Remove netatm from HEAD as it is not MPSAFE and relies on the now removed

NET_NEEDS_GIANT.  netatm has been disconnected from the build for ten
months in HEAD/RELENG_7.  Specifics:

- netatm include files
- netatm command line management tools
- libatm
- ATM parts in rescue and sysinstall
- sample configuration files and documents
- kernel support as a module or in NOTES
- netgraph wrapper nodes for netatm
- ctags data for netatm.
- netatm-specific device drivers.

MFC after:	3 weeks
Reviewed by:	bz
Discussed with:	bms, bz, harti

1 files changed, 0 insertions, 1439 deletions

diff --git a/usr.sbin/atm/scspd/scsp_cafsm.c b/usr.sbin/atm/scspd/scsp_cafsm.c
deleted file mode 100644
index 05a1e244a9ce..000000000000
--- a/usr.sbin/atm/scspd/scsp_cafsm.c
+++ /dev/null
@@ -1,1439 +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
- * ----------------------------------------------------
- *
- * Cache Alignment 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/port.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 <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-
-#include "scsp_msg.h"
-#include "scsp_if.h"
-#include "scsp_var.h"
-
-#ifndef lint
-__RCSID("@(#) $FreeBSD$");
-#endif
-
-
-/*
- * CA FSM actions
- */
-#define	CA_ACTION_CNT	20
-int	scsp_ca_act_00(Scsp_dcs *, void *);
-int	scsp_ca_act_01(Scsp_dcs *, void *);
-int	scsp_ca_act_02(Scsp_dcs *, void *);
-int	scsp_ca_act_03(Scsp_dcs *, void *);
-int	scsp_ca_act_04(Scsp_dcs *, void *);
-int	scsp_ca_act_05(Scsp_dcs *, void *);
-int	scsp_ca_act_06(Scsp_dcs *, void *);
-int	scsp_ca_act_07(Scsp_dcs *, void *);
-int	scsp_ca_act_08(Scsp_dcs *, void *);
-int	scsp_ca_act_09(Scsp_dcs *, void *);
-int	scsp_ca_act_10(Scsp_dcs *, void *);
-int	scsp_ca_act_11(Scsp_dcs *, void *);
-int	scsp_ca_act_12(Scsp_dcs *, void *);
-int	scsp_ca_act_13(Scsp_dcs *, void *);
-int	scsp_ca_act_14(Scsp_dcs *, void *);
-int	scsp_ca_act_15(Scsp_dcs *, void *);
-int	scsp_ca_act_16(Scsp_dcs *, void *);
-int	scsp_ca_act_17(Scsp_dcs *, void *);
-int	scsp_ca_act_18(Scsp_dcs *, void *);
-int	scsp_ca_act_19(Scsp_dcs *, void *);
-
-static int (*scsp_ca_act_vec[CA_ACTION_CNT])() = {
-	scsp_ca_act_00,
-	scsp_ca_act_01,
-	scsp_ca_act_02,
-	scsp_ca_act_03,
-	scsp_ca_act_04,
-	scsp_ca_act_05,
-	scsp_ca_act_06,
-	scsp_ca_act_07,
-	scsp_ca_act_08,
-	scsp_ca_act_09,
-	scsp_ca_act_10,
-	scsp_ca_act_11,
-	scsp_ca_act_12,
-	scsp_ca_act_13,
-	scsp_ca_act_14,
-	scsp_ca_act_15,
-	scsp_ca_act_16,
-	scsp_ca_act_17,
-	scsp_ca_act_18,
-	scsp_ca_act_19
-};
-
-/*
- * CA FSM state table
- */
-static int ca_state_table[SCSP_CAFSM_EVENT_CNT][SCSP_CAFSM_STATE_CNT] = {
-	/* 0   1   2   3   4   5	      */
-	{  1,  1,  1,  1,  1,  1 },	/*  0 */
-	{  2,  2,  2,  2,  2,  2 },	/*  1 */
-	{  0,  3,  4,  5, 15, 15 },	/*  2 */
-	{  0, 17, 17, 17,  7,  7 },	/*  3 */
-	{  0, 17, 17, 17,  8,  8 },	/*  4 */
-	{  0, 17, 17, 17, 10, 10 },	/*  5 */
-	{  0,  6,  6,  0,  9,  9 },	/*  6 */
-	{  0,  0,  0,  0, 12, 12 },	/*  7 */
-	{  0,  0,  0,  0, 13, 13 },	/*  8 */
-	{ 18, 14, 14, 14, 11, 11 },	/*  9 */
-	{  0, 19,  0,  0, 16, 16 },	/* 10 */
-};
-
-
-/*
- * Cache Alignment finite state machine
- *
- * Arguments:
- *	dcsp	pointer to a DCS control block for the neighbor
- *	event	the event which has occurred
- *	p	pointer to further parameter, if there is one
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_cafsm(dcsp, event, p)
-	Scsp_dcs	*dcsp;
-	int		event;
-	void		*p;
-{
-	int	action, rc, state;
-
-	/*
-	 * Select an action from the state table
-	 */
-	state = dcsp->sd_ca_state;
-	action = ca_state_table[event][state];
-	if (scsp_trace_mode & SCSP_TRACE_CAFSM) {
-		scsp_trace("CAFSM: state=%d, event=%d, action=%d\n",
-				state, event, action);
-	}
-	if (action >= CA_ACTION_CNT || action < 0) {
-		scsp_log(LOG_ERR, "CA FSM--invalid action state=%d, event=%d, action=%d",
-				state, event, action);
-		abort();
-	}
-
-	/*
-	 * Perform the selected action
-	 */
-	rc = scsp_ca_act_vec[action](dcsp, p);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 0
- * Unexpected action -- log an error message and go to Master/Slave
- * Negotiation.  The unexpected action is probably from a protocol
- * error.
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	EOPNOTSUPP	always returns EOPNOTSUPP
- *
- */
-int
-scsp_ca_act_00(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int	rc;
-
-	/*
-	 * Log an error message
-	 */
-	scsp_log(LOG_ERR, "CA FSM error--unexpected action, state=%d",
-			dcsp->sd_ca_state);
-
-	/*
-	 * Set the new state
-	 */
-	dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-
-	/*
-	 * Clear out the DCS block
-	 */
-	scsp_dcs_cleanup(dcsp);
-
-	/*
-	 * Notify the client I/F FSM
-	 */
-	rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_DOWN, (Scsp_msg *)0,
-			(Scsp_if_msg *)0);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 1
- * Hello FSM has reached Bidirectional state -- go to Master/Slave
- * Negotiation state, make a copy of the client's cache, send first CA
- * message.
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_01(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		i, rc;
-	Scsp_cse	*csep, *dupp;
-
-	/*
-	 * Set the new state
-	 */
-	dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-
-	/*
-	 * Make a copy of client's cache entries for cache alignment
-	 */
-	for (i = 0; i < SCSP_HASHSZ; i++) {
-		for (csep = dcsp->sd_server->ss_cache[i];
-				csep; csep = csep->sc_next) {
-			dupp = scsp_dup_cse(csep);
-			LINK2TAIL(dupp, Scsp_cse, dcsp->sd_ca_csas,
-						sc_next);
-		}
-	}
-
-	/*
-	 * Select an initial sequence number
-	 */
-	dcsp->sd_ca_seq = (int)time((time_t *)0);
-
-	/*
-	 * Send a CA message
-	 */
-	rc = scsp_send_ca(dcsp);
-	if (rc == 0) {
-		HARP_TIMER(&dcsp->sd_ca_rexmt_t, dcsp->sd_ca_rexmt_int,
-				scsp_ca_retran_timeout);
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 2
- * Hello FSM has gone down -- go to Down state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_02(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc;
-
-	/*
-	 * Set the new state
-	 */
-	dcsp->sd_ca_state = SCSP_CAFSM_DOWN;
-
-	/*
-	 * Clear out the DCS block
-	 */
-	scsp_dcs_cleanup(dcsp);
-
-	/*
-	 * Notify the client I/F FSM
-	 */
-	rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_DOWN, (Scsp_msg *)0,
-			(Scsp_if_msg *)0);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 3
- * CA message received -- select Cache Summarize Master or Slave state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_03(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc = 0;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-
-	/*
-	 * Check for slave role for LS
-	 */
-	if (msg->sc_ca->ca_m &&
-			msg->sc_ca->ca_i &&
-			msg->sc_ca->ca_o &&
-			msg->sc_ca->ca_mcp.rec_cnt == 0 &&
-			scsp_cmp_id(&msg->sc_ca->ca_mcp.sid,
-				&msg->sc_ca->ca_mcp.rid) > 0) {
-
-		/*
-		 * Stop the retransmit timer
-		 */
-		HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-
-		/*
-		 * Set the new state
-		 */
-		dcsp->sd_ca_state = SCSP_CAFSM_SLAVE;
-		(void)scsp_cfsm(dcsp, SCSP_CIFSM_CA_SUMM,
-				(Scsp_msg *)0, (Scsp_if_msg *)0);
-
-		/*
-		 * Save the master's sequence number
-		 */
-		dcsp->sd_ca_seq = msg->sc_ca->ca_seq;
-
-		/*
-		 * Send a CA message
-		 */
-		rc = scsp_send_ca(dcsp);
-	} else
-	/*
-	 * Check for master role for LS
-	 */
-	if (!msg->sc_ca->ca_m &&
-			!msg->sc_ca->ca_i &&
-			scsp_cmp_id(&msg->sc_ca->ca_mcp.sid,
-				&msg->sc_ca->ca_mcp.rid) < 0) {
-		/*
-		 * Stop the retransmit timer
-		 */
-		HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-
-		/*
-		 * Set the new state
-		 */
-		dcsp->sd_ca_state = SCSP_CAFSM_MASTER;
-		rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_SUMM,
-				(Scsp_msg *)0, (Scsp_if_msg *)0);
-
-		/*
-		 * Process the CA message
-		 */
-		scsp_process_ca(dcsp, msg->sc_ca);
-
-		/*
-		 * Increment the sequence number
-		 */
-		dcsp->sd_ca_seq++;
-
-		/*
-		 * Send a CA in reply
-		 */
-		rc = scsp_send_ca(dcsp);
-		if (rc == 0) {
-			HARP_TIMER(&dcsp->sd_ca_rexmt_t,
-					dcsp->sd_ca_rexmt_int,
-					scsp_ca_retran_timeout);
-		}
-	} else {
-		/*
-		 * Ignore the message, go to Master/Slave Negotiation
-		 */
-		dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 4
- * CA message received while in Cache Summarize Master state -- process
- * CA message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_04(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc = 0;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-
-	/*
-	 * If the other side thinks he's the master, or if the
-	 * initialization bit is set, or if the message is out
-	 * of sequence, go back to Master/Slave Negotiation state
-	 */
-	if (msg->sc_ca->ca_m || msg->sc_ca->ca_i ||
-			msg->sc_ca->ca_seq < dcsp->sd_ca_seq - 1 ||
-			msg->sc_ca->ca_seq > dcsp->sd_ca_seq) {
-		HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-		dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-		scsp_dcs_cleanup(dcsp);
-		return(scsp_ca_act_01(dcsp, (Scsp_msg *)0));
-	}
-
-	/*
-	 * Ignore any duplicate messages
-	 */
-	if (msg->sc_ca->ca_seq == dcsp->sd_ca_seq - 1) {
-		return(0);
-	}
-
-	/*
-	 * Stop the retransmission timer
-	 */
-	HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-
-	/*
-	 * Process the CA message
-	 */
-	scsp_process_ca(dcsp, msg->sc_ca);
-
-	/*
-	 * Increment the CA sequence number
-	 */
-	dcsp->sd_ca_seq++;
-
-	/*
-	 * If we have no more CSAS records to send and the slave sent
-	 * a message with the 'O' bit off, we're done with Summarize
-	 * state
-	 */
-	if (!dcsp->sd_ca_csas && !msg->sc_ca->ca_o) {
-		/*
-		 * Free any CA message saved for retransmission
-		 */
-		if (dcsp->sd_ca_rexmt_msg) {
-			scsp_free_msg(dcsp->sd_ca_rexmt_msg);
-			dcsp->sd_ca_rexmt_msg = (Scsp_msg *)0;
-		}
-
-		/*
-		 * If the CRL is empty, we go directly to Aligned state;
-		 * otherwise, we go to Update Cache and send a CSUS
-		 */
-		if (!dcsp->sd_crl) {
-			/*
-			 * Go to Aligned state
-			 */
-			dcsp->sd_ca_state = SCSP_CAFSM_ALIGNED;
-			rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_ALIGN,
-					(Scsp_msg *)0,
-					(Scsp_if_msg *)0);
-		} else {
-			/*
-			 * Go to Cache Update state
-			 */
-			dcsp->sd_ca_state = SCSP_CAFSM_UPDATE;
-			(void)scsp_cfsm(dcsp, SCSP_CIFSM_CA_UPD,
-					(Scsp_msg *)0,
-					(Scsp_if_msg *)0);
-			rc = scsp_send_csus(dcsp);
-		}
-	} else {
-		/*
-		 * There are more CSAS records to be exchanged--
-		 * continue the cache exchange
-		 */
-		rc = scsp_send_ca(dcsp);
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 5
- * CA message received while in Cache Summarize Slave state -- process
- * CA message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_05(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc = 0;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-
-	/*
-	 * If the other side thinks we're the master, or if the
-	 * initialization bit is set, or if the message is out
-	 * of sequence, go back to Master/Slave Negotiation state
-	 */
-	if (!msg->sc_ca->ca_m || msg->sc_ca->ca_i ||
-			msg->sc_ca->ca_seq < dcsp->sd_ca_seq ||
-			msg->sc_ca->ca_seq > dcsp->sd_ca_seq + 1) {
-		HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-		dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-		scsp_dcs_cleanup(dcsp);
-		return(scsp_ca_act_01(dcsp, (Scsp_msg *)0));
-	}
-
-	/*
-	 * If this is a duplicate, retransmit the last message
-	 */
-	if (msg->sc_ca->ca_seq == dcsp->sd_ca_seq) {
-		if (dcsp->sd_ca_rexmt_msg) {
-			rc = scsp_send_msg(dcsp, dcsp->sd_ca_rexmt_msg);
-			if (rc == 0) {
-				HARP_TIMER(&dcsp->sd_ca_rexmt_t,
-						dcsp->sd_ca_rexmt_int,
-						scsp_ca_retran_timeout);
-			}
-		}
-		return(rc);
-	}
-
-	/*
-	 * Free the last CA message
-	 */
-	if (dcsp->sd_ca_rexmt_msg) {
-		scsp_free_msg(dcsp->sd_ca_rexmt_msg);
-		dcsp->sd_ca_rexmt_msg = (Scsp_msg *)0;
-	}
-
-	/*
-	 * Process the CA message
-	 */
-	scsp_process_ca(dcsp, msg->sc_ca);
-
-	/*
-	 * Increment the CA sequence number
-	 */
-	dcsp->sd_ca_seq++;
-
-	/*
-	 * Answer the CA message
-	 */
-	rc = scsp_send_ca(dcsp);
-	if (rc)
-		return(rc);
-
-	/*
-	 * If we're done sending CSAS records and the other side is,
-	 * too, we're done with Summarize state
-	 */
-	if (!dcsp->sd_ca_csas && !msg->sc_ca->ca_o) {
-		/*
-		 * If the CRL is empty, we go directly to Aligned state;
-		 * otherwise, we go to Update Cache and send a CSUS
-		 */
-		if (!dcsp->sd_crl) {
-			/*
-			 * Go to Aligned state
-			 */
-			dcsp->sd_ca_state = SCSP_CAFSM_ALIGNED;
-			rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_ALIGN,
-					(Scsp_msg *)0,
-					(Scsp_if_msg *)0);
-		} else {
-			/*
-			 * Go to Cache Update state
-			 */
-			dcsp->sd_ca_state = SCSP_CAFSM_UPDATE;
-			HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-			HARP_TIMER(&dcsp->sd_ca_rexmt_t,
-					dcsp->sd_ca_rexmt_int,
-					scsp_ca_retran_timeout);
-			(void)scsp_cfsm(dcsp, SCSP_CIFSM_CA_UPD,
-					(Scsp_msg *)0,
-					(Scsp_if_msg *)0);
-			rc = scsp_send_csus(dcsp);
-		}
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 6
- * Retransmit timer expired -- retransmit last CA message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_06(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int	rc;
-
-	/*
-	 * Resend the CA message
-	 */
-	rc = scsp_send_msg(dcsp, dcsp->sd_ca_rexmt_msg);
-
-	/*
-	 * Restart the retransmit timer
-	 */
-	if (rc == 0) {
-		HARP_TIMER(&dcsp->sd_ca_rexmt_t, dcsp->sd_ca_rexmt_int,
-				scsp_ca_retran_timeout);
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 7
- * CSU Solicit received -- send it to the client interface FSM
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_07(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-
-	/*
-	 * Cancel the CA retransmit timer and free any CA message
-	 * saved for retransmission
-	 */
-	if (dcsp->sd_ca_rexmt_msg) {
-		HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-		scsp_free_msg(dcsp->sd_ca_rexmt_msg);
-		dcsp->sd_ca_rexmt_msg = (Scsp_msg *)0;
-	}
-
-	/*
-	 * Pass the CSUS to the client interface FSM
-	 */
-	rc = scsp_cfsm(dcsp, SCSP_CIFSM_CSU_SOL, msg,
-			(Scsp_if_msg *)0);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 8
- * CSU Request received -- pass it to the client interface FSM
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_08(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-	Scsp_csa	*csap;
-
-	/*
-	 * Check whether this messages answers a CSUS
-	 */
-	scsp_csus_ack(dcsp, msg);
-
-	/*
-	 * If all CSAs requestd in CSUS messages have been
-	 * received, the cache is aligned, so go to Aligned State
-	 */
-	if (!dcsp->sd_csus_rexmt_msg && !dcsp->sd_crl &&
-			dcsp->sd_ca_state != SCSP_CAFSM_ALIGNED) {
-		dcsp->sd_ca_state = SCSP_CAFSM_ALIGNED;
-		rc = scsp_cfsm(dcsp, SCSP_CIFSM_CA_ALIGN,
-				(Scsp_msg *)0, (Scsp_if_msg *)0);
-	}
-
-	/*
-	 * Pass the CSU Req to the client interface FSM
-	 */
-	rc = scsp_cfsm(dcsp, SCSP_CIFSM_CSU_REQ, msg,
-			(Scsp_if_msg *)0);
-
-	/*
-	 * Move the CSA chain from the message to the list of
-	 * requests that need acknowledgements
-	 */
-	for (csap = msg->sc_csu_msg->csu_csa_rec; csap;
-			csap = csap->next) {
-		LINK2TAIL(csap, Scsp_csa, dcsp->sd_csu_ack_pend, next);
-	}
-	msg->sc_csu_msg->csu_csa_rec = (Scsp_csa *)0;
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 9
- * CA Retransmit timer expired in Update Cache or Aligned state--free
- * the saved CA message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_09(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	/*
-	 * Free any CA message saved for retransmission
-	 */
-	if (dcsp->sd_ca_rexmt_msg) {
-		scsp_free_msg(dcsp->sd_ca_rexmt_msg);
-		dcsp->sd_ca_rexmt_msg = (Scsp_msg *)0;
-	}
-
-	return(0);
-}
-
-
-/*
- * CA finite state machine action 10
- * CSU Reply received -- Process the message
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to received message
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_10(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc = 0;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-	Scsp_csu_rexmt	*rxp, *next_rxp;
-	Scsp_csa	*csap, *next_csap, *mcp;
-
-	/*
-	 * Dequeue acknowledged CSAs.  For each CSAS in the received
-	 * message, find the corresponding CSA on the CSU Request
-	 * retransmit queue.  Remove the CSA from the queue;  if this
-	 * results in the retransmit queue entry being empty, delete
-	 * the entry.  If the DCS has a newer CSA, send a CSUS to
-	 * request it.
-	 *
-	 * Caution--potentially confusing lack of indentation ahead.
-	 */
-	for (mcp = msg->sc_csu_msg->csu_csa_rec; mcp;
-			mcp = mcp->next) {
-	for (rxp = dcsp->sd_csu_rexmt; rxp; rxp = next_rxp) {
-	next_rxp = rxp->sr_next;
-	for (csap = rxp->sr_csa; csap; csap = next_csap) {
-		next_csap = csap->next;
-		if (scsp_cmp_key(&csap->key, &mcp->key) ||
-				scsp_cmp_id(&csap->oid, &mcp->oid))
-			continue;
-		/*
-		 * Found a CSA whose key and ID are equal to
-		 * those in the CSU Reply
-		 */
-		if (csap->seq == mcp->seq) {
-			/*
-			 * The queued seq no is equal to the
-			 * received seq no--the CSA is acknowledged
-			 */
-			UNLINK(csap, Scsp_csa, rxp->sr_csa, next);
-			SCSP_FREE_CSA(csap);
-		} else if (csap->seq < mcp->seq) {
-			/*
-			 * Queued seq no is less than received.
-			 * We must dequeue the CSA and send a
-			 * CSUS to request the more-up-to-date
-			 * cache entry.
-			 */
-			UNLINK(mcp, Scsp_csa,
-					msg->sc_csu_msg->csu_csa_rec,
-					next);
-			LINK2TAIL(mcp, Scsp_csa, dcsp->sd_crl, next);
-			UNLINK(csap, Scsp_csa, rxp->sr_csa, next);
-			SCSP_FREE_CSA(csap);
-			if (!dcsp->sd_csus_rexmt_msg) {
-				rc = scsp_send_csus(dcsp);
-				if (rc) {
-					return(rc);
-				}
-			}
-		}
-			/*
-			 * Queued seq no is greater than
-			 * received.  Ignore the received CSAS.
-			 */
-
-		/*
-		 * If the retransmission block is empty, stop the
-		 * timer and free it
-		 */
-		if (!rxp->sr_csa) {
-			HARP_CANCEL(&rxp->sr_t);
-			UNLINK(rxp, Scsp_csu_rexmt,
-					dcsp->sd_csu_rexmt, sr_next);
-			free(rxp);
-		}
-
-		break;
-	} /* for (csap = ... */
-	} /* for (rxp = ... */
-	} /* for (mcp = ... */
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 11
- * Updated cache entry -- update the summary cache and send a
- * CSU Request
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to CSA describing new cache entry
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_11(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc, state;
-	Scsp_csa	*csap =  (Scsp_csa *)p;
-	Scsp_cse	*csep;
-
-	/*
-	 * Get the state of the CSA
-	 */
-	switch(dcsp->sd_server->ss_pid) {
-	case SCSP_PROTO_ATMARP:
-		state = csap->atmarp_data->sa_state;
-		break;
-	default:
-		SCSP_FREE_CSA(csap);
-		return(EINVAL);
-	}
-
-	if (state < SCSP_ASTATE_NEW || state > SCSP_ASTATE_DEL) {
-		SCSP_FREE_CSA(csap);
-		return(EINVAL);
-	}
-
-	/*
-	 * Look up the cache summary entry for the CSA
-	 */
-	SCSP_LOOKUP(dcsp->sd_server, &csap->key, csep);
-
-	/*
-	 * Process ATMARP entries
-	 */
-	if (dcsp->sd_server->ss_pid == SCSP_PROTO_ATMARP) {
-		switch(state) {
-		case SCSP_ASTATE_NEW:
-		case SCSP_ASTATE_UPD:
-			/*
-			 * Add the entry if we don't have it already
-			 */
-			if (!csep) {
-				csep = calloc(1, sizeof(Scsp_cse));
-				if (csep == NULL)
-					scsp_mem_err("scsp_ca_act_11: sizeof(Scsp_cse)");
-				
-				csep->sc_key = csap->key;
-				SCSP_ADD(dcsp->sd_server, csep);
-			}
-
-			/*
-			 * Update the cache summary entry
-			 */
-			csep->sc_seq = csap->seq;
-			csep->sc_oid = csap->oid;
-			break;
-		case SCSP_ASTATE_DEL:
-			/*
-			 * Delete any entry, but don't send the
-			 * delete to the DCS
-			 */
-			if (csep) {
-				SCSP_DELETE(dcsp->sd_server, csep);
-				free(csep);
-			}
-
-			SCSP_FREE_CSA(csap);
-			return(0);
-		}
-	}
-
-	/*
-	 * Send the CSA in a CSU Request
-	 */
-	csap->trans_ct = 0;
-	rc = scsp_send_csu_req(dcsp, csap);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 12
- * CSUS retransmit timer expired--send a CSUS with any pending CSA
- * records
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_12(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int	rc;
-
-	rc = scsp_send_csus(dcsp);
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 13
- * CSU retransmit timer fired in Update or Aligned state--
- * retransmit CSU Req
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to retransmission block whose timer fired
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_13(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc = 0;
-	Scsp_csu_rexmt	*rxp = (Scsp_csu_rexmt *)p;
-	Scsp_csa	*csap, *csap1, *next_csap;
-
-	/*
-	 * Unlink and free the retransmit request block
-	 */
-	csap = rxp->sr_csa;
-	UNLINK(rxp, Scsp_csu_rexmt, dcsp->sd_csu_rexmt, sr_next);
-	free(rxp);
-
-	/*
-	 * Increment the transmission count for the CSAs in the request
-	 */
-	for (csap1 = csap; csap1; csap1 = next_csap) {
-		next_csap = csap1->next;
-		csap1->trans_ct++;
-		if (csap1->trans_ct >= dcsp->sd_csu_rexmt_max) {
-			/*
-			 * We've already sent this as many times as
-			 * the limit allows.  Drop this CSA.
-			 */
-			UNLINK(csap1, Scsp_csa, csap, next);
-			SCSP_FREE_CSA(csap1);
-		}
-	}
-
-	/*
-	 * Send another CSU Request with the CSA list, if it isn't
-	 * empty now
-	 */
-	if (csap) {
-		rc = scsp_send_csu_req(dcsp, csap);
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 14
- * Updated cache entry in Master/Slave Negotiation, Master, or
- * Slave state--add entry to cache and CSA list
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to new cache summary entry
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_14(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	Scsp_csa        *csap =  (Scsp_csa *)p;
-	Scsp_cse	*csep, *csep1;
-
-	/*
-	 * Check to see whether we already have this
-	 */
-	SCSP_LOOKUP(dcsp->sd_server, &csap->key, csep);
-
-	/*
-	 * If we don't already have it and it's not being deleted,
-	 * build a new cache summary entry
-	 */
-	if (!csep && !csap->null) {
-		/*
-		 * Get memory for a new entry
-		 */
-		csep = calloc(1, sizeof(Scsp_cse));
-		if (csep == NULL)
-			scsp_mem_err("scsp_ca_act_14: sizeof(Scsp_cse)");
-
-		/*
-		 * Fill out the new cache entry
-		 */
-		csep->sc_seq = csap->seq;
-		csep->sc_key = csap->key;
-		csep->sc_oid = csap->oid;
-
-		/*
-		 * Duplicate the new cache entry
-		 */
-		csep1 = scsp_dup_cse(csep);
-
-		/*
-		 * Add entry to the summary cache and the CSAS list
-		 */
-		SCSP_ADD(dcsp->sd_server, csep);
-		LINK2TAIL(csep1, Scsp_cse, dcsp->sd_ca_csas, sc_next);
-	} else {
-		/*
-		 * We already have the entry.  Find it on the CSAS
-		 * list.
-		 */
-		for (csep1 = dcsp->sd_ca_csas; csep1;
-				csep1 = csep1->sc_next) {
-			if (scsp_cmp_key(&csep->sc_key,
-					&csep1->sc_key) == 0)
-				break;
-		}
-
-		/*
-		 * Update or delete the entry
-		 */
-		if (csap->null) {
-			/*
-			 * The null flag is set--delete the entry
-			 */
-			SCSP_DELETE(dcsp->sd_server, csep);
-			free(csep);
-			if (csep1) {
-				UNLINK(csep1, Scsp_cse,
-						dcsp->sd_ca_csas,
-						sc_next);
-				free(csep1);
-			}
-		} else {
-			/*
-			 * Update the entry
-			 */
-			csep->sc_seq = csap->seq;
-			csep->sc_oid = csap->oid;
-			if (!csep1) {
-				csep1 = scsp_dup_cse(csep);
-				LINK2TAIL(csep1, Scsp_cse,
-					dcsp->sd_ca_csas, sc_next);
-			} else {
-				csep1->sc_seq = csap->seq;
-				csep1->sc_oid = csap->oid;
-			}
-		}
-	}
-
-	return(0);
-}
-
-
-/*
- * CA finite state machine action 15
- * CA message received in Update Cache state--if we have a saved CA
- * message, retransmit it;  otherwise, go to Master/Slave Negotiation
- * state
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_15(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		rc;
-	Scsp_msg	*msg = (Scsp_msg *)p;
-
-	/*
-	 * If we don't have a saved CA message, or the sequence no. in
-	 * the received message isn't right, fall back to Master/Slave
-	 * Negotiation state
-	 */
-	if (!dcsp->sd_ca_rexmt_msg ||
-			msg->sc_ca->ca_seq != dcsp->sd_ca_seq) {
-		dcsp->sd_ca_state = SCSP_CAFSM_NEG;
-		scsp_dcs_cleanup(dcsp);
-		rc = scsp_ca_act_01(dcsp, (Scsp_msg *)0);
-	} else {
-		/*
-		 * Retransmit the saved CA message and reset the
-		 * CA timer
-		 */
-		rc = scsp_send_msg(dcsp, dcsp->sd_ca_rexmt_msg);
-		if (rc == 0) {
-			HARP_CANCEL(&dcsp->sd_ca_rexmt_t);
-			HARP_TIMER(&dcsp->sd_ca_rexmt_t,
-					dcsp->sd_ca_rexmt_int,
-					scsp_ca_retran_timeout);
-		}
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 16
- * Update Response received from client in Update Cache or Aligned
- * state.  Move the acknowledged CSA to the acknowledged queue.  If
- * the list of CSAs pending acknowledgement is empty, send a CSU
- * Reply.
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to message from client
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_16(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	int		found, rc = 0;
-	Scsp_if_msg	*cmsg = (Scsp_if_msg *)p;
-	Scsp_csa	*csap;
-
-	/*
-	 * Find the acknowledged CSA
-	 */      
-	for (csap = dcsp->sd_csu_ack_pend, found = 0; csap && !found;
-			csap = csap->next) {
-		switch (dcsp->sd_server->ss_pid) {
-		case SCSP_PROTO_ATMARP:
-			found = ((scsp_cmp_key(&csap->key,
-				&cmsg->si_atmarp.sa_key) == 0) &&
-				(scsp_cmp_id(&csap->oid,
-				&cmsg->si_atmarp.sa_oid) == 0));
-			break;
-		default: 
-			/*
-			 * Protocol not implemented
-			 */
-			return(EPROTONOSUPPORT);
-		}
-		if (found)
-			break;
-	}
-
-	if (!found) {
-		if (scsp_trace_mode & SCSP_TRACE_CAFSM) {
-			scsp_trace("scsp_ca_act_16: can't find CSA entry for Update Response\n");
-		}
-		return(0);
-	}
-
-	if (cmsg->si_rc == SCSP_RSP_OK) {
-		/*
-		 * The server accepted the cache entry
-		 */
-
-		/*
-		 * Update SCSP's cache
-		 */
-		scsp_update_cache(dcsp, csap);
-
-		/*
-		 * Send this CSA to any other DCSs in the server group
-		 */
-		rc = scsp_propagate_csa(dcsp, csap);
-	}
-
-	/*
-	 * Move the CSA from the ACK pending queue to the
-	 * acknowledged queue
-	 */
-	UNLINK(csap, Scsp_csa, dcsp->sd_csu_ack_pend, next);
-	LINK2TAIL(csap, Scsp_csa, dcsp->sd_csu_ack, next);
-	if (!dcsp->sd_csu_ack_pend) {
-		/*
-		 * ACK pending list is empty--send a CSU Reply
-		 */
-		csap = dcsp->sd_csu_ack;
-		dcsp->sd_csu_ack = (Scsp_csa *)0;
-		rc = scsp_send_csu_reply(dcsp, csap);
-	}
-
-	return(rc);
-}
-
-
-/*
- * CA finite state machine action 17
- * Ignore an event.
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	ignored
- *
- * Returns:
- *	always returns 0
- *
- */
-int
-scsp_ca_act_17(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	return(0);
-}
-
-
-/*
- * CA finite state machine action 18
- * Updated cache entry in Down state--add entry to summary cache
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to new cache summary entry
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_18(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	Scsp_csa        *csap =  (Scsp_csa *)p;
-
-	/*
-	 * Update the cache as appropriate
-	 */
-	scsp_update_cache(dcsp, csap);
-
-	return(0);
-}
-
-
-/*
- * CA finite state machine action 19
- * Update Response received from client in Master/Slave Negotiation
- * state.  Update the cache as appropriate.
- *
- * Arguments:
- *	dcsp	pointer to DCS control block
- *	p	pointer to message from client
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-scsp_ca_act_19(dcsp, p)
-	Scsp_dcs	*dcsp;
-	void		*p;
-{
-	Scsp_if_msg	*cmsg = (Scsp_if_msg *)p;
-	Scsp_csa	*csap;
-
-	/*
-	 * Ignore the message if the client rejected the update
-	 */
-	if (cmsg->si_rc != SCSP_RSP_OK) {
-		return(0);
-	}
-
-	/*
-	 * Create a CSAS from the client's update
-	 */      
-	csap = calloc(1, sizeof(Scsp_csa));
-	if (csap == NULL)
-		scsp_mem_err("scsp_ca_act_19: sizeof(Scsp_csa)");
-	csap->hops = 1;
-	switch (dcsp->sd_server->ss_pid) {
-	case SCSP_PROTO_ATMARP:
-		csap->null = cmsg->si_atmarp.sa_state ==
-				SCSP_ASTATE_DEL;
-		csap->seq = cmsg->si_atmarp.sa_seq;
-		csap->key = cmsg->si_atmarp.sa_key;
-		csap->oid = cmsg->si_atmarp.sa_oid;
-		break;
-	default:
-		return(EINVAL);
-	}
-
-	/*
-	 * Update SCSP's cache
-	 */
-	scsp_update_cache(dcsp, csap);
-
-	return(0);
-}