crypto: api - Add fips_enable flag

[pandora-kernel.git] / crypto / proc.c

diff --git a/crypto/proc.c b/crypto/proc.c
index 1d616ad..37a13d0 100644 (file)
--- a/crypto/proc.c
+++ b/crypto/proc.c
@@ -19,8 +19,53 @@
 #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[] = {
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "fips_enabled",
+               .data           = &fips_enabled,
+               .maxlen         = sizeof(int),
+               .mode           = 0444,
+               .proc_handler   = &proc_dointvec
+       },
+       {
+               .ctl_name = 0,
+       },
+};
+
+static struct ctl_table crypto_dir_table[] = {
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "crypto",
+               .mode           = 0555,
+               .child          = crypto_sysctl_table
+       },
+       {
+               .ctl_name = 0,
+       },
+};
+
+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);
@@ -106,9 +151,11 @@ 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);
 }