Function report |
Source Code:security\keys\key.c |
Create Date:2022-07-28 18:15:20 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:Get the key quota record for a user, allocating a new record if one doesn't* already exist.
Proto:struct key_user *key_user_lookup(kuid_t uid)
Type:struct key_user
Parameter:
Type | Parameter | Name |
---|---|---|
kuid_t | uid |
55 | try_again : |
56 | parent = NULL |
58 | spin_lock( & key_user_lock) |
69 | Else Go to found |
74 | If Not candidate Then |
77 | spin_unlock( & key_user_lock) |
79 | user = NULL |
81 | If Value for the false possibility is greater at compile time(!candidate) Then Go to out |
87 | Go to try_again |
93 | atomic_set( & umber of keys , 0) |
94 | atomic_set( & umber of instantiated keys , 0) |
101 | rb_link_node( & node, parent, p) |
102 | rb_insert_color( & node, & ree of quota records indexed by UID ) |
103 | spin_unlock( & key_user_lock) |
105 | Go to out |
108 | found : |
110 | spin_unlock( & key_user_lock) |
112 | out : |
113 | Return user |
Name | Describe |
---|---|
key_alloc | key_alloc - Allocate a key of the specified type.*@type: The type of key to allocate.*@desc: The key description to allow the key to be searched out.*@uid: The owner of the new key.*@gid: The group ID for the new key's group permissions. |
keyctl_chown_key | Change the ownership of a key* The key must grant the caller Setattr permission for this to work, though* the key need not be fully instantiated yet. For the UID to be changed, or* for the GID to be changed to a group the caller is not a member of, the |
construct_key_and_link | Commence key construction. |
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