|
| 1 | +package cim |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "strconv" |
| 6 | + |
| 7 | + "github.com/microsoft/wmi/pkg/base/query" |
| 8 | + cim "github.com/microsoft/wmi/pkg/wmiinstance" |
| 9 | + "github.com/microsoft/wmi/server2019/root/microsoft/windows/storage" |
| 10 | +) |
| 11 | + |
| 12 | +// ListISCSITargetPortals retrieves a list of iSCSI target portals. |
| 13 | +func ListISCSITargetPortals(selectorList []string) ([]*storage.MSFT_iSCSITargetPortal, error) { |
| 14 | + q := query.NewWmiQueryWithSelectList("MSFT_IscsiTargetPortal", selectorList) |
| 15 | + instances, err := QueryInstances(WMINamespaceStorage, q) |
| 16 | + if IgnoreNotFound(err) != nil { |
| 17 | + return nil, err |
| 18 | + } |
| 19 | + |
| 20 | + var targetPortals []*storage.MSFT_iSCSITargetPortal |
| 21 | + for _, instance := range instances { |
| 22 | + portal, err := storage.NewMSFT_iSCSITargetPortalEx1(instance) |
| 23 | + if err != nil { |
| 24 | + return nil, fmt.Errorf("failed to query iSCSI target portal %v. error: %v", instance, err) |
| 25 | + } |
| 26 | + |
| 27 | + targetPortals = append(targetPortals, portal) |
| 28 | + } |
| 29 | + |
| 30 | + return targetPortals, nil |
| 31 | +} |
| 32 | + |
| 33 | +// QueryISCSITargetPortal retrieves information about a specific iSCSI target portal |
| 34 | +// identified by its network address and port number. |
| 35 | +func QueryISCSITargetPortal(address string, port uint32, selectorList []string) (*storage.MSFT_iSCSITargetPortal, error) { |
| 36 | + portalQuery := query.NewWmiQueryWithSelectList( |
| 37 | + "MSFT_iSCSITargetPortal", selectorList, |
| 38 | + "TargetPortalAddress", address, |
| 39 | + "TargetPortalPortNumber", strconv.Itoa(int(port))) |
| 40 | + instances, err := QueryInstances(WMINamespaceStorage, portalQuery) |
| 41 | + if err != nil { |
| 42 | + return nil, err |
| 43 | + } |
| 44 | + |
| 45 | + targetPortal, err := storage.NewMSFT_iSCSITargetPortalEx1(instances[0]) |
| 46 | + if err != nil { |
| 47 | + return nil, fmt.Errorf("failed to query iSCSI target portal at (%s:%d). error: %v", address, port, err) |
| 48 | + } |
| 49 | + |
| 50 | + return targetPortal, nil |
| 51 | +} |
| 52 | + |
| 53 | +// NewISCSITargetPortal creates a new iSCSI target portal. |
| 54 | +func NewISCSITargetPortal(targetPortalAddress string, |
| 55 | + targetPortalPortNumber uint32, |
| 56 | + initiatorInstanceName *string, |
| 57 | + initiatorPortalAddress *string, |
| 58 | + isHeaderDigest *bool, |
| 59 | + isDataDigest *bool) (*storage.MSFT_iSCSITargetPortal, error) { |
| 60 | + params := map[string]interface{}{ |
| 61 | + "TargetPortalAddress": targetPortalAddress, |
| 62 | + "TargetPortalPortNumber": targetPortalPortNumber, |
| 63 | + } |
| 64 | + if initiatorInstanceName != nil { |
| 65 | + params["InitiatorInstanceName"] = *initiatorInstanceName |
| 66 | + } |
| 67 | + if initiatorPortalAddress != nil { |
| 68 | + params["InitiatorPortalAddress"] = *initiatorPortalAddress |
| 69 | + } |
| 70 | + if isHeaderDigest != nil { |
| 71 | + params["IsHeaderDigest"] = *isHeaderDigest |
| 72 | + } |
| 73 | + if isDataDigest != nil { |
| 74 | + params["IsDataDigest"] = *isDataDigest |
| 75 | + } |
| 76 | + result, _, err := InvokeCimMethod(WMINamespaceStorage, "MSFT_iSCSITargetPortal", "New", params) |
| 77 | + if err != nil { |
| 78 | + return nil, fmt.Errorf("failed to create iSCSI target portal with %v. result: %d, error: %v", params, result, err) |
| 79 | + } |
| 80 | + |
| 81 | + return QueryISCSITargetPortal(targetPortalAddress, targetPortalPortNumber, nil) |
| 82 | +} |
| 83 | + |
| 84 | +var ( |
| 85 | + // Indexes iSCSI targets by their Object ID specified in node address |
| 86 | + mappingISCSITargetIndexer = mappingObjectRefIndexer("iSCSITarget", "MSFT_iSCSITarget", "NodeAddress") |
| 87 | + // Indexes iSCSI target portals by their Object ID specified in portal address |
| 88 | + mappingISCSITargetPortalIndexer = mappingObjectRefIndexer("iSCSITargetPortal", "MSFT_iSCSITargetPortal", "TargetPortalAddress") |
| 89 | + // Indexes iSCSI connections by their Object ID specified in connection identifier |
| 90 | + mappingISCSIConnectionIndexer = mappingObjectRefIndexer("iSCSIConnection", "MSFT_iSCSIConnection", "ConnectionIdentifier") |
| 91 | + // Indexes iSCSI sessions by their Object ID specified in session identifier |
| 92 | + mappingISCSISessionIndexer = mappingObjectRefIndexer("iSCSISession", "MSFT_iSCSISession", "SessionIdentifier") |
| 93 | + |
| 94 | + // Indexes iSCSI targets by their node address |
| 95 | + iscsiTargetIndexer = stringPropertyIndexer("NodeAddress") |
| 96 | + // Indexes iSCSI targets by their target portal address |
| 97 | + iscsiTargetPortalIndexer = stringPropertyIndexer("TargetPortalAddress") |
| 98 | + // Indexes iSCSI connections by their connection identifier |
| 99 | + iscsiConnectionIndexer = stringPropertyIndexer("ConnectionIdentifier") |
| 100 | + // Indexes iSCSI sessions by their session identifier |
| 101 | + iscsiSessionIndexer = stringPropertyIndexer("SessionIdentifier") |
| 102 | +) |
| 103 | + |
| 104 | +// ListISCSITargetToISCSITargetPortalMapping builds a mapping between iSCSI target and iSCSI target portal with iSCSI target as the key. |
| 105 | +func ListISCSITargetToISCSITargetPortalMapping() (map[string]string, error) { |
| 106 | + return ListWMIInstanceMappings(WMINamespaceStorage, "MSFT_iSCSITargetToiSCSITargetPortal", nil, mappingISCSITargetIndexer, mappingISCSITargetPortalIndexer) |
| 107 | +} |
| 108 | + |
| 109 | +// ListISCSIConnectionToISCSITargetMapping builds a mapping between iSCSI connection and iSCSI target with iSCSI connection as the key. |
| 110 | +func ListISCSIConnectionToISCSITargetMapping() (map[string]string, error) { |
| 111 | + return ListWMIInstanceMappings(WMINamespaceStorage, "MSFT_iSCSITargetToiSCSIConnection", nil, mappingISCSIConnectionIndexer, mappingISCSITargetIndexer) |
| 112 | +} |
| 113 | + |
| 114 | +// ListISCSISessionToISCSITargetMapping builds a mapping between iSCSI session and iSCSI target with iSCSI session as the key. |
| 115 | +func ListISCSISessionToISCSITargetMapping() (map[string]string, error) { |
| 116 | + return ListWMIInstanceMappings(WMINamespaceStorage, "MSFT_iSCSITargetToiSCSISession", nil, mappingISCSISessionIndexer, mappingISCSITargetIndexer) |
| 117 | +} |
| 118 | + |
| 119 | +// ListDiskToISCSIConnectionMapping builds a mapping between disk and iSCSI connection with disk Object ID as the key. |
| 120 | +func ListDiskToISCSIConnectionMapping() (map[string]string, error) { |
| 121 | + return ListWMIInstanceMappings(WMINamespaceStorage, "MSFT_iSCSIConnectionToDisk", nil, mappingObjectRefIndexer("Disk", "MSFT_Disk", "ObjectId"), mappingISCSIConnectionIndexer) |
| 122 | +} |
| 123 | + |
| 124 | +// ListISCSITargetsByTargetPortalWithFilters retrieves all iSCSI targets from the specified iSCSI target portal and conditions by query filters. |
| 125 | +func ListISCSITargetsByTargetPortalWithFilters(targetSelectorList []string, portals []*storage.MSFT_iSCSITargetPortal, filters ...*query.WmiQueryFilter) ([]*storage.MSFT_iSCSITarget, error) { |
| 126 | + targetQuery := query.NewWmiQueryWithSelectList("MSFT_iSCSITarget", targetSelectorList) |
| 127 | + targetQuery.Filters = append(targetQuery.Filters, filters...) |
| 128 | + instances, err := QueryInstances(WMINamespaceStorage, targetQuery) |
| 129 | + if err != nil { |
| 130 | + return nil, err |
| 131 | + } |
| 132 | + |
| 133 | + var portalInstances []*cim.WmiInstance |
| 134 | + for _, portal := range portals { |
| 135 | + portalInstances = append(portalInstances, portal.WmiInstance) |
| 136 | + } |
| 137 | + |
| 138 | + targetToTargetPortalMapping, err := ListISCSITargetToISCSITargetPortalMapping() |
| 139 | + if err != nil { |
| 140 | + return nil, err |
| 141 | + } |
| 142 | + |
| 143 | + targetInstances, err := FindInstancesByMapping(instances, iscsiTargetIndexer, portalInstances, iscsiTargetPortalIndexer, targetToTargetPortalMapping) |
| 144 | + if err != nil { |
| 145 | + return nil, err |
| 146 | + } |
| 147 | + |
| 148 | + var targets []*storage.MSFT_iSCSITarget |
| 149 | + for _, instance := range targetInstances { |
| 150 | + target, err := storage.NewMSFT_iSCSITargetEx1(instance) |
| 151 | + if err != nil { |
| 152 | + return nil, fmt.Errorf("failed to query iSCSI target %v. %v", instance, err) |
| 153 | + } |
| 154 | + |
| 155 | + targets = append(targets, target) |
| 156 | + } |
| 157 | + |
| 158 | + return targets, nil |
| 159 | +} |
| 160 | + |
| 161 | +// QueryISCSITarget retrieves the iSCSI target from the specified portal address, portal and node address. |
| 162 | +func QueryISCSITarget(address string, port uint32, nodeAddress string, selectorList []string) (*storage.MSFT_iSCSITarget, error) { |
| 163 | + portal, err := QueryISCSITargetPortal(address, port, nil) |
| 164 | + if err != nil { |
| 165 | + return nil, err |
| 166 | + } |
| 167 | + |
| 168 | + targets, err := ListISCSITargetsByTargetPortalWithFilters(selectorList, []*storage.MSFT_iSCSITargetPortal{portal}, |
| 169 | + query.NewWmiQueryFilter("NodeAddress", nodeAddress, query.Equals)) |
| 170 | + if err != nil { |
| 171 | + return nil, err |
| 172 | + } |
| 173 | + |
| 174 | + return targets[0], nil |
| 175 | +} |
| 176 | + |
| 177 | +// QueryISCSISessionByTarget retrieves the iSCSI session from the specified iSCSI target. |
| 178 | +func QueryISCSISessionByTarget(target *storage.MSFT_iSCSITarget, selectorList []string) (*storage.MSFT_iSCSISession, error) { |
| 179 | + sessionQuery := query.NewWmiQueryWithSelectList("MSFT_iSCSISession", selectorList) |
| 180 | + sessionInstances, err := QueryInstances(WMINamespaceStorage, sessionQuery) |
| 181 | + if err != nil { |
| 182 | + return nil, err |
| 183 | + } |
| 184 | + |
| 185 | + targetToTargetSessionMapping, err := ListISCSISessionToISCSITargetMapping() |
| 186 | + if err != nil { |
| 187 | + return nil, err |
| 188 | + } |
| 189 | + |
| 190 | + filtered, err := FindInstancesByMapping(sessionInstances, iscsiSessionIndexer, []*cim.WmiInstance{target.WmiInstance}, iscsiTargetIndexer, targetToTargetSessionMapping) |
| 191 | + if err != nil { |
| 192 | + return nil, err |
| 193 | + } |
| 194 | + |
| 195 | + session, err := storage.NewMSFT_iSCSISessionEx1(filtered[0]) |
| 196 | + return session, err |
| 197 | +} |
| 198 | + |
| 199 | +// ListDisksByTarget lists all the disks on the specified iSCSI target. |
| 200 | +func ListDisksByTarget(target *storage.MSFT_iSCSITarget, selectorList []string) ([]*storage.MSFT_Disk, error) { |
| 201 | + // list connections to the given iSCSI target |
| 202 | + connectionQuery := query.NewWmiQueryWithSelectList("MSFT_iSCSIConnection", selectorList) |
| 203 | + connectionInstances, err := QueryInstances(WMINamespaceStorage, connectionQuery) |
| 204 | + if err != nil { |
| 205 | + return nil, err |
| 206 | + } |
| 207 | + |
| 208 | + connectionToTargetMapping, err := ListISCSIConnectionToISCSITargetMapping() |
| 209 | + if err != nil { |
| 210 | + return nil, err |
| 211 | + } |
| 212 | + |
| 213 | + connectionsToTarget, err := FindInstancesByMapping(connectionInstances, iscsiConnectionIndexer, []*cim.WmiInstance{target.WmiInstance}, iscsiTargetIndexer, connectionToTargetMapping) |
| 214 | + if err != nil { |
| 215 | + return nil, err |
| 216 | + } |
| 217 | + |
| 218 | + disks, err := ListDisks(selectorList) |
| 219 | + if err != nil { |
| 220 | + return nil, err |
| 221 | + } |
| 222 | + |
| 223 | + var diskInstances []*cim.WmiInstance |
| 224 | + for _, disk := range disks { |
| 225 | + diskInstances = append(diskInstances, disk.WmiInstance) |
| 226 | + } |
| 227 | + |
| 228 | + diskToConnectionMapping, err := ListDiskToISCSIConnectionMapping() |
| 229 | + if err != nil { |
| 230 | + return nil, err |
| 231 | + } |
| 232 | + |
| 233 | + filtered, err := FindInstancesByMapping(diskInstances, objectIDPropertyIndexer, connectionsToTarget, iscsiConnectionIndexer, diskToConnectionMapping) |
| 234 | + if err != nil { |
| 235 | + return nil, err |
| 236 | + } |
| 237 | + |
| 238 | + var filteredDisks []*storage.MSFT_Disk |
| 239 | + for _, instance := range filtered { |
| 240 | + disk, err := storage.NewMSFT_DiskEx1(instance) |
| 241 | + if err != nil { |
| 242 | + return nil, fmt.Errorf("failed to query disk %v. error: %v", disk, err) |
| 243 | + } |
| 244 | + |
| 245 | + filteredDisks = append(filteredDisks, disk) |
| 246 | + } |
| 247 | + return filteredDisks, err |
| 248 | +} |
| 249 | + |
| 250 | +// ConnectISCSITarget establishes a connection to an iSCSI target with optional CHAP authentication credential. |
| 251 | +func ConnectISCSITarget(portalAddress string, portalPortNumber uint32, nodeAddress string, authType string, chapUsername *string, chapSecret *string) (int, map[string]interface{}, error) { |
| 252 | + inParams := map[string]interface{}{ |
| 253 | + "NodeAddress": nodeAddress, |
| 254 | + "TargetPortalAddress": portalAddress, |
| 255 | + "TargetPortalPortNumber": int(portalPortNumber), |
| 256 | + "AuthenticationType": authType, |
| 257 | + } |
| 258 | + // InitiatorPortalAddress |
| 259 | + // IsDataDigest |
| 260 | + // IsHeaderDigest |
| 261 | + // ReportToPnP |
| 262 | + if chapUsername != nil { |
| 263 | + inParams["ChapUsername"] = *chapUsername |
| 264 | + } |
| 265 | + if chapSecret != nil { |
| 266 | + inParams["ChapSecret"] = *chapSecret |
| 267 | + } |
| 268 | + |
| 269 | + result, outParams, err := InvokeCimMethod(WMINamespaceStorage, "MSFT_iSCSITarget", "Connect", inParams) |
| 270 | + return result, outParams, err |
| 271 | +} |
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