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boot: Add support of the pre-load signature for host tools

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Signed-off-by: Paul HENRYS <paul.henrys_ext@softathome.com>
This commit is contained in:
Paul HENRYS 2025-02-24 22:20:52 +01:00 • committed by Tom Rini
parent 47f9186a3e
commit 3d17af85a4
1 changed files with 55 additions and 2 deletions

57
boot/image-pre-load.c
View file

@ -3,13 +3,24 @@
* Copyright (C) 2021 Philippe Reynes <philippe.reynes@softathome.com>
*/
#ifdef USE_HOSTCC
#include "mkimage.h"
#else
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
#include <image.h>
#include <mapmem.h>
DECLARE_GLOBAL_DATA_PTR;
#endif /* !USE_HOSTCC*/
#include <image.h>
#include <u-boot/sha256.h>
#ifdef USE_HOSTCC
/* Define compat stuff for use in tools. */
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
#endif
/*
* Offset of the image
*
@ -17,6 +28,47 @@ DECLARE_GLOBAL_DATA_PTR;
*/
ulong image_load_offset;
#ifdef USE_HOSTCC
/* Host tools use these implementations to setup information related to the
* pre-load signatures
*/
static struct image_sig_info *host_info;
#define log_info(fmt, args...) printf(fmt, ##args)
#define log_err(fmt, args...) printf(fmt, ##args)
void image_pre_load_sig_set_info(struct image_sig_info *info)
{
host_info = info;
}
/*
* This function sets a pointer to information for the signature check.
* It expects that host_info has been initially provision by the host
* application.
*
* return:
* < 0 => an error has occurred
* 0 => OK
*/
static int image_pre_load_sig_setup(struct image_sig_info *info)
{
if (!info) {
log_err("ERROR: info is NULL\n");
return -EINVAL;
}
if (!host_info) {
log_err("ERROR: host_info is NULL\n");
log_err("ERROR: Set it with image_pre_load_sig_set_info()\n");
return -EINVAL;
}
memcpy(info, host_info, sizeof(struct image_sig_info));
return 0;
}
#else
/*
* This function gathers information about the signature check
* that could be done before launching the image.
@ -106,6 +158,7 @@ static int image_pre_load_sig_setup(struct image_sig_info *info)
out:
return ret;
}
#endif /* !USE_HOSTCC */
static int image_pre_load_sig_get_magic(ulong addr, u32 *magic)
{