]> git.sur5r.net Git - u-boot/blob - tools/default_image.c
riscv: checkpatch: Fix Macro argument reuse
[u-boot] / tools / default_image.c
1 /*
2  * (C) Copyright 2008 Semihalf
3  *
4  * (C) Copyright 2000-2004
5  * DENX Software Engineering
6  * Wolfgang Denk, wd@denx.de
7  *
8  * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
9  *              default_image specific code abstracted from mkimage.c
10  *              some functions added to address abstraction
11  *
12  * All rights reserved.
13  *
14  * SPDX-License-Identifier:     GPL-2.0+
15  */
16
17 #include "imagetool.h"
18 #include "mkimage.h"
19
20 #include <image.h>
21 #include <tee/optee.h>
22 #include <u-boot/crc.h>
23
24 static image_header_t header;
25
26 static int image_check_image_types(uint8_t type)
27 {
28         if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
29             (type == IH_TYPE_KERNEL_NOLOAD) || (type == IH_TYPE_FIRMWARE_IVT))
30                 return EXIT_SUCCESS;
31         else
32                 return EXIT_FAILURE;
33 }
34
35 static int image_check_params(struct image_tool_params *params)
36 {
37         return  ((params->dflag && (params->fflag || params->lflag)) ||
38                 (params->fflag && (params->dflag || params->lflag)) ||
39                 (params->lflag && (params->dflag || params->fflag)));
40 }
41
42 static int image_verify_header(unsigned char *ptr, int image_size,
43                         struct image_tool_params *params)
44 {
45         uint32_t len;
46         const unsigned char *data;
47         uint32_t checksum;
48         image_header_t header;
49         image_header_t *hdr = &header;
50
51         /*
52          * create copy of header so that we can blank out the
53          * checksum field for checking - this can't be done
54          * on the PROT_READ mapped data.
55          */
56         memcpy(hdr, ptr, sizeof(image_header_t));
57
58         if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
59                 debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
60                       params->cmdname, params->imagefile);
61                 return -FDT_ERR_BADMAGIC;
62         }
63
64         data = (const unsigned char *)hdr;
65         len  = sizeof(image_header_t);
66
67         checksum = be32_to_cpu(hdr->ih_hcrc);
68         hdr->ih_hcrc = cpu_to_be32(0);  /* clear for re-calculation */
69
70         if (crc32(0, data, len) != checksum) {
71                 debug("%s: ERROR: \"%s\" has bad header checksum!\n",
72                       params->cmdname, params->imagefile);
73                 return -FDT_ERR_BADSTATE;
74         }
75
76         data = (const unsigned char *)ptr + sizeof(image_header_t);
77         len  = image_size - sizeof(image_header_t) ;
78
79         checksum = be32_to_cpu(hdr->ih_dcrc);
80         if (crc32(0, data, len) != checksum) {
81                 debug("%s: ERROR: \"%s\" has corrupted data!\n",
82                       params->cmdname, params->imagefile);
83                 return -FDT_ERR_BADSTRUCTURE;
84         }
85         return 0;
86 }
87
88 static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
89                                 struct image_tool_params *params)
90 {
91         uint32_t checksum;
92         time_t time;
93         uint32_t imagesize;
94         uint32_t ep;
95         uint32_t addr;
96
97         image_header_t * hdr = (image_header_t *)ptr;
98
99         checksum = crc32(0,
100                         (const unsigned char *)(ptr +
101                                 sizeof(image_header_t)),
102                         sbuf->st_size - sizeof(image_header_t));
103
104         time = imagetool_get_source_date(params, sbuf->st_mtime);
105         ep = params->ep;
106         addr = params->addr;
107
108         if (params->type == IH_TYPE_FIRMWARE_IVT)
109                 /* Add size of CSF minus IVT */
110                 imagesize = sbuf->st_size - sizeof(image_header_t) + 0x1FE0;
111         else
112                 imagesize = sbuf->st_size - sizeof(image_header_t);
113
114         if (params->os == IH_OS_TEE) {
115                 addr = optee_image_get_load_addr(hdr);
116                 ep = optee_image_get_entry_point(hdr);
117         }
118
119         /* Build new header */
120         image_set_magic(hdr, IH_MAGIC);
121         image_set_time(hdr, time);
122         image_set_size(hdr, imagesize);
123         image_set_load(hdr, addr);
124         image_set_ep(hdr, ep);
125         image_set_dcrc(hdr, checksum);
126         image_set_os(hdr, params->os);
127         image_set_arch(hdr, params->arch);
128         image_set_type(hdr, params->type);
129         image_set_comp(hdr, params->comp);
130
131         image_set_name(hdr, params->imagename);
132
133         checksum = crc32(0, (const unsigned char *)hdr,
134                                 sizeof(image_header_t));
135
136         image_set_hcrc(hdr, checksum);
137 }
138
139 static int image_extract_subimage(void *ptr, struct image_tool_params *params)
140 {
141         const image_header_t *hdr = (const image_header_t *)ptr;
142         ulong file_data;
143         ulong file_len;
144
145         if (image_check_type(hdr, IH_TYPE_MULTI)) {
146                 ulong idx = params->pflag;
147                 ulong count;
148
149                 /* get the number of data files present in the image */
150                 count = image_multi_count(hdr);
151
152                 /* retrieve the "data file" at the idx position */
153                 image_multi_getimg(hdr, idx, &file_data, &file_len);
154
155                 if ((file_len == 0) || (idx >= count)) {
156                         fprintf(stderr, "%s: No such data file %ld in \"%s\"\n",
157                                 params->cmdname, idx, params->imagefile);
158                         return -1;
159                 }
160         } else {
161                 file_data = image_get_data(hdr);
162                 file_len = image_get_size(hdr);
163         }
164
165         /* save the "data file" into the file system */
166         return imagetool_save_subimage(params->outfile, file_data, file_len);
167 }
168
169 /*
170  * Default image type parameters definition
171  */
172 U_BOOT_IMAGE_TYPE(
173         defimage,
174         "Default Image support",
175         sizeof(image_header_t),
176         (void *)&header,
177         image_check_params,
178         image_verify_header,
179         image_print_contents,
180         image_set_header,
181         image_extract_subimage,
182         image_check_image_types,
183         NULL,
184         NULL
185 );