6654fd558b
trivial multicast support, and support for xon/xoff output flow control to the PPP subsystem. Fixed several bugs, including making the accumulation and resetting of statistics more consistent. State for the VJ compressor is now dynamically allocated.
106 lines
4.8 KiB
C
106 lines
4.8 KiB
C
/* $NetBSD: if_pppvar.h,v 1.3 1996/03/15 02:28:06 paulus Exp $ */
|
|
/*
|
|
* 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 MERCHANTIBILITY 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 */
|
|
u_int sc_flags; /* control/status bits; see if_ppp.h */
|
|
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 */
|
|
u_int16_t sc_mru; /* max receive unit */
|
|
pid_t sc_xfer; /* used in transferring unit */
|
|
struct ifqueue sc_rawq; /* received packets */
|
|
struct ifqueue sc_inq; /* queue of input packets for daemon */
|
|
struct ifqueue sc_fastq; /* interactive output packet q */
|
|
struct mbuf *sc_togo; /* output packet ready to go */
|
|
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 */
|
|
caddr_t sc_bpf; /* hook for BPF */
|
|
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 */
|
|
struct bpf_program sc_pass_filt; /* filter for packets to pass */
|
|
struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
|
|
#ifdef VJC
|
|
struct slcompress *sc_comp; /* vjc control buffer */
|
|
#endif
|
|
|
|
/* Device-dependent part for async lines. */
|
|
ext_accm sc_asyncmap; /* async control character map */
|
|
u_int32_t 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 */
|
|
u_int16_t sc_ilen; /* length of input packet so far */
|
|
u_int16_t sc_fcs; /* FCS so far (input) */
|
|
u_int16_t sc_outfcs; /* FCS so far for output packet */
|
|
u_char sc_rawin[16]; /* chars as received */
|
|
int sc_rawin_count; /* # in sc_rawin */
|
|
};
|
|
|
|
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));
|
|
void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
|
|
struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
|