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Diffstat (limited to 'arch/s390/crypto/sha_common.c')
-rw-r--r--arch/s390/crypto/sha_common.c117
1 files changed, 0 insertions, 117 deletions
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
deleted file mode 100644
index d6f839618794..000000000000
--- a/arch/s390/crypto/sha_common.c
+++ /dev/null
@@ -1,117 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Cryptographic API.
- *
- * s390 generic implementation of the SHA Secure Hash Algorithms.
- *
- * Copyright IBM Corp. 2007
- * Author(s): Jan Glauber (jang@de.ibm.com)
- */
-
-#include <crypto/internal/hash.h>
-#include <linux/export.h>
-#include <linux/module.h>
-#include <asm/cpacf.h>
-#include "sha.h"
-
-int s390_sha_update_blocks(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- unsigned int bsize = crypto_shash_blocksize(desc->tfm);
- struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
- unsigned int n;
- int fc;
-
- fc = ctx->func;
- if (ctx->first_message_part)
- fc |= CPACF_KIMD_NIP;
-
- /* process as many blocks as possible */
- n = (len / bsize) * bsize;
- ctx->count += n;
- switch (ctx->func) {
- case CPACF_KLMD_SHA_512:
- case CPACF_KLMD_SHA3_384:
- if (ctx->count < n)
- ctx->sha512.count_hi++;
- break;
- }
- cpacf_kimd(fc, ctx->state, data, n);
- ctx->first_message_part = 0;
- return len - n;
-}
-EXPORT_SYMBOL_GPL(s390_sha_update_blocks);
-
-static int s390_crypto_shash_parmsize(int func)
-{
- switch (func) {
- case CPACF_KLMD_SHA_1:
- return 20;
- case CPACF_KLMD_SHA_256:
- return 32;
- case CPACF_KLMD_SHA_512:
- return 64;
- case CPACF_KLMD_SHA3_224:
- case CPACF_KLMD_SHA3_256:
- case CPACF_KLMD_SHA3_384:
- case CPACF_KLMD_SHA3_512:
- return 200;
- default:
- return -EINVAL;
- }
-}
-
-int s390_sha_finup(struct shash_desc *desc, const u8 *src, unsigned int len,
- u8 *out)
-{
- struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
- int mbl_offset, fc;
- u64 bits;
-
- ctx->count += len;
-
- bits = ctx->count * 8;
- mbl_offset = s390_crypto_shash_parmsize(ctx->func);
- if (mbl_offset < 0)
- return -EINVAL;
-
- mbl_offset = mbl_offset / sizeof(u32);
-
- /* set total msg bit length (mbl) in CPACF parmblock */
- switch (ctx->func) {
- case CPACF_KLMD_SHA_512:
- /* The SHA512 parmblock has a 128-bit mbl field. */
- if (ctx->count < len)
- ctx->sha512.count_hi++;
- ctx->sha512.count_hi <<= 3;
- ctx->sha512.count_hi |= ctx->count >> 61;
- mbl_offset += sizeof(u64) / sizeof(u32);
- fallthrough;
- case CPACF_KLMD_SHA_1:
- case CPACF_KLMD_SHA_256:
- memcpy(ctx->state + mbl_offset, &bits, sizeof(bits));
- break;
- case CPACF_KLMD_SHA3_224:
- case CPACF_KLMD_SHA3_256:
- case CPACF_KLMD_SHA3_384:
- case CPACF_KLMD_SHA3_512:
- break;
- default:
- return -EINVAL;
- }
-
- fc = ctx->func;
- fc |= test_facility(86) ? CPACF_KLMD_DUFOP : 0;
- if (ctx->first_message_part)
- fc |= CPACF_KLMD_NIP;
- cpacf_klmd(fc, ctx->state, src, len);
-
- /* copy digest to out */
- memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm));
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(s390_sha_finup);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("s390 SHA cipher common functions");