xref: /freebsd/sys/fs/nfsclient/nfsmount.h (revision bb15ca603fa442c72dde3f3cb8b46db6970e3950)
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_negnametimeo;	/* timeout for -ve entries (sec) */
70 
71 	/* Newnfs additions */
72 	struct	nfsclclient *nm_clp;
73 	uid_t	nm_uid;			/* Uid for SetClientID etc. */
74 	u_int64_t nm_clval;		/* identifies which clientid */
75 	u_int64_t nm_fsid[2];		/* NFSv4 fsid */
76 	u_int16_t nm_krbnamelen;	/* Krb5 host principal, if any */
77 	u_int16_t nm_dirpathlen;	/* and mount dirpath, for V4 */
78 	u_int16_t nm_srvkrbnamelen;	/* and the server's target name */
79 	u_char	nm_name[1];	/* malloc'd actual len of krbname + dirpath */
80 };
81 
82 #define	nm_nam		nm_sockreq.nr_nam
83 #define	nm_sotype	nm_sockreq.nr_sotype
84 #define	nm_so		nm_sockreq.nr_so
85 #define	nm_soflags	nm_sockreq.nr_soflags
86 #define	nm_soproto	nm_sockreq.nr_soproto
87 #define	nm_client	nm_sockreq.nr_client
88 #define	nm_krbname	nm_name
89 #define	nm_mtx		nm_com.nmcom_mtx
90 #define	nm_flag		nm_com.nmcom_flag
91 #define	nm_state	nm_com.nmcom_state
92 #define	nm_mountp	nm_com.nmcom_mountp
93 #define	nm_timeo	nm_com.nmcom_timeo
94 #define	nm_retry	nm_com.nmcom_retry
95 #define	nm_hostname	nm_com.nmcom_hostname
96 #define	nm_getinfo	nm_com.nmcom_getinfo
97 #define	nm_vinvalbuf	nm_com.nmcom_vinvalbuf
98 
99 #define	NFSMNT_DIRPATH(m)	(&((m)->nm_name[(m)->nm_krbnamelen + 1]))
100 #define	NFSMNT_SRVKRBNAME(m)						\
101 	(&((m)->nm_name[(m)->nm_krbnamelen + (m)->nm_dirpathlen + 2]))
102 
103 #if defined(_KERNEL)
104 /*
105  * Convert mount ptr to nfsmount ptr.
106  */
107 #define	VFSTONFS(mp)	((struct nfsmount *)((mp)->mnt_data))
108 
109 #ifndef NFS_DEFAULT_NEGNAMETIMEO
110 #define NFS_DEFAULT_NEGNAMETIMEO	60
111 #endif
112 
113 #endif	/* _KERNEL */
114 
115 #endif	/* _NFSCLIENT_NFSMOUNT_H_ */
116