[patch net-next 4/5] bridge: implement rtnl_link_ops->get_size and rtnl_link_ops->fill_info
From: Jiri Pirko <jiri@resnulli.us>
Date: 2014-09-05 13:51:52
Subsystem:
ethernet bridge, networking drivers, networking [general], the rest · Maintainers:
Nikolay Aleksandrov, Ido Schimmel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Allow rtnetlink users to get bridge master info in IFLA_INFO_DATA attr This initial part implements forward_delay, hello_time, max_age options. Signed-off-by: Jiri Pirko <jiri@resnulli.us> --- include/uapi/linux/if_link.h | 12 ++++++++++++ net/bridge/br_netlink.c | 25 +++++++++++++++++++++++++ 2 files changed, 37 insertions(+)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index ff95760..c80f95f 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h@@ -215,6 +215,18 @@ enum in6_addr_gen_mode { IN6_ADDR_GEN_MODE_NONE, }; +/* Bridge section */ + +enum { + IFLA_BR_UNSPEC, + IFLA_BR_FORWARD_DELAY, + IFLA_BR_HELLO_TIME, + IFLA_BR_MAX_AGE, + __IFLA_BR_MAX, +}; + +#define IFLA_BR_MAX (__IFLA_BR_MAX - 1) + enum { BRIDGE_MODE_UNSPEC, BRIDGE_MODE_HAIRPIN,
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 05aeea1..bcac09f 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c@@ -484,6 +484,29 @@ static size_t br_port_get_slave_size(const struct net_device *brdev, return br_port_info_size(); } +static size_t br_get_size(const struct net_device *brdev) +{ + return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */ + nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */ + nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */ + 0; +} + +static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) +{ + struct net_bridge *br = netdev_priv(brdev); + u32 forward_delay = jiffies_to_clock_t(br->forward_delay); + u32 hello_time = jiffies_to_clock_t(br->hello_time); + u32 age_time = jiffies_to_clock_t(br->max_age); + + if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) || + nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) || + nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time)) + return -EMSGSIZE; + + return 0; +} + static size_t br_get_link_af_size(const struct net_device *dev) { struct net_port_vlans *pv;
@@ -514,6 +537,8 @@ struct rtnl_link_ops br_link_ops __read_mostly = { .validate = br_validate, .newlink = br_dev_newlink, .dellink = br_dev_delete, + .get_size = br_get_size, + .fill_info = br_fill_info, .slave_maxtype = IFLA_BRPORT_MAX, .slave_policy = br_port_policy,
--
1.9.3