函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\keys\keyring.c Create Date:2022-07-27 19:53:09
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Finish linking a key into to a keyring.* Must be called with __key_link_begin() having being called.

函数原型：void __key_link_end(struct key *keyring, const struct keyring_index_key *index_key, struct assoc_array_edit *edit)__releases(&keyring->sem) __releases(&keyring_serialise_link_lock)

返回类型：void

参数：

类型参数名称
struct key *keyring
const struct keyring_index_key *index_key
struct assoc_array_edit *edit
1388  BUG_ON(type == NULL)
1389  kenter("%d,%s,", key serial number , name)
1391  如果edit则
1392  如果非dead_leaf则
1393  key_payload_reserve - Adjust data quota reservation for the key's payload*@key: The key to make the reservation for
1396  assoc_array_cancel_edit - Discard an edit script
1398  lease a write lock
1400  如果type恒等于key_type_keyring则mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
调用者
名称描述
key_reject_and_linkkey_reject_and_link - Negatively instantiate a key and link it into the keyring.*@key: The key to instantiate.*@timeout: The timeout on the negative key.*@error: The error to return when the key is hit.
key_create_or_updatekey_create_or_update - Update or create and instantiate a key.*@keyring_ref: A pointer to the destination keyring with possession flag.*@type: The type of key.*@description: The searchable description for the key.
key_linkkey_link - Link a key to a keyring*@keyring: The keyring to make the link in
key_movekey_move - Move a key from one keyring to another*@key: The key to move*@from_keyring: The keyring to remove the link from
construct_alloc_keyAllocate a new key in under-construction state and attempt to link it in to* the requested keyring.* May return a key that's already under construction instead if there was a* race between two thread calling request_key().
key_instantiate_and_linkkey_instantiate_and_link - Instantiate a key and link it into the keyring.*@key: The key to instantiate.*@data: The data to use to instantiate the keyring.*@datalen: The length of @data.*@keyring: Keyring to create a link in on success (or NULL).