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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
ecf98fbc 5SPDX-License-Identifier: BSD-2-Clause-Patent\r
99c048ef 6\r
7**/\r
8\r
9#ifndef __EFI_DNS_IMPL_H_\r
10#define __EFI_DNS_IMPL_H_\r
11\r
12#include <Uefi.h>\r
13\r
14//\r
15// Libraries classes\r
16//\r
17#include <Library/BaseLib.h>\r
18#include <Library/UefiLib.h>\r
19#include <Library/UefiBootServicesTableLib.h>\r
20#include <Library/UefiDriverEntryPoint.h>\r
21#include <Library/UefiRuntimeServicesTableLib.h>\r
22#include <Library/BaseMemoryLib.h>\r
23#include <Library/MemoryAllocationLib.h>\r
24#include <Library/NetLib.h>\r
25#include <Library/DebugLib.h>\r
26#include <Library/DpcLib.h>\r
27#include <Library/PrintLib.h>\r
28#include <Library/UdpIoLib.h>\r
29\r
30//\r
31// UEFI Driver Model Protocols\r
32//\r
33#include <Protocol/DriverBinding.h>\r
34#include <Protocol/ComponentName2.h>\r
35#include <Protocol/ComponentName.h>\r
36\r
37#include <Protocol/Udp4.h>\r
38#include <Protocol/Dhcp4.h>\r
39#include <Protocol/Dns4.h>\r
40\r
41#include <Protocol/Udp6.h>\r
42#include <Protocol/Dhcp6.h>\r
43#include <Protocol/Dns6.h>\r
44\r
45#include <Protocol/Ip4Config2.h>\r
46\r
47#include "DnsDriver.h"\r
48#include "DnsDhcp.h"\r
49\r
50//\r
51// Driver Version\r
52//\r
53#define DNS_VERSION 0x00000000\r
54\r
55//\r
56// Protocol instances\r
57//\r
58extern EFI_COMPONENT_NAME_PROTOCOL gDnsComponentName;\r
59extern EFI_COMPONENT_NAME2_PROTOCOL gDnsComponentName2;\r
60extern EFI_UNICODE_STRING_TABLE *gDnsControllerNameTable;\r
61\r
62extern EFI_DRIVER_BINDING_PROTOCOL gDns4DriverBinding;\r
63extern EFI_SERVICE_BINDING_PROTOCOL mDns4ServiceBinding;\r
64extern EFI_DNS4_PROTOCOL mDns4Protocol;\r
65\r
66extern EFI_DRIVER_BINDING_PROTOCOL gDns6DriverBinding;\r
67extern EFI_SERVICE_BINDING_PROTOCOL mDns6ServiceBinding;\r
68extern EFI_DNS6_PROTOCOL mDns6Protocol;\r
69\r
70//\r
71// DNS related\r
72//\r
d1050b9d 73#define DNS_SERVER_PORT 53\r
99c048ef 74\r
d1050b9d
MK
75#define DNS_PROTOCOL_UDP EFI_IP_PROTO_UDP\r
76#define DNS_PROTOCOL_TCP EFI_IP_PROTO_TCP\r
99c048ef 77\r
d1050b9d
MK
78#define DNS_STATE_UNCONFIGED 0\r
79#define DNS_STATE_CONFIGED 1\r
80#define DNS_STATE_DESTROY 2\r
99c048ef 81\r
d1050b9d 82#define DNS_DEFAULT_TIMEOUT 2\r
99c048ef 83\r
d1050b9d 84#define DNS_TIME_TO_GETMAP 5\r
99c048ef 85\r
86#pragma pack(1)\r
87\r
d1050b9d 88typedef union _DNS_FLAGS DNS_FLAGS;\r
99c048ef 89\r
90typedef struct {\r
d1050b9d
MK
91 LIST_ENTRY AllCacheLink;\r
92 EFI_DNS4_CACHE_ENTRY DnsCache;\r
99c048ef 93} DNS4_CACHE;\r
94\r
95typedef struct {\r
d1050b9d
MK
96 LIST_ENTRY AllCacheLink;\r
97 EFI_DNS6_CACHE_ENTRY DnsCache;\r
99c048ef 98} DNS6_CACHE;\r
99\r
100typedef struct {\r
d1050b9d
MK
101 LIST_ENTRY AllServerLink;\r
102 EFI_IPv4_ADDRESS Dns4ServerIp;\r
99c048ef 103} DNS4_SERVER_IP;\r
104\r
105typedef struct {\r
d1050b9d
MK
106 LIST_ENTRY AllServerLink;\r
107 EFI_IPv6_ADDRESS Dns6ServerIp;\r
99c048ef 108} DNS6_SERVER_IP;\r
109\r
110typedef struct {\r
d1050b9d
MK
111 UINT32 RetryCounting;\r
112 UINT32 PacketToLive;\r
113 CHAR16 *QueryHostName;\r
114 EFI_IPv4_ADDRESS QueryIpAddress;\r
115 BOOLEAN GeneralLookUp;\r
116 EFI_DNS4_COMPLETION_TOKEN *Token;\r
99c048ef 117} DNS4_TOKEN_ENTRY;\r
118\r
119typedef struct {\r
d1050b9d
MK
120 UINT32 RetryCounting;\r
121 UINT32 PacketToLive;\r
122 CHAR16 *QueryHostName;\r
123 EFI_IPv6_ADDRESS QueryIpAddress;\r
124 BOOLEAN GeneralLookUp;\r
125 EFI_DNS6_COMPLETION_TOKEN *Token;\r
99c048ef 126} DNS6_TOKEN_ENTRY;\r
127\r
4ad1bd63 128union _DNS_FLAGS {\r
99c048ef 129 struct {\r
d1050b9d
MK
130 UINT16 RCode : 4;\r
131 UINT16 Zero : 3;\r
132 UINT16 RA : 1;\r
133 UINT16 RD : 1;\r
134 UINT16 TC : 1;\r
135 UINT16 AA : 1;\r
136 UINT16 OpCode : 4;\r
137 UINT16 QR : 1;\r
99c048ef 138 } Bits;\r
d1050b9d 139 UINT16 Uint16;\r
99c048ef 140};\r
141\r
142#define DNS_FLAGS_QR_QUERY 0\r
143#define DNS_FLAGS_QR_RESPONSE 1\r
144\r
d1050b9d
MK
145#define DNS_FLAGS_OPCODE_STANDARD 0\r
146#define DNS_FLAGS_OPCODE_INVERSE 1\r
147#define DNS_FLAGS_OPCODE_SERVER_STATE 2\r
99c048ef 148\r
149#define DNS_FLAGS_RCODE_NO_ERROR 0\r
150#define DNS_FLAGS_RCODE_NAME_ERROR 3\r
151\r
152typedef struct {\r
d1050b9d
MK
153 UINT16 Identification;\r
154 DNS_FLAGS Flags;\r
155 UINT16 QuestionsNum;\r
156 UINT16 AnswersNum;\r
157 UINT16 AuthorityNum;\r
158 UINT16 AditionalNum;\r
99c048ef 159} DNS_HEADER;\r
160\r
161typedef struct {\r
d1050b9d
MK
162 UINT16 Type;\r
163 UINT16 Class;\r
99c048ef 164} DNS_QUERY_SECTION;\r
165\r
166typedef struct {\r
d1050b9d
MK
167 UINT16 Type;\r
168 UINT16 Class;\r
169 UINT32 Ttl;\r
170 UINT16 DataLength;\r
99c048ef 171} DNS_ANSWER_SECTION;\r
172\r
99c048ef 173#define DNS4_DOMAIN L"in-addr.arpa"\r
174#define DNS6_DOMAIN L"IP6.ARPA"\r
175\r
99c048ef 176#pragma pack()\r
177\r
178/**\r
179 Remove TokenEntry from TokenMap.\r
180\r
181 @param[in] TokenMap All DNSv4 Token entrys.\r
182 @param[in] TokenEntry TokenEntry need to be removed.\r
183\r
81a46615 184 @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r
99c048ef 185 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
186\r
187**/\r
188EFI_STATUS\r
189Dns4RemoveTokenEntry (\r
d1050b9d
MK
190 IN NET_MAP *TokenMap,\r
191 IN DNS4_TOKEN_ENTRY *TokenEntry\r
99c048ef 192 );\r
193\r
194/**\r
195 Remove TokenEntry from TokenMap.\r
196\r
197 @param[in] TokenMap All DNSv6 Token entrys.\r
198 @param[in] TokenEntry TokenEntry need to be removed.\r
199\r
81a46615 200 @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r
99c048ef 201 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
f75a7f56 202\r
99c048ef 203**/\r
204EFI_STATUS\r
205Dns6RemoveTokenEntry (\r
d1050b9d
MK
206 IN NET_MAP *TokenMap,\r
207 IN DNS6_TOKEN_ENTRY *TokenEntry\r
99c048ef 208 );\r
209\r
210/**\r
81a46615 211 This function cancel the token specified by Arg in the Map.\r
99c048ef 212\r
213 @param[in] Map Pointer to the NET_MAP.\r
214 @param[in] Item Pointer to the NET_MAP_ITEM.\r
215 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
216 the tokens in this Map will be cancelled.\r
217 This parameter is optional and may be NULL.\r
218\r
219 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
220 is not the same as that in the Item, if Arg is not\r
221 NULL.\r
222 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
223 cancelled.\r
224\r
225**/\r
226EFI_STATUS\r
227EFIAPI\r
228Dns4CancelTokens (\r
229 IN NET_MAP *Map,\r
230 IN NET_MAP_ITEM *Item,\r
231 IN VOID *Arg OPTIONAL\r
232 );\r
233\r
234/**\r
81a46615 235 This function cancel the token specified by Arg in the Map.\r
99c048ef 236\r
237 @param[in] Map Pointer to the NET_MAP.\r
238 @param[in] Item Pointer to the NET_MAP_ITEM.\r
239 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
240 the tokens in this Map will be cancelled.\r
241 This parameter is optional and may be NULL.\r
242\r
243 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
244 is not the same as that in the Item, if Arg is not\r
245 NULL.\r
246 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
247 cancelled.\r
248\r
249**/\r
250EFI_STATUS\r
251EFIAPI\r
252Dns6CancelTokens (\r
253 IN NET_MAP *Map,\r
254 IN NET_MAP_ITEM *Item,\r
255 IN VOID *Arg OPTIONAL\r
256 );\r
257\r
258/**\r
259 Get the TokenEntry from the TokensMap.\r
260\r
261 @param[in] TokensMap All DNSv4 Token entrys\r
262 @param[in] Token Pointer to the token to be get.\r
263 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
264\r
81a46615 265 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r
99c048ef 266 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
267\r
268**/\r
269EFI_STATUS\r
270EFIAPI\r
271GetDns4TokenEntry (\r
d1050b9d
MK
272 IN NET_MAP *TokensMap,\r
273 IN EFI_DNS4_COMPLETION_TOKEN *Token,\r
274 OUT DNS4_TOKEN_ENTRY **TokenEntry\r
99c048ef 275 );\r
276\r
277/**\r
278 Get the TokenEntry from the TokensMap.\r
279\r
280 @param[in] TokensMap All DNSv6 Token entrys\r
281 @param[in] Token Pointer to the token to be get.\r
282 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
283\r
81a46615 284 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r
99c048ef 285 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
286\r
287**/\r
288EFI_STATUS\r
289EFIAPI\r
290GetDns6TokenEntry (\r
d1050b9d
MK
291 IN NET_MAP *TokensMap,\r
292 IN EFI_DNS6_COMPLETION_TOKEN *Token,\r
293 OUT DNS6_TOKEN_ENTRY **TokenEntry\r
99c048ef 294 );\r
295\r
296/**\r
297 Cancel DNS4 tokens from the DNS4 instance.\r
298\r
299 @param[in] Instance Pointer to the DNS instance context data.\r
300 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
301 tokens in this instance will be cancelled.\r
302 This parameter is optional and may be NULL.\r
303\r
304 @retval EFI_SUCCESS The Token is cancelled.\r
305 @retval EFI_NOT_FOUND The Token is not found.\r
306\r
307**/\r
308EFI_STATUS\r
309Dns4InstanceCancelToken (\r
310 IN DNS_INSTANCE *Instance,\r
311 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
312 );\r
313\r
314/**\r
315 Cancel DNS6 tokens from the DNS6 instance.\r
316\r
317 @param[in] Instance Pointer to the DNS instance context data.\r
318 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
319 tokens in this instance will be cancelled.\r
320 This parameter is optional and may be NULL.\r
321\r
322 @retval EFI_SUCCESS The Token is cancelled.\r
323 @retval EFI_NOT_FOUND The Token is not found.\r
324\r
325**/\r
326EFI_STATUS\r
327Dns6InstanceCancelToken (\r
328 IN DNS_INSTANCE *Instance,\r
329 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
330 );\r
331\r
332/**\r
333 Free the resource related to the configure parameters.\r
334\r
335 @param Config The DNS configure data\r
336\r
337**/\r
338VOID\r
339Dns4CleanConfigure (\r
340 IN OUT EFI_DNS4_CONFIG_DATA *Config\r
341 );\r
342\r
343/**\r
344 Free the resource related to the configure parameters.\r
345\r
346 @param Config The DNS configure data\r
347\r
348**/\r
349VOID\r
350Dns6CleanConfigure (\r
351 IN OUT EFI_DNS6_CONFIG_DATA *Config\r
352 );\r
353\r
354/**\r
355 Allocate memory for configure parameter such as timeout value for Dst,\r
356 then copy the configure parameter from Src to Dst.\r
357\r
358 @param[out] Dst The destination DHCP configure data.\r
359 @param[in] Src The source DHCP configure data.\r
360\r
361 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
362 @retval EFI_SUCCESS The configure is copied.\r
363\r
364**/\r
365EFI_STATUS\r
366Dns4CopyConfigure (\r
367 OUT EFI_DNS4_CONFIG_DATA *Dst,\r
368 IN EFI_DNS4_CONFIG_DATA *Src\r
369 );\r
370\r
371/**\r
372 Allocate memory for configure parameter such as timeout value for Dst,\r
373 then copy the configure parameter from Src to Dst.\r
374\r
375 @param[out] Dst The destination DHCP configure data.\r
376 @param[in] Src The source DHCP configure data.\r
377\r
378 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
379 @retval EFI_SUCCESS The configure is copied.\r
380\r
381**/\r
382EFI_STATUS\r
383Dns6CopyConfigure (\r
384 OUT EFI_DNS6_CONFIG_DATA *Dst,\r
385 IN EFI_DNS6_CONFIG_DATA *Src\r
386 );\r
387\r
388/**\r
389 Callback of Dns packet. Does nothing.\r
390\r
391 @param Arg The context.\r
392\r
393**/\r
394VOID\r
395EFIAPI\r
396DnsDummyExtFree (\r
d1050b9d 397 IN VOID *Arg\r
99c048ef 398 );\r
399\r
400/**\r
401 Poll the UDP to get the IP4 default address, which may be retrieved\r
f75a7f56
LG
402 by DHCP.\r
403\r
404 The default time out value is 5 seconds. If IP has retrieved the default address,\r
99c048ef 405 the UDP is reconfigured.\r
406\r
407 @param Instance The DNS instance\r
408 @param UdpIo The UDP_IO to poll\r
409 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
410\r
411 @retval TRUE The default address is retrieved and UDP is reconfigured.\r
81a46615 412 @retval FALSE Some error occurred.\r
99c048ef 413\r
414**/\r
415BOOLEAN\r
416Dns4GetMapping (\r
d1050b9d
MK
417 IN DNS_INSTANCE *Instance,\r
418 IN UDP_IO *UdpIo,\r
419 IN EFI_UDP4_CONFIG_DATA *UdpCfgData\r
99c048ef 420 );\r
421\r
422/**\r
423 Configure the opened Udp6 instance until the corresponding Ip6 instance\r
424 has been configured.\r
425\r
426 @param Instance The DNS instance\r
427 @param UdpIo The UDP_IO to poll\r
428 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
429\r
430 @retval TRUE Configure the Udp6 instance successfully.\r
81a46615 431 @retval FALSE Some error occurred.\r
99c048ef 432\r
433**/\r
434BOOLEAN\r
435Dns6GetMapping (\r
d1050b9d
MK
436 IN DNS_INSTANCE *Instance,\r
437 IN UDP_IO *UdpIo,\r
438 IN EFI_UDP6_CONFIG_DATA *UdpCfgData\r
99c048ef 439 );\r
440\r
441/**\r
442 Configure the UDP.\r
f75a7f56 443\r
99c048ef 444 @param Instance The DNS session\r
445 @param UdpIo The UDP_IO instance\r
f75a7f56 446\r
99c048ef 447 @retval EFI_SUCCESS The UDP is successfully configured for the\r
448 session.\r
449\r
450**/\r
451EFI_STATUS\r
452Dns4ConfigUdp (\r
d1050b9d
MK
453 IN DNS_INSTANCE *Instance,\r
454 IN UDP_IO *UdpIo\r
99c048ef 455 );\r
456\r
457/**\r
458 Configure the UDP.\r
f75a7f56 459\r
99c048ef 460 @param Instance The DNS session\r
461 @param UdpIo The UDP_IO instance\r
462\r
463 @retval EFI_SUCCESS The UDP is successfully configured for the\r
464 session.\r
465\r
466**/\r
467EFI_STATUS\r
468Dns6ConfigUdp (\r
d1050b9d
MK
469 IN DNS_INSTANCE *Instance,\r
470 IN UDP_IO *UdpIo\r
99c048ef 471 );\r
472\r
473/**\r
474 Update Dns4 cache to shared list of caches of all DNSv4 instances.\r
f75a7f56 475\r
99c048ef 476 @param Dns4CacheList All Dns4 cache list.\r
f75a7f56
LG
477 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
478 If TRUE, this function will delete matching DNS Cache entry.\r
479 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 480 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
481 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
482\r
483 @retval EFI_SUCCESS Update Dns4 cache successfully.\r
f75a7f56
LG
484 @retval Others Failed to update Dns4 cache.\r
485\r
99c048ef 486**/\r
487EFI_STATUS\r
488EFIAPI\r
489UpdateDns4Cache (\r
d1050b9d
MK
490 IN LIST_ENTRY *Dns4CacheList,\r
491 IN BOOLEAN DeleteFlag,\r
492 IN BOOLEAN Override,\r
493 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
99c048ef 494 );\r
495\r
496/**\r
f75a7f56 497 Update Dns6 cache to shared list of caches of all DNSv6 instances.\r
99c048ef 498\r
499 @param Dns6CacheList All Dns6 cache list.\r
f75a7f56
LG
500 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
501 If TRUE, this function will delete matching DNS Cache entry.\r
502 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 503 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
504 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
f75a7f56 505\r
99c048ef 506 @retval EFI_SUCCESS Update Dns6 cache successfully.\r
507 @retval Others Failed to update Dns6 cache.\r
f75a7f56 508**/\r
99c048ef 509EFI_STATUS\r
510EFIAPI\r
511UpdateDns6Cache (\r
d1050b9d
MK
512 IN LIST_ENTRY *Dns6CacheList,\r
513 IN BOOLEAN DeleteFlag,\r
514 IN BOOLEAN Override,\r
515 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
99c048ef 516 );\r
517\r
518/**\r
f75a7f56 519 Add Dns4 ServerIp to common list of addresses of all configured DNSv4 server.\r
99c048ef 520\r
f75a7f56
LG
521 @param Dns4ServerList Common list of addresses of all configured DNSv4 server.\r
522 @param ServerIp DNS server Ip.\r
99c048ef 523\r
524 @retval EFI_SUCCESS Add Dns4 ServerIp to common list successfully.\r
525 @retval Others Failed to add Dns4 ServerIp to common list.\r
f75a7f56 526\r
99c048ef 527**/\r
528EFI_STATUS\r
529EFIAPI\r
530AddDns4ServerIp (\r
d1050b9d
MK
531 IN LIST_ENTRY *Dns4ServerList,\r
532 IN EFI_IPv4_ADDRESS ServerIp\r
99c048ef 533 );\r
534\r
535/**\r
f75a7f56 536 Add Dns6 ServerIp to common list of addresses of all configured DNSv6 server.\r
99c048ef 537\r
f75a7f56
LG
538 @param Dns6ServerList Common list of addresses of all configured DNSv6 server.\r
539 @param ServerIp DNS server Ip.\r
99c048ef 540\r
541 @retval EFI_SUCCESS Add Dns6 ServerIp to common list successfully.\r
542 @retval Others Failed to add Dns6 ServerIp to common list.\r
f75a7f56
LG
543\r
544**/\r
99c048ef 545EFI_STATUS\r
546EFIAPI\r
547AddDns6ServerIp (\r
d1050b9d
MK
548 IN LIST_ENTRY *Dns6ServerList,\r
549 IN EFI_IPv6_ADDRESS ServerIp\r
99c048ef 550 );\r
551\r
552/**\r
553 Find out whether the response is valid or invalid.\r
554\r
f75a7f56
LG
555 @param TokensMap All DNS transmittal Tokens entry.\r
556 @param Identification Identification for queried packet.\r
99c048ef 557 @param Type Type for queried packet.\r
3900a743 558 @param Class Class for queried packet.\r
99c048ef 559 @param Item Return corresponding Token entry.\r
560\r
561 @retval TRUE The response is valid.\r
562 @retval FALSE The response is invalid.\r
f75a7f56
LG
563\r
564**/\r
99c048ef 565BOOLEAN\r
566IsValidDnsResponse (\r
d1050b9d
MK
567 IN NET_MAP *TokensMap,\r
568 IN UINT16 Identification,\r
569 IN UINT16 Type,\r
570 IN UINT16 Class,\r
571 OUT NET_MAP_ITEM **Item\r
99c048ef 572 );\r
573\r
574/**\r
575 Parse Dns Response.\r
576\r
577 @param Instance The DNS instance\r
578 @param RxString Received buffer.\r
84110bbe 579 @param Length Received buffer length.\r
f75a7f56
LG
580 @param Completed Flag to indicate that Dns response is valid.\r
581\r
99c048ef 582 @retval EFI_SUCCESS Parse Dns Response successfully.\r
583 @retval Others Failed to parse Dns Response.\r
f75a7f56
LG
584\r
585**/\r
99c048ef 586EFI_STATUS\r
587ParseDnsResponse (\r
d1050b9d
MK
588 IN OUT DNS_INSTANCE *Instance,\r
589 IN UINT8 *RxString,\r
590 IN UINT32 Length,\r
591 OUT BOOLEAN *Completed\r
99c048ef 592 );\r
593\r
594/**\r
595 Parse response packet.\r
596\r
597 @param Packet The packets received.\r
598 @param EndPoint The local/remote UDP access point\r
599 @param IoStatus The status of the UDP receive\r
600 @param Context The opaque parameter to the function.\r
601\r
f75a7f56 602**/\r
99c048ef 603VOID\r
604EFIAPI\r
605DnsOnPacketReceived (\r
d1050b9d
MK
606 NET_BUF *Packet,\r
607 UDP_END_POINT *EndPoint,\r
608 EFI_STATUS IoStatus,\r
609 VOID *Context\r
99c048ef 610 );\r
611\r
612/**\r
613 Release the net buffer when packet is sent.\r
614\r
615 @param Packet The packets received.\r
616 @param EndPoint The local/remote UDP access point\r
617 @param IoStatus The status of the UDP receive\r
618 @param Context The opaque parameter to the function.\r
619\r
620**/\r
621VOID\r
622EFIAPI\r
623DnsOnPacketSent (\r
d1050b9d
MK
624 NET_BUF *Packet,\r
625 UDP_END_POINT *EndPoint,\r
626 EFI_STATUS IoStatus,\r
627 VOID *Context\r
99c048ef 628 );\r
629\r
630/**\r
631 Query request information.\r
632\r
633 @param Instance The DNS instance\r
634 @param Packet The packet for querying request information.\r
635\r
636 @retval EFI_SUCCESS Query request information successfully.\r
637 @retval Others Failed to query request information.\r
638\r
639**/\r
640EFI_STATUS\r
641DoDnsQuery (\r
d1050b9d
MK
642 IN DNS_INSTANCE *Instance,\r
643 IN NET_BUF *Packet\r
99c048ef 644 );\r
645\r
646/**\r
fcae1a99 647 Construct the Packet according query section.\r
99c048ef 648\r
649 @param Instance The DNS instance\r
f75a7f56
LG
650 @param QueryName Queried Name\r
651 @param Type Queried Type\r
652 @param Class Queried Class\r
fcae1a99 653 @param Packet The packet for query\r
99c048ef 654\r
655 @retval EFI_SUCCESS The packet is constructed.\r
656 @retval Others Failed to construct the Packet.\r
657\r
658**/\r
659EFI_STATUS\r
fcae1a99 660ConstructDNSQuery (\r
d1050b9d
MK
661 IN DNS_INSTANCE *Instance,\r
662 IN CHAR8 *QueryName,\r
663 IN UINT16 Type,\r
664 IN UINT16 Class,\r
665 OUT NET_BUF **Packet\r
99c048ef 666 );\r
667\r
668/**\r
669 Retransmit the packet.\r
670\r
671 @param Instance The DNS instance\r
f75a7f56 672 @param Packet Retransmit the packet\r
99c048ef 673\r
674 @retval EFI_SUCCESS The packet is retransmitted.\r
675 @retval Others Failed to retransmit.\r
676\r
677**/\r
678EFI_STATUS\r
679DnsRetransmit (\r
d1050b9d
MK
680 IN DNS_INSTANCE *Instance,\r
681 IN NET_BUF *Packet\r
99c048ef 682 );\r
683\r
684/**\r
685 The timer ticking function for the DNS service.\r
686\r
687 @param Event The ticking event\r
688 @param Context The DNS service instance\r
689\r
690**/\r
691VOID\r
692EFIAPI\r
693DnsOnTimerRetransmit (\r
d1050b9d
MK
694 IN EFI_EVENT Event,\r
695 IN VOID *Context\r
99c048ef 696 );\r
697\r
698/**\r
699 The timer ticking function for the DNS driver.\r
700\r
701 @param Event The ticking event\r
702 @param Context NULL\r
703\r
704**/\r
705VOID\r
706EFIAPI\r
707DnsOnTimerUpdate (\r
d1050b9d
MK
708 IN EFI_EVENT Event,\r
709 IN VOID *Context\r
99c048ef 710 );\r
711\r
99c048ef 712/**\r
0f4e123f 713 Retrieve mode data of this DNS instance.\r
99c048ef 714\r
0f4e123f 715 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 716\r
0f4e123f
JW
717 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
718 @param[out] DnsModeData Point to the mode data.\r
99c048ef 719\r
0f4e123f
JW
720 @retval EFI_SUCCESS The operation completed successfully.\r
721 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
722 is available because this instance has not been\r
723 configured.\r
724 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
725 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 726**/\r
727EFI_STATUS\r
728EFIAPI\r
729Dns4GetModeData (\r
d1050b9d
MK
730 IN EFI_DNS4_PROTOCOL *This,\r
731 OUT EFI_DNS4_MODE_DATA *DnsModeData\r
99c048ef 732 );\r
733\r
734/**\r
0f4e123f
JW
735 Configure this DNS instance.\r
736\r
737 This function is used to configure DNS mode data for this DNS instance.\r
738\r
739 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
740 @param[in] DnsConfigData Point to the Configuration data.\r
741\r
742 @retval EFI_SUCCESS The operation completed successfully.\r
743 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
81a46615 744 @retval EFI_INVALID_PARAMETER This is NULL.\r
f75a7f56 745 The StationIp address provided in DnsConfigData is not a\r
0f4e123f
JW
746 valid unicast.\r
747 DnsServerList is NULL while DnsServerListCount\r
748 is not ZERO.\r
749 DnsServerListCount is ZERO while DnsServerList\r
750 is not NULL\r
751 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be\r
752 allocated.\r
753 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
754 EFI DNSv4 Protocol instance is not configured.\r
f75a7f56
LG
755 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
756 reconfigure the instance the caller must call Configure()\r
0f4e123f 757 with NULL first to return driver to unconfigured state.\r
99c048ef 758**/\r
759EFI_STATUS\r
760EFIAPI\r
761Dns4Configure (\r
d1050b9d
MK
762 IN EFI_DNS4_PROTOCOL *This,\r
763 IN EFI_DNS4_CONFIG_DATA *DnsConfigData\r
99c048ef 764 );\r
765\r
766/**\r
0f4e123f
JW
767 Host name to host address translation.\r
768\r
769 The HostNameToIp () function is used to translate the host name to host IP address. A\r
770 type A query is used to get the one or more IP addresses for this host.\r
771\r
772 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
773 @param[in] HostName Host name.\r
774 @param[in] Token Point to the completion token to translate host name\r
775 to host address.\r
776\r
777 @retval EFI_SUCCESS The operation completed successfully.\r
778 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
779 This is NULL.\r
780 Token is NULL.\r
781 Token.Event is NULL.\r
782 HostName is NULL. HostName string is unsupported format.\r
783 @retval EFI_NO_MAPPING There's no source address is available for use.\r
784 @retval EFI_NOT_STARTED This instance has not been started.\r
99c048ef 785**/\r
786EFI_STATUS\r
787EFIAPI\r
788Dns4HostNameToIp (\r
789 IN EFI_DNS4_PROTOCOL *This,\r
d1050b9d 790 IN CHAR16 *HostName,\r
99c048ef 791 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
792 );\r
793\r
794/**\r
0f4e123f
JW
795 IPv4 address to host name translation also known as Reverse DNS lookup.\r
796\r
f75a7f56 797 The IpToHostName() function is used to translate the host address to host name. A type PTR\r
0f4e123f
JW
798 query is used to get the primary name of the host. Support of this function is optional.\r
799\r
800 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
801 @param[in] IpAddress Ip Address.\r
802 @param[in] Token Point to the completion token to translate host\r
803 address to host name.\r
804\r
805 @retval EFI_SUCCESS The operation completed successfully.\r
806 @retval EFI_UNSUPPORTED This function is not supported.\r
807 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
808 This is NULL.\r
809 Token is NULL.\r
810 Token.Event is NULL.\r
811 IpAddress is not valid IP address .\r
812 @retval EFI_NO_MAPPING There's no source address is available for use.\r
813 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
814 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 815**/\r
816EFI_STATUS\r
817EFIAPI\r
818Dns4IpToHostName (\r
d1050b9d
MK
819 IN EFI_DNS4_PROTOCOL *This,\r
820 IN EFI_IPv4_ADDRESS IpAddress,\r
821 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
99c048ef 822 );\r
823\r
824/**\r
f75a7f56 825 Retrieve arbitrary information from the DNS server.\r
0f4e123f
JW
826\r
827 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
828 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
829 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
830 required information. The function is optional.\r
831\r
832 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
833 @param[in] QName Pointer to Query Name.\r
834 @param[in] QType Query Type.\r
835 @param[in] QClass Query Name.\r
836 @param[in] Token Point to the completion token to retrieve arbitrary\r
837 information.\r
838\r
839 @retval EFI_SUCCESS The operation completed successfully.\r
840 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
841 QType is not supported\r
842 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
843 This is NULL.\r
844 Token is NULL.\r
845 Token.Event is NULL.\r
846 QName is NULL.\r
847 @retval EFI_NO_MAPPING There's no source address is available for use.\r
848 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
849 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 850**/\r
851EFI_STATUS\r
852EFIAPI\r
853Dns4GeneralLookUp (\r
d1050b9d
MK
854 IN EFI_DNS4_PROTOCOL *This,\r
855 IN CHAR8 *QName,\r
856 IN UINT16 QType,\r
857 IN UINT16 QClass,\r
858 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
99c048ef 859 );\r
860\r
861/**\r
0f4e123f
JW
862 This function is to update the DNS Cache.\r
863\r
864 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
865 can be normally dynamically updated after the DNS resolve succeeds. This function\r
866 provided capability to manually add/delete/modify the DNS cache.\r
867\r
868 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
869 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
81a46615 870 DNS Cache. If TRUE, this function will delete\r
0f4e123f 871 matching DNS Cache entry.\r
81a46615 872 @param[in] Override If TRUE, the matching DNS cache entry will be\r
0f4e123f
JW
873 overwritten with the supplied parameter. If FALSE,\r
874 EFI_ACCESS_DENIED will be returned if the entry to\r
875 be added is already existed.\r
876 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
877\r
878 @retval EFI_SUCCESS The operation completed successfully.\r
879 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
880 This is NULL.\r
881 DnsCacheEntry.HostName is NULL.\r
882 DnsCacheEntry.IpAddress is NULL.\r
883 DnsCacheEntry.Timeout is zero.\r
884 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
885 not TRUE.\r
99c048ef 886**/\r
887EFI_STATUS\r
888EFIAPI\r
889Dns4UpdateDnsCache (\r
d1050b9d 890 IN EFI_DNS4_PROTOCOL *This,\r
99c048ef 891 IN BOOLEAN DeleteFlag,\r
892 IN BOOLEAN Override,\r
d1050b9d 893 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
99c048ef 894 );\r
895\r
896/**\r
0f4e123f
JW
897 Polls for incoming data packets and processes outgoing data packets.\r
898\r
899 The Poll() function can be used by network drivers and applications to increase the\r
900 rate that data packets are moved between the communications device and the transmit\r
901 and receive queues.\r
902 In some systems, the periodic timer event in the managed network driver may not poll\r
903 the underlying communications device fast enough to transmit and/or receive all data\r
904 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
905 applications that are experiencing packet loss should try calling the Poll()\r
906 function more often.\r
907\r
908 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
909\r
910 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
911 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
912 @retval EFI_INVALID_PARAMETER This is NULL.\r
913 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
914 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
915 queue. Consider increasing the polling rate.\r
99c048ef 916**/\r
917EFI_STATUS\r
918EFIAPI\r
919Dns4Poll (\r
d1050b9d 920 IN EFI_DNS4_PROTOCOL *This\r
99c048ef 921 );\r
922\r
923/**\r
0f4e123f
JW
924 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
925 general look up behavior.\r
926\r
927 The Cancel() function is used to abort a pending resolution request. After calling\r
928 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
929 signaled. If the token is not in one of the queues, which usually means that the\r
930 asynchronous operation has completed, this function will not signal the token and\r
931 EFI_NOT_FOUND is returned.\r
932\r
933 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
934 @param[in] Token Pointer to a token that has been issued by\r
935 EFI_DNS4_PROTOCOL.HostNameToIp (),\r
936 EFI_DNS4_PROTOCOL.IpToHostName() or\r
937 EFI_DNS4_PROTOCOL.GeneralLookup().\r
938 If NULL, all pending tokens are aborted.\r
939\r
940 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
941 @retval EFI_NOT_STARTED This EFI DNS4 Protocol instance has not been started.\r
942 @retval EFI_INVALID_PARAMETER This is NULL.\r
943 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
944 operation was not found in the transmit queue. It\r
945 was either completed or was not issued by\r
946 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 947**/\r
948EFI_STATUS\r
949EFIAPI\r
950Dns4Cancel (\r
951 IN EFI_DNS4_PROTOCOL *This,\r
952 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
953 );\r
954\r
99c048ef 955/**\r
0f4e123f 956 Retrieve mode data of this DNS instance.\r
99c048ef 957\r
0f4e123f 958 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 959\r
0f4e123f 960 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 961 @param[out] DnsModeData Pointer to the caller-allocated storage for the\r
0f4e123f 962 EFI_DNS6_MODE_DATA data.\r
99c048ef 963\r
0f4e123f
JW
964 @retval EFI_SUCCESS The operation completed successfully.\r
965 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
966 is available because this instance has not been\r
967 configured.\r
968 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
969 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 970**/\r
971EFI_STATUS\r
972EFIAPI\r
973Dns6GetModeData (\r
d1050b9d
MK
974 IN EFI_DNS6_PROTOCOL *This,\r
975 OUT EFI_DNS6_MODE_DATA *DnsModeData\r
99c048ef 976 );\r
977\r
978/**\r
0f4e123f
JW
979 Configure this DNS instance.\r
980\r
981 The Configure() function is used to set and change the configuration data for this\r
982 EFI DNSv6 Protocol driver instance. Reset the DNS instance if DnsConfigData is NULL.\r
983\r
984 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 985 @param[in] DnsConfigData Pointer to the configuration data structure. All associated\r
0f4e123f
JW
986 storage to be allocated and released by caller.\r
987\r
988 @retval EFI_SUCCESS The operation completed successfully.\r
81a46615 989 @retval EFI_INVALID_PARAMETER This is NULL.\r
0f4e123f
JW
990 The StationIp address provided in DnsConfigData is not zero and not a valid unicast.\r
991 DnsServerList is NULL while DnsServerList Count is not ZERO.\r
992 DnsServerList Count is ZERO while DnsServerList is not NULL.\r
993 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be allocated.\r
994 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
995 EFI DNSv6 Protocol instance is not configured.\r
996 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
f75a7f56
LG
997 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
998 reconfigure the instance the caller must call Configure() with\r
0f4e123f 999 NULL first to return driver to unconfigured state.\r
99c048ef 1000**/\r
1001EFI_STATUS\r
1002EFIAPI\r
1003Dns6Configure (\r
d1050b9d
MK
1004 IN EFI_DNS6_PROTOCOL *This,\r
1005 IN EFI_DNS6_CONFIG_DATA *DnsConfigData\r
99c048ef 1006 );\r
1007\r
1008/**\r
0f4e123f
JW
1009 Host name to host address translation.\r
1010\r
1011 The HostNameToIp () function is used to translate the host name to host IP address. A\r
1012 type AAAA query is used to get the one or more IPv6 addresses for this host.\r
1013\r
1014 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1015 @param[in] HostName Host name.\r
1016 @param[in] Token Point to the completion token to translate host name\r
1017 to host address.\r
1018\r
1019 @retval EFI_SUCCESS The operation completed successfully.\r
1020 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1021 This is NULL.\r
1022 Token is NULL.\r
1023 Token.Event is NULL.\r
1024 HostName is NULL or buffer contained unsupported characters.\r
1025 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1026 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
1027 @retval EFI_NOT_STARTED This instance has not been started.\r
1028 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1029**/\r
1030EFI_STATUS\r
1031EFIAPI\r
1032Dns6HostNameToIp (\r
1033 IN EFI_DNS6_PROTOCOL *This,\r
1034 IN CHAR16 *HostName,\r
1035 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1036 );\r
1037\r
1038/**\r
0f4e123f
JW
1039 Host address to host name translation.\r
1040\r
1041 The IpToHostName () function is used to translate the host address to host name. A\r
1042 type PTR query is used to get the primary name of the host. Implementation can choose\r
1043 to support this function or not.\r
1044\r
1045 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1046 @param[in] IpAddress Ip Address.\r
1047 @param[in] Token Point to the completion token to translate host\r
1048 address to host name.\r
1049\r
1050 @retval EFI_SUCCESS The operation completed successfully.\r
1051 @retval EFI_UNSUPPORTED This function is not supported.\r
1052 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1053 This is NULL.\r
1054 Token is NULL.\r
1055 Token.Event is NULL.\r
1056 IpAddress is not valid IP address.\r
1057 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1058 @retval EFI_NOT_STARTED This instance has not been started.\r
1059 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1060**/\r
1061EFI_STATUS\r
1062EFIAPI\r
1063Dns6IpToHostName (\r
d1050b9d
MK
1064 IN EFI_DNS6_PROTOCOL *This,\r
1065 IN EFI_IPv6_ADDRESS IpAddress,\r
1066 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
99c048ef 1067 );\r
1068\r
1069/**\r
0f4e123f
JW
1070 This function provides capability to retrieve arbitrary information from the DNS\r
1071 server.\r
1072\r
1073 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
1074 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
1075 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
1076 required information. The function is optional. Implementation can choose to support\r
1077 it or not.\r
1078\r
1079 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1080 @param[in] QName Pointer to Query Name.\r
1081 @param[in] QType Query Type.\r
1082 @param[in] QClass Query Name.\r
1083 @param[in] Token Point to the completion token to retrieve arbitrary\r
1084 information.\r
1085\r
1086 @retval EFI_SUCCESS The operation completed successfully.\r
1087 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
1088 QType is not supported\r
1089 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1090 This is NULL.\r
1091 Token is NULL.\r
1092 Token.Event is NULL.\r
1093 QName is NULL.\r
1094 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1095 @retval EFI_NOT_STARTED This instance has not been started.\r
1096 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1097**/\r
1098EFI_STATUS\r
1099EFIAPI\r
1100Dns6GeneralLookUp (\r
d1050b9d
MK
1101 IN EFI_DNS6_PROTOCOL *This,\r
1102 IN CHAR8 *QName,\r
1103 IN UINT16 QType,\r
1104 IN UINT16 QClass,\r
1105 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
99c048ef 1106 );\r
1107\r
1108/**\r
0f4e123f
JW
1109 This function is to update the DNS Cache.\r
1110\r
1111 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
1112 can be normally dynamically updated after the DNS resolve succeeds. This function\r
1113 provided capability to manually add/delete/modify the DNS cache.\r
1114\r
1115 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1116 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
81a46615 1117 DNS Cache. If TRUE, this function will delete\r
0f4e123f 1118 matching DNS Cache entry.\r
81a46615 1119 @param[in] Override If TRUE, the matching DNS cache entry will be\r
0f4e123f
JW
1120 overwritten with the supplied parameter. If FALSE,\r
1121 EFI_ACCESS_DENIED will be returned if the entry to\r
1122 be added is already existed.\r
1123 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
1124\r
1125 @retval EFI_SUCCESS The operation completed successfully.\r
1126 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1127 This is NULL.\r
1128 DnsCacheEntry.HostName is NULL.\r
1129 DnsCacheEntry.IpAddress is NULL.\r
1130 DnsCacheEntry.Timeout is zero.\r
1131 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
1132 not TRUE.\r
1133 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 1134**/\r
1135EFI_STATUS\r
1136EFIAPI\r
1137Dns6UpdateDnsCache (\r
d1050b9d 1138 IN EFI_DNS6_PROTOCOL *This,\r
99c048ef 1139 IN BOOLEAN DeleteFlag,\r
1140 IN BOOLEAN Override,\r
d1050b9d 1141 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
99c048ef 1142 );\r
1143\r
1144/**\r
0f4e123f
JW
1145 Polls for incoming data packets and processes outgoing data packets.\r
1146\r
1147 The Poll() function can be used by network drivers and applications to increase the\r
1148 rate that data packets are moved between the communications device and the transmit\r
1149 and receive queues.\r
1150\r
1151 In some systems, the periodic timer event in the managed network driver may not poll\r
1152 the underlying communications device fast enough to transmit and/or receive all data\r
1153 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
1154 applications that are experiencing packet loss should try calling the Poll()\r
1155 function more often.\r
1156\r
1157 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1158\r
1159 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1160 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
1161 @retval EFI_INVALID_PARAMETER This is NULL.\r
1162 @retval EFI_NO_MAPPING There is no source address is available for use.\r
1163 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
1164 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
1165 queue. Consider increasing the polling rate.\r
99c048ef 1166**/\r
1167EFI_STATUS\r
1168EFIAPI\r
1169Dns6Poll (\r
d1050b9d 1170 IN EFI_DNS6_PROTOCOL *This\r
99c048ef 1171 );\r
1172\r
1173/**\r
0f4e123f
JW
1174 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
1175 general look up behavior.\r
1176\r
1177 The Cancel() function is used to abort a pending resolution request. After calling\r
1178 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
1179 signaled. If the token is not in one of the queues, which usually means that the\r
1180 asynchronous operation has completed, this function will not signal the token and\r
1181 EFI_NOT_FOUND is returned.\r
1182\r
1183 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1184 @param[in] Token Pointer to a token that has been issued by\r
1185 EFI_DNS6_PROTOCOL.HostNameToIp (),\r
1186 EFI_DNS6_PROTOCOL.IpToHostName() or\r
1187 EFI_DNS6_PROTOCOL.GeneralLookup().\r
1188 If NULL, all pending tokens are aborted.\r
1189\r
1190 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1191 @retval EFI_NOT_STARTED This EFI DNS6 Protocol instance has not been started.\r
1192 @retval EFI_INVALID_PARAMETER This is NULL.\r
1193 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1194 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
1195 operation was not found in the transmit queue. It\r
1196 was either completed or was not issued by\r
1197 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 1198**/\r
1199EFI_STATUS\r
1200EFIAPI\r
1201Dns6Cancel (\r
1202 IN EFI_DNS6_PROTOCOL *This,\r
1203 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1204 );\r
1205\r
1206#endif\r