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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 10/24/19 10:20 AM, Lakshmi Ramasubramanian wrote:
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)?


The idea is to use ima-buf template for the auxiliary measurement record. The auxiliary measurement record is an additional record to the one already created based on the existing policy. When func is passed as NONE, it represents it is an additional record. I am not sure what you mean by updating ima_get_action, it is already handling the ima policy.

Thanks & Regards,

    - Nayna




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux Kernel]     [Linux Kernel Hardening]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux