Re: [libvirt] [PATCH 13/20] Recognize encryption format of qcow volumes.

(The implementation is not very generic, but that can be very easily rectified if/when new encryption formats appear.) --- src/storage_backend_fs.c | 61 +++++++++++++++++++++++++++++++++++---------- 1 files changed, 47 insertions(+), 14 deletions(-) @@ -375,6 +384,16 @@ static int virStorageBackendProbeTarget(virConnectPtr conn, *capacity *= fileTypeInfo[i].sizeMultiplier; } + if (fileTypeInfo[i].qcowCryptOffset != -1) { + int crypt_format; + + crypt_format = (head[fileTypeInfo[i].qcowCryptOffset] << 24) | + (head[fileTypeInfo[i].qcowCryptOffset+1] << 16) | + (head[fileTypeInfo[i].qcowCryptOffset+2] << 8) | + head[fileTypeInfo[i].qcowCryptOffset+3]; + encrypted_qcow = crypt_format != 0; + }