/* * Copyright (c) 2008 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1997, 1998 Apple Computer, Inc. All Rights Reserved */ /* * @(#)ndrv.h 1.1 (MacOSX) 6/10/43 * Justin Walker - 970604 */ #include #ifndef _NET_NDRV_H #define _NET_NDRV_H #include #include #include struct sockaddr_ndrv { unsigned char snd_len; unsigned char snd_family; unsigned char snd_name[IFNAMSIZ]; /* from if.h */ }; /* * Support for user-mode protocol handlers */ #define NDRV_DEMUXTYPE_ETHERTYPE 4 #define NDRV_DEMUXTYPE_SAP 5 #define NDRV_DEMUXTYPE_SNAP 6 #define NDRVPROTO_NDRV 0 /* * Struct: ndrv_demux_desc * Purpose: * To uniquely identify a packet based on its low-level framing information. * * Fields: * type : type of protocol in data field, must be understood by * the interface family of the interface the socket is bound to * length : length of protocol data in "data" field * data : union of framing-specific data, in network byte order * ether_type : ethernet type in network byte order, assuming * ethernet type II framing * sap : first 3 bytes of sap header, network byte order * snap : first 5 bytes of snap header, network byte order * other : up to 28 bytes of protocol data for different protocol type * * Examples: * 1) 802.1x uses ether_type 0x888e, so the descriptor would be set as: * struct ndrv_demux_desc desc; * desc.type = NDRV_DEMUXTYPE_ETHERTYPE * desc.length = sizeof(unsigned short); * desc.ether_type = htons(0x888e); * 2) AppleTalk uses SNAP 0x080007809B * struct ndrv_demux_desc desc; * desc.type = NDRV_DEMUXTYPE_SNAP; * desc.length = 5; * desc.data.snap[0] = 08; * desc.data.snap[1] = 00; * desc.data.snap[2] = 07; * desc.data.snap[3] = 80; * desc.data.snap[4] = 9B; */ struct ndrv_demux_desc { u_int16_t type; u_int16_t length; union{ u_int16_t ether_type; u_int8_t sap[3]; u_int8_t snap[5]; u_int8_t other[28]; } data; }; #define NDRV_PROTOCOL_DESC_VERS 1 /* * Struct: ndrv_protocol_desc * Purpose: * Used to "bind" an NDRV socket so that packets that match * given protocol demux descriptions can be received: * Field: * version : must be NDRV_PROTOCOL_DESC_VERS * protocol_family : unique identifier for this protocol * demux_count : number of demux_list descriptors in demux_list; maximum of 10 * demux_list : pointer to array of demux descriptors */ struct ndrv_protocol_desc { u_int32_t version; u_int32_t protocol_family; u_int32_t demux_count; struct ndrv_demux_desc *demux_list; }; #ifdef KERNEL_PRIVATE /* LP64 version of ndrv_protocol_desc. all pointers * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with ndrv_protocol_desc */ struct ndrv_protocol_desc64 { u_int32_t version; u_int32_t protocol_family; u_int32_t demux_count; user64_addr_t demux_list __attribute__((aligned(8))); }; struct ndrv_protocol_desc32 { u_int32_t version; u_int32_t protocol_family; u_int32_t demux_count; user32_addr_t demux_list; }; #endif /* KERNEL_PRIVATE */ #define SOL_NDRVPROTO NDRVPROTO_NDRV /* Use this socket level */ #define NDRV_DELDMXSPEC 0x02 /* Delete the registered protocol */ #define NDRV_SETDMXSPEC 0x04 /* Set the protocol spec */ #define NDRV_ADDMULTICAST 0x05 /* Add a physical multicast address */ #define NDRV_DELMULTICAST 0x06 /* Delete a phyiscal multicast */ /* * SOL_NDRVPROTO - use this for the socket level when calling setsocketopt * NDRV_DELDMXSPEC - removes the registered protocol and all related demuxes * NDRV_SETDMXSPEC - set the protocol to receive, use struct ndrv_protocol_desc * as the parameter. * NDRV_ADDMULTICAST - Enable reception of a phyiscal multicast address, use * a sockaddr of the appropriate type for the media in use. * NDRV_DELMULTICAST - Disable reception of a phyiscal multicast address, use * a sockaddr of the appropriate type for the media in use. * * When adding multicasts, the multicasts are ref counted. If the multicast is * already registered in the kernel, the count will be bumped. When deleting * the multicast, the count is decremented. If the count reaches zero the * multicast is removed. If your process is killed, PF_NDRV will unregister * the mulitcasts you've added. You can only delete multicasts you've added * on the same socket. * * If the interface goes away while your socket is open, your protocol is * immediately detached and sending/receiving is disabled on the socket. * If you need a chance to do something, please file a bug and we can give * you a second or two. */ /* Max number of descriptions allowed by default */ #define NDRV_DMUX_MAX_DESCR 1024 /* * sysctl MIB tags at the kern.ipc.nrdv level */ #define NRDV_MULTICAST_ADDRS_PER_SOCK 1 /* to toggle NDRV_DMUX_MAX_DESCR value */ #endif /* _NET_NDRV_H */