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, 1010 deletions

diff --git a/sys/netatm/uni/unisig_msg.c b/sys/netatm/uni/unisig_msg.c
deleted file mode 100644
index 806102b..0000000
--- a/sys/netatm/uni/unisig_msg.c
+++ /dev/null
@@ -1,1010 +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.
- */
-
-/*
- * ATM Forum UNI 3.0/3.1 Signalling Manager
- * ----------------------------------------
- *
- * Message handling module
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/errno.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/kernel.h>
-#include <sys/sysctl.h>
-#include <net/if.h>
-#include <netatm/port.h>
-#include <netatm/queue.h>
-#include <netatm/atm.h>
-#include <netatm/atm_sys.h>
-#include <netatm/atm_sap.h>
-#include <netatm/atm_cm.h>
-#include <netatm/atm_if.h>
-#include <netatm/atm_vc.h>
-#include <netatm/atm_sigmgr.h>
-#include <netatm/atm_stack.h>
-#include <netatm/atm_pcb.h>
-#include <netatm/atm_var.h>
-
-#include <netatm/uni/unisig_var.h>
-#include <netatm/uni/unisig_msg.h>
-#include <netatm/uni/unisig_mbuf.h>
-#include <netatm/uni/unisig_print.h>
-
-#include <vm/uma.h>
-
-/*
- * Local functions
- */
-static void	unisig_rcv_restart(struct unisig *, struct unisig_msg *);
-static void	unisig_rcv_setup(struct unisig *, struct unisig_msg *);
-
-
-/*
- * net.harp.uni.unisig_print_msg
- *
- * 0 - disable
- * 1 - dump UNI message
- * 2 - dump UNI message + print decoded form
- */
-static int	unisig_print_msg = 0;
-SYSCTL_INT(_net_harp_uni, OID_AUTO, unisig_print_msg, CTLFLAG_RW,
-    &unisig_print_msg, 0, "dump UNI messages");
-
-/*
- * Set a Cause IE based on information in an ATM attribute block
- *
- * Arguments:
- *	iep	pointer to a cause IE
- *	aap	pointer to attribute block
- *
- * Returns:
- *	0	message sent OK
- *	errno	error encountered
- *
- */
-void
-unisig_cause_from_attr(iep, aap)
-	struct ie_generic	*iep;
-	Atm_attributes		*aap;
-{
-	/*
-	 * Copy cause info from attribute block to IE
-	 */
-	iep->ie_ident = UNI_IE_CAUS;
-	iep->ie_coding = aap->cause.v.coding_standard;
-	iep->ie_caus_loc = aap->cause.v.location;
-	iep->ie_caus_cause = aap->cause.v.cause_value;
-}
-
-
-/*
- * Set a Cause IE based on information in a UNI signalling message
- *
- * Arguments:
- *	iep	pointer to a cause IE
- *	msg	pointer to message
- *	cause	cause code for the error
- *
- * Returns:
- *	0	message sent OK
- *	errno	error encountered
- *
- */
-void
-unisig_cause_from_msg(iep, msg, cause)
-	struct ie_generic	*iep;
-	struct unisig_msg	*msg;
-	int			cause;
-{
-	struct ie_generic	*ie1;
-	int			i;
-
-	/*
-	 * Fill out the cause IE fixed fields
-	 */
-	iep->ie_ident = UNI_IE_CAUS;
-	iep->ie_caus_loc = UNI_IE_CAUS_LOC_USER;
-	iep->ie_caus_cause = cause;
-
-	/*
-	 * Set diagnostics if indicated
-	 */
-	switch(cause) {
-	case UNI_IE_CAUS_IECONTENT:
-		iep->ie_caus_diag_len = 0;
-		for (i = 0, ie1 = msg->msg_ie_err;
-				ie1 && i < UNI_IE_CAUS_MAX_ID;
-				ie1 = ie1->ie_next) {
-			if (ie1->ie_err_cause == UNI_IE_CAUS_IECONTENT) {
-				iep->ie_caus_diagnostic[i] =
-						ie1->ie_ident;
-				iep->ie_caus_diag_len++;
-				i++;
-			}
-		}
-		break;
-	case UNI_IE_CAUS_REJECT:
-		iep->ie_caus_diag_len = 2;
-		iep->ie_caus_diagnostic[0] = UNI_IE_EXT_BIT +
-				(UNI_IE_CAUS_RR_USER << UNI_IE_CAUS_RR_SHIFT) +
-				UNI_IE_CAUS_RC_TRANS;
-		iep->ie_caus_diagnostic[1] = 0;
-		break;
-	case UNI_IE_CAUS_MISSING:
-		iep->ie_caus_diag_len = 0;
-		for (i = 0, ie1 = msg->msg_ie_err;
-				ie1 && i < UNI_IE_CAUS_MAX_ID;
-				ie1 = ie1->ie_next) {
-			if (ie1->ie_err_cause == UNI_IE_CAUS_MISSING) {
-				iep->ie_caus_diagnostic[i] =
-						ie1->ie_ident;
-				iep->ie_caus_diag_len++;
-				i++;
-			}
-		}
-	}
-}
-
-
-/*
- * Send a UNISIG signalling message
- *
- * Called to send a Q.2931 message.  This routine encodes the message
- * and hands it to SSCF for transmission.
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	msg	pointer to message
- *
- * Returns:
- *	0	message sent OK
- *	errno	error encountered
- *
- */
-int
-unisig_send_msg(usp, msg)
-	struct unisig		*usp;
-	struct unisig_msg	*msg;
-{
-	int		err = 0;
-	struct usfmt	usf;
-
-	ATM_DEBUG2("unisig_send_msg: msg=%p, type=%d\n", msg,
-			msg->msg_type);
-
-	/*
-	 * Make sure the network is up
-	 */
-	if (usp->us_state != UNISIG_ACTIVE)
-		return(ENETDOWN);
-
-	/*
-	 * Print the message we're sending.
-	 */
-	if (unisig_print_msg)
-		usp_print_msg(msg, UNISIG_MSG_OUT);
-
-	/*
-	 * Convert message to network order
-	 */
-	err = usf_init(&usf, usp, (KBuffer *) 0, USF_ENCODE,
-			usp->us_headout);
-	if (err)
-		return(err);
-
-	err = usf_enc_msg(&usf, msg);
-	if (err) {
-		ATM_DEBUG1("unisig_send_msg: encode failed with %d\n",
-				err);
-		KB_FREEALL(usf.usf_m_base);
-		return(EIO);
-	}
-
-	/*
-	 * Print the converted message
-	 */
-	if (unisig_print_msg > 1)
-		unisig_print_mbuf(usf.usf_m_base);
-
-	/*
-	 * Send the message
-	 */
-	err = atm_cm_saal_data(usp->us_conn, usf.usf_m_base);
-	if (err)
-		KB_FREEALL(usf.usf_m_base);
-
-	return(err);
-}
-
-
-/*
- * Send a SETUP request
- *
- * Build and send a Q.2931 SETUP message.
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	uvp	pointer to VCCB for which the request is being sent
- *
- * Returns:
- *	none
- *
- */
-int
-unisig_send_setup(usp, uvp)
-	struct	unisig		*usp;
-	struct	unisig_vccb	*uvp;
-{
-	int			err = 0;
-	struct unisig_msg	*setup;
-	Atm_attributes		*ap = &uvp->uv_connvc->cvc_attr;
-
-	ATM_DEBUG1("unisig_send_setup: uvp=%p\n", uvp);
-
-	/*
-	 * Make sure required connection attriutes are set
-	 */
-	if (ap->aal.tag != T_ATM_PRESENT ||
-			ap->traffic.tag != T_ATM_PRESENT ||
-			ap->bearer.tag != T_ATM_PRESENT ||
-			ap->called.tag != T_ATM_PRESENT ||
-			ap->qos.tag != T_ATM_PRESENT) {
-		err = EINVAL;
-		setup = NULL;
-		goto done;
-	}
-
-	/*
-	 * Get memory for a SETUP message
-	 */
-	setup = uma_zalloc(unisig_msg_zone, M_ZERO | M_NOWAIT);
-	if (setup == NULL) {
-		err = ENOMEM;
-		goto done;
-	}
-
-	/*
-	 * Fill in the SETUP message
-	 */
-	if (!uvp->uv_call_ref)
-		uvp->uv_call_ref = unisig_alloc_call_ref(usp);
-	setup->msg_call_ref = uvp->uv_call_ref;
-	setup->msg_type = UNI_MSG_SETU;
-
-	/*
-	 * Set IEs from connection attributes
-	 */
-	err = unisig_set_attrs(usp, setup, ap);
-	if (err)
-		goto done;
-
-	/*
-	 * Attach a Calling Party Number IE if the user didn't
-	 * specify one in the attribute block
-	 */
-	if (ap->calling.tag != T_ATM_PRESENT) {
-		setup->msg_ie_cgad = uma_zalloc(unisig_ie_zone, M_NOWAIT);
-		if (setup->msg_ie_cgad == NULL) {
-			err = ENOMEM;
-			goto done;
-		}
-		setup->msg_ie_cgad->ie_ident = UNI_IE_CGAD;
-		ATM_ADDR_COPY(&usp->us_addr,
-				&setup->msg_ie_cgad->ie_cgad_addr);
-		ATM_ADDR_SEL_COPY(&usp->us_addr, 
-				uvp->uv_nif ? uvp->uv_nif->nif_sel : 0, 
-				&setup->msg_ie_cgad->ie_cgad_addr);
-	}
-
-	/*
-	 * Send the SETUP message
-	 */
-	err = unisig_send_msg(usp, setup);
-
-done:
-	if (setup)
-		unisig_free_msg(setup);
-
-	return(err);
-}
-
-
-/*
- * Send a RELEASE message
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	uvp	pointer to VCCB for which the RELEASE is being sent
- *	msg	pointer to UNI signalling message that the RELEASE
- *		responds to (may be NULL)
- *	cause	the reason for the RELEASE; a value of
- *		T_ATM_ABSENT indicates that the cause code is
- *		in the VCC's ATM attributes block
- *
- * Returns:
- *	none
- *
- */
-int
-unisig_send_release(usp, uvp, msg, cause)
-	struct unisig		*usp;
-	struct unisig_vccb	*uvp;
-	struct unisig_msg	*msg;
-	int			cause;
-{
-	int			err = 0;
-	struct unisig_msg	*rls_msg;
-	struct ie_generic	*cause_ie;
-
-	ATM_DEBUG2("unisig_send_release: usp=%p, uvp=%p\n",
-			usp, uvp);
-
-	/*
-	 * Get memory for a RELEASE message
-	 */
-	rls_msg = uma_zalloc(unisig_msg_zone, M_ZERO | M_NOWAIT);
-	if (rls_msg == NULL) {
-		return(ENOMEM);
-	}
-	cause_ie = uma_zalloc(unisig_ie_zone, M_ZERO | M_NOWAIT);
-	if (cause_ie == NULL) {
-		uma_zfree(unisig_msg_zone, rls_msg);
-		return(ENOMEM);
-	}
-
-	/*
-	 * Fill in the RELEASE message
-	 */
-	rls_msg->msg_call_ref = uvp->uv_call_ref;
-	rls_msg->msg_type = UNI_MSG_RLSE;
-	rls_msg->msg_type_flag = 0;
-	rls_msg->msg_type_action = 0;
-	rls_msg->msg_ie_caus = cause_ie;
-
-	/*
-	 * Fill out the cause IE
-	 */
-	cause_ie->ie_ident = UNI_IE_CAUS;
-	if (cause == T_ATM_ABSENT) {
-		unisig_cause_from_attr(cause_ie,
-				&uvp->uv_connvc->cvc_attr);
-	} else {
-		cause_ie->ie_caus_loc = UNI_IE_CAUS_LOC_USER;
-		unisig_cause_from_msg(cause_ie, msg, cause);
-	}
-
-	/*
-	 * Send the RELEASE
-	 */
-	err = unisig_send_msg(usp, rls_msg);
-	unisig_free_msg(rls_msg);
-
-	return(err);
-}
-
-
-/*
- * Send a RELEASE COMPLETE message
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	uvp	pointer to VCCB for which the RELEASE is being sent.
- *		NULL indicates that a VCCB wasn't found for a call
- *		reference value.
- *	msg	pointer to the message which triggered the send
- *	cause	the cause code for the message; a value of
- *		T_ATM_ABSENT indicates that the cause code is
- *		in the VCC's ATM attributes block
- *
- * Returns:
- *	0	success
- *	errno	error encountered
- *
- */
-int
-unisig_send_release_complete(usp, uvp, msg, cause)
-	struct unisig		*usp;
-	struct unisig_vccb	*uvp;
-	struct unisig_msg	*msg;
-	int			cause;
-{
-	int			err = 0;
-	struct unisig_msg	*rls_cmp;
-	struct ie_generic	*cause_ie;
-
-	ATM_DEBUG4("unisig_send_release_complete usp=%p, uvp=%p, msg=%p, cause=%d\n",
-			usp, uvp, msg, cause);
-
-	/*
-	 * Get memory for a RELEASE COMPLETE message
-	 */
-	rls_cmp = uma_zalloc(unisig_msg_zone, M_ZERO | M_NOWAIT);
-	if (rls_cmp == NULL) {
-		return(ENOMEM);
-	}
-	cause_ie = uma_zalloc(unisig_ie_zone, M_ZERO | M_NOWAIT);
-	if (cause_ie == NULL) {
-		uma_zfree(unisig_msg_zone, rls_cmp);
-		return(ENOMEM);
-	}
-
-	/*
-	 * Fill in the RELEASE COMPLETE message
-	 */
-	if (uvp) {
-		rls_cmp->msg_call_ref = uvp->uv_call_ref;
-	} else if (msg) {
-		rls_cmp->msg_call_ref = EXTRACT_CREF(msg->msg_call_ref);
-	} else {
-		rls_cmp->msg_call_ref = UNI_MSG_CALL_REF_GLOBAL;
-	}
-	rls_cmp->msg_type = UNI_MSG_RLSC;
-	rls_cmp->msg_type_flag = 0;
-	rls_cmp->msg_type_action = 0;
-	rls_cmp->msg_ie_caus = cause_ie;
-
-	/*
-	 * Fill out the cause IE
-	 */
-	cause_ie->ie_ident = UNI_IE_CAUS;
-	if (cause == T_ATM_ABSENT) {
-		unisig_cause_from_attr(cause_ie,
-				&uvp->uv_connvc->cvc_attr);
-	} else {
-		cause_ie->ie_caus_loc = UNI_IE_CAUS_LOC_USER;
-		unisig_cause_from_msg(cause_ie, msg, cause);
-	}
-
-	/*
-	 * Send the RELEASE COMPLETE
-	 */
-	err = unisig_send_msg(usp, rls_cmp);
-	unisig_free_msg(rls_cmp);
-
-	return(err);
-}
-
-
-/*
- * Send a STATUS message
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	uvp	pointer to VCCB for which the STATUS is being sent.
- *		NULL indicates that a VCCB wasn't found for a call
- *		reference value.
- *	msg	pointer to the message which triggered the send
- *	cause	the cause code to include in the message
- *
- * Returns:
- *	none
- *
- */
-int
-unisig_send_status(usp, uvp, msg, cause)
-	struct unisig		*usp;
-	struct	unisig_vccb	*uvp;
-	struct unisig_msg	*msg;
-	int			cause;
-{
-	int			err = 0, i;
-	struct unisig_msg	*stat_msg;
-	struct ie_generic	*cause_ie, *clst_ie, *iep;
-
-	ATM_DEBUG4("unisig_send_status: usp=%p, uvp=%p, msg=%p, cause=%d\n",
-			usp, uvp, msg, cause);
-
-	/*
-	 * Get memory for a STATUS message
-	 */
-	stat_msg = uma_zalloc(unisig_msg_zone, M_ZERO | M_NOWAIT);
-	if (stat_msg == NULL) {
-		return(ENOMEM);
-	}
-	cause_ie = uma_zalloc(unisig_ie_zone, M_ZERO | M_NOWAIT);
-	if (cause_ie == NULL) {
-		uma_zfree(unisig_msg_zone, stat_msg);
-		return(ENOMEM);
-	}
-	clst_ie = uma_zalloc(unisig_ie_zone, M_ZERO | M_NOWAIT);
-	if (clst_ie == NULL) {
-		uma_zfree(unisig_msg_zone, stat_msg);
-		uma_zfree(unisig_ie_zone, cause_ie);
-		return(ENOMEM);
-	}
-
-	/*
-	 * Fill in the STATUS message
-	 */
-	if (uvp) {
-		stat_msg->msg_call_ref = uvp->uv_call_ref;
-	} else if (msg) {
-		stat_msg->msg_call_ref =
-				EXTRACT_CREF(msg->msg_call_ref);
-	} else {
-		stat_msg->msg_call_ref = UNI_MSG_CALL_REF_GLOBAL;
-	}
-	stat_msg->msg_type = UNI_MSG_STAT;
-	stat_msg->msg_type_flag = 0;
-	stat_msg->msg_type_action = 0;
-	stat_msg->msg_ie_clst = clst_ie;
-	stat_msg->msg_ie_caus = cause_ie;
-
-	/*
-	 * Fill out the call state IE
-	 */
-	clst_ie->ie_ident = UNI_IE_CLST;
-	clst_ie->ie_coding = 0;
-	clst_ie->ie_flag = 0;
-	clst_ie->ie_action = 0;
-	if (uvp) {
-		clst_ie->ie_clst_state = uvp->uv_sstate;
-	} else {
-		clst_ie->ie_clst_state = UNI_NULL;
-	}
-
-	/*
-	 * Fill out the cause IE
-	 */
-	cause_ie->ie_ident = UNI_IE_CAUS;
-	cause_ie->ie_coding = 0;
-	cause_ie->ie_flag = 0;
-	cause_ie->ie_action = 0;
-	cause_ie->ie_caus_loc = UNI_IE_CAUS_LOC_USER;
-	cause_ie->ie_caus_cause = cause;
-	switch (cause) {
-	case UNI_IE_CAUS_MTEXIST:
-	case UNI_IE_CAUS_STATE:
-		if (msg) {
-			cause_ie->ie_caus_diagnostic[0] = msg->msg_type;
-		}
-		break;
-	case UNI_IE_CAUS_MISSING:
-	case UNI_IE_CAUS_IECONTENT:
-	case UNI_IE_CAUS_IEEXIST:
-		for (i=0, iep=msg->msg_ie_err;
-				iep && i<UNI_MSG_IE_CNT;
-				i++, iep = iep->ie_next) {
-			if (iep->ie_err_cause == cause) {
-				cause_ie->ie_caus_diagnostic[i] =
-						iep->ie_ident;
-			}
-		}
-	}
-
-	/*
-	 * Send the STATUS message
-	 */
-	err = unisig_send_msg(usp, stat_msg);
-	unisig_free_msg(stat_msg);
-
-	return(err);
-}
-
-
-/*
- * Process a RESTART message
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	msg	pointer to the RESTART message
- *
- * Returns:
- *	none
- *
- */
-static void
-unisig_rcv_restart(usp, msg)
-	struct unisig		*usp;
-	struct unisig_msg	*msg;
-{
-	struct unisig_vccb	*uvp, *uvnext;
-	struct unisig_msg	*rsta_msg;
-	int			s;
-
-	ATM_DEBUG2("unisig_rcv_restart: usp=%p, msg=%p\n",
-			usp, msg);
-
-	/*
-	 * Check what class of VCCs we're supposed to restart
-	 */
-	if (msg->msg_ie_rsti->ie_rsti_class == UNI_IE_RSTI_IND_VC) {
-		/*
-		 * Just restart the indicated VCC
-		 */
-		if (msg->msg_ie_cnid) {
-			uvp = unisig_find_vpvc(usp,
-					msg->msg_ie_cnid->ie_cnid_vpci,
-					msg->msg_ie_cnid->ie_cnid_vci,
-					0);
-			if (uvp && uvp->uv_type & VCC_SVC) {
-				(void) unisig_clear_vcc(usp, uvp,
-						T_ATM_CAUSE_NORMAL_CALL_CLEARING);
-			}
-		}
-	} else {
-		/*
-		 * Restart all VCCs
-		 */
-		s = splnet();
-		for (uvp=Q_HEAD(usp->us_vccq, struct unisig_vccb); uvp;
-				uvp=uvnext) {
-			uvnext = Q_NEXT(uvp, struct unisig_vccb,
-					uv_sigelem);
-			if (uvp->uv_type & VCC_SVC) {
-				(void) unisig_clear_vcc(usp, uvp,
-						T_ATM_CAUSE_NORMAL_CALL_CLEARING);
-			}
-		}
-		(void) splx(s);
-	}
-
-	/*
-	 * Get memory for a RESTART ACKNOWLEDGE message
-	 */
-	rsta_msg = uma_zalloc(unisig_msg_zone, M_NOWAIT);
-	if (rsta_msg == NULL) {
-		return;
-	}
-
-	/*
-	 * Fill out the message
-	 */
-	rsta_msg->msg_call_ref = EXTRACT_CREF(msg->msg_call_ref);
-	rsta_msg->msg_type = UNI_MSG_RSTA;
-	rsta_msg->msg_type_flag = 0;
-	rsta_msg->msg_type_action = 0;
-	rsta_msg->msg_ie_rsti = msg->msg_ie_rsti;
-	if (msg->msg_ie_cnid) {
-		rsta_msg->msg_ie_cnid = msg->msg_ie_cnid;
-	}
-
-	/*
-	 * Send the message
-	 */
-	(void) unisig_send_msg(usp, rsta_msg);
-	rsta_msg->msg_ie_rsti = NULL;
-	rsta_msg->msg_ie_cnid = NULL;
-	unisig_free_msg(rsta_msg);
-
-	return;
-}
-
-
-/*
- * Process a SETUP message
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	msg	pointer to the SETUP message
- *
- * Returns:
- *	none
- *
- */
-static void
-unisig_rcv_setup(usp, msg)
-	struct unisig		*usp;
-	struct unisig_msg	*msg;
-{
-	struct unisig_vccb	*uvp = NULL;
-	struct ie_generic	*iep;
-
-	ATM_DEBUG2("unisig_rcv_setup: usp=%p, msg=%p\n", usp, msg);
-
-	/*
-	 * If we already have a VCC with the call reference,
-	 * ignore the SETUP message
-	 */
-	uvp = unisig_find_conn(usp, EXTRACT_CREF(msg->msg_call_ref));
-	if (uvp)
-		return;
-
-	/*
-	 * If the call reference flag is incorrectly set, 
-	 * ignore the SETUP message
-	 */
-	if (msg->msg_call_ref & UNI_MSG_CALL_REF_RMT)
-		return;
-
-	/*
-	 * If there are missing mandatory IEs, send a
-	 * RELEASE COMPLETE message and ignore the SETUP
-	 */
-	for (iep = msg->msg_ie_err; iep; iep = iep->ie_next) {
-		if (iep->ie_err_cause == UNI_IE_CAUS_MISSING) {
-			(void) unisig_send_release_complete(usp,
-					uvp, msg, UNI_IE_CAUS_MISSING);
-			return;
-		}
-	}
-
-	/*
-	 * If there are mandatory IEs with invalid content, send a
-	 * RELEASE COMPLETE message and ignore the SETUP
-	 */
-	for (iep = msg->msg_ie_err; iep; iep = iep->ie_next) {
-		if (iep->ie_err_cause == UNI_IE_CAUS_IECONTENT) {
-			(void) unisig_send_release_complete(usp,
-					uvp, msg,
-					UNI_IE_CAUS_IECONTENT);
-			return;
-		}
-	}
-
-	/*
-	 * Get a new VCCB for the connection
-	 */
-	uvp = uma_zalloc(unisig_vc_zone, M_ZERO | M_NOWAIT);
-	if (uvp == NULL) {
-		return;
-	}
-
-	/*
-	 * Put the VCCB on the UNISIG queue
-	 */
-	ENQUEUE(uvp, struct unisig_vccb, uv_sigelem, usp->us_vccq);
-
-	/*
-	 * Set the state and call reference value
-	 */
-	uvp->uv_sstate = UNI_NULL;
-	uvp->uv_call_ref = EXTRACT_CREF(msg->msg_call_ref);
-
-	/*
-	 * Pass the VCCB and message to the VC state machine
-	 */
-	(void) unisig_vc_state(usp, uvp, UNI_VC_SETUP_MSG, msg);
-
-	/*
-	 * If the VCCB state is NULL, the open failed and the
-	 * VCCB should be released
-	 */
-	if (uvp->uv_sstate == UNI_NULL) {
-		DEQUEUE(uvp, struct unisig_vccb, uv_sigelem,
-				usp->us_vccq);
-		uma_zfree(unisig_vc_zone, uvp);
-	}
-	return;
-}
-
-
-/*
- * Process a UNISIG signalling message
- *
- * Called when a UNISIG message is received.  The message is decoded
- * and passed to the UNISIG state machine.  Unrecognized and
- * unexpected messages are logged.
- *
- * Arguments:
- *	usp	pointer to UNISIG protocol instance block
- *	m	pointer to a buffer chain containing the UNISIG message
- *
- * Returns:
- *	none
- *
- */
-int
-unisig_rcv_msg(usp, m)
-	struct unisig	*usp;
-	KBuffer		*m;
-{
-	int			err;
-	u_int			cref;
-	struct usfmt		usf;
-	struct unisig_msg	*msg = 0;
-	struct unisig_vccb	*uvp = 0;
-	struct ie_generic	*iep;
-
-	ATM_DEBUG2("unisig_rcv_msg: bfr=%p, len=%d\n", m, KB_LEN(m));
-
-#ifdef NOTDEF
-	unisig_print_mbuf(m);
-#endif
-
-	/*
-	 * Get storage for the message
-	 */
-	msg = uma_zalloc(unisig_msg_zone, M_ZERO | M_NOWAIT);
-	if (msg == NULL) {
-		err = ENOMEM;
-		goto done;
-	}
-
-	/*
-	 * Convert the message from network order to internal format
-	 */
-	err = usf_init(&usf, usp, m, USF_DECODE, 0);
-	if (err) {
-		if (err == EINVAL)
-			panic("unisig_rcv_msg: invalid parameter\n");
-		ATM_DEBUG1("unisig_rcv_msg: decode init failed with %d\n",
-				err);
-		goto done;
-	}
-
-	err = usf_dec_msg(&usf, msg);
-	if (err) {
-		ATM_DEBUG1("unisig_rcv_msg: decode failed with %d\n",
-				err);
-		goto done;
-	}
-
-	/*
-	 * Debug--print some information about the message
-	 */
-	if (unisig_print_msg)
-		usp_print_msg(msg, UNISIG_MSG_IN);
-
-	/*
-	 * Get the call reference value
-	 */
-	cref = EXTRACT_CREF(msg->msg_call_ref);
-
-	/*
-	 * Any message with the global call reference value except
-	 * RESTART, RESTART ACK, or STATUS is in error
-	 */
-	if (GLOBAL_CREF(cref) &&
-			msg->msg_type != UNI_MSG_RSTR &&
-			msg->msg_type != UNI_MSG_RSTA &&
-			msg->msg_type != UNI_MSG_STAT) {
-		/*
-		 * Send STATUS message indicating the error
-		 */
-		err = unisig_send_status(usp, (struct unisig_vccb *) 0,
-				msg, UNI_IE_CAUS_CREF);
-		goto done;
-	}
-
-	/*
-	 * Check for missing mandatory IEs.  Checks for SETUP,
-	 * RELEASE, and RELEASE COMPLETE are handled elsewhere.
-	 */
-	if (msg->msg_type != UNI_MSG_SETU &&
-			msg->msg_type != UNI_MSG_RLSE &&
-			msg->msg_type != UNI_MSG_RLSC) {
-		for (iep = msg->msg_ie_err; iep; iep = iep->ie_next) {
-			if (iep->ie_err_cause == UNI_IE_CAUS_MISSING) {
-				err = unisig_send_status(usp,
-						uvp, msg,
-						UNI_IE_CAUS_MISSING);
-				goto done;
-			}
-		}
-	}
-
-	/*
-	 * Find the VCCB associated with the message
-	 */
-	uvp = unisig_find_conn(usp, cref);
-
-	/*
-	 * Process the message based on its type
-	 */
-	switch(msg->msg_type) {
-	case UNI_MSG_CALP:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_CALLP_MSG, msg);
-		break;
-	case UNI_MSG_CONN:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_CONNECT_MSG, msg);
-		break;
-	case UNI_MSG_CACK:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_CNCTACK_MSG, msg);
-		break;
-	case UNI_MSG_SETU:
-		unisig_rcv_setup(usp, msg);
-		break;
-	case UNI_MSG_RLSE:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_RELEASE_MSG, msg);
-		break;
-	case UNI_MSG_RLSC:
-		/*
-		 * Ignore a RELEASE COMPLETE with an unrecognized
-		 * call reference value
-		 */
-		if (uvp) {
-			(void) unisig_vc_state(usp, uvp,
-					UNI_VC_RLSCMP_MSG, msg);
-		}
-		break;
-	case UNI_MSG_RSTR:
-		unisig_rcv_restart(usp, msg);
-		break;
-	case UNI_MSG_RSTA:
-		break;
-	case UNI_MSG_STAT:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_STATUS_MSG, msg);
-		break;
-	case UNI_MSG_SENQ:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_STATUSENQ_MSG, msg);
-		break;
-	case UNI_MSG_ADDP:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_ADDP_MSG, msg);
-		break;
-	case UNI_MSG_ADPA:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_ADDPACK_MSG, msg);
-		break;
-	case UNI_MSG_ADPR:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_ADDPREJ_MSG, msg);
-		break;
-	case UNI_MSG_DRPP:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_DROP_MSG, msg);
-		break;
-	case UNI_MSG_DRPA:
-		(void) unisig_vc_state(usp, uvp,
-				UNI_VC_DROPACK_MSG, msg);
-		break;
-	default:
-		/*
-		 * Message size didn't match size received
-		 */
-		err = unisig_send_status(usp, uvp, msg,
-				UNI_IE_CAUS_MTEXIST);
-	}
-
-done:
-	/*
-	 * Handle message errors that require a response
-	 */
-	switch(err) {
-	case EMSGSIZE:
-		/*
-		 * Message size didn't match size received
-		 */
-		err = unisig_send_status(usp, uvp, msg,
-				UNI_IE_CAUS_LEN);
-		break;
-	}
-
-	/*
-	 * Free the incoming message (both buffer and internal format)
-	 * if necessary.
-	 */
-	if (msg)
-		unisig_free_msg(msg);
-	if (m)
-		KB_FREEALL(m);
-
-	return (err);
-}