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bridge: implement rtnl_link_ops->changelink

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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>
This commit is contained in:
Jiri Pirko 2014-09-05 15:51:32 +02:00 committed by David S. Miller
parent e5c3ea5c66
commit 1332351617
1 changed files with 39 additions and 0 deletions
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39
net/bridge/br_netlink.c
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@ -484,6 +484,42 @@ static size_t br_port_get_slave_size(const struct net_device *brdev,
return br_port_info_size();
}
static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
[IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
[IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
[IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
};
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
struct nlattr *data[])
{
struct net_bridge *br = netdev_priv(brdev);
int err;
if (!data)
return 0;
if (data[IFLA_BR_FORWARD_DELAY]) {
err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
if (err)
return err;
}
if (data[IFLA_BR_HELLO_TIME]) {
err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
if (err)
return err;
}
if (data[IFLA_BR_MAX_AGE]) {
err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
if (err)
return err;
}
return 0;
}
static size_t br_get_size(const struct net_device *brdev)
{
return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
@ -534,8 +570,11 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
.kind = "bridge",
.priv_size = sizeof(struct net_bridge),
.setup = br_dev_setup,
.maxtype = IFLA_BRPORT_MAX,
.policy = br_policy,
.validate = br_validate,
.newlink = br_dev_newlink,
.changelink = br_changelink,
.dellink = br_dev_delete,
.get_size = br_get_size,
.fill_info = br_fill_info,