Once we distribute socket protocol processing requests to different
[dragonfly.git] / sys / netinet / raw_ip.c
CommitLineData
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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
f1f552f6 34 * $FreeBSD: src/sys/netinet/raw_ip.c,v 1.64.2.16 2003/08/24 08:24:38 hsu Exp $
e4700d00 35 * $DragonFly: src/sys/netinet/raw_ip.c,v 1.10 2004/03/05 16:57:15 hsu Exp $
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36 */
37
38#include "opt_inet6.h"
39#include "opt_ipsec.h"
40#include "opt_random_ip_id.h"
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/malloc.h>
46#include <sys/mbuf.h>
47#include <sys/proc.h>
48#include <sys/protosw.h>
49#include <sys/socket.h>
50#include <sys/socketvar.h>
51#include <sys/sysctl.h>
52
53#include <vm/vm_zone.h>
54
55#include <net/if.h>
56#include <net/route.h>
57
58#define _IP_VHL
59#include <netinet/in.h>
60#include <netinet/in_systm.h>
61#include <netinet/ip.h>
62#include <netinet/in_pcb.h>
63#include <netinet/in_var.h>
64#include <netinet/ip_var.h>
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66#include <net/ip_mroute/ip_mroute.h>
67#include <net/ipfw/ip_fw.h>
68#include <net/dummynet/ip_dummynet.h>
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69
70#ifdef FAST_IPSEC
71#include <netipsec/ipsec.h>
72#endif /*FAST_IPSEC*/
73
74#ifdef IPSEC
75#include <netinet6/ipsec.h>
76#endif /*IPSEC*/
77
78struct inpcbhead ripcb;
79struct inpcbinfo ripcbinfo;
80
81/* control hooks for ipfw and dummynet */
82ip_fw_ctl_t *ip_fw_ctl_ptr;
83ip_dn_ctl_t *ip_dn_ctl_ptr;
84
85/*
86 * hooks for multicast routing. They all default to NULL,
87 * so leave them not initialized and rely on BSS being set to 0.
88 */
89
90/* The socket used to communicate with the multicast routing daemon. */
91struct socket *ip_mrouter;
92
93/* The various mrouter and rsvp functions */
94int (*ip_mrouter_set)(struct socket *, struct sockopt *);
95int (*ip_mrouter_get)(struct socket *, struct sockopt *);
96int (*ip_mrouter_done)(void);
97int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *,
98 struct ip_moptions *);
99int (*mrt_ioctl)(int, caddr_t);
100int (*legal_vif_num)(int);
101u_long (*ip_mcast_src)(int);
102
103void (*rsvp_input_p)(struct mbuf *m, int off, int proto);
104int (*ip_rsvp_vif)(struct socket *, struct sockopt *);
105void (*ip_rsvp_force_done)(struct socket *);
106
107/*
108 * Nominal space allocated to a raw ip socket.
109 */
110#define RIPSNDQ 8192
111#define RIPRCVQ 8192
112
113/*
114 * Raw interface to IP protocol.
115 */
116
117/*
118 * Initialize raw connection block queue.
119 */
120void
121rip_init(void)
122{
123 LIST_INIT(&ripcb);
124 ripcbinfo.listhead = &ripcb;
125 /*
126 * XXX We don't use the hash list for raw IP, but it's easier
127 * to allocate a one entry hash list than it is to check all
128 * over the place for hashbase == NULL.
129 */
130 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask);
131 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask);
13d8907a 132 ripcbinfo.bindhashbase = hashinit(1, M_PCB, &ripcbinfo.bindhashmask);
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133 ripcbinfo.ipi_zone = zinit("ripcb", sizeof(struct inpcb),
134 maxsockets, ZONE_INTERRUPT, 0);
135}
136
137/*
138 * XXX ripsrc is modified in rip_input, so we must be fix this
139 * when we want to make this code smp-friendly.
140 */
141static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
142
143/*
144 * Setup generic address and protocol structures
145 * for raw_input routine, then pass them along with
146 * mbuf chain.
147 */
148void
149rip_input(struct mbuf *m, int off, int proto)
150{
151 struct ip *ip = mtod(m, struct ip *);
152 struct inpcb *inp;
153 struct inpcb *last = NULL;
154 struct mbuf *opts = NULL;
155
156 ripsrc.sin_addr = ip->ip_src;
157 LIST_FOREACH(inp, &ripcb, inp_list) {
158#ifdef INET6
159 if ((inp->inp_vflag & INP_IPV4) == 0)
160 continue;
161#endif
162 if (inp->inp_ip_p && inp->inp_ip_p != proto)
163 continue;
164 if (inp->inp_laddr.s_addr != INADDR_ANY &&
165 inp->inp_laddr.s_addr != ip->ip_dst.s_addr)
166 continue;
167 if (inp->inp_faddr.s_addr != INADDR_ANY &&
168 inp->inp_faddr.s_addr != ip->ip_src.s_addr)
169 continue;
170 if (last) {
171 struct mbuf *n = m_copypacket(m, M_DONTWAIT);
172
173#ifdef IPSEC
174 /* check AH/ESP integrity. */
175 if (n && ipsec4_in_reject_so(n, last->inp_socket)) {
176 m_freem(n);
177 ipsecstat.in_polvio++;
178 /* do not inject data to pcb */
179 } else
180#endif /*IPSEC*/
181#ifdef FAST_IPSEC
182 /* check AH/ESP integrity. */
183 if (ipsec4_in_reject(n, last)) {
184 m_freem(n);
185 /* do not inject data to pcb */
186 } else
187#endif /*FAST_IPSEC*/
188 if (n) {
189 if (last->inp_flags & INP_CONTROLOPTS ||
190 last->inp_socket->so_options & SO_TIMESTAMP)
191 ip_savecontrol(last, &opts, ip, n);
192 if (sbappendaddr(&last->inp_socket->so_rcv,
193 (struct sockaddr *)&ripsrc, n,
194 opts) == 0) {
195 /* should notify about lost packet */
196 m_freem(n);
197 if (opts)
198 m_freem(opts);
199 } else
200 sorwakeup(last->inp_socket);
201 opts = 0;
202 }
203 }
204 last = inp;
205 }
206#ifdef IPSEC
207 /* check AH/ESP integrity. */
208 if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
209 m_freem(m);
210 ipsecstat.in_polvio++;
211 ipstat.ips_delivered--;
212 /* do not inject data to pcb */
213 } else
214#endif /*IPSEC*/
215#ifdef FAST_IPSEC
216 /* check AH/ESP integrity. */
217 if (last && ipsec4_in_reject(m, last)) {
218 m_freem(m);
219 ipstat.ips_delivered--;
220 /* do not inject data to pcb */
221 } else
222#endif /*FAST_IPSEC*/
223 if (last) {
224 if (last->inp_flags & INP_CONTROLOPTS ||
225 last->inp_socket->so_options & SO_TIMESTAMP)
226 ip_savecontrol(last, &opts, ip, m);
227 if (sbappendaddr(&last->inp_socket->so_rcv,
228 (struct sockaddr *)&ripsrc, m, opts) == 0) {
229 m_freem(m);
230 if (opts)
231 m_freem(opts);
232 } else
233 sorwakeup(last->inp_socket);
234 } else {
235 m_freem(m);
236 ipstat.ips_noproto++;
237 ipstat.ips_delivered--;
238 }
239}
240
241/*
242 * Generate IP header and pass packet to ip_output.
243 * Tack on options user may have setup with control call.
244 */
245int
246rip_output(struct mbuf *m, struct socket *so, u_long dst)
247{
248 struct ip *ip;
249 struct inpcb *inp = sotoinpcb(so);
250 int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST;
251
252 /*
253 * If the user handed us a complete IP packet, use it.
254 * Otherwise, allocate an mbuf for a header and fill it in.
255 */
256 if ((inp->inp_flags & INP_HDRINCL) == 0) {
257 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) {
258 m_freem(m);
259 return(EMSGSIZE);
260 }
261 M_PREPEND(m, sizeof(struct ip), M_WAIT);
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262 if (m == NULL)
263 return(ENOBUFS);
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264 ip = mtod(m, struct ip *);
265 ip->ip_tos = inp->inp_ip_tos;
266 ip->ip_off = 0;
267 ip->ip_p = inp->inp_ip_p;
268 ip->ip_len = m->m_pkthdr.len;
269 ip->ip_src = inp->inp_laddr;
270 ip->ip_dst.s_addr = dst;
271 ip->ip_ttl = inp->inp_ip_ttl;
272 } else {
273 if (m->m_pkthdr.len > IP_MAXPACKET) {
274 m_freem(m);
275 return(EMSGSIZE);
276 }
277 ip = mtod(m, struct ip *);
278 /* don't allow both user specified and setsockopt options,
279 and don't allow packet length sizes that will crash */
280 if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2))
281 && inp->inp_options)
282 || (ip->ip_len > m->m_pkthdr.len)
283 || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) {
284 m_freem(m);
285 return EINVAL;
286 }
287 if (ip->ip_id == 0)
288#ifdef RANDOM_IP_ID
289 ip->ip_id = ip_randomid();
290#else
291 ip->ip_id = htons(ip_id++);
292#endif
293 /* XXX prevent ip_output from overwriting header fields */
294 flags |= IP_RAWOUTPUT;
295 ipstat.ips_rawout++;
296 }
297
298 return (ip_output(m, inp->inp_options, &inp->inp_route, flags,
299 inp->inp_moptions, inp));
300}
301
302/*
303 * Raw IP socket option processing.
304 */
305int
306rip_ctloutput(struct socket *so, struct sockopt *sopt)
307{
308 struct inpcb *inp = sotoinpcb(so);
309 int error, optval;
310
311 if (sopt->sopt_level != IPPROTO_IP)
312 return (EINVAL);
313
314 error = 0;
315
316 switch (sopt->sopt_dir) {
317 case SOPT_GET:
318 switch (sopt->sopt_name) {
319 case IP_HDRINCL:
320 optval = inp->inp_flags & INP_HDRINCL;
321 error = sooptcopyout(sopt, &optval, sizeof optval);
322 break;
323
324 case IP_FW_ADD: /* ADD actually returns the body... */
325 case IP_FW_GET:
326 if (IPFW_LOADED)
327 error = ip_fw_ctl_ptr(sopt);
328 else
329 error = ENOPROTOOPT;
330 break;
331
332 case IP_DUMMYNET_GET:
333 if (DUMMYNET_LOADED)
334 error = ip_dn_ctl_ptr(sopt);
335 else
336 error = ENOPROTOOPT;
337 break ;
338
339 case MRT_INIT:
340 case MRT_DONE:
341 case MRT_ADD_VIF:
342 case MRT_DEL_VIF:
343 case MRT_ADD_MFC:
344 case MRT_DEL_MFC:
345 case MRT_VERSION:
346 case MRT_ASSERT:
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347 case MRT_API_SUPPORT:
348 case MRT_API_CONFIG:
349 case MRT_ADD_BW_UPCALL:
350 case MRT_DEL_BW_UPCALL:
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351 error = ip_mrouter_get ? ip_mrouter_get(so, sopt) :
352 EOPNOTSUPP;
353 break;
354
355 default:
356 error = ip_ctloutput(so, sopt);
357 break;
358 }
359 break;
360
361 case SOPT_SET:
362 switch (sopt->sopt_name) {
363 case IP_HDRINCL:
364 error = sooptcopyin(sopt, &optval, sizeof optval,
365 sizeof optval);
366 if (error)
367 break;
368 if (optval)
369 inp->inp_flags |= INP_HDRINCL;
370 else
371 inp->inp_flags &= ~INP_HDRINCL;
372 break;
373
374 case IP_FW_ADD:
375 case IP_FW_DEL:
376 case IP_FW_FLUSH:
377 case IP_FW_ZERO:
378 case IP_FW_RESETLOG:
379 if (IPFW_LOADED)
380 error = ip_fw_ctl_ptr(sopt);
381 else
382 error = ENOPROTOOPT;
383 break;
384
385 case IP_DUMMYNET_CONFIGURE:
386 case IP_DUMMYNET_DEL:
387 case IP_DUMMYNET_FLUSH:
388 if (DUMMYNET_LOADED)
389 error = ip_dn_ctl_ptr(sopt);
390 else
391 error = ENOPROTOOPT ;
392 break ;
393
394 case IP_RSVP_ON:
395 error = ip_rsvp_init(so);
396 break;
397
398 case IP_RSVP_OFF:
399 error = ip_rsvp_done();
400 break;
401
402 case IP_RSVP_VIF_ON:
403 case IP_RSVP_VIF_OFF:
404 error = ip_rsvp_vif ?
405 ip_rsvp_vif(so, sopt) : EINVAL;
406 break;
407
408 case MRT_INIT:
409 case MRT_DONE:
410 case MRT_ADD_VIF:
411 case MRT_DEL_VIF:
412 case MRT_ADD_MFC:
413 case MRT_DEL_MFC:
414 case MRT_VERSION:
415 case MRT_ASSERT:
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416 case MRT_API_SUPPORT:
417 case MRT_API_CONFIG:
418 case MRT_ADD_BW_UPCALL:
419 case MRT_DEL_BW_UPCALL:
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420 error = ip_mrouter_set ? ip_mrouter_set(so, sopt) :
421 EOPNOTSUPP;
422 break;
423
424 default:
425 error = ip_ctloutput(so, sopt);
426 break;
427 }
428 break;
429 }
430
431 return (error);
432}
433
434/*
435 * This function exists solely to receive the PRC_IFDOWN messages which
436 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa,
437 * and calls in_ifadown() to remove all routes corresponding to that address.
438 * It also receives the PRC_IFUP messages from if_up() and reinstalls the
439 * interface routes.
440 */
441void
442rip_ctlinput(int cmd, struct sockaddr *sa, void *vip)
443{
444 struct in_ifaddr *ia;
445 struct ifnet *ifp;
446 int err;
447 int flags;
448
449 switch (cmd) {
450 case PRC_IFDOWN:
451 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) {
452 if (ia->ia_ifa.ifa_addr == sa
453 && (ia->ia_flags & IFA_ROUTE)) {
454 /*
455 * in_ifscrub kills the interface route.
456 */
457 in_ifscrub(ia->ia_ifp, ia);
458 /*
459 * in_ifadown gets rid of all the rest of
460 * the routes. This is not quite the right
461 * thing to do, but at least if we are running
462 * a routing process they will come back.
463 */
464 in_ifadown(&ia->ia_ifa, 0);
465 break;
466 }
467 }
468 break;
469
470 case PRC_IFUP:
471 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) {
472 if (ia->ia_ifa.ifa_addr == sa)
473 break;
474 }
475 if (ia == 0 || (ia->ia_flags & IFA_ROUTE))
476 return;
477 flags = RTF_UP;
478 ifp = ia->ia_ifa.ifa_ifp;
479
480 if ((ifp->if_flags & IFF_LOOPBACK)
481 || (ifp->if_flags & IFF_POINTOPOINT))
482 flags |= RTF_HOST;
483
484 err = rtinit(&ia->ia_ifa, RTM_ADD, flags);
485 if (err == 0)
486 ia->ia_flags |= IFA_ROUTE;
487 break;
488 }
489}
490
491u_long rip_sendspace = RIPSNDQ;
492u_long rip_recvspace = RIPRCVQ;
493
494SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW,
495 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size");
496SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW,
497 &rip_recvspace, 0, "Maximum incoming raw IP datagram size");
498
499static int
e4700d00 500rip_attach(struct socket *so, int proto, struct pru_attach_info *ai)
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501{
502 struct inpcb *inp;
503 int error, s;
504
505 inp = sotoinpcb(so);
506 if (inp)
507 panic("rip_attach");
e4700d00 508 if ((error = suser_cred(ai->p_ucred, NULL_CRED_OKAY)) != 0)
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509 return error;
510
e4700d00 511 error = soreserve(so, rip_sendspace, rip_recvspace, ai->sb_rlimit);
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512 if (error)
513 return error;
514 s = splnet();
e4700d00 515 error = in_pcballoc(so, &ripcbinfo);
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516 splx(s);
517 if (error)
518 return error;
519 inp = (struct inpcb *)so->so_pcb;
520 inp->inp_vflag |= INP_IPV4;
521 inp->inp_ip_p = proto;
522 inp->inp_ip_ttl = ip_defttl;
523 return 0;
524}
525
526static int
527rip_detach(struct socket *so)
528{
529 struct inpcb *inp;
530
531 inp = sotoinpcb(so);
532 if (inp == 0)
533 panic("rip_detach");
534 if (so == ip_mrouter && ip_mrouter_done)
535 ip_mrouter_done();
536 if (ip_rsvp_force_done)
537 ip_rsvp_force_done(so);
538 if (so == ip_rsvpd)
539 ip_rsvp_done();
540 in_pcbdetach(inp);
541 return 0;
542}
543
544static int
545rip_abort(struct socket *so)
546{
547 soisdisconnected(so);
548 if (so->so_state & SS_NOFDREF)
549 return rip_detach(so);
550 return 0;
551}
552
553static int
554rip_disconnect(struct socket *so)
555{
556 if ((so->so_state & SS_ISCONNECTED) == 0)
557 return ENOTCONN;
558 return rip_abort(so);
559}
560
561static int
dadab5e9 562rip_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
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563{
564 struct inpcb *inp = sotoinpcb(so);
565 struct sockaddr_in *addr = (struct sockaddr_in *)nam;
566
567 if (nam->sa_len != sizeof(*addr))
568 return EINVAL;
569
570 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) &&
571 (addr->sin_family != AF_IMPLINK)) ||
572 (addr->sin_addr.s_addr != INADDR_ANY &&
573 ifa_ifwithaddr((struct sockaddr *)addr) == 0))
574 return EADDRNOTAVAIL;
575 inp->inp_laddr = addr->sin_addr;
576 return 0;
577}
578
579static int
dadab5e9 580rip_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
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581{
582 struct inpcb *inp = sotoinpcb(so);
583 struct sockaddr_in *addr = (struct sockaddr_in *)nam;
584
585 if (nam->sa_len != sizeof(*addr))
586 return EINVAL;
587 if (TAILQ_EMPTY(&ifnet))
588 return EADDRNOTAVAIL;
589 if ((addr->sin_family != AF_INET) &&
590 (addr->sin_family != AF_IMPLINK))
591 return EAFNOSUPPORT;
592 inp->inp_faddr = addr->sin_addr;
593 soisconnected(so);
594 return 0;
595}
596
597static int
598rip_shutdown(struct socket *so)
599{
600 socantsendmore(so);
601 return 0;
602}
603
604static int
605rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
dadab5e9 606 struct mbuf *control, struct thread *td)
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607{
608 struct inpcb *inp = sotoinpcb(so);
609 u_long dst;
610
611 if (so->so_state & SS_ISCONNECTED) {
612 if (nam) {
613 m_freem(m);
614 return EISCONN;
615 }
616 dst = inp->inp_faddr.s_addr;
617 } else {
618 if (nam == NULL) {
619 m_freem(m);
620 return ENOTCONN;
621 }
622 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr;
623 }
624 return rip_output(m, so, dst);
625}
626
627static int
628rip_pcblist(SYSCTL_HANDLER_ARGS)
629{
630 int error, i, n, s;
631 struct inpcb *inp, **inp_list;
632 inp_gen_t gencnt;
633 struct xinpgen xig;
634
635 /*
636 * The process of preparing the TCB list is too time-consuming and
637 * resource-intensive to repeat twice on every request.
638 */
639 if (req->oldptr == 0) {
640 n = ripcbinfo.ipi_count;
641 req->oldidx = 2 * (sizeof xig)
642 + (n + n/8) * sizeof(struct xinpcb);
643 return 0;
644 }
645
646 if (req->newptr != 0)
647 return EPERM;
648
649 /*
650 * OK, now we're committed to doing something.
651 */
652 s = splnet();
653 gencnt = ripcbinfo.ipi_gencnt;
654 n = ripcbinfo.ipi_count;
655 splx(s);
656
657 xig.xig_len = sizeof xig;
658 xig.xig_count = n;
659 xig.xig_gen = gencnt;
660 xig.xig_sogen = so_gencnt;
661 error = SYSCTL_OUT(req, &xig, sizeof xig);
662 if (error)
663 return error;
664
665 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK);
666 if (inp_list == 0)
667 return ENOMEM;
668
669 s = splnet();
670 for (inp = LIST_FIRST(ripcbinfo.listhead), i = 0; inp && i < n;
671 inp = LIST_NEXT(inp, inp_list)) {
672 if (inp->inp_gencnt <= gencnt)
673 inp_list[i++] = inp;
674 }
675 splx(s);
676 n = i;
677
678 error = 0;
679 for (i = 0; i < n; i++) {
680 inp = inp_list[i];
681 if (inp->inp_gencnt <= gencnt) {
682 struct xinpcb xi;
683 xi.xi_len = sizeof xi;
684 /* XXX should avoid extra copy */
685 bcopy(inp, &xi.xi_inp, sizeof *inp);
686 if (inp->inp_socket)
687 sotoxsocket(inp->inp_socket, &xi.xi_socket);
688 error = SYSCTL_OUT(req, &xi, sizeof xi);
689 }
690 }
691 if (!error) {
692 /*
693 * Give the user an updated idea of our state.
694 * If the generation differs from what we told
695 * her before, she knows that something happened
696 * while we were processing this request, and it
697 * might be necessary to retry.
698 */
699 s = splnet();
700 xig.xig_gen = ripcbinfo.ipi_gencnt;
701 xig.xig_sogen = so_gencnt;
702 xig.xig_count = ripcbinfo.ipi_count;
703 splx(s);
704 error = SYSCTL_OUT(req, &xig, sizeof xig);
705 }
706 free(inp_list, M_TEMP);
707 return error;
708}
709
710SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0,
711 rip_pcblist, "S,xinpcb", "List of active raw IP sockets");
712
713struct pr_usrreqs rip_usrreqs = {
714 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect,
715 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect,
716 pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp,
717 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown,
718 in_setsockaddr, sosend, soreceive, sopoll
719};