// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013, Google Inc.
*
* (C) Copyright 2008 Semihalf
*
* (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#ifdef USE_HOSTCC
#include "mkimage.h"
#include <time.h>
#else
#include <linux/compiler.h>
#include <linux/kconfig.h>
#include <common.h>
#include <errno.h>
#include <mapmem.h>
#include <asm/io.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
#endif /* !USE_HOSTCC*/
#include <image.h>
#include <bootstage.h>
#include <u-boot/crc.h>
#include <u-boot/md5.h>
#include <u-boot/sha1.h>
#include <u-boot/sha256.h>
/*****************************************************************************/
/* New uImage format routines */
/*****************************************************************************/
#ifndef USE_HOSTCC
static int fit_parse_spec(const char *spec, char sepc, ulong addr_curr,
ulong *addr, const char **name)
{
const char *sep;
*addr = addr_curr;
*name = NULL;
sep = strchr(spec, sepc);
if (sep) {
if (sep - spec > 0)
*addr = simple_strtoul(spec, NULL, 16);
*name = sep + 1;
return 1;
}
return 0;
}
/**
* fit_parse_conf - parse FIT configuration spec
* @spec: input string, containing configuration spec
* @add_curr: current image address (to be used as a possible default)
* @addr: pointer to a ulong variable, will hold FIT image address of a given
* configuration
* @conf_name double pointer to a char, will hold pointer to a configuration
* unit name
*
* fit_parse_conf() expects configuration spec in the form of [<addr>]#<conf>,
* where <addr> is a FIT image address that contains configuration
* with a <conf> unit name.
*
* Address part is optional, and if omitted default add_curr will
* be used instead.
*
* returns:
* 1 if spec is a valid configuration string,
* addr and conf_name are set accordingly
* 0 otherwise
*/
int fit_parse_conf(const char *spec, ulong addr_curr,
ulong *addr, const char **conf_name)
{
return fit_parse_spec(spec, '#', addr_curr, addr, conf_name);
}
/**
* fit_parse_subimage - parse FIT subimage spec
* @spec: input string, containing subimage spec
* @add_curr: current image address (to be used as a possible default)
* @addr: pointer to a ulong variable, will hold FIT image address of a given
* subimage
* @image_name: double pointer to a char, will hold pointer to a subimage name
*
* fit_parse_subimage() expects subimage spec in the form of
* [<addr>]:<subimage>, where <addr> is a FIT image address that contains
* subimage with a <subimg> unit name.
*
* Address part is optional, and if omitted default add_curr will
* be used instead.
*
* returns:
* 1 if spec is a valid subimage string,
* addr and image_name are set accordingly
* 0 otherwise
*/
int fit_parse_subimage(const char *spec, ulong addr_curr,
ulong *addr, const char **image_name)
{
return fit_parse_spec(spec, ':', addr_curr, addr, image_name);
}
#endif /* !USE_HOSTCC */
static void fit_get_debug(const void *fit, int noffset,
char *prop_name, int err)
{
debug("Can't get '%s' property from FIT 0x%08lx, node: offset %d, name %s (%s)\n",
prop_name, (ulong)fit, noffset, fit_get_name(fit, noffset, NULL),
fdt_strerror(err));
}
/**
* fit_get_subimage_count - get component (sub-image) count
* @fit: pointer to the FIT format image header
* @images_noffset: offset of images node
*
* returns:
* number of image components
*/
int fit_get_subimage_count(const void *fit, int images_noffset)
{
int noffset;
int ndepth;
int count = 0;
/* Process its subnodes, print out component images details */
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) {
count++;
}
}
return count;
}
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_FIT_PRINT)
/**
* fit_image_print_data() - prints out the hash node details
* @fit: pointer to the FIT format image header
* @noffset: offset of the hash node
* @p: pointer to prefix string
* @type: Type of information to print ("hash" or "sign")
*
* fit_image_print_data() lists properties for the processed hash node
*
* This function avoid using puts() since it prints a newline on the host
* but does not in U-Boot.
*
* returns:
* no returned results
*/
static void fit_image_print_data(const void *fit, int noffset, const char *p,
const char *type)
{
const char *keyname;
uint8_t *value;
int value_len;
char *algo;
int required;
int ret, i;
debug("%s %s node: '%s'\n", p, type,
fit_get_name(fit, noffset, NULL));
printf("%s %s algo: ", p, type);
if (fit_image_hash_get_algo(fit, noffset, &algo)) {
printf("invalid/unsupported\n");
return;
}
printf("%s", algo);
keyname = fdt_getprop(fit, noffset, "key-name-hint", NULL);
required = fdt_getprop(fit, noffset, "required", NULL) != NULL;
if (keyname)
printf(":%s", keyname);
if (required)
printf(" (required)");
printf("\n");
ret = fit_image_hash_get_value(fit, noffset, &value,
&value_len);
printf("%s %s value: ", p, type);
if (ret) {
printf("unavailable\n");
} else {
for (i = 0; i < value_len; i++)
printf("%02x", value[i]);
printf("\n");
}
debug("%s %s len: %d\n", p, type, value_len);
/* Signatures have a time stamp */
if (IMAGE_ENABLE_TIMESTAMP && keyname) {
time_t timestamp;
printf("%s Timestamp: ", p);
if (fit_get_timestamp(fit, noffset, ×tamp))
printf("unavailable\n");
else
genimg_print_time(timestamp);
}
}
/**
* fit_image_print_verification_data() - prints out the hash/signature details
* @fit: pointer to the FIT format image header
* @noffset: offset of the hash or signature node
* @p: pointer to prefix string
*
* This lists properties for the processed hash node
*
* returns:
* no returned results
*/
static void fit_image_print_verification_data(const void *fit, int noffset,
const char *p)
{
const char *name;
/*
* Check subnode name, must be equal to "hash" or "signature".
* Multiple hash/signature nodes require unique unit node
* names, e.g. hash-1, hash-2, signature-1, signature-2, etc.
*/
name = fit_get_name(fit, noffset, NULL);
if (!strncmp(name, FIT_HASH_NODENAME, strlen(FIT_HASH_NODENAME))) {
fit_image_print_data(fit, noffset, p, "Hash");
} else if (!strncmp(name, FIT_SIG_NODENAME,
strlen(FIT_SIG_NODENAME))) {
fit_image_print_data(fit, noffset, p, "Sign");
}
}
/**
* fit_conf_print - prints out the FIT configuration details
* @fit: pointer to the FIT format image header
* @noffset: offset of the configuration node
* @p: pointer to prefix string
*
* fit_conf_print() lists all mandatory properties for the processed
* configuration node.
*
* returns:
* no returned results
*/
static void fit_conf_print(const void *fit, int noffset, const char *p)
{
char *desc;
const char *uname;
int ret;
int fdt_index, loadables_index;
int ndepth;
/* Mandatory properties */
ret = fit_get_desc(fit, noffset, &desc);
printf("%s Description: ", p);
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
uname = fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL);
printf("%s Kernel: ", p);
if (!uname)
printf("unavailable\n");
else
printf("%s\n", uname);
/* Optional properties */
uname = fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL);
if (uname)
printf("%s Init Ramdisk: %s\n", p, uname);
uname = fdt_getprop(fit, noffset, FIT_FIRMWARE_PROP, NULL);
if (uname)
printf("%s Firmware: %s\n", p, uname);
for (fdt_index = 0;
uname = fdt_stringlist_get(fit, noffset, FIT_FDT_PROP,
fdt_index, NULL), uname;
fdt_index++) {
if (fdt_index == 0)
printf("%s FDT: ", p);
else
printf("%s ", p);
printf("%s\n", uname);
}
uname = fdt_getprop(fit, noffset, FIT_FPGA_PROP, NULL);
if (uname)
printf("%s FPGA: %s\n", p, uname);
/* Print out all of the specified loadables */
for (loadables_index = 0;
uname = fdt_stringlist_get(fit, noffset, FIT_LOADABLE_PROP,
loadables_index, NULL), uname;
loadables_index++) {
if (loadables_index == 0) {
printf("%s Loadables: ", p);
} else {
printf("%s ", p);
}
printf("%s\n", uname);
}
/* Process all hash subnodes of the component configuration node */
for (ndepth = 0, noffset = fdt_next_node(fit, noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
if (ndepth == 1) {
/* Direct child node of the component configuration node */
fit_image_print_verification_data(fit, noffset, p);
}
}
}
/**
* fit_print_contents - prints out the contents of the FIT format image
* @fit: pointer to the FIT format image header
* @p: pointer to prefix string
*
* fit_print_contents() formats a multi line FIT image contents description.
* The routine prints out FIT image properties (root node level) followed by
* the details of each component image.
*
* returns:
* no returned results
*/
void fit_print_contents(const void *fit)
{
char *desc;
char *uname;
int images_noffset;
int confs_noffset;
int noffset;
int ndepth;
int count = 0;
int ret;
const char *p;
time_t timestamp;
/* Indent string is defined in header image.h */
p = IMAGE_INDENT_STRING;
/* Root node properties */
ret = fit_get_desc(fit, 0, &desc);
printf("%sFIT description: ", p);
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
if (IMAGE_ENABLE_TIMESTAMP) {
ret = fit_get_timestamp(fit, 0, ×tamp);
printf("%sCreated: ", p);
if (ret)
printf("unavailable\n");
else
genimg_print_time(timestamp);
}
/* 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;
}
/* Process its subnodes, print out component images details */
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.
*/
printf("%s Image %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_image_print(fit, noffset, p);
}
}
/* Find configurations parent node offset */
confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
if (confs_noffset < 0) {
debug("Can't get configurations parent node '%s' (%s)\n",
FIT_CONFS_PATH, fdt_strerror(confs_noffset));
return;
}
/* get default configuration unit name from default property */
uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL);
if (uname)
printf("%s Default Configuration: '%s'\n", p, uname);
/* Process its subnodes, print out configurations details */
for (ndepth = 0, count = 0,
noffset = fdt_next_node(fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the configurations parent node,
* i.e. configuration node.
*/
printf("%s Configuration %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_conf_print(fit, noffset, p);
}
}
}
/**
* fit_image_print - prints out the FIT component image details
* @fit: pointer to the FIT format image header
* @image_noffset: offset of the component image node
* @p: pointer to prefix string
*
* fit_image_print() lists all mandatory properties for the processed component
* image. If present, hash nodes are printed out as well. Load
* address for images of type firmware is also printed out. Since the load
* address is not mandatory for firmware images, it will be output as
* "unavailable" when not present.
*
* returns:
* no returned results
*/
void fit_image_print(const void *fit, int image_noffset, const char *p)
{
char *desc;
uint8_t type, arch, os, comp;
size_t size;
ulong load, entry;
const void *data;
int noffset;
int ndepth;
int ret;
/* Mandatory properties */
ret = fit_get_desc(fit, image_noffset, &desc);
printf("%s Description: ", p);
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
if (IMAGE_ENABLE_TIMESTAMP) {
time_t timestamp;
ret = fit_get_timestamp(fit, 0, ×tamp);
printf("%s Created: ", p);
if (ret)
printf("unavailable\n");
else
genimg_print_time(timestamp);
}
fit_image_get_type(fit, image_noffset, &type);
printf("%s Type: %s\n", p, genimg_get_type_name(type));
fit_image_get_comp(fit, image_noffset, &comp);
printf("%s Compression: %s\n", p, genimg_get_comp_name(comp));
ret = fit_image_get_data_and_size(fit, image_noffset, &data, &size);
#ifndef USE_HOSTCC
printf("%s Data Start: ", p);
if (ret) {
printf("unavailable\n");
} else {
void *vdata = (void *)data;
printf("0x%08lx\n", (ulong)map_to_sysmem(vdata));
}
#endif
printf("%s Data Size: ", p);
if (ret)
printf("unavailable\n");
else
genimg_print_size(size);
/* Remaining, type dependent properties */
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
(type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
(type == IH_TYPE_FLATDT)) {
fit_image_get_arch(fit, image_noffset, &arch);
printf("%s Architecture: %s\n", p, genimg_get_arch_name(arch));
}
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_RAMDISK) ||
(type == IH_TYPE_FIRMWARE)) {
fit_image_get_os(fit, image_noffset, &os);
printf("%s OS: %s\n", p, genimg_get_os_name(os));
}
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
(type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK) ||
(type == IH_TYPE_FPGA)) {
ret = fit_image_get_load(fit, image_noffset, &load);
printf("%s Load Address: ", p);
if (ret)
printf("unavailable\n");
else
printf("0x%08lx\n", load);
}
/* optional load address for FDT */
if (type == IH_TYPE_FLATDT && !fit_image_get_load(fit, image_noffset, &load))
printf("%s Load Address: 0x%08lx\n", p, load);
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
(type == IH_TYPE_RAMDISK)) {
ret = fit_image_get_entry(fit, image_noffset, &entry);
printf("%s Entry Point: ", p);
if (ret)
printf("unavailable\n");
else
printf("0x%08lx\n", entry);
}
/* Process all hash subnodes of the component image node */
for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
if (ndepth == 1) {
/* Direct child node of the component image node */
fit_image_print_verification_data(fit, noffset, p);
}
}
}
#else
void fit_print_contents(const void *fit) { }
void fit_image_print(const void *fit, int image_noffset, const char *p) { }
#endif /* !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_FIT_PRINT) */
/**
* fit_get_desc - get node description property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @desc: double pointer to the char, will hold pointer to the description
*
* fit_get_desc() reads description property from a given node, if
* description is found pointer to it is returned in third call argument.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_get_desc(const void *fit, int noffset, char **desc)
{
int len;
*desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len);
if (*desc == NULL) {
fit_get_debug(fit, noffset, FIT_DESC_PROP, len);
return -1;
}
return 0;
}
/**
* fit_get_timestamp - get node timestamp property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @timestamp: pointer to the time_t, will hold read timestamp
*
* fit_get_timestamp() reads timestamp property from given node, if timestamp
* is found and has a correct size its value is returned in third call
* argument.
*
* returns:
* 0, on success
* -1, on property read failure
* -2, on wrong timestamp size
*/
int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp)
{
int len;
const void *data;
data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len);
if (data == NULL) {
fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len);
return -1;
}
if (len != sizeof(uint32_t)) {
debug("FIT timestamp with incorrect size of (%u)\n", len);
return -2;
}
*timestamp = uimage_to_cpu(*((uint32_t *)data));
return 0;
}
/**
* fit_image_get_node - get node offset for component image of a given unit name
* @fit: pointer to the FIT format image header
* @image_uname: component image node unit name
*
* fit_image_get_node() finds a component image (within the '/images'
* node) of a provided unit name. If image is found its node offset is
* returned to the caller.
*
* returns:
* image node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_image_get_node(const void *fit, const char *image_uname)
{
int noffset, images_noffset;
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (images_noffset < 0) {
debug("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror(images_noffset));
return images_noffset;
}
noffset = fdt_subnode_offset(fit, images_noffset, image_uname);
if (noffset < 0) {
debug("Can't get node offset for image unit name: '%s' (%s)\n",
image_uname, fdt_strerror(noffset));
}
return noffset;
}
/**
* fit_image_get_os - get os id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @os: pointer to the uint8_t, will hold os numeric id
*
* fit_image_get_os() finds os property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_os(const void *fit, int noffset, uint8_t *os)
{
int len;
const void *data;
/* Get OS name from property data */
data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len);
if (data == NULL) {
fit_get_debug(fit, noffset, FIT_OS_PROP, len);
*os = -1;
return -1;
}
/* Translate OS name to id */
*os = genimg_get_os_id(data);
return 0;
}
/**
* fit_image_get_arch - get arch id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @arch: pointer to the uint8_t, will hold arch numeric id
*
* fit_image_get_arch() finds arch property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch)
{
int len;
const void *data;
/* Get architecture name from property data */
data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len);
if (data == NULL) {
fit_get_debug(fit, noffset, FIT_ARCH_PROP, len);
*arch = -1;
return -1;
}
/* Translate architecture name to id */
*arch = genimg_get_arch_id(data);
return 0;
}
/**
* fit_image_get_type - get type id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @type: pointer to the uint8_t, will hold type numeric id
*
* fit_image_get_type() finds type property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_type(const void *fit, int noffset, uint8_t *type)
{
int len;
const void *data;
/* Get image type name from property data */
data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len);
if (data == NULL) {
fit_get_debug(fit, noffset, FIT_TYPE_PROP, len);
*type = -1;
return -1;
}
/* Translate image type name to id */
*type = genimg_get_type_id(data);
return 0;
}
/**
* fit_image_get_comp - get comp id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @comp: pointer to the uint8_t, will hold comp numeric id
*
* fit_image_get_comp() finds comp property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp)
{
int len;
const void *data;
/* Get compression name from property data */
data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len);
if (data == NULL) {
fit_get_debug(fit, noffset, FIT_COMP_PROP, len);
*comp = -1;
return -1;
}
/* Translate compression name to id */
*comp = genimg_get_comp_id(data);
return 0;
}
static int fit_image_get_address(const void *fit, int noffset, char *name,
ulong *load)
{
int len, cell_len;
const fdt32_t *cell;
uint64_t load64 = 0;
cell = fdt_getprop(fit, noffset, name, &len);
if (cell == NULL) {
fit_get_debug(fit, noffset, name, len);
return -1;
}
if (len > sizeof(ulong)) {
printf("Unsupported %s address size\n", name);
return -1;
}
cell_len = len >> 2;
/* Use load64 to avoid compiling warning for 32-bit target */
while (cell_len--) {
load64 = (load64 << 32) | uimage_to_cpu(*cell);
cell++;
}
*load = (ulong)load64;
return 0;
}
/**
* fit_image_get_load() - get load addr property for given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @load: pointer to the uint32_t, will hold load address
*
* fit_image_get_load() finds load address property in a given component
* image node. If the property is found, its value is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_load(const void *fit, int noffset, ulong *load)
{
return fit_image_get_address(fit, noffset, FIT_LOAD_PROP, load);
}
/**
* fit_image_get_entry() - get entry point address property
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @entry: pointer to the uint32_t, will hold entry point address
*
* This gets the entry point address property for a given component image
* node.
*
* fit_image_get_entry() finds entry point address property in a given
* component image node. If the property is found, its value is returned
* to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_entry(const void *fit, int noffset, ulong *entry)
{
return fit_image_get_address(fit, noffset, FIT_ENTRY_PROP, entry);
}
/**
* fit_image_get_data - get data property and its size for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @data: double pointer to void, will hold data property's data address
* @size: pointer to size_t, will hold data property's data size
*
* fit_image_get_data() finds data property in a given component image node.
* If the property is found its data start address and size are returned to
* the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_data(const void *fit, int noffset,
const void **data, size_t *size)
{
int len;
*data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len);
if (*data == NULL) {
fit_get_debug(fit, noffset, FIT_DATA_PROP, len);
*size = 0;
return -1;
}
*size = len;
return 0;
}
/**
* Get 'data-offset' property from a given image node.
*
* @fit: pointer to the FIT image header
* @noffset: component image node offset
* @data_offset: holds the data-offset property
*
* returns:
* 0, on success
* -ENOENT if the property could not be found
*/
int fit_image_get_data_offset(const void *fit, int noffset, int *data_offset)
{
const fdt32_t *val;
val = fdt_getprop(fit, noffset, FIT_DATA_OFFSET_PROP, NULL);
if (!val)
return -ENOENT;
*data_offset = fdt32_to_cpu(*val);
return 0;
}
/**
* Get 'data-position' property from a given image node.
*
* @fit: pointer to the FIT image header
* @noffset: component image node offset
* @data_position: holds the data-position property
*
* returns:
* 0, on success
* -ENOENT if the property could not be found
*/
int fit_image_get_data_position(const void *fit, int noffset,
int *data_position)
{
const fdt32_t *val;
val = fdt_getprop(fit, noffset, FIT_DATA_POSITION_PROP, NULL);
if (!val)
return -ENOENT;
*data_position = fdt32_to_cpu(*val);
return 0;
}
/**
* Get 'data-size' property from a given image node.
*
* @fit: pointer to the FIT image header
* @noffset: component image node offset
* @data_size: holds the data-size property
*
* returns:
* 0, on success
* -ENOENT if the property could not be found
*/
int fit_image_get_data_size(const void *fit, int noffset, int *data_size)
{
const fdt32_t *val;
val = fdt_getprop(fit, noffset, FIT_DATA_SIZE_PROP, NULL);
if (!val)
return -ENOENT;
*data_size = fdt32_to_cpu(*val);
return 0;
}
/**
* fit_image_get_data_and_size - get data and its size including
* both embedded and external data
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @data: double pointer to void, will hold data property's data address
* @size: pointer to size_t, will hold data property's data size
*
* fit_image_get_data_and_size() finds data and its size including
* both embedded and external data. If the property is found
* its data start address and size are returned to the caller.
*
* returns:
* 0, on success
* otherwise, on failure
*/
int fit_image_get_data_and_size(const void *fit, int noffset,
const void **data, size_t *size)
{
bool external_data = false;
int offset;
int len;
int ret;
if (!fit_image_get_data_position(fit, noffset, &offset)) {
external_data = true;
} else if (!fit_image_get_data_offset(fit, noffset, &offset)) {
external_data = true;
/*
* For FIT with external data, figure out where
* the external images start. This is the base
* for the data-offset properties in each image.
*/
offset += ((fdt_totalsize(fit) + 3) & ~3);
}
if (external_data) {
debug("External Data\n");
ret = fit_image_get_data_size(fit, noffset, &len);
*data = fit + offset;
*size = len;
} else {
ret = fit_image_get_data(fit, noffset, data, size);
}
return ret;
}
/**
* fit_image_hash_get_algo - get hash algorithm name
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @algo: double pointer to char, will hold pointer to the algorithm name
*
* fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
* If the property is found its data start address is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_hash_get_algo(const void *fit, int noffset, char **algo)
{
int len;
*algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len);
if (*algo == NULL) {
fit_get_debug(fit, noffset, FIT_ALGO_PROP, len);
return -1;
}
return 0;
}
/**
* fit_image_hash_get_value - get hash value and length
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @value: double pointer to uint8_t, will hold address of a hash value data
* @value_len: pointer to an int, will hold hash data length
*
* fit_image_hash_get_value() finds hash value property in a given hash node.
* If the property is found its data start address and size are returned to
* the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
int *value_len)
{
int len;
*value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len);
if (*value == NULL) {
fit_get_debug(fit, noffset, FIT_VALUE_PROP, len);
*value_len = 0;
return -1;
}
*value_len = len;
return 0;
}
/**
* fit_image_hash_get_ignore - get hash ignore flag
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @ignore: pointer to an int, will hold hash ignore flag
*
* fit_image_hash_get_ignore() finds hash ignore property in a given hash node.
* If the property is found and non-zero, the hash algorithm is not verified by
* u-boot automatically.
*
* returns:
* 0, on ignore not found
* value, on ignore found
*/
static int fit_image_hash_get_ignore(const void *fit, int noffset, int *ignore)
{
int len;
int *value;
value = (int *)fdt_getprop(fit, noffset, FIT_IGNORE_PROP, &len);
if (value == NULL || len != sizeof(int))
*ignore = 0;
else
*ignore = *value;
return 0;
}
ulong fit_get_end(const void *fit)
{
return map_to_sysmem((void *)(fit + fdt_totalsize(fit)));
}
/**
* fit_set_timestamp - set node timestamp property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @timestamp: timestamp value to be set
*
* fit_set_timestamp() attempts to set timestamp property in the requested
* node and returns operation status to the caller.
*
* returns:
* 0, on success
* -ENOSPC if no space in device tree, -1 for other error
*/
int fit_set_timestamp(void *fit, int noffset, time_t timestamp)
{
uint32_t t;
int ret;
t = cpu_to_uimage(timestamp);
ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t,
sizeof(uint32_t));
if (ret) {
debug("Can't set '%s' property for '%s' node (%s)\n",
FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL),
fdt_strerror(ret));
return ret == -FDT_ERR_NOSPACE ? -ENOSPC : -1;
}
return 0;
}
/**
* calculate_hash - calculate and return hash for provided input data
* @data: pointer to the input data
* @data_len: data length
* @algo: requested hash algorithm
* @value: pointer to the char, will hold hash value data (caller must
* allocate enough free space)
* value_len: length of the calculated hash
*
* calculate_hash() computes input data hash according to the requested
* algorithm.
* Resulting hash value is placed in caller provided 'value' buffer, length
* of the calculated hash is returned via value_len pointer argument.
*
* returns:
* 0, on success
* -1, when algo is unsupported
*/
int calculate_hash(const void *data, int data_len, const char *algo,
uint8_t *value, int *value_len)
{
if (IMAGE_ENABLE_CRC32 && strcmp(algo, "crc32") == 0) {
*((uint32_t *)value) = crc32_wd(0, data, data_len,
CHUNKSZ_CRC32);
*((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value));
*value_len = 4;
} else if (IMAGE_ENABLE_SHA1 && strcmp(algo, "sha1") == 0) {
sha1_csum_wd((unsigned char *)data, data_len,
(unsigned char *)value, CHUNKSZ_SHA1);
*value_len = 20;
} else if (IMAGE_ENABLE_SHA256 && strcmp(algo, "sha256") == 0) {
sha256_csum_wd((unsigned char *)data, data_len,
(unsigned char *)value, CHUNKSZ_SHA256);
*value_len = SHA256_SUM_LEN;
} else if (IMAGE_ENABLE_MD5 && strcmp(algo, "md5") == 0) {
md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5);
*value_len = 16;
} else {
debug("Unsupported hash alogrithm\n");
return -1;
}
return 0;
}
static int fit_image_check_hash(const void *fit, int noffset, const void *data,
size_t size, char **err_msgp)
{
uint8_t value[FIT_MAX_HASH_LEN];
int value_len;
char *algo;
uint8_t *fit_value;
int fit_value_len;
int ignore;
*err_msgp = NULL;
if (fit_image_hash_get_algo(fit, noffset, &algo)) {
*err_msgp = "Can't get hash algo property";
return -1;
}
printf("%s", algo);
if (IMAGE_ENABLE_IGNORE) {
fit_image_hash_get_ignore(fit, noffset, &ignore);
if (ignore) {
printf("-skipped ");
return 0;
}
}
if (fit_image_hash_get_value(fit, noffset, &fit_value,
&fit_value_len)) {
*err_msgp = "Can't get hash value property";
return -1;
}
if (calculate_hash(data, size, algo, value, &value_len)) {
*err_msgp = "Unsupported hash algorithm";
return -1;
}
if (value_len != fit_value_len) {
*err_msgp = "Bad hash value len";
return -1;
} else if (memcmp(value, fit_value, value_len) != 0) {
*err_msgp = "Bad hash value";
return -1;
}
return 0;
}
int fit_image_verify_with_data(const void *fit, int image_noffset,
const void *data, size_t size)
{
int noffset = 0;
char *err_msg = "";
int verify_all = 1;
int ret;
/* Verify all required signatures */
if (IMAGE_ENABLE_VERIFY &&
fit_image_verify_required_sigs(fit, image_noffset, data, size,
gd_fdt_blob(), &verify_all)) {
err_msg = "Unable to verify required signature";
goto error;
}
/* Process all hash subnodes of the component image node */
fdt_for_each_subnode(noffset, fit, image_noffset) {
const char *name = fit_get_name(fit, noffset, NULL);
/*
* Check subnode name, must be equal to "hash".
* Multiple hash nodes require unique unit node
* names, e.g. hash-1, hash-2, etc.
*/
if (!strncmp(name, FIT_HASH_NODENAME,
strlen(FIT_HASH_NODENAME))) {
if (fit_image_check_hash(fit, noffset, data, size,
&err_msg))
goto error;
puts("+ ");
} else if (IMAGE_ENABLE_VERIFY && verify_all &&
!strncmp(name, FIT_SIG_NODENAME,
strlen(FIT_SIG_NODENAME))) {
ret = fit_image_check_sig(fit, noffset, data,
size, -1, &err_msg);
/*
* Show an indication on failure, but do not return
* an error. Only keys marked 'required' can cause
* an image validation failure. See the call to
* fit_image_verify_required_sigs() above.
*/
if (ret)
puts("- ");
else
puts("+ ");
}
}
if (noffset == -FDT_ERR_TRUNCATED || noffset == -FDT_ERR_BADSTRUCTURE) {
err_msg = "Corrupted or truncated tree";
goto error;
}
return 1;
error:
printf(" error!\n%s for '%s' hash node in '%s' image node\n",
err_msg, fit_get_name(fit, noffset, NULL),
fit_get_name(fit, image_noffset, NULL));
return 0;
}
/**
* fit_image_verify - verify data integrity
* @fit: pointer to the FIT format image header
* @image_noffset: component image node offset
*
* fit_image_verify() goes over component image hash nodes,
* re-calculates each data hash and compares with the value stored in hash
* node.
*
* returns:
* 1, if all hashes are valid
* 0, otherwise (or on error)
*/
int fit_image_verify(const void *fit, int image_noffset)
{
const void *data;
size_t size;
int noffset = 0;
char *err_msg = "";
/* Get image data and data length */
if (fit_image_get_data_and_size(fit, image_noffset, &data, &size)) {
err_msg = "Can't get image data/size";
printf("error!\n%s for '%s' hash node in '%s' image node\n",
err_msg, fit_get_name(fit, noffset, NULL),
fit_get_name(fit, image_noffset, NULL));
return 0;
}
return fit_image_verify_with_data(fit, image_noffset, data, size);
}
/**
* fit_all_image_verify - verify data integrity for all images
* @fit: pointer to the FIT format image header
*
* fit_all_image_verify() goes over all images in the FIT and
* for every images checks if all it's hashes are valid.
*
* returns:
* 1, if all hashes of all images are valid
* 0, otherwise (or on error)
*/
int fit_all_image_verify(const void *fit)
{
int images_noffset;
int noffset;
int ndepth;
int count;
/* 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 0;
}
/* Process all image subnodes, check hashes for each */
printf("## Checking hash(es) for FIT Image at %08lx ...\n",
(ulong)fit);
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.
*/
printf(" Hash(es) for Image %u (%s): ", count,
fit_get_name(fit, noffset, NULL));
count++;
if (!fit_image_verify(fit, noffset))
return 0;
printf("\n");
}
}
return 1;
}
/**
* fit_image_check_os - check whether image node is of a given os type
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @os: requested image os
*
* fit_image_check_os() reads image os property and compares its numeric
* id with the requested os. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given os type
* 0 otherwise (or on error)
*/
int fit_image_check_os(const void *fit, int noffset, uint8_t os)
{
uint8_t image_os;
if (fit_image_get_os(fit, noffset, &image_os))
return 0;
return (os == image_os);
}
/**
* fit_image_check_arch - check whether image node is of a given arch
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @arch: requested imagearch
*
* fit_image_check_arch() reads image arch property and compares its numeric
* id with the requested arch. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given arch
* 0 otherwise (or on error)
*/
int fit_image_check_arch(const void *fit, int noffset, uint8_t arch)
{
uint8_t image_arch;
int aarch32_support = 0;
#ifdef CONFIG_ARM64_SUPPORT_AARCH32
aarch32_support = 1;
#endif
if (fit_image_get_arch(fit, noffset, &image_arch))
return 0;
return (arch == image_arch) ||
(arch == IH_ARCH_I386 && image_arch == IH_ARCH_X86_64) ||
(arch == IH_ARCH_ARM64 && image_arch == IH_ARCH_ARM &&
aarch32_support);
}
/**
* fit_image_check_type - check whether image node is of a given type
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @type: requested image type
*
* fit_image_check_type() reads image type property and compares its numeric
* id with the requested type. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given type
* 0 otherwise (or on error)
*/
int fit_image_check_type(const void *fit, int noffset, uint8_t type)
{
uint8_t image_type;
if (fit_image_get_type(fit, noffset, &image_type))
return 0;
return (type == image_type);
}
/**
* fit_image_check_comp - check whether image node uses given compression
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @comp: requested image compression type
*
* fit_image_check_comp() reads image compression property and compares its
* numeric id with the requested compression type. Comparison result is
* returned to the caller.
*
* returns:
* 1 if image uses requested compression
* 0 otherwise (or on error)
*/
int fit_image_check_comp(const void *fit, int noffset, uint8_t comp)
{
uint8_t image_comp;
if (fit_image_get_comp(fit, noffset, &image_comp))
return 0;
return (comp == image_comp);
}
/**
* fit_check_format - sanity check FIT image format
* @fit: pointer to the FIT format image header
*
* fit_check_format() runs a basic sanity FIT image verification.
* Routine checks for mandatory properties, nodes, etc.
*
* returns:
* 1, on success
* 0, on failure
*/
int fit_check_format(const void *fit)
{
/* mandatory / node 'description' property */
if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) {
debug("Wrong FIT format: no description\n");
return 0;
}
if (IMAGE_ENABLE_TIMESTAMP) {
/* mandatory / node 'timestamp' property */
if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
debug("Wrong FIT format: no timestamp\n");
return 0;
}
}
/* mandatory subimages parent '/images' node */
if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) {
debug("Wrong FIT format: no images parent node\n");
return 0;
}
return 1;
}
/**
* fit_conf_find_compat
* @fit: pointer to the FIT format image header
* @fdt: pointer to the device tree to compare against
*
* fit_conf_find_compat() attempts to find the configuration whose fdt is the
* most compatible with the passed in device tree.
*
* Example:
*
* / o image-tree
* |-o images
* | |-o fdt-1
* | |-o fdt-2
* |
* |-o configurations
* |-o config-1
* | |-fdt = fdt-1
* |
* |-o config-2
* |-fdt = fdt-2
*
* / o U-Boot fdt
* |-compatible = "foo,bar", "bim,bam"
*
* / o kernel fdt1
* |-compatible = "foo,bar",
*
* / o kernel fdt2
* |-compatible = "bim,bam", "baz,biz"
*
* Configuration 1 would be picked because the first string in U-Boot's
* compatible list, "foo,bar", matches a compatible string in the root of fdt1.
* "bim,bam" in fdt2 matches the second string which isn't as good as fdt1.
*
* returns:
* offset to the configuration to use if one was found
* -1 otherwise
*/
int fit_conf_find_compat(const void *fit, const void *fdt)
{
int ndepth = 0;
int noffset, confs_noffset, images_noffset;
const void *fdt_compat;
int fdt_compat_len;
int best_match_offset = 0;
int best_match_pos = 0;
confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (confs_noffset < 0 || images_noffset < 0) {
debug("Can't find configurations or images nodes.\n");
return -1;
}
fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len);
if (!fdt_compat) {
debug("Fdt for comparison has no \"compatible\" property.\n");
return -1;
}
/*
* Loop over the configurations in the FIT image.
*/
for (noffset = fdt_next_node(fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
const void *kfdt;
const char *kfdt_name;
int kfdt_noffset;
const char *cur_fdt_compat;
int len;
size_t size;
int i;
if (ndepth > 1)
continue;
kfdt_name = fdt_getprop(fit, noffset, "fdt", &len);
if (!kfdt_name) {
debug("No fdt property found.\n");
continue;
}
kfdt_noffset = fdt_subnode_offset(fit, images_noffset,
kfdt_name);
if (kfdt_noffset < 0) {
debug("No image node named \"%s\" found.\n",
kfdt_name);
continue;
}
/*
* Get a pointer to this configuration's fdt.
*/
if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) {
debug("Failed to get fdt \"%s\".\n", kfdt_name);
continue;
}
len = fdt_compat_len;
cur_fdt_compat = fdt_compat;
/*
* Look for a match for each U-Boot compatibility string in
* turn in this configuration's fdt.
*/
for (i = 0; len > 0 &&
(!best_match_offset || best_match_pos > i); i++) {
int cur_len = strlen(cur_fdt_compat) + 1;
if (!fdt_node_check_compatible(kfdt, 0,
cur_fdt_compat)) {
best_match_offset = noffset;
best_match_pos = i;
break;
}
len -= cur_len;
cur_fdt_compat += cur_len;
}
}
if (!best_match_offset) {
debug("No match found.\n");
return -1;
}
return best_match_offset;
}
/**
* fit_conf_get_node - get node offset for configuration of a given unit name
* @fit: pointer to the FIT format image header
* @conf_uname: configuration node unit name
*
* fit_conf_get_node() finds a configuration (within the '/configurations'
* parent node) of a provided unit name. If configuration is found its node
* offset is returned to the caller.
*
* When NULL is provided in second argument fit_conf_get_node() will search
* for a default configuration node instead. Default configuration node unit
* name is retrieved from FIT_DEFAULT_PROP property of the '/configurations'
* node.
*
* returns:
* configuration node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_conf_get_node(const void *fit, const char *conf_uname)
{
int noffset, confs_noffset;
int len;
const char *s;
char *conf_uname_copy = NULL;
confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
if (confs_noffset < 0) {
debug("Can't find configurations parent node '%s' (%s)\n",
FIT_CONFS_PATH, fdt_strerror(confs_noffset));
return confs_noffset;
}
if (conf_uname == NULL) {
/* get configuration unit name from the default property */
debug("No configuration specified, trying default...\n");
conf_uname = (char *)fdt_getprop(fit, confs_noffset,
FIT_DEFAULT_PROP, &len);
if (conf_uname == NULL) {
fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP,
len);
return len;
}
debug("Found default configuration: '%s'\n", conf_uname);
}
s = strchr(conf_uname, '#');
if (s) {
len = s - conf_uname;
conf_uname_copy = malloc(len + 1);
if (!conf_uname_copy) {
debug("Can't allocate uname copy: '%s'\n",
conf_uname);
return -ENOMEM;
}
memcpy(conf_uname_copy, conf_uname, len);
conf_uname_copy[len] = '\0';
conf_uname = conf_uname_copy;
}
noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname);
if (noffset < 0) {
debug("Can't get node offset for configuration unit name: '%s' (%s)\n",
conf_uname, fdt_strerror(noffset));
}
if (conf_uname_copy)
free(conf_uname_copy);
return noffset;
}
int fit_conf_get_prop_node_count(const void *fit, int noffset,
const char *prop_name)
{
return fdt_stringlist_count(fit, noffset, prop_name);
}
int fit_conf_get_prop_node_index(const void *fit, int noffset,
const char *prop_name, int index)
{
const char *uname;
int len;
/* get kernel image unit name from configuration kernel property */
uname = fdt_stringlist_get(fit, noffset, prop_name, index, &len);
if (uname == NULL)
return len;
return fit_image_get_node(fit, uname);
}
int fit_conf_get_prop_node(const void *fit, int noffset,
const char *prop_name)
{
return fit_conf_get_prop_node_index(fit, noffset, prop_name, 0);
}
static int fit_image_select(const void *fit, int rd_noffset, int verify)
{
fit_image_print(fit, rd_noffset, " ");
if (verify) {
puts(" Verifying Hash Integrity ... ");
if (!fit_image_verify(fit, rd_noffset)) {
puts("Bad Data Hash\n");
return -EACCES;
}
puts("OK\n");
}
return 0;
}
int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
ulong addr)
{
int cfg_noffset;
void *fit_hdr;
int noffset;
debug("* %s: using config '%s' from image at 0x%08lx\n",
prop_name, images->fit_uname_cfg, addr);
/* Check whether configuration has this property defined */
fit_hdr = map_sysmem(addr, 0);
cfg_noffset = fit_conf_get_node(fit_hdr, images->fit_uname_cfg);
if (cfg_noffset < 0) {
debug("* %s: no such config\n", prop_name);
return -EINVAL;
}
noffset = fit_conf_get_prop_node(fit_hdr, cfg_noffset, prop_name);
if (noffset < 0) {
debug("* %s: no '%s' in config\n", prop_name, prop_name);
return -ENOENT;
}
return noffset;
}
/**
* fit_get_image_type_property() - get property name for IH_TYPE_...
*
* @return the properly name where we expect to find the image in the
* config node
*/
static const char *fit_get_image_type_property(int type)
{
/*
* This is sort-of available in the uimage_type[] table in image.c
* but we don't have access to the short name, and "fdt" is different
* anyway. So let's just keep it here.
*/
switch (type) {
case IH_TYPE_FLATDT:
return FIT_FDT_PROP;
case IH_TYPE_KERNEL:
return FIT_KERNEL_PROP;
case IH_TYPE_RAMDISK:
return FIT_RAMDISK_PROP;
case IH_TYPE_X86_SETUP:
return FIT_SETUP_PROP;
case IH_TYPE_LOADABLE:
return FIT_LOADABLE_PROP;
case IH_TYPE_FPGA:
return FIT_FPGA_PROP;
case IH_TYPE_STANDALONE:
return FIT_STANDALONE_PROP;
}
return "unknown";
}
int fit_image_load(bootm_headers_t *images, ulong addr,
const char **fit_unamep, const char **fit_uname_configp,
int arch, int image_type, int bootstage_id,
enum fit_load_op load_op, ulong *datap, ulong *lenp)
{
int cfg_noffset, noffset;
const char *fit_uname;
const char *fit_uname_config;
const char *fit_base_uname_config;
const void *fit;
const void *buf;
size_t size;
int type_ok, os_ok;
ulong load, data, len;
uint8_t os;
#ifndef USE_HOSTCC
uint8_t os_arch;
#endif
const char *prop_name;
int ret;
fit = map_sysmem(addr, 0);
fit_uname = fit_unamep ? *fit_unamep : NULL;
fit_uname_config = fit_uname_configp ? *fit_uname_configp : NULL;
fit_base_uname_config = NULL;
prop_name = fit_get_image_type_property(image_type);
printf("## Loading %s from FIT Image at %08lx ...\n", prop_name, addr);
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT);
if (!fit_check_format(fit)) {
printf("Bad FIT %s image format!\n", prop_name);
bootstage_error(bootstage_id + BOOTSTAGE_SUB_FORMAT);
return -ENOEXEC;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT_OK);
if (fit_uname) {
/* get FIT component image node offset */
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_UNIT_NAME);
noffset = fit_image_get_node(fit, fit_uname);
} else {
/*
* no image node unit name, try to get config
* node first. If config unit node name is NULL
* fit_conf_get_node() will try to find default config node
*/
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_NO_UNIT_NAME);
if (IMAGE_ENABLE_BEST_MATCH && !fit_uname_config) {
cfg_noffset = fit_conf_find_compat(fit, gd_fdt_blob());
} else {
cfg_noffset = fit_conf_get_node(fit,
fit_uname_config);
}
if (cfg_noffset < 0) {
puts("Could not find configuration node\n");
bootstage_error(bootstage_id +
BOOTSTAGE_SUB_NO_UNIT_NAME);
return -ENOENT;
}
fit_base_uname_config = fdt_get_name(fit, cfg_noffset, NULL);
printf(" Using '%s' configuration\n", fit_base_uname_config);
if (image_type == IH_TYPE_KERNEL) {
/* Remember (and possibly verify) this config */
images->fit_uname_cfg = fit_base_uname_config;
if (IMAGE_ENABLE_VERIFY && images->verify) {
puts(" Verifying Hash Integrity ... ");
if (fit_config_verify(fit, cfg_noffset)) {
puts("Bad Data Hash\n");
bootstage_error(bootstage_id +
BOOTSTAGE_SUB_HASH);
return -EACCES;
}
puts("OK\n");
}
bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG);
}
noffset = fit_conf_get_prop_node(fit, cfg_noffset,
prop_name);
fit_uname = fit_get_name(fit, noffset, NULL);
}
if (noffset < 0) {
puts("Could not find subimage node\n");
bootstage_error(bootstage_id + BOOTSTAGE_SUB_SUBNODE);
return -ENOENT;
}
printf(" Trying '%s' %s subimage\n", fit_uname, prop_name);
ret = fit_image_select(fit, noffset, images->verify);
if (ret) {
bootstage_error(bootstage_id + BOOTSTAGE_SUB_HASH);
return ret;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH);
#if !defined(USE_HOSTCC) && !defined(CONFIG_SANDBOX)
if (!fit_image_check_target_arch(fit, noffset)) {
puts("Unsupported Architecture\n");
bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH);
return -ENOEXEC;
}
#endif
#ifndef USE_HOSTCC
fit_image_get_arch(fit, noffset, &os_arch);
images->os.arch = os_arch;
#endif
if (image_type == IH_TYPE_FLATDT &&
!fit_image_check_comp(fit, noffset, IH_COMP_NONE)) {
puts("FDT image is compressed");
return -EPROTONOSUPPORT;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL);
type_ok = fit_image_check_type(fit, noffset, image_type) ||
fit_image_check_type(fit, noffset, IH_TYPE_FIRMWARE) ||
(image_type == IH_TYPE_KERNEL &&
fit_image_check_type(fit, noffset, IH_TYPE_KERNEL_NOLOAD));
os_ok = image_type == IH_TYPE_FLATDT ||
image_type == IH_TYPE_FPGA ||
fit_image_check_os(fit, noffset, IH_OS_LINUX) ||
fit_image_check_os(fit, noffset, IH_OS_U_BOOT) ||
fit_image_check_os(fit, noffset, IH_OS_OPENRTOS);
/*
* If either of the checks fail, we should report an error, but
* if the image type is coming from the "loadables" field, we
* don't care what it is
*/
if ((!type_ok || !os_ok) && image_type != IH_TYPE_LOADABLE) {
fit_image_get_os(fit, noffset, &os);
printf("No %s %s %s Image\n",
genimg_get_os_name(os),
genimg_get_arch_name(arch),
genimg_get_type_name(image_type));
bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL);
return -EIO;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_CHECK_ALL_OK);
/* get image data address and length */
if (fit_image_get_data_and_size(fit, noffset, &buf, &size)) {
printf("Could not find %s subimage data!\n", prop_name);
bootstage_error(bootstage_id + BOOTSTAGE_SUB_GET_DATA);
return -ENOENT;
}
#if !defined(USE_HOSTCC) && defined(CONFIG_FIT_IMAGE_POST_PROCESS)
/* perform any post-processing on the image data */
board_fit_image_post_process((void **)&buf, &size);
#endif
len = (ulong)size;
/* verify that image data is a proper FDT blob */
if (image_type == IH_TYPE_FLATDT && fdt_check_header(buf)) {
puts("Subimage data is not a FDT");
return -ENOEXEC;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_GET_DATA_OK);
/*
* Work-around for eldk-4.2 which gives this warning if we try to
* cast in the unmap_sysmem() call:
* warning: initialization discards qualifiers from pointer target type
*/
{
void *vbuf = (void *)buf;
data = map_to_sysmem(vbuf);
}
if (load_op == FIT_LOAD_IGNORED) {
/* Don't load */
} else if (fit_image_get_load(fit, noffset, &load)) {
if (load_op == FIT_LOAD_REQUIRED) {
printf("Can't get %s subimage load address!\n",
prop_name);
bootstage_error(bootstage_id + BOOTSTAGE_SUB_LOAD);
return -EBADF;
}
} else if (load_op != FIT_LOAD_OPTIONAL_NON_ZERO || load) {
ulong image_start, image_end;
ulong load_end;
void *dst;
/*
* move image data to the load address,
* make sure we don't overwrite initial image
*/
image_start = addr;
image_end = addr + fit_get_size(fit);
load_end = load + len;
if (image_type != IH_TYPE_KERNEL &&
load < image_end && load_end > image_start) {
printf("Error: %s overwritten\n", prop_name);
return -EXDEV;
}
printf(" Loading %s from 0x%08lx to 0x%08lx\n",
prop_name, data, load);
dst = map_sysmem(load, len);
memmove(dst, buf, len);
data = load;
}
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_LOAD);
*datap = data;
*lenp = len;
if (fit_unamep)
*fit_unamep = (char *)fit_uname;
if (fit_uname_configp)
*fit_uname_configp = (char *)(fit_uname_config ? :
fit_base_uname_config);
return noffset;
}
int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch,
ulong *setup_start, ulong *setup_len)
{
int noffset;
ulong addr;
ulong len;
int ret;
addr = map_to_sysmem(images->fit_hdr_os);
noffset = fit_get_node_from_config(images, FIT_SETUP_PROP, addr);
if (noffset < 0)
return noffset;
ret = fit_image_load(images, addr, NULL, NULL, arch,
IH_TYPE_X86_SETUP, BOOTSTAGE_ID_FIT_SETUP_START,
FIT_LOAD_REQUIRED, setup_start, &len);
return ret;
}
#ifndef USE_HOSTCC
int boot_get_fdt_fit(bootm_headers_t *images, ulong addr,
const char **fit_unamep, const char **fit_uname_configp,
int arch, ulong *datap, ulong *lenp)
{
int fdt_noffset, cfg_noffset, count;
const void *fit;
const char *fit_uname = NULL;
const char *fit_uname_config = NULL;
char *fit_uname_config_copy = NULL;
char *next_config = NULL;
ulong load, len;
#ifdef CONFIG_OF_LIBFDT_OVERLAY
ulong image_start, image_end;
ulong ovload, ovlen;
const char *uconfig;
const char *uname;
void *base, *ov;
int i, err, noffset, ov_noffset;
#endif
fit_uname = fit_unamep ? *fit_unamep : NULL;
if (fit_uname_configp && *fit_uname_configp) {
fit_uname_config_copy = strdup(*fit_uname_configp);
if (!fit_uname_config_copy)
return -ENOMEM;
next_config = strchr(fit_uname_config_copy, '#');
if (next_config)
*next_config++ = '\0';
if (next_config - 1 > fit_uname_config_copy)
fit_uname_config = fit_uname_config_copy;
}
fdt_noffset = fit_image_load(images,
addr, &fit_uname, &fit_uname_config,
arch, IH_TYPE_FLATDT,
BOOTSTAGE_ID_FIT_FDT_START,
FIT_LOAD_OPTIONAL, &load, &len);
if (fdt_noffset < 0)
goto out;
debug("fit_uname=%s, fit_uname_config=%s\n",
fit_uname ? fit_uname : "<NULL>",
fit_uname_config ? fit_uname_config : "<NULL>");
fit = map_sysmem(addr, 0);
cfg_noffset = fit_conf_get_node(fit, fit_uname_config);
/* single blob, or error just return as well */
count = fit_conf_get_prop_node_count(fit, cfg_noffset, FIT_FDT_PROP);
if (count <= 1 && !next_config)
goto out;
/* we need to apply overlays */
#ifdef CONFIG_OF_LIBFDT_OVERLAY
image_start = addr;
image_end = addr + fit_get_size(fit);
/* verify that relocation took place by load address not being in fit */
if (load >= image_start && load < image_end) {
/* check is simplified; fit load checks for overlaps */
printf("Overlayed FDT requires relocation\n");
fdt_noffset = -EBADF;
goto out;
}
base = map_sysmem(load, len);
/* apply extra configs in FIT first, followed by args */
for (i = 1; ; i++) {
if (i < count) {
noffset = fit_conf_get_prop_node_index(fit, cfg_noffset,
FIT_FDT_PROP, i);
uname = fit_get_name(fit, noffset, NULL);
uconfig = NULL;
} else {
if (!next_config)
break;
uconfig = next_config;
next_config = strchr(next_config, '#');
if (next_config)
*next_config++ = '\0';
uname = NULL;
}
debug("%d: using uname=%s uconfig=%s\n", i, uname, uconfig);
ov_noffset = fit_image_load(images,
addr, &uname, &uconfig,
arch, IH_TYPE_FLATDT,
BOOTSTAGE_ID_FIT_FDT_START,
FIT_LOAD_REQUIRED, &ovload, &ovlen);
if (ov_noffset < 0) {
printf("load of %s failed\n", uname);
continue;
}
debug("%s loaded at 0x%08lx len=0x%08lx\n",
uname, ovload, ovlen);
ov = map_sysmem(ovload, ovlen);
base = map_sysmem(load, len + ovlen);
err = fdt_open_into(base, base, len + ovlen);
if (err < 0) {
printf("failed on fdt_open_into\n");
fdt_noffset = err;
goto out;
}
/* the verbose method prints out messages on error */
err = fdt_overlay_apply_verbose(base, ov);
if (err < 0) {
fdt_noffset = err;
goto out;
}
fdt_pack(base);
len = fdt_totalsize(base);
}
#else
printf("config with overlays but CONFIG_OF_LIBFDT_OVERLAY not set\n");
fdt_noffset = -EBADF;
#endif
out:
if (datap)
*datap = load;
if (lenp)
*lenp = len;
if (fit_unamep)
*fit_unamep = fit_uname;
if (fit_uname_configp)
*fit_uname_configp = fit_uname_config;
if (fit_uname_config_copy)
free(fit_uname_config_copy);
return fdt_noffset;
}
#endif