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https://github.com/AsahiLinux/u-boot
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53b406369e
When parsing the dfu_alt_info, check the number of arguments and argument string strictly. If there is any garbage data (which is not able to be parsed correctly) in dfu_alt_info, that means something wrong and user may make a typo or mis- understanding about the syntax. Since the dfu_alt_info is used for updating the firmware, this mistake may lead to brick the hardware. Thus it should be checked strictly for making sure there is no mistake. Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
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*/
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#include <common.h>
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#include <dfu.h>
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#include <errno.h>
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#include <log.h>
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#include <malloc.h>
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int __weak dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
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void *buf, long *len)
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{
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debug("%s: off=0x%llx, len=0x%x\n", __func__, offset, (u32)*len);
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return 0;
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}
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int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
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{
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*size = 0;
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return 0;
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}
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int __weak dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
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void *buf, long *len)
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{
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debug("%s: off=0x%llx, len=0x%x\n", __func__, offset, (u32)*len);
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*len = 0;
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return 0;
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}
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int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
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{
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debug("%s: devstr = %s\n", __func__, devstr);
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if (argc != 0)
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return -EINVAL;
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dfu->dev_type = DFU_DEV_VIRT;
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dfu->layout = DFU_RAW_ADDR;
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dfu->data.virt.dev_num = dectoul(devstr, NULL);
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dfu->write_medium = dfu_write_medium_virt;
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dfu->get_medium_size = dfu_get_medium_size_virt;
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dfu->read_medium = dfu_read_medium_virt;
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dfu->inited = 0;
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return 0;
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}
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