diff options
Diffstat (limited to 'internal/fusefrontend_reverse/node.go')
-rw-r--r-- | internal/fusefrontend_reverse/node.go | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/internal/fusefrontend_reverse/node.go b/internal/fusefrontend_reverse/node.go index 713beee..884a97e 100644 --- a/internal/fusefrontend_reverse/node.go +++ b/internal/fusefrontend_reverse/node.go @@ -2,6 +2,7 @@ package fusefrontend_reverse import ( "context" + "path/filepath" "syscall" "golang.org/x/sys/unix" @@ -20,16 +21,16 @@ type Node struct { } // Lookup - FUSE call for discovering a file. -func (n *Node) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (ch *fs.Inode, errno syscall.Errno) { +func (n *Node) Lookup(ctx context.Context, cName string, out *fuse.EntryOut) (ch *fs.Inode, errno syscall.Errno) { dirfd := int(-1) pName := "" - t := n.lookupFileType(name) + t := n.lookupFileType(cName) if t == typeDiriv { // gocryptfs.diriv return n.lookupDiriv(ctx, out) } else if t == typeName { // gocryptfs.longname.*.name - return n.lookupLongnameName(ctx, name, out) + return n.lookupLongnameName(ctx, cName, out) } else if t == typeConfig { // gocryptfs.conf var err error @@ -43,7 +44,7 @@ func (n *Node) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (ch defer syscall.Close(dirfd) } else if t == typeReal { // real file - dirfd, pName, errno = n.prepareAtSyscall(name) + dirfd, pName, errno = n.prepareAtSyscall(cName) if errno != 0 { return } @@ -58,7 +59,7 @@ func (n *Node) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (ch ch = n.newChild(ctx, st, out) // Translate ciphertext size in `out.Attr.Size` to plaintext size if t == typeReal { - n.translateSize(dirfd, pName, &out.Attr) + n.translateSize(dirfd, cName, pName, &out.Attr) } return ch, 0 } @@ -89,10 +90,25 @@ func (n *Node) Getattr(ctx context.Context, f fs.FileHandle, out *fuse.AttrOut) out.Attr.FromStat(st) // Translate ciphertext size in `out.Attr.Size` to plaintext size - n.translateSize(dirfd, pName, &out.Attr) + cName := filepath.Base(n.Path()) + n.translateSize(dirfd, cName, pName, &out.Attr) if rn.args.ForceOwner != nil { out.Owner = *rn.args.ForceOwner } return 0 } + +// Readlink - FUSE call. +// +// Symlink-safe through openBackingDir() + Readlinkat(). +func (n *Node) Readlink(ctx context.Context) (out []byte, errno syscall.Errno) { + dirfd, pName, errno := n.prepareAtSyscall("") + if errno != 0 { + return + } + defer syscall.Close(dirfd) + + cName := filepath.Base(n.Path()) + return n.readlink(dirfd, cName, pName) +} |