| // 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. |
| */ |
| |
| #define LOG_CATEGORY LOGC_BOOT |
| |
| #ifdef USE_HOSTCC |
| #include "mkimage.h" |
| #include <time.h> |
| #include <linux/libfdt.h> |
| #include <u-boot/crc.h> |
| #else |
| #include <linux/compiler.h> |
| #include <linux/sizes.h> |
| #include <common.h> |
| #include <errno.h> |
| #include <log.h> |
| #include <mapmem.h> |
| #include <asm/io.h> |
| #include <malloc.h> |
| #include <asm/global_data.h> |
| DECLARE_GLOBAL_DATA_PTR; |
| #endif /* !USE_HOSTCC*/ |
| |
| #include <bootm.h> |
| #include <image.h> |
| #include <bootstage.h> |
| #include <linux/kconfig.h> |
| #include <u-boot/crc.h> |
| #include <u-boot/md5.h> |
| #include <u-boot/sha1.h> |
| #include <u-boot/sha256.h> |
| #include <u-boot/sha512.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 */ |
| |
| #ifdef USE_HOSTCC |
| /* Host tools use these implementations for Cipher and Signature support */ |
| static void *host_blob; |
| |
| void image_set_host_blob(void *blob) |
| { |
| host_blob = blob; |
| } |
| |
| void *image_get_host_blob(void) |
| { |
| return host_blob; |
| } |
| #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 CONFIG_IS_ENABLED(FIT_PRINT) || CONFIG_IS_ENABLED(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; |
| const char *padding; |
| bool 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, FIT_KEY_HINT, NULL); |
| required = fdt_getprop(fit, noffset, FIT_KEY_REQUIRED, NULL) != NULL; |
| if (keyname) |
| printf(":%s", keyname); |
| if (required) |
| printf(" (required)"); |
| printf("\n"); |
| |
| padding = fdt_getprop(fit, noffset, "padding", NULL); |
| if (padding) |
| printf("%s %s padding: %s\n", p, type, padding); |
| |
| 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); |
| |
| if (!host_build()) { |
| printf("%s Data Start: ", p); |
| if (ret) { |
| printf("unavailable\n"); |
| } else { |
| void *vdata = (void *)data; |
| |
| printf("0x%08lx\n", (ulong)map_to_sysmem(vdata)); |
| } |
| } |
| |
| 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 /* CONFIG_IS_ENABLED(FIR_PRINT) || CONFIG_IS_ENABLED(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; |
| } |
| |
| 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++; |
| } |
| |
| if (len > sizeof(ulong) && (uint32_t)(load64 >> 32)) { |
| printf("Unsupported %s address size\n", name); |
| return -1; |
| } |
| |
| *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; |
| } |
| |
| /** |
| * Get 'data-size-unciphered' 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_unciphered(const void *fit, int noffset, |
| size_t *data_size) |
| { |
| const fdt32_t *val; |
| |
| val = fdt_getprop(fit, noffset, "data-size-unciphered", NULL); |
| if (!val) |
| return -ENOENT; |
| |
| *data_size = (size_t)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); |
| if (!ret) { |
| *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; |
| } |
| |
| /** |
| * fit_image_cipher_get_algo - get cipher algorithm name |
| * @fit: pointer to the FIT format image header |
| * @noffset: cipher node offset |
| * @algo: double pointer to char, will hold pointer to the algorithm name |
| * |
| * fit_image_cipher_get_algo() finds cipher algorithm property in a given |
| * cipher 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_cipher_get_algo(const void *fit, int noffset, char **algo) |
| { |
| int len; |
| |
| *algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len); |
| if (!*algo) { |
| fit_get_debug(fit, noffset, FIT_ALGO_PROP, len); |
| return -1; |
| } |
| |
| 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_SHA384 && strcmp(algo, "sha384") == 0) { |
| sha384_csum_wd((unsigned char *)data, data_len, |
| (unsigned char *)value, CHUNKSZ_SHA384); |
| *value_len = SHA384_SUM_LEN; |
| } else if (IMAGE_ENABLE_SHA512 && strcmp(algo, "sha512") == 0) { |
| sha512_csum_wd((unsigned char *)data, data_len, |
| (unsigned char *)value, CHUNKSZ_SHA512); |
| *value_len = SHA512_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 (FIT_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 (FIT_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 char *name = fit_get_name(fit, image_noffset, NULL); |
| const void *data; |
| size_t size; |
| char *err_msg = ""; |
| |
| if (strchr(name, '@')) { |
| /* |
| * We don't support this since libfdt considers names with the |
| * name root but different @ suffix to be equal |
| */ |
| err_msg = "Node name contains @"; |
| goto err; |
| } |
| /* 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"; |
| goto err; |
| } |
| |
| return fit_image_verify_with_data(fit, image_noffset, data, size); |
| |
| err: |
| printf("error!\n%s in '%s' image node\n", err_msg, |
| fit_get_name(fit, image_noffset, NULL)); |
| return 0; |
| } |
| |
| /** |
| * 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; |
| } |
| |
| static int fit_image_uncipher(const void *fit, int image_noffset, |
| void **data, size_t *size) |
| { |
| int cipher_noffset, ret; |
| void *dst; |
| size_t size_dst; |
| |
| cipher_noffset = fdt_subnode_offset(fit, image_noffset, |
| FIT_CIPHER_NODENAME); |
| if (cipher_noffset < 0) |
| return 0; |
| |
| ret = fit_image_decrypt_data(fit, image_noffset, cipher_noffset, |
| *data, *size, &dst, &size_dst); |
| if (ret) |
| goto out; |
| |
| *data = dst; |
| *size = size_dst; |
| |
| out: |
| return ret; |
| } |
| |
| /** |
| * 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; |
| |
| /* Let's assume that sandbox can load any architecture */ |
| if (IS_ENABLED(CONFIG_SANDBOX)) |
| return true; |
| |
| if (IS_ENABLED(CONFIG_ARM64_SUPPORT_AARCH32)) |
| aarch32_support = 1; |
| |
| 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); |
| } |
| |
| /** |
| * fdt_check_no_at() - Check for nodes whose names contain '@' |
| * |
| * This checks the parent node and all subnodes recursively |
| * |
| * @fit: FIT to check |
| * @parent: Parent node to check |
| * @return 0 if OK, -EADDRNOTAVAIL is a node has a name containing '@' |
| */ |
| static int fdt_check_no_at(const void *fit, int parent) |
| { |
| const char *name; |
| int node; |
| int ret; |
| |
| name = fdt_get_name(fit, parent, NULL); |
| if (!name || strchr(name, '@')) |
| return -EADDRNOTAVAIL; |
| |
| fdt_for_each_subnode(node, fit, parent) { |
| ret = fdt_check_no_at(fit, node); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| int fit_check_format(const void *fit, ulong size) |
| { |
| int ret; |
| |
| /* A FIT image must be a valid FDT */ |
| ret = fdt_check_header(fit); |
| if (ret) { |
| log_debug("Wrong FIT format: not a flattened device tree (err=%d)\n", |
| ret); |
| return -ENOEXEC; |
| } |
| |
| if (CONFIG_IS_ENABLED(FIT_FULL_CHECK)) { |
| /* |
| * If we are not given the size, make do wtih calculating it. |
| * This is not as secure, so we should consider a flag to |
| * control this. |
| */ |
| if (size == IMAGE_SIZE_INVAL) |
| size = fdt_totalsize(fit); |
| ret = fdt_check_full(fit, size); |
| if (ret) |
| ret = -EINVAL; |
| |
| /* |
| * U-Boot stopped using unit addressed in 2017. Since libfdt |
| * can match nodes ignoring any unit address, signature |
| * verification can see the wrong node if one is inserted with |
| * the same name as a valid node but with a unit address |
| * attached. Protect against this by disallowing unit addresses. |
| */ |
| if (!ret && CONFIG_IS_ENABLED(FIT_SIGNATURE)) { |
| ret = fdt_check_no_at(fit, 0); |
| |
| if (ret) { |
| log_debug("FIT check error %d\n", ret); |
| return ret; |
| } |
| } |
| if (ret) { |
| log_debug("FIT check error %d\n", ret); |
| return ret; |
| } |
| } |
| |
| /* mandatory / node 'description' property */ |
| if (!fdt_getprop(fit, 0, FIT_DESC_PROP, NULL)) { |
| log_debug("Wrong FIT format: no description\n"); |
| return -ENOMSG; |
| } |
| |
| if (IMAGE_ENABLE_TIMESTAMP) { |
| /* mandatory / node 'timestamp' property */ |
| if (!fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL)) { |
| log_debug("Wrong FIT format: no timestamp\n"); |
| return -EBADMSG; |
| } |
| } |
| |
| /* mandatory subimages parent '/images' node */ |
| if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) { |
| log_debug("Wrong FIT format: no images parent node\n"); |
| return -ENOENT; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * 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. |
| * |
| * As an optimization, the compatible property from the FDT's root node can be |
| * copied into the configuration node in the FIT image. This is required to |
| * match configurations with compressed FDTs. |
| * |
| * 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 *fdt; |
| const char *kfdt_name; |
| int kfdt_noffset, compat_noffset; |
| const char *cur_fdt_compat; |
| int len; |
| size_t sz; |
| int i; |
| |
| if (ndepth > 1) |
| continue; |
| |
| /* If there's a compat property in the config node, use that. */ |
| if (fdt_getprop(fit, noffset, "compatible", NULL)) { |
| fdt = fit; /* search in FIT image */ |
| compat_noffset = noffset; /* search under config node */ |
| } else { /* Otherwise extract it from the kernel FDT. */ |
| 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; |
| } |
| |
| if (!fit_image_check_comp(fit, kfdt_noffset, |
| IH_COMP_NONE)) { |
| debug("Can't extract compat from \"%s\" " |
| "(compressed)\n", kfdt_name); |
| continue; |
| } |
| |
| /* search in this config's kernel FDT */ |
| if (fit_image_get_data(fit, kfdt_noffset, &fdt, &sz)) { |
| debug("Failed to get fdt \"%s\".\n", kfdt_name); |
| continue; |
| } |
| |
| compat_noffset = 0; /* search kFDT under root node */ |
| } |
| |
| len = fdt_compat_len; |
| cur_fdt_compat = fdt_compat; |
| /* |
| * Look for a match for each U-Boot compatibility string in |
| * turn in the compat string property. |
| */ |
| 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(fdt, compat_noffset, |
| 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; |
| } |
| |
| 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"); |
| if (!host_build() && IS_ENABLED(CONFIG_MULTI_DTB_FIT)) { |
| noffset = fit_find_config_node(fit); |
| if (noffset < 0) |
| return noffset; |
| conf_uname = fdt_get_name(fit, noffset, NULL); |
| } else { |
| 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_FIRMWARE: |
| return FIT_FIRMWARE_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; |
| void *buf; |
| void *loadbuf; |
| size_t size; |
| int type_ok, os_ok; |
| ulong load, load_end, data, len; |
| uint8_t os, comp; |
| #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); |
| ret = fit_check_format(fit, IMAGE_SIZE_INVAL); |
| if (ret) { |
| printf("Bad FIT %s image format! (err=%d)\n", prop_name, ret); |
| if (CONFIG_IS_ENABLED(FIT_SIGNATURE) && ret == -EADDRNOTAVAIL) |
| printf("Signature checking prevents use of unit addresses (@) in nodes\n"); |
| bootstage_error(bootstage_id + BOOTSTAGE_SUB_FORMAT); |
| return ret; |
| } |
| 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); |
| /* Remember this config */ |
| if (image_type == IH_TYPE_KERNEL) |
| images->fit_uname_cfg = fit_base_uname_config; |
| |
| if (FIT_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) { |
| printf("Could not find subimage node type '%s'\n", prop_name); |
| 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 (!host_build() && IS_ENABLED(CONFIG_SANDBOX)) { |
| if (!fit_image_check_target_arch(fit, noffset)) { |
| puts("Unsupported Architecture\n"); |
| bootstage_error(bootstage_id + BOOTSTAGE_SUB_CHECK_ARCH); |
| return -ENOEXEC; |
| } |
| } |
| |
| #ifndef USE_HOSTCC |
| fit_image_get_arch(fit, noffset, &os_arch); |
| images->os.arch = os_arch; |
| #endif |
| |
| 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) || |
| fit_image_check_type(fit, noffset, IH_TYPE_TEE) || |
| (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_TEE) || |
| fit_image_check_os(fit, noffset, IH_OS_OPENRTOS) || |
| fit_image_check_os(fit, noffset, IH_OS_EFI) || |
| fit_image_check_os(fit, noffset, IH_OS_VXWORKS); |
| |
| /* |
| * 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, |
| (const void **)&buf, &size)) { |
| printf("Could not find %s subimage data!\n", prop_name); |
| bootstage_error(bootstage_id + BOOTSTAGE_SUB_GET_DATA); |
| return -ENOENT; |
| } |
| |
| /* Decrypt data before uncompress/move */ |
| if (IS_ENABLED(CONFIG_FIT_CIPHER) && IMAGE_ENABLE_DECRYPT) { |
| puts(" Decrypting Data ... "); |
| if (fit_image_uncipher(fit, noffset, &buf, &size)) { |
| puts("Error\n"); |
| return -EACCES; |
| } |
| puts("OK\n"); |
| } |
| |
| /* perform any post-processing on the image data */ |
| if (!host_build() && IS_ENABLED(CONFIG_FIT_IMAGE_POST_PROCESS)) |
| board_fit_image_post_process(fit, noffset, &buf, &size); |
| |
| len = (ulong)size; |
| |
| bootstage_mark(bootstage_id + BOOTSTAGE_SUB_GET_DATA_OK); |
| |
| data = map_to_sysmem(buf); |
| load = data; |
| 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; |
| |
| /* |
| * 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); |
| } else { |
| load = data; /* No load address specified */ |
| } |
| |
| comp = IH_COMP_NONE; |
| loadbuf = buf; |
| /* Kernel images get decompressed later in bootm_load_os(). */ |
| if (!fit_image_get_comp(fit, noffset, &comp) && |
| comp != IH_COMP_NONE && |
| !(image_type == IH_TYPE_KERNEL || |
| image_type == IH_TYPE_KERNEL_NOLOAD || |
| image_type == IH_TYPE_RAMDISK)) { |
| ulong max_decomp_len = len * 20; |
| if (load == data) { |
| loadbuf = malloc(max_decomp_len); |
| load = map_to_sysmem(loadbuf); |
| } else { |
| loadbuf = map_sysmem(load, max_decomp_len); |
| } |
| if (image_decomp(comp, load, data, image_type, |
| loadbuf, buf, len, max_decomp_len, &load_end)) { |
| printf("Error decompressing %s\n", prop_name); |
| |
| return -ENOEXEC; |
| } |
| len = load_end - load; |
| } else if (load != data) { |
| loadbuf = map_sysmem(load, len); |
| memcpy(loadbuf, buf, len); |
| } |
| |
| if (image_type == IH_TYPE_RAMDISK && comp != IH_COMP_NONE) |
| puts("WARNING: 'compression' nodes for ramdisks are deprecated," |
| " please fix your .its file!\n"); |
| |
| /* verify that image data is a proper FDT blob */ |
| if (image_type == IH_TYPE_FLATDT && fdt_check_header(loadbuf)) { |
| puts("Subimage data is not a FDT"); |
| return -ENOEXEC; |
| } |
| |
| bootstage_mark(bootstage_id + BOOTSTAGE_SUB_LOAD); |
| |
| *datap = load; |
| *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, ovcopylen; |
| const char *uconfig; |
| const char *uname; |
| void *base, *ov, *ovcopy = NULL; |
| 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; |
| |
| /* |
| * fit_image_load() would load the first FDT from the |
| * extra config only when uconfig is specified. |
| * Check if the extra config contains multiple FDTs and |
| * if so, load them. |
| */ |
| cfg_noffset = fit_conf_get_node(fit, uconfig); |
| |
| i = 0; |
| count = fit_conf_get_prop_node_count(fit, cfg_noffset, |
| FIT_FDT_PROP); |
| } |
| |
| 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_IGNORED, &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); |
| |
| ovcopylen = ALIGN(fdt_totalsize(ov), SZ_4K); |
| ovcopy = malloc(ovcopylen); |
| if (!ovcopy) { |
| printf("failed to duplicate DTO before application\n"); |
| fdt_noffset = -ENOMEM; |
| goto out; |
| } |
| |
| err = fdt_open_into(ov, ovcopy, ovcopylen); |
| if (err < 0) { |
| printf("failed on fdt_open_into for DTO\n"); |
| fdt_noffset = err; |
| goto out; |
| } |
| |
| 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, ovcopy); |
| if (err < 0) { |
| fdt_noffset = err; |
| goto out; |
| } |
| fdt_pack(base); |
| len = fdt_totalsize(base); |
| |
| free(ovcopy); |
| ovcopy = NULL; |
| } |
| #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; |
| |
| #ifdef CONFIG_OF_LIBFDT_OVERLAY |
| if (ovcopy) |
| free(ovcopy); |
| #endif |
| if (fit_uname_config_copy) |
| free(fit_uname_config_copy); |
| return fdt_noffset; |
| } |
| #endif |