Re: [PATCH v9 5/8] ima: make process_buffer_measurement() generic

[Lakshmi Ramasubramanian <nramas@linux.microsoft.com>]

On 10/23/19 8:47 PM, Nayna Jain wrote:

Hi Nayna,

> +void process_buffer_measurement(const void *buf, int size,
> +				const char *eventname, enum ima_hooks func,
> +				int pcr)
>   {
>   	int ret = 0;
>   	struct ima_template_entry *entry = NULL;

> +	if (func) {
> +		security_task_getsecid(current, &secid);
> +		action = ima_get_action(NULL, current_cred(), secid, 0, func,
> +					&pcr, &template);
> +		if (!(action & IMA_MEASURE))
> +			return;
> +	}

In your change set process_buffer_measurement is called with NONE for 
the parameter func. So ima_get_action (the above if block) will not be 
executed.

Wouldn't it better to update ima_get_action (and related functions) to 
handle the ima policy (func param)?

thanks,
  -lakshmi