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author | Denys Vlasenko <vda.linux@googlemail.com> | 2009-05-25 04:15:37 +0200 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2009-05-25 04:15:37 +0200 |
commit | bf2af9acb28ed6d8bbe351d669daaa140d0239f0 (patch) | |
tree | 3adba401caf5c25406f89ebe053a0d9dbb043b54 /miscutils | |
parent | 4f26c97b9a2fdf6d967eafa06c67d04e432840a1 (diff) | |
download | busybox-w32-bf2af9acb28ed6d8bbe351d669daaa140d0239f0.tar.gz busybox-w32-bf2af9acb28ed6d8bbe351d669daaa140d0239f0.tar.bz2 busybox-w32-bf2af9acb28ed6d8bbe351d669daaa140d0239f0.zip |
flash_lock, flash_unlock: new applets
By Thierry Reding (thierry.reding AT avionic-design.de)
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils')
-rw-r--r-- | miscutils/Config.in | 14 | ||||
-rw-r--r-- | miscutils/Kbuild | 4 | ||||
-rw-r--r-- | miscutils/flash_lock_unlock.c | 69 |
3 files changed, 86 insertions, 1 deletions
diff --git a/miscutils/Config.in b/miscutils/Config.in index 7feaf4a87..06ff51a7c 100644 --- a/miscutils/Config.in +++ b/miscutils/Config.in | |||
@@ -250,6 +250,20 @@ config FBSPLASH | |||
250 | "NN" (ASCII decimal number) - percentage to show on progress bar | 250 | "NN" (ASCII decimal number) - percentage to show on progress bar |
251 | "exit" - well you guessed it | 251 | "exit" - well you guessed it |
252 | 252 | ||
253 | config FLASH_LOCK | ||
254 | bool "flash_lock" | ||
255 | default n | ||
256 | help | ||
257 | The flash_lock binary from mtd-utils as of git head 5ec0c10d0. This | ||
258 | utility locks part or all of the flash device. | ||
259 | |||
260 | config FLASH_UNLOCK | ||
261 | bool "flash_unlock" | ||
262 | default n | ||
263 | help | ||
264 | The flash_unlock binary from mtd-utils as of git head 5ec0c10d0. This | ||
265 | utility unlocks part or all of the flash device. | ||
266 | |||
253 | config FLASH_ERASEALL | 267 | config FLASH_ERASEALL |
254 | bool "flash_eraseall" | 268 | bool "flash_eraseall" |
255 | default n | 269 | default n |
diff --git a/miscutils/Kbuild b/miscutils/Kbuild index 23d7d8d49..8ae8a488a 100644 --- a/miscutils/Kbuild +++ b/miscutils/Kbuild | |||
@@ -16,7 +16,9 @@ lib-$(CONFIG_DEVFSD) += devfsd.o | |||
16 | lib-$(CONFIG_DEVMEM) += devmem.o | 16 | lib-$(CONFIG_DEVMEM) += devmem.o |
17 | lib-$(CONFIG_EJECT) += eject.o | 17 | lib-$(CONFIG_EJECT) += eject.o |
18 | lib-$(CONFIG_FBSPLASH) += fbsplash.o | 18 | lib-$(CONFIG_FBSPLASH) += fbsplash.o |
19 | lib-$(CONFIG_FLASH_ERASEALL) += flash_eraseall.o | 19 | lib-$(CONFIG_FLASH_ERASEALL) += flash_eraseall.o |
20 | lib-$(CONFIG_FLASH_LOCK) += flash_lock_unlock.o | ||
21 | lib-$(CONFIG_FLASH_UNLOCK) += flash_lock_unlock.o | ||
20 | lib-$(CONFIG_IONICE) += ionice.o | 22 | lib-$(CONFIG_IONICE) += ionice.o |
21 | lib-$(CONFIG_HDPARM) += hdparm.o | 23 | lib-$(CONFIG_HDPARM) += hdparm.o |
22 | lib-$(CONFIG_INOTIFYD) += inotifyd.o | 24 | lib-$(CONFIG_INOTIFYD) += inotifyd.o |
diff --git a/miscutils/flash_lock_unlock.c b/miscutils/flash_lock_unlock.c new file mode 100644 index 000000000..f4e2f73b2 --- /dev/null +++ b/miscutils/flash_lock_unlock.c | |||
@@ -0,0 +1,69 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* Ported to busybox from mtd-utils. | ||
3 | * | ||
4 | * Licensed under GPLv2, see file LICENSE in this tarball for details. | ||
5 | */ | ||
6 | #include "libbb.h" | ||
7 | #include <mtd/mtd-user.h> | ||
8 | |||
9 | int flash_lock_unlock_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | ||
10 | int flash_lock_unlock_main(int argc UNUSED_PARAM, char **argv) | ||
11 | { | ||
12 | /* note: fields in these structs are 32-bits. | ||
13 | * apparently we can't win anything by using off_t | ||
14 | * or long long's for offset and/or sectors vars. */ | ||
15 | struct mtd_info_user info; | ||
16 | struct erase_info_user lock; | ||
17 | unsigned long offset; | ||
18 | long sectors; | ||
19 | int fd; | ||
20 | |||
21 | #define do_lock (ENABLE_FLASH_LOCK && (!ENABLE_FLASH_UNLOCK || (applet_name[6] == 'l'))) | ||
22 | |||
23 | if (!argv[1]) | ||
24 | bb_show_usage(); | ||
25 | |||
26 | /* parse offset and number of sectors to lock */ | ||
27 | offset = 0; | ||
28 | sectors = -1; | ||
29 | if (do_lock) { | ||
30 | if (!argv[2] || !argv[3]) | ||
31 | bb_show_usage(); | ||
32 | offset = xstrtoul(argv[2], 0); | ||
33 | sectors = xstrtol(argv[3], 0); | ||
34 | } | ||
35 | |||
36 | fd = xopen(argv[1], O_RDWR); | ||
37 | |||
38 | xioctl(fd, MEMGETINFO, &info); | ||
39 | |||
40 | lock.start = 0; | ||
41 | lock.length = info.size; | ||
42 | if (do_lock) { | ||
43 | unsigned long size = info.size - info.erasesize; | ||
44 | if (offset > size) { | ||
45 | bb_error_msg_and_die("%lx is beyond device size %lx\n", | ||
46 | offset, size); | ||
47 | } | ||
48 | |||
49 | if (sectors == -1) { | ||
50 | sectors = info.size / info.erasesize; | ||
51 | } else { | ||
52 | // isn't this useless? | ||
53 | unsigned long num = info.size / info.erasesize; | ||
54 | if (sectors > num) { | ||
55 | bb_error_msg_and_die("%ld are too many " | ||
56 | "sectors, device only has " | ||
57 | "%ld\n", sectors, num); | ||
58 | } | ||
59 | } | ||
60 | |||
61 | lock.start = offset; | ||
62 | lock.length = sectors * info.erasesize; | ||
63 | xioctl(fd, MEMLOCK, &lock); | ||
64 | } else { | ||
65 | xioctl(fd, MEMUNLOCK, &lock); | ||
66 | } | ||
67 | |||
68 | return EXIT_SUCCESS; | ||
69 | } | ||