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