rtnetlink: Honour NLM_F_ECHO flag in rtnl_newlink_create
This patch pass the netlink header message in rtnl_newlink_create() to the new updated rtnl_configure_link(), so that the kernel could reply unicast when userspace set NLM_F_ECHO flag to request the new created interface info. Suggested-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -3312,11 +3312,13 @@ static int rtnl_group_changelink(const struct sk_buff *skb,
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static int rtnl_newlink_create(struct sk_buff *skb, struct ifinfomsg *ifm,
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const struct rtnl_link_ops *ops,
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const struct nlmsghdr *nlh,
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struct nlattr **tb, struct nlattr **data,
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struct netlink_ext_ack *extack)
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{
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unsigned char name_assign_type = NET_NAME_USER;
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struct net *net = sock_net(skb->sk);
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u32 portid = NETLINK_CB(skb).portid;
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struct net *dest_net, *link_net;
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struct net_device *dev;
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char ifname[IFNAMSIZ];
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@ -3370,7 +3372,7 @@ static int rtnl_newlink_create(struct sk_buff *skb, struct ifinfomsg *ifm,
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goto out;
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}
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err = rtnl_configure_link(dev, ifm, 0, NULL);
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err = rtnl_configure_link(dev, ifm, portid, nlh);
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if (err < 0)
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goto out_unregister;
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if (link_net) {
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@ -3579,7 +3581,7 @@ replay:
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return -EOPNOTSUPP;
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}
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return rtnl_newlink_create(skb, ifm, ops, tb, data, extack);
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return rtnl_newlink_create(skb, ifm, ops, nlh, tb, data, extack);
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}
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static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
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