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04b56f3a JK |
1 | #!/bin/bash |
2 | # | |
33ee031c | 3 | # functions used by dracut and other tools. |
04b56f3a | 4 | # |
33ee031c | 5 | # Copyright 2005-2009 Red Hat, Inc. All rights reserved. |
04b56f3a JK |
6 | # |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 2 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
0f9c78c1 | 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
04b56f3a | 19 | # |
258de828 | 20 | export LC_MESSAGES=C |
f4031e8a | 21 | |
561eb42f HH |
22 | # is_func <command> |
23 | # Check whether $1 is a function. | |
24 | is_func() { | |
25 | [[ "$(type -t "$1")" = "function" ]] | |
26 | } | |
27 | ||
eaa924b6 | 28 | |
8d95b8b3 | 29 | # Generic substring function. If $2 is in $1, return 0. |
2c19a5fa CF |
30 | strstr() { [[ $1 = *"$2"* ]]; } |
31 | # Generic glob matching function. If glob pattern $2 matches anywhere in $1, OK | |
32 | strglobin() { [[ $1 = *$2* ]]; } | |
33 | # Generic glob matching function. If glob pattern $2 matches all of $1, OK | |
34 | strglob() { [[ $1 = $2 ]]; } | |
1cadc26f HH |
35 | # returns OK if $1 contains literal string $2 at the beginning, and isn't empty |
36 | str_starts() { [ "${1#"$2"*}" != "$1" ]; } | |
37 | # returns OK if $1 contains literal string $2 at the end, and isn't empty | |
38 | str_ends() { [ "${1%*"$2"}" != "$1" ]; } | |
8d95b8b3 | 39 | |
f4031e8a HH |
40 | # find a binary. If we were not passed the full path directly, |
41 | # search in the usual places to find the binary. | |
42 | find_binary() { | |
a0120420 BZ |
43 | local _delim |
44 | local l | |
45 | local p | |
46 | [[ -z ${1##/*} ]] || _delim="/" | |
47 | ||
48 | if [[ "$1" == *.so* ]]; then | |
49 | for l in libdirs ; do | |
50 | if { $DRACUT_LDD "$dracutsysrootdir$l$_delim$1" &>/dev/null; }; then | |
51 | printf "%s\n" "$1" | |
52 | return 0 | |
53 | fi | |
54 | done | |
55 | if { $DRACUT_LDD "$dracutsysrootdir$_delim$1" &>/dev/null; }; then | |
b093aa2d | 56 | printf "%s\n" "$1" |
f4031e8a HH |
57 | return 0 |
58 | fi | |
59 | fi | |
a0120420 BZ |
60 | if [[ "$1" == */* ]]; then |
61 | if [[ -L $dracutsysrootdir$_delim$1 ]] || [[ -x $dracutsysrootdir$_delim$1 ]]; then | |
62 | printf "%s\n" "$1" | |
63 | return 0 | |
64 | fi | |
65 | fi | |
66 | for p in $DRACUT_PATH ; do | |
67 | if [[ -L $dracutsysrootdir$p$_delim$1 ]] || [[ -x $dracutsysrootdir$p$_delim$1 ]]; then | |
68 | printf "%s\n" "$1" | |
69 | return 0 | |
70 | fi | |
71 | done | |
f4031e8a | 72 | |
a0120420 | 73 | [[ -n "$dracutsysrootdir" ]] && return 1 |
b093aa2d | 74 | type -P "${1##*/}" |
f4031e8a HH |
75 | } |
76 | ||
4fe1bdd4 HH |
77 | ldconfig_paths() |
78 | { | |
a0120420 | 79 | $DRACUT_LDCONFIG ${dracutsysrootdir:+-r ${dracutsysrootdir} -f /etc/ld.so.conf} -pN 2>/dev/null | grep -E -v '/(lib|lib64|usr/lib|usr/lib64)/[^/]*$' | sed -n 's,.* => \(.*\)/.*,\1,p' | sort | uniq |
4fe1bdd4 HH |
80 | } |
81 | ||
f06c2b58 HH |
82 | # Version comparision function. Assumes Linux style version scheme. |
83 | # $1 = version a | |
84 | # $2 = comparision op (gt, ge, eq, le, lt, ne) | |
85 | # $3 = version b | |
86 | vercmp() { | |
87 | local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res | |
88 | ||
89 | for ((_i=0; ; _i++)) | |
90 | do | |
91 | if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0 | |
92 | elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1 | |
93 | elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2 | |
94 | else continue | |
95 | fi | |
96 | break | |
97 | done | |
98 | ||
99 | case $_op in | |
100 | gt) ((_res == 1));; | |
101 | ge) ((_res != 2));; | |
102 | eq) ((_res == 0));; | |
103 | le) ((_res != 1));; | |
104 | lt) ((_res == 2));; | |
105 | ne) ((_res != 0));; | |
106 | esac | |
107 | } | |
108 | ||
87122afc AŻ |
109 | # Create all subdirectories for given path without creating the last element. |
110 | # $1 = path | |
b093aa2d HH |
111 | mksubdirs() { |
112 | [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}" | |
113 | } | |
87122afc | 114 | |
87122afc AŻ |
115 | # Function prints global variables in format name=value line by line. |
116 | # $@ = list of global variables' name | |
117 | print_vars() { | |
29b10e65 | 118 | local _var _value |
87122afc | 119 | |
b093aa2d | 120 | for _var in "$@" |
87122afc | 121 | do |
7a94a432 | 122 | eval printf -v _value "%s" \""\$$_var"\" |
b093aa2d | 123 | [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value" |
87122afc AŻ |
124 | done |
125 | } | |
126 | ||
7e2bca48 HH |
127 | # normalize_path <path> |
128 | # Prints the normalized path, where it removes any duplicated | |
129 | # and trailing slashes. | |
130 | # Example: | |
131 | # $ normalize_path ///test/test// | |
132 | # /test/test | |
626d9eba | 133 | normalize_path() { |
c44e3cb4 MS |
134 | shopt -q -s extglob |
135 | set -- "${1//+(\/)//}" | |
136 | shopt -q -u extglob | |
466a5998 | 137 | printf "%s\n" "${1%/}" |
626d9eba | 138 | } |
d4bb4316 | 139 | |
7e2bca48 HH |
140 | # convert_abs_rel <from> <to> |
141 | # Prints the relative path, when creating a symlink to <to> from <from>. | |
142 | # Example: | |
143 | # $ convert_abs_rel /usr/bin/test /bin/test-2 | |
144 | # ../../bin/test-2 | |
145 | # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test | |
d4bb4316 | 146 | convert_abs_rel() { |
6d2a7942 | 147 | local __current __absolute __abssize __cursize __newpath |
c44e3cb4 | 148 | local -i __i __level |
d4bb4316 | 149 | |
c44e3cb4 MS |
150 | set -- "$(normalize_path "$1")" "$(normalize_path "$2")" |
151 | ||
c1609dd4 | 152 | # corner case #1 - self looping link |
466a5998 | 153 | [[ "$1" == "$2" ]] && { printf "%s\n" "${1##*/}"; return; } |
c1609dd4 MS |
154 | |
155 | # corner case #2 - own dir link | |
466a5998 | 156 | [[ "${1%/*}" == "$2" ]] && { printf ".\n"; return; } |
c1609dd4 | 157 | |
6d2a7942 HH |
158 | IFS="/" __current=($1) |
159 | IFS="/" __absolute=($2) | |
d4bb4316 HH |
160 | |
161 | __abssize=${#__absolute[@]} | |
162 | __cursize=${#__current[@]} | |
163 | ||
b093aa2d | 164 | while [[ "${__absolute[__level]}" == "${__current[__level]}" ]] |
d4bb4316 HH |
165 | do |
166 | (( __level++ )) | |
167 | if (( __level > __abssize || __level > __cursize )) | |
168 | then | |
169 | break | |
170 | fi | |
171 | done | |
172 | ||
173 | for ((__i = __level; __i < __cursize-1; __i++)) | |
174 | do | |
175 | if ((__i > __level)) | |
176 | then | |
177 | __newpath=$__newpath"/" | |
178 | fi | |
179 | __newpath=$__newpath".." | |
180 | done | |
181 | ||
182 | for ((__i = __level; __i < __abssize; __i++)) | |
183 | do | |
184 | if [[ -n $__newpath ]] | |
185 | then | |
186 | __newpath=$__newpath"/" | |
187 | fi | |
188 | __newpath=$__newpath${__absolute[__i]} | |
189 | done | |
190 | ||
466a5998 | 191 | printf "%s\n" "$__newpath" |
d4bb4316 HH |
192 | } |
193 | ||
a20d24de | 194 | |
7e2bca48 | 195 | # get_fs_env <device> |
97af51db | 196 | # Get and the ID_FS_TYPE variable from udev for a device. |
7e2bca48 | 197 | # Example: |
97af51db | 198 | # $ get_fs_env /dev/sda2 |
7e2bca48 | 199 | # ext4 |
9ede1929 | 200 | get_fs_env() { |
7c179686 | 201 | [[ $1 ]] || return |
29b10e65 | 202 | unset ID_FS_TYPE |
69f7ed96 | 203 | ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \ |
6d58fa27 | 204 | | while read line || [ -n "$line" ]; do |
69f7ed96 HH |
205 | if [[ "$line" == TYPE\=* ]]; then |
206 | printf "%s" "${line#TYPE=}"; | |
207 | exit 0; | |
208 | fi | |
209 | done) | |
210 | if [[ $ID_FS_TYPE ]]; then | |
211 | printf "%s" "$ID_FS_TYPE" | |
212 | return 0 | |
7c179686 | 213 | fi |
a5cde2dd HH |
214 | return 1 |
215 | } | |
9ede1929 | 216 | |
7e2bca48 HH |
217 | # get_maj_min <device> |
218 | # Prints the major and minor of a device node. | |
219 | # Example: | |
220 | # $ get_maj_min /dev/sda2 | |
221 | # 8:2 | |
480d772f | 222 | get_maj_min() { |
224175d8 | 223 | local _majmin |
dba20559 HH |
224 | _majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)" |
225 | printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))" | |
480d772f HH |
226 | } |
227 | ||
281327f7 HH |
228 | |
229 | # get_devpath_block <device> | |
230 | # get the DEVPATH in /sys of a block device | |
231 | get_devpath_block() { | |
8552a327 | 232 | local _majmin _i |
281327f7 HH |
233 | _majmin=$(get_maj_min "$1") |
234 | ||
235 | for _i in /sys/block/*/dev /sys/block/*/*/dev; do | |
236 | [[ -e "$_i" ]] || continue | |
237 | if [[ "$_majmin" == "$(<"$_i")" ]]; then | |
238 | printf "%s" "${_i%/dev}" | |
239 | return 0 | |
240 | fi | |
241 | done | |
242 | return 1 | |
243 | } | |
244 | ||
69f7ed96 HH |
245 | # get a persistent path from a device |
246 | get_persistent_dev() { | |
b6054b5d | 247 | local i _tmp _dev _pol |
69f7ed96 HH |
248 | |
249 | _dev=$(get_maj_min "$1") | |
250 | [ -z "$_dev" ] && return | |
251 | ||
b6054b5d MW |
252 | if [[ -n "$persistent_policy" ]]; then |
253 | _pol="/dev/disk/${persistent_policy}/*" | |
254 | else | |
255 | _pol= | |
256 | fi | |
257 | ||
324ea606 | 258 | for i in \ |
b6054b5d | 259 | $_pol \ |
324ea606 | 260 | /dev/mapper/* \ |
324ea606 HH |
261 | /dev/disk/by-uuid/* \ |
262 | /dev/disk/by-label/* \ | |
263 | /dev/disk/by-partuuid/* \ | |
264 | /dev/disk/by-partlabel/* \ | |
265 | /dev/disk/by-id/* \ | |
266 | /dev/disk/by-path/* \ | |
267 | ; do | |
2b9d8f65 | 268 | [[ -e "$i" ]] || continue |
1743473b | 269 | [[ $i == /dev/mapper/control ]] && continue |
69f7ed96 HH |
270 | [[ $i == /dev/mapper/mpath* ]] && continue |
271 | _tmp=$(get_maj_min "$i") | |
272 | if [ "$_tmp" = "$_dev" ]; then | |
273 | printf -- "%s" "$i" | |
274 | return | |
275 | fi | |
276 | done | |
9efb74a3 | 277 | printf -- "%s" "$1" |
69f7ed96 HH |
278 | } |
279 | ||
c82a1133 HH |
280 | expand_persistent_dev() { |
281 | local _dev=$1 | |
282 | ||
283 | case "$_dev" in | |
284 | LABEL=*) | |
285 | _dev="/dev/disk/by-label/${_dev#LABEL=}" | |
286 | ;; | |
287 | UUID=*) | |
288 | _dev="${_dev#UUID=}" | |
93b02f50 | 289 | _dev="${_dev,,}" |
c82a1133 HH |
290 | _dev="/dev/disk/by-uuid/${_dev}" |
291 | ;; | |
292 | PARTUUID=*) | |
293 | _dev="${_dev#PARTUUID=}" | |
93b02f50 | 294 | _dev="${_dev,,}" |
c82a1133 HH |
295 | _dev="/dev/disk/by-partuuid/${_dev}" |
296 | ;; | |
297 | PARTLABEL=*) | |
298 | _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}" | |
299 | ;; | |
300 | esac | |
301 | printf "%s" "$_dev" | |
302 | } | |
303 | ||
324ea606 | 304 | shorten_persistent_dev() { |
c82a1133 HH |
305 | local _dev="$1" |
306 | case "$_dev" in | |
324ea606 | 307 | /dev/disk/by-uuid/*) |
c82a1133 | 308 | printf "%s" "UUID=${_dev##*/}";; |
324ea606 | 309 | /dev/disk/by-label/*) |
c82a1133 | 310 | printf "%s" "LABEL=${_dev##*/}";; |
324ea606 | 311 | /dev/disk/by-partuuid/*) |
c82a1133 | 312 | printf "%s" "PARTUUID=${_dev##*/}";; |
324ea606 | 313 | /dev/disk/by-partlabel/*) |
c82a1133 | 314 | printf "%s" "PARTLABEL=${_dev##*/}";; |
324ea606 | 315 | *) |
c82a1133 | 316 | printf "%s" "$_dev";; |
324ea606 HH |
317 | esac |
318 | } | |
319 | ||
7e2bca48 HH |
320 | # find_block_device <mountpoint> |
321 | # Prints the major and minor number of the block device | |
322 | # for a given mountpoint. | |
323 | # Unless $use_fstab is set to "yes" the functions | |
324 | # uses /proc/self/mountinfo as the primary source of the | |
325 | # information and only falls back to /etc/fstab, if the mountpoint | |
326 | # is not found there. | |
327 | # Example: | |
328 | # $ find_block_device /usr | |
329 | # 8:4 | |
f76ef3aa | 330 | find_block_device() { |
9918afd2 | 331 | local _dev _majmin _find_mpt |
c8d685c9 | 332 | _find_mpt="$1" |
0b706743 | 333 | if [[ $use_fstab != yes ]]; then |
9d36d4fb | 334 | [[ -d $_find_mpt/. ]] |
dba20559 | 335 | findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ |
6d58fa27 | 336 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
337 | if [[ -b $_dev ]]; then |
338 | if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then | |
339 | _majmin=$(get_maj_min $_dev) | |
340 | fi | |
341 | if [[ $_majmin ]]; then | |
466a5998 | 342 | printf "%s\n" "$_majmin" |
dba20559 | 343 | else |
466a5998 | 344 | printf "%s\n" "$_dev" |
dba20559 HH |
345 | fi |
346 | return 0 | |
347 | fi | |
348 | if [[ $_dev = *:* ]]; then | |
466a5998 | 349 | printf "%s\n" "$_dev" |
dba20559 HH |
350 | return 0 |
351 | fi | |
352 | done; return 1; } && return 0 | |
353 | fi | |
354 | # fall back to /etc/fstab | |
355 | ||
356 | findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ | |
6d58fa27 | 357 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
358 | if ! [[ $_dev ]]; then |
359 | _dev="$_majmin" | |
360 | unset _majmin | |
361 | fi | |
9d36d4fb | 362 | if [[ -b $_dev ]]; then |
dba20559 | 363 | [[ $_majmin ]] || _majmin=$(get_maj_min $_dev) |
9d36d4fb | 364 | if [[ $_majmin ]]; then |
466a5998 | 365 | printf "%s\n" "$_majmin" |
9d36d4fb | 366 | else |
466a5998 | 367 | printf "%s\n" "$_dev" |
9d36d4fb HH |
368 | fi |
369 | return 0 | |
370 | fi | |
371 | if [[ $_dev = *:* ]]; then | |
466a5998 | 372 | printf "%s\n" "$_dev" |
9d36d4fb | 373 | return 0 |
cc02093d | 374 | fi |
dba20559 | 375 | done; return 1; } && return 0 |
0b706743 AŻ |
376 | |
377 | return 1 | |
17829e94 VL |
378 | } |
379 | ||
9d36d4fb HH |
380 | # find_mp_fstype <mountpoint> |
381 | # Echo the filesystem type for a given mountpoint. | |
7e2bca48 HH |
382 | # /proc/self/mountinfo is taken as the primary source of information |
383 | # and /etc/fstab is used as a fallback. | |
384 | # No newline is appended! | |
385 | # Example: | |
9d36d4fb | 386 | # $ find_mp_fstype /;echo |
7e2bca48 | 387 | # ext4 |
9d36d4fb HH |
388 | find_mp_fstype() { |
389 | local _fs | |
7ae5d9d1 | 390 | |
9d36d4fb | 391 | if [[ $use_fstab != yes ]]; then |
dba20559 | 392 | findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \ |
6d58fa27 | 393 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
394 | [[ $_fs ]] || continue |
395 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 396 | printf "%s" "$_fs" |
dba20559 HH |
397 | return 0 |
398 | done; return 1; } && return 0 | |
399 | fi | |
400 | ||
401 | findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \ | |
6d58fa27 | 402 | while read _fs || [ -n "$_fs" ]; do |
9d36d4fb HH |
403 | [[ $_fs ]] || continue |
404 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 405 | printf "%s" "$_fs" |
9d36d4fb | 406 | return 0 |
dba20559 | 407 | done; return 1; } && return 0 |
7ae5d9d1 HH |
408 | |
409 | return 1 | |
410 | } | |
411 | ||
9d36d4fb HH |
412 | # find_dev_fstype <device> |
413 | # Echo the filesystem type for a given device. | |
81672479 HH |
414 | # /proc/self/mountinfo is taken as the primary source of information |
415 | # and /etc/fstab is used as a fallback. | |
416 | # No newline is appended! | |
417 | # Example: | |
9d36d4fb | 418 | # $ find_dev_fstype /dev/sda2;echo |
81672479 | 419 | # ext4 |
9d36d4fb | 420 | find_dev_fstype() { |
5e601454 | 421 | local _find_dev _fs |
9d36d4fb | 422 | _find_dev="$1" |
a4f7b504 HH |
423 | if ! [[ "$_find_dev" = /dev* ]]; then |
424 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
425 | fi | |
5e601454 HH |
426 | |
427 | if [[ $use_fstab != yes ]]; then | |
dba20559 | 428 | findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ |
6d58fa27 | 429 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
430 | [[ $_fs ]] || continue |
431 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 432 | printf "%s" "$_fs" |
dba20559 HH |
433 | return 0 |
434 | done; return 1; } && return 0 | |
435 | fi | |
436 | ||
437 | findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ | |
6d58fa27 | 438 | while read _fs || [ -n "$_fs" ]; do |
5e601454 HH |
439 | [[ $_fs ]] || continue |
440 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 441 | printf "%s" "$_fs" |
5e601454 | 442 | return 0 |
dba20559 | 443 | done; return 1; } && return 0 |
5e601454 HH |
444 | |
445 | return 1 | |
97af51db | 446 | } |
5e601454 | 447 | |
bbc9bfe1 HH |
448 | # find_mp_fsopts <mountpoint> |
449 | # Echo the filesystem options for a given mountpoint. | |
450 | # /proc/self/mountinfo is taken as the primary source of information | |
451 | # and /etc/fstab is used as a fallback. | |
452 | # No newline is appended! | |
453 | # Example: | |
454 | # $ find_mp_fsopts /;echo | |
455 | # rw,relatime,discard,data=ordered | |
456 | find_mp_fsopts() { | |
457 | if [[ $use_fstab != yes ]]; then | |
458 | findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0 | |
459 | fi | |
460 | ||
461 | findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1" | |
462 | } | |
463 | ||
97af51db HH |
464 | # find_dev_fsopts <device> |
465 | # Echo the filesystem options for a given device. | |
466 | # /proc/self/mountinfo is taken as the primary source of information | |
467 | # and /etc/fstab is used as a fallback. | |
468 | # Example: | |
469 | # $ find_dev_fsopts /dev/sda2 | |
470 | # rw,relatime,discard,data=ordered | |
471 | find_dev_fsopts() { | |
472 | local _find_dev _opts | |
473 | _find_dev="$1" | |
474 | if ! [[ "$_find_dev" = /dev* ]]; then | |
475 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
476 | fi | |
477 | ||
478 | if [[ $use_fstab != yes ]]; then | |
479 | findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0 | |
480 | fi | |
481 | ||
482 | findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev" | |
81672479 HH |
483 | } |
484 | ||
97af51db | 485 | |
7ae5d9d1 | 486 | # finds the major:minor of the block device backing the root filesystem. |
f76ef3aa VL |
487 | find_root_block_device() { find_block_device /; } |
488 | ||
7e2bca48 | 489 | # for_each_host_dev_fs <func> |
d351541e | 490 | # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
7e2bca48 | 491 | # in ${host_fs_types[@]} |
480d772f HH |
492 | for_each_host_dev_fs() |
493 | { | |
494 | local _func="$1" | |
d0096de7 | 495 | local _dev |
2efa546f | 496 | local _ret=1 |
fd191a7b | 497 | |
e6199960 PL |
498 | [[ "${#host_fs_types[@]}" ]] || return 2 |
499 | ||
fd191a7b | 500 | |
d351541e HH |
501 | for _dev in "${!host_fs_types[@]}"; do |
502 | $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 | |
480d772f | 503 | done |
2efa546f | 504 | return $_ret |
480d772f HH |
505 | } |
506 | ||
fd191a7b HH |
507 | host_fs_all() |
508 | { | |
466a5998 | 509 | printf "%s\n" "${host_fs_types[@]}" |
fd191a7b HH |
510 | } |
511 | ||
17829e94 VL |
512 | # Walk all the slave relationships for a given block device. |
513 | # Stop when our helper function returns success | |
514 | # $1 = function to call on every found block device | |
515 | # $2 = block device in major:minor format | |
0b706743 | 516 | check_block_and_slaves() { |
29b10e65 | 517 | local _x |
17829e94 | 518 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
96c6f6f3 | 519 | if ! lvm_internal_dev $2; then "$1" $2 && return; fi |
533d7dc4 | 520 | check_vol_slaves "$@" && return 0 |
e64dafd1 | 521 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
dba20559 | 522 | check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0 |
a3afcf2a | 523 | fi |
17829e94 | 524 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 |
e64dafd1 HH |
525 | for _x in /sys/dev/block/$2/slaves/*; do |
526 | [[ -f $_x/dev ]] || continue | |
527 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
528 | check_block_and_slaves $1 $(<"$_x/dev") && return 0 | |
17829e94 VL |
529 | done |
530 | return 1 | |
531 | } | |
532 | ||
83e0dc7a DY |
533 | check_block_and_slaves_all() { |
534 | local _x _ret=1 | |
535 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. | |
96c6f6f3 | 536 | if ! lvm_internal_dev $2 && "$1" $2; then |
dba20559 | 537 | _ret=0 |
83e0dc7a | 538 | fi |
c7c8c498 | 539 | check_vol_slaves_all "$@" && return 0 |
e64dafd1 | 540 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
dba20559 | 541 | check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0 |
83e0dc7a DY |
542 | fi |
543 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 | |
e64dafd1 HH |
544 | for _x in /sys/dev/block/$2/slaves/*; do |
545 | [[ -f $_x/dev ]] || continue | |
546 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
547 | check_block_and_slaves_all $1 $(<"$_x/dev") && _ret=0 | |
83e0dc7a DY |
548 | done |
549 | return $_ret | |
550 | } | |
551 | # for_each_host_dev_and_slaves <func> | |
552 | # Execute "<func> <dev>" for every "<dev>" found | |
553 | # in ${host_devs[@]} and their slaves | |
554 | for_each_host_dev_and_slaves_all() | |
555 | { | |
556 | local _func="$1" | |
557 | local _dev | |
558 | local _ret=1 | |
fd191a7b | 559 | |
e6199960 | 560 | [[ "${host_devs[@]}" ]] || return 2 |
fd191a7b | 561 | |
3721635b | 562 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 563 | [[ -b "$_dev" ]] || continue |
83e0dc7a | 564 | if check_block_and_slaves_all $_func $(get_maj_min $_dev); then |
dba20559 | 565 | _ret=0 |
83e0dc7a DY |
566 | fi |
567 | done | |
568 | return $_ret | |
569 | } | |
570 | ||
571 | for_each_host_dev_and_slaves() | |
572 | { | |
573 | local _func="$1" | |
574 | local _dev | |
fd191a7b | 575 | |
e6199960 | 576 | [[ "${host_devs[@]}" ]] || return 2 |
fd191a7b | 577 | |
3721635b | 578 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 579 | [[ -b "$_dev" ]] || continue |
a999414e | 580 | check_block_and_slaves $_func $(get_maj_min $_dev) && return 0 |
83e0dc7a DY |
581 | done |
582 | return 1 | |
583 | } | |
584 | ||
533d7dc4 HH |
585 | # ugly workaround for the lvm design |
586 | # There is no volume group device, | |
587 | # so, there are no slave devices for volume groups. | |
588 | # Logical volumes only have the slave devices they really live on, | |
589 | # but you cannot create the logical volume without the volume group. | |
95bde758 | 590 | # And the volume group might be bigger than the devices the LV needs. |
533d7dc4 | 591 | check_vol_slaves() { |
9ed6eb74 HH |
592 | local _lv _vg _pv _dm _majmin |
593 | _majmin="$2" | |
594 | _lv="/dev/block/$_majmin" | |
595 | _dm=/sys/dev/block/$_majmin/dm | |
596 | [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1 | |
597 | _vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") ) | |
598 | # strip space | |
599 | _vg="${_vg//[[:space:]]/}" | |
600 | if [[ $_vg ]]; then | |
601 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null) | |
602 | do | |
603 | check_block_and_slaves $1 $(get_maj_min $_pv) && return 0 | |
604 | done | |
605 | fi | |
533d7dc4 HH |
606 | return 1 |
607 | } | |
608 | ||
c7c8c498 | 609 | check_vol_slaves_all() { |
9ed6eb74 HH |
610 | local _lv _vg _pv _majmin |
611 | _majmin="$2" | |
612 | _lv="/dev/block/$_majmin" | |
613 | _dm="/sys/dev/block/$_majmin/dm" | |
614 | [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1 | |
615 | _vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") ) | |
616 | # strip space | |
617 | _vg="${_vg//[[:space:]]/}" | |
618 | if [[ $_vg ]]; then | |
da36b76a | 619 | # when filter/global_filter is set, lvm may be failed |
620 | lvm lvs --noheadings -o vg_name $_vg 2>/dev/null 1>/dev/null | |
621 | if [ $? -ne 0 ]; then | |
622 | return 1 | |
623 | fi | |
624 | ||
9ed6eb74 HH |
625 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null) |
626 | do | |
627 | check_block_and_slaves_all $1 $(get_maj_min $_pv) | |
628 | done | |
629 | return 0 | |
630 | fi | |
c7c8c498 HH |
631 | return 1 |
632 | } | |
633 | ||
634 | ||
635 | ||
8aa99268 HH |
636 | # fs_get_option <filesystem options> <search for option> |
637 | # search for a specific option in a bunch of filesystem options | |
638 | # and return the value | |
639 | fs_get_option() { | |
640 | local _fsopts=$1 | |
641 | local _option=$2 | |
642 | local OLDIFS="$IFS" | |
643 | IFS=, | |
644 | set -- $_fsopts | |
645 | IFS="$OLDIFS" | |
646 | while [ $# -gt 0 ]; do | |
647 | case $1 in | |
648 | $_option=*) | |
649 | echo ${1#${_option}=} | |
650 | break | |
651 | esac | |
652 | shift | |
653 | done | |
654 | } | |
655 | ||
8e3f6537 HH |
656 | check_kernel_config() |
657 | { | |
658 | local _config_opt="$1" | |
659 | local _config_file | |
a0120420 | 660 | [[ -f $dracutsysrootdir/boot/config-$kernel ]] \ |
8e3f6537 | 661 | && _config_file="/boot/config-$kernel" |
a0120420 | 662 | [[ -f $dracutsysrootdir/lib/modules/$kernel/config ]] \ |
8e3f6537 HH |
663 | && _config_file="/lib/modules/$kernel/config" |
664 | ||
665 | # no kernel config file, so return true | |
666 | [[ $_config_file ]] || return 0 | |
667 | ||
668 | grep -q -F "${_config_opt}=" "$_config_file" && return 0 | |
669 | return 1 | |
670 | } | |
671 | ||
672 | ||
5f2c30d9 KRW |
673 | # get_cpu_vendor |
674 | # Only two values are returned: AMD or Intel | |
675 | get_cpu_vendor () | |
676 | { | |
677 | if grep -qE AMD /proc/cpuinfo; then | |
678 | printf "AMD" | |
679 | fi | |
680 | if grep -qE Intel /proc/cpuinfo; then | |
681 | printf "Intel" | |
682 | fi | |
683 | } | |
684 | ||
685 | # get_host_ucode | |
686 | # Get the hosts' ucode file based on the /proc/cpuinfo | |
687 | get_ucode_file () | |
688 | { | |
689 | local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
690 | local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //` | |
691 | local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
692 | ||
693 | if [[ "$(get_cpu_vendor)" == "AMD" ]]; then | |
19453dc8 DM |
694 | if [[ $family -ge 21 ]]; then |
695 | printf "microcode_amd_fam%xh.bin" $family | |
5f2c30d9 KRW |
696 | else |
697 | printf "microcode_amd.bin" | |
698 | fi | |
699 | fi | |
700 | if [[ "$(get_cpu_vendor)" == "Intel" ]]; then | |
701 | # The /proc/cpuinfo are in decimal. | |
702 | printf "%02x-%02x-%02x" ${family} ${model} ${stepping} | |
703 | fi | |
704 | } | |
96c6f6f3 MC |
705 | |
706 | # Not every device in /dev/mapper should be examined. | |
707 | # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. | |
708 | lvm_internal_dev() { | |
709 | local dev_dm_dir=/sys/dev/block/$1/dm | |
710 | [[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device | |
711 | local DM_VG_NAME DM_LV_NAME DM_LV_LAYER | |
712 | eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null) | |
713 | [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! | |
714 | [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] | |
715 | } | |
716 | ||
1cadc26f HH |
717 | btrfs_devs() { |
718 | local _mp="$1" | |
719 | btrfs device usage "$_mp" \ | |
720 | | while read _dev _rest; do | |
721 | str_starts "$_dev" "/" || continue | |
722 | _dev=${_dev%,} | |
723 | printf -- "%s\n" "$_dev" | |
724 | done | |
725 | } |