[unix-history] / sys / netiso / clnp_raw.c

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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 BY THE REGENTS 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 REGENTS 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.
 *
 *	@(#)clnp_raw.c	7.8 (Berkeley) 5/6/91
 */

/***********************************************************
				Copyright IBM Corporation 1987

                      All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of IBM not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/

/*
 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
 */
/* $Header: clnp_raw.c,v 4.2 88/06/29 14:58:56 hagens Exp $ */
/* $Source: /usr/argo/sys/netiso/RCS/clnp_raw.c,v $ */

#include "param.h"
#include "mbuf.h"
#include "domain.h"
#include "protosw.h"
#include "socket.h"
#include "socketvar.h"
#include "errno.h"
#include "time.h"

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

#include "iso.h"
#include "iso_pcb.h"
#include "clnp.h"
#include "clnp_stat.h"
#include "argo_debug.h"

#include "tp_user.h"/* XXX -- defines SOL_NETWORK */

struct sockproto	rclnp_proto	= { PF_ISO, 0 };
/*
 * FUNCTION:		rclnp_input
 *
 * PURPOSE:			Setup generic address an protocol structures for
 *					raw input routine, then pass them along with the
 *					mbuf chain.
 *
 * RETURNS:			none
 *
 * SIDE EFFECTS:	
 *
 * NOTES:			The protocol field of rclnp_proto is set to zero indicating
 *					no protocol.
 */
rclnp_input(m, src, dst, hdrlen)
struct mbuf 		*m;		/* ptr to packet */
struct sockaddr_iso	*src;	/* ptr to src address */
struct sockaddr_iso	*dst;	/* ptr to dest address */
int					hdrlen; /* length (in bytes) of clnp header */
{
#ifdef	TROLL
	if (trollctl.tr_ops & TR_CHUCK) {
		m_freem(m);
		return;
	}
#endif	TROLL

	if (raw_input(m, &rclnp_proto, (struct sockaddr *)src,
		(struct sockaddr *)dst) == 0) {
			clnp_stat.cns_delivered--;
			clnp_stat.cns_noproto++;
	}
}

/*
 * FUNCTION:		rclnp_output
 *
 * PURPOSE:			Prepare to send a raw clnp packet. Setup src and dest
 *					addresses, count the number of bytes to send, and
 *					call clnp_output.
 *
 * RETURNS:			success - 0
 *					failure - an appropriate error code
 *
 * SIDE EFFECTS:	
 *
 * NOTES:			
 */
rclnp_output(m0, so)
struct mbuf		*m0;		/* packet to send */
struct socket	*so;	/* socket to send from */
{
	register struct mbuf	*m;			/* used to scan a chain */
	int						len = 0;	/* store length of chain here */
	struct rawisopcb		*rp = sotorawisopcb(so); /* ptr to raw cb */
	int						error;		/* return value of function */
	int						flags;		/* flags for clnp_output */

	if (0 == m0->m_flags & M_PKTHDR)
		return (EINVAL);
	/*
	 *	Set up src address. If user has bound socket to an address, use it.
	 *	Otherwise, do not specify src (clnp_output will fill it in).
	 */
	if (rp->risop_rcb.rcb_laddr) {
		if (rp->risop_isop.isop_sladdr.siso_family != AF_ISO) {
bad:
			m_freem(m0);
			return(EAFNOSUPPORT);
		}
	}
	/* set up dest address */
	if (rp->risop_rcb.rcb_faddr == 0)
		goto bad;
	rp->risop_isop.isop_sfaddr =
				*(struct sockaddr_iso *)rp->risop_rcb.rcb_faddr;
	rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr;

	/* get flags and ship it off */
	flags = rp->risop_flags & CLNP_VFLAGS;

	error = clnp_output(m0, &rp->risop_isop, m0->m_pkthdr.len,
												flags|CLNP_NOCACHE);

	return (error);
}

/*
 * FUNCTION:		rclnp_ctloutput
 *
 * PURPOSE:			Raw clnp socket option processing
 *					All options are stored inside an mbuf. 
 *
 * RETURNS:			success - 0
 *					failure - unix error code
 *
 * SIDE EFFECTS:	If the options mbuf does not exist, it the mbuf passed
 *					is used.
 *
 * NOTES:			
 */
rclnp_ctloutput(op, so, level, optname, m)
int				op;				/* type of operation */
struct socket	*so;			/* ptr to socket */
int 			level;			/* level of option */
int				optname;		/* name of option */
struct mbuf		**m;			/* ptr to ptr to option data */
{
	int						error = 0;
	register struct rawisopcb	*rp = sotorawisopcb(so);/* raw cb ptr */

	IFDEBUG(D_CTLOUTPUT)
		printf("rclnp_ctloutput: op = x%x, level = x%x, name = x%x\n",
			op, level, optname);
		if (*m != NULL) {
			printf("rclnp_ctloutput: %d bytes of mbuf data\n", (*m)->m_len);
			dump_buf(mtod((*m), caddr_t), (*m)->m_len);
		}
	ENDDEBUG

#ifdef SOL_NETWORK
	if (level != SOL_NETWORK)
		error = EINVAL;
	else switch (op) {
#else
	switch (op) {
#endif SOL_NETWORK
		case PRCO_SETOPT:
			switch (optname) {
				case CLNPOPT_FLAGS: {
					u_short	usr_flags;
					/* 
					 *	Insure that the data passed has exactly one short in it 
					 */
					if ((*m == NULL) || ((*m)->m_len != sizeof(short))) {
						error = EINVAL;
						break;
					}
					 
					/*
					 *	Don't allow invalid flags to be set
					 */
					usr_flags = (*mtod((*m), short *));

					if ((usr_flags & (CLNP_VFLAGS)) != usr_flags) {
						error = EINVAL;
					} else
						rp->risop_flags |= usr_flags;

					} break;
			
				case CLNPOPT_OPTS:
					if (error = clnp_set_opts(&rp->risop_isop.isop_options, m))
						break;
					rp->risop_isop.isop_optindex = m_get(M_WAIT, MT_SOOPTS);
					(void) clnp_opt_sanity(rp->risop_isop.isop_options, 
						mtod(rp->risop_isop.isop_options, caddr_t),
						rp->risop_isop.isop_options->m_len, 
						mtod(rp->risop_isop.isop_optindex,
							struct clnp_optidx *));
					break;
			} 
			break;

		case PRCO_GETOPT:
#ifdef notdef
			/* commented out to keep hi C quiet */
			switch (optname) {
				default:
					error = EINVAL;
					break;
			}
#endif notdef
			break;
		default:
			error = EINVAL;
			break;
	}
	if (op == PRCO_SETOPT) {
		/* note: m_freem does not barf is *m is NULL */
		m_freem(*m);
		*m = NULL;
	}
	
	return error;
}

/*ARGSUSED*/
clnp_usrreq(so, req, m, nam, control)
	register struct socket *so;
	int req;
	struct mbuf *m, *nam, *control;
{
	register int error = 0;
	register struct rawisopcb *rp = sotorawisopcb(so);

	rp = sotorawisopcb(so);
	switch (req) {

	case PRU_ATTACH:
		if (rp)
			panic("rip_attach");
		MALLOC(rp, struct rawisopcb *, sizeof *rp, M_PCB, M_WAITOK);
		if (rp == 0)
			return (ENOBUFS);
		bzero((caddr_t)rp, sizeof *rp);
		so->so_pcb = (caddr_t)rp;
		break;

	case PRU_DETACH:
		if (rp == 0)
			panic("rip_detach");
		if (rp->risop_isop.isop_options)
			m_freem(rp->risop_isop.isop_options);
		if (rp->risop_isop.isop_route.ro_rt)
			RTFREE(rp->risop_isop.isop_route.ro_rt);
		if (rp->risop_rcb.rcb_laddr)
			rp->risop_rcb.rcb_laddr = 0;
		/* free clnp cached hdr if necessary */
		if (rp->risop_isop.isop_clnpcache != NULL) {
			struct clnp_cache *clcp = 
				mtod(rp->risop_isop.isop_clnpcache, struct clnp_cache *);
			if (clcp->clc_hdr != NULL) {
				m_free(clcp->clc_hdr);
			}
			m_free(rp->risop_isop.isop_clnpcache);
		}
		if (rp->risop_isop.isop_optindex != NULL)
			m_free(rp->risop_isop.isop_optindex);

		break;

	case PRU_BIND:
	    {
		struct sockaddr_iso *addr = mtod(nam, struct sockaddr_iso *);

		if (nam->m_len != sizeof(*addr))
			return (EINVAL);
		if ((ifnet == 0) ||
		    (addr->siso_family != AF_ISO) ||
		    (addr->siso_addr.isoa_len  &&
		     ifa_ifwithaddr((struct sockaddr *)addr) == 0))
			return (EADDRNOTAVAIL);
		rp->risop_isop.isop_sladdr = *addr;
		rp->risop_rcb.rcb_laddr = (struct sockaddr *)
			(rp->risop_isop.isop_laddr = &rp->risop_isop.isop_sladdr);
		return (0);
	    }
	case PRU_CONNECT:
	    {
		struct sockaddr_iso *addr = mtod(nam, struct sockaddr_iso *);

		if ((nam->m_len > sizeof(*addr)) || (addr->siso_len > sizeof(*addr)))
			return (EINVAL);
		if (ifnet == 0)
			return (EADDRNOTAVAIL);
		if (addr->siso_family != AF_ISO)
		rp->risop_isop.isop_sfaddr = *addr;
		rp->risop_rcb.rcb_faddr = (struct sockaddr *)
			(rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr);
		soisconnected(so);
		return (0);
	    }
	}
	error =  raw_usrreq(so, req, m, nam, control);

	if (error && req == PRU_ATTACH && so->so_pcb)
		free((caddr_t)rp, M_PCB);
	return (error);
}
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1991 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)clnp_raw.c 7.8 (Berkeley) 5/6/91
	34	*/
	35
	36	/***********************************************************
	37	Copyright IBM Corporation 1987
	38
	39	All Rights Reserved
	40
	41	Permission to use, copy, modify, and distribute this software and its
	42	documentation for any purpose and without fee is hereby granted,
	43	provided that the above copyright notice appear in all copies and that
	44	both that copyright notice and this permission notice appear in
	45	supporting documentation, and that the name of IBM not be
	46	used in advertising or publicity pertaining to distribution of the
	47	software without specific, written prior permission.
	48
	49	IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
	50	ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
	51	IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
	52	ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	53	WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
	54	ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
	55	SOFTWARE.
	56
	57	******************************************************************/
	58
	59	/*
	60	* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
	61	*/
	62	/* $Header: clnp_raw.c,v 4.2 88/06/29 14:58:56 hagens Exp $ */
	63	/* $Source: /usr/argo/sys/netiso/RCS/clnp_raw.c,v $ */
	64
65	#include "param.h"
66	#include "mbuf.h"
67	#include "domain.h"
68	#include "protosw.h"
69	#include "socket.h"
70	#include "socketvar.h"
71	#include "errno.h"
72	#include "time.h"
73
74	#include "../net/if.h"
75	#include "../net/route.h"
76	#include "../net/raw_cb.h"
77
78	#include "iso.h"
79	#include "iso_pcb.h"
80	#include "clnp.h"
81	#include "clnp_stat.h"
82	#include "argo_debug.h"
83
84	#include "tp_user.h"/* XXX -- defines SOL_NETWORK */
85
86	struct sockproto rclnp_proto = { PF_ISO, 0 };
87	/*
88	* FUNCTION: rclnp_input
89	*
90	* PURPOSE: Setup generic address an protocol structures for
91	* raw input routine, then pass them along with the
92	* mbuf chain.
93	*
94	* RETURNS: none
95	*
96	* SIDE EFFECTS:
97	*
98	* NOTES: The protocol field of rclnp_proto is set to zero indicating
99	* no protocol.
100	*/
101	rclnp_input(m, src, dst, hdrlen)
102	struct mbuf m; / ptr to packet */
103	struct sockaddr_iso src; / ptr to src address */
104	struct sockaddr_iso dst; / ptr to dest address */
105	int hdrlen; /* length (in bytes) of clnp header */
106	{
107	#ifdef TROLL
108	if (trollctl.tr_ops & TR_CHUCK) {
109	m_freem(m);
110	return;
111	}
112	#endif TROLL
113
114	if (raw_input(m, &rclnp_proto, (struct sockaddr *)src,
115	(struct sockaddr *)dst) == 0) {
116	clnp_stat.cns_delivered--;
117	clnp_stat.cns_noproto++;
118	}
119	}
120
121	/*
122	* FUNCTION: rclnp_output
123	*
124	* PURPOSE: Prepare to send a raw clnp packet. Setup src and dest
125	* addresses, count the number of bytes to send, and
126	* call clnp_output.
127	*
128	* RETURNS: success - 0
129	* failure - an appropriate error code
130	*
131	* SIDE EFFECTS:
132	*
133	* NOTES:
134	*/
135	rclnp_output(m0, so)
136	struct mbuf m0; / packet to send */
137	struct socket so; / socket to send from */
138	{
139	register struct mbuf m; / used to scan a chain */
140	int len = 0; /* store length of chain here */
141	struct rawisopcb rp = sotorawisopcb(so); / ptr to raw cb */
142	int error; /* return value of function */
143	int flags; /* flags for clnp_output */
144
145	if (0 == m0->m_flags & M_PKTHDR)
146	return (EINVAL);
147	/*
148	* Set up src address. If user has bound socket to an address, use it.
149	* Otherwise, do not specify src (clnp_output will fill it in).
150	*/
151	if (rp->risop_rcb.rcb_laddr) {
152	if (rp->risop_isop.isop_sladdr.siso_family != AF_ISO) {
153	bad:
154	m_freem(m0);
155	return(EAFNOSUPPORT);
156	}
157	}
158	/* set up dest address */
159	if (rp->risop_rcb.rcb_faddr == 0)
160	goto bad;
161	rp->risop_isop.isop_sfaddr =
162	(struct sockaddr_iso )rp->risop_rcb.rcb_faddr;
163	rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr;
164
165	/* get flags and ship it off */
166	flags = rp->risop_flags & CLNP_VFLAGS;
167
168	error = clnp_output(m0, &rp->risop_isop, m0->m_pkthdr.len,
169	flags\|CLNP_NOCACHE);
170
171	return (error);
172	}
173
174	/*
175	* FUNCTION: rclnp_ctloutput
176	*
177	* PURPOSE: Raw clnp socket option processing
178	* All options are stored inside an mbuf.
179	*
180	* RETURNS: success - 0
181	* failure - unix error code
182	*
183	* SIDE EFFECTS: If the options mbuf does not exist, it the mbuf passed
184	* is used.
185	*
186	* NOTES:
187	*/
188	rclnp_ctloutput(op, so, level, optname, m)
189	int op; /* type of operation */
190	struct socket so; / ptr to socket */
191	int level; /* level of option */
192	int optname; /* name of option */
193	struct mbuf *m; / ptr to ptr to option data */
194	{
195	int error = 0;
196	register struct rawisopcb rp = sotorawisopcb(so);/ raw cb ptr */
197
198	IFDEBUG(D_CTLOUTPUT)
199	printf("rclnp_ctloutput: op = x%x, level = x%x, name = x%x\n",
200	op, level, optname);
201	if (*m != NULL) {
202	printf("rclnp_ctloutput: %d bytes of mbuf data\n", (*m)->m_len);
203	dump_buf(mtod((m), caddr_t), (m)->m_len);
204	}
205	ENDDEBUG
206
207	#ifdef SOL_NETWORK
208	if (level != SOL_NETWORK)
209	error = EINVAL;
210	else switch (op) {
211	#else
212	switch (op) {
213	#endif SOL_NETWORK
214	case PRCO_SETOPT:
215	switch (optname) {
216	case CLNPOPT_FLAGS: {
217	u_short usr_flags;
218	/*
219	* Insure that the data passed has exactly one short in it
220	*/
221	if ((m == NULL) \|\| ((m)->m_len != sizeof(short))) {
222	error = EINVAL;
223	break;
224	}
225
226	/*
227	* Don't allow invalid flags to be set
228	*/
229	usr_flags = (mtod((m), short *));
230
231	if ((usr_flags & (CLNP_VFLAGS)) != usr_flags) {
232	error = EINVAL;
233	} else
234	rp->risop_flags \|= usr_flags;
235
236	} break;
237
238	case CLNPOPT_OPTS:
239	if (error = clnp_set_opts(&rp->risop_isop.isop_options, m))
240	break;
241	rp->risop_isop.isop_optindex = m_get(M_WAIT, MT_SOOPTS);
242	(void) clnp_opt_sanity(rp->risop_isop.isop_options,
243	mtod(rp->risop_isop.isop_options, caddr_t),
244	rp->risop_isop.isop_options->m_len,
245	mtod(rp->risop_isop.isop_optindex,
246	struct clnp_optidx *));
247	break;
248	}
249	break;
250
251	case PRCO_GETOPT:
252	#ifdef notdef
253	/* commented out to keep hi C quiet */
254	switch (optname) {
255	default:
256	error = EINVAL;
257	break;
258	}
259	#endif notdef
260	break;
261	default:
262	error = EINVAL;
263	break;
264	}
265	if (op == PRCO_SETOPT) {
266	/* note: m_freem does not barf is m is NULL /
267	m_freem(*m);
268	*m = NULL;
269	}
270
271	return error;
272	}
273
274	/ARGSUSED/
275	clnp_usrreq(so, req, m, nam, control)
276	register struct socket *so;
277	int req;
278	struct mbuf m, nam, *control;
279	{
280	register int error = 0;
281	register struct rawisopcb *rp = sotorawisopcb(so);
282
283	rp = sotorawisopcb(so);
284	switch (req) {
285
286	case PRU_ATTACH:
287	if (rp)
288	panic("rip_attach");
289	MALLOC(rp, struct rawisopcb , sizeof rp, M_PCB, M_WAITOK);
290	if (rp == 0)
291	return (ENOBUFS);
292	bzero((caddr_t)rp, sizeof *rp);
293	so->so_pcb = (caddr_t)rp;
294	break;
295
296	case PRU_DETACH:
297	if (rp == 0)
298	panic("rip_detach");
299	if (rp->risop_isop.isop_options)
300	m_freem(rp->risop_isop.isop_options);
301	if (rp->risop_isop.isop_route.ro_rt)
302	RTFREE(rp->risop_isop.isop_route.ro_rt);
303	if (rp->risop_rcb.rcb_laddr)
304	rp->risop_rcb.rcb_laddr = 0;
305	/* free clnp cached hdr if necessary */
306	if (rp->risop_isop.isop_clnpcache != NULL) {
307	struct clnp_cache *clcp =
308	mtod(rp->risop_isop.isop_clnpcache, struct clnp_cache *);
309	if (clcp->clc_hdr != NULL) {
310	m_free(clcp->clc_hdr);
311	}
312	m_free(rp->risop_isop.isop_clnpcache);
313	}
314	if (rp->risop_isop.isop_optindex != NULL)
315	m_free(rp->risop_isop.isop_optindex);
316
317	break;
318
319	case PRU_BIND:
320	{
321	struct sockaddr_iso addr = mtod(nam, struct sockaddr_iso );
322
323	if (nam->m_len != sizeof(*addr))
324	return (EINVAL);
325	if ((ifnet == 0) \|\|
326	(addr->siso_family != AF_ISO) \|\|
327	(addr->siso_addr.isoa_len &&
328	ifa_ifwithaddr((struct sockaddr *)addr) == 0))
329	return (EADDRNOTAVAIL);
330	rp->risop_isop.isop_sladdr = *addr;
331	rp->risop_rcb.rcb_laddr = (struct sockaddr *)
332	(rp->risop_isop.isop_laddr = &rp->risop_isop.isop_sladdr);
333	return (0);
334	}
335	case PRU_CONNECT:
336	{
337	struct sockaddr_iso addr = mtod(nam, struct sockaddr_iso );
338
339	if ((nam->m_len > sizeof(addr)) \|\| (addr->siso_len > sizeof(addr)))
340	return (EINVAL);
341	if (ifnet == 0)
342	return (EADDRNOTAVAIL);
343	if (addr->siso_family != AF_ISO)
344	rp->risop_isop.isop_sfaddr = *addr;
345	rp->risop_rcb.rcb_faddr = (struct sockaddr *)
346	(rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr);
347	soisconnected(so);
348	return (0);
349	}
350	}
351	error = raw_usrreq(so, req, m, nam, control);
352
353	if (error && req == PRU_ATTACH && so->so_pcb)
354	free((caddr_t)rp, M_PCB);
355	return (error);
356	}