函数逻辑报告

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v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\crypto\keysetup_v1.c Create Date:2022-07-29 10:57:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：fscrypt_setup_v1_file_key_via_subscribed_keyrings

函数原型：int fscrypt_setup_v1_file_key_via_subscribed_keyrings(struct fscrypt_info *ci)

返回类型：int

参数：

类型参数名称
struct fscrypt_info *ci
321  key等于Search the current task's subscribed keyrings for a "logon" key with* description prefix:descriptor, and if found acquire a read lock on it and* return a pointer to its validated payload in *payload_ret.
324  如果key恒等于错误号且key_prefix则
325  key等于Search the current task's subscribed keyrings for a "logon" key with* description prefix:descriptor, and if found acquire a read lock on it and* return a pointer to its validated payload in *payload_ret.
329  如果是错误则返回:错误
332  err等于fscrypt_setup_v1_file_key(ci, raw)
333  lease a read lock
334  key_put(key)
335  返回:err