mirror of
https://github.com/AsahiLinux/u-boot
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441749d9d1
Two header fields are not properly converted to little endian before assignment, resulting in incorrect header while executing mkimage on big endian hosts. Convert the value of the header fields image_checksum and edcsa_algorithm to little endian before the assignment. Signed-off-by: Antonio Borneo <antonio.borneo@st.com> Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
154 lines
3.8 KiB
C
154 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*/
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#include <image.h>
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#include "imagetool.h"
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/* magic ='S' 'T' 'M' 0x32 */
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#define HEADER_MAGIC be32_to_cpu(0x53544D32)
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#define VER_MAJOR_IDX 2
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#define VER_MINOR_IDX 1
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#define VER_VARIANT_IDX 0
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#define HEADER_VERSION_V1 0x1
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/* default option : bit0 => no signature */
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#define HEADER_DEFAULT_OPTION (cpu_to_le32(0x00000001))
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/* default binary type for U-Boot */
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#define HEADER_TYPE_UBOOT (cpu_to_le32(0x00000000))
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struct stm32_header {
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uint32_t magic_number;
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uint32_t image_signature[64 / 4];
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uint32_t image_checksum;
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uint8_t header_version[4];
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uint32_t image_length;
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uint32_t image_entry_point;
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uint32_t reserved1;
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uint32_t load_address;
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uint32_t reserved2;
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uint32_t version_number;
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uint32_t option_flags;
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uint32_t ecdsa_algorithm;
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uint32_t ecdsa_public_key[64 / 4];
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uint32_t padding[83 / 4];
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uint32_t binary_type;
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};
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static struct stm32_header stm32image_header;
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static void stm32image_default_header(struct stm32_header *ptr)
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{
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if (!ptr)
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return;
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ptr->magic_number = HEADER_MAGIC;
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ptr->header_version[VER_MAJOR_IDX] = HEADER_VERSION_V1;
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ptr->option_flags = HEADER_DEFAULT_OPTION;
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ptr->ecdsa_algorithm = cpu_to_le32(1);
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ptr->binary_type = HEADER_TYPE_UBOOT;
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}
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static uint32_t stm32image_checksum(void *start, uint32_t len)
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{
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uint32_t csum = 0;
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uint32_t hdr_len = sizeof(struct stm32_header);
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uint8_t *p;
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if (len < hdr_len)
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return 0;
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p = start + hdr_len;
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len -= hdr_len;
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while (len > 0) {
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csum += *p;
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p++;
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len--;
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}
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return csum;
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}
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static int stm32image_check_image_types(uint8_t type)
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{
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if (type == IH_TYPE_STM32IMAGE)
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return EXIT_SUCCESS;
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return EXIT_FAILURE;
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}
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static int stm32image_verify_header(unsigned char *ptr, int image_size,
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struct image_tool_params *params)
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{
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struct stm32_header *stm32hdr = (struct stm32_header *)ptr;
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int i;
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if (image_size < sizeof(struct stm32_header))
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return -1;
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if (stm32hdr->magic_number != HEADER_MAGIC)
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return -1;
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if (stm32hdr->header_version[VER_MAJOR_IDX] != HEADER_VERSION_V1)
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return -1;
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if (stm32hdr->reserved1 || stm32hdr->reserved2)
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return -1;
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for (i = 0; i < (sizeof(stm32hdr->padding) / 4); i++) {
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if (stm32hdr->padding[i] != 0)
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return -1;
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}
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return 0;
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}
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static void stm32image_print_header(const void *ptr)
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{
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struct stm32_header *stm32hdr = (struct stm32_header *)ptr;
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printf("Image Type : STMicroelectronics STM32 V%d.%d\n",
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stm32hdr->header_version[VER_MAJOR_IDX],
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stm32hdr->header_version[VER_MINOR_IDX]);
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printf("Image Size : %lu bytes\n",
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(unsigned long)le32_to_cpu(stm32hdr->image_length));
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printf("Image Load : 0x%08x\n",
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le32_to_cpu(stm32hdr->load_address));
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printf("Entry Point : 0x%08x\n",
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le32_to_cpu(stm32hdr->image_entry_point));
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printf("Checksum : 0x%08x\n",
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le32_to_cpu(stm32hdr->image_checksum));
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printf("Option : 0x%08x\n",
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le32_to_cpu(stm32hdr->option_flags));
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printf("BinaryType : 0x%08x\n",
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le32_to_cpu(stm32hdr->binary_type));
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}
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static void stm32image_set_header(void *ptr, struct stat *sbuf, int ifd,
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struct image_tool_params *params)
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{
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struct stm32_header *stm32hdr = (struct stm32_header *)ptr;
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stm32image_default_header(stm32hdr);
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stm32hdr->load_address = cpu_to_le32(params->addr);
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stm32hdr->image_entry_point = cpu_to_le32(params->ep);
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stm32hdr->image_length = cpu_to_le32((uint32_t)sbuf->st_size -
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sizeof(struct stm32_header));
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stm32hdr->image_checksum =
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cpu_to_le32(stm32image_checksum(ptr, sbuf->st_size));
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}
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/*
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* stm32image parameters
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*/
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U_BOOT_IMAGE_TYPE(
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stm32image,
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"STMicroelectronics STM32MP Image support",
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sizeof(struct stm32_header),
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(void *)&stm32image_header,
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NULL,
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stm32image_verify_header,
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stm32image_print_header,
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stm32image_set_header,
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NULL,
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stm32image_check_image_types,
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NULL,
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NULL
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);
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