Re: [PATCH] SELinux: work around filesystems which call d_instantiate before setting inode mode

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On Tue, Aug 29, 2006 at 04:08:25PM -0400, Eric Paris wrote:
> diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h
> index 960ef18..043d479 100644
> --- a/security/selinux/include/avc.h
> +++ b/security/selinux/include/avc.h
> @@ -125,6 +125,8 @@ int avc_add_callback(int (*callback)(u32
>  		     u32 events, u32 ssid, u32 tsid,
>  		     u16 tclass, u32 perms);
>  
> +const char *avc_class_to_string(u16 tclass);
> +
>  /* Exported to selinuxfs */
>  int avc_get_hash_stats(char *page);
>  extern unsigned int avc_cache_threshold;
> diff --git a/security/selinux/avc.c b/security/selinux/avc.c
> index a300702..88bba69 100644
> --- a/security/selinux/avc.c
> +++ b/security/selinux/avc.c
> @@ -218,7 +218,7 @@ static void avc_dump_query(struct audit_
>  		audit_log_format(ab, " tcontext=%s", scontext);
>  		kfree(scontext);
>  	}
> -	audit_log_format(ab, " tclass=%s", class_to_string[tclass]);
> +	audit_log_format(ab, " tclass=%s", avc_class_to_string(tclass));
>  }
>  
>  /**
> @@ -913,3 +913,15 @@ int avc_has_perm(u32 ssid, u32 tsid, u16
>  	avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata);
>  	return rc;
>  }
> +
> +/**
> + * avc_class_to_string - return a human readable string given an object class.
> + * @tclass: the target class we wish to translate
> + *
> + * Simply take the target object class passed to us and return the human
> + * readable string associated with that class
> + */
> +const char *avc_class_to_string(u16 tclass)
> +{
> +	return class_to_string[tclass];
> +}

This portion of the patch has absolutely nothing to do with the core 
changes, and should be separate.  It is also introducing bloat, as the 
array index is very easy to calculate.

		-ben
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