1 /* $OpenBSD: natm.h,v 1.6 2002/03/14 01:27:12 millert Exp $ */
2
3 /*
4 *
5 * Copyright (c) 1996 Charles D. Cranor and Washington University.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Charles D. Cranor and
19 * Washington University.
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 /*
36 * natm.h: native mode atm
37 */
38
39
40 /*
41 * supported protocols
42 */
43
44 #define PROTO_NATMAAL0 1
45 #define PROTO_NATMAAL5 2
46
47 /*
48 * sockaddr_natm
49 */
50
51 struct sockaddr_natm {
52 u_int8_t snatm_len; /* length */
53 u_int8_t snatm_family; /* AF_NATM */
54 char snatm_if[IFNAMSIZ]; /* interface name */
55 u_int16_t snatm_vci; /* vci */
56 u_int8_t snatm_vpi; /* vpi */
57 };
58
59
60 #if defined(__FreeBSD__) && defined(KERNEL)
61
62 #ifndef _KERNEL
63 #define _KERNEL
64 #endif
65
66 #define SPLSOFTNET() splnet()
67
68 #elif defined(__NetBSD__) || defined(__OpenBSD__)
69
70 #define SPLSOFTNET() splsoftnet()
71
72 #endif
73
74 #ifdef _KERNEL
75
76 /*
77 * natm protocol control block
78 */
79
80 struct natmpcb {
81 LIST_ENTRY(natmpcb) pcblist; /* list pointers */
82 u_int npcb_inq; /* # of our pkts in proto q */
83 struct socket *npcb_socket; /* backpointer to socket */
84 struct ifnet *npcb_ifp; /* pointer to hardware */
85 struct in_addr ipaddr; /* remote IP address, if NPCB_IP */
86 u_int16_t npcb_vci; /* VCI */
87 u_int8_t npcb_vpi; /* VPI */
88 u_int8_t npcb_flags; /* flags */
89 };
90
91 /* flags */
92 #define NPCB_FREE 0x01 /* free (not on any list) */
93 #define NPCB_CONNECTED 0x02 /* connected */
94 #define NPCB_IP 0x04 /* used by IP */
95 #define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */
96 #define NPCB_RAW 0x10 /* in 'raw' mode? */
97
98 /* flag arg to npcb_free */
99 #define NPCB_REMOVE 0 /* remove from global list */
100 #define NPCB_DESTROY 1 /* destroy and be free */
101
102 /*
103 * NPCB_RAWCC is a hack which applies to connections in 'raw' mode. it
104 * is used to override the sbspace() macro when you *really* don't want
105 * to drop rcv data. the recv socket buffer size is raised to this value.
106 *
107 * XXX: socket buffering needs to be looked at.
108 */
109
110 #define NPCB_RAWCC (1024*1024) /* 1MB */
111
112 LIST_HEAD(npcblist, natmpcb);
113
114 /* global data structures */
115
116 struct npcblist natm_pcbs; /* global list of pcbs */
117 extern struct ifqueue natmintrq; /* natm packet input queue */
118 #define NATM_STAT
119 #ifdef NATM_STAT
120 extern u_int natm_sodropcnt,
121 natm_sodropbytes; /* account of droppage */
122 extern u_int natm_sookcnt,
123 natm_sookbytes; /* account of ok */
124 #endif
125
126 /* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
127 struct atm_rawioctl {
128 struct natmpcb *npcb;
129 int rawvalue;
130 };
131 #define SIOCXRAWATM _IOWR('a', 125, struct atm_rawioctl)
132
133 /* external functions */
134
135 /* natm_pcb.c */
136 struct natmpcb *npcb_alloc(int);
137 void npcb_free(struct natmpcb *, int);
138 struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int);
139
140 /* natm.c */
141 #if defined(__NetBSD__)
142 int natm_usrreq(struct socket *, int, struct mbuf *,
143 struct mbuf *, struct mbuf *, struct proc *);
144 #elif defined(__OpenBSD__) || defined(FreeBSD)
145 int natm_usrreq(struct socket *, int, struct mbuf *,
146 struct mbuf *, struct mbuf *);
147 #endif
148 int natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t);
149 int natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t);
150 void natmintr(void);
151
152 #endif