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1 /*
2 *
3 * ZFS filesystem porting to Uboot by
4 * Jorgen Lundman <lundman at lundman.net>
5 *
6 * zfsfs support
7 * made from existing GRUB Sources by Sun, GNU and others.
8 *
9 * SPDX-License-Identifier: GPL-2.0+
10 */
11
12 #include <common.h>
13 #include <part.h>
14 #include <config.h>
15 #include <command.h>
16 #include <image.h>
17 #include <linux/ctype.h>
18 #include <asm/byteorder.h>
19 #include <zfs_common.h>
20 #include <linux/stat.h>
21 #include <malloc.h>
22
23 #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
24 #include <usb.h>
25 #endif
26
27 #if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
28 #error DOS or EFI partition support must be selected
29 #endif
30
31 #define DOS_PART_MAGIC_OFFSET 0x1fe
32 #define DOS_FS_TYPE_OFFSET 0x36
33 #define DOS_FS32_TYPE_OFFSET 0x52
34
35 static int do_zfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
36 {
37 char *filename = NULL;
38 int dev;
39 int part;
40 ulong addr = 0;
41 disk_partition_t info;
42 struct blk_desc *dev_desc;
43 char buf[12];
44 unsigned long count;
45 const char *addr_str;
46 struct zfs_file zfile;
47 struct device_s vdev;
48
49 if (argc < 3)
50 return CMD_RET_USAGE;
51
52 count = 0;
53 addr = simple_strtoul(argv[3], NULL, 16);
54 filename = getenv("bootfile");
55 switch (argc) {
56 case 3:
57 addr_str = getenv("loadaddr");
58 if (addr_str != NULL)
59 addr = simple_strtoul(addr_str, NULL, 16);
60 else
61 addr = CONFIG_SYS_LOAD_ADDR;
62
63 break;
64 case 4:
65 break;
66 case 5:
67 filename = argv[4];
68 break;
69 case 6:
70 filename = argv[4];
71 count = simple_strtoul(argv[5], NULL, 16);
72 break;
73
74 default:
75 return cmd_usage(cmdtp);
76 }
77
78 if (!filename) {
79 puts("** No boot file defined **\n");
80 return 1;
81 }
82
83 part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
84 if (part < 0)
85 return 1;
86
87 dev = dev_desc->devnum;
88 printf("Loading file \"%s\" from %s device %d%c%c\n",
89 filename, argv[1], dev,
90 part ? ':' : ' ', part ? part + '0' : ' ');
91
92 zfs_set_blk_dev(dev_desc, &info);
93 vdev.part_length = info.size;
94
95 memset(&zfile, 0, sizeof(zfile));
96 zfile.device = &vdev;
97 if (zfs_open(&zfile, filename)) {
98 printf("** File not found %s **\n", filename);
99 return 1;
100 }
101
102 if ((count < zfile.size) && (count != 0))
103 zfile.size = (uint64_t)count;
104
105 if (zfs_read(&zfile, (char *)addr, zfile.size) != zfile.size) {
106 printf("** Unable to read \"%s\" from %s %d:%d **\n",
107 filename, argv[1], dev, part);
108 zfs_close(&zfile);
109 return 1;
110 }
111
112 zfs_close(&zfile);
113
114 /* Loading ok, update default load address */
115 load_addr = addr;
116
117 printf("%llu bytes read\n", zfile.size);
118 setenv_hex("filesize", zfile.size);
119
120 return 0;
121 }
122
123
124 int zfs_print(const char *entry, const struct zfs_dirhook_info *data)
125 {
126 printf("%s %s\n",
127 data->dir ? "<DIR> " : " ",
128 entry);
129 return 0; /* 0 continue, 1 stop */
130 }
131
132
133
134 static int do_zfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
135 {
136 const char *filename = "/";
137 int part;
138 struct blk_desc *dev_desc;
139 disk_partition_t info;
140 struct device_s vdev;
141
142 if (argc < 2)
143 return cmd_usage(cmdtp);
144
145 if (argc == 4)
146 filename = argv[3];
147
148 part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
149 if (part < 0)
150 return 1;
151
152 zfs_set_blk_dev(dev_desc, &info);
153 vdev.part_length = info.size;
154
155 zfs_ls(&vdev, filename,
156 zfs_print);
157
158 return 0;
159 }
160
161
162 U_BOOT_CMD(zfsls, 4, 1, do_zfs_ls,
163 "list files in a directory (default /)",
164 "<interface> <dev[:part]> [directory]\n"
165 " - list files from 'dev' on 'interface' in a '/DATASET/@/$dir/'");
166
167 U_BOOT_CMD(zfsload, 6, 0, do_zfs_load,
168 "load binary file from a ZFS filesystem",
169 "<interface> <dev[:part]> [addr] [filename] [bytes]\n"
170 " - load binary file '/DATASET/@/$dir/$file' from 'dev' on 'interface'\n"
171 " to address 'addr' from ZFS filesystem");