Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Tue, 25 Jun 2019 07:21:06 GMT

Hi,

[quote user="MalikRehan"]I'm using SES, with SES it's hard to get all the logs. I'll try though.[/quote]

You can use for instance J-Link RTT Logger to generate a log.

[quote user="MalikRehan"]I have created one private ticket with case ID : 231391, i have uploaded source code there.[/quote]

Perfect. Then I suggest we continue in that case.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

MahammadMalikRihan — Tue, 25 Jun 2019 06:58:14 GMT

Hi Einar,

[quote userid="7377" url="~/f/nordic-q-a/48750/hash-validation-failure-when-dfu-package-transferred-manually-nrf_dfu_validation-hash-verification-failed/194460"]Can you upload logs from the bootloader (with RTT debug logging enabled)[/quote]

I'm using SES, with SES it's hard to get all the logs. I'll try though.

I have created one private ticket with case ID : 231391, i have uploaded source code there.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Mon, 24 Jun 2019 18:53:03 GMT

Hi,

The last part of the log is:

2:NRF_DFU_OP_OBJECT_EXECUTE Complete 60 4 B

0xB is NRF_DFU_RES_CODE_EXT_ERROR, so we need to look at the next byte, which we see from the log with UART traffic:

[STM] <-- [ 96, 4, 11, 12,  ]

This is the same response (though it looks different since the numbers are decimal here), and we see that the fourth byte is 12 = 0xC = NRF_DFU_EXT_ERROR_VERIFICATION_FAILED.

I am not able to see exactly what happened though, but I will continue to look into it tomorrow.

In the meantime,

Can you provide any more information about this issue?
Do you always get this issue when using your DFU master implementation, or just some times?
Can you share your DFU master code?
Can you upload logs from the bootloader (with RTT debug logging enabled)

(Updated with more questions since initial posting)

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

MahammadMalikRihan — Mon, 24 Jun 2019 10:04:34 GMT

Hi,

I have uploaded the UART dumps from STM32 and PC(nrfutil), Please find those below

/cfs-file/__key/communityserver-discussions-components-files/4/6763.stm32_5F00_uart.txt

/cfs-file/__key/communityserver-discussions-components-files/4/nrfUtil_5F00_pcUart.txt

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Sat, 22 Jun 2019 10:11:22 GMT

Hi,

Excellent. But can you also upload dumps of the UART traffic using both tools (nrfutil and your implementation running on the other microcontroller)? Please capture the dumps in the exact same way, so that we can diff the two dumps to see the difference.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

MahammadMalikRihan — Fri, 21 Jun 2019 12:22:35 GMT

Hi, Please find the logs attached. i have uploaded logs from both nrfutil & Stm32

/cfs-file/__key/communityserver-discussions-components-files/4/Nrfutil_5F00_logs.txt

/cfs-file/__key/communityserver-discussions-components-files/4/STM_5F00_logs.txt

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Fri, 21 Jun 2019 09:06:26 GMT

Hi,

I see. Please upload the complete logs to this case, as it will be useful. However, what I was really interested in was a raw dump of the UART traffic (assuming you are using UART as DFU transport - please confirm). Comparing the dumps should hopefully show where there is a difference, and then we know where to look closer.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

MahammadMalikRihan — Fri, 21 Jun 2019 03:42:20 GMT

I checked the debug logs from nRF while performing DFU from PC and from STM, I see similar logs.

I enable verbose in nrfutil and checked and i found we're also following similar process.

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Thu, 20 Jun 2019 08:45:04 GMT

I see. It looks correct to me, but obviously there is a problem somewhere. Can you dump the UART traffic when using both nrfutil and your implementation and diff it to see where it differs?

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

MahammadMalikRihan — Thu, 20 Jun 2019 05:19:20 GMT

Hi Einar,

Yes we are trying to implement DFU from STM32 to nRF. When the same package is transferred through the PC using nrfutil, it is always successful. But when the same package is transferred from STM32 i see failure. but CRC is correct.

Soft-device : S140-V6.1.1

SDK : v15.3.0

Bootloader : "secure_bootloader_uart_mbr_pca10056_debug" example provided in SDK

Generating the Application dfu package :

nrfutil pkg generate --hw-version 52 --sd-req 0xB6 --application-version 1 --application Application.hex --key-file priv.pem AppDfuPkg.zip

Following is the procedure to send Application binary using DFU

1. Set PRN to 0, NRF_DFU_OP_RECEIPT_NOTIF_SET

2. GET MTU NRF_DFU_OP_MTU_GET

3. Send init packet

Send NRF_DFU_OP_OBJECT_SELECT
Send NRF_DFU_OP_OBJECT_CREATE
Send NRF_DFU_OP_OBJECT_WRITE (keep sending packets with MTU size with slip packet )
Send NRF_DFU_OP_OBJECT_EXECUTE

4. Send application package

Send NRF_DFU_OP_OBJECT_SELECT
Send NRF_DFU_OP_OBJECT_CREATE
Send NRF_DFU_OP_OBJECT_WRITE (keep sending packets with MTU size with slip packet )
Send NRF_DFU_OP_OBJECT_EXECUTE
Repeat step 2,3,4 till whole firmware is transferred

5. DFU fails with <warning> nrf_dfu_serial: DFU request completed with result: 0xB

RE: Hash validation failure when DFU package transferred manually. nrf_dfu_validation: Hash verification failed.

Einar Thorsrud — Wed, 19 Jun 2019 11:55:50 GMT

Hi,

The question is a bit short on information, but I take it you have made your own serial DFU controller implementation running on the STM32, then? It is difficult to say what is the problem, but there must be a difference in the sequence when you use your implementation and when you use nrfutil. Have you compared them? What is the difference?