version 1.164.2.4, 2017/03/20 06:57:51 |
version 1.165, 2016/08/01 03:15:31 |
Line 70 __KERNEL_RCSID(0, "$NetBSD$"); |
|
Line 70 __KERNEL_RCSID(0, "$NetBSD$"); |
|
#include "opt_inet6.h" |
#include "opt_inet6.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_compat_netbsd.h" |
#include "opt_compat_netbsd.h" |
#include "opt_net_mpsafe.h" |
|
#endif |
#endif |
|
|
#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
|
#include <sys/malloc.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/domain.h> |
#include <sys/domain.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
Line 152 static int ip6_process_hopopts(struct mb |
|
Line 152 static int ip6_process_hopopts(struct mb |
|
static struct mbuf *ip6_pullexthdr(struct mbuf *, size_t, int); |
static struct mbuf *ip6_pullexthdr(struct mbuf *, size_t, int); |
static void sysctl_net_inet6_ip6_setup(struct sysctllog **); |
static void sysctl_net_inet6_ip6_setup(struct sysctllog **); |
|
|
#ifdef NET_MPSAFE |
|
#define SOFTNET_LOCK() mutex_enter(softnet_lock) |
|
#define SOFTNET_UNLOCK() mutex_exit(softnet_lock) |
|
#else |
|
#define SOFTNET_LOCK() KASSERT(mutex_owned(softnet_lock)) |
|
#define SOFTNET_UNLOCK() KASSERT(mutex_owned(softnet_lock)) |
|
#endif |
|
|
|
/* |
/* |
* IP6 initialization: fill in IP6 protocol switch table. |
* IP6 initialization: fill in IP6 protocol switch table. |
* All protocols not implemented in kernel go to raw IP6 protocol handler. |
* All protocols not implemented in kernel go to raw IP6 protocol handler. |
Line 224 ip6intr(void *arg __unused) |
|
Line 216 ip6intr(void *arg __unused) |
|
{ |
{ |
struct mbuf *m; |
struct mbuf *m; |
|
|
#ifndef NET_MPSAFE |
|
mutex_enter(softnet_lock); |
mutex_enter(softnet_lock); |
#endif |
|
while ((m = pktq_dequeue(ip6_pktq)) != NULL) { |
while ((m = pktq_dequeue(ip6_pktq)) != NULL) { |
struct psref psref; |
struct psref psref; |
struct ifnet *rcvif = m_get_rcvif_psref(m, &psref); |
struct ifnet *rcvif = m_get_rcvif_psref(m, &psref); |
Line 246 ip6intr(void *arg __unused) |
|
Line 236 ip6intr(void *arg __unused) |
|
ip6_input(m, rcvif); |
ip6_input(m, rcvif); |
m_put_rcvif_psref(rcvif, &psref); |
m_put_rcvif_psref(rcvif, &psref); |
} |
} |
#ifndef NET_MPSAFE |
|
mutex_exit(softnet_lock); |
mutex_exit(softnet_lock); |
#endif |
|
} |
} |
|
|
extern struct route ip6_forward_rt; |
extern struct route ip6_forward_rt; |
Line 263 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 251 ip6_input(struct mbuf *m, struct ifnet * |
|
int nxt, ours = 0, rh_present = 0; |
int nxt, ours = 0, rh_present = 0; |
struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
int srcrt = 0; |
int srcrt = 0; |
struct rtentry *rt = NULL; |
const struct rtentry *rt; |
union { |
union { |
struct sockaddr dst; |
struct sockaddr dst; |
struct sockaddr_in6 dst6; |
struct sockaddr_in6 dst6; |
Line 366 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 354 ip6_input(struct mbuf *m, struct ifnet * |
|
IP6_STATINC(IP6_STAT_NXTHIST + ip6->ip6_nxt); |
IP6_STATINC(IP6_STAT_NXTHIST + ip6->ip6_nxt); |
|
|
#ifdef ALTQ |
#ifdef ALTQ |
if (altq_input != NULL) { |
if (altq_input != NULL && (*altq_input)(m, AF_INET6) == 0) { |
SOFTNET_LOCK(); |
/* packet is dropped by traffic conditioner */ |
if ((*altq_input)(m, AF_INET6) == 0) { |
return; |
SOFTNET_UNLOCK(); |
|
/* packet is dropped by traffic conditioner */ |
|
return; |
|
} |
|
SOFTNET_UNLOCK(); |
|
} |
} |
#endif |
#endif |
|
|
Line 447 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 430 ip6_input(struct mbuf *m, struct ifnet * |
|
goto bad; |
goto bad; |
} |
} |
|
|
ro = percpu_getref(ip6_forward_rt_percpu); |
|
/* |
/* |
* Multicast check |
* Multicast check |
*/ |
*/ |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { |
if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { |
bool ingroup; |
struct in6_multi *in6m = 0; |
|
|
in6_ifstat_inc(rcvif, ifs6_in_mcast); |
in6_ifstat_inc(rcvif, ifs6_in_mcast); |
/* |
/* |
* See if we belong to the destination multicast group on the |
* See if we belong to the destination multicast group on the |
* arrival interface. |
* arrival interface. |
*/ |
*/ |
ingroup = in6_multi_group(&ip6->ip6_dst, rcvif); |
IN6_LOOKUP_MULTI(ip6->ip6_dst, rcvif, in6m); |
if (ingroup) |
if (in6m) |
ours = 1; |
ours = 1; |
else if (!ip6_mrouter) { |
else if (!ip6_mrouter) { |
uint64_t *ip6s = IP6_STAT_GETREF(); |
uint64_t *ip6s = IP6_STAT_GETREF(); |
Line 468 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 450 ip6_input(struct mbuf *m, struct ifnet * |
|
ip6s[IP6_STAT_CANTFORWARD]++; |
ip6s[IP6_STAT_CANTFORWARD]++; |
IP6_STAT_PUTREF(); |
IP6_STAT_PUTREF(); |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
goto bad_unref; |
goto bad; |
} |
} |
deliverifp = rcvif; |
deliverifp = rcvif; |
goto hbhcheck; |
goto hbhcheck; |
Line 479 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 461 ip6_input(struct mbuf *m, struct ifnet * |
|
/* |
/* |
* Unicast check |
* Unicast check |
*/ |
*/ |
rt = rtcache_lookup2(ro, &u.dst, 1, &hit); |
rt = rtcache_lookup2(&ip6_forward_rt, &u.dst, 1, &hit); |
if (hit) |
if (hit) |
IP6_STATINC(IP6_STAT_FORWARD_CACHEHIT); |
IP6_STATINC(IP6_STAT_FORWARD_CACHEHIT); |
else |
else |
Line 521 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 503 ip6_input(struct mbuf *m, struct ifnet * |
|
goto hbhcheck; |
goto hbhcheck; |
} else { |
} else { |
/* address is not ready, so discard the packet. */ |
/* address is not ready, so discard the packet. */ |
char ip6bufs[INET6_ADDRSTRLEN]; |
|
char ip6bufd[INET6_ADDRSTRLEN]; |
|
nd6log(LOG_INFO, "packet to an unready address %s->%s\n", |
nd6log(LOG_INFO, "packet to an unready address %s->%s\n", |
IN6_PRINT(ip6bufs, &ip6->ip6_src), |
ip6_sprintf(&ip6->ip6_src), |
IN6_PRINT(ip6bufd, &ip6->ip6_dst)); |
ip6_sprintf(&ip6->ip6_dst)); |
|
|
goto bad_unref; |
goto bad; |
} |
} |
} |
} |
|
|
Line 573 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 553 ip6_input(struct mbuf *m, struct ifnet * |
|
if (!ip6_forwarding) { |
if (!ip6_forwarding) { |
IP6_STATINC(IP6_STAT_CANTFORWARD); |
IP6_STATINC(IP6_STAT_CANTFORWARD); |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
goto bad_unref; |
goto bad; |
} |
} |
|
|
hbhcheck: |
hbhcheck: |
Line 612 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 592 ip6_input(struct mbuf *m, struct ifnet * |
|
#if 0 /*touches NULL pointer*/ |
#if 0 /*touches NULL pointer*/ |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
in6_ifstat_inc(rcvif, ifs6_in_discard); |
#endif |
#endif |
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
return; /* m have already been freed */ |
return; /* m have already been freed */ |
} |
} |
|
|
Line 637 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 615 ip6_input(struct mbuf *m, struct ifnet * |
|
icmp6_error(m, ICMP6_PARAM_PROB, |
icmp6_error(m, ICMP6_PARAM_PROB, |
ICMP6_PARAMPROB_HEADER, |
ICMP6_PARAMPROB_HEADER, |
(char *)&ip6->ip6_plen - (char *)ip6); |
(char *)&ip6->ip6_plen - (char *)ip6); |
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
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) { |
IP6_STATINC(IP6_STAT_TOOSHORT); |
IP6_STATINC(IP6_STAT_TOOSHORT); |
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
return; |
return; |
} |
} |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
KASSERT(IP6_HDR_ALIGNED_P(hbh)); |
Line 670 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 644 ip6_input(struct mbuf *m, struct ifnet * |
|
if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
if (m->m_pkthdr.len - sizeof(struct ip6_hdr) < plen) { |
IP6_STATINC(IP6_STAT_TOOSHORT); |
IP6_STATINC(IP6_STAT_TOOSHORT); |
in6_ifstat_inc(rcvif, ifs6_in_truncated); |
in6_ifstat_inc(rcvif, ifs6_in_truncated); |
goto bad_unref; |
goto bad; |
} |
} |
if (m->m_pkthdr.len > sizeof(struct ip6_hdr) + plen) { |
if (m->m_pkthdr.len > sizeof(struct ip6_hdr) + plen) { |
if (m->m_len == m->m_pkthdr.len) { |
if (m->m_len == m->m_pkthdr.len) { |
Line 692 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 666 ip6_input(struct mbuf *m, struct ifnet * |
|
* ip6_mforward() returns a non-zero value, the packet |
* ip6_mforward() returns a non-zero value, the packet |
* must be discarded, else it may be accepted below. |
* must be discarded, else it may be accepted below. |
*/ |
*/ |
if (ip6_mrouter != NULL) { |
if (ip6_mrouter && ip6_mforward(ip6, rcvif, m)) { |
int error; |
IP6_STATINC(IP6_STAT_CANTFORWARD); |
|
m_freem(m); |
SOFTNET_LOCK(); |
return; |
error = ip6_mforward(ip6, rcvif, m); |
} |
SOFTNET_UNLOCK(); |
if (!ours) { |
|
m_freem(m); |
if (error != 0) { |
return; |
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
IP6_STATINC(IP6_STAT_CANTFORWARD); |
|
goto bad; |
|
} |
|
} |
} |
if (!ours) |
|
goto bad_unref; |
|
} else if (!ours) { |
} else if (!ours) { |
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
ip6_forward(m, srcrt); |
ip6_forward(m, srcrt); |
return; |
return; |
} |
} |
Line 730 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 695 ip6_input(struct mbuf *m, struct ifnet * |
|
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
IN6_IS_ADDR_V4MAPPED(&ip6->ip6_dst)) { |
IP6_STATINC(IP6_STAT_BADSCOPE); |
IP6_STATINC(IP6_STAT_BADSCOPE); |
in6_ifstat_inc(rcvif, ifs6_in_addrerr); |
in6_ifstat_inc(rcvif, ifs6_in_addrerr); |
goto bad_unref; |
goto bad; |
} |
} |
|
|
/* |
/* |
Line 750 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 715 ip6_input(struct mbuf *m, struct ifnet * |
|
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
nest = 0; |
nest = 0; |
|
|
if (rt != NULL) { |
|
rtcache_unref(rt, ro); |
|
rt = NULL; |
|
} |
|
percpu_putref(ip6_forward_rt_percpu); |
|
|
|
rh_present = 0; |
rh_present = 0; |
while (nxt != IPPROTO_DONE) { |
while (nxt != IPPROTO_DONE) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
Line 791 ip6_input(struct mbuf *m, struct ifnet * |
|
Line 750 ip6_input(struct mbuf *m, struct ifnet * |
|
*/ |
*/ |
if ((inet6sw[ip_protox[nxt]].pr_flags |
if ((inet6sw[ip_protox[nxt]].pr_flags |
& PR_LASTHDR) != 0) { |
& PR_LASTHDR) != 0) { |
int error; |
int error = ipsec6_input(m); |
|
|
SOFTNET_LOCK(); |
|
error = ipsec6_input(m); |
|
SOFTNET_UNLOCK(); |
|
if (error) |
if (error) |
goto bad; |
goto bad; |
} |
} |
} |
} |
#endif /* IPSEC */ |
#endif /* IPSEC */ |
|
|
SOFTNET_LOCK(); |
|
nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
SOFTNET_UNLOCK(); |
|
} |
} |
return; |
return; |
|
|
bad_unref: |
|
rtcache_unref(rt, ro); |
|
percpu_putref(ip6_forward_rt_percpu); |
|
bad: |
bad: |
m_freem(m); |
m_freem(m); |
return; |
|
} |
} |
|
|
/* |
/* |
Line 1316 ip6_notify_pmtu(struct in6pcb *in6p, con |
|
Line 1264 ip6_notify_pmtu(struct in6pcb *in6p, con |
|
if (mtu == NULL) |
if (mtu == NULL) |
return; |
return; |
|
|
KASSERT(so != NULL); |
#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 */ |
memset(&mtuctl, 0, sizeof(mtuctl)); /* zero-clear for safety */ |
mtuctl.ip6m_mtu = *mtu; |
mtuctl.ip6m_mtu = *mtu; |
Line 1579 ip6_delaux(struct mbuf *m) |
|
Line 1530 ip6_delaux(struct mbuf *m) |
|
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 |
*/ |
*/ |
Line 1897 sysctl_net_inet6_ip6_setup(struct sysctl |
|
Line 1908 sysctl_net_inet6_ip6_setup(struct sysctl |
|
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 */ |
/* anonportalgo RFC6056 subtree */ |
const struct sysctlnode *portalgo_node; |
const struct sysctlnode *portalgo_node; |
sysctl_createv(clog, 0, NULL, &portalgo_node, |
sysctl_createv(clog, 0, NULL, &portalgo_node, |