xref: /illumos-gate/usr/src/uts/common/fs/smbclnt/netsmb/smb_trantcp.h (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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  * $Id: smb_trantcp.h,v 1.8 2004/08/03 23:50:01 lindak Exp $
33  */
34 #ifndef _NETSMB_SMB_TRANTCP_H_
35 #define	_NETSMB_SMB_TRANTCP_H_
36 
37 #pragma ident	"%Z%%M%	%I%	%E% SMI"
38 
39 enum nbstate {
40 	NBST_CLOSED,
41 	NBST_RQSENT,
42 	NBST_SESSION,
43 	NBST_RETARGET,
44 	NBST_REFUSED
45 };
46 
47 
48 /*
49  * socket specific data
50  */
51 struct nbpcb {
52 	struct smb_vc	*nbp_vc;
53 	struct tiuser	*nbp_tiptr;	/* KTLI transport handle... */
54 	ushort_t	nbp_fmode;
55 	mblk_t		*nbp_frag;	/* left-over from last recv */
56 
57 	struct sockaddr_nb *nbp_laddr;	/* local address */
58 	struct sockaddr_nb *nbp_paddr;	/* peer address */
59 
60 	int		nbp_flags;
61 #define	NBF_LOCADDR	0x0001		/* has local addr */
62 #define	NBF_CONNECTED	0x0002
63 #define	NBF_RECVLOCK	0x0004
64 #define	NBF_UPCALLED	0x0010
65 
66 	enum nbstate	nbp_state;
67 	struct timespec	nbp_timo;
68 	int		nbp_sndbuf;
69 	int		nbp_rcvbuf;
70 	void		*nbp_selectid;
71 	kmutex_t	nbp_lock;
72 };
73 typedef struct nbpcb nbpcb_t;
74 
75 /*
76  * Nominal space allocated per a NETBIOS socket.
77  */
78 #define	NB_SNDQ		(10 * 1024)
79 #define	NB_RCVQ		(20 * 1024)
80 
81 /*
82  * TCP slowstart presents a problem in conjunction with large
83  * reads.  To ensure a steady stream of ACKs while reading using
84  * large transaction sizes, we call soreceive() with a smaller
85  * buffer size.  See nbssn_recv().
86  */
87 #define	NB_SORECEIVE_CHUNK	(8 * 1024)
88 
89 #define	SMBSBTIMO 15 /* seconds for sockbuf timeouts */
90 
91 #endif /* !_NETSMB_SMB_TRANTCP_H_ */
92