diff options
author | attilio <attilio@FreeBSD.org> | 2013-03-02 16:30:18 +0000 |
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committer | attilio <attilio@FreeBSD.org> | 2013-03-02 16:30:18 +0000 |
commit | 5d33ae74879ab79bd32ffd631545b23ad1c0a85f (patch) | |
tree | 1d1a145a5308a64c02e657bcfa63752a7cee4fdd | |
parent | 718767a4c14c83d5f90369c0de970ccf9c3c7ad4 (diff) | |
download | FreeBSD-src-5d33ae74879ab79bd32ffd631545b23ad1c0a85f.zip FreeBSD-src-5d33ae74879ab79bd32ffd631545b23ad1c0a85f.tar.gz |
Garbage collect CODAFS bits which are now completely disconnected from
the tree since few months.
This patch is not targeted for MFC.
-rw-r--r-- | ObsoleteFiles.inc | 2 | ||||
-rw-r--r-- | share/man/man4/coda.4 | 82 | ||||
-rw-r--r-- | sys/fs/coda/README | 62 | ||||
-rw-r--r-- | sys/fs/coda/TODO | 16 | ||||
-rw-r--r-- | sys/fs/coda/cnode.h | 206 | ||||
-rw-r--r-- | sys/fs/coda/coda.h | 838 | ||||
-rw-r--r-- | sys/fs/coda/coda_fbsd.c | 148 | ||||
-rw-r--r-- | sys/fs/coda/coda_io.h | 73 | ||||
-rw-r--r-- | sys/fs/coda/coda_opstats.h | 130 | ||||
-rw-r--r-- | sys/fs/coda/coda_pioctl.h | 69 | ||||
-rw-r--r-- | sys/fs/coda/coda_psdev.c | 675 | ||||
-rw-r--r-- | sys/fs/coda/coda_psdev.h | 46 | ||||
-rw-r--r-- | sys/fs/coda/coda_subr.c | 628 | ||||
-rw-r--r-- | sys/fs/coda/coda_subr.h | 49 | ||||
-rw-r--r-- | sys/fs/coda/coda_venus.c | 705 | ||||
-rw-r--r-- | sys/fs/coda/coda_venus.h | 83 | ||||
-rw-r--r-- | sys/fs/coda/coda_vfsops.c | 446 | ||||
-rw-r--r-- | sys/fs/coda/coda_vfsops.h | 60 | ||||
-rw-r--r-- | sys/fs/coda/coda_vnops.c | 1738 | ||||
-rw-r--r-- | sys/fs/coda/coda_vnops.h | 84 | ||||
-rw-r--r-- | sys/modules/coda/Makefile | 10 | ||||
-rw-r--r-- | sys/modules/coda5/Makefile | 13 |
22 files changed, 2 insertions, 6161 deletions
diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc index 93d50fe..d42b2dc 100644 --- a/ObsoleteFiles.inc +++ b/ObsoleteFiles.inc @@ -38,6 +38,8 @@ # xargs -n1 | sort | uniq -d; # done +# 20130302: CODAFS support removed +OLD_FILES+=usr/share/man/man4/coda.4.gz # 20130302: XFS support removed OLD_FILES+=usr/share/man/man5/xfs.5.gz # 20130116: removed long unused directories for .1aout section manpages diff --git a/share/man/man4/coda.4 b/share/man/man4/coda.4 deleted file mode 100644 index e1799ef..0000000 --- a/share/man/man4/coda.4 +++ /dev/null @@ -1,82 +0,0 @@ -.\" Copyright (c) 2008 Robert N. M. Watson -.\" All rights reserved. -.\" -.\" 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. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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. -.\" -.\" $FreeBSD$ -.\" -.Dd January 21, 2008 -.Dt CODA 4 -.Os -.Sh NAME -.Nm coda -.Nd Coda Distributed File System -.Sh SYNOPSIS -To compile this driver into the kernel, -place the following lines in your -kernel configuration file: -.Bd -ragged -offset indent -.Cd "options CODA" -.Ed -.Pp -Alternatively, to load the driver as a -module at boot time, place the following line in -.Xr loader.conf 5 : -.Bd -literal -offset indent -coda_load="YES" -.Ed -.Pp -To load as a kernel loadable module after boot: -.Pp -.Dl "kldload coda" -.Sh DESCRIPTION -The -.Nm -kernel module allows the experimental, third-party Coda distributed file -system client to be used with -.Fx . -The module allows the userspace Coda client daemon, Venus, to present the -Coda distributed file system namespace via the local -.Pa /coda -file system mountpoint via the -.Pa /dev/cfs0 -special device. -.Pp -To use Coda, the Coda client software package must also be installed; more -information on Coda may be found in the Coda documentation distributed with -that package. -.Sh SEE ALSO -.Xr loader.conf 5 , -.Xr kldload 8 -.Sh HISTORY -Support for -.Nm -first appeared in -.Fx 3.0 . -.Sh AUTHORS -This manual page was written by -.An Robert Watson Aq rwatson@FreeBSD.org . -.Sh BUGS -The -Coda distributed file system is considered experimental, and production -deployment should occur only after careful consideration of the risks of -deploying experimental software. diff --git a/sys/fs/coda/README b/sys/fs/coda/README deleted file mode 100644 index 19de799..0000000 --- a/sys/fs/coda/README +++ /dev/null @@ -1,62 +0,0 @@ -$FreeBSD$ - - Announcing the Availability of the - Coda Distributed - Filesystem - for - BSD Unix Systems - - Coda is a distributed filesystem like NFS and AFS. It is -freely available, like NFS. But it functions much like AFS in being a -"stateful" filesystem. Coda and AFS cache files on your local -machine to improve performance. But Coda goes a step further than AFS -by letting you access the cached files when there is no available -network, viz. disconnected laptops and network outages. In Coda, both -the client and server are outside the kernel which makes them easier -to experiment with. - -To get more information on Coda, I would like to refer people to - http://www.coda.cs.cmu.edu -There is a wealth of documents, papers, and theses there. There is -also a good introduction to the Coda File System in - http://www.coda.cs.cmu.edu/ljpaper/lj.html - -Coda was originally developed as an academic prototype/testbed. It is -being polished and rewritten where necessary. Coda is a work in -progress and does have bugs. It is, though, very usable. Our -interest is in making Coda available to as many people as possible and -to have Coda evolve and flourish. - -The bulk of the Coda filesystem code supports the Coda client -program, the Coda server program and the utilities needed by both. -All these programs are unix programs and can run equally well on any -Unix platform. Our main development thrust is improving these -programs. There is a small part of Coda that deals with the kernel to -filesystem interface. This code is OS specific (but should not be -platform specific). - -Coda is currently available for several OS's and platforms: - Freebsd-2.2.5: i386 - Freebsd-2.2.6: i386 - Freebsd -current: i386 - linux 2.0: i386 & sparc - linux 2.1: i386 & sparc - NetBSD 1.3: i386 - NetBSD -current: i386 -The relevant sources, binaries, and docs can be found in - ftp://ftp.coda.cs.cmu.edu/pub/coda/ - -We intend to come out with new Coda releases often, not daily. We -don't want to slight any OS/platform not mentioned above. We are just -limited in our resources as to what we can support internally. We -will be happy to integrate OpenBSD support as well as other OS -support. Also, adding platform support should be relatively easy and -we can discuss this. The only difficulty is that Coda has a light weight -process package. It does some manipulations in assembler which would -have to be redone for a different platform. - -There are several mailing lists @coda.cs.cmu.edu that discuss coda: -coda-announce and linux-coda. We are going to revise linux-coda to be -OS neutral, since it is mainly Coda we want to discuss. We appreciate -comments, feedback, bug reports, bug fixes, enhancements, etc. - diff --git a/sys/fs/coda/TODO b/sys/fs/coda/TODO deleted file mode 100644 index a0a618a..0000000 --- a/sys/fs/coda/TODO +++ /dev/null @@ -1,16 +0,0 @@ -OOPS: - FreeBSD does not fsync!!! - -Near term: - Fix bug in executing/mapping new files. - cfs_mount bug: interaction with cfs_inactive no cfs_unsave. - vref/vn_lock == vget except no VXWANT which may be on. - Review locks: vn_lock/VOP_UNLOCK/lockmgr ... - -Medium term: - Add missing VFS methods. - Do performance profile. - Tune hash algorithm used in cfs_subr. - Make MPSAFE - -$FreeBSD$ diff --git a/sys/fs/coda/cnode.h b/sys/fs/coda/cnode.h deleted file mode 100644 index 27531a4..0000000 --- a/sys/fs/coda/cnode.h +++ /dev/null @@ -1,206 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/cnode.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - * - */ - -/*- - * Mach Operating System - * Copyright (c) 1990 Carnegie-Mellon University - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon University. - * Contributers include David Steere, James Kistler, and M. Satyanarayanan. - */ - -#ifndef _CNODE_H_ -#define _CNODE_H_ - -#include <sys/vnode.h> -#include <sys/lock.h> - -MALLOC_DECLARE(M_CODA); - -/* - * Cnode lookup stuff. - * - * NOTE: CODA_CACHESIZE must be a power of 2 for cfshash to work! - */ -#define CODA_CACHESIZE 512 - -#define CODA_ALLOC(ptr, cast, size) do { \ - ptr = (cast)malloc((unsigned long) size, M_CODA, M_WAITOK); \ - if (ptr == NULL) \ - panic("kernel malloc returns 0 at %s:%d\n", __FILE__, \ - __LINE__); \ -} while (0) - -#define CODA_FREE(ptr, size) free((ptr), M_CODA) - -/* - * Used to select debugging statements throughout the cfs code. - */ -extern int codadebug; -extern int coda_printf_delay; -extern int coda_vnop_print_entry; -extern int coda_psdev_print_entry; -extern int coda_vfsop_print_entry; - -#define CODADBGMSK(N) (1 << N) - -#define CODADEBUG(N, STMT) do { \ - if (codadebug & CODADBGMSK(N)) { \ - STMT \ - } \ -} while (0) - -#define myprintf(args) do { \ - if (coda_printf_delay) \ - DELAY(coda_printf_delay); \ - printf args ; \ -} while (0) - -struct cnode { - struct vnode *c_vnode; - u_short c_flags; /* flags (see below) */ - struct CodaFid c_fid; /* file handle */ - struct vnode *c_ovp; /* open vnode pointer */ - u_short c_ocount; /* count of openers */ - u_short c_owrite; /* count of open for write */ - struct vattr c_vattr; /* attributes */ - char *c_symlink; /* pointer to symbolic link */ - u_short c_symlen; /* length of symbolic link */ - uid_t c_cached_uid; /* cached uid */ - accmode_t c_cached_mode; /* cached access mode */ - struct cnode *c_next; /* links if on FreeBSD machine */ -}; -#define VTOC(vp) ((struct cnode *)(vp)->v_data) -#define CTOV(cp) ((struct vnode *)((cp)->c_vnode)) - -/* flags */ -#define C_VATTR 0x01 /* Validity of vattr in the cnode */ -#define C_SYMLINK 0x02 /* Validity of symlink pointer in the Code */ -#define C_ACCCACHE 0x04 /* Validity of access cache */ -#define C_WANTED 0x08 /* Set if lock wanted */ -#define C_LOCKED 0x10 /* Set if lock held */ -#define C_UNMOUNTING 0X20 /* Set if unmounting */ -#define C_PURGING 0x40 /* Set if purging a fid */ - -#define VALID_VATTR(cp) ((cp->c_flags) & C_VATTR) -#define VALID_SYMLINK(cp) ((cp->c_flags) & C_SYMLINK) -#define VALID_ACCCACHE(cp) ((cp->c_flags) & C_ACCCACHE) -#define IS_UNMOUNTING(cp) ((cp)->c_flags & C_UNMOUNTING) - -struct vcomm { - u_long vc_seq; - struct selinfo vc_selproc; - TAILQ_HEAD(, vmsg) vc_requests; - TAILQ_HEAD(, vmsg) vc_replies; - int vc_open; -}; - -#define VC_OPEN(vcp) ((vcp)->vc_open == 1) -#define MARK_VC_CLOSED(vcp) (vcp)->vc_open = 0 -#define MARK_VC_OPEN(vcp) (vcp)->vc_open = 1 - -struct coda_clstat { - int ncalls; /* client requests */ - int nbadcalls; /* upcall failures */ - int reqs[CODA_NCALLS]; /* count of each request */ -}; -extern struct coda_clstat coda_clstat; - -/* - * CODA structure to hold mount/filesystem information. - */ -struct coda_mntinfo { - struct vnode *mi_rootvp; - struct mount *mi_vfsp; - struct vcomm mi_vcomm; - struct cdev *dev; - int mi_started; - LIST_ENTRY(coda_mntinfo) mi_list; -}; -struct coda_mntinfo *dev2coda_mntinfo(struct cdev *dev); - -/* - * vfs pointer to mount info. - */ -#define vftomi(vfsp) ((struct coda_mntinfo *)(vfsp->mnt_data)) -#define CODA_MOUNTED(vfsp) (vftomi((vfsp)) != NULL) - -/* - * vnode pointer to mount info. - */ -#define vtomi(vp) ((struct coda_mntinfo *)(vp->v_mount->mnt_data)) - -/* - * Used for identifying usage of "Control" object. - */ -extern struct vnode *coda_ctlvp; -#define IS_CTL_VP(vp) ((vp) == coda_ctlvp) -#define IS_CTL_NAME(vp, name, l) ((l == CODA_CONTROLLEN) \ - && ((vp) == vtomi((vp))->mi_rootvp) && \ - strncmp(name, CODA_CONTROL, l) == 0) - -/* - * An enum to tell us whether something that will remove a reference to a - * cnode was a downcall or not. - */ -enum dc_status { - IS_DOWNCALL = 6, - NOT_DOWNCALL = 7 -}; - -/* cfs_psdev.h */ -int coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize, - caddr_t buffer); - -extern int coda_kernel_version; - -/* cfs_subr.h */ -int handleDownCall(struct coda_mntinfo *mnt, int opcode, - union outputArgs *out); -void coda_unmounting(struct mount *whoIam); -int coda_vmflush(struct cnode *cp); - -/* cfs_vnodeops.h */ -struct cnode *make_coda_node(struct CodaFid *fid, struct mount *vfsp, - short type); -int coda_vnodeopstats_init(void); - -/* sigh */ -#define CODA_RDWR ((u_long) 31) - -#endif /* _CNODE_H_ */ diff --git a/sys/fs/coda/coda.h b/sys/fs/coda/coda.h deleted file mode 100644 index 2cfb712..0000000 --- a/sys/fs/coda/coda.h +++ /dev/null @@ -1,838 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - * - */ - - -/* - * - * Based on cfs.h from Mach, but revamped for increased simplicity. - * Linux modifications by Peter Braam, Aug 1996 - */ - -#ifndef _CODA_HEADER_ -#define _CODA_HEADER_ - -#ifdef _KERNEL -#include "opt_coda.h" /* for CODA_COMPAT_5 option */ -#endif - -/* Avoid CODA_COMPAT_5 redefinition in coda5 module */ -#if defined (CODA5_MODULE) && !defined(CODA_COMPAT_5) -#define CODA_COMPAT_5 -#endif - -/* Catch new _KERNEL defn for NetBSD */ -#ifdef __NetBSD__ -#include <sys/types.h> -#endif - -#ifndef CODA_MAXSYMLINKS -#define CODA_MAXSYMLINKS 10 -#endif - -#if defined(DJGPP) || defined(__CYGWIN32__) -#ifdef _KERNEL -typedef unsigned long u_long; -typedef unsigned int u_int; -typedef unsigned short u_short; -typedef u_long ino_t; -typedef u_long struct cdev *; -typedef void * caddr_t; -#ifdef DOS -typedef unsigned __int64 u_quad_t; -#else -typedef unsigned long long u_quad_t; -#endif - -#define inline - -struct timespec { - long ts_sec; - long ts_nsec; -}; -#else /* DJGPP but not _KERNEL */ -#include <sys/types.h> -#include <sys/time.h> -typedef unsigned long long u_quad_t; -#endif /* !_KERNEL */ -#endif /* !DJGPP */ - - -#if defined(__linux__) -#define cdev_t u_quad_t -#if !defined(_UQUAD_T_) && (!defined(__GLIBC__) || __GLIBC__ < 2) -#define _UQUAD_T_ 1 -typedef unsigned long long u_quad_t; -#endif -#else -#define cdev_t dev_t -#endif - -#ifdef __CYGWIN32__ -typedef unsigned char u_int8_t; -struct timespec { - time_t tv_sec; /* seconds */ - long tv_nsec; /* nanoseconds */ -}; -#endif - -typedef u_int32_t cuid_t; -typedef u_int32_t cgid_t; - -/* - * Cfs constants - */ -#define CODA_MAXNAMLEN 255 -#define CODA_MAXPATHLEN 1024 -#define CODA_MAXSYMLINK 10 - -/* these are Coda's version of O_RDONLY etc combinations - * to deal with VFS open modes - */ -#define C_O_READ 0x001 -#define C_O_WRITE 0x002 -#define C_O_TRUNC 0x010 -#define C_O_EXCL 0x100 -#define C_O_CREAT 0x200 - -/* these are to find mode bits in Venus */ -#define C_M_READ 00400 -#define C_M_WRITE 00200 - -/* for access Venus will use */ -#define C_A_C_OK 8 /* Test for writing upon create. */ -#define C_A_R_OK 4 /* Test for read permission. */ -#define C_A_W_OK 2 /* Test for write permission. */ -#define C_A_X_OK 1 /* Test for execute permission. */ -#define C_A_F_OK 0 /* Test for existence. */ - - -#ifndef _VENUS_DIRENT_T_ -#define _VENUS_DIRENT_T_ 1 -struct venus_dirent { - unsigned int d_fileno; /* file number of entry */ - unsigned short d_reclen; /* length of this record */ - unsigned char d_type; /* file type, see below */ - unsigned char d_namlen; /* length of string in d_name */ - char d_name[CODA_MAXNAMLEN + 1];/* name must be no longer than this */ -}; -#undef DIRSIZ -#define DIRSIZ(dp) ((sizeof (struct venus_dirent) - (CODA_MAXNAMLEN+1)) + \ - (((dp)->d_namlen+1 + 3) &~ 3)) - -/* - * File types - */ -#define CDT_UNKNOWN 0 -#define CDT_FIFO 1 -#define CDT_CHR 2 -#define CDT_DIR 4 -#define CDT_BLK 6 -#define CDT_REG 8 -#define CDT_LNK 10 -#define CDT_SOCK 12 -#define CDT_WHT 14 - -/* - * Convert between stat structure types and directory types. - */ -#define IFTOCDT(mode) (((mode) & 0170000) >> 12) -#define CDTTOIF(dirtype) ((dirtype) << 12) - -#endif - -#ifdef CODA_COMPAT_5 - -struct CodaFid { - u_long Volume; - u_long Vnode; - u_long Unique; -}; - -static __inline__ ino_t coda_f2i(struct CodaFid *fid) -{ - if (!fid) return 0; - return (fid->Unique + (fid->Vnode<<10) + (fid->Volume<<20)); -} - -static __inline__ char * coda_f2s(struct CodaFid *fid) -{ - static char fid_str [35]; - snprintf (fid_str, 35, "[%lx.%lx.%lx]", fid->Volume, - fid->Vnode, fid->Unique); - return fid_str; -} - -static __inline__ int coda_fid_eq (struct CodaFid *fid1, struct CodaFid *fid2) -{ - return (fid1->Volume == fid2->Volume && - fid1->Vnode == fid2->Vnode && - fid1->Unique == fid2->Unique); -} - -struct coda_cred { - u_int32_t cr_uid, cr_euid, cr_suid, cr_fsuid; /* Real, efftve, set, fs uid*/ - u_int32_t cr_groupid, cr_egid, cr_sgid, cr_fsgid; /* same for groups */ -}; - -#else /* CODA_COMPAT_5 */ - -struct CodaFid { - u_int32_t opaque[4]; -}; - -static __inline__ ino_t coda_f2i(struct CodaFid *fid) -{ - if ( ! fid ) - return 0; - return (fid->opaque[3] ^ (fid->opaque[2]<<10) ^ (fid->opaque[1]<<20) ^ fid->opaque[0]); -} - -static __inline__ char * coda_f2s(struct CodaFid *fid) - { - static char fid_str [35]; - snprintf (fid_str, 35, "[%x.%x.%x.%x]", fid->opaque[0], - fid->opaque[1], fid->opaque[2], fid->opaque[3]); - return fid_str; - } - -static __inline__ int coda_fid_eq (struct CodaFid *fid1, struct CodaFid *fid2) -{ - return (fid1->opaque[0] == fid2->opaque[0] && - fid1->opaque[1] == fid2->opaque[1] && - fid1->opaque[2] == fid2->opaque[2] && - fid1->opaque[3] == fid2->opaque[3]); -} - -#endif /* CODA_COMPAT_5 */ - -#ifndef _VENUS_VATTR_T_ -#define _VENUS_VATTR_T_ -/* - * Vnode types. VNON means no type. - */ -enum coda_vtype { C_VNON, C_VREG, C_VDIR, C_VBLK, C_VCHR, C_VLNK, C_VSOCK, C_VFIFO, C_VBAD }; - -struct coda_vattr { - long va_type; /* vnode type (for create) */ - u_short va_mode; /* files access mode and type */ - short va_nlink; /* number of references to file */ - cuid_t va_uid; /* owner user id */ - cgid_t va_gid; /* owner group id */ - long va_fileid; /* file id */ - u_quad_t va_size; /* file size in bytes */ - long va_blocksize; /* blocksize preferred for i/o */ - struct timespec va_atime; /* time of last access */ - struct timespec va_mtime; /* time of last modification */ - struct timespec va_ctime; /* time file changed */ - u_long va_gen; /* generation number of file */ - u_long va_flags; /* flags defined for file */ - cdev_t va_rdev; /* device special file represents */ - u_quad_t va_bytes; /* bytes of disk space held by file */ - u_quad_t va_filerev; /* file modification number */ -}; - -#endif - -/* structure used by CODA_STATFS for getting cache information from venus */ -struct coda_statfs { - int32_t f_blocks; - int32_t f_bfree; - int32_t f_bavail; - int32_t f_files; - int32_t f_ffree; -}; - -/* - * Kernel <--> Venus communications. - */ - -#define CODA_ROOT 2 -#define CODA_OPEN_BY_FD 3 -#define CODA_OPEN 4 -#define CODA_CLOSE 5 -#define CODA_IOCTL 6 -#define CODA_GETATTR 7 -#define CODA_SETATTR 8 -#define CODA_ACCESS 9 -#define CODA_LOOKUP 10 -#define CODA_CREATE 11 -#define CODA_REMOVE 12 -#define CODA_LINK 13 -#define CODA_RENAME 14 -#define CODA_MKDIR 15 -#define CODA_RMDIR 16 -#define CODA_READDIR 17 -#define CODA_SYMLINK 18 -#define CODA_READLINK 19 -#define CODA_FSYNC 20 -#define CODA_INACTIVE 21 -#define CODA_VGET 22 -#define CODA_SIGNAL 23 -#define CODA_REPLACE 24 -#define CODA_FLUSH 25 -#define CODA_PURGEUSER 26 -#define CODA_ZAPFILE 27 -#define CODA_ZAPDIR 28 -#define CODA_PURGEFID 30 -#define CODA_OPEN_BY_PATH 31 -#define CODA_RESOLVE 32 -#define CODA_REINTEGRATE 33 -#define CODA_STATFS 34 -#define CODA_NCALLS 35 - -#define DOWNCALL(opcode) (opcode >= CODA_REPLACE && opcode <= CODA_PURGEFID) - -#define VC_MAXDATASIZE 8192 -#define VC_MAXMSGSIZE sizeof(union inputArgs)+sizeof(union outputArgs) +\ - VC_MAXDATASIZE - -#define CIOC_KERNEL_VERSION _IOWR('c', 10, int) -#if 0 - /* don't care about kernel version number */ -#define CODA_KERNEL_VERSION 0 - /* The old venus 4.6 compatible interface */ -#define CODA_KERNEL_VERSION 1 -#endif /* realms/cells */ -#ifdef CODA_COMPAT_5 - /* venus_lookup gets an extra parameter to aid windows.*/ -#define CODA_KERNEL_VERSION 2 -#else - /* 128-bit fids for realms */ -#define CODA_KERNEL_VERSION 3 -#endif - -/* - * Venus <-> Coda RPC arguments - */ -#ifdef CODA_COMPAT_5 -struct coda_in_hdr { - unsigned long opcode; - unsigned long unique; /* Keep multiple outstanding msgs distinct */ - u_short pid; /* Common to all */ - u_short pgid; /* Common to all */ - u_short sid; /* Common to all */ - struct coda_cred cred; /* Common to all */ -}; -#else -struct coda_in_hdr { - u_int32_t opcode; - u_int32_t unique; /* Keep multiple outstanding msgs distinct */ - pid_t pid; - pid_t pgid; - cuid_t uid; -}; -#endif - -/* Really important that opcode and unique are 1st two fields! */ -struct coda_out_hdr { - u_int32_t opcode; - u_int32_t unique; - u_int32_t result; -}; - -/* coda_root: NO_IN */ -struct coda_root_out { - struct coda_out_hdr oh; - struct CodaFid Fid; -}; - -struct coda_root_in { - struct coda_in_hdr in; -}; - -/* coda_sync: */ -/* Nothing needed for coda_sync */ - -/* coda_open: */ -struct coda_open_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int flags; -}; - -struct coda_open_out { - struct coda_out_hdr oh; - cdev_t dev; - ino_t inode; -}; - - -/* coda_close: */ -struct coda_close_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int flags; -}; - -struct coda_close_out { - struct coda_out_hdr out; -}; - -/* coda_ioctl: */ -struct coda_ioctl_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int cmd; - int len; - int rwflag; - char *data; /* Place holder for data. */ -}; - -struct coda_ioctl_out { - struct coda_out_hdr oh; - int len; - caddr_t data; /* Place holder for data. */ -}; - - -/* coda_getattr: */ -struct coda_getattr_in { - struct coda_in_hdr ih; - struct CodaFid Fid; -}; - -struct coda_getattr_out { - struct coda_out_hdr oh; - struct coda_vattr attr; -}; - - -/* coda_setattr: NO_OUT */ -struct coda_setattr_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - struct coda_vattr attr; -}; - -struct coda_setattr_out { - struct coda_out_hdr out; -}; - -/* coda_access: NO_OUT */ -struct coda_access_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int flags; -}; - -struct coda_access_out { - struct coda_out_hdr out; -}; - - -/* lookup flags */ -#define CLU_CASE_SENSITIVE 0x01 -#define CLU_CASE_INSENSITIVE 0x02 - -/* coda_lookup: */ -struct coda_lookup_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int name; /* Place holder for data. */ - int flags; -}; - -struct coda_lookup_out { - struct coda_out_hdr oh; - struct CodaFid Fid; - int vtype; -}; - - -/* coda_create: */ -struct coda_create_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - struct coda_vattr attr; - int excl; - int mode; - int name; /* Place holder for data. */ -}; - -struct coda_create_out { - struct coda_out_hdr oh; - struct CodaFid Fid; - struct coda_vattr attr; -}; - - -/* coda_remove: NO_OUT */ -struct coda_remove_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int name; /* Place holder for data. */ -}; - -struct coda_remove_out { - struct coda_out_hdr out; -}; - -/* coda_link: NO_OUT */ -struct coda_link_in { - struct coda_in_hdr ih; - struct CodaFid sourceFid; /* cnode to link *to* */ - struct CodaFid destFid; /* Directory in which to place link */ - int tname; /* Place holder for data. */ -}; - -struct coda_link_out { - struct coda_out_hdr out; -}; - - -/* coda_rename: NO_OUT */ -struct coda_rename_in { - struct coda_in_hdr ih; - struct CodaFid sourceFid; - int srcname; - struct CodaFid destFid; - int destname; -}; - -struct coda_rename_out { - struct coda_out_hdr out; -}; - -/* coda_mkdir: */ -struct coda_mkdir_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - struct coda_vattr attr; - int name; /* Place holder for data. */ -}; - -struct coda_mkdir_out { - struct coda_out_hdr oh; - struct CodaFid Fid; - struct coda_vattr attr; -}; - - -/* coda_rmdir: NO_OUT */ -struct coda_rmdir_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int name; /* Place holder for data. */ -}; - -struct coda_rmdir_out { - struct coda_out_hdr out; -}; - -/* coda_readdir: */ -struct coda_readdir_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int count; - int offset; -}; - -struct coda_readdir_out { - struct coda_out_hdr oh; - int size; - caddr_t data; /* Place holder for data. */ -}; - -/* coda_symlink: NO_OUT */ -struct coda_symlink_in { - struct coda_in_hdr ih; - struct CodaFid Fid; /* Directory to put symlink in */ - int srcname; - struct coda_vattr attr; - int tname; -}; - -struct coda_symlink_out { - struct coda_out_hdr out; -}; - -/* coda_readlink: */ -struct coda_readlink_in { - struct coda_in_hdr ih; - struct CodaFid Fid; -}; - -struct coda_readlink_out { - struct coda_out_hdr oh; - int count; - caddr_t data; /* Place holder for data. */ -}; - - -/* coda_fsync: NO_OUT */ -struct coda_fsync_in { - struct coda_in_hdr ih; - struct CodaFid Fid; -}; - -struct coda_fsync_out { - struct coda_out_hdr out; -}; - -/* coda_inactive: NO_OUT */ -struct coda_inactive_in { - struct coda_in_hdr ih; - struct CodaFid Fid; -}; - -/* coda_vget: */ -struct coda_vget_in { - struct coda_in_hdr ih; - struct CodaFid Fid; -}; - -struct coda_vget_out { - struct coda_out_hdr oh; - struct CodaFid Fid; - int vtype; -}; - - -/* CODA_SIGNAL is out-of-band, doesn't need data. */ -/* CODA_INVALIDATE is a venus->kernel call */ -/* CODA_FLUSH is a venus->kernel call */ - -/* coda_purgeuser: */ -/* CODA_PURGEUSER is a venus->kernel call */ -struct coda_purgeuser_out { - struct coda_out_hdr oh; -#ifdef CODA_COMPAT_5 - struct coda_cred cred; -#else - cuid_t uid; -#endif -}; - -/* coda_zapfile: */ -/* CODA_ZAPFILE is a venus->kernel call */ -struct coda_zapfile_out { - struct coda_out_hdr oh; - struct CodaFid Fid; -}; - -/* coda_zapdir: */ -/* CODA_ZAPDIR is a venus->kernel call */ -struct coda_zapdir_out { - struct coda_out_hdr oh; - struct CodaFid Fid; -}; - -/* coda_zapnode: */ -/* CODA_ZAPVNODE is a venus->kernel call */ -struct coda_zapvnode_out { - struct coda_out_hdr oh; -#ifdef CODA_COMPAT_5 - struct coda_cred cred; -#endif - struct CodaFid Fid; -}; - -/* coda_purgefid: */ -/* CODA_PURGEFID is a venus->kernel call */ -struct coda_purgefid_out { - struct coda_out_hdr oh; - struct CodaFid Fid; -}; - -/* coda_replace: */ -/* CODA_REPLACE is a venus->kernel call */ -struct coda_replace_out { /* coda_replace is a venus->kernel call */ - struct coda_out_hdr oh; - struct CodaFid NewFid; - struct CodaFid OldFid; -}; - -/* coda_open_by_fd: */ -struct coda_open_by_fd_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int flags; -}; - -struct coda_open_by_fd_out { - struct coda_out_hdr oh; - int fd; -#ifdef _KERNEL - /* not passed from userspace but used in-kernel only */ - struct vnode *vp; -#endif -}; - -/* coda_open_by_path: */ -struct coda_open_by_path_in { - struct coda_in_hdr ih; - struct CodaFid Fid; - int flags; -}; - -struct coda_open_by_path_out { - struct coda_out_hdr oh; - int path; -}; - -/* coda_statfs: NO_IN */ -struct coda_statfs_in { - struct coda_in_hdr ih; -}; - -struct coda_statfs_out { - struct coda_out_hdr oh; - struct coda_statfs stat; -}; - -/* - * Occasionally, we don't cache the fid returned by CODA_LOOKUP. - * For instance, if the fid is inconsistent. - * This case is handled by setting the top bit of the type result parameter. - */ -#define CODA_NOCACHE 0x80000000 - -union inputArgs { - struct coda_in_hdr ih; /* NB: every struct below begins with an ih */ - struct coda_open_in coda_open; - struct coda_close_in coda_close; - struct coda_ioctl_in coda_ioctl; - struct coda_getattr_in coda_getattr; - struct coda_setattr_in coda_setattr; - struct coda_access_in coda_access; - struct coda_lookup_in coda_lookup; - struct coda_create_in coda_create; - struct coda_remove_in coda_remove; - struct coda_link_in coda_link; - struct coda_rename_in coda_rename; - struct coda_mkdir_in coda_mkdir; - struct coda_rmdir_in coda_rmdir; - struct coda_readdir_in coda_readdir; - struct coda_symlink_in coda_symlink; - struct coda_readlink_in coda_readlink; - struct coda_fsync_in coda_fsync; - struct coda_vget_in coda_vget; - struct coda_open_by_fd_in coda_open_by_fd; - struct coda_open_by_path_in coda_open_by_path; - struct coda_statfs_in coda_statfs; -}; - -union outputArgs { - struct coda_out_hdr oh; /* NB: every struct below begins with an oh */ - struct coda_root_out coda_root; - struct coda_open_out coda_open; - struct coda_ioctl_out coda_ioctl; - struct coda_getattr_out coda_getattr; - struct coda_lookup_out coda_lookup; - struct coda_create_out coda_create; - struct coda_mkdir_out coda_mkdir; - struct coda_readdir_out coda_readdir; - struct coda_readlink_out coda_readlink; - struct coda_vget_out coda_vget; - struct coda_purgeuser_out coda_purgeuser; - struct coda_zapfile_out coda_zapfile; - struct coda_zapdir_out coda_zapdir; - struct coda_zapvnode_out coda_zapvnode; - struct coda_purgefid_out coda_purgefid; - struct coda_replace_out coda_replace; - struct coda_open_by_fd_out coda_open_by_fd; - struct coda_open_by_path_out coda_open_by_path; - struct coda_statfs_out coda_statfs; -}; - -union coda_downcalls { - /* CODA_INVALIDATE is a venus->kernel call */ - /* CODA_FLUSH is a venus->kernel call */ - struct coda_purgeuser_out purgeuser; - struct coda_zapfile_out zapfile; - struct coda_zapdir_out zapdir; - struct coda_zapvnode_out zapvnode; - struct coda_purgefid_out purgefid; - struct coda_replace_out replace; -}; - - -/* - * Used for identifying usage of "Control" and pioctls - */ - -#define PIOCPARM_MASK 0x0000ffff -struct ViceIoctl { - caddr_t in, out; /* Data to be transferred in, or out */ - unsigned short in_size; /* Size of input buffer <= 8K */ - unsigned short out_size; /* Maximum size of output buffer, <= 8K */ -}; - -#if defined(__CYGWIN32__) || defined(DJGPP) -struct PioctlData { - unsigned long cmd; - const char *path; - int follow; - struct ViceIoctl vi; -}; -#else -struct PioctlData { - const char *path; - int follow; - struct ViceIoctl vi; -}; -#endif - -#define CODA_CONTROL ".CONTROL" -#define CODA_CONTROLLEN 8 -#define CTL_VOL -1 -#define CTL_VNO -1 -#define CTL_UNI -1 -#define CTL_INO -1 -#define CTL_FILE "/coda/.CONTROL" - -#ifdef CODA_COMPAT_5 -#define CTL_FID { -1, -1, -1 } -#define IS_CTL_FID(fidp) ((fidp)->Volume == -1 &&\ - (fidp)->Vnode == -1 &&\ - (fidp)->Unique == -1) -#define INVAL_FID { 0, 0, 0 } -#else -#define CTL_FID { { -1, -1, -1, -1 } } -#define IS_CTL_FID(fidp) ((fidp)->opaque[1] == CTL_VOL && \ - (fidp)->opaque[2] == CTL_VNO && \ - (fidp)->opaque[3] == CTL_UNI) -#define INVAL_FID { { 0, 0, 0, 0 } } -#endif - -/* Data passed to mount */ - -#define CODA_MOUNT_VERSION 1 - -struct coda_mount_data { - int version; - int fd; /* Opened device */ -}; - -#endif - diff --git a/sys/fs/coda/coda_fbsd.c b/sys/fs/coda/coda_fbsd.c deleted file mode 100644 index 62d0857..0000000 --- a/sys/fs/coda/coda_fbsd.c +++ /dev/null @@ -1,148 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_fbsd.cr,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/conf.h> -#include <sys/fcntl.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/module.h> -#include <sys/ucred.h> -#include <sys/vnode.h> - -#include <vm/vm.h> -#include <vm/vnode_pager.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_vnops.h> -#include <fs/coda/coda_psdev.h> - -static struct cdevsw codadevsw = { - .d_version = D_VERSION, - .d_flags = D_NEEDGIANT, - .d_open = vc_open, - .d_close = vc_close, - .d_read = vc_read, - .d_write = vc_write, - .d_ioctl = vc_ioctl, - .d_poll = vc_poll, - .d_name = "coda", -}; - -static eventhandler_tag clonetag; - -static LIST_HEAD(, coda_mntinfo) coda_mnttbl; - -/* - * For DEVFS, using bpf & tun drivers as examples. - * - * XXX: Why use a cloned interface, aren't we really just interested in - * having a single /dev/cfs0? It's not clear the coda module knows what to - * do with more than one. - */ -static void coda_fbsd_clone(void *arg, struct ucred *cred, char *name, - int namelen, struct cdev **dev); - -static int -codadev_modevent(module_t mod, int type, void *data) -{ - struct coda_mntinfo *mnt; - - switch (type) { - case MOD_LOAD: - LIST_INIT(&coda_mnttbl); - clonetag = EVENTHANDLER_REGISTER(dev_clone, coda_fbsd_clone, - 0, 1000); - break; - - case MOD_UNLOAD: - /* - * XXXRW: At the very least, a busy check should occur here - * to prevent untimely unload. Much more serious collection - * of allocated memory needs to take place; right now we leak - * like a sieve. - */ - EVENTHANDLER_DEREGISTER(dev_clone, clonetag); - while ((mnt = LIST_FIRST(&coda_mnttbl)) != NULL) { - LIST_REMOVE(mnt, mi_list); - destroy_dev(mnt->dev); - free(mnt, M_CODA); - } - break; - - default: - return (EOPNOTSUPP); - } - return (0); -} - -static moduledata_t codadev_mod = { - "codadev", - codadev_modevent, - NULL -}; -DECLARE_MODULE(codadev, codadev_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); - -static void -coda_fbsd_clone(void *arg, struct ucred *cred, char *name, int namelen, - struct cdev **dev) -{ - struct coda_mntinfo *mnt; - int u; - - if (*dev != NULL) - return; - if (dev_stdclone(name, NULL, "cfs", &u) != 1) - return; - *dev = make_dev(&codadevsw, u, UID_ROOT, GID_WHEEL, 0600, - "cfs%d", u); - dev_ref(*dev); - mnt = malloc(sizeof(struct coda_mntinfo), M_CODA, M_WAITOK|M_ZERO); - LIST_INSERT_HEAD(&coda_mnttbl, mnt, mi_list); - mnt->dev = *dev; -} - -struct coda_mntinfo * -dev2coda_mntinfo(struct cdev *dev) -{ - struct coda_mntinfo *mnt; - - LIST_FOREACH(mnt, &coda_mnttbl, mi_list) { - if (mnt->dev == dev) - return (mnt); - } - return (NULL); -} diff --git a/sys/fs/coda/coda_io.h b/sys/fs/coda/coda_io.h deleted file mode 100644 index 6058cf0..0000000 --- a/sys/fs/coda/coda_io.h +++ /dev/null @@ -1,73 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_io.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - * - */ - -/*- - * Mach Operating System - * Copyright (c) 1990 Carnegie-Mellon University - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon University. - * Contributers include David Steere, James Kistler, and M. Satyanarayanan. - */ - -#ifndef _CODAIO_H_ -#define _CODAIO_H_ - -/* - * Define ioctl commands for vcioctl, /dev/cfs. - * - * Resize Coda namecache. - */ -#define CODARESIZE _IOW('c', 1, struct coda_resize) - -/* - * Collect statistics. - */ -#define CODASTATS _IO('c', 2) - -/* - * Print cache. - */ -#define CODAPRINT _IO('c', 3) -#define CODATEST _IO('c', 4) - -struct coda_resize { - int hashsize; - int heapsize; -}; - -#endif /* !_CODAIO_H_ */ diff --git a/sys/fs/coda/coda_opstats.h b/sys/fs/coda/coda_opstats.h deleted file mode 100644 index 36805e8..0000000 --- a/sys/fs/coda/coda_opstats.h +++ /dev/null @@ -1,130 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_opstats.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - * - */ - -#ifndef _CODA_OPSTATS_H_ -#define _CODA_OPSTATS_H_ - -/* - * Operation stats: what the minicache can intercept that *isn't* seen by - * venus. These stats are kept to augment the stats maintained by the - * Volume-Session mechanism. - */ - -/*- - * vfsops: - * mount: not currently bounced to Venus - * umount: nope - * root: only first call, rest is cached. - * statfs: none (bogus) - * sync: none (bogus) - * vget: all - */ -#define CODA_MOUNT_STATS 0 -#define CODA_UMOUNT_STATS 1 -#define CODA_ROOT_STATS 2 -#define CODA_STATFS_STATS 3 -#define CODA_SYNC_STATS 4 -#define CODA_VGET_STATS 5 -#define CODA_VFSOPS_SIZE 6 - -/*- - * vnodeops: - * open: all to venus - * close: all to venus - * rdrw: bogus. Maybe redirected to UFS. - * May call open/close for internal opens/closes - * (Does exec not call open?) - * ioctl: causes a lookupname - * passes through - * select: can't get there from here. - * getattr: can be satsified by cache - * setattr: all go through - * access: can be satisfied by cache - * readlink: can be satisfied by cache - * fsync: passes through - * inactive: passes through - * lookup: can be satisfied by cache - * create: passes through - * remove: passes through - * link: passes through - * rename: passes through - * mkdir: passes through - * rmdir: passes through - * symlink: passes through - * readdir: may be redirected to UFS - * may cause an "internal" open/close - */ -#define CODA_OPEN_STATS 0 -#define CODA_CLOSE_STATS 1 -#define CODA_RDWR_STATS 2 -#define CODA_IOCTL_STATS 3 -#define CODA_SELECT_STATS 4 -#define CODA_GETATTR_STATS 5 -#define CODA_SETATTR_STATS 6 -#define CODA_ACCESS_STATS 7 -#define CODA_READLINK_STATS 8 -#define CODA_FSYNC_STATS 9 -#define CODA_INACTIVE_STATS 10 -#define CODA_LOOKUP_STATS 11 -#define CODA_CREATE_STATS 12 -#define CODA_REMOVE_STATS 13 -#define CODA_LINK_STATS 14 -#define CODA_RENAME_STATS 15 -#define CODA_MKDIR_STATS 16 -#define CODA_RMDIR_STATS 17 -#define CODA_SYMLINK_STATS 18 -#define CODA_READDIR_STATS 19 -#define CODA_VNODEOPS_SIZE 20 - -/* - * I propose the following structres: - */ -struct coda_op_stats { - int opcode; /* vfs opcode */ - long entries; /* number of times call attempted */ - long sat_intrn; /* number of times call satisfied by cache */ - long unsat_intrn; /* number of times call failed in cache, but */ - /* was not bounced to venus proper. */ - long gen_intrn; /* number of times call generated internally */ - /* (do we need that?) */ -}; - -/* - * With each call to the minicache, we'll bump the counters whenver a call is - * satisfied internally (through the cache or through a redirect), and - * whenever an operation is caused internally. Then, we can add the total - * operations caught by the minicache to the world-wide totals, and leave a - * caveat for the specific graphs later. - */ - -#endif /* !_CODA_OPSTATS_H_ */ diff --git a/sys/fs/coda/coda_pioctl.h b/sys/fs/coda/coda_pioctl.h deleted file mode 100644 index 3c9d0c6..0000000 --- a/sys/fs/coda/coda_pioctl.h +++ /dev/null @@ -1,69 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_pioctl.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - * - */ - -/*- - * Mach Operating System - * Copyright (c) 1989 Carnegie-Mellon University - * Copyright (c) 1988 Carnegie-Mellon University - * Copyright (c) 1987 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * ITC Remote filesystem - vice ioctl interface module - * - * TODO: Find /usr/local/include/viceioctl.h. - */ - -#ifndef _SYS_PIOCTL_H_ -#define _SYS_PIOCTL_H_ - -/* - * The 2K limits above are a consequence of the size of the kernel buffer - * used to buffer requests from the user to venus--2*MAXPATHLEN. The buffer - * pointers may be null, or the counts may be 0 if there are no input or - * output parameters. - */ -#define _VICEIOCTL(id) ((unsigned int )_IOW('V', id, struct ViceIoctl)) - -/* - * Use this macro to define up to 256 vice ioctl's. These ioctl's all - * potentially have in/out parameters--this depends upon the values in the - * ViceIoctl structure. This structure is itself passed into the kernel by - * the normal ioctl parameter passing mechanism. - */ -#define _VALIDVICEIOCTL(com) (com >= _VICEIOCTL(0) && \ - com <= _VICEIOCTL(255)) - -#endif /* !_SYS_PIOCTL_H_ */ diff --git a/sys/fs/coda/coda_psdev.c b/sys/fs/coda/coda_psdev.c deleted file mode 100644 index e982a2c..0000000 --- a/sys/fs/coda/coda_psdev.c +++ /dev/null @@ -1,675 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ -/*- - * Mach Operating System - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon - * University. Contributers include David Steere, James Kistler, and - * M. Satyanarayanan. */ - -/* - * These routines define the psuedo device for communication between Coda's - * Venus and Minicache in Mach 2.6. They used to be in cfs_subr.c, but I - * moved them to make it easier to port the Minicache without porting coda. - * -- DCS 10/12/94 - */ - -/* - * These routines are the device entry points for Venus. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/capability.h> -#include <sys/conf.h> -#include <sys/ioccom.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/file.h> /* must come after sys/malloc.h */ -#include <sys/mount.h> -#include <sys/mutex.h> -#include <sys/poll.h> -#include <sys/proc.h> -#include <sys/filedesc.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_io.h> -#include <fs/coda/coda_psdev.h> - -/* - * Variables to determine how Coda sleeps and whether or not it is - * interruptible when it does sleep waiting for Venus. - */ -/* #define CTL_C */ - -#ifdef CTL_C -#include <sys/signalvar.h> -#endif - -int coda_psdev_print_entry = 0; -static int outstanding_upcalls = 0; -int coda_call_sleep = PZERO - 1; -#ifdef CTL_C -int coda_pcatch = PCATCH; -#else -#endif - -#define ENTRY do { \ - if (coda_psdev_print_entry) \ - myprintf(("Entered %s\n", __func__)); \ -} while (0) - -struct vmsg { - TAILQ_ENTRY(vmsg) vm_chain; - caddr_t vm_data; - u_short vm_flags; - u_short vm_inSize; /* Size is at most 5000 bytes */ - u_short vm_outSize; - u_short vm_opcode; /* Copied from data to save ptr deref */ - int vm_unique; - caddr_t vm_sleep; /* Not used by Mach. */ -}; - -#define VM_READ 1 -#define VM_WRITE 2 -#define VM_INTR 4 /* Unused. */ - -int -vc_open(struct cdev *dev, int flag, int mode, struct thread *td) -{ - struct vcomm *vcp; - struct coda_mntinfo *mnt; - - ENTRY; - mnt = dev2coda_mntinfo(dev); - KASSERT(mnt, ("Coda: tried to open uninitialized cfs device")); - vcp = &mnt->mi_vcomm; - if (VC_OPEN(vcp)) - return (EBUSY); - bzero(&(vcp->vc_selproc), sizeof (struct selinfo)); - TAILQ_INIT(&vcp->vc_requests); - TAILQ_INIT(&vcp->vc_replies); - MARK_VC_OPEN(vcp); - mnt->mi_vfsp = NULL; - mnt->mi_rootvp = NULL; - return (0); -} - -int -vc_close(struct cdev *dev, int flag, int mode, struct thread *td) -{ - struct vcomm *vcp; - struct vmsg *vmp, *nvmp = NULL; - struct coda_mntinfo *mi; - int err; - - ENTRY; - mi = dev2coda_mntinfo(dev); - KASSERT(mi, ("Coda: closing unknown cfs device")); - vcp = &mi->mi_vcomm; - KASSERT(VC_OPEN(vcp), ("Coda: closing unopened cfs device")); - - /* - * Prevent future operations on this vfs from succeeding by - * auto-unmounting any vfs mounted via this device. This frees user - * or sysadm from having to remember where all mount points are - * located. Put this before WAKEUPs to avoid queuing new messages - * between the WAKEUP and the unmount (which can happen if we're - * unlucky). - */ - if (mi->mi_rootvp == NULL) { - /* - * Just a simple open/close with no mount. - */ - MARK_VC_CLOSED(vcp); - return (0); - } - - /* - * Let unmount know this is for real. - */ - VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING; - coda_unmounting(mi->mi_vfsp); - - /* - * Wakeup clients so they can return. - */ - outstanding_upcalls = 0; - TAILQ_FOREACH_SAFE(vmp, &vcp->vc_requests, vm_chain, nvmp) { - /* - * Free signal request messages and don't wakeup cause no one - * is waiting. - */ - if (vmp->vm_opcode == CODA_SIGNAL) { - CODA_FREE((caddr_t)vmp->vm_data, - (u_int)VC_IN_NO_DATA); - CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg)); - continue; - } - outstanding_upcalls++; - wakeup(&vmp->vm_sleep); - } - TAILQ_FOREACH(vmp, &vcp->vc_replies, vm_chain) { - outstanding_upcalls++; - wakeup(&vmp->vm_sleep); - } - MARK_VC_CLOSED(vcp); - if (outstanding_upcalls) { -#ifdef CODA_VERBOSE - printf("presleep: outstanding_upcalls = %d\n", - outstanding_upcalls); -#endif - (void) tsleep(&outstanding_upcalls, coda_call_sleep, - "coda_umount", 0); -#ifdef CODA_VERBOSE - printf("postsleep: outstanding_upcalls = %d\n", - outstanding_upcalls); -#endif - } - err = dounmount(mi->mi_vfsp, flag, td); - if (err) - myprintf(("Error %d unmounting vfs in vcclose(%s)\n", err, - devtoname(dev))); - return (0); -} - -int -vc_read(struct cdev *dev, struct uio *uiop, int flag) -{ - struct vcomm *vcp; - struct vmsg *vmp; - int error = 0; - - ENTRY; - vcp = &dev2coda_mntinfo(dev)->mi_vcomm; - - /* - * Get message at head of request queue. - */ - vmp = TAILQ_FIRST(&vcp->vc_requests); - if (vmp == NULL) - return (0); /* Nothing to read */ - - /* - * Move the input args into userspace. - * - * XXXRW: This is not safe in the presence of >1 reader, as vmp is - * still on the head of the list. - */ - uiop->uio_rw = UIO_READ; - error = uiomove(vmp->vm_data, vmp->vm_inSize, uiop); - if (error) { - myprintf(("vcread: error (%d) on uiomove\n", error)); - error = EINVAL; - } - TAILQ_REMOVE(&vcp->vc_requests, vmp, vm_chain); - - /* - * If request was a signal, free up the message and don't enqueue it - * in the reply queue. - */ - if (vmp->vm_opcode == CODA_SIGNAL) { - if (codadebug) - myprintf(("vcread: signal msg (%d, %d)\n", - vmp->vm_opcode, vmp->vm_unique)); - CODA_FREE((caddr_t)vmp->vm_data, (u_int)VC_IN_NO_DATA); - CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg)); - return (error); - } - vmp->vm_flags |= VM_READ; - TAILQ_INSERT_TAIL(&vcp->vc_replies, vmp, vm_chain); - return (error); -} - -int -vc_write(struct cdev *dev, struct uio *uiop, int flag) -{ - struct vcomm *vcp; - struct vmsg *vmp; - struct coda_out_hdr *out; - u_long seq; - u_long opcode; - int buf[2]; - int error = 0; - - ENTRY; - vcp = &dev2coda_mntinfo(dev)->mi_vcomm; - - /* - * Peek at the opcode, unique without transfering the data. - */ - uiop->uio_rw = UIO_WRITE; - error = uiomove((caddr_t)buf, sizeof(int) * 2, uiop); - if (error) { - myprintf(("vcwrite: error (%d) on uiomove\n", error)); - return (EINVAL); - } - opcode = buf[0]; - seq = buf[1]; - if (codadebug) - myprintf(("vcwrite got a call for %ld.%ld\n", opcode, seq)); - if (DOWNCALL(opcode)) { - union outputArgs pbuf; - - /* - * Get the rest of the data. - */ - uiop->uio_rw = UIO_WRITE; - error = uiomove((caddr_t)&pbuf.coda_purgeuser.oh.result, - sizeof(pbuf) - (sizeof(int)*2), uiop); - if (error) { - myprintf(("vcwrite: error (%d) on uiomove (Op %ld " - "seq %ld)\n", error, opcode, seq)); - return (EINVAL); - } - return (handleDownCall(dev2coda_mntinfo(dev), opcode, &pbuf)); - } - - /* - * Look for the message on the (waiting for) reply queue. - */ - TAILQ_FOREACH(vmp, &vcp->vc_replies, vm_chain) { - if (vmp->vm_unique == seq) - break; - } - if (vmp == NULL) { - if (codadebug) - myprintf(("vcwrite: msg (%ld, %ld) not found\n", - opcode, seq)); - return (ESRCH); - } - - /* - * Remove the message from the reply queue. - */ - TAILQ_REMOVE(&vcp->vc_replies, vmp, vm_chain); - - /* - * Move data into response buffer. - */ - out = (struct coda_out_hdr *)vmp->vm_data; - - /* - * Don't need to copy opcode and uniquifier. - * - * Get the rest of the data. - */ - if (vmp->vm_outSize < uiop->uio_resid) { - myprintf(("vcwrite: more data than asked for (%d < %zd)\n", - vmp->vm_outSize, uiop->uio_resid)); - - /* - * Notify caller of the error. - */ - wakeup(&vmp->vm_sleep); - return (EINVAL); - } - - /* - * Save the value. - */ - buf[0] = uiop->uio_resid; - uiop->uio_rw = UIO_WRITE; - error = uiomove((caddr_t) &out->result, vmp->vm_outSize - - (sizeof(int) * 2), uiop); - if (error) { - myprintf(("vcwrite: error (%d) on uiomove (op %ld seq %ld)\n", - error, opcode, seq)); - return (EINVAL); - } - - /* - * I don't think these are used, but just in case. - * - * XXX - aren't these two already correct? -bnoble - */ - out->opcode = opcode; - out->unique = seq; - vmp->vm_outSize = buf[0]; /* Amount of data transferred? */ - vmp->vm_flags |= VM_WRITE; - error = 0; - if (opcode == CODA_OPEN_BY_FD) { - struct coda_open_by_fd_out *tmp = - (struct coda_open_by_fd_out *)out; - struct file *fp; - struct vnode *vp = NULL; - - if (tmp->oh.result == 0) { - error = getvnode(uiop->uio_td->td_proc->p_fd, CAP_WRITE, - tmp->fd, &fp); - if (!error) { - /* - * XXX: Since the whole driver runs with - * Giant, don't actually need to acquire it - * explicitly here yet. - */ - mtx_lock(&Giant); - vp = fp->f_vnode; - VREF(vp); - fdrop(fp, uiop->uio_td); - mtx_unlock(&Giant); - } - } - tmp->vp = vp; - } - wakeup(&vmp->vm_sleep); - return (error); -} - -int -vc_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, - struct thread *t) -{ - - ENTRY; - switch(cmd) { - case CODARESIZE: - return (ENODEV); - - case CODASTATS: - return (ENODEV); - - case CODAPRINT: - return (ENODEV); - - case CIOC_KERNEL_VERSION: - switch (*(u_int *)addr) { - case 0: - *(u_int *)addr = coda_kernel_version; - return (0); - - case 1: - case 2: - if (coda_kernel_version != *(u_int *)addr) - return (ENOENT); - else - return (0); - - default: - return (ENOENT); - } - - default: - return (EINVAL); - } -} - -int -vc_poll(struct cdev *dev, int events, struct thread *td) -{ - struct vcomm *vcp; - int event_msk = 0; - - ENTRY; - vcp = &dev2coda_mntinfo(dev)->mi_vcomm; - event_msk = events & (POLLIN|POLLRDNORM); - if (!event_msk) - return (0); - if (!TAILQ_EMPTY(&vcp->vc_requests)) - return (events & (POLLIN|POLLRDNORM)); - selrecord(td, &(vcp->vc_selproc)); - return (0); -} - -/* - * Statistics. - */ -struct coda_clstat coda_clstat; - -/* - * Key question: whether to sleep interuptably or uninteruptably when waiting - * for Venus. The former seems better (cause you can ^C a job), but then - * GNU-EMACS completion breaks. Use tsleep with no timeout, and no longjmp - * happens. But, when sleeping "uninterruptibly", we don't get told if it - * returns abnormally (e.g. kill -9). - */ -int -coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize, - caddr_t buffer) -{ - struct vcomm *vcp; - struct vmsg *vmp; - int error; -#ifdef CTL_C - struct thread *td = curthread; - struct proc *p = td->td_proc; - sigset_t psig_omask; - sigset_t tempset; - int i; -#endif - - /* - * Unlikely, but could be a race condition with a dying warden. - */ - if (mntinfo == NULL) - return ENODEV; - vcp = &(mntinfo->mi_vcomm); - coda_clstat.ncalls++; - coda_clstat.reqs[((struct coda_in_hdr *)buffer)->opcode]++; - if (!VC_OPEN(vcp)) - return (ENODEV); - CODA_ALLOC(vmp,struct vmsg *,sizeof(struct vmsg)); - - /* - * Format the request message. - */ - vmp->vm_data = buffer; - vmp->vm_flags = 0; - vmp->vm_inSize = inSize; - vmp->vm_outSize - = *outSize ? *outSize : inSize; /* |buffer| >= inSize */ - vmp->vm_opcode = ((struct coda_in_hdr *)buffer)->opcode; - vmp->vm_unique = ++vcp->vc_seq; - if (codadebug) - myprintf(("Doing a call for %d.%d\n", vmp->vm_opcode, - vmp->vm_unique)); - - /* - * Fill in the common input args. - */ - ((struct coda_in_hdr *)buffer)->unique = vmp->vm_unique; - - /* - * Append msg to request queue and poke Venus. - */ - TAILQ_INSERT_TAIL(&vcp->vc_requests, vmp, vm_chain); - selwakeuppri(&(vcp->vc_selproc), coda_call_sleep); - - /* - * We can be interrupted while we wait for Venus to process our - * request. If the interrupt occurs before Venus has read the - * request, we dequeue and return. If it occurs after the read but - * before the reply, we dequeue, send a signal message, and return. - * If it occurs after the reply we ignore it. In no case do we want - * to restart the syscall. If it was interrupted by a venus shutdown - * (vcclose), return ENODEV. - * - * Ignore return, we have to check anyway. - */ -#ifdef CTL_C - /* - * This is work in progress. Setting coda_pcatch lets tsleep - * reawaken on a ^c or ^z. The problem is that emacs sets certain - * interrupts as SA_RESTART. This means that we should exit sleep - * handle the "signal" and then go to sleep again. Mostly this is - * done by letting the syscall complete and be restarted. We are not - * idempotent and can not do this. A better solution is necessary. - */ - i = 0; - PROC_LOCK(p); - psig_omask = td->td_sigmask; - do { - error = msleep(&vmp->vm_sleep, &p->p_mtx, - (coda_call_sleep|coda_pcatch), "coda_call", hz*2); - if (error == 0) - break; - else if (error == EWOULDBLOCK) { -#ifdef CODA_VERBOSE - printf("coda_call: tsleep TIMEOUT %d sec\n", 2+2*i); -#endif - } - else { - SIGEMPTYSET(tempset); - SIGADDSET(tempset, SIGIO); - if (SIGSETEQ(td->td_siglist, tempset)) { - SIGADDSET(td->td_sigmask, SIGIO); -#ifdef CODA_VERBOSE - printf("coda_call: tsleep returns %d SIGIO, " - "cnt %d\n", error, i); -#endif - } else { - SIGDELSET(tempset, SIGIO); - SIGADDSET(tempset, SIGALRM); - if (SIGSETEQ(td->td_siglist, tempset)) { - SIGADDSET(td->td_sigmask, SIGALRM); -#ifdef CODA_VERBOSE - printf("coda_call: tsleep returns " - "%d SIGALRM, cnt %d\n", error, i); -#endif - } else { -#ifdef CODA_VERBOSE - printf("coda_call: tsleep returns " - "%d, cnt %d\n", error, i); -#endif - -#ifdef notyet - tempset = td->td_siglist; - SIGSETNAND(tempset, td->td_sigmask); - printf("coda_call: siglist = %p, " - "sigmask = %p, mask %p\n", - td->td_siglist, td->td_sigmask, - tempset); - break; - SIGSETOR(td->td_sigmask, td->td_siglist); - tempset = td->td_siglist; - SIGSETNAND(tempset, td->td_sigmask); - printf("coda_call: new mask, " - "siglist = %p, sigmask = %p, " - "mask %p\n", td->td_siglist, - td->td_sigmask, tempset); -#endif - } - } - } - } while (error && i++ < 128 && VC_OPEN(vcp)); - td->td_sigmask = psig_omask; - signotify(td); - PROC_UNLOCK(p); -#else - (void)tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0); -#endif - if (VC_OPEN(vcp)) { - /* - * Venus is still alive. - * - * Op went through, interrupt or not... - */ - if (vmp->vm_flags & VM_WRITE) { - error = 0; - *outSize = vmp->vm_outSize; - } else if (!(vmp->vm_flags & VM_READ)) { - /* Interrupted before venus read it. */ -#ifdef CODA_VERBOSE - if (1) -#else - if (codadebug) -#endif - myprintf(("interrupted before read: op = " - "%d.%d, flags = %x\n", vmp->vm_opcode, - vmp->vm_unique, vmp->vm_flags)); - TAILQ_REMOVE(&vcp->vc_requests, vmp, vm_chain); - error = EINTR; - } else { - /* - * (!(vmp->vm_flags & VM_WRITE)) means interrupted - * after upcall started. - * - * Interrupted after start of upcall, send venus a - * signal. - */ - struct coda_in_hdr *dog; - struct vmsg *svmp; - -#ifdef CODA_VERBOSE - if (1) -#else - if (codadebug) -#endif - myprintf(("Sending Venus a signal: op = " - "%d.%d, flags = %x\n", vmp->vm_opcode, - vmp->vm_unique, vmp->vm_flags)); - TAILQ_REMOVE(&vcp->vc_requests, vmp, vm_chain); - error = EINTR; - CODA_ALLOC(svmp, struct vmsg *, sizeof(struct vmsg)); - CODA_ALLOC((svmp->vm_data), char *, - sizeof(struct coda_in_hdr)); - dog = (struct coda_in_hdr *)svmp->vm_data; - svmp->vm_flags = 0; - dog->opcode = svmp->vm_opcode = CODA_SIGNAL; - dog->unique = svmp->vm_unique = vmp->vm_unique; - svmp->vm_inSize = sizeof (struct coda_in_hdr); -/*??? rvb */ svmp->vm_outSize = sizeof (struct coda_in_hdr); - if (codadebug) - myprintf(("coda_call: enqueing signal msg " - "(%d, %d)\n", svmp->vm_opcode, - svmp->vm_unique)); - - /* - * Insert at head of queue! - * - * XXXRW: Actually, the tail. - */ - TAILQ_INSERT_TAIL(&vcp->vc_requests, svmp, vm_chain); - selwakeuppri(&(vcp->vc_selproc), coda_call_sleep); - } - } else { - /* If venus died (!VC_OPEN(vcp)) */ - if (codadebug) - myprintf(("vcclose woke op %d.%d flags %d\n", - vmp->vm_opcode, vmp->vm_unique, vmp->vm_flags)); - error = ENODEV; - } - CODA_FREE(vmp, sizeof(struct vmsg)); - if (outstanding_upcalls > 0 && (--outstanding_upcalls == 0)) - wakeup(&outstanding_upcalls); - if (!error) - error = ((struct coda_out_hdr *)buffer)->result; - return (error); -} diff --git a/sys/fs/coda/coda_psdev.h b/sys/fs/coda/coda_psdev.h deleted file mode 100644 index 021456b..0000000 --- a/sys/fs/coda/coda_psdev.h +++ /dev/null @@ -1,46 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - */ - -#ifndef _CODA_PSDEV_H_ -#define _CODA_PSDEV_H_ - -/* - * Prototypes for cfs device operations. - */ -d_open_t vc_open; -d_close_t vc_close; -d_read_t vc_read; -d_write_t vc_write; -d_ioctl_t vc_ioctl; -d_poll_t vc_poll; - -#endif /* !_CODA_PSDEV_H_ */ diff --git a/sys/fs/coda/coda_subr.c b/sys/fs/coda/coda_subr.c deleted file mode 100644 index a7ae354..0000000 --- a/sys/fs/coda/coda_subr.c +++ /dev/null @@ -1,628 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_subr.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ - -/*- - * Mach Operating System - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon - * University. Contributers include David Steere, James Kistler, and - * M. Satyanarayanan. - */ - -/*- - * NOTES: rvb - * 1. Added coda_unmounting to mark all cnodes as being UNMOUNTING. This - * has to be done before dounmount is called. Because some of the - * routines that dounmount calls before coda_unmounted might try to - * force flushes to venus. The vnode pager does this. - * 2. coda_unmounting marks all cnodes scanning coda_cache. - * 3. cfs_checkunmounting (under DEBUG) checks all cnodes by chasing the - * vnodes under the /coda mount point. - * 4. coda_cacheprint (under DEBUG) prints names with vnode/cnode address. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/mutex.h> -#include <sys/mount.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_subr.h> - -static int coda_active = 0; -static int coda_reuse = 0; -static int coda_new = 0; - -static struct cnode *coda_freelist = NULL; -static struct cnode *coda_cache[CODA_CACHESIZE]; - -#define CNODE_NEXT(cp) ((cp)->c_next) - -#ifdef CODA_COMPAT_5 -#define coda_hash(fid) (((fid)->Volume + (fid)->Vnode) & (CODA_CACHESIZE-1)) -#define IS_DIR(cnode) (cnode.Vnode & 0x1) -#else -#define coda_hash(fid) (coda_f2i(fid) & (CODA_CACHESIZE-1)) -#define IS_DIR(cnode) (cnode.opaque[2] & 0x1) -#endif - -/* - * Allocate a cnode. - */ -struct cnode * -coda_alloc(void) -{ - struct cnode *cp; - - if (coda_freelist != NULL) { - cp = coda_freelist; - coda_freelist = CNODE_NEXT(cp); - coda_reuse++; - } else { - CODA_ALLOC(cp, struct cnode *, sizeof(struct cnode)); - - /* - * FreeBSD vnodes don't have any Pager info in them ('cause - * there are no external pagers, duh!). - */ -#define VNODE_VM_INFO_INIT(vp) /* MT */ - VNODE_VM_INFO_INIT(CTOV(cp)); - coda_new++; - } - bzero(cp, sizeof (struct cnode)); - return (cp); -} - -/* - * Deallocate a cnode. - */ -void -coda_free(struct cnode *cp) -{ - - CNODE_NEXT(cp) = coda_freelist; - coda_freelist = cp; -} - -/* - * Put a cnode in the hash table. - */ -void -coda_save(struct cnode *cp) -{ - - CNODE_NEXT(cp) = coda_cache[coda_hash(&cp->c_fid)]; - coda_cache[coda_hash(&cp->c_fid)] = cp; -} - -/* - * Remove a cnode from the hash table. - */ -void -coda_unsave(struct cnode *cp) -{ - struct cnode *ptr; - struct cnode *ptrprev = NULL; - - ptr = coda_cache[coda_hash(&cp->c_fid)]; - while (ptr != NULL) { - if (ptr == cp) { - if (ptrprev == NULL) - coda_cache[coda_hash(&cp->c_fid)] = - CNODE_NEXT(ptr); - else - CNODE_NEXT(ptrprev) = CNODE_NEXT(ptr); - CNODE_NEXT(cp) = (struct cnode *)NULL; - return; - } - ptrprev = ptr; - ptr = CNODE_NEXT(ptr); - } -} - -/* - * Lookup a cnode by fid. If the cnode is dying, it is bogus so skip it. - * - * NOTE: this allows multiple cnodes with same fid -- dcs 1/25/95 - */ -struct cnode * -coda_find(struct CodaFid *fid) -{ - struct cnode *cp; - - cp = coda_cache[coda_hash(fid)]; - while (cp) { - if (coda_fid_eq(&(cp->c_fid), fid) && (!IS_UNMOUNTING(cp))) { - coda_active++; - return (cp); - } - cp = CNODE_NEXT(cp); - } - return (NULL); -} - -/* - * Clear all cached access control decisions from Coda. - */ -static void -coda_acccache_purge(struct mount *mnt) -{ - struct cnode *cp; - int hash; - - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) { - if (CTOV(cp)->v_mount == mnt && VALID_ACCCACHE(cp)) { - CODADEBUG(CODA_FLUSH, myprintf(("acccache " - "purge fid %s uid %d mode 0x%x\n", - coda_f2s(&cp->c_fid), cp->c_cached_uid, - (int)cp->c_cached_mode));); - cp->c_flags &= ~C_ACCCACHE; - } - } - } -} - -/* - * When a user loses their tokens (or other related events), we invalidate - * any cached access rights in the access cache. In the Linux version of - * Coda, we maintain a global epoch and simply bump it to invalidate all - * cached results generated in the epoch. For now, we walk all cnodes and - * manually invalidate just that uid in FreeBSD. - */ -static void -coda_acccache_purgeuser(struct mount *mnt, uid_t uid) -{ - struct cnode *cp; - int hash; - - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) { - if (CTOV(cp)->v_mount == mnt && - VALID_ACCCACHE(cp) && (cp->c_cached_uid == uid)) { - CODADEBUG(CODA_PURGEUSER, myprintf(( - "acccache purgeuser fid %s uid %d mode " - "0x%x\n", coda_f2s(&cp->c_fid), - cp->c_cached_uid, (int)cp->c_cached_mode));); - cp->c_flags &= ~C_ACCCACHE; - } - } - } -} - -/* - * coda_kill is called as a side effect to vcopen. To prevent any cnodes - * left around from an earlier run of a venus or warden from causing problems - * with the new instance, mark any outstanding cnodes as dying. Future - * operations on these cnodes should fail (excepting coda_inactive of - * course!). Since multiple venii/wardens can be running, only kill the - * cnodes for a particular entry in the coda_mnttbl. -- DCS 12/1/94 - * - * XXX: I don't believe any special behavior is required with respect to the - * global namecache here, as /coda will have unmounted and hence cache_flush - * will have run...? - */ -int -coda_kill(struct mount *whoIam, enum dc_status dcstat) -{ - int hash, count = 0; - struct cnode *cp; - - /*- - * Algorithm is as follows: - * Second, flush whatever vnodes we can from the name cache. - * - * Finally, step through whatever is left and mark them dying. - * This prevents any operation at all. - * - * This is slightly overkill, but should work. Eventually it'd be - * nice to only flush those entries from the namecache that reference - * a vnode in this vfs. - * - * XXXRW: Perhaps we no longer need to purge the name cache when - * using the VFS name cache, as unmount will do that. - */ - cache_purgevfs(whoIam); - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash];cp != NULL; - cp = CNODE_NEXT(cp)) { - if (CTOV(cp)->v_mount == whoIam) { -#ifdef DEBUG - printf("coda_kill: vp %p, cp %p\n", CTOV(cp), - cp); -#endif - count++; - CODADEBUG(CODA_FLUSH, myprintf(("Live cnode " - "fid %s flags %d count %d\n", - coda_f2s(&cp->c_fid), cp->c_flags, - vrefcnt(CTOV(cp))));); - } - } - } - return (count); -} - -/* - * There are two reasons why a cnode may be in use, it may be in the name - * cache or it may be executing. - */ -void -coda_flush(struct coda_mntinfo *mnt, enum dc_status dcstat) -{ - int hash; - struct cnode *cp; - - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_FLUSH]++; - - coda_acccache_purge(mnt->mi_vfsp); - cache_purgevfs(mnt->mi_vfsp); - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) { - /* - * Only files that can be executed need to be flushed - * from the VM. - * - * NOTE: Currently this doesn't do anything, but - * perhaps it should? - */ - if (!IS_DIR(cp->c_fid)) - coda_vmflush(cp); - } - } -} - -/* - * As a debugging measure, print out any cnodes that lived through a name - * cache flush. - */ -void -coda_testflush(void) -{ - int hash; - struct cnode *cp; - - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) - myprintf(("Live cnode fid %s count %d\n", - coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount)); - } -} - -/* - * First, step through all cnodes and mark them unmounting. FreeBSD kernels - * may try to fsync them now that venus is dead, which would be a bad thing. - */ -void -coda_unmounting(struct mount *whoIam) -{ - int hash; - struct cnode *cp; - - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) { - if (CTOV(cp)->v_mount == whoIam) { - if (cp->c_flags & (C_LOCKED|C_WANTED)) { - printf("coda_unmounting: Unlocking " - "%p\n", cp); - cp->c_flags &= ~(C_LOCKED|C_WANTED); - wakeup((caddr_t) cp); - } - cp->c_flags |= C_UNMOUNTING; - } - } - } -} - -#ifdef DEBUG -void -coda_checkunmounting(struct mount *mp) -{ - struct vnode *vp, *nvp; - struct cnode *cp; - int count = 0, bad = 0; - - MNT_VNODE_FOREACH_ALL(vp, mp, nvp) { - cp = VTOC(vp); - count++; - if (!(cp->c_flags & C_UNMOUNTING)) { - bad++; - printf("vp %p, cp %p missed\n", vp, cp); - cp->c_flags |= C_UNMOUNTING; - } - VI_UNLOCK(vp); - } -} - -void -coda_cacheprint(struct mount *whoIam) -{ - int hash; - struct cnode *cp; - int count = 0; - - printf("coda_cacheprint: coda_ctlvp %p, cp %p", coda_ctlvp, - VTOC(coda_ctlvp)); - -#if 0 - coda_nc_name(VTOC(coda_ctlvp)); -#endif - printf("\n"); - for (hash = 0; hash < CODA_CACHESIZE; hash++) { - for (cp = coda_cache[hash]; cp != NULL; - cp = CNODE_NEXT(cp)) { - if (CTOV(cp)->v_mount == whoIam) { - printf("coda_cacheprint: vp %p, cp %p", - CTOV(cp), cp); -#if 0 - coda_nc_name(cp); -#endif - printf("\n"); - count++; - } - } - } - printf("coda_cacheprint: count %d\n", count); -} -#endif - -/*- - * There are 6 cases where invalidations occur. The semantics of each is - * listed here: - * - * CODA_FLUSH -- Flush all entries from the name cache and the cnode - * cache. - * - * CODA_PURGEUSER -- Flush all entries from the name cache for a specific - * user. This call is a result of token expiration. - * - * The next two are the result of callbacks on a file or directory: - * - * CODA_ZAPDIR -- Flush the attributes for the dir from its cnode. Zap - * all children of this directory from the namecache. - * - * CODA_ZAPFILE -- Flush the attributes for a file. - * - * The fifth is a result of Venus detecting an inconsistent file: - * - * CODA_PURGEFID -- Flush the attribute for the file; if it is a dir (odd - * vnode), purge its children from the namecache; remove - * the file from the namecache. - * - * The sixth allows Venus to replace local fids with global ones during - * reintegration. - * - * CODA_REPLACE -- Replace one CodaFid with another throughout the name - * cache. - */ -int -handleDownCall(struct coda_mntinfo *mnt, int opcode, union outputArgs *out) -{ - int error; - - /* - * Handle invalidate requests. - */ - switch (opcode) { - case CODA_FLUSH: { - coda_flush(mnt, IS_DOWNCALL); - - /* Print any remaining cnodes. */ - CODADEBUG(CODA_FLUSH, coda_testflush();); - return (0); - } - - case CODA_PURGEUSER: { - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_PURGEUSER]++; - - /* XXX - need to prevent fsync's. */ - - /* - * Purge any access cache entries for the uid. - */ -#ifdef CODA_COMPAT_5 - coda_acccache_purgeuser(mnt->mi_vfsp, - out->coda_purgeuser.cred.cr_uid); -#else - coda_acccache_purgeuser(mnt->mi_vfsp, - out->coda_purgeuser.uid); -#endif - return (0); - } - - case CODA_ZAPFILE: { - struct cnode *cp; - - error = 0; - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_ZAPFILE]++; - cp = coda_find(&out->coda_zapfile.Fid); - if (cp != NULL) { - vref(CTOV(cp)); - cache_purge(CTOV(cp)); - cp->c_flags &= ~(C_VATTR | C_ACCCACHE); - ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall"); - if (VOP_IS_TEXT(CTOV(cp))) - error = coda_vmflush(cp); - CODADEBUG(CODA_ZAPFILE, - myprintf(("zapfile: fid = %s, refcnt = %d, error = " - "%d\n", coda_f2s(&cp->c_fid), - CTOV(cp)->v_usecount - 1, error));); - if (vrefcnt(CTOV(cp)) == 1) - cp->c_flags |= C_PURGING; - vrele(CTOV(cp)); - } - return (error); - } - - case CODA_ZAPDIR: { - struct cnode *cp; - - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_ZAPDIR]++; - cp = coda_find(&out->coda_zapdir.Fid); - if (cp != NULL) { - vref(CTOV(cp)); - cache_purge(CTOV(cp)); - cp->c_flags &= ~(C_VATTR | C_ACCCACHE); - CODADEBUG(CODA_ZAPDIR, myprintf(("zapdir: fid = %s, " - "refcnt = %d\n", coda_f2s(&cp->c_fid), - CTOV(cp)->v_usecount - 1));); - if (vrefcnt(CTOV(cp)) == 1) - cp->c_flags |= C_PURGING; - vrele(CTOV(cp)); - } - return (0); - } - - case CODA_PURGEFID: { - struct cnode *cp; - - error = 0; - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_PURGEFID]++; - cp = coda_find(&out->coda_purgefid.Fid); - if (cp != NULL) { - vref(CTOV(cp)); - cache_purge(CTOV(cp)); - cp->c_flags &= ~(C_VATTR | C_ACCCACHE); - ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall"); - if (!(IS_DIR(out->coda_purgefid.Fid)) - && VOP_IS_TEXT(CTOV(cp))) - error = coda_vmflush(cp); - CODADEBUG(CODA_PURGEFID, myprintf(("purgefid: fid " - "= %s, refcnt = %d, error = %d\n", - coda_f2s(&cp->c_fid), - CTOV(cp)->v_usecount - 1, error));); - if (vrefcnt(CTOV(cp)) == 1) - cp->c_flags |= C_PURGING; - vrele(CTOV(cp)); - } - return (error); - } - - case CODA_REPLACE: { - struct cnode *cp = NULL; - - coda_clstat.ncalls++; - coda_clstat.reqs[CODA_REPLACE]++; - cp = coda_find(&out->coda_replace.OldFid); - if (cp != NULL) { - /* - * Remove the cnode from the hash table, replace the - * fid, and reinsert. Clear the attribute cache as - * the "inode number" may have changed (it's just a - * hash of the fid, and the fid is changing). - */ - vref(CTOV(cp)); - coda_unsave(cp); - cp->c_fid = out->coda_replace.NewFid; - cp->c_flags &= ~C_VATTR; - coda_save(cp); - CODADEBUG(CODA_REPLACE, myprintf(("replace: oldfid " - "= %s, newfid = %s, cp = %p\n", - coda_f2s(&out->coda_replace.OldFid), - coda_f2s(&cp->c_fid), cp));); - vrele(CTOV(cp)); - } - return (0); - } - default: - myprintf(("handleDownCall: unknown opcode %d\n", opcode)); - return (EINVAL); - } -} - -int -coda_vmflush(struct cnode *cp) -{ - - return (0); -} - -/* - * Kernel-internal debugging switches. - */ -void -coda_debugon(void) -{ - - codadebug = -1; - coda_vnop_print_entry = 1; - coda_psdev_print_entry = 1; - coda_vfsop_print_entry = 1; -} - -void -coda_debugoff(void) -{ - - codadebug = 0; - coda_vnop_print_entry = 0; - coda_psdev_print_entry = 0; - coda_vfsop_print_entry = 0; -} - -/*- - * Utilities used by both client and server - * Standard levels: - * 0) no debugging - * 1) hard failures - * 2) soft failures - * 3) current test software - * 4) main procedure entry points - * 5) main procedure exit points - * 6) utility procedure entry points - * 7) utility procedure exit points - * 8) obscure procedure entry points - * 9) obscure procedure exit points - * 10) random stuff - * 11) all <= 1 - * 12) all <= 2 - * 13) all <= 3 - * ... - */ diff --git a/sys/fs/coda/coda_subr.h b/sys/fs/coda/coda_subr.h deleted file mode 100644 index b8edfd3..0000000 --- a/sys/fs/coda/coda_subr.h +++ /dev/null @@ -1,49 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_subr.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - */ - -#ifndef _CODA_SUBR_H_ -#define _CODA_SUBR_H_ - -struct cnode *coda_alloc(void); -void coda_free(struct cnode *cp); -struct cnode *coda_find(struct CodaFid *fid); -void coda_flush(struct coda_mntinfo *mnt, enum dc_status dcstat); -void coda_testflush(void); -void coda_checkunmounting(struct mount *mp); -void coda_cacheprint(struct mount *whoIam); -void coda_debugon(void); -void coda_debugoff(void); -int coda_kill(struct mount *whoIam, enum dc_status dcstat); -void coda_save(struct cnode *cp); -void coda_unsave(struct cnode *cp); - -#endif /* !_CODA_SUBR_H_ */ diff --git a/sys/fs/coda/coda_venus.c b/sys/fs/coda/coda_venus.c deleted file mode 100644 index 9d012dd..0000000 --- a/sys/fs/coda/coda_venus.c +++ /dev/null @@ -1,705 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/cfs/coda_venus.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/fcntl.h> -#include <sys/ioccom.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/mutex.h> -#include <sys/proc.h> -#include <sys/sx.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_venus.h> -#include <fs/coda/coda_pioctl.h> - -#define DECL_NO_IN(name) \ - struct coda_in_hdr *inp; \ - struct name ## _out *outp; \ - int name ## _size = sizeof (struct coda_in_hdr); \ - int Isize = sizeof (struct coda_in_hdr); \ - int Osize = sizeof (struct name ## _out); \ - int error - -#define DECL(name) \ - struct name ## _in *inp; \ - struct name ## _out *outp; \ - int name ## _size = sizeof (struct name ## _in); \ - int Isize = sizeof (struct name ## _in); \ - int Osize = sizeof (struct name ## _out); \ - int error - -#define DECL_NO_OUT(name) \ - struct name ## _in *inp; \ - struct coda_out_hdr *outp; \ - int name ## _size = sizeof (struct name ## _in); \ - int Isize = sizeof (struct name ## _in); \ - int Osize = sizeof (struct coda_out_hdr); \ - int error - -#define ALLOC_NO_IN(name) \ - if (Osize > name ## _size) \ - name ## _size = Osize; \ - CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size); \ - outp = (struct name ## _out *) inp - -#define ALLOC(name) \ - if (Osize > name ## _size) \ - name ## _size = Osize; \ - CODA_ALLOC(inp, struct name ## _in *, name ## _size); \ - outp = (struct name ## _out *) inp - -#define ALLOC_NO_OUT(name) \ - if (Osize > name ## _size) \ - name ## _size = Osize; \ - CODA_ALLOC(inp, struct name ## _in *, name ## _size); \ - outp = (struct coda_out_hdr *) inp - -#define STRCPY(struc, name, len) \ - bcopy(name, (char *)inp + (int)inp->struc, len); \ - ((char*)inp + (int)inp->struc)[len++] = 0; \ - Isize += len - -#ifdef CODA_COMPAT_5 -#define INIT_IN(in, op, ident, p) do { \ - (in)->opcode = (op); \ - sx_slock(&proctree_lock); \ - (in)->pid = p ? p->p_pid : -1; \ - (in)->pgid = p ? p->p_pgid : -1; \ - (in)->sid = (p && p->p_session && p->p_session->s_leader) ? \ - (p->p_session->s_leader->p_pid) : -1; \ - sx_sunlock(&proctree_lock); \ - if (ident != NOCRED) { \ - (in)->cred.cr_uid = ident->cr_uid; \ - (in)->cred.cr_groupid = ident->cr_gid; \ - } else { \ - bzero(&((in)->cred),sizeof(struct coda_cred)); \ - (in)->cred.cr_uid = -1; \ - (in)->cred.cr_groupid = -1; \ - } \ -} while (0) -#else -#define INIT_IN(in, op, ident, p) do { \ - (in)->opcode = (op); \ - (in)->pid = p ? p->p_pid : -1; \ - (in)->pgid = p ? p->p_pgid : -1; \ - if (ident != NOCRED) \ - (in)->uid = ident->cr_uid; \ - else \ - (in)->uid = -1; \ -} while (0) -#endif - -#define CNV_OFLAG(to, from) do { \ - to = 0; \ - if (from & FREAD) to |= C_O_READ; \ - if (from & FWRITE) to |= C_O_WRITE; \ - if (from & O_TRUNC) to |= C_O_TRUNC; \ - if (from & O_EXCL) to |= C_O_EXCL; \ - if (from & O_CREAT) to |= C_O_CREAT; \ -} while (0) - -#define CNV_VV2V_ATTR(top, fromp) do { \ - (top)->va_type = (fromp)->va_type; \ - (top)->va_mode = (fromp)->va_mode; \ - (top)->va_nlink = (fromp)->va_nlink; \ - (top)->va_uid = (fromp)->va_uid; \ - (top)->va_gid = (fromp)->va_gid; \ - (top)->va_fsid = VNOVAL; \ - (top)->va_fileid = (fromp)->va_fileid; \ - (top)->va_size = (fromp)->va_size; \ - (top)->va_blocksize = (fromp)->va_blocksize; \ - (top)->va_atime = (fromp)->va_atime; \ - (top)->va_mtime = (fromp)->va_mtime; \ - (top)->va_ctime = (fromp)->va_ctime; \ - (top)->va_gen = (fromp)->va_gen; \ - (top)->va_flags = (fromp)->va_flags; \ - (top)->va_rdev = (fromp)->va_rdev; \ - (top)->va_bytes = (fromp)->va_bytes; \ - (top)->va_filerev = (fromp)->va_filerev; \ - (top)->va_vaflags = VNOVAL; \ - (top)->va_spare = VNOVAL; \ -} while (0) - -#define CNV_V2VV_ATTR(top, fromp) do { \ - (top)->va_type = (fromp)->va_type; \ - (top)->va_mode = (fromp)->va_mode; \ - (top)->va_nlink = (fromp)->va_nlink; \ - (top)->va_uid = (fromp)->va_uid; \ - (top)->va_gid = (fromp)->va_gid; \ - (top)->va_fileid = (fromp)->va_fileid; \ - (top)->va_size = (fromp)->va_size; \ - (top)->va_blocksize = (fromp)->va_blocksize; \ - (top)->va_atime = (fromp)->va_atime; \ - (top)->va_mtime = (fromp)->va_mtime; \ - (top)->va_ctime = (fromp)->va_ctime; \ - (top)->va_gen = (fromp)->va_gen; \ - (top)->va_flags = (fromp)->va_flags; \ - (top)->va_rdev = (fromp)->va_rdev; \ - (top)->va_bytes = (fromp)->va_bytes; \ - (top)->va_filerev = (fromp)->va_filerev; \ -} while (0) - -int coda_kernel_version = CODA_KERNEL_VERSION; - -int -venus_root(void *mdp, struct ucred *cred, struct proc *p, - /*out*/ struct CodaFid *VFid) -{ - DECL_NO_IN(coda_root); /* sets Isize & Osize */ - ALLOC_NO_IN(coda_root); /* sets inp & outp */ - - /* send the open to venus. */ - INIT_IN(inp, CODA_ROOT, cred, p); - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) - *VFid = outp->Fid; - - CODA_FREE(inp, coda_root_size); - return (error); -} - -int -venus_open(void *mdp, struct CodaFid *fid, int flag, struct ucred *cred, - struct proc *p, /*out*/ struct vnode **vp) -{ - int cflag; - DECL(coda_open_by_fd); /* sets Isize & Osize */ - ALLOC(coda_open_by_fd); /* sets inp & outp */ - - /* send the open to venus. */ - INIT_IN(&inp->ih, CODA_OPEN_BY_FD, cred, p); - inp->Fid = *fid; - CNV_OFLAG(cflag, flag); - inp->flags = cflag; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - *vp = error ? NULL : outp->vp; - - CODA_FREE(inp, coda_open_by_fd_size); - return (error); -} - -int -venus_close(void *mdp, struct CodaFid *fid, int flag, struct ucred *cred, - struct proc *p) -{ - int cflag; - DECL_NO_OUT(coda_close); /* sets Isize & Osize */ - ALLOC_NO_OUT(coda_close); /* sets inp & outp */ - - INIT_IN(&inp->ih, CODA_CLOSE, cred, p); - inp->Fid = *fid; - CNV_OFLAG(cflag, flag); - inp->flags = cflag; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_close_size); - return (error); -} - -/* - * These two calls will not exist!!! The container file is read/written - * directly. - */ -void -venus_read(void) -{ -} - -void -venus_write(void) -{ -} - -/* - * This is a bit sad too. the ioctl's are for the control file, not for - * normal files. - */ -int -venus_ioctl(void *mdp, struct CodaFid *fid, int com, int flag, caddr_t data, - struct ucred *cred, struct proc *p) -{ - DECL(coda_ioctl); /* sets Isize & Osize */ - struct PioctlData *iap = (struct PioctlData *)data; - int tmp; - - coda_ioctl_size = VC_MAXMSGSIZE; - ALLOC(coda_ioctl); /* sets inp & outp */ - - INIT_IN(&inp->ih, CODA_IOCTL, cred, p); - inp->Fid = *fid; - - /* - * Command was mutated by increasing its size field to reflect the - * path and follow args. we need to subtract that out before sending - * the command to venus. - */ - inp->cmd = (com & ~(IOCPARM_MASK << 16)); - tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int); - inp->cmd |= (tmp & IOCPARM_MASK) << 16; - - if (iap->vi.in_size > VC_MAXMSGSIZE || - iap->vi.out_size > VC_MAXMSGSIZE) { - CODA_FREE(inp, coda_ioctl_size); - return (EINVAL); - } - - inp->rwflag = flag; - inp->len = iap->vi.in_size; - inp->data = (char *)(sizeof (struct coda_ioctl_in)); - - error = copyin(iap->vi.in, (char*)inp + (long)inp->data, - iap->vi.in_size); - if (error) { - CODA_FREE(inp, coda_ioctl_size); - return (error); - } - - Osize = VC_MAXMSGSIZE; - error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp); - - /* - * Copy out the out buffer. - */ - if (!error) { - if (outp->len > iap->vi.out_size) - error = EINVAL; - else - error = copyout((char *)outp + (long)outp->data, - iap->vi.out, iap->vi.out_size); - } - - CODA_FREE(inp, coda_ioctl_size); - return (error); -} - -int -venus_getattr(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct vattr *vap) -{ - struct proc *p; - DECL(coda_getattr); /* sets Isize & Osize */ - ALLOC(coda_getattr); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - p = curthread->td_proc; - INIT_IN(&inp->ih, CODA_GETATTR, cred, p); - inp->Fid = *fid; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) - CNV_VV2V_ATTR(vap, &outp->attr); - - CODA_FREE(inp, coda_getattr_size); - return (error); -} - -int -venus_setattr(void *mdp, struct CodaFid *fid, struct vattr *vap, - struct ucred *cred) -{ - struct proc *p; - DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */ - ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - p = curthread->td_proc; - INIT_IN(&inp->ih, CODA_SETATTR, cred, p); - inp->Fid = *fid; - CNV_V2VV_ATTR(&inp->attr, vap); - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_setattr_size); - return (error); -} - -int -venus_access(void *mdp, struct CodaFid *fid, accmode_t accmode, - struct ucred *cred, struct proc *p) -{ - DECL_NO_OUT(coda_access); /* sets Isize & Osize */ - ALLOC_NO_OUT(coda_access); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_ACCESS, cred, p); - inp->Fid = *fid; - - /* - * NOTE: FreeBSD and Venus internals use the "data" in the low 3 - * bits. Hence, the conversion. - * - * XXX: We cast accmode_t variable into an int. - */ - inp->flags = (int)accmode>>6; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_access_size); - return (error); -} - -int -venus_readlink(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct proc *p, /*out*/ char **str, int *len) -{ - DECL(coda_readlink); /* sets Isize & Osize */ - coda_readlink_size += CODA_MAXPATHLEN; - ALLOC(coda_readlink); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_READLINK, cred, p); - inp->Fid = *fid; - - Osize += CODA_MAXPATHLEN; - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - CODA_ALLOC(*str, char *, outp->count); - *len = outp->count; - bcopy((char *)outp + (long)outp->data, *str, *len); - } - - CODA_FREE(inp, coda_readlink_size); - return (error); -} - -int -venus_fsync(void *mdp, struct CodaFid *fid, struct proc *p) -{ - DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */ - ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */ - - /* - * Send the open to venus. - * - * XXX: should be cached mount cred. - */ - INIT_IN(&inp->ih, CODA_FSYNC, NOCRED, p); - inp->Fid = *fid; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_fsync_size); - return (error); -} - -int -venus_lookup(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p, /*out*/ struct CodaFid *VFid, - int *vtype) -{ - DECL(coda_lookup); /* sets Isize & Osize */ - coda_lookup_size += len + 1; - ALLOC(coda_lookup); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_LOOKUP, cred, p); - inp->Fid = *fid; - - /* - * NOTE: Between version 1 and version 2 we have added an extra flag - * field to this structure. But because the string was at the end - * and because of the wierd way we represent strings by having the - * slot point to where the string characters are in the "heap", we - * can just slip the flag parameter in after the string slot pointer - * and veni that don't know better won't see this new flag field ... - * Otherwise we'd need two different venus_lookup functions. - */ - inp->name = Isize; - inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */ - STRCPY(name, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - *VFid = outp->Fid; - *vtype = outp->vtype; - } - - CODA_FREE(inp, coda_lookup_size); - return (error); -} - -int -venus_create(void *mdp, struct CodaFid *fid, const char *nm, int len, - int exclusive, int mode, struct vattr *va, struct ucred *cred, - struct proc *p, /*out*/ struct CodaFid *VFid, struct vattr *attr) -{ - DECL(coda_create); /* sets Isize & Osize */ - coda_create_size += len + 1; - ALLOC(coda_create); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_CREATE, cred, p); - inp->Fid = *fid; - inp->excl = exclusive ? C_O_EXCL : 0; - inp->mode = mode; - CNV_V2VV_ATTR(&inp->attr, va); - - inp->name = Isize; - STRCPY(name, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - *VFid = outp->Fid; - CNV_VV2V_ATTR(attr, &outp->attr); - } - - CODA_FREE(inp, coda_create_size); - return (error); -} - -int -venus_remove(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p) -{ - DECL_NO_OUT(coda_remove); /* sets Isize & Osize */ - coda_remove_size += len + 1; - ALLOC_NO_OUT(coda_remove); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_REMOVE, cred, p); - inp->Fid = *fid; - - inp->name = Isize; - STRCPY(name, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_remove_size); - return (error); -} - -int -venus_link(void *mdp, struct CodaFid *fid, struct CodaFid *tfid, - const char *nm, int len, struct ucred *cred, struct proc *p) -{ - DECL_NO_OUT(coda_link); /* sets Isize & Osize */ - coda_link_size += len + 1; - ALLOC_NO_OUT(coda_link); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_LINK, cred, p); - inp->sourceFid = *fid; - inp->destFid = *tfid; - - inp->tname = Isize; - STRCPY(tname, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_link_size); - return (error); -} - -int -venus_rename(void *mdp, struct CodaFid *fid, struct CodaFid *tfid, - const char *nm, int len, const char *tnm, int tlen, struct ucred *cred, - struct proc *p) -{ - DECL_NO_OUT(coda_rename); /* sets Isize & Osize */ - coda_rename_size += len + 1 + tlen + 1; - ALLOC_NO_OUT(coda_rename); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_RENAME, cred, p); - inp->sourceFid = *fid; - inp->destFid = *tfid; - - inp->srcname = Isize; - STRCPY(srcname, nm, len); /* increments Isize */ - - inp->destname = Isize; - STRCPY(destname, tnm, tlen); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_rename_size); - return (error); -} - -int -venus_mkdir(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct vattr *va, struct ucred *cred, struct proc *p, - /*out*/ struct CodaFid *VFid, struct vattr *ova) -{ - DECL(coda_mkdir); /* sets Isize & Osize */ - coda_mkdir_size += len + 1; - ALLOC(coda_mkdir); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_MKDIR, cred, p); - inp->Fid = *fid; - CNV_V2VV_ATTR(&inp->attr, va); - - inp->name = Isize; - STRCPY(name, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - *VFid = outp->Fid; - CNV_VV2V_ATTR(ova, &outp->attr); - } - - CODA_FREE(inp, coda_mkdir_size); - return (error); -} - -int -venus_rmdir(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p) -{ - DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */ - coda_rmdir_size += len + 1; - ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_RMDIR, cred, p); - inp->Fid = *fid; - - inp->name = Isize; - STRCPY(name, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_rmdir_size); - return (error); -} - -int -venus_symlink(void *mdp, struct CodaFid *fid, const char *lnm, int llen, - const char *nm, int len, struct vattr *va, struct ucred *cred, - struct proc *p) -{ - DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */ - coda_symlink_size += llen + 1 + len + 1; - ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_SYMLINK, cred, p); - inp->Fid = *fid; - CNV_V2VV_ATTR(&inp->attr, va); - - inp->srcname = Isize; - STRCPY(srcname, lnm, llen); /* increments Isize */ - - inp->tname = Isize; - STRCPY(tname, nm, len); /* increments Isize */ - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - - CODA_FREE(inp, coda_symlink_size); - return (error); -} - -/* - * XXX: Unused. - */ -int -venus_readdir(void *mdp, struct CodaFid *fid, int count, int offset, - struct ucred *cred, struct proc *p, /*out*/ char *buffer, int *len) -{ - DECL(coda_readdir); /* sets Isize & Osize */ - coda_readdir_size = VC_MAXMSGSIZE; - ALLOC(coda_readdir); /* sets inp & outp */ - - /* - * Send the open to venus. - */ - INIT_IN(&inp->ih, CODA_READDIR, cred, p); - inp->Fid = *fid; - inp->count = count; - inp->offset = offset; - - Osize = VC_MAXMSGSIZE; - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - bcopy((char *)outp + (long)outp->data, buffer, outp->size); - *len = outp->size; - } - - CODA_FREE(inp, coda_readdir_size); - return (error); -} - -int -venus_fhtovp(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct proc *p, /*out*/ struct CodaFid *VFid, int *vtype) -{ - DECL(coda_vget); /* sets Isize & Osize */ - ALLOC(coda_vget); /* sets inp & outp */ - - /* - * Send the open to Venus. - */ - INIT_IN(&inp->ih, CODA_VGET, cred, p); - inp->Fid = *fid; - - error = coda_call(mdp, Isize, &Osize, (char *)inp); - if (!error) { - *VFid = outp->Fid; - *vtype = outp->vtype; - } - - CODA_FREE(inp, coda_vget_size); - return (error); -} diff --git a/sys/fs/coda/coda_venus.h b/sys/fs/coda/coda_venus.h deleted file mode 100644 index 95f1c57..0000000 --- a/sys/fs/coda/coda_venus.h +++ /dev/null @@ -1,83 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_venus.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - */ - -#ifndef _CODA_VENUS_H_ -#define _CODA_VENUS_H_ - -int venus_root(void *mdp, struct ucred *cred, struct proc *p, - /*out*/ struct CodaFid *VFid); -int venus_open(void *mdp, struct CodaFid *fid, int flag, - struct ucred *cred, struct proc *p, /*out*/ struct vnode **vp); -int venus_close(void *mdp, struct CodaFid *fid, int flag, - struct ucred *cred, struct proc *p); -void venus_read(void); -void venus_write(void); -int venus_ioctl(void *mdp, struct CodaFid *fid, int com, int flag, - caddr_t data, struct ucred *cred, struct proc *p); -int venus_getattr(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct vattr *vap); -int venus_setattr(void *mdp, struct CodaFid *fid, struct vattr *vap, - struct ucred *cred); -int venus_access(void *mdp, struct CodaFid *fid, int mode, - struct ucred *cred, struct proc *p); -int venus_readlink(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct proc *p, /*out*/ char **str, int *len); -int venus_fsync(void *mdp, struct CodaFid *fid, struct proc *p); -int venus_lookup(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p, /*out*/ struct CodaFid *VFid, - int *vtype); -int venus_create(void *mdp, struct CodaFid *fid, const char *nm, int len, - int exclusive, int mode, struct vattr *va, struct ucred *cred, - struct proc *p, /*out*/ struct CodaFid *VFid, - struct vattr *attr); -int venus_remove(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p); -int venus_link(void *mdp, struct CodaFid *fid, struct CodaFid *tfid, - const char *nm, int len, struct ucred *cred, struct proc *p); -int venus_rename(void *mdp, struct CodaFid *fid, struct CodaFid *tfid, - const char *nm, int len, const char *tnm, int tlen, - struct ucred *cred, struct proc *p); -int venus_mkdir(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct vattr *va, struct ucred *cred, struct proc *p, - /*out*/ struct CodaFid *VFid, struct vattr *ova); -int venus_rmdir(void *mdp, struct CodaFid *fid, const char *nm, int len, - struct ucred *cred, struct proc *p); -int venus_symlink(void *mdp, struct CodaFid *fid, const char *lnm, - int llen, const char *nm, int len, struct vattr *va, - struct ucred *cred, struct proc *p); -int venus_readdir(void *mdp, struct CodaFid *fid, int count, int offset, - struct ucred *cred, struct proc *p, /*out*/ char *buffer, - int *len); -int venus_fhtovp(void *mdp, struct CodaFid *fid, struct ucred *cred, - struct proc *p, /*out*/ struct CodaFid *VFid, int *vtype); - -#endif /* !_CODA_VENUS_H_ */ diff --git a/sys/fs/coda/coda_vfsops.c b/sys/fs/coda/coda_vfsops.c deleted file mode 100644 index 90660c6..0000000 --- a/sys/fs/coda/coda_vfsops.c +++ /dev/null @@ -1,446 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/cfs/coda_vfsops.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ - -/*- - * Mach Operating System - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon - * University. Contributers include David Steere, James Kistler, and - * M. Satyanarayanan. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/conf.h> -#include <sys/fcntl.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/mount.h> -#include <sys/namei.h> -#include <sys/proc.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_vfsops.h> -#include <fs/coda/coda_venus.h> -#include <fs/coda/coda_subr.h> -#include <fs/coda/coda_opstats.h> - -MALLOC_DEFINE(M_CODA, "coda", "Various Coda Structures"); - -int codadebug = 0; -int coda_vfsop_print_entry = 0; -#define ENTRY do { \ - if (coda_vfsop_print_entry) \ - myprintf(("Entered %s\n", __func__)); \ -} while (0) - -struct vnode *coda_ctlvp; - -/* - * Structure to keep statistics of internally generated/satisfied calls. - */ -static struct coda_op_stats coda_vfsopstats[CODA_VFSOPS_SIZE]; - -#define MARK_ENTRY(op) (coda_vfsopstats[op].entries++) -#define MARK_INT_SAT(op) (coda_vfsopstats[op].sat_intrn++) -#define MARK_INT_FAIL(op) (coda_vfsopstats[op].unsat_intrn++) -#define MARK_INT_GEN(op) (coda_vfsopstats[op].gen_intrn++) - -int -coda_vfsopstats_init(void) -{ - int i; - - for (i=0; i<CODA_VFSOPS_SIZE;i++) { - coda_vfsopstats[i].opcode = i; - coda_vfsopstats[i].entries = 0; - coda_vfsopstats[i].sat_intrn = 0; - coda_vfsopstats[i].unsat_intrn = 0; - coda_vfsopstats[i].gen_intrn = 0; - } - return (0); -} - -static const char *coda_opts[] = { "from", NULL }; -/* - * cfs mount vfsop - * - * Set up mount info record and attach it to vfs struct. - */ -/*ARGSUSED*/ -int -coda_mount(struct mount *vfsp) -{ - struct vnode *dvp; - struct cnode *cp; - struct cdev *dev; - struct coda_mntinfo *mi; - struct vnode *rootvp; - struct CodaFid rootfid = INVAL_FID; - struct CodaFid ctlfid = CTL_FID; - int error; - struct nameidata ndp; - ENTRY; - char *from; - - if (vfs_filteropt(vfsp->mnt_optnew, coda_opts)) - return (EINVAL); - from = vfs_getopts(vfsp->mnt_optnew, "from", &error); - if (error) - return (error); - coda_vfsopstats_init(); - coda_vnodeopstats_init(); - MARK_ENTRY(CODA_MOUNT_STATS); - if (CODA_MOUNTED(vfsp)) { - MARK_INT_FAIL(CODA_MOUNT_STATS); - return (EBUSY); - } - - /* - * Validate mount device. Similar to getmdev(). - */ - NDINIT(&ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, from, curthread); - error = namei(&ndp); - dvp = ndp.ni_vp; - if (error) { - MARK_INT_FAIL(CODA_MOUNT_STATS); - return (error); - } - if (dvp->v_type != VCHR) { - MARK_INT_FAIL(CODA_MOUNT_STATS); - vrele(dvp); - NDFREE(&ndp, NDF_ONLY_PNBUF); - return (ENXIO); - } - dev = dvp->v_rdev; - vrele(dvp); - NDFREE(&ndp, NDF_ONLY_PNBUF); - - /* - * Initialize the mount record and link it to the vfs struct. - */ - mi = dev2coda_mntinfo(dev); - if (!mi) { - MARK_INT_FAIL(CODA_MOUNT_STATS); - printf("Coda mount: %s is not a cfs device\n", from); - return (ENXIO); - } - if (!VC_OPEN(&mi->mi_vcomm)) { - MARK_INT_FAIL(CODA_MOUNT_STATS); - return (ENODEV); - } - - /* - * No initialization (here) of mi_vcomm! - */ - vfsp->mnt_data = mi; - vfs_getnewfsid (vfsp); - mi->mi_vfsp = vfsp; - mi->mi_started = 0; /* XXX See coda_root() */ - - /* - * Make a root vnode to placate the Vnode interface, but don't - * actually make the CODA_ROOT call to venus until the first call to - * coda_root in case a server is down while venus is starting. - */ - cp = make_coda_node(&rootfid, vfsp, VDIR); - rootvp = CTOV(cp); - rootvp->v_vflag |= VV_ROOT; - cp = make_coda_node(&ctlfid, vfsp, VREG); - coda_ctlvp = CTOV(cp); - - /* - * Add vfs and rootvp to chain of vfs hanging off mntinfo. - */ - mi->mi_vfsp = vfsp; - mi->mi_rootvp = rootvp; - vfs_mountedfrom(vfsp, from); - - /* - * Error is currently guaranteed to be zero, but in case some code - * changes... - */ - CODADEBUG(1, myprintf(("coda_mount returned %d\n", error));); - if (error) - MARK_INT_FAIL(CODA_MOUNT_STATS); - else - MARK_INT_SAT(CODA_MOUNT_STATS); - return (error); -} - -int -coda_unmount(struct mount *vfsp, int mntflags) -{ - struct coda_mntinfo *mi = vftomi(vfsp); - int active, error = 0; - - ENTRY; - MARK_ENTRY(CODA_UMOUNT_STATS); - if (!CODA_MOUNTED(vfsp)) { - MARK_INT_FAIL(CODA_UMOUNT_STATS); - return (EINVAL); - } - if (mi->mi_vfsp == vfsp) { - /* - * We found the victim. - */ - if (!IS_UNMOUNTING(VTOC(mi->mi_rootvp))) - return (EBUSY); /* Venus is still running */ -#ifdef DEBUG - printf("coda_unmount: ROOT: vp %p, cp %p\n", mi->mi_rootvp, - VTOC(mi->mi_rootvp)); -#endif - vrele(mi->mi_rootvp); - mi->mi_rootvp = NULL; - vrele(coda_ctlvp); - coda_ctlvp = NULL; - active = coda_kill(vfsp, NOT_DOWNCALL); - error = vflush(mi->mi_vfsp, 0, FORCECLOSE, curthread); -#ifdef CODA_VERBOSE - printf("coda_unmount: active = %d, vflush active %d\n", - active, error); -#endif - error = 0; - /* - * I'm going to take this out to allow lookups to go through. - * I'm not sure it's important anyway. -- DCS 2/2/94 - */ - /* vfsp->VFS_DATA = NULL; */ - - /* - * No more vfsp's to hold onto. - */ - mi->mi_vfsp = NULL; - - if (error) - MARK_INT_FAIL(CODA_UMOUNT_STATS); - else - MARK_INT_SAT(CODA_UMOUNT_STATS); - return (error); - } - return (EINVAL); -} - -/* - * Find root of cfs. - */ -int -coda_root(struct mount *vfsp, int flags, struct vnode **vpp) -{ - struct coda_mntinfo *mi = vftomi(vfsp); - int error; - struct proc *p; - struct thread *td; - struct CodaFid VFid; - static const struct CodaFid invalfid = INVAL_FID; - - td = curthread; - p = td->td_proc; - ENTRY; - MARK_ENTRY(CODA_ROOT_STATS); - if (vfsp == mi->mi_vfsp) { - /* - * Cache the root across calls. We only need to pass the - * request on to Venus if the root vnode is the dummy we - * installed in coda_mount() with all c_fid members zeroed. - * - * XXX In addition, we assume that the first call to - * coda_root() is from vfs_mount() (before the call to - * checkdirs()) and return the dummy root node to avoid a - * deadlock. This bug is fixed in the Coda CVS repository - * but not in any released versions as of 6 Mar 2003. - */ - if (memcmp(&VTOC(mi->mi_rootvp)->c_fid, &invalfid, - sizeof(struct CodaFid)) != 0 || mi->mi_started == 0) { - /* - * Found valid root. - */ - *vpp = mi->mi_rootvp; - mi->mi_started = 1; - - /* - * On Mach, this is vref. On FreeBSD, vref + - * vn_lock. - */ - vref(*vpp); - vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY); - MARK_INT_SAT(CODA_ROOT_STATS); - return (0); - } - } - - error = venus_root(vftomi(vfsp), td->td_ucred, p, &VFid); - if (!error) { - /* - * Save the new rootfid in the cnode, and rehash the cnode - * into the cnode hash with the new fid key. - */ - coda_unsave(VTOC(mi->mi_rootvp)); - VTOC(mi->mi_rootvp)->c_fid = VFid; - coda_save(VTOC(mi->mi_rootvp)); - *vpp = mi->mi_rootvp; - vref(*vpp); - vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY); - MARK_INT_SAT(CODA_ROOT_STATS); - } else if (error == ENODEV || error == EINTR) { - /* - * Gross hack here! - * - * If Venus fails to respond to the CODA_ROOT call, coda_call - * returns ENODEV. Return the uninitialized root vnode to - * allow vfs operations such as unmount to continue. Without - * this hack, there is no way to do an unmount if Venus dies - * before a successful CODA_ROOT call is done. All vnode - * operations will fail. - */ - *vpp = mi->mi_rootvp; - vref(*vpp); - vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY); - MARK_INT_FAIL(CODA_ROOT_STATS); - error = 0; - } else { - CODADEBUG(CODA_ROOT, myprintf(("error %d in CODA_ROOT\n", - error));); - MARK_INT_FAIL(CODA_ROOT_STATS); - } - return (error); -} - -/* - * Get filesystem statistics. - */ -int -coda_statfs(struct mount *vfsp, struct statfs *sbp) -{ - - ENTRY; - MARK_ENTRY(CODA_STATFS_STATS); - if (!CODA_MOUNTED(vfsp)) { - MARK_INT_FAIL(CODA_STATFS_STATS); - return (EINVAL); - } - - /* - * XXX - what to do about f_flags, others? --bnoble - * - * We just make up free space counts that are sufficiently large. - */ - sbp->f_flags = 0; - sbp->f_bsize = 8192; /* XXX */ - sbp->f_iosize = 8192; /* XXX */ -#define CODA_SFS_SIZ 0x8AB75D - sbp->f_blocks = CODA_SFS_SIZ; - sbp->f_bfree = CODA_SFS_SIZ; - sbp->f_bavail = CODA_SFS_SIZ; - sbp->f_files = CODA_SFS_SIZ; - sbp->f_ffree = CODA_SFS_SIZ; - MARK_INT_SAT(CODA_STATFS_STATS); - return (0); -} - -/* - * Flush any pending I/O. - */ -int -coda_sync(struct mount *vfsp, int waitfor) -{ - - ENTRY; - MARK_ENTRY(CODA_SYNC_STATS); - MARK_INT_SAT(CODA_SYNC_STATS); - return (0); -} - -/* - * fhtovp is now what vget used to be in 4.3-derived systems. For some silly - * reason, vget is now keyed by a 32 bit ino_t, rather than a type-specific - * fid. - * - * XXX: coda_fhtovp is currently not hooked up, so no NFS export for Coda. - * We leave it here in the hopes that someone will find it someday and hook - * it up. Among other things, it will need some reworking to match the - * vfs_fhtovp_t prototype. - */ -int -coda_fhtovp(struct mount *vfsp, struct fid *fhp, struct mbuf *nam, - struct vnode **vpp, int *exflagsp, struct ucred **creadanonp) -{ - struct cfid *cfid = (struct cfid *)fhp; - struct cnode *cp = NULL; - int error; - struct thread *td = curthread; /* XXX -mach */ - struct proc *p = td->td_proc; - struct CodaFid VFid; - int vtype; - - ENTRY; - MARK_ENTRY(CODA_VGET_STATS); - - /* - * Check for vget of control object. - */ - if (IS_CTL_FID(&cfid->cfid_fid)) { - *vpp = coda_ctlvp; - vref(coda_ctlvp); - MARK_INT_SAT(CODA_VGET_STATS); - return (0); - } - error = venus_fhtovp(vftomi(vfsp), &cfid->cfid_fid, td->td_ucred, p, - &VFid, &vtype); - if (error) { - CODADEBUG(CODA_VGET, myprintf(("vget error %d\n",error));); - *vpp = NULL; - } else { - CODADEBUG(CODA_VGET, myprintf(("vget: %s type %d result " - "%d\n", coda_f2s(&VFid), vtype, error));); - cp = make_coda_node(&VFid, vfsp, vtype); - *vpp = CTOV(cp); - } - return (error); -} - -struct vfsops coda_vfsops = { - .vfs_mount = coda_mount, - .vfs_root = coda_root, - .vfs_statfs = coda_statfs, - .vfs_sync = coda_sync, - .vfs_unmount = coda_unmount, -}; -VFS_SET(coda_vfsops, coda, VFCF_NETWORK); diff --git a/sys/fs/coda/coda_vfsops.h b/sys/fs/coda/coda_vfsops.h deleted file mode 100644 index e5b3a11..0000000 --- a/sys/fs/coda/coda_vfsops.h +++ /dev/null @@ -1,60 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/cfs/coda_vfsops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - */ - -#ifndef _CODA_VFSOPS_H_ -#define _CODA_VFSOPS_H_ - -/* - * cfid structure: - * - * This overlays the fid structure (see vfs.h); only used below and will - * probably go away. - */ -struct cfid { - u_short cfid_len; - u_short padding; - struct CodaFid cfid_fid; -}; - -struct mbuf; -struct mount; -int coda_vfsopstats_init(void); -int coda_fhtovp(struct mount *, struct fid *, struct mbuf *, - struct vnode **, int *, struct ucred **); - -vfs_mount_t coda_mount; -vfs_unmount_t coda_unmount; -vfs_root_t coda_root; -vfs_statfs_t coda_statfs; -vfs_sync_t coda_sync; - -#endif /* !_CODA_VFSOPS_H_ */ diff --git a/sys/fs/coda/coda_vnops.c b/sys/fs/coda/coda_vnops.c deleted file mode 100644 index 51fb307..0000000 --- a/sys/fs/coda/coda_vnops.c +++ /dev/null @@ -1,1738 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_vnops.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ -/* - * Mach Operating System - * Copyright (c) 1990 Carnegie-Mellon University - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon - * University. Contributers include David Steere, James Kistler, and - * M. Satyanarayanan. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/acct.h> -#include <sys/errno.h> -#include <sys/fcntl.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/file.h> /* Must come after sys/malloc.h */ -#include <sys/mount.h> -#include <sys/mutex.h> -#include <sys/namei.h> -#include <sys/proc.h> -#include <sys/uio.h> -#include <sys/unistd.h> - -#include <vm/vm.h> -#include <vm/vm_object.h> -#include <vm/vm_extern.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_vnops.h> -#include <fs/coda/coda_venus.h> -#include <fs/coda/coda_opstats.h> -#include <fs/coda/coda_subr.h> -#include <fs/coda/coda_pioctl.h> - -/* - * These flags select various performance enhancements. - */ -static int coda_attr_cache = 1; /* Set to cache attributes. */ -static int coda_symlink_cache = 1; /* Set to cache symbolic links. */ -static int coda_access_cache = 1; /* Set to cache some access checks. */ - -/* - * Structure to keep track of vfs calls. - */ -static struct coda_op_stats coda_vnodeopstats[CODA_VNODEOPS_SIZE]; - -#define MARK_ENTRY(op) (coda_vnodeopstats[op].entries++) -#define MARK_INT_SAT(op) (coda_vnodeopstats[op].sat_intrn++) -#define MARK_INT_FAIL(op) (coda_vnodeopstats[op].unsat_intrn++) -#define MARK_INT_GEN(op) (coda_vnodeopstats[op].gen_intrn++) - -/* - * What we are delaying for in printf. - */ -int coda_printf_delay = 0; /* In microseconds */ -int coda_vnop_print_entry = 0; -static int coda_lockdebug = 0; - -/* - * Some FreeBSD details: - * - * codadev_modevent is called at boot time or module load time. - */ -#define ENTRY do { \ - if (coda_vnop_print_entry) \ - myprintf(("Entered %s\n", __func__)); \ -} while (0) - -/* - * Definition of the vnode operation vector. - */ -struct vop_vector coda_vnodeops = { - .vop_default = &default_vnodeops, - .vop_cachedlookup = coda_lookup, /* uncached lookup */ - .vop_lookup = vfs_cache_lookup, /* namecache lookup */ - .vop_create = coda_create, /* create */ - .vop_open = coda_open, /* open */ - .vop_close = coda_close, /* close */ - .vop_access = coda_access, /* access */ - .vop_getattr = coda_getattr, /* getattr */ - .vop_setattr = coda_setattr, /* setattr */ - .vop_read = coda_read, /* read */ - .vop_write = coda_write, /* write */ - .vop_ioctl = coda_ioctl, /* ioctl */ - .vop_fsync = coda_fsync, /* fsync */ - .vop_remove = coda_remove, /* remove */ - .vop_link = coda_link, /* link */ - .vop_rename = coda_rename, /* rename */ - .vop_mkdir = coda_mkdir, /* mkdir */ - .vop_rmdir = coda_rmdir, /* rmdir */ - .vop_symlink = coda_symlink, /* symlink */ - .vop_readdir = coda_readdir, /* readdir */ - .vop_readlink = coda_readlink, /* readlink */ - .vop_inactive = coda_inactive, /* inactive */ - .vop_reclaim = coda_reclaim, /* reclaim */ - .vop_lock1 = coda_lock, /* lock */ - .vop_unlock = coda_unlock, /* unlock */ - .vop_bmap = VOP_EOPNOTSUPP, /* bmap */ - .vop_print = VOP_NULL, /* print */ - .vop_islocked = coda_islocked, /* islocked */ - .vop_pathconf = coda_pathconf, /* pathconf */ - .vop_poll = vop_stdpoll, - .vop_getpages = vop_stdgetpages, /* pager intf.*/ - .vop_putpages = vop_stdputpages, /* pager intf.*/ - .vop_getwritemount = vop_stdgetwritemount, -#if 0 - /* missing */ - .vop_cachedlookup = ufs_lookup, - .vop_whiteout = ufs_whiteout, -#endif - -}; - -static void coda_print_vattr(struct vattr *attr); - -int -coda_vnodeopstats_init(void) -{ - int i; - - for(i=0; i<CODA_VNODEOPS_SIZE; i++) { - coda_vnodeopstats[i].opcode = i; - coda_vnodeopstats[i].entries = 0; - coda_vnodeopstats[i].sat_intrn = 0; - coda_vnodeopstats[i].unsat_intrn = 0; - coda_vnodeopstats[i].gen_intrn = 0; - } - return (0); -} - -/* - * coda_open calls Venus which returns an open file descriptor the cache file - * holding the data. We get the vnode while we are still in the context of - * the venus process in coda_psdev.c. This vnode is then passed back to the - * caller and opened. - */ -int -coda_open(struct vop_open_args *ap) -{ - - /* - * FreeBSD can pass the O_EXCL flag in mode, even though the check - * has already happened. Venus defensively assumes that if open is - * passed the EXCL, it must be a bug. We strip the flag here. - */ - /* true args */ - struct vnode **vpp = &(ap->a_vp); - struct cnode *cp = VTOC(*vpp); - int flag = ap->a_mode & (~O_EXCL); - struct ucred *cred = ap->a_cred; - struct thread *td = ap->a_td; - /* locals */ - int error; - struct vnode *vp; - - MARK_ENTRY(CODA_OPEN_STATS); - - /* - * Check for open of control file. - */ - if (IS_CTL_VP(*vpp)) { - /* XXX */ - /* if (WRITEABLE(flag)) */ - if (flag & (FWRITE | O_TRUNC | O_CREAT | O_EXCL)) { - MARK_INT_FAIL(CODA_OPEN_STATS); - return (EACCES); - } - MARK_INT_SAT(CODA_OPEN_STATS); - return (0); - } - error = venus_open(vtomi((*vpp)), &cp->c_fid, flag, cred, - td->td_proc, &vp); - if (error) - return (error); - CODADEBUG(CODA_OPEN, myprintf(("open: vp %p result %d\n", vp, - error));); - - /* - * Save the vnode pointer for the cache file. - */ - if (cp->c_ovp == NULL) { - cp->c_ovp = vp; - } else { - if (cp->c_ovp != vp) - panic("coda_open: cp->c_ovp != ITOV(ip)"); - } - cp->c_ocount++; - - /* - * Flush the attribute cached if writing the file. - */ - if (flag & FWRITE) { - cp->c_owrite++; - cp->c_flags &= ~C_VATTR; - } - - /* - * Open the cache file. - */ - vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); - error = VOP_OPEN(vp, flag, cred, td, NULL); - if (error) { - VOP_UNLOCK(vp, 0); - printf("coda_open: VOP_OPEN on container failed %d\n", error); - return (error); - } - (*vpp)->v_object = vp->v_object; - VOP_UNLOCK(vp, 0); - return (0); -} - -/* - * Close the cache file used for I/O and notify Venus. - */ -int -coda_close(struct vop_close_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - int flag = ap->a_fflag; - struct ucred *cred = ap->a_cred; - struct thread *td = ap->a_td; - /* locals */ - int error; - - MARK_ENTRY(CODA_CLOSE_STATS); - - /* - * Check for close of control file. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_SAT(CODA_CLOSE_STATS); - return (0); - } - if (cp->c_ovp) { - vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY); - /* Do errors matter here? */ - VOP_CLOSE(cp->c_ovp, flag, cred, td); - vput(cp->c_ovp); - } -#ifdef CODA_VERBOSE - else - printf("coda_close: NO container vp %p/cp %p\n", vp, cp); -#endif - if (--cp->c_ocount == 0) - cp->c_ovp = NULL; - - /* - * File was opened for write. - */ - if (flag & FWRITE) - --cp->c_owrite; - if (!IS_UNMOUNTING(cp)) - error = venus_close(vtomi(vp), &cp->c_fid, flag, cred, - td->td_proc); - else - error = ENODEV; - CODADEBUG(CODA_CLOSE, myprintf(("close: result %d\n",error));); - return (error); -} - -int -coda_read(struct vop_read_args *ap) -{ - - ENTRY; - return (coda_rdwr(ap->a_vp, ap->a_uio, UIO_READ, ap->a_ioflag, - ap->a_cred, ap->a_uio->uio_td)); -} - -int -coda_write(struct vop_write_args *ap) -{ - - ENTRY; - return (coda_rdwr(ap->a_vp, ap->a_uio, UIO_WRITE, ap->a_ioflag, - ap->a_cred, ap->a_uio->uio_td)); -} - -int -coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw, int ioflag, - struct ucred *cred, struct thread *td) -{ - /* upcall decl */ - /* NOTE: container file operation!!! */ - /* locals */ - struct cnode *cp = VTOC(vp); - struct vnode *cfvp = cp->c_ovp; - int opened_internally = 0; - int error = 0; - - MARK_ENTRY(CODA_RDWR_STATS); - CODADEBUG(CODA_RDWR, myprintf(("coda_rdwr(%d, %p, %zd, %lld, %d)\n", - rw, (void *)uiop->uio_iov->iov_base, uiop->uio_resid, - (long long)uiop->uio_offset, uiop->uio_segflg));); - - /* - * Check for rdwr of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_RDWR_STATS); - return (EINVAL); - } - - /* - * If file is not already open this must be a page {read,write} - * request and we should open it internally. - */ - if (cfvp == NULL) { - opened_internally = 1; - MARK_INT_GEN(CODA_OPEN_STATS); - error = VOP_OPEN(vp, (rw == UIO_READ ? FREAD : FWRITE), cred, - td, NULL); -#ifdef CODA_VERBOSE - printf("coda_rdwr: Internally Opening %p\n", vp); -#endif - if (error) { - printf("coda_rdwr: VOP_OPEN on container failed " - "%d\n", error); - return (error); - } - cfvp = cp->c_ovp; - } - - /* - * Have UFS handle the call. - */ - CODADEBUG(CODA_RDWR, myprintf(("indirect rdwr: fid = %s, refcnt = " - "%d\n", coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount));); - vn_lock(cfvp, LK_EXCLUSIVE | LK_RETRY); - if (rw == UIO_READ) { - error = VOP_READ(cfvp, uiop, ioflag, cred); - } else { - error = VOP_WRITE(cfvp, uiop, ioflag, cred); - /* - * ufs_write updates the vnode_pager_setsize for the - * vnode/object. - * - * XXX: Since we now share vm objects between layers, this is - * probably unnecessary. - */ - { - struct vattr attr; - if (VOP_GETATTR(cfvp, &attr, cred) == 0) - vnode_pager_setsize(vp, attr.va_size); - } - } - VOP_UNLOCK(cfvp, 0); - if (error) - MARK_INT_FAIL(CODA_RDWR_STATS); - else - MARK_INT_SAT(CODA_RDWR_STATS); - - /* - * Do an internal close if necessary. - */ - if (opened_internally) { - MARK_INT_GEN(CODA_CLOSE_STATS); - (void)VOP_CLOSE(vp, (rw == UIO_READ ? FREAD : FWRITE), cred, - td); - } - - /* - * Invalidate cached attributes if writing. - */ - if (rw == UIO_WRITE) - cp->c_flags &= ~C_VATTR; - return (error); -} - -int -coda_ioctl(struct vop_ioctl_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - int com = ap->a_command; - caddr_t data = ap->a_data; - int flag = ap->a_fflag; - struct ucred *cred = ap->a_cred; - struct thread *td = ap->a_td; - /* locals */ - int error; - struct vnode *tvp; - struct nameidata ndp; - struct PioctlData *iap = (struct PioctlData *)data; - - MARK_ENTRY(CODA_IOCTL_STATS); - CODADEBUG(CODA_IOCTL, myprintf(("in coda_ioctl on %s\n", iap->path));); - - /* - * Don't check for operation on a dying object, for ctlvp it - * shouldn't matter. - * - * Must be control object to succeed. - */ - if (!IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_IOCTL_STATS); - CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: vp != " - "ctlvp"));); - return (EOPNOTSUPP); - } - - /* - * Look up the pathname. - * - * Should we use the name cache here? It would get it from lookupname - * sooner or later anyway, right? - */ - NDINIT(&ndp, LOOKUP, (iap->follow ? FOLLOW : NOFOLLOW), - UIO_USERSPACE, iap->path, td); - error = namei(&ndp); - tvp = ndp.ni_vp; - if (error) { - MARK_INT_FAIL(CODA_IOCTL_STATS); - CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: lookup " - "returns %d\n", error));); - return (error); - } - - /* - * Make sure this is a coda style cnode, but it may be a different - * vfsp. - */ - if (tvp->v_op != &coda_vnodeops) { - vrele(tvp); - NDFREE(&ndp, NDF_ONLY_PNBUF); - MARK_INT_FAIL(CODA_IOCTL_STATS); - CODADEBUG(CODA_IOCTL, - myprintf(("coda_ioctl error: %s not a coda object\n", - iap->path));); - return (EINVAL); - } - if (iap->vi.in_size > VC_MAXDATASIZE || - iap->vi.out_size > VC_MAXDATASIZE) { - NDFREE(&ndp, 0); - return (EINVAL); - } - error = venus_ioctl(vtomi(tvp), &((VTOC(tvp))->c_fid), com, flag, - data, cred, td->td_proc); - if (error) - MARK_INT_FAIL(CODA_IOCTL_STATS); - else - CODADEBUG(CODA_IOCTL, myprintf(("Ioctl returns %d \n", - error));); - vrele(tvp); - NDFREE(&ndp, NDF_ONLY_PNBUF); - return (error); -} - -/* - * To reduce the cost of a user-level venus;we cache attributes in the - * kernel. Each cnode has storage allocated for an attribute. If c_vattr is - * valid, return a reference to it. Otherwise, get the attributes from venus - * and store them in the cnode. There is some question if this method is a - * security leak. But I think that in order to make this call, the user must - * have done a lookup and opened the file, and therefore should already have - * access. - */ -int -coda_getattr(struct vop_getattr_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct vattr *vap = ap->a_vap; - struct ucred *cred = ap->a_cred; - /* locals */ - struct vnode *convp; - int error, size; - - MARK_ENTRY(CODA_GETATTR_STATS); - if (IS_UNMOUNTING(cp)) - return (ENODEV); - - /* - * Check for getattr of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_GETATTR_STATS); - return (ENOENT); - } - - /* - * Check to see if the attributes have already been cached. - */ - if (VALID_VATTR(cp)) { - CODADEBUG(CODA_GETATTR, myprintf(("attr cache hit: %s\n", - coda_f2s(&cp->c_fid)));); - CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR)) - coda_print_vattr(&cp->c_vattr);); - *vap = cp->c_vattr; - MARK_INT_SAT(CODA_GETATTR_STATS); - return (0); - } - error = venus_getattr(vtomi(vp), &cp->c_fid, cred, vap); - if (!error) { - CODADEBUG(CODA_GETATTR, myprintf(("getattr miss %s: result " - "%d\n", coda_f2s(&cp->c_fid), error));); - CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR)) - coda_print_vattr(vap);); - - /* - * XXX: Since we now share vm objects between layers, this is - * probably unnecessary. - */ - size = vap->va_size; - convp = cp->c_ovp; - if (convp != NULL) - vnode_pager_setsize(convp, size); - - /* - * If not open for write, store attributes in cnode. - */ - if ((cp->c_owrite == 0) && (coda_attr_cache)) { - cp->c_vattr = *vap; - cp->c_flags |= C_VATTR; - } - } - return (error); -} - -int -coda_setattr(struct vop_setattr_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct vattr *vap = ap->a_vap; - struct ucred *cred = ap->a_cred; - /* locals */ - struct vnode *convp; - int error, size; - - MARK_ENTRY(CODA_SETATTR_STATS); - - /* - * Check for setattr of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_SETATTR_STATS); - return (ENOENT); - } - if (codadebug & CODADBGMSK(CODA_SETATTR)) - coda_print_vattr(vap); - error = venus_setattr(vtomi(vp), &cp->c_fid, vap, cred); - if (!error) - cp->c_flags &= ~(C_VATTR | C_ACCCACHE); - - /* - * XXX: Since we now share vm objects between layers, this is - * probably unnecessary. - * - * XXX: Shouldn't we only be doing this "set" if C_VATTR remains - * valid after venus_setattr()? - */ - size = vap->va_size; - convp = cp->c_ovp; - if (size != VNOVAL && convp != NULL) - vnode_pager_setsize(convp, size); - CODADEBUG(CODA_SETATTR, myprintf(("setattr %d\n", error));); - return (error); -} - -int -coda_access(struct vop_access_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - accmode_t accmode = ap->a_accmode; - struct ucred *cred = ap->a_cred; - struct thread *td = ap->a_td; - /* locals */ - int error; - - MARK_ENTRY(CODA_ACCESS_STATS); - - /* - * Check for access of control object. Only read access is allowed - * on it. - */ - if (IS_CTL_VP(vp)) { - /* - * Bogus hack - all will be marked as successes. - */ - MARK_INT_SAT(CODA_ACCESS_STATS); - return (((accmode & VREAD) && !(accmode & (VWRITE | VEXEC))) - ? 0 : EACCES); - } - - /* - * We maintain a one-entry LRU positive access cache with each cnode. - * In principle we could also track negative results, and for more - * than one uid, but we don't yet. Venus is responsible for - * invalidating this cache as required. - */ - if (coda_access_cache && VALID_ACCCACHE(cp) && - (cred->cr_uid == cp->c_cached_uid) && - (accmode & cp->c_cached_mode) == accmode) { - MARK_INT_SAT(CODA_ACCESS_STATS); - return (0); - } - error = venus_access(vtomi(vp), &cp->c_fid, accmode, cred, td->td_proc); - if (error == 0 && coda_access_cache) { - /*- - * When we have a new successful request, we consider three - * cases: - * - * - No initialized access cache, in which case cache the - * result. - * - Cached result for a different user, in which case we - * replace the entry. - * - Cached result for the same user, in which case we add - * any newly granted rights to the cached mode. - * - * XXXRW: If we ever move to something more interesting than - * uid-based token lookup, we'll need to change this. - */ - cp->c_flags |= C_ACCCACHE; - if (cp->c_cached_uid != cred->cr_uid) { - cp->c_cached_mode = accmode; - cp->c_cached_uid = cred->cr_uid; - } else - cp->c_cached_mode |= accmode; - } - return (error); -} - -int -coda_readlink(struct vop_readlink_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct uio *uiop = ap->a_uio; - struct ucred *cred = ap->a_cred; - struct thread *td = ap->a_uio->uio_td; - /* locals */ - int error; - char *str; - int len; - - MARK_ENTRY(CODA_READLINK_STATS); - - /* - * Check for readlink of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_READLINK_STATS); - return (ENOENT); - } - if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) { - /* - * Symlink was cached. - */ - uiop->uio_rw = UIO_READ; - error = uiomove(cp->c_symlink, (int)cp->c_symlen, uiop); - if (error) - MARK_INT_FAIL(CODA_READLINK_STATS); - else - MARK_INT_SAT(CODA_READLINK_STATS); - return (error); - } - error = venus_readlink(vtomi(vp), &cp->c_fid, cred, td != NULL ? - td->td_proc : NULL, &str, &len); - if (!error) { - uiop->uio_rw = UIO_READ; - error = uiomove(str, len, uiop); - if (coda_symlink_cache) { - cp->c_symlink = str; - cp->c_symlen = len; - cp->c_flags |= C_SYMLINK; - } else - CODA_FREE(str, len); - } - CODADEBUG(CODA_READLINK, myprintf(("in readlink result %d\n", - error));); - return (error); -} - -int -coda_fsync(struct vop_fsync_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct thread *td = ap->a_td; - /* locals */ - struct vnode *convp = cp->c_ovp; - int error; - - MARK_ENTRY(CODA_FSYNC_STATS); - - /* - * Check for fsync on an unmounting object. - * - * XXX: Is this comment true on FreeBSD? It seems likely, since - * unmounting is fairly non-atomic. - * - * The NetBSD kernel, in it's infinite wisdom, can try to fsync after - * an unmount has been initiated. This is a Bad Thing, which we have - * to avoid. Not a legitimate failure for stats. - */ - if (IS_UNMOUNTING(cp)) - return (ENODEV); - - /* - * Check for fsync of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_SAT(CODA_FSYNC_STATS); - return (0); - } - if (convp != NULL) { - vn_lock(convp, LK_EXCLUSIVE | LK_RETRY); - VOP_FSYNC(convp, MNT_WAIT, td); - VOP_UNLOCK(convp, 0); - } - - /* - * We see fsyncs with usecount == 1 then usecount == 0. For now we - * ignore them. - */ -#if 0 - VI_LOCK(vp); - if (!vp->v_usecount) { - printf("coda_fsync on vnode %p with %d usecount. " - "c_flags = %x (%x)\n", vp, vp->v_usecount, cp->c_flags, - cp->c_flags&C_PURGING); - } - VI_UNLOCK(vp); -#endif - - /* - * We can expect fsync on any vnode at all if venus is purging it. - * Venus can't very well answer the fsync request, now can it? - * Hopefully, it won't have to, because hopefully, venus preserves - * the (possibly untrue) invariant that it never purges an open - * vnode. Hopefully. - */ - if (cp->c_flags & C_PURGING) - return (0); - - /* XXX: needs research */ - return (0); - error = venus_fsync(vtomi(vp), &cp->c_fid, td->td_proc); - CODADEBUG(CODA_FSYNC, myprintf(("in fsync result %d\n", error));); - return (error); -} - -int -coda_inactive(struct vop_inactive_args *ap) -{ - /* - * XXX - at the moment, inactive doesn't look at cred, and doesn't - * have a proc pointer. Oops. - */ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct ucred *cred __attribute__((unused)) = NULL; - struct thread *td __attribute__((unused)) = curthread; - /* upcall decl */ - /* locals */ - - /* - * We don't need to send inactive to venus - DCS. - */ - MARK_ENTRY(CODA_INACTIVE_STATS); - CODADEBUG(CODA_INACTIVE, myprintf(("in inactive, %s, vfsp %p\n", - coda_f2s(&cp->c_fid), vp->v_mount));); - vp->v_object = NULL; - - /* - * If an array has been allocated to hold the symlink, deallocate it. - */ - if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) { - if (cp->c_symlink == NULL) - panic("coda_inactive: null symlink pointer in cnode"); - CODA_FREE(cp->c_symlink, cp->c_symlen); - cp->c_flags &= ~C_SYMLINK; - cp->c_symlen = 0; - } - - /* - * Remove it from the table so it can't be found. - */ - coda_unsave(cp); - if ((struct coda_mntinfo *)(vp->v_mount->mnt_data) == NULL) { - myprintf(("Help! vfsp->vfs_data was NULL, but vnode %p " - "wasn't dying\n", vp)); - panic("badness in coda_inactive\n"); - } - if (IS_UNMOUNTING(cp)) { -#ifdef DEBUG - printf("coda_inactive: IS_UNMOUNTING use %d: vp %p, cp %p\n", - vrefcnt(vp), vp, cp); - if (cp->c_ovp != NULL) - printf("coda_inactive: cp->ovp != NULL use %d: vp " - "%p, cp %p\n", vrefcnt(vp), vp, cp); -#endif - } else - vgone(vp); - MARK_INT_SAT(CODA_INACTIVE_STATS); - return (0); -} - -/* - * Remote filesystem operations having to do with directory manipulation. - */ - -/* - * In FreeBSD, lookup returns the vnode locked. - */ -int -coda_lookup(struct vop_cachedlookup_args *ap) -{ - /* true args */ - struct vnode *dvp = ap->a_dvp; - struct cnode *dcp = VTOC(dvp); - struct vnode **vpp = ap->a_vpp; - /* - * It looks as though ap->a_cnp->ni_cnd->cn_nameptr holds the rest of - * the string to xlate, and that we must try to get at least - * ap->a_cnp->ni_cnd->cn_namelen of those characters to macth. I - * could be wrong. - */ - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* locals */ - struct cnode *cp; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; - struct CodaFid VFid; - int vtype; - int error = 0; - - MARK_ENTRY(CODA_LOOKUP_STATS); - CODADEBUG(CODA_LOOKUP, myprintf(("lookup: %s in %s\n", nm, - coda_f2s(&dcp->c_fid)));); - - /* - * Check for lookup of control object. - */ - if (IS_CTL_NAME(dvp, nm, len)) { - *vpp = coda_ctlvp; - vref(*vpp); - MARK_INT_SAT(CODA_LOOKUP_STATS); - goto exit; - } - if (len+1 > CODA_MAXNAMLEN) { - MARK_INT_FAIL(CODA_LOOKUP_STATS); - CODADEBUG(CODA_LOOKUP, myprintf(("name too long: lookup, " - "%s (%s)\n", coda_f2s(&dcp->c_fid), nm));); - *vpp = NULL; - error = EINVAL; - goto exit; - } - - error = venus_lookup(vtomi(dvp), &dcp->c_fid, nm, len, cred, - td->td_proc, &VFid, &vtype); - if (error) { - MARK_INT_FAIL(CODA_LOOKUP_STATS); - CODADEBUG(CODA_LOOKUP, myprintf(("lookup error on %s " - "(%s)%d\n", coda_f2s(&dcp->c_fid), nm, error));); - *vpp = NULL; - } else { - MARK_INT_SAT(CODA_LOOKUP_STATS); - CODADEBUG(CODA_LOOKUP, myprintf(("lookup: %s type %o " - "result %d\n", coda_f2s(&VFid), vtype, error));); - cp = make_coda_node(&VFid, dvp->v_mount, vtype); - *vpp = CTOV(cp); - - /* - * Enter the new vnode in the namecache only if the top bit - * isn't set. - * - * And don't enter a new vnode for an invalid one! - */ - if (!(vtype & CODA_NOCACHE) && (cnp->cn_flags & MAKEENTRY)) - cache_enter(dvp, *vpp, cnp); - } -exit: - /* - * If we are creating, and this was the last name to be looked up, - * and the error was ENOENT, then there really shouldn't be an error - * and we can make the leaf NULL and return success. Since this is - * supposed to work under Mach as well as FreeBSD, we're leaving this - * fn wrapped. We also must tell lookup/namei that we need to save - * the last component of the name. (Create will have to free the - * name buffer later...lucky us...). - */ - if (((cnp->cn_nameiop == CREATE) || (cnp->cn_nameiop == RENAME)) - && (cnp->cn_flags & ISLASTCN) && (error == ENOENT)) { - error = EJUSTRETURN; - cnp->cn_flags |= SAVENAME; - *ap->a_vpp = NULL; - } - - /* - * If we are removing, and we are at the last element, and we found - * it, then we need to keep the name around so that the removal will - * go ahead as planned. Unfortunately, this will probably also lock - * the to-be-removed vnode, which may or may not be a good idea. - * I'll have to look at the bits of coda_remove to make sure. We'll - * only save the name if we did in fact find the name, otherwise - * coda_remove won't have a chance to free the pathname. - */ - if ((cnp->cn_nameiop == DELETE) && (cnp->cn_flags & ISLASTCN) - && !error) - cnp->cn_flags |= SAVENAME; - - /* - * If the lookup went well, we need to (potentially?) unlock the - * parent, and lock the child. We are only responsible for checking - * to see if the parent is supposed to be unlocked before we return. - * We must always lock the child (provided there is one, and (the - * parent isn't locked or it isn't the same as the parent.) Simple, - * huh? We can never leave the parent locked unless we are ISLASTCN. - */ - if (!error || (error == EJUSTRETURN)) { - if (cnp->cn_flags & ISDOTDOT) { - VOP_UNLOCK(dvp, 0); - /* - * The parent is unlocked. As long as there is a - * child, lock it without bothering to check anything - * else. - */ - if (*ap->a_vpp) - vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY); - vn_lock(dvp, LK_RETRY|LK_EXCLUSIVE); - } else { - /* - * The parent is locked, and may be the same as the - * child. If different, go ahead and lock it. - */ - if (*ap->a_vpp && (*ap->a_vpp != dvp)) - vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY); - } - } else { - /* - * If the lookup failed, we need to ensure that the leaf is - * NULL. - * - * Don't change any locking? - */ - *ap->a_vpp = NULL; - } - return (error); -} - -/*ARGSUSED*/ -int -coda_create(struct vop_create_args *ap) -{ - /* true args */ - struct vnode *dvp = ap->a_dvp; - struct cnode *dcp = VTOC(dvp); - struct vattr *va = ap->a_vap; - int exclusive = 1; - int mode = ap->a_vap->va_mode; - struct vnode **vpp = ap->a_vpp; - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* locals */ - int error; - struct cnode *cp; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; - struct CodaFid VFid; - struct vattr attr; - - MARK_ENTRY(CODA_CREATE_STATS); - - /* - * All creates are exclusive XXX. - * - * I'm assuming the 'mode' argument is the file mode bits XXX. - * - * Check for create of control object. - */ - if (IS_CTL_NAME(dvp, nm, len)) { - *vpp = (struct vnode *)0; - MARK_INT_FAIL(CODA_CREATE_STATS); - return (EACCES); - } - error = venus_create(vtomi(dvp), &dcp->c_fid, nm, len, exclusive, - mode, va, cred, td->td_proc, &VFid, &attr); - if (!error) { - /* - * If this is an exclusive create, panic if the file already - * exists. - * - * Venus should have detected the file and reported EEXIST. - */ - if ((exclusive == 1) && (coda_find(&VFid) != NULL)) - panic("cnode existed for newly created file!"); - cp = make_coda_node(&VFid, dvp->v_mount, attr.va_type); - *vpp = CTOV(cp); - - /* - * Update va to reflect the new attributes. - */ - (*va) = attr; - - /* - * Update the attribute cache and mark it as valid. - */ - if (coda_attr_cache) { - VTOC(*vpp)->c_vattr = attr; - VTOC(*vpp)->c_flags |= C_VATTR; - } - - /* - * Invalidate the parent's attr cache, the modification time - * has changed. - */ - VTOC(dvp)->c_flags &= ~C_VATTR; - cache_enter(dvp, *vpp, cnp); - CODADEBUG(CODA_CREATE, myprintf(("create: %s, result %d\n", - coda_f2s(&VFid), error));); - } else { - *vpp = (struct vnode *)0; - CODADEBUG(CODA_CREATE, myprintf(("create error %d\n", - error));); - } - if (!error) { - if (cnp->cn_flags & MAKEENTRY) - cache_enter(dvp, *vpp, cnp); - if (cnp->cn_flags & LOCKLEAF) - vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY); - } else if (error == ENOENT) { - /* - * XXXRW: We only enter a negative entry if ENOENT is - * returned, not other errors. But will Venus invalidate dvp - * properly in all cases when new files appear via the - * network rather than a local operation? - */ - if (cnp->cn_flags & MAKEENTRY) - cache_enter(dvp, NULL, cnp); - } - return (error); -} - -int -coda_remove(struct vop_remove_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct vnode *dvp = ap->a_dvp; - struct cnode *cp = VTOC(dvp); - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* locals */ - int error; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; -#if 0 - struct cnode *tp; -#endif - - MARK_ENTRY(CODA_REMOVE_STATS); - CODADEBUG(CODA_REMOVE, myprintf(("remove: %s in %s\n", nm, - coda_f2s(&cp->c_fid)));); - - /* - * Check for remove of control object. - */ - if (IS_CTL_NAME(dvp, nm, len)) { - MARK_INT_FAIL(CODA_REMOVE_STATS); - return (ENOENT); - } - - /* - * Invalidate the parent's attr cache, the modification time has - * changed. We don't yet know if the last reference to the file is - * being removed, but we do know the reference count on the child has - * changed, so invalidate its attr cache also. - */ - VTOC(dvp)->c_flags &= ~C_VATTR; - VTOC(vp)->c_flags &= ~(C_VATTR | C_ACCCACHE); - error = venus_remove(vtomi(dvp), &cp->c_fid, nm, len, cred, - td->td_proc); - cache_purge(vp); - CODADEBUG(CODA_REMOVE, myprintf(("in remove result %d\n",error));); - return (error); -} - -int -coda_link(struct vop_link_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct vnode *tdvp = ap->a_tdvp; - struct cnode *tdcp = VTOC(tdvp); - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* locals */ - int error; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; - - MARK_ENTRY(CODA_LINK_STATS); - - if (codadebug & CODADBGMSK(CODA_LINK)) { - myprintf(("nb_link: vp fid: %s\n", coda_f2s(&cp->c_fid))); - myprintf(("nb_link: tdvp fid: %s)\n", - coda_f2s(&tdcp->c_fid))); - } - if (codadebug & CODADBGMSK(CODA_LINK)) { - myprintf(("link: vp fid: %s\n", coda_f2s(&cp->c_fid))); - myprintf(("link: tdvp fid: %s\n", coda_f2s(&tdcp->c_fid))); - } - - /* - * Check for link to/from control object. - */ - if (IS_CTL_NAME(tdvp, nm, len) || IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_LINK_STATS); - return (EACCES); - } - error = venus_link(vtomi(vp), &cp->c_fid, &tdcp->c_fid, nm, len, - cred, td->td_proc); - - /* - * Invalidate the parent's attr cache, the modification time has - * changed. - */ - VTOC(tdvp)->c_flags &= ~C_VATTR; - VTOC(vp)->c_flags &= ~C_VATTR; - CODADEBUG(CODA_LINK, myprintf(("in link result %d\n",error));); - return (error); -} - -int -coda_rename(struct vop_rename_args *ap) -{ - /* true args */ - struct vnode *fvp = ap->a_fvp; - struct vnode *tvp = ap->a_tvp; - struct vnode *odvp = ap->a_fdvp; - struct cnode *odcp = VTOC(odvp); - struct componentname *fcnp = ap->a_fcnp; - struct vnode *ndvp = ap->a_tdvp; - struct cnode *ndcp = VTOC(ndvp); - struct componentname *tcnp = ap->a_tcnp; - struct ucred *cred = fcnp->cn_cred; - struct thread *td = fcnp->cn_thread; - /* true args */ - int error; - const char *fnm = fcnp->cn_nameptr; - int flen = fcnp->cn_namelen; - const char *tnm = tcnp->cn_nameptr; - int tlen = tcnp->cn_namelen; - - MARK_ENTRY(CODA_RENAME_STATS); - - /* - * Check for rename involving control object. - */ - if (IS_CTL_NAME(odvp, fnm, flen) || IS_CTL_NAME(ndvp, tnm, tlen)) { - MARK_INT_FAIL(CODA_RENAME_STATS); - return (EACCES); - } - - /* - * Remove the entries for both source and target directories, which - * should catch references to the children. Perhaps we could purge - * less? - */ - cache_purge(odvp); - cache_purge(ndvp); - - /* - * Invalidate parent directories as modification times have changed. - * Invalidate access cache on renamed file as rights may have - * changed. - */ - VTOC(odvp)->c_flags &= ~C_VATTR; - VTOC(ndvp)->c_flags &= ~C_VATTR; - VTOC(fvp)->c_flags &= ~C_ACCCACHE; - if (flen+1 > CODA_MAXNAMLEN) { - MARK_INT_FAIL(CODA_RENAME_STATS); - error = EINVAL; - goto exit; - } - if (tlen+1 > CODA_MAXNAMLEN) { - MARK_INT_FAIL(CODA_RENAME_STATS); - error = EINVAL; - goto exit; - } - error = venus_rename(vtomi(odvp), &odcp->c_fid, &ndcp->c_fid, fnm, - flen, tnm, tlen, cred, td->td_proc); -exit: - CODADEBUG(CODA_RENAME, myprintf(("in rename result %d\n",error));); - - /* - * Update namecache to reflect that the names of various objects may - * have changed (or gone away entirely). - */ - cache_purge(fvp); - cache_purge(tvp); - - /* - * Release parents first, then children. - */ - vrele(odvp); - if (tvp) { - if (tvp == ndvp) - vrele(ndvp); - else - vput(ndvp); - vput(tvp); - } else - vput(ndvp); - vrele(fvp); - return (error); -} - -int -coda_mkdir(struct vop_mkdir_args *ap) -{ - /* true args */ - struct vnode *dvp = ap->a_dvp; - struct cnode *dcp = VTOC(dvp); - struct componentname *cnp = ap->a_cnp; - struct vattr *va = ap->a_vap; - struct vnode **vpp = ap->a_vpp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* locals */ - int error; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; - struct cnode *cp; - struct CodaFid VFid; - struct vattr ova; - - MARK_ENTRY(CODA_MKDIR_STATS); - - /* - * Check for mkdir of target object. - */ - if (IS_CTL_NAME(dvp, nm, len)) { - *vpp = (struct vnode *)0; - MARK_INT_FAIL(CODA_MKDIR_STATS); - return (EACCES); - } - if (len+1 > CODA_MAXNAMLEN) { - *vpp = (struct vnode *)0; - MARK_INT_FAIL(CODA_MKDIR_STATS); - return (EACCES); - } - error = venus_mkdir(vtomi(dvp), &dcp->c_fid, nm, len, va, cred, - td->td_proc, &VFid, &ova); - if (!error) { - if (coda_find(&VFid) != NULL) - panic("cnode existed for newly created directory!"); - cp = make_coda_node(&VFid, dvp->v_mount, va->va_type); - *vpp = CTOV(cp); - - /* - * Enter the new vnode in the Name Cache. - */ - if (cnp->cn_flags & MAKEENTRY) - cache_enter(dvp, *vpp, cnp); - - /* - * Update the attr cache and mark as valid. - */ - if (coda_attr_cache) { - VTOC(*vpp)->c_vattr = ova; - VTOC(*vpp)->c_flags |= C_VATTR; - } - - /* - * Invalidate the parent's attr cache, the modification time - * has changed. - */ - VTOC(dvp)->c_flags &= ~C_VATTR; - vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY); - CODADEBUG( CODA_MKDIR, myprintf(("mkdir: %s result %d\n", - coda_f2s(&VFid), error));); - } else { - *vpp = NULL; - CODADEBUG(CODA_MKDIR, myprintf(("mkdir error %d\n",error));); - } - return (error); -} - -int -coda_rmdir(struct vop_rmdir_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct vnode *dvp = ap->a_dvp; - struct cnode *dcp = VTOC(dvp); - struct componentname *cnp = ap->a_cnp; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - /* true args */ - int error; - const char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; -#if 0 - struct cnode *cp; -#endif - - MARK_ENTRY(CODA_RMDIR_STATS); - - /* - * Check for rmdir of control object. - */ - if (IS_CTL_NAME(dvp, nm, len)) { - MARK_INT_FAIL(CODA_RMDIR_STATS); - return (ENOENT); - } - - /* - * Possibly somewhat conservative purging, perhaps we just need to - * purge vp? - */ - cache_purge(dvp); - cache_purge(vp); - - /* - * Invalidate the parent's attr cache, the modification time has - * changed. - */ - dcp->c_flags &= ~C_VATTR; - error = venus_rmdir(vtomi(dvp), &dcp->c_fid, nm, len, cred, - td->td_proc); - CODADEBUG(CODA_RMDIR, myprintf(("in rmdir result %d\n", error));); - return (error); -} - -int -coda_symlink(struct vop_symlink_args *ap) -{ - /* true args */ - struct vnode *tdvp = ap->a_dvp; - struct cnode *tdcp = VTOC(tdvp); - struct componentname *cnp = ap->a_cnp; - struct vattr *tva = ap->a_vap; - char *path = ap->a_target; - struct ucred *cred = cnp->cn_cred; - struct thread *td = cnp->cn_thread; - struct vnode **vpp = ap->a_vpp; - /* locals */ - int error; - - /*- - * XXX I'm assuming the following things about coda_symlink's - * arguments: - * t(foo) is the new name/parent/etc being created. - * lname is the contents of the new symlink. - */ - char *nm = cnp->cn_nameptr; - int len = cnp->cn_namelen; - int plen = strlen(path); - - /* - * Here's the strategy for the moment: perform the symlink, then do a - * lookup to grab the resulting vnode. I know this requires two - * communications with Venus for a new sybolic link, but that's the - * way the ball bounces. I don't yet want to change the way the Mach - * symlink works. When Mach support is deprecated, we should change - * symlink so that the common case returns the resultant vnode in a - * vpp argument. - */ - MARK_ENTRY(CODA_SYMLINK_STATS); - - /* - * Check for symlink of control object. - */ - if (IS_CTL_NAME(tdvp, nm, len)) { - MARK_INT_FAIL(CODA_SYMLINK_STATS); - return (EACCES); - } - if (plen+1 > CODA_MAXPATHLEN) { - MARK_INT_FAIL(CODA_SYMLINK_STATS); - return (EINVAL); - } - if (len+1 > CODA_MAXNAMLEN) { - MARK_INT_FAIL(CODA_SYMLINK_STATS); - error = EINVAL; - goto exit; - } - error = venus_symlink(vtomi(tdvp), &tdcp->c_fid, path, plen, nm, len, - tva, cred, td->td_proc); - - /* - * Invalidate the parent's attr cache, the modification time has - * changed. - */ - tdcp->c_flags &= ~C_VATTR; - if (error == 0) - error = VOP_LOOKUP(tdvp, vpp, cnp); -exit: - CODADEBUG(CODA_SYMLINK, myprintf(("in symlink result %d\n",error));); - return (error); -} - -/* - * Read directory entries. - * - * XXX: This forwards the operator straight to the cache vnode using - * VOP_READDIR(), rather than calling venus_readdir(). Why? - */ -int -coda_readdir(struct vop_readdir_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - struct uio *uiop = ap->a_uio; - struct ucred *cred = ap->a_cred; - int *eofflag = ap->a_eofflag; - u_long **cookies = ap->a_cookies; - int *ncookies = ap->a_ncookies; - struct thread *td = ap->a_uio->uio_td; - /* upcall decl */ - /* locals */ - int error = 0; - int opened_internally = 0; - - MARK_ENTRY(CODA_READDIR_STATS); - CODADEBUG(CODA_READDIR, myprintf(("coda_readdir(%p, %zd, %lld, %d)\n", - (void *)uiop->uio_iov->iov_base, uiop->uio_resid, - (long long)uiop->uio_offset, uiop->uio_segflg));); - - /* - * Check for readdir of control object. - */ - if (IS_CTL_VP(vp)) { - MARK_INT_FAIL(CODA_READDIR_STATS); - return (ENOENT); - } - - /* - * If directory is not already open do an "internal open" on it. - * - * XXX: Why would this happen? For files, there's memory mapping, - * execution, and other kernel access paths such as ktrace. For - * directories, it is less clear. - */ - if (cp->c_ovp == NULL) { - opened_internally = 1; - MARK_INT_GEN(CODA_OPEN_STATS); - error = VOP_OPEN(vp, FREAD, cred, td, NULL); - printf("coda_readdir: Internally Opening %p\n", vp); - if (error) { - printf("coda_readdir: VOP_OPEN on container failed " - "%d\n", error); - return (error); - } - } - - /* - * Have UFS handle the call. - */ - CODADEBUG(CODA_READDIR, myprintf(("indirect readdir: fid = %s, " - "refcnt = %d\n", coda_f2s(&cp->c_fid), vp->v_usecount));); - vn_lock(cp->c_ovp, LK_SHARED | LK_RETRY); - error = VOP_READDIR(cp->c_ovp, uiop, cred, eofflag, ncookies, - cookies); - VOP_UNLOCK(cp->c_ovp, 0); - if (error) - MARK_INT_FAIL(CODA_READDIR_STATS); - else - MARK_INT_SAT(CODA_READDIR_STATS); - - /* - * Do an "internal close" if necessary. - */ - if (opened_internally) { - MARK_INT_GEN(CODA_CLOSE_STATS); - (void)VOP_CLOSE(vp, FREAD, cred, td); - } - return (error); -} - -int -coda_reclaim(struct vop_reclaim_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - /* upcall decl */ - /* locals */ - - /* - * Forced unmount/flush will let vnodes with non-zero use be - * destroyed! - */ - ENTRY; - - if (IS_UNMOUNTING(cp)) { -#ifdef DEBUG - if (VTOC(vp)->c_ovp) { - if (IS_UNMOUNTING(cp)) - printf("coda_reclaim: c_ovp not void: vp " - "%p, cp %p\n", vp, cp); - } -#endif - } - cache_purge(vp); - coda_free(VTOC(vp)); - vp->v_data = NULL; - vp->v_object = NULL; - return (0); -} - -int -coda_lock(struct vop_lock1_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - /* upcall decl */ - /* locals */ - - ENTRY; - if ((ap->a_flags & LK_INTERLOCK) == 0) { - VI_LOCK(vp); - ap->a_flags |= LK_INTERLOCK; - } - if (coda_lockdebug) - myprintf(("Attempting lock on %s\n", coda_f2s(&cp->c_fid))); - return (vop_stdlock(ap)); -} - -int -coda_unlock(struct vop_unlock_args *ap) -{ - /* true args */ - struct vnode *vp = ap->a_vp; - struct cnode *cp = VTOC(vp); - /* upcall decl */ - /* locals */ - - ENTRY; - if (coda_lockdebug) - myprintf(("Attempting unlock on %s\n", - coda_f2s(&cp->c_fid))); - return (vop_stdunlock(ap)); -} - -int -coda_islocked(struct vop_islocked_args *ap) -{ - /* true args */ - - ENTRY; - return (vop_stdislocked(ap)); -} - -static void -coda_print_vattr(struct vattr *attr) -{ - char *typestr; - - switch (attr->va_type) { - case VNON: - typestr = "VNON"; - break; - - case VREG: - typestr = "VREG"; - break; - - case VDIR: - typestr = "VDIR"; - break; - - case VBLK: - typestr = "VBLK"; - break; - - case VCHR: - typestr = "VCHR"; - break; - - case VLNK: - typestr = "VLNK"; - break; - - case VSOCK: - typestr = "VSCK"; - break; - - case VFIFO: - typestr = "VFFO"; - break; - - case VBAD: - typestr = "VBAD"; - break; - - default: - typestr = "????"; - break; - } - myprintf(("attr: type %s mode %d uid %d gid %d fsid %d rdev %d\n", - typestr, (int)attr->va_mode, (int)attr->va_uid, - (int)attr->va_gid, (int)attr->va_fsid, (int)attr->va_rdev)); - myprintf((" fileid %d nlink %d size %d blocksize %d bytes %d\n", - (int)attr->va_fileid, (int)attr->va_nlink, (int)attr->va_size, - (int)attr->va_blocksize,(int)attr->va_bytes)); - myprintf((" gen %ld flags %ld vaflags %d\n", attr->va_gen, - attr->va_flags, attr->va_vaflags)); - myprintf((" atime sec %d nsec %d\n", (int)attr->va_atime.tv_sec, - (int)attr->va_atime.tv_nsec)); - myprintf((" mtime sec %d nsec %d\n", (int)attr->va_mtime.tv_sec, - (int)attr->va_mtime.tv_nsec)); - myprintf((" ctime sec %d nsec %d\n", (int)attr->va_ctime.tv_sec, - (int)attr->va_ctime.tv_nsec)); -} - -/* - * How to print a ucred. - */ -void -coda_print_cred(struct ucred *cred) -{ - int i; - - myprintf(("ref %d\tuid %d\n",cred->cr_ref,cred->cr_uid)); - for (i=0; i < cred->cr_ngroups; i++) - myprintf(("\tgroup %d: (%d)\n",i,cred->cr_groups[i])); - myprintf(("\n")); -} - -/* - * Return a vnode for the given fid. If no cnode exists for this fid create - * one and put it in a table hashed by coda_f2i(). If the cnode for this fid - * is already in the table return it (ref count is incremented by coda_find. - * The cnode will be flushed from the table when coda_inactive calls - * coda_unsave. - */ -struct cnode * -make_coda_node(struct CodaFid *fid, struct mount *vfsp, short type) -{ - struct cnode *cp; - struct vnode *vp; - int err; - - /* - * XXXRW: This really needs a moderate amount of reworking. We need - * to properly tolerate failures of getnewvnode() and insmntque(), - * and callers need to be able to accept an error back from - * make_coda_node. There may also be more general issues in how we - * handle forced unmount. Finally, if/when Coda loses its dependency - * on Giant, the ordering of this needs rethinking. - */ - cp = coda_find(fid); - if (cp != NULL) { - vref(CTOV(cp)); - return (cp); - } - cp = coda_alloc(); - cp->c_fid = *fid; - err = getnewvnode("coda", vfsp, &coda_vnodeops, &vp); - if (err) - panic("coda: getnewvnode returned error %d\n", err); - vp->v_data = cp; - vp->v_type = type; - cp->c_vnode = vp; - coda_save(cp); - err = insmntque(vp, vfsp); - if (err != 0) - printf("coda: insmntque failed: error %d", err); - return (cp); -} - -int -coda_pathconf(struct vop_pathconf_args *ap) -{ - - switch (ap->a_name) { - case _PC_NAME_MAX: - *ap->a_retval = CODA_MAXNAMLEN; - return (0); - - case _PC_PATH_MAX: - *ap->a_retval = CODA_MAXPATHLEN; - return (0); - - default: - return (vop_stdpathconf(ap)); - } -} diff --git a/sys/fs/coda/coda_vnops.h b/sys/fs/coda/coda_vnops.h deleted file mode 100644 index e43b09f..0000000 --- a/sys/fs/coda/coda_vnops.h +++ /dev/null @@ -1,84 +0,0 @@ -/*- - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_vnops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $FreeBSD$ - */ - -/* - * Mach Operating System - * Copyright (c) 1990 Carnegie-Mellon University - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda filesystem at Carnegie Mellon - * University. Contributers include David Steere, James Kistler, and - * M. Satyanarayanan. - */ - -#ifndef _CODA_VNOPS_H_ -#define _CODA_VNOPS_H_ - -/* - * FreeBSD interfaces to the vnodeops. - */ -vop_open_t coda_open; -vop_close_t coda_close; -vop_read_t coda_read; -vop_write_t coda_write; -vop_ioctl_t coda_ioctl; -vop_getattr_t coda_getattr; -vop_setattr_t coda_setattr; -vop_access_t coda_access; -vop_readlink_t coda_readlink; -vop_fsync_t coda_fsync; -vop_inactive_t coda_inactive; -vop_cachedlookup_t coda_lookup; -vop_create_t coda_create; -vop_remove_t coda_remove; -vop_link_t coda_link; -vop_rename_t coda_rename; -vop_mkdir_t coda_mkdir; -vop_rmdir_t coda_rmdir; -vop_symlink_t coda_symlink; -vop_readdir_t coda_readdir; -vop_strategy_t coda_strategy; -vop_reclaim_t coda_reclaim; -vop_lock1_t coda_lock; -vop_unlock_t coda_unlock; -vop_islocked_t coda_islocked; -vop_pathconf_t coda_pathconf; - -int coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw, - int ioflag, struct ucred *cred, struct thread *td); -void coda_print_cred(struct ucred *cred); - -#endif /* !_CODA_VNOPS_H_ */ diff --git a/sys/modules/coda/Makefile b/sys/modules/coda/Makefile deleted file mode 100644 index ebcb39c..0000000 --- a/sys/modules/coda/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# $FreeBSD$ - -.PATH: ${.CURDIR}/../../fs/coda - -KMOD= coda -SRCS= vnode_if.h \ - coda_fbsd.c coda_psdev.c coda_subr.c coda_venus.c coda_vfsops.c \ - coda_vnops.c opt_coda.h - -.include <bsd.kmod.mk> diff --git a/sys/modules/coda5/Makefile b/sys/modules/coda5/Makefile deleted file mode 100644 index f9aea09..0000000 --- a/sys/modules/coda5/Makefile +++ /dev/null @@ -1,13 +0,0 @@ -# $FreeBSD$ - -.PATH: ${.CURDIR}/../../fs/coda - -KMOD= coda5 -SRCS= vnode_if.h \ - coda_fbsd.c coda_psdev.c coda_subr.c \ - coda_venus.c coda_vfsops.c coda_vnops.c \ - opt_coda.h - -CFLAGS+= -DCODA5_MODULE - -.include <bsd.kmod.mk> |