From 1ed3d51df1750d5472b1349222c352171f1e8d64 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 18 Mar 2018 17:43:38 +0100
Subject: fusefrontend: add xattr support

At the moment, only for reverse mode.

https://github.com/rfjakob/gocryptfs/issues/217
---
 internal/contentenc/content.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'internal/contentenc')

diff --git a/internal/contentenc/content.go b/internal/contentenc/content.go
index e2a531c..c4ba7c9 100644
--- a/internal/contentenc/content.go
+++ b/internal/contentenc/content.go
@@ -131,10 +131,11 @@ func (be *ContentEnc) DecryptBlocks(ciphertext []byte, firstBlockNo uint64, file
 
 // concatAD concatenates the block number and the file ID to a byte blob
 // that can be passed to AES-GCM as associated data (AD).
-// Result is: aData = blockNo.bigEndian + fileID.
+// Result is: aData = [blockNo.bigEndian fileID].
 func concatAD(blockNo uint64, fileID []byte) (aData []byte) {
 	if fileID != nil && len(fileID) != headerIDLen {
-		// fileID is nil when decrypting the master key from the config file
+		// fileID is nil when decrypting the master key from the config file,
+		// and for symlinks and xattrs.
 		log.Panicf("wrong fileID length: %d", len(fileID))
 	}
 	const lenUint64 = 8
-- 
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