mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-16 23:18:51 +09:00
![Teddy Reed](/assets/img/avatar_default.png)
When building a FIT with external data (-E), U-Boot proper may require absolute positioning for executing the external firmware. To acheive this use the (-p) switch, which will replace the amended 'data-offset' with 'data-position' indicating the absolute position of external data. It is considered an error if the requested absolute position overlaps with the initial data required for the compact FIT. Signed-off-by: Teddy Reed <teddy.reed@gmail.com>
663 lines
16 KiB
C
663 lines
16 KiB
C
/*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2009
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include "mkimage.h"
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#include <image.h>
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#include <version.h>
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static void copy_file(int, const char *, int);
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/* parameters initialized by core will be used by the image type code */
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static struct image_tool_params params = {
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.os = IH_OS_LINUX,
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.arch = IH_ARCH_PPC,
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.type = IH_TYPE_KERNEL,
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.comp = IH_COMP_GZIP,
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.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
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.imagename = "",
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.imagename2 = "",
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};
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static int h_compare_image_name(const void *vtype1, const void *vtype2)
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{
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const int *type1 = vtype1;
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const int *type2 = vtype2;
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const char *name1 = genimg_get_type_short_name(*type1);
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const char *name2 = genimg_get_type_short_name(*type2);
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return strcmp(name1, name2);
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}
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/* Show all image types supported by mkimage */
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static void show_image_types(void)
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{
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struct image_type_params *tparams;
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int order[IH_TYPE_COUNT];
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int count;
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int type;
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int i;
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/* Sort the names in order of short name for easier reading */
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memset(order, '\0', sizeof(order));
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for (count = 0, type = 0; type < IH_TYPE_COUNT; type++) {
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tparams = imagetool_get_type(type);
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if (tparams)
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order[count++] = type;
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}
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qsort(order, count, sizeof(int), h_compare_image_name);
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fprintf(stderr, "\nInvalid image type. Supported image types:\n");
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for (i = 0; i < count; i++) {
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type = order[i];
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tparams = imagetool_get_type(type);
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if (tparams) {
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fprintf(stderr, "\t%-15s %s\n",
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genimg_get_type_short_name(type),
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genimg_get_type_name(type));
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}
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}
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fprintf(stderr, "\n");
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}
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static void usage(const char *msg)
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{
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fprintf(stderr, "Error: %s\n", msg);
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fprintf(stderr, "Usage: %s -l image\n"
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" -l ==> list image header information\n",
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params.cmdname);
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fprintf(stderr,
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" %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
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" -A ==> set architecture to 'arch'\n"
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" -O ==> set operating system to 'os'\n"
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" -T ==> set image type to 'type'\n"
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" -C ==> set compression type 'comp'\n"
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" -a ==> set load address to 'addr' (hex)\n"
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" -e ==> set entry point to 'ep' (hex)\n"
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" -n ==> set image name to 'name'\n"
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" -d ==> use image data from 'datafile'\n"
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" -x ==> set XIP (execute in place)\n",
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params.cmdname);
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fprintf(stderr,
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" %s [-D dtc_options] [-f fit-image.its|-f auto|-F] [-b <dtb> [-b <dtb>]] fit-image\n"
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" <dtb> file is used with -f auto, it may occour multiple times.\n",
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params.cmdname);
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fprintf(stderr,
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" -D => set all options for device tree compiler\n"
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" -f => input filename for FIT source\n");
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#ifdef CONFIG_FIT_SIGNATURE
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fprintf(stderr,
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"Signing / verified boot options: [-E] [-k keydir] [-K dtb] [ -c <comment>] [-p addr] [-r]\n"
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" -E => place data outside of the FIT structure\n"
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" -k => set directory containing private keys\n"
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" -K => write public keys to this .dtb file\n"
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" -c => add comment in signature node\n"
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" -F => re-sign existing FIT image\n"
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" -p => place external data at a static position\n"
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" -r => mark keys used as 'required' in dtb\n");
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#else
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fprintf(stderr,
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"Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
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#endif
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fprintf(stderr, " %s -V ==> print version information and exit\n",
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params.cmdname);
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fprintf(stderr, "Use -T to see a list of available image types\n");
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exit(EXIT_FAILURE);
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}
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static int add_content(int type, const char *fname)
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{
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struct content_info *cont;
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cont = calloc(1, sizeof(*cont));
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if (!cont)
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return -1;
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cont->type = type;
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cont->fname = fname;
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if (params.content_tail)
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params.content_tail->next = cont;
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else
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params.content_head = cont;
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params.content_tail = cont;
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return 0;
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}
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static void process_args(int argc, char **argv)
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{
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char *ptr;
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int type = IH_TYPE_INVALID;
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char *datafile = NULL;
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int opt;
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while ((opt = getopt(argc, argv,
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"a:A:b:cC:d:D:e:Ef:Fk:K:ln:p:O:rR:qsT:vVx")) != -1) {
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switch (opt) {
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case 'a':
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params.addr = strtoull(optarg, &ptr, 16);
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if (*ptr) {
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fprintf(stderr, "%s: invalid load address %s\n",
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params.cmdname, optarg);
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exit(EXIT_FAILURE);
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}
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break;
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case 'A':
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params.arch = genimg_get_arch_id(optarg);
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if (params.arch < 0)
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usage("Invalid architecture");
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break;
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case 'b':
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if (add_content(IH_TYPE_FLATDT, optarg)) {
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fprintf(stderr,
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"%s: Out of memory adding content '%s'",
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params.cmdname, optarg);
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exit(EXIT_FAILURE);
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}
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break;
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case 'c':
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params.comment = optarg;
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break;
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case 'C':
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params.comp = genimg_get_comp_id(optarg);
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if (params.comp < 0)
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usage("Invalid compression type");
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break;
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case 'd':
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params.datafile = optarg;
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params.dflag = 1;
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break;
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case 'D':
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params.dtc = optarg;
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break;
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case 'e':
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params.ep = strtoull(optarg, &ptr, 16);
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if (*ptr) {
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fprintf(stderr, "%s: invalid entry point %s\n",
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params.cmdname, optarg);
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exit(EXIT_FAILURE);
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}
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params.eflag = 1;
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break;
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case 'E':
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params.external_data = true;
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break;
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case 'f':
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datafile = optarg;
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params.auto_its = !strcmp(datafile, "auto");
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/* no break */
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case 'F':
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/*
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* The flattened image tree (FIT) format
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* requires a flattened device tree image type
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*/
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params.fit_image_type = params.type;
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params.type = IH_TYPE_FLATDT;
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params.fflag = 1;
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break;
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case 'k':
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params.keydir = optarg;
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break;
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case 'K':
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params.keydest = optarg;
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break;
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case 'l':
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params.lflag = 1;
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break;
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case 'n':
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params.imagename = optarg;
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break;
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case 'O':
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params.os = genimg_get_os_id(optarg);
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if (params.os < 0)
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usage("Invalid operating system");
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break;
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case 'p':
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params.external_offset = strtoull(optarg, &ptr, 16);
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if (*ptr) {
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fprintf(stderr, "%s: invalid offset size %s\n",
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params.cmdname, optarg);
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exit(EXIT_FAILURE);
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}
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case 'q':
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params.quiet = 1;
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break;
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case 'r':
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params.require_keys = 1;
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break;
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case 'R':
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/*
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* This entry is for the second configuration
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* file, if only one is not enough.
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*/
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params.imagename2 = optarg;
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break;
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case 's':
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params.skipcpy = 1;
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break;
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case 'T':
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type = genimg_get_type_id(optarg);
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if (type < 0) {
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show_image_types();
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usage("Invalid image type");
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}
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break;
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case 'v':
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params.vflag++;
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break;
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case 'V':
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printf("mkimage version %s\n", PLAIN_VERSION);
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exit(EXIT_SUCCESS);
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case 'x':
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params.xflag++;
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break;
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default:
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usage("Invalid option");
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}
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}
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/* The last parameter is expected to be the imagefile */
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if (optind < argc)
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params.imagefile = argv[optind];
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/*
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* For auto-generated FIT images we need to know the image type to put
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* in the FIT, which is separate from the file's image type (which
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* will always be IH_TYPE_FLATDT in this case).
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*/
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if (params.type == IH_TYPE_FLATDT) {
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params.fit_image_type = type;
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if (!params.auto_its)
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params.datafile = datafile;
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} else if (type != IH_TYPE_INVALID) {
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params.type = type;
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}
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if (!params.imagefile)
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usage("Missing output filename");
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}
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int main(int argc, char **argv)
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{
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int ifd = -1;
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struct stat sbuf;
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char *ptr;
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int retval = 0;
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struct image_type_params *tparams = NULL;
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int pad_len = 0;
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int dfd;
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params.cmdname = *argv;
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params.addr = 0;
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params.ep = 0;
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process_args(argc, argv);
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/* set tparams as per input type_id */
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tparams = imagetool_get_type(params.type);
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if (tparams == NULL) {
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fprintf (stderr, "%s: unsupported type %s\n",
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params.cmdname, genimg_get_type_name(params.type));
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exit (EXIT_FAILURE);
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}
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/*
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* check the passed arguments parameters meets the requirements
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* as per image type to be generated/listed
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*/
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if (tparams->check_params)
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if (tparams->check_params (¶ms))
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usage("Bad parameters for image type");
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if (!params.eflag) {
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params.ep = params.addr;
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/* If XIP, entry point must be after the U-Boot header */
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if (params.xflag)
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params.ep += tparams->header_size;
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}
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if (params.fflag){
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if (tparams->fflag_handle)
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/*
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* in some cases, some additional processing needs
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* to be done if fflag is defined
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*
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* For ex. fit_handle_file for Fit file support
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*/
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retval = tparams->fflag_handle(¶ms);
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if (retval != EXIT_SUCCESS)
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exit (retval);
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}
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if (params.lflag || params.fflag) {
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ifd = open (params.imagefile, O_RDONLY|O_BINARY);
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} else {
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ifd = open (params.imagefile,
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O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
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}
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if (ifd < 0) {
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fprintf (stderr, "%s: Can't open %s: %s\n",
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params.cmdname, params.imagefile,
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strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (params.lflag || params.fflag) {
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/*
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* list header information of existing image
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*/
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if (fstat(ifd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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params.cmdname, params.imagefile,
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strerror(errno));
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exit (EXIT_FAILURE);
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}
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if ((unsigned)sbuf.st_size < tparams->header_size) {
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fprintf (stderr,
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"%s: Bad size: \"%s\" is not valid image\n",
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params.cmdname, params.imagefile);
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exit (EXIT_FAILURE);
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}
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ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
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if (ptr == MAP_FAILED) {
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fprintf (stderr, "%s: Can't read %s: %s\n",
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params.cmdname, params.imagefile,
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strerror(errno));
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exit (EXIT_FAILURE);
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}
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/*
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* scan through mkimage registry for all supported image types
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* and verify the input image file header for match
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* Print the image information for matched image type
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* Returns the error code if not matched
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*/
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retval = imagetool_verify_print_header(ptr, &sbuf,
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tparams, ¶ms);
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(void) munmap((void *)ptr, sbuf.st_size);
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(void) close (ifd);
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exit (retval);
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}
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if ((params.type != IH_TYPE_MULTI) && (params.type != IH_TYPE_SCRIPT)) {
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dfd = open(params.datafile, O_RDONLY | O_BINARY);
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if (dfd < 0) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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params.cmdname, params.datafile,
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strerror(errno));
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exit(EXIT_FAILURE);
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}
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if (fstat(dfd, &sbuf) < 0) {
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fprintf(stderr, "%s: Can't stat %s: %s\n",
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params.cmdname, params.datafile,
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strerror(errno));
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exit(EXIT_FAILURE);
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}
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params.file_size = sbuf.st_size + tparams->header_size;
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close(dfd);
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}
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/*
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* In case there an header with a variable
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* length will be added, the corresponding
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* function is called. This is responsible to
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* allocate memory for the header itself.
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*/
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if (tparams->vrec_header)
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pad_len = tparams->vrec_header(¶ms, tparams);
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else
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memset(tparams->hdr, 0, tparams->header_size);
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if (write(ifd, tparams->hdr, tparams->header_size)
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!= tparams->header_size) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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params.cmdname, params.imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (!params.skipcpy) {
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if (params.type == IH_TYPE_MULTI ||
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params.type == IH_TYPE_SCRIPT) {
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char *file = params.datafile;
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uint32_t size;
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for (;;) {
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char *sep = NULL;
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if (file) {
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if ((sep = strchr(file, ':')) != NULL) {
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*sep = '\0';
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}
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if (stat (file, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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params.cmdname, file, strerror(errno));
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exit (EXIT_FAILURE);
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}
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size = cpu_to_uimage (sbuf.st_size);
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} else {
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size = 0;
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}
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if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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params.cmdname, params.imagefile,
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strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (!file) {
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break;
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}
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if (sep) {
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*sep = ':';
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file = sep + 1;
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} else {
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file = NULL;
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}
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}
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file = params.datafile;
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for (;;) {
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char *sep = strchr(file, ':');
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if (sep) {
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*sep = '\0';
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copy_file (ifd, file, 1);
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*sep++ = ':';
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file = sep;
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} else {
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copy_file (ifd, file, 0);
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break;
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}
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}
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} else if (params.type == IH_TYPE_PBLIMAGE) {
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/* PBL has special Image format, implements its' own */
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pbl_load_uboot(ifd, ¶ms);
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} else {
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copy_file(ifd, params.datafile, pad_len);
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}
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}
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/* We're a bit of paranoid */
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#if defined(_POSIX_SYNCHRONIZED_IO) && \
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!defined(__sun__) && \
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!defined(__FreeBSD__) && \
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!defined(__OpenBSD__) && \
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!defined(__APPLE__)
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(void) fdatasync (ifd);
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#else
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(void) fsync (ifd);
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#endif
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if (fstat(ifd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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params.cmdname, params.imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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params.file_size = sbuf.st_size;
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ptr = mmap(0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
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if (ptr == MAP_FAILED) {
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fprintf (stderr, "%s: Can't map %s: %s\n",
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params.cmdname, params.imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
|
|
|
|
/* Setup the image header as per input image type*/
|
|
if (tparams->set_header)
|
|
tparams->set_header (ptr, &sbuf, ifd, ¶ms);
|
|
else {
|
|
fprintf (stderr, "%s: Can't set header for %s: %s\n",
|
|
params.cmdname, tparams->name, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* Print the image information by processing image header */
|
|
if (tparams->print_header)
|
|
tparams->print_header (ptr);
|
|
else {
|
|
fprintf (stderr, "%s: Can't print header for %s: %s\n",
|
|
params.cmdname, tparams->name, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
(void) munmap((void *)ptr, sbuf.st_size);
|
|
|
|
/* We're a bit of paranoid */
|
|
#if defined(_POSIX_SYNCHRONIZED_IO) && \
|
|
!defined(__sun__) && \
|
|
!defined(__FreeBSD__) && \
|
|
!defined(__OpenBSD__) && \
|
|
!defined(__APPLE__)
|
|
(void) fdatasync (ifd);
|
|
#else
|
|
(void) fsync (ifd);
|
|
#endif
|
|
|
|
if (close(ifd)) {
|
|
fprintf (stderr, "%s: Write error on %s: %s\n",
|
|
params.cmdname, params.imagefile, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
exit (EXIT_SUCCESS);
|
|
}
|
|
|
|
static void
|
|
copy_file (int ifd, const char *datafile, int pad)
|
|
{
|
|
int dfd;
|
|
struct stat sbuf;
|
|
unsigned char *ptr;
|
|
int tail;
|
|
int zero = 0;
|
|
uint8_t zeros[4096];
|
|
int offset = 0;
|
|
int size;
|
|
struct image_type_params *tparams = imagetool_get_type(params.type);
|
|
|
|
memset(zeros, 0, sizeof(zeros));
|
|
|
|
if (params.vflag) {
|
|
fprintf (stderr, "Adding Image %s\n", datafile);
|
|
}
|
|
|
|
if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
|
|
fprintf (stderr, "%s: Can't open %s: %s\n",
|
|
params.cmdname, datafile, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
if (fstat(dfd, &sbuf) < 0) {
|
|
fprintf (stderr, "%s: Can't stat %s: %s\n",
|
|
params.cmdname, datafile, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
|
|
if (ptr == MAP_FAILED) {
|
|
fprintf (stderr, "%s: Can't read %s: %s\n",
|
|
params.cmdname, datafile, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
if (params.xflag) {
|
|
unsigned char *p = NULL;
|
|
/*
|
|
* XIP: do not append the image_header_t at the
|
|
* beginning of the file, but consume the space
|
|
* reserved for it.
|
|
*/
|
|
|
|
if ((unsigned)sbuf.st_size < tparams->header_size) {
|
|
fprintf (stderr,
|
|
"%s: Bad size: \"%s\" is too small for XIP\n",
|
|
params.cmdname, datafile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
for (p = ptr; p < ptr + tparams->header_size; p++) {
|
|
if ( *p != 0xff ) {
|
|
fprintf (stderr,
|
|
"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
|
|
params.cmdname, datafile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
offset = tparams->header_size;
|
|
}
|
|
|
|
size = sbuf.st_size - offset;
|
|
if (write(ifd, ptr + offset, size) != size) {
|
|
fprintf (stderr, "%s: Write error on %s: %s\n",
|
|
params.cmdname, params.imagefile, strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
tail = size % 4;
|
|
if ((pad == 1) && (tail != 0)) {
|
|
|
|
if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
|
|
fprintf (stderr, "%s: Write error on %s: %s\n",
|
|
params.cmdname, params.imagefile,
|
|
strerror(errno));
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
} else if (pad > 1) {
|
|
while (pad > 0) {
|
|
int todo = sizeof(zeros);
|
|
|
|
if (todo > pad)
|
|
todo = pad;
|
|
if (write(ifd, (char *)&zeros, todo) != todo) {
|
|
fprintf(stderr, "%s: Write error on %s: %s\n",
|
|
params.cmdname, params.imagefile,
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
pad -= todo;
|
|
}
|
|
}
|
|
|
|
(void) munmap((void *)ptr, sbuf.st_size);
|
|
(void) close (dfd);
|
|
}
|