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overweight 2019-09-30 10:54:27 -04:00
commit 5e1accdd27
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46
bugfix-kmod-20-8-depmod-Don-t-unlinkat-orig-depfile-and-add-fsync.patch Normal file
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@ -0,0 +1,46 @@
From 0f3d89015caf91ea96359ba7e2afd2aa8ab67e85 Mon Sep 17 00:00:00 2001
From: guoxiaoqi <guoxiaoqi2@huawei.com>
Date: Fri, 25 Jan 2019 17:03:05 +0000
Subject: [PATCH] ok
Signed-off-by: guoxiaoqi <guoxiaoqi2@huawei.com>
---
tools/depmod.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/depmod.c b/tools/depmod.c
index 989d907..f519679 100644
--- a/tools/depmod.c
+++ b/tools/depmod.c
@@ -2438,7 +2438,7 @@ static int depmod_output(struct depmod *depmod, FILE *out)
r = itr->cb(depmod, fp);
if (fp == out)
continue;
-
+ fsync(fileno(fp));
ferr = ferror(fp) | fclose(fp);
if (r < 0) {
@@ -2451,7 +2451,6 @@ static int depmod_output(struct depmod *depmod, FILE *out)
break;
}
- unlinkat(dfd, itr->name, 0);
if (renameat(dfd, tmp, dfd, itr->name) != 0) {
err = -errno;
CRIT("renameat(%s, %s, %s, %s): %m\n",
@@ -2467,8 +2466,10 @@ static int depmod_output(struct depmod *depmod, FILE *out)
}
}
- if (dfd >= 0)
+ if (dfd >= 0) {
+ fsync(dfd);
close(dfd);
+ }
return err;
}
--
1.8.3.1

62
depmod-prevent-module-dependency-files-corruption-du.patch Normal file
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@ -0,0 +1,62 @@
From a06bacf500d56b72b5f9b121ebf7f6af9e3df185 Mon Sep 17 00:00:00 2001
From: Michal Suchanek <msuchanek@suse.de>
Date: Mon, 17 Dec 2018 23:46:28 +0100
Subject: [PATCH 16/36] depmod: prevent module dependency files corruption due
to parallel invocation.
Depmod does not use unique filename for temporary files. There is no
guarantee the user does not attempt to run mutiple depmod processes in
parallel. If that happens a temporary file might be created by
depmod(1st), truncated by depmod(2nd), and renamed to final name by
depmod(1st) resulting in corrupted file seen by user.
Due to missing mkstempat() this is more complex than it should be.
Adding PID and timestamp to the filename should be reasonably reliable.
Adding O_EXCL as mkstemp does fails creating the file rather than
corrupting existing file.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
tools/depmod.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/depmod.c b/tools/depmod.c
index 18c0d61..0f7e33c 100644
--- a/tools/depmod.c
+++ b/tools/depmod.c
@@ -29,6 +29,7 @@
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
+#include <sys/time.h>
#include <sys/utsname.h>
#include <shared/array.h>
@@ -2398,6 +2399,9 @@ static int depmod_output(struct depmod *depmod, FILE *out)
};
const char *dname = depmod->cfg->dirname;
int dfd, err = 0;
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
if (out != NULL)
dfd = -1;
@@ -2416,11 +2420,12 @@ static int depmod_output(struct depmod *depmod, FILE *out)
int r, ferr;
if (fp == NULL) {
- int flags = O_CREAT | O_TRUNC | O_WRONLY;
+ int flags = O_CREAT | O_EXCL | O_WRONLY;
int mode = 0644;
int fd;
- snprintf(tmp, sizeof(tmp), "%s.tmp", itr->name);
+ snprintf(tmp, sizeof(tmp), "%s.%i.%li.%li", itr->name, getpid(),
+ tv.tv_usec, tv.tv_sec);
fd = openat(dfd, tmp, flags, mode);
if (fd < 0) {
ERR("openat(%s, %s, %o, %o): %m\n",
--
1.8.3.1

6
depmod.conf.dist Normal file
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#
# depmod.conf
#
# override default search ordering for kmod packaging
search EulerOS updates extra external built-in weak-updates

BIN
kmod-25.tar.xz Normal file
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Binary file not shown.

128
kmod.spec Normal file
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Name: kmod
Version: 25
Release: 5
Summary: Kernel module management
# GPLv2+ is used by programs, LGPLv2+ is used for libraries.
License: GPLv2+ and LGPLv2+
URL: http://git.kernel.org/?p=utils/kernel/kmod/kmod.git;a=summary
Source0: https://www.kernel.org/pub/linux/utils/kernel/kmod/%{name}-%{version}.tar.xz
Source1: weak-modules
Source2: depmod.conf.dist
Patch9000: bugfix-kmod-20-8-depmod-Don-t-unlinkat-orig-depfile-and-add-fsync.patch
Patch9001: libkmod-module-check-for-NULL-before-accessing-point.patch
Patch9002: depmod-prevent-module-dependency-files-corruption-du.patch
BuildRequires: gcc chrpath zlib-devel xz-devel libxslt
Provides: module-init-tools = 4.0-1
Provides: %{name} = %{version}-%{release} %{name}-libs
Provides: /sbin/modprobe
Obsoletes: %{name}-libs
%description
The kmod package provides several commands to manage the kernel modules,
such as insmod to load and rmmod to unload the modules.
%package devel
Summary: Header files for kmod development
Requires: %{name} = %{version}-%{release}
%description devel
The kmod-devel package provides header files used for loading or unloading
kernel modules.
%package help
Summary: Documents and man pages for the kmod
Requires: man info
%description help
The kmod-help package provides several documents and the man pages to help
developers to understand the kmod.
%prep
%autosetup -n %{name}-%{version} -p1
%build
%configure --with-zlib --with-xz
%make_build
%install
%make_install
pushd $RPM_BUILD_ROOT/%{_mandir}/man5
ln -s modprobe.d.5.gz modprobe.conf.5.gz
popd
mkdir -p $RPM_BUILD_ROOT%{_sbindir}
for i in $RPM_BUILD_ROOT%{_sbindir}/modprobe $RPM_BUILD_ROOT%{_sbindir}/modinfo $RPM_BUILD_ROOT%{_sbindir}/insmod \
$RPM_BUILD_ROOT%{_sbindir}/rmmod $RPM_BUILD_ROOT%{_sbindir}/depmod $RPM_BUILD_ROOT%{_sbindir}/lsmod
do
ln -sf ../bin/kmod $i
done
mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/modprobe.d
mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/depmod.d
mkdir -p $RPM_BUILD_ROOT%{_prefix}/lib/modprobe.d
mkdir -p $RPM_BUILD_ROOT/sbin
install -m 755 %{SOURCE1} $RPM_BUILD_ROOT%{_sbindir}/weak-modules
install -m 0644 %{SOURCE2} $RPM_BUILD_ROOT%{_sysconfdir}/depmod.d/dist.conf
%post -p /sbin/ldconfig
%postun -p /sbin/ldconfig
%files
%exclude %{_libdir}/*.la
%dir %{_sysconfdir}/*.d
%dir %{_prefix}/lib/modprobe.d
%{_bindir}/kmod
%{_sbindir}/*
%{_datadir}/bash-completion/
%{_sysconfdir}/depmod.d/dist.conf
%{!?_licensedir:%global license %%doc}
%license COPYING
%{_libdir}/libkmod.so.*
%files devel
%{_includedir}/libkmod.h
%{_libdir}/pkgconfig/libkmod.pc
%{_libdir}/libkmod.so
%files help
%attr(0644,root,root) %{_mandir}/man5/*.5*
%attr(0644,root,root) %{_mandir}/man8/*.8*
%doc TODO NEWS README
%changelog
* Sat Apr 6 2019 luochunsheng<luochunsheng@huawei.com> - 25-5
- Type:enhancement
- ID:NA
- SUG:NA
* Fri Mar 22 2019 kangenbo<kangenbo@huawei.com> - 25-4
- Type:enhancement
- ID:NA
- SUG:NA
- DESC: backport patches from communities
* Tue Mar 19 2019 hexiaowen<hexiaowen@huawei.com> - 25-3
- Type:enhancement
- ID:NA
- SUG:NA
- DESC: add /etc/depmod.d/dist.conf
* Fri Jan 25 2019 Xiaoqi Guo<guoxiaoqi2@huawei.com> - 25-2
- Type:bugfix
- ID:NA
- SUG:NA
- DESC:add patches, include
bugfix-kmod-20-8-depmod-Don-t-unlinkat-orig-depfile-and-add-fsync.patch
* Thu Jan 24 2019 openEuler Buildteam <buildteam@openeuler.org> - 25-1
- Package init

126
libkmod-module-check-for-NULL-before-accessing-point.patch Normal file
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From c8f0623ad18194eedfcca69ccae1cbfe6cf5d2a8 Mon Sep 17 00:00:00 2001
From: Luca Bruno <luca.bruno@coreos.com>
Date: Wed, 7 Mar 2018 10:51:21 +0000
Subject: [PATCH 04/36] libkmod-module: check for NULL before accessing
pointers
This introduces a few missing NULL-checks in public functions, and
align their docstrings with real behavior by getting rid of copy-paste
mistakes.
Signed-off-by: Luca Bruno <luca.bruno@coreos.com>
---
TODO | 5 +++++
libkmod/libkmod-module.c | 23 ++++++++++-------------
2 files changed, 15 insertions(+), 13 deletions(-)
diff --git a/TODO b/TODO
index 537e7e1..3fe06eb 100644
--- a/TODO
+++ b/TODO
@@ -35,6 +35,11 @@ and libkmod
- kmod_module_symbols_free_list()
- kmod_module_dependency_symbols_free_list()
+* libkmod API breaking changes:
+ - dedicated error value for all kmod_*_get_crc() functions. Currently there
+ is no way for callers to distinguish between a valid CRC=0 and the error
+ code 0.
+
* index: drop the "open(), seek(), read()" implementation and use another one
with mmap(). When lookup() is called and the file is not mmaped, mmap it.
Another possibility is to drop the mmap implementation relying on VFS to have
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index 0a3ef11..ee420f4 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -2519,7 +2519,7 @@ KMOD_EXPORT const char *kmod_module_version_get_symbol(const struct kmod_list *e
{
struct kmod_module_version *version;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return NULL;
version = entry->data;
@@ -2532,14 +2532,13 @@ KMOD_EXPORT const char *kmod_module_version_get_symbol(const struct kmod_list *e
*
* Get the crc of a kmod module version.
*
- * Returns: the crc of this kmod module version on success or NULL on
- * failure. The string is owned by the version, do not free it.
+ * Returns: the crc of this kmod module version if available, otherwise default to 0.
*/
KMOD_EXPORT uint64_t kmod_module_version_get_crc(const struct kmod_list *entry)
{
struct kmod_module_version *version;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return 0;
version = entry->data;
@@ -2660,7 +2659,7 @@ KMOD_EXPORT const char *kmod_module_symbol_get_symbol(const struct kmod_list *en
{
struct kmod_module_symbol *symbol;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return NULL;
symbol = entry->data;
@@ -2673,14 +2672,13 @@ KMOD_EXPORT const char *kmod_module_symbol_get_symbol(const struct kmod_list *en
*
* Get the crc of a kmod module symbol.
*
- * Returns: the crc of this kmod module symbol on success or NULL on
- * failure. The string is owned by the symbol, do not free it.
+ * Returns: the crc of this kmod module symbol if available, otherwise default to 0.
*/
KMOD_EXPORT uint64_t kmod_module_symbol_get_crc(const struct kmod_list *entry)
{
struct kmod_module_symbol *symbol;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return 0;
symbol = entry->data;
@@ -2806,7 +2804,7 @@ KMOD_EXPORT const char *kmod_module_dependency_symbol_get_symbol(const struct km
{
struct kmod_module_dependency_symbol *dependency_symbol;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return NULL;
dependency_symbol = entry->data;
@@ -2819,14 +2817,13 @@ KMOD_EXPORT const char *kmod_module_dependency_symbol_get_symbol(const struct km
*
* Get the crc of a kmod module dependency_symbol.
*
- * Returns: the crc of this kmod module dependency_symbol on success or NULL on
- * failure. The string is owned by the dependency_symbol, do not free it.
+ * Returns: the crc of this kmod module dependency_symbol if available, otherwise default to 0.
*/
KMOD_EXPORT uint64_t kmod_module_dependency_symbol_get_crc(const struct kmod_list *entry)
{
struct kmod_module_dependency_symbol *dependency_symbol;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return 0;
dependency_symbol = entry->data;
@@ -2846,7 +2843,7 @@ KMOD_EXPORT int kmod_module_dependency_symbol_get_bind(const struct kmod_list *e
{
struct kmod_module_dependency_symbol *dependency_symbol;
- if (entry == NULL)
+ if (entry == NULL || entry->data == NULL)
return 0;
dependency_symbol = entry->data;
--
1.8.3.1

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weak-modules Normal file
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@ -0,0 +1,475 @@
#!/bin/bash
#
# weak-modules - determine which modules are kABI compatible with installed
# kernels and set up the symlinks in /lib/*/weak-updates.
#
# Changelog:
#
# 2010/01/10 - Further updates for dracut use on Fedora/RHEL (jcm).
# 2009/09/16 - Rebase and add a bunch of updates for dracut (jcm).
unset LANG LC_ALL LC_COLLATE
tmpdir=$(mktemp -td ${0##*/}.XXXXXX)
trap "rm -rf $tmpdir" EXIT
unset ${!changed_modules_*} ${!changed_initramfs_*}
initramfs_prefix="/boot" # can customize here
dracut="/usr/bin/dracut"
if [ ! -x "$dracut" ]
then
echo "weak-modules: this tool requires a dracut-enabled kernel"
exit 1
fi
# doit:
# A wrapper used whenever we're going to perform a real operation.
doit() {
[ -n "$verbose" ] && echo "$@"
[ -n "$dry_run" ] || "$@"
}
# rpmsort: The sort in coreutils can't sort the RPM list how we want it so we
# instead transform the list into a form it will sort correctly, then sort.
rpmsort() {
local IFS=$' '
REVERSE=""
rpmlist=($(cat))
if [ "-r" == "$1" ];
then
REVERSE="-r"
fi
echo ${rpmlist[@]} | \
sed -e 's/-/../g' | \
sort ${REVERSE} -n -t"." -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 -k6,6 -k7,7 \
-k8,8 -k9,9 -k10,10 | \
sed -e 's/\.\./-/g'
}
# read_modules_list:
# Read in a list of modules from standard input. Convert the filenames into
# absolute paths and compute the kernel release for each module (either using
# the modinfo section or through the absolute path.
read_modules_list() {
local IFS=$'\n'
modules=($(cat))
for ((n = 0; n < ${#modules[@]}; n++)); do
if [ ${modules[n]:0:1} != '/' ]; then
modules[n]="$PWD/${modules[n]}"
fi
if [ -f "${modules[n]}" ]; then
module_krels[n]=$(krel_of_module ${modules[n]})
else
# Try to extract the kernel release from the path
set -- "${modules[n]#/lib/modules/}"
module_krels[n]=${1%%/*}
fi
done
}
# read_old_initramfs:
compare_initramfs_modules() {
local old_initramfs=$1
local new_initramfs=$2
rm -rf "$tmpdir/old_initramfs"
rm -rf "$tmpdir/new_initramfs"
mkdir "$tmpdir/old_initramfs"
mkdir "$tmpdir/new_initramfs"
pushd "$tmpdir/old_initramfs" >/dev/null
zcat "$old_initramfs" | cpio -i 2>/dev/null
n=0; for i in `find . -iname \*.ko|sort`; do
old_initramfs_modules[n]="$i"
n=$((n+1))
done
popd >/dev/null
pushd "$tmpdir/new_initramfs" >/dev/null
zcat "$new_initramfs" | cpio -i 2>/dev/null
n=0; for i in `find . -iname \*.ko|sort`; do
new_initramfs_modules[n]="$i"
n=$((n+1))
done
popd >/dev/null
if [ "${#old_initramfs_modules[@]}" == "${#new_initramfs_modules[@]}" ];
then
for ((n = 0; n < ${#old_initramfs_modules[@]}; n++)); do
old_md5=`md5sum $tmpdir/old_initramfs/${old_initramfs_modules[n]}|sed -nre 's:(^\ )* .*:\1:p'`
new_md5=`md5sum $tmpdir/new_initramfs/${new_initramfs_modules[n]}|sed -nre 's:(^\ )* .*:\1:p'`
if [ ! "$old_md5" == "$new_md5" ];
then
return 1
fi
done
else
return 1
fi
return 0
}
# check_initramfs:
# check and possibly also update the initramfs for changed kernels
check_initramfs() {
local kernel=$1
# If there is no initramfs already we will not make one here.
if [ -e "$initramfs_prefix/initramfs-$kernel.img" ];
then
old_initramfs="$initramfs_prefix/initramfs-$kernel.img"
tmp_initramfs="$initramfs_prefix/initramfs-$kernel.tmp"
new_initramfs="$initramfs_prefix/initramfs-$kernel.img"
$dracut -f "$tmp_initramfs" "$kernel"
if ! $(compare_initramfs_modules "$old_initramfs" "$tmp_initramfs");
then
doit mv "$tmp_initramfs" "$new_initramfs"
else
rm -f "$tmp_initramfs"
fi
fi
}
# krel_of_module:
# Compute the kernel release of a module.
krel_of_module() {
declare module=$1
/sbin/modinfo -F vermagic "$module" | awk '{print $1}'
}
# module_is_compatible:
# Determine if a module is compatible with a particular kernel release. Also
# include any symbol deps that might be introduced by other external kmods.
module_is_compatible() {
declare module=$1 krel=$2 module_krel=$(krel_of_module "$module")
if [ ! -e "$tmpdir/all-symvers-$krel-$module_krel" ]; then
# Symbols exported by the "new" kernel
if [ ! -e $tmpdir/symvers-$krel ]; then
if [ -e /boot/symvers-$krel.gz ]; then
zcat /boot/symvers-$krel.gz \
| sed -r -ne 's:^(0x[0]*[0-9a-f]{8}\t[0-9a-zA-Z_]+)\t.*:\1:p'
fi > $tmpdir/symvers-$krel
fi
# Symbols that other add-on modules of the "old" kernel export
# (and that this module may require)
if [ ! -e "$tmpdir/extra-symvers-$module_krel" ]; then
if [ -e /lib/modules/$module_krel/extra ] && \
[ -n "`find /lib/modules/$module_krel/extra -type f`" ]; then
find /lib/modules/$module_krel/extra -name '*.ko' \
| xargs nm \
| sed -nre 's:^[0]*([0-9a-f]{8}) A __crc_(.*):0x\1 \2:p'
fi > $tmpdir/extra-symvers-$module_krel
fi
sort -u $tmpdir/symvers-$krel $tmpdir/extra-symvers-$module_krel \
> "$tmpdir/all-symvers-$krel-$module_krel"
fi
# If the module does not have modversions enabled, $tmpdir/modvers
# will be empty.
/sbin/modprobe --dump-modversions "$module" \
| sed -r -e 's:^(0x[0]*[0-9a-f]{8}\t.*):\1:' \
| sort -u \
> $tmpdir/modvers
# Only include lines of the second file in the output that don't
# match lines in the first file. (The default separator is
# <space>, so we are matching the whole line.)
join -j 1 -v 2 $tmpdir/all-symvers-$krel-$module_krel \
$tmpdir/modvers > $tmpdir/join
if [ ! -s $tmpdir/modvers ]; then
echo "Warning: Module ${module##*/} from kernel $module_krel has no" \
"modversions, so it cannot be reused for kernel $krel" >&2
elif [ -s $tmpdir/join ]; then
[ -n "$verbose" ] &&
echo "Module ${module##*/} from kernel $module_krel is not compatible" \ "with kernel $krel in symbols:" $(sed -e 's:.* ::' $tmpdir/join)
else
[ -n "$verbose" ] &&
echo "Module ${module##*/} from kernel $module_krel is compatible" \
"with kernel $krel"
return 0
fi
return 1
}
usage() {
echo "Usage: ${0##*/} [options] {--add-modules|--remove-modules}"
echo "${0##*/} [options] {--add-kernel|--remove-kernel} {kernel-release}"
cat <<'EOF'
--add-modules
Add a list of modules read from standard input. Create
symlinks in compatible kernel's weak-updates/ directory.
The list of modules is read from standard input.
--remove-modules
Remove compatibility symlinks from weak-updates/ directories
for a list of modules. The list of modules is read from
standard input. Optionally specify --delete-modules to
prevent weak-modules from attempting to locate any
compatible modules to replace those being removed.
--add-kernel
Add compatibility symlinks for all compatible modules to the
specified or running kernel.
--remove-kernel
Remove all compatibility symlinks for the specified or current
kernel.
--no-initramfs
Do not generate an initramfs.
--verbose
Print the commands executed.
--dry-run
Do not create/remove any files.
EOF
exit $1
}
# module_has_changed:
# Mark if an actual change occured that we need to deal with later by calling
# depmod or mkinitramfs against the affected kernel.
module_has_changed() {
declare module=$1 krel=$2
module=${module%.ko}
module=${module##*/}
eval "changed_modules_${krel//[^a-zA-Z0-9]/_}=$krel"
eval "changed_initramfs_${krel//[^a-zA-Z0-9]/_}=$krel"
}
# add_modules:
# Read in a list of modules from stdinput and process them for compatibility
# with installed kernels under /lib/modules.
add_modules() {
read_modules_list || exit 1
if [ ${#modules[@]} -gt 0 ]; then
for krel in $(ls /lib/modules/); do
[ -e "/boot/symvers-$krel.gz" ] || continue
for ((n = 0; n < ${#modules[@]}; n++)); do
module="${modules[n]}"
module_krel="${module_krels[n]}"
case "$module" in
/lib/modules/$krel/*)
# Module was built against this kernel, update initramfs.
module_has_changed $module $krel
continue ;;
esac
# Module my also serve as a weak-update built against another
# kernel. We need to create symlinks for compatible kernels
# under /lib/modules and rerun depmod/dracut for those.
subpath=`echo $module | sed -nre "s:/lib/modules/$module_krel/([^/]*)/(.*):\2:p"`
weak_module="/lib/modules/$krel/weak-updates/${subpath#/}"
if [ -r "$weak_module" ]; then
weak_krel=$(krel_of_module "$weak_module")
if [ "$weak_krel" != "$module_krel" ] &&
[ "$(printf "%s\n" "$weak_krel" "$module_krel" \
| rpmsort | (read input; echo "$input"; \
while read input; do true; done))" = \
"$module_krel" ]; then
# Keep modules from more recent kernels.
[ -n "$verbose" ] && echo \
"Keeping module ${module##*/} from kernel $weak_krel for kernel $krel"
continue
fi
fi
if module_is_compatible $module $krel; then
doit mkdir -p $(dirname $weak_module)
doit ln -sf $module $weak_module
# Module was built against another kernel, update initramfs.
module_has_changed $module $krel
fi
done
done
fi
}
# remove_modules:
# Read in a list of modules from stdinput and process them for removal.
# Parameter is noreplace to delete modules, otherwise link compat.
remove_modules() {
delete_modules=${1:-replace}
read_modules_list || exit 1
if [ ${#modules[@]} -gt 0 ]; then
# Hunt for all known users of this module in /lib/modules, remove them
# and create symlinks to other compatible modules (downgrade) if
# possible, update initramfs for each modified kernel too.
krels=($(ls /lib/modules/ | rpmsort -r))
for krel in "${krels[@]}"; do
[ -e "/boot/symvers-$krel.gz" ] || continue
for ((n = 0; n < ${#modules[@]}; n++)); do
module="${modules[n]}"
module_krel="${module_krels[n]}"
# Module is going to be removed, update initramfs.
module_has_changed $module $krel
subpath="${module#/lib/modules/$module_krel/extra}"
weak_module="/lib/modules/$krel/weak-updates/${subpath#/}"
if [ "$module" == "`readlink $weak_module`" ]; then
[ -n "$verbose" ] && echo \
"Removing compatible module ${module##*/} from kernel $krel"
doit rm -f "$weak_module"
if [ "replace" == "$delete_modules" ]; then
for krel2 in "${krels[@]}"; do
if [ $krel2 != $krel ]; then
module="/lib/modules/$krel2/extra/${subpath#/}"
[ -e "$module" ] || continue
if module_is_compatible "$module" "$krel"; then
[ -n "$verbose" ] && echo \
"Adding compatible module ${module##*/} from kernel $krel2 instead"
doit ln -s "$module" "$weak_module"
module_has_changed $module $krel
break
fi
fi
done
fi
doit rmdir --parents --ignore-fail-on-non-empty \
"$(dirname "$weak_module")"
fi
done
done
fi
}
add_kernel() {
add_krel=${1:-$(uname -r)}
if [ ! -e "/boot/symvers-$add_krel.gz" ]; then
echo "Symvers dump file /boot/symvers-$add_krel.gz" \
"not found" >&2
exit 1
fi
for krel in $(ls /lib/modules/ | rpmsort -r); do
[ "$add_krel" = "$krel" ] && continue
[ -d /lib/modules/$krel/extra ] || continue
for module in $(find /lib/modules/$krel/extra -name '*.ko'); do
subpath="${module#/lib/modules/$krel/extra}"
weak_module="/lib/modules/$add_krel/weak-updates/${subpath#/}"
[ -e "$weak_module" ] && continue
if module_is_compatible $module $add_krel; then
module_has_changed $module $add_krel
doit mkdir -p $(dirname $weak_module)
doit ln -sf $module $weak_module
fi
done
done
}
remove_kernel() {
remove_krel=${1:-$(uname -r)}
weak_modules="/lib/modules/$remove_krel/weak-updates"
module_has_changed $weak_modules $remove_krel
doit rm -rf "$weak_modules"
}
################################################################################
################################## MAIN GUTS ###################################
################################################################################
options=`getopt -o h --long help,add-modules,remove-modules \
--long add-kernel,remove-kernel \
--long dry-run,no-initramfs,verbose,delete-modules -- "$@"`
[ $? -eq 0 ] || usage 1
eval set -- "$options"
while :; do
case "$1" in
--add-modules)
do_add_modules=1
;;
--remove-modules)
do_remove_modules=1
;;
--add-kernel)
do_add_kernel=1
;;
--remove-kernel)
do_remove_kernel=1
;;
--dry-run)
dry_run=1
;;
--no-initramfs)
no_initramfs=1
;;
--verbose)
verbose=1
;;
--delete-modules)
do_delete_modules=1
;;
-h|--help)
usage 0
;;
--)
shift
break
;;
esac
shift
done
if [ -n "$do_add_modules" ]; then
add_modules
elif [ -n "$do_remove_modules" ]; then
if [ -n "$do_delete_modules" ]; then
remove_modules "noreplace"
else
remove_modules
fi
elif [ -n "$do_add_kernel" ]; then
kernel=${1:-$(uname -r)}
add_kernel $kernel
elif [ -n "$do_remove_kernel" ]; then
kernel=${1:-$(uname -r)}
remove_kernel $kernel
exit 0
else
usage 1
fi
################################################################################
###################### CLEANUP POST ADD/REMOVE MODULE/KERNEL ###################
################################################################################
# run depmod and dracut as needed
for krel in ${!changed_modules_*}; do
krel=${!krel}
doit /sbin/depmod -ae -F /boot/System.map-$krel $krel
done
for krel in ${!changed_initramfs_*}; do
krel=${!krel}
if [ ! -n "$no_initramfs" ]; then
check_initramfs $krel
fi
done