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_ */