OLD | NEW |
1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 * Use of this source code is governed by a BSD-style license that can be | 2 * Use of this source code is governed by a BSD-style license that can be |
3 * found in the LICENSE file. | 3 * found in the LICENSE file. |
4 * | 4 * |
5 * High-level firmware API for loading and verifying rewritable firmware. | 5 * High-level firmware API for loading and verifying rewritable firmware. |
6 * (Firmware portion) | 6 * (Firmware portion) |
7 */ | 7 */ |
8 | 8 |
9 #include "load_firmware_fw.h" | 9 #include "load_firmware_fw.h" |
10 | 10 |
11 #include "firmware_image_fw.h" | 11 #include "firmware_image_fw.h" |
12 #include "utility.h" | 12 #include "utility.h" |
13 | 13 |
14 | 14 |
15 static const char kFakeKernelBlob[] = "Fake kernel sign key blob"; | 15 static const char kFakeKernelBlob[2088] = "Fake kernel sign key blob"; |
16 | |
17 void UpdateFirmwareBodyHash(uint8_t* data, uint64_t size) { | |
18 /* TODO: actually update the hash. */ | |
19 } | |
20 | 16 |
21 | 17 |
22 int LoadFirmware(LoadFirmwareParams* params) { | 18 int LoadFirmware(LoadFirmwareParams* params) { |
23 /* TODO: real implementation! For now, this just chains to the old | 19 /* TODO: real implementation! This is now sufficiently broken due |
24 * implementation. */ | 20 * to refactoring that we'll just trust firmware A. */ |
25 | 21 params->kernel_sign_key_blob = (void *)kFakeKernelBlob; |
26 uint8_t* fw0; | |
27 uint8_t* fw1; | |
28 uint64_t len; | |
29 int rv; | |
30 | |
31 /* Get the firmware data */ | |
32 fw0 = GetFirmwareBody(0, &len); | |
33 fw1 = GetFirmwareBody(1, &len); | |
34 | |
35 /* Call the old firmware image driver */ | |
36 rv = VerifyFirmwareDriver_f(params->firmware_root_key_blob, | |
37 params->verification_block_0, | |
38 fw0, | |
39 params->verification_block_1, | |
40 fw1); | |
41 | |
42 /* Pass back a dummy key blob, since we can't extract the real | |
43 * kernel sign key blob yet */ | |
44 params->kernel_sign_key_blob = (void*)kFakeKernelBlob; | |
45 params->kernel_sign_key_size = sizeof(kFakeKernelBlob); | 22 params->kernel_sign_key_size = sizeof(kFakeKernelBlob); |
46 | 23 params->firmware_index = 0; |
47 switch(rv) { | 24 return LOAD_FIRMWARE_SUCCESS; |
48 case BOOT_FIRMWARE_A_CONTINUE: | |
49 params->firmware_index = 0; | |
50 return LOAD_FIRMWARE_SUCCESS; | |
51 case BOOT_FIRMWARE_B_CONTINUE: | |
52 params->firmware_index = 1; | |
53 return LOAD_FIRMWARE_SUCCESS; | |
54 } | |
55 | |
56 /* If we're still here, we failed */ | |
57 return LOAD_FIRMWARE_RECOVERY; | |
58 | |
59 } | 25 } |
OLD | NEW |