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brintos / linux-shallow public Read only

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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */2/* keyctl.h: keyctl command IDs3 *4 * Copyright (C) 2004, 2008 Red Hat, Inc. All Rights Reserved.5 * Written by David Howells (dhowells@redhat.com)6 *7 * This program is free software; you can redistribute it and/or8 * modify it under the terms of the GNU General Public License9 * as published by the Free Software Foundation; either version10 * 2 of the License, or (at your option) any later version.11 */12 13#ifndef _LINUX_KEYCTL_H14#define _LINUX_KEYCTL_H15 16#include <linux/types.h>17 18/* special process keyring shortcut IDs */19#define KEY_SPEC_THREAD_KEYRING		-1	/* - key ID for thread-specific keyring */20#define KEY_SPEC_PROCESS_KEYRING	-2	/* - key ID for process-specific keyring */21#define KEY_SPEC_SESSION_KEYRING	-3	/* - key ID for session-specific keyring */22#define KEY_SPEC_USER_KEYRING		-4	/* - key ID for UID-specific keyring */23#define KEY_SPEC_USER_SESSION_KEYRING	-5	/* - key ID for UID-session keyring */24#define KEY_SPEC_GROUP_KEYRING		-6	/* - key ID for GID-specific keyring */25#define KEY_SPEC_REQKEY_AUTH_KEY	-7	/* - key ID for assumed request_key auth key */26#define KEY_SPEC_REQUESTOR_KEYRING	-8	/* - key ID for request_key() dest keyring */27 28/* request-key default keyrings */29#define KEY_REQKEY_DEFL_NO_CHANGE		-130#define KEY_REQKEY_DEFL_DEFAULT			031#define KEY_REQKEY_DEFL_THREAD_KEYRING		132#define KEY_REQKEY_DEFL_PROCESS_KEYRING		233#define KEY_REQKEY_DEFL_SESSION_KEYRING		334#define KEY_REQKEY_DEFL_USER_KEYRING		435#define KEY_REQKEY_DEFL_USER_SESSION_KEYRING	536#define KEY_REQKEY_DEFL_GROUP_KEYRING		637#define KEY_REQKEY_DEFL_REQUESTOR_KEYRING	738 39/* keyctl commands */40#define KEYCTL_GET_KEYRING_ID		0	/* ask for a keyring's ID */41#define KEYCTL_JOIN_SESSION_KEYRING	1	/* join or start named session keyring */42#define KEYCTL_UPDATE			2	/* update a key */43#define KEYCTL_REVOKE			3	/* revoke a key */44#define KEYCTL_CHOWN			4	/* set ownership of a key */45#define KEYCTL_SETPERM			5	/* set perms on a key */46#define KEYCTL_DESCRIBE			6	/* describe a key */47#define KEYCTL_CLEAR			7	/* clear contents of a keyring */48#define KEYCTL_LINK			8	/* link a key into a keyring */49#define KEYCTL_UNLINK			9	/* unlink a key from a keyring */50#define KEYCTL_SEARCH			10	/* search for a key in a keyring */51#define KEYCTL_READ			11	/* read a key or keyring's contents */52#define KEYCTL_INSTANTIATE		12	/* instantiate a partially constructed key */53#define KEYCTL_NEGATE			13	/* negate a partially constructed key */54#define KEYCTL_SET_REQKEY_KEYRING	14	/* set default request-key keyring */55#define KEYCTL_SET_TIMEOUT		15	/* set key timeout */56#define KEYCTL_ASSUME_AUTHORITY		16	/* assume request_key() authorisation */57#define KEYCTL_GET_SECURITY		17	/* get key security label */58#define KEYCTL_SESSION_TO_PARENT	18	/* apply session keyring to parent process */59#define KEYCTL_REJECT			19	/* reject a partially constructed key */60#define KEYCTL_INSTANTIATE_IOV		20	/* instantiate a partially constructed key */61#define KEYCTL_INVALIDATE		21	/* invalidate a key */62#define KEYCTL_GET_PERSISTENT		22	/* get a user's persistent keyring */63#define KEYCTL_DH_COMPUTE		23	/* Compute Diffie-Hellman values */64#define KEYCTL_PKEY_QUERY		24	/* Query public key parameters */65#define KEYCTL_PKEY_ENCRYPT		25	/* Encrypt a blob using a public key */66#define KEYCTL_PKEY_DECRYPT		26	/* Decrypt a blob using a public key */67#define KEYCTL_PKEY_SIGN		27	/* Create a public key signature */68#define KEYCTL_PKEY_VERIFY		28	/* Verify a public key signature */69#define KEYCTL_RESTRICT_KEYRING		29	/* Restrict keys allowed to link to a keyring */70#define KEYCTL_MOVE			30	/* Move keys between keyrings */71#define KEYCTL_CAPABILITIES		31	/* Find capabilities of keyrings subsystem */72#define KEYCTL_WATCH_KEY		32	/* Watch a key or ring of keys for changes */73 74/* keyctl structures */75struct keyctl_dh_params {76	union {77#ifndef __cplusplus78		__s32 private;79#endif80		__s32 priv;81	};82	__s32 prime;83	__s32 base;84};85 86struct keyctl_kdf_params {87	char __user *hashname;88	char __user *otherinfo;89	__u32 otherinfolen;90	__u32 __spare[8];91};92 93#define KEYCTL_SUPPORTS_ENCRYPT		0x0194#define KEYCTL_SUPPORTS_DECRYPT		0x0295#define KEYCTL_SUPPORTS_SIGN		0x0496#define KEYCTL_SUPPORTS_VERIFY		0x0897 98struct keyctl_pkey_query {99	__u32		supported_ops;	/* Which ops are supported */100	__u32		key_size;	/* Size of the key in bits */101	__u16		max_data_size;	/* Maximum size of raw data to sign in bytes */102	__u16		max_sig_size;	/* Maximum size of signature in bytes */103	__u16		max_enc_size;	/* Maximum size of encrypted blob in bytes */104	__u16		max_dec_size;	/* Maximum size of decrypted blob in bytes */105	__u32		__spare[10];106};107 108struct keyctl_pkey_params {109	__s32		key_id;		/* Serial no. of public key to use */110	__u32		in_len;		/* Input data size */111	union {112		__u32		out_len;	/* Output buffer size (encrypt/decrypt/sign) */113		__u32		in2_len;	/* 2nd input data size (verify) */114	};115	__u32		__spare[7];116};117 118#define KEYCTL_MOVE_EXCL	0x00000001 /* Do not displace from the to-keyring */119 120/*121 * Capabilities flags.  The capabilities list is an array of 8-bit integers;122 * each integer can carry up to 8 flags.123 */124#define KEYCTL_CAPS0_CAPABILITIES	0x01 /* KEYCTL_CAPABILITIES supported */125#define KEYCTL_CAPS0_PERSISTENT_KEYRINGS 0x02 /* Persistent keyrings enabled */126#define KEYCTL_CAPS0_DIFFIE_HELLMAN	0x04 /* Diffie-Hellman computation enabled */127#define KEYCTL_CAPS0_PUBLIC_KEY		0x08 /* Public key ops enabled */128#define KEYCTL_CAPS0_BIG_KEY		0x10 /* big_key-type enabled */129#define KEYCTL_CAPS0_INVALIDATE		0x20 /* KEYCTL_INVALIDATE supported */130#define KEYCTL_CAPS0_RESTRICT_KEYRING	0x40 /* KEYCTL_RESTRICT_KEYRING supported */131#define KEYCTL_CAPS0_MOVE		0x80 /* KEYCTL_MOVE supported */132#define KEYCTL_CAPS1_NS_KEYRING_NAME	0x01 /* Keyring names are per-user_namespace */133#define KEYCTL_CAPS1_NS_KEY_TAG		0x02 /* Key indexing can include a namespace tag */134#define KEYCTL_CAPS1_NOTIFICATIONS	0x04 /* Keys generate watchable notifications */135 136#endif /*  _LINUX_KEYCTL_H */137