1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
#!/bin/bash
is_mpath() {
local _dev=$1
[ -e /sys/dev/block/"$_dev"/dm/uuid ] || return 1
[[ $(cat /sys/dev/block/"$_dev"/dm/uuid) =~ mpath- ]] && return 0
return 1
}
majmin_to_mpath_dev() {
local _dev
for i in /dev/mapper/*; do
[[ $i == /dev/mapper/control ]] && continue
_dev=$(get_maj_min "$i")
if [ "$_dev" = "$1" ]; then
echo "$i"
return
fi
done
}
# called by dracut
check() {
# if there's no multipath binary, no go.
require_binaries multipath || return 1
require_binaries kpartx || return 1
[[ $hostonly_mode == "strict" ]] || [[ $mount_needs ]] && {
for_each_host_dev_and_slaves is_mpath || return 255
}
return 0
}
# called by dracut
depends() {
echo rootfs-block
echo dm
return 0
}
# called by dracut
cmdline() {
for m in scsi_dh_alua scsi_dh_emc scsi_dh_rdac dm_multipath; do
if grep -m 1 -q "$m" /proc/modules; then
printf 'rd.driver.pre=%s ' "$m"
fi
done
}
# called by dracut
installkernel() {
local _arch=${DRACUT_ARCH:-$(uname -m)}
local _funcs='scsi_register_device_handler|dm_dirty_log_type_register|dm_register_path_selector|dm_register_target'
if [ "$_arch" = "s390" ] || [ "$_arch" = "s390x" ]; then
_s390drivers="=drivers/s390/scsi"
fi
hostonly='' dracut_instmods -o -s "$_funcs" "=drivers/scsi" "=drivers/md" ${_s390drivers:+"$_s390drivers"}
}
mpathconf_installed() {
find_binary mpathconf &> /dev/null
}
# called by dracut
install() {
local -A _allow
local config_dir
# shellcheck disable=SC2317,SC2329 # called later by for_each_host_dev_and_slaves
add_hostonly_mpath_conf() {
if is_mpath "$1"; then
local _dev
_dev=$(majmin_to_mpath_dev "$1")
[ -z "$_dev" ] && return
_allow["$_dev"]="$_dev"
fi
}
local k v
while read -r k v; do
if [[ $k == "config_dir" ]]; then
v="${v#\"}"
config_dir="${v%\"}"
break
fi
done < <(multipath -t 2> /dev/null)
[[ -d $config_dir ]] || config_dir=/etc/multipath/conf.d
inst_multiple \
"$systemdsystemunitdir"/multipathd.service \
pkill \
kpartx \
dmsetup \
multipath \
multipathd
inst_multiple -o \
mpath_wait \
mpathconf \
mpathpersist \
xdrgetprio \
xdrgetuid \
/etc/xdrdevices.conf \
/etc/multipath.conf \
/etc/multipath/* \
"$config_dir"/* \
"$tmpfilesdir/multipath.conf"
mpathconf_installed \
&& [[ ${hostonly-} ]] && [[ $hostonly_mode == "strict" ]] && {
for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
if ((${#_allow[@]} > 0)); then
local -a _args
local _dev
for _dev in "${_allow[@]}"; do
_args+=("--allow" "$_dev")
done
mpathconf "${_args[@]}" --outfile "${initdir}"/etc/multipath.conf
fi
}
[[ ${hostonly-} ]] || mpathconf_installed || {
for_each_host_dev_and_slaves is_mpath \
|| [[ -f /etc/multipath.conf ]] || {
cat > "${initdir}"/etc/multipath.conf << EOF
# Minimal multipath.conf generated by dracut
# Avoid any devices being multipathed by default
defaults {
find_multipaths strict
}
EOF
}
}
inst partx /sbin/partx
inst_libdir_file "libmultipath*" "multipath/*"
inst_libdir_file 'libgcc_s.so*'
if [[ $hostonly_cmdline == "yes" ]]; then
local _conf
_conf=$(cmdline)
[[ $_conf ]] && echo "$_conf" >> "${initdir}/etc/cmdline.d/90multipath.conf"
fi
if dracut_module_included "systemd"; then
if mpathconf_installed; then
inst_simple "${moddir}/multipathd-configure.service" "${systemdsystemunitdir}/multipathd-configure.service"
$SYSTEMCTL -q --root "$initdir" enable multipathd-configure.service
fi
inst_simple "$moddir/multipathd-dracut.conf" "$systemdsystemunitdir/multipathd.service.d/multipathd-dracut.conf"
$SYSTEMCTL -q --root "$initdir" enable multipathd.service
else
inst_hook pre-trigger 02 "$moddir/multipathd.sh"
inst_hook cleanup 02 "$moddir/multipathd-stop.sh"
fi
inst_hook cleanup 80 "$moddir/multipathd-needshutdown.sh"
inst_hook shutdown 20 "$moddir/multipath-shutdown.sh"
inst_rules 40-multipath.rules 56-multipath.rules \
62-multipath.rules 65-multipath.rules \
66-kpartx.rules 67-kpartx-compat.rules \
11-dm-mpath.rules 11-dm-parts.rules
}
|
