diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index c5cbdcb1f0b5..3e18fc6c7877 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -866,6 +866,27 @@ int tipc_bclink_set_queue_limits(struct net *net, u32 limit) return 0; } +int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]) +{ + int err; + u32 win; + struct nlattr *props[TIPC_NLA_PROP_MAX + 1]; + + if (!attrs[TIPC_NLA_LINK_PROP]) + return -EINVAL; + + err = tipc_nl_parse_link_prop(attrs[TIPC_NLA_LINK_PROP], props); + if (err) + return err; + + if (!props[TIPC_NLA_PROP_WIN]) + return -EOPNOTSUPP; + + win = nla_get_u32(props[TIPC_NLA_PROP_WIN]); + + return tipc_bclink_set_queue_limits(net, win); +} + int tipc_bclink_init(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index 4bdc12277d33..3c290a48f720 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -131,6 +131,7 @@ uint tipc_bclink_get_mtu(void); int tipc_bclink_xmit(struct net *net, struct sk_buff_head *list); void tipc_bclink_wakeup_users(struct net *net); int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg); +int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]); void tipc_bclink_input(struct net *net); #endif diff --git a/net/tipc/link.c b/net/tipc/link.c index 43a515dc97b0..374d52335168 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1893,6 +1893,9 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info) name = nla_data(attrs[TIPC_NLA_LINK_NAME]); + if (strcmp(name, tipc_bclink_name) == 0) + return tipc_nl_bc_link_set(net, attrs); + node = tipc_link_find_owner(net, name, &bearer_id); if (!node) return -EINVAL; @@ -2175,50 +2178,53 @@ out: int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info) { struct net *net = genl_info_net(info); - struct sk_buff *ans_skb; struct tipc_nl_msg msg; - struct tipc_link *link; - struct tipc_node *node; char *name; - int bearer_id; int err; - if (!info->attrs[TIPC_NLA_LINK_NAME]) - return -EINVAL; - - name = nla_data(info->attrs[TIPC_NLA_LINK_NAME]); - node = tipc_link_find_owner(net, name, &bearer_id); - if (!node) - return -EINVAL; - - ans_skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!ans_skb) - return -ENOMEM; - - msg.skb = ans_skb; msg.portid = info->snd_portid; msg.seq = info->snd_seq; - tipc_node_lock(node); - link = node->links[bearer_id]; - if (!link) { - err = -EINVAL; - goto err_out; + if (!info->attrs[TIPC_NLA_LINK_NAME]) + return -EINVAL; + name = nla_data(info->attrs[TIPC_NLA_LINK_NAME]); + + msg.skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg.skb) + return -ENOMEM; + + if (strcmp(name, tipc_bclink_name) == 0) { + err = tipc_nl_add_bc_link(net, &msg); + if (err) { + nlmsg_free(msg.skb); + return err; + } + } else { + int bearer_id; + struct tipc_node *node; + struct tipc_link *link; + + node = tipc_link_find_owner(net, name, &bearer_id); + if (!node) + return -EINVAL; + + tipc_node_lock(node); + link = node->links[bearer_id]; + if (!link) { + tipc_node_unlock(node); + nlmsg_free(msg.skb); + return -EINVAL; + } + + err = __tipc_nl_add_link(net, &msg, link, 0); + tipc_node_unlock(node); + if (err) { + nlmsg_free(msg.skb); + return err; + } } - err = __tipc_nl_add_link(net, &msg, link, 0); - if (err) - goto err_out; - - tipc_node_unlock(node); - - return genlmsg_reply(ans_skb, info); - -err_out: - tipc_node_unlock(node); - nlmsg_free(ans_skb); - - return err; + return genlmsg_reply(msg.skb, info); } int tipc_nl_link_reset_stats(struct sk_buff *skb, struct genl_info *info)