2 * Copyright (c) 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
5 * This code is derived from software contributed to The DragonFly Project
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Copyright (c) 1982, 1986, 1991, 1993, 1995
36 * The Regents of the University of California. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * @(#)in_pcb.c 8.4 (Berkeley) 5/24/95
67 * $FreeBSD: src/sys/netinet/in_pcb.c,v 1.59.2.27 2004/01/02 04:06:42 ambrisko Exp $
70 #include "opt_ipsec.h"
71 #include "opt_inet6.h"
73 #include <sys/param.h>
74 #include <sys/systm.h>
75 #include <sys/malloc.h>
77 #include <sys/domain.h>
78 #include <sys/protosw.h>
79 #include <sys/socket.h>
80 #include <sys/socketvar.h>
84 #include <sys/kernel.h>
85 #include <sys/sysctl.h>
87 #include <sys/thread2.h>
88 #include <sys/socketvar2.h>
89 #include <sys/msgport2.h>
91 #include <machine/limits.h>
94 #include <net/if_types.h>
95 #include <net/route.h>
97 #include <netinet/in.h>
98 #include <netinet/in_pcb.h>
99 #include <netinet/in_var.h>
100 #include <netinet/ip_var.h>
102 #include <netinet/ip6.h>
103 #include <netinet6/ip6_var.h>
107 #include <netinet6/ipsec.h>
108 #include <netproto/key/key.h>
109 #include <netproto/ipsec/esp_var.h>
113 #if defined(IPSEC) || defined(IPSEC_ESP)
114 #error "Bad idea: don't compile with both IPSEC and FAST_IPSEC!"
117 #include <netproto/ipsec/ipsec.h>
118 #include <netproto/ipsec/key.h>
120 #endif /* FAST_IPSEC */
122 struct in_addr zeroin_addr;
125 * These configure the range of local port addresses assigned to
126 * "unspecified" outgoing connections/packets/whatever.
128 int ipport_lowfirstauto = IPPORT_RESERVED - 1; /* 1023 */
129 int ipport_lowlastauto = IPPORT_RESERVEDSTART; /* 600 */
131 int ipport_firstauto = IPPORT_RESERVED; /* 1024 */
132 int ipport_lastauto = IPPORT_USERRESERVED; /* 5000 */
134 int ipport_hifirstauto = IPPORT_HIFIRSTAUTO; /* 49152 */
135 int ipport_hilastauto = IPPORT_HILASTAUTO; /* 65535 */
137 #define RANGECHK(var, min, max) \
138 if ((var) < (min)) { (var) = (min); } \
139 else if ((var) > (max)) { (var) = (max); }
141 int udpencap_enable = 1; /* enabled by default */
142 int udpencap_port = 4500; /* triggers decapsulation */
145 sysctl_net_ipport_check(SYSCTL_HANDLER_ARGS)
149 error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
151 RANGECHK(ipport_lowfirstauto, 1, IPPORT_RESERVED - 1);
152 RANGECHK(ipport_lowlastauto, 1, IPPORT_RESERVED - 1);
154 RANGECHK(ipport_firstauto, IPPORT_RESERVED, USHRT_MAX);
155 RANGECHK(ipport_lastauto, IPPORT_RESERVED, USHRT_MAX);
157 RANGECHK(ipport_hifirstauto, IPPORT_RESERVED, USHRT_MAX);
158 RANGECHK(ipport_hilastauto, IPPORT_RESERVED, USHRT_MAX);
165 SYSCTL_NODE(_net_inet_ip, IPPROTO_IP, portrange, CTLFLAG_RW, 0, "IP Ports");
167 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, lowfirst, CTLTYPE_INT|CTLFLAG_RW,
168 &ipport_lowfirstauto, 0, &sysctl_net_ipport_check, "I", "");
169 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, lowlast, CTLTYPE_INT|CTLFLAG_RW,
170 &ipport_lowlastauto, 0, &sysctl_net_ipport_check, "I", "");
171 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, first, CTLTYPE_INT|CTLFLAG_RW,
172 &ipport_firstauto, 0, &sysctl_net_ipport_check, "I", "");
173 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, last, CTLTYPE_INT|CTLFLAG_RW,
174 &ipport_lastauto, 0, &sysctl_net_ipport_check, "I", "");
175 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, hifirst, CTLTYPE_INT|CTLFLAG_RW,
176 &ipport_hifirstauto, 0, &sysctl_net_ipport_check, "I", "");
177 SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, hilast, CTLTYPE_INT|CTLFLAG_RW,
178 &ipport_hilastauto, 0, &sysctl_net_ipport_check, "I", "");
181 * in_pcb.c: manage the Protocol Control Blocks.
183 * NOTE: It is assumed that most of these functions will be called from
184 * a critical section. XXX - There are, unfortunately, a few exceptions
185 * to this rule that should be fixed.
187 * NOTE: The caller should initialize the cpu field to the cpu running the
188 * protocol stack associated with this inpcbinfo.
192 in_pcbinfo_init(struct inpcbinfo *pcbinfo)
194 LIST_INIT(&pcbinfo->pcblisthead);
196 pcbinfo->portsave = kmalloc(sizeof(*pcbinfo->portsave), M_PCB,
200 struct baddynamicports baddynamicports;
203 * Check if the specified port is invalid for dynamic allocation.
206 in_baddynamic(u_int16_t port, u_int16_t proto)
210 return (DP_ISSET(baddynamicports.tcp, port));
213 /* Cannot preset this as it is a sysctl */
214 if (port == udpencap_port)
217 return (DP_ISSET(baddynamicports.udp, port));
225 * Allocate a PCB and associate it with the socket.
228 in_pcballoc(struct socket *so, struct inpcbinfo *pcbinfo)
235 inp = kmalloc(pcbinfo->ipi_size, M_PCB, M_WAITOK|M_ZERO);
236 inp->inp_gencnt = ++pcbinfo->ipi_gencnt;
237 inp->inp_pcbinfo = inp->inp_cpcbinfo = pcbinfo;
238 inp->inp_socket = so;
240 error = ipsec_init_policy(so, &inp->inp_sp);
247 if (INP_SOCKAF(so) == AF_INET6 && ip6_v6only)
248 inp->inp_flags |= IN6P_IPV6_V6ONLY;
249 if (ip6_auto_flowlabel)
250 inp->inp_flags |= IN6P_AUTOFLOWLABEL;
254 LIST_INSERT_HEAD(&pcbinfo->pcblisthead, inp, inp_list);
255 pcbinfo->ipi_count++;
260 * Unlink a pcb with the intention of moving it to another cpu with a
261 * different pcbinfo. While unlinked nothing should attempt to dereference
262 * inp_pcbinfo, NULL it out so we assert if it does.
265 in_pcbunlink(struct inpcb *inp, struct inpcbinfo *pcbinfo)
267 KKASSERT(inp->inp_pcbinfo == pcbinfo);
269 LIST_REMOVE(inp, inp_list);
270 pcbinfo->ipi_count--;
271 inp->inp_pcbinfo = NULL;
275 * Relink a pcb into a new pcbinfo.
278 in_pcblink(struct inpcb *inp, struct inpcbinfo *pcbinfo)
280 KKASSERT(inp->inp_pcbinfo == NULL);
281 inp->inp_pcbinfo = pcbinfo;
282 LIST_INSERT_HEAD(&pcbinfo->pcblisthead, inp, inp_list);
283 pcbinfo->ipi_count++;
287 in_pcbbind(struct inpcb *inp, struct sockaddr *nam, struct thread *td)
289 struct socket *so = inp->inp_socket;
290 struct proc *p = td->td_proc;
291 unsigned short *lastport;
292 struct sockaddr_in *sin;
293 struct sockaddr_in jsin;
294 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
295 struct ucred *cred = NULL;
297 int wild = 0, reuseport = (so->so_options & SO_REUSEPORT);
302 if (TAILQ_EMPTY(&in_ifaddrheads[mycpuid])) /* XXX broken! */
303 return (EADDRNOTAVAIL);
304 if (inp->inp_lport != 0 || inp->inp_laddr.s_addr != INADDR_ANY)
305 return (EINVAL); /* already bound */
307 if (!(so->so_options & (SO_REUSEADDR|SO_REUSEPORT)))
308 wild = 1; /* neither SO_REUSEADDR nor SO_REUSEPORT is set */
313 * This has to be atomic. If the porthash is shared across multiple
314 * protocol threads (aka tcp) then the token will be non-NULL.
316 if (pcbinfo->porttoken)
317 lwkt_gettoken(pcbinfo->porttoken);
320 sin = (struct sockaddr_in *)nam;
321 if (nam->sa_len != sizeof *sin) {
327 * We should check the family, but old programs
328 * incorrectly fail to initialize it.
330 if (sin->sin_family != AF_INET) {
331 error = EAFNOSUPPORT;
335 if (!prison_replace_wildcards(td, nam)) {
339 lport = sin->sin_port;
340 if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) {
342 * Treat SO_REUSEADDR as SO_REUSEPORT for multicast;
343 * allow complete duplication of binding if
344 * SO_REUSEPORT is set, or if SO_REUSEADDR is set
345 * and a multicast address is bound on both
346 * new and duplicated sockets.
348 if (so->so_options & SO_REUSEADDR)
349 reuseport = SO_REUSEADDR | SO_REUSEPORT;
350 } else if (sin->sin_addr.s_addr != INADDR_ANY) {
351 sin->sin_port = 0; /* yech... */
352 bzero(&sin->sin_zero, sizeof sin->sin_zero);
353 if (ifa_ifwithaddr((struct sockaddr *)sin) == NULL) {
354 error = EADDRNOTAVAIL;
362 if (ntohs(lport) < IPPORT_RESERVED &&
364 priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT, 0)) {
368 if (so->so_cred->cr_uid != 0 &&
369 !IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) {
370 t = in_pcblookup_local(pcbinfo,
376 (!in_nullhost(sin->sin_addr) ||
377 !in_nullhost(t->inp_laddr) ||
378 (t->inp_socket->so_options &
379 SO_REUSEPORT) == 0) &&
380 (so->so_cred->cr_uid !=
381 t->inp_socket->so_cred->cr_uid)) {
383 if (!in_nullhost(sin->sin_addr) ||
384 !in_nullhost(t->inp_laddr) ||
386 INP_SOCKAF(t->inp_socket))
394 if (cred && !prison_replace_wildcards(td, nam)) {
395 error = EADDRNOTAVAIL;
398 t = in_pcblookup_local(pcbinfo, sin->sin_addr, lport,
400 if (t && !(reuseport & t->inp_socket->so_options)) {
402 if (!in_nullhost(sin->sin_addr) ||
403 !in_nullhost(t->inp_laddr) ||
404 INP_SOCKAF(so) == INP_SOCKAF(t->inp_socket))
412 inp->inp_laddr = sin->sin_addr;
418 jsin.sin_family = AF_INET;
419 jsin.sin_addr.s_addr = inp->inp_laddr.s_addr;
420 if (!prison_replace_wildcards(td, (struct sockaddr *)&jsin)) {
421 inp->inp_laddr.s_addr = INADDR_ANY;
425 inp->inp_laddr.s_addr = jsin.sin_addr.s_addr;
427 inp->inp_flags |= INP_ANONPORT;
429 if (inp->inp_flags & INP_HIGHPORT) {
430 first = ipport_hifirstauto; /* sysctl */
431 last = ipport_hilastauto;
432 lastport = &pcbinfo->lasthi;
433 } else if (inp->inp_flags & INP_LOWPORT) {
435 (error = priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT, 0))) {
436 inp->inp_laddr.s_addr = INADDR_ANY;
439 first = ipport_lowfirstauto; /* 1023 */
440 last = ipport_lowlastauto; /* 600 */
441 lastport = &pcbinfo->lastlow;
443 first = ipport_firstauto; /* sysctl */
444 last = ipport_lastauto;
445 lastport = &pcbinfo->lastport;
448 * Simple check to ensure all ports are not used up causing
451 * We split the two cases (up and down) so that the direction
452 * is not being tested on each round of the loop.
458 count = first - last;
461 if (count-- < 0) { /* completely used? */
462 inp->inp_laddr.s_addr = INADDR_ANY;
463 error = EADDRNOTAVAIL;
467 if (*lastport > first || *lastport < last)
469 lport = htons(*lastport);
470 } while (in_pcblookup_local(pcbinfo, inp->inp_laddr,
476 count = last - first;
479 if (count-- < 0) { /* completely used? */
480 inp->inp_laddr.s_addr = INADDR_ANY;
481 error = EADDRNOTAVAIL;
485 if (*lastport < first || *lastport > last)
487 lport = htons(*lastport);
488 } while (in_pcblookup_local(pcbinfo, inp->inp_laddr,
492 inp->inp_lport = lport;
494 jsin.sin_family = AF_INET;
495 jsin.sin_addr.s_addr = inp->inp_laddr.s_addr;
496 if (!prison_replace_wildcards(td, (struct sockaddr*)&jsin)) {
497 inp->inp_laddr.s_addr = INADDR_ANY;
502 inp->inp_laddr.s_addr = jsin.sin_addr.s_addr;
504 if (in_pcbinsporthash(inp) != 0) {
505 inp->inp_laddr.s_addr = INADDR_ANY;
512 if (pcbinfo->porttoken)
513 lwkt_reltoken(pcbinfo->porttoken);
517 static struct inpcb *
518 in_pcblookup_addrport(struct inpcbinfo *pcbinfo, struct in_addr laddr,
519 u_short lport, struct in_addr faddr, u_short fport, struct ucred *cred)
522 struct inpcbporthead *porthash;
523 struct inpcbport *phd;
524 struct inpcb *match = NULL;
527 * If the porthashbase is shared across several cpus we need
530 if (pcbinfo->porttoken)
531 lwkt_gettoken(pcbinfo->porttoken);
534 * Best fit PCB lookup.
536 * First see if this local port is in use by looking on the
539 porthash = &pcbinfo->porthashbase[
540 INP_PCBPORTHASH(lport, pcbinfo->porthashmask)];
541 LIST_FOREACH(phd, porthash, phd_hash) {
542 if (phd->phd_port == lport)
546 LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) {
548 if ((inp->inp_vflag & INP_IPV4) == 0)
551 if (inp->inp_laddr.s_addr != INADDR_ANY &&
552 inp->inp_laddr.s_addr != laddr.s_addr)
555 if (inp->inp_faddr.s_addr != INADDR_ANY &&
556 inp->inp_faddr.s_addr != faddr.s_addr)
559 if (inp->inp_fport != 0 && inp->inp_fport != fport)
564 inp->inp_socket->so_cred->cr_prison) {
570 if (pcbinfo->porttoken)
571 lwkt_reltoken(pcbinfo->porttoken);
576 in_pcbconn_bind(struct inpcb *inp, const struct sockaddr *nam,
579 struct proc *p = td->td_proc;
580 unsigned short *lastport;
581 const struct sockaddr_in *sin = (const struct sockaddr_in *)nam;
582 struct sockaddr_in jsin;
583 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
584 struct ucred *cred = NULL;
587 int count, error, dup = 0;
589 if (TAILQ_EMPTY(&in_ifaddrheads[mycpuid])) /* XXX broken! */
590 return (EADDRNOTAVAIL);
592 KKASSERT(inp->inp_laddr.s_addr != INADDR_ANY);
593 if (inp->inp_lport != 0)
594 return (EINVAL); /* already bound */
600 * This has to be atomic. If the porthash is shared across multiple
601 * protocol threads (aka tcp) then the token will be non-NULL.
603 if (pcbinfo->porttoken)
604 lwkt_gettoken(pcbinfo->porttoken);
606 jsin.sin_family = AF_INET;
607 jsin.sin_addr.s_addr = inp->inp_laddr.s_addr;
608 if (!prison_replace_wildcards(td, (struct sockaddr *)&jsin)) {
609 inp->inp_laddr.s_addr = INADDR_ANY;
613 inp->inp_laddr.s_addr = jsin.sin_addr.s_addr;
615 inp->inp_flags |= INP_ANONPORT;
617 if (inp->inp_flags & INP_HIGHPORT) {
618 first = ipport_hifirstauto; /* sysctl */
619 last = ipport_hilastauto;
620 lastport = &pcbinfo->lasthi;
621 } else if (inp->inp_flags & INP_LOWPORT) {
623 (error = priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT, 0))) {
624 inp->inp_laddr.s_addr = INADDR_ANY;
627 first = ipport_lowfirstauto; /* 1023 */
628 last = ipport_lowlastauto; /* 600 */
629 lastport = &pcbinfo->lastlow;
631 first = ipport_firstauto; /* sysctl */
632 last = ipport_lastauto;
633 lastport = &pcbinfo->lastport;
638 * Simple check to ensure all ports are not used up causing
641 * We split the two cases (up and down) so that the direction
642 * is not being tested on each round of the loop.
648 count = first - last;
651 if (count-- < 0) { /* completely used? */
652 inp->inp_laddr.s_addr = INADDR_ANY;
653 error = EADDRNOTAVAIL;
657 if (*lastport > first || *lastport < last)
659 lport = htons(*lastport);
660 } while (in_pcblookup_addrport(pcbinfo, inp->inp_laddr, lport,
661 sin->sin_addr, sin->sin_port, cred));
666 count = last - first;
669 if (count-- < 0) { /* completely used? */
670 inp->inp_laddr.s_addr = INADDR_ANY;
671 error = EADDRNOTAVAIL;
675 if (*lastport < first || *lastport > last)
677 lport = htons(*lastport);
678 } while (in_pcblookup_addrport(pcbinfo, inp->inp_laddr, lport,
679 sin->sin_addr, sin->sin_port, cred));
682 /* This could happen on loopback interface */
683 if (sin->sin_port == lport &&
684 sin->sin_addr.s_addr == inp->inp_laddr.s_addr) {
687 * Duplicate again; give up
689 inp->inp_laddr.s_addr = INADDR_ANY;
690 error = EADDRNOTAVAIL;
696 inp->inp_lport = lport;
698 jsin.sin_family = AF_INET;
699 jsin.sin_addr.s_addr = inp->inp_laddr.s_addr;
700 if (!prison_replace_wildcards(td, (struct sockaddr*)&jsin)) {
701 inp->inp_laddr.s_addr = INADDR_ANY;
706 inp->inp_laddr.s_addr = jsin.sin_addr.s_addr;
708 if (in_pcbinsporthash(inp) != 0) {
709 inp->inp_laddr.s_addr = INADDR_ANY;
716 if (pcbinfo->porttoken)
717 lwkt_reltoken(pcbinfo->porttoken);
722 * Transform old in_pcbconnect() into an inner subroutine for new
723 * in_pcbconnect(): Do some validity-checking on the remote
724 * address (in mbuf 'nam') and then determine local host address
725 * (i.e., which interface) to use to access that remote host.
727 * This preserves definition of in_pcbconnect(), while supporting a
728 * slightly different version for T/TCP. (This is more than
729 * a bit of a kludge, but cleaning up the internal interfaces would
730 * have forced minor changes in every protocol).
733 in_pcbladdr(struct inpcb *inp, struct sockaddr *nam,
734 struct sockaddr_in **plocal_sin, struct thread *td)
736 struct in_ifaddr *ia;
737 struct ucred *cred = NULL;
738 struct sockaddr_in *sin = (struct sockaddr_in *)nam;
739 struct sockaddr *jsin;
740 int jailed = 0, alloc_route = 0;
742 if (nam->sa_len != sizeof *sin)
744 if (sin->sin_family != AF_INET)
745 return (EAFNOSUPPORT);
746 if (sin->sin_port == 0)
747 return (EADDRNOTAVAIL);
748 if (td && td->td_proc && td->td_proc->p_ucred)
749 cred = td->td_proc->p_ucred;
750 if (cred && cred->cr_prison)
752 if (!TAILQ_EMPTY(&in_ifaddrheads[mycpuid])) {
753 ia = TAILQ_FIRST(&in_ifaddrheads[mycpuid])->ia;
755 * If the destination address is INADDR_ANY,
756 * use the primary local address.
757 * If the supplied address is INADDR_BROADCAST,
758 * and the primary interface supports broadcast,
759 * choose the broadcast address for that interface.
761 if (sin->sin_addr.s_addr == INADDR_ANY)
762 sin->sin_addr = IA_SIN(ia)->sin_addr;
763 else if (sin->sin_addr.s_addr == (u_long)INADDR_BROADCAST &&
764 (ia->ia_ifp->if_flags & IFF_BROADCAST))
765 sin->sin_addr = satosin(&ia->ia_broadaddr)->sin_addr;
767 if (inp->inp_laddr.s_addr == INADDR_ANY) {
772 * If route is known or can be allocated now,
773 * our src addr is taken from the i/f, else punt.
774 * Note that we should check the address family of the cached
775 * destination, in case of sharing the cache with IPv6.
777 ro = &inp->inp_route;
779 (!(ro->ro_rt->rt_flags & RTF_UP) ||
780 ro->ro_dst.sa_family != AF_INET ||
781 satosin(&ro->ro_dst)->sin_addr.s_addr !=
782 sin->sin_addr.s_addr ||
783 inp->inp_socket->so_options & SO_DONTROUTE)) {
787 if (!(inp->inp_socket->so_options & SO_DONTROUTE) && /*XXX*/
788 (ro->ro_rt == NULL ||
789 ro->ro_rt->rt_ifp == NULL)) {
790 /* No route yet, so try to acquire one */
791 bzero(&ro->ro_dst, sizeof(struct sockaddr_in));
792 ro->ro_dst.sa_family = AF_INET;
793 ro->ro_dst.sa_len = sizeof(struct sockaddr_in);
794 ((struct sockaddr_in *) &ro->ro_dst)->sin_addr =
800 * If we found a route, use the address
801 * corresponding to the outgoing interface
802 * unless it is the loopback (in case a route
803 * to our address on another net goes to loopback).
805 if (ro->ro_rt && !(ro->ro_rt->rt_ifp->if_flags & IFF_LOOPBACK)) {
807 if (jailed_ip(cred->cr_prison,
808 ro->ro_rt->rt_ifa->ifa_addr)) {
809 ia = ifatoia(ro->ro_rt->rt_ifa);
812 ia = ifatoia(ro->ro_rt->rt_ifa);
816 u_short fport = sin->sin_port;
819 ia = ifatoia(ifa_ifwithdstaddr(sintosa(sin)));
820 if (ia && jailed && !jailed_ip(cred->cr_prison,
821 sintosa(&ia->ia_addr)))
824 ia = ifatoia(ifa_ifwithnet(sintosa(sin)));
825 if (ia && jailed && !jailed_ip(cred->cr_prison,
826 sintosa(&ia->ia_addr)))
828 sin->sin_port = fport;
830 !TAILQ_EMPTY(&in_ifaddrheads[mycpuid]))
831 ia = TAILQ_FIRST(&in_ifaddrheads[mycpuid])->ia;
832 if (ia && jailed && !jailed_ip(cred->cr_prison,
833 sintosa(&ia->ia_addr)))
836 if (!jailed && ia == NULL)
840 * If the destination address is multicast and an outgoing
841 * interface has been set as a multicast option, use the
842 * address of that interface as our source address.
844 if (!jailed && IN_MULTICAST(ntohl(sin->sin_addr.s_addr)) &&
845 inp->inp_moptions != NULL) {
846 struct ip_moptions *imo;
849 imo = inp->inp_moptions;
850 if (imo->imo_multicast_ifp != NULL) {
851 struct in_ifaddr_container *iac;
853 ifp = imo->imo_multicast_ifp;
856 &in_ifaddrheads[mycpuid], ia_link) {
857 if (iac->ia->ia_ifp == ifp) {
867 * Don't do pcblookup call here; return interface in plocal_sin
868 * and exit to caller, that will do the lookup.
870 if (ia == NULL && jailed) {
871 if ((jsin = prison_get_nonlocal(cred->cr_prison, AF_INET, NULL)) != NULL ||
872 (jsin = prison_get_local(cred->cr_prison, AF_INET, NULL)) != NULL) {
873 *plocal_sin = satosin(jsin);
879 *plocal_sin = &ia->ia_addr;
885 struct route *ro = &inp->inp_route;
887 if (ro->ro_rt != NULL)
889 bzero(ro, sizeof(*ro));
891 return (EADDRNOTAVAIL);
896 * Connect from a socket to a specified address.
897 * Both address and port must be specified in argument sin.
898 * If don't have a local address for this socket yet,
902 in_pcbconnect(struct inpcb *inp, struct sockaddr *nam, struct thread *td)
904 struct sockaddr_in *if_sin;
905 struct sockaddr_in *sin = (struct sockaddr_in *)nam;
908 /* Call inner routine to assign local interface address. */
909 if ((error = in_pcbladdr(inp, nam, &if_sin, td)) != 0)
912 if (in_pcblookup_hash(inp->inp_cpcbinfo, sin->sin_addr, sin->sin_port,
913 inp->inp_laddr.s_addr ?
914 inp->inp_laddr : if_sin->sin_addr,
915 inp->inp_lport, FALSE, NULL) != NULL) {
918 if (inp->inp_laddr.s_addr == INADDR_ANY) {
919 if (inp->inp_lport == 0) {
920 error = in_pcbbind(inp, NULL, td);
924 inp->inp_laddr = if_sin->sin_addr;
926 inp->inp_faddr = sin->sin_addr;
927 inp->inp_fport = sin->sin_port;
928 in_pcbinsconnhash(inp);
933 in_pcbdisconnect(struct inpcb *inp)
936 inp->inp_faddr.s_addr = INADDR_ANY;
938 in_pcbremconnhash(inp);
939 if (inp->inp_socket->so_state & SS_NOFDREF)
944 in_pcbdetach(struct inpcb *inp)
946 struct socket *so = inp->inp_socket;
947 struct inpcbinfo *ipi = inp->inp_pcbinfo;
950 ipsec4_delete_pcbpolicy(inp);
952 inp->inp_gencnt = ++ipi->ipi_gencnt;
953 KKASSERT((so->so_state & SS_ASSERTINPROG) == 0);
956 sofree(so); /* remove pcb ref */
957 if (inp->inp_options)
958 m_free(inp->inp_options);
959 if (inp->inp_route.ro_rt)
960 rtfree(inp->inp_route.ro_rt);
961 ip_freemoptions(inp->inp_moptions);
967 * The calling convention of in_setsockaddr() and in_setpeeraddr() was
968 * modified to match the pru_sockaddr() and pru_peeraddr() entry points
969 * in struct pr_usrreqs, so that protocols can just reference then directly
970 * without the need for a wrapper function. The socket must have a valid
971 * (i.e., non-nil) PCB, but it should be impossible to get an invalid one
972 * except through a kernel programming error, so it is acceptable to panic
973 * (or in this case trap) if the PCB is invalid. (Actually, we don't trap
974 * because there actually /is/ a programming error somewhere... XXX)
977 in_setsockaddr(struct socket *so, struct sockaddr **nam)
980 struct sockaddr_in *sin;
983 * Do the malloc first in case it blocks.
985 sin = kmalloc(sizeof *sin, M_SONAME, M_WAITOK | M_ZERO);
986 sin->sin_family = AF_INET;
987 sin->sin_len = sizeof *sin;
993 kfree(sin, M_SONAME);
996 sin->sin_port = inp->inp_lport;
997 sin->sin_addr = inp->inp_laddr;
1000 *nam = (struct sockaddr *)sin;
1005 in_setsockaddr_dispatch(netmsg_t msg)
1009 error = in_setsockaddr(msg->base.nm_so, msg->peeraddr.nm_nam);
1010 lwkt_replymsg(&msg->lmsg, error);
1014 in_setpeeraddr(struct socket *so, struct sockaddr **nam)
1017 struct sockaddr_in *sin;
1020 * Do the malloc first in case it blocks.
1022 sin = kmalloc(sizeof *sin, M_SONAME, M_WAITOK | M_ZERO);
1023 sin->sin_family = AF_INET;
1024 sin->sin_len = sizeof *sin;
1030 kfree(sin, M_SONAME);
1031 return (ECONNRESET);
1033 sin->sin_port = inp->inp_fport;
1034 sin->sin_addr = inp->inp_faddr;
1037 *nam = (struct sockaddr *)sin;
1042 in_setpeeraddr_dispatch(netmsg_t msg)
1046 error = in_setpeeraddr(msg->base.nm_so, msg->peeraddr.nm_nam);
1047 lwkt_replymsg(&msg->lmsg, error);
1051 in_pcbnotifyall(struct inpcbhead *head, struct in_addr faddr, int err,
1052 void (*notify)(struct inpcb *, int))
1054 struct inpcb *inp, *ninp;
1057 * note: if INP_PLACEMARKER is set we must ignore the rest of
1058 * the structure and skip it.
1061 LIST_FOREACH_MUTABLE(inp, head, inp_list, ninp) {
1062 if (inp->inp_flags & INP_PLACEMARKER)
1065 if (!(inp->inp_vflag & INP_IPV4))
1068 if (inp->inp_faddr.s_addr != faddr.s_addr ||
1069 inp->inp_socket == NULL)
1071 (*notify)(inp, err); /* can remove inp from list! */
1077 in_pcbpurgeif0(struct inpcb *head, struct ifnet *ifp)
1080 struct ip_moptions *imo;
1083 for (inp = head; inp != NULL; inp = LIST_NEXT(inp, inp_list)) {
1084 if (inp->inp_flags & INP_PLACEMARKER)
1086 imo = inp->inp_moptions;
1087 if ((inp->inp_vflag & INP_IPV4) && imo != NULL) {
1089 * Unselect the outgoing interface if it is being
1092 if (imo->imo_multicast_ifp == ifp)
1093 imo->imo_multicast_ifp = NULL;
1096 * Drop multicast group membership if we joined
1097 * through the interface being detached.
1099 for (i = 0, gap = 0; i < imo->imo_num_memberships;
1101 if (imo->imo_membership[i]->inm_ifp == ifp) {
1102 in_delmulti(imo->imo_membership[i]);
1104 } else if (gap != 0)
1105 imo->imo_membership[i - gap] =
1106 imo->imo_membership[i];
1108 imo->imo_num_memberships -= gap;
1114 * Check for alternatives when higher level complains
1115 * about service problems. For now, invalidate cached
1116 * routing information. If the route was created dynamically
1117 * (by a redirect), time to try a default gateway again.
1120 in_losing(struct inpcb *inp)
1123 struct rt_addrinfo rtinfo;
1125 if ((rt = inp->inp_route.ro_rt)) {
1126 bzero(&rtinfo, sizeof(struct rt_addrinfo));
1127 rtinfo.rti_info[RTAX_DST] = rt_key(rt);
1128 rtinfo.rti_info[RTAX_GATEWAY] = rt->rt_gateway;
1129 rtinfo.rti_info[RTAX_NETMASK] = rt_mask(rt);
1130 rtinfo.rti_flags = rt->rt_flags;
1131 rt_missmsg(RTM_LOSING, &rtinfo, rt->rt_flags, 0);
1132 if (rt->rt_flags & RTF_DYNAMIC)
1133 rtrequest1_global(RTM_DELETE, &rtinfo, NULL, NULL);
1134 inp->inp_route.ro_rt = NULL;
1137 * A new route can be allocated
1138 * the next time output is attempted.
1144 * After a routing change, flush old routing
1145 * and allocate a (hopefully) better one.
1148 in_rtchange(struct inpcb *inp, int err)
1150 if (inp->inp_route.ro_rt) {
1151 rtfree(inp->inp_route.ro_rt);
1152 inp->inp_route.ro_rt = NULL;
1154 * A new route can be allocated the next time
1155 * output is attempted.
1161 * Lookup a PCB based on the local address and port.
1164 in_pcblookup_local(struct inpcbinfo *pcbinfo, struct in_addr laddr,
1165 u_int lport_arg, int wild_okay, struct ucred *cred)
1168 int matchwild = 3, wildcard;
1169 u_short lport = lport_arg;
1170 struct inpcbporthead *porthash;
1171 struct inpcbport *phd;
1172 struct inpcb *match = NULL;
1175 * If the porthashbase is shared across several cpus we need
1178 if (pcbinfo->porttoken)
1179 lwkt_gettoken(pcbinfo->porttoken);
1182 * Best fit PCB lookup.
1184 * First see if this local port is in use by looking on the
1187 porthash = &pcbinfo->porthashbase[
1188 INP_PCBPORTHASH(lport, pcbinfo->porthashmask)];
1189 LIST_FOREACH(phd, porthash, phd_hash) {
1190 if (phd->phd_port == lport)
1195 * Port is in use by one or more PCBs. Look for best
1198 LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) {
1201 if ((inp->inp_vflag & INP_IPV4) == 0)
1204 if (inp->inp_faddr.s_addr != INADDR_ANY)
1206 if (inp->inp_laddr.s_addr != INADDR_ANY) {
1207 if (laddr.s_addr == INADDR_ANY)
1209 else if (inp->inp_laddr.s_addr != laddr.s_addr)
1212 if (laddr.s_addr != INADDR_ANY)
1215 if (wildcard && !wild_okay)
1217 if (wildcard < matchwild &&
1220 inp->inp_socket->so_cred->cr_prison)) {
1222 matchwild = wildcard;
1223 if (matchwild == 0) {
1229 if (pcbinfo->porttoken)
1230 lwkt_reltoken(pcbinfo->porttoken);
1235 * Lookup PCB in hash list.
1238 in_pcblookup_hash(struct inpcbinfo *pcbinfo, struct in_addr faddr,
1239 u_int fport_arg, struct in_addr laddr, u_int lport_arg,
1240 boolean_t wildcard, struct ifnet *ifp)
1242 struct inpcbhead *head;
1243 struct inpcb *inp, *jinp=NULL;
1244 u_short fport = fport_arg, lport = lport_arg;
1247 * First look for an exact match.
1249 head = &pcbinfo->hashbase[INP_PCBCONNHASH(faddr.s_addr, fport,
1250 laddr.s_addr, lport, pcbinfo->hashmask)];
1251 LIST_FOREACH(inp, head, inp_hash) {
1253 if (!(inp->inp_vflag & INP_IPV4))
1256 if (in_hosteq(inp->inp_faddr, faddr) &&
1257 in_hosteq(inp->inp_laddr, laddr) &&
1258 inp->inp_fport == fport && inp->inp_lport == lport) {
1260 if (inp->inp_socket == NULL ||
1261 inp->inp_socket->so_cred->cr_prison == NULL) {
1272 struct inpcb *local_wild = NULL;
1273 struct inpcb *jinp_wild = NULL;
1275 struct inpcb *local_wild_mapped = NULL;
1277 struct inpcontainer *ic;
1278 struct inpcontainerhead *chead;
1279 struct sockaddr_in jsin;
1283 * Order of socket selection:
1284 * 1. non-jailed, non-wild.
1285 * 2. non-jailed, wild.
1286 * 3. jailed, non-wild.
1289 jsin.sin_family = AF_INET;
1290 chead = &pcbinfo->wildcardhashbase[
1291 INP_PCBWILDCARDHASH(lport, pcbinfo->wildcardhashmask)];
1292 LIST_FOREACH(ic, chead, ic_list) {
1294 jsin.sin_addr.s_addr = laddr.s_addr;
1296 if (!(inp->inp_vflag & INP_IPV4))
1299 if (inp->inp_socket != NULL)
1300 cred = inp->inp_socket->so_cred;
1303 if (cred != NULL && jailed(cred)) {
1307 if (!jailed_ip(cred->cr_prison,
1308 (struct sockaddr *)&jsin))
1311 if (inp->inp_lport == lport) {
1312 if (ifp && ifp->if_type == IFT_FAITH &&
1313 !(inp->inp_flags & INP_FAITH))
1315 if (inp->inp_laddr.s_addr == laddr.s_addr) {
1316 if (cred != NULL && jailed(cred))
1321 if (inp->inp_laddr.s_addr == INADDR_ANY) {
1323 if (INP_CHECK_SOCKAF(inp->inp_socket,
1325 local_wild_mapped = inp;
1336 if (local_wild != NULL)
1337 return (local_wild);
1339 if (local_wild_mapped != NULL)
1340 return (local_wild_mapped);
1354 * Insert PCB into connection hash table.
1357 in_pcbinsconnhash(struct inpcb *inp)
1359 struct inpcbinfo *pcbinfo = inp->inp_cpcbinfo;
1360 struct inpcbhead *bucket;
1361 u_int32_t hashkey_faddr, hashkey_laddr;
1364 if (inp->inp_vflag & INP_IPV6) {
1365 hashkey_faddr = inp->in6p_faddr.s6_addr32[3] /* XXX JH */;
1366 hashkey_laddr = inp->in6p_laddr.s6_addr32[3] /* XXX JH */;
1369 hashkey_faddr = inp->inp_faddr.s_addr;
1370 hashkey_laddr = inp->inp_laddr.s_addr;
1375 KASSERT(!(inp->inp_flags & INP_WILDCARD),
1376 ("already on wildcardhash\n"));
1377 KASSERT(!(inp->inp_flags & INP_CONNECTED),
1378 ("already on connhash\n"));
1379 inp->inp_flags |= INP_CONNECTED;
1382 * Insert into the connection hash table.
1384 bucket = &pcbinfo->hashbase[INP_PCBCONNHASH(hashkey_faddr,
1385 inp->inp_fport, hashkey_laddr, inp->inp_lport, pcbinfo->hashmask)];
1386 LIST_INSERT_HEAD(bucket, inp, inp_hash);
1390 * Remove PCB from connection hash table.
1393 in_pcbremconnhash(struct inpcb *inp)
1395 KASSERT(inp->inp_flags & INP_CONNECTED, ("inp not connected"));
1396 LIST_REMOVE(inp, inp_hash);
1397 inp->inp_flags &= ~INP_CONNECTED;
1401 * Insert PCB into port hash table.
1404 in_pcbinsporthash(struct inpcb *inp)
1406 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
1407 struct inpcbporthead *pcbporthash;
1408 struct inpcbport *phd;
1411 * If the porthashbase is shared across several cpus we need
1414 if (pcbinfo->porttoken)
1415 lwkt_gettoken(pcbinfo->porttoken);
1418 * Insert into the port hash table.
1420 pcbporthash = &pcbinfo->porthashbase[
1421 INP_PCBPORTHASH(inp->inp_lport, pcbinfo->porthashmask)];
1423 /* Go through port list and look for a head for this lport. */
1424 LIST_FOREACH(phd, pcbporthash, phd_hash) {
1425 if (phd->phd_port == inp->inp_lport)
1429 /* If none exists, malloc one and tack it on. */
1431 KKASSERT(pcbinfo->portsave != NULL);
1432 phd = pcbinfo->portsave;
1433 pcbinfo->portsave = NULL;
1434 phd->phd_port = inp->inp_lport;
1435 LIST_INIT(&phd->phd_pcblist);
1436 LIST_INSERT_HEAD(pcbporthash, phd, phd_hash);
1440 LIST_INSERT_HEAD(&phd->phd_pcblist, inp, inp_portlist);
1442 if (pcbinfo->porttoken)
1443 lwkt_reltoken(pcbinfo->porttoken);
1444 if (pcbinfo->portsave == NULL) {
1445 pcbinfo->portsave = kmalloc(sizeof(*pcbinfo->portsave),
1446 M_PCB, M_INTWAIT | M_ZERO);
1452 in_pcbinswildcardhash_oncpu(struct inpcb *inp, struct inpcbinfo *pcbinfo)
1454 struct inpcontainer *ic;
1455 struct inpcontainerhead *bucket;
1457 bucket = &pcbinfo->wildcardhashbase[
1458 INP_PCBWILDCARDHASH(inp->inp_lport, pcbinfo->wildcardhashmask)];
1460 ic = kmalloc(sizeof(struct inpcontainer), M_TEMP, M_INTWAIT);
1462 LIST_INSERT_HEAD(bucket, ic, ic_list);
1466 * Insert PCB into wildcard hash table.
1469 in_pcbinswildcardhash(struct inpcb *inp)
1471 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
1473 KASSERT(!(inp->inp_flags & INP_CONNECTED),
1474 ("already on connhash\n"));
1475 KASSERT(!(inp->inp_flags & INP_WILDCARD),
1476 ("already on wildcardhash\n"));
1477 inp->inp_flags |= INP_WILDCARD;
1479 in_pcbinswildcardhash_oncpu(inp, pcbinfo);
1483 in_pcbremwildcardhash_oncpu(struct inpcb *inp, struct inpcbinfo *pcbinfo)
1485 struct inpcontainer *ic;
1486 struct inpcontainerhead *head;
1489 head = &pcbinfo->wildcardhashbase[
1490 INP_PCBWILDCARDHASH(inp->inp_lport, pcbinfo->wildcardhashmask)];
1492 LIST_FOREACH(ic, head, ic_list) {
1493 if (ic->ic_inp == inp)
1496 return; /* not found! */
1499 LIST_REMOVE(ic, ic_list); /* remove container from bucket chain */
1500 kfree(ic, M_TEMP); /* deallocate container */
1504 * Remove PCB from wildcard hash table.
1507 in_pcbremwildcardhash(struct inpcb *inp)
1509 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
1511 KASSERT(inp->inp_flags & INP_WILDCARD, ("inp not wildcard"));
1512 in_pcbremwildcardhash_oncpu(inp, pcbinfo);
1513 inp->inp_flags &= ~INP_WILDCARD;
1517 * Remove PCB from various lists.
1520 in_pcbremlists(struct inpcb *inp)
1522 struct inpcbinfo *pcbinfo;
1524 if (inp->inp_lport) {
1525 struct inpcbport *phd;
1527 pcbinfo = inp->inp_pcbinfo;
1528 if (pcbinfo->porttoken)
1529 lwkt_gettoken(pcbinfo->porttoken);
1532 LIST_REMOVE(inp, inp_portlist);
1533 if (LIST_FIRST(&phd->phd_pcblist) == NULL) {
1534 LIST_REMOVE(phd, phd_hash);
1537 if (pcbinfo->porttoken)
1538 lwkt_reltoken(pcbinfo->porttoken);
1540 if (inp->inp_flags & INP_WILDCARD) {
1541 in_pcbremwildcardhash(inp);
1542 } else if (inp->inp_flags & INP_CONNECTED) {
1543 in_pcbremconnhash(inp);
1545 LIST_REMOVE(inp, inp_list);
1546 inp->inp_pcbinfo->ipi_count--;
1550 prison_xinpcb(struct thread *td, struct inpcb *inp)
1554 if (td->td_proc == NULL)
1556 cr = td->td_proc->p_ucred;
1557 if (cr->cr_prison == NULL)
1559 if (inp->inp_socket && inp->inp_socket->so_cred &&
1560 inp->inp_socket->so_cred->cr_prison &&
1561 cr->cr_prison == inp->inp_socket->so_cred->cr_prison)
1567 in_pcblist_global(SYSCTL_HANDLER_ARGS)
1569 struct inpcbinfo *pcbinfo = arg1;
1570 struct inpcb *inp, *marker;
1575 * The process of preparing the TCB list is too time-consuming and
1576 * resource-intensive to repeat twice on every request.
1578 if (req->oldptr == NULL) {
1579 n = pcbinfo->ipi_count;
1580 req->oldidx = (n + n/8 + 10) * sizeof(struct xinpcb);
1584 if (req->newptr != NULL)
1588 * OK, now we're committed to doing something. Re-fetch ipi_count
1589 * after obtaining the generation count.
1591 n = pcbinfo->ipi_count;
1593 marker = kmalloc(sizeof(struct inpcb), M_TEMP, M_WAITOK|M_ZERO);
1594 marker->inp_flags |= INP_PLACEMARKER;
1595 LIST_INSERT_HEAD(&pcbinfo->pcblisthead, marker, inp_list);
1600 while ((inp = LIST_NEXT(marker, inp_list)) != NULL && i < n) {
1601 LIST_REMOVE(marker, inp_list);
1602 LIST_INSERT_AFTER(inp, marker, inp_list);
1604 if (inp->inp_flags & INP_PLACEMARKER)
1606 if (prison_xinpcb(req->td, inp))
1608 bzero(&xi, sizeof xi);
1609 xi.xi_len = sizeof xi;
1610 bcopy(inp, &xi.xi_inp, sizeof *inp);
1611 if (inp->inp_socket)
1612 sotoxsocket(inp->inp_socket, &xi.xi_socket);
1613 if ((error = SYSCTL_OUT(req, &xi, sizeof xi)) != 0)
1617 LIST_REMOVE(marker, inp_list);
1618 if (error == 0 && i < n) {
1619 bzero(&xi, sizeof xi);
1620 xi.xi_len = sizeof xi;
1622 error = SYSCTL_OUT(req, &xi, sizeof xi);
1626 kfree(marker, M_TEMP);
1631 in_pcblist_global_nomarker(SYSCTL_HANDLER_ARGS, struct xinpcb **xi0, int *nxi0)
1633 struct inpcbinfo *pcbinfo = arg1;
1642 * The process of preparing the PCB list is too time-consuming and
1643 * resource-intensive to repeat twice on every request.
1645 if (req->oldptr == NULL) {
1646 int n = pcbinfo->ipi_count;
1648 req->oldidx = (n + n/8 + 10) * sizeof(struct xinpcb);
1652 if (req->newptr != NULL)
1655 if (pcbinfo->ipi_count == 0)
1659 xi = kmalloc(pcbinfo->ipi_count * sizeof(*xi), M_TEMP,
1660 M_WAITOK | M_ZERO | M_NULLOK);
1664 LIST_FOREACH(inp, &pcbinfo->pcblisthead, inp_list) {
1665 struct xinpcb *xi_ptr = &xi[nxi];
1667 if (prison_xinpcb(req->td, inp))
1670 xi_ptr->xi_len = sizeof(*xi_ptr);
1671 bcopy(inp, &xi_ptr->xi_inp, sizeof(*inp));
1672 if (inp->inp_socket)
1673 sotoxsocket(inp->inp_socket, &xi_ptr->xi_socket);
1689 in_savefaddr(struct socket *so, const struct sockaddr *faddr)
1691 struct sockaddr_in *sin;
1693 KASSERT(faddr->sa_family == AF_INET,
1694 ("not AF_INET faddr %d\n", faddr->sa_family));
1696 sin = kmalloc(sizeof(*sin), M_SONAME, M_WAITOK | M_ZERO);
1697 sin->sin_family = AF_INET;
1698 sin->sin_len = sizeof(*sin);
1699 sin->sin_port = ((const struct sockaddr_in *)faddr)->sin_port;
1700 sin->sin_addr = ((const struct sockaddr_in *)faddr)->sin_addr;
1702 so->so_faddr = (struct sockaddr *)sin;