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1c79356b 1/*
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2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
8ad349bb 4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b 5 *
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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the
10 * License may not be used to create, or enable the creation or
11 * redistribution of, unlawful or unlicensed copies of an Apple operating
12 * system, or to circumvent, violate, or enable the circumvention or
13 * violation of, any terms of an Apple operating system software license
14 * agreement.
15 *
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this
18 * file.
19 *
20 * The Original Code and all software distributed under the License are
21 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
22 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
23 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
25 * Please see the License for the specific language governing rights and
26 * limitations under the License.
27 *
28 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
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29 */
30/*
31 *
32 * ORIGINS: 82
33 *
34 * (C) COPYRIGHT Apple Computer, Inc. 1992-1996
35 * All Rights Reserved
36 *
37 */
38
39/* Miscellaneous definitions for AppleTalk used by all protocol
40 * modules.
41 */
42
43#ifndef _NETAT_APPLETALK_H_
44#define _NETAT_APPLETALK_H_
9bccf70c 45#include <sys/appleapiopts.h>
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46
47#include <sys/types.h>
48#include <sys/uio.h>
49
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50#ifdef __APPLE_API_OBSOLETE
51
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52/*
53 Non-aligned types are used in packet headers.
54*/
55
56/* New fundemental types: non-aligned variations of u_short and u_long */
57typedef u_char ua_short[2]; /* Unaligned short */
58typedef u_char ua_long[4]; /* Unaligned long */
59
60/* Two at_net typedefs; the first is aligned the other isn't */
61typedef u_short at_net_al; /* Aligned AppleTalk network number */
62typedef ua_short at_net_unal; /* Unaligned AppleTalk network number */
63
64/* Miscellaneous types */
65typedef u_char at_node; /* AppleTalk node number */
66typedef u_char at_socket; /* AppleTalk socket number */
67
68typedef at_net_unal at_net; /* Default: Unaligned AppleTalk network number */
69struct atalk_addr {
70 u_char atalk_unused;
71 at_net atalk_net;
72 at_node atalk_node;
73};
74
75/* Macros to manipulate unaligned fields */
76#define UAS_ASSIGN(x,s) *(unsigned short *) &(x[0]) = (unsigned short) (s)
77#define UAS_UAS(x,y) *(unsigned short *) &(x[0]) = *(unsigned short *) &(y[0])
78#define UAS_VALUE(x) (*(unsigned short *) &(x[0]))
79#define UAL_ASSIGN(x,l) *(unsigned long *) &(x[0]) = (unsigned long) (l)
80#define UAL_UAL(x,y) *(unsigned long *) &(x[0]) = *(unsigned long *) &(y[0])
81#define UAL_VALUE(x) (*(unsigned long *) &(x[0]))
82
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83/* Macros to assign unaligned fields with byte swapping */
84#define UAS_ASSIGN_HTON(x,s) *(unsigned short *) &(x[0]) = htons((unsigned short) (s))
85#define UAS_ASSIGN_NTOH(x,s) *(unsigned short *) &(x[0]) = ntohs((unsigned short) (s))
86#define UAS_VALUE_HTON(x) htons((*(unsigned short *) &(x[0])))
87#define UAS_VALUE_NTOH(x) ntohs((*(unsigned short *) &(x[0])))
88#define UAL_ASSIGN_HTON(x,l) *(unsigned long *) &(x[0]) = htonl((unsigned long) (l))
89#define UAL_ASSIGN_NTOH(x,l) *(unsigned long *) &(x[0]) = ntohl((unsigned long) (l))
90#define UAL_VALUE_HTON(x) htonl((*(unsigned long *) &(x[0])))
91#define UAL_VALUE_NTOH(x) ntohl((*(unsigned long *) &(x[0])))
92
1c79356b 93/* Macros to manipulate at_net variables */
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94#define NET_ASSIGN(x,s) *(unsigned short *)&(x[0]) = htons((unsigned short)(s))
95#define NET_ASSIGN_NOSWAP(x,s) *(unsigned short *)&(x[0]) = (unsigned short)(s)
96#define NET_NET(x, y) *(unsigned short *)&(x[0]) = *(unsigned short *)&(y[0])
97#define NET_VALUE(x) ntohs((*(unsigned short *) &(x[0])))
98#define NET_VALUE_NOSWAP(x) (*(unsigned short *) &(x[0]))
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99#define ATALK_ASSIGN(a, net, node, unused ) \
100 a.atalk_unused = unused; a.atalk_node = node; NET_ASSIGN(a.atalk_net, net)
101
102#define NET_EQUAL(a, b) (NET_VALUE(a) == NET_VALUE(b))
103#define NET_NOTEQ(a, b) (NET_VALUE(a) != NET_VALUE(b))
104#define NET_EQUAL0(a) (NET_VALUE(a) == 0)
105#define NET_NOTEQ0(a) (NET_VALUE(a) != 0)
106
107
108/*
109 AppleTalk Internet Address
110*/
111
112typedef struct at_inet {
113 u_short net; /* Network Address */
114 u_char node; /* Node number */
115 u_char socket; /* Socket number */
116} at_inet_t;
117
118/*
119 DDP Address for OT
120*/
121
122typedef struct ddp_addr {
123 at_inet_t inet;
124 u_short ddptype;
125} ddp_addr_t;
126
127/*
128 AppleTalk address
129*/
130
131struct at_addr {
132 u_short s_net; /* 16-bit network address */
133 u_char s_node; /* 8-bit node # (1-0xfd) */
134};
135
136/*
137 Appletalk sockaddr definition
138*/
139struct sockaddr_at {
140 u_char sat_len; /* total length */
141 u_char sat_family; /* address family (AF_APPLETALK) */
142 u_char sat_port; /* 8-bit "socket number" */
143 struct at_addr sat_addr; /* 16-bit "net" and 8-bit "node */
144 char sat_zero[8]; /* used for netrange in netatalk */
145};
146
147#define ATADDR_ANYNET (u_short)0x0000
148#define ATADDR_ANYNODE (u_char)0x00
149#define ATADDR_ANYPORT (u_char)0x00
150
151#define ATADDR_BCASTNODE (u_char)0xff /* There is no BCAST for NET */
152
153/* make sure the net, node and socket numbers are in legal range :
154 *
155 * Net# 0 Local Net
156 * 1 - 0xfffe Legal net nos
157 * 0xffff Reserved by Apple for future use.
158 * Node# 0 Illegal
159 * 1 - 0x7f Legal (user node id's)
160 * 0x80 - 0xfe Legal (server node id's; 0xfe illegal in
161 * Phase II nodes)
162 * 0xff Broadcast
163 * Socket# 0 Illegal
164 * 1 - 0xfe Legal
165 * 0xff Illegal
166 */
167#define valid_at_addr(addr) \
168 ((!(addr) || (addr)->net == 0xffff || (addr)->node == 0 || \
169 (addr)->socket == 0 || (addr)->socket == 0xff)? 0: 1)
170
171/*** * ETHERTYPE_ definitions are in netinet/if_ether.h *** */
172#define ETHERTYPE_AT 0x809B /* AppleTalk protocol */
173#define ETHERTYPE_AARP 0x80F3 /* AppleTalk ARP */
174
175/*
176 DDP protocol types
177*/
178
179#define DDP_RTMP 0x01
180#define DDP_NBP 0x02
181#define DDP_ATP 0x03
182#define DDP_ECHO 0x04
183#define DDP_RTMP_REQ 0x05
184#define DDP_ZIP 0x06
185#define DDP_ADSP 0x07
186
187/*
188 Protocols for the socket API
189*/
190
191#define ATPROTO_NONE 0 /* no corresponding DDP type exists */
192
193#define ATPROTO_ATP DDP_ATP /* must match DDP type */
194#define ATPROTO_ADSP DDP_ADSP /* must match DDP type */
195
196#define ATPROTO_DDP 249 /* *** to be eliminated eventually *** */
197#define ATPROTO_LAP 250 /* *** to be eliminated eventually *** */
198
199#define ATPROTO_AURP 251 /* no corresponding DDP type exists */
200#define ATPROTO_ASP 252 /* no corresponding DDP type exists */
201#define ATPROTO_AFP 253 /* no corresponding DDP type exists */
202
203#define ATPROTO_RAW 255 /* no corresponding DDP type exists */
204
205/*
206 Options for use with [gs]etsockopt at the DDP level.
207 First word of comment is data type; bool is stored in int.
208*/
209#define DDP_CHKSUM_ON 1 /* int; default = FALSE;
210 DDP checksums should be used */
211#define DDP_HDRINCL 2 /* int; default = FALSE;
212 header is included with data */
213#define DDP_GETSOCKNAME 3 /* used to get ddp_addr_t */
214#define DDP_SLFSND_ON 4 /* int; default = FALSE;
215 packets sent to the cable-multicast address
216 on this socket will be looped back */
217#define DDP_STRIPHDR 5 /* int; default = FALSE;
218 drop DDP header on receive (raw) */
219
220/*
221 AppleTalk protocol retry and timeout
222*/
223
224typedef struct at_retry {
225 short interval; /* Retry interval in seconds */
226 short retries; /* Maximum number of retries */
227 u_char backoff; /* Retry backoff, must be 1 through 4 */
228} at_retry_t;
229
230/*
231 Basic NBP Definitions needed for AppleTalk framework
232*/
233
234#define MAX_ZONES 50
235
236#define NBP_NVE_STR_SIZE 32 /* Maximum NBP tuple string size */
237typedef struct at_nvestr {
238 u_char len;
239 u_char str[NBP_NVE_STR_SIZE];
240} at_nvestr_t;
241
242/* Entity Name */
243typedef struct at_entity {
244 at_nvestr_t object;
245 at_nvestr_t type;
246 at_nvestr_t zone;
247} at_entity_t;
248
249#define NBP_TUPLE_SIZE ((3*NBP_NVE_STR_SIZE)+3)
250 /* 3 for field lengths + 3*32 for three names */
251typedef struct at_nbptuple {
252 at_inet_t enu_addr;
253 u_char enu_enum;
254 at_entity_t enu_entity;
255} at_nbptuple_t;
256
257/*
258 Basic ATP Definitions needed for LibcAT
259*/
260
261#define ATP_TRESP_MAX 8 /* Maximum number of Tresp pkts */
262
263/* Response buffer structure for atp_sendreq() and atp_sendrsp() */
264typedef struct at_resp {
265 u_char bitmap; /* Bitmap of responses */
266 u_char filler[3]; /* Force 68K to RISC alignment */
267 struct iovec resp[ATP_TRESP_MAX]; /* Buffer for response data */
268 long userdata[ATP_TRESP_MAX]; /* Buffer for response user data */
269} at_resp_t;
270
271/*
272 Needed for ASP and ADSP
273*/
274
275typedef struct {
276 int maxlen; /* max buffer length */
277 int len; /* length of data */
278 char *buf; /* pointer to buffer */
279} strbuf_t;
280
281#define IFID_HOME 1 /* home port in ifID_table */
282
283#define ATALK_VALUE(a) ((*(u_long *) &(a))&0x00ffffff)
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284
285#define VERSION_LENGTH 80 /* length of version string */
286
287/* struture containing general information regarding the state of
288 * the Appletalk networking
289 */
290typedef struct at_state {
291 unsigned int flags; /* various init flags */
292} at_state_t;
293
294/* at_state_t 'flags' defines */
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295#define AT_ST_STARTED 0x0001 /* set if protocol is fully enabled */
296#define AT_ST_STARTING 0x0002 /* set if interfaces are configured */
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297#define AT_ST_MULTIHOME 0x0080 /* set if multihome mode */
298#define AT_ST_ROUTER 0x0100 /* set if we are a router */
299#define AT_ST_IF_CHANGED 0x0200 /* set when state of any I/F
300 changes (for SNMP) */
301#define AT_ST_RT_CHANGED 0x0400 /* route table changed (for SNMP)*/
302#define AT_ST_ZT_CHANGED 0x0800 /* zone table changed (for SNMP) */
303#define AT_ST_NBP_CHANGED 0x1000 /* if nbp table changed (for SNMP)*/
304
91447636 305#ifdef KERNEL_PRIVATE
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306extern at_state_t at_state; /* global state of AT network */
307
308#define ROUTING_MODE (at_state.flags & AT_ST_ROUTER)
309#define MULTIHOME_MODE (at_state.flags & AT_ST_MULTIHOME)
310#define MULTIPORT_MODE (ROUTING_MODE || MULTIHOME_MODE)
91447636 311#endif /* KERNEL_PRIVATE */
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312
313/* defines originally from h/at_elap.h */
314#define AT_ADDR 0
315#define ET_ADDR 1
316#define AT_ADDR_NO_LOOP 2 /* disables packets from looping back */
317
91447636 318#endif /* __APPLE_API_OBSOLETE */
1c79356b 319#endif /* _NETAT_APPLETALK_H_ */