NetworkingDriverKit

Overview

Use NetworkingDriverKit to develop drivers for USB Ethernet adapters. This framework extends the API of DriverKit, providing you with a service class for managing your networking driver. It also provides support for managing the memory you use to store packets, transferring those packets between the device and networking stack, and inspecting the Ethernet link status.

Note that Ethernet is the only networking interface currently supported by NetworkingDriverKit.

Develop your driver with DriverKit and NetworkingDriverKit. Use USBDriverKit to manage the connection to your hardware device. Include your driver inside your macOS app and use the System Extensions framework to install and upgrade the driver on the user’s Mac.

Topics

Essentials

• com.apple.developer.driverkit.family.networking

Samples

• Connecting a network driver
• DriverKit sample code

Network Service

• IOUserNetworkEthernet

Packet Management

• IOUserNetworkPacketBufferPool
• IOUserNetworkPacket
• IOUserNetworkPacketDirection

Packet Queues

• IOUserNetworkRxSubmissionQueue
• IOUserNetworkRxCompletionQueue
• IOUserNetworkTxSubmissionQueue
• IOUserNetworkTxCompletionQueue
• IOUserNetworkPacketQueue

Reference

• NetworkingDriverKit Structures
• NetworkingDriverKit Data Types
• NetworkingDriverKit Constants

Classes

• IOUserNetworkPacketPoller
• IOUserNetworkPacketQueueCompat
• IOUserNetworkRxCompletionQueueCompat
• IOUserNetworkRxSubmissionQueueCompat
• IOUserNetworkTxCompletionQueueCompat
• IOUserNetworkTxSubmissionQueueCompat

Structures

• IOUserNetworkEthernet_IVars
• IOUserNetworkPacketQueueCompat_IVars
• IOUserNetworkRxCompletionQueueCompat_IVars
• IOUserNetworkRxSubmissionQueueCompat_IVars
• IOUserNetworkTxCompletionQueueCompat_IVars
• IOUserNetworkTxSubmissionQueueCompat_IVars

Macros

• NDK_25

Enumeration Cases

• kIOUserNetworkHWAssistLRONumSeg

Type Aliases

• DequeueActionCompat
• EnqueueActionCompat
• IOUserNetworkPacketQueueCompatId
• QueryFreeSpaceActionCompat