hostapd: Use separate driver operations abstraction

It would be bettet to avoid including driver_i.h, i.e., direct driver
operation calls from hostapd components. This is an initial step in
that direction for WPS IE updates.

hostapd/Makefile

@@ -39,6 +39,7 @@ OBJS =	hostapd.o main.o ieee802_1x.o \
 	drv_callbacks.o \
 	tkip_countermeasures.o \
 	mlme.o wpa_auth_ie.o
+OBJS += ap_drv_ops.o
 NEED_RC4=y
 NEED_AES=y
 NEED_MD5=y

hostapd/ap_drv_ops.c

@@ -0,0 +1,39 @@
+/*
+ * hostapd - Driver operations
+ * Copyright (c) 2009, 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.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "hostapd.h"
+#include "driver_i.h"
+
+
+static int hostapd_set_ap_wps_ie(struct hostapd_data *hapd,
+				 const u8 *beacon_ie, size_t beacon_ie_len,
+				 const u8 *probe_resp_ie,
+				 size_t probe_resp_ie_len)
+{
+	if (hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie,
+				      hapd->wps_beacon_ie_len) < 0 ||
+	    hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie,
+					  hapd->wps_probe_resp_ie_len) < 0)
+		return -1;
+	return 0;
+}
+
+
+void hostapd_set_driver_ops(struct hostapd_driver_ops *ops)
+{
+	ops->set_ap_wps_ie = hostapd_set_ap_wps_ie;
+}

hostapd/hostapd.c

@@ -1384,6 +1384,7 @@ hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
 	if (hapd == NULL)
 		return NULL;
 
+	hostapd_set_driver_ops(&hapd->drv);
 	hapd->iconf = conf;
 	hapd->conf = bss;
 	hapd->iface = hapd_iface;

hostapd/hostapd.h

@@ -22,6 +22,7 @@ struct wpa_ctrl_dst;
 struct radius_server_data;
 struct upnp_wps_device_sm;
 struct hapd_interfaces;
+struct hostapd_data;
 
 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 struct full_dynamic_vlan;
@@ -40,6 +41,13 @@ struct hostapd_rate_data {
 };
 
 
+struct hostapd_driver_ops {
+	int (*set_ap_wps_ie)(struct hostapd_data *hapd,
+			     const u8 *beacon_ie, size_t beacon_ie_len,
+			     const u8 *probe_resp_ie,
+			     size_t probe_resp_ie_len);
+};
+
 /**
  * struct hostapd_data - hostapd per-BSS data structure
  */
@@ -67,6 +75,7 @@ struct hostapd_data {
 
 	const struct wpa_driver_ops *driver;
 	void *drv_priv;
+	struct hostapd_driver_ops drv;
 
 	void *msg_ctx; /* ctx for wpa_msg() calls */
 
@@ -195,5 +204,6 @@ int hostapd_set_drv_ieee8021x(struct hostapd_data *hapd, const char *ifname,
 int hostapd_sta_flags_to_drv(int flags);
 
 int eap_server_register_methods(void);
+void hostapd_set_driver_ops(struct hostapd_driver_ops *ops);
 
 #endif /* HOSTAPD_H */

hostapd/wps_hostapd.c

@@ -27,7 +27,7 @@
 #include "wps/wps_defs.h"
 #include "wps/wps_dev_attr.h"
 #include "hostapd.h"
-#include "driver_i.h"
+#include "config.h"
 #include "sta_info.h"
 #include "wps_hostapd.h"
 
@@ -109,8 +109,6 @@ static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie,
 		os_memcpy(hapd->wps_beacon_ie, beacon_ie, beacon_ie_len);
 		hapd->wps_beacon_ie_len = beacon_ie_len;
 	}
-	hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie,
-				  hapd->wps_beacon_ie_len);
 
 	os_free(hapd->wps_probe_resp_ie);
 	if (probe_resp_ie_len == 0) {
@@ -126,8 +124,10 @@ static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie,
 			  probe_resp_ie_len);
 		hapd->wps_probe_resp_ie_len = probe_resp_ie_len;
 	}
-	hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie,
+	hapd->drv.set_ap_wps_ie(hapd, hapd->wps_beacon_ie,
-				      hapd->wps_probe_resp_ie_len);
+				hapd->wps_beacon_ie_len,
+				hapd->wps_probe_resp_ie,
+				hapd->wps_probe_resp_ie_len);
 
 	return 0;
 }
@@ -480,12 +480,12 @@ static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 	os_free(hapd->wps_beacon_ie);
 	hapd->wps_beacon_ie = NULL;
 	hapd->wps_beacon_ie_len = 0;
-	hostapd_set_wps_beacon_ie(hapd, NULL, 0);
 
 	os_free(hapd->wps_probe_resp_ie);
 	hapd->wps_probe_resp_ie = NULL;
 	hapd->wps_probe_resp_ie_len = 0;
-	hostapd_set_wps_probe_resp_ie(hapd, NULL, 0);
+
+	hapd->drv.set_ap_wps_ie(hapd, NULL, 0, NULL, 0);
 }
 
 

wpa_supplicant/Makefile

@@ -597,6 +597,7 @@ OBJS += ../hostapd/ieee802_1x.o
 OBJS += ../src/eapol_auth/eapol_auth_sm.o
 OBJS += ../hostapd/ieee802_11_auth.o
 OBJS += ../hostapd/drv_callbacks.o
+OBJS += ../hostapd/ap_drv_ops.o
 ifdef CONFIG_CTRL_IFACE
 OBJS += ../hostapd/ctrl_iface_ap.o
 endif