bridge: implement rtnl_link_ops->changelink
Allow rtnetlink users to set bridge master info via IFLA_INFO_DATA attr This initial part implements forward_delay, hello_time, max_age options. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -484,6 +484,42 @@ static size_t br_port_get_slave_size(const struct net_device *brdev,
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return br_port_info_size();
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}
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static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
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[IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
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[IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
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[IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
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};
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static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
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struct nlattr *data[])
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{
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struct net_bridge *br = netdev_priv(brdev);
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int err;
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if (!data)
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return 0;
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if (data[IFLA_BR_FORWARD_DELAY]) {
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err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
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if (err)
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return err;
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}
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if (data[IFLA_BR_HELLO_TIME]) {
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err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
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if (err)
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return err;
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}
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if (data[IFLA_BR_MAX_AGE]) {
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err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
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if (err)
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return err;
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}
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return 0;
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}
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static size_t br_get_size(const struct net_device *brdev)
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{
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return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
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@ -534,8 +570,11 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
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.kind = "bridge",
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.priv_size = sizeof(struct net_bridge),
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.setup = br_dev_setup,
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.maxtype = IFLA_BRPORT_MAX,
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.policy = br_policy,
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.validate = br_validate,
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.newlink = br_dev_newlink,
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.changelink = br_changelink,
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.dellink = br_dev_delete,
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.get_size = br_get_size,
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.fill_info = br_fill_info,
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