include/sys/vnode.h

   1 #ifndef _SPL_VNODE_H
   2 #define _SPL_VNODE_H
   3
   4 #ifdef  __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <linux/module.h>
   9 #include <linux/syscalls.h>
  10 #include <linux/fcntl.h>
  11 #include <linux/uaccess.h>
  12 #include <linux/buffer_head.h>
  13 #include <linux/dcache.h>
  14 #include <linux/namei.h>
  15 #include <linux/file.h>
  16 #include <linux/fs.h>
  17 #include <sys/kmem.h>
  18 #include <sys/mutex.h>
  19 #include <sys/types.h>
  20 #include <sys/time.h>
  21 #include <sys/uio.h>
  22 #include <sys/sunldi.h>
  23
  24 #define XVA_MAPSIZE     3
  25 #define XVA_MAGIC       0x78766174
  26
  27 #define O_DSYNC         040000000
  28
  29 #define FREAD           1
  30 #define FWRITE          2
  31 #define FCREAT          O_CREAT
  32 #define FTRUNC          O_TRUNC
  33 #define FOFFMAX         O_LARGEFILE
  34 #define FSYNC           O_SYNC
  35 #define FDSYNC          O_DSYNC
  36 #define FRSYNC          O_RSYNC
  37 #define FEXCL           O_EXCL
  38 #define FDIRECT         O_DIRECT
  39 #define FAPPEND         O_APPEND
  40
  41 #define FNODSYNC        0x10000 /* fsync pseudo flag */
  42 #define FNOFOLLOW       0x20000 /* don't follow symlinks */
  43
  44 #define AT_TYPE         0x00001
  45 #define AT_MODE         0x00002
  46 #undef  AT_UID          /* Conflicts with linux/auxvec.h */
  47 #define AT_UID          0x00004
  48 #undef  AT_GID          /* Conflicts with linux/auxvec.h */
  49 #define AT_GID          0x00008
  50 #define AT_FSID         0x00010
  51 #define AT_NODEID       0x00020
  52 #define AT_NLINK        0x00040
  53 #define AT_SIZE         0x00080
  54 #define AT_ATIME        0x00100
  55 #define AT_MTIME        0x00200
  56 #define AT_CTIME        0x00400
  57 #define AT_RDEV         0x00800
  58 #define AT_BLKSIZE      0x01000
  59 #define AT_NBLOCKS      0x02000
  60 #define AT_SEQ          0x08000
  61 #define AT_XVATTR       0x10000
  62
  63 #define CRCREAT         0x01
  64 #define RMFILE          0x02
  65
  66 #define B_INVAL         0x01
  67 #define B_TRUNC         0x02
  68
  69 typedef enum vtype {
  70         VNON            = 0,
  71         VREG            = 1,
  72         VDIR            = 2,
  73         VBLK            = 3,
  74         VCHR            = 4,
  75         VLNK            = 5,
  76         VFIFO           = 6,
  77         VDOOR           = 7,
  78         VPROC           = 8,
  79         VSOCK           = 9,
  80         VPORT           = 10,
  81         VBAD            = 11
  82 } vtype_t;
  83
  84 typedef struct vattr {
  85         enum vtype     va_type;      /* vnode type */
  86         u_int          va_mask;      /* attribute bit-mask */
  87         u_short        va_mode;      /* acc mode */
  88         short          va_uid;       /* owner uid */
  89         short          va_gid;       /* owner gid */
  90         long           va_fsid;      /* fs id */
  91         long           va_nodeid;    /* node # */
  92         short          va_nlink;     /* # links */
  93         u_long         va_size;      /* file size */
  94         long           va_blocksize; /* block size */
  95         struct timeval va_atime;     /* last acc */
  96         struct timeval va_mtime;     /* last mod */
  97         struct timeval va_ctime;     /* last chg */
  98         dev_t          va_rdev;      /* dev */
  99         long           va_blocks;    /* space used */
 100 } vattr_t;
 101
 102 typedef struct xoptattr {
 103         timestruc_t     xoa_createtime; /* Create time of file */
 104         uint8_t         xoa_archive;
 105         uint8_t         xoa_system;
 106         uint8_t         xoa_readonly;
 107         uint8_t         xoa_hidden;
 108         uint8_t         xoa_nounlink;
 109         uint8_t         xoa_immutable;
 110         uint8_t         xoa_appendonly;
 111         uint8_t         xoa_nodump;
 112         uint8_t         xoa_settable;
 113         uint8_t         xoa_opaque;
 114         uint8_t         xoa_av_quarantined;
 115         uint8_t         xoa_av_modified;
 116 } xoptattr_t;
 117
 118 typedef struct xvattr {
 119         vattr_t         xva_vattr;      /* Embedded vattr structure */
 120         uint32_t        xva_magic;      /* Magic Number */
 121         uint32_t        xva_mapsize;    /* Size of attr bitmap (32-bit words) */
 122         uint32_t        *xva_rtnattrmapp;       /* Ptr to xva_rtnattrmap[] */
 123         uint32_t        xva_reqattrmap[XVA_MAPSIZE];    /* Requested attrs */
 124         uint32_t        xva_rtnattrmap[XVA_MAPSIZE];    /* Returned attrs */
 125         xoptattr_t      xva_xoptattrs;  /* Optional attributes */
 126 } xvattr_t;
 127
 128 typedef struct vsecattr {
 129         uint_t          vsa_mask;       /* See below */
 130         int             vsa_aclcnt;     /* ACL entry count */
 131         void            *vsa_aclentp;   /* pointer to ACL entries */
 132         int             vsa_dfaclcnt;   /* default ACL entry count */
 133         void            *vsa_dfaclentp; /* pointer to default ACL entries */
 134         size_t          vsa_aclentsz;   /* ACE size in bytes of vsa_aclentp */
 135 } vsecattr_t;
 136
 137 typedef struct vnode {
 138         struct file     *v_file;
 139         kmutex_t        v_lock;         /* protects vnode fields */
 140         uint_t          v_flag;         /* vnode flags (see below) */
 141         uint_t          v_count;        /* reference count */
 142         void            *v_data;        /* private data for fs */
 143         struct vfs      *v_vfsp;        /* ptr to containing VFS */
 144         struct stdata   *v_stream;      /* associated stream */
 145         enum vtype      v_type;         /* vnode type */
 146         dev_t           v_rdev;         /* device (VCHR, VBLK) */
 147 } vnode_t;
 148
 149 typedef struct vn_file {
 150         int                     f_fd;      /* linux fd for lookup */
 151         struct file             *f_file;   /* linux file struct */
 152         atomic_t                f_ref;     /* ref count */
 153         kmutex_t                f_lock;    /* struct lock */
 154         loff_t                  f_offset;  /* offset */
 155         vnode_t                 *f_vnode;  /* vnode */
 156         struct list_head        f_list;    /* list of referenced file_t's */
 157 } file_t;
 158
 159 extern vnode_t *vn_alloc(int flag);
 160 void vn_free(vnode_t *vp);
 161 extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode,
 162                    vnode_t **vpp, int x1, void *x2);
 163 extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode,
 164                      vnode_t **vpp, int x1, void *x2, vnode_t *vp, int fd);
 165 extern int vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len,
 166                    offset_t off, uio_seg_t seg, int x1, rlim64_t x2,
 167                    void *x3, ssize_t *residp);
 168 extern int vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4);
 169 extern int vn_remove(const char *path, uio_seg_t seg, int flags);
 170 extern int vn_rename(const char *path1, const char *path2, int x1);
 171 extern int vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4);
 172 extern int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4);
 173 extern file_t *vn_getf(int fd);
 174 extern void vn_releasef(int fd);
 175
 176 int vn_init(void);
 177 void vn_fini(void);
 178
 179 static __inline__ int
 180 vn_rele(vnode_t *vp)
 181 {
 182         return 0;
 183 } /* vn_rele() */
 184
 185 static __inline__ int
 186 vn_putpage(vnode_t *vp, offset_t off, ssize_t size,
 187            int flags, void *x1, void *x2) {
 188         return 0;
 189 } /* vn_putpage() */
 190
 191 #define VOP_CLOSE                               vn_close
 192 #define VN_RELE                                 vn_rele
 193 #define VOP_GETATTR                             vn_getattr
 194 #define VOP_FSYNC                               vn_fsync
 195 #define VOP_PUTPAGE                             vn_putpage
 196 #define vn_is_readonly(vp)                      0
 197 #define getf                                    vn_getf
 198 #define releasef                                vn_releasef
 199
 200 extern void *rootdir;
 201
 202 #ifdef  __cplusplus
 203 }
 204 #endif
 205
 206 #endif /* SPL_VNODE_H */