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net: Add support for fill_slave_info to VRF device

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Allows userspace to have direct access to VRF table association
versus looking up master device and its table.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2016-02-02 07:43:45 -08:00 committed by David S. Miller
parent 22fae97d86
commit 67eb03318b
2 changed files with 29 additions and 0 deletions
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21
drivers/net/vrf.c
View File

@ -877,6 +877,24 @@ static int vrf_fillinfo(struct sk_buff *skb,
return nla_put_u32(skb, IFLA_VRF_TABLE, vrf->tb_id);
}
static size_t vrf_get_slave_size(const struct net_device *bond_dev,
const struct net_device *slave_dev)
{
return nla_total_size(sizeof(u32)); /* IFLA_VRF_PORT_TABLE */
}
static int vrf_fill_slave_info(struct sk_buff *skb,
const struct net_device *vrf_dev,
const struct net_device *slave_dev)
{
struct net_vrf *vrf = netdev_priv(vrf_dev);
if (nla_put_u32(skb, IFLA_VRF_PORT_TABLE, vrf->tb_id))
return -EMSGSIZE;
return 0;
}
static const struct nla_policy vrf_nl_policy[IFLA_VRF_MAX + 1] = {
[IFLA_VRF_TABLE] = { .type = NLA_U32 },
};
@ -890,6 +908,9 @@ static struct rtnl_link_ops vrf_link_ops __read_mostly = {
.validate = vrf_validate,
.fill_info = vrf_fillinfo,
.get_slave_size = vrf_get_slave_size,
.fill_slave_info = vrf_fill_slave_info,
.newlink = vrf_newlink,
.dellink = vrf_dellink,
.setup = vrf_setup,

8
include/uapi/linux/if_link.h
View File

@ -405,6 +405,14 @@ enum {
#define IFLA_VRF_MAX (__IFLA_VRF_MAX - 1)
enum {
IFLA_VRF_PORT_UNSPEC,
IFLA_VRF_PORT_TABLE,
__IFLA_VRF_PORT_MAX
};
#define IFLA_VRF_PORT_MAX (__IFLA_VRF_PORT_MAX - 1)
/* IPVLAN section */
enum {
IFLA_IPVLAN_UNSPEC,