mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
c4741b2305
Use subsys_initcall for registration of all templates and generic algorithm implementations, rather than module_init. Then change cryptomgr to use arch_initcall, to place it before the subsys_initcalls. This is needed so that when both a generic and optimized implementation of an algorithm are built into the kernel (not loadable modules), the generic implementation is registered before the optimized one. Otherwise, the self-tests for the optimized implementation are unable to allocate the generic implementation for the new comparison fuzz tests. Note that on arm, a side effect of this change is that self-tests for generic implementations may run before the unaligned access handler has been installed. So, unaligned accesses will crash the kernel. This is arguably a good thing as it makes it easier to detect that type of bug. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/*
|
|
* FIPS 200 support.
|
|
*
|
|
* Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
|
|
*
|
|
* 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 <linux/export.h>
|
|
#include <linux/fips.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sysctl.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);
|
|
|
|
static struct ctl_table crypto_sysctl_table[] = {
|
|
{
|
|
.procname = "fips_enabled",
|
|
.data = &fips_enabled,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0444,
|
|
.proc_handler = proc_dointvec
|
|
},
|
|
{}
|
|
};
|
|
|
|
static struct ctl_table crypto_dir_table[] = {
|
|
{
|
|
.procname = "crypto",
|
|
.mode = 0555,
|
|
.child = crypto_sysctl_table
|
|
},
|
|
{}
|
|
};
|
|
|
|
static struct ctl_table_header *crypto_sysctls;
|
|
|
|
static void crypto_proc_fips_init(void)
|
|
{
|
|
crypto_sysctls = register_sysctl_table(crypto_dir_table);
|
|
}
|
|
|
|
static void crypto_proc_fips_exit(void)
|
|
{
|
|
unregister_sysctl_table(crypto_sysctls);
|
|
}
|
|
|
|
static int __init fips_init(void)
|
|
{
|
|
crypto_proc_fips_init();
|
|
return 0;
|
|
}
|
|
|
|
static void __exit fips_exit(void)
|
|
{
|
|
crypto_proc_fips_exit();
|
|
}
|
|
|
|
subsys_initcall(fips_init);
|
|
module_exit(fips_exit);
|