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  * 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: releng/10.1/sys/netsmb/smb_trantcp.h 206361 2010-04-07 16:50:38Z joel $
   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_ */

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