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if_pppvar.h
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if_pppvar.h
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/* $NetBSD: if_pppvar.h,v 1.27 2008/02/20 17:05:53 matt Exp $ */
/* Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp */
/*
* if_pppvar.h - private structures and declarations for PPP.
*
* Copyright (c) 1989-2002 Paul Mackerras. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Paul Mackerras
* <paulus@samba.org>".
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Office of Technology Transfer
* Carnegie Mellon University
* 5000 Forbes Avenue
* Pittsburgh, PA 15213-3890
* (412) 268-4387, fax: (412) 268-7395
* tech-transfer@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_IF_PPPVAR_H_
#define _NET_IF_PPPVAR_H_
#include <sys/callout.h>
/*
* Supported network protocols. These values are used for
* indexing sc_npmode.
*/
#define NP_IP 0 /* Internet Protocol */
#define NP_IPV6 1 /* Internet Protocol version 6 */
#define NUM_NP 2 /* Number of NPs. */
/*
* Structure describing each ppp unit.
*/
struct ppp_softc {
struct ifnet sc_if; /* network-visible interface */
int sc_unit; /* XXX unit number */
u_int sc_flags; /* control/status bits; see if_ppp.h */
void *sc_devp; /* pointer to device-dep structure */
void (*sc_start)(struct ppp_softc *); /* start output proc */
void (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */
void (*sc_relinq)(struct ppp_softc *); /* relinquish ifunit */
struct callout sc_timo_ch; /* timeout callout */
uint16_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 */
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 */
void *sc_si; /* software interrupt handle */
#ifdef PPP_FILTER
/* Filter for packets to pass. */
struct bpf_program sc_pass_filt_in;
struct bpf_program sc_pass_filt_out;
/* Filter for "non-idle" packets. */
struct bpf_program sc_active_filt_in;
struct bpf_program sc_active_filt_out;
#endif /* PPP_FILTER */
#ifdef VJC
struct slcompress *sc_comp; /* vjc control buffer */
#endif
/* Device-dependent part for async lines. */
ext_accm sc_asyncmap; /* async control character map */
uint32_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 */
uint16_t sc_ilen; /* length of input packet so far */
uint16_t sc_fcs; /* FCS so far (input) */
uint16_t sc_outfcs; /* FCS so far for output packet */
uint16_t sc_maxfastq; /* Maximum number of packets that
* can be received back-to-back in
* the high priority queue */
uint8_t sc_nfastq; /* Number of packets received
* back-to-back in the high priority
* queue */
u_char sc_rawin_start; /* current char start */
struct ppp_rawin sc_rawin; /* chars as received */
LIST_ENTRY(ppp_softc) sc_iflist;
};
#ifdef _KERNEL
struct ppp_softc *pppalloc(pid_t);
void pppdealloc(struct ppp_softc *);
int pppioctl(struct ppp_softc *, u_long, void *, int, struct lwp *);
void ppp_restart(struct ppp_softc *);
void ppppktin(struct ppp_softc *, struct mbuf *, int);
struct mbuf *ppp_dequeue(struct ppp_softc *);
int pppoutput(struct ifnet *, struct mbuf *, const struct sockaddr *,
struct rtentry *);
#endif /* _KERNEL */
#endif /* !_NET_IF_PPPVAR_H_ */