/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* keyctl.h: keyctl command IDs * * Copyright (C) 2004, 2008 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version.
*/
#ifndef _LINUX_KEYCTL_H #define _LINUX_KEYCTL_H
#include <linux/types.h>
/* special process keyring shortcut IDs */ #define KEY_SPEC_THREAD_KEYRING -1/* - key ID for thread-specific keyring */ #define KEY_SPEC_PROCESS_KEYRING -2/* - key ID for process-specific keyring */ #define KEY_SPEC_SESSION_KEYRING -3/* - key ID for session-specific keyring */ #define KEY_SPEC_USER_KEYRING -4/* - key ID for UID-specific keyring */ #define KEY_SPEC_USER_SESSION_KEYRING -5/* - key ID for UID-session keyring */ #define KEY_SPEC_GROUP_KEYRING -6/* - key ID for GID-specific keyring */ #define KEY_SPEC_REQKEY_AUTH_KEY -7/* - key ID for assumed request_key auth key */ #define KEY_SPEC_REQUESTOR_KEYRING -8/* - key ID for request_key() dest keyring */
/* keyctl commands */ #define KEYCTL_GET_KEYRING_ID 0/* ask for a keyring's ID */ #define KEYCTL_JOIN_SESSION_KEYRING 1/* join or start named session keyring */ #define KEYCTL_UPDATE 2/* update a key */ #define KEYCTL_REVOKE 3/* revoke a key */ #define KEYCTL_CHOWN 4/* set ownership of a key */ #define KEYCTL_SETPERM 5/* set perms on a key */ #define KEYCTL_DESCRIBE 6/* describe a key */ #define KEYCTL_CLEAR 7/* clear contents of a keyring */ #define KEYCTL_LINK 8/* link a key into a keyring */ #define KEYCTL_UNLINK 9/* unlink a key from a keyring */ #define KEYCTL_SEARCH 10/* search for a key in a keyring */ #define KEYCTL_READ 11/* read a key or keyring's contents */ #define KEYCTL_INSTANTIATE 12/* instantiate a partially constructed key */ #define KEYCTL_NEGATE 13/* negate a partially constructed key */ #define KEYCTL_SET_REQKEY_KEYRING 14/* set default request-key keyring */ #define KEYCTL_SET_TIMEOUT 15/* set key timeout */ #define KEYCTL_ASSUME_AUTHORITY 16/* assume request_key() authorisation */ #define KEYCTL_GET_SECURITY 17/* get key security label */ #define KEYCTL_SESSION_TO_PARENT 18/* apply session keyring to parent process */ #define KEYCTL_REJECT 19/* reject a partially constructed key */ #define KEYCTL_INSTANTIATE_IOV 20/* instantiate a partially constructed key */ #define KEYCTL_INVALIDATE 21/* invalidate a key */ #define KEYCTL_GET_PERSISTENT 22/* get a user's persistent keyring */ #define KEYCTL_DH_COMPUTE 23/* Compute Diffie-Hellman values */ #define KEYCTL_PKEY_QUERY 24/* Query public key parameters */ #define KEYCTL_PKEY_ENCRYPT 25/* Encrypt a blob using a public key */ #define KEYCTL_PKEY_DECRYPT 26/* Decrypt a blob using a public key */ #define KEYCTL_PKEY_SIGN 27/* Create a public key signature */ #define KEYCTL_PKEY_VERIFY 28/* Verify a public key signature */ #define KEYCTL_RESTRICT_KEYRING 29/* Restrict keys allowed to link to a keyring */ #define KEYCTL_MOVE 30/* Move keys between keyrings */ #define KEYCTL_CAPABILITIES 31/* Find capabilities of keyrings subsystem */ #define KEYCTL_WATCH_KEY 32/* Watch a key or ring of keys for changes */
struct keyctl_pkey_query {
__u32 supported_ops; /* Which ops are supported */
__u32 key_size; /* Size of the key in bits */
__u16 max_data_size; /* Maximum size of raw data to sign in bytes */
__u16 max_sig_size; /* Maximum size of signature in bytes */
__u16 max_enc_size; /* Maximum size of encrypted blob in bytes */
__u16 max_dec_size; /* Maximum size of decrypted blob in bytes */
__u32 __spare[10];
};
struct keyctl_pkey_params {
__s32 key_id; /* Serial no. of public key to use */
__u32 in_len; /* Input data size */ union {
__u32 out_len; /* Output buffer size (encrypt/decrypt/sign) */
__u32 in2_len; /* 2nd input data size (verify) */
};
__u32 __spare[7];
};
#define KEYCTL_MOVE_EXCL 0x00000001 /* Do not displace from the to-keyring */
/* * Capabilities flags. The capabilities list is an array of 8-bit integers; * each integer can carry up to 8 flags.
*/ #define KEYCTL_CAPS0_CAPABILITIES 0x01 /* KEYCTL_CAPABILITIES supported */ #define KEYCTL_CAPS0_PERSISTENT_KEYRINGS 0x02 /* Persistent keyrings enabled */ #define KEYCTL_CAPS0_DIFFIE_HELLMAN 0x04 /* Diffie-Hellman computation enabled */ #define KEYCTL_CAPS0_PUBLIC_KEY 0x08 /* Public key ops enabled */ #define KEYCTL_CAPS0_BIG_KEY 0x10 /* big_key-type enabled */ #define KEYCTL_CAPS0_INVALIDATE 0x20 /* KEYCTL_INVALIDATE supported */ #define KEYCTL_CAPS0_RESTRICT_KEYRING 0x40 /* KEYCTL_RESTRICT_KEYRING supported */ #define KEYCTL_CAPS0_MOVE 0x80 /* KEYCTL_MOVE supported */ #define KEYCTL_CAPS1_NS_KEYRING_NAME 0x01 /* Keyring names are per-user_namespace */ #define KEYCTL_CAPS1_NS_KEY_TAG 0x02 /* Key indexing can include a namespace tag */ #define KEYCTL_CAPS1_NOTIFICATIONS 0x04 /* Keys generate watchable notifications */
#endif/* _LINUX_KEYCTL_H */
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