xref: /freebsd/sys/netsmb/smb_trantcp.h (revision 78704ef45793e56c8e064611c05c9bb8a0067e9f)
1 /*
2  * Copyright (c) 2000-2001, Boris Popov
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *    This product includes software developed by Boris Popov.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $FreeBSD$
33  */
34 #ifndef _NETSMB_SMB_TRANTCP_H_
35 #define	_NETSMB_SMB_TRANTCP_H_
36 
37 #ifdef _KERNEL
38 
39 #ifdef NB_DEBUG
40 #define NBDEBUG(format, args...)	 printf("%s(%d): "format,	\
41 					    __func__ , __LINE__ ,## args)
42 #else
43 #define NBDEBUG(format, args...)
44 #endif
45 
46 enum nbstate {
47 	NBST_CLOSED,
48 	NBST_RQSENT,
49 	NBST_SESSION,
50 	NBST_RETARGET,
51 	NBST_REFUSED
52 };
53 
54 
55 /*
56  * socket specific data
57  */
58 struct nbpcb {
59 	struct smb_vc *	nbp_vc;
60 	struct socket *	nbp_tso;	/* transport socket */
61 	struct sockaddr_nb *nbp_laddr;	/* local address */
62 	struct sockaddr_nb *nbp_paddr;	/* peer address */
63 
64 	int		nbp_flags;
65 #define	NBF_LOCADDR	0x0001		/* has local addr */
66 #define	NBF_CONNECTED	0x0002
67 #define	NBF_RECVLOCK	0x0004
68 
69 	enum nbstate	nbp_state;
70 	struct timespec	nbp_timo;
71 	int		nbp_sndbuf;
72 	int		nbp_rcvbuf;
73 	void *		nbp_selectid;
74 
75 /*	LIST_ENTRY(nbpcb) nbp_link;*/
76 };
77 
78 /*
79  * Nominal space allocated per a NETBIOS socket.
80  */
81 #define	NB_SNDQ		(64 * 1024)
82 #define	NB_RCVQ		(64 * 1024)
83 
84 /*
85  * TCP slowstart presents a problem in conjunction with large
86  * reads.  To ensure a steady stream of ACKs while reading using
87  * large transaction sizes, we call soreceive() with a smaller
88  * buffer size.  See nbssn_recv().
89  */
90 #define NB_SORECEIVE_CHUNK	(8 * 1024)
91 
92 extern struct smb_tran_desc smb_tran_nbtcp_desc;
93 
94 #endif /* _KERNEL */
95 
96 #endif /* !_NETSMB_SMB_TRANTCP_H_ */
97