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unix: use setattrlist for UtimesNano on Darwin for ns resolution

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Follow CL 74952 for x/sys/unix.

Update golang/go#22528

Change-Id: Id146da75b80a64cfa4eac28e9bb7b3befe944718
Reviewed-on: https://go-review.googlesource.com/75610
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser
2017-11-02 20:14:56 +00:00
committed by Brad Fitzpatrick
parent 95c6576299
commit feaf45c67f
11 changed files with 378 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/mkerrors.sh
+3
View File
@@ -38,6 +38,8 @@ includes_Darwin='
#define _DARWIN_C_SOURCE #define _DARWIN_C_SOURCE
#define KERNEL #define KERNEL
#define _DARWIN_USE_64_BIT_INODE #define _DARWIN_USE_64_BIT_INODE
#include <stdint.h>
#include <sys/attr.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/event.h> #include <sys/event.h>
#include <sys/ptrace.h> #include <sys/ptrace.h>
@@ -423,6 +425,7 @@ ccflags="$@"
$2 ~ /^GENL_/ || $2 ~ /^GENL_/ ||
$2 ~ /^UTIME_/ || $2 ~ /^UTIME_/ ||
$2 ~ /^XATTR_(CREATE|REPLACE)/ || $2 ~ /^XATTR_(CREATE|REPLACE)/ ||
$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
$2 ~ /^WDIOC_/ || $2 ~ /^WDIOC_/ ||
$2 !~ "WMESGLEN" && $2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ || $2 ~ /^W[A-Z0-9]+$/ ||
unix/syscall_bsd.go
+6 -1
View File
@@ -570,7 +570,12 @@ func UtimesNano(path string, ts []Timespec) error {
if len(ts) != 2 { if len(ts) != 2 {
return EINVAL return EINVAL
} }
err := utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) // Darwin setattrlist can set nanosecond timestamps
err := setattrlistTimes(path, ts)
if err != ENOSYS {
return err
}
err = utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
if err != ENOSYS { if err != ENOSYS {
return err return err
} }
unix/syscall_darwin.go
+29
View File
@@ -187,6 +187,35 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
return return
} }
func setattrlistTimes(path string, times []Timespec) error {
_p0, err := BytePtrFromString(path)
if err != nil {
return err
}
var attrList attrList
attrList.bitmapCount = ATTR_BIT_MAP_COUNT
attrList.CommonAttr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME
// order is mtime, atime: the opposite of Chtimes
attributes := [2]Timespec{times[1], times[0]}
const options = 0
_, _, e1 := Syscall6(
SYS_SETATTRLIST,
uintptr(unsafe.Pointer(_p0)),
uintptr(unsafe.Pointer(&attrList)),
uintptr(unsafe.Pointer(&attributes)),
uintptr(unsafe.Sizeof(attributes)),
uintptr(options),
0,
)
if e1 != 0 {
return e1
}
return nil
}
func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error { func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error {
// Darwin doesn't support SYS_UTIMENSAT // Darwin doesn't support SYS_UTIMENSAT
return ENOSYS return ENOSYS
unix/syscall_dragonfly.go
+5
View File
@@ -125,6 +125,11 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
return return
} }
func setattrlistTimes(path string, times []Timespec) error {
// used on Darwin for UtimesNano
return ENOSYS
}
/* /*
* Exposed directly * Exposed directly
*/ */
unix/syscall_freebsd.go
+5
View File
@@ -120,6 +120,11 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
return return
} }
func setattrlistTimes(path string, times []Timespec) error {
// used on Darwin for UtimesNano
return ENOSYS
}
// Derive extattr namespace and attribute name // Derive extattr namespace and attribute name
func xattrnamespace(fullattr string) (ns int, attr string, err error) { func xattrnamespace(fullattr string) (ns int, attr string, err error) {
unix/syscall_netbsd.go
+5
View File
@@ -124,6 +124,11 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
return -1, ENOSYS return -1, ENOSYS
} }
func setattrlistTimes(path string, times []Timespec) error {
// used on Darwin for UtimesNano
return ENOSYS
}
/* /*
* Exposed directly * Exposed directly
*/ */
unix/syscall_openbsd.go
+5
View File
@@ -102,6 +102,11 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
return return
} }
func setattrlistTimes(path string, times []Timespec) error {
// used on Darwin for UtimesNano
return ENOSYS
}
/* /*
* Exposed directly * Exposed directly
*/ */
unix/zerrors_darwin_386.go
+80
View File
@@ -49,6 +49,86 @@ const (
AF_UNSPEC = 0x0 AF_UNSPEC = 0x0
AF_UTUN = 0x26 AF_UTUN = 0x26
ALTWERASE = 0x200 ALTWERASE = 0x200
ATTR_BIT_MAP_COUNT = 0x5
ATTR_CMN_ACCESSMASK = 0x20000
ATTR_CMN_ACCTIME = 0x1000
ATTR_CMN_ADDEDTIME = 0x10000000
ATTR_CMN_BKUPTIME = 0x2000
ATTR_CMN_CHGTIME = 0x800
ATTR_CMN_CRTIME = 0x200
ATTR_CMN_DATA_PROTECT_FLAGS = 0x40000000
ATTR_CMN_DEVID = 0x2
ATTR_CMN_DOCUMENT_ID = 0x100000
ATTR_CMN_ERROR = 0x20000000
ATTR_CMN_EXTENDED_SECURITY = 0x400000
ATTR_CMN_FILEID = 0x2000000
ATTR_CMN_FLAGS = 0x40000
ATTR_CMN_FNDRINFO = 0x4000
ATTR_CMN_FSID = 0x4
ATTR_CMN_FULLPATH = 0x8000000
ATTR_CMN_GEN_COUNT = 0x80000
ATTR_CMN_GRPID = 0x10000
ATTR_CMN_GRPUUID = 0x1000000
ATTR_CMN_MODTIME = 0x400
ATTR_CMN_NAME = 0x1
ATTR_CMN_NAMEDATTRCOUNT = 0x80000
ATTR_CMN_NAMEDATTRLIST = 0x100000
ATTR_CMN_OBJID = 0x20
ATTR_CMN_OBJPERMANENTID = 0x40
ATTR_CMN_OBJTAG = 0x10
ATTR_CMN_OBJTYPE = 0x8
ATTR_CMN_OWNERID = 0x8000
ATTR_CMN_PARENTID = 0x4000000
ATTR_CMN_PAROBJID = 0x80
ATTR_CMN_RETURNED_ATTRS = 0x80000000
ATTR_CMN_SCRIPT = 0x100
ATTR_CMN_SETMASK = 0x41c7ff00
ATTR_CMN_USERACCESS = 0x200000
ATTR_CMN_UUID = 0x800000
ATTR_CMN_VALIDMASK = 0xffffffff
ATTR_CMN_VOLSETMASK = 0x6700
ATTR_FILE_ALLOCSIZE = 0x4
ATTR_FILE_CLUMPSIZE = 0x10
ATTR_FILE_DATAALLOCSIZE = 0x400
ATTR_FILE_DATAEXTENTS = 0x800
ATTR_FILE_DATALENGTH = 0x200
ATTR_FILE_DEVTYPE = 0x20
ATTR_FILE_FILETYPE = 0x40
ATTR_FILE_FORKCOUNT = 0x80
ATTR_FILE_FORKLIST = 0x100
ATTR_FILE_IOBLOCKSIZE = 0x8
ATTR_FILE_LINKCOUNT = 0x1
ATTR_FILE_RSRCALLOCSIZE = 0x2000
ATTR_FILE_RSRCEXTENTS = 0x4000
ATTR_FILE_RSRCLENGTH = 0x1000
ATTR_FILE_SETMASK = 0x20
ATTR_FILE_TOTALSIZE = 0x2
ATTR_FILE_VALIDMASK = 0x37ff
ATTR_VOL_ALLOCATIONCLUMP = 0x40
ATTR_VOL_ATTRIBUTES = 0x40000000
ATTR_VOL_CAPABILITIES = 0x20000
ATTR_VOL_DIRCOUNT = 0x400
ATTR_VOL_ENCODINGSUSED = 0x10000
ATTR_VOL_FILECOUNT = 0x200
ATTR_VOL_FSTYPE = 0x1
ATTR_VOL_INFO = 0x80000000
ATTR_VOL_IOBLOCKSIZE = 0x80
ATTR_VOL_MAXOBJCOUNT = 0x800
ATTR_VOL_MINALLOCATION = 0x20
ATTR_VOL_MOUNTEDDEVICE = 0x8000
ATTR_VOL_MOUNTFLAGS = 0x4000
ATTR_VOL_MOUNTPOINT = 0x1000
ATTR_VOL_NAME = 0x2000
ATTR_VOL_OBJCOUNT = 0x100
ATTR_VOL_QUOTA_SIZE = 0x10000000
ATTR_VOL_RESERVED_SIZE = 0x20000000
ATTR_VOL_SETMASK = 0x80002000
ATTR_VOL_SIGNATURE = 0x2
ATTR_VOL_SIZE = 0x4
ATTR_VOL_SPACEAVAIL = 0x10
ATTR_VOL_SPACEFREE = 0x8
ATTR_VOL_UUID = 0x40000
ATTR_VOL_VALIDMASK = 0xf007ffff
B0 = 0x0 B0 = 0x0
B110 = 0x6e B110 = 0x6e
B115200 = 0x1c200 B115200 = 0x1c200
unix/zerrors_darwin_amd64.go
+80
View File
@@ -49,6 +49,86 @@ const (
AF_UNSPEC = 0x0 AF_UNSPEC = 0x0
AF_UTUN = 0x26 AF_UTUN = 0x26
ALTWERASE = 0x200 ALTWERASE = 0x200
ATTR_BIT_MAP_COUNT = 0x5
ATTR_CMN_ACCESSMASK = 0x20000
ATTR_CMN_ACCTIME = 0x1000
ATTR_CMN_ADDEDTIME = 0x10000000
ATTR_CMN_BKUPTIME = 0x2000
ATTR_CMN_CHGTIME = 0x800
ATTR_CMN_CRTIME = 0x200
ATTR_CMN_DATA_PROTECT_FLAGS = 0x40000000
ATTR_CMN_DEVID = 0x2
ATTR_CMN_DOCUMENT_ID = 0x100000
ATTR_CMN_ERROR = 0x20000000
ATTR_CMN_EXTENDED_SECURITY = 0x400000
ATTR_CMN_FILEID = 0x2000000
ATTR_CMN_FLAGS = 0x40000
ATTR_CMN_FNDRINFO = 0x4000
ATTR_CMN_FSID = 0x4
ATTR_CMN_FULLPATH = 0x8000000
ATTR_CMN_GEN_COUNT = 0x80000
ATTR_CMN_GRPID = 0x10000
ATTR_CMN_GRPUUID = 0x1000000
ATTR_CMN_MODTIME = 0x400
ATTR_CMN_NAME = 0x1
ATTR_CMN_NAMEDATTRCOUNT = 0x80000
ATTR_CMN_NAMEDATTRLIST = 0x100000
ATTR_CMN_OBJID = 0x20
ATTR_CMN_OBJPERMANENTID = 0x40
ATTR_CMN_OBJTAG = 0x10
ATTR_CMN_OBJTYPE = 0x8
ATTR_CMN_OWNERID = 0x8000
ATTR_CMN_PARENTID = 0x4000000
ATTR_CMN_PAROBJID = 0x80
ATTR_CMN_RETURNED_ATTRS = 0x80000000
ATTR_CMN_SCRIPT = 0x100
ATTR_CMN_SETMASK = 0x41c7ff00
ATTR_CMN_USERACCESS = 0x200000
ATTR_CMN_UUID = 0x800000
ATTR_CMN_VALIDMASK = 0xffffffff
ATTR_CMN_VOLSETMASK = 0x6700
ATTR_FILE_ALLOCSIZE = 0x4
ATTR_FILE_CLUMPSIZE = 0x10
ATTR_FILE_DATAALLOCSIZE = 0x400
ATTR_FILE_DATAEXTENTS = 0x800
ATTR_FILE_DATALENGTH = 0x200
ATTR_FILE_DEVTYPE = 0x20
ATTR_FILE_FILETYPE = 0x40
ATTR_FILE_FORKCOUNT = 0x80
ATTR_FILE_FORKLIST = 0x100
ATTR_FILE_IOBLOCKSIZE = 0x8
ATTR_FILE_LINKCOUNT = 0x1
ATTR_FILE_RSRCALLOCSIZE = 0x2000
ATTR_FILE_RSRCEXTENTS = 0x4000
ATTR_FILE_RSRCLENGTH = 0x1000
ATTR_FILE_SETMASK = 0x20
ATTR_FILE_TOTALSIZE = 0x2
ATTR_FILE_VALIDMASK = 0x37ff
ATTR_VOL_ALLOCATIONCLUMP = 0x40
ATTR_VOL_ATTRIBUTES = 0x40000000
ATTR_VOL_CAPABILITIES = 0x20000
ATTR_VOL_DIRCOUNT = 0x400
ATTR_VOL_ENCODINGSUSED = 0x10000
ATTR_VOL_FILECOUNT = 0x200
ATTR_VOL_FSTYPE = 0x1
ATTR_VOL_INFO = 0x80000000
ATTR_VOL_IOBLOCKSIZE = 0x80
ATTR_VOL_MAXOBJCOUNT = 0x800
ATTR_VOL_MINALLOCATION = 0x20
ATTR_VOL_MOUNTEDDEVICE = 0x8000
ATTR_VOL_MOUNTFLAGS = 0x4000
ATTR_VOL_MOUNTPOINT = 0x1000
ATTR_VOL_NAME = 0x2000
ATTR_VOL_OBJCOUNT = 0x100
ATTR_VOL_QUOTA_SIZE = 0x10000000
ATTR_VOL_RESERVED_SIZE = 0x20000000
ATTR_VOL_SETMASK = 0x80002000
ATTR_VOL_SIGNATURE = 0x2
ATTR_VOL_SIZE = 0x4
ATTR_VOL_SPACEAVAIL = 0x10
ATTR_VOL_SPACEFREE = 0x8
ATTR_VOL_UUID = 0x40000
ATTR_VOL_VALIDMASK = 0xf007ffff
B0 = 0x0 B0 = 0x0
B110 = 0x6e B110 = 0x6e
B115200 = 0x1c200 B115200 = 0x1c200
unix/zerrors_darwin_arm.go
+80
View File
@@ -49,6 +49,86 @@ const (
AF_UNSPEC = 0x0 AF_UNSPEC = 0x0
AF_UTUN = 0x26 AF_UTUN = 0x26
ALTWERASE = 0x200 ALTWERASE = 0x200
ATTR_BIT_MAP_COUNT = 0x5
ATTR_CMN_ACCESSMASK = 0x20000
ATTR_CMN_ACCTIME = 0x1000
ATTR_CMN_ADDEDTIME = 0x10000000
ATTR_CMN_BKUPTIME = 0x2000
ATTR_CMN_CHGTIME = 0x800
ATTR_CMN_CRTIME = 0x200
ATTR_CMN_DATA_PROTECT_FLAGS = 0x40000000
ATTR_CMN_DEVID = 0x2
ATTR_CMN_DOCUMENT_ID = 0x100000
ATTR_CMN_ERROR = 0x20000000
ATTR_CMN_EXTENDED_SECURITY = 0x400000
ATTR_CMN_FILEID = 0x2000000
ATTR_CMN_FLAGS = 0x40000
ATTR_CMN_FNDRINFO = 0x4000
ATTR_CMN_FSID = 0x4
ATTR_CMN_FULLPATH = 0x8000000
ATTR_CMN_GEN_COUNT = 0x80000
ATTR_CMN_GRPID = 0x10000
ATTR_CMN_GRPUUID = 0x1000000
ATTR_CMN_MODTIME = 0x400
ATTR_CMN_NAME = 0x1
ATTR_CMN_NAMEDATTRCOUNT = 0x80000
ATTR_CMN_NAMEDATTRLIST = 0x100000
ATTR_CMN_OBJID = 0x20
ATTR_CMN_OBJPERMANENTID = 0x40
ATTR_CMN_OBJTAG = 0x10
ATTR_CMN_OBJTYPE = 0x8
ATTR_CMN_OWNERID = 0x8000
ATTR_CMN_PARENTID = 0x4000000
ATTR_CMN_PAROBJID = 0x80
ATTR_CMN_RETURNED_ATTRS = 0x80000000
ATTR_CMN_SCRIPT = 0x100
ATTR_CMN_SETMASK = 0x41c7ff00
ATTR_CMN_USERACCESS = 0x200000
ATTR_CMN_UUID = 0x800000
ATTR_CMN_VALIDMASK = 0xffffffff
ATTR_CMN_VOLSETMASK = 0x6700
ATTR_FILE_ALLOCSIZE = 0x4
ATTR_FILE_CLUMPSIZE = 0x10
ATTR_FILE_DATAALLOCSIZE = 0x400
ATTR_FILE_DATAEXTENTS = 0x800
ATTR_FILE_DATALENGTH = 0x200
ATTR_FILE_DEVTYPE = 0x20
ATTR_FILE_FILETYPE = 0x40
ATTR_FILE_FORKCOUNT = 0x80
ATTR_FILE_FORKLIST = 0x100
ATTR_FILE_IOBLOCKSIZE = 0x8
ATTR_FILE_LINKCOUNT = 0x1
ATTR_FILE_RSRCALLOCSIZE = 0x2000
ATTR_FILE_RSRCEXTENTS = 0x4000
ATTR_FILE_RSRCLENGTH = 0x1000
ATTR_FILE_SETMASK = 0x20
ATTR_FILE_TOTALSIZE = 0x2
ATTR_FILE_VALIDMASK = 0x37ff
ATTR_VOL_ALLOCATIONCLUMP = 0x40
ATTR_VOL_ATTRIBUTES = 0x40000000
ATTR_VOL_CAPABILITIES = 0x20000
ATTR_VOL_DIRCOUNT = 0x400
ATTR_VOL_ENCODINGSUSED = 0x10000
ATTR_VOL_FILECOUNT = 0x200
ATTR_VOL_FSTYPE = 0x1
ATTR_VOL_INFO = 0x80000000
ATTR_VOL_IOBLOCKSIZE = 0x80
ATTR_VOL_MAXOBJCOUNT = 0x800
ATTR_VOL_MINALLOCATION = 0x20
ATTR_VOL_MOUNTEDDEVICE = 0x8000
ATTR_VOL_MOUNTFLAGS = 0x4000
ATTR_VOL_MOUNTPOINT = 0x1000
ATTR_VOL_NAME = 0x2000
ATTR_VOL_OBJCOUNT = 0x100
ATTR_VOL_QUOTA_SIZE = 0x10000000
ATTR_VOL_RESERVED_SIZE = 0x20000000
ATTR_VOL_SETMASK = 0x80002000
ATTR_VOL_SIGNATURE = 0x2
ATTR_VOL_SIZE = 0x4
ATTR_VOL_SPACEAVAIL = 0x10
ATTR_VOL_SPACEFREE = 0x8
ATTR_VOL_UUID = 0x40000
ATTR_VOL_VALIDMASK = 0xf007ffff
B0 = 0x0 B0 = 0x0
B110 = 0x6e B110 = 0x6e
B115200 = 0x1c200 B115200 = 0x1c200
unix/zerrors_darwin_arm64.go
+80
View File
@@ -49,6 +49,86 @@ const (
AF_UNSPEC = 0x0 AF_UNSPEC = 0x0
AF_UTUN = 0x26 AF_UTUN = 0x26
ALTWERASE = 0x200 ALTWERASE = 0x200
ATTR_BIT_MAP_COUNT = 0x5
ATTR_CMN_ACCESSMASK = 0x20000
ATTR_CMN_ACCTIME = 0x1000
ATTR_CMN_ADDEDTIME = 0x10000000
ATTR_CMN_BKUPTIME = 0x2000
ATTR_CMN_CHGTIME = 0x800
ATTR_CMN_CRTIME = 0x200
ATTR_CMN_DATA_PROTECT_FLAGS = 0x40000000
ATTR_CMN_DEVID = 0x2
ATTR_CMN_DOCUMENT_ID = 0x100000
ATTR_CMN_ERROR = 0x20000000
ATTR_CMN_EXTENDED_SECURITY = 0x400000
ATTR_CMN_FILEID = 0x2000000
ATTR_CMN_FLAGS = 0x40000
ATTR_CMN_FNDRINFO = 0x4000
ATTR_CMN_FSID = 0x4
ATTR_CMN_FULLPATH = 0x8000000
ATTR_CMN_GEN_COUNT = 0x80000
ATTR_CMN_GRPID = 0x10000
ATTR_CMN_GRPUUID = 0x1000000
ATTR_CMN_MODTIME = 0x400
ATTR_CMN_NAME = 0x1
ATTR_CMN_NAMEDATTRCOUNT = 0x80000
ATTR_CMN_NAMEDATTRLIST = 0x100000
ATTR_CMN_OBJID = 0x20
ATTR_CMN_OBJPERMANENTID = 0x40
ATTR_CMN_OBJTAG = 0x10
ATTR_CMN_OBJTYPE = 0x8
ATTR_CMN_OWNERID = 0x8000
ATTR_CMN_PARENTID = 0x4000000
ATTR_CMN_PAROBJID = 0x80
ATTR_CMN_RETURNED_ATTRS = 0x80000000
ATTR_CMN_SCRIPT = 0x100
ATTR_CMN_SETMASK = 0x41c7ff00
ATTR_CMN_USERACCESS = 0x200000
ATTR_CMN_UUID = 0x800000
ATTR_CMN_VALIDMASK = 0xffffffff
ATTR_CMN_VOLSETMASK = 0x6700
ATTR_FILE_ALLOCSIZE = 0x4
ATTR_FILE_CLUMPSIZE = 0x10
ATTR_FILE_DATAALLOCSIZE = 0x400
ATTR_FILE_DATAEXTENTS = 0x800
ATTR_FILE_DATALENGTH = 0x200
ATTR_FILE_DEVTYPE = 0x20
ATTR_FILE_FILETYPE = 0x40
ATTR_FILE_FORKCOUNT = 0x80
ATTR_FILE_FORKLIST = 0x100
ATTR_FILE_IOBLOCKSIZE = 0x8
ATTR_FILE_LINKCOUNT = 0x1
ATTR_FILE_RSRCALLOCSIZE = 0x2000
ATTR_FILE_RSRCEXTENTS = 0x4000
ATTR_FILE_RSRCLENGTH = 0x1000
ATTR_FILE_SETMASK = 0x20
ATTR_FILE_TOTALSIZE = 0x2
ATTR_FILE_VALIDMASK = 0x37ff
ATTR_VOL_ALLOCATIONCLUMP = 0x40
ATTR_VOL_ATTRIBUTES = 0x40000000
ATTR_VOL_CAPABILITIES = 0x20000
ATTR_VOL_DIRCOUNT = 0x400
ATTR_VOL_ENCODINGSUSED = 0x10000
ATTR_VOL_FILECOUNT = 0x200
ATTR_VOL_FSTYPE = 0x1
ATTR_VOL_INFO = 0x80000000
ATTR_VOL_IOBLOCKSIZE = 0x80
ATTR_VOL_MAXOBJCOUNT = 0x800
ATTR_VOL_MINALLOCATION = 0x20
ATTR_VOL_MOUNTEDDEVICE = 0x8000
ATTR_VOL_MOUNTFLAGS = 0x4000
ATTR_VOL_MOUNTPOINT = 0x1000
ATTR_VOL_NAME = 0x2000
ATTR_VOL_OBJCOUNT = 0x100
ATTR_VOL_QUOTA_SIZE = 0x10000000
ATTR_VOL_RESERVED_SIZE = 0x20000000
ATTR_VOL_SETMASK = 0x80002000
ATTR_VOL_SIGNATURE = 0x2
ATTR_VOL_SIZE = 0x4
ATTR_VOL_SPACEAVAIL = 0x10
ATTR_VOL_SPACEFREE = 0x8
ATTR_VOL_UUID = 0x40000
ATTR_VOL_VALIDMASK = 0xf007ffff
B0 = 0x0 B0 = 0x0
B110 = 0x6e B110 = 0x6e
B115200 = 0x1c200 B115200 = 0x1c200