xref: /illumos-gate/usr/src/uts/common/fs/smbclnt/netsmb/smb_trantcp.h (revision 40c0e2317898b8c774791bdc2b30bd50111ab1fa)
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 /*
35  * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
36  */
37 #ifndef _NETSMB_SMB_TRANTCP_H_
38 #define	_NETSMB_SMB_TRANTCP_H_
39 
40 enum nbstate {
41 	NBST_CLOSED,
42 	NBST_IDLE,
43 	NBST_RQSENT,
44 	NBST_SESSION,
45 	NBST_RETARGET,
46 	NBST_REFUSED
47 };
48 
49 
50 /*
51  * socket specific data
52  */
53 struct nbpcb {
54 	struct smb_vc	*nbp_vc;
55 	struct tiuser	*nbp_tiptr;	/* KTLI transport handle... */
56 	mblk_t		*nbp_frag;	/* left-over from last recv */
57 
58 	struct sockaddr_nb *nbp_laddr;	/* local address */
59 	struct sockaddr_nb *nbp_paddr;	/* peer address */
60 	void		*nbp_selectid;
61 	cred_t		*nbp_cred;
62 
63 	int		nbp_flags;
64 #define	NBF_LOCADDR	0x0001		/* has local addr */
65 #define	NBF_CONNECTED	0x0002
66 #define	NBF_RECVLOCK	0x0004
67 #define	NBF_SENDLOCK	0x0008
68 #define	NBF_LOCKWAIT	0x0010
69 
70 	ushort_t	nbp_fmode;
71 	enum nbstate	nbp_state;
72 	struct timespec	nbp_timo;
73 	int		nbp_sndbuf;
74 	int		nbp_rcvbuf;
75 	kmutex_t	nbp_lock;
76 	kcondvar_t	nbp_cv;
77 };
78 typedef struct nbpcb nbpcb_t;
79 
80 /*
81  * Nominal space allocated per a NETBIOS socket.
82  */
83 #define	NB_SNDQ		(10 * 1024)
84 #define	NB_RCVQ		(20 * 1024)
85 
86 /*
87  * TCP slowstart presents a problem in conjunction with large
88  * reads.  To ensure a steady stream of ACKs while reading using
89  * large transaction sizes, we call soreceive() with a smaller
90  * buffer size.  See nbssn_recv().
91  */
92 #define	NB_SORECEIVE_CHUNK	(8 * 1024)
93 
94 #define	SMBSBTIMO 15 /* seconds for sockbuf timeouts */
95 
96 #endif /* !_NETSMB_SMB_TRANTCP_H_ */
97