version 1.68, 2016/06/21 03:28:27 |
version 1.82, 2017/02/22 07:46:00 |
Line 106 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 106 __KERNEL_RCSID(0, "$NetBSD$"); |
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#ifdef _KERNEL_OPT |
#ifdef _KERNEL_OPT |
#include "opt_inet.h" |
#include "opt_inet.h" |
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#include "opt_net_mpsafe.h" |
#endif |
#endif |
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#include <sys/param.h> |
#include <sys/param.h> |
Line 113 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 114 __KERNEL_RCSID(0, "$NetBSD$"); |
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#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> |
Line 229 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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Line 344 mld_input(struct mbuf *m, int off) |
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Line 345 mld_input(struct mbuf *m, int off) |
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int s; |
int s; |
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ifp = m_get_rcvif(m, &s); |
ifp = m_get_rcvif(m, &s); |
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if (__predict_false(ifp == NULL)) |
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goto out; |
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); |
Line 373 mld_input(struct mbuf *m, int off) |
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Line 376 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 |
goto out; |
goto out; |
} |
} |
Line 402 mld_input(struct mbuf *m, int off) |
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Line 408 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 428 mld_input(struct mbuf *m, int off) |
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Line 436 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 457 mld_input(struct mbuf *m, int off) |
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Line 469 mld_input(struct mbuf *m, int off) |
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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 479 mld_input(struct mbuf *m, int off) |
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Line 493 mld_input(struct mbuf *m, int off) |
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* If we belong to the group being reported, stop |
* If we belong to the group being reported, stop |
* our timer for that group. |
* our timer for that group. |
*/ |
*/ |
IN6_LOOKUP_MULTI(mld_addr, ifp, in6m); |
in6m = in6_lookup_multi(&mld_addr, ifp); |
if (in6m) { |
if (in6m) { |
mld_stoptimer(in6m); /* transit to idle state */ |
mld_stoptimer(in6m); /* transit to idle state */ |
in6m->in6m_state = MLD_OTHERLISTENER; /* clear flag */ |
in6m->in6m_state = MLD_OTHERLISTENER; /* clear flag */ |
Line 514 mld_sendpkt(struct in6_multi *in6m, int |
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Line 528 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 522 mld_sendpkt(struct in6_multi *in6m, int |
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Line 538 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 638 in6_addmulti(struct in6_addr *maddr6, st |
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Line 665 in6_addmulti(struct in6_addr *maddr6, st |
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/* |
/* |
* See if address already in list. |
* See if address already in list. |
*/ |
*/ |
IN6_LOOKUP_MULTI(*maddr6, ifp, in6m); |
in6m = in6_lookup_multi(maddr6, ifp); |
if (in6m != NULL) { |
if (in6m != NULL) { |
/* |
/* |
* Found it; just increment the refrence count. |
* Found it; just increment the refrence count. |
*/ |
*/ |
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. |
Line 664 in6_addmulti(struct in6_addr *maddr6, st |
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Line 692 in6_addmulti(struct in6_addr *maddr6, st |
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callout_init(&in6m->in6m_timer_ch, CALLOUT_MPSAFE); |
callout_init(&in6m->in6m_timer_ch, CALLOUT_MPSAFE); |
callout_setfunc(&in6m->in6m_timer_ch, mld_timeo, in6m); |
callout_setfunc(&in6m->in6m_timer_ch, mld_timeo, in6m); |
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IFP_TO_IA6(ifp, ia); |
_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); |
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 674 in6_addmulti(struct in6_addr *maddr6, st |
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Line 704 in6_addmulti(struct in6_addr *maddr6, st |
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} |
} |
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 |
Line 723 in6_delmulti(struct in6_multi *in6m) |
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Line 755 in6_delmulti(struct in6_multi *in6m) |
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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 742 in6_delmulti(struct in6_multi *in6m) |
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Line 776 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; |
} |
} |
} |
} |
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pserialize_read_exit(_s); |
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/* |
/* |
* Notify the network driver to update its multicast |
* Notify the network driver to update its multicast |
Line 759 in6_delmulti(struct in6_multi *in6m) |
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Line 795 in6_delmulti(struct in6_multi *in6m) |
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/* Tell mld_timeo we're halting the timer */ |
/* Tell mld_timeo we're halting the timer */ |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
callout_halt(&in6m->in6m_timer_ch, softnet_lock); |
if (mutex_owned(softnet_lock)) |
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callout_halt(&in6m->in6m_timer_ch, softnet_lock); |
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else |
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callout_halt(&in6m->in6m_timer_ch, NULL); |
callout_destroy(&in6m->in6m_timer_ch); |
callout_destroy(&in6m->in6m_timer_ch); |
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free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
Line 812 in6_savemkludge(struct in6_ifaddr *oia) |
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Line 851 in6_savemkludge(struct in6_ifaddr *oia) |
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{ |
{ |
struct in6_ifaddr *ia; |
struct in6_ifaddr *ia; |
struct in6_multi *in6m; |
struct in6_multi *in6m; |
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int s; |
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IFP_TO_IA6(oia->ia_ifp, ia); |
s = pserialize_read_enter(); |
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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) { |
Line 821 in6_savemkludge(struct in6_ifaddr *oia) |
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Line 862 in6_savemkludge(struct in6_ifaddr *oia) |
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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; |
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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); |
} |
} |
} else { /* last address on this if deleted, save */ |
} else { /* last address on this if deleted, save */ |
Line 840 in6_savemkludge(struct in6_ifaddr *oia) |
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Line 882 in6_savemkludge(struct in6_ifaddr *oia) |
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LIST_INSERT_HEAD(&mk->mk_head, in6m, in6m_entry); |
LIST_INSERT_HEAD(&mk->mk_head, in6m, in6m_entry); |
} |
} |
} |
} |
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pserialize_read_exit(s); |
} |
} |
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/* |
/* |
Line 982 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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Line 1025 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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uint32_t tmp; |
uint32_t tmp; |
int error; |
int error; |
size_t written; |
size_t written; |
struct psref psref; |
struct psref psref, psref_ia; |
int bound; |
int bound, s; |
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if (namelen != 1) |
if (namelen != 1) |
return EINVAL; |
return EINVAL; |
Line 997 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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Line 1040 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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if (oldp == NULL) { |
if (oldp == NULL) { |
*oldlenp = 0; |
*oldlenp = 0; |
IFADDR_FOREACH(ifa, ifp) { |
s = pserialize_read_enter(); |
if (ifa->ifa_addr == NULL) |
IFADDR_READER_FOREACH(ifa, ifp) { |
continue; |
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if (ifa->ifa_addr->sa_family != AF_INET6) |
if (ifa->ifa_addr->sa_family != AF_INET6) |
continue; |
continue; |
ifa6 = (struct in6_ifaddr *)ifa; |
ifa6 = (struct in6_ifaddr *)ifa; |
Line 1008 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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Line 1050 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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sizeof(uint32_t); |
sizeof(uint32_t); |
} |
} |
} |
} |
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pserialize_read_exit(s); |
if_put(ifp, &psref); |
if_put(ifp, &psref); |
curlwp_bindx(bound); |
curlwp_bindx(bound); |
return 0; |
return 0; |
Line 1015 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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Line 1058 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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error = 0; |
error = 0; |
written = 0; |
written = 0; |
IFADDR_FOREACH(ifa, ifp) { |
s = pserialize_read_enter(); |
if (ifa->ifa_addr == NULL) |
IFADDR_READER_FOREACH(ifa, ifp) { |
continue; |
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if (ifa->ifa_addr->sa_family != AF_INET6) |
if (ifa->ifa_addr->sa_family != AF_INET6) |
continue; |
continue; |
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ifa_acquire(ifa, &psref_ia); |
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pserialize_read_exit(s); |
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ifa6 = (struct in6_ifaddr *)ifa; |
ifa6 = (struct in6_ifaddr *)ifa; |
LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) { |
LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) { |
if (written + 2 * sizeof(struct in6_addr) + |
if (written + 2 * sizeof(struct in6_addr) + |
Line 1044 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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Line 1090 in6_multicast_sysctl(SYSCTLFN_ARGS) |
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oldp = (char *)oldp + sizeof(tmp); |
oldp = (char *)oldp + sizeof(tmp); |
written += sizeof(tmp); |
written += sizeof(tmp); |
} |
} |
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s = pserialize_read_enter(); |
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ifa_release(ifa, &psref_ia); |
} |
} |
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pserialize_read_exit(s); |
done: |
done: |
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ifa_release(ifa, &psref_ia); |
if_put(ifp, &psref); |
if_put(ifp, &psref); |
curlwp_bindx(bound); |
curlwp_bindx(bound); |
*oldlenp = written; |
*oldlenp = written; |
return error; |
return error; |
} |
} |
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SYSCTL_SETUP(sysctl_in6_mklude_setup, "sysctl net.inet6.multicast_kludge subtree setup") |
void |
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in6_sysctl_multicast_setup(struct sysctllog **clog) |
{ |
{ |
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sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |