diff options
Diffstat (limited to 'common/image.c')
| -rw-r--r-- | common/image.c | 1602 |
1 files changed, 0 insertions, 1602 deletions
diff --git a/common/image.c b/common/image.c index 7b48564390..3aefd2af16 100644 --- a/common/image.c +++ b/common/image.c @@ -1787,1605 +1787,3 @@ int boot_get_kbd(struct lmb *lmb, bd_t **kbd) } #endif /* CONFIG_SYS_BOOT_GET_KBD */ #endif /* !USE_HOSTCC */ - -#if defined(CONFIG_FIT) -/*****************************************************************************/ -/* 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 address property for a 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 for a given component image node - * @fit: pointer to the FIT format image header - * @noffset: component image node offset - * @entry: pointer to the uint32_t, will hold entry point address - * - * 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; -} - -#ifndef USE_HOSTCC -/** - * 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 - */ -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; -} -#endif - -/** - * 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 - */ -static 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; -} - -#ifdef USE_HOSTCC -/** - * fit_set_hashes - process FIT component image nodes and calculate hashes - * @fit: pointer to the FIT format image header - * - * fit_set_hashes() adds hash values for all component images in the FIT blob. - * Hashes are calculated for all component images which have hash subnodes - * with algorithm property set to one of the supported hash algorithms. - * - * returns - * 0, on success - * libfdt error code, on failure - */ -int fit_set_hashes(void *fit) -{ - int images_noffset; - int noffset; - int ndepth; - int ret; - - /* 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 images_noffset; - } - - /* Process its subnodes, print out component images details */ - for (ndepth = 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. - */ - ret = fit_image_set_hashes(fit, noffset); - if (ret) - return ret; - } - } - - return 0; -} - -/** - * fit_image_set_hashes - calculate/set hashes for given component image node - * @fit: pointer to the FIT format image header - * @image_noffset: requested component image node - * - * fit_image_set_hashes() adds hash values for an component image node. All - * existing hash subnodes are checked, if algorithm property is set to one of - * the supported hash algorithms, hash value is computed and corresponding - * hash node property is set, for example: - * - * Input component image node structure: - * - * o image@1 (at image_noffset) - * | - data = [binary data] - * o hash@1 - * |- algo = "sha1" - * - * Output component image node structure: - * - * o image@1 (at image_noffset) - * | - data = [binary data] - * o hash@1 - * |- algo = "sha1" - * |- value = sha1(data) - * - * returns: - * 0 on sucess - * <0 on failure - */ -int fit_image_set_hashes(void *fit, int image_noffset) -{ - const void *data; - size_t size; - char *algo; - uint8_t value[FIT_MAX_HASH_LEN]; - int value_len; - int noffset; - int ndepth; - - /* Get image data and data length */ - if (fit_image_get_data(fit, image_noffset, &data, &size)) { - printf("Can't get image data/size\n"); - return -1; - } - - /* 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 */ - - /* - * 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) { - /* Not a hash subnode, skip it */ - continue; - } - - if (fit_image_hash_get_algo(fit, noffset, &algo)) { - printf("Can't get hash algo property for " - "'%s' hash node in '%s' image node\n", - fit_get_name(fit, noffset, NULL), - fit_get_name(fit, image_noffset, NULL)); - return -1; - } - - if (calculate_hash(data, size, algo, value, - &value_len)) { - printf("Unsupported hash algorithm (%s) for " - "'%s' hash node in '%s' image node\n", - algo, fit_get_name(fit, noffset, NULL), - fit_get_name(fit, image_noffset, - NULL)); - return -1; - } - - if (fit_image_hash_set_value(fit, noffset, value, - value_len)) { - printf("Can't set hash value for " - "'%s' hash node in '%s' image node\n", - fit_get_name(fit, noffset, NULL), - fit_get_name(fit, image_noffset, NULL)); - return -1; - } - } - } - - return 0; -} - -/** - * fit_image_hash_set_value - set hash value in requested has node - * @fit: pointer to the FIT format image header - * @noffset: hash node offset - * @value: hash value to be set - * @value_len: hash value length - * - * fit_image_hash_set_value() attempts to set hash value in a node at offset - * given and returns operation status to the caller. - * - * returns - * 0, on success - * -1, on failure - */ -int fit_image_hash_set_value(void *fit, int noffset, uint8_t *value, - int value_len) -{ - int ret; - - ret = fdt_setprop(fit, noffset, FIT_VALUE_PROP, value, value_len); - if (ret) { - printf("Can't set hash '%s' property for '%s' node(%s)\n", - FIT_VALUE_PROP, fit_get_name(fit, noffset, NULL), - fdt_strerror(ret)); - return -1; - } - - return 0; -} -#endif /* USE_HOSTCC */ - -/** - * fit_image_check_hashes - verify data intergity - * @fit: pointer to the FIT format image header - * @image_noffset: component image node offset - * - * fit_image_check_hashes() 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_check_hashes(const void *fit, int image_noffset) -{ - const void *data; - size_t size; - char *algo; - uint8_t *fit_value; - int fit_value_len; -#ifndef USE_HOSTCC - int ignore; -#endif - uint8_t value[FIT_MAX_HASH_LEN]; - int value_len; - int noffset; - int ndepth; - char *err_msg = ""; - - /* Get image data and data length */ - if (fit_image_get_data(fit, image_noffset, &data, &size)) { - printf("Can't get image data/size\n"); - return 0; - } - - /* 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 */ - - /* - * 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) - continue; - - if (fit_image_hash_get_algo(fit, noffset, &algo)) { - err_msg = " error!\nCan't get hash algo " - "property"; - goto error; - } - printf("%s", algo); - -#ifndef USE_HOSTCC - fit_image_hash_get_ignore(fit, noffset, &ignore); - if (ignore) { - printf("-skipped "); - continue; - } -#endif - - if (fit_image_hash_get_value(fit, noffset, &fit_value, - &fit_value_len)) { - err_msg = " error!\nCan't get hash value " - "property"; - goto error; - } - - if (calculate_hash(data, size, algo, value, - &value_len)) { - err_msg = " error!\n" - "Unsupported hash algorithm"; - goto error; - } - - if (value_len != fit_value_len) { - err_msg = " error !\nBad hash value len"; - goto error; - } else if (memcmp(value, fit_value, value_len) != 0) { - err_msg = " error!\nBad hash value"; - goto error; - } - printf("+ "); - } - } - - if (noffset == -FDT_ERR_TRUNCATED || noffset == -FDT_ERR_BADSTRUCTURE) { - err_msg = " error!\nCorrupted or truncated tree"; - goto error; - } - - return 1; - -error: - printf("%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_check_hashes - verify data intergity for all images - * @fit: pointer to the FIT format image header - * - * fit_all_image_check_hashes() 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_check_hashes(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_check_hashes(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_check_hashes(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 */ -#endif /* CONFIG_FIT */ |