]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Implementation of EFI_DNS4_PROTOCOL and EFI_DNS6_PROTOCOL interfaces.\r | |
3 | \r | |
4 | Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r | |
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 "DnsImpl.h"\r | |
16 | \r | |
17 | EFI_DNS4_PROTOCOL mDns4Protocol = {\r | |
18 | Dns4GetModeData,\r | |
19 | Dns4Configure,\r | |
20 | Dns4HostNameToIp,\r | |
21 | Dns4IpToHostName,\r | |
22 | Dns4GeneralLookUp,\r | |
23 | Dns4UpdateDnsCache,\r | |
24 | Dns4Poll,\r | |
25 | Dns4Cancel\r | |
26 | };\r | |
27 | \r | |
28 | EFI_DNS6_PROTOCOL mDns6Protocol = {\r | |
29 | Dns6GetModeData,\r | |
30 | Dns6Configure,\r | |
31 | Dns6HostNameToIp,\r | |
32 | Dns6IpToHostName,\r | |
33 | Dns6GeneralLookUp,\r | |
34 | Dns6UpdateDnsCache,\r | |
35 | Dns6Poll,\r | |
36 | Dns6Cancel\r | |
37 | };\r | |
38 | \r | |
39 | /**\r | |
40 | Retrieve mode data of this DNS instance.\r | |
41 | \r | |
42 | This function is used to retrieve DNS mode data for this DNS instance.\r | |
43 | \r | |
44 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
45 | @param[out] DnsModeData Point to the mode data.\r | |
46 | \r | |
47 | @retval EFI_SUCCESS The operation completed successfully.\r | |
48 | @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r | |
49 | is available because this instance has not been\r | |
50 | configured.\r | |
51 | @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r | |
52 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
53 | **/\r | |
54 | EFI_STATUS\r | |
55 | EFIAPI\r | |
56 | Dns4GetModeData (\r | |
57 | IN EFI_DNS4_PROTOCOL *This,\r | |
58 | OUT EFI_DNS4_MODE_DATA *DnsModeData\r | |
59 | )\r | |
60 | {\r | |
61 | DNS_INSTANCE *Instance;\r | |
62 | \r | |
63 | EFI_TPL OldTpl;\r | |
64 | \r | |
65 | UINTN Index;\r | |
66 | \r | |
67 | LIST_ENTRY *Entry;\r | |
68 | LIST_ENTRY *Next;\r | |
69 | \r | |
70 | DNS4_SERVER_IP *ServerItem;\r | |
71 | EFI_IPv4_ADDRESS *ServerList;\r | |
72 | DNS4_CACHE *CacheItem;\r | |
73 | EFI_DNS4_CACHE_ENTRY *CacheList;\r | |
74 | EFI_STATUS Status;\r | |
75 | \r | |
76 | ServerItem = NULL;\r | |
77 | ServerList = NULL;\r | |
78 | CacheItem = NULL;\r | |
79 | CacheList = NULL;\r | |
80 | Status = EFI_SUCCESS;\r | |
81 | \r | |
82 | \r | |
83 | if ((This == NULL) || (DnsModeData == NULL)) {\r | |
84 | return EFI_INVALID_PARAMETER;\r | |
85 | }\r | |
86 | \r | |
87 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
88 | \r | |
89 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
90 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
91 | gBS->RestoreTPL (OldTpl);\r | |
92 | return EFI_NOT_STARTED;\r | |
93 | }\r | |
94 | \r | |
95 | ZeroMem (DnsModeData, sizeof (EFI_DNS4_MODE_DATA));\r | |
96 | \r | |
97 | //\r | |
98 | // Get the current configuration data of this instance. \r | |
99 | //\r | |
100 | Status = Dns4CopyConfigure (&DnsModeData->DnsConfigData, &Instance->Dns4CfgData);\r | |
101 | if (EFI_ERROR (Status)) {\r | |
102 | gBS->RestoreTPL (OldTpl);\r | |
103 | return Status;\r | |
104 | }\r | |
105 | \r | |
106 | //\r | |
107 | // Get the DnsServerCount and DnsServerList\r | |
108 | //\r | |
109 | Index = 0;\r | |
110 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4ServerList) {\r | |
111 | Index++;\r | |
112 | }\r | |
113 | DnsModeData->DnsServerCount = (UINT32) Index;\r | |
114 | ServerList = AllocatePool (sizeof (EFI_IPv4_ADDRESS) * DnsModeData->DnsServerCount);\r | |
115 | ASSERT (ServerList != NULL);\r | |
116 | Index = 0;\r | |
117 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4ServerList) {\r | |
118 | ServerItem = NET_LIST_USER_STRUCT (Entry, DNS4_SERVER_IP, AllServerLink);\r | |
119 | CopyMem (ServerList + Index, &ServerItem->Dns4ServerIp, sizeof (EFI_IPv4_ADDRESS));\r | |
120 | Index++;\r | |
121 | }\r | |
122 | DnsModeData->DnsServerList = ServerList;\r | |
123 | \r | |
124 | //\r | |
125 | // Get the DnsCacheCount and DnsCacheList\r | |
126 | //\r | |
127 | Index =0;\r | |
128 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
129 | Index++;\r | |
130 | }\r | |
131 | DnsModeData->DnsCacheCount = (UINT32) Index;\r | |
132 | CacheList = AllocatePool (sizeof (EFI_DNS4_CACHE_ENTRY) * DnsModeData->DnsCacheCount);\r | |
133 | ASSERT (CacheList != NULL);\r | |
134 | Index =0;\r | |
135 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
136 | CacheItem = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
137 | CopyMem (CacheList + Index, &CacheItem->DnsCache, sizeof (EFI_DNS4_CACHE_ENTRY));\r | |
138 | Index++;\r | |
139 | }\r | |
140 | DnsModeData->DnsCacheList = CacheList;\r | |
141 | \r | |
142 | gBS->RestoreTPL (OldTpl);\r | |
143 | \r | |
144 | return EFI_SUCCESS;\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | Configure this DNS instance.\r | |
149 | \r | |
150 | This function is used to configure DNS mode data for this DNS instance.\r | |
151 | \r | |
152 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
153 | @param[in] DnsConfigData Point to the Configuration data.\r | |
154 | \r | |
155 | @retval EFI_SUCCESS The operation completed successfully.\r | |
156 | @retval EFI_UNSUPPORTED The designated protocol is not supported.\r | |
157 | @retval EFI_INVALID_PARAMTER Thisis NULL.\r | |
158 | The StationIp address provided in DnsConfigData is not a \r | |
159 | valid unicast.\r | |
160 | DnsServerList is NULL while DnsServerListCount\r | |
161 | is not ZERO.\r | |
162 | DnsServerListCount is ZERO while DnsServerList\r | |
163 | is not NULL\r | |
164 | @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be\r | |
165 | allocated.\r | |
166 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r | |
167 | EFI DNSv4 Protocol instance is not configured.\r | |
168 | @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To \r | |
169 | reconfigure the instance the caller must call Configure() \r | |
170 | with NULL first to return driver to unconfigured state.\r | |
171 | **/\r | |
172 | EFI_STATUS\r | |
173 | EFIAPI\r | |
174 | Dns4Configure (\r | |
175 | IN EFI_DNS4_PROTOCOL *This,\r | |
176 | IN EFI_DNS4_CONFIG_DATA *DnsConfigData\r | |
177 | )\r | |
178 | {\r | |
179 | EFI_STATUS Status;\r | |
180 | DNS_INSTANCE *Instance;\r | |
181 | \r | |
182 | EFI_TPL OldTpl;\r | |
183 | IP4_ADDR Ip;\r | |
184 | IP4_ADDR Netmask;\r | |
185 | \r | |
186 | UINT32 ServerListCount;\r | |
187 | EFI_IPv4_ADDRESS *ServerList; \r | |
188 | \r | |
189 | Status = EFI_SUCCESS;\r | |
190 | ServerList = NULL;\r | |
191 | \r | |
192 | if (This == NULL || \r | |
193 | (DnsConfigData != NULL && ((DnsConfigData->DnsServerListCount != 0 && DnsConfigData->DnsServerList == NULL) || \r | |
194 | (DnsConfigData->DnsServerListCount == 0 && DnsConfigData->DnsServerList != NULL)))) {\r | |
195 | return EFI_INVALID_PARAMETER;\r | |
196 | }\r | |
197 | \r | |
198 | if (DnsConfigData != NULL && DnsConfigData->Protocol != DNS_PROTOCOL_UDP) {\r | |
199 | return EFI_UNSUPPORTED;\r | |
200 | }\r | |
201 | \r | |
202 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
203 | \r | |
204 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
205 | \r | |
206 | if (DnsConfigData == NULL) {\r | |
207 | ZeroMem (&Instance->SessionDnsServer, sizeof (EFI_IP_ADDRESS));\r | |
208 | \r | |
209 | //\r | |
210 | // Reset the Instance if ConfigData is NULL\r | |
211 | //\r | |
212 | if (!NetMapIsEmpty(&Instance->Dns4TxTokens)) {\r | |
213 | Dns4InstanceCancelToken(Instance, NULL);\r | |
214 | }\r | |
215 | \r | |
216 | Instance->MaxRetry = 0;\r | |
217 | \r | |
218 | if (Instance->UdpIo != NULL){\r | |
219 | UdpIoCleanIo (Instance->UdpIo);\r | |
220 | }\r | |
221 | \r | |
222 | if (Instance->Dns4CfgData.DnsServerList != NULL) {\r | |
223 | FreePool (Instance->Dns4CfgData.DnsServerList);\r | |
224 | }\r | |
225 | ZeroMem (&Instance->Dns4CfgData, sizeof (EFI_DNS4_CONFIG_DATA));\r | |
226 | \r | |
227 | Instance->State = DNS_STATE_UNCONFIGED;\r | |
228 | } else {\r | |
229 | //\r | |
230 | // Configure the parameters for new operation.\r | |
231 | //\r | |
232 | CopyMem (&Ip, &DnsConfigData->StationIp, sizeof (IP4_ADDR));\r | |
233 | CopyMem (&Netmask, &DnsConfigData->SubnetMask, sizeof (IP4_ADDR));\r | |
234 | \r | |
235 | Ip = NTOHL (Ip);\r | |
236 | Netmask = NTOHL (Netmask);\r | |
237 | \r | |
238 | if (!DnsConfigData->UseDefaultSetting &&\r | |
239 | ((!IP4_IS_VALID_NETMASK (Netmask) || !NetIp4IsUnicast (Ip, Netmask)))) {\r | |
240 | Status = EFI_INVALID_PARAMETER;\r | |
241 | goto ON_EXIT;\r | |
242 | }\r | |
243 | \r | |
244 | Status = Dns4CopyConfigure (&Instance->Dns4CfgData, DnsConfigData);\r | |
245 | if (EFI_ERROR (Status)) {\r | |
246 | goto ON_EXIT;\r | |
247 | }\r | |
248 | \r | |
249 | if (DnsConfigData->DnsServerListCount == 0 || DnsConfigData->DnsServerList == NULL) {\r | |
250 | gBS->RestoreTPL (OldTpl); \r | |
251 | \r | |
252 | //\r | |
253 | // The DNS instance will retrieve DNS server from DHCP Server\r | |
254 | //\r | |
255 | Status = GetDns4ServerFromDhcp4 (\r | |
256 | Instance,\r | |
257 | &ServerListCount, \r | |
258 | &ServerList\r | |
259 | );\r | |
260 | if (EFI_ERROR (Status)) {\r | |
261 | return Status;\r | |
262 | }\r | |
263 | \r | |
264 | ASSERT(ServerList != NULL);\r | |
265 | \r | |
266 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
267 | \r | |
268 | CopyMem (&Instance->SessionDnsServer.v4, &ServerList[0], sizeof (EFI_IPv4_ADDRESS));\r | |
269 | } else {\r | |
270 | CopyMem (&Instance->SessionDnsServer.v4, &DnsConfigData->DnsServerList[0], sizeof (EFI_IPv4_ADDRESS));\r | |
271 | }\r | |
272 | \r | |
273 | //\r | |
274 | // Config UDP\r | |
275 | //\r | |
276 | Status = Dns4ConfigUdp (Instance, Instance->UdpIo);\r | |
277 | if (EFI_ERROR (Status)) {\r | |
278 | if (Instance->Dns4CfgData.DnsServerList != NULL) {\r | |
279 | FreePool (Instance->Dns4CfgData.DnsServerList);\r | |
280 | }\r | |
281 | goto ON_EXIT;\r | |
282 | }\r | |
283 | \r | |
284 | //\r | |
285 | // Add configured DNS server used by this instance to ServerList.\r | |
286 | //\r | |
287 | Status = AddDns4ServerIp (&mDriverData->Dns4ServerList, Instance->SessionDnsServer.v4);\r | |
288 | if (EFI_ERROR (Status)) {\r | |
289 | if (Instance->Dns4CfgData.DnsServerList != NULL) {\r | |
290 | FreePool (Instance->Dns4CfgData.DnsServerList);\r | |
291 | }\r | |
292 | goto ON_EXIT;\r | |
293 | }\r | |
294 | \r | |
295 | Instance->State = DNS_STATE_CONFIGED;\r | |
296 | }\r | |
297 | \r | |
298 | ON_EXIT:\r | |
299 | gBS->RestoreTPL (OldTpl);\r | |
300 | return Status;\r | |
301 | }\r | |
302 | \r | |
303 | /**\r | |
304 | Host name to host address translation.\r | |
305 | \r | |
306 | The HostNameToIp () function is used to translate the host name to host IP address. A\r | |
307 | type A query is used to get the one or more IP addresses for this host.\r | |
308 | \r | |
309 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
310 | @param[in] HostName Host name.\r | |
311 | @param[in] Token Point to the completion token to translate host name\r | |
312 | to host address.\r | |
313 | \r | |
314 | @retval EFI_SUCCESS The operation completed successfully.\r | |
315 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
316 | This is NULL.\r | |
317 | Token is NULL.\r | |
318 | Token.Event is NULL.\r | |
319 | HostName is NULL. HostName string is unsupported format.\r | |
320 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
321 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
322 | **/\r | |
323 | EFI_STATUS\r | |
324 | EFIAPI\r | |
325 | Dns4HostNameToIp (\r | |
326 | IN EFI_DNS4_PROTOCOL *This,\r | |
327 | IN CHAR16 *HostName,\r | |
328 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
329 | )\r | |
330 | {\r | |
331 | EFI_STATUS Status;\r | |
332 | \r | |
333 | DNS_INSTANCE *Instance;\r | |
334 | \r | |
335 | EFI_DNS4_CONFIG_DATA *ConfigData;\r | |
336 | \r | |
337 | UINTN Index;\r | |
338 | DNS4_CACHE *Item;\r | |
339 | LIST_ENTRY *Entry;\r | |
340 | LIST_ENTRY *Next;\r | |
341 | \r | |
342 | CHAR8 *QueryName;\r | |
343 | \r | |
344 | DNS4_TOKEN_ENTRY *TokenEntry;\r | |
345 | NET_BUF *Packet;\r | |
346 | \r | |
347 | EFI_TPL OldTpl;\r | |
348 | \r | |
349 | Status = EFI_SUCCESS;\r | |
350 | Item = NULL;\r | |
351 | QueryName = NULL;\r | |
352 | TokenEntry = NULL;\r | |
353 | Packet = NULL;\r | |
354 | \r | |
355 | //\r | |
356 | // Validate the parameters\r | |
357 | //\r | |
358 | if ((This == NULL) || (HostName == NULL) || Token == NULL) {\r | |
359 | return EFI_INVALID_PARAMETER;\r | |
360 | }\r | |
361 | \r | |
362 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
363 | \r | |
364 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
365 | \r | |
366 | ConfigData = &(Instance->Dns4CfgData);\r | |
367 | \r | |
368 | Instance->MaxRetry = ConfigData->RetryCount;\r | |
369 | \r | |
370 | Token->Status = EFI_NOT_READY;\r | |
371 | Token->RetryCount = 0;\r | |
372 | Token->RetryInterval = ConfigData->RetryInterval;\r | |
373 | \r | |
374 | if (Instance->State != DNS_STATE_CONFIGED) {\r | |
375 | Status = EFI_NOT_STARTED;\r | |
376 | goto ON_EXIT;\r | |
377 | }\r | |
378 | \r | |
379 | //\r | |
380 | // Check the MaxRetry and RetryInterval values.\r | |
381 | //\r | |
382 | if (Instance->MaxRetry == 0) {\r | |
383 | Instance->MaxRetry = DNS_DEFAULT_RETRY;\r | |
384 | }\r | |
385 | \r | |
386 | if (Token->RetryInterval < DNS_DEFAULT_TIMEOUT) {\r | |
387 | Token->RetryInterval = DNS_DEFAULT_TIMEOUT;\r | |
388 | }\r | |
389 | \r | |
390 | //\r | |
391 | // Check cache\r | |
392 | //\r | |
393 | if (ConfigData->EnableDnsCache) {\r | |
394 | Index = 0;\r | |
395 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
396 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
397 | if (StrCmp (HostName, Item->DnsCache.HostName) == 0) {\r | |
398 | Index++;\r | |
399 | }\r | |
400 | }\r | |
401 | \r | |
402 | if (Index != 0) {\r | |
403 | Token->RspData.H2AData = AllocatePool (sizeof (DNS_HOST_TO_ADDR_DATA));\r | |
404 | if (Token->RspData.H2AData == NULL) {\r | |
405 | Status = EFI_OUT_OF_RESOURCES;\r | |
406 | goto ON_EXIT;\r | |
407 | }\r | |
408 | \r | |
409 | Token->RspData.H2AData->IpCount = (UINT32)Index;\r | |
410 | Token->RspData.H2AData->IpList = AllocatePool (sizeof (EFI_IPv4_ADDRESS) * Index);\r | |
411 | if (Token->RspData.H2AData->IpList == NULL) {\r | |
412 | if (Token->RspData.H2AData != NULL) {\r | |
413 | FreePool (Token->RspData.H2AData);\r | |
414 | }\r | |
415 | \r | |
416 | Status = EFI_OUT_OF_RESOURCES;\r | |
417 | goto ON_EXIT;\r | |
418 | }\r | |
419 | \r | |
420 | Index = 0;\r | |
421 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
422 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
423 | if ((UINT32)Index < Token->RspData.H2AData->IpCount && StrCmp (HostName, Item->DnsCache.HostName) == 0) {\r | |
424 | CopyMem ((Token->RspData.H2AData->IpList) + Index, Item->DnsCache.IpAddress, sizeof (EFI_IPv4_ADDRESS));\r | |
425 | Index++; \r | |
426 | }\r | |
427 | }\r | |
428 | \r | |
429 | Token->Status = EFI_SUCCESS;\r | |
430 | \r | |
431 | if (Token->Event != NULL) {\r | |
432 | gBS->SignalEvent (Token->Event);\r | |
433 | DispatchDpc ();\r | |
434 | }\r | |
435 | \r | |
436 | Status = Token->Status;\r | |
437 | goto ON_EXIT;\r | |
438 | } \r | |
439 | }\r | |
440 | \r | |
441 | //\r | |
442 | // Construct DNS TokenEntry.\r | |
443 | //\r | |
444 | TokenEntry = AllocateZeroPool (sizeof(DNS4_TOKEN_ENTRY));\r | |
445 | if (TokenEntry == NULL) {\r | |
446 | Status = EFI_OUT_OF_RESOURCES;\r | |
447 | goto ON_EXIT;\r | |
448 | }\r | |
449 | \r | |
450 | TokenEntry->PacketToLive = Token->RetryInterval;\r | |
451 | TokenEntry->QueryHostName = HostName;\r | |
452 | TokenEntry->Token = Token;\r | |
453 | \r | |
454 | //\r | |
455 | // Construct QName.\r | |
456 | //\r | |
457 | QueryName = NetLibCreateDnsQName (TokenEntry->QueryHostName);\r | |
458 | if (QueryName == NULL) {\r | |
459 | Status = EFI_OUT_OF_RESOURCES;\r | |
460 | goto ON_EXIT;\r | |
461 | }\r | |
462 | \r | |
463 | //\r | |
464 | // Construct DNS Query Packet.\r | |
465 | //\r | |
466 | Status = ConstructDNSQuery (Instance, QueryName, DNS_TYPE_A, DNS_CLASS_INET, &Packet);\r | |
467 | if (EFI_ERROR (Status)) {\r | |
468 | if (TokenEntry != NULL) {\r | |
469 | FreePool (TokenEntry);\r | |
470 | }\r | |
471 | \r | |
472 | goto ON_EXIT;\r | |
473 | }\r | |
474 | \r | |
475 | ASSERT (Packet != NULL);\r | |
476 | \r | |
477 | //\r | |
478 | // Save the token into the Dns4TxTokens map.\r | |
479 | //\r | |
480 | Status = NetMapInsertTail (&Instance->Dns4TxTokens, TokenEntry, Packet);\r | |
481 | if (EFI_ERROR (Status)) {\r | |
482 | if (TokenEntry != NULL) {\r | |
483 | FreePool (TokenEntry);\r | |
484 | }\r | |
485 | \r | |
486 | NetbufFree (Packet);\r | |
487 | \r | |
488 | goto ON_EXIT;\r | |
489 | }\r | |
490 | \r | |
491 | //\r | |
492 | // Dns Query Ip\r | |
493 | //\r | |
494 | Status = DoDnsQuery (Instance, Packet);\r | |
495 | if (EFI_ERROR (Status)) {\r | |
496 | if (TokenEntry != NULL) {\r | |
497 | FreePool (TokenEntry);\r | |
498 | }\r | |
499 | \r | |
500 | NetbufFree (Packet);\r | |
501 | }\r | |
502 | \r | |
503 | ON_EXIT:\r | |
504 | if (QueryName != NULL) {\r | |
505 | FreePool (QueryName);\r | |
506 | }\r | |
507 | \r | |
508 | gBS->RestoreTPL (OldTpl);\r | |
509 | return Status;\r | |
510 | }\r | |
511 | \r | |
512 | /**\r | |
513 | IPv4 address to host name translation also known as Reverse DNS lookup.\r | |
514 | \r | |
515 | The IpToHostName() function is used to translate the host address to host name. A type PTR \r | |
516 | query is used to get the primary name of the host. Support of this function is optional.\r | |
517 | \r | |
518 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
519 | @param[in] IpAddress Ip Address.\r | |
520 | @param[in] Token Point to the completion token to translate host\r | |
521 | address to host name.\r | |
522 | \r | |
523 | @retval EFI_SUCCESS The operation completed successfully.\r | |
524 | @retval EFI_UNSUPPORTED This function is not supported.\r | |
525 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
526 | This is NULL.\r | |
527 | Token is NULL.\r | |
528 | Token.Event is NULL.\r | |
529 | IpAddress is not valid IP address .\r | |
530 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
531 | @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r | |
532 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
533 | **/\r | |
534 | EFI_STATUS\r | |
535 | EFIAPI\r | |
536 | Dns4IpToHostName (\r | |
537 | IN EFI_DNS4_PROTOCOL *This,\r | |
538 | IN EFI_IPv4_ADDRESS IpAddress,\r | |
539 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
540 | )\r | |
541 | {\r | |
542 | return EFI_UNSUPPORTED;\r | |
543 | }\r | |
544 | \r | |
545 | /**\r | |
546 | Retrieve arbitrary information from the DNS server. \r | |
547 | \r | |
548 | This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r | |
549 | supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r | |
550 | RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r | |
551 | required information. The function is optional.\r | |
552 | \r | |
553 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
554 | @param[in] QName Pointer to Query Name.\r | |
555 | @param[in] QType Query Type.\r | |
556 | @param[in] QClass Query Name.\r | |
557 | @param[in] Token Point to the completion token to retrieve arbitrary\r | |
558 | information.\r | |
559 | \r | |
560 | @retval EFI_SUCCESS The operation completed successfully.\r | |
561 | @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r | |
562 | QType is not supported\r | |
563 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
564 | This is NULL.\r | |
565 | Token is NULL.\r | |
566 | Token.Event is NULL.\r | |
567 | QName is NULL.\r | |
568 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
569 | @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r | |
570 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
571 | **/\r | |
572 | EFI_STATUS\r | |
573 | EFIAPI\r | |
574 | Dns4GeneralLookUp (\r | |
575 | IN EFI_DNS4_PROTOCOL *This,\r | |
576 | IN CHAR8 *QName,\r | |
577 | IN UINT16 QType, \r | |
578 | IN UINT16 QClass,\r | |
579 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
580 | )\r | |
581 | {\r | |
582 | EFI_STATUS Status;\r | |
583 | \r | |
584 | DNS_INSTANCE *Instance;\r | |
585 | \r | |
586 | EFI_DNS4_CONFIG_DATA *ConfigData;\r | |
587 | \r | |
588 | DNS4_TOKEN_ENTRY *TokenEntry;\r | |
589 | NET_BUF *Packet;\r | |
590 | \r | |
591 | EFI_TPL OldTpl;\r | |
592 | \r | |
593 | Status = EFI_SUCCESS;\r | |
594 | TokenEntry = NULL;\r | |
595 | Packet = NULL;\r | |
596 | \r | |
597 | //\r | |
598 | // Validate the parameters\r | |
599 | //\r | |
600 | if ((This == NULL) || (QName == NULL) || Token == NULL) {\r | |
601 | return EFI_INVALID_PARAMETER;\r | |
602 | }\r | |
603 | \r | |
604 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
605 | \r | |
606 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
607 | \r | |
608 | ConfigData = &(Instance->Dns4CfgData);\r | |
609 | \r | |
610 | Instance->MaxRetry = ConfigData->RetryCount;\r | |
611 | \r | |
612 | Token->Status = EFI_NOT_READY;\r | |
613 | Token->RetryCount = 0;\r | |
614 | Token->RetryInterval = ConfigData->RetryInterval;\r | |
615 | \r | |
616 | if (Instance->State != DNS_STATE_CONFIGED) {\r | |
617 | Status = EFI_NOT_STARTED;\r | |
618 | goto ON_EXIT;\r | |
619 | }\r | |
620 | \r | |
621 | //\r | |
622 | // Check the MaxRetry and RetryInterval values.\r | |
623 | //\r | |
624 | if (Instance->MaxRetry == 0) {\r | |
625 | Instance->MaxRetry = DNS_DEFAULT_RETRY;\r | |
626 | }\r | |
627 | \r | |
628 | if (Token->RetryInterval < DNS_DEFAULT_TIMEOUT) {\r | |
629 | Token->RetryInterval = DNS_DEFAULT_TIMEOUT;\r | |
630 | }\r | |
631 | \r | |
632 | //\r | |
633 | // Construct DNS TokenEntry.\r | |
634 | //\r | |
635 | TokenEntry = AllocateZeroPool (sizeof(DNS4_TOKEN_ENTRY));\r | |
636 | if (TokenEntry == NULL) {\r | |
637 | Status = EFI_OUT_OF_RESOURCES;\r | |
638 | goto ON_EXIT;\r | |
639 | }\r | |
640 | \r | |
641 | TokenEntry->PacketToLive = Token->RetryInterval;\r | |
642 | TokenEntry->GeneralLookUp = TRUE;\r | |
643 | TokenEntry->Token = Token;\r | |
644 | \r | |
645 | //\r | |
646 | // Construct DNS Query Packet.\r | |
647 | //\r | |
648 | Status = ConstructDNSQuery (Instance, QName, QType, QClass, &Packet);\r | |
649 | if (EFI_ERROR (Status)) {\r | |
650 | if (TokenEntry != NULL) {\r | |
651 | FreePool (TokenEntry);\r | |
652 | }\r | |
653 | \r | |
654 | goto ON_EXIT;\r | |
655 | }\r | |
656 | \r | |
657 | ASSERT (Packet != NULL);\r | |
658 | \r | |
659 | //\r | |
660 | // Save the token into the Dns4TxTokens map.\r | |
661 | //\r | |
662 | Status = NetMapInsertTail (&Instance->Dns4TxTokens, TokenEntry, Packet);\r | |
663 | if (EFI_ERROR (Status)) {\r | |
664 | if (TokenEntry != NULL) {\r | |
665 | FreePool (TokenEntry);\r | |
666 | }\r | |
667 | \r | |
668 | NetbufFree (Packet);\r | |
669 | \r | |
670 | goto ON_EXIT;\r | |
671 | }\r | |
672 | \r | |
673 | //\r | |
674 | // Dns Query Ip\r | |
675 | //\r | |
676 | Status = DoDnsQuery (Instance, Packet);\r | |
677 | if (EFI_ERROR (Status)) {\r | |
678 | if (TokenEntry != NULL) {\r | |
679 | FreePool (TokenEntry);\r | |
680 | }\r | |
681 | \r | |
682 | NetbufFree (Packet);\r | |
683 | }\r | |
684 | \r | |
685 | ON_EXIT:\r | |
686 | gBS->RestoreTPL (OldTpl);\r | |
687 | return Status;\r | |
688 | }\r | |
689 | \r | |
690 | /**\r | |
691 | This function is to update the DNS Cache.\r | |
692 | \r | |
693 | The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r | |
694 | can be normally dynamically updated after the DNS resolve succeeds. This function\r | |
695 | provided capability to manually add/delete/modify the DNS cache.\r | |
696 | \r | |
697 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
698 | @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r | |
699 | DNS Cahce. If TRUE, this function will delete\r | |
700 | matching DNS Cache entry.\r | |
701 | @param[in] Override If TRUE, the maching DNS cache entry will be\r | |
702 | overwritten with the supplied parameter. If FALSE,\r | |
703 | EFI_ACCESS_DENIED will be returned if the entry to\r | |
704 | be added is already existed.\r | |
705 | @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r | |
706 | \r | |
707 | @retval EFI_SUCCESS The operation completed successfully.\r | |
708 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
709 | This is NULL.\r | |
710 | DnsCacheEntry.HostName is NULL.\r | |
711 | DnsCacheEntry.IpAddress is NULL.\r | |
712 | DnsCacheEntry.Timeout is zero.\r | |
713 | @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r | |
714 | not TRUE.\r | |
715 | **/\r | |
716 | EFI_STATUS\r | |
717 | EFIAPI\r | |
718 | Dns4UpdateDnsCache (\r | |
719 | IN EFI_DNS4_PROTOCOL *This,\r | |
720 | IN BOOLEAN DeleteFlag,\r | |
721 | IN BOOLEAN Override,\r | |
722 | IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r | |
723 | )\r | |
724 | {\r | |
725 | EFI_STATUS Status; \r | |
726 | EFI_TPL OldTpl;\r | |
727 | \r | |
728 | Status = EFI_SUCCESS;\r | |
729 | \r | |
730 | if (DnsCacheEntry.HostName == NULL || DnsCacheEntry.IpAddress == NULL || DnsCacheEntry.Timeout == 0) {\r | |
731 | return EFI_INVALID_PARAMETER; \r | |
732 | }\r | |
733 | \r | |
734 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
735 | \r | |
736 | //\r | |
737 | // Update Dns4Cache here.\r | |
738 | //\r | |
739 | Status = UpdateDns4Cache (&mDriverData->Dns4CacheList, DeleteFlag, Override, DnsCacheEntry);\r | |
740 | \r | |
741 | gBS->RestoreTPL (OldTpl);\r | |
742 | \r | |
743 | return Status;\r | |
744 | }\r | |
745 | \r | |
746 | /**\r | |
747 | Polls for incoming data packets and processes outgoing data packets.\r | |
748 | \r | |
749 | The Poll() function can be used by network drivers and applications to increase the\r | |
750 | rate that data packets are moved between the communications device and the transmit\r | |
751 | and receive queues.\r | |
752 | In some systems, the periodic timer event in the managed network driver may not poll\r | |
753 | the underlying communications device fast enough to transmit and/or receive all data\r | |
754 | packets without missing incoming packets or dropping outgoing packets. Drivers and\r | |
755 | applications that are experiencing packet loss should try calling the Poll()\r | |
756 | function more often.\r | |
757 | \r | |
758 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
759 | \r | |
760 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
761 | @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r | |
762 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
763 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
764 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r | |
765 | queue. Consider increasing the polling rate.\r | |
766 | **/\r | |
767 | EFI_STATUS\r | |
768 | EFIAPI\r | |
769 | Dns4Poll (\r | |
770 | IN EFI_DNS4_PROTOCOL *This\r | |
771 | )\r | |
772 | {\r | |
773 | DNS_INSTANCE *Instance;\r | |
774 | EFI_UDP4_PROTOCOL *Udp;\r | |
775 | \r | |
776 | if (This == NULL) {\r | |
777 | return EFI_INVALID_PARAMETER;\r | |
778 | }\r | |
779 | \r | |
780 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
781 | \r | |
782 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
783 | return EFI_NOT_STARTED;\r | |
784 | } else if (Instance->State == DNS_STATE_DESTROY) {\r | |
785 | return EFI_DEVICE_ERROR;\r | |
786 | }\r | |
787 | \r | |
788 | Udp = Instance->UdpIo->Protocol.Udp4;\r | |
789 | \r | |
790 | return Udp->Poll (Udp);\r | |
791 | }\r | |
792 | \r | |
793 | /**\r | |
794 | Abort an asynchronous DNS operation, including translation between IP and Host, and\r | |
795 | general look up behavior.\r | |
796 | \r | |
797 | The Cancel() function is used to abort a pending resolution request. After calling\r | |
798 | this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r | |
799 | signaled. If the token is not in one of the queues, which usually means that the\r | |
800 | asynchronous operation has completed, this function will not signal the token and\r | |
801 | EFI_NOT_FOUND is returned.\r | |
802 | \r | |
803 | @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r | |
804 | @param[in] Token Pointer to a token that has been issued by\r | |
805 | EFI_DNS4_PROTOCOL.HostNameToIp (),\r | |
806 | EFI_DNS4_PROTOCOL.IpToHostName() or\r | |
807 | EFI_DNS4_PROTOCOL.GeneralLookup().\r | |
808 | If NULL, all pending tokens are aborted.\r | |
809 | \r | |
810 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
811 | @retval EFI_NOT_STARTED This EFI DNS4 Protocol instance has not been started.\r | |
812 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
813 | @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r | |
814 | operation was not found in the transmit queue. It\r | |
815 | was either completed or was not issued by\r | |
816 | HostNameToIp(), IpToHostName() or GeneralLookup().\r | |
817 | **/\r | |
818 | EFI_STATUS\r | |
819 | EFIAPI\r | |
820 | Dns4Cancel (\r | |
821 | IN EFI_DNS4_PROTOCOL *This,\r | |
822 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
823 | )\r | |
824 | {\r | |
825 | EFI_STATUS Status;\r | |
826 | DNS_INSTANCE *Instance;\r | |
827 | EFI_TPL OldTpl;\r | |
828 | \r | |
829 | if (This == NULL) {\r | |
830 | return EFI_INVALID_PARAMETER;\r | |
831 | }\r | |
832 | \r | |
833 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (This);\r | |
834 | \r | |
835 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
836 | return EFI_NOT_STARTED;\r | |
837 | }\r | |
838 | \r | |
839 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
840 | \r | |
841 | //\r | |
842 | // Cancle the tokens specified by Token for this instance.\r | |
843 | //\r | |
844 | Status = Dns4InstanceCancelToken (Instance, Token);\r | |
845 | \r | |
846 | //\r | |
847 | // Dispatch the DPC queued by the NotifyFunction of the canceled token's events.\r | |
848 | //\r | |
849 | DispatchDpc ();\r | |
850 | \r | |
851 | gBS->RestoreTPL (OldTpl);\r | |
852 | \r | |
853 | return Status;\r | |
854 | }\r | |
855 | \r | |
856 | /**\r | |
857 | Retrieve mode data of this DNS instance.\r | |
858 | \r | |
859 | This function is used to retrieve DNS mode data for this DNS instance.\r | |
860 | \r | |
861 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
862 | @param[out] DnsModeData Pointer to the caller-allocated storage for the \r | |
863 | EFI_DNS6_MODE_DATA data.\r | |
864 | \r | |
865 | @retval EFI_SUCCESS The operation completed successfully.\r | |
866 | @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r | |
867 | is available because this instance has not been\r | |
868 | configured.\r | |
869 | @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r | |
870 | @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r | |
871 | **/\r | |
872 | EFI_STATUS\r | |
873 | EFIAPI\r | |
874 | Dns6GetModeData (\r | |
875 | IN EFI_DNS6_PROTOCOL *This,\r | |
876 | OUT EFI_DNS6_MODE_DATA *DnsModeData\r | |
877 | )\r | |
878 | {\r | |
879 | DNS_INSTANCE *Instance;\r | |
880 | \r | |
881 | EFI_TPL OldTpl;\r | |
882 | \r | |
883 | UINTN Index;\r | |
884 | \r | |
885 | LIST_ENTRY *Entry;\r | |
886 | LIST_ENTRY *Next;\r | |
887 | \r | |
888 | DNS6_SERVER_IP *ServerItem;\r | |
889 | EFI_IPv6_ADDRESS *ServerList;\r | |
890 | DNS6_CACHE *CacheItem;\r | |
891 | EFI_DNS6_CACHE_ENTRY *CacheList;\r | |
892 | EFI_STATUS Status;\r | |
893 | \r | |
894 | ServerItem = NULL;\r | |
895 | ServerList = NULL;\r | |
896 | CacheItem = NULL;\r | |
897 | CacheList = NULL;\r | |
898 | Status = EFI_SUCCESS;\r | |
899 | \r | |
900 | if ((This == NULL) || (DnsModeData == NULL)) {\r | |
901 | return EFI_INVALID_PARAMETER;\r | |
902 | }\r | |
903 | \r | |
904 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
905 | \r | |
906 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
907 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
908 | gBS->RestoreTPL (OldTpl);\r | |
909 | return EFI_NOT_STARTED;\r | |
910 | }\r | |
911 | \r | |
912 | ZeroMem (DnsModeData, sizeof (EFI_DNS6_MODE_DATA));\r | |
913 | \r | |
914 | //\r | |
915 | // Get the current configuration data of this instance. \r | |
916 | //\r | |
917 | Status = Dns6CopyConfigure(&DnsModeData->DnsConfigData, &Instance->Dns6CfgData);\r | |
918 | if (EFI_ERROR (Status)) {\r | |
919 | gBS->RestoreTPL (OldTpl);\r | |
920 | return Status;\r | |
921 | }\r | |
922 | \r | |
923 | //\r | |
924 | // Get the DnsServerCount and DnsServerList\r | |
925 | //\r | |
926 | Index = 0;\r | |
927 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6ServerList) {\r | |
928 | Index++;\r | |
929 | }\r | |
930 | DnsModeData->DnsServerCount = (UINT32) Index;\r | |
931 | ServerList = AllocatePool (sizeof(EFI_IPv6_ADDRESS) * DnsModeData->DnsServerCount);\r | |
932 | ASSERT (ServerList != NULL);\r | |
933 | Index = 0;\r | |
934 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6ServerList) {\r | |
935 | ServerItem = NET_LIST_USER_STRUCT (Entry, DNS6_SERVER_IP, AllServerLink);\r | |
936 | CopyMem (ServerList + Index, &ServerItem->Dns6ServerIp, sizeof (EFI_IPv6_ADDRESS));\r | |
937 | Index++;\r | |
938 | }\r | |
939 | DnsModeData->DnsServerList = ServerList;\r | |
940 | \r | |
941 | //\r | |
942 | // Get the DnsCacheCount and DnsCacheList\r | |
943 | //\r | |
944 | Index =0;\r | |
945 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
946 | Index++;\r | |
947 | }\r | |
948 | DnsModeData->DnsCacheCount = (UINT32) Index;\r | |
949 | CacheList = AllocatePool (sizeof(EFI_DNS6_CACHE_ENTRY) * DnsModeData->DnsCacheCount);\r | |
950 | ASSERT (CacheList != NULL);\r | |
951 | Index =0;\r | |
952 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
953 | CacheItem = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
954 | CopyMem (CacheList + Index, &CacheItem->DnsCache, sizeof (EFI_DNS6_CACHE_ENTRY));\r | |
955 | Index++;\r | |
956 | }\r | |
957 | DnsModeData->DnsCacheList = CacheList;\r | |
958 | \r | |
959 | gBS->RestoreTPL (OldTpl);\r | |
960 | \r | |
961 | return EFI_SUCCESS;\r | |
962 | }\r | |
963 | \r | |
964 | /**\r | |
965 | Configure this DNS instance.\r | |
966 | \r | |
967 | The Configure() function is used to set and change the configuration data for this\r | |
968 | EFI DNSv6 Protocol driver instance. Reset the DNS instance if DnsConfigData is NULL.\r | |
969 | \r | |
970 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
971 | @param[in] DnsConfigData Pointer to the configuration data structure. All associated \r | |
972 | storage to be allocated and released by caller.\r | |
973 | \r | |
974 | @retval EFI_SUCCESS The operation completed successfully.\r | |
975 | @retval EFI_INVALID_PARAMTER This is NULL.\r | |
976 | The StationIp address provided in DnsConfigData is not zero and not a valid unicast.\r | |
977 | DnsServerList is NULL while DnsServerList Count is not ZERO.\r | |
978 | DnsServerList Count is ZERO while DnsServerList is not NULL.\r | |
979 | @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be allocated.\r | |
980 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r | |
981 | EFI DNSv6 Protocol instance is not configured.\r | |
982 | @retval EFI_UNSUPPORTED The designated protocol is not supported.\r | |
983 | @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To \r | |
984 | reconfigure the instance the caller must call Configure() with \r | |
985 | NULL first to return driver to unconfigured state.\r | |
986 | **/\r | |
987 | EFI_STATUS\r | |
988 | EFIAPI\r | |
989 | Dns6Configure (\r | |
990 | IN EFI_DNS6_PROTOCOL *This,\r | |
991 | IN EFI_DNS6_CONFIG_DATA *DnsConfigData\r | |
992 | )\r | |
993 | {\r | |
994 | EFI_STATUS Status;\r | |
995 | DNS_INSTANCE *Instance;\r | |
996 | \r | |
997 | EFI_TPL OldTpl;\r | |
998 | \r | |
999 | UINT32 ServerListCount;\r | |
1000 | EFI_IPv6_ADDRESS *ServerList; \r | |
1001 | \r | |
1002 | Status = EFI_SUCCESS;\r | |
1003 | ServerList = NULL;\r | |
1004 | \r | |
1005 | if (This == NULL || \r | |
1006 | (DnsConfigData != NULL && ((DnsConfigData->DnsServerCount != 0 && DnsConfigData->DnsServerList == NULL) || \r | |
1007 | (DnsConfigData->DnsServerCount == 0 && DnsConfigData->DnsServerList != NULL)))) {\r | |
1008 | return EFI_INVALID_PARAMETER;\r | |
1009 | }\r | |
1010 | \r | |
1011 | if (DnsConfigData != NULL && DnsConfigData->Protocol != DNS_PROTOCOL_UDP) {\r | |
1012 | return EFI_UNSUPPORTED;\r | |
1013 | }\r | |
1014 | \r | |
1015 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1016 | \r | |
1017 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
1018 | \r | |
1019 | if (DnsConfigData == NULL) {\r | |
1020 | ZeroMem (&Instance->SessionDnsServer, sizeof (EFI_IP_ADDRESS));\r | |
1021 | \r | |
1022 | //\r | |
1023 | // Reset the Instance if ConfigData is NULL\r | |
1024 | //\r | |
1025 | if (!NetMapIsEmpty(&Instance->Dns6TxTokens)) {\r | |
1026 | Dns6InstanceCancelToken(Instance, NULL);\r | |
1027 | }\r | |
1028 | \r | |
1029 | Instance->MaxRetry = 0;\r | |
1030 | \r | |
1031 | if (Instance->UdpIo != NULL){\r | |
1032 | UdpIoCleanIo (Instance->UdpIo);\r | |
1033 | }\r | |
1034 | \r | |
1035 | if (Instance->Dns6CfgData.DnsServerList != NULL) {\r | |
1036 | FreePool (Instance->Dns6CfgData.DnsServerList);\r | |
1037 | }\r | |
1038 | ZeroMem (&Instance->Dns6CfgData, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
1039 | \r | |
1040 | Instance->State = DNS_STATE_UNCONFIGED;\r | |
1041 | } else {\r | |
1042 | //\r | |
1043 | // Configure the parameters for new operation.\r | |
1044 | //\r | |
1045 | if (!NetIp6IsUnspecifiedAddr (&DnsConfigData->StationIp) && !NetIp6IsValidUnicast (&DnsConfigData->StationIp)) {\r | |
1046 | Status = EFI_INVALID_PARAMETER;\r | |
1047 | goto ON_EXIT;\r | |
1048 | }\r | |
1049 | \r | |
1050 | Status = Dns6CopyConfigure (&Instance->Dns6CfgData, DnsConfigData);\r | |
1051 | if (EFI_ERROR (Status)) {\r | |
1052 | goto ON_EXIT;\r | |
1053 | }\r | |
1054 | \r | |
1055 | if (DnsConfigData->DnsServerCount == 0 || DnsConfigData->DnsServerList == NULL) {\r | |
1056 | gBS->RestoreTPL (OldTpl);\r | |
1057 | \r | |
1058 | //\r | |
1059 | //The DNS instance will retrieve DNS server from DHCP Server.\r | |
1060 | //\r | |
1061 | Status = GetDns6ServerFromDhcp6 (\r | |
1062 | Instance->Service->ImageHandle,\r | |
1063 | Instance->Service->ControllerHandle, \r | |
1064 | &ServerListCount, \r | |
1065 | &ServerList\r | |
1066 | );\r | |
1067 | if (EFI_ERROR (Status)) {\r | |
1068 | goto ON_EXIT;\r | |
1069 | }\r | |
1070 | \r | |
1071 | ASSERT(ServerList != NULL);\r | |
1072 | \r | |
1073 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1074 | \r | |
1075 | CopyMem (&Instance->SessionDnsServer.v6, &ServerList[0], sizeof (EFI_IPv6_ADDRESS));\r | |
1076 | } else {\r | |
1077 | CopyMem (&Instance->SessionDnsServer.v6, &DnsConfigData->DnsServerList[0], sizeof (EFI_IPv6_ADDRESS));\r | |
1078 | }\r | |
1079 | \r | |
1080 | //\r | |
1081 | // Config UDP\r | |
1082 | //\r | |
1083 | Status = Dns6ConfigUdp (Instance, Instance->UdpIo);\r | |
1084 | if (EFI_ERROR (Status)) {\r | |
1085 | if (Instance->Dns6CfgData.DnsServerList != NULL) {\r | |
1086 | FreePool (Instance->Dns6CfgData.DnsServerList);\r | |
1087 | }\r | |
1088 | goto ON_EXIT;\r | |
1089 | }\r | |
1090 | \r | |
1091 | //\r | |
1092 | // Add configured DNS server used by this instance to ServerList.\r | |
1093 | //\r | |
1094 | Status = AddDns6ServerIp (&mDriverData->Dns6ServerList, Instance->SessionDnsServer.v6);\r | |
1095 | if (EFI_ERROR (Status)) {\r | |
1096 | if (Instance->Dns6CfgData.DnsServerList != NULL) {\r | |
1097 | FreePool (Instance->Dns6CfgData.DnsServerList);\r | |
1098 | }\r | |
1099 | goto ON_EXIT;\r | |
1100 | }\r | |
1101 | \r | |
1102 | Instance->State = DNS_STATE_CONFIGED;\r | |
1103 | }\r | |
1104 | \r | |
1105 | ON_EXIT:\r | |
1106 | gBS->RestoreTPL (OldTpl);\r | |
1107 | return Status;\r | |
1108 | }\r | |
1109 | \r | |
1110 | /**\r | |
1111 | Host name to host address translation.\r | |
1112 | \r | |
1113 | The HostNameToIp () function is used to translate the host name to host IP address. A\r | |
1114 | type AAAA query is used to get the one or more IPv6 addresses for this host.\r | |
1115 | \r | |
1116 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1117 | @param[in] HostName Host name.\r | |
1118 | @param[in] Token Point to the completion token to translate host name\r | |
1119 | to host address.\r | |
1120 | \r | |
1121 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1122 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1123 | This is NULL.\r | |
1124 | Token is NULL.\r | |
1125 | Token.Event is NULL.\r | |
1126 | HostName is NULL or buffer contained unsupported characters.\r | |
1127 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
1128 | @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r | |
1129 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
1130 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
1131 | **/\r | |
1132 | EFI_STATUS\r | |
1133 | EFIAPI\r | |
1134 | Dns6HostNameToIp (\r | |
1135 | IN EFI_DNS6_PROTOCOL *This,\r | |
1136 | IN CHAR16 *HostName,\r | |
1137 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
1138 | )\r | |
1139 | {\r | |
1140 | EFI_STATUS Status;\r | |
1141 | \r | |
1142 | DNS_INSTANCE *Instance;\r | |
1143 | \r | |
1144 | EFI_DNS6_CONFIG_DATA *ConfigData;\r | |
1145 | \r | |
1146 | UINTN Index; \r | |
1147 | DNS6_CACHE *Item;\r | |
1148 | LIST_ENTRY *Entry;\r | |
1149 | LIST_ENTRY *Next;\r | |
1150 | \r | |
1151 | CHAR8 *QueryName;\r | |
1152 | \r | |
1153 | DNS6_TOKEN_ENTRY *TokenEntry;\r | |
1154 | NET_BUF *Packet;\r | |
1155 | \r | |
1156 | EFI_TPL OldTpl;\r | |
1157 | \r | |
1158 | Status = EFI_SUCCESS;\r | |
1159 | Item = NULL;\r | |
1160 | QueryName = NULL;\r | |
1161 | TokenEntry = NULL;\r | |
1162 | Packet = NULL;\r | |
1163 | \r | |
1164 | //\r | |
1165 | // Validate the parameters\r | |
1166 | //\r | |
1167 | if ((This == NULL) || (HostName == NULL) || Token == NULL) {\r | |
1168 | return EFI_INVALID_PARAMETER;\r | |
1169 | }\r | |
1170 | \r | |
1171 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1172 | \r | |
1173 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
1174 | \r | |
1175 | ConfigData = &(Instance->Dns6CfgData);\r | |
1176 | \r | |
1177 | Instance->MaxRetry = ConfigData->RetryCount;\r | |
1178 | \r | |
1179 | Token->Status = EFI_NOT_READY;\r | |
1180 | Token->RetryCount = 0;\r | |
1181 | Token->RetryInterval = ConfigData->RetryInterval;\r | |
1182 | \r | |
1183 | if (Instance->State != DNS_STATE_CONFIGED) {\r | |
1184 | Status = EFI_NOT_STARTED;\r | |
1185 | goto ON_EXIT;\r | |
1186 | }\r | |
1187 | \r | |
1188 | //\r | |
1189 | // Check the MaxRetry and RetryInterval values.\r | |
1190 | //\r | |
1191 | if (Instance->MaxRetry == 0) {\r | |
1192 | Instance->MaxRetry = DNS_DEFAULT_RETRY;\r | |
1193 | }\r | |
1194 | \r | |
1195 | if (Token->RetryInterval < DNS_DEFAULT_TIMEOUT) {\r | |
1196 | Token->RetryInterval = DNS_DEFAULT_TIMEOUT;\r | |
1197 | } \r | |
1198 | \r | |
1199 | //\r | |
1200 | // Check cache\r | |
1201 | //\r | |
1202 | if (ConfigData->EnableDnsCache) {\r | |
1203 | Index = 0;\r | |
1204 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
1205 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
1206 | if (StrCmp (HostName, Item->DnsCache.HostName) == 0) {\r | |
1207 | Index++;\r | |
1208 | }\r | |
1209 | }\r | |
1210 | \r | |
1211 | if (Index != 0) {\r | |
1212 | Token->RspData.H2AData = AllocatePool (sizeof (DNS6_HOST_TO_ADDR_DATA));\r | |
1213 | if (Token->RspData.H2AData == NULL) {\r | |
1214 | Status = EFI_OUT_OF_RESOURCES;\r | |
1215 | goto ON_EXIT;\r | |
1216 | }\r | |
1217 | \r | |
1218 | Token->RspData.H2AData->IpCount = (UINT32)Index;\r | |
1219 | Token->RspData.H2AData->IpList = AllocatePool (sizeof (EFI_IPv6_ADDRESS) * Index);\r | |
1220 | if (Token->RspData.H2AData->IpList == NULL) {\r | |
1221 | if (Token->RspData.H2AData != NULL) {\r | |
1222 | FreePool (Token->RspData.H2AData);\r | |
1223 | }\r | |
1224 | \r | |
1225 | Status = EFI_OUT_OF_RESOURCES;\r | |
1226 | goto ON_EXIT;\r | |
1227 | }\r | |
1228 | \r | |
1229 | Index = 0;\r | |
1230 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
1231 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
1232 | if ((UINT32)Index < Token->RspData.H2AData->IpCount && StrCmp (HostName, Item->DnsCache.HostName) == 0) {\r | |
1233 | CopyMem ((Token->RspData.H2AData->IpList) + Index, Item->DnsCache.IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
1234 | Index++;\r | |
1235 | }\r | |
1236 | }\r | |
1237 | \r | |
1238 | Token->Status = EFI_SUCCESS;\r | |
1239 | \r | |
1240 | if (Token->Event != NULL) {\r | |
1241 | gBS->SignalEvent (Token->Event);\r | |
1242 | DispatchDpc ();\r | |
1243 | }\r | |
1244 | \r | |
1245 | Status = Token->Status;\r | |
1246 | goto ON_EXIT;\r | |
1247 | } \r | |
1248 | }\r | |
1249 | \r | |
1250 | //\r | |
1251 | // Construct DNS TokenEntry.\r | |
1252 | //\r | |
1253 | TokenEntry = AllocateZeroPool (sizeof (DNS6_TOKEN_ENTRY));\r | |
1254 | if (TokenEntry == NULL) {\r | |
1255 | Status = EFI_OUT_OF_RESOURCES;\r | |
1256 | goto ON_EXIT;\r | |
1257 | }\r | |
1258 | \r | |
1259 | TokenEntry->PacketToLive = Token->RetryInterval;\r | |
1260 | TokenEntry->QueryHostName = HostName;\r | |
1261 | TokenEntry->Token = Token;\r | |
1262 | \r | |
1263 | \r | |
1264 | //\r | |
1265 | // Construct QName.\r | |
1266 | //\r | |
1267 | QueryName = NetLibCreateDnsQName (TokenEntry->QueryHostName);\r | |
1268 | if (QueryName == NULL) {\r | |
1269 | Status = EFI_OUT_OF_RESOURCES;\r | |
1270 | goto ON_EXIT;\r | |
1271 | }\r | |
1272 | \r | |
1273 | //\r | |
1274 | // Construct DNS Query Packet.\r | |
1275 | //\r | |
1276 | Status = ConstructDNSQuery (Instance, QueryName, DNS_TYPE_AAAA, DNS_CLASS_INET, &Packet);\r | |
1277 | if (EFI_ERROR (Status)) {\r | |
1278 | if (TokenEntry != NULL) {\r | |
1279 | FreePool (TokenEntry);\r | |
1280 | }\r | |
1281 | \r | |
1282 | goto ON_EXIT;\r | |
1283 | }\r | |
1284 | \r | |
1285 | ASSERT (Packet != NULL);\r | |
1286 | \r | |
1287 | //\r | |
1288 | // Save the token into the Dns6TxTokens map.\r | |
1289 | //\r | |
1290 | Status = NetMapInsertTail (&Instance->Dns6TxTokens, TokenEntry, Packet);\r | |
1291 | if (EFI_ERROR (Status)) {\r | |
1292 | if (TokenEntry != NULL) {\r | |
1293 | FreePool (TokenEntry);\r | |
1294 | }\r | |
1295 | \r | |
1296 | NetbufFree (Packet);\r | |
1297 | \r | |
1298 | goto ON_EXIT;\r | |
1299 | }\r | |
1300 | \r | |
1301 | //\r | |
1302 | // Dns Query Ip\r | |
1303 | //\r | |
1304 | Status = DoDnsQuery (Instance, Packet);\r | |
1305 | if (EFI_ERROR (Status)) {\r | |
1306 | if (TokenEntry != NULL) {\r | |
1307 | FreePool (TokenEntry);\r | |
1308 | }\r | |
1309 | \r | |
1310 | NetbufFree (Packet);\r | |
1311 | }\r | |
1312 | \r | |
1313 | ON_EXIT:\r | |
1314 | if (QueryName != NULL) {\r | |
1315 | FreePool (QueryName);\r | |
1316 | }\r | |
1317 | \r | |
1318 | gBS->RestoreTPL (OldTpl);\r | |
1319 | return Status;\r | |
1320 | }\r | |
1321 | \r | |
1322 | /**\r | |
1323 | Host address to host name translation.\r | |
1324 | \r | |
1325 | The IpToHostName () function is used to translate the host address to host name. A\r | |
1326 | type PTR query is used to get the primary name of the host. Implementation can choose\r | |
1327 | to support this function or not.\r | |
1328 | \r | |
1329 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1330 | @param[in] IpAddress Ip Address.\r | |
1331 | @param[in] Token Point to the completion token to translate host\r | |
1332 | address to host name.\r | |
1333 | \r | |
1334 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1335 | @retval EFI_UNSUPPORTED This function is not supported.\r | |
1336 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1337 | This is NULL.\r | |
1338 | Token is NULL.\r | |
1339 | Token.Event is NULL.\r | |
1340 | IpAddress is not valid IP address.\r | |
1341 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
1342 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
1343 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
1344 | **/\r | |
1345 | EFI_STATUS\r | |
1346 | EFIAPI\r | |
1347 | Dns6IpToHostName (\r | |
1348 | IN EFI_DNS6_PROTOCOL *This,\r | |
1349 | IN EFI_IPv6_ADDRESS IpAddress,\r | |
1350 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
1351 | )\r | |
1352 | {\r | |
1353 | return EFI_UNSUPPORTED;\r | |
1354 | }\r | |
1355 | \r | |
1356 | /**\r | |
1357 | This function provides capability to retrieve arbitrary information from the DNS\r | |
1358 | server.\r | |
1359 | \r | |
1360 | This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r | |
1361 | supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r | |
1362 | RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r | |
1363 | required information. The function is optional. Implementation can choose to support\r | |
1364 | it or not.\r | |
1365 | \r | |
1366 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1367 | @param[in] QName Pointer to Query Name.\r | |
1368 | @param[in] QType Query Type.\r | |
1369 | @param[in] QClass Query Name.\r | |
1370 | @param[in] Token Point to the completion token to retrieve arbitrary\r | |
1371 | information.\r | |
1372 | \r | |
1373 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1374 | @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r | |
1375 | QType is not supported\r | |
1376 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1377 | This is NULL.\r | |
1378 | Token is NULL.\r | |
1379 | Token.Event is NULL.\r | |
1380 | QName is NULL.\r | |
1381 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
1382 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
1383 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
1384 | **/\r | |
1385 | EFI_STATUS\r | |
1386 | EFIAPI\r | |
1387 | Dns6GeneralLookUp (\r | |
1388 | IN EFI_DNS6_PROTOCOL *This,\r | |
1389 | IN CHAR8 *QName,\r | |
1390 | IN UINT16 QType, \r | |
1391 | IN UINT16 QClass,\r | |
1392 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
1393 | )\r | |
1394 | {\r | |
1395 | EFI_STATUS Status;\r | |
1396 | \r | |
1397 | DNS_INSTANCE *Instance;\r | |
1398 | \r | |
1399 | EFI_DNS6_CONFIG_DATA *ConfigData;\r | |
1400 | \r | |
1401 | DNS6_TOKEN_ENTRY *TokenEntry;\r | |
1402 | NET_BUF *Packet;\r | |
1403 | \r | |
1404 | EFI_TPL OldTpl;\r | |
1405 | \r | |
1406 | Status = EFI_SUCCESS;\r | |
1407 | TokenEntry = NULL;\r | |
1408 | Packet = NULL;\r | |
1409 | \r | |
1410 | //\r | |
1411 | // Validate the parameters\r | |
1412 | //\r | |
1413 | if ((This == NULL) || (QName == NULL) || Token == NULL) {\r | |
1414 | return EFI_INVALID_PARAMETER;\r | |
1415 | }\r | |
1416 | \r | |
1417 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1418 | \r | |
1419 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
1420 | \r | |
1421 | ConfigData = &(Instance->Dns6CfgData);\r | |
1422 | \r | |
1423 | Instance->MaxRetry = ConfigData->RetryCount;\r | |
1424 | \r | |
1425 | Token->Status = EFI_NOT_READY;\r | |
1426 | Token->RetryCount = 0;\r | |
1427 | Token->RetryInterval = ConfigData->RetryInterval;\r | |
1428 | \r | |
1429 | if (Instance->State != DNS_STATE_CONFIGED) {\r | |
1430 | Status = EFI_NOT_STARTED;\r | |
1431 | goto ON_EXIT;\r | |
1432 | }\r | |
1433 | \r | |
1434 | //\r | |
1435 | // Check the MaxRetry and RetryInterval values.\r | |
1436 | //\r | |
1437 | if (Instance->MaxRetry == 0) {\r | |
1438 | Instance->MaxRetry = DNS_DEFAULT_RETRY;\r | |
1439 | }\r | |
1440 | \r | |
1441 | if (Token->RetryInterval < DNS_DEFAULT_TIMEOUT) {\r | |
1442 | Token->RetryInterval = DNS_DEFAULT_TIMEOUT;\r | |
1443 | }\r | |
1444 | \r | |
1445 | //\r | |
1446 | // Construct DNS TokenEntry.\r | |
1447 | //\r | |
1448 | TokenEntry = AllocateZeroPool (sizeof(DNS6_TOKEN_ENTRY));\r | |
1449 | if (TokenEntry == NULL) {\r | |
1450 | Status = EFI_OUT_OF_RESOURCES;\r | |
1451 | goto ON_EXIT;\r | |
1452 | }\r | |
1453 | \r | |
1454 | TokenEntry->PacketToLive = Token->RetryInterval;\r | |
1455 | TokenEntry->GeneralLookUp = TRUE;\r | |
1456 | TokenEntry->Token = Token;\r | |
1457 | \r | |
1458 | //\r | |
1459 | // Construct DNS Query Packet.\r | |
1460 | //\r | |
1461 | Status = ConstructDNSQuery (Instance, QName, QType, QClass, &Packet);\r | |
1462 | if (EFI_ERROR (Status)) {\r | |
1463 | if (TokenEntry != NULL) {\r | |
1464 | FreePool (TokenEntry);\r | |
1465 | }\r | |
1466 | \r | |
1467 | goto ON_EXIT;\r | |
1468 | }\r | |
1469 | \r | |
1470 | ASSERT (Packet != NULL);\r | |
1471 | \r | |
1472 | //\r | |
1473 | // Save the token into the Dns6TxTokens map.\r | |
1474 | //\r | |
1475 | Status = NetMapInsertTail (&Instance->Dns6TxTokens, TokenEntry, Packet);\r | |
1476 | if (EFI_ERROR (Status)) {\r | |
1477 | if (TokenEntry != NULL) {\r | |
1478 | FreePool (TokenEntry);\r | |
1479 | }\r | |
1480 | \r | |
1481 | NetbufFree (Packet);\r | |
1482 | \r | |
1483 | goto ON_EXIT;\r | |
1484 | }\r | |
1485 | \r | |
1486 | //\r | |
1487 | // Dns Query Ip\r | |
1488 | //\r | |
1489 | Status = DoDnsQuery (Instance, Packet);\r | |
1490 | if (EFI_ERROR (Status)) {\r | |
1491 | if (TokenEntry != NULL) {\r | |
1492 | FreePool (TokenEntry);\r | |
1493 | }\r | |
1494 | \r | |
1495 | NetbufFree (Packet);\r | |
1496 | }\r | |
1497 | \r | |
1498 | ON_EXIT:\r | |
1499 | gBS->RestoreTPL (OldTpl);\r | |
1500 | return Status;\r | |
1501 | }\r | |
1502 | \r | |
1503 | /**\r | |
1504 | This function is to update the DNS Cache.\r | |
1505 | \r | |
1506 | The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r | |
1507 | can be normally dynamically updated after the DNS resolve succeeds. This function\r | |
1508 | provided capability to manually add/delete/modify the DNS cache.\r | |
1509 | \r | |
1510 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1511 | @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r | |
1512 | DNS Cahce. If TRUE, this function will delete\r | |
1513 | matching DNS Cache entry.\r | |
1514 | @param[in] Override If TRUE, the maching DNS cache entry will be\r | |
1515 | overwritten with the supplied parameter. If FALSE,\r | |
1516 | EFI_ACCESS_DENIED will be returned if the entry to\r | |
1517 | be added is already existed.\r | |
1518 | @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r | |
1519 | \r | |
1520 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1521 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1522 | This is NULL.\r | |
1523 | DnsCacheEntry.HostName is NULL.\r | |
1524 | DnsCacheEntry.IpAddress is NULL.\r | |
1525 | DnsCacheEntry.Timeout is zero.\r | |
1526 | @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r | |
1527 | not TRUE.\r | |
1528 | @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r | |
1529 | **/\r | |
1530 | EFI_STATUS\r | |
1531 | EFIAPI\r | |
1532 | Dns6UpdateDnsCache (\r | |
1533 | IN EFI_DNS6_PROTOCOL *This,\r | |
1534 | IN BOOLEAN DeleteFlag,\r | |
1535 | IN BOOLEAN Override,\r | |
1536 | IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r | |
1537 | )\r | |
1538 | {\r | |
1539 | EFI_STATUS Status; \r | |
1540 | EFI_TPL OldTpl;\r | |
1541 | \r | |
1542 | Status = EFI_SUCCESS;\r | |
1543 | \r | |
1544 | if (DnsCacheEntry.HostName == NULL || DnsCacheEntry.IpAddress == NULL || DnsCacheEntry.Timeout == 0) {\r | |
1545 | return EFI_INVALID_PARAMETER; \r | |
1546 | }\r | |
1547 | \r | |
1548 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1549 | \r | |
1550 | //\r | |
1551 | // Update Dns6Cache here.\r | |
1552 | //\r | |
1553 | Status = UpdateDns6Cache (&mDriverData->Dns6CacheList, DeleteFlag, Override, DnsCacheEntry);\r | |
1554 | \r | |
1555 | gBS->RestoreTPL (OldTpl);\r | |
1556 | \r | |
1557 | return Status;\r | |
1558 | }\r | |
1559 | \r | |
1560 | /**\r | |
1561 | Polls for incoming data packets and processes outgoing data packets.\r | |
1562 | \r | |
1563 | The Poll() function can be used by network drivers and applications to increase the\r | |
1564 | rate that data packets are moved between the communications device and the transmit\r | |
1565 | and receive queues.\r | |
1566 | \r | |
1567 | In some systems, the periodic timer event in the managed network driver may not poll\r | |
1568 | the underlying communications device fast enough to transmit and/or receive all data\r | |
1569 | packets without missing incoming packets or dropping outgoing packets. Drivers and\r | |
1570 | applications that are experiencing packet loss should try calling the Poll()\r | |
1571 | function more often.\r | |
1572 | \r | |
1573 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1574 | \r | |
1575 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
1576 | @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r | |
1577 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
1578 | @retval EFI_NO_MAPPING There is no source address is available for use.\r | |
1579 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
1580 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r | |
1581 | queue. Consider increasing the polling rate.\r | |
1582 | **/\r | |
1583 | EFI_STATUS\r | |
1584 | EFIAPI\r | |
1585 | Dns6Poll (\r | |
1586 | IN EFI_DNS6_PROTOCOL *This\r | |
1587 | )\r | |
1588 | {\r | |
1589 | DNS_INSTANCE *Instance;\r | |
1590 | EFI_UDP6_PROTOCOL *Udp;\r | |
1591 | \r | |
1592 | if (This == NULL) {\r | |
1593 | return EFI_INVALID_PARAMETER;\r | |
1594 | }\r | |
1595 | \r | |
1596 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
1597 | \r | |
1598 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
1599 | return EFI_NOT_STARTED;\r | |
1600 | } else if (Instance->State == DNS_STATE_DESTROY) {\r | |
1601 | return EFI_DEVICE_ERROR;\r | |
1602 | }\r | |
1603 | \r | |
1604 | Udp = Instance->UdpIo->Protocol.Udp6;\r | |
1605 | \r | |
1606 | return Udp->Poll (Udp);\r | |
1607 | }\r | |
1608 | \r | |
1609 | /**\r | |
1610 | Abort an asynchronous DNS operation, including translation between IP and Host, and\r | |
1611 | general look up behavior.\r | |
1612 | \r | |
1613 | The Cancel() function is used to abort a pending resolution request. After calling\r | |
1614 | this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r | |
1615 | signaled. If the token is not in one of the queues, which usually means that the\r | |
1616 | asynchronous operation has completed, this function will not signal the token and\r | |
1617 | EFI_NOT_FOUND is returned.\r | |
1618 | \r | |
1619 | @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r | |
1620 | @param[in] Token Pointer to a token that has been issued by\r | |
1621 | EFI_DNS6_PROTOCOL.HostNameToIp (),\r | |
1622 | EFI_DNS6_PROTOCOL.IpToHostName() or\r | |
1623 | EFI_DNS6_PROTOCOL.GeneralLookup().\r | |
1624 | If NULL, all pending tokens are aborted.\r | |
1625 | \r | |
1626 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
1627 | @retval EFI_NOT_STARTED This EFI DNS6 Protocol instance has not been started.\r | |
1628 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
1629 | @retval EFI_NO_MAPPING There's no source address is available for use.\r | |
1630 | @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r | |
1631 | operation was not found in the transmit queue. It\r | |
1632 | was either completed or was not issued by\r | |
1633 | HostNameToIp(), IpToHostName() or GeneralLookup().\r | |
1634 | **/\r | |
1635 | EFI_STATUS\r | |
1636 | EFIAPI\r | |
1637 | Dns6Cancel (\r | |
1638 | IN EFI_DNS6_PROTOCOL *This,\r | |
1639 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
1640 | )\r | |
1641 | {\r | |
1642 | EFI_STATUS Status;\r | |
1643 | DNS_INSTANCE *Instance;\r | |
1644 | EFI_TPL OldTpl;\r | |
1645 | \r | |
1646 | if (This == NULL) {\r | |
1647 | return EFI_INVALID_PARAMETER;\r | |
1648 | }\r | |
1649 | \r | |
1650 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (This);\r | |
1651 | \r | |
1652 | if (Instance->State == DNS_STATE_UNCONFIGED) {\r | |
1653 | return EFI_NOT_STARTED;\r | |
1654 | }\r | |
1655 | \r | |
1656 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1657 | \r | |
1658 | //\r | |
1659 | // Cancle the tokens specified by Token for this instance.\r | |
1660 | //\r | |
1661 | Status = Dns6InstanceCancelToken (Instance, Token);\r | |
1662 | \r | |
1663 | //\r | |
1664 | // Dispatch the DPC queued by the NotifyFunction of the canceled token's events.\r | |
1665 | //\r | |
1666 | DispatchDpc ();\r | |
1667 | \r | |
1668 | gBS->RestoreTPL (OldTpl);\r | |
1669 | \r | |
1670 | return Status;\r | |
1671 | }\r | |
1672 | \r |