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| author | Serge E. Hallyn <serue@us.ibm.com> | 2009-02-26 18:27:38 -0600 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-02-27 12:35:06 +1100 |
| commit | 1d1e97562e5e2ac60fb7b25437ba619f95f67fab (patch) | |
| tree | 68a9c52ecbff0782dd9b9438685afc3b40b6f707 /security/keys/internal.h | |
| parent | be38e0fd5f90a91d09e0a85ffb294b70a7be6259 (diff) | |
| download | linux-1d1e97562e5e2ac60fb7b25437ba619f95f67fab.tar.gz linux-1d1e97562e5e2ac60fb7b25437ba619f95f67fab.tar.bz2 linux-1d1e97562e5e2ac60fb7b25437ba619f95f67fab.zip | |
keys: distinguish per-uid keys in different namespaces
per-uid keys were looked by uid only. Use the user namespace
to distinguish the same uid in different namespaces.
This does not address key_permission. So a task can for instance
try to join a keyring owned by the same uid in another namespace.
That will be handled by a separate patch.
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys/internal.h')
| -rw-r--r-- | security/keys/internal.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/security/keys/internal.h b/security/keys/internal.h index 81932abefe7b..9fb679c66b8a 100644 --- a/security/keys/internal.h +++ b/security/keys/internal.h @@ -53,6 +53,7 @@ struct key_user { atomic_t nkeys; /* number of keys */ atomic_t nikeys; /* number of instantiated keys */ uid_t uid; + struct user_namespace *user_ns; int qnkeys; /* number of keys allocated to this user */ int qnbytes; /* number of bytes allocated to this user */ }; @@ -61,7 +62,8 @@ extern struct rb_root key_user_tree; extern spinlock_t key_user_lock; extern struct key_user root_key_user; -extern struct key_user *key_user_lookup(uid_t uid); +extern struct key_user *key_user_lookup(uid_t uid, + struct user_namespace *user_ns); extern void key_user_put(struct key_user *user); /* |