AppArmor: basic auditing infrastructure.

Update lsm_audit for AppArmor specific data, and add the core routines for
AppArmor uses for auditing.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>

include/linux/lsm_audit.h

@@ -98,6 +98,33 @@ struct common_audit_data {
 			struct av_decision *avd;
 			int result;
 		} selinux_audit_data;
+#endif
+#ifdef CONFIG_SECURITY_APPARMOR
+		struct {
+			int error;
+			int op;
+			int type;
+			void *profile;
+			const char *name;
+			const char *info;
+			union {
+				void *target;
+				struct {
+					long pos;
+					void *target;
+				} iface;
+				struct {
+					int rlim;
+					unsigned long max;
+				} rlim;
+				struct {
+					const char *target;
+					u32 request;
+					u32 denied;
+					uid_t ouid;
+				} fs;
+			};
+		} apparmor_audit_data;
 #endif
 	};
 	/* these callback will be implemented by a specific LSM */