Example #1
0
static inline int mmc_offset_try_partition(const char *str, s64 *val)
{
	disk_partition_t info;
	struct blk_desc *desc;
	int len, i, ret;

	ret = blk_get_device_by_str("mmc", STR(CONFIG_SYS_MMC_ENV_DEV), &desc);
	if (ret < 0)
		return (ret);

	for (i = 1;;i++) {
		ret = part_get_info(desc, i, &info);
		if (ret < 0)
			return ret;

		if (!strncmp((const char *)info.name, str, sizeof(str)))
			break;
	}

	/* round up to info.blksz */
	len = (CONFIG_ENV_SIZE + info.blksz - 1) & ~(info.blksz - 1);

	/* use the top of the partion for the environment */
	*val = (info.start + info.size - 1) - len / info.blksz;

	return 0;
}
Example #2
0
int spl_load_image_ext(struct spl_image_info *spl_image,
		       struct blk_desc *block_dev, int partition,
		       const char *filename)
{
	s32 err;
	struct image_header *header;
	loff_t filelen, actlen;
	disk_partition_t part_info = {};

	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
						sizeof(struct image_header));

	if (part_get_info(block_dev, partition, &part_info)) {
		printf("spl: no partition table found\n");
		return -1;
	}

	ext4fs_set_blk_dev(block_dev, &part_info);

	err = ext4fs_mount(0);
	if (!err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
		printf("%s: ext4fs mount err - %d\n", __func__, err);
#endif
		goto end;
	}

	err = ext4fs_open(filename, &filelen);
	if (err < 0) {
		puts("spl: ext4fs_open failed\n");
		goto end;
	}
	err = ext4fs_read((char *)header, 0, sizeof(struct image_header), &actlen);
	if (err < 0) {
		puts("spl: ext4fs_read failed\n");
		goto end;
	}

	err = spl_parse_image_header(spl_image, header);
	if (err < 0) {
		puts("spl: ext: failed to parse image header\n");
		goto end;
	}

	err = ext4fs_read((char *)spl_image->load_addr, 0, filelen, &actlen);

end:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
	if (err < 0)
		printf("%s: error reading image %s, err - %d\n",
		       __func__, filename, err);
#endif

	return err < 0;
}
Example #3
0
int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
			     struct blk_desc **dev_desc,
			     disk_partition_t *info, int allow_whole_dev)
{
	int ret = -1;
	const char *part_str;
	char *dup_str = NULL;
	const char *dev_str;
	int dev;
	char *ep;
	int p;
	int part;
	disk_partition_t tmpinfo;

#ifdef CONFIG_SANDBOX
	/*
	 * Special-case a pseudo block device "hostfs", to allow access to the
	 * host's own filesystem.
	 */
	if (0 == strcmp(ifname, "hostfs")) {
		*dev_desc = NULL;
		info->start = 0;
		info->size = 0;
		info->blksz = 0;
		info->bootable = 0;
		strcpy((char *)info->type, BOOT_PART_TYPE);
		strcpy((char *)info->name, "Sandbox host");
#ifdef CONFIG_PARTITION_UUIDS
		info->uuid[0] = 0;
#endif
#ifdef CONFIG_PARTITION_TYPE_GUID
		info->type_guid[0] = 0;
#endif

		return 0;
	}
#endif

#ifdef CONFIG_CMD_UBIFS
	/*
	 * Special-case ubi, ubi goes through a mtd, rathen then through
	 * a regular block device.
	 */
	if (0 == strcmp(ifname, "ubi")) {
		if (!ubifs_is_mounted()) {
			printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
			return -1;
		}

		*dev_desc = NULL;
		memset(info, 0, sizeof(*info));
		strcpy((char *)info->type, BOOT_PART_TYPE);
		strcpy((char *)info->name, "UBI");
#ifdef CONFIG_PARTITION_UUIDS
		info->uuid[0] = 0;
#endif
		return 0;
	}
#endif

	/* If no dev_part_str, use bootdevice environment variable */
	if (!dev_part_str || !strlen(dev_part_str) ||
	    !strcmp(dev_part_str, "-"))
		dev_part_str = getenv("bootdevice");

	/* If still no dev_part_str, it's an error */
	if (!dev_part_str) {
		printf("** No device specified **\n");
		goto cleanup;
	}

	/* Separate device and partition ID specification */
	part_str = strchr(dev_part_str, ':');
	if (part_str) {
		dup_str = strdup(dev_part_str);
		dup_str[part_str - dev_part_str] = 0;
		dev_str = dup_str;
		part_str++;
	} else {
		dev_str = dev_part_str;
	}

	/* Look up the device */
	dev = blk_get_device_by_str(ifname, dev_str, dev_desc);
	if (dev < 0)
		goto cleanup;

	/* Convert partition ID string to number */
	if (!part_str || !*part_str) {
		part = PART_UNSPECIFIED;
	} else if (!strcmp(part_str, "auto")) {
		part = PART_AUTO;
	} else {
		/* Something specified -> use exactly that */
		part = (int)simple_strtoul(part_str, &ep, 16);
		/*
		 * Less than whole string converted,
		 * or request for whole device, but caller requires partition.
		 */
		if (*ep || (part == 0 && !allow_whole_dev)) {
			printf("** Bad partition specification %s %s **\n",
			    ifname, dev_part_str);
			goto cleanup;
		}
	}

	/*
	 * No partition table on device,
	 * or user requested partition 0 (entire device).
	 */
	if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
	    (part == 0)) {
		if (!(*dev_desc)->lba) {
			printf("** Bad device size - %s %s **\n", ifname,
			       dev_str);
			goto cleanup;
		}

		/*
		 * If user specified a partition ID other than 0,
		 * or the calling command only accepts partitions,
		 * it's an error.
		 */
		if ((part > 0) || (!allow_whole_dev)) {
			printf("** No partition table - %s %s **\n", ifname,
			       dev_str);
			goto cleanup;
		}

		(*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);

		info->start = 0;
		info->size = (*dev_desc)->lba;
		info->blksz = (*dev_desc)->blksz;
		info->bootable = 0;
		strcpy((char *)info->type, BOOT_PART_TYPE);
		strcpy((char *)info->name, "Whole Disk");
#ifdef CONFIG_PARTITION_UUIDS
		info->uuid[0] = 0;
#endif
#ifdef CONFIG_PARTITION_TYPE_GUID
		info->type_guid[0] = 0;
#endif

		ret = 0;
		goto cleanup;
	}

	/*
	 * Now there's known to be a partition table,
	 * not specifying a partition means to pick partition 1.
	 */
	if (part == PART_UNSPECIFIED)
		part = 1;

	/*
	 * If user didn't specify a partition number, or did specify something
	 * other than "auto", use that partition number directly.
	 */
	if (part != PART_AUTO) {
		ret = part_get_info(*dev_desc, part, info);
		if (ret) {
			printf("** Invalid partition %d **\n", part);
			goto cleanup;
		}
	} else {
		/*
		 * Find the first bootable partition.
		 * If none are bootable, fall back to the first valid partition.
		 */
		part = 0;
		for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
			ret = part_get_info(*dev_desc, p, info);
			if (ret)
				continue;

			/*
			 * First valid partition, or new better partition?
			 * If so, save partition ID.
			 */
			if (!part || info->bootable)
				part = p;

			/* Best possible partition? Stop searching. */
			if (info->bootable)
				break;

			/*
			 * We now need to search further for best possible.
			 * If we what we just queried was the best so far,
			 * save the info since we over-write it next loop.
			 */
			if (part == p)
				tmpinfo = *info;
		}
		/* If we found any acceptable partition */
		if (part) {
			/*
			 * If we searched all possible partition IDs,
			 * return the first valid partition we found.
			 */
			if (p == MAX_SEARCH_PARTITIONS + 1)
				*info = tmpinfo;
		} else {
			printf("** No valid partitions found **\n");
			ret = -1;
			goto cleanup;
		}
	}
	if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
		printf("** Invalid partition type \"%.32s\""
			" (expect \"" BOOT_PART_TYPE "\")\n",
			info->type);
		ret  = -1;
		goto cleanup;
	}

	(*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);

	ret = part;
	goto cleanup;

cleanup:
	free(dup_str);
	return ret;
}
Example #4
0
static efi_status_t EFIAPI efi_file_getinfo(struct efi_file_handle *file,
					    const efi_guid_t *info_type,
					    efi_uintn_t *buffer_size,
					    void *buffer)
{
	struct file_handle *fh = to_fh(file);
	efi_status_t ret = EFI_SUCCESS;

	EFI_ENTRY("%p, %p, %p, %p", file, info_type, buffer_size, buffer);

	if (!guidcmp(info_type, &efi_file_info_guid)) {
		struct efi_file_info *info = buffer;
		char *filename = basename(fh);
		unsigned int required_size;
		loff_t file_size;

		/* check buffer size: */
		required_size = sizeof(*info) + 2 * (strlen(filename) + 1);
		if (*buffer_size < required_size) {
			*buffer_size = required_size;
			ret = EFI_BUFFER_TOO_SMALL;
			goto error;
		}

		if (set_blk_dev(fh)) {
			ret = EFI_DEVICE_ERROR;
			goto error;
		}

		if (fs_size(fh->path, &file_size)) {
			ret = EFI_DEVICE_ERROR;
			goto error;
		}

		memset(info, 0, required_size);

		info->size = required_size;
		info->file_size = file_size;
		info->physical_size = file_size;

		if (fh->isdir)
			info->attribute |= EFI_FILE_DIRECTORY;

		ascii2unicode((u16 *)info->file_name, filename);
	} else if (!guidcmp(info_type, &efi_file_system_info_guid)) {
		struct efi_file_system_info *info = buffer;
		disk_partition_t part;
		efi_uintn_t required_size;
		int r;

		if (fh->fs->part >= 1)
			r = part_get_info(fh->fs->desc, fh->fs->part, &part);
		else
			r = part_get_info_whole_disk(fh->fs->desc, &part);
		if (r < 0) {
			ret = EFI_DEVICE_ERROR;
			goto error;
		}
		required_size = sizeof(info) + 2 *
				(strlen((const char *)part.name) + 1);
		if (*buffer_size < required_size) {
			*buffer_size = required_size;
			ret = EFI_BUFFER_TOO_SMALL;
			goto error;
		}

		memset(info, 0, required_size);

		info->size = required_size;
		info->read_only = true;
		info->volume_size = part.size * part.blksz;
		info->free_space = 0;
		info->block_size = part.blksz;
		/*
		 * TODO: The volume label is not available in U-Boot.
		 * Use the partition name as substitute.
		 */
		ascii2unicode((u16 *)info->volume_label,
			      (const char *)part.name);
	} else {
		ret = EFI_UNSUPPORTED;
	}

error:
	return EFI_EXIT(ret);
}
Example #5
0
int do_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	char *ep;
	struct blk_desc *dev_desc = NULL;
	int dev;
	int part = 0;
	disk_partition_t part_info;
	ulong offset = 0u;
	ulong limit = 0u;
	void *addr;
	uint blk;
	uint cnt;

	if (argc != 6) {
		cmd_usage(cmdtp);
		return 1;
	}

	dev = (int)simple_strtoul(argv[2], &ep, 16);
	if (*ep) {
		if (*ep != ':') {
			printf("Invalid block device %s\n", argv[2]);
			return 1;
		}
		part = (int)simple_strtoul(++ep, NULL, 16);
	}

	dev_desc = blk_get_dev(argv[1], dev);
	if (dev_desc == NULL) {
		printf("Block device %s %d not supported\n", argv[1], dev);
		return 1;
	}

	addr = (void *)simple_strtoul(argv[3], NULL, 16);
	blk = simple_strtoul(argv[4], NULL, 16);
	cnt = simple_strtoul(argv[5], NULL, 16);

	if (part != 0) {
		if (part_get_info(dev_desc, part, &part_info)) {
			printf("Cannot find partition %d\n", part);
			return 1;
		}
		offset = part_info.start;
		limit = part_info.size;
	} else {
		/* Largest address not available in struct blk_desc. */
		limit = ~0;
	}

	if (cnt + blk > limit) {
		printf("Read out of range\n");
		return 1;
	}

	if (blk_dread(dev_desc, offset + blk, cnt, addr) != cnt) {
		printf("Error reading blocks\n");
		return 1;
	}

	return 0;
}
Example #6
0
int spl_load_image_ext_os(struct spl_image_info *spl_image,
			  struct blk_desc *block_dev, int partition)
{
	int err;
	__maybe_unused loff_t filelen, actlen;
	disk_partition_t part_info = {};
	__maybe_unused char *file;

	if (part_get_info(block_dev, partition, &part_info)) {
		printf("spl: no partition table found\n");
		return -1;
	}

	ext4fs_set_blk_dev(block_dev, &part_info);

	err = ext4fs_mount(0);
	if (!err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
		printf("%s: ext4fs mount err - %d\n", __func__, err);
#endif
		return -1;
	}
#if defined(CONFIG_SPL_ENV_SUPPORT)
	file = env_get("falcon_args_file");
	if (file) {
		err = ext4fs_open(file, &filelen);
		if (err < 0) {
			puts("spl: ext4fs_open failed\n");
			goto defaults;
		}
		err = ext4fs_read((void *)CONFIG_SYS_SPL_ARGS_ADDR, 0, filelen, &actlen);
		if (err < 0) {
			printf("spl: error reading image %s, err - %d, falling back to default\n",
			       file, err);
			goto defaults;
		}
		file = env_get("falcon_image_file");
		if (file) {
			err = spl_load_image_ext(spl_image, block_dev,
						 partition, file);
			if (err != 0) {
				puts("spl: falling back to default\n");
				goto defaults;
			}

			return 0;
		} else {
			puts("spl: falcon_image_file not set in environment, falling back to default\n");
		}
	} else {
		puts("spl: falcon_args_file not set in environment, falling back to default\n");
	}

defaults:
#endif

	err = ext4fs_open(CONFIG_SPL_FS_LOAD_ARGS_NAME, &filelen);
	if (err < 0)
		puts("spl: ext4fs_open failed\n");

	err = ext4fs_read((void *)CONFIG_SYS_SPL_ARGS_ADDR, 0, filelen, &actlen);
	if (err < 0) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
		printf("%s: error reading image %s, err - %d\n",
		       __func__, CONFIG_SPL_FS_LOAD_ARGS_NAME, err);
#endif
		return -1;
	}

	return spl_load_image_ext(spl_image, block_dev, partition,
			CONFIG_SPL_FS_LOAD_KERNEL_NAME);
}