivers implement both miniport and protocol interfaces.
For example, Winpcap adds a second protocol driver on the selected miniport in order to capture incoming packets. Microsoft APIs and frameworks.
A single miniport may be associated with one or more protocols. Furthermore, it is possible to simulate several virtual NICs by implementing virtual miniport drivers that send and receive mdsn from a single physical NIC. Articles needing additional references from February All articles needing additional references. Sign up or log in Sign up using Google.