1 /* $NetBSD: if_pppvar.h,v 1.14 2002/05/12 20:38:16 matt Exp $ */ 2 /* Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp */ 3 4 /* 5 * if_pppvar.h - private structures and declarations for PPP. 6 * 7 * Copyright (c) 1994 The Australian National University. 8 * All rights reserved. 9 * 10 * Permission to use, copy, modify, and distribute this software and its 11 * documentation is hereby granted, provided that the above copyright 12 * notice appears in all copies. This software is provided without any 13 * warranty, express or implied. The Australian National University 14 * makes no representations about the suitability of this software for 15 * any purpose. 16 * 17 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY 18 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 19 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 20 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY 21 * OF SUCH DAMAGE. 22 * 23 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, 24 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 25 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 26 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO 27 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 28 * OR MODIFICATIONS. 29 * 30 * Copyright (c) 1989 Carnegie Mellon University. 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms are permitted 34 * provided that the above copyright notice and this paragraph are 35 * duplicated in all such forms and that any documentation, 36 * advertising materials, and other materials related to such 37 * distribution and use acknowledge that the software was developed 38 * by Carnegie Mellon University. The name of the 39 * University may not be used to endorse or promote products derived 40 * from this software without specific prior written permission. 41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 42 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 43 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 44 */ 45 46 #ifndef _NET_IF_PPPVAR_H_ 47 #define _NET_IF_PPPVAR_H_ 48 49 #include <sys/callout.h> 50 51 /* 52 * Supported network protocols. These values are used for 53 * indexing sc_npmode. 54 */ 55 #define NP_IP 0 /* Internet Protocol */ 56 #define NP_IPV6 1 /* Internet Protocol version 6 */ 57 #define NUM_NP 2 /* Number of NPs. */ 58 59 /* 60 * Structure describing each ppp unit. 61 */ 62 struct ppp_softc { 63 struct ifnet sc_if; /* network-visible interface */ 64 int sc_unit; /* XXX unit number */ 65 u_int sc_flags; /* control/status bits; see if_ppp.h */ 66 void *sc_devp; /* pointer to device-dep structure */ 67 void (*sc_start) __P((struct ppp_softc *)); /* start output proc */ 68 void (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */ 69 void (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */ 70 struct callout sc_timo_ch; /* timeout callout */ 71 u_int16_t sc_mru; /* max receive unit */ 72 pid_t sc_xfer; /* used in transferring unit */ 73 struct ifqueue sc_rawq; /* received packets */ 74 struct ifqueue sc_inq; /* queue of input packets for daemon */ 75 struct ifqueue sc_fastq; /* interactive output packet q */ 76 struct mbuf *sc_togo; /* output packet ready to go */ 77 struct mbuf *sc_npqueue; /* output packets not to be sent yet */ 78 struct mbuf **sc_npqtail; /* ptr to last next ptr in npqueue */ 79 struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */ 80 enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */ 81 struct compressor *sc_xcomp; /* transmit compressor */ 82 void *sc_xc_state; /* transmit compressor state */ 83 struct compressor *sc_rcomp; /* receive decompressor */ 84 void *sc_rc_state; /* receive decompressor state */ 85 time_t sc_last_sent; /* time (secs) last NP pkt sent */ 86 time_t sc_last_recv; /* time (secs) last NP pkt rcvd */ 87 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS 88 void *sc_si; /* software interrupt handle */ 89 #endif 90 #ifdef PPP_FILTER 91 /* Filter for packets to pass. */ 92 struct bpf_program sc_pass_filt_in; 93 struct bpf_program sc_pass_filt_out; 94 95 /* Filter for "non-idle" packets. */ 96 struct bpf_program sc_active_filt_in; 97 struct bpf_program sc_active_filt_out; 98 #endif /* PPP_FILTER */ 99 #ifdef VJC 100 struct slcompress *sc_comp; /* vjc control buffer */ 101 #endif 102 103 /* Device-dependent part for async lines. */ 104 ext_accm sc_asyncmap; /* async control character map */ 105 u_int32_t sc_rasyncmap; /* receive async control char map */ 106 struct mbuf *sc_outm; /* mbuf chain currently being output */ 107 struct mbuf *sc_m; /* pointer to input mbuf chain */ 108 struct mbuf *sc_mc; /* pointer to current input mbuf */ 109 char *sc_mp; /* ptr to next char in input mbuf */ 110 u_int16_t sc_ilen; /* length of input packet so far */ 111 u_int16_t sc_fcs; /* FCS so far (input) */ 112 u_int16_t sc_outfcs; /* FCS so far for output packet */ 113 u_char sc_rawin[16]; /* chars as received */ 114 int sc_rawin_count; /* # in sc_rawin */ 115 }; 116 117 #ifdef _KERNEL 118 extern struct ppp_softc ppp_softc[]; 119 120 struct ppp_softc *pppalloc __P((pid_t pid)); 121 void pppdealloc __P((struct ppp_softc *sc)); 122 int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data, 123 int flag, struct proc *p)); 124 void ppp_restart __P((struct ppp_softc *sc)); 125 void ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost)); 126 struct mbuf *ppp_dequeue __P((struct ppp_softc *sc)); 127 int pppoutput __P((struct ifnet *, struct mbuf *, 128 struct sockaddr *, struct rtentry *)); 129 #endif /* _KERNEL */ 130 131 #endif /* _NET_IF_PPPVAR_H_ */ 132