Annotation of src/sys/netinet/udp_usrreq.c, Revision 1.111
1.111 ! mycroft 1: /* $NetBSD: udp_usrreq.c,v 1.110 2003/09/12 09:55:22 itojun Exp $ */
1.48 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
1.94 itojun 6: *
1.48 itojun 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. Neither the name of the project nor the names of its contributors
16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
1.94 itojun 18: *
1.48 itojun 19: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
1.14 cgd 31:
1.1 cgd 32: /*
1.44 thorpej 33: * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995
1.13 mycroft 34: * The Regents of the University of California. All rights reserved.
1.1 cgd 35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
1.104 agc 44: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
1.44 thorpej 60: * @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95
1.1 cgd 61: */
1.91 lukem 62:
63: #include <sys/cdefs.h>
1.111 ! mycroft 64: __KERNEL_RCSID(0, "$NetBSD: udp_usrreq.c,v 1.110 2003/09/12 09:55:22 itojun Exp $");
1.50 thorpej 65:
1.77 soda 66: #include "opt_inet.h"
1.50 thorpej 67: #include "opt_ipsec.h"
1.78 thorpej 68: #include "opt_inet_csum.h"
1.64 ws 69: #include "opt_ipkdb.h"
1.101 martin 70: #include "opt_mbuftrace.h"
1.1 cgd 71:
1.5 mycroft 72: #include <sys/param.h>
73: #include <sys/malloc.h>
74: #include <sys/mbuf.h>
75: #include <sys/protosw.h>
76: #include <sys/socket.h>
77: #include <sys/socketvar.h>
1.13 mycroft 78: #include <sys/errno.h>
1.5 mycroft 79: #include <sys/stat.h>
1.27 christos 80: #include <sys/systm.h>
81: #include <sys/proc.h>
1.53 itojun 82: #include <sys/domain.h>
1.27 christos 83: #include <sys/sysctl.h>
1.1 cgd 84:
1.5 mycroft 85: #include <net/if.h>
86: #include <net/route.h>
1.1 cgd 87:
1.5 mycroft 88: #include <netinet/in.h>
89: #include <netinet/in_systm.h>
1.15 cgd 90: #include <netinet/in_var.h>
1.5 mycroft 91: #include <netinet/ip.h>
92: #include <netinet/in_pcb.h>
93: #include <netinet/ip_var.h>
94: #include <netinet/ip_icmp.h>
95: #include <netinet/udp.h>
96: #include <netinet/udp_var.h>
1.1 cgd 97:
1.53 itojun 98: #ifdef INET6
99: #include <netinet/ip6.h>
100: #include <netinet/icmp6.h>
101: #include <netinet6/ip6_var.h>
102: #include <netinet6/in6_pcb.h>
103: #include <netinet6/udp6_var.h>
104: #endif
105:
106: #ifndef INET6
107: /* always need ip6.h for IP6_EXTHDR_GET */
108: #include <netinet/ip6.h>
109: #endif
110:
1.76 itojun 111: #include "faith.h"
112: #if defined(NFAITH) && NFAITH > 0
113: #include <net/if_faith.h>
114: #endif
115:
1.27 christos 116: #include <machine/stdarg.h>
117:
1.105 jonathan 118: #ifdef FAST_IPSEC
119: #include <netipsec/ipsec.h>
120: #ifdef INET6
121: #include <netipsec/ipsec6.h>
122: #endif
123: #endif /* FAST_IPSEC*/
124:
1.48 itojun 125: #ifdef IPSEC
126: #include <netinet6/ipsec.h>
127: #include <netkey/key.h>
128: #endif /*IPSEC*/
129:
1.64 ws 130: #ifdef IPKDB
131: #include <ipkdb/ipkdb.h>
132: #endif
133:
1.8 mycroft 134: /*
135: * UDP protocol implementation.
136: * Per RFC 768, August, 1980.
137: */
138: #ifndef COMPAT_42
139: int udpcksum = 1;
140: #else
141: int udpcksum = 0; /* XXX */
142: #endif
1.93 matt 143:
144: struct inpcbtable udbtable;
145: struct udpstat udpstat;
1.8 mycroft 146:
1.72 itojun 147: #ifdef INET
1.53 itojun 148: static void udp4_sendup __P((struct mbuf *, int, struct sockaddr *,
149: struct socket *));
150: static int udp4_realinput __P((struct sockaddr_in *, struct sockaddr_in *,
151: struct mbuf *, int));
1.72 itojun 152: #endif
1.53 itojun 153: #ifdef INET6
154: static void udp6_sendup __P((struct mbuf *, int, struct sockaddr *,
155: struct socket *));
156: static int udp6_realinput __P((int, struct sockaddr_in6 *,
157: struct sockaddr_in6 *, struct mbuf *, int));
158: #endif
1.72 itojun 159: #ifdef INET
1.13 mycroft 160: static void udp_notify __P((struct inpcb *, int));
1.72 itojun 161: #endif
1.7 mycroft 162:
1.26 mycroft 163: #ifndef UDBHASHSIZE
164: #define UDBHASHSIZE 128
165: #endif
166: int udbhashsize = UDBHASHSIZE;
167:
1.98 matt 168: #ifdef MBUFTRACE
169: struct mowner udp_mowner = { "udp" };
170: struct mowner udp_rx_mowner = { "udp", "rx" };
171: struct mowner udp_tx_mowner = { "udp", "tx" };
172: #endif
173:
1.78 thorpej 174: #ifdef UDP_CSUM_COUNTERS
175: #include <sys/device.h>
176:
177: struct evcnt udp_hwcsum_bad = EVCNT_INITIALIZER(EVCNT_TYPE_MISC,
178: NULL, "udp", "hwcsum bad");
179: struct evcnt udp_hwcsum_ok = EVCNT_INITIALIZER(EVCNT_TYPE_MISC,
180: NULL, "udp", "hwcsum ok");
181: struct evcnt udp_hwcsum_data = EVCNT_INITIALIZER(EVCNT_TYPE_MISC,
182: NULL, "udp", "hwcsum data");
183: struct evcnt udp_swcsum = EVCNT_INITIALIZER(EVCNT_TYPE_MISC,
184: NULL, "udp", "swcsum");
185:
186: #define UDP_CSUM_COUNTER_INCR(ev) (ev)->ev_count++
187:
188: #else
189:
190: #define UDP_CSUM_COUNTER_INCR(ev) /* nothing */
191:
192: #endif /* UDP_CSUM_COUNTERS */
193:
1.7 mycroft 194: void
1.1 cgd 195: udp_init()
196: {
1.18 mycroft 197:
1.35 mycroft 198: in_pcbinit(&udbtable, udbhashsize, udbhashsize);
1.78 thorpej 199:
200: #ifdef UDP_CSUM_COUNTERS
201: evcnt_attach_static(&udp_hwcsum_bad);
202: evcnt_attach_static(&udp_hwcsum_ok);
203: evcnt_attach_static(&udp_hwcsum_data);
204: evcnt_attach_static(&udp_swcsum);
205: #endif /* UDP_CSUM_COUNTERS */
1.98 matt 206:
207: MOWNER_ATTACH(&udp_tx_mowner);
208: MOWNER_ATTACH(&udp_rx_mowner);
209: MOWNER_ATTACH(&udp_mowner);
1.1 cgd 210: }
211:
1.72 itojun 212: #ifdef INET
1.7 mycroft 213: void
1.27 christos 214: #if __STDC__
215: udp_input(struct mbuf *m, ...)
216: #else
217: udp_input(m, va_alist)
218: struct mbuf *m;
219: va_dcl
220: #endif
1.1 cgd 221: {
1.53 itojun 222: va_list ap;
223: struct sockaddr_in src, dst;
224: struct ip *ip;
225: struct udphdr *uh;
1.97 simonb 226: int iphlen;
1.53 itojun 227: int len;
228: int n;
1.96 itojun 229: u_int16_t ip_len;
1.53 itojun 230:
231: va_start(ap, m);
232: iphlen = va_arg(ap, int);
1.97 simonb 233: (void)va_arg(ap, int); /* ignore value, advance ap */
1.53 itojun 234: va_end(ap);
235:
1.98 matt 236: MCLAIM(m, &udp_rx_mowner);
1.53 itojun 237: udpstat.udps_ipackets++;
238:
239: /*
240: * Get IP and UDP header together in first mbuf.
241: */
242: ip = mtod(m, struct ip *);
243: IP6_EXTHDR_GET(uh, struct udphdr *, m, iphlen, sizeof(struct udphdr));
244: if (uh == NULL) {
245: udpstat.udps_hdrops++;
246: return;
247: }
1.95 thorpej 248: KASSERT(UDP_HDR_ALIGNED_P(uh));
1.53 itojun 249:
1.57 itojun 250: /* destination port of 0 is illegal, based on RFC768. */
251: if (uh->uh_dport == 0)
252: goto bad;
253:
1.53 itojun 254: /*
255: * Make mbuf data length reflect UDP length.
256: * If not enough data to reflect UDP length, drop.
257: */
1.96 itojun 258: ip_len = ntohs(ip->ip_len);
1.53 itojun 259: len = ntohs((u_int16_t)uh->uh_ulen);
1.96 itojun 260: if (ip_len != iphlen + len) {
261: if (ip_len < iphlen + len || len < sizeof(struct udphdr)) {
1.53 itojun 262: udpstat.udps_badlen++;
263: goto bad;
264: }
1.96 itojun 265: m_adj(m, iphlen + len - ip_len);
1.53 itojun 266: }
267:
268: /*
269: * Checksum extended UDP header and data.
270: */
271: if (uh->uh_sum) {
1.78 thorpej 272: switch (m->m_pkthdr.csum_flags &
1.84 thorpej 273: ((m->m_pkthdr.rcvif->if_csum_flags_rx & M_CSUM_UDPv4) |
1.78 thorpej 274: M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) {
275: case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD:
276: UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad);
277: goto badcsum;
278:
1.106 jonathan 279: case M_CSUM_UDPv4|M_CSUM_DATA: {
280: u_int32_t hw_csum = m->m_pkthdr.csum_data;
1.78 thorpej 281: UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data);
1.106 jonathan 282: if (m->m_pkthdr.csum_flags & M_CSUM_NO_PSEUDOHDR)
283: hw_csum = in_cksum_phdr(ip->ip_src.s_addr, ip->ip_dst.s_addr,
284: htonl(hw_csum + ntohs(ip->ip_len) + IPPROTO_UDP));
285: if ((hw_csum ^ 0xffff) != 0)
1.78 thorpej 286: goto badcsum;
287: break;
1.106 jonathan 288: }
1.78 thorpej 289:
290: case M_CSUM_UDPv4:
291: /* Checksum was okay. */
292: UDP_CSUM_COUNTER_INCR(&udp_hwcsum_ok);
293: break;
294:
295: default:
296: /* Need to compute it ourselves. */
297: UDP_CSUM_COUNTER_INCR(&udp_swcsum);
298: if (in4_cksum(m, IPPROTO_UDP, iphlen, len) != 0)
299: goto badcsum;
300: break;
1.53 itojun 301: }
302: }
303:
304: /* construct source and dst sockaddrs. */
305: bzero(&src, sizeof(src));
306: src.sin_family = AF_INET;
307: src.sin_len = sizeof(struct sockaddr_in);
308: bcopy(&ip->ip_src, &src.sin_addr, sizeof(src.sin_addr));
309: src.sin_port = uh->uh_sport;
310: bzero(&dst, sizeof(dst));
311: dst.sin_family = AF_INET;
312: dst.sin_len = sizeof(struct sockaddr_in);
313: bcopy(&ip->ip_dst, &dst.sin_addr, sizeof(dst.sin_addr));
314: dst.sin_port = uh->uh_dport;
315:
316: n = udp4_realinput(&src, &dst, m, iphlen);
317: #ifdef INET6
318: if (IN_MULTICAST(ip->ip_dst.s_addr) || n == 0) {
319: struct sockaddr_in6 src6, dst6;
320:
321: bzero(&src6, sizeof(src6));
322: src6.sin6_family = AF_INET6;
323: src6.sin6_len = sizeof(struct sockaddr_in6);
324: src6.sin6_addr.s6_addr[10] = src6.sin6_addr.s6_addr[11] = 0xff;
325: bcopy(&ip->ip_src, &src6.sin6_addr.s6_addr[12],
326: sizeof(ip->ip_src));
327: src6.sin6_port = uh->uh_sport;
328: bzero(&dst6, sizeof(dst6));
329: dst6.sin6_family = AF_INET6;
330: dst6.sin6_len = sizeof(struct sockaddr_in6);
331: dst6.sin6_addr.s6_addr[10] = dst6.sin6_addr.s6_addr[11] = 0xff;
332: bcopy(&ip->ip_dst, &dst6.sin6_addr.s6_addr[12],
333: sizeof(ip->ip_dst));
334: dst6.sin6_port = uh->uh_dport;
335:
336: n += udp6_realinput(AF_INET, &src6, &dst6, m, iphlen);
337: }
338: #endif
339:
340: if (n == 0) {
341: if (m->m_flags & (M_BCAST | M_MCAST)) {
342: udpstat.udps_noportbcast++;
343: goto bad;
344: }
1.61 itojun 345: udpstat.udps_noport++;
1.64 ws 346: #ifdef IPKDB
1.53 itojun 347: if (checkipkdb(&ip->ip_src, uh->uh_sport, uh->uh_dport,
348: m, iphlen + sizeof(struct udphdr),
349: m->m_pkthdr.len - iphlen - sizeof(struct udphdr))) {
350: /*
351: * It was a debugger connect packet,
352: * just drop it now
353: */
354: goto bad;
355: }
356: #endif
357: icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0);
358: m = NULL;
359: }
360:
361: bad:
362: if (m)
363: m_freem(m);
1.78 thorpej 364: return;
365:
366: badcsum:
367: m_freem(m);
368: udpstat.udps_badsum++;
1.53 itojun 369: }
1.72 itojun 370: #endif
1.53 itojun 371:
372: #ifdef INET6
373: int
374: udp6_input(mp, offp, proto)
375: struct mbuf **mp;
376: int *offp, proto;
377: {
378: struct mbuf *m = *mp;
379: int off = *offp;
380: struct sockaddr_in6 src, dst;
381: struct ip6_hdr *ip6;
382: struct udphdr *uh;
383: u_int32_t plen, ulen;
384:
1.76 itojun 385: ip6 = mtod(m, struct ip6_hdr *);
386:
1.53 itojun 387: #if defined(NFAITH) && 0 < NFAITH
1.76 itojun 388: if (faithprefix(&ip6->ip6_dst)) {
389: /* send icmp6 host unreach? */
390: m_freem(m);
391: return IPPROTO_DONE;
1.53 itojun 392: }
393: #endif
394:
395: udp6stat.udp6s_ipackets++;
396:
397: /* check for jumbogram is done in ip6_input. we can trust pkthdr.len */
398: plen = m->m_pkthdr.len - off;
399: IP6_EXTHDR_GET(uh, struct udphdr *, m, off, sizeof(struct udphdr));
400: if (uh == NULL) {
401: ip6stat.ip6s_tooshort++;
402: return IPPROTO_DONE;
403: }
1.95 thorpej 404: KASSERT(UDP_HDR_ALIGNED_P(uh));
1.53 itojun 405: ulen = ntohs((u_short)uh->uh_ulen);
1.69 itojun 406: /*
407: * RFC2675 section 4: jumbograms will have 0 in the UDP header field,
408: * iff payload length > 0xffff.
409: */
1.53 itojun 410: if (ulen == 0 && plen > 0xffff)
411: ulen = plen;
412:
413: if (plen != ulen) {
414: udp6stat.udp6s_badlen++;
1.54 itojun 415: goto bad;
416: }
417:
1.57 itojun 418: /* destination port of 0 is illegal, based on RFC768. */
419: if (uh->uh_dport == 0)
420: goto bad;
421:
1.54 itojun 422: /* Be proactive about malicious use of IPv4 mapped address */
423: if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) ||
424: IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) {
425: /* XXX stat */
1.53 itojun 426: goto bad;
427: }
428:
429: /*
430: * Checksum extended UDP header and data.
431: */
432: if (uh->uh_sum == 0)
433: udp6stat.udp6s_nosum++;
434: else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) {
435: udp6stat.udp6s_badsum++;
436: goto bad;
437: }
438:
439: /*
440: * Construct source and dst sockaddrs.
441: * Note that ifindex (s6_addr16[1]) is already filled.
442: */
443: bzero(&src, sizeof(src));
444: src.sin6_family = AF_INET6;
445: src.sin6_len = sizeof(struct sockaddr_in6);
1.69 itojun 446: /* KAME hack: recover scopeid */
447: (void)in6_recoverscope(&src, &ip6->ip6_src, m->m_pkthdr.rcvif);
1.53 itojun 448: src.sin6_port = uh->uh_sport;
449: bzero(&dst, sizeof(dst));
450: dst.sin6_family = AF_INET6;
451: dst.sin6_len = sizeof(struct sockaddr_in6);
1.69 itojun 452: /* KAME hack: recover scopeid */
453: (void)in6_recoverscope(&dst, &ip6->ip6_dst, m->m_pkthdr.rcvif);
1.53 itojun 454: dst.sin6_port = uh->uh_dport;
455:
456: if (udp6_realinput(AF_INET6, &src, &dst, m, off) == 0) {
457: if (m->m_flags & M_MCAST) {
458: udp6stat.udp6s_noportmcast++;
459: goto bad;
460: }
1.61 itojun 461: udp6stat.udp6s_noport++;
1.53 itojun 462: icmp6_error(m, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT, 0);
463: m = NULL;
464: }
465:
466: bad:
467: if (m)
468: m_freem(m);
469: return IPPROTO_DONE;
470: }
471: #endif
472:
1.72 itojun 473: #ifdef INET
1.53 itojun 474: static void
475: udp4_sendup(m, off, src, so)
476: struct mbuf *m;
477: int off; /* offset of data portion */
478: struct sockaddr *src;
479: struct socket *so;
480: {
481: struct mbuf *opts = NULL;
482: struct mbuf *n;
483: struct inpcb *inp = NULL;
484:
485: if (!so)
486: return;
487: switch (so->so_proto->pr_domain->dom_family) {
488: case AF_INET:
489: inp = sotoinpcb(so);
490: break;
491: #ifdef INET6
492: case AF_INET6:
493: break;
494: #endif
495: default:
496: return;
497: }
498:
1.105 jonathan 499: #if defined(IPSEC) || defined(FAST_IPSEC)
1.53 itojun 500: /* check AH/ESP integrity. */
501: if (so != NULL && ipsec4_in_reject_so(m, so)) {
502: ipsecstat.in_polvio++;
1.110 itojun 503: if ((n = m_copy(m, 0, M_COPYALL)) != NULL)
504: icmp_error(n, ICMP_UNREACH, ICMP_UNREACH_ADMIN_PROHIBIT,
505: 0, 0);
1.53 itojun 506: return;
507: }
508: #endif /*IPSEC*/
509:
510: if ((n = m_copy(m, 0, M_COPYALL)) != NULL) {
511: if (inp && (inp->inp_flags & INP_CONTROLOPTS
512: || so->so_options & SO_TIMESTAMP)) {
513: struct ip *ip = mtod(n, struct ip *);
514: ip_savecontrol(inp, &opts, ip, n);
515: }
516:
517: m_adj(n, off);
518: if (sbappendaddr(&so->so_rcv, src, n,
519: opts) == 0) {
520: m_freem(n);
521: if (opts)
522: m_freem(opts);
1.81 enami 523: udpstat.udps_fullsock++;
1.53 itojun 524: } else
525: sorwakeup(so);
526: }
527: }
1.72 itojun 528: #endif
1.53 itojun 529:
530: #ifdef INET6
531: static void
532: udp6_sendup(m, off, src, so)
533: struct mbuf *m;
534: int off; /* offset of data portion */
535: struct sockaddr *src;
536: struct socket *so;
537: {
538: struct mbuf *opts = NULL;
539: struct mbuf *n;
540: struct in6pcb *in6p = NULL;
541:
542: if (!so)
543: return;
544: if (so->so_proto->pr_domain->dom_family != AF_INET6)
545: return;
546: in6p = sotoin6pcb(so);
547:
1.105 jonathan 548: #if defined(IPSEC) || defined(FAST_IPSEC)
1.53 itojun 549: /* check AH/ESP integrity. */
550: if (so != NULL && ipsec6_in_reject_so(m, so)) {
551: ipsec6stat.in_polvio++;
1.111 ! mycroft 552: if ((n = m_copy(m, 0, M_COPYALL)) != NULL)
1.110 itojun 553: icmp6_error(n, ICMP6_DST_UNREACH,
554: ICMP6_DST_UNREACH_ADMIN, 0);
1.53 itojun 555: return;
556: }
557: #endif /*IPSEC*/
558:
559: if ((n = m_copy(m, 0, M_COPYALL)) != NULL) {
560: if (in6p && (in6p->in6p_flags & IN6P_CONTROLOPTS
561: || in6p->in6p_socket->so_options & SO_TIMESTAMP)) {
562: struct ip6_hdr *ip6 = mtod(n, struct ip6_hdr *);
563: ip6_savecontrol(in6p, &opts, ip6, n);
564: }
565:
566: m_adj(n, off);
567: if (sbappendaddr(&so->so_rcv, src, n, opts) == 0) {
568: m_freem(n);
569: if (opts)
570: m_freem(opts);
571: udp6stat.udp6s_fullsock++;
572: } else
573: sorwakeup(so);
574: }
575: }
576: #endif
577:
1.72 itojun 578: #ifdef INET
1.53 itojun 579: static int
580: udp4_realinput(src, dst, m, off)
581: struct sockaddr_in *src;
582: struct sockaddr_in *dst;
583: struct mbuf *m;
584: int off; /* offset of udphdr */
585: {
586: u_int16_t *sport, *dport;
587: int rcvcnt;
588: struct in_addr *src4, *dst4;
1.109 itojun 589: struct inpcb_hdr *inph;
1.53 itojun 590: struct inpcb *inp;
591:
592: rcvcnt = 0;
593: off += sizeof(struct udphdr); /* now, offset of payload */
594:
595: if (src->sin_family != AF_INET || dst->sin_family != AF_INET)
596: goto bad;
597:
598: src4 = &src->sin_addr;
599: sport = &src->sin_port;
600: dst4 = &dst->sin_addr;
601: dport = &dst->sin_port;
602:
1.73 itojun 603: if (IN_MULTICAST(dst4->s_addr) ||
1.53 itojun 604: in_broadcast(*dst4, m->m_pkthdr.rcvif)) {
605: /*
606: * Deliver a multicast or broadcast datagram to *all* sockets
607: * for which the local and remote addresses and ports match
608: * those of the incoming datagram. This allows more than
609: * one process to receive multi/broadcasts on the same port.
610: * (This really ought to be done for unicast datagrams as
611: * well, but that would cause problems with existing
612: * applications that open both address-specific sockets and
613: * a wildcard socket listening to the same port -- they would
614: * end up receiving duplicates of every unicast datagram.
615: * Those applications open the multiple sockets to overcome an
616: * inadequacy of the UDP socket interface, but for backwards
617: * compatibility we avoid the problem here rather than
618: * fixing the interface. Maybe 4.5BSD will remedy this?)
619: */
620:
621: /*
1.92 itojun 622: * KAME note: traditionally we dropped udpiphdr from mbuf here.
1.71 itojun 623: * we need udpiphdr for IPsec processing so we do that later.
1.53 itojun 624: */
625: /*
626: * Locate pcb(s) for datagram.
627: */
1.109 itojun 628: CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) {
629: inp = (struct inpcb *)inph;
630: if (inp->inp_af != AF_INET)
631: continue;
632:
1.53 itojun 633: if (inp->inp_lport != *dport)
634: continue;
635: if (!in_nullhost(inp->inp_laddr)) {
636: if (!in_hosteq(inp->inp_laddr, *dst4))
637: continue;
638: }
639: if (!in_nullhost(inp->inp_faddr)) {
640: if (!in_hosteq(inp->inp_faddr, *src4) ||
641: inp->inp_fport != *sport)
642: continue;
643: }
644:
645: udp4_sendup(m, off, (struct sockaddr *)src,
646: inp->inp_socket);
647: rcvcnt++;
648:
649: /*
650: * Don't look for additional matches if this one does
651: * not have either the SO_REUSEPORT or SO_REUSEADDR
652: * socket options set. This heuristic avoids searching
653: * through all pcbs in the common case of a non-shared
654: * port. It assumes that an application will never
655: * clear these options after setting them.
656: */
657: if ((inp->inp_socket->so_options &
658: (SO_REUSEPORT|SO_REUSEADDR)) == 0)
659: break;
660: }
661: } else {
662: /*
663: * Locate pcb for datagram.
664: */
665: inp = in_pcblookup_connect(&udbtable, *src4, *sport, *dst4, *dport);
666: if (inp == 0) {
667: ++udpstat.udps_pcbhashmiss;
668: inp = in_pcblookup_bind(&udbtable, *dst4, *dport);
1.82 itojun 669: if (inp == 0)
1.53 itojun 670: return rcvcnt;
671: }
672:
673: udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket);
674: rcvcnt++;
675: }
676:
677: bad:
678: return rcvcnt;
679: }
1.72 itojun 680: #endif
1.53 itojun 681:
682: #ifdef INET6
683: static int
684: udp6_realinput(af, src, dst, m, off)
685: int af; /* af on packet */
686: struct sockaddr_in6 *src;
687: struct sockaddr_in6 *dst;
688: struct mbuf *m;
689: int off; /* offset of udphdr */
690: {
1.79 itojun 691: u_int16_t sport, dport;
1.53 itojun 692: int rcvcnt;
1.79 itojun 693: struct in6_addr src6, dst6;
694: const struct in_addr *dst4;
1.109 itojun 695: struct inpcb_hdr *inph;
1.53 itojun 696: struct in6pcb *in6p;
697:
698: rcvcnt = 0;
699: off += sizeof(struct udphdr); /* now, offset of payload */
700:
701: if (af != AF_INET && af != AF_INET6)
702: goto bad;
703: if (src->sin6_family != AF_INET6 || dst->sin6_family != AF_INET6)
704: goto bad;
705:
1.79 itojun 706: in6_embedscope(&src6, src, NULL, NULL);
707: sport = src->sin6_port;
708: in6_embedscope(&dst6, dst, NULL, NULL);
709: dport = dst->sin6_port;
1.88 itojun 710: dst4 = (struct in_addr *)&dst->sin6_addr.s6_addr[12];
1.53 itojun 711:
1.79 itojun 712: if (IN6_IS_ADDR_MULTICAST(&dst6) ||
713: (af == AF_INET && IN_MULTICAST(dst4->s_addr))) {
1.53 itojun 714: /*
715: * Deliver a multicast or broadcast datagram to *all* sockets
716: * for which the local and remote addresses and ports match
717: * those of the incoming datagram. This allows more than
718: * one process to receive multi/broadcasts on the same port.
719: * (This really ought to be done for unicast datagrams as
720: * well, but that would cause problems with existing
721: * applications that open both address-specific sockets and
722: * a wildcard socket listening to the same port -- they would
723: * end up receiving duplicates of every unicast datagram.
724: * Those applications open the multiple sockets to overcome an
725: * inadequacy of the UDP socket interface, but for backwards
726: * compatibility we avoid the problem here rather than
727: * fixing the interface. Maybe 4.5BSD will remedy this?)
728: */
729:
730: /*
1.92 itojun 731: * KAME note: traditionally we dropped udpiphdr from mbuf here.
1.71 itojun 732: * we need udpiphdr for IPsec processing so we do that later.
1.53 itojun 733: */
734: /*
735: * Locate pcb(s) for datagram.
736: */
1.109 itojun 737: CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) {
738: in6p = (struct in6pcb *)inph;
739: if (in6p->in6p_af != AF_INET6)
740: continue;
741:
1.79 itojun 742: if (in6p->in6p_lport != dport)
1.53 itojun 743: continue;
744: if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) {
1.90 itojun 745: if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &dst6))
1.53 itojun 746: continue;
1.92 itojun 747: } else {
1.79 itojun 748: if (IN6_IS_ADDR_V4MAPPED(&dst6) &&
1.85 itojun 749: (in6p->in6p_flags & IN6P_IPV6_V6ONLY))
1.55 itojun 750: continue;
751: }
1.53 itojun 752: if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) {
1.79 itojun 753: if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr,
754: &src6) || in6p->in6p_fport != sport)
1.53 itojun 755: continue;
1.92 itojun 756: } else {
1.79 itojun 757: if (IN6_IS_ADDR_V4MAPPED(&src6) &&
1.85 itojun 758: (in6p->in6p_flags & IN6P_IPV6_V6ONLY))
1.55 itojun 759: continue;
760: }
1.53 itojun 761:
762: udp6_sendup(m, off, (struct sockaddr *)src,
763: in6p->in6p_socket);
764: rcvcnt++;
765:
766: /*
767: * Don't look for additional matches if this one does
768: * not have either the SO_REUSEPORT or SO_REUSEADDR
769: * socket options set. This heuristic avoids searching
770: * through all pcbs in the common case of a non-shared
771: * port. It assumes that an application will never
772: * clear these options after setting them.
773: */
774: if ((in6p->in6p_socket->so_options &
775: (SO_REUSEPORT|SO_REUSEADDR)) == 0)
776: break;
777: }
778: } else {
779: /*
780: * Locate pcb for datagram.
781: */
1.109 itojun 782: in6p = in6_pcblookup_connect(&udbtable, &src6, sport,
1.79 itojun 783: &dst6, dport, 0);
1.53 itojun 784: if (in6p == 0) {
785: ++udpstat.udps_pcbhashmiss;
1.109 itojun 786: in6p = in6_pcblookup_bind(&udbtable, &dst6, dport, 0);
1.82 itojun 787: if (in6p == 0)
1.53 itojun 788: return rcvcnt;
789: }
790:
791: udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket);
792: rcvcnt++;
793: }
794:
795: bad:
796: return rcvcnt;
797: }
798: #endif
1.1 cgd 799:
1.72 itojun 800: #ifdef INET
1.1 cgd 801: /*
802: * Notify a udp user of an asynchronous error;
803: * just wake up so that he can collect error status.
804: */
1.7 mycroft 805: static void
1.1 cgd 806: udp_notify(inp, errno)
1.66 augustss 807: struct inpcb *inp;
1.7 mycroft 808: int errno;
1.1 cgd 809: {
1.34 mycroft 810:
1.1 cgd 811: inp->inp_socket->so_error = errno;
812: sorwakeup(inp->inp_socket);
813: sowwakeup(inp->inp_socket);
814: }
815:
1.27 christos 816: void *
817: udp_ctlinput(cmd, sa, v)
1.1 cgd 818: int cmd;
819: struct sockaddr *sa;
1.27 christos 820: void *v;
1.1 cgd 821: {
1.66 augustss 822: struct ip *ip = v;
823: struct udphdr *uh;
1.18 mycroft 824: void (*notify) __P((struct inpcb *, int)) = udp_notify;
1.21 mycroft 825: int errno;
1.1 cgd 826:
1.53 itojun 827: if (sa->sa_family != AF_INET
828: || sa->sa_len != sizeof(struct sockaddr_in))
1.51 itojun 829: return NULL;
1.20 mycroft 830: if ((unsigned)cmd >= PRC_NCMDS)
1.27 christos 831: return NULL;
1.20 mycroft 832: errno = inetctlerrmap[cmd];
1.18 mycroft 833: if (PRC_IS_REDIRECT(cmd))
1.19 mycroft 834: notify = in_rtchange, ip = 0;
1.18 mycroft 835: else if (cmd == PRC_HOSTDEAD)
1.19 mycroft 836: ip = 0;
1.23 cgd 837: else if (errno == 0)
1.27 christos 838: return NULL;
1.19 mycroft 839: if (ip) {
1.1 cgd 840: uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2));
1.34 mycroft 841: in_pcbnotify(&udbtable, satosin(sa)->sin_addr, uh->uh_dport,
842: ip->ip_src, uh->uh_sport, errno, notify);
1.53 itojun 843:
844: /* XXX mapped address case */
1.19 mycroft 845: } else
1.34 mycroft 846: in_pcbnotifyall(&udbtable, satosin(sa)->sin_addr, errno,
847: notify);
1.27 christos 848: return NULL;
1.1 cgd 849: }
850:
1.7 mycroft 851: int
1.27 christos 852: #if __STDC__
853: udp_output(struct mbuf *m, ...)
854: #else
855: udp_output(m, va_alist)
856: struct mbuf *m;
857: va_dcl
858: #endif
859: {
1.66 augustss 860: struct inpcb *inp;
861: struct udpiphdr *ui;
862: int len = m->m_pkthdr.len;
1.31 mycroft 863: int error = 0;
1.27 christos 864: va_list ap;
865:
1.98 matt 866: MCLAIM(m, &udp_tx_mowner);
1.27 christos 867: va_start(ap, m);
868: inp = va_arg(ap, struct inpcb *);
869: va_end(ap);
1.1 cgd 870:
871: /*
872: * Calculate data length and get a mbuf
873: * for UDP and IP headers.
874: */
1.13 mycroft 875: M_PREPEND(m, sizeof(struct udpiphdr), M_DONTWAIT);
876: if (m == 0) {
877: error = ENOBUFS;
1.39 thorpej 878: goto release;
879: }
880:
881: /*
882: * Compute the packet length of the IP header, and
883: * punt if the length looks bogus.
884: */
1.96 itojun 885: if (len + sizeof(struct udpiphdr) > IP_MAXPACKET) {
1.39 thorpej 886: error = EMSGSIZE;
1.13 mycroft 887: goto release;
888: }
1.1 cgd 889:
890: /*
891: * Fill in mbuf with extended UDP header
892: * and addresses and length put into network format.
893: */
894: ui = mtod(m, struct udpiphdr *);
895: ui->ui_pr = IPPROTO_UDP;
896: ui->ui_src = inp->inp_laddr;
897: ui->ui_dst = inp->inp_faddr;
898: ui->ui_sport = inp->inp_lport;
899: ui->ui_dport = inp->inp_fport;
1.78 thorpej 900: ui->ui_ulen = htons((u_int16_t)len + sizeof(struct udphdr));
1.1 cgd 901:
902: /*
1.78 thorpej 903: * Set up checksum and output datagram.
1.1 cgd 904: */
905: if (udpcksum) {
1.78 thorpej 906: /*
907: * XXX Cache pseudo-header checksum part for
908: * XXX "connected" UDP sockets.
909: */
910: ui->ui_sum = in_cksum_phdr(ui->ui_src.s_addr,
911: ui->ui_dst.s_addr, htons((u_int16_t)len +
912: sizeof(struct udphdr) + IPPROTO_UDP));
913: m->m_pkthdr.csum_flags = M_CSUM_UDPv4;
914: m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);
915: } else
916: ui->ui_sum = 0;
1.96 itojun 917: ((struct ip *)ui)->ip_len = htons(sizeof (struct udpiphdr) + len);
1.1 cgd 918: ((struct ip *)ui)->ip_ttl = inp->inp_ip.ip_ttl; /* XXX */
919: ((struct ip *)ui)->ip_tos = inp->inp_ip.ip_tos; /* XXX */
920: udpstat.udps_opackets++;
1.48 itojun 921:
1.31 mycroft 922: return (ip_output(m, inp->inp_options, &inp->inp_route,
1.12 mycroft 923: inp->inp_socket->so_options & (SO_DONTROUTE | SO_BROADCAST),
1.107 itojun 924: inp->inp_moptions, inp->inp_socket));
1.1 cgd 925:
926: release:
927: m_freem(m);
928: return (error);
929: }
930:
1.42 thorpej 931: int udp_sendspace = 9216; /* really max datagram size */
932: int udp_recvspace = 40 * (1024 + sizeof(struct sockaddr_in));
1.1 cgd 933: /* 40 1K datagrams */
934:
935: /*ARGSUSED*/
1.7 mycroft 936: int
1.103 fvdl 937: udp_usrreq(so, req, m, nam, control, p)
1.1 cgd 938: struct socket *so;
939: int req;
1.31 mycroft 940: struct mbuf *m, *nam, *control;
1.103 fvdl 941: struct proc *p;
1.1 cgd 942: {
1.66 augustss 943: struct inpcb *inp;
1.1 cgd 944: int s;
1.66 augustss 945: int error = 0;
1.1 cgd 946:
947: if (req == PRU_CONTROL)
1.31 mycroft 948: return (in_control(so, (long)m, (caddr_t)nam,
1.30 mycroft 949: (struct ifnet *)control, p));
1.59 thorpej 950:
1.60 thorpej 951: if (req == PRU_PURGEIF) {
1.80 itojun 952: in_pcbpurgeif0(&udbtable, (struct ifnet *)control);
1.60 thorpej 953: in_purgeif((struct ifnet *)control);
954: in_pcbpurgeif(&udbtable, (struct ifnet *)control);
1.59 thorpej 955: return (0);
956: }
1.31 mycroft 957:
958: s = splsoftnet();
959: inp = sotoinpcb(so);
1.32 mycroft 960: #ifdef DIAGNOSTIC
961: if (req != PRU_SEND && req != PRU_SENDOOB && control)
962: panic("udp_usrreq: unexpected control mbuf");
963: #endif
1.31 mycroft 964: if (inp == 0 && req != PRU_ATTACH) {
965: error = EINVAL;
966: goto release;
967: }
968:
1.1 cgd 969: /*
970: * Note: need to block udp_input while changing
971: * the udp pcb queue and/or pcb addresses.
972: */
973: switch (req) {
974:
975: case PRU_ATTACH:
1.31 mycroft 976: if (inp != 0) {
977: error = EISCONN;
1.1 cgd 978: break;
979: }
1.98 matt 980: #ifdef MBUFTRACE
981: so->so_mowner = &udp_mowner;
982: so->so_rcv.sb_mowner = &udp_rx_mowner;
983: so->so_snd.sb_mowner = &udp_tx_mowner;
984: #endif
1.31 mycroft 985: if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
986: error = soreserve(so, udp_sendspace, udp_recvspace);
987: if (error)
988: break;
989: }
1.18 mycroft 990: error = in_pcballoc(so, &udbtable);
1.1 cgd 991: if (error)
992: break;
1.31 mycroft 993: inp = sotoinpcb(so);
994: inp->inp_ip.ip_ttl = ip_defttl;
1.1 cgd 995: break;
996:
997: case PRU_DETACH:
1.31 mycroft 998: in_pcbdetach(inp);
1.1 cgd 999: break;
1000:
1001: case PRU_BIND:
1.31 mycroft 1002: error = in_pcbbind(inp, nam, p);
1.1 cgd 1003: break;
1004:
1005: case PRU_LISTEN:
1006: error = EOPNOTSUPP;
1007: break;
1008:
1009: case PRU_CONNECT:
1.31 mycroft 1010: error = in_pcbconnect(inp, nam);
1011: if (error)
1.1 cgd 1012: break;
1.31 mycroft 1013: soisconnected(so);
1.1 cgd 1014: break;
1015:
1016: case PRU_CONNECT2:
1017: error = EOPNOTSUPP;
1018: break;
1019:
1020: case PRU_DISCONNECT:
1.31 mycroft 1021: /*soisdisconnected(so);*/
1022: so->so_state &= ~SS_ISCONNECTED; /* XXX */
1.1 cgd 1023: in_pcbdisconnect(inp);
1.34 mycroft 1024: inp->inp_laddr = zeroin_addr; /* XXX */
1.100 matt 1025: if (inp->inp_ia != NULL) {
1026: LIST_REMOVE(inp, inp_ialink);
1027: IFAFREE(&inp->inp_ia->ia_ifa);
1028: inp->inp_ia = NULL;
1029: }
1.35 mycroft 1030: in_pcbstate(inp, INP_BOUND); /* XXX */
1.1 cgd 1031: break;
1032:
1033: case PRU_SHUTDOWN:
1034: socantsendmore(so);
1035: break;
1036:
1.31 mycroft 1037: case PRU_RCVD:
1038: error = EOPNOTSUPP;
1.1 cgd 1039: break;
1040:
1.31 mycroft 1041: case PRU_SEND:
1.32 mycroft 1042: if (control && control->m_len) {
1043: m_freem(control);
1044: m_freem(m);
1045: error = EINVAL;
1046: break;
1047: }
1.31 mycroft 1048: {
1.35 mycroft 1049: struct in_addr laddr; /* XXX */
1.1 cgd 1050:
1.31 mycroft 1051: if (nam) {
1.35 mycroft 1052: laddr = inp->inp_laddr; /* XXX */
1.31 mycroft 1053: if ((so->so_state & SS_ISCONNECTED) != 0) {
1054: error = EISCONN;
1.32 mycroft 1055: goto die;
1.31 mycroft 1056: }
1057: error = in_pcbconnect(inp, nam);
1.100 matt 1058: if (error)
1059: goto die;
1.31 mycroft 1060: } else {
1061: if ((so->so_state & SS_ISCONNECTED) == 0) {
1062: error = ENOTCONN;
1.32 mycroft 1063: goto die;
1.31 mycroft 1064: }
1065: }
1.33 mycroft 1066: error = udp_output(m, inp);
1.100 matt 1067: m = NULL;
1.31 mycroft 1068: if (nam) {
1069: in_pcbdisconnect(inp);
1.35 mycroft 1070: inp->inp_laddr = laddr; /* XXX */
1071: in_pcbstate(inp, INP_BOUND); /* XXX */
1.31 mycroft 1072: }
1.100 matt 1073: die:
1074: if (inp->inp_ia != NULL && in_nullhost(inp->inp_laddr)) {
1075: LIST_REMOVE(inp, inp_ialink);
1076: IFAFREE(&inp->inp_ia->ia_ifa);
1077: inp->inp_ia = NULL;
1078: }
1079: if (m)
1080: m_freem(m);
1.31 mycroft 1081: }
1.1 cgd 1082: break;
1083:
1084: case PRU_SENSE:
1085: /*
1086: * stat: don't bother with a blocksize.
1087: */
1.31 mycroft 1088: splx(s);
1.1 cgd 1089: return (0);
1090:
1.31 mycroft 1091: case PRU_RCVOOB:
1092: error = EOPNOTSUPP;
1093: break;
1094:
1.1 cgd 1095: case PRU_SENDOOB:
1.32 mycroft 1096: m_freem(control);
1.31 mycroft 1097: m_freem(m);
1.1 cgd 1098: error = EOPNOTSUPP;
1099: break;
1100:
1.31 mycroft 1101: case PRU_SOCKADDR:
1102: in_setsockaddr(inp, nam);
1103: break;
1104:
1105: case PRU_PEERADDR:
1106: in_setpeeraddr(inp, nam);
1107: break;
1.1 cgd 1108:
1109: default:
1110: panic("udp_usrreq");
1111: }
1112:
1113: release:
1.31 mycroft 1114: splx(s);
1.1 cgd 1115: return (error);
1.13 mycroft 1116: }
1117:
1118: /*
1119: * Sysctl for udp variables.
1120: */
1.27 christos 1121: int
1.13 mycroft 1122: udp_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
1123: int *name;
1124: u_int namelen;
1125: void *oldp;
1126: size_t *oldlenp;
1127: void *newp;
1128: size_t newlen;
1129: {
1130: /* All sysctl names at this level are terminal. */
1131: if (namelen != 1)
1132: return (ENOTDIR);
1133:
1134: switch (name[0]) {
1135: case UDPCTL_CHECKSUM:
1136: return (sysctl_int(oldp, oldlenp, newp, newlen, &udpcksum));
1.42 thorpej 1137: case UDPCTL_SENDSPACE:
1138: return (sysctl_int(oldp, oldlenp, newp, newlen,
1139: &udp_sendspace));
1140: case UDPCTL_RECVSPACE:
1.94 itojun 1141: return (sysctl_int(oldp, oldlenp, newp, newlen,
1.42 thorpej 1142: &udp_recvspace));
1.13 mycroft 1143: default:
1144: return (ENOPROTOOPT);
1145: }
1146: /* NOTREACHED */
1.1 cgd 1147: }
1.72 itojun 1148: #endif
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