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99c048ef | 1 | /** @file\r |
2 | DnsDxe support functions implementation.\r | |
f75a7f56 LG |
3 | \r |
4 | Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
99c048ef | 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 | /**\r | |
18 | Remove TokenEntry from TokenMap.\r | |
19 | \r | |
20 | @param[in] TokenMap All DNSv4 Token entrys.\r | |
21 | @param[in] TokenEntry TokenEntry need to be removed.\r | |
22 | \r | |
23 | @retval EFI_SUCCESS Remove TokenEntry from TokenMap sucessfully.\r | |
24 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r | |
25 | \r | |
26 | **/\r | |
27 | EFI_STATUS\r | |
28 | Dns4RemoveTokenEntry (\r | |
29 | IN NET_MAP *TokenMap,\r | |
30 | IN DNS4_TOKEN_ENTRY *TokenEntry\r | |
31 | )\r | |
32 | {\r | |
33 | NET_MAP_ITEM *Item;\r | |
34 | \r | |
35 | //\r | |
36 | // Find the TokenEntry first.\r | |
37 | //\r | |
38 | Item = NetMapFindKey (TokenMap, (VOID *) TokenEntry);\r | |
39 | \r | |
40 | if (Item != NULL) {\r | |
41 | //\r | |
42 | // Remove the TokenEntry if it's found in the map.\r | |
43 | //\r | |
44 | NetMapRemoveItem (TokenMap, Item, NULL);\r | |
45 | \r | |
46 | return EFI_SUCCESS;\r | |
47 | }\r | |
f75a7f56 | 48 | \r |
99c048ef | 49 | return EFI_NOT_FOUND;\r |
50 | }\r | |
51 | \r | |
52 | /**\r | |
53 | Remove TokenEntry from TokenMap.\r | |
54 | \r | |
55 | @param[in] TokenMap All DNSv6 Token entrys.\r | |
56 | @param[in] TokenEntry TokenEntry need to be removed.\r | |
57 | \r | |
58 | @retval EFI_SUCCESS Remove TokenEntry from TokenMap sucessfully.\r | |
59 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r | |
f75a7f56 | 60 | \r |
99c048ef | 61 | **/\r |
62 | EFI_STATUS\r | |
63 | Dns6RemoveTokenEntry (\r | |
64 | IN NET_MAP *TokenMap,\r | |
65 | IN DNS6_TOKEN_ENTRY *TokenEntry\r | |
66 | )\r | |
67 | {\r | |
68 | NET_MAP_ITEM *Item;\r | |
69 | \r | |
70 | //\r | |
71 | // Find the TokenEntry first.\r | |
72 | //\r | |
73 | Item = NetMapFindKey (TokenMap, (VOID *) TokenEntry);\r | |
74 | \r | |
75 | if (Item != NULL) {\r | |
76 | //\r | |
77 | // Remove the TokenEntry if it's found in the map.\r | |
78 | //\r | |
79 | NetMapRemoveItem (TokenMap, Item, NULL);\r | |
80 | \r | |
81 | return EFI_SUCCESS;\r | |
82 | }\r | |
f75a7f56 | 83 | \r |
99c048ef | 84 | return EFI_NOT_FOUND;\r |
85 | }\r | |
86 | \r | |
87 | /**\r | |
88 | This function cancle the token specified by Arg in the Map.\r | |
89 | \r | |
90 | @param[in] Map Pointer to the NET_MAP.\r | |
91 | @param[in] Item Pointer to the NET_MAP_ITEM.\r | |
92 | @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r | |
93 | the tokens in this Map will be cancelled.\r | |
94 | This parameter is optional and may be NULL.\r | |
95 | \r | |
96 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r | |
97 | is not the same as that in the Item, if Arg is not\r | |
98 | NULL.\r | |
99 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r | |
100 | cancelled.\r | |
101 | \r | |
102 | **/\r | |
103 | EFI_STATUS\r | |
104 | EFIAPI\r | |
105 | Dns4CancelTokens (\r | |
106 | IN NET_MAP *Map,\r | |
107 | IN NET_MAP_ITEM *Item,\r | |
108 | IN VOID *Arg OPTIONAL\r | |
109 | )\r | |
110 | {\r | |
111 | DNS4_TOKEN_ENTRY *TokenEntry;\r | |
112 | NET_BUF *Packet;\r | |
113 | UDP_IO *UdpIo;\r | |
114 | \r | |
115 | if ((Arg != NULL) && (Item->Key != Arg)) {\r | |
116 | return EFI_SUCCESS;\r | |
117 | }\r | |
118 | \r | |
119 | if (Item->Value != NULL) {\r | |
120 | //\r | |
121 | // If the TokenEntry is a transmit TokenEntry, the corresponding Packet is recorded in\r | |
122 | // Item->Value.\r | |
123 | //\r | |
124 | Packet = (NET_BUF *) (Item->Value);\r | |
125 | UdpIo = (UDP_IO *) (*((UINTN *) &Packet->ProtoData[0]));\r | |
126 | \r | |
127 | UdpIoCancelSentDatagram (UdpIo, Packet);\r | |
128 | }\r | |
129 | \r | |
130 | //\r | |
131 | // Remove TokenEntry from Dns4TxTokens.\r | |
132 | //\r | |
133 | TokenEntry = (DNS4_TOKEN_ENTRY *) Item->Key;\r | |
134 | if (Dns4RemoveTokenEntry (Map, TokenEntry) == EFI_SUCCESS) {\r | |
135 | TokenEntry->Token->Status = EFI_ABORTED;\r | |
136 | gBS->SignalEvent (TokenEntry->Token->Event);\r | |
137 | DispatchDpc ();\r | |
138 | }\r | |
139 | \r | |
140 | if (Arg != NULL) {\r | |
141 | return EFI_ABORTED;\r | |
142 | }\r | |
143 | \r | |
144 | return EFI_SUCCESS;\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | This function cancle the token specified by Arg in the Map.\r | |
149 | \r | |
150 | @param[in] Map Pointer to the NET_MAP.\r | |
151 | @param[in] Item Pointer to the NET_MAP_ITEM.\r | |
152 | @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r | |
153 | the tokens in this Map will be cancelled.\r | |
154 | This parameter is optional and may be NULL.\r | |
155 | \r | |
156 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r | |
157 | is not the same as that in the Item, if Arg is not\r | |
158 | NULL.\r | |
159 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r | |
160 | cancelled.\r | |
161 | \r | |
162 | **/\r | |
163 | EFI_STATUS\r | |
164 | EFIAPI\r | |
165 | Dns6CancelTokens (\r | |
166 | IN NET_MAP *Map,\r | |
167 | IN NET_MAP_ITEM *Item,\r | |
168 | IN VOID *Arg OPTIONAL\r | |
169 | )\r | |
170 | {\r | |
171 | DNS6_TOKEN_ENTRY *TokenEntry;\r | |
172 | NET_BUF *Packet;\r | |
173 | UDP_IO *UdpIo;\r | |
174 | \r | |
175 | if ((Arg != NULL) && (Item->Key != Arg)) {\r | |
176 | return EFI_SUCCESS;\r | |
177 | }\r | |
178 | \r | |
179 | if (Item->Value != NULL) {\r | |
180 | //\r | |
181 | // If the TokenEntry is a transmit TokenEntry, the corresponding Packet is recorded in\r | |
182 | // Item->Value.\r | |
183 | //\r | |
184 | Packet = (NET_BUF *) (Item->Value);\r | |
185 | UdpIo = (UDP_IO *) (*((UINTN *) &Packet->ProtoData[0]));\r | |
186 | \r | |
187 | UdpIoCancelSentDatagram (UdpIo, Packet);\r | |
188 | }\r | |
189 | \r | |
190 | //\r | |
191 | // Remove TokenEntry from Dns6TxTokens.\r | |
192 | //\r | |
193 | TokenEntry = (DNS6_TOKEN_ENTRY *) Item->Key;\r | |
194 | if (Dns6RemoveTokenEntry (Map, TokenEntry) == EFI_SUCCESS) {\r | |
195 | TokenEntry->Token->Status = EFI_ABORTED;\r | |
196 | gBS->SignalEvent (TokenEntry->Token->Event);\r | |
197 | DispatchDpc ();\r | |
198 | }\r | |
199 | \r | |
200 | if (Arg != NULL) {\r | |
201 | return EFI_ABORTED;\r | |
202 | }\r | |
203 | \r | |
204 | return EFI_SUCCESS;\r | |
205 | }\r | |
206 | \r | |
207 | /**\r | |
208 | Get the TokenEntry from the TokensMap.\r | |
209 | \r | |
210 | @param[in] TokensMap All DNSv4 Token entrys\r | |
211 | @param[in] Token Pointer to the token to be get.\r | |
212 | @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r | |
213 | \r | |
214 | @retval EFI_SUCCESS Get the TokenEntry from the TokensMap sucessfully.\r | |
215 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r | |
216 | \r | |
217 | **/\r | |
218 | EFI_STATUS\r | |
219 | EFIAPI\r | |
220 | GetDns4TokenEntry (\r | |
221 | IN NET_MAP *TokensMap,\r | |
f75a7f56 | 222 | IN EFI_DNS4_COMPLETION_TOKEN *Token,\r |
99c048ef | 223 | OUT DNS4_TOKEN_ENTRY **TokenEntry\r |
224 | )\r | |
225 | {\r | |
226 | LIST_ENTRY *Entry;\r | |
f75a7f56 | 227 | \r |
99c048ef | 228 | NET_MAP_ITEM *Item;\r |
f75a7f56 | 229 | \r |
99c048ef | 230 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r |
231 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
f75a7f56 | 232 | *TokenEntry = (DNS4_TOKEN_ENTRY *) (Item->Key);\r |
99c048ef | 233 | if ((*TokenEntry)->Token == Token) {\r |
234 | return EFI_SUCCESS;\r | |
235 | }\r | |
236 | }\r | |
f75a7f56 | 237 | \r |
99c048ef | 238 | *TokenEntry = NULL;\r |
f75a7f56 | 239 | \r |
99c048ef | 240 | return EFI_NOT_FOUND;\r |
241 | }\r | |
242 | \r | |
243 | /**\r | |
244 | Get the TokenEntry from the TokensMap.\r | |
245 | \r | |
246 | @param[in] TokensMap All DNSv6 Token entrys\r | |
247 | @param[in] Token Pointer to the token to be get.\r | |
248 | @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r | |
249 | \r | |
250 | @retval EFI_SUCCESS Get the TokenEntry from the TokensMap sucessfully.\r | |
251 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r | |
252 | \r | |
253 | **/\r | |
254 | EFI_STATUS\r | |
255 | EFIAPI\r | |
256 | GetDns6TokenEntry (\r | |
257 | IN NET_MAP *TokensMap,\r | |
f75a7f56 | 258 | IN EFI_DNS6_COMPLETION_TOKEN *Token,\r |
99c048ef | 259 | OUT DNS6_TOKEN_ENTRY **TokenEntry\r |
260 | )\r | |
261 | {\r | |
262 | LIST_ENTRY *Entry;\r | |
f75a7f56 | 263 | \r |
99c048ef | 264 | NET_MAP_ITEM *Item;\r |
f75a7f56 | 265 | \r |
99c048ef | 266 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r |
267 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
f75a7f56 | 268 | *TokenEntry = (DNS6_TOKEN_ENTRY *) (Item->Key);\r |
99c048ef | 269 | if ((*TokenEntry)->Token == Token) {\r |
270 | return EFI_SUCCESS;\r | |
271 | }\r | |
272 | }\r | |
f75a7f56 | 273 | \r |
99c048ef | 274 | *TokenEntry =NULL;\r |
f75a7f56 | 275 | \r |
99c048ef | 276 | return EFI_NOT_FOUND;\r |
277 | }\r | |
278 | \r | |
279 | /**\r | |
280 | Cancel DNS4 tokens from the DNS4 instance.\r | |
281 | \r | |
282 | @param[in] Instance Pointer to the DNS instance context data.\r | |
283 | @param[in] Token Pointer to the token to be canceled. If NULL, all\r | |
284 | tokens in this instance will be cancelled.\r | |
285 | This parameter is optional and may be NULL.\r | |
286 | \r | |
287 | @retval EFI_SUCCESS The Token is cancelled.\r | |
288 | @retval EFI_NOT_FOUND The Token is not found.\r | |
289 | \r | |
290 | **/\r | |
291 | EFI_STATUS\r | |
292 | Dns4InstanceCancelToken (\r | |
293 | IN DNS_INSTANCE *Instance,\r | |
294 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
295 | )\r | |
296 | {\r | |
297 | EFI_STATUS Status;\r | |
298 | DNS4_TOKEN_ENTRY *TokenEntry;\r | |
299 | \r | |
300 | TokenEntry = NULL;\r | |
301 | \r | |
302 | if(Token != NULL ) {\r | |
303 | Status = GetDns4TokenEntry (&Instance->Dns4TxTokens, Token, &TokenEntry);\r | |
304 | if (EFI_ERROR (Status)) {\r | |
305 | return Status;\r | |
306 | }\r | |
307 | } else {\r | |
308 | TokenEntry = NULL;\r | |
309 | }\r | |
310 | \r | |
311 | //\r | |
312 | // Cancel this TokenEntry from the Dns4TxTokens map.\r | |
313 | //\r | |
314 | Status = NetMapIterate (&Instance->Dns4TxTokens, Dns4CancelTokens, TokenEntry);\r | |
315 | \r | |
316 | if ((TokenEntry != NULL) && (Status == EFI_ABORTED)) {\r | |
317 | //\r | |
318 | // If Token isn't NULL and Status is EFI_ABORTED, the token is cancelled from\r | |
319 | // the Dns4TxTokens and returns success.\r | |
320 | //\r | |
321 | if (NetMapIsEmpty (&Instance->Dns4TxTokens)) {\r | |
322 | Instance->UdpIo->Protocol.Udp4->Cancel (Instance->UdpIo->Protocol.Udp4, &Instance->UdpIo->RecvRequest->Token.Udp4);\r | |
323 | }\r | |
324 | return EFI_SUCCESS;\r | |
325 | }\r | |
326 | \r | |
327 | ASSERT ((TokenEntry != NULL) || (0 == NetMapGetCount (&Instance->Dns4TxTokens)));\r | |
f75a7f56 | 328 | \r |
99c048ef | 329 | if (NetMapIsEmpty (&Instance->Dns4TxTokens)) {\r |
330 | Instance->UdpIo->Protocol.Udp4->Cancel (Instance->UdpIo->Protocol.Udp4, &Instance->UdpIo->RecvRequest->Token.Udp4);\r | |
331 | }\r | |
332 | \r | |
333 | return EFI_SUCCESS;\r | |
334 | }\r | |
335 | \r | |
336 | /**\r | |
337 | Cancel DNS6 tokens from the DNS6 instance.\r | |
338 | \r | |
339 | @param[in] Instance Pointer to the DNS instance context data.\r | |
340 | @param[in] Token Pointer to the token to be canceled. If NULL, all\r | |
341 | tokens in this instance will be cancelled.\r | |
342 | This parameter is optional and may be NULL.\r | |
343 | \r | |
344 | @retval EFI_SUCCESS The Token is cancelled.\r | |
345 | @retval EFI_NOT_FOUND The Token is not found.\r | |
346 | \r | |
347 | **/\r | |
348 | EFI_STATUS\r | |
349 | Dns6InstanceCancelToken (\r | |
350 | IN DNS_INSTANCE *Instance,\r | |
351 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
352 | )\r | |
353 | {\r | |
354 | EFI_STATUS Status;\r | |
355 | DNS6_TOKEN_ENTRY *TokenEntry;\r | |
356 | \r | |
357 | TokenEntry = NULL;\r | |
358 | \r | |
359 | if(Token != NULL ) {\r | |
360 | Status = GetDns6TokenEntry (&Instance->Dns6TxTokens, Token, &TokenEntry);\r | |
361 | if (EFI_ERROR (Status)) {\r | |
362 | return Status;\r | |
363 | }\r | |
364 | } else {\r | |
365 | TokenEntry = NULL;\r | |
366 | }\r | |
367 | \r | |
368 | //\r | |
369 | // Cancel this TokenEntry from the Dns6TxTokens map.\r | |
370 | //\r | |
371 | Status = NetMapIterate (&Instance->Dns6TxTokens, Dns6CancelTokens, TokenEntry);\r | |
372 | \r | |
373 | if ((TokenEntry != NULL) && (Status == EFI_ABORTED)) {\r | |
374 | //\r | |
375 | // If Token isn't NULL and Status is EFI_ABORTED, the token is cancelled from\r | |
376 | // the Dns6TxTokens and returns success.\r | |
377 | //\r | |
378 | if (NetMapIsEmpty (&Instance->Dns6TxTokens)) {\r | |
379 | Instance->UdpIo->Protocol.Udp6->Cancel (Instance->UdpIo->Protocol.Udp6, &Instance->UdpIo->RecvRequest->Token.Udp6);\r | |
380 | }\r | |
381 | return EFI_SUCCESS;\r | |
382 | }\r | |
383 | \r | |
384 | ASSERT ((TokenEntry != NULL) || (0 == NetMapGetCount (&Instance->Dns6TxTokens)));\r | |
f75a7f56 | 385 | \r |
99c048ef | 386 | if (NetMapIsEmpty (&Instance->Dns6TxTokens)) {\r |
387 | Instance->UdpIo->Protocol.Udp6->Cancel (Instance->UdpIo->Protocol.Udp6, &Instance->UdpIo->RecvRequest->Token.Udp6);\r | |
388 | }\r | |
389 | \r | |
390 | return EFI_SUCCESS;\r | |
391 | }\r | |
392 | \r | |
393 | /**\r | |
394 | Free the resource related to the configure parameters.\r | |
395 | \r | |
396 | @param Config The DNS configure data\r | |
397 | \r | |
398 | **/\r | |
399 | VOID\r | |
400 | Dns4CleanConfigure (\r | |
401 | IN OUT EFI_DNS4_CONFIG_DATA *Config\r | |
402 | )\r | |
403 | {\r | |
404 | if (Config->DnsServerList != NULL) {\r | |
405 | FreePool (Config->DnsServerList);\r | |
406 | }\r | |
407 | \r | |
408 | ZeroMem (Config, sizeof (EFI_DNS4_CONFIG_DATA));\r | |
409 | }\r | |
410 | \r | |
411 | /**\r | |
412 | Free the resource related to the configure parameters.\r | |
413 | \r | |
414 | @param Config The DNS configure data\r | |
415 | \r | |
416 | **/\r | |
417 | VOID\r | |
418 | Dns6CleanConfigure (\r | |
419 | IN OUT EFI_DNS6_CONFIG_DATA *Config\r | |
420 | )\r | |
421 | {\r | |
422 | if (Config->DnsServerList != NULL) {\r | |
423 | FreePool (Config->DnsServerList);\r | |
424 | }\r | |
425 | \r | |
426 | ZeroMem (Config, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
427 | }\r | |
428 | \r | |
429 | /**\r | |
430 | Allocate memory for configure parameter such as timeout value for Dst,\r | |
431 | then copy the configure parameter from Src to Dst.\r | |
432 | \r | |
433 | @param[out] Dst The destination DHCP configure data.\r | |
434 | @param[in] Src The source DHCP configure data.\r | |
435 | \r | |
436 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
437 | @retval EFI_SUCCESS The configure is copied.\r | |
438 | \r | |
439 | **/\r | |
440 | EFI_STATUS\r | |
441 | Dns4CopyConfigure (\r | |
442 | OUT EFI_DNS4_CONFIG_DATA *Dst,\r | |
443 | IN EFI_DNS4_CONFIG_DATA *Src\r | |
444 | )\r | |
445 | {\r | |
446 | UINTN Len;\r | |
447 | UINT32 Index;\r | |
448 | \r | |
449 | CopyMem (Dst, Src, sizeof (*Dst));\r | |
450 | Dst->DnsServerList = NULL;\r | |
451 | \r | |
452 | //\r | |
453 | // Allocate a memory then copy DnsServerList to it\r | |
454 | //\r | |
455 | if (Src->DnsServerList != NULL) {\r | |
456 | Len = Src->DnsServerListCount * sizeof (EFI_IPv4_ADDRESS);\r | |
457 | Dst->DnsServerList = AllocatePool (Len);\r | |
458 | if (Dst->DnsServerList == NULL) {\r | |
459 | Dns4CleanConfigure (Dst);\r | |
460 | return EFI_OUT_OF_RESOURCES;\r | |
461 | }\r | |
462 | \r | |
463 | for (Index = 0; Index < Src->DnsServerListCount; Index++) {\r | |
464 | CopyMem (&Dst->DnsServerList[Index], &Src->DnsServerList[Index], sizeof (EFI_IPv4_ADDRESS));\r | |
465 | }\r | |
466 | }\r | |
467 | \r | |
468 | return EFI_SUCCESS;\r | |
469 | }\r | |
470 | \r | |
471 | /**\r | |
472 | Allocate memory for configure parameter such as timeout value for Dst,\r | |
473 | then copy the configure parameter from Src to Dst.\r | |
474 | \r | |
475 | @param[out] Dst The destination DHCP configure data.\r | |
476 | @param[in] Src The source DHCP configure data.\r | |
477 | \r | |
478 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
479 | @retval EFI_SUCCESS The configure is copied.\r | |
480 | \r | |
481 | **/\r | |
482 | EFI_STATUS\r | |
483 | Dns6CopyConfigure (\r | |
484 | OUT EFI_DNS6_CONFIG_DATA *Dst,\r | |
485 | IN EFI_DNS6_CONFIG_DATA *Src\r | |
486 | )\r | |
487 | {\r | |
488 | UINTN Len;\r | |
489 | UINT32 Index;\r | |
490 | \r | |
491 | CopyMem (Dst, Src, sizeof (*Dst));\r | |
492 | Dst->DnsServerList = NULL;\r | |
493 | \r | |
494 | //\r | |
495 | // Allocate a memory then copy DnsServerList to it\r | |
496 | //\r | |
497 | if (Src->DnsServerList != NULL) {\r | |
498 | Len = Src->DnsServerCount * sizeof (EFI_IPv6_ADDRESS);\r | |
499 | Dst->DnsServerList = AllocatePool (Len);\r | |
500 | if (Dst->DnsServerList == NULL) {\r | |
501 | Dns6CleanConfigure (Dst);\r | |
502 | return EFI_OUT_OF_RESOURCES;\r | |
503 | }\r | |
504 | \r | |
505 | for (Index = 0; Index < Src->DnsServerCount; Index++) {\r | |
506 | CopyMem (&Dst->DnsServerList[Index], &Src->DnsServerList[Index], sizeof (EFI_IPv6_ADDRESS));\r | |
507 | }\r | |
508 | }\r | |
509 | \r | |
510 | return EFI_SUCCESS;\r | |
511 | }\r | |
512 | \r | |
513 | /**\r | |
514 | Callback of Dns packet. Does nothing.\r | |
515 | \r | |
516 | @param Arg The context.\r | |
517 | \r | |
518 | **/\r | |
519 | VOID\r | |
520 | EFIAPI\r | |
521 | DnsDummyExtFree (\r | |
522 | IN VOID *Arg\r | |
523 | )\r | |
524 | {\r | |
525 | }\r | |
526 | \r | |
527 | /**\r | |
528 | Poll the UDP to get the IP4 default address, which may be retrieved\r | |
f75a7f56 LG |
529 | by DHCP.\r |
530 | \r | |
531 | The default time out value is 5 seconds. If IP has retrieved the default address,\r | |
99c048ef | 532 | the UDP is reconfigured.\r |
533 | \r | |
534 | @param Instance The DNS instance\r | |
535 | @param UdpIo The UDP_IO to poll\r | |
536 | @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r | |
537 | \r | |
538 | @retval TRUE The default address is retrieved and UDP is reconfigured.\r | |
539 | @retval FALSE Some error occured.\r | |
540 | \r | |
541 | **/\r | |
542 | BOOLEAN\r | |
543 | Dns4GetMapping (\r | |
544 | IN DNS_INSTANCE *Instance,\r | |
545 | IN UDP_IO *UdpIo,\r | |
546 | IN EFI_UDP4_CONFIG_DATA *UdpCfgData\r | |
547 | )\r | |
548 | {\r | |
549 | DNS_SERVICE *Service;\r | |
550 | EFI_IP4_MODE_DATA Ip4Mode;\r | |
551 | EFI_UDP4_PROTOCOL *Udp;\r | |
552 | EFI_STATUS Status;\r | |
553 | \r | |
554 | ASSERT (Instance->Dns4CfgData.UseDefaultSetting);\r | |
555 | \r | |
556 | Service = Instance->Service;\r | |
557 | Udp = UdpIo->Protocol.Udp4;\r | |
558 | \r | |
559 | Status = gBS->SetTimer (\r | |
560 | Service->TimerToGetMap,\r | |
561 | TimerRelative,\r | |
562 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
563 | );\r | |
564 | if (EFI_ERROR (Status)) {\r | |
565 | return FALSE;\r | |
566 | }\r | |
567 | \r | |
d115b80b | 568 | while (EFI_ERROR (gBS->CheckEvent (Service->TimerToGetMap))) {\r |
99c048ef | 569 | Udp->Poll (Udp);\r |
570 | \r | |
571 | if (!EFI_ERROR (Udp->GetModeData (Udp, NULL, &Ip4Mode, NULL, NULL)) &&\r | |
572 | Ip4Mode.IsConfigured) {\r | |
573 | \r | |
574 | Udp->Configure (Udp, NULL);\r | |
575 | return (BOOLEAN) (Udp->Configure (Udp, UdpCfgData) == EFI_SUCCESS);\r | |
576 | }\r | |
577 | }\r | |
578 | \r | |
579 | return FALSE;\r | |
580 | }\r | |
581 | \r | |
582 | /**\r | |
583 | Configure the opened Udp6 instance until the corresponding Ip6 instance\r | |
584 | has been configured.\r | |
585 | \r | |
586 | @param Instance The DNS instance\r | |
587 | @param UdpIo The UDP_IO to poll\r | |
588 | @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r | |
589 | \r | |
590 | @retval TRUE Configure the Udp6 instance successfully.\r | |
591 | @retval FALSE Some error occured.\r | |
592 | \r | |
593 | **/\r | |
594 | BOOLEAN\r | |
595 | Dns6GetMapping (\r | |
596 | IN DNS_INSTANCE *Instance,\r | |
597 | IN UDP_IO *UdpIo,\r | |
598 | IN EFI_UDP6_CONFIG_DATA *UdpCfgData\r | |
599 | )\r | |
600 | {\r | |
601 | DNS_SERVICE *Service;\r | |
602 | EFI_IP6_MODE_DATA Ip6Mode;\r | |
603 | EFI_UDP6_PROTOCOL *Udp;\r | |
604 | EFI_STATUS Status;\r | |
605 | \r | |
606 | Service = Instance->Service;\r | |
607 | Udp = UdpIo->Protocol.Udp6;\r | |
608 | \r | |
609 | Status = gBS->SetTimer (\r | |
610 | Service->TimerToGetMap,\r | |
611 | TimerRelative,\r | |
612 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
613 | );\r | |
614 | if (EFI_ERROR (Status)) {\r | |
615 | return FALSE;\r | |
616 | }\r | |
617 | \r | |
d115b80b | 618 | while (EFI_ERROR (gBS->CheckEvent (Service->TimerToGetMap))) {\r |
99c048ef | 619 | Udp->Poll (Udp);\r |
620 | \r | |
ce22514e ZL |
621 | if (!EFI_ERROR (Udp->GetModeData (Udp, NULL, &Ip6Mode, NULL, NULL))) {\r |
622 | if (Ip6Mode.AddressList != NULL) {\r | |
623 | FreePool (Ip6Mode.AddressList);\r | |
624 | }\r | |
99c048ef | 625 | \r |
ce22514e ZL |
626 | if (Ip6Mode.GroupTable != NULL) {\r |
627 | FreePool (Ip6Mode.GroupTable);\r | |
628 | }\r | |
629 | \r | |
630 | if (Ip6Mode.RouteTable != NULL) {\r | |
631 | FreePool (Ip6Mode.RouteTable);\r | |
632 | }\r | |
633 | \r | |
634 | if (Ip6Mode.NeighborCache != NULL) {\r | |
635 | FreePool (Ip6Mode.NeighborCache);\r | |
636 | }\r | |
637 | \r | |
638 | if (Ip6Mode.PrefixTable != NULL) {\r | |
639 | FreePool (Ip6Mode.PrefixTable);\r | |
640 | }\r | |
641 | \r | |
642 | if (Ip6Mode.IcmpTypeList != NULL) {\r | |
643 | FreePool (Ip6Mode.IcmpTypeList);\r | |
644 | }\r | |
645 | \r | |
eed4585b | 646 | if (!Ip6Mode.IsStarted || Ip6Mode.IsConfigured) {\r |
ce22514e | 647 | Udp->Configure (Udp, NULL);\r |
eed4585b JW |
648 | if (Udp->Configure (Udp, UdpCfgData) == EFI_SUCCESS) {\r |
649 | return TRUE;\r | |
650 | }\r | |
ce22514e | 651 | }\r |
99c048ef | 652 | }\r |
653 | }\r | |
654 | \r | |
655 | return FALSE;\r | |
656 | }\r | |
657 | \r | |
658 | /**\r | |
659 | Configure the UDP.\r | |
f75a7f56 | 660 | \r |
99c048ef | 661 | @param Instance The DNS session\r |
662 | @param UdpIo The UDP_IO instance\r | |
f75a7f56 | 663 | \r |
99c048ef | 664 | @retval EFI_SUCCESS The UDP is successfully configured for the\r |
665 | session.\r | |
666 | \r | |
667 | **/\r | |
668 | EFI_STATUS\r | |
669 | Dns4ConfigUdp (\r | |
670 | IN DNS_INSTANCE *Instance,\r | |
671 | IN UDP_IO *UdpIo\r | |
672 | )\r | |
673 | {\r | |
674 | EFI_DNS4_CONFIG_DATA *Config;\r | |
675 | EFI_UDP4_CONFIG_DATA UdpConfig;\r | |
676 | EFI_STATUS Status;\r | |
677 | \r | |
678 | Config = &Instance->Dns4CfgData;\r | |
679 | \r | |
680 | UdpConfig.AcceptBroadcast = FALSE;\r | |
681 | UdpConfig.AcceptPromiscuous = FALSE;\r | |
682 | UdpConfig.AcceptAnyPort = FALSE;\r | |
683 | UdpConfig.AllowDuplicatePort = FALSE;\r | |
684 | UdpConfig.TypeOfService = 0;\r | |
685 | UdpConfig.TimeToLive = 128;\r | |
686 | UdpConfig.DoNotFragment = FALSE;\r | |
687 | UdpConfig.ReceiveTimeout = 0;\r | |
688 | UdpConfig.TransmitTimeout = 0;\r | |
689 | UdpConfig.UseDefaultAddress = Config->UseDefaultSetting;\r | |
690 | UdpConfig.SubnetMask = Config->SubnetMask;\r | |
691 | UdpConfig.StationPort = Config->LocalPort;\r | |
692 | UdpConfig.RemotePort = DNS_SERVER_PORT;\r | |
693 | \r | |
694 | CopyMem (&UdpConfig.StationAddress, &Config->StationIp, sizeof (EFI_IPv4_ADDRESS));\r | |
695 | CopyMem (&UdpConfig.RemoteAddress, &Instance->SessionDnsServer.v4, sizeof (EFI_IPv4_ADDRESS));\r | |
696 | \r | |
697 | Status = UdpIo->Protocol.Udp4->Configure (UdpIo->Protocol.Udp4, &UdpConfig);\r | |
698 | \r | |
699 | if ((Status == EFI_NO_MAPPING) && Dns4GetMapping (Instance, UdpIo, &UdpConfig)) {\r | |
700 | return EFI_SUCCESS;\r | |
701 | }\r | |
f75a7f56 | 702 | \r |
99c048ef | 703 | return Status;\r |
704 | }\r | |
705 | \r | |
706 | /**\r | |
707 | Configure the UDP.\r | |
f75a7f56 | 708 | \r |
99c048ef | 709 | @param Instance The DNS session\r |
710 | @param UdpIo The UDP_IO instance\r | |
711 | \r | |
712 | @retval EFI_SUCCESS The UDP is successfully configured for the\r | |
713 | session.\r | |
714 | \r | |
715 | **/\r | |
716 | EFI_STATUS\r | |
717 | Dns6ConfigUdp (\r | |
718 | IN DNS_INSTANCE *Instance,\r | |
719 | IN UDP_IO *UdpIo\r | |
720 | )\r | |
721 | {\r | |
722 | EFI_DNS6_CONFIG_DATA *Config;\r | |
723 | EFI_UDP6_CONFIG_DATA UdpConfig;\r | |
724 | EFI_STATUS Status;\r | |
725 | \r | |
726 | Config = &Instance->Dns6CfgData;\r | |
727 | \r | |
728 | UdpConfig.AcceptPromiscuous = FALSE;\r | |
729 | UdpConfig.AcceptAnyPort = FALSE;\r | |
730 | UdpConfig.AllowDuplicatePort = FALSE;\r | |
731 | UdpConfig.TrafficClass = 0;\r | |
732 | UdpConfig.HopLimit = 128;\r | |
733 | UdpConfig.ReceiveTimeout = 0;\r | |
734 | UdpConfig.TransmitTimeout = 0;\r | |
735 | UdpConfig.StationPort = Config->LocalPort;\r | |
736 | UdpConfig.RemotePort = DNS_SERVER_PORT;\r | |
737 | CopyMem (&UdpConfig.StationAddress, &Config->StationIp, sizeof (EFI_IPv6_ADDRESS));\r | |
738 | CopyMem (&UdpConfig.RemoteAddress, &Instance->SessionDnsServer.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
739 | \r | |
740 | Status = UdpIo->Protocol.Udp6->Configure (UdpIo->Protocol.Udp6, &UdpConfig);\r | |
741 | \r | |
742 | if ((Status == EFI_NO_MAPPING) && Dns6GetMapping (Instance, UdpIo, &UdpConfig)) {\r | |
743 | return EFI_SUCCESS;\r | |
744 | }\r | |
f75a7f56 | 745 | \r |
99c048ef | 746 | return Status;\r |
747 | }\r | |
748 | \r | |
749 | /**\r | |
750 | Update Dns4 cache to shared list of caches of all DNSv4 instances.\r | |
f75a7f56 | 751 | \r |
99c048ef | 752 | @param Dns4CacheList All Dns4 cache list.\r |
f75a7f56 LG |
753 | @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r |
754 | If TRUE, this function will delete matching DNS Cache entry.\r | |
755 | @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r | |
99c048ef | 756 | If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r |
757 | @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r | |
758 | \r | |
759 | @retval EFI_SUCCESS Update Dns4 cache successfully.\r | |
f75a7f56 LG |
760 | @retval Others Failed to update Dns4 cache.\r |
761 | \r | |
762 | **/\r | |
99c048ef | 763 | EFI_STATUS\r |
764 | EFIAPI\r | |
765 | UpdateDns4Cache (\r | |
766 | IN LIST_ENTRY *Dns4CacheList,\r | |
767 | IN BOOLEAN DeleteFlag,\r | |
768 | IN BOOLEAN Override,\r | |
769 | IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r | |
770 | )\r | |
771 | {\r | |
f75a7f56 | 772 | DNS4_CACHE *NewDnsCache;\r |
99c048ef | 773 | DNS4_CACHE *Item;\r |
774 | LIST_ENTRY *Entry;\r | |
775 | LIST_ENTRY *Next;\r | |
776 | \r | |
777 | NewDnsCache = NULL;\r | |
778 | Item = NULL;\r | |
f75a7f56 | 779 | \r |
99c048ef | 780 | //\r |
781 | // Search the database for the matching EFI_DNS_CACHE_ENTRY\r | |
782 | //\r | |
783 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns4CacheList) {\r | |
784 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
785 | if (StrCmp (DnsCacheEntry.HostName, Item->DnsCache.HostName) == 0 && \\r | |
786 | CompareMem (DnsCacheEntry.IpAddress, Item->DnsCache.IpAddress, sizeof (EFI_IPv4_ADDRESS)) == 0) {\r | |
787 | //\r | |
788 | // This is the Dns cache entry\r | |
789 | //\r | |
790 | if (DeleteFlag) {\r | |
791 | //\r | |
792 | // Delete matching DNS Cache entry\r | |
793 | //\r | |
794 | RemoveEntryList (&Item->AllCacheLink);\r | |
43d7e607 JW |
795 | \r |
796 | FreePool (Item->DnsCache.HostName);\r | |
797 | FreePool (Item->DnsCache.IpAddress);\r | |
798 | FreePool (Item);\r | |
f75a7f56 | 799 | \r |
99c048ef | 800 | return EFI_SUCCESS;\r |
801 | } else if (Override) {\r | |
802 | //\r | |
803 | // Update this one\r | |
804 | //\r | |
805 | Item->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 806 | \r |
99c048ef | 807 | return EFI_SUCCESS;\r |
808 | }else {\r | |
809 | return EFI_ACCESS_DENIED;\r | |
810 | }\r | |
811 | }\r | |
812 | }\r | |
813 | \r | |
814 | //\r | |
815 | // Add new one\r | |
816 | //\r | |
817 | NewDnsCache = AllocatePool (sizeof (DNS4_CACHE));\r | |
f75a7f56 | 818 | if (NewDnsCache == NULL) {\r |
99c048ef | 819 | return EFI_OUT_OF_RESOURCES;\r |
820 | }\r | |
f75a7f56 | 821 | \r |
99c048ef | 822 | InitializeListHead (&NewDnsCache->AllCacheLink);\r |
f75a7f56 | 823 | \r |
99c048ef | 824 | NewDnsCache->DnsCache.HostName = AllocatePool (StrSize (DnsCacheEntry.HostName));\r |
f75a7f56 | 825 | if (NewDnsCache->DnsCache.HostName == NULL) {\r |
43d7e607 | 826 | FreePool (NewDnsCache);\r |
99c048ef | 827 | return EFI_OUT_OF_RESOURCES;\r |
828 | }\r | |
f75a7f56 | 829 | \r |
99c048ef | 830 | CopyMem (NewDnsCache->DnsCache.HostName, DnsCacheEntry.HostName, StrSize (DnsCacheEntry.HostName));\r |
831 | \r | |
832 | NewDnsCache->DnsCache.IpAddress = AllocatePool (sizeof (EFI_IPv4_ADDRESS));\r | |
43d7e607 JW |
833 | if (NewDnsCache->DnsCache.IpAddress == NULL) {\r |
834 | FreePool (NewDnsCache->DnsCache.HostName);\r | |
835 | FreePool (NewDnsCache);\r | |
99c048ef | 836 | return EFI_OUT_OF_RESOURCES;\r |
837 | }\r | |
838 | \r | |
839 | CopyMem (NewDnsCache->DnsCache.IpAddress, DnsCacheEntry.IpAddress, sizeof (EFI_IPv4_ADDRESS));\r | |
840 | \r | |
841 | NewDnsCache->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 842 | \r |
99c048ef | 843 | InsertTailList (Dns4CacheList, &NewDnsCache->AllCacheLink);\r |
f75a7f56 | 844 | \r |
99c048ef | 845 | return EFI_SUCCESS;\r |
846 | }\r | |
847 | \r | |
848 | /**\r | |
f75a7f56 | 849 | Update Dns6 cache to shared list of caches of all DNSv6 instances.\r |
99c048ef | 850 | \r |
851 | @param Dns6CacheList All Dns6 cache list.\r | |
f75a7f56 LG |
852 | @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r |
853 | If TRUE, this function will delete matching DNS Cache entry.\r | |
854 | @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r | |
99c048ef | 855 | If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r |
856 | @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r | |
f75a7f56 | 857 | \r |
99c048ef | 858 | @retval EFI_SUCCESS Update Dns6 cache successfully.\r |
859 | @retval Others Failed to update Dns6 cache.\r | |
f75a7f56 | 860 | **/\r |
99c048ef | 861 | EFI_STATUS\r |
862 | EFIAPI\r | |
863 | UpdateDns6Cache (\r | |
864 | IN LIST_ENTRY *Dns6CacheList,\r | |
865 | IN BOOLEAN DeleteFlag,\r | |
866 | IN BOOLEAN Override,\r | |
867 | IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r | |
868 | )\r | |
869 | {\r | |
f75a7f56 | 870 | DNS6_CACHE *NewDnsCache;\r |
99c048ef | 871 | DNS6_CACHE *Item;\r |
872 | LIST_ENTRY *Entry;\r | |
873 | LIST_ENTRY *Next;\r | |
874 | \r | |
875 | NewDnsCache = NULL;\r | |
876 | Item = NULL;\r | |
f75a7f56 | 877 | \r |
99c048ef | 878 | //\r |
879 | // Search the database for the matching EFI_DNS_CACHE_ENTRY\r | |
880 | //\r | |
881 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns6CacheList) {\r | |
882 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
883 | if (StrCmp (DnsCacheEntry.HostName, Item->DnsCache.HostName) == 0 && \\r | |
884 | CompareMem (DnsCacheEntry.IpAddress, Item->DnsCache.IpAddress, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
885 | //\r | |
886 | // This is the Dns cache entry\r | |
887 | //\r | |
888 | if (DeleteFlag) {\r | |
889 | //\r | |
890 | // Delete matching DNS Cache entry\r | |
891 | //\r | |
892 | RemoveEntryList (&Item->AllCacheLink);\r | |
f75a7f56 | 893 | \r |
43d7e607 JW |
894 | FreePool (Item->DnsCache.HostName);\r |
895 | FreePool (Item->DnsCache.IpAddress);\r | |
896 | FreePool (Item);\r | |
f75a7f56 | 897 | \r |
99c048ef | 898 | return EFI_SUCCESS;\r |
899 | } else if (Override) {\r | |
900 | //\r | |
901 | // Update this one\r | |
902 | //\r | |
903 | Item->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 904 | \r |
99c048ef | 905 | return EFI_SUCCESS;\r |
906 | }else {\r | |
907 | return EFI_ACCESS_DENIED;\r | |
908 | }\r | |
909 | }\r | |
910 | }\r | |
911 | \r | |
912 | //\r | |
913 | // Add new one\r | |
914 | //\r | |
915 | NewDnsCache = AllocatePool (sizeof (DNS6_CACHE));\r | |
f75a7f56 | 916 | if (NewDnsCache == NULL) {\r |
99c048ef | 917 | return EFI_OUT_OF_RESOURCES;\r |
918 | }\r | |
f75a7f56 | 919 | \r |
99c048ef | 920 | InitializeListHead (&NewDnsCache->AllCacheLink);\r |
f75a7f56 | 921 | \r |
99c048ef | 922 | NewDnsCache->DnsCache.HostName = AllocatePool (StrSize (DnsCacheEntry.HostName));\r |
f75a7f56 | 923 | if (NewDnsCache->DnsCache.HostName == NULL) {\r |
43d7e607 | 924 | FreePool (NewDnsCache);\r |
99c048ef | 925 | return EFI_OUT_OF_RESOURCES;\r |
926 | }\r | |
f75a7f56 | 927 | \r |
99c048ef | 928 | CopyMem (NewDnsCache->DnsCache.HostName, DnsCacheEntry.HostName, StrSize (DnsCacheEntry.HostName));\r |
929 | \r | |
930 | NewDnsCache->DnsCache.IpAddress = AllocatePool (sizeof (EFI_IPv6_ADDRESS));\r | |
43d7e607 JW |
931 | if (NewDnsCache->DnsCache.IpAddress == NULL) {\r |
932 | FreePool (NewDnsCache->DnsCache.HostName);\r | |
933 | FreePool (NewDnsCache);\r | |
99c048ef | 934 | return EFI_OUT_OF_RESOURCES;\r |
935 | }\r | |
f75a7f56 | 936 | \r |
99c048ef | 937 | CopyMem (NewDnsCache->DnsCache.IpAddress, DnsCacheEntry.IpAddress, sizeof (EFI_IPv6_ADDRESS));\r |
938 | \r | |
939 | NewDnsCache->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 940 | \r |
99c048ef | 941 | InsertTailList (Dns6CacheList, &NewDnsCache->AllCacheLink);\r |
f75a7f56 | 942 | \r |
99c048ef | 943 | return EFI_SUCCESS;\r |
944 | }\r | |
945 | \r | |
946 | /**\r | |
f75a7f56 | 947 | Add Dns4 ServerIp to common list of addresses of all configured DNSv4 server.\r |
99c048ef | 948 | \r |
f75a7f56 LG |
949 | @param Dns4ServerList Common list of addresses of all configured DNSv4 server.\r |
950 | @param ServerIp DNS server Ip.\r | |
99c048ef | 951 | \r |
952 | @retval EFI_SUCCESS Add Dns4 ServerIp to common list successfully.\r | |
953 | @retval Others Failed to add Dns4 ServerIp to common list.\r | |
f75a7f56 LG |
954 | \r |
955 | **/\r | |
99c048ef | 956 | EFI_STATUS\r |
957 | EFIAPI\r | |
958 | AddDns4ServerIp (\r | |
959 | IN LIST_ENTRY *Dns4ServerList,\r | |
960 | IN EFI_IPv4_ADDRESS ServerIp\r | |
961 | )\r | |
962 | {\r | |
f75a7f56 | 963 | DNS4_SERVER_IP *NewServerIp;\r |
99c048ef | 964 | DNS4_SERVER_IP *Item;\r |
965 | LIST_ENTRY *Entry;\r | |
966 | LIST_ENTRY *Next;\r | |
967 | \r | |
968 | NewServerIp = NULL;\r | |
969 | Item = NULL;\r | |
f75a7f56 | 970 | \r |
99c048ef | 971 | //\r |
972 | // Search the database for the matching ServerIp\r | |
973 | //\r | |
974 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns4ServerList) {\r | |
975 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_SERVER_IP, AllServerLink);\r | |
976 | if (CompareMem (&Item->Dns4ServerIp, &ServerIp, sizeof (EFI_IPv4_ADDRESS)) == 0) {\r | |
977 | //\r | |
978 | // Already done.\r | |
f75a7f56 | 979 | //\r |
99c048ef | 980 | return EFI_SUCCESS;\r |
981 | }\r | |
982 | }\r | |
983 | \r | |
984 | //\r | |
985 | // Add new one\r | |
986 | //\r | |
987 | NewServerIp = AllocatePool (sizeof (DNS4_SERVER_IP));\r | |
f75a7f56 | 988 | if (NewServerIp == NULL) {\r |
99c048ef | 989 | return EFI_OUT_OF_RESOURCES;\r |
990 | }\r | |
f75a7f56 | 991 | \r |
99c048ef | 992 | InitializeListHead (&NewServerIp->AllServerLink);\r |
f75a7f56 | 993 | \r |
99c048ef | 994 | CopyMem (&NewServerIp->Dns4ServerIp, &ServerIp, sizeof (EFI_IPv4_ADDRESS));\r |
f75a7f56 | 995 | \r |
99c048ef | 996 | InsertTailList (Dns4ServerList, &NewServerIp->AllServerLink);\r |
f75a7f56 | 997 | \r |
99c048ef | 998 | return EFI_SUCCESS;\r |
999 | }\r | |
1000 | \r | |
1001 | /**\r | |
f75a7f56 | 1002 | Add Dns6 ServerIp to common list of addresses of all configured DNSv6 server.\r |
99c048ef | 1003 | \r |
f75a7f56 LG |
1004 | @param Dns6ServerList Common list of addresses of all configured DNSv6 server.\r |
1005 | @param ServerIp DNS server Ip.\r | |
99c048ef | 1006 | \r |
1007 | @retval EFI_SUCCESS Add Dns6 ServerIp to common list successfully.\r | |
1008 | @retval Others Failed to add Dns6 ServerIp to common list.\r | |
f75a7f56 LG |
1009 | \r |
1010 | **/\r | |
99c048ef | 1011 | EFI_STATUS\r |
1012 | EFIAPI\r | |
1013 | AddDns6ServerIp (\r | |
1014 | IN LIST_ENTRY *Dns6ServerList,\r | |
1015 | IN EFI_IPv6_ADDRESS ServerIp\r | |
1016 | )\r | |
1017 | {\r | |
f75a7f56 | 1018 | DNS6_SERVER_IP *NewServerIp;\r |
99c048ef | 1019 | DNS6_SERVER_IP *Item;\r |
1020 | LIST_ENTRY *Entry;\r | |
1021 | LIST_ENTRY *Next;\r | |
1022 | \r | |
1023 | NewServerIp = NULL;\r | |
1024 | Item = NULL;\r | |
f75a7f56 | 1025 | \r |
99c048ef | 1026 | //\r |
1027 | // Search the database for the matching ServerIp\r | |
1028 | //\r | |
1029 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns6ServerList) {\r | |
1030 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_SERVER_IP, AllServerLink);\r | |
1031 | if (CompareMem (&Item->Dns6ServerIp, &ServerIp, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1032 | //\r | |
1033 | // Already done.\r | |
f75a7f56 | 1034 | //\r |
99c048ef | 1035 | return EFI_SUCCESS;\r |
1036 | }\r | |
1037 | }\r | |
1038 | \r | |
1039 | //\r | |
1040 | // Add new one\r | |
1041 | //\r | |
1042 | NewServerIp = AllocatePool (sizeof (DNS6_SERVER_IP));\r | |
f75a7f56 | 1043 | if (NewServerIp == NULL) {\r |
99c048ef | 1044 | return EFI_OUT_OF_RESOURCES;\r |
1045 | }\r | |
f75a7f56 | 1046 | \r |
99c048ef | 1047 | InitializeListHead (&NewServerIp->AllServerLink);\r |
f75a7f56 | 1048 | \r |
99c048ef | 1049 | CopyMem (&NewServerIp->Dns6ServerIp, &ServerIp, sizeof (EFI_IPv6_ADDRESS));\r |
f75a7f56 | 1050 | \r |
99c048ef | 1051 | InsertTailList (Dns6ServerList, &NewServerIp->AllServerLink);\r |
f75a7f56 | 1052 | \r |
99c048ef | 1053 | return EFI_SUCCESS;\r |
1054 | }\r | |
1055 | \r | |
1056 | /**\r | |
1057 | Find out whether the response is valid or invalid.\r | |
1058 | \r | |
f75a7f56 LG |
1059 | @param TokensMap All DNS transmittal Tokens entry.\r |
1060 | @param Identification Identification for queried packet.\r | |
99c048ef | 1061 | @param Type Type for queried packet.\r |
3900a743 | 1062 | @param Class Class for queried packet.\r |
99c048ef | 1063 | @param Item Return corresponding Token entry.\r |
1064 | \r | |
1065 | @retval TRUE The response is valid.\r | |
1066 | @retval FALSE The response is invalid.\r | |
f75a7f56 LG |
1067 | \r |
1068 | **/\r | |
99c048ef | 1069 | BOOLEAN\r |
1070 | IsValidDnsResponse (\r | |
1071 | IN NET_MAP *TokensMap,\r | |
1072 | IN UINT16 Identification,\r | |
1073 | IN UINT16 Type,\r | |
3900a743 | 1074 | IN UINT16 Class,\r |
99c048ef | 1075 | OUT NET_MAP_ITEM **Item\r |
1076 | )\r | |
1077 | {\r | |
1078 | LIST_ENTRY *Entry;\r | |
1079 | \r | |
1080 | NET_BUF *Packet;\r | |
1081 | UINT8 *TxString;\r | |
1082 | DNS_HEADER *DnsHeader;\r | |
1083 | CHAR8 *QueryName;\r | |
1084 | DNS_QUERY_SECTION *QuerySection;\r | |
1085 | \r | |
1086 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r | |
1087 | *Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
1088 | Packet = (NET_BUF *) ((*Item)->Value);\r | |
1089 | if (Packet == NULL){\r | |
f75a7f56 | 1090 | \r |
99c048ef | 1091 | continue;\r |
1092 | } else {\r | |
1093 | TxString = NetbufGetByte (Packet, 0, NULL);\r | |
3fd7bd08 | 1094 | ASSERT (TxString != NULL);\r |
99c048ef | 1095 | DnsHeader = (DNS_HEADER *) TxString;\r |
1096 | QueryName = (CHAR8 *) (TxString + sizeof (*DnsHeader));\r | |
1097 | QuerySection = (DNS_QUERY_SECTION *) (QueryName + AsciiStrLen (QueryName) + 1);\r | |
f75a7f56 | 1098 | \r |
3900a743 | 1099 | if (NTOHS (DnsHeader->Identification) == Identification &&\r |
f75a7f56 | 1100 | NTOHS (QuerySection->Type) == Type &&\r |
3900a743 | 1101 | NTOHS (QuerySection->Class) == Class) {\r |
99c048ef | 1102 | return TRUE;\r |
1103 | }\r | |
f75a7f56 | 1104 | }\r |
99c048ef | 1105 | }\r |
f75a7f56 | 1106 | \r |
3900a743 | 1107 | *Item = NULL;\r |
f75a7f56 | 1108 | \r |
99c048ef | 1109 | return FALSE;\r |
1110 | }\r | |
1111 | \r | |
1112 | /**\r | |
1113 | Parse Dns Response.\r | |
1114 | \r | |
1115 | @param Instance The DNS instance\r | |
1116 | @param RxString Received buffer.\r | |
f75a7f56 LG |
1117 | @param Completed Flag to indicate that Dns response is valid.\r |
1118 | \r | |
99c048ef | 1119 | @retval EFI_SUCCESS Parse Dns Response successfully.\r |
1120 | @retval Others Failed to parse Dns Response.\r | |
f75a7f56 LG |
1121 | \r |
1122 | **/\r | |
99c048ef | 1123 | EFI_STATUS\r |
1124 | ParseDnsResponse (\r | |
1125 | IN OUT DNS_INSTANCE *Instance,\r | |
1126 | IN UINT8 *RxString,\r | |
1127 | OUT BOOLEAN *Completed\r | |
1128 | )\r | |
1129 | {\r | |
1130 | DNS_HEADER *DnsHeader;\r | |
f75a7f56 | 1131 | \r |
99c048ef | 1132 | CHAR8 *QueryName;\r |
1133 | DNS_QUERY_SECTION *QuerySection;\r | |
f75a7f56 | 1134 | \r |
99c048ef | 1135 | CHAR8 *AnswerName;\r |
1136 | DNS_ANSWER_SECTION *AnswerSection;\r | |
1137 | UINT8 *AnswerData;\r | |
1138 | \r | |
1139 | NET_MAP_ITEM *Item;\r | |
1140 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
1141 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
f75a7f56 | 1142 | \r |
99c048ef | 1143 | UINT32 IpCount;\r |
fcae1a99 | 1144 | UINT32 RRCount;\r |
99c048ef | 1145 | UINT32 AnswerSectionNum;\r |
3093f45c | 1146 | UINT32 CNameTtl;\r |
f75a7f56 | 1147 | \r |
99c048ef | 1148 | EFI_IPv4_ADDRESS *HostAddr4;\r |
1149 | EFI_IPv6_ADDRESS *HostAddr6;\r | |
1150 | \r | |
1151 | EFI_DNS4_CACHE_ENTRY *Dns4CacheEntry;\r | |
1152 | EFI_DNS6_CACHE_ENTRY *Dns6CacheEntry;\r | |
1153 | \r | |
fcae1a99 JW |
1154 | DNS_RESOURCE_RECORD *Dns4RR;\r |
1155 | DNS6_RESOURCE_RECORD *Dns6RR;\r | |
1156 | \r | |
99c048ef | 1157 | EFI_STATUS Status;\r |
1158 | \r | |
1159 | EFI_TPL OldTpl;\r | |
f75a7f56 | 1160 | \r |
99c048ef | 1161 | Item = NULL;\r |
1162 | Dns4TokenEntry = NULL;\r | |
1163 | Dns6TokenEntry = NULL;\r | |
f75a7f56 | 1164 | \r |
99c048ef | 1165 | IpCount = 0;\r |
fcae1a99 | 1166 | RRCount = 0;\r |
99c048ef | 1167 | AnswerSectionNum = 0;\r |
3093f45c | 1168 | CNameTtl = 0;\r |
f75a7f56 | 1169 | \r |
99c048ef | 1170 | HostAddr4 = NULL;\r |
1171 | HostAddr6 = NULL;\r | |
f75a7f56 | 1172 | \r |
99c048ef | 1173 | Dns4CacheEntry = NULL;\r |
1174 | Dns6CacheEntry = NULL;\r | |
f75a7f56 | 1175 | \r |
fcae1a99 JW |
1176 | Dns4RR = NULL;\r |
1177 | Dns6RR = NULL;\r | |
99c048ef | 1178 | \r |
1179 | *Completed = TRUE;\r | |
1180 | Status = EFI_SUCCESS;\r | |
f75a7f56 | 1181 | \r |
99c048ef | 1182 | //\r |
1183 | // Get header\r | |
1184 | //\r | |
1185 | DnsHeader = (DNS_HEADER *) RxString;\r | |
f75a7f56 | 1186 | \r |
99c048ef | 1187 | DnsHeader->Identification = NTOHS (DnsHeader->Identification);\r |
1188 | DnsHeader->Flags.Uint16 = NTOHS (DnsHeader->Flags.Uint16);\r | |
1189 | DnsHeader->QuestionsNum = NTOHS (DnsHeader->QuestionsNum);\r | |
1190 | DnsHeader->AnswersNum = NTOHS (DnsHeader->AnswersNum);\r | |
1191 | DnsHeader->AuthorityNum = NTOHS (DnsHeader->AuthorityNum);\r | |
1192 | DnsHeader->AditionalNum = NTOHS (DnsHeader->AditionalNum);\r | |
1193 | \r | |
1194 | //\r | |
1195 | // Get Query name\r | |
1196 | //\r | |
1197 | QueryName = (CHAR8 *) (RxString + sizeof (*DnsHeader));\r | |
1198 | \r | |
1199 | //\r | |
1200 | // Get query section\r | |
1201 | //\r | |
1202 | QuerySection = (DNS_QUERY_SECTION *) (QueryName + AsciiStrLen (QueryName) + 1);\r | |
1203 | QuerySection->Type = NTOHS (QuerySection->Type);\r | |
1204 | QuerySection->Class = NTOHS (QuerySection->Class);\r | |
1205 | \r | |
1206 | //\r | |
1207 | // Get Answer name\r | |
1208 | //\r | |
1209 | AnswerName = (CHAR8 *) QuerySection + sizeof (*QuerySection);\r | |
1210 | \r | |
1211 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1212 | \r | |
1213 | //\r | |
1214 | // Check DnsResponse Validity, if so, also get a valid NET_MAP_ITEM.\r | |
1215 | //\r | |
1216 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r | |
3900a743 | 1217 | if (!IsValidDnsResponse (\r |
f75a7f56 LG |
1218 | &Instance->Dns4TxTokens,\r |
1219 | DnsHeader->Identification,\r | |
3900a743 JW |
1220 | QuerySection->Type,\r |
1221 | QuerySection->Class,\r | |
1222 | &Item\r | |
1223 | )) {\r | |
99c048ef | 1224 | *Completed = FALSE;\r |
1225 | Status = EFI_ABORTED;\r | |
1226 | goto ON_EXIT;\r | |
1227 | }\r | |
1228 | ASSERT (Item != NULL);\r | |
1229 | Dns4TokenEntry = (DNS4_TOKEN_ENTRY *) (Item->Key);\r | |
1230 | } else {\r | |
3900a743 | 1231 | if (!IsValidDnsResponse (\r |
f75a7f56 LG |
1232 | &Instance->Dns6TxTokens,\r |
1233 | DnsHeader->Identification,\r | |
3900a743 JW |
1234 | QuerySection->Type,\r |
1235 | QuerySection->Class,\r | |
1236 | &Item\r | |
1237 | )) {\r | |
99c048ef | 1238 | *Completed = FALSE;\r |
1239 | Status = EFI_ABORTED;\r | |
1240 | goto ON_EXIT;\r | |
1241 | }\r | |
1242 | ASSERT (Item != NULL);\r | |
1243 | Dns6TokenEntry = (DNS6_TOKEN_ENTRY *) (Item->Key);\r | |
1244 | }\r | |
f75a7f56 | 1245 | \r |
99c048ef | 1246 | //\r |
1247 | // Continue Check Some Errors.\r | |
1248 | //\r | |
1249 | if (DnsHeader->Flags.Bits.RCode != DNS_FLAGS_RCODE_NO_ERROR || DnsHeader->AnswersNum < 1 || \\r | |
3900a743 | 1250 | DnsHeader->Flags.Bits.QR != DNS_FLAGS_QR_RESPONSE) {\r |
0a92ac88 JW |
1251 | //\r |
1252 | // The domain name referenced in the query does not exist.\r | |
1253 | //\r | |
1254 | if (DnsHeader->Flags.Bits.RCode == DNS_FLAGS_RCODE_NAME_ERROR) {\r | |
f75a7f56 | 1255 | Status = EFI_NOT_FOUND;\r |
0a92ac88 JW |
1256 | } else {\r |
1257 | Status = EFI_DEVICE_ERROR;\r | |
1258 | }\r | |
f75a7f56 | 1259 | \r |
0a92ac88 | 1260 | goto ON_COMPLETE;\r |
99c048ef | 1261 | }\r |
f75a7f56 | 1262 | \r |
99c048ef | 1263 | //\r |
fcae1a99 | 1264 | // Do some buffer allocations.\r |
99c048ef | 1265 | //\r |
00c0c3f2 JW |
1266 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
1267 | ASSERT (Dns4TokenEntry != NULL);\r | |
fcae1a99 JW |
1268 | \r |
1269 | if (Dns4TokenEntry->GeneralLookUp) {\r | |
1270 | //\r | |
1271 | // It's the GeneralLookUp querying.\r | |
1272 | //\r | |
43d7e607 | 1273 | Dns4TokenEntry->Token->RspData.GLookupData = AllocateZeroPool (sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 JW |
1274 | if (Dns4TokenEntry->Token->RspData.GLookupData == NULL) {\r |
1275 | Status = EFI_OUT_OF_RESOURCES;\r | |
1276 | goto ON_EXIT;\r | |
1277 | }\r | |
43d7e607 | 1278 | Dns4TokenEntry->Token->RspData.GLookupData->RRList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 JW |
1279 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList == NULL) {\r |
1280 | Status = EFI_OUT_OF_RESOURCES;\r | |
1281 | goto ON_EXIT;\r | |
1282 | }\r | |
00c0c3f2 | 1283 | } else {\r |
fcae1a99 JW |
1284 | //\r |
1285 | // It's not the GeneralLookUp querying. Check the Query type.\r | |
1286 | //\r | |
1287 | if (QuerySection->Type == DNS_TYPE_A) {\r | |
43d7e607 | 1288 | Dns4TokenEntry->Token->RspData.H2AData = AllocateZeroPool (sizeof (DNS_HOST_TO_ADDR_DATA));\r |
fcae1a99 JW |
1289 | if (Dns4TokenEntry->Token->RspData.H2AData == NULL) {\r |
1290 | Status = EFI_OUT_OF_RESOURCES;\r | |
1291 | goto ON_EXIT;\r | |
1292 | }\r | |
43d7e607 | 1293 | Dns4TokenEntry->Token->RspData.H2AData->IpList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (EFI_IPv4_ADDRESS));\r |
fcae1a99 JW |
1294 | if (Dns4TokenEntry->Token->RspData.H2AData->IpList == NULL) {\r |
1295 | Status = EFI_OUT_OF_RESOURCES;\r | |
1296 | goto ON_EXIT;\r | |
1297 | }\r | |
1298 | } else {\r | |
1299 | Status = EFI_UNSUPPORTED;\r | |
1300 | goto ON_EXIT;\r | |
1301 | }\r | |
00c0c3f2 | 1302 | }\r |
99c048ef | 1303 | } else {\r |
00c0c3f2 | 1304 | ASSERT (Dns6TokenEntry != NULL);\r |
fcae1a99 JW |
1305 | \r |
1306 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1307 | //\r | |
1308 | // It's the GeneralLookUp querying.\r | |
1309 | //\r | |
43d7e607 | 1310 | Dns6TokenEntry->Token->RspData.GLookupData = AllocateZeroPool (sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 | 1311 | if (Dns6TokenEntry->Token->RspData.GLookupData == NULL) {\r |
3093f45c | 1312 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1313 | goto ON_EXIT;\r |
1314 | }\r | |
43d7e607 | 1315 | Dns6TokenEntry->Token->RspData.GLookupData->RRList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 | 1316 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList == NULL) {\r |
3093f45c | 1317 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1318 | goto ON_EXIT;\r |
1319 | }\r | |
00c0c3f2 | 1320 | } else {\r |
fcae1a99 JW |
1321 | //\r |
1322 | // It's not the GeneralLookUp querying. Check the Query type.\r | |
1323 | //\r | |
1324 | if (QuerySection->Type == DNS_TYPE_AAAA) {\r | |
43d7e607 | 1325 | Dns6TokenEntry->Token->RspData.H2AData = AllocateZeroPool (sizeof (DNS6_HOST_TO_ADDR_DATA));\r |
fcae1a99 | 1326 | if (Dns6TokenEntry->Token->RspData.H2AData == NULL) {\r |
3093f45c | 1327 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1328 | goto ON_EXIT;\r |
1329 | }\r | |
43d7e607 | 1330 | Dns6TokenEntry->Token->RspData.H2AData->IpList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (EFI_IPv6_ADDRESS));\r |
fcae1a99 | 1331 | if (Dns6TokenEntry->Token->RspData.H2AData->IpList == NULL) {\r |
3093f45c | 1332 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1333 | goto ON_EXIT;\r |
1334 | }\r | |
1335 | } else {\r | |
1336 | Status = EFI_UNSUPPORTED;\r | |
1337 | goto ON_EXIT;\r | |
1338 | }\r | |
00c0c3f2 | 1339 | }\r |
99c048ef | 1340 | }\r |
1341 | \r | |
3093f45c JW |
1342 | Status = EFI_NOT_FOUND;\r |
1343 | \r | |
99c048ef | 1344 | //\r |
1345 | // Processing AnswerSection.\r | |
1346 | //\r | |
1347 | while (AnswerSectionNum < DnsHeader->AnswersNum) {\r | |
1348 | //\r | |
0e5e7996 | 1349 | // Answer name should be PTR, else EFI_UNSUPPORTED returned.\r |
99c048ef | 1350 | //\r |
0e5e7996 JW |
1351 | if ((*(UINT8 *) AnswerName & 0xC0) != 0xC0) {\r |
1352 | Status = EFI_UNSUPPORTED;\r | |
1353 | goto ON_EXIT;\r | |
1354 | }\r | |
f75a7f56 | 1355 | \r |
99c048ef | 1356 | //\r |
1357 | // Get Answer section.\r | |
1358 | //\r | |
1359 | AnswerSection = (DNS_ANSWER_SECTION *) (AnswerName + sizeof (UINT16));\r | |
1360 | AnswerSection->Type = NTOHS (AnswerSection->Type);\r | |
1361 | AnswerSection->Class = NTOHS (AnswerSection->Class);\r | |
1362 | AnswerSection->Ttl = NTOHL (AnswerSection->Ttl);\r | |
1363 | AnswerSection->DataLength = NTOHS (AnswerSection->DataLength);\r | |
1364 | \r | |
fcae1a99 JW |
1365 | //\r |
1366 | // Check whether it's the GeneralLookUp querying.\r | |
1367 | //\r | |
1368 | if (Instance->Service->IpVersion == IP_VERSION_4 && Dns4TokenEntry->GeneralLookUp) {\r | |
fcae1a99 JW |
1369 | Dns4RR = Dns4TokenEntry->Token->RspData.GLookupData->RRList;\r |
1370 | AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);\r | |
1371 | \r | |
1372 | //\r | |
1373 | // Fill the ResourceRecord.\r | |
1374 | //\r | |
1375 | Dns4RR[RRCount].QName = AllocateZeroPool (AsciiStrLen (QueryName) + 1);\r | |
1376 | if (Dns4RR[RRCount].QName == NULL) {\r | |
3093f45c | 1377 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1378 | goto ON_EXIT;\r |
1379 | }\r | |
1380 | CopyMem (Dns4RR[RRCount].QName, QueryName, AsciiStrLen (QueryName));\r | |
1381 | Dns4RR[RRCount].QType = AnswerSection->Type;\r | |
1382 | Dns4RR[RRCount].QClass = AnswerSection->Class;\r | |
1383 | Dns4RR[RRCount].TTL = AnswerSection->Ttl;\r | |
1384 | Dns4RR[RRCount].DataLength = AnswerSection->DataLength;\r | |
1385 | Dns4RR[RRCount].RData = AllocateZeroPool (Dns4RR[RRCount].DataLength);\r | |
1386 | if (Dns4RR[RRCount].RData == NULL) {\r | |
3093f45c | 1387 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1388 | goto ON_EXIT;\r |
1389 | }\r | |
1390 | CopyMem (Dns4RR[RRCount].RData, AnswerData, Dns4RR[RRCount].DataLength);\r | |
f75a7f56 | 1391 | \r |
fcae1a99 | 1392 | RRCount ++;\r |
3093f45c | 1393 | Status = EFI_SUCCESS;\r |
fcae1a99 | 1394 | } else if (Instance->Service->IpVersion == IP_VERSION_6 && Dns6TokenEntry->GeneralLookUp) {\r |
fcae1a99 JW |
1395 | Dns6RR = Dns6TokenEntry->Token->RspData.GLookupData->RRList;\r |
1396 | AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);\r | |
99c048ef | 1397 | \r |
fcae1a99 JW |
1398 | //\r |
1399 | // Fill the ResourceRecord.\r | |
1400 | //\r | |
1401 | Dns6RR[RRCount].QName = AllocateZeroPool (AsciiStrLen (QueryName) + 1);\r | |
1402 | if (Dns6RR[RRCount].QName == NULL) {\r | |
3093f45c | 1403 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1404 | goto ON_EXIT;\r |
1405 | }\r | |
1406 | CopyMem (Dns6RR[RRCount].QName, QueryName, AsciiStrLen (QueryName));\r | |
1407 | Dns6RR[RRCount].QType = AnswerSection->Type;\r | |
1408 | Dns6RR[RRCount].QClass = AnswerSection->Class;\r | |
1409 | Dns6RR[RRCount].TTL = AnswerSection->Ttl;\r | |
1410 | Dns6RR[RRCount].DataLength = AnswerSection->DataLength;\r | |
1411 | Dns6RR[RRCount].RData = AllocateZeroPool (Dns6RR[RRCount].DataLength);\r | |
1412 | if (Dns6RR[RRCount].RData == NULL) {\r | |
3093f45c | 1413 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1414 | goto ON_EXIT;\r |
1415 | }\r | |
1416 | CopyMem (Dns6RR[RRCount].RData, AnswerData, Dns6RR[RRCount].DataLength);\r | |
f75a7f56 | 1417 | \r |
fcae1a99 | 1418 | RRCount ++;\r |
3093f45c | 1419 | Status = EFI_SUCCESS;\r |
fcae1a99 JW |
1420 | } else {\r |
1421 | //\r | |
f75a7f56 | 1422 | // It's not the GeneralLookUp querying.\r |
fcae1a99 JW |
1423 | // Check the Query type, parse the response packet.\r |
1424 | //\r | |
99c048ef | 1425 | switch (AnswerSection->Type) {\r |
1426 | case DNS_TYPE_A:\r | |
1427 | //\r | |
1428 | // This is address entry, get Data.\r | |
1429 | //\r | |
0e5e7996 JW |
1430 | ASSERT (Dns4TokenEntry != NULL);\r |
1431 | \r | |
1432 | if (AnswerSection->DataLength != 4) {\r | |
1433 | Status = EFI_ABORTED;\r | |
1434 | goto ON_EXIT;\r | |
1435 | }\r | |
f75a7f56 | 1436 | \r |
99c048ef | 1437 | HostAddr4 = Dns4TokenEntry->Token->RspData.H2AData->IpList;\r |
1438 | AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);\r | |
1439 | CopyMem (&HostAddr4[IpCount], AnswerData, sizeof (EFI_IPv4_ADDRESS));\r | |
1440 | \r | |
f75a7f56 | 1441 | //\r |
0a92ac88 | 1442 | // Allocate new CacheEntry pool to update DNS cache dynamically.\r |
99c048ef | 1443 | //\r |
1444 | Dns4CacheEntry = AllocateZeroPool (sizeof (EFI_DNS4_CACHE_ENTRY));\r | |
fcae1a99 | 1445 | if (Dns4CacheEntry == NULL) {\r |
3093f45c | 1446 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1447 | goto ON_EXIT;\r |
1448 | }\r | |
99c048ef | 1449 | Dns4CacheEntry->HostName = AllocateZeroPool (2 * (StrLen(Dns4TokenEntry->QueryHostName) + 1));\r |
fcae1a99 | 1450 | if (Dns4CacheEntry->HostName == NULL) {\r |
3093f45c | 1451 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1452 | goto ON_EXIT;\r |
1453 | }\r | |
99c048ef | 1454 | CopyMem (Dns4CacheEntry->HostName, Dns4TokenEntry->QueryHostName, 2 * (StrLen(Dns4TokenEntry->QueryHostName) + 1));\r |
1455 | Dns4CacheEntry->IpAddress = AllocateZeroPool (sizeof (EFI_IPv4_ADDRESS));\r | |
fcae1a99 | 1456 | if (Dns4CacheEntry->IpAddress == NULL) {\r |
3093f45c | 1457 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1458 | goto ON_EXIT;\r |
1459 | }\r | |
99c048ef | 1460 | CopyMem (Dns4CacheEntry->IpAddress, AnswerData, sizeof (EFI_IPv4_ADDRESS));\r |
3093f45c JW |
1461 | \r |
1462 | if (CNameTtl != 0 && AnswerSection->Ttl != 0) {\r | |
1463 | Dns4CacheEntry->Timeout = MIN (CNameTtl, AnswerSection->Ttl);\r | |
1464 | } else {\r | |
1465 | Dns4CacheEntry->Timeout = MAX (CNameTtl, AnswerSection->Ttl);\r | |
1466 | }\r | |
f75a7f56 | 1467 | \r |
0a92ac88 JW |
1468 | UpdateDns4Cache (&mDriverData->Dns4CacheList, FALSE, TRUE, *Dns4CacheEntry);\r |
1469 | \r | |
f75a7f56 | 1470 | //\r |
0a92ac88 JW |
1471 | // Free allocated CacheEntry pool.\r |
1472 | //\r | |
1473 | FreePool (Dns4CacheEntry->HostName);\r | |
1474 | Dns4CacheEntry->HostName = NULL;\r | |
f75a7f56 | 1475 | \r |
0a92ac88 JW |
1476 | FreePool (Dns4CacheEntry->IpAddress);\r |
1477 | Dns4CacheEntry->IpAddress = NULL;\r | |
1478 | \r | |
1479 | FreePool (Dns4CacheEntry);\r | |
1480 | Dns4CacheEntry = NULL;\r | |
99c048ef | 1481 | \r |
3093f45c JW |
1482 | IpCount ++;\r |
1483 | Status = EFI_SUCCESS;\r | |
99c048ef | 1484 | break;\r |
1485 | case DNS_TYPE_AAAA:\r | |
1486 | //\r | |
1487 | // This is address entry, get Data.\r | |
1488 | //\r | |
0e5e7996 JW |
1489 | ASSERT (Dns6TokenEntry != NULL);\r |
1490 | \r | |
1491 | if (AnswerSection->DataLength != 16) {\r | |
1492 | Status = EFI_ABORTED;\r | |
1493 | goto ON_EXIT;\r | |
1494 | }\r | |
f75a7f56 | 1495 | \r |
99c048ef | 1496 | HostAddr6 = Dns6TokenEntry->Token->RspData.H2AData->IpList;\r |
1497 | AnswerData = (UINT8 *) AnswerSection + sizeof (*AnswerSection);\r | |
1498 | CopyMem (&HostAddr6[IpCount], AnswerData, sizeof (EFI_IPv6_ADDRESS));\r | |
1499 | \r | |
f75a7f56 | 1500 | //\r |
0a92ac88 | 1501 | // Allocate new CacheEntry pool to update DNS cache dynamically.\r |
99c048ef | 1502 | //\r |
1503 | Dns6CacheEntry = AllocateZeroPool (sizeof (EFI_DNS6_CACHE_ENTRY));\r | |
fcae1a99 | 1504 | if (Dns6CacheEntry == NULL) {\r |
3093f45c | 1505 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1506 | goto ON_EXIT;\r |
1507 | }\r | |
99c048ef | 1508 | Dns6CacheEntry->HostName = AllocateZeroPool (2 * (StrLen(Dns6TokenEntry->QueryHostName) + 1));\r |
fcae1a99 | 1509 | if (Dns6CacheEntry->HostName == NULL) {\r |
3093f45c | 1510 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1511 | goto ON_EXIT;\r |
1512 | }\r | |
99c048ef | 1513 | CopyMem (Dns6CacheEntry->HostName, Dns6TokenEntry->QueryHostName, 2 * (StrLen(Dns6TokenEntry->QueryHostName) + 1));\r |
1514 | Dns6CacheEntry->IpAddress = AllocateZeroPool (sizeof (EFI_IPv6_ADDRESS));\r | |
fcae1a99 | 1515 | if (Dns6CacheEntry->IpAddress == NULL) {\r |
3093f45c | 1516 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1517 | goto ON_EXIT;\r |
1518 | }\r | |
99c048ef | 1519 | CopyMem (Dns6CacheEntry->IpAddress, AnswerData, sizeof (EFI_IPv6_ADDRESS));\r |
3093f45c JW |
1520 | \r |
1521 | if (CNameTtl != 0 && AnswerSection->Ttl != 0) {\r | |
1522 | Dns6CacheEntry->Timeout = MIN (CNameTtl, AnswerSection->Ttl);\r | |
1523 | } else {\r | |
1524 | Dns6CacheEntry->Timeout = MAX (CNameTtl, AnswerSection->Ttl);\r | |
1525 | }\r | |
f75a7f56 | 1526 | \r |
0a92ac88 JW |
1527 | UpdateDns6Cache (&mDriverData->Dns6CacheList, FALSE, TRUE, *Dns6CacheEntry);\r |
1528 | \r | |
f75a7f56 | 1529 | //\r |
0a92ac88 JW |
1530 | // Free allocated CacheEntry pool.\r |
1531 | //\r | |
1532 | FreePool (Dns6CacheEntry->HostName);\r | |
1533 | Dns6CacheEntry->HostName = NULL;\r | |
f75a7f56 | 1534 | \r |
0a92ac88 JW |
1535 | FreePool (Dns6CacheEntry->IpAddress);\r |
1536 | Dns6CacheEntry->IpAddress = NULL;\r | |
1537 | \r | |
1538 | FreePool (Dns6CacheEntry);\r | |
1539 | Dns6CacheEntry = NULL;\r | |
f75a7f56 | 1540 | \r |
99c048ef | 1541 | IpCount ++;\r |
3093f45c JW |
1542 | Status = EFI_SUCCESS;\r |
1543 | break;\r | |
1544 | case DNS_TYPE_CNAME:\r | |
1545 | //\r | |
f75a7f56 LG |
1546 | // According RFC 1034 - 3.6.2, if the query name is an alias, the name server will include the CNAME\r |
1547 | // record in the response and restart the query at the domain name specified in the data field of the\r | |
3093f45c JW |
1548 | // CNAME record. So, just record the TTL value of the CNAME, then skip to parse the next record.\r |
1549 | //\r | |
1550 | CNameTtl = AnswerSection->Ttl;\r | |
99c048ef | 1551 | break;\r |
1552 | default:\r | |
1553 | Status = EFI_UNSUPPORTED;\r | |
1554 | goto ON_EXIT;\r | |
1555 | }\r | |
1556 | }\r | |
f75a7f56 | 1557 | \r |
99c048ef | 1558 | //\r |
1559 | // Find next one\r | |
1560 | //\r | |
1561 | AnswerName = (CHAR8 *) AnswerSection + sizeof (*AnswerSection) + AnswerSection->DataLength;\r | |
1562 | AnswerSectionNum ++;\r | |
1563 | }\r | |
1564 | \r | |
00c0c3f2 JW |
1565 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
1566 | ASSERT (Dns4TokenEntry != NULL);\r | |
f75a7f56 | 1567 | \r |
fcae1a99 JW |
1568 | if (Dns4TokenEntry->GeneralLookUp) {\r |
1569 | Dns4TokenEntry->Token->RspData.GLookupData->RRCount = RRCount;\r | |
00c0c3f2 | 1570 | } else {\r |
fcae1a99 JW |
1571 | if (QuerySection->Type == DNS_TYPE_A) {\r |
1572 | Dns4TokenEntry->Token->RspData.H2AData->IpCount = IpCount;\r | |
1573 | } else {\r | |
1574 | Status = EFI_UNSUPPORTED;\r | |
1575 | goto ON_EXIT;\r | |
1576 | }\r | |
00c0c3f2 JW |
1577 | }\r |
1578 | } else {\r | |
1579 | ASSERT (Dns6TokenEntry != NULL);\r | |
fcae1a99 JW |
1580 | \r |
1581 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1582 | Dns6TokenEntry->Token->RspData.GLookupData->RRCount = RRCount;\r | |
00c0c3f2 | 1583 | } else {\r |
fcae1a99 JW |
1584 | if (QuerySection->Type == DNS_TYPE_AAAA) {\r |
1585 | Dns6TokenEntry->Token->RspData.H2AData->IpCount = IpCount;\r | |
1586 | } else {\r | |
1587 | Status = EFI_UNSUPPORTED;\r | |
1588 | goto ON_EXIT;\r | |
1589 | }\r | |
00c0c3f2 | 1590 | }\r |
99c048ef | 1591 | }\r |
f75a7f56 | 1592 | \r |
0a92ac88 | 1593 | ON_COMPLETE:\r |
99c048ef | 1594 | //\r |
3093f45c | 1595 | // Parsing is complete, free the sending packet and signal Event here.\r |
99c048ef | 1596 | //\r |
3093f45c JW |
1597 | if (Item != NULL && Item->Value != NULL) {\r |
1598 | NetbufFree ((NET_BUF *) (Item->Value));\r | |
1599 | }\r | |
f75a7f56 | 1600 | \r |
99c048ef | 1601 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
00c0c3f2 | 1602 | ASSERT (Dns4TokenEntry != NULL);\r |
99c048ef | 1603 | Dns4RemoveTokenEntry (&Instance->Dns4TxTokens, Dns4TokenEntry);\r |
3093f45c | 1604 | Dns4TokenEntry->Token->Status = Status;\r |
99c048ef | 1605 | if (Dns4TokenEntry->Token->Event != NULL) {\r |
1606 | gBS->SignalEvent (Dns4TokenEntry->Token->Event);\r | |
1607 | DispatchDpc ();\r | |
1608 | }\r | |
1609 | } else {\r | |
00c0c3f2 | 1610 | ASSERT (Dns6TokenEntry != NULL);\r |
99c048ef | 1611 | Dns6RemoveTokenEntry (&Instance->Dns6TxTokens, Dns6TokenEntry);\r |
3093f45c | 1612 | Dns6TokenEntry->Token->Status = Status;\r |
99c048ef | 1613 | if (Dns6TokenEntry->Token->Event != NULL) {\r |
1614 | gBS->SignalEvent (Dns6TokenEntry->Token->Event);\r | |
1615 | DispatchDpc ();\r | |
1616 | }\r | |
1617 | }\r | |
1618 | \r | |
99c048ef | 1619 | ON_EXIT:\r |
43d7e607 JW |
1620 | //\r |
1621 | // Free the allocated buffer if error happen.\r | |
1622 | //\r | |
1623 | if (EFI_ERROR (Status)) {\r | |
1624 | if (Dns4TokenEntry != NULL) {\r | |
1625 | if (Dns4TokenEntry->GeneralLookUp) {\r | |
1626 | if (Dns4TokenEntry->Token->RspData.GLookupData != NULL) {\r | |
1627 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList != NULL) {\r | |
1628 | while (RRCount != 0) {\r | |
1629 | RRCount --;\r | |
1630 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName != NULL) {\r | |
1631 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName);\r | |
1632 | }\r | |
1633 | \r | |
1634 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData != NULL) {\r | |
1635 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData);\r | |
1636 | }\r | |
1637 | }\r | |
f75a7f56 | 1638 | \r |
43d7e607 JW |
1639 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList);\r |
1640 | }\r | |
f75a7f56 | 1641 | \r |
43d7e607 JW |
1642 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData);\r |
1643 | }\r | |
1644 | } else {\r | |
1645 | if (QuerySection->Type == DNS_TYPE_A && Dns4TokenEntry->Token->RspData.H2AData != NULL) {\r | |
1646 | if (Dns4TokenEntry->Token->RspData.H2AData->IpList != NULL) {\r | |
1647 | FreePool (Dns4TokenEntry->Token->RspData.H2AData->IpList);\r | |
1648 | }\r | |
f75a7f56 | 1649 | \r |
43d7e607 JW |
1650 | FreePool (Dns4TokenEntry->Token->RspData.H2AData);\r |
1651 | }\r | |
1652 | }\r | |
1653 | }\r | |
1654 | \r | |
1655 | if (Dns6TokenEntry != NULL) {\r | |
1656 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1657 | if (Dns6TokenEntry->Token->RspData.GLookupData != NULL) {\r | |
1658 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList != NULL) {\r | |
1659 | while (RRCount != 0) {\r | |
1660 | RRCount --;\r | |
1661 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName != NULL) {\r | |
1662 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName);\r | |
1663 | }\r | |
1664 | \r | |
1665 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData != NULL) {\r | |
1666 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData);\r | |
1667 | }\r | |
1668 | }\r | |
f75a7f56 | 1669 | \r |
43d7e607 JW |
1670 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList);\r |
1671 | }\r | |
f75a7f56 | 1672 | \r |
43d7e607 JW |
1673 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData);\r |
1674 | }\r | |
1675 | } else {\r | |
1676 | if (QuerySection->Type == DNS_TYPE_AAAA && Dns6TokenEntry->Token->RspData.H2AData != NULL) {\r | |
1677 | if (Dns6TokenEntry->Token->RspData.H2AData->IpList != NULL) {\r | |
1678 | FreePool (Dns6TokenEntry->Token->RspData.H2AData->IpList);\r | |
1679 | }\r | |
f75a7f56 | 1680 | \r |
43d7e607 JW |
1681 | FreePool (Dns6TokenEntry->Token->RspData.H2AData);\r |
1682 | }\r | |
1683 | }\r | |
1684 | }\r | |
1685 | \r | |
1686 | if (Dns4CacheEntry != NULL) {\r | |
1687 | if (Dns4CacheEntry->HostName != NULL) {\r | |
1688 | FreePool (Dns4CacheEntry->HostName);\r | |
1689 | }\r | |
1690 | \r | |
1691 | if (Dns4CacheEntry->IpAddress != NULL) {\r | |
1692 | FreePool (Dns4CacheEntry->IpAddress);\r | |
1693 | }\r | |
1694 | \r | |
1695 | FreePool (Dns4CacheEntry);\r | |
1696 | }\r | |
1697 | \r | |
1698 | if (Dns6CacheEntry != NULL) {\r | |
1699 | if (Dns6CacheEntry->HostName != NULL) {\r | |
1700 | FreePool (Dns6CacheEntry->HostName);\r | |
1701 | }\r | |
1702 | \r | |
1703 | if (Dns6CacheEntry->IpAddress != NULL) {\r | |
1704 | FreePool (Dns6CacheEntry->IpAddress);\r | |
1705 | }\r | |
1706 | \r | |
1707 | FreePool (Dns6CacheEntry);\r | |
f75a7f56 | 1708 | }\r |
43d7e607 | 1709 | }\r |
f75a7f56 | 1710 | \r |
99c048ef | 1711 | gBS->RestoreTPL (OldTpl);\r |
1712 | return Status;\r | |
1713 | }\r | |
1714 | \r | |
1715 | /**\r | |
1716 | Parse response packet.\r | |
1717 | \r | |
1718 | @param Packet The packets received.\r | |
1719 | @param EndPoint The local/remote UDP access point\r | |
1720 | @param IoStatus The status of the UDP receive\r | |
1721 | @param Context The opaque parameter to the function.\r | |
1722 | \r | |
f75a7f56 | 1723 | **/\r |
99c048ef | 1724 | VOID\r |
1725 | EFIAPI\r | |
1726 | DnsOnPacketReceived (\r | |
1727 | NET_BUF *Packet,\r | |
1728 | UDP_END_POINT *EndPoint,\r | |
1729 | EFI_STATUS IoStatus,\r | |
1730 | VOID *Context\r | |
1731 | )\r | |
1732 | {\r | |
1733 | DNS_INSTANCE *Instance;\r | |
1734 | \r | |
1735 | UINT8 *RcvString;\r | |
1736 | \r | |
1737 | BOOLEAN Completed;\r | |
f75a7f56 | 1738 | \r |
99c048ef | 1739 | Instance = (DNS_INSTANCE *) Context;\r |
1740 | NET_CHECK_SIGNATURE (Instance, DNS_INSTANCE_SIGNATURE);\r | |
1741 | \r | |
1742 | RcvString = NULL;\r | |
1743 | Completed = FALSE;\r | |
1744 | \r | |
1745 | if (EFI_ERROR (IoStatus)) {\r | |
1746 | goto ON_EXIT;\r | |
1747 | }\r | |
1748 | \r | |
1749 | ASSERT (Packet != NULL);\r | |
37b68011 FS |
1750 | \r |
1751 | if (Packet->TotalSize <= sizeof (DNS_HEADER)) {\r | |
1752 | goto ON_EXIT;\r | |
1753 | }\r | |
f75a7f56 | 1754 | \r |
99c048ef | 1755 | RcvString = NetbufGetByte (Packet, 0, NULL);\r |
3fd7bd08 | 1756 | ASSERT (RcvString != NULL);\r |
f75a7f56 | 1757 | \r |
99c048ef | 1758 | //\r |
1759 | // Parse Dns Response\r | |
1760 | //\r | |
1761 | ParseDnsResponse (Instance, RcvString, &Completed);\r | |
1762 | \r | |
37b68011 | 1763 | ON_EXIT:\r |
99c048ef | 1764 | \r |
37b68011 FS |
1765 | if (Packet != NULL) {\r |
1766 | NetbufFree (Packet);\r | |
1767 | }\r | |
99c048ef | 1768 | \r |
37b68011 FS |
1769 | if (!Completed) {\r |
1770 | UdpIoRecvDatagram (Instance->UdpIo, DnsOnPacketReceived, Instance, 0);\r | |
1771 | }\r | |
99c048ef | 1772 | }\r |
1773 | \r | |
1774 | /**\r | |
1775 | Release the net buffer when packet is sent.\r | |
1776 | \r | |
1777 | @param Packet The packets received.\r | |
1778 | @param EndPoint The local/remote UDP access point\r | |
1779 | @param IoStatus The status of the UDP receive\r | |
1780 | @param Context The opaque parameter to the function.\r | |
1781 | \r | |
1782 | **/\r | |
1783 | VOID\r | |
1784 | EFIAPI\r | |
1785 | DnsOnPacketSent (\r | |
1786 | NET_BUF *Packet,\r | |
1787 | UDP_END_POINT *EndPoint,\r | |
1788 | EFI_STATUS IoStatus,\r | |
1789 | VOID *Context\r | |
1790 | )\r | |
1791 | {\r | |
1792 | DNS_INSTANCE *Instance;\r | |
1793 | LIST_ENTRY *Entry;\r | |
1794 | NET_MAP_ITEM *Item;\r | |
1795 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
1796 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
1797 | \r | |
1798 | Dns4TokenEntry = NULL;\r | |
1799 | Dns6TokenEntry = NULL;\r | |
1800 | \r | |
1801 | Instance = (DNS_INSTANCE *) Context;\r | |
1802 | NET_CHECK_SIGNATURE (Instance, DNS_INSTANCE_SIGNATURE);\r | |
1803 | \r | |
1804 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r | |
1805 | NET_LIST_FOR_EACH (Entry, &Instance->Dns4TxTokens.Used) {\r | |
1806 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
1807 | if (Packet == (NET_BUF *)(Item->Value)) {\r | |
1808 | Dns4TokenEntry = ((DNS4_TOKEN_ENTRY *)Item->Key);\r | |
1809 | Dns4TokenEntry->PacketToLive = Dns4TokenEntry->Token->RetryInterval;\r | |
1810 | break;\r | |
1811 | }\r | |
1812 | }\r | |
1813 | } else {\r | |
1814 | NET_LIST_FOR_EACH (Entry, &Instance->Dns6TxTokens.Used) {\r | |
1815 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
1816 | if (Packet == (NET_BUF *)(Item->Value)) {\r | |
1817 | Dns6TokenEntry = ((DNS6_TOKEN_ENTRY *)Item->Key);\r | |
1818 | Dns6TokenEntry->PacketToLive = Dns6TokenEntry->Token->RetryInterval;\r | |
1819 | break;\r | |
1820 | }\r | |
1821 | }\r | |
1822 | }\r | |
f75a7f56 | 1823 | \r |
99c048ef | 1824 | NetbufFree (Packet);\r |
1825 | }\r | |
1826 | \r | |
1827 | /**\r | |
1828 | Query request information.\r | |
1829 | \r | |
1830 | @param Instance The DNS instance\r | |
1831 | @param Packet The packet for querying request information.\r | |
1832 | \r | |
1833 | @retval EFI_SUCCESS Query request information successfully.\r | |
1834 | @retval Others Failed to query request information.\r | |
1835 | \r | |
1836 | **/\r | |
1837 | EFI_STATUS\r | |
1838 | DoDnsQuery (\r | |
1839 | IN DNS_INSTANCE *Instance,\r | |
1840 | IN NET_BUF *Packet\r | |
1841 | )\r | |
1842 | {\r | |
1843 | EFI_STATUS Status;\r | |
1844 | \r | |
1845 | //\r | |
1846 | // Ready to receive the DNS response.\r | |
1847 | //\r | |
1848 | if (Instance->UdpIo->RecvRequest == NULL) {\r | |
1849 | Status = UdpIoRecvDatagram (Instance->UdpIo, DnsOnPacketReceived, Instance, 0);\r | |
1850 | if (EFI_ERROR (Status)) {\r | |
1851 | return Status;\r | |
1852 | }\r | |
1853 | }\r | |
f75a7f56 | 1854 | \r |
99c048ef | 1855 | //\r |
1856 | // Transmit the DNS packet.\r | |
1857 | //\r | |
1858 | NET_GET_REF (Packet);\r | |
1859 | \r | |
1860 | Status = UdpIoSendDatagram (Instance->UdpIo, Packet, NULL, NULL, DnsOnPacketSent, Instance);\r | |
f75a7f56 | 1861 | \r |
99c048ef | 1862 | return Status;\r |
1863 | }\r | |
1864 | \r | |
1865 | /**\r | |
fcae1a99 | 1866 | Construct the Packet according query section.\r |
99c048ef | 1867 | \r |
1868 | @param Instance The DNS instance\r | |
f75a7f56 LG |
1869 | @param QueryName Queried Name\r |
1870 | @param Type Queried Type\r | |
1871 | @param Class Queried Class\r | |
fcae1a99 | 1872 | @param Packet The packet for query\r |
99c048ef | 1873 | \r |
1874 | @retval EFI_SUCCESS The packet is constructed.\r | |
1875 | @retval Others Failed to construct the Packet.\r | |
1876 | \r | |
1877 | **/\r | |
1878 | EFI_STATUS\r | |
fcae1a99 | 1879 | ConstructDNSQuery (\r |
99c048ef | 1880 | IN DNS_INSTANCE *Instance,\r |
fcae1a99 | 1881 | IN CHAR8 *QueryName,\r |
99c048ef | 1882 | IN UINT16 Type,\r |
fcae1a99 | 1883 | IN UINT16 Class,\r |
99c048ef | 1884 | OUT NET_BUF **Packet\r |
1885 | )\r | |
1886 | {\r | |
1887 | NET_FRAGMENT Frag;\r | |
1888 | DNS_HEADER *DnsHeader;\r | |
fcae1a99 | 1889 | DNS_QUERY_SECTION *DnsQuery;\r |
3700da73 JW |
1890 | \r |
1891 | //\r | |
1892 | // Messages carried by UDP are restricted to 512 bytes (not counting the IP\r | |
1893 | // or UDP headers).\r | |
1894 | //\r | |
1895 | Frag.Bulk = AllocatePool (DNS_MAX_MESSAGE_SIZE * sizeof (UINT8));\r | |
99c048ef | 1896 | if (Frag.Bulk == NULL) {\r |
1897 | return EFI_OUT_OF_RESOURCES;\r | |
1898 | }\r | |
1899 | \r | |
1900 | //\r | |
1901 | // Fill header\r | |
1902 | //\r | |
f75a7f56 | 1903 | DnsHeader = (DNS_HEADER *) Frag.Bulk;\r |
5e0cdec1 | 1904 | DnsHeader->Identification = (UINT16)NET_RANDOM (NetRandomInitSeed());\r |
99c048ef | 1905 | DnsHeader->Flags.Uint16 = 0x0000;\r |
1906 | DnsHeader->Flags.Bits.RD = 1;\r | |
1907 | DnsHeader->Flags.Bits.OpCode = DNS_FLAGS_OPCODE_STANDARD;\r | |
1908 | DnsHeader->Flags.Bits.QR = DNS_FLAGS_QR_QUERY;\r | |
1909 | DnsHeader->QuestionsNum = 1;\r | |
1910 | DnsHeader->AnswersNum = 0;\r | |
1911 | DnsHeader->AuthorityNum = 0;\r | |
1912 | DnsHeader->AditionalNum = 0;\r | |
1913 | \r | |
5e0cdec1 ZL |
1914 | DnsHeader->Identification = HTONS (DnsHeader->Identification);\r |
1915 | DnsHeader->Flags.Uint16 = HTONS (DnsHeader->Flags.Uint16);\r | |
1916 | DnsHeader->QuestionsNum = HTONS (DnsHeader->QuestionsNum);\r | |
1917 | DnsHeader->AnswersNum = HTONS (DnsHeader->AnswersNum);\r | |
1918 | DnsHeader->AuthorityNum = HTONS (DnsHeader->AuthorityNum);\r | |
1919 | DnsHeader->AditionalNum = HTONS (DnsHeader->AditionalNum);\r | |
99c048ef | 1920 | \r |
1921 | Frag.Len = sizeof (*DnsHeader);\r | |
1922 | \r | |
1923 | //\r | |
1924 | // Fill Query name\r | |
1925 | //\r | |
fcae1a99 JW |
1926 | CopyMem (Frag.Bulk + Frag.Len, QueryName, AsciiStrLen (QueryName));\r |
1927 | Frag.Len = (UINT32) (Frag.Len + AsciiStrLen (QueryName));\r | |
1928 | *(Frag.Bulk + Frag.Len) = 0;\r | |
1929 | Frag.Len ++;\r | |
f75a7f56 | 1930 | \r |
99c048ef | 1931 | //\r |
1932 | // Rest query section\r | |
1933 | //\r | |
fcae1a99 | 1934 | DnsQuery = (DNS_QUERY_SECTION *) (Frag.Bulk + Frag.Len);\r |
99c048ef | 1935 | \r |
fcae1a99 JW |
1936 | DnsQuery->Type = HTONS (Type);\r |
1937 | DnsQuery->Class = HTONS (Class);\r | |
99c048ef | 1938 | \r |
fcae1a99 | 1939 | Frag.Len += sizeof (*DnsQuery);\r |
99c048ef | 1940 | \r |
1941 | //\r | |
1942 | // Wrap the Frag in a net buffer.\r | |
1943 | //\r | |
1944 | *Packet = NetbufFromExt (&Frag, 1, 0, 0, DnsDummyExtFree, NULL);\r | |
1945 | if (*Packet == NULL) {\r | |
1946 | FreePool (Frag.Bulk);\r | |
1947 | return EFI_OUT_OF_RESOURCES;\r | |
1948 | }\r | |
f75a7f56 | 1949 | \r |
99c048ef | 1950 | //\r |
1951 | // Store the UdpIo in ProtoData.\r | |
1952 | //\r | |
1953 | *((UINTN *) &((*Packet)->ProtoData[0])) = (UINTN) (Instance->UdpIo);\r | |
1954 | \r | |
1955 | return EFI_SUCCESS;\r | |
1956 | }\r | |
1957 | \r | |
1958 | /**\r | |
1959 | Retransmit the packet.\r | |
1960 | \r | |
1961 | @param Instance The DNS instance\r | |
f75a7f56 | 1962 | @param Packet Retransmit the packet\r |
99c048ef | 1963 | \r |
1964 | @retval EFI_SUCCESS The packet is retransmitted.\r | |
1965 | @retval Others Failed to retransmit.\r | |
1966 | \r | |
1967 | **/\r | |
1968 | EFI_STATUS\r | |
1969 | DnsRetransmit (\r | |
1970 | IN DNS_INSTANCE *Instance,\r | |
1971 | IN NET_BUF *Packet\r | |
1972 | )\r | |
1973 | {\r | |
1974 | EFI_STATUS Status;\r | |
f75a7f56 | 1975 | \r |
99c048ef | 1976 | UINT8 *Buffer;\r |
1977 | \r | |
1978 | ASSERT (Packet != NULL);\r | |
1979 | \r | |
1980 | //\r | |
1981 | // Set the requests to the listening port, other packets to the connected port\r | |
1982 | //\r | |
1983 | Buffer = NetbufGetByte (Packet, 0, NULL);\r | |
1984 | ASSERT (Buffer != NULL);\r | |
1985 | \r | |
1986 | NET_GET_REF (Packet);\r | |
1987 | \r | |
1988 | Status = UdpIoSendDatagram (\r | |
1989 | Instance->UdpIo,\r | |
1990 | Packet,\r | |
1991 | NULL,\r | |
1992 | NULL,\r | |
1993 | DnsOnPacketSent,\r | |
1994 | Instance\r | |
1995 | );\r | |
1996 | \r | |
1997 | if (EFI_ERROR (Status)) {\r | |
1998 | NET_PUT_REF (Packet);\r | |
1999 | }\r | |
2000 | \r | |
2001 | return Status;\r | |
2002 | }\r | |
2003 | \r | |
2004 | /**\r | |
2005 | The timer ticking function for the DNS services.\r | |
2006 | \r | |
2007 | @param Event The ticking event\r | |
2008 | @param Context The DNS service instance\r | |
2009 | \r | |
2010 | **/\r | |
2011 | VOID\r | |
2012 | EFIAPI\r | |
2013 | DnsOnTimerRetransmit (\r | |
2014 | IN EFI_EVENT Event,\r | |
2015 | IN VOID *Context\r | |
2016 | )\r | |
2017 | {\r | |
2018 | DNS_SERVICE *Service;\r | |
2019 | \r | |
2020 | LIST_ENTRY *Entry;\r | |
2021 | LIST_ENTRY *Next;\r | |
2022 | \r | |
2023 | DNS_INSTANCE *Instance;\r | |
2024 | LIST_ENTRY *EntryNetMap;\r | |
2025 | NET_MAP_ITEM *ItemNetMap;\r | |
2026 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
2027 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
2028 | \r | |
2029 | Dns4TokenEntry = NULL;\r | |
2030 | Dns6TokenEntry = NULL;\r | |
2031 | \r | |
2032 | Service = (DNS_SERVICE *) Context;\r | |
2033 | \r | |
2034 | \r | |
2035 | if (Service->IpVersion == IP_VERSION_4) {\r | |
2036 | //\r | |
2037 | // Iterate through all the children of the DNS service instance. Time\r | |
2038 | // out the packet. If maximum retries reached, clean the Token up.\r | |
2039 | //\r | |
2040 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Service->Dns4ChildrenList) {\r | |
2041 | Instance = NET_LIST_USER_STRUCT (Entry, DNS_INSTANCE, Link);\r | |
2042 | \r | |
2043 | EntryNetMap = Instance->Dns4TxTokens.Used.ForwardLink;\r | |
2044 | while (EntryNetMap != &Instance->Dns4TxTokens.Used) {\r | |
2045 | ItemNetMap = NET_LIST_USER_STRUCT (EntryNetMap, NET_MAP_ITEM, Link);\r | |
2046 | Dns4TokenEntry = (DNS4_TOKEN_ENTRY *)(ItemNetMap->Key);\r | |
2047 | if (Dns4TokenEntry->PacketToLive == 0 || (--Dns4TokenEntry->PacketToLive > 0)) {\r | |
2048 | EntryNetMap = EntryNetMap->ForwardLink;\r | |
2049 | continue;\r | |
2050 | }\r | |
2051 | \r | |
2052 | //\r | |
2053 | // Retransmit the packet if haven't reach the maxmium retry count,\r | |
2054 | // otherwise exit the transfer.\r | |
2055 | //\r | |
cd2a6240 | 2056 | if (++Dns4TokenEntry->RetryCounting <= Dns4TokenEntry->Token->RetryCount) {\r |
99c048ef | 2057 | DnsRetransmit (Instance, (NET_BUF *)ItemNetMap->Value);\r |
2058 | EntryNetMap = EntryNetMap->ForwardLink;\r | |
2059 | } else {\r | |
2060 | //\r | |
2061 | // Maximum retries reached, clean the Token up.\r | |
2062 | //\r | |
2063 | Dns4RemoveTokenEntry (&Instance->Dns4TxTokens, Dns4TokenEntry);\r | |
2064 | Dns4TokenEntry->Token->Status = EFI_TIMEOUT;\r | |
2065 | gBS->SignalEvent (Dns4TokenEntry->Token->Event);\r | |
2066 | DispatchDpc ();\r | |
f75a7f56 | 2067 | \r |
99c048ef | 2068 | //\r |
2069 | // Free the sending packet.\r | |
2070 | //\r | |
2071 | if (ItemNetMap->Value != NULL) {\r | |
2072 | NetbufFree ((NET_BUF *)(ItemNetMap->Value));\r | |
2073 | }\r | |
2074 | \r | |
2075 | EntryNetMap = Instance->Dns4TxTokens.Used.ForwardLink;\r | |
2076 | }\r | |
2077 | }\r | |
f75a7f56 | 2078 | }\r |
99c048ef | 2079 | }else {\r |
2080 | //\r | |
2081 | // Iterate through all the children of the DNS service instance. Time\r | |
2082 | // out the packet. If maximum retries reached, clean the Token up.\r | |
2083 | //\r | |
2084 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Service->Dns6ChildrenList) {\r | |
2085 | Instance = NET_LIST_USER_STRUCT (Entry, DNS_INSTANCE, Link);\r | |
f75a7f56 | 2086 | \r |
99c048ef | 2087 | EntryNetMap = Instance->Dns6TxTokens.Used.ForwardLink;\r |
2088 | while (EntryNetMap != &Instance->Dns6TxTokens.Used) {\r | |
2089 | ItemNetMap = NET_LIST_USER_STRUCT (EntryNetMap, NET_MAP_ITEM, Link);\r | |
2090 | Dns6TokenEntry = (DNS6_TOKEN_ENTRY *) (ItemNetMap->Key);\r | |
2091 | if (Dns6TokenEntry->PacketToLive == 0 || (--Dns6TokenEntry->PacketToLive > 0)) {\r | |
2092 | EntryNetMap = EntryNetMap->ForwardLink;\r | |
2093 | continue;\r | |
2094 | }\r | |
2095 | \r | |
2096 | //\r | |
2097 | // Retransmit the packet if haven't reach the maxmium retry count,\r | |
2098 | // otherwise exit the transfer.\r | |
2099 | //\r | |
cd2a6240 | 2100 | if (++Dns6TokenEntry->RetryCounting <= Dns6TokenEntry->Token->RetryCount) {\r |
99c048ef | 2101 | DnsRetransmit (Instance, (NET_BUF *) ItemNetMap->Value);\r |
2102 | EntryNetMap = EntryNetMap->ForwardLink;\r | |
2103 | } else {\r | |
2104 | //\r | |
2105 | // Maximum retries reached, clean the Token up.\r | |
2106 | //\r | |
2107 | Dns6RemoveTokenEntry (&Instance->Dns6TxTokens, Dns6TokenEntry);\r | |
2108 | Dns6TokenEntry->Token->Status = EFI_TIMEOUT;\r | |
2109 | gBS->SignalEvent (Dns6TokenEntry->Token->Event);\r | |
2110 | DispatchDpc ();\r | |
f75a7f56 | 2111 | \r |
99c048ef | 2112 | //\r |
2113 | // Free the sending packet.\r | |
2114 | //\r | |
2115 | if (ItemNetMap->Value != NULL) {\r | |
2116 | NetbufFree ((NET_BUF *) (ItemNetMap->Value));\r | |
2117 | }\r | |
2118 | \r | |
2119 | EntryNetMap = Instance->Dns6TxTokens.Used.ForwardLink;\r | |
f75a7f56 | 2120 | }\r |
99c048ef | 2121 | }\r |
2122 | }\r | |
f75a7f56 | 2123 | }\r |
99c048ef | 2124 | }\r |
2125 | \r | |
2126 | /**\r | |
2127 | The timer ticking function for the DNS driver.\r | |
2128 | \r | |
2129 | @param Event The ticking event\r | |
2130 | @param Context NULL\r | |
2131 | \r | |
2132 | **/\r | |
2133 | VOID\r | |
2134 | EFIAPI\r | |
2135 | DnsOnTimerUpdate (\r | |
2136 | IN EFI_EVENT Event,\r | |
2137 | IN VOID *Context\r | |
2138 | )\r | |
2139 | {\r | |
2140 | LIST_ENTRY *Entry;\r | |
2141 | LIST_ENTRY *Next;\r | |
2142 | DNS4_CACHE *Item4;\r | |
2143 | DNS6_CACHE *Item6;\r | |
2144 | \r | |
2145 | Item4 = NULL;\r | |
2146 | Item6 = NULL;\r | |
2147 | \r | |
2148 | //\r | |
2149 | // Iterate through all the DNS4 cache list.\r | |
2150 | //\r | |
2151 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
2152 | Item4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
2153 | Item4->DnsCache.Timeout--;\r | |
2154 | }\r | |
f75a7f56 | 2155 | \r |
99c048ef | 2156 | Entry = mDriverData->Dns4CacheList.ForwardLink;\r |
2157 | while (Entry != &mDriverData->Dns4CacheList) {\r | |
2158 | Item4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
3093f45c | 2159 | if (Item4->DnsCache.Timeout == 0) {\r |
99c048ef | 2160 | RemoveEntryList (&Item4->AllCacheLink);\r |
43d7e607 JW |
2161 | FreePool (Item4->DnsCache.HostName);\r |
2162 | FreePool (Item4->DnsCache.IpAddress);\r | |
2163 | FreePool (Item4);\r | |
99c048ef | 2164 | Entry = mDriverData->Dns4CacheList.ForwardLink;\r |
2165 | } else {\r | |
2166 | Entry = Entry->ForwardLink;\r | |
2167 | }\r | |
2168 | }\r | |
f75a7f56 | 2169 | \r |
99c048ef | 2170 | //\r |
2171 | // Iterate through all the DNS6 cache list.\r | |
2172 | //\r | |
2173 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
2174 | Item6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
2175 | Item6->DnsCache.Timeout--;\r | |
2176 | }\r | |
f75a7f56 | 2177 | \r |
99c048ef | 2178 | Entry = mDriverData->Dns6CacheList.ForwardLink;\r |
2179 | while (Entry != &mDriverData->Dns6CacheList) {\r | |
2180 | Item6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
3093f45c | 2181 | if (Item6->DnsCache.Timeout == 0) {\r |
99c048ef | 2182 | RemoveEntryList (&Item6->AllCacheLink);\r |
43d7e607 JW |
2183 | FreePool (Item6->DnsCache.HostName);\r |
2184 | FreePool (Item6->DnsCache.IpAddress);\r | |
2185 | FreePool (Item6);\r | |
99c048ef | 2186 | Entry = mDriverData->Dns6CacheList.ForwardLink;\r |
2187 | } else {\r | |
2188 | Entry = Entry->ForwardLink;\r | |
2189 | }\r | |
2190 | }\r | |
2191 | }\r | |
2192 | \r |