[unix-history] / usr / src / sys / netiso / cltp_usrreq.c

/*
 * Copyright (c) 1989 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution is only permitted until one year after the first shipment
 * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
 * binary forms are permitted provided that: (1) source distributions retain
 * this entire copyright notice and comment, and (2) distributions including
 * binaries display the following acknowledgement:  This product includes
 * software developed by the University of California, Berkeley and its
 * contributors'' in the documentation or other materials provided with the
 * distribution and in all advertising materials mentioning features or use
 * of this software.  Neither the name of the University nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)cltp_usrreq.c	7.5 (Berkeley) 6/28/90
 */

#ifndef CLTPOVAL_SRC /* XXX -- till files gets changed */
#include "param.h"
#include "user.h"
#include "malloc.h"
#include "mbuf.h"
#include "protosw.h"
#include "socket.h"
#include "socketvar.h"
#include "errno.h"
#include "stat.h"

#include "../net/if.h"
#include "../net/route.h"

#include "argo_debug.h"
#include "iso.h"
#include "iso_pcb.h"
#include "iso_var.h"
#include "clnp.h"
#include "cltp_var.h"
#endif

/*
 * CLTP protocol implementation.
 * Per ISO 8602, December, 1987.
 */
cltp_init()
{

	cltb.isop_next = cltb.isop_prev = &cltb;
}

int cltp_cksum = 1;


/* ARGUSED */
cltp_input(m0, srcsa, dstsa, cons_channel, output)
	struct mbuf *m0;
	struct sockaddr *srcsa, *dstsa;
	u_int cons_channel;
	int (*output)();
{
	register struct isopcb *isop;
	register struct mbuf *m = m0;
	register u_char *up = mtod(m, u_char *);
	register struct sockaddr_iso *src = (struct sockaddr_iso *)srcsa;
	int len, hdrlen = *up + 1, dlen = 0;
	u_char *uplim = up + hdrlen;
	caddr_t dtsap;

	for (len = 0; m; m = m->m_next)
		len += m->m_len;
	up += 2; /* skip header */
	while (up < uplim) switch (*up) { /* process options */
	case CLTPOVAL_SRC:
		src->siso_tlen = up[1];
		src->siso_len = up[1] + TSEL(src) - (caddr_t)src;
		if (src->siso_len < sizeof(*src))
			src->siso_len = sizeof(*src);
		else if (src->siso_len > sizeof(*src)) {
			MGET(m, M_DONTWAIT, MT_SONAME);
			if (m == 0)
				goto bad;
			m->m_len = src->siso_len;
			src = mtod(m, struct sockaddr_iso *);
			bcopy((caddr_t)srcsa, (caddr_t)src, srcsa->sa_len);
		}
		bcopy((caddr_t)up + 2, TSEL(src), up[1]);
		up += 2 + src->siso_tlen;
		continue;
	
	case CLTPOVAL_DST:
		dtsap = 2 + (caddr_t)up;
		dlen = up[1];
		up += 2 + dlen;
		continue;

	case CLTPOVAL_CSM:
		if (iso_check_csum(m0, len)) {
			cltpstat.cltps_badsum++;
			goto bad;
		}
		up += 4;
		continue;

	default:
		printf("clts: unknown option (%x)\n", up[0]);
		cltpstat.cltps_hdrops++;
		goto bad;
	}
	if (dlen == 0 || src->siso_tlen == 0)
		goto bad;
	for (isop = cltb.isop_next;; isop = isop->isop_next) {
		if (isop == &cltb) {
			cltpstat.cltps_noport++;
			goto bad;
		}
		if (isop->isop_laddr &&
		    bcmp(TSEL(isop->isop_laddr), dtsap, dlen) == 0)
			break;
	}
	m = m0;
	m->m_len -= hdrlen;
	m->m_data += hdrlen;
	if (sbappendaddr(&isop->isop_socket->so_rcv, (struct sockaddr *)src,
	    m, (struct mbuf *)0) == 0)
		goto bad;
	cltpstat.cltps_ipackets++;
	sorwakeup(isop->isop_socket);
	m0 = 0;
bad:
	if (src != (struct sockaddr_iso *)srcsa)
		m_freem(dtom(src));
	if (m0)
		m_freem(m0);
	return 0;
}

/*
 * Notify a cltp user of an asynchronous error;
 * just wake up so that he can collect error status.
 */
cltp_notify(isop)
	register struct isopcb *isop;
{

	sorwakeup(isop->isop_socket);
	sowwakeup(isop->isop_socket);
}

cltp_ctlinput(cmd, sa)
	int cmd;
	struct sockaddr *sa;
{
	extern u_char inetctlerrmap[];
	struct sockaddr_iso *siso;
	int iso_rtchange();

	if ((unsigned)cmd > PRC_NCMDS)
		return;
	if (sa->sa_family != AF_ISO && sa->sa_family != AF_CCITT)
		return;
	siso = (struct sockaddr_iso *)sa;
	if (siso == 0 || siso->siso_nlen == 0)
		return;

	switch (cmd) {
	case PRC_ROUTEDEAD:
	case PRC_REDIRECT_NET:
	case PRC_REDIRECT_HOST:
	case PRC_REDIRECT_TOSNET:
	case PRC_REDIRECT_TOSHOST:
		iso_pcbnotify(&cltb, siso,
				(int)inetctlerrmap[cmd], iso_rtchange);
		break;

	default:
		if (inetctlerrmap[cmd] == 0)
			return;		/* XXX */
		iso_pcbnotify(&cltb, siso, (int)inetctlerrmap[cmd],
			cltp_notify);
	}
}

cltp_output(isop, m)
	register struct isopcb *isop;
	register struct mbuf *m;
{
	register int len;
	register struct sockaddr_iso *siso;
	int hdrlen, error = 0, docsum;
	register u_char *up;

	if (isop->isop_laddr == 0 || isop->isop_faddr == 0) {
		error = ENOTCONN;
		goto bad;
	}
	/*
	 * Calculate data length and get a mbuf for CLTP header.
	 */
	hdrlen = 2 + 2 + isop->isop_laddr->siso_tlen
		   + 2 + isop->isop_faddr->siso_tlen;
	if (docsum = /*isop->isop_flags & CLNP_NO_CKSUM*/ cltp_cksum)
		hdrlen += 4;
	M_PREPEND(m, hdrlen, M_WAIT);
	len = m->m_pkthdr.len;
	/*
	 * Fill in mbuf with extended CLTP header
	 */
	up = mtod(m, u_char *);
	up[0] = hdrlen - 1;
	up[1] = UD_TPDU_type;
	up[2] = CLTPOVAL_SRC;
	up[3] = (siso = isop->isop_laddr)->siso_tlen;
	up += 4;
	bcopy(TSEL(siso), (caddr_t)up, siso->siso_tlen);
	up += siso->siso_tlen;
	up[0] = CLTPOVAL_DST;
	up[1] = (siso = isop->isop_faddr)->siso_tlen;
	up += 2;
	bcopy(TSEL(siso), (caddr_t)up, siso->siso_tlen);
	/*
	 * Stuff checksum and output datagram.
	 */
	if (docsum) {
		up += siso->siso_tlen;
		up[0] = CLTPOVAL_CSM;
		up[1] = 2;
		iso_gen_csum(m, 2 + up - mtod(m, u_char *), len);
	}
	cltpstat.cltps_opackets++;
	return (tpclnp_output(isop, m, len, !docsum));
bad:
	m_freem(m);
	return (error);
}

#ifndef TP_LOCAL
/* XXXX should go in iso.h maybe? from tp_param.h, in any case */
#define		TP_LOCAL				22
#define		TP_FOREIGN				33
#endif

u_long	cltp_sendspace = 9216;		/* really max datagram size */
u_long	cltp_recvspace = 40 * (1024 + sizeof(struct sockaddr_iso));
					/* 40 1K datagrams */


/*ARGSUSED*/
cltp_usrreq(so, req, m, nam, control)
	struct socket *so;
	int req;
	struct mbuf *m, *nam, *control;
{
	struct isopcb *isop = sotoisopcb(so);
	int s, error = 0;

	if (req == PRU_CONTROL)
		return (iso_control(so, (int)m, (caddr_t)nam,
			(struct ifnet *)control));
	if ((isop == NULL && req != PRU_ATTACH) ||
	    (control && control->m_len)) {
		error = EINVAL;
		goto release;
	}
	switch (req) {

	case PRU_ATTACH:
		if (isop != NULL) {
			error = EINVAL;
			break;
		}
		error = iso_pcballoc(so, &cltb);
		if (error)
			break;
		error = soreserve(so, cltp_sendspace, cltp_recvspace);
		if (error)
			break;
		break;

	case PRU_DETACH:
		iso_pcbdetach(isop);
		break;

	case PRU_BIND:
		error = iso_pcbbind(isop, nam);
		break;

	case PRU_LISTEN:
		error = EOPNOTSUPP;
		break;

	case PRU_CONNECT:
		if (isop->isop_faddr) {
			error = EISCONN;
			break;
		}
		error = iso_pcbconnect(isop, nam);
		if (error == 0)
			soisconnected(so);
		break;

	case PRU_CONNECT2:
		error = EOPNOTSUPP;
		break;

	case PRU_ACCEPT:
		error = EOPNOTSUPP;
		break;

	case PRU_DISCONNECT:
		if (isop->isop_faddr == 0) {
			error = ENOTCONN;
			break;
		}
		iso_pcbdisconnect(isop);
		so->so_state &= ~SS_ISCONNECTED;		/* XXX */
		break;

	case PRU_SHUTDOWN:
		socantsendmore(so);
		break;

	case PRU_SEND:
		if (nam) {
			if (isop->isop_faddr) {
				error = EISCONN;
				break;
			}
			/*
			 * Must block input while temporarily connected.
			 */
			s = splnet();
			error = iso_pcbconnect(isop, nam);
			if (error) {
				splx(s);
				break;
			}
		} else {
			if (isop->isop_faddr == 0) {
				error = ENOTCONN;
				break;
			}
		}
		error = cltp_output(isop, m);
		m = 0;
		if (nam) {
			iso_pcbdisconnect(isop);
			splx(s);
		}
		break;

	case PRU_ABORT:
		soisdisconnected(so);
		iso_pcbdetach(isop);
		break;

	case PRU_SOCKADDR:
		iso_getnetaddr(isop, nam, TP_LOCAL);
		break;

	case PRU_PEERADDR:
		iso_getnetaddr(isop, nam, TP_FOREIGN);
		break;

	case PRU_SENSE:
		/*
		 * stat: don't bother with a blocksize.
		 */
		return (0);

	case PRU_SENDOOB:
	case PRU_FASTTIMO:
	case PRU_SLOWTIMO:
	case PRU_PROTORCV:
	case PRU_PROTOSEND:
		error =  EOPNOTSUPP;
		break;

	case PRU_RCVD:
	case PRU_RCVOOB:
		return (EOPNOTSUPP);	/* do not free mbuf's */

	default:
		panic("cltp_usrreq");
	}
release:
	if (control != NULL)
		m_freem(control);
	if (m != NULL)
		m_freem(m);
	return (error);
}
Commit	Line	Data
cb94d50b KS	1	/*
	2	* Copyright (c) 1989 Regents of the University of California.
	3	* All rights reserved.
	4	*
1c15e888 C	5	* Redistribution is only permitted until one year after the first shipment
	6	* of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
	7	* binary forms are permitted provided that: (1) source distributions retain
	8	* this entire copyright notice and comment, and (2) distributions including
	9	* binaries display the following acknowledgement: This product includes
	10	* software developed by the University of California, Berkeley and its
	11	* contributors'' in the documentation or other materials provided with the
	12	* distribution and in all advertising materials mentioning features or use
	13	* of this software. Neither the name of the University nor the names of
	14	* its contributors may be used to endorse or promote products derived from
	15	* this software without specific prior written permission.
	16	* THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	17	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	18	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
cb94d50b	19	*
1c15e888	20	* @(#)cltp_usrreq.c 7.5 (Berkeley) 6/28/90
cb94d50b KS	21	*/
	22
	23	#ifndef CLTPOVAL_SRC /* XXX -- till files gets changed */
	24	#include "param.h"
	25	#include "user.h"
	26	#include "malloc.h"
	27	#include "mbuf.h"
	28	#include "protosw.h"
	29	#include "socket.h"
	30	#include "socketvar.h"
	31	#include "errno.h"
	32	#include "stat.h"
	33
	34	#include "../net/if.h"
	35	#include "../net/route.h"
	36
	37	#include "argo_debug.h"
	38	#include "iso.h"
	39	#include "iso_pcb.h"
	40	#include "iso_var.h"
	41	#include "clnp.h"
	42	#include "cltp_var.h"
	43	#endif
	44
	45	/*
	46	* CLTP protocol implementation.
	47	* Per ISO 8602, December, 1987.
	48	*/
	49	cltp_init()
	50	{
	51
	52	cltb.isop_next = cltb.isop_prev = &cltb;
	53	}
	54
	55	int cltp_cksum = 1;
	56
	57
	58	/* ARGUSED */
	59	cltp_input(m0, srcsa, dstsa, cons_channel, output)
	60	struct mbuf *m0;
	61	struct sockaddr srcsa, dstsa;
	62	u_int cons_channel;
	63	int (*output)();
	64	{
	65	register struct isopcb *isop;
	66	register struct mbuf *m = m0;
	67	register u_char up = mtod(m, u_char );
	68	register struct sockaddr_iso src = (struct sockaddr_iso )srcsa;
	69	int len, hdrlen = *up + 1, dlen = 0;
	70	u_char *uplim = up + hdrlen;
	71	caddr_t dtsap;
	72
	73	for (len = 0; m; m = m->m_next)
	74	len += m->m_len;
	75	up += 2; /* skip header */
	76	while (up < uplim) switch (up) { / process options */
	77	case CLTPOVAL_SRC:
	78	src->siso_tlen = up[1];
	79	src->siso_len = up[1] + TSEL(src) - (caddr_t)src;
	80	if (src->siso_len < sizeof(*src))
	81	src->siso_len = sizeof(*src);
	82	else if (src->siso_len > sizeof(*src)) {
	83	MGET(m, M_DONTWAIT, MT_SONAME);
	84	if (m == 0)
85	goto bad;
86	m->m_len = src->siso_len;
87	src = mtod(m, struct sockaddr_iso *);
88	bcopy((caddr_t)srcsa, (caddr_t)src, srcsa->sa_len);
89	}
90	bcopy((caddr_t)up + 2, TSEL(src), up[1]);
91	up += 2 + src->siso_tlen;
92	continue;
93
94	case CLTPOVAL_DST:
95	dtsap = 2 + (caddr_t)up;
96	dlen = up[1];
97	up += 2 + dlen;
98	continue;
99
100	case CLTPOVAL_CSM:
c6f34efd KS	101	if (iso_check_csum(m0, len)) {
c6f34efd KS	102	cltpstat.cltps_badsum++;
cb94d50b	103	goto bad;
c6f34efd	104	}
cb94d50b	105	up += 4;
c6f34efd	106	continue;
cb94d50b KS	107
	108	default:
	109	printf("clts: unknown option (%x)\n", up[0]);
c6f34efd	110	cltpstat.cltps_hdrops++;
cb94d50b KS	111	goto bad;
	112	}
	113	if (dlen == 0 \|\| src->siso_tlen == 0)
	114	goto bad;
	115	for (isop = cltb.isop_next;; isop = isop->isop_next) {
c6f34efd KS	116	if (isop == &cltb) {
c6f34efd KS	117	cltpstat.cltps_noport++;
cb94d50b	118	goto bad;
c6f34efd	119	}
cb94d50b KS	120	if (isop->isop_laddr &&
	121	bcmp(TSEL(isop->isop_laddr), dtsap, dlen) == 0)
	122	break;
	123	}
	124	m = m0;
c6f34efd KS	125	m->m_len -= hdrlen;
c6f34efd KS	126	m->m_data += hdrlen;
cb94d50b KS	127	if (sbappendaddr(&isop->isop_socket->so_rcv, (struct sockaddr *)src,
	128	m, (struct mbuf *)0) == 0)
	129	goto bad;
c6f34efd	130	cltpstat.cltps_ipackets++;
cb94d50b KS	131	sorwakeup(isop->isop_socket);
	132	m0 = 0;
	133	bad:
	134	if (src != (struct sockaddr_iso *)srcsa)
	135	m_freem(dtom(src));
	136	if (m0)
	137	m_freem(m0);
c6f34efd	138	return 0;
cb94d50b KS	139	}
	140
	141	/*
	142	* Notify a cltp user of an asynchronous error;
	143	* just wake up so that he can collect error status.
	144	*/
	145	cltp_notify(isop)
	146	register struct isopcb *isop;
	147	{
	148
	149	sorwakeup(isop->isop_socket);
	150	sowwakeup(isop->isop_socket);
	151	}
	152
	153	cltp_ctlinput(cmd, sa)
	154	int cmd;
	155	struct sockaddr *sa;
	156	{
	157	extern u_char inetctlerrmap[];
	158	struct sockaddr_iso *siso;
	159	int iso_rtchange();
	160
	161	if ((unsigned)cmd > PRC_NCMDS)
	162	return;
	163	if (sa->sa_family != AF_ISO && sa->sa_family != AF_CCITT)
	164	return;
	165	siso = (struct sockaddr_iso *)sa;
	166	if (siso == 0 \|\| siso->siso_nlen == 0)
	167	return;
	168
	169	switch (cmd) {
	170	case PRC_ROUTEDEAD:
	171	case PRC_REDIRECT_NET:
	172	case PRC_REDIRECT_HOST:
	173	case PRC_REDIRECT_TOSNET:
	174	case PRC_REDIRECT_TOSHOST:
	175	iso_pcbnotify(&cltb, siso,
	176	(int)inetctlerrmap[cmd], iso_rtchange);
	177	break;
	178
	179	default:
	180	if (inetctlerrmap[cmd] == 0)
	181	return; /* XXX */
	182	iso_pcbnotify(&cltb, siso, (int)inetctlerrmap[cmd],
	183	cltp_notify);
	184	}
	185	}
	186
	187	cltp_output(isop, m)
	188	register struct isopcb *isop;
	189	register struct mbuf *m;
	190	{
	191	register int len;
	192	register struct sockaddr_iso *siso;
	193	int hdrlen, error = 0, docsum;
	194	register u_char *up;
	195
	196	if (isop->isop_laddr == 0 \|\| isop->isop_faddr == 0) {
	197	error = ENOTCONN;
	198	goto bad;
	199	}
	200	/*
	201	* Calculate data length and get a mbuf for CLTP header.
	202	*/
203	hdrlen = 2 + 2 + isop->isop_laddr->siso_tlen
204	+ 2 + isop->isop_faddr->siso_tlen;
205	if (docsum = /isop->isop_flags & CLNP_NO_CKSUM/ cltp_cksum)
206	hdrlen += 4;
207	M_PREPEND(m, hdrlen, M_WAIT);
208	len = m->m_pkthdr.len;
209	/*
210	* Fill in mbuf with extended CLTP header
211	*/
212	up = mtod(m, u_char *);
c6f34efd KS	213	up[0] = hdrlen - 1;
	214	up[1] = UD_TPDU_type;
	215	up[2] = CLTPOVAL_SRC;
cb94d50b KS	216	up[3] = (siso = isop->isop_laddr)->siso_tlen;
	217	up += 4;
	218	bcopy(TSEL(siso), (caddr_t)up, siso->siso_tlen);
	219	up += siso->siso_tlen;
c6f34efd	220	up[0] = CLTPOVAL_DST;
cb94d50b KS	221	up[1] = (siso = isop->isop_faddr)->siso_tlen;
	222	up += 2;
	223	bcopy(TSEL(siso), (caddr_t)up, siso->siso_tlen);
	224	/*
	225	* Stuff checksum and output datagram.
	226	*/
	227	if (docsum) {
	228	up += siso->siso_tlen;
	229	up[0] = CLTPOVAL_CSM;
	230	up[1] = 2;
c6f34efd	231	iso_gen_csum(m, 2 + up - mtod(m, u_char *), len);
cb94d50b	232	}
c6f34efd	233	cltpstat.cltps_opackets++;
cb94d50b KS	234	return (tpclnp_output(isop, m, len, !docsum));
	235	bad:
	236	m_freem(m);
	237	return (error);
	238	}
	239
	240	#ifndef TP_LOCAL
	241	/* XXXX should go in iso.h maybe? from tp_param.h, in any case */
	242	#define TP_LOCAL 22
	243	#define TP_FOREIGN 33
	244	#endif
	245
	246	u_long cltp_sendspace = 9216; /* really max datagram size */
	247	u_long cltp_recvspace = 40 * (1024 + sizeof(struct sockaddr_iso));
	248	/* 40 1K datagrams */
	249
	250
	251	/ARGSUSED/
3483a811	252	cltp_usrreq(so, req, m, nam, control)
cb94d50b KS	253	struct socket *so;
cb94d50b KS	254	int req;
3483a811	255	struct mbuf m, nam, *control;
cb94d50b KS	256	{
	257	struct isopcb *isop = sotoisopcb(so);
	258	int s, error = 0;
	259
	260	if (req == PRU_CONTROL)
	261	return (iso_control(so, (int)m, (caddr_t)nam,
3483a811	262	(struct ifnet *)control));
a28acf5d KS	263	if ((isop == NULL && req != PRU_ATTACH) \|\|
a28acf5d KS	264	(control && control->m_len)) {
cb94d50b KS	265	error = EINVAL;
	266	goto release;
	267	}
	268	switch (req) {
	269
	270	case PRU_ATTACH:
	271	if (isop != NULL) {
	272	error = EINVAL;
	273	break;
	274	}
	275	error = iso_pcballoc(so, &cltb);
	276	if (error)
	277	break;
	278	error = soreserve(so, cltp_sendspace, cltp_recvspace);
	279	if (error)
	280	break;
	281	break;
	282
	283	case PRU_DETACH:
	284	iso_pcbdetach(isop);
	285	break;
	286
	287	case PRU_BIND:
	288	error = iso_pcbbind(isop, nam);
	289	break;
	290
	291	case PRU_LISTEN:
	292	error = EOPNOTSUPP;
	293	break;
	294
	295	case PRU_CONNECT:
	296	if (isop->isop_faddr) {
	297	error = EISCONN;
	298	break;
	299	}
	300	error = iso_pcbconnect(isop, nam);
	301	if (error == 0)
	302	soisconnected(so);
	303	break;
	304
	305	case PRU_CONNECT2:
	306	error = EOPNOTSUPP;
	307	break;
	308
	309	case PRU_ACCEPT:
	310	error = EOPNOTSUPP;
	311	break;
	312
	313	case PRU_DISCONNECT:
	314	if (isop->isop_faddr == 0) {
	315	error = ENOTCONN;
	316	break;
	317	}
	318	iso_pcbdisconnect(isop);
	319	so->so_state &= ~SS_ISCONNECTED; /* XXX */
	320	break;
	321
	322	case PRU_SHUTDOWN:
	323	socantsendmore(so);
	324	break;
	325
	326	case PRU_SEND:
	327	if (nam) {
	328	if (isop->isop_faddr) {
329	error = EISCONN;
330	break;
331	}
332	/*
333	* Must block input while temporarily connected.
334	*/
335	s = splnet();
336	error = iso_pcbconnect(isop, nam);
337	if (error) {
338	splx(s);
339	break;
340	}
341	} else {
342	if (isop->isop_faddr == 0) {
343	error = ENOTCONN;
344	break;
345	}
346	}
347	error = cltp_output(isop, m);
348	m = 0;
349	if (nam) {
350	iso_pcbdisconnect(isop);
351	splx(s);
352	}
353	break;
354
355	case PRU_ABORT:
356	soisdisconnected(so);
357	iso_pcbdetach(isop);
358	break;
359
360	case PRU_SOCKADDR:
361	iso_getnetaddr(isop, nam, TP_LOCAL);
362	break;
363
364	case PRU_PEERADDR:
365	iso_getnetaddr(isop, nam, TP_FOREIGN);
366	break;
367
368	case PRU_SENSE:
369	/*
370	* stat: don't bother with a blocksize.
371	*/
372	return (0);
373
374	case PRU_SENDOOB:
375	case PRU_FASTTIMO:
376	case PRU_SLOWTIMO:
377	case PRU_PROTORCV:
378	case PRU_PROTOSEND:
379	error = EOPNOTSUPP;
380	break;
381
382	case PRU_RCVD:
383	case PRU_RCVOOB:
384	return (EOPNOTSUPP); /* do not free mbuf's */
385
386	default:
387	panic("cltp_usrreq");
388	}
389	release:
a28acf5d KS	390	if (control != NULL)
a28acf5d KS	391	m_freem(control);
cb94d50b KS	392	if (m != NULL)
	393	m_freem(m);
	394	return (error);
	395	}