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/nfsclient/nfsmount.h

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    1 /*-
    2  * Copyright (c) 1989, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * This code is derived from software contributed to Berkeley by
    6  * Rick Macklem at The University of Guelph.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 4. Neither the name of the University nor the names of its 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 REGENTS 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 REGENTS 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  *      @(#)nfsmount.h  8.3 (Berkeley) 3/30/95
   33  * $FreeBSD: releng/10.4/sys/nfsclient/nfsmount.h 248255 2013-03-13 21:06:03Z jhb $
   34  */
   35 
   36 #ifndef _NFSCLIENT_NFSMOUNT_H_
   37 #define _NFSCLIENT_NFSMOUNT_H_
   38 
   39 #include <sys/socket.h>
   40 
   41 #include <nfs/nfs_mountcommon.h>
   42 
   43 #include <rpc/types.h>
   44 #include <rpc/auth.h>
   45 #include <rpc/clnt.h>
   46 #include <rpc/rpcsec_gss.h>
   47 
   48 /*
   49  * Mount structure.
   50  * One allocated on every NFS mount.
   51  * Holds NFS specific information for mount.
   52  */
   53 struct  nfsmount {
   54         struct  nfsmount_common nm_com; /* Common fields for nlm */
   55         int     nm_numgrps;             /* Max. size of groupslist */
   56         u_char  nm_fh[NFSX_V4FH];       /* File handle of root dir */
   57         int     nm_fhsize;              /* Size of root file handle */
   58         int     nm_sotype;              /* Type of socket */
   59         int     nm_soproto;             /* and protocol */
   60         int     nm_soflags;             /* pr_flags for socket protocol */
   61         struct  sockaddr *nm_nam;       /* Addr of server */
   62         int     nm_deadthresh;          /* Threshold of timeouts-->dead server*/
   63         int     nm_rsize;               /* Max size of read rpc */
   64         int     nm_wsize;               /* Max size of write rpc */
   65         int     nm_readdirsize;         /* Size of a readdir rpc */
   66         int     nm_readahead;           /* Num. of blocks to readahead */
   67         int     nm_wcommitsize;         /* Max size of commit for write */
   68         int     nm_acdirmin;            /* Directory attr cache min lifetime */
   69         int     nm_acdirmax;            /* Directory attr cache max lifetime */
   70         int     nm_acregmin;            /* Reg file attr cache min lifetime */
   71         int     nm_acregmax;            /* Reg file attr cache max lifetime */
   72         u_char  nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
   73         TAILQ_HEAD(, buf) nm_bufq;      /* async io buffer queue */
   74         short   nm_bufqlen;             /* number of buffers in queue */
   75         short   nm_bufqwant;            /* process wants to add to the queue */
   76         int     nm_bufqiods;            /* number of iods processing queue */
   77         u_int64_t nm_maxfilesize;       /* maximum file size */
   78         struct nfs_rpcops *nm_rpcops;
   79         int     nm_tprintf_initial_delay;       /* initial delay */
   80         int     nm_tprintf_delay;               /* interval for messages */
   81         int     nm_secflavor;            /* auth flavor to use for rpc */
   82         struct __rpc_client *nm_client;
   83         struct rpc_timers nm_timers[NFS_MAX_TIMER]; /* RTT Timers for rpcs */
   84         char    nm_principal[MNAMELEN]; /* GSS-API principal of server */
   85         gss_OID nm_mech_oid;            /* OID of selected GSS-API mechanism */
   86         int     nm_nametimeo;           /* timeout for +ve entries (sec) */
   87         int     nm_negnametimeo;        /* timeout for -ve entries (sec) */
   88 
   89         /* NFSv4 */
   90         uint64_t nm_clientid;
   91         fsid_t  nm_fsid;
   92         u_int   nm_lease_time;
   93         time_t  nm_last_renewal;
   94 };
   95 
   96 #define nm_mtx          nm_com.nmcom_mtx
   97 #define nm_flag         nm_com.nmcom_flag
   98 #define nm_state        nm_com.nmcom_state
   99 #define nm_mountp       nm_com.nmcom_mountp
  100 #define nm_timeo        nm_com.nmcom_timeo
  101 #define nm_retry        nm_com.nmcom_retry
  102 #define nm_hostname     nm_com.nmcom_hostname
  103 #define nm_getinfo      nm_com.nmcom_getinfo
  104 #define nm_vinvalbuf    nm_com.nmcom_vinvalbuf
  105 
  106 #if defined(_KERNEL)
  107 /*
  108  * Convert mount ptr to nfsmount ptr.
  109  */
  110 #define VFSTONFS(mp)    ((struct nfsmount *)((mp)->mnt_data))
  111 
  112 #ifndef NFS_TPRINTF_INITIAL_DELAY
  113 #define NFS_TPRINTF_INITIAL_DELAY       12
  114 #endif
  115 
  116 #ifndef NFS_TPRINTF_DELAY
  117 #define NFS_TPRINTF_DELAY               30
  118 #endif
  119 
  120 #ifndef NFS_DEFAULT_NAMETIMEO
  121 #define NFS_DEFAULT_NAMETIMEO           60
  122 #endif
  123 
  124 #ifndef NFS_DEFAULT_NEGNAMETIMEO
  125 #define NFS_DEFAULT_NEGNAMETIMEO        60
  126 #endif
  127 
  128 #endif
  129 
  130 #endif

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