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d0dd1077 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Kyle Harris, kharris@nexus-tech.net | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* | |
25 | * autoscript allows a remote host to download a command file and, | |
26 | * optionally, binary data for automatically updating the target. For | |
27 | * example, you create a new kernel image and want the user to be | |
28 | * able to simply download the image and the machine does the rest. | |
29 | * The kernel image is postprocessed with mkimage, which creates an | |
30 | * image with a script file prepended. If enabled, autoscript will | |
31 | * verify the script and contents of the download and execute the | |
32 | * script portion. This would be responsible for erasing flash, | |
33 | * copying the new image, and rebooting the machine. | |
34 | */ | |
35 | ||
36 | /* #define DEBUG */ | |
37 | ||
38 | #include <common.h> | |
39 | #include <command.h> | |
40 | #include <image.h> | |
41 | #include <malloc.h> | |
42 | #include <asm/byteorder.h> | |
d0dd1077 WD |
43 | #if defined(CONFIG_8xx) |
44 | #include <mpc8xx.h> | |
45 | #endif | |
46 | #ifdef CFG_HUSH_PARSER | |
47 | #include <hush.h> | |
48 | #endif | |
49 | ||
baa26db4 | 50 | #if defined(CONFIG_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT) |
d0dd1077 | 51 | |
d0dd1077 | 52 | int |
424c4abd | 53 | autoscript (ulong addr, const char *fit_uname) |
d0dd1077 | 54 | { |
424c4abd MB |
55 | ulong len; |
56 | image_header_t *hdr; | |
57 | ulong *data; | |
58 | char *cmd; | |
59 | int rcode = 0; | |
60 | int verify; | |
61 | #if defined(CONFIG_FIT) | |
62 | const void* fit_hdr; | |
63 | int noffset; | |
64 | const void *fit_data; | |
65 | size_t fit_len; | |
66 | #endif | |
d0dd1077 | 67 | |
b97a2a0a | 68 | verify = getenv_verify (); |
d0dd1077 | 69 | |
9a4daad0 | 70 | switch (genimg_get_format ((void *)addr)) { |
d5934ad7 MB |
71 | case IMAGE_FORMAT_LEGACY: |
72 | hdr = (image_header_t *)addr; | |
d0dd1077 | 73 | |
d5934ad7 MB |
74 | if (!image_check_magic (hdr)) { |
75 | puts ("Bad magic number\n"); | |
76 | return 1; | |
77 | } | |
d0dd1077 | 78 | |
d5934ad7 MB |
79 | if (!image_check_hcrc (hdr)) { |
80 | puts ("Bad header crc\n"); | |
d0dd1077 WD |
81 | return 1; |
82 | } | |
d0dd1077 | 83 | |
d5934ad7 MB |
84 | if (verify) { |
85 | if (!image_check_dcrc (hdr)) { | |
86 | puts ("Bad data crc\n"); | |
87 | return 1; | |
88 | } | |
89 | } | |
90 | ||
91 | if (!image_check_type (hdr, IH_TYPE_SCRIPT)) { | |
92 | puts ("Bad image type\n"); | |
93 | return 1; | |
94 | } | |
d0dd1077 | 95 | |
d5934ad7 MB |
96 | /* get length of script */ |
97 | data = (ulong *)image_get_data (hdr); | |
d0dd1077 | 98 | |
9a4daad0 | 99 | if ((len = uimage_to_cpu (*data)) == 0) { |
d5934ad7 MB |
100 | puts ("Empty Script\n"); |
101 | return 1; | |
102 | } | |
36cc8cbb BS |
103 | |
104 | /* | |
105 | * scripts are just multi-image files with one component, seek | |
106 | * past the zero-terminated sequence of image lengths to get | |
107 | * to the actual image data | |
108 | */ | |
109 | while (*data++); | |
d5934ad7 MB |
110 | break; |
111 | #if defined(CONFIG_FIT) | |
112 | case IMAGE_FORMAT_FIT: | |
424c4abd MB |
113 | if (fit_uname == NULL) { |
114 | puts ("No FIT subimage unit name\n"); | |
115 | return 1; | |
116 | } | |
117 | ||
118 | fit_hdr = (const void *)addr; | |
119 | if (!fit_check_format (fit_hdr)) { | |
120 | puts ("Bad FIT image format\n"); | |
121 | return 1; | |
122 | } | |
123 | ||
124 | /* get script component image node offset */ | |
125 | noffset = fit_image_get_node (fit_hdr, fit_uname); | |
126 | if (noffset < 0) { | |
127 | printf ("Can't find '%s' FIT subimage\n", fit_uname); | |
128 | return 1; | |
129 | } | |
130 | ||
131 | if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) { | |
132 | puts ("Not a image image\n"); | |
133 | return 1; | |
134 | } | |
135 | ||
136 | /* verify integrity */ | |
137 | if (verify) { | |
138 | if (!fit_image_check_hashes (fit_hdr, noffset)) { | |
139 | puts ("Bad Data Hash\n"); | |
140 | return 1; | |
141 | } | |
142 | } | |
143 | ||
144 | /* get script subimage data address and length */ | |
145 | if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) { | |
146 | puts ("Could not find script subimage data\n"); | |
147 | return 1; | |
148 | } | |
149 | ||
150 | data = (ulong *)fit_data; | |
151 | len = (ulong)fit_len; | |
152 | break; | |
d5934ad7 MB |
153 | #endif |
154 | default: | |
155 | puts ("Wrong image format for autoscript\n"); | |
d0dd1077 WD |
156 | return 1; |
157 | } | |
158 | ||
699b13a6 | 159 | debug ("** Script length: %ld\n", len); |
d0dd1077 WD |
160 | |
161 | if ((cmd = malloc (len + 1)) == NULL) { | |
162 | return 1; | |
163 | } | |
164 | ||
d0dd1077 | 165 | /* make sure cmd is null terminated */ |
f13e7b2e | 166 | memmove (cmd, (char *)data, len); |
d0dd1077 WD |
167 | *(cmd + len) = 0; |
168 | ||
8bde7f77 | 169 | #ifdef CFG_HUSH_PARSER /*?? */ |
d0dd1077 WD |
170 | rcode = parse_string_outer (cmd, FLAG_PARSE_SEMICOLON); |
171 | #else | |
172 | { | |
173 | char *line = cmd; | |
174 | char *next = cmd; | |
175 | ||
176 | /* | |
177 | * break into individual lines, | |
178 | * and execute each line; | |
179 | * terminate on error. | |
180 | */ | |
181 | while (*next) { | |
182 | if (*next == '\n') { | |
183 | *next = '\0'; | |
184 | /* run only non-empty commands */ | |
185 | if ((next - line) > 1) { | |
186 | debug ("** exec: \"%s\"\n", | |
187 | line); | |
188 | if (run_command (line, 0) < 0) { | |
189 | rcode = 1; | |
190 | break; | |
191 | } | |
192 | } | |
193 | line = next + 1; | |
194 | } | |
195 | ++next; | |
196 | } | |
197 | } | |
198 | #endif | |
199 | free (cmd); | |
200 | return rcode; | |
201 | } | |
202 | ||
90253178 JL |
203 | #endif |
204 | ||
8bde7f77 | 205 | /**************************************************/ |
baa26db4 | 206 | #if defined(CONFIG_CMD_AUTOSCRIPT) |
d0dd1077 WD |
207 | int |
208 | do_autoscript (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
209 | { | |
210 | ulong addr; | |
211 | int rcode; | |
424c4abd | 212 | const char *fit_uname = NULL; |
d0dd1077 | 213 | |
424c4abd | 214 | /* Find script image */ |
d0dd1077 WD |
215 | if (argc < 2) { |
216 | addr = CFG_LOAD_ADDR; | |
424c4abd MB |
217 | debug ("* autoscr: default load address = 0x%08lx\n", addr); |
218 | #if defined(CONFIG_FIT) | |
219 | } else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) { | |
220 | debug ("* autoscr: subimage '%s' from FIT image at 0x%08lx\n", | |
221 | fit_uname, addr); | |
222 | #endif | |
d0dd1077 | 223 | } else { |
424c4abd MB |
224 | addr = simple_strtoul(argv[1], NULL, 16); |
225 | debug ("* autoscr: cmdline image address = 0x%08lx\n", addr); | |
d0dd1077 WD |
226 | } |
227 | ||
424c4abd MB |
228 | printf ("## Executing script at %08lx\n", addr); |
229 | rcode = autoscript (addr, fit_uname); | |
d0dd1077 WD |
230 | return rcode; |
231 | } | |
8bde7f77 | 232 | |
0d498393 WD |
233 | U_BOOT_CMD( |
234 | autoscr, 2, 0, do_autoscript, | |
8bde7f77 WD |
235 | "autoscr - run script from memory\n", |
236 | "[addr] - run script starting at addr" | |
237 | " - A valid autoscr header must be present\n" | |
424c4abd MB |
238 | #if defined(CONFIG_FIT) |
239 | "For FIT format uImage addr must include subimage\n" | |
240 | "unit name in the form of addr:<subimg_uname>\n" | |
90253178 | 241 | #endif |
424c4abd | 242 | ); |
90253178 | 243 | #endif |