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If the <encryption format='qcow'> element does not specify a secret during volume creation, generate a suitable secret and add it to the <encryption> tag. The caller can view the updated <encryption> tag using virStorageVolGetXMLDesc(). Similarly, when <encryption format='default'/> is specified while creating a qcow or qcow2-formatted volume, change the format to "qcow" and generate a secret as described above. * src/storage_encryption_conf.h (VIR_STORAGE_QCOW_PASSPHRASE_SIZE, virStorageGenerateQcowPasphrase), src/storage_encryption_conf.c (virStorageGenerateQcowPasphrase), src/libvirt_private.syms: Add virStorageGenerateQcowPasphrase(). * src/storage_backend.c (virStoragegenerateQcowEncryption, virStorageBackendCreateQemuImg): Generate a passphrase and <encryption> when creating a qcow-formatted encrypted volume and the user did not supply the information.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>