/*      $OpenBSD: cryptosoft.h,v 1.16 2021/07/09 15:29:55 bluhm Exp $   */

/*
 * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
 *
 * This code was written by Angelos D. Keromytis in Athens, Greece, in
 * February 2000. Network Security Technologies Inc. (NSTI) kindly
 * supported the development of this code.
 *
 * Copyright (c) 2000 Angelos D. Keromytis
 *
 * Permission to use, copy, and modify this software with or without fee
 * is hereby granted, provided that this entire notice is included in
 * all source code copies of any software which is or includes a copy or
 * modification of this software.
 *
 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
 * PURPOSE.
 */

#ifndef _CRYPTO_CRYPTOSOFT_H_
#define _CRYPTO_CRYPTOSOFT_H_

#include <sys/queue.h>

/* Software session entry */
struct swcr_data {
        int             sw_alg;         /* Algorithm */
        union {
                struct {
                        u_int8_t         *SW_ictx;
                        u_int8_t         *SW_octx;
                        u_int32_t        SW_klen;
                        const struct auth_hash *SW_axf;
                } SWCR_AUTH;
                struct {
                        u_int8_t         *SW_kschedule;
                        const struct enc_xform *SW_exf;
                } SWCR_ENC;
                struct {
                        u_int32_t        SW_size;
                        const struct comp_algo *SW_cxf;
                } SWCR_COMP;
        } SWCR_UN;

#define sw_ictx         SWCR_UN.SWCR_AUTH.SW_ictx
#define sw_octx         SWCR_UN.SWCR_AUTH.SW_octx
#define sw_klen         SWCR_UN.SWCR_AUTH.SW_klen
#define sw_axf          SWCR_UN.SWCR_AUTH.SW_axf
#define sw_kschedule    SWCR_UN.SWCR_ENC.SW_kschedule
#define sw_exf          SWCR_UN.SWCR_ENC.SW_exf
#define sw_size         SWCR_UN.SWCR_COMP.SW_size
#define sw_cxf          SWCR_UN.SWCR_COMP.SW_cxf

        SLIST_ENTRY(swcr_data)  sw_next;
};
SLIST_HEAD(swcr_list, swcr_data);

#ifdef _KERNEL
extern const u_int8_t hmac_ipad_buffer[HMAC_MAX_BLOCK_LEN];
extern const u_int8_t hmac_opad_buffer[HMAC_MAX_BLOCK_LEN];

int     swcr_encdec(struct cryptodesc *, struct swcr_data *, caddr_t, int);
int     swcr_authcompute(struct cryptop *, struct cryptodesc *, struct swcr_data *,
        caddr_t, int);
int     swcr_authenc(struct cryptop *);
int     swcr_compdec(struct cryptodesc *, struct swcr_data *, caddr_t, int);
int     swcr_process(struct cryptop *);
int     swcr_newsession(u_int32_t *, struct cryptoini *);
int     swcr_freesession(u_int64_t);
void    swcr_init(void);
#endif /* _KERNEL */

#endif /* _CRYPTO_CRYPTO_H_ */