fs: fat: search file should not allocate cluster
[platform/kernel/u-boot.git] / cmd / abootimg.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2020
4  * Sam Protsenko <joe.skb7@gmail.com>
5  */
6
7 #include <android_image.h>
8 #include <common.h>
9 #include <command.h>
10 #include <image.h>
11 #include <mapmem.h>
12
13 #define abootimg_addr() \
14         (_abootimg_addr == -1 ? image_load_addr : _abootimg_addr)
15
16 /* Please use abootimg_addr() macro to obtain the boot image address */
17 static ulong _abootimg_addr = -1;
18
19 static int abootimg_get_ver(int argc, char *const argv[])
20 {
21         const struct andr_img_hdr *hdr;
22         int res = CMD_RET_SUCCESS;
23
24         if (argc > 1)
25                 return CMD_RET_USAGE;
26
27         hdr = map_sysmem(abootimg_addr(), sizeof(*hdr));
28         if (android_image_check_header(hdr)) {
29                 printf("Error: Boot Image header is incorrect\n");
30                 res = CMD_RET_FAILURE;
31                 goto exit;
32         }
33
34         if (argc == 0)
35                 printf("%u\n", hdr->header_version);
36         else
37                 env_set_ulong(argv[0], hdr->header_version);
38
39 exit:
40         unmap_sysmem(hdr);
41         return res;
42 }
43
44 static int abootimg_get_recovery_dtbo(int argc, char *const argv[])
45 {
46         ulong addr;
47         u32 size;
48
49         if (argc > 2)
50                 return CMD_RET_USAGE;
51
52         if (!android_image_get_dtbo(abootimg_addr(), &addr, &size))
53                 return CMD_RET_FAILURE;
54
55         if (argc == 0) {
56                 printf("%lx\n", addr);
57         } else {
58                 env_set_hex(argv[0], addr);
59                 if (argc == 2)
60                         env_set_hex(argv[1], size);
61         }
62
63         return CMD_RET_SUCCESS;
64 }
65
66 static int abootimg_get_dtb_load_addr(int argc, char *const argv[])
67 {
68         const struct andr_img_hdr *hdr;
69         int res = CMD_RET_SUCCESS;
70
71         if (argc > 1)
72                 return CMD_RET_USAGE;
73
74         hdr = map_sysmem(abootimg_addr(), sizeof(*hdr));
75         if (android_image_check_header(hdr)) {
76                 printf("Error: Boot Image header is incorrect\n");
77                 res = CMD_RET_FAILURE;
78                 goto exit;
79         }
80
81         if (hdr->header_version < 2) {
82                 printf("Error: header_version must be >= 2 for this\n");
83                 res = CMD_RET_FAILURE;
84                 goto exit;
85         }
86
87         if (argc == 0)
88                 printf("%lx\n", (ulong)hdr->dtb_addr);
89         else
90                 env_set_hex(argv[0], (ulong)hdr->dtb_addr);
91
92 exit:
93         unmap_sysmem(hdr);
94         return res;
95 }
96
97 static int abootimg_get_dtb_by_index(int argc, char *const argv[])
98 {
99         const char *index_str;
100         u32 num;
101         char *endp;
102         ulong addr;
103         u32 size;
104
105         if (argc < 1 || argc > 3)
106                 return CMD_RET_USAGE;
107
108         index_str = argv[0] + strlen("--index=");
109         if (index_str[0] == '\0') {
110                 printf("Error: Wrong index num\n");
111                 return CMD_RET_FAILURE;
112         }
113
114         num = simple_strtoul(index_str, &endp, 0);
115         if (*endp != '\0') {
116                 printf("Error: Wrong index num\n");
117                 return CMD_RET_FAILURE;
118         }
119
120         if (!android_image_get_dtb_by_index(abootimg_addr(), num,
121                                             &addr, &size)) {
122                 return CMD_RET_FAILURE;
123         }
124
125         if (argc == 1) {
126                 printf("%lx\n", addr);
127         } else {
128                 if (env_set_hex(argv[1], addr)) {
129                         printf("Error: Can't set [addr_var]\n");
130                         return CMD_RET_FAILURE;
131                 }
132
133                 if (argc == 3) {
134                         if (env_set_hex(argv[2], size)) {
135                                 printf("Error: Can't set [size_var]\n");
136                                 return CMD_RET_FAILURE;
137                         }
138                 }
139         }
140
141         return CMD_RET_SUCCESS;
142 }
143
144 static int abootimg_get_dtb(int argc, char *const argv[])
145 {
146         if (argc < 1)
147                 return CMD_RET_USAGE;
148
149         if (strstr(argv[0], "--index="))
150                 return abootimg_get_dtb_by_index(argc, argv);
151
152         return CMD_RET_USAGE;
153 }
154
155 static int do_abootimg_addr(struct cmd_tbl *cmdtp, int flag, int argc,
156                             char *const argv[])
157 {
158         char *endp;
159         ulong img_addr;
160
161         if (argc != 2)
162                 return CMD_RET_USAGE;
163
164         img_addr = simple_strtoul(argv[1], &endp, 16);
165         if (*endp != '\0') {
166                 printf("Error: Wrong image address\n");
167                 return CMD_RET_FAILURE;
168         }
169
170         _abootimg_addr = img_addr;
171         return CMD_RET_SUCCESS;
172 }
173
174 static int do_abootimg_get(struct cmd_tbl *cmdtp, int flag, int argc,
175                            char *const argv[])
176 {
177         const char *param;
178
179         if (argc < 2)
180                 return CMD_RET_USAGE;
181
182         param = argv[1];
183         argc -= 2;
184         argv += 2;
185         if (!strcmp(param, "ver"))
186                 return abootimg_get_ver(argc, argv);
187         else if (!strcmp(param, "recovery_dtbo"))
188                 return abootimg_get_recovery_dtbo(argc, argv);
189         else if (!strcmp(param, "dtb_load_addr"))
190                 return abootimg_get_dtb_load_addr(argc, argv);
191         else if (!strcmp(param, "dtb"))
192                 return abootimg_get_dtb(argc, argv);
193
194         return CMD_RET_USAGE;
195 }
196
197 static int do_abootimg_dump(struct cmd_tbl *cmdtp, int flag, int argc,
198                             char *const argv[])
199 {
200         if (argc != 2)
201                 return CMD_RET_USAGE;
202
203         if (!strcmp(argv[1], "dtb")) {
204                 if (android_image_print_dtb_contents(abootimg_addr()))
205                         return CMD_RET_FAILURE;
206         } else {
207                 return CMD_RET_USAGE;
208         }
209
210         return CMD_RET_SUCCESS;
211 }
212
213 static struct cmd_tbl cmd_abootimg_sub[] = {
214         U_BOOT_CMD_MKENT(addr, 2, 1, do_abootimg_addr, "", ""),
215         U_BOOT_CMD_MKENT(dump, 2, 1, do_abootimg_dump, "", ""),
216         U_BOOT_CMD_MKENT(get, 5, 1, do_abootimg_get, "", ""),
217 };
218
219 static int do_abootimg(struct cmd_tbl *cmdtp, int flag, int argc,
220                        char *const argv[])
221 {
222         struct cmd_tbl *cp;
223
224         cp = find_cmd_tbl(argv[1], cmd_abootimg_sub,
225                           ARRAY_SIZE(cmd_abootimg_sub));
226
227         /* Strip off leading 'abootimg' command argument */
228         argc--;
229         argv++;
230
231         if (!cp || argc > cp->maxargs)
232                 return CMD_RET_USAGE;
233         if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
234                 return CMD_RET_SUCCESS;
235
236         return cp->cmd(cmdtp, flag, argc, argv);
237 }
238
239 U_BOOT_CMD(
240         abootimg, CONFIG_SYS_MAXARGS, 0, do_abootimg,
241         "manipulate Android Boot Image",
242         "addr <addr>\n"
243         "    - set the address in RAM where boot image is located\n"
244         "      ($loadaddr is used by default)\n"
245         "abootimg dump dtb\n"
246         "    - print info for all DT blobs in DTB area\n"
247         "abootimg get ver [varname]\n"
248         "    - get header version\n"
249         "abootimg get recovery_dtbo [addr_var [size_var]]\n"
250         "    - get address and size (hex) of recovery DTBO area in the image\n"
251         "      [addr_var]: variable name to contain DTBO area address\n"
252         "      [size_var]: variable name to contain DTBO area size\n"
253         "abootimg get dtb_load_addr [varname]\n"
254         "    - get load address (hex) of DTB, from image header\n"
255         "abootimg get dtb --index=<num> [addr_var [size_var]]\n"
256         "    - get address and size (hex) of DT blob in the image by index\n"
257         "      <num>: index number of desired DT blob in DTB area\n"
258         "      [addr_var]: variable name to contain DT blob address\n"
259         "      [size_var]: variable name to contain DT blob size"
260 );