layed out initial structures. began work on registration procedure.

1 files changed, 117 insertions, 0 deletions

diff --git a/dat.h b/dat.h
new file mode 100644
index 0000000..caf6d01
--- /dev/null
+++ b/dat.h
@@ -0,0 +1,117 @@
+typedef enum {
+	REGISTER,
+	INVITE,
+	ACK,
+	BYE,
+	CANCEL,
+	OPTIONS,
+	NOTIFY,
+	SUBSCRIBE,
+	INFO,
+	MESSAGE,
+	UPDATE,
+	REFER
+} SipMethod;
+
+/* rfc3261 § 21 - Response Codes */
+typedef enum {
+	/* 1xx Provisional */
+	Trying		= 100,
+	Ringing		= 180,
+	CallForwarded	= 181,
+	Queued		= 182,
+	SessionProgress	= 183,
+
+	/* 2xx Successful */
+	OK		= 200,
+
+	/* 3xx Redirection */
+	MultiChoice		= 300,
+	MovedPerm		= 301,
+	MovedTemp		= 302,
+	UseProxy		= 305,
+	AltService		= 380,
+
+	/* 4xx Request Failure */
+	BadRequest		= 400,
+	Unauthorized		= 401,
+	PaymentRequired		= 402,
+	Forbidden		= 403,
+	NotFound		= 404,
+	MethodNotAllowed	= 405,
+	RequestNotAcceptable	= 406,
+	ProxyAuthRequired	= 407,
+	RequestTimeout		= 408,
+	Gone			= 410,
+	EntityTooLarge		= 413,
+	URITooLong		= 414,
+	UnsupportedMedia	= 415,
+	UnsupportedURIScheme	= 416,
+	BadExtension		= 420,
+	ExtensionRequired	= 421,
+	IntervalTooBrief	= 423,
+	TempUnavailable		= 480,
+	CallDoesNotExist	= 481,
+	LoopDetected		= 482,
+	TooManyHops		= 483,
+	AddressIncomplete	= 484,
+	Ambiguous		= 485,
+	BusyHere		= 486,
+	RequestTerminated	= 487,
+	NotAcceptableHere	= 488,
+	RequestPending		= 491,
+	Undecipherable		= 493,
+
+	/* 5xx Server Failure */
+	InternalError		= 500,
+	NotImplemented		= 501,
+	BadGateway		= 502,
+	ServiceUnavailable	= 503,
+	ServerTimeout		= 504,
+	VersionNotSupported	= 505,
+	MessageTooLarge		= 513,
+
+	/* 6xx Global Failures */
+	BusyEverywhere		= 600,
+	Decline			= 603,
+	DoesNotExistAnywhere	= 604,
+	NotAcceptable		= 606,
+	
+} SipStatus;
+
+typedef struct Hdr Hdr;
+typedef struct Hdrtab Hdrtab;
+typedef struct Sipmsg Sipmsg;
+typedef struct Sip Sip;
+
+struct Hdr
+{
+	char *name;
+	char *value;
+	Hdr *next;
+};
+
+struct Hdrtab
+{
+	Hdr *headers[13];
+};
+
+struct Sipmsg
+{
+	Hdrtab;
+	char *version;
+	SipMethod method;
+};
+
+/* SIP UAC (see rfc3261 § 8.1, 12.1.2) */
+struct Sip
+{
+	int version;
+
+	NetConnInfo *nci;
+	int fd;
+
+	int (*reg)(Sip*, char*, char*);
+};
+
+extern int debug;