xref: /freebsd/sys/netsmb/smb_trantcp.h (revision 8fc257994d0ce2396196d7a06d50d20c8015f4b7)
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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 #ifndef _NETSMB_SMB_TRANTCP_H_
29 #define	_NETSMB_SMB_TRANTCP_H_
30 
31 #ifdef _KERNEL
32 
33 #ifdef NB_DEBUG
34 #define NBDEBUG(format, args...)	 printf("%s(%d): "format,	\
35 					    __func__ , __LINE__ ,## args)
36 #else
37 #define NBDEBUG(format, args...)
38 #endif
39 
40 enum nbstate {
41 	NBST_CLOSED,
42 	NBST_RQSENT,
43 	NBST_SESSION,
44 	NBST_RETARGET,
45 	NBST_REFUSED
46 };
47 
48 
49 /*
50  * socket specific data
51  */
52 struct nbpcb {
53 	struct smb_vc *	nbp_vc;
54 	struct socket *	nbp_tso;	/* transport socket */
55 	struct sockaddr_nb *nbp_laddr;	/* local address */
56 	struct sockaddr_nb *nbp_paddr;	/* peer address */
57 
58 	int		nbp_flags;
59 #define	NBF_LOCADDR	0x0001		/* has local addr */
60 #define	NBF_CONNECTED	0x0002
61 #define	NBF_RECVLOCK	0x0004
62 
63 	enum nbstate	nbp_state;
64 	struct timespec	nbp_timo;
65 	int		nbp_sndbuf;
66 	int		nbp_rcvbuf;
67 	void *		nbp_selectid;
68 
69 /*	LIST_ENTRY(nbpcb) nbp_link;*/
70 };
71 
72 /*
73  * Nominal space allocated per a NETBIOS socket.
74  */
75 #define	NB_SNDQ		(64 * 1024)
76 #define	NB_RCVQ		(64 * 1024)
77 
78 /*
79  * TCP slowstart presents a problem in conjunction with large
80  * reads.  To ensure a steady stream of ACKs while reading using
81  * large transaction sizes, we call soreceive() with a smaller
82  * buffer size.  See nbssn_recv().
83  */
84 #define NB_SORECEIVE_CHUNK	(8 * 1024)
85 
86 extern struct smb_tran_desc smb_tran_nbtcp_desc;
87 
88 #endif /* _KERNEL */
89 
90 #endif /* !_NETSMB_SMB_TRANTCP_H_ */
91