1 files changed, 115 insertions, 0 deletions
diff --git a/src/sip/sip.h b/src/sip/sip.h
new file mode 100644
index 0000000..37b8b8f
--- /dev/null
+++ b/src/sip/sip.h
@@ -0,0 +1,115 @@
+
+#include "../libtimer/timer.h"
+#include "../libosmocc/endpoint.h"
+#include <sofia-sip/nua.h>
+#include <sofia-sip/stun.h>
+
+#define STUN_RETRY_TIMER	10
+#define REGISTER_RETRY_TIMER	10
+
+enum reg_state {
+	REGISTER_STATE_NULL = 0,
+	REGISTER_STATE_UNREGISTERED,
+	REGISTER_STATE_REGISTERING,
+	REGISTER_STATE_REGISTERED,
+	REGISTER_STATE_FAILED,
+};
+
+enum stun_state {
+	STUN_STATE_NULL = 0,
+	STUN_STATE_UNRESOLVED,
+	STUN_STATE_RESOLVING,
+	STUN_STATE_RESOLVED,
+	STUN_STATE_FAILED,
+};
+
+enum sip_state {
+	SIP_STATE_IDLE = 0,
+	SIP_STATE_OUT_INVITE,	/* invite sent, waiting for replies */
+	SIP_STATE_IN_INVITE,	/* invite received, sending replies */
+	SIP_STATE_CONNECT,	/* active call */
+	SIP_STATE_OUT_RELEASE,	/* outgoing release, sending REL_CNF */
+};
+
+struct sip_call;
+
+typedef struct sip_endpoint {
+	/* setting flags */
+	int		send_no_ringing_after_progress;
+	int		receive_no_ringing_after_progress;
+
+	/* endpoint */
+	osmo_cc_endpoint_t cc_ep;
+	const char	*name;
+	struct sip_call	*call_list;
+
+	/* SIP settings */
+	const char	*local_user;
+	const char	*local_peer;
+	const char	*remote_user;
+	const char	*remote_peer;
+	const char	*asserted_id;
+	int		local_register;
+	int		remote_register;
+	const char	*register_user;
+	const char	*register_peer;
+	int		authenticate_local;
+	int		authenticate_remote;
+	const char	*auth_user;
+	const char	*auth_password;
+	const char	*auth_realm;
+
+	/* NAT help */
+	char		public_ip[256];
+	const char	*stun_server;
+
+	/* timers */
+	int		register_interval;
+	int		options_interval;
+	int		stun_interval;
+	struct timer	stun_retry_timer;
+	struct timer	register_retry_timer;
+	struct timer	register_option_timer;
+
+	/* SIP stack */
+	su_root_t	*su_root;
+	nua_t		*nua;
+	nua_handle_t	*register_handle;
+
+	/* register process */
+	char		remote_contact[256];
+	char		register_nonce[64];
+	char		invite_nonce[64];
+	enum reg_state	register_state;
+	enum stun_state	stun_state;
+
+	/* stun process */
+	stun_handle_t	*stun_handle;
+	su_socket_t	stun_socket;
+} sip_endpoint_t;
+
+typedef struct sip_call {
+	struct sip_call *next;
+
+	osmo_cc_call_t	*cc_call;
+	uint32_t	cc_callref;
+	sip_endpoint_t	*sip_ep;
+	enum sip_state	state;
+
+	nua_handle_t	*nua_handle;
+
+	struct timer	invite_option_timer;
+
+	char		*sdp_request, *sdp_response;
+	int		sdp_sent;
+	int		alerting_sent;
+
+} call_t;
+
+void cc_message(osmo_cc_endpoint_t *ep, uint32_t callref, osmo_cc_msg_t *msg);
+sip_endpoint_t *sip_endpoint_create(int send_no_ringing_after_progress, int receive_no_ringing_after_progress, const char *name, const char *local_user, const char *local_peer, const char *remote_user, const char *remote_peer, const char *asserted_id, int local_register, int remote_register, const char *register_user, const char *register_peer, int authenticate_local, int authenticate_remote, const char *auth_user, const char *auth_password, const char *auth_realm, const char *public_ip, const char *stun_server, int register_interval, int options_interval, int stun_interval, int expires);
+void sip_endpoint_destroy(sip_endpoint_t *sip_ep);
+int sip_init(int debug_level);
+void sip_exit(void);
+void sip_handle(sip_endpoint_t *sip_ep);
+