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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() { | |
43 | if [[ -z ${1##/*} ]]; then | |
b093aa2d HH |
44 | if [[ -x $1 ]] || { [[ "$1" == *.so* ]] && ldd "$1" &>/dev/null; }; then |
45 | printf "%s\n" "$1" | |
f4031e8a HH |
46 | return 0 |
47 | fi | |
48 | fi | |
49 | ||
b093aa2d | 50 | type -P "${1##*/}" |
f4031e8a HH |
51 | } |
52 | ||
4fe1bdd4 HH |
53 | ldconfig_paths() |
54 | { | |
c59779cf | 55 | ldconfig -pN 2>/dev/null | grep -E -v '/(lib|lib64|usr/lib|usr/lib64)/[^/]*$' | sed -n 's,.* => \(.*\)/.*,\1,p' | sort | uniq |
4fe1bdd4 HH |
56 | } |
57 | ||
f06c2b58 HH |
58 | # Version comparision function. Assumes Linux style version scheme. |
59 | # $1 = version a | |
60 | # $2 = comparision op (gt, ge, eq, le, lt, ne) | |
61 | # $3 = version b | |
62 | vercmp() { | |
63 | local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res | |
64 | ||
65 | for ((_i=0; ; _i++)) | |
66 | do | |
67 | if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0 | |
68 | elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1 | |
69 | elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2 | |
70 | else continue | |
71 | fi | |
72 | break | |
73 | done | |
74 | ||
75 | case $_op in | |
76 | gt) ((_res == 1));; | |
77 | ge) ((_res != 2));; | |
78 | eq) ((_res == 0));; | |
79 | le) ((_res != 1));; | |
80 | lt) ((_res == 2));; | |
81 | ne) ((_res != 0));; | |
82 | esac | |
83 | } | |
84 | ||
87122afc AŻ |
85 | # Create all subdirectories for given path without creating the last element. |
86 | # $1 = path | |
b093aa2d HH |
87 | mksubdirs() { |
88 | [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}" | |
89 | } | |
87122afc | 90 | |
87122afc AŻ |
91 | # Function prints global variables in format name=value line by line. |
92 | # $@ = list of global variables' name | |
93 | print_vars() { | |
29b10e65 | 94 | local _var _value |
87122afc | 95 | |
b093aa2d | 96 | for _var in "$@" |
87122afc | 97 | do |
7a94a432 | 98 | eval printf -v _value "%s" \""\$$_var"\" |
b093aa2d | 99 | [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value" |
87122afc AŻ |
100 | done |
101 | } | |
102 | ||
7e2bca48 HH |
103 | # normalize_path <path> |
104 | # Prints the normalized path, where it removes any duplicated | |
105 | # and trailing slashes. | |
106 | # Example: | |
107 | # $ normalize_path ///test/test// | |
108 | # /test/test | |
626d9eba | 109 | normalize_path() { |
c44e3cb4 MS |
110 | shopt -q -s extglob |
111 | set -- "${1//+(\/)//}" | |
112 | shopt -q -u extglob | |
466a5998 | 113 | printf "%s\n" "${1%/}" |
626d9eba | 114 | } |
d4bb4316 | 115 | |
7e2bca48 HH |
116 | # convert_abs_rel <from> <to> |
117 | # Prints the relative path, when creating a symlink to <to> from <from>. | |
118 | # Example: | |
119 | # $ convert_abs_rel /usr/bin/test /bin/test-2 | |
120 | # ../../bin/test-2 | |
121 | # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test | |
d4bb4316 | 122 | convert_abs_rel() { |
6d2a7942 | 123 | local __current __absolute __abssize __cursize __newpath |
c44e3cb4 | 124 | local -i __i __level |
d4bb4316 | 125 | |
c44e3cb4 MS |
126 | set -- "$(normalize_path "$1")" "$(normalize_path "$2")" |
127 | ||
c1609dd4 | 128 | # corner case #1 - self looping link |
466a5998 | 129 | [[ "$1" == "$2" ]] && { printf "%s\n" "${1##*/}"; return; } |
c1609dd4 MS |
130 | |
131 | # corner case #2 - own dir link | |
466a5998 | 132 | [[ "${1%/*}" == "$2" ]] && { printf ".\n"; return; } |
c1609dd4 | 133 | |
6d2a7942 HH |
134 | IFS="/" __current=($1) |
135 | IFS="/" __absolute=($2) | |
d4bb4316 HH |
136 | |
137 | __abssize=${#__absolute[@]} | |
138 | __cursize=${#__current[@]} | |
139 | ||
b093aa2d | 140 | while [[ "${__absolute[__level]}" == "${__current[__level]}" ]] |
d4bb4316 HH |
141 | do |
142 | (( __level++ )) | |
143 | if (( __level > __abssize || __level > __cursize )) | |
144 | then | |
145 | break | |
146 | fi | |
147 | done | |
148 | ||
149 | for ((__i = __level; __i < __cursize-1; __i++)) | |
150 | do | |
151 | if ((__i > __level)) | |
152 | then | |
153 | __newpath=$__newpath"/" | |
154 | fi | |
155 | __newpath=$__newpath".." | |
156 | done | |
157 | ||
158 | for ((__i = __level; __i < __abssize; __i++)) | |
159 | do | |
160 | if [[ -n $__newpath ]] | |
161 | then | |
162 | __newpath=$__newpath"/" | |
163 | fi | |
164 | __newpath=$__newpath${__absolute[__i]} | |
165 | done | |
166 | ||
466a5998 | 167 | printf "%s\n" "$__newpath" |
d4bb4316 HH |
168 | } |
169 | ||
a20d24de | 170 | |
7e2bca48 | 171 | # get_fs_env <device> |
97af51db | 172 | # Get and the ID_FS_TYPE variable from udev for a device. |
7e2bca48 | 173 | # Example: |
97af51db | 174 | # $ get_fs_env /dev/sda2 |
7e2bca48 | 175 | # ext4 |
9ede1929 | 176 | get_fs_env() { |
0e979d48 HH |
177 | local evalstr |
178 | local found | |
179 | ||
7c179686 | 180 | [[ $1 ]] || return |
29b10e65 | 181 | unset ID_FS_TYPE |
69f7ed96 | 182 | ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \ |
6d58fa27 | 183 | | while read line || [ -n "$line" ]; do |
69f7ed96 HH |
184 | if [[ "$line" == TYPE\=* ]]; then |
185 | printf "%s" "${line#TYPE=}"; | |
186 | exit 0; | |
187 | fi | |
188 | done) | |
189 | if [[ $ID_FS_TYPE ]]; then | |
190 | printf "%s" "$ID_FS_TYPE" | |
191 | return 0 | |
7c179686 | 192 | fi |
a5cde2dd HH |
193 | return 1 |
194 | } | |
9ede1929 | 195 | |
7e2bca48 HH |
196 | # get_maj_min <device> |
197 | # Prints the major and minor of a device node. | |
198 | # Example: | |
199 | # $ get_maj_min /dev/sda2 | |
200 | # 8:2 | |
480d772f | 201 | get_maj_min() { |
dba20559 HH |
202 | local _maj _min _majmin |
203 | _majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)" | |
204 | printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))" | |
480d772f HH |
205 | } |
206 | ||
281327f7 HH |
207 | |
208 | # get_devpath_block <device> | |
209 | # get the DEVPATH in /sys of a block device | |
210 | get_devpath_block() { | |
8552a327 | 211 | local _majmin _i |
281327f7 HH |
212 | _majmin=$(get_maj_min "$1") |
213 | ||
214 | for _i in /sys/block/*/dev /sys/block/*/*/dev; do | |
215 | [[ -e "$_i" ]] || continue | |
216 | if [[ "$_majmin" == "$(<"$_i")" ]]; then | |
217 | printf "%s" "${_i%/dev}" | |
218 | return 0 | |
219 | fi | |
220 | done | |
221 | return 1 | |
222 | } | |
223 | ||
69f7ed96 HH |
224 | # get a persistent path from a device |
225 | get_persistent_dev() { | |
226 | local i _tmp _dev | |
227 | ||
228 | _dev=$(get_maj_min "$1") | |
229 | [ -z "$_dev" ] && return | |
230 | ||
324ea606 HH |
231 | for i in \ |
232 | /dev/mapper/* \ | |
3411ad66 | 233 | /dev/disk/${persistent_policy:-by-uuid}/* \ |
324ea606 HH |
234 | /dev/disk/by-uuid/* \ |
235 | /dev/disk/by-label/* \ | |
236 | /dev/disk/by-partuuid/* \ | |
237 | /dev/disk/by-partlabel/* \ | |
238 | /dev/disk/by-id/* \ | |
239 | /dev/disk/by-path/* \ | |
240 | ; do | |
2b9d8f65 | 241 | [[ -e "$i" ]] || continue |
1743473b | 242 | [[ $i == /dev/mapper/control ]] && continue |
69f7ed96 HH |
243 | [[ $i == /dev/mapper/mpath* ]] && continue |
244 | _tmp=$(get_maj_min "$i") | |
245 | if [ "$_tmp" = "$_dev" ]; then | |
246 | printf -- "%s" "$i" | |
247 | return | |
248 | fi | |
249 | done | |
9efb74a3 | 250 | printf -- "%s" "$1" |
69f7ed96 HH |
251 | } |
252 | ||
c82a1133 HH |
253 | expand_persistent_dev() { |
254 | local _dev=$1 | |
255 | ||
256 | case "$_dev" in | |
257 | LABEL=*) | |
258 | _dev="/dev/disk/by-label/${_dev#LABEL=}" | |
259 | ;; | |
260 | UUID=*) | |
261 | _dev="${_dev#UUID=}" | |
93b02f50 | 262 | _dev="${_dev,,}" |
c82a1133 HH |
263 | _dev="/dev/disk/by-uuid/${_dev}" |
264 | ;; | |
265 | PARTUUID=*) | |
266 | _dev="${_dev#PARTUUID=}" | |
93b02f50 | 267 | _dev="${_dev,,}" |
c82a1133 HH |
268 | _dev="/dev/disk/by-partuuid/${_dev}" |
269 | ;; | |
270 | PARTLABEL=*) | |
271 | _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}" | |
272 | ;; | |
273 | esac | |
274 | printf "%s" "$_dev" | |
275 | } | |
276 | ||
324ea606 | 277 | shorten_persistent_dev() { |
c82a1133 HH |
278 | local _dev="$1" |
279 | case "$_dev" in | |
324ea606 | 280 | /dev/disk/by-uuid/*) |
c82a1133 | 281 | printf "%s" "UUID=${_dev##*/}";; |
324ea606 | 282 | /dev/disk/by-label/*) |
c82a1133 | 283 | printf "%s" "LABEL=${_dev##*/}";; |
324ea606 | 284 | /dev/disk/by-partuuid/*) |
c82a1133 | 285 | printf "%s" "PARTUUID=${_dev##*/}";; |
324ea606 | 286 | /dev/disk/by-partlabel/*) |
c82a1133 | 287 | printf "%s" "PARTLABEL=${_dev##*/}";; |
324ea606 | 288 | *) |
c82a1133 | 289 | printf "%s" "$_dev";; |
324ea606 HH |
290 | esac |
291 | } | |
292 | ||
7e2bca48 HH |
293 | # find_block_device <mountpoint> |
294 | # Prints the major and minor number of the block device | |
295 | # for a given mountpoint. | |
296 | # Unless $use_fstab is set to "yes" the functions | |
297 | # uses /proc/self/mountinfo as the primary source of the | |
298 | # information and only falls back to /etc/fstab, if the mountpoint | |
299 | # is not found there. | |
300 | # Example: | |
301 | # $ find_block_device /usr | |
302 | # 8:4 | |
f76ef3aa | 303 | find_block_device() { |
9918afd2 | 304 | local _dev _majmin _find_mpt |
c8d685c9 | 305 | _find_mpt="$1" |
0b706743 | 306 | if [[ $use_fstab != yes ]]; then |
9d36d4fb | 307 | [[ -d $_find_mpt/. ]] |
dba20559 | 308 | findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ |
6d58fa27 | 309 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
310 | if [[ -b $_dev ]]; then |
311 | if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then | |
312 | _majmin=$(get_maj_min $_dev) | |
313 | fi | |
314 | if [[ $_majmin ]]; then | |
466a5998 | 315 | printf "%s\n" "$_majmin" |
dba20559 | 316 | else |
466a5998 | 317 | printf "%s\n" "$_dev" |
dba20559 HH |
318 | fi |
319 | return 0 | |
320 | fi | |
321 | if [[ $_dev = *:* ]]; then | |
466a5998 | 322 | printf "%s\n" "$_dev" |
dba20559 HH |
323 | return 0 |
324 | fi | |
325 | done; return 1; } && return 0 | |
326 | fi | |
327 | # fall back to /etc/fstab | |
328 | ||
329 | findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ | |
6d58fa27 | 330 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
331 | if ! [[ $_dev ]]; then |
332 | _dev="$_majmin" | |
333 | unset _majmin | |
334 | fi | |
9d36d4fb | 335 | if [[ -b $_dev ]]; then |
dba20559 | 336 | [[ $_majmin ]] || _majmin=$(get_maj_min $_dev) |
9d36d4fb | 337 | if [[ $_majmin ]]; then |
466a5998 | 338 | printf "%s\n" "$_majmin" |
9d36d4fb | 339 | else |
466a5998 | 340 | printf "%s\n" "$_dev" |
9d36d4fb HH |
341 | fi |
342 | return 0 | |
343 | fi | |
344 | if [[ $_dev = *:* ]]; then | |
466a5998 | 345 | printf "%s\n" "$_dev" |
9d36d4fb | 346 | return 0 |
cc02093d | 347 | fi |
dba20559 | 348 | done; return 1; } && return 0 |
0b706743 AŻ |
349 | |
350 | return 1 | |
17829e94 VL |
351 | } |
352 | ||
9d36d4fb HH |
353 | # find_mp_fstype <mountpoint> |
354 | # Echo the filesystem type for a given mountpoint. | |
7e2bca48 HH |
355 | # /proc/self/mountinfo is taken as the primary source of information |
356 | # and /etc/fstab is used as a fallback. | |
357 | # No newline is appended! | |
358 | # Example: | |
9d36d4fb | 359 | # $ find_mp_fstype /;echo |
7e2bca48 | 360 | # ext4 |
9d36d4fb HH |
361 | find_mp_fstype() { |
362 | local _fs | |
7ae5d9d1 | 363 | |
9d36d4fb | 364 | if [[ $use_fstab != yes ]]; then |
dba20559 | 365 | findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \ |
6d58fa27 | 366 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
367 | [[ $_fs ]] || continue |
368 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 369 | printf "%s" "$_fs" |
dba20559 HH |
370 | return 0 |
371 | done; return 1; } && return 0 | |
372 | fi | |
373 | ||
374 | findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \ | |
6d58fa27 | 375 | while read _fs || [ -n "$_fs" ]; do |
9d36d4fb HH |
376 | [[ $_fs ]] || continue |
377 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 378 | printf "%s" "$_fs" |
9d36d4fb | 379 | return 0 |
dba20559 | 380 | done; return 1; } && return 0 |
7ae5d9d1 HH |
381 | |
382 | return 1 | |
383 | } | |
384 | ||
9d36d4fb HH |
385 | # find_dev_fstype <device> |
386 | # Echo the filesystem type for a given device. | |
81672479 HH |
387 | # /proc/self/mountinfo is taken as the primary source of information |
388 | # and /etc/fstab is used as a fallback. | |
389 | # No newline is appended! | |
390 | # Example: | |
9d36d4fb | 391 | # $ find_dev_fstype /dev/sda2;echo |
81672479 | 392 | # ext4 |
9d36d4fb | 393 | find_dev_fstype() { |
5e601454 | 394 | local _find_dev _fs |
9d36d4fb | 395 | _find_dev="$1" |
a4f7b504 HH |
396 | if ! [[ "$_find_dev" = /dev* ]]; then |
397 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
398 | fi | |
5e601454 HH |
399 | |
400 | if [[ $use_fstab != yes ]]; then | |
dba20559 | 401 | findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ |
6d58fa27 | 402 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
403 | [[ $_fs ]] || continue |
404 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 405 | printf "%s" "$_fs" |
dba20559 HH |
406 | return 0 |
407 | done; return 1; } && return 0 | |
408 | fi | |
409 | ||
410 | findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ | |
6d58fa27 | 411 | while read _fs || [ -n "$_fs" ]; do |
5e601454 HH |
412 | [[ $_fs ]] || continue |
413 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 414 | printf "%s" "$_fs" |
5e601454 | 415 | return 0 |
dba20559 | 416 | done; return 1; } && return 0 |
5e601454 HH |
417 | |
418 | return 1 | |
97af51db | 419 | } |
5e601454 | 420 | |
bbc9bfe1 HH |
421 | # find_mp_fsopts <mountpoint> |
422 | # Echo the filesystem options for a given mountpoint. | |
423 | # /proc/self/mountinfo is taken as the primary source of information | |
424 | # and /etc/fstab is used as a fallback. | |
425 | # No newline is appended! | |
426 | # Example: | |
427 | # $ find_mp_fsopts /;echo | |
428 | # rw,relatime,discard,data=ordered | |
429 | find_mp_fsopts() { | |
430 | if [[ $use_fstab != yes ]]; then | |
431 | findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0 | |
432 | fi | |
433 | ||
434 | findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1" | |
435 | } | |
436 | ||
97af51db HH |
437 | # find_dev_fsopts <device> |
438 | # Echo the filesystem options for a given device. | |
439 | # /proc/self/mountinfo is taken as the primary source of information | |
440 | # and /etc/fstab is used as a fallback. | |
441 | # Example: | |
442 | # $ find_dev_fsopts /dev/sda2 | |
443 | # rw,relatime,discard,data=ordered | |
444 | find_dev_fsopts() { | |
445 | local _find_dev _opts | |
446 | _find_dev="$1" | |
447 | if ! [[ "$_find_dev" = /dev* ]]; then | |
448 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
449 | fi | |
450 | ||
451 | if [[ $use_fstab != yes ]]; then | |
452 | findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0 | |
453 | fi | |
454 | ||
455 | findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev" | |
81672479 HH |
456 | } |
457 | ||
97af51db | 458 | |
7ae5d9d1 | 459 | # finds the major:minor of the block device backing the root filesystem. |
f76ef3aa VL |
460 | find_root_block_device() { find_block_device /; } |
461 | ||
7e2bca48 | 462 | # for_each_host_dev_fs <func> |
d351541e | 463 | # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
7e2bca48 | 464 | # in ${host_fs_types[@]} |
480d772f HH |
465 | for_each_host_dev_fs() |
466 | { | |
467 | local _func="$1" | |
d0096de7 | 468 | local _dev |
2efa546f | 469 | local _ret=1 |
fd191a7b | 470 | |
3721635b | 471 | [[ "${#host_fs_types[@]}" ]] || return 0 |
fd191a7b | 472 | |
d351541e HH |
473 | for _dev in "${!host_fs_types[@]}"; do |
474 | $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 | |
480d772f | 475 | done |
2efa546f | 476 | return $_ret |
480d772f HH |
477 | } |
478 | ||
fd191a7b HH |
479 | host_fs_all() |
480 | { | |
466a5998 | 481 | printf "%s\n" "${host_fs_types[@]}" |
fd191a7b HH |
482 | } |
483 | ||
17829e94 VL |
484 | # Walk all the slave relationships for a given block device. |
485 | # Stop when our helper function returns success | |
486 | # $1 = function to call on every found block device | |
487 | # $2 = block device in major:minor format | |
0b706743 | 488 | check_block_and_slaves() { |
29b10e65 | 489 | local _x |
17829e94 | 490 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
96c6f6f3 | 491 | if ! lvm_internal_dev $2; then "$1" $2 && return; fi |
533d7dc4 | 492 | check_vol_slaves "$@" && return 0 |
3478b314 | 493 | if [[ -f /sys/dev/block/$2/../dev ]]; then |
dba20559 | 494 | check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0 |
a3afcf2a | 495 | fi |
17829e94 | 496 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 |
29b10e65 | 497 | for _x in /sys/dev/block/$2/slaves/*/dev; do |
d82e0d7d | 498 | [[ -f $_x ]] || continue |
dba20559 | 499 | check_block_and_slaves $1 $(<"$_x") && return 0 |
17829e94 VL |
500 | done |
501 | return 1 | |
502 | } | |
503 | ||
83e0dc7a DY |
504 | check_block_and_slaves_all() { |
505 | local _x _ret=1 | |
506 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. | |
96c6f6f3 | 507 | if ! lvm_internal_dev $2 && "$1" $2; then |
dba20559 | 508 | _ret=0 |
83e0dc7a DY |
509 | fi |
510 | check_vol_slaves "$@" && return 0 | |
511 | if [[ -f /sys/dev/block/$2/../dev ]]; then | |
dba20559 | 512 | check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0 |
83e0dc7a DY |
513 | fi |
514 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 | |
515 | for _x in /sys/dev/block/$2/slaves/*/dev; do | |
516 | [[ -f $_x ]] || continue | |
dba20559 | 517 | check_block_and_slaves_all $1 $(<"$_x") && _ret=0 |
83e0dc7a DY |
518 | done |
519 | return $_ret | |
520 | } | |
521 | # for_each_host_dev_and_slaves <func> | |
522 | # Execute "<func> <dev>" for every "<dev>" found | |
523 | # in ${host_devs[@]} and their slaves | |
524 | for_each_host_dev_and_slaves_all() | |
525 | { | |
526 | local _func="$1" | |
527 | local _dev | |
528 | local _ret=1 | |
fd191a7b HH |
529 | |
530 | [[ "${host_devs[@]}" ]] || return 0 | |
531 | ||
3721635b | 532 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 533 | [[ -b "$_dev" ]] || continue |
83e0dc7a | 534 | if check_block_and_slaves_all $_func $(get_maj_min $_dev); then |
dba20559 | 535 | _ret=0 |
83e0dc7a DY |
536 | fi |
537 | done | |
538 | return $_ret | |
539 | } | |
540 | ||
541 | for_each_host_dev_and_slaves() | |
542 | { | |
543 | local _func="$1" | |
544 | local _dev | |
fd191a7b HH |
545 | |
546 | [[ "${host_devs[@]}" ]] || return 0 | |
547 | ||
3721635b | 548 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 549 | [[ -b "$_dev" ]] || continue |
a999414e | 550 | check_block_and_slaves $_func $(get_maj_min $_dev) && return 0 |
83e0dc7a DY |
551 | done |
552 | return 1 | |
553 | } | |
554 | ||
533d7dc4 HH |
555 | # ugly workaround for the lvm design |
556 | # There is no volume group device, | |
557 | # so, there are no slave devices for volume groups. | |
558 | # Logical volumes only have the slave devices they really live on, | |
559 | # but you cannot create the logical volume without the volume group. | |
95bde758 | 560 | # And the volume group might be bigger than the devices the LV needs. |
533d7dc4 | 561 | check_vol_slaves() { |
3244bf59 | 562 | local _lv _vg _pv _dm |
0b706743 | 563 | for i in /dev/mapper/*; do |
1743473b | 564 | [[ $i == /dev/mapper/control ]] && continue |
c4e48eae | 565 | _lv=$(get_maj_min $i) |
3244bf59 HR |
566 | _dm=/sys/dev/block/$_lv/dm |
567 | [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || continue | |
29b10e65 HH |
568 | if [[ $_lv = $2 ]]; then |
569 | _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null) | |
cc02093d | 570 | # strip space |
2fd8588d | 571 | _vg="${_vg//[[:space:]]/}" |
29b10e65 HH |
572 | if [[ $_vg ]]; then |
573 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null) | |
0b706743 | 574 | do |
c4e48eae | 575 | check_block_and_slaves $1 $(get_maj_min $_pv) && return 0 |
cc02093d HH |
576 | done |
577 | fi | |
578 | fi | |
533d7dc4 HH |
579 | done |
580 | return 1 | |
581 | } | |
582 | ||
8aa99268 HH |
583 | # fs_get_option <filesystem options> <search for option> |
584 | # search for a specific option in a bunch of filesystem options | |
585 | # and return the value | |
586 | fs_get_option() { | |
587 | local _fsopts=$1 | |
588 | local _option=$2 | |
589 | local OLDIFS="$IFS" | |
590 | IFS=, | |
591 | set -- $_fsopts | |
592 | IFS="$OLDIFS" | |
593 | while [ $# -gt 0 ]; do | |
594 | case $1 in | |
595 | $_option=*) | |
596 | echo ${1#${_option}=} | |
597 | break | |
598 | esac | |
599 | shift | |
600 | done | |
601 | } | |
602 | ||
8e3f6537 HH |
603 | check_kernel_config() |
604 | { | |
605 | local _config_opt="$1" | |
606 | local _config_file | |
607 | [[ -f /boot/config-$kernel ]] \ | |
608 | && _config_file="/boot/config-$kernel" | |
609 | [[ -f /lib/modules/$kernel/config ]] \ | |
610 | && _config_file="/lib/modules/$kernel/config" | |
611 | ||
612 | # no kernel config file, so return true | |
613 | [[ $_config_file ]] || return 0 | |
614 | ||
615 | grep -q -F "${_config_opt}=" "$_config_file" && return 0 | |
616 | return 1 | |
617 | } | |
618 | ||
619 | ||
5f2c30d9 KRW |
620 | # get_cpu_vendor |
621 | # Only two values are returned: AMD or Intel | |
622 | get_cpu_vendor () | |
623 | { | |
624 | if grep -qE AMD /proc/cpuinfo; then | |
625 | printf "AMD" | |
626 | fi | |
627 | if grep -qE Intel /proc/cpuinfo; then | |
628 | printf "Intel" | |
629 | fi | |
630 | } | |
631 | ||
632 | # get_host_ucode | |
633 | # Get the hosts' ucode file based on the /proc/cpuinfo | |
634 | get_ucode_file () | |
635 | { | |
636 | local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
637 | local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //` | |
638 | local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
639 | ||
640 | if [[ "$(get_cpu_vendor)" == "AMD" ]]; then | |
641 | # If family greater or equal than 0x15 | |
642 | if [[ $family -ge 21 ]]; then | |
643 | printf "microcode_amd_fam15h.bin" | |
644 | else | |
645 | printf "microcode_amd.bin" | |
646 | fi | |
647 | fi | |
648 | if [[ "$(get_cpu_vendor)" == "Intel" ]]; then | |
649 | # The /proc/cpuinfo are in decimal. | |
650 | printf "%02x-%02x-%02x" ${family} ${model} ${stepping} | |
651 | fi | |
652 | } | |
96c6f6f3 MC |
653 | |
654 | # Not every device in /dev/mapper should be examined. | |
655 | # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. | |
656 | lvm_internal_dev() { | |
657 | local dev_dm_dir=/sys/dev/block/$1/dm | |
658 | [[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device | |
659 | local DM_VG_NAME DM_LV_NAME DM_LV_LAYER | |
660 | eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null) | |
661 | [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! | |
662 | [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] | |
663 | } | |
664 | ||
1cadc26f HH |
665 | btrfs_devs() { |
666 | local _mp="$1" | |
667 | btrfs device usage "$_mp" \ | |
668 | | while read _dev _rest; do | |
669 | str_starts "$_dev" "/" || continue | |
670 | _dev=${_dev%,} | |
671 | printf -- "%s\n" "$_dev" | |
672 | done | |
673 | } |