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Commit 94072cb2 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: fips - Move fips_enabled sysctl into fips.c 



There is currently a large ifdef FIPS code section in proc.c.
Ostensibly it's there because the fips_enabled sysctl sits under
/proc/sys/crypto.  However, no other crypto sysctls exist.

In fact, the whole ethos of the crypto API is against such user
interfaces so this patch moves all the FIPS sysctl code over to
fips.c.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 76450f93

crypto/fips.c

+48 −0
Original line number Diff line number Diff line
@@ -13,7 +13,9 @@ 
#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);
@@ -28,3 +30,49 @@ static int fips_enable(char *str) 
}



__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();

}



module_init(fips_init);

module_exit(fips_exit);

crypto/proc.c

+0 −41
Original line number Diff line number Diff line
@@ -20,47 +20,8 @@ 
#include <linux/rwsem.h>

#include <linux/proc_fs.h>

#include <linux/seq_file.h>

#include <linux/sysctl.h>

#include "internal.h"



#ifdef CONFIG_CRYPTO_FIPS

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)

{

	if (crypto_sysctls)

		unregister_sysctl_table(crypto_sysctls);

}

#else

#define crypto_proc_fips_init()

#define crypto_proc_fips_exit()

#endif



static void *c_start(struct seq_file *m, loff_t *pos)

{

	down_read(&crypto_alg_sem);
@@ -148,11 +109,9 @@ static const struct file_operations proc_crypto_ops = { 
void __init crypto_init_proc(void)

{

	proc_create("crypto", 0, NULL, &proc_crypto_ops);

	crypto_proc_fips_init();

}



void __exit crypto_exit_proc(void)

{

	crypto_proc_fips_exit();

	remove_proc_entry("crypto", NULL);

}