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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-05-24 17:56:43 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-08-14 21:49:56 -0700 |
| commit | c336d148adc4181f31741ae066df41429be64b67 (patch) | |
| tree | b1393fa0bd2782c4f41f14c6d1d4390b480057cf | |
| parent | 3fbc290540a1ed1a8a076ed8f53bee7a38a9f408 (diff) | |
| download | linux-c336d148adc4181f31741ae066df41429be64b67.tar.bz2 | |
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: David S. Miller <davem@davemloft.net>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
| -rw-r--r-- | include/net/sock.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 65c3d62bfa5a..9d43736a869d 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -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 { SOCK_DEAD, |