Move generic AP functionality implementation into src/ap

This code can be shared by both hostapd and wpa_supplicant and this
is an initial step in getting the generic code moved to be under the
src directories. Couple of generic files still remain under the
hostapd directory due to direct dependencies to files there. Once the
dependencies have been removed, they will also be moved to the src/ap
directory to allow wpa_supplicant to be built without requiring anything
from the hostapd directory.

src/ap/ieee802_11_auth.h

@@ -0,0 +1,31 @@
+/*
+ * hostapd / IEEE 802.11 authentication (ACL)
+ * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef IEEE802_11_AUTH_H
+#define IEEE802_11_AUTH_H
+
+enum {
+	HOSTAPD_ACL_REJECT = 0,
+	HOSTAPD_ACL_ACCEPT = 1,
+	HOSTAPD_ACL_PENDING = 2,
+	HOSTAPD_ACL_ACCEPT_TIMEOUT = 3
+};
+
+int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
+			    const u8 *msg, size_t len, u32 *session_timeout,
+			    u32 *acct_interim_interval, int *vlan_id);
+int hostapd_acl_init(struct hostapd_data *hapd);
+void hostapd_acl_deinit(struct hostapd_data *hapd);
+
+#endif /* IEEE802_11_AUTH_H */