2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2004
5 * DENX Software Engineering
6 * Wolfgang Denk, wd@denx.de
8 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
9 * FIT image specific code abstracted from mkimage.c
10 * some functions added to address abstraction
12 * All rights reserved.
14 * SPDX-License-Identifier: GPL-2.0+
19 #include <u-boot/crc.h>
21 static image_header_t header
;
23 static int fit_verify_header (unsigned char *ptr
, int image_size
,
24 struct mkimage_params
*params
)
26 return fdt_check_header(ptr
);
29 static int fit_check_image_types (uint8_t type
)
31 if (type
== IH_TYPE_FLATDT
)
37 int mmap_fdt(struct mkimage_params
*params
, const char *fname
, void **blobp
,
43 /* Load FIT blob into memory (we need to write hashes/signatures) */
44 fd
= open(fname
, O_RDWR
| O_BINARY
);
47 fprintf(stderr
, "%s: Can't open %s: %s\n",
48 params
->cmdname
, fname
, strerror(errno
));
53 if (fstat(fd
, sbuf
) < 0) {
54 fprintf(stderr
, "%s: Can't stat %s: %s\n",
55 params
->cmdname
, fname
, strerror(errno
));
60 ptr
= mmap(0, sbuf
->st_size
, PROT_READ
|PROT_WRITE
, MAP_SHARED
, fd
, 0);
61 if (ptr
== MAP_FAILED
) {
62 fprintf(stderr
, "%s: Can't read %s: %s\n",
63 params
->cmdname
, fname
, strerror(errno
));
68 /* check if ptr has a valid blob */
69 if (fdt_check_header(ptr
)) {
70 fprintf(stderr
, "%s: Invalid FIT blob\n", params
->cmdname
);
80 * fit_handle_file - main FIT file processing function
82 * fit_handle_file() runs dtc to convert .its to .itb, includes
83 * binary data, updates timestamp property and calculates hashes.
85 * datafile - .its file
86 * imagefile - .itb file
89 * only on success, otherwise calls exit (EXIT_FAILURE);
91 static int fit_handle_file (struct mkimage_params
*params
)
93 char tmpfile
[MKIMAGE_MAX_TMPFILE_LEN
];
94 char cmd
[MKIMAGE_MAX_DTC_CMDLINE_LEN
];
96 void *dest_blob
= NULL
;
99 off_t destfd_size
= 0;
101 /* Flattened Image Tree (FIT) format handling */
102 debug ("FIT format handling\n");
104 /* call dtc to include binary properties into the tmp file */
105 if (strlen (params
->imagefile
) +
106 strlen (MKIMAGE_TMPFILE_SUFFIX
) + 1 > sizeof (tmpfile
)) {
107 fprintf (stderr
, "%s: Image file name (%s) too long, "
108 "can't create tmpfile",
109 params
->imagefile
, params
->cmdname
);
110 return (EXIT_FAILURE
);
112 sprintf (tmpfile
, "%s%s", params
->imagefile
, MKIMAGE_TMPFILE_SUFFIX
);
114 /* We either compile the source file, or use the existing FIT image */
115 if (params
->datafile
) {
116 /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
117 snprintf(cmd
, sizeof(cmd
), "%s %s %s > %s",
118 MKIMAGE_DTC
, params
->dtc
, params
->datafile
, tmpfile
);
119 debug("Trying to execute \"%s\"\n", cmd
);
121 snprintf(cmd
, sizeof(cmd
), "cp %s %s",
122 params
->imagefile
, tmpfile
);
124 if (system (cmd
) == -1) {
125 fprintf (stderr
, "%s: system(%s) failed: %s\n",
126 params
->cmdname
, cmd
, strerror(errno
));
130 if (params
->keydest
) {
131 destfd
= mmap_fdt(params
, params
->keydest
, &dest_blob
, &sbuf
);
134 destfd_size
= sbuf
.st_size
;
137 tfd
= mmap_fdt(params
, tmpfile
, &ptr
, &sbuf
);
141 /* set hashes for images in the blob */
142 if (fit_add_verification_data(params
->keydir
,
143 dest_blob
, ptr
, params
->comment
,
144 params
->require_keys
)) {
145 fprintf(stderr
, "%s Can't add hashes to FIT blob\n",
150 /* for first image creation, add a timestamp at offset 0 i.e., root */
151 if (params
->datafile
&& fit_set_timestamp(ptr
, 0, sbuf
.st_mtime
)) {
152 fprintf (stderr
, "%s: Can't add image timestamp\n",
154 goto err_add_timestamp
;
156 debug ("Added timestamp successfully\n");
158 munmap ((void *)ptr
, sbuf
.st_size
);
161 munmap(dest_blob
, destfd_size
);
165 if (rename (tmpfile
, params
->imagefile
) == -1) {
166 fprintf (stderr
, "%s: Can't rename %s to %s: %s\n",
167 params
->cmdname
, tmpfile
, params
->imagefile
,
170 unlink (params
->imagefile
);
171 return (EXIT_FAILURE
);
173 return (EXIT_SUCCESS
);
177 munmap(ptr
, sbuf
.st_size
);
180 munmap(dest_blob
, destfd_size
);
187 static int fit_check_params (struct mkimage_params
*params
)
189 return ((params
->dflag
&& (params
->fflag
|| params
->lflag
)) ||
190 (params
->fflag
&& (params
->dflag
|| params
->lflag
)) ||
191 (params
->lflag
&& (params
->dflag
|| params
->fflag
)));
194 static struct image_type_params fitimage_params
= {
195 .name
= "FIT Image support",
196 .header_size
= sizeof(image_header_t
),
197 .hdr
= (void*)&header
,
198 .verify_header
= fit_verify_header
,
199 .print_header
= fit_print_contents
,
200 .check_image_type
= fit_check_image_types
,
201 .fflag_handle
= fit_handle_file
,
202 .set_header
= NULL
, /* FIT images use DTB header */
203 .check_params
= fit_check_params
,
206 void init_fit_image_type (void)
208 mkimage_register (&fitimage_params
);