1KEYCTL_SET_REQKEY_KEYRING(3L)inux Key Management CallKsEYCTL_SET_REQKEY_KEYRING(3)
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6 keyctl_set_reqkey_keyring - set the implicit destination keyring
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9 #include <keyutils.h>
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11 long keyctl_set_reqkey_keyring(int reqkey_defl);
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14 keyctl_set_reqkey_keyring() sets the default destination for implicit
15 key requests for the current thread and returns the old setting.
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17 After this operation has been issued, keys acquired by implicit key
18 requests, such as might be performed by open() on an AFS or NFS
19 filesystem, will be linked by default to the specified keyring by this
20 function.
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22 The valid values of reqkey_defl are:
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24 KEY_REQKEY_DEFL_NO_CHANGE
25 This makes no change to the current setting.
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27 KEY_REQKEY_DEFL_THREAD_KEYRING
28 This makes the thread-specific keyring the default destination.
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30 KEY_REQKEY_DEFL_PROCESS_KEYRING
31 This makes the process-specific keyring the default destination.
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33 KEY_REQKEY_DEFL_SESSION_KEYRING
34 This makes the session keyring the default destination.
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36 KEY_REQKEY_DEFL_USER_KEYRING
37 This makes the UID-specific keyring the default destination.
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39 KEY_REQKEY_DEFL_USER_SESSION_KEYRING
40 This makes the UID-specific session keyring the default destina‐
41 tion.
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43 KEY_REQKEY_DEFL_DEFAULT
44 This selects the default behaviour which is to use the thread-
45 specific keyring if there is one, otherwise the process-specific
46 keyring if there is one, otherwise the session keyring if there
47 is one, otherwise the UID-specific session keyring.
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49 This setting is inherited across fork() and exec().
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53 On success keyctl_set_reqkey_keyring() returns 0. On error, the value
54 -1 will be returned and errno will have been set to an appropriate
55 error.
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58 EINVAL The value of reqkey_defl is invalid.
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61 This is a library function that can be found in libkeyutils. When
62 linking, -lkeyutils should be specified to the linker.
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65 keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3),
66 keyutils(7), keyrings(7), request-key(8)
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70Linux 4 May 2006 KEYCTL_SET_REQKEY_KEYRING(3)