blob: 81ba698abd2594727522559c0ca8560268bdae20 [file] [log] [blame]
Heiko Schocher6bf4ca02014-03-03 12:19:29 +01001/*
2 * (C) Copyright 2014
3 * DENX Software Engineering
4 * Heiko Schocher <hs@denx.de>
5 *
6 * (C) Copyright 2008 Semihalf
7 *
8 * (C) Copyright 2000-2004
9 * DENX Software Engineering
10 * Wolfgang Denk, wd@denx.de
11 *
12 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
13 * FIT image specific code abstracted from mkimage.c
14 * some functions added to address abstraction
15 *
16 * All rights reserved.
17 *
18 * SPDX-License-Identifier: GPL-2.0+
19 */
20
21#include "imagetool.h"
22#include "mkimage.h"
23#include "fit_common.h"
24#include <image.h>
25#include <u-boot/crc.h>
26
27int fit_verify_header(unsigned char *ptr, int image_size,
28 struct image_tool_params *params)
29{
30 return fdt_check_header(ptr);
31}
32
33int fit_check_image_types(uint8_t type)
34{
35 if (type == IH_TYPE_FLATDT)
36 return EXIT_SUCCESS;
37 else
38 return EXIT_FAILURE;
39}
40
Simon Glassa9468112014-06-02 22:04:53 -060041int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
42 void **blobp, struct stat *sbuf, bool delete_on_error)
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010043{
44 void *ptr;
45 int fd;
46
47 /* Load FIT blob into memory (we need to write hashes/signatures) */
48 fd = open(fname, O_RDWR | O_BINARY);
49
50 if (fd < 0) {
51 fprintf(stderr, "%s: Can't open %s: %s\n",
52 cmdname, fname, strerror(errno));
Simon Glassef0af642014-06-02 22:04:52 -060053 goto err;
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010054 }
55
56 if (fstat(fd, sbuf) < 0) {
57 fprintf(stderr, "%s: Can't stat %s: %s\n",
58 cmdname, fname, strerror(errno));
Simon Glassef0af642014-06-02 22:04:52 -060059 goto err;
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010060 }
61
Simon Glassa9468112014-06-02 22:04:53 -060062 if (size_inc) {
63 sbuf->st_size += size_inc;
64 if (ftruncate(fd, sbuf->st_size)) {
65 fprintf(stderr, "%s: Can't expand %s: %s\n",
66 cmdname, fname, strerror(errno));
67 goto err;
68 }
69 }
70
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010071 errno = 0;
72 ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
73 if ((ptr == MAP_FAILED) || (errno != 0)) {
74 fprintf(stderr, "%s: Can't read %s: %s\n",
75 cmdname, fname, strerror(errno));
Simon Glassef0af642014-06-02 22:04:52 -060076 goto err;
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010077 }
78
79 /* check if ptr has a valid blob */
80 if (fdt_check_header(ptr)) {
81 fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
Simon Glassef0af642014-06-02 22:04:52 -060082 goto err;
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010083 }
84
Simon Glassa9468112014-06-02 22:04:53 -060085 /* expand if needed */
86 if (size_inc) {
87 int ret;
88
89 ret = fdt_open_into(ptr, ptr, sbuf->st_size);
90 if (ret) {
91 fprintf(stderr, "%s: Cannot expand FDT: %s\n",
92 cmdname, fdt_strerror(ret));
93 goto err;
94 }
95 }
96
Heiko Schocher6bf4ca02014-03-03 12:19:29 +010097 *blobp = ptr;
98 return fd;
Simon Glassef0af642014-06-02 22:04:52 -060099
100err:
101 if (fd >= 0)
102 close(fd);
103 if (delete_on_error)
104 unlink(fname);
105
106 return -1;
Heiko Schocher6bf4ca02014-03-03 12:19:29 +0100107}