From ccb778e1841ce04b4c10b39f0dd2558ab2c6dcd4 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 5 Aug 2008 14:13:08 +0800 Subject: crypto: api - Add fips_enable flag Add the ability to turn FIPS-compliant mode on or off at boot In order to be FIPS compliant, several check may need to be preformed that may be construed as unusefull in a non-compliant mode. This patch allows us to set a kernel flag incating that we are running in a fips-compliant mode from boot up. It also exports that mode information to user space via a sysctl (/proc/sys/crypto/fips_enabled). Tested successfully by me. Signed-off-by: Neil Horman Signed-off-by: Herbert Xu --- crypto/fips.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 crypto/fips.c (limited to 'crypto/fips.c') diff --git a/crypto/fips.c b/crypto/fips.c new file mode 100644 index 000000000000..553970081c62 --- /dev/null +++ b/crypto/fips.c @@ -0,0 +1,27 @@ +/* + * FIPS 200 support. + * + * Copyright (c) 2008 Neil Horman + * + * 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. + * + */ + +#include "internal.h" + +int fips_enabled; +EXPORT_SYMBOL_GPL(fips_enabled); + +/* Process kernel command-line parameter at boot time. fips=0 or fips=1 */ +static int fips_enable(char *str) +{ + fips_enabled = !!simple_strtol(str, NULL, 0); + printk(KERN_INFO "fips mode: %s\n", + fips_enabled ? "enabled" : "disabled"); + return 1; +} + +__setup("fips=", fips_enable); -- cgit