/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*
 * Copyright 2019 Peter Tribble.
 */

#ifndef _SYS_SCKM_IO_H
#define _SYS_SCKM_IO_H

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * This header file defines the interface between the sckmd daemon and
 * the sckmdrv driver.
 */

#include <sys/types.h>

#define SCKM_IOC        ('s' << 8)

enum sckm_ioctl {
        SCKM_IOCTL_GETREQ = SCKM_IOC,
        SCKM_IOCTL_STATUS
};

/*
 * Structure passed by sckmd daemon to the sckmdrv driver during
 * a SCKM_IOCTL_GETREQ ioctl call.
 */
typedef struct sckm_ioctl_getreq {
        uint64_t transid;       /* returned by driver */
        uint32_t type;          /* message type */
        caddr_t buf;            /* user buffer to store msg */
        uint32_t buf_len;       /* size of buf */
} sckm_ioctl_getreq_t;

#if defined(_SYSCALL32)
typedef struct sckm_ioctl_getreq_32 {
        uint64_t transid;       /* returned by driver */
        uint32_t type;          /* message type */
        caddr32_t buf;          /* user buffer to store msg */
        uint32_t buf_len;       /* size of buf */
} sckm_ioctl_getreq32_t;
#endif /* defined(_SYSCALL32) */

/*
 * Structure passed by sckmd daemon to the sckmdrv driver during
 * a SCKM_IOCTL_STATUS ioctl call.
 */
typedef struct sckm_ioctl_status {
        uint64_t transid;               /* set by daemon */
        uint32_t status;                /* execution status */
        uint32_t sadb_msg_errno;        /* PF_KEY errno, if applicable */
        uint32_t sadb_msg_version;      /* PF_KEY version, if applicable */
} sckm_ioctl_status_t;

/*
 * Valid request types returned by the SCKM_IOCTL_GETREQ ioctl.
 */
#define SCKM_IOCTL_REQ_SADB             0x0     /* SADB message */

/*
 * Valid values for the status field of the sckm_ioctl_status structure.
 */
#define SCKM_IOCTL_STAT_SUCCESS         0x0     /* operation success */
#define SCKM_IOCTL_STAT_ERR_PFKEY       0x1     /* PF_KEY error */
#define SCKM_IOCTL_STAT_ERR_REQ         0x2     /* invalid request */
#define SCKM_IOCTL_STAT_ERR_VERSION     0x3     /* not supp. PF_KEY version */
#define SCKM_IOCTL_STAT_ERR_TIMEOUT     0x4     /* no response from PF_KEY */
#define SCKM_IOCTL_STAT_ERR_OTHER       0x5     /* other daemon error */
#define SCKM_IOCTL_STAT_ERR_SADB_TYPE   0x6     /* bad SADB msg type */

#ifdef  __cplusplus
}
#endif

#endif /* _SYS_SCKM_IO_H */