Re: [libvirt] [PATCH] storage: replace the deprecated option of qemu-img.

qemu-img silently disable "-e", so we can't use it for volume encryption anymore, change it into "-o encryption=on". I'm afraid of it will inroduce compatibility problem for older qemu without "-o" option, but "-o" option is already used in the codes, seems it's fine.

* src/storage/storage_backend.c --- src/storage/storage_backend.c | 17 +++++++++++------ 1 files changed, 11 insertions(+), 6 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..c381444 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -778,7 +778,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, imgargv[8] = vol->target.path; imgargv[9] = size; if (vol->target.encryption != NULL) - imgargv[10] = "-e"; + imgargv[10] = "-o encryption=on"; break; case QEMU_IMG_BACKING_FORMAT_OPTIONS: @@ -786,13 +786,18 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, virReportOOMError(); goto cleanup; } + + if (vol->target.encryption != NULL) { + if (virAsprintf(&optflag, ",encryption=on") < 0) { + virReportOOMError(); + goto cleanup; + } + } + imgargv[6] = "-o"; imgargv[7] = optflag; imgargv[8] = vol->target.path; imgargv[9] = size; - if (vol->target.encryption != NULL) - imgargv[10] = "-e"; - break; default: VIR_INFO("Unable to set backing store format for %s with %s", @@ -800,7 +805,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, imgargv[6] = vol->target.path; imgargv[7] = size; if (vol->target.encryption != NULL) - imgargv[8] = "-e"; + imgargv[8] = "-o encryption=on"; } ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); @@ -817,7 +822,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, NULL }; if (vol->target.encryption != NULL) - imgargv[6] = "-e"; + imgargv[6] = "-o encryption=on"; ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); }