diff options
Diffstat (limited to 'common/image.c')
| -rw-r--r-- | common/image.c | 1265 |
1 files changed, 1261 insertions, 4 deletions
diff --git a/common/image.c b/common/image.c index 3911b2f..9278ea9 100644 --- a/common/image.c +++ b/common/image.c @@ -45,10 +45,13 @@ #include <rtc.h> #endif +#include <image.h> + #if defined(CONFIG_FIT) #include <fdt.h> #include <libfdt.h> #include <fdt_support.h> +#include <sha1.h> #endif #ifdef CONFIG_CMD_BDI @@ -62,9 +65,9 @@ static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag, ulong rd_addr, uint8_t arch, int verify); #else #include "mkimage.h" -#endif /* !USE_HOSTCC*/ - +#include <time.h> #include <image.h> +#endif /* !USE_HOSTCC*/ typedef struct table_entry { int id; /* as defined in image.h */ @@ -306,6 +309,18 @@ static void image_print_type (image_header_t *hdr) printf ("%s %s %s (%s)\n", arch, os, type, comp); } +/** + * __image_print_contents - prints out the contents of the legacy format image + * @hdr: pointer to the legacy format image header + * @p: pointer to prefix string + * + * __image_print_contents() formats a multi line legacy image contents description. + * The routine prints out all header fields followed by the size/offset data + * for MULTI/SCRIPT images. + * + * returns: + * no returned results + */ static void __image_print_contents (image_header_t *hdr, const char *p) { printf ("%sImage Name: %.*s\n", p, IH_NMLEN, image_get_name (hdr)); @@ -701,7 +716,7 @@ ulong genimg_get_image (ulong img_addr) break; #if defined(CONFIG_FIT) case IMAGE_FORMAT_FIT: - d_size = fdt_totalsize((void *)ram_addr) - h_size; + d_size = fit_get_size ((const void *)ram_addr) - h_size; debug (" FIT/FDT format image found at 0x%08lx, size 0x%08lx\n", ram_addr, d_size); break; @@ -1040,11 +1055,13 @@ int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base) return 0; } #endif /* CONFIG_PPC || CONFIG_M68K */ +#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) { @@ -1117,6 +1134,1246 @@ inline int fit_parse_subimage (const char *spec, ulong addr_curr, { 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 + */ +static void __fit_print_contents (const void *fit, const char *p) +{ + char *desc; + char *uname; + int images_noffset; + int confs_noffset; + int noffset; + int ndepth; + int count = 0; + int ret; +#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC) + time_t timestamp; +#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 defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC) + ret = fit_get_timestamp (fit, 0, ×tamp); + printf ("%sCreated: ", p); + if (ret) + printf ("unavailable\n"); + else + genimg_print_time (timestamp); +#endif + + /* 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); + } + } +} + +inline void fit_print_contents (const void *fit) +{ + __fit_print_contents (fit, " "); +} + +inline void fit_print_contents_noindent (const void *fit) +{ + __fit_print_contents (fit, ""); +} + +/** + * 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. + * + * 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) { + 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)) { + 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); + + 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; +} + +/** + * 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 (0, data, data_len); + *((uint32_t *)value) = cpu_to_uimage (*((uint32_t *)value)); + *value_len = 4; + } else if (strcmp (algo, "sha1") == 0 ) { + sha1_csum ((unsigned char *) data, data_len, + (unsigned char *) value); + *value_len = 20; + } else if (strcmp (algo, "md5") == 0 ) { + printf ("MD5 not supported\n"); + *value_len = 0; + } 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; + 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 = "Can't get hash algo property"; + goto error; + } + printf ("%s", algo); + + if (fit_image_hash_get_value (fit, noffset, &fit_value, + &fit_value_len)) { + err_msg = "Can't get hash value property"; + goto error; + } + + if (calculate_hash (data, size, algo, value, &value_len)) { + err_msg = "Unsupported hash algorithm"; + goto error; + } + + if (value_len != fit_value_len) { + err_msg = "Bad hash value len"; + goto error; + } else if (memcmp (value, fit_value, value_len) != 0) { + err_msg = "Bad hash value"; + goto error; + } + printf ("+ "); + } + } + + 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_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 defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC) + /* mandatory / node 'timestamp' property */ + if (fdt_getprop (fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) { + debug ("Wrong FIT format: no description\n"); + return 0; + } +#endif + + /* 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_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 + * @conf_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); +} #endif /* CONFIG_FIT */ -#endif /* !USE_HOSTCC */ |