version 1.101, 2003/06/23 11:02:17 |
version 1.122, 2004/05/25 04:34:00 |
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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 |
|
* 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. |
* |
* |
Line 119 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 115 __KERNEL_RCSID(0, "$NetBSD$"); |
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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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#include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ |
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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 142 struct inpcbtable udbtable; |
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Line 146 struct inpcbtable udbtable; |
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struct udpstat udpstat; |
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 (struct mbuf *, int, struct sockaddr *, |
struct socket *)); |
struct socket *); |
static int udp4_realinput __P((struct sockaddr_in *, struct sockaddr_in *, |
static int udp4_realinput (struct sockaddr_in *, struct sockaddr_in *, |
struct mbuf *, int)); |
struct mbuf *, int); |
#endif |
#endif |
#ifdef INET6 |
#ifdef INET6 |
static void udp6_sendup __P((struct mbuf *, int, struct sockaddr *, |
static void udp6_sendup (struct mbuf *, int, struct sockaddr *, |
struct socket *)); |
struct socket *); |
static int udp6_realinput __P((int, struct sockaddr_in6 *, |
static int udp6_realinput (int, struct sockaddr_in6 *, |
struct sockaddr_in6 *, struct mbuf *, int)); |
struct sockaddr_in6 *, struct mbuf *, int); |
#endif |
#endif |
#ifdef INET |
#ifdef INET |
static void udp_notify __P((struct inpcb *, int)); |
static void udp_notify (struct inpcb *, int); |
#endif |
#endif |
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|
#ifndef UDBHASHSIZE |
#ifndef UDBHASHSIZE |
Line 182 struct evcnt udp_swcsum = EVCNT_INITIALI |
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Line 186 struct evcnt udp_swcsum = EVCNT_INITIALI |
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|
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#define UDP_CSUM_COUNTER_INCR(ev) (ev)->ev_count++ |
#define UDP_CSUM_COUNTER_INCR(ev) (ev)->ev_count++ |
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|
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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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#else |
#else |
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#define UDP_CSUM_COUNTER_INCR(ev) /* nothing */ |
#define UDP_CSUM_COUNTER_INCR(ev) /* nothing */ |
Line 189 struct evcnt udp_swcsum = EVCNT_INITIALI |
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Line 198 struct evcnt udp_swcsum = EVCNT_INITIALI |
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#endif /* UDP_CSUM_COUNTERS */ |
#endif /* UDP_CSUM_COUNTERS */ |
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void |
void |
udp_init() |
udp_init(void) |
{ |
{ |
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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 |
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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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MOWNER_ATTACH(&udp_tx_mowner); |
MOWNER_ATTACH(&udp_tx_mowner); |
MOWNER_ATTACH(&udp_rx_mowner); |
MOWNER_ATTACH(&udp_rx_mowner); |
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#ifdef INET |
#ifdef INET |
void |
void |
#if __STDC__ |
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udp_input(struct mbuf *m, ...) |
udp_input(struct mbuf *m, ...) |
#else |
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udp_input(m, va_alist) |
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struct mbuf *m; |
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va_dcl |
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#endif |
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{ |
{ |
va_list ap; |
va_list ap; |
struct sockaddr_in src, dst; |
struct sockaddr_in src, dst; |
Line 269 udp_input(m, va_alist) |
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Line 263 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_rx & 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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htons(hw_csum + len + 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. */ |
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#ifdef INET6 |
#ifdef INET6 |
int |
int |
udp6_input(mp, offp, proto) |
udp6_input(struct mbuf **mp, int *offp, int proto) |
struct mbuf **mp; |
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int *offp, proto; |
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{ |
{ |
struct mbuf *m = *mp; |
struct mbuf *m = *mp; |
int off = *offp; |
int off = *offp; |
Line 423 udp6_input(mp, offp, proto) |
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Line 421 udp6_input(mp, offp, proto) |
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/* |
/* |
* Checksum extended UDP header and data. |
* Checksum extended UDP header and data. |
*/ |
*/ |
if (uh->uh_sum == 0) |
if (uh->uh_sum == 0) { |
udp6stat.udp6s_nosum++; |
udp6stat.udp6s_nosum++; |
else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) { |
goto bad; |
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} |
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if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) { |
udp6stat.udp6s_badsum++; |
udp6stat.udp6s_badsum++; |
goto bad; |
goto bad; |
} |
} |
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#ifdef INET |
#ifdef INET |
static void |
static void |
udp4_sendup(m, off, src, so) |
udp4_sendup(struct mbuf *m, int off /* offset of data portion */, |
struct mbuf *m; |
struct sockaddr *src, struct socket *so) |
int off; /* offset of data portion */ |
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struct sockaddr *src; |
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struct socket *so; |
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{ |
{ |
struct mbuf *opts = NULL; |
struct mbuf *opts = NULL; |
struct mbuf *n; |
struct mbuf *n; |
Line 490 udp4_sendup(m, off, src, so) |
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Line 487 udp4_sendup(m, off, src, so) |
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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) |
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icmp_error(n, ICMP_UNREACH, ICMP_UNREACH_ADMIN_PROHIBIT, |
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0, 0); |
return; |
return; |
} |
} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
Line 520 udp4_sendup(m, off, src, so) |
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Line 520 udp4_sendup(m, off, src, so) |
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#ifdef INET6 |
#ifdef INET6 |
static void |
static void |
udp6_sendup(m, off, src, so) |
udp6_sendup(struct mbuf *m, int off /* offset of data portion */, |
struct mbuf *m; |
struct sockaddr *src, struct socket *so) |
int off; /* offset of data portion */ |
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struct sockaddr *src; |
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struct socket *so; |
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{ |
{ |
struct mbuf *opts = NULL; |
struct mbuf *opts = NULL; |
struct mbuf *n; |
struct mbuf *n; |
Line 536 udp6_sendup(m, off, src, so) |
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Line 533 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 565 udp6_sendup(m, off, src, so) |
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Line 565 udp6_sendup(m, off, src, so) |
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#ifdef INET |
#ifdef INET |
static int |
static int |
udp4_realinput(src, dst, m, off) |
udp4_realinput(struct sockaddr_in *src, struct sockaddr_in *dst, |
struct sockaddr_in *src; |
struct mbuf *m, int off /* offset of udphdr */) |
struct sockaddr_in *dst; |
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struct mbuf *m; |
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int off; /* offset of udphdr */ |
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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 612 udp4_realinput(src, dst, m, off) |
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Line 610 udp4_realinput(src, dst, m, off) |
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/* |
/* |
* Locate pcb(s) for datagram. |
* Locate pcb(s) for datagram. |
*/ |
*/ |
CIRCLEQ_FOREACH(inp, &udbtable.inpt_queue, inp_queue) { |
CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) { |
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inp = (struct inpcb *)inph; |
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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)) { |
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#ifdef INET6 |
#ifdef INET6 |
static int |
static int |
udp6_realinput(af, src, dst, m, off) |
udp6_realinput(int af, struct sockaddr_in6 *src, struct sockaddr_in6 *dst, |
int af; /* af on packet */ |
struct mbuf *m, int off) |
struct sockaddr_in6 *src; |
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struct sockaddr_in6 *dst; |
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struct mbuf *m; |
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int off; /* offset of udphdr */ |
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{ |
{ |
u_int16_t sport, dport; |
u_int16_t sport, dport; |
int rcvcnt; |
int rcvcnt; |
struct in6_addr src6, dst6; |
struct in6_addr src6, dst6; |
const struct in_addr *dst4; |
const struct in_addr *dst4; |
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struct inpcb_hdr *inph; |
struct in6pcb *in6p; |
struct in6pcb *in6p; |
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rcvcnt = 0; |
rcvcnt = 0; |
Line 716 udp6_realinput(af, src, dst, m, off) |
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Line 715 udp6_realinput(af, src, dst, m, off) |
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/* |
/* |
* 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) |
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continue; |
|
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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)) { |
Line 758 udp6_realinput(af, src, dst, m, off) |
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Line 760 udp6_realinput(af, src, dst, m, off) |
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/* |
/* |
* 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) |
return rcvcnt; |
return rcvcnt; |
} |
} |
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* just wake up so that he can collect error status. |
* just wake up so that he can collect error status. |
*/ |
*/ |
static void |
static void |
udp_notify(inp, errno) |
udp_notify(struct inpcb *inp, int errno) |
struct inpcb *inp; |
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int errno; |
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{ |
{ |
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inp->inp_socket->so_error = errno; |
inp->inp_socket->so_error = errno; |
sorwakeup(inp->inp_socket); |
sorwakeup(inp->inp_socket); |
sowwakeup(inp->inp_socket); |
sowwakeup(inp->inp_socket); |
} |
} |
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void * |
void * |
udp_ctlinput(cmd, sa, v) |
udp_ctlinput(int cmd, struct sockaddr *sa, void *v) |
int cmd; |
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struct sockaddr *sa; |
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void *v; |
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{ |
{ |
struct ip *ip = v; |
struct ip *ip = v; |
struct udphdr *uh; |
struct udphdr *uh; |
void (*notify) __P((struct inpcb *, int)) = udp_notify; |
void (*notify)(struct inpcb *, int) = udp_notify; |
int errno; |
int errno; |
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if (sa->sa_family != AF_INET |
if (sa->sa_family != AF_INET |
Line 828 udp_ctlinput(cmd, sa, v) |
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Line 824 udp_ctlinput(cmd, sa, v) |
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} |
} |
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int |
int |
#if __STDC__ |
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udp_output(struct mbuf *m, ...) |
udp_output(struct mbuf *m, ...) |
#else |
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udp_output(m, va_alist) |
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struct mbuf *m; |
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va_dcl |
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#endif |
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{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
struct udpiphdr *ui; |
struct udpiphdr *ui; |
Line 898 udp_output(m, va_alist) |
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Line 888 udp_output(m, va_alist) |
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((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++; |
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#ifdef IPSEC |
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if (ipsec_setsocket(m, inp->inp_socket) != 0) { |
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error = ENOBUFS; |
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goto release; |
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} |
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#endif /*IPSEC*/ |
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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)); |
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release: |
release: |
m_freem(m); |
m_freem(m); |
Line 920 int udp_recvspace = 40 * (1024 + sizeof( |
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Line 903 int udp_recvspace = 40 * (1024 + sizeof( |
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/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
udp_usrreq(so, req, m, nam, control, p) |
udp_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, |
struct socket *so; |
struct mbuf *control, struct proc *p) |
int req; |
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struct mbuf *m, *nam, *control; |
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struct proc *p; |
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{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
int s; |
int s; |
Line 1008 udp_usrreq(so, req, m, nam, control, p) |
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Line 988 udp_usrreq(so, req, m, nam, control, p) |
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so->so_state &= ~SS_ISCONNECTED; /* XXX */ |
so->so_state &= ~SS_ISCONNECTED; /* XXX */ |
in_pcbdisconnect(inp); |
in_pcbdisconnect(inp); |
inp->inp_laddr = zeroin_addr; /* XXX */ |
inp->inp_laddr = zeroin_addr; /* XXX */ |
if (inp->inp_ia != NULL) { |
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LIST_REMOVE(inp, inp_ialink); |
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IFAFREE(&inp->inp_ia->ia_ifa); |
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inp->inp_ia = NULL; |
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} |
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in_pcbstate(inp, INP_BOUND); /* XXX */ |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
break; |
break; |
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Line 1057 udp_usrreq(so, req, m, nam, control, p) |
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Line 1032 udp_usrreq(so, req, m, nam, control, p) |
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in_pcbstate(inp, INP_BOUND); /* XXX */ |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
} |
} |
die: |
die: |
if (inp->inp_ia != NULL && in_nullhost(inp->inp_laddr)) { |
|
LIST_REMOVE(inp, inp_ialink); |
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IFAFREE(&inp->inp_ia->ia_ifa); |
|
inp->inp_ia = NULL; |
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} |
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if (m) |
if (m) |
m_freem(m); |
m_freem(m); |
} |
} |
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/* |
/* |
* Sysctl for udp variables. |
* Sysctl for udp variables. |
*/ |
*/ |
int |
SYSCTL_SETUP(sysctl_net_inet_udp_setup, "sysctl net.inet.udp subtree setup") |
udp_sysctl(name, namelen, oldp, oldlenp, newp, newlen) |
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int *name; |
|
u_int namelen; |
|
void *oldp; |
|
size_t *oldlenp; |
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void *newp; |
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size_t newlen; |
|
{ |
{ |
/* All sysctl names at this level are terminal. */ |
|
if (namelen != 1) |
sysctl_createv(clog, 0, NULL, NULL, |
return (ENOTDIR); |
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "net", NULL, |
switch (name[0]) { |
NULL, 0, NULL, 0, |
case UDPCTL_CHECKSUM: |
CTL_NET, CTL_EOL); |
return (sysctl_int(oldp, oldlenp, newp, newlen, &udpcksum)); |
sysctl_createv(clog, 0, NULL, NULL, |
case UDPCTL_SENDSPACE: |
CTLFLAG_PERMANENT, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
CTLTYPE_NODE, "inet", NULL, |
&udp_sendspace)); |
NULL, 0, NULL, 0, |
case UDPCTL_RECVSPACE: |
CTL_NET, PF_INET, CTL_EOL); |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
sysctl_createv(clog, 0, NULL, NULL, |
&udp_recvspace)); |
CTLFLAG_PERMANENT, |
default: |
CTLTYPE_NODE, "udp", |
return (ENOPROTOOPT); |
SYSCTL_DESCR("UDPv4 related settings"), |
} |
NULL, 0, NULL, 0, |
/* NOTREACHED */ |
CTL_NET, PF_INET, IPPROTO_UDP, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "checksum", |
|
SYSCTL_DESCR("Compute and check UDP checksums"), |
|
NULL, 0, &udpcksum, 0, |
|
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_CHECKSUM, |
|
CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "sendspace", |
|
SYSCTL_DESCR("Default UDP send buffer size"), |
|
NULL, 0, &udp_sendspace, 0, |
|
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_SENDSPACE, |
|
CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "recvspace", |
|
SYSCTL_DESCR("Default UDP receive buffer size"), |
|
NULL, 0, &udp_recvspace, 0, |
|
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_RECVSPACE, |
|
CTL_EOL); |
} |
} |
#endif |
#endif |