1 //==========================================================================
3 // src/sys/net/raw_usrreq.c
5 //==========================================================================
6 //####BSDCOPYRIGHTBEGIN####
8 // -------------------------------------------
10 // Portions of this software may have been derived from OpenBSD,
11 // FreeBSD or other sources, and are covered by the appropriate
12 // copyright disclaimers included herein.
14 // Portions created by Red Hat are
15 // Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
17 // -------------------------------------------
19 //####BSDCOPYRIGHTEND####
20 //==========================================================================
23 * Copyright (c) 1980, 1986, 1993
24 * The Regents of the University of California. All rights reserved.
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
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.
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
54 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
55 * $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
58 #include <sys/param.h>
60 #include <sys/protosw.h>
61 #include <sys/socket.h>
62 #include <sys/socketvar.h>
64 #include <net/raw_cb.h>
67 * Initialize raw connection block q.
72 LIST_INIT(&rawcb_list);
77 * Raw protocol input routine. Find the socket
78 * associated with the packet(s) and move them over. If
79 * nothing exists for this packet, drop it.
82 * Raw protocol interface.
85 raw_input(m0, proto, src, dst)
87 register struct sockproto *proto;
88 struct sockaddr *src, *dst;
90 register struct rawcb *rp;
91 register struct mbuf *m = m0;
92 register int sockets = 0;
96 LIST_FOREACH(rp, &rawcb_list, list) {
97 if (rp->rcb_proto.sp_family != proto->sp_family)
99 if (rp->rcb_proto.sp_protocol &&
100 rp->rcb_proto.sp_protocol != proto->sp_protocol)
103 * We assume the lower level routines have
104 * placed the address in a canonical format
105 * suitable for a structure comparison.
107 * Note that if the lengths are not the same
108 * the comparison will fail at the first byte.
110 #define equal(a1, a2) \
111 (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
112 if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
114 if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
118 n = m_copy(m, 0, (int)M_COPYALL);
120 if (sbappendaddr(&last->so_rcv, src,
121 n, (struct mbuf *)0) == 0)
122 /* should notify about lost packet */
130 last = rp->rcb_socket;
133 if (sbappendaddr(&last->so_rcv, src,
134 m, (struct mbuf *)0) == 0)
146 raw_ctlinput(cmd, arg, dummy)
148 struct sockaddr *arg;
152 if (cmd < 0 || cmd > PRC_NCMDS)
158 raw_uabort(struct socket *so)
160 struct rawcb *rp = sotorawcb(so);
166 soisdisconnected(so);
170 /* pru_accept is EOPNOTSUPP */
173 raw_uattach(struct socket *so, int proto, struct proc *p)
175 struct rawcb *rp = sotorawcb(so);
179 return raw_attach(so, proto);
183 raw_ubind(struct socket *so, struct sockaddr *nam, struct proc *p)
189 raw_uconnect(struct socket *so, struct sockaddr *nam, struct proc *p)
194 /* pru_connect2 is EOPNOTSUPP */
195 /* pru_control is EOPNOTSUPP */
198 raw_udetach(struct socket *so)
200 struct rawcb *rp = sotorawcb(so);
210 raw_udisconnect(struct socket *so)
212 struct rawcb *rp = sotorawcb(so);
216 if (rp->rcb_faddr == 0) {
220 soisdisconnected(so);
224 /* pru_listen is EOPNOTSUPP */
227 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
229 struct rawcb *rp = sotorawcb(so);
233 if (rp->rcb_faddr == 0) {
236 *nam = dup_sockaddr(rp->rcb_faddr, 1);
240 /* pru_rcvd is EOPNOTSUPP */
241 /* pru_rcvoob is EOPNOTSUPP */
244 raw_usend(struct socket *so, int flags, struct mbuf *m,
245 struct sockaddr *nam, struct mbuf *control, struct proc *p)
248 struct rawcb *rp = sotorawcb(so);
255 if (flags & PRUS_OOB) {
260 if (control && control->m_len) {
270 } else if (rp->rcb_faddr == 0) {
274 error = (*so->so_proto->pr_output)(m, so);
284 /* pru_sense is null */
287 raw_ushutdown(struct socket *so)
289 struct rawcb *rp = sotorawcb(so);
298 raw_usockaddr(struct socket *so, struct sockaddr **nam)
300 struct rawcb *rp = sotorawcb(so);
304 if (rp->rcb_laddr == 0)
306 *nam = dup_sockaddr(rp->rcb_laddr, 1);
310 struct pr_usrreqs raw_usrreqs = {
311 raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
312 pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
313 raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
314 pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
315 raw_usockaddr, sosend, soreceive, sopoll