ima: wrap event related data to the new ima_event_data structure

All event related data has been wrapped into the new 'ima_event_data'
structure. The main benefit of this patch is that a new information
can be made available to template fields initialization functions
by simply adding a new field to the new structure instead of modifying
the definition of those functions.

Changelog:
 - v2:
   - f_dentry replaced with f_path.dentry (Roberto Sassu)
   - removed declaration of temporary variables in template field functions
     when possible (suggested by Dmitry Kasatkin)

Signed-off-by: Roberto Sassu <rsassu@suse.de>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 0f4cffd76070..2c668370a438 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -49,6 +49,8 @@ static int __init ima_add_boot_aggregate(void)
 	const char *audit_cause = "ENOMEM";
 	struct ima_template_entry *entry;
 	struct integrity_iint_cache tmp_iint, *iint = &tmp_iint;
+	struct ima_event_data event_data = {iint, NULL, boot_aggregate_name,
+					    NULL, 0};
 	int result = -ENOMEM;
 	int violation = 0;
 	struct {
@@ -70,8 +72,7 @@ static int __init ima_add_boot_aggregate(void)
 		}
 	}
 
-	result = ima_alloc_init_template(iint, NULL, boot_aggregate_name,
-					 NULL, 0, &entry);
+	result = ima_alloc_init_template(&event_data, &entry);
 	if (result < 0) {
 		audit_cause = "alloc_entry";
 		goto err_out;