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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsnode.h 8.4 (Berkeley) 2/13/94
| 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsnode.h 8.4 (Berkeley) 2/13/94
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40/* 41 * Silly rename structure that hangs off the nfsnode until the name 42 * can be removed by nfs_inactive() 43 */ 44struct sillyrename { 45 struct ucred *s_cred; 46 struct vnode *s_dvp; 47 long s_namlen; 48 char s_name[20]; 49}; 50 51/* 52 * The nfsnode is the nfs equivalent to ufs's inode. Any similarity 53 * is purely coincidental. 54 * There is a unique nfsnode allocated for each active file, 55 * each current directory, each mounted-on file, text file, and the root. 56 * An nfsnode is 'named' by its file handle. (nget/nfs_node.c) 57 */ 58 59struct nfsnode { 60 struct nfsnode *n_forw; /* hash, forward */ 61 struct nfsnode **n_back; /* hash, backward */ 62 nfsv2fh_t n_fh; /* NFS File Handle */ 63 long n_flag; /* Flag for locking.. */ 64 struct vnode *n_vnode; /* vnode associated with this node */ 65 struct vattr n_vattr; /* Vnode attribute cache */ 66 time_t n_attrstamp; /* Time stamp for cached attributes */ 67 struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */ 68 u_quad_t n_size; /* Current size of file */ 69 struct lockf *n_lockf; /* Locking record of file */ 70 int n_error; /* Save write error value */ 71 u_long n_direofoffset; /* Dir. EOF offset cache */ 72 time_t n_mtime; /* Prev modify time. */ 73 time_t n_ctime; /* Prev create time. */ 74 u_quad_t n_brev; /* Modify rev when cached */ 75 u_quad_t n_lrev; /* Modify rev for lease */ 76 time_t n_expiry; /* Lease expiry time */ 77 struct nfsnode *n_tnext; /* Nqnfs timer chain */ 78 struct nfsnode *n_tprev; 79 struct sillyrename n_silly; /* Silly rename struct */ 80 struct timeval n_atim; /* Special file times */ 81 struct timeval n_mtim; 82}; 83 84/* 85 * Flags for n_flag 86 */ 87#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */ 88#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */ 89#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */ 90#define NWRITEERR 0x0008 /* Flag write errors so close will know */ 91#define NQNFSNONCACHE 0x0020 /* Non-cachable lease */ 92#define NQNFSWRITE 0x0040 /* Write lease */ 93#define NQNFSEVICTED 0x0080 /* Has been evicted */ 94#define NACC 0x0100 /* Special file accessed */ 95#define NUPD 0x0200 /* Special file updated */ 96#define NCHG 0x0400 /* Special file times changed */ 97 98/* 99 * Convert between nfsnode pointers and vnode pointers 100 */ 101#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data) 102#define NFSTOV(np) ((struct vnode *)(np)->n_vnode) 103 104/* 105 * Queue head for nfsiod's 106 */ 107TAILQ_HEAD(nfsbufs, buf) nfs_bufq; 108 109#ifdef KERNEL 110/* 111 * Prototypes for NFS vnode operations 112 */ 113int nfs_lookup __P((struct vop_lookup_args *)); 114int nfs_create __P((struct vop_create_args *)); 115int nfs_mknod __P((struct vop_mknod_args *)); 116int nfs_open __P((struct vop_open_args *)); 117int nfs_close __P((struct vop_close_args *)); 118int nfsspec_close __P((struct vop_close_args *)); 119#ifdef FIFO 120int nfsfifo_close __P((struct vop_close_args *)); 121#endif 122int nfs_access __P((struct vop_access_args *)); 123int nfsspec_access __P((struct vop_access_args *)); 124int nfs_getattr __P((struct vop_getattr_args *)); 125int nfs_setattr __P((struct vop_setattr_args *)); 126int nfs_read __P((struct vop_read_args *)); 127int nfs_write __P((struct vop_write_args *)); 128int nfsspec_read __P((struct vop_read_args *)); 129int nfsspec_write __P((struct vop_write_args *)); 130#ifdef FIFO 131int nfsfifo_read __P((struct vop_read_args *)); 132int nfsfifo_write __P((struct vop_write_args *)); 133#endif 134#define nfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))enoioctl) 135#define nfs_select ((int (*) __P((struct vop_select_args *)))seltrue) 136int nfs_mmap __P((struct vop_mmap_args *)); 137int nfs_fsync __P((struct vop_fsync_args *)); 138#define nfs_seek ((int (*) __P((struct vop_seek_args *)))nullop) 139int nfs_remove __P((struct vop_remove_args *)); 140int nfs_link __P((struct vop_link_args *)); 141int nfs_rename __P((struct vop_rename_args *)); 142int nfs_mkdir __P((struct vop_mkdir_args *)); 143int nfs_rmdir __P((struct vop_rmdir_args *)); 144int nfs_symlink __P((struct vop_symlink_args *)); 145int nfs_readdir __P((struct vop_readdir_args *)); 146int nfs_readlink __P((struct vop_readlink_args *)); 147int nfs_abortop __P((struct vop_abortop_args *)); 148int nfs_inactive __P((struct vop_inactive_args *)); 149int nfs_reclaim __P((struct vop_reclaim_args *)); 150int nfs_lock __P((struct vop_lock_args *)); 151int nfs_unlock __P((struct vop_unlock_args *)); 152int nfs_bmap __P((struct vop_bmap_args *)); 153int nfs_strategy __P((struct vop_strategy_args *)); 154int nfs_print __P((struct vop_print_args *)); 155int nfs_islocked __P((struct vop_islocked_args *)); 156int nfs_pathconf __P((struct vop_pathconf_args *)); 157int nfs_advlock __P((struct vop_advlock_args *)); 158int nfs_blkatoff __P((struct vop_blkatoff_args *)); 159int nfs_vget __P((struct mount *, ino_t, struct vnode **)); 160int nfs_valloc __P((struct vop_valloc_args *)); 161#define nfs_reallocblks \ 162 ((int (*) __P((struct vop_reallocblks_args *)))eopnotsupp) 163int nfs_vfree __P((struct vop_vfree_args *)); 164int nfs_truncate __P((struct vop_truncate_args *)); 165int nfs_update __P((struct vop_update_args *)); 166int nfs_bwrite __P((struct vop_bwrite_args *)); 167#endif /* KERNEL */
| 43/* 44 * Silly rename structure that hangs off the nfsnode until the name 45 * can be removed by nfs_inactive() 46 */ 47struct sillyrename { 48 struct ucred *s_cred; 49 struct vnode *s_dvp; 50 long s_namlen; 51 char s_name[20]; 52}; 53 54/* 55 * The nfsnode is the nfs equivalent to ufs's inode. Any similarity 56 * is purely coincidental. 57 * There is a unique nfsnode allocated for each active file, 58 * each current directory, each mounted-on file, text file, and the root. 59 * An nfsnode is 'named' by its file handle. (nget/nfs_node.c) 60 */ 61 62struct nfsnode { 63 struct nfsnode *n_forw; /* hash, forward */ 64 struct nfsnode **n_back; /* hash, backward */ 65 nfsv2fh_t n_fh; /* NFS File Handle */ 66 long n_flag; /* Flag for locking.. */ 67 struct vnode *n_vnode; /* vnode associated with this node */ 68 struct vattr n_vattr; /* Vnode attribute cache */ 69 time_t n_attrstamp; /* Time stamp for cached attributes */ 70 struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */ 71 u_quad_t n_size; /* Current size of file */ 72 struct lockf *n_lockf; /* Locking record of file */ 73 int n_error; /* Save write error value */ 74 u_long n_direofoffset; /* Dir. EOF offset cache */ 75 time_t n_mtime; /* Prev modify time. */ 76 time_t n_ctime; /* Prev create time. */ 77 u_quad_t n_brev; /* Modify rev when cached */ 78 u_quad_t n_lrev; /* Modify rev for lease */ 79 time_t n_expiry; /* Lease expiry time */ 80 struct nfsnode *n_tnext; /* Nqnfs timer chain */ 81 struct nfsnode *n_tprev; 82 struct sillyrename n_silly; /* Silly rename struct */ 83 struct timeval n_atim; /* Special file times */ 84 struct timeval n_mtim; 85}; 86 87/* 88 * Flags for n_flag 89 */ 90#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */ 91#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */ 92#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */ 93#define NWRITEERR 0x0008 /* Flag write errors so close will know */ 94#define NQNFSNONCACHE 0x0020 /* Non-cachable lease */ 95#define NQNFSWRITE 0x0040 /* Write lease */ 96#define NQNFSEVICTED 0x0080 /* Has been evicted */ 97#define NACC 0x0100 /* Special file accessed */ 98#define NUPD 0x0200 /* Special file updated */ 99#define NCHG 0x0400 /* Special file times changed */ 100 101/* 102 * Convert between nfsnode pointers and vnode pointers 103 */ 104#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data) 105#define NFSTOV(np) ((struct vnode *)(np)->n_vnode) 106 107/* 108 * Queue head for nfsiod's 109 */ 110TAILQ_HEAD(nfsbufs, buf) nfs_bufq; 111 112#ifdef KERNEL 113/* 114 * Prototypes for NFS vnode operations 115 */ 116int nfs_lookup __P((struct vop_lookup_args *)); 117int nfs_create __P((struct vop_create_args *)); 118int nfs_mknod __P((struct vop_mknod_args *)); 119int nfs_open __P((struct vop_open_args *)); 120int nfs_close __P((struct vop_close_args *)); 121int nfsspec_close __P((struct vop_close_args *)); 122#ifdef FIFO 123int nfsfifo_close __P((struct vop_close_args *)); 124#endif 125int nfs_access __P((struct vop_access_args *)); 126int nfsspec_access __P((struct vop_access_args *)); 127int nfs_getattr __P((struct vop_getattr_args *)); 128int nfs_setattr __P((struct vop_setattr_args *)); 129int nfs_read __P((struct vop_read_args *)); 130int nfs_write __P((struct vop_write_args *)); 131int nfsspec_read __P((struct vop_read_args *)); 132int nfsspec_write __P((struct vop_write_args *)); 133#ifdef FIFO 134int nfsfifo_read __P((struct vop_read_args *)); 135int nfsfifo_write __P((struct vop_write_args *)); 136#endif 137#define nfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))enoioctl) 138#define nfs_select ((int (*) __P((struct vop_select_args *)))seltrue) 139int nfs_mmap __P((struct vop_mmap_args *)); 140int nfs_fsync __P((struct vop_fsync_args *)); 141#define nfs_seek ((int (*) __P((struct vop_seek_args *)))nullop) 142int nfs_remove __P((struct vop_remove_args *)); 143int nfs_link __P((struct vop_link_args *)); 144int nfs_rename __P((struct vop_rename_args *)); 145int nfs_mkdir __P((struct vop_mkdir_args *)); 146int nfs_rmdir __P((struct vop_rmdir_args *)); 147int nfs_symlink __P((struct vop_symlink_args *)); 148int nfs_readdir __P((struct vop_readdir_args *)); 149int nfs_readlink __P((struct vop_readlink_args *)); 150int nfs_abortop __P((struct vop_abortop_args *)); 151int nfs_inactive __P((struct vop_inactive_args *)); 152int nfs_reclaim __P((struct vop_reclaim_args *)); 153int nfs_lock __P((struct vop_lock_args *)); 154int nfs_unlock __P((struct vop_unlock_args *)); 155int nfs_bmap __P((struct vop_bmap_args *)); 156int nfs_strategy __P((struct vop_strategy_args *)); 157int nfs_print __P((struct vop_print_args *)); 158int nfs_islocked __P((struct vop_islocked_args *)); 159int nfs_pathconf __P((struct vop_pathconf_args *)); 160int nfs_advlock __P((struct vop_advlock_args *)); 161int nfs_blkatoff __P((struct vop_blkatoff_args *)); 162int nfs_vget __P((struct mount *, ino_t, struct vnode **)); 163int nfs_valloc __P((struct vop_valloc_args *)); 164#define nfs_reallocblks \ 165 ((int (*) __P((struct vop_reallocblks_args *)))eopnotsupp) 166int nfs_vfree __P((struct vop_vfree_args *)); 167int nfs_truncate __P((struct vop_truncate_args *)); 168int nfs_update __P((struct vop_update_args *)); 169int nfs_bwrite __P((struct vop_bwrite_args *)); 170#endif /* KERNEL */
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