1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2008 Semihalf
5 * (C) Copyright 2000-2004
6 * DENX Software Engineering
7 * Wolfgang Denk, wd@denx.de
9 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
10 * default_image specific code abstracted from mkimage.c
11 * some functions added to address abstraction
13 * All rights reserved.
16 #include "imagetool.h"
18 #include <u-boot/crc.h>
21 #include <tee/optee.h>
22 #include <u-boot/crc.h>
25 static struct legacy_img_hdr header;
27 static int image_check_image_types(uint8_t type)
29 if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
30 (type == IH_TYPE_KERNEL_NOLOAD) || (type == IH_TYPE_FIRMWARE_IVT))
36 static int image_check_params(struct image_tool_params *params)
38 return ((params->dflag && (params->fflag || params->lflag)) ||
39 (params->fflag && (params->dflag || params->lflag)) ||
40 (params->lflag && (params->dflag || params->fflag)));
43 static int image_verify_header(unsigned char *ptr, int image_size,
44 struct image_tool_params *params)
47 const unsigned char *data;
49 struct legacy_img_hdr header;
50 struct legacy_img_hdr *hdr = &header;
53 * create copy of header so that we can blank out the
54 * checksum field for checking - this can't be done
55 * on the PROT_READ mapped data.
57 memcpy(hdr, ptr, sizeof(struct legacy_img_hdr));
59 if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
60 debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
61 params->cmdname, params->imagefile);
62 return -FDT_ERR_BADMAGIC;
65 data = (const unsigned char *)hdr;
66 len = sizeof(struct legacy_img_hdr);
68 checksum = be32_to_cpu(hdr->ih_hcrc);
69 hdr->ih_hcrc = cpu_to_be32(0); /* clear for re-calculation */
71 if (crc32(0, data, len) != checksum) {
72 debug("%s: ERROR: \"%s\" has bad header checksum!\n",
73 params->cmdname, params->imagefile);
74 return -FDT_ERR_BADSTATE;
77 data = (const unsigned char *)ptr + sizeof(struct legacy_img_hdr);
78 len = image_size - sizeof(struct legacy_img_hdr);
80 checksum = be32_to_cpu(hdr->ih_dcrc);
81 if (crc32(0, data, len) != checksum) {
82 debug("%s: ERROR: \"%s\" has corrupted data!\n",
83 params->cmdname, params->imagefile);
84 return -FDT_ERR_BADSTRUCTURE;
89 static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
90 struct image_tool_params *params)
97 struct legacy_img_hdr *hdr = (struct legacy_img_hdr *)ptr;
100 (const unsigned char *)(ptr +
101 sizeof(struct legacy_img_hdr)),
102 sbuf->st_size - sizeof(struct legacy_img_hdr));
104 time = imagetool_get_source_date(params->cmdname, sbuf->st_mtime);
108 if (params->type == IH_TYPE_FIRMWARE_IVT)
109 /* Add size of CSF minus IVT */
110 imagesize = sbuf->st_size - sizeof(struct legacy_img_hdr)
111 + 0x2060 - sizeof(flash_header_v2_t);
114 imagesize = sbuf->st_size - sizeof(struct legacy_img_hdr);
116 if (params->os == IH_OS_TEE) {
117 addr = optee_image_get_load_addr(hdr);
118 ep = optee_image_get_entry_point(hdr);
121 /* Build new header */
122 image_set_magic(hdr, IH_MAGIC);
123 image_set_time(hdr, time);
124 image_set_size(hdr, imagesize);
125 image_set_load(hdr, addr);
126 image_set_ep(hdr, ep);
127 image_set_dcrc(hdr, checksum);
128 image_set_os(hdr, params->os);
129 image_set_arch(hdr, params->arch);
130 image_set_type(hdr, params->type);
131 image_set_comp(hdr, params->comp);
133 image_set_name(hdr, params->imagename);
135 checksum = crc32(0, (const unsigned char *)hdr,
136 sizeof(struct legacy_img_hdr));
138 image_set_hcrc(hdr, checksum);
141 static int image_extract_subimage(void *ptr, struct image_tool_params *params)
143 const struct legacy_img_hdr *hdr = (const struct legacy_img_hdr *)ptr;
147 if (image_check_type(hdr, IH_TYPE_MULTI)) {
148 ulong idx = params->pflag;
151 /* get the number of data files present in the image */
152 count = image_multi_count(hdr);
154 /* retrieve the "data file" at the idx position */
155 image_multi_getimg(hdr, idx, &file_data, &file_len);
157 if ((file_len == 0) || (idx >= count)) {
158 fprintf(stderr, "%s: No such data file %ld in \"%s\"\n",
159 params->cmdname, idx, params->imagefile);
163 file_data = image_get_data(hdr);
164 file_len = image_get_size(hdr);
167 /* save the "data file" into the file system */
168 return imagetool_save_subimage(params->outfile, file_data, file_len);
172 * Default image type parameters definition
176 "Default Image support",
177 sizeof(struct legacy_img_hdr),
181 image_print_contents,
183 image_extract_subimage,
184 image_check_image_types,