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-rw-r--r--include/net/rtnetlink.h5
-rw-r--r--include/uapi/linux/if_link.h1
-rw-r--r--net/bridge/br_netlink.c59
-rw-r--r--net/core/rtnetlink.c50
4 files changed, 108 insertions, 7 deletions
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 006a7b81d758..4113916cc1bb 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -98,10 +98,11 @@ struct rtnl_link_ops {
const struct net_device *dev,
const struct net_device *slave_dev);
struct net *(*get_link_net)(const struct net_device *dev);
- size_t (*get_linkxstats_size)(const struct net_device *dev);
+ size_t (*get_linkxstats_size)(const struct net_device *dev,
+ int attr);
int (*fill_linkxstats)(struct sk_buff *skb,
const struct net_device *dev,
- int *prividx);
+ int *prividx, int attr);
};
int __rtnl_link_register(struct rtnl_link_ops *ops);
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index bb36bd5675a7..db2458ade81c 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -822,6 +822,7 @@ enum {
IFLA_STATS_UNSPEC, /* also used as 64bit pad attribute */
IFLA_STATS_LINK_64,
IFLA_STATS_LINK_XSTATS,
+ IFLA_STATS_LINK_XSTATS_SLAVE,
__IFLA_STATS_MAX,
};
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 85e89f693589..ed75ff9ff9e6 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1234,7 +1234,7 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
return 0;
}
-static size_t br_get_linkxstats_size(const struct net_device *dev)
+static size_t bridge_get_linkxstats_size(const struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
struct net_bridge_vlan_group *vg;
@@ -1254,8 +1254,30 @@ static size_t br_get_linkxstats_size(const struct net_device *dev)
nla_total_size(0);
}
-static int br_fill_linkxstats(struct sk_buff *skb, const struct net_device *dev,
- int *prividx)
+static size_t brport_get_linkxstats_size(const struct net_device *dev)
+{
+ return nla_total_size(0);
+}
+
+static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
+{
+ size_t retsize = 0;
+
+ switch (attr) {
+ case IFLA_STATS_LINK_XSTATS:
+ retsize = bridge_get_linkxstats_size(dev);
+ break;
+ case IFLA_STATS_LINK_XSTATS_SLAVE:
+ retsize = brport_get_linkxstats_size(dev);
+ break;
+ }
+
+ return retsize;
+}
+
+static int bridge_fill_linkxstats(struct sk_buff *skb,
+ const struct net_device *dev,
+ int *prividx)
{
struct net_bridge *br = netdev_priv(dev);
struct net_bridge_vlan_group *vg;
@@ -1298,6 +1320,37 @@ nla_put_failure:
return -EMSGSIZE;
}
+static int brport_fill_linkxstats(struct sk_buff *skb,
+ const struct net_device *dev,
+ int *prividx)
+{
+ struct nlattr *nest;
+
+ nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
+ if (!nest)
+ return -EMSGSIZE;
+ nla_nest_end(skb, nest);
+
+ return 0;
+}
+
+static int br_fill_linkxstats(struct sk_buff *skb, const struct net_device *dev,
+ int *prividx, int attr)
+{
+ int ret = -EINVAL;
+
+ switch (attr) {
+ case IFLA_STATS_LINK_XSTATS:
+ ret = bridge_fill_linkxstats(skb, dev, prividx);
+ break;
+ case IFLA_STATS_LINK_XSTATS_SLAVE:
+ ret = brport_fill_linkxstats(skb, dev, prividx);
+ break;
+ }
+
+ return ret;
+}
+
static struct rtnl_af_ops br_af_ops __read_mostly = {
.family = AF_BRIDGE,
.get_link_af_size = br_get_link_af_size_filtered,
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index eb49ca24274a..cfed7bc14ee6 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3519,7 +3519,32 @@ static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
if (!attr)
goto nla_put_failure;
- err = ops->fill_linkxstats(skb, dev, prividx);
+ err = ops->fill_linkxstats(skb, dev, prividx, *idxattr);
+ nla_nest_end(skb, attr);
+ if (err)
+ goto nla_put_failure;
+ *idxattr = 0;
+ }
+ }
+
+ if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS_SLAVE,
+ *idxattr)) {
+ const struct rtnl_link_ops *ops = NULL;
+ const struct net_device *master;
+
+ master = netdev_master_upper_dev_get(dev);
+ if (master)
+ ops = master->rtnl_link_ops;
+ if (ops && ops->fill_linkxstats) {
+ int err;
+
+ *idxattr = IFLA_STATS_LINK_XSTATS_SLAVE;
+ attr = nla_nest_start(skb,
+ IFLA_STATS_LINK_XSTATS_SLAVE);
+ if (!attr)
+ goto nla_put_failure;
+
+ err = ops->fill_linkxstats(skb, dev, prividx, *idxattr);
nla_nest_end(skb, attr);
if (err)
goto nla_put_failure;
@@ -3555,14 +3580,35 @@ static size_t if_nlmsg_stats_size(const struct net_device *dev,
if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS, 0)) {
const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
+ int attr = IFLA_STATS_LINK_XSTATS;
if (ops && ops->get_linkxstats_size) {
- size += nla_total_size(ops->get_linkxstats_size(dev));
+ size += nla_total_size(ops->get_linkxstats_size(dev,
+ attr));
/* for IFLA_STATS_LINK_XSTATS */
size += nla_total_size(0);
}
}
+ if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS_SLAVE, 0)) {
+ struct net_device *_dev = (struct net_device *)dev;
+ const struct rtnl_link_ops *ops = NULL;
+ const struct net_device *master;
+
+ /* netdev_master_upper_dev_get can't take const */
+ master = netdev_master_upper_dev_get(_dev);
+ if (master)
+ ops = master->rtnl_link_ops;
+ if (ops && ops->get_linkxstats_size) {
+ int attr = IFLA_STATS_LINK_XSTATS_SLAVE;
+
+ size += nla_total_size(ops->get_linkxstats_size(dev,
+ attr));
+ /* for IFLA_STATS_LINK_XSTATS_SLAVE */
+ size += nla_total_size(0);
+ }
+ }
+
return size;
}