mirror of
https://github.com/openharmony/tee_tee_tzdriver.git
synced 2026-07-01 06:41:57 -04:00
袁浩
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
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* auth_base_impl.c
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*
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* function for base hash operation
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*
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* Copyright (C) 2022 Huawei Technologies Co., Ltd.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "auth_base_impl.h"
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#include <securec.h>
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#include "tc_ns_log.h"
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#include "tc_ns_client.h"
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#include "agent.h" /* for get_proc_dpath */
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#include "los_adapt.h"
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int calc_task_hash(unsigned char *digest, uint32_t dig_len,
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LosTaskCB *cur_struct)
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{
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tee_sha256_context ctx;
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if (!cur_struct || !digest || dig_len != SHA256_DIGEST_LENGTH) {
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tloge("tee hash: input param is error\n");
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return -EFAULT;
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}
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LosVmSpace *space = OS_PCB_FROM_PID(cur_struct->processID)->vmSpace;
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if (space == NULL)
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return -EFAULT;
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init_tee_sha256(&ctx);
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/* search the region list */
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if (space->codeStart != 0 && space->codeEnd > space->codeStart)
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update_tee_sha256(&ctx, (void *)space->codeStart, space->codeEnd - space->codeStart);
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else
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return -EFAULT;
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finish_tee_sha256(&ctx, digest);
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return 0;
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}
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