Annotation of sys/net/if_atm.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: if_atm.h,v 1.12 2006/06/17 10:22:06 henning 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: * net/if_atm.h
37: */
38: #ifndef _NET_IF_ATM_H_
39: #define _NET_IF_ATM_H_
40:
41: #define RTALLOC1(A,B) rtalloc1((A),(B), 0)
42:
43: /*
44: * pseudo header for packet transmission
45: */
46:
47: struct atm_pseudohdr {
48: u_int8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */
49: };
50:
51: #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
52: #define ATM_PH_VPI(X) ((X)->atm_ph[1])
53: #define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
54: #define ATM_PH_SETVCI(X,V) { \
55: (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
56: (X)->atm_ph[3] = ((V) & 0xff); \
57: }
58:
59: #define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */
60: #define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */
61:
62: #define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */
63: #define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */
64:
65: #define ATMMTU 9180 /* ATM MTU size for IP */
66: /* XXX: could be 9188 with LLC/SNAP according
67: to comer */
68:
69: /* user's ioctl hook for raw atm mode */
70: #define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */
71:
72: /* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */
73: struct atm_pseudoioctl {
74: struct atm_pseudohdr aph;
75: void *rxhand;
76: };
77: #define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
78: #define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
79:
80: /*
81: * XXX forget all the garbage in if_llc.h and do it the easy way
82: */
83:
84: #define ATMLLC_HDR "\252\252\3\0\0\0"
85: struct atmllc {
86: u_int8_t llchdr[6]; /* aa.aa.03.00.00.00 */
87: u_int8_t type[2]; /* "ethernet" type */
88: };
89:
90: /* ATM_LLC macros: note type code in host byte order */
91: #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
92: #define ATM_LLC_SETTYPE(X,V) { \
93: (X)->type[0] = ((V) >> 8) & 0xff; \
94: (X)->type[1] = ((V) & 0xff); \
95: }
96:
97: #ifdef _KERNEL
98: void atm_ifattach(struct ifnet *);
99: void atm_input(struct ifnet *, struct atm_pseudohdr *,
100: struct mbuf *, void *);
101: int atm_output(struct ifnet *, struct mbuf *, struct sockaddr *,
102: struct rtentry *);
103: #endif /* _KERNEL */
104: #endif /* _NET_IF_ATM_H_ */
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