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Diffstat (limited to 'cpukit/libnetworking/net/if_pppvar.h')
| -rw-r--r-- | cpukit/libnetworking/net/if_pppvar.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/cpukit/libnetworking/net/if_pppvar.h b/cpukit/libnetworking/net/if_pppvar.h new file mode 100644 index 0000000000..4bb6a086b0 --- /dev/null +++ b/cpukit/libnetworking/net/if_pppvar.h @@ -0,0 +1,158 @@ +/* + * 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. + * + * $FreeBSD: src/sys/net/if_pppvar.h,v 1.26 2006/12/05 18:54:21 ume Exp $ + */ + +#ifndef _NET_IF_PPPVAR_H_ +#define _NET_IF_PPPVAR_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * $Id$ + */ + +/* + * Supported network protocols. These values are used for + * indexing sc_npmode. + */ +#define NP_IP 0 /* Internet Protocol */ +#define NUM_NP 1 /* Number of NPs. */ +#define NUM_MBUFQ 64 + + +/* + * 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)(struct ppp_softc *); /* start output proc */ + void (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */ + void (*sc_relinq)(struct ppp_softc *); /* relinquish ifunit */ + short 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_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 */ +#ifdef 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 */ +#ifdef VJC + struct vjcompress *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_outmc; /* mbuf 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 */ + + struct ifqueue sc_freeq; /* free packets */ + short sc_outoff; /* output packet byte offset */ + short sc_outflag; /* output status flag */ + short sc_outlen; /* length of output packet */ + short sc_outfcslen; /* length of output fcs data */ + u_char sc_outfcsbuf[8]; /* output packet fcs buffer */ + u_char *sc_outbuf; /* pointer to output data */ + u_char sc_outchar; + + rtems_id sc_rxtask; + rtems_id sc_txtask; + rtems_id sc_pppdtask; +}; + +struct ppp_softc *pppalloc(pid_t pid); +void pppdealloc(struct ppp_softc *sc); +int pppoutput(struct ifnet *, struct mbuf *, + struct sockaddr *, struct rtentry *); +int pppioctl(struct ppp_softc *sc, ioctl_command_t cmd, caddr_t data, + int flag, struct proc *p); +struct mbuf *ppp_dequeue(struct ppp_softc *sc); +u_short pppfcs(u_short fcs, u_char *cp, int len); +void pppallocmbuf(struct ppp_softc *sc, struct mbuf **mp); + + +/* define event values */ +#define RX_PACKET RTEMS_EVENT_1 +#define RX_MBUF RTEMS_EVENT_2 +#define RX_EMPTY RTEMS_EVENT_3 +#define TX_PACKET RTEMS_EVENT_1 +#define TX_TRANSMIT RTEMS_EVENT_2 +#define PPPD_EVENT RTEMS_EVENT_31 + +/* define out flag values */ +#define SC_TX_BUSY 0x0001 +#define SC_TX_FCS 0x0002 +#define SC_TX_ESCAPE 0x0004 +#define SC_TX_LASTCHAR 0x0008 +#define SC_TX_PENDING 0x0010 + +#ifdef __cplusplus +} +#endif + +#endif /* _NET_IF_PPPVAR_H_ */ + |