Commit c336d148 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

userns: Implement sk_user_ns

Add a helper sk_user_ns to make it easy to find the user namespace
of the process that opened a socket.

Acked-by: default avatarDavid S. Miller <>
Acked-by: default avatarSerge Hallyn <>
Signed-off-by: default avatarEric W. Biederman <>
parent 3fbc2905
......@@ -604,6 +604,15 @@ static inline void sk_add_bind_node(struct sock *sk,
#define sk_for_each_bound(__sk, node, list) \
hlist_for_each_entry(__sk, node, list, sk_bind_node)
static inline struct user_namespace *sk_user_ns(struct sock *sk)
/* Careful only use this in a context where these parameters
* can not change and must all be valid, such as recvmsg from
* userspace.
return sk->sk_socket->file->f_cred->user_ns;
/* Sock flags */
enum sock_flags {
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