version 1.77, 2001/05/31 19:56:13 |
version 1.84, 2001/09/17 17:27:01 |
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#include "opt_inet.h" |
#include "opt_inet.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
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#include "opt_inet_csum.h" |
#include "opt_ipkdb.h" |
#include "opt_ipkdb.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
Line 160 static void udp_notify __P((struct inpcb |
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Line 161 static void udp_notify __P((struct inpcb |
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#endif |
#endif |
int udbhashsize = UDBHASHSIZE; |
int udbhashsize = UDBHASHSIZE; |
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#ifdef UDP_CSUM_COUNTERS |
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#include <sys/device.h> |
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struct evcnt udp_hwcsum_bad = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp", "hwcsum bad"); |
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struct evcnt udp_hwcsum_ok = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp", "hwcsum ok"); |
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struct evcnt udp_hwcsum_data = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp", "hwcsum data"); |
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struct evcnt udp_swcsum = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp", "swcsum"); |
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#define UDP_CSUM_COUNTER_INCR(ev) (ev)->ev_count++ |
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#else |
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#define UDP_CSUM_COUNTER_INCR(ev) /* nothing */ |
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#endif /* UDP_CSUM_COUNTERS */ |
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void |
void |
udp_init() |
udp_init() |
{ |
{ |
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#ifdef INET |
#ifdef INET |
in_pcbinit(&udbtable, udbhashsize, udbhashsize); |
in_pcbinit(&udbtable, udbhashsize, udbhashsize); |
#endif |
#endif |
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#ifdef UDP_CSUM_COUNTERS |
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evcnt_attach_static(&udp_hwcsum_bad); |
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evcnt_attach_static(&udp_hwcsum_ok); |
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evcnt_attach_static(&udp_hwcsum_data); |
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evcnt_attach_static(&udp_swcsum); |
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#endif /* UDP_CSUM_COUNTERS */ |
} |
} |
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#ifndef UDP6 |
#ifndef UDP6 |
Line 255 udp_input(m, va_alist) |
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Line 283 udp_input(m, va_alist) |
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* Checksum extended UDP header and data. |
* Checksum extended UDP header and data. |
*/ |
*/ |
if (uh->uh_sum) { |
if (uh->uh_sum) { |
if (in4_cksum(m, IPPROTO_UDP, iphlen, len) != 0) { |
switch (m->m_pkthdr.csum_flags & |
udpstat.udps_badsum++; |
((m->m_pkthdr.rcvif->if_csum_flags_rx & M_CSUM_UDPv4) | |
m_freem(m); |
M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
return; |
case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD: |
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UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad); |
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goto badcsum; |
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case M_CSUM_UDPv4|M_CSUM_DATA: |
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UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data); |
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if ((m->m_pkthdr.csum_data ^ 0xffff) != 0) |
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goto badcsum; |
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break; |
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case M_CSUM_UDPv4: |
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/* Checksum was okay. */ |
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UDP_CSUM_COUNTER_INCR(&udp_hwcsum_ok); |
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break; |
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default: |
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/* Need to compute it ourselves. */ |
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UDP_CSUM_COUNTER_INCR(&udp_swcsum); |
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if (in4_cksum(m, IPPROTO_UDP, iphlen, len) != 0) |
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goto badcsum; |
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break; |
} |
} |
} |
} |
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Line 322 udp_input(m, va_alist) |
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Line 370 udp_input(m, va_alist) |
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bad: |
bad: |
if (m) |
if (m) |
m_freem(m); |
m_freem(m); |
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return; |
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badcsum: |
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m_freem(m); |
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udpstat.udps_badsum++; |
} |
} |
#endif |
#endif |
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Line 483 udp4_sendup(m, off, src, so) |
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Line 536 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 616 udp4_realinput(src, dst, m, off) |
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Line 670 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 636 udp4_realinput(src, dst, m, off) |
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Line 678 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, |
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ICMP_UNREACH_PORT, 0, 0); |
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} |
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#endif |
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return rcvcnt; |
return rcvcnt; |
} |
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} |
} |
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udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket); |
udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket); |
Line 705 udp6_realinput(af, src, dst, m, off) |
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Line 723 udp6_realinput(af, src, dst, m, off) |
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struct mbuf *m; |
struct mbuf *m; |
int off; /* offset of udphdr */ |
int off; /* offset of udphdr */ |
{ |
{ |
u_int16_t *sport, *dport; |
u_int16_t sport, dport; |
int rcvcnt; |
int rcvcnt; |
struct in6_addr *src6, *dst6; |
struct in6_addr src6, dst6; |
struct in_addr *dst4; |
const struct in_addr *dst4; |
struct in6pcb *in6p; |
struct in6pcb *in6p; |
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rcvcnt = 0; |
rcvcnt = 0; |
Line 719 udp6_realinput(af, src, dst, m, off) |
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Line 737 udp6_realinput(af, src, dst, m, off) |
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if (src->sin6_family != AF_INET6 || dst->sin6_family != AF_INET6) |
if (src->sin6_family != AF_INET6 || dst->sin6_family != AF_INET6) |
goto bad; |
goto bad; |
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src6 = &src->sin6_addr; |
in6_embedscope(&src6, src, NULL, NULL); |
sport = &src->sin6_port; |
sport = src->sin6_port; |
dst6 = &dst->sin6_addr; |
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_addr32[12]; |
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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; |
struct in6pcb *last; |
/* |
/* |
* Deliver a multicast or broadcast datagram to *all* sockets |
* Deliver a multicast or broadcast datagram to *all* sockets |
Line 753 udp6_realinput(af, src, dst, m, off) |
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Line 771 udp6_realinput(af, src, dst, m, off) |
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*/ |
*/ |
for (in6p = udb6.in6p_next; in6p != &udb6; |
for (in6p = udb6.in6p_next; in6p != &udb6; |
in6p = in6p->in6p_next) { |
in6p = in6p->in6p_next) { |
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)) |
!in6_mcmatch(in6p, &dst6, m->m_pkthdr.rcvif)) |
continue; |
continue; |
} |
} |
#ifndef INET6_BINDV6ONLY |
#ifndef INET6_BINDV6ONLY |
else { |
else { |
if (IN6_IS_ADDR_V4MAPPED(dst6) |
if (IN6_IS_ADDR_V4MAPPED(&dst6) && |
&& (in6p->in6p_flags & IN6P_BINDV6ONLY)) |
(in6p->in6p_flags & IN6P_BINDV6ONLY)) |
continue; |
continue; |
} |
} |
#endif |
#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, src6) |
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, |
|| in6p->in6p_fport != *sport) |
&src6) || in6p->in6p_fport != sport) |
continue; |
continue; |
} |
} |
#ifndef INET6_BINDV6ONLY |
#ifndef INET6_BINDV6ONLY |
else { |
else { |
if (IN6_IS_ADDR_V4MAPPED(src6) |
if (IN6_IS_ADDR_V4MAPPED(&src6) && |
&& (in6p->in6p_flags & IN6P_BINDV6ONLY)) |
(in6p->in6p_flags & IN6P_BINDV6ONLY)) |
continue; |
continue; |
} |
} |
#endif |
#endif |
Line 797 udp6_realinput(af, src, dst, m, off) |
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Line 815 udp6_realinput(af, 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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switch (af) { |
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case AF_INET: |
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udpstat.udps_noportbcast++; |
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break; |
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case AF_INET6: |
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udp6stat.udp6s_noportmcast++; |
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break; |
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} |
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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. |
*/ |
*/ |
in6p = in6_pcblookup_connect(&udb6, src6, *sport, |
in6p = in6_pcblookup_connect(&udb6, &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(&udb6, &dst6, dport, 0); |
if (in6p == 0) { |
if (in6p == 0) |
#if 0 |
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struct mbuf *n; |
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n = m_copy(m, 0, M_COPYALL); |
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switch (af) { |
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case AF_INET: |
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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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if (n != NULL) |
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icmp_error(n, ICMP_UNREACH, |
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ICMP_UNREACH_PORT, 0, 0); |
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break; |
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case AF_INET6: |
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if (m->m_flags & M_MCAST) { |
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udp6stat.udp6s_noportmcast++; |
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goto bad; |
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} |
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udp6stat.udp6s_noport++; |
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if (n != NULL) |
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icmp6_error(n, ICMP6_DST_UNREACH, |
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ICMP6_DST_UNREACH_NOPORT, 0); |
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break; |
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} |
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#endif |
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return rcvcnt; |
return rcvcnt; |
} |
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} |
} |
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udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket); |
udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket); |
Line 946 udp_input(m, va_alist) |
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Line 917 udp_input(m, va_alist) |
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* Checksum extended UDP header and data. |
* Checksum extended UDP header and data. |
*/ |
*/ |
if (uh->uh_sum) { |
if (uh->uh_sum) { |
bzero(((struct ipovly *)ip)->ih_x1, |
switch (m->m_pkthdr.csum_flags & |
sizeof ((struct ipovly *)ip)->ih_x1); |
((m->m_pkthdr.rcvif->if_csum_flags & M_CSUM_UDPv4) | |
((struct ipovly *)ip)->ih_len = uh->uh_ulen; |
M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
if (in_cksum(m, len + sizeof (struct ip)) != 0) { |
case M_CSUM_UDPv4|M_CSUM_TCP_UDP_BAD: |
udpstat.udps_badsum++; |
UDP_CSUM_COUNTER_INCR(&udp_hwcsum_bad); |
m_freem(m); |
goto badcsum; |
return; |
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case M_CSUM_UDPv4|M_CSUM_DATA: |
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UDP_CSUM_COUNTER_INCR(&udp_hwcsum_data); |
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if ((m->m_pkthdr.csum_data ^ 0xffff) != 0) |
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goto badcsum; |
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break; |
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case M_CSUM_UDPv4: |
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/* Checksum was okay. */ |
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UDP_CSUM_COUNTER_INCR(&udp_hwcsum_ok); |
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break; |
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default: |
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/* Need to compute it ourselves. */ |
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UDP_CSUM_COUNTER_INCR(&udp_swcsum); |
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bzero(((struct ipovly *)ip)->ih_x1, |
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sizeof ((struct ipovly *)ip)->ih_x1); |
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((struct ipovly *)ip)->ih_len = uh->uh_ulen; |
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if (in_cksum(m, len + sizeof (struct ip)) != 0) |
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goto badcsum; |
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break; |
} |
} |
} |
} |
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Line 1034 udp_input(m, va_alist) |
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Line 1025 udp_input(m, va_alist) |
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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(last->inp_socket); |
sorwakeup(last->inp_socket); |
opts = 0; |
opts = 0; |
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m_freem(m); |
m_freem(m); |
if (opts) |
if (opts) |
m_freem(opts); |
m_freem(opts); |
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return; |
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badcsum: |
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udpstat.udps_badsum++; |
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m_freem(m); |
} |
} |
#endif /*UDP6*/ |
#endif /*UDP6*/ |
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Line 1237 udp_output(m, va_alist) |
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Line 1234 udp_output(m, va_alist) |
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* and addresses and length put into network format. |
* and addresses and length put into network format. |
*/ |
*/ |
ui = mtod(m, struct udpiphdr *); |
ui = mtod(m, struct udpiphdr *); |
bzero(ui->ui_x1, sizeof ui->ui_x1); |
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ui->ui_pr = IPPROTO_UDP; |
ui->ui_pr = IPPROTO_UDP; |
ui->ui_len = htons((u_int16_t)len + sizeof (struct udphdr)); |
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ui->ui_src = inp->inp_laddr; |
ui->ui_src = inp->inp_laddr; |
ui->ui_dst = inp->inp_faddr; |
ui->ui_dst = inp->inp_faddr; |
ui->ui_sport = inp->inp_lport; |
ui->ui_sport = inp->inp_lport; |
ui->ui_dport = inp->inp_fport; |
ui->ui_dport = inp->inp_fport; |
ui->ui_ulen = ui->ui_len; |
ui->ui_ulen = htons((u_int16_t)len + sizeof(struct udphdr)); |
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/* |
/* |
* Stuff checksum and output datagram. |
* Set up checksum and output datagram. |
*/ |
*/ |
ui->ui_sum = 0; |
|
if (udpcksum) { |
if (udpcksum) { |
if ((ui->ui_sum = in_cksum(m, sizeof (struct udpiphdr) + len)) == 0) |
/* |
ui->ui_sum = 0xffff; |
* XXX Cache pseudo-header checksum part for |
} |
* XXX "connected" UDP sockets. |
|
*/ |
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ui->ui_sum = in_cksum_phdr(ui->ui_src.s_addr, |
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ui->ui_dst.s_addr, htons((u_int16_t)len + |
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sizeof(struct udphdr) + IPPROTO_UDP)); |
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m->m_pkthdr.csum_flags = M_CSUM_UDPv4; |
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m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
|
} else |
|
ui->ui_sum = 0; |
((struct ip *)ui)->ip_len = sizeof (struct udpiphdr) + len; |
((struct ip *)ui)->ip_len = 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 */ |
Line 1296 udp_usrreq(so, req, m, nam, control, p) |
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Line 1298 udp_usrreq(so, req, m, nam, control, p) |
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(struct ifnet *)control, p)); |
(struct ifnet *)control, p)); |
|
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if (req == PRU_PURGEIF) { |
if (req == PRU_PURGEIF) { |
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in_pcbpurgeif0(&udbtable, (struct ifnet *)control); |
in_purgeif((struct ifnet *)control); |
in_purgeif((struct ifnet *)control); |
in_pcbpurgeif(&udbtable, (struct ifnet *)control); |
in_pcbpurgeif(&udbtable, (struct ifnet *)control); |
return (0); |
return (0); |
Line 1333 udp_usrreq(so, req, m, nam, control, p) |
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Line 1336 udp_usrreq(so, req, m, nam, control, p) |
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break; |
break; |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
inp->inp_ip.ip_ttl = ip_defttl; |
inp->inp_ip.ip_ttl = ip_defttl; |
#ifdef IPSEC |
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error = ipsec_init_policy(so, &inp->inp_sp); |
|
if (error != 0) { |
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in_pcbdetach(inp); |
|
break; |
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} |
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#endif /*IPSEC*/ |
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break; |
break; |
|
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case PRU_DETACH: |
case PRU_DETACH: |