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6bf4ca07 HS |
1 | /* |
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 | ||
27 | int fit_verify_header(unsigned char *ptr, int image_size, | |
28 | struct image_tool_params *params) | |
29 | { | |
30 | return fdt_check_header(ptr); | |
31 | } | |
32 | ||
33 | int 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 | ||
41 | int mmap_fdt(char *cmdname, const char *fname, void **blobp, | |
42 | struct stat *sbuf, int useunlink) | |
43 | { | |
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)); | |
53 | if (useunlink) | |
54 | unlink(fname); | |
55 | return -1; | |
56 | } | |
57 | ||
58 | if (fstat(fd, sbuf) < 0) { | |
59 | fprintf(stderr, "%s: Can't stat %s: %s\n", | |
60 | cmdname, fname, strerror(errno)); | |
61 | if (useunlink) | |
62 | unlink(fname); | |
63 | return -1; | |
64 | } | |
65 | ||
66 | errno = 0; | |
67 | ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); | |
68 | if ((ptr == MAP_FAILED) || (errno != 0)) { | |
69 | fprintf(stderr, "%s: Can't read %s: %s\n", | |
70 | cmdname, fname, strerror(errno)); | |
71 | if (useunlink) | |
72 | unlink(fname); | |
73 | return -1; | |
74 | } | |
75 | ||
76 | /* check if ptr has a valid blob */ | |
77 | if (fdt_check_header(ptr)) { | |
78 | fprintf(stderr, "%s: Invalid FIT blob\n", cmdname); | |
79 | if (useunlink) | |
80 | unlink(fname); | |
81 | return -1; | |
82 | } | |
83 | ||
84 | *blobp = ptr; | |
85 | return fd; | |
86 | } |