net: addr IFLA_OPERSTATE to netlink message for ipv6 ifinfo

This is useful information to include in ipv6 netlink messages that
report interface information.  IFLA_OPERSTATE is already included in
ipv4 messages, but missing for ipv6.  This closes that gap.

Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 5dfbac7..5924239 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4706,6 +4706,7 @@ static inline size_t inet6_if_nlmsg_size(void)
               + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
               + nla_total_size(4) /* IFLA_MTU */
               + nla_total_size(4) /* IFLA_LINK */
+              + nla_total_size(1) /* IFLA_OPERSTATE */
               + nla_total_size(inet6_ifla6_size()); /* IFLA_PROTINFO */
 }
 
@@ -4962,7 +4963,9 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
             nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
            nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
            (dev->ifindex != dev_get_iflink(dev) &&
-            nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
+            nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))) ||
+           nla_put_u8(skb, IFLA_OPERSTATE,
+                      netif_running(dev) ? dev->operstate : IF_OPER_DOWN))
                goto nla_put_failure;
        protoinfo = nla_nest_start(skb, IFLA_PROTINFO);
        if (!protoinfo)