version 1.183.2.2, 2012/10/30 17:22:47 |
version 1.190.2.1, 2013/07/17 03:16:31 |
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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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|
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/* |
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* UDP protocol implementation. |
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* Per RFC 768, August, 1980. |
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*/ |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
|
|
Line 71 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 76 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_mbuftrace.h" |
#include "opt_mbuftrace.h" |
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|
#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/malloc.h> |
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#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/errno.h> |
|
#include <sys/stat.h> |
|
#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/proc.h> |
#include <sys/kmem.h> |
#include <sys/domain.h> |
#include <sys/domain.h> |
#include <sys/sysctl.h> |
#include <sys/sysctl.h> |
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Line 105 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 107 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/in6_pcb.h> |
#include <netinet6/in6_pcb.h> |
#include <netinet6/udp6_var.h> |
#include <netinet6/udp6_var.h> |
#include <netinet6/udp6_private.h> |
#include <netinet6/udp6_private.h> |
#include <netinet6/scope6_var.h> |
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#endif |
#endif |
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#ifndef INET6 |
#ifndef INET6 |
Line 113 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 114 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet/ip6.h> |
#include <netinet/ip6.h> |
#endif |
#endif |
|
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#include "faith.h" |
#ifdef IPSEC |
#if defined(NFAITH) && NFAITH > 0 |
|
#include <net/if_faith.h> |
|
#endif |
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|
|
#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
#include <netipsec/ipsec.h> |
#include <netipsec/ipsec_var.h> |
#include <netipsec/ipsec_var.h> |
#include <netipsec/ipsec_private.h> |
#include <netipsec/ipsec_private.h> |
Line 126 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 122 __KERNEL_RCSID(0, "$NetBSD$"); |
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#ifdef INET6 |
#ifdef INET6 |
#include <netipsec/ipsec6.h> |
#include <netipsec/ipsec6.h> |
#endif |
#endif |
#endif /* FAST_IPSEC */ |
#endif /* IPSEC */ |
|
|
#ifdef COMPAT_50 |
#ifdef COMPAT_50 |
#include <compat/sys/socket.h> |
#include <compat/sys/socket.h> |
Line 136 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 132 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <ipkdb/ipkdb.h> |
#include <ipkdb/ipkdb.h> |
#endif |
#endif |
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/* |
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* UDP protocol implementation. |
|
* Per RFC 768, August, 1980. |
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*/ |
|
int udpcksum = 1; |
int udpcksum = 1; |
int udp_do_loopback_cksum = 0; |
int udp_do_loopback_cksum = 0; |
|
|
struct inpcbtable udbtable; |
inpcbtable_t * udbtable __read_mostly; |
|
percpu_t * udpstat_percpu; |
percpu_t *udpstat_percpu; |
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|
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#ifdef INET |
#ifdef INET |
#ifdef IPSEC_NAT_T |
#ifdef IPSEC |
static int udp4_espinudp (struct mbuf **, int, struct sockaddr *, |
static int udp4_espinudp (struct mbuf **, int, struct sockaddr *, |
struct socket *); |
struct socket *); |
#endif |
#endif |
Line 158 static int udp4_realinput (struct sockad |
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Line 149 static int udp4_realinput (struct sockad |
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struct mbuf **, int); |
struct mbuf **, int); |
static int udp4_input_checksum(struct mbuf *, const struct udphdr *, int, int); |
static int udp4_input_checksum(struct mbuf *, const struct udphdr *, int, int); |
#endif |
#endif |
#ifdef INET6 |
|
static void udp6_sendup (struct mbuf *, int, struct sockaddr *, |
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struct socket *); |
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static int udp6_realinput (int, struct sockaddr_in6 *, |
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struct sockaddr_in6 *, struct mbuf *, int); |
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static int udp6_input_checksum(struct mbuf *, const struct udphdr *, int, int); |
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#endif |
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#ifdef INET |
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static void udp_notify (struct inpcb *, int); |
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#endif |
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#ifndef UDBHASHSIZE |
#ifndef UDBHASHSIZE |
#define UDBHASHSIZE 128 |
#define UDBHASHSIZE 128 |
#endif |
#endif |
int udbhashsize = UDBHASHSIZE; |
int udbhashsize = UDBHASHSIZE; |
|
|
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static int udp_sendspace = 9216; |
|
static int udp_recvspace = 40 * (1024 + sizeof(struct sockaddr_in)); |
|
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#ifdef MBUFTRACE |
#ifdef MBUFTRACE |
struct mowner udp_mowner = MOWNER_INIT("udp", ""); |
struct mowner udp_mowner = MOWNER_INIT("udp", ""); |
struct mowner udp_rx_mowner = MOWNER_INIT("udp", "rx"); |
struct mowner udp_rx_mowner = MOWNER_INIT("udp", "rx"); |
Line 199 EVCNT_ATTACH_STATIC(udp_hwcsum_data); |
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Line 183 EVCNT_ATTACH_STATIC(udp_hwcsum_data); |
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EVCNT_ATTACH_STATIC(udp_swcsum); |
EVCNT_ATTACH_STATIC(udp_swcsum); |
#endif /* defined(INET) */ |
#endif /* defined(INET) */ |
|
|
#if defined(INET6) |
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struct evcnt udp6_hwcsum_bad = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp6", "hwcsum bad"); |
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struct evcnt udp6_hwcsum_ok = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp6", "hwcsum ok"); |
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struct evcnt udp6_hwcsum_data = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp6", "hwcsum data"); |
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struct evcnt udp6_swcsum = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
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NULL, "udp6", "swcsum"); |
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|
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EVCNT_ATTACH_STATIC(udp6_hwcsum_bad); |
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EVCNT_ATTACH_STATIC(udp6_hwcsum_ok); |
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EVCNT_ATTACH_STATIC(udp6_hwcsum_data); |
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EVCNT_ATTACH_STATIC(udp6_swcsum); |
|
#endif /* defined(INET6) */ |
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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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#else |
#else |
|
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#define UDP_CSUM_COUNTER_INCR(ev) /* nothing */ |
#define UDP_CSUM_COUNTER_INCR(ev) /* nothing */ |
|
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#endif /* UDP_CSUM_COUNTERS */ |
#endif /* UDP_CSUM_COUNTERS */ |
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static void sysctl_net_inet_udp_setup(struct sysctllog **); |
static void sysctl_net_inet_udp_setup(struct sysctllog **); |
Line 228 static void sysctl_net_inet_udp_setup(st |
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Line 193 static void sysctl_net_inet_udp_setup(st |
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void |
void |
udp_init(void) |
udp_init(void) |
{ |
{ |
|
udbtable = inpcb_init(udbhashsize, udbhashsize, 0); |
sysctl_net_inet_udp_setup(NULL); |
sysctl_net_inet_udp_setup(NULL); |
|
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in_pcbinit(&udbtable, udbhashsize, udbhashsize); |
|
|
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MOWNER_ATTACH(&udp_tx_mowner); |
MOWNER_ATTACH(&udp_tx_mowner); |
MOWNER_ATTACH(&udp_rx_mowner); |
MOWNER_ATTACH(&udp_rx_mowner); |
MOWNER_ATTACH(&udp_mowner); |
MOWNER_ATTACH(&udp_mowner); |
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#ifdef INET |
#ifdef INET |
udpstat_percpu = percpu_alloc(sizeof(uint64_t) * UDP_NSTATS); |
udpstat_percpu = percpu_alloc(sizeof(uint64_t) * UDP_NSTATS); |
#endif |
#endif |
#ifdef INET6 |
|
udp6stat_percpu = percpu_alloc(sizeof(uint64_t) * UDP6_NSTATS); |
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#endif |
|
} |
} |
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/* |
/* |
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udp_input_checksum(int af, struct mbuf *m, const struct udphdr *uh, |
udp_input_checksum(int af, struct mbuf *m, const struct udphdr *uh, |
int iphlen, int len) |
int iphlen, int len) |
{ |
{ |
|
|
switch (af) { |
switch (af) { |
#ifdef INET |
#ifdef INET |
case AF_INET: |
case AF_INET: |
Line 263 udp_input_checksum(int af, struct mbuf * |
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Line 222 udp_input_checksum(int af, struct mbuf * |
|
case AF_INET6: |
case AF_INET6: |
return udp6_input_checksum(m, uh, iphlen, len); |
return udp6_input_checksum(m, uh, iphlen, len); |
#endif |
#endif |
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default: |
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KASSERT(false); |
} |
} |
#ifdef DIAGNOSTIC |
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panic("udp_input_checksum: unknown af %d", af); |
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#endif |
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/* NOTREACHED */ |
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return -1; |
return -1; |
} |
} |
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Line 404 udp_input(struct mbuf *m, ...) |
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Line 361 udp_input(struct mbuf *m, ...) |
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UDP_STATINC(UDP_STAT_HDROPS); |
UDP_STATINC(UDP_STAT_HDROPS); |
return; |
return; |
} |
} |
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if (m == NULL) { |
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/* |
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* packet has been processed by ESP stuff - |
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* e.g. dropped NAT-T-keep-alive-packet ... |
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*/ |
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return; |
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} |
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ip = mtod(m, struct ip *); |
#ifdef INET6 |
#ifdef INET6 |
if (IN_MULTICAST(ip->ip_dst.s_addr) || n == 0) { |
if (IN_MULTICAST(ip->ip_dst.s_addr) || n == 0) { |
struct sockaddr_in6 src6, dst6; |
struct sockaddr_in6 src6, dst6; |
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badcsum: |
badcsum: |
m_freem(m); |
m_freem(m); |
} |
} |
#endif |
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#ifdef INET6 |
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static int |
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udp6_input_checksum(struct mbuf *m, const struct udphdr *uh, int off, int len) |
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{ |
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|
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/* |
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* XXX it's better to record and check if this mbuf is |
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* already checked. |
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*/ |
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if (__predict_false((m->m_flags & M_LOOP) && !udp_do_loopback_cksum)) { |
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goto good; |
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} |
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if (uh->uh_sum == 0) { |
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UDP6_STATINC(UDP6_STAT_NOSUM); |
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goto bad; |
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} |
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switch (m->m_pkthdr.csum_flags & |
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((m->m_pkthdr.rcvif->if_csum_flags_rx & M_CSUM_UDPv6) | |
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M_CSUM_TCP_UDP_BAD | M_CSUM_DATA)) { |
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case M_CSUM_UDPv6|M_CSUM_TCP_UDP_BAD: |
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UDP_CSUM_COUNTER_INCR(&udp6_hwcsum_bad); |
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UDP6_STATINC(UDP6_STAT_BADSUM); |
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goto bad; |
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#if 0 /* notyet */ |
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case M_CSUM_UDPv6|M_CSUM_DATA: |
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#endif |
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case M_CSUM_UDPv6: |
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/* Checksum was okay. */ |
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UDP_CSUM_COUNTER_INCR(&udp6_hwcsum_ok); |
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break; |
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default: |
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/* |
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* Need to compute it ourselves. Maybe skip checksum |
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* on loopback interfaces. |
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*/ |
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UDP_CSUM_COUNTER_INCR(&udp6_swcsum); |
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if (in6_cksum(m, IPPROTO_UDP, off, len) != 0) { |
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UDP6_STATINC(UDP6_STAT_BADSUM); |
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goto bad; |
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} |
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} |
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good: |
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return 0; |
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bad: |
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return -1; |
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} |
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int |
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udp6_input(struct mbuf **mp, int *offp, int proto) |
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{ |
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struct mbuf *m = *mp; |
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int off = *offp; |
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struct sockaddr_in6 src, dst; |
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struct ip6_hdr *ip6; |
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struct udphdr *uh; |
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u_int32_t plen, ulen; |
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ip6 = mtod(m, struct ip6_hdr *); |
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#if defined(NFAITH) && 0 < NFAITH |
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if (faithprefix(&ip6->ip6_dst)) { |
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/* send icmp6 host unreach? */ |
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m_freem(m); |
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return IPPROTO_DONE; |
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} |
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#endif |
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UDP6_STATINC(UDP6_STAT_IPACKETS); |
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/* check for jumbogram is done in ip6_input. we can trust pkthdr.len */ |
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plen = m->m_pkthdr.len - off; |
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IP6_EXTHDR_GET(uh, struct udphdr *, m, off, sizeof(struct udphdr)); |
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if (uh == NULL) { |
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IP6_STATINC(IP6_STAT_TOOSHORT); |
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return IPPROTO_DONE; |
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} |
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KASSERT(UDP_HDR_ALIGNED_P(uh)); |
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ulen = ntohs((u_short)uh->uh_ulen); |
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/* |
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* RFC2675 section 4: jumbograms will have 0 in the UDP header field, |
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* iff payload length > 0xffff. |
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*/ |
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if (ulen == 0 && plen > 0xffff) |
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ulen = plen; |
|
|
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if (plen != ulen) { |
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UDP6_STATINC(UDP6_STAT_BADLEN); |
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goto bad; |
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} |
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|
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/* destination port of 0 is illegal, based on RFC768. */ |
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if (uh->uh_dport == 0) |
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goto bad; |
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|
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/* Be proactive about malicious use of IPv4 mapped address */ |
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if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) || |
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IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
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/* XXX stat */ |
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goto bad; |
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} |
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/* |
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* Checksum extended UDP header and data. Maybe skip checksum |
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* on loopback interfaces. |
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*/ |
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if (udp6_input_checksum(m, uh, off, ulen)) |
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goto bad; |
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/* |
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* Construct source and dst sockaddrs. |
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*/ |
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memset(&src, 0, sizeof(src)); |
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src.sin6_family = AF_INET6; |
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src.sin6_len = sizeof(struct sockaddr_in6); |
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src.sin6_addr = ip6->ip6_src; |
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src.sin6_port = uh->uh_sport; |
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memset(&dst, 0, sizeof(dst)); |
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dst.sin6_family = AF_INET6; |
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dst.sin6_len = sizeof(struct sockaddr_in6); |
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dst.sin6_addr = ip6->ip6_dst; |
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dst.sin6_port = uh->uh_dport; |
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if (udp6_realinput(AF_INET6, &src, &dst, m, off) == 0) { |
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if (m->m_flags & M_MCAST) { |
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UDP6_STATINC(UDP6_STAT_NOPORTMCAST); |
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goto bad; |
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} |
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UDP6_STATINC(UDP6_STAT_NOPORT); |
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icmp6_error(m, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT, 0); |
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m = NULL; |
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} |
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bad: |
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if (m) |
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m_freem(m); |
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return IPPROTO_DONE; |
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} |
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#endif |
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#ifdef INET |
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static void |
static void |
udp4_sendup(struct mbuf *m, int off /* offset of data portion */, |
udp4_sendup(struct mbuf *m, int off /* offset of data portion */, |
struct sockaddr *src, struct socket *so) |
struct sockaddr *src, struct socket *so) |
{ |
{ |
struct mbuf *opts = NULL; |
struct mbuf *opts = NULL; |
struct mbuf *n; |
struct mbuf *n; |
struct inpcb *inp = NULL; |
inpcb_t *inp = NULL; |
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if (!so) |
if (!so) |
return; |
return; |
Line 626 udp4_sendup(struct mbuf *m, int off /* o |
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Line 444 udp4_sendup(struct mbuf *m, int off /* o |
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return; |
return; |
} |
} |
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#if defined(FAST_IPSEC) |
#if defined(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)) { |
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
Line 638 udp4_sendup(struct mbuf *m, int off /* o |
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Line 456 udp4_sendup(struct mbuf *m, int off /* o |
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#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
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if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
if (inp && (inp->inp_flags & INP_CONTROLOPTS |
if (inp && ((inpcb_get_flags(inp) & INP_CONTROLOPTS) != 0 |
#ifdef SO_OTIMESTAMP |
#ifdef SO_OTIMESTAMP |
|| so->so_options & SO_OTIMESTAMP |
|| so->so_options & SO_OTIMESTAMP |
#endif |
#endif |
Line 659 udp4_sendup(struct mbuf *m, int off /* o |
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Line 477 udp4_sendup(struct mbuf *m, int off /* o |
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sorwakeup(so); |
sorwakeup(so); |
} |
} |
} |
} |
#endif |
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#ifdef INET6 |
struct udp_pcb_ctx { |
static void |
struct mbuf * mbuf; |
udp6_sendup(struct mbuf *m, int off /* offset of data portion */, |
struct sockaddr_in * src; |
struct sockaddr *src, struct socket *so) |
struct sockaddr_in * dst; |
{ |
int off; |
struct mbuf *opts = NULL; |
int rcvcnt; |
struct mbuf *n; |
}; |
struct in6pcb *in6p = NULL; |
|
|
|
if (!so) |
static int |
return; |
udp4_pcb_process(inpcb_t *inp, void *arg) |
if (so->so_proto->pr_domain->dom_family != AF_INET6) |
{ |
return; |
struct udp_pcb_ctx *uctx = arg; |
in6p = sotoin6pcb(so); |
struct in_addr dst4 = uctx->dst->sin_addr; |
|
in_port_t dport = uctx->dst->sin_port; |
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struct in_addr laddr, faddr; |
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in_port_t lport, fport; |
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struct socket *so; |
|
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#if defined(FAST_IPSEC) |
inpcb_get_ports(inp, &lport, &fport); |
/* check AH/ESP integrity. */ |
if (lport != dport) { |
if (so != NULL && ipsec6_in_reject_so(m, so)) { |
return 0; |
IPSEC6_STATINC(IPSEC_STAT_IN_POLVIO); |
|
if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) |
|
icmp6_error(n, ICMP6_DST_UNREACH, |
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ICMP6_DST_UNREACH_ADMIN, 0); |
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return; |
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} |
} |
#endif /*IPSEC*/ |
inpcb_get_addrs(inp, &laddr, &faddr); |
|
if (!in_nullhost(laddr) && !in_hosteq(laddr, dst4)) { |
|
return 0; |
|
} |
|
if (!in_nullhost(faddr)) { |
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struct in_addr src4 = uctx->src->sin_addr; |
|
in_port_t sport = uctx->src->sin_port; |
|
|
if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
if (!in_hosteq(faddr, src4) || fport != sport) { |
if (in6p && (in6p->in6p_flags & IN6P_CONTROLOPTS |
return 0; |
#ifdef SO_OTIMESTAMP |
|
|| in6p->in6p_socket->so_options & SO_OTIMESTAMP |
|
#endif |
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|| in6p->in6p_socket->so_options & SO_TIMESTAMP)) { |
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struct ip6_hdr *ip6 = mtod(n, struct ip6_hdr *); |
|
ip6_savecontrol(in6p, &opts, ip6, n); |
|
} |
} |
|
} |
|
|
m_adj(n, off); |
so = inpcb_get_socket(inp); |
if (sbappendaddr(&so->so_rcv, src, n, opts) == 0) { |
udp4_sendup(uctx->mbuf, uctx->off, (struct sockaddr *)uctx->src, so); |
m_freem(n); |
uctx->rcvcnt++; |
if (opts) |
|
m_freem(opts); |
/* |
so->so_rcv.sb_overflowed++; |
* Do not look for additional matches if this one does not have |
UDP6_STATINC(UDP6_STAT_FULLSOCK); |
* either the SO_REUSEPORT or SO_REUSEADDR socket options set. |
} else |
* This heuristic avoids searching through all PCBs in the common |
sorwakeup(so); |
* case of a non-shared port. It assumes that an application will |
|
* never clear these options after setting them. |
|
*/ |
|
if ((so->so_options & (SO_REUSEPORT|SO_REUSEADDR)) == 0) { |
|
return EJUSTRETURN; |
} |
} |
|
return 0; |
} |
} |
#endif |
|
|
|
#ifdef INET |
|
static int |
static int |
udp4_realinput(struct sockaddr_in *src, struct sockaddr_in *dst, |
udp4_realinput(struct sockaddr_in *src, struct sockaddr_in *dst, |
struct mbuf **mp, int off /* offset of udphdr */) |
struct mbuf **mp, int off /* offset of udphdr */) |
{ |
{ |
u_int16_t *sport, *dport; |
in_port_t *sport, *dport; |
int rcvcnt; |
|
struct in_addr *src4, *dst4; |
struct in_addr *src4, *dst4; |
struct inpcb_hdr *inph; |
inpcb_t *inp; |
struct inpcb *inp; |
|
struct mbuf *m = *mp; |
struct mbuf *m = *mp; |
|
int rcvcnt; |
|
|
rcvcnt = 0; |
rcvcnt = 0; |
off += sizeof(struct udphdr); /* now, offset of payload */ |
off += sizeof(struct udphdr); /* now, offset of payload */ |
Line 735 udp4_realinput(struct sockaddr_in *src, |
|
Line 553 udp4_realinput(struct sockaddr_in *src, |
|
|
|
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 udp_pcb_ctx uctx = { |
|
.mbuf = m, .src = src, .dst = dst, |
|
.off = off, .rcvcnt = 0 |
|
}; |
|
int error; |
|
|
/* |
/* |
* 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 |
* those of the incoming datagram. This allows more than |
* those of the incoming datagram. This allows more than |
* one process to receive multi/broadcasts on the same port. |
* 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?) |
|
*/ |
*/ |
|
error = inpcb_foreach(udbtable, AF_INET, |
/* |
udp4_pcb_process, &uctx); |
* KAME note: traditionally we dropped udpiphdr from mbuf here. |
KASSERT(error == 0 || error == EJUSTRETURN); |
* we need udpiphdr for IPsec processing so we do that later. |
rcvcnt = uctx.rcvcnt; |
*/ |
|
/* |
|
* Locate pcb(s) for datagram. |
|
*/ |
|
CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) { |
|
inp = (struct inpcb *)inph; |
|
if (inp->inp_af != AF_INET) |
|
continue; |
|
|
|
if (inp->inp_lport != *dport) |
|
continue; |
|
if (!in_nullhost(inp->inp_laddr)) { |
|
if (!in_hosteq(inp->inp_laddr, *dst4)) |
|
continue; |
|
} |
|
if (!in_nullhost(inp->inp_faddr)) { |
|
if (!in_hosteq(inp->inp_faddr, *src4) || |
|
inp->inp_fport != *sport) |
|
continue; |
|
} |
|
|
|
udp4_sendup(m, off, (struct sockaddr *)src, |
|
inp->inp_socket); |
|
rcvcnt++; |
|
|
|
/* |
|
* 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 ((inp->inp_socket->so_options & |
|
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
|
break; |
|
} |
|
} else { |
} else { |
/* |
/* |
* Locate pcb for datagram. |
* Locate PCB for datagram. |
*/ |
*/ |
inp = in_pcblookup_connect(&udbtable, *src4, *sport, *dst4, |
struct socket *so; |
|
|
|
inp = inpcb_lookup_connect(udbtable, *src4, *sport, *dst4, |
*dport, 0); |
*dport, 0); |
if (inp == 0) { |
if (inp == NULL) { |
UDP_STATINC(UDP_STAT_PCBHASHMISS); |
UDP_STATINC(UDP_STAT_PCBHASHMISS); |
inp = in_pcblookup_bind(&udbtable, *dst4, *dport); |
inp = inpcb_lookup_bind(udbtable, *dst4, *dport); |
if (inp == 0) |
if (inp == NULL) |
return rcvcnt; |
return rcvcnt; |
} |
} |
|
so = inpcb_get_socket(inp); |
|
|
#ifdef IPSEC_NAT_T |
#ifdef IPSEC |
/* Handle ESP over UDP */ |
/* Handle ESP over UDP */ |
if (inp->inp_flags & INP_ESPINUDP_ALL) { |
if (inpcb_get_flags(inp) & INP_ESPINUDP_ALL) { |
struct sockaddr *sa = (struct sockaddr *)src; |
struct sockaddr *sa = (struct sockaddr *)src; |
|
|
switch(udp4_espinudp(mp, off, sa, inp->inp_socket)) { |
switch (udp4_espinudp(mp, off, sa, so)) { |
case -1: /* Error, m was freeed */ |
case -1: /* Error, m was freeed */ |
rcvcnt = -1; |
rcvcnt = -1; |
goto bad; |
goto bad; |
Line 835 udp4_realinput(struct sockaddr_in *src, |
|
Line 616 udp4_realinput(struct sockaddr_in *src, |
|
/* |
/* |
* Check the minimum TTL for socket. |
* Check the minimum TTL for socket. |
*/ |
*/ |
if (mtod(m, struct ip *)->ip_ttl < inp->inp_ip_minttl) |
if (mtod(m, struct ip *)->ip_ttl < inpcb_get_minttl(inp)) { |
goto bad; |
goto bad; |
|
|
udp4_sendup(m, off, (struct sockaddr *)src, inp->inp_socket); |
|
rcvcnt++; |
|
} |
|
|
|
bad: |
|
return rcvcnt; |
|
} |
|
#endif |
|
|
|
#ifdef INET6 |
|
static int |
|
udp6_realinput(int af, struct sockaddr_in6 *src, struct sockaddr_in6 *dst, |
|
struct mbuf *m, int off) |
|
{ |
|
u_int16_t sport, dport; |
|
int rcvcnt; |
|
struct in6_addr src6, *dst6; |
|
const struct in_addr *dst4; |
|
struct inpcb_hdr *inph; |
|
struct in6pcb *in6p; |
|
|
|
rcvcnt = 0; |
|
off += sizeof(struct udphdr); /* now, offset of payload */ |
|
|
|
if (af != AF_INET && af != AF_INET6) |
|
goto bad; |
|
if (src->sin6_family != AF_INET6 || dst->sin6_family != AF_INET6) |
|
goto bad; |
|
|
|
src6 = src->sin6_addr; |
|
if (sa6_recoverscope(src) != 0) { |
|
/* XXX: should be impossible. */ |
|
goto bad; |
|
} |
|
sport = src->sin6_port; |
|
|
|
dport = dst->sin6_port; |
|
dst4 = (struct in_addr *)&dst->sin6_addr.s6_addr[12]; |
|
dst6 = &dst->sin6_addr; |
|
|
|
if (IN6_IS_ADDR_MULTICAST(dst6) || |
|
(af == AF_INET && IN_MULTICAST(dst4->s_addr))) { |
|
/* |
|
* 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?) |
|
*/ |
|
|
|
/* |
|
* KAME note: traditionally we dropped udpiphdr from mbuf here. |
|
* we need udpiphdr for IPsec processing so we do that later. |
|
*/ |
|
/* |
|
* Locate pcb(s) for datagram. |
|
*/ |
|
CIRCLEQ_FOREACH(inph, &udbtable.inpt_queue, inph_queue) { |
|
in6p = (struct in6pcb *)inph; |
|
if (in6p->in6p_af != AF_INET6) |
|
continue; |
|
|
|
if (in6p->in6p_lport != dport) |
|
continue; |
|
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) { |
|
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, |
|
dst6)) |
|
continue; |
|
} else { |
|
if (IN6_IS_ADDR_V4MAPPED(dst6) && |
|
(in6p->in6p_flags & IN6P_IPV6_V6ONLY)) |
|
continue; |
|
} |
|
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) { |
|
if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, |
|
&src6) || in6p->in6p_fport != sport) |
|
continue; |
|
} else { |
|
if (IN6_IS_ADDR_V4MAPPED(&src6) && |
|
(in6p->in6p_flags & IN6P_IPV6_V6ONLY)) |
|
continue; |
|
} |
|
|
|
udp6_sendup(m, off, (struct sockaddr *)src, |
|
in6p->in6p_socket); |
|
rcvcnt++; |
|
|
|
/* |
|
* 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 ((in6p->in6p_socket->so_options & |
|
(SO_REUSEPORT|SO_REUSEADDR)) == 0) |
|
break; |
|
} |
|
} else { |
|
/* |
|
* Locate pcb for datagram. |
|
*/ |
|
in6p = in6_pcblookup_connect(&udbtable, &src6, sport, dst6, |
|
dport, 0, 0); |
|
if (in6p == 0) { |
|
UDP_STATINC(UDP_STAT_PCBHASHMISS); |
|
in6p = in6_pcblookup_bind(&udbtable, dst6, dport, 0); |
|
if (in6p == 0) |
|
return rcvcnt; |
|
} |
} |
|
udp4_sendup(m, off, (struct sockaddr *)src, so); |
udp6_sendup(m, off, (struct sockaddr *)src, in6p->in6p_socket); |
|
rcvcnt++; |
rcvcnt++; |
} |
} |
|
|
|
|
|
|
#ifdef INET |
#ifdef INET |
/* |
/* |
* Notify a udp user of an asynchronous error; |
* Notify a UDP user of an asynchronous error; |
* 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(struct inpcb *inp, int errno) |
udp_notify(inpcb_t *inp, int errno) |
{ |
{ |
inp->inp_socket->so_error = errno; |
struct socket *so = inpcb_get_socket(inp); |
sorwakeup(inp->inp_socket); |
|
sowwakeup(inp->inp_socket); |
so->so_error = errno; |
|
sorwakeup(so); |
|
sowwakeup(so); |
} |
} |
|
|
void * |
void * |
Line 985 udp_ctlinput(int cmd, const struct socka |
|
Line 648 udp_ctlinput(int cmd, const struct socka |
|
{ |
{ |
struct ip *ip = v; |
struct ip *ip = v; |
struct udphdr *uh; |
struct udphdr *uh; |
void (*notify)(struct inpcb *, int) = udp_notify; |
|
int errno; |
int errno; |
|
bool rdr; |
|
|
if (sa->sa_family != AF_INET |
if (sa->sa_family != AF_INET || |
|| sa->sa_len != sizeof(struct sockaddr_in)) |
sa->sa_len != sizeof(struct sockaddr_in)) |
return NULL; |
return NULL; |
if ((unsigned)cmd >= PRC_NCMDS) |
if ((unsigned)cmd >= PRC_NCMDS) |
return NULL; |
return NULL; |
errno = inetctlerrmap[cmd]; |
errno = inetctlerrmap[cmd]; |
if (PRC_IS_REDIRECT(cmd)) |
|
notify = in_rtchange, ip = 0; |
rdr = PRC_IS_REDIRECT(cmd); |
else if (cmd == PRC_HOSTDEAD) |
if (rdr || cmd == PRC_HOSTDEAD || ip == NULL) { |
ip = 0; |
inpcb_notifyall(udbtable, satocsin(sa)->sin_addr, |
else if (errno == 0) |
errno, rdr ? inpcb_rtchange : udp_notify); |
return NULL; |
return NULL; |
if (ip) { |
} else if (errno == 0) { |
uh = (struct udphdr *)((char *)ip + (ip->ip_hl << 2)); |
return NULL; |
in_pcbnotify(&udbtable, satocsin(sa)->sin_addr, uh->uh_dport, |
} |
ip->ip_src, uh->uh_sport, errno, notify); |
|
|
|
/* XXX mapped address case */ |
/* Note: mapped address case */ |
} else |
uh = (struct udphdr *)((char *)ip + (ip->ip_hl << 2)); |
in_pcbnotifyall(&udbtable, satocsin(sa)->sin_addr, errno, |
inpcb_notify(udbtable, satocsin(sa)->sin_addr, uh->uh_dport, |
notify); |
ip->ip_src, uh->uh_sport, errno, udp_notify); |
return NULL; |
return NULL; |
} |
} |
|
|
int |
int |
udp_ctloutput(int op, struct socket *so, struct sockopt *sopt) |
udp_ctloutput(int op, struct socket *so, struct sockopt *sopt) |
{ |
{ |
int s; |
int s, family, optval, inpflags, error = 0; |
int error = 0; |
inpcb_t *inp; |
struct inpcb *inp; |
|
int family; |
|
int optval; |
|
|
|
family = so->so_proto->pr_domain->dom_family; |
family = so->so_proto->pr_domain->dom_family; |
|
|
Line 1046 udp_ctloutput(int op, struct socket *so, |
|
Line 705 udp_ctloutput(int op, struct socket *so, |
|
goto end; |
goto end; |
} |
} |
|
|
|
|
switch (op) { |
switch (op) { |
case PRCO_SETOPT: |
case PRCO_SETOPT: |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
Line 1057 udp_ctloutput(int op, struct socket *so, |
|
Line 715 udp_ctloutput(int op, struct socket *so, |
|
if (error) |
if (error) |
break; |
break; |
|
|
|
inpflags = inpcb_get_flags(inp); |
switch(optval) { |
switch(optval) { |
#ifdef IPSEC_NAT_T |
|
case 0: |
case 0: |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inpflags &= ~INP_ESPINUDP_ALL; |
break; |
break; |
|
|
case UDP_ENCAP_ESPINUDP: |
case UDP_ENCAP_ESPINUDP: |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inpflags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags |= INP_ESPINUDP; |
inpflags |= INP_ESPINUDP; |
break; |
break; |
|
|
case UDP_ENCAP_ESPINUDP_NON_IKE: |
case UDP_ENCAP_ESPINUDP_NON_IKE: |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inpflags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags |= INP_ESPINUDP_NON_IKE; |
inpflags |= INP_ESPINUDP_NON_IKE; |
break; |
break; |
#endif |
|
default: |
default: |
error = EINVAL; |
error = EINVAL; |
break; |
break; |
} |
} |
|
inpcb_set_flags(inp, inpflags); |
break; |
break; |
|
|
default: |
default: |
error = ENOPROTOOPT; |
error = ENOPROTOOPT; |
break; |
break; |
|
|
int |
int |
udp_output(struct mbuf *m, ...) |
udp_output(struct mbuf *m, ...) |
{ |
{ |
struct inpcb *inp; |
inpcb_t *inp; |
|
struct socket *so; |
struct udpiphdr *ui; |
struct udpiphdr *ui; |
struct route *ro; |
struct route *ro; |
int len = m->m_pkthdr.len; |
int len = m->m_pkthdr.len; |
Line 1108 udp_output(struct mbuf *m, ...) |
|
Line 767 udp_output(struct mbuf *m, ...) |
|
|
|
MCLAIM(m, &udp_tx_mowner); |
MCLAIM(m, &udp_tx_mowner); |
va_start(ap, m); |
va_start(ap, m); |
inp = va_arg(ap, struct inpcb *); |
inp = va_arg(ap, inpcb_t *); |
va_end(ap); |
va_end(ap); |
|
|
|
so = inpcb_get_socket(inp); |
|
KASSERT(solocked(so)); |
|
|
/* |
/* |
* Calculate data length and get a mbuf |
* Calculate data length and get a mbuf |
* for UDP and IP headers. |
* for UDP and IP headers. |
Line 1136 udp_output(struct mbuf *m, ...) |
|
Line 798 udp_output(struct mbuf *m, ...) |
|
*/ |
*/ |
ui = mtod(m, struct udpiphdr *); |
ui = mtod(m, struct udpiphdr *); |
ui->ui_pr = IPPROTO_UDP; |
ui->ui_pr = IPPROTO_UDP; |
ui->ui_src = inp->inp_laddr; |
|
ui->ui_dst = inp->inp_faddr; |
inpcb_get_addrs(inp, &ui->ui_src, &ui->ui_dst); |
ui->ui_sport = inp->inp_lport; |
inpcb_get_ports(inp, &ui->ui_sport, &ui->ui_dport); |
ui->ui_dport = inp->inp_fport; |
|
ui->ui_ulen = htons((u_int16_t)len + sizeof(struct udphdr)); |
ui->ui_ulen = htons((u_int16_t)len + sizeof(struct udphdr)); |
|
|
ro = &inp->inp_route; |
ro = inpcb_get_route(inp); |
|
|
/* |
/* |
* Set up checksum and output datagram. |
* Set up checksum and output datagram. |
Line 1159 udp_output(struct mbuf *m, ...) |
|
Line 820 udp_output(struct mbuf *m, ...) |
|
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 = htons(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_tos = inp->inp_ip.ip_tos; /* XXX */ |
struct ip *inp_ip = in_getiphdr(inp); |
|
((struct ip *)ui)->ip_ttl = inp_ip->ip_ttl; /* XXX */ |
|
((struct ip *)ui)->ip_tos = inp_ip->ip_tos; /* XXX */ |
UDP_STATINC(UDP_STAT_OPACKETS); |
UDP_STATINC(UDP_STAT_OPACKETS); |
|
|
return (ip_output(m, inp->inp_options, ro, |
return (ip_output(m, inpcb_get_options(inp), ro, |
inp->inp_socket->so_options & (SO_DONTROUTE | SO_BROADCAST), |
so->so_options & (SO_DONTROUTE | SO_BROADCAST), |
inp->inp_moptions, inp->inp_socket)); |
inpcb_get_moptions(inp), so)); |
|
|
release: |
release: |
m_freem(m); |
m_freem(m); |
return (error); |
return error; |
} |
} |
|
|
int udp_sendspace = 9216; /* really max datagram size */ |
|
int udp_recvspace = 40 * (1024 + sizeof(struct sockaddr_in)); |
|
/* 40 1K datagrams */ |
|
|
|
/*ARGSUSED*/ |
|
int |
int |
udp_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, |
udp_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, |
struct mbuf *control, struct lwp *l) |
struct mbuf *control, struct lwp *l) |
{ |
{ |
struct inpcb *inp; |
inpcb_t *inp; |
int s; |
struct ip *inp_ip; |
int error = 0; |
int s, error = 0; |
|
|
if (req == PRU_CONTROL) |
|
return (in_control(so, (long)m, (void *)nam, |
|
(struct ifnet *)control, l)); |
|
|
|
|
if (req == PRU_CONTROL) { |
|
return in_control(so, (long)m, nam, (ifnet_t *)control, l); |
|
} |
s = splsoftnet(); |
s = splsoftnet(); |
|
|
if (req == PRU_PURGEIF) { |
if (req == PRU_PURGEIF) { |
mutex_enter(softnet_lock); |
mutex_enter(softnet_lock); |
in_pcbpurgeif0(&udbtable, (struct ifnet *)control); |
inpcb_purgeif0(udbtable, (ifnet_t *)control); |
in_purgeif((struct ifnet *)control); |
in_purgeif((ifnet_t *)control); |
in_pcbpurgeif(&udbtable, (struct ifnet *)control); |
inpcb_purgeif(udbtable, (ifnet_t *)control); |
mutex_exit(softnet_lock); |
mutex_exit(softnet_lock); |
splx(s); |
splx(s); |
return (0); |
return (0); |
} |
} |
|
|
|
KASSERT(req == PRU_ATTACH || solocked(so)); |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
#ifdef DIAGNOSTIC |
|
if (req != PRU_SEND && req != PRU_SENDOOB && control) |
KASSERT(!control || (req == PRU_SEND || req == PRU_SENDOOB)); |
panic("udp_usrreq: unexpected control mbuf"); |
if (inp == NULL && req != PRU_ATTACH) { |
#endif |
|
if (req == PRU_ATTACH) { |
|
sosetlock(so); |
|
} else if (inp == 0) { |
|
error = EINVAL; |
error = EINVAL; |
goto release; |
goto release; |
} |
} |
Line 1219 udp_usrreq(struct socket *so, int req, s |
|
Line 873 udp_usrreq(struct socket *so, int req, s |
|
* the udp pcb queue and/or pcb addresses. |
* the udp pcb queue and/or pcb addresses. |
*/ |
*/ |
switch (req) { |
switch (req) { |
|
|
case PRU_ATTACH: |
case PRU_ATTACH: |
if (inp != 0) { |
sosetlock(so); |
|
if (inp) { |
error = EISCONN; |
error = EISCONN; |
break; |
break; |
} |
} |
Line 1235 udp_usrreq(struct socket *so, int req, s |
|
Line 889 udp_usrreq(struct socket *so, int req, s |
|
if (error) |
if (error) |
break; |
break; |
} |
} |
error = in_pcballoc(so, &udbtable); |
error = inpcb_create(so, udbtable); |
if (error) |
if (error) |
break; |
break; |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
inp->inp_ip.ip_ttl = ip_defttl; |
inp_ip = in_getiphdr(inp); |
|
inp_ip->ip_ttl = ip_defttl; |
break; |
break; |
|
|
case PRU_DETACH: |
case PRU_DETACH: |
in_pcbdetach(inp); |
inpcb_destroy(inp); |
break; |
break; |
|
|
case PRU_BIND: |
case PRU_BIND: |
error = in_pcbbind(inp, nam, l); |
error = inpcb_bind(inp, nam, l); |
break; |
break; |
|
|
case PRU_LISTEN: |
case PRU_LISTEN: |
Line 1255 udp_usrreq(struct socket *so, int req, s |
|
Line 910 udp_usrreq(struct socket *so, int req, s |
|
break; |
break; |
|
|
case PRU_CONNECT: |
case PRU_CONNECT: |
error = in_pcbconnect(inp, nam, l); |
error = inpcb_connect(inp, nam, l); |
if (error) |
if (error) |
break; |
break; |
soisconnected(so); |
soisconnected(so); |
Line 1267 udp_usrreq(struct socket *so, int req, s |
|
Line 922 udp_usrreq(struct socket *so, int req, s |
|
|
|
case PRU_DISCONNECT: |
case PRU_DISCONNECT: |
/*soisdisconnected(so);*/ |
/*soisdisconnected(so);*/ |
so->so_state &= ~SS_ISCONNECTED; /* XXX */ |
so->so_state &= ~SS_ISCONNECTED; /* XXX */ |
in_pcbdisconnect(inp); |
inpcb_disconnect(inp); |
inp->inp_laddr = zeroin_addr; /* XXX */ |
inpcb_set_addrs(inp, &zeroin_addr, NULL); /* XXX */ |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
inpcb_set_state(inp, INP_BOUND); /* XXX */ |
break; |
break; |
|
|
case PRU_SHUTDOWN: |
case PRU_SHUTDOWN: |
Line 1289 udp_usrreq(struct socket *so, int req, s |
|
Line 944 udp_usrreq(struct socket *so, int req, s |
|
break; |
break; |
} |
} |
{ |
{ |
struct in_addr laddr; /* XXX */ |
/* |
|
* Note: sendto case - temporarily connect the socket |
|
* to the destination, send and then disconnect. |
|
* XXX: save the local address, restore after. |
|
*/ |
|
struct in_addr laddr; |
|
|
memset(&laddr, 0, sizeof laddr); |
memset(&laddr, 0, sizeof laddr); |
if (nam) { |
if (nam) { |
laddr = inp->inp_laddr; /* XXX */ |
inpcb_get_addrs(inp, &laddr, NULL); |
if ((so->so_state & SS_ISCONNECTED) != 0) { |
if ((so->so_state & SS_ISCONNECTED) != 0) { |
error = EISCONN; |
error = EISCONN; |
goto die; |
goto die; |
} |
} |
error = in_pcbconnect(inp, nam, l); |
error = inpcb_connect(inp, nam, l); |
if (error) |
if (error) |
goto die; |
goto die; |
} else { |
} else { |
Line 1310 udp_usrreq(struct socket *so, int req, s |
|
Line 970 udp_usrreq(struct socket *so, int req, s |
|
error = udp_output(m, inp); |
error = udp_output(m, inp); |
m = NULL; |
m = NULL; |
if (nam) { |
if (nam) { |
in_pcbdisconnect(inp); |
inpcb_disconnect(inp); |
inp->inp_laddr = laddr; /* XXX */ |
inpcb_set_addrs(inp, &laddr, NULL); |
in_pcbstate(inp, INP_BOUND); /* XXX */ |
inpcb_set_state(inp, INP_BOUND); |
} |
} |
die: |
die: |
if (m) |
if (m) |
m_freem(m); |
m_freem(m); |
} |
} |
Line 1338 udp_usrreq(struct socket *so, int req, s |
|
Line 998 udp_usrreq(struct socket *so, int req, s |
|
break; |
break; |
|
|
case PRU_SOCKADDR: |
case PRU_SOCKADDR: |
in_setsockaddr(inp, nam); |
inpcb_fetch_sockaddr(inp, nam); |
break; |
break; |
|
|
case PRU_PEERADDR: |
case PRU_PEERADDR: |
in_setpeeraddr(inp, nam); |
inpcb_fetch_peeraddr(inp, nam); |
break; |
break; |
|
|
default: |
default: |
Line 1416 sysctl_net_inet_udp_setup(struct sysctll |
|
Line 1076 sysctl_net_inet_udp_setup(struct sysctll |
|
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_STRUCT, "pcblist", |
CTLTYPE_STRUCT, "pcblist", |
SYSCTL_DESCR("UDP protocol control block list"), |
SYSCTL_DESCR("UDP protocol control block list"), |
sysctl_inpcblist, 0, &udbtable, 0, |
sysctl_inpcblist, 0, udbtable, 0, |
CTL_NET, PF_INET, IPPROTO_UDP, CTL_CREATE, |
CTL_NET, PF_INET, IPPROTO_UDP, CTL_CREATE, |
CTL_EOL); |
CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
Line 1437 udp_statinc(u_int stat) |
|
Line 1097 udp_statinc(u_int stat) |
|
UDP_STATINC(stat); |
UDP_STATINC(stat); |
} |
} |
|
|
#if (defined INET && defined IPSEC_NAT_T) |
#if defined(INET) && defined(IPSEC) |
/* |
/* |
* Returns: |
* Returns: |
* 1 if the packet was processed |
* 1 if the packet was processed |
Line 1450 udp4_espinudp(struct mbuf **mp, int off, |
|
Line 1110 udp4_espinudp(struct mbuf **mp, int off, |
|
{ |
{ |
size_t len; |
size_t len; |
void *data; |
void *data; |
struct inpcb *inp; |
inpcb_t *inp; |
size_t skip = 0; |
size_t skip = 0; |
size_t minlen; |
size_t minlen; |
size_t iphdrlen; |
size_t iphdrlen; |
struct ip *ip; |
struct ip *ip; |
struct mbuf *n; |
|
struct m_tag *tag; |
struct m_tag *tag; |
struct udphdr *udphdr; |
struct udphdr *udphdr; |
u_int16_t sport, dport; |
in_port_t sport, dport; |
struct mbuf *m = *mp; |
struct mbuf *m = *mp; |
|
int inpflags; |
|
|
/* |
/* |
* Collapse the mbuf chain if the first mbuf is too short |
* Collapse the mbuf chain if the first mbuf is too short |
Line 1483 udp4_espinudp(struct mbuf **mp, int off, |
|
Line 1143 udp4_espinudp(struct mbuf **mp, int off, |
|
|
|
/* Ignore keepalive packets */ |
/* Ignore keepalive packets */ |
if ((len == 1) && (*(unsigned char *)data == 0xff)) { |
if ((len == 1) && (*(unsigned char *)data == 0xff)) { |
|
m_free(m); |
|
*mp = NULL; /* avoid any further processiong by caller ... */ |
return 1; |
return 1; |
} |
} |
|
inpflags = inpcb_get_flags(inp); |
|
|
/* |
/* |
* Check that the payload is long enough to hold |
* Check that the payload is long enough to hold |
* an ESP header and compute the length of encapsulation |
* an ESP header and compute the length of encapsulation |
* header to remove |
* header to remove |
*/ |
*/ |
if (inp->inp_flags & INP_ESPINUDP) { |
if (inpflags & INP_ESPINUDP) { |
u_int32_t *st = (u_int32_t *)data; |
u_int32_t *st = (u_int32_t *)data; |
|
|
if ((len <= sizeof(struct esp)) || (*st == 0)) |
if ((len <= sizeof(struct esp)) || (*st == 0)) |
Line 1500 udp4_espinudp(struct mbuf **mp, int off, |
|
Line 1163 udp4_espinudp(struct mbuf **mp, int off, |
|
skip = sizeof(struct udphdr); |
skip = sizeof(struct udphdr); |
} |
} |
|
|
if (inp->inp_flags & INP_ESPINUDP_NON_IKE) { |
if (inpflags & INP_ESPINUDP_NON_IKE) { |
u_int32_t *st = (u_int32_t *)data; |
u_int32_t *st = (u_int32_t *)data; |
|
|
if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
Line 1542 udp4_espinudp(struct mbuf **mp, int off, |
|
Line 1205 udp4_espinudp(struct mbuf **mp, int off, |
|
ip->ip_p = IPPROTO_ESP; |
ip->ip_p = IPPROTO_ESP; |
|
|
/* |
/* |
* Copy the mbuf to avoid multiple free, as both |
* We have modified the packet - it is now ESP, so we should not |
* esp4_input (which we call) and udp_input (which |
* return to UDP processing ... |
* called us) free the mbuf. |
* |
*/ |
|
if ((n = m_dup(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) { |
|
printf("udp4_espinudp: m_dup failed\n"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* Add a PACKET_TAG_IPSEC_NAT_T_PORT tag to remember |
* Add a PACKET_TAG_IPSEC_NAT_T_PORT tag to remember |
* the source UDP port. This is required if we want |
* the source UDP port. This is required if we want |
* to select the right SPD for multiple hosts behind |
* to select the right SPD for multiple hosts behind |
Line 1560 udp4_espinudp(struct mbuf **mp, int off, |
|
Line 1216 udp4_espinudp(struct mbuf **mp, int off, |
|
if ((tag = m_tag_get(PACKET_TAG_IPSEC_NAT_T_PORTS, |
if ((tag = m_tag_get(PACKET_TAG_IPSEC_NAT_T_PORTS, |
sizeof(sport) + sizeof(dport), M_DONTWAIT)) == NULL) { |
sizeof(sport) + sizeof(dport), M_DONTWAIT)) == NULL) { |
printf("udp4_espinudp: m_tag_get failed\n"); |
printf("udp4_espinudp: m_tag_get failed\n"); |
m_freem(n); |
m_freem(m); |
return 0; |
return -1; |
} |
} |
((u_int16_t *)(tag + 1))[0] = sport; |
((u_int16_t *)(tag + 1))[0] = sport; |
((u_int16_t *)(tag + 1))[1] = dport; |
((u_int16_t *)(tag + 1))[1] = dport; |
m_tag_prepend(n, tag); |
m_tag_prepend(m, tag); |
|
|
#ifdef FAST_IPSEC |
#ifdef IPSEC |
ipsec4_common_input(n, iphdrlen, IPPROTO_ESP); |
ipsec4_common_input(m, iphdrlen, IPPROTO_ESP); |
#else |
#else |
esp4_input(n, iphdrlen); |
esp4_input(m, iphdrlen); |
#endif |
#endif |
|
|
/* We handled it, it shouldn't be handled by UDP */ |
/* We handled it, it shouldn't be handled by UDP */ |
|
*mp = NULL; /* avoid free by caller ... */ |
return 1; |
return 1; |
} |
} |
#endif |
#endif |