version 1.39.8.1, 2007/11/06 23:34:07 |
version 1.55.4.1, 2014/12/29 15:45:44 |
Line 110 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 110 __KERNEL_RCSID(0, "$NetBSD$"); |
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#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 127 __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 166 static void mld_stoptimer(struct in6_mul |
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Line 169 static void mld_stoptimer(struct in6_mul |
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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. */ |
Line 192 mld_starttimer(struct in6_multi *in6m) |
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Line 195 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 + |
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mld_timeo(void *arg) |
mld_timeo(void *arg) |
{ |
{ |
struct in6_multi *in6m = arg; |
struct in6_multi *in6m = arg; |
int s = splsoftnet(); |
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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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in6m->in6m_timer = IN6M_TIMER_UNDEF; |
in6m->in6m_timer = IN6M_TIMER_UNDEF; |
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Line 233 mld_timeo(void *arg) |
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Line 243 mld_timeo(void *arg) |
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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 257 mld_timerresid(struct in6_multi *in6m) |
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Line 269 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 284 mld_start_listening(struct in6_multi *in |
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Line 296 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 319 mld_stop_listening(struct in6_multi *in6 |
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Line 331 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 = m->m_pkthdr.rcvif; |
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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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; |
return; |
} |
} |
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Line 436 mld_input(struct mbuf *m, int off) |
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Line 448 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 536 mld_sendpkt(struct in6_multi *in6m, int |
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Line 548 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 551 mld_sendpkt(struct in6_multi *in6m, int |
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Line 563 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 611 in6_addmulti(struct in6_addr *maddr6, st |
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Line 623 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 644 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; |
Line 659 in6_addmulti(struct in6_addr *maddr6, st |
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Line 670 in6_addmulti(struct in6_addr *maddr6, st |
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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) { |
LIST_REMOVE(in6m, in6m_entry); |
LIST_REMOVE(in6m, in6m_entry); |
free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
Line 673 in6_addmulti(struct in6_addr *maddr6, st |
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Line 680 in6_addmulti(struct in6_addr *maddr6, st |
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return (NULL); |
return (NULL); |
} |
} |
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callout_init(&in6m->in6m_timer_ch, 0); |
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); |
in6m->in6m_timer = timer; |
in6m->in6m_timer = timer; |
if (in6m->in6m_timer > 0) { |
if (in6m->in6m_timer > 0) { |
Line 700 in6_addmulti(struct in6_addr *maddr6, st |
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Line 707 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 738 in6_delmulti(struct in6_multi *in6m) |
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Line 745 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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/* 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); |
callout_destroy(&in6m->in6m_timer_ch); |
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free(in6m, M_IPMADDR); |
free(in6m, M_IPMADDR); |
} |
} |
splx(s); |
splx(s); |
Line 754 in6_joingroup(struct ifnet *ifp, struct |
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Line 765 in6_joingroup(struct ifnet *ifp, struct |
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{ |
{ |
struct in6_multi_mship *imm; |
struct in6_multi_mship *imm; |
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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; |
} |
} |
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memset(imm, 0, sizeof(*imm)); |
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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 870 in6_createmkludge(struct ifnet *ifp) |
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Line 880 in6_createmkludge(struct ifnet *ifp) |
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return; |
return; |
} |
} |
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mk = malloc(sizeof(*mk), M_IPMADDR, M_WAITOK); |
mk = malloc(sizeof(*mk), M_IPMADDR, M_ZERO|M_WAITOK); |
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memset(mk, 0, sizeof(*mk)); |
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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); |