include/freebsd.h

   1 /*
   2  * Copyright (c) 2004-2006 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public License
   7  * as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #ifndef __XFS_FREEBSD_H__
  19 #define __XFS_FREEBSD_H__
  20
  21 #include <sys/stat.h>
  22 #include <sys/param.h>
  23 #include <sys/ioccom.h>
  24 #include <sys/mount.h>
  25 #include <ctype.h>
  26 #include <libgen.h>
  27 #include <paths.h>
  28 #include <uuid.h>
  29 #include <mntent.h>
  30
  31 #include <sys/endian.h>
  32 #define __BYTE_ORDER    BYTE_ORDER
  33 #define __BIG_ENDIAN    BIG_ENDIAN
  34 #define __LITTLE_ENDIAN LITTLE_ENDIAN
  35
  36 /* FreeBSD file API is 64-bit aware */
  37 #define fdatasync       fsync
  38 #define memalign(a,sz)  valloc(sz)
  39
  40 #define EFSCORRUPTED    990     /* Filesystem is corrupted */
  41 #define EFSBADCRC       991     /* Bad CRC detected */
  42
  43 typedef unsigned char           __u8;
  44 typedef signed char             __s8;
  45 typedef unsigned short          __u16;
  46 typedef signed short            __s16;
  47 typedef unsigned int            __u32;
  48 typedef signed int              __s32;
  49 typedef unsigned long long int  __u64;
  50 typedef signed long long int    __s64;
  51
  52 typedef off_t           xfs_off_t;
  53 typedef uint64_t        xfs_ino_t;
  54 typedef uint32_t        xfs_dev_t;
  55 typedef int64_t         xfs_daddr_t;
  56 typedef __u32           xfs_nlink_t;
  57
  58 #define O_LARGEFILE     0
  59
  60 #define HAVE_FID        1
  61
  62 static __inline__ int xfsctl(const char *path, int fd, int cmd, void *p)
  63 {
  64         return ioctl(fd, cmd, p);
  65 }
  66
  67 static __inline__ int platform_test_xfs_fd(int fd)
  68 {
  69         struct statfs buf;
  70         if (fstatfs(fd, &buf) < 0)
  71                 return 0;
  72         return strncmp(buf.f_fstypename, "xfs", 4) == 0;
  73 }
  74
  75 static __inline__ int platform_test_xfs_path(const char *path)
  76 {
  77         struct statfs buf;
  78         if (statfs(path, &buf) < 0)
  79                 return 0;
  80         return strncmp(buf.f_fstypename, "xfs", 4) == 0;
  81 }
  82
  83 static __inline__ int platform_fstatfs(int fd, struct statfs *buf)
  84 {
  85         return fstatfs(fd, buf);
  86 }
  87
  88 static __inline__ void platform_getoptreset(void)
  89 {
  90         extern int optind;
  91         optind = 0;
  92 }
  93
  94 static __inline__ int platform_uuid_compare(uuid_t *uu1, uuid_t *uu2)
  95 {
  96         return uuid_compare(uu1, uu2, NULL);
  97 }
  98
  99 static __inline__ void platform_uuid_unparse(uuid_t *uu, char *buffer)
 100 {
 101         uint32_t status;
 102         char *s;
 103         uuid_to_string(uu, &s, &status);
 104         if (status == uuid_s_ok)
 105                 strcpy(buffer, s);
 106         else buffer[0] = '\0';
 107         free(s);
 108 }
 109
 110 static __inline__ int platform_uuid_parse(char *buffer, uuid_t *uu)
 111 {
 112         uint32_t status;
 113         uuid_from_string(buffer, uu, &status);
 114         return (status == uuid_s_ok);
 115 }
 116
 117 static __inline__ int platform_uuid_is_null(uuid_t *uu)
 118 {
 119         return uuid_is_nil(uu, NULL);
 120 }
 121
 122 static __inline__ void platform_uuid_generate(uuid_t *uu)
 123 {
 124         uuid_create(uu, NULL);
 125 }
 126
 127 static __inline__ void platform_uuid_clear(uuid_t *uu)
 128 {
 129         uuid_create_nil(uu, NULL);
 130 }
 131
 132 static __inline__ void platform_uuid_copy(uuid_t *dst, uuid_t *src)
 133 {
 134         memcpy(dst, src, sizeof(uuid_t));
 135 }
 136
 137 static __inline__ int
 138 platform_discard_blocks(int fd, uint64_t start, uint64_t len)
 139 {
 140         return 0;
 141 }
 142
 143 /**
 144  * Abstraction of mountpoints.
 145  */
 146 struct mntent_cursor {
 147         FILE *mtabp;
 148 };
 149
 150 static inline int platform_mntent_open(struct mntent_cursor * cursor, char *mtab)
 151 {
 152         cursor->mtabp = setmntent(mtab, "r");
 153         if (!cursor->mtabp) {
 154                 fprintf(stderr, "Error: cannot read %s\n", mtab);
 155                 return 1;
 156         }
 157         return 0;
 158 }
 159
 160 static inline  struct mntent * platform_mntent_next(struct mntent_cursor * cursor)
 161 {
 162         return getmntent(cursor->mtabp);
 163 }
 164
 165 static inline void platform_mntent_close(struct mntent_cursor * cursor)
 166 {
 167         endmntent(cursor->mtabp);
 168 }
 169
 170 /* check whether we have to define FS_IOC_FS[GS]ETXATTR ourselves */
 171 #ifndef HAVE_FSXATTR
 172 struct fsxattr {
 173         __u32           fsx_xflags;     /* xflags field value (get/set) */
 174         __u32           fsx_extsize;    /* extsize field value (get/set)*/
 175         __u32           fsx_nextents;   /* nextents field value (get)   */
 176         __u32           fsx_projid;     /* project identifier (get/set) */
 177         __u32           fsx_cowextsize; /* cow extsize field value (get/set) */
 178         unsigned char   fsx_pad[8];
 179 };
 180
 181 /*
 182  * Flags for the fsx_xflags field
 183  */
 184 #define FS_XFLAG_REALTIME       0x00000001      /* data in realtime volume */
 185 #define FS_XFLAG_PREALLOC       0x00000002      /* preallocated file extents */
 186 #define FS_XFLAG_IMMUTABLE      0x00000008      /* file cannot be modified */
 187 #define FS_XFLAG_APPEND         0x00000010      /* all writes append */
 188 #define FS_XFLAG_SYNC           0x00000020      /* all writes synchronous */
 189 #define FS_XFLAG_NOATIME        0x00000040      /* do not update access time */
 190 #define FS_XFLAG_NODUMP         0x00000080      /* do not include in backups */
 191 #define FS_XFLAG_RTINHERIT      0x00000100      /* create with rt bit set */
 192 #define FS_XFLAG_PROJINHERIT    0x00000200      /* create with parents projid */
 193 #define FS_XFLAG_NOSYMLINKS     0x00000400      /* disallow symlink creation */
 194 #define FS_XFLAG_EXTSIZE        0x00000800      /* extent size allocator hint */
 195 #define FS_XFLAG_EXTSZINHERIT   0x00001000      /* inherit inode extent size */
 196 #define FS_XFLAG_NODEFRAG       0x00002000      /* do not defragment */
 197 #define FS_XFLAG_FILESTREAM     0x00004000      /* use filestream allocator */
 198 #define FS_XFLAG_DAX            0x00008000      /* use DAX for IO */
 199 #define FS_XFLAG_HASATTR        0x80000000      /* no DIFLAG for this   */
 200
 201 #define FS_IOC_FSGETXATTR     _IOR ('X', 31, struct fsxattr)
 202 #define FS_IOC_FSSETXATTR     _IOW ('X', 32, struct fsxattr)
 203
 204 #endif
 205
 206 #ifndef FS_XFLAG_COWEXTSIZE
 207 #define FS_XFLAG_COWEXTSIZE     0x00010000      /* CoW extent size allocator hint */
 208 #endif
 209
 210 #endif  /* __XFS_FREEBSD_H__ */