sys/fs/nfsclient/nfsmount.h

   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  * $FreeBSD$
  33  */
  34
  35 #ifndef _NFSCLIENT_NFSMOUNT_H_
  36 #define _NFSCLIENT_NFSMOUNT_H_
  37
  38 #include <nfs/nfs_mountcommon.h>
  39
  40 /*
  41  * Mount structure.
  42  * One allocated on every NFS mount.
  43  * Holds NFS specific information for mount.
  44  */
  45 struct  nfsmount {
  46         struct  nfsmount_common nm_com; /* Common fields for nlm */
  47         int     nm_numgrps;             /* Max. size of groupslist */
  48         u_char  nm_fh[NFSX_FHMAX];      /* File handle of root dir */
  49         int     nm_fhsize;              /* Size of root file handle */
  50         struct  nfssockreq nm_sockreq;  /* Socket Info */
  51         int     nm_timeouts;            /* Request timeouts */
  52         int     nm_rsize;               /* Max size of read rpc */
  53         int     nm_wsize;               /* Max size of write rpc */
  54         int     nm_readdirsize;         /* Size of a readdir rpc */
  55         int     nm_readahead;           /* Num. of blocks to readahead */
  56         int     nm_wcommitsize;         /* Max size of commit for write */
  57         int     nm_acdirmin;            /* Directory attr cache min lifetime */
  58         int     nm_acdirmax;            /* Directory attr cache max lifetime */
  59         int     nm_acregmin;            /* Reg file attr cache min lifetime */
  60         int     nm_acregmax;            /* Reg file attr cache max lifetime */
  61         u_char  nm_verf[NFSX_VERF];     /* write verifier */
  62         TAILQ_HEAD(, buf) nm_bufq;      /* async io buffer queue */
  63         short   nm_bufqlen;             /* number of buffers in queue */
  64         short   nm_bufqwant;            /* process wants to add to the queue */
  65         int     nm_bufqiods;            /* number of iods processing queue */
  66         u_int64_t nm_maxfilesize;       /* maximum file size */
  67         int     nm_tprintf_initial_delay; /* initial delay */
  68         int     nm_tprintf_delay;       /* interval for messages */
  69         int     nm_nametimeo;           /* timeout for +ve entries (sec) */
  70         int     nm_negnametimeo;        /* timeout for -ve entries (sec) */
  71
  72         /* Newnfs additions */
  73         TAILQ_HEAD(, nfsclds) nm_sess;  /* Session(s) for NFSv4.1. */
  74         struct  nfsclclient *nm_clp;
  75         uid_t   nm_uid;                 /* Uid for SetClientID etc. */
  76         u_int64_t nm_clval;             /* identifies which clientid */
  77         u_int64_t nm_fsid[2];           /* NFSv4 fsid */
  78         int     nm_minorvers;           /* Minor version # for NFSv4 */
  79         u_int16_t nm_krbnamelen;        /* Krb5 host principal, if any */
  80         u_int16_t nm_dirpathlen;        /* and mount dirpath, for V4 */
  81         u_int16_t nm_srvkrbnamelen;     /* and the server's target name */
  82         u_char  nm_name[1];     /* malloc'd actual len of krbname + dirpath */
  83 };
  84
  85 #define nm_nam          nm_sockreq.nr_nam
  86 #define nm_sotype       nm_sockreq.nr_sotype
  87 #define nm_so           nm_sockreq.nr_so
  88 #define nm_soflags      nm_sockreq.nr_soflags
  89 #define nm_soproto      nm_sockreq.nr_soproto
  90 #define nm_client       nm_sockreq.nr_client
  91 #define nm_krbname      nm_name
  92 #define nm_mtx          nm_com.nmcom_mtx
  93 #define nm_flag         nm_com.nmcom_flag
  94 #define nm_state        nm_com.nmcom_state
  95 #define nm_mountp       nm_com.nmcom_mountp
  96 #define nm_timeo        nm_com.nmcom_timeo
  97 #define nm_retry        nm_com.nmcom_retry
  98 #define nm_hostname     nm_com.nmcom_hostname
  99 #define nm_getinfo      nm_com.nmcom_getinfo
 100 #define nm_vinvalbuf    nm_com.nmcom_vinvalbuf
 101
 102 #define NFSMNT_DIRPATH(m)       (&((m)->nm_name[(m)->nm_krbnamelen + 1]))
 103 #define NFSMNT_SRVKRBNAME(m)                                            \
 104         (&((m)->nm_name[(m)->nm_krbnamelen + (m)->nm_dirpathlen + 2]))
 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 /*
 113  * Get a pointer to the MDS session, which is always the first element
 114  * in the list.
 115  */
 116 #define NFSMNT_MDSSESSION(m)    (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess))
 117
 118 #ifndef NFS_DEFAULT_NAMETIMEO
 119 #define NFS_DEFAULT_NAMETIMEO           60
 120 #endif
 121
 122 #ifndef NFS_DEFAULT_NEGNAMETIMEO
 123 #define NFS_DEFAULT_NEGNAMETIMEO        60
 124 #endif
 125
 126 #endif  /* _KERNEL */
 127
 128 #endif  /* _NFSCLIENT_NFSMOUNT_H_ */