1 files changed, 0 insertions, 577 deletions

diff --git a/usr.sbin/atm/scspd/scsp_hfsm.c b/usr.sbin/atm/scspd/scsp_hfsm.c
deleted file mode 100644
index 8010290..0000000
--- a/usr.sbin/atm/scspd/scsp_hfsm.c
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- *
- * ===================================
- * HARP  |  Host ATM Research Platform
- * ===================================
- *
- *
- * This Host ATM Research Platform ("HARP") file (the "Software") is
- * made available by Network Computing Services, Inc. ("NetworkCS")
- * "AS IS".  NetworkCS does not provide maintenance, improvements or
- * support of any kind.
- *
- * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
- * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
- * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
- * In no event shall NetworkCS be responsible for any damages, including
- * but not limited to consequential damages, arising from or relating to
- * any use of the Software or related support.
- *
- * Copyright 1994-1998 Network Computing Services, Inc.
- *
- * Copies of this Software may be made, however, the above copyright
- * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
- */
-
-
-/*
- * Server Cache Synchronization Protocol (SCSP) Support
- * ----------------------------------------------------
- *
- * HELLO finite state machine
- *
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netatm/queue.h> 
-#include <netatm/atm.h>
-#include <netatm/atm_if.h>
-#include <netatm/atm_sap.h>
-#include <netatm/atm_sys.h>
-#include <netatm/atm_ioctl.h>
-  
-#include <errno.h>
-#include <libatm.h>
-#include <stdio.h>
-#include <syslog.h>
-
-#include "scsp_msg.h"
-#include "scsp_if.h"
-#include "scsp_var.h"
-
-#ifndef lint
-__RCSID("@(#) $FreeBSD$");
-#endif
-
-
-/*
- * HELLO FSM actions
- */
-#define	HELLO_ACTION_CNT	7
-int	scsp_hello_act_00(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_01(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_02(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_03(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_04(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_05(Scsp_dcs *, Scsp_msg *);
-int	scsp_hello_act_06(Scsp_dcs *, Scsp_msg *);
-
-static int (*scsp_action_vector[HELLO_ACTION_CNT])() = {
-	scsp_hello_act_00,
-	scsp_hello_act_01,
-	scsp_hello_act_02,
-	scsp_hello_act_03,
-	scsp_hello_act_04,
-	scsp_hello_act_05,
-	scsp_hello_act_06
-};
-
-/*
- * HELLO FSM state table
- */
-static int hello_state_table[SCSP_HFSM_EVENT_CNT][SCSP_HFSM_STATE_CNT] = {
-	/* 0  1  2  3		     */
-	{  1, 1, 1, 1 },	/* 0 */
-	{  0, 2, 2, 2 },	/* 1 */
-	{  0, 3, 3, 3 },	/* 2 */
-	{  0, 0, 4, 4 },	/* 3 */
-	{  0, 5, 5, 6 },	/* 4 */
-};
-
-/*
- * HELLO finite state machine
- *
- * Arguments:
- *	dcsp	pointer to a DCS control block for the neighbor
- *	event	the event which has occurred
- *	msg	pointer to received message, if there is one
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hfsm(dcsp, event, msg)
-	Scsp_dcs	*dcsp;
-	int		event;
-	Scsp_msg	*msg;
-{
-	int	action, rc, state;
-
-	/*
-	 * Select an action from the state table
-	 */
-	state = dcsp->sd_hello_state;
-	action = hello_state_table[event][state];
-	if (scsp_trace_mode & SCSP_TRACE_HFSM) {
-		scsp_trace("HFSM: state=%d, event=%d, action=%d\n",
-				state, event, action);
-	}
-	if (action >= HELLO_ACTION_CNT || action <= 0) {
-		scsp_log(LOG_ERR, "Hello FSM--invalid action %d; state=%d, event=%d",
-				action, dcsp->sd_hello_state, event);
-		abort();
-	}
-
-	/*
-	 * Perform the selected action
-	 */
-	rc = scsp_action_vector[action](dcsp, msg);
-
-	return(rc);
-}
-
-
-/*
- * HELLO finite state machine action 0
- * Unexpected action -- log an error message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message (ignored)
- *
- * Returns:
- *	EOPNOTSUPP	always returns EOPNOTSUPP
- *
- */
-int
-scsp_hello_act_00(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	scsp_log(LOG_ERR, "Hello FSM error--unexpected action, state=%d",
-			dcsp->sd_hello_state);
-	return(EOPNOTSUPP);
-}
-
-
-/*
- * HELLO finite state machine action 1
- * VCC open -- send HELLO message, start hello timer, go to Waiting
- * state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message (ignored)
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_01(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int		rc;
-
-	/*
-	 * Cancel the VCC open timer if it's running
-	 */
-	HARP_CANCEL(&dcsp->sd_open_t);
-
-	/*
-	 * Go to Waiting state
-	 */
-	dcsp->sd_hello_state = SCSP_HFSM_WAITING;
-
-	/*
-	 * Send a Hello message
-	 */
-	rc = scsp_send_hello(dcsp);
-	if (rc == 0) {
-		/*
-		 * Success--start the Hello timer
-		 */
-		HARP_TIMER(&dcsp->sd_hello_h_t, SCSP_HELLO_Interval,
-				scsp_hello_timeout);
-	}
-
-	return(rc);
-}
-
-
-/*
- * HELLO finite state machine action 2
- * VCC closed -- notify CA FSM, go to Down state, try to re-open VCC
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message (ignored)
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_02(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int		rc;
-
-	/*
-	 * Cancel any current timers
-	 */
-	HARP_CANCEL(&dcsp->sd_hello_h_t);
-	HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-
-	/*
-	 * Log the loss of the VCC
-	 */
-	if (dcsp->sd_hello_state > SCSP_HFSM_WAITING) {
-		scsp_log(LOG_ERR, "VC to %s closed",
-				format_atm_addr(&dcsp->sd_addr));
-	}
-
-	/*
-	 * Tell the CA FSM that the conection to the DCS is lost
-	 */
-	rc = scsp_cafsm(dcsp, SCSP_CAFSM_HELLO_DOWN, (void *)0);
-
-	/*
-	 * Go to Down state
-	 */
-	dcsp->sd_hello_state = SCSP_HFSM_DOWN;
-
-	/*
-	 * If our ID is lower than the DCS's, wait a second before
-	 * trying to connect.  This should keep both of us from
-	 * trying to connect at the same time, resulting in two
-	 * VCCs being open.
-	 */
-	if (scsp_cmp_id(&dcsp->sd_server->ss_lsid,
-			&dcsp->sd_dcsid) < 0) {
-		/*
-		 * Our ID is lower--start the VCC open timer for one
-		 * second so we'll try to open the VCC if the DCS
-		 * doesn't do it by then
-		 */
-		HARP_TIMER(&dcsp->sd_open_t, 1, scsp_open_timeout);
-	} else {
-		/*
-		 * Our ID is higher--try to reopen the VCC immediately
-		 */
-		if (scsp_dcs_connect(dcsp)) {
-			/*
-			 * Conncect failed -- set a timer and try
-			 * again later
-			 */
-			HARP_TIMER(&dcsp->sd_open_t, SCSP_Open_Interval,
-					scsp_open_timeout);
-		}
-	}
-
-	return(0);
-}
-
-
-/*
- * HELLO finite state machine action 3
- * Hello timer expired -- send HELLO message, restart hello timer
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message (ignored)
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_03(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int		rc;
-
-	/*
-	 * Send a Hello message
-	 */
-	rc = scsp_send_hello(dcsp);
-	if (rc == 0) {
-		/*
-		 * Success--restart the Hello timer
-		 */
-		HARP_TIMER(&dcsp->sd_hello_h_t, SCSP_HELLO_Interval,
-				scsp_hello_timeout);
-	}
-
-	return(rc);
-}
-
-
-/*
- * HELLO finite state machine action 4
- * Receive timer expired -- if we haven't received any Hellos, notify
- * CA FSM and go to Waiting state;  if we've received Hellos, but we
- * weren't in the receiver ID list, go to Unidirectional state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message (ignored)
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_04(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int	rc = 0;
-
-	/*
-	 * Check whether we'ver received any Hellos lately
-	 */
-	if (dcsp->sd_hello_rcvd) {
-		/*
-		 * We've had Hellos since the receive timer was
-		 * started--go to Unidirectional state
-		 */
-		dcsp->sd_hello_rcvd = 0;
-		dcsp->sd_hello_state = SCSP_HFSM_UNI_DIR;
-	} else {
-		/*
-		 * We haven't seen any Hellos at all from the DCS in
-		 * hello_interval * dead_factor seconds--go to Waiting
-		 * state
-		 */
-		dcsp->sd_hello_state = SCSP_HFSM_WAITING;
-	}
-
-	/*
-	 * Notify the CA FSM
-	 */
-	rc = scsp_cafsm(dcsp, SCSP_CAFSM_HELLO_DOWN, (void *)0);
-
-	return(rc);
-}
-
-
-/*
- * HELLO finite state machine action 5
- * Message received -- Ignore all but HELLO messages;  if local server
- * is in receiver list, notify CA FSM and go to Bidirectional state;
- * otherwise, go to Unidirectional state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_05(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int	rc;
-	Scsp_id	*ridp;
-
-	/*
-	 * Null message pointer means message decode failed, so
-	 * message must have been invalid.  Go to Waiting state.
-	 */
-	if (msg == (Scsp_msg *)0) {
-		dcsp->sd_hello_state = SCSP_HFSM_WAITING;
-		HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-		return(0);
-	}
-
-	/*
-	 * Ignore the message if it isn't a Hello
-	 */
-	if (msg->sc_msg_type != SCSP_HELLO_MSG) {
-		return(0);
-	}
-
-	/*
-	 * Save relevant information about DCS, but don't let him give
-	 * us zero for timeout values
-	 */
-	if (msg->sc_hello->hello_int) {
-		dcsp->sd_hello_int = msg->sc_hello->hello_int;
-	} else {
-		dcsp->sd_hello_int = 1;
-	}
-	if (msg->sc_hello->dead_factor) {
-		dcsp->sd_hello_df = msg->sc_hello->dead_factor;
-	} else {
-		dcsp->sd_hello_df = 1;
-	}
-	dcsp->sd_dcsid = msg->sc_hello->hello_mcp.sid;
-
-	/*
-	 * Check the message for the local server's ID
-	 */
-	for (ridp = &msg->sc_hello->hello_mcp.rid;
-			ridp;
-			ridp = ridp->next) {
-		if (scsp_cmp_id(&dcsp->sd_server->ss_lsid, ridp) == 0) {
-			/*
-			 * Cancel and restart the receive timer
-			 */
-			HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-			HARP_TIMER(&dcsp->sd_hello_rcv_t,
-					dcsp->sd_hello_int * dcsp->sd_hello_df,
-					scsp_hello_rcv_timeout);
-
-			/*
-			 * Go to Bidirectional state and notify the
-			 * CA FSM that the connection is up
-			 */
-			dcsp->sd_hello_state = SCSP_HFSM_BI_DIR;
-			rc = scsp_cafsm(dcsp,
-					SCSP_CAFSM_HELLO_UP,
-					(void *)0);
-			return(rc);
-		}
-	}
-
-	/*
-	 * We weren't in the receiver ID list, so go to
-	 * Unidirectional state
-	 */
-	dcsp->sd_hello_state = SCSP_HFSM_UNI_DIR;
-
-	return(0);
-}
-
-
-/*
- * HELLO finite state machine action 6
- * Message received -- if message is not a HELLO, pass it to the CA
- * FSM;  otherwise, if local server is not in receiver list, notify
- * CA FSM and go to Unidirectional state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	msg	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_hello_act_06(dcsp, msg)
-	Scsp_dcs	*dcsp;
-	Scsp_msg	*msg;
-{
-	int	rc = 0, rcv_found;
-	Scsp_id	*ridp;
-
-	/*
-	 * Null message pointer means message decode failed, so
-	 * message must have been invalid.  Go to Waiting state.
-	 */
-	if (msg == (Scsp_msg *)0) {
-		HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-		dcsp->sd_hello_state = SCSP_HFSM_WAITING;
-		rc = scsp_cafsm(dcsp, SCSP_CAFSM_HELLO_DOWN, (void *)0);
-		return(rc);
-	}
-
-	/*
-	 * Process the message depending on its type
-	 */
-	switch(msg->sc_msg_type) {
-	case SCSP_CA_MSG:
-		rc = scsp_cafsm(dcsp, SCSP_CAFSM_CA_MSG, (void *)msg);
-		break;
-	case SCSP_CSU_REQ_MSG:
-		rc = scsp_cafsm(dcsp, SCSP_CAFSM_CSU_REQ, (void *)msg);
-		break;
-	case SCSP_CSU_REPLY_MSG:
-		rc = scsp_cafsm(dcsp, SCSP_CAFSM_CSU_REPLY,
-				(void *)msg);
-		break;
-	case SCSP_CSUS_MSG:
-		rc = scsp_cafsm(dcsp, SCSP_CAFSM_CSUS_MSG, (void *)msg);
-		break;
-	case SCSP_HELLO_MSG:
-		/*
-		 * Make sure DCS info is consistent.  The sender ID,
-		 * family ID, protocol ID, and server group ID are
-		 * checked.
-		 */
-		if (scsp_cmp_id(&msg->sc_hello->hello_mcp.sid,
-					&dcsp->sd_dcsid) ||
-				(msg->sc_hello->family_id !=
-					dcsp->sd_server->ss_fid) ||
-				(msg->sc_hello->hello_mcp.pid !=
-					dcsp->sd_server->ss_pid) ||
-				(msg->sc_hello->hello_mcp.sgid !=
-					dcsp->sd_server->ss_sgid)) {
-			/*
-			 * Bad info--revert to waiting state
-			 */
-			HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-			dcsp->sd_hello_state = SCSP_HFSM_WAITING;
-			rc = scsp_cafsm(dcsp,
-					SCSP_CAFSM_HELLO_DOWN,
-					(void *)0);
-			return(rc);
-		}
-
-		/*
-		 * Mark the arrival of the Hello message
-		 */
-		dcsp->sd_hello_rcvd = 1;
-
-		/*
-		 * Check the message for the local server's ID
-		 */
-		for (ridp = &msg->sc_hello->hello_mcp.rid,
-					rcv_found = 0;
-				ridp;
-				ridp = ridp->next) {
-			rcv_found = (scsp_cmp_id(ridp,
-				&dcsp->sd_server->ss_lsid) == 0);
-		}
-
-		if (rcv_found) {
-			/*
-			 * The LS ID was in the list of receiver IDs--
-			 * Reset the Hello receive timer
-			 */
-			dcsp->sd_hello_rcvd = 0;
-			HARP_CANCEL(&dcsp->sd_hello_rcv_t);
-			HARP_TIMER(&dcsp->sd_hello_rcv_t,
-					dcsp->sd_hello_int *
-						dcsp->sd_hello_df,
-					scsp_hello_rcv_timeout);
-		}
-		break;
-	}
-
-	return(rc);
-}