| /* |
| 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 |
| #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__ |
| 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; |
| |
| }; |
| |
| /* 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 *in; /* Data to be transferred in */ |
| void *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 *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 |
| |