arch/s390/crypto/crypt_s390_query.c

   1 /*
   2  * Cryptographic API.
   3  *
   4  * Support for s390 cryptographic instructions.
   5  * Testing module for querying processor crypto capabilities.
   6  *
   7  * Copyright (c) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
   8  * Author(s): Thomas Spatzier (tspat@de.ibm.com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by the Free
  12  * Software Foundation; either version 2 of the License, or (at your option)
  13  * any later version.
  14  *
  15  */
  16 #include <linux/module.h>
  17 #include <linux/init.h>
  18 #include <linux/kernel.h>
  19 #include <asm/errno.h>
  20 #include "crypt_s390.h"
  21
  22 static void query_available_functions(void)
  23 {
  24         printk(KERN_INFO "#####################\n");
  25
  26         /* query available KM functions */
  27         printk(KERN_INFO "KM_QUERY: %d\n",
  28                 crypt_s390_func_available(KM_QUERY));
  29         printk(KERN_INFO "KM_DEA: %d\n",
  30                 crypt_s390_func_available(KM_DEA_ENCRYPT));
  31         printk(KERN_INFO "KM_TDEA_128: %d\n",
  32                 crypt_s390_func_available(KM_TDEA_128_ENCRYPT));
  33         printk(KERN_INFO "KM_TDEA_192: %d\n",
  34                 crypt_s390_func_available(KM_TDEA_192_ENCRYPT));
  35         printk(KERN_INFO "KM_AES_128: %d\n",
  36                 crypt_s390_func_available(KM_AES_128_ENCRYPT));
  37         printk(KERN_INFO "KM_AES_192: %d\n",
  38                 crypt_s390_func_available(KM_AES_192_ENCRYPT));
  39         printk(KERN_INFO "KM_AES_256: %d\n",
  40                 crypt_s390_func_available(KM_AES_256_ENCRYPT));
  41
  42         /* query available KMC functions */
  43         printk(KERN_INFO "KMC_QUERY: %d\n",
  44                 crypt_s390_func_available(KMC_QUERY));
  45         printk(KERN_INFO "KMC_DEA: %d\n",
  46                 crypt_s390_func_available(KMC_DEA_ENCRYPT));
  47         printk(KERN_INFO "KMC_TDEA_128: %d\n",
  48                 crypt_s390_func_available(KMC_TDEA_128_ENCRYPT));
  49         printk(KERN_INFO "KMC_TDEA_192: %d\n",
  50                 crypt_s390_func_available(KMC_TDEA_192_ENCRYPT));
  51         printk(KERN_INFO "KMC_AES_128: %d\n",
  52                 crypt_s390_func_available(KMC_AES_128_ENCRYPT));
  53         printk(KERN_INFO "KMC_AES_192: %d\n",
  54                 crypt_s390_func_available(KMC_AES_192_ENCRYPT));
  55         printk(KERN_INFO "KMC_AES_256: %d\n",
  56                 crypt_s390_func_available(KMC_AES_256_ENCRYPT));
  57
  58         /* query available KIMD functions */
  59         printk(KERN_INFO "KIMD_QUERY: %d\n",
  60                 crypt_s390_func_available(KIMD_QUERY));
  61         printk(KERN_INFO "KIMD_SHA_1: %d\n",
  62                 crypt_s390_func_available(KIMD_SHA_1));
  63         printk(KERN_INFO "KIMD_SHA_256: %d\n",
  64                 crypt_s390_func_available(KIMD_SHA_256));
  65
  66         /* query available KLMD functions */
  67         printk(KERN_INFO "KLMD_QUERY: %d\n",
  68                 crypt_s390_func_available(KLMD_QUERY));
  69         printk(KERN_INFO "KLMD_SHA_1: %d\n",
  70                 crypt_s390_func_available(KLMD_SHA_1));
  71         printk(KERN_INFO "KLMD_SHA_256: %d\n",
  72                 crypt_s390_func_available(KLMD_SHA_256));
  73
  74         /* query available KMAC functions */
  75         printk(KERN_INFO "KMAC_QUERY: %d\n",
  76                 crypt_s390_func_available(KMAC_QUERY));
  77         printk(KERN_INFO "KMAC_DEA: %d\n",
  78                 crypt_s390_func_available(KMAC_DEA));
  79         printk(KERN_INFO "KMAC_TDEA_128: %d\n",
  80                 crypt_s390_func_available(KMAC_TDEA_128));
  81         printk(KERN_INFO "KMAC_TDEA_192: %d\n",
  82                 crypt_s390_func_available(KMAC_TDEA_192));
  83 }
  84
  85 static int init(void)
  86 {
  87         struct crypt_s390_query_status status = {
  88                 .high = 0,
  89                 .low = 0
  90         };
  91
  92         printk(KERN_INFO "crypt_s390: querying available crypto functions\n");
  93         crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
  94         printk(KERN_INFO "KM:\t%016llx %016llx\n",
  95                         (unsigned long long) status.high,
  96                         (unsigned long long) status.low);
  97         status.high = status.low = 0;
  98         crypt_s390_kmc(KMC_QUERY, &status, NULL, NULL, 0);
  99         printk(KERN_INFO "KMC:\t%016llx %016llx\n",
 100                         (unsigned long long) status.high,
 101                         (unsigned long long) status.low);
 102         status.high = status.low = 0;
 103         crypt_s390_kimd(KIMD_QUERY, &status, NULL, 0);
 104         printk(KERN_INFO "KIMD:\t%016llx %016llx\n",
 105                         (unsigned long long) status.high,
 106                         (unsigned long long) status.low);
 107         status.high = status.low = 0;
 108         crypt_s390_klmd(KLMD_QUERY, &status, NULL, 0);
 109         printk(KERN_INFO "KLMD:\t%016llx %016llx\n",
 110                         (unsigned long long) status.high,
 111                         (unsigned long long) status.low);
 112         status.high = status.low = 0;
 113         crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
 114         printk(KERN_INFO "KMAC:\t%016llx %016llx\n",
 115                         (unsigned long long) status.high,
 116                         (unsigned long long) status.low);
 117
 118         query_available_functions();
 119         return -ECANCELED;
 120 }
 121
 122 static void __exit cleanup(void)
 123 {
 124 }
 125
 126 module_init(init);
 127 module_exit(cleanup);
 128
 129 MODULE_LICENSE("GPL");