[PATCH 4.9 049/102] hsr: set .netnsok flag

From: Greg Kroah-Hartman
Date: Wed Apr 01 2020 - 12:51:55 EST


From: Taehee Yoo <ap420073@xxxxxxxxx>

[ Upstream commit 09e91dbea0aa32be02d8877bd50490813de56b9a ]

The hsr module has been supporting the list and status command.
(HSR_C_GET_NODE_LIST and HSR_C_GET_NODE_STATUS)
These commands send node information to the user-space via generic netlink.
But, in the non-init_net namespace, these commands are not allowed
because .netnsok flag is false.
So, there is no way to get node information in the non-init_net namespace.

Fixes: f421436a591d ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: Taehee Yoo <ap420073@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/hsr/hsr_netlink.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -137,6 +137,7 @@ static struct genl_family hsr_genl_famil
.name = "HSR",
.version = 1,
.maxattr = HSR_A_MAX,
+ .netnsok = true,
};

static const struct genl_multicast_group hsr_mcgrps[] = {