2 * Copyright (c) 1980, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
37 #include <sys/param.h>
38 #include <sys/systm.h>
40 #include <sys/protosw.h>
41 #include <sys/socket.h>
42 #include <sys/socketvar.h>
44 #include <net/raw_cb.h>
47 * Initialize raw connection block q.
52 LIST_INIT(&rawcb_list);
57 * Raw protocol input routine. Find the socket
58 * associated with the packet(s) and move them over. If
59 * nothing exists for this packet, drop it.
62 * Raw protocol interface.
65 raw_input(m0, proto, src, dst)
67 register struct sockproto *proto;
68 struct sockaddr *src, *dst;
70 register struct rawcb *rp;
71 register struct mbuf *m = m0;
72 register int sockets = 0;
76 LIST_FOREACH(rp, &rawcb_list, list) {
77 if (rp->rcb_proto.sp_family != proto->sp_family)
79 if (rp->rcb_proto.sp_protocol &&
80 rp->rcb_proto.sp_protocol != proto->sp_protocol)
83 * We assume the lower level routines have
84 * placed the address in a canonical format
85 * suitable for a structure comparison.
87 * Note that if the lengths are not the same
88 * the comparison will fail at the first byte.
90 #define equal(a1, a2) \
91 (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
92 if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
94 if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
98 n = m_copy(m, 0, (int)M_COPYALL);
100 if (sbappendaddr(&last->so_rcv, src,
101 n, (struct mbuf *)0) == 0)
102 /* should notify about lost packet */
110 last = rp->rcb_socket;
113 if (sbappendaddr(&last->so_rcv, src,
114 m, (struct mbuf *)0) == 0)
126 raw_ctlinput(cmd, arg, dummy)
128 struct sockaddr *arg;
132 if (cmd < 0 || cmd > PRC_NCMDS)
138 raw_uabort(struct socket *so)
140 struct rawcb *rp = sotorawcb(so);
146 soisdisconnected(so); /* XXX huh? called after the sofree()? */
150 /* pru_accept is EOPNOTSUPP */
153 raw_uattach(struct socket *so, int proto, struct thread *td)
155 struct rawcb *rp = sotorawcb(so);
160 if (td && (error = suser_td(td)) != 0)
162 return raw_attach(so, proto);
166 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
172 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
177 /* pru_connect2 is EOPNOTSUPP */
178 /* pru_control is EOPNOTSUPP */
181 raw_udetach(struct socket *so)
183 struct rawcb *rp = sotorawcb(so);
193 raw_udisconnect(struct socket *so)
195 struct rawcb *rp = sotorawcb(so);
199 if (rp->rcb_faddr == 0) {
203 soisdisconnected(so);
207 /* pru_listen is EOPNOTSUPP */
210 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
212 struct rawcb *rp = sotorawcb(so);
216 if (rp->rcb_faddr == 0) {
219 *nam = dup_sockaddr(rp->rcb_faddr, 1);
223 /* pru_rcvd is EOPNOTSUPP */
224 /* pru_rcvoob is EOPNOTSUPP */
227 raw_usend(struct socket *so, int flags, struct mbuf *m,
228 struct sockaddr *nam, struct mbuf *control, struct thread *td)
231 struct rawcb *rp = sotorawcb(so);
238 if (flags & PRUS_OOB) {
243 if (control && control->m_len) {
253 } else if (rp->rcb_faddr == 0) {
257 error = (*so->so_proto->pr_output)(m, so);
267 /* pru_sense is null */
270 raw_ushutdown(struct socket *so)
272 struct rawcb *rp = sotorawcb(so);
281 raw_usockaddr(struct socket *so, struct sockaddr **nam)
283 struct rawcb *rp = sotorawcb(so);
287 if (rp->rcb_laddr == 0)
289 *nam = dup_sockaddr(rp->rcb_laddr, 1);
293 struct pr_usrreqs raw_usrreqs = {
294 raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
295 pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
296 raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
297 pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
298 raw_usockaddr, sosend, soreceive, sopoll