natm.h revision 139823 
1/*	$NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $	*/
2/* $FreeBSD: head/sys/netnatm/natm.h 139823 2005-01-07 01:45:51Z imp $ */
3
4/*-
5 *
6 * Copyright (c) 1996 Charles D. Cranor and Washington University.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *      This product includes software developed by Charles D. Cranor and
20 *      Washington University.
21 * 4. The name of the author may not be used to endorse or promote products
22 *    derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36/*
37 * natm.h: native mode atm
38 */
39
40/*
41 * supported protocols
42 */
43#define	PROTO_NATMAAL0		1
44#define	PROTO_NATMAAL5		2
45
46/*
47 * sockaddr_natm
48 */
49
50struct sockaddr_natm {
51	unsigned char	snatm_len;		/* length */
52	sa_family_t	snatm_family;		/* AF_NATM */
53	char		snatm_if[IFNAMSIZ];	/* interface name */
54	u_int16_t	snatm_vci;		/* vci */
55	u_int8_t	snatm_vpi;		/* vpi */
56};
57
58#if defined(__FreeBSD__) && defined(_KERNEL)
59
60#define	SPLSOFTNET() splnet()
61
62#elif defined(__NetBSD__) || defined(__OpenBSD__)
63
64#define	SPLSOFTNET() splsoftnet()
65
66#endif
67
68#ifdef _KERNEL
69
70/*
71 * natm protocol control block
72 */
73struct natmpcb {
74	LIST_ENTRY(natmpcb) pcblist;	/* list pointers */
75	u_int		npcb_inq;	/* # of our pkts in proto q */
76	struct socket	*npcb_socket;	/* backpointer to socket */
77	struct ifnet	*npcb_ifp;	/* pointer to hardware */
78	struct in_addr	ipaddr;		/* remote IP address, if APCB_IP */
79	u_int16_t	npcb_vci;	/* VCI */
80	u_int8_t	npcb_vpi;	/* VPI */
81	u_int8_t	npcb_flags;	/* flags */
82};
83
84/* flags */
85#define	NPCB_FREE	0x01		/* free (not on any list) */
86#define	NPCB_CONNECTED	0x02		/* connected */
87#define	NPCB_IP		0x04		/* used by IP */
88#define	NPCB_DRAIN	0x08		/* destory as soon as inq == 0 */
89
90/* flag arg to npcb_free */
91#define	NPCB_REMOVE	0		/* remove from global list */
92#define	NPCB_DESTROY	1		/* destroy and be free */
93
94LIST_HEAD(npcblist, natmpcb);
95
96/* global data structures */
97
98extern struct npcblist natm_pcbs;	/* global list of pcbs */
99#define	NATM_STAT
100#ifdef NATM_STAT
101extern	u_int	natm_sodropcnt;
102extern	u_int	natm_sodropbytes;	/* account of droppage */
103extern	u_int	natm_sookcnt;
104extern	u_int	natm_sookbytes;		/* account of ok */
105#endif
106
107/* external functions */
108
109/* natm_pcb.c */
110struct	natmpcb *npcb_alloc(int);
111void	npcb_free(struct natmpcb *, int);
112struct	natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t);
113
114/* natm.c */
115#if defined(__NetBSD__) || defined(__OpenBSD__)
116int	natm_usrreq(struct socket *, int, struct mbuf *,
117	    struct mbuf *, struct mbuf *, struct proc *);
118#elif defined(__FreeBSD__)
119#if __FreeBSD__ > 2
120/*
121 * FreeBSD new usrreqs style appeared since 2.2.  compatibility to old style
122 * has gone since 3.0.
123 */
124#define	FREEBSD_USRREQS
125extern struct pr_usrreqs natm_usrreqs;
126#else /* !( __FreeBSD__ > 2) */
127int	natm_usrreq(struct socket *, int, struct mbuf *,
128	    struct mbuf *, struct mbuf *);
129#endif /* !( __FreeBSD__ > 2) */
130#endif
131
132#ifdef SYSCTL_HANDLER_ARGS
133int	natm0_sysctl(SYSCTL_HANDLER_ARGS);
134int	natm5_sysctl(SYSCTL_HANDLER_ARGS);
135#endif
136
137void	natmintr(struct mbuf *);
138
139#endif
140