net/hsr: Support iproute print_opt ('ip -details ...')

This implements the rtnl_link_ops fill_info routine for HSR.

Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index b78566f59abaa54528ed86acf85eb7e7b3f305fa..6db460121f84845d4026420cdc2fd12fc4f1497e 100644 (file)
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -488,7 +488,9 @@ enum {
        IFLA_HSR_UNSPEC,
        IFLA_HSR_SLAVE1,
        IFLA_HSR_SLAVE2,
-       IFLA_HSR_MULTICAST_SPEC,
+       IFLA_HSR_MULTICAST_SPEC,        /* Last byte of supervision addr */
+       IFLA_HSR_SUPERVISION_ADDR,      /* Supervision frame multicast addr */
+       IFLA_HSR_SEQ_NR,
        __IFLA_HSR_MAX,
 };
 

diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 5325af85eea670f5c865367fc991eaf9b907cd98..01a5261ac7a5520230fb0d2e147ffd3cf0a930ec 100644 (file)
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -23,6 +23,8 @@ static const struct nla_policy hsr_policy[IFLA_HSR_MAX + 1] = {
        [IFLA_HSR_SLAVE1]               = { .type = NLA_U32 },
        [IFLA_HSR_SLAVE2]               = { .type = NLA_U32 },
        [IFLA_HSR_MULTICAST_SPEC]       = { .type = NLA_U8 },
+       [IFLA_HSR_SUPERVISION_ADDR]     = { .type = NLA_BINARY, .len = ETH_ALEN },
+       [IFLA_HSR_SEQ_NR]               = { .type = NLA_U16 },
 };
 
 
@@ -59,6 +61,31 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
        return hsr_dev_finalize(dev, link, multicast_spec);
 }
 
+static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+       struct hsr_priv *hsr_priv;
+
+       hsr_priv = netdev_priv(dev);
+
+       if (hsr_priv->slave[0])
+               if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr_priv->slave[0]->ifindex))
+                       goto nla_put_failure;
+
+       if (hsr_priv->slave[1])
+               if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr_priv->slave[1]->ifindex))
+                       goto nla_put_failure;
+
+       if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN,
+                   hsr_priv->sup_multicast_addr) ||
+           nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr_priv->sequence_nr))
+               goto nla_put_failure;
+
+       return 0;
+
+nla_put_failure:
+       return -EMSGSIZE;
+}
+
 static struct rtnl_link_ops hsr_link_ops __read_mostly = {
        .kind           = "hsr",
        .maxtype        = IFLA_HSR_MAX,
@@ -66,6 +93,7 @@ static struct rtnl_link_ops hsr_link_ops __read_mostly = {
        .priv_size      = sizeof(struct hsr_priv),
        .setup          = hsr_dev_setup,
        .newlink        = hsr_newlink,
+       .fill_info      = hsr_fill_info,
 };