[apple/xnu.git] / bsd / netiso / idrp_usrreq.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1992, 1993
 *	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.
 *
 *	@(#)idrp_usrreq.c	8.1 (Berkeley) 6/10/93
 */

#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/errno.h>

#include <net/route.h>
#include <net/if.h>

#include <netiso/argo_debug.h>
#include <netiso/iso.h>
#include <netiso/clnp.h>
#include <netiso/clnl.h>
#include <netiso/iso_pcb.h>
#include <netiso/iso_var.h>

int idrp_input();
struct	isopcb	idrp_isop;
static	struct	sockaddr_iso idrp_addrs[2] =
{  { sizeof(idrp_addrs), AF_ISO, }, { sizeof(idrp_addrs[1]), AF_ISO, } };
/*
 * IDRP initialization
 */
idrp_init()
{
	extern struct clnl_protosw clnl_protox[256];

	idrp_isop.isop_next = idrp_isop.isop_prev = &idrp_isop;
	idrp_isop.isop_faddr = &idrp_isop.isop_sfaddr;
	idrp_isop.isop_laddr = &idrp_isop.isop_sladdr;
	idrp_isop.isop_sladdr = idrp_addrs[1];
	idrp_isop.isop_sfaddr = idrp_addrs[1];
	clnl_protox[ISO10747_IDRP].clnl_input = idrp_input;
}

/*
 * CALLED FROM:
 * 	tpclnp_input().
 * FUNCTION and ARGUMENTS:
 * Take a packet (m) from clnp, strip off the clnp header
 * and mke suitable for the idrp socket.
 * No return value.  
 */
idrp_input(m, src, dst)
	register struct mbuf *m;
	struct sockaddr_iso *src, *dst;
{
	if (idrp_isop.isop_socket == 0) {
	bad:	m_freem(m);
		return 0;
	}
	bzero(idrp_addrs[0].siso_data, sizeof(idrp_addrs[0].siso_data));
	bcopy((caddr_t)&(src->siso_addr), (caddr_t)&idrp_addrs[0].siso_addr,
		1 + src->siso_nlen);
	bzero(idrp_addrs[1].siso_data, sizeof(idrp_addrs[1].siso_data));
	bcopy((caddr_t)&(dst->siso_addr), (caddr_t)&idrp_addrs[1].siso_addr,
		1 + dst->siso_nlen);
	if (sbappendaddr(&idrp_isop.isop_socket->so_rcv,
		(struct sockaddr *)idrp_addrs, m, (struct mbuf *)0) == 0)
		goto bad;
	sorwakeup(idrp_isop.isop_socket);
	return 0;
}

idrp_output(m, addr)
	struct mbuf *m, *addr;
{
	register struct sockaddr_iso *siso = mtod(addr, struct sockaddr_iso *);
	int s = splnet(), i;

	bcopy((caddr_t)&(siso->siso_addr),
	      (caddr_t)&idrp_isop.isop_sfaddr.siso_addr, 1 + siso->siso_nlen);
	siso++;
	bcopy((caddr_t)&(siso->siso_addr),
	      (caddr_t)&idrp_isop.isop_sladdr.siso_addr, 1 + siso->siso_nlen);
	i = clnp_output(m, idrp_isop, m->m_pkthdr.len, 0);
	splx(s);
	return (i);
}

u_long	idrp_sendspace = 3072;		/* really max datagram size */
u_long	idrp_recvspace = 40 * 1024;	/* 40 1K datagrams */

/*ARGSUSED*/
idrp_usrreq(so, req, m, addr, control)
	struct socket *so;
	int req;
	struct mbuf *m, *addr, *control;
{
	int error = 0;

	 /* Note: need to block idrp_input while changing
	 * the udp pcb queue and/or pcb addresses.
	 */
	switch (req) {

	case PRU_ATTACH:
		if (idrp_isop.isop_socket != NULL) {
			error = ENXIO;
			break;
		}
		idrp_isop.isop_socket = so;
		error = soreserve(so, idrp_sendspace, idrp_recvspace);
		break;

	case PRU_SHUTDOWN:
		socantsendmore(so);
		break;

	case PRU_SEND:
		return (idrp_output(m, addr));

	case PRU_ABORT:
		soisdisconnected(so);
	case PRU_DETACH:
		idrp_isop.isop_socket = 0;
		break;


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

	default:
		return (EOPNOTSUPP);	/* do not free mbuf's */
	}

release:
	if (control) {
		printf("idrp control data unexpectedly retained\n");
		m_freem(control);
	}
	if (m)
		m_freem(m);
	return (error);
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1992, 1993
	24	* The Regents of the University of California. All rights reserved.
	25	*
	26	* Redistribution and use in source and binary forms, with or without
	27	* modification, are permitted provided that the following conditions
	28	* are met:
	29	* 1. Redistributions of source code must retain the above copyright
	30	* notice, this list of conditions and the following disclaimer.
	31	* 2. Redistributions in binary form must reproduce the above copyright
	32	* notice, this list of conditions and the following disclaimer in the
	33	* documentation and/or other materials provided with the distribution.
	34	* 3. All advertising materials mentioning features or use of this software
	35	* must display the following acknowledgement:
	36	* This product includes software developed by the University of
	37	* California, Berkeley and its contributors.
	38	* 4. Neither the name of the University nor the names of its contributors
	39	* may be used to endorse or promote products derived from this software
	40	* without specific prior written permission.
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* @(#)idrp_usrreq.c 8.1 (Berkeley) 6/10/93
	55	*/
	56
	57	#include <sys/param.h>
	58	#include <sys/proc.h>
	59	#include <sys/systm.h>
	60	#include <sys/malloc.h>
	61	#include <sys/mbuf.h>
	62	#include <sys/socket.h>
	63	#include <sys/socketvar.h>
	64	#include <sys/protosw.h>
65	#include <sys/errno.h>
66
67	#include <net/route.h>
68	#include <net/if.h>
69
70	#include <netiso/argo_debug.h>
71	#include <netiso/iso.h>
72	#include <netiso/clnp.h>
73	#include <netiso/clnl.h>
74	#include <netiso/iso_pcb.h>
75	#include <netiso/iso_var.h>
76
77	int idrp_input();
78	struct isopcb idrp_isop;
79	static struct sockaddr_iso idrp_addrs[2] =
80	{ { sizeof(idrp_addrs), AF_ISO, }, { sizeof(idrp_addrs[1]), AF_ISO, } };
81	/*
82	* IDRP initialization
83	*/
84	idrp_init()
85	{
86	extern struct clnl_protosw clnl_protox[256];
87
88	idrp_isop.isop_next = idrp_isop.isop_prev = &idrp_isop;
89	idrp_isop.isop_faddr = &idrp_isop.isop_sfaddr;
90	idrp_isop.isop_laddr = &idrp_isop.isop_sladdr;
91	idrp_isop.isop_sladdr = idrp_addrs[1];
92	idrp_isop.isop_sfaddr = idrp_addrs[1];
93	clnl_protox[ISO10747_IDRP].clnl_input = idrp_input;
94	}
95
96	/*
97	* CALLED FROM:
98	* tpclnp_input().
99	* FUNCTION and ARGUMENTS:
100	* Take a packet (m) from clnp, strip off the clnp header
101	* and mke suitable for the idrp socket.
102	* No return value.
103	*/
104	idrp_input(m, src, dst)
105	register struct mbuf *m;
106	struct sockaddr_iso src, dst;
107	{
108	if (idrp_isop.isop_socket == 0) {
109	bad: m_freem(m);
110	return 0;
111	}
112	bzero(idrp_addrs[0].siso_data, sizeof(idrp_addrs[0].siso_data));
113	bcopy((caddr_t)&(src->siso_addr), (caddr_t)&idrp_addrs[0].siso_addr,
114	1 + src->siso_nlen);
115	bzero(idrp_addrs[1].siso_data, sizeof(idrp_addrs[1].siso_data));
116	bcopy((caddr_t)&(dst->siso_addr), (caddr_t)&idrp_addrs[1].siso_addr,
117	1 + dst->siso_nlen);
118	if (sbappendaddr(&idrp_isop.isop_socket->so_rcv,
119	(struct sockaddr )idrp_addrs, m, (struct mbuf )0) == 0)
120	goto bad;
121	sorwakeup(idrp_isop.isop_socket);
122	return 0;
123	}
124
125	idrp_output(m, addr)
126	struct mbuf m, addr;
127	{
128	register struct sockaddr_iso siso = mtod(addr, struct sockaddr_iso );
129	int s = splnet(), i;
130
131	bcopy((caddr_t)&(siso->siso_addr),
132	(caddr_t)&idrp_isop.isop_sfaddr.siso_addr, 1 + siso->siso_nlen);
133	siso++;
134	bcopy((caddr_t)&(siso->siso_addr),
135	(caddr_t)&idrp_isop.isop_sladdr.siso_addr, 1 + siso->siso_nlen);
136	i = clnp_output(m, idrp_isop, m->m_pkthdr.len, 0);
137	splx(s);
138	return (i);
139	}
140
141	u_long idrp_sendspace = 3072; /* really max datagram size */
142	u_long idrp_recvspace = 40 * 1024; /* 40 1K datagrams */
143
144	/ARGSUSED/
145	idrp_usrreq(so, req, m, addr, control)
146	struct socket *so;
147	int req;
148	struct mbuf m, addr, *control;
149	{
150	int error = 0;
151
152	/* Note: need to block idrp_input while changing
153	* the udp pcb queue and/or pcb addresses.
154	*/
155	switch (req) {
156
157	case PRU_ATTACH:
158	if (idrp_isop.isop_socket != NULL) {
159	error = ENXIO;
160	break;
161	}
162	idrp_isop.isop_socket = so;
163	error = soreserve(so, idrp_sendspace, idrp_recvspace);
164	break;
165
166	case PRU_SHUTDOWN:
167	socantsendmore(so);
168	break;
169
170	case PRU_SEND:
171	return (idrp_output(m, addr));
172
173	case PRU_ABORT:
174	soisdisconnected(so);
175	case PRU_DETACH:
176	idrp_isop.isop_socket = 0;
177	break;
178
179
180	case PRU_SENSE:
181	/*
182	* stat: don't bother with a blocksize.
183	*/
184	return (0);
185
186	default:
187	return (EOPNOTSUPP); /* do not free mbuf's */
188	}
189
190	release:
191	if (control) {
192	printf("idrp control data unexpectedly retained\n");
193	m_freem(control);
194	}
195	if (m)
196	m_freem(m);
197	return (error);
198	}