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git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/source.c
3 * Kyle Harris, kharris@nexus-tech.net
5 * SPDX-License-Identifier: GPL-2.0+
9 * The "source" command allows to define "script images", i. e. files
10 * that contain command sequences that can be executed by the command
11 * interpreter. It returns the exit status of the last command
12 * executed from the script. This is very similar to running a shell
13 * script in a UNIX shell, hence the name for the command.
23 #include <asm/byteorder.h>
27 source (ulong addr
, const char *fit_uname
)
30 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
31 const image_header_t
*hdr
;
36 #if defined(CONFIG_FIT)
43 verify
= env_get_yesno("verify");
45 buf
= map_sysmem(addr
, 0);
46 switch (genimg_get_format(buf
)) {
47 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
48 case IMAGE_FORMAT_LEGACY
:
51 if (!image_check_magic (hdr
)) {
52 puts ("Bad magic number\n");
56 if (!image_check_hcrc (hdr
)) {
57 puts ("Bad header crc\n");
62 if (!image_check_dcrc (hdr
)) {
63 puts ("Bad data crc\n");
68 if (!image_check_type (hdr
, IH_TYPE_SCRIPT
)) {
69 puts ("Bad image type\n");
73 /* get length of script */
74 data
= (u32
*)image_get_data (hdr
);
76 if ((len
= uimage_to_cpu (*data
)) == 0) {
77 puts ("Empty Script\n");
82 * scripts are just multi-image files with one component, seek
83 * past the zero-terminated sequence of image lengths to get
84 * to the actual image data
89 #if defined(CONFIG_FIT)
90 case IMAGE_FORMAT_FIT
:
91 if (fit_uname
== NULL
) {
92 puts ("No FIT subimage unit name\n");
97 if (!fit_check_format (fit_hdr
)) {
98 puts ("Bad FIT image format\n");
102 /* get script component image node offset */
103 noffset
= fit_image_get_node (fit_hdr
, fit_uname
);
105 printf ("Can't find '%s' FIT subimage\n", fit_uname
);
109 if (!fit_image_check_type (fit_hdr
, noffset
, IH_TYPE_SCRIPT
)) {
110 puts ("Not a image image\n");
114 /* verify integrity */
116 if (!fit_image_verify(fit_hdr
, noffset
)) {
117 puts ("Bad Data Hash\n");
122 /* get script subimage data address and length */
123 if (fit_image_get_data (fit_hdr
, noffset
, &fit_data
, &fit_len
)) {
124 puts ("Could not find script subimage data\n");
128 data
= (u32
*)fit_data
;
129 len
= (ulong
)fit_len
;
133 puts ("Wrong image format for \"source\" command\n");
137 debug ("** Script length: %ld\n", len
);
138 return run_command_list((char *)data
, len
, 0);
141 /**************************************************/
142 #if defined(CONFIG_CMD_SOURCE)
143 static int do_source(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
147 const char *fit_uname
= NULL
;
149 /* Find script image */
151 addr
= CONFIG_SYS_LOAD_ADDR
;
152 debug ("* source: default load address = 0x%08lx\n", addr
);
153 #if defined(CONFIG_FIT)
154 } else if (fit_parse_subimage (argv
[1], load_addr
, &addr
, &fit_uname
)) {
155 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
159 addr
= simple_strtoul(argv
[1], NULL
, 16);
160 debug ("* source: cmdline image address = 0x%08lx\n", addr
);
163 printf ("## Executing script at %08lx\n", addr
);
164 rcode
= source (addr
, fit_uname
);
168 #ifdef CONFIG_SYS_LONGHELP
169 static char source_help_text
[] =
171 "\t- run script starting at addr\n"
172 "\t- A valid image header must be present"
173 #if defined(CONFIG_FIT)
175 "For FIT format uImage addr must include subimage\n"
176 "unit name in the form of addr:<subimg_uname>"
182 source
, 2, 0, do_source
,
183 "run script from memory", source_help_text