| version 1.8, 1999/10/01 10:15:16 |
version 1.8.8.1, 1999/12/27 18:36:25 |
|
|
| #include <sys/time.h> |
#include <sys/time.h> |
| #include <sys/kernel.h> |
#include <sys/kernel.h> |
| #include <sys/syslog.h> |
#include <sys/syslog.h> |
| #ifdef __NetBSD__ |
#if !defined(__bsdi__) && !(defined(__FreeBSD__) && __FreeBSD__ < 3) |
| #include <sys/proc.h> |
#include <sys/proc.h> |
| #endif |
#endif |
| |
|
|
|
| #include <net/netisr.h> |
#include <net/netisr.h> |
| |
|
| #include <netinet/in.h> |
#include <netinet/in.h> |
| #include <netinet6/in6_var.h> |
|
| #include <netinet/in_systm.h> |
#include <netinet/in_systm.h> |
| |
#ifdef INET |
| |
#include <netinet/ip.h> |
| |
#include <netinet/ip_icmp.h> |
| |
#endif /*INET*/ |
| |
#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802) |
| |
#include <netinet/in_pcb.h> |
| |
#endif |
| |
#include <netinet6/in6_var.h> |
| #include <netinet6/ip6.h> |
#include <netinet6/ip6.h> |
| #if !defined(__FreeBSD__) || __FreeBSD__ < 3 |
#if !((defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802)) |
| #include <netinet6/in6_pcb.h> |
#include <netinet6/in6_pcb.h> |
| #else |
|
| #include <netinet/in_pcb.h> |
|
| #endif |
#endif |
| #include <netinet6/ip6_var.h> |
#include <netinet6/ip6_var.h> |
| #include <netinet6/icmp6.h> |
#include <netinet6/icmp6.h> |
| #include <netinet6/in6_ifattach.h> |
#include <netinet6/in6_ifattach.h> |
| #include <netinet6/nd6.h> |
#include <netinet6/nd6.h> |
| |
#include <netinet6/in6_prefix.h> |
| |
|
| #ifdef INET |
#ifdef IPV6FIREWALL |
| #include <netinet/ip.h> |
#include <netinet6/ip6_fw.h> |
| #include <netinet/ip_icmp.h> |
#endif |
| #endif /*INET*/ |
|
| |
|
| #include <netinet6/ip6protosw.h> |
#include <netinet6/ip6protosw.h> |
| |
|
| /* we need it for NLOOP. */ |
/* we need it for NLOOP. */ |
| |
#ifndef __bsdi__ |
| #include "loop.h" |
#include "loop.h" |
| |
#endif |
| #include "faith.h" |
#include "faith.h" |
| |
|
| #include "gif.h" |
#include "gif.h" |
| #include "bpfilter.h" |
#include "bpfilter.h" |
| |
|
| |
#include <net/net_osdep.h> |
| |
|
| |
#ifdef __OpenBSD__ /*KAME IPSEC*/ |
| |
#undef IPSEC |
| |
#endif |
| |
|
| extern struct domain inet6domain; |
extern struct domain inet6domain; |
| extern struct ip6protosw inet6sw[]; |
extern struct ip6protosw inet6sw[]; |
| #ifdef __bsdi__ |
#ifdef __bsdi__ |
| |
#if _BSDI_VERSION < 199802 |
| extern struct ifnet loif; |
extern struct ifnet loif; |
| |
#else |
| |
extern struct ifnet *loifp; |
| |
#endif |
| #endif |
#endif |
| |
|
| u_char ip6_protox[IPPROTO_MAX]; |
u_char ip6_protox[IPPROTO_MAX]; |
| Line 135 static int ip6qmaxlen = IFQ_MAXLEN; |
|
| Line 152 static int ip6qmaxlen = IFQ_MAXLEN; |
|
| struct in6_ifaddr *in6_ifaddr; |
struct in6_ifaddr *in6_ifaddr; |
| struct ifqueue ip6intrq; |
struct ifqueue ip6intrq; |
| |
|
| #ifdef __NetBSD__ |
#if defined(__NetBSD__) || defined(__OpenBSD__) |
| extern struct ifnet loif[NLOOP]; |
extern struct ifnet loif[NLOOP]; |
| |
#endif |
| int ip6_forward_srcrt; /* XXX */ |
int ip6_forward_srcrt; /* XXX */ |
| int ip6_sourcecheck; /* XXX */ |
int ip6_sourcecheck; /* XXX */ |
| int ip6_sourcecheck_interval; /* XXX */ |
int ip6_sourcecheck_interval; /* XXX */ |
| |
|
| |
#ifdef IPV6FIREWALL |
| |
/* firewall hooks */ |
| |
ip6_fw_chk_t *ip6_fw_chk_ptr; |
| |
ip6_fw_ctl_t *ip6_fw_ctl_ptr; |
| #endif |
#endif |
| |
|
| struct ip6stat ip6stat; |
struct ip6stat ip6stat; |
| Line 148 static void ip6_init2 __P((void *)); |
|
| Line 171 static void ip6_init2 __P((void *)); |
|
| |
|
| static int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *)); |
static int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *)); |
| |
|
| |
#if defined(PTR) |
| |
extern int ip6_protocol_tr; |
| |
|
| |
int ptr_in6 __P((struct mbuf *, struct mbuf **)); |
| |
extern void ip_forward __P((struct mbuf *, int)); |
| |
#endif |
| |
|
| /* |
/* |
| * 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. |
|
|
| ip6intrq.ifq_maxlen = ip6qmaxlen; |
ip6intrq.ifq_maxlen = ip6qmaxlen; |
| nd6_init(); |
nd6_init(); |
| frag6_init(); |
frag6_init(); |
| |
#ifdef IPV6FIREWALL |
| |
ip6_fw_init(); |
| |
#endif |
| /* |
/* |
| * in many cases, random() here does NOT return random number |
* in many cases, random() here does NOT return random number |
| * as initialization during bootstrap time occur in fixed order. |
* as initialization during bootstrap time occur in fixed order. |
|
|
| microtime(&tv); |
microtime(&tv); |
| ip6_flow_seq = random() ^ tv.tv_usec; |
ip6_flow_seq = random() ^ tv.tv_usec; |
| |
|
| |
#ifndef __FreeBSD__ |
| ip6_init2((void *)0); |
ip6_init2((void *)0); |
| |
#endif |
| } |
} |
| |
|
| static void |
static void |
| ip6_init2(dummy) |
ip6_init2(dummy) |
| void *dummy; |
void *dummy; |
| { |
{ |
| int i; |
int ret; |
| |
#if defined(__bsdi__) && _BSDI_VERSION < 199802 |
| |
struct ifnet *loifp = &loif; |
| |
#endif |
| |
|
| |
/* get EUI64 from somewhere */ |
| |
ret = in6_ifattach_getifid(NULL); |
| |
|
| /* |
/* |
| * to route local address of p2p link to loopback, |
* to route local address of p2p link to loopback, |
| * assign loopback address first. |
* assign loopback address first. |
| */ |
*/ |
| for (i = 0; i < NLOOP; i++) |
#ifdef __bsdi__ |
| in6_ifattach(&loif[i], IN6_IFT_LOOP, NULL, 0); |
in6_ifattach(loifp, IN6_IFT_LOOP, NULL, 0); |
| |
#else |
| /* get EUI64 from somewhere, attach pseudo interfaces */ |
in6_ifattach(&loif[0], IN6_IFT_LOOP, NULL, 0); |
| if (in6_ifattach_getifid(NULL) == 0) |
#endif |
| in6_ifattach_p2p(); |
|
| |
|
| /* nd6_timer_init */ |
/* nd6_timer_init */ |
| timeout(nd6_timer, (caddr_t)0, hz); |
timeout(nd6_timer, (caddr_t)0, hz); |
| |
/* router renumbering prefix list maintenance */ |
| |
timeout(in6_rr_timer, (caddr_t)0, hz); |
| } |
} |
| |
|
| #ifdef __FreeBSD__ |
#ifdef __FreeBSD__ |
|
|
| ip6_input(m) |
ip6_input(m) |
| struct mbuf *m; |
struct mbuf *m; |
| { |
{ |
| register struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
| int off = sizeof(struct ip6_hdr), nest; |
int 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; |
| |
struct ifnet *deliverifp = NULL; |
| |
#if defined(__bsdi__) && _BSDI_VERSION < 199802 |
| |
struct ifnet *loifp = &loif; |
| |
#endif |
| |
|
| #ifdef IPSEC |
#ifdef IPSEC |
| /* |
/* |
|
|
| m->m_flags &= ~M_AUTHIPDGM; |
m->m_flags &= ~M_AUTHIPDGM; |
| } |
} |
| #endif |
#endif |
| |
|
| /* |
/* |
| * mbuf statistics by kazu |
* mbuf statistics by kazu |
| */ |
*/ |
|
|
| ip6stat.ip6s_mext1++; |
ip6stat.ip6s_mext1++; |
| } else { |
} else { |
| if (m->m_next) { |
if (m->m_next) { |
| if (m->m_flags & M_LOOP) |
if (m->m_flags & M_LOOP) { |
| |
#ifdef __bsdi__ |
| |
ip6stat.ip6s_m2m[loifp->if_index]++; /*XXX*/ |
| |
#else |
| ip6stat.ip6s_m2m[loif[0].if_index]++; /*XXX*/ |
ip6stat.ip6s_m2m[loif[0].if_index]++; /*XXX*/ |
| |
#endif |
| |
} |
| else if (m->m_pkthdr.rcvif->if_index <= 31) |
else if (m->m_pkthdr.rcvif->if_index <= 31) |
| ip6stat.ip6s_m2m[m->m_pkthdr.rcvif->if_index]++; |
ip6stat.ip6s_m2m[m->m_pkthdr.rcvif->if_index]++; |
| else |
else |
|
|
| ip6stat.ip6s_m1++; |
ip6stat.ip6s_m1++; |
| } |
} |
| |
|
| IP6_EXTHDR_CHECK(m, 0, sizeof(struct ip6_hdr), /*nothing*/); |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_receive); |
| |
|
| ip6stat.ip6s_total++; |
ip6stat.ip6s_total++; |
| |
|
| if (m->m_len < sizeof(struct ip6_hdr) && |
#ifndef PULLDOWN_TEST |
| (m = m_pullup(m, sizeof(struct ip6_hdr))) == 0) { |
/* XXX is the line really necessary? */ |
| ip6stat.ip6s_toosmall++; |
IP6_EXTHDR_CHECK(m, 0, sizeof(struct ip6_hdr), /*nothing*/); |
| return; |
#endif |
| |
|
| |
if (m->m_len < sizeof(struct ip6_hdr)) { |
| |
struct ifnet *inifp; |
| |
inifp = m->m_pkthdr.rcvif; |
| |
if ((m = m_pullup(m, sizeof(struct ip6_hdr))) == 0) { |
| |
ip6stat.ip6s_toosmall++; |
| |
in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
| |
return; |
| |
} |
| } |
} |
| |
|
| ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
| |
|
| if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) { |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) { |
| ip6stat.ip6s_badvers++; |
ip6stat.ip6s_badvers++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
| ip6stat.ip6s_nxthist[ip6->ip6_nxt]++; |
ip6stat.ip6s_nxthist[ip6->ip6_nxt]++; |
| |
|
| |
#ifdef IPV6FIREWALL |
| |
/* |
| |
* Check with the firewall... |
| |
*/ |
| |
if (ip6_fw_chk_ptr) { |
| |
u_short port = 0; |
| |
/* If ipfw says divert, we have to just drop packet */ |
| |
/* use port as a dummy argument */ |
| |
if ((*ip6_fw_chk_ptr)(&ip6, NULL, &port, &m)) { |
| |
m_freem(m); |
| |
m = NULL; |
| |
} |
| |
if (!m) |
| |
return; |
| |
} |
| |
#endif |
| |
|
| /* |
/* |
| * Scope check |
* Scope check |
| */ |
*/ |
| if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_src) || |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_src) || |
| IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_dst)) { |
IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_dst)) { |
| ip6stat.ip6s_badscope++; |
ip6stat.ip6s_badscope++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
| goto bad; |
goto bad; |
| } |
} |
| if (IN6_IS_ADDR_LOOPBACK(&ip6->ip6_src) || |
if (IN6_IS_ADDR_LOOPBACK(&ip6->ip6_src) || |
| IN6_IS_ADDR_LOOPBACK(&ip6->ip6_dst)) { |
IN6_IS_ADDR_LOOPBACK(&ip6->ip6_dst)) { |
| if (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) { |
if (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) { |
| ours = 1; |
ours = 1; |
| |
deliverifp = m->m_pkthdr.rcvif; |
| goto hbhcheck; |
goto hbhcheck; |
| } else { |
} else { |
| ip6stat.ip6s_badscope++; |
ip6stat.ip6s_badscope++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
| goto bad; |
goto bad; |
| } |
} |
| } |
} |
|
|
| if (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) { |
if (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) { |
| if (IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_dst)) { |
if (IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_dst)) { |
| ours = 1; |
ours = 1; |
| |
deliverifp = m->m_pkthdr.rcvif; |
| goto hbhcheck; |
goto hbhcheck; |
| } |
} |
| } else { |
} else { |
|
|
| = htons(m->m_pkthdr.rcvif->if_index); |
= htons(m->m_pkthdr.rcvif->if_index); |
| } |
} |
| |
|
| |
#if defined(PTR) |
| |
/* |
| |
* |
| |
*/ |
| |
if (ip6_protocol_tr) |
| |
{ |
| |
struct mbuf *m1 = NULL; |
| |
|
| |
switch (ptr_in6(m, &m1)) |
| |
{ |
| |
case IPPROTO_IP: goto mcastcheck; |
| |
case IPPROTO_IPV4: ip_forward(m1, 0); break; |
| |
case IPPROTO_IPV6: ip6_forward(m1, 0); break; |
| |
case IPPROTO_MAX: /* discard this packet */ |
| |
default: |
| |
} |
| |
|
| |
if (m != m1) |
| |
m_freem(m); |
| |
|
| |
return; |
| |
} |
| |
|
| |
mcastcheck: |
| |
#endif |
| |
|
| /* |
/* |
| * Multicast check |
* Multicast check |
| */ |
*/ |
| if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { |
| struct in6_multi *in6m = 0; |
struct in6_multi *in6m = 0; |
| |
|
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_mcast); |
| /* |
/* |
| * See if we belong to the destination multicast group on the |
* See if we belong to the destination multicast group on the |
| * arrival interface. |
* arrival interface. |
|
|
| else if (!ip6_mrouter) { |
else if (!ip6_mrouter) { |
| ip6stat.ip6s_notmember++; |
ip6stat.ip6s_notmember++; |
| ip6stat.ip6s_cantforward++; |
ip6stat.ip6s_cantforward++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
| goto bad; |
goto bad; |
| } |
} |
| |
deliverifp = m->m_pkthdr.rcvif; |
| goto hbhcheck; |
goto hbhcheck; |
| } |
} |
| |
|
|
|
| ip6_forward_rt.ro_dst.sin6_family = AF_INET6; |
ip6_forward_rt.ro_dst.sin6_family = AF_INET6; |
| ip6_forward_rt.ro_dst.sin6_addr = ip6->ip6_dst; |
ip6_forward_rt.ro_dst.sin6_addr = ip6->ip6_dst; |
| |
|
| #if defined(__bsdi__) || defined(__NetBSD__) |
|
| rtalloc((struct route *)&ip6_forward_rt); |
|
| #endif |
|
| #ifdef __FreeBSD__ |
#ifdef __FreeBSD__ |
| rtalloc_ign((struct route *)&ip6_forward_rt, RTF_PRCLONING); |
rtalloc_ign((struct route *)&ip6_forward_rt, RTF_PRCLONING); |
| |
#else |
| |
rtalloc((struct route *)&ip6_forward_rt); |
| #endif |
#endif |
| } |
} |
| |
|
|
|
| IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
| &rt6_key(ip6_forward_rt.ro_rt)->sin6_addr) && |
&rt6_key(ip6_forward_rt.ro_rt)->sin6_addr) && |
| #endif |
#endif |
| #ifdef __bsdi__ |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_LOOP) { |
| ip6_foward.rt.ro_rt->rt_ifp == &loif |
|
| #else |
|
| ip6_forward_rt.ro_rt->rt_ifp == &loif[0] |
|
| #endif |
|
| ) { |
|
| struct in6_ifaddr *ia6 = |
struct in6_ifaddr *ia6 = |
| (struct in6_ifaddr *)ip6_forward_rt.ro_rt->rt_ifa; |
(struct in6_ifaddr *)ip6_forward_rt.ro_rt->rt_ifa; |
| /* packet to tentative address must not be received */ |
/* packet to tentative address must not be received */ |
|
|
| if (!(ia6->ia6_flags & IN6_IFF_NOTREADY)) { |
if (!(ia6->ia6_flags & IN6_IFF_NOTREADY)) { |
| /* this interface is ready */ |
/* this interface is ready */ |
| ours = 1; |
ours = 1; |
| |
deliverifp = ia6->ia_ifp; /* correct? */ |
| goto hbhcheck; |
goto hbhcheck; |
| } else { |
} else { |
| /* this interface is not ready, fall through */ |
/* this interface is not ready, fall through */ |
|
|
| && ip6_forward_rt.ro_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*/ |
| |
goto hbhcheck; |
| |
} |
| |
} |
| |
#endif |
| |
|
| |
#if 0 |
| |
{ |
| |
/* |
| |
* Last resort: check in6_ifaddr for incoming interface. |
| |
* The code is here until I update the "goto ours hack" code above |
| |
* working right. |
| |
*/ |
| |
struct ifaddr *ifa; |
| |
for (ifa = m->m_pkthdr.rcvif->if_addrlist.tqh_first; |
| |
ifa; |
| |
ifa = ifa->ifa_list.tqe_next) { |
| |
if (ifa->ifa_addr == NULL) |
| |
continue; /* just for safety */ |
| |
if (ifa->ifa_addr->sa_family != AF_INET6) |
| |
continue; |
| |
if (IN6_ARE_ADDR_EQUAL(IFA_IN6(ifa), &ip6->ip6_dst)) { |
| |
ours = 1; |
| |
deliverifp = ifa->ifa_ifp; |
| goto hbhcheck; |
goto hbhcheck; |
| } |
} |
| } |
} |
| |
} |
| #endif |
#endif |
| |
|
| /* |
/* |
|
|
| */ |
*/ |
| if (!ip6_forwarding) { |
if (!ip6_forwarding) { |
| ip6stat.ip6s_cantforward++; |
ip6stat.ip6s_cantforward++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
|
|
| */ |
*/ |
| plen = (u_int32_t)ntohs(ip6->ip6_plen); |
plen = (u_int32_t)ntohs(ip6->ip6_plen); |
| if (ip6->ip6_nxt == IPPROTO_HOPOPTS) { |
if (ip6->ip6_nxt == IPPROTO_HOPOPTS) { |
| if (ip6_hopopts_input(&plen, &rtalert, &m, &off)) |
struct ip6_hbh *hbh; |
| |
|
| |
if (ip6_hopopts_input(&plen, &rtalert, &m, &off)) { |
| |
#if 0 /*touches NULL pointer*/ |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_discard); |
| |
#endif |
| return; /* m have already been freed */ |
return; /* m have already been freed */ |
| |
} |
| /* adjust pointer */ |
/* adjust pointer */ |
| ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
| nxt = ((struct ip6_hbh *)(ip6 + 1))->ip6h_nxt; |
#ifndef PULLDOWN_TEST |
| |
/* ip6_hopopts_input() ensures that mbuf is contiguous */ |
| |
hbh = (struct ip6_hbh *)(ip6 + 1); |
| |
#else |
| |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
| |
sizeof(struct ip6_hbh)); |
| |
if (hbh == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return; |
| |
} |
| |
#endif |
| |
nxt = hbh->ip6h_nxt; |
| |
|
| /* |
/* |
| * accept the packet if a router alert option is included |
* accept the packet if a router alert option is included |
|
|
| */ |
*/ |
| if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
| ip6stat.ip6s_tooshort++; |
ip6stat.ip6s_tooshort++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
| goto bad; |
goto bad; |
| } |
} |
| if (m->m_pkthdr.len > sizeof(struct ip6_hdr) + plen) { |
if (m->m_pkthdr.len > sizeof(struct ip6_hdr) + plen) { |
|
|
| /* |
/* |
| * Tell launch routine the next header |
* Tell launch routine the next header |
| */ |
*/ |
| |
#if defined(__NetBSD__) && defined(IFA_STATS) |
| |
if (IFA_STATS && deliverifp != NULL) { |
| |
struct in6_ifaddr *ia6; |
| |
ip6 = mtod(m, struct ip6_hdr *); |
| |
ia6 = in6_ifawithifp(deliverifp, &ip6->ip6_dst); |
| |
if (ia6) |
| |
ia6->ia_ifa.ifa_data.ifad_inbytes += m->m_pkthdr.len; |
| |
} |
| |
#endif |
| ip6stat.ip6s_delivered++; |
ip6stat.ip6s_delivered++; |
| |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
| nest = 0; |
nest = 0; |
| while (nxt != IPPROTO_DONE) { |
while (nxt != IPPROTO_DONE) { |
| if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
|
|
| */ |
*/ |
| if (m->m_pkthdr.len < off) { |
if (m->m_pkthdr.len < off) { |
| ip6stat.ip6s_tooshort++; |
ip6stat.ip6s_tooshort++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_truncated); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
| Line 546 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
| Line 708 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
| u_int8_t *opt; |
u_int8_t *opt; |
| |
|
| /* validation of the length of the header */ |
/* validation of the length of the header */ |
| |
#ifndef PULLDOWN_TEST |
| IP6_EXTHDR_CHECK(m, off, sizeof(*hbh), -1); |
IP6_EXTHDR_CHECK(m, off, sizeof(*hbh), -1); |
| hbh = (struct ip6_hbh *)(mtod(m, caddr_t) + off); |
hbh = (struct ip6_hbh *)(mtod(m, caddr_t) + off); |
| hbhlen = (hbh->ip6h_len + 1) << 3; |
hbhlen = (hbh->ip6h_len + 1) << 3; |
| |
|
| IP6_EXTHDR_CHECK(m, off, hbhlen, -1); |
IP6_EXTHDR_CHECK(m, off, hbhlen, -1); |
| hbh = (struct ip6_hbh *)(mtod(m, caddr_t) + off); |
hbh = (struct ip6_hbh *)(mtod(m, caddr_t) + off); |
| |
#else |
| |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, |
| |
sizeof(struct ip6_hdr), sizeof(struct ip6_hbh)); |
| |
if (hbh == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return -1; |
| |
} |
| |
hbhlen = (hbh->ip6h_len + 1) << 3; |
| |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, sizeof(struct ip6_hdr), |
| |
hbhlen); |
| |
if (hbh == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return -1; |
| |
} |
| |
#endif |
| off += hbhlen; |
off += hbhlen; |
| hbhlen -= sizeof(struct ip6_hbh); |
hbhlen -= sizeof(struct ip6_hbh); |
| opt = (u_int8_t *)hbh + sizeof(struct ip6_hbh); |
opt = (u_int8_t *)hbh + sizeof(struct ip6_hbh); |
| Line 725 ip6_unknown_opt(optp, m, off) |
|
| Line 903 ip6_unknown_opt(optp, m, off) |
|
| } |
} |
| |
|
| /* |
/* |
| * Create the "control" list for this pcb |
* Create the "control" list for this pcb. |
| |
* |
| |
* The routine will be called from upper layer handlers like tcp6_input(). |
| |
* Thus the routine assumes that the caller (tcp6_input) have already |
| |
* called IP6_EXTHDR_CHECK() and all the extension headers are located in the |
| |
* very first mbuf on the mbuf chain. |
| |
* We may want to add some infinite loop prevention or sanity checks for safety. |
| |
* (This applies only when you are using KAME mbuf chain restriction, i.e. |
| |
* you are using IP6_EXTHDR_CHECK() not m_pulldown()) |
| */ |
*/ |
| void |
void |
| ip6_savecontrol(in6p, mp, ip6, m) |
ip6_savecontrol(in6p, mp, ip6, m) |
| |
#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(HAVE_NRL_INPCB) |
| |
register struct inpcb *in6p; |
| |
#else |
| register struct in6pcb *in6p; |
register struct in6pcb *in6p; |
| |
#endif |
| register struct mbuf **mp; |
register struct mbuf **mp; |
| register struct ip6_hdr *ip6; |
register struct ip6_hdr *ip6; |
| register struct mbuf *m; |
register struct mbuf *m; |
| { |
{ |
| #ifdef __NetBSD__ |
#ifdef HAVE_NRL_INPCB |
| |
# define in6p_flags inp_flags |
| |
#endif |
| |
#if defined(__NetBSD__) || (defined(__FreeBSD__) && __FreeBSD__ >= 3) |
| struct proc *p = curproc; /* XXX */ |
struct proc *p = curproc; /* XXX */ |
| #endif |
#endif |
| #ifdef __bsdi__ |
#ifdef __bsdi__ |
| # define sbcreatecontrol so_cmsg |
# define sbcreatecontrol so_cmsg |
| #endif |
#endif |
| |
int privileged; |
| |
|
| |
privileged = 0; |
| |
#if defined(__NetBSD__) || (defined(__FreeBSD__) && __FreeBSD__ >= 3) |
| |
if (p && !suser(p->p_ucred, &p->p_acflag)) |
| |
privileged++; |
| |
#else |
| |
#ifdef HAVE_NRL_INPCB |
| |
if ((in6p->inp_socket->so_state & SS_PRIV) != 0) |
| |
privileged++; |
| |
#else |
| |
if ((in6p->in6p_socket->so_state & SS_PRIV) != 0) |
| |
privileged++; |
| |
#endif |
| |
#endif |
| |
|
| |
#ifdef SO_TIMESTAMP |
| if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
| struct timeval tv; |
struct timeval tv; |
| |
|
| Line 750 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 959 ip6_savecontrol(in6p, mp, ip6, m) |
|
| if (*mp) |
if (*mp) |
| mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
| } |
} |
| |
#endif |
| if (in6p->in6p_flags & IN6P_RECVDSTADDR) { |
if (in6p->in6p_flags & IN6P_RECVDSTADDR) { |
| *mp = sbcreatecontrol((caddr_t) &ip6->ip6_dst, |
*mp = sbcreatecontrol((caddr_t) &ip6->ip6_dst, |
| sizeof(struct in6_addr), IPV6_RECVDSTADDR, |
sizeof(struct in6_addr), IPV6_RECVDSTADDR, |
| Line 797 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1007 ip6_savecontrol(in6p, mp, ip6, m) |
|
| * be some hop-by-hop options which can be returned to normal user. |
* be some hop-by-hop options which can be returned to normal user. |
| * See RFC 2292 section 6. |
* See RFC 2292 section 6. |
| */ |
*/ |
| if ((in6p->in6p_flags & IN6P_HOPOPTS) && |
if ((in6p->in6p_flags & IN6P_HOPOPTS) && privileged) { |
| p && !suser(p->p_ucred, &p->p_acflag)) { |
|
| /* |
/* |
| * Check if a hop-by-hop options header is contatined in the |
* Check if a hop-by-hop options header is contatined in the |
| * received packet, and if so, store the options as ancillary |
* received packet, and if so, store the options as ancillary |
| Line 808 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1017 ip6_savecontrol(in6p, mp, ip6, m) |
|
| */ |
*/ |
| struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
| if (ip6->ip6_nxt == IPPROTO_HOPOPTS) { |
if (ip6->ip6_nxt == IPPROTO_HOPOPTS) { |
| struct ip6_hbh *hbh = (struct ip6_hbh *)(ip6 + 1); |
struct ip6_hbh *hbh; |
| |
int hbhlen; |
| |
|
| |
#ifndef PULLDOWN_TEST |
| |
hbh = (struct ip6_hbh *)(ip6 + 1); |
| |
hbhlen = (hbh->ip6h_len + 1) << 3; |
| |
#else |
| |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, |
| |
sizeof(struct ip6_hdr), sizeof(struct ip6_hbh)); |
| |
if (hbh == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return; |
| |
} |
| |
hbhlen = (hbh->ip6h_len + 1) << 3; |
| |
IP6_EXTHDR_GET(hbh, struct ip6_hbh *, m, |
| |
sizeof(struct ip6_hdr), hbhlen); |
| |
if (hbh == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return; |
| |
} |
| |
#endif |
| |
|
| /* |
/* |
| * XXX: We copy whole the header even if a jumbo |
* XXX: We copy whole the header even if a jumbo |
| Line 816 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1045 ip6_savecontrol(in6p, mp, ip6, m) |
|
| * be removed before returning in the RFC 2292. |
* be removed before returning in the RFC 2292. |
| * But it's too painful operation... |
* But it's too painful operation... |
| */ |
*/ |
| *mp = sbcreatecontrol((caddr_t)hbh, |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
| (hbh->ip6h_len + 1) << 3, |
|
| IPV6_HOPOPTS, IPPROTO_IPV6); |
IPV6_HOPOPTS, IPPROTO_IPV6); |
| if (*mp) |
if (*mp) |
| mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
| Line 837 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1065 ip6_savecontrol(in6p, mp, ip6, m) |
|
| * the chain of ancillary data. |
* the chain of ancillary data. |
| */ |
*/ |
| while(1) { /* is explicit loop prevention necessary? */ |
while(1) { /* is explicit loop prevention necessary? */ |
| struct ip6_ext *ip6e = |
struct ip6_ext *ip6e; |
| (struct ip6_ext *)(mtod(m, caddr_t) + off); |
int elen; |
| |
|
| |
#ifndef PULLDOWN_TEST |
| |
ip6e = (struct ip6_ext *)(mtod(m, caddr_t) + off); |
| |
if (nxt == IPPROTO_AH) |
| |
elen = (ip6e->ip6e_len + 2) << 2; |
| |
else |
| |
elen = (ip6e->ip6e_len + 1) << 3; |
| |
#else |
| |
IP6_EXTHDR_GET(ip6e, struct ip6_ext *, m, off, |
| |
sizeof(struct ip6_ext)); |
| |
if (ip6e == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return; |
| |
} |
| |
if (nxt == IPPROTO_AH) |
| |
elen = (ip6e->ip6e_len + 2) << 2; |
| |
else |
| |
elen = (ip6e->ip6e_len + 1) << 3; |
| |
IP6_EXTHDR_GET(ip6e, struct ip6_ext *, m, off, elen); |
| |
if (ip6e == NULL) { |
| |
ip6stat.ip6s_tooshort++; |
| |
return; |
| |
} |
| |
#endif |
| |
|
| switch(nxt) { |
switch(nxt) { |
| case IPPROTO_DSTOPTS: |
case IPPROTO_DSTOPTS: |
| Line 850 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1102 ip6_savecontrol(in6p, mp, ip6, m) |
|
| * the option. |
* the option. |
| * See the comments on IN6_HOPOPTS. |
* See the comments on IN6_HOPOPTS. |
| */ |
*/ |
| if (!p || !suser(p->p_ucred, &p->p_acflag)) |
if (!privileged) |
| break; |
break; |
| |
|
| *mp = sbcreatecontrol((caddr_t)ip6e, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
| (ip6e->ip6e_len + 1) << 3, |
|
| IPV6_DSTOPTS, |
IPV6_DSTOPTS, |
| IPPROTO_IPV6); |
IPPROTO_IPV6); |
| if (*mp) |
if (*mp) |
| Line 865 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1116 ip6_savecontrol(in6p, mp, ip6, m) |
|
| if (!in6p->in6p_flags & IN6P_RTHDR) |
if (!in6p->in6p_flags & IN6P_RTHDR) |
| break; |
break; |
| |
|
| *mp = sbcreatecontrol((caddr_t)ip6e, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
| (ip6e->ip6e_len + 1) << 3, |
|
| IPV6_RTHDR, |
IPV6_RTHDR, |
| IPPROTO_IPV6); |
IPPROTO_IPV6); |
| if (*mp) |
if (*mp) |
| Line 889 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1139 ip6_savecontrol(in6p, mp, ip6, m) |
|
| } |
} |
| |
|
| /* proceed with the next header. */ |
/* proceed with the next header. */ |
| if (nxt == IPPROTO_AH) |
off += elen; |
| off += (ip6e->ip6e_len + 2) << 2; |
|
| else |
|
| off += (ip6e->ip6e_len + 1) << 3; |
|
| nxt = ip6e->ip6e_nxt; |
nxt = ip6e->ip6e_nxt; |
| } |
} |
| loopend: |
loopend: |
| } |
} |
| if ((in6p->in6p_flags & IN6P_HOPOPTS) |
if ((in6p->in6p_flags & IN6P_HOPOPTS) && privileged) { |
| && p && !suser(p->p_ucred, &p->p_acflag)) { |
|
| /* to be done */ |
/* to be done */ |
| } |
} |
| if ((in6p->in6p_flags & IN6P_DSTOPTS) |
if ((in6p->in6p_flags & IN6P_DSTOPTS) && privileged) { |
| && p && !suser(p->p_ucred, &p->p_acflag)) { |
|
| /* to be done */ |
/* to be done */ |
| } |
} |
| /* IN6P_RTHDR - to be done */ |
/* IN6P_RTHDR - to be done */ |
| Line 910 ip6_savecontrol(in6p, mp, ip6, m) |
|
| Line 1155 ip6_savecontrol(in6p, mp, ip6, m) |
|
| #ifdef __bsdi__ |
#ifdef __bsdi__ |
| # undef sbcreatecontrol |
# undef sbcreatecontrol |
| #endif |
#endif |
| |
#ifdef __OpenBSD__ |
| |
# undef in6p_flags |
| |
#endif |
| } |
} |
| |
|
| /* |
/* |
| Line 975 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
| Line 1223 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
| ENOPROTOOPT |
ENOPROTOOPT |
| }; |
}; |
| |
|
| #ifdef __NetBSD__ |
#if defined(__NetBSD__) || defined(__OpenBSD__) |
| #include <vm/vm.h> |
#include <vm/vm.h> |
| #include <sys/sysctl.h> |
#include <sys/sysctl.h> |
| |
|
| Line 1029 ip6_sysctl(name, namelen, oldp, oldlenp, |
|
| Line 1277 ip6_sysctl(name, namelen, oldp, oldlenp, |
|
| &ip6_gif_hlim); |
&ip6_gif_hlim); |
| case IPV6CTL_KAME_VERSION: |
case IPV6CTL_KAME_VERSION: |
| return sysctl_rdstring(oldp, oldlenp, newp, __KAME_VERSION); |
return sysctl_rdstring(oldp, oldlenp, newp, __KAME_VERSION); |
| |
case IPV6CTL_USE_DEPRECATED: |
| |
return sysctl_int(oldp, oldlenp, newp, newlen, |
| |
&ip6_use_deprecated); |
| default: |
default: |
| return EOPNOTSUPP; |
return EOPNOTSUPP; |
| } |
} |
| /* NOTREACHED */ |
/* NOTREACHED */ |
| } |
} |
| #endif /* __NetBSD__ */ |
#endif /* __NetBSD__ || __OpenBSD__ */ |
| |
|
| |
#ifdef __bsdi__ |
| |
int *ip6_sysvars[] = IPV6CTL_VARS; |
| |
|
| |
int |
| |
ip6_sysctl(name, namelen, oldp, oldlenp, newp, newlen) |
| |
int *name; |
| |
u_int namelen; |
| |
void *oldp; |
| |
size_t *oldlenp; |
| |
void *newp; |
| |
size_t newlen; |
| |
{ |
| |
if (name[0] >= IPV6CTL_MAXID) |
| |
return (EOPNOTSUPP); |
| |
|
| |
switch (name[0]) { |
| |
case IPV6CTL_STATS: |
| |
return sysctl_rdtrunc(oldp, oldlenp, newp, &ip6stat, |
| |
sizeof(ip6stat)); |
| |
case IPV6CTL_KAME_VERSION: |
| |
return sysctl_rdstring(oldp, oldlenp, newp, __KAME_VERSION); |
| |
default: |
| |
return (sysctl_int_arr(ip6_sysvars, name, namelen, |
| |
oldp, oldlenp, newp, newlen)); |
| |
} |
| |
} |
| |
#endif /* __bsdi__ */ |