static bool
cmdVolResize(vshControl *ctl, const vshCmd *cmd)
{
virStorageVolPtr vol;
const char *capacityStr = NULL;
unsigned long long capacity = 0;
unsigned int flags = 0;
bool ret = false;
bool delta = false;
if (vshCommandOptBool(cmd, "allocate"))
flags |= VIR_STORAGE_VOL_RESIZE_ALLOCATE;
if (vshCommandOptBool(cmd, "delta")) {
delta = true;
flags |= VIR_STORAGE_VOL_RESIZE_DELTA;
}
if (vshCommandOptBool(cmd, "shrink"))
flags |= VIR_STORAGE_VOL_RESIZE_SHRINK;
if (!(vol = vshCommandOptVol(ctl, cmd, "vol", "pool", NULL)))
return false;
if (vshCommandOptStringReq(ctl, cmd, "capacity", &capacityStr) < 0)
goto cleanup;
virSkipSpaces(&capacityStr);
if (*capacityStr == '-') {
/* The API always requires a positive value; but we allow a
* negative value for convenience. */
if (delta && vshCommandOptBool(cmd, "shrink")){
capacityStr++;
} else {
vshError(ctl, "%s",
_("negative size requires --delta and --shrink"));
goto cleanup;
}
}
if (vshVolSize(capacityStr, &capacity) < 0) {
vshError(ctl, _("Malformed size %s"), capacityStr);
goto cleanup;
}
if (virStorageVolResize(vol, capacity, flags) == 0) {
vshPrint(ctl,
delta ? _("Size of volume '%s' successfully changed by %s\n")
: _("Size of volume '%s' successfully changed to %s\n"),
virStorageVolGetName(vol), capacityStr);
ret = true;
} else {
vshError(ctl,
delta ? _("Failed to change size of volume '%s' by %s\n")
: _("Failed to change size of volume '%s' to %s\n"),
virStorageVolGetName(vol), capacityStr);
ret = false;
}
cleanup:
virStorageVolFree(vol);
return ret;
}
static bool
cmdVolCreateAs(vshControl *ctl, const vshCmd *cmd)
{
virStoragePoolPtr pool;
virStorageVolPtr vol;
char *xml;
const char *name, *capacityStr = NULL, *allocationStr = NULL, *format = NULL;
const char *snapshotStrVol = NULL, *snapshotStrFormat = NULL;
unsigned long long capacity, allocation = 0;
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(pool = vshCommandOptPoolBy(ctl, cmd, "pool", NULL,
VSH_BYNAME)))
return false;
if (vshCommandOptString(cmd, "name", &name) <= 0)
goto cleanup;
if (vshCommandOptString(cmd, "capacity", &capacityStr) <= 0)
goto cleanup;
if (vshVolSize(capacityStr, &capacity) < 0) {
vshError(ctl, _("Malformed size %s"), capacityStr);
goto cleanup;
}
if (vshCommandOptString(cmd, "allocation", &allocationStr) > 0 &&
vshVolSize(allocationStr, &allocation) < 0) {
vshError(ctl, _("Malformed size %s"), allocationStr);
goto cleanup;
}
if (vshCommandOptString(cmd, "format", &format) < 0 ||
vshCommandOptString(cmd, "backing-vol", &snapshotStrVol) < 0 ||
vshCommandOptString(cmd, "backing-vol-format",
&snapshotStrFormat) < 0) {
vshError(ctl, "%s", _("missing argument"));
goto cleanup;
}
virBufferAddLit(&buf, "<volume>\n");
virBufferAsprintf(&buf, " <name>%s</name>\n", name);
virBufferAsprintf(&buf, " <capacity>%llu</capacity>\n", capacity);
if (allocationStr)
virBufferAsprintf(&buf, " <allocation>%llu</allocation>\n", allocation);
if (format) {
virBufferAddLit(&buf, " <target>\n");
virBufferAsprintf(&buf, " <format type='%s'/>\n",format);
virBufferAddLit(&buf, " </target>\n");
}
/* Convert the snapshot parameters into backingStore XML */
if (snapshotStrVol) {
/* Lookup snapshot backing volume. Try the backing-vol
* parameter as a name */
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Look up backing store volume '%s' as name\n",
cmd->def->name, snapshotStrVol);
virStorageVolPtr snapVol = virStorageVolLookupByName(pool, snapshotStrVol);
if (snapVol)
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Backing store volume found using '%s' as name\n",
cmd->def->name, snapshotStrVol);
if (snapVol == NULL) {
/* Snapshot backing volume not found by name. Try the
* backing-vol parameter as a key */
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Look up backing store volume '%s' as key\n",
cmd->def->name, snapshotStrVol);
snapVol = virStorageVolLookupByKey(ctl->conn, snapshotStrVol);
if (snapVol)
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Backing store volume found using '%s' as key\n",
cmd->def->name, snapshotStrVol);
}
if (snapVol == NULL) {
/* Snapshot backing volume not found by key. Try the
* backing-vol parameter as a path */
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Look up backing store volume '%s' as path\n",
cmd->def->name, snapshotStrVol);
snapVol = virStorageVolLookupByPath(ctl->conn, snapshotStrVol);
if (snapVol)
vshDebug(ctl, VSH_ERR_DEBUG,
"%s: Backing store volume found using '%s' as path\n",
cmd->def->name, snapshotStrVol);
}
if (snapVol == NULL) {
vshError(ctl, _("failed to get vol '%s'"), snapshotStrVol);
goto cleanup;
}
char *snapshotStrVolPath;
if ((snapshotStrVolPath = virStorageVolGetPath(snapVol)) == NULL) {
virStorageVolFree(snapVol);
goto cleanup;
}
/* Create XML for the backing store */
virBufferAddLit(&buf, " <backingStore>\n");
virBufferAsprintf(&buf, " <path>%s</path>\n",snapshotStrVolPath);
if (snapshotStrFormat)
virBufferAsprintf(&buf, " <format type='%s'/>\n",snapshotStrFormat);
virBufferAddLit(&buf, " </backingStore>\n");
/* Cleanup snapshot allocations */
VIR_FREE(snapshotStrVolPath);
virStorageVolFree(snapVol);
}
virBufferAddLit(&buf, "</volume>\n");
if (virBufferError(&buf)) {
vshPrint(ctl, "%s", _("Failed to allocate XML buffer"));
goto cleanup;
}
xml = virBufferContentAndReset(&buf);
vol = virStorageVolCreateXML(pool, xml, 0);
VIR_FREE(xml);
virStoragePoolFree(pool);
if (vol != NULL) {
vshPrint(ctl, _("Vol %s created\n"), name);
virStorageVolFree(vol);
return true;
} else {
vshError(ctl, _("Failed to create vol %s"), name);
return false;
}
cleanup:
virBufferFreeAndReset(&buf);
virStoragePoolFree(pool);
return false;
}
