version 1.48.4.1, 2009/05/13 17:22:29 |
version 1.80, 2017/01/24 07:09:25 |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#ifdef _KERNEL_OPT |
#include "opt_inet.h" |
#include "opt_inet.h" |
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#include "opt_net_mpsafe.h" |
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#endif |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/protosw.h> |
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#include <sys/syslog.h> |
#include <sys/syslog.h> |
#include <sys/sysctl.h> |
#include <sys/sysctl.h> |
#include <sys/kernel.h> |
#include <sys/kernel.h> |
#include <sys/callout.h> |
#include <sys/callout.h> |
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#include <sys/cprng.h> |
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#include <net/if.h> |
#include <net/if.h> |
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Line 136 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 139 __KERNEL_RCSID(0, "$NetBSD$"); |
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* This structure is used to keep track of in6_multi chains which belong to |
* This structure is used to keep track of in6_multi chains which belong to |
* deleted interface addresses. |
* deleted interface addresses. |
*/ |
*/ |
static LIST_HEAD(, multi6_kludge) in6_mk; /* XXX BSS initialization */ |
static LIST_HEAD(, multi6_kludge) in6_mk = LIST_HEAD_INITIALIZER(in6_mk); |
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struct multi6_kludge { |
struct multi6_kludge { |
LIST_ENTRY(multi6_kludge) mk_entry; |
LIST_ENTRY(multi6_kludge) mk_entry; |
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ip6_opts.ip6po_hbh = hbh; |
ip6_opts.ip6po_hbh = hbh; |
/* We will specify the hoplimit by a multicast option. */ |
/* We will specify the hoplimit by a multicast option. */ |
ip6_opts.ip6po_hlim = -1; |
ip6_opts.ip6po_hlim = -1; |
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ip6_opts.ip6po_prefer_tempaddr = IP6PO_TEMPADDR_NOTPREFER; |
} |
} |
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static void |
static void |
Line 194 mld_starttimer(struct in6_multi *in6m) |
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Line 198 mld_starttimer(struct in6_multi *in6m) |
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{ |
{ |
struct timeval now; |
struct timeval now; |
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KASSERT(in6m->in6m_timer != IN6M_TIMER_UNDEF); |
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microtime(&now); |
microtime(&now); |
in6m->in6m_timer_expire.tv_sec = now.tv_sec + in6m->in6m_timer / hz; |
in6m->in6m_timer_expire.tv_sec = now.tv_sec + in6m->in6m_timer / hz; |
in6m->in6m_timer_expire.tv_usec = now.tv_usec + |
in6m->in6m_timer_expire.tv_usec = now.tv_usec + |
Line 223 mld_timeo(void *arg) |
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Line 229 mld_timeo(void *arg) |
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{ |
{ |
struct in6_multi *in6m = arg; |
struct in6_multi *in6m = arg; |
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/* XXX NOMPSAFE still need softnet_lock */ |
mutex_enter(softnet_lock); |
mutex_enter(softnet_lock); |
KERNEL_LOCK(1, NULL); |
KERNEL_LOCK(1, NULL); |
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if (in6m->in6m_timer == IN6M_TIMER_UNDEF) |
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goto out; |
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in6m->in6m_timer = IN6M_TIMER_UNDEF; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
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switch (in6m->in6m_state) { |
switch (in6m->in6m_state) { |
Line 237 mld_timeo(void *arg) |
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Line 247 mld_timeo(void *arg) |
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break; |
break; |
} |
} |
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out: |
KERNEL_UNLOCK_ONE(NULL); |
KERNEL_UNLOCK_ONE(NULL); |
mutex_exit(softnet_lock); |
mutex_exit(softnet_lock); |
} |
} |
Line 289 mld_start_listening(struct in6_multi *in |
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Line 300 mld_start_listening(struct in6_multi *in |
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in6m->in6m_state = MLD_OTHERLISTENER; |
in6m->in6m_state = MLD_OTHERLISTENER; |
} else { |
} else { |
mld_sendpkt(in6m, MLD_LISTENER_REPORT, NULL); |
mld_sendpkt(in6m, MLD_LISTENER_REPORT, NULL); |
in6m->in6m_timer = arc4random() % |
in6m->in6m_timer = cprng_fast32() % |
(MLD_UNSOLICITED_REPORT_INTERVAL * hz); |
(MLD_UNSOLICITED_REPORT_INTERVAL * hz); |
in6m->in6m_state = MLD_IREPORTEDLAST; |
in6m->in6m_state = MLD_IREPORTEDLAST; |
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Line 324 mld_stop_listening(struct in6_multi *in6 |
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Line 335 mld_stop_listening(struct in6_multi *in6 |
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void |
void |
mld_input(struct mbuf *m, int off) |
mld_input(struct mbuf *m, int off) |
{ |
{ |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *ip6; |
struct mld_hdr *mldh; |
struct mld_hdr *mldh; |
struct ifnet *ifp = m->m_pkthdr.rcvif; |
struct ifnet *ifp; |
struct in6_multi *in6m = NULL; |
struct in6_multi *in6m = NULL; |
struct in6_addr mld_addr, all_in6; |
struct in6_addr mld_addr, all_in6; |
struct in6_ifaddr *ia; |
struct in6_ifaddr *ia; |
u_long timer = 0; /* timer value in the MLD query header */ |
u_long timer = 0; /* timer value in the MLD query header */ |
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int s; |
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ifp = m_get_rcvif(m, &s); |
IP6_EXTHDR_GET(mldh, struct mld_hdr *, m, off, sizeof(*mldh)); |
IP6_EXTHDR_GET(mldh, struct mld_hdr *, m, off, sizeof(*mldh)); |
if (mldh == NULL) { |
if (mldh == NULL) { |
ICMP6_STATINC(ICMP6_STAT_TOOSHORT); |
ICMP6_STATINC(ICMP6_STAT_TOOSHORT); |
return; |
goto out_nodrop; |
} |
} |
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/* source address validation */ |
/* source address validation */ |
Line 361 mld_input(struct mbuf *m, int off) |
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Line 374 mld_input(struct mbuf *m, int off) |
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* though RFC3590 says "SHOULD log" if the source of a query |
* though RFC3590 says "SHOULD log" if the source of a query |
* is the unspecified address. |
* is the unspecified address. |
*/ |
*/ |
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char ip6bufs[INET6_ADDRSTRLEN]; |
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char ip6bufm[INET6_ADDRSTRLEN]; |
log(LOG_INFO, |
log(LOG_INFO, |
"mld_input: src %s is not link-local (grp=%s)\n", |
"mld_input: src %s is not link-local (grp=%s)\n", |
ip6_sprintf(&ip6->ip6_src), ip6_sprintf(&mldh->mld_addr)); |
IN6_PRINT(ip6bufs,&ip6->ip6_src), |
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IN6_PRINT(ip6bufm, &mldh->mld_addr)); |
#endif |
#endif |
m_freem(m); |
goto out; |
return; |
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} |
} |
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/* |
/* |
Line 375 mld_input(struct mbuf *m, int off) |
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Line 390 mld_input(struct mbuf *m, int off) |
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mld_addr = mldh->mld_addr; |
mld_addr = mldh->mld_addr; |
if (in6_setscope(&mld_addr, ifp, NULL)) { |
if (in6_setscope(&mld_addr, ifp, NULL)) { |
/* XXX: this should not happen! */ |
/* XXX: this should not happen! */ |
m_free(m); |
goto out; |
return; |
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} |
} |
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/* |
/* |
Line 392 mld_input(struct mbuf *m, int off) |
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Line 406 mld_input(struct mbuf *m, int off) |
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* if we sent the last report. |
* if we sent the last report. |
*/ |
*/ |
switch (mldh->mld_type) { |
switch (mldh->mld_type) { |
case MLD_LISTENER_QUERY: |
case MLD_LISTENER_QUERY: { |
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struct psref psref; |
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if (ifp->if_flags & IFF_LOOPBACK) |
if (ifp->if_flags & IFF_LOOPBACK) |
break; |
break; |
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Line 418 mld_input(struct mbuf *m, int off) |
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Line 434 mld_input(struct mbuf *m, int off) |
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*/ |
*/ |
timer = ntohs(mldh->mld_maxdelay); |
timer = ntohs(mldh->mld_maxdelay); |
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IFP_TO_IA6(ifp, ia); |
ia = in6_get_ia_from_ifp_psref(ifp, &psref); |
if (ia == NULL) |
if (ia == NULL) |
break; |
break; |
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/* The following operations may sleep */ |
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m_put_rcvif(ifp, &s); |
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ifp = NULL; |
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LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) { |
LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) { |
if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &all_in6) || |
if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &all_in6) || |
IPV6_ADDR_MC_SCOPE(&in6m->in6m_addr) < |
IPV6_ADDR_MC_SCOPE(&in6m->in6m_addr) < |
Line 443 mld_input(struct mbuf *m, int off) |
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Line 463 mld_input(struct mbuf *m, int off) |
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} else if (in6m->in6m_timer == IN6M_TIMER_UNDEF || |
} else if (in6m->in6m_timer == IN6M_TIMER_UNDEF || |
mld_timerresid(in6m) > timer) { |
mld_timerresid(in6m) > timer) { |
in6m->in6m_timer = |
in6m->in6m_timer = |
1 + (arc4random() % timer) * hz / 1000; |
1 + (cprng_fast32() % timer) * hz / 1000; |
mld_starttimer(in6m); |
mld_starttimer(in6m); |
} |
} |
} |
} |
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ia6_release(ia, &psref); |
break; |
break; |
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} |
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case MLD_LISTENER_REPORT: |
case MLD_LISTENER_REPORT: |
/* |
/* |
Line 487 mld_input(struct mbuf *m, int off) |
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Line 509 mld_input(struct mbuf *m, int off) |
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break; |
break; |
} |
} |
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out: |
m_freem(m); |
m_freem(m); |
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out_nodrop: |
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m_put_rcvif(ifp, &s); |
} |
} |
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static void |
static void |
Line 501 mld_sendpkt(struct in6_multi *in6m, int |
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Line 526 mld_sendpkt(struct in6_multi *in6m, int |
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struct in6_ifaddr *ia = NULL; |
struct in6_ifaddr *ia = NULL; |
struct ifnet *ifp = in6m->in6m_ifp; |
struct ifnet *ifp = in6m->in6m_ifp; |
int ignflags; |
int ignflags; |
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struct psref psref; |
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int bound; |
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/* |
/* |
* At first, find a link local address on the outgoing interface |
* At first, find a link local address on the outgoing interface |
Line 509 mld_sendpkt(struct in6_multi *in6m, int |
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Line 536 mld_sendpkt(struct in6_multi *in6m, int |
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* the case where we first join a link-local address. |
* the case where we first join a link-local address. |
*/ |
*/ |
ignflags = (IN6_IFF_NOTREADY|IN6_IFF_ANYCAST) & ~IN6_IFF_TENTATIVE; |
ignflags = (IN6_IFF_NOTREADY|IN6_IFF_ANYCAST) & ~IN6_IFF_TENTATIVE; |
if ((ia = in6ifa_ifpforlinklocal(ifp, ignflags)) == NULL) |
bound = curlwp_bind(); |
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ia = in6ifa_ifpforlinklocal_psref(ifp, ignflags, &psref); |
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if (ia == NULL) { |
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curlwp_bindx(bound); |
return; |
return; |
if ((ia->ia6_flags & IN6_IFF_TENTATIVE)) |
} |
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if ((ia->ia6_flags & IN6_IFF_TENTATIVE)) { |
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ia6_release(ia, &psref); |
ia = NULL; |
ia = NULL; |
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} |
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/* Allocate two mbufs to store IPv6 header and MLD header */ |
/* Allocate two mbufs to store IPv6 header and MLD header */ |
mldh = mld_allocbuf(&mh, sizeof(struct mld_hdr), in6m, type); |
mldh = mld_allocbuf(&mh, sizeof(struct mld_hdr), in6m, type); |
if (mldh == NULL) |
if (mldh == NULL) { |
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ia6_release(ia, &psref); |
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curlwp_bindx(bound); |
return; |
return; |
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} |
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/* fill src/dst here */ |
/* fill src/dst here */ |
ip6 = mtod(mh, struct ip6_hdr *); |
ip6 = mtod(mh, struct ip6_hdr *); |
ip6->ip6_src = ia ? ia->ia_addr.sin6_addr : in6addr_any; |
ip6->ip6_src = ia ? ia->ia_addr.sin6_addr : in6addr_any; |
ip6->ip6_dst = dst ? *dst : in6m->in6m_addr; |
ip6->ip6_dst = dst ? *dst : in6m->in6m_addr; |
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ia6_release(ia, &psref); |
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curlwp_bindx(bound); |
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mldh->mld_addr = in6m->in6m_addr; |
mldh->mld_addr = in6m->in6m_addr; |
in6_clearscope(&mldh->mld_addr); /* XXX */ |
in6_clearscope(&mldh->mld_addr); /* XXX */ |
Line 531 mld_sendpkt(struct in6_multi *in6m, int |
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Line 569 mld_sendpkt(struct in6_multi *in6m, int |
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/* construct multicast option */ |
/* construct multicast option */ |
memset(&im6o, 0, sizeof(im6o)); |
memset(&im6o, 0, sizeof(im6o)); |
im6o.im6o_multicast_ifp = ifp; |
im6o.im6o_multicast_if_index = if_get_index(ifp); |
im6o.im6o_multicast_hlim = 1; |
im6o.im6o_multicast_hlim = 1; |
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/* |
/* |
Line 556 mld_sendpkt(struct in6_multi *in6m, int |
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Line 594 mld_sendpkt(struct in6_multi *in6m, int |
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} |
} |
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ip6_output(mh, &ip6_opts, NULL, ia ? 0 : IPV6_UNSPECSRC, |
ip6_output(mh, &ip6_opts, NULL, ia ? 0 : IPV6_UNSPECSRC, |
&im6o, (struct socket *)NULL, NULL); |
&im6o, NULL, NULL); |
} |
} |
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static struct mld_hdr * |
static struct mld_hdr * |
Line 584 mld_allocbuf(struct mbuf **mh, int len, |
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Line 622 mld_allocbuf(struct mbuf **mh, int len, |
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(*mh)->m_next = md; |
(*mh)->m_next = md; |
md->m_next = NULL; |
md->m_next = NULL; |
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(*mh)->m_pkthdr.rcvif = NULL; |
m_reset_rcvif((*mh)); |
(*mh)->m_pkthdr.len = sizeof(struct ip6_hdr) + len; |
(*mh)->m_pkthdr.len = sizeof(struct ip6_hdr) + len; |
(*mh)->m_len = sizeof(struct ip6_hdr); |
(*mh)->m_len = sizeof(struct ip6_hdr); |
MH_ALIGN(*mh, sizeof(struct ip6_hdr)); |
MH_ALIGN(*mh, sizeof(struct ip6_hdr)); |
Line 616 in6_addmulti(struct in6_addr *maddr6, st |
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Line 654 in6_addmulti(struct in6_addr *maddr6, st |
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int *errorp, int timer) |
int *errorp, int timer) |
{ |
{ |
struct in6_ifaddr *ia; |
struct in6_ifaddr *ia; |
struct in6_ifreq ifr; |
struct sockaddr_in6 sin6; |
struct in6_multi *in6m; |
struct in6_multi *in6m; |
int s = splsoftnet(); |
int s = splsoftnet(); |
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Line 632 in6_addmulti(struct in6_addr *maddr6, st |
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Line 670 in6_addmulti(struct in6_addr *maddr6, st |
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*/ |
*/ |
in6m->in6m_refcount++; |
in6m->in6m_refcount++; |
} else { |
} else { |
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int _s; |
/* |
/* |
* New address; allocate a new multicast record |
* New address; allocate a new multicast record |
* and link it into the interface's multicast list. |
* and link it into the interface's multicast list. |
*/ |
*/ |
in6m = (struct in6_multi *) |
in6m = (struct in6_multi *) |
malloc(sizeof(*in6m), M_IPMADDR, M_NOWAIT); |
malloc(sizeof(*in6m), M_IPMADDR, M_NOWAIT|M_ZERO); |
if (in6m == NULL) { |
if (in6m == NULL) { |
splx(s); |
splx(s); |
*errorp = ENOBUFS; |
*errorp = ENOBUFS; |
return (NULL); |
return (NULL); |
} |
} |
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memset(in6m, 0, sizeof(*in6m)); |
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in6m->in6m_addr = *maddr6; |
in6m->in6m_addr = *maddr6; |
in6m->in6m_ifp = ifp; |
in6m->in6m_ifp = ifp; |
in6m->in6m_refcount = 1; |
in6m->in6m_refcount = 1; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
IFP_TO_IA6(ifp, ia); |
callout_init(&in6m->in6m_timer_ch, CALLOUT_MPSAFE); |
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callout_setfunc(&in6m->in6m_timer_ch, mld_timeo, in6m); |
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_s = pserialize_read_enter(); |
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ia = in6_get_ia_from_ifp(ifp); |
if (ia == NULL) { |
if (ia == NULL) { |
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pserialize_read_exit(_s); |
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callout_destroy(&in6m->in6m_timer_ch); |
free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
splx(s); |
splx(s); |
*errorp = EADDRNOTAVAIL; /* appropriate? */ |
*errorp = EADDRNOTAVAIL; /* appropriate? */ |
return (NULL); |
return (NULL); |
} |
} |
in6m->in6m_ia = ia; |
in6m->in6m_ia = ia; |
IFAREF(&ia->ia_ifa); /* gain a reference */ |
ifaref(&ia->ia_ifa); /* gain a reference */ |
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/* FIXME NOMPSAFE: need to lock */ |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
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pserialize_read_exit(_s); |
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/* |
/* |
* Ask the network driver to update its multicast reception |
* Ask the network driver to update its multicast reception |
* filter appropriately for the new address. |
* filter appropriately for the new address. |
*/ |
*/ |
sockaddr_in6_init(&ifr.ifr_addr, maddr6, 0, 0, 0); |
sockaddr_in6_init(&sin6, maddr6, 0, 0, 0); |
*errorp = (*ifp->if_ioctl)(ifp, SIOCADDMULTI, &ifr); |
*errorp = if_mcast_op(ifp, SIOCADDMULTI, sin6tosa(&sin6)); |
if (*errorp) { |
if (*errorp) { |
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callout_destroy(&in6m->in6m_timer_ch); |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
IFAFREE(&ia->ia_ifa); |
ifafree(&ia->ia_ifa); |
splx(s); |
splx(s); |
return (NULL); |
return (NULL); |
} |
} |
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callout_init(&in6m->in6m_timer_ch, CALLOUT_MPSAFE); |
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callout_setfunc(&in6m->in6m_timer_ch, mld_timeo, in6m); |
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in6m->in6m_timer = timer; |
in6m->in6m_timer = timer; |
if (in6m->in6m_timer > 0) { |
if (in6m->in6m_timer > 0) { |
in6m->in6m_state = MLD_REPORTPENDING; |
in6m->in6m_state = MLD_REPORTPENDING; |
Line 701 in6_addmulti(struct in6_addr *maddr6, st |
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Line 746 in6_addmulti(struct in6_addr *maddr6, st |
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void |
void |
in6_delmulti(struct in6_multi *in6m) |
in6_delmulti(struct in6_multi *in6m) |
{ |
{ |
struct in6_ifreq ifr; |
struct sockaddr_in6 sin6; |
struct in6_ifaddr *ia; |
struct in6_ifaddr *ia; |
int s = splsoftnet(); |
int s = splsoftnet(); |
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mld_stoptimer(in6m); |
mld_stoptimer(in6m); |
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if (--in6m->in6m_refcount == 0) { |
if (--in6m->in6m_refcount == 0) { |
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int _s; |
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/* |
/* |
* No remaining claims to this record; let MLD6 know |
* No remaining claims to this record; let MLD6 know |
* that we are leaving the multicast group. |
* that we are leaving the multicast group. |
Line 719 in6_delmulti(struct in6_multi *in6m) |
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Line 766 in6_delmulti(struct in6_multi *in6m) |
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*/ |
*/ |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
if (in6m->in6m_ia != NULL) { |
if (in6m->in6m_ia != NULL) { |
IFAFREE(&in6m->in6m_ia->ia_ifa); /* release reference */ |
ifafree(&in6m->in6m_ia->ia_ifa); /* release reference */ |
in6m->in6m_ia = NULL; |
in6m->in6m_ia = NULL; |
} |
} |
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Line 727 in6_delmulti(struct in6_multi *in6m) |
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Line 774 in6_delmulti(struct in6_multi *in6m) |
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* Delete all references of this multicasting group from |
* Delete all references of this multicasting group from |
* the membership arrays |
* the membership arrays |
*/ |
*/ |
for (ia = in6_ifaddr; ia; ia = ia->ia_next) { |
_s = pserialize_read_enter(); |
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IN6_ADDRLIST_READER_FOREACH(ia) { |
struct in6_multi_mship *imm; |
struct in6_multi_mship *imm; |
LIST_FOREACH(imm, &ia->ia6_memberships, i6mm_chain) { |
LIST_FOREACH(imm, &ia->ia6_memberships, i6mm_chain) { |
if (imm->i6mm_maddr == in6m) |
if (imm->i6mm_maddr == in6m) |
imm->i6mm_maddr = NULL; |
imm->i6mm_maddr = NULL; |
} |
} |
} |
} |
|
pserialize_read_exit(_s); |
|
|
/* |
/* |
* Notify the network driver to update its multicast |
* Notify the network driver to update its multicast |
* reception filter. |
* reception filter. |
*/ |
*/ |
sockaddr_in6_init(&ifr.ifr_addr, &in6m->in6m_addr, 0, 0, 0); |
sockaddr_in6_init(&sin6, &in6m->in6m_addr, 0, 0, 0); |
(*in6m->in6m_ifp->if_ioctl)(in6m->in6m_ifp, SIOCDELMULTI, &ifr); |
if_mcast_op(in6m->in6m_ifp, SIOCDELMULTI, sin6tosa(&sin6)); |
|
|
|
/* Tell mld_timeo we're halting the timer */ |
|
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
|
if (mutex_owned(softnet_lock)) |
|
callout_halt(&in6m->in6m_timer_ch, softnet_lock); |
|
else |
|
callout_halt(&in6m->in6m_timer_ch, NULL); |
callout_destroy(&in6m->in6m_timer_ch); |
callout_destroy(&in6m->in6m_timer_ch); |
|
|
free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
} |
} |
splx(s); |
splx(s); |
Line 754 in6_joingroup(struct ifnet *ifp, struct |
|
Line 811 in6_joingroup(struct ifnet *ifp, struct |
|
{ |
{ |
struct in6_multi_mship *imm; |
struct in6_multi_mship *imm; |
|
|
imm = malloc(sizeof(*imm), M_IPMADDR, M_NOWAIT); |
imm = malloc(sizeof(*imm), M_IPMADDR, M_NOWAIT|M_ZERO); |
if (!imm) { |
if (imm == NULL) { |
*errorp = ENOBUFS; |
*errorp = ENOBUFS; |
return NULL; |
return NULL; |
} |
} |
|
|
memset(imm, 0, sizeof(*imm)); |
|
imm->i6mm_maddr = in6_addmulti(addr, ifp, errorp, timer); |
imm->i6mm_maddr = in6_addmulti(addr, ifp, errorp, timer); |
if (!imm->i6mm_maddr) { |
if (!imm->i6mm_maddr) { |
/* *errorp is already set */ |
/* *errorp is already set */ |
Line 793 in6_savemkludge(struct in6_ifaddr *oia) |
|
Line 849 in6_savemkludge(struct in6_ifaddr *oia) |
|
{ |
{ |
struct in6_ifaddr *ia; |
struct in6_ifaddr *ia; |
struct in6_multi *in6m; |
struct in6_multi *in6m; |
|
int s; |
|
|
IFP_TO_IA6(oia->ia_ifp, ia); |
s = pserialize_read_enter(); |
|
ia = in6_get_ia_from_ifp(oia->ia_ifp); |
if (ia) { /* there is another address */ |
if (ia) { /* there is another address */ |
KASSERT(ia != oia); |
KASSERT(ia != oia); |
while ((in6m = LIST_FIRST(&oia->ia6_multiaddrs)) != NULL) { |
while ((in6m = LIST_FIRST(&oia->ia6_multiaddrs)) != NULL) { |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
IFAREF(&ia->ia_ifa); |
ifaref(&ia->ia_ifa); |
IFAFREE(&in6m->in6m_ia->ia_ifa); |
ifafree(&in6m->in6m_ia->ia_ifa); |
in6m->in6m_ia = ia; |
in6m->in6m_ia = ia; |
|
/* FIXME NOMPSAFE: need to lock */ |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
} |
} |
} else { /* last address on this if deleted, save */ |
} else { /* last address on this if deleted, save */ |
Line 816 in6_savemkludge(struct in6_ifaddr *oia) |
|
Line 875 in6_savemkludge(struct in6_ifaddr *oia) |
|
|
|
while ((in6m = LIST_FIRST(&oia->ia6_multiaddrs)) != NULL) { |
while ((in6m = LIST_FIRST(&oia->ia6_multiaddrs)) != NULL) { |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
IFAFREE(&in6m->in6m_ia->ia_ifa); /* release reference */ |
ifafree(&in6m->in6m_ia->ia_ifa); /* release reference */ |
in6m->in6m_ia = NULL; |
in6m->in6m_ia = NULL; |
LIST_INSERT_HEAD(&mk->mk_head, in6m, in6m_entry); |
LIST_INSERT_HEAD(&mk->mk_head, in6m, in6m_entry); |
} |
} |
} |
} |
|
pserialize_read_exit(s); |
} |
} |
|
|
/* |
/* |
Line 843 in6_restoremkludge(struct in6_ifaddr *ia |
|
Line 903 in6_restoremkludge(struct in6_ifaddr *ia |
|
while ((in6m = LIST_FIRST(&mk->mk_head)) != NULL) { |
while ((in6m = LIST_FIRST(&mk->mk_head)) != NULL) { |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
in6m->in6m_ia = ia; |
in6m->in6m_ia = ia; |
IFAREF(&ia->ia_ifa); |
ifaref(&ia->ia_ifa); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
} |
} |
} |
} |
Line 870 in6_createmkludge(struct ifnet *ifp) |
|
Line 930 in6_createmkludge(struct ifnet *ifp) |
|
return; |
return; |
} |
} |
|
|
mk = malloc(sizeof(*mk), M_IPMADDR, M_WAITOK); |
mk = malloc(sizeof(*mk), M_IPMADDR, M_ZERO|M_WAITOK); |
|
|
memset(mk, 0, sizeof(*mk)); |
|
LIST_INIT(&mk->mk_head); |
LIST_INIT(&mk->mk_head); |
mk->mk_ifp = ifp; |
mk->mk_ifp = ifp; |
LIST_INSERT_HEAD(&in6_mk, mk, mk_entry); |
LIST_INSERT_HEAD(&in6_mk, mk, mk_entry); |
Line 899 in6_purgemkludge(struct ifnet *ifp) |
|
Line 958 in6_purgemkludge(struct ifnet *ifp) |
|
LIST_REMOVE(mk, mk_entry); |
LIST_REMOVE(mk, mk_entry); |
free(mk, M_IPMADDR); |
free(mk, M_IPMADDR); |
} |
} |
|
|
|
static int |
|
in6_mkludge_sysctl(SYSCTLFN_ARGS) |
|
{ |
|
struct multi6_kludge *mk; |
|
struct in6_multi *in6m; |
|
int error; |
|
uint32_t tmp; |
|
size_t written; |
|
|
|
if (namelen != 1) |
|
return EINVAL; |
|
|
|
if (oldp == NULL) { |
|
*oldlenp = 0; |
|
LIST_FOREACH(mk, &in6_mk, mk_entry) { |
|
if (mk->mk_ifp->if_index == name[0]) |
|
continue; |
|
LIST_FOREACH(in6m, &mk->mk_head, in6m_entry) { |
|
*oldlenp += sizeof(struct in6_addr) + |
|
sizeof(uint32_t); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
error = 0; |
|
written = 0; |
|
LIST_FOREACH(mk, &in6_mk, mk_entry) { |
|
if (mk->mk_ifp->if_index == name[0]) |
|
continue; |
|
LIST_FOREACH(in6m, &mk->mk_head, in6m_entry) { |
|
if (written + sizeof(struct in6_addr) + |
|
sizeof(uint32_t) > *oldlenp) |
|
goto done; |
|
error = sysctl_copyout(l, &in6m->in6m_addr, |
|
oldp, sizeof(struct in6_addr)); |
|
if (error) |
|
goto done; |
|
oldp = (char *)oldp + sizeof(struct in6_addr); |
|
written += sizeof(struct in6_addr); |
|
tmp = in6m->in6m_refcount; |
|
error = sysctl_copyout(l, &tmp, oldp, sizeof(tmp)); |
|
if (error) |
|
goto done; |
|
oldp = (char *)oldp + sizeof(tmp); |
|
written += sizeof(tmp); |
|
} |
|
} |
|
|
|
done: |
|
*oldlenp = written; |
|
return error; |
|
} |
|
|
|
static int |
|
in6_multicast_sysctl(SYSCTLFN_ARGS) |
|
{ |
|
struct ifnet *ifp; |
|
struct ifaddr *ifa; |
|
struct in6_ifaddr *ifa6; |
|
struct in6_multi *in6m; |
|
uint32_t tmp; |
|
int error; |
|
size_t written; |
|
struct psref psref, psref_ia; |
|
int bound, s; |
|
|
|
if (namelen != 1) |
|
return EINVAL; |
|
|
|
bound = curlwp_bind(); |
|
ifp = if_get_byindex(name[0], &psref); |
|
if (ifp == NULL) { |
|
curlwp_bindx(bound); |
|
return ENODEV; |
|
} |
|
|
|
if (oldp == NULL) { |
|
*oldlenp = 0; |
|
s = pserialize_read_enter(); |
|
IFADDR_READER_FOREACH(ifa, ifp) { |
|
if (ifa->ifa_addr->sa_family != AF_INET6) |
|
continue; |
|
ifa6 = (struct in6_ifaddr *)ifa; |
|
LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) { |
|
*oldlenp += 2 * sizeof(struct in6_addr) + |
|
sizeof(uint32_t); |
|
} |
|
} |
|
pserialize_read_exit(s); |
|
if_put(ifp, &psref); |
|
curlwp_bindx(bound); |
|
return 0; |
|
} |
|
|
|
error = 0; |
|
written = 0; |
|
s = pserialize_read_enter(); |
|
IFADDR_READER_FOREACH(ifa, ifp) { |
|
if (ifa->ifa_addr->sa_family != AF_INET6) |
|
continue; |
|
|
|
ifa_acquire(ifa, &psref_ia); |
|
pserialize_read_exit(s); |
|
|
|
ifa6 = (struct in6_ifaddr *)ifa; |
|
LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) { |
|
if (written + 2 * sizeof(struct in6_addr) + |
|
sizeof(uint32_t) > *oldlenp) |
|
goto done; |
|
error = sysctl_copyout(l, &ifa6->ia_addr.sin6_addr, |
|
oldp, sizeof(struct in6_addr)); |
|
if (error) |
|
goto done; |
|
oldp = (char *)oldp + sizeof(struct in6_addr); |
|
written += sizeof(struct in6_addr); |
|
error = sysctl_copyout(l, &in6m->in6m_addr, |
|
oldp, sizeof(struct in6_addr)); |
|
if (error) |
|
goto done; |
|
oldp = (char *)oldp + sizeof(struct in6_addr); |
|
written += sizeof(struct in6_addr); |
|
tmp = in6m->in6m_refcount; |
|
error = sysctl_copyout(l, &tmp, oldp, sizeof(tmp)); |
|
if (error) |
|
goto done; |
|
oldp = (char *)oldp + sizeof(tmp); |
|
written += sizeof(tmp); |
|
} |
|
|
|
s = pserialize_read_enter(); |
|
ifa_release(ifa, &psref_ia); |
|
} |
|
pserialize_read_exit(s); |
|
done: |
|
ifa_release(ifa, &psref_ia); |
|
if_put(ifp, &psref); |
|
curlwp_bindx(bound); |
|
*oldlenp = written; |
|
return error; |
|
} |
|
|
|
void |
|
in6_sysctl_multicast_setup(struct sysctllog **clog) |
|
{ |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "inet6", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET6, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "multicast", |
|
SYSCTL_DESCR("Multicast information"), |
|
in6_multicast_sysctl, 0, NULL, 0, |
|
CTL_NET, PF_INET6, CTL_CREATE, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "multicast_kludge", |
|
SYSCTL_DESCR("multicast kludge information"), |
|
in6_mkludge_sysctl, 0, NULL, 0, |
|
CTL_NET, PF_INET6, CTL_CREATE, CTL_EOL); |
|
} |