1 | /* $NetBSD: if_atm.h,v 1.21 2016/04/28 00:16:56 ozaki-r Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1996 Charles D. Cranor and Washington University. |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | */ |
27 | |
28 | /* |
29 | * net/if_atm.h |
30 | */ |
31 | |
32 | #ifndef _NET_IF_ATM_H_ |
33 | #define _NET_IF_ATM_H_ |
34 | |
35 | #include <sys/ioccom.h> |
36 | |
37 | #if (defined(__FreeBSD__) || defined(__bsdi__)) && defined(KERNEL) |
38 | #ifndef _KERNEL |
39 | #define _KERNEL |
40 | #endif |
41 | #endif /* freebsd doesn't define _KERNEL */ |
42 | |
43 | #ifndef NO_ATM_PVCEXT |
44 | /* |
45 | * ATM_PVCEXT enables PVC extension: VP/VC shaping |
46 | * and PVC shadow interfaces. |
47 | */ |
48 | #define ATM_PVCEXT /* enable pvc extension */ |
49 | #endif |
50 | |
51 | #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) |
52 | #define RTALLOC1(A,B) rtalloc1((A),(B)) |
53 | #elif defined(__FreeBSD__) |
54 | #define RTALLOC1(A,B) rtalloc1((A),(B),0UL) |
55 | #endif |
56 | |
57 | /* |
58 | * pseudo header for packet transmission |
59 | */ |
60 | |
61 | struct atm_pseudohdr { |
62 | uint8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */ |
63 | }; |
64 | |
65 | #define ATM_PH_FLAGS(X) ((X)->atm_ph[0]) |
66 | #define ATM_PH_VPI(X) ((X)->atm_ph[1]) |
67 | #define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3])) |
68 | #define ATM_PH_SETVCI(X,V) { \ |
69 | (X)->atm_ph[2] = ((V) >> 8) & 0xff; \ |
70 | (X)->atm_ph[3] = ((V) & 0xff); \ |
71 | } |
72 | |
73 | #define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */ |
74 | #define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */ |
75 | |
76 | #ifdef ATM_PVCEXT |
77 | #define ATM_PH_INERNAL 0x20 /* reserve for kernel internal use */ |
78 | #endif |
79 | #define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */ |
80 | #define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */ |
81 | |
82 | #define ATMMTU 9180 /* ATM MTU size for IP */ |
83 | /* XXX: could be 9188 with LLC/SNAP according |
84 | to comer */ |
85 | |
86 | /* user's ioctl hook for raw atm mode */ |
87 | #define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */ |
88 | |
89 | /* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */ |
90 | struct atm_pseudoioctl { |
91 | struct atm_pseudohdr aph; |
92 | void *rxhand; |
93 | }; |
94 | #define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */ |
95 | #define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */ |
96 | |
97 | #ifdef ATM_PVCEXT |
98 | |
99 | /* structure to control PVC transmitter */ |
100 | struct pvctxreq { |
101 | /* first entry must be compatible with struct ifreq */ |
102 | char pvc_ifname[IFNAMSIZ]; /* if name, e.g. "en0" */ |
103 | struct atm_pseudohdr pvc_aph; /* (flags) + vpi:vci */ |
104 | struct atm_pseudohdr pvc_joint; /* for vp shaping: another vc |
105 | to share the shaper */ |
106 | int pvc_pcr; /* peak cell rate (shaper value) */ |
107 | }; |
108 | |
109 | /* use ifioctl for now */ |
110 | #define SIOCSPVCTX _IOWR('i', 95, struct pvctxreq) |
111 | #define SIOCGPVCTX _IOWR('i', 96, struct pvctxreq) |
112 | #define SIOCSPVCSIF _IOWR('i', 97, struct ifreq) |
113 | #define SIOCGPVCSIF _IOWR('i', 98, struct ifreq) |
114 | |
115 | #endif /* ATM_PVCEXT */ |
116 | |
117 | /* |
118 | * XXX forget all the garbage in if_llc.h and do it the easy way |
119 | */ |
120 | |
121 | #define ATMLLC_HDR "\252\252\3\0\0\0" |
122 | struct atmllc { |
123 | uint8_t llchdr[6]; /* aa.aa.03.00.00.00 */ |
124 | uint8_t type[2]; /* "ethernet" type */ |
125 | } __packed; |
126 | |
127 | /* ATM_LLC macros: note type code in host byte order */ |
128 | #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1])) |
129 | #define ATM_LLC_SETTYPE(X,V) { \ |
130 | (X)->type[0] = ((V) >> 8) & 0xff; \ |
131 | (X)->type[1] = ((V) & 0xff); \ |
132 | } |
133 | |
134 | #ifdef _KERNEL |
135 | void atm_ifattach(struct ifnet *); |
136 | void atm_input(struct ifnet *, struct atm_pseudohdr *, |
137 | struct mbuf *, void *); |
138 | int atm_output(struct ifnet *, struct mbuf *, const struct sockaddr *, |
139 | const struct rtentry *); |
140 | #endif |
141 | #ifdef ATM_PVCEXT |
142 | #ifdef _KERNEL |
143 | #include <sys/queue.h> |
144 | /* |
145 | * ATM PVC subinterface: a trick to assign a subinterface |
146 | * to a PVC. |
147 | * with a pvc subinterface, each PVC looks like an individual |
148 | * Point-to-Point interface. |
149 | * as opposed to the NBMA model, a pvc subinterface is inherently |
150 | * multicast capable (no LANE/MARS required). |
151 | */ |
152 | struct pvcsif { |
153 | /* |
154 | * The ifnet struct _must_ be at the head of this structure. |
155 | */ |
156 | struct ifnet sif_if; /* ifnet structure per pvc */ |
157 | struct atm_pseudohdr sif_aph; /* flags + vpi:vci */ |
158 | int sif_vci; /* vci no */ |
159 | LIST_ENTRY(pvcsif) sif_links; |
160 | }; |
161 | struct ifnet *pvcsif_alloc(void); |
162 | #endif |
163 | #endif /* ATM_PVCEXT */ |
164 | #endif /* !_NET_IF_ATM_H_ */ |
165 | |