Changeset View
Changeset View
Standalone View
Standalone View
sys/dev/cxgbe/crypto/t4_crypto.c
| /*- | /*- | ||||
| * Copyright (c) 2017 Chelsio Communications, Inc. | * Copyright (c) 2017 Chelsio Communications, Inc. | ||||
| * Copyright (c) 2021 The FreeBSD Foundation | |||||
| * All rights reserved. | * All rights reserved. | ||||
| * Written by: John Baldwin <jhb@FreeBSD.org> | * Written by: John Baldwin <jhb@FreeBSD.org> | ||||
| * | * | ||||
| * Portions of this software were developed by Ararat River | |||||
| * Consulting, LLC under sponsorship of the FreeBSD Foundation. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | * Redistribution and use in source and binary forms, with or without | ||||
| * modification, are permitted provided that the following conditions | * modification, are permitted provided that the following conditions | ||||
| * are met: | * are met: | ||||
| * 1. Redistributions of source code must retain the above copyright | * 1. Redistributions of source code must retain the above copyright | ||||
| * notice, this list of conditions and the following disclaimer. | * notice, this list of conditions and the following disclaimer. | ||||
| * 2. Redistributions in binary form must reproduce the above copyright | * 2. Redistributions in binary form must reproduce the above copyright | ||||
| * notice, this list of conditions and the following disclaimer in the | * notice, this list of conditions and the following disclaimer in the | ||||
| * documentation and/or other materials provided with the distribution. | * documentation and/or other materials provided with the distribution. | ||||
| ▲ Show 20 Lines • Show All 1,439 Lines • ▼ Show 20 Lines | for (i = 0; i < crp->crp_aad_length; i += sizeof(block)) { | ||||
| len = imin(crp->crp_aad_length - i, sizeof(block)); | len = imin(crp->crp_aad_length - i, sizeof(block)); | ||||
| crypto_copydata(crp, crp->crp_aad_start + i, len, | crypto_copydata(crp, crp->crp_aad_start + i, len, | ||||
| block); | block); | ||||
| bzero(block + len, sizeof(block) - len); | bzero(block + len, sizeof(block) - len); | ||||
| axf->Update(auth_ctx, block, sizeof(block)); | axf->Update(auth_ctx, block, sizeof(block)); | ||||
| } | } | ||||
| } | } | ||||
| exf->reinit(kschedule, iv); | exf->reinit(kschedule, iv, sizeof(iv)); | ||||
| /* Do encryption with MAC */ | /* Do encryption with MAC */ | ||||
| for (i = 0; i < crp->crp_payload_length; i += sizeof(block)) { | for (i = 0; i < crp->crp_payload_length; i += sizeof(block)) { | ||||
| len = imin(crp->crp_payload_length - i, sizeof(block)); | len = imin(crp->crp_payload_length - i, sizeof(block)); | ||||
| crypto_copydata(crp, crp->crp_payload_start + i, len, block); | crypto_copydata(crp, crp->crp_payload_start + i, len, block); | ||||
| bzero(block + len, sizeof(block) - len); | bzero(block + len, sizeof(block) - len); | ||||
| if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) { | if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) { | ||||
| exf->encrypt(kschedule, block, block); | exf->encrypt(kschedule, block, block); | ||||
| ▲ Show 20 Lines • Show All 460 Lines • ▼ Show 20 Lines | if (crp->crp_aad != NULL) | ||||
| error = axf->Update(auth_ctx, crp->crp_aad, | error = axf->Update(auth_ctx, crp->crp_aad, | ||||
| crp->crp_aad_length); | crp->crp_aad_length); | ||||
| else | else | ||||
| error = crypto_apply(crp, crp->crp_aad_start, | error = crypto_apply(crp, crp->crp_aad_start, | ||||
| crp->crp_aad_length, axf->Update, auth_ctx); | crp->crp_aad_length, axf->Update, auth_ctx); | ||||
| if (error) | if (error) | ||||
| goto out; | goto out; | ||||
| exf->reinit(kschedule, iv); | exf->reinit(kschedule, iv, sizeof(iv)); | ||||
| /* Do encryption/decryption with MAC */ | /* Do encryption/decryption with MAC */ | ||||
| for (i = 0; i < crp->crp_payload_length; i += sizeof(block)) { | for (i = 0; i < crp->crp_payload_length; i += sizeof(block)) { | ||||
| len = imin(crp->crp_payload_length - i, sizeof(block)); | len = imin(crp->crp_payload_length - i, sizeof(block)); | ||||
| crypto_copydata(crp, crp->crp_payload_start + i, len, block); | crypto_copydata(crp, crp->crp_payload_start + i, len, block); | ||||
| bzero(block + len, sizeof(block) - len); | bzero(block + len, sizeof(block) - len); | ||||
| if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) { | if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) { | ||||
| axf->Update(auth_ctx, block, len); | axf->Update(auth_ctx, block, len); | ||||
| Show All 18 Lines | if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) { | ||||
| char digest2[AES_CBC_MAC_HASH_LEN]; | char digest2[AES_CBC_MAC_HASH_LEN]; | ||||
| crypto_copydata(crp, crp->crp_digest_start, sizeof(digest2), | crypto_copydata(crp, crp->crp_digest_start, sizeof(digest2), | ||||
| digest2); | digest2); | ||||
| if (timingsafe_bcmp(digest, digest2, sizeof(digest)) == 0) { | if (timingsafe_bcmp(digest, digest2, sizeof(digest)) == 0) { | ||||
| error = 0; | error = 0; | ||||
| /* Tag matches, decrypt data. */ | /* Tag matches, decrypt data. */ | ||||
| exf->reinit(kschedule, iv); | exf->reinit(kschedule, iv, sizeof(iv)); | ||||
| for (i = 0; i < crp->crp_payload_length; | for (i = 0; i < crp->crp_payload_length; | ||||
| i += sizeof(block)) { | i += sizeof(block)) { | ||||
| len = imin(crp->crp_payload_length - i, | len = imin(crp->crp_payload_length - i, | ||||
| sizeof(block)); | sizeof(block)); | ||||
| crypto_copydata(crp, crp->crp_payload_start + i, | crypto_copydata(crp, crp->crp_payload_start + i, | ||||
| len, block); | len, block); | ||||
| bzero(block + len, sizeof(block) - len); | bzero(block + len, sizeof(block) - len); | ||||
| exf->decrypt(kschedule, block, block); | exf->decrypt(kschedule, block, block); | ||||
| ▲ Show 20 Lines • Show All 977 Lines • Show Last 20 Lines | |||||