--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, kharris@nexus-tech.net
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * The "source" command allows to define "script images", i. e. files
+ * that contain command sequences that can be executed by the command
+ * interpreter. It returns the exit status of the last command
+ * executed from the script. This is very similar to running a shell
+ * script in a UNIX shell, hence the name for the command.
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <malloc.h>
+#include <asm/byteorder.h>
+#include <asm/io.h>
+#if defined(CONFIG_8xx)
+#include <mpc8xx.h>
+#endif
+
+int
+source (ulong addr, const char *fit_uname)
+{
+ ulong len;
+ const image_header_t *hdr;
+ ulong *data;
+ int verify;
+ void *buf;
+#if defined(CONFIG_FIT)
+ const void* fit_hdr;
+ int noffset;
+ const void *fit_data;
+ size_t fit_len;
+#endif
+
+ verify = getenv_yesno ("verify");
+
+ buf = map_sysmem(addr, 0);
+ switch (genimg_get_format(buf)) {
+ case IMAGE_FORMAT_LEGACY:
+ hdr = buf;
+
+ if (!image_check_magic (hdr)) {
+ puts ("Bad magic number\n");
+ return 1;
+ }
+
+ if (!image_check_hcrc (hdr)) {
+ puts ("Bad header crc\n");
+ return 1;
+ }
+
+ if (verify) {
+ if (!image_check_dcrc (hdr)) {
+ puts ("Bad data crc\n");
+ return 1;
+ }
+ }
+
+ if (!image_check_type (hdr, IH_TYPE_SCRIPT)) {
+ puts ("Bad image type\n");
+ return 1;
+ }
+
+ /* get length of script */
+ data = (ulong *)image_get_data (hdr);
+
+ if ((len = uimage_to_cpu (*data)) == 0) {
+ puts ("Empty Script\n");
+ return 1;
+ }
+
+ /*
+ * scripts are just multi-image files with one component, seek
+ * past the zero-terminated sequence of image lengths to get
+ * to the actual image data
+ */
+ while (*data++);
+ break;
+#if defined(CONFIG_FIT)
+ case IMAGE_FORMAT_FIT:
+ if (fit_uname == NULL) {
+ puts ("No FIT subimage unit name\n");
+ return 1;
+ }
+
+ fit_hdr = buf;
+ if (!fit_check_format (fit_hdr)) {
+ puts ("Bad FIT image format\n");
+ return 1;
+ }
+
+ /* get script component image node offset */
+ noffset = fit_image_get_node (fit_hdr, fit_uname);
+ if (noffset < 0) {
+ printf ("Can't find '%s' FIT subimage\n", fit_uname);
+ return 1;
+ }
+
+ if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) {
+ puts ("Not a image image\n");
+ return 1;
+ }
+
+ /* verify integrity */
+ if (verify) {
+ if (!fit_image_verify(fit_hdr, noffset)) {
+ puts ("Bad Data Hash\n");
+ return 1;
+ }
+ }
+
+ /* get script subimage data address and length */
+ if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) {
+ puts ("Could not find script subimage data\n");
+ return 1;
+ }
+
+ data = (ulong *)fit_data;
+ len = (ulong)fit_len;
+ break;
+#endif
+ default:
+ puts ("Wrong image format for \"source\" command\n");
+ return 1;
+ }
+
+ debug ("** Script length: %ld\n", len);
+ return run_command_list((char *)data, len, 0);
+}
+
+/**************************************************/
+#if defined(CONFIG_CMD_SOURCE)
+int
+do_source (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+ int rcode;
+ const char *fit_uname = NULL;
+
+ /* Find script image */
+ if (argc < 2) {
+ addr = CONFIG_SYS_LOAD_ADDR;
+ debug ("* source: default load address = 0x%08lx\n", addr);
+#if defined(CONFIG_FIT)
+ } else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) {
+ debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
+ fit_uname, addr);
+#endif
+ } else {
+ addr = simple_strtoul(argv[1], NULL, 16);
+ debug ("* source: cmdline image address = 0x%08lx\n", addr);
+ }
+
+ printf ("## Executing script at %08lx\n", addr);
+ rcode = source (addr, fit_uname);
+ return rcode;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char source_help_text[] =
+ "[addr]\n"
+ "\t- run script starting at addr\n"
+ "\t- A valid image header must be present"
+#if defined(CONFIG_FIT)
+ "\n"
+ "For FIT format uImage addr must include subimage\n"
+ "unit name in the form of addr:<subimg_uname>"
+#endif
+ "";
+#endif
+
+U_BOOT_CMD(
+ source, 2, 0, do_source,
+ "run script from memory", source_help_text
+);
+#endif
Code Review / kvmfornfv.git / blobdiff