diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2019-08-17 14:22:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-17 12:36:57 -0700 |
| commit | e77b0c84e33c766728991fb637ce0ffe41be2fb1 (patch) | |
| tree | f010b9c462431e262e6151ca458be86a46aa6229 /net/bridge/br_mdb.c | |
| parent | 6545916ed9f4b805515a7546908a6b2ff2d060b5 (diff) | |
net: bridge: mdb: dump host-joined entries as well
Currently we dump only the port mdb entries but we can have host-joined
entries on the bridge itself and they should be treated as normal temp
mdbs, they're already notified:
$ bridge monitor all
[MDB]dev br0 port br0 grp ff02::8 temp
The group will not be shown in the bridge mdb output, but it takes 1 slot
and it's timing out. If it's only host-joined then the mdb show output
can even be empty.
After this patch we show the host-joined groups:
$ bridge mdb show
dev br0 port br0 grp ff02::8 temp
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_mdb.c')
| -rw-r--r-- | net/bridge/br_mdb.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index 77730983097e..985273425117 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -78,22 +78,35 @@ static void __mdb_entry_to_br_ip(struct br_mdb_entry *entry, struct br_ip *ip) } static int __mdb_fill_info(struct sk_buff *skb, + struct net_bridge_mdb_entry *mp, struct net_bridge_port_group *p) { + struct timer_list *mtimer; struct nlattr *nest_ent; struct br_mdb_entry e; + u8 flags = 0; + int ifindex; memset(&e, 0, sizeof(e)); - __mdb_entry_fill_flags(&e, p->flags); - e.ifindex = p->port->dev->ifindex; - e.vid = p->addr.vid; - if (p->addr.proto == htons(ETH_P_IP)) - e.addr.u.ip4 = p->addr.u.ip4; + if (p) { + ifindex = p->port->dev->ifindex; + mtimer = &p->timer; + flags = p->flags; + } else { + ifindex = mp->br->dev->ifindex; + mtimer = &mp->timer; + } + + __mdb_entry_fill_flags(&e, flags); + e.ifindex = ifindex; + e.vid = mp->addr.vid; + if (mp->addr.proto == htons(ETH_P_IP)) + e.addr.u.ip4 = mp->addr.u.ip4; #if IS_ENABLED(CONFIG_IPV6) - if (p->addr.proto == htons(ETH_P_IPV6)) - e.addr.u.ip6 = p->addr.u.ip6; + if (mp->addr.proto == htons(ETH_P_IPV6)) + e.addr.u.ip6 = mp->addr.u.ip6; #endif - e.addr.proto = p->addr.proto; + e.addr.proto = mp->addr.proto; nest_ent = nla_nest_start_noflag(skb, MDBA_MDB_ENTRY_INFO); if (!nest_ent) @@ -102,7 +115,7 @@ static int __mdb_fill_info(struct sk_buff *skb, if (nla_put_nohdr(skb, sizeof(e), &e) || nla_put_u32(skb, MDBA_MDB_EATTR_TIMER, - br_timer_value(&p->timer))) { + br_timer_value(mtimer))) { nla_nest_cancel(skb, nest_ent); return -EMSGSIZE; } @@ -139,12 +152,20 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, break; } + if (mp->host_joined) { + err = __mdb_fill_info(skb, mp, NULL); + if (err) { + nla_nest_cancel(skb, nest2); + break; + } + } + for (pp = &mp->ports; (p = rcu_dereference(*pp)) != NULL; pp = &p->next) { if (!p->port) continue; - err = __mdb_fill_info(skb, p); + err = __mdb_fill_info(skb, mp, p); if (err) { nla_nest_cancel(skb, nest2); goto out; |