[PATCH v3 03/11] tpm: Add debugging of request in tpm_sendrecv_command()

Ilias Apalodimas ilias.apalodimas at linaro.org
Mon Jan 25 09:28:38 CET 2021


On Sat, Jan 23, 2021 at 10:25:59AM -0700, Simon Glass wrote:
> The response is shown but not the request. Update the code to show both
> if debugging is enabled.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
> 
> (no changes since v1)
> 
>  lib/tpm-common.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/lib/tpm-common.c b/lib/tpm-common.c
> index e4af87f76aa..0255d3bd9cf 100644
> --- a/lib/tpm-common.c
> +++ b/lib/tpm-common.c
> @@ -165,7 +165,7 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
>  	int err, ret;
>  	u8 response_buffer[COMMAND_BUFFER_SIZE];
>  	size_t response_length;
> -	int i;
> +	int i, size;
>  
>  	if (response) {
>  		response_length = *size_ptr;
> @@ -174,8 +174,13 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
>  		response_length = sizeof(response_buffer);
>  	}
>  
> -	err = tpm_xfer(dev, command, tpm_command_size(command),
> -		       response, &response_length);
> +	size = tpm_command_size(command);

tpm_command_size is u32. Is there a the declaration here is int for size?

> +	log_debug("TPM request [size:%d]: ", size);
> +	for (i = 0; i < size; i++)
> +		log_debug("%02x ", ((u8 *)command)[i]);
> +	log_debug("\n");
> +
> +	err = tpm_xfer(dev, command, size, response, &response_length);
>  
>  	if (err < 0)
>  		return err;
> -- 
> 2.30.0.280.ga3ce27912f-goog
> 


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