2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* FIPS 200 support.
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*
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* Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
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*/
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#include <linux/export.h>
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#include <linux/fips.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sysctl.h>
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int fips_enabled;
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EXPORT_SYMBOL_GPL(fips_enabled);
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/* Process kernel command-line parameter at boot time. fips=0 or fips=1 */
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static int fips_enable(char *str)
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{
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fips_enabled = !!simple_strtol(str, NULL, 0);
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printk(KERN_INFO "fips mode: %s\n",
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fips_enabled ? "enabled" : "disabled");
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return 1;
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}
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__setup("fips=", fips_enable);
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static struct ctl_table crypto_sysctl_table[] = {
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{
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.procname = "fips_enabled",
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.data = &fips_enabled,
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.maxlen = sizeof(int),
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.mode = 0444,
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.proc_handler = proc_dointvec
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},
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{}
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};
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static struct ctl_table crypto_dir_table[] = {
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{
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.procname = "crypto",
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.mode = 0555,
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.child = crypto_sysctl_table
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},
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{}
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};
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static struct ctl_table_header *crypto_sysctls;
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static void crypto_proc_fips_init(void)
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{
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crypto_sysctls = register_sysctl_table(crypto_dir_table);
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}
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static void crypto_proc_fips_exit(void)
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{
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unregister_sysctl_table(crypto_sysctls);
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}
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static int __init fips_init(void)
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{
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crypto_proc_fips_init();
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return 0;
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}
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static void __exit fips_exit(void)
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{
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crypto_proc_fips_exit();
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}
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subsys_initcall(fips_init);
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module_exit(fips_exit);
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