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git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_autoscript.c
3 * Kyle Harris, kharris@nexus-tech.net
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
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.
42 #include <asm/byteorder.h>
43 #if defined(CONFIG_8xx)
46 #ifdef CONFIG_SYS_HUSH_PARSER
51 autoscript (ulong addr
, const char *fit_uname
)
59 #if defined(CONFIG_FIT)
66 verify
= getenv_yesno ("verify");
68 switch (genimg_get_format ((void *)addr
)) {
69 case IMAGE_FORMAT_LEGACY
:
70 hdr
= (image_header_t
*)addr
;
72 if (!image_check_magic (hdr
)) {
73 puts ("Bad magic number\n");
77 if (!image_check_hcrc (hdr
)) {
78 puts ("Bad header crc\n");
83 if (!image_check_dcrc (hdr
)) {
84 puts ("Bad data crc\n");
89 if (!image_check_type (hdr
, IH_TYPE_SCRIPT
)) {
90 puts ("Bad image type\n");
94 /* get length of script */
95 data
= (ulong
*)image_get_data (hdr
);
97 if ((len
= uimage_to_cpu (*data
)) == 0) {
98 puts ("Empty Script\n");
103 * scripts are just multi-image files with one component, seek
104 * past the zero-terminated sequence of image lengths to get
105 * to the actual image data
109 #if defined(CONFIG_FIT)
110 case IMAGE_FORMAT_FIT
:
111 if (fit_uname
== NULL
) {
112 puts ("No FIT subimage unit name\n");
116 fit_hdr
= (const void *)addr
;
117 if (!fit_check_format (fit_hdr
)) {
118 puts ("Bad FIT image format\n");
122 /* get script component image node offset */
123 noffset
= fit_image_get_node (fit_hdr
, fit_uname
);
125 printf ("Can't find '%s' FIT subimage\n", fit_uname
);
129 if (!fit_image_check_type (fit_hdr
, noffset
, IH_TYPE_SCRIPT
)) {
130 puts ("Not a image image\n");
134 /* verify integrity */
136 if (!fit_image_check_hashes (fit_hdr
, noffset
)) {
137 puts ("Bad Data Hash\n");
142 /* get script subimage data address and length */
143 if (fit_image_get_data (fit_hdr
, noffset
, &fit_data
, &fit_len
)) {
144 puts ("Could not find script subimage data\n");
148 data
= (ulong
*)fit_data
;
149 len
= (ulong
)fit_len
;
153 puts ("Wrong image format for autoscript\n");
157 debug ("** Script length: %ld\n", len
);
159 if ((cmd
= malloc (len
+ 1)) == NULL
) {
163 /* make sure cmd is null terminated */
164 memmove (cmd
, (char *)data
, len
);
167 #ifdef CONFIG_SYS_HUSH_PARSER /*?? */
168 rcode
= parse_string_outer (cmd
, FLAG_PARSE_SEMICOLON
);
175 * break into individual lines,
176 * and execute each line;
177 * terminate on error.
182 /* run only non-empty commands */
184 debug ("** exec: \"%s\"\n",
186 if (run_command (line
, 0) < 0) {
195 if (rcode
== 0 && *line
)
196 rcode
= (run_command(line
, 0) >= 0);
203 /**************************************************/
204 #if defined(CONFIG_CMD_AUTOSCRIPT)
206 do_autoscript (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
210 const char *fit_uname
= NULL
;
212 /* Find script image */
214 addr
= CONFIG_SYS_LOAD_ADDR
;
215 debug ("* autoscr: default load address = 0x%08lx\n", addr
);
216 #if defined(CONFIG_FIT)
217 } else if (fit_parse_subimage (argv
[1], load_addr
, &addr
, &fit_uname
)) {
218 debug ("* autoscr: subimage '%s' from FIT image at 0x%08lx\n",
222 addr
= simple_strtoul(argv
[1], NULL
, 16);
223 debug ("* autoscr: cmdline image address = 0x%08lx\n", addr
);
226 printf ("## Executing script at %08lx\n", addr
);
227 rcode
= autoscript (addr
, fit_uname
);
232 autoscr
, 2, 0, do_autoscript
,
233 "autoscr - run script from memory\n",
234 "[addr] - run script starting at addr"
235 " - A valid autoscr header must be present\n"
236 #if defined(CONFIG_FIT)
237 "For FIT format uImage addr must include subimage\n"
238 "unit name in the form of addr:<subimg_uname>\n"