Gecko [ sachasauda.akalacademy.ac.in ]

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Name	Size	Permission	Action
accessdb	11.55 KB	-rwxr-xr-x
addgnupghome	3.05 KB	-rwxr-xr-x
addpart	19.69 KB	-rwxr-xr-x
adduser	134.39 KB	-rwxr-xr-x
agetty	48.48 KB	-rwxr-xr-x
alternatives	27.61 KB	-rwxr-xr-x
anacron	35.52 KB	-rwxr-xr-x
apachectl	4.31 KB	-rwxr-xr-x
applygnupgdefaults	2.21 KB	-rwxr-xr-x
arp	63.98 KB	-rwxr-xr-x
arpd	52.98 KB	-rwxr-xr-x
arping	23.19 KB	-rwxr-xr-x
atd	27.17 KB	-rwxr-xr-x
atrun	67 B	-rwxr-xr-x
audispd	39.75 KB	-rwxr-xr-x
auditctl	39.56 KB	-rwxr-xr-x
auditd	125.65 KB	-rwxr-xr-x
augenrules	3.7 KB	-rwxr-xr-x
aureport	105.39 KB	-rwxr-xr-x
ausearch	109.8 KB	-rwxr-xr-x
authconfig	43.49 KB	-rwxr-xr-x
authconfig-tui	43.49 KB	-rwxr-xr-x
autrace	15.49 KB	-rwxr-x---
avcstat	11.25 KB	-rwxr-xr-x
badblocks	27.69 KB	-rwxr-xr-x
biosdecode	24.15 KB	-rwxr-xr-x
biosdevname	36.57 KB	-rwxr-xr-x
blkdeactivate	15.97 KB	-r-xr-xr-x
blkdiscard	23.84 KB	-rwxr-xr-x
blkid	77.92 KB	-rwxr-xr-x
blkmapd	43.81 KB	-rwxr-xr-x
blockdev	32.2 KB	-rwxr-xr-x
bridge	77.61 KB	-rwxr-xr-x
btrfs	690.59 KB	-rwxr-xr-x
btrfs-convert	378.62 KB	-rwxr-xr-x
btrfs-debug-tree	354.23 KB	-rwxr-xr-x
btrfs-find-root	346.22 KB	-rwxr-xr-x
btrfs-image	374.63 KB	-rwxr-xr-x
btrfs-map-logical	350.27 KB	-rwxr-xr-x
btrfs-select-super	346.2 KB	-rwxr-xr-x
btrfs-zero-log	346.2 KB	-rwxr-xr-x
btrfsck	690.59 KB	-rwxr-xr-x
btrfstune	350.24 KB	-rwxr-xr-x
build-locale-archive	860.52 KB	-rwx------
cacertdir_rehash	644 B	-rwxr-xr-x
capsh	19.43 KB	-rwxr-xr-x
cbq	32.73 KB	-rwxr-xr-x
cfdisk	71.37 KB	-rwxr-xr-x
chcpu	23.7 KB	-rwxr-xr-x
chgpasswd	64.1 KB	-rwxr-xr-x
chkconfig	40.22 KB	-rwxr-xr-x
chpasswd	55.88 KB	-rwxr-xr-x
chronyd	263.08 KB	-rwxr-xr-x
chroot	32.48 KB	-rwxr-xr-x
clock	48.44 KB	-rwxr-xr-x
clockdiff	19.04 KB	-rwxr-xr-x
consoletype	6.95 KB	-rwxr-xr-x
convertquota	70.88 KB	-rwxr-xr-x
cracklib-check	7.04 KB	-rwxr-xr-x
cracklib-format	246 B	-rwxr-xr-x
cracklib-packer	11.06 KB	-rwxr-xr-x
cracklib-unpacker	7.02 KB	-rwxr-xr-x
create-cracklib-dict	990 B	-rwxr-xr-x
crond	68.48 KB	-rwxr-xr-x
ctrlaltdel	11.2 KB	-rwxr-xr-x
ctstat	20.09 KB	-rwxr-xr-x
ddns-confgen	19.44 KB	-rwxr-xr-x
debugfs	120.64 KB	-rwxr-xr-x
delpart	19.69 KB	-rwxr-xr-x
depmod	143.24 KB	-rwxr-xr-x
devlink	64.72 KB	-rwxr-xr-x
dhclient	414.34 KB	-rwxr-xr-x
dhclient-script	30.38 KB	-rwxr-xr-x
dmfilemapd	19.16 KB	-r-xr-xr-x
dmidecode	120.2 KB	-rwxr-xr-x
dmsetup	149.2 KB	-r-xr-xr-x
dmstats	149.2 KB	-r-xr-xr-x
dnssec-checkds	922 B	-rwxr-xr-x
dnssec-coverage	924 B	-rwxr-xr-x
dnssec-dsfromkey	56.6 KB	-rwxr-xr-x
dnssec-importkey	52.59 KB	-rwxr-xr-x
dnssec-keyfromlabel	60.52 KB	-rwxr-xr-x
dnssec-keygen	64.55 KB	-rwxr-xr-x
dnssec-keymgr	920 B	-rwxr-xr-x
dnssec-revoke	48.45 KB	-rwxr-xr-x
dnssec-settime	56.52 KB	-rwxr-xr-x
dnssec-signzone	105.7 KB	-rwxr-xr-x
dnssec-verify	48.46 KB	-rwxr-xr-x
dovecot	370.66 KB	-rwxr-xr-x
dovecot_cpshutdown	3.27 KB	-rwxr-xr-x
dracut	55.83 KB	-rwxr-xr-x
dumpe2fs	23.62 KB	-rwxr-xr-x
e2freefrag	11.15 KB	-rwxr-xr-x
e2fsck	250.55 KB	-rwxr-xr-x
e2image	27.85 KB	-rwxr-xr-x
e2label	69.41 KB	-rwxr-xr-x
e2undo	11.32 KB	-rwxr-xr-x
e4defrag	23.55 KB	-rwxr-xr-x
eapol_test	1.77 MB	-rwxr-xr-x
ebtables	6.85 KB	-rwxr-xr-x
ebtables-restore	10.88 KB	-rwxr-xr-x
ebtables-save	851 B	-rwxr-xr-x
edquota	83.09 KB	-rwxr-xr-x
ether-wake	73.26 KB	-rwxr-xr-x
ethtool	293.87 KB	-rwxr-xr-x
exicyclog	11.01 KB	-rwxr-xr-x
exigrep	10.44 KB	-rwxr-xr-x
exim	1.33 MB	-rwsr-xr-x
exim_checkaccess	4.73 KB	-rwxr-xr-x
exim_dbmbuild	82.09 KB	-rwxr-xr-x
exim_dumpdb	134.47 KB	-rwxr-xr-x
exim_fixdb	168.22 KB	-rwxr-xr-x
exim_lock	64.66 KB	-rwxr-xr-x
exim_tidydb	142.8 KB	-rwxr-xr-x
eximstats	148.01 KB	-rwxr-xr-x
exinext	8.02 KB	-rwxr-xr-x
exiqgrep	5.46 KB	-rwxr-xr-x
exiqsumm	5.07 KB	-rwxr-xr-x
exiwhat	4.32 KB	-rwxr-xr-x
exportfs	76.91 KB	-rwxr-xr-x
faillock	15.02 KB	-rwxr-xr-x
fcgistarter	23.85 KB	-rwxr-xr-x
fdformat	11.27 KB	-rwxr-xr-x
fdisk	195.8 KB	-rwxr-xr-x
filefrag	15.23 KB	-rwxr-xr-x
findfs	11.2 KB	-rwxr-xr-x
firewalld	6.87 KB	-rwxr-xr-x
fixfiles	11.03 KB	-rwxr-xr-x
fsck	32.12 KB	-rwxr-xr-x
fsck.btrfs	1.16 KB	-rwxr-xr-x
fsck.cramfs	19.57 KB	-rwxr-xr-x
fsck.ext2	250.55 KB	-rwxr-xr-x
fsck.ext3	250.55 KB	-rwxr-xr-x
fsck.ext4	250.55 KB	-rwxr-xr-x
fsck.minix	73.32 KB	-rwxr-xr-x
fsck.xfs	433 B	-rwxr-xr-x
fsfreeze	11.23 KB	-rwxr-xr-x
fstrim	40.59 KB	-rwxr-xr-x
fuser	32.34 KB	-rwxr-xr-x
fxload	19.26 KB	-rwxr-xr-x
genhomedircon	23.77 KB	-rwxr-xr-x
genhostid	6.94 KB	-rwxr-xr-x
genl	52.81 KB	-rwxr-xr-x
genl-ctrl-list	11.27 KB	-rwxr-xr-x
genrandom	11.16 KB	-rwxr-xr-x
getcap	11.13 KB	-rwxr-xr-x
getenforce	7.01 KB	-rwxr-xr-x
getpcaps	7.07 KB	-rwxr-xr-x
getsebool	11.13 KB	-rwxr-xr-x
glibc_post_upgrade.x86_64	772.05 KB	-rwx------
groupadd	85.65 KB	-rwxr-xr-x
groupdel	77.38 KB	-rwxr-xr-x
groupmems	55.97 KB	-rwxr-xr-x
groupmod	85.66 KB	-rwxr-xr-x
grpck	59.93 KB	-rwxr-xr-x
grpconv	51.73 KB	-rwxr-xr-x
grpunconv	51.73 KB	-rwxr-xr-x
grub2-bios-setup	1.03 MB	-rwxr-xr-x
grub2-get-kernel-settings	2.08 KB	-rwxr-xr-x
grub2-install	1.29 MB	-rwxr-xr-x
grub2-macbless	1.02 MB	-rwxr-xr-x
grub2-mkconfig	7.63 KB	-rwxr-xr-x
grub2-ofpathname	225.54 KB	-rwxr-xr-x
grub2-probe	1.03 MB	-rwxr-xr-x
grub2-reboot	4 KB	-rwxr-xr-x
grub2-rpm-sort	258.52 KB	-rwxr-xr-x
grub2-set-default	3.46 KB	-rwxr-xr-x
grub2-setpassword	2.96 KB	-rwxr-xr-x
grub2-sparc64-setup	1.04 MB	-rwxr-xr-x
grubby	71.27 KB	-rwxr-xr-x
gss-server	23.13 KB	-rwxr-xr-x
gssproxy	130.64 KB	-rwxr-xr-x
halt	704.8 KB	-rwxr-xr-x
hardlink	15.29 KB	-rwxr-xr-x
htcacheclean	78.45 KB	-rwxr-xr-x
httpd	2.31 MB	-rwxr-xr-x
hwclock	48.44 KB	-rwxr-xr-x
iconvconfig	22.15 KB	-rwxr-xr-x
iconvconfig.x86_64	22.15 KB	-rwxr-xr-x
ifcfg	2.99 KB	-rwxr-xr-x
ifconfig	80.05 KB	-rwxr-xr-x
ifdown	1.61 KB	-rwxr-xr-x
ifenslave	19.74 KB	-rwxr-xr-x
ifstat	40.6 KB	-rwxr-xr-x
ifup	4.89 KB	-rwxr-xr-x
imunify-notifier	8.63 MB	-rwxr-xr-x
init	1.56 MB	-rwxr-xr-x
insmod	143.24 KB	-rwxr-xr-x
install-info	110.42 KB	-rwxr-xr-x
installkernel	2.69 KB	-rwxr-xr-x
intel-microcode2ucode	11.1 KB	-rwxr-xr-x
ip	459.59 KB	-rwxr-xr-x
ip6tables	91.52 KB	-rwxr-xr-x
ip6tables-restore	91.52 KB	-rwxr-xr-x
ip6tables-save	91.52 KB	-rwxr-xr-x
ipmaddr	19.33 KB	-rwxr-xr-x
iprconfig	394.37 KB	-rwxr-xr-x
iprdbg	135.94 KB	-rwx------
iprdump	123.67 KB	-rwxr-xr-x
iprinit	123.64 KB	-rwxr-xr-x
iprsos	2.18 KB	-rwxr-xr-x
iprupdate	123.64 KB	-rwxr-xr-x
ipset	7.02 KB	-rwxr-xr-x
iptables	91.52 KB	-rwxr-xr-x
iptables-restore	91.52 KB	-rwxr-xr-x
iptables-save	91.52 KB	-rwxr-xr-x
iptunnel	23.33 KB	-rwxr-xr-x
irqbalance	48.5 KB	-rwxr-xr-x
isc-hmac-fixup	11.2 KB	-rwxr-xr-x
kexec	166.06 KB	-rwxr-xr-x
key.dns_resolver	19.45 KB	-rwxr-xr-x
killall5	23.17 KB	-rwxr-xr-x
kpartx	39.47 KB	-rwxr-xr-x
lchage	15.41 KB	-rwxr-xr-x
ldattach	27.93 KB	-rwxr-xr-x
ldconfig	952.08 KB	-rwxr-xr-x
lgroupadd	11.28 KB	-rwxr-xr-x
lgroupdel	11.26 KB	-rwxr-xr-x
lgroupmod	15.44 KB	-rwxr-xr-x
lid	15.4 KB	-rwxr-xr-x
lnewusers	15.46 KB	-rwxr-xr-x
lnstat	20.09 KB	-rwxr-xr-x
load_policy	10.97 KB	-rwxr-xr-x
logrotate	68.61 KB	-rwxr-xr-x
logsave	11.27 KB	-rwxr-xr-x
losetup	82.45 KB	-rwxr-xr-x
lpasswd	15.5 KB	-rwxr-xr-x
lsmod	143.24 KB	-rwxr-xr-x
lsof	150.57 KB	-rwxr-xr-x
luseradd	15.38 KB	-rwxr-xr-x
luserdel	11.3 KB	-rwxr-xr-x
lusermod	19.43 KB	-rwxr-xr-x
lwresd	768.18 KB	-rwxr-xr-x
makedumpfile	376.52 KB	-rwxr-xr-x
matchpathcon	11.19 KB	-rwxr-xr-x
mii-diag	20.08 KB	-rwxr-xr-x
mii-tool	19.51 KB	-rwxr-xr-x
mkdict	246 B	-rwxr-xr-x
mkdumprd	13.99 KB	-rwxr-xr-x
mke2fs	94.08 KB	-rwxr-xr-x
mkfs	11.25 KB	-rwxr-xr-x
mkfs.btrfs	366.45 KB	-rwxr-xr-x
mkfs.cramfs	36.16 KB	-rwxr-xr-x
mkfs.ext2	94.08 KB	-rwxr-xr-x
mkfs.ext3	94.08 KB	-rwxr-xr-x
mkfs.ext4	94.08 KB	-rwxr-xr-x
mkfs.minix	36.27 KB	-rwxr-xr-x
mkfs.xfs	359.8 KB	-rwxr-xr-x
mkhomedir_helper	19.05 KB	-rwxr-xr-x
mklost+found	11.11 KB	-rwxr-xr-x
mkswap	69.64 KB	-rwxr-xr-x
modinfo	143.24 KB	-rwxr-xr-x
modprobe	143.24 KB	-rwxr-xr-x
modsec-sdbm-util	22.17 KB	-rwxr-x---
mount.nfs	114.68 KB	-rwsr-xr-x
mount.nfs4	114.68 KB	-rwsr-xr-x
mountstats	40.59 KB	-rwxr-xr-x
mysqld	244.14 MB	-rwxr-xr-x
mysqld-debug	165.52 MB	-rwxr-xr-x
named	768.18 KB	-rwxr-xr-x
named-checkconf	32.25 KB	-rwxr-xr-x
named-checkzone	32.06 KB	-rwxr-xr-x
named-compilezone	32.06 KB	-rwxr-xr-x
named-journalprint	11.13 KB	-rwxr-xr-x
nameif	15.32 KB	-rwxr-xr-x
netreport	10.96 KB	-rwxr-sr-x
new-kernel-pkg	24.96 KB	-rwxr-xr-x
newusers	93.45 KB	-rwxr-xr-x
nfsdcltrack	40.11 KB	-rwxr-xr-x
nfsidmap	19.32 KB	-rwxr-xr-x
nfsiostat	23.64 KB	-rwxr-xr-x
nfsstat	29.84 KB	-rwxr-xr-x
nl-class-add	11.7 KB	-rwxr-xr-x
nl-class-delete	11.55 KB	-rwxr-xr-x
nl-class-list	11.48 KB	-rwxr-xr-x
nl-classid-lookup	11.29 KB	-rwxr-xr-x
nl-cls-add	11.76 KB	-rwxr-xr-x
nl-cls-delete	11.68 KB	-rwxr-xr-x
nl-cls-list	11.58 KB	-rwxr-xr-x
nl-link-list	11.52 KB	-rwxr-xr-x
nl-pktloc-lookup	11.36 KB	-rwxr-xr-x
nl-qdisc-add	11.6 KB	-rwxr-xr-x
nl-qdisc-delete	11.54 KB	-rwxr-xr-x
nl-qdisc-list	11.63 KB	-rwxr-xr-x
nologin	7.01 KB	-rwxr-xr-x
nscd	180.02 KB	-rwxr-xr-x
nsec3hash	11.13 KB	-rwxr-xr-x
nstat	23.88 KB	-rwxr-xr-x
osd_login	2.55 KB	-rwxr-xr-x
ownership	15.04 KB	-rwxr-xr-x
packer	11.06 KB	-rwxr-xr-x
pam_console_apply	39.69 KB	-rwxr-xr-x
pam_tally2	15.05 KB	-rwxr-xr-x
pam_timestamp_check	10.97 KB	-rwsr-xr-x
paperconfig	4.07 KB	-rwxr-xr-x
parted	77.22 KB	-rwxr-xr-x
partprobe	11.23 KB	-rwxr-xr-x
partx	86.55 KB	-rwxr-xr-x
pdns_server	98.68 MB	-rwxr-xr-x
pidof	23.17 KB	-rwxr-xr-x
ping6	64.63 KB	-rwxr-xr-x
pivot_root	11.19 KB	-rwxr-xr-x
plipconfig	11.06 KB	-rwxr-xr-x
pluginviewer	15.23 KB	-rwxr-xr-x
plymouth-set-default-theme	6.21 KB	-rwxr-xr-x
plymouthd	84.22 KB	-rwxr-xr-x
poweroff	704.8 KB	-rwxr-xr-x
ppp-watch	23.2 KB	-rwxr-xr-x
pure-authd	18.37 KB	-rwxr-xr-x
pure-certd	18.27 KB	-rwxr-xr-x
pure-config.pl	4.64 KB	-rwxr-xr-x
pure-ftpd	173.28 KB	-rwxr-xr-x
pure-ftpwho	25.96 KB	-rwxr-xr-x
pure-mrtginfo	9.93 KB	-rwxr-xr-x
pure-quotacheck	13.95 KB	-rwxr-xr-x
pure-uploadscript	14.21 KB	-rwxr-xr-x
pwck	51.71 KB	-rwxr-xr-x
pwconv	47.57 KB	-rwxr-xr-x
pwhistory_helper	15.44 KB	-rwxr-xr-x
pwunconv	47.59 KB	-rwxr-xr-x
quot	70.66 KB	-rwxr-xr-x
quotacheck	107.29 KB	-rwxr-xr-x
quotaoff	75.03 KB	-rwxr-xr-x
quotaon	75.03 KB	-rwxr-xr-x
quotastats	14.03 KB	-rwxr-xr-x
rdisc	23.17 KB	-rwxr-xr-x
rdma	73.42 KB	-rwxr-xr-x
readprofile	15.46 KB	-rwxr-xr-x
reboot	704.8 KB	-rwxr-xr-x
repquota	75.16 KB	-rwxr-xr-x
request-key	19.41 KB	-rwxr-xr-x
resize2fs	48.41 KB	-rwxr-xr-x
resizepart	32.36 KB	-rwxr-xr-x
restorecon	27.16 KB	-rwxr-xr-x
rmmod	143.24 KB	-rwxr-xr-x
rndc	35.88 KB	-rwxr-xr-x
rndc-confgen	19.44 KB	-rwxr-xr-x
rotatelogs	53 KB	-rwxr-xr-x
route	66.6 KB	-rwxr-xr-x
routef	173 B	-rwxr-xr-x
routel	1.59 KB	-rwxr-xr-x
rpc.gssd	88.73 KB	-rwxr-xr-x
rpc.idmapd	48.13 KB	-rwxr-xr-x
rpc.mountd	128.91 KB	-rwxr-xr-x
rpc.nfsd	40.2 KB	-rwxr-xr-x
rpc.rquotad	78.95 KB	-rwxr-xr-x
rpc.statd	97.59 KB	-rwxr-xr-x
rpcbind	60.07 KB	-rwxr-xr-x
rpcdebug	18.05 KB	-rwxr-xr-x
rpcinfo	27.3 KB	-rwxr-xr-x
rsyslogd	648.45 KB	-rwxr-xr-x
rtacct	41.93 KB	-rwxr-xr-x
rtcwake	31.96 KB	-rwxr-xr-x
rtmon	48.67 KB	-rwxr-xr-x
rtpr	37 B	-rwxr-xr-x
rtstat	20.09 KB	-rwxr-xr-x
runlevel	704.8 KB	-rwxr-xr-x
runq	1.33 MB	-rwsr-xr-x
runuser	32.21 KB	-rwxr-xr-x
safe_finger	11.08 KB	-rwxr-xr-x
saslauthd	92.59 KB	-rwxr-xr-x
sasldblistusers2	19.26 KB	-rwxr-xr-x
saslpasswd2	15.09 KB	-rwxr-xr-x
sefcontext_compile	60.53 KB	-rwxr-xr-x
selabel_digest	11.17 KB	-rwxr-xr-x
selabel_lookup	11.14 KB	-rwxr-xr-x
selabel_lookup_best_match	11.16 KB	-rwxr-xr-x
selabel_partial_match	11.09 KB	-rwxr-xr-x
selinux_restorecon	15.21 KB	-rwxr-xr-x
selinuxconlist	11.1 KB	-rwxr-xr-x
selinuxdefcon	11.12 KB	-rwxr-xr-x
selinuxenabled	6.98 KB	-rwxr-xr-x
selinuxexeccon	7.09 KB	-rwxr-xr-x
semanage	42.76 KB	-rwxr-xr-x
semodule	23.77 KB	-rwxr-xr-x
sendmail	13.48 KB	-rwxr-sr-x
service	3.17 KB	-rwxr-xr-x
sestatus	15.02 KB	-rwxr-xr-x
setcap	11.13 KB	-rwxr-xr-x
setenforce	7.05 KB	-rwxr-xr-x
setfiles	27.16 KB	-rwxr-xr-x
setquota	83.16 KB	-rwxr-xr-x
setsebool	14.99 KB	-rwxr-xr-x
sfdisk	83.25 KB	-rwxr-xr-x
showmount	19.56 KB	-rwxr-xr-x
shutdown	704.8 KB	-rwxr-xr-x
sim_server	10.97 KB	-rwxr-xr-x
slattach	42.4 KB	-rwxr-xr-x
sln	743.78 KB	-rwxr-xr-x
sm-notify	68.43 KB	-rwxr-xr-x
smartctl	864.48 KB	-rwxr-xr-x
smartd	670.63 KB	-rwxr-xr-x
snmpd	31.05 KB	-rwxr-xr-x
snmptrapd	31.22 KB	-rwxr-xr-x
ss	128.44 KB	-rwxr-xr-x
sshd	836.91 KB	-rwxr-xr-x
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zramctl	82.23 KB	-rwxr-xr-x

Code Editor : weak-modules

#!/bin/bash
#
# weak-modules - determine which modules are kABI compatible with installed
#                kernels and set up the symlinks in /lib/*/weak-updates.
#
unset LANG LC_ALL LC_COLLATE

tmpdir=$(mktemp -td ${0##*/}.XXXXXX)
trap "rm -rf $tmpdir" EXIT
unset ${!changed_modules_*} ${!changed_initramfs_*}

unset BASEDIR
unset CHECK_INITRAMFS
weak_updates_dir_override=""
default_initramfs_prefix="/boot" # will be combined with BASEDIR
dracut="/sbin/dracut"
depmod="/sbin/depmod"
depmod_orig="$depmod"
declare -a modules
declare -A module_krels
declare -A weak_modules_before

declare -A groups
declare -A grouped_modules

# output of validate_weak_links, one iteration
# short_name -> path
declare -A compatible_modules

# state for update_modules_for_krel (needed for add_kernel case)
# short_name -> path
declare -A installed_modules

# doit:
# A wrapper used whenever we're going to perform a real operation.
doit() {
    [ -n "$verbose" ] && echo "$@"
    [ -n "$dry_run" ] || "$@"
}

# pr_verbose:
# print verbose -- wrapper used to print extra messages if required
pr_verbose() {
    [ -n "$verbose" ] && echo "$@"
}

# pr_warning:
# print warning
pr_warning() {
    echo "WARNING: $*"
}

# 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'
}

# krel_of_module:
# Compute the kernel release of a module.
krel_of_module() {
    local module="$1"

if [ x"${module_krels[$module]+set}" = x"set" ]; then
        # version cached in the array already
        echo "${module_krels[$module]}"
    elif [ -f "$module" ]; then
        krel_of_module_modinfo "$module"
    else
        # Try to extract the kernel release from the path
        # delete case, the .ko already deleted
        set -- "${module#*/lib/modules/}"
        echo "${1%%/*}"
    fi
}

# krel_of_module_modinfo:
# Fetches module version from internal module info
krel_of_module_modinfo() {
    local module="$1"
    /sbin/modinfo -F vermagic "$module" | awk '{print $1}'
}

# weak_updates_dir:
# gives the root directory for the weak-updates
# We need some flexibility here because of dry-run.
weak_updates_dir() {
    local krel="$1"

if [[ -z "$weak_updates_dir_override" ]]; then
        echo "$BASEDIR/lib/modules/$krel/weak-updates"
    else
        echo "$weak_updates_dir_override"
    fi
}

# 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.
# If used with input redirect, should be used as read_module_list < input,
# not input | read_modules_list, the latter spawns a subshell
# and the arrays are not seen in the caller
read_modules_list() {
    local IFS=$'\n'
    modules=($(cat))

for ((n = 0; n < ${#modules[@]}; n++)); do
        if [ ${modules[n]:0:1} != '/' ]; then
            modules[n]="$PWD/${modules[n]}"
        fi
        module_krels["${modules[n]}"]=$(krel_of_module ${modules[n]})
    done
}

decompress_initramfs() {
    local input=$1
    local output=$2

# First, check if this is compressed at all
    if cpio -i -t < "$input" > /dev/null 2>/dev/null; then
        # If this archive contains a file early_cpio, it's a trick. Strip off
        # the early cpio archive and try again.
        if cpio -i -t < "$input" 2>/dev/null | grep -q '^early_cpio$' ; then
            /usr/lib/dracut/skipcpio "$input" > "${tmpdir}/post_early_cpio.img"
            decompress_initramfs "${tmpdir}/post_early_cpio.img" "$output"
            retval="$?"
            rm -f "${tmpdir}/post_early_cpio.img"
            return $retval
        fi

cp "$input" "$output"
        return 0
    fi

# Try gzip
    if gzip -cd < "$input" > "$output" 2>/dev/null ; then
        return 0
    fi

# Next try xz
    if xz -cd < "$input" > "$output" 2>/dev/null ; then
        return 0
    fi

echo "Unable to decompress $input: Unknown format" >&2
    return 1
}

# List all module files and modprobe configuration that could require a new
# initramfs. The current directory must be the root of the uncompressed
# initramfs. The unsorted list of files is output to stdout.
list_module_files() {
    find . -iname \*.ko -o -iname '*.ko.xz' -o -iname '*.ko.gz' 2>/dev/null
    find etc/modprobe.d usr/lib/modprobe.d -name \*.conf 2>/dev/null
}

# 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"

decompress_initramfs "$old_initramfs" "$tmpdir/old_initramfs.img"
    pushd "$tmpdir/old_initramfs" >/dev/null
    cpio -i < "$tmpdir/old_initramfs.img" 2>/dev/null
    rm "$tmpdir/old_initramfs.img"
    n=0; for i in `list_module_files|sort`; do
        old_initramfs_modules[n]="$i"
        n=$((n+1))
    done
    popd >/dev/null

decompress_initramfs "$new_initramfs" "$tmpdir/new_initramfs.img"
    pushd "$tmpdir/new_initramfs" >/dev/null
    cpio -i < "$tmpdir/new_initramfs.img" 2>/dev/null
    rm "$tmpdir/new_initramfs.img"
    n=0; for i in `list_module_files|sort`; do
        new_initramfs_modules[n]="$i"
        n=$((n+1))
    done
    popd >/dev/null

# Compare the length and contents of the arrays
    if [ "${#old_initramfs_modules[@]}" == "${#new_initramfs_modules[@]}" -a \
         "${old_initramfs_modules[*]}" == "${new_initramfs_modules[*]}" ];
    then
        # If the file lists are the same, compare each file to find any that changed
        for ((n = 0; n < ${#old_initramfs_modules[@]}; n++)); do
            if ! cmp "$tmpdir/old_initramfs/${old_initramfs_modules[n]}" \
                     "$tmpdir/new_initramfs/${new_initramfs_modules[n]}" \
                     >/dev/null 2>&1
            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
}

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. Note: it doesn't attempt 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=$2
    declare orig_module=$module

module=${module%.ko}
    [[ $module == $orig_module ]] && module=${module%.ko.xz}
    [[ $module == $orig_module ]] && module=${module%.ko.gz}
    module=${module##*/}

eval "changed_modules_${krel//[^a-zA-Z0-9]/_}=$krel"
    eval "changed_initramfs_${krel//[^a-zA-Z0-9]/_}=$krel"

}

# module_weak_link:
# Generate a weak link path for the module.
# Takes module file name and the target kernel release as arguments
# The way of generation intentionally left from the initial version
module_weak_link() {
    local module="$1"
    local krel="$2"
    local module_krel
    local subpath

module_krel="$(krel_of_module "$module")"
    subpath=$(echo $module | sed -nre "s:$BASEDIR(/usr)?/lib/modules/$module_krel/([^/]*)/(.*):\3:p")

if [[ -z $subpath ]]; then
        # module is not in /lib/modules/$krel?
        # It's possible for example for Oracle ACFS compatibility check
        # Install it with its full path as a /lib/modules subpath
        subpath="$module"
    fi

echo "$(weak_updates_dir $krel)/${subpath#/}"
}

# module_short_name:
# 'basename' version purely in bash, cuts off path from the filename
module_short_name() {
    echo "${1##*/}"
}

#### Helper predicates

# is_weak_for_module_valid:
# Takes real module filename and target kernel as arguments.
# Calculates weak symlink filename for the corresponding module
# for the target kernel,
# returns 'true' if the symlink filename is a symlink
# and the symlink points to a readable file
# EVEN if it points to a different filename
is_weak_for_module_valid() {
    local module="$1"
    local krel="$2"
    local weak_link

weak_link="$(module_weak_link $module $krel)"
    [[ -L "$weak_link" ]] && [[ -r "$weak_link" ]]
}

# is_weak_link:
# Takes a filename and a kernel release.
# 'true' if the filename is symlink under weak-updates/ for the kernel.
# It doesn't matter, if it's a valid symlink (points to a real file) or not.
is_weak_link() {
    local link="$1"
    local krel="$2"

echo $link | grep -q "$(weak_updates_dir $krel)" || return 1
    [[ -L $link ]]
}

# is_extra_exists:
# Takes a module filename, the module's kernel release and target kernel release.
# The module filename should be a real, not a symlink, filename (i.e. in extra/).
# Returns 'true' if the same module exists for the target kernel.
is_extra_exists() {
    local module="$1"
    local module_krel="$2"
    local krel="$3"
    local subpath="${module#*/lib/modules/$module_krel/extra/}"

[[ -f $BASEDIR/lib/modules/$krel/extra/$subpath ]]
}

is_kernel_installed() {
    local krel="$1"

[[ -f "$BASEDIR/boot/symvers-$krel.gz" ]]
}

is_empty_file() {
    local file="$1"

[[ "$(wc -l "$file" | cut -f 1 -d ' ')" == 0 ]]
}

#### Helpers

# find_modules:
# Takes kernel release and a list of subdirectories.
# Produces list of module files in the subdirectories for the kernel
find_modules() {
    local krel="$1"
    shift
    local dirs="$*"

for dir in $dirs; do
        find $BASEDIR/lib/modules/$krel/$dir \
             -name '*.ko' -o -name '*.ko.xz' -o -name '*.ko.gz' \
             2>/dev/null
    done
}

# find_modules_dirs:
# Takes a list of directories.
# Produces list of module files in the subdirectories
find_modules_dirs() {
    local dirs="$*"

for dir in $dirs; do
        find $dir -name '*.ko' -o -name '*.ko.xz' -o -name '*.ko.gz' \
             2>/dev/null
    done
}

# find_installed_kernels:
# Produces list of kernels, which modules are still installed
find_installed_kernels() {
    ls $BASEDIR/lib/modules/
}

# find_kernels_with_extra:
# Produces list of kernels, where exists extra/ directory
find_kernels_with_extra() {
    local krel
    local extra_dir

for krel in $(find_installed_kernels); do
        extra_dir="$BASEDIR/lib/modules/$krel/extra"
        [[ -d "$extra_dir" ]] || continue
        echo "$krel"
    done
}

# remove_weak_link_quiet:
# Takes symlink filename and target kernel release.
# Removes the symlink and the directory tree
# if it was the last file in the tree
remove_weak_link_quiet() {
    local link="$1"
    local krel="$2"
    local subpath="${link#*$(weak_updates_dir $krel)}"

rm -f $link
    ( cd "$(weak_updates_dir $krel)" && \
          rmdir --parents --ignore-fail-on-non-empty "$(dirname "${subpath#/}")" 2>/dev/null )
}

# prepare_sandbox:
# Takes kernel release, creates temporary weak-modules directory for it
# and depmod config to operate on it.
# Sets the global state accordingly

prepare_sandbox() {
    local krel="$1"
    local orig_dir
    local dir
    local conf="$tmpdir/depmod.conf"

#directory
    orig_dir=$(weak_updates_dir $krel)
    dir="$tmpdir/$krel/weak-updates"

mkdir -p "$dir"
    # the orig_dir can be empty
    cp -R "$orig_dir"/* "$dir" 2>/dev/null

weak_updates_dir_override="$dir"

#config
    echo "search external extra built-in weak-updates" >"$conf"
    echo "external * $dir" >>"$conf"

depmod="$depmod_orig -C $conf"
}

# finish_sandbox:
# restore global state after sandboxing
# copy configuration to the kernel directory if not dry run
finish_sandbox() {
    local krel="$1"
    local override="$weak_updates_dir_override"
    local wa_dir

weak_updates_dir_override=""
    depmod="$depmod_orig"

[[ -n "$dry_run" ]] && return

wa_dir="$(weak_updates_dir $krel)"

rm -rf "$wa_dir"
    mkdir -p "$wa_dir"

cp -R "${override}"/* "$wa_dir" 2>/dev/null
}

# discard_installed:
# remove installed_modules[] from modules[]
discard_installed()
{
    local short_name

for m in "${!modules[@]}"; do
        short_name="$(module_short_name "${modules[$m]}")"

[[ -z "${installed_modules[$short_name]}" ]] && continue

unset "modules[$m]"
    done
}

# update_installed:
# add compatible_modules[] to installed_modules[]
update_installed()
{
    for m in "${!compatible_modules[@]}"; do
        installed_modules[$m]="${compatible_modules[$m]}"
    done
}

#### Main logic

# update_modules_for_krel:
# Takes kernel release and "action" function name.
# Skips kernel without symvers,
# otherwise triggers the main logic of modules installing/removing
# for the given kernel, which is:
# - save current state of weak modules symlinks
# - install/remove the symlinks for the given (via stdin) list of modules
# - validate the state and remove invalid symlinks
#   (for the modules, which are not compatible (became incompatible) for
#   the given kernel)
# - check the state after validation to produce needed messages
#   and trigger initrd regeneration if the list changed.
#
update_modules_for_krel() {
    local krel="$1"
    local func="$2"
    local force_update="$3"

[[ -r "$BASEDIR/boot/symvers-$krel.gz" ]] || return

prepare_sandbox $krel

global_link_state_save $krel

# remove already installed from modules[]
    discard_installed

# do not run heavy validation procedure if no modules to install
    if [[ "${#modules[@]}" -eq 0 ]]; then
        finish_sandbox $krel
        return
    fi

$func $krel

if ! validate_weak_links $krel && [[ -z "$force_update" ]]; then
        global_link_state_restore $krel
    fi

# add compatible to installed
    update_installed

global_link_state_announce_changes $krel

finish_sandbox $krel
}

# update_modules:
# Common entry point for add/remove modules command
# Takes the "action" function, the module list is supplied via stdin.
# Reads the module list and triggers modules update for all installed
# kernels.
# Triggers initrd rebuild for the kernels, which modules are installed.
update_modules() {
    local func="$1"
    local force_update="$2"
    local module_krel
    declare -a saved_modules

read_modules_list || exit 1
    [[ ${#modules[@]} -gt 0 ]] || return
    saved_modules=("${modules[@]}")

for krel in $(find_installed_kernels); do
        update_modules_for_krel $krel $func $force_update
        modules=("${saved_modules[@]}")
        installed_modules=()
    done

for module in "${modules[@]}"; do
        # Module was built against this kernel, update initramfs.
        module_krel="${module_krels[$module]}"
        module_has_changed $module $module_krel
    done
}

# add_weak_links:
# Action function for the "add-modules" command
# Takes the kernel release, where the modules are added
# and the modules[] and module_krels[] global arrays.
# Install symlinks for the kernel with minimal checks
# (just filename checks, no symbol checks)
add_weak_links() {
    local krel="$1"
    local module_krel
    local weak_link

for module in "${modules[@]}"; do
        module_krel="$(krel_of_module $module)"

case "$module" in
            $BASEDIR/lib/modules/$krel/*)
                # Module already installed to the current kernel
                continue ;;
        esac

if is_extra_exists $module $module_krel $krel; then
            pr_verbose "found $(module_short_name $module) for $krel while installing for $module_krel, update case?"
        fi

if is_weak_for_module_valid $module $krel; then
            pr_verbose "weak module for $(module_short_name $module) already exists for kernel $krel, update case?"
            # we should update initrd in update case,
            # the change is not seen by the symlink detector
            # (global_link_state_announce_changes())
            module_has_changed $module $krel
        fi

weak_link="$(module_weak_link $module $krel)"

mkdir -p "$(dirname $weak_link)"
        ln -sf $module $weak_link

done
}

# remove_weak_links:
# Action function for the "remove-modules" command
# Takes the kernel release, where the modules are removed
# and the modules[] and module_krels[] global arrays.
# Removes symlinks from the given kernel if they are installed
# for the modules in the list.
remove_weak_links() {
    local krel="$1"
    local weak_link
    local target
    local module_krel

for module in "${modules[@]}"; do
        module_krel="$(krel_of_module $module)"

weak_link="$(module_weak_link $module $krel)"
        target="$(readlink $weak_link)"

if [[ "$module" != "$target" ]]; then
            pr_verbose "Skipping symlink $weak_link"
            continue
        fi
        # In update case the --remove-modules call is performed
        # after --add-modules (from postuninstall).
        # So, we shouldn't really remove the symlink in this case.
        # But in the remove case the actual target already removed.
        if ! is_weak_for_module_valid "$module" "$krel"; then
            remove_weak_link_quiet "$weak_link" "$krel"
        fi
    done
}

# validate_weak_links:
# Takes kernel release.
# Checks if all the weak symlinks are suitable for the given kernel.
# Uses depmod to perform the actual symbol checks and parses the output.
# Since depmod internally creates the module list in the beginning of its work
# accroding to the priority list in its configuration, but without symbol
# check and doesn't amend the list during the check, the function runs it
# in a loop in which it removes discovered incompatible symlinks
#
# Returns 0 (success) if proposal is fine or
#         1 (false) if some incompatible symlinks were removed
# initializes global hashmap compatible_modules with all the valid ones
validate_weak_links() {
    local krel="$1"
    local basedir=${BASEDIR:+-b $BASEDIR}
    local tmp
    declare -A symbols
    local is_updates_changed=1
    local module
    local module_krel
    local target
    local modpath
    local symbol
    local weak_link
    # to return to caller that original proposal is not valid
    # here 0 is true, 1 is false, since it will be the return code
    local is_configuration_valid=0

tmp=$(mktemp -p $tmpdir)
    compatible_modules=()

if ! [[ -e $tmpdir/symvers-$krel ]]; then
        [[ -e $BASEDIR/boot/symvers-$krel.gz ]] || return
        zcat $BASEDIR/boot/symvers-$krel.gz > $tmpdir/symvers-$krel
    fi

while ((is_updates_changed)); do
        is_updates_changed=0

# again $tmp because of subshell, see read_modules_list() comment
        # create incompatibility report by depmod
        # Shorcut if depmod finds a lot of incompatible modules elsewhere,
        # we care only about weak-updates
        $depmod $basedir -naeE $tmpdir/symvers-$krel $krel 2>&1 1>/dev/null | \
            grep "$(weak_updates_dir $krel)" 2>/dev/null >$tmp
        # parse it into symbols[] associative array in form a-la
        #   symbols["/path/to/the/module"]="list of bad symbols"
        while read line; do
            set -- $(echo $line | awk '/needs unknown symbol/{print $3 " " $NF}')
            modpath=$1
            symbol=$2
            if [[ -n "$modpath" ]]; then
                symbols[$modpath]="${symbols[$modpath]} $symbol"
                continue
            fi

set -- $(echo $line | awk '/disagrees about version of symbol/{print $3 " " $NF}')
            modpath=$1
            symbol=$2
            if [[ -n "$modpath" ]]; then
                symbols[$modpath]="${symbols[$modpath]} $symbol"
                continue
            fi
        done < $tmp

# loop through all the weak links from the list of incompatible
        # modules and remove them. Skips non-weak incompatibilities
        for modpath in "${!symbols[@]}"; do
            is_weak_link $modpath $krel || continue

target=$(readlink $modpath)
            module_krel=$(krel_of_module $target)

remove_weak_link_quiet "$modpath" "$krel"

pr_verbose "Module $(module_short_name $modpath) from kernel $module_krel is not compatible with kernel $krel in symbols: ${symbols[$modpath]}"
            is_updates_changed=1
            is_configuration_valid=1 # inversed value
        done
    done
    rm -f $tmp

# this loop is just to produce verbose compatibility messages
    # for the compatible modules
    for module in "${modules[@]}"; do
        is_weak_for_module_valid $module $krel || continue

weak_link="$(module_weak_link $module $krel)"
        target="$(readlink $weak_link)"
        module_krel=$(krel_of_module $target)

if [[ "$module" == "$target" ]]; then
            short_name="$(module_short_name "$module")"
            compatible_modules+=([$short_name]="$module")

pr_verbose "Module ${module##*/} from kernel $module_krel is compatible with kernel $krel"
        fi
    done
    return $is_configuration_valid
}

# global_link_state_save:
# Takes kernel release
# Saves the given kernel's weak symlinks state into the global array
# weak_modules_before[] for later processing
global_link_state_save() {
    local krel="$1"
    local link
    local target

weak_modules_before=()
    for link in $(find_modules_dirs $(weak_updates_dir $krel) | xargs); do
        target=$(readlink $link)
        weak_modules_before[$link]=$target
    done
}

# global_link_state_restore:
# Takes kernel release
# Restores the previous weak links state
# (for example, if incompatible modules were installed)
global_link_state_restore() {
    local krel="$1"
    local link
    local target

pr_verbose "Falling back weak-modules state for kernel $krel"

( cd "$(weak_updates_dir $krel)" 2>/dev/null && rm -rf * )

for link in "${!weak_modules_before[@]}"; do
        target=${weak_modules_before[$link]}

mkdir -p "$(dirname $link)"
        ln -sf $target $link
    done
}

# global_link_state_announce_changes:
# Takes kernel release
# Reads the given kernel's weak symlinks state, compares to the saved,
# triggers initrd rebuild if there were changes
# and produces message on symlink removal
global_link_state_announce_changes() {
    local krel="$1"
    local link
    local target
    local new_target
    declare -A weak_modules_after

for link in $(find_modules_dirs $(weak_updates_dir $krel) | xargs); do
        target=${weak_modules_before[$link]}
        new_target=$(readlink $link)
        weak_modules_after[$link]=$new_target

# report change of existing link and appearing of a new link
        [[ "$target" == "$new_target" ]] || module_has_changed $new_target $krel
    done

for link in "${!weak_modules_before[@]}"; do
        target=${weak_modules_before[$link]}
        new_target=${weak_modules_after[$link]}

# report change of existing link and disappearing of an old link
        [[ "$target" == "$new_target" ]] && continue
        module_has_changed $target $krel
        [[ -n "$new_target" ]] ||
            pr_verbose "Removing compatible module $(module_short_name $target) from kernel $krel"
    done
}

# remove_modules:
# Read in a list of modules from stdinput and process them for removal.
# Parameter (noreplace) is deprecated, acts always as "noreplace".
# There is no sense in the "replace" functionality since according
# to the current requirements RPM will track existing of only one version
# of extra/ module (no same extra/ modules for different kernels).
remove_modules() {
    update_modules remove_weak_links force_update
}

# add_modules:
# Read in a list of modules from stdinput and process them for compatibility
# with installed kernels under /lib/modules.
add_modules() {
    no_force_update=""

update_modules add_weak_links $no_force_update
}

# do_make_groups:
# Takes tmp file which contains preprocessed modules.dep
# output (or modules.dep)
#
# reads modules.dep format information from stdin
# produces groups associative array
# the group is a maximum subset of modules having at least a link
#
# more fine tuned extra filtering.
do_make_groups()
{
    local tmp="$1"
    local group_name
    local mod
    declare -a mods

while read i; do
        mods=($i)

echo "${mods[0]}" |grep -q "extra/" || continue

# if the module already met, then its dependencies already counted
        module_group="${grouped_modules[${mods[0]}]}"
        [[ -n $module_group ]] && continue

# new group
        group_name="${mods[0]}"

for mod in "${mods[@]}"; do
            echo "$mod" |grep -q "extra/" || continue

# if there is already such group,
            # it is a subset of the one being created
            # due to depmod output
            unset groups[$mod]

# extra space doesn't matter, since later (in add_kernel())
            # it is expanded without quotes
            groups[$group_name]+=" $mod"
            grouped_modules[$mod]=$group_name
        done
    done < $tmp # avoid subshell
}

# filter_depmod_deps:
# preprocess output for make_groups
# depmod -n produces also aliases, so it cuts them off
# also it removes colon after the first module
cut_depmod_deps()
{
    awk 'BEGIN { pr = 1 } /^#/{ pr = 0 } pr == 1 {sub(":",""); print $0}'
}

# filter_extra_absoluted:
# Takes kernel version
# makes full path from the relative module path
# (produced by depmod for in-kernel-dir modules)
# filter only extra/ modules
filter_extra_absoluted()
{
    local kver="$1"
    local mod
    declare -a mods

while read i; do
        # skip non-extra. The check is not perfect, but ok
        # to speed up handling in general cases
        echo "$i" |grep -q "extra/" || continue

mods=($i)
        for j in "${!mods[@]}"; do
            mod="${mods[$j]}"

[[ ${mod:0:1} == "/" ]] || mod="$BASEDIR/lib/modules/$kver/$mod"
            mods[$j]="$mod"
        done
        echo "${mods[@]}"
    done
}

# make_groups:
# takes k -- kernel version, we are installing extras from
# prepares and feeds to do_make_groups
# to create the module groups (global)
make_groups()
{
    local k="$1"
    local tmp2=$(mktemp -p $tmpdir)
    local basedir=${BASEDIR:+-b $BASEDIR}

groups=()
    grouped_modules=()

$depmod -n $basedir $k 2>/dev/null |
        cut_depmod_deps | filter_extra_absoluted $k > $tmp2

do_make_groups $tmp2

rm -f $tmp2
}

add_kernel() {
    local krel=${1:-$(uname -r)}
    local tmp
    local no_force_update=""
    local num

tmp=$(mktemp -p $tmpdir)

if [ ! -e "$BASEDIR/boot/symvers-$krel.gz" ]; then
        echo "Symvers dump file $BASEDIR/boot/symvers-$krel.gz" \
             "not found" >&2
        exit 1
    fi

for k in $(find_kernels_with_extra | rpmsort -r); do
        [[ "$krel" == "$k" ]] && continue
        find_modules $k extra > $tmp

is_empty_file "$tmp" || make_groups $k

# reuse tmp

# optimization, check independent modules in one run.
	# first try groups with one element in each.
	# it means independent modules, so we can safely remove
	# incompatible links
	# some cut and paste here

echo > $tmp
        for g in "${groups[@]}"; do
	    num="$(echo "$g" | wc -w)"
	    [ "$num" -gt 1 ] && continue

printf '%s\n' $g >> $tmp
	done
        # to avoid subshell, see the read_modules_list comment
        read_modules_list < $tmp
        update_modules_for_krel $krel add_weak_links force_update

for g in "${groups[@]}"; do
	    num="$(echo "$g" | wc -w)"
	    [ "$num" -eq 1 ] && continue

printf '%s\n' $g > $tmp
            read_modules_list < $tmp
            update_modules_for_krel $krel add_weak_links $no_force_update
        done
    done

rm -f $tmp

}

remove_kernel() {
    remove_krel=${1:-$(uname -r)}
    weak_modules="$(weak_updates_dir $remove_krel)"
    module_has_changed $weak_modules $remove_krel

# Remove everything beneath the weak-updates directory
    ( cd "$weak_modules" && doit rm -rf * )
}

################################################################################
################################## 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 \
                     --long basedir:,dracut:,check-initramfs-prog: -- "$@"`

[ $? -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
        # --dry-run option is not pure dry run anymore,
        # because of depmod used internally.
        # For add/remove modules we have to add/remove the symlinks
        # and just restore the original configuration afterwards.
        ;;
    --no-initramfs)
        no_initramfs=1
        ;;
    --verbose)
        verbose=1
        ;;
    --delete-modules)
        pr_warning "--delete-modules is deprecated, no effect"
        ;;
    --basedir)
        BASEDIR="$2"
        shift
        ;;
    --dracut)
        dracut="$2"
        shift
        ;;
    --check-initramfs-prog)
        CHECK_INITRAMFS="$2"
        shift
        ;;
    -h|--help)
        usage 0
        ;;
    --)
        shift
        break
        ;;
    esac
    shift
done

if [ ! -x "$dracut" ]
then
    echo "weak-modules: this tool requires a dracut-enabled kernel"
    exit 1
fi

initramfs_prefix="$BASEDIR/${default_initramfs_prefix#/}"

if [ -n "$do_add_modules" ]; then
    add_modules

elif [ -n "$do_remove_modules" ]; then
    remove_modules

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}
    basedir=${BASEDIR:+-b $BASEDIR}

if is_kernel_installed $krel; then
        doit $depmod $basedir -ae -F $BASEDIR/boot/System.map-$krel $krel
    else
        pr_verbose "Skipping depmod for non-installed kernel $krel"
    fi
done

for krel in ${!changed_initramfs_*}; do
    krel=${!krel}

if [ ! -n "$no_initramfs" ]; then
        ${CHECK_INITRAMFS:-check_initramfs} $krel
    fi
done