[PATCH v7 02/16] elf: Add _dl_audit_activity_map and _dl_audit_activity_nsid

Adhemerval Zanella adhemerval.zanella@linaro.org
Mon Dec 27 12:10:05 GMT 2021



On 24/12/2021 08:58, Florian Weimer wrote:
> * Adhemerval Zanella:
> 
>> diff --git a/elf/dl-audit.c b/elf/dl-audit.c
>> index 4066dfe851..b44ecde135 100644
>> --- a/elf/dl-audit.c
>> +++ b/elf/dl-audit.c
>> @@ -18,6 +18,36 @@
> 
>> +void
>> +_dl_audit_activity_nsid (Lmid_t nsid, int action)
>> +{
>> +  /* Auditing checkpoint: we have deleted all objects.  If head is NULL, the
>> +     namespace has become empty, and the audit interface does not give us a
>> +     way to signal LA_ACT_CONSISTENT for it because the first loaded module
>> +     is used to identify the namespace.
>> +
>> +     Furthermore, do not notify auditors of the cleanup of a failed audit
>> +     module loading attempt.  */
>> +  struct link_map *head = GL(dl_ns)[nsid]._ns_loaded;
>> +  if (__glibc_likely (GLRO(dl_naudit) == 0)
>> +      || head == NULL || head->l_auditing)
>> +    return;
>> +
>> +  _dl_audit_activity_map (head, action);
>> +}
> 
> I think it's probably best to split this comment and keep the “Auditing
> checkpoint: we have deleted all objects.” in elf/dl-close.c.  Likewise
> the failed loading attempt (although I don't quite see how this
> applies).

Ack, I will move it back to dl-close.c.

> 
>> +/* Call the la_activity() from the audit modules from the link map L
>> +   and issues the ACTION argument.  */
>> +void _dl_audit_activity_map (struct link_map *l, int action)
>> +  attribute_hidden;
>> +
>> +/* Call the la_activity() from the audit modules from the link map
>> +   from the namespace NSID and issues the ACTION argument.  */
>> +void _dl_audit_activity_nsid (Lmid_t nsid, int action)
>> +  attribute_hidden;
> 
> () is still there …

Ack, I will remove them.

> 
> Rest looks okay.
> 
> Reviewed-by: Florian Weimer <fweimer@redhat.com>
> 
> Thanks,
> Florian
> 


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