FreeBSD/Linux Kernel Cross Reference
sys/netnatm/natm.h
1 /* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $ */
2 /* $FreeBSD: releng/6.2/sys/netnatm/natm.h 149078 2005-08-15 09:52:22Z rwatson $ */
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
50 struct 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 #ifdef _KERNEL
59
60 /*
61 * natm protocol control block
62 */
63 struct natmpcb {
64 LIST_ENTRY(natmpcb) pcblist; /* list pointers */
65 u_int npcb_inq; /* # of our pkts in proto q */
66 struct socket *npcb_socket; /* backpointer to socket */
67 struct ifnet *npcb_ifp; /* pointer to hardware */
68 struct in_addr ipaddr; /* remote IP address, if APCB_IP */
69 u_int16_t npcb_vci; /* VCI */
70 u_int8_t npcb_vpi; /* VPI */
71 u_int8_t npcb_flags; /* flags */
72 };
73
74 /* flags */
75 #define NPCB_FREE 0x01 /* free (not on any list) */
76 #define NPCB_CONNECTED 0x02 /* connected */
77 #define NPCB_IP 0x04 /* used by IP */
78 #define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */
79
80 /* flag arg to npcb_free */
81 #define NPCB_REMOVE 0 /* remove from global list */
82 #define NPCB_DESTROY 1 /* destroy and be free */
83
84 LIST_HEAD(npcblist, natmpcb);
85
86 /* global data structures */
87
88 extern struct mtx natm_mtx; /* global netnatm lock */
89 extern struct npcblist natm_pcbs; /* global list of pcbs */
90 #define NATM_STAT
91 #ifdef NATM_STAT
92 extern u_int natm_sodropcnt;
93 extern u_int natm_sodropbytes; /* account of droppage */
94 extern u_int natm_sookcnt;
95 extern u_int natm_sookbytes; /* account of ok */
96 #endif
97
98 /* locking macros */
99 #define NATM_LOCK_INIT() mtx_init(&natm_mtx, "natm_mtx", NULL, MTX_DEF)
100 #define NATM_LOCK() mtx_lock(&natm_mtx)
101 #define NATM_UNLOCK() mtx_unlock(&natm_mtx)
102 #define NATM_LOCK_ASSERT() mtx_assert(&natm_mtx, MA_OWNED)
103
104 /* external functions */
105
106 /* natm_pcb.c */
107 struct natmpcb *npcb_alloc(int);
108 void npcb_free(struct natmpcb *, int);
109 struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t);
110
111 /* natm.c */
112 extern struct pr_usrreqs natm_usrreqs;
113
114 #ifdef SYSCTL_HANDLER_ARGS
115 int natm0_sysctl(SYSCTL_HANDLER_ARGS);
116 int natm5_sysctl(SYSCTL_HANDLER_ARGS);
117 #endif
118
119 void natmintr(struct mbuf *);
120
121 #endif
Cache object: 7a8d3c2749c356a2cc77bc04bb9f41df
|