[PATCH net 1/2] net: advertise 'netns local' property via netlink
From: Nicolas Dichtel <hidden>
Date: 2025-02-06 16:51:39
Also in:
stable
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Since the below commit, there is no way to see if the netns_local property
is set on a device. Let's add a netlink attribute to advertise it.
CC: stable@vger.kernel.org
Fixes: 05c1280a2bcf ("netdev_features: convert NETIF_F_NETNS_LOCAL to dev->netns_local")
Signed-off-by: Nicolas Dichtel <redacted>
---
include/uapi/linux/if_link.h | 1 +
net/core/rtnetlink.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index bfe880fbbb24..ed4a64e1c8f1 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h@@ -378,6 +378,7 @@ enum { IFLA_GRO_IPV4_MAX_SIZE, IFLA_DPLL_PIN, IFLA_MAX_PACING_OFFLOAD_HORIZON, + IFLA_NETNS_LOCAL, __IFLA_MAX };
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d1e559fce918..5032e65b8faa 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c@@ -1287,6 +1287,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev, + nla_total_size(4) /* IFLA_TSO_MAX_SEGS */ + nla_total_size(1) /* IFLA_OPERSTATE */ + nla_total_size(1) /* IFLA_LINKMODE */ + + nla_total_size(1) /* IFLA_NETNS_LOCAL */ + nla_total_size(4) /* IFLA_CARRIER_CHANGES */ + nla_total_size(4) /* IFLA_LINK_NETNSID */ + nla_total_size(4) /* IFLA_GROUP */
@@ -2041,6 +2042,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, netif_running(dev) ? READ_ONCE(dev->operstate) : IF_OPER_DOWN) || nla_put_u8(skb, IFLA_LINKMODE, READ_ONCE(dev->link_mode)) || + nla_put_u8(skb, IFLA_NETNS_LOCAL, dev->netns_local) || nla_put_u32(skb, IFLA_MTU, READ_ONCE(dev->mtu)) || nla_put_u32(skb, IFLA_MIN_MTU, READ_ONCE(dev->min_mtu)) || nla_put_u32(skb, IFLA_MAX_MTU, READ_ONCE(dev->max_mtu)) ||
@@ -2229,6 +2231,7 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = { [IFLA_ALLMULTI] = { .type = NLA_REJECT }, [IFLA_GSO_IPV4_MAX_SIZE] = NLA_POLICY_MIN(NLA_U32, MAX_TCP_HEADER + 1), [IFLA_GRO_IPV4_MAX_SIZE] = { .type = NLA_U32 }, + [IFLA_NETNS_LOCAL] = { .type = NLA_U8 }, }; static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
--
2.47.1