diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/ocfnull/ocfnull.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/ocfnull/ocfnull.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/target/linux/generic/files/crypto/ocf/ocfnull/ocfnull.c b/target/linux/generic/files/crypto/ocf/ocfnull/ocfnull.c deleted file mode 100644 index 9cf3f6e029..0000000000 --- a/target/linux/generic/files/crypto/ocf/ocfnull/ocfnull.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * An OCF module for determining the cost of crypto versus the cost of - * IPSec processing outside of OCF. This modules gives us the effect of - * zero cost encryption, of course you will need to run it at both ends - * since it does no crypto at all. - * - * Written by David McCullough <david_mccullough@mcafee.com> - * Copyright (C) 2006-2010 David McCullough - * - * LICENSE TERMS - * - * The free distribution and use of this software in both source and binary - * form is allowed (with or without changes) provided that: - * - * 1. distributions of this source code include the above copyright - * notice, this list of conditions and the following disclaimer; - * - * 2. distributions in binary form include the above copyright - * notice, this list of conditions and the following disclaimer - * in the documentation and/or other associated materials; - * - * 3. the copyright holder's name is not used to endorse products - * built using this software without specific written permission. - * - * ALTERNATIVELY, provided that this notice is retained in full, this product - * may be distributed under the terms of the GNU General Public License (GPL), - * in which case the provisions of the GPL apply INSTEAD OF those given above. - * - * DISCLAIMER - * - * This software is provided 'as is' with no explicit or implied warranties - * in respect of its properties, including, but not limited to, correctness - * and/or fitness for purpose. - */ - -#include <linux/version.h> -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED) -#include <linux/config.h> -#endif -#include <linux/module.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/slab.h> -#include <linux/sched.h> -#include <linux/wait.h> -#include <linux/crypto.h> -#include <linux/interrupt.h> - -#include <cryptodev.h> -#include <uio.h> - -static int32_t null_id = -1; -static u_int32_t null_sesnum = 0; - -static int null_process(device_t, struct cryptop *, int); -static int null_newsession(device_t, u_int32_t *, struct cryptoini *); -static int null_freesession(device_t, u_int64_t); - -#define debug ocfnull_debug -int ocfnull_debug = 0; -module_param(ocfnull_debug, int, 0644); -MODULE_PARM_DESC(ocfnull_debug, "Enable debug"); - -/* - * dummy device structure - */ - -static struct { - softc_device_decl sc_dev; -} nulldev; - -static device_method_t null_methods = { - /* crypto device methods */ - DEVMETHOD(cryptodev_newsession, null_newsession), - DEVMETHOD(cryptodev_freesession,null_freesession), - DEVMETHOD(cryptodev_process, null_process), -}; - -/* - * Generate a new software session. - */ -static int -null_newsession(device_t arg, u_int32_t *sid, struct cryptoini *cri) -{ - dprintk("%s()\n", __FUNCTION__); - if (sid == NULL || cri == NULL) { - dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__); - return EINVAL; - } - - if (null_sesnum == 0) - null_sesnum++; - *sid = null_sesnum++; - return 0; -} - - -/* - * Free a session. - */ -static int -null_freesession(device_t arg, u_int64_t tid) -{ - u_int32_t sid = CRYPTO_SESID2LID(tid); - - dprintk("%s()\n", __FUNCTION__); - if (sid > null_sesnum) { - dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); - return EINVAL; - } - - /* Silently accept and return */ - if (sid == 0) - return 0; - return 0; -} - - -/* - * Process a request. - */ -static int -null_process(device_t arg, struct cryptop *crp, int hint) -{ - unsigned int lid; - - dprintk("%s()\n", __FUNCTION__); - - /* Sanity check */ - if (crp == NULL) { - dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); - return EINVAL; - } - - crp->crp_etype = 0; - - if (crp->crp_desc == NULL || crp->crp_buf == NULL) { - dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); - crp->crp_etype = EINVAL; - goto done; - } - - /* - * find the session we are using - */ - - lid = crp->crp_sid & 0xffffffff; - if (lid >= null_sesnum || lid == 0) { - crp->crp_etype = ENOENT; - dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__); - goto done; - } - -done: - crypto_done(crp); - return 0; -} - - -/* - * our driver startup and shutdown routines - */ - -static int -null_init(void) -{ - dprintk("%s(%p)\n", __FUNCTION__, null_init); - - memset(&nulldev, 0, sizeof(nulldev)); - softc_device_init(&nulldev, "ocfnull", 0, null_methods); - - null_id = crypto_get_driverid(softc_get_device(&nulldev), - CRYPTOCAP_F_HARDWARE); - if (null_id < 0) - panic("ocfnull: crypto device cannot initialize!"); - -#define REGISTER(alg) \ - crypto_register(null_id,alg,0,0) - REGISTER(CRYPTO_DES_CBC); - REGISTER(CRYPTO_3DES_CBC); - REGISTER(CRYPTO_RIJNDAEL128_CBC); - REGISTER(CRYPTO_MD5); - REGISTER(CRYPTO_SHA1); - REGISTER(CRYPTO_MD5_HMAC); - REGISTER(CRYPTO_SHA1_HMAC); -#undef REGISTER - - return 0; -} - -static void -null_exit(void) -{ - dprintk("%s()\n", __FUNCTION__); - crypto_unregister_all(null_id); - null_id = -1; -} - -module_init(null_init); -module_exit(null_exit); - -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>"); -MODULE_DESCRIPTION("ocfnull - claims a lot but does nothing"); |