/* * Copyright (c) 1989, 1993, 1995 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rick Macklem at The University of Guelph. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)nfs.h 8.4 (Berkeley) 5/1/95 * $Id: nfs.h,v 1.44 1998/09/07 05:42:15 bde Exp $ */ #ifndef _9FS_H_ #define _9FS_H_ #ifdef KERNEL #include "opt_u9fs.h" #endif #define U9FS_FABLKSIZE 512 #define U9FS_PORT 17008 /* * U9FS mount option flags */ #define U9FSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ #define U9FSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ #define U9FSMNT_INT 0x00000040 /* allow interrupts on hard mount */ #define U9FSMNT_KERB 0x00000400 /* Use Kerberos authentication */ #define U9FSMNT_READAHEAD 0x00002000 /* set read ahead */ struct p9user { uid_t p9_uid; char p9_name[U9FS_NAMELEN]; }; /* * Arguments to mount 9FS */ #define U9FS_ARGSVERSION 1 /* change when nfs_args changes */ struct u9fs_args { int version; /* args structure version number */ struct sockaddr *addr; /* file server address */ int addrlen; /* length of address */ int sotype; /* Socket type */ int proto; /* and Protocol */ int fhsize; /* Size, in bytes, of fh */ int flags; /* flags */ int wsize; /* write size in bytes */ int rsize; /* read size in bytes */ int readdirsize; /* readdir size in bytes */ char *hostname; /* server's name */ struct sockaddr * authaddr; int authaddrlen; int authsotype; int authsoproto; int nusers; char uname[U9FS_NAMELEN]; char key[U9AUTH_DESKEYLEN]; struct p9user * users; }; /* * The u9fsnode is the u9fs equivalent to ufs's inode. Any similarity * is purely coincidental. * There is a unique u9fsnode allocated for each active file, * each current directory, each mounted-on file, text file, and the root. * An u9fsnode is 'named' by its file handle. (nget/u9fs_node.c) * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite * type definitions), file handles of > 32 bytes should probably be split out * into a separate MALLOC()'d data structure. (Reduce the size of u9fsfh_t by * changing the definition in u9fsproto.h of U9FS_SMALLFH.) * NB: Hopefully the current order of the fields is such that everything will * be well aligned and, therefore, tightly packed. */ struct u9fsnode { LIST_ENTRY(u9fsnode) n_hash; /* Hash chain */ u_quad_t n_size; /* Current size of file */ u_quad_t n_lrev; /* Modify rev for lease */ struct vattr n_vattr; /* Vnode attribute cache */ time_t n_attrstamp; /* Attr. cache timestamp */ u_int32_t n_mode; /* ACCESS mode cache */ uid_t n_modeuid; /* credentials having mode */ time_t n_modestamp; /* mode cache timestamp */ time_t n_mtime; /* Prev modify time. */ time_t n_ctime; /* Prev create time. */ u_short *n_fid; /* U9FS FID */ struct vnode *n_vnode; /* associated vnode */ struct lockf *n_lockf; /* Locking record of file */ int n_error; /* Save write error value */ #if 0 union { struct timespec nf_atim; /* Special file times */ u9fsuint64 nd_cookieverf; /* Cookie verifier (dir only) */ } n_un1; union { struct timespec nf_mtim; off_t nd_direof; /* Dir. EOF offset cache */ } n_un2; union { struct sillyrename *nf_silly; /* Ptr to silly rename struct */ LIST_HEAD(, u9fsdmap) nd_cook; /* cookies */ } n_un3; #endif short n_flag; /* Flag for locking.. */ }; #define n_atim n_un1.nf_atim #define n_mtim n_un2.nf_mtim #define n_sillyrename n_un3.nf_silly #define n_cookieverf n_un1.nd_cookieverf #define n_direofoffset n_un2.nd_direof #define n_cookies n_un3.nd_cook /* * Flags for n_flag */ #define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */ #define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */ #define NMODIFIED 0x0004 /* Might have a modified buffer in bio */ #define NWRITEERR 0x0008 /* Flag write errors so close will know */ #define NQU9FSNONCACHE 0x0020 /* Non-cachable lease */ #define NQU9FSWRITE 0x0040 /* Write lease */ #define NQU9FSEVICTED 0x0080 /* Has been evicted */ #define NACC 0x0100 /* Special file accessed */ #define NUPD 0x0200 /* Special file updated */ #define NCHG 0x0400 /* Special file times changed */ #define NLOCKED 0x0800 /* node is locked */ #define NWANTED 0x0100 /* someone wants to lock */ /* * Convert between u9fsnode pointers and vnode pointers */ #define VTOU9FS(vp) ((struct u9fsnode *)(vp)->v_data) #define U9FSTOV(np) ((struct vnode *)(np)->n_vnode) /* * Mount structure. * One allocated on every U9FS mount. * Holds U9FS specific information for mount. */ struct u9fsmount { int nm_flag; /* Flags for soft/hard... */ int nm_state; /* Internal state flags */ struct mount *nm_mountp; /* Vfs structure for this filesystem */ int nm_numgrps; /* Max. size of groupslist */ u_short nm_fid; /* fid of root dir */ struct socket *nm_so; /* Rpc socket */ int nm_sotype; /* Type of socket */ int nm_soproto; /* and protocol */ int nm_soflags; /* pr_flags for socket protocol */ struct sockaddr *nm_nam; /* Addr of server */ int nm_sent; /* Request send count */ int nm_cwnd; /* Request send window */ int nm_rsize; /* Max size of read rpc */ int nm_wsize; /* Max size of write rpc */ int nm_readdirsize; /* Size of a readdir rpc */ #if 0 struct vnode *nm_inprog; /* Vnode in prog by nqu9fs_clientd() */ uid_t nm_authuid; /* Uid for authenticator */ int nm_authtype; /* Authenticator type */ int nm_authlen; /* and length */ char *nm_authstr; /* Authenticator string */ char *nm_verfstr; /* and the verifier */ int nm_verflen; u_char nm_verf[U9FSX_V3WRITEVERF]; /* V3 write verifier */ U9FSKERBKEY_T nm_key; /* and the session key */ int nm_numuids; /* Number of u9fsuid mappings */ TAILQ_HEAD(, u9fsuid) nm_uidlruhead; /* Lists of u9fsuid mappings */ LIST_HEAD(, u9fsuid) nm_uidhashtbl[U9FS_MUIDHASHSIZ]; TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */ short nm_bufqlen; /* number of buffers in queue */ short nm_bufqwant; /* process wants to add to the queue */ int nm_bufqiods; /* number of iods processing queue */ #endif u_int64_t nm_maxfilesize; /* maximum file size */ }; #ifdef KERNEL #ifdef MALLOC_DECLARE MALLOC_DECLARE(M_U9FSHASH); #endif /* * Convert mount ptr to u9fsmount ptr. */ #define VFSTOU9FS(mp) ((struct u9fsmount *)((mp)->mnt_data)) #endif /* KERNEL */ #endif