| 99c048ef |
1 | /** @file\r |
| 2 | The header files of the driver binding and service binding protocol for DnsDxe driver.\r |
| 3 | \r |
| c2adf51f |
4 | Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r |
| 99c048ef |
5 | This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r |
| 8 | http://opensource.org/licenses/bsd-license.php\r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | \r |
| 13 | **/\r |
| 14 | \r |
| 15 | #ifndef _DNS_DRIVER_H_\r |
| 16 | #define _DNS_DRIVER_H_\r |
| 17 | \r |
| 18 | #include <Protocol/DriverBinding.h>\r |
| 19 | #include <Protocol/ServiceBinding.h>\r |
| 20 | \r |
| 21 | ///\r |
| 22 | /// Dns service block\r |
| 23 | ///\r |
| 24 | typedef struct _DNS_DRIVER_DATA DNS_DRIVER_DATA;\r |
| 25 | \r |
| 26 | ///\r |
| 27 | /// Dns service block\r |
| 28 | ///\r |
| 29 | typedef struct _DNS_SERVICE DNS_SERVICE;\r |
| 30 | \r |
| 31 | ///\r |
| 32 | /// Dns instance block\r |
| 33 | ///\r |
| 34 | typedef struct _DNS_INSTANCE DNS_INSTANCE;\r |
| 35 | \r |
| 36 | #define DNS_SERVICE_SIGNATURE SIGNATURE_32 ('D', 'N', 'S', 'S')\r |
| 37 | \r |
| 38 | #define DNS_INSTANCE_SIGNATURE SIGNATURE_32 ('D', 'N', 'S', 'I') \r |
| 39 | \r |
| 40 | struct _DNS_DRIVER_DATA {\r |
| 41 | EFI_EVENT Timer; /// Ticking timer for DNS cache update.\r |
| 42 | \r |
| 43 | LIST_ENTRY Dns4CacheList;\r |
| 44 | LIST_ENTRY Dns4ServerList;\r |
| 45 | \r |
| 46 | LIST_ENTRY Dns6CacheList;\r |
| 47 | LIST_ENTRY Dns6ServerList;\r |
| 48 | };\r |
| 49 | \r |
| 50 | struct _DNS_SERVICE {\r |
| 51 | UINT32 Signature;\r |
| 52 | EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r |
| 53 | \r |
| 54 | UINT16 Dns4ChildrenNum;\r |
| 55 | LIST_ENTRY Dns4ChildrenList;\r |
| 56 | \r |
| 57 | UINT16 Dns6ChildrenNum;\r |
| 58 | LIST_ENTRY Dns6ChildrenList;\r |
| 59 | \r |
| 60 | EFI_HANDLE ControllerHandle;\r |
| 61 | EFI_HANDLE ImageHandle;\r |
| 62 | \r |
| 63 | EFI_EVENT TimerToGetMap;\r |
| 64 | \r |
| 65 | EFI_EVENT Timer; /// Ticking timer for packet retransmission.\r |
| 66 | \r |
| 67 | UINT8 IpVersion;\r |
| 68 | UDP_IO *ConnectUdp;\r |
| 69 | };\r |
| 70 | \r |
| 71 | struct _DNS_INSTANCE {\r |
| 72 | UINT32 Signature;\r |
| 73 | LIST_ENTRY Link;\r |
| 74 | \r |
| 75 | EFI_DNS4_PROTOCOL Dns4;\r |
| 76 | EFI_DNS6_PROTOCOL Dns6;\r |
| 77 | \r |
| 78 | INTN State;\r |
| 79 | BOOLEAN InDestroy;\r |
| 80 | \r |
| 81 | DNS_SERVICE *Service;\r |
| 82 | EFI_HANDLE ChildHandle;\r |
| 83 | \r |
| 84 | EFI_DNS4_CONFIG_DATA Dns4CfgData;\r |
| 85 | EFI_DNS6_CONFIG_DATA Dns6CfgData;\r |
| 86 | \r |
| 87 | EFI_IP_ADDRESS SessionDnsServer;\r |
| 88 | \r |
| 89 | NET_MAP Dns4TxTokens;\r |
| 90 | NET_MAP Dns6TxTokens;\r |
| 91 | \r |
| 92 | UINT32 MaxRetry;\r |
| 93 | \r |
| 94 | UDP_IO *UdpIo;\r |
| 95 | };\r |
| 96 | \r |
| 97 | typedef struct {\r |
| 98 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r |
| 99 | UINTN NumberOfChildren;\r |
| 100 | EFI_HANDLE *ChildHandleBuffer;\r |
| 101 | } DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;\r |
| 102 | \r |
| 103 | extern DNS_DRIVER_DATA *mDriverData;\r |
| 104 | \r |
| 105 | #define DNS_SERVICE_FROM_THIS(a) \\r |
| 106 | CR (a, DNS_SERVICE, ServiceBinding, DNS_SERVICE_SIGNATURE)\r |
| 107 | \r |
| 108 | #define DNS_INSTANCE_FROM_THIS_PROTOCOL4(a) \\r |
| 109 | CR (a, DNS_INSTANCE, Dns4, DNS_INSTANCE_SIGNATURE)\r |
| 110 | \r |
| 111 | #define DNS_INSTANCE_FROM_THIS_PROTOCOL6(a) \\r |
| 112 | CR (a, DNS_INSTANCE, Dns6, DNS_INSTANCE_SIGNATURE)\r |
| 113 | \r |
| 114 | \r |
| 115 | /**\r |
| 116 | Destroy the DNS instance and recycle the resources.\r |
| 117 | \r |
| 118 | @param[in] Instance The pointer to the DNS instance.\r |
| 119 | \r |
| 120 | **/\r |
| 121 | VOID\r |
| 122 | DnsDestroyInstance (\r |
| 123 | IN DNS_INSTANCE *Instance\r |
| 124 | );\r |
| 125 | \r |
| 126 | /**\r |
| 127 | Create the DNS instance and initialize it.\r |
| 128 | \r |
| 129 | @param[in] Service The pointer to the DNS service.\r |
| 130 | @param[out] Instance The pointer to the DNS instance.\r |
| 131 | \r |
| 132 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r |
| 133 | @retval EFI_SUCCESS The DNS instance is created.\r |
| 134 | \r |
| 135 | **/\r |
| 136 | EFI_STATUS\r |
| 137 | DnsCreateInstance (\r |
| 138 | IN DNS_SERVICE *Service,\r |
| 139 | OUT DNS_INSTANCE **Instance\r |
| 140 | );\r |
| 141 | \r |
| 142 | /**\r |
| 143 | Callback function which provided by user to remove one node in NetDestroyLinkList process.\r |
| 144 | \r |
| 145 | @param[in] Entry The entry to be removed.\r |
| 146 | @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r |
| 147 | \r |
| 148 | @retval EFI_SUCCESS The entry has been removed successfully.\r |
| 149 | @retval Others Fail to remove the entry.\r |
| 150 | \r |
| 151 | **/\r |
| 152 | EFI_STATUS\r |
| 153 | EFIAPI\r |
| 154 | DnsDestroyChildEntryInHandleBuffer (\r |
| 155 | IN LIST_ENTRY *Entry,\r |
| 156 | IN VOID *Context\r |
| 157 | );\r |
| 158 | \r |
| 159 | /**\r |
| 160 | Config a NULL UDP that is used to keep the connection between UDP and DNS.\r |
| 161 | \r |
| 162 | Just leave the Udp child unconfigured. When UDP is unloaded,\r |
| 163 | DNS will be informed with DriverBinding Stop.\r |
| 164 | \r |
| 165 | @param UdpIo The UDP_IO to configure\r |
| 166 | @param Context The opaque parameter to the callback\r |
| 167 | \r |
| 168 | @retval EFI_SUCCESS It always return EFI_SUCCESS directly.\r |
| 169 | \r |
| 170 | **/\r |
| 171 | EFI_STATUS\r |
| 172 | EFIAPI\r |
| 173 | DnsConfigNullUdp (\r |
| 174 | IN UDP_IO *UdpIo,\r |
| 175 | IN VOID *Context\r |
| 176 | );\r |
| 177 | \r |
| 178 | /**\r |
| 179 | Release all the resource used the DNS service binding instance.\r |
| 180 | \r |
| 181 | @param DnsSb The Dns service binding instance.\r |
| 182 | \r |
| 183 | **/\r |
| 184 | VOID\r |
| 185 | DnsDestroyService (\r |
| 186 | IN DNS_SERVICE *DnsSb\r |
| 187 | );\r |
| 188 | \r |
| 189 | /**\r |
| 190 | Create then initialize a Dns service binding instance.\r |
| 191 | \r |
| 192 | @param Controller The controller to install the DNS service\r |
| 193 | binding on\r |
| 194 | @param Image The driver binding image of the DNS driver\r |
| 195 | @param IpVersion IpVersion for this service\r |
| 196 | @param Service The variable to receive the created service\r |
| 197 | binding instance.\r |
| 198 | \r |
| 199 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance.\r |
| 200 | @retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep\r |
| 201 | connection with UDP.\r |
| 202 | @retval EFI_SUCCESS The service instance is created for the\r |
| 203 | controller.\r |
| 204 | \r |
| 205 | **/\r |
| 206 | EFI_STATUS\r |
| 207 | DnsCreateService (\r |
| 208 | IN EFI_HANDLE Controller,\r |
| 209 | IN EFI_HANDLE Image,\r |
| 210 | IN UINT8 IpVersion,\r |
| 211 | OUT DNS_SERVICE **Service\r |
| 212 | );\r |
| 213 | \r |
| 214 | /**\r |
| 215 | Unloads an image.\r |
| 216 | \r |
| 217 | @param ImageHandle Handle that identifies the image to be unloaded.\r |
| 218 | \r |
| 219 | @retval EFI_SUCCESS The image has been unloaded.\r |
| 220 | @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.\r |
| 221 | \r |
| 222 | **/\r |
| 223 | EFI_STATUS \r |
| 224 | EFIAPI\r |
| 225 | DnsUnload (\r |
| 226 | IN EFI_HANDLE ImageHandle\r |
| 227 | );\r |
| 228 | \r |
| 229 | /**\r |
| 230 | This is the declaration of an EFI image entry point. This entry point is\r |
| 231 | the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including\r |
| 232 | both device drivers and bus drivers.\r |
| 233 | \r |
| 234 | @param ImageHandle The firmware allocated handle for the UEFI image.\r |
| 235 | @param SystemTable A pointer to the EFI System Table.\r |
| 236 | \r |
| 237 | @retval EFI_SUCCESS The operation completed successfully.\r |
| 238 | @retval Others An unexpected error occurred.\r |
| 239 | **/\r |
| 240 | EFI_STATUS\r |
| 241 | EFIAPI\r |
| 242 | DnsDriverEntryPoint (\r |
| 243 | IN EFI_HANDLE ImageHandle,\r |
| 244 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 245 | );\r |
| 246 | \r |
| 247 | /**\r |
| 248 | Tests to see if this driver supports a given controller. If a child device is provided, \r |
| 249 | it further tests to see if this driver supports creating a handle for the specified child device.\r |
| 250 | \r |
| 251 | This function checks to see if the driver specified by This supports the device specified by \r |
| 252 | ControllerHandle. Drivers will typically use the device path attached to \r |
| 253 | ControllerHandle and/or the services from the bus I/O abstraction attached to \r |
| 254 | ControllerHandle to determine if the driver supports ControllerHandle. This function \r |
| 255 | may be called many times during platform initialization. In order to reduce boot times, the tests \r |
| 256 | performed by this function must be very small, and take as little time as possible to execute. This \r |
| 257 | function must not change the state of any hardware devices, and this function must be aware that the \r |
| 258 | device specified by ControllerHandle may already be managed by the same driver or a \r |
| 259 | different driver. This function must match its calls to AllocatePages() with FreePages(), \r |
| 260 | AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). \r |
| 261 | Because ControllerHandle may have been previously started by the same driver, if a protocol is \r |
| 262 | already in the opened state, then it must not be closed with CloseProtocol(). This is required \r |
| 263 | to guarantee the state of ControllerHandle is not modified by this function.\r |
| 264 | \r |
| 265 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 266 | @param[in] ControllerHandle The handle of the controller to test. This handle \r |
| 267 | must support a protocol interface that supplies \r |
| 268 | an I/O abstraction to the driver.\r |
| 269 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r |
| 270 | parameter is ignored by device drivers, and is optional for bus \r |
| 271 | drivers. For bus drivers, if this parameter is not NULL, then \r |
| 272 | the bus driver must determine if the bus controller specified \r |
| 273 | by ControllerHandle and the child controller specified \r |
| 274 | by RemainingDevicePath are both supported by this \r |
| 275 | bus driver.\r |
| 276 | \r |
| 277 | @retval EFI_SUCCESS The device specified by ControllerHandle and\r |
| 278 | RemainingDevicePath is supported by the driver specified by This.\r |
| 279 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r |
| 280 | RemainingDevicePath is already being managed by the driver\r |
| 281 | specified by This.\r |
| 282 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r |
| 283 | RemainingDevicePath is already being managed by a different\r |
| 284 | driver or an application that requires exclusive access.\r |
| 285 | Currently not implemented.\r |
| 286 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r |
| 287 | RemainingDevicePath is not supported by the driver specified by This.\r |
| 288 | **/\r |
| 289 | EFI_STATUS\r |
| 290 | EFIAPI\r |
| 291 | Dns4DriverBindingSupported (\r |
| 292 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 293 | IN EFI_HANDLE ControllerHandle,\r |
| 294 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
| 295 | );\r |
| 296 | \r |
| 297 | /**\r |
| 298 | Starts a device controller or a bus controller.\r |
| 299 | \r |
| 300 | The Start() function is designed to be invoked from the EFI boot service ConnectController().\r |
| 301 | As a result, much of the error checking on the parameters to Start() has been moved into this \r |
| 302 | common boot service. It is legal to call Start() from other locations, \r |
| 303 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
| 304 | 1. ControllerHandle must be a valid EFI_HANDLE.\r |
| 305 | 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r |
| 306 | EFI_DEVICE_PATH_PROTOCOL.\r |
| 307 | 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r |
| 308 | have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. \r |
| 309 | \r |
| 310 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 311 | @param[in] ControllerHandle The handle of the controller to start. This handle \r |
| 312 | must support a protocol interface that supplies \r |
| 313 | an I/O abstraction to the driver.\r |
| 314 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r |
| 315 | parameter is ignored by device drivers, and is optional for bus \r |
| 316 | drivers. For a bus driver, if this parameter is NULL, then handles \r |
| 317 | for all the children of Controller are created by this driver. \r |
| 318 | If this parameter is not NULL and the first Device Path Node is \r |
| 319 | not the End of Device Path Node, then only the handle for the \r |
| 320 | child device specified by the first Device Path Node of \r |
| 321 | RemainingDevicePath is created by this driver.\r |
| 322 | If the first Device Path Node of RemainingDevicePath is \r |
| 323 | the End of Device Path Node, no child handle is created by this\r |
| 324 | driver.\r |
| 325 | \r |
| 326 | @retval EFI_SUCCESS The device was started.\r |
| 327 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r |
| 328 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r |
| 329 | @retval Others The driver failded to start the device.\r |
| 330 | \r |
| 331 | **/\r |
| 332 | EFI_STATUS\r |
| 333 | EFIAPI\r |
| 334 | Dns4DriverBindingStart (\r |
| 335 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 336 | IN EFI_HANDLE ControllerHandle,\r |
| 337 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
| 338 | );\r |
| 339 | \r |
| 340 | /**\r |
| 341 | Stops a device controller or a bus controller.\r |
| 342 | \r |
| 343 | The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). \r |
| 344 | As a result, much of the error checking on the parameters to Stop() has been moved \r |
| 345 | into this common boot service. It is legal to call Stop() from other locations, \r |
| 346 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
| 347 | 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r |
| 348 | same driver's Start() function.\r |
| 349 | 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r |
| 350 | EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r |
| 351 | Start() function, and the Start() function must have called OpenProtocol() on\r |
| 352 | ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r |
| 353 | \r |
| 354 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 355 | @param[in] ControllerHandle A handle to the device being stopped. The handle must \r |
| 356 | support a bus specific I/O protocol for the driver \r |
| 357 | to use to stop the device.\r |
| 358 | @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r |
| 359 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL \r |
| 360 | if NumberOfChildren is 0.\r |
| 361 | \r |
| 362 | @retval EFI_SUCCESS The device was stopped.\r |
| 363 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r |
| 364 | \r |
| 365 | **/\r |
| 366 | EFI_STATUS\r |
| 367 | EFIAPI\r |
| 368 | Dns4DriverBindingStop (\r |
| 369 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 370 | IN EFI_HANDLE ControllerHandle,\r |
| 371 | IN UINTN NumberOfChildren,\r |
| 372 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r |
| 373 | );\r |
| 374 | \r |
| 375 | /**\r |
| 376 | Tests to see if this driver supports a given controller. If a child device is provided, \r |
| 377 | it further tests to see if this driver supports creating a handle for the specified child device.\r |
| 378 | \r |
| 379 | This function checks to see if the driver specified by This supports the device specified by \r |
| 380 | ControllerHandle. Drivers will typically use the device path attached to \r |
| 381 | ControllerHandle and/or the services from the bus I/O abstraction attached to \r |
| 382 | ControllerHandle to determine if the driver supports ControllerHandle. This function \r |
| 383 | may be called many times during platform initialization. In order to reduce boot times, the tests \r |
| 384 | performed by this function must be very small, and take as little time as possible to execute. This \r |
| 385 | function must not change the state of any hardware devices, and this function must be aware that the \r |
| 386 | device specified by ControllerHandle may already be managed by the same driver or a \r |
| 387 | different driver. This function must match its calls to AllocatePages() with FreePages(), \r |
| 388 | AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). \r |
| 389 | Because ControllerHandle may have been previously started by the same driver, if a protocol is \r |
| 390 | already in the opened state, then it must not be closed with CloseProtocol(). This is required \r |
| 391 | to guarantee the state of ControllerHandle is not modified by this function.\r |
| 392 | \r |
| 393 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 394 | @param[in] ControllerHandle The handle of the controller to test. This handle \r |
| 395 | must support a protocol interface that supplies \r |
| 396 | an I/O abstraction to the driver.\r |
| 397 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r |
| 398 | parameter is ignored by device drivers, and is optional for bus \r |
| 399 | drivers. For bus drivers, if this parameter is not NULL, then \r |
| 400 | the bus driver must determine if the bus controller specified \r |
| 401 | by ControllerHandle and the child controller specified \r |
| 402 | by RemainingDevicePath are both supported by this \r |
| 403 | bus driver.\r |
| 404 | \r |
| 405 | @retval EFI_SUCCESS The device specified by ControllerHandle and\r |
| 406 | RemainingDevicePath is supported by the driver specified by This.\r |
| 407 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r |
| 408 | RemainingDevicePath is already being managed by the driver\r |
| 409 | specified by This.\r |
| 410 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r |
| 411 | RemainingDevicePath is already being managed by a different\r |
| 412 | driver or an application that requires exclusive access.\r |
| 413 | Currently not implemented.\r |
| 414 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r |
| 415 | RemainingDevicePath is not supported by the driver specified by This.\r |
| 416 | **/\r |
| 417 | EFI_STATUS\r |
| 418 | EFIAPI\r |
| 419 | Dns6DriverBindingSupported (\r |
| 420 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 421 | IN EFI_HANDLE ControllerHandle,\r |
| 422 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
| 423 | );\r |
| 424 | \r |
| 425 | /**\r |
| 426 | Starts a device controller or a bus controller.\r |
| 427 | \r |
| 428 | The Start() function is designed to be invoked from the EFI boot service ConnectController().\r |
| 429 | As a result, much of the error checking on the parameters to Start() has been moved into this \r |
| 430 | common boot service. It is legal to call Start() from other locations, \r |
| 431 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
| 432 | 1. ControllerHandle must be a valid EFI_HANDLE.\r |
| 433 | 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r |
| 434 | EFI_DEVICE_PATH_PROTOCOL.\r |
| 435 | 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r |
| 436 | have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. \r |
| 437 | \r |
| 438 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 439 | @param[in] ControllerHandle The handle of the controller to start. This handle \r |
| 440 | must support a protocol interface that supplies \r |
| 441 | an I/O abstraction to the driver.\r |
| 442 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r |
| 443 | parameter is ignored by device drivers, and is optional for bus \r |
| 444 | drivers. For a bus driver, if this parameter is NULL, then handles \r |
| 445 | for all the children of Controller are created by this driver. \r |
| 446 | If this parameter is not NULL and the first Device Path Node is \r |
| 447 | not the End of Device Path Node, then only the handle for the \r |
| 448 | child device specified by the first Device Path Node of \r |
| 449 | RemainingDevicePath is created by this driver.\r |
| 450 | If the first Device Path Node of RemainingDevicePath is \r |
| 451 | the End of Device Path Node, no child handle is created by this\r |
| 452 | driver.\r |
| 453 | \r |
| 454 | @retval EFI_SUCCESS The device was started.\r |
| 455 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r |
| 456 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r |
| 457 | @retval Others The driver failded to start the device.\r |
| 458 | \r |
| 459 | **/\r |
| 460 | EFI_STATUS\r |
| 461 | EFIAPI\r |
| 462 | Dns6DriverBindingStart (\r |
| 463 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 464 | IN EFI_HANDLE ControllerHandle,\r |
| 465 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
| 466 | );\r |
| 467 | \r |
| 468 | /**\r |
| 469 | Stops a device controller or a bus controller.\r |
| 470 | \r |
| 471 | The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). \r |
| 472 | As a result, much of the error checking on the parameters to Stop() has been moved \r |
| 473 | into this common boot service. It is legal to call Stop() from other locations, \r |
| 474 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
| 475 | 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r |
| 476 | same driver's Start() function.\r |
| 477 | 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r |
| 478 | EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r |
| 479 | Start() function, and the Start() function must have called OpenProtocol() on\r |
| 480 | ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r |
| 481 | \r |
| 482 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
| 483 | @param[in] ControllerHandle A handle to the device being stopped. The handle must \r |
| 484 | support a bus specific I/O protocol for the driver \r |
| 485 | to use to stop the device.\r |
| 486 | @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r |
| 487 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL \r |
| 488 | if NumberOfChildren is 0.\r |
| 489 | \r |
| 490 | @retval EFI_SUCCESS The device was stopped.\r |
| 491 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r |
| 492 | \r |
| 493 | **/\r |
| 494 | EFI_STATUS\r |
| 495 | EFIAPI\r |
| 496 | Dns6DriverBindingStop (\r |
| 497 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 498 | IN EFI_HANDLE ControllerHandle,\r |
| 499 | IN UINTN NumberOfChildren,\r |
| 500 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r |
| 501 | );\r |
| 502 | \r |
| 503 | /**\r |
| 504 | Creates a child handle and installs a protocol.\r |
| 505 | \r |
| 506 | The CreateChild() function installs a protocol on ChildHandle. \r |
| 507 | If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. \r |
| 508 | If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r |
| 509 | \r |
| 510 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r |
| 511 | @param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL,\r |
| 512 | then a new handle is created. If it is a pointer to an existing UEFI handle, \r |
| 513 | then the protocol is added to the existing UEFI handle.\r |
| 514 | \r |
| 515 | @retval EFI_SUCCES The protocol was added to ChildHandle.\r |
| 516 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r |
| c2adf51f |
517 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create\r |
| 99c048ef |
518 | the child\r |
| 519 | @retval other The child handle was not created\r |
| 520 | \r |
| 521 | **/\r |
| 522 | EFI_STATUS\r |
| 523 | EFIAPI\r |
| 524 | Dns4ServiceBindingCreateChild (\r |
| 525 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r |
| 526 | IN EFI_HANDLE *ChildHandle\r |
| 527 | );\r |
| 528 | \r |
| 529 | /**\r |
| 530 | Destroys a child handle with a protocol installed on it.\r |
| 531 | \r |
| 532 | The DestroyChild() function does the opposite of CreateChild(). It removes a protocol \r |
| 533 | that was installed by CreateChild() from ChildHandle. If the removed protocol is the \r |
| 534 | last protocol on ChildHandle, then ChildHandle is destroyed.\r |
| 535 | \r |
| 536 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r |
| 537 | @param[in] ChildHandle Handle of the child to destroy\r |
| 538 | \r |
| 539 | @retval EFI_SUCCES The protocol was removed from ChildHandle.\r |
| 540 | @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.\r |
| 541 | @retval EFI_INVALID_PARAMETER Child handle is NULL.\r |
| 542 | @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle\r |
| 543 | because its services are being used.\r |
| 544 | @retval other The child handle was not destroyed\r |
| 545 | \r |
| 546 | **/\r |
| 547 | EFI_STATUS\r |
| 548 | EFIAPI\r |
| 549 | Dns4ServiceBindingDestroyChild (\r |
| 550 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r |
| 551 | IN EFI_HANDLE ChildHandle\r |
| 552 | );\r |
| 553 | \r |
| 554 | /**\r |
| 555 | Creates a child handle and installs a protocol.\r |
| 556 | \r |
| 557 | The CreateChild() function installs a protocol on ChildHandle. \r |
| 558 | If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. \r |
| 559 | If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r |
| 560 | \r |
| 561 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r |
| 562 | @param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL,\r |
| 563 | then a new handle is created. If it is a pointer to an existing UEFI handle, \r |
| 564 | then the protocol is added to the existing UEFI handle.\r |
| 565 | \r |
| 566 | @retval EFI_SUCCES The protocol was added to ChildHandle.\r |
| 567 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r |
| c2adf51f |
568 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create\r |
| 99c048ef |
569 | the child\r |
| 570 | @retval other The child handle was not created\r |
| 571 | \r |
| 572 | **/\r |
| 573 | EFI_STATUS\r |
| 574 | EFIAPI\r |
| 575 | Dns6ServiceBindingCreateChild (\r |
| 576 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r |
| 577 | IN EFI_HANDLE *ChildHandle\r |
| 578 | );\r |
| 579 | \r |
| 580 | /**\r |
| 581 | Destroys a child handle with a protocol installed on it.\r |
| 582 | \r |
| 583 | The DestroyChild() function does the opposite of CreateChild(). It removes a protocol \r |
| 584 | that was installed by CreateChild() from ChildHandle. If the removed protocol is the \r |
| 585 | last protocol on ChildHandle, then ChildHandle is destroyed.\r |
| 586 | \r |
| 587 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r |
| 588 | @param[in] ChildHandle Handle of the child to destroy\r |
| 589 | \r |
| 590 | @retval EFI_SUCCES The protocol was removed from ChildHandle.\r |
| 591 | @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.\r |
| 592 | @retval EFI_INVALID_PARAMETER Child handle is NULL.\r |
| 593 | @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle\r |
| 594 | because its services are being used.\r |
| 595 | @retval other The child handle was not destroyed\r |
| 596 | \r |
| 597 | **/\r |
| 598 | EFI_STATUS\r |
| 599 | EFIAPI\r |
| 600 | Dns6ServiceBindingDestroyChild (\r |
| 601 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r |
| 602 | IN EFI_HANDLE ChildHandle\r |
| 603 | );\r |
| 604 | \r |
| 605 | \r |
| 606 | #endif\r |
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