1 files changed, 113 insertions, 0 deletions

diff --git a/arch/s390/crypto/crypt_s390_query.c b/arch/s390/crypto/crypt_s390_query.c
new file mode 100644
index 000000000000..0fa6bdf197cf
--- /dev/null
+++ b/arch/s390/crypto/crypt_s390_query.c
@@ -0,0 +1,113 @@
+/*
+ * Cryptographic API.
+ *
+ * Support for s390 cryptographic instructions.
+ * Testing module for querying processor crypto capabilities.
+ *
+ * Copyright (c) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s): Thomas Spatzier (tspat@de.ibm.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/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/errno.h>
+#include "crypt_s390.h"
+
+static void query_available_functions(void)
+{
+        printk(KERN_INFO "#####################\n");
+
+        /* query available KM functions */
+        printk(KERN_INFO "KM_QUERY: %d\n",
+                crypt_s390_func_available(KM_QUERY));
+        printk(KERN_INFO "KM_DEA: %d\n",
+                crypt_s390_func_available(KM_DEA_ENCRYPT));
+        printk(KERN_INFO "KM_TDEA_128: %d\n",
+                crypt_s390_func_available(KM_TDEA_128_ENCRYPT));
+        printk(KERN_INFO "KM_TDEA_192: %d\n",
+                crypt_s390_func_available(KM_TDEA_192_ENCRYPT));
+
+        /* query available KMC functions */
+        printk(KERN_INFO "KMC_QUERY: %d\n",
+                crypt_s390_func_available(KMC_QUERY));
+        printk(KERN_INFO "KMC_DEA: %d\n",
+                crypt_s390_func_available(KMC_DEA_ENCRYPT));
+        printk(KERN_INFO "KMC_TDEA_128: %d\n",
+                crypt_s390_func_available(KMC_TDEA_128_ENCRYPT));
+        printk(KERN_INFO "KMC_TDEA_192: %d\n",
+                crypt_s390_func_available(KMC_TDEA_192_ENCRYPT));
+
+        /* query available KIMD fucntions */
+        printk(KERN_INFO "KIMD_QUERY: %d\n",
+                crypt_s390_func_available(KIMD_QUERY));
+        printk(KERN_INFO "KIMD_SHA_1: %d\n",
+                crypt_s390_func_available(KIMD_SHA_1));
+
+        /* query available KLMD functions */
+        printk(KERN_INFO "KLMD_QUERY: %d\n",
+                crypt_s390_func_available(KLMD_QUERY));
+        printk(KERN_INFO "KLMD_SHA_1: %d\n",
+                crypt_s390_func_available(KLMD_SHA_1));
+
+        /* query available KMAC functions */
+        printk(KERN_INFO "KMAC_QUERY: %d\n",
+                crypt_s3990_func_available(KMAC_QUERY));
+        printk(KERN_INFO "KMAC_DEA: %d\n",
+                crypt_s390_func_available(KMAC_DEA));
+        printk(KERN_INFO "KMAC_TDEA_128: %d\n",
+                crypt_s390_func_available(KMAC_TDEA_128));
+        printk(KERN_INFO "KMAC_TDEA_192: %d\n",
+                crypt_s390_func_available(KMAC_TDEA_192));
+}
+
+static int init(void)
+{
+        struct crypt_s390_query_status status = {
+                .high = 0,
+                .low = 0
+        };
+
+        printk(KERN_INFO "crypt_s390: querying available crypto functions\n");
+        crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
+        printk(KERN_INFO "KM:\t%016llx %016llx\n",
+                        (unsigned long long) status.high,
+                        (unsigned long long) status.low);
+        status.high = status.low = 0;
+        crypt_s390_kmc(KMC_QUERY, &status, NULL, NULL, 0);
+        printk(KERN_INFO "KMC:\t%016llx %016llx\n",
+                        (unsigned long long) status.high,
+                        (unsigned long long) status.low);
+        status.high = status.low = 0;
+        crypt_s390_kimd(KIMD_QUERY, &status, NULL, 0);
+        printk(KERN_INFO "KIMD:\t%016llx %016llx\n",
+                        (unsigned long long) status.high,
+                        (unsigned long long) status.low);
+        status.high = status.low = 0;
+        crypt_s390_klmd(KLMD_QUERY, &status, NULL, 0);
+        printk(KERN_INFO "KLMD:\t%016llx %016llx\n",
+                        (unsigned long long) status.high,
+                        (unsigned long long) status.low);
+        status.high = status.low = 0;
+        crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
+        printk(KERN_INFO "KMAC:\t%016llx %016llx\n",
+                        (unsigned long long) status.high,
+                        (unsigned long long) status.low);
+
+        query_available_functions();
+        return -ECANCELED;
+}
+
+static void __exit cleanup(void)
+{
+}
+
+module_init(init);
+module_exit(cleanup);
+
+MODULE_LICENSE("GPL");