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
|
/** @file
Capsule Library instance to process capsule images.
Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiDxe.h>
#include <Guid/Capsule.h>
#include <Guid/FmpCapsule.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/CapsuleLib.h>
#include <Library/GenericBdsLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/DevicePathLib.h>
#include <Protocol/FirmwareManagement.h>
#include <Protocol/DevicePath.h>
/**
Function indicate the current completion progress of the firmware
update. Platform may override with own specific progress function.
@param Completion A value between 1 and 100 indicating the current completion progress of the firmware update
@retval EFI_SUCESS Input capsule is a correct FMP capsule.
**/
EFI_STATUS
EFIAPI
Update_Image_Progress (
IN UINTN Completion
)
{
return EFI_SUCCESS;
}
/**
Validate Fmp capsules layout.
@param CapsuleHeader Points to a capsule header.
@retval EFI_SUCESS Input capsule is a correct FMP capsule.
@retval EFI_INVALID_PARAMETER Input capsule is not a correct FMP capsule.
**/
EFI_STATUS
ValidateFmpCapsule (
IN EFI_CAPSULE_HEADER *CapsuleHeader
)
{
EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER *FmpCapsuleHeader;
UINT8 *EndOfCapsule;
EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *ImageHeader;
UINT8 *EndOfPayload;
UINT64 *ItemOffsetList;
UINT32 ItemNum;
UINTN Index;
FmpCapsuleHeader = (EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER *) ((UINT8 *) CapsuleHeader + CapsuleHeader->HeaderSize);
EndOfCapsule = (UINT8 *) CapsuleHeader + CapsuleHeader->CapsuleImageSize;
if (FmpCapsuleHeader->Version > EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER_INIT_VERSION) {
return EFI_INVALID_PARAMETER;
}
ItemOffsetList = (UINT64 *)(FmpCapsuleHeader + 1);
ItemNum = FmpCapsuleHeader->EmbeddedDriverCount + FmpCapsuleHeader->PayloadItemCount;
if (ItemNum == FmpCapsuleHeader->EmbeddedDriverCount) {
//
// No payload element
//
if (((UINT8 *)FmpCapsuleHeader + ItemOffsetList[ItemNum - 1]) < EndOfCapsule) {
return EFI_SUCCESS;
} else {
return EFI_INVALID_PARAMETER;
}
}
if (FmpCapsuleHeader->PayloadItemCount != 0) {
//
// Check if the last payload is within capsule image range
//
ImageHeader = (EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *)((UINT8 *)FmpCapsuleHeader + ItemOffsetList[ItemNum - 1]);
EndOfPayload = (UINT8 *)(ImageHeader + 1) + ImageHeader->UpdateImageSize + ImageHeader->UpdateVendorCodeSize;
} else {
//
// No driver & payload element in FMP
//
EndOfPayload = (UINT8 *)(FmpCapsuleHeader + 1);
}
if (EndOfPayload != EndOfCapsule) {
return EFI_INVALID_PARAMETER;
}
//
// All the address in ItemOffsetList must be stored in ascending order
//
if (ItemNum >= 2) {
for (Index = 0; Index < ItemNum - 1; Index++) {
if (ItemOffsetList[Index] >= ItemOffsetList[Index + 1]) {
return EFI_INVALID_PARAMETER;
}
}
}
return EFI_SUCCESS;
}
/**
Process Firmware management protocol data capsule.
@param CapsuleHeader Points to a capsule header.
@retval EFI_SUCESS Process Capsule Image successfully.
@retval EFI_UNSUPPORTED Capsule image is not supported by the firmware.
@retval EFI_VOLUME_CORRUPTED FV volume in the capsule is corrupted.
@retval EFI_OUT_OF_RESOURCES Not enough memory.
**/
EFI_STATUS
ProcessFmpCapsuleImage (
IN EFI_CAPSULE_HEADER *CapsuleHeader
)
{
EFI_STATUS Status;
EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER *FmpCapsuleHeader;
UINT8 *EndOfCapsule;
EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *ImageHeader;
EFI_HANDLE ImageHandle;
UINT64 *ItemOffsetList;
UINT32 ItemNum;
UINTN Index;
UINTN ExitDataSize;
EFI_HANDLE *HandleBuffer;
EFI_FIRMWARE_MANAGEMENT_PROTOCOL *Fmp;
UINTN NumberOfHandles;
UINTN DescriptorSize;
UINT8 FmpImageInfoCount;
UINT32 FmpImageInfoDescriptorVer;
UINTN ImageInfoSize;
UINT32 PackageVersion;
CHAR16 *PackageVersionName;
CHAR16 *AbortReason;
EFI_FIRMWARE_IMAGE_DESCRIPTOR *FmpImageInfoBuf;
EFI_FIRMWARE_IMAGE_DESCRIPTOR *TempFmpImageInfo;
UINTN DriverLen;
UINTN Index1;
UINTN Index2;
MEMMAP_DEVICE_PATH MemMapNode;
EFI_DEVICE_PATH_PROTOCOL *DriverDevicePath;
Status = EFI_SUCCESS;
HandleBuffer = NULL;
ExitDataSize = 0;
DriverDevicePath = NULL;
FmpCapsuleHeader = (EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER *) ((UINT8 *) CapsuleHeader + CapsuleHeader->HeaderSize);
EndOfCapsule = (UINT8 *) CapsuleHeader + CapsuleHeader->CapsuleImageSize;
if (FmpCapsuleHeader->Version > EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER_INIT_VERSION) {
return EFI_INVALID_PARAMETER;
}
ItemOffsetList = (UINT64 *)(FmpCapsuleHeader + 1);
ItemNum = FmpCapsuleHeader->EmbeddedDriverCount + FmpCapsuleHeader->PayloadItemCount;
//
// capsule in which driver count and payload count are both zero is not processed.
//
if (ItemNum == 0) {
return EFI_SUCCESS;
}
//
// 1. ConnectAll to ensure
// All the communication protocol required by driver in capsule installed
// All FMP protocols are installed
//
BdsLibConnectAll();
//
// 2. Try to load & start all the drivers within capsule
//
SetDevicePathNodeLength (&MemMapNode.Header, sizeof (MemMapNode));
MemMapNode.Header.Type = HARDWARE_DEVICE_PATH;
MemMapNode.Header.SubType = HW_MEMMAP_DP;
MemMapNode.MemoryType = EfiBootServicesCode;
MemMapNode.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)CapsuleHeader;
MemMapNode.EndingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)((UINT8 *)CapsuleHeader + CapsuleHeader->CapsuleImageSize - 1);
DriverDevicePath = AppendDevicePathNode (NULL, &MemMapNode.Header);
if (DriverDevicePath == NULL) {
return EFI_OUT_OF_RESOURCES;
}
for (Index = 0; Index < FmpCapsuleHeader->EmbeddedDriverCount; Index++) {
if (FmpCapsuleHeader->PayloadItemCount == 0 && Index == (UINTN)FmpCapsuleHeader->EmbeddedDriverCount - 1) {
//
// When driver is last element in the ItemOffsetList array, the driver size is calculated by reference CapsuleImageSize in EFI_CAPSULE_HEADER
//
DriverLen = CapsuleHeader->CapsuleImageSize - CapsuleHeader->HeaderSize - (UINTN)ItemOffsetList[Index];
} else {
DriverLen = (UINTN)ItemOffsetList[Index + 1] - (UINTN)ItemOffsetList[Index];
}
Status = gBS->LoadImage(
FALSE,
gImageHandle,
DriverDevicePath,
(UINT8 *)FmpCapsuleHeader + ItemOffsetList[Index],
DriverLen,
&ImageHandle
);
if (EFI_ERROR(Status)) {
goto EXIT;
}
Status = gBS->StartImage(
ImageHandle,
&ExitDataSize,
NULL
);
if (EFI_ERROR(Status)) {
DEBUG ((DEBUG_ERROR, "Driver Return Status = %r\n", Status));
goto EXIT;
}
}
//
// Connnect all again to connect drivers within capsule
//
if (FmpCapsuleHeader->EmbeddedDriverCount > 0) {
BdsLibConnectAll();
}
//
// 3. Route payload to right FMP instance
//
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiFirmwareManagementProtocolGuid,
NULL,
&NumberOfHandles,
&HandleBuffer
);
if (!EFI_ERROR(Status)) {
for(Index1 = 0; Index1 < NumberOfHandles; Index1++) {
Status = gBS->HandleProtocol(
HandleBuffer[Index1],
&gEfiFirmwareManagementProtocolGuid,
(VOID **)&Fmp
);
if (EFI_ERROR(Status)) {
continue;
}
ImageInfoSize = 0;
Status = Fmp->GetImageInfo (
Fmp,
&ImageInfoSize,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
);
if (Status != EFI_BUFFER_TOO_SMALL) {
continue;
}
FmpImageInfoBuf = NULL;
FmpImageInfoBuf = AllocateZeroPool (ImageInfoSize);
if (FmpImageInfoBuf == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
PackageVersionName = NULL;
Status = Fmp->GetImageInfo (
Fmp,
&ImageInfoSize, // ImageInfoSize
FmpImageInfoBuf, // ImageInfo
&FmpImageInfoDescriptorVer, // DescriptorVersion
&FmpImageInfoCount, // DescriptorCount
&DescriptorSize, // DescriptorSize
&PackageVersion, // PackageVersion
&PackageVersionName // PackageVersionName
);
//
// If FMP GetInformation interface failed, skip this resource
//
if (EFI_ERROR(Status)) {
FreePool(FmpImageInfoBuf);
continue;
}
if (PackageVersionName != NULL) {
FreePool(PackageVersionName);
}
TempFmpImageInfo = FmpImageInfoBuf;
for (Index2 = 0; Index2 < FmpImageInfoCount; Index2++) {
//
// Check all the payload entry in capsule payload list
//
for (Index = FmpCapsuleHeader->EmbeddedDriverCount; Index < ItemNum; Index++) {
ImageHeader = (EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *)((UINT8 *)FmpCapsuleHeader + ItemOffsetList[Index]);
if (CompareGuid(&ImageHeader->UpdateImageTypeId, &TempFmpImageInfo->ImageTypeId) &&
ImageHeader->UpdateImageIndex == TempFmpImageInfo->ImageIndex) {
AbortReason = NULL;
if (ImageHeader->UpdateVendorCodeSize == 0) {
Status = Fmp->SetImage(
Fmp,
TempFmpImageInfo->ImageIndex, // ImageIndex
(UINT8 *)(ImageHeader + 1), // Image
ImageHeader->UpdateImageSize, // ImageSize
NULL, // VendorCode
Update_Image_Progress, // Progress
&AbortReason // AbortReason
);
} else {
Status = Fmp->SetImage(
Fmp,
TempFmpImageInfo->ImageIndex, // ImageIndex
(UINT8 *)(ImageHeader + 1), // Image
ImageHeader->UpdateImageSize, // ImageSize
(UINT8 *)((UINT8 *) (ImageHeader + 1) + ImageHeader->UpdateImageSize), // VendorCode
Update_Image_Progress, // Progress
&AbortReason // AbortReason
);
}
if (AbortReason != NULL) {
DEBUG ((EFI_D_ERROR, "%s\n", AbortReason));
FreePool(AbortReason);
}
}
}
//
// Use DescriptorSize to move ImageInfo Pointer to stay compatible with different ImageInfo version
//
TempFmpImageInfo = (EFI_FIRMWARE_IMAGE_DESCRIPTOR *)((UINT8 *)TempFmpImageInfo + DescriptorSize);
}
FreePool(FmpImageInfoBuf);
}
}
EXIT:
if (HandleBuffer != NULL) {
FreePool(HandleBuffer);
}
if (DriverDevicePath != NULL) {
FreePool(DriverDevicePath);
}
return Status;
}
/**
Those capsules supported by the firmwares.
@param CapsuleHeader Points to a capsule header.
@retval EFI_SUCESS Input capsule is supported by firmware.
@retval EFI_UNSUPPORTED Input capsule is not supported by the firmware.
@retval EFI_INVALID_PARAMETER Input capsule layout is not correct
**/
EFI_STATUS
EFIAPI
SupportCapsuleImage (
IN EFI_CAPSULE_HEADER *CapsuleHeader
)
{
if (CompareGuid (&gEfiCapsuleGuid, &CapsuleHeader->CapsuleGuid)) {
return EFI_SUCCESS;
}
if (CompareGuid (&gEfiFmpCapsuleGuid, &CapsuleHeader->CapsuleGuid)) {
//
// Check layout of FMP capsule
//
return ValidateFmpCapsule(CapsuleHeader);
}
return EFI_UNSUPPORTED;
}
/**
The firmware implements to process the capsule image.
@param CapsuleHeader Points to a capsule header.
@retval EFI_SUCESS Process Capsule Image successfully.
@retval EFI_UNSUPPORTED Capsule image is not supported by the firmware.
@retval EFI_VOLUME_CORRUPTED FV volume in the capsule is corrupted.
@retval EFI_OUT_OF_RESOURCES Not enough memory.
**/
EFI_STATUS
EFIAPI
ProcessCapsuleImage (
IN EFI_CAPSULE_HEADER *CapsuleHeader
)
{
UINT32 Length;
EFI_FIRMWARE_VOLUME_HEADER *FvImage;
EFI_FIRMWARE_VOLUME_HEADER *ProcessedFvImage;
EFI_STATUS Status;
EFI_HANDLE FvProtocolHandle;
UINT32 FvAlignment;
FvImage = NULL;
ProcessedFvImage = NULL;
Status = EFI_SUCCESS;
if (SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS) {
return EFI_UNSUPPORTED;
}
//
// Check FMP capsule layout
//
if (CompareGuid (&gEfiFmpCapsuleGuid, &CapsuleHeader->CapsuleGuid)){
Status = ValidateFmpCapsule(CapsuleHeader);
if (EFI_ERROR(Status)) {
return Status;
}
//
// Press EFI FMP Capsule
//
return ProcessFmpCapsuleImage(CapsuleHeader);
}
//
// Skip the capsule header, move to the Firware Volume
//
FvImage = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINT8 *) CapsuleHeader + CapsuleHeader->HeaderSize);
Length = CapsuleHeader->CapsuleImageSize - CapsuleHeader->HeaderSize;
while (Length != 0) {
//
// Point to the next firmware volume header, and then
// call the DXE service to process it.
//
if (FvImage->FvLength > (UINTN) Length) {
//
// Notes: need to stuff this status somewhere so that the
// error can be detected at OS runtime
//
Status = EFI_VOLUME_CORRUPTED;
break;
}
FvAlignment = 1 << ((FvImage->Attributes & EFI_FVB2_ALIGNMENT) >> 16);
//
// FvAlignment must be more than 8 bytes required by FvHeader structure.
//
if (FvAlignment < 8) {
FvAlignment = 8;
}
//
// Check FvImage Align is required.
//
if (((UINTN) FvImage % FvAlignment) == 0) {
ProcessedFvImage = FvImage;
} else {
//
// Allocate new aligned buffer to store FvImage.
//
ProcessedFvImage = (EFI_FIRMWARE_VOLUME_HEADER *) AllocateAlignedPages ((UINTN) EFI_SIZE_TO_PAGES ((UINTN) FvImage->FvLength), (UINTN) FvAlignment);
if (ProcessedFvImage == NULL) {
Status = EFI_OUT_OF_RESOURCES;
break;
}
CopyMem (ProcessedFvImage, FvImage, (UINTN) FvImage->FvLength);
}
Status = gDS->ProcessFirmwareVolume (
(VOID *) ProcessedFvImage,
(UINTN) ProcessedFvImage->FvLength,
&FvProtocolHandle
);
if (EFI_ERROR (Status)) {
break;
}
//
// Call the dispatcher to dispatch any drivers from the produced firmware volume
//
gDS->Dispatch ();
//
// On to the next FV in the capsule
//
Length -= (UINT32) FvImage->FvLength;
FvImage = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINT8 *) FvImage + FvImage->FvLength);
}
return Status;
}
|