diff options
| author | Hangbin Liu <liuhangbin@gmail.com> | 2022-10-28 04:42:24 -0400 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-31 18:10:21 -0700 |
| commit | f3a63cce1b4fbde7738395c5a2dea83f05de3407 (patch) | |
| tree | 62f71cd0a3b2a40a6592a5702d9f77610d63eeb9 /net/core/rtnetlink.c | |
| parent | d88e136cab37d6a5aa3691a2f636d37bd6520cc2 (diff) | |
rtnetlink: Honour NLM_F_ECHO flag in rtnl_delete_link
This patch use the new helper unregister_netdevice_many_notify() for
rtnl_delete_link(), so that the kernel could reply unicast when userspace
set NLM_F_ECHO flag to request the new created interface info.
At the same time, the parameters of rtnl_delete_link() need to be updated
since we need nlmsghdr and portid 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>
Diffstat (limited to 'net/core/rtnetlink.c')
| -rw-r--r-- | net/core/rtnetlink.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 839ff8b7eadc..d2f27548fc0b 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -3110,7 +3110,7 @@ static int rtnl_group_dellink(const struct net *net, int group) return 0; } -int rtnl_delete_link(struct net_device *dev) +int rtnl_delete_link(struct net_device *dev, u32 portid, const struct nlmsghdr *nlh) { const struct rtnl_link_ops *ops; LIST_HEAD(list_kill); @@ -3120,7 +3120,7 @@ int rtnl_delete_link(struct net_device *dev) return -EOPNOTSUPP; ops->dellink(dev, &list_kill); - unregister_netdevice_many(&list_kill); + unregister_netdevice_many_notify(&list_kill, portid, nlh); return 0; } @@ -3130,6 +3130,7 @@ static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { struct net *net = sock_net(skb->sk); + u32 portid = NETLINK_CB(skb).portid; struct net *tgt_net = net; struct net_device *dev = NULL; struct ifinfomsg *ifm; @@ -3171,7 +3172,7 @@ static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, goto out; } - err = rtnl_delete_link(dev); + err = rtnl_delete_link(dev, portid, nlh); out: if (netnsid >= 0) |