-
Notifications
You must be signed in to change notification settings - Fork 2.5k
/
Ip6ConfigImpl.c
2519 lines (2128 loc) · 79.8 KB
/
Ip6ConfigImpl.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/** @file
The implementation of EFI IPv6 Configuration Protocol.
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) Microsoft Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Ip6Impl.h"
LIST_ENTRY mIp6ConfigInstanceList = { &mIp6ConfigInstanceList, &mIp6ConfigInstanceList };
/**
The event process routine when the DHCPv6 service binding protocol is installed
in the system.
@param[in] Event Not used.
@param[in] Context Pointer to the IP6 config instance data.
**/
VOID
EFIAPI
Ip6ConfigOnDhcp6SbInstalled (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Update the current policy to NewPolicy. During the transition
period, the default router list, on-link prefix list, autonomous prefix list
and address list in all interfaces will be released.
@param[in] IpSb The IP6 service binding instance.
@param[in] NewPolicy The new policy to be updated to.
**/
VOID
Ip6ConfigOnPolicyChanged (
IN IP6_SERVICE *IpSb,
IN EFI_IP6_CONFIG_POLICY NewPolicy
)
{
LIST_ENTRY *Entry;
LIST_ENTRY *Entry2;
LIST_ENTRY *Next;
IP6_INTERFACE *IpIf;
IP6_DAD_ENTRY *DadEntry;
IP6_DELAY_JOIN_LIST *DelayNode;
IP6_ADDRESS_INFO *AddrInfo;
IP6_PROTOCOL *Instance;
BOOLEAN Recovery;
Recovery = FALSE;
//
// Currently there are only two policies: Manual and Automatic. Regardless of
// what transition is going on, i.e., Manual -> Automatic and Automatic ->
// Manual, we have to free default router list, on-link prefix list, autonomous
// prefix list, address list in all the interfaces and destroy any IPv6 child
// instance whose local IP is neither 0 nor the link-local address.
//
Ip6CleanDefaultRouterList (IpSb);
Ip6CleanPrefixListTable (IpSb, &IpSb->OnlinkPrefix);
Ip6CleanPrefixListTable (IpSb, &IpSb->AutonomousPrefix);
//
// It's tricky... If the LinkLocal address is O.K., add back the link-local
// prefix to the on-link prefix table.
//
if (IpSb->LinkLocalOk) {
Ip6CreatePrefixListEntry (
IpSb,
TRUE,
(UINT32)IP6_INFINIT_LIFETIME,
(UINT32)IP6_INFINIT_LIFETIME,
IP6_LINK_LOCAL_PREFIX_LENGTH,
&IpSb->LinkLocalAddr
);
}
if (!IsListEmpty (&IpSb->DefaultInterface->AddressList) && (IpSb->DefaultInterface->AddressCount > 0)) {
//
// If any IPv6 children (Instance) in configured state and use global unicast address, it will be
// destroyed in Ip6RemoveAddr() function later. Then, the upper layer driver's Stop() function will be
// called, which may break the upper layer network stacks. So, the driver should take the responsibility
// for the recovery by using ConnectController() after Ip6RemoveAddr().
// Here, just check whether need to recover the upper layer network stacks later.
//
NET_LIST_FOR_EACH (Entry, &IpSb->DefaultInterface->AddressList) {
AddrInfo = NET_LIST_USER_STRUCT_S (Entry, IP6_ADDRESS_INFO, Link, IP6_ADDR_INFO_SIGNATURE);
if (!IsListEmpty (&IpSb->Children)) {
NET_LIST_FOR_EACH (Entry2, &IpSb->Children) {
Instance = NET_LIST_USER_STRUCT_S (Entry2, IP6_PROTOCOL, Link, IP6_PROTOCOL_SIGNATURE);
if ((Instance->State == IP6_STATE_CONFIGED) && EFI_IP6_EQUAL (&Instance->ConfigData.StationAddress, &AddrInfo->Address)) {
Recovery = TRUE;
break;
}
}
}
}
//
// All IPv6 children that use global unicast address as its source address
// should be destroyed now. The survivers are those use the link-local address
// or the unspecified address as the source address.
// TODO: Conduct a check here.
Ip6RemoveAddr (
IpSb,
&IpSb->DefaultInterface->AddressList,
&IpSb->DefaultInterface->AddressCount,
NULL,
0
);
if ((IpSb->Controller != NULL) && Recovery) {
//
// ConnectController() to recover the upper layer network stacks.
//
gBS->ConnectController (IpSb->Controller, NULL, NULL, TRUE);
}
}
NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
//
// remove all pending delay node and DAD entries for the global addresses.
//
IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DelayJoinList) {
DelayNode = NET_LIST_USER_STRUCT (Entry2, IP6_DELAY_JOIN_LIST, Link);
if (!NetIp6IsLinkLocalAddr (&DelayNode->AddressInfo->Address)) {
RemoveEntryList (&DelayNode->Link);
FreePool (DelayNode);
}
}
NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DupAddrDetectList) {
DadEntry = NET_LIST_USER_STRUCT_S (Entry2, IP6_DAD_ENTRY, Link, IP6_DAD_ENTRY_SIGNATURE);
if (!NetIp6IsLinkLocalAddr (&DadEntry->AddressInfo->Address)) {
//
// Fail this DAD entry if the address is not link-local.
//
Ip6OnDADFinished (FALSE, IpIf, DadEntry);
}
}
}
if (NewPolicy == Ip6ConfigPolicyAutomatic) {
//
// Set parameters to trigger router solicitation sending in timer handler.
//
IpSb->RouterAdvertiseReceived = FALSE;
IpSb->SolicitTimer = IP6_MAX_RTR_SOLICITATIONS;
//
// delay 1 second
//
IpSb->Ticks = (UINT32)IP6_GET_TICKS (IP6_ONE_SECOND_IN_MS);
}
}
/**
The work function to trigger the DHCPv6 process to perform a stateful autoconfiguration.
@param[in] Instance Pointer to the IP6 config instance data.
@param[in] OtherInfoOnly If FALSE, get stateful address and other information
via DHCPv6. Otherwise, only get the other information.
@retval EFI_SUCCESS The operation finished successfully.
@retval EFI_UNSUPPORTED The DHCP6 driver is not available.
**/
EFI_STATUS
Ip6ConfigStartStatefulAutoConfig (
IN IP6_CONFIG_INSTANCE *Instance,
IN BOOLEAN OtherInfoOnly
)
{
EFI_STATUS Status;
IP6_SERVICE *IpSb;
EFI_DHCP6_CONFIG_DATA Dhcp6CfgData;
EFI_DHCP6_PROTOCOL *Dhcp6;
EFI_DHCP6_PACKET_OPTION *OptList[1];
UINT16 OptBuf[4];
EFI_DHCP6_PACKET_OPTION *Oro;
EFI_DHCP6_RETRANSMISSION InfoReqReXmit;
//
// A host must not invoke stateful address configuration if it is already
// participating in the statuful protocol as a result of an earlier advertisement.
//
if (Instance->Dhcp6Handle != NULL) {
return EFI_SUCCESS;
}
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
Instance->OtherInfoOnly = OtherInfoOnly;
Status = NetLibCreateServiceChild (
IpSb->Controller,
IpSb->Image,
&gEfiDhcp6ServiceBindingProtocolGuid,
&Instance->Dhcp6Handle
);
if (Status == EFI_UNSUPPORTED) {
//
// No DHCPv6 Service Binding protocol, register a notify.
//
if (Instance->Dhcp6SbNotifyEvent == NULL) {
Instance->Dhcp6SbNotifyEvent = EfiCreateProtocolNotifyEvent (
&gEfiDhcp6ServiceBindingProtocolGuid,
TPL_CALLBACK,
Ip6ConfigOnDhcp6SbInstalled,
(VOID *)Instance,
&Instance->Registration
);
}
}
if (EFI_ERROR (Status)) {
return Status;
}
if (Instance->Dhcp6SbNotifyEvent != NULL) {
gBS->CloseEvent (Instance->Dhcp6SbNotifyEvent);
}
Status = gBS->OpenProtocol (
Instance->Dhcp6Handle,
&gEfiDhcp6ProtocolGuid,
(VOID **)&Instance->Dhcp6,
IpSb->Image,
IpSb->Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
ASSERT_EFI_ERROR (Status);
Dhcp6 = Instance->Dhcp6;
Dhcp6->Configure (Dhcp6, NULL);
//
// Set the exta options to send. Here we only want the option request option
// with DNS SERVERS.
//
Oro = (EFI_DHCP6_PACKET_OPTION *)OptBuf;
Oro->OpCode = HTONS (DHCP6_OPT_ORO);
Oro->OpLen = HTONS (2);
*((UINT16 *)&Oro->Data[0]) = HTONS (DHCP6_OPT_DNS_SERVERS);
OptList[0] = Oro;
Status = EFI_SUCCESS;
if (!OtherInfoOnly) {
//
// Get stateful address and other information via DHCPv6.
//
Dhcp6CfgData.Dhcp6Callback = NULL;
Dhcp6CfgData.CallbackContext = NULL;
Dhcp6CfgData.OptionCount = 1;
Dhcp6CfgData.OptionList = &OptList[0];
Dhcp6CfgData.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;
Dhcp6CfgData.IaDescriptor.IaId = Instance->IaId;
Dhcp6CfgData.IaInfoEvent = Instance->Dhcp6Event;
Dhcp6CfgData.ReconfigureAccept = FALSE;
Dhcp6CfgData.RapidCommit = FALSE;
Dhcp6CfgData.SolicitRetransmission = NULL;
Status = Dhcp6->Configure (Dhcp6, &Dhcp6CfgData);
if (!EFI_ERROR (Status)) {
if (IpSb->LinkLocalOk) {
Status = Dhcp6->Start (Dhcp6);
} else {
IpSb->Dhcp6NeedStart = TRUE;
}
}
} else {
//
// Only get other information via DHCPv6, this doesn't require a config
// action.
//
InfoReqReXmit.Irt = 4;
InfoReqReXmit.Mrc = 64;
InfoReqReXmit.Mrt = 60;
InfoReqReXmit.Mrd = 0;
if (IpSb->LinkLocalOk) {
Status = Dhcp6->InfoRequest (
Dhcp6,
TRUE,
Oro,
0,
NULL,
&InfoReqReXmit,
Instance->Dhcp6Event,
Ip6ConfigOnDhcp6Reply,
Instance
);
} else {
IpSb->Dhcp6NeedInfoRequest = TRUE;
}
}
return Status;
}
/**
Signal the registered event. It is the callback routine for NetMapIterate.
@param[in] Map Points to the list of registered event.
@param[in] Item The registered event.
@param[in] Arg Not used.
**/
EFI_STATUS
EFIAPI
Ip6ConfigSignalEvent (
IN NET_MAP *Map,
IN NET_MAP_ITEM *Item,
IN VOID *Arg
)
{
gBS->SignalEvent ((EFI_EVENT)Item->Key);
return EFI_SUCCESS;
}
/**
Read the configuration data from variable storage according to the VarName and
gEfiIp6ConfigProtocolGuid. It checks the integrity of variable data. If the
data is corrupted, it clears the variable data to ZERO. Otherwise, it outputs the
configuration data to IP6_CONFIG_INSTANCE.
@param[in] VarName The pointer to the variable name
@param[in, out] Instance The pointer to the IP6 config instance data.
@retval EFI_NOT_FOUND The variable can not be found or already corrupted.
@retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
@retval EFI_SUCCESS The configuration data was retrieved successfully.
**/
EFI_STATUS
Ip6ConfigReadConfigData (
IN CHAR16 *VarName,
IN OUT IP6_CONFIG_INSTANCE *Instance
)
{
EFI_STATUS Status;
UINTN VarSize;
IP6_CONFIG_VARIABLE *Variable;
IP6_CONFIG_DATA_ITEM *DataItem;
UINTN Index;
IP6_CONFIG_DATA_RECORD DataRecord;
CHAR8 *Data;
//
// Try to read the configuration variable.
//
VarSize = 0;
Status = gRT->GetVariable (
VarName,
&gEfiIp6ConfigProtocolGuid,
NULL,
&VarSize,
NULL
);
if (Status == EFI_BUFFER_TOO_SMALL) {
//
// Allocate buffer and read the config variable.
//
Variable = AllocatePool (VarSize);
if (Variable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = gRT->GetVariable (
VarName,
&gEfiIp6ConfigProtocolGuid,
NULL,
&VarSize,
Variable
);
if (EFI_ERROR (Status) || ((UINT16)(~NetblockChecksum ((UINT8 *)Variable, (UINT32)VarSize)) != 0)) {
//
// GetVariable error or the variable is corrupted.
//
goto Error;
}
//
// Get the IAID we use.
//
Instance->IaId = Variable->IaId;
for (Index = 0; Index < Variable->DataRecordCount; Index++) {
CopyMem (&DataRecord, &Variable->DataRecord[Index], sizeof (DataRecord));
DataItem = &Instance->DataItem[DataRecord.DataType];
if (DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED) &&
(DataItem->DataSize != DataRecord.DataSize)
)
{
//
// Perhaps a corrupted data record...
//
continue;
}
if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED)) {
//
// This data item has variable length data.
// Check that the length is contained within the variable before allocating.
//
if (DataRecord.DataSize > VarSize - DataRecord.Offset) {
goto Error;
}
DataItem->Data.Ptr = AllocatePool (DataRecord.DataSize);
if (DataItem->Data.Ptr == NULL) {
//
// no memory resource
//
continue;
}
}
Data = (CHAR8 *)Variable + DataRecord.Offset;
CopyMem (DataItem->Data.Ptr, Data, DataRecord.DataSize);
DataItem->DataSize = DataRecord.DataSize;
DataItem->Status = EFI_SUCCESS;
}
FreePool (Variable);
return EFI_SUCCESS;
}
return Status;
Error:
//
// Fall back to the default value.
//
if (Variable != NULL) {
FreePool (Variable);
}
//
// Remove the problematic variable and return EFI_NOT_FOUND, a new
// variable will be set again.
//
gRT->SetVariable (
VarName,
&gEfiIp6ConfigProtocolGuid,
IP6_CONFIG_VARIABLE_ATTRIBUTE,
0,
NULL
);
return EFI_NOT_FOUND;
}
/**
Write the configuration data from IP6_CONFIG_INSTANCE to variable storage.
@param[in] VarName The pointer to the variable name.
@param[in] Instance The pointer to the IP6 configuration instance data.
@retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
@retval EFI_SUCCESS The configuration data is written successfully.
**/
EFI_STATUS
Ip6ConfigWriteConfigData (
IN CHAR16 *VarName,
IN IP6_CONFIG_INSTANCE *Instance
)
{
UINTN Index;
UINTN VarSize;
IP6_CONFIG_DATA_ITEM *DataItem;
IP6_CONFIG_VARIABLE *Variable;
IP6_CONFIG_DATA_RECORD *DataRecord;
CHAR8 *Heap;
EFI_STATUS Status;
VarSize = sizeof (IP6_CONFIG_VARIABLE) - sizeof (IP6_CONFIG_DATA_RECORD);
for (Index = 0; Index < Ip6ConfigDataTypeMaximum; Index++) {
DataItem = &Instance->DataItem[Index];
if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_VOLATILE) && !EFI_ERROR (DataItem->Status)) {
VarSize += sizeof (IP6_CONFIG_DATA_RECORD) + DataItem->DataSize;
}
}
Variable = AllocatePool (VarSize);
if (Variable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Variable->IaId = Instance->IaId;
Heap = (CHAR8 *)Variable + VarSize;
Variable->DataRecordCount = 0;
for (Index = 0; Index < Ip6ConfigDataTypeMaximum; Index++) {
DataItem = &Instance->DataItem[Index];
if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_VOLATILE) && !EFI_ERROR (DataItem->Status)) {
Heap -= DataItem->DataSize;
CopyMem (Heap, DataItem->Data.Ptr, DataItem->DataSize);
DataRecord = &Variable->DataRecord[Variable->DataRecordCount];
DataRecord->DataType = (EFI_IP6_CONFIG_DATA_TYPE)Index;
DataRecord->DataSize = (UINT32)DataItem->DataSize;
DataRecord->Offset = (UINT16)(Heap - (CHAR8 *)Variable);
Variable->DataRecordCount++;
}
}
Variable->Checksum = 0;
Variable->Checksum = (UINT16) ~NetblockChecksum ((UINT8 *)Variable, (UINT32)VarSize);
Status = gRT->SetVariable (
VarName,
&gEfiIp6ConfigProtocolGuid,
IP6_CONFIG_VARIABLE_ATTRIBUTE,
VarSize,
Variable
);
FreePool (Variable);
return Status;
}
/**
The work function for EfiIp6ConfigGetData() to get the interface information
of the communication device this IP6Config instance manages.
@param[in] Instance Pointer to the IP6 config instance data.
@param[in, out] DataSize On input, in bytes, the size of Data. On output, in
bytes, the size of buffer required to store the specified
configuration data.
@param[in] Data The data buffer in which the configuration data is returned.
Ignored if DataSize is ZERO.
@retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified
configuration data, and the required size is
returned in DataSize.
@retval EFI_SUCCESS The specified configuration data was obtained.
**/
EFI_STATUS
Ip6ConfigGetIfInfo (
IN IP6_CONFIG_INSTANCE *Instance,
IN OUT UINTN *DataSize,
IN VOID *Data OPTIONAL
)
{
IP6_SERVICE *IpSb;
UINTN Length;
IP6_CONFIG_DATA_ITEM *Item;
EFI_IP6_CONFIG_INTERFACE_INFO *IfInfo;
UINT32 AddressCount;
UINT32 RouteCount;
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
Length = sizeof (EFI_IP6_CONFIG_INTERFACE_INFO);
//
// Calculate the required length, add the buffer size for AddressInfo and
// RouteTable
//
Ip6BuildEfiAddressList (IpSb, &AddressCount, NULL);
Ip6BuildEfiRouteTable (IpSb->RouteTable, &RouteCount, NULL);
Length += AddressCount * sizeof (EFI_IP6_ADDRESS_INFO) + RouteCount * sizeof (EFI_IP6_ROUTE_TABLE);
if (*DataSize < Length) {
*DataSize = Length;
return EFI_BUFFER_TOO_SMALL;
}
//
// Copy the fixed size part of the interface info.
//
Item = &Instance->DataItem[Ip6ConfigDataTypeInterfaceInfo];
IfInfo = (EFI_IP6_CONFIG_INTERFACE_INFO *)Data;
CopyMem (IfInfo, Item->Data.Ptr, sizeof (EFI_IP6_CONFIG_INTERFACE_INFO));
//
// AddressInfo
//
IfInfo->AddressInfo = (EFI_IP6_ADDRESS_INFO *)(IfInfo + 1);
Ip6BuildEfiAddressList (IpSb, &IfInfo->AddressInfoCount, &IfInfo->AddressInfo);
//
// RouteTable
//
IfInfo->RouteTable = (EFI_IP6_ROUTE_TABLE *)(IfInfo->AddressInfo + IfInfo->AddressInfoCount);
Ip6BuildEfiRouteTable (IpSb->RouteTable, &IfInfo->RouteCount, &IfInfo->RouteTable);
if (IfInfo->AddressInfoCount == 0) {
IfInfo->AddressInfo = NULL;
}
if (IfInfo->RouteCount == 0) {
IfInfo->RouteTable = NULL;
}
return EFI_SUCCESS;
}
/**
The work function for EfiIp6ConfigSetData() to set the alternative interface ID
for the communication device managed by this IP6Config instance, if the link local
IPv6 addresses generated from the interface ID based on the default source the
EFI IPv6 Protocol uses is a duplicate address.
@param[in] Instance Pointer to the IP6 configuration instance data.
@param[in] DataSize Size of the buffer pointed to by Data in bytes.
@param[in] Data The data buffer to set.
@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type,
8 bytes.
@retval EFI_SUCCESS The specified configuration data for the EFI IPv6
network stack was set.
**/
EFI_STATUS
Ip6ConfigSetAltIfId (
IN IP6_CONFIG_INSTANCE *Instance,
IN UINTN DataSize,
IN VOID *Data
)
{
EFI_IP6_CONFIG_INTERFACE_ID *OldIfId;
EFI_IP6_CONFIG_INTERFACE_ID *NewIfId;
IP6_CONFIG_DATA_ITEM *DataItem;
if (DataSize != sizeof (EFI_IP6_CONFIG_INTERFACE_ID)) {
return EFI_BAD_BUFFER_SIZE;
}
DataItem = &Instance->DataItem[Ip6ConfigDataTypeAltInterfaceId];
OldIfId = DataItem->Data.AltIfId;
NewIfId = (EFI_IP6_CONFIG_INTERFACE_ID *)Data;
CopyMem (OldIfId, NewIfId, DataSize);
DataItem->Status = EFI_SUCCESS;
return EFI_SUCCESS;
}
/**
The work function for EfiIp6ConfigSetData() to set the general configuration
policy for the EFI IPv6 network stack that is running on the communication device
managed by this IP6Config instance. The policy will affect other configuration settings.
@param[in] Instance Pointer to the IP6 config instance data.
@param[in] DataSize Size of the buffer pointed to by Data in bytes.
@param[in] Data The data buffer to set.
@retval EFI_INVALID_PARAMETER The to be set policy is invalid.
@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
@retval EFI_ABORTED The new policy equals the current policy.
@retval EFI_SUCCESS The specified configuration data for the EFI IPv6
network stack was set.
**/
EFI_STATUS
Ip6ConfigSetPolicy (
IN IP6_CONFIG_INSTANCE *Instance,
IN UINTN DataSize,
IN VOID *Data
)
{
EFI_IP6_CONFIG_POLICY NewPolicy;
IP6_CONFIG_DATA_ITEM *DataItem;
IP6_SERVICE *IpSb;
if (DataSize != sizeof (EFI_IP6_CONFIG_POLICY)) {
return EFI_BAD_BUFFER_SIZE;
}
NewPolicy = *((EFI_IP6_CONFIG_POLICY *)Data);
if (NewPolicy > Ip6ConfigPolicyAutomatic) {
return EFI_INVALID_PARAMETER;
}
if (NewPolicy == Instance->Policy) {
return EFI_ABORTED;
} else {
//
// Clean the ManualAddress, Gateway and DnsServers, shrink the variable
// data size, and fire up all the related events.
//
DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
if (DataItem->Data.Ptr != NULL) {
FreePool (DataItem->Data.Ptr);
}
DataItem->Data.Ptr = NULL;
DataItem->DataSize = 0;
DataItem->Status = EFI_NOT_FOUND;
NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
DataItem = &Instance->DataItem[Ip6ConfigDataTypeGateway];
if (DataItem->Data.Ptr != NULL) {
FreePool (DataItem->Data.Ptr);
}
DataItem->Data.Ptr = NULL;
DataItem->DataSize = 0;
DataItem->Status = EFI_NOT_FOUND;
NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
DataItem = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
DataItem->Data.Ptr = NULL;
DataItem->DataSize = 0;
DataItem->Status = EFI_NOT_FOUND;
NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
if (NewPolicy == Ip6ConfigPolicyManual) {
//
// The policy is changed from automatic to manual. Stop the DHCPv6 process
// and destroy the DHCPv6 child.
//
if (Instance->Dhcp6Handle != NULL) {
Ip6ConfigDestroyDhcp6 (Instance);
}
}
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
Ip6ConfigOnPolicyChanged (IpSb, NewPolicy);
Instance->Policy = NewPolicy;
return EFI_SUCCESS;
}
}
/**
The work function for EfiIp6ConfigSetData() to set the number of consecutive
Neighbor Solicitation messages sent while performing Duplicate Address Detection
on a tentative address. A value of ZERO indicates that Duplicate Address Detection
will not be performed on a tentative address.
@param[in] Instance The Instance Pointer to the IP6 config instance data.
@param[in] DataSize Size of the buffer pointed to by Data in bytes.
@param[in] Data The data buffer to set.
@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
@retval EFI_ABORTED The new transmit count equals the current configuration.
@retval EFI_SUCCESS The specified configuration data for the EFI IPv6
network stack was set.
**/
EFI_STATUS
Ip6ConfigSetDadXmits (
IN IP6_CONFIG_INSTANCE *Instance,
IN UINTN DataSize,
IN VOID *Data
)
{
EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS *OldDadXmits;
if (DataSize != sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS)) {
return EFI_BAD_BUFFER_SIZE;
}
OldDadXmits = Instance->DataItem[Ip6ConfigDataTypeDupAddrDetectTransmits].Data.DadXmits;
if ((*(UINT32 *)Data) == OldDadXmits->DupAddrDetectTransmits) {
return EFI_ABORTED;
} else {
OldDadXmits->DupAddrDetectTransmits = *((UINT32 *)Data);
return EFI_SUCCESS;
}
}
/**
The callback function for Ip6SetAddr. The prototype is defined
as IP6_DAD_CALLBACK. It is called after Duplicate Address Detection is performed
for the manual address set by Ip6ConfigSetManualAddress.
@param[in] IsDadPassed If TRUE, Duplicate Address Detection passed.
@param[in] TargetAddress The tentative IPv6 address to be checked.
@param[in] Context Pointer to the IP6 configuration instance data.
**/
VOID
Ip6ManualAddrDadCallback (
IN BOOLEAN IsDadPassed,
IN EFI_IPv6_ADDRESS *TargetAddress,
IN VOID *Context
)
{
IP6_CONFIG_INSTANCE *Instance;
UINTN Index;
IP6_CONFIG_DATA_ITEM *Item;
EFI_IP6_CONFIG_MANUAL_ADDRESS *ManualAddr;
EFI_IP6_CONFIG_MANUAL_ADDRESS *PassedAddr;
UINTN DadPassCount;
UINTN DadFailCount;
IP6_SERVICE *IpSb;
Instance = (IP6_CONFIG_INSTANCE *)Context;
NET_CHECK_SIGNATURE (Instance, IP6_CONFIG_INSTANCE_SIGNATURE);
Item = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
ManualAddr = NULL;
if (Item->DataSize == 0) {
return;
}
for (Index = 0; Index < Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS); Index++) {
//
// Find the original tag used to place into the NET_MAP.
//
ManualAddr = Item->Data.ManualAddress + Index;
if (EFI_IP6_EQUAL (TargetAddress, &ManualAddr->Address)) {
break;
}
}
ASSERT (Index != Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
if (IsDadPassed) {
NetMapInsertTail (&Instance->DadPassedMap, ManualAddr, NULL);
} else {
NetMapInsertTail (&Instance->DadFailedMap, ManualAddr, NULL);
}
DadPassCount = NetMapGetCount (&Instance->DadPassedMap);
DadFailCount = NetMapGetCount (&Instance->DadFailedMap);
if ((DadPassCount + DadFailCount) == (Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS))) {
//
// All addresses have finished the configuration process.
//
if (DadFailCount != 0) {
//
// There is at least one duplicate address.
//
FreePool (Item->Data.Ptr);
Item->DataSize = DadPassCount * sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS);
if (Item->DataSize == 0) {
//
// All failed, bad luck.
//
Item->Data.Ptr = NULL;
Item->Status = EFI_NOT_FOUND;
} else {
//
// Part of addresses are detected to be duplicates, so update the
// data with those passed.
//
PassedAddr = (EFI_IP6_CONFIG_MANUAL_ADDRESS *)AllocatePool (Item->DataSize);
ASSERT (PassedAddr != NULL);
Item->Data.Ptr = PassedAddr;
Item->Status = EFI_SUCCESS;
while (!NetMapIsEmpty (&Instance->DadPassedMap)) {
ManualAddr = (EFI_IP6_CONFIG_MANUAL_ADDRESS *)NetMapRemoveHead (&Instance->DadPassedMap, NULL);
CopyMem (PassedAddr, ManualAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
PassedAddr++;
}
ASSERT ((UINTN)PassedAddr - (UINTN)Item->Data.Ptr == Item->DataSize);
}
} else {
//
// All addresses are valid.
//
Item->Status = EFI_SUCCESS;
}
//
// Remove the tags we put in the NET_MAPs.
//
while (!NetMapIsEmpty (&Instance->DadFailedMap)) {
NetMapRemoveHead (&Instance->DadFailedMap, NULL);
}
while (!NetMapIsEmpty (&Instance->DadPassedMap)) {
NetMapRemoveHead (&Instance->DadPassedMap, NULL);
}
//
// Signal the waiting events.
//
NetMapIterate (&Item->EventMap, Ip6ConfigSignalEvent, NULL);
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
Ip6ConfigWriteConfigData (IpSb->MacString, Instance);
}
}
/**
The work function for EfiIp6ConfigSetData() to set the station addresses manually
for the EFI IPv6 network stack. It is only configurable when the policy is
Ip6ConfigPolicyManual.
@param[in] Instance Pointer to the IP6 configuration instance data.
@param[in] DataSize Size of the buffer pointed to by Data in bytes.
@param[in] Data The data buffer to set.
@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
@retval EFI_WRITE_PROTECTED The specified configuration data cannot be set
under the current policy.
@retval EFI_INVALID_PARAMETER One or more fields in Data is invalid.
@retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
@retval EFI_NOT_READY An asynchronous process is invoked to set the specified
configuration data, and the process is not finished.
@retval EFI_ABORTED The manual addresses to be set equal current
configuration.
@retval EFI_SUCCESS The specified configuration data for the EFI IPv6
network stack was set.
**/
EFI_STATUS
Ip6ConfigSetManualAddress (
IN IP6_CONFIG_INSTANCE *Instance,
IN UINTN DataSize,
IN VOID *Data
)
{
EFI_IP6_CONFIG_MANUAL_ADDRESS *NewAddress;
EFI_IP6_CONFIG_MANUAL_ADDRESS *TmpAddress;
IP6_CONFIG_DATA_ITEM *DataItem;
UINTN NewAddressCount;
UINTN Index1;
UINTN Index2;
IP6_SERVICE *IpSb;
IP6_ADDRESS_INFO *CurrentAddrInfo;
IP6_ADDRESS_INFO *Copy;
LIST_ENTRY CurrentSourceList;
UINT32 CurrentSourceCount;
LIST_ENTRY *Entry;
LIST_ENTRY *Entry2;
IP6_INTERFACE *IpIf;
IP6_PREFIX_LIST_ENTRY *PrefixEntry;
EFI_STATUS Status;
BOOLEAN IsUpdated;
LIST_ENTRY *Next;
IP6_DAD_ENTRY *DadEntry;
IP6_DELAY_JOIN_LIST *DelayNode;
NewAddress = NULL;
TmpAddress = NULL;
CurrentAddrInfo = NULL;
Copy = NULL;
Entry = NULL;
Entry2 = NULL;
IpIf = NULL;
PrefixEntry = NULL;
Next = NULL;
DadEntry = NULL;
DelayNode = NULL;
Status = EFI_SUCCESS;
ASSERT (Instance->DataItem[Ip6ConfigDataTypeManualAddress].Status != EFI_NOT_READY);
if ((DataSize != 0) && ((DataSize % sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS)) != 0)) {
return EFI_BAD_BUFFER_SIZE;
}
if (Instance->Policy != Ip6ConfigPolicyManual) {
return EFI_WRITE_PROTECTED;
}
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
if ((Data != NULL) && (DataSize != 0)) {
NewAddressCount = DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS);
NewAddress = (EFI_IP6_CONFIG_MANUAL_ADDRESS *)Data;
for (Index1 = 0; Index1 < NewAddressCount; Index1++, NewAddress++) {
if (NetIp6IsLinkLocalAddr (&NewAddress->Address) ||
!NetIp6IsValidUnicast (&NewAddress->Address) ||
(NewAddress->PrefixLength > 128)
)
{
//
// make sure the IPv6 address is unicast and not link-local address &&
// the prefix length is valid.
//
return EFI_INVALID_PARAMETER;
}