summaryrefslogtreecommitdiff
path: root/internal
diff options
context:
space:
mode:
Diffstat (limited to 'internal')
-rw-r--r--internal/fusefrontend/file.go7
-rw-r--r--internal/fusefrontend/fs.go10
-rw-r--r--internal/inomap/inomap.go (renamed from internal/openfiletable/inummap.go)20
-rw-r--r--internal/inomap/inomap_test.go (renamed from internal/openfiletable/inummap_test.go)6
-rw-r--r--internal/inomap/qino.go25
-rw-r--r--internal/openfiletable/open_file_table.go31
6 files changed, 53 insertions, 46 deletions
diff --git a/internal/fusefrontend/file.go b/internal/fusefrontend/file.go
index 83e39be..8c2bae0 100644
--- a/internal/fusefrontend/file.go
+++ b/internal/fusefrontend/file.go
@@ -17,6 +17,7 @@ import (
"github.com/hanwen/go-fuse/fuse/nodefs"
"github.com/rfjakob/gocryptfs/internal/contentenc"
+ "github.com/rfjakob/gocryptfs/internal/inomap"
"github.com/rfjakob/gocryptfs/internal/openfiletable"
"github.com/rfjakob/gocryptfs/internal/serialize_reads"
"github.com/rfjakob/gocryptfs/internal/stupidgcm"
@@ -42,7 +43,7 @@ type File struct {
// Content encryption helper
contentEnc *contentenc.ContentEnc
// Device and inode number uniquely identify the backing file
- qIno openfiletable.QIno
+ qIno inomap.QIno
// Entry in the open file table
fileTableEntry *openfiletable.Entry
// Store where the last byte was written
@@ -66,7 +67,7 @@ func NewFile(fd *os.File, fs *FS) (*File, fuse.Status) {
tlog.Warn.Printf("NewFile: Fstat on fd %d failed: %v\n", fd.Fd(), err)
return nil, fuse.ToStatus(err)
}
- qi := openfiletable.QInoFromStat(&st)
+ qi := inomap.QInoFromStat(&st)
e := openfiletable.Register(qi)
return &File{
@@ -462,7 +463,7 @@ func (f *File) GetAttr(a *fuse.Attr) fuse.Status {
if err != nil {
return fuse.ToStatus(err)
}
- f.fs.inumMap.TranslateStat(&st)
+ f.fs.inoMap.TranslateStat(&st)
a.FromStat(&st)
a.Size = f.contentEnc.CipherSizeToPlainSize(a.Size)
if f.fs.args.ForceOwner != nil {
diff --git a/internal/fusefrontend/fs.go b/internal/fusefrontend/fs.go
index d03fc77..cfd17e3 100644
--- a/internal/fusefrontend/fs.go
+++ b/internal/fusefrontend/fs.go
@@ -18,8 +18,8 @@ import (
"github.com/rfjakob/gocryptfs/internal/configfile"
"github.com/rfjakob/gocryptfs/internal/contentenc"
+ "github.com/rfjakob/gocryptfs/internal/inomap"
"github.com/rfjakob/gocryptfs/internal/nametransform"
- "github.com/rfjakob/gocryptfs/internal/openfiletable"
"github.com/rfjakob/gocryptfs/internal/serialize_reads"
"github.com/rfjakob/gocryptfs/internal/syscallcompat"
"github.com/rfjakob/gocryptfs/internal/tlog"
@@ -59,9 +59,9 @@ type FS struct {
IsIdle uint32
// dirCache caches directory fds
dirCache dirCacheStruct
- // inumMap translates inode numbers from different devices to unique inode
+ // inoMap translates inode numbers from different devices to unique inode
// numbers.
- inumMap *openfiletable.InumMap
+ inoMap *inomap.InoMap
}
//var _ pathfs.FileSystem = &FS{} // Verify that interface is implemented.
@@ -85,7 +85,7 @@ func NewFS(args Args, c *contentenc.ContentEnc, n nametransform.NameTransformer)
args: args,
nameTransform: n,
contentEnc: c,
- inumMap: openfiletable.NewInumMap(uint64(st.Dev)), // cast is needed for Darwin
+ inoMap: inomap.New(uint64(st.Dev)), // cast is needed for Darwin
}
}
@@ -109,7 +109,7 @@ func (fs *FS) GetAttr(relPath string, context *fuse.Context) (*fuse.Attr, fuse.S
}
a := &fuse.Attr{}
st2 := syscallcompat.Unix2syscall(st)
- fs.inumMap.TranslateStat(&st2)
+ fs.inoMap.TranslateStat(&st2)
a.FromStat(&st2)
if a.IsRegular() {
a.Size = fs.contentEnc.CipherSizeToPlainSize(a.Size)
diff --git a/internal/openfiletable/inummap.go b/internal/inomap/inomap.go
index d9f6862..f8909c7 100644
--- a/internal/openfiletable/inummap.go
+++ b/internal/inomap/inomap.go
@@ -1,4 +1,4 @@
-package openfiletable
+package inomap
import (
"sync"
@@ -8,25 +8,25 @@ import (
// UINT64_MAX = 18446744073709551615
const inumTranslateBase = 10000000000000000000
-// InumMap ... see NewInumMap() for description.
-type InumMap struct {
+// InoMap ... see New() for description.
+type InoMap struct {
sync.Mutex
baseDev uint64
translate map[QIno]uint64
translateNext uint64
}
-// NewInumMap returns a new inumMap.
+// New returns a new InoMap.
//
-// inumMap translates (device uint64, inode uint64) pairs to unique uint64
+// InoMap translates (device uint64, inode uint64) pairs to unique uint64
// inode numbers.
// Inode numbers on the "baseDev" are passed through unchanged (as long as they
// are not higher than inumTranslateBase).
// Inode numbers on other devices are remapped to the number space above
// 10000000000000000000. The mapping is stored in a simple Go map. Entries
// can only be added and are never removed.
-func NewInumMap(baseDev uint64) *InumMap {
- return &InumMap{
+func New(baseDev uint64) *InoMap {
+ return &InoMap{
baseDev: baseDev,
translate: make(map[QIno]uint64),
translateNext: inumTranslateBase,
@@ -34,7 +34,7 @@ func NewInumMap(baseDev uint64) *InumMap {
}
// Translate maps the passed-in (device, inode) pair to a unique inode number.
-func (m *InumMap) Translate(in QIno) (out uint64) {
+func (m *InoMap) Translate(in QIno) (out uint64) {
if in.Dev == m.baseDev && in.Ino < inumTranslateBase {
return in.Ino
}
@@ -52,12 +52,12 @@ func (m *InumMap) Translate(in QIno) (out uint64) {
// TranslateStat translates the inode number contained in "st" if neccessary.
// Convience wrapper around Translate().
-func (m *InumMap) TranslateStat(st *syscall.Stat_t) {
+func (m *InoMap) TranslateStat(st *syscall.Stat_t) {
in := QInoFromStat(st)
st.Ino = m.Translate(in)
}
// Count returns the number of entries in the translation table.
-func (m *InumMap) Count() int {
+func (m *InoMap) Count() int {
return len(m.translate)
}
diff --git a/internal/openfiletable/inummap_test.go b/internal/inomap/inomap_test.go
index 85438bd..3c0ea7d 100644
--- a/internal/openfiletable/inummap_test.go
+++ b/internal/inomap/inomap_test.go
@@ -1,4 +1,4 @@
-package openfiletable
+package inomap
import (
"sync"
@@ -7,7 +7,7 @@ import (
func TestTranslate(t *testing.T) {
const baseDev = 12345
- m := NewInumMap(baseDev)
+ m := New(baseDev)
q := QIno{Dev: baseDev, Ino: 1}
out := m.Translate(q)
@@ -27,7 +27,7 @@ func TestTranslate(t *testing.T) {
func TestTranslateStress(t *testing.T) {
const baseDev = 12345
- m := NewInumMap(baseDev)
+ m := New(baseDev)
var wg sync.WaitGroup
wg.Add(4)
go func() {
diff --git a/internal/inomap/qino.go b/internal/inomap/qino.go
new file mode 100644
index 0000000..8f99004
--- /dev/null
+++ b/internal/inomap/qino.go
@@ -0,0 +1,25 @@
+package inomap
+
+import (
+ "syscall"
+)
+
+// QIno = Qualified Inode number.
+// Uniquely identifies a backing file through the device number,
+// inode number pair.
+type QIno struct {
+ // Stat_t.{Dev,Ino} is uint64 on 32- and 64-bit Linux
+ Dev uint64
+ Ino uint64
+}
+
+// QInoFromStat fills a new QIno struct with the passed Stat_t info.
+func QInoFromStat(st *syscall.Stat_t) QIno {
+ return QIno{
+ // There are some architectures that use 32-bit values here
+ // (darwin, freebsd-32, maybe others). Add and explicit cast to make
+ // this function work everywhere.
+ Dev: uint64(st.Dev),
+ Ino: uint64(st.Ino),
+ }
+}
diff --git a/internal/openfiletable/open_file_table.go b/internal/openfiletable/open_file_table.go
index 4a8ce28..dfd9637 100644
--- a/internal/openfiletable/open_file_table.go
+++ b/internal/openfiletable/open_file_table.go
@@ -7,28 +7,9 @@ package openfiletable
import (
"sync"
"sync/atomic"
- "syscall"
-)
-
-// QIno = Qualified Inode number.
-// Uniquely identifies a backing file through the device number,
-// inode number pair.
-type QIno struct {
- // Stat_t.{Dev,Ino} is uint64 on 32- and 64-bit Linux
- Dev uint64
- Ino uint64
-}
-// QInoFromStat fills a new QIno struct with the passed Stat_t info.
-func QInoFromStat(st *syscall.Stat_t) QIno {
- return QIno{
- // There are some architectures that use 32-bit values here
- // (darwin, freebsd-32, maybe others). Add and explicit cast to make
- // this function work everywhere.
- Dev: uint64(st.Dev),
- Ino: uint64(st.Ino),
- }
-}
+ "github.com/rfjakob/gocryptfs/internal/inomap"
+)
// wlock - serializes write accesses to each file (identified by inode number)
// Writing partial blocks means we have to do read-modify-write cycles. We
@@ -38,7 +19,7 @@ func QInoFromStat(st *syscall.Stat_t) QIno {
var t table
func init() {
- t.entries = make(map[QIno]*Entry)
+ t.entries = make(map[inomap.QIno]*Entry)
}
type table struct {
@@ -52,7 +33,7 @@ type table struct {
// Protects map access
sync.Mutex
// Table entries
- entries map[QIno]*Entry
+ entries map[inomap.QIno]*Entry
}
// Entry is an entry in the open file table
@@ -71,7 +52,7 @@ type Entry struct {
// Register creates an open file table entry for "qi" (or incrementes the
// reference count if the entry already exists) and returns the entry.
-func Register(qi QIno) *Entry {
+func Register(qi inomap.QIno) *Entry {
t.Lock()
defer t.Unlock()
@@ -86,7 +67,7 @@ func Register(qi QIno) *Entry {
// Unregister decrements the reference count for "qi" and deletes the entry from
// the open file table if the reference count reaches 0.
-func Unregister(qi QIno) {
+func Unregister(qi inomap.QIno) {
t.Lock()
defer t.Unlock()
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 22:35:54 +0000