The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netsmb/smb_trantcp.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2000-2001 Boris Popov
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: stable/12/sys/netsmb/smb_trantcp.h 326272 2017-11-27 15:23:17Z pfg $
   29  */
   30 #ifndef _NETSMB_SMB_TRANTCP_H_
   31 #define _NETSMB_SMB_TRANTCP_H_
   32 
   33 #ifdef _KERNEL
   34 
   35 #ifdef NB_DEBUG
   36 #define NBDEBUG(format, args...)         printf("%s(%d): "format,       \
   37                                             __func__ , __LINE__ ,## args)
   38 #else
   39 #define NBDEBUG(format, args...)
   40 #endif
   41 
   42 enum nbstate {
   43         NBST_CLOSED,
   44         NBST_RQSENT,
   45         NBST_SESSION,
   46         NBST_RETARGET,
   47         NBST_REFUSED
   48 };
   49 
   50 
   51 /*
   52  * socket specific data
   53  */
   54 struct nbpcb {
   55         struct smb_vc * nbp_vc;
   56         struct socket * nbp_tso;        /* transport socket */
   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 
   65         enum nbstate    nbp_state;
   66         struct timespec nbp_timo;
   67         int             nbp_sndbuf;
   68         int             nbp_rcvbuf;
   69         void *          nbp_selectid;
   70 
   71 /*      LIST_ENTRY(nbpcb) nbp_link;*/
   72 };
   73 
   74 /*
   75  * Nominal space allocated per a NETBIOS socket.
   76  */
   77 #define NB_SNDQ         (64 * 1024)
   78 #define NB_RCVQ         (64 * 1024)
   79 
   80 /*
   81  * TCP slowstart presents a problem in conjunction with large
   82  * reads.  To ensure a steady stream of ACKs while reading using
   83  * large transaction sizes, we call soreceive() with a smaller
   84  * buffer size.  See nbssn_recv().
   85  */
   86 #define NB_SORECEIVE_CHUNK      (8 * 1024)
   87 
   88 extern struct smb_tran_desc smb_tran_nbtcp_desc;
   89 
   90 #endif /* _KERNEL */
   91 
   92 #endif /* !_NETSMB_SMB_TRANTCP_H_ */

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