[libvirt] [PATCHv3 1/4] VMX: Create virVMXFormatDisk() from HD and CD-ROM
Doug Goldstein
cardoe at cardoe.com
Wed Aug 28 21:53:42 UTC 2013
virVMXFormatHardDisk() and virVMXFormatCDROM() duplicated a lot of code
from each other and made a lot of nested if checks to build each part of
the VMX file. This hopefully simplifies the code path while combining
the two functions with no net difference.
---
src/libvirt_vmx.syms | 3 +-
src/vmx/vmx.c | 192 +++++++++++++++++----------------------------------
src/vmx/vmx.h | 5 +-
3 files changed, 64 insertions(+), 136 deletions(-)
diff --git a/src/libvirt_vmx.syms b/src/libvirt_vmx.syms
index 206ad44..e673923 100644
--- a/src/libvirt_vmx.syms
+++ b/src/libvirt_vmx.syms
@@ -6,11 +6,10 @@
virVMXConvertToUTF8;
virVMXDomainXMLConfInit;
virVMXEscapeHex;
-virVMXFormatCDROM;
virVMXFormatConfig;
+virVMXFormatDisk;
virVMXFormatEthernet;
virVMXFormatFloppy;
-virVMXFormatHardDisk;
virVMXFormatParallel;
virVMXFormatSerial;
virVMXFormatVNC;
diff --git a/src/vmx/vmx.c b/src/vmx/vmx.c
index 35afe26..f5cb9fe 100644
--- a/src/vmx/vmx.c
+++ b/src/vmx/vmx.c
@@ -517,7 +517,6 @@ VIR_ENUM_IMPL(virVMXControllerModelSCSI, VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST,
"UNUSED lsisas1078");
-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Helpers
*/
@@ -3213,14 +3212,8 @@ virVMXFormatConfig(virVMXContext *ctx, virDomainXMLOptionPtr xmlopt, virDomainDe
for (i = 0; i < def->ndisks; ++i) {
switch (def->disks[i]->device) {
case VIR_DOMAIN_DISK_DEVICE_DISK:
- if (virVMXFormatHardDisk(ctx, def->disks[i], &buffer) < 0) {
- goto cleanup;
- }
-
- break;
-
case VIR_DOMAIN_DISK_DEVICE_CDROM:
- if (virVMXFormatCDROM(ctx, def->disks[i], &buffer) < 0) {
+ if (virVMXFormatDisk(ctx, def->disks[i], &buffer) < 0) {
goto cleanup;
}
@@ -3369,67 +3362,89 @@ virVMXFormatVNC(virDomainGraphicsDefPtr def, virBufferPtr buffer)
return 0;
}
-
-
int
-virVMXFormatHardDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
+virVMXFormatDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
virBufferPtr buffer)
{
int controllerOrBus, unit;
- const char *busName = NULL;
- const char *entryPrefix = NULL;
- const char *deviceTypePrefix = NULL;
+ const char *vmxDeviceType = NULL;
char *fileName = NULL;
- if (def->device != VIR_DOMAIN_DISK_DEVICE_DISK) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid argument"));
+ /* Convert a handful of types to their string values */
+ const char *busType = virDomainDiskBusTypeToString(def->bus);
+ const char *deviceType = virDomainDeviceTypeToString(def->device);
+ const char *diskType = virDomainDeviceTypeToString(def->type);
+
+ /* If we are dealing with a disk its a .vmdk, otherwise it must be
+ * an ISO.
+ */
+ const char *fileExt = (def->device == VIR_DOMAIN_DISK_DEVICE_DISK) ?
+ ".vmdk" : ".iso";
+
+ /* Check that we got a valid device type */
+ if (def->device != VIR_DOMAIN_DISK_DEVICE_DISK &&
+ def->device != VIR_DOMAIN_DISK_DEVICE_CDROM) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Invalid device type supplied: %s"), deviceType);
return -1;
}
- if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
- busName = "SCSI";
- entryPrefix = "scsi";
- deviceTypePrefix = "scsi";
+ /* We only support type='file' and type='block' */
+ if (def->type != VIR_DOMAIN_DISK_TYPE_FILE &&
+ def->type != VIR_DOMAIN_DISK_TYPE_BLOCK) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("%s %s '%s' has unsupported type '%s', expecting "
+ "'%s' or '%s'"), busType, deviceType, def->dst, diskType,
+ virDomainDiskTypeToString(VIR_DOMAIN_DISK_TYPE_FILE),
+ virDomainDiskTypeToString(VIR_DOMAIN_DISK_TYPE_BLOCK));
+ return -1;
+ }
+ if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
if (virVMXSCSIDiskNameToControllerAndUnit(def->dst, &controllerOrBus,
&unit) < 0) {
return -1;
}
} else if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) {
- busName = "IDE";
- entryPrefix = "ide";
- deviceTypePrefix = "ata";
-
if (virVMXIDEDiskNameToBusAndUnit(def->dst, &controllerOrBus,
- &unit) < 0) {
+ &unit) < 0) {
return -1;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("Unsupported bus type '%s' for harddisk"),
- virDomainDiskBusTypeToString(def->bus));
+ _("Unsupported bus type '%s' for %s"),
+ busType, deviceType);
return -1;
}
- if (def->type != VIR_DOMAIN_DISK_TYPE_FILE) {
+ if (def->device == VIR_DOMAIN_DISK_DEVICE_DISK &&
+ def->type == VIR_DOMAIN_DISK_TYPE_FILE) {
+ vmxDeviceType = (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) ?
+ "scsi-hardDisk" : "ata-hardDisk";
+ } else if (def->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
+ if (def->type == VIR_DOMAIN_DISK_TYPE_FILE)
+ vmxDeviceType = "cdrom-image";
+ else
+ vmxDeviceType = "atapi-cdrom";
+ } else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("%s harddisk '%s' has unsupported type '%s', expecting '%s'"),
- busName, def->dst, virDomainDiskTypeToString(def->type),
- virDomainDiskTypeToString(VIR_DOMAIN_DISK_TYPE_FILE));
+ _("%s %s '%s' has an unsupported type '%s'"),
+ busType, deviceType, def->dst, diskType);
return -1;
}
virBufferAsprintf(buffer, "%s%d:%d.present = \"true\"\n",
- entryPrefix, controllerOrBus, unit);
- virBufferAsprintf(buffer, "%s%d:%d.deviceType = \"%s-hardDisk\"\n",
- entryPrefix, controllerOrBus, unit, deviceTypePrefix);
+ busType, controllerOrBus, unit);
+ virBufferAsprintf(buffer, "%s%d:%d.deviceType = \"%s\"\n",
+ busType, controllerOrBus, unit, vmxDeviceType);
- if (def->src != NULL) {
- if (! virFileHasSuffix(def->src, ".vmdk")) {
+ if (def->type == VIR_DOMAIN_DISK_TYPE_FILE) {
+ if (def->src != NULL && ! virFileHasSuffix(def->src, fileExt)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Image file for %s harddisk '%s' has unsupported suffix, "
- "expecting '.vmdk'"), busName, def->dst);
- return -1;
+ _("Image file for %s %s '%s' has "
+ "unsupported suffix, expecting '%s'"),
+ busType, deviceType, def->dst, fileExt);
+ return -1;
}
fileName = ctx->formatFileName(def->src, ctx->opaque);
@@ -3439,19 +3454,24 @@ virVMXFormatHardDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
}
virBufferAsprintf(buffer, "%s%d:%d.fileName = \"%s\"\n",
- entryPrefix, controllerOrBus, unit, fileName);
+ busType, controllerOrBus, unit, fileName);
VIR_FREE(fileName);
+ } else if (def->type == VIR_DOMAIN_DISK_TYPE_BLOCK) {
+ if (def->src != NULL) {
+ virBufferAsprintf(buffer, "%s%d:%d.fileName = \"%s\"\n",
+ busType, controllerOrBus, unit, def->src);
+ }
}
if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
if (def->cachemode == VIR_DOMAIN_DISK_CACHE_WRITETHRU) {
virBufferAsprintf(buffer, "%s%d:%d.writeThrough = \"true\"\n",
- entryPrefix, controllerOrBus, unit);
+ busType, controllerOrBus, unit);
} else if (def->cachemode != VIR_DOMAIN_DISK_CACHE_DEFAULT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s harddisk '%s' has unsupported cache mode '%s'"),
- busName, def->dst,
+ busType, def->dst,
virDomainDiskCacheTypeToString(def->cachemode));
return -1;
}
@@ -3460,94 +3480,6 @@ virVMXFormatHardDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
return 0;
}
-
-
-int
-virVMXFormatCDROM(virVMXContext *ctx, virDomainDiskDefPtr def,
- virBufferPtr buffer)
-{
- int controllerOrBus, unit;
- const char *busName = NULL;
- const char *entryPrefix = NULL;
- char *fileName = NULL;
-
- if (def->device != VIR_DOMAIN_DISK_DEVICE_CDROM) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid argument"));
- return -1;
- }
-
- if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
- busName = "SCSI";
- entryPrefix = "scsi";
-
- if (virVMXSCSIDiskNameToControllerAndUnit(def->dst, &controllerOrBus,
- &unit) < 0) {
- return -1;
- }
- } else if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) {
- busName = "IDE";
- entryPrefix = "ide";
-
- if (virVMXIDEDiskNameToBusAndUnit(def->dst, &controllerOrBus,
- &unit) < 0) {
- return -1;
- }
- } else {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("Unsupported bus type '%s' for cdrom"),
- virDomainDiskBusTypeToString(def->bus));
- return -1;
- }
-
- virBufferAsprintf(buffer, "%s%d:%d.present = \"true\"\n",
- entryPrefix, controllerOrBus, unit);
-
- if (def->type == VIR_DOMAIN_DISK_TYPE_FILE) {
- virBufferAsprintf(buffer, "%s%d:%d.deviceType = \"cdrom-image\"\n",
- entryPrefix, controllerOrBus, unit);
-
- if (def->src != NULL) {
- if (! virFileHasSuffix(def->src, ".iso")) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Image file for %s cdrom '%s' has unsupported "
- "suffix, expecting '.iso'"), busName, def->dst);
- return -1;
- }
-
- fileName = ctx->formatFileName(def->src, ctx->opaque);
-
- if (fileName == NULL) {
- return -1;
- }
-
- virBufferAsprintf(buffer, "%s%d:%d.fileName = \"%s\"\n",
- entryPrefix, controllerOrBus, unit, fileName);
-
- VIR_FREE(fileName);
- }
- } else if (def->type == VIR_DOMAIN_DISK_TYPE_BLOCK) {
- virBufferAsprintf(buffer, "%s%d:%d.deviceType = \"atapi-cdrom\"\n",
- entryPrefix, controllerOrBus, unit);
-
- if (def->src != NULL) {
- virBufferAsprintf(buffer, "%s%d:%d.fileName = \"%s\"\n",
- entryPrefix, controllerOrBus, unit, def->src);
- }
- } else {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("%s cdrom '%s' has unsupported type '%s', expecting '%s' "
- "or '%s'"), busName, def->dst,
- virDomainDiskTypeToString(def->type),
- virDomainDiskTypeToString(VIR_DOMAIN_DISK_TYPE_FILE),
- virDomainDiskTypeToString(VIR_DOMAIN_DISK_TYPE_BLOCK));
- return -1;
- }
-
- return 0;
-}
-
-
-
int
virVMXFormatFloppy(virVMXContext *ctx, virDomainDiskDefPtr def,
virBufferPtr buffer, bool floppy_present[2])
diff --git a/src/vmx/vmx.h b/src/vmx/vmx.h
index ec63317..cdf6b76 100644
--- a/src/vmx/vmx.h
+++ b/src/vmx/vmx.h
@@ -115,12 +115,9 @@ char *virVMXFormatConfig(virVMXContext *ctx, virDomainXMLOptionPtr xmlopt,
int virVMXFormatVNC(virDomainGraphicsDefPtr def, virBufferPtr buffer);
-int virVMXFormatHardDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
+int virVMXFormatDisk(virVMXContext *ctx, virDomainDiskDefPtr def,
virBufferPtr buffer);
-int virVMXFormatCDROM(virVMXContext *ctx, virDomainDiskDefPtr def,
- virBufferPtr buffer);
-
int virVMXFormatFloppy(virVMXContext *ctx, virDomainDiskDefPtr def,
virBufferPtr buffer, bool floppy_present[2]);
--
1.8.1.5
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