115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
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/* module_hooks.c -- module load/unload hooks for libwolfssl.ko
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*
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#include <wolfssl/wolfcrypt/error-crypt.h>
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#include <wolfssl/ssl.h>
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#ifndef NO_CRYPT_TEST
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#include <wolfcrypt/test/test.h>
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#include <linux/delay.h>
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#endif
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static int libwolfssl_cleanup(void) {
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int ret;
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#ifdef WOLFCRYPT_ONLY
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ret = wolfCrypt_Cleanup();
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if (ret != 0)
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pr_err("wolfCrypt_Cleanup() failed: %s", wc_GetErrorString(ret));
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else
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pr_info("wolfCrypt " LIBWOLFSSL_VERSION_STRING " cleanup complete.\n");
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#else
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ret = wolfSSL_Cleanup();
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if (ret != WOLFSSL_SUCCESS)
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pr_err("wolfSSL_Cleanup() failed: %s", wc_GetErrorString(ret));
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else
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pr_info("wolfSSL " LIBWOLFSSL_VERSION_STRING " cleanup complete.\n");
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#endif
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return ret;
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}
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
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static int __init wolfssl_init(void)
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#else
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static int wolfssl_init(void)
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#endif
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{
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int ret;
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#ifdef WOLFCRYPT_ONLY
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ret = wolfCrypt_Init();
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if (ret != 0) {
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pr_err("wolfCrypt_Init() failed: %s", wc_GetErrorString(ret));
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return -ENOTRECOVERABLE;
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}
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#else
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ret = wolfSSL_Init();
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if (ret != WOLFSSL_SUCCESS) {
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pr_err("wolfSSL_Init() failed: %s", wc_GetErrorString(ret));
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return -ENOTRECOVERABLE;
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}
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#endif
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#ifndef NO_CRYPT_TEST
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ret = wolfcrypt_test(NULL);
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if (ret < 0) {
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pr_err("wolfcrypt self-test failed with return code %d.", ret);
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(void)libwolfssl_cleanup();
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msleep(10);
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return -ENOTRECOVERABLE;
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}
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pr_info("wolfCrypt self-test passed.\n");
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#endif
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#ifdef WOLFCRYPT_ONLY
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pr_info("wolfCrypt " LIBWOLFSSL_VERSION_STRING " loaded. See https://www.wolfssl.com/ for information.\n");
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#else
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pr_info("wolfSSL " LIBWOLFSSL_VERSION_STRING " loaded. See https://www.wolfssl.com/ for information.\n");
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#endif
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pr_info("Copyright (C) 2006-2020 wolfSSL Inc. All Rights Reserved.\n");
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return 0;
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}
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module_init(wolfssl_init);
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
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static void __exit wolfssl_exit(void)
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#else
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static void wolfssl_exit(void)
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#endif
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{
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(void)libwolfssl_cleanup();
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return;
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}
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module_exit(wolfssl_exit);
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MODULE_LICENSE("GPL v2");
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MODULE_AUTHOR("https://www.wolfssl.com/");
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MODULE_DESCRIPTION("libwolfssl cryptographic and protocol facilities");
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MODULE_VERSION(LIBWOLFSSL_VERSION_STRING);
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