dom mar 2 20:52:10 CET 2003

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@629 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 126 insertions, 0 deletions

diff --git a/channels/iax2.h b/channels/iax2.h
new file mode 100755
index 000000000..c3727ac81
--- /dev/null
+++ b/channels/iax2.h
@@ -0,0 +1,126 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Implementation of Inter-Asterisk eXchange
+ * 
+ * Copyright (C) 2003, Digium
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+ 
+#ifndef _ASTERISK_IAX2_H
+#define _ASTERISK_IAX2_H
+
+/* Max version of IAX protocol we support */
+#define AST_IAX2_PROTO_VERSION 2
+
+#define AST_IAX2_MAX_CALLS 32768
+
+#define AST_FLAG_FULL		0x8000
+
+#define AST_FLAG_RETRANS	0x8000
+
+#define AST_FLAG_SC_LOG		0x80
+
+#define AST_MAX_SHIFT		0x1F
+
+#define AST_IAX2_WINDOW		256
+
+/* Subclass for AST_FRAME_IAX */
+#define AST_IAX2_COMMAND_NEW		1
+#define AST_IAX2_COMMAND_PING	2
+#define AST_IAX2_COMMAND_PONG	3
+#define AST_IAX2_COMMAND_ACK		4
+#define AST_IAX2_COMMAND_HANGUP	5
+#define AST_IAX2_COMMAND_REJECT	6
+#define AST_IAX2_COMMAND_ACCEPT	7
+#define AST_IAX2_COMMAND_AUTHREQ	8
+#define AST_IAX2_COMMAND_AUTHREP	9
+#define AST_IAX2_COMMAND_INVAL	10
+#define AST_IAX2_COMMAND_LAGRQ	11
+#define AST_IAX2_COMMAND_LAGRP	12
+#define AST_IAX2_COMMAND_REGREQ	13	/* Registration request */
+#define AST_IAX2_COMMAND_REGAUTH	14	/* Registration authentication required */
+#define AST_IAX2_COMMAND_REGACK	15	/* Registration accepted */
+#define AST_IAX2_COMMAND_REGREJ	16	/* Registration rejected */
+#define AST_IAX2_COMMAND_REGREL	17	/* Force release of registration */
+#define AST_IAX2_COMMAND_VNAK	18	/* If we receive voice before valid first voice frame, send this */
+#define AST_IAX2_COMMAND_DPREQ	19	/* Request status of a dialplan entry */
+#define AST_IAX2_COMMAND_DPREP	20	/* Request status of a dialplan entry */
+#define AST_IAX2_COMMAND_DIAL	21	/* Request a dial on channel brought up TBD */
+#define AST_IAX2_COMMAND_TXREQ	22	/* Transfer Request */
+#define AST_IAX2_COMMAND_TXCNT	23	/* Transfer Connect */
+#define AST_IAX2_COMMAND_TXACC	24	/* Transfer Accepted */
+#define AST_IAX2_COMMAND_TXREADY	25	/* Transfer ready */
+#define AST_IAX2_COMMAND_TXREL	26	/* Transfer release */
+#define AST_IAX2_COMMAND_TXREJ	27	/* Transfer reject */
+#define AST_IAX2_COMMAND_QUELCH	28	/* Stop audio/video transmission */
+#define AST_IAX2_COMMAND_UNQUELCH 29	/* Resume audio/video transmission */
+#define AST_IAX2_COMMAND_POKE    30  /* Like ping, but does not require an open connection */
+#define AST_IAX2_COMMAND_PAGE	31	/* Paging description */
+#define AST_IAX2_COMMAND_MWI	32	/* Stand-alone message waiting indicator */
+#define AST_IAX2_COMMAND_UNSUPPORT	33	/* Unsupported message received */
+
+#define AST_DEFAULT_REG_EXPIRE  60	/* By default require re-registration once per minute */
+
+#define AST_DEFAULT_IAX_PORTNO	4569
+
+/* IAX Information elements */
+#define IAX_IE_CALLED_NUMBER		1		/* Number/extension being called - string */
+#define IAX_IE_CALLING_NUMBER		2		/* Calling number - string */
+#define IAX_IE_CALLING_ANI			3		/* Calling number ANI for billing  - string */
+#define IAX_IE_CALLING_NAME			4		/* Name of caller - string */
+#define IAX_IE_CALLED_CONTEXT		5		/* Context for number - string */
+#define IAX_IE_USERNAME				6		/* Username (peer or user) for authentication - string */
+#define IAX_IE_PASSWORD				7		/* Password for authentication - string */
+#define IAX_IE_CAPABILITY			8		/* Actual codec capability - unsigned int */
+#define IAX_IE_FORMAT				9		/* Desired codec format - unsigned int */
+#define IAX_IE_LANGUAGE				10		/* Desired language - string */
+#define IAX_IE_VERSION				11		/* Protocol version - short */
+#define IAX_IE_ADSICPE				12		/* CPE ADSI capability - int */
+#define IAX_IE_DNID					13		/* Originally dialed DNID - string */
+#define IAX_IE_AUTHMETHODS			14		/* Authentication method(s) - short */
+#define IAX_IE_CHALLENGE			15		/* Challenge data for MD5/RSA - string */
+#define IAX_IE_MD5_RESULT			16		/* MD5 challenge result - string */
+#define IAX_IE_RSA_RESULT			17		/* RSA challenge result - string */
+#define IAX_IE_APPARENT_ADDR		18		/* Apparent address of peer - struct sockaddr_in */
+#define IAX_IE_REFRESH				19		/* When to refresh registration - short */
+#define IAX_IE_DPSTATUS				20		/* Dialplan status - short */
+#define IAX_IE_CALLNO				21		/* Call number of peer - short */
+#define IAX_IE_CAUSE				22		/* Cause - string */
+
+#define IAX_AUTH_PLAINTEXT			(1 << 0)
+#define IAX_AUTH_MD5				(1 << 1)
+#define IAX_AUTH_RSA				(1 << 2)
+
+#define IAX_DPSTATUS_EXISTS			(1 << 0)
+#define IAX_DPSTATUS_CANEXIST		(1 << 1)
+#define IAX_DPSTATUS_NONEXISTANT	(1 << 2)
+#define IAX_DPSTATUS_IGNOREPAT		(1 << 14)
+#define IAX_DPSTATUS_MATCHMORE		(1 << 15)
+
+/* Full frames are always delivered reliably */
+struct ast_iax2_full_hdr {
+	unsigned short scallno;	/* Source call number -- high bit must be 1 */
+	unsigned short dcallno;	/* Destination call number -- high bit is 1 if retransmission */
+	unsigned int ts;		/* 32-bit timestamp in milliseconds (from 1st transmission) */
+	unsigned short oseqno;	/* Packet number (outgoing) */
+	unsigned short iseqno;	/* Packet number (next incoming expected) */
+	char type;				/* Frame type */
+	unsigned char csub;		/* Compressed subclass */
+	unsigned char iedata[0];
+};
+
+/* Mini header is used only for voice frames -- delivered unreliably */
+struct ast_iax2_mini_hdr {
+	short callno;			/* Source call number -- high bit must be 0 */
+	unsigned short ts;		/* 16-bit Timestamp (high 16 bits from last ast_iax2_full_hdr) */
+							/* Frametype implicitly VOICE_FRAME */
+							/* subclass implicit from last ast_iax2_full_hdr */
+	unsigned char iedata[0];
+};
+
+#endif