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Annotation of XNU/bsd/isofs/cd9660/cd9660_node.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*     $NetBSD: cd9660_node.h,v 1.10 1994/12/24 15:30:09 cgd Exp $     */
        !            23: 
        !            24: /*-
        !            25:  * Copyright (c) 1994
        !            26:  *     The Regents of the University of California.  All rights reserved.
        !            27:  *
        !            28:  * This code is derived from software contributed to Berkeley
        !            29:  * by Pace Willisson ([email protected]).  The Rock Ridge Extension
        !            30:  * Support code is derived from software contributed to Berkeley
        !            31:  * by Atsushi Murai ([email protected]).
        !            32:  *
        !            33:  * Redistribution and use in source and binary forms, with or without
        !            34:  * modification, are permitted provided that the following conditions
        !            35:  * are met:
        !            36:  * 1. Redistributions of source code must retain the above copyright
        !            37:  *    notice, this list of conditions and the following disclaimer.
        !            38:  * 2. Redistributions in binary form must reproduce the above copyright
        !            39:  *    notice, this list of conditions and the following disclaimer in the
        !            40:  *    documentation and/or other materials provided with the distribution.
        !            41:  * 3. All advertising materials mentioning features or use of this software
        !            42:  *    must display the following acknowledgement:
        !            43:  *     This product includes software developed by the University of
        !            44:  *     California, Berkeley and its contributors.
        !            45:  * 4. Neither the name of the University nor the names of its contributors
        !            46:  *    may be used to endorse or promote products derived from this software
        !            47:  *    without specific prior written permission.
        !            48:  *
        !            49:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            50:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            51:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            52:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            53:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            54:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            55:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            56:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            57:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            58:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            59:  * SUCH DAMAGE.
        !            60:  *
        !            61:  *     @(#)cd9660_node.h       8.4 (Berkeley) 12/5/94
        !            62: 
        !            63: 
        !            64: 
        !            65:  * HISTORY
        !            66:  * 22-Jan-98   radar 1669467 - ISO 9660 CD support - jwc
        !            67:  * 17-Feb-98   radar 1669467 - changed lock protocol to use the lock manager -chw
        !            68: 
        !            69:  */
        !            70: 
        !            71: /*
        !            72:  * Theoretically, directories can be more than 2Gb in length,
        !            73:  * however, in practice this seems unlikely. So, we define
        !            74:  * the type doff_t as a long to keep down the cost of doing
        !            75:  * lookup on a 32-bit machine. If you are porting to a 64-bit
        !            76:  * architecture, you should make doff_t the same as off_t.
        !            77:  */
        !            78: 
        !            79: //  We're using the lock manager now so include lock.h
        !            80: #include <sys/lock.h>
        !            81: 
        !            82: #define doff_t long
        !            83: 
        !            84: typedef        struct  {
        !            85:        struct timespec iso_atime;      /* time of last access */
        !            86:        struct timespec iso_mtime;      /* time of last modification */
        !            87:        struct timespec iso_ctime;      /* time file changed */
        !            88:        u_short         iso_mode;       /* files access mode and type */
        !            89:        uid_t           iso_uid;        /* owner user id */
        !            90:        gid_t           iso_gid;        /* owner group id */
        !            91:        short           iso_links;      /* links of file */
        !            92:        dev_t           iso_rdev;       /* Major/Minor number for special */
        !            93: } ISO_RRIP_INODE;
        !            94: 
        !            95: #ifdef ISODEVMAP
        !            96: /*
        !            97:  * FOr device# (major,minor) translation table
        !            98:  */
        !            99: struct iso_dnode {
        !           100:        struct iso_dnode *d_next, **d_prev;     /* hash chain */
        !           101:        dev_t           i_dev;          /* device where dnode resides */
        !           102:        ino_t           i_number;       /* the identity of the inode */
        !           103:        dev_t           d_dev;          /* device # for translation */
        !           104: };
        !           105: #endif
        !           106: 
        !           107: struct iso_node {
        !           108:        struct  iso_node *i_next, **i_prev;     /* hash chain */
        !           109:        struct  vnode *i_vnode; /* vnode associated with this inode */
        !           110:        struct  vnode *i_devvp; /* vnode for block I/O */
        !           111:        u_long  i_flag;         /* see below */
        !           112:        dev_t   i_dev;          /* device where inode resides */
        !           113:        ino_t   i_number;       /* the identity of the inode */
        !           114:                                /* we use the actual starting block of the file */
        !           115:        struct  iso_mnt *i_mnt; /* filesystem associated with this inode */
        !           116:        struct  lockf *i_lockf; /* head of byte-level lock list */
        !           117:        doff_t  i_endoff;       /* end of useful stuff in directory */
        !           118:        doff_t  i_diroff;       /* offset in dir, where we found last entry */
        !           119:        doff_t  i_offset;       /* offset of free space in directory */
        !           120:        ino_t   i_ino;          /* inode number of found directory */
        !           121: 
        !           122: // radar 1669467  Kill the lockwaiter pid and add an i_lock structure for
        !           123: //               the lock manager.  Killing the lockwaiter will help me find
        !           124: //               places where I need to add lockmanager calls
        !           125: 
        !           126:         struct   lock__bsd__ i_lock;    /* Inode lock. */
        !           127:        long iso_extent;        /* extent of file */
        !           128:        long i_size;
        !           129:        long iso_start;         /* actual start of data of file (may be different */
        !           130:                                /* from iso_extent, if file has extended attributes) */
        !           131:        ISO_RRIP_INODE  inode;
        !           132:        
        !           133: #if 1 // radar 1669467 - need these in order to support Apple extensions to ISO directory rec
        !           134:        u_int32_t                       i_FileType;                     // MacOS file type - defaults to 'TEXT'
        !           135:        u_int32_t                       i_Creator;                      // MacOS file creator type - defaults to 'hscd'
        !           136:        u_int16_t                       i_FinderFlags;          // MacOS finder flags - defaults to fInitedBit set
        !           137: #endif // radar 1669467
        !           138:        ino_t   i_parent;               /* inode number of parent directory */
        !           139:        u_char  i_name[32];             /* name of node */
        !           140: };
        !           141: 
        !           142: #define        i_forw          i_chain[0]
        !           143: #define        i_back          i_chain[1]
        !           144: 
        !           145: /* flags */
        !           146: // radar 1669467  Kill the IN_LOCKED and IN_WANTED flags since we're now using
        !           147: //               the lock manager.  Killing the flags will help me find
        !           148: //               places where I need to add lockmanager calls
        !           149: 
        !           150: // #define     IN_LOCKED       0x0001          /* inode is locked */
        !           151: // #define     IN_WANTED       0x0002          /* some process waiting on lock */
        !           152: 
        !           153: #define        IN_ACCESS       0x0020          /* inode access time to be updated */
        !           154: 
        !           155: #define VTOI(vp) ((struct iso_node *)(vp)->v_data)
        !           156: #define ITOV(ip) ((ip)->i_vnode)
        !           157: 
        !           158: /*
        !           159:  * Prototypes for ISOFS vnode operations
        !           160:  */
        !           161: int cd9660_lookup __P((struct vop_lookup_args *));
        !           162: int cd9660_open __P((struct vop_open_args *));
        !           163: int cd9660_close __P((struct vop_close_args *));
        !           164: int cd9660_access __P((struct vop_access_args *));
        !           165: int cd9660_getattr __P((struct vop_getattr_args *));
        !           166: int cd9660_read __P((struct vop_read_args *));
        !           167: int cd9660_ioctl __P((struct vop_ioctl_args *));
        !           168: int cd9660_select __P((struct vop_select_args *));
        !           169: int cd9660_mmap __P((struct vop_mmap_args *));
        !           170: int cd9660_seek __P((struct vop_seek_args *));
        !           171: int cd9660_readdir __P((struct vop_readdir_args *));
        !           172: int cd9660_readlink __P((struct vop_readlink_args *));
        !           173: int cd9660_abortop __P((struct vop_abortop_args *));
        !           174: int cd9660_inactive __P((struct vop_inactive_args *));
        !           175: int cd9660_reclaim __P((struct vop_reclaim_args *));
        !           176: int cd9660_bmap __P((struct vop_bmap_args *));
        !           177: int cd9660_lock __P((struct vop_lock_args *));
        !           178: int cd9660_unlock __P((struct vop_unlock_args *));
        !           179: int cd9660_strategy __P((struct vop_strategy_args *));
        !           180: int cd9660_print __P((struct vop_print_args *));
        !           181: int cd9660_islocked __P((struct vop_islocked_args *));
        !           182: int cd9660_pathconf __P((struct vop_pathconf_args *));
        !           183: int cd9660_blkatoff __P((struct vop_blkatoff_args *));
        !           184: 
        !           185: void cd9660_defattr __P((struct iso_directory_record *,
        !           186:                        struct iso_node *, struct buf *));
        !           187: void cd9660_deftstamp __P((struct iso_directory_record *,
        !           188:                        struct iso_node *, struct buf *));
        !           189: struct vnode *cd9660_ihashget __P((dev_t, ino_t, struct proc *));
        !           190: void cd9660_ihashins __P((struct iso_node *));
        !           191: void cd9660_ihashrem __P((struct iso_node *));
        !           192: int cd9660_tstamp_conv7 __P((u_char *, struct timespec *));
        !           193: int cd9660_tstamp_conv17 __P((u_char *, struct timespec *));
        !           194: ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *));
        !           195: #ifdef ISODEVMAP
        !           196: struct iso_dnode *iso_dmap __P((dev_t, ino_t, int));
        !           197: void iso_dunmap __P((dev_t));
        !           198: #endif

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