in6_pcb.c revision 169462
162587Sitojun/* $FreeBSD: head/sys/netinet6/in6_pcb.c 169462 2007-05-11 10:20:51Z rwatson $ */ 278064Sume/* $KAME: in6_pcb.c,v 1.31 2001/05/21 05:45:10 jinmei Exp $ */ 362587Sitojun 4139826Simp/*- 553541Sshin * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 653541Sshin * All rights reserved. 753541Sshin * 853541Sshin * Redistribution and use in source and binary forms, with or without 953541Sshin * modification, are permitted provided that the following conditions 1053541Sshin * are met: 1153541Sshin * 1. Redistributions of source code must retain the above copyright 1253541Sshin * notice, this list of conditions and the following disclaimer. 1353541Sshin * 2. Redistributions in binary form must reproduce the above copyright 1453541Sshin * notice, this list of conditions and the following disclaimer in the 1553541Sshin * documentation and/or other materials provided with the distribution. 1653541Sshin * 3. Neither the name of the project nor the names of its contributors 1753541Sshin * may be used to endorse or promote products derived from this software 1853541Sshin * without specific prior written permission. 1953541Sshin * 2053541Sshin * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 2153541Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2253541Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2353541Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 2453541Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2553541Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2653541Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2753541Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2853541Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2953541Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3053541Sshin * SUCH DAMAGE. 3153541Sshin * 3253541Sshin */ 3353541Sshin 34139826Simp/*- 3553541Sshin * Copyright (c) 1982, 1986, 1991, 1993 3653541Sshin * The Regents of the University of California. All rights reserved. 3753541Sshin * 3853541Sshin * Redistribution and use in source and binary forms, with or without 3953541Sshin * modification, are permitted provided that the following conditions 4053541Sshin * are met: 4153541Sshin * 1. Redistributions of source code must retain the above copyright 4253541Sshin * notice, this list of conditions and the following disclaimer. 4353541Sshin * 2. Redistributions in binary form must reproduce the above copyright 4453541Sshin * notice, this list of conditions and the following disclaimer in the 4553541Sshin * documentation and/or other materials provided with the distribution. 4653541Sshin * 4. Neither the name of the University nor the names of its contributors 4753541Sshin * may be used to endorse or promote products derived from this software 4853541Sshin * without specific prior written permission. 4953541Sshin * 5053541Sshin * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 5153541Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 5253541Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 5353541Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 5453541Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 5553541Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 5653541Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 5753541Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 5853541Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5953541Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 6053541Sshin * SUCH DAMAGE. 6153541Sshin * 6253541Sshin * @(#)in_pcb.c 8.2 (Berkeley) 1/4/94 6353541Sshin */ 6453541Sshin 6578064Sume#include "opt_inet.h" 6678064Sume#include "opt_inet6.h" 6755009Sshin#include "opt_ipsec.h" 6853541Sshin 6953541Sshin#include <sys/param.h> 7053541Sshin#include <sys/systm.h> 7153541Sshin#include <sys/malloc.h> 7253541Sshin#include <sys/mbuf.h> 7355679Sshin#include <sys/domain.h> 7453541Sshin#include <sys/protosw.h> 7553541Sshin#include <sys/socket.h> 7653541Sshin#include <sys/socketvar.h> 7753541Sshin#include <sys/sockio.h> 7853541Sshin#include <sys/errno.h> 7953541Sshin#include <sys/time.h> 80164033Srwatson#include <sys/priv.h> 8153541Sshin#include <sys/proc.h> 8253541Sshin#include <sys/jail.h> 8353541Sshin 8492767Sjeff#include <vm/uma.h> 8553541Sshin 8653541Sshin#include <net/if.h> 8753541Sshin#include <net/if_types.h> 8853541Sshin#include <net/route.h> 8953541Sshin 9053541Sshin#include <netinet/in.h> 9153541Sshin#include <netinet/in_var.h> 9253541Sshin#include <netinet/in_systm.h> 9398102Shsu#include <netinet/tcp_var.h> 9462587Sitojun#include <netinet/ip6.h> 9555679Sshin#include <netinet/ip_var.h> 9653541Sshin#include <netinet6/ip6_var.h> 9753541Sshin#include <netinet6/nd6.h> 9853541Sshin#include <netinet/in_pcb.h> 9953541Sshin#include <netinet6/in6_pcb.h> 100148385Sume#include <netinet6/scope6_var.h> 10153541Sshin 10253541Sshin#ifdef IPSEC 10353541Sshin#include <netinet6/ipsec.h> 10478064Sume#ifdef INET6 10578064Sume#include <netinet6/ipsec6.h> 10678064Sume#endif 10755009Sshin#include <netinet6/ah.h> 10878064Sume#ifdef INET6 10955009Sshin#include <netinet6/ah6.h> 11078064Sume#endif 11153541Sshin#include <netkey/key.h> 11253541Sshin#endif /* IPSEC */ 11353541Sshin 114105199Ssam#ifdef FAST_IPSEC 115105199Ssam#include <netipsec/ipsec.h> 116105199Ssam#include <netipsec/ipsec6.h> 117105199Ssam#include <netipsec/key.h> 118105199Ssam#endif /* FAST_IPSEC */ 119105199Ssam 12053541Sshinstruct in6_addr zeroin6_addr; 12153541Sshin 12253541Sshinint 123127505Spjdin6_pcbbind(inp, nam, cred) 12453541Sshin register struct inpcb *inp; 12553541Sshin struct sockaddr *nam; 126127505Spjd struct ucred *cred; 12753541Sshin{ 12853541Sshin struct socket *so = inp->inp_socket; 12953541Sshin struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)NULL; 13053541Sshin struct inpcbinfo *pcbinfo = inp->inp_pcbinfo; 13153541Sshin u_short lport = 0; 13297658Stanimura int wild = 0, reuseport = (so->so_options & SO_REUSEPORT); 13353541Sshin 134132714Srwatson INP_INFO_WLOCK_ASSERT(pcbinfo); 135132714Srwatson INP_LOCK_ASSERT(inp); 136132714Srwatson 13753541Sshin if (!in6_ifaddr) /* XXX broken! */ 13853541Sshin return (EADDRNOTAVAIL); 13953541Sshin if (inp->inp_lport || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 140120856Sume return (EINVAL); 14153541Sshin if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT)) == 0) 142160024Sbz wild = INPLOOKUP_WILDCARD; 14353541Sshin if (nam) { 144148385Sume int error; 145148385Sume 14653541Sshin sin6 = (struct sockaddr_in6 *)nam; 14753541Sshin if (nam->sa_len != sizeof(*sin6)) 148120856Sume return (EINVAL); 14953541Sshin /* 15053541Sshin * family check. 15153541Sshin */ 15253541Sshin if (nam->sa_family != AF_INET6) 153120856Sume return (EAFNOSUPPORT); 15453541Sshin 155148385Sume if ((error = sa6_embedscope(sin6, ip6_use_defzone)) != 0) 156148385Sume return(error); 15753541Sshin 15853541Sshin lport = sin6->sin6_port; 15953541Sshin if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) { 16053541Sshin /* 16153541Sshin * Treat SO_REUSEADDR as SO_REUSEPORT for multicast; 16253541Sshin * allow compepte duplication of binding if 16353541Sshin * SO_REUSEPORT is set, or if SO_REUSEADDR is set 16453541Sshin * and a multicast address is bound on both 16553541Sshin * new and duplicated sockets. 16653541Sshin */ 16753541Sshin if (so->so_options & SO_REUSEADDR) 16853541Sshin reuseport = SO_REUSEADDR|SO_REUSEPORT; 16953541Sshin } else if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 17053541Sshin struct ifaddr *ia = NULL; 17153541Sshin 17253541Sshin sin6->sin6_port = 0; /* yech... */ 17353541Sshin if ((ia = ifa_ifwithaddr((struct sockaddr *)sin6)) == 0) 174120856Sume return (EADDRNOTAVAIL); 17553541Sshin 17653541Sshin /* 17753541Sshin * XXX: bind to an anycast address might accidentally 17853541Sshin * cause sending a packet with anycast source address. 17978064Sume * We should allow to bind to a deprecated address, since 180120913Sume * the application dares to use it. 18153541Sshin */ 18253541Sshin if (ia && 18353541Sshin ((struct in6_ifaddr *)ia)->ia6_flags & 18478064Sume (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|IN6_IFF_DETACHED)) { 185120856Sume return (EADDRNOTAVAIL); 18653541Sshin } 18753541Sshin } 18853541Sshin if (lport) { 18953541Sshin struct inpcb *t; 19053541Sshin 19153541Sshin /* GROSS */ 192156877Sdwmalone if (ntohs(lport) <= ipport_reservedhigh && 193156877Sdwmalone ntohs(lport) >= ipport_reservedlow && 194164033Srwatson priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT, 195164033Srwatson SUSER_ALLOWJAIL)) 196120856Sume return (EACCES); 197159976Spjd if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr) && 198168932Srwatson priv_check_cred(so->so_cred, 199168932Srwatson PRIV_NETINET_REUSEPORT, SUSER_ALLOWJAIL) != 0) { 20055679Sshin t = in6_pcblookup_local(pcbinfo, 20153541Sshin &sin6->sin6_addr, lport, 20253541Sshin INPLOOKUP_WILDCARD); 203132699Syar if (t && 204132699Syar ((t->inp_vflag & INP_TIMEWAIT) == 0) && 205132699Syar (so->so_type != SOCK_STREAM || 206132699Syar IN6_IS_ADDR_UNSPECIFIED(&t->in6p_faddr)) && 20797658Stanimura (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) || 208116453Scognet !IN6_IS_ADDR_UNSPECIFIED(&t->in6p_laddr) || 209116453Scognet (t->inp_socket->so_options & SO_REUSEPORT) 210116453Scognet == 0) && (so->so_cred->cr_uid != 21197658Stanimura t->inp_socket->so_cred->cr_uid)) 21297658Stanimura return (EADDRINUSE); 21378064Sume if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 && 21455679Sshin IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 21555679Sshin struct sockaddr_in sin; 21655679Sshin 21755679Sshin in6_sin6_2_sin(&sin, sin6); 21855679Sshin t = in_pcblookup_local(pcbinfo, 21955679Sshin sin.sin_addr, lport, 22055679Sshin INPLOOKUP_WILDCARD); 221132699Syar if (t && 222132699Syar ((t->inp_vflag & 223132699Syar INP_TIMEWAIT) == 0) && 224132699Syar (so->so_type != SOCK_STREAM || 225132699Syar ntohl(t->inp_faddr.s_addr) == 226132699Syar INADDR_ANY) && 22755679Sshin (so->so_cred->cr_uid != 228132794Syar t->inp_socket->so_cred->cr_uid)) 22955679Sshin return (EADDRINUSE); 23055679Sshin } 23153541Sshin } 23253541Sshin t = in6_pcblookup_local(pcbinfo, &sin6->sin6_addr, 23353541Sshin lport, wild); 234116453Scognet if (t && (reuseport & ((t->inp_vflag & INP_TIMEWAIT) ? 235116453Scognet intotw(t)->tw_so_options : 236116453Scognet t->inp_socket->so_options)) == 0) 237120856Sume return (EADDRINUSE); 23878064Sume if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 && 23955679Sshin IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 24055679Sshin struct sockaddr_in sin; 24155679Sshin 24255679Sshin in6_sin6_2_sin(&sin, sin6); 24355679Sshin t = in_pcblookup_local(pcbinfo, sin.sin_addr, 24455679Sshin lport, wild); 245116453Scognet if (t && t->inp_vflag & INP_TIMEWAIT) { 246116453Scognet if ((reuseport & 247116453Scognet intotw(t)->tw_so_options) == 0 && 248116453Scognet (ntohl(t->inp_laddr.s_addr) != 249116453Scognet INADDR_ANY || ((inp->inp_vflag & 250116453Scognet INP_IPV6PROTO) == 251116453Scognet (t->inp_vflag & INP_IPV6PROTO)))) 252116453Scognet return (EADDRINUSE); 253116453Scognet } 254116453Scognet else if (t && 255116453Scognet (reuseport & t->inp_socket->so_options) 256116453Scognet == 0 && (ntohl(t->inp_laddr.s_addr) != 257116453Scognet INADDR_ANY || INP_SOCKAF(so) == 25897658Stanimura INP_SOCKAF(t->inp_socket))) 25997658Stanimura return (EADDRINUSE); 26055679Sshin } 26153541Sshin } 26253541Sshin inp->in6p_laddr = sin6->sin6_addr; 26353541Sshin } 26453541Sshin if (lport == 0) { 26562587Sitojun int e; 266127505Spjd if ((e = in6_pcbsetport(&inp->in6p_laddr, inp, cred)) != 0) 267120856Sume return (e); 26862587Sitojun } 26962587Sitojun else { 27062587Sitojun inp->inp_lport = lport; 27162587Sitojun if (in_pcbinshash(inp) != 0) { 27262587Sitojun inp->in6p_laddr = in6addr_any; 27362587Sitojun inp->inp_lport = 0; 27462587Sitojun return (EAGAIN); 27553541Sshin } 27653541Sshin } 277120856Sume return (0); 27853541Sshin} 27953541Sshin 28053541Sshin/* 28153541Sshin * Transform old in6_pcbconnect() into an inner subroutine for new 28253541Sshin * in6_pcbconnect(): Do some validity-checking on the remote 28353541Sshin * address (in mbuf 'nam') and then determine local host address 28453541Sshin * (i.e., which interface) to use to access that remote host. 28553541Sshin * 28653541Sshin * This preserves definition of in6_pcbconnect(), while supporting a 28753541Sshin * slightly different version for T/TCP. (This is more than 28853541Sshin * a bit of a kludge, but cleaning up the internal interfaces would 28953541Sshin * have forced minor changes in every protocol). 29053541Sshin */ 29153541Sshin 29253541Sshinint 29353541Sshinin6_pcbladdr(inp, nam, plocal_addr6) 29453541Sshin register struct inpcb *inp; 29553541Sshin struct sockaddr *nam; 29653541Sshin struct in6_addr **plocal_addr6; 29753541Sshin{ 29853541Sshin register struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam; 299148385Sume int error = 0; 30053541Sshin struct ifnet *ifp = NULL; 301148385Sume int scope_ambiguous = 0; 30253541Sshin 303158011Srwatson INP_INFO_WLOCK_ASSERT(inp->inp_pcbinfo); 304158011Srwatson INP_LOCK_ASSERT(inp); 305158011Srwatson 30653541Sshin if (nam->sa_len != sizeof (*sin6)) 30753541Sshin return (EINVAL); 30853541Sshin if (sin6->sin6_family != AF_INET6) 30953541Sshin return (EAFNOSUPPORT); 31053541Sshin if (sin6->sin6_port == 0) 31153541Sshin return (EADDRNOTAVAIL); 31253541Sshin 313148385Sume if (sin6->sin6_scope_id == 0 && !ip6_use_defzone) 314148385Sume scope_ambiguous = 1; 315148385Sume if ((error = sa6_embedscope(sin6, ip6_use_defzone)) != 0) 316148385Sume return(error); 317148385Sume 31853541Sshin if (in6_ifaddr) { 31953541Sshin /* 32053541Sshin * If the destination address is UNSPECIFIED addr, 32153541Sshin * use the loopback addr, e.g ::1. 32253541Sshin */ 32353541Sshin if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) 32453541Sshin sin6->sin6_addr = in6addr_loopback; 32553541Sshin } 326148385Sume 327148385Sume /* 328148385Sume * XXX: in6_selectsrc might replace the bound local address 329148385Sume * with the address specified by setsockopt(IPV6_PKTINFO). 330148385Sume * Is it the intended behavior? 331148385Sume */ 332148385Sume *plocal_addr6 = in6_selectsrc(sin6, inp->in6p_outputopts, 333148385Sume inp->in6p_moptions, NULL, 334148385Sume &inp->in6p_laddr, &ifp, &error); 335148385Sume if (ifp && scope_ambiguous && 336148385Sume (error = in6_setscope(&sin6->sin6_addr, ifp, NULL)) != 0) { 337148385Sume return(error); 33853541Sshin } 339148385Sume 340148385Sume if (*plocal_addr6 == 0) { 341148385Sume if (error == 0) 342148385Sume error = EADDRNOTAVAIL; 343148385Sume return (error); 344148385Sume } 345148385Sume /* 346148385Sume * Don't do pcblookup call here; return interface in 347148385Sume * plocal_addr6 348148385Sume * and exit to caller, that will do the lookup. 349148385Sume */ 350148385Sume 351120856Sume return (0); 35253541Sshin} 35353541Sshin 35453541Sshin/* 35553541Sshin * Outer subroutine: 35653541Sshin * Connect from a socket to a specified address. 35753541Sshin * Both address and port must be specified in argument sin. 35853541Sshin * If don't have a local address for this socket yet, 35953541Sshin * then pick one. 36053541Sshin */ 36153541Sshinint 362127505Spjdin6_pcbconnect(inp, nam, cred) 36353541Sshin register struct inpcb *inp; 36453541Sshin struct sockaddr *nam; 365127505Spjd struct ucred *cred; 36653541Sshin{ 36753541Sshin struct in6_addr *addr6; 36853541Sshin register struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam; 36953541Sshin int error; 37053541Sshin 371132714Srwatson INP_INFO_WLOCK_ASSERT(inp->inp_pcbinfo); 372132714Srwatson INP_LOCK_ASSERT(inp); 373132714Srwatson 37453541Sshin /* 37595023Ssuz * Call inner routine, to assign local interface address. 37695023Ssuz * in6_pcbladdr() may automatically fill in sin6_scope_id. 37753541Sshin */ 37853541Sshin if ((error = in6_pcbladdr(inp, nam, &addr6)) != 0) 379120856Sume return (error); 38053541Sshin 38153541Sshin if (in6_pcblookup_hash(inp->inp_pcbinfo, &sin6->sin6_addr, 38253541Sshin sin6->sin6_port, 38353541Sshin IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr) 38453541Sshin ? addr6 : &inp->in6p_laddr, 38553541Sshin inp->inp_lport, 0, NULL) != NULL) { 38653541Sshin return (EADDRINUSE); 38753541Sshin } 38853541Sshin if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) { 38953541Sshin if (inp->inp_lport == 0) { 390127505Spjd error = in6_pcbbind(inp, (struct sockaddr *)0, cred); 39153541Sshin if (error) 39253541Sshin return (error); 39353541Sshin } 39453541Sshin inp->in6p_laddr = *addr6; 39553541Sshin } 39653541Sshin inp->in6p_faddr = sin6->sin6_addr; 39753541Sshin inp->inp_fport = sin6->sin6_port; 39878064Sume /* update flowinfo - draft-itojun-ipv6-flowlabel-api-00 */ 39978064Sume inp->in6p_flowinfo &= ~IPV6_FLOWLABEL_MASK; 40078064Sume if (inp->in6p_flags & IN6P_AUTOFLOWLABEL) 40155679Sshin inp->in6p_flowinfo |= 402120649Sume (htonl(ip6_randomflowlabel()) & IPV6_FLOWLABEL_MASK); 40353541Sshin 40453541Sshin in_pcbrehash(inp); 405124465Sume#ifdef IPSEC 406124465Sume if (inp->inp_socket->so_type == SOCK_STREAM) 407124465Sume ipsec_pcbconn(inp->inp_sp); 408124465Sume#endif 40953541Sshin return (0); 41053541Sshin} 41153541Sshin 41253541Sshinvoid 41353541Sshinin6_pcbdisconnect(inp) 41453541Sshin struct inpcb *inp; 41553541Sshin{ 416132714Srwatson 417132714Srwatson INP_INFO_WLOCK_ASSERT(inp->inp_pcbinfo); 418132714Srwatson INP_LOCK_ASSERT(inp); 419132714Srwatson 42053541Sshin bzero((caddr_t)&inp->in6p_faddr, sizeof(inp->in6p_faddr)); 42153541Sshin inp->inp_fport = 0; 42278064Sume /* clear flowinfo - draft-itojun-ipv6-flowlabel-api-00 */ 42378064Sume inp->in6p_flowinfo &= ~IPV6_FLOWLABEL_MASK; 42453541Sshin in_pcbrehash(inp); 425124465Sume#ifdef IPSEC 426124465Sume ipsec_pcbdisconn(inp->inp_sp); 427124465Sume#endif 42853541Sshin} 42953541Sshin 43053541Sshinvoid 431157373Srwatsonin6_pcbdetach(struct inpcb *inp) 43253541Sshin{ 433157373Srwatson 434157373Srwatson KASSERT(inp->inp_socket != NULL, ("in6_pcbdetach: inp_socket == NULL")); 435157373Srwatson inp->inp_socket->so_pcb = NULL; 436157373Srwatson inp->inp_socket = NULL; 437157373Srwatson} 438157373Srwatson 439157373Srwatsonvoid 440157373Srwatsonin6_pcbfree(struct inpcb *inp) 441157373Srwatson{ 44253541Sshin struct inpcbinfo *ipi = inp->inp_pcbinfo; 44353541Sshin 444157373Srwatson KASSERT(inp->inp_socket == NULL, ("in6_pcbfree: inp_socket != NULL")); 445132714Srwatson INP_INFO_WLOCK_ASSERT(inp->inp_pcbinfo); 446132714Srwatson INP_LOCK_ASSERT(inp); 447132714Srwatson 448125626Sume#if defined(IPSEC) || defined(FAST_IPSEC) 44958452Sgreen if (inp->in6p_sp != NULL) 45058452Sgreen ipsec6_delete_pcbpolicy(inp); 45153541Sshin#endif /* IPSEC */ 45253541Sshin inp->inp_gencnt = ++ipi->ipi_gencnt; 45353541Sshin in_pcbremlists(inp); 45478064Sume ip6_freepcbopts(inp->in6p_outputopts); 45578064Sume ip6_freemoptions(inp->in6p_moptions); 45655679Sshin /* Check and free IPv4 related resources in case of mapped addr */ 45755679Sshin if (inp->inp_options) 45855679Sshin (void)m_free(inp->inp_options); 45955679Sshin ip_freemoptions(inp->inp_moptions); 46053541Sshin inp->inp_vflag = 0; 461160491Sups INP_UNLOCK(inp); 46292767Sjeff uma_zfree(ipi->ipi_zone, inp); 46353541Sshin} 46453541Sshin 465102218Struckmanstruct sockaddr * 466102218Struckmanin6_sockaddr(port, addr_p) 467102218Struckman in_port_t port; 468102218Struckman struct in6_addr *addr_p; 469102218Struckman{ 470102218Struckman struct sockaddr_in6 *sin6; 471102218Struckman 472111119Simp MALLOC(sin6, struct sockaddr_in6 *, sizeof *sin6, M_SONAME, M_WAITOK); 473102218Struckman bzero(sin6, sizeof *sin6); 474102218Struckman sin6->sin6_family = AF_INET6; 475102218Struckman sin6->sin6_len = sizeof(*sin6); 476102218Struckman sin6->sin6_port = port; 477102218Struckman sin6->sin6_addr = *addr_p; 478148385Sume (void)sa6_recoverscope(sin6); /* XXX: should catch errors */ 479102218Struckman 480102218Struckman return (struct sockaddr *)sin6; 481102218Struckman} 482102218Struckman 483102218Struckmanstruct sockaddr * 484102218Struckmanin6_v4mapsin6_sockaddr(port, addr_p) 485102218Struckman in_port_t port; 486102218Struckman struct in_addr *addr_p; 487102218Struckman{ 488102218Struckman struct sockaddr_in sin; 489102218Struckman struct sockaddr_in6 *sin6_p; 490102218Struckman 491102218Struckman bzero(&sin, sizeof sin); 492102218Struckman sin.sin_family = AF_INET; 493102218Struckman sin.sin_len = sizeof(sin); 494102218Struckman sin.sin_port = port; 495102218Struckman sin.sin_addr = *addr_p; 496102218Struckman 497102218Struckman MALLOC(sin6_p, struct sockaddr_in6 *, sizeof *sin6_p, M_SONAME, 498111119Simp M_WAITOK); 499102218Struckman in6_sin_2_v4mapsin6(&sin, sin6_p); 500102218Struckman 501102218Struckman return (struct sockaddr *)sin6_p; 502102218Struckman} 503102218Struckman 50453541Sshinint 505169462Srwatsonin6_getsockaddr(so, nam) 50653541Sshin struct socket *so; 50753541Sshin struct sockaddr **nam; 50853541Sshin{ 50953541Sshin register struct inpcb *inp; 510102218Struckman struct in6_addr addr; 511102218Struckman in_port_t port; 51253541Sshin 51353541Sshin inp = sotoinpcb(so); 514169462Srwatson KASSERT(inp != NULL, ("in6_getsockaddr: inp == NULL")); 515157673Srwatson 516157767Srwatson INP_LOCK(inp); 517102218Struckman port = inp->inp_lport; 518102218Struckman addr = inp->in6p_laddr; 519157767Srwatson INP_UNLOCK(inp); 52053541Sshin 521102218Struckman *nam = in6_sockaddr(port, &addr); 52253541Sshin return 0; 52353541Sshin} 52453541Sshin 52553541Sshinint 526169462Srwatsonin6_getpeeraddr(so, nam) 52753541Sshin struct socket *so; 52853541Sshin struct sockaddr **nam; 52953541Sshin{ 53053541Sshin struct inpcb *inp; 531102218Struckman struct in6_addr addr; 532102218Struckman in_port_t port; 53353541Sshin 53453541Sshin inp = sotoinpcb(so); 535169462Srwatson KASSERT(inp != NULL, ("in6_getpeeraddr: inp == NULL")); 536157673Srwatson 537157767Srwatson INP_LOCK(inp); 538102218Struckman port = inp->inp_fport; 539102218Struckman addr = inp->in6p_faddr; 540157767Srwatson INP_UNLOCK(inp); 54153541Sshin 542102218Struckman *nam = in6_sockaddr(port, &addr); 54353541Sshin return 0; 54453541Sshin} 54553541Sshin 54653541Sshinint 54753541Sshinin6_mapped_sockaddr(struct socket *so, struct sockaddr **nam) 54853541Sshin{ 549157673Srwatson struct inpcb *inp; 55053541Sshin int error; 55153541Sshin 552157673Srwatson inp = sotoinpcb(so); 553157673Srwatson KASSERT(inp != NULL, ("in6_mapped_sockaddr: inp == NULL")); 554157673Srwatson 555124332Sume if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) { 556169462Srwatson error = in_getsockaddr(so, nam); 55754952Seivind if (error == 0) 55853541Sshin in6_sin_2_v4mapsin6_in_sock(nam); 559120913Sume } else { 560169462Srwatson /* scope issues will be handled in in6_getsockaddr(). */ 561169462Srwatson error = in6_getsockaddr(so, nam); 562120913Sume } 56353541Sshin 56453541Sshin return error; 56553541Sshin} 56653541Sshin 56753541Sshinint 56853541Sshinin6_mapped_peeraddr(struct socket *so, struct sockaddr **nam) 56953541Sshin{ 570157673Srwatson struct inpcb *inp; 57153541Sshin int error; 57253541Sshin 573157673Srwatson inp = sotoinpcb(so); 574157673Srwatson KASSERT(inp != NULL, ("in6_mapped_peeraddr: inp == NULL")); 575157673Srwatson 576124332Sume if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) { 577169462Srwatson error = in_getpeeraddr(so, nam); 57854952Seivind if (error == 0) 57953541Sshin in6_sin_2_v4mapsin6_in_sock(nam); 58053541Sshin } else 581169462Srwatson /* scope issues will be handled in in6_getpeeraddr(). */ 582169462Srwatson error = in6_getpeeraddr(so, nam); 58353541Sshin 58453541Sshin return error; 58553541Sshin} 58653541Sshin 58753541Sshin/* 58853541Sshin * Pass some notification to all connections of a protocol 58953541Sshin * associated with address dst. The local address and/or port numbers 59053541Sshin * may be specified to limit the search. The "usual action" will be 59153541Sshin * taken, depending on the ctlinput cmd. The caller must filter any 59253541Sshin * cmds that are uninteresting (e.g., no error in the map). 59353541Sshin * Call the protocol specific routine (if any) to report 59453541Sshin * any errors for each matching socket. 59553541Sshin */ 59653541Sshinvoid 597133192Srwatsonin6_pcbnotify(pcbinfo, dst, fport_arg, src, lport_arg, cmd, cmdarg, notify) 598133192Srwatson struct inpcbinfo *pcbinfo; 59991346Salfred struct sockaddr *dst; 60091346Salfred const struct sockaddr *src; 60153541Sshin u_int fport_arg, lport_arg; 60253541Sshin int cmd; 603125776Sume void *cmdarg; 60498211Shsu struct inpcb *(*notify) __P((struct inpcb *, int)); 60553541Sshin{ 606133192Srwatson struct inpcbhead *head; 60762587Sitojun struct inpcb *inp, *ninp; 60878064Sume struct sockaddr_in6 sa6_src, *sa6_dst; 60953541Sshin u_short fport = fport_arg, lport = lport_arg; 61078064Sume u_int32_t flowinfo; 611157673Srwatson int errno; 61253541Sshin 613119995Sru if ((unsigned)cmd >= PRC_NCMDS || dst->sa_family != AF_INET6) 61453541Sshin return; 61578064Sume 61678064Sume sa6_dst = (struct sockaddr_in6 *)dst; 61778064Sume if (IN6_IS_ADDR_UNSPECIFIED(&sa6_dst->sin6_addr)) 61853541Sshin return; 61953541Sshin 62053541Sshin /* 62178064Sume * note that src can be NULL when we get notify by local fragmentation. 62278064Sume */ 62391346Salfred sa6_src = (src == NULL) ? sa6_any : *(const struct sockaddr_in6 *)src; 62478064Sume flowinfo = sa6_src.sin6_flowinfo; 62578064Sume 62678064Sume /* 62753541Sshin * Redirects go to all references to the destination, 62862587Sitojun * and use in6_rtchange to invalidate the route cache. 62962587Sitojun * Dead host indications: also use in6_rtchange to invalidate 63062587Sitojun * the cache, and deliver the error to all the sockets. 63153541Sshin * Otherwise, if we have knowledge of the local port and address, 63253541Sshin * deliver only to that socket. 63353541Sshin */ 63453541Sshin if (PRC_IS_REDIRECT(cmd) || cmd == PRC_HOSTDEAD) { 63553541Sshin fport = 0; 63653541Sshin lport = 0; 63778064Sume bzero((caddr_t)&sa6_src.sin6_addr, sizeof(sa6_src.sin6_addr)); 63862587Sitojun 63978064Sume if (cmd != PRC_HOSTDEAD) 64078064Sume notify = in6_rtchange; 64153541Sshin } 64253541Sshin errno = inet6ctlerrmap[cmd]; 643169154Srwatson head = pcbinfo->ipi_listhead; 644133192Srwatson INP_INFO_WLOCK(pcbinfo); 64562587Sitojun for (inp = LIST_FIRST(head); inp != NULL; inp = ninp) { 646133192Srwatson INP_LOCK(inp); 64762587Sitojun ninp = LIST_NEXT(inp, inp_list); 64862587Sitojun 649133192Srwatson if ((inp->inp_vflag & INP_IPV6) == 0) { 650133192Srwatson INP_UNLOCK(inp); 65153541Sshin continue; 652133192Srwatson } 65362587Sitojun 65478064Sume /* 655125776Sume * If the error designates a new path MTU for a destination 656125776Sume * and the application (associated with this socket) wanted to 657125776Sume * know the value, notify. Note that we notify for all 658125776Sume * disconnected sockets if the corresponding application 659125776Sume * wanted. This is because some UDP applications keep sending 660125776Sume * sockets disconnected. 661125776Sume * XXX: should we avoid to notify the value to TCP sockets? 662125776Sume */ 663125776Sume if (cmd == PRC_MSGSIZE && (inp->inp_flags & IN6P_MTU) != 0 && 664125776Sume (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) || 665125776Sume IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, &sa6_dst->sin6_addr))) { 666125776Sume ip6_notify_pmtu(inp, (struct sockaddr_in6 *)dst, 667125776Sume (u_int32_t *)cmdarg); 668125776Sume } 669125776Sume 670125776Sume /* 67178064Sume * Detect if we should notify the error. If no source and 67278064Sume * destination ports are specifed, but non-zero flowinfo and 67378064Sume * local address match, notify the error. This is the case 67478064Sume * when the error is delivered with an encrypted buffer 67578064Sume * by ESP. Otherwise, just compare addresses and ports 67678064Sume * as usual. 67778064Sume */ 67878064Sume if (lport == 0 && fport == 0 && flowinfo && 67978064Sume inp->inp_socket != NULL && 68078064Sume flowinfo == (inp->in6p_flowinfo & IPV6_FLOWLABEL_MASK) && 68178064Sume IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, &sa6_src.sin6_addr)) 68278064Sume goto do_notify; 68378064Sume else if (!IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, 68478064Sume &sa6_dst->sin6_addr) || 68578064Sume inp->inp_socket == 0 || 68678064Sume (lport && inp->inp_lport != lport) || 68778064Sume (!IN6_IS_ADDR_UNSPECIFIED(&sa6_src.sin6_addr) && 68878064Sume !IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, 68978064Sume &sa6_src.sin6_addr)) || 690133192Srwatson (fport && inp->inp_fport != fport)) { 691133192Srwatson INP_UNLOCK(inp); 69253541Sshin continue; 693133192Srwatson } 69462587Sitojun 69578064Sume do_notify: 696134121Srwatson if (notify) { 697134121Srwatson if ((*notify)(inp, errno)) 698134121Srwatson INP_UNLOCK(inp); 699134121Srwatson } else 700134121Srwatson INP_UNLOCK(inp); 70153541Sshin } 702133192Srwatson INP_INFO_WUNLOCK(pcbinfo); 70353541Sshin} 70453541Sshin 70553541Sshin/* 70653541Sshin * Lookup a PCB based on the local address and port. 70753541Sshin */ 70853541Sshinstruct inpcb * 70953541Sshinin6_pcblookup_local(pcbinfo, laddr, lport_arg, wild_okay) 71053541Sshin struct inpcbinfo *pcbinfo; 71153541Sshin struct in6_addr *laddr; 71253541Sshin u_int lport_arg; 71353541Sshin int wild_okay; 71453541Sshin{ 71553541Sshin register struct inpcb *inp; 71653541Sshin int matchwild = 3, wildcard; 71753541Sshin u_short lport = lport_arg; 71853541Sshin 719158011Srwatson INP_INFO_WLOCK_ASSERT(pcbinfo); 720158011Srwatson 72153541Sshin if (!wild_okay) { 72253541Sshin struct inpcbhead *head; 72353541Sshin /* 72453541Sshin * Look for an unconnected (wildcard foreign addr) PCB that 72553541Sshin * matches the local address and port we're looking for. 72653541Sshin */ 727169154Srwatson head = &pcbinfo->ipi_hashbase[INP_PCBHASH(INADDR_ANY, lport, 728169154Srwatson 0, pcbinfo->ipi_hashmask)]; 72953541Sshin LIST_FOREACH(inp, head, inp_hash) { 73054952Seivind if ((inp->inp_vflag & INP_IPV6) == 0) 73153541Sshin continue; 73253541Sshin if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) && 73353541Sshin IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) && 73453541Sshin inp->inp_lport == lport) { 73553541Sshin /* 73653541Sshin * Found. 73753541Sshin */ 73853541Sshin return (inp); 73953541Sshin } 74053541Sshin } 74153541Sshin /* 74253541Sshin * Not found. 74353541Sshin */ 74453541Sshin return (NULL); 74553541Sshin } else { 74653541Sshin struct inpcbporthead *porthash; 74753541Sshin struct inpcbport *phd; 74853541Sshin struct inpcb *match = NULL; 74953541Sshin /* 75053541Sshin * Best fit PCB lookup. 75153541Sshin * 75253541Sshin * First see if this local port is in use by looking on the 75353541Sshin * port hash list. 75453541Sshin */ 755169154Srwatson porthash = &pcbinfo->ipi_porthashbase[INP_PCBPORTHASH(lport, 756169154Srwatson pcbinfo->ipi_porthashmask)]; 75753541Sshin LIST_FOREACH(phd, porthash, phd_hash) { 75853541Sshin if (phd->phd_port == lport) 75953541Sshin break; 76053541Sshin } 76153541Sshin if (phd != NULL) { 76253541Sshin /* 76353541Sshin * Port is in use by one or more PCBs. Look for best 76453541Sshin * fit. 76553541Sshin */ 76653541Sshin LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) { 76753541Sshin wildcard = 0; 76854952Seivind if ((inp->inp_vflag & INP_IPV6) == 0) 76953541Sshin continue; 77053541Sshin if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr)) 77153541Sshin wildcard++; 77253541Sshin if (!IN6_IS_ADDR_UNSPECIFIED( 77353541Sshin &inp->in6p_laddr)) { 77453541Sshin if (IN6_IS_ADDR_UNSPECIFIED(laddr)) 77553541Sshin wildcard++; 77653541Sshin else if (!IN6_ARE_ADDR_EQUAL( 77753541Sshin &inp->in6p_laddr, laddr)) 77853541Sshin continue; 77953541Sshin } else { 78053541Sshin if (!IN6_IS_ADDR_UNSPECIFIED(laddr)) 78153541Sshin wildcard++; 78253541Sshin } 78353541Sshin if (wildcard < matchwild) { 78453541Sshin match = inp; 78553541Sshin matchwild = wildcard; 78653541Sshin if (matchwild == 0) { 78753541Sshin break; 78853541Sshin } 78953541Sshin } 79053541Sshin } 79153541Sshin } 79253541Sshin return (match); 79353541Sshin } 79453541Sshin} 79553541Sshin 79681127Sumevoid 797157978Srwatsonin6_pcbpurgeif0(pcbinfo, ifp) 798157978Srwatson struct inpcbinfo *pcbinfo; 79981127Sume struct ifnet *ifp; 80081127Sume{ 80181127Sume struct in6pcb *in6p; 80281127Sume struct ip6_moptions *im6o; 80381127Sume struct in6_multi_mship *imm, *nimm; 80481127Sume 805157978Srwatson INP_INFO_RLOCK(pcbinfo); 806169154Srwatson LIST_FOREACH(in6p, pcbinfo->ipi_listhead, inp_list) { 807157978Srwatson INP_LOCK(in6p); 80881127Sume im6o = in6p->in6p_moptions; 80981127Sume if ((in6p->inp_vflag & INP_IPV6) && 81081127Sume im6o) { 81181127Sume /* 81281127Sume * Unselect the outgoing interface if it is being 81381127Sume * detached. 81481127Sume */ 81581127Sume if (im6o->im6o_multicast_ifp == ifp) 81681127Sume im6o->im6o_multicast_ifp = NULL; 81781127Sume 81881127Sume /* 81981127Sume * Drop multicast group membership if we joined 82081127Sume * through the interface being detached. 82181127Sume * XXX controversial - is it really legal for kernel 82281127Sume * to force this? 82381127Sume */ 82481127Sume for (imm = im6o->im6o_memberships.lh_first; 82581127Sume imm != NULL; imm = nimm) { 82681127Sume nimm = imm->i6mm_chain.le_next; 82781127Sume if (imm->i6mm_maddr->in6m_ifp == ifp) { 82881127Sume LIST_REMOVE(imm, i6mm_chain); 82981127Sume in6_delmulti(imm->i6mm_maddr); 830149849Sobrien free(imm, M_IP6MADDR); 83181127Sume } 83281127Sume } 83381127Sume } 834157978Srwatson INP_UNLOCK(in6p); 83581127Sume } 836157978Srwatson INP_INFO_RUNLOCK(pcbinfo); 83781127Sume} 83881127Sume 83953541Sshin/* 84053541Sshin * Check for alternatives when higher level complains 84153541Sshin * about service problems. For now, invalidate cached 84253541Sshin * routing information. If the route was created dynamically 84353541Sshin * (by a redirect), time to try a default gateway again. 84453541Sshin */ 84553541Sshinvoid 84653541Sshinin6_losing(in6p) 84753541Sshin struct inpcb *in6p; 84853541Sshin{ 849122922Sandre /* 850122922Sandre * We don't store route pointers in the routing table anymore 851122922Sandre */ 852122922Sandre return; 85353541Sshin} 85453541Sshin 85553541Sshin/* 85653541Sshin * After a routing change, flush old routing 85753541Sshin * and allocate a (hopefully) better one. 85853541Sshin */ 85998211Shsustruct inpcb * 86053541Sshinin6_rtchange(inp, errno) 86153541Sshin struct inpcb *inp; 86253541Sshin int errno; 86353541Sshin{ 864122922Sandre /* 865122922Sandre * We don't store route pointers in the routing table anymore 866122922Sandre */ 86798211Shsu return inp; 86853541Sshin} 86953541Sshin 87053541Sshin/* 87153541Sshin * Lookup PCB in hash list. 87253541Sshin */ 87353541Sshinstruct inpcb * 87453541Sshinin6_pcblookup_hash(pcbinfo, faddr, fport_arg, laddr, lport_arg, wildcard, ifp) 87553541Sshin struct inpcbinfo *pcbinfo; 87653541Sshin struct in6_addr *faddr, *laddr; 87753541Sshin u_int fport_arg, lport_arg; 87853541Sshin int wildcard; 87953541Sshin struct ifnet *ifp; 88053541Sshin{ 88153541Sshin struct inpcbhead *head; 88253541Sshin register struct inpcb *inp; 88353541Sshin u_short fport = fport_arg, lport = lport_arg; 88478064Sume int faith; 88553541Sshin 886158011Srwatson INP_INFO_RLOCK_ASSERT(pcbinfo); 887158011Srwatson 88883934Sbrooks if (faithprefix_p != NULL) 88983934Sbrooks faith = (*faithprefix_p)(laddr); 89083934Sbrooks else 89183934Sbrooks faith = 0; 89278064Sume 89353541Sshin /* 89453541Sshin * First look for an exact match. 89553541Sshin */ 896169154Srwatson head = &pcbinfo->ipi_hashbase[ 897169154Srwatson INP_PCBHASH(faddr->s6_addr32[3] /* XXX */, lport, fport, 898169154Srwatson pcbinfo->ipi_hashmask)]; 89954263Sshin LIST_FOREACH(inp, head, inp_hash) { 90054952Seivind if ((inp->inp_vflag & INP_IPV6) == 0) 90153541Sshin continue; 90253541Sshin if (IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, faddr) && 90353541Sshin IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) && 90453541Sshin inp->inp_fport == fport && 90553541Sshin inp->inp_lport == lport) { 90653541Sshin /* 90753541Sshin * Found. 90853541Sshin */ 90953541Sshin return (inp); 91053541Sshin } 91153541Sshin } 91253541Sshin if (wildcard) { 91353541Sshin struct inpcb *local_wild = NULL; 91453541Sshin 915169154Srwatson head = &pcbinfo->ipi_hashbase[INP_PCBHASH(INADDR_ANY, lport, 916169154Srwatson 0, pcbinfo->ipi_hashmask)]; 91754263Sshin LIST_FOREACH(inp, head, inp_hash) { 91854952Seivind if ((inp->inp_vflag & INP_IPV6) == 0) 91953541Sshin continue; 92053541Sshin if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) && 92153541Sshin inp->inp_lport == lport) { 92278064Sume if (faith && (inp->inp_flags & INP_FAITH) == 0) 92353541Sshin continue; 92453541Sshin if (IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, 92553541Sshin laddr)) 92653541Sshin return (inp); 92753541Sshin else if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 92853541Sshin local_wild = inp; 92953541Sshin } 93053541Sshin } 93153541Sshin return (local_wild); 93253541Sshin } 93353541Sshin 93453541Sshin /* 93553541Sshin * Not found. 93653541Sshin */ 93753541Sshin return (NULL); 93853541Sshin} 93953541Sshin 94053541Sshinvoid 94153541Sshininit_sin6(struct sockaddr_in6 *sin6, struct mbuf *m) 94253541Sshin{ 94353541Sshin struct ip6_hdr *ip; 94453541Sshin 94553541Sshin ip = mtod(m, struct ip6_hdr *); 94653541Sshin bzero(sin6, sizeof(*sin6)); 94753541Sshin sin6->sin6_len = sizeof(*sin6); 94853541Sshin sin6->sin6_family = AF_INET6; 94953541Sshin sin6->sin6_addr = ip->ip6_src; 95053541Sshin 951148385Sume (void)sa6_recoverscope(sin6); /* XXX: should catch errors... */ 952148385Sume 95353541Sshin return; 95453541Sshin} 955