Add audit uid to netlink credentials
Most audit control messages are sent over netlink.In order to properly
log the identity of the sender of audit control messages, we would like
to add the loginuid to the netlink_creds structure, as per the attached
patch.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 9ff2c1b..66148f8 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -251,7 +251,8 @@
return 0;
}
-int audit_receive_filter(int type, int pid, int uid, int seq, void *data)
+int audit_receive_filter(int type, int pid, int uid, int seq, void *data,
+ uid_t loginuid)
{
u32 flags;
struct audit_entry *entry;
@@ -286,6 +287,7 @@
err = audit_add_rule(entry, &audit_entlist);
if (!err && (flags & AUDIT_AT_EXIT))
err = audit_add_rule(entry, &audit_extlist);
+ audit_log(NULL, "auid %u added an audit rule\n", loginuid);
break;
case AUDIT_DEL:
flags =((struct audit_rule *)data)->flags;
@@ -295,6 +297,7 @@
err = audit_del_rule(data, &audit_entlist);
if (!err && (flags & AUDIT_AT_EXIT))
err = audit_del_rule(data, &audit_extlist);
+ audit_log(NULL, "auid %u removed an audit rule\n", loginuid);
break;
default:
return -EINVAL;
