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116 lines
2.9 KiB
116 lines
2.9 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* sha512-glue.c - accelerated SHA-384/512 for ARM |
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* |
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* Copyright (C) 2015 Linaro Ltd <[email protected]> |
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*/ |
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#include <crypto/internal/hash.h> |
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#include <crypto/sha2.h> |
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#include <crypto/sha512_base.h> |
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#include <linux/crypto.h> |
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#include <linux/module.h> |
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#include <asm/hwcap.h> |
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#include <asm/neon.h> |
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#include "sha512.h" |
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MODULE_DESCRIPTION("Accelerated SHA-384/SHA-512 secure hash for ARM"); |
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MODULE_AUTHOR("Ard Biesheuvel <[email protected]>"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS_CRYPTO("sha384"); |
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MODULE_ALIAS_CRYPTO("sha512"); |
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MODULE_ALIAS_CRYPTO("sha384-arm"); |
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MODULE_ALIAS_CRYPTO("sha512-arm"); |
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asmlinkage void sha512_block_data_order(u64 *state, u8 const *src, int blocks); |
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int sha512_arm_update(struct shash_desc *desc, const u8 *data, |
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unsigned int len) |
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{ |
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return sha512_base_do_update(desc, data, len, |
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(sha512_block_fn *)sha512_block_data_order); |
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} |
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static int sha512_arm_final(struct shash_desc *desc, u8 *out) |
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{ |
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sha512_base_do_finalize(desc, |
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(sha512_block_fn *)sha512_block_data_order); |
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return sha512_base_finish(desc, out); |
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} |
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int sha512_arm_finup(struct shash_desc *desc, const u8 *data, |
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unsigned int len, u8 *out) |
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{ |
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sha512_base_do_update(desc, data, len, |
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(sha512_block_fn *)sha512_block_data_order); |
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return sha512_arm_final(desc, out); |
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} |
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static struct shash_alg sha512_arm_algs[] = { { |
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.init = sha384_base_init, |
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.update = sha512_arm_update, |
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.final = sha512_arm_final, |
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.finup = sha512_arm_finup, |
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.descsize = sizeof(struct sha512_state), |
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.digestsize = SHA384_DIGEST_SIZE, |
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.base = { |
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.cra_name = "sha384", |
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.cra_driver_name = "sha384-arm", |
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.cra_priority = 250, |
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.cra_blocksize = SHA512_BLOCK_SIZE, |
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.cra_module = THIS_MODULE, |
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} |
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}, { |
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.init = sha512_base_init, |
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.update = sha512_arm_update, |
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.final = sha512_arm_final, |
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.finup = sha512_arm_finup, |
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.descsize = sizeof(struct sha512_state), |
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.digestsize = SHA512_DIGEST_SIZE, |
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.base = { |
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.cra_name = "sha512", |
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.cra_driver_name = "sha512-arm", |
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.cra_priority = 250, |
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.cra_blocksize = SHA512_BLOCK_SIZE, |
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.cra_module = THIS_MODULE, |
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} |
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} }; |
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static int __init sha512_arm_mod_init(void) |
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{ |
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int err; |
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err = crypto_register_shashes(sha512_arm_algs, |
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ARRAY_SIZE(sha512_arm_algs)); |
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if (err) |
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return err; |
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if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon()) { |
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err = crypto_register_shashes(sha512_neon_algs, |
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ARRAY_SIZE(sha512_neon_algs)); |
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if (err) |
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goto err_unregister; |
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} |
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return 0; |
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err_unregister: |
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crypto_unregister_shashes(sha512_arm_algs, |
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ARRAY_SIZE(sha512_arm_algs)); |
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return err; |
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} |
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static void __exit sha512_arm_mod_fini(void) |
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{ |
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crypto_unregister_shashes(sha512_arm_algs, |
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ARRAY_SIZE(sha512_arm_algs)); |
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if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon()) |
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crypto_unregister_shashes(sha512_neon_algs, |
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ARRAY_SIZE(sha512_neon_algs)); |
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} |
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module_init(sha512_arm_mod_init); |
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module_exit(sha512_arm_mod_fini);
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