[apple/xnu.git] / bsd / net / if_pppvar.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * 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.
 *
 */

/*
 * 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 */
/*hi*/	u_int	sc_flags;		/* control/status bits; see if_ppp.h */
	struct	callout_handle sc_ch;	/* Used for scheduling timeouts */
	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 */
	void	(*sc_setmtu) __P((struct ppp_softc *)); /* set mtu */
	short	sc_mru;			/* max receive unit */
	pid_t	sc_xfer;		/* used in transferring unit */
/*hi*/	struct	ifqueue sc_rawq;	/* received packets */
/*net*/	struct	ifqueue sc_inq;		/* queue of input packets for daemon */
/*net*/	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 */
	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 */
#if 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 */
#if	VJC
	struct	slcompress *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_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 */
};

extern 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));
int	pppoutput __P((struct ifnet *ifp, struct mbuf *m0,
		       struct sockaddr *dst, struct rtentry *rtp));
void	ppp_restart __P((struct ppp_softc *sc));
void	ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
struct	mbuf *ppp_dequeue __P((struct ppp_softc *sc));
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* if_pppvar.h - private structures and declarations for PPP.
	24	*
	25	* Copyright (c) 1994 The Australian National University.
	26	* All rights reserved.
	27	*
	28	* Permission to use, copy, modify, and distribute this software and its
	29	* documentation is hereby granted, provided that the above copyright
	30	* notice appears in all copies. This software is provided without any
	31	* warranty, express or implied. The Australian National University
	32	* makes no representations about the suitability of this software for
	33	* any purpose.
	34	*
	35	* IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
	36	* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
	37	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
	38	* THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
	39	* OF SUCH DAMAGE.
	40	*
	41	* THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
	42	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	43	* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
	44	* ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
	45	* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
	46	* OR MODIFICATIONS.
	47	*
	48	* Copyright (c) 1989 Carnegie Mellon University.
	49	* All rights reserved.
	50	*
	51	* Redistribution and use in source and binary forms are permitted
	52	* provided that the above copyright notice and this paragraph are
	53	* duplicated in all such forms and that any documentation,
	54	* advertising materials, and other materials related to such
	55	* distribution and use acknowledge that the software was developed
	56	* by Carnegie Mellon University. The name of the
	57	* University may not be used to endorse or promote products derived
	58	* from this software without specific prior written permission.
	59	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	60	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	61	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	62	*
	63	*/
	64
65	/*
66	* Supported network protocols. These values are used for
67	* indexing sc_npmode.
68	*/
69	#define NP_IP 0 /* Internet Protocol */
70	#define NUM_NP 1 /* Number of NPs. */
71
72	/*
73	* Structure describing each ppp unit.
74	*/
75	struct ppp_softc {
76	struct ifnet sc_if; /* network-visible interface */
77	/hi/ u_int sc_flags; /* control/status bits; see if_ppp.h */
78	struct callout_handle sc_ch; /* Used for scheduling timeouts */
79	void sc_devp; / pointer to device-dep structure */
80	void (sc_start) __P((struct ppp_softc )); /* start output proc */
81	void (sc_ctlp) __P((struct ppp_softc )); /* rcvd control pkt */
82	void (sc_relinq) __P((struct ppp_softc )); /* relinquish ifunit */
83	void (sc_setmtu) __P((struct ppp_softc )); /* set mtu */
84	short sc_mru; /* max receive unit */
85	pid_t sc_xfer; /* used in transferring unit */
86	/hi/ struct ifqueue sc_rawq; /* received packets */
87	/net/ struct ifqueue sc_inq; /* queue of input packets for daemon */
88	/net/ struct ifqueue sc_fastq; /* interactive output packet q */
89	struct mbuf sc_npqueue; / output packets not to be sent yet */
90	struct mbuf *sc_npqtail; / ptr to last next ptr in npqueue */
91	struct pppstat sc_stats; /* count of bytes/pkts sent/rcvd */
92	enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
93	struct compressor sc_xcomp; / transmit compressor */
94	void sc_xc_state; / transmit compressor state */
95	struct compressor sc_rcomp; / receive decompressor */
96	void sc_rc_state; / receive decompressor state */
97	time_t sc_last_sent; /* time (secs) last NP pkt sent */
98	time_t sc_last_recv; /* time (secs) last NP pkt rcvd */
99	#if PPP_FILTER
100	struct bpf_program sc_pass_filt; /* filter for packets to pass */
101	struct bpf_program sc_active_filt; /* filter for "non-idle" packets */
102	#endif /* PPP_FILTER */
103	#if VJC
104	struct slcompress sc_comp; / vjc control buffer */
105	#endif
106
107	/* Device-dependent part for async lines. */
108	ext_accm sc_asyncmap; /* async control character map */
109	u_long sc_rasyncmap; /* receive async control char map */
110	struct mbuf sc_outm; / mbuf chain currently being output */
111	struct mbuf sc_m; / pointer to input mbuf chain */
112	struct mbuf sc_mc; / pointer to current input mbuf */
113	char sc_mp; / ptr to next char in input mbuf */
114	short sc_ilen; /* length of input packet so far */
115	u_short sc_fcs; /* FCS so far (input) */
116	u_short sc_outfcs; /* FCS so far for output packet */
117	u_char sc_rawin[16]; /* chars as received */
118	int sc_rawin_count; /* # in sc_rawin */
119	};
120
121	extern struct ppp_softc ppp_softc[NPPP];
122
123	struct ppp_softc *pppalloc __P((pid_t pid));
124	void pppdealloc __P((struct ppp_softc *sc));
125	int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data,
126	int flag, struct proc *p));
127	int pppoutput __P((struct ifnet ifp, struct mbuf m0,
128	struct sockaddr dst, struct rtentry rtp));
129	void ppp_restart __P((struct ppp_softc *sc));
130	void ppppktin __P((struct ppp_softc sc, struct mbuf m, int lost));
131	struct mbuf ppp_dequeue __P((struct ppp_softc sc));