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Permit users to disable module loading support

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Inspired by e30431623a7d871da123cc37055ac49abf2c20ea from systemd.

Signed-off-by: Richard Yao <ryao@gentoo.org>
This commit is contained in:
Richard Yao 2012-11-23 00:20:15 -05:00 committed by Richard Yao
parent c4d1ce9b75
commit 3bb4e05ce4
7 changed files with 41 additions and 20 deletions
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36
configure.ac
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@ -275,23 +275,33 @@ AC_SUBST([rootprefix], [$with_rootprefix])
AC_SUBST([rootlibdir], [$with_rootlibdir])
AC_SUBST([udevlibexecdir], [${with_rootlibdir}/udev])
# ------------------------------------------------------------------------------
AC_ARG_ENABLE([libkmod], [AS_HELP_STRING([--enable-libkmod], [Enable module loading through kmod @<:@default=disabled@:>@])], [], [with_libkmod=no])
LIBKMOD=
AS_IF([test "x$with_libkmod" != xno],
[AC_CHECK_LIB([kmod], [main],
[PKG_CHECK_MODULES(KMOD, [libkmod >= 5])
AC_SUBST([LIBKMOD], ["-lkmod"])
AC_DEFINE([HAVE_LIBKMOD], [1],
[Define if you have libkmod])
],
[AC_MSG_FAILURE(
[--with-libkmod was given, but test for kmod failed])],
[-lkmod])])
AC_ARG_ENABLE([modules], [AS_HELP_STRING([--disable-modules], [Disable loadable module support @<:@default=enabled@:>@])], [have_modules=no], [have_modules=yes])
AC_ARG_ENABLE([libkmod], [AS_HELP_STRING([--enable-libkmod], [Enable module loading through kmod @<:@default=disabled@:>@])], [have_libkmod=yes], [have_libkmod=no])
if test "x$have_modules" == "xyes"; then
AC_DEFINE([HAVE_MODULES], [1], [Define if we support loading modules])
AS_IF([test "x$have_libkmod" != xno],
[AC_CHECK_LIB([kmod], [main],
[PKG_CHECK_MODULES(KMOD, [libkmod >= 5])
AC_SUBST([LIBKMOD], ["-lkmod"])
AC_DEFINE([HAVE_LIBKMOD], [1],
[Define if you have libkmod])
],
[AC_MSG_FAILURE(
[--with-libkmod was given, but test for kmod failed])],
[-lkmod])])
fi
AM_CONDITIONAL([HAVE_MODULES], [test "x$have_modules" == "xyes"])
AM_CONDITIONAL([HAVE_LIBKMOD], [test "x$have_libkmod" == "xyes"])
AM_CONDITIONAL([HAVE_LIBKMOD], [test "$with_kmod" = "yes"])
# ------------------------------------------------------------------------------

1
rules/75-probe_mtd.rules
View File

@ -3,6 +3,5 @@
ACTION!="add", GOTO="mtd_probe_end"
KERNEL=="mtd*ro", IMPORT{program}="mtd_probe $devnode"
KERNEL=="mtd*ro", ENV{MTD_FTL}=="smartmedia", IMPORT{builtin}="kmod load sm_ftl"
LABEL="mtd_probe_end"

1
rules/80-drivers.rules
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@ -3,6 +3,7 @@
ACTION=="remove", GOTO="drivers_end"
DRIVER!="?*", ENV{MODALIAS}=="?*", IMPORT{builtin}="kmod load $env{MODALIAS}"
KERNEL=="mtd*ro", ENV{MTD_FTL}=="smartmedia", IMPORT{builtin}="kmod load sm_ftl"
SUBSYSTEM=="tifm", ENV{TIFM_CARD_TYPE}=="SD", IMPORT{builtin}="kmod load tifm_sd"
SUBSYSTEM=="tifm", ENV{TIFM_CARD_TYPE}=="MS", IMPORT{builtin}="kmod load tifm_ms"
SUBSYSTEM=="memstick", IMPORT{builtin}="kmod load ms_block mspro_block"

6
rules/Makefile.am
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@ -20,9 +20,13 @@ dist_udevrules_DATA = \
75-probe_mtd.rules \
75-tty-description.rules \
78-sound-card.rules \
80-drivers.rules \
95-udev-late.rules
if HAVE_MODULES
dist_udevrules_DATA += \
80-drivers.rules
endif
if ENABLE_KEYMAP
dist_udevrules_DATA += \
95-keymap.rules \

11
src/udev/Makefile.am
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@ -50,7 +50,6 @@ libudev_core_la_SOURCES = \
udev-builtin-firmware.c \
udev-builtin-hwdb.c \
udev-builtin-input_id.c \
udev-builtin-kmod.c \
udev-builtin-net_id.c \
udev-builtin-path_id.c \
udev-builtin-usb_id.c \
@ -104,17 +103,19 @@ libudev_core_la_CFLAGS = \
$(AM_CFLAGS) \
$(BLKID_CFLAGS)
if HAVE_LIBKMOD
libudev_core_la_CFLAGS += $(KMOD_CFLAGS)
endif
libudev_core_la_LIBADD = \
$(top_builddir)/src/libudev/libudev-private.la \
$(BLKID_LIBS)
if HAVE_MODULES
libudev_core_la_SOURCES += \
udev-builtin-kmod.c
if HAVE_LIBKMOD
libudev_core_la_CFLAGS += $(KMOD_CFLAGS)
libudev_core_la_LIBADD += $(KMOD_LIBS)
endif
endif
if HAVE_ACL
libudev_core_la_SOURCES += \

2
src/udev/udev-builtin.c
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@ -35,7 +35,9 @@ static const struct udev_builtin *builtins[] = {
[UDEV_BUILTIN_FIRMWARE] = &udev_builtin_firmware,
[UDEV_BUILTIN_HWDB] = &udev_builtin_hwdb,
[UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
#ifdef HAVE_MODULES
[UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
#endif
[UDEV_BUILTIN_NET_ID] = &udev_builtin_net_id,
[UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
[UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,

4
src/udev/udev.h
View File

@ -139,7 +139,9 @@ enum udev_builtin_cmd {
UDEV_BUILTIN_FIRMWARE,
UDEV_BUILTIN_HWDB,
UDEV_BUILTIN_INPUT_ID,
#ifdef HAVE_MODULES
UDEV_BUILTIN_KMOD,
#endif
UDEV_BUILTIN_NET_ID,
UDEV_BUILTIN_PATH_ID,
UDEV_BUILTIN_USB_ID,
@ -162,7 +164,9 @@ extern const struct udev_builtin udev_builtin_btrfs;
extern const struct udev_builtin udev_builtin_firmware;
extern const struct udev_builtin udev_builtin_hwdb;
extern const struct udev_builtin udev_builtin_input_id;
#ifdef HAVE_MODULES
extern const struct udev_builtin udev_builtin_kmod;
#endif
extern const struct udev_builtin udev_builtin_net_id;
extern const struct udev_builtin udev_builtin_path_id;
extern const struct udev_builtin udev_builtin_usb_id;