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da1d0201 | 1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2005 - 2007, Intel Corporation\r | |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | NetLib.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | \r | |
19 | \r | |
20 | **/\r | |
21 | \r | |
22 | #include <PiDxe.h>\r | |
23 | \r | |
24 | #include <Protocol/ServiceBinding.h>\r | |
25 | #include <Protocol/SimpleNetwork.h>\r | |
26 | #include <Protocol/LoadedImage.h>\r | |
27 | #include <Protocol/NicIp4Config.h>\r | |
3012ce5c | 28 | #include <Protocol/ComponentName.h>\r |
29 | #include <Protocol/ComponentName2.h>\r | |
da1d0201 | 30 | \r |
31 | #include <Library/NetLib.h>\r | |
32 | #include <Library/BaseLib.h>\r | |
33 | #include <Library/DebugLib.h>\r | |
34 | #include <Library/BaseMemoryLib.h>\r | |
35 | #include <Library/UefiBootServicesTableLib.h>\r | |
36 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
cbf316f2 | 37 | #include <Library/UefiLib.h>\r |
da1d0201 | 38 | #include <Library/MemoryAllocationLib.h>\r |
39 | \r | |
40 | \r | |
36ee91ca | 41 | EFI_DPC_PROTOCOL *mDpc = NULL;\r |
42 | \r | |
da1d0201 | 43 | //\r |
44 | // All the supported IP4 maskes in host byte order.\r | |
45 | //\r | |
46 | IP4_ADDR mIp4AllMasks[IP4_MASK_NUM] = {\r | |
47 | 0x00000000,\r | |
48 | 0x80000000,\r | |
49 | 0xC0000000,\r | |
50 | 0xE0000000,\r | |
51 | 0xF0000000,\r | |
52 | 0xF8000000,\r | |
53 | 0xFC000000,\r | |
54 | 0xFE000000,\r | |
55 | \r | |
56 | 0xFF000000,\r | |
57 | 0xFF800000,\r | |
58 | 0xFFC00000,\r | |
59 | 0xFFE00000,\r | |
60 | 0xFFF00000,\r | |
61 | 0xFFF80000,\r | |
62 | 0xFFFC0000,\r | |
63 | 0xFFFE0000,\r | |
64 | \r | |
65 | 0xFFFF0000,\r | |
66 | 0xFFFF8000,\r | |
67 | 0xFFFFC000,\r | |
68 | 0xFFFFE000,\r | |
69 | 0xFFFFF000,\r | |
70 | 0xFFFFF800,\r | |
71 | 0xFFFFFC00,\r | |
72 | 0xFFFFFE00,\r | |
73 | \r | |
74 | 0xFFFFFF00,\r | |
75 | 0xFFFFFF80,\r | |
76 | 0xFFFFFFC0,\r | |
77 | 0xFFFFFFE0,\r | |
78 | 0xFFFFFFF0,\r | |
79 | 0xFFFFFFF8,\r | |
80 | 0xFFFFFFFC,\r | |
81 | 0xFFFFFFFE,\r | |
82 | 0xFFFFFFFF,\r | |
83 | };\r | |
84 | \r | |
85 | EFI_IPv4_ADDRESS mZeroIp4Addr = {{0, 0, 0, 0}};\r | |
86 | \r | |
cbf316f2 | 87 | /**\r |
88 | Converts the low nibble of a byte to hex unicode character.\r | |
89 | \r | |
90 | @param Nibble lower nibble of a byte.\r | |
91 | \r | |
92 | @return Hex unicode character.\r | |
93 | \r | |
94 | **/\r | |
95 | CHAR16\r | |
96 | NibbleToHexChar (\r | |
97 | IN UINT8 Nibble\r | |
98 | )\r | |
99 | {\r | |
100 | //\r | |
101 | // Porting Guide:\r | |
102 | // This library interface is simply obsolete.\r | |
103 | // Include the source code to user code.\r | |
104 | //\r | |
105 | \r | |
106 | Nibble &= 0x0F;\r | |
107 | if (Nibble <= 0x9) {\r | |
108 | return (CHAR16)(Nibble + L'0');\r | |
109 | }\r | |
110 | \r | |
111 | return (CHAR16)(Nibble - 0xA + L'A');\r | |
112 | }\r | |
113 | \r | |
da1d0201 | 114 | /**\r |
115 | Return the length of the mask. If the mask is invalid,\r | |
116 | return the invalid length 33, which is IP4_MASK_NUM.\r | |
117 | NetMask is in the host byte order.\r | |
118 | \r | |
119 | @param NetMask The netmask to get the length from\r | |
120 | \r | |
121 | @return The length of the netmask, IP4_MASK_NUM if the mask isn't\r | |
122 | @return supported.\r | |
123 | \r | |
124 | **/\r | |
125 | INTN\r | |
126 | NetGetMaskLength (\r | |
127 | IN IP4_ADDR NetMask\r | |
128 | )\r | |
129 | {\r | |
130 | INTN Index;\r | |
131 | \r | |
132 | for (Index = 0; Index < IP4_MASK_NUM; Index++) {\r | |
133 | if (NetMask == mIp4AllMasks[Index]) {\r | |
134 | break;\r | |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | return Index;\r | |
139 | }\r | |
140 | \r | |
141 | \r | |
142 | \r | |
143 | /**\r | |
144 | Return the class of the address, such as class a, b, c.\r | |
145 | Addr is in host byte order.\r | |
146 | \r | |
147 | @param Addr The address to get the class from\r | |
148 | \r | |
149 | @return IP address class, such as IP4_ADDR_CLASSA\r | |
150 | \r | |
151 | **/\r | |
152 | INTN\r | |
153 | NetGetIpClass (\r | |
154 | IN IP4_ADDR Addr\r | |
155 | )\r | |
156 | {\r | |
157 | UINT8 ByteOne;\r | |
158 | \r | |
159 | ByteOne = (UINT8) (Addr >> 24);\r | |
160 | \r | |
161 | if ((ByteOne & 0x80) == 0) {\r | |
162 | return IP4_ADDR_CLASSA;\r | |
163 | \r | |
164 | } else if ((ByteOne & 0xC0) == 0x80) {\r | |
165 | return IP4_ADDR_CLASSB;\r | |
166 | \r | |
167 | } else if ((ByteOne & 0xE0) == 0xC0) {\r | |
168 | return IP4_ADDR_CLASSC;\r | |
169 | \r | |
170 | } else if ((ByteOne & 0xF0) == 0xE0) {\r | |
171 | return IP4_ADDR_CLASSD;\r | |
172 | \r | |
173 | } else {\r | |
174 | return IP4_ADDR_CLASSE;\r | |
175 | \r | |
176 | }\r | |
177 | }\r | |
178 | \r | |
179 | \r | |
180 | /**\r | |
181 | Check whether the IP is a valid unicast address according to\r | |
182 | the netmask. If NetMask is zero, use the IP address's class to\r | |
183 | get the default mask.\r | |
184 | \r | |
185 | @param Ip The IP to check againist\r | |
186 | @param NetMask The mask of the IP\r | |
187 | \r | |
188 | @return TRUE if IP is a valid unicast address on the network, otherwise FALSE\r | |
189 | \r | |
190 | **/\r | |
191 | BOOLEAN\r | |
192 | Ip4IsUnicast (\r | |
193 | IN IP4_ADDR Ip,\r | |
194 | IN IP4_ADDR NetMask\r | |
195 | )\r | |
196 | {\r | |
197 | INTN Class;\r | |
198 | \r | |
199 | Class = NetGetIpClass (Ip);\r | |
200 | \r | |
201 | if ((Ip == 0) || (Class >= IP4_ADDR_CLASSD)) {\r | |
202 | return FALSE;\r | |
203 | }\r | |
204 | \r | |
205 | if (NetMask == 0) {\r | |
206 | NetMask = mIp4AllMasks[Class << 3];\r | |
207 | }\r | |
208 | \r | |
209 | if (((Ip &~NetMask) == ~NetMask) || ((Ip &~NetMask) == 0)) {\r | |
210 | return FALSE;\r | |
211 | }\r | |
212 | \r | |
213 | return TRUE;\r | |
214 | }\r | |
215 | \r | |
216 | \r | |
217 | /**\r | |
218 | Initialize a random seed using current time.\r | |
219 | \r | |
220 | None\r | |
221 | \r | |
222 | @return The random seed initialized with current time.\r | |
223 | \r | |
224 | **/\r | |
225 | UINT32\r | |
226 | NetRandomInitSeed (\r | |
227 | VOID\r | |
228 | )\r | |
229 | {\r | |
230 | EFI_TIME Time;\r | |
231 | UINT32 Seed;\r | |
232 | \r | |
233 | gRT->GetTime (&Time, NULL);\r | |
36ee91ca | 234 | Seed = (~Time.Hour << 24 | Time.Day << 16 | Time.Minute << 8 | Time.Second);\r |
da1d0201 | 235 | Seed ^= Time.Nanosecond;\r |
236 | Seed ^= Time.Year << 7;\r | |
237 | \r | |
238 | return Seed;\r | |
239 | }\r | |
240 | \r | |
241 | \r | |
242 | /**\r | |
243 | Extract a UINT32 from a byte stream, then convert it to host\r | |
244 | byte order. Use this function to avoid alignment error.\r | |
245 | \r | |
246 | @param Buf The buffer to extract the UINT32.\r | |
247 | \r | |
248 | @return The UINT32 extracted.\r | |
249 | \r | |
250 | **/\r | |
251 | UINT32\r | |
252 | NetGetUint32 (\r | |
253 | IN UINT8 *Buf\r | |
254 | )\r | |
255 | {\r | |
256 | UINT32 Value;\r | |
257 | \r | |
258 | NetCopyMem (&Value, Buf, sizeof (UINT32));\r | |
259 | return NTOHL (Value);\r | |
260 | }\r | |
261 | \r | |
262 | \r | |
263 | /**\r | |
264 | Put a UINT32 to the byte stream. Convert it from host byte order\r | |
265 | to network byte order before putting.\r | |
266 | \r | |
267 | @param Buf The buffer to put the UINT32\r | |
268 | @param Data The data to put\r | |
269 | \r | |
270 | @return None\r | |
271 | \r | |
272 | **/\r | |
273 | VOID\r | |
274 | NetPutUint32 (\r | |
275 | IN UINT8 *Buf,\r | |
276 | IN UINT32 Data\r | |
277 | )\r | |
278 | {\r | |
279 | Data = HTONL (Data);\r | |
280 | NetCopyMem (Buf, &Data, sizeof (UINT32));\r | |
281 | }\r | |
282 | \r | |
283 | \r | |
284 | /**\r | |
285 | Remove the first entry on the list\r | |
286 | \r | |
287 | @param Head The list header\r | |
288 | \r | |
289 | @return The entry that is removed from the list, NULL if the list is empty.\r | |
290 | \r | |
291 | **/\r | |
292 | NET_LIST_ENTRY *\r | |
293 | NetListRemoveHead (\r | |
294 | NET_LIST_ENTRY *Head\r | |
295 | )\r | |
296 | {\r | |
297 | NET_LIST_ENTRY *First;\r | |
298 | \r | |
299 | ASSERT (Head != NULL);\r | |
300 | \r | |
301 | if (NetListIsEmpty (Head)) {\r | |
302 | return NULL;\r | |
303 | }\r | |
304 | \r | |
305 | First = Head->ForwardLink;\r | |
306 | Head->ForwardLink = First->ForwardLink;\r | |
307 | First->ForwardLink->BackLink = Head;\r | |
308 | \r | |
309 | DEBUG_CODE (\r | |
310 | First->ForwardLink = (LIST_ENTRY *) NULL;\r | |
311 | First->BackLink = (LIST_ENTRY *) NULL;\r | |
312 | );\r | |
313 | \r | |
314 | return First;\r | |
315 | }\r | |
316 | \r | |
317 | \r | |
318 | /**\r | |
319 | Remove the last entry on the list\r | |
320 | \r | |
321 | @param Head The list head\r | |
322 | \r | |
323 | @return The entry that is removed from the list, NULL if the list is empty.\r | |
324 | \r | |
325 | **/\r | |
326 | NET_LIST_ENTRY *\r | |
327 | NetListRemoveTail (\r | |
328 | NET_LIST_ENTRY *Head\r | |
329 | )\r | |
330 | {\r | |
331 | NET_LIST_ENTRY *Last;\r | |
332 | \r | |
333 | ASSERT (Head != NULL);\r | |
334 | \r | |
335 | if (NetListIsEmpty (Head)) {\r | |
336 | return NULL;\r | |
337 | }\r | |
338 | \r | |
339 | Last = Head->BackLink;\r | |
340 | Head->BackLink = Last->BackLink;\r | |
341 | Last->BackLink->ForwardLink = Head;\r | |
342 | \r | |
343 | DEBUG_CODE (\r | |
344 | Last->ForwardLink = (LIST_ENTRY *) NULL;\r | |
345 | Last->BackLink = (LIST_ENTRY *) NULL;\r | |
346 | );\r | |
347 | \r | |
348 | return Last;\r | |
349 | }\r | |
350 | \r | |
351 | \r | |
352 | /**\r | |
353 | Insert the NewEntry after the PrevEntry\r | |
354 | \r | |
355 | @param PrevEntry The previous entry to insert after\r | |
356 | @param NewEntry The new entry to insert\r | |
357 | \r | |
358 | @return None\r | |
359 | \r | |
360 | **/\r | |
361 | VOID\r | |
362 | NetListInsertAfter (\r | |
363 | IN NET_LIST_ENTRY *PrevEntry,\r | |
364 | IN NET_LIST_ENTRY *NewEntry\r | |
365 | )\r | |
366 | {\r | |
367 | NewEntry->BackLink = PrevEntry;\r | |
368 | NewEntry->ForwardLink = PrevEntry->ForwardLink;\r | |
369 | PrevEntry->ForwardLink->BackLink = NewEntry;\r | |
370 | PrevEntry->ForwardLink = NewEntry;\r | |
371 | }\r | |
372 | \r | |
373 | \r | |
374 | /**\r | |
375 | Insert the NewEntry before the PostEntry\r | |
376 | \r | |
377 | @param PostEntry The entry to insert before\r | |
378 | @param NewEntry The new entry to insert\r | |
379 | \r | |
380 | @return None\r | |
381 | \r | |
382 | **/\r | |
383 | VOID\r | |
384 | NetListInsertBefore (\r | |
385 | IN NET_LIST_ENTRY *PostEntry,\r | |
386 | IN NET_LIST_ENTRY *NewEntry\r | |
387 | )\r | |
388 | {\r | |
389 | NewEntry->ForwardLink = PostEntry;\r | |
390 | NewEntry->BackLink = PostEntry->BackLink;\r | |
391 | PostEntry->BackLink->ForwardLink = NewEntry;\r | |
392 | PostEntry->BackLink = NewEntry;\r | |
393 | }\r | |
394 | \r | |
395 | \r | |
396 | /**\r | |
397 | Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r | |
398 | \r | |
399 | @param Map The netmap to initialize\r | |
400 | \r | |
401 | @return None\r | |
402 | \r | |
403 | **/\r | |
404 | VOID\r | |
405 | NetMapInit (\r | |
406 | IN NET_MAP *Map\r | |
407 | )\r | |
408 | {\r | |
409 | ASSERT (Map != NULL);\r | |
410 | \r | |
411 | NetListInit (&Map->Used);\r | |
412 | NetListInit (&Map->Recycled);\r | |
413 | Map->Count = 0;\r | |
414 | }\r | |
415 | \r | |
416 | \r | |
417 | /**\r | |
418 | To clean up the netmap, that is, release allocated memories.\r | |
419 | \r | |
420 | @param Map The netmap to clean up.\r | |
421 | \r | |
422 | @return None\r | |
423 | \r | |
424 | **/\r | |
425 | VOID\r | |
426 | NetMapClean (\r | |
427 | IN NET_MAP *Map\r | |
428 | )\r | |
429 | {\r | |
430 | NET_MAP_ITEM *Item;\r | |
431 | NET_LIST_ENTRY *Entry;\r | |
432 | NET_LIST_ENTRY *Next;\r | |
433 | \r | |
434 | ASSERT (Map != NULL);\r | |
435 | \r | |
436 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Map->Used) {\r | |
437 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
438 | \r | |
439 | NetListRemoveEntry (&Item->Link);\r | |
440 | Map->Count--;\r | |
441 | \r | |
442 | NetFreePool (Item);\r | |
443 | }\r | |
444 | \r | |
445 | ASSERT ((Map->Count == 0) && NetListIsEmpty (&Map->Used));\r | |
446 | \r | |
447 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Map->Recycled) {\r | |
448 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
449 | \r | |
450 | NetListRemoveEntry (&Item->Link);\r | |
451 | NetFreePool (Item);\r | |
452 | }\r | |
453 | \r | |
454 | ASSERT (NetListIsEmpty (&Map->Recycled));\r | |
455 | }\r | |
456 | \r | |
457 | \r | |
458 | /**\r | |
459 | Test whether the netmap is empty\r | |
460 | \r | |
461 | @param Map The net map to test\r | |
462 | \r | |
463 | @return TRUE if the netmap is empty, otherwise FALSE.\r | |
464 | \r | |
465 | **/\r | |
466 | BOOLEAN\r | |
467 | NetMapIsEmpty (\r | |
468 | IN NET_MAP *Map\r | |
469 | )\r | |
470 | {\r | |
471 | ASSERT (Map != NULL);\r | |
472 | return (BOOLEAN) (Map->Count == 0);\r | |
473 | }\r | |
474 | \r | |
475 | \r | |
476 | /**\r | |
477 | Return the number of the <Key, Value> pairs in the netmap.\r | |
478 | \r | |
479 | @param Map The netmap to get the entry number\r | |
480 | \r | |
481 | @return The entry number in the netmap.\r | |
482 | \r | |
483 | **/\r | |
484 | UINTN\r | |
485 | NetMapGetCount (\r | |
486 | IN NET_MAP *Map\r | |
487 | )\r | |
488 | {\r | |
489 | return Map->Count;\r | |
490 | }\r | |
491 | \r | |
492 | \r | |
493 | /**\r | |
494 | Allocate an item for the netmap. It will try to allocate\r | |
495 | a batch of items and return one.\r | |
496 | \r | |
497 | @param Map The netmap to allocate item for\r | |
498 | \r | |
499 | @return The allocated item or NULL\r | |
500 | \r | |
501 | **/\r | |
502 | STATIC\r | |
503 | NET_MAP_ITEM *\r | |
504 | NetMapAllocItem (\r | |
505 | IN NET_MAP *Map\r | |
506 | )\r | |
507 | {\r | |
508 | NET_MAP_ITEM *Item;\r | |
509 | NET_LIST_ENTRY *Head;\r | |
510 | UINTN Index;\r | |
511 | \r | |
512 | ASSERT (Map != NULL);\r | |
513 | \r | |
514 | Head = &Map->Recycled;\r | |
515 | \r | |
516 | if (NetListIsEmpty (Head)) {\r | |
517 | for (Index = 0; Index < NET_MAP_INCREAMENT; Index++) {\r | |
518 | Item = NetAllocatePool (sizeof (NET_MAP_ITEM));\r | |
519 | \r | |
520 | if (Item == NULL) {\r | |
521 | if (Index == 0) {\r | |
522 | return NULL;\r | |
523 | }\r | |
524 | \r | |
525 | break;\r | |
526 | }\r | |
527 | \r | |
528 | NetListInsertHead (Head, &Item->Link);\r | |
529 | }\r | |
530 | }\r | |
531 | \r | |
532 | Item = NET_LIST_HEAD (Head, NET_MAP_ITEM, Link);\r | |
533 | NetListRemoveHead (Head);\r | |
534 | \r | |
535 | return Item;\r | |
536 | }\r | |
537 | \r | |
538 | \r | |
539 | /**\r | |
540 | Allocate an item to save the <Key, Value> pair to the head of the netmap.\r | |
541 | \r | |
542 | @param Map The netmap to insert into\r | |
543 | @param Key The user's key\r | |
544 | @param Value The user's value for the key\r | |
545 | \r | |
546 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item\r | |
547 | @retval EFI_SUCCESS The item is inserted to the head\r | |
548 | \r | |
549 | **/\r | |
550 | EFI_STATUS\r | |
551 | NetMapInsertHead (\r | |
552 | IN NET_MAP *Map,\r | |
553 | IN VOID *Key,\r | |
554 | IN VOID *Value OPTIONAL\r | |
555 | )\r | |
556 | {\r | |
557 | NET_MAP_ITEM *Item;\r | |
558 | \r | |
559 | ASSERT (Map != NULL);\r | |
560 | \r | |
561 | Item = NetMapAllocItem (Map);\r | |
562 | \r | |
563 | if (Item == NULL) {\r | |
564 | return EFI_OUT_OF_RESOURCES;\r | |
565 | }\r | |
566 | \r | |
567 | Item->Key = Key;\r | |
568 | Item->Value = Value;\r | |
569 | NetListInsertHead (&Map->Used, &Item->Link);\r | |
570 | \r | |
571 | Map->Count++;\r | |
572 | return EFI_SUCCESS;\r | |
573 | }\r | |
574 | \r | |
575 | \r | |
576 | /**\r | |
577 | Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r | |
578 | \r | |
579 | @param Map The netmap to insert into\r | |
580 | @param Key The user's key\r | |
581 | @param Value The user's value for the key\r | |
582 | \r | |
583 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item\r | |
584 | @retval EFI_SUCCESS The item is inserted to the tail\r | |
585 | \r | |
586 | **/\r | |
587 | EFI_STATUS\r | |
588 | NetMapInsertTail (\r | |
589 | IN NET_MAP *Map,\r | |
590 | IN VOID *Key,\r | |
591 | IN VOID *Value OPTIONAL\r | |
592 | )\r | |
593 | {\r | |
594 | NET_MAP_ITEM *Item;\r | |
595 | \r | |
596 | ASSERT (Map != NULL);\r | |
597 | \r | |
598 | Item = NetMapAllocItem (Map);\r | |
599 | \r | |
600 | if (Item == NULL) {\r | |
601 | return EFI_OUT_OF_RESOURCES;\r | |
602 | }\r | |
603 | \r | |
604 | Item->Key = Key;\r | |
605 | Item->Value = Value;\r | |
606 | NetListInsertTail (&Map->Used, &Item->Link);\r | |
607 | \r | |
608 | Map->Count++;\r | |
609 | \r | |
610 | return EFI_SUCCESS;\r | |
611 | }\r | |
612 | \r | |
613 | \r | |
614 | /**\r | |
615 | Check whther the item is in the Map\r | |
616 | \r | |
617 | @param Map The netmap to search within\r | |
618 | @param Item The item to search\r | |
619 | \r | |
620 | @return TRUE if the item is in the netmap, otherwise FALSE.\r | |
621 | \r | |
622 | **/\r | |
623 | STATIC\r | |
624 | BOOLEAN\r | |
625 | NetItemInMap (\r | |
626 | IN NET_MAP *Map,\r | |
627 | IN NET_MAP_ITEM *Item\r | |
628 | )\r | |
629 | {\r | |
630 | NET_LIST_ENTRY *ListEntry;\r | |
631 | \r | |
632 | NET_LIST_FOR_EACH (ListEntry, &Map->Used) {\r | |
633 | if (ListEntry == &Item->Link) {\r | |
634 | return TRUE;\r | |
635 | }\r | |
636 | }\r | |
637 | \r | |
638 | return FALSE;\r | |
639 | }\r | |
640 | \r | |
641 | \r | |
642 | /**\r | |
643 | Find the key in the netmap\r | |
644 | \r | |
645 | @param Map The netmap to search within\r | |
646 | @param Key The key to search\r | |
647 | \r | |
648 | @return The point to the item contains the Key, or NULL if Key isn't in the map.\r | |
649 | \r | |
650 | **/\r | |
651 | NET_MAP_ITEM *\r | |
652 | NetMapFindKey (\r | |
653 | IN NET_MAP *Map,\r | |
654 | IN VOID *Key\r | |
655 | )\r | |
656 | {\r | |
657 | NET_LIST_ENTRY *Entry;\r | |
658 | NET_MAP_ITEM *Item;\r | |
659 | \r | |
660 | ASSERT (Map != NULL);\r | |
661 | \r | |
662 | NET_LIST_FOR_EACH (Entry, &Map->Used) {\r | |
663 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
664 | \r | |
665 | if (Item->Key == Key) {\r | |
666 | return Item;\r | |
667 | }\r | |
668 | }\r | |
669 | \r | |
670 | return NULL;\r | |
671 | }\r | |
672 | \r | |
673 | \r | |
674 | /**\r | |
675 | Remove the item from the netmap\r | |
676 | \r | |
677 | @param Map The netmap to remove the item from\r | |
678 | @param Item The item to remove\r | |
679 | @param Value The variable to receive the value if not NULL\r | |
680 | \r | |
681 | @return The key of the removed item.\r | |
682 | \r | |
683 | **/\r | |
684 | VOID *\r | |
685 | NetMapRemoveItem (\r | |
686 | IN NET_MAP *Map,\r | |
687 | IN NET_MAP_ITEM *Item,\r | |
688 | OUT VOID **Value OPTIONAL\r | |
689 | )\r | |
690 | {\r | |
691 | ASSERT ((Map != NULL) && (Item != NULL));\r | |
692 | ASSERT (NetItemInMap (Map, Item));\r | |
693 | \r | |
694 | NetListRemoveEntry (&Item->Link);\r | |
695 | Map->Count--;\r | |
696 | NetListInsertHead (&Map->Recycled, &Item->Link);\r | |
697 | \r | |
698 | if (Value != NULL) {\r | |
699 | *Value = Item->Value;\r | |
700 | }\r | |
701 | \r | |
702 | return Item->Key;\r | |
703 | }\r | |
704 | \r | |
705 | \r | |
706 | /**\r | |
707 | Remove the first entry on the netmap\r | |
708 | \r | |
709 | @param Map The netmap to remove the head from\r | |
710 | @param Value The variable to receive the value if not NULL\r | |
711 | \r | |
712 | @return The key of the item removed\r | |
713 | \r | |
714 | **/\r | |
715 | VOID *\r | |
716 | NetMapRemoveHead (\r | |
717 | IN NET_MAP *Map,\r | |
718 | OUT VOID **Value OPTIONAL\r | |
719 | )\r | |
720 | {\r | |
721 | NET_MAP_ITEM *Item;\r | |
722 | \r | |
723 | //\r | |
724 | // Often, it indicates a programming error to remove\r | |
725 | // the first entry in an empty list\r | |
726 | //\r | |
727 | ASSERT (Map && !NetListIsEmpty (&Map->Used));\r | |
728 | \r | |
729 | Item = NET_LIST_HEAD (&Map->Used, NET_MAP_ITEM, Link);\r | |
730 | NetListRemoveEntry (&Item->Link);\r | |
731 | Map->Count--;\r | |
732 | NetListInsertHead (&Map->Recycled, &Item->Link);\r | |
733 | \r | |
734 | if (Value != NULL) {\r | |
735 | *Value = Item->Value;\r | |
736 | }\r | |
737 | \r | |
738 | return Item->Key;\r | |
739 | }\r | |
740 | \r | |
741 | \r | |
742 | /**\r | |
743 | Remove the last entry on the netmap\r | |
744 | \r | |
745 | @param Map The netmap to remove the tail from\r | |
746 | @param Value The variable to receive the value if not NULL\r | |
747 | \r | |
748 | @return The key of the item removed\r | |
749 | \r | |
750 | **/\r | |
751 | VOID *\r | |
752 | NetMapRemoveTail (\r | |
753 | IN NET_MAP *Map,\r | |
754 | OUT VOID **Value OPTIONAL\r | |
755 | )\r | |
756 | {\r | |
757 | NET_MAP_ITEM *Item;\r | |
758 | \r | |
759 | //\r | |
760 | // Often, it indicates a programming error to remove\r | |
761 | // the last entry in an empty list\r | |
762 | //\r | |
763 | ASSERT (Map && !NetListIsEmpty (&Map->Used));\r | |
764 | \r | |
765 | Item = NET_LIST_TAIL (&Map->Used, NET_MAP_ITEM, Link);\r | |
766 | NetListRemoveEntry (&Item->Link);\r | |
767 | Map->Count--;\r | |
768 | NetListInsertHead (&Map->Recycled, &Item->Link);\r | |
769 | \r | |
770 | if (Value != NULL) {\r | |
771 | *Value = Item->Value;\r | |
772 | }\r | |
773 | \r | |
774 | return Item->Key;\r | |
775 | }\r | |
776 | \r | |
777 | \r | |
778 | /**\r | |
779 | Iterate through the netmap and call CallBack for each item. It will\r | |
780 | contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r | |
781 | from the loop. It returns the CallBack's last return value. This\r | |
782 | function is delete safe for the current item.\r | |
783 | \r | |
784 | @param Map The Map to iterate through\r | |
785 | @param CallBack The callback function to call for each item.\r | |
786 | @param Arg The opaque parameter to the callback\r | |
787 | \r | |
788 | @return It returns the CallBack's last return value.\r | |
789 | \r | |
790 | **/\r | |
791 | EFI_STATUS\r | |
792 | NetMapIterate (\r | |
793 | IN NET_MAP *Map,\r | |
794 | IN NET_MAP_CALLBACK CallBack,\r | |
795 | IN VOID *Arg\r | |
796 | )\r | |
797 | {\r | |
798 | \r | |
799 | NET_LIST_ENTRY *Entry;\r | |
800 | NET_LIST_ENTRY *Next;\r | |
801 | NET_LIST_ENTRY *Head;\r | |
802 | NET_MAP_ITEM *Item;\r | |
803 | EFI_STATUS Result;\r | |
804 | \r | |
805 | ASSERT ((Map != NULL) && (CallBack != NULL));\r | |
806 | \r | |
807 | Head = &Map->Used;\r | |
808 | \r | |
809 | if (NetListIsEmpty (Head)) {\r | |
810 | return EFI_SUCCESS;\r | |
811 | }\r | |
812 | \r | |
813 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Head) {\r | |
814 | Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r | |
815 | Result = CallBack (Map, Item, Arg);\r | |
816 | \r | |
817 | if (EFI_ERROR (Result)) {\r | |
818 | return Result;\r | |
819 | }\r | |
820 | }\r | |
821 | \r | |
822 | return EFI_SUCCESS;\r | |
823 | }\r | |
824 | \r | |
825 | \r | |
826 | /**\r | |
827 | This is the default unload handle for all the network drivers.\r | |
828 | \r | |
829 | @param ImageHandle The drivers' driver image.\r | |
830 | \r | |
831 | @retval EFI_SUCCESS The image is unloaded.\r | |
832 | @retval Others Failed to unload the image.\r | |
833 | \r | |
834 | **/\r | |
835 | EFI_STATUS\r | |
836 | EFIAPI\r | |
837 | NetLibDefaultUnload (\r | |
838 | IN EFI_HANDLE ImageHandle\r | |
839 | )\r | |
840 | {\r | |
841 | EFI_STATUS Status;\r | |
842 | EFI_HANDLE *DeviceHandleBuffer;\r | |
843 | UINTN DeviceHandleCount;\r | |
844 | UINTN Index;\r | |
845 | EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;\r | |
846 | EFI_COMPONENT_NAME_PROTOCOL *ComponentName;\r | |
3012ce5c | 847 | EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;\r |
da1d0201 | 848 | \r |
849 | //\r | |
850 | // Get the list of all the handles in the handle database.\r | |
851 | // If there is an error getting the list, then the unload\r | |
852 | // operation fails.\r | |
853 | //\r | |
854 | Status = gBS->LocateHandleBuffer (\r | |
855 | AllHandles,\r | |
856 | NULL,\r | |
857 | NULL,\r | |
858 | &DeviceHandleCount,\r | |
859 | &DeviceHandleBuffer\r | |
860 | );\r | |
861 | \r | |
862 | if (EFI_ERROR (Status)) {\r | |
863 | return Status;\r | |
864 | }\r | |
865 | \r | |
866 | //\r | |
867 | // Disconnect the driver specified by ImageHandle from all\r | |
868 | // the devices in the handle database.\r | |
869 | //\r | |
870 | for (Index = 0; Index < DeviceHandleCount; Index++) {\r | |
871 | Status = gBS->DisconnectController (\r | |
872 | DeviceHandleBuffer[Index],\r | |
873 | ImageHandle,\r | |
874 | NULL\r | |
875 | );\r | |
876 | }\r | |
877 | \r | |
878 | //\r | |
879 | // Uninstall all the protocols installed in the driver entry point\r | |
880 | //\r | |
881 | for (Index = 0; Index < DeviceHandleCount; Index++) {\r | |
882 | Status = gBS->HandleProtocol (\r | |
883 | DeviceHandleBuffer[Index],\r | |
884 | &gEfiDriverBindingProtocolGuid,\r | |
885 | (VOID **) &DriverBinding\r | |
886 | );\r | |
887 | \r | |
888 | if (EFI_ERROR (Status)) {\r | |
889 | continue;\r | |
890 | }\r | |
891 | \r | |
892 | if (DriverBinding->ImageHandle != ImageHandle) {\r | |
893 | continue;\r | |
894 | }\r | |
895 | \r | |
896 | gBS->UninstallProtocolInterface (\r | |
897 | ImageHandle,\r | |
898 | &gEfiDriverBindingProtocolGuid,\r | |
899 | DriverBinding\r | |
900 | );\r | |
901 | Status = gBS->HandleProtocol (\r | |
902 | DeviceHandleBuffer[Index],\r | |
903 | &gEfiComponentNameProtocolGuid,\r | |
904 | (VOID **) &ComponentName\r | |
905 | );\r | |
906 | if (!EFI_ERROR (Status)) {\r | |
907 | gBS->UninstallProtocolInterface (\r | |
908 | ImageHandle,\r | |
909 | &gEfiComponentNameProtocolGuid,\r | |
910 | ComponentName\r | |
911 | );\r | |
912 | }\r | |
913 | \r | |
914 | Status = gBS->HandleProtocol (\r | |
915 | DeviceHandleBuffer[Index],\r | |
3012ce5c | 916 | &gEfiComponentName2ProtocolGuid,\r |
917 | (VOID **) &ComponentName2\r | |
da1d0201 | 918 | );\r |
da1d0201 | 919 | if (!EFI_ERROR (Status)) {\r |
920 | gBS->UninstallProtocolInterface (\r | |
3012ce5c | 921 | ImageHandle,\r |
922 | &gEfiComponentName2ProtocolGuid,\r | |
923 | ComponentName2\r | |
924 | );\r | |
da1d0201 | 925 | }\r |
926 | }\r | |
927 | \r | |
928 | //\r | |
929 | // Free the buffer containing the list of handles from the handle database\r | |
930 | //\r | |
931 | if (DeviceHandleBuffer != NULL) {\r | |
932 | gBS->FreePool (DeviceHandleBuffer);\r | |
933 | }\r | |
934 | \r | |
935 | return EFI_SUCCESS;\r | |
936 | }\r | |
937 | \r | |
938 | \r | |
939 | \r | |
940 | /**\r | |
941 | Create a child of the service that is identified by ServiceBindingGuid.\r | |
942 | \r | |
943 | @param Controller The controller which has the service installed.\r | |
944 | @param Image The image handle used to open service.\r | |
945 | @param ServiceBindingGuid The service's Guid.\r | |
946 | @param ChildHandle The handle to receive the create child\r | |
947 | \r | |
948 | @retval EFI_SUCCESS The child is successfully created.\r | |
949 | @retval Others Failed to create the child.\r | |
950 | \r | |
951 | **/\r | |
952 | EFI_STATUS\r | |
953 | NetLibCreateServiceChild (\r | |
954 | IN EFI_HANDLE Controller,\r | |
955 | IN EFI_HANDLE Image,\r | |
956 | IN EFI_GUID *ServiceBindingGuid,\r | |
957 | OUT EFI_HANDLE *ChildHandle\r | |
958 | )\r | |
959 | {\r | |
960 | EFI_STATUS Status;\r | |
961 | EFI_SERVICE_BINDING_PROTOCOL *Service;\r | |
962 | \r | |
963 | \r | |
964 | ASSERT ((ServiceBindingGuid != NULL) && (ChildHandle != NULL));\r | |
965 | \r | |
966 | //\r | |
967 | // Get the ServiceBinding Protocol\r | |
968 | //\r | |
969 | Status = gBS->OpenProtocol (\r | |
970 | Controller,\r | |
971 | ServiceBindingGuid,\r | |
972 | (VOID **) &Service,\r | |
973 | Image,\r | |
974 | Controller,\r | |
975 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
976 | );\r | |
977 | \r | |
978 | if (EFI_ERROR (Status)) {\r | |
979 | return Status;\r | |
980 | }\r | |
981 | \r | |
982 | //\r | |
983 | // Create a child\r | |
984 | //\r | |
985 | Status = Service->CreateChild (Service, ChildHandle);\r | |
986 | return Status;\r | |
987 | }\r | |
988 | \r | |
989 | \r | |
990 | /**\r | |
991 | Destory a child of the service that is identified by ServiceBindingGuid.\r | |
992 | \r | |
993 | @param Controller The controller which has the service installed.\r | |
994 | @param Image The image handle used to open service.\r | |
995 | @param ServiceBindingGuid The service's Guid.\r | |
996 | @param ChildHandle The child to destory\r | |
997 | \r | |
998 | @retval EFI_SUCCESS The child is successfully destoried.\r | |
999 | @retval Others Failed to destory the child.\r | |
1000 | \r | |
1001 | **/\r | |
1002 | EFI_STATUS\r | |
1003 | NetLibDestroyServiceChild (\r | |
1004 | IN EFI_HANDLE Controller,\r | |
1005 | IN EFI_HANDLE Image,\r | |
1006 | IN EFI_GUID *ServiceBindingGuid,\r | |
1007 | IN EFI_HANDLE ChildHandle\r | |
1008 | )\r | |
1009 | {\r | |
1010 | EFI_STATUS Status;\r | |
1011 | EFI_SERVICE_BINDING_PROTOCOL *Service;\r | |
1012 | \r | |
1013 | ASSERT (ServiceBindingGuid != NULL);\r | |
1014 | \r | |
1015 | //\r | |
1016 | // Get the ServiceBinding Protocol\r | |
1017 | //\r | |
1018 | Status = gBS->OpenProtocol (\r | |
1019 | Controller,\r | |
1020 | ServiceBindingGuid,\r | |
1021 | (VOID **) &Service,\r | |
1022 | Image,\r | |
1023 | Controller,\r | |
1024 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1025 | );\r | |
1026 | \r | |
1027 | if (EFI_ERROR (Status)) {\r | |
1028 | return Status;\r | |
1029 | }\r | |
1030 | \r | |
1031 | //\r | |
1032 | // destory the child\r | |
1033 | //\r | |
1034 | Status = Service->DestroyChild (Service, ChildHandle);\r | |
1035 | return Status;\r | |
1036 | }\r | |
1037 | \r | |
1038 | \r | |
1039 | /**\r | |
1040 | Convert the mac address of the simple network protocol installed on\r | |
1041 | SnpHandle to a unicode string. Callers are responsible for freeing the\r | |
1042 | string storage.\r | |
1043 | \r | |
1044 | @param SnpHandle The handle where the simple network protocol is\r | |
1045 | installed on.\r | |
1046 | @param ImageHandle The image handle used to act as the agent handle to\r | |
1047 | get the simple network protocol.\r | |
1048 | @param MacString The pointer to store the address of the string\r | |
1049 | representation of the mac address.\r | |
1050 | \r | |
1051 | @retval EFI_OUT_OF_RESOURCES There are not enough memory resource.\r | |
1052 | @retval other Failed to open the simple network protocol.\r | |
1053 | \r | |
1054 | **/\r | |
1055 | EFI_STATUS\r | |
1056 | NetLibGetMacString (\r | |
1057 | IN EFI_HANDLE SnpHandle,\r | |
1058 | IN EFI_HANDLE ImageHandle,\r | |
1059 | IN OUT CHAR16 **MacString\r | |
1060 | )\r | |
1061 | {\r | |
1062 | EFI_STATUS Status;\r | |
1063 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
1064 | EFI_SIMPLE_NETWORK_MODE *Mode;\r | |
1065 | CHAR16 *MacAddress;\r | |
1066 | UINTN Index;\r | |
1067 | \r | |
1068 | *MacString = NULL;\r | |
1069 | \r | |
1070 | //\r | |
1071 | // Get the Simple Network protocol from the SnpHandle.\r | |
1072 | //\r | |
1073 | Status = gBS->OpenProtocol (\r | |
1074 | SnpHandle,\r | |
1075 | &gEfiSimpleNetworkProtocolGuid,\r | |
1076 | (VOID **) &Snp,\r | |
1077 | ImageHandle,\r | |
1078 | SnpHandle,\r | |
1079 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1080 | );\r | |
1081 | if (EFI_ERROR (Status)) {\r | |
1082 | return Status;\r | |
1083 | }\r | |
1084 | \r | |
1085 | Mode = Snp->Mode;\r | |
1086 | \r | |
1087 | //\r | |
1088 | // It takes 2 unicode characters to represent a 1 byte binary buffer.\r | |
1089 | // Plus one unicode character for the null-terminator.\r | |
1090 | //\r | |
1091 | MacAddress = NetAllocatePool ((2 * Mode->HwAddressSize + 1) * sizeof (CHAR16));\r | |
1092 | if (MacAddress == NULL) {\r | |
1093 | return EFI_OUT_OF_RESOURCES;\r | |
1094 | }\r | |
1095 | \r | |
1096 | //\r | |
1097 | // Convert the mac address into a unicode string.\r | |
1098 | //\r | |
1099 | for (Index = 0; Index < Mode->HwAddressSize; Index++) {\r | |
1100 | MacAddress[Index * 2] = NibbleToHexChar ((UINT8) (Mode->CurrentAddress.Addr[Index] >> 4));\r | |
1101 | MacAddress[Index * 2 + 1] = NibbleToHexChar (Mode->CurrentAddress.Addr[Index]);\r | |
1102 | }\r | |
1103 | \r | |
1104 | MacAddress[Mode->HwAddressSize * 2] = L'\0';\r | |
1105 | \r | |
1106 | *MacString = MacAddress;\r | |
1107 | \r | |
1108 | return EFI_SUCCESS;\r | |
1109 | }\r | |
1110 | \r | |
1111 | /**\r | |
1112 | Check the default address used by the IPv4 driver is static or dynamic (acquired\r | |
1113 | from DHCP).\r | |
1114 | \r | |
1115 | @param Controller The controller handle which has the NIC Ip4 Config Protocol\r | |
1116 | relative with the default address to judge.\r | |
1117 | \r | |
1118 | @retval TRUE If the default address is static.\r | |
1119 | @retval FALSE If the default address is acquired from DHCP.\r | |
1120 | \r | |
1121 | **/\r | |
1122 | STATIC\r | |
1123 | BOOLEAN\r | |
1124 | NetLibDefaultAddressIsStatic (\r | |
1125 | IN EFI_HANDLE Controller\r | |
1126 | )\r | |
1127 | {\r | |
1128 | EFI_STATUS Status;\r | |
1129 | EFI_NIC_IP4_CONFIG_PROTOCOL *NicIp4;\r | |
1130 | UINTN Len;\r | |
1131 | NIC_IP4_CONFIG_INFO *ConfigInfo;\r | |
1132 | BOOLEAN IsStatic;\r | |
1133 | \r | |
1134 | Status = gBS->HandleProtocol (\r | |
1135 | Controller,\r | |
1136 | &gEfiNicIp4ConfigProtocolGuid,\r | |
1137 | (VOID **) &NicIp4\r | |
1138 | );\r | |
1139 | if (EFI_ERROR (Status)) {\r | |
1140 | return TRUE;\r | |
1141 | }\r | |
1142 | \r | |
1143 | Len = 0;\r | |
1144 | Status = NicIp4->GetInfo (NicIp4, &Len, NULL);\r | |
1145 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
1146 | return TRUE;\r | |
1147 | }\r | |
1148 | \r | |
1149 | ConfigInfo = NetAllocatePool (Len);\r | |
1150 | if (ConfigInfo == NULL) {\r | |
1151 | return TRUE;\r | |
1152 | }\r | |
1153 | \r | |
1154 | IsStatic = TRUE;\r | |
1155 | Status = NicIp4->GetInfo (NicIp4, &Len, ConfigInfo);\r | |
1156 | if (EFI_ERROR (Status)) {\r | |
1157 | goto ON_EXIT;\r | |
1158 | }\r | |
1159 | \r | |
1160 | IsStatic = (BOOLEAN) (ConfigInfo->Source == IP4_CONFIG_SOURCE_STATIC);\r | |
1161 | \r | |
1162 | ON_EXIT:\r | |
1163 | \r | |
1164 | NetFreePool (ConfigInfo);\r | |
1165 | \r | |
1166 | return IsStatic;\r | |
1167 | }\r | |
1168 | \r | |
1169 | /**\r | |
1170 | Create an IPv4 device path node.\r | |
1171 | \r | |
1172 | @param Node Pointer to the IPv4 device path node.\r | |
1173 | @param Controller The handle where the NIC IP4 config protocol resides.\r | |
1174 | @param LocalIp The local IPv4 address.\r | |
1175 | @param LocalPort The local port.\r | |
1176 | @param RemoteIp The remote IPv4 address.\r | |
1177 | @param RemotePort The remote port.\r | |
1178 | @param Protocol The protocol type in the IP header.\r | |
1179 | @param UseDefaultAddress Whether this instance is using default address or not.\r | |
1180 | \r | |
1181 | @retval None\r | |
1182 | **/\r | |
1183 | VOID\r | |
1184 | NetLibCreateIPv4DPathNode (\r | |
1185 | IN OUT IPv4_DEVICE_PATH *Node,\r | |
1186 | IN EFI_HANDLE Controller,\r | |
1187 | IN IP4_ADDR LocalIp,\r | |
1188 | IN UINT16 LocalPort,\r | |
1189 | IN IP4_ADDR RemoteIp,\r | |
1190 | IN UINT16 RemotePort,\r | |
1191 | IN UINT16 Protocol,\r | |
1192 | IN BOOLEAN UseDefaultAddress\r | |
1193 | )\r | |
1194 | {\r | |
1195 | Node->Header.Type = MESSAGING_DEVICE_PATH;\r | |
1196 | Node->Header.SubType = MSG_IPv4_DP;\r | |
1197 | SetDevicePathNodeLength (&Node->Header, 19);\r | |
1198 | \r | |
1199 | NetCopyMem (&Node->LocalIpAddress, &LocalIp, sizeof (EFI_IPv4_ADDRESS));\r | |
1200 | NetCopyMem (&Node->RemoteIpAddress, &RemoteIp, sizeof (EFI_IPv4_ADDRESS));\r | |
1201 | \r | |
1202 | Node->LocalPort = LocalPort;\r | |
1203 | Node->RemotePort = RemotePort;\r | |
1204 | \r | |
1205 | Node->Protocol = Protocol;\r | |
1206 | \r | |
1207 | if (!UseDefaultAddress) {\r | |
1208 | Node->StaticIpAddress = TRUE;\r | |
1209 | } else {\r | |
1210 | Node->StaticIpAddress = NetLibDefaultAddressIsStatic (Controller);\r | |
1211 | }\r | |
1212 | }\r | |
1213 | \r | |
1214 | \r | |
1215 | /**\r | |
1216 | Find the UNDI/SNP handle from controller and protocol GUID.\r | |
1217 | For example, IP will open a MNP child to transmit/receive\r | |
1218 | packets, when MNP is stopped, IP should also be stopped. IP\r | |
1219 | needs to find its own private data which is related the IP's\r | |
1220 | service binding instance that is install on UNDI/SNP handle.\r | |
1221 | Now, the controller is either a MNP or ARP child handle. But\r | |
1222 | IP opens these handle BY_DRIVER, use that info, we can get the\r | |
1223 | UNDI/SNP handle.\r | |
1224 | \r | |
1225 | @param Controller Then protocol handle to check\r | |
1226 | @param ProtocolGuid The protocol that is related with the handle.\r | |
1227 | \r | |
1228 | @return The UNDI/SNP handle or NULL.\r | |
1229 | \r | |
1230 | **/\r | |
1231 | EFI_HANDLE\r | |
1232 | NetLibGetNicHandle (\r | |
1233 | IN EFI_HANDLE Controller,\r | |
1234 | IN EFI_GUID *ProtocolGuid\r | |
1235 | )\r | |
1236 | {\r | |
1237 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenBuffer;\r | |
1238 | EFI_HANDLE Handle;\r | |
1239 | EFI_STATUS Status;\r | |
1240 | UINTN OpenCount;\r | |
1241 | UINTN Index;\r | |
1242 | \r | |
1243 | Status = gBS->OpenProtocolInformation (\r | |
1244 | Controller,\r | |
1245 | ProtocolGuid,\r | |
1246 | &OpenBuffer,\r | |
1247 | &OpenCount\r | |
1248 | );\r | |
1249 | \r | |
1250 | if (EFI_ERROR (Status)) {\r | |
1251 | return NULL;\r | |
1252 | }\r | |
1253 | \r | |
1254 | Handle = NULL;\r | |
1255 | \r | |
1256 | for (Index = 0; Index < OpenCount; Index++) {\r | |
1257 | if (OpenBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) {\r | |
1258 | Handle = OpenBuffer[Index].ControllerHandle;\r | |
1259 | break;\r | |
1260 | }\r | |
1261 | }\r | |
1262 | \r | |
1263 | gBS->FreePool (OpenBuffer);\r | |
1264 | return Handle;\r | |
1265 | }\r | |
1266 | \r | |
36ee91ca | 1267 | /**\r |
1268 | Add a Deferred Procedure Call to the end of the DPC queue.\r | |
1269 | \r | |
1270 | @DpcTpl The EFI_TPL that the DPC should be invoked.\r | |
1271 | @DpcProcedure Pointer to the DPC's function.\r | |
1272 | @DpcContext Pointer to the DPC's context. Passed to DpcProcedure\r | |
1273 | when DpcProcedure is invoked.\r | |
1274 | \r | |
1275 | @retval EFI_SUCCESS The DPC was queued.\r | |
1276 | @retval EFI_INVALID_PARAMETER DpcTpl is not a valid EFI_TPL.\r | |
1277 | DpcProcedure is NULL.\r | |
1278 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to\r | |
1279 | add the DPC to the queue.\r | |
1280 | \r | |
1281 | **/\r | |
1282 | EFI_STATUS\r | |
1283 | NetLibQueueDpc (\r | |
1284 | IN EFI_TPL DpcTpl,\r | |
1285 | IN EFI_DPC_PROCEDURE DpcProcedure,\r | |
1286 | IN VOID *DpcContext OPTIONAL\r | |
1287 | )\r | |
1288 | {\r | |
1289 | return mDpc->QueueDpc (mDpc, DpcTpl, DpcProcedure, DpcContext);\r | |
1290 | }\r | |
1291 | \r | |
1292 | /**\r | |
1293 | Add a Deferred Procedure Call to the end of the DPC queue.\r | |
1294 | \r | |
1295 | @retval EFI_SUCCESS One or more DPCs were invoked.\r | |
1296 | @retval EFI_NOT_FOUND No DPCs were invoked.\r | |
1297 | \r | |
1298 | **/\r | |
1299 | EFI_STATUS\r | |
1300 | NetLibDispatchDpc (\r | |
1301 | VOID\r | |
1302 | )\r | |
1303 | {\r | |
1304 | return mDpc->DispatchDpc(mDpc);\r | |
1305 | }\r | |
1306 | \r | |
1307 | \r | |
1308 | /**\r | |
1309 | The constructor function caches the pointer to DPC protocol.\r | |
1310 | \r | |
1311 | The constructor function locates DPC protocol from protocol database.\r | |
1312 | It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.\r | |
1313 | \r | |
1314 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
1315 | @param SystemTable A pointer to the EFI System Table.\r | |
1316 | \r | |
1317 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
1318 | \r | |
1319 | **/\r | |
1320 | EFI_STATUS\r | |
1321 | EFIAPI\r | |
1322 | NetLibConstructor (\r | |
1323 | IN EFI_HANDLE ImageHandle,\r | |
1324 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1325 | )\r | |
1326 | {\r | |
1327 | EFI_STATUS Status;\r | |
1328 | \r | |
1329 | Status = gBS->LocateProtocol (&gEfiDpcProtocolGuid, NULL, (VOID**) &mDpc);\r | |
1330 | ASSERT_EFI_ERROR (Status);\r | |
1331 | ASSERT (mDpc != NULL);\r | |
1332 | \r | |
1333 | return Status;\r | |
1334 | }\r |