version 1.78.2.1, 2006/06/21 15:11:08 |
version 1.149.2.1.6.3, 2019/09/17 18:08:13 |
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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_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 84 __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> |
#include <net/if_dl.h> |
#include <net/if_dl.h> |
#include <net/route.h> |
#include <net/route.h> |
#include <net/netisr.h> |
#include <net/pktqueue.h> |
#ifdef PFIL_HOOKS |
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#include <net/pfil.h> |
#include <net/pfil.h> |
#endif |
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#include <netinet/in.h> |
#include <netinet/in.h> |
#include <netinet/in_systm.h> |
#include <netinet/in_systm.h> |
#ifdef INET |
#ifdef INET |
#include <netinet/ip.h> |
#include <netinet/ip.h> |
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#include <netinet/ip_var.h> |
#include <netinet/ip_icmp.h> |
#include <netinet/ip_icmp.h> |
#endif /* INET */ |
#endif /* INET */ |
#include <netinet/ip6.h> |
#include <netinet/ip6.h> |
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#include <netinet/portalgo.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> |
Line 109 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/nd6.h> |
#include <netinet6/nd6.h> |
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#ifdef IPSEC |
#ifdef IPSEC |
#include <netinet6/ipsec.h> |
#include <netipsec/ipsec.h> |
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#include <netipsec/ipsec6.h> |
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#include <netipsec/key.h> |
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#endif /* 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> |
#endif |
#endif |
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#include <netinet6/ip6protosw.h> |
#include <netinet6/ip6protosw.h> |
Line 126 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 136 __KERNEL_RCSID(0, "$NetBSD$"); |
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extern struct domain inet6domain; |
extern struct domain inet6domain; |
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u_char ip6_protox[IPPROTO_MAX]; |
u_char ip6_protox[IPPROTO_MAX]; |
static int ip6qmaxlen = IFQ_MAXLEN; |
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struct in6_ifaddr *in6_ifaddr; |
struct in6_ifaddr *in6_ifaddr; |
struct ifqueue ip6intrq; |
pktqueue_t *ip6_pktq __read_mostly; |
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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 */ |
int ip6_sourcecheck_interval; /* XXX */ |
int ip6_sourcecheck_interval; /* XXX */ |
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#ifdef PFIL_HOOKS |
pfil_head_t *inet6_pfil_hook; |
struct pfil_head inet6_pfil_hook; |
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#endif |
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struct ip6stat ip6stat; |
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static void ip6_init2 __P((void *)); |
percpu_t *ip6stat_percpu; |
static struct m_tag *ip6_setdstifaddr __P((struct mbuf *, struct in6_ifaddr *)); |
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static int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *)); |
static void ip6_init2(void *); |
static struct mbuf *ip6_pullexthdr __P((struct mbuf *, size_t, int)); |
static void ip6intr(void *); |
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static struct m_tag *ip6_setdstifaddr(struct mbuf *, const struct in6_ifaddr *); |
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static int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *, |
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u_int32_t *); |
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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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if (pr->pr_domain->dom_family == PF_INET6 && |
if (pr->pr_domain->dom_family == PF_INET6 && |
pr->pr_protocol && pr->pr_protocol != IPPROTO_RAW) |
pr->pr_protocol && pr->pr_protocol != IPPROTO_RAW) |
ip6_protox[pr->pr_protocol] = pr - inet6sw; |
ip6_protox[pr->pr_protocol] = pr - inet6sw; |
ip6intrq.ifq_maxlen = ip6qmaxlen; |
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ip6_pktq = pktq_create(IFQ_MAXLEN, ip6intr, NULL); |
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KASSERT(ip6_pktq != NULL); |
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scope6_init(); |
scope6_init(); |
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); |
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#ifdef PFIL_HOOKS |
ip6_init2(NULL); |
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#ifdef GATEWAY |
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ip6flow_init(ip6_hashsize); |
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#endif |
/* Register our Packet Filter hook. */ |
/* Register our Packet Filter hook. */ |
inet6_pfil_hook.ph_type = PFIL_TYPE_AF; |
inet6_pfil_hook = pfil_head_create(PFIL_TYPE_AF, (void *)AF_INET6); |
inet6_pfil_hook.ph_af = AF_INET6; |
KASSERT(inet6_pfil_hook != NULL); |
i = pfil_head_register(&inet6_pfil_hook); |
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if (i != 0) |
ip6stat_percpu = percpu_alloc(sizeof(uint64_t) * IP6_NSTATS); |
printf("ip6_init: WARNING: unable to register pfil hook, " |
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"error %d\n", i); |
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#endif /* PFIL_HOOKS */ |
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} |
} |
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static void |
static void |
ip6_init2(dummy) |
ip6_init2(void *dummy) |
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 208 ip6_init2(dummy) |
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Line 219 ip6_init2(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 |
static void |
ip6intr() |
ip6intr(void *arg __unused) |
{ |
{ |
int s; |
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struct mbuf *m; |
struct mbuf *m; |
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for (;;) { |
mutex_enter(softnet_lock); |
s = splnet(); |
while ((m = pktq_dequeue(ip6_pktq)) != NULL) { |
IF_DEQUEUE(&ip6intrq, m); |
const ifnet_t *ifp = m->m_pkthdr.rcvif; |
splx(s); |
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if (m == 0) |
/* |
return; |
* Drop the packet if IPv6 is disabled on the interface. |
/* 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(ifp)->flags & ND6_IFF_IFDISABLED)) { |
m_freem(m); |
m_freem(m); |
return; |
continue; |
} |
} |
ip6_input(m); |
ip6_input(m); |
} |
} |
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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(m) |
ip6_input(struct mbuf *m) |
struct mbuf *m; |
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{ |
{ |
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, frg_present; |
struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
int srcrt = 0; |
int srcrt = 0; |
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const struct rtentry *rt; |
#ifdef IPSEC |
union { |
/* |
struct sockaddr dst; |
* should the inner packet be considered authentic? |
struct sockaddr_in6 dst6; |
* see comment in ah4_input(). |
} u; |
*/ |
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m->m_flags &= ~M_AUTHIPHDR; |
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m->m_flags &= ~M_AUTHIPDGM; |
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#endif |
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/* |
/* |
* make sure we don't have onion peering information into m_tag. |
* make sure we don't have onion peering information into m_tag. |
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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 (sizeof(ip6stat.ip6s_m2m)/sizeof(ip6stat.ip6s_m2m[0])) |
#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 |
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* it. Otherwise, if it is aligned, make sure the entire base |
* it. Otherwise, if it is aligned, make sure the entire base |
* IPv6 header is in the first mbuf of the chain. |
* IPv6 header is in the first mbuf of the chain. |
*/ |
*/ |
if (IP6_HDR_ALIGNED_P(mtod(m, caddr_t)) == 0) { |
if (IP6_HDR_ALIGNED_P(mtod(m, void *)) == 0) { |
struct ifnet *inifp = m->m_pkthdr.rcvif; |
struct ifnet *inifp = m->m_pkthdr.rcvif; |
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; |
} |
} |
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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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#ifdef PFIL_HOOKS |
/* |
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* Assume that we can create a fast-forward IP flow entry |
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* based on this packet. |
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*/ |
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m->m_flags |= M_CANFASTFWD; |
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/* |
/* |
* Run through list of hooks for input packets. If there are any |
* Run through list of hooks for input packets. If there are any |
* filters which require that additional packets in the flow are |
* filters which require that additional packets in the flow are |
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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 |
#if defined(IPSEC) |
if (!ipsec_getnhist(m)) |
if (!ipsec_used || !ipsec_indone(m)) |
#else |
#else |
if (1) |
if (1) |
#endif |
#endif |
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struct in6_addr odst; |
struct in6_addr odst; |
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odst = ip6->ip6_dst; |
odst = ip6->ip6_dst; |
if (pfil_run_hooks(&inet6_pfil_hook, &m, m->m_pkthdr.rcvif, |
if (pfil_run_hooks(inet6_pfil_hook, &m, m->m_pkthdr.rcvif, |
PFIL_IN) != 0) |
PFIL_IN) != 0) |
return; |
return; |
if (m == NULL) |
if (m == NULL) |
return; |
return; |
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if (__predict_false(m->m_len < sizeof(struct ip6_hdr))) { |
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struct ifnet *inifp = m->m_pkthdr.rcvif; |
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if ((m = m_pullup(m, sizeof(struct ip6_hdr))) == NULL) { |
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IP6_STATINC(IP6_STAT_TOOSMALL); |
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in6_ifstat_inc(inifp, ifs6_in_hdrerr); |
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return; |
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} |
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} |
ip6 = mtod(m, struct ip6_hdr *); |
ip6 = mtod(m, struct ip6_hdr *); |
srcrt = !IN6_ARE_ADDR_EQUAL(&odst, &ip6->ip6_dst); |
srcrt = !IN6_ARE_ADDR_EQUAL(&odst, &ip6->ip6_dst); |
} |
} |
#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) { |
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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; |
} |
} |
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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; |
} |
} |
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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; |
} |
} |
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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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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; |
} |
} |
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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 (ip6_forward_rt.ro_rt != NULL && |
rt = rtcache_lookup2(&ip6_forward_rt, &u.dst, 1, &hit); |
(ip6_forward_rt.ro_rt->rt_flags & RTF_UP) != 0 && |
if (hit) |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
IP6_STATINC(IP6_STAT_FORWARD_CACHEHIT); |
&((struct sockaddr_in6 *)(&ip6_forward_rt.ro_dst))->sin6_addr)) |
else |
ip6stat.ip6s_forward_cachehit++; |
IP6_STATINC(IP6_STAT_FORWARD_CACHEMISS); |
else { |
|
struct sockaddr_in6 *dst6; |
|
|
|
if (ip6_forward_rt.ro_rt) { |
|
/* route is down or destination is different */ |
|
ip6stat.ip6s_forward_cachemiss++; |
|
RTFREE(ip6_forward_rt.ro_rt); |
|
ip6_forward_rt.ro_rt = 0; |
|
} |
|
|
|
bzero(&ip6_forward_rt.ro_dst, sizeof(struct sockaddr_in6)); |
|
dst6 = (struct sockaddr_in6 *)&ip6_forward_rt.ro_dst; |
|
dst6->sin6_len = sizeof(struct sockaddr_in6); |
|
dst6->sin6_family = AF_INET6; |
|
dst6->sin6_addr = ip6->ip6_dst; |
|
|
|
rtalloc((struct route *)&ip6_forward_rt); |
|
} |
|
|
|
#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
#define rt6_getkey(__rt) satocsin6(rt_getkey(__rt)) |
|
|
/* |
/* |
* Accept the packet if the forwarding interface to the destination |
* Accept the packet if the forwarding interface to the destination |
|
|
* 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 && |
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; |
/* |
/* |
|
|
*/ |
*/ |
#if defined(NFAITH) && 0 < NFAITH |
#if defined(NFAITH) && 0 < NFAITH |
if (ip6_keepfaith) { |
if (ip6_keepfaith) { |
if (ip6_forward_rt.ro_rt && ip6_forward_rt.ro_rt->rt_ifp && |
if (rt != NULL && rt->rt_ifp != NULL && |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_FAITH) { |
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; |
} |
} |
} |
} |
|
|
* working right. |
* working right. |
*/ |
*/ |
struct ifaddr *ifa; |
struct ifaddr *ifa; |
for (ifa = m->m_pkthdr.rcvif->if_addrlist.tqh_first; |
IFADDR_FOREACH(ifa, m->m_pkthdr.rcvif) { |
ifa; |
|
ifa = ifa->ifa_list.tqe_next) { |
|
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) |
|
|
* 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; |
} |
} |
|
|
* 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. |
*/ |
*/ |
|
} |
|
} |
} |
} |
} |
|
|
|
|
* 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, |
ICMP6_PARAMPROB_HEADER, |
ICMP6_PARAMPROB_HEADER, |
(caddr_t)&ip6->ip6_plen - (caddr_t)ip6); |
(char *)&ip6->ip6_plen - (char *)ip6); |
return; |
return; |
} |
} |
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)); |
|
|
* 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; |
} |
} |
|
|
* 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; |
} |
} |
|
|
*/ |
*/ |
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; |
} |
} |
|
|
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; |
|
frg_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; |
} |
} |
|
|
|
|
* 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; |
} |
} |
|
|
|
if (nxt == IPPROTO_ROUTING) { |
|
if (rh_present++) { |
|
in6_ifstat_inc(m->m_pkthdr.rcvif, |
|
ifs6_in_hdrerr); |
|
IP6_STATINC(IP6_STAT_BADOPTIONS); |
|
goto bad; |
|
} |
|
} else if (nxt == IPPROTO_FRAGMENT) { |
|
if (frg_present++) { |
|
in6_ifstat_inc(m->m_pkthdr.rcvif, |
|
ifs6_in_hdrerr); |
|
IP6_STATINC(IP6_STAT_BADOPTIONS); |
|
goto bad; |
|
} |
|
} |
|
|
#ifdef IPSEC |
#ifdef IPSEC |
/* |
if (ipsec_used) { |
* enforce IPsec policy checking if we are seeing last header. |
struct m_tag *mtag; |
* note that we do not visit this with protocols with pcb layer |
struct tdb_ident *tdbi; |
* code - like udp/tcp/raw ip. |
struct secpolicy *sp; |
*/ |
int s, error; |
if ((inet6sw[ip6_protox[nxt]].pr_flags & PR_LASTHDR) != 0 && |
|
ipsec6_in_reject(m, NULL)) { |
/* |
ipsec6stat.in_polvio++; |
* enforce IPsec policy checking if we are seeing last |
goto bad; |
* header. note that we do not visit this with |
|
* protocols with pcb layer code - like udp/tcp/raw ip. |
|
*/ |
|
if ((inet6sw[ip_protox[nxt]].pr_flags |
|
& PR_LASTHDR) != 0) { |
|
/* |
|
* Check if the packet has already had IPsec |
|
* processing done. If so, then just pass it |
|
* along. This tag gets set during AH, ESP, |
|
* etc. input handling, before the packet is |
|
* returned to the ip input queue for delivery. |
|
*/ |
|
mtag = m_tag_find(m, PACKET_TAG_IPSEC_IN_DONE, |
|
NULL); |
|
s = splsoftnet(); |
|
if (mtag != NULL) { |
|
tdbi = (struct tdb_ident *)(mtag + 1); |
|
sp = ipsec_getpolicy(tdbi, |
|
IPSEC_DIR_INBOUND); |
|
} else { |
|
sp = ipsec_getpolicybyaddr(m, |
|
IPSEC_DIR_INBOUND, IP_FORWARDING, |
|
&error); |
|
} |
|
if (sp != NULL) { |
|
/* |
|
* Check security policy against packet |
|
* attributes. |
|
*/ |
|
error = ipsec_in_reject(sp, m); |
|
KEY_FREESP(&sp); |
|
} else { |
|
/* XXX error stat??? */ |
|
error = EINVAL; |
|
DPRINTF(("ip6_input: no SP, packet" |
|
" discarded\n"));/*XXX*/ |
|
} |
|
splx(s); |
|
if (error) |
|
goto bad; |
|
} |
} |
} |
#endif |
#endif /* IPSEC */ |
|
|
nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
} |
} |
|
|
* 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; |
|
struct ip6aux *ip6a; |
|
|
mtag = ip6_addaux(m); |
mtag = ip6_addaux(m); |
if (mtag) |
if (mtag == NULL) |
((struct ip6aux *)(mtag + 1))->ip6a_dstia6 = ia6; |
return NULL; |
return mtag; /* NULL if failed to set */ |
|
|
ip6a = (struct ip6aux *)(mtag + 1); |
|
if (in6_setscope(&ip6a->ip6a_src, ia->ia_ifp, &ip6a->ip6a_scope_id)) { |
|
IP6_STATINC(IP6_STAT_BADSCOPE); |
|
return NULL; |
|
} |
|
|
|
ip6a->ip6a_src = ia->ia_addr.sin6_addr; |
|
ip6a->ip6a_flags = ia->ia6_flags; |
|
return mtag; |
} |
} |
|
|
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 797 ip6_getdstifaddr(m) |
|
Line 861 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 |
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 813 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
Line 876 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 846 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
Line 909 ip6_hopopts_input(plenp, rtalertp, mp, o |
|
* (RFC2460 p7), opthead is pointer into data content in m, and opthead to |
* (RFC2460 p7), opthead is pointer into data content in m, and opthead to |
* opthead + hbhlen is located in continuous memory region. |
* opthead + hbhlen is located in continuous memory region. |
*/ |
*/ |
int |
static 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 868 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 927 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 876 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 935 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 887 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 946 ip6_process_hopopts(m, opthead, hbhlen, |
|
return (-1); |
return (-1); |
} |
} |
optlen = IP6OPT_RTALERT_LEN; |
optlen = IP6OPT_RTALERT_LEN; |
bcopy((caddr_t)(opt + 2), (caddr_t)&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 911 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 970 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 922 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 981 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 935 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 994 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 947 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1006 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 958 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1017 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 984 ip6_process_hopopts(m, opthead, hbhlen, |
|
Line 1043 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 998 ip6_unknown_opt(optp, m, off) |
|
Line 1054 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 1029 ip6_unknown_opt(optp, m, off) |
|
Line 1085 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 1041 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1094 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); |
*mp = sbcreatecontrol((caddr_t) &tv, sizeof(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), |
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 1061 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1124 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; |
*mp = sbcreatecontrol((caddr_t) &pi6, |
*mp = sbcreatecontrol((void *) &pi6, |
sizeof(struct in6_pktinfo), |
sizeof(struct in6_pktinfo), |
IS2292(IPV6_2292PKTINFO, IPV6_PKTINFO), IPPROTO_IPV6); |
IS2292(IPV6_2292PKTINFO, IPV6_PKTINFO), IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
Line 1075 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1138 ip6_savecontrol(in6p, mp, ip6, m) |
|
if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
int hlim = ip6->ip6_hlim & 0xff; |
int hlim = ip6->ip6_hlim & 0xff; |
|
|
*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int), |
*mp = sbcreatecontrol((void *) &hlim, sizeof(int), |
IS2292(IPV6_2292HOPLIMIT, IPV6_HOPLIMIT), IPPROTO_IPV6); |
IS2292(IPV6_2292HOPLIMIT, IPV6_HOPLIMIT), IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
Line 1089 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1152 ip6_savecontrol(in6p, mp, ip6, m) |
|
flowinfo >>= 20; |
flowinfo >>= 20; |
|
|
tclass = flowinfo & 0xff; |
tclass = flowinfo & 0xff; |
*mp = sbcreatecontrol((caddr_t)&tclass, sizeof(tclass), |
*mp = sbcreatecontrol((void *)&tclass, sizeof(tclass), |
IPV6_TCLASS, IPPROTO_IPV6); |
IPV6_TCLASS, IPPROTO_IPV6); |
|
|
if (*mp) |
if (*mp) |
Line 1120 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1183 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 1137 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1200 ip6_savecontrol(in6p, mp, ip6, m) |
|
* be removed before returning in the RFC 2292. |
* be removed before returning in the RFC 2292. |
* Note: this constraint is removed in RFC3542. |
* Note: this constraint is removed in RFC3542. |
*/ |
*/ |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
*mp = sbcreatecontrol((void *)hbh, hbhlen, |
IS2292(IPV6_2292HOPOPTS, IPV6_HOPOPTS), |
IS2292(IPV6_2292HOPOPTS, IPV6_HOPOPTS), |
IPPROTO_IPV6); |
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
Line 1179 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1242 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 1189 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1252 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((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((void *)ip6e, elen, |
IS2292(IPV6_2292DSTOPTS, IPV6_DSTOPTS), |
IS2292(IPV6_2292DSTOPTS, IPV6_DSTOPTS), |
IPPROTO_IPV6); |
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
Line 1207 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1270 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((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((void *)ip6e, elen, |
IS2292(IPV6_2292RTHDR, IPV6_RTHDR), |
IS2292(IPV6_2292RTHDR, IPV6_RTHDR), |
IPPROTO_IPV6); |
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
Line 1248 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1311 ip6_savecontrol(in6p, mp, ip6, m) |
|
|
|
|
|
void |
void |
ip6_notify_pmtu(struct in6pcb *in6p, struct sockaddr_in6 *dst, uint32_t *mtu) |
ip6_notify_pmtu(struct in6pcb *in6p, const struct sockaddr_in6 *dst, |
|
uint32_t *mtu) |
{ |
{ |
struct socket *so; |
struct socket *so; |
struct mbuf *m_mtu; |
struct mbuf *m_mtu; |
Line 1270 ip6_notify_pmtu(struct in6pcb *in6p, str |
|
Line 1334 ip6_notify_pmtu(struct in6pcb *in6p, str |
|
if (sa6_recoverscope(&mtuctl.ip6m_addr)) |
if (sa6_recoverscope(&mtuctl.ip6m_addr)) |
return; |
return; |
|
|
if ((m_mtu = sbcreatecontrol((caddr_t)&mtuctl, sizeof(mtuctl), |
if ((m_mtu = sbcreatecontrol((void *)&mtuctl, sizeof(mtuctl), |
IPV6_PATHMTU, IPPROTO_IPV6)) == NULL) |
IPV6_PATHMTU, IPPROTO_IPV6)) == NULL) |
return; |
return; |
|
|
if (sbappendaddr(&so->so_rcv, (struct sockaddr *)dst, NULL, m_mtu) |
if (sbappendaddr(&so->so_rcv, (const struct sockaddr *)dst, NULL, m_mtu) |
== 0) { |
== 0) { |
m_freem(m_mtu); |
m_freem(m_mtu); |
/* XXX: should count statistics */ |
/* XXX: should count statistics */ |
Line 1289 ip6_notify_pmtu(struct in6pcb *in6p, str |
|
Line 1353 ip6_notify_pmtu(struct in6pcb *in6p, str |
|
* 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 1310 ip6_pullexthdr(m, off, nxt) |
|
Line 1371 ip6_pullexthdr(m, off, nxt) |
|
} |
} |
#endif |
#endif |
|
|
m_copydata(m, off, sizeof(ip6e), (caddr_t)&ip6e); |
m_copydata(m, off, sizeof(ip6e), (void *)&ip6e); |
if (nxt == IPPROTO_AH) |
if (nxt == IPPROTO_AH) |
elen = (ip6e.ip6e_len + 2) << 2; |
elen = (ip6e.ip6e_len + 2) << 2; |
else |
else |
Line 1333 ip6_pullexthdr(m, off, nxt) |
|
Line 1394 ip6_pullexthdr(m, off, nxt) |
|
return NULL; |
return NULL; |
} |
} |
|
|
m_copydata(m, off, elen, mtod(n, caddr_t)); |
m_copydata(m, off, elen, mtod(n, void *)); |
n->m_len = elen; |
n->m_len = elen; |
return n; |
return n; |
} |
} |
|
|
/* |
/* |
* Get pointer to the previous header followed by the header |
* Get offset to the previous header followed by the header |
* currently processed. |
* currently processed. |
* XXX: This function supposes that |
|
* M includes all headers, |
|
* the next header field and the header length field of each header |
|
* are valid, and |
|
* the sum of each header length equals to OFF. |
|
* Because of these assumptions, this function must be called very |
|
* carefully. Moreover, it will not be used in the near future when |
|
* we develop `neater' mechanism to process extension headers. |
|
*/ |
*/ |
u_int8_t * |
int |
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 *); |
|
|
if (off == sizeof(struct ip6_hdr)) |
if (off == sizeof(struct ip6_hdr)) { |
return (&ip6->ip6_nxt); |
return offsetof(struct ip6_hdr, ip6_nxt); |
else { |
} else if (off < sizeof(struct ip6_hdr)) { |
int len, nxt; |
panic("%s: off < sizeof(struct ip6_hdr)", __func__); |
struct ip6_ext *ip6e = NULL; |
} else { |
|
int len, nlen, nxt; |
|
struct ip6_ext ip6e; |
|
|
nxt = ip6->ip6_nxt; |
nxt = ip6->ip6_nxt; |
len = sizeof(struct ip6_hdr); |
len = sizeof(struct ip6_hdr); |
|
nlen = 0; |
while (len < off) { |
while (len < off) { |
ip6e = (struct ip6_ext *)(mtod(m, caddr_t) + len); |
m_copydata(m, len, sizeof(ip6e), &ip6e); |
|
|
switch (nxt) { |
switch (nxt) { |
case IPPROTO_FRAGMENT: |
case IPPROTO_FRAGMENT: |
len += sizeof(struct ip6_frag); |
nlen = sizeof(struct ip6_frag); |
break; |
break; |
case IPPROTO_AH: |
case IPPROTO_AH: |
len += (ip6e->ip6e_len + 2) << 2; |
nlen = (ip6e.ip6e_len + 2) << 2; |
break; |
break; |
default: |
default: |
len += (ip6e->ip6e_len + 1) << 3; |
nlen = (ip6e.ip6e_len + 1) << 3; |
break; |
break; |
} |
} |
nxt = ip6e->ip6e_nxt; |
len += nlen; |
|
nxt = ip6e.ip6e_nxt; |
} |
} |
if (ip6e) |
|
return (&ip6e->ip6e_nxt); |
return (len - nlen); |
else |
|
return NULL; |
|
} |
} |
} |
} |
|
|
Line 1392 ip6_get_prevhdr(m, off) |
|
Line 1445 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 1415 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1464 ip6_nexthdr(m, off, proto, nxtp) |
|
return -1; |
return -1; |
if (m->m_pkthdr.len < off + sizeof(ip6)) |
if (m->m_pkthdr.len < off + sizeof(ip6)) |
return -1; |
return -1; |
m_copydata(m, off, sizeof(ip6), (caddr_t)&ip6); |
m_copydata(m, off, sizeof(ip6), (void *)&ip6); |
if (nxtp) |
if (nxtp) |
*nxtp = ip6.ip6_nxt; |
*nxtp = ip6.ip6_nxt; |
off += sizeof(ip6); |
off += sizeof(ip6); |
Line 1428 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1477 ip6_nexthdr(m, off, proto, nxtp) |
|
*/ |
*/ |
if (m->m_pkthdr.len < off + sizeof(fh)) |
if (m->m_pkthdr.len < off + sizeof(fh)) |
return -1; |
return -1; |
m_copydata(m, off, sizeof(fh), (caddr_t)&fh); |
m_copydata(m, off, sizeof(fh), (void *)&fh); |
if ((fh.ip6f_offlg & IP6F_OFF_MASK) != 0) |
if ((fh.ip6f_offlg & IP6F_OFF_MASK) != 0) |
return -1; |
return -1; |
if (nxtp) |
if (nxtp) |
Line 1439 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1488 ip6_nexthdr(m, off, proto, nxtp) |
|
case IPPROTO_AH: |
case IPPROTO_AH: |
if (m->m_pkthdr.len < off + sizeof(ip6e)) |
if (m->m_pkthdr.len < off + sizeof(ip6e)) |
return -1; |
return -1; |
m_copydata(m, off, sizeof(ip6e), (caddr_t)&ip6e); |
m_copydata(m, off, sizeof(ip6e), (void *)&ip6e); |
if (nxtp) |
if (nxtp) |
*nxtp = ip6e.ip6e_nxt; |
*nxtp = ip6e.ip6e_nxt; |
off += (ip6e.ip6e_len + 2) << 2; |
off += (ip6e.ip6e_len + 2) << 2; |
Line 1452 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1501 ip6_nexthdr(m, off, proto, nxtp) |
|
case IPPROTO_DSTOPTS: |
case IPPROTO_DSTOPTS: |
if (m->m_pkthdr.len < off + sizeof(ip6e)) |
if (m->m_pkthdr.len < off + sizeof(ip6e)) |
return -1; |
return -1; |
m_copydata(m, off, sizeof(ip6e), (caddr_t)&ip6e); |
m_copydata(m, off, sizeof(ip6e), (void *)&ip6e); |
if (nxtp) |
if (nxtp) |
*nxtp = ip6e.ip6e_nxt; |
*nxtp = ip6e.ip6e_nxt; |
off += (ip6e.ip6e_len + 1) << 3; |
off += (ip6e.ip6e_len + 1) << 3; |
Line 1475 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1524 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 1503 ip6_lasthdr(m, off, proto, nxtp) |
|
Line 1548 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; |
|
|
|
|
m_tag_delete(m, mtag); |
m_tag_delete(m, mtag); |
} |
} |
|
|
|
#ifdef GATEWAY |
|
/* |
|
* sysctl helper routine for net.inet.ip6.maxflows. Since |
|
* we could reduce this value, call ip6flow_reap(); |
|
*/ |
|
static int |
|
sysctl_net_inet6_ip6_maxflows(SYSCTLFN_ARGS) |
|
{ |
|
int error; |
|
|
|
error = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
|
if (error || newp == NULL) |
|
return (error); |
|
|
|
mutex_enter(softnet_lock); |
|
KERNEL_LOCK(1, NULL); |
|
|
|
ip6flow_reap(0); |
|
|
|
KERNEL_UNLOCK_ONE(NULL); |
|
mutex_exit(softnet_lock); |
|
|
|
return (0); |
|
} |
|
|
|
static int |
|
sysctl_net_inet6_ip6_hashsize(SYSCTLFN_ARGS) |
|
{ |
|
int error, tmp; |
|
struct sysctlnode node; |
|
|
|
node = *rnode; |
|
tmp = ip6_hashsize; |
|
node.sysctl_data = &tmp; |
|
error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
|
if (error || newp == NULL) |
|
return (error); |
|
|
|
if ((tmp & (tmp - 1)) == 0 && tmp != 0) { |
|
/* |
|
* Can only fail due to malloc() |
|
*/ |
|
mutex_enter(softnet_lock); |
|
KERNEL_LOCK(1, NULL); |
|
|
|
error = ip6flow_invalidate_all(tmp); |
|
|
|
KERNEL_UNLOCK_ONE(NULL); |
|
mutex_exit(softnet_lock); |
|
} else { |
|
/* |
|
* EINVAL if not a power of 2 |
|
*/ |
|
error = EINVAL; |
|
} |
|
|
|
return error; |
|
} |
|
#endif /* GATEWAY */ |
|
|
/* |
/* |
* 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 1554 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
Line 1656 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 1564 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1674 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_NODE, "net", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "inet6", |
CTLTYPE_NODE, "inet6", |
SYSCTL_DESCR("PF_INET6 related settings"), |
SYSCTL_DESCR("PF_INET6 related settings"), |
NULL, 0, NULL, 0, |
NULL, 0, NULL, 0, |
Line 1660 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1765 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 1745 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1864 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
IPV6CTL_V6ONLY, CTL_EOL); |
IPV6CTL_V6ONLY, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "auto_linklocal", |
|
SYSCTL_DESCR("Default value of per-interface flag for " |
|
"adding an IPv6 link-local address to " |
|
"interfaces when attached"), |
|
NULL, 0, &ip6_auto_linklocal, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_AUTO_LINKLOCAL, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_INT, "anonportmin", |
CTLTYPE_INT, "anonportmin", |
SYSCTL_DESCR("Lowest ephemeral port number to assign"), |
SYSCTL_DESCR("Lowest ephemeral port number to assign"), |
sysctl_net_inet_ip_ports, 0, &ip6_anonportmin, 0, |
sysctl_net_inet_ip_ports, 0, &ip6_anonportmin, 0, |
Line 1784 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1912 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "prefer_tempaddr", |
|
SYSCTL_DESCR("Prefer temporary address as source " |
|
"address"), |
|
NULL, 0, &ip6_prefer_tempaddr, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_INT, "temppltime", |
CTLTYPE_INT, "temppltime", |
SYSCTL_DESCR("preferred lifetime of a temporary address"), |
SYSCTL_DESCR("preferred lifetime of a temporary address"), |
NULL, 0, &ip6_temp_preferred_lifetime, 0, |
NULL, 0, &ip6_temp_preferred_lifetime, 0, |
Line 1807 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1943 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 1824 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1960 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
NULL, 0, &ip6_mcast_pmtu, 0, |
NULL, 0, &ip6_mcast_pmtu, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
|
#ifdef GATEWAY |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "maxflows", |
|
SYSCTL_DESCR("Number of flows for fast forwarding (IPv6)"), |
|
sysctl_net_inet6_ip6_maxflows, 0, &ip6_maxflows, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "hashsize", |
|
SYSCTL_DESCR("Size of hash table for fast forwarding (IPv6)"), |
|
sysctl_net_inet6_ip6_hashsize, 0, &ip6_hashsize, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
#endif |
|
/* anonportalgo RFC6056 subtree */ |
|
const struct sysctlnode *portalgo_node; |
|
sysctl_createv(clog, 0, NULL, &portalgo_node, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "anonportalgo", |
|
SYSCTL_DESCR("Anonymous port algorithm selection (RFC 6056)"), |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, &portalgo_node, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_STRING, "available", |
|
SYSCTL_DESCR("available algorithms"), |
|
sysctl_portalgo_available, 0, NULL, PORTALGO_MAXLEN, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, &portalgo_node, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_STRING, "selected", |
|
SYSCTL_DESCR("selected algorithm"), |
|
sysctl_portalgo_selected6, 0, NULL, PORTALGO_MAXLEN, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, &portalgo_node, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_STRUCT, "reserve", |
|
SYSCTL_DESCR("bitmap of reserved ports"), |
|
sysctl_portalgo_reserve6, 0, NULL, 0, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "neighborgcthresh", |
|
SYSCTL_DESCR("Maximum number of entries in neighbor" |
|
" cache"), |
|
NULL, 1, &ip6_neighborgcthresh, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "maxifprefixes", |
|
SYSCTL_DESCR("Maximum number of prefixes created by" |
|
" route advertisement per interface"), |
|
NULL, 1, &ip6_maxifprefixes, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "maxifdefrouters", |
|
SYSCTL_DESCR("Maximum number of default routers created" |
|
" by route advertisement per interface"), |
|
NULL, 1, &ip6_maxifdefrouters, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "maxdynroutes", |
|
SYSCTL_DESCR("Maximum number of routes created via" |
|
" redirect"), |
|
NULL, 1, &ip6_maxdynroutes, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
} |
|
|
|
void |
|
ip6_statinc(u_int stat) |
|
{ |
|
|
|
KASSERT(stat < IP6_NSTATS); |
|
IP6_STATINC(stat); |
} |
} |