udp6_usrreq.c revision 1.14 1 1.14 itojun /* $NetBSD: udp6_usrreq.c,v 1.14 1999/12/13 15:17:24 itojun Exp $ */
2 1.3 thorpej
3 1.2 itojun /*
4 1.2 itojun * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 1.2 itojun * All rights reserved.
6 1.2 itojun *
7 1.2 itojun * Redistribution and use in source and binary forms, with or without
8 1.2 itojun * modification, are permitted provided that the following conditions
9 1.2 itojun * are met:
10 1.2 itojun * 1. Redistributions of source code must retain the above copyright
11 1.2 itojun * notice, this list of conditions and the following disclaimer.
12 1.2 itojun * 2. Redistributions in binary form must reproduce the above copyright
13 1.2 itojun * notice, this list of conditions and the following disclaimer in the
14 1.2 itojun * documentation and/or other materials provided with the distribution.
15 1.2 itojun * 3. Neither the name of the project nor the names of its contributors
16 1.2 itojun * may be used to endorse or promote products derived from this software
17 1.2 itojun * without specific prior written permission.
18 1.2 itojun *
19 1.2 itojun * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 1.2 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 1.2 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 1.2 itojun * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 1.2 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 1.2 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 1.2 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 1.2 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 1.2 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 1.2 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 1.2 itojun * SUCH DAMAGE.
30 1.2 itojun */
31 1.2 itojun
32 1.2 itojun /*
33 1.2 itojun * Copyright (c) 1982, 1986, 1989, 1993
34 1.2 itojun * The Regents of the University of California. All rights reserved.
35 1.2 itojun *
36 1.2 itojun * Redistribution and use in source and binary forms, with or without
37 1.2 itojun * modification, are permitted provided that the following conditions
38 1.2 itojun * are met:
39 1.2 itojun * 1. Redistributions of source code must retain the above copyright
40 1.2 itojun * notice, this list of conditions and the following disclaimer.
41 1.2 itojun * 2. Redistributions in binary form must reproduce the above copyright
42 1.2 itojun * notice, this list of conditions and the following disclaimer in the
43 1.2 itojun * documentation and/or other materials provided with the distribution.
44 1.2 itojun * 3. All advertising materials mentioning features or use of this software
45 1.2 itojun * must display the following acknowledgement:
46 1.2 itojun * This product includes software developed by the University of
47 1.2 itojun * California, Berkeley and its contributors.
48 1.2 itojun * 4. Neither the name of the University nor the names of its contributors
49 1.2 itojun * may be used to endorse or promote products derived from this software
50 1.2 itojun * without specific prior written permission.
51 1.2 itojun *
52 1.2 itojun * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 1.2 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 1.2 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 1.2 itojun * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 1.2 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 1.2 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 1.2 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 1.2 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 1.2 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 1.2 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 1.2 itojun * SUCH DAMAGE.
63 1.2 itojun *
64 1.2 itojun * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
65 1.2 itojun */
66 1.5 thorpej
67 1.7 itojun #ifdef __NetBSD__ /*XXX*/
68 1.5 thorpej #include "opt_ipsec.h"
69 1.7 itojun #endif
70 1.2 itojun
71 1.2 itojun #include <sys/param.h>
72 1.2 itojun #include <sys/malloc.h>
73 1.2 itojun #include <sys/mbuf.h>
74 1.2 itojun #include <sys/protosw.h>
75 1.2 itojun #include <sys/socket.h>
76 1.2 itojun #include <sys/socketvar.h>
77 1.2 itojun #include <sys/errno.h>
78 1.2 itojun #include <sys/stat.h>
79 1.2 itojun #include <sys/systm.h>
80 1.2 itojun #ifdef __NetBSD__
81 1.2 itojun #include <sys/proc.h>
82 1.2 itojun #endif
83 1.8 itojun #include <sys/syslog.h>
84 1.2 itojun
85 1.2 itojun #include <net/if.h>
86 1.2 itojun #include <net/route.h>
87 1.2 itojun #include <net/if_types.h>
88 1.2 itojun
89 1.2 itojun #include <netinet/in.h>
90 1.2 itojun #include <netinet/in_var.h>
91 1.14 itojun #include <netinet/in_systm.h>
92 1.14 itojun #include <netinet/ip.h>
93 1.14 itojun #include <netinet/ip_var.h>
94 1.14 itojun #include <netinet/in_pcb.h>
95 1.14 itojun #include <netinet/udp.h>
96 1.14 itojun #include <netinet/udp_var.h>
97 1.2 itojun #include <netinet6/ip6.h>
98 1.2 itojun #include <netinet6/in6_pcb.h>
99 1.2 itojun #include <netinet6/ip6_var.h>
100 1.2 itojun #include <netinet6/icmp6.h>
101 1.2 itojun #include <netinet6/udp6_var.h>
102 1.14 itojun #include <netinet6/ip6protosw.h>
103 1.2 itojun
104 1.2 itojun #ifdef IPSEC
105 1.2 itojun #include <netinet6/ipsec.h>
106 1.2 itojun #endif /*IPSEC*/
107 1.2 itojun
108 1.2 itojun #include "faith.h"
109 1.2 itojun
110 1.2 itojun /*
111 1.2 itojun * UDP protocol inplementation.
112 1.2 itojun * Per RFC 768, August, 1980.
113 1.2 itojun */
114 1.2 itojun
115 1.2 itojun struct in6pcb *udp6_last_in6pcb = &udb6;
116 1.2 itojun
117 1.14 itojun #ifndef __NetBSD__
118 1.2 itojun static int in6_mcmatch __P((struct in6pcb *, struct in6_addr *, struct ifnet *));
119 1.14 itojun #endif
120 1.2 itojun static void udp6_detach __P((struct in6pcb *));
121 1.2 itojun static void udp6_notify __P((struct in6pcb *, int));
122 1.2 itojun
123 1.2 itojun void
124 1.2 itojun udp6_init()
125 1.2 itojun {
126 1.2 itojun udb6.in6p_next = udb6.in6p_prev = &udb6;
127 1.2 itojun }
128 1.2 itojun
129 1.14 itojun #ifndef __NetBSD__
130 1.2 itojun static int
131 1.2 itojun in6_mcmatch(in6p, ia6, ifp)
132 1.2 itojun struct in6pcb *in6p;
133 1.2 itojun register struct in6_addr *ia6;
134 1.2 itojun struct ifnet *ifp;
135 1.2 itojun {
136 1.2 itojun struct ip6_moptions *im6o = in6p->in6p_moptions;
137 1.2 itojun struct in6_multi_mship *imm;
138 1.2 itojun
139 1.2 itojun if (im6o == NULL)
140 1.2 itojun return 0;
141 1.2 itojun
142 1.2 itojun for (imm = im6o->im6o_memberships.lh_first; imm != NULL;
143 1.2 itojun imm = imm->i6mm_chain.le_next) {
144 1.2 itojun if ((ifp == NULL ||
145 1.2 itojun imm->i6mm_maddr->in6m_ifp == ifp) &&
146 1.2 itojun IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
147 1.2 itojun ia6))
148 1.2 itojun return 1;
149 1.2 itojun }
150 1.2 itojun return 0;
151 1.2 itojun }
152 1.2 itojun
153 1.2 itojun int
154 1.2 itojun udp6_input(mp, offp, proto)
155 1.2 itojun struct mbuf **mp;
156 1.2 itojun int *offp, proto;
157 1.2 itojun {
158 1.2 itojun struct mbuf *m = *mp;
159 1.2 itojun register struct ip6_hdr *ip6;
160 1.2 itojun register struct udphdr *uh;
161 1.2 itojun register struct in6pcb *in6p;
162 1.2 itojun struct mbuf *opts = 0;
163 1.2 itojun int off = *offp;
164 1.14 itojun u_int32_t plen, ulen;
165 1.2 itojun struct sockaddr_in6 udp_in6;
166 1.2 itojun
167 1.2 itojun #if defined(NFAITH) && 0 < NFAITH
168 1.2 itojun if (m->m_pkthdr.rcvif) {
169 1.2 itojun if (m->m_pkthdr.rcvif->if_type == IFT_FAITH) {
170 1.2 itojun /* send icmp6 host unreach? */
171 1.2 itojun m_freem(m);
172 1.2 itojun return IPPROTO_DONE;
173 1.2 itojun }
174 1.2 itojun }
175 1.2 itojun #endif
176 1.2 itojun udp6stat.udp6s_ipackets++;
177 1.2 itojun
178 1.14 itojun ip6 = mtod(m, struct ip6_hdr *);
179 1.14 itojun /* check for jumbogram is done in ip6_input. we can trust pkthdr.len */
180 1.14 itojun plen = m->m_pkthdr.len - off;
181 1.14 itojun #ifndef PULLDOWN_TEST
182 1.2 itojun IP6_EXTHDR_CHECK(m, off, sizeof(struct udphdr), IPPROTO_DONE);
183 1.2 itojun uh = (struct udphdr *)((caddr_t)ip6 + off);
184 1.14 itojun #else
185 1.14 itojun IP6_EXTHDR_GET(uh, struct udphdr *, m, off, sizeof(struct udhpdr));
186 1.14 itojun if (uh == NULL) {
187 1.14 itojun udp6stat.udp6s_hdrops++;
188 1.14 itojun return IPPROTO_DONE;
189 1.14 itojun }
190 1.14 itojun #endif
191 1.2 itojun ulen = ntohs((u_short)uh->uh_ulen);
192 1.14 itojun if (ulen == 0 && plen > 0xffff) /* jumbogram */
193 1.14 itojun ulen = plen;
194 1.2 itojun
195 1.2 itojun if (plen != ulen) {
196 1.2 itojun udp6stat.udp6s_badlen++;
197 1.2 itojun goto bad;
198 1.2 itojun }
199 1.2 itojun
200 1.2 itojun /*
201 1.2 itojun * Checksum extended UDP header and data.
202 1.2 itojun */
203 1.2 itojun if (uh->uh_sum == 0)
204 1.2 itojun udp6stat.udp6s_nosum++;
205 1.2 itojun else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) {
206 1.2 itojun udp6stat.udp6s_badsum++;
207 1.2 itojun goto bad;
208 1.2 itojun }
209 1.2 itojun
210 1.2 itojun if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
211 1.2 itojun struct in6pcb *last;
212 1.2 itojun
213 1.2 itojun /*
214 1.2 itojun * Deliver a multicast datagram to all sockets
215 1.2 itojun * for which the local and remote addresses and ports match
216 1.2 itojun * those of the incoming datagram. This allows more than
217 1.2 itojun * one process to receive multicasts on the same port.
218 1.2 itojun * (This really ought to be done for unicast datagrams as
219 1.2 itojun * well, but that would cause problems with existing
220 1.2 itojun * applications that open both address-specific sockets and
221 1.2 itojun * a wildcard socket listening to the same port -- they would
222 1.2 itojun * end up receiving duplicates of every unicast datagram.
223 1.2 itojun * Those applications open the multiple sockets to overcome an
224 1.2 itojun * inadequacy of the UDP socket interface, but for backwards
225 1.2 itojun * compatibility we avoid the problem here rather than
226 1.2 itojun * fixing the interface. Maybe 4.5BSD will remedy this?)
227 1.2 itojun */
228 1.2 itojun
229 1.2 itojun /*
230 1.2 itojun * In a case that laddr should be set to the link-local
231 1.2 itojun * address (this happens in RIPng), the multicast address
232 1.2 itojun * specified in the received packet does not match with
233 1.2 itojun * laddr. To cure this situation, the matching is relaxed
234 1.2 itojun * if the receiving interface is the same as one specified
235 1.2 itojun * in the socket and if the destination multicast address
236 1.2 itojun * matches one of the multicast groups specified in the socket.
237 1.2 itojun */
238 1.2 itojun
239 1.2 itojun /*
240 1.2 itojun * Construct sockaddr format source address.
241 1.2 itojun */
242 1.2 itojun bzero(&udp_in6, sizeof(udp_in6));
243 1.2 itojun udp_in6.sin6_len = sizeof(struct sockaddr_in6);
244 1.2 itojun udp_in6.sin6_family = AF_INET6;
245 1.2 itojun udp_in6.sin6_port = uh->uh_sport;
246 1.2 itojun udp_in6.sin6_addr = ip6->ip6_src;
247 1.2 itojun if (IN6_IS_SCOPE_LINKLOCAL(&udp_in6.sin6_addr))
248 1.2 itojun udp_in6.sin6_addr.s6_addr16[1] = 0;
249 1.2 itojun if (m->m_pkthdr.rcvif) {
250 1.2 itojun if (IN6_IS_SCOPE_LINKLOCAL(&udp_in6.sin6_addr)) {
251 1.2 itojun udp_in6.sin6_scope_id =
252 1.2 itojun m->m_pkthdr.rcvif->if_index;
253 1.2 itojun } else
254 1.2 itojun udp_in6.sin6_scope_id = 0;
255 1.2 itojun } else
256 1.2 itojun udp_in6.sin6_scope_id = 0;
257 1.2 itojun /*
258 1.2 itojun * KAME note: usually we drop udphdr from mbuf here.
259 1.2 itojun * We need udphdr for IPsec processing so we do that later.
260 1.2 itojun */
261 1.2 itojun
262 1.2 itojun /*
263 1.2 itojun * Locate pcb(s) for datagram.
264 1.2 itojun * (Algorithm copied from raw_intr().)
265 1.2 itojun */
266 1.2 itojun last = NULL;
267 1.2 itojun for (in6p = udb6.in6p_next;
268 1.2 itojun in6p != &udb6;
269 1.2 itojun in6p = in6p->in6p_next) {
270 1.2 itojun if (in6p->in6p_lport != uh->uh_dport)
271 1.2 itojun continue;
272 1.14 itojun if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) {
273 1.2 itojun if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr,
274 1.2 itojun &ip6->ip6_dst) &&
275 1.2 itojun !in6_mcmatch(in6p, &ip6->ip6_dst,
276 1.2 itojun m->m_pkthdr.rcvif))
277 1.2 itojun continue;
278 1.2 itojun }
279 1.14 itojun if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
280 1.2 itojun if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr,
281 1.2 itojun &ip6->ip6_src) ||
282 1.2 itojun in6p->in6p_fport != uh->uh_sport)
283 1.2 itojun continue;
284 1.2 itojun }
285 1.2 itojun
286 1.2 itojun if (last != NULL) {
287 1.2 itojun struct mbuf *n;
288 1.2 itojun
289 1.2 itojun #ifdef IPSEC
290 1.2 itojun /*
291 1.2 itojun * Check AH/ESP integrity.
292 1.2 itojun */
293 1.2 itojun if (last != NULL && ipsec6_in_reject(m, last)) {
294 1.2 itojun ipsec6stat.in_polvio++;
295 1.2 itojun /* do not inject data into pcb */
296 1.2 itojun } else
297 1.2 itojun #endif /*IPSEC*/
298 1.2 itojun if ((n = m_copy(m, 0, M_COPYALL)) != NULL) {
299 1.2 itojun /*
300 1.2 itojun * KAME NOTE: do not
301 1.2 itojun * m_copy(m, offset, ...) above.
302 1.2 itojun * sbappendaddr() expects M_PKTHDR,
303 1.2 itojun * and m_copy() will copy M_PKTHDR
304 1.2 itojun * only if offset is 0.
305 1.2 itojun */
306 1.8 itojun if (last->in6p_flags & IN6P_CONTROLOPTS
307 1.8 itojun || last->in6p_socket->so_options & SO_TIMESTAMP) {
308 1.2 itojun ip6_savecontrol(last, &opts,
309 1.2 itojun ip6, n);
310 1.2 itojun }
311 1.2 itojun
312 1.11 itojun m_adj(n, off + sizeof(struct udphdr));
313 1.2 itojun if (sbappendaddr(&last->in6p_socket->so_rcv,
314 1.2 itojun (struct sockaddr *)&udp_in6,
315 1.2 itojun n, opts) == 0) {
316 1.2 itojun m_freem(n);
317 1.2 itojun if (opts)
318 1.2 itojun m_freem(opts);
319 1.2 itojun udp6stat.udp6s_fullsock++;
320 1.2 itojun } else
321 1.2 itojun sorwakeup(last->in6p_socket);
322 1.2 itojun opts = 0;
323 1.2 itojun }
324 1.2 itojun }
325 1.2 itojun last = in6p;
326 1.2 itojun /*
327 1.2 itojun * Don't look for additional matches if this one does
328 1.2 itojun * not have either the SO_REUSEPORT or SO_REUSEADDR
329 1.2 itojun * socket options set. This heuristic avoids searching
330 1.2 itojun * through all pcbs in the common case of a non-shared
331 1.2 itojun * port. It assumes that an application will never
332 1.2 itojun * clear these options after setting them.
333 1.2 itojun */
334 1.2 itojun if ((last->in6p_socket->so_options &
335 1.2 itojun (SO_REUSEPORT|SO_REUSEADDR)) == 0)
336 1.2 itojun break;
337 1.2 itojun }
338 1.2 itojun
339 1.2 itojun if (last == NULL) {
340 1.2 itojun /*
341 1.2 itojun * No matching pcb found; discard datagram.
342 1.2 itojun * (No need to send an ICMP Port Unreachable
343 1.2 itojun * for a broadcast or multicast datgram.)
344 1.2 itojun */
345 1.2 itojun udp6stat.udp6s_noport++;
346 1.2 itojun udp6stat.udp6s_noportmcast++;
347 1.2 itojun goto bad;
348 1.2 itojun }
349 1.2 itojun #ifdef IPSEC
350 1.2 itojun /*
351 1.2 itojun * Check AH/ESP integrity.
352 1.2 itojun */
353 1.2 itojun if (last != NULL && ipsec6_in_reject(m, last)) {
354 1.2 itojun ipsec6stat.in_polvio++;
355 1.2 itojun goto bad;
356 1.2 itojun }
357 1.2 itojun #endif /*IPSEC*/
358 1.8 itojun if (last->in6p_flags & IN6P_CONTROLOPTS
359 1.8 itojun || last->in6p_socket->so_options & SO_TIMESTAMP) {
360 1.2 itojun ip6_savecontrol(last, &opts, ip6, m);
361 1.8 itojun }
362 1.2 itojun
363 1.2 itojun m_adj(m, off + sizeof(struct udphdr));
364 1.2 itojun if (sbappendaddr(&last->in6p_socket->so_rcv,
365 1.2 itojun (struct sockaddr *)&udp_in6,
366 1.2 itojun m, opts) == 0) {
367 1.2 itojun udp6stat.udp6s_fullsock++;
368 1.2 itojun goto bad;
369 1.2 itojun }
370 1.2 itojun sorwakeup(last->in6p_socket);
371 1.2 itojun return IPPROTO_DONE;
372 1.2 itojun }
373 1.2 itojun /*
374 1.2 itojun * Locate pcb for datagram.
375 1.2 itojun */
376 1.2 itojun in6p = udp6_last_in6pcb;
377 1.2 itojun if (in6p->in6p_lport != uh->uh_dport ||
378 1.2 itojun in6p->in6p_fport != uh->uh_sport ||
379 1.2 itojun !IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src) ||
380 1.2 itojun !IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst)) {
381 1.2 itojun in6p = in6_pcblookup(&udb6,
382 1.2 itojun &ip6->ip6_src, uh->uh_sport,
383 1.2 itojun &ip6->ip6_dst, uh->uh_dport,
384 1.2 itojun IN6PLOOKUP_WILDCARD);
385 1.2 itojun if (in6p)
386 1.2 itojun udp6_last_in6pcb = in6p;
387 1.2 itojun udp6stat.udp6ps_pcbcachemiss++;
388 1.2 itojun }
389 1.2 itojun if (in6p == 0) {
390 1.2 itojun udp6stat.udp6s_noport++;
391 1.2 itojun if (m->m_flags & M_MCAST) {
392 1.2 itojun printf("UDP6: M_MCAST is set in a unicast packet.\n");
393 1.2 itojun udp6stat.udp6s_noportmcast++;
394 1.2 itojun goto bad;
395 1.2 itojun }
396 1.2 itojun icmp6_error(m, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT, 0);
397 1.2 itojun return IPPROTO_DONE;
398 1.2 itojun }
399 1.2 itojun #ifdef IPSEC
400 1.2 itojun /*
401 1.2 itojun * Check AH/ESP integrity.
402 1.2 itojun */
403 1.2 itojun if (in6p != NULL && ipsec6_in_reject(m, in6p)) {
404 1.2 itojun ipsec6stat.in_polvio++;
405 1.2 itojun goto bad;
406 1.2 itojun }
407 1.2 itojun #endif /*IPSEC*/
408 1.2 itojun
409 1.2 itojun /*
410 1.2 itojun * Construct sockaddr format source address.
411 1.2 itojun * Stuff source address and datagram in user buffer.
412 1.2 itojun */
413 1.2 itojun bzero(&udp_in6, sizeof(udp_in6));
414 1.2 itojun udp_in6.sin6_len = sizeof(struct sockaddr_in6);
415 1.2 itojun udp_in6.sin6_family = AF_INET6;
416 1.2 itojun udp_in6.sin6_port = uh->uh_sport;
417 1.2 itojun udp_in6.sin6_addr = ip6->ip6_src;
418 1.2 itojun if (IN6_IS_SCOPE_LINKLOCAL(&udp_in6.sin6_addr))
419 1.2 itojun udp_in6.sin6_addr.s6_addr16[1] = 0;
420 1.2 itojun if (m->m_pkthdr.rcvif) {
421 1.2 itojun if (IN6_IS_SCOPE_LINKLOCAL(&udp_in6.sin6_addr))
422 1.2 itojun udp_in6.sin6_scope_id = m->m_pkthdr.rcvif->if_index;
423 1.2 itojun else
424 1.2 itojun udp_in6.sin6_scope_id = 0;
425 1.2 itojun } else
426 1.2 itojun udp_in6.sin6_scope_id = 0;
427 1.8 itojun if (in6p->in6p_flags & IN6P_CONTROLOPTS
428 1.8 itojun || in6p->in6p_socket->so_options & SO_TIMESTAMP) {
429 1.2 itojun ip6_savecontrol(in6p, &opts, ip6, m);
430 1.8 itojun }
431 1.2 itojun
432 1.2 itojun m_adj(m, off + sizeof(struct udphdr));
433 1.2 itojun if (sbappendaddr(&in6p->in6p_socket->so_rcv,
434 1.2 itojun (struct sockaddr *)&udp_in6,
435 1.2 itojun m, opts) == 0) {
436 1.2 itojun udp6stat.udp6s_fullsock++;
437 1.2 itojun goto bad;
438 1.2 itojun }
439 1.2 itojun sorwakeup(in6p->in6p_socket);
440 1.2 itojun return IPPROTO_DONE;
441 1.2 itojun bad:
442 1.2 itojun if (m)
443 1.2 itojun m_freem(m);
444 1.2 itojun if (opts)
445 1.2 itojun m_freem(opts);
446 1.2 itojun return IPPROTO_DONE;
447 1.2 itojun }
448 1.14 itojun #endif
449 1.2 itojun
450 1.2 itojun /*
451 1.2 itojun * Notify a udp user of an asynchronous error;
452 1.2 itojun * just wake up so tat he can collect error status.
453 1.2 itojun */
454 1.2 itojun static void
455 1.2 itojun udp6_notify(in6p, errno)
456 1.2 itojun register struct in6pcb *in6p;
457 1.2 itojun int errno;
458 1.2 itojun {
459 1.2 itojun in6p->in6p_socket->so_error = errno;
460 1.2 itojun sorwakeup(in6p->in6p_socket);
461 1.2 itojun sowwakeup(in6p->in6p_socket);
462 1.2 itojun }
463 1.2 itojun
464 1.2 itojun void
465 1.14 itojun udp6_ctlinput(cmd, sa, d)
466 1.2 itojun int cmd;
467 1.2 itojun struct sockaddr *sa;
468 1.14 itojun void *d;
469 1.2 itojun {
470 1.2 itojun register struct udphdr *uhp;
471 1.2 itojun struct udphdr uh;
472 1.7 itojun struct sockaddr_in6 sa6;
473 1.14 itojun register struct ip6_hdr *ip6;
474 1.14 itojun struct mbuf *m;
475 1.14 itojun int off;
476 1.2 itojun
477 1.10 itojun if (sa->sa_family != AF_INET6 ||
478 1.10 itojun sa->sa_len != sizeof(struct sockaddr_in6))
479 1.10 itojun return;
480 1.14 itojun
481 1.2 itojun #if 0
482 1.2 itojun if (cmd == PRC_IFNEWADDR)
483 1.2 itojun in6_mrejoin(&udb6);
484 1.2 itojun else
485 1.2 itojun #endif
486 1.2 itojun if (!PRC_IS_REDIRECT(cmd) &&
487 1.2 itojun ((unsigned)cmd >= PRC_NCMDS || inet6ctlerrmap[cmd] == 0))
488 1.2 itojun return;
489 1.7 itojun
490 1.14 itojun /* if the parameter is from icmp6, decode it. */
491 1.14 itojun if (d != NULL) {
492 1.14 itojun struct ip6ctlparam *ip6cp = (struct ip6ctlparam *)d;
493 1.14 itojun m = ip6cp->ip6c_m;
494 1.14 itojun ip6 = ip6cp->ip6c_ip6;
495 1.14 itojun off = ip6cp->ip6c_off;
496 1.14 itojun } else {
497 1.14 itojun m = NULL;
498 1.14 itojun ip6 = NULL;
499 1.14 itojun }
500 1.14 itojun
501 1.7 itojun /* translate addresses into internal form */
502 1.7 itojun sa6 = *(struct sockaddr_in6 *)sa;
503 1.7 itojun if (IN6_IS_ADDR_LINKLOCAL(&sa6.sin6_addr))
504 1.7 itojun sa6.sin6_addr.s6_addr16[1] = htons(m->m_pkthdr.rcvif->if_index);
505 1.7 itojun
506 1.2 itojun if (ip6) {
507 1.2 itojun /*
508 1.2 itojun * XXX: We assume that when IPV6 is non NULL,
509 1.2 itojun * M and OFF are valid.
510 1.2 itojun */
511 1.7 itojun struct in6_addr s;
512 1.7 itojun
513 1.7 itojun /* translate addresses into internal form */
514 1.12 itojun memcpy(&s, &ip6->ip6_src, sizeof(s));
515 1.7 itojun if (IN6_IS_ADDR_LINKLOCAL(&s))
516 1.7 itojun s.s6_addr16[1] = htons(m->m_pkthdr.rcvif->if_index);
517 1.7 itojun
518 1.2 itojun if (m->m_len < off + sizeof(uh)) {
519 1.2 itojun /*
520 1.2 itojun * this should be rare case,
521 1.2 itojun * so we compromise on this copy...
522 1.2 itojun */
523 1.2 itojun m_copydata(m, off, sizeof(uh), (caddr_t)&uh);
524 1.2 itojun uhp = &uh;
525 1.2 itojun } else
526 1.2 itojun uhp = (struct udphdr *)(mtod(m, caddr_t) + off);
527 1.7 itojun (void) in6_pcbnotify(&udb6, (struct sockaddr *)&sa6,
528 1.7 itojun uhp->uh_dport, &s,
529 1.2 itojun uhp->uh_sport, cmd, udp6_notify);
530 1.2 itojun } else {
531 1.7 itojun (void) in6_pcbnotify(&udb6, (struct sockaddr *)&sa6, 0,
532 1.7 itojun &zeroin6_addr, 0, cmd, udp6_notify);
533 1.2 itojun }
534 1.2 itojun }
535 1.2 itojun
536 1.2 itojun int
537 1.2 itojun udp6_output(in6p, m, addr6, control)
538 1.2 itojun register struct in6pcb *in6p;
539 1.2 itojun register struct mbuf *m;
540 1.2 itojun struct mbuf *addr6, *control;
541 1.2 itojun {
542 1.14 itojun register u_int32_t ulen = m->m_pkthdr.len;
543 1.14 itojun u_int32_t plen = sizeof(struct udphdr) + ulen;
544 1.2 itojun struct ip6_hdr *ip6;
545 1.2 itojun struct udphdr *udp6;
546 1.14 itojun struct in6_addr *laddr, *faddr;
547 1.14 itojun u_short fport;
548 1.14 itojun int error = 0;
549 1.2 itojun struct ip6_pktopts opt, *stickyopt = in6p->in6p_outputopts;
550 1.14 itojun int priv;
551 1.2 itojun struct proc *p = curproc; /* XXX */
552 1.14 itojun int af, hlen;
553 1.14 itojun #ifdef INET
554 1.14 itojun struct ip *ip;
555 1.14 itojun #endif
556 1.2 itojun
557 1.14 itojun priv = 0;
558 1.2 itojun if (p && !suser(p->p_ucred, &p->p_acflag))
559 1.2 itojun priv = 1;
560 1.2 itojun if (control) {
561 1.2 itojun if ((error = ip6_setpktoptions(control, &opt, priv)) != 0)
562 1.2 itojun goto release;
563 1.2 itojun in6p->in6p_outputopts = &opt;
564 1.2 itojun }
565 1.2 itojun
566 1.2 itojun if (addr6) {
567 1.14 itojun /*
568 1.14 itojun * IPv4 version of udp_output calls in_pcbconnect in this case,
569 1.14 itojun * which needs splnet and affects performance.
570 1.14 itojun * Since we saw no essential reason for calling in_pcbconnect,
571 1.14 itojun * we get rid of such kind of logic, and call in6_selectsrc
572 1.14 itojun * and In6_pcbsetport in order to fill in the local address
573 1.14 itojun * and the local port.
574 1.14 itojun */
575 1.14 itojun struct sockaddr_in6 *sin6 = mtod(addr6, struct sockaddr_in6 *);
576 1.14 itojun
577 1.14 itojun if (addr6->m_len != sizeof(*sin6)) {
578 1.14 itojun error = EINVAL;
579 1.14 itojun goto release;
580 1.14 itojun }
581 1.14 itojun if (sin6->sin6_family != AF_INET6) {
582 1.14 itojun error = EAFNOSUPPORT;
583 1.14 itojun goto release;
584 1.14 itojun }
585 1.14 itojun if (sin6->sin6_port == 0) {
586 1.14 itojun error = EADDRNOTAVAIL;
587 1.14 itojun goto release;
588 1.14 itojun }
589 1.14 itojun
590 1.14 itojun if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
591 1.2 itojun error = EISCONN;
592 1.2 itojun goto release;
593 1.2 itojun }
594 1.14 itojun
595 1.14 itojun faddr = &sin6->sin6_addr;
596 1.14 itojun fport = sin6->sin6_port; /* allow 0 port */
597 1.2 itojun /*
598 1.14 itojun * If the scope of the destination is link-local,
599 1.14 itojun * embed the interface
600 1.14 itojun * index in the address.
601 1.14 itojun *
602 1.14 itojun * XXX advanced-api value overrides sin6_scope_id
603 1.2 itojun */
604 1.14 itojun if (IN6_IS_ADDR_LINKLOCAL(faddr) ||
605 1.14 itojun IN6_IS_ADDR_MC_LINKLOCAL(faddr)) {
606 1.14 itojun struct ip6_pktopts *optp = in6p->in6p_outputopts;
607 1.14 itojun struct in6_pktinfo *pi = NULL;
608 1.14 itojun struct ifnet *oifp = NULL;
609 1.14 itojun struct ip6_moptions *mopt = NULL;
610 1.14 itojun
611 1.14 itojun /*
612 1.14 itojun * XXX Boundary check is assumed to be already done in
613 1.14 itojun * ip6_setpktoptions().
614 1.14 itojun */
615 1.14 itojun if (optp && (pi = optp->ip6po_pktinfo) &&
616 1.14 itojun pi->ipi6_ifindex) {
617 1.14 itojun faddr->s6_addr16[1] = htons(pi->ipi6_ifindex);
618 1.14 itojun oifp = ifindex2ifnet[pi->ipi6_ifindex];
619 1.14 itojun }
620 1.14 itojun else if (IN6_IS_ADDR_MULTICAST(faddr) &&
621 1.14 itojun (mopt = in6p->in6p_moptions) &&
622 1.14 itojun mopt->im6o_multicast_ifp) {
623 1.14 itojun oifp = mopt->im6o_multicast_ifp;
624 1.14 itojun faddr->s6_addr16[1] = oifp->if_index;
625 1.14 itojun } else if (sin6->sin6_scope_id) {
626 1.14 itojun /* boundary check */
627 1.14 itojun if (sin6->sin6_scope_id < 0
628 1.14 itojun || if_index < sin6->sin6_scope_id) {
629 1.14 itojun error = ENXIO; /* XXX EINVAL? */
630 1.14 itojun goto release;
631 1.14 itojun }
632 1.14 itojun /* XXX */
633 1.14 itojun faddr->s6_addr16[1] =
634 1.14 itojun htons(sin6->sin6_scope_id & 0xffff);
635 1.14 itojun }
636 1.14 itojun }
637 1.14 itojun
638 1.14 itojun if (!IN6_IS_ADDR_V4MAPPED(faddr)) {
639 1.14 itojun laddr = in6_selectsrc(sin6, in6p->in6p_outputopts,
640 1.14 itojun in6p->in6p_moptions,
641 1.14 itojun &in6p->in6p_route,
642 1.14 itojun &in6p->in6p_laddr, &error);
643 1.14 itojun } else
644 1.14 itojun laddr = &in6p->in6p_laddr; /*XXX*/
645 1.14 itojun if (laddr == NULL) {
646 1.14 itojun if (error == 0)
647 1.14 itojun error = EADDRNOTAVAIL;
648 1.2 itojun goto release;
649 1.2 itojun }
650 1.14 itojun if (in6p->in6p_lport == 0 &&
651 1.14 itojun (error = in6_pcbsetport(laddr, in6p)) != 0)
652 1.14 itojun goto release;
653 1.2 itojun } else {
654 1.14 itojun if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
655 1.2 itojun error = ENOTCONN;
656 1.2 itojun goto release;
657 1.2 itojun }
658 1.14 itojun laddr = &in6p->in6p_laddr;
659 1.14 itojun faddr = &in6p->in6p_faddr;
660 1.14 itojun fport = in6p->in6p_fport;
661 1.2 itojun }
662 1.14 itojun
663 1.14 itojun if (!IN6_IS_ADDR_V4MAPPED(faddr)) {
664 1.14 itojun af = AF_INET6;
665 1.14 itojun hlen = sizeof(struct ip6_hdr);
666 1.14 itojun } else {
667 1.14 itojun af = AF_INET;
668 1.14 itojun hlen = sizeof(struct ip);
669 1.14 itojun }
670 1.14 itojun
671 1.2 itojun /*
672 1.2 itojun * Calculate data length and get a mbuf
673 1.2 itojun * for UDP and IP6 headers.
674 1.2 itojun */
675 1.14 itojun M_PREPEND(m, hlen + sizeof(struct udphdr), M_DONTWAIT);
676 1.2 itojun if (m == 0) {
677 1.2 itojun error = ENOBUFS;
678 1.2 itojun goto release;
679 1.2 itojun }
680 1.2 itojun
681 1.2 itojun /*
682 1.2 itojun * Stuff checksum and output datagram.
683 1.2 itojun */
684 1.14 itojun udp6 = (struct udphdr *)(mtod(m, caddr_t) + hlen);
685 1.14 itojun udp6->uh_sport = in6p->in6p_lport; /* lport is always set in the PCB */
686 1.14 itojun udp6->uh_dport = fport;
687 1.14 itojun if (plen <= 0xffff)
688 1.14 itojun udp6->uh_ulen = htons((u_short)plen);
689 1.14 itojun else
690 1.14 itojun udp6->uh_ulen = 0;
691 1.14 itojun udp6->uh_sum = 0;
692 1.14 itojun
693 1.14 itojun switch (af) {
694 1.14 itojun case AF_INET6:
695 1.14 itojun ip6 = mtod(m, struct ip6_hdr *);
696 1.14 itojun ip6->ip6_flow = in6p->in6p_flowinfo & IPV6_FLOWINFO_MASK;
697 1.14 itojun ip6->ip6_vfc = IPV6_VERSION;
698 1.2 itojun #if 0 /* ip6_plen will be filled in ip6_output. */
699 1.14 itojun ip6->ip6_plen = htons((u_short)plen);
700 1.2 itojun #endif
701 1.14 itojun ip6->ip6_nxt = IPPROTO_UDP;
702 1.14 itojun ip6->ip6_hlim = in6_selecthlim(in6p,
703 1.14 itojun in6p->in6p_route.ro_rt ?
704 1.14 itojun in6p->in6p_route.ro_rt->rt_ifp : NULL);
705 1.14 itojun ip6->ip6_src = *laddr;
706 1.14 itojun ip6->ip6_dst = *faddr;
707 1.14 itojun
708 1.14 itojun if ((udp6->uh_sum = in6_cksum(m, IPPROTO_UDP,
709 1.14 itojun sizeof(struct ip6_hdr), plen)) == 0) {
710 1.14 itojun udp6->uh_sum = 0xffff;
711 1.14 itojun }
712 1.14 itojun
713 1.14 itojun udp6stat.udp6s_opackets++;
714 1.14 itojun #ifdef IPSEC
715 1.14 itojun m->m_pkthdr.rcvif = (struct ifnet *)in6p->in6p_socket;
716 1.14 itojun #endif /*IPSEC*/
717 1.14 itojun error = ip6_output(m, in6p->in6p_outputopts, &in6p->in6p_route,
718 1.14 itojun 0, in6p->in6p_moptions, NULL);
719 1.14 itojun break;
720 1.14 itojun case AF_INET:
721 1.14 itojun #ifdef INET
722 1.14 itojun /* can't transmit jumbogram over IPv4 */
723 1.14 itojun if (plen > 0xffff) {
724 1.14 itojun error = EMSGSIZE;
725 1.14 itojun goto release;
726 1.14 itojun }
727 1.14 itojun
728 1.14 itojun ip = mtod(m, struct ip *);
729 1.2 itojun
730 1.14 itojun ip->ip_len = plen;
731 1.14 itojun ip->ip_p = IPPROTO_UDP;
732 1.14 itojun ip->ip_ttl = in6p->in6p_hops; /*XXX*/
733 1.14 itojun ip->ip_tos = 0; /*XXX*/
734 1.14 itojun bcopy(&laddr->s6_addr[12], &ip->ip_src, sizeof(ip->ip_src));
735 1.14 itojun bcopy(&faddr->s6_addr[12], &ip->ip_dst, sizeof(ip->ip_dst));
736 1.14 itojun
737 1.14 itojun udp6->uh_sum = 0;
738 1.14 itojun if ((udp6->uh_sum = in_cksum(m, ulen)) == 0)
739 1.14 itojun udp6->uh_sum = 0xffff;
740 1.2 itojun
741 1.14 itojun udpstat.udps_opackets++;
742 1.2 itojun #ifdef IPSEC
743 1.14 itojun m->m_pkthdr.rcvif = NULL; /*XXX*/
744 1.2 itojun #endif /*IPSEC*/
745 1.14 itojun error = ip_output(m, NULL, &in6p->in6p_route, 0 /*XXX*/);
746 1.14 itojun break;
747 1.14 itojun #else
748 1.14 itojun error = EAFNOSUPPORT;
749 1.14 itojun goto release;
750 1.14 itojun #endif
751 1.2 itojun }
752 1.2 itojun goto releaseopt;
753 1.2 itojun
754 1.2 itojun release:
755 1.2 itojun m_freem(m);
756 1.2 itojun
757 1.2 itojun releaseopt:
758 1.2 itojun if (control) {
759 1.2 itojun in6p->in6p_outputopts = stickyopt;
760 1.2 itojun m_freem(control);
761 1.2 itojun }
762 1.2 itojun return(error);
763 1.2 itojun }
764 1.2 itojun
765 1.2 itojun extern int udp6_sendspace;
766 1.2 itojun extern int udp6_recvspace;
767 1.2 itojun
768 1.2 itojun int
769 1.2 itojun udp6_usrreq(so, req, m, addr6, control, p)
770 1.2 itojun struct socket *so;
771 1.2 itojun int req;
772 1.2 itojun struct mbuf *m, *addr6, *control;
773 1.2 itojun struct proc *p;
774 1.2 itojun {
775 1.2 itojun struct in6pcb *in6p = sotoin6pcb(so);
776 1.2 itojun int error = 0;
777 1.2 itojun int s;
778 1.2 itojun
779 1.2 itojun /*
780 1.2 itojun * MAPPED_ADDR implementation info:
781 1.2 itojun * Mapped addr support for PRU_CONTROL is not necessary.
782 1.2 itojun * Because typical user of PRU_CONTROL is such as ifconfig,
783 1.2 itojun * and they don't associate any addr to their socket. Then
784 1.2 itojun * socket family is only hint about the PRU_CONTROL'ed address
785 1.2 itojun * family, especially when getting addrs from kernel.
786 1.2 itojun * So AF_INET socket need to be used to control AF_INET addrs,
787 1.2 itojun * and AF_INET6 socket for AF_INET6 addrs.
788 1.2 itojun */
789 1.2 itojun if (req == PRU_CONTROL)
790 1.2 itojun return(in6_control(so, (u_long)m, (caddr_t)addr6,
791 1.2 itojun (struct ifnet *)control, p));
792 1.2 itojun
793 1.2 itojun if (in6p == NULL && req != PRU_ATTACH) {
794 1.2 itojun error = EINVAL;
795 1.2 itojun goto release;
796 1.2 itojun }
797 1.2 itojun
798 1.2 itojun switch (req) {
799 1.2 itojun case PRU_ATTACH:
800 1.2 itojun /*
801 1.2 itojun * MAPPED_ADDR implementation spec:
802 1.2 itojun * Always attach for IPv6,
803 1.2 itojun * and only when necessary for IPv4.
804 1.2 itojun */
805 1.2 itojun if (in6p != NULL) {
806 1.2 itojun error = EINVAL;
807 1.2 itojun break;
808 1.2 itojun }
809 1.4 itojun s = splsoftnet();
810 1.2 itojun error = in6_pcballoc(so, &udb6);
811 1.2 itojun splx(s);
812 1.2 itojun if (error)
813 1.2 itojun break;
814 1.2 itojun error = soreserve(so, udp6_sendspace, udp6_recvspace);
815 1.2 itojun if (error)
816 1.2 itojun break;
817 1.2 itojun in6p = sotoin6pcb(so);
818 1.2 itojun in6p->in6p_cksum = -1; /* just to be sure */
819 1.2 itojun #ifdef IPSEC
820 1.14 itojun error = ipsec_init_policy(&in6p->in6p_sp);
821 1.14 itojun if (error != 0) {
822 1.13 itojun in6_pcbdetach(in6p);
823 1.14 itojun break;
824 1.14 itojun }
825 1.2 itojun #endif /*IPSEC*/
826 1.2 itojun break;
827 1.2 itojun
828 1.2 itojun case PRU_DETACH:
829 1.2 itojun udp6_detach(in6p);
830 1.2 itojun break;
831 1.2 itojun
832 1.2 itojun case PRU_BIND:
833 1.4 itojun s = splsoftnet();
834 1.2 itojun error = in6_pcbbind(in6p, addr6);
835 1.2 itojun splx(s);
836 1.2 itojun break;
837 1.2 itojun
838 1.2 itojun case PRU_LISTEN:
839 1.2 itojun error = EOPNOTSUPP;
840 1.2 itojun break;
841 1.2 itojun
842 1.2 itojun case PRU_CONNECT:
843 1.14 itojun if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
844 1.2 itojun error = EISCONN;
845 1.2 itojun break;
846 1.2 itojun }
847 1.4 itojun s = splsoftnet();
848 1.2 itojun error = in6_pcbconnect(in6p, addr6);
849 1.2 itojun if (ip6_auto_flowlabel) {
850 1.2 itojun in6p->in6p_flowinfo &= ~IPV6_FLOWLABEL_MASK;
851 1.2 itojun in6p->in6p_flowinfo |=
852 1.2 itojun (htonl(ip6_flow_seq++) & IPV6_FLOWLABEL_MASK);
853 1.2 itojun }
854 1.2 itojun splx(s);
855 1.2 itojun if (error == 0)
856 1.2 itojun soisconnected(so);
857 1.2 itojun break;
858 1.2 itojun
859 1.2 itojun case PRU_CONNECT2:
860 1.2 itojun error = EOPNOTSUPP;
861 1.2 itojun break;
862 1.2 itojun
863 1.2 itojun case PRU_ACCEPT:
864 1.2 itojun error = EOPNOTSUPP;
865 1.2 itojun break;
866 1.2 itojun
867 1.2 itojun case PRU_DISCONNECT:
868 1.2 itojun if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
869 1.2 itojun error = ENOTCONN;
870 1.2 itojun break;
871 1.2 itojun }
872 1.4 itojun s = splsoftnet();
873 1.2 itojun in6_pcbdisconnect(in6p);
874 1.2 itojun bzero((caddr_t)&in6p->in6p_laddr, sizeof(in6p->in6p_laddr));
875 1.2 itojun splx(s);
876 1.2 itojun so->so_state &= ~SS_ISCONNECTED; /* XXX */
877 1.2 itojun break;
878 1.2 itojun
879 1.2 itojun case PRU_SHUTDOWN:
880 1.2 itojun socantsendmore(so);
881 1.2 itojun break;
882 1.2 itojun
883 1.2 itojun case PRU_SEND:
884 1.2 itojun return(udp6_output(in6p, m, addr6, control));
885 1.2 itojun
886 1.2 itojun case PRU_ABORT:
887 1.2 itojun soisdisconnected(so);
888 1.2 itojun udp6_detach(in6p);
889 1.2 itojun break;
890 1.2 itojun
891 1.2 itojun case PRU_SOCKADDR:
892 1.2 itojun in6_setsockaddr(in6p, addr6);
893 1.2 itojun break;
894 1.2 itojun
895 1.2 itojun case PRU_PEERADDR:
896 1.2 itojun in6_setpeeraddr(in6p, addr6);
897 1.2 itojun break;
898 1.2 itojun
899 1.2 itojun case PRU_SENSE:
900 1.2 itojun /*
901 1.2 itojun * stat: don't bother with a blocksize
902 1.2 itojun */
903 1.2 itojun return(0);
904 1.2 itojun
905 1.2 itojun case PRU_SENDOOB:
906 1.2 itojun case PRU_FASTTIMO:
907 1.2 itojun case PRU_SLOWTIMO:
908 1.2 itojun case PRU_PROTORCV:
909 1.2 itojun case PRU_PROTOSEND:
910 1.2 itojun error = EOPNOTSUPP;
911 1.2 itojun break;
912 1.2 itojun
913 1.2 itojun case PRU_RCVD:
914 1.2 itojun case PRU_RCVOOB:
915 1.2 itojun return(EOPNOTSUPP); /* do not free mbuf's */
916 1.2 itojun
917 1.2 itojun default:
918 1.2 itojun panic("udp6_usrreq");
919 1.2 itojun }
920 1.2 itojun
921 1.2 itojun release:
922 1.2 itojun if (control) {
923 1.2 itojun printf("udp control data unexpectedly retained\n");
924 1.2 itojun m_freem(control);
925 1.2 itojun }
926 1.2 itojun if (m)
927 1.2 itojun m_freem(m);
928 1.2 itojun return(error);
929 1.2 itojun }
930 1.2 itojun
931 1.2 itojun static void
932 1.2 itojun udp6_detach(in6p)
933 1.2 itojun struct in6pcb *in6p;
934 1.2 itojun {
935 1.4 itojun int s = splsoftnet();
936 1.2 itojun
937 1.2 itojun if (in6p == udp6_last_in6pcb)
938 1.2 itojun udp6_last_in6pcb = &udb6;
939 1.2 itojun in6_pcbdetach(in6p);
940 1.2 itojun splx(s);
941 1.2 itojun }
942 1.2 itojun
943 1.2 itojun #ifdef __bsdi__
944 1.2 itojun int *udp6_sysvars[] = UDP6CTL_VARS;
945 1.2 itojun
946 1.2 itojun int
947 1.2 itojun udp6_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
948 1.2 itojun int *name;
949 1.2 itojun u_int namelen;
950 1.2 itojun void *oldp;
951 1.2 itojun size_t *oldlenp;
952 1.2 itojun void *newp;
953 1.2 itojun size_t newlen;
954 1.2 itojun {
955 1.2 itojun if (name[0] >= UDP6CTL_MAXID)
956 1.2 itojun return (EOPNOTSUPP);
957 1.2 itojun switch (name[0]) {
958 1.2 itojun case UDP6CTL_STATS:
959 1.2 itojun return sysctl_rdtrunc(oldp, oldlenp, newp, &udp6stat,
960 1.2 itojun sizeof(udp6stat));
961 1.2 itojun
962 1.2 itojun default:
963 1.2 itojun return (sysctl_int_arr(udp6_sysvars, name, namelen,
964 1.2 itojun oldp, oldlenp, newp, newlen));
965 1.2 itojun }
966 1.2 itojun }
967 1.2 itojun #endif /*__bsdi__*/
968 1.2 itojun
969 1.2 itojun #ifdef __NetBSD__
970 1.2 itojun #include <vm/vm.h>
971 1.2 itojun #include <sys/sysctl.h>
972 1.2 itojun
973 1.2 itojun int
974 1.2 itojun udp6_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
975 1.2 itojun int *name;
976 1.2 itojun u_int namelen;
977 1.2 itojun void *oldp;
978 1.2 itojun size_t *oldlenp;
979 1.2 itojun void *newp;
980 1.2 itojun size_t newlen;
981 1.2 itojun {
982 1.2 itojun /* All sysctl names at this level are terminal. */
983 1.2 itojun if (namelen != 1)
984 1.2 itojun return ENOTDIR;
985 1.2 itojun
986 1.2 itojun switch (name[0]) {
987 1.2 itojun
988 1.2 itojun case UDP6CTL_SENDMAX:
989 1.2 itojun return sysctl_int(oldp, oldlenp, newp, newlen,
990 1.2 itojun &udp6_sendspace);
991 1.2 itojun case UDP6CTL_RECVSPACE:
992 1.2 itojun return sysctl_int(oldp, oldlenp, newp, newlen,
993 1.2 itojun &udp6_recvspace);
994 1.2 itojun default:
995 1.2 itojun return ENOPROTOOPT;
996 1.2 itojun }
997 1.2 itojun /* NOTREACHED */
998 1.2 itojun }
999 1.2 itojun #endif
1000