From 9d4c3adcd051408a9a4489984be73f9c06b938ab Mon Sep 17 00:00:00 2001 From: Michal Suchanek Date: Tue, 12 Jan 2021 16:54:46 +0100 Subject: [PATCH 2/9] libkmod, depmod: Load modprobe.d, depmod.d from $prefix/lib. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is an ongoing effort to limit use of files outside of /usr (or $prefix on general). Currently all modprobe.d paths are hardcoded to outside of $prefix. Teach kmod to load modprobe.d from $prefix/lib. On some distributions /usr/lib and /lib are the same directory because of a compatibility symlink, and it is possible to craft configuration files with sideeffects that would behave differently when loaded twice. However, the override semantic ensures that one 'overrides' the other, and only one configuration file of the same name is loaded from any of the seach directories. Cc: Marcus Rückert Cc: Takashi Iwai Cc: Dominique Leuenberger Signed-off-by: Michal Suchanek --- Makefile.am | 1 + libkmod/libkmod.c | 3 ++- man/Makefile.am | 9 +++++++-- man/depmod.d.xml | 1 + man/modprobe.d.xml | 1 + tools/depmod.c | 1 + 6 files changed, 13 insertions(+), 3 deletions(-) diff --git a/Makefile.am b/Makefile.am index 0e4877074f40..e7313fa8a33e 100644 --- a/Makefile.am +++ b/Makefile.am @@ -19,6 +19,7 @@ AM_CPPFLAGS = \ -include $(top_builddir)/config.h \ -I$(top_srcdir) \ -DSYSCONFDIR=\""$(sysconfdir)"\" \ + -DPREFIX=\""$(prefix)"\" \ ${zlib_CFLAGS} AM_CFLAGS = $(OUR_CFLAGS) diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c index 7c2b889d713e..75fc8be3fadc 100644 --- a/libkmod/libkmod.c +++ b/libkmod/libkmod.c @@ -65,6 +65,7 @@ static const char *default_config_paths[] = { SYSCONFDIR "/modprobe.d", "/run/modprobe.d", "/usr/local/lib/modprobe.d", + PREFIX "/lib/modprobe.d", "/lib/modprobe.d", NULL }; @@ -237,7 +238,7 @@ static char *get_kernel_release(const char *dirname) * to load from user-defined configuration parameters such as * alias, blacklists, commands (install, remove). If NULL * defaults to /etc/modprobe.d, /run/modprobe.d, - * /usr/local/lib/modprobe.d and /lib/modprobe.d. Give an empty + * /usr/local/lib/modprobe.d and PREFIX/lib/modprobe.d. Give an empty * vector if configuration should not be read. This array must * be null terminated. * diff --git a/man/Makefile.am b/man/Makefile.am index 11514d52a190..ad07c30bbd24 100644 --- a/man/Makefile.am +++ b/man/Makefile.am @@ -17,9 +17,14 @@ EXTRA_DIST = $(MAN5:%.5=%.xml) $(MAN8:%.8=%.xml) CLEANFILES = $(dist_man_MANS) %.5 %.8: %.xml - $(AM_V_XSLT)$(XSLT) \ + $(AM_V_XSLT)if [ -n '$(prefix)' ] ; then \ + sed -e 's|@PREFIX@|$(prefix)|g' $< ; \ + else \ + sed -e '/@PREFIX@/d' $< ; \ + fi | \ + $(XSLT) \ -o $@ \ --nonet \ --stringparam man.output.quietly 1 \ --param funcsynopsis.style "'ansi'" \ - http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $< + http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl - diff --git a/man/depmod.d.xml b/man/depmod.d.xml index 8d3d821cddc8..431ebca6654b 100644 --- a/man/depmod.d.xml +++ b/man/depmod.d.xml @@ -40,6 +40,7 @@ /lib/depmod.d/*.conf + @PREFIX@/lib/depmod.d/*.conf /usr/local/lib/depmod.d/*.conf /run/depmod.d/*.conf /etc/depmod.d/*.conf diff --git a/man/modprobe.d.xml b/man/modprobe.d.xml index 0ab3e9110a7e..e8a91d7668af 100644 --- a/man/modprobe.d.xml +++ b/man/modprobe.d.xml @@ -41,6 +41,7 @@ /lib/modprobe.d/*.conf + @PREFIX@/lib/modprobe.d/*.conf /usr/local/lib/modprobe.d/*.conf /run/modprobe.d/*.conf /etc/modprobe.d/*.conf diff --git a/tools/depmod.c b/tools/depmod.c index 364b7d4faa9e..a9349b20ee9c 100644 --- a/tools/depmod.c +++ b/tools/depmod.c @@ -54,6 +54,7 @@ static const char *default_cfg_paths[] = { SYSCONFDIR "/depmod.d", "/run/depmod.d", "/usr/local/lib/depmod.d", + PREFIX "/lib/depmod.d", "/lib/depmod.d", NULL }; -- 2.41.0