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git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_source.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 * The "source" command allows to define "script images", i. e. files
26 * that contain command sequences that can be executed by the command
27 * interpreter. It returns the exit status of the last command
28 * executed from the script. This is very similar to running a shell
29 * script in a UNIX shell, hence the name for the command.
38 #include <asm/byteorder.h>
39 #if defined(CONFIG_8xx)
42 #ifdef CONFIG_SYS_HUSH_PARSER
47 source (ulong addr
, const char *fit_uname
)
55 #if defined(CONFIG_FIT)
62 verify
= getenv_yesno ("verify");
64 switch (genimg_get_format ((void *)addr
)) {
65 case IMAGE_FORMAT_LEGACY
:
66 hdr
= (image_header_t
*)addr
;
68 if (!image_check_magic (hdr
)) {
69 puts ("Bad magic number\n");
73 if (!image_check_hcrc (hdr
)) {
74 puts ("Bad header crc\n");
79 if (!image_check_dcrc (hdr
)) {
80 puts ("Bad data crc\n");
85 if (!image_check_type (hdr
, IH_TYPE_SCRIPT
)) {
86 puts ("Bad image type\n");
90 /* get length of script */
91 data
= (ulong
*)image_get_data (hdr
);
93 if ((len
= uimage_to_cpu (*data
)) == 0) {
94 puts ("Empty Script\n");
99 * scripts are just multi-image files with one component, seek
100 * past the zero-terminated sequence of image lengths to get
101 * to the actual image data
105 #if defined(CONFIG_FIT)
106 case IMAGE_FORMAT_FIT
:
107 if (fit_uname
== NULL
) {
108 puts ("No FIT subimage unit name\n");
112 fit_hdr
= (const void *)addr
;
113 if (!fit_check_format (fit_hdr
)) {
114 puts ("Bad FIT image format\n");
118 /* get script component image node offset */
119 noffset
= fit_image_get_node (fit_hdr
, fit_uname
);
121 printf ("Can't find '%s' FIT subimage\n", fit_uname
);
125 if (!fit_image_check_type (fit_hdr
, noffset
, IH_TYPE_SCRIPT
)) {
126 puts ("Not a image image\n");
130 /* verify integrity */
132 if (!fit_image_check_hashes (fit_hdr
, noffset
)) {
133 puts ("Bad Data Hash\n");
138 /* get script subimage data address and length */
139 if (fit_image_get_data (fit_hdr
, noffset
, &fit_data
, &fit_len
)) {
140 puts ("Could not find script subimage data\n");
144 data
= (ulong
*)fit_data
;
145 len
= (ulong
)fit_len
;
149 puts ("Wrong image format for \"source\" command\n");
153 debug ("** Script length: %ld\n", len
);
155 if ((cmd
= malloc (len
+ 1)) == NULL
) {
159 /* make sure cmd is null terminated */
160 memmove (cmd
, (char *)data
, len
);
163 #ifdef CONFIG_SYS_HUSH_PARSER /*?? */
164 rcode
= parse_string_outer (cmd
, FLAG_PARSE_SEMICOLON
);
171 * break into individual lines,
172 * and execute each line;
173 * terminate on error.
178 /* run only non-empty commands */
180 debug ("** exec: \"%s\"\n",
182 if (run_command (line
, 0) < 0) {
191 if (rcode
== 0 && *line
)
192 rcode
= (run_command(line
, 0) >= 0);
199 /**************************************************/
200 #if defined(CONFIG_CMD_SOURCE)
202 do_source (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
206 const char *fit_uname
= NULL
;
208 /* Find script image */
210 addr
= CONFIG_SYS_LOAD_ADDR
;
211 debug ("* source: default load address = 0x%08lx\n", addr
);
212 #if defined(CONFIG_FIT)
213 } else if (fit_parse_subimage (argv
[1], load_addr
, &addr
, &fit_uname
)) {
214 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
218 addr
= simple_strtoul(argv
[1], NULL
, 16);
219 debug ("* source: cmdline image address = 0x%08lx\n", addr
);
222 printf ("## Executing script at %08lx\n", addr
);
223 rcode
= source (addr
, fit_uname
);
228 source
, 2, 0, do_source
,
229 "run script from memory",
231 "\t- run script starting at addr\n"
232 "\t- A valid image header must be present"
233 #if defined(CONFIG_FIT)
235 "For FIT format uImage addr must include subimage\n"
236 "unit name in the form of addr:<subimg_uname>"