diff options
| -rw-r--r-- | include/uapi/linux/if_bridge.h | 13 | ||||
| -rw-r--r-- | net/bridge/br_mdb.c | 47 |
2 files changed, 43 insertions, 17 deletions
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h index ec3547234998..0890b217580d 100644 --- a/include/uapi/linux/if_bridge.h +++ b/include/uapi/linux/if_bridge.h @@ -137,7 +137,10 @@ struct bridge_vlan_info { /* Bridge multicast database attributes * [MDBA_MDB] = { * [MDBA_MDB_ENTRY] = { - * [MDBA_MDB_ENTRY_INFO] + * [MDBA_MDB_ENTRY_INFO] { + * struct br_mdb_entry + * [MDBA_MDB_EATTR attributes] + * } * } * } * [MDBA_ROUTER] = { @@ -166,6 +169,14 @@ enum { }; #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1) +/* per mdb entry additional attributes */ +enum { + MDBA_MDB_EATTR_UNSPEC, + MDBA_MDB_EATTR_TIMER, + __MDBA_MDB_EATTR_MAX +}; +#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1) + enum { MDBA_ROUTER_UNSPEC, MDBA_ROUTER_PORT, diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index ac089286526e..cf51b7bcb5d5 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -88,26 +88,41 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, for (pp = &mp->ports; (p = rcu_dereference(*pp)) != NULL; pp = &p->next) { + struct nlattr *nest_ent; + struct br_mdb_entry e; + port = p->port; - if (port) { - struct br_mdb_entry e; - memset(&e, 0, sizeof(e)); - e.ifindex = port->dev->ifindex; - e.vid = p->addr.vid; - __mdb_entry_fill_flags(&e, p->flags); - if (p->addr.proto == htons(ETH_P_IP)) - e.addr.u.ip4 = p->addr.u.ip4; + if (!port) + continue; + + memset(&e, 0, sizeof(e)); + e.ifindex = port->dev->ifindex; + e.vid = p->addr.vid; + __mdb_entry_fill_flags(&e, p->flags); + if (p->addr.proto == htons(ETH_P_IP)) + e.addr.u.ip4 = p->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 (p->addr.proto == htons(ETH_P_IPV6)) + e.addr.u.ip6 = p->addr.u.ip6; #endif - e.addr.proto = p->addr.proto; - if (nla_put(skb, MDBA_MDB_ENTRY_INFO, sizeof(e), &e)) { - nla_nest_cancel(skb, nest2); - err = -EMSGSIZE; - goto out; - } + e.addr.proto = p->addr.proto; + nest_ent = nla_nest_start(skb, + MDBA_MDB_ENTRY_INFO); + if (!nest_ent) { + nla_nest_cancel(skb, nest2); + err = -EMSGSIZE; + goto out; + } + if (nla_put_nohdr(skb, sizeof(e), &e) || + nla_put_u32(skb, + MDBA_MDB_EATTR_TIMER, + br_timer_value(&p->timer))) { + nla_nest_cancel(skb, nest_ent); + nla_nest_cancel(skb, nest2); + err = -EMSGSIZE; + goto out; } + nla_nest_end(skb, nest_ent); } nla_nest_end(skb, nest2); skip: |