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 * 3. 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 * This macro can only be safely used when the NFSLOCKMNT() lock is held. 116 * The inline function can be used when the lock isn't held. 117 */ 118 #define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess)) 119 120 static __inline struct nfsclsession * 121 nfsmnt_mdssession(struct nfsmount *nmp) 122 { 123 struct nfsclsession *tsep; 124 125 mtx_lock(&nmp->nm_mtx); 126 tsep = NFSMNT_MDSSESSION(nmp); 127 mtx_unlock(&nmp->nm_mtx); 128 return (tsep); 129 } 130 131 #ifndef NFS_DEFAULT_NAMETIMEO 132 #define NFS_DEFAULT_NAMETIMEO 60 133 #endif 134 135 #ifndef NFS_DEFAULT_NEGNAMETIMEO 136 #define NFS_DEFAULT_NEGNAMETIMEO 60 137 #endif 138 139 #endif /* _KERNEL */ 140 141 #endif /* _NFSCLIENT_NFSMOUNT_H_ */ 142