99ba792d73
Track session objects in the framework, and pass handles between the framework (OCF), consumers, and drivers. Avoid redundancy and complexity in individual drivers by allocating session memory in the framework and providing it to drivers in ::newsession(). Session handles are no longer integers with information encoded in various high bits. Use of the CRYPTO_SESID2FOO() macros should be replaced with the appropriate crypto_ses2foo() function on the opaque session handle. Convert OCF drivers (in particular, cryptosoft, as well as myriad others) to the opaque handle interface. Discard existing session tracking as much as possible (quick pass). There may be additional code ripe for deletion. Convert OCF consumers (ipsec, geom_eli, krb5, cryptodev) to handle-style interface. The conversion is largely mechnical. The change is documented in crypto.9. Inspired by https://lists.freebsd.org/pipermail/freebsd-arch/2018-January/018835.html . No objection from: ae (ipsec portion) Reported by: jhb
74 lines
2.2 KiB
Objective-C
74 lines
2.2 KiB
Objective-C
#-
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# Copyright (c) 2006, Sam Leffler
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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#include <sys/malloc.h>
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#include <opencrypto/cryptodev.h>
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INTERFACE cryptodev;
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CODE {
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static int null_freesession(device_t dev,
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crypto_session_t crypto_session)
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{
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return 0;
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}
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};
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/**
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* Crypto driver method to initialize a new session object with the given
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* initialization parameters (cryptoini). The driver's session memory object
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* is already allocated and zeroed, like driver softcs. It is accessed with
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* crypto_get_driver_session().
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*/
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METHOD int newsession {
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device_t dev;
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crypto_session_t crypto_session;
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struct cryptoini *cri;
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};
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/**
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* Optional crypto driver method to release any additional allocations. OCF
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* owns session memory itself; it is zeroed before release.
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*/
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METHOD void freesession {
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device_t dev;
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crypto_session_t crypto_session;
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} DEFAULT null_freesession;
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METHOD int process {
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device_t dev;
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struct cryptop *op;
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int flags;
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};
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METHOD int kprocess {
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device_t dev;
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struct cryptkop *op;
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int flags;
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};
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