---
title: proto_media_input_v2
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/proto_media_input_v2
---

# proto_media_input_v2

## Declaration

```occ
typedef errno_t (*proto_media_input_v2)(ifnet_t ifp, protocol_family_t protocol, mbuf_t packet);
```

## Parameters

- `ifp`: The interface the packet was received on.
- `protocol_family`: The protocol of the packet received.
- `packet`: The packet being input.

## Return Value

Return Value If the result is zero, the caller will assume the packets were passed to the protocol. If the result is non-zero and not EJUSTRETURN, the caller will free the packets.

## Discussion

Discussion proto_media_input_v2 is called for all inbound packets for a specific protocol on a specific interface. This function is registered on an interface using ifnet_attach_protocolv2. proto_media_input_v2 differs from proto_media_input in that it will be called for a list of packets instead of once for each individual packet. The frame header can be retrieved using mbuf_pkthdr_header.