# Cryptographic API
#
-obj-$(CONFIG_CRYPTO_SHA1_Z990) += sha1_z990.o
-obj-$(CONFIG_CRYPTO_DES_Z990) += des_z990.o des_check_key.o
+obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o
+obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o des_check_key.o
-obj-$(CONFIG_CRYPTO_TEST) += crypt_z990_query.o
+obj-$(CONFIG_CRYPTO_TEST) += crypt_s390_query.o
--- /dev/null
+/*
+ * Cryptographic API.
+ *
+ * Support for s390 cryptographic instructions.
+ *
+ * Copyright (C) 2003 IBM Deutschland 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.
+ *
+ */
+#ifndef _CRYPTO_ARCH_S390_CRYPT_S390_H
+#define _CRYPTO_ARCH_S390_CRYPT_S390_H
+
+#include <asm/errno.h>
+
+#define CRYPT_S390_OP_MASK 0xFF00
+#define CRYPT_S390_FUNC_MASK 0x00FF
+
+/* s930 cryptographic operations */
+enum crypt_s390_operations {
+ CRYPT_S390_KM = 0x0100,
+ CRYPT_S390_KMC = 0x0200,
+ CRYPT_S390_KIMD = 0x0300,
+ CRYPT_S390_KLMD = 0x0400,
+ CRYPT_S390_KMAC = 0x0500
+};
+
+/* function codes for KM (CIPHER MESSAGE) instruction
+ * 0x80 is the decipher modifier bit
+ */
+enum crypt_s390_km_func {
+ KM_QUERY = CRYPT_S390_KM | 0,
+ KM_DEA_ENCRYPT = CRYPT_S390_KM | 1,
+ KM_DEA_DECRYPT = CRYPT_S390_KM | 1 | 0x80,
+ KM_TDEA_128_ENCRYPT = CRYPT_S390_KM | 2,
+ KM_TDEA_128_DECRYPT = CRYPT_S390_KM | 2 | 0x80,
+ KM_TDEA_192_ENCRYPT = CRYPT_S390_KM | 3,
+ KM_TDEA_192_DECRYPT = CRYPT_S390_KM | 3 | 0x80,
+};
+
+/* function codes for KMC (CIPHER MESSAGE WITH CHAINING)
+ * instruction
+ */
+enum crypt_s390_kmc_func {
+ KMC_QUERY = CRYPT_S390_KMC | 0,
+ KMC_DEA_ENCRYPT = CRYPT_S390_KMC | 1,
+ KMC_DEA_DECRYPT = CRYPT_S390_KMC | 1 | 0x80,
+ KMC_TDEA_128_ENCRYPT = CRYPT_S390_KMC | 2,
+ KMC_TDEA_128_DECRYPT = CRYPT_S390_KMC | 2 | 0x80,
+ KMC_TDEA_192_ENCRYPT = CRYPT_S390_KMC | 3,
+ KMC_TDEA_192_DECRYPT = CRYPT_S390_KMC | 3 | 0x80,
+};
+
+/* function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
+ * instruction
+ */
+enum crypt_s390_kimd_func {
+ KIMD_QUERY = CRYPT_S390_KIMD | 0,
+ KIMD_SHA_1 = CRYPT_S390_KIMD | 1,
+};
+
+/* function codes for KLMD (COMPUTE LAST MESSAGE DIGEST)
+ * instruction
+ */
+enum crypt_s390_klmd_func {
+ KLMD_QUERY = CRYPT_S390_KLMD | 0,
+ KLMD_SHA_1 = CRYPT_S390_KLMD | 1,
+};
+
+/* function codes for KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
+ * instruction
+ */
+enum crypt_s390_kmac_func {
+ KMAC_QUERY = CRYPT_S390_KMAC | 0,
+ KMAC_DEA = CRYPT_S390_KMAC | 1,
+ KMAC_TDEA_128 = CRYPT_S390_KMAC | 2,
+ KMAC_TDEA_192 = CRYPT_S390_KMAC | 3
+};
+
+/* status word for s390 crypto instructions' QUERY functions */
+struct crypt_s390_query_status {
+ u64 high;
+ u64 low;
+};
+
+/*
+ * Standard fixup and ex_table sections for crypt_s390 inline functions.
+ * label 0: the s390 crypto operation
+ * label 1: just after 1 to catch illegal operation exception
+ * (unsupported model)
+ * label 6: the return point after fixup
+ * label 7: set error value if exception _in_ crypto operation
+ * label 8: set error value if illegal operation exception
+ * [ret] is the variable to receive the error code
+ * [ERR] is the error code value
+ */
+#ifndef __s390x__
+#define __crypt_s390_fixup \
+ ".section .fixup,\"ax\" \n" \
+ "7: lhi %0,%h[e1] \n" \
+ " bras 1,9f \n" \
+ " .long 6b \n" \
+ "8: lhi %0,%h[e2] \n" \
+ " bras 1,9f \n" \
+ " .long 6b \n" \
+ "9: l 1,0(1) \n" \
+ " br 1 \n" \
+ ".previous \n" \
+ ".section __ex_table,\"a\" \n" \
+ " .align 4 \n" \
+ " .long 0b,7b \n" \
+ " .long 1b,8b \n" \
+ ".previous"
+#else /* __s390x__ */
+#define __crypt_s390_fixup \
+ ".section .fixup,\"ax\" \n" \
+ "7: lhi %0,%h[e1] \n" \
+ " jg 6b \n" \
+ "8: lhi %0,%h[e2] \n" \
+ " jg 6b \n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\" \n" \
+ " .align 8 \n" \
+ " .quad 0b,7b \n" \
+ " .quad 1b,8b \n" \
+ ".previous"
+#endif /* __s390x__ */
+
+/*
+ * Standard code for setting the result of s390 crypto instructions.
+ * %0: the register which will receive the result
+ * [result]: the register containing the result (e.g. second operand length
+ * to compute number of processed bytes].
+ */
+#ifndef __s390x__
+#define __crypt_s390_set_result \
+ " lr %0,%[result] \n"
+#else /* __s390x__ */
+#define __crypt_s390_set_result \
+ " lgr %0,%[result] \n"
+#endif
+
+/*
+ * Executes the KM (CIPHER MESSAGE) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_km_func
+ * @param param: address of parameter block; see POP for details on each func
+ * @param dest: address of destination memory area
+ * @param src: address of source memory area
+ * @param src_len: length of src operand in bytes
+ * @returns < zero for failure, 0 for the query func, number of processed bytes
+ * for encryption/decryption funcs
+ */
+static inline int
+crypt_s390_km(long func, void* param, u8* dest, const u8* src, long src_len)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void* __param asm("1") = param;
+ register u8* __dest asm("4") = dest;
+ register const u8* __src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ int ret;
+
+ ret = 0;
+ __asm__ __volatile__ (
+ "0: .insn rre,0xB92E0000,%1,%2 \n" /* KM opcode */
+ "1: brc 1,0b \n" /* handle partial completion */
+ __crypt_s390_set_result
+ "6: \n"
+ __crypt_s390_fixup
+ : "+d" (ret), "+a" (__dest), "+a" (__src),
+ [result] "+d" (__src_len)
+ : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
+ "a" (__param)
+ : "cc", "memory"
+ );
+ if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
+ ret = src_len - ret;
+ }
+ return ret;
+}
+
+/*
+ * Executes the KMC (CIPHER MESSAGE WITH CHAINING) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_kmc_func
+ * @param param: address of parameter block; see POP for details on each func
+ * @param dest: address of destination memory area
+ * @param src: address of source memory area
+ * @param src_len: length of src operand in bytes
+ * @returns < zero for failure, 0 for the query func, number of processed bytes
+ * for encryption/decryption funcs
+ */
+static inline int
+crypt_s390_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void* __param asm("1") = param;
+ register u8* __dest asm("4") = dest;
+ register const u8* __src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ int ret;
+
+ ret = 0;
+ __asm__ __volatile__ (
+ "0: .insn rre,0xB92F0000,%1,%2 \n" /* KMC opcode */
+ "1: brc 1,0b \n" /* handle partial completion */
+ __crypt_s390_set_result
+ "6: \n"
+ __crypt_s390_fixup
+ : "+d" (ret), "+a" (__dest), "+a" (__src),
+ [result] "+d" (__src_len)
+ : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
+ "a" (__param)
+ : "cc", "memory"
+ );
+ if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
+ ret = src_len - ret;
+ }
+ return ret;
+}
+
+/*
+ * Executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) operation
+ * of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_kimd_func
+ * @param param: address of parameter block; see POP for details on each func
+ * @param src: address of source memory area
+ * @param src_len: length of src operand in bytes
+ * @returns < zero for failure, 0 for the query func, number of processed bytes
+ * for digest funcs
+ */
+static inline int
+crypt_s390_kimd(long func, void* param, const u8* src, long src_len)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void* __param asm("1") = param;
+ register const u8* __src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ int ret;
+
+ ret = 0;
+ __asm__ __volatile__ (
+ "0: .insn rre,0xB93E0000,%1,%1 \n" /* KIMD opcode */
+ "1: brc 1,0b \n" /* handle partical completion */
+ __crypt_s390_set_result
+ "6: \n"
+ __crypt_s390_fixup
+ : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
+ : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
+ "a" (__param)
+ : "cc", "memory"
+ );
+ if (ret >= 0 && (func & CRYPT_S390_FUNC_MASK)){
+ ret = src_len - ret;
+ }
+ return ret;
+}
+
+/*
+ * Executes the KLMD (COMPUTE LAST MESSAGE DIGEST) operation of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_klmd_func
+ * @param param: address of parameter block; see POP for details on each func
+ * @param src: address of source memory area
+ * @param src_len: length of src operand in bytes
+ * @returns < zero for failure, 0 for the query func, number of processed bytes
+ * for digest funcs
+ */
+static inline int
+crypt_s390_klmd(long func, void* param, const u8* src, long src_len)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void* __param asm("1") = param;
+ register const u8* __src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ int ret;
+
+ ret = 0;
+ __asm__ __volatile__ (
+ "0: .insn rre,0xB93F0000,%1,%1 \n" /* KLMD opcode */
+ "1: brc 1,0b \n" /* handle partical completion */
+ __crypt_s390_set_result
+ "6: \n"
+ __crypt_s390_fixup
+ : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
+ : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
+ "a" (__param)
+ : "cc", "memory"
+ );
+ if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
+ ret = src_len - ret;
+ }
+ return ret;
+}
+
+/*
+ * Executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) operation
+ * of the CPU.
+ * @param func: the function code passed to KM; see crypt_s390_klmd_func
+ * @param param: address of parameter block; see POP for details on each func
+ * @param src: address of source memory area
+ * @param src_len: length of src operand in bytes
+ * @returns < zero for failure, 0 for the query func, number of processed bytes
+ * for digest funcs
+ */
+static inline int
+crypt_s390_kmac(long func, void* param, const u8* src, long src_len)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void* __param asm("1") = param;
+ register const u8* __src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ int ret;
+
+ ret = 0;
+ __asm__ __volatile__ (
+ "0: .insn rre,0xB91E0000,%5,%5 \n" /* KMAC opcode */
+ "1: brc 1,0b \n" /* handle partical completion */
+ __crypt_s390_set_result
+ "6: \n"
+ __crypt_s390_fixup
+ : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
+ : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
+ "a" (__param)
+ : "cc", "memory"
+ );
+ if (ret >= 0 && func & CRYPT_S390_FUNC_MASK){
+ ret = src_len - ret;
+ }
+ return ret;
+}
+
+/**
+ * Tests if a specific crypto function is implemented on the machine.
+ * @param func: the function code of the specific function; 0 if op in general
+ * @return 1 if func available; 0 if func or op in general not available
+ */
+static inline int
+crypt_s390_func_available(int func)
+{
+ int ret;
+
+ struct crypt_s390_query_status status = {
+ .high = 0,
+ .low = 0
+ };
+ switch (func & CRYPT_S390_OP_MASK){
+ case CRYPT_S390_KM:
+ ret = crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
+ break;
+ case CRYPT_S390_KMC:
+ ret = crypt_s390_kmc(KMC_QUERY, &status, NULL, NULL, 0);
+ break;
+ case CRYPT_S390_KIMD:
+ ret = crypt_s390_kimd(KIMD_QUERY, &status, NULL, 0);
+ break;
+ case CRYPT_S390_KLMD:
+ ret = crypt_s390_klmd(KLMD_QUERY, &status, NULL, 0);
+ break;
+ case CRYPT_S390_KMAC:
+ ret = crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
+ break;
+ default:
+ ret = 0;
+ return ret;
+ }
+ if (ret >= 0){
+ func &= CRYPT_S390_FUNC_MASK;
+ func &= 0x7f; //mask modifier bit
+ if (func < 64){
+ ret = (status.high >> (64 - func - 1)) & 0x1;
+ } else {
+ ret = (status.low >> (128 - func - 1)) & 0x1;
+ }
+ } else {
+ ret = 0;
+ }
+ return ret;
+}
+
+#endif // _CRYPTO_ARCH_S390_CRYPT_S390_H
--- /dev/null
+/*
+ * 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");
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * Support for z990 cryptographic instructions.
- *
- * Copyright (C) 2003 IBM Deutschland 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.
- *
- */
-#ifndef _CRYPTO_ARCH_S390_CRYPT_Z990_H
-#define _CRYPTO_ARCH_S390_CRYPT_Z990_H
-
-#include <asm/errno.h>
-
-#define CRYPT_Z990_OP_MASK 0xFF00
-#define CRYPT_Z990_FUNC_MASK 0x00FF
-
-
-/*z990 cryptographic operations*/
-enum crypt_z990_operations {
- CRYPT_Z990_KM = 0x0100,
- CRYPT_Z990_KMC = 0x0200,
- CRYPT_Z990_KIMD = 0x0300,
- CRYPT_Z990_KLMD = 0x0400,
- CRYPT_Z990_KMAC = 0x0500
-};
-
-/*function codes for KM (CIPHER MESSAGE) instruction*/
-enum crypt_z990_km_func {
- KM_QUERY = CRYPT_Z990_KM | 0,
- KM_DEA_ENCRYPT = CRYPT_Z990_KM | 1,
- KM_DEA_DECRYPT = CRYPT_Z990_KM | 1 | 0x80, //modifier bit->decipher
- KM_TDEA_128_ENCRYPT = CRYPT_Z990_KM | 2,
- KM_TDEA_128_DECRYPT = CRYPT_Z990_KM | 2 | 0x80,
- KM_TDEA_192_ENCRYPT = CRYPT_Z990_KM | 3,
- KM_TDEA_192_DECRYPT = CRYPT_Z990_KM | 3 | 0x80,
-};
-
-/*function codes for KMC (CIPHER MESSAGE WITH CHAINING) instruction*/
-enum crypt_z990_kmc_func {
- KMC_QUERY = CRYPT_Z990_KMC | 0,
- KMC_DEA_ENCRYPT = CRYPT_Z990_KMC | 1,
- KMC_DEA_DECRYPT = CRYPT_Z990_KMC | 1 | 0x80, //modifier bit->decipher
- KMC_TDEA_128_ENCRYPT = CRYPT_Z990_KMC | 2,
- KMC_TDEA_128_DECRYPT = CRYPT_Z990_KMC | 2 | 0x80,
- KMC_TDEA_192_ENCRYPT = CRYPT_Z990_KMC | 3,
- KMC_TDEA_192_DECRYPT = CRYPT_Z990_KMC | 3 | 0x80,
-};
-
-/*function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) instruction*/
-enum crypt_z990_kimd_func {
- KIMD_QUERY = CRYPT_Z990_KIMD | 0,
- KIMD_SHA_1 = CRYPT_Z990_KIMD | 1,
-};
-
-/*function codes for KLMD (COMPUTE LAST MESSAGE DIGEST) instruction*/
-enum crypt_z990_klmd_func {
- KLMD_QUERY = CRYPT_Z990_KLMD | 0,
- KLMD_SHA_1 = CRYPT_Z990_KLMD | 1,
-};
-
-/*function codes for KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) instruction*/
-enum crypt_z990_kmac_func {
- KMAC_QUERY = CRYPT_Z990_KMAC | 0,
- KMAC_DEA = CRYPT_Z990_KMAC | 1,
- KMAC_TDEA_128 = CRYPT_Z990_KMAC | 2,
- KMAC_TDEA_192 = CRYPT_Z990_KMAC | 3
-};
-
-/*status word for z990 crypto instructions' QUERY functions*/
-struct crypt_z990_query_status {
- u64 high;
- u64 low;
-};
-
-/*
- * Standard fixup and ex_table sections for crypt_z990 inline functions.
- * label 0: the z990 crypto operation
- * label 1: just after 1 to catch illegal operation exception on non-z990
- * label 6: the return point after fixup
- * label 7: set error value if exception _in_ crypto operation
- * label 8: set error value if illegal operation exception
- * [ret] is the variable to receive the error code
- * [ERR] is the error code value
- */
-#ifndef __s390x__
-#define __crypt_z990_fixup \
- ".section .fixup,\"ax\" \n" \
- "7: lhi %0,%h[e1] \n" \
- " bras 1,9f \n" \
- " .long 6b \n" \
- "8: lhi %0,%h[e2] \n" \
- " bras 1,9f \n" \
- " .long 6b \n" \
- "9: l 1,0(1) \n" \
- " br 1 \n" \
- ".previous \n" \
- ".section __ex_table,\"a\" \n" \
- " .align 4 \n" \
- " .long 0b,7b \n" \
- " .long 1b,8b \n" \
- ".previous"
-#else /* __s390x__ */
-#define __crypt_z990_fixup \
- ".section .fixup,\"ax\" \n" \
- "7: lhi %0,%h[e1] \n" \
- " jg 6b \n" \
- "8: lhi %0,%h[e2] \n" \
- " jg 6b \n" \
- ".previous\n" \
- ".section __ex_table,\"a\" \n" \
- " .align 8 \n" \
- " .quad 0b,7b \n" \
- " .quad 1b,8b \n" \
- ".previous"
-#endif /* __s390x__ */
-
-/*
- * Standard code for setting the result of z990 crypto instructions.
- * %0: the register which will receive the result
- * [result]: the register containing the result (e.g. second operand length
- * to compute number of processed bytes].
- */
-#ifndef __s390x__
-#define __crypt_z990_set_result \
- " lr %0,%[result] \n"
-#else /* __s390x__ */
-#define __crypt_z990_set_result \
- " lgr %0,%[result] \n"
-#endif
-
-/*
- * Executes the KM (CIPHER MESSAGE) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_km_func
- * @param param: address of parameter block; see POP for details on each func
- * @param dest: address of destination memory area
- * @param src: address of source memory area
- * @param src_len: length of src operand in bytes
- * @returns < zero for failure, 0 for the query func, number of processed bytes
- * for encryption/decryption funcs
- */
-static inline int
-crypt_z990_km(long func, void* param, u8* dest, const u8* src, long src_len)
-{
- register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
- register void* __param asm("1") = param;
- register u8* __dest asm("4") = dest;
- register const u8* __src asm("2") = src;
- register long __src_len asm("3") = src_len;
- int ret;
-
- ret = 0;
- __asm__ __volatile__ (
- "0: .insn rre,0xB92E0000,%1,%2 \n" //KM opcode
- "1: brc 1,0b \n" //handle partial completion
- __crypt_z990_set_result
- "6: \n"
- __crypt_z990_fixup
- : "+d" (ret), "+a" (__dest), "+a" (__src),
- [result] "+d" (__src_len)
- : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
- "a" (__param)
- : "cc", "memory"
- );
- if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
- ret = src_len - ret;
- }
- return ret;
-}
-
-/*
- * Executes the KMC (CIPHER MESSAGE WITH CHAINING) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_kmc_func
- * @param param: address of parameter block; see POP for details on each func
- * @param dest: address of destination memory area
- * @param src: address of source memory area
- * @param src_len: length of src operand in bytes
- * @returns < zero for failure, 0 for the query func, number of processed bytes
- * for encryption/decryption funcs
- */
-static inline int
-crypt_z990_kmc(long func, void* param, u8* dest, const u8* src, long src_len)
-{
- register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
- register void* __param asm("1") = param;
- register u8* __dest asm("4") = dest;
- register const u8* __src asm("2") = src;
- register long __src_len asm("3") = src_len;
- int ret;
-
- ret = 0;
- __asm__ __volatile__ (
- "0: .insn rre,0xB92F0000,%1,%2 \n" //KMC opcode
- "1: brc 1,0b \n" //handle partial completion
- __crypt_z990_set_result
- "6: \n"
- __crypt_z990_fixup
- : "+d" (ret), "+a" (__dest), "+a" (__src),
- [result] "+d" (__src_len)
- : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
- "a" (__param)
- : "cc", "memory"
- );
- if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
- ret = src_len - ret;
- }
- return ret;
-}
-
-/*
- * Executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) operation
- * of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_kimd_func
- * @param param: address of parameter block; see POP for details on each func
- * @param src: address of source memory area
- * @param src_len: length of src operand in bytes
- * @returns < zero for failure, 0 for the query func, number of processed bytes
- * for digest funcs
- */
-static inline int
-crypt_z990_kimd(long func, void* param, const u8* src, long src_len)
-{
- register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
- register void* __param asm("1") = param;
- register const u8* __src asm("2") = src;
- register long __src_len asm("3") = src_len;
- int ret;
-
- ret = 0;
- __asm__ __volatile__ (
- "0: .insn rre,0xB93E0000,%1,%1 \n" //KIMD opcode
- "1: brc 1,0b \n" /*handle partical completion of kimd*/
- __crypt_z990_set_result
- "6: \n"
- __crypt_z990_fixup
- : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
- : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
- "a" (__param)
- : "cc", "memory"
- );
- if (ret >= 0 && (func & CRYPT_Z990_FUNC_MASK)){
- ret = src_len - ret;
- }
- return ret;
-}
-
-/*
- * Executes the KLMD (COMPUTE LAST MESSAGE DIGEST) operation of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_klmd_func
- * @param param: address of parameter block; see POP for details on each func
- * @param src: address of source memory area
- * @param src_len: length of src operand in bytes
- * @returns < zero for failure, 0 for the query func, number of processed bytes
- * for digest funcs
- */
-static inline int
-crypt_z990_klmd(long func, void* param, const u8* src, long src_len)
-{
- register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
- register void* __param asm("1") = param;
- register const u8* __src asm("2") = src;
- register long __src_len asm("3") = src_len;
- int ret;
-
- ret = 0;
- __asm__ __volatile__ (
- "0: .insn rre,0xB93F0000,%1,%1 \n" //KLMD opcode
- "1: brc 1,0b \n" /*handle partical completion of klmd*/
- __crypt_z990_set_result
- "6: \n"
- __crypt_z990_fixup
- : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
- : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
- "a" (__param)
- : "cc", "memory"
- );
- if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
- ret = src_len - ret;
- }
- return ret;
-}
-
-/*
- * Executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) operation
- * of the z990 CPU.
- * @param func: the function code passed to KM; see crypt_z990_klmd_func
- * @param param: address of parameter block; see POP for details on each func
- * @param src: address of source memory area
- * @param src_len: length of src operand in bytes
- * @returns < zero for failure, 0 for the query func, number of processed bytes
- * for digest funcs
- */
-static inline int
-crypt_z990_kmac(long func, void* param, const u8* src, long src_len)
-{
- register long __func asm("0") = func & CRYPT_Z990_FUNC_MASK;
- register void* __param asm("1") = param;
- register const u8* __src asm("2") = src;
- register long __src_len asm("3") = src_len;
- int ret;
-
- ret = 0;
- __asm__ __volatile__ (
- "0: .insn rre,0xB91E0000,%5,%5 \n" //KMAC opcode
- "1: brc 1,0b \n" /*handle partical completion of klmd*/
- __crypt_z990_set_result
- "6: \n"
- __crypt_z990_fixup
- : "+d" (ret), "+a" (__src), [result] "+d" (__src_len)
- : [e1] "K" (-EFAULT), [e2] "K" (-ENOSYS), "d" (__func),
- "a" (__param)
- : "cc", "memory"
- );
- if (ret >= 0 && func & CRYPT_Z990_FUNC_MASK){
- ret = src_len - ret;
- }
- return ret;
-}
-
-/**
- * Tests if a specific z990 crypto function is implemented on the machine.
- * @param func: the function code of the specific function; 0 if op in general
- * @return 1 if func available; 0 if func or op in general not available
- */
-static inline int
-crypt_z990_func_available(int func)
-{
- int ret;
-
- struct crypt_z990_query_status status = {
- .high = 0,
- .low = 0
- };
- switch (func & CRYPT_Z990_OP_MASK){
- case CRYPT_Z990_KM:
- ret = crypt_z990_km(KM_QUERY, &status, NULL, NULL, 0);
- break;
- case CRYPT_Z990_KMC:
- ret = crypt_z990_kmc(KMC_QUERY, &status, NULL, NULL, 0);
- break;
- case CRYPT_Z990_KIMD:
- ret = crypt_z990_kimd(KIMD_QUERY, &status, NULL, 0);
- break;
- case CRYPT_Z990_KLMD:
- ret = crypt_z990_klmd(KLMD_QUERY, &status, NULL, 0);
- break;
- case CRYPT_Z990_KMAC:
- ret = crypt_z990_kmac(KMAC_QUERY, &status, NULL, 0);
- break;
- default:
- ret = 0;
- return ret;
- }
- if (ret >= 0){
- func &= CRYPT_Z990_FUNC_MASK;
- func &= 0x7f; //mask modifier bit
- if (func < 64){
- ret = (status.high >> (64 - func - 1)) & 0x1;
- } else {
- ret = (status.low >> (128 - func - 1)) & 0x1;
- }
- } else {
- ret = 0;
- }
- return ret;
-}
-
-
-#endif // _CRYPTO_ARCH_S390_CRYPT_Z990_H
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * Support for z990 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_z990.h"
-
-static void
-query_available_functions(void)
-{
- printk(KERN_INFO "#####################\n");
- //query available KM functions
- printk(KERN_INFO "KM_QUERY: %d\n",
- crypt_z990_func_available(KM_QUERY));
- printk(KERN_INFO "KM_DEA: %d\n",
- crypt_z990_func_available(KM_DEA_ENCRYPT));
- printk(KERN_INFO "KM_TDEA_128: %d\n",
- crypt_z990_func_available(KM_TDEA_128_ENCRYPT));
- printk(KERN_INFO "KM_TDEA_192: %d\n",
- crypt_z990_func_available(KM_TDEA_192_ENCRYPT));
- //query available KMC functions
- printk(KERN_INFO "KMC_QUERY: %d\n",
- crypt_z990_func_available(KMC_QUERY));
- printk(KERN_INFO "KMC_DEA: %d\n",
- crypt_z990_func_available(KMC_DEA_ENCRYPT));
- printk(KERN_INFO "KMC_TDEA_128: %d\n",
- crypt_z990_func_available(KMC_TDEA_128_ENCRYPT));
- printk(KERN_INFO "KMC_TDEA_192: %d\n",
- crypt_z990_func_available(KMC_TDEA_192_ENCRYPT));
- //query available KIMD fucntions
- printk(KERN_INFO "KIMD_QUERY: %d\n",
- crypt_z990_func_available(KIMD_QUERY));
- printk(KERN_INFO "KIMD_SHA_1: %d\n",
- crypt_z990_func_available(KIMD_SHA_1));
- //query available KLMD functions
- printk(KERN_INFO "KLMD_QUERY: %d\n",
- crypt_z990_func_available(KLMD_QUERY));
- printk(KERN_INFO "KLMD_SHA_1: %d\n",
- crypt_z990_func_available(KLMD_SHA_1));
- //query available KMAC functions
- printk(KERN_INFO "KMAC_QUERY: %d\n",
- crypt_z990_func_available(KMAC_QUERY));
- printk(KERN_INFO "KMAC_DEA: %d\n",
- crypt_z990_func_available(KMAC_DEA));
- printk(KERN_INFO "KMAC_TDEA_128: %d\n",
- crypt_z990_func_available(KMAC_TDEA_128));
- printk(KERN_INFO "KMAC_TDEA_192: %d\n",
- crypt_z990_func_available(KMAC_TDEA_192));
-}
-
-static int
-init(void)
-{
- struct crypt_z990_query_status status = {
- .high = 0,
- .low = 0
- };
-
- printk(KERN_INFO "crypt_z990: querying available crypto functions\n");
- crypt_z990_km(KM_QUERY, &status, NULL, NULL, 0);
- printk(KERN_INFO "KM: %016llx %016llx\n",
- (unsigned long long) status.high,
- (unsigned long long) status.low);
- status.high = status.low = 0;
- crypt_z990_kmc(KMC_QUERY, &status, NULL, NULL, 0);
- printk(KERN_INFO "KMC: %016llx %016llx\n",
- (unsigned long long) status.high,
- (unsigned long long) status.low);
- status.high = status.low = 0;
- crypt_z990_kimd(KIMD_QUERY, &status, NULL, 0);
- printk(KERN_INFO "KIMD: %016llx %016llx\n",
- (unsigned long long) status.high,
- (unsigned long long) status.low);
- status.high = status.low = 0;
- crypt_z990_klmd(KLMD_QUERY, &status, NULL, 0);
- printk(KERN_INFO "KLMD: %016llx %016llx\n",
- (unsigned long long) status.high,
- (unsigned long long) status.low);
- status.high = status.low = 0;
- crypt_z990_kmac(KMAC_QUERY, &status, NULL, 0);
- printk(KERN_INFO "KMAC: %016llx %016llx\n",
- (unsigned long long) status.high,
- (unsigned long long) status.low);
-
- query_available_functions();
- return -1;
-}
-
-static void __exit
-cleanup(void)
-{
-}
-
-module_init(init);
-module_exit(cleanup);
-
-MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the DES Cipher Algorithm.
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+#include "crypt_s390.h"
+#include "crypto_des.h"
+
+#define DES_BLOCK_SIZE 8
+#define DES_KEY_SIZE 8
+
+#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE)
+#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE
+
+#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
+#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
+
+struct crypt_s390_des_ctx {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES_KEY_SIZE];
+};
+
+struct crypt_s390_des3_128_ctx {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES3_128_KEY_SIZE];
+};
+
+struct crypt_s390_des3_192_ctx {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES3_192_KEY_SIZE];
+};
+
+static int
+des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+{
+ struct crypt_s390_des_ctx *dctx;
+ int ret;
+
+ dctx = ctx;
+ //test if key is valid (not a weak key)
+ ret = crypto_des_check_key(key, keylen, flags);
+ if (ret == 0){
+ memcpy(dctx->key, key, keylen);
+ }
+ return ret;
+}
+
+
+static void
+des_encrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
+}
+
+static void
+des_decrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_DEA_DECRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
+}
+
+static struct crypto_alg des_alg = {
+ .cra_name = "des",
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
+ .cra_u = { .cipher = {
+ .cia_min_keysize = DES_KEY_SIZE,
+ .cia_max_keysize = DES_KEY_SIZE,
+ .cia_setkey = des_setkey,
+ .cia_encrypt = des_encrypt,
+ .cia_decrypt = des_decrypt } }
+};
+
+/*
+ * RFC2451:
+ *
+ * For DES-EDE3, there is no known need to reject weak or
+ * complementation keys. Any weakness is obviated by the use of
+ * multiple keys.
+ *
+ * However, if the two independent 64-bit keys are equal,
+ * then the DES3 operation is simply the same as DES.
+ * Implementers MUST reject keys that exhibit this property.
+ *
+ */
+static int
+des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+{
+ int i, ret;
+ struct crypt_s390_des3_128_ctx *dctx;
+ const u8* temp_key = key;
+
+ dctx = ctx;
+ if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
+
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
+ return -EINVAL;
+ }
+ for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
+ ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
+ if (ret < 0)
+ return ret;
+ }
+ memcpy(dctx->key, key, keylen);
+ return 0;
+}
+
+static void
+des3_128_encrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des3_128_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
+ DES3_128_BLOCK_SIZE);
+}
+
+static void
+des3_128_decrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des3_128_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
+ DES3_128_BLOCK_SIZE);
+}
+
+static struct crypto_alg des3_128_alg = {
+ .cra_name = "des3_ede128",
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES3_128_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
+ .cra_u = { .cipher = {
+ .cia_min_keysize = DES3_128_KEY_SIZE,
+ .cia_max_keysize = DES3_128_KEY_SIZE,
+ .cia_setkey = des3_128_setkey,
+ .cia_encrypt = des3_128_encrypt,
+ .cia_decrypt = des3_128_decrypt } }
+};
+
+/*
+ * RFC2451:
+ *
+ * For DES-EDE3, there is no known need to reject weak or
+ * complementation keys. Any weakness is obviated by the use of
+ * multiple keys.
+ *
+ * However, if the first two or last two independent 64-bit keys are
+ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
+ * same as DES. Implementers MUST reject keys that exhibit this
+ * property.
+ *
+ */
+static int
+des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+{
+ int i, ret;
+ struct crypt_s390_des3_192_ctx *dctx;
+ const u8* temp_key;
+
+ dctx = ctx;
+ temp_key = key;
+ if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
+ memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
+ DES_KEY_SIZE))) {
+
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
+ return -EINVAL;
+ }
+ for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
+ ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
+ if (ret < 0){
+ return ret;
+ }
+ }
+ memcpy(dctx->key, key, keylen);
+ return 0;
+}
+
+static void
+des3_192_encrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des3_192_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
+ DES3_192_BLOCK_SIZE);
+}
+
+static void
+des3_192_decrypt(void *ctx, u8 *dst, const u8 *src)
+{
+ struct crypt_s390_des3_192_ctx *dctx;
+
+ dctx = ctx;
+ crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
+ DES3_192_BLOCK_SIZE);
+}
+
+static struct crypto_alg des3_192_alg = {
+ .cra_name = "des3_ede",
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES3_192_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
+ .cra_u = { .cipher = {
+ .cia_min_keysize = DES3_192_KEY_SIZE,
+ .cia_max_keysize = DES3_192_KEY_SIZE,
+ .cia_setkey = des3_192_setkey,
+ .cia_encrypt = des3_192_encrypt,
+ .cia_decrypt = des3_192_decrypt } }
+};
+
+
+
+static int
+init(void)
+{
+ int ret;
+
+ if (!crypt_s390_func_available(KM_DEA_ENCRYPT) ||
+ !crypt_s390_func_available(KM_TDEA_128_ENCRYPT) ||
+ !crypt_s390_func_available(KM_TDEA_192_ENCRYPT)){
+ return -ENOSYS;
+ }
+
+ ret = 0;
+ ret |= (crypto_register_alg(&des_alg) == 0)? 0:1;
+ ret |= (crypto_register_alg(&des3_128_alg) == 0)? 0:2;
+ ret |= (crypto_register_alg(&des3_192_alg) == 0)? 0:4;
+ if (ret){
+ crypto_unregister_alg(&des3_192_alg);
+ crypto_unregister_alg(&des3_128_alg);
+ crypto_unregister_alg(&des_alg);
+ return -EEXIST;
+ }
+
+ printk(KERN_INFO "crypt_s390: des_s390 loaded.\n");
+ return 0;
+}
+
+static void __exit
+fini(void)
+{
+ crypto_unregister_alg(&des3_192_alg);
+ crypto_unregister_alg(&des3_128_alg);
+ crypto_unregister_alg(&des_alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_ALIAS("des");
+MODULE_ALIAS("des3_ede");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * z990 implementation of the DES Cipher Algorithm.
- *
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <asm/scatterlist.h>
-#include <linux/crypto.h>
-#include "crypt_z990.h"
-#include "crypto_des.h"
-
-#define DES_BLOCK_SIZE 8
-#define DES_KEY_SIZE 8
-
-#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE)
-#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE
-
-#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
-#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
-
-struct crypt_z990_des_ctx {
- u8 iv[DES_BLOCK_SIZE];
- u8 key[DES_KEY_SIZE];
-};
-
-struct crypt_z990_des3_128_ctx {
- u8 iv[DES_BLOCK_SIZE];
- u8 key[DES3_128_KEY_SIZE];
-};
-
-struct crypt_z990_des3_192_ctx {
- u8 iv[DES_BLOCK_SIZE];
- u8 key[DES3_192_KEY_SIZE];
-};
-
-static int
-des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
-{
- struct crypt_z990_des_ctx *dctx;
- int ret;
-
- dctx = ctx;
- //test if key is valid (not a weak key)
- ret = crypto_des_check_key(key, keylen, flags);
- if (ret == 0){
- memcpy(dctx->key, key, keylen);
- }
- return ret;
-}
-
-
-static void
-des_encrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_DEA_ENCRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
-}
-
-static void
-des_decrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_DEA_DECRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
-}
-
-static struct crypto_alg des_alg = {
- .cra_name = "des",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_z990_des_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = DES_KEY_SIZE,
- .cia_max_keysize = DES_KEY_SIZE,
- .cia_setkey = des_setkey,
- .cia_encrypt = des_encrypt,
- .cia_decrypt = des_decrypt } }
-};
-
-/*
- * RFC2451:
- *
- * For DES-EDE3, there is no known need to reject weak or
- * complementation keys. Any weakness is obviated by the use of
- * multiple keys.
- *
- * However, if the two independent 64-bit keys are equal,
- * then the DES3 operation is simply the same as DES.
- * Implementers MUST reject keys that exhibit this property.
- *
- */
-static int
-des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
-{
- int i, ret;
- struct crypt_z990_des3_128_ctx *dctx;
- const u8* temp_key = key;
-
- dctx = ctx;
- if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
-
- *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
- return -EINVAL;
- }
- for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
- ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
- if (ret < 0)
- return ret;
- }
- memcpy(dctx->key, key, keylen);
- return 0;
-}
-
-static void
-des3_128_encrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des3_128_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
- DES3_128_BLOCK_SIZE);
-}
-
-static void
-des3_128_decrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des3_128_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
- DES3_128_BLOCK_SIZE);
-}
-
-static struct crypto_alg des3_128_alg = {
- .cra_name = "des3_ede128",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES3_128_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_z990_des3_128_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = DES3_128_KEY_SIZE,
- .cia_max_keysize = DES3_128_KEY_SIZE,
- .cia_setkey = des3_128_setkey,
- .cia_encrypt = des3_128_encrypt,
- .cia_decrypt = des3_128_decrypt } }
-};
-
-/*
- * RFC2451:
- *
- * For DES-EDE3, there is no known need to reject weak or
- * complementation keys. Any weakness is obviated by the use of
- * multiple keys.
- *
- * However, if the first two or last two independent 64-bit keys are
- * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
- * same as DES. Implementers MUST reject keys that exhibit this
- * property.
- *
- */
-static int
-des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
-{
- int i, ret;
- struct crypt_z990_des3_192_ctx *dctx;
- const u8* temp_key;
-
- dctx = ctx;
- temp_key = key;
- if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
- memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
- DES_KEY_SIZE))) {
-
- *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
- return -EINVAL;
- }
- for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
- ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
- if (ret < 0){
- return ret;
- }
- }
- memcpy(dctx->key, key, keylen);
- return 0;
-}
-
-static void
-des3_192_encrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des3_192_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
- DES3_192_BLOCK_SIZE);
-}
-
-static void
-des3_192_decrypt(void *ctx, u8 *dst, const u8 *src)
-{
- struct crypt_z990_des3_192_ctx *dctx;
-
- dctx = ctx;
- crypt_z990_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
- DES3_192_BLOCK_SIZE);
-}
-
-static struct crypto_alg des3_192_alg = {
- .cra_name = "des3_ede",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_z990_des3_192_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = DES3_192_KEY_SIZE,
- .cia_max_keysize = DES3_192_KEY_SIZE,
- .cia_setkey = des3_192_setkey,
- .cia_encrypt = des3_192_encrypt,
- .cia_decrypt = des3_192_decrypt } }
-};
-
-
-
-static int
-init(void)
-{
- int ret;
-
- if (!crypt_z990_func_available(KM_DEA_ENCRYPT) ||
- !crypt_z990_func_available(KM_TDEA_128_ENCRYPT) ||
- !crypt_z990_func_available(KM_TDEA_192_ENCRYPT)){
- return -ENOSYS;
- }
-
- ret = 0;
- ret |= (crypto_register_alg(&des_alg) == 0)? 0:1;
- ret |= (crypto_register_alg(&des3_128_alg) == 0)? 0:2;
- ret |= (crypto_register_alg(&des3_192_alg) == 0)? 0:4;
- if (ret){
- crypto_unregister_alg(&des3_192_alg);
- crypto_unregister_alg(&des3_128_alg);
- crypto_unregister_alg(&des_alg);
- return -EEXIST;
- }
-
- printk(KERN_INFO "crypt_z990: des_z990 loaded.\n");
- return 0;
-}
-
-static void __exit
-fini(void)
-{
- crypto_unregister_alg(&des3_192_alg);
- crypto_unregister_alg(&des3_128_alg);
- crypto_unregister_alg(&des_alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_ALIAS("des");
-MODULE_ALIAS("des3_ede");
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
--- /dev/null
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the SHA1 Secure Hash Algorithm.
+ *
+ * Derived from cryptoapi implementation, adapted for in-place
+ * scatterlist interface. Originally based on the public domain
+ * implementation written by Steve Reid.
+ *
+ * s390 Version:
+ * Copyright (C) 2003 IBM Deutschland GmbH, IBM Corporation
+ * Author(s): Thomas Spatzier (tspat@de.ibm.com)
+ *
+ * Derived from "crypto/sha1.c"
+ * Copyright (c) Alan Smithee.
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/crypto.h>
+#include <asm/scatterlist.h>
+#include <asm/byteorder.h>
+#include "crypt_s390.h"
+
+#define SHA1_DIGEST_SIZE 20
+#define SHA1_BLOCK_SIZE 64
+
+struct crypt_s390_sha1_ctx {
+ u64 count;
+ u32 state[5];
+ u32 buf_len;
+ u8 buffer[2 * SHA1_BLOCK_SIZE];
+};
+
+static void
+sha1_init(void *ctx)
+{
+ static const struct crypt_s390_sha1_ctx initstate = {
+ .state = {
+ 0x67452301,
+ 0xEFCDAB89,
+ 0x98BADCFE,
+ 0x10325476,
+ 0xC3D2E1F0
+ },
+ };
+ memcpy(ctx, &initstate, sizeof(initstate));
+}
+
+static void
+sha1_update(void *ctx, const u8 *data, unsigned int len)
+{
+ struct crypt_s390_sha1_ctx *sctx;
+ long imd_len;
+
+ sctx = ctx;
+ sctx->count += len * 8; //message bit length
+
+ //anything in buffer yet? -> must be completed
+ if (sctx->buf_len && (sctx->buf_len + len) >= SHA1_BLOCK_SIZE) {
+ //complete full block and hash
+ memcpy(sctx->buffer + sctx->buf_len, data,
+ SHA1_BLOCK_SIZE - sctx->buf_len);
+ crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buffer,
+ SHA1_BLOCK_SIZE);
+ data += SHA1_BLOCK_SIZE - sctx->buf_len;
+ len -= SHA1_BLOCK_SIZE - sctx->buf_len;
+ sctx->buf_len = 0;
+ }
+
+ //rest of data contains full blocks?
+ imd_len = len & ~0x3ful;
+ if (imd_len){
+ crypt_s390_kimd(KIMD_SHA_1, sctx->state, data, imd_len);
+ data += imd_len;
+ len -= imd_len;
+ }
+ //anything left? store in buffer
+ if (len){
+ memcpy(sctx->buffer + sctx->buf_len , data, len);
+ sctx->buf_len += len;
+ }
+}
+
+
+static void
+pad_message(struct crypt_s390_sha1_ctx* sctx)
+{
+ int index;
+
+ index = sctx->buf_len;
+ sctx->buf_len = (sctx->buf_len < 56)?
+ SHA1_BLOCK_SIZE:2 * SHA1_BLOCK_SIZE;
+ //start pad with 1
+ sctx->buffer[index] = 0x80;
+ //pad with zeros
+ index++;
+ memset(sctx->buffer + index, 0x00, sctx->buf_len - index);
+ //append length
+ memcpy(sctx->buffer + sctx->buf_len - 8, &sctx->count,
+ sizeof sctx->count);
+}
+
+/* Add padding and return the message digest. */
+static void
+sha1_final(void* ctx, u8 *out)
+{
+ struct crypt_s390_sha1_ctx *sctx = ctx;
+
+ //must perform manual padding
+ pad_message(sctx);
+ crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buffer, sctx->buf_len);
+ //copy digest to out
+ memcpy(out, sctx->state, SHA1_DIGEST_SIZE);
+ /* Wipe context */
+ memset(sctx, 0, sizeof *sctx);
+}
+
+static struct crypto_alg alg = {
+ .cra_name = "sha1",
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypt_s390_sha1_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(alg.cra_list),
+ .cra_u = { .digest = {
+ .dia_digestsize = SHA1_DIGEST_SIZE,
+ .dia_init = sha1_init,
+ .dia_update = sha1_update,
+ .dia_final = sha1_final } }
+};
+
+static int
+init(void)
+{
+ int ret = -ENOSYS;
+
+ if (crypt_s390_func_available(KIMD_SHA_1)){
+ ret = crypto_register_alg(&alg);
+ if (ret == 0){
+ printk(KERN_INFO "crypt_s390: sha1_s390 loaded.\n");
+ }
+ }
+ return ret;
+}
+
+static void __exit
+fini(void)
+{
+ crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_ALIAS("sha1");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * z990 implementation of the SHA1 Secure Hash Algorithm.
- *
- * Derived from cryptoapi implementation, adapted for in-place
- * scatterlist interface. Originally based on the public domain
- * implementation written by Steve Reid.
- *
- * s390 Version:
- * Copyright (C) 2003 IBM Deutschland GmbH, IBM Corporation
- * Author(s): Thomas Spatzier (tspat@de.ibm.com)
- *
- * Derived from "crypto/sha1.c"
- * Copyright (c) Alan Smithee.
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
- *
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/crypto.h>
-#include <asm/scatterlist.h>
-#include <asm/byteorder.h>
-#include "crypt_z990.h"
-
-#define SHA1_DIGEST_SIZE 20
-#define SHA1_BLOCK_SIZE 64
-
-struct crypt_z990_sha1_ctx {
- u64 count;
- u32 state[5];
- u32 buf_len;
- u8 buffer[2 * SHA1_BLOCK_SIZE];
-};
-
-static void
-sha1_init(void *ctx)
-{
- static const struct crypt_z990_sha1_ctx initstate = {
- .state = {
- 0x67452301,
- 0xEFCDAB89,
- 0x98BADCFE,
- 0x10325476,
- 0xC3D2E1F0
- },
- };
- memcpy(ctx, &initstate, sizeof(initstate));
-}
-
-static void
-sha1_update(void *ctx, const u8 *data, unsigned int len)
-{
- struct crypt_z990_sha1_ctx *sctx;
- long imd_len;
-
- sctx = ctx;
- sctx->count += len * 8; //message bit length
-
- //anything in buffer yet? -> must be completed
- if (sctx->buf_len && (sctx->buf_len + len) >= SHA1_BLOCK_SIZE) {
- //complete full block and hash
- memcpy(sctx->buffer + sctx->buf_len, data,
- SHA1_BLOCK_SIZE - sctx->buf_len);
- crypt_z990_kimd(KIMD_SHA_1, sctx->state, sctx->buffer,
- SHA1_BLOCK_SIZE);
- data += SHA1_BLOCK_SIZE - sctx->buf_len;
- len -= SHA1_BLOCK_SIZE - sctx->buf_len;
- sctx->buf_len = 0;
- }
-
- //rest of data contains full blocks?
- imd_len = len & ~0x3ful;
- if (imd_len){
- crypt_z990_kimd(KIMD_SHA_1, sctx->state, data, imd_len);
- data += imd_len;
- len -= imd_len;
- }
- //anything left? store in buffer
- if (len){
- memcpy(sctx->buffer + sctx->buf_len , data, len);
- sctx->buf_len += len;
- }
-}
-
-
-static void
-pad_message(struct crypt_z990_sha1_ctx* sctx)
-{
- int index;
-
- index = sctx->buf_len;
- sctx->buf_len = (sctx->buf_len < 56)?
- SHA1_BLOCK_SIZE:2 * SHA1_BLOCK_SIZE;
- //start pad with 1
- sctx->buffer[index] = 0x80;
- //pad with zeros
- index++;
- memset(sctx->buffer + index, 0x00, sctx->buf_len - index);
- //append length
- memcpy(sctx->buffer + sctx->buf_len - 8, &sctx->count,
- sizeof sctx->count);
-}
-
-/* Add padding and return the message digest. */
-static void
-sha1_final(void* ctx, u8 *out)
-{
- struct crypt_z990_sha1_ctx *sctx = ctx;
-
- //must perform manual padding
- pad_message(sctx);
- crypt_z990_kimd(KIMD_SHA_1, sctx->state, sctx->buffer, sctx->buf_len);
- //copy digest to out
- memcpy(out, sctx->state, SHA1_DIGEST_SIZE);
- /* Wipe context */
- memset(sctx, 0, sizeof *sctx);
-}
-
-static struct crypto_alg alg = {
- .cra_name = "sha1",
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_z990_sha1_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = SHA1_DIGEST_SIZE,
- .dia_init = sha1_init,
- .dia_update = sha1_update,
- .dia_final = sha1_final } }
-};
-
-static int
-init(void)
-{
- int ret = -ENOSYS;
-
- if (crypt_z990_func_available(KIMD_SHA_1)){
- ret = crypto_register_alg(&alg);
- if (ret == 0){
- printk(KERN_INFO "crypt_z990: sha1_z990 loaded.\n");
- }
- }
- return ret;
-}
-
-static void __exit
-fini(void)
-{
- crypto_unregister_alg(&alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_ALIAS("sha1");
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_SHA1 is not set
-# CONFIG_CRYPTO_SHA1_Z990 is not set
+# CONFIG_CRYPTO_SHA1_S390 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_DES is not set
-# CONFIG_CRYPTO_DES_Z990 is not set
+# CONFIG_CRYPTO_DES_S390 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
-config CRYPTO_SHA1_Z990
- tristate "SHA1 digest algorithm for IBM zSeries z990"
+config CRYPTO_SHA1_S390
+ tristate "SHA1 digest algorithm (s390)"
depends on CRYPTO && ARCH_S390
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
-config CRYPTO_DES_Z990
- tristate "DES and Triple DES cipher algorithms for IBM zSeries z990"
+config CRYPTO_DES_S390
+ tristate "DES and Triple DES cipher algorithms (s390)"
depends on CRYPTO && ARCH_S390
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
projects / powerpc.git / commitdiff