version 1.183.2.1, 2012/04/17 00:08:41 |
version 1.188, 2013/06/04 22:47:37 |
Line 96 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 96 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet/udp.h> |
#include <netinet/udp.h> |
#include <netinet/udp_var.h> |
#include <netinet/udp_var.h> |
#include <netinet/udp_private.h> |
#include <netinet/udp_private.h> |
#include <netinet/rfc6056.h> |
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#ifdef INET6 |
#ifdef INET6 |
#include <netinet/ip6.h> |
#include <netinet/ip6.h> |
Line 149 struct inpcbtable udbtable; |
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Line 148 struct inpcbtable udbtable; |
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percpu_t *udpstat_percpu; |
percpu_t *udpstat_percpu; |
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#ifdef INET |
#ifdef INET |
#ifdef IPSEC_NAT_T |
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static int udp4_espinudp (struct mbuf **, int, struct sockaddr *, |
static int udp4_espinudp (struct mbuf **, int, struct sockaddr *, |
struct socket *); |
struct socket *); |
#endif |
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static void udp4_sendup (struct mbuf *, int, struct sockaddr *, |
static void udp4_sendup (struct mbuf *, int, struct sockaddr *, |
struct socket *); |
struct socket *); |
static int udp4_realinput (struct sockaddr_in *, struct sockaddr_in *, |
static int udp4_realinput (struct sockaddr_in *, struct sockaddr_in *, |
Line 405 udp_input(struct mbuf *m, ...) |
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Line 402 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; |
Line 805 udp4_realinput(struct sockaddr_in *src, |
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Line 810 udp4_realinput(struct sockaddr_in *src, |
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return rcvcnt; |
return rcvcnt; |
} |
} |
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#ifdef IPSEC_NAT_T |
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/* Handle ESP over UDP */ |
/* Handle ESP over UDP */ |
if (inp->inp_flags & INP_ESPINUDP_ALL) { |
if (inp->inp_flags & INP_ESPINUDP_ALL) { |
struct sockaddr *sa = (struct sockaddr *)src; |
struct sockaddr *sa = (struct sockaddr *)src; |
Line 831 udp4_realinput(struct sockaddr_in *src, |
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Line 835 udp4_realinput(struct sockaddr_in *src, |
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break; |
break; |
} |
} |
} |
} |
#endif |
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/* |
/* |
* Check the minimum TTL for socket. |
* Check the minimum TTL for socket. |
Line 1059 udp_ctloutput(int op, struct socket *so, |
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Line 1062 udp_ctloutput(int op, struct socket *so, |
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break; |
break; |
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switch(optval) { |
switch(optval) { |
#ifdef IPSEC_NAT_T |
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case 0: |
case 0: |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
break; |
break; |
Line 1073 udp_ctloutput(int op, struct socket *so, |
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Line 1075 udp_ctloutput(int op, struct socket *so, |
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inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags |= INP_ESPINUDP_NON_IKE; |
inp->inp_flags |= INP_ESPINUDP_NON_IKE; |
break; |
break; |
#endif |
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default: |
default: |
error = EINVAL; |
error = EINVAL; |
break; |
break; |
} |
} |
break; |
break; |
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case UDP_RFC6056ALGO: |
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error = sockopt_getint(sopt, &optval); |
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if (error) |
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break; |
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error = rfc6056_algo_index_select( |
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(struct inpcb_hdr *)inp, optval); |
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break; |
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default: |
default: |
error = ENOPROTOOPT; |
error = ENOPROTOOPT; |
break; |
break; |
Line 1377 sysctl_net_inet_udp_stats(SYSCTLFN_ARGS) |
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Line 1369 sysctl_net_inet_udp_stats(SYSCTLFN_ARGS) |
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static void |
static void |
sysctl_net_inet_udp_setup(struct sysctllog **clog) |
sysctl_net_inet_udp_setup(struct sysctllog **clog) |
{ |
{ |
const struct sysctlnode *rfc6056_node; |
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sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_NODE, "net", NULL, |
CTLTYPE_NODE, "net", NULL, |
Line 1438 sysctl_net_inet_udp_setup(struct sysctll |
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Line 1428 sysctl_net_inet_udp_setup(struct sysctll |
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sysctl_net_inet_udp_stats, 0, NULL, 0, |
sysctl_net_inet_udp_stats, 0, NULL, 0, |
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_STATS, |
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_STATS, |
CTL_EOL); |
CTL_EOL); |
/* RFC6056 subtree */ |
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sysctl_createv(clog, 0, NULL, &rfc6056_node, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_NODE, "rfc6056", |
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SYSCTL_DESCR("RFC 6056"), |
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NULL, 0, NULL, 0, |
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CTL_NET, PF_INET, IPPROTO_UDP, CTL_CREATE, CTL_EOL); |
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sysctl_createv(clog, 0, &rfc6056_node, NULL, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_STRING, "available", |
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SYSCTL_DESCR("RFC 6056 available algorithms"), |
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sysctl_rfc6056_available, 0, NULL, RFC6056_MAXLEN, |
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CTL_CREATE, CTL_EOL); |
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sysctl_createv(clog, 0, &rfc6056_node, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_STRING, "selected", |
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SYSCTL_DESCR("RFC 6056 selected algorithm"), |
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sysctl_rfc6056_selected, 0, NULL, RFC6056_MAXLEN, |
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CTL_CREATE, CTL_EOL); |
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} |
} |
#endif |
#endif |
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Line 1468 udp_statinc(u_int stat) |
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Line 1439 udp_statinc(u_int stat) |
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UDP_STATINC(stat); |
UDP_STATINC(stat); |
} |
} |
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#if (defined INET && defined IPSEC_NAT_T) |
#if defined(INET) |
/* |
/* |
* Returns: |
* Returns: |
* 1 if the packet was processed |
* 1 if the packet was processed |
Line 1486 udp4_espinudp(struct mbuf **mp, int off, |
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Line 1457 udp4_espinudp(struct mbuf **mp, int off, |
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size_t minlen; |
size_t minlen; |
size_t iphdrlen; |
size_t iphdrlen; |
struct ip *ip; |
struct ip *ip; |
struct mbuf *n; |
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struct m_tag *tag; |
struct m_tag *tag; |
struct udphdr *udphdr; |
struct udphdr *udphdr; |
u_int16_t sport, dport; |
u_int16_t sport, dport; |
Line 1514 udp4_espinudp(struct mbuf **mp, int off, |
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Line 1484 udp4_espinudp(struct mbuf **mp, int off, |
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/* Ignore keepalive packets */ |
/* Ignore keepalive packets */ |
if ((len == 1) && (*(unsigned char *)data == 0xff)) { |
if ((len == 1) && (*(unsigned char *)data == 0xff)) { |
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m_free(m); |
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*mp = NULL; /* avoid any further processiong by caller ... */ |
return 1; |
return 1; |
} |
} |
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Line 1573 udp4_espinudp(struct mbuf **mp, int off, |
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Line 1545 udp4_espinudp(struct mbuf **mp, int off, |
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ip->ip_p = IPPROTO_ESP; |
ip->ip_p = IPPROTO_ESP; |
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/* |
/* |
* 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. |
* |
*/ |
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if ((n = m_dup(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) { |
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printf("udp4_espinudp: m_dup failed\n"); |
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return 0; |
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} |
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/* |
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* 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 1591 udp4_espinudp(struct mbuf **mp, int off, |
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Line 1556 udp4_espinudp(struct mbuf **mp, int off, |
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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); |
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#ifdef FAST_IPSEC |
#ifdef FAST_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 |
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/* We handled it, it shouldn't be handled by UDP */ |
/* We handled it, it shouldn't be handled by UDP */ |
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*mp = NULL; /* avoid free by caller ... */ |
return 1; |
return 1; |
} |
} |
#endif |
#endif |