First commit

src/ac/ac.h

@@ -0,0 +1,117 @@
+#ifndef __CAPWAP_AC_HEADER__
+#define __CAPWAP_AC_HEADER__
+
+/* standard include */
+#include "capwap.h"
+#include "capwap_network.h"
+#include "capwap_protocol.h"
+#include "capwap_lock.h"
+#include "capwap_list.h"
+#include "capwap_event.h"
+#include "capwap_element.h"
+
+#include <pthread.h>
+
+/* AC Configuration */
+#define AC_DEFAULT_CONFIGURATION_FILE		"/etc/capwap/ac.conf"
+
+#define AC_DEFAULT_MAXSTATION				128
+#define AC_DEFAULT_MAXSESSIONS				128
+
+/* AC runtime error return code */
+#define AC_ERROR_SYSTEM_FAILER				-1000
+#define AC_ERROR_LOAD_CONFIGURATION			-1001
+#define AC_ERROR_NETWORK					-1002
+#define AC_ERROR_MEMORY_LEAK				1
+
+/* Min and max dfa values */
+#define AC_MIN_WAITDTLS_INTERVAL					30
+#define AC_DEFAULT_WAITDTLS_INTERVAL				60
+#define AC_MIN_WAITJOIN_INTERVAL					20
+#define AC_DEFAULT_WAITJOIN_INTERVAL				60
+#define AC_DEFAULT_CHANGE_STATE_PENDING_TIMER		25
+#define AC_MIN_DISCOVERY_INTERVAL					2
+#define AC_DEFAULT_DISCOVERY_INTERVAL				20
+#define AC_MAX_DISCOVERY_INTERVAL					180
+#define AC_DEFAULT_ECHO_INTERVAL					30
+#define AC_MAX_ECHO_INTERVAL						256
+#define AC_DEFAULT_DECRYPT_ERROR_PERIOD_INTERVAL	120
+#define AC_DEFAULT_IDLE_TIMEOUT_INTERVAL			300
+#define AC_DEFAULT_WTP_FALLBACK_MODE				CAPWAP_WTP_FALLBACK_ENABLED
+#define AC_DEFAULT_DATA_CHECK_TIMER					30
+#define AC_DEFAULT_RETRANSMIT_INTERVAL				3
+#define AC_MAX_RETRANSMIT							5
+#define AC_DEFAULT_DTLS_SESSION_DELETE				5
+
+/* AC DFA */
+struct ac_state {
+	/* */
+	struct capwap_ecnsupport_element ecn;
+	struct capwap_transport_element transport;
+
+	struct capwap_timers_element timers;
+	unsigned short decrypterrorreport_interval;
+	struct capwap_idletimeout_element idletimeout;
+	struct capwap_wtpfallback_element wtpfallback;
+	
+	/* */
+	capwap_acipv4list_element_array* acipv4list;
+	capwap_acipv6list_element_array* acipv6list;
+
+	/* */
+	int rfcWaitJoin;
+	int rfcChangeStatePendingTimer;
+	int rfcDataCheckTimer;
+	int rfcDTLSSessionDelete;
+
+	/* Request retransmit */
+	int rfcRetransmitInterval;
+	int rfcRetransmitCount;
+	int rfcMaxRetransmit;
+
+	/* Dtls */
+	int rfcWaitDTLS;
+};
+
+/* Handshake DTLS Data Channel */
+struct ac_data_session_handshake {
+	struct capwap_socket socket;
+	struct sockaddr_storage acaddress;
+	struct sockaddr_storage wtpaddress;
+	struct capwap_dtls dtls;
+};
+
+/* AC */
+struct ac_t {
+	int running;
+	
+	/* */
+	struct ac_state dfa;
+	struct capwap_network net;
+	unsigned short mtu;
+
+	struct capwap_array* binding;
+
+	struct capwap_acname_element acname;
+	struct capwap_acdescriptor_element descriptor;
+
+	/* Sessions */
+	capwap_event_t changesessionlist;
+	struct capwap_list* sessions;
+	capwap_lock_t sessionslock;
+	struct capwap_list* datasessionshandshake;
+
+	/* Dtls */
+	int enabledtls;
+	struct capwap_dtls_context dtlscontext;
+};
+
+extern struct ac_t g_ac;
+
+/* Primary thread */
+int ac_execute(void);
+
+int ac_valid_binding(unsigned short binding);
+void ac_update_statistics(void);
+
+#endif /* __CAPWAP_AC_HEADER__ */