Build userland libalias using src/sys/netinet/libalias.

Reviewed by:	ru
Repocopy by:	peter

1 files changed, 0 insertions, 350 deletions

diff --git a/lib/libalias/alias_skinny.c b/lib/libalias/alias_skinny.c
deleted file mode 100644
index d1e4a14..0000000
--- a/lib/libalias/alias_skinny.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*-
- * alias_skinny.c
- *
- * Copyright (c) 2002, 2003 MarcusCom, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * Author: Joe Marcus Clarke <marcus@FreeBSD.org>
- *
- * $FreeBSD$
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in_systm.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <netinet/udp.h>
-#include <unistd.h>
-
-#include "alias_local.h"
-
-/*
- * alias_skinny.c handles the translation for the Cisco Skinny Station
- * protocol.  Skinny typically uses TCP port 2000 to set up calls between
- * a Cisco Call Manager and a Cisco IP phone.  When a phone comes on line,
- * it first needs to register with the Call Manager.  To do this it sends
- * a registration message.  This message contains the IP address of the
- * IP phone.  This message must then be translated to reflect our global
- * IP address.  Along with the registration message (and usually in the
- * same packet), the phone sends an IP port message.  This message indicates
- * the TCP port over which it will communicate.
- *
- * When a call is placed from the phone, the Call Manager will send an
- * Open Receive Channel message to the phone to let the caller know someone
- * has answered.  The phone then sends back an Open Receive Channel
- * Acknowledgement.  In this packet, the phone sends its IP address again,
- * and the UDP port over which the voice traffic should flow.  These values
- * need translation.  Right after the Open Receive Channel Acknowledgement,
- * the Call Manager sends a Start Media Transmission message indicating the
- * call is connected.  This message contains the IP address and UDP port
- * number of the remote (called) party.  Once this message is translated, the
- * call can commence.  The called part sends the first UDP packet to the
- * calling phone at the pre-arranged UDP port in the Open Receive Channel
- * Acknowledgement.
- *
- * Skinny is a Cisco-proprietary protocol and is a trademark of Cisco Systems,
- * Inc.  All rights reserved.
-*/
-
-/* #define DEBUG 1 */
-
-/* Message types that need translating */
-#define REG_MSG         0x00000001
-#define IP_PORT_MSG     0x00000002
-#define OPNRCVCH_ACK    0x00000022
-#define START_MEDIATX   0x0000008a
-
-struct skinny_header {
-	u_int32_t	len;
-	u_int32_t	reserved;
-	u_int32_t	msgId;
-};
-
-struct RegisterMessage {
-	u_int32_t	msgId;
-	char		devName   [16];
-	u_int32_t	uid;
-	u_int32_t	instance;
-	u_int32_t	ipAddr;
-	u_char		devType;
-	u_int32_t	maxStreams;
-};
-
-struct IpPortMessage {
-	u_int32_t	msgId;
-	u_int32_t	stationIpPort;	/* Note: Skinny uses 32-bit port
-					 * numbers */
-};
-
-struct OpenReceiveChannelAck {
-	u_int32_t	msgId;
-	u_int32_t	status;
-	u_int32_t	ipAddr;
-	u_int32_t	port;
-	u_int32_t	passThruPartyID;
-};
-
-struct StartMediaTransmission {
-	u_int32_t	msgId;
-	u_int32_t	conferenceID;
-	u_int32_t	passThruPartyID;
-	u_int32_t	remoteIpAddr;
-	u_int32_t	remotePort;
-	u_int32_t	MSPacket;
-	u_int32_t	payloadCap;
-	u_int32_t	precedence;
-	u_int32_t	silenceSuppression;
-	u_short		maxFramesPerPacket;
-	u_int32_t	G723BitRate;
-};
-
-typedef enum {
-	ClientToServer = 0,
-	ServerToClient = 1
-} ConvDirection;
-
-
-static int
-alias_skinny_reg_msg(struct RegisterMessage *reg_msg, struct ip *pip,
-    struct tcphdr *tc, struct alias_link *lnk,
-    ConvDirection direction)
-{
-	(void)direction;
-
-	reg_msg->ipAddr = (u_int32_t) GetAliasAddress(lnk).s_addr;
-
-	tc->th_sum = 0;
-	tc->th_sum = TcpChecksum(pip);
-
-	return (0);
-}
-
-static int
-alias_skinny_startmedia(struct StartMediaTransmission *start_media,
-    struct ip *pip, struct tcphdr *tc,
-    struct alias_link *lnk, u_int32_t localIpAddr,
-    ConvDirection direction)
-{
-	struct in_addr dst, src;
-
-	(void)pip;
-	(void)tc;
-	(void)lnk;
-	(void)direction;
-
-	dst.s_addr = start_media->remoteIpAddr;
-	src.s_addr = localIpAddr;
-
-	/*
-	 * XXX I should probably handle in bound global translations as
-	 * well.
-	 */
-
-	return (0);
-}
-
-static int
-alias_skinny_port_msg(struct IpPortMessage *port_msg, struct ip *pip,
-    struct tcphdr *tc, struct alias_link *lnk,
-    ConvDirection direction)
-{
-	(void)direction;
-
-	port_msg->stationIpPort = (u_int32_t) ntohs(GetAliasPort(lnk));
-
-	tc->th_sum = 0;
-	tc->th_sum = TcpChecksum(pip);
-
-	return (0);
-}
-
-static int
-alias_skinny_opnrcvch_ack(struct libalias *la, struct OpenReceiveChannelAck *opnrcvch_ack,
-    struct ip *pip, struct tcphdr *tc,
-    struct alias_link *lnk, u_int32_t * localIpAddr,
-    ConvDirection direction)
-{
-	struct in_addr null_addr;
-	struct alias_link *opnrcv_lnk;
-	u_int32_t localPort;
-
-	(void)lnk;
-	(void)direction;
-
-	*localIpAddr = (u_int32_t) opnrcvch_ack->ipAddr;
-	localPort = opnrcvch_ack->port;
-
-	null_addr.s_addr = INADDR_ANY;
-	opnrcv_lnk = FindUdpTcpOut(la, pip->ip_src, null_addr,
-	    htons((u_short) opnrcvch_ack->port), 0,
-	    IPPROTO_UDP, 1);
-	opnrcvch_ack->ipAddr = (u_int32_t) GetAliasAddress(opnrcv_lnk).s_addr;
-	opnrcvch_ack->port = (u_int32_t) ntohs(GetAliasPort(opnrcv_lnk));
-
-	tc->th_sum = 0;
-	tc->th_sum = TcpChecksum(pip);
-
-	return (0);
-}
-
-void
-AliasHandleSkinny(struct libalias *la, struct ip *pip, struct alias_link *lnk)
-{
-	size_t hlen, tlen, dlen;
-	struct tcphdr *tc;
-	u_int32_t msgId, t, len, lip;
-	struct skinny_header *sd;
-	size_t orig_len, skinny_hdr_len = sizeof(struct skinny_header);
-	ConvDirection direction;
-
-	tc = (struct tcphdr *)ip_next(pip);
-	hlen = (pip->ip_hl + tc->th_off) << 2;
-	tlen = ntohs(pip->ip_len);
-	dlen = tlen - hlen;
-
-	sd = (struct skinny_header *)tcp_next(tc);
-
-	/*
-	 * XXX This direction is reserved for future use.  I still need to
-	 * handle the scenario where the call manager is on the inside, and
-	 * the calling phone is on the global outside.
-	 */
-	if (ntohs(tc->th_dport) == la->skinnyPort) {
-		direction = ClientToServer;
-	} else if (ntohs(tc->th_sport) == la->skinnyPort) {
-		direction = ServerToClient;
-	} else {
-#ifdef DEBUG
-		fprintf(stderr,
-		    "PacketAlias/Skinny: Invalid port number, not a Skinny packet\n");
-#endif
-		return;
-	}
-
-	orig_len = dlen;
-	/*
-	 * Skinny packets can contain many messages.  We need to loop
-	 * through the packet using len to determine message boundaries.
-	 * This comes into play big time with port messages being in the
-	 * same packet as register messages.  Also, open receive channel
-	 * acks are usually buried in a pakcet some 400 bytes long.
-	 */
-	while (dlen >= skinny_hdr_len) {
-		len = (sd->len);
-		msgId = (sd->msgId);
-		t = len;
-
-		if (t > orig_len || t > dlen) {
-#ifdef DEBUG
-			fprintf(stderr,
-			    "PacketAlias/Skinny: Not a skinny packet, invalid length \n");
-#endif
-			return;
-		}
-		switch (msgId) {
-		case REG_MSG: {
-			struct RegisterMessage *reg_mesg;
-
-			if (len < (int)sizeof(struct RegisterMessage)) {
-#ifdef DEBUG
-				fprintf(stderr,
-				    "PacketAlias/Skinny: Not a skinny packet, bad registration message\n");
-#endif
-				return;
-			}
-			reg_mesg = (struct RegisterMessage *)&sd->msgId;
-#ifdef DEBUG
-			fprintf(stderr,
-			    "PacketAlias/Skinny: Received a register message");
-#endif
-			alias_skinny_reg_msg(reg_mesg, pip, tc, lnk, direction);
-			break;
-		}
-		case IP_PORT_MSG: {
-			struct IpPortMessage *port_mesg;
-
-			if (len < (int)sizeof(struct IpPortMessage)) {
-#ifdef DEBUG
-				fprintf(stderr,
-				    "PacketAlias/Skinny: Not a skinny packet, port message\n");
-#endif
-				return;
-			}
-#ifdef DEBUG
-			fprintf(stderr,
-			    "PacketAlias/Skinny: Received ipport message\n");
-#endif
-			port_mesg = (struct IpPortMessage *)&sd->msgId;
-			alias_skinny_port_msg(port_mesg, pip, tc, lnk, direction);
-			break;
-		}
-		case OPNRCVCH_ACK: {
-			struct OpenReceiveChannelAck *opnrcvchn_ack;
-
-			if (len < (int)sizeof(struct OpenReceiveChannelAck)) {
-#ifdef DEBUG
-				fprintf(stderr,
-				    "PacketAlias/Skinny: Not a skinny packet, packet,OpnRcvChnAckMsg\n");
-#endif
-				return;
-			}
-#ifdef DEBUG
-			fprintf(stderr,
-			    "PacketAlias/Skinny: Received open rcv channel msg\n");
-#endif
-			opnrcvchn_ack = (struct OpenReceiveChannelAck *)&sd->msgId;
-			alias_skinny_opnrcvch_ack(la, opnrcvchn_ack, pip, tc, lnk, &lip, direction);
-			break;
-		}
-		case START_MEDIATX: {
-			struct StartMediaTransmission *startmedia_tx;
-
-			if (len < (int)sizeof(struct StartMediaTransmission)) {
-#ifdef DEBUG
-				fprintf(stderr,
-				    "PacketAlias/Skinny: Not a skinny packet,StartMediaTx Message\n");
-#endif
-				return;
-			}
-#ifdef DEBUG
-			fprintf(stderr,
-			    "PacketAlias/Skinny: Received start media trans msg\n");
-#endif
-			startmedia_tx = (struct StartMediaTransmission *)&sd->msgId;
-			alias_skinny_startmedia(startmedia_tx, pip, tc, lnk, lip, direction);
-			break;
-		}
-		default:
-			break;
-		}
-		/* Place the pointer at the next message in the packet. */
-		dlen -= len + (skinny_hdr_len - sizeof(msgId));
-		sd = (struct skinny_header *)(((char *)&sd->msgId) + len);
-	}
-}