]>
Commit | Line | Data |
---|---|---|
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 | |
ecf98fbc | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
99c048ef | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "DnsImpl.h"\r | |
10 | \r | |
11 | /**\r | |
12 | Remove TokenEntry from TokenMap.\r | |
13 | \r | |
14 | @param[in] TokenMap All DNSv4 Token entrys.\r | |
15 | @param[in] TokenEntry TokenEntry need to be removed.\r | |
16 | \r | |
81a46615 | 17 | @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r |
99c048ef | 18 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r |
19 | \r | |
20 | **/\r | |
21 | EFI_STATUS\r | |
22 | Dns4RemoveTokenEntry (\r | |
d1050b9d MK |
23 | IN NET_MAP *TokenMap,\r |
24 | IN DNS4_TOKEN_ENTRY *TokenEntry\r | |
99c048ef | 25 | )\r |
26 | {\r | |
27 | NET_MAP_ITEM *Item;\r | |
28 | \r | |
29 | //\r | |
30 | // Find the TokenEntry first.\r | |
31 | //\r | |
d1050b9d | 32 | Item = NetMapFindKey (TokenMap, (VOID *)TokenEntry);\r |
99c048ef | 33 | \r |
34 | if (Item != NULL) {\r | |
35 | //\r | |
36 | // Remove the TokenEntry if it's found in the map.\r | |
37 | //\r | |
38 | NetMapRemoveItem (TokenMap, Item, NULL);\r | |
39 | \r | |
40 | return EFI_SUCCESS;\r | |
41 | }\r | |
f75a7f56 | 42 | \r |
99c048ef | 43 | return EFI_NOT_FOUND;\r |
44 | }\r | |
45 | \r | |
46 | /**\r | |
47 | Remove TokenEntry from TokenMap.\r | |
48 | \r | |
49 | @param[in] TokenMap All DNSv6 Token entrys.\r | |
50 | @param[in] TokenEntry TokenEntry need to be removed.\r | |
51 | \r | |
81a46615 | 52 | @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r |
99c048ef | 53 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r |
f75a7f56 | 54 | \r |
99c048ef | 55 | **/\r |
56 | EFI_STATUS\r | |
57 | Dns6RemoveTokenEntry (\r | |
d1050b9d MK |
58 | IN NET_MAP *TokenMap,\r |
59 | IN DNS6_TOKEN_ENTRY *TokenEntry\r | |
99c048ef | 60 | )\r |
61 | {\r | |
62 | NET_MAP_ITEM *Item;\r | |
63 | \r | |
64 | //\r | |
65 | // Find the TokenEntry first.\r | |
66 | //\r | |
d1050b9d | 67 | Item = NetMapFindKey (TokenMap, (VOID *)TokenEntry);\r |
99c048ef | 68 | \r |
69 | if (Item != NULL) {\r | |
70 | //\r | |
71 | // Remove the TokenEntry if it's found in the map.\r | |
72 | //\r | |
73 | NetMapRemoveItem (TokenMap, Item, NULL);\r | |
74 | \r | |
75 | return EFI_SUCCESS;\r | |
76 | }\r | |
f75a7f56 | 77 | \r |
99c048ef | 78 | return EFI_NOT_FOUND;\r |
79 | }\r | |
80 | \r | |
81 | /**\r | |
81a46615 | 82 | This function cancel the token specified by Arg in the Map.\r |
99c048ef | 83 | \r |
84 | @param[in] Map Pointer to the NET_MAP.\r | |
85 | @param[in] Item Pointer to the NET_MAP_ITEM.\r | |
86 | @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r | |
87 | the tokens in this Map will be cancelled.\r | |
88 | This parameter is optional and may be NULL.\r | |
89 | \r | |
90 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r | |
91 | is not the same as that in the Item, if Arg is not\r | |
92 | NULL.\r | |
93 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r | |
94 | cancelled.\r | |
95 | \r | |
96 | **/\r | |
97 | EFI_STATUS\r | |
98 | EFIAPI\r | |
99 | Dns4CancelTokens (\r | |
100 | IN NET_MAP *Map,\r | |
101 | IN NET_MAP_ITEM *Item,\r | |
102 | IN VOID *Arg OPTIONAL\r | |
103 | )\r | |
104 | {\r | |
d1050b9d MK |
105 | DNS4_TOKEN_ENTRY *TokenEntry;\r |
106 | NET_BUF *Packet;\r | |
107 | UDP_IO *UdpIo;\r | |
99c048ef | 108 | \r |
109 | if ((Arg != NULL) && (Item->Key != Arg)) {\r | |
110 | return EFI_SUCCESS;\r | |
111 | }\r | |
112 | \r | |
113 | if (Item->Value != NULL) {\r | |
114 | //\r | |
115 | // If the TokenEntry is a transmit TokenEntry, the corresponding Packet is recorded in\r | |
116 | // Item->Value.\r | |
117 | //\r | |
d1050b9d MK |
118 | Packet = (NET_BUF *)(Item->Value);\r |
119 | UdpIo = (UDP_IO *)(*((UINTN *)&Packet->ProtoData[0]));\r | |
99c048ef | 120 | \r |
121 | UdpIoCancelSentDatagram (UdpIo, Packet);\r | |
122 | }\r | |
123 | \r | |
124 | //\r | |
125 | // Remove TokenEntry from Dns4TxTokens.\r | |
126 | //\r | |
d1050b9d | 127 | TokenEntry = (DNS4_TOKEN_ENTRY *)Item->Key;\r |
99c048ef | 128 | if (Dns4RemoveTokenEntry (Map, TokenEntry) == EFI_SUCCESS) {\r |
129 | TokenEntry->Token->Status = EFI_ABORTED;\r | |
130 | gBS->SignalEvent (TokenEntry->Token->Event);\r | |
131 | DispatchDpc ();\r | |
132 | }\r | |
133 | \r | |
134 | if (Arg != NULL) {\r | |
135 | return EFI_ABORTED;\r | |
136 | }\r | |
137 | \r | |
138 | return EFI_SUCCESS;\r | |
139 | }\r | |
140 | \r | |
141 | /**\r | |
81a46615 | 142 | This function cancel the token specified by Arg in the Map.\r |
99c048ef | 143 | \r |
144 | @param[in] Map Pointer to the NET_MAP.\r | |
145 | @param[in] Item Pointer to the NET_MAP_ITEM.\r | |
146 | @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r | |
147 | the tokens in this Map will be cancelled.\r | |
148 | This parameter is optional and may be NULL.\r | |
149 | \r | |
150 | @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r | |
151 | is not the same as that in the Item, if Arg is not\r | |
152 | NULL.\r | |
153 | @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r | |
154 | cancelled.\r | |
155 | \r | |
156 | **/\r | |
157 | EFI_STATUS\r | |
158 | EFIAPI\r | |
159 | Dns6CancelTokens (\r | |
160 | IN NET_MAP *Map,\r | |
161 | IN NET_MAP_ITEM *Item,\r | |
162 | IN VOID *Arg OPTIONAL\r | |
163 | )\r | |
164 | {\r | |
d1050b9d MK |
165 | DNS6_TOKEN_ENTRY *TokenEntry;\r |
166 | NET_BUF *Packet;\r | |
167 | UDP_IO *UdpIo;\r | |
99c048ef | 168 | \r |
169 | if ((Arg != NULL) && (Item->Key != Arg)) {\r | |
170 | return EFI_SUCCESS;\r | |
171 | }\r | |
172 | \r | |
173 | if (Item->Value != NULL) {\r | |
174 | //\r | |
175 | // If the TokenEntry is a transmit TokenEntry, the corresponding Packet is recorded in\r | |
176 | // Item->Value.\r | |
177 | //\r | |
d1050b9d MK |
178 | Packet = (NET_BUF *)(Item->Value);\r |
179 | UdpIo = (UDP_IO *)(*((UINTN *)&Packet->ProtoData[0]));\r | |
99c048ef | 180 | \r |
181 | UdpIoCancelSentDatagram (UdpIo, Packet);\r | |
182 | }\r | |
183 | \r | |
184 | //\r | |
185 | // Remove TokenEntry from Dns6TxTokens.\r | |
186 | //\r | |
d1050b9d | 187 | TokenEntry = (DNS6_TOKEN_ENTRY *)Item->Key;\r |
99c048ef | 188 | if (Dns6RemoveTokenEntry (Map, TokenEntry) == EFI_SUCCESS) {\r |
189 | TokenEntry->Token->Status = EFI_ABORTED;\r | |
190 | gBS->SignalEvent (TokenEntry->Token->Event);\r | |
191 | DispatchDpc ();\r | |
192 | }\r | |
193 | \r | |
194 | if (Arg != NULL) {\r | |
195 | return EFI_ABORTED;\r | |
196 | }\r | |
197 | \r | |
198 | return EFI_SUCCESS;\r | |
199 | }\r | |
200 | \r | |
201 | /**\r | |
202 | Get the TokenEntry from the TokensMap.\r | |
203 | \r | |
204 | @param[in] TokensMap All DNSv4 Token entrys\r | |
205 | @param[in] Token Pointer to the token to be get.\r | |
206 | @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r | |
207 | \r | |
81a46615 | 208 | @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r |
99c048ef | 209 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r |
210 | \r | |
211 | **/\r | |
212 | EFI_STATUS\r | |
213 | EFIAPI\r | |
214 | GetDns4TokenEntry (\r | |
d1050b9d MK |
215 | IN NET_MAP *TokensMap,\r |
216 | IN EFI_DNS4_COMPLETION_TOKEN *Token,\r | |
217 | OUT DNS4_TOKEN_ENTRY **TokenEntry\r | |
99c048ef | 218 | )\r |
219 | {\r | |
d1050b9d | 220 | LIST_ENTRY *Entry;\r |
f75a7f56 | 221 | \r |
d1050b9d | 222 | NET_MAP_ITEM *Item;\r |
f75a7f56 | 223 | \r |
99c048ef | 224 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r |
d1050b9d MK |
225 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r |
226 | *TokenEntry = (DNS4_TOKEN_ENTRY *)(Item->Key);\r | |
99c048ef | 227 | if ((*TokenEntry)->Token == Token) {\r |
228 | return EFI_SUCCESS;\r | |
229 | }\r | |
230 | }\r | |
f75a7f56 | 231 | \r |
99c048ef | 232 | *TokenEntry = NULL;\r |
f75a7f56 | 233 | \r |
99c048ef | 234 | return EFI_NOT_FOUND;\r |
235 | }\r | |
236 | \r | |
237 | /**\r | |
238 | Get the TokenEntry from the TokensMap.\r | |
239 | \r | |
240 | @param[in] TokensMap All DNSv6 Token entrys\r | |
241 | @param[in] Token Pointer to the token to be get.\r | |
242 | @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r | |
243 | \r | |
81a46615 | 244 | @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r |
99c048ef | 245 | @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r |
246 | \r | |
247 | **/\r | |
248 | EFI_STATUS\r | |
249 | EFIAPI\r | |
250 | GetDns6TokenEntry (\r | |
d1050b9d MK |
251 | IN NET_MAP *TokensMap,\r |
252 | IN EFI_DNS6_COMPLETION_TOKEN *Token,\r | |
253 | OUT DNS6_TOKEN_ENTRY **TokenEntry\r | |
99c048ef | 254 | )\r |
255 | {\r | |
d1050b9d | 256 | LIST_ENTRY *Entry;\r |
f75a7f56 | 257 | \r |
d1050b9d | 258 | NET_MAP_ITEM *Item;\r |
f75a7f56 | 259 | \r |
99c048ef | 260 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r |
d1050b9d MK |
261 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r |
262 | *TokenEntry = (DNS6_TOKEN_ENTRY *)(Item->Key);\r | |
99c048ef | 263 | if ((*TokenEntry)->Token == Token) {\r |
264 | return EFI_SUCCESS;\r | |
265 | }\r | |
266 | }\r | |
f75a7f56 | 267 | \r |
d1050b9d | 268 | *TokenEntry = NULL;\r |
f75a7f56 | 269 | \r |
99c048ef | 270 | return EFI_NOT_FOUND;\r |
271 | }\r | |
272 | \r | |
273 | /**\r | |
274 | Cancel DNS4 tokens from the DNS4 instance.\r | |
275 | \r | |
276 | @param[in] Instance Pointer to the DNS instance context data.\r | |
277 | @param[in] Token Pointer to the token to be canceled. If NULL, all\r | |
278 | tokens in this instance will be cancelled.\r | |
279 | This parameter is optional and may be NULL.\r | |
280 | \r | |
281 | @retval EFI_SUCCESS The Token is cancelled.\r | |
282 | @retval EFI_NOT_FOUND The Token is not found.\r | |
283 | \r | |
284 | **/\r | |
285 | EFI_STATUS\r | |
286 | Dns4InstanceCancelToken (\r | |
287 | IN DNS_INSTANCE *Instance,\r | |
288 | IN EFI_DNS4_COMPLETION_TOKEN *Token\r | |
289 | )\r | |
290 | {\r | |
291 | EFI_STATUS Status;\r | |
292 | DNS4_TOKEN_ENTRY *TokenEntry;\r | |
293 | \r | |
294 | TokenEntry = NULL;\r | |
295 | \r | |
d1050b9d | 296 | if (Token != NULL ) {\r |
99c048ef | 297 | Status = GetDns4TokenEntry (&Instance->Dns4TxTokens, Token, &TokenEntry);\r |
298 | if (EFI_ERROR (Status)) {\r | |
299 | return Status;\r | |
300 | }\r | |
301 | } else {\r | |
302 | TokenEntry = NULL;\r | |
303 | }\r | |
304 | \r | |
305 | //\r | |
306 | // Cancel this TokenEntry from the Dns4TxTokens map.\r | |
307 | //\r | |
308 | Status = NetMapIterate (&Instance->Dns4TxTokens, Dns4CancelTokens, TokenEntry);\r | |
309 | \r | |
310 | if ((TokenEntry != NULL) && (Status == EFI_ABORTED)) {\r | |
311 | //\r | |
312 | // If Token isn't NULL and Status is EFI_ABORTED, the token is cancelled from\r | |
313 | // the Dns4TxTokens and returns success.\r | |
314 | //\r | |
315 | if (NetMapIsEmpty (&Instance->Dns4TxTokens)) {\r | |
d1050b9d | 316 | Instance->UdpIo->Protocol.Udp4->Cancel (Instance->UdpIo->Protocol.Udp4, &Instance->UdpIo->RecvRequest->Token.Udp4);\r |
99c048ef | 317 | }\r |
d1050b9d | 318 | \r |
99c048ef | 319 | return EFI_SUCCESS;\r |
320 | }\r | |
321 | \r | |
322 | ASSERT ((TokenEntry != NULL) || (0 == NetMapGetCount (&Instance->Dns4TxTokens)));\r | |
f75a7f56 | 323 | \r |
99c048ef | 324 | if (NetMapIsEmpty (&Instance->Dns4TxTokens)) {\r |
325 | Instance->UdpIo->Protocol.Udp4->Cancel (Instance->UdpIo->Protocol.Udp4, &Instance->UdpIo->RecvRequest->Token.Udp4);\r | |
326 | }\r | |
327 | \r | |
328 | return EFI_SUCCESS;\r | |
329 | }\r | |
330 | \r | |
331 | /**\r | |
332 | Cancel DNS6 tokens from the DNS6 instance.\r | |
333 | \r | |
334 | @param[in] Instance Pointer to the DNS instance context data.\r | |
335 | @param[in] Token Pointer to the token to be canceled. If NULL, all\r | |
336 | tokens in this instance will be cancelled.\r | |
337 | This parameter is optional and may be NULL.\r | |
338 | \r | |
339 | @retval EFI_SUCCESS The Token is cancelled.\r | |
340 | @retval EFI_NOT_FOUND The Token is not found.\r | |
341 | \r | |
342 | **/\r | |
343 | EFI_STATUS\r | |
344 | Dns6InstanceCancelToken (\r | |
345 | IN DNS_INSTANCE *Instance,\r | |
346 | IN EFI_DNS6_COMPLETION_TOKEN *Token\r | |
347 | )\r | |
348 | {\r | |
349 | EFI_STATUS Status;\r | |
350 | DNS6_TOKEN_ENTRY *TokenEntry;\r | |
351 | \r | |
352 | TokenEntry = NULL;\r | |
353 | \r | |
d1050b9d | 354 | if (Token != NULL ) {\r |
99c048ef | 355 | Status = GetDns6TokenEntry (&Instance->Dns6TxTokens, Token, &TokenEntry);\r |
356 | if (EFI_ERROR (Status)) {\r | |
357 | return Status;\r | |
358 | }\r | |
359 | } else {\r | |
360 | TokenEntry = NULL;\r | |
361 | }\r | |
362 | \r | |
363 | //\r | |
364 | // Cancel this TokenEntry from the Dns6TxTokens map.\r | |
365 | //\r | |
366 | Status = NetMapIterate (&Instance->Dns6TxTokens, Dns6CancelTokens, TokenEntry);\r | |
367 | \r | |
368 | if ((TokenEntry != NULL) && (Status == EFI_ABORTED)) {\r | |
369 | //\r | |
370 | // If Token isn't NULL and Status is EFI_ABORTED, the token is cancelled from\r | |
371 | // the Dns6TxTokens and returns success.\r | |
372 | //\r | |
373 | if (NetMapIsEmpty (&Instance->Dns6TxTokens)) {\r | |
d1050b9d | 374 | Instance->UdpIo->Protocol.Udp6->Cancel (Instance->UdpIo->Protocol.Udp6, &Instance->UdpIo->RecvRequest->Token.Udp6);\r |
99c048ef | 375 | }\r |
d1050b9d | 376 | \r |
99c048ef | 377 | return EFI_SUCCESS;\r |
378 | }\r | |
379 | \r | |
380 | ASSERT ((TokenEntry != NULL) || (0 == NetMapGetCount (&Instance->Dns6TxTokens)));\r | |
f75a7f56 | 381 | \r |
99c048ef | 382 | if (NetMapIsEmpty (&Instance->Dns6TxTokens)) {\r |
383 | Instance->UdpIo->Protocol.Udp6->Cancel (Instance->UdpIo->Protocol.Udp6, &Instance->UdpIo->RecvRequest->Token.Udp6);\r | |
384 | }\r | |
385 | \r | |
386 | return EFI_SUCCESS;\r | |
387 | }\r | |
388 | \r | |
389 | /**\r | |
390 | Free the resource related to the configure parameters.\r | |
391 | \r | |
392 | @param Config The DNS configure data\r | |
393 | \r | |
394 | **/\r | |
395 | VOID\r | |
396 | Dns4CleanConfigure (\r | |
397 | IN OUT EFI_DNS4_CONFIG_DATA *Config\r | |
398 | )\r | |
399 | {\r | |
400 | if (Config->DnsServerList != NULL) {\r | |
401 | FreePool (Config->DnsServerList);\r | |
402 | }\r | |
403 | \r | |
404 | ZeroMem (Config, sizeof (EFI_DNS4_CONFIG_DATA));\r | |
405 | }\r | |
406 | \r | |
407 | /**\r | |
408 | Free the resource related to the configure parameters.\r | |
409 | \r | |
410 | @param Config The DNS configure data\r | |
411 | \r | |
412 | **/\r | |
413 | VOID\r | |
414 | Dns6CleanConfigure (\r | |
415 | IN OUT EFI_DNS6_CONFIG_DATA *Config\r | |
416 | )\r | |
417 | {\r | |
418 | if (Config->DnsServerList != NULL) {\r | |
419 | FreePool (Config->DnsServerList);\r | |
420 | }\r | |
421 | \r | |
422 | ZeroMem (Config, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
423 | }\r | |
424 | \r | |
425 | /**\r | |
426 | Allocate memory for configure parameter such as timeout value for Dst,\r | |
427 | then copy the configure parameter from Src to Dst.\r | |
428 | \r | |
429 | @param[out] Dst The destination DHCP configure data.\r | |
430 | @param[in] Src The source DHCP configure data.\r | |
431 | \r | |
432 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
433 | @retval EFI_SUCCESS The configure is copied.\r | |
434 | \r | |
435 | **/\r | |
436 | EFI_STATUS\r | |
437 | Dns4CopyConfigure (\r | |
438 | OUT EFI_DNS4_CONFIG_DATA *Dst,\r | |
439 | IN EFI_DNS4_CONFIG_DATA *Src\r | |
440 | )\r | |
441 | {\r | |
d1050b9d MK |
442 | UINTN Len;\r |
443 | UINT32 Index;\r | |
99c048ef | 444 | \r |
445 | CopyMem (Dst, Src, sizeof (*Dst));\r | |
446 | Dst->DnsServerList = NULL;\r | |
447 | \r | |
448 | //\r | |
449 | // Allocate a memory then copy DnsServerList to it\r | |
450 | //\r | |
451 | if (Src->DnsServerList != NULL) {\r | |
452 | Len = Src->DnsServerListCount * sizeof (EFI_IPv4_ADDRESS);\r | |
453 | Dst->DnsServerList = AllocatePool (Len);\r | |
454 | if (Dst->DnsServerList == NULL) {\r | |
455 | Dns4CleanConfigure (Dst);\r | |
456 | return EFI_OUT_OF_RESOURCES;\r | |
457 | }\r | |
458 | \r | |
459 | for (Index = 0; Index < Src->DnsServerListCount; Index++) {\r | |
460 | CopyMem (&Dst->DnsServerList[Index], &Src->DnsServerList[Index], sizeof (EFI_IPv4_ADDRESS));\r | |
461 | }\r | |
462 | }\r | |
463 | \r | |
464 | return EFI_SUCCESS;\r | |
465 | }\r | |
466 | \r | |
467 | /**\r | |
468 | Allocate memory for configure parameter such as timeout value for Dst,\r | |
469 | then copy the configure parameter from Src to Dst.\r | |
470 | \r | |
471 | @param[out] Dst The destination DHCP configure data.\r | |
472 | @param[in] Src The source DHCP configure data.\r | |
473 | \r | |
474 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
475 | @retval EFI_SUCCESS The configure is copied.\r | |
476 | \r | |
477 | **/\r | |
478 | EFI_STATUS\r | |
479 | Dns6CopyConfigure (\r | |
480 | OUT EFI_DNS6_CONFIG_DATA *Dst,\r | |
481 | IN EFI_DNS6_CONFIG_DATA *Src\r | |
482 | )\r | |
483 | {\r | |
d1050b9d MK |
484 | UINTN Len;\r |
485 | UINT32 Index;\r | |
99c048ef | 486 | \r |
487 | CopyMem (Dst, Src, sizeof (*Dst));\r | |
488 | Dst->DnsServerList = NULL;\r | |
489 | \r | |
490 | //\r | |
491 | // Allocate a memory then copy DnsServerList to it\r | |
492 | //\r | |
493 | if (Src->DnsServerList != NULL) {\r | |
494 | Len = Src->DnsServerCount * sizeof (EFI_IPv6_ADDRESS);\r | |
495 | Dst->DnsServerList = AllocatePool (Len);\r | |
496 | if (Dst->DnsServerList == NULL) {\r | |
497 | Dns6CleanConfigure (Dst);\r | |
498 | return EFI_OUT_OF_RESOURCES;\r | |
499 | }\r | |
500 | \r | |
501 | for (Index = 0; Index < Src->DnsServerCount; Index++) {\r | |
502 | CopyMem (&Dst->DnsServerList[Index], &Src->DnsServerList[Index], sizeof (EFI_IPv6_ADDRESS));\r | |
503 | }\r | |
504 | }\r | |
505 | \r | |
506 | return EFI_SUCCESS;\r | |
507 | }\r | |
508 | \r | |
509 | /**\r | |
510 | Callback of Dns packet. Does nothing.\r | |
511 | \r | |
512 | @param Arg The context.\r | |
513 | \r | |
514 | **/\r | |
515 | VOID\r | |
516 | EFIAPI\r | |
517 | DnsDummyExtFree (\r | |
d1050b9d | 518 | IN VOID *Arg\r |
99c048ef | 519 | )\r |
520 | {\r | |
521 | }\r | |
522 | \r | |
523 | /**\r | |
524 | Poll the UDP to get the IP4 default address, which may be retrieved\r | |
f75a7f56 LG |
525 | by DHCP.\r |
526 | \r | |
527 | The default time out value is 5 seconds. If IP has retrieved the default address,\r | |
99c048ef | 528 | the UDP is reconfigured.\r |
529 | \r | |
530 | @param Instance The DNS instance\r | |
531 | @param UdpIo The UDP_IO to poll\r | |
532 | @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r | |
533 | \r | |
534 | @retval TRUE The default address is retrieved and UDP is reconfigured.\r | |
81a46615 | 535 | @retval FALSE Some error occurred.\r |
99c048ef | 536 | \r |
537 | **/\r | |
538 | BOOLEAN\r | |
539 | Dns4GetMapping (\r | |
d1050b9d MK |
540 | IN DNS_INSTANCE *Instance,\r |
541 | IN UDP_IO *UdpIo,\r | |
542 | IN EFI_UDP4_CONFIG_DATA *UdpCfgData\r | |
99c048ef | 543 | )\r |
544 | {\r | |
d1050b9d MK |
545 | DNS_SERVICE *Service;\r |
546 | EFI_IP4_MODE_DATA Ip4Mode;\r | |
547 | EFI_UDP4_PROTOCOL *Udp;\r | |
548 | EFI_STATUS Status;\r | |
99c048ef | 549 | \r |
550 | ASSERT (Instance->Dns4CfgData.UseDefaultSetting);\r | |
551 | \r | |
552 | Service = Instance->Service;\r | |
553 | Udp = UdpIo->Protocol.Udp4;\r | |
554 | \r | |
555 | Status = gBS->SetTimer (\r | |
556 | Service->TimerToGetMap,\r | |
557 | TimerRelative,\r | |
558 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
559 | );\r | |
560 | if (EFI_ERROR (Status)) {\r | |
561 | return FALSE;\r | |
562 | }\r | |
563 | \r | |
d115b80b | 564 | while (EFI_ERROR (gBS->CheckEvent (Service->TimerToGetMap))) {\r |
99c048ef | 565 | Udp->Poll (Udp);\r |
566 | \r | |
567 | if (!EFI_ERROR (Udp->GetModeData (Udp, NULL, &Ip4Mode, NULL, NULL)) &&\r | |
d1050b9d MK |
568 | Ip4Mode.IsConfigured)\r |
569 | {\r | |
99c048ef | 570 | Udp->Configure (Udp, NULL);\r |
d1050b9d | 571 | return (BOOLEAN)(Udp->Configure (Udp, UdpCfgData) == EFI_SUCCESS);\r |
99c048ef | 572 | }\r |
573 | }\r | |
574 | \r | |
575 | return FALSE;\r | |
576 | }\r | |
577 | \r | |
578 | /**\r | |
579 | Configure the opened Udp6 instance until the corresponding Ip6 instance\r | |
580 | has been configured.\r | |
581 | \r | |
582 | @param Instance The DNS instance\r | |
583 | @param UdpIo The UDP_IO to poll\r | |
584 | @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r | |
585 | \r | |
586 | @retval TRUE Configure the Udp6 instance successfully.\r | |
81a46615 | 587 | @retval FALSE Some error occurred.\r |
99c048ef | 588 | \r |
589 | **/\r | |
590 | BOOLEAN\r | |
591 | Dns6GetMapping (\r | |
d1050b9d MK |
592 | IN DNS_INSTANCE *Instance,\r |
593 | IN UDP_IO *UdpIo,\r | |
594 | IN EFI_UDP6_CONFIG_DATA *UdpCfgData\r | |
99c048ef | 595 | )\r |
596 | {\r | |
d1050b9d MK |
597 | DNS_SERVICE *Service;\r |
598 | EFI_IP6_MODE_DATA Ip6Mode;\r | |
599 | EFI_UDP6_PROTOCOL *Udp;\r | |
600 | EFI_STATUS Status;\r | |
99c048ef | 601 | \r |
602 | Service = Instance->Service;\r | |
603 | Udp = UdpIo->Protocol.Udp6;\r | |
604 | \r | |
605 | Status = gBS->SetTimer (\r | |
606 | Service->TimerToGetMap,\r | |
607 | TimerRelative,\r | |
608 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
609 | );\r | |
610 | if (EFI_ERROR (Status)) {\r | |
611 | return FALSE;\r | |
612 | }\r | |
613 | \r | |
d115b80b | 614 | while (EFI_ERROR (gBS->CheckEvent (Service->TimerToGetMap))) {\r |
99c048ef | 615 | Udp->Poll (Udp);\r |
616 | \r | |
ce22514e ZL |
617 | if (!EFI_ERROR (Udp->GetModeData (Udp, NULL, &Ip6Mode, NULL, NULL))) {\r |
618 | if (Ip6Mode.AddressList != NULL) {\r | |
619 | FreePool (Ip6Mode.AddressList);\r | |
620 | }\r | |
99c048ef | 621 | \r |
ce22514e ZL |
622 | if (Ip6Mode.GroupTable != NULL) {\r |
623 | FreePool (Ip6Mode.GroupTable);\r | |
624 | }\r | |
625 | \r | |
626 | if (Ip6Mode.RouteTable != NULL) {\r | |
627 | FreePool (Ip6Mode.RouteTable);\r | |
628 | }\r | |
629 | \r | |
630 | if (Ip6Mode.NeighborCache != NULL) {\r | |
631 | FreePool (Ip6Mode.NeighborCache);\r | |
632 | }\r | |
633 | \r | |
634 | if (Ip6Mode.PrefixTable != NULL) {\r | |
635 | FreePool (Ip6Mode.PrefixTable);\r | |
636 | }\r | |
637 | \r | |
638 | if (Ip6Mode.IcmpTypeList != NULL) {\r | |
639 | FreePool (Ip6Mode.IcmpTypeList);\r | |
640 | }\r | |
641 | \r | |
eed4585b | 642 | if (!Ip6Mode.IsStarted || Ip6Mode.IsConfigured) {\r |
ce22514e | 643 | Udp->Configure (Udp, NULL);\r |
eed4585b JW |
644 | if (Udp->Configure (Udp, UdpCfgData) == EFI_SUCCESS) {\r |
645 | return TRUE;\r | |
646 | }\r | |
ce22514e | 647 | }\r |
99c048ef | 648 | }\r |
649 | }\r | |
650 | \r | |
651 | return FALSE;\r | |
652 | }\r | |
653 | \r | |
654 | /**\r | |
655 | Configure the UDP.\r | |
f75a7f56 | 656 | \r |
99c048ef | 657 | @param Instance The DNS session\r |
658 | @param UdpIo The UDP_IO instance\r | |
f75a7f56 | 659 | \r |
99c048ef | 660 | @retval EFI_SUCCESS The UDP is successfully configured for the\r |
661 | session.\r | |
662 | \r | |
663 | **/\r | |
664 | EFI_STATUS\r | |
665 | Dns4ConfigUdp (\r | |
d1050b9d MK |
666 | IN DNS_INSTANCE *Instance,\r |
667 | IN UDP_IO *UdpIo\r | |
99c048ef | 668 | )\r |
669 | {\r | |
d1050b9d MK |
670 | EFI_DNS4_CONFIG_DATA *Config;\r |
671 | EFI_UDP4_CONFIG_DATA UdpConfig;\r | |
672 | EFI_STATUS Status;\r | |
99c048ef | 673 | \r |
674 | Config = &Instance->Dns4CfgData;\r | |
675 | \r | |
676 | UdpConfig.AcceptBroadcast = FALSE;\r | |
677 | UdpConfig.AcceptPromiscuous = FALSE;\r | |
678 | UdpConfig.AcceptAnyPort = FALSE;\r | |
679 | UdpConfig.AllowDuplicatePort = FALSE;\r | |
680 | UdpConfig.TypeOfService = 0;\r | |
681 | UdpConfig.TimeToLive = 128;\r | |
682 | UdpConfig.DoNotFragment = FALSE;\r | |
683 | UdpConfig.ReceiveTimeout = 0;\r | |
684 | UdpConfig.TransmitTimeout = 0;\r | |
685 | UdpConfig.UseDefaultAddress = Config->UseDefaultSetting;\r | |
686 | UdpConfig.SubnetMask = Config->SubnetMask;\r | |
687 | UdpConfig.StationPort = Config->LocalPort;\r | |
688 | UdpConfig.RemotePort = DNS_SERVER_PORT;\r | |
689 | \r | |
690 | CopyMem (&UdpConfig.StationAddress, &Config->StationIp, sizeof (EFI_IPv4_ADDRESS));\r | |
691 | CopyMem (&UdpConfig.RemoteAddress, &Instance->SessionDnsServer.v4, sizeof (EFI_IPv4_ADDRESS));\r | |
692 | \r | |
693 | Status = UdpIo->Protocol.Udp4->Configure (UdpIo->Protocol.Udp4, &UdpConfig);\r | |
694 | \r | |
695 | if ((Status == EFI_NO_MAPPING) && Dns4GetMapping (Instance, UdpIo, &UdpConfig)) {\r | |
696 | return EFI_SUCCESS;\r | |
697 | }\r | |
f75a7f56 | 698 | \r |
99c048ef | 699 | return Status;\r |
700 | }\r | |
701 | \r | |
702 | /**\r | |
703 | Configure the UDP.\r | |
f75a7f56 | 704 | \r |
99c048ef | 705 | @param Instance The DNS session\r |
706 | @param UdpIo The UDP_IO instance\r | |
707 | \r | |
708 | @retval EFI_SUCCESS The UDP is successfully configured for the\r | |
709 | session.\r | |
710 | \r | |
711 | **/\r | |
712 | EFI_STATUS\r | |
713 | Dns6ConfigUdp (\r | |
d1050b9d MK |
714 | IN DNS_INSTANCE *Instance,\r |
715 | IN UDP_IO *UdpIo\r | |
99c048ef | 716 | )\r |
717 | {\r | |
d1050b9d MK |
718 | EFI_DNS6_CONFIG_DATA *Config;\r |
719 | EFI_UDP6_CONFIG_DATA UdpConfig;\r | |
720 | EFI_STATUS Status;\r | |
99c048ef | 721 | \r |
722 | Config = &Instance->Dns6CfgData;\r | |
723 | \r | |
724 | UdpConfig.AcceptPromiscuous = FALSE;\r | |
725 | UdpConfig.AcceptAnyPort = FALSE;\r | |
726 | UdpConfig.AllowDuplicatePort = FALSE;\r | |
727 | UdpConfig.TrafficClass = 0;\r | |
728 | UdpConfig.HopLimit = 128;\r | |
729 | UdpConfig.ReceiveTimeout = 0;\r | |
730 | UdpConfig.TransmitTimeout = 0;\r | |
731 | UdpConfig.StationPort = Config->LocalPort;\r | |
732 | UdpConfig.RemotePort = DNS_SERVER_PORT;\r | |
733 | CopyMem (&UdpConfig.StationAddress, &Config->StationIp, sizeof (EFI_IPv6_ADDRESS));\r | |
734 | CopyMem (&UdpConfig.RemoteAddress, &Instance->SessionDnsServer.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
735 | \r | |
736 | Status = UdpIo->Protocol.Udp6->Configure (UdpIo->Protocol.Udp6, &UdpConfig);\r | |
737 | \r | |
738 | if ((Status == EFI_NO_MAPPING) && Dns6GetMapping (Instance, UdpIo, &UdpConfig)) {\r | |
739 | return EFI_SUCCESS;\r | |
740 | }\r | |
f75a7f56 | 741 | \r |
99c048ef | 742 | return Status;\r |
743 | }\r | |
744 | \r | |
745 | /**\r | |
746 | Update Dns4 cache to shared list of caches of all DNSv4 instances.\r | |
f75a7f56 | 747 | \r |
99c048ef | 748 | @param Dns4CacheList All Dns4 cache list.\r |
f75a7f56 LG |
749 | @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r |
750 | If TRUE, this function will delete matching DNS Cache entry.\r | |
751 | @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r | |
99c048ef | 752 | If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r |
753 | @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r | |
754 | \r | |
755 | @retval EFI_SUCCESS Update Dns4 cache successfully.\r | |
f75a7f56 LG |
756 | @retval Others Failed to update Dns4 cache.\r |
757 | \r | |
758 | **/\r | |
99c048ef | 759 | EFI_STATUS\r |
760 | EFIAPI\r | |
761 | UpdateDns4Cache (\r | |
d1050b9d MK |
762 | IN LIST_ENTRY *Dns4CacheList,\r |
763 | IN BOOLEAN DeleteFlag,\r | |
764 | IN BOOLEAN Override,\r | |
765 | IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r | |
99c048ef | 766 | )\r |
767 | {\r | |
d1050b9d MK |
768 | DNS4_CACHE *NewDnsCache;\r |
769 | DNS4_CACHE *Item;\r | |
770 | LIST_ENTRY *Entry;\r | |
771 | LIST_ENTRY *Next;\r | |
99c048ef | 772 | \r |
773 | NewDnsCache = NULL;\r | |
774 | Item = NULL;\r | |
f75a7f56 | 775 | \r |
99c048ef | 776 | //\r |
777 | // Search the database for the matching EFI_DNS_CACHE_ENTRY\r | |
778 | //\r | |
779 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns4CacheList) {\r | |
780 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
d1050b9d MK |
781 | if ((StrCmp (DnsCacheEntry.HostName, Item->DnsCache.HostName) == 0) && \\r |
782 | (CompareMem (DnsCacheEntry.IpAddress, Item->DnsCache.IpAddress, sizeof (EFI_IPv4_ADDRESS)) == 0))\r | |
783 | {\r | |
99c048ef | 784 | //\r |
785 | // This is the Dns cache entry\r | |
786 | //\r | |
787 | if (DeleteFlag) {\r | |
788 | //\r | |
789 | // Delete matching DNS Cache entry\r | |
790 | //\r | |
791 | RemoveEntryList (&Item->AllCacheLink);\r | |
43d7e607 JW |
792 | \r |
793 | FreePool (Item->DnsCache.HostName);\r | |
794 | FreePool (Item->DnsCache.IpAddress);\r | |
795 | FreePool (Item);\r | |
f75a7f56 | 796 | \r |
99c048ef | 797 | return EFI_SUCCESS;\r |
798 | } else if (Override) {\r | |
799 | //\r | |
800 | // Update this one\r | |
801 | //\r | |
802 | Item->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 803 | \r |
99c048ef | 804 | return EFI_SUCCESS;\r |
4ad1bd63 | 805 | } else {\r |
99c048ef | 806 | return EFI_ACCESS_DENIED;\r |
807 | }\r | |
808 | }\r | |
809 | }\r | |
810 | \r | |
811 | //\r | |
812 | // Add new one\r | |
813 | //\r | |
814 | NewDnsCache = AllocatePool (sizeof (DNS4_CACHE));\r | |
f75a7f56 | 815 | if (NewDnsCache == NULL) {\r |
99c048ef | 816 | return EFI_OUT_OF_RESOURCES;\r |
817 | }\r | |
f75a7f56 | 818 | \r |
99c048ef | 819 | InitializeListHead (&NewDnsCache->AllCacheLink);\r |
f75a7f56 | 820 | \r |
99c048ef | 821 | NewDnsCache->DnsCache.HostName = AllocatePool (StrSize (DnsCacheEntry.HostName));\r |
f75a7f56 | 822 | if (NewDnsCache->DnsCache.HostName == NULL) {\r |
43d7e607 | 823 | FreePool (NewDnsCache);\r |
99c048ef | 824 | return EFI_OUT_OF_RESOURCES;\r |
825 | }\r | |
f75a7f56 | 826 | \r |
99c048ef | 827 | CopyMem (NewDnsCache->DnsCache.HostName, DnsCacheEntry.HostName, StrSize (DnsCacheEntry.HostName));\r |
828 | \r | |
829 | NewDnsCache->DnsCache.IpAddress = AllocatePool (sizeof (EFI_IPv4_ADDRESS));\r | |
43d7e607 JW |
830 | if (NewDnsCache->DnsCache.IpAddress == NULL) {\r |
831 | FreePool (NewDnsCache->DnsCache.HostName);\r | |
832 | FreePool (NewDnsCache);\r | |
99c048ef | 833 | return EFI_OUT_OF_RESOURCES;\r |
834 | }\r | |
835 | \r | |
836 | CopyMem (NewDnsCache->DnsCache.IpAddress, DnsCacheEntry.IpAddress, sizeof (EFI_IPv4_ADDRESS));\r | |
837 | \r | |
838 | NewDnsCache->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 839 | \r |
99c048ef | 840 | InsertTailList (Dns4CacheList, &NewDnsCache->AllCacheLink);\r |
f75a7f56 | 841 | \r |
99c048ef | 842 | return EFI_SUCCESS;\r |
843 | }\r | |
844 | \r | |
845 | /**\r | |
f75a7f56 | 846 | Update Dns6 cache to shared list of caches of all DNSv6 instances.\r |
99c048ef | 847 | \r |
848 | @param Dns6CacheList All Dns6 cache list.\r | |
f75a7f56 LG |
849 | @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r |
850 | If TRUE, this function will delete matching DNS Cache entry.\r | |
851 | @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r | |
99c048ef | 852 | If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r |
853 | @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r | |
f75a7f56 | 854 | \r |
99c048ef | 855 | @retval EFI_SUCCESS Update Dns6 cache successfully.\r |
856 | @retval Others Failed to update Dns6 cache.\r | |
f75a7f56 | 857 | **/\r |
99c048ef | 858 | EFI_STATUS\r |
859 | EFIAPI\r | |
860 | UpdateDns6Cache (\r | |
d1050b9d MK |
861 | IN LIST_ENTRY *Dns6CacheList,\r |
862 | IN BOOLEAN DeleteFlag,\r | |
863 | IN BOOLEAN Override,\r | |
864 | IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r | |
99c048ef | 865 | )\r |
866 | {\r | |
d1050b9d MK |
867 | DNS6_CACHE *NewDnsCache;\r |
868 | DNS6_CACHE *Item;\r | |
869 | LIST_ENTRY *Entry;\r | |
870 | LIST_ENTRY *Next;\r | |
99c048ef | 871 | \r |
872 | NewDnsCache = NULL;\r | |
873 | Item = NULL;\r | |
f75a7f56 | 874 | \r |
99c048ef | 875 | //\r |
876 | // Search the database for the matching EFI_DNS_CACHE_ENTRY\r | |
877 | //\r | |
878 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns6CacheList) {\r | |
879 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
d1050b9d MK |
880 | if ((StrCmp (DnsCacheEntry.HostName, Item->DnsCache.HostName) == 0) && \\r |
881 | (CompareMem (DnsCacheEntry.IpAddress, Item->DnsCache.IpAddress, sizeof (EFI_IPv6_ADDRESS)) == 0))\r | |
882 | {\r | |
99c048ef | 883 | //\r |
884 | // This is the Dns cache entry\r | |
885 | //\r | |
886 | if (DeleteFlag) {\r | |
887 | //\r | |
888 | // Delete matching DNS Cache entry\r | |
889 | //\r | |
890 | RemoveEntryList (&Item->AllCacheLink);\r | |
f75a7f56 | 891 | \r |
43d7e607 JW |
892 | FreePool (Item->DnsCache.HostName);\r |
893 | FreePool (Item->DnsCache.IpAddress);\r | |
894 | FreePool (Item);\r | |
f75a7f56 | 895 | \r |
99c048ef | 896 | return EFI_SUCCESS;\r |
897 | } else if (Override) {\r | |
898 | //\r | |
899 | // Update this one\r | |
900 | //\r | |
901 | Item->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 902 | \r |
99c048ef | 903 | return EFI_SUCCESS;\r |
4ad1bd63 | 904 | } else {\r |
99c048ef | 905 | return EFI_ACCESS_DENIED;\r |
906 | }\r | |
907 | }\r | |
908 | }\r | |
909 | \r | |
910 | //\r | |
911 | // Add new one\r | |
912 | //\r | |
913 | NewDnsCache = AllocatePool (sizeof (DNS6_CACHE));\r | |
f75a7f56 | 914 | if (NewDnsCache == NULL) {\r |
99c048ef | 915 | return EFI_OUT_OF_RESOURCES;\r |
916 | }\r | |
f75a7f56 | 917 | \r |
99c048ef | 918 | InitializeListHead (&NewDnsCache->AllCacheLink);\r |
f75a7f56 | 919 | \r |
99c048ef | 920 | NewDnsCache->DnsCache.HostName = AllocatePool (StrSize (DnsCacheEntry.HostName));\r |
f75a7f56 | 921 | if (NewDnsCache->DnsCache.HostName == NULL) {\r |
43d7e607 | 922 | FreePool (NewDnsCache);\r |
99c048ef | 923 | return EFI_OUT_OF_RESOURCES;\r |
924 | }\r | |
f75a7f56 | 925 | \r |
99c048ef | 926 | CopyMem (NewDnsCache->DnsCache.HostName, DnsCacheEntry.HostName, StrSize (DnsCacheEntry.HostName));\r |
927 | \r | |
928 | NewDnsCache->DnsCache.IpAddress = AllocatePool (sizeof (EFI_IPv6_ADDRESS));\r | |
43d7e607 JW |
929 | if (NewDnsCache->DnsCache.IpAddress == NULL) {\r |
930 | FreePool (NewDnsCache->DnsCache.HostName);\r | |
931 | FreePool (NewDnsCache);\r | |
99c048ef | 932 | return EFI_OUT_OF_RESOURCES;\r |
933 | }\r | |
f75a7f56 | 934 | \r |
99c048ef | 935 | CopyMem (NewDnsCache->DnsCache.IpAddress, DnsCacheEntry.IpAddress, sizeof (EFI_IPv6_ADDRESS));\r |
936 | \r | |
937 | NewDnsCache->DnsCache.Timeout = DnsCacheEntry.Timeout;\r | |
f75a7f56 | 938 | \r |
99c048ef | 939 | InsertTailList (Dns6CacheList, &NewDnsCache->AllCacheLink);\r |
f75a7f56 | 940 | \r |
99c048ef | 941 | return EFI_SUCCESS;\r |
942 | }\r | |
943 | \r | |
944 | /**\r | |
f75a7f56 | 945 | Add Dns4 ServerIp to common list of addresses of all configured DNSv4 server.\r |
99c048ef | 946 | \r |
f75a7f56 LG |
947 | @param Dns4ServerList Common list of addresses of all configured DNSv4 server.\r |
948 | @param ServerIp DNS server Ip.\r | |
99c048ef | 949 | \r |
950 | @retval EFI_SUCCESS Add Dns4 ServerIp to common list successfully.\r | |
951 | @retval Others Failed to add Dns4 ServerIp to common list.\r | |
f75a7f56 LG |
952 | \r |
953 | **/\r | |
99c048ef | 954 | EFI_STATUS\r |
955 | EFIAPI\r | |
956 | AddDns4ServerIp (\r | |
d1050b9d MK |
957 | IN LIST_ENTRY *Dns4ServerList,\r |
958 | IN EFI_IPv4_ADDRESS ServerIp\r | |
99c048ef | 959 | )\r |
960 | {\r | |
d1050b9d MK |
961 | DNS4_SERVER_IP *NewServerIp;\r |
962 | DNS4_SERVER_IP *Item;\r | |
963 | LIST_ENTRY *Entry;\r | |
964 | LIST_ENTRY *Next;\r | |
99c048ef | 965 | \r |
966 | NewServerIp = NULL;\r | |
967 | Item = NULL;\r | |
f75a7f56 | 968 | \r |
99c048ef | 969 | //\r |
970 | // Search the database for the matching ServerIp\r | |
971 | //\r | |
972 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns4ServerList) {\r | |
973 | Item = NET_LIST_USER_STRUCT (Entry, DNS4_SERVER_IP, AllServerLink);\r | |
974 | if (CompareMem (&Item->Dns4ServerIp, &ServerIp, sizeof (EFI_IPv4_ADDRESS)) == 0) {\r | |
975 | //\r | |
976 | // Already done.\r | |
f75a7f56 | 977 | //\r |
99c048ef | 978 | return EFI_SUCCESS;\r |
979 | }\r | |
980 | }\r | |
981 | \r | |
982 | //\r | |
983 | // Add new one\r | |
984 | //\r | |
985 | NewServerIp = AllocatePool (sizeof (DNS4_SERVER_IP));\r | |
f75a7f56 | 986 | if (NewServerIp == NULL) {\r |
99c048ef | 987 | return EFI_OUT_OF_RESOURCES;\r |
988 | }\r | |
f75a7f56 | 989 | \r |
99c048ef | 990 | InitializeListHead (&NewServerIp->AllServerLink);\r |
f75a7f56 | 991 | \r |
99c048ef | 992 | CopyMem (&NewServerIp->Dns4ServerIp, &ServerIp, sizeof (EFI_IPv4_ADDRESS));\r |
f75a7f56 | 993 | \r |
99c048ef | 994 | InsertTailList (Dns4ServerList, &NewServerIp->AllServerLink);\r |
f75a7f56 | 995 | \r |
99c048ef | 996 | return EFI_SUCCESS;\r |
997 | }\r | |
998 | \r | |
999 | /**\r | |
f75a7f56 | 1000 | Add Dns6 ServerIp to common list of addresses of all configured DNSv6 server.\r |
99c048ef | 1001 | \r |
f75a7f56 LG |
1002 | @param Dns6ServerList Common list of addresses of all configured DNSv6 server.\r |
1003 | @param ServerIp DNS server Ip.\r | |
99c048ef | 1004 | \r |
1005 | @retval EFI_SUCCESS Add Dns6 ServerIp to common list successfully.\r | |
1006 | @retval Others Failed to add Dns6 ServerIp to common list.\r | |
f75a7f56 LG |
1007 | \r |
1008 | **/\r | |
99c048ef | 1009 | EFI_STATUS\r |
1010 | EFIAPI\r | |
1011 | AddDns6ServerIp (\r | |
d1050b9d MK |
1012 | IN LIST_ENTRY *Dns6ServerList,\r |
1013 | IN EFI_IPv6_ADDRESS ServerIp\r | |
99c048ef | 1014 | )\r |
1015 | {\r | |
d1050b9d MK |
1016 | DNS6_SERVER_IP *NewServerIp;\r |
1017 | DNS6_SERVER_IP *Item;\r | |
1018 | LIST_ENTRY *Entry;\r | |
1019 | LIST_ENTRY *Next;\r | |
99c048ef | 1020 | \r |
1021 | NewServerIp = NULL;\r | |
1022 | Item = NULL;\r | |
f75a7f56 | 1023 | \r |
99c048ef | 1024 | //\r |
1025 | // Search the database for the matching ServerIp\r | |
1026 | //\r | |
1027 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Dns6ServerList) {\r | |
1028 | Item = NET_LIST_USER_STRUCT (Entry, DNS6_SERVER_IP, AllServerLink);\r | |
1029 | if (CompareMem (&Item->Dns6ServerIp, &ServerIp, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1030 | //\r | |
1031 | // Already done.\r | |
f75a7f56 | 1032 | //\r |
99c048ef | 1033 | return EFI_SUCCESS;\r |
1034 | }\r | |
1035 | }\r | |
1036 | \r | |
1037 | //\r | |
1038 | // Add new one\r | |
1039 | //\r | |
1040 | NewServerIp = AllocatePool (sizeof (DNS6_SERVER_IP));\r | |
f75a7f56 | 1041 | if (NewServerIp == NULL) {\r |
99c048ef | 1042 | return EFI_OUT_OF_RESOURCES;\r |
1043 | }\r | |
f75a7f56 | 1044 | \r |
99c048ef | 1045 | InitializeListHead (&NewServerIp->AllServerLink);\r |
f75a7f56 | 1046 | \r |
99c048ef | 1047 | CopyMem (&NewServerIp->Dns6ServerIp, &ServerIp, sizeof (EFI_IPv6_ADDRESS));\r |
f75a7f56 | 1048 | \r |
99c048ef | 1049 | InsertTailList (Dns6ServerList, &NewServerIp->AllServerLink);\r |
f75a7f56 | 1050 | \r |
99c048ef | 1051 | return EFI_SUCCESS;\r |
1052 | }\r | |
1053 | \r | |
1054 | /**\r | |
1055 | Find out whether the response is valid or invalid.\r | |
1056 | \r | |
f75a7f56 LG |
1057 | @param TokensMap All DNS transmittal Tokens entry.\r |
1058 | @param Identification Identification for queried packet.\r | |
99c048ef | 1059 | @param Type Type for queried packet.\r |
3900a743 | 1060 | @param Class Class for queried packet.\r |
99c048ef | 1061 | @param Item Return corresponding Token entry.\r |
1062 | \r | |
1063 | @retval TRUE The response is valid.\r | |
1064 | @retval FALSE The response is invalid.\r | |
f75a7f56 LG |
1065 | \r |
1066 | **/\r | |
99c048ef | 1067 | BOOLEAN\r |
1068 | IsValidDnsResponse (\r | |
d1050b9d MK |
1069 | IN NET_MAP *TokensMap,\r |
1070 | IN UINT16 Identification,\r | |
1071 | IN UINT16 Type,\r | |
1072 | IN UINT16 Class,\r | |
1073 | OUT NET_MAP_ITEM **Item\r | |
99c048ef | 1074 | )\r |
1075 | {\r | |
d1050b9d | 1076 | LIST_ENTRY *Entry;\r |
99c048ef | 1077 | \r |
d1050b9d MK |
1078 | NET_BUF *Packet;\r |
1079 | UINT8 *TxString;\r | |
1080 | DNS_HEADER *DnsHeader;\r | |
1081 | CHAR8 *QueryName;\r | |
1082 | DNS_QUERY_SECTION *QuerySection;\r | |
99c048ef | 1083 | \r |
1084 | NET_LIST_FOR_EACH (Entry, &TokensMap->Used) {\r | |
d1050b9d MK |
1085 | *Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r |
1086 | Packet = (NET_BUF *)((*Item)->Value);\r | |
4ad1bd63 | 1087 | if (Packet == NULL) {\r |
99c048ef | 1088 | continue;\r |
1089 | } else {\r | |
1090 | TxString = NetbufGetByte (Packet, 0, NULL);\r | |
3fd7bd08 | 1091 | ASSERT (TxString != NULL);\r |
d1050b9d MK |
1092 | DnsHeader = (DNS_HEADER *)TxString;\r |
1093 | QueryName = (CHAR8 *)(TxString + sizeof (*DnsHeader));\r | |
1094 | QuerySection = (DNS_QUERY_SECTION *)(QueryName + AsciiStrLen (QueryName) + 1);\r | |
1095 | \r | |
1096 | if ((NTOHS (DnsHeader->Identification) == Identification) &&\r | |
1097 | (NTOHS (QuerySection->Type) == Type) &&\r | |
1098 | (NTOHS (QuerySection->Class) == Class))\r | |
1099 | {\r | |
99c048ef | 1100 | return TRUE;\r |
1101 | }\r | |
f75a7f56 | 1102 | }\r |
99c048ef | 1103 | }\r |
f75a7f56 | 1104 | \r |
3900a743 | 1105 | *Item = NULL;\r |
f75a7f56 | 1106 | \r |
99c048ef | 1107 | return FALSE;\r |
1108 | }\r | |
1109 | \r | |
1110 | /**\r | |
1111 | Parse Dns Response.\r | |
1112 | \r | |
1113 | @param Instance The DNS instance\r | |
1114 | @param RxString Received buffer.\r | |
84110bbe | 1115 | @param Length Received buffer length.\r |
f75a7f56 LG |
1116 | @param Completed Flag to indicate that Dns response is valid.\r |
1117 | \r | |
99c048ef | 1118 | @retval EFI_SUCCESS Parse Dns Response successfully.\r |
1119 | @retval Others Failed to parse Dns Response.\r | |
f75a7f56 LG |
1120 | \r |
1121 | **/\r | |
99c048ef | 1122 | EFI_STATUS\r |
1123 | ParseDnsResponse (\r | |
d1050b9d MK |
1124 | IN OUT DNS_INSTANCE *Instance,\r |
1125 | IN UINT8 *RxString,\r | |
1126 | IN UINT32 Length,\r | |
1127 | OUT BOOLEAN *Completed\r | |
99c048ef | 1128 | )\r |
1129 | {\r | |
d1050b9d | 1130 | DNS_HEADER *DnsHeader;\r |
f75a7f56 | 1131 | \r |
d1050b9d MK |
1132 | CHAR8 *QueryName;\r |
1133 | UINT32 QueryNameLen;\r | |
1134 | DNS_QUERY_SECTION *QuerySection;\r | |
f75a7f56 | 1135 | \r |
d1050b9d MK |
1136 | CHAR8 *AnswerName;\r |
1137 | DNS_ANSWER_SECTION *AnswerSection;\r | |
1138 | UINT8 *AnswerData;\r | |
99c048ef | 1139 | \r |
d1050b9d MK |
1140 | NET_MAP_ITEM *Item;\r |
1141 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
1142 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
f75a7f56 | 1143 | \r |
d1050b9d MK |
1144 | UINT32 IpCount;\r |
1145 | UINT32 RRCount;\r | |
1146 | UINT32 AnswerSectionNum;\r | |
1147 | UINT32 CNameTtl;\r | |
f75a7f56 | 1148 | \r |
d1050b9d MK |
1149 | EFI_IPv4_ADDRESS *HostAddr4;\r |
1150 | EFI_IPv6_ADDRESS *HostAddr6;\r | |
99c048ef | 1151 | \r |
1152 | EFI_DNS4_CACHE_ENTRY *Dns4CacheEntry;\r | |
1153 | EFI_DNS6_CACHE_ENTRY *Dns6CacheEntry;\r | |
1154 | \r | |
fcae1a99 JW |
1155 | DNS_RESOURCE_RECORD *Dns4RR;\r |
1156 | DNS6_RESOURCE_RECORD *Dns6RR;\r | |
1157 | \r | |
d1050b9d MK |
1158 | EFI_STATUS Status;\r |
1159 | UINT32 RemainingLength;\r | |
99c048ef | 1160 | \r |
d1050b9d | 1161 | EFI_TPL OldTpl;\r |
f75a7f56 | 1162 | \r |
d1050b9d MK |
1163 | Item = NULL;\r |
1164 | Dns4TokenEntry = NULL;\r | |
1165 | Dns6TokenEntry = NULL;\r | |
f75a7f56 | 1166 | \r |
99c048ef | 1167 | IpCount = 0;\r |
fcae1a99 | 1168 | RRCount = 0;\r |
99c048ef | 1169 | AnswerSectionNum = 0;\r |
3093f45c | 1170 | CNameTtl = 0;\r |
f75a7f56 | 1171 | \r |
d1050b9d MK |
1172 | HostAddr4 = NULL;\r |
1173 | HostAddr6 = NULL;\r | |
f75a7f56 | 1174 | \r |
d1050b9d MK |
1175 | Dns4CacheEntry = NULL;\r |
1176 | Dns6CacheEntry = NULL;\r | |
f75a7f56 | 1177 | \r |
d1050b9d MK |
1178 | Dns4RR = NULL;\r |
1179 | Dns6RR = NULL;\r | |
99c048ef | 1180 | \r |
d1050b9d MK |
1181 | *Completed = TRUE;\r |
1182 | Status = EFI_SUCCESS;\r | |
1183 | RemainingLength = Length;\r | |
84110bbe JW |
1184 | \r |
1185 | //\r | |
0d622d9c | 1186 | // Check whether the remaining packet length is available or not.\r |
84110bbe JW |
1187 | //\r |
1188 | if (RemainingLength <= sizeof (DNS_HEADER)) {\r | |
1189 | *Completed = FALSE;\r | |
1190 | return EFI_ABORTED;\r | |
1191 | } else {\r | |
1192 | RemainingLength -= sizeof (DNS_HEADER);\r | |
1193 | }\r | |
f75a7f56 | 1194 | \r |
99c048ef | 1195 | //\r |
1196 | // Get header\r | |
1197 | //\r | |
d1050b9d | 1198 | DnsHeader = (DNS_HEADER *)RxString;\r |
f75a7f56 | 1199 | \r |
99c048ef | 1200 | DnsHeader->Identification = NTOHS (DnsHeader->Identification);\r |
d1050b9d MK |
1201 | DnsHeader->Flags.Uint16 = NTOHS (DnsHeader->Flags.Uint16);\r |
1202 | DnsHeader->QuestionsNum = NTOHS (DnsHeader->QuestionsNum);\r | |
1203 | DnsHeader->AnswersNum = NTOHS (DnsHeader->AnswersNum);\r | |
1204 | DnsHeader->AuthorityNum = NTOHS (DnsHeader->AuthorityNum);\r | |
1205 | DnsHeader->AditionalNum = NTOHS (DnsHeader->AditionalNum);\r | |
99c048ef | 1206 | \r |
84110bbe JW |
1207 | //\r |
1208 | // There is always one QuestionsNum in DNS message. The capability to handle more\r | |
1209 | // than one requires to redesign the message format. Currently, it's not supported.\r | |
1210 | //\r | |
1211 | if (DnsHeader->QuestionsNum > 1) {\r | |
1212 | *Completed = FALSE;\r | |
1213 | return EFI_UNSUPPORTED;\r | |
1214 | }\r | |
1215 | \r | |
99c048ef | 1216 | //\r |
1217 | // Get Query name\r | |
1218 | //\r | |
d1050b9d | 1219 | QueryName = (CHAR8 *)(RxString + sizeof (*DnsHeader));\r |
99c048ef | 1220 | \r |
d1050b9d | 1221 | QueryNameLen = (UINT32)AsciiStrLen (QueryName) + 1;\r |
84110bbe | 1222 | \r |
99c048ef | 1223 | //\r |
0d622d9c | 1224 | // Check whether the remaining packet length is available or not.\r |
99c048ef | 1225 | //\r |
84110bbe JW |
1226 | if (RemainingLength <= QueryNameLen + sizeof (DNS_QUERY_SECTION)) {\r |
1227 | *Completed = FALSE;\r | |
1228 | return EFI_ABORTED;\r | |
1229 | } else {\r | |
1230 | RemainingLength -= (QueryNameLen + sizeof (DNS_QUERY_SECTION));\r | |
1231 | }\r | |
99c048ef | 1232 | \r |
1233 | //\r | |
84110bbe | 1234 | // Get query section\r |
99c048ef | 1235 | //\r |
d1050b9d MK |
1236 | QuerySection = (DNS_QUERY_SECTION *)(QueryName + QueryNameLen);\r |
1237 | QuerySection->Type = NTOHS (QuerySection->Type);\r | |
84110bbe | 1238 | QuerySection->Class = NTOHS (QuerySection->Class);\r |
99c048ef | 1239 | \r |
1240 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1241 | \r | |
1242 | //\r | |
1243 | // Check DnsResponse Validity, if so, also get a valid NET_MAP_ITEM.\r | |
1244 | //\r | |
1245 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r | |
3900a743 | 1246 | if (!IsValidDnsResponse (\r |
f75a7f56 LG |
1247 | &Instance->Dns4TxTokens,\r |
1248 | DnsHeader->Identification,\r | |
3900a743 JW |
1249 | QuerySection->Type,\r |
1250 | QuerySection->Class,\r | |
1251 | &Item\r | |
d1050b9d MK |
1252 | ))\r |
1253 | {\r | |
99c048ef | 1254 | *Completed = FALSE;\r |
d1050b9d | 1255 | Status = EFI_ABORTED;\r |
99c048ef | 1256 | goto ON_EXIT;\r |
1257 | }\r | |
d1050b9d | 1258 | \r |
99c048ef | 1259 | ASSERT (Item != NULL);\r |
d1050b9d | 1260 | Dns4TokenEntry = (DNS4_TOKEN_ENTRY *)(Item->Key);\r |
99c048ef | 1261 | } else {\r |
3900a743 | 1262 | if (!IsValidDnsResponse (\r |
f75a7f56 LG |
1263 | &Instance->Dns6TxTokens,\r |
1264 | DnsHeader->Identification,\r | |
3900a743 JW |
1265 | QuerySection->Type,\r |
1266 | QuerySection->Class,\r | |
1267 | &Item\r | |
d1050b9d MK |
1268 | ))\r |
1269 | {\r | |
99c048ef | 1270 | *Completed = FALSE;\r |
d1050b9d | 1271 | Status = EFI_ABORTED;\r |
99c048ef | 1272 | goto ON_EXIT;\r |
1273 | }\r | |
d1050b9d | 1274 | \r |
99c048ef | 1275 | ASSERT (Item != NULL);\r |
d1050b9d | 1276 | Dns6TokenEntry = (DNS6_TOKEN_ENTRY *)(Item->Key);\r |
99c048ef | 1277 | }\r |
f75a7f56 | 1278 | \r |
99c048ef | 1279 | //\r |
1280 | // Continue Check Some Errors.\r | |
1281 | //\r | |
d1050b9d MK |
1282 | if ((DnsHeader->Flags.Bits.RCode != DNS_FLAGS_RCODE_NO_ERROR) || (DnsHeader->AnswersNum < 1) || \\r |
1283 | (DnsHeader->Flags.Bits.QR != DNS_FLAGS_QR_RESPONSE))\r | |
1284 | {\r | |
0a92ac88 JW |
1285 | //\r |
1286 | // The domain name referenced in the query does not exist.\r | |
1287 | //\r | |
1288 | if (DnsHeader->Flags.Bits.RCode == DNS_FLAGS_RCODE_NAME_ERROR) {\r | |
f75a7f56 | 1289 | Status = EFI_NOT_FOUND;\r |
0a92ac88 JW |
1290 | } else {\r |
1291 | Status = EFI_DEVICE_ERROR;\r | |
1292 | }\r | |
f75a7f56 | 1293 | \r |
0a92ac88 | 1294 | goto ON_COMPLETE;\r |
99c048ef | 1295 | }\r |
f75a7f56 | 1296 | \r |
99c048ef | 1297 | //\r |
fcae1a99 | 1298 | // Do some buffer allocations.\r |
99c048ef | 1299 | //\r |
00c0c3f2 JW |
1300 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
1301 | ASSERT (Dns4TokenEntry != NULL);\r | |
fcae1a99 JW |
1302 | \r |
1303 | if (Dns4TokenEntry->GeneralLookUp) {\r | |
1304 | //\r | |
1305 | // It's the GeneralLookUp querying.\r | |
1306 | //\r | |
43d7e607 | 1307 | Dns4TokenEntry->Token->RspData.GLookupData = AllocateZeroPool (sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 JW |
1308 | if (Dns4TokenEntry->Token->RspData.GLookupData == NULL) {\r |
1309 | Status = EFI_OUT_OF_RESOURCES;\r | |
1310 | goto ON_EXIT;\r | |
1311 | }\r | |
d1050b9d | 1312 | \r |
43d7e607 | 1313 | Dns4TokenEntry->Token->RspData.GLookupData->RRList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 JW |
1314 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList == NULL) {\r |
1315 | Status = EFI_OUT_OF_RESOURCES;\r | |
1316 | goto ON_EXIT;\r | |
1317 | }\r | |
00c0c3f2 | 1318 | } else {\r |
fcae1a99 JW |
1319 | //\r |
1320 | // It's not the GeneralLookUp querying. Check the Query type.\r | |
1321 | //\r | |
1322 | if (QuerySection->Type == DNS_TYPE_A) {\r | |
43d7e607 | 1323 | Dns4TokenEntry->Token->RspData.H2AData = AllocateZeroPool (sizeof (DNS_HOST_TO_ADDR_DATA));\r |
fcae1a99 JW |
1324 | if (Dns4TokenEntry->Token->RspData.H2AData == NULL) {\r |
1325 | Status = EFI_OUT_OF_RESOURCES;\r | |
1326 | goto ON_EXIT;\r | |
1327 | }\r | |
d1050b9d | 1328 | \r |
43d7e607 | 1329 | Dns4TokenEntry->Token->RspData.H2AData->IpList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (EFI_IPv4_ADDRESS));\r |
fcae1a99 JW |
1330 | if (Dns4TokenEntry->Token->RspData.H2AData->IpList == NULL) {\r |
1331 | Status = EFI_OUT_OF_RESOURCES;\r | |
1332 | goto ON_EXIT;\r | |
1333 | }\r | |
1334 | } else {\r | |
1335 | Status = EFI_UNSUPPORTED;\r | |
1336 | goto ON_EXIT;\r | |
1337 | }\r | |
00c0c3f2 | 1338 | }\r |
99c048ef | 1339 | } else {\r |
00c0c3f2 | 1340 | ASSERT (Dns6TokenEntry != NULL);\r |
fcae1a99 JW |
1341 | \r |
1342 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1343 | //\r | |
1344 | // It's the GeneralLookUp querying.\r | |
1345 | //\r | |
43d7e607 | 1346 | Dns6TokenEntry->Token->RspData.GLookupData = AllocateZeroPool (sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 | 1347 | if (Dns6TokenEntry->Token->RspData.GLookupData == NULL) {\r |
3093f45c | 1348 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1349 | goto ON_EXIT;\r |
1350 | }\r | |
d1050b9d | 1351 | \r |
43d7e607 | 1352 | Dns6TokenEntry->Token->RspData.GLookupData->RRList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (DNS_RESOURCE_RECORD));\r |
fcae1a99 | 1353 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList == NULL) {\r |
3093f45c | 1354 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1355 | goto ON_EXIT;\r |
1356 | }\r | |
00c0c3f2 | 1357 | } else {\r |
fcae1a99 JW |
1358 | //\r |
1359 | // It's not the GeneralLookUp querying. Check the Query type.\r | |
1360 | //\r | |
1361 | if (QuerySection->Type == DNS_TYPE_AAAA) {\r | |
43d7e607 | 1362 | Dns6TokenEntry->Token->RspData.H2AData = AllocateZeroPool (sizeof (DNS6_HOST_TO_ADDR_DATA));\r |
fcae1a99 | 1363 | if (Dns6TokenEntry->Token->RspData.H2AData == NULL) {\r |
3093f45c | 1364 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1365 | goto ON_EXIT;\r |
1366 | }\r | |
d1050b9d | 1367 | \r |
43d7e607 | 1368 | Dns6TokenEntry->Token->RspData.H2AData->IpList = AllocateZeroPool (DnsHeader->AnswersNum * sizeof (EFI_IPv6_ADDRESS));\r |
fcae1a99 | 1369 | if (Dns6TokenEntry->Token->RspData.H2AData->IpList == NULL) {\r |
3093f45c | 1370 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1371 | goto ON_EXIT;\r |
1372 | }\r | |
1373 | } else {\r | |
1374 | Status = EFI_UNSUPPORTED;\r | |
1375 | goto ON_EXIT;\r | |
1376 | }\r | |
00c0c3f2 | 1377 | }\r |
99c048ef | 1378 | }\r |
1379 | \r | |
3093f45c JW |
1380 | Status = EFI_NOT_FOUND;\r |
1381 | \r | |
84110bbe JW |
1382 | //\r |
1383 | // Get Answer name\r | |
1384 | //\r | |
d1050b9d | 1385 | AnswerName = (CHAR8 *)QuerySection + sizeof (*QuerySection);\r |
84110bbe | 1386 | \r |
99c048ef | 1387 | //\r |
1388 | // Processing AnswerSection.\r | |
1389 | //\r | |
1390 | while (AnswerSectionNum < DnsHeader->AnswersNum) {\r | |
84110bbe | 1391 | //\r |
0d622d9c | 1392 | // Check whether the remaining packet length is available or not.\r |
84110bbe JW |
1393 | //\r |
1394 | if (RemainingLength <= sizeof (UINT16) + sizeof (DNS_ANSWER_SECTION)) {\r | |
1395 | *Completed = FALSE;\r | |
d1050b9d | 1396 | Status = EFI_ABORTED;\r |
84110bbe JW |
1397 | goto ON_EXIT;\r |
1398 | } else {\r | |
1399 | RemainingLength -= (sizeof (UINT16) + sizeof (DNS_ANSWER_SECTION));\r | |
1400 | }\r | |
1401 | \r | |
99c048ef | 1402 | //\r |
0e5e7996 | 1403 | // Answer name should be PTR, else EFI_UNSUPPORTED returned.\r |
99c048ef | 1404 | //\r |
d1050b9d | 1405 | if ((*(UINT8 *)AnswerName & 0xC0) != 0xC0) {\r |
0e5e7996 JW |
1406 | Status = EFI_UNSUPPORTED;\r |
1407 | goto ON_EXIT;\r | |
1408 | }\r | |
f75a7f56 | 1409 | \r |
99c048ef | 1410 | //\r |
1411 | // Get Answer section.\r | |
1412 | //\r | |
d1050b9d MK |
1413 | AnswerSection = (DNS_ANSWER_SECTION *)(AnswerName + sizeof (UINT16));\r |
1414 | AnswerSection->Type = NTOHS (AnswerSection->Type);\r | |
1415 | AnswerSection->Class = NTOHS (AnswerSection->Class);\r | |
1416 | AnswerSection->Ttl = NTOHL (AnswerSection->Ttl);\r | |
99c048ef | 1417 | AnswerSection->DataLength = NTOHS (AnswerSection->DataLength);\r |
1418 | \r | |
84110bbe | 1419 | //\r |
0d622d9c | 1420 | // Check whether the remaining packet length is available or not.\r |
84110bbe JW |
1421 | //\r |
1422 | if (RemainingLength < AnswerSection->DataLength) {\r | |
1423 | *Completed = FALSE;\r | |
d1050b9d | 1424 | Status = EFI_ABORTED;\r |
84110bbe JW |
1425 | goto ON_EXIT;\r |
1426 | } else {\r | |
1427 | RemainingLength -= AnswerSection->DataLength;\r | |
1428 | }\r | |
1429 | \r | |
fcae1a99 JW |
1430 | //\r |
1431 | // Check whether it's the GeneralLookUp querying.\r | |
1432 | //\r | |
d1050b9d MK |
1433 | if ((Instance->Service->IpVersion == IP_VERSION_4) && Dns4TokenEntry->GeneralLookUp) {\r |
1434 | Dns4RR = Dns4TokenEntry->Token->RspData.GLookupData->RRList;\r | |
1435 | AnswerData = (UINT8 *)AnswerSection + sizeof (*AnswerSection);\r | |
fcae1a99 JW |
1436 | \r |
1437 | //\r | |
1438 | // Fill the ResourceRecord.\r | |
1439 | //\r | |
1440 | Dns4RR[RRCount].QName = AllocateZeroPool (AsciiStrLen (QueryName) + 1);\r | |
1441 | if (Dns4RR[RRCount].QName == NULL) {\r | |
3093f45c | 1442 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1443 | goto ON_EXIT;\r |
1444 | }\r | |
d1050b9d | 1445 | \r |
fcae1a99 | 1446 | CopyMem (Dns4RR[RRCount].QName, QueryName, AsciiStrLen (QueryName));\r |
d1050b9d MK |
1447 | Dns4RR[RRCount].QType = AnswerSection->Type;\r |
1448 | Dns4RR[RRCount].QClass = AnswerSection->Class;\r | |
1449 | Dns4RR[RRCount].TTL = AnswerSection->Ttl;\r | |
fcae1a99 | 1450 | Dns4RR[RRCount].DataLength = AnswerSection->DataLength;\r |
d1050b9d | 1451 | Dns4RR[RRCount].RData = AllocateZeroPool (Dns4RR[RRCount].DataLength);\r |
fcae1a99 | 1452 | if (Dns4RR[RRCount].RData == NULL) {\r |
3093f45c | 1453 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1454 | goto ON_EXIT;\r |
1455 | }\r | |
d1050b9d | 1456 | \r |
fcae1a99 | 1457 | CopyMem (Dns4RR[RRCount].RData, AnswerData, Dns4RR[RRCount].DataLength);\r |
f75a7f56 | 1458 | \r |
d1050b9d | 1459 | RRCount++;\r |
3093f45c | 1460 | Status = EFI_SUCCESS;\r |
d1050b9d MK |
1461 | } else if ((Instance->Service->IpVersion == IP_VERSION_6) && Dns6TokenEntry->GeneralLookUp) {\r |
1462 | Dns6RR = Dns6TokenEntry->Token->RspData.GLookupData->RRList;\r | |
1463 | AnswerData = (UINT8 *)AnswerSection + sizeof (*AnswerSection);\r | |
99c048ef | 1464 | \r |
fcae1a99 JW |
1465 | //\r |
1466 | // Fill the ResourceRecord.\r | |
1467 | //\r | |
1468 | Dns6RR[RRCount].QName = AllocateZeroPool (AsciiStrLen (QueryName) + 1);\r | |
1469 | if (Dns6RR[RRCount].QName == NULL) {\r | |
3093f45c | 1470 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1471 | goto ON_EXIT;\r |
1472 | }\r | |
d1050b9d | 1473 | \r |
fcae1a99 | 1474 | CopyMem (Dns6RR[RRCount].QName, QueryName, AsciiStrLen (QueryName));\r |
d1050b9d MK |
1475 | Dns6RR[RRCount].QType = AnswerSection->Type;\r |
1476 | Dns6RR[RRCount].QClass = AnswerSection->Class;\r | |
1477 | Dns6RR[RRCount].TTL = AnswerSection->Ttl;\r | |
fcae1a99 | 1478 | Dns6RR[RRCount].DataLength = AnswerSection->DataLength;\r |
d1050b9d | 1479 | Dns6RR[RRCount].RData = AllocateZeroPool (Dns6RR[RRCount].DataLength);\r |
fcae1a99 | 1480 | if (Dns6RR[RRCount].RData == NULL) {\r |
3093f45c | 1481 | Status = EFI_OUT_OF_RESOURCES;\r |
fcae1a99 JW |
1482 | goto ON_EXIT;\r |
1483 | }\r | |
d1050b9d | 1484 | \r |
fcae1a99 | 1485 | CopyMem (Dns6RR[RRCount].RData, AnswerData, Dns6RR[RRCount].DataLength);\r |
f75a7f56 | 1486 | \r |
d1050b9d | 1487 | RRCount++;\r |
3093f45c | 1488 | Status = EFI_SUCCESS;\r |
fcae1a99 JW |
1489 | } else {\r |
1490 | //\r | |
f75a7f56 | 1491 | // It's not the GeneralLookUp querying.\r |
fcae1a99 JW |
1492 | // Check the Query type, parse the response packet.\r |
1493 | //\r | |
99c048ef | 1494 | switch (AnswerSection->Type) {\r |
d1050b9d MK |
1495 | case DNS_TYPE_A:\r |
1496 | //\r | |
1497 | // This is address entry, get Data.\r | |
1498 | //\r | |
1499 | ASSERT (Dns4TokenEntry != NULL);\r | |
0e5e7996 | 1500 | \r |
d1050b9d MK |
1501 | if (AnswerSection->DataLength != 4) {\r |
1502 | Status = EFI_ABORTED;\r | |
1503 | goto ON_EXIT;\r | |
1504 | }\r | |
f75a7f56 | 1505 | \r |
d1050b9d MK |
1506 | HostAddr4 = Dns4TokenEntry->Token->RspData.H2AData->IpList;\r |
1507 | AnswerData = (UINT8 *)AnswerSection + sizeof (*AnswerSection);\r | |
1508 | CopyMem (&HostAddr4[IpCount], AnswerData, sizeof (EFI_IPv4_ADDRESS));\r | |
99c048ef | 1509 | \r |
d1050b9d MK |
1510 | //\r |
1511 | // Allocate new CacheEntry pool to update DNS cache dynamically.\r | |
1512 | //\r | |
1513 | Dns4CacheEntry = AllocateZeroPool (sizeof (EFI_DNS4_CACHE_ENTRY));\r | |
1514 | if (Dns4CacheEntry == NULL) {\r | |
1515 | Status = EFI_OUT_OF_RESOURCES;\r | |
1516 | goto ON_EXIT;\r | |
1517 | }\r | |
3093f45c | 1518 | \r |
d1050b9d MK |
1519 | Dns4CacheEntry->HostName = AllocateZeroPool (2 * (StrLen (Dns4TokenEntry->QueryHostName) + 1));\r |
1520 | if (Dns4CacheEntry->HostName == NULL) {\r | |
1521 | Status = EFI_OUT_OF_RESOURCES;\r | |
1522 | goto ON_EXIT;\r | |
1523 | }\r | |
f75a7f56 | 1524 | \r |
d1050b9d MK |
1525 | CopyMem (Dns4CacheEntry->HostName, Dns4TokenEntry->QueryHostName, 2 * (StrLen (Dns4TokenEntry->QueryHostName) + 1));\r |
1526 | Dns4CacheEntry->IpAddress = AllocateZeroPool (sizeof (EFI_IPv4_ADDRESS));\r | |
1527 | if (Dns4CacheEntry->IpAddress == NULL) {\r | |
1528 | Status = EFI_OUT_OF_RESOURCES;\r | |
1529 | goto ON_EXIT;\r | |
1530 | }\r | |
0a92ac88 | 1531 | \r |
d1050b9d | 1532 | CopyMem (Dns4CacheEntry->IpAddress, AnswerData, sizeof (EFI_IPv4_ADDRESS));\r |
f75a7f56 | 1533 | \r |
d1050b9d MK |
1534 | if ((CNameTtl != 0) && (AnswerSection->Ttl != 0)) {\r |
1535 | Dns4CacheEntry->Timeout = MIN (CNameTtl, AnswerSection->Ttl);\r | |
1536 | } else {\r | |
1537 | Dns4CacheEntry->Timeout = MAX (CNameTtl, AnswerSection->Ttl);\r | |
1538 | }\r | |
0a92ac88 | 1539 | \r |
d1050b9d | 1540 | UpdateDns4Cache (&mDriverData->Dns4CacheList, FALSE, TRUE, *Dns4CacheEntry);\r |
99c048ef | 1541 | \r |
d1050b9d MK |
1542 | //\r |
1543 | // Free allocated CacheEntry pool.\r | |
1544 | //\r | |
1545 | FreePool (Dns4CacheEntry->HostName);\r | |
1546 | Dns4CacheEntry->HostName = NULL;\r | |
0e5e7996 | 1547 | \r |
d1050b9d MK |
1548 | FreePool (Dns4CacheEntry->IpAddress);\r |
1549 | Dns4CacheEntry->IpAddress = NULL;\r | |
f75a7f56 | 1550 | \r |
d1050b9d MK |
1551 | FreePool (Dns4CacheEntry);\r |
1552 | Dns4CacheEntry = NULL;\r | |
99c048ef | 1553 | \r |
d1050b9d MK |
1554 | IpCount++;\r |
1555 | Status = EFI_SUCCESS;\r | |
1556 | break;\r | |
1557 | case DNS_TYPE_AAAA:\r | |
1558 | //\r | |
1559 | // This is address entry, get Data.\r | |
1560 | //\r | |
1561 | ASSERT (Dns6TokenEntry != NULL);\r | |
3093f45c | 1562 | \r |
d1050b9d MK |
1563 | if (AnswerSection->DataLength != 16) {\r |
1564 | Status = EFI_ABORTED;\r | |
1565 | goto ON_EXIT;\r | |
1566 | }\r | |
f75a7f56 | 1567 | \r |
d1050b9d MK |
1568 | HostAddr6 = Dns6TokenEntry->Token->RspData.H2AData->IpList;\r |
1569 | AnswerData = (UINT8 *)AnswerSection + sizeof (*AnswerSection);\r | |
1570 | CopyMem (&HostAddr6[IpCount], AnswerData, sizeof (EFI_IPv6_ADDRESS));\r | |
0a92ac88 | 1571 | \r |
d1050b9d MK |
1572 | //\r |
1573 | // Allocate new CacheEntry pool to update DNS cache dynamically.\r | |
1574 | //\r | |
1575 | Dns6CacheEntry = AllocateZeroPool (sizeof (EFI_DNS6_CACHE_ENTRY));\r | |
1576 | if (Dns6CacheEntry == NULL) {\r | |
1577 | Status = EFI_OUT_OF_RESOURCES;\r | |
1578 | goto ON_EXIT;\r | |
1579 | }\r | |
f75a7f56 | 1580 | \r |
d1050b9d MK |
1581 | Dns6CacheEntry->HostName = AllocateZeroPool (2 * (StrLen (Dns6TokenEntry->QueryHostName) + 1));\r |
1582 | if (Dns6CacheEntry->HostName == NULL) {\r | |
1583 | Status = EFI_OUT_OF_RESOURCES;\r | |
1584 | goto ON_EXIT;\r | |
1585 | }\r | |
0a92ac88 | 1586 | \r |
d1050b9d MK |
1587 | CopyMem (Dns6CacheEntry->HostName, Dns6TokenEntry->QueryHostName, 2 * (StrLen (Dns6TokenEntry->QueryHostName) + 1));\r |
1588 | Dns6CacheEntry->IpAddress = AllocateZeroPool (sizeof (EFI_IPv6_ADDRESS));\r | |
1589 | if (Dns6CacheEntry->IpAddress == NULL) {\r | |
1590 | Status = EFI_OUT_OF_RESOURCES;\r | |
1591 | goto ON_EXIT;\r | |
1592 | }\r | |
f75a7f56 | 1593 | \r |
d1050b9d MK |
1594 | CopyMem (Dns6CacheEntry->IpAddress, AnswerData, sizeof (EFI_IPv6_ADDRESS));\r |
1595 | \r | |
1596 | if ((CNameTtl != 0) && (AnswerSection->Ttl != 0)) {\r | |
1597 | Dns6CacheEntry->Timeout = MIN (CNameTtl, AnswerSection->Ttl);\r | |
1598 | } else {\r | |
1599 | Dns6CacheEntry->Timeout = MAX (CNameTtl, AnswerSection->Ttl);\r | |
1600 | }\r | |
1601 | \r | |
1602 | UpdateDns6Cache (&mDriverData->Dns6CacheList, FALSE, TRUE, *Dns6CacheEntry);\r | |
1603 | \r | |
1604 | //\r | |
1605 | // Free allocated CacheEntry pool.\r | |
1606 | //\r | |
1607 | FreePool (Dns6CacheEntry->HostName);\r | |
1608 | Dns6CacheEntry->HostName = NULL;\r | |
1609 | \r | |
1610 | FreePool (Dns6CacheEntry->IpAddress);\r | |
1611 | Dns6CacheEntry->IpAddress = NULL;\r | |
1612 | \r | |
1613 | FreePool (Dns6CacheEntry);\r | |
1614 | Dns6CacheEntry = NULL;\r | |
1615 | \r | |
1616 | IpCount++;\r | |
1617 | Status = EFI_SUCCESS;\r | |
1618 | break;\r | |
1619 | case DNS_TYPE_CNAME:\r | |
1620 | //\r | |
1621 | // According RFC 1034 - 3.6.2, if the query name is an alias, the name server will include the CNAME\r | |
1622 | // record in the response and restart the query at the domain name specified in the data field of the\r | |
1623 | // CNAME record. So, just record the TTL value of the CNAME, then skip to parse the next record.\r | |
1624 | //\r | |
1625 | CNameTtl = AnswerSection->Ttl;\r | |
1626 | break;\r | |
1627 | default:\r | |
1628 | Status = EFI_UNSUPPORTED;\r | |
1629 | goto ON_EXIT;\r | |
99c048ef | 1630 | }\r |
1631 | }\r | |
f75a7f56 | 1632 | \r |
99c048ef | 1633 | //\r |
1634 | // Find next one\r | |
1635 | //\r | |
d1050b9d MK |
1636 | AnswerName = (CHAR8 *)AnswerSection + sizeof (*AnswerSection) + AnswerSection->DataLength;\r |
1637 | AnswerSectionNum++;\r | |
99c048ef | 1638 | }\r |
1639 | \r | |
00c0c3f2 JW |
1640 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
1641 | ASSERT (Dns4TokenEntry != NULL);\r | |
f75a7f56 | 1642 | \r |
fcae1a99 JW |
1643 | if (Dns4TokenEntry->GeneralLookUp) {\r |
1644 | Dns4TokenEntry->Token->RspData.GLookupData->RRCount = RRCount;\r | |
00c0c3f2 | 1645 | } else {\r |
fcae1a99 JW |
1646 | if (QuerySection->Type == DNS_TYPE_A) {\r |
1647 | Dns4TokenEntry->Token->RspData.H2AData->IpCount = IpCount;\r | |
1648 | } else {\r | |
1649 | Status = EFI_UNSUPPORTED;\r | |
1650 | goto ON_EXIT;\r | |
1651 | }\r | |
00c0c3f2 JW |
1652 | }\r |
1653 | } else {\r | |
1654 | ASSERT (Dns6TokenEntry != NULL);\r | |
fcae1a99 JW |
1655 | \r |
1656 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1657 | Dns6TokenEntry->Token->RspData.GLookupData->RRCount = RRCount;\r | |
00c0c3f2 | 1658 | } else {\r |
fcae1a99 JW |
1659 | if (QuerySection->Type == DNS_TYPE_AAAA) {\r |
1660 | Dns6TokenEntry->Token->RspData.H2AData->IpCount = IpCount;\r | |
1661 | } else {\r | |
1662 | Status = EFI_UNSUPPORTED;\r | |
1663 | goto ON_EXIT;\r | |
1664 | }\r | |
00c0c3f2 | 1665 | }\r |
99c048ef | 1666 | }\r |
f75a7f56 | 1667 | \r |
0a92ac88 | 1668 | ON_COMPLETE:\r |
99c048ef | 1669 | //\r |
3093f45c | 1670 | // Parsing is complete, free the sending packet and signal Event here.\r |
99c048ef | 1671 | //\r |
d1050b9d MK |
1672 | if ((Item != NULL) && (Item->Value != NULL)) {\r |
1673 | NetbufFree ((NET_BUF *)(Item->Value));\r | |
3093f45c | 1674 | }\r |
f75a7f56 | 1675 | \r |
99c048ef | 1676 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r |
00c0c3f2 | 1677 | ASSERT (Dns4TokenEntry != NULL);\r |
99c048ef | 1678 | Dns4RemoveTokenEntry (&Instance->Dns4TxTokens, Dns4TokenEntry);\r |
3093f45c | 1679 | Dns4TokenEntry->Token->Status = Status;\r |
99c048ef | 1680 | if (Dns4TokenEntry->Token->Event != NULL) {\r |
1681 | gBS->SignalEvent (Dns4TokenEntry->Token->Event);\r | |
1682 | DispatchDpc ();\r | |
1683 | }\r | |
1684 | } else {\r | |
00c0c3f2 | 1685 | ASSERT (Dns6TokenEntry != NULL);\r |
99c048ef | 1686 | Dns6RemoveTokenEntry (&Instance->Dns6TxTokens, Dns6TokenEntry);\r |
3093f45c | 1687 | Dns6TokenEntry->Token->Status = Status;\r |
99c048ef | 1688 | if (Dns6TokenEntry->Token->Event != NULL) {\r |
1689 | gBS->SignalEvent (Dns6TokenEntry->Token->Event);\r | |
1690 | DispatchDpc ();\r | |
1691 | }\r | |
1692 | }\r | |
1693 | \r | |
99c048ef | 1694 | ON_EXIT:\r |
43d7e607 JW |
1695 | //\r |
1696 | // Free the allocated buffer if error happen.\r | |
1697 | //\r | |
1698 | if (EFI_ERROR (Status)) {\r | |
1699 | if (Dns4TokenEntry != NULL) {\r | |
1700 | if (Dns4TokenEntry->GeneralLookUp) {\r | |
1701 | if (Dns4TokenEntry->Token->RspData.GLookupData != NULL) {\r | |
1702 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList != NULL) {\r | |
1703 | while (RRCount != 0) {\r | |
d1050b9d | 1704 | RRCount--;\r |
43d7e607 JW |
1705 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName != NULL) {\r |
1706 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName);\r | |
1707 | }\r | |
1708 | \r | |
1709 | if (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData != NULL) {\r | |
1710 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData);\r | |
1711 | }\r | |
1712 | }\r | |
f75a7f56 | 1713 | \r |
43d7e607 JW |
1714 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData->RRList);\r |
1715 | }\r | |
f75a7f56 | 1716 | \r |
43d7e607 JW |
1717 | FreePool (Dns4TokenEntry->Token->RspData.GLookupData);\r |
1718 | }\r | |
1719 | } else {\r | |
d1050b9d | 1720 | if ((QuerySection->Type == DNS_TYPE_A) && (Dns4TokenEntry->Token->RspData.H2AData != NULL)) {\r |
43d7e607 JW |
1721 | if (Dns4TokenEntry->Token->RspData.H2AData->IpList != NULL) {\r |
1722 | FreePool (Dns4TokenEntry->Token->RspData.H2AData->IpList);\r | |
1723 | }\r | |
f75a7f56 | 1724 | \r |
43d7e607 | 1725 | FreePool (Dns4TokenEntry->Token->RspData.H2AData);\r |
bb1bba3d | 1726 | Dns4TokenEntry->Token->RspData.H2AData = NULL;\r |
43d7e607 JW |
1727 | }\r |
1728 | }\r | |
1729 | }\r | |
1730 | \r | |
1731 | if (Dns6TokenEntry != NULL) {\r | |
1732 | if (Dns6TokenEntry->GeneralLookUp) {\r | |
1733 | if (Dns6TokenEntry->Token->RspData.GLookupData != NULL) {\r | |
1734 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList != NULL) {\r | |
1735 | while (RRCount != 0) {\r | |
d1050b9d | 1736 | RRCount--;\r |
43d7e607 JW |
1737 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName != NULL) {\r |
1738 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].QName);\r | |
1739 | }\r | |
1740 | \r | |
1741 | if (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData != NULL) {\r | |
1742 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList[RRCount].RData);\r | |
1743 | }\r | |
1744 | }\r | |
f75a7f56 | 1745 | \r |
43d7e607 JW |
1746 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData->RRList);\r |
1747 | }\r | |
f75a7f56 | 1748 | \r |
43d7e607 JW |
1749 | FreePool (Dns6TokenEntry->Token->RspData.GLookupData);\r |
1750 | }\r | |
1751 | } else {\r | |
d1050b9d | 1752 | if ((QuerySection->Type == DNS_TYPE_AAAA) && (Dns6TokenEntry->Token->RspData.H2AData != NULL)) {\r |
43d7e607 JW |
1753 | if (Dns6TokenEntry->Token->RspData.H2AData->IpList != NULL) {\r |
1754 | FreePool (Dns6TokenEntry->Token->RspData.H2AData->IpList);\r | |
1755 | }\r | |
f75a7f56 | 1756 | \r |
43d7e607 | 1757 | FreePool (Dns6TokenEntry->Token->RspData.H2AData);\r |
bb1bba3d | 1758 | Dns6TokenEntry->Token->RspData.H2AData = NULL;\r |
43d7e607 JW |
1759 | }\r |
1760 | }\r | |
1761 | }\r | |
1762 | \r | |
1763 | if (Dns4CacheEntry != NULL) {\r | |
1764 | if (Dns4CacheEntry->HostName != NULL) {\r | |
1765 | FreePool (Dns4CacheEntry->HostName);\r | |
1766 | }\r | |
1767 | \r | |
1768 | if (Dns4CacheEntry->IpAddress != NULL) {\r | |
1769 | FreePool (Dns4CacheEntry->IpAddress);\r | |
1770 | }\r | |
1771 | \r | |
1772 | FreePool (Dns4CacheEntry);\r | |
1773 | }\r | |
1774 | \r | |
1775 | if (Dns6CacheEntry != NULL) {\r | |
1776 | if (Dns6CacheEntry->HostName != NULL) {\r | |
1777 | FreePool (Dns6CacheEntry->HostName);\r | |
1778 | }\r | |
1779 | \r | |
1780 | if (Dns6CacheEntry->IpAddress != NULL) {\r | |
1781 | FreePool (Dns6CacheEntry->IpAddress);\r | |
1782 | }\r | |
1783 | \r | |
1784 | FreePool (Dns6CacheEntry);\r | |
f75a7f56 | 1785 | }\r |
43d7e607 | 1786 | }\r |
f75a7f56 | 1787 | \r |
99c048ef | 1788 | gBS->RestoreTPL (OldTpl);\r |
1789 | return Status;\r | |
1790 | }\r | |
1791 | \r | |
1792 | /**\r | |
1793 | Parse response packet.\r | |
1794 | \r | |
1795 | @param Packet The packets received.\r | |
1796 | @param EndPoint The local/remote UDP access point\r | |
1797 | @param IoStatus The status of the UDP receive\r | |
1798 | @param Context The opaque parameter to the function.\r | |
1799 | \r | |
f75a7f56 | 1800 | **/\r |
99c048ef | 1801 | VOID\r |
1802 | EFIAPI\r | |
1803 | DnsOnPacketReceived (\r | |
d1050b9d MK |
1804 | NET_BUF *Packet,\r |
1805 | UDP_END_POINT *EndPoint,\r | |
1806 | EFI_STATUS IoStatus,\r | |
1807 | VOID *Context\r | |
99c048ef | 1808 | )\r |
1809 | {\r | |
d1050b9d | 1810 | DNS_INSTANCE *Instance;\r |
99c048ef | 1811 | \r |
d1050b9d MK |
1812 | UINT8 *RcvString;\r |
1813 | UINT32 Len;\r | |
99c048ef | 1814 | \r |
d1050b9d | 1815 | BOOLEAN Completed;\r |
f75a7f56 | 1816 | \r |
d1050b9d | 1817 | Instance = (DNS_INSTANCE *)Context;\r |
99c048ef | 1818 | NET_CHECK_SIGNATURE (Instance, DNS_INSTANCE_SIGNATURE);\r |
1819 | \r | |
1820 | RcvString = NULL;\r | |
1821 | Completed = FALSE;\r | |
1822 | \r | |
1823 | if (EFI_ERROR (IoStatus)) {\r | |
1824 | goto ON_EXIT;\r | |
1825 | }\r | |
1826 | \r | |
1827 | ASSERT (Packet != NULL);\r | |
37b68011 | 1828 | \r |
84110bbe | 1829 | Len = Packet->TotalSize;\r |
f75a7f56 | 1830 | \r |
99c048ef | 1831 | RcvString = NetbufGetByte (Packet, 0, NULL);\r |
3fd7bd08 | 1832 | ASSERT (RcvString != NULL);\r |
f75a7f56 | 1833 | \r |
99c048ef | 1834 | //\r |
1835 | // Parse Dns Response\r | |
1836 | //\r | |
84110bbe | 1837 | ParseDnsResponse (Instance, RcvString, Len, &Completed);\r |
99c048ef | 1838 | \r |
37b68011 | 1839 | ON_EXIT:\r |
99c048ef | 1840 | \r |
37b68011 FS |
1841 | if (Packet != NULL) {\r |
1842 | NetbufFree (Packet);\r | |
1843 | }\r | |
99c048ef | 1844 | \r |
37b68011 FS |
1845 | if (!Completed) {\r |
1846 | UdpIoRecvDatagram (Instance->UdpIo, DnsOnPacketReceived, Instance, 0);\r | |
1847 | }\r | |
99c048ef | 1848 | }\r |
1849 | \r | |
1850 | /**\r | |
1851 | Release the net buffer when packet is sent.\r | |
1852 | \r | |
1853 | @param Packet The packets received.\r | |
1854 | @param EndPoint The local/remote UDP access point\r | |
1855 | @param IoStatus The status of the UDP receive\r | |
1856 | @param Context The opaque parameter to the function.\r | |
1857 | \r | |
1858 | **/\r | |
1859 | VOID\r | |
1860 | EFIAPI\r | |
1861 | DnsOnPacketSent (\r | |
d1050b9d MK |
1862 | NET_BUF *Packet,\r |
1863 | UDP_END_POINT *EndPoint,\r | |
1864 | EFI_STATUS IoStatus,\r | |
1865 | VOID *Context\r | |
99c048ef | 1866 | )\r |
1867 | {\r | |
d1050b9d MK |
1868 | DNS_INSTANCE *Instance;\r |
1869 | LIST_ENTRY *Entry;\r | |
1870 | NET_MAP_ITEM *Item;\r | |
1871 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
1872 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
99c048ef | 1873 | \r |
1874 | Dns4TokenEntry = NULL;\r | |
1875 | Dns6TokenEntry = NULL;\r | |
1876 | \r | |
d1050b9d | 1877 | Instance = (DNS_INSTANCE *)Context;\r |
99c048ef | 1878 | NET_CHECK_SIGNATURE (Instance, DNS_INSTANCE_SIGNATURE);\r |
1879 | \r | |
1880 | if (Instance->Service->IpVersion == IP_VERSION_4) {\r | |
1881 | NET_LIST_FOR_EACH (Entry, &Instance->Dns4TxTokens.Used) {\r | |
1882 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
1883 | if (Packet == (NET_BUF *)(Item->Value)) {\r | |
d1050b9d | 1884 | Dns4TokenEntry = ((DNS4_TOKEN_ENTRY *)Item->Key);\r |
99c048ef | 1885 | Dns4TokenEntry->PacketToLive = Dns4TokenEntry->Token->RetryInterval;\r |
1886 | break;\r | |
1887 | }\r | |
1888 | }\r | |
1889 | } else {\r | |
1890 | NET_LIST_FOR_EACH (Entry, &Instance->Dns6TxTokens.Used) {\r | |
1891 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
1892 | if (Packet == (NET_BUF *)(Item->Value)) {\r | |
d1050b9d | 1893 | Dns6TokenEntry = ((DNS6_TOKEN_ENTRY *)Item->Key);\r |
99c048ef | 1894 | Dns6TokenEntry->PacketToLive = Dns6TokenEntry->Token->RetryInterval;\r |
1895 | break;\r | |
1896 | }\r | |
1897 | }\r | |
1898 | }\r | |
f75a7f56 | 1899 | \r |
99c048ef | 1900 | NetbufFree (Packet);\r |
1901 | }\r | |
1902 | \r | |
1903 | /**\r | |
1904 | Query request information.\r | |
1905 | \r | |
1906 | @param Instance The DNS instance\r | |
1907 | @param Packet The packet for querying request information.\r | |
1908 | \r | |
1909 | @retval EFI_SUCCESS Query request information successfully.\r | |
1910 | @retval Others Failed to query request information.\r | |
1911 | \r | |
1912 | **/\r | |
1913 | EFI_STATUS\r | |
1914 | DoDnsQuery (\r | |
d1050b9d MK |
1915 | IN DNS_INSTANCE *Instance,\r |
1916 | IN NET_BUF *Packet\r | |
99c048ef | 1917 | )\r |
1918 | {\r | |
d1050b9d | 1919 | EFI_STATUS Status;\r |
99c048ef | 1920 | \r |
1921 | //\r | |
1922 | // Ready to receive the DNS response.\r | |
1923 | //\r | |
1924 | if (Instance->UdpIo->RecvRequest == NULL) {\r | |
1925 | Status = UdpIoRecvDatagram (Instance->UdpIo, DnsOnPacketReceived, Instance, 0);\r | |
1926 | if (EFI_ERROR (Status)) {\r | |
1927 | return Status;\r | |
1928 | }\r | |
1929 | }\r | |
f75a7f56 | 1930 | \r |
99c048ef | 1931 | //\r |
1932 | // Transmit the DNS packet.\r | |
1933 | //\r | |
1934 | NET_GET_REF (Packet);\r | |
1935 | \r | |
1936 | Status = UdpIoSendDatagram (Instance->UdpIo, Packet, NULL, NULL, DnsOnPacketSent, Instance);\r | |
f75a7f56 | 1937 | \r |
99c048ef | 1938 | return Status;\r |
1939 | }\r | |
1940 | \r | |
1941 | /**\r | |
fcae1a99 | 1942 | Construct the Packet according query section.\r |
99c048ef | 1943 | \r |
1944 | @param Instance The DNS instance\r | |
f75a7f56 LG |
1945 | @param QueryName Queried Name\r |
1946 | @param Type Queried Type\r | |
1947 | @param Class Queried Class\r | |
fcae1a99 | 1948 | @param Packet The packet for query\r |
99c048ef | 1949 | \r |
1950 | @retval EFI_SUCCESS The packet is constructed.\r | |
1951 | @retval Others Failed to construct the Packet.\r | |
1952 | \r | |
1953 | **/\r | |
1954 | EFI_STATUS\r | |
fcae1a99 | 1955 | ConstructDNSQuery (\r |
d1050b9d MK |
1956 | IN DNS_INSTANCE *Instance,\r |
1957 | IN CHAR8 *QueryName,\r | |
1958 | IN UINT16 Type,\r | |
1959 | IN UINT16 Class,\r | |
1960 | OUT NET_BUF **Packet\r | |
99c048ef | 1961 | )\r |
1962 | {\r | |
d1050b9d MK |
1963 | NET_FRAGMENT Frag;\r |
1964 | DNS_HEADER *DnsHeader;\r | |
1965 | DNS_QUERY_SECTION *DnsQuery;\r | |
3700da73 JW |
1966 | \r |
1967 | //\r | |
1968 | // Messages carried by UDP are restricted to 512 bytes (not counting the IP\r | |
1969 | // or UDP headers).\r | |
1970 | //\r | |
1971 | Frag.Bulk = AllocatePool (DNS_MAX_MESSAGE_SIZE * sizeof (UINT8));\r | |
99c048ef | 1972 | if (Frag.Bulk == NULL) {\r |
1973 | return EFI_OUT_OF_RESOURCES;\r | |
1974 | }\r | |
1975 | \r | |
1976 | //\r | |
1977 | // Fill header\r | |
1978 | //\r | |
d1050b9d MK |
1979 | DnsHeader = (DNS_HEADER *)Frag.Bulk;\r |
1980 | DnsHeader->Identification = (UINT16)NET_RANDOM (NetRandomInitSeed ());\r | |
1981 | DnsHeader->Flags.Uint16 = 0x0000;\r | |
1982 | DnsHeader->Flags.Bits.RD = 1;\r | |
99c048ef | 1983 | DnsHeader->Flags.Bits.OpCode = DNS_FLAGS_OPCODE_STANDARD;\r |
d1050b9d MK |
1984 | DnsHeader->Flags.Bits.QR = DNS_FLAGS_QR_QUERY;\r |
1985 | DnsHeader->QuestionsNum = 1;\r | |
1986 | DnsHeader->AnswersNum = 0;\r | |
1987 | DnsHeader->AuthorityNum = 0;\r | |
1988 | DnsHeader->AditionalNum = 0;\r | |
99c048ef | 1989 | \r |
5e0cdec1 | 1990 | DnsHeader->Identification = HTONS (DnsHeader->Identification);\r |
d1050b9d MK |
1991 | DnsHeader->Flags.Uint16 = HTONS (DnsHeader->Flags.Uint16);\r |
1992 | DnsHeader->QuestionsNum = HTONS (DnsHeader->QuestionsNum);\r | |
1993 | DnsHeader->AnswersNum = HTONS (DnsHeader->AnswersNum);\r | |
1994 | DnsHeader->AuthorityNum = HTONS (DnsHeader->AuthorityNum);\r | |
1995 | DnsHeader->AditionalNum = HTONS (DnsHeader->AditionalNum);\r | |
99c048ef | 1996 | \r |
1997 | Frag.Len = sizeof (*DnsHeader);\r | |
1998 | \r | |
1999 | //\r | |
2000 | // Fill Query name\r | |
2001 | //\r | |
fcae1a99 | 2002 | CopyMem (Frag.Bulk + Frag.Len, QueryName, AsciiStrLen (QueryName));\r |
d1050b9d | 2003 | Frag.Len = (UINT32)(Frag.Len + AsciiStrLen (QueryName));\r |
fcae1a99 | 2004 | *(Frag.Bulk + Frag.Len) = 0;\r |
d1050b9d | 2005 | Frag.Len++;\r |
f75a7f56 | 2006 | \r |
99c048ef | 2007 | //\r |
2008 | // Rest query section\r | |
2009 | //\r | |
d1050b9d | 2010 | DnsQuery = (DNS_QUERY_SECTION *)(Frag.Bulk + Frag.Len);\r |
99c048ef | 2011 | \r |
d1050b9d | 2012 | DnsQuery->Type = HTONS (Type);\r |
fcae1a99 | 2013 | DnsQuery->Class = HTONS (Class);\r |
99c048ef | 2014 | \r |
fcae1a99 | 2015 | Frag.Len += sizeof (*DnsQuery);\r |
99c048ef | 2016 | \r |
2017 | //\r | |
2018 | // Wrap the Frag in a net buffer.\r | |
2019 | //\r | |
2020 | *Packet = NetbufFromExt (&Frag, 1, 0, 0, DnsDummyExtFree, NULL);\r | |
2021 | if (*Packet == NULL) {\r | |
2022 | FreePool (Frag.Bulk);\r | |
2023 | return EFI_OUT_OF_RESOURCES;\r | |
2024 | }\r | |
f75a7f56 | 2025 | \r |
99c048ef | 2026 | //\r |
2027 | // Store the UdpIo in ProtoData.\r | |
2028 | //\r | |
d1050b9d | 2029 | *((UINTN *)&((*Packet)->ProtoData[0])) = (UINTN)(Instance->UdpIo);\r |
99c048ef | 2030 | \r |
2031 | return EFI_SUCCESS;\r | |
2032 | }\r | |
2033 | \r | |
2034 | /**\r | |
2035 | Retransmit the packet.\r | |
2036 | \r | |
2037 | @param Instance The DNS instance\r | |
f75a7f56 | 2038 | @param Packet Retransmit the packet\r |
99c048ef | 2039 | \r |
2040 | @retval EFI_SUCCESS The packet is retransmitted.\r | |
2041 | @retval Others Failed to retransmit.\r | |
2042 | \r | |
2043 | **/\r | |
2044 | EFI_STATUS\r | |
2045 | DnsRetransmit (\r | |
d1050b9d MK |
2046 | IN DNS_INSTANCE *Instance,\r |
2047 | IN NET_BUF *Packet\r | |
99c048ef | 2048 | )\r |
2049 | {\r | |
d1050b9d | 2050 | EFI_STATUS Status;\r |
f75a7f56 | 2051 | \r |
d1050b9d | 2052 | UINT8 *Buffer;\r |
99c048ef | 2053 | \r |
2054 | ASSERT (Packet != NULL);\r | |
2055 | \r | |
2056 | //\r | |
2057 | // Set the requests to the listening port, other packets to the connected port\r | |
2058 | //\r | |
2059 | Buffer = NetbufGetByte (Packet, 0, NULL);\r | |
2060 | ASSERT (Buffer != NULL);\r | |
2061 | \r | |
2062 | NET_GET_REF (Packet);\r | |
2063 | \r | |
2064 | Status = UdpIoSendDatagram (\r | |
2065 | Instance->UdpIo,\r | |
2066 | Packet,\r | |
2067 | NULL,\r | |
2068 | NULL,\r | |
2069 | DnsOnPacketSent,\r | |
2070 | Instance\r | |
2071 | );\r | |
2072 | \r | |
2073 | if (EFI_ERROR (Status)) {\r | |
2074 | NET_PUT_REF (Packet);\r | |
2075 | }\r | |
2076 | \r | |
2077 | return Status;\r | |
2078 | }\r | |
2079 | \r | |
2080 | /**\r | |
2081 | The timer ticking function for the DNS services.\r | |
2082 | \r | |
2083 | @param Event The ticking event\r | |
2084 | @param Context The DNS service instance\r | |
2085 | \r | |
2086 | **/\r | |
2087 | VOID\r | |
2088 | EFIAPI\r | |
2089 | DnsOnTimerRetransmit (\r | |
d1050b9d MK |
2090 | IN EFI_EVENT Event,\r |
2091 | IN VOID *Context\r | |
99c048ef | 2092 | )\r |
2093 | {\r | |
d1050b9d | 2094 | DNS_SERVICE *Service;\r |
99c048ef | 2095 | \r |
d1050b9d MK |
2096 | LIST_ENTRY *Entry;\r |
2097 | LIST_ENTRY *Next;\r | |
99c048ef | 2098 | \r |
d1050b9d MK |
2099 | DNS_INSTANCE *Instance;\r |
2100 | LIST_ENTRY *EntryNetMap;\r | |
2101 | NET_MAP_ITEM *ItemNetMap;\r | |
2102 | DNS4_TOKEN_ENTRY *Dns4TokenEntry;\r | |
2103 | DNS6_TOKEN_ENTRY *Dns6TokenEntry;\r | |
99c048ef | 2104 | \r |
2105 | Dns4TokenEntry = NULL;\r | |
2106 | Dns6TokenEntry = NULL;\r | |
2107 | \r | |
d1050b9d | 2108 | Service = (DNS_SERVICE *)Context;\r |
99c048ef | 2109 | \r |
2110 | if (Service->IpVersion == IP_VERSION_4) {\r | |
2111 | //\r | |
2112 | // Iterate through all the children of the DNS service instance. Time\r | |
2113 | // out the packet. If maximum retries reached, clean the Token up.\r | |
2114 | //\r | |
2115 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Service->Dns4ChildrenList) {\r | |
2116 | Instance = NET_LIST_USER_STRUCT (Entry, DNS_INSTANCE, Link);\r | |
2117 | \r | |
2118 | EntryNetMap = Instance->Dns4TxTokens.Used.ForwardLink;\r | |
2119 | while (EntryNetMap != &Instance->Dns4TxTokens.Used) {\r | |
d1050b9d | 2120 | ItemNetMap = NET_LIST_USER_STRUCT (EntryNetMap, NET_MAP_ITEM, Link);\r |
99c048ef | 2121 | Dns4TokenEntry = (DNS4_TOKEN_ENTRY *)(ItemNetMap->Key);\r |
d1050b9d | 2122 | if ((Dns4TokenEntry->PacketToLive == 0) || (--Dns4TokenEntry->PacketToLive > 0)) {\r |
99c048ef | 2123 | EntryNetMap = EntryNetMap->ForwardLink;\r |
2124 | continue;\r | |
2125 | }\r | |
2126 | \r | |
2127 | //\r | |
81a46615 | 2128 | // Retransmit the packet if haven't reach the maximum retry count,\r |
99c048ef | 2129 | // otherwise exit the transfer.\r |
2130 | //\r | |
cd2a6240 | 2131 | if (++Dns4TokenEntry->RetryCounting <= Dns4TokenEntry->Token->RetryCount) {\r |
99c048ef | 2132 | DnsRetransmit (Instance, (NET_BUF *)ItemNetMap->Value);\r |
2133 | EntryNetMap = EntryNetMap->ForwardLink;\r | |
2134 | } else {\r | |
2135 | //\r | |
2136 | // Maximum retries reached, clean the Token up.\r | |
2137 | //\r | |
2138 | Dns4RemoveTokenEntry (&Instance->Dns4TxTokens, Dns4TokenEntry);\r | |
2139 | Dns4TokenEntry->Token->Status = EFI_TIMEOUT;\r | |
2140 | gBS->SignalEvent (Dns4TokenEntry->Token->Event);\r | |
2141 | DispatchDpc ();\r | |
f75a7f56 | 2142 | \r |
99c048ef | 2143 | //\r |
2144 | // Free the sending packet.\r | |
2145 | //\r | |
2146 | if (ItemNetMap->Value != NULL) {\r | |
2147 | NetbufFree ((NET_BUF *)(ItemNetMap->Value));\r | |
2148 | }\r | |
2149 | \r | |
2150 | EntryNetMap = Instance->Dns4TxTokens.Used.ForwardLink;\r | |
2151 | }\r | |
2152 | }\r | |
f75a7f56 | 2153 | }\r |
4ad1bd63 | 2154 | } else {\r |
99c048ef | 2155 | //\r |
2156 | // Iterate through all the children of the DNS service instance. Time\r | |
2157 | // out the packet. If maximum retries reached, clean the Token up.\r | |
2158 | //\r | |
2159 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Service->Dns6ChildrenList) {\r | |
2160 | Instance = NET_LIST_USER_STRUCT (Entry, DNS_INSTANCE, Link);\r | |
f75a7f56 | 2161 | \r |
99c048ef | 2162 | EntryNetMap = Instance->Dns6TxTokens.Used.ForwardLink;\r |
2163 | while (EntryNetMap != &Instance->Dns6TxTokens.Used) {\r | |
d1050b9d MK |
2164 | ItemNetMap = NET_LIST_USER_STRUCT (EntryNetMap, NET_MAP_ITEM, Link);\r |
2165 | Dns6TokenEntry = (DNS6_TOKEN_ENTRY *)(ItemNetMap->Key);\r | |
2166 | if ((Dns6TokenEntry->PacketToLive == 0) || (--Dns6TokenEntry->PacketToLive > 0)) {\r | |
99c048ef | 2167 | EntryNetMap = EntryNetMap->ForwardLink;\r |
2168 | continue;\r | |
2169 | }\r | |
2170 | \r | |
2171 | //\r | |
81a46615 | 2172 | // Retransmit the packet if haven't reach the maximum retry count,\r |
99c048ef | 2173 | // otherwise exit the transfer.\r |
2174 | //\r | |
cd2a6240 | 2175 | if (++Dns6TokenEntry->RetryCounting <= Dns6TokenEntry->Token->RetryCount) {\r |
d1050b9d | 2176 | DnsRetransmit (Instance, (NET_BUF *)ItemNetMap->Value);\r |
99c048ef | 2177 | EntryNetMap = EntryNetMap->ForwardLink;\r |
2178 | } else {\r | |
2179 | //\r | |
2180 | // Maximum retries reached, clean the Token up.\r | |
2181 | //\r | |
2182 | Dns6RemoveTokenEntry (&Instance->Dns6TxTokens, Dns6TokenEntry);\r | |
2183 | Dns6TokenEntry->Token->Status = EFI_TIMEOUT;\r | |
2184 | gBS->SignalEvent (Dns6TokenEntry->Token->Event);\r | |
2185 | DispatchDpc ();\r | |
f75a7f56 | 2186 | \r |
99c048ef | 2187 | //\r |
2188 | // Free the sending packet.\r | |
2189 | //\r | |
2190 | if (ItemNetMap->Value != NULL) {\r | |
d1050b9d | 2191 | NetbufFree ((NET_BUF *)(ItemNetMap->Value));\r |
99c048ef | 2192 | }\r |
2193 | \r | |
2194 | EntryNetMap = Instance->Dns6TxTokens.Used.ForwardLink;\r | |
f75a7f56 | 2195 | }\r |
99c048ef | 2196 | }\r |
2197 | }\r | |
f75a7f56 | 2198 | }\r |
99c048ef | 2199 | }\r |
2200 | \r | |
2201 | /**\r | |
2202 | The timer ticking function for the DNS driver.\r | |
2203 | \r | |
2204 | @param Event The ticking event\r | |
2205 | @param Context NULL\r | |
2206 | \r | |
2207 | **/\r | |
2208 | VOID\r | |
2209 | EFIAPI\r | |
2210 | DnsOnTimerUpdate (\r | |
d1050b9d MK |
2211 | IN EFI_EVENT Event,\r |
2212 | IN VOID *Context\r | |
99c048ef | 2213 | )\r |
2214 | {\r | |
d1050b9d MK |
2215 | LIST_ENTRY *Entry;\r |
2216 | LIST_ENTRY *Next;\r | |
2217 | DNS4_CACHE *Item4;\r | |
2218 | DNS6_CACHE *Item6;\r | |
99c048ef | 2219 | \r |
2220 | Item4 = NULL;\r | |
2221 | Item6 = NULL;\r | |
2222 | \r | |
2223 | //\r | |
2224 | // Iterate through all the DNS4 cache list.\r | |
2225 | //\r | |
2226 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns4CacheList) {\r | |
2227 | Item4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
2228 | Item4->DnsCache.Timeout--;\r | |
2229 | }\r | |
f75a7f56 | 2230 | \r |
99c048ef | 2231 | Entry = mDriverData->Dns4CacheList.ForwardLink;\r |
2232 | while (Entry != &mDriverData->Dns4CacheList) {\r | |
2233 | Item4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r | |
3093f45c | 2234 | if (Item4->DnsCache.Timeout == 0) {\r |
99c048ef | 2235 | RemoveEntryList (&Item4->AllCacheLink);\r |
43d7e607 JW |
2236 | FreePool (Item4->DnsCache.HostName);\r |
2237 | FreePool (Item4->DnsCache.IpAddress);\r | |
2238 | FreePool (Item4);\r | |
99c048ef | 2239 | Entry = mDriverData->Dns4CacheList.ForwardLink;\r |
2240 | } else {\r | |
2241 | Entry = Entry->ForwardLink;\r | |
2242 | }\r | |
2243 | }\r | |
f75a7f56 | 2244 | \r |
99c048ef | 2245 | //\r |
2246 | // Iterate through all the DNS6 cache list.\r | |
2247 | //\r | |
2248 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &mDriverData->Dns6CacheList) {\r | |
2249 | Item6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
2250 | Item6->DnsCache.Timeout--;\r | |
2251 | }\r | |
f75a7f56 | 2252 | \r |
99c048ef | 2253 | Entry = mDriverData->Dns6CacheList.ForwardLink;\r |
2254 | while (Entry != &mDriverData->Dns6CacheList) {\r | |
2255 | Item6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r | |
3093f45c | 2256 | if (Item6->DnsCache.Timeout == 0) {\r |
99c048ef | 2257 | RemoveEntryList (&Item6->AllCacheLink);\r |
43d7e607 JW |
2258 | FreePool (Item6->DnsCache.HostName);\r |
2259 | FreePool (Item6->DnsCache.IpAddress);\r | |
2260 | FreePool (Item6);\r | |
99c048ef | 2261 | Entry = mDriverData->Dns6CacheList.ForwardLink;\r |
2262 | } else {\r | |
2263 | Entry = Entry->ForwardLink;\r | |
2264 | }\r | |
2265 | }\r | |
2266 | }\r |