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4c5a5e0c | 1 | /** @file\r |
2 | iSCSI DHCP6 related configuration routines.\r | |
3 | \r | |
eabc6e59 | 4 | Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r |
4c5a5e0c | 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 | #include "IScsiImpl.h"\r | |
16 | \r | |
17 | \r | |
18 | /**\r | |
19 | Extract the Root Path option and get the required target information from\r | |
20 | Boot File Uniform Resource Locator (URL) Option.\r | |
21 | \r | |
22 | @param[in] RootPath The RootPath string.\r | |
23 | @param[in] Length Length of the RootPath option payload.\r | |
24 | @param[in, out] ConfigData The iSCSI session configuration data read from\r | |
25 | nonvolatile device.\r | |
26 | \r | |
27 | @retval EFI_SUCCESS All required information is extracted from the\r | |
28 | RootPath option.\r | |
29 | @retval EFI_NOT_FOUND The RootPath is not an iSCSI RootPath.\r | |
30 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
31 | @retval EFI_INVALID_PARAMETER The RootPath is malformatted.\r | |
32 | \r | |
33 | **/\r | |
34 | EFI_STATUS\r | |
35 | IScsiDhcp6ExtractRootPath (\r | |
36 | IN CHAR8 *RootPath,\r | |
37 | IN UINT16 Length,\r | |
38 | IN OUT ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData\r | |
39 | )\r | |
40 | {\r | |
41 | EFI_STATUS Status;\r | |
42 | UINT16 IScsiRootPathIdLen;\r | |
43 | CHAR8 *TmpStr;\r | |
44 | ISCSI_ROOT_PATH_FIELD Fields[RP_FIELD_IDX_MAX];\r | |
45 | ISCSI_ROOT_PATH_FIELD *Field;\r | |
46 | UINT32 FieldIndex;\r | |
47 | UINT8 Index;\r | |
48 | ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;\r | |
49 | EFI_IP_ADDRESS Ip;\r | |
50 | UINT8 IpMode; \r | |
51 | \r | |
52 | ConfigNvData = &ConfigData->SessionConfigData;\r | |
91cdd20f | 53 | ConfigNvData->DnsMode = FALSE;\r |
4c5a5e0c | 54 | //\r |
55 | // "iscsi:"<servername>":"<protocol>":"<port>":"<LUN>":"<targetname>\r | |
56 | //\r | |
57 | IScsiRootPathIdLen = (UINT16) AsciiStrLen (ISCSI_ROOT_PATH_ID);\r | |
58 | \r | |
59 | if ((Length <= IScsiRootPathIdLen) ||\r | |
60 | (CompareMem (RootPath, ISCSI_ROOT_PATH_ID, IScsiRootPathIdLen) != 0)) {\r | |
61 | return EFI_NOT_FOUND;\r | |
62 | }\r | |
63 | //\r | |
64 | // Skip the iSCSI RootPath ID "iscsi:".\r | |
65 | //\r | |
66 | RootPath = RootPath + IScsiRootPathIdLen;\r | |
67 | Length = (UINT16) (Length - IScsiRootPathIdLen);\r | |
68 | \r | |
69 | TmpStr = (CHAR8 *) AllocatePool (Length + 1);\r | |
70 | if (TmpStr == NULL) {\r | |
71 | return EFI_OUT_OF_RESOURCES;\r | |
72 | }\r | |
73 | \r | |
74 | CopyMem (TmpStr, RootPath, Length);\r | |
75 | TmpStr[Length] = '\0';\r | |
76 | \r | |
77 | Index = 0;\r | |
78 | FieldIndex = 0;\r | |
79 | ZeroMem (&Fields[0], sizeof (Fields));\r | |
80 | \r | |
81 | //\r | |
82 | // Extract SERVERNAME field in the Root Path option.\r | |
83 | //\r | |
84 | if (TmpStr[Index] != ISCSI_ROOT_PATH_ADDR_START_DELIMITER) {\r | |
91cdd20f ZL |
85 | //\r |
86 | // The servername is expressed as domain name.\r | |
87 | //\r | |
88 | ConfigNvData->DnsMode = TRUE;\r | |
4c5a5e0c | 89 | } else {\r |
90 | Index++;\r | |
91 | }\r | |
92 | \r | |
93 | Fields[RP_FIELD_IDX_SERVERNAME].Str = &TmpStr[Index];\r | |
94 | \r | |
91cdd20f ZL |
95 | if (!ConfigNvData->DnsMode) {\r |
96 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_ADDR_END_DELIMITER)&& (Index < Length)) {\r | |
97 | Index++;\r | |
98 | }\r | |
4c5a5e0c | 99 | \r |
91cdd20f ZL |
100 | //\r |
101 | // Skip ']' and ':'.\r | |
102 | //\r | |
103 | TmpStr[Index] = '\0';\r | |
104 | Index += 2;\r | |
105 | } else {\r | |
106 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) && (Index < Length)) {\r | |
107 | Index++;\r | |
108 | }\r | |
109 | //\r | |
110 | // Skip ':'.\r | |
111 | //\r | |
112 | TmpStr[Index] = '\0';\r | |
113 | Index += 1;\r | |
114 | }\r | |
4c5a5e0c | 115 | \r |
116 | Fields[RP_FIELD_IDX_SERVERNAME].Len = (UINT8) AsciiStrLen (Fields[RP_FIELD_IDX_SERVERNAME].Str);\r | |
117 | \r | |
118 | //\r | |
119 | // Extract others fields in the Root Path option string.\r | |
120 | //\r | |
121 | for (FieldIndex = 1; (FieldIndex < RP_FIELD_IDX_MAX) && (Index < Length); FieldIndex++) {\r | |
122 | \r | |
123 | if (TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) {\r | |
124 | Fields[FieldIndex].Str = &TmpStr[Index];\r | |
125 | }\r | |
126 | \r | |
127 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) && (Index < Length)) {\r | |
128 | Index++;\r | |
129 | }\r | |
130 | \r | |
131 | if (TmpStr[Index] == ISCSI_ROOT_PATH_FIELD_DELIMITER) {\r | |
132 | if (FieldIndex != RP_FIELD_IDX_TARGETNAME) {\r | |
133 | TmpStr[Index] = '\0';\r | |
134 | Index++;\r | |
135 | }\r | |
136 | \r | |
137 | if (Fields[FieldIndex].Str != NULL) {\r | |
138 | Fields[FieldIndex].Len = (UINT8) AsciiStrLen (Fields[FieldIndex].Str);\r | |
139 | }\r | |
140 | }\r | |
141 | }\r | |
142 | \r | |
143 | if (FieldIndex != RP_FIELD_IDX_MAX) {\r | |
144 | Status = EFI_INVALID_PARAMETER;\r | |
145 | goto ON_EXIT;\r | |
146 | }\r | |
147 | \r | |
148 | if ((Fields[RP_FIELD_IDX_SERVERNAME].Str == NULL) ||\r | |
149 | (Fields[RP_FIELD_IDX_TARGETNAME].Str == NULL) ||\r | |
150 | (Fields[RP_FIELD_IDX_PROTOCOL].Len > 1)\r | |
151 | ) {\r | |
152 | \r | |
153 | Status = EFI_INVALID_PARAMETER;\r | |
154 | goto ON_EXIT;\r | |
155 | }\r | |
156 | //\r | |
157 | // Get the IP address of the target.\r | |
158 | //\r | |
159 | Field = &Fields[RP_FIELD_IDX_SERVERNAME]; \r | |
160 | if (ConfigNvData->IpMode < IP_MODE_AUTOCONFIG) {\r | |
161 | IpMode = ConfigNvData->IpMode;\r | |
162 | } else {\r | |
163 | IpMode = ConfigData->AutoConfigureMode;\r | |
164 | }\r | |
165 | \r | |
eabc6e59 ZL |
166 | //\r |
167 | // Server name is expressed as domain name, just save it.\r | |
168 | //\r | |
91cdd20f | 169 | if (ConfigNvData->DnsMode) {\r |
eabc6e59 ZL |
170 | if (Field->Len > sizeof (ConfigNvData->TargetUrl)) {\r |
171 | return EFI_INVALID_PARAMETER;\r | |
172 | }\r | |
173 | CopyMem (&ConfigNvData->TargetUrl, Field->Str, Field->Len);\r | |
174 | ConfigNvData->TargetUrl[Field->Len + 1] = '\0';\r | |
175 | } else {\r | |
176 | ZeroMem(&ConfigNvData->TargetUrl, sizeof (ConfigNvData->TargetUrl));\r | |
177 | Status = IScsiAsciiStrToIp (Field->Str, IpMode, &Ip);\r | |
178 | CopyMem (&ConfigNvData->TargetIp, &Ip, sizeof (EFI_IP_ADDRESS));\r | |
4c5a5e0c | 179 | \r |
eabc6e59 ZL |
180 | if (EFI_ERROR (Status)) {\r |
181 | goto ON_EXIT;\r | |
182 | }\r | |
4c5a5e0c | 183 | }\r |
eabc6e59 | 184 | \r |
4c5a5e0c | 185 | //\r |
186 | // Check the protocol type.\r | |
187 | //\r | |
188 | Field = &Fields[RP_FIELD_IDX_PROTOCOL];\r | |
189 | if ((Field->Str != NULL) && ((*(Field->Str) - '0') != EFI_IP_PROTO_TCP)) {\r | |
190 | Status = EFI_INVALID_PARAMETER;\r | |
191 | goto ON_EXIT;\r | |
192 | }\r | |
193 | //\r | |
194 | // Get the port of the iSCSI target.\r | |
195 | //\r | |
196 | Field = &Fields[RP_FIELD_IDX_PORT];\r | |
197 | if (Field->Str != NULL) {\r | |
198 | ConfigNvData->TargetPort = (UINT16) AsciiStrDecimalToUintn (Field->Str);\r | |
199 | } else {\r | |
200 | ConfigNvData->TargetPort = ISCSI_WELL_KNOWN_PORT;\r | |
201 | }\r | |
202 | //\r | |
203 | // Get the LUN.\r | |
204 | //\r | |
205 | Field = &Fields[RP_FIELD_IDX_LUN];\r | |
206 | if (Field->Str != NULL) {\r | |
207 | Status = IScsiAsciiStrToLun (Field->Str, ConfigNvData->BootLun);\r | |
208 | if (EFI_ERROR (Status)) {\r | |
209 | goto ON_EXIT;\r | |
210 | }\r | |
211 | } else {\r | |
212 | ZeroMem (ConfigNvData->BootLun, sizeof (ConfigNvData->BootLun));\r | |
213 | }\r | |
214 | //\r | |
215 | // Get the target iSCSI Name.\r | |
216 | //\r | |
217 | Field = &Fields[RP_FIELD_IDX_TARGETNAME];\r | |
218 | \r | |
219 | if (AsciiStrLen (Field->Str) > ISCSI_NAME_MAX_SIZE - 1) {\r | |
220 | Status = EFI_INVALID_PARAMETER;\r | |
221 | goto ON_EXIT;\r | |
222 | }\r | |
223 | //\r | |
224 | // Validate the iSCSI name.\r | |
225 | //\r | |
226 | Status = IScsiNormalizeName (Field->Str, AsciiStrLen (Field->Str));\r | |
227 | if (EFI_ERROR (Status)) {\r | |
228 | goto ON_EXIT;\r | |
229 | }\r | |
230 | \r | |
c960bdc2 | 231 | AsciiStrCpyS (ConfigNvData->TargetName, ISCSI_NAME_MAX_SIZE, Field->Str);\r |
4c5a5e0c | 232 | \r |
233 | ON_EXIT:\r | |
234 | \r | |
235 | FreePool (TmpStr);\r | |
236 | \r | |
237 | return Status;\r | |
238 | }\r | |
239 | \r | |
240 | /**\r | |
241 | EFI_DHCP6_INFO_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol \r | |
242 | instance to intercept events that occurs in the DHCPv6 Information Request\r | |
243 | exchange process.\r | |
244 | \r | |
245 | @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance that \r | |
246 | is used to configure this callback function.\r | |
247 | @param[in] Context Pointer to the context that is initialized in\r | |
248 | the EFI_DHCP6_PROTOCOL.InfoRequest().\r | |
249 | @param[in] Packet Pointer to Reply packet that has been received.\r | |
250 | The EFI DHCPv6 Protocol instance is responsible\r | |
251 | for freeing the buffer.\r | |
252 | \r | |
253 | @retval EFI_SUCCESS Tell the EFI DHCPv6 Protocol instance to finish\r | |
254 | Information Request exchange process.\r | |
255 | @retval EFI_NOT_READY Tell the EFI DHCPv6 Protocol instance to continue\r | |
256 | Information Request exchange process.\r | |
257 | @retval EFI_ABORTED Tell the EFI DHCPv6 Protocol instance to abort\r | |
258 | the Information Request exchange process.\r | |
259 | @retval EFI_UNSUPPORTED Tell the EFI DHCPv6 Protocol instance to finish\r | |
260 | the Information Request exchange process because some\r | |
261 | request information are not received.\r | |
262 | \r | |
263 | **/\r | |
264 | EFI_STATUS\r | |
265 | EFIAPI\r | |
266 | IScsiDhcp6ParseReply (\r | |
267 | IN EFI_DHCP6_PROTOCOL *This,\r | |
268 | IN VOID *Context,\r | |
269 | IN EFI_DHCP6_PACKET *Packet\r | |
270 | )\r | |
271 | {\r | |
272 | EFI_STATUS Status;\r | |
273 | UINT32 Index;\r | |
274 | UINT32 OptionCount;\r | |
275 | EFI_DHCP6_PACKET_OPTION *BootFileOpt;\r | |
276 | EFI_DHCP6_PACKET_OPTION **OptionList;\r | |
277 | ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData;\r | |
216f7970 | 278 | UINT16 ParaLen;\r |
4c5a5e0c | 279 | \r |
280 | OptionCount = 0;\r | |
281 | BootFileOpt = NULL;\r | |
282 | \r | |
283 | Status = This->Parse (This, Packet, &OptionCount, NULL);\r | |
284 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
285 | return EFI_NOT_READY;\r | |
286 | }\r | |
287 | \r | |
288 | OptionList = AllocateZeroPool (OptionCount * sizeof (EFI_DHCP6_PACKET_OPTION *));\r | |
289 | if (OptionList == NULL) {\r | |
290 | return EFI_NOT_READY;\r | |
291 | }\r | |
292 | \r | |
293 | Status = This->Parse (This, Packet, &OptionCount, OptionList);\r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | Status = EFI_NOT_READY;\r | |
296 | goto Exit;\r | |
297 | }\r | |
298 | \r | |
299 | ConfigData = (ISCSI_ATTEMPT_CONFIG_NVDATA *) Context;\r | |
300 | \r | |
301 | for (Index = 0; Index < OptionCount; Index++) {\r | |
302 | OptionList[Index]->OpCode = NTOHS (OptionList[Index]->OpCode);\r | |
303 | OptionList[Index]->OpLen = NTOHS (OptionList[Index]->OpLen);\r | |
304 | \r | |
305 | //\r | |
306 | // Get DNS server addresses from this reply packet.\r | |
307 | //\r | |
308 | if (OptionList[Index]->OpCode == DHCP6_OPT_DNS_SERVERS) {\r | |
309 | \r | |
310 | if (((OptionList[Index]->OpLen & 0xf) != 0) || (OptionList[Index]->OpLen == 0)) {\r | |
216f7970 | 311 | Status = EFI_UNSUPPORTED;\r |
4c5a5e0c | 312 | goto Exit;\r |
313 | }\r | |
314 | //\r | |
315 | // Primary DNS server address.\r | |
316 | //\r | |
317 | CopyMem (&ConfigData->PrimaryDns, &OptionList[Index]->Data[0], sizeof (EFI_IPv6_ADDRESS));\r | |
318 | \r | |
319 | if (OptionList[Index]->OpLen > 16) {\r | |
320 | //\r | |
321 | // Secondary DNS server address\r | |
322 | //\r | |
323 | CopyMem (&ConfigData->SecondaryDns, &OptionList[Index]->Data[16], sizeof (EFI_IPv6_ADDRESS));\r | |
324 | }\r | |
325 | \r | |
326 | } else if (OptionList[Index]->OpCode == DHCP6_OPT_BOOT_FILE_URL) {\r | |
327 | //\r | |
328 | // The server sends this option to inform the client about an URL to a boot file.\r | |
329 | //\r | |
330 | BootFileOpt = OptionList[Index];\r | |
142c00c3 | 331 | } else if (OptionList[Index]->OpCode == DHCP6_OPT_BOOT_FILE_PARAM) {\r |
216f7970 | 332 | //\r |
333 | // The server sends this option to inform the client about DHCP6 server address.\r | |
334 | //\r | |
335 | if (OptionList[Index]->OpLen < 18) {\r | |
336 | Status = EFI_UNSUPPORTED;\r | |
337 | goto Exit;\r | |
338 | }\r | |
339 | //\r | |
340 | // Check param-len 1, should be 16 bytes.\r | |
341 | //\r | |
342 | CopyMem (&ParaLen, &OptionList[Index]->Data[0], sizeof (UINT16));\r | |
343 | if (NTOHS (ParaLen) != 16) {\r | |
344 | Status = EFI_UNSUPPORTED;\r | |
345 | goto Exit;\r | |
346 | }\r | |
347 | \r | |
348 | CopyMem (&ConfigData->DhcpServer, &OptionList[Index]->Data[2], sizeof (EFI_IPv6_ADDRESS));\r | |
4c5a5e0c | 349 | }\r |
350 | }\r | |
351 | \r | |
352 | if (BootFileOpt == NULL) {\r | |
353 | Status = EFI_UNSUPPORTED;\r | |
354 | goto Exit;\r | |
355 | }\r | |
356 | \r | |
357 | //\r | |
358 | // Get iSCSI root path from Boot File Uniform Resource Locator (URL) Option\r | |
359 | //\r | |
360 | Status = IScsiDhcp6ExtractRootPath (\r | |
361 | (CHAR8 *) BootFileOpt->Data,\r | |
362 | BootFileOpt->OpLen,\r | |
363 | ConfigData\r | |
364 | );\r | |
365 | \r | |
366 | Exit:\r | |
367 | \r | |
368 | FreePool (OptionList);\r | |
369 | return Status;\r | |
370 | }\r | |
371 | \r | |
372 | \r | |
373 | /**\r | |
374 | Parse the DHCP ACK to get the address configuration and DNS information.\r | |
375 | \r | |
376 | @param[in] Image The handle of the driver image.\r | |
377 | @param[in] Controller The handle of the controller;\r | |
378 | @param[in, out] ConfigData The attempt configuration data.\r | |
379 | \r | |
380 | @retval EFI_SUCCESS The DNS information is got from the DHCP ACK.\r | |
381 | @retval EFI_NO_MAPPING DHCP failed to acquire address and other\r | |
382 | information.\r | |
383 | @retval EFI_INVALID_PARAMETER The DHCP ACK's DNS option is malformatted.\r | |
384 | @retval EFI_DEVICE_ERROR Some unexpected error occurred.\r | |
385 | @retval EFI_OUT_OF_RESOURCES There is no sufficient resource to finish the\r | |
386 | operation.\r | |
387 | @retval EFI_NO_MEDIA There was a media error.\r | |
388 | \r | |
389 | **/\r | |
390 | EFI_STATUS\r | |
391 | IScsiDoDhcp6 (\r | |
392 | IN EFI_HANDLE Image,\r | |
393 | IN EFI_HANDLE Controller,\r | |
394 | IN OUT ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData\r | |
395 | )\r | |
396 | {\r | |
397 | EFI_HANDLE Dhcp6Handle;\r | |
398 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
399 | EFI_STATUS Status;\r | |
400 | EFI_STATUS TimerStatus;\r | |
401 | EFI_DHCP6_PACKET_OPTION *Oro;\r | |
402 | EFI_DHCP6_RETRANSMISSION InfoReqReXmit;\r | |
403 | EFI_EVENT Timer;\r | |
404 | BOOLEAN MediaPresent;\r | |
405 | \r | |
406 | //\r | |
407 | // Check media status before doing DHCP.\r | |
408 | //\r | |
409 | MediaPresent = TRUE;\r | |
410 | NetLibDetectMedia (Controller, &MediaPresent);\r | |
411 | if (!MediaPresent) {\r | |
412 | return EFI_NO_MEDIA;\r | |
413 | }\r | |
414 | \r | |
415 | //\r | |
416 | // iSCSI will only request target info from DHCPv6 server.\r | |
417 | //\r | |
418 | if (!ConfigData->SessionConfigData.TargetInfoFromDhcp) {\r | |
419 | return EFI_SUCCESS;\r | |
420 | }\r | |
421 | \r | |
422 | Dhcp6Handle = NULL;\r | |
423 | Dhcp6 = NULL;\r | |
424 | Oro = NULL;\r | |
425 | Timer = NULL;\r | |
426 | \r | |
427 | //\r | |
428 | // Create a DHCP6 child instance and get the protocol.\r | |
429 | //\r | |
430 | Status = NetLibCreateServiceChild (\r | |
431 | Controller,\r | |
432 | Image,\r | |
433 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
434 | &Dhcp6Handle\r | |
435 | );\r | |
436 | if (EFI_ERROR (Status)) {\r | |
437 | return Status;\r | |
438 | }\r | |
439 | \r | |
440 | Status = gBS->OpenProtocol (\r | |
441 | Dhcp6Handle,\r | |
442 | &gEfiDhcp6ProtocolGuid,\r | |
443 | (VOID **) &Dhcp6,\r | |
444 | Image,\r | |
445 | Controller,\r | |
446 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
447 | );\r | |
448 | if (EFI_ERROR (Status)) {\r | |
449 | goto ON_EXIT;\r | |
450 | }\r | |
451 | \r | |
216f7970 | 452 | Oro = AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + 5);\r |
4c5a5e0c | 453 | if (Oro == NULL) {\r |
454 | Status = EFI_OUT_OF_RESOURCES;\r | |
455 | goto ON_EXIT;\r | |
456 | }\r | |
457 | \r | |
458 | //\r | |
459 | // Ask the server to reply with DNS and Boot File URL options by info request.\r | |
460 | // All members in EFI_DHCP6_PACKET_OPTION are in network order.\r | |
461 | //\r | |
142c00c3 | 462 | Oro->OpCode = HTONS (DHCP6_OPT_ORO);\r |
216f7970 | 463 | Oro->OpLen = HTONS (2 * 3);\r |
4c5a5e0c | 464 | Oro->Data[1] = DHCP6_OPT_DNS_SERVERS;\r |
465 | Oro->Data[3] = DHCP6_OPT_BOOT_FILE_URL;\r | |
142c00c3 | 466 | Oro->Data[5] = DHCP6_OPT_BOOT_FILE_PARAM;\r |
4c5a5e0c | 467 | \r |
468 | InfoReqReXmit.Irt = 4;\r | |
469 | InfoReqReXmit.Mrc = 1;\r | |
470 | InfoReqReXmit.Mrt = 10;\r | |
471 | InfoReqReXmit.Mrd = 30;\r | |
472 | \r | |
473 | Status = Dhcp6->InfoRequest (\r | |
474 | Dhcp6,\r | |
475 | TRUE,\r | |
476 | Oro,\r | |
477 | 0,\r | |
478 | NULL,\r | |
479 | &InfoReqReXmit,\r | |
480 | NULL,\r | |
481 | IScsiDhcp6ParseReply,\r | |
482 | ConfigData\r | |
483 | );\r | |
484 | if (Status == EFI_NO_MAPPING) {\r | |
485 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
486 | if (EFI_ERROR (Status)) {\r | |
487 | goto ON_EXIT;\r | |
488 | }\r | |
489 | \r | |
490 | Status = gBS->SetTimer (\r | |
491 | Timer,\r | |
492 | TimerRelative,\r | |
493 | ISCSI_GET_MAPPING_TIMEOUT\r | |
494 | );\r | |
495 | \r | |
496 | if (EFI_ERROR (Status)) {\r | |
497 | goto ON_EXIT;\r | |
498 | }\r | |
499 | \r | |
500 | do {\r | |
501 | \r | |
502 | TimerStatus = gBS->CheckEvent (Timer);\r | |
503 | \r | |
504 | if (!EFI_ERROR (TimerStatus)) {\r | |
505 | Status = Dhcp6->InfoRequest (\r | |
506 | Dhcp6,\r | |
507 | TRUE,\r | |
508 | Oro,\r | |
509 | 0,\r | |
510 | NULL,\r | |
511 | &InfoReqReXmit,\r | |
512 | NULL,\r | |
513 | IScsiDhcp6ParseReply,\r | |
514 | ConfigData\r | |
515 | );\r | |
516 | }\r | |
517 | \r | |
518 | } while (TimerStatus == EFI_NOT_READY);\r | |
519 | \r | |
520 | }\r | |
521 | \r | |
522 | ON_EXIT:\r | |
523 | \r | |
524 | if (Oro != NULL) {\r | |
525 | FreePool (Oro);\r | |
526 | } \r | |
527 | \r | |
528 | if (Timer != NULL) {\r | |
529 | gBS->CloseEvent (Timer);\r | |
530 | }\r | |
531 | \r | |
532 | if (Dhcp6 != NULL) {\r | |
533 | gBS->CloseProtocol (\r | |
534 | Dhcp6Handle,\r | |
535 | &gEfiDhcp6ProtocolGuid,\r | |
536 | Image,\r | |
537 | Controller\r | |
538 | );\r | |
539 | }\r | |
540 | \r | |
541 | NetLibDestroyServiceChild (\r | |
542 | Controller,\r | |
543 | Image,\r | |
544 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
545 | Dhcp6Handle\r | |
546 | );\r | |
547 | \r | |
548 | return Status;\r | |
549 | }\r | |
550 | \r |