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Annotation of src/sys/adosfs/adosfs.h, Revision 1.17.16.2

1.17.16.2! jdolecek    1: /*     $NetBSD: adosfs.h,v 1.17.16.1 2002/01/10 19:35:53 thorpej Exp $ */
1.4       cgd         2:
1.1       chopps      3: /*
                      4:  * Copyright (c) 1994 Christian E. Hopps
1.10      mhitch      5:  * Copyright (c) 1996 Matthias Scheler
1.1       chopps      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *      This product includes software developed by Christian E. Hopps.
                     19:  * 4. The name of the author may not be used to endorse or promote products
                     20:  *    derived from this software without specific prior written permission
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     23:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     24:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     25:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     26:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     27:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     28:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     29:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     30:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     31:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     32:  */
                     33:
                     34: /*
1.13      fvdl       35:  * Arguments to mount amigados filesystems.
                     36:  */
                     37: struct adosfs_args {
                     38:        char    *fspec;         /* blocks special holding the fs to mount */
                     39:        struct  export_args export;     /* network export information */
1.14      kleink     40:        uid_t   uid;            /* uid that owns adosfs files */
                     41:        gid_t   gid;            /* gid that owns adosfs files */
                     42:        mode_t  mask;           /* mask to be applied for adosfs perms */
1.13      fvdl       43: };
                     44:
                     45: #ifdef _KERNEL
1.17.16.1  thorpej    46: #include <miscfs/genfs/genfs_node.h>
                     47:
1.13      fvdl       48: /*
1.1       chopps     49:  * Amigados datestamp. (from 1/1/1978 00:00:00 local)
                     50:  */
                     51: struct datestamp {
1.12      thorpej    52:        u_int32_t days;
                     53:        u_int32_t mins;
                     54:        u_int32_t ticks;        /* 20000 * (ticks % 50) = useconds */
1.1       chopps     55:                                /* ticks / 50 = seconds */
                     56: };
                     57:
                     58: enum anode_type { AROOT, ADIR, AFILE, ALDIR, ALFILE, ASLINK };
                     59:
                     60: /*
                     61:  * similar to inode's, we use to represent:
                     62:  * the root dir, reg dirs, reg files and extension blocks
                     63:  * note the ``tab'' is a hash table for r/d, and a data block
                     64:  * table for f/e. it is always ANODETABSZ(ap) bytes in size.
                     65:  */
                     66: struct anode {
1.17.16.1  thorpej    67:        struct genfs_node gnode;
1.1       chopps     68:        LIST_ENTRY(anode) link;
                     69:        enum anode_type type;
                     70:        char name[31];          /* (r/d/f) name for object */
                     71:        struct datestamp mtimev;        /* (r) volume modified */
                     72:        struct datestamp created;       /* (r) volume created */
                     73:        struct datestamp mtime; /* (r/d/f) last modified */
1.7       mycroft    74:        struct adosfsmount *amp;        /* owner file system */
1.1       chopps     75:        struct vnode *vp;       /* owner vnode */
                     76:        u_long fsize;           /* (f) size of file in bytes */
                     77:        u_long block;           /* block num */
                     78:        u_long pblock;          /* (d/f/e) parent block */
                     79:        u_long hashf;           /* (d/f) hash forward */
                     80:        u_long extb;            /* (f/e) extension block number */
                     81:        u_long linkto;          /* (hd/hf) header this link points at */
                     82:        u_long linknext;        /* (d/f/hd/hf) next link (or head) in chain */
1.5       chopps     83:        u_long lastlindblk;     /* (f/hf) last logical indirect block */
                     84:        u_long lastindblk;      /* (f/hf) last indirect block read */
1.1       chopps     85:        u_long *tab;            /* (r/d) hash table */
                     86:        int *tabi;              /* (r/d) table info */
                     87:        int ntabent;            /* (r/d) number of entries in table */
                     88:        int nwords;             /* size of blocks in long words */
                     89:        int adprot;             /* (d/f) amigados protection bits */
1.6       chopps     90:        uid_t  uid;             /* (d/f) uid of directory/file */
                     91:        gid_t  gid;             /* (d/f) gid of directory/file */
1.1       chopps     92:        int flags;              /* misc flags */
                     93:        char *slinkto;          /* name of file or dir */
                     94: };
1.10      mhitch     95: #define VTOA(vp)               ((struct anode *)(vp)->v_data)
                     96: #define ATOV(ap)               ((ap)->vp)
                     97: #define ANODETABSZ(ap)         (((ap)->nwords - 56) * sizeof(long))
                     98: #define ANODETABENT(ap)                ((ap)->nwords - 56)
1.1       chopps     99: #define ANODENDATBLKENT(ap)    ((ap)->nwords - 56)
                    100:
                    101: /*
                    102:  * mount data
                    103:  */
                    104: #define ANODEHASHSZ (512)
                    105:
1.7       mycroft   106: struct adosfsmount {
1.1       chopps    107:        LIST_HEAD(anodechain, anode) anodetab[ANODEHASHSZ];
                    108:        struct mount *mp;       /* owner mount */
1.12      thorpej   109:        u_int32_t dostype;      /* type of volume */
1.1       chopps    110:        u_long rootb;           /* root block number */
1.10      mhitch    111:        u_long secsperblk;      /* sectors per block */
1.1       chopps    112:        u_long bsize;           /* size of blocks */
                    113:        u_long nwords;          /* size of blocks in long words */
1.10      mhitch    114:        u_long dbsize;          /* data bytes per block */
1.1       chopps    115:        uid_t  uid;             /* uid of mounting user */
                    116:        gid_t  gid;             /* gid of mounting user */
                    117:        u_long mask;            /* mode mask */
                    118:        struct vnode *devvp;    /* blk device mounted on */
                    119:        struct vnode *rootvp;   /* out root vnode */
1.8       chopps    120:        struct netexport export;
1.10      mhitch    121:        u_long *bitmap;         /* allocation bitmap */
                    122:        u_long numblks;         /* number of usable blocks */
                    123:        u_long freeblks;        /* number of free blocks */
1.1       chopps    124: };
1.13      fvdl      125:
1.7       mycroft   126: #define VFSTOADOSFS(mp) ((struct adosfsmount *)(mp)->mnt_data)
1.1       chopps    127:
1.10      mhitch    128: #define IS_FFS(amp)    ((amp)->dostype & 1)
                    129: #define IS_INTER(amp)  (((amp)->dostype & 7) > 1)
                    130:
1.1       chopps    131: /*
                    132:  * AmigaDOS block stuff.
                    133:  */
1.10      mhitch    134: #define BBOFF          (0)
                    135:
1.12      thorpej   136: #define BPT_SHORT      ((u_int32_t)2)
                    137: #define BPT_DATA       ((u_int32_t)8)
                    138: #define BPT_LIST       ((u_int32_t)16)
                    139:
                    140: #define BST_RDIR       ((u_int32_t)1)
                    141: #define BST_UDIR       ((u_int32_t)2)
                    142: #define BST_SLINK      ((u_int32_t)3)
                    143: #define BST_LDIR       ((u_int32_t)4)
                    144: #define BST_FILE       ((u_int32_t)-3)
                    145: #define BST_LFILE      ((u_int32_t)-4)
1.1       chopps    146:
1.10      mhitch    147: #define        OFS_DATA_OFFSET (24)
1.15      thorpej   148:
                    149: extern struct pool adosfs_node_pool;
1.10      mhitch    150:
1.1       chopps    151: /*
                    152:  * utility protos
                    153:  */
1.16      kleink    154: #if BYTE_ORDER != BIG_ENDIAN
1.12      thorpej   155: u_int32_t adoswordn __P((struct buf *, int));
1.10      mhitch    156: #else
1.12      thorpej   157: #define adoswordn(bp,wn) (*((u_int32_t *)(bp)->b_data + (wn)))
1.10      mhitch    158: #endif
                    159:
1.12      thorpej   160: u_int32_t adoscksum __P((struct buf *, int));
1.11      is        161: int adoscaseequ __P((const u_char *, const u_char *, int, int));
1.10      mhitch    162: int adoshash __P((const u_char *, int, int, int));
1.9       christos  163: int adunixprot __P((int));
                    164: int adosfs_getblktype __P((struct adosfsmount *, struct buf *));
1.1       chopps    165:
1.2       chopps    166: struct vnode *adosfs_ahashget __P((struct mount *, ino_t));
1.7       mycroft   167: void adosfs_ainshash __P((struct adosfsmount *, struct anode *));
1.2       chopps    168: void adosfs_aremhash __P((struct anode *));
1.1       chopps    169:
1.9       christos  170: int adosfs_lookup __P((void *));
1.2       chopps    171:
1.17.16.2! jdolecek  172: extern int (**adosfs_vnodeop_p) __P((void *));
1.13      fvdl      173: #endif /* _KERNEL */

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