?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Avoid infinite loop around timed condition variable
[qemu/mini2440.git] / slirp / udp.c
blob8d3bdd2ceb3e97959de5c20408ecf4c055dd91bc
1 /*
2 * Copyright (c) 1982, 1986, 1988, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)udp_usrreq.c 8.4 (Berkeley) 1/21/94
30 * udp_usrreq.c,v 1.4 1994/10/02 17:48:45 phk Exp
31 */
32
33 /*
34 * Changes and additions relating to SLiRP
35 * Copyright (c) 1995 Danny Gasparovski.
36 *
37 * Please read the file COPYRIGHT for the
38 * terms and conditions of the copyright.
39 */
40
41 #include <slirp.h>
42 #include "ip_icmp.h"
43
44 #ifdef LOG_ENABLED
45 struct udpstat udpstat;
46 #endif
47
48 struct socket udb;
49
50 static u_int8_t udp_tos(struct socket *so);
51 static void udp_emu(struct socket *so, struct mbuf *m);
52
53 /*
54 * UDP protocol implementation.
55 * Per RFC 768, August, 1980.
56 */
57 #ifndef COMPAT_42
58 #define UDPCKSUM 1
59 #else
60 #define UDPCKSUM 0 /* XXX */
61 #endif
62
63 struct socket *udp_last_so = &udb;
64
65 void
66 udp_init()
67 {
68 udb.so_next = udb.so_prev = &udb;
69 }
70 /* m->m_data points at ip packet header
71 * m->m_len length ip packet
72 * ip->ip_len length data (IPDU)
73 */
74 void
75 udp_input(m, iphlen)
76 register struct mbuf *m;
77 int iphlen;
78 {
79 register struct ip *ip;
80 register struct udphdr *uh;
81 /* struct mbuf *opts = 0;*/
82 int len;
83 struct ip save_ip;
84 struct socket *so;
85
86 DEBUG_CALL("udp_input");
87 DEBUG_ARG("m = %lx", (long)m);
88 DEBUG_ARG("iphlen = %d", iphlen);
89
90 STAT(udpstat.udps_ipackets++);
91
92 /*
93 * Strip IP options, if any; should skip this,
94 * make available to user, and use on returned packets,
95 * but we don't yet have a way to check the checksum
96 * with options still present.
97 */
98 if(iphlen > sizeof(struct ip)) {
99 ip_stripoptions(m, (struct mbuf *)0);
100 iphlen = sizeof(struct ip);
101 }
102
103 /*
104 * Get IP and UDP header together in first mbuf.
105 */
106 ip = mtod(m, struct ip *);
107 uh = (struct udphdr *)((caddr_t)ip + iphlen);
108
109 /*
110 * Make mbuf data length reflect UDP length.
111 * If not enough data to reflect UDP length, drop.
112 */
113 len = ntohs((u_int16_t)uh->uh_ulen);
114
115 if (ip->ip_len != len) {
116 if (len > ip->ip_len) {
117 STAT(udpstat.udps_badlen++);
118 goto bad;
119 }
120 m_adj(m, len - ip->ip_len);
121 ip->ip_len = len;
122 }
123
124 /*
125 * Save a copy of the IP header in case we want restore it
126 * for sending an ICMP error message in response.
127 */
128 save_ip = *ip;
129 save_ip.ip_len+= iphlen; /* tcp_input subtracts this */
130
131 /*
132 * Checksum extended UDP header and data.
133 */
134 if (UDPCKSUM && uh->uh_sum) {
135 memset(&((struct ipovly *)ip)->ih_mbuf, 0, sizeof(struct mbuf_ptr));
136 ((struct ipovly *)ip)->ih_x1 = 0;
137 ((struct ipovly *)ip)->ih_len = uh->uh_ulen;
138 /* keep uh_sum for ICMP reply
139 * uh->uh_sum = cksum(m, len + sizeof (struct ip));
140 * if (uh->uh_sum) {
141 */
142 if(cksum(m, len + sizeof(struct ip))) {
143 STAT(udpstat.udps_badsum++);
144 goto bad;
145 }
146 }
147
148 /*
149 * handle DHCP/BOOTP
150 */
151 if (ntohs(uh->uh_dport) == BOOTP_SERVER) {
152 bootp_input(m);
153 goto bad;
154 }
155
156 if (slirp_restrict)
157 goto bad;
158
159 /*
160 * handle TFTP
161 */
162 if (ntohs(uh->uh_dport) == TFTP_SERVER) {
163 tftp_input(m);
164 goto bad;
165 }
166
167 /*
168 * Locate pcb for datagram.
169 */
170 so = udp_last_so;
171 if (so->so_lport != uh->uh_sport ||
172 so->so_laddr.s_addr != ip->ip_src.s_addr) {
173 struct socket *tmp;
174
175 for (tmp = udb.so_next; tmp != &udb; tmp = tmp->so_next) {
176 if (tmp->so_lport == uh->uh_sport &&
177 tmp->so_laddr.s_addr == ip->ip_src.s_addr) {
178 tmp->so_faddr.s_addr = ip->ip_dst.s_addr;
179 tmp->so_fport = uh->uh_dport;
180 so = tmp;
181 break;
182 }
183 }
184 if (tmp == &udb) {
185 so = NULL;
186 } else {
187 STAT(udpstat.udpps_pcbcachemiss++);
188 udp_last_so = so;
189 }
190 }
191
192 if (so == NULL) {
193 /*
194 * If there's no socket for this packet,
195 * create one
196 */
197 if ((so = socreate()) == NULL) goto bad;
198 if(udp_attach(so) == -1) {
199 DEBUG_MISC((dfd," udp_attach errno = %d-%s\n",
200 errno,strerror(errno)));
201 sofree(so);
202 goto bad;
203 }
204
205 /*
206 * Setup fields
207 */
208 /* udp_last_so = so; */
209 so->so_laddr = ip->ip_src;
210 so->so_lport = uh->uh_sport;
211
212 if ((so->so_iptos = udp_tos(so)) == 0)
213 so->so_iptos = ip->ip_tos;
214
215 /*
216 * XXXXX Here, check if it's in udpexec_list,
217 * and if it is, do the fork_exec() etc.
218 */
219 }
220
221 so->so_faddr = ip->ip_dst; /* XXX */
222 so->so_fport = uh->uh_dport; /* XXX */
223
224 iphlen += sizeof(struct udphdr);
225 m->m_len -= iphlen;
226 m->m_data += iphlen;
227
228 /*
229 * Now we sendto() the packet.
230 */
231 if (so->so_emu)
232 udp_emu(so, m);
233
234 if(sosendto(so,m) == -1) {
235 m->m_len += iphlen;
236 m->m_data -= iphlen;
237 *ip=save_ip;
238 DEBUG_MISC((dfd,"udp tx errno = %d-%s\n",errno,strerror(errno)));
239 icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno));
240 }
241
242 m_free(so->so_m); /* used for ICMP if error on sorecvfrom */
243
244 /* restore the orig mbuf packet */
245 m->m_len += iphlen;
246 m->m_data -= iphlen;
247 *ip=save_ip;
248 so->so_m=m; /* ICMP backup */
249
250 return;
251 bad:
252 m_freem(m);
253 /* if (opts) m_freem(opts); */
254 return;
255 }
256
257 int udp_output2(struct socket *so, struct mbuf *m,
258 struct sockaddr_in *saddr, struct sockaddr_in *daddr,
259 int iptos)
260 {
261 register struct udpiphdr *ui;
262 int error = 0;
263
264 DEBUG_CALL("udp_output");
265 DEBUG_ARG("so = %lx", (long)so);
266 DEBUG_ARG("m = %lx", (long)m);
267 DEBUG_ARG("saddr = %lx", (long)saddr->sin_addr.s_addr);
268 DEBUG_ARG("daddr = %lx", (long)daddr->sin_addr.s_addr);
269
270 /*
271 * Adjust for header
272 */
273 m->m_data -= sizeof(struct udpiphdr);
274 m->m_len += sizeof(struct udpiphdr);
275
276 /*
277 * Fill in mbuf with extended UDP header
278 * and addresses and length put into network format.
279 */
280 ui = mtod(m, struct udpiphdr *);
281 memset(&ui->ui_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr));
282 ui->ui_x1 = 0;
283 ui->ui_pr = IPPROTO_UDP;
284 ui->ui_len = htons(m->m_len - sizeof(struct ip)); /* + sizeof (struct udphdr)); */
285 /* XXXXX Check for from-one-location sockets, or from-any-location sockets */
286 ui->ui_src = saddr->sin_addr;
287 ui->ui_dst = daddr->sin_addr;
288 ui->ui_sport = saddr->sin_port;
289 ui->ui_dport = daddr->sin_port;
290 ui->ui_ulen = ui->ui_len;
291
292 /*
293 * Stuff checksum and output datagram.
294 */
295 ui->ui_sum = 0;
296 if (UDPCKSUM) {
297 if ((ui->ui_sum = cksum(m, /* sizeof (struct udpiphdr) + */ m->m_len)) == 0)
298 ui->ui_sum = 0xffff;
299 }
300 ((struct ip *)ui)->ip_len = m->m_len;
301
302 ((struct ip *)ui)->ip_ttl = IPDEFTTL;
303 ((struct ip *)ui)->ip_tos = iptos;
304
305 STAT(udpstat.udps_opackets++);
306
307 error = ip_output(so, m);
308
309 return (error);
310 }
311
312 int udp_output(struct socket *so, struct mbuf *m,
313 struct sockaddr_in *addr)
314
315 {
316 struct sockaddr_in saddr, daddr;
317
318 saddr = *addr;
319 if ((so->so_faddr.s_addr & htonl(0xffffff00)) == special_addr.s_addr) {
320 if ((so->so_faddr.s_addr & htonl(0x000000ff)) == htonl(0xff))
321 saddr.sin_addr.s_addr = alias_addr.s_addr;
322 else if (addr->sin_addr.s_addr == loopback_addr.s_addr ||
323 (ntohl(so->so_faddr.s_addr) & 0xff) != CTL_ALIAS)
324 saddr.sin_addr.s_addr = so->so_faddr.s_addr;
325 }
326 daddr.sin_addr = so->so_laddr;
327 daddr.sin_port = so->so_lport;
328
329 return udp_output2(so, m, &saddr, &daddr, so->so_iptos);
330 }
331
332 int
333 udp_attach(so)
334 struct socket *so;
335 {
336 struct sockaddr_in addr;
337
338 if((so->s = socket(AF_INET,SOCK_DGRAM,0)) != -1) {
339 /*
340 * Here, we bind() the socket. Although not really needed
341 * (sendto() on an unbound socket will bind it), it's done
342 * here so that emulation of ytalk etc. don't have to do it
343 */
344 addr.sin_family = AF_INET;
345 addr.sin_port = 0;
346 addr.sin_addr.s_addr = INADDR_ANY;
347 if(bind(so->s, (struct sockaddr *)&addr, sizeof(addr))<0) {
348 int lasterrno=errno;
349 closesocket(so->s);
350 so->s=-1;
351 #ifdef _WIN32
352 WSASetLastError(lasterrno);
353 #else
354 errno=lasterrno;
355 #endif
356 } else {
357 /* success, insert in queue */
358 so->so_expire = curtime + SO_EXPIRE;
359 insque(so,&udb);
360 }
361 }
362 return(so->s);
363 }
364
365 void
366 udp_detach(so)
367 struct socket *so;
368 {
369 closesocket(so->s);
370 /* if (so->so_m) m_free(so->so_m); done by sofree */
371
372 sofree(so);
373 }
374
375 static const struct tos_t udptos[] = {
376 {0, 53, IPTOS_LOWDELAY, 0}, /* DNS */
377 {517, 517, IPTOS_LOWDELAY, EMU_TALK}, /* talk */
378 {518, 518, IPTOS_LOWDELAY, EMU_NTALK}, /* ntalk */
379 {0, 7648, IPTOS_LOWDELAY, EMU_CUSEEME}, /* Cu-Seeme */
380 {0, 0, 0, 0}
381 };
382
383 static u_int8_t
384 udp_tos(struct socket *so)
385 {
386 int i = 0;
387
388 while(udptos[i].tos) {
389 if ((udptos[i].fport && ntohs(so->so_fport) == udptos[i].fport) ||
390 (udptos[i].lport && ntohs(so->so_lport) == udptos[i].lport)) {
391 so->so_emu = udptos[i].emu;
392 return udptos[i].tos;
393 }
394 i++;
395 }
396
397 return 0;
398 }
399
400 #ifdef EMULATE_TALK
401 #include "talkd.h"
402 #endif
403
404 /*
405 * Here, talk/ytalk/ntalk requests must be emulated
406 */
407 static void
408 udp_emu(struct socket *so, struct mbuf *m)
409 {
410 struct sockaddr_in addr;
411 socklen_t addrlen = sizeof(addr);
412 #ifdef EMULATE_TALK
413 CTL_MSG_OLD *omsg;
414 CTL_MSG *nmsg;
415 char buff[sizeof(CTL_MSG)];
416 u_char type;
417
418 struct talk_request {
419 struct talk_request *next;
420 struct socket *udp_so;
421 struct socket *tcp_so;
422 } *req;
423
424 static struct talk_request *req_tbl = 0;
425
426 #endif
427
428 struct cu_header {
429 uint16_t d_family; // destination family
430 uint16_t d_port; // destination port
431 uint32_t d_addr; // destination address
432 uint16_t s_family; // source family
433 uint16_t s_port; // source port
434 uint32_t so_addr; // source address
435 uint32_t seqn; // sequence number
436 uint16_t message; // message
437 uint16_t data_type; // data type
438 uint16_t pkt_len; // packet length
439 } *cu_head;
440
441 switch(so->so_emu) {
442
443 #ifdef EMULATE_TALK
444 case EMU_TALK:
445 case EMU_NTALK:
446 /*
447 * Talk emulation. We always change the ctl_addr to get
448 * some answers from the daemon. When an ANNOUNCE comes,
449 * we send LEAVE_INVITE to the local daemons. Also when a
450 * DELETE comes, we send copies to the local daemons.
451 */
452 if (getsockname(so->s, (struct sockaddr *)&addr, &addrlen) < 0)
453 return;
454
455 #define IS_OLD (so->so_emu == EMU_TALK)
456
457 #define COPY_MSG(dest, src) { dest->type = src->type; \
458 dest->id_num = src->id_num; \
459 dest->pid = src->pid; \
460 dest->addr = src->addr; \
461 dest->ctl_addr = src->ctl_addr; \
462 memcpy(&dest->l_name, &src->l_name, NAME_SIZE_OLD); \
463 memcpy(&dest->r_name, &src->r_name, NAME_SIZE_OLD); \
464 memcpy(&dest->r_tty, &src->r_tty, TTY_SIZE); }
465
466 #define OTOSIN(ptr, field) ((struct sockaddr_in *)&ptr->field)
467 /* old_sockaddr to sockaddr_in */
468
469
470 if (IS_OLD) { /* old talk */
471 omsg = mtod(m, CTL_MSG_OLD*);
472 nmsg = (CTL_MSG *) buff;
473 type = omsg->type;
474 OTOSIN(omsg, ctl_addr)->sin_port = addr.sin_port;
475 OTOSIN(omsg, ctl_addr)->sin_addr = our_addr;
476 pstrcpy(omsg->l_name, NAME_SIZE_OLD, getlogin());
477 } else { /* new talk */
478 omsg = (CTL_MSG_OLD *) buff;
479 nmsg = mtod(m, CTL_MSG *);
480 type = nmsg->type;
481 OTOSIN(nmsg, ctl_addr)->sin_port = addr.sin_port;
482 OTOSIN(nmsg, ctl_addr)->sin_addr = our_addr;
483 pstrcpy(nmsg->l_name, NAME_SIZE_OLD, getlogin());
484 }
485
486 if (type == LOOK_UP)
487 return; /* for LOOK_UP this is enough */
488
489 if (IS_OLD) { /* make a copy of the message */
490 COPY_MSG(nmsg, omsg);
491 nmsg->vers = 1;
492 nmsg->answer = 0;
493 } else
494 COPY_MSG(omsg, nmsg);
495
496 /*
497 * If if is an ANNOUNCE message, we go through the
498 * request table to see if a tcp port has already
499 * been redirected for this socket. If not, we solisten()
500 * a new socket and add this entry to the table.
501 * The port number of the tcp socket and our IP
502 * are put to the addr field of the message structures.
503 * Then a LEAVE_INVITE is sent to both local daemon
504 * ports, 517 and 518. This is why we have two copies
505 * of the message, one in old talk and one in new talk
506 * format.
507 */
508
509 if (type == ANNOUNCE) {
510 int s;
511 u_short temp_port;
512
513 for(req = req_tbl; req; req = req->next)
514 if (so == req->udp_so)
515 break; /* found it */
516
517 if (!req) { /* no entry for so, create new */
518 req = (struct talk_request *)
519 malloc(sizeof(struct talk_request));
520 req->udp_so = so;
521 req->tcp_so = solisten(0,
522 OTOSIN(omsg, addr)->sin_addr.s_addr,
523 OTOSIN(omsg, addr)->sin_port,
524 SS_FACCEPTONCE);
525 req->next = req_tbl;
526 req_tbl = req;
527 }
528
529 /* replace port number in addr field */
530 addrlen = sizeof(addr);
531 getsockname(req->tcp_so->s,
532 (struct sockaddr *) &addr,
533 &addrlen);
534 OTOSIN(omsg, addr)->sin_port = addr.sin_port;
535 OTOSIN(omsg, addr)->sin_addr = our_addr;
536 OTOSIN(nmsg, addr)->sin_port = addr.sin_port;
537 OTOSIN(nmsg, addr)->sin_addr = our_addr;
538
539 /* send LEAVE_INVITEs */
540 temp_port = OTOSIN(omsg, ctl_addr)->sin_port;
541 OTOSIN(omsg, ctl_addr)->sin_port = 0;
542 OTOSIN(nmsg, ctl_addr)->sin_port = 0;
543 omsg->type = nmsg->type = LEAVE_INVITE;
544
545 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
546 addr.sin_addr = our_addr;
547 addr.sin_family = AF_INET;
548 addr.sin_port = htons(517);
549 sendto(s, (char *)omsg, sizeof(*omsg), 0,
550 (struct sockaddr *)&addr, sizeof(addr));
551 addr.sin_port = htons(518);
552 sendto(s, (char *)nmsg, sizeof(*nmsg), 0,
553 (struct sockaddr *) &addr, sizeof(addr));
554 closesocket(s) ;
555
556 omsg->type = nmsg->type = ANNOUNCE;
557 OTOSIN(omsg, ctl_addr)->sin_port = temp_port;
558 OTOSIN(nmsg, ctl_addr)->sin_port = temp_port;
559 }
560
561 /*
562 * If it is a DELETE message, we send a copy to the
563 * local daemons. Then we delete the entry corresponding
564 * to our socket from the request table.
565 */
566
567 if (type == DELETE) {
568 struct talk_request *temp_req, *req_next;
569 int s;
570 u_short temp_port;
571
572 temp_port = OTOSIN(omsg, ctl_addr)->sin_port;
573 OTOSIN(omsg, ctl_addr)->sin_port = 0;
574 OTOSIN(nmsg, ctl_addr)->sin_port = 0;
575
576 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
577 addr.sin_addr = our_addr;
578 addr.sin_family = AF_INET;
579 addr.sin_port = htons(517);
580 sendto(s, (char *)omsg, sizeof(*omsg), 0,
581 (struct sockaddr *)&addr, sizeof(addr));
582 addr.sin_port = htons(518);
583 sendto(s, (char *)nmsg, sizeof(*nmsg), 0,
584 (struct sockaddr *)&addr, sizeof(addr));
585 closesocket(s);
586
587 OTOSIN(omsg, ctl_addr)->sin_port = temp_port;
588 OTOSIN(nmsg, ctl_addr)->sin_port = temp_port;
589
590 /* delete table entry */
591 if (so == req_tbl->udp_so) {
592 temp_req = req_tbl;
593 req_tbl = req_tbl->next;
594 free(temp_req);
595 } else {
596 temp_req = req_tbl;
597 for(req = req_tbl->next; req; req = req_next) {
598 req_next = req->next;
599 if (so == req->udp_so) {
600 temp_req->next = req_next;
601 free(req);
602 break;
603 } else {
604 temp_req = req;
605 }
606 }
607 }
608 }
609
610 return;
611 #endif
612
613 case EMU_CUSEEME:
614
615 /*
616 * Cu-SeeMe emulation.
617 * Hopefully the packet is more that 16 bytes long. We don't
618 * do any other tests, just replace the address and port
619 * fields.
620 */
621 if (m->m_len >= sizeof (*cu_head)) {
622 if (getsockname(so->s, (struct sockaddr *)&addr, &addrlen) < 0)
623 return;
624 cu_head = mtod(m, struct cu_header *);
625 cu_head->s_port = addr.sin_port;
626 cu_head->so_addr = our_addr.s_addr;
627 }
628
629 return;
630 }
631 }
632
633 struct socket *
634 udp_listen(port, laddr, lport, flags)
635 u_int port;
636 u_int32_t laddr;
637 u_int lport;
638 int flags;
639 {
640 struct sockaddr_in addr;
641 struct socket *so;
642 socklen_t addrlen = sizeof(struct sockaddr_in), opt = 1;
643
644 if ((so = socreate()) == NULL) {
645 free(so);
646 return NULL;
647 }
648 so->s = socket(AF_INET,SOCK_DGRAM,0);
649 so->so_expire = curtime + SO_EXPIRE;
650 insque(so,&udb);
651
652 addr.sin_family = AF_INET;
653 addr.sin_addr.s_addr = INADDR_ANY;
654 addr.sin_port = port;
655
656 if (bind(so->s,(struct sockaddr *)&addr, addrlen) < 0) {
657 udp_detach(so);
658 return NULL;
659 }
660 setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
661 /* setsockopt(so->s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int)); */
662
663 getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
664 so->so_fport = addr.sin_port;
665 if (addr.sin_addr.s_addr == 0 || addr.sin_addr.s_addr == loopback_addr.s_addr)
666 so->so_faddr = alias_addr;
667 else
668 so->so_faddr = addr.sin_addr;
669
670 so->so_lport = lport;
671 so->so_laddr.s_addr = laddr;
672 if (flags != SS_FACCEPTONCE)
673 so->so_expire = 0;
674
675 so->so_state = SS_ISFCONNECTED;
676
677 return so;
678 }
Samsung s3c2440 and arm920t support for the mini2440 dev board