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aes_impl.c
(11.08 KB)
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aes_impl_aesni.c
(3.76 KB)
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aes_impl_generic.c
(47.24 KB)
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aes_impl_x86-64.c
(1.77 KB)
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aes_modes.c
(4.2 KB)
Editing: aes_modes.c
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <sys/zfs_context.h> #include <modes/modes.h> #include <aes/aes_impl.h> /* Copy a 16-byte AES block from "in" to "out" */ void aes_copy_block(uint8_t *in, uint8_t *out) { if (IS_P2ALIGNED2(in, out, sizeof (uint32_t))) { /* LINTED: pointer alignment */ *(uint32_t *)&out[0] = *(uint32_t *)&in[0]; /* LINTED: pointer alignment */ *(uint32_t *)&out[4] = *(uint32_t *)&in[4]; /* LINTED: pointer alignment */ *(uint32_t *)&out[8] = *(uint32_t *)&in[8]; /* LINTED: pointer alignment */ *(uint32_t *)&out[12] = *(uint32_t *)&in[12]; } else { AES_COPY_BLOCK(in, out); } } /* XOR a 16-byte AES block of data into dst */ void aes_xor_block(uint8_t *data, uint8_t *dst) { if (IS_P2ALIGNED2(dst, data, sizeof (uint32_t))) { /* LINTED: pointer alignment */ *(uint32_t *)&dst[0] ^= *(uint32_t *)&data[0]; /* LINTED: pointer alignment */ *(uint32_t *)&dst[4] ^= *(uint32_t *)&data[4]; /* LINTED: pointer alignment */ *(uint32_t *)&dst[8] ^= *(uint32_t *)&data[8]; /* LINTED: pointer alignment */ *(uint32_t *)&dst[12] ^= *(uint32_t *)&data[12]; } else { AES_XOR_BLOCK(data, dst); } } /* * Encrypt multiple blocks of data according to mode. */ int aes_encrypt_contiguous_blocks(void *ctx, char *data, size_t length, crypto_data_t *out) { aes_ctx_t *aes_ctx = ctx; int rv; if (aes_ctx->ac_flags & CTR_MODE) { rv = ctr_mode_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_xor_block); } else if (aes_ctx->ac_flags & CCM_MODE) { rv = ccm_mode_encrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_copy_block, aes_xor_block); } else if (aes_ctx->ac_flags & (GCM_MODE|GMAC_MODE)) { rv = gcm_mode_encrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_copy_block, aes_xor_block); } else if (aes_ctx->ac_flags & CBC_MODE) { rv = cbc_encrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_copy_block, aes_xor_block); } else { rv = ecb_cipher_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block); } return (rv); } /* * Decrypt multiple blocks of data according to mode. */ int aes_decrypt_contiguous_blocks(void *ctx, char *data, size_t length, crypto_data_t *out) { aes_ctx_t *aes_ctx = ctx; int rv; if (aes_ctx->ac_flags & CTR_MODE) { rv = ctr_mode_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_xor_block); if (rv == CRYPTO_DATA_LEN_RANGE) rv = CRYPTO_ENCRYPTED_DATA_LEN_RANGE; } else if (aes_ctx->ac_flags & CCM_MODE) { rv = ccm_mode_decrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_copy_block, aes_xor_block); } else if (aes_ctx->ac_flags & (GCM_MODE|GMAC_MODE)) { rv = gcm_mode_decrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_encrypt_block, aes_copy_block, aes_xor_block); } else if (aes_ctx->ac_flags & CBC_MODE) { rv = cbc_decrypt_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_decrypt_block, aes_copy_block, aes_xor_block); } else { rv = ecb_cipher_contiguous_blocks(ctx, data, length, out, AES_BLOCK_LEN, aes_decrypt_block); if (rv == CRYPTO_DATA_LEN_RANGE) rv = CRYPTO_ENCRYPTED_DATA_LEN_RANGE; } return (rv); }
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