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From d4434c05e7c0cf05d87089404cfa2deedc60811a Mon Sep 17 00:00:00 2001
From: Ingo Franzki <ifranzki@linux.ibm.com>
Date: Mon, 29 Oct 2018 16:47:40 +0100
Subject: [PATCH] crypto: Add support for LUKS2
Cryptsetup version 2.0 added support for LUKS2.
This patch adds support for mounting LUKS2 volumes with
pam_mount.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
---
src/crypto-dmc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/crypto-dmc.c b/src/crypto-dmc.c
index d0ab6ca..abd0358 100644
--- a/src/crypto-dmc.c
+++ b/src/crypto-dmc.c
@@ -21,6 +21,12 @@
#include "libcryptmount.h"
#include "pam_mount.h"
+#ifndef CRYPT_LUKS
+ #define CRYPT_LUKS NULL /* Passing NULL to crypt_load will
+ default to LUKS(1) on older
+ libcryptsetup versions. */
+#endif
+
/**
* dmc_is_luks - check if @path points to a LUKS volume (cf. normal dm-crypt)
* @path: path to the crypto container
@@ -48,7 +54,7 @@ EXPORT_SYMBOL int ehd_is_luks(const char *path, bool blkdev)
ret = crypt_init(&cd, device);
if (ret == 0) {
- ret = crypt_load(cd, CRYPT_LUKS1, NULL);
+ ret = crypt_load(cd, CRYPT_LUKS, NULL);
if (ret == -EINVAL)
ret = false;
else if (ret == 0)
@@ -106,7 +112,7 @@ static bool dmc_run(const struct ehd_mount_request *req,
#endif
}
- ret = crypt_load(cd, CRYPT_LUKS1, NULL);
+ ret = crypt_load(cd, CRYPT_LUKS, NULL);
if (ret == 0) {
ret = crypt_activate_by_passphrase(cd, mt->crypto_name,
CRYPT_ANY_SLOT, req->key_data, req->key_size, flags);
--
2.21.0
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