1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * if_pppvar.h - private structures and declarations for PPP. 30 * 31 * Copyright (c) 1994 The Australian National University. 32 * All rights reserved. 33 * 34 * Permission to use, copy, modify, and distribute this software and its 35 * documentation is hereby granted, provided that the above copyright 36 * notice appears in all copies. This software is provided without any 37 * warranty, express or implied. The Australian National University 38 * makes no representations about the suitability of this software for 39 * any purpose. 40 * 41 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY 42 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 43 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 44 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY 45 * OF SUCH DAMAGE. 46 * 47 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, 48 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 49 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 50 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO 51 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 52 * OR MODIFICATIONS. 53 * 54 * Copyright (c) 1989 Carnegie Mellon University. 55 * All rights reserved. 56 * 57 * Redistribution and use in source and binary forms are permitted 58 * provided that the above copyright notice and this paragraph are 59 * duplicated in all such forms and that any documentation, 60 * advertising materials, and other materials related to such 61 * distribution and use acknowledge that the software was developed 62 * by Carnegie Mellon University. The name of the 63 * University may not be used to endorse or promote products derived 64 * from this software without specific prior written permission. 65 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 66 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 67 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 68 * 69 * $FreeBSD: src/sys/net/if_pppvar.h,v 1.15 2000/01/29 16:56:23 peter Exp $ 70 */ 71 72#include <sys/appleapiopts.h> 73#ifndef DONT_WARN_OBSOLETE 74#warning if_pppvar.h is not used by the darwin kernel 75#endif 76 77#ifdef KERNEL_PRIVATE 78 79/* 80 * Supported network protocols. These values are used for 81 * indexing sc_npmode. 82 */ 83#define NP_IP 0 /* Internet Protocol */ 84#define NUM_NP 1 /* Number of NPs. */ 85 86/* 87 * Structure describing each ppp unit. 88 */ 89struct ppp_softc { 90 struct ifnet sc_if; /* network-visible interface */ 91/*hi*/ u_int sc_flags; /* control/status bits; see if_ppp.h */ 92 struct callout_handle sc_ch; /* Used for scheduling timeouts */ 93 void *sc_devp; /* pointer to device-dep structure */ 94 void (*sc_start)(struct ppp_softc *); /* start output proc */ 95 void (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */ 96 void (*sc_relinq)(struct ppp_softc *); /* relinquish ifunit */ 97 void (*sc_setmtu)(struct ppp_softc *); /* set mtu */ 98 short sc_mru; /* max receive unit */ 99 pid_t sc_xfer; /* used in transferring unit */ 100/*hi*/ struct ifqueue sc_rawq; /* received packets */ 101/*net*/ struct ifqueue sc_inq; /* queue of input packets for daemon */ 102/*net*/ struct ifqueue sc_fastq; /* interactive output packet q */ 103 struct mbuf *sc_npqueue; /* output packets not to be sent yet */ 104 struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */ 105 struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */ 106 enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */ 107 struct compressor *sc_xcomp; /* transmit compressor */ 108 void *sc_xc_state; /* transmit compressor state */ 109 struct compressor *sc_rcomp; /* receive decompressor */ 110 void *sc_rc_state; /* receive decompressor state */ 111 time_t sc_last_sent; /* time (secs) last NP pkt sent */ 112 time_t sc_last_recv; /* time (secs) last NP pkt rcvd */ 113#if PPP_FILTER 114 struct bpf_program sc_pass_filt; /* filter for packets to pass */ 115 struct bpf_program sc_active_filt; /* filter for "non-idle" packets */ 116#endif /* PPP_FILTER */ 117#if VJC 118 struct slcompress *sc_comp; /* vjc control buffer */ 119#endif 120 121 /* Device-dependent part for async lines. */ 122 ext_accm sc_asyncmap; /* async control character map */ 123 u_int32_t sc_rasyncmap; /* receive async control char map */ 124 struct mbuf *sc_outm; /* mbuf chain currently being output */ 125 struct mbuf *sc_m; /* pointer to input mbuf chain */ 126 struct mbuf *sc_mc; /* pointer to current input mbuf */ 127 char *sc_mp; /* ptr to next char in input mbuf */ 128 short sc_ilen; /* length of input packet so far */ 129 u_short sc_fcs; /* FCS so far (input) */ 130 u_short sc_outfcs; /* FCS so far for output packet */ 131 u_char sc_rawin[16]; /* chars as received */ 132 int sc_rawin_count; /* # in sc_rawin */ 133}; 134 135extern struct ppp_softc ppp_softc[]; 136 137struct ppp_softc *pppalloc(pid_t pid); 138void pppdealloc(struct ppp_softc *sc); 139int pppioctl(struct ppp_softc *sc, u_long cmd, caddr_t data, 140 int flag, struct proc *p); 141int pppoutput(struct ifnet *ifp, struct mbuf *m0, 142 struct sockaddr *dst, struct rtentry *rtp); 143void ppp_restart(struct ppp_softc *sc); 144void ppppktin(struct ppp_softc *sc, struct mbuf *m, int lost); 145struct mbuf *ppp_dequeue(struct ppp_softc *sc); 146#endif /* __APPLE_API_PRIVATE */ 147