version 1.98.6.1, 2007/03/29 19:28:00 |
version 1.134, 2011/12/19 11:59:58 |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_gateway.h" |
#include "opt_inet.h" |
#include "opt_inet.h" |
#include "opt_inet6.h" |
#include "opt_inet6.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_pfil_hooks.h" |
#include "opt_pfil_hooks.h" |
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#include "opt_compat_netbsd.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
Line 83 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 85 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/syslog.h> |
#include <sys/syslog.h> |
#include <sys/proc.h> |
#include <sys/proc.h> |
#include <sys/sysctl.h> |
#include <sys/sysctl.h> |
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#include <sys/cprng.h> |
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#include <net/if.h> |
#include <net/if.h> |
#include <net/if_types.h> |
#include <net/if_types.h> |
Line 102 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 105 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet/ip6.h> |
#include <netinet/ip6.h> |
#include <netinet6/in6_var.h> |
#include <netinet6/in6_var.h> |
#include <netinet6/ip6_var.h> |
#include <netinet6/ip6_var.h> |
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#include <netinet6/ip6_private.h> |
#include <netinet6/in6_pcb.h> |
#include <netinet6/in6_pcb.h> |
#include <netinet/icmp6.h> |
#include <netinet/icmp6.h> |
#include <netinet6/scope6_var.h> |
#include <netinet6/scope6_var.h> |
#include <netinet6/in6_ifattach.h> |
#include <netinet6/in6_ifattach.h> |
#include <netinet6/nd6.h> |
#include <netinet6/nd6.h> |
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#ifdef IPSEC |
#ifdef KAME_IPSEC |
#include <netinet6/ipsec.h> |
#include <netinet6/ipsec.h> |
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#include <netinet6/ipsec_private.h> |
#endif |
#endif |
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#ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
Line 118 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 123 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netipsec/key.h> |
#include <netipsec/key.h> |
#endif /* FAST_IPSEC */ |
#endif /* FAST_IPSEC */ |
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#ifdef COMPAT_50 |
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#include <compat/sys/time.h> |
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#include <compat/sys/socket.h> |
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#endif |
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#include <netinet6/ip6protosw.h> |
#include <netinet6/ip6protosw.h> |
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#include "faith.h" |
#include "faith.h" |
Line 136 static int ip6qmaxlen = IFQ_MAXLEN; |
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Line 146 static int ip6qmaxlen = IFQ_MAXLEN; |
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struct in6_ifaddr *in6_ifaddr; |
struct in6_ifaddr *in6_ifaddr; |
struct ifqueue ip6intrq; |
struct ifqueue ip6intrq; |
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extern struct callout in6_tmpaddrtimer_ch; |
extern callout_t in6_tmpaddrtimer_ch; |
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int ip6_forward_srcrt; /* XXX */ |
int ip6_forward_srcrt; /* XXX */ |
int ip6_sourcecheck; /* XXX */ |
int ip6_sourcecheck; /* XXX */ |
Line 146 int ip6_sourcecheck_interval; /* XXX */ |
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Line 156 int ip6_sourcecheck_interval; /* XXX */ |
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struct pfil_head inet6_pfil_hook; |
struct pfil_head inet6_pfil_hook; |
#endif |
#endif |
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struct ip6stat ip6stat; |
percpu_t *ip6stat_percpu; |
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static void ip6_init2 __P((void *)); |
static void ip6_init2(void *); |
static struct m_tag *ip6_setdstifaddr __P((struct mbuf *, struct in6_ifaddr *)); |
static struct m_tag *ip6_setdstifaddr(struct mbuf *, const struct in6_ifaddr *); |
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static int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *)); |
static int ip6_hopopts_input(u_int32_t *, u_int32_t *, struct mbuf **, int *); |
static struct mbuf *ip6_pullexthdr __P((struct mbuf *, size_t, int)); |
static struct mbuf *ip6_pullexthdr(struct mbuf *, size_t, int); |
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static void sysctl_net_inet6_ip6_setup(struct sysctllog **); |
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/* |
/* |
* IP6 initialization: fill in IP6 protocol switch table. |
* IP6 initialization: fill in IP6 protocol switch table. |
* All protocols not implemented in kernel go to raw IP6 protocol handler. |
* All protocols not implemented in kernel go to raw IP6 protocol handler. |
*/ |
*/ |
void |
void |
ip6_init() |
ip6_init(void) |
{ |
{ |
const struct ip6protosw *pr; |
const struct ip6protosw *pr; |
int i; |
int i; |
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sysctl_net_inet6_ip6_setup(NULL); |
pr = (const struct ip6protosw *)pffindproto(PF_INET6, IPPROTO_RAW, SOCK_RAW); |
pr = (const struct ip6protosw *)pffindproto(PF_INET6, IPPROTO_RAW, SOCK_RAW); |
if (pr == 0) |
if (pr == 0) |
panic("ip6_init"); |
panic("ip6_init"); |
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addrsel_policy_init(); |
addrsel_policy_init(); |
nd6_init(); |
nd6_init(); |
frag6_init(); |
frag6_init(); |
ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; |
ip6_desync_factor = cprng_fast32() % MAX_TEMP_DESYNC_FACTOR; |
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ip6_init2((void *)0); |
ip6_init2((void *)0); |
#ifdef GATEWAY |
#ifdef GATEWAY |
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printf("ip6_init: WARNING: unable to register pfil hook, " |
printf("ip6_init: WARNING: unable to register pfil hook, " |
"error %d\n", i); |
"error %d\n", i); |
#endif /* PFIL_HOOKS */ |
#endif /* PFIL_HOOKS */ |
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ip6stat_percpu = percpu_alloc(sizeof(uint64_t) * IP6_NSTATS); |
} |
} |
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static void |
static void |
Line 202 ip6_init2(void *dummy) |
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Line 216 ip6_init2(void *dummy) |
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{ |
{ |
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/* nd6_timer_init */ |
/* nd6_timer_init */ |
callout_init(&nd6_timer_ch); |
callout_init(&nd6_timer_ch, CALLOUT_MPSAFE); |
callout_reset(&nd6_timer_ch, hz, nd6_timer, NULL); |
callout_reset(&nd6_timer_ch, hz, nd6_timer, NULL); |
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/* timer for regeneranation of temporary addresses randomize ID */ |
/* timer for regeneranation of temporary addresses randomize ID */ |
callout_init(&in6_tmpaddrtimer_ch); |
callout_init(&in6_tmpaddrtimer_ch, CALLOUT_MPSAFE); |
callout_reset(&in6_tmpaddrtimer_ch, |
callout_reset(&in6_tmpaddrtimer_ch, |
(ip6_temp_preferred_lifetime - ip6_desync_factor - |
(ip6_temp_preferred_lifetime - ip6_desync_factor - |
ip6_temp_regen_advance) * hz, |
ip6_temp_regen_advance) * hz, |
Line 217 ip6_init2(void *dummy) |
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Line 231 ip6_init2(void *dummy) |
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* IP6 input interrupt handling. Just pass the packet to ip6_input. |
* IP6 input interrupt handling. Just pass the packet to ip6_input. |
*/ |
*/ |
void |
void |
ip6intr() |
ip6intr(void) |
{ |
{ |
int s; |
int s; |
struct mbuf *m; |
struct mbuf *m; |
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mutex_enter(softnet_lock); |
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KERNEL_LOCK(1, NULL); |
for (;;) { |
for (;;) { |
s = splnet(); |
s = splnet(); |
IF_DEQUEUE(&ip6intrq, m); |
IF_DEQUEUE(&ip6intrq, m); |
splx(s); |
splx(s); |
if (m == 0) |
if (m == 0) |
return; |
break; |
/* drop the packet if IPv6 operation is disabled on the IF */ |
/* drop the packet if IPv6 operation is disabled on the IF */ |
if ((ND_IFINFO(m->m_pkthdr.rcvif)->flags & ND6_IFF_IFDISABLED)) { |
if ((ND_IFINFO(m->m_pkthdr.rcvif)->flags & ND6_IFF_IFDISABLED)) { |
m_freem(m); |
m_freem(m); |
return; |
break; |
} |
} |
ip6_input(m); |
ip6_input(m); |
} |
} |
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KERNEL_UNLOCK_ONE(NULL); |
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mutex_exit(softnet_lock); |
} |
} |
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extern struct route_in6 ip6_forward_rt; |
extern struct route ip6_forward_rt; |
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void |
void |
ip6_input(struct mbuf *m) |
ip6_input(struct mbuf *m) |
{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
int off = sizeof(struct ip6_hdr), nest; |
int hit, off = sizeof(struct ip6_hdr), nest; |
u_int32_t plen; |
u_int32_t plen; |
u_int32_t rtalert = ~0; |
u_int32_t rtalert = ~0; |
int nxt, ours = 0; |
int nxt, ours = 0, rh_present = 0; |
struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
int srcrt = 0; |
int srcrt = 0; |
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const struct rtentry *rt; |
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union { |
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struct sockaddr dst; |
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struct sockaddr_in6 dst6; |
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} u; |
#ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
struct m_tag *mtag; |
struct m_tag *mtag; |
struct tdb_ident *tdbi; |
struct tdb_ident *tdbi; |
Line 256 ip6_input(struct mbuf *m) |
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Line 279 ip6_input(struct mbuf *m) |
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int s, error; |
int s, error; |
#endif |
#endif |
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#ifdef IPSEC |
#ifdef KAME_IPSEC |
/* |
/* |
* should the inner packet be considered authentic? |
* should the inner packet be considered authentic? |
* see comment in ah4_input(). |
* see comment in ah4_input(). |
Line 275 ip6_input(struct mbuf *m) |
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Line 298 ip6_input(struct mbuf *m) |
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*/ |
*/ |
if (m->m_flags & M_EXT) { |
if (m->m_flags & M_EXT) { |
if (m->m_next) |
if (m->m_next) |
ip6stat.ip6s_mext2m++; |
IP6_STATINC(IP6_STAT_MEXT2M); |
else |
else |
ip6stat.ip6s_mext1++; |
IP6_STATINC(IP6_STAT_MEXT1); |
} else { |
} else { |
#define M2MMAX __arraycount(ip6stat.ip6s_m2m) |
#define M2MMAX 32 |
if (m->m_next) { |
if (m->m_next) { |
if (m->m_flags & M_LOOP) { |
if (m->m_flags & M_LOOP) { |
ip6stat.ip6s_m2m[lo0ifp->if_index]++; /* XXX */ |
/*XXX*/ IP6_STATINC(IP6_STAT_M2M + lo0ifp->if_index); |
} else if (m->m_pkthdr.rcvif->if_index < M2MMAX) |
} else if (m->m_pkthdr.rcvif->if_index < M2MMAX) { |
ip6stat.ip6s_m2m[m->m_pkthdr.rcvif->if_index]++; |
IP6_STATINC(IP6_STAT_M2M + |
else |
m->m_pkthdr.rcvif->if_index); |
ip6stat.ip6s_m2m[0]++; |
} else |
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IP6_STATINC(IP6_STAT_M2M); |
} else |
} else |
ip6stat.ip6s_m1++; |
IP6_STATINC(IP6_STAT_M1); |
#undef M2MMAX |
#undef M2MMAX |
} |
} |
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in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_receive); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_receive); |
ip6stat.ip6s_total++; |
IP6_STATINC(IP6_STAT_TOTAL); |
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/* |
/* |
* If the IPv6 header is not aligned, slurp it up into a new |
* If the IPv6 header is not aligned, slurp it up into a new |
Line 306 ip6_input(struct mbuf *m) |
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Line 330 ip6_input(struct mbuf *m) |
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if ((m = m_copyup(m, sizeof(struct ip6_hdr), |
if ((m = m_copyup(m, sizeof(struct ip6_hdr), |
(max_linkhdr + 3) & ~3)) == NULL) { |
(max_linkhdr + 3) & ~3)) == NULL) { |
/* XXXJRT new stat, please */ |
/* XXXJRT new stat, please */ |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
return; |
return; |
} |
} |
} else if (__predict_false(m->m_len < sizeof(struct ip6_hdr))) { |
} else if (__predict_false(m->m_len < sizeof(struct ip6_hdr))) { |
struct ifnet *inifp = m->m_pkthdr.rcvif; |
struct ifnet *inifp = m->m_pkthdr.rcvif; |
if ((m = m_pullup(m, sizeof(struct ip6_hdr))) == NULL) { |
if ((m = m_pullup(m, sizeof(struct ip6_hdr))) == NULL) { |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
return; |
return; |
} |
} |
Line 322 ip6_input(struct mbuf *m) |
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Line 346 ip6_input(struct mbuf *m) |
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ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
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if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) { |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) { |
ip6stat.ip6s_badvers++; |
IP6_STATINC(IP6_STAT_BADVERS); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
goto bad; |
goto bad; |
} |
} |
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#if defined(IPSEC) |
#if defined(KAME_IPSEC) |
/* IPv6 fast forwarding is not compatible with IPsec. */ |
/* IPv6 fast forwarding is not compatible with IPsec. */ |
m->m_flags &= ~M_CANFASTFWD; |
m->m_flags &= ~M_CANFASTFWD; |
#else |
#else |
Line 350 ip6_input(struct mbuf *m) |
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Line 374 ip6_input(struct mbuf *m) |
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* let ipfilter look at packet on the wire, |
* let ipfilter look at packet on the wire, |
* not the decapsulated packet. |
* not the decapsulated packet. |
*/ |
*/ |
#ifdef IPSEC |
#ifdef KAME_IPSEC |
if (!ipsec_getnhist(m)) |
if (!ipsec_getnhist(m)) |
#elif defined(FAST_IPSEC) |
#elif defined(FAST_IPSEC) |
if (!ipsec_indone(m)) |
if (!ipsec_indone(m)) |
Line 371 ip6_input(struct mbuf *m) |
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Line 395 ip6_input(struct mbuf *m) |
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} |
} |
#endif /* PFIL_HOOKS */ |
#endif /* PFIL_HOOKS */ |
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ip6stat.ip6s_nxthist[ip6->ip6_nxt]++; |
IP6_STATINC(IP6_STAT_NXTHIST + ip6->ip6_nxt); |
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#ifdef ALTQ |
#ifdef ALTQ |
if (altq_input != NULL && (*altq_input)(m, AF_INET6) == 0) { |
if (altq_input != NULL && (*altq_input)(m, AF_INET6) == 0) { |
Line 388 ip6_input(struct mbuf *m) |
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Line 412 ip6_input(struct mbuf *m) |
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/* |
/* |
* XXX: "badscope" is not very suitable for a multicast source. |
* XXX: "badscope" is not very suitable for a multicast source. |
*/ |
*/ |
ip6stat.ip6s_badscope++; |
IP6_STATINC(IP6_STAT_BADSCOPE); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
goto bad; |
goto bad; |
} |
} |
Line 406 ip6_input(struct mbuf *m) |
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Line 430 ip6_input(struct mbuf *m) |
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*/ |
*/ |
if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) || |
if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) || |
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
ip6stat.ip6s_badscope++; |
IP6_STATINC(IP6_STAT_BADSCOPE); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
goto bad; |
goto bad; |
} |
} |
Line 420 ip6_input(struct mbuf *m) |
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Line 444 ip6_input(struct mbuf *m) |
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*/ |
*/ |
if (IN6_IS_ADDR_V4COMPAT(&ip6->ip6_src) || |
if (IN6_IS_ADDR_V4COMPAT(&ip6->ip6_src) || |
IN6_IS_ADDR_V4COMPAT(&ip6->ip6_dst)) { |
IN6_IS_ADDR_V4COMPAT(&ip6->ip6_dst)) { |
ip6stat.ip6s_badscope++; |
IP6_STATINC(IP6_STAT_BADSCOPE); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
goto bad; |
goto bad; |
} |
} |
Line 441 ip6_input(struct mbuf *m) |
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Line 465 ip6_input(struct mbuf *m) |
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goto bad; |
goto bad; |
ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
if (in6_clearscope(&ip6->ip6_src) || in6_clearscope(&ip6->ip6_dst)) { |
if (in6_clearscope(&ip6->ip6_src) || in6_clearscope(&ip6->ip6_dst)) { |
ip6stat.ip6s_badscope++; /* XXX */ |
IP6_STATINC(IP6_STAT_BADSCOPE); /* XXX */ |
goto bad; |
goto bad; |
} |
} |
if (in6_setscope(&ip6->ip6_src, m->m_pkthdr.rcvif, NULL) || |
if (in6_setscope(&ip6->ip6_src, m->m_pkthdr.rcvif, NULL) || |
in6_setscope(&ip6->ip6_dst, m->m_pkthdr.rcvif, NULL)) { |
in6_setscope(&ip6->ip6_dst, m->m_pkthdr.rcvif, NULL)) { |
ip6stat.ip6s_badscope++; |
IP6_STATINC(IP6_STAT_BADSCOPE); |
goto bad; |
goto bad; |
} |
} |
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Line 465 ip6_input(struct mbuf *m) |
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Line 489 ip6_input(struct mbuf *m) |
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if (in6m) |
if (in6m) |
ours = 1; |
ours = 1; |
else if (!ip6_mrouter) { |
else if (!ip6_mrouter) { |
ip6stat.ip6s_notmember++; |
uint64_t *ip6s = IP6_STAT_GETREF(); |
ip6stat.ip6s_cantforward++; |
ip6s[IP6_STAT_NOTMEMBER]++; |
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ip6s[IP6_STAT_CANTFORWARD]++; |
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IP6_STAT_PUTREF(); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
goto bad; |
goto bad; |
} |
} |
Line 474 ip6_input(struct mbuf *m) |
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Line 500 ip6_input(struct mbuf *m) |
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goto hbhcheck; |
goto hbhcheck; |
} |
} |
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sockaddr_in6_init(&u.dst6, &ip6->ip6_dst, 0, 0, 0); |
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/* |
/* |
* Unicast check |
* Unicast check |
*/ |
*/ |
if (!IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
rt = rtcache_lookup2(&ip6_forward_rt, &u.dst, 1, &hit); |
&((const struct sockaddr_in6 *)rtcache_getdst((const struct route *)&ip6_forward_rt))->sin6_addr)) |
if (hit) |
rtcache_free((struct route *)&ip6_forward_rt); |
IP6_STATINC(IP6_STAT_FORWARD_CACHEHIT); |
else |
else |
rtcache_check((struct route *)&ip6_forward_rt); |
IP6_STATINC(IP6_STAT_FORWARD_CACHEMISS); |
if (ip6_forward_rt.ro_rt != NULL) { |
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/* XXX Revalidated route is accounted wrongly. */ |
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ip6stat.ip6s_forward_cachehit++; |
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} else { |
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struct sockaddr_in6 *dst6; |
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ip6stat.ip6s_forward_cachemiss++; |
#define rt6_getkey(__rt) satocsin6(rt_getkey(__rt)) |
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dst6 = &ip6_forward_rt.ro_dst; |
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memset(dst6, 0, sizeof(*dst6)); |
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dst6->sin6_len = sizeof(struct sockaddr_in6); |
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dst6->sin6_family = AF_INET6; |
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dst6->sin6_addr = ip6->ip6_dst; |
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rtcache_init((struct route *)&ip6_forward_rt); |
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} |
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#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
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/* |
/* |
* Accept the packet if the forwarding interface to the destination |
* Accept the packet if the forwarding interface to the destination |
Line 510 ip6_input(struct mbuf *m) |
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Line 522 ip6_input(struct mbuf *m) |
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* But we think it's even useful in some situations, e.g. when using |
* But we think it's even useful in some situations, e.g. when using |
* a special daemon which wants to intercept the packet. |
* a special daemon which wants to intercept the packet. |
*/ |
*/ |
if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && |
(ip6_forward_rt.ro_rt->rt_flags & |
(rt->rt_flags & (RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
(RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
!(rt->rt_flags & RTF_CLONED) && |
!(ip6_forward_rt.ro_rt->rt_flags & RTF_CLONED) && |
|
#if 0 |
#if 0 |
/* |
/* |
* The check below is redundant since the comparison of |
* The check below is redundant since the comparison of |
* the destination and the key of the rtentry has |
* the destination and the key of the rtentry has |
* already done through looking up the routing table. |
* already done through looking up the routing table. |
*/ |
*/ |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, &rt6_getkey(rt)->sin6_addr) && |
&rt6_key(ip6_forward_rt.ro_rt)->sin6_addr) && |
|
#endif |
#endif |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_LOOP) { |
rt->rt_ifp->if_type == IFT_LOOP) { |
struct in6_ifaddr *ia6 = |
struct in6_ifaddr *ia6 = (struct in6_ifaddr *)rt->rt_ifa; |
(struct in6_ifaddr *)ip6_forward_rt.ro_rt->rt_ifa; |
|
if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
m->m_flags |= M_ANYCAST6; |
m->m_flags |= M_ANYCAST6; |
/* |
/* |
Line 553 ip6_input(struct mbuf *m) |
|
Line 562 ip6_input(struct mbuf *m) |
|
*/ |
*/ |
#if defined(NFAITH) && 0 < NFAITH |
#if defined(NFAITH) && 0 < NFAITH |
if (ip6_keepfaith) { |
if (ip6_keepfaith) { |
if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && rt->rt_ifp != NULL && |
ip6_forward_rt.ro_rt->rt_ifp != NULL && |
rt->rt_ifp->if_type == IFT_FAITH) { |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_FAITH) { |
|
/* XXX do we need more sanity checks? */ |
/* XXX do we need more sanity checks? */ |
ours = 1; |
ours = 1; |
deliverifp = ip6_forward_rt.ro_rt->rt_ifp; /* faith */ |
deliverifp = rt->rt_ifp; /* faith */ |
goto hbhcheck; |
goto hbhcheck; |
} |
} |
} |
} |
Line 572 ip6_input(struct mbuf *m) |
|
Line 580 ip6_input(struct mbuf *m) |
|
* working right. |
* working right. |
*/ |
*/ |
struct ifaddr *ifa; |
struct ifaddr *ifa; |
TAILQ_FOREACH(ifa, &m->m_pkthdr.rcvif->if_addrlist, ifa_list) { |
IFADDR_FOREACH(ifa, m->m_pkthdr.rcvif) { |
if (ifa->ifa_addr == NULL) |
if (ifa->ifa_addr == NULL) |
continue; /* just for safety */ |
continue; /* just for safety */ |
if (ifa->ifa_addr->sa_family != AF_INET6) |
if (ifa->ifa_addr->sa_family != AF_INET6) |
Line 591 ip6_input(struct mbuf *m) |
|
Line 599 ip6_input(struct mbuf *m) |
|
* and we're not a router. |
* and we're not a router. |
*/ |
*/ |
if (!ip6_forwarding) { |
if (!ip6_forwarding) { |
ip6stat.ip6s_cantforward++; |
IP6_STATINC(IP6_STAT_CANTFORWARD); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
goto bad; |
goto bad; |
} |
} |
Line 603 ip6_input(struct mbuf *m) |
|
Line 611 ip6_input(struct mbuf *m) |
|
* as our interface address (e.g. multicast addresses, addresses |
* as our interface address (e.g. multicast addresses, addresses |
* within FAITH prefixes and such). |
* within FAITH prefixes and such). |
*/ |
*/ |
if (deliverifp && !ip6_getdstifaddr(m)) { |
if (deliverifp && ip6_getdstifaddr(m) == NULL) { |
struct in6_ifaddr *ia6; |
struct in6_ifaddr *ia6; |
|
|
ia6 = in6_ifawithifp(deliverifp, &ip6->ip6_dst); |
ia6 = in6_ifawithifp(deliverifp, &ip6->ip6_dst); |
if (ia6) { |
if (ia6 != NULL && ip6_setdstifaddr(m, ia6) == NULL) { |
if (!ip6_setdstifaddr(m, ia6)) { |
/* |
/* |
* XXX maybe we should drop the packet here, |
* XXX maybe we should drop the packet here, |
* as we could not provide enough information |
* as we could not provide enough information |
* to the upper layers. |
* to the upper layers. |
*/ |
*/ |
|
} |
|
} |
} |
} |
} |
|
|
Line 648 ip6_input(struct mbuf *m) |
|
Line 654 ip6_input(struct mbuf *m) |
|
* contained, ip6_hopopts_input() must set a valid |
* contained, ip6_hopopts_input() must set a valid |
* (non-zero) payload length to the variable plen. |
* (non-zero) payload length to the variable plen. |
*/ |
*/ |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
icmp6_error(m, ICMP6_PARAM_PROB, |
icmp6_error(m, ICMP6_PARAM_PROB, |
Line 659 ip6_input(struct mbuf *m) |
|
Line 665 ip6_input(struct mbuf *m) |
|
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
sizeof(struct ip6_hbh)); |
sizeof(struct ip6_hbh)); |
if (hbh == NULL) { |
if (hbh == NULL) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return; |
return; |
} |
} |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
Line 681 ip6_input(struct mbuf *m) |
|
Line 687 ip6_input(struct mbuf *m) |
|
* Drop packet if shorter than we expect. |
* Drop packet if shorter than we expect. |
*/ |
*/ |
if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
goto bad; |
goto bad; |
} |
} |
Line 706 ip6_input(struct mbuf *m) |
|
Line 712 ip6_input(struct mbuf *m) |
|
* must be discarded, else it may be accepted below. |
* must be discarded, else it may be accepted below. |
*/ |
*/ |
if (ip6_mrouter && ip6_mforward(ip6, m->m_pkthdr.rcvif, m)) { |
if (ip6_mrouter && ip6_mforward(ip6, m->m_pkthdr.rcvif, m)) { |
ip6stat.ip6s_cantforward++; |
IP6_STATINC(IP6_STAT_CANTFORWARD); |
m_freem(m); |
m_freem(m); |
return; |
return; |
} |
} |
Line 732 ip6_input(struct mbuf *m) |
|
Line 738 ip6_input(struct mbuf *m) |
|
*/ |
*/ |
if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) || |
if (IN6_IS_ADDR_V4MAPPED(&ip6->ip6_src) || |
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
ip6stat.ip6s_badscope++; |
IP6_STATINC(IP6_STAT_BADSCOPE); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
goto bad; |
goto bad; |
} |
} |
Line 748 ip6_input(struct mbuf *m) |
|
Line 754 ip6_input(struct mbuf *m) |
|
ia6->ia_ifa.ifa_data.ifad_inbytes += m->m_pkthdr.len; |
ia6->ia_ifa.ifa_data.ifad_inbytes += m->m_pkthdr.len; |
} |
} |
#endif |
#endif |
ip6stat.ip6s_delivered++; |
IP6_STATINC(IP6_STAT_DELIVERED); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
nest = 0; |
nest = 0; |
|
|
|
rh_present = 0; |
while (nxt != IPPROTO_DONE) { |
while (nxt != IPPROTO_DONE) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
ip6stat.ip6s_toomanyhdr++; |
IP6_STATINC(IP6_STAT_TOOMANYHDR); |
|
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
goto bad; |
goto bad; |
} |
} |
|
|
Line 763 ip6_input(struct mbuf *m) |
|
Line 771 ip6_input(struct mbuf *m) |
|
* more sanity checks in header chain processing. |
* more sanity checks in header chain processing. |
*/ |
*/ |
if (m->m_pkthdr.len < off) { |
if (m->m_pkthdr.len < off) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
goto bad; |
goto bad; |
} |
} |
|
|
#ifdef IPSEC |
if (nxt == IPPROTO_ROUTING) { |
|
if (rh_present++) { |
|
in6_ifstat_inc(m->m_pkthdr.rcvif, |
|
ifs6_in_hdrerr); |
|
IP6_STATINC(IP6_STAT_BADOPTIONS); |
|
goto bad; |
|
} |
|
} |
|
|
|
#ifdef KAME_IPSEC |
/* |
/* |
* enforce IPsec policy checking if we are seeing last header. |
* enforce IPsec policy checking if we are seeing last header. |
* note that we do not visit this with protocols with pcb layer |
* note that we do not visit this with protocols with pcb layer |
Line 776 ip6_input(struct mbuf *m) |
|
Line 793 ip6_input(struct mbuf *m) |
|
*/ |
*/ |
if ((inet6sw[ip6_protox[nxt]].pr_flags & PR_LASTHDR) != 0 && |
if ((inet6sw[ip6_protox[nxt]].pr_flags & PR_LASTHDR) != 0 && |
ipsec6_in_reject(m, NULL)) { |
ipsec6_in_reject(m, NULL)) { |
ipsec6stat.in_polvio++; |
IPSEC6_STATINC(IPSEC_STAT_IN_POLVIO); |
goto bad; |
goto bad; |
} |
} |
#endif |
#endif |
Line 812 ip6_input(struct mbuf *m) |
|
Line 829 ip6_input(struct mbuf *m) |
|
/* XXX error stat??? */ |
/* XXX error stat??? */ |
error = EINVAL; |
error = EINVAL; |
DPRINTF(("ip6_input: no SP, packet discarded\n"));/*XXX*/ |
DPRINTF(("ip6_input: no SP, packet discarded\n"));/*XXX*/ |
goto bad; |
|
} |
} |
splx(s); |
splx(s); |
if (error) |
if (error) |
Line 832 ip6_input(struct mbuf *m) |
|
Line 848 ip6_input(struct mbuf *m) |
|
* set/grab in6_ifaddr correspond to IPv6 destination address. |
* set/grab in6_ifaddr correspond to IPv6 destination address. |
*/ |
*/ |
static struct m_tag * |
static struct m_tag * |
ip6_setdstifaddr(m, ia6) |
ip6_setdstifaddr(struct mbuf *m, const struct in6_ifaddr *ia) |
struct mbuf *m; |
|
struct in6_ifaddr *ia6; |
|
{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
|
|
mtag = ip6_addaux(m); |
mtag = ip6_addaux(m); |
if (mtag) |
if (mtag != NULL) { |
((struct ip6aux *)(mtag + 1))->ip6a_dstia6 = ia6; |
struct ip6aux *ip6a; |
|
|
|
ip6a = (struct ip6aux *)(mtag + 1); |
|
in6_setscope(&ip6a->ip6a_src, ia->ia_ifp, &ip6a->ip6a_scope_id); |
|
ip6a->ip6a_src = ia->ia_addr.sin6_addr; |
|
ip6a->ip6a_flags = ia->ia6_flags; |
|
} |
return mtag; /* NULL if failed to set */ |
return mtag; /* NULL if failed to set */ |
} |
} |
|
|
struct in6_ifaddr * |
const struct ip6aux * |
ip6_getdstifaddr(m) |
ip6_getdstifaddr(struct mbuf *m) |
struct mbuf *m; |
|
{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
|
|
mtag = ip6_findaux(m); |
mtag = ip6_findaux(m); |
if (mtag) |
if (mtag != NULL) |
return ((struct ip6aux *)(mtag + 1))->ip6a_dstia6; |
return (struct ip6aux *)(mtag + 1); |
else |
else |
return NULL; |
return NULL; |
} |
} |
Line 860 ip6_getdstifaddr(m) |
|
Line 879 ip6_getdstifaddr(m) |
|
/* |
/* |
* Hop-by-Hop options header processing. If a valid jumbo payload option is |
* Hop-by-Hop options header processing. If a valid jumbo payload option is |
* included, the real payload length will be stored in plenp. |
* included, the real payload length will be stored in plenp. |
|
* |
|
* rtalertp - XXX: should be stored more smart way |
*/ |
*/ |
static int |
static int |
ip6_hopopts_input(plenp, rtalertp, mp, offp) |
ip6_hopopts_input(u_int32_t *plenp, u_int32_t *rtalertp, |
u_int32_t *plenp; |
struct mbuf **mp, int *offp) |
u_int32_t *rtalertp; /* XXX: should be stored more smart way */ |
|
struct mbuf **mp; |
|
int *offp; |
|
{ |
{ |
struct mbuf *m = *mp; |
struct mbuf *m = *mp; |
int off = *offp, hbhlen; |
int off = *offp, hbhlen; |
Line 876 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
Line 894 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, |
sizeof(struct ip6_hdr), sizeof(struct ip6_hbh)); |
sizeof(struct ip6_hdr), sizeof(struct ip6_hbh)); |
if (hbh == NULL) { |
if (hbh == NULL) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return -1; |
return -1; |
} |
} |
hbhlen = (hbh->ip6h_len + 1) << 3; |
hbhlen = (hbh->ip6h_len + 1) << 3; |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
hbhlen); |
hbhlen); |
if (hbh == NULL) { |
if (hbh == NULL) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return -1; |
return -1; |
} |
} |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
Line 910 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
Line 928 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
* opthead + hbhlen is located in continuous memory region. |
* opthead + hbhlen is located in continuous memory region. |
*/ |
*/ |
int |
int |
ip6_process_hopopts(m, opthead, hbhlen, rtalertp, plenp) |
ip6_process_hopopts(struct mbuf *m, u_int8_t *opthead, int hbhlen, |
struct mbuf *m; |
u_int32_t *rtalertp, u_int32_t *plenp) |
u_int8_t *opthead; |
|
int hbhlen; |
|
u_int32_t *rtalertp; |
|
u_int32_t *plenp; |
|
{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
int optlen = 0; |
int optlen = 0; |
Line 931 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 945 ip6_process_hopopts(m, opthead, hbhlen, |
|
break; |
break; |
case IP6OPT_PADN: |
case IP6OPT_PADN: |
if (hbhlen < IP6OPT_MINLEN) { |
if (hbhlen < IP6OPT_MINLEN) { |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
goto bad; |
goto bad; |
} |
} |
optlen = *(opt + 1) + 2; |
optlen = *(opt + 1) + 2; |
Line 939 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 953 ip6_process_hopopts(m, opthead, hbhlen, |
|
case IP6OPT_RTALERT: |
case IP6OPT_RTALERT: |
/* XXX may need check for alignment */ |
/* XXX may need check for alignment */ |
if (hbhlen < IP6OPT_RTALERT_LEN) { |
if (hbhlen < IP6OPT_RTALERT_LEN) { |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
goto bad; |
goto bad; |
} |
} |
if (*(opt + 1) != IP6OPT_RTALERT_LEN - 2) { |
if (*(opt + 1) != IP6OPT_RTALERT_LEN - 2) { |
Line 950 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 964 ip6_process_hopopts(m, opthead, hbhlen, |
|
return (-1); |
return (-1); |
} |
} |
optlen = IP6OPT_RTALERT_LEN; |
optlen = IP6OPT_RTALERT_LEN; |
bcopy((void *)(opt + 2), (void *)&rtalert_val, 2); |
memcpy((void *)&rtalert_val, (void *)(opt + 2), 2); |
*rtalertp = ntohs(rtalert_val); |
*rtalertp = ntohs(rtalert_val); |
break; |
break; |
case IP6OPT_JUMBO: |
case IP6OPT_JUMBO: |
/* XXX may need check for alignment */ |
/* XXX may need check for alignment */ |
if (hbhlen < IP6OPT_JUMBO_LEN) { |
if (hbhlen < IP6OPT_JUMBO_LEN) { |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
goto bad; |
goto bad; |
} |
} |
if (*(opt + 1) != IP6OPT_JUMBO_LEN - 2) { |
if (*(opt + 1) != IP6OPT_JUMBO_LEN - 2) { |
Line 974 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 988 ip6_process_hopopts(m, opthead, hbhlen, |
|
*/ |
*/ |
ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
if (ip6->ip6_plen) { |
if (ip6->ip6_plen) { |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
icmp6_error(m, ICMP6_PARAM_PROB, |
icmp6_error(m, ICMP6_PARAM_PROB, |
ICMP6_PARAMPROB_HEADER, |
ICMP6_PARAMPROB_HEADER, |
erroff + opt - opthead); |
erroff + opt - opthead); |
Line 985 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 999 ip6_process_hopopts(m, opthead, hbhlen, |
|
* We may see jumbolen in unaligned location, so |
* We may see jumbolen in unaligned location, so |
* we'd need to perform bcopy(). |
* we'd need to perform bcopy(). |
*/ |
*/ |
bcopy(opt + 2, &jumboplen, sizeof(jumboplen)); |
memcpy(&jumboplen, opt + 2, sizeof(jumboplen)); |
jumboplen = (u_int32_t)htonl(jumboplen); |
jumboplen = (u_int32_t)htonl(jumboplen); |
|
|
#if 1 |
#if 1 |
Line 998 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1012 ip6_process_hopopts(m, opthead, hbhlen, |
|
* there's no explicit mention in specification. |
* there's no explicit mention in specification. |
*/ |
*/ |
if (*plenp != 0) { |
if (*plenp != 0) { |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
icmp6_error(m, ICMP6_PARAM_PROB, |
icmp6_error(m, ICMP6_PARAM_PROB, |
ICMP6_PARAMPROB_HEADER, |
ICMP6_PARAMPROB_HEADER, |
erroff + opt + 2 - opthead); |
erroff + opt + 2 - opthead); |
Line 1010 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1024 ip6_process_hopopts(m, opthead, hbhlen, |
|
* jumbo payload length must be larger than 65535. |
* jumbo payload length must be larger than 65535. |
*/ |
*/ |
if (jumboplen <= IPV6_MAXPACKET) { |
if (jumboplen <= IPV6_MAXPACKET) { |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
icmp6_error(m, ICMP6_PARAM_PROB, |
icmp6_error(m, ICMP6_PARAM_PROB, |
ICMP6_PARAMPROB_HEADER, |
ICMP6_PARAMPROB_HEADER, |
erroff + opt + 2 - opthead); |
erroff + opt + 2 - opthead); |
Line 1021 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1035 ip6_process_hopopts(m, opthead, hbhlen, |
|
break; |
break; |
default: /* unknown option */ |
default: /* unknown option */ |
if (hbhlen < IP6OPT_MINLEN) { |
if (hbhlen < IP6OPT_MINLEN) { |
ip6stat.ip6s_toosmall++; |
IP6_STATINC(IP6_STAT_TOOSMALL); |
goto bad; |
goto bad; |
} |
} |
optlen = ip6_unknown_opt(opt, m, |
optlen = ip6_unknown_opt(opt, m, |
Line 1047 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1061 ip6_process_hopopts(m, opthead, hbhlen, |
|
* is not continuous in order to return an ICMPv6 error. |
* is not continuous in order to return an ICMPv6 error. |
*/ |
*/ |
int |
int |
ip6_unknown_opt(optp, m, off) |
ip6_unknown_opt(u_int8_t *optp, struct mbuf *m, int off) |
u_int8_t *optp; |
|
struct mbuf *m; |
|
int off; |
|
{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
|
|
Line 1061 ip6_unknown_opt(optp, m, off) |
|
Line 1072 ip6_unknown_opt(optp, m, off) |
|
m_freem(m); |
m_freem(m); |
return (-1); |
return (-1); |
case IP6OPT_TYPE_FORCEICMP: /* send ICMP even if multicasted */ |
case IP6OPT_TYPE_FORCEICMP: /* send ICMP even if multicasted */ |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_OPTION, off); |
icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_OPTION, off); |
return (-1); |
return (-1); |
case IP6OPT_TYPE_ICMP: /* send ICMP if not multicasted */ |
case IP6OPT_TYPE_ICMP: /* send ICMP if not multicasted */ |
ip6stat.ip6s_badoptions++; |
IP6_STATINC(IP6_STAT_BADOPTIONS); |
ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) || |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) || |
(m->m_flags & (M_BCAST|M_MCAST))) |
(m->m_flags & (M_BCAST|M_MCAST))) |
Line 1092 ip6_unknown_opt(optp, m, off) |
|
Line 1103 ip6_unknown_opt(optp, m, off) |
|
* you are using IP6_EXTHDR_CHECK() not m_pulldown()) |
* you are using IP6_EXTHDR_CHECK() not m_pulldown()) |
*/ |
*/ |
void |
void |
ip6_savecontrol(in6p, mp, ip6, m) |
ip6_savecontrol(struct in6pcb *in6p, struct mbuf **mp, |
struct in6pcb *in6p; |
struct ip6_hdr *ip6, struct mbuf *m) |
struct mbuf **mp; |
|
struct ip6_hdr *ip6; |
|
struct mbuf *m; |
|
{ |
{ |
#ifdef RFC2292 |
#ifdef RFC2292 |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
Line 1104 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1112 ip6_savecontrol(in6p, mp, ip6, m) |
|
#define IS2292(x, y) (y) |
#define IS2292(x, y) (y) |
#endif |
#endif |
|
|
#ifdef SO_TIMESTAMP |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
#ifdef SO_OTIMESTAMP |
|
|| in6p->in6p_socket->so_options & SO_OTIMESTAMP |
|
#endif |
|
) { |
struct timeval tv; |
struct timeval tv; |
|
|
microtime(&tv); |
microtime(&tv); |
|
#ifdef SO_OTIMESTAMP |
|
if (in6p->in6p_socket->so_options & SO_OTIMESTAMP) { |
|
struct timeval50 tv50; |
|
timeval_to_timeval50(&tv, &tv50); |
|
*mp = sbcreatecontrol((void *) &tv50, sizeof(tv50), |
|
SCM_OTIMESTAMP, SOL_SOCKET); |
|
} else |
|
#endif |
*mp = sbcreatecontrol((void *) &tv, sizeof(tv), |
*mp = sbcreatecontrol((void *) &tv, sizeof(tv), |
SCM_TIMESTAMP, SOL_SOCKET); |
SCM_TIMESTAMP, SOL_SOCKET); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
#endif |
|
|
|
/* some OSes call this logic with IPv4 packet, for SO_TIMESTAMP */ |
/* some OSes call this logic with IPv4 packet, for SO_TIMESTAMP */ |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) |
Line 1124 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1142 ip6_savecontrol(in6p, mp, ip6, m) |
|
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
struct in6_pktinfo pi6; |
struct in6_pktinfo pi6; |
|
|
bcopy(&ip6->ip6_dst, &pi6.ipi6_addr, sizeof(struct in6_addr)); |
memcpy(&pi6.ipi6_addr, &ip6->ip6_dst, sizeof(struct in6_addr)); |
in6_clearscope(&pi6.ipi6_addr); /* XXX */ |
in6_clearscope(&pi6.ipi6_addr); /* XXX */ |
pi6.ipi6_ifindex = m->m_pkthdr.rcvif ? |
pi6.ipi6_ifindex = m->m_pkthdr.rcvif ? |
m->m_pkthdr.rcvif->if_index : 0; |
m->m_pkthdr.rcvif->if_index : 0; |
Line 1183 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1201 ip6_savecontrol(in6p, mp, ip6, m) |
|
ext = ip6_pullexthdr(m, sizeof(struct ip6_hdr), |
ext = ip6_pullexthdr(m, sizeof(struct ip6_hdr), |
xip6->ip6_nxt); |
xip6->ip6_nxt); |
if (ext == NULL) { |
if (ext == NULL) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return; |
return; |
} |
} |
hbh = mtod(ext, struct ip6_hbh *); |
hbh = mtod(ext, struct ip6_hbh *); |
hbhlen = (hbh->ip6h_len + 1) << 3; |
hbhlen = (hbh->ip6h_len + 1) << 3; |
if (hbhlen != ext->m_len) { |
if (hbhlen != ext->m_len) { |
m_freem(ext); |
m_freem(ext); |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return; |
return; |
} |
} |
|
|
Line 1242 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1260 ip6_savecontrol(in6p, mp, ip6, m) |
|
|
|
ext = ip6_pullexthdr(m, off, nxt); |
ext = ip6_pullexthdr(m, off, nxt); |
if (ext == NULL) { |
if (ext == NULL) { |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return; |
return; |
} |
} |
ip6e = mtod(ext, struct ip6_ext *); |
ip6e = mtod(ext, struct ip6_ext *); |
Line 1252 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1270 ip6_savecontrol(in6p, mp, ip6, m) |
|
elen = (ip6e->ip6e_len + 1) << 3; |
elen = (ip6e->ip6e_len + 1) << 3; |
if (elen != ext->m_len) { |
if (elen != ext->m_len) { |
m_freem(ext); |
m_freem(ext); |
ip6stat.ip6s_tooshort++; |
IP6_STATINC(IP6_STAT_TOOSHORT); |
return; |
return; |
} |
} |
KASSERT(IP6_HDR_ALIGNED_P(ip6e)); |
KASSERT(IP6_HDR_ALIGNED_P(ip6e)); |
|
|
switch (nxt) { |
switch (nxt) { |
case IPPROTO_DSTOPTS: |
case IPPROTO_DSTOPTS: |
if (!in6p->in6p_flags & IN6P_DSTOPTS) |
if (!(in6p->in6p_flags & IN6P_DSTOPTS)) |
break; |
break; |
|
|
*mp = sbcreatecontrol((void *)ip6e, elen, |
*mp = sbcreatecontrol((void *)ip6e, elen, |
Line 1270 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1288 ip6_savecontrol(in6p, mp, ip6, m) |
|
break; |
break; |
|
|
case IPPROTO_ROUTING: |
case IPPROTO_ROUTING: |
if (!in6p->in6p_flags & IN6P_RTHDR) |
if (!(in6p->in6p_flags & IN6P_RTHDR)) |
break; |
break; |
|
|
*mp = sbcreatecontrol((void *)ip6e, elen, |
*mp = sbcreatecontrol((void *)ip6e, elen, |
Line 1353 ip6_notify_pmtu(struct in6pcb *in6p, con |
|
Line 1371 ip6_notify_pmtu(struct in6pcb *in6p, con |
|
* contains the result, or NULL on error. |
* contains the result, or NULL on error. |
*/ |
*/ |
static struct mbuf * |
static struct mbuf * |
ip6_pullexthdr(m, off, nxt) |
ip6_pullexthdr(struct mbuf *m, size_t off, int nxt) |
struct mbuf *m; |
|
size_t off; |
|
int nxt; |
|
{ |
{ |
struct ip6_ext ip6e; |
struct ip6_ext ip6e; |
size_t elen; |
size_t elen; |
Line 1415 ip6_pullexthdr(m, off, nxt) |
|
Line 1430 ip6_pullexthdr(m, off, nxt) |
|
* we develop `neater' mechanism to process extension headers. |
* we develop `neater' mechanism to process extension headers. |
*/ |
*/ |
u_int8_t * |
u_int8_t * |
ip6_get_prevhdr(m, off) |
ip6_get_prevhdr(struct mbuf *m, int off) |
struct mbuf *m; |
|
int off; |
|
{ |
{ |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
|
|
Line 1456 ip6_get_prevhdr(m, off) |
|
Line 1469 ip6_get_prevhdr(m, off) |
|
* get next header offset. m will be retained. |
* get next header offset. m will be retained. |
*/ |
*/ |
int |
int |
ip6_nexthdr(m, off, proto, nxtp) |
ip6_nexthdr(struct mbuf *m, int off, int proto, int *nxtp) |
struct mbuf *m; |
|
int off; |
|
int proto; |
|
int *nxtp; |
|
{ |
{ |
struct ip6_hdr ip6; |
struct ip6_hdr ip6; |
struct ip6_ext ip6e; |
struct ip6_ext ip6e; |
Line 1539 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1548 ip6_nexthdr(m, off, proto, nxtp) |
|
* get offset for the last header in the chain. m will be kept untainted. |
* get offset for the last header in the chain. m will be kept untainted. |
*/ |
*/ |
int |
int |
ip6_lasthdr(m, off, proto, nxtp) |
ip6_lasthdr(struct mbuf *m, int off, int proto, int *nxtp) |
struct mbuf *m; |
|
int off; |
|
int proto; |
|
int *nxtp; |
|
{ |
{ |
int newoff; |
int newoff; |
int nxt; |
int nxt; |
Line 1567 ip6_lasthdr(m, off, proto, nxtp) |
|
Line 1572 ip6_lasthdr(m, off, proto, nxtp) |
|
} |
} |
|
|
struct m_tag * |
struct m_tag * |
ip6_addaux(m) |
ip6_addaux(struct mbuf *m) |
struct mbuf *m; |
|
{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
|
|
|
|
M_NOWAIT); |
M_NOWAIT); |
if (mtag) { |
if (mtag) { |
m_tag_prepend(m, mtag); |
m_tag_prepend(m, mtag); |
bzero(mtag + 1, sizeof(struct ip6aux)); |
memset(mtag + 1, 0, sizeof(struct ip6aux)); |
} |
} |
} |
} |
return mtag; |
return mtag; |
} |
} |
|
|
struct m_tag * |
struct m_tag * |
ip6_findaux(m) |
ip6_findaux(struct mbuf *m) |
struct mbuf *m; |
|
{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
|
|
|
|
} |
} |
|
|
void |
void |
ip6_delaux(m) |
ip6_delaux(struct mbuf *m) |
struct mbuf *m; |
|
{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
|
|
|
|
static int |
static int |
sysctl_net_inet6_ip6_maxflows(SYSCTLFN_ARGS) |
sysctl_net_inet6_ip6_maxflows(SYSCTLFN_ARGS) |
{ |
{ |
int s; |
int error; |
|
|
s = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
error = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
if (s || newp == NULL) |
if (error || newp == NULL) |
return (s); |
return (error); |
|
|
s = splsoftnet(); |
mutex_enter(softnet_lock); |
ip6flow_reap(0); |
KERNEL_LOCK(1, NULL); |
splx(s); |
|
|
ip6flow_reap(0); |
|
|
|
KERNEL_UNLOCK_ONE(NULL); |
|
mutex_exit(softnet_lock); |
|
|
return (0); |
return (0); |
} |
} |
|
|
static int |
static int |
Line 1643 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
Line 1649 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
/* |
/* |
* Can only fail due to malloc() |
* Can only fail due to malloc() |
*/ |
*/ |
if (ip6flow_invalidate_all(tmp)) |
mutex_enter(softnet_lock); |
return ENOMEM; |
KERNEL_LOCK(1, NULL); |
|
|
|
error = ip6flow_invalidate_all(tmp); |
|
|
|
KERNEL_UNLOCK_ONE(NULL); |
|
mutex_exit(softnet_lock); |
} else { |
} else { |
/* |
/* |
* EINVAL if not a power of 2 |
* EINVAL if not a power of 2 |
*/ |
*/ |
return EINVAL; |
error = EINVAL; |
} |
} |
|
|
return (0); |
return error; |
} |
} |
#endif /* GATEWAY */ |
#endif /* GATEWAY */ |
|
|
Line 1660 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
Line 1671 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
* System control for IP6 |
* System control for IP6 |
*/ |
*/ |
|
|
u_char inet6ctlerrmap[PRC_NCMDS] = { |
const u_char inet6ctlerrmap[PRC_NCMDS] = { |
0, 0, 0, 0, |
0, 0, 0, 0, |
0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH, |
0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH, |
EHOSTUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED, |
EHOSTUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED, |
Line 1669 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
Line 1680 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
ENOPROTOOPT |
ENOPROTOOPT |
}; |
}; |
|
|
SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, "sysctl net.inet6.ip6 subtree setup") |
static int |
|
sysctl_net_inet6_ip6_stats(SYSCTLFN_ARGS) |
|
{ |
|
|
|
return (NETSTAT_SYSCTL(ip6stat_percpu, IP6_NSTATS)); |
|
} |
|
|
|
static void |
|
sysctl_net_inet6_ip6_setup(struct sysctllog **clog) |
{ |
{ |
#ifdef RFC2292 |
#ifdef RFC2292 |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
Line 1775 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1794 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
IPV6CTL_ACCEPT_RTADV, CTL_EOL); |
IPV6CTL_ACCEPT_RTADV, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "rtadv_maxroutes", |
|
SYSCTL_DESCR("Maximum number of routes accepted via router advertisements"), |
|
NULL, 0, &ip6_rtadv_maxroutes, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_RTADV_MAXROUTES, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_INT, "rtadv_numroutes", |
|
SYSCTL_DESCR("Current number of routes accepted via router advertisements"), |
|
NULL, 0, &nd6_numroutes, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_RTADV_NUMROUTES, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_INT, "keepfaith", |
CTLTYPE_INT, "keepfaith", |
SYSCTL_DESCR("Activate faith interface"), |
SYSCTL_DESCR("Activate faith interface"), |
NULL, 0, &ip6_keepfaith, 0, |
NULL, 0, &ip6_keepfaith, 0, |
Line 1922 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1955 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_STRUCT, "stats", |
CTLTYPE_STRUCT, "stats", |
SYSCTL_DESCR("IPv6 statistics"), |
SYSCTL_DESCR("IPv6 statistics"), |
NULL, 0, &ip6stat, sizeof(ip6stat), |
sysctl_net_inet6_ip6_stats, 0, NULL, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
IPV6CTL_STATS, CTL_EOL); |
IPV6CTL_STATS, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
Line 1956 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1989 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
#endif |
#endif |
} |
} |
|
|
|
void |
|
ip6_statinc(u_int stat) |
|
{ |
|
|
|
KASSERT(stat < IP6_NSTATS); |
|
IP6_STATINC(stat); |
|
} |