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      1 /*	$NetBSD: nfsmount.h,v 1.3 2016/12/13 22:17:33 pgoyette Exp $	*/
      2 /*-
      3  * Copyright (c) 1989, 1993
      4  *	The Regents of the University of California.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Rick Macklem at The University of Guelph.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  * FreeBSD: head/sys/fs/nfsclient/nfsmount.h 244042 2012-12-08 22:52:39Z rmacklem
     34  * $NetBSD: nfsmount.h,v 1.3 2016/12/13 22:17:33 pgoyette Exp $
     35  */
     36 
     37 #ifndef _NFSCLIENT_NFSMOUNT_H_
     38 #define	_NFSCLIENT_NFSMOUNT_H_
     39 
     40 #include <fs/nfs/common/nfs_mountcommon.h>
     41 
     42 /*
     43  * Mount structure.
     44  * One allocated on every NFS mount.
     45  * Holds NFS specific information for mount.
     46  */
     47 struct	nfsmount {
     48 	struct	nfsmount_common nm_com;	/* Common fields for nlm */
     49 	int	nm_numgrps;		/* Max. size of groupslist */
     50 	u_char	nm_fh[NFSX_FHMAX];	/* File handle of root dir */
     51 	int	nm_fhsize;		/* Size of root file handle */
     52 	struct	nfssockreq nm_sockreq;	/* Socket Info */
     53 	int	nm_timeouts;		/* Request timeouts */
     54 	int	nm_rsize;		/* Max size of read rpc */
     55 	int	nm_wsize;		/* Max size of write rpc */
     56 	int	nm_readdirsize;		/* Size of a readdir rpc */
     57 	int	nm_readahead;		/* Num. of blocks to readahead */
     58 	int	nm_wcommitsize;		/* Max size of commit for write */
     59 	int	nm_acdirmin;		/* Directory attr cache min lifetime */
     60 	int	nm_acdirmax;		/* Directory attr cache max lifetime */
     61 	int	nm_acregmin;		/* Reg file attr cache min lifetime */
     62 	int	nm_acregmax;		/* Reg file attr cache max lifetime */
     63 	u_char	nm_verf[NFSX_VERF];	/* write verifier */
     64 	TAILQ_HEAD(, buf) nm_bufq;	/* async io buffer queue */
     65 	short	nm_bufqlen;		/* number of buffers in queue */
     66 	short	nm_bufqwant;		/* process wants to add to the queue */
     67 	int	nm_bufqiods;		/* number of iods processing queue */
     68 	u_int64_t nm_maxfilesize;	/* maximum file size */
     69 	int	nm_tprintf_initial_delay; /* initial delay */
     70 	int	nm_tprintf_delay;	/* interval for messages */
     71 	int	nm_nametimeo;		/* timeout for +ve entries (sec) */
     72 	int	nm_negnametimeo;	/* timeout for -ve entries (sec) */
     73 
     74 	/* Newnfs additions */
     75 	TAILQ_HEAD(, nfsclds) nm_sess;	/* Session(s) for NFSv4.1. */
     76 	struct	nfsclclient *nm_clp;
     77 	uid_t	nm_uid;			/* Uid for SetClientID etc. */
     78 	u_int64_t nm_clval;		/* identifies which clientid */
     79 	u_int64_t nm_fsid[2];		/* NFSv4 fsid */
     80 	int	nm_minorvers;		/* Minor version # for NFSv4 */
     81 	u_int16_t nm_krbnamelen;	/* Krb5 host principal, if any */
     82 	u_int16_t nm_dirpathlen;	/* and mount dirpath, for V4 */
     83 	u_int16_t nm_srvkrbnamelen;	/* and the server's target name */
     84 	u_char	nm_name[1];	/* malloc'd actual len of krbname + dirpath */
     85 };
     86 
     87 #define	nm_nam		nm_sockreq.nr_nam
     88 #define	nm_sotype	nm_sockreq.nr_sotype
     89 #define	nm_so		nm_sockreq.nr_so
     90 #define	nm_soflags	nm_sockreq.nr_soflags
     91 #define	nm_soproto	nm_sockreq.nr_soproto
     92 #define	nm_client	nm_sockreq.nr_client
     93 #define	nm_krbname	nm_name
     94 #define	nm_mtx		nm_com.nmcom_mtx
     95 #define	nm_flag		nm_com.nmcom_flag
     96 #define	nm_state	nm_com.nmcom_state
     97 #define	nm_mountp	nm_com.nmcom_mountp
     98 #define	nm_timeo	nm_com.nmcom_timeo
     99 #define	nm_retry	nm_com.nmcom_retry
    100 #define	nm_hostname	nm_com.nmcom_hostname
    101 #define	nm_getinfo	nm_com.nmcom_getinfo
    102 #define	nm_vinvalbuf	nm_com.nmcom_vinvalbuf
    103 
    104 #define	NFSMNT_DIRPATH(m)	(&((m)->nm_name[(m)->nm_krbnamelen + 1]))
    105 #define	NFSMNT_SRVKRBNAME(m)						\
    106 	(&((m)->nm_name[(m)->nm_krbnamelen + (m)->nm_dirpathlen + 2]))
    107 
    108 #if defined(_KERNEL)
    109 /*
    110  * Convert mount ptr to nfsmount ptr.
    111  */
    112 #define	VFSTONFS(mp)	((struct nfsmount *)((mp)->mnt_data))
    113 
    114 /*
    115  * Get a pointer to the MDS session, which is always the first element
    116  * in the list.
    117  */
    118 #define	NFSMNT_MDSSESSION(m)	(&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess))
    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	/* _KERNEL */
    129 
    130 #endif	/* _NFSCLIENT_NFSMOUNT_H_ */
    131