This corresponds exactly to IFLA_NET_NS_PID except it takes a nsid parameter
instead of a pid.
---
include/linux/if_link.h | 1 +
net/core/rtnetlink.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index f9032c8..9e473eb 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -80,6 +80,7 @@ enum
#define IFLA_LINKINFO IFLA_LINKINFO
IFLA_NET_NS_PID,
IFLA_IFALIAS,
+ IFLA_NET_NS,
__IFLA_MAX
};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 31f29d2..3e90c0b 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -718,6 +718,7 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_LINKINFO] = { .type = NLA_NESTED },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
[IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
+ [IFLA_NET_NS] = { .type = NLA_U32 },
};
static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
@@ -779,6 +780,21 @@ static int do_setlink(struct net_device *dev, struct
ifinfomsg *ifm,
modified = 1;
}
+ if (tb[IFLA_NET_NS]) {
+ struct net *net;
+
+ net = __get_net_ns_by_id(nla_get_u32(tb[IFLA_NET_NS]));
+ if (net == NULL) {
+ err = -EINVAL;
+ goto errout;
+ }
+ err = dev_change_net_namespace(dev, net, ifname);
+ put_net(net);
+ if (err)
+ goto errout;
+ modified = 1;
+ }
+
if (tb[IFLA_MAP]) {
struct rtnl_link_ifmap *u_map;
struct ifmap k_map;
--
1.5.4.4
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