diff options
Diffstat (limited to 'cmd/zfs.c')
| -rw-r--r-- | cmd/zfs.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/cmd/zfs.c b/cmd/zfs.c new file mode 100644 index 00000000000..6ef1b56ab10 --- /dev/null +++ b/cmd/zfs.c @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * + * ZFS filesystem porting to Uboot by + * Jorgen Lundman <lundman at lundman.net> + * + * zfsfs support + * made from existing GRUB Sources by Sun, GNU and others. + */ + +#include <common.h> +#include <part.h> +#include <config.h> +#include <command.h> +#include <env.h> +#include <image.h> +#include <linux/ctype.h> +#include <asm/byteorder.h> +#include <zfs_common.h> +#include <linux/stat.h> +#include <malloc.h> + +#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE) +#include <usb.h> +#endif + +#if !CONFIG_IS_ENABLED(DOS_PARTITION) && !CONFIG_IS_ENABLED(EFI_PARTITION) +#error DOS or EFI partition support must be selected +#endif + +#define DOS_PART_MAGIC_OFFSET 0x1fe +#define DOS_FS_TYPE_OFFSET 0x36 +#define DOS_FS32_TYPE_OFFSET 0x52 + +static int do_zfs_load(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + char *filename = NULL; + int dev; + int part; + ulong addr = 0; + struct disk_partition info; + struct blk_desc *dev_desc; + unsigned long count; + const char *addr_str; + struct zfs_file zfile; + struct device_s vdev; + + if (argc < 3) + return CMD_RET_USAGE; + + count = 0; + addr = hextoul(argv[3], NULL); + filename = env_get("bootfile"); + switch (argc) { + case 3: + addr_str = env_get("loadaddr"); + if (addr_str != NULL) + addr = hextoul(addr_str, NULL); + else + addr = CONFIG_SYS_LOAD_ADDR; + + break; + case 4: + break; + case 5: + filename = argv[4]; + break; + case 6: + filename = argv[4]; + count = hextoul(argv[5], NULL); + break; + + default: + return cmd_usage(cmdtp); + } + + if (!filename) { + puts("** No boot file defined **\n"); + return 1; + } + + part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1); + if (part < 0) + return 1; + + dev = dev_desc->devnum; + printf("Loading file \"%s\" from %s device %d%c%c\n", + filename, argv[1], dev, + part ? ':' : ' ', part ? part + '0' : ' '); + + zfs_set_blk_dev(dev_desc, &info); + vdev.part_length = info.size; + + memset(&zfile, 0, sizeof(zfile)); + zfile.device = &vdev; + if (zfs_open(&zfile, filename)) { + printf("** File not found %s **\n", filename); + return 1; + } + + if ((count < zfile.size) && (count != 0)) + zfile.size = (uint64_t)count; + + if (zfs_read(&zfile, (char *)addr, zfile.size) != zfile.size) { + printf("** Unable to read \"%s\" from %s %d:%d **\n", + filename, argv[1], dev, part); + zfs_close(&zfile); + return 1; + } + + zfs_close(&zfile); + + /* Loading ok, update default load address */ + image_load_addr = addr; + + printf("%llu bytes read\n", zfile.size); + env_set_hex("filesize", zfile.size); + + return 0; +} + + +int zfs_print(const char *entry, const struct zfs_dirhook_info *data) +{ + printf("%s %s\n", + data->dir ? "<DIR> " : " ", + entry); + return 0; /* 0 continue, 1 stop */ +} + + +static int do_zfs_ls(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + const char *filename = "/"; + int part; + struct blk_desc *dev_desc; + struct disk_partition info; + struct device_s vdev; + + if (argc < 2) + return cmd_usage(cmdtp); + + if (argc == 4) + filename = argv[3]; + + part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1); + if (part < 0) + return 1; + + zfs_set_blk_dev(dev_desc, &info); + vdev.part_length = info.size; + + zfs_ls(&vdev, filename, + zfs_print); + + return 0; +} + + +U_BOOT_CMD(zfsls, 4, 1, do_zfs_ls, + "list files in a directory (default /)", + "<interface> <dev[:part]> [directory]\n" + " - list files from 'dev' on 'interface' in a '/DATASET/@/$dir/'"); + +U_BOOT_CMD(zfsload, 6, 0, do_zfs_load, + "load binary file from a ZFS filesystem", + "<interface> <dev[:part]> [addr] [filename] [bytes]\n" + " - load binary file '/DATASET/@/$dir/$file' from 'dev' on 'interface'\n" + " to address 'addr' from ZFS filesystem"); |