1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
package fusefrontend
import (
"context"
"syscall"
"github.com/hanwen/go-fuse/v2/fs"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/rfjakob/gocryptfs/internal/syscallcompat"
"github.com/rfjakob/gocryptfs/internal/tlog"
)
func (f *File2) Setattr(ctx context.Context, in *fuse.SetAttrIn, out *fuse.AttrOut) (errno syscall.Errno) {
errno = f.setAttr(ctx, in)
if errno != 0 {
return errno
}
return f.Getattr(ctx, out)
}
func (f *File2) setAttr(ctx context.Context, in *fuse.SetAttrIn) (errno syscall.Errno) {
f.fdLock.RLock()
defer f.fdLock.RUnlock()
if f.released {
tlog.Warn.Printf("ino%d fh%d: Truncate on released file", f.qIno.Ino, f.intFd())
return syscall.EBADF
}
f.fileTableEntry.ContentLock.Lock()
defer f.fileTableEntry.ContentLock.Unlock()
// chmod(2) & fchmod(2)
if mode, ok := in.GetMode(); ok {
errno = fs.ToErrno(syscall.Fchmod(f.intFd(), mode))
if errno != 0 {
return errno
}
}
// chown(2) & fchown(2)
uid32, uOk := in.GetUID()
gid32, gOk := in.GetGID()
if uOk || gOk {
uid := -1
gid := -1
if uOk {
uid = int(uid32)
}
if gOk {
gid = int(gid32)
}
errno = fs.ToErrno(syscall.Fchown(f.intFd(), uid, gid))
if errno != 0 {
return errno
}
}
// utimens(2)
mtime, mok := in.GetMTime()
atime, aok := in.GetATime()
if mok || aok {
ap := &atime
mp := &mtime
if !aok {
ap = nil
}
if !mok {
mp = nil
}
errno = fs.ToErrno(syscallcompat.FutimesNano(f.intFd(), ap, mp))
if errno != 0 {
return errno
}
}
// truncate(2)
if sz, ok := in.GetSize(); ok {
errno = syscall.Errno(f.truncate(sz))
if errno != 0 {
return errno
}
}
return 0
}
|
