/* * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * IOEthernetController.cpp * * Abstract Ethernet controller superclass. * * HISTORY * * Dec 3, 1998 jliu - C++ conversion. */ #include #include #include extern "C" { #include // mbuf limits defined here. #include } //--------------------------------------------------------------------------- #define super IONetworkController OSDefineMetaClassAndAbstractStructors( IOEthernetController, IONetworkController) OSMetaClassDefineReservedUnused( IOEthernetController, 2); OSMetaClassDefineReservedUnused( IOEthernetController, 3); OSMetaClassDefineReservedUnused( IOEthernetController, 4); OSMetaClassDefineReservedUnused( IOEthernetController, 5); OSMetaClassDefineReservedUnused( IOEthernetController, 6); OSMetaClassDefineReservedUnused( IOEthernetController, 7); OSMetaClassDefineReservedUnused( IOEthernetController, 8); OSMetaClassDefineReservedUnused( IOEthernetController, 9); OSMetaClassDefineReservedUnused( IOEthernetController, 10); OSMetaClassDefineReservedUnused( IOEthernetController, 11); OSMetaClassDefineReservedUnused( IOEthernetController, 12); OSMetaClassDefineReservedUnused( IOEthernetController, 13); OSMetaClassDefineReservedUnused( IOEthernetController, 14); OSMetaClassDefineReservedUnused( IOEthernetController, 15); OSMetaClassDefineReservedUnused( IOEthernetController, 16); OSMetaClassDefineReservedUnused( IOEthernetController, 17); OSMetaClassDefineReservedUnused( IOEthernetController, 18); OSMetaClassDefineReservedUnused( IOEthernetController, 19); OSMetaClassDefineReservedUnused( IOEthernetController, 20); OSMetaClassDefineReservedUnused( IOEthernetController, 21); OSMetaClassDefineReservedUnused( IOEthernetController, 22); OSMetaClassDefineReservedUnused( IOEthernetController, 23); OSMetaClassDefineReservedUnused( IOEthernetController, 24); OSMetaClassDefineReservedUnused( IOEthernetController, 25); OSMetaClassDefineReservedUnused( IOEthernetController, 26); OSMetaClassDefineReservedUnused( IOEthernetController, 27); OSMetaClassDefineReservedUnused( IOEthernetController, 28); OSMetaClassDefineReservedUnused( IOEthernetController, 29); OSMetaClassDefineReservedUnused( IOEthernetController, 30); OSMetaClassDefineReservedUnused( IOEthernetController, 31); //------------------------------------------------------------------------- // Macros #ifdef DEBUG #define DLOG(fmt, args...) IOLog(fmt, ## args) #else #define DLOG(fmt, args...) #endif //--------------------------------------------------------------------------- // IOEthernetController class initializer. void IOEthernetController::initialize() { } //--------------------------------------------------------------------------- // Initialize an IOEthernetController instance. bool IOEthernetController::init(OSDictionary * properties) { if (!super::init(properties)) { DLOG("IOEthernetController: super::init() failed\n"); return false; } return true; } //--------------------------------------------------------------------------- // Free the IOEthernetController instance. void IOEthernetController::free() { // Any allocated resources should be released here. super::free(); } //--------------------------------------------------------------------------- // Publish Ethernet controller capabilites and properties. bool IOEthernetController::publishProperties() { bool ret = false; IOEthernetAddress addr; OSDictionary * dict; do { // Let the superclass publish properties first. if (super::publishProperties() == false) break; // Publish the controller's Ethernet address. if ( (getHardwareAddress(&addr) != kIOReturnSuccess) || (setProperty(kIOMACAddress, (void *) &addr, kIOEthernetAddressSize) == false) ) { break; } // Publish Ethernet defined packet filters. dict = OSDynamicCast(OSDictionary, getProperty(kIOPacketFilters)); if ( dict ) { UInt32 filters; OSNumber * num; OSDictionary *newdict; if ( getPacketFilters(gIOEthernetWakeOnLANFilterGroup, &filters) != kIOReturnSuccess ) { break; } num = OSNumber::withNumber(filters, sizeof(filters) * 8); if (num == 0) break; //to avoid race condition with external threads we'll modify a copy of dictionary newdict = OSDictionary::withDictionary(dict); //copy the dictionary if(newdict) { ret = newdict->setObject(gIOEthernetWakeOnLANFilterGroup, num); //and add the WOL group to it setProperty(kIOPacketFilters, newdict); //then replace the property with the new dictionary newdict->release(); } num->release(); } } while (false); return ret; } //--------------------------------------------------------------------------- // Set or change the station address used by the Ethernet controller. IOReturn IOEthernetController::setHardwareAddress(const IOEthernetAddress * addr) { return kIOReturnUnsupported; } //--------------------------------------------------------------------------- // Enable or disable multicast mode. IOReturn IOEthernetController::setMulticastMode(bool active) { return kIOReturnUnsupported; } //--------------------------------------------------------------------------- // Enable or disable promiscuous mode. IOReturn IOEthernetController::setPromiscuousMode(bool active) { return kIOReturnUnsupported; } //--------------------------------------------------------------------------- // Enable or disable the wake on Magic Packet support. IOReturn IOEthernetController::setWakeOnMagicPacket(bool active) { return kIOReturnUnsupported; } //--------------------------------------------------------------------------- // Set the list of multicast addresses that the multicast filter should use // to match against the destination address of an incoming frame. The frame // should be accepted when a match occurs. IOReturn IOEthernetController::setMulticastList(IOEthernetAddress * /*addrs*/, UInt32 /*count*/) { return kIOReturnUnsupported; } //--------------------------------------------------------------------------- // Allocate and return a new IOEthernetInterface instance. IONetworkInterface * IOEthernetController::createInterface() { IOEthernetInterface * netif = new IOEthernetInterface; if ( netif && ( netif->init( this ) == false ) ) { netif->release(); netif = 0; } return netif; } //--------------------------------------------------------------------------- // Returns all the packet filters supported by the Ethernet controller. // This method will perform a bitwise OR of: // // kIOPacketFilterUnicast // kIOPacketFilterBroadcast // kIOPacketFilterMulticast // kIOPacketFilterPromiscuous // // and write it to the argument provided if the group specified is // gIONetworkFilterGroup, otherwise 0 is returned. Drivers that support // a different set of filters should override this method. // // Returns kIOReturnSuccess. Drivers that override this method must return // kIOReturnSuccess to indicate success, or an error code otherwise. IOReturn IOEthernetController::getPacketFilters(const OSSymbol * group, UInt32 * filters) const { *filters = 0; if ( group == gIONetworkFilterGroup ) { return getPacketFilters(filters); } else { return kIOReturnSuccess; } } IOReturn IOEthernetController::getPacketFilters(UInt32 * filters) const { *filters = ( kIOPacketFilterUnicast | kIOPacketFilterBroadcast | kIOPacketFilterMulticast | kIOPacketFilterPromiscuous ); return kIOReturnSuccess; } //--------------------------------------------------------------------------- // Enable a filter from the specified group. #define UCAST_BCAST_MASK \ ( kIOPacketFilterUnicast | kIOPacketFilterBroadcast ) IOReturn IOEthernetController::enablePacketFilter( const OSSymbol * group, UInt32 aFilter, UInt32 enabledFilters, IOOptionBits options) { IOReturn ret = kIOReturnUnsupported; UInt32 newFilters = enabledFilters | aFilter; if ( group == gIONetworkFilterGroup ) { // The default action is to call setMulticastMode() or // setPromiscuousMode() to handle multicast or promiscuous // filter changes. if ( aFilter == kIOPacketFilterMulticast ) { ret = setMulticastMode(true); } else if ( aFilter == kIOPacketFilterPromiscuous ) { ret = setPromiscuousMode(true); } else if ( (newFilters ^ enabledFilters) & UCAST_BCAST_MASK ) { ret = kIOReturnSuccess; } } else if ( group == gIOEthernetWakeOnLANFilterGroup ) { if ( aFilter == kIOEthernetWakeOnMagicPacket ) { ret = setWakeOnMagicPacket(true); } } return ret; } //--------------------------------------------------------------------------- // Disable a filter from the specifed filter group. IOReturn IOEthernetController::disablePacketFilter( const OSSymbol * group, UInt32 aFilter, UInt32 enabledFilters, IOOptionBits options) { IOReturn ret = kIOReturnUnsupported; UInt32 newFilters = enabledFilters & ~aFilter; if ( group == gIONetworkFilterGroup ) { // The default action is to call setMulticastMode() or // setPromiscuousMode() to handle multicast or promiscuous // filter changes. if ( aFilter == kIOPacketFilterMulticast ) { ret = setMulticastMode(false); } else if ( aFilter == kIOPacketFilterPromiscuous ) { ret = setPromiscuousMode(false); } else if ( (newFilters ^ enabledFilters) & UCAST_BCAST_MASK ) { ret = kIOReturnSuccess; } } else if ( group == gIOEthernetWakeOnLANFilterGroup ) { if ( aFilter == kIOEthernetWakeOnMagicPacket ) { ret = setWakeOnMagicPacket(false); } } return ret; } //--------------------------------------------------------------------------- // Get the Ethernet controller's station address. // Call the Ethernet specific (overloaded) form. IOReturn IOEthernetController::getHardwareAddress(void * addr, UInt32 * inOutAddrBytes) { UInt32 bufBytes; if (inOutAddrBytes == 0) return kIOReturnBadArgument; // Cache the size of the caller's buffer, and replace it with the // number of bytes required. bufBytes = *inOutAddrBytes; *inOutAddrBytes = kIOEthernetAddressSize; // Make sure the buffer is large enough for a single Ethernet // hardware address. if ((addr == 0) || (bufBytes < kIOEthernetAddressSize)) return kIOReturnNoSpace; return getHardwareAddress((IOEthernetAddress *) addr); } //--------------------------------------------------------------------------- // Set or change the station address used by the Ethernet controller. // Call the Ethernet specific (overloaded) version of this method. IOReturn IOEthernetController::setHardwareAddress(const void * addr, UInt32 addrBytes) { if ((addr == 0) || (addrBytes != kIOEthernetAddressSize)) return kIOReturnBadArgument; return setHardwareAddress((const IOEthernetAddress *) addr); } //--------------------------------------------------------------------------- // Report the max/min packet sizes, including the frame header and FCS bytes. IOReturn IOEthernetController::getMaxPacketSize(UInt32 * maxSize) const { *maxSize = kIOEthernetMaxPacketSize; return kIOReturnSuccess; } IOReturn IOEthernetController::getMinPacketSize(UInt32 * minSize) const { *minSize = kIOEthernetMinPacketSize; return kIOReturnSuccess; } OSMetaClassDefineReservedUsed( IOEthernetController, 0); bool IOEthernetController::getVlanTagDemand(mbuf_t mt, UInt32 *vlantag) { u_int16_t tag; int rval = mbuf_get_vlan_tag(mt, &tag); if(rval == 0) { *vlantag = tag; return true; } return false; } OSMetaClassDefineReservedUsed( IOEthernetController, 1); void IOEthernetController::setVlanTag(mbuf_t mt, UInt32 vlantag) { mbuf_set_vlan_tag(mt, vlantag); }