Re: [libvirt] [PATCH 4/9] Implement the public API for vol wiping

--- src/libvirt.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 47 insertions(+), 0 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index 1d9b878..74b075b 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -8479,6 +8479,53 @@ error: /** + * virStorageVolWipe: + * @vol: pointer to storage volume + * @flags: future flags, use 0 for now

+ * + * Ensure data previously on a volume is not accessible to future reads + * + * Returns 0 on success, or -1 on error + */ +int +virStorageVolWipe(virStorageVolPtr vol, + unsigned int flags) +{ + virConnectPtr conn; + VIR_DEBUG("vol=%p, flags=%u", vol, flags); + + virResetLastError(); + + if (!VIR_IS_CONNECTED_STORAGE_VOL(vol)) { + virLibStorageVolError(NULL, VIR_ERR_INVALID_STORAGE_VOL, __FUNCTION__); + virDispatchError(NULL); + return (-1); + } + + conn = vol->conn; + if (conn->flags & VIR_CONNECT_RO) { + virLibStorageVolError(vol, VIR_ERR_OPERATION_DENIED, __FUNCTION__); + goto error; + } + + if (conn->storageDriver && conn->storageDriver->volWipe) { + int ret; + ret = conn->storageDriver->volWipe(vol, flags); + if (ret < 0) { + goto error; + } + return ret; + } + + virLibConnError(conn, VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + virDispatchError(vol->conn); + return -1; +} + + +/** * virStorageVolFree: * @vol: pointer to storage volume *