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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /*
26: * Copyright (c) 1992, 1993
27: * The Regents of the University of California. All rights reserved.
28: *
29: * Redistribution and use in source and binary forms, with or without
30: * modification, are permitted provided that the following conditions
31: * are met:
32: * 1. Redistributions of source code must retain the above copyright
33: * notice, this list of conditions and the following disclaimer.
34: * 2. Redistributions in binary form must reproduce the above copyright
35: * notice, this list of conditions and the following disclaimer in the
36: * documentation and/or other materials provided with the distribution.
37: * 3. All advertising materials mentioning features or use of this software
38: * must display the following acknowledgement:
39: * This product includes software developed by the University of
40: * California, Berkeley and its contributors.
41: * 4. Neither the name of the University nor the names of its contributors
42: * may be used to endorse or promote products derived from this software
43: * without specific prior written permission.
44: *
45: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
46: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
49: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55: * SUCH DAMAGE.
56: *
57: * @(#)idrp_usrreq.c 8.1 (Berkeley) 6/10/93
58: */
59:
60: #include <sys/param.h>
61: #include <sys/proc.h>
62: #include <sys/systm.h>
63: #include <sys/malloc.h>
64: #include <sys/mbuf.h>
65: #include <sys/socket.h>
66: #include <sys/socketvar.h>
67: #include <sys/protosw.h>
68: #include <sys/errno.h>
69:
70: #include <net/route.h>
71: #include <net/if.h>
72:
73: #include <netiso/argo_debug.h>
74: #include <netiso/iso.h>
75: #include <netiso/clnp.h>
76: #include <netiso/clnl.h>
77: #include <netiso/iso_pcb.h>
78: #include <netiso/iso_var.h>
79:
80: int idrp_input();
81: struct isopcb idrp_isop;
82: static struct sockaddr_iso idrp_addrs[2] =
83: { { sizeof(idrp_addrs), AF_ISO, }, { sizeof(idrp_addrs[1]), AF_ISO, } };
84: /*
85: * IDRP initialization
86: */
87: idrp_init()
88: {
89: extern struct clnl_protosw clnl_protox[256];
90:
91: idrp_isop.isop_next = idrp_isop.isop_prev = &idrp_isop;
92: idrp_isop.isop_faddr = &idrp_isop.isop_sfaddr;
93: idrp_isop.isop_laddr = &idrp_isop.isop_sladdr;
94: idrp_isop.isop_sladdr = idrp_addrs[1];
95: idrp_isop.isop_sfaddr = idrp_addrs[1];
96: clnl_protox[ISO10747_IDRP].clnl_input = idrp_input;
97: }
98:
99: /*
100: * CALLED FROM:
101: * tpclnp_input().
102: * FUNCTION and ARGUMENTS:
103: * Take a packet (m) from clnp, strip off the clnp header
104: * and mke suitable for the idrp socket.
105: * No return value.
106: */
107: idrp_input(m, src, dst)
108: register struct mbuf *m;
109: struct sockaddr_iso *src, *dst;
110: {
111: if (idrp_isop.isop_socket == 0) {
112: bad: m_freem(m);
113: return 0;
114: }
115: bzero(idrp_addrs[0].siso_data, sizeof(idrp_addrs[0].siso_data));
116: bcopy((caddr_t)&(src->siso_addr), (caddr_t)&idrp_addrs[0].siso_addr,
117: 1 + src->siso_nlen);
118: bzero(idrp_addrs[1].siso_data, sizeof(idrp_addrs[1].siso_data));
119: bcopy((caddr_t)&(dst->siso_addr), (caddr_t)&idrp_addrs[1].siso_addr,
120: 1 + dst->siso_nlen);
121: if (sbappendaddr(&idrp_isop.isop_socket->so_rcv,
122: (struct sockaddr *)idrp_addrs, m, (struct mbuf *)0) == 0)
123: goto bad;
124: sorwakeup(idrp_isop.isop_socket);
125: return 0;
126: }
127:
128: idrp_output(m, addr)
129: struct mbuf *m, *addr;
130: {
131: register struct sockaddr_iso *siso = mtod(addr, struct sockaddr_iso *);
132: int s = splnet(), i;
133:
134: bcopy((caddr_t)&(siso->siso_addr),
135: (caddr_t)&idrp_isop.isop_sfaddr.siso_addr, 1 + siso->siso_nlen);
136: siso++;
137: bcopy((caddr_t)&(siso->siso_addr),
138: (caddr_t)&idrp_isop.isop_sladdr.siso_addr, 1 + siso->siso_nlen);
139: i = clnp_output(m, idrp_isop, m->m_pkthdr.len, 0);
140: splx(s);
141: return (i);
142: }
143:
144: u_long idrp_sendspace = 3072; /* really max datagram size */
145: u_long idrp_recvspace = 40 * 1024; /* 40 1K datagrams */
146:
147: /*ARGSUSED*/
148: idrp_usrreq(so, req, m, addr, control)
149: struct socket *so;
150: int req;
151: struct mbuf *m, *addr, *control;
152: {
153: int error = 0;
154:
155: /* Note: need to block idrp_input while changing
156: * the udp pcb queue and/or pcb addresses.
157: */
158: switch (req) {
159:
160: case PRU_ATTACH:
161: if (idrp_isop.isop_socket != NULL) {
162: error = ENXIO;
163: break;
164: }
165: idrp_isop.isop_socket = so;
166: error = soreserve(so, idrp_sendspace, idrp_recvspace);
167: break;
168:
169: case PRU_SHUTDOWN:
170: socantsendmore(so);
171: break;
172:
173: case PRU_SEND:
174: return (idrp_output(m, addr));
175:
176: case PRU_ABORT:
177: soisdisconnected(so);
178: case PRU_DETACH:
179: idrp_isop.isop_socket = 0;
180: break;
181:
182:
183: case PRU_SENSE:
184: /*
185: * stat: don't bother with a blocksize.
186: */
187: return (0);
188:
189: default:
190: return (EOPNOTSUPP); /* do not free mbuf's */
191: }
192:
193: release:
194: if (control) {
195: printf("idrp control data unexpectedly retained\n");
196: m_freem(control);
197: }
198: if (m)
199: m_freem(m);
200: return (error);
201: }
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