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- /*
- * Copyright (c) 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@
- */
- /*
- * if_pppvar.h - private structures and declarations for PPP.
- *
- * Copyright (c) 1994 The Australian National University.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation is hereby granted, provided that the above copyright
- * notice appears in all copies. This software is provided without any
- * warranty, express or implied. The Australian National University
- * makes no representations about the suitability of this software for
- * any purpose.
- *
- * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
- * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
- * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
- * OR MODIFICATIONS.
- *
- * Copyright (c) 1989 Carnegie Mellon University.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Carnegie Mellon University. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
- /*
- * Supported network protocols. These values are used for
- * indexing sc_npmode.
- */
- #define NP_IP 0 /* Internet Protocol */
- #define NUM_NP 1 /* Number of NPs. */
-
- /*
- * Structure describing each ppp unit.
- */
- struct ppp_softc {
- struct ifnet sc_if; /* network-visible interface */
- /*hi*/ u_int sc_flags; /* control/status bits; see if_ppp.h */
- struct callout_handle sc_ch; /* Used for scheduling timeouts */
- void *sc_devp; /* pointer to device-dep structure */
- void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
- void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
- void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
- void (*sc_setmtu) __P((struct ppp_softc *)); /* set mtu */
- short sc_mru; /* max receive unit */
- pid_t sc_xfer; /* used in transferring unit */
- /*hi*/ struct ifqueue sc_rawq; /* received packets */
- /*net*/ struct ifqueue sc_inq; /* queue of input packets for daemon */
- /*net*/ struct ifqueue sc_fastq; /* interactive output packet q */
- struct mbuf *sc_npqueue; /* output packets not to be sent yet */
- struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
- struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
- enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
- struct compressor *sc_xcomp; /* transmit compressor */
- void *sc_xc_state; /* transmit compressor state */
- struct compressor *sc_rcomp; /* receive decompressor */
- void *sc_rc_state; /* receive decompressor state */
- time_t sc_last_sent; /* time (secs) last NP pkt sent */
- time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
- #if PPP_FILTER
- struct bpf_program sc_pass_filt; /* filter for packets to pass */
- struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
- #endif /* PPP_FILTER */
- #if VJC
- struct slcompress *sc_comp; /* vjc control buffer */
- #endif
-
- /* Device-dependent part for async lines. */
- ext_accm sc_asyncmap; /* async control character map */
- u_long sc_rasyncmap; /* receive async control char map */
- struct mbuf *sc_outm; /* mbuf chain currently being output */
- struct mbuf *sc_m; /* pointer to input mbuf chain */
- struct mbuf *sc_mc; /* pointer to current input mbuf */
- char *sc_mp; /* ptr to next char in input mbuf */
- short sc_ilen; /* length of input packet so far */
- u_short sc_fcs; /* FCS so far (input) */
- u_short sc_outfcs; /* FCS so far for output packet */
- u_char sc_rawin[16]; /* chars as received */
- int sc_rawin_count; /* # in sc_rawin */
- };
-
- extern struct ppp_softc ppp_softc[NPPP];
-
- struct ppp_softc *pppalloc __P((pid_t pid));
- void pppdealloc __P((struct ppp_softc *sc));
- int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data,
- int flag, struct proc *p));
- int pppoutput __P((struct ifnet *ifp, struct mbuf *m0,
- struct sockaddr *dst, struct rtentry *rtp));
- void ppp_restart __P((struct ppp_softc *sc));
- void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
- struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
-