[PATCH 4/5] esx: implement connectListAllStoragePools

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Implement the .connectListAllStoragePools storage API in the esx storage
driver, and in all its subdrivers.

Signed-off-by: Pino Toscano <ptoscano@xxxxxxxxxx>
---
 src/esx/esx_storage_backend_iscsi.c | 72 +++++++++++++++++++++
 src/esx/esx_storage_backend_vmfs.c  | 98 +++++++++++++++++++++++++++++
 src/esx/esx_storage_driver.c        | 68 ++++++++++++++++++++
 3 files changed, 238 insertions(+)

diff --git a/src/esx/esx_storage_backend_iscsi.c b/src/esx/esx_storage_backend_iscsi.c
index 72ab0d3cb0..4f5d8e5e24 100644
--- a/src/esx/esx_storage_backend_iscsi.c
+++ b/src/esx/esx_storage_backend_iscsi.c
@@ -779,6 +779,77 @@ esxStorageVolGetPath(virStorageVolPtr volume)
 
 
 
+#define MATCH(FLAG) (flags & (FLAG))
+static int
+esxConnectListAllStoragePools(virConnectPtr conn,
+                              virStoragePoolPtr **pools,
+                              unsigned int flags)
+{
+    bool success = false;
+    size_t count = 0;
+    esxPrivate *priv = conn->privateData;
+    esxVI_HostInternetScsiHba *hostInternetScsiHba = NULL;
+    esxVI_HostInternetScsiHbaStaticTarget *target;
+    size_t i;
+
+    /* this driver provides only iSCSI pools */
+    if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE) &&
+        !(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ISCSI)))
+        return 0;
+
+    if (esxVI_LookupHostInternetScsiHba(priv->primary,
+                                        &hostInternetScsiHba) < 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("Unable to obtain iSCSI adapter"));
+        goto cleanup;
+    }
+
+    /* FIXME: code looks for software iSCSI adapter only */
+    if (!hostInternetScsiHba) {
+        /* iSCSI adapter may not be enabled for this host */
+        return 0;
+    }
+
+    /*
+     * ESX has two kind of targets:
+     * 1. staticIscsiTargets
+     * 2. dynamicIscsiTargets
+     * For each dynamic target if its reachable a static target is added.
+     * return iSCSI names for all static targets to avoid duplicate names.
+     */
+    for (target = hostInternetScsiHba->configuredStaticTarget;
+         target; target = target->_next) {
+        virStoragePoolPtr pool;
+
+        pool = targetToStoragePool(conn, target->iScsiName, target);
+        if (!pool)
+            goto cleanup;
+
+        if (VIR_APPEND_ELEMENT(*pools, count, pool) < 0)
+            goto cleanup;
+    }
+
+    success = true;
+
+ cleanup:
+    if (! success) {
+        if (*pools) {
+            for (i = 0; i < count; ++i)
+                VIR_FREE((*pools)[i]);
+            VIR_FREE(*pools);
+        }
+
+        count = -1;
+    }
+
+    esxVI_HostInternetScsiHba_Free(&hostInternetScsiHba);
+
+    return count;
+}
+#undef MATCH
+
+
+
 virStorageDriver esxStorageBackendISCSI = {
     .connectNumOfStoragePools = esxConnectNumOfStoragePools, /* 1.0.1 */
     .connectListStoragePools = esxConnectListStoragePools, /* 1.0.1 */
@@ -799,4 +870,5 @@ virStorageDriver esxStorageBackendISCSI = {
     .storageVolDelete = esxStorageVolDelete, /* 1.0.1 */
     .storageVolWipe = esxStorageVolWipe, /* 1.0.1 */
     .storageVolGetPath = esxStorageVolGetPath, /* 1.0.1 */
+    .connectListAllStoragePools = esxConnectListAllStoragePools, /* 5.10.0 */
 };
diff --git a/src/esx/esx_storage_backend_vmfs.c b/src/esx/esx_storage_backend_vmfs.c
index b890825a40..05b273aed7 100644
--- a/src/esx/esx_storage_backend_vmfs.c
+++ b/src/esx/esx_storage_backend_vmfs.c
@@ -1460,6 +1460,103 @@ esxStorageVolGetPath(virStorageVolPtr volume)
 
 
 
+#define MATCH(FLAG) (flags & (FLAG))
+static int
+esxConnectListAllStoragePools(virConnectPtr conn,
+                              virStoragePoolPtr **pools,
+                              unsigned int flags)
+{
+    bool success = false;
+    esxPrivate *priv = conn->privateData;
+    esxVI_String *propertyNameList = NULL;
+    esxVI_DynamicProperty *dynamicProperty = NULL;
+    esxVI_ObjectContent *datastoreList = NULL;
+    esxVI_ObjectContent *datastore = NULL;
+    size_t count = 0;
+    size_t i;
+    virStoragePoolPtr pool;
+    const bool checkPoolType = MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE);
+
+    if (esxVI_String_AppendValueToList(&propertyNameList,
+                                       "summary.name") < 0) {
+        goto cleanup;
+    }
+
+    if (checkPoolType &&
+        esxVI_String_AppendValueToList(&propertyNameList,
+                                       "info") < 0) {
+        goto cleanup;
+    }
+
+    if (esxVI_LookupDatastoreList(priv->primary, propertyNameList,
+                                  &datastoreList) < 0) {
+        goto cleanup;
+    }
+
+    for (datastore = datastoreList; datastore;
+         datastore = datastore->_next) {
+        const char *name = NULL;
+
+        for (dynamicProperty = datastore->propSet; dynamicProperty;
+             dynamicProperty = dynamicProperty->_next) {
+            if (STREQ(dynamicProperty->name, "summary.name")) {
+                if (esxVI_AnyType_ExpectType(dynamicProperty->val,
+                                             esxVI_Type_String) < 0) {
+                    goto cleanup;
+                }
+
+                name = dynamicProperty->val->string;
+            }
+        }
+
+        if (!name)
+            goto cleanup;
+
+        if (checkPoolType) {
+            int poolType;
+
+            if (datastorePoolType(datastore, &poolType) < 0)
+                goto cleanup;
+
+            if (!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_DIR) &&
+                   (poolType == VIR_STORAGE_POOL_DIR))     ||
+                  (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FS) &&
+                   (poolType == VIR_STORAGE_POOL_FS))      ||
+                  (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_NETFS) &&
+                   (poolType == VIR_STORAGE_POOL_NETFS))))
+                continue;
+        }
+
+        pool = datastoreToStoragePoolPtr(conn, name, datastore);
+        if (!pool)
+            goto cleanup;
+
+        if (VIR_APPEND_ELEMENT(*pools, count, pool) < 0)
+            goto cleanup;
+    }
+
+    success = true;
+
+ cleanup:
+    if (! success) {
+        if (*pools) {
+            for (i = 0; i < count; ++i)
+                VIR_FREE((*pools)[i]);
+            VIR_FREE(*pools);
+        }
+
+        count = -1;
+    }
+
+    esxVI_String_Free(&propertyNameList);
+    esxVI_ObjectContent_Free(&datastoreList);
+
+    return count;
+}
+#undef MATCH
+
+
+
 virStorageDriver esxStorageBackendVMFS = {
     .connectNumOfStoragePools = esxConnectNumOfStoragePools, /* 0.8.2 */
     .connectListStoragePools = esxConnectListStoragePools, /* 0.8.2 */
@@ -1480,4 +1577,5 @@ virStorageDriver esxStorageBackendVMFS = {
     .storageVolGetInfo = esxStorageVolGetInfo, /* 0.8.4 */
     .storageVolGetXMLDesc = esxStorageVolGetXMLDesc, /* 0.8.4 */
     .storageVolGetPath = esxStorageVolGetPath, /* 0.8.4 */
+    .connectListAllStoragePools = esxConnectListAllStoragePools, /* 5.10.0 */
 };
diff --git a/src/esx/esx_storage_driver.c b/src/esx/esx_storage_driver.c
index 8a34732b45..6d17ac28ea 100644
--- a/src/esx/esx_storage_driver.c
+++ b/src/esx/esx_storage_driver.c
@@ -517,6 +517,73 @@ esxStoragePoolIsPersistent(virStoragePoolPtr pool G_GNUC_UNUSED)
 
 
 
+#define MATCH(FLAG) (flags & (FLAG))
+static int
+esxConnectListAllStoragePools(virConnectPtr conn,
+                              virStoragePoolPtr **pools,
+                              unsigned int flags)
+{
+    bool success = false;
+    esxPrivate *priv = conn->privateData;
+    size_t count = 0;
+    size_t i, j;
+    int tmp;
+
+    virCheckFlags(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ALL, -1);
+
+    /*
+     * ESX storage pools are always active, persistent, and
+     * autostarted, so return zero elements in case we are asked
+     * for pools different than that.
+     *
+     * Filtering by type will be done by each backend.
+     */
+    if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) &&
+        !(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE)))
+        return 0;
+    if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_PERSISTENT) &&
+        !(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT)))
+        return 0;
+    if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_AUTOSTART) &&
+        !(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_AUTOSTART)))
+        return 0;
+
+    if (esxVI_EnsureSession(priv->primary) < 0)
+        return -1;
+
+    for (i = 0; i < LAST_BACKEND; ++i) {
+        virStoragePoolPtr *new_pools = 0;
+        tmp = backends[i]->connectListAllStoragePools(conn, &new_pools, flags);
+
+        if (tmp < 0)
+            goto cleanup;
+
+        for (j = 0; j < tmp; ++j) {
+            if (VIR_APPEND_ELEMENT(*pools, count, new_pools[j]) < 0)
+                goto cleanup;
+        }
+        VIR_FREE(new_pools);
+    }
+
+    success = true;
+
+ cleanup:
+    if (! success) {
+        if (*pools) {
+            for (i = 0; i < count; ++i)
+                VIR_FREE((*pools)[i]);
+            VIR_FREE(*pools);
+        }
+
+        count = -1;
+    }
+
+    return count;
+}
+#undef MATCH
+
+
+
 virStorageDriver esxStorageDriver = {
     .connectNumOfStoragePools = esxConnectNumOfStoragePools, /* 0.8.2 */
     .connectListStoragePools = esxConnectListStoragePools, /* 0.8.2 */
@@ -544,4 +611,5 @@ virStorageDriver esxStorageDriver = {
     .storageVolGetPath = esxStorageVolGetPath, /* 0.8.4 */
     .storagePoolIsActive = esxStoragePoolIsActive, /* 0.8.2 */
     .storagePoolIsPersistent = esxStoragePoolIsPersistent, /* 0.8.2 */
+    .connectListAllStoragePools = esxConnectListAllStoragePools, /* 5.10.0 */
 };
-- 
2.21.0

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