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4c5a5e0c | 1 | /** @file\r |
2 | iSCSI DHCP6 related configuration routines.\r | |
3 | \r | |
f75a7f56 | 4 | Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r |
ecf98fbc | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
4c5a5e0c | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "IScsiImpl.h"\r | |
10 | \r | |
4c5a5e0c | 11 | /**\r |
12 | Extract the Root Path option and get the required target information from\r | |
13 | Boot File Uniform Resource Locator (URL) Option.\r | |
14 | \r | |
15 | @param[in] RootPath The RootPath string.\r | |
16 | @param[in] Length Length of the RootPath option payload.\r | |
17 | @param[in, out] ConfigData The iSCSI session configuration data read from\r | |
18 | nonvolatile device.\r | |
19 | \r | |
20 | @retval EFI_SUCCESS All required information is extracted from the\r | |
21 | RootPath option.\r | |
22 | @retval EFI_NOT_FOUND The RootPath is not an iSCSI RootPath.\r | |
23 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
24 | @retval EFI_INVALID_PARAMETER The RootPath is malformatted.\r | |
25 | \r | |
26 | **/\r | |
27 | EFI_STATUS\r | |
28 | IScsiDhcp6ExtractRootPath (\r | |
29 | IN CHAR8 *RootPath,\r | |
30 | IN UINT16 Length,\r | |
d1050b9d | 31 | IN OUT ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData\r |
4c5a5e0c | 32 | )\r |
33 | {\r | |
d1050b9d MK |
34 | EFI_STATUS Status;\r |
35 | UINT16 IScsiRootPathIdLen;\r | |
36 | CHAR8 *TmpStr;\r | |
37 | ISCSI_ROOT_PATH_FIELD Fields[RP_FIELD_IDX_MAX];\r | |
38 | ISCSI_ROOT_PATH_FIELD *Field;\r | |
39 | UINT32 FieldIndex;\r | |
40 | UINT8 Index;\r | |
41 | ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;\r | |
42 | EFI_IP_ADDRESS Ip;\r | |
43 | UINT8 IpMode;\r | |
44 | \r | |
45 | ConfigNvData = &ConfigData->SessionConfigData;\r | |
91cdd20f | 46 | ConfigNvData->DnsMode = FALSE;\r |
4c5a5e0c | 47 | //\r |
48 | // "iscsi:"<servername>":"<protocol>":"<port>":"<LUN>":"<targetname>\r | |
49 | //\r | |
d1050b9d | 50 | IScsiRootPathIdLen = (UINT16)AsciiStrLen (ISCSI_ROOT_PATH_ID);\r |
4c5a5e0c | 51 | \r |
52 | if ((Length <= IScsiRootPathIdLen) ||\r | |
d1050b9d MK |
53 | (CompareMem (RootPath, ISCSI_ROOT_PATH_ID, IScsiRootPathIdLen) != 0))\r |
54 | {\r | |
4c5a5e0c | 55 | return EFI_NOT_FOUND;\r |
56 | }\r | |
d1050b9d | 57 | \r |
4c5a5e0c | 58 | //\r |
59 | // Skip the iSCSI RootPath ID "iscsi:".\r | |
60 | //\r | |
61 | RootPath = RootPath + IScsiRootPathIdLen;\r | |
d1050b9d | 62 | Length = (UINT16)(Length - IScsiRootPathIdLen);\r |
4c5a5e0c | 63 | \r |
d1050b9d | 64 | TmpStr = (CHAR8 *)AllocatePool (Length + 1);\r |
4c5a5e0c | 65 | if (TmpStr == NULL) {\r |
66 | return EFI_OUT_OF_RESOURCES;\r | |
67 | }\r | |
68 | \r | |
69 | CopyMem (TmpStr, RootPath, Length);\r | |
d1050b9d | 70 | TmpStr[Length] = '\0';\r |
4c5a5e0c | 71 | \r |
d1050b9d MK |
72 | Index = 0;\r |
73 | FieldIndex = 0;\r | |
4c5a5e0c | 74 | ZeroMem (&Fields[0], sizeof (Fields));\r |
75 | \r | |
76 | //\r | |
77 | // Extract SERVERNAME field in the Root Path option.\r | |
78 | //\r | |
79 | if (TmpStr[Index] != ISCSI_ROOT_PATH_ADDR_START_DELIMITER) {\r | |
91cdd20f ZL |
80 | //\r |
81 | // The servername is expressed as domain name.\r | |
82 | //\r | |
83 | ConfigNvData->DnsMode = TRUE;\r | |
4c5a5e0c | 84 | } else {\r |
85 | Index++;\r | |
86 | }\r | |
87 | \r | |
88 | Fields[RP_FIELD_IDX_SERVERNAME].Str = &TmpStr[Index];\r | |
89 | \r | |
91cdd20f | 90 | if (!ConfigNvData->DnsMode) {\r |
d1050b9d | 91 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_ADDR_END_DELIMITER) && (Index < Length)) {\r |
91cdd20f ZL |
92 | Index++;\r |
93 | }\r | |
4c5a5e0c | 94 | \r |
91cdd20f ZL |
95 | //\r |
96 | // Skip ']' and ':'.\r | |
97 | //\r | |
98 | TmpStr[Index] = '\0';\r | |
d1050b9d | 99 | Index += 2;\r |
91cdd20f ZL |
100 | } else {\r |
101 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) && (Index < Length)) {\r | |
102 | Index++;\r | |
103 | }\r | |
d1050b9d | 104 | \r |
91cdd20f ZL |
105 | //\r |
106 | // Skip ':'.\r | |
107 | //\r | |
108 | TmpStr[Index] = '\0';\r | |
d1050b9d | 109 | Index += 1;\r |
91cdd20f | 110 | }\r |
4c5a5e0c | 111 | \r |
d1050b9d | 112 | Fields[RP_FIELD_IDX_SERVERNAME].Len = (UINT8)AsciiStrLen (Fields[RP_FIELD_IDX_SERVERNAME].Str);\r |
4c5a5e0c | 113 | \r |
114 | //\r | |
115 | // Extract others fields in the Root Path option string.\r | |
116 | //\r | |
117 | for (FieldIndex = 1; (FieldIndex < RP_FIELD_IDX_MAX) && (Index < Length); FieldIndex++) {\r | |
4c5a5e0c | 118 | if (TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) {\r |
119 | Fields[FieldIndex].Str = &TmpStr[Index];\r | |
120 | }\r | |
121 | \r | |
122 | while ((TmpStr[Index] != ISCSI_ROOT_PATH_FIELD_DELIMITER) && (Index < Length)) {\r | |
123 | Index++;\r | |
124 | }\r | |
125 | \r | |
126 | if (TmpStr[Index] == ISCSI_ROOT_PATH_FIELD_DELIMITER) {\r | |
127 | if (FieldIndex != RP_FIELD_IDX_TARGETNAME) {\r | |
128 | TmpStr[Index] = '\0';\r | |
129 | Index++;\r | |
130 | }\r | |
131 | \r | |
132 | if (Fields[FieldIndex].Str != NULL) {\r | |
d1050b9d | 133 | Fields[FieldIndex].Len = (UINT8)AsciiStrLen (Fields[FieldIndex].Str);\r |
4c5a5e0c | 134 | }\r |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | if (FieldIndex != RP_FIELD_IDX_MAX) {\r | |
139 | Status = EFI_INVALID_PARAMETER;\r | |
140 | goto ON_EXIT;\r | |
141 | }\r | |
142 | \r | |
143 | if ((Fields[RP_FIELD_IDX_SERVERNAME].Str == NULL) ||\r | |
144 | (Fields[RP_FIELD_IDX_TARGETNAME].Str == NULL) ||\r | |
145 | (Fields[RP_FIELD_IDX_PROTOCOL].Len > 1)\r | |
d1050b9d MK |
146 | )\r |
147 | {\r | |
4c5a5e0c | 148 | Status = EFI_INVALID_PARAMETER;\r |
149 | goto ON_EXIT;\r | |
150 | }\r | |
d1050b9d | 151 | \r |
4c5a5e0c | 152 | //\r |
153 | // Get the IP address of the target.\r | |
154 | //\r | |
d1050b9d | 155 | Field = &Fields[RP_FIELD_IDX_SERVERNAME];\r |
4c5a5e0c | 156 | if (ConfigNvData->IpMode < IP_MODE_AUTOCONFIG) {\r |
157 | IpMode = ConfigNvData->IpMode;\r | |
158 | } else {\r | |
159 | IpMode = ConfigData->AutoConfigureMode;\r | |
160 | }\r | |
161 | \r | |
eabc6e59 ZL |
162 | //\r |
163 | // Server name is expressed as domain name, just save it.\r | |
164 | //\r | |
91cdd20f | 165 | if (ConfigNvData->DnsMode) {\r |
0f1946b6 | 166 | if ((Field->Len + 2) > sizeof (ConfigNvData->TargetUrl)) {\r |
eabc6e59 ZL |
167 | return EFI_INVALID_PARAMETER;\r |
168 | }\r | |
d1050b9d | 169 | \r |
eabc6e59 ZL |
170 | CopyMem (&ConfigNvData->TargetUrl, Field->Str, Field->Len);\r |
171 | ConfigNvData->TargetUrl[Field->Len + 1] = '\0';\r | |
172 | } else {\r | |
d1050b9d | 173 | ZeroMem (&ConfigNvData->TargetUrl, sizeof (ConfigNvData->TargetUrl));\r |
eabc6e59 ZL |
174 | Status = IScsiAsciiStrToIp (Field->Str, IpMode, &Ip);\r |
175 | CopyMem (&ConfigNvData->TargetIp, &Ip, sizeof (EFI_IP_ADDRESS));\r | |
4c5a5e0c | 176 | \r |
eabc6e59 ZL |
177 | if (EFI_ERROR (Status)) {\r |
178 | goto ON_EXIT;\r | |
179 | }\r | |
4c5a5e0c | 180 | }\r |
eabc6e59 | 181 | \r |
4c5a5e0c | 182 | //\r |
183 | // Check the protocol type.\r | |
184 | //\r | |
185 | Field = &Fields[RP_FIELD_IDX_PROTOCOL];\r | |
186 | if ((Field->Str != NULL) && ((*(Field->Str) - '0') != EFI_IP_PROTO_TCP)) {\r | |
187 | Status = EFI_INVALID_PARAMETER;\r | |
188 | goto ON_EXIT;\r | |
189 | }\r | |
d1050b9d | 190 | \r |
4c5a5e0c | 191 | //\r |
192 | // Get the port of the iSCSI target.\r | |
193 | //\r | |
194 | Field = &Fields[RP_FIELD_IDX_PORT];\r | |
195 | if (Field->Str != NULL) {\r | |
d1050b9d | 196 | ConfigNvData->TargetPort = (UINT16)AsciiStrDecimalToUintn (Field->Str);\r |
4c5a5e0c | 197 | } else {\r |
198 | ConfigNvData->TargetPort = ISCSI_WELL_KNOWN_PORT;\r | |
199 | }\r | |
d1050b9d | 200 | \r |
4c5a5e0c | 201 | //\r |
202 | // Get the LUN.\r | |
203 | //\r | |
204 | Field = &Fields[RP_FIELD_IDX_LUN];\r | |
205 | if (Field->Str != NULL) {\r | |
206 | Status = IScsiAsciiStrToLun (Field->Str, ConfigNvData->BootLun);\r | |
207 | if (EFI_ERROR (Status)) {\r | |
208 | goto ON_EXIT;\r | |
209 | }\r | |
210 | } else {\r | |
211 | ZeroMem (ConfigNvData->BootLun, sizeof (ConfigNvData->BootLun));\r | |
212 | }\r | |
d1050b9d | 213 | \r |
4c5a5e0c | 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 | |
d1050b9d | 223 | \r |
4c5a5e0c | 224 | //\r |
225 | // Validate the iSCSI name.\r | |
226 | //\r | |
227 | Status = IScsiNormalizeName (Field->Str, AsciiStrLen (Field->Str));\r | |
228 | if (EFI_ERROR (Status)) {\r | |
229 | goto ON_EXIT;\r | |
230 | }\r | |
231 | \r | |
c960bdc2 | 232 | AsciiStrCpyS (ConfigNvData->TargetName, ISCSI_NAME_MAX_SIZE, Field->Str);\r |
4c5a5e0c | 233 | \r |
234 | ON_EXIT:\r | |
235 | \r | |
236 | FreePool (TmpStr);\r | |
237 | \r | |
238 | return Status;\r | |
239 | }\r | |
240 | \r | |
241 | /**\r | |
f75a7f56 | 242 | EFI_DHCP6_INFO_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol\r |
4c5a5e0c | 243 | instance to intercept events that occurs in the DHCPv6 Information Request\r |
244 | exchange process.\r | |
245 | \r | |
f75a7f56 | 246 | @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance that\r |
4c5a5e0c | 247 | is used to configure this callback function.\r |
248 | @param[in] Context Pointer to the context that is initialized in\r | |
249 | the EFI_DHCP6_PROTOCOL.InfoRequest().\r | |
250 | @param[in] Packet Pointer to Reply packet that has been received.\r | |
251 | The EFI DHCPv6 Protocol instance is responsible\r | |
252 | for freeing the buffer.\r | |
253 | \r | |
254 | @retval EFI_SUCCESS Tell the EFI DHCPv6 Protocol instance to finish\r | |
255 | Information Request exchange process.\r | |
256 | @retval EFI_NOT_READY Tell the EFI DHCPv6 Protocol instance to continue\r | |
257 | Information Request exchange process.\r | |
258 | @retval EFI_ABORTED Tell the EFI DHCPv6 Protocol instance to abort\r | |
259 | the Information Request exchange process.\r | |
260 | @retval EFI_UNSUPPORTED Tell the EFI DHCPv6 Protocol instance to finish\r | |
261 | the Information Request exchange process because some\r | |
262 | request information are not received.\r | |
263 | \r | |
264 | **/\r | |
265 | EFI_STATUS\r | |
266 | EFIAPI\r | |
267 | IScsiDhcp6ParseReply (\r | |
d1050b9d MK |
268 | IN EFI_DHCP6_PROTOCOL *This,\r |
269 | IN VOID *Context,\r | |
270 | IN EFI_DHCP6_PACKET *Packet\r | |
4c5a5e0c | 271 | )\r |
272 | {\r | |
d1050b9d MK |
273 | EFI_STATUS Status;\r |
274 | UINT32 Index;\r | |
275 | UINT32 OptionCount;\r | |
276 | EFI_DHCP6_PACKET_OPTION *BootFileOpt;\r | |
277 | EFI_DHCP6_PACKET_OPTION **OptionList;\r | |
278 | ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData;\r | |
279 | UINT16 ParaLen;\r | |
f75a7f56 | 280 | \r |
4c5a5e0c | 281 | OptionCount = 0;\r |
282 | BootFileOpt = NULL;\r | |
f75a7f56 | 283 | \r |
d1050b9d | 284 | Status = This->Parse (This, Packet, &OptionCount, NULL);\r |
4c5a5e0c | 285 | if (Status != EFI_BUFFER_TOO_SMALL) {\r |
286 | return EFI_NOT_READY;\r | |
287 | }\r | |
288 | \r | |
289 | OptionList = AllocateZeroPool (OptionCount * sizeof (EFI_DHCP6_PACKET_OPTION *));\r | |
290 | if (OptionList == NULL) {\r | |
291 | return EFI_NOT_READY;\r | |
292 | }\r | |
293 | \r | |
294 | Status = This->Parse (This, Packet, &OptionCount, OptionList);\r | |
295 | if (EFI_ERROR (Status)) {\r | |
296 | Status = EFI_NOT_READY;\r | |
297 | goto Exit;\r | |
298 | }\r | |
299 | \r | |
d1050b9d | 300 | ConfigData = (ISCSI_ATTEMPT_CONFIG_NVDATA *)Context;\r |
4c5a5e0c | 301 | \r |
302 | for (Index = 0; Index < OptionCount; Index++) {\r | |
303 | OptionList[Index]->OpCode = NTOHS (OptionList[Index]->OpCode);\r | |
304 | OptionList[Index]->OpLen = NTOHS (OptionList[Index]->OpLen);\r | |
305 | \r | |
306 | //\r | |
307 | // Get DNS server addresses from this reply packet.\r | |
308 | //\r | |
309 | if (OptionList[Index]->OpCode == DHCP6_OPT_DNS_SERVERS) {\r | |
4c5a5e0c | 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 | |
d1050b9d | 314 | \r |
4c5a5e0c | 315 | //\r |
316 | // Primary DNS server address.\r | |
317 | //\r | |
318 | CopyMem (&ConfigData->PrimaryDns, &OptionList[Index]->Data[0], sizeof (EFI_IPv6_ADDRESS));\r | |
319 | \r | |
320 | if (OptionList[Index]->OpLen > 16) {\r | |
321 | //\r | |
322 | // Secondary DNS server address\r | |
323 | //\r | |
324 | CopyMem (&ConfigData->SecondaryDns, &OptionList[Index]->Data[16], sizeof (EFI_IPv6_ADDRESS));\r | |
325 | }\r | |
4c5a5e0c | 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 | |
d1050b9d | 339 | \r |
216f7970 | 340 | //\r |
341 | // Check param-len 1, should be 16 bytes.\r | |
342 | //\r | |
343 | CopyMem (&ParaLen, &OptionList[Index]->Data[0], sizeof (UINT16));\r | |
344 | if (NTOHS (ParaLen) != 16) {\r | |
345 | Status = EFI_UNSUPPORTED;\r | |
346 | goto Exit;\r | |
347 | }\r | |
348 | \r | |
349 | CopyMem (&ConfigData->DhcpServer, &OptionList[Index]->Data[2], sizeof (EFI_IPv6_ADDRESS));\r | |
4c5a5e0c | 350 | }\r |
351 | }\r | |
352 | \r | |
353 | if (BootFileOpt == NULL) {\r | |
354 | Status = EFI_UNSUPPORTED;\r | |
355 | goto Exit;\r | |
356 | }\r | |
f75a7f56 | 357 | \r |
4c5a5e0c | 358 | //\r |
359 | // Get iSCSI root path from Boot File Uniform Resource Locator (URL) Option\r | |
360 | //\r | |
361 | Status = IScsiDhcp6ExtractRootPath (\r | |
d1050b9d | 362 | (CHAR8 *)BootFileOpt->Data,\r |
4c5a5e0c | 363 | BootFileOpt->OpLen,\r |
364 | ConfigData\r | |
365 | );\r | |
366 | \r | |
367 | Exit:\r | |
368 | \r | |
369 | FreePool (OptionList);\r | |
370 | return Status;\r | |
371 | }\r | |
372 | \r | |
4c5a5e0c | 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 | |
d1050b9d MK |
392 | IN EFI_HANDLE Image,\r |
393 | IN EFI_HANDLE Controller,\r | |
394 | IN OUT ISCSI_ATTEMPT_CONFIG_NVDATA *ConfigData\r | |
4c5a5e0c | 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 | |
152f2d5e | 404 | EFI_STATUS MediaStatus;\r |
4c5a5e0c | 405 | \r |
406 | //\r | |
407 | // Check media status before doing DHCP.\r | |
408 | //\r | |
152f2d5e | 409 | MediaStatus = EFI_SUCCESS;\r |
410 | NetLibDetectMediaWaitTimeout (Controller, ISCSI_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);\r | |
411 | if (MediaStatus != EFI_SUCCESS) {\r | |
412 | AsciiPrint ("\n Error: Could not detect network connection.\n");\r | |
4c5a5e0c | 413 | return EFI_NO_MEDIA;\r |
414 | }\r | |
415 | \r | |
416 | //\r | |
417 | // iSCSI will only request target info from DHCPv6 server.\r | |
418 | //\r | |
419 | if (!ConfigData->SessionConfigData.TargetInfoFromDhcp) {\r | |
420 | return EFI_SUCCESS;\r | |
421 | }\r | |
422 | \r | |
423 | Dhcp6Handle = NULL;\r | |
424 | Dhcp6 = NULL;\r | |
425 | Oro = NULL;\r | |
426 | Timer = NULL;\r | |
427 | \r | |
428 | //\r | |
429 | // Create a DHCP6 child instance and get the protocol.\r | |
430 | //\r | |
431 | Status = NetLibCreateServiceChild (\r | |
432 | Controller,\r | |
433 | Image,\r | |
434 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
435 | &Dhcp6Handle\r | |
436 | );\r | |
437 | if (EFI_ERROR (Status)) {\r | |
438 | return Status;\r | |
439 | }\r | |
440 | \r | |
441 | Status = gBS->OpenProtocol (\r | |
442 | Dhcp6Handle,\r | |
443 | &gEfiDhcp6ProtocolGuid,\r | |
d1050b9d | 444 | (VOID **)&Dhcp6,\r |
4c5a5e0c | 445 | Image,\r |
446 | Controller,\r | |
447 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
448 | );\r | |
449 | if (EFI_ERROR (Status)) {\r | |
450 | goto ON_EXIT;\r | |
451 | }\r | |
452 | \r | |
216f7970 | 453 | Oro = AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + 5);\r |
4c5a5e0c | 454 | if (Oro == NULL) {\r |
455 | Status = EFI_OUT_OF_RESOURCES;\r | |
456 | goto ON_EXIT;\r | |
457 | }\r | |
458 | \r | |
459 | //\r | |
460 | // Ask the server to reply with DNS and Boot File URL options by info request.\r | |
461 | // All members in EFI_DHCP6_PACKET_OPTION are in network order.\r | |
462 | //\r | |
142c00c3 | 463 | Oro->OpCode = HTONS (DHCP6_OPT_ORO);\r |
216f7970 | 464 | Oro->OpLen = HTONS (2 * 3);\r |
4c5a5e0c | 465 | Oro->Data[1] = DHCP6_OPT_DNS_SERVERS;\r |
466 | Oro->Data[3] = DHCP6_OPT_BOOT_FILE_URL;\r | |
142c00c3 | 467 | Oro->Data[5] = DHCP6_OPT_BOOT_FILE_PARAM;\r |
4c5a5e0c | 468 | \r |
469 | InfoReqReXmit.Irt = 4;\r | |
470 | InfoReqReXmit.Mrc = 1;\r | |
471 | InfoReqReXmit.Mrt = 10;\r | |
472 | InfoReqReXmit.Mrd = 30;\r | |
473 | \r | |
474 | Status = Dhcp6->InfoRequest (\r | |
475 | Dhcp6,\r | |
476 | TRUE,\r | |
477 | Oro,\r | |
478 | 0,\r | |
479 | NULL,\r | |
480 | &InfoReqReXmit,\r | |
481 | NULL,\r | |
482 | IScsiDhcp6ParseReply,\r | |
483 | ConfigData\r | |
484 | );\r | |
485 | if (Status == EFI_NO_MAPPING) {\r | |
486 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
487 | if (EFI_ERROR (Status)) {\r | |
488 | goto ON_EXIT;\r | |
489 | }\r | |
490 | \r | |
491 | Status = gBS->SetTimer (\r | |
492 | Timer,\r | |
493 | TimerRelative,\r | |
494 | ISCSI_GET_MAPPING_TIMEOUT\r | |
495 | );\r | |
496 | \r | |
497 | if (EFI_ERROR (Status)) {\r | |
498 | goto ON_EXIT;\r | |
499 | }\r | |
500 | \r | |
501 | do {\r | |
4c5a5e0c | 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 | |
4c5a5e0c | 517 | } while (TimerStatus == EFI_NOT_READY);\r |
4c5a5e0c | 518 | }\r |
519 | \r | |
520 | ON_EXIT:\r | |
521 | \r | |
522 | if (Oro != NULL) {\r | |
523 | FreePool (Oro);\r | |
f75a7f56 | 524 | }\r |
4c5a5e0c | 525 | \r |
526 | if (Timer != NULL) {\r | |
527 | gBS->CloseEvent (Timer);\r | |
528 | }\r | |
529 | \r | |
530 | if (Dhcp6 != NULL) {\r | |
531 | gBS->CloseProtocol (\r | |
532 | Dhcp6Handle,\r | |
533 | &gEfiDhcp6ProtocolGuid,\r | |
534 | Image,\r | |
535 | Controller\r | |
536 | );\r | |
537 | }\r | |
538 | \r | |
539 | NetLibDestroyServiceChild (\r | |
540 | Controller,\r | |
541 | Image,\r | |
542 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
543 | Dhcp6Handle\r | |
544 | );\r | |
545 | \r | |
546 | return Status;\r | |
547 | }\r |