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authorMartin Pieuchot <mpi@cvs.openbsd.org>2015-11-12 18:01:44 +0000
committerMartin Pieuchot <mpi@cvs.openbsd.org>2015-11-12 18:01:44 +0000
commit82c7ffc882d325954cf271f195c8be24dd7fe26c (patch)
tree40ddf5859e06e796440323d58e403a3ce36090a7 /sys/netinet6/ip6_mroute.c
parent3fdad9db1764f803b4d243c86b8d24ca5b75be25 (diff)
Do not try to guess if there's still an IPv4 multicast routing daemon
using an interface based on the value of ``ip_mrouter''. Calling SIOCDELMULTI on an interface is correct even if such daemon is running because the Ethernet layer refcounts currently joined multicast groups.
Diffstat (limited to 'sys/netinet6/ip6_mroute.c')
-rw-r--r--sys/netinet6/ip6_mroute.c46
1 files changed, 18 insertions, 28 deletions
diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c
index fddfc738336..05fb95fb4f9 100644
--- a/sys/netinet6/ip6_mroute.c
+++ b/sys/netinet6/ip6_mroute.c
@@ -133,14 +133,12 @@ struct mrt6stat mrt6stat;
struct mf6c *mf6ctable[MF6CTBLSIZ];
SIPHASH_KEY mf6chashkey;
u_char n6expire[MF6CTBLSIZ];
-struct mif6 mif6table[MAXMIFS];
+struct mif6 mif6table[MAXMIFS];
void expire_upcalls6(void *);
#define EXPIRE_TIMEOUT (hz / 4) /* 4x / second */
#define UPCALL_EXPIRE 6 /* number of timeouts */
-extern struct socket *ip_mrouter;
-
/*
* 'Interfaces' associated with decapsulator (so we can tell
* packets that went through it from ones that get reflected
@@ -522,32 +520,24 @@ ip6_mrouter_done(void)
* For each phyint in use, disable promiscuous reception of all IPv6
* multicasts.
*/
- /*
- * If there is still IPv4 multicast routing daemon,
- * we remain interfaces to receive all muliticasted packets.
- * XXX: there may be an interface in which the IPv4 multicast
- * daemon is not interested...
- */
- if (!ip_mrouter) {
- for (mifi = 0; mifi < nummifs; mifi++) {
- if (mif6table[mifi].m6_ifp == NULL)
- continue;
+ for (mifi = 0; mifi < nummifs; mifi++) {
+ if (mif6table[mifi].m6_ifp == NULL)
+ continue;
- if (!(mif6table[mifi].m6_flags & MIFF_REGISTER)) {
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_addr.sin6_family = AF_INET6;
- ifr.ifr_addr.sin6_addr= in6addr_any;
- ifp = mif6table[mifi].m6_ifp;
- (*ifp->if_ioctl)(ifp, SIOCDELMULTI,
- (caddr_t)&ifr);
- } else {
- /* Reset register interface */
- if (reg_mif_num != (mifi_t)-1) {
- if_detach(ifp);
- free(ifp, M_DEVBUF, sizeof(*ifp));
- reg_mif_num = (mifi_t)-1;
- reg_mif_idx = 0;
- }
+ if (!(mif6table[mifi].m6_flags & MIFF_REGISTER)) {
+ memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_addr.sin6_family = AF_INET6;
+ ifr.ifr_addr.sin6_addr= in6addr_any;
+ ifp = mif6table[mifi].m6_ifp;
+ (*ifp->if_ioctl)(ifp, SIOCDELMULTI,
+ (caddr_t)&ifr);
+ } else {
+ /* Reset register interface */
+ if (reg_mif_num != (mifi_t)-1) {
+ if_detach(ifp);
+ free(ifp, M_DEVBUF, sizeof(*ifp));
+ reg_mif_num = (mifi_t)-1;
+ reg_mif_idx = 0;
}
}
}