---
title: enablePacketFilter
framework: kernel
role: pseudoSymbol
path: kernel/ionetworkcontroller/1813940-enablepacketfilter
---

# enablePacketFilter

Enables one of the supported packet filters from the given filter group.

## Declaration

```occ
virtual IOReturn enablePacketFilter(
 const OSSymbol *group, 
 UInt32 aFilter, 
 UInt32 enabledFilters, 
 IOOptionBits options = 0) = 0; 
```

## Parameters

- `group`: The name of the filter group containing the filter to be enabled.
- `aFilter`: The filter to enable.
- `enabledFilters`: All filters currently enabled by the client.
- `options`: Optional flags for the enable request.

## Return Value

Return Value Returns kIOReturnSuccess on success, or an error otherwise.

## Overview

Overview A client will call this method to enable a supported filter from the filter group specified. If the client wishes to enable more than one filter, it must call this method multiple times to enable the desired set of filters. This method call is synchronized by the workloop's gate.

## See Also

### Miscellaneous

- [allocatePacket](kernel/ionetworkcontroller/1813917-allocatepacket.md)
- [attachDebuggerClient](kernel/ionetworkcontroller/1813919-attachdebuggerclient.md)
- [attachInterface](kernel/ionetworkcontroller/1813921-attachinterface.md)
- [configureInterface](kernel/ionetworkcontroller/1813923-configureinterface.md)
- [copyMediumDictionary](kernel/ionetworkcontroller/1813924-copymediumdictionary.md)
- [copyPacket](kernel/ionetworkcontroller/1813925-copypacket.md)
- [createInterface](kernel/ionetworkcontroller/1813926-createinterface.md)
- [createOutputQueue](kernel/ionetworkcontroller/1813927-createoutputqueue.md)
- [createWorkLoop](kernel/ionetworkcontroller/1813928-createworkloop.md)
- [detachDebuggerClient](kernel/ionetworkcontroller/1813929-detachdebuggerclient.md)
- [detachInterface](kernel/ionetworkcontroller/1813930-detachinterface.md)
- [disable](kernel/ionetworkcontroller/1813931-disable.md)
- [disable(IONetworkInterface *)](kernel/ionetworkcontroller/1813932-disable.md)
- [disable(IOService *)](kernel/ionetworkcontroller/1813933-disable.md)
- [disablePacketFilter](kernel/ionetworkcontroller/1813934-disablepacketfilter.md)
- [doDisable](kernel/ionetworkcontroller/1813935-dodisable.md)
- [doEnable](kernel/ionetworkcontroller/1813936-doenable.md)
- [enable](kernel/ionetworkcontroller/1813937-enable.md)
- [enable(IONetworkInterface *)](kernel/ionetworkcontroller/1813938-enable.md)
- [enable(IOService *)](kernel/ionetworkcontroller/1813939-enable.md)
- [executeCommand](kernel/ionetworkcontroller/1813941-executecommand.md)
- [free](kernel/ionetworkcontroller/1813942-free.md)
- [freePacket](kernel/ionetworkcontroller/1813943-freepacket.md)
- [getChecksumDemand](kernel/ionetworkcontroller/1813944-getchecksumdemand.md)
- [getChecksumSupport](kernel/ionetworkcontroller/1813945-getchecksumsupport.md)
- [getCommandClient](kernel/ionetworkcontroller/1813946-getcommandclient.md)
- [getCommandGate](kernel/ionetworkcontroller/1813947-getcommandgate.md)
- [getDebuggerLinkStatus](kernel/ionetworkcontroller/1813949-getdebuggerlinkstatus.md)
- [getFeatures](kernel/ionetworkcontroller/1813951-getfeatures.md)
- [getHardwareAddress](kernel/ionetworkcontroller/1813953-gethardwareaddress.md)
- [getMaxPacketSize](kernel/ionetworkcontroller/1813954-getmaxpacketsize.md)
- [getMediumDictionary](kernel/ionetworkcontroller/1813956-getmediumdictionary.md)
- [getMinPacketSize](kernel/ionetworkcontroller/1813957-getminpacketsize.md)
- [getOutputHandler](kernel/ionetworkcontroller/1813959-getoutputhandler.md)
- [getOutputQueue](kernel/ionetworkcontroller/1813960-getoutputqueue.md)
- [getPacketBufferConstraints](kernel/ionetworkcontroller/1813962-getpacketbufferconstraints.md)
- [getPacketFilters](kernel/ionetworkcontroller/1813964-getpacketfilters.md)
- [getSelectedMedium](kernel/ionetworkcontroller/1813966-getselectedmedium.md)
- [handleClose](kernel/ionetworkcontroller/1813967-handleclose.md)
- [handleIsOpen](kernel/ionetworkcontroller/1813968-handleisopen.md)
- [handleOpen](kernel/ionetworkcontroller/1813969-handleopen.md)
- [init](kernel/ionetworkcontroller/1813970-init.md)
- [message](kernel/ionetworkcontroller/1813971-message.md)
- [newModelString](kernel/ionetworkcontroller/1813972-newmodelstring.md)
- [newRevisionString](kernel/ionetworkcontroller/1813973-newrevisionstring.md)
- [newVendorString](kernel/ionetworkcontroller/1813974-newvendorstring.md)
- [outputPacket](kernel/ionetworkcontroller/1813975-outputpacket.md)
- [prepare](kernel/ionetworkcontroller/1813976-prepare.md)
- [publishMediumDictionary](kernel/ionetworkcontroller/1813977-publishmediumdictionary.md)
- [publishProperties](kernel/ionetworkcontroller/1813978-publishproperties.md)
- [receivePacket](kernel/ionetworkcontroller/1813979-receivepacket.md)
- [registerWithPolicyMaker](kernel/ionetworkcontroller/1813980-registerwithpolicymaker.md)
- [releaseDebuggerLock](kernel/ionetworkcontroller/1813981-releasedebuggerlock.md)
- [releaseFreePackets](kernel/ionetworkcontroller/1813982-releasefreepackets.md)
- [replaceOrCopyPacket](kernel/ionetworkcontroller/1813983-replaceorcopypacket.md)
- [replacePacket](kernel/ionetworkcontroller/1813984-replacepacket.md)
- [reserveDebuggerLock](kernel/ionetworkcontroller/1813985-reservedebuggerlock.md)
- [selectMedium](kernel/ionetworkcontroller/1813986-selectmedium.md)
- [selectMediumWithName](kernel/ionetworkcontroller/1813987-selectmediumwithname.md)
- [sendPacket](kernel/ionetworkcontroller/1813988-sendpacket.md)
- [setChecksumResult](kernel/ionetworkcontroller/1813989-setchecksumresult.md)
- [setDebuggerMode](kernel/ionetworkcontroller/1813990-setdebuggermode.md)
- [setHardwareAddress](kernel/ionetworkcontroller/1813991-sethardwareaddress.md)
- [setLinkStatus](kernel/ionetworkcontroller/1813992-setlinkstatus.md)
- [setMaxPacketSize](kernel/ionetworkcontroller/1813993-setmaxpacketsize.md)
- [setSelectedMedium](kernel/ionetworkcontroller/1813994-setselectedmedium.md)
- [start](kernel/ionetworkcontroller/1813995-start.md)
- [stop](kernel/ionetworkcontroller/1813996-stop.md)
- [systemWillShutdown](kernel/ionetworkcontroller/1813997-systemwillshutdown.md)