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 CFG_HUSH_PARSER
50 #if defined(CONFIG_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)
53 autoscript (ulong addr)
56 image_header_t *hdr = (image_header_t *)addr;
62 verify = getenv_verify ();
64 if (!image_check_magic (hdr)) {
65 puts ("Bad magic number\n");
69 if (!image_check_hcrc (hdr)) {
70 puts ("Bad header crc\n");
75 if (!image_check_dcrc (hdr)) {
76 puts ("Bad data crc\n");
81 if (!image_check_type (hdr, IH_TYPE_SCRIPT)) {
82 puts ("Bad image type\n");
86 /* get length of script */
87 data = (ulong *)image_get_data (hdr);
89 if ((len = image_to_cpu (*data)) == 0) {
90 puts ("Empty Script\n");
94 debug ("** Script length: %ld\n", len);
96 if ((cmd = malloc (len + 1)) == NULL) {
102 /* make sure cmd is null terminated */
103 memmove (cmd, (char *)data, len);
106 #ifdef CFG_HUSH_PARSER /*?? */
107 rcode = parse_string_outer (cmd, FLAG_PARSE_SEMICOLON);
114 * break into individual lines,
115 * and execute each line;
116 * terminate on error.
121 /* run only non-empty commands */
122 if ((next - line) > 1) {
123 debug ("** exec: \"%s\"\n",
125 if (run_command (line, 0) < 0) {
142 /**************************************************/
143 #if defined(CONFIG_CMD_AUTOSCRIPT)
145 do_autoscript (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
151 addr = CFG_LOAD_ADDR;
153 addr = simple_strtoul (argv[1],0,16);
156 printf ("## Executing script at %08lx\n",addr);
157 rcode = autoscript (addr);
161 #if defined(CONFIG_CMD_AUTOSCRIPT)
163 autoscr, 2, 0, do_autoscript,
164 "autoscr - run script from memory\n",
165 "[addr] - run script starting at addr"
166 " - A valid autoscr header must be present\n"