1 /* Ported to busybox from mtd-utils.
3 * Licensed under GPLv2, see file LICENSE in this source tree.
6 //config:config UBIATTACH
7 //config: bool "ubiattach"
9 //config: select PLATFORM_LINUX
11 //config: Attach MTD device to an UBI device.
13 //config:config UBIDETACH
14 //config: bool "ubidetach"
16 //config: select PLATFORM_LINUX
18 //config: Detach MTD device from an UBI device.
20 //config:config UBIMKVOL
21 //config: bool "ubimkvol"
23 //config: select PLATFORM_LINUX
25 //config: Create a UBI volume.
27 //config:config UBIRMVOL
28 //config: bool "ubirmvol"
30 //config: select PLATFORM_LINUX
32 //config: Delete a UBI volume.
34 //config:config UBIRSVOL
35 //config: bool "ubirsvol"
37 //config: select PLATFORM_LINUX
39 //config: Resize a UBI volume.
41 //config:config UBIUPDATEVOL
42 //config: bool "ubiupdatevol"
44 //config: select PLATFORM_LINUX
46 //config: Update a UBI volume.
48 //applet:IF_UBIATTACH(APPLET_ODDNAME(ubiattach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiattach))
49 //applet:IF_UBIDETACH(APPLET_ODDNAME(ubidetach, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubidetach))
50 //applet:IF_UBIMKVOL(APPLET_ODDNAME(ubimkvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubimkvol))
51 //applet:IF_UBIRMVOL(APPLET_ODDNAME(ubirmvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirmvol))
52 //applet:IF_UBIRSVOL(APPLET_ODDNAME(ubirsvol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubirsvol))
53 //applet:IF_UBIUPDATEVOL(APPLET_ODDNAME(ubiupdatevol, ubi_tools, BB_DIR_USR_SBIN, BB_SUID_DROP, ubiupdatevol))
55 //kbuild:lib-$(CONFIG_UBIATTACH) += ubi_tools.o
56 //kbuild:lib-$(CONFIG_UBIDETACH) += ubi_tools.o
57 //kbuild:lib-$(CONFIG_UBIMKVOL) += ubi_tools.o
58 //kbuild:lib-$(CONFIG_UBIRMVOL) += ubi_tools.o
59 //kbuild:lib-$(CONFIG_UBIRSVOL) += ubi_tools.o
60 //kbuild:lib-$(CONFIG_UBIUPDATEVOL) += ubi_tools.o
63 #include <mtd/ubi-user.h>
65 #define OPTION_M (1 << 0)
66 #define OPTION_D (1 << 1)
67 #define OPTION_n (1 << 2)
68 #define OPTION_N (1 << 3)
69 #define OPTION_s (1 << 4)
70 #define OPTION_a (1 << 5)
71 #define OPTION_t (1 << 6)
73 #define do_attach (ENABLE_UBIATTACH && applet_name[3] == 'a')
74 #define do_detach (ENABLE_UBIDETACH && applet_name[3] == 'd')
75 #define do_mkvol (ENABLE_UBIMKVOL && applet_name[3] == 'm')
76 #define do_rmvol (ENABLE_UBIRMVOL && applet_name[4] == 'm')
77 #define do_rsvol (ENABLE_UBIRSVOL && applet_name[4] == 's')
78 #define do_update (ENABLE_UBIUPDATEVOL && applet_name[3] == 'u')
80 //usage:#define ubiattach_trivial_usage
81 //usage: "-m MTD_NUM [-d UBI_NUM] UBI_CTRL_DEV"
82 //usage:#define ubiattach_full_usage "\n\n"
83 //usage: "Attach MTD device to UBI\n"
84 //usage: "\n -m MTD_NUM MTD device number to attach"
85 //usage: "\n -d UBI_NUM UBI device number to assign"
87 //usage:#define ubidetach_trivial_usage
88 //usage: "-d UBI_NUM UBI_CTRL_DEV"
89 //usage:#define ubidetach_full_usage "\n\n"
90 //usage: "Detach MTD device from UBI\n"
91 //usage: "\n -d UBI_NUM UBI device number"
93 //usage:#define ubimkvol_trivial_usage
94 //usage: "UBI_DEVICE -N NAME -s SIZE"
95 //usage:#define ubimkvol_full_usage "\n\n"
96 //usage: "Create UBI volume\n"
97 //usage: "\n -a ALIGNMENT Volume alignment (default 1)"
98 //usage: "\n -n VOLID Volume ID, if not specified, it"
99 //usage: "\n will be assigned automatically"
100 //usage: "\n -N NAME Volume name"
101 //usage: "\n -s SIZE Size in bytes"
102 //usage: "\n -t TYPE Volume type (static|dynamic)"
104 //usage:#define ubirmvol_trivial_usage
105 //usage: "UBI_DEVICE -n VOLID"
106 //usage:#define ubirmvol_full_usage "\n\n"
107 //usage: "Remove UBI volume\n"
108 //usage: "\n -n VOLID Volume ID"
110 //usage:#define ubirsvol_trivial_usage
111 //usage: "UBI_DEVICE -n VOLID -s SIZE"
112 //usage:#define ubirsvol_full_usage "\n\n"
113 //usage: "Resize UBI volume\n"
114 //usage: "\n -n VOLID Volume ID to resize"
115 //usage: "\n -s SIZE Size in bytes"
117 //usage:#define ubiupdatevol_trivial_usage
118 //usage: "UBI_DEVICE [IMG_FILE]"
119 //usage:#define ubiupdatevol_full_usage "\n\n"
120 //usage: "Update UBI volume\n"
121 //usage: "\n -t Truncate UBI volume"
122 //usage: "\n -s SIZE Bytes in input (if reading stdin)"
125 int ubi_tools_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
126 int ubi_tools_main(int argc UNUSED_PARAM, char **argv)
133 int dev_num = UBI_DEV_NUM_AUTO;
134 int vol_id = UBI_VOL_NUM_AUTO;
135 char *vol_name = NULL;
140 opt_complementary = "-1:m+:d+:n+:s+:a+";
141 opts = getopt32(argv, "m:d:n:N:s:a:t::",
142 &mtd_num, &dev_num, &vol_id,
143 &vol_name, &size_bytes, &alignment, &type
145 ubi_ctrl = argv[optind];
147 fd = xopen(ubi_ctrl, O_RDWR);
148 //xfstat(fd, &st, ubi_ctrl);
149 //if (!S_ISCHR(st.st_mode))
150 // bb_error_msg_and_die("%s: not a char device", ubi_ctrl);
153 struct ubi_attach_req req;
154 if (!(opts & OPTION_M))
155 bb_error_msg_and_die("%s device not specified", "MTD");
157 memset(&req, 0, sizeof(req));
158 req.mtd_num = mtd_num;
159 req.ubi_num = dev_num;
161 xioctl(fd, UBI_IOCATT, &req);
164 if (!(opts & OPTION_D))
165 bb_error_msg_and_die("%s device not specified", "UBI");
167 xioctl(fd, UBI_IOCDET, &dev_num);
170 struct ubi_mkvol_req req;
172 if (!(opts & OPTION_s))
173 bb_error_msg_and_die("%s size not specified", "UBI");
174 if (!(opts & OPTION_N))
175 bb_error_msg_and_die("%s name not specified", "UBI");
176 vol_name_len = strlen(vol_name);
177 if (vol_name_len > UBI_MAX_VOLUME_NAME)
178 bb_error_msg_and_die("%s volume name too long", "UBI");
180 memset(&req, 0, sizeof(req));
182 if ((opts & OPTION_t) && type) {
184 req.vol_type = UBI_STATIC_VOLUME;
186 req.vol_type = UBI_DYNAMIC_VOLUME;
188 req.vol_type = UBI_DYNAMIC_VOLUME;
190 req.alignment = alignment;
191 req.bytes = size_bytes;
192 strncpy(req.name, vol_name, UBI_MAX_VOLUME_NAME);
193 req.name_len = vol_name_len;
195 xioctl(fd, UBI_IOCMKVOL, &req);
198 if (!(opts & OPTION_n))
199 bb_error_msg_and_die("%s volume id not specified", "UBI");
201 xioctl(fd, UBI_IOCRMVOL, &vol_id);
204 struct ubi_rsvol_req req;
205 if (!(opts & OPTION_s))
206 bb_error_msg_and_die("%s size not specified", "UBI");
207 if (!(opts & OPTION_n))
208 bb_error_msg_and_die("%s volume id not specified", "UBI");
210 memset(&req, 0, sizeof(req));
211 req.bytes = size_bytes;
214 xioctl(fd, UBI_IOCRSVOL, &req);
219 if (opts & OPTION_t) {
220 // truncate the volume by starting an update for size 0
222 xioctl(fd, UBI_IOCVOLUP, &bytes);
226 char buf[sizeof("/sys/class/ubi/ubi%d_%d/usable_eb_size") + 2 * sizeof(int)*3];
228 unsigned ubinum, volnum;
233 // Make assumption that device not is in normal format.
234 // Removes need for scanning sysfs tree as full libubi does
235 if (sscanf(ubi_ctrl, "/dev/ubi%u_%u", &ubinum, &volnum) != 2)
236 bb_error_msg_and_die("%s volume node not in correct format", "UBI");
238 sprintf(buf, "/sys/class/ubi/ubi%u_%u/usable_eb_size", ubinum, volnum);
239 if (open_read_close(buf, buf, sizeof(buf)) <= 0)
240 bb_error_msg_and_die("%s could not get LEB size", "UBI");
241 if (sscanf(buf, "%u", &leb_size) != 1)
242 bb_error_msg_and_die("%s could not get LEB size", "UBI");
244 if (opts & OPTION_s) {
249 xstat(argv[optind+1], &st);
250 size_bytes = st.st_size;
251 input_fd = xopen(argv[optind+1], O_RDONLY);
255 xioctl(fd, UBI_IOCVOLUP, &bytes);
257 input_data = xmalloc(leb_size);
258 while ((len = full_read(input_fd, input_data, leb_size)) > 0) {
259 xwrite(fd, input_data, len);
262 bb_error_msg_and_die("%s volume update failed", "UBI");
263 if (ENABLE_FEATURE_CLEAN_UP)
268 if (ENABLE_FEATURE_CLEAN_UP)