[PATCH v3 3/5] conf: add luks2 encryption format

[Or Ozeri <oro@xxxxxxxxxx>]

This commit extends libvirt XML configuration to support luks2 encryption format.
This means that <encryption format="luks2"> becomes valid.
Actual handler (other than returning "not supported") for this new format will be added in an upcoming commit.

Signed-off-by: Or Ozeri <oro@xxxxxxxxxx>
---
 docs/formatstorageencryption.html.in | 2 +-
 docs/schemas/storagecommon.rng       | 1 +
 src/conf/storage_encryption_conf.c   | 2 +-
 src/conf/storage_encryption_conf.h   | 1 +
 src/qemu/qemu_block.c                | 1 +
 src/qemu/qemu_domain.c               | 3 ++-
 6 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/docs/formatstorageencryption.html.in b/docs/formatstorageencryption.html.in
index 7215c307d7..b2631ab25d 100644
--- a/docs/formatstorageencryption.html.in
+++ b/docs/formatstorageencryption.html.in
@@ -18,7 +18,7 @@
       is <code>encryption</code>, with a mandatory
       attribute <code>format</code>.  Currently defined values
       of <code>format</code> are <code>default</code>, <code>qcow</code>,
-      and <code>luks</code>.
+      <code>luks</code>, and <code>luks2</code>.
       Each value of <code>format</code> implies some expectations about the
       content of the <code>encryption</code> tag.  Other format values may be
       defined in the future.
diff --git a/docs/schemas/storagecommon.rng b/docs/schemas/storagecommon.rng
index 9ebb27700d..7d1d066289 100644
--- a/docs/schemas/storagecommon.rng
+++ b/docs/schemas/storagecommon.rng
@@ -13,6 +13,7 @@
           <value>default</value>
           <value>qcow</value>
           <value>luks</value>
+          <value>luks2</value>
         </choice>
       </attribute>
       <interleave>
diff --git a/src/conf/storage_encryption_conf.c b/src/conf/storage_encryption_conf.c
index 9112b96cc7..2df4ec96af 100644
--- a/src/conf/storage_encryption_conf.c
+++ b/src/conf/storage_encryption_conf.c
@@ -44,7 +44,7 @@ VIR_ENUM_IMPL(virStorageEncryptionSecret,
 
 VIR_ENUM_IMPL(virStorageEncryptionFormat,
               VIR_STORAGE_ENCRYPTION_FORMAT_LAST,
-              "default", "qcow", "luks",
+              "default", "qcow", "luks", "luks2",
 );
 
 static void
diff --git a/src/conf/storage_encryption_conf.h b/src/conf/storage_encryption_conf.h
index 34adbd5f7b..32e3a1243a 100644
--- a/src/conf/storage_encryption_conf.h
+++ b/src/conf/storage_encryption_conf.h
@@ -56,6 +56,7 @@ typedef enum {
     VIR_STORAGE_ENCRYPTION_FORMAT_DEFAULT = 0,
     VIR_STORAGE_ENCRYPTION_FORMAT_QCOW, /* Both qcow and qcow2 */
     VIR_STORAGE_ENCRYPTION_FORMAT_LUKS,
+    VIR_STORAGE_ENCRYPTION_FORMAT_LUKS2,
 
     VIR_STORAGE_ENCRYPTION_FORMAT_LAST,
 } virStorageEncryptionFormatType;
diff --git a/src/qemu/qemu_block.c b/src/qemu/qemu_block.c
index 393d3f44d7..31b6b3566b 100644
--- a/src/qemu/qemu_block.c
+++ b/src/qemu/qemu_block.c
@@ -1328,6 +1328,7 @@ qemuBlockStorageSourceGetCryptoProps(virStorageSource *src,
         break;
 
     case VIR_STORAGE_ENCRYPTION_FORMAT_DEFAULT:
+    case VIR_STORAGE_ENCRYPTION_FORMAT_LUKS2:
     case VIR_STORAGE_ENCRYPTION_FORMAT_LAST:
     default:
         virReportEnumRangeError(virStorageEncryptionFormatType,
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 288a40bca6..cd65e8b365 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1228,7 +1228,8 @@ static bool
 qemuDomainDiskHasEncryptionSecret(virStorageSource *src)
 {
     if (!virStorageSourceIsEmpty(src) && src->encryption &&
-        src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS &&
+        (src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS ||
+         src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS2) &&
         src->encryption->nsecrets > 0)
         return true;
 
-- 
2.25.1