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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */

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/* keyctl.h: keyctl command IDs

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* Written by David Howells (dhowells@redhat.com)

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* This program is free software; you can redistribute it and/or

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* modify it under the terms of the GNU General Public License

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* as published by the Free Software Foundation; either version

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* 2 of the License, or (at your option) any later version.

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#ifndef _LINUX_KEYCTL_H

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#define _LINUX_KEYCTL_H

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#include <linux/types.h>

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/* special process keyring shortcut IDs */

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#define KEY_SPEC_THREAD_KEYRING -1 /* - key ID for thread-specific keyring */

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#define KEY_SPEC_PROCESS_KEYRING -2 /* - key ID for process-specific keyring */

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#define KEY_SPEC_SESSION_KEYRING -3 /* - key ID for session-specific keyring */

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#define KEY_SPEC_USER_KEYRING -4 /* - key ID for UID-specific keyring */

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#define KEY_SPEC_USER_SESSION_KEYRING -5 /* - key ID for UID-session keyring */

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#define KEY_SPEC_GROUP_KEYRING -6 /* - key ID for GID-specific keyring */

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#define KEY_SPEC_REQKEY_AUTH_KEY -7 /* - key ID for assumed request_key auth key */

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#define KEY_SPEC_REQUESTOR_KEYRING -8 /* - key ID for request_key() dest keyring */

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/* request-key default keyrings */

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#define KEY_REQKEY_DEFL_NO_CHANGE -1

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#define KEY_REQKEY_DEFL_DEFAULT 0

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#define KEY_REQKEY_DEFL_THREAD_KEYRING 1

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#define KEY_REQKEY_DEFL_PROCESS_KEYRING 2

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#define KEY_REQKEY_DEFL_SESSION_KEYRING 3

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#define KEY_REQKEY_DEFL_USER_KEYRING 4

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#define KEY_REQKEY_DEFL_USER_SESSION_KEYRING 5

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#define KEY_REQKEY_DEFL_GROUP_KEYRING 6

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#define KEY_REQKEY_DEFL_REQUESTOR_KEYRING 7

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/* keyctl commands */

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#define KEYCTL_GET_KEYRING_ID 0 /* ask for a keyring's ID */

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#define KEYCTL_JOIN_SESSION_KEYRING 1 /* join or start named session keyring */

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#define KEYCTL_UPDATE 2 /* update a key */

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#define KEYCTL_REVOKE 3 /* revoke a key */

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#define KEYCTL_CHOWN 4 /* set ownership of a key */

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#define KEYCTL_SETPERM 5 /* set perms on a key */

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#define KEYCTL_DESCRIBE 6 /* describe a key */

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#define KEYCTL_CLEAR 7 /* clear contents of a keyring */

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#define KEYCTL_LINK 8 /* link a key into a keyring */

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#define KEYCTL_UNLINK 9 /* unlink a key from a keyring */

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#define KEYCTL_SEARCH 10 /* search for a key in a keyring */

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#define KEYCTL_READ 11 /* read a key or keyring's contents */

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#define KEYCTL_INSTANTIATE 12 /* instantiate a partially constructed key */

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#define KEYCTL_NEGATE 13 /* negate a partially constructed key */

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#define KEYCTL_SET_REQKEY_KEYRING 14 /* set default request-key keyring */

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#define KEYCTL_SET_TIMEOUT 15 /* set key timeout */

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#define KEYCTL_ASSUME_AUTHORITY 16 /* assume request_key() authorisation */

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#define KEYCTL_GET_SECURITY 17 /* get key security label */

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#define KEYCTL_SESSION_TO_PARENT 18 /* apply session keyring to parent process */

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#define KEYCTL_REJECT 19 /* reject a partially constructed key */

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#define KEYCTL_INSTANTIATE_IOV 20 /* instantiate a partially constructed key */

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#define KEYCTL_INVALIDATE 21 /* invalidate a key */

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#define KEYCTL_GET_PERSISTENT 22 /* get a user's persistent keyring */

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#define KEYCTL_DH_COMPUTE 23 /* Compute Diffie-Hellman values */

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#define KEYCTL_RESTRICT_KEYRING 29 /* Restrict keys allowed to link to a keyring */

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/* keyctl structures */

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struct keyctl_dh_params {

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__s32 private;

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__s32 prime;

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__s32 base;

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};

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struct keyctl_kdf_params {

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char *hashname;

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char *otherinfo;

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__u32 otherinfolen;

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__u32 __spare[8];

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};

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#endif /* _LINUX_KEYCTL_H */

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