| /* |
| * Copyright (c) 2013, Google Inc. |
| * |
| * (C) Copyright 2008 Semihalf |
| * |
| * (C) Copyright 2000-2006 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifdef USE_HOSTCC |
| #include "mkimage.h" |
| #include <image.h> |
| #include <time.h> |
| #else |
| #include <common.h> |
| #endif /* !USE_HOSTCC*/ |
| |
| #include <bootstage.h> |
| #include <sha1.h> |
| #include <u-boot/crc.h> |
| #include <u-boot/md5.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 for 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 for 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_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) follwed 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; |
| |
| #ifdef USE_HOSTCC |
| p = ""; |
| #else |
| p = " "; |
| #endif |
| |
| /* 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 properies 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); |
| |
| 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(fit, image_noffset, &data, &size); |
| |
| #ifndef USE_HOSTCC |
| printf("%s Data Start: ", p); |
| if (ret) |
| printf("unavailable\n"); |
| else |
| printf("0x%08lx\n", (ulong)data); |
| #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)) { |
| 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)) { |
| 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); |
| } |
| |
| if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) || |
| (type == IH_TYPE_RAMDISK)) { |
| 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_hash(fit, noffset, p); |
| } |
| } |
| } |
| |
| /** |
| * fit_image_print_hash - 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 |
| * |
| * fit_image_print_hash() lists properies for the processed hash node |
| * |
| * returns: |
| * no returned results |
| */ |
| void fit_image_print_hash(const void *fit, int noffset, const char *p) |
| { |
| char *algo; |
| uint8_t *value; |
| int value_len; |
| int i, ret; |
| |
| /* |
| * 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(fit_get_name(fit, noffset, NULL), |
| FIT_HASH_NODENAME, strlen(FIT_HASH_NODENAME)) != 0) |
| return; |
| |
| debug("%s Hash node: '%s'\n", p, |
| fit_get_name(fit, noffset, NULL)); |
| |
| printf("%s Hash algo: ", p); |
| if (fit_image_hash_get_algo(fit, noffset, &algo)) { |
| printf("invalid/unsupported\n"); |
| return; |
| } |
| printf("%s\n", algo); |
| |
| ret = fit_image_hash_get_value(fit, noffset, &value, |
| &value_len); |
| printf("%s Hash value: ", p); |
| if (ret) { |
| printf("unavailable\n"); |
| } else { |
| for (i = 0; i < value_len; i++) |
| printf("%02x", value[i]); |
| printf("\n"); |
| } |
| |
| debug("%s Hash len: %d\n", p, value_len); |
| } |
| |
| /** |
| * 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 descrption |
| * |
| * fit_get_desc() reads description property from a given node, if |
| * description is found pointer to it is returened 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 poperty from given node, if timestamp |
| * is found and has a correct size its value is retured 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 (withing 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; |
| } |
| |
| /** |
| * 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) |
| { |
| int len; |
| const uint32_t *data; |
| |
| data = fdt_getprop(fit, noffset, FIT_LOAD_PROP, &len); |
| if (data == NULL) { |
| fit_get_debug(fit, noffset, FIT_LOAD_PROP, len); |
| return -1; |
| } |
| |
| *load = uimage_to_cpu(*data); |
| return 0; |
| } |
| |
| /** |
| * 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) |
| { |
| int len; |
| const uint32_t *data; |
| |
| data = fdt_getprop(fit, noffset, FIT_ENTRY_PROP, &len); |
| if (data == NULL) { |
| fit_get_debug(fit, noffset, FIT_ENTRY_PROP, len); |
| return -1; |
| } |
| |
| *entry = uimage_to_cpu(*data); |
| return 0; |
| } |
| |
| /** |
| * 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; |
| } |
| |
| /** |
| * 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_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 |
| * -1, on property read failure |
| */ |
| 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) { |
| printf("Can't set '%s' property for '%s' node (%s)\n", |
| FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL), |
| fdt_strerror(ret)); |
| return -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 (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 (strcmp(algo, "sha1") == 0) { |
| sha1_csum_wd((unsigned char *)data, data_len, |
| (unsigned char *)value, CHUNKSZ_SHA1); |
| *value_len = 20; |
| } else if (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; |
| } |
| |
| /** |
| * fit_image_verify - verify data intergity |
| * @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; |
| char *err_msg = ""; |
| |
| /* Get image data and data length */ |
| if (fit_image_get_data(fit, image_noffset, &data, &size)) { |
| err_msg = "Can't get image data/size"; |
| return 0; |
| } |
| |
| /* Process all hash subnodes of the component image node */ |
| for (noffset = fdt_first_subnode(fit, image_noffset); |
| noffset >= 0; |
| noffset = fdt_next_subnode(fit, 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("+ "); |
| } |
| } |
| |
| 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_all_image_verify - verify data intergity 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)); |
| |
| 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; |
| |
| if (fit_image_get_arch(fit, noffset, &image_arch)) |
| return 0; |
| return (arch == image_arch); |
| } |
| |
| /** |
| * 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 (withing the '/configurations' |
| * parant 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 retrived 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; |
| |
| 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); |
| } |
| |
| 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)); |
| } |
| |
| return noffset; |
| } |
| |
| static int __fit_conf_get_prop_node(const void *fit, int noffset, |
| const char *prop_name) |
| { |
| char *uname; |
| int len; |
| |
| /* get kernel image unit name from configuration kernel property */ |
| uname = (char *)fdt_getprop(fit, noffset, prop_name, &len); |
| if (uname == NULL) |
| return len; |
| |
| return fit_image_get_node(fit, uname); |
| } |
| |
| /** |
| * fit_conf_get_kernel_node - get kernel image node offset that corresponds to |
| * a given configuration |
| * @fit: pointer to the FIT format image header |
| * @noffset: configuration node offset |
| * |
| * fit_conf_get_kernel_node() retrives kernel image node unit name from |
| * configuration FIT_KERNEL_PROP property and translates it to the node |
| * offset. |
| * |
| * returns: |
| * image node offset when found (>=0) |
| * negative number on failure (FDT_ERR_* code) |
| */ |
| int fit_conf_get_kernel_node(const void *fit, int noffset) |
| { |
| return __fit_conf_get_prop_node(fit, noffset, FIT_KERNEL_PROP); |
| } |
| |
| /** |
| * fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to |
| * a given configuration |
| * @fit: pointer to the FIT format image header |
| * @noffset: configuration node offset |
| * |
| * fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from |
| * configuration FIT_KERNEL_PROP property and translates it to the node |
| * offset. |
| * |
| * returns: |
| * image node offset when found (>=0) |
| * negative number on failure (FDT_ERR_* code) |
| */ |
| int fit_conf_get_ramdisk_node(const void *fit, int noffset) |
| { |
| return __fit_conf_get_prop_node(fit, noffset, FIT_RAMDISK_PROP); |
| } |
| |
| /** |
| * fit_conf_get_fdt_node - get fdt image node offset that corresponds to |
| * a given configuration |
| * @fit: pointer to the FIT format image header |
| * @noffset: configuration node offset |
| * |
| * fit_conf_get_fdt_node() retrives fdt image node unit name from |
| * configuration FIT_KERNEL_PROP property and translates it to the node |
| * offset. |
| * |
| * returns: |
| * image node offset when found (>=0) |
| * negative number on failure (FDT_ERR_* code) |
| */ |
| int fit_conf_get_fdt_node(const void *fit, int noffset) |
| { |
| return __fit_conf_get_prop_node(fit, noffset, FIT_FDT_PROP); |
| } |
| |
| /** |
| * 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 properies for the processed |
| * configuration node. |
| * |
| * returns: |
| * no returned results |
| */ |
| void fit_conf_print(const void *fit, int noffset, const char *p) |
| { |
| char *desc; |
| char *uname; |
| int ret; |
| |
| /* Mandatory properties */ |
| ret = fit_get_desc(fit, noffset, &desc); |
| printf("%s Description: ", p); |
| if (ret) |
| printf("unavailable\n"); |
| else |
| printf("%s\n", desc); |
| |
| uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL); |
| printf("%s Kernel: ", p); |
| if (uname == NULL) |
| printf("unavailable\n"); |
| else |
| printf("%s\n", uname); |
| |
| /* Optional properties */ |
| uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL); |
| if (uname) |
| printf("%s Init Ramdisk: %s\n", p, uname); |
| |
| uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL); |
| if (uname) |
| printf("%s FDT: %s\n", p, uname); |
| } |
| |
| /** |
| * fit_check_ramdisk - verify FIT format ramdisk subimage |
| * @fit_hdr: pointer to the FIT ramdisk header |
| * @rd_noffset: ramdisk subimage node offset within FIT image |
| * @arch: requested ramdisk image architecture type |
| * @verify: data CRC verification flag |
| * |
| * fit_check_ramdisk() verifies integrity of the ramdisk subimage and from |
| * specified FIT image. |
| * |
| * returns: |
| * 1, on success |
| * 0, on failure |
| */ |
| #ifndef USE_HOSTCC |
| int fit_check_ramdisk(const void *fit, int rd_noffset, uint8_t arch, |
| 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"); |
| bootstage_error(BOOTSTAGE_ID_FIT_RD_HASH); |
| return 0; |
| } |
| puts("OK\n"); |
| } |
| |
| bootstage_mark(BOOTSTAGE_ID_FIT_RD_CHECK_ALL); |
| if (!fit_image_check_os(fit, rd_noffset, IH_OS_LINUX) || |
| !fit_image_check_arch(fit, rd_noffset, arch) || |
| !fit_image_check_type(fit, rd_noffset, IH_TYPE_RAMDISK)) { |
| printf("No Linux %s Ramdisk Image\n", |
| genimg_get_arch_name(arch)); |
| bootstage_error(BOOTSTAGE_ID_FIT_RD_CHECK_ALL); |
| return 0; |
| } |
| |
| bootstage_mark(BOOTSTAGE_ID_FIT_RD_CHECK_ALL_OK); |
| return 1; |
| } |
| #endif /* USE_HOSTCC */ |