[systemd-devel] [PATCH] This patch solves the bug 52630 described here: https://bugs.freedesktop.org/show_bug.cgi?id=52630 .

[qlefebvre_pro at yahoo.com]

From: Quentin Lefebvre <qlefebvre_pro at yahoo.com>

For plain dm-crypt devices, the behavior of cryptsetup package is to ignore the hash algorithm when a key file is provided.
With this patch, systemd-cryptsetup now behaves as cryptsetup, so that old plain dm-crypt devices created with cryptsetup can be mounted at boot time by systemd, with no modification of /etc/crypttab.
---
 src/cryptsetup/cryptsetup.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index 94570eb..88626da 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -403,6 +403,11 @@ static int attach_luks_or_plain(struct crypt_device *cd,
                 } else
                         params.hash = "ripemd160";
 
+                /* for CRYPT_PLAIN, the behavior of cryptsetup package
+                 * is to ignore the hash algorithm when a key file is provided */
+                if (key_file)
+                        params.hash = NULL;
+
                 if (arg_cipher) {
                         size_t l;
 
-- 
2.1.3