| Message ID | 20181122155031.3495-5-nicolas.dichtel@6wind.com |
|---|---|
| State | Changes Requested, archived |
| Delegated to: | John Linville |
| Headers | show |
| Series | Ease to interpret net-nsid | expand |
On 11/22/18 8:50 AM, Nicolas Dichtel wrote: > Combined with NETNSA_TARGET_NSID, it enables to "translate" a nsid from one > netns to a nsid of another netns. > This is useful when using NETLINK_F_LISTEN_ALL_NSID because it helps the > user to interpret a nsid received from an other netns. > > Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> > --- > net/core/net_namespace.c | 5 +++++ > 1 file changed, 5 insertions(+) > Reviewed-by: David Ahern <dsahern@gmail.com>
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 885c54197e31..dd25fb22ad45 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -797,6 +797,11 @@ static int rtnl_net_getid(struct sk_buff *skb, struct nlmsghdr *nlh, } else if (tb[NETNSA_FD]) { peer = get_net_ns_by_fd(nla_get_u32(tb[NETNSA_FD])); nla = tb[NETNSA_FD]; + } else if (tb[NETNSA_NSID]) { + peer = get_net_ns_by_id(net, nla_get_u32(tb[NETNSA_NSID])); + if (!peer) + peer = ERR_PTR(-ENOENT); + nla = tb[NETNSA_NSID]; } else { NL_SET_ERR_MSG(extack, "Peer netns reference is missing"); return -EINVAL;
Combined with NETNSA_TARGET_NSID, it enables to "translate" a nsid from one netns to a nsid of another netns. This is useful when using NETLINK_F_LISTEN_ALL_NSID because it helps the user to interpret a nsid received from an other netns. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> --- net/core/net_namespace.c | 5 +++++ 1 file changed, 5 insertions(+)