version 1.64.2.4, 2004/11/29 07:25:04 |
version 1.82.6.2, 2006/05/24 10:59:09 |
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__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_inet.h" |
#include "opt_inet.h" |
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#include "opt_inet6.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_pfil_hooks.h" |
#include "opt_pfil_hooks.h" |
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Line 103 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 104 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/ip6_var.h> |
#include <netinet6/ip6_var.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/in6_ifattach.h> |
#include <netinet6/in6_ifattach.h> |
#include <netinet6/nd6.h> |
#include <netinet6/nd6.h> |
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Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 114 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/ip6protosw.h> |
#include <netinet6/ip6protosw.h> |
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/* we need it for NLOOP. */ |
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#include "loop.h" |
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#include "faith.h" |
#include "faith.h" |
#include "gif.h" |
#include "gif.h" |
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Line 130 static int ip6qmaxlen = IFQ_MAXLEN; |
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Line 130 static int ip6qmaxlen = IFQ_MAXLEN; |
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struct in6_ifaddr *in6_ifaddr; |
struct in6_ifaddr *in6_ifaddr; |
struct ifqueue ip6intrq; |
struct ifqueue ip6intrq; |
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extern struct ifnet loif[NLOOP]; |
extern struct callout 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 */ |
Line 142 struct pfil_head inet6_pfil_hook; |
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Line 143 struct pfil_head inet6_pfil_hook; |
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struct ip6stat ip6stat; |
struct ip6stat ip6stat; |
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static void ip6_init2 __P((void *)); |
static void ip6_init2 __P((void *)); |
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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 int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *)); |
static struct mbuf *ip6_pullexthdr __P((struct mbuf *, size_t, int)); |
static struct mbuf *ip6_pullexthdr __P((struct mbuf *, size_t, int)); |
Line 153 static struct mbuf *ip6_pullexthdr __P(( |
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Line 155 static struct mbuf *ip6_pullexthdr __P(( |
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void |
void |
ip6_init() |
ip6_init() |
{ |
{ |
struct ip6protosw *pr; |
const struct ip6protosw *pr; |
int i; |
int i; |
|
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pr = (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"); |
for (i = 0; i < IPPROTO_MAX; i++) |
for (i = 0; i < IPPROTO_MAX; i++) |
ip6_protox[i] = pr - inet6sw; |
ip6_protox[i] = pr - inet6sw; |
for (pr = (struct ip6protosw *)inet6domain.dom_protosw; |
for (pr = (const struct ip6protosw *)inet6domain.dom_protosw; |
pr < (struct ip6protosw *)inet6domain.dom_protoswNPROTOSW; pr++) |
pr < (const struct ip6protosw *)inet6domain.dom_protoswNPROTOSW; pr++) |
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; |
ip6intrq.ifq_maxlen = ip6qmaxlen; |
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scope6_init(); |
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addrsel_policy_init(); |
nd6_init(); |
nd6_init(); |
frag6_init(); |
frag6_init(); |
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ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; |
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ip6_init2((void *)0); |
ip6_init2((void *)0); |
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Line 191 ip6_init2(dummy) |
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Line 196 ip6_init2(dummy) |
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/* nd6_timer_init */ |
/* nd6_timer_init */ |
callout_init(&nd6_timer_ch); |
callout_init(&nd6_timer_ch); |
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 */ |
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callout_init(&in6_tmpaddrtimer_ch); |
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callout_reset(&in6_tmpaddrtimer_ch, |
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(ip6_temp_preferred_lifetime - ip6_desync_factor - |
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ip6_temp_regen_advance) * hz, |
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in6_tmpaddrtimer, NULL); |
} |
} |
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/* |
/* |
|
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splx(s); |
splx(s); |
if (m == 0) |
if (m == 0) |
return; |
return; |
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/* drop the packet if IPv6 operation is disabled on the IF */ |
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if ((ND_IFINFO(m->m_pkthdr.rcvif)->flags & ND6_IFF_IFDISABLED)) { |
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m_freem(m); |
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return; |
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} |
ip6_input(m); |
ip6_input(m); |
} |
} |
} |
} |
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#endif |
#endif |
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/* |
/* |
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* make sure we don't have onion peering information into m_tag. |
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*/ |
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ip6_delaux(m); |
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/* |
* mbuf statistics |
* mbuf statistics |
*/ |
*/ |
if (m->m_flags & M_EXT) { |
if (m->m_flags & M_EXT) { |
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#define M2MMAX (sizeof(ip6stat.ip6s_m2m)/sizeof(ip6stat.ip6s_m2m[0])) |
#define M2MMAX (sizeof(ip6stat.ip6s_m2m)/sizeof(ip6stat.ip6s_m2m[0])) |
if (m->m_next) { |
if (m->m_next) { |
if (m->m_flags & M_LOOP) { |
if (m->m_flags & M_LOOP) { |
ip6stat.ip6s_m2m[loif[0].if_index]++; /* XXX */ |
ip6stat.ip6s_m2m[lo0ifp->if_index]++; /* XXX */ |
} 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]++; |
ip6stat.ip6s_m2m[m->m_pkthdr.rcvif->if_index]++; |
else |
else |
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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 |
* mbuf with space for link headers, in the event we forward |
* mbuf with space for link headers, in the event we forward |
* 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, caddr_t)) == 0) { |
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} |
} |
#endif |
#endif |
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if (IN6_IS_ADDR_LOOPBACK(&ip6->ip6_src) || |
/* |
IN6_IS_ADDR_LOOPBACK(&ip6->ip6_dst)) { |
* Disambiguate address scope zones (if there is ambiguity). |
if (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) { |
* We first make sure that the original source or destination address |
ours = 1; |
* is not in our internal form for scoped addresses. Such addresses |
deliverifp = m->m_pkthdr.rcvif; |
* are not necessarily invalid spec-wise, but we cannot accept them due |
goto hbhcheck; |
* to the usage conflict. |
} else { |
* in6_setscope() then also checks and rejects the cases where src or |
ip6stat.ip6s_badscope++; |
* dst are the loopback address and the receiving interface |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_addrerr); |
* is not loopback. |
goto bad; |
*/ |
} |
if (in6_clearscope(&ip6->ip6_src) || in6_clearscope(&ip6->ip6_dst)) { |
} |
ip6stat.ip6s_badscope++; /* XXX */ |
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goto bad; |
/* drop packets if interface ID portion is already filled */ |
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if ((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) { |
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if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_src) && |
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ip6->ip6_src.s6_addr16[1]) { |
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ip6stat.ip6s_badscope++; |
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goto bad; |
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} |
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if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_dst) && |
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ip6->ip6_dst.s6_addr16[1]) { |
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ip6stat.ip6s_badscope++; |
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goto bad; |
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} |
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} |
} |
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if (in6_setscope(&ip6->ip6_src, m->m_pkthdr.rcvif, NULL) || |
if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_src)) |
in6_setscope(&ip6->ip6_dst, m->m_pkthdr.rcvif, NULL)) { |
ip6->ip6_src.s6_addr16[1] |
ip6stat.ip6s_badscope++; |
= htons(m->m_pkthdr.rcvif->if_index); |
goto bad; |
if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_dst)) |
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ip6->ip6_dst.s6_addr16[1] |
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= htons(m->m_pkthdr.rcvif->if_index); |
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/* |
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* We use rt->rt_ifp to determine if the address is ours or not. |
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* If rt_ifp is lo0, the address is ours. |
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* The problem here is, rt->rt_ifp for fe80::%lo0/64 is set to lo0, |
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* so any address under fe80::%lo0/64 will be mistakenly considered |
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* local. The special case is supplied to handle the case properly |
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* by actually looking at interface addresses |
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* (using in6ifa_ifpwithaddr). |
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*/ |
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if ((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) != 0 && |
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IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_dst)) { |
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if (!in6ifa_ifpwithaddr(m->m_pkthdr.rcvif, &ip6->ip6_dst)) { |
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icmp6_error(m, ICMP6_DST_UNREACH, |
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ICMP6_DST_UNREACH_ADDR, 0); |
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/* m is already freed */ |
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return; |
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} |
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ours = 1; |
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deliverifp = m->m_pkthdr.rcvif; |
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goto hbhcheck; |
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} |
} |
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/* |
/* |
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hbhcheck: |
hbhcheck: |
/* |
/* |
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* record address information into m_tag, if we don't have one yet. |
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* note that we are unable to record it, if the address is not listed |
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* as our interface address (e.g. multicast addresses, addresses |
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* within FAITH prefixes and such). |
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*/ |
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if (deliverifp && !ip6_getdstifaddr(m)) { |
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struct in6_ifaddr *ia6; |
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ia6 = in6_ifawithifp(deliverifp, &ip6->ip6_dst); |
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if (ia6) { |
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if (!ip6_setdstifaddr(m, ia6)) { |
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/* |
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* XXX maybe we should drop the packet here, |
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* as we could not provide enough information |
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* to the upper layers. |
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*/ |
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} |
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} |
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} |
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/* |
* Process Hop-by-Hop options header if it's contained. |
* Process Hop-by-Hop options header if it's contained. |
* m may be modified in ip6_hopopts_input(). |
* m may be modified in ip6_hopopts_input(). |
* If a JumboPayload option is included, plen will also be modified. |
* If a JumboPayload option is included, plen will also be modified. |
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if (ip6->ip6_plen == 0 && plen == 0) { |
if (ip6->ip6_plen == 0 && plen == 0) { |
/* |
/* |
* Note that if a valid jumbo payload option is |
* Note that if a valid jumbo payload option is |
* contained, ip6_hoptops_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++; |
ip6stat.ip6s_badoptions++; |
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} |
} |
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/* |
/* |
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* set/grab in6_ifaddr correspond to IPv6 destination address. |
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*/ |
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static struct m_tag * |
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ip6_setdstifaddr(m, ia6) |
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struct mbuf *m; |
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struct in6_ifaddr *ia6; |
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{ |
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struct m_tag *mtag; |
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mtag = ip6_addaux(m); |
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if (mtag) |
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((struct ip6aux *)(mtag + 1))->ip6a_dstia6 = ia6; |
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return mtag; /* NULL if failed to set */ |
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} |
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struct in6_ifaddr * |
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ip6_getdstifaddr(m) |
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struct mbuf *m; |
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{ |
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struct m_tag *mtag; |
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mtag = ip6_findaux(m); |
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if (mtag) |
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return ((struct ip6aux *)(mtag + 1))->ip6a_dstia6; |
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else |
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return NULL; |
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} |
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/* |
* 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. |
*/ |
*/ |
Line 996 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1031 ip6_savecontrol(in6p, mp, ip6, m) |
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struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
struct mbuf *m; |
struct mbuf *m; |
{ |
{ |
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#ifdef RFC2292 |
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#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
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#else |
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#define IS2292(x, y) (y) |
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#endif |
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#ifdef SO_TIMESTAMP |
#ifdef SO_TIMESTAMP |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
Line 1008 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1048 ip6_savecontrol(in6p, mp, ip6, m) |
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mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
#endif |
#endif |
if (in6p->in6p_flags & IN6P_RECVDSTADDR) { |
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*mp = sbcreatecontrol((caddr_t) &ip6->ip6_dst, |
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sizeof(struct in6_addr), IPV6_RECVDSTADDR, IPPROTO_IPV6); |
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if (*mp) |
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mp = &(*mp)->m_next; |
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} |
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#ifdef noyet |
/* some OSes call this logic with IPv4 packet, for SO_TIMESTAMP */ |
/* options were tossed above */ |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) |
if (in6p->in6p_flags & IN6P_RECVOPTS) |
return; |
/* broken */ |
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/* ip6_srcroute doesn't do what we want here, need to fix */ |
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if (in6p->in6p_flags & IPV6P_RECVRETOPTS) |
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/* broken */ |
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#endif |
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/* RFC 2292 sec. 5 */ |
/* RFC 2292 sec. 5 */ |
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
struct in6_pktinfo pi6; |
struct in6_pktinfo pi6; |
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bcopy(&ip6->ip6_dst, &pi6.ipi6_addr, sizeof(struct in6_addr)); |
bcopy(&ip6->ip6_dst, &pi6.ipi6_addr, sizeof(struct in6_addr)); |
if (IN6_IS_SCOPE_LINKLOCAL(&pi6.ipi6_addr)) |
in6_clearscope(&pi6.ipi6_addr); /* XXX */ |
pi6.ipi6_addr.s6_addr16[1] = 0; |
pi6.ipi6_ifindex = m->m_pkthdr.rcvif ? |
pi6.ipi6_ifindex = (m && m->m_pkthdr.rcvif) |
m->m_pkthdr.rcvif->if_index : 0; |
? m->m_pkthdr.rcvif->if_index |
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: 0; |
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*mp = sbcreatecontrol((caddr_t) &pi6, |
*mp = sbcreatecontrol((caddr_t) &pi6, |
sizeof(struct in6_pktinfo), IPV6_PKTINFO, IPPROTO_IPV6); |
sizeof(struct in6_pktinfo), |
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IS2292(IPV6_2292PKTINFO, IPV6_PKTINFO), IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
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if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
int hlim = ip6->ip6_hlim & 0xff; |
int hlim = ip6->ip6_hlim & 0xff; |
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*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int), |
*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int), |
IPV6_HOPLIMIT, IPPROTO_IPV6); |
IS2292(IPV6_2292HOPLIMIT, IPV6_HOPLIMIT), IPPROTO_IPV6); |
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if (*mp) |
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mp = &(*mp)->m_next; |
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} |
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if ((in6p->in6p_flags & IN6P_TCLASS) != 0) { |
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u_int32_t flowinfo; |
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int tclass; |
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flowinfo = (u_int32_t)ntohl(ip6->ip6_flow & IPV6_FLOWINFO_MASK); |
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flowinfo >>= 20; |
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tclass = flowinfo & 0xff; |
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*mp = sbcreatecontrol((caddr_t)&tclass, sizeof(tclass), |
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IPV6_TCLASS, IPPROTO_IPV6); |
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if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
/* IN6P_NEXTHOP - for outgoing packet only */ |
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/* |
/* |
* IPV6_HOPOPTS socket option. Recall that we required super-user |
* IPV6_HOPOPTS socket option. Recall that we required super-user |
* privilege for the option (see ip6_ctloutput), but it might be too |
* privilege for the option (see ip6_ctloutput), but it might be too |
* strict, since there might be some hop-by-hop options which can be |
* strict, since there might be some hop-by-hop options which can be |
* returned to normal user. |
* returned to normal user. |
* See also RFC 2292 section 6. |
* See also RFC3542 section 8 (or RFC2292 section 6). |
*/ |
*/ |
if ((in6p->in6p_flags & IN6P_HOPOPTS) != 0) { |
if ((in6p->in6p_flags & IN6P_HOPOPTS) != 0) { |
/* |
/* |
Line 1062 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1107 ip6_savecontrol(in6p, mp, ip6, m) |
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* just after the IPv6 header, which fact is assured through |
* just after the IPv6 header, which fact is assured through |
* the IPv6 input processing. |
* the IPv6 input processing. |
*/ |
*/ |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *xip6 = mtod(m, struct ip6_hdr *); |
if (ip6->ip6_nxt == IPPROTO_HOPOPTS) { |
if (xip6->ip6_nxt == IPPROTO_HOPOPTS) { |
struct ip6_hbh *hbh; |
struct ip6_hbh *hbh; |
int hbhlen; |
int hbhlen; |
struct mbuf *ext; |
struct mbuf *ext; |
|
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ext = ip6_pullexthdr(m, sizeof(struct ip6_hdr), |
ext = ip6_pullexthdr(m, sizeof(struct ip6_hdr), |
ip6->ip6_nxt); |
xip6->ip6_nxt); |
if (ext == NULL) { |
if (ext == NULL) { |
ip6stat.ip6s_tooshort++; |
ip6stat.ip6s_tooshort++; |
return; |
return; |
Line 1086 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1131 ip6_savecontrol(in6p, mp, ip6, m) |
|
* XXX: We copy whole the header even if a jumbo |
* XXX: We copy whole the header even if a jumbo |
* payload option is included, which option is to |
* payload option is included, which option is to |
* be removed before returning in the RFC 2292. |
* be removed before returning in the RFC 2292. |
* But it's too painful operation... |
* Note: this constraint is removed in RFC3542. |
*/ |
*/ |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
IPV6_HOPOPTS, IPPROTO_IPV6); |
IS2292(IPV6_2292HOPOPTS, IPV6_HOPOPTS), |
|
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
m_freem(ext); |
m_freem(ext); |
Line 1098 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1144 ip6_savecontrol(in6p, mp, ip6, m) |
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|
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/* IPV6_DSTOPTS and IPV6_RTHDR socket options */ |
/* IPV6_DSTOPTS and IPV6_RTHDR socket options */ |
if (in6p->in6p_flags & (IN6P_DSTOPTS | IN6P_RTHDR)) { |
if (in6p->in6p_flags & (IN6P_DSTOPTS | IN6P_RTHDR)) { |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *xip6 = mtod(m, struct ip6_hdr *); |
int nxt = ip6->ip6_nxt, off = sizeof(struct ip6_hdr); |
int nxt = xip6->ip6_nxt, off = sizeof(struct ip6_hdr); |
|
|
/* |
/* |
* Search for destination options headers or routing |
* Search for destination options headers or routing |
Line 1108 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1154 ip6_savecontrol(in6p, mp, ip6, m) |
|
* Note that the order of the headers remains in |
* Note that the order of the headers remains in |
* the chain of ancillary data. |
* the chain of ancillary data. |
*/ |
*/ |
while (1) { /* is explicit loop prevention necessary? */ |
for (;;) { /* is explicit loop prevention necessary? */ |
struct ip6_ext *ip6e = NULL; |
struct ip6_ext *ip6e = NULL; |
int elen; |
int elen; |
struct mbuf *ext = NULL; |
struct mbuf *ext = NULL; |
Line 1150 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1196 ip6_savecontrol(in6p, mp, ip6, m) |
|
break; |
break; |
|
|
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
IPV6_DSTOPTS, IPPROTO_IPV6); |
IS2292(IPV6_2292DSTOPTS, IPV6_DSTOPTS), |
|
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
break; |
break; |
Line 1160 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1207 ip6_savecontrol(in6p, mp, ip6, m) |
|
break; |
break; |
|
|
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
IPV6_RTHDR, IPPROTO_IPV6); |
IS2292(IPV6_2292RTHDR, IPV6_RTHDR), |
|
IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
break; |
break; |
Line 1192 ip6_savecontrol(in6p, mp, ip6, m) |
|
Line 1240 ip6_savecontrol(in6p, mp, ip6, m) |
|
; |
; |
} |
} |
} |
} |
|
#undef IS2292 |
|
|
|
|
|
void |
|
ip6_notify_pmtu(struct in6pcb *in6p, struct sockaddr_in6 *dst, uint32_t *mtu) |
|
{ |
|
struct socket *so; |
|
struct mbuf *m_mtu; |
|
struct ip6_mtuinfo mtuctl; |
|
|
|
so = in6p->in6p_socket; |
|
|
|
if (mtu == NULL) |
|
return; |
|
|
|
#ifdef DIAGNOSTIC |
|
if (so == NULL) /* I believe this is impossible */ |
|
panic("ip6_notify_pmtu: socket is NULL"); |
|
#endif |
|
|
|
memset(&mtuctl, 0, sizeof(mtuctl)); /* zero-clear for safety */ |
|
mtuctl.ip6m_mtu = *mtu; |
|
mtuctl.ip6m_addr = *dst; |
|
if (sa6_recoverscope(&mtuctl.ip6m_addr)) |
|
return; |
|
|
|
if ((m_mtu = sbcreatecontrol((caddr_t)&mtuctl, sizeof(mtuctl), |
|
IPV6_PATHMTU, IPPROTO_IPV6)) == NULL) |
|
return; |
|
|
|
if (sbappendaddr(&so->so_rcv, (struct sockaddr *)dst, NULL, m_mtu) |
|
== 0) { |
|
m_freem(m_mtu); |
|
/* XXX: should count statistics */ |
|
} else |
|
sorwakeup(so); |
|
|
|
return; |
|
} |
|
|
/* |
/* |
* pull single extension header from mbuf chain. returns single mbuf that |
* pull single extension header from mbuf chain. returns single mbuf that |
Line 1319 ip6_nexthdr(m, off, proto, nxtp) |
|
Line 1406 ip6_nexthdr(m, off, proto, nxtp) |
|
|
|
switch (proto) { |
switch (proto) { |
case IPPROTO_IPV6: |
case IPPROTO_IPV6: |
|
/* do not chase beyond intermediate IPv6 headers */ |
|
if (off != 0) |
|
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), (caddr_t)&ip6); |
Line 1394 ip6_lasthdr(m, off, proto, nxtp) |
|
Line 1484 ip6_lasthdr(m, off, proto, nxtp) |
|
nxt = -1; |
nxt = -1; |
nxtp = &nxt; |
nxtp = &nxt; |
} |
} |
while (1) { |
for (;;) { |
newoff = ip6_nexthdr(m, off, proto, nxtp); |
newoff = ip6_nexthdr(m, off, proto, nxtp); |
if (newoff < 0) |
if (newoff < 0) |
return off; |
return off; |
Line 1408 ip6_lasthdr(m, off, proto, nxtp) |
|
Line 1498 ip6_lasthdr(m, off, proto, nxtp) |
|
} |
} |
} |
} |
|
|
|
struct m_tag * |
|
ip6_addaux(m) |
|
struct mbuf *m; |
|
{ |
|
struct m_tag *mtag; |
|
|
|
mtag = m_tag_find(m, PACKET_TAG_INET6, NULL); |
|
if (!mtag) { |
|
mtag = m_tag_get(PACKET_TAG_INET6, sizeof(struct ip6aux), |
|
M_NOWAIT); |
|
if (mtag) { |
|
m_tag_prepend(m, mtag); |
|
bzero(mtag + 1, sizeof(struct ip6aux)); |
|
} |
|
} |
|
return mtag; |
|
} |
|
|
|
struct m_tag * |
|
ip6_findaux(m) |
|
struct mbuf *m; |
|
{ |
|
struct m_tag *mtag; |
|
|
|
mtag = m_tag_find(m, PACKET_TAG_INET6, NULL); |
|
return mtag; |
|
} |
|
|
|
void |
|
ip6_delaux(m) |
|
struct mbuf *m; |
|
{ |
|
struct m_tag *mtag; |
|
|
|
mtag = m_tag_find(m, PACKET_TAG_INET6, NULL); |
|
if (mtag) |
|
m_tag_delete(m, mtag); |
|
} |
|
|
/* |
/* |
* System control for IP6 |
* System control for IP6 |
*/ |
*/ |
Line 1423 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
Line 1552 u_char inet6ctlerrmap[PRC_NCMDS] = { |
|
|
|
SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, "sysctl net.inet6.ip6 subtree setup") |
SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, "sysctl net.inet6.ip6 subtree setup") |
{ |
{ |
|
#ifdef RFC2292 |
|
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
|
#else |
|
#define IS2292(x, y) (y) |
|
#endif |
|
|
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
Line 1480 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1614 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
IPV6CTL_FORWSRCRT, CTL_EOL); |
IPV6CTL_FORWSRCRT, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_STRUCT, "stats", NULL, |
|
NULL, 0, &?, sizeof(?), |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_STATS, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_STRUCT, "mrtstats", NULL, |
CTLTYPE_STRUCT, "mrtstats", NULL, |
NULL, 0, &?, sizeof(?), |
NULL, 0, &?, sizeof(?), |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
Line 1583 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1711 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_STRING, "kame_version", |
CTLTYPE_STRING, "kame_version", |
SYSCTL_DESCR("KAME Version"), |
SYSCTL_DESCR("KAME Version"), |
NULL, 0, __KAME_VERSION, 0, |
NULL, 0, __UNCONST(__KAME_VERSION), 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
IPV6CTL_KAME_VERSION, CTL_EOL); |
IPV6CTL_KAME_VERSION, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
Line 1645 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
Line 1773 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
#endif /* IPNOPRIVPORTS */ |
#endif /* IPNOPRIVPORTS */ |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "use_tempaddr", |
|
SYSCTL_DESCR("Use temporary address"), |
|
NULL, 0, &ip6_use_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", |
|
SYSCTL_DESCR("preferred lifetime of a temporary address"), |
|
NULL, 0, &ip6_temp_preferred_lifetime, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "tempvltime", |
|
SYSCTL_DESCR("valid lifetime of a temporary address"), |
|
NULL, 0, &ip6_temp_valid_lifetime, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_INT, "maxfrags", |
CTLTYPE_INT, "maxfrags", |
SYSCTL_DESCR("Maximum fragments in reassembly queue"), |
SYSCTL_DESCR("Maximum fragments in reassembly queue"), |
NULL, 0, &ip6_maxfrags, 0, |
NULL, 0, &ip6_maxfrags, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
IPV6CTL_MAXFRAGS, CTL_EOL); |
IPV6CTL_MAXFRAGS, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_STRUCT, "stats", |
|
SYSCTL_DESCR("IPv6 statistics"), |
|
NULL, 0, &ip6stat, sizeof(ip6stat), |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_STATS, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "use_defaultzone", |
|
SYSCTL_DESCR("Whether to use the default scope zones"), |
|
NULL, 0, &ip6_use_defzone, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
IPV6CTL_USE_DEFAULTZONE, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "mcast_pmtu", |
|
SYSCTL_DESCR("Enable pMTU discovery for multicast packet"), |
|
NULL, 0, &ip6_mcast_pmtu, 0, |
|
CTL_NET, PF_INET6, IPPROTO_IPV6, |
|
CTL_CREATE, CTL_EOL); |
} |
} |