include/sys/vnode.h

   1 #ifndef _SPL_VNODE_H
   2 #define _SPL_VNODE_H
   3
   4 #include <linux/module.h>
   5 #include <linux/syscalls.h>
   6 #include <linux/fcntl.h>
   7 #include <linux/uaccess.h>
   8 #include <linux/buffer_head.h>
   9 #include <linux/dcache.h>
  10 #include <linux/namei.h>
  11 #include <linux/fs.h>
  12 #include <sys/kmem.h>
  13 #include <sys/mutex.h>
  14 #include <sys/types.h>
  15 #include <sys/time.h>
  16 #include <sys/uio.h>
  17
  18 #define XVA_MAPSIZE     3
  19 #define XVA_MAGIC       0x78766174
  20
  21 #define O_DSYNC         040000000
  22
  23 #define FREAD           1
  24 #define FWRITE          2
  25 #define FCREAT          O_CREAT
  26 #define FTRUNC          O_TRUNC
  27 #define FOFFMAX         O_LARGEFILE
  28 #define FSYNC           O_SYNC
  29 #define FDSYNC          O_DSYNC
  30 #define FRSYNC          O_RSYNC
  31 #define FEXCL           O_EXCL
  32 #define FDIRECT         O_DIRECT
  33
  34 #define FNODSYNC        0x10000 /* fsync pseudo flag */
  35 #define FNOFOLLOW       0x20000 /* don't follow symlinks */
  36
  37 #define AT_TYPE         0x00001
  38 #define AT_MODE         0x00002
  39 #undef  AT_UID          /* Conflicts with linux/auxvec.h */
  40 #define AT_UID          0x00004
  41 #undef  AT_GID          /* Conflicts with linux/auxvec.h */
  42 #define AT_GID          0x00008
  43 #define AT_FSID         0x00010
  44 #define AT_NODEID       0x00020
  45 #define AT_NLINK        0x00040
  46 #define AT_SIZE         0x00080
  47 #define AT_ATIME        0x00100
  48 #define AT_MTIME        0x00200
  49 #define AT_CTIME        0x00400
  50 #define AT_RDEV         0x00800
  51 #define AT_BLKSIZE      0x01000
  52 #define AT_NBLOCKS      0x02000
  53 #define AT_SEQ          0x08000
  54 #define AT_XVATTR       0x10000
  55
  56 #define CRCREAT         0x01
  57 #define RMFILE          0x02
  58
  59 #define B_INVAL         0x01
  60 #define B_TRUNC         0x02
  61
  62 typedef enum vtype {
  63         VNON            = 0,
  64         VREG            = 1,
  65         VDIR            = 2,
  66         VBLK            = 3,
  67         VCHR            = 4,
  68         VLNK            = 5,
  69         VFIFO           = 6,
  70         VDOOR           = 7,
  71         VPROC           = 8,
  72         VSOCK           = 9,
  73         VPORT           = 10,
  74         VBAD            = 11
  75 } vtype_t;
  76
  77 typedef struct vattr {
  78         enum vtype     va_type;      /* vnode type */
  79         u_int          va_mask;      /* attribute bit-mask */
  80         u_short        va_mode;      /* acc mode */
  81         short          va_uid;       /* owner uid */
  82         short          va_gid;       /* owner gid */
  83         long           va_fsid;      /* fs id */
  84         long           va_nodeid;    /* node # */
  85         short          va_nlink;     /* # links */
  86         u_long         va_size;      /* file size */
  87         long           va_blocksize; /* block size */
  88         struct timeval va_atime;     /* last acc */
  89         struct timeval va_mtime;     /* last mod */
  90         struct timeval va_ctime;     /* last chg */
  91         dev_t          va_rdev;      /* dev */
  92         long           va_blocks;    /* space used */
  93 } vattr_t;
  94
  95 typedef struct xoptattr {
  96         timestruc_t     xoa_createtime; /* Create time of file */
  97         uint8_t         xoa_archive;
  98         uint8_t         xoa_system;
  99         uint8_t         xoa_readonly;
 100         uint8_t         xoa_hidden;
 101         uint8_t         xoa_nounlink;
 102         uint8_t         xoa_immutable;
 103         uint8_t         xoa_appendonly;
 104         uint8_t         xoa_nodump;
 105         uint8_t         xoa_settable;
 106         uint8_t         xoa_opaque;
 107         uint8_t         xoa_av_quarantined;
 108         uint8_t         xoa_av_modified;
 109 } xoptattr_t;
 110
 111 typedef struct xvattr {
 112         vattr_t         xva_vattr;      /* Embedded vattr structure */
 113         uint32_t        xva_magic;      /* Magic Number */
 114         uint32_t        xva_mapsize;    /* Size of attr bitmap (32-bit words) */
 115         uint32_t        *xva_rtnattrmapp;       /* Ptr to xva_rtnattrmap[] */
 116         uint32_t        xva_reqattrmap[XVA_MAPSIZE];    /* Requested attrs */
 117         uint32_t        xva_rtnattrmap[XVA_MAPSIZE];    /* Returned attrs */
 118         xoptattr_t      xva_xoptattrs;  /* Optional attributes */
 119 } xvattr_t;
 120
 121 typedef struct vsecattr {
 122         uint_t          vsa_mask;       /* See below */
 123         int             vsa_aclcnt;     /* ACL entry count */
 124         void            *vsa_aclentp;   /* pointer to ACL entries */
 125         int             vsa_dfaclcnt;   /* default ACL entry count */
 126         void            *vsa_dfaclentp; /* pointer to default ACL entries */
 127         size_t          vsa_aclentsz;   /* ACE size in bytes of vsa_aclentp */
 128 } vsecattr_t;
 129
 130 typedef struct vnode {
 131         struct file     *v_fp;
 132         kmutex_t        v_lock;         /* protects vnode fields */
 133         uint_t          v_flag;         /* vnode flags (see below) */
 134         uint_t          v_count;        /* reference count */
 135         void            *v_data;        /* private data for fs */
 136         struct vfs      *v_vfsp;        /* ptr to containing VFS */
 137         struct stdata   *v_stream;      /* associated stream */
 138         enum vtype      v_type;         /* vnode type */
 139         dev_t           v_rdev;         /* device (VCHR, VBLK) */
 140 } vnode_t;
 141
 142 extern vnode_t *vn_alloc(int flag);
 143 void vn_free(vnode_t *vp);
 144 extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode,
 145                    vnode_t **vpp, int x1, void *x2);
 146 extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode,
 147                      vnode_t **vpp, int x1, void *x2, vnode_t *vp, int fd);
 148 extern int vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len,
 149                    offset_t off, uio_seg_t seg, int x1, rlim64_t x2,
 150                    void *x3, ssize_t *residp);
 151 extern int vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4);
 152 extern int vn_remove(const char *path, uio_seg_t seg, int flags);
 153 extern int vn_rename(const char *path1, const char *path2, int x1);
 154 extern int vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4);
 155 extern int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4);
 156
 157 int vn_init(void);
 158 void vn_fini(void);
 159
 160 static __inline__ int
 161 vn_rele(vnode_t *vp)
 162 {
 163         return 0;
 164 } /* vn_rele() */
 165
 166 static __inline__ int
 167 vn_putpage(vnode_t *vp, offset_t off, ssize_t size,
 168            int flags, void *x1, void *x2) {
 169         return 0;
 170 } /* vn_putpage() */
 171
 172 #define VOP_CLOSE                               vn_close
 173 #define VN_RELE                                 vn_rele
 174 #define VOP_GETATTR                             vn_getattr
 175 #define VOP_FSYNC                               vn_fsync
 176 #define VOP_PUTPAGE                             vn_putpage
 177 #define vn_is_readonly(vp)                      0
 178
 179 extern void *rootdir;
 180
 181 #endif /* SPL_VNODE_H */