freebsd-dev/sys/opencrypto/cryptodev_if.m

#-
# Copyright (c) 2006, Sam Leffler
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
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#
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# $FreeBSD$
#

#include <sys/malloc.h>
#include <opencrypto/cryptodev.h>

INTERFACE cryptodev;

CODE {
	static int null_freesession(device_t dev,
	    crypto_session_t crypto_session)
	{
		return 0;
	}
};

/**
 * Crypto driver method to initialize a new session object with the given
 * initialization parameters (cryptoini).  The driver's session memory object
 * is already allocated and zeroed, like driver softcs.  It is accessed with
 * crypto_get_driver_session().
 */
METHOD int newsession {
	device_t	dev;
	crypto_session_t crypto_session;
	struct cryptoini *cri;
};

/**
 * Optional crypto driver method to release any additional allocations.  OCF
 * owns session memory itself; it is zeroed before release.
 */
METHOD void freesession {
	device_t	dev;
	crypto_session_t crypto_session;
} DEFAULT null_freesession;

METHOD int process {
	device_t	dev;
	struct cryptop	*op;
	int		flags;
};

METHOD int kprocess {
	device_t	dev;
	struct cryptkop	*op;
	int		flags;
};