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 19:53:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Check already instantiated keys aren't going to be a problem.* The caller must have called __key_link_begin(). Don't need to call this for* keys that were created since __key_link_begin() was called.

函数原型：int __key_link_check_live_key(struct key *keyring, struct key *key)

返回类型：int

参数：

类型参数名称
struct key *keyring
struct key *key
1354  如果 type of key 恒等于key_type_keyring则返回:See if a cycle will will be created by inserting acyclic tree B in acyclic* tree A at the topmost level (ie: as a direct child of A).* Since we are adding B to A at the top level, checking for cycles should just
1358  返回:0
调用者
名称描述
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().