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authorSerge E. Hallyn <serue@us.ibm.com>2009-02-26 18:27:38 -0600
committerJames Morris <jmorris@namei.org>2009-02-27 12:35:06 +1100
commit1d1e97562e5e2ac60fb7b25437ba619f95f67fab (patch)
tree68a9c52ecbff0782dd9b9438685afc3b40b6f707 /security/keys/internal.h
parentbe38e0fd5f90a91d09e0a85ffb294b70a7be6259 (diff)
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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.h4
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);
/*