version 1.39.6.1, 2007/09/03 16:49:08 |
version 1.71, 2016/07/07 09:32:03 |
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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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#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> |
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#include <sys/socketvar.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
#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 125 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 129 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/ip6_var.h> |
#include <netinet6/ip6_var.h> |
#include <netinet6/scope6_var.h> |
#include <netinet6/scope6_var.h> |
#include <netinet/icmp6.h> |
#include <netinet/icmp6.h> |
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#include <netinet6/icmp6_private.h> |
#include <netinet6/mld6_var.h> |
#include <netinet6/mld6_var.h> |
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#include <net/net_osdep.h> |
#include <net/net_osdep.h> |
Line 134 __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; |
Line 163 static struct mld_hdr * mld_allocbuf(str |
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Line 168 static struct mld_hdr * mld_allocbuf(str |
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static void mld_sendpkt(struct in6_multi *, int, const struct in6_addr *); |
static void mld_sendpkt(struct in6_multi *, int, const struct in6_addr *); |
static void mld_starttimer(struct in6_multi *); |
static void mld_starttimer(struct in6_multi *); |
static void mld_stoptimer(struct in6_multi *); |
static void mld_stoptimer(struct in6_multi *); |
static void mld_timeo(struct in6_multi *); |
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static u_long mld_timerresid(struct in6_multi *); |
static u_long mld_timerresid(struct in6_multi *); |
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void |
void |
mld_init() |
mld_init(void) |
{ |
{ |
static u_int8_t hbh_buf[8]; |
static u_int8_t hbh_buf[8]; |
struct ip6_hbh *hbh = (struct ip6_hbh *)hbh_buf; |
struct ip6_hbh *hbh = (struct ip6_hbh *)hbh_buf; |
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hbh_buf[3] = 0; |
hbh_buf[3] = 0; |
hbh_buf[4] = IP6OPT_RTALERT; |
hbh_buf[4] = IP6OPT_RTALERT; |
hbh_buf[5] = IP6OPT_RTALERT_LEN - 2; |
hbh_buf[5] = IP6OPT_RTALERT_LEN - 2; |
bcopy((void *)&rtalert_code, &hbh_buf[6], sizeof(u_int16_t)); |
memcpy(&hbh_buf[6], (void *)&rtalert_code, sizeof(u_int16_t)); |
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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 193 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 203 mld_starttimer(struct in6_multi *in6m) |
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Line 210 mld_starttimer(struct in6_multi *in6m) |
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} |
} |
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/* start or restart the timer */ |
/* start or restart the timer */ |
callout_reset(in6m->in6m_timer_ch, in6m->in6m_timer, |
callout_schedule(&in6m->in6m_timer_ch, in6m->in6m_timer); |
(void (*) __P((void *)))mld_timeo, in6m); |
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} |
} |
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static void |
static void |
Line 213 mld_stoptimer(struct in6_multi *in6m) |
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Line 219 mld_stoptimer(struct in6_multi *in6m) |
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if (in6m->in6m_timer == IN6M_TIMER_UNDEF) |
if (in6m->in6m_timer == IN6M_TIMER_UNDEF) |
return; |
return; |
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callout_stop(in6m->in6m_timer_ch); |
callout_stop(&in6m->in6m_timer_ch); |
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in6m->in6m_timer = IN6M_TIMER_UNDEF; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
} |
} |
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static void |
static void |
mld_timeo(struct in6_multi *in6m) |
mld_timeo(void *arg) |
{ |
{ |
int s = splsoftnet(); |
struct in6_multi *in6m = arg; |
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in6m->in6m_timer = IN6M_TIMER_UNDEF; |
mutex_enter(softnet_lock); |
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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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callout_stop(in6m->in6m_timer_ch); |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
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switch (in6m->in6m_state) { |
switch (in6m->in6m_state) { |
case MLD_REPORTPENDING: |
case MLD_REPORTPENDING: |
Line 236 mld_timeo(struct in6_multi *in6m) |
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Line 246 mld_timeo(struct in6_multi *in6m) |
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break; |
break; |
} |
} |
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splx(s); |
out: |
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KERNEL_UNLOCK_ONE(NULL); |
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mutex_exit(softnet_lock); |
} |
} |
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static u_long |
static u_long |
Line 260 mld_timerresid(struct in6_multi *in6m) |
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Line 272 mld_timerresid(struct in6_multi *in6m) |
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} |
} |
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/* return the remaining time in milliseconds */ |
/* return the remaining time in milliseconds */ |
return (((u_long)(diff.tv_sec * 1000000 + diff.tv_usec)) / 1000); |
return diff.tv_sec * 1000 + diff.tv_usec / 1000; |
} |
} |
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static void |
static void |
Line 287 mld_start_listening(struct in6_multi *in |
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Line 299 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 322 mld_stop_listening(struct in6_multi *in6 |
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Line 334 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; |
int 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) { |
icmp6stat.icp6s_tooshort++; |
ICMP6_STATINC(ICMP6_STAT_TOOSHORT); |
return; |
goto out_nodrop; |
} |
} |
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/* source address validation */ |
/* source address validation */ |
Line 363 mld_input(struct mbuf *m, int off) |
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Line 377 mld_input(struct mbuf *m, int off) |
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"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)); |
ip6_sprintf(&ip6->ip6_src), ip6_sprintf(&mldh->mld_addr)); |
#endif |
#endif |
m_freem(m); |
goto out; |
return; |
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} |
} |
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/* |
/* |
Line 373 mld_input(struct mbuf *m, int off) |
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Line 386 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 439 mld_input(struct mbuf *m, int off) |
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Line 451 mld_input(struct mbuf *m, int off) |
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mld_sendpkt(in6m, MLD_LISTENER_REPORT, NULL); |
mld_sendpkt(in6m, MLD_LISTENER_REPORT, NULL); |
in6m->in6m_state = MLD_IREPORTEDLAST; |
in6m->in6m_state = MLD_IREPORTEDLAST; |
} else if (in6m->in6m_timer == IN6M_TIMER_UNDEF || |
} else if (in6m->in6m_timer == IN6M_TIMER_UNDEF || |
mld_timerresid(in6m) > (u_long)timer) { |
mld_timerresid(in6m) > timer) { |
in6m->in6m_timer = arc4random() % |
in6m->in6m_timer = |
(int)(((long)timer * hz) / 1000); |
1 + (cprng_fast32() % timer) * hz / 1000; |
mld_starttimer(in6m); |
mld_starttimer(in6m); |
} |
} |
} |
} |
Line 485 mld_input(struct mbuf *m, int off) |
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Line 497 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 529 mld_sendpkt(struct in6_multi *in6m, int |
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Line 544 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 539 mld_sendpkt(struct in6_multi *in6m, int |
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Line 554 mld_sendpkt(struct in6_multi *in6m, int |
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im6o.im6o_multicast_loop = (ip6_mrouter != NULL); |
im6o.im6o_multicast_loop = (ip6_mrouter != NULL); |
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/* increment output statictics */ |
/* increment output statictics */ |
icmp6stat.icp6s_outhist[type]++; |
ICMP6_STATINC(ICMP6_STAT_OUTHIST + type); |
icmp6_ifstat_inc(ifp, ifs6_out_msg); |
icmp6_ifstat_inc(ifp, ifs6_out_msg); |
switch (type) { |
switch (type) { |
case MLD_LISTENER_QUERY: |
case MLD_LISTENER_QUERY: |
Line 554 mld_sendpkt(struct in6_multi *in6m, int |
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Line 569 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 582 mld_allocbuf(struct mbuf **mh, int len, |
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Line 597 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 614 in6_addmulti(struct in6_addr *maddr6, st |
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Line 629 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 635 in6_addmulti(struct in6_addr *maddr6, st |
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Line 650 in6_addmulti(struct in6_addr *maddr6, st |
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* 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; |
in6m->in6m_timer_ch = |
callout_init(&in6m->in6m_timer_ch, CALLOUT_MPSAFE); |
malloc(sizeof(*in6m->in6m_timer_ch), M_IPMADDR, M_NOWAIT); |
callout_setfunc(&in6m->in6m_timer_ch, mld_timeo, in6m); |
if (in6m->in6m_timer_ch == NULL) { |
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free(in6m, M_IPMADDR); |
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splx(s); |
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return (NULL); |
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} |
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IFP_TO_IA6(ifp, ia); |
IFP_TO_IA6(ifp, ia); |
if (ia == NULL) { |
if (ia == NULL) { |
/* leaks in6m_timer_ch */ |
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 */ |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
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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); |
if (ifp->if_ioctl == NULL) |
*errorp = if_mcast_op(ifp, SIOCADDMULTI, sin6tosa(&sin6)); |
*errorp = ENXIO; /* XXX: appropriate? */ |
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else |
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*errorp = (*ifp->if_ioctl)(ifp, SIOCADDMULTI, |
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(void *)&ifr); |
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if (*errorp) { |
if (*errorp) { |
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callout_destroy(&in6m->in6m_timer_ch); |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
/* leaks in6m_timer_ch */ |
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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, 0); |
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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 711 in6_addmulti(struct in6_addr *maddr6, st |
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Line 716 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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Line 729 in6_delmulti(struct in6_multi *in6m) |
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Line 734 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 737 in6_delmulti(struct in6_multi *in6m) |
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Line 742 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) { |
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) |
Line 749 in6_delmulti(struct in6_multi *in6m) |
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Line 754 in6_delmulti(struct in6_multi *in6m) |
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* 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, |
if_mcast_op(in6m->in6m_ifp, SIOCDELMULTI, sin6tosa(&sin6)); |
SIOCDELMULTI, (void *)&ifr); |
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free(in6m->in6m_timer_ch, M_IPMADDR); |
/* Tell mld_timeo we're halting the timer */ |
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in6m->in6m_timer = IN6M_TIMER_UNDEF; |
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callout_halt(&in6m->in6m_timer_ch, softnet_lock); |
|
callout_destroy(&in6m->in6m_timer_ch); |
|
|
free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
} |
} |
splx(s); |
splx(s); |
Line 765 in6_joingroup(struct ifnet *ifp, struct |
|
Line 774 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 810 in6_savemkludge(struct in6_ifaddr *oia) |
|
Line 818 in6_savemkludge(struct in6_ifaddr *oia) |
|
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; |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
LIST_INSERT_HEAD(&ia->ia6_multiaddrs, in6m, in6m_entry); |
} |
} |
Line 827 in6_savemkludge(struct in6_ifaddr *oia) |
|
Line 835 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); |
} |
} |
Line 854 in6_restoremkludge(struct in6_ifaddr *ia |
|
Line 862 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 881 in6_createmkludge(struct ifnet *ifp) |
|
Line 889 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 910 in6_purgemkludge(struct ifnet *ifp) |
|
Line 917 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; |
|
int bound; |
|
|
|
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; |
|
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); |
|
} |
|
} |
|
if_put(ifp, &psref); |
|
curlwp_bindx(bound); |
|
return 0; |
|
} |
|
|
|
error = 0; |
|
written = 0; |
|
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) { |
|
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); |
|
} |
|
} |
|
done: |
|
if_put(ifp, &psref); |
|
curlwp_bindx(bound); |
|
*oldlenp = written; |
|
return error; |
|
} |
|
|
|
SYSCTL_SETUP(sysctl_in6_mklude_setup, "sysctl net.inet6.multicast_kludge subtree setup") |
|
{ |
|
|
|
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); |
|
} |