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835 lines
20 KiB
835 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
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* (C) Copyright 2008 Semihalf |
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* |
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* (C) Copyright 2000-2004 |
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* DENX Software Engineering |
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* Wolfgang Denk, [email protected] |
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* |
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* Updated-by: Prafulla Wadaskar <[email protected]> |
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* FIT image specific code abstracted from mkimage.c |
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* some functions added to address abstraction |
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* |
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* All rights reserved. |
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*/ |
|
|
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#include "imagetool.h" |
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#include "fit_common.h" |
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#include "mkimage.h" |
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#include <image.h> |
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#include <stdarg.h> |
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#include <version.h> |
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#include <u-boot/crc.h> |
|
|
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static image_header_t header; |
|
|
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static int fit_add_file_data(struct image_tool_params *params, size_t size_inc, |
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const char *tmpfile) |
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{ |
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int tfd, destfd = 0; |
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void *dest_blob = NULL; |
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off_t destfd_size = 0; |
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struct stat sbuf; |
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void *ptr; |
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int ret = 0; |
|
|
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tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true); |
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if (tfd < 0) |
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return -EIO; |
|
|
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if (params->keydest) { |
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struct stat dest_sbuf; |
|
|
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destfd = mmap_fdt(params->cmdname, params->keydest, size_inc, |
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&dest_blob, &dest_sbuf, false); |
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if (destfd < 0) { |
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ret = -EIO; |
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goto err_keydest; |
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} |
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destfd_size = dest_sbuf.st_size; |
|
} |
|
|
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/* for first image creation, add a timestamp at offset 0 i.e., root */ |
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if (params->datafile) { |
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time_t time = imagetool_get_source_date(params->cmdname, |
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sbuf.st_mtime); |
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ret = fit_set_timestamp(ptr, 0, time); |
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} |
|
|
|
if (!ret) { |
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ret = fit_add_verification_data(params->keydir, dest_blob, ptr, |
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params->comment, |
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params->require_keys, |
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params->engine_id, |
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params->cmdname); |
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} |
|
|
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if (dest_blob) { |
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munmap(dest_blob, destfd_size); |
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close(destfd); |
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} |
|
|
|
err_keydest: |
|
munmap(ptr, sbuf.st_size); |
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close(tfd); |
|
|
|
return ret; |
|
} |
|
|
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/** |
|
* fit_calc_size() - Calculate the approximate size of the FIT we will generate |
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*/ |
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static int fit_calc_size(struct image_tool_params *params) |
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{ |
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struct content_info *cont; |
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int size, total_size; |
|
|
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size = imagetool_get_filesize(params, params->datafile); |
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if (size < 0) |
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return -1; |
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total_size = size; |
|
|
|
if (params->fit_ramdisk) { |
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size = imagetool_get_filesize(params, params->fit_ramdisk); |
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if (size < 0) |
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return -1; |
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total_size += size; |
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} |
|
|
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for (cont = params->content_head; cont; cont = cont->next) { |
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size = imagetool_get_filesize(params, cont->fname); |
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if (size < 0) |
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return -1; |
|
|
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/* Add space for properties */ |
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total_size += size + 300; |
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} |
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|
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/* Add plenty of space for headers, properties, nodes, etc. */ |
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total_size += 4096; |
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|
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return total_size; |
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} |
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|
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static int fdt_property_file(struct image_tool_params *params, |
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void *fdt, const char *name, const char *fname) |
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{ |
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struct stat sbuf; |
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void *ptr; |
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int ret; |
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int fd; |
|
|
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fd = open(fname, O_RDWR | O_BINARY); |
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if (fd < 0) { |
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fprintf(stderr, "%s: Can't open %s: %s\n", |
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params->cmdname, fname, strerror(errno)); |
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return -1; |
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} |
|
|
|
if (fstat(fd, &sbuf) < 0) { |
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fprintf(stderr, "%s: Can't stat %s: %s\n", |
|
params->cmdname, fname, strerror(errno)); |
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goto err; |
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} |
|
|
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ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr); |
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if (ret) |
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goto err; |
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ret = read(fd, ptr, sbuf.st_size); |
|
if (ret != sbuf.st_size) { |
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fprintf(stderr, "%s: Can't read %s: %s\n", |
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params->cmdname, fname, strerror(errno)); |
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goto err; |
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} |
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close(fd); |
|
|
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return 0; |
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err: |
|
close(fd); |
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return -1; |
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} |
|
|
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static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...) |
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{ |
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char str[100]; |
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va_list ptr; |
|
|
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va_start(ptr, fmt); |
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vsnprintf(str, sizeof(str), fmt, ptr); |
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va_end(ptr); |
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return fdt_property_string(fdt, name, str); |
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} |
|
|
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static void get_basename(char *str, int size, const char *fname) |
|
{ |
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const char *p, *start, *end; |
|
int len; |
|
|
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/* |
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* Use the base name as the 'name' field. So for example: |
|
* |
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* "arch/arm/dts/sun7i-a20-bananapro.dtb" |
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* becomes "sun7i-a20-bananapro" |
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*/ |
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p = strrchr(fname, '/'); |
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start = p ? p + 1 : fname; |
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p = strrchr(fname, '.'); |
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end = p ? p : fname + strlen(fname); |
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len = end - start; |
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if (len >= size) |
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len = size - 1; |
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memcpy(str, start, len); |
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str[len] = '\0'; |
|
} |
|
|
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/** |
|
* fit_write_images() - Write out a list of images to the FIT |
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* |
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* We always include the main image (params->datafile). If there are device |
|
* tree files, we include an fdt- node for each of those too. |
|
*/ |
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static int fit_write_images(struct image_tool_params *params, char *fdt) |
|
{ |
|
struct content_info *cont; |
|
const char *typename; |
|
char str[100]; |
|
int upto; |
|
int ret; |
|
|
|
fdt_begin_node(fdt, "images"); |
|
|
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/* First the main image */ |
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typename = genimg_get_type_short_name(params->fit_image_type); |
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snprintf(str, sizeof(str), "%s-1", typename); |
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fdt_begin_node(fdt, str); |
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fdt_property_string(fdt, FIT_DESC_PROP, params->imagename); |
|
fdt_property_string(fdt, FIT_TYPE_PROP, typename); |
|
fdt_property_string(fdt, FIT_ARCH_PROP, |
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genimg_get_arch_short_name(params->arch)); |
|
fdt_property_string(fdt, FIT_OS_PROP, |
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genimg_get_os_short_name(params->os)); |
|
fdt_property_string(fdt, FIT_COMP_PROP, |
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genimg_get_comp_short_name(params->comp)); |
|
fdt_property_u32(fdt, FIT_LOAD_PROP, params->addr); |
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fdt_property_u32(fdt, FIT_ENTRY_PROP, params->ep); |
|
|
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/* |
|
* Put data last since it is large. SPL may only load the first part |
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* of the DT, so this way it can access all the above fields. |
|
*/ |
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP, params->datafile); |
|
if (ret) |
|
return ret; |
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fdt_end_node(fdt); |
|
|
|
/* Now the device tree files if available */ |
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upto = 0; |
|
for (cont = params->content_head; cont; cont = cont->next) { |
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if (cont->type != IH_TYPE_FLATDT) |
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continue; |
|
snprintf(str, sizeof(str), "%s-%d", FIT_FDT_PROP, ++upto); |
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fdt_begin_node(fdt, str); |
|
|
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get_basename(str, sizeof(str), cont->fname); |
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fdt_property_string(fdt, FIT_DESC_PROP, str); |
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP, |
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cont->fname); |
|
if (ret) |
|
return ret; |
|
fdt_property_string(fdt, FIT_TYPE_PROP, typename); |
|
fdt_property_string(fdt, FIT_ARCH_PROP, |
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genimg_get_arch_short_name(params->arch)); |
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fdt_property_string(fdt, FIT_COMP_PROP, |
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genimg_get_comp_short_name(IH_COMP_NONE)); |
|
fdt_end_node(fdt); |
|
} |
|
|
|
/* And a ramdisk file if available */ |
|
if (params->fit_ramdisk) { |
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fdt_begin_node(fdt, FIT_RAMDISK_PROP "-1"); |
|
|
|
fdt_property_string(fdt, FIT_TYPE_PROP, FIT_RAMDISK_PROP); |
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fdt_property_string(fdt, FIT_OS_PROP, |
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genimg_get_os_short_name(params->os)); |
|
|
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP, |
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params->fit_ramdisk); |
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if (ret) |
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return ret; |
|
|
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fdt_end_node(fdt); |
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} |
|
|
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fdt_end_node(fdt); |
|
|
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return 0; |
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} |
|
|
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/** |
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* fit_write_configs() - Write out a list of configurations to the FIT |
|
* |
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* If there are device tree files, we include a configuration for each, which |
|
* selects the main image (params->datafile) and its corresponding device |
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* tree file. |
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* |
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* Otherwise we just create a configuration with the main image in it. |
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*/ |
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static void fit_write_configs(struct image_tool_params *params, char *fdt) |
|
{ |
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struct content_info *cont; |
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const char *typename; |
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char str[100]; |
|
int upto; |
|
|
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fdt_begin_node(fdt, "configurations"); |
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fdt_property_string(fdt, FIT_DEFAULT_PROP, "conf-1"); |
|
|
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upto = 0; |
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for (cont = params->content_head; cont; cont = cont->next) { |
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if (cont->type != IH_TYPE_FLATDT) |
|
continue; |
|
typename = genimg_get_type_short_name(cont->type); |
|
snprintf(str, sizeof(str), "conf-%d", ++upto); |
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fdt_begin_node(fdt, str); |
|
|
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get_basename(str, sizeof(str), cont->fname); |
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fdt_property_string(fdt, FIT_DESC_PROP, str); |
|
|
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typename = genimg_get_type_short_name(params->fit_image_type); |
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snprintf(str, sizeof(str), "%s-1", typename); |
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fdt_property_string(fdt, typename, str); |
|
|
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if (params->fit_ramdisk) |
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fdt_property_string(fdt, FIT_RAMDISK_PROP, |
|
FIT_RAMDISK_PROP "-1"); |
|
|
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snprintf(str, sizeof(str), FIT_FDT_PROP "-%d", upto); |
|
fdt_property_string(fdt, FIT_FDT_PROP, str); |
|
fdt_end_node(fdt); |
|
} |
|
|
|
if (!upto) { |
|
fdt_begin_node(fdt, "conf-1"); |
|
typename = genimg_get_type_short_name(params->fit_image_type); |
|
snprintf(str, sizeof(str), "%s-1", typename); |
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fdt_property_string(fdt, typename, str); |
|
|
|
if (params->fit_ramdisk) |
|
fdt_property_string(fdt, FIT_RAMDISK_PROP, |
|
FIT_RAMDISK_PROP "-1"); |
|
|
|
fdt_end_node(fdt); |
|
} |
|
|
|
fdt_end_node(fdt); |
|
} |
|
|
|
static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size) |
|
{ |
|
int ret; |
|
|
|
ret = fdt_create(fdt, size); |
|
if (ret) |
|
return ret; |
|
fdt_finish_reservemap(fdt); |
|
fdt_begin_node(fdt, ""); |
|
fdt_property_strf(fdt, FIT_DESC_PROP, |
|
"%s image with one or more FDT blobs", |
|
genimg_get_type_name(params->fit_image_type)); |
|
fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION); |
|
fdt_property_u32(fdt, "#address-cells", 1); |
|
ret = fit_write_images(params, fdt); |
|
if (ret) |
|
return ret; |
|
fit_write_configs(params, fdt); |
|
fdt_end_node(fdt); |
|
ret = fdt_finish(fdt); |
|
if (ret) |
|
return ret; |
|
|
|
return fdt_totalsize(fdt); |
|
} |
|
|
|
static int fit_build(struct image_tool_params *params, const char *fname) |
|
{ |
|
char *buf; |
|
int size; |
|
int ret; |
|
int fd; |
|
|
|
size = fit_calc_size(params); |
|
if (size < 0) |
|
return -1; |
|
buf = malloc(size); |
|
if (!buf) { |
|
fprintf(stderr, "%s: Out of memory (%d bytes)\n", |
|
params->cmdname, size); |
|
return -1; |
|
} |
|
ret = fit_build_fdt(params, buf, size); |
|
if (ret < 0) { |
|
fprintf(stderr, "%s: Failed to build FIT image\n", |
|
params->cmdname); |
|
goto err_buf; |
|
} |
|
size = ret; |
|
fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666); |
|
if (fd < 0) { |
|
fprintf(stderr, "%s: Can't open %s: %s\n", |
|
params->cmdname, fname, strerror(errno)); |
|
goto err_buf; |
|
} |
|
ret = write(fd, buf, size); |
|
if (ret != size) { |
|
fprintf(stderr, "%s: Can't write %s: %s\n", |
|
params->cmdname, fname, strerror(errno)); |
|
goto err; |
|
} |
|
close(fd); |
|
free(buf); |
|
|
|
return 0; |
|
err: |
|
close(fd); |
|
err_buf: |
|
free(buf); |
|
return -1; |
|
} |
|
|
|
/** |
|
* fit_extract_data() - Move all data outside the FIT |
|
* |
|
* This takes a normal FIT file and removes all the 'data' properties from it. |
|
* The data is placed in an area after the FIT so that it can be accessed |
|
* using an offset into that area. The 'data' properties turn into |
|
* 'data-offset' properties. |
|
* |
|
* This function cannot cope with FITs with 'data-offset' properties. All |
|
* data must be in 'data' properties on entry. |
|
*/ |
|
static int fit_extract_data(struct image_tool_params *params, const char *fname) |
|
{ |
|
void *buf; |
|
int buf_ptr; |
|
int fit_size, new_size; |
|
int fd; |
|
struct stat sbuf; |
|
void *fdt; |
|
int ret; |
|
int images; |
|
int node; |
|
|
|
fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false); |
|
if (fd < 0) |
|
return -EIO; |
|
fit_size = fdt_totalsize(fdt); |
|
|
|
/* Allocate space to hold the image data we will extract */ |
|
buf = malloc(fit_size); |
|
if (!buf) { |
|
ret = -ENOMEM; |
|
goto err_munmap; |
|
} |
|
buf_ptr = 0; |
|
|
|
images = fdt_path_offset(fdt, FIT_IMAGES_PATH); |
|
if (images < 0) { |
|
debug("%s: Cannot find /images node: %d\n", __func__, images); |
|
ret = -EINVAL; |
|
goto err_munmap; |
|
} |
|
|
|
for (node = fdt_first_subnode(fdt, images); |
|
node >= 0; |
|
node = fdt_next_subnode(fdt, node)) { |
|
const char *data; |
|
int len; |
|
|
|
data = fdt_getprop(fdt, node, FIT_DATA_PROP, &len); |
|
if (!data) |
|
continue; |
|
memcpy(buf + buf_ptr, data, len); |
|
debug("Extracting data size %x\n", len); |
|
|
|
ret = fdt_delprop(fdt, node, FIT_DATA_PROP); |
|
if (ret) { |
|
ret = -EPERM; |
|
goto err_munmap; |
|
} |
|
if (params->external_offset > 0) { |
|
/* An external offset positions the data absolutely. */ |
|
fdt_setprop_u32(fdt, node, FIT_DATA_POSITION_PROP, |
|
params->external_offset + buf_ptr); |
|
} else { |
|
fdt_setprop_u32(fdt, node, FIT_DATA_OFFSET_PROP, |
|
buf_ptr); |
|
} |
|
fdt_setprop_u32(fdt, node, FIT_DATA_SIZE_PROP, len); |
|
|
|
buf_ptr += (len + 3) & ~3; |
|
} |
|
|
|
/* Pack the FDT and place the data after it */ |
|
fdt_pack(fdt); |
|
|
|
debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt)); |
|
debug("External data size %x\n", buf_ptr); |
|
new_size = fdt_totalsize(fdt); |
|
new_size = (new_size + 3) & ~3; |
|
munmap(fdt, sbuf.st_size); |
|
|
|
if (ftruncate(fd, new_size)) { |
|
debug("%s: Failed to truncate file: %s\n", __func__, |
|
strerror(errno)); |
|
ret = -EIO; |
|
goto err; |
|
} |
|
|
|
/* Check if an offset for the external data was set. */ |
|
if (params->external_offset > 0) { |
|
if (params->external_offset < new_size) { |
|
debug("External offset %x overlaps FIT length %x", |
|
params->external_offset, new_size); |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
new_size = params->external_offset; |
|
} |
|
if (lseek(fd, new_size, SEEK_SET) < 0) { |
|
debug("%s: Failed to seek to end of file: %s\n", __func__, |
|
strerror(errno)); |
|
ret = -EIO; |
|
goto err; |
|
} |
|
if (write(fd, buf, buf_ptr) != buf_ptr) { |
|
debug("%s: Failed to write external data to file %s\n", |
|
__func__, strerror(errno)); |
|
ret = -EIO; |
|
goto err; |
|
} |
|
free(buf); |
|
close(fd); |
|
return 0; |
|
|
|
err_munmap: |
|
munmap(fdt, sbuf.st_size); |
|
err: |
|
if (buf) |
|
free(buf); |
|
close(fd); |
|
return ret; |
|
} |
|
|
|
static int fit_import_data(struct image_tool_params *params, const char *fname) |
|
{ |
|
void *fdt, *old_fdt; |
|
int fit_size, new_size, size, data_base; |
|
int fd; |
|
struct stat sbuf; |
|
int ret; |
|
int images; |
|
int node; |
|
|
|
fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false); |
|
if (fd < 0) |
|
return -EIO; |
|
fit_size = fdt_totalsize(old_fdt); |
|
data_base = (fit_size + 3) & ~3; |
|
|
|
/* Allocate space to hold the new FIT */ |
|
size = sbuf.st_size + 16384; |
|
fdt = malloc(size); |
|
if (!fdt) { |
|
fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n", |
|
__func__, size); |
|
ret = -ENOMEM; |
|
goto err_has_fd; |
|
} |
|
ret = fdt_open_into(old_fdt, fdt, size); |
|
if (ret) { |
|
debug("%s: Failed to expand FIT: %s\n", __func__, |
|
fdt_strerror(errno)); |
|
ret = -EINVAL; |
|
goto err_has_fd; |
|
} |
|
|
|
images = fdt_path_offset(fdt, FIT_IMAGES_PATH); |
|
if (images < 0) { |
|
debug("%s: Cannot find /images node: %d\n", __func__, images); |
|
ret = -EINVAL; |
|
goto err_has_fd; |
|
} |
|
|
|
for (node = fdt_first_subnode(fdt, images); |
|
node >= 0; |
|
node = fdt_next_subnode(fdt, node)) { |
|
int buf_ptr; |
|
int len; |
|
|
|
buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1); |
|
len = fdtdec_get_int(fdt, node, "data-size", -1); |
|
if (buf_ptr == -1 || len == -1) |
|
continue; |
|
debug("Importing data size %x\n", len); |
|
|
|
ret = fdt_setprop(fdt, node, "data", fdt + data_base + buf_ptr, |
|
len); |
|
if (ret) { |
|
debug("%s: Failed to write property: %s\n", __func__, |
|
fdt_strerror(ret)); |
|
ret = -EINVAL; |
|
goto err_has_fd; |
|
} |
|
} |
|
|
|
/* Close the old fd so we can re-use it. */ |
|
close(fd); |
|
|
|
/* Pack the FDT and place the data after it */ |
|
fdt_pack(fdt); |
|
|
|
new_size = fdt_totalsize(fdt); |
|
debug("Size expanded from %x to %x\n", fit_size, new_size); |
|
|
|
fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666); |
|
if (fd < 0) { |
|
fprintf(stderr, "%s: Can't open %s: %s\n", |
|
params->cmdname, fname, strerror(errno)); |
|
ret = -EIO; |
|
goto err_no_fd; |
|
} |
|
if (write(fd, fdt, new_size) != new_size) { |
|
debug("%s: Failed to write external data to file %s\n", |
|
__func__, strerror(errno)); |
|
ret = -EIO; |
|
goto err_has_fd; |
|
} |
|
|
|
ret = 0; |
|
|
|
err_has_fd: |
|
close(fd); |
|
err_no_fd: |
|
munmap(old_fdt, sbuf.st_size); |
|
free(fdt); |
|
return ret; |
|
} |
|
|
|
/** |
|
* fit_handle_file - main FIT file processing function |
|
* |
|
* fit_handle_file() runs dtc to convert .its to .itb, includes |
|
* binary data, updates timestamp property and calculates hashes. |
|
* |
|
* datafile - .its file |
|
* imagefile - .itb file |
|
* |
|
* returns: |
|
* only on success, otherwise calls exit (EXIT_FAILURE); |
|
*/ |
|
static int fit_handle_file(struct image_tool_params *params) |
|
{ |
|
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN]; |
|
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN]; |
|
size_t size_inc; |
|
int ret; |
|
|
|
/* Flattened Image Tree (FIT) format handling */ |
|
debug ("FIT format handling\n"); |
|
|
|
/* call dtc to include binary properties into the tmp file */ |
|
if (strlen (params->imagefile) + |
|
strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) { |
|
fprintf (stderr, "%s: Image file name (%s) too long, " |
|
"can't create tmpfile", |
|
params->imagefile, params->cmdname); |
|
return (EXIT_FAILURE); |
|
} |
|
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX); |
|
|
|
/* We either compile the source file, or use the existing FIT image */ |
|
if (params->auto_its) { |
|
if (fit_build(params, tmpfile)) { |
|
fprintf(stderr, "%s: failed to build FIT\n", |
|
params->cmdname); |
|
return EXIT_FAILURE; |
|
} |
|
*cmd = '\0'; |
|
} else if (params->datafile) { |
|
/* dtc -I dts -O dtb -p 500 -o tmpfile datafile */ |
|
snprintf(cmd, sizeof(cmd), "%s %s -o \"%s\" \"%s\"", |
|
MKIMAGE_DTC, params->dtc, tmpfile, params->datafile); |
|
debug("Trying to execute \"%s\"\n", cmd); |
|
} else { |
|
snprintf(cmd, sizeof(cmd), "cp \"%s\" \"%s\"", |
|
params->imagefile, tmpfile); |
|
} |
|
if (*cmd && system(cmd) == -1) { |
|
fprintf (stderr, "%s: system(%s) failed: %s\n", |
|
params->cmdname, cmd, strerror(errno)); |
|
goto err_system; |
|
} |
|
|
|
/* Move the data so it is internal to the FIT, if needed */ |
|
ret = fit_import_data(params, tmpfile); |
|
if (ret) |
|
goto err_system; |
|
|
|
/* |
|
* Set hashes for images in the blob. Unfortunately we may need more |
|
* space in either FDT, so keep trying until we succeed. |
|
* |
|
* Note: this is pretty inefficient for signing, since we must |
|
* calculate the signature every time. It would be better to calculate |
|
* all the data and then store it in a separate step. However, this |
|
* would be considerably more complex to implement. Generally a few |
|
* steps of this loop is enough to sign with several keys. |
|
*/ |
|
for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) { |
|
ret = fit_add_file_data(params, size_inc, tmpfile); |
|
if (!ret || ret != -ENOSPC) |
|
break; |
|
} |
|
|
|
if (ret) { |
|
fprintf(stderr, "%s Can't add hashes to FIT blob: %d\n", |
|
params->cmdname, ret); |
|
goto err_system; |
|
} |
|
|
|
/* Move the data so it is external to the FIT, if requested */ |
|
if (params->external_data) { |
|
ret = fit_extract_data(params, tmpfile); |
|
if (ret) |
|
goto err_system; |
|
} |
|
|
|
if (rename (tmpfile, params->imagefile) == -1) { |
|
fprintf (stderr, "%s: Can't rename %s to %s: %s\n", |
|
params->cmdname, tmpfile, params->imagefile, |
|
strerror (errno)); |
|
unlink (tmpfile); |
|
unlink (params->imagefile); |
|
return EXIT_FAILURE; |
|
} |
|
return EXIT_SUCCESS; |
|
|
|
err_system: |
|
unlink(tmpfile); |
|
return -1; |
|
} |
|
|
|
/** |
|
* fit_image_extract - extract a FIT component image |
|
* @fit: pointer to the FIT format image header |
|
* @image_noffset: offset of the component image node |
|
* @file_name: name of the file to store the FIT sub-image |
|
* |
|
* returns: |
|
* zero in case of success or a negative value if fail. |
|
*/ |
|
static int fit_image_extract( |
|
const void *fit, |
|
int image_noffset, |
|
const char *file_name) |
|
{ |
|
const void *file_data; |
|
size_t file_size = 0; |
|
|
|
/* get the "data" property of component at offset "image_noffset" */ |
|
fit_image_get_data(fit, image_noffset, &file_data, &file_size); |
|
|
|
/* save the "file_data" into the file specified by "file_name" */ |
|
return imagetool_save_subimage(file_name, (ulong) file_data, file_size); |
|
} |
|
|
|
/** |
|
* fit_extract_contents - retrieve a sub-image component from the FIT image |
|
* @ptr: pointer to the FIT format image header |
|
* @params: command line parameters |
|
* |
|
* returns: |
|
* zero in case of success or a negative value if fail. |
|
*/ |
|
static int fit_extract_contents(void *ptr, struct image_tool_params *params) |
|
{ |
|
int images_noffset; |
|
int noffset; |
|
int ndepth; |
|
const void *fit = ptr; |
|
int count = 0; |
|
const char *p; |
|
|
|
/* Indent string is defined in header image.h */ |
|
p = IMAGE_INDENT_STRING; |
|
|
|
if (!fit_check_format(fit)) { |
|
printf("Bad FIT image format\n"); |
|
return -1; |
|
} |
|
|
|
/* Find images parent node offset */ |
|
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); |
|
if (images_noffset < 0) { |
|
printf("Can't find images parent node '%s' (%s)\n", |
|
FIT_IMAGES_PATH, fdt_strerror(images_noffset)); |
|
return -1; |
|
} |
|
|
|
/* Avoid any overrun */ |
|
count = fit_get_subimage_count(fit, images_noffset); |
|
if ((params->pflag < 0) || (count <= params->pflag)) { |
|
printf("No such component at '%d'\n", params->pflag); |
|
return -1; |
|
} |
|
|
|
/* Process its subnodes, extract the desired component from image */ |
|
for (ndepth = 0, count = 0, |
|
noffset = fdt_next_node(fit, images_noffset, &ndepth); |
|
(noffset >= 0) && (ndepth > 0); |
|
noffset = fdt_next_node(fit, noffset, &ndepth)) { |
|
if (ndepth == 1) { |
|
/* |
|
* Direct child node of the images parent node, |
|
* i.e. component image node. |
|
*/ |
|
if (params->pflag == count) { |
|
printf("Extracted:\n%s Image %u (%s)\n", p, |
|
count, fit_get_name(fit, noffset, NULL)); |
|
|
|
fit_image_print(fit, noffset, p); |
|
|
|
return fit_image_extract(fit, noffset, |
|
params->outfile); |
|
} |
|
|
|
count++; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fit_check_params(struct image_tool_params *params) |
|
{ |
|
if (params->auto_its) |
|
return 0; |
|
return ((params->dflag && (params->fflag || params->lflag)) || |
|
(params->fflag && (params->dflag || params->lflag)) || |
|
(params->lflag && (params->dflag || params->fflag))); |
|
} |
|
|
|
U_BOOT_IMAGE_TYPE( |
|
fitimage, |
|
"FIT Image support", |
|
sizeof(image_header_t), |
|
(void *)&header, |
|
fit_check_params, |
|
fit_verify_header, |
|
fit_print_contents, |
|
NULL, |
|
fit_extract_contents, |
|
fit_check_image_types, |
|
fit_handle_file, |
|
NULL /* FIT images use DTB header */ |
|
);
|
|
|