wpa_supplicant: Initial Revision 0.8.X

Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date:   Thu Apr 21 20:41:01 2011 +0300

    Enable CONFIG_DRIVER_NL80211=y in the default configuration

    nl80211 should be preferred over WEXT with any recent Linux
    kernel version.

Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/radius/radius_client.h b/src/radius/radius_client.h
new file mode 100644
index 0000000..18e7290
--- /dev/null
+++ b/src/radius/radius_client.h
@@ -0,0 +1,265 @@
+/*
+ * RADIUS client
+ * Copyright (c) 2002-2009, 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.
+ */
+
+#ifndef RADIUS_CLIENT_H
+#define RADIUS_CLIENT_H
+
+#include "ip_addr.h"
+
+struct radius_msg;
+
+/**
+ * struct hostapd_radius_server - RADIUS server information for RADIUS client
+ *
+ * This structure contains information about a RADIUS server. The values are
+ * mainly for MIB information. The MIB variable prefix (radiusAuth or
+ * radiusAcc) depends on whether this is an authentication or accounting
+ * server.
+ *
+ * radiusAuthClientPendingRequests (or radiusAccClientPendingRequests) is the
+ * number struct radius_client_data::msgs for matching msg_type.
+ */
+struct hostapd_radius_server {
+	/**
+	 * addr - radiusAuthServerAddress or radiusAccServerAddress
+	 */
+	struct hostapd_ip_addr addr;
+
+	/**
+	 * port - radiusAuthClientServerPortNumber or radiusAccClientServerPortNumber
+	 */
+	int port;
+
+	/**
+	 * shared_secret - Shared secret for authenticating RADIUS messages
+	 */
+	u8 *shared_secret;
+
+	/**
+	 * shared_secret_len - Length of shared_secret in octets
+	 */
+	size_t shared_secret_len;
+
+	/* Dynamic (not from configuration file) MIB data */
+
+	/**
+	 * index - radiusAuthServerIndex or radiusAccServerIndex
+	 */
+	int index;
+
+	/**
+	 * round_trip_time - radiusAuthClientRoundTripTime or radiusAccClientRoundTripTime
+	 * Round-trip time in hundredths of a second.
+	 */
+	int round_trip_time;
+
+	/**
+	 * requests - radiusAuthClientAccessRequests or radiusAccClientRequests
+	 */
+	u32 requests;
+
+	/**
+	 * retransmissions - radiusAuthClientAccessRetransmissions or radiusAccClientRetransmissions
+	 */
+	u32 retransmissions;
+
+	/**
+	 * access_accepts - radiusAuthClientAccessAccepts
+	 */
+	u32 access_accepts;
+
+	/**
+	 * access_rejects - radiusAuthClientAccessRejects
+	 */
+	u32 access_rejects;
+
+	/**
+	 * access_challenges - radiusAuthClientAccessChallenges
+	 */
+	u32 access_challenges;
+
+	/**
+	 * responses - radiusAccClientResponses
+	 */
+	u32 responses;
+
+	/**
+	 * malformed_responses - radiusAuthClientMalformedAccessResponses or radiusAccClientMalformedResponses
+	 */
+	u32 malformed_responses;
+
+	/**
+	 * bad_authenticators - radiusAuthClientBadAuthenticators or radiusAccClientBadAuthenticators
+	 */
+	u32 bad_authenticators;
+
+	/**
+	 * timeouts - radiusAuthClientTimeouts or radiusAccClientTimeouts
+	 */
+	u32 timeouts;
+
+	/**
+	 * unknown_types - radiusAuthClientUnknownTypes or radiusAccClientUnknownTypes
+	 */
+	u32 unknown_types;
+
+	/**
+	 * packets_dropped - radiusAuthClientPacketsDropped or radiusAccClientPacketsDropped
+	 */
+	u32 packets_dropped;
+};
+
+/**
+ * struct hostapd_radius_servers - RADIUS servers for RADIUS client
+ */
+struct hostapd_radius_servers {
+	/**
+	 * auth_servers - RADIUS Authentication servers in priority order
+	 */
+	struct hostapd_radius_server *auth_servers;
+
+	/**
+	 * num_auth_servers - Number of auth_servers entries
+	 */
+	int num_auth_servers;
+
+	/**
+	 * auth_server - The current Authentication server
+	 */
+	struct hostapd_radius_server *auth_server;
+
+	/**
+	 * acct_servers - RADIUS Accounting servers in priority order
+	 */
+	struct hostapd_radius_server *acct_servers;
+
+	/**
+	 * num_acct_servers - Number of acct_servers entries
+	 */
+	int num_acct_servers;
+
+	/**
+	 * acct_server - The current Accounting server
+	 */
+	struct hostapd_radius_server *acct_server;
+
+	/**
+	 * retry_primary_interval - Retry interval for trying primary server
+	 *
+	 * This specifies a retry interval in sexconds for trying to return to
+	 * the primary RADIUS server. RADIUS client code will automatically try
+	 * to use the next server when the current server is not replying to
+	 * requests. If this interval is set (non-zero), the primary server
+	 * will be retried after the specified number of seconds has passed
+	 * even if the current used secondary server is still working.
+	 */
+	int retry_primary_interval;
+
+	/**
+	 * msg_dumps - Whether RADIUS message details are shown in stdout
+	 */
+	int msg_dumps;
+
+	/**
+	 * client_addr - Client (local) address to use if force_client_addr
+	 */
+	struct hostapd_ip_addr client_addr;
+
+	/**
+	 * force_client_addr - Whether to force client (local) address
+	 */
+	int force_client_addr;
+};
+
+
+/**
+ * RadiusType - RADIUS server type for RADIUS client
+ */
+typedef enum {
+	/**
+	 * RADIUS authentication
+	 */
+	RADIUS_AUTH,
+
+	/**
+	 * RADIUS_ACCT - RADIUS accounting
+	 */
+	RADIUS_ACCT,
+
+	/**
+	 * RADIUS_ACCT_INTERIM - RADIUS interim accounting message
+	 *
+	 * Used only with radius_client_send(). This behaves just like
+	 * RADIUS_ACCT, but removes any pending interim RADIUS Accounting
+	 * messages for the same STA before sending the new interim update.
+	 */
+	RADIUS_ACCT_INTERIM
+} RadiusType;
+
+/**
+ * RadiusRxResult - RADIUS client RX handler result
+ */
+typedef enum {
+	/**
+	 * RADIUS_RX_PROCESSED - Message processed
+	 *
+	 * This stops handler calls and frees the message.
+	 */
+	RADIUS_RX_PROCESSED,
+
+	/**
+	 * RADIUS_RX_QUEUED - Message has been queued
+	 *
+	 * This stops handler calls, but does not free the message; the handler
+	 * that returned this is responsible for eventually freeing the
+	 * message.
+	 */
+	RADIUS_RX_QUEUED,
+
+	/**
+	 * RADIUS_RX_UNKNOWN - Message is not for this handler
+	 */
+	RADIUS_RX_UNKNOWN,
+
+	/**
+	 * RADIUS_RX_INVALID_AUTHENTICATOR - Message has invalid Authenticator
+	 */
+	RADIUS_RX_INVALID_AUTHENTICATOR
+} RadiusRxResult;
+
+struct radius_client_data;
+
+int radius_client_register(struct radius_client_data *radius,
+			   RadiusType msg_type,
+			   RadiusRxResult (*handler)
+			   (struct radius_msg *msg, struct radius_msg *req,
+			    const u8 *shared_secret, size_t shared_secret_len,
+			    void *data),
+			   void *data);
+int radius_client_send(struct radius_client_data *radius,
+		       struct radius_msg *msg,
+		       RadiusType msg_type, const u8 *addr);
+u8 radius_client_get_id(struct radius_client_data *radius);
+void radius_client_flush(struct radius_client_data *radius, int only_auth);
+struct radius_client_data *
+radius_client_init(void *ctx, struct hostapd_radius_servers *conf);
+void radius_client_deinit(struct radius_client_data *radius);
+void radius_client_flush_auth(struct radius_client_data *radius,
+			      const u8 *addr);
+int radius_client_get_mib(struct radius_client_data *radius, char *buf,
+			  size_t buflen);
+void radius_client_reconfig(struct radius_client_data *radius,
+			    struct hostapd_radius_servers *conf);
+
+#endif /* RADIUS_CLIENT_H */