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99c048ef 1/** @file\r
2DnsDxe support functions implementation.\r
f75a7f56
LG
3\r
4Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
99c048ef 5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#ifndef __EFI_DNS_IMPL_H_\r
16#define __EFI_DNS_IMPL_H_\r
17\r
18#include <Uefi.h>\r
19\r
20//\r
21// Libraries classes\r
22//\r
23#include <Library/BaseLib.h>\r
24#include <Library/UefiLib.h>\r
25#include <Library/UefiBootServicesTableLib.h>\r
26#include <Library/UefiDriverEntryPoint.h>\r
27#include <Library/UefiRuntimeServicesTableLib.h>\r
28#include <Library/BaseMemoryLib.h>\r
29#include <Library/MemoryAllocationLib.h>\r
30#include <Library/NetLib.h>\r
31#include <Library/DebugLib.h>\r
32#include <Library/DpcLib.h>\r
33#include <Library/PrintLib.h>\r
34#include <Library/UdpIoLib.h>\r
35\r
36//\r
37// UEFI Driver Model Protocols\r
38//\r
39#include <Protocol/DriverBinding.h>\r
40#include <Protocol/ComponentName2.h>\r
41#include <Protocol/ComponentName.h>\r
42\r
43#include <Protocol/Udp4.h>\r
44#include <Protocol/Dhcp4.h>\r
45#include <Protocol/Dns4.h>\r
46\r
47#include <Protocol/Udp6.h>\r
48#include <Protocol/Dhcp6.h>\r
49#include <Protocol/Dns6.h>\r
50\r
51#include <Protocol/Ip4Config2.h>\r
52\r
53#include "DnsDriver.h"\r
54#include "DnsDhcp.h"\r
55\r
56//\r
57// Driver Version\r
58//\r
59#define DNS_VERSION 0x00000000\r
60\r
61//\r
62// Protocol instances\r
63//\r
64extern EFI_COMPONENT_NAME_PROTOCOL gDnsComponentName;\r
65extern EFI_COMPONENT_NAME2_PROTOCOL gDnsComponentName2;\r
66extern EFI_UNICODE_STRING_TABLE *gDnsControllerNameTable;\r
67\r
68extern EFI_DRIVER_BINDING_PROTOCOL gDns4DriverBinding;\r
69extern EFI_SERVICE_BINDING_PROTOCOL mDns4ServiceBinding;\r
70extern EFI_DNS4_PROTOCOL mDns4Protocol;\r
71\r
72extern EFI_DRIVER_BINDING_PROTOCOL gDns6DriverBinding;\r
73extern EFI_SERVICE_BINDING_PROTOCOL mDns6ServiceBinding;\r
74extern EFI_DNS6_PROTOCOL mDns6Protocol;\r
75\r
76//\r
77// DNS related\r
78//\r
79#define DNS_SERVER_PORT 53\r
80\r
81#define DNS_PROTOCOL_UDP EFI_IP_PROTO_UDP\r
82#define DNS_PROTOCOL_TCP EFI_IP_PROTO_TCP\r
83\r
84#define DNS_STATE_UNCONFIGED 0\r
85#define DNS_STATE_CONFIGED 1\r
86#define DNS_STATE_DESTROY 2\r
87\r
88#define DNS_DEFAULT_TIMEOUT 2\r
99c048ef 89\r
90#define DNS_TIME_TO_GETMAP 5\r
91\r
92#pragma pack(1)\r
93\r
94typedef union _DNS_FLAGS DNS_FLAGS;\r
95\r
96typedef struct {\r
97 LIST_ENTRY AllCacheLink;\r
f75a7f56 98 EFI_DNS4_CACHE_ENTRY DnsCache;\r
99c048ef 99} DNS4_CACHE;\r
100\r
101typedef struct {\r
102 LIST_ENTRY AllCacheLink;\r
f75a7f56 103 EFI_DNS6_CACHE_ENTRY DnsCache;\r
99c048ef 104} DNS6_CACHE;\r
105\r
106typedef struct {\r
107 LIST_ENTRY AllServerLink;\r
f75a7f56 108 EFI_IPv4_ADDRESS Dns4ServerIp;\r
99c048ef 109} DNS4_SERVER_IP;\r
110\r
111typedef struct {\r
112 LIST_ENTRY AllServerLink;\r
f75a7f56 113 EFI_IPv6_ADDRESS Dns6ServerIp;\r
99c048ef 114} DNS6_SERVER_IP;\r
115\r
116typedef struct {\r
cd2a6240 117 UINT32 RetryCounting;\r
99c048ef 118 UINT32 PacketToLive;\r
119 CHAR16 *QueryHostName;\r
120 EFI_IPv4_ADDRESS QueryIpAddress;\r
fcae1a99 121 BOOLEAN GeneralLookUp;\r
99c048ef 122 EFI_DNS4_COMPLETION_TOKEN *Token;\r
123} DNS4_TOKEN_ENTRY;\r
124\r
125typedef struct {\r
cd2a6240 126 UINT32 RetryCounting;\r
99c048ef 127 UINT32 PacketToLive;\r
128 CHAR16 *QueryHostName;\r
129 EFI_IPv6_ADDRESS QueryIpAddress;\r
fcae1a99 130 BOOLEAN GeneralLookUp;\r
99c048ef 131 EFI_DNS6_COMPLETION_TOKEN *Token;\r
132} DNS6_TOKEN_ENTRY;\r
133\r
134union _DNS_FLAGS{\r
135 struct {\r
136 UINT16 RCode:4;\r
137 UINT16 Zero:3;\r
138 UINT16 RA:1;\r
139 UINT16 RD:1;\r
140 UINT16 TC:1;\r
141 UINT16 AA:1;\r
142 UINT16 OpCode:4;\r
143 UINT16 QR:1;\r
144 } Bits;\r
145 UINT16 Uint16;\r
146};\r
147\r
148#define DNS_FLAGS_QR_QUERY 0\r
149#define DNS_FLAGS_QR_RESPONSE 1\r
150\r
151#define DNS_FLAGS_OPCODE_STANDARD 0\r
152#define DNS_FLAGS_OPCODE_INVERSE 1\r
153#define DNS_FLAGS_OPCODE_SERVER_STATE 2\r
154\r
155#define DNS_FLAGS_RCODE_NO_ERROR 0\r
156#define DNS_FLAGS_RCODE_NAME_ERROR 3\r
157\r
158typedef struct {\r
159 UINT16 Identification;\r
160 DNS_FLAGS Flags;\r
161 UINT16 QuestionsNum;\r
162 UINT16 AnswersNum;\r
163 UINT16 AuthorityNum;\r
164 UINT16 AditionalNum;\r
165} DNS_HEADER;\r
166\r
167typedef struct {\r
168 UINT16 Type;\r
169 UINT16 Class;\r
170} DNS_QUERY_SECTION;\r
171\r
172typedef struct {\r
173 UINT16 Type;\r
174 UINT16 Class;\r
175 UINT32 Ttl;\r
176 UINT16 DataLength;\r
177} DNS_ANSWER_SECTION;\r
178\r
99c048ef 179#define DNS4_DOMAIN L"in-addr.arpa"\r
180#define DNS6_DOMAIN L"IP6.ARPA"\r
181\r
182\r
183#pragma pack()\r
184\r
185/**\r
186 Remove TokenEntry from TokenMap.\r
187\r
188 @param[in] TokenMap All DNSv4 Token entrys.\r
189 @param[in] TokenEntry TokenEntry need to be removed.\r
190\r
191 @retval EFI_SUCCESS Remove TokenEntry from TokenMap sucessfully.\r
192 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
193\r
194**/\r
195EFI_STATUS\r
196Dns4RemoveTokenEntry (\r
197 IN NET_MAP *TokenMap,\r
198 IN DNS4_TOKEN_ENTRY *TokenEntry\r
199 );\r
200\r
201/**\r
202 Remove TokenEntry from TokenMap.\r
203\r
204 @param[in] TokenMap All DNSv6 Token entrys.\r
205 @param[in] TokenEntry TokenEntry need to be removed.\r
206\r
207 @retval EFI_SUCCESS Remove TokenEntry from TokenMap sucessfully.\r
208 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
f75a7f56 209\r
99c048ef 210**/\r
211EFI_STATUS\r
212Dns6RemoveTokenEntry (\r
213 IN NET_MAP *TokenMap,\r
214 IN DNS6_TOKEN_ENTRY *TokenEntry\r
215 );\r
216\r
217/**\r
218 This function cancle the token specified by Arg in the Map.\r
219\r
220 @param[in] Map Pointer to the NET_MAP.\r
221 @param[in] Item Pointer to the NET_MAP_ITEM.\r
222 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
223 the tokens in this Map will be cancelled.\r
224 This parameter is optional and may be NULL.\r
225\r
226 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
227 is not the same as that in the Item, if Arg is not\r
228 NULL.\r
229 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
230 cancelled.\r
231\r
232**/\r
233EFI_STATUS\r
234EFIAPI\r
235Dns4CancelTokens (\r
236 IN NET_MAP *Map,\r
237 IN NET_MAP_ITEM *Item,\r
238 IN VOID *Arg OPTIONAL\r
239 );\r
240\r
241/**\r
242 This function cancle the token specified by Arg in the Map.\r
243\r
244 @param[in] Map Pointer to the NET_MAP.\r
245 @param[in] Item Pointer to the NET_MAP_ITEM.\r
246 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
247 the tokens in this Map will be cancelled.\r
248 This parameter is optional and may be NULL.\r
249\r
250 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
251 is not the same as that in the Item, if Arg is not\r
252 NULL.\r
253 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
254 cancelled.\r
255\r
256**/\r
257EFI_STATUS\r
258EFIAPI\r
259Dns6CancelTokens (\r
260 IN NET_MAP *Map,\r
261 IN NET_MAP_ITEM *Item,\r
262 IN VOID *Arg OPTIONAL\r
263 );\r
264\r
265/**\r
266 Get the TokenEntry from the TokensMap.\r
267\r
268 @param[in] TokensMap All DNSv4 Token entrys\r
269 @param[in] Token Pointer to the token to be get.\r
270 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
271\r
272 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap sucessfully.\r
273 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
274\r
275**/\r
276EFI_STATUS\r
277EFIAPI\r
278GetDns4TokenEntry (\r
279 IN NET_MAP *TokensMap,\r
f75a7f56 280 IN EFI_DNS4_COMPLETION_TOKEN *Token,\r
99c048ef 281 OUT DNS4_TOKEN_ENTRY **TokenEntry\r
282 );\r
283\r
284/**\r
285 Get the TokenEntry from the TokensMap.\r
286\r
287 @param[in] TokensMap All DNSv6 Token entrys\r
288 @param[in] Token Pointer to the token to be get.\r
289 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
290\r
291 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap sucessfully.\r
292 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
293\r
294**/\r
295EFI_STATUS\r
296EFIAPI\r
297GetDns6TokenEntry (\r
298 IN NET_MAP *TokensMap,\r
f75a7f56 299 IN EFI_DNS6_COMPLETION_TOKEN *Token,\r
99c048ef 300 OUT DNS6_TOKEN_ENTRY **TokenEntry\r
301 );\r
302\r
303/**\r
304 Cancel DNS4 tokens from the DNS4 instance.\r
305\r
306 @param[in] Instance Pointer to the DNS instance context data.\r
307 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
308 tokens in this instance will be cancelled.\r
309 This parameter is optional and may be NULL.\r
310\r
311 @retval EFI_SUCCESS The Token is cancelled.\r
312 @retval EFI_NOT_FOUND The Token is not found.\r
313\r
314**/\r
315EFI_STATUS\r
316Dns4InstanceCancelToken (\r
317 IN DNS_INSTANCE *Instance,\r
318 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
319 );\r
320\r
321/**\r
322 Cancel DNS6 tokens from the DNS6 instance.\r
323\r
324 @param[in] Instance Pointer to the DNS instance context data.\r
325 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
326 tokens in this instance will be cancelled.\r
327 This parameter is optional and may be NULL.\r
328\r
329 @retval EFI_SUCCESS The Token is cancelled.\r
330 @retval EFI_NOT_FOUND The Token is not found.\r
331\r
332**/\r
333EFI_STATUS\r
334Dns6InstanceCancelToken (\r
335 IN DNS_INSTANCE *Instance,\r
336 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
337 );\r
338\r
339/**\r
340 Free the resource related to the configure parameters.\r
341\r
342 @param Config The DNS configure data\r
343\r
344**/\r
345VOID\r
346Dns4CleanConfigure (\r
347 IN OUT EFI_DNS4_CONFIG_DATA *Config\r
348 );\r
349\r
350/**\r
351 Free the resource related to the configure parameters.\r
352\r
353 @param Config The DNS configure data\r
354\r
355**/\r
356VOID\r
357Dns6CleanConfigure (\r
358 IN OUT EFI_DNS6_CONFIG_DATA *Config\r
359 );\r
360\r
361/**\r
362 Allocate memory for configure parameter such as timeout value for Dst,\r
363 then copy the configure parameter from Src to Dst.\r
364\r
365 @param[out] Dst The destination DHCP configure data.\r
366 @param[in] Src The source DHCP configure data.\r
367\r
368 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
369 @retval EFI_SUCCESS The configure is copied.\r
370\r
371**/\r
372EFI_STATUS\r
373Dns4CopyConfigure (\r
374 OUT EFI_DNS4_CONFIG_DATA *Dst,\r
375 IN EFI_DNS4_CONFIG_DATA *Src\r
376 );\r
377\r
378/**\r
379 Allocate memory for configure parameter such as timeout value for Dst,\r
380 then copy the configure parameter from Src to Dst.\r
381\r
382 @param[out] Dst The destination DHCP configure data.\r
383 @param[in] Src The source DHCP configure data.\r
384\r
385 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
386 @retval EFI_SUCCESS The configure is copied.\r
387\r
388**/\r
389EFI_STATUS\r
390Dns6CopyConfigure (\r
391 OUT EFI_DNS6_CONFIG_DATA *Dst,\r
392 IN EFI_DNS6_CONFIG_DATA *Src\r
393 );\r
394\r
395/**\r
396 Callback of Dns packet. Does nothing.\r
397\r
398 @param Arg The context.\r
399\r
400**/\r
401VOID\r
402EFIAPI\r
403DnsDummyExtFree (\r
404 IN VOID *Arg\r
405 );\r
406\r
407/**\r
408 Poll the UDP to get the IP4 default address, which may be retrieved\r
f75a7f56
LG
409 by DHCP.\r
410\r
411 The default time out value is 5 seconds. If IP has retrieved the default address,\r
99c048ef 412 the UDP is reconfigured.\r
413\r
414 @param Instance The DNS instance\r
415 @param UdpIo The UDP_IO to poll\r
416 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
417\r
418 @retval TRUE The default address is retrieved and UDP is reconfigured.\r
419 @retval FALSE Some error occured.\r
420\r
421**/\r
422BOOLEAN\r
423Dns4GetMapping (\r
424 IN DNS_INSTANCE *Instance,\r
425 IN UDP_IO *UdpIo,\r
426 IN EFI_UDP4_CONFIG_DATA *UdpCfgData\r
427 );\r
428\r
429/**\r
430 Configure the opened Udp6 instance until the corresponding Ip6 instance\r
431 has been configured.\r
432\r
433 @param Instance The DNS instance\r
434 @param UdpIo The UDP_IO to poll\r
435 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
436\r
437 @retval TRUE Configure the Udp6 instance successfully.\r
438 @retval FALSE Some error occured.\r
439\r
440**/\r
441BOOLEAN\r
442Dns6GetMapping (\r
443 IN DNS_INSTANCE *Instance,\r
444 IN UDP_IO *UdpIo,\r
445 IN EFI_UDP6_CONFIG_DATA *UdpCfgData\r
446 );\r
447\r
448/**\r
449 Configure the UDP.\r
f75a7f56 450\r
99c048ef 451 @param Instance The DNS session\r
452 @param UdpIo The UDP_IO instance\r
f75a7f56 453\r
99c048ef 454 @retval EFI_SUCCESS The UDP is successfully configured for the\r
455 session.\r
456\r
457**/\r
458EFI_STATUS\r
459Dns4ConfigUdp (\r
460 IN DNS_INSTANCE *Instance,\r
461 IN UDP_IO *UdpIo\r
462 );\r
463\r
464/**\r
465 Configure the UDP.\r
f75a7f56 466\r
99c048ef 467 @param Instance The DNS session\r
468 @param UdpIo The UDP_IO instance\r
469\r
470 @retval EFI_SUCCESS The UDP is successfully configured for the\r
471 session.\r
472\r
473**/\r
474EFI_STATUS\r
475Dns6ConfigUdp (\r
476 IN DNS_INSTANCE *Instance,\r
477 IN UDP_IO *UdpIo\r
478 );\r
479\r
480/**\r
481 Update Dns4 cache to shared list of caches of all DNSv4 instances.\r
f75a7f56 482\r
99c048ef 483 @param Dns4CacheList All Dns4 cache list.\r
f75a7f56
LG
484 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
485 If TRUE, this function will delete matching DNS Cache entry.\r
486 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 487 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
488 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
489\r
490 @retval EFI_SUCCESS Update Dns4 cache successfully.\r
f75a7f56
LG
491 @retval Others Failed to update Dns4 cache.\r
492\r
99c048ef 493**/\r
494EFI_STATUS\r
495EFIAPI\r
496UpdateDns4Cache (\r
497 IN LIST_ENTRY *Dns4CacheList,\r
498 IN BOOLEAN DeleteFlag,\r
499 IN BOOLEAN Override,\r
500 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
501 );\r
502\r
503/**\r
f75a7f56 504 Update Dns6 cache to shared list of caches of all DNSv6 instances.\r
99c048ef 505\r
506 @param Dns6CacheList All Dns6 cache list.\r
f75a7f56
LG
507 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
508 If TRUE, this function will delete matching DNS Cache entry.\r
509 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 510 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
511 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
f75a7f56 512\r
99c048ef 513 @retval EFI_SUCCESS Update Dns6 cache successfully.\r
514 @retval Others Failed to update Dns6 cache.\r
f75a7f56 515**/\r
99c048ef 516EFI_STATUS\r
517EFIAPI\r
518UpdateDns6Cache (\r
519 IN LIST_ENTRY *Dns6CacheList,\r
520 IN BOOLEAN DeleteFlag,\r
521 IN BOOLEAN Override,\r
522 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
523 );\r
524\r
525/**\r
f75a7f56 526 Add Dns4 ServerIp to common list of addresses of all configured DNSv4 server.\r
99c048ef 527\r
f75a7f56
LG
528 @param Dns4ServerList Common list of addresses of all configured DNSv4 server.\r
529 @param ServerIp DNS server Ip.\r
99c048ef 530\r
531 @retval EFI_SUCCESS Add Dns4 ServerIp to common list successfully.\r
532 @retval Others Failed to add Dns4 ServerIp to common list.\r
f75a7f56 533\r
99c048ef 534**/\r
535EFI_STATUS\r
536EFIAPI\r
537AddDns4ServerIp (\r
538 IN LIST_ENTRY *Dns4ServerList,\r
539 IN EFI_IPv4_ADDRESS ServerIp\r
540 );\r
541\r
542/**\r
f75a7f56 543 Add Dns6 ServerIp to common list of addresses of all configured DNSv6 server.\r
99c048ef 544\r
f75a7f56
LG
545 @param Dns6ServerList Common list of addresses of all configured DNSv6 server.\r
546 @param ServerIp DNS server Ip.\r
99c048ef 547\r
548 @retval EFI_SUCCESS Add Dns6 ServerIp to common list successfully.\r
549 @retval Others Failed to add Dns6 ServerIp to common list.\r
f75a7f56
LG
550\r
551**/\r
99c048ef 552EFI_STATUS\r
553EFIAPI\r
554AddDns6ServerIp (\r
555 IN LIST_ENTRY *Dns6ServerList,\r
556 IN EFI_IPv6_ADDRESS ServerIp\r
557 );\r
558\r
559/**\r
560 Find out whether the response is valid or invalid.\r
561\r
f75a7f56
LG
562 @param TokensMap All DNS transmittal Tokens entry.\r
563 @param Identification Identification for queried packet.\r
99c048ef 564 @param Type Type for queried packet.\r
3900a743 565 @param Class Class for queried packet.\r
99c048ef 566 @param Item Return corresponding Token entry.\r
567\r
568 @retval TRUE The response is valid.\r
569 @retval FALSE The response is invalid.\r
f75a7f56
LG
570\r
571**/\r
99c048ef 572BOOLEAN\r
573IsValidDnsResponse (\r
574 IN NET_MAP *TokensMap,\r
575 IN UINT16 Identification,\r
576 IN UINT16 Type,\r
3900a743 577 IN UINT16 Class,\r
99c048ef 578 OUT NET_MAP_ITEM **Item\r
579 );\r
580\r
581/**\r
582 Parse Dns Response.\r
583\r
584 @param Instance The DNS instance\r
585 @param RxString Received buffer.\r
84110bbe 586 @param Length Received buffer length.\r
f75a7f56
LG
587 @param Completed Flag to indicate that Dns response is valid.\r
588\r
99c048ef 589 @retval EFI_SUCCESS Parse Dns Response successfully.\r
590 @retval Others Failed to parse Dns Response.\r
f75a7f56
LG
591\r
592**/\r
99c048ef 593EFI_STATUS\r
594ParseDnsResponse (\r
595 IN OUT DNS_INSTANCE *Instance,\r
596 IN UINT8 *RxString,\r
84110bbe 597 IN UINT32 Length,\r
99c048ef 598 OUT BOOLEAN *Completed\r
599 );\r
600\r
601/**\r
602 Parse response packet.\r
603\r
604 @param Packet The packets received.\r
605 @param EndPoint The local/remote UDP access point\r
606 @param IoStatus The status of the UDP receive\r
607 @param Context The opaque parameter to the function.\r
608\r
f75a7f56 609**/\r
99c048ef 610VOID\r
611EFIAPI\r
612DnsOnPacketReceived (\r
613 NET_BUF *Packet,\r
614 UDP_END_POINT *EndPoint,\r
615 EFI_STATUS IoStatus,\r
616 VOID *Context\r
617 );\r
618\r
619/**\r
620 Release the net buffer when packet is sent.\r
621\r
622 @param Packet The packets received.\r
623 @param EndPoint The local/remote UDP access point\r
624 @param IoStatus The status of the UDP receive\r
625 @param Context The opaque parameter to the function.\r
626\r
627**/\r
628VOID\r
629EFIAPI\r
630DnsOnPacketSent (\r
631 NET_BUF *Packet,\r
632 UDP_END_POINT *EndPoint,\r
633 EFI_STATUS IoStatus,\r
634 VOID *Context\r
635 );\r
636\r
637/**\r
638 Query request information.\r
639\r
640 @param Instance The DNS instance\r
641 @param Packet The packet for querying request information.\r
642\r
643 @retval EFI_SUCCESS Query request information successfully.\r
644 @retval Others Failed to query request information.\r
645\r
646**/\r
647EFI_STATUS\r
648DoDnsQuery (\r
649 IN DNS_INSTANCE *Instance,\r
650 IN NET_BUF *Packet\r
651 );\r
652\r
653/**\r
fcae1a99 654 Construct the Packet according query section.\r
99c048ef 655\r
656 @param Instance The DNS instance\r
f75a7f56
LG
657 @param QueryName Queried Name\r
658 @param Type Queried Type\r
659 @param Class Queried Class\r
fcae1a99 660 @param Packet The packet for query\r
99c048ef 661\r
662 @retval EFI_SUCCESS The packet is constructed.\r
663 @retval Others Failed to construct the Packet.\r
664\r
665**/\r
666EFI_STATUS\r
fcae1a99 667ConstructDNSQuery (\r
99c048ef 668 IN DNS_INSTANCE *Instance,\r
fcae1a99 669 IN CHAR8 *QueryName,\r
99c048ef 670 IN UINT16 Type,\r
fcae1a99 671 IN UINT16 Class,\r
99c048ef 672 OUT NET_BUF **Packet\r
673 );\r
674\r
675/**\r
676 Retransmit the packet.\r
677\r
678 @param Instance The DNS instance\r
f75a7f56 679 @param Packet Retransmit the packet\r
99c048ef 680\r
681 @retval EFI_SUCCESS The packet is retransmitted.\r
682 @retval Others Failed to retransmit.\r
683\r
684**/\r
685EFI_STATUS\r
686DnsRetransmit (\r
687 IN DNS_INSTANCE *Instance,\r
688 IN NET_BUF *Packet\r
689 );\r
690\r
691/**\r
692 The timer ticking function for the DNS service.\r
693\r
694 @param Event The ticking event\r
695 @param Context The DNS service instance\r
696\r
697**/\r
698VOID\r
699EFIAPI\r
700DnsOnTimerRetransmit (\r
701 IN EFI_EVENT Event,\r
702 IN VOID *Context\r
703 );\r
704\r
705/**\r
706 The timer ticking function for the DNS driver.\r
707\r
708 @param Event The ticking event\r
709 @param Context NULL\r
710\r
711**/\r
712VOID\r
713EFIAPI\r
714DnsOnTimerUpdate (\r
715 IN EFI_EVENT Event,\r
716 IN VOID *Context\r
717 );\r
718\r
719\r
720/**\r
0f4e123f 721 Retrieve mode data of this DNS instance.\r
99c048ef 722\r
0f4e123f 723 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 724\r
0f4e123f
JW
725 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
726 @param[out] DnsModeData Point to the mode data.\r
99c048ef 727\r
0f4e123f
JW
728 @retval EFI_SUCCESS The operation completed successfully.\r
729 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
730 is available because this instance has not been\r
731 configured.\r
732 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
733 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 734**/\r
735EFI_STATUS\r
736EFIAPI\r
737Dns4GetModeData (\r
738 IN EFI_DNS4_PROTOCOL *This,\r
739 OUT EFI_DNS4_MODE_DATA *DnsModeData\r
740 );\r
741\r
742/**\r
0f4e123f
JW
743 Configure this DNS instance.\r
744\r
745 This function is used to configure DNS mode data for this DNS instance.\r
746\r
747 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
748 @param[in] DnsConfigData Point to the Configuration data.\r
749\r
750 @retval EFI_SUCCESS The operation completed successfully.\r
751 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
752 @retval EFI_INVALID_PARAMTER Thisis NULL.\r
f75a7f56 753 The StationIp address provided in DnsConfigData is not a\r
0f4e123f
JW
754 valid unicast.\r
755 DnsServerList is NULL while DnsServerListCount\r
756 is not ZERO.\r
757 DnsServerListCount is ZERO while DnsServerList\r
758 is not NULL\r
759 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be\r
760 allocated.\r
761 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
762 EFI DNSv4 Protocol instance is not configured.\r
f75a7f56
LG
763 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
764 reconfigure the instance the caller must call Configure()\r
0f4e123f 765 with NULL first to return driver to unconfigured state.\r
99c048ef 766**/\r
767EFI_STATUS\r
768EFIAPI\r
769Dns4Configure (\r
770 IN EFI_DNS4_PROTOCOL *This,\r
771 IN EFI_DNS4_CONFIG_DATA *DnsConfigData\r
772 );\r
773\r
774/**\r
0f4e123f
JW
775 Host name to host address translation.\r
776\r
777 The HostNameToIp () function is used to translate the host name to host IP address. A\r
778 type A query is used to get the one or more IP addresses for this host.\r
779\r
780 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
781 @param[in] HostName Host name.\r
782 @param[in] Token Point to the completion token to translate host name\r
783 to host address.\r
784\r
785 @retval EFI_SUCCESS The operation completed successfully.\r
786 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
787 This is NULL.\r
788 Token is NULL.\r
789 Token.Event is NULL.\r
790 HostName is NULL. HostName string is unsupported format.\r
791 @retval EFI_NO_MAPPING There's no source address is available for use.\r
792 @retval EFI_NOT_STARTED This instance has not been started.\r
99c048ef 793**/\r
794EFI_STATUS\r
795EFIAPI\r
796Dns4HostNameToIp (\r
797 IN EFI_DNS4_PROTOCOL *This,\r
798 IN CHAR16 *HostName,\r
799 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
800 );\r
801\r
802/**\r
0f4e123f
JW
803 IPv4 address to host name translation also known as Reverse DNS lookup.\r
804\r
f75a7f56 805 The IpToHostName() function is used to translate the host address to host name. A type PTR\r
0f4e123f
JW
806 query is used to get the primary name of the host. Support of this function is optional.\r
807\r
808 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
809 @param[in] IpAddress Ip Address.\r
810 @param[in] Token Point to the completion token to translate host\r
811 address to host name.\r
812\r
813 @retval EFI_SUCCESS The operation completed successfully.\r
814 @retval EFI_UNSUPPORTED This function is not supported.\r
815 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
816 This is NULL.\r
817 Token is NULL.\r
818 Token.Event is NULL.\r
819 IpAddress is not valid IP address .\r
820 @retval EFI_NO_MAPPING There's no source address is available for use.\r
821 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
822 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 823**/\r
824EFI_STATUS\r
825EFIAPI\r
826Dns4IpToHostName (\r
827 IN EFI_DNS4_PROTOCOL *This,\r
828 IN EFI_IPv4_ADDRESS IpAddress,\r
829 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
830 );\r
831\r
832/**\r
f75a7f56 833 Retrieve arbitrary information from the DNS server.\r
0f4e123f
JW
834\r
835 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
836 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
837 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
838 required information. The function is optional.\r
839\r
840 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
841 @param[in] QName Pointer to Query Name.\r
842 @param[in] QType Query Type.\r
843 @param[in] QClass Query Name.\r
844 @param[in] Token Point to the completion token to retrieve arbitrary\r
845 information.\r
846\r
847 @retval EFI_SUCCESS The operation completed successfully.\r
848 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
849 QType is not supported\r
850 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
851 This is NULL.\r
852 Token is NULL.\r
853 Token.Event is NULL.\r
854 QName is NULL.\r
855 @retval EFI_NO_MAPPING There's no source address is available for use.\r
856 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
857 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 858**/\r
859EFI_STATUS\r
860EFIAPI\r
861Dns4GeneralLookUp (\r
862 IN EFI_DNS4_PROTOCOL *This,\r
863 IN CHAR8 *QName,\r
f75a7f56 864 IN UINT16 QType,\r
99c048ef 865 IN UINT16 QClass,\r
866 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
867 );\r
868\r
869/**\r
0f4e123f
JW
870 This function is to update the DNS Cache.\r
871\r
872 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
873 can be normally dynamically updated after the DNS resolve succeeds. This function\r
874 provided capability to manually add/delete/modify the DNS cache.\r
875\r
876 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
877 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
878 DNS Cahce. If TRUE, this function will delete\r
879 matching DNS Cache entry.\r
880 @param[in] Override If TRUE, the maching DNS cache entry will be\r
881 overwritten with the supplied parameter. If FALSE,\r
882 EFI_ACCESS_DENIED will be returned if the entry to\r
883 be added is already existed.\r
884 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
885\r
886 @retval EFI_SUCCESS The operation completed successfully.\r
887 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
888 This is NULL.\r
889 DnsCacheEntry.HostName is NULL.\r
890 DnsCacheEntry.IpAddress is NULL.\r
891 DnsCacheEntry.Timeout is zero.\r
892 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
893 not TRUE.\r
99c048ef 894**/\r
895EFI_STATUS\r
896EFIAPI\r
897Dns4UpdateDnsCache (\r
898 IN EFI_DNS4_PROTOCOL *This,\r
899 IN BOOLEAN DeleteFlag,\r
900 IN BOOLEAN Override,\r
901 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
902 );\r
903\r
904/**\r
0f4e123f
JW
905 Polls for incoming data packets and processes outgoing data packets.\r
906\r
907 The Poll() function can be used by network drivers and applications to increase the\r
908 rate that data packets are moved between the communications device and the transmit\r
909 and receive queues.\r
910 In some systems, the periodic timer event in the managed network driver may not poll\r
911 the underlying communications device fast enough to transmit and/or receive all data\r
912 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
913 applications that are experiencing packet loss should try calling the Poll()\r
914 function more often.\r
915\r
916 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
917\r
918 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
919 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
920 @retval EFI_INVALID_PARAMETER This is NULL.\r
921 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
922 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
923 queue. Consider increasing the polling rate.\r
99c048ef 924**/\r
925EFI_STATUS\r
926EFIAPI\r
927Dns4Poll (\r
928 IN EFI_DNS4_PROTOCOL *This\r
929 );\r
930\r
931/**\r
0f4e123f
JW
932 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
933 general look up behavior.\r
934\r
935 The Cancel() function is used to abort a pending resolution request. After calling\r
936 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
937 signaled. If the token is not in one of the queues, which usually means that the\r
938 asynchronous operation has completed, this function will not signal the token and\r
939 EFI_NOT_FOUND is returned.\r
940\r
941 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
942 @param[in] Token Pointer to a token that has been issued by\r
943 EFI_DNS4_PROTOCOL.HostNameToIp (),\r
944 EFI_DNS4_PROTOCOL.IpToHostName() or\r
945 EFI_DNS4_PROTOCOL.GeneralLookup().\r
946 If NULL, all pending tokens are aborted.\r
947\r
948 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
949 @retval EFI_NOT_STARTED This EFI DNS4 Protocol instance has not been started.\r
950 @retval EFI_INVALID_PARAMETER This is NULL.\r
951 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
952 operation was not found in the transmit queue. It\r
953 was either completed or was not issued by\r
954 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 955**/\r
956EFI_STATUS\r
957EFIAPI\r
958Dns4Cancel (\r
959 IN EFI_DNS4_PROTOCOL *This,\r
960 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
961 );\r
962\r
963\r
964/**\r
0f4e123f 965 Retrieve mode data of this DNS instance.\r
99c048ef 966\r
0f4e123f 967 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 968\r
0f4e123f 969 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 970 @param[out] DnsModeData Pointer to the caller-allocated storage for the\r
0f4e123f 971 EFI_DNS6_MODE_DATA data.\r
99c048ef 972\r
0f4e123f
JW
973 @retval EFI_SUCCESS The operation completed successfully.\r
974 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
975 is available because this instance has not been\r
976 configured.\r
977 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
978 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 979**/\r
980EFI_STATUS\r
981EFIAPI\r
982Dns6GetModeData (\r
983 IN EFI_DNS6_PROTOCOL *This,\r
984 OUT EFI_DNS6_MODE_DATA *DnsModeData\r
985 );\r
986\r
987/**\r
0f4e123f
JW
988 Configure this DNS instance.\r
989\r
990 The Configure() function is used to set and change the configuration data for this\r
991 EFI DNSv6 Protocol driver instance. Reset the DNS instance if DnsConfigData is NULL.\r
992\r
993 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 994 @param[in] DnsConfigData Pointer to the configuration data structure. All associated\r
0f4e123f
JW
995 storage to be allocated and released by caller.\r
996\r
997 @retval EFI_SUCCESS The operation completed successfully.\r
998 @retval EFI_INVALID_PARAMTER This is NULL.\r
999 The StationIp address provided in DnsConfigData is not zero and not a valid unicast.\r
1000 DnsServerList is NULL while DnsServerList Count is not ZERO.\r
1001 DnsServerList Count is ZERO while DnsServerList is not NULL.\r
1002 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be allocated.\r
1003 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
1004 EFI DNSv6 Protocol instance is not configured.\r
1005 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
f75a7f56
LG
1006 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
1007 reconfigure the instance the caller must call Configure() with\r
0f4e123f 1008 NULL first to return driver to unconfigured state.\r
99c048ef 1009**/\r
1010EFI_STATUS\r
1011EFIAPI\r
1012Dns6Configure (\r
1013 IN EFI_DNS6_PROTOCOL *This,\r
1014 IN EFI_DNS6_CONFIG_DATA *DnsConfigData\r
1015 );\r
1016\r
1017/**\r
0f4e123f
JW
1018 Host name to host address translation.\r
1019\r
1020 The HostNameToIp () function is used to translate the host name to host IP address. A\r
1021 type AAAA query is used to get the one or more IPv6 addresses for this host.\r
1022\r
1023 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1024 @param[in] HostName Host name.\r
1025 @param[in] Token Point to the completion token to translate host name\r
1026 to host address.\r
1027\r
1028 @retval EFI_SUCCESS The operation completed successfully.\r
1029 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1030 This is NULL.\r
1031 Token is NULL.\r
1032 Token.Event is NULL.\r
1033 HostName is NULL or buffer contained unsupported characters.\r
1034 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1035 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
1036 @retval EFI_NOT_STARTED This instance has not been started.\r
1037 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1038**/\r
1039EFI_STATUS\r
1040EFIAPI\r
1041Dns6HostNameToIp (\r
1042 IN EFI_DNS6_PROTOCOL *This,\r
1043 IN CHAR16 *HostName,\r
1044 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1045 );\r
1046\r
1047/**\r
0f4e123f
JW
1048 Host address to host name translation.\r
1049\r
1050 The IpToHostName () function is used to translate the host address to host name. A\r
1051 type PTR query is used to get the primary name of the host. Implementation can choose\r
1052 to support this function or not.\r
1053\r
1054 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1055 @param[in] IpAddress Ip Address.\r
1056 @param[in] Token Point to the completion token to translate host\r
1057 address to host name.\r
1058\r
1059 @retval EFI_SUCCESS The operation completed successfully.\r
1060 @retval EFI_UNSUPPORTED This function is not supported.\r
1061 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1062 This is NULL.\r
1063 Token is NULL.\r
1064 Token.Event is NULL.\r
1065 IpAddress is not valid IP address.\r
1066 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1067 @retval EFI_NOT_STARTED This instance has not been started.\r
1068 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1069**/\r
1070EFI_STATUS\r
1071EFIAPI\r
1072Dns6IpToHostName (\r
1073 IN EFI_DNS6_PROTOCOL *This,\r
1074 IN EFI_IPv6_ADDRESS IpAddress,\r
1075 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1076 );\r
1077\r
1078/**\r
0f4e123f
JW
1079 This function provides capability to retrieve arbitrary information from the DNS\r
1080 server.\r
1081\r
1082 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
1083 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
1084 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
1085 required information. The function is optional. Implementation can choose to support\r
1086 it or not.\r
1087\r
1088 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1089 @param[in] QName Pointer to Query Name.\r
1090 @param[in] QType Query Type.\r
1091 @param[in] QClass Query Name.\r
1092 @param[in] Token Point to the completion token to retrieve arbitrary\r
1093 information.\r
1094\r
1095 @retval EFI_SUCCESS The operation completed successfully.\r
1096 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
1097 QType is not supported\r
1098 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1099 This is NULL.\r
1100 Token is NULL.\r
1101 Token.Event is NULL.\r
1102 QName is NULL.\r
1103 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1104 @retval EFI_NOT_STARTED This instance has not been started.\r
1105 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1106**/\r
1107EFI_STATUS\r
1108EFIAPI\r
1109Dns6GeneralLookUp (\r
1110 IN EFI_DNS6_PROTOCOL *This,\r
1111 IN CHAR8 *QName,\r
f75a7f56 1112 IN UINT16 QType,\r
99c048ef 1113 IN UINT16 QClass,\r
1114 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1115 );\r
1116\r
1117/**\r
0f4e123f
JW
1118 This function is to update the DNS Cache.\r
1119\r
1120 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
1121 can be normally dynamically updated after the DNS resolve succeeds. This function\r
1122 provided capability to manually add/delete/modify the DNS cache.\r
1123\r
1124 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1125 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
1126 DNS Cahce. If TRUE, this function will delete\r
1127 matching DNS Cache entry.\r
1128 @param[in] Override If TRUE, the maching DNS cache entry will be\r
1129 overwritten with the supplied parameter. If FALSE,\r
1130 EFI_ACCESS_DENIED will be returned if the entry to\r
1131 be added is already existed.\r
1132 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
1133\r
1134 @retval EFI_SUCCESS The operation completed successfully.\r
1135 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1136 This is NULL.\r
1137 DnsCacheEntry.HostName is NULL.\r
1138 DnsCacheEntry.IpAddress is NULL.\r
1139 DnsCacheEntry.Timeout is zero.\r
1140 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
1141 not TRUE.\r
1142 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 1143**/\r
1144EFI_STATUS\r
1145EFIAPI\r
1146Dns6UpdateDnsCache (\r
1147 IN EFI_DNS6_PROTOCOL *This,\r
1148 IN BOOLEAN DeleteFlag,\r
1149 IN BOOLEAN Override,\r
1150 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
1151 );\r
1152\r
1153/**\r
0f4e123f
JW
1154 Polls for incoming data packets and processes outgoing data packets.\r
1155\r
1156 The Poll() function can be used by network drivers and applications to increase the\r
1157 rate that data packets are moved between the communications device and the transmit\r
1158 and receive queues.\r
1159\r
1160 In some systems, the periodic timer event in the managed network driver may not poll\r
1161 the underlying communications device fast enough to transmit and/or receive all data\r
1162 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
1163 applications that are experiencing packet loss should try calling the Poll()\r
1164 function more often.\r
1165\r
1166 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1167\r
1168 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1169 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
1170 @retval EFI_INVALID_PARAMETER This is NULL.\r
1171 @retval EFI_NO_MAPPING There is no source address is available for use.\r
1172 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
1173 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
1174 queue. Consider increasing the polling rate.\r
99c048ef 1175**/\r
1176EFI_STATUS\r
1177EFIAPI\r
1178Dns6Poll (\r
1179 IN EFI_DNS6_PROTOCOL *This\r
1180 );\r
1181\r
1182/**\r
0f4e123f
JW
1183 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
1184 general look up behavior.\r
1185\r
1186 The Cancel() function is used to abort a pending resolution request. After calling\r
1187 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
1188 signaled. If the token is not in one of the queues, which usually means that the\r
1189 asynchronous operation has completed, this function will not signal the token and\r
1190 EFI_NOT_FOUND is returned.\r
1191\r
1192 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1193 @param[in] Token Pointer to a token that has been issued by\r
1194 EFI_DNS6_PROTOCOL.HostNameToIp (),\r
1195 EFI_DNS6_PROTOCOL.IpToHostName() or\r
1196 EFI_DNS6_PROTOCOL.GeneralLookup().\r
1197 If NULL, all pending tokens are aborted.\r
1198\r
1199 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1200 @retval EFI_NOT_STARTED This EFI DNS6 Protocol instance has not been started.\r
1201 @retval EFI_INVALID_PARAMETER This is NULL.\r
1202 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1203 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
1204 operation was not found in the transmit queue. It\r
1205 was either completed or was not issued by\r
1206 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 1207**/\r
1208EFI_STATUS\r
1209EFIAPI\r
1210Dns6Cancel (\r
1211 IN EFI_DNS6_PROTOCOL *This,\r
1212 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1213 );\r
1214\r
1215#endif\r