98 lines
2.0 KiB
C
Executable File
98 lines
2.0 KiB
C
Executable File
/*
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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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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#include "fips140.h"
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/*
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Notes:
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1) The revision provides FIPS140ed kernel only
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2) CONFIG_CRYPTO_FIPS meaning is different comparing to vanilla kernel, "FIPS 200" -> "FIPS 140-2"
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3) provide fips_enable always ON
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*/
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int fips_enabled = 1;
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EXPORT_SYMBOL_GPL(fips_enabled);
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static int IN_FIPS140_ERROR = FIPS140_NO_ERR;
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bool in_fips_err(void)
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{
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return (IN_FIPS140_ERROR == FIPS140_ERR);
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}
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EXPORT_SYMBOL_GPL(in_fips_err);
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void set_in_fips_err(void)
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{
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IN_FIPS140_ERROR = FIPS140_ERR;
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}
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EXPORT_SYMBOL_GPL(set_in_fips_err);
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#ifdef CONFIG_CRYPTO_FIPS_FUNC_TEST
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void reset_in_fips_err(void)
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{
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IN_FIPS140_ERROR = FIPS140_NO_ERR;
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}
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EXPORT_SYMBOL_GPL(reset_in_fips_err);
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#endif /* CONFIG_CRYPTO_FIPS_FUNC_TEST */
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static struct ctl_table crypto_sysctl_table[] = {
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{
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.procname = "fips_status",
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.data = &IN_FIPS140_ERROR,
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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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module_init(fips_init);
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module_exit(fips_exit);
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