61f3d632c1
2.3.0 -> 2.3.1 changes, but I seem to recall that there are certain "issues" with 2.3.1 (I'm not sure if it's just pppd or the whole lot, I am not quite that far). The present pppd seems to work with it just fine for the time being. Among the changes are that zlib (aka LZ77 aka deflate aka gzip) compression is implemented as well as the original compress(1) LZW style.
111 lines
4.9 KiB
C
111 lines
4.9 KiB
C
/*
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* if_pppvar.h - private structures and declarations for PPP.
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*
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* Copyright (c) 1994 The Australian National University.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, provided that the above copyright
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* notice appears in all copies. This software is provided without any
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* warranty, express or implied. The Australian National University
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* makes no representations about the suitability of this software for
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* any purpose.
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*
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* IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
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* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
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* THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
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* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
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* OR MODIFICATIONS.
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*
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* Copyright (c) 1989 Carnegie Mellon University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by Carnegie Mellon University. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id$
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*/
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/*
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* Supported network protocols. These values are used for
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* indexing sc_npmode.
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*/
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#define NP_IP 0 /* Internet Protocol */
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#define NUM_NP 1 /* Number of NPs. */
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/*
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* Structure describing each ppp unit.
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*/
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struct ppp_softc {
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struct ifnet sc_if; /* network-visible interface */
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/*hi*/ u_int sc_flags; /* control/status bits; see if_ppp.h */
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void *sc_devp; /* pointer to device-dep structure */
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void (*sc_start) __P((struct ppp_softc *)); /* start output proc */
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void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
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void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
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void (*sc_setmtu) __P((struct ppp_softc *)); /* set mtu */
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short sc_mru; /* max receive unit */
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pid_t sc_xfer; /* used in transferring unit */
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/*hi*/ struct ifqueue sc_rawq; /* received packets */
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/*net*/ struct ifqueue sc_inq; /* queue of input packets for daemon */
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/*net*/ struct ifqueue sc_fastq; /* interactive output packet q */
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struct mbuf *sc_npqueue; /* output packets not to be sent yet */
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struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */
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struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
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enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
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struct compressor *sc_xcomp; /* transmit compressor */
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void *sc_xc_state; /* transmit compressor state */
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struct compressor *sc_rcomp; /* receive decompressor */
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void *sc_rc_state; /* receive decompressor state */
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time_t sc_last_sent; /* time (secs) last NP pkt sent */
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time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
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#ifdef PPP_FILTER
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struct bpf_program sc_pass_filt; /* filter for packets to pass */
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struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
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#endif /* PPP_FILTER */
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#ifdef VJC
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struct slcompress *sc_comp; /* vjc control buffer */
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#endif
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/* Device-dependent part for async lines. */
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ext_accm sc_asyncmap; /* async control character map */
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u_long sc_rasyncmap; /* receive async control char map */
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struct mbuf *sc_outm; /* mbuf chain currently being output */
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struct mbuf *sc_m; /* pointer to input mbuf chain */
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struct mbuf *sc_mc; /* pointer to current input mbuf */
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char *sc_mp; /* ptr to next char in input mbuf */
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short sc_ilen; /* length of input packet so far */
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u_short sc_fcs; /* FCS so far (input) */
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u_short sc_outfcs; /* FCS so far for output packet */
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u_char sc_rawin[16]; /* chars as received */
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int sc_rawin_count; /* # in sc_rawin */
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};
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extern struct ppp_softc ppp_softc[NPPP];
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struct ppp_softc *pppalloc __P((pid_t pid));
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void pppdealloc __P((struct ppp_softc *sc));
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int pppioctl __P((struct ppp_softc *sc, int cmd, caddr_t data,
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int flag, struct proc *p));
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int pppoutput __P((struct ifnet *ifp, struct mbuf *m0,
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struct sockaddr *dst, struct rtentry *rtp));
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void ppp_restart __P((struct ppp_softc *sc));
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void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
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struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
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