Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 744 insertions, 0 deletions

diff --git a/include/linux/coda.h b/include/linux/coda.h
new file mode 100644
index 0000000..96c8769
--- /dev/null
+++ b/include/linux/coda.h
@@ -0,0 +1,744 @@
+/* 
+   You may distribute this file under either of the two licenses that
+   follow at your discretion.
+*/
+
+/* BLURB lgpl
+
+                           Coda File System
+                              Release 5
+
+          Copyright (c) 1987-1999 Carnegie Mellon University
+                  Additional copyrights listed below
+
+This code is distributed "AS IS" without warranty of any kind under
+the terms of the GNU Library General Public Licence Version 2, as
+shown in the file LICENSE, or under the license shown below. The
+technical and financial contributors to Coda are listed in the file
+CREDITS.
+
+                        Additional copyrights 
+*/
+
+/*
+
+            Coda: an Experimental Distributed File System
+                             Release 4.0
+
+          Copyright (c) 1987-1999 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.
+*/
+
+/*
+ *
+ * Based on cfs.h from Mach, but revamped for increased simplicity.
+ * Linux modifications by 
+ * Peter Braam, Aug 1996
+ */
+
+#ifndef _CODA_HEADER_
+#define _CODA_HEADER_
+
+
+/* Catch new _KERNEL defn for NetBSD and DJGPP/__CYGWIN32__ */
+#if defined(__NetBSD__) || \
+  ((defined(DJGPP) || defined(__CYGWIN32__)) && !defined(KERNEL))
+#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 dev_t;
+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/time.h>
+typedef unsigned long long u_quad_t;
+#endif /* !KERNEL */
+#endif /* !DJGPP */
+
+
+#if defined(__linux__)
+#include <linux/time.h>
+#define cdev_t u_quad_t
+#ifndef __KERNEL__
+#if !defined(_UQUAD_T_) && (!defined(__GLIBC__) || __GLIBC__ < 2)
+#define _UQUAD_T_ 1
+typedef unsigned long long u_quad_t;
+#endif
+#else /*__KERNEL__ */
+typedef unsigned long long u_quad_t;
+#endif /* __KERNEL__ */
+#else
+#define cdev_t dev_t
+#endif
+
+#ifdef __CYGWIN32__
+struct timespec {
+        time_t  tv_sec;         /* seconds */
+        long    tv_nsec;        /* nanoseconds */
+};
+#endif
+
+#ifndef __BIT_TYPES_DEFINED__
+#define __BIT_TYPES_DEFINED__
+typedef signed char	      int8_t;
+typedef unsigned char	    u_int8_t;
+typedef short		     int16_t;
+typedef unsigned short	   u_int16_t;
+typedef int		     int32_t;
+typedef unsigned int	   u_int32_t;
+#endif
+
+
+/*
+ * 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 {
+        u_int32_t d_fileno;		/* file number of entry */
+        u_int16_t d_reclen;		/* length of this record */
+        u_int8_t  d_type;			/* file type, see below */
+        u_int8_t  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
+
+#ifndef _VUID_T_
+#define _VUID_T_
+typedef u_int32_t vuid_t;
+typedef u_int32_t vgid_t;
+#endif /*_VUID_T_ */
+
+struct CodaFid {
+	u_int32_t opaque[4];
+};
+
+#define coda_f2i(fid)\
+	(fid ? (fid->opaque[3] ^ (fid->opaque[2]<<10) ^ (fid->opaque[1]<<20) ^ fid->opaque[0]) : 0)
+
+#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 */
+	vuid_t		va_uid;		/* owner user id */
+	vgid_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_SYMLINK	18
+#define CODA_READLINK	19
+#define CODA_FSYNC	20
+#define CODA_VGET	22
+#define CODA_SIGNAL	23
+#define CODA_REPLACE	 24 /* DOWNCALL */
+#define CODA_FLUSH       25 /* DOWNCALL */
+#define CODA_PURGEUSER   26 /* DOWNCALL */
+#define CODA_ZAPFILE     27 /* DOWNCALL */
+#define CODA_ZAPDIR      28 /* DOWNCALL */
+#define CODA_PURGEFID    30 /* DOWNCALL */
+#define CODA_OPEN_BY_PATH 31
+#define CODA_RESOLVE     32
+#define CODA_REINTEGRATE 33
+#define CODA_STATFS	 34
+#define CODA_STORE	 35
+#define CODA_RELEASE	 36
+#define CODA_NCALLS 37
+
+#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, size_t)
+
+#define CODA_KERNEL_VERSION 3 /* 128-bit file identifiers */
+
+/*
+ *        Venus <-> Coda  RPC arguments
+ */
+struct coda_in_hdr {
+    u_int32_t opcode;
+    u_int32_t unique;	    /* Keep multiple outstanding msgs distinct */
+    pid_t pid;
+    pid_t pgid;
+    vuid_t uid;
+};
+
+/* 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 VFid;
+};
+
+struct coda_root_in {
+    struct coda_in_hdr in;
+};
+
+/* coda_open: */
+struct coda_open_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    int	flags;
+};
+
+struct coda_open_out {
+    struct coda_out_hdr oh;
+    cdev_t	dev;
+    ino_t	inode;
+};
+
+
+/* coda_store: */
+struct coda_store_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    int	flags;
+};
+
+struct coda_store_out {
+    struct coda_out_hdr out;
+};
+
+/* coda_release: */
+struct coda_release_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    int	flags;
+};
+
+struct coda_release_out {
+    struct coda_out_hdr out;
+};
+
+/* coda_close: */
+struct coda_close_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    int	flags;
+};
+
+struct coda_close_out {
+    struct coda_out_hdr out;
+};
+
+/* coda_ioctl: */
+struct coda_ioctl_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    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 VFid;
+};
+
+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 VFid;
+    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 VFid;
+    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 VFid;
+    int         name;		/* Place holder for data. */
+    int         flags;	
+};
+
+struct coda_lookup_out {
+    struct coda_out_hdr oh;
+    struct CodaFid VFid;
+    int	vtype;
+};
+
+
+/* coda_create: */
+struct coda_create_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    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 VFid;
+    struct coda_vattr attr;
+};
+
+
+/* coda_remove: NO_OUT */
+struct coda_remove_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    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 VFid;
+    struct coda_vattr attr;
+    int	   name;		/* Place holder for data. */
+};
+
+struct coda_mkdir_out {
+    struct coda_out_hdr oh;
+    struct CodaFid VFid;
+    struct coda_vattr attr;
+};
+
+
+/* coda_rmdir: NO_OUT */
+struct coda_rmdir_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    int name;		/* Place holder for data. */
+};
+
+struct coda_rmdir_out {
+    struct coda_out_hdr out;
+};
+
+/* coda_symlink: NO_OUT */
+struct coda_symlink_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;	/* 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 VFid;
+};
+
+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 VFid;
+};
+
+struct coda_fsync_out {
+    struct coda_out_hdr out;
+};
+
+/* coda_vget: */
+struct coda_vget_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+};
+
+struct coda_vget_out {
+    struct coda_out_hdr oh;
+    struct CodaFid VFid;
+    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;
+    vuid_t uid;
+};
+
+/* coda_zapfile: */
+/* CODA_ZAPFILE is a venus->kernel call */
+struct coda_zapfile_out {  
+    struct coda_out_hdr oh;
+    struct CodaFid CodaFid;
+};
+
+/* coda_zapdir: */
+/* CODA_ZAPDIR is a venus->kernel call */	
+struct coda_zapdir_out {	  
+    struct coda_out_hdr oh;
+    struct CodaFid CodaFid;
+};
+
+/* coda_purgefid: */
+/* CODA_PURGEFID is a venus->kernel call */	
+struct coda_purgefid_out { 
+    struct coda_out_hdr oh;
+    struct CodaFid CodaFid;
+};
+
+/* 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 VFid;
+    int        flags;
+};
+
+struct coda_open_by_fd_out {
+    struct coda_out_hdr oh;
+    int fd;
+
+#ifdef __KERNEL__
+    struct file *fh; /* not passed from userspace but used in-kernel only */
+#endif
+};
+
+/* coda_open_by_path: */
+struct coda_open_by_path_in {
+    struct coda_in_hdr ih;
+    struct CodaFid VFid;
+    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 in;
+};
+
+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_store_in coda_store;
+    struct coda_release_in coda_release;
+    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_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_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_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_purgefid_out purgefid;
+    struct coda_replace_out replace;
+};
+
+
+/*
+ * Used for identifying usage of "Control" and pioctls
+ */
+
+#define PIOCPARM_MASK 0x0000ffff
+struct ViceIoctl {
+        void __user *in;        /* Data to be transferred in */
+        void __user *out;       /* Data to be transferred out */
+        u_short in_size;        /* Size of input buffer <= 2K */
+        u_short out_size;       /* Maximum size of output buffer, <= 2K */
+};
+
+struct PioctlData {
+        const char __user *path;
+        int follow;
+        struct ViceIoctl vi;
+};
+
+#define CODA_CONTROL		".CONTROL"
+#define CODA_CONTROLLEN		8
+#define CTL_INO			-1
+
+/* Data passed to mount */
+
+#define CODA_MOUNT_VERSION 1
+
+struct coda_mount_data {
+	int		version;
+	int		fd;       /* Opened device */
+};
+
+#endif 
+