1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #ifndef _NFSCLIENT_NFSMOUNT_H_ 38 #define _NFSCLIENT_NFSMOUNT_H_ 39 40 #include <nfs/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 uint32_t nm_privflag; /* Private flags */ 50 int nm_numgrps; /* Max. size of groupslist */ 51 u_char nm_fh[NFSX_FHMAX]; /* File handle of root dir */ 52 int nm_fhsize; /* Size of root file handle */ 53 struct nfssockreq nm_sockreq; /* Socket Info */ 54 int nm_timeouts; /* Request timeouts */ 55 int nm_rsize; /* Max size of read rpc */ 56 int nm_wsize; /* Max size of write rpc */ 57 int nm_readdirsize; /* Size of a readdir rpc */ 58 int nm_readahead; /* Num. of blocks to readahead */ 59 int nm_wcommitsize; /* Max size of commit for write */ 60 int nm_acdirmin; /* Directory attr cache min lifetime */ 61 int nm_acdirmax; /* Directory attr cache max lifetime */ 62 int nm_acregmin; /* Reg file attr cache min lifetime */ 63 int nm_acregmax; /* Reg file attr cache max lifetime */ 64 u_char nm_verf[NFSX_VERF]; /* write verifier */ 65 TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */ 66 short nm_bufqlen; /* number of buffers in queue */ 67 short nm_bufqwant; /* process wants to add to the queue */ 68 int nm_bufqiods; /* number of iods processing queue */ 69 u_int64_t nm_maxfilesize; /* maximum file size */ 70 int nm_tprintf_initial_delay; /* initial delay */ 71 int nm_tprintf_delay; /* interval for messages */ 72 int nm_nametimeo; /* timeout for +ve entries (sec) */ 73 int nm_negnametimeo; /* timeout for -ve entries (sec) */ 74 75 /* Newnfs additions */ 76 TAILQ_HEAD(, nfsclds) nm_sess; /* Session(s) for NFSv4.1. */ 77 struct nfsclclient *nm_clp; 78 uid_t nm_uid; /* Uid for SetClientID etc. */ 79 u_int64_t nm_clval; /* identifies which clientid */ 80 u_int64_t nm_fsid[2]; /* NFSv4 fsid */ 81 int nm_minorvers; /* Minor version # for NFSv4 */ 82 u_int16_t nm_krbnamelen; /* Krb5 host principal, if any */ 83 u_int16_t nm_dirpathlen; /* and mount dirpath, for V4 */ 84 u_int16_t nm_srvkrbnamelen; /* and the server's target name */ 85 u_char nm_name[1]; /* malloc'd actual len of krbname + dirpath */ 86 }; 87 88 #define nm_nam nm_sockreq.nr_nam 89 #define nm_sotype nm_sockreq.nr_sotype 90 #define nm_so nm_sockreq.nr_so 91 #define nm_soflags nm_sockreq.nr_soflags 92 #define nm_soproto nm_sockreq.nr_soproto 93 #define nm_client nm_sockreq.nr_client 94 #define nm_krbname nm_name 95 #define nm_mtx nm_com.nmcom_mtx 96 #define nm_flag nm_com.nmcom_flag 97 #define nm_state nm_com.nmcom_state 98 #define nm_mountp nm_com.nmcom_mountp 99 #define nm_timeo nm_com.nmcom_timeo 100 #define nm_retry nm_com.nmcom_retry 101 #define nm_hostname nm_com.nmcom_hostname 102 #define nm_getinfo nm_com.nmcom_getinfo 103 #define nm_vinvalbuf nm_com.nmcom_vinvalbuf 104 105 /* Private flags. */ 106 #define NFSMNTP_FORCEDISM 0x00000001 107 #define NFSMNTP_CANCELRPCS 0x00000002 108 109 #define NFSMNT_DIRPATH(m) (&((m)->nm_name[(m)->nm_krbnamelen + 1])) 110 #define NFSMNT_SRVKRBNAME(m) \ 111 (&((m)->nm_name[(m)->nm_krbnamelen + (m)->nm_dirpathlen + 2])) 112 113 #if defined(_KERNEL) 114 /* 115 * Convert mount ptr to nfsmount ptr. 116 */ 117 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 118 119 /* 120 * Get a pointer to the MDS session, which is always the first element 121 * in the list. 122 * This macro can only be safely used when the NFSLOCKMNT() lock is held. 123 * The inline function can be used when the lock isn't held. 124 */ 125 #define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess)) 126 127 static __inline struct nfsclsession * 128 nfsmnt_mdssession(struct nfsmount *nmp) 129 { 130 struct nfsclsession *tsep; 131 132 mtx_lock(&nmp->nm_mtx); 133 tsep = NFSMNT_MDSSESSION(nmp); 134 mtx_unlock(&nmp->nm_mtx); 135 return (tsep); 136 } 137 138 #ifndef NFS_DEFAULT_NAMETIMEO 139 #define NFS_DEFAULT_NAMETIMEO 60 140 #endif 141 142 #ifndef NFS_DEFAULT_NEGNAMETIMEO 143 #define NFS_DEFAULT_NEGNAMETIMEO 60 144 #endif 145 146 #endif /* _KERNEL */ 147 148 #endif /* _NFSCLIENT_NFSMOUNT_H_ */ 149