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authorJakob Unterwurzacher2021-06-06 19:22:16 +0200
committerJakob Unterwurzacher2021-06-06 19:22:16 +0200
commit17f859d3c409bf2730a47d56979c0700171006b7 (patch)
tree79d9e0bb8042ba516e89490fb39b13fd8ff3ce4a /internal/fusefrontend
parent6910f8670502b57cc442d3c45c5e5be1165b3d2c (diff)
fusefronted: report plaintext size on symlink creation
gocryptfs 2.0 introduced the regression that the size reported at symlink creation was the ciphertext size, which is wrong. Report the plaintext size. Fixes https://github.com/rfjakob/gocryptfs/issues/574
Diffstat (limited to 'internal/fusefrontend')
-rw-r--r--internal/fusefrontend/node.go3
-rw-r--r--internal/fusefrontend/node_helpers.go2
2 files changed, 5 insertions, 0 deletions
diff --git a/internal/fusefrontend/node.go b/internal/fusefrontend/node.go
index 657a3bc..8370a22 100644
--- a/internal/fusefrontend/node.go
+++ b/internal/fusefrontend/node.go
@@ -354,6 +354,9 @@ func (n *Node) Symlink(ctx context.Context, target, name string, out *fuse.Entry
errno = fs.ToErrno(err)
return
}
+ // Report the plaintext size, not the encrypted blob size
+ st.Size = int64(len(target))
+
inode = n.newChild(ctx, st, out)
return inode, 0
}
diff --git a/internal/fusefrontend/node_helpers.go b/internal/fusefrontend/node_helpers.go
index 6c30523..b2f1d4a 100644
--- a/internal/fusefrontend/node_helpers.go
+++ b/internal/fusefrontend/node_helpers.go
@@ -58,6 +58,8 @@ func (n *Node) readlink(dirfd int, cName string) (out []byte, errno syscall.Errn
}
// translateSize translates the ciphertext size in `out` into plaintext size.
+// Handles regular files & symlinks (and finds out what is what by looking at
+// `out.Mode`).
func (n *Node) translateSize(dirfd int, cName string, out *fuse.Attr) {
if out.IsRegular() {
rn := n.rootNode()