From bf2af9acb28ed6d8bbe351d669daaa140d0239f0 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 25 May 2009 04:15:37 +0200 Subject: [PATCH] flash_lock, flash_unlock: new applets By Thierry Reding (thierry.reding AT avionic-design.de) Signed-off-by: Thierry Reding Signed-off-by: Denys Vlasenko --- include/applets.h | 3 +- include/usage.h | 11 ++++++ include/xatonum.h | 4 ++ libbb/xatonum_template.c | 5 +++ loginutils/addgroup.c | 2 +- miscutils/Config.in | 14 +++++++ miscutils/Kbuild | 4 +- miscutils/flash_lock_unlock.c | 69 +++++++++++++++++++++++++++++++++++ modutils/modprobe-small.c | 2 +- networking/tc.c | 4 +- 10 files changed, 112 insertions(+), 6 deletions(-) create mode 100644 miscutils/flash_lock_unlock.c diff --git a/include/applets.h b/include/applets.h index 7838757f5..5fbb3461e 100644 --- a/include/applets.h +++ b/include/applets.h @@ -155,8 +155,9 @@ IF_FDISK(APPLET(fdisk, _BB_DIR_SBIN, _BB_SUID_NEVER)) IF_FEATURE_GREP_FGREP_ALIAS(APPLET_ODDNAME(fgrep, grep, _BB_DIR_BIN, _BB_SUID_NEVER, fgrep)) IF_FIND(APPLET_NOEXEC(find, find, _BB_DIR_USR_BIN, _BB_SUID_NEVER, find)) IF_FINDFS(APPLET(findfs, _BB_DIR_SBIN, _BB_SUID_MAYBE)) -//IF_FLASH_ERASEALL(APPLET_ODDNAME(flash_eraseall, flash_eraseall, _BB_DIR_USR_SBIN, _BB_SUID_NEVER, flash_eraseall)) IF_FLASH_ERASEALL(APPLET(flash_eraseall, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) +IF_FLASH_LOCK(APPLET_ODDNAME(flash_lock, flash_lock_unlock, _BB_DIR_USR_SBIN, _BB_SUID_NEVER, flash_lock)) +IF_FLASH_UNLOCK(APPLET_ODDNAME(flash_unlock, flash_lock_unlock, _BB_DIR_USR_SBIN, _BB_SUID_NEVER, flash_unlock)) IF_FOLD(APPLET(fold, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) IF_FREE(APPLET(free, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) IF_FREERAMDISK(APPLET(freeramdisk, _BB_DIR_SBIN, _BB_SUID_NEVER)) diff --git a/include/usage.h b/include/usage.h index 1e327fb97..e6069259b 100644 --- a/include/usage.h +++ b/include/usage.h @@ -1248,6 +1248,17 @@ "$ find / -name passwd\n" \ "/etc/passwd\n" +#define flash_lock_trivial_usage \ + "MTD_DEVICE OFFSET SECTORS" +#define flash_lock_full_usage "\n\n" \ + "Lock part or all of an MTD device. If SECTORS is -1, then all sectors\n" \ + "will be locked, regardless of the value of OFFSET" + +#define flash_unlock_trivial_usage \ + "MTD_DEVICE" +#define flash_unlock_full_usage "\n\n" \ + "Unlock an MTD device" + #define flash_eraseall_trivial_usage \ "[-jq] MTD_DEVICE" #define flash_eraseall_full_usage "\n\n" \ diff --git a/include/xatonum.h b/include/xatonum.h index ee816efb4..864d2a383 100644 --- a/include/xatonum.h +++ b/include/xatonum.h @@ -22,6 +22,7 @@ unsigned type xato##UT##_sfx(const char *str, const struct suffix_mult *sfx) FAS unsigned type xato##UT(const char *str) FAST_FUNC; \ type xstrto##T##_range_sfx(const char *str, int b, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \ type xstrto##T##_range(const char *str, int b, type l, type u) FAST_FUNC; \ +type xstrto##T(const char *str, int b) FAST_FUNC; \ type xato##T##_range_sfx(const char *str, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \ type xato##T##_range(const char *str, type l, type u) FAST_FUNC; \ type xato##T##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \ @@ -66,6 +67,9 @@ static ALWAYS_INLINE \ narrow xstrto##N##_range(const char *str, int b, narrow l, narrow u) \ { return xstrto##W##_range(str, b, l, u); } \ static ALWAYS_INLINE \ +narrow xstrto##N(const char *str, int b) \ +{ return xstrto##W(str, b); } \ +static ALWAYS_INLINE \ narrow xato##N##_range_sfx(const char *str, narrow l, narrow u, const struct suffix_mult *sfx) \ { return xato##W##_range_sfx(str, l, u, sfx); } \ static ALWAYS_INLINE \ diff --git a/libbb/xatonum_template.c b/libbb/xatonum_template.c index 5e0bb59e6..339a7d35f 100644 --- a/libbb/xatonum_template.c +++ b/libbb/xatonum_template.c @@ -157,6 +157,11 @@ type FAST_FUNC xstrto(_range)(const char *numstr, int base, type lower, type upp return xstrto(_range_sfx)(numstr, base, lower, upper, NULL); } +type FAST_FUNC xstrto()(const char *numstr, int base) +{ + return xstrto(_range_sfx)(numstr, base, XSTR_TYPE_MIN, XSTR_TYPE_MAX, NULL); +} + type FAST_FUNC xato(_range_sfx)(const char *numstr, type lower, type upper, diff --git a/loginutils/addgroup.c b/loginutils/addgroup.c index dc60788e0..e49278efe 100644 --- a/loginutils/addgroup.c +++ b/loginutils/addgroup.c @@ -30,7 +30,7 @@ static void xgroup_study(struct group *g) } /* if a specific gid is requested, the --system switch and */ - /* min and max values are overriden, and the range of valid */ + /* min and max values are overridden, and the range of valid */ /* gid values is set to [0, INT_MAX] */ if (!(option_mask32 & OPT_GID)) { if (option_mask32 & OPT_SYSTEM_ACCOUNT) { 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 "NN" (ASCII decimal number) - percentage to show on progress bar "exit" - well you guessed it +config FLASH_LOCK + bool "flash_lock" + default n + help + The flash_lock binary from mtd-utils as of git head 5ec0c10d0. This + utility locks part or all of the flash device. + +config FLASH_UNLOCK + bool "flash_unlock" + default n + help + The flash_unlock binary from mtd-utils as of git head 5ec0c10d0. This + utility unlocks part or all of the flash device. + config FLASH_ERASEALL bool "flash_eraseall" 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-$(CONFIG_DEVFSD) += devfsd.o lib-$(CONFIG_DEVMEM) += devmem.o lib-$(CONFIG_EJECT) += eject.o lib-$(CONFIG_FBSPLASH) += fbsplash.o -lib-$(CONFIG_FLASH_ERASEALL) += flash_eraseall.o +lib-$(CONFIG_FLASH_ERASEALL) += flash_eraseall.o +lib-$(CONFIG_FLASH_LOCK) += flash_lock_unlock.o +lib-$(CONFIG_FLASH_UNLOCK) += flash_lock_unlock.o lib-$(CONFIG_IONICE) += ionice.o lib-$(CONFIG_HDPARM) += hdparm.o 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 @@ +/* vi: set sw=4 ts=4: */ +/* Ported to busybox from mtd-utils. + * + * Licensed under GPLv2, see file LICENSE in this tarball for details. + */ +#include "libbb.h" +#include + +int flash_lock_unlock_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int flash_lock_unlock_main(int argc UNUSED_PARAM, char **argv) +{ + /* note: fields in these structs are 32-bits. + * apparently we can't win anything by using off_t + * or long long's for offset and/or sectors vars. */ + struct mtd_info_user info; + struct erase_info_user lock; + unsigned long offset; + long sectors; + int fd; + +#define do_lock (ENABLE_FLASH_LOCK && (!ENABLE_FLASH_UNLOCK || (applet_name[6] == 'l'))) + + if (!argv[1]) + bb_show_usage(); + + /* parse offset and number of sectors to lock */ + offset = 0; + sectors = -1; + if (do_lock) { + if (!argv[2] || !argv[3]) + bb_show_usage(); + offset = xstrtoul(argv[2], 0); + sectors = xstrtol(argv[3], 0); + } + + fd = xopen(argv[1], O_RDWR); + + xioctl(fd, MEMGETINFO, &info); + + lock.start = 0; + lock.length = info.size; + if (do_lock) { + unsigned long size = info.size - info.erasesize; + if (offset > size) { + bb_error_msg_and_die("%lx is beyond device size %lx\n", + offset, size); + } + + if (sectors == -1) { + sectors = info.size / info.erasesize; + } else { +// isn't this useless? + unsigned long num = info.size / info.erasesize; + if (sectors > num) { + bb_error_msg_and_die("%ld are too many " + "sectors, device only has " + "%ld\n", sectors, num); + } + } + + lock.start = offset; + lock.length = sectors * info.erasesize; + xioctl(fd, MEMLOCK, &lock); + } else { + xioctl(fd, MEMUNLOCK, &lock); + } + + return EXIT_SUCCESS; +} diff --git a/modutils/modprobe-small.c b/modutils/modprobe-small.c index 3fd7bf5ad..0d78033c3 100644 --- a/modutils/modprobe-small.c +++ b/modutils/modprobe-small.c @@ -656,7 +656,7 @@ depmod -[aA] [-n -e -v -q -V -r -u] [-b basedirectory] [forced_version] depmod [-n -e -v -q -r -u] [-F kernelsyms] module1.ko module2.ko ... If no arguments (except options) are given, "depmod -a" is assumed. -depmod will output a dependancy list suitable for the modprobe utility. +depmod will output a dependency list suitable for the modprobe utility. Options: -a, --all Probe all modules -A, --quick Only does the work if there's a new module diff --git a/networking/tc.c b/networking/tc.c index 79cdd7c55..4e84faae9 100644 --- a/networking/tc.c +++ b/networking/tc.c @@ -322,7 +322,7 @@ static int print_qdisc(const struct sockaddr_nl *who UNUSED_PARAM, int qqq = index_in_strings(_q_, name); if (qqq == 0) { /* pfifo_fast aka prio */ prio_print_opt(tb[TCA_OPTIONS]); - } else if (qqq == 1) { /* class based queueing */ + } else if (qqq == 1) { /* class based queuing */ cbq_print_opt(tb[TCA_OPTIONS]); } else bb_error_msg("unknown %s", name); @@ -388,7 +388,7 @@ static int print_class(const struct sockaddr_nl *who UNUSED_PARAM, int qqq = index_in_strings(_q_, name); if (qqq == 0) { /* pfifo_fast aka prio */ /* nothing. */ /*prio_print_opt(tb[TCA_OPTIONS]);*/ - } else if (qqq == 1) { /* class based queueing */ + } else if (qqq == 1) { /* class based queuing */ /* cbq_print_copt() is identical to cbq_print_opt(). */ cbq_print_opt(tb[TCA_OPTIONS]); } else -- 2.25.1