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authorDenys Vlasenko <vda.linux@googlemail.com>2011-04-26 04:32:05 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2011-04-26 04:32:05 +0200
commitd1993f180cd4ba0992c559e7165ec4c220af4ca0 (patch)
tree2e588170d938e4ef5d79cca2c1da8b64b1247512 /miscutils/ubi_tools.c
parent0bfb9c2cf0e8b711634014e06d39b5f47c5a95c2 (diff)
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rename miscutils/ubi_attach_detach.c -> miscutils/ubi_tools.c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/ubi_tools.c')
-rw-r--r--miscutils/ubi_tools.c278
1 files changed, 278 insertions, 0 deletions
diff --git a/miscutils/ubi_tools.c b/miscutils/ubi_tools.c
new file mode 100644
index 000000000..fc7f38c5d
--- /dev/null
+++ b/miscutils/ubi_tools.c
@@ -0,0 +1,278 @@
1/* Ported to busybox from mtd-utils.
2 *
3 * Licensed under GPLv2, see file LICENSE in this source tree.
4 */
5
6//config:config UBIATTACH
7//config: bool "ubiattach"
8//config: default y
9//config: select PLATFORM_LINUX
10//config: help
11//config: Attach MTD device to an UBI device.
12//config:
13//config:config UBIDETACH
14//config: bool "ubidetach"
15//config: default y
16//config: select PLATFORM_LINUX
17//config: help
18//config: Detach MTD device from an UBI device.
19//config:
20//config:config UBIMKVOL
21//config: bool "ubimkvol"
22//config: default y
23//config: select PLATFORM_LINUX
24//config: help
25//config: Create a UBI volume.
26//config:
27//config:config UBIRMVOL
28//config: bool "ubirmvol"
29//config: default y
30//config: select PLATFORM_LINUX
31//config: help
32//config: Delete a UBI volume.
33//config:
34//config:config UBIRSVOL
35//config: bool "ubirsvol"
36//config: default y
37//config: select PLATFORM_LINUX
38//config: help
39//config: Resize a UBI volume.
40//config:
41//config:config UBIUPDATEVOL
42//config: bool "ubiupdatevol"
43//config: default y
44//config: select PLATFORM_LINUX
45//config: help
46//config: Update a UBI volume.
47
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))
54
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
61
62#include "libbb.h"
63#include <mtd/ubi-user.h>
64
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)
72
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')
79
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: "\nOptions:"
85//usage: "\n -m MTD_NUM MTD device number to attach"
86//usage: "\n -d UBI_NUM UBI device number to assign"
87//usage:
88//usage:#define ubidetach_trivial_usage
89//usage: "-d UBI_NUM UBI_CTRL_DEV"
90//usage:#define ubidetach_full_usage "\n\n"
91//usage: "Detach MTD device from UBI\n"
92//usage: "\nOptions:"
93//usage: "\n -d UBI_NUM UBI device number"
94//usage:
95//usage:#define ubimkvol_trivial_usage
96//usage: "UBI_DEVICE -N NAME -s SIZE"
97//usage:#define ubimkvol_full_usage "\n\n"
98//usage: "Create UBI volume\n"
99//usage: "\nOptions:"
100//usage: "\n -a ALIGNMENT Volume alignment (default 1)"
101//usage: "\n -n VOLID Volume ID, if not specified, it"
102//usage: "\n will be assigned automatically"
103//usage: "\n -N NAME Volume name"
104//usage: "\n -s SIZE Size in bytes"
105//usage: "\n -t TYPE Volume type (static|dynamic)"
106//usage:
107//usage:#define ubirmvol_trivial_usage
108//usage: "UBI_DEVICE -n VOLID"
109//usage:#define ubirmvol_full_usage "\n\n"
110//usage: "Remove UBI volume\n"
111//usage: "\nOptions:"
112//usage: "\n -n VOLID Volume ID"
113//usage:
114//usage:#define ubirsvol_trivial_usage
115//usage: "UBI_DEVICE -n VOLID -s SIZE"
116//usage:#define ubirsvol_full_usage "\n\n"
117//usage: "Resize UBI volume\n"
118//usage: "\nOptions:"
119//usage: "\n -n VOLID Volume ID to resize"
120//usage: "\n -s SIZE Size in bytes"
121//usage:
122//usage:#define ubiupdatevol_trivial_usage
123//usage: "UBI_DEVICE [IMG_FILE]"
124//usage:#define ubiupdatevol_full_usage "\n\n"
125//usage: "Update UBI volume\n"
126//usage: "\nOptions:"
127//usage: "\n -t Truncate UBI volume"
128//usage: "\n -s SIZE Bytes in input (if reading stdin)"
129
130
131int ubi_tools_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
132int ubi_tools_main(int argc UNUSED_PARAM, char **argv)
133{
134 unsigned opts;
135 char *ubi_ctrl;
136 //struct stat st;
137 int fd;
138 int mtd_num;
139 int dev_num = UBI_DEV_NUM_AUTO;
140 int vol_id = UBI_VOL_NUM_AUTO;
141 char *vol_name = NULL;
142 int size_bytes;
143 int alignment = 1;
144 char *type = NULL;
145
146 opt_complementary = "-1:m+:d+:n+:s+:a+";
147 opts = getopt32(argv, "m:d:n:N:s:a:t::",
148 &mtd_num, &dev_num, &vol_id,
149 &vol_name, &size_bytes, &alignment, &type
150 );
151 ubi_ctrl = argv[optind];
152
153 fd = xopen(ubi_ctrl, O_RDWR);
154 //xfstat(fd, &st, ubi_ctrl);
155 //if (!S_ISCHR(st.st_mode))
156 // bb_error_msg_and_die("%s: not a char device", ubi_ctrl);
157
158 if (do_attach) {
159 struct ubi_attach_req req;
160 if (!(opts & OPTION_M))
161 bb_error_msg_and_die("%s device not specified", "MTD");
162
163 memset(&req, 0, sizeof(req));
164 req.mtd_num = mtd_num;
165 req.ubi_num = dev_num;
166
167 xioctl(fd, UBI_IOCATT, &req);
168 } else
169 if (do_detach) {
170 if (!(opts & OPTION_D))
171 bb_error_msg_and_die("%s device not specified", "UBI");
172
173 xioctl(fd, UBI_IOCDET, &dev_num);
174 } else
175 if (do_mkvol) {
176 struct ubi_mkvol_req req;
177 int vol_name_len;
178 if (!(opts & OPTION_s))
179 bb_error_msg_and_die("%s size not specified", "UBI");
180 if (!(opts & OPTION_N))
181 bb_error_msg_and_die("%s name not specified", "UBI");
182 vol_name_len = strlen(vol_name);
183 if (vol_name_len > UBI_MAX_VOLUME_NAME)
184 bb_error_msg_and_die("%s volume name too long", "UBI");
185
186 memset(&req, 0, sizeof(req));
187 req.vol_id = vol_id;
188 if ((opts & OPTION_t) && type) {
189 if (type[0] == 's')
190 req.vol_type = UBI_STATIC_VOLUME;
191 else
192 req.vol_type = UBI_DYNAMIC_VOLUME;
193 } else {
194 req.vol_type = UBI_DYNAMIC_VOLUME;
195 }
196 req.alignment = alignment;
197 req.bytes = size_bytes;
198 strncpy(req.name, vol_name, UBI_MAX_VOLUME_NAME);
199 req.name_len = vol_name_len;
200
201 xioctl(fd, UBI_IOCMKVOL, &req);
202 } else
203 if (do_rmvol) {
204 if (!(opts & OPTION_n))
205 bb_error_msg_and_die("%s volume id not specified", "UBI");
206
207 xioctl(fd, UBI_IOCRMVOL, &vol_id);
208 } else
209 if (do_rsvol) {
210 struct ubi_rsvol_req req;
211 if (!(opts & OPTION_s))
212 bb_error_msg_and_die("%s size not specified", "UBI");
213 if (!(opts & OPTION_n))
214 bb_error_msg_and_die("%s volume id not specified", "UBI");
215
216 memset(&req, 0, sizeof(req));
217 req.bytes = size_bytes;
218 req.vol_id = vol_id;
219
220 xioctl(fd, UBI_IOCRSVOL, &req);
221 } else
222 if (do_update) {
223 long long bytes;
224
225 if (opts & OPTION_t) {
226 // truncate the volume by starting an update for size 0
227 bytes = 0;
228 xioctl(fd, UBI_IOCVOLUP, &bytes);
229 }
230 else {
231 struct stat st;
232 char buf[sizeof("/sys/class/ubi/ubi%d_%d/usable_eb_size") + 2 * sizeof(int)*3];
233 int input_fd;
234 unsigned ubinum, volnum;
235 unsigned leb_size;
236 ssize_t len;
237 char *input_data;
238
239 // Make assumption that device not is in normal format.
240 // Removes need for scanning sysfs tree as full libubi does
241 if (sscanf(ubi_ctrl, "/dev/ubi%u_%u", &ubinum, &volnum) != 2)
242 bb_error_msg_and_die("%s volume node not in correct format", "UBI");
243
244 sprintf(buf, "/sys/class/ubi/ubi%u_%u/usable_eb_size", ubinum, volnum);
245 if (open_read_close(buf, buf, sizeof(buf)) <= 0)
246 bb_error_msg_and_die("%s could not get LEB size", "UBI");
247 if (sscanf(buf, "%u", &leb_size) != 1)
248 bb_error_msg_and_die("%s could not get LEB size", "UBI");
249
250 if (opts & OPTION_s) {
251 input_fd = 0;
252 } else {
253 if (!argv[optind+1])
254 bb_show_usage();
255 xstat(argv[optind+1], &st);
256 size_bytes = st.st_size;
257 input_fd = xopen(argv[optind+1], O_RDONLY);
258 }
259
260 bytes = size_bytes;
261 xioctl(fd, UBI_IOCVOLUP, &bytes);
262
263 input_data = xmalloc(leb_size);
264 while ((len = full_read(input_fd, input_data, leb_size)) > 0) {
265 xwrite(fd, input_data, len);
266 }
267 if (len < 0)
268 bb_error_msg_and_die("%s volume update failed", "UBI");
269 if (ENABLE_FEATURE_CLEAN_UP)
270 close(input_fd);
271 }
272 }
273
274 if (ENABLE_FEATURE_CLEAN_UP)
275 close(fd);
276
277 return EXIT_SUCCESS;
278}
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