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tipc: add bearer set to new netlink api

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Add TIPC_NL_BEARER_SET command to the new tipc netlink API.

This command can set one or more link properties for a particular
bearer.

Netlink logical layout of bearer set message:
-> bearer
    -> name
    -> link properties
        [ -> tolerance ]
        [ -> priority ]
        [ -> window ]

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Alpe
2014-11-20 10:29:09 +01:00
committed by David S. Miller
parent 35b9dd7607
commit 315c00bc9f
4 changed files with 56 additions and 0 deletions
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49
net/tipc/bearer.c
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@@ -849,3 +849,52 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
return 0;
}
int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
{
int err;
char *name;
struct tipc_bearer *b;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
err = nla_parse_nested(attrs, TIPC_NLA_BEARER_MAX,
info->attrs[TIPC_NLA_BEARER],
tipc_nl_bearer_policy);
if (err)
return err;
if (!attrs[TIPC_NLA_BEARER_NAME])
return -EINVAL;
name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
rtnl_lock();
b = tipc_bearer_find(name);
if (!b) {
rtnl_unlock();
return -EINVAL;
}
if (attrs[TIPC_NLA_BEARER_PROP]) {
struct nlattr *props[TIPC_NLA_PROP_MAX + 1];
err = tipc_nl_parse_link_prop(attrs[TIPC_NLA_BEARER_PROP],
props);
if (err) {
rtnl_unlock();
return err;
}
if (props[TIPC_NLA_PROP_TOL])
b->tolerance = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
if (props[TIPC_NLA_PROP_PRIO])
b->priority = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
if (props[TIPC_NLA_PROP_WIN])
b->window = nla_get_u32(props[TIPC_NLA_PROP_WIN]);
}
rtnl_unlock();
return 0;
}