[Libvirt-cim] [PATCH]
Richard Maciel
rmaciel at linux.vnet.ibm.com
Tue Mar 10 23:26:01 UTC 2009
# HG changeset patch
# User Richard Maciel <rmaciel at linux.vnet.ibm.com>
# Date 1236119796 10800
# Node ID 98c21125d5e24022750fa1adf12289bbbbb5a9df
# Parent 1aff0d0e9bf49e738827b7157c0df407b814ae7d
#2 Changed the output of AllocationCapability association when using DiskPool as input
This patch fix the results of a 'association instances' query when passing a disk pool AllocationCapabilities reference as input. Before this patch, this query returned RASD templates for the disk pools, but now it returns the RASD templates for each of the volumes which composes the disk pool passed as input.
2:
- Changed code style based on feedback
- When emulation_type = 1 (cdrom device), the VirtualQuantity property of the template is not set
- Changed ID of cdrom device
- LXC is handled in a special way, because it doesn't have volumes
To test:
- Create a domain containing a diskpool and some volumes
- Execute query: wbemcli ein 'http://localhost:5988/root/virt:CIM_AllocationCapabilities'
- Select the reference to a diskpool and use in an association query like the one below:
wbemcli ai -nl -ac KVM_SettingsDefineCapabilities 'http://@localhost:5988/root/virt:KVM_AllocationCapabilities.InstanceID="DiskPool/default"'
- There must be four templates for each volume in the diskpool (MINIMUM, MAXIMUM, DEFAULT, INCREMENT) and their address must correspond to the address of the volume
Signed-off-by: Richard Maciel <rmaciel at linux.vnet.ibm.com>
diff -r 1aff0d0e9bf4 -r 98c21125d5e2 src/Virt_SettingsDefineCapabilities.c
--- a/src/Virt_SettingsDefineCapabilities.c Wed Mar 04 15:25:33 2009 -0800
+++ b/src/Virt_SettingsDefineCapabilities.c Tue Mar 03 19:36:36 2009 -0300
@@ -562,71 +562,23 @@
return s;
}
-static int get_disk_freespace(const CMPIObjectPath *ref,
- CMPIStatus *s,
- uint64_t *free_space)
-{
- bool ret = false;
- const char *inst_id;
- CMPIrc prop_ret;
- virConnectPtr conn;
- CMPIInstance *pool_inst;
-
- if (cu_get_str_path(ref, "InstanceID", &inst_id) != CMPI_RC_OK) {
- cu_statusf(_BROKER, s,
- CMPI_RC_ERR_FAILED,
- "Could not get InstanceID");
- goto out;
- }
-
- conn = connect_by_classname(_BROKER, CLASSNAME(ref), s);
- if (s->rc != CMPI_RC_OK) {
- cu_statusf(_BROKER, s,
- CMPI_RC_ERR_FAILED,
- "Could not get connection");
- goto out;
- }
-
- /* Getting the relevant resource pool directly finds the free space
- * for us. It is in the Capacity field. */
- *s = get_pool_by_name(_BROKER, ref, inst_id, &pool_inst);
- if (s->rc != CMPI_RC_OK)
- goto out;
-
- prop_ret = cu_get_u64_prop(pool_inst, "Capacity", free_space);
- if (prop_ret != CMPI_RC_OK) {
- cu_statusf(_BROKER, s,
- CMPI_RC_ERR_FAILED,
- "Could not get capacity from instance");
- goto out;
- }
-
- CU_DEBUG("Got capacity from pool_inst: %lld", *free_space);
- ret = true;
-
- out:
- return ret;
-}
-
static CMPIStatus set_disk_props(int type,
const CMPIObjectPath *ref,
const char *id,
+ const char *disk_path,
uint64_t disk_size,
uint16_t emu_type,
struct inst_list *list)
{
- const char *addr;
const char *dev;
CMPIInstance *inst;
CMPIStatus s = {CMPI_RC_OK, NULL};
if (type == DOMAIN_LXC) {
- addr = "/tmp";
dev = "/lxc_mnt/tmp";
}
else {
dev = "hda";
- addr = "/dev/null";
}
inst = sdc_rasd_inst(&s, ref, CIM_RES_TYPE_DISK);
@@ -636,13 +588,15 @@
CMSetProperty(inst, "InstanceID", (CMPIValue *)id, CMPI_chars);
CMSetProperty(inst, "AllocationQuantity",
(CMPIValue *)"MegaBytes", CMPI_chars);
- CMSetProperty(inst, "VirtualQuantity",
- (CMPIValue *)&disk_size, CMPI_uint64);
- CMSetProperty(inst, "Address", (CMPIValue *)addr, CMPI_chars);
+ CMSetProperty(inst, "Address", (CMPIValue *)disk_path, CMPI_chars);
if (type == DOMAIN_LXC)
CMSetProperty(inst, "MountPoint", (CMPIValue *)dev, CMPI_chars);
else {
+ if (emu_type == 0)
+ CMSetProperty(inst, "VirtualQuantity",
+ (CMPIValue *)&disk_size, CMPI_uint64);
+
if (type == DOMAIN_XENPV) {
dev = "xvda";
CMSetProperty(inst, "Caption",
@@ -664,34 +618,116 @@
return s;
}
-static CMPIStatus disk_template(const CMPIObjectPath *ref,
- int template_type,
- struct inst_list *list)
+static CMPIStatus cdrom_template(const CMPIObjectPath *ref,
+ int template_type,
+ struct inst_list *list)
{
- bool ret;
char *pfx;
const char *id;
- uint64_t disk_size;
- uint16_t emu_type = 0;
+ char *vol_path;
+ uint64_t vol_size = 0;
CMPIStatus s = {CMPI_RC_OK, NULL};
+ uint16_t emu_type = 1;
switch(template_type) {
case SDC_RASD_MIN:
- disk_size = SDC_DISK_MIN;
+ id = "Minimum CDROM";
+ break;
+ case SDC_RASD_MAX:
+ id = "Maximum CDROM";
+ break;
+ case SDC_RASD_INC:
+ id = "Increment CDROM";
+ break;
+ case SDC_RASD_DEF:
+ id = "Default CDROM";
+ break;
+ default:
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unsupported sdc_rasd type");
+ goto out;
+ }
+
+ vol_path = "/dev/null";
+
+ pfx = class_prefix_name(CLASSNAME(ref));
+
+ if (STREQ(pfx, "Xen")) {
+ int xen_type[2] = {DOMAIN_XENFV, DOMAIN_XENPV};
+ int i = 0;
+
+ for (; i < 2; i++) {
+ s = set_disk_props(xen_type[i],
+ ref,
+ id,
+ vol_path,
+ vol_size,
+ emu_type,
+ list);
+ }
+ } else if (STREQ(pfx, "KVM")) {
+ s = set_disk_props(DOMAIN_KVM,
+ ref,
+ id,
+ vol_path,
+ vol_size,
+ emu_type,
+ list);
+
+ } else if (!STREQ(pfx, "LXC")){
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unsupported virtualization type");
+ }
+
+ out:
+ return s;
+
+}
+
+
+static CMPIStatus volume_template(const CMPIObjectPath *ref,
+ int template_type,
+ virStorageVolPtr volume_ptr,
+ struct inst_list *list)
+{
+ char *pfx;
+ const char *id;
+ char *vol_path;
+ uint64_t vol_size;
+ virStorageVolInfo vol_info;
+ CMPIStatus s = {CMPI_RC_OK, NULL};
+ int ret;
+ uint16_t emu_type = 0;
+
+ ret = virStorageVolGetInfo(volume_ptr, &vol_info);
+ if (ret == -1) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ virStorageVolGetConnect(volume_ptr),
+ "Unable to get volume information");
+ goto out;
+ }
+
+ switch(template_type) {
+ case SDC_RASD_MIN:
+ if (SDC_DISK_MIN > (uint64_t)vol_info.capacity)
+ vol_size = (uint64_t)vol_info.capacity;
+ else
+ vol_size = SDC_DISK_MIN;
id = "Minimum";
break;
case SDC_RASD_MAX:
- ret = get_disk_freespace(ref, &s, &disk_size);
- if (!ret)
- goto out;
+ vol_size = (uint64_t)vol_info.capacity;
id = "Maximum";
break;
case SDC_RASD_INC:
- disk_size = SDC_DISK_INC;
+ vol_size = SDC_DISK_INC;
id = "Increment";
break;
case SDC_RASD_DEF:
- disk_size = SDC_DISK_DEF;
+ vol_size = (uint64_t)vol_info.allocation;
id = "Default";
break;
default:
@@ -701,6 +737,15 @@
goto out;
}
+ vol_path = virStorageVolGetPath(volume_ptr);
+ if (vol_path == NULL) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ virStorageVolGetConnect(volume_ptr),
+ "Unable to get volume path");
+ goto out;
+ }
+
pfx = class_prefix_name(CLASSNAME(ref));
if (STREQ(pfx, "Xen")) {
@@ -708,48 +753,20 @@
int i = 0;
for (; i < 2; i++) {
- emu_type = 0;
s = set_disk_props(xen_type[i],
ref,
- id,
- disk_size,
+ id,
+ vol_path,
+ vol_size,
emu_type,
list);
- if (s.rc != CMPI_RC_OK)
- goto out;
-
- emu_type = 1;
- s = set_disk_props(xen_type[i],
- ref,
- id,
- disk_size,
- emu_type,
- list);
- if (s.rc != CMPI_RC_OK)
- goto out;
}
} else if (STREQ(pfx, "KVM")) {
s = set_disk_props(DOMAIN_KVM,
ref,
- id,
- disk_size,
- emu_type,
- list);
- if (s.rc != CMPI_RC_OK)
- goto out;
-
- emu_type = 1;
- s = set_disk_props(DOMAIN_KVM,
- ref,
- id,
- disk_size,
- emu_type,
- list);
- } else if (STREQ(pfx, "LXC")) {
- s = set_disk_props(DOMAIN_LXC,
- ref,
- id,
- disk_size,
+ id,
+ vol_path,
+ vol_size,
emu_type,
list);
} else {
@@ -762,6 +779,157 @@
return s;
}
+static CMPIStatus lxc_template(const CMPIObjectPath *ref,
+ int template_type,
+ struct inst_list *list)
+{
+ uint64_t vol_size = 0;
+ int emu_type = 0;
+ char *vol_path = "/tmp";
+ const char *id;
+
+ CMPIStatus s = {CMPI_RC_OK, NULL};
+
+ switch(template_type) {
+ case SDC_RASD_MIN:
+ id = "Minimum";
+ break;
+ case SDC_RASD_MAX:
+ id = "Maximum";
+ break;
+ case SDC_RASD_INC:
+ id = "Increment";
+ break;
+ case SDC_RASD_DEF:
+ id = "Default";
+ break;
+ default:
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unsupported sdc_rasd type");
+ goto out;
+ }
+
+ s = set_disk_props(DOMAIN_LXC,
+ ref,
+ id,
+ vol_path,
+ vol_size,
+ emu_type,
+ list);
+
+ out:
+ return s;
+
+}
+
+static CMPIStatus disk_template(const CMPIObjectPath *ref,
+ int template_type,
+ struct inst_list *list)
+{
+ CMPIStatus s = {CMPI_RC_OK, NULL};
+ virConnectPtr conn = NULL;
+ virStoragePoolPtr poolptr = NULL;
+ virStorageVolPtr volptr = NULL;
+ const char *instid = NULL;
+ char *host = NULL;
+ const char *poolname = NULL;
+ char **volnames = NULL;
+ int numvols = 0;
+ int numvolsret = 0;
+ int i;
+ char *pfx = NULL;
+
+ pfx = class_prefix_name(CLASSNAME(ref));
+ if (STREQ(pfx, "LXC")) {
+ s = lxc_template(ref, template_type, list);
+ goto out;
+ }
+
+ conn = connect_by_classname(_BROKER, CLASSNAME(ref), &s);
+
+ if (cu_get_str_path(ref, "InstanceID", &instid) != CMPI_RC_OK) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unable to get InstanceID for disk device");
+ goto out;
+ }
+
+ if (parse_fq_devid(instid, &host, (char **)&poolname) != 1) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unable to get pool device id");
+ goto out;
+ }
+
+ if ((poolptr = virStoragePoolLookupByName(conn, poolname)) == NULL) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_NOT_FOUND,
+ conn,
+ "Storage pool `%s' not found",
+ poolname);
+ goto out;
+ }
+
+ if ((numvols = virStoragePoolNumOfVolumes(poolptr)) == -1) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ conn,
+ "Unable to get the number of volumes \
+ of storage pool `%s'",
+ poolname);
+ goto out;
+ }
+
+ volnames = (char **)malloc(sizeof(char *) * numvols);
+ if (volnames == NULL) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Could not allocate space for list of volumes \
+ of storage pool `%s'",
+ poolname);
+ goto out;
+ }
+
+ numvolsret = virStoragePoolListVolumes(poolptr, volnames, numvols);
+
+ if (numvolsret == -1) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ conn,
+ "Unable to get a pointer to volumes \
+ of storage pool `%s'",
+ poolname);
+ goto out;
+ }
+
+ for (i = 0; i < numvolsret; i++) {
+ volptr = virStorageVolLookupByName(poolptr, volnames[i]);
+ if (volptr == NULL) {
+ virt_set_status(_BROKER, &s,
+ CMPI_RC_ERR_NOT_FOUND,
+ conn,
+ "Storage Volume `%s' not found",
+ volnames[i]);
+ goto out;
+ }
+
+ s = volume_template(ref, template_type, volptr, list);
+ if (s.rc != CMPI_RC_OK)
+ goto out;
+ }
+
+ s = cdrom_template(ref, template_type, list);
+
+ out:
+ free(volnames);
+ virStorageVolFree(volptr);
+ virStoragePoolFree(poolptr);
+ virConnectClose(conn);
+
+ return s;
+}
+
static CMPIStatus graphics_template(const CMPIObjectPath *ref,
int template_type,
struct inst_list *list)
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