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Diffstat (limited to 'internal/fusefrontend/file.go')
-rw-r--r--internal/fusefrontend/file.go54
1 files changed, 27 insertions, 27 deletions
diff --git a/internal/fusefrontend/file.go b/internal/fusefrontend/file.go
index ab35a59..92b1496 100644
--- a/internal/fusefrontend/file.go
+++ b/internal/fusefrontend/file.go
@@ -8,7 +8,6 @@ import (
"log"
"os"
"sync"
- "sync/atomic"
"syscall"
"time"
@@ -16,6 +15,7 @@ import (
"github.com/hanwen/go-fuse/fuse/nodefs"
"github.com/rfjakob/gocryptfs/internal/contentenc"
+ "github.com/rfjakob/gocryptfs/internal/openfiletable"
"github.com/rfjakob/gocryptfs/internal/serialize_reads"
"github.com/rfjakob/gocryptfs/internal/stupidgcm"
"github.com/rfjakob/gocryptfs/internal/syscallcompat"
@@ -40,9 +40,9 @@ type file struct {
// Content encryption helper
contentEnc *contentenc.ContentEnc
// Device and inode number uniquely identify the backing file
- devIno DevInoStruct
- // Entry in the open file map
- fileTableEntry *openFileEntryT
+ qIno openfiletable.QIno
+ // Entry in the open file table
+ fileTableEntry *openfiletable.Entry
// go-fuse nodefs.loopbackFile
loopbackFile nodefs.File
// Store where the last byte was written
@@ -66,15 +66,15 @@ func NewFile(fd *os.File, writeOnly bool, fs *FS) (nodefs.File, fuse.Status) {
tlog.Warn.Printf("NewFile: Fstat on fd %d failed: %v\n", fd.Fd(), err)
return nil, fuse.ToStatus(err)
}
- di := DevInoFromStat(&st)
- t := openFileMap.register(di)
+ qi := openfiletable.QInoFromStat(&st)
+ e := openfiletable.Register(qi)
return &file{
fd: fd,
writeOnly: writeOnly,
contentEnc: fs.contentEnc,
- devIno: di,
- fileTableEntry: t,
+ qIno: qi,
+ fileTableEntry: e,
loopbackFile: nodefs.NewLoopbackFile(fd),
fs: fs,
File: nodefs.NewDefaultFile(),
@@ -106,7 +106,7 @@ func (f *file) readFileID() ([]byte, error) {
if err != nil {
if err == io.EOF && n != 0 {
tlog.Warn.Printf("ino%d: readFileID: incomplete file, got %d instead of %d bytes",
- f.devIno.ino, n, readLen)
+ f.qIno.Ino, n, readLen)
}
return nil, err
}
@@ -128,7 +128,7 @@ func (f *file) createHeader() (fileID []byte, err error) {
if !f.fs.args.NoPrealloc {
err = syscallcompat.EnospcPrealloc(int(f.fd.Fd()), 0, contentenc.HeaderLen)
if err != nil {
- tlog.Warn.Printf("ino%d: createHeader: prealloc failed: %s\n", f.devIno.ino, err.Error())
+ tlog.Warn.Printf("ino%d: createHeader: prealloc failed: %s\n", f.qIno.Ino, err.Error())
return nil, err
}
}
@@ -200,10 +200,10 @@ func (f *file) doRead(off uint64, length uint64) ([]byte, fuse.Status) {
// We do not have the information which block was corrupt here anymore,
// but DecryptBlocks() has already logged it anyway.
tlog.Warn.Printf("ino%d: doRead off=%d len=%d: returning corrupt data due to forcedecode",
- f.devIno.ino, off, length)
+ f.qIno.Ino, off, length)
} else {
curruptBlockNo := firstBlockNo + f.contentEnc.PlainOffToBlockNo(uint64(len(plaintext)))
- tlog.Warn.Printf("ino%d: doRead: corrupt block #%d: %v", f.devIno.ino, curruptBlockNo, err)
+ tlog.Warn.Printf("ino%d: doRead: corrupt block #%d: %v", f.qIno.Ino, curruptBlockNo, err)
return nil, fuse.EIO
}
}
@@ -227,10 +227,10 @@ func (f *file) Read(buf []byte, off int64) (resultData fuse.ReadResult, code fus
f.fdLock.RLock()
defer f.fdLock.RUnlock()
- tlog.Debug.Printf("ino%d: FUSE Read: offset=%d length=%d", f.devIno.ino, len(buf), off)
+ tlog.Debug.Printf("ino%d: FUSE Read: offset=%d length=%d", f.qIno.Ino, len(buf), off)
if f.writeOnly {
- tlog.Warn.Printf("ino%d: Tried to read from write-only file", f.devIno.ino)
+ tlog.Warn.Printf("ino%d: Tried to read from write-only file", f.qIno.Ino)
return nil, fuse.EBADF
}
@@ -245,13 +245,13 @@ func (f *file) Read(buf []byte, off int64) (resultData fuse.ReadResult, code fus
}
if status == fuse.EIO {
- tlog.Warn.Printf("ino%d: Read: returning EIO, offset=%d, length=%d", f.devIno.ino, len(buf), off)
+ tlog.Warn.Printf("ino%d: Read: returning EIO, offset=%d, length=%d", f.qIno.Ino, len(buf), off)
}
if status != fuse.OK {
return nil, status
}
- tlog.Debug.Printf("ino%d: Read: status %v, returning %d bytes", f.devIno.ino, status, len(out))
+ tlog.Debug.Printf("ino%d: Read: status %v, returning %d bytes", f.qIno.Ino, status, len(out))
return fuse.ReadResultData(out), status
}
@@ -302,7 +302,7 @@ func (f *file) doWrite(data []byte, off int64) (uint32, fuse.Status) {
var oldData []byte
oldData, status = f.doRead(o, f.contentEnc.PlainBS())
if status != fuse.OK {
- tlog.Warn.Printf("ino%d fh%d: RMW read failed: %s", f.devIno.ino, f.intFd(), status.String())
+ tlog.Warn.Printf("ino%d fh%d: RMW read failed: %s", f.qIno.Ino, f.intFd(), status.String())
return 0, status
}
// Modify
@@ -312,7 +312,7 @@ func (f *file) doWrite(data []byte, off int64) (uint32, fuse.Status) {
// Encrypt
blockData = f.contentEnc.EncryptBlock(blockData, b.BlockNo, fileID)
tlog.Debug.Printf("ino%d: Writing %d bytes to block #%d",
- f.devIno.ino, uint64(len(blockData))-f.contentEnc.BlockOverhead(), b.BlockNo)
+ f.qIno.Ino, uint64(len(blockData))-f.contentEnc.BlockOverhead(), b.BlockNo)
// Store output data in the writeChain
writeChain[i] = blockData
numOutBytes += len(blockData)
@@ -330,7 +330,7 @@ func (f *file) doWrite(data []byte, off int64) (uint32, fuse.Status) {
if !f.fs.args.NoPrealloc {
err = syscallcompat.EnospcPrealloc(int(f.fd.Fd()), int64(cOff), int64(writeBuf.Len()))
if err != nil {
- tlog.Warn.Printf("ino%d fh%d: doWrite: prealloc failed: %s", f.devIno.ino, f.intFd(), err.Error())
+ tlog.Warn.Printf("ino%d fh%d: doWrite: prealloc failed: %s", f.qIno.Ino, f.intFd(), err.Error())
return 0, fuse.ToStatus(err)
}
}
@@ -349,7 +349,7 @@ func (f *file) doWrite(data []byte, off int64) (uint32, fuse.Status) {
// Stat() call is very expensive.
// The caller must "wlock.lock(f.devIno.ino)" otherwise this check would be racy.
func (f *file) isConsecutiveWrite(off int64) bool {
- opCount := atomic.LoadUint64(&openFileMap.opCount)
+ opCount := openfiletable.WriteLockCount()
return opCount == f.lastOpCount+1 && off == f.lastWrittenOffset+1
}
@@ -363,12 +363,12 @@ func (f *file) Write(data []byte, off int64) (uint32, fuse.Status) {
// The file descriptor has been closed concurrently, which also means
// the wlock has been freed. Exit here so we don't crash trying to access
// it.
- tlog.Warn.Printf("ino%d fh%d: Write on released file", f.devIno.ino, f.intFd())
+ tlog.Warn.Printf("ino%d fh%d: Write on released file", f.qIno.Ino, f.intFd())
return 0, fuse.EBADF
}
- f.fileTableEntry.writeLock.Lock()
- defer f.fileTableEntry.writeLock.Unlock()
- tlog.Debug.Printf("ino%d: FUSE Write: offset=%d length=%d", f.devIno.ino, off, len(data))
+ f.fileTableEntry.WriteLock.Lock()
+ defer f.fileTableEntry.WriteLock.Unlock()
+ tlog.Debug.Printf("ino%d: FUSE Write: offset=%d length=%d", f.qIno.Ino, off, len(data))
// If the write creates a file hole, we have to zero-pad the last block.
// But if the write directly follows an earlier write, it cannot create a
// hole, and we can save one Stat() call.
@@ -380,7 +380,7 @@ func (f *file) Write(data []byte, off int64) (uint32, fuse.Status) {
}
n, status := f.doWrite(data, off)
if status.Ok() {
- f.lastOpCount = atomic.LoadUint64(&openFileMap.opCount)
+ f.lastOpCount = openfiletable.WriteLockCount()
f.lastWrittenOffset = off + int64(len(data)) - 1
}
return n, status
@@ -390,13 +390,13 @@ func (f *file) Write(data []byte, off int64) (uint32, fuse.Status) {
func (f *file) Release() {
f.fdLock.Lock()
if f.released {
- log.Panicf("ino%d fh%d: double release", f.devIno.ino, f.intFd())
+ log.Panicf("ino%d fh%d: double release", f.qIno.Ino, f.intFd())
}
f.fd.Close()
f.released = true
f.fdLock.Unlock()
- openFileMap.unregister(f.devIno)
+ openfiletable.Unregister(f.qIno)
}
// Flush - FUSE call
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 22:44:27 +0000