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d77702035a
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #12901
159 lines
4.9 KiB
C
159 lines
4.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_CRYPTO_API_H
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#define _SYS_CRYPTO_API_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <sys/zfs_context.h>
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#include <sys/crypto/common.h>
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typedef long crypto_req_id_t;
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typedef void *crypto_bc_t;
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typedef void *crypto_context_t;
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typedef void *crypto_ctx_template_t;
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typedef struct {
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void (*cr_callback_func)(void *, int);
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void *cr_callback_arg;
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crypto_req_id_t cr_reqid;
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} crypto_call_req_t;
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/*
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* Returns the mechanism type corresponding to a mechanism name.
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*/
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#define CRYPTO_MECH_INVALID ((uint64_t)-1)
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extern crypto_mech_type_t crypto_mech2id(const char *name);
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/*
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* Create and destroy context templates.
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*/
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extern int crypto_create_ctx_template(crypto_mechanism_t *mech,
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crypto_key_t *key, crypto_ctx_template_t *tmpl, int kmflag);
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extern void crypto_destroy_ctx_template(crypto_ctx_template_t tmpl);
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/*
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* Single and multi-part MAC operations.
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*/
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extern int crypto_mac(crypto_mechanism_t *mech, crypto_data_t *data,
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crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_data_t *mac,
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crypto_call_req_t *cr);
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extern int crypto_mac_init(crypto_mechanism_t *mech, crypto_key_t *key,
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crypto_ctx_template_t tmpl, crypto_context_t *ctxp, crypto_call_req_t *cr);
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extern int crypto_mac_update(crypto_context_t ctx, crypto_data_t *data);
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extern int crypto_mac_final(crypto_context_t ctx, crypto_data_t *data);
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/*
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* Single and multi-part encryption operations.
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*/
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extern int crypto_encrypt(crypto_mechanism_t *mech, crypto_data_t *plaintext,
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crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_data_t *ciphertext,
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crypto_call_req_t *cr);
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/*
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* Single and multi-part decryption operations.
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*/
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extern int crypto_decrypt(crypto_mechanism_t *mech, crypto_data_t *ciphertext,
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crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_data_t *plaintext,
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crypto_call_req_t *cr);
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/*
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* A kernel consumer can request to be notified when some particular event
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* occurs. The valid events, callback function type, and functions to
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* be called to register or unregister for notification are defined below.
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*/
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#define CRYPTO_EVENT_MECHS_CHANGED 0x00000001
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#define CRYPTO_EVENT_PROVIDER_REGISTERED 0x00000002
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#define CRYPTO_EVENT_PROVIDER_UNREGISTERED 0x00000004
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typedef enum {
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CRYPTO_MECH_ADDED = 1,
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CRYPTO_MECH_REMOVED
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} crypto_event_change_t;
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/* The event_arg argument structure for CRYPTO_EVENT_PROVIDERS_CHANGE event */
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typedef struct crypto_notify_event_change {
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crypto_mech_name_t ec_mech_name;
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crypto_event_change_t ec_change;
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} crypto_notify_event_change_t;
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typedef void *crypto_notify_handle_t;
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typedef void (*crypto_notify_callback_t)(uint32_t event_mask, void *event_arg);
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extern crypto_notify_handle_t crypto_notify_events(
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crypto_notify_callback_t nf, uint32_t event_mask);
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extern void crypto_unnotify_events(crypto_notify_handle_t);
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/*
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* crypto_bufcall(9F) group of routines.
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*/
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extern crypto_bc_t crypto_bufcall_alloc(void);
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extern int crypto_bufcall_free(crypto_bc_t bc);
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extern int crypto_bufcall(crypto_bc_t bc, void (*func)(void *arg), void *arg);
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extern int crypto_unbufcall(crypto_bc_t bc);
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/*
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* To obtain the list of key size ranges supported by a mechanism.
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*/
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#define CRYPTO_MECH_USAGE_ENCRYPT 0x00000001
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#define CRYPTO_MECH_USAGE_DECRYPT 0x00000002
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#define CRYPTO_MECH_USAGE_MAC 0x00000004
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typedef uint32_t crypto_mech_usage_t;
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typedef struct crypto_mechanism_info {
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size_t mi_min_key_size;
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size_t mi_max_key_size;
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crypto_keysize_unit_t mi_keysize_unit; /* for mi_xxx_key_size */
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crypto_mech_usage_t mi_usage;
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} crypto_mechanism_info_t;
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#ifdef _SYSCALL32
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typedef struct crypto_mechanism_info32 {
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size32_t mi_min_key_size;
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size32_t mi_max_key_size;
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crypto_keysize_unit_t mi_keysize_unit; /* for mi_xxx_key_size */
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crypto_mech_usage_t mi_usage;
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} crypto_mechanism_info32_t;
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#endif /* _SYSCALL32 */
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extern int crypto_get_all_mech_info(crypto_mech_type_t,
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crypto_mechanism_info_t **, uint_t *, int);
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extern void crypto_free_all_mech_info(crypto_mechanism_info_t *, uint_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_CRYPTO_API_H */
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