FreeBSD/Linux Kernel Cross Reference
sys/netinet/raw_ip.c
1 /*
2 * Copyright (c) 1982, 1986, 1988, 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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95
34 * $FreeBSD$
35 */
36
37 #include "opt_inet6.h"
38 #include "opt_ipsec.h"
39 #include "opt_random_ip_id.h"
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/malloc.h>
45 #include <sys/mbuf.h>
46 #include <sys/proc.h>
47 #include <sys/protosw.h>
48 #include <sys/socket.h>
49 #include <sys/socketvar.h>
50 #include <sys/sysctl.h>
51
52 #include <vm/vm_zone.h>
53
54 #include <net/if.h>
55 #include <net/route.h>
56
57 #define _IP_VHL
58 #include <netinet/in.h>
59 #include <netinet/in_systm.h>
60 #include <netinet/ip.h>
61 #include <netinet/in_pcb.h>
62 #include <netinet/in_var.h>
63 #include <netinet/ip_var.h>
64 #include <netinet/ip_mroute.h>
65
66 #include <netinet/ip_fw.h>
67 #include <netinet/ip_dummynet.h>
68
69 #ifdef FAST_IPSEC
70 #include <netipsec/ipsec.h>
71 #endif /*FAST_IPSEC*/
72
73 #ifdef IPSEC
74 #include <netinet6/ipsec.h>
75 #endif /*IPSEC*/
76
77 struct inpcbhead ripcb;
78 struct inpcbinfo ripcbinfo;
79
80 /* control hooks for ipfw and dummynet */
81 ip_fw_ctl_t *ip_fw_ctl_ptr;
82 ip_dn_ctl_t *ip_dn_ctl_ptr;
83
84 /*
85 * hooks for multicast routing. They all default to NULL,
86 * so leave them not initialized and rely on BSS being set to 0.
87 */
88
89 /* The socket used to communicate with the multicast routing daemon. */
90 struct socket *ip_mrouter;
91
92 /* The various mrouter and rsvp functions */
93 int (*ip_mrouter_set)(struct socket *, struct sockopt *);
94 int (*ip_mrouter_get)(struct socket *, struct sockopt *);
95 int (*ip_mrouter_done)(void);
96 int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *,
97 struct ip_moptions *);
98 int (*mrt_ioctl)(int, caddr_t);
99 int (*legal_vif_num)(int);
100 u_long (*ip_mcast_src)(int);
101
102 void (*rsvp_input_p)(struct mbuf *m, int off, int proto);
103 int (*ip_rsvp_vif)(struct socket *, struct sockopt *);
104 void (*ip_rsvp_force_done)(struct socket *);
105
106 /*
107 * Nominal space allocated to a raw ip socket.
108 */
109 #define RIPSNDQ 8192
110 #define RIPRCVQ 8192
111
112 /*
113 * Raw interface to IP protocol.
114 */
115
116 /*
117 * Initialize raw connection block queue.
118 */
119 void
120 rip_init(void)
121 {
122 LIST_INIT(&ripcb);
123 ripcbinfo.listhead = &ripcb;
124 /*
125 * XXX We don't use the hash list for raw IP, but it's easier
126 * to allocate a one entry hash list than it is to check all
127 * over the place for hashbase == NULL.
128 */
129 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask);
130 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask);
131 ripcbinfo.ipi_zone = zinit("ripcb", sizeof(struct inpcb),
132 maxsockets, ZONE_INTERRUPT, 0);
133 }
134
135 /*
136 * XXX ripsrc is modified in rip_input, so we must be fix this
137 * when we want to make this code smp-friendly.
138 */
139 static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
140
141 /*
142 * Setup generic address and protocol structures
143 * for raw_input routine, then pass them along with
144 * mbuf chain.
145 */
146 void
147 rip_input(struct mbuf *m, int off, int proto)
148 {
149 struct ip *ip = mtod(m, struct ip *);
150 struct inpcb *inp;
151 struct inpcb *last = NULL;
152 struct mbuf *opts = NULL;
153
154 ripsrc.sin_addr = ip->ip_src;
155 LIST_FOREACH(inp, &ripcb, inp_list) {
156 #ifdef INET6
157 if ((inp->inp_vflag & INP_IPV4) == 0)
158 continue;
159 #endif
160 if (inp->inp_ip_p && inp->inp_ip_p != proto)
161 continue;
162 if (inp->inp_laddr.s_addr != INADDR_ANY &&
163 inp->inp_laddr.s_addr != ip->ip_dst.s_addr)
164 continue;
165 if (inp->inp_faddr.s_addr != INADDR_ANY &&
166 inp->inp_faddr.s_addr != ip->ip_src.s_addr)
167 continue;
168 if (last) {
169 struct mbuf *n = m_copypacket(m, M_DONTWAIT);
170
171 #ifdef IPSEC
172 /* check AH/ESP integrity. */
173 if (n && ipsec4_in_reject_so(n, last->inp_socket)) {
174 m_freem(n);
175 ipsecstat.in_polvio++;
176 /* do not inject data to pcb */
177 } else
178 #endif /*IPSEC*/
179 #ifdef FAST_IPSEC
180 /* check AH/ESP integrity. */
181 if (ipsec4_in_reject(n, last)) {
182 m_freem(n);
183 /* do not inject data to pcb */
184 } else
185 #endif /*FAST_IPSEC*/
186 if (n) {
187 if (last->inp_flags & INP_CONTROLOPTS ||
188 last->inp_socket->so_options & SO_TIMESTAMP)
189 ip_savecontrol(last, &opts, ip, n);
190 if (sbappendaddr(&last->inp_socket->so_rcv,
191 (struct sockaddr *)&ripsrc, n,
192 opts) == 0) {
193 /* should notify about lost packet */
194 m_freem(n);
195 if (opts)
196 m_freem(opts);
197 } else
198 sorwakeup(last->inp_socket);
199 opts = 0;
200 }
201 }
202 last = inp;
203 }
204 #ifdef IPSEC
205 /* check AH/ESP integrity. */
206 if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
207 m_freem(m);
208 ipsecstat.in_polvio++;
209 ipstat.ips_delivered--;
210 /* do not inject data to pcb */
211 } else
212 #endif /*IPSEC*/
213 #ifdef FAST_IPSEC
214 /* check AH/ESP integrity. */
215 if (last && ipsec4_in_reject(m, last)) {
216 m_freem(m);
217 ipstat.ips_delivered--;
218 /* do not inject data to pcb */
219 } else
220 #endif /*FAST_IPSEC*/
221 if (last) {
222 if (last->inp_flags & INP_CONTROLOPTS ||
223 last->inp_socket->so_options & SO_TIMESTAMP)
224 ip_savecontrol(last, &opts, ip, m);
225 if (sbappendaddr(&last->inp_socket->so_rcv,
226 (struct sockaddr *)&ripsrc, m, opts) == 0) {
227 m_freem(m);
228 if (opts)
229 m_freem(opts);
230 } else
231 sorwakeup(last->inp_socket);
232 } else {
233 m_freem(m);
234 ipstat.ips_noproto++;
235 ipstat.ips_delivered--;
236 }
237 }
238
239 /*
240 * Generate IP header and pass packet to ip_output.
241 * Tack on options user may have setup with control call.
242 */
243 int
244 rip_output(struct mbuf *m, struct socket *so, u_long dst)
245 {
246 struct ip *ip;
247 struct inpcb *inp = sotoinpcb(so);
248 int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST;
249
250 /*
251 * If the user handed us a complete IP packet, use it.
252 * Otherwise, allocate an mbuf for a header and fill it in.
253 */
254 if ((inp->inp_flags & INP_HDRINCL) == 0) {
255 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) {
256 m_freem(m);
257 return(EMSGSIZE);
258 }
259 M_PREPEND(m, sizeof(struct ip), M_WAIT);
260 if (m == NULL)
261 return(ENOBUFS);
262 ip = mtod(m, struct ip *);
263 ip->ip_tos = inp->inp_ip_tos;
264 ip->ip_off = 0;
265 ip->ip_p = inp->inp_ip_p;
266 ip->ip_len = m->m_pkthdr.len;
267 ip->ip_src = inp->inp_laddr;
268 ip->ip_dst.s_addr = dst;
269 ip->ip_ttl = inp->inp_ip_ttl;
270 } else {
271 if (m->m_pkthdr.len > IP_MAXPACKET) {
272 m_freem(m);
273 return(EMSGSIZE);
274 }
275 ip = mtod(m, struct ip *);
276 /* don't allow both user specified and setsockopt options,
277 and don't allow packet length sizes that will crash */
278 if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2))
279 && inp->inp_options)
280 || (ip->ip_len > m->m_pkthdr.len)
281 || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) {
282 m_freem(m);
283 return EINVAL;
284 }
285 if (ip->ip_id == 0)
286 #ifdef RANDOM_IP_ID
287 ip->ip_id = ip_randomid();
288 #else
289 ip->ip_id = htons(ip_id++);
290 #endif
291 /* XXX prevent ip_output from overwriting header fields */
292 flags |= IP_RAWOUTPUT;
293 ipstat.ips_rawout++;
294 }
295
296 if (inp->inp_flags & INP_ONESBCAST)
297 flags |= IP_SENDONES;
298
299 return (ip_output(m, inp->inp_options, &inp->inp_route, flags,
300 inp->inp_moptions, inp));
301 }
302
303 /*
304 * Raw IP socket option processing.
305 */
306 int
307 rip_ctloutput(struct socket *so, struct sockopt *sopt)
308 {
309 struct inpcb *inp = sotoinpcb(so);
310 int error, optval;
311
312 if (sopt->sopt_level != IPPROTO_IP)
313 return (EINVAL);
314
315 error = 0;
316
317 switch (sopt->sopt_dir) {
318 case SOPT_GET:
319 switch (sopt->sopt_name) {
320 case IP_HDRINCL:
321 optval = inp->inp_flags & INP_HDRINCL;
322 error = sooptcopyout(sopt, &optval, sizeof optval);
323 break;
324
325 case IP_FW_ADD: /* ADD actually returns the body... */
326 case IP_FW_GET:
327 case IP_FW_TABLE_GETSIZE:
328 case IP_FW_TABLE_LIST:
329 if (IPFW_LOADED)
330 error = ip_fw_ctl_ptr(sopt);
331 else
332 error = ENOPROTOOPT;
333 break;
334
335 case IP_DUMMYNET_GET:
336 if (DUMMYNET_LOADED)
337 error = ip_dn_ctl_ptr(sopt);
338 else
339 error = ENOPROTOOPT;
340 break ;
341
342 case MRT_INIT:
343 case MRT_DONE:
344 case MRT_ADD_VIF:
345 case MRT_DEL_VIF:
346 case MRT_ADD_MFC:
347 case MRT_DEL_MFC:
348 case MRT_VERSION:
349 case MRT_ASSERT:
350 case MRT_API_SUPPORT:
351 case MRT_API_CONFIG:
352 case MRT_ADD_BW_UPCALL:
353 case MRT_DEL_BW_UPCALL:
354 error = ip_mrouter_get ? ip_mrouter_get(so, sopt) :
355 EOPNOTSUPP;
356 break;
357
358 default:
359 error = ip_ctloutput(so, sopt);
360 break;
361 }
362 break;
363
364 case SOPT_SET:
365 switch (sopt->sopt_name) {
366 case IP_HDRINCL:
367 error = sooptcopyin(sopt, &optval, sizeof optval,
368 sizeof optval);
369 if (error)
370 break;
371 if (optval)
372 inp->inp_flags |= INP_HDRINCL;
373 else
374 inp->inp_flags &= ~INP_HDRINCL;
375 break;
376
377 case IP_FW_ADD:
378 case IP_FW_DEL:
379 case IP_FW_FLUSH:
380 case IP_FW_ZERO:
381 case IP_FW_RESETLOG:
382 case IP_FW_TABLE_ADD:
383 case IP_FW_TABLE_DEL:
384 case IP_FW_TABLE_FLUSH:
385 if (IPFW_LOADED)
386 error = ip_fw_ctl_ptr(sopt);
387 else
388 error = ENOPROTOOPT;
389 break;
390
391 case IP_DUMMYNET_CONFIGURE:
392 case IP_DUMMYNET_DEL:
393 case IP_DUMMYNET_FLUSH:
394 if (DUMMYNET_LOADED)
395 error = ip_dn_ctl_ptr(sopt);
396 else
397 error = ENOPROTOOPT ;
398 break ;
399
400 case IP_RSVP_ON:
401 error = ip_rsvp_init(so);
402 break;
403
404 case IP_RSVP_OFF:
405 error = ip_rsvp_done();
406 break;
407
408 case IP_RSVP_VIF_ON:
409 case IP_RSVP_VIF_OFF:
410 error = ip_rsvp_vif ?
411 ip_rsvp_vif(so, sopt) : EINVAL;
412 break;
413
414 case MRT_INIT:
415 case MRT_DONE:
416 case MRT_ADD_VIF:
417 case MRT_DEL_VIF:
418 case MRT_ADD_MFC:
419 case MRT_DEL_MFC:
420 case MRT_VERSION:
421 case MRT_ASSERT:
422 case MRT_API_SUPPORT:
423 case MRT_API_CONFIG:
424 case MRT_ADD_BW_UPCALL:
425 case MRT_DEL_BW_UPCALL:
426 error = ip_mrouter_set ? ip_mrouter_set(so, sopt) :
427 EOPNOTSUPP;
428 break;
429
430 default:
431 error = ip_ctloutput(so, sopt);
432 break;
433 }
434 break;
435 }
436
437 return (error);
438 }
439
440 /*
441 * This function exists solely to receive the PRC_IFDOWN messages which
442 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa,
443 * and calls in_ifadown() to remove all routes corresponding to that address.
444 * It also receives the PRC_IFUP messages from if_up() and reinstalls the
445 * interface routes.
446 */
447 void
448 rip_ctlinput(int cmd, struct sockaddr *sa, void *vip)
449 {
450 struct in_ifaddr *ia;
451 struct ifnet *ifp;
452 int err;
453 int flags;
454
455 switch (cmd) {
456 case PRC_IFDOWN:
457 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) {
458 if (ia->ia_ifa.ifa_addr == sa
459 && (ia->ia_flags & IFA_ROUTE)) {
460 /*
461 * in_ifscrub kills the interface route.
462 */
463 in_ifscrub(ia->ia_ifp, ia);
464 /*
465 * in_ifadown gets rid of all the rest of
466 * the routes. This is not quite the right
467 * thing to do, but at least if we are running
468 * a routing process they will come back.
469 */
470 in_ifadown(&ia->ia_ifa, 0);
471 break;
472 }
473 }
474 break;
475
476 case PRC_IFUP:
477 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) {
478 if (ia->ia_ifa.ifa_addr == sa)
479 break;
480 }
481 if (ia == 0 || (ia->ia_flags & IFA_ROUTE))
482 return;
483 flags = RTF_UP;
484 ifp = ia->ia_ifa.ifa_ifp;
485
486 if ((ifp->if_flags & IFF_LOOPBACK)
487 || (ifp->if_flags & IFF_POINTOPOINT))
488 flags |= RTF_HOST;
489
490 err = rtinit(&ia->ia_ifa, RTM_ADD, flags);
491 if (err == 0)
492 ia->ia_flags |= IFA_ROUTE;
493 break;
494 }
495 }
496
497 u_long rip_sendspace = RIPSNDQ;
498 u_long rip_recvspace = RIPRCVQ;
499
500 SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW,
501 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size");
502 SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW,
503 &rip_recvspace, 0, "Maximum incoming raw IP datagram size");
504
505 static int
506 rip_attach(struct socket *so, int proto, struct proc *p)
507 {
508 struct inpcb *inp;
509 int error, s;
510
511 inp = sotoinpcb(so);
512 if (inp)
513 panic("rip_attach");
514 if (p && (error = suser(p)) != 0)
515 return error;
516
517 error = soreserve(so, rip_sendspace, rip_recvspace);
518 if (error)
519 return error;
520 s = splnet();
521 error = in_pcballoc(so, &ripcbinfo, p);
522 splx(s);
523 if (error)
524 return error;
525 inp = (struct inpcb *)so->so_pcb;
526 inp->inp_vflag |= INP_IPV4;
527 inp->inp_ip_p = proto;
528 inp->inp_ip_ttl = ip_defttl;
529 return 0;
530 }
531
532 static int
533 rip_detach(struct socket *so)
534 {
535 struct inpcb *inp;
536
537 inp = sotoinpcb(so);
538 if (inp == 0)
539 panic("rip_detach");
540 if (so == ip_mrouter && ip_mrouter_done)
541 ip_mrouter_done();
542 if (ip_rsvp_force_done)
543 ip_rsvp_force_done(so);
544 if (so == ip_rsvpd)
545 ip_rsvp_done();
546 in_pcbdetach(inp);
547 return 0;
548 }
549
550 static int
551 rip_abort(struct socket *so)
552 {
553 soisdisconnected(so);
554 if (so->so_state & SS_NOFDREF)
555 return rip_detach(so);
556 return 0;
557 }
558
559 static int
560 rip_disconnect(struct socket *so)
561 {
562 if ((so->so_state & SS_ISCONNECTED) == 0)
563 return ENOTCONN;
564 return rip_abort(so);
565 }
566
567 static int
568 rip_bind(struct socket *so, struct sockaddr *nam, struct proc *p)
569 {
570 struct inpcb *inp = sotoinpcb(so);
571 struct sockaddr_in *addr = (struct sockaddr_in *)nam;
572
573 if (nam->sa_len != sizeof(*addr))
574 return EINVAL;
575
576 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) &&
577 (addr->sin_family != AF_IMPLINK)) ||
578 (addr->sin_addr.s_addr != INADDR_ANY &&
579 ifa_ifwithaddr((struct sockaddr *)addr) == 0))
580 return EADDRNOTAVAIL;
581 inp->inp_laddr = addr->sin_addr;
582 return 0;
583 }
584
585 static int
586 rip_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
587 {
588 struct inpcb *inp = sotoinpcb(so);
589 struct sockaddr_in *addr = (struct sockaddr_in *)nam;
590
591 if (nam->sa_len != sizeof(*addr))
592 return EINVAL;
593 if (TAILQ_EMPTY(&ifnet))
594 return EADDRNOTAVAIL;
595 if ((addr->sin_family != AF_INET) &&
596 (addr->sin_family != AF_IMPLINK))
597 return EAFNOSUPPORT;
598 inp->inp_faddr = addr->sin_addr;
599 soisconnected(so);
600 return 0;
601 }
602
603 static int
604 rip_shutdown(struct socket *so)
605 {
606 socantsendmore(so);
607 return 0;
608 }
609
610 static int
611 rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
612 struct mbuf *control, struct proc *p)
613 {
614 struct inpcb *inp = sotoinpcb(so);
615 u_long dst;
616
617 if (so->so_state & SS_ISCONNECTED) {
618 if (nam) {
619 m_freem(m);
620 return EISCONN;
621 }
622 dst = inp->inp_faddr.s_addr;
623 } else {
624 if (nam == NULL) {
625 m_freem(m);
626 return ENOTCONN;
627 }
628 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr;
629 }
630 return rip_output(m, so, dst);
631 }
632
633 static int
634 rip_pcblist(SYSCTL_HANDLER_ARGS)
635 {
636 int error, i, n, s;
637 struct inpcb *inp, **inp_list;
638 inp_gen_t gencnt;
639 struct xinpgen xig;
640
641 /*
642 * The process of preparing the TCB list is too time-consuming and
643 * resource-intensive to repeat twice on every request.
644 */
645 if (req->oldptr == 0) {
646 n = ripcbinfo.ipi_count;
647 req->oldidx = 2 * (sizeof xig)
648 + (n + n/8) * sizeof(struct xinpcb);
649 return 0;
650 }
651
652 if (req->newptr != 0)
653 return EPERM;
654
655 /*
656 * OK, now we're committed to doing something.
657 */
658 s = splnet();
659 gencnt = ripcbinfo.ipi_gencnt;
660 n = ripcbinfo.ipi_count;
661 splx(s);
662
663 xig.xig_len = sizeof xig;
664 xig.xig_count = n;
665 xig.xig_gen = gencnt;
666 xig.xig_sogen = so_gencnt;
667 error = SYSCTL_OUT(req, &xig, sizeof xig);
668 if (error)
669 return error;
670
671 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK);
672 if (inp_list == 0)
673 return ENOMEM;
674
675 s = splnet();
676 for (inp = LIST_FIRST(ripcbinfo.listhead), i = 0; inp && i < n;
677 inp = LIST_NEXT(inp, inp_list)) {
678 if (inp->inp_gencnt <= gencnt)
679 inp_list[i++] = inp;
680 }
681 splx(s);
682 n = i;
683
684 error = 0;
685 for (i = 0; i < n; i++) {
686 inp = inp_list[i];
687 if (inp->inp_gencnt <= gencnt) {
688 struct xinpcb xi;
689 bzero(&xi, sizeof(xi));
690 xi.xi_len = sizeof xi;
691 /* XXX should avoid extra copy */
692 bcopy(inp, &xi.xi_inp, sizeof *inp);
693 if (inp->inp_socket)
694 sotoxsocket(inp->inp_socket, &xi.xi_socket);
695 error = SYSCTL_OUT(req, &xi, sizeof xi);
696 }
697 }
698 if (!error) {
699 /*
700 * Give the user an updated idea of our state.
701 * If the generation differs from what we told
702 * her before, she knows that something happened
703 * while we were processing this request, and it
704 * might be necessary to retry.
705 */
706 s = splnet();
707 xig.xig_gen = ripcbinfo.ipi_gencnt;
708 xig.xig_sogen = so_gencnt;
709 xig.xig_count = ripcbinfo.ipi_count;
710 splx(s);
711 error = SYSCTL_OUT(req, &xig, sizeof xig);
712 }
713 free(inp_list, M_TEMP);
714 return error;
715 }
716
717 SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0,
718 rip_pcblist, "S,xinpcb", "List of active raw IP sockets");
719
720 struct pr_usrreqs rip_usrreqs = {
721 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect,
722 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect,
723 pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp,
724 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown,
725 in_setsockaddr, sosend, soreceive, sopoll
726 };
Cache object: ada01c392382a13303850e5e0393ed0d
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