version 1.80, 2001/07/03 08:06:20 |
version 1.113, 2003/10/23 20:55:08 |
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/* |
/* |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* All rights reserved. |
* All rights reserved. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* modification, are permitted provided that the following conditions |
* are met: |
* are met: |
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* 3. Neither the name of the project nor the names of its contributors |
* 3. Neither the name of the project nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* 3. Neither the name of the University nor the names of its contributors |
* must display the following acknowledgement: |
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* This product includes software developed by the University of |
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* California, Berkeley and its contributors. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
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* @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 |
* @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 |
*/ |
*/ |
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#include <sys/cdefs.h> |
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__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_inet.h" |
#include "opt_inet.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_inet_csum.h" |
#include "opt_inet_csum.h" |
#include "opt_ipkdb.h" |
#include "opt_ipkdb.h" |
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#include "opt_mbuftrace.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/malloc.h> |
#include <sys/malloc.h> |
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#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/proc.h> |
#include <sys/proc.h> |
#include <sys/domain.h> |
#include <sys/domain.h> |
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#include <uvm/uvm_extern.h> |
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#include <sys/sysctl.h> |
#include <sys/sysctl.h> |
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#include <net/if.h> |
#include <net/if.h> |
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#include <netinet6/udp6_var.h> |
#include <netinet6/udp6_var.h> |
#endif |
#endif |
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#ifdef PULLDOWN_TEST |
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#ifndef INET6 |
#ifndef INET6 |
/* always need ip6.h for IP6_EXTHDR_GET */ |
/* always need ip6.h for IP6_EXTHDR_GET */ |
#include <netinet/ip6.h> |
#include <netinet/ip6.h> |
#endif |
#endif |
#endif |
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#include "faith.h" |
#include "faith.h" |
#if defined(NFAITH) && NFAITH > 0 |
#if defined(NFAITH) && NFAITH > 0 |
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#include <machine/stdarg.h> |
#include <machine/stdarg.h> |
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#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
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#ifdef INET6 |
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#include <netipsec/ipsec6.h> |
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#endif |
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#endif /* FAST_IPSEC*/ |
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#ifdef IPSEC |
#ifdef IPSEC |
#include <netinet6/ipsec.h> |
#include <netinet6/ipsec.h> |
#include <netkey/key.h> |
#include <netkey/key.h> |
Line 138 int udpcksum = 1; |
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Line 141 int udpcksum = 1; |
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int udpcksum = 0; /* XXX */ |
int udpcksum = 0; /* XXX */ |
#endif |
#endif |
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struct inpcbtable udbtable; |
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struct udpstat udpstat; |
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#ifdef INET |
#ifdef INET |
static void udp4_sendup __P((struct mbuf *, int, struct sockaddr *, |
static void udp4_sendup __P((struct mbuf *, int, struct sockaddr *, |
struct socket *)); |
struct socket *)); |
Line 147 static int udp4_realinput __P((struct so |
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Line 153 static int udp4_realinput __P((struct so |
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#ifdef INET6 |
#ifdef INET6 |
static void udp6_sendup __P((struct mbuf *, int, struct sockaddr *, |
static void udp6_sendup __P((struct mbuf *, int, struct sockaddr *, |
struct socket *)); |
struct socket *)); |
static int in6_mcmatch __P((struct in6pcb *, struct in6_addr *, |
|
struct ifnet *)); |
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static int udp6_realinput __P((int, struct sockaddr_in6 *, |
static int udp6_realinput __P((int, struct sockaddr_in6 *, |
struct sockaddr_in6 *, struct mbuf *, int)); |
struct sockaddr_in6 *, struct mbuf *, int)); |
#endif |
#endif |
Line 161 static void udp_notify __P((struct inpcb |
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Line 165 static void udp_notify __P((struct inpcb |
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#endif |
#endif |
int udbhashsize = UDBHASHSIZE; |
int udbhashsize = UDBHASHSIZE; |
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#ifdef MBUFTRACE |
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struct mowner udp_mowner = { "udp" }; |
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struct mowner udp_rx_mowner = { "udp", "rx" }; |
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struct mowner udp_tx_mowner = { "udp", "tx" }; |
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#endif |
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#ifdef UDP_CSUM_COUNTERS |
#ifdef UDP_CSUM_COUNTERS |
#include <sys/device.h> |
#include <sys/device.h> |
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udp_init() |
udp_init() |
{ |
{ |
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#ifdef INET |
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in_pcbinit(&udbtable, udbhashsize, udbhashsize); |
in_pcbinit(&udbtable, udbhashsize, udbhashsize); |
#endif |
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#ifdef UDP_CSUM_COUNTERS |
#ifdef UDP_CSUM_COUNTERS |
evcnt_attach_static(&udp_hwcsum_bad); |
evcnt_attach_static(&udp_hwcsum_bad); |
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evcnt_attach_static(&udp_hwcsum_data); |
evcnt_attach_static(&udp_hwcsum_data); |
evcnt_attach_static(&udp_swcsum); |
evcnt_attach_static(&udp_swcsum); |
#endif /* UDP_CSUM_COUNTERS */ |
#endif /* UDP_CSUM_COUNTERS */ |
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MOWNER_ATTACH(&udp_tx_mowner); |
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MOWNER_ATTACH(&udp_rx_mowner); |
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MOWNER_ATTACH(&udp_mowner); |
} |
} |
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#ifndef UDP6 |
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#ifdef INET |
#ifdef INET |
void |
void |
#if __STDC__ |
#if __STDC__ |
Line 212 udp_input(m, va_alist) |
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Line 223 udp_input(m, va_alist) |
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struct sockaddr_in src, dst; |
struct sockaddr_in src, dst; |
struct ip *ip; |
struct ip *ip; |
struct udphdr *uh; |
struct udphdr *uh; |
int iphlen, proto; |
int iphlen; |
int len; |
int len; |
int n; |
int n; |
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u_int16_t ip_len; |
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va_start(ap, m); |
va_start(ap, m); |
iphlen = va_arg(ap, int); |
iphlen = va_arg(ap, int); |
proto = va_arg(ap, int); |
(void)va_arg(ap, int); /* ignore value, advance ap */ |
va_end(ap); |
va_end(ap); |
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MCLAIM(m, &udp_rx_mowner); |
udpstat.udps_ipackets++; |
udpstat.udps_ipackets++; |
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#ifndef PULLDOWN_TEST |
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/* |
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* Strip IP options, if any; should skip this, |
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* make available to user, and use on returned packets, |
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* but we don't yet have a way to check the checksum |
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* with options still present. |
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*/ |
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if (iphlen > sizeof (struct ip)) { |
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ip_stripoptions(m, (struct mbuf *)0); |
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iphlen = sizeof(struct ip); |
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} |
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#else |
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/* |
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* we may enable the above code if we save and pass IPv4 options |
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* to the userland. |
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*/ |
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#endif |
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/* |
/* |
* Get IP and UDP header together in first mbuf. |
* Get IP and UDP header together in first mbuf. |
*/ |
*/ |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
#ifndef PULLDOWN_TEST |
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if (m->m_len < iphlen + sizeof(struct udphdr)) { |
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if ((m = m_pullup(m, iphlen + sizeof(struct udphdr))) == 0) { |
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udpstat.udps_hdrops++; |
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return; |
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} |
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ip = mtod(m, struct ip *); |
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} |
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uh = (struct udphdr *)((caddr_t)ip + iphlen); |
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#else |
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IP6_EXTHDR_GET(uh, struct udphdr *, m, iphlen, sizeof(struct udphdr)); |
IP6_EXTHDR_GET(uh, struct udphdr *, m, iphlen, sizeof(struct udphdr)); |
if (uh == NULL) { |
if (uh == NULL) { |
udpstat.udps_hdrops++; |
udpstat.udps_hdrops++; |
return; |
return; |
} |
} |
#endif |
KASSERT(UDP_HDR_ALIGNED_P(uh)); |
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/* destination port of 0 is illegal, based on RFC768. */ |
/* destination port of 0 is illegal, based on RFC768. */ |
if (uh->uh_dport == 0) |
if (uh->uh_dport == 0) |
Line 270 udp_input(m, va_alist) |
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Line 255 udp_input(m, va_alist) |
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* Make mbuf data length reflect UDP length. |
* Make mbuf data length reflect UDP length. |
* If not enough data to reflect UDP length, drop. |
* If not enough data to reflect UDP length, drop. |
*/ |
*/ |
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ip_len = ntohs(ip->ip_len); |
len = ntohs((u_int16_t)uh->uh_ulen); |
len = ntohs((u_int16_t)uh->uh_ulen); |
if (ip->ip_len != iphlen + len) { |
if (ip_len != iphlen + len) { |
if (ip->ip_len < iphlen + len || len < sizeof(struct udphdr)) { |
if (ip_len < iphlen + len || len < sizeof(struct udphdr)) { |
udpstat.udps_badlen++; |
udpstat.udps_badlen++; |
goto bad; |
goto bad; |
} |
} |
m_adj(m, iphlen + len - ip->ip_len); |
m_adj(m, iphlen + len - ip_len); |
} |
} |
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/* |
/* |
Line 284 udp_input(m, va_alist) |
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Line 270 udp_input(m, va_alist) |
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*/ |
*/ |
if (uh->uh_sum) { |
if (uh->uh_sum) { |
switch (m->m_pkthdr.csum_flags & |
switch (m->m_pkthdr.csum_flags & |
((m->m_pkthdr.rcvif->if_csum_flags & M_CSUM_UDPv4) | |
((m->m_pkthdr.rcvif->if_csum_flags_rx & M_CSUM_UDPv4) | |
M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD: |
case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD: |
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad); |
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad); |
goto badcsum; |
goto badcsum; |
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case M_CSUM_UDPv4|M_CSUM_DATA: |
case M_CSUM_UDPv4|M_CSUM_DATA: { |
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u_int32_t hw_csum = m->m_pkthdr.csum_data; |
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data); |
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data); |
if ((m->m_pkthdr.csum_data ^ 0xffff) != 0) |
if (m->m_pkthdr.csum_flags & M_CSUM_NO_PSEUDOHDR) |
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hw_csum = in_cksum_phdr(ip->ip_src.s_addr, |
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ip->ip_dst.s_addr, |
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htonl(hw_csum + ntohs(ip->ip_len) + |
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IPPROTO_UDP)); |
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if ((hw_csum ^ 0xffff) != 0) |
goto badcsum; |
goto badcsum; |
break; |
break; |
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} |
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case M_CSUM_UDPv4: |
case M_CSUM_UDPv4: |
/* Checksum was okay. */ |
/* Checksum was okay. */ |
Line 391 udp6_input(mp, offp, proto) |
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Line 384 udp6_input(mp, offp, proto) |
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struct udphdr *uh; |
struct udphdr *uh; |
u_int32_t plen, ulen; |
u_int32_t plen, ulen; |
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#ifndef PULLDOWN_TEST |
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IP6_EXTHDR_CHECK(m, off, sizeof(struct udphdr), IPPROTO_DONE); |
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#endif |
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ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
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#if defined(NFAITH) && 0 < NFAITH |
#if defined(NFAITH) && 0 < NFAITH |
Line 408 udp6_input(mp, offp, proto) |
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Line 398 udp6_input(mp, offp, proto) |
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/* check for jumbogram is done in ip6_input. we can trust pkthdr.len */ |
/* check for jumbogram is done in ip6_input. we can trust pkthdr.len */ |
plen = m->m_pkthdr.len - off; |
plen = m->m_pkthdr.len - off; |
#ifndef PULLDOWN_TEST |
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uh = (struct udphdr *)((caddr_t)ip6 + off); |
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#else |
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IP6_EXTHDR_GET(uh, struct udphdr *, m, off, sizeof(struct udphdr)); |
IP6_EXTHDR_GET(uh, struct udphdr *, m, off, sizeof(struct udphdr)); |
if (uh == NULL) { |
if (uh == NULL) { |
ip6stat.ip6s_tooshort++; |
ip6stat.ip6s_tooshort++; |
return IPPROTO_DONE; |
return IPPROTO_DONE; |
} |
} |
#endif |
KASSERT(UDP_HDR_ALIGNED_P(uh)); |
ulen = ntohs((u_short)uh->uh_ulen); |
ulen = ntohs((u_short)uh->uh_ulen); |
/* |
/* |
* RFC2675 section 4: jumbograms will have 0 in the UDP header field, |
* RFC2675 section 4: jumbograms will have 0 in the UDP header field, |
Line 496 udp4_sendup(m, off, src, so) |
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Line 483 udp4_sendup(m, off, src, so) |
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struct mbuf *opts = NULL; |
struct mbuf *opts = NULL; |
struct mbuf *n; |
struct mbuf *n; |
struct inpcb *inp = NULL; |
struct inpcb *inp = NULL; |
#ifdef INET6 |
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struct in6pcb *in6p = NULL; |
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#endif |
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if (!so) |
if (!so) |
return; |
return; |
Line 508 udp4_sendup(m, off, src, so) |
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Line 492 udp4_sendup(m, off, src, so) |
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break; |
break; |
#ifdef INET6 |
#ifdef INET6 |
case AF_INET6: |
case AF_INET6: |
in6p = sotoin6pcb(so); |
|
break; |
break; |
#endif |
#endif |
default: |
default: |
return; |
return; |
} |
} |
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#ifdef IPSEC |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (so != NULL && ipsec4_in_reject_so(m, so)) { |
if (so != NULL && ipsec4_in_reject_so(m, so)) { |
ipsecstat.in_polvio++; |
ipsecstat.in_polvio++; |
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if ((n = m_copy(m, 0, M_COPYALL)) != NULL) |
|
icmp_error(n, ICMP_UNREACH, ICMP_UNREACH_ADMIN_PROHIBIT, |
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0, 0); |
return; |
return; |
} |
} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
Line 536 udp4_sendup(m, off, src, so) |
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Line 522 udp4_sendup(m, off, src, so) |
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m_freem(n); |
m_freem(n); |
if (opts) |
if (opts) |
m_freem(opts); |
m_freem(opts); |
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udpstat.udps_fullsock++; |
} else |
} else |
sorwakeup(so); |
sorwakeup(so); |
} |
} |
Line 560 udp6_sendup(m, off, src, so) |
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Line 547 udp6_sendup(m, off, src, so) |
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return; |
return; |
in6p = sotoin6pcb(so); |
in6p = sotoin6pcb(so); |
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#ifdef IPSEC |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (so != NULL && ipsec6_in_reject_so(m, so)) { |
if (so != NULL && ipsec6_in_reject_so(m, so)) { |
ipsec6stat.in_polvio++; |
ipsec6stat.in_polvio++; |
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if ((n = m_copy(m, 0, M_COPYALL)) != NULL) |
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icmp6_error(n, ICMP6_DST_UNREACH, |
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ICMP6_DST_UNREACH_ADMIN, 0); |
return; |
return; |
} |
} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
Line 598 udp4_realinput(src, dst, m, off) |
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Line 588 udp4_realinput(src, dst, m, off) |
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u_int16_t *sport, *dport; |
u_int16_t *sport, *dport; |
int rcvcnt; |
int rcvcnt; |
struct in_addr *src4, *dst4; |
struct in_addr *src4, *dst4; |
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struct inpcb_hdr *inph; |
struct inpcb *inp; |
struct inpcb *inp; |
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rcvcnt = 0; |
rcvcnt = 0; |
Line 613 udp4_realinput(src, dst, m, off) |
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Line 604 udp4_realinput(src, dst, m, off) |
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if (IN_MULTICAST(dst4->s_addr) || |
if (IN_MULTICAST(dst4->s_addr) || |
in_broadcast(*dst4, m->m_pkthdr.rcvif)) { |
in_broadcast(*dst4, m->m_pkthdr.rcvif)) { |
struct inpcb *last; |
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/* |
/* |
* Deliver a multicast or broadcast datagram to *all* sockets |
* Deliver a multicast or broadcast datagram to *all* sockets |
* for which the local and remote addresses and ports match |
* for which the local and remote addresses and ports match |
Line 631 udp4_realinput(src, dst, m, off) |
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Line 621 udp4_realinput(src, dst, m, off) |
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*/ |
*/ |
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/* |
/* |
* KAME note: usually we drop udpiphdr from mbuf here. |
* KAME note: traditionally we dropped udpiphdr from mbuf here. |
* we need udpiphdr for IPsec processing so we do that later. |
* we need udpiphdr for IPsec processing so we do that later. |
*/ |
*/ |
/* |
/* |
* Locate pcb(s) for datagram. |
* Locate pcb(s) for datagram. |
*/ |
*/ |
for (inp = udbtable.inpt_queue.cqh_first; |
CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) { |
inp != (struct inpcb *)&udbtable.inpt_queue; |
inp = (struct inpcb *)inph; |
inp = inp->inp_queue.cqe_next) { |
if (inp->inp_af != AF_INET) |
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continue; |
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if (inp->inp_lport != *dport) |
if (inp->inp_lport != *dport) |
continue; |
continue; |
if (!in_nullhost(inp->inp_laddr)) { |
if (!in_nullhost(inp->inp_laddr)) { |
Line 652 udp4_realinput(src, dst, m, off) |
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Line 644 udp4_realinput(src, dst, m, off) |
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continue; |
continue; |
} |
} |
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last = inp; |
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udp4_sendup(m, off, (struct sockaddr *)src, |
udp4_sendup(m, off, (struct sockaddr *)src, |
inp->inp_socket); |
inp->inp_socket); |
rcvcnt++; |
rcvcnt++; |
Line 669 udp4_realinput(src, dst, m, off) |
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Line 660 udp4_realinput(src, dst, m, off) |
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(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
break; |
break; |
} |
} |
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#if 0 |
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if (last == NULL) { |
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/* |
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* No matching pcb found; discard datagram. |
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* (No need to send an ICMP Port Unreachable |
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* for a broadcast or multicast datgram.) |
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*/ |
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udpstat.udps_noportbcast++; |
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goto bad; |
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} |
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#endif |
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} else { |
} else { |
/* |
/* |
* Locate pcb for datagram. |
* Locate pcb for datagram. |
Line 689 udp4_realinput(src, dst, m, off) |
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Line 668 udp4_realinput(src, dst, m, off) |
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if (inp == 0) { |
if (inp == 0) { |
++udpstat.udps_pcbhashmiss; |
++udpstat.udps_pcbhashmiss; |
inp = in_pcblookup_bind(&udbtable, *dst4, *dport); |
inp = in_pcblookup_bind(&udbtable, *dst4, *dport); |
if (inp == 0) { |
if (inp == 0) |
#if 0 |
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struct mbuf *n; |
|
|
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if (m->m_flags & (M_BCAST | M_MCAST)) { |
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udpstat.udps_noportbcast++; |
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goto bad; |
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} |
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udpstat.udps_noport++; |
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#ifdef IPKDB |
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if (checkipkdb(src4, *sport, *dport, m, off, |
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m->m_pkthdr.len - off)) { |
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/* |
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* It was a debugger connect packet, |
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* just drop it now |
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*/ |
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goto bad; |
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} |
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#endif |
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if ((n = m_copy(m, 0, M_COPYALL)) != NULL) { |
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icmp_error(n, ICMP_UNREACH, |
|
ICMP_UNREACH_PORT, 0, 0); |
|
} |
|
#endif |
|
return rcvcnt; |
return rcvcnt; |
} |
|
} |
} |
|
|
udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket); |
udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket); |
|
|
|
|
#ifdef INET6 |
#ifdef INET6 |
static int |
static int |
in6_mcmatch(in6p, ia6, ifp) |
|
struct in6pcb *in6p; |
|
struct in6_addr *ia6; |
|
struct ifnet *ifp; |
|
{ |
|
struct ip6_moptions *im6o = in6p->in6p_moptions; |
|
struct in6_multi_mship *imm; |
|
|
|
if (im6o == NULL) |
|
return 0; |
|
|
|
for (imm = im6o->im6o_memberships.lh_first; imm != NULL; |
|
imm = imm->i6mm_chain.le_next) { |
|
if ((ifp == NULL || |
|
imm->i6mm_maddr->in6m_ifp == ifp) && |
|
IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, |
|
ia6)) |
|
return 1; |
|
} |
|
return 0; |
|
} |
|
|
|
static int |
|
udp6_realinput(af, src, dst, m, off) |
udp6_realinput(af, src, dst, m, off) |
int af; /* af on packet */ |
int af; /* af on packet */ |
struct sockaddr_in6 *src; |
struct sockaddr_in6 *src; |
Line 762 udp6_realinput(af, src, dst, m, off) |
|
Line 694 udp6_realinput(af, src, dst, m, off) |
|
int rcvcnt; |
int rcvcnt; |
struct in6_addr src6, dst6; |
struct in6_addr src6, dst6; |
const struct in_addr *dst4; |
const struct in_addr *dst4; |
|
struct inpcb_hdr *inph; |
struct in6pcb *in6p; |
struct in6pcb *in6p; |
|
|
rcvcnt = 0; |
rcvcnt = 0; |
Line 776 udp6_realinput(af, src, dst, m, off) |
|
Line 709 udp6_realinput(af, src, dst, m, off) |
|
sport = src->sin6_port; |
sport = src->sin6_port; |
in6_embedscope(&dst6, dst, NULL, NULL); |
in6_embedscope(&dst6, dst, NULL, NULL); |
dport = dst->sin6_port; |
dport = dst->sin6_port; |
dst4 = (struct in_addr *)&dst->sin6_addr.s6_addr32[12]; |
dst4 = (struct in_addr *)&dst->sin6_addr.s6_addr[12]; |
|
|
if (IN6_IS_ADDR_MULTICAST(&dst6) || |
if (IN6_IS_ADDR_MULTICAST(&dst6) || |
(af == AF_INET && IN_MULTICAST(dst4->s_addr))) { |
(af == AF_INET && IN_MULTICAST(dst4->s_addr))) { |
struct in6pcb *last; |
|
/* |
/* |
* Deliver a multicast or broadcast datagram to *all* sockets |
* Deliver a multicast or broadcast datagram to *all* sockets |
* for which the local and remote addresses and ports match |
* for which the local and remote addresses and ports match |
Line 798 udp6_realinput(af, src, dst, m, off) |
|
Line 730 udp6_realinput(af, src, dst, m, off) |
|
*/ |
*/ |
|
|
/* |
/* |
* KAME note: usually we drop udpiphdr from mbuf here. |
* KAME note: traditionally we dropped udpiphdr from mbuf here. |
* we need udpiphdr for IPsec processing so we do that later. |
* we need udpiphdr for IPsec processing so we do that later. |
*/ |
*/ |
/* |
/* |
* Locate pcb(s) for datagram. |
* Locate pcb(s) for datagram. |
*/ |
*/ |
for (in6p = udb6.in6p_next; in6p != &udb6; |
CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) { |
in6p = in6p->in6p_next) { |
in6p = (struct in6pcb *)inph; |
|
if (in6p->in6p_af != AF_INET6) |
|
continue; |
|
|
if (in6p->in6p_lport != dport) |
if (in6p->in6p_lport != dport) |
continue; |
continue; |
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) { |
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) { |
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &dst6) && |
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &dst6)) |
!in6_mcmatch(in6p, &dst6, m->m_pkthdr.rcvif)) |
|
continue; |
continue; |
} |
} else { |
#ifndef INET6_BINDV6ONLY |
|
else { |
|
if (IN6_IS_ADDR_V4MAPPED(&dst6) && |
if (IN6_IS_ADDR_V4MAPPED(&dst6) && |
(in6p->in6p_flags & IN6P_BINDV6ONLY)) |
(in6p->in6p_flags & IN6P_IPV6_V6ONLY)) |
continue; |
continue; |
} |
} |
#endif |
|
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) { |
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) { |
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, |
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, |
&src6) || in6p->in6p_fport != sport) |
&src6) || in6p->in6p_fport != sport) |
continue; |
continue; |
} |
} else { |
#ifndef INET6_BINDV6ONLY |
|
else { |
|
if (IN6_IS_ADDR_V4MAPPED(&src6) && |
if (IN6_IS_ADDR_V4MAPPED(&src6) && |
(in6p->in6p_flags & IN6P_BINDV6ONLY)) |
(in6p->in6p_flags & IN6P_IPV6_V6ONLY)) |
continue; |
continue; |
} |
} |
#endif |
|
|
|
last = in6p; |
|
udp6_sendup(m, off, (struct sockaddr *)src, |
udp6_sendup(m, off, (struct sockaddr *)src, |
in6p->in6p_socket); |
in6p->in6p_socket); |
rcvcnt++; |
rcvcnt++; |
Line 850 udp6_realinput(af, src, dst, m, off) |
|
Line 777 udp6_realinput(af, src, dst, m, off) |
|
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
break; |
break; |
} |
} |
|
|
#if 0 |
|
if (last == NULL) { |
|
/* |
|
* No matching pcb found; discard datagram. |
|
* (No need to send an ICMP Port Unreachable |
|
* for a broadcast or multicast datgram.) |
|
*/ |
|
switch (af) { |
|
case AF_INET: |
|
udpstat.udps_noportbcast++; |
|
break; |
|
case AF_INET6: |
|
udp6stat.udp6s_noportmcast++; |
|
break; |
|
} |
|
goto bad; |
|
} |
|
#endif |
|
} else { |
} else { |
/* |
/* |
* Locate pcb for datagram. |
* Locate pcb for datagram. |
*/ |
*/ |
in6p = in6_pcblookup_connect(&udb6, &src6, sport, |
in6p = in6_pcblookup_connect(&udbtable, &src6, sport, |
&dst6, dport, 0); |
&dst6, dport, 0); |
if (in6p == 0) { |
if (in6p == 0) { |
++udpstat.udps_pcbhashmiss; |
++udpstat.udps_pcbhashmiss; |
in6p = in6_pcblookup_bind(&udb6, &dst6, dport, 0); |
in6p = in6_pcblookup_bind(&udbtable, &dst6, dport, 0); |
if (in6p == 0) { |
if (in6p == 0) |
#if 0 |
|
struct mbuf *n; |
|
n = m_copy(m, 0, M_COPYALL); |
|
switch (af) { |
|
case AF_INET: |
|
if (m->m_flags & (M_BCAST | M_MCAST)) { |
|
udpstat.udps_noportbcast++; |
|
goto bad; |
|
} |
|
udpstat.udps_noport++; |
|
if (n != NULL) |
|
icmp_error(n, ICMP_UNREACH, |
|
ICMP_UNREACH_PORT, 0, 0); |
|
break; |
|
case AF_INET6: |
|
if (m->m_flags & M_MCAST) { |
|
udp6stat.udp6s_noportmcast++; |
|
goto bad; |
|
} |
|
udp6stat.udp6s_noport++; |
|
if (n != NULL) |
|
icmp6_error(n, ICMP6_DST_UNREACH, |
|
ICMP6_DST_UNREACH_NOPORT, 0); |
|
break; |
|
} |
|
#endif |
|
|
|
return rcvcnt; |
return rcvcnt; |
} |
|
} |
} |
|
|
udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket); |
udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket); |
|
|
} |
} |
#endif |
#endif |
|
|
#else /*UDP6*/ |
|
|
|
void |
|
#if __STDC__ |
|
udp_input(struct mbuf *m, ...) |
|
#else |
|
udp_input(m, va_alist) |
|
struct mbuf *m; |
|
va_dcl |
|
#endif |
|
{ |
|
int proto; |
|
struct ip *ip; |
|
struct udphdr *uh; |
|
struct inpcb *inp; |
|
struct mbuf *opts = 0; |
|
int len; |
|
struct ip save_ip; |
|
int iphlen; |
|
va_list ap; |
|
struct sockaddr_in udpsrc; |
|
struct sockaddr *sa; |
|
|
|
va_start(ap, m); |
|
iphlen = va_arg(ap, int); |
|
proto = va_arg(ap, int); |
|
va_end(ap); |
|
|
|
udpstat.udps_ipackets++; |
|
|
|
/* |
|
* Strip IP options, if any; should skip this, |
|
* make available to user, and use on returned packets, |
|
* but we don't yet have a way to check the checksum |
|
* with options still present. |
|
*/ |
|
if (iphlen > sizeof (struct ip)) { |
|
ip_stripoptions(m, (struct mbuf *)0); |
|
iphlen = sizeof(struct ip); |
|
} |
|
|
|
/* |
|
* Get IP and UDP header together in first mbuf. |
|
*/ |
|
ip = mtod(m, struct ip *); |
|
if (m->m_len < iphlen + sizeof(struct udphdr)) { |
|
if ((m = m_pullup(m, iphlen + sizeof(struct udphdr))) == 0) { |
|
udpstat.udps_hdrops++; |
|
return; |
|
} |
|
ip = mtod(m, struct ip *); |
|
} |
|
uh = (struct udphdr *)((caddr_t)ip + iphlen); |
|
|
|
/* destination port of 0 is illegal, based on RFC768. */ |
|
if (uh->uh_dport == 0) |
|
goto bad; |
|
|
|
/* |
|
* Make mbuf data length reflect UDP length. |
|
* If not enough data to reflect UDP length, drop. |
|
*/ |
|
len = ntohs((u_int16_t)uh->uh_ulen); |
|
if (ip->ip_len != iphlen + len) { |
|
if (ip->ip_len < iphlen + len || len < sizeof(struct udphdr)) { |
|
udpstat.udps_badlen++; |
|
goto bad; |
|
} |
|
m_adj(m, iphlen + len - ip->ip_len); |
|
} |
|
/* |
|
* Save a copy of the IP header in case we want restore it |
|
* for sending an ICMP error message in response. |
|
*/ |
|
save_ip = *ip; |
|
|
|
/* |
|
* Checksum extended UDP header and data. |
|
*/ |
|
if (uh->uh_sum) { |
|
switch (m->m_pkthdr.csum_flags & |
|
((m->m_pkthdr.rcvif->if_csum_flags & M_CSUM_UDPv4) | |
|
M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
|
case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD: |
|
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad); |
|
goto badcsum; |
|
|
|
case M_CSUM_UDPv4|M_CSUM_DATA: |
|
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data); |
|
if ((m->m_pkthdr.csum_data ^ 0xffff) != 0) |
|
goto badcsum; |
|
break; |
|
|
|
case M_CSUM_UDPv4: |
|
/* Checksum was okay. */ |
|
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_ok); |
|
break; |
|
|
|
default: |
|
/* Need to compute it ourselves. */ |
|
UDP_CSUM_COUNTER_INCR(&udp_swcsum); |
|
bzero(((struct ipovly *)ip)->ih_x1, |
|
sizeof ((struct ipovly *)ip)->ih_x1); |
|
((struct ipovly *)ip)->ih_len = uh->uh_ulen; |
|
if (in_cksum(m, len + sizeof (struct ip)) != 0) |
|
goto badcsum; |
|
break; |
|
} |
|
} |
|
|
|
/* |
|
* Construct sockaddr format source address. |
|
*/ |
|
udpsrc.sin_family = AF_INET; |
|
udpsrc.sin_len = sizeof(struct sockaddr_in); |
|
udpsrc.sin_addr = ip->ip_src; |
|
udpsrc.sin_port = uh->uh_sport; |
|
bzero((caddr_t)udpsrc.sin_zero, sizeof(udpsrc.sin_zero)); |
|
|
|
if (IN_MULTICAST(ip->ip_dst.s_addr) || |
|
in_broadcast(ip->ip_dst, m->m_pkthdr.rcvif)) { |
|
struct inpcb *last; |
|
/* |
|
* Deliver a multicast or broadcast datagram to *all* sockets |
|
* for which the local and remote addresses and ports match |
|
* those of the incoming datagram. This allows more than |
|
* one process to receive multi/broadcasts on the same port. |
|
* (This really ought to be done for unicast datagrams as |
|
* well, but that would cause problems with existing |
|
* applications that open both address-specific sockets and |
|
* a wildcard socket listening to the same port -- they would |
|
* end up receiving duplicates of every unicast datagram. |
|
* Those applications open the multiple sockets to overcome an |
|
* inadequacy of the UDP socket interface, but for backwards |
|
* compatibility we avoid the problem here rather than |
|
* fixing the interface. Maybe 4.5BSD will remedy this?) |
|
*/ |
|
|
|
iphlen += sizeof(struct udphdr); |
|
/* |
|
* KAME note: usually we drop udpiphdr from mbuf here. |
|
* we need udpiphdr for IPsec processing so we do that later. |
|
*/ |
|
/* |
|
* Locate pcb(s) for datagram. |
|
* (Algorithm copied from raw_intr().) |
|
*/ |
|
last = NULL; |
|
for (inp = udbtable.inpt_queue.cqh_first; |
|
inp != (struct inpcb *)&udbtable.inpt_queue; |
|
inp = inp->inp_queue.cqe_next) { |
|
if (inp->inp_lport != uh->uh_dport) |
|
continue; |
|
if (!in_nullhost(inp->inp_laddr)) { |
|
if (!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
|
continue; |
|
} |
|
if (!in_nullhost(inp->inp_faddr)) { |
|
if (!in_hosteq(inp->inp_faddr, ip->ip_src) || |
|
inp->inp_fport != uh->uh_sport) |
|
continue; |
|
} |
|
|
|
if (last != NULL) { |
|
struct mbuf *n; |
|
|
|
#ifdef IPSEC |
|
/* check AH/ESP integrity. */ |
|
if (last != NULL && ipsec4_in_reject(m, last)) { |
|
ipsecstat.in_polvio++; |
|
/* do not inject data to pcb */ |
|
} else |
|
#endif /*IPSEC*/ |
|
if ((n = m_copy(m, 0, M_COPYALL)) != NULL) { |
|
if (last->inp_flags & INP_CONTROLOPTS |
|
|| last->inp_socket->so_options & |
|
SO_TIMESTAMP) { |
|
ip_savecontrol(last, &opts, |
|
ip, n); |
|
} |
|
m_adj(n, iphlen); |
|
sa = (struct sockaddr *)&udpsrc; |
|
if (sbappendaddr( |
|
&last->inp_socket->so_rcv, |
|
sa, n, opts) == 0) { |
|
m_freem(n); |
|
if (opts) |
|
m_freem(opts); |
|
} else |
|
sorwakeup(last->inp_socket); |
|
opts = 0; |
|
} |
|
} |
|
last = inp; |
|
/* |
|
* Don't look for additional matches if this one does |
|
* not have either the SO_REUSEPORT or SO_REUSEADDR |
|
* socket options set. This heuristic avoids searching |
|
* through all pcbs in the common case of a non-shared |
|
* port. It * assumes that an application will never |
|
* clear these options after setting them. |
|
*/ |
|
if ((last->inp_socket->so_options & |
|
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
|
break; |
|
} |
|
|
|
if (last == NULL) { |
|
/* |
|
* No matching pcb found; discard datagram. |
|
* (No need to send an ICMP Port Unreachable |
|
* for a broadcast or multicast datgram.) |
|
*/ |
|
udpstat.udps_noportbcast++; |
|
goto bad; |
|
} |
|
#ifdef IPSEC |
|
/* check AH/ESP integrity. */ |
|
if (last != NULL && ipsec4_in_reject(m, last)) { |
|
ipsecstat.in_polvio++; |
|
goto bad; |
|
} |
|
#endif /*IPSEC*/ |
|
if (last->inp_flags & INP_CONTROLOPTS || |
|
last->inp_socket->so_options & SO_TIMESTAMP) |
|
ip_savecontrol(last, &opts, ip, m); |
|
m->m_len -= iphlen; |
|
m->m_pkthdr.len -= iphlen; |
|
m->m_data += iphlen; |
|
sa = (struct sockaddr *)&udpsrc; |
|
if (sbappendaddr(&last->inp_socket->so_rcv, sa, m, opts) == 0) { |
|
udpstat.udps_fullsock++; |
|
goto bad; |
|
} |
|
sorwakeup(last->inp_socket); |
|
return; |
|
} |
|
/* |
|
* Locate pcb for datagram. |
|
*/ |
|
inp = in_pcblookup_connect(&udbtable, ip->ip_src, uh->uh_sport, |
|
ip->ip_dst, uh->uh_dport); |
|
if (inp == 0) { |
|
++udpstat.udps_pcbhashmiss; |
|
inp = in_pcblookup_bind(&udbtable, ip->ip_dst, uh->uh_dport); |
|
if (inp == 0) { |
|
if (m->m_flags & (M_BCAST | M_MCAST)) { |
|
udpstat.udps_noportbcast++; |
|
goto bad; |
|
} |
|
udpstat.udps_noport++; |
|
*ip = save_ip; |
|
#ifdef IPKDB |
|
if (checkipkdb(&ip->ip_src, |
|
uh->uh_sport, |
|
uh->uh_dport, |
|
m, |
|
iphlen + sizeof(struct udphdr), |
|
len - sizeof(struct udphdr))) |
|
/* It was a debugger connect packet, just drop it now */ |
|
goto bad; |
|
#endif |
|
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0); |
|
return; |
|
} |
|
} |
|
#ifdef IPSEC |
|
if (inp != NULL && ipsec4_in_reject(m, inp)) { |
|
ipsecstat.in_polvio++; |
|
goto bad; |
|
} |
|
#endif /*IPSEC*/ |
|
|
|
/* |
|
* Stuff source address and datagram in user buffer. |
|
*/ |
|
if (inp->inp_flags & INP_CONTROLOPTS || |
|
inp->inp_socket->so_options & SO_TIMESTAMP) |
|
ip_savecontrol(inp, &opts, ip, m); |
|
iphlen += sizeof(struct udphdr); |
|
m->m_len -= iphlen; |
|
m->m_pkthdr.len -= iphlen; |
|
m->m_data += iphlen; |
|
sa = (struct sockaddr *)&udpsrc; |
|
if (sbappendaddr(&inp->inp_socket->so_rcv, sa, m, opts) == 0) { |
|
udpstat.udps_fullsock++; |
|
goto bad; |
|
} |
|
sorwakeup(inp->inp_socket); |
|
return; |
|
bad: |
|
m_freem(m); |
|
if (opts) |
|
m_freem(opts); |
|
return; |
|
|
|
badcsum: |
|
udpstat.udps_badsum++; |
|
m_freem(m); |
|
} |
|
#endif /*UDP6*/ |
|
|
|
#ifdef INET |
#ifdef INET |
/* |
/* |
* Notify a udp user of an asynchronous error; |
* Notify a udp user of an asynchronous error; |
Line 1287 udp_output(m, va_alist) |
|
Line 865 udp_output(m, va_alist) |
|
int error = 0; |
int error = 0; |
va_list ap; |
va_list ap; |
|
|
|
MCLAIM(m, &udp_tx_mowner); |
va_start(ap, m); |
va_start(ap, m); |
inp = va_arg(ap, struct inpcb *); |
inp = va_arg(ap, struct inpcb *); |
va_end(ap); |
va_end(ap); |
Line 1305 udp_output(m, va_alist) |
|
Line 884 udp_output(m, va_alist) |
|
* Compute the packet length of the IP header, and |
* Compute the packet length of the IP header, and |
* punt if the length looks bogus. |
* punt if the length looks bogus. |
*/ |
*/ |
if ((len + sizeof(struct udpiphdr)) > IP_MAXPACKET) { |
if (len + sizeof(struct udpiphdr) > IP_MAXPACKET) { |
error = EMSGSIZE; |
error = EMSGSIZE; |
goto release; |
goto release; |
} |
} |
Line 1337 udp_output(m, va_alist) |
|
Line 916 udp_output(m, va_alist) |
|
m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
} else |
} else |
ui->ui_sum = 0; |
ui->ui_sum = 0; |
((struct ip *)ui)->ip_len = sizeof (struct udpiphdr) + len; |
((struct ip *)ui)->ip_len = htons(sizeof (struct udpiphdr) + len); |
((struct ip *)ui)->ip_ttl = inp->inp_ip.ip_ttl; /* XXX */ |
((struct ip *)ui)->ip_ttl = inp->inp_ip.ip_ttl; /* XXX */ |
((struct ip *)ui)->ip_tos = inp->inp_ip.ip_tos; /* XXX */ |
((struct ip *)ui)->ip_tos = inp->inp_ip.ip_tos; /* XXX */ |
udpstat.udps_opackets++; |
udpstat.udps_opackets++; |
|
|
#ifdef IPSEC |
|
if (ipsec_setsocket(m, inp->inp_socket) != 0) { |
|
error = ENOBUFS; |
|
goto release; |
|
} |
|
#endif /*IPSEC*/ |
|
|
|
return (ip_output(m, inp->inp_options, &inp->inp_route, |
return (ip_output(m, inp->inp_options, &inp->inp_route, |
inp->inp_socket->so_options & (SO_DONTROUTE | SO_BROADCAST), |
inp->inp_socket->so_options & (SO_DONTROUTE | SO_BROADCAST), |
inp->inp_moptions)); |
inp->inp_moptions, inp->inp_socket)); |
|
|
release: |
release: |
m_freem(m); |
m_freem(m); |
Line 1407 udp_usrreq(so, req, m, nam, control, p) |
|
Line 979 udp_usrreq(so, req, m, nam, control, p) |
|
error = EISCONN; |
error = EISCONN; |
break; |
break; |
} |
} |
|
#ifdef MBUFTRACE |
|
so->so_mowner = &udp_mowner; |
|
so->so_rcv.sb_mowner = &udp_rx_mowner; |
|
so->so_snd.sb_mowner = &udp_tx_mowner; |
|
#endif |
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
error = soreserve(so, udp_sendspace, udp_recvspace); |
error = soreserve(so, udp_sendspace, udp_recvspace); |
if (error) |
if (error) |
Line 1417 udp_usrreq(so, req, m, nam, control, p) |
|
Line 994 udp_usrreq(so, req, m, nam, control, p) |
|
break; |
break; |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
inp->inp_ip.ip_ttl = ip_defttl; |
inp->inp_ip.ip_ttl = ip_defttl; |
#ifdef IPSEC |
|
error = ipsec_init_policy(so, &inp->inp_sp); |
|
if (error != 0) { |
|
in_pcbdetach(inp); |
|
break; |
|
} |
|
#endif /*IPSEC*/ |
|
break; |
break; |
|
|
case PRU_DETACH: |
case PRU_DETACH: |
Line 1482 udp_usrreq(so, req, m, nam, control, p) |
|
Line 1052 udp_usrreq(so, req, m, nam, control, p) |
|
goto die; |
goto die; |
} |
} |
error = in_pcbconnect(inp, nam); |
error = in_pcbconnect(inp, nam); |
if (error) { |
if (error) |
die: |
goto die; |
m_freem(m); |
|
break; |
|
} |
|
} else { |
} else { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
error = ENOTCONN; |
error = ENOTCONN; |
Line 1494 udp_usrreq(so, req, m, nam, control, p) |
|
Line 1061 udp_usrreq(so, req, m, nam, control, p) |
|
} |
} |
} |
} |
error = udp_output(m, inp); |
error = udp_output(m, inp); |
|
m = NULL; |
if (nam) { |
if (nam) { |
in_pcbdisconnect(inp); |
in_pcbdisconnect(inp); |
inp->inp_laddr = laddr; /* XXX */ |
inp->inp_laddr = laddr; /* XXX */ |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
} |
} |
|
die: |
|
if (m) |
|
m_freem(m); |
} |
} |
break; |
break; |
|
|
Line 1559 udp_sysctl(name, namelen, oldp, oldlenp, |
|
Line 1130 udp_sysctl(name, namelen, oldp, oldlenp, |
|
return (sysctl_int(oldp, oldlenp, newp, newlen, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
&udp_sendspace)); |
&udp_sendspace)); |
case UDPCTL_RECVSPACE: |
case UDPCTL_RECVSPACE: |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
&udp_recvspace)); |
&udp_recvspace)); |
default: |
default: |
return (ENOPROTOOPT); |
return (ENOPROTOOPT); |