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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +05302/*
3 * (C) Copyright 2008 Semihalf
4 *
5 * (C) Copyright 2000-2004
6 * DENX Software Engineering
7 * Wolfgang Denk, wd@denx.de
8 *
9 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
10 * default_image specific code abstracted from mkimage.c
11 * some functions added to address abstraction
12 *
13 * All rights reserved.
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053014 */
15
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -070016#include "imagetool.h"
Guilherme Maciel Ferreira26621792015-01-15 02:54:43 -020017#include "mkimage.h"
Simon Glass3db71102019-11-14 12:57:16 -070018#include <u-boot/crc.h>
Guilherme Maciel Ferreira26621792015-01-15 02:54:43 -020019
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053020#include <image.h>
Bryan O'Donoghue45b55712018-03-13 16:50:35 +000021#include <tee/optee.h>
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053022#include <u-boot/crc.h>
Breno Matheus Lima5b20d142019-09-23 18:39:47 +000023#include <imximage.h>
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053024
Simon Glassf3543e62022-09-06 20:26:52 -060025static struct legacy_img_hdr header;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053026
Stephen Warren712fbcf2011-10-18 11:11:49 +000027static int image_check_image_types(uint8_t type)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053028{
Stephen Warrenb9b50e892011-11-10 13:17:53 -070029 if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
Sven Ebenfeldd21bd692016-11-06 16:37:56 +010030 (type == IH_TYPE_KERNEL_NOLOAD) || (type == IH_TYPE_FIRMWARE_IVT))
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053031 return EXIT_SUCCESS;
32 else
33 return EXIT_FAILURE;
34}
35
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -070036static int image_check_params(struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053037{
38 return ((params->dflag && (params->fflag || params->lflag)) ||
39 (params->fflag && (params->dflag || params->lflag)) ||
40 (params->lflag && (params->dflag || params->fflag)));
41}
42
Stephen Warren712fbcf2011-10-18 11:11:49 +000043static int image_verify_header(unsigned char *ptr, int image_size,
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -070044 struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053045{
46 uint32_t len;
47 const unsigned char *data;
48 uint32_t checksum;
Simon Glassf3543e62022-09-06 20:26:52 -060049 struct legacy_img_hdr header;
50 struct legacy_img_hdr *hdr = &header;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053051
52 /*
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.
56 */
Simon Glassf3543e62022-09-06 20:26:52 -060057 memcpy(hdr, ptr, sizeof(struct legacy_img_hdr));
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053058
59 if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
Guilherme Maciel Ferreira26621792015-01-15 02:54:43 -020060 debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
61 params->cmdname, params->imagefile);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053062 return -FDT_ERR_BADMAGIC;
63 }
64
65 data = (const unsigned char *)hdr;
Simon Glassf3543e62022-09-06 20:26:52 -060066 len = sizeof(struct legacy_img_hdr);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053067
68 checksum = be32_to_cpu(hdr->ih_hcrc);
69 hdr->ih_hcrc = cpu_to_be32(0); /* clear for re-calculation */
70
Stephen Warren712fbcf2011-10-18 11:11:49 +000071 if (crc32(0, data, len) != checksum) {
Guilherme Maciel Ferreira26621792015-01-15 02:54:43 -020072 debug("%s: ERROR: \"%s\" has bad header checksum!\n",
73 params->cmdname, params->imagefile);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053074 return -FDT_ERR_BADSTATE;
75 }
76
Simon Glassf3543e62022-09-06 20:26:52 -060077 data = (const unsigned char *)ptr + sizeof(struct legacy_img_hdr);
78 len = image_size - sizeof(struct legacy_img_hdr);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053079
80 checksum = be32_to_cpu(hdr->ih_dcrc);
Stephen Warren712fbcf2011-10-18 11:11:49 +000081 if (crc32(0, data, len) != checksum) {
Guilherme Maciel Ferreira26621792015-01-15 02:54:43 -020082 debug("%s: ERROR: \"%s\" has corrupted data!\n",
83 params->cmdname, params->imagefile);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053084 return -FDT_ERR_BADSTRUCTURE;
85 }
86 return 0;
87}
88
Stephen Warren712fbcf2011-10-18 11:11:49 +000089static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
Guilherme Maciel Ferreiraf86ed6a2013-12-01 12:43:10 -070090 struct image_tool_params *params)
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053091{
92 uint32_t checksum;
Paul Kocialkowskif3f431a2015-07-26 18:48:15 +020093 time_t time;
Sven Ebenfeldd21bd692016-11-06 16:37:56 +010094 uint32_t imagesize;
Bryan O'Donoghue45b55712018-03-13 16:50:35 +000095 uint32_t ep;
96 uint32_t addr;
Simon Glassf3543e62022-09-06 20:26:52 -060097 struct legacy_img_hdr *hdr = (struct legacy_img_hdr *)ptr;
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +053098
Stephen Warren712fbcf2011-10-18 11:11:49 +000099 checksum = crc32(0,
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530100 (const unsigned char *)(ptr +
Simon Glassf3543e62022-09-06 20:26:52 -0600101 sizeof(struct legacy_img_hdr)),
102 sbuf->st_size - sizeof(struct legacy_img_hdr));
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530103
Alex Kiernan87925df2018-06-20 20:10:51 +0000104 time = imagetool_get_source_date(params->cmdname, sbuf->st_mtime);
Bryan O'Donoghue45b55712018-03-13 16:50:35 +0000105 ep = params->ep;
106 addr = params->addr;
107
Sven Ebenfeldd21bd692016-11-06 16:37:56 +0100108 if (params->type == IH_TYPE_FIRMWARE_IVT)
109 /* Add size of CSF minus IVT */
Simon Glassf3543e62022-09-06 20:26:52 -0600110 imagesize = sbuf->st_size - sizeof(struct legacy_img_hdr)
Breno Matheus Lima5b20d142019-09-23 18:39:47 +0000111 + 0x2060 - sizeof(flash_header_v2_t);
112
Sven Ebenfeldd21bd692016-11-06 16:37:56 +0100113 else
Simon Glassf3543e62022-09-06 20:26:52 -0600114 imagesize = sbuf->st_size - sizeof(struct legacy_img_hdr);
Paul Kocialkowskif3f431a2015-07-26 18:48:15 +0200115
Bryan O'Donoghue45b55712018-03-13 16:50:35 +0000116 if (params->os == IH_OS_TEE) {
117 addr = optee_image_get_load_addr(hdr);
118 ep = optee_image_get_entry_point(hdr);
119 }
120
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530121 /* Build new header */
Stephen Warren712fbcf2011-10-18 11:11:49 +0000122 image_set_magic(hdr, IH_MAGIC);
Paul Kocialkowskif3f431a2015-07-26 18:48:15 +0200123 image_set_time(hdr, time);
Sven Ebenfeldd21bd692016-11-06 16:37:56 +0100124 image_set_size(hdr, imagesize);
Bryan O'Donoghue45b55712018-03-13 16:50:35 +0000125 image_set_load(hdr, addr);
126 image_set_ep(hdr, ep);
Stephen Warren712fbcf2011-10-18 11:11:49 +0000127 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);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530132
Stephen Warren712fbcf2011-10-18 11:11:49 +0000133 image_set_name(hdr, params->imagename);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530134
Stephen Warren712fbcf2011-10-18 11:11:49 +0000135 checksum = crc32(0, (const unsigned char *)hdr,
Simon Glassf3543e62022-09-06 20:26:52 -0600136 sizeof(struct legacy_img_hdr));
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530137
Stephen Warren712fbcf2011-10-18 11:11:49 +0000138 image_set_hcrc(hdr, checksum);
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530139}
140
Guilherme Maciel Ferreira67f946c2015-01-15 02:54:41 -0200141static int image_extract_subimage(void *ptr, struct image_tool_params *params)
Guilherme Maciel Ferreiraa804b5c2013-12-01 12:43:11 -0700142{
Simon Glassf3543e62022-09-06 20:26:52 -0600143 const struct legacy_img_hdr *hdr = (const struct legacy_img_hdr *)ptr;
Guilherme Maciel Ferreiraa804b5c2013-12-01 12:43:11 -0700144 ulong file_data;
145 ulong file_len;
146
147 if (image_check_type(hdr, IH_TYPE_MULTI)) {
148 ulong idx = params->pflag;
149 ulong count;
150
151 /* get the number of data files present in the image */
152 count = image_multi_count(hdr);
153
154 /* retrieve the "data file" at the idx position */
155 image_multi_getimg(hdr, idx, &file_data, &file_len);
156
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);
160 return -1;
161 }
162 } else {
163 file_data = image_get_data(hdr);
164 file_len = image_get_size(hdr);
165 }
166
167 /* save the "data file" into the file system */
Guilherme Maciel Ferreira67f946c2015-01-15 02:54:41 -0200168 return imagetool_save_subimage(params->outfile, file_data, file_len);
Guilherme Maciel Ferreiraa804b5c2013-12-01 12:43:11 -0700169}
170
Prafulla Wadaskar89a4d6b2009-08-19 17:36:46 +0530171/*
172 * Default image type parameters definition
173 */
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200174U_BOOT_IMAGE_TYPE(
175 defimage,
176 "Default Image support",
Simon Glassf3543e62022-09-06 20:26:52 -0600177 sizeof(struct legacy_img_hdr),
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200178 (void *)&header,
179 image_check_params,
180 image_verify_header,
181 image_print_contents,
182 image_set_header,
Guilherme Maciel Ferreira67f946c2015-01-15 02:54:41 -0200183 image_extract_subimage,
Guilherme Maciel Ferreiraa93648d2015-01-15 02:48:07 -0200184 image_check_image_types,
185 NULL,
186 NULL
187);