diff options
| author | Andrey Vagin <avagin@openvz.org> | 2016-10-24 18:29:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-31 10:56:36 -0400 |
| commit | c62cce2caee558e18aa05c01c2fd3b40f07174f2 (patch) | |
| tree | f652d443eb8394c24772bcee4cf15f3a1a6586f1 /fs/nsfs.c | |
| parent | 2a43ca0aa9084c41aaa1006fbf22155b2e94babf (diff) | |
| download | lwn-c62cce2caee558e18aa05c01c2fd3b40f07174f2.tar.gz lwn-c62cce2caee558e18aa05c01c2fd3b40f07174f2.zip | |
net: add an ioctl to get a socket network namespace
Each socket operates in a network namespace where it has been created,
so if we want to dump and restore a socket, we have to know its network
namespace.
We have a socket_diag to get information about sockets, it doesn't
report sockets which are not bound or connected.
This patch introduces a new socket ioctl, which is called SIOCGSKNS
and used to get a file descriptor for a socket network namespace.
A task must have CAP_NET_ADMIN in a target network namespace to
use this ioctl.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/nsfs.c')
| -rw-r--r-- | fs/nsfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nsfs.c b/fs/nsfs.c index 8718af895eab..8c9fb29c6673 100644 --- a/fs/nsfs.c +++ b/fs/nsfs.c @@ -118,7 +118,7 @@ again: return ret; } -static int open_related_ns(struct ns_common *ns, +int open_related_ns(struct ns_common *ns, struct ns_common *(*get_ns)(struct ns_common *ns)) { struct path path = {}; |