diff options
Diffstat (limited to 'security/keys/key.c')
| -rw-r--r-- | security/keys/key.c | 80 |
1 files changed, 20 insertions, 60 deletions
diff --git a/security/keys/key.c b/security/keys/key.c index c1eac8084ad..3a92d736587 100644 --- a/security/keys/key.c +++ b/security/keys/key.c @@ -56,7 +56,6 @@ void __key_check(const struct key *key) } #endif -/*****************************************************************************/ /* * get the key quota record for a user, allocating a new record if one doesn't * already exist @@ -130,10 +129,8 @@ struct key_user *key_user_lookup(uid_t uid, struct user_namespace *user_ns) kfree(candidate); out: return user; +} -} /* end key_user_lookup() */ - -/*****************************************************************************/ /* * dispose of a user structure */ @@ -146,10 +143,8 @@ void key_user_put(struct key_user *user) kfree(user); } +} -} /* end key_user_put() */ - -/*****************************************************************************/ /* * assign a key the next unique serial number * - these are assigned randomly to avoid security issues through covert @@ -211,10 +206,8 @@ serial_exists: if (key->serial < xkey->serial) goto attempt_insertion; } +} -} /* end key_alloc_serial() */ - -/*****************************************************************************/ /* * allocate a key of the specified type * - update the user's quota to reflect the existence of the key @@ -344,12 +337,10 @@ no_quota: key_user_put(user); key = ERR_PTR(-EDQUOT); goto error; - -} /* end key_alloc() */ +} EXPORT_SYMBOL(key_alloc); -/*****************************************************************************/ /* * reserve an amount of quota for the key's payload */ @@ -384,12 +375,10 @@ int key_payload_reserve(struct key *key, size_t datalen) key->datalen = datalen; return ret; - -} /* end key_payload_reserve() */ +} EXPORT_SYMBOL(key_payload_reserve); -/*****************************************************************************/ /* * instantiate a key and link it into the target keyring atomically * - called with the target keyring's semaphore writelocked @@ -441,10 +430,8 @@ static int __key_instantiate_and_link(struct key *key, wake_up_bit(&key->flags, KEY_FLAG_USER_CONSTRUCT); return ret; +} -} /* end __key_instantiate_and_link() */ - -/*****************************************************************************/ /* * instantiate a key and link it into the target keyring atomically */ @@ -471,12 +458,10 @@ int key_instantiate_and_link(struct key *key, __key_link_end(keyring, key->type, prealloc); return ret; - -} /* end key_instantiate_and_link() */ +} EXPORT_SYMBOL(key_instantiate_and_link); -/*****************************************************************************/ /* * negatively instantiate a key and link it into the target keyring atomically */ @@ -535,12 +520,10 @@ int key_negate_and_link(struct key *key, wake_up_bit(&key->flags, KEY_FLAG_USER_CONSTRUCT); return ret == 0 ? link_ret : ret; - -} /* end key_negate_and_link() */ +} EXPORT_SYMBOL(key_negate_and_link); -/*****************************************************************************/ /* * do cleaning up in process context so that we don't have to disable * interrupts all over the place @@ -601,10 +584,8 @@ static void key_cleanup(struct work_struct *work) /* there may, of course, be more than one key to destroy */ goto go_again; +} -} /* end key_cleanup() */ - -/*****************************************************************************/ /* * dispose of a reference to a key * - when all the references are gone, we schedule the cleanup task to come and @@ -618,12 +599,10 @@ void key_put(struct key *key) if (atomic_dec_and_test(&key->usage)) schedule_work(&key_cleanup_task); } - -} /* end key_put() */ +} EXPORT_SYMBOL(key_put); -/*****************************************************************************/ /* * find a key by its serial number */ @@ -664,10 +643,8 @@ struct key *key_lookup(key_serial_t id) error: spin_unlock(&key_serial_lock); return key; +} -} /* end key_lookup() */ - -/*****************************************************************************/ /* * find and lock the specified key type against removal * - we return with the sem readlocked @@ -690,20 +667,16 @@ struct key_type *key_type_lookup(const char *type) found_kernel_type: return ktype; +} -} /* end key_type_lookup() */ - -/*****************************************************************************/ /* * unlock a key type */ void key_type_put(struct key_type *ktype) { up_read(&key_types_sem); +} -} /* end key_type_put() */ - -/*****************************************************************************/ /* * attempt to update an existing key * - the key has an incremented refcount @@ -742,10 +715,8 @@ error: key_put(key); key_ref = ERR_PTR(ret); goto out; +} -} /* end __key_update() */ - -/*****************************************************************************/ /* * search the specified keyring for a key of the same description; if one is * found, update it, otherwise add a new one @@ -855,12 +826,10 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref, key_ref = __key_update(key_ref, payload, plen); goto error; - -} /* end key_create_or_update() */ +} EXPORT_SYMBOL(key_create_or_update); -/*****************************************************************************/ /* * update a key */ @@ -891,12 +860,10 @@ int key_update(key_ref_t key_ref, const void *payload, size_t plen) error: return ret; - -} /* end key_update() */ +} EXPORT_SYMBOL(key_update); -/*****************************************************************************/ /* * revoke a key */ @@ -926,12 +893,10 @@ void key_revoke(struct key *key) } up_write(&key->sem); - -} /* end key_revoke() */ +} EXPORT_SYMBOL(key_revoke); -/*****************************************************************************/ /* * register a type of key */ @@ -956,12 +921,10 @@ int register_key_type(struct key_type *ktype) out: up_write(&key_types_sem); return ret; - -} /* end register_key_type() */ +} EXPORT_SYMBOL(register_key_type); -/*****************************************************************************/ /* * unregister a type of key */ @@ -1010,12 +973,10 @@ void unregister_key_type(struct key_type *ktype) up_write(&key_types_sem); key_schedule_gc(0); - -} /* end unregister_key_type() */ +} EXPORT_SYMBOL(unregister_key_type); -/*****************************************************************************/ /* * initialise the key management stuff */ @@ -1037,5 +998,4 @@ void __init key_init(void) rb_insert_color(&root_key_user.node, &key_user_tree); - -} /* end key_init() */ +} |