diff options
Diffstat (limited to 'net/bridge/br_multicast.c')
| -rw-r--r-- | net/bridge/br_multicast.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index bbcb43582496..d1c578630678 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -29,6 +29,7 @@ #include <net/ipv6.h> #include <net/mld.h> #include <net/ip6_checksum.h> +#include <net/addrconf.h> #endif #include "br_private.h" @@ -724,7 +725,7 @@ static int br_ip6_multicast_add_group(struct net_bridge *br, { struct br_ip br_group; - if (!ipv6_is_transient_multicast(group)) + if (ipv6_addr_is_ll_all_nodes(group)) return 0; br_group.u.ip6 = *group; @@ -1255,7 +1256,7 @@ static int br_ip6_multicast_query(struct net_bridge *br, if (!mld2q->mld2q_nsrcs) group = &mld2q->mld2q_mca; - max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL); + max_delay = max(msecs_to_jiffies(mldv2_mrc(mld2q)), 1UL); } br_multicast_query_received(br, port, &br->ip6_querier, @@ -1410,7 +1411,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br, &br->ip6_query; - if (!ipv6_is_transient_multicast(group)) + if (ipv6_addr_is_ll_all_nodes(group)) return; br_group.u.ip6 = *group; @@ -1547,8 +1548,14 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, * - MLD has always Router Alert hop-by-hop option * - But we do not support jumbrograms. */ - if (ip6h->version != 6 || - ip6h->nexthdr != IPPROTO_HOPOPTS || + if (ip6h->version != 6) + return 0; + + /* Prevent flooding this packet if there is no listener present */ + if (!ipv6_addr_is_ll_all_nodes(&ip6h->daddr)) + BR_INPUT_SKB_CB(skb)->mrouters_only = 1; + + if (ip6h->nexthdr != IPPROTO_HOPOPTS || ip6h->payload_len == 0) return 0; |