xref: /freebsd/sys/netsmb/netbios.h (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2000-2001 Boris Popov
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 AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 #ifndef _NETSMB_NETBIOS_H_
31 #define	_NETSMB_NETBIOS_H_
32 
33 /*
34  * make this file dirty...
35  */
36 #ifndef _NETINET_IN_H_
37 #include <netinet/in.h>
38 #endif
39 
40 #define	NMB_TCP_PORT	137
41 
42 #define	NBPROTO_TCPSSN	1		/* NETBIOS session over TCP */
43 #define	NBPROTO_IPXSSN	11		/* NETBIOS over IPX */
44 
45 #define NB_NAMELEN	16
46 #define	NB_ENCNAMELEN	NB_NAMELEN * 2
47 #define	NB_MAXLABLEN	63
48 
49 #define	NB_MINSALEN	(sizeof(struct sockaddr_nb))
50 
51 /*
52  * name types
53  */
54 #define	NBT_WKSTA		0x00
55 #define	NBT_MESSENGER		0x03
56 #define	NBT_RAS_SERVER		0x06
57 #define	NBT_DOMAIN_MASTER_BROWSER	0x1B
58 #define	NBT_DOMAIN_CONTROLLER	0x1C
59 #define	NBT_MASTER_BROWSER	0x1D
60 #define	NBT_NETDDE		0x1F
61 #define	NBT_SERVER		0x20
62 #define	NBT_RAS_CLIENT		0x21
63 
64 /*
65  * Session packet types
66  */
67 #define	NB_SSN_MESSAGE		0x0
68 #define	NB_SSN_REQUEST		0x81
69 #define	NB_SSN_POSRESP		0x82
70 #define	NB_SSN_NEGRESP		0x83
71 #define	NB_SSN_RTGRESP		0x84
72 #define	NB_SSN_KEEPALIVE	0x85
73 
74 /*
75  * resolver: Opcodes
76  */
77 #define	NBNS_OPCODE_QUERY	0x00
78 #define	NBNS_OPCODE_REGISTER	0x05
79 #define	NBNS_OPCODE_RELEASE	0x06
80 #define	NBNS_OPCODE_WACK	0x07
81 #define	NBNS_OPCODE_REFRESH	0x08
82 #define	NBNS_OPCODE_RESPONSE	0x10	/* or'ed with other opcodes */
83 
84 /*
85  * resolver: NM_FLAGS
86  */
87 #define	NBNS_NMFLAG_BCAST	0x01
88 #define	NBNS_NMFLAG_RA		0x08	/* recursion available */
89 #define	NBNS_NMFLAG_RD		0x10	/* recursion desired */
90 #define	NBNS_NMFLAG_TC		0x20	/* truncation occurred */
91 #define	NBNS_NMFLAG_AA		0x40	/* authoritative answer */
92 
93 /*
94  * resolver: Question types
95  */
96 #define	NBNS_QUESTION_TYPE_NB		0x0020
97 #define NBNS_QUESTION_TYPE_NBSTAT	0x0021
98 
99 /*
100  * resolver: Question class
101  */
102 #define NBNS_QUESTION_CLASS_IN	0x0001
103 
104 /*
105  * resolver: Limits
106  */
107 #define	NBNS_MAXREDIRECTS	3	/* maximum number of accepted redirects */
108 #define	NBDG_MAXSIZE		576	/* maximum nbns datagram size */
109 
110 /*
111  * NETBIOS addressing
112  */
113 union nb_tran {
114 	struct sockaddr_in	x_in;
115 	/* struct sockaddr_ipx was here. */
116 };
117 
118 struct nb_name {
119 	u_int		nn_type;
120 	u_char		nn_name[NB_NAMELEN + 1];
121 	u_char *	nn_scope;
122 };
123 
124 /*
125  * Socket address
126  */
127 struct sockaddr_nb {
128 	u_char		snb_len;
129 	u_char		snb_family;
130 	union nb_tran	snb_tran;		/* transport */
131 	u_char		snb_name[1 + NB_ENCNAMELEN + 1];	/* encoded */
132 };
133 
134 #define	snb_addrin	snb_tran.x_in
135 
136 #endif /* !_NETSMB_NETBIOS_H_ */
137