^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Cryptographic API.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * s390 implementation of the SHA1 Secure Hash Algorithm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Derived from cryptoapi implementation, adapted for in-place
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * scatterlist interface. Originally based on the public domain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * implementation written by Steve Reid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * s390 Version:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Copyright IBM Corp. 2003, 2007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Author(s): Thomas Spatzier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Jan Glauber (jan.glauber@de.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * Derived from "crypto/sha1_generic.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Copyright (c) Alan Smithee.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/cpufeature.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <crypto/sha.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <asm/cpacf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "sha.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static int s390_sha1_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) sctx->state[0] = SHA1_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) sctx->state[1] = SHA1_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) sctx->state[2] = SHA1_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) sctx->state[3] = SHA1_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) sctx->state[4] = SHA1_H4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) sctx->count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) sctx->func = CPACF_KIMD_SHA_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static int s390_sha1_export(struct shash_desc *desc, void *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct sha1_state *octx = out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) octx->count = sctx->count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) memcpy(octx->state, sctx->state, sizeof(octx->state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) memcpy(octx->buffer, sctx->buf, sizeof(octx->buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static int s390_sha1_import(struct shash_desc *desc, const void *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) const struct sha1_state *ictx = in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) sctx->count = ictx->count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) memcpy(sctx->state, ictx->state, sizeof(ictx->state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) memcpy(sctx->buf, ictx->buffer, sizeof(ictx->buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) sctx->func = CPACF_KIMD_SHA_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static struct shash_alg alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .digestsize = SHA1_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .init = s390_sha1_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .update = s390_sha_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .final = s390_sha_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .export = s390_sha1_export,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .import = s390_sha1_import,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .descsize = sizeof(struct s390_sha_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .statesize = sizeof(struct sha1_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .base = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .cra_name = "sha1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .cra_driver_name= "sha1-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .cra_priority = 300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .cra_blocksize = SHA1_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static int __init sha1_s390_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (!cpacf_query_func(CPACF_KIMD, CPACF_KIMD_SHA_1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return crypto_register_shash(&alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void __exit sha1_s390_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) crypto_unregister_shash(&alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) module_cpu_feature_match(MSA, sha1_s390_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) module_exit(sha1_s390_fini);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) MODULE_ALIAS_CRYPTO("sha1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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