| Function report | 
| Source Code: fs\crypto\keyring.c | Create Date:2022-07-28 20:23:52 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
| home page | Tree | 
| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:Find the specified master key in ->s_master_keys.* Returns ERR_PTR(-ENOKEY) if not found.
Proto:struct key *fscrypt_find_master_key(struct super_block *sb, const struct fscrypt_key_specifier *mk_spec)
Type:struct key
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct super_block * | sb | |
| const struct fscrypt_key_specifier * | mk_spec | 
| 236 | keyring = READ_ONCE(s_master_keys) | 
| 241 | Return Search ->s_master_keys or ->mk_users | 
| Name | Describe | 
|---|---|
| add_master_key | |
| fscrypt_verify_key_added | Verify that the current user has added a master key with the given identifier* (returns -ENOKEY if not) | 
| do_remove_key | Try to remove an fscrypt master encryption key | 
| fscrypt_ioctl_get_key_status | Retrieve the status of an fscrypt master encryption key | 
| setup_file_encryption_key | Find the master key, then set up the inode's actual encryption key.* If the master key is found in the filesystem-level keyring, then the* corresponding 'struct key' is returned in *master_key_ret with* ->mk_secret_sem read-locked | 
| Source code conversion tool public plug-in interface | X | 
|---|---|
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