775 lines
18 KiB
Go
775 lines
18 KiB
Go
|
// See the file LICENSE for copyright and licensing information.
|
||
|
|
|
||
|
|
// Derived from FUSE's fuse_kernel.h, which carries this notice:
|
||
|
|
/*
|
||
|
|
This file defines the kernel interface of FUSE
|
||
|
|
Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
|
||
|
|
|
||
|
|
|
||
|
|
This -- and only this -- header file may also be distributed under
|
||
|
|
the terms of the BSD Licence as follows:
|
||
|
|
|
||
|
|
Copyright (C) 2001-2007 Miklos Szeredi. All rights reserved.
|
||
|
|
|
||
|
|
Redistribution and use in source and binary forms, with or without
|
||
|
|
modification, are permitted provided that the following conditions
|
||
|
|
are met:
|
||
|
|
1. Redistributions of source code must retain the above copyright
|
||
|
|
notice, this list of conditions and the following disclaimer.
|
||
|
|
2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
notice, this list of conditions and the following disclaimer in the
|
||
|
|
documentation and/or other materials provided with the distribution.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package fuse
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"syscall"
|
||
|
|
"unsafe"
|
||
|
|
)
|
||
|
|
|
||
|
|
// The FUSE version implemented by the package.
|
||
|
|
const (
|
||
|
|
protoVersionMinMajor = 7
|
||
|
|
protoVersionMinMinor = 8
|
||
|
|
protoVersionMaxMajor = 7
|
||
|
|
protoVersionMaxMinor = 12
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
rootID = 1
|
||
|
|
)
|
||
|
|
|
||
|
|
type kstatfs struct {
|
||
|
|
Blocks uint64
|
||
|
|
Bfree uint64
|
||
|
|
Bavail uint64
|
||
|
|
Files uint64
|
||
|
|
Ffree uint64
|
||
|
|
Bsize uint32
|
||
|
|
Namelen uint32
|
||
|
|
Frsize uint32
|
||
|
|
_ uint32
|
||
|
|
Spare [6]uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type fileLock struct {
|
||
|
|
Start uint64
|
||
|
|
End uint64
|
||
|
|
Type uint32
|
||
|
|
Pid uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetattrFlags are bit flags that can be seen in GetattrRequest.
|
||
|
|
type GetattrFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
// Indicates the handle is valid.
|
||
|
|
GetattrFh GetattrFlags = 1 << 0
|
||
|
|
)
|
||
|
|
|
||
|
|
var getattrFlagsNames = []flagName{
|
||
|
|
{uint32(GetattrFh), "GetattrFh"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func (fl GetattrFlags) String() string {
|
||
|
|
return flagString(uint32(fl), getattrFlagsNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
// The SetattrValid are bit flags describing which fields in the SetattrRequest
|
||
|
|
// are included in the change.
|
||
|
|
type SetattrValid uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
SetattrMode SetattrValid = 1 << 0
|
||
|
|
SetattrUid SetattrValid = 1 << 1
|
||
|
|
SetattrGid SetattrValid = 1 << 2
|
||
|
|
SetattrSize SetattrValid = 1 << 3
|
||
|
|
SetattrAtime SetattrValid = 1 << 4
|
||
|
|
SetattrMtime SetattrValid = 1 << 5
|
||
|
|
SetattrHandle SetattrValid = 1 << 6
|
||
|
|
|
||
|
|
// Linux only(?)
|
||
|
|
SetattrAtimeNow SetattrValid = 1 << 7
|
||
|
|
SetattrMtimeNow SetattrValid = 1 << 8
|
||
|
|
SetattrLockOwner SetattrValid = 1 << 9 // http://www.mail-archive.com/git-commits-head@vger.kernel.org/msg27852.html
|
||
|
|
|
||
|
|
// OS X only
|
||
|
|
SetattrCrtime SetattrValid = 1 << 28
|
||
|
|
SetattrChgtime SetattrValid = 1 << 29
|
||
|
|
SetattrBkuptime SetattrValid = 1 << 30
|
||
|
|
SetattrFlags SetattrValid = 1 << 31
|
||
|
|
)
|
||
|
|
|
||
|
|
func (fl SetattrValid) Mode() bool { return fl&SetattrMode != 0 }
|
||
|
|
func (fl SetattrValid) Uid() bool { return fl&SetattrUid != 0 }
|
||
|
|
func (fl SetattrValid) Gid() bool { return fl&SetattrGid != 0 }
|
||
|
|
func (fl SetattrValid) Size() bool { return fl&SetattrSize != 0 }
|
||
|
|
func (fl SetattrValid) Atime() bool { return fl&SetattrAtime != 0 }
|
||
|
|
func (fl SetattrValid) Mtime() bool { return fl&SetattrMtime != 0 }
|
||
|
|
func (fl SetattrValid) Handle() bool { return fl&SetattrHandle != 0 }
|
||
|
|
func (fl SetattrValid) AtimeNow() bool { return fl&SetattrAtimeNow != 0 }
|
||
|
|
func (fl SetattrValid) MtimeNow() bool { return fl&SetattrMtimeNow != 0 }
|
||
|
|
func (fl SetattrValid) LockOwner() bool { return fl&SetattrLockOwner != 0 }
|
||
|
|
func (fl SetattrValid) Crtime() bool { return fl&SetattrCrtime != 0 }
|
||
|
|
func (fl SetattrValid) Chgtime() bool { return fl&SetattrChgtime != 0 }
|
||
|
|
func (fl SetattrValid) Bkuptime() bool { return fl&SetattrBkuptime != 0 }
|
||
|
|
func (fl SetattrValid) Flags() bool { return fl&SetattrFlags != 0 }
|
||
|
|
|
||
|
|
func (fl SetattrValid) String() string {
|
||
|
|
return flagString(uint32(fl), setattrValidNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
var setattrValidNames = []flagName{
|
||
|
|
{uint32(SetattrMode), "SetattrMode"},
|
||
|
|
{uint32(SetattrUid), "SetattrUid"},
|
||
|
|
{uint32(SetattrGid), "SetattrGid"},
|
||
|
|
{uint32(SetattrSize), "SetattrSize"},
|
||
|
|
{uint32(SetattrAtime), "SetattrAtime"},
|
||
|
|
{uint32(SetattrMtime), "SetattrMtime"},
|
||
|
|
{uint32(SetattrHandle), "SetattrHandle"},
|
||
|
|
{uint32(SetattrAtimeNow), "SetattrAtimeNow"},
|
||
|
|
{uint32(SetattrMtimeNow), "SetattrMtimeNow"},
|
||
|
|
{uint32(SetattrLockOwner), "SetattrLockOwner"},
|
||
|
|
{uint32(SetattrCrtime), "SetattrCrtime"},
|
||
|
|
{uint32(SetattrChgtime), "SetattrChgtime"},
|
||
|
|
{uint32(SetattrBkuptime), "SetattrBkuptime"},
|
||
|
|
{uint32(SetattrFlags), "SetattrFlags"},
|
||
|
|
}
|
||
|
|
|
||
|
|
// Flags that can be seen in OpenRequest.Flags.
|
||
|
|
const (
|
||
|
|
// Access modes. These are not 1-bit flags, but alternatives where
|
||
|
|
// only one can be chosen. See the IsReadOnly etc convenience
|
||
|
|
// methods.
|
||
|
|
OpenReadOnly OpenFlags = syscall.O_RDONLY
|
||
|
|
OpenWriteOnly OpenFlags = syscall.O_WRONLY
|
||
|
|
OpenReadWrite OpenFlags = syscall.O_RDWR
|
||
|
|
|
||
|
|
// File was opened in append-only mode, all writes will go to end
|
||
|
|
// of file. OS X does not provide this information.
|
||
|
|
OpenAppend OpenFlags = syscall.O_APPEND
|
||
|
|
OpenCreate OpenFlags = syscall.O_CREAT
|
||
|
|
OpenDirectory OpenFlags = syscall.O_DIRECTORY
|
||
|
|
OpenExclusive OpenFlags = syscall.O_EXCL
|
||
|
|
OpenNonblock OpenFlags = syscall.O_NONBLOCK
|
||
|
|
OpenSync OpenFlags = syscall.O_SYNC
|
||
|
|
OpenTruncate OpenFlags = syscall.O_TRUNC
|
||
|
|
)
|
||
|
|
|
||
|
|
// OpenAccessModeMask is a bitmask that separates the access mode
|
||
|
|
// from the other flags in OpenFlags.
|
||
|
|
const OpenAccessModeMask OpenFlags = syscall.O_ACCMODE
|
||
|
|
|
||
|
|
// OpenFlags are the O_FOO flags passed to open/create/etc calls. For
|
||
|
|
// example, os.O_WRONLY | os.O_APPEND.
|
||
|
|
type OpenFlags uint32
|
||
|
|
|
||
|
|
func (fl OpenFlags) String() string {
|
||
|
|
// O_RDONLY, O_RWONLY, O_RDWR are not flags
|
||
|
|
s := accModeName(fl & OpenAccessModeMask)
|
||
|
|
flags := uint32(fl &^ OpenAccessModeMask)
|
||
|
|
if flags != 0 {
|
||
|
|
s = s + "+" + flagString(flags, openFlagNames)
|
||
|
|
}
|
||
|
|
return s
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return true if OpenReadOnly is set.
|
||
|
|
func (fl OpenFlags) IsReadOnly() bool {
|
||
|
|
return fl&OpenAccessModeMask == OpenReadOnly
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return true if OpenWriteOnly is set.
|
||
|
|
func (fl OpenFlags) IsWriteOnly() bool {
|
||
|
|
return fl&OpenAccessModeMask == OpenWriteOnly
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return true if OpenReadWrite is set.
|
||
|
|
func (fl OpenFlags) IsReadWrite() bool {
|
||
|
|
return fl&OpenAccessModeMask == OpenReadWrite
|
||
|
|
}
|
||
|
|
|
||
|
|
func accModeName(flags OpenFlags) string {
|
||
|
|
switch flags {
|
||
|
|
case OpenReadOnly:
|
||
|
|
return "OpenReadOnly"
|
||
|
|
case OpenWriteOnly:
|
||
|
|
return "OpenWriteOnly"
|
||
|
|
case OpenReadWrite:
|
||
|
|
return "OpenReadWrite"
|
||
|
|
default:
|
||
|
|
return ""
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var openFlagNames = []flagName{
|
||
|
|
{uint32(OpenAppend), "OpenAppend"},
|
||
|
|
{uint32(OpenCreate), "OpenCreate"},
|
||
|
|
{uint32(OpenDirectory), "OpenDirectory"},
|
||
|
|
{uint32(OpenExclusive), "OpenExclusive"},
|
||
|
|
{uint32(OpenNonblock), "OpenNonblock"},
|
||
|
|
{uint32(OpenSync), "OpenSync"},
|
||
|
|
{uint32(OpenTruncate), "OpenTruncate"},
|
||
|
|
}
|
||
|
|
|
||
|
|
// The OpenResponseFlags are returned in the OpenResponse.
|
||
|
|
type OpenResponseFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
OpenDirectIO OpenResponseFlags = 1 << 0 // bypass page cache for this open file
|
||
|
|
OpenKeepCache OpenResponseFlags = 1 << 1 // don't invalidate the data cache on open
|
||
|
|
OpenNonSeekable OpenResponseFlags = 1 << 2 // mark the file as non-seekable (not supported on OS X)
|
||
|
|
|
||
|
|
OpenPurgeAttr OpenResponseFlags = 1 << 30 // OS X
|
||
|
|
OpenPurgeUBC OpenResponseFlags = 1 << 31 // OS X
|
||
|
|
)
|
||
|
|
|
||
|
|
func (fl OpenResponseFlags) String() string {
|
||
|
|
return flagString(uint32(fl), openResponseFlagNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
var openResponseFlagNames = []flagName{
|
||
|
|
{uint32(OpenDirectIO), "OpenDirectIO"},
|
||
|
|
{uint32(OpenKeepCache), "OpenKeepCache"},
|
||
|
|
{uint32(OpenNonSeekable), "OpenNonSeekable"},
|
||
|
|
{uint32(OpenPurgeAttr), "OpenPurgeAttr"},
|
||
|
|
{uint32(OpenPurgeUBC), "OpenPurgeUBC"},
|
||
|
|
}
|
||
|
|
|
||
|
|
// The InitFlags are used in the Init exchange.
|
||
|
|
type InitFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
InitAsyncRead InitFlags = 1 << 0
|
||
|
|
InitPosixLocks InitFlags = 1 << 1
|
||
|
|
InitFileOps InitFlags = 1 << 2
|
||
|
|
InitAtomicTrunc InitFlags = 1 << 3
|
||
|
|
InitExportSupport InitFlags = 1 << 4
|
||
|
|
InitBigWrites InitFlags = 1 << 5
|
||
|
|
// Do not mask file access modes with umask. Not supported on OS X.
|
||
|
|
InitDontMask InitFlags = 1 << 6
|
||
|
|
InitSpliceWrite InitFlags = 1 << 7
|
||
|
|
InitSpliceMove InitFlags = 1 << 8
|
||
|
|
InitSpliceRead InitFlags = 1 << 9
|
||
|
|
InitFlockLocks InitFlags = 1 << 10
|
||
|
|
InitHasIoctlDir InitFlags = 1 << 11
|
||
|
|
InitAutoInvalData InitFlags = 1 << 12
|
||
|
|
InitDoReaddirplus InitFlags = 1 << 13
|
||
|
|
InitReaddirplusAuto InitFlags = 1 << 14
|
||
|
|
InitAsyncDIO InitFlags = 1 << 15
|
||
|
|
InitWritebackCache InitFlags = 1 << 16
|
||
|
|
InitNoOpenSupport InitFlags = 1 << 17
|
||
|
|
|
||
|
|
InitCaseSensitive InitFlags = 1 << 29 // OS X only
|
||
|
|
InitVolRename InitFlags = 1 << 30 // OS X only
|
||
|
|
InitXtimes InitFlags = 1 << 31 // OS X only
|
||
|
|
)
|
||
|
|
|
||
|
|
type flagName struct {
|
||
|
|
bit uint32
|
||
|
|
name string
|
||
|
|
}
|
||
|
|
|
||
|
|
var initFlagNames = []flagName{
|
||
|
|
{uint32(InitAsyncRead), "InitAsyncRead"},
|
||
|
|
{uint32(InitPosixLocks), "InitPosixLocks"},
|
||
|
|
{uint32(InitFileOps), "InitFileOps"},
|
||
|
|
{uint32(InitAtomicTrunc), "InitAtomicTrunc"},
|
||
|
|
{uint32(InitExportSupport), "InitExportSupport"},
|
||
|
|
{uint32(InitBigWrites), "InitBigWrites"},
|
||
|
|
{uint32(InitDontMask), "InitDontMask"},
|
||
|
|
{uint32(InitSpliceWrite), "InitSpliceWrite"},
|
||
|
|
{uint32(InitSpliceMove), "InitSpliceMove"},
|
||
|
|
{uint32(InitSpliceRead), "InitSpliceRead"},
|
||
|
|
{uint32(InitFlockLocks), "InitFlockLocks"},
|
||
|
|
{uint32(InitHasIoctlDir), "InitHasIoctlDir"},
|
||
|
|
{uint32(InitAutoInvalData), "InitAutoInvalData"},
|
||
|
|
{uint32(InitDoReaddirplus), "InitDoReaddirplus"},
|
||
|
|
{uint32(InitReaddirplusAuto), "InitReaddirplusAuto"},
|
||
|
|
{uint32(InitAsyncDIO), "InitAsyncDIO"},
|
||
|
|
{uint32(InitWritebackCache), "InitWritebackCache"},
|
||
|
|
{uint32(InitNoOpenSupport), "InitNoOpenSupport"},
|
||
|
|
|
||
|
|
{uint32(InitCaseSensitive), "InitCaseSensitive"},
|
||
|
|
{uint32(InitVolRename), "InitVolRename"},
|
||
|
|
{uint32(InitXtimes), "InitXtimes"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func (fl InitFlags) String() string {
|
||
|
|
return flagString(uint32(fl), initFlagNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
func flagString(f uint32, names []flagName) string {
|
||
|
|
var s string
|
||
|
|
|
||
|
|
if f == 0 {
|
||
|
|
return "0"
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, n := range names {
|
||
|
|
if f&n.bit != 0 {
|
||
|
|
s += "+" + n.name
|
||
|
|
f &^= n.bit
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if f != 0 {
|
||
|
|
s += fmt.Sprintf("%+#x", f)
|
||
|
|
}
|
||
|
|
return s[1:]
|
||
|
|
}
|
||
|
|
|
||
|
|
// The ReleaseFlags are used in the Release exchange.
|
||
|
|
type ReleaseFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
ReleaseFlush ReleaseFlags = 1 << 0
|
||
|
|
)
|
||
|
|
|
||
|
|
func (fl ReleaseFlags) String() string {
|
||
|
|
return flagString(uint32(fl), releaseFlagNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
var releaseFlagNames = []flagName{
|
||
|
|
{uint32(ReleaseFlush), "ReleaseFlush"},
|
||
|
|
}
|
||
|
|
|
||
|
|
// Opcodes
|
||
|
|
const (
|
||
|
|
opLookup = 1
|
||
|
|
opForget = 2 // no reply
|
||
|
|
opGetattr = 3
|
||
|
|
opSetattr = 4
|
||
|
|
opReadlink = 5
|
||
|
|
opSymlink = 6
|
||
|
|
opMknod = 8
|
||
|
|
opMkdir = 9
|
||
|
|
opUnlink = 10
|
||
|
|
opRmdir = 11
|
||
|
|
opRename = 12
|
||
|
|
opLink = 13
|
||
|
|
opOpen = 14
|
||
|
|
opRead = 15
|
||
|
|
opWrite = 16
|
||
|
|
opStatfs = 17
|
||
|
|
opRelease = 18
|
||
|
|
opFsync = 20
|
||
|
|
opSetxattr = 21
|
||
|
|
opGetxattr = 22
|
||
|
|
opListxattr = 23
|
||
|
|
opRemovexattr = 24
|
||
|
|
opFlush = 25
|
||
|
|
opInit = 26
|
||
|
|
opOpendir = 27
|
||
|
|
opReaddir = 28
|
||
|
|
opReleasedir = 29
|
||
|
|
opFsyncdir = 30
|
||
|
|
opGetlk = 31
|
||
|
|
opSetlk = 32
|
||
|
|
opSetlkw = 33
|
||
|
|
opAccess = 34
|
||
|
|
opCreate = 35
|
||
|
|
opInterrupt = 36
|
||
|
|
opBmap = 37
|
||
|
|
opDestroy = 38
|
||
|
|
opIoctl = 39 // Linux?
|
||
|
|
opPoll = 40 // Linux?
|
||
|
|
|
||
|
|
// OS X
|
||
|
|
opSetvolname = 61
|
||
|
|
opGetxtimes = 62
|
||
|
|
opExchange = 63
|
||
|
|
)
|
||
|
|
|
||
|
|
type entryOut struct {
|
||
|
|
Nodeid uint64 // Inode ID
|
||
|
|
Generation uint64 // Inode generation
|
||
|
|
EntryValid uint64 // Cache timeout for the name
|
||
|
|
AttrValid uint64 // Cache timeout for the attributes
|
||
|
|
EntryValidNsec uint32
|
||
|
|
AttrValidNsec uint32
|
||
|
|
Attr attr
|
||
|
|
}
|
||
|
|
|
||
|
|
func entryOutSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 9}):
|
||
|
|
return unsafe.Offsetof(entryOut{}.Attr) + unsafe.Offsetof(entryOut{}.Attr.Blksize)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(entryOut{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type forgetIn struct {
|
||
|
|
Nlookup uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type getattrIn struct {
|
||
|
|
GetattrFlags uint32
|
||
|
|
_ uint32
|
||
|
|
Fh uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type attrOut struct {
|
||
|
|
AttrValid uint64 // Cache timeout for the attributes
|
||
|
|
AttrValidNsec uint32
|
||
|
|
_ uint32
|
||
|
|
Attr attr
|
||
|
|
}
|
||
|
|
|
||
|
|
func attrOutSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 9}):
|
||
|
|
return unsafe.Offsetof(attrOut{}.Attr) + unsafe.Offsetof(attrOut{}.Attr.Blksize)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(attrOut{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// OS X
|
||
|
|
type getxtimesOut struct {
|
||
|
|
Bkuptime uint64
|
||
|
|
Crtime uint64
|
||
|
|
BkuptimeNsec uint32
|
||
|
|
CrtimeNsec uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type mknodIn struct {
|
||
|
|
Mode uint32
|
||
|
|
Rdev uint32
|
||
|
|
Umask uint32
|
||
|
|
_ uint32
|
||
|
|
// "filename\x00" follows.
|
||
|
|
}
|
||
|
|
|
||
|
|
func mknodInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 12}):
|
||
|
|
return unsafe.Offsetof(mknodIn{}.Umask)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(mknodIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type mkdirIn struct {
|
||
|
|
Mode uint32
|
||
|
|
Umask uint32
|
||
|
|
// filename follows
|
||
|
|
}
|
||
|
|
|
||
|
|
func mkdirInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 12}):
|
||
|
|
return unsafe.Offsetof(mkdirIn{}.Umask) + 4
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(mkdirIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type renameIn struct {
|
||
|
|
Newdir uint64
|
||
|
|
// "oldname\x00newname\x00" follows
|
||
|
|
}
|
||
|
|
|
||
|
|
// OS X
|
||
|
|
type exchangeIn struct {
|
||
|
|
Olddir uint64
|
||
|
|
Newdir uint64
|
||
|
|
Options uint64
|
||
|
|
// "oldname\x00newname\x00" follows
|
||
|
|
}
|
||
|
|
|
||
|
|
type linkIn struct {
|
||
|
|
Oldnodeid uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type setattrInCommon struct {
|
||
|
|
Valid uint32
|
||
|
|
_ uint32
|
||
|
|
Fh uint64
|
||
|
|
Size uint64
|
||
|
|
LockOwner uint64 // unused on OS X?
|
||
|
|
Atime uint64
|
||
|
|
Mtime uint64
|
||
|
|
Unused2 uint64
|
||
|
|
AtimeNsec uint32
|
||
|
|
MtimeNsec uint32
|
||
|
|
Unused3 uint32
|
||
|
|
Mode uint32
|
||
|
|
Unused4 uint32
|
||
|
|
Uid uint32
|
||
|
|
Gid uint32
|
||
|
|
Unused5 uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type openIn struct {
|
||
|
|
Flags uint32
|
||
|
|
Unused uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type openOut struct {
|
||
|
|
Fh uint64
|
||
|
|
OpenFlags uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type createIn struct {
|
||
|
|
Flags uint32
|
||
|
|
Mode uint32
|
||
|
|
Umask uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func createInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 12}):
|
||
|
|
return unsafe.Offsetof(createIn{}.Umask)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(createIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type releaseIn struct {
|
||
|
|
Fh uint64
|
||
|
|
Flags uint32
|
||
|
|
ReleaseFlags uint32
|
||
|
|
LockOwner uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type flushIn struct {
|
||
|
|
Fh uint64
|
||
|
|
FlushFlags uint32
|
||
|
|
_ uint32
|
||
|
|
LockOwner uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type readIn struct {
|
||
|
|
Fh uint64
|
||
|
|
Offset uint64
|
||
|
|
Size uint32
|
||
|
|
ReadFlags uint32
|
||
|
|
LockOwner uint64
|
||
|
|
Flags uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func readInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 9}):
|
||
|
|
return unsafe.Offsetof(readIn{}.ReadFlags) + 4
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(readIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The ReadFlags are passed in ReadRequest.
|
||
|
|
type ReadFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
// LockOwner field is valid.
|
||
|
|
ReadLockOwner ReadFlags = 1 << 1
|
||
|
|
)
|
||
|
|
|
||
|
|
var readFlagNames = []flagName{
|
||
|
|
{uint32(ReadLockOwner), "ReadLockOwner"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func (fl ReadFlags) String() string {
|
||
|
|
return flagString(uint32(fl), readFlagNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
type writeIn struct {
|
||
|
|
Fh uint64
|
||
|
|
Offset uint64
|
||
|
|
Size uint32
|
||
|
|
WriteFlags uint32
|
||
|
|
LockOwner uint64
|
||
|
|
Flags uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func writeInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 9}):
|
||
|
|
return unsafe.Offsetof(writeIn{}.LockOwner)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(writeIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type writeOut struct {
|
||
|
|
Size uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
// The WriteFlags are passed in WriteRequest.
|
||
|
|
type WriteFlags uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
WriteCache WriteFlags = 1 << 0
|
||
|
|
// LockOwner field is valid.
|
||
|
|
WriteLockOwner WriteFlags = 1 << 1
|
||
|
|
)
|
||
|
|
|
||
|
|
var writeFlagNames = []flagName{
|
||
|
|
{uint32(WriteCache), "WriteCache"},
|
||
|
|
{uint32(WriteLockOwner), "WriteLockOwner"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func (fl WriteFlags) String() string {
|
||
|
|
return flagString(uint32(fl), writeFlagNames)
|
||
|
|
}
|
||
|
|
|
||
|
|
const compatStatfsSize = 48
|
||
|
|
|
||
|
|
type statfsOut struct {
|
||
|
|
St kstatfs
|
||
|
|
}
|
||
|
|
|
||
|
|
type fsyncIn struct {
|
||
|
|
Fh uint64
|
||
|
|
FsyncFlags uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type setxattrInCommon struct {
|
||
|
|
Size uint32
|
||
|
|
Flags uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func (setxattrInCommon) position() uint32 {
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
type getxattrInCommon struct {
|
||
|
|
Size uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func (getxattrInCommon) position() uint32 {
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
type getxattrOut struct {
|
||
|
|
Size uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type lkIn struct {
|
||
|
|
Fh uint64
|
||
|
|
Owner uint64
|
||
|
|
Lk fileLock
|
||
|
|
LkFlags uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
func lkInSize(p Protocol) uintptr {
|
||
|
|
switch {
|
||
|
|
case p.LT(Protocol{7, 9}):
|
||
|
|
return unsafe.Offsetof(lkIn{}.LkFlags)
|
||
|
|
default:
|
||
|
|
return unsafe.Sizeof(lkIn{})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type lkOut struct {
|
||
|
|
Lk fileLock
|
||
|
|
}
|
||
|
|
|
||
|
|
type accessIn struct {
|
||
|
|
Mask uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type initIn struct {
|
||
|
|
Major uint32
|
||
|
|
Minor uint32
|
||
|
|
MaxReadahead uint32
|
||
|
|
Flags uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
const initInSize = int(unsafe.Sizeof(initIn{}))
|
||
|
|
|
||
|
|
type initOut struct {
|
||
|
|
Major uint32
|
||
|
|
Minor uint32
|
||
|
|
MaxReadahead uint32
|
||
|
|
Flags uint32
|
||
|
|
Unused uint32
|
||
|
|
MaxWrite uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type interruptIn struct {
|
||
|
|
Unique uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type bmapIn struct {
|
||
|
|
Block uint64
|
||
|
|
BlockSize uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
type bmapOut struct {
|
||
|
|
Block uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type inHeader struct {
|
||
|
|
Len uint32
|
||
|
|
Opcode uint32
|
||
|
|
Unique uint64
|
||
|
|
Nodeid uint64
|
||
|
|
Uid uint32
|
||
|
|
Gid uint32
|
||
|
|
Pid uint32
|
||
|
|
_ uint32
|
||
|
|
}
|
||
|
|
|
||
|
|
const inHeaderSize = int(unsafe.Sizeof(inHeader{}))
|
||
|
|
|
||
|
|
type outHeader struct {
|
||
|
|
Len uint32
|
||
|
|
Error int32
|
||
|
|
Unique uint64
|
||
|
|
}
|
||
|
|
|
||
|
|
type dirent struct {
|
||
|
|
Ino uint64
|
||
|
|
Off uint64
|
||
|
|
Namelen uint32
|
||
|
|
Type uint32
|
||
|
|
Name [0]byte
|
||
|
|
}
|
||
|
|
|
||
|
|
const direntSize = 8 + 8 + 4 + 4
|
||
|
|
|
||
|
|
const (
|
||
|
|
notifyCodePoll int32 = 1
|
||
|
|
notifyCodeInvalInode int32 = 2
|
||
|
|
notifyCodeInvalEntry int32 = 3
|
||
|
|
)
|
||
|
|
|
||
|
|
type notifyInvalInodeOut struct {
|
||
|
|
Ino uint64
|
||
|
|
Off int64
|
||
|
|
Len int64
|
||
|
|
}
|
||
|
|
|
||
|
|
type notifyInvalEntryOut struct {
|
||
|
|
Parent uint64
|
||
|
|
Namelen uint32
|
||
|
|
_ uint32
|
||
|
|
}
|