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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() { | |
b6054b5d | 226 | local i _tmp _dev _pol |
69f7ed96 HH |
227 | |
228 | _dev=$(get_maj_min "$1") | |
229 | [ -z "$_dev" ] && return | |
230 | ||
b6054b5d MW |
231 | if [[ -n "$persistent_policy" ]]; then |
232 | _pol="/dev/disk/${persistent_policy}/*" | |
233 | else | |
234 | _pol= | |
235 | fi | |
236 | ||
324ea606 | 237 | for i in \ |
b6054b5d | 238 | $_pol \ |
324ea606 | 239 | /dev/mapper/* \ |
324ea606 HH |
240 | /dev/disk/by-uuid/* \ |
241 | /dev/disk/by-label/* \ | |
242 | /dev/disk/by-partuuid/* \ | |
243 | /dev/disk/by-partlabel/* \ | |
244 | /dev/disk/by-id/* \ | |
245 | /dev/disk/by-path/* \ | |
246 | ; do | |
2b9d8f65 | 247 | [[ -e "$i" ]] || continue |
1743473b | 248 | [[ $i == /dev/mapper/control ]] && continue |
69f7ed96 HH |
249 | [[ $i == /dev/mapper/mpath* ]] && continue |
250 | _tmp=$(get_maj_min "$i") | |
251 | if [ "$_tmp" = "$_dev" ]; then | |
252 | printf -- "%s" "$i" | |
253 | return | |
254 | fi | |
255 | done | |
9efb74a3 | 256 | printf -- "%s" "$1" |
69f7ed96 HH |
257 | } |
258 | ||
c82a1133 HH |
259 | expand_persistent_dev() { |
260 | local _dev=$1 | |
261 | ||
262 | case "$_dev" in | |
263 | LABEL=*) | |
264 | _dev="/dev/disk/by-label/${_dev#LABEL=}" | |
265 | ;; | |
266 | UUID=*) | |
267 | _dev="${_dev#UUID=}" | |
93b02f50 | 268 | _dev="${_dev,,}" |
c82a1133 HH |
269 | _dev="/dev/disk/by-uuid/${_dev}" |
270 | ;; | |
271 | PARTUUID=*) | |
272 | _dev="${_dev#PARTUUID=}" | |
93b02f50 | 273 | _dev="${_dev,,}" |
c82a1133 HH |
274 | _dev="/dev/disk/by-partuuid/${_dev}" |
275 | ;; | |
276 | PARTLABEL=*) | |
277 | _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}" | |
278 | ;; | |
279 | esac | |
280 | printf "%s" "$_dev" | |
281 | } | |
282 | ||
324ea606 | 283 | shorten_persistent_dev() { |
c82a1133 HH |
284 | local _dev="$1" |
285 | case "$_dev" in | |
324ea606 | 286 | /dev/disk/by-uuid/*) |
c82a1133 | 287 | printf "%s" "UUID=${_dev##*/}";; |
324ea606 | 288 | /dev/disk/by-label/*) |
c82a1133 | 289 | printf "%s" "LABEL=${_dev##*/}";; |
324ea606 | 290 | /dev/disk/by-partuuid/*) |
c82a1133 | 291 | printf "%s" "PARTUUID=${_dev##*/}";; |
324ea606 | 292 | /dev/disk/by-partlabel/*) |
c82a1133 | 293 | printf "%s" "PARTLABEL=${_dev##*/}";; |
324ea606 | 294 | *) |
c82a1133 | 295 | printf "%s" "$_dev";; |
324ea606 HH |
296 | esac |
297 | } | |
298 | ||
7e2bca48 HH |
299 | # find_block_device <mountpoint> |
300 | # Prints the major and minor number of the block device | |
301 | # for a given mountpoint. | |
302 | # Unless $use_fstab is set to "yes" the functions | |
303 | # uses /proc/self/mountinfo as the primary source of the | |
304 | # information and only falls back to /etc/fstab, if the mountpoint | |
305 | # is not found there. | |
306 | # Example: | |
307 | # $ find_block_device /usr | |
308 | # 8:4 | |
f76ef3aa | 309 | find_block_device() { |
9918afd2 | 310 | local _dev _majmin _find_mpt |
c8d685c9 | 311 | _find_mpt="$1" |
0b706743 | 312 | if [[ $use_fstab != yes ]]; then |
9d36d4fb | 313 | [[ -d $_find_mpt/. ]] |
dba20559 | 314 | findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ |
6d58fa27 | 315 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
316 | if [[ -b $_dev ]]; then |
317 | if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then | |
318 | _majmin=$(get_maj_min $_dev) | |
319 | fi | |
320 | if [[ $_majmin ]]; then | |
466a5998 | 321 | printf "%s\n" "$_majmin" |
dba20559 | 322 | else |
466a5998 | 323 | printf "%s\n" "$_dev" |
dba20559 HH |
324 | fi |
325 | return 0 | |
326 | fi | |
327 | if [[ $_dev = *:* ]]; then | |
466a5998 | 328 | printf "%s\n" "$_dev" |
dba20559 HH |
329 | return 0 |
330 | fi | |
331 | done; return 1; } && return 0 | |
332 | fi | |
333 | # fall back to /etc/fstab | |
334 | ||
335 | findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \ | |
6d58fa27 | 336 | while read _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
337 | if ! [[ $_dev ]]; then |
338 | _dev="$_majmin" | |
339 | unset _majmin | |
340 | fi | |
9d36d4fb | 341 | if [[ -b $_dev ]]; then |
dba20559 | 342 | [[ $_majmin ]] || _majmin=$(get_maj_min $_dev) |
9d36d4fb | 343 | if [[ $_majmin ]]; then |
466a5998 | 344 | printf "%s\n" "$_majmin" |
9d36d4fb | 345 | else |
466a5998 | 346 | printf "%s\n" "$_dev" |
9d36d4fb HH |
347 | fi |
348 | return 0 | |
349 | fi | |
350 | if [[ $_dev = *:* ]]; then | |
466a5998 | 351 | printf "%s\n" "$_dev" |
9d36d4fb | 352 | return 0 |
cc02093d | 353 | fi |
dba20559 | 354 | done; return 1; } && return 0 |
0b706743 AŻ |
355 | |
356 | return 1 | |
17829e94 VL |
357 | } |
358 | ||
9d36d4fb HH |
359 | # find_mp_fstype <mountpoint> |
360 | # Echo the filesystem type for a given mountpoint. | |
7e2bca48 HH |
361 | # /proc/self/mountinfo is taken as the primary source of information |
362 | # and /etc/fstab is used as a fallback. | |
363 | # No newline is appended! | |
364 | # Example: | |
9d36d4fb | 365 | # $ find_mp_fstype /;echo |
7e2bca48 | 366 | # ext4 |
9d36d4fb HH |
367 | find_mp_fstype() { |
368 | local _fs | |
7ae5d9d1 | 369 | |
9d36d4fb | 370 | if [[ $use_fstab != yes ]]; then |
dba20559 | 371 | findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \ |
6d58fa27 | 372 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
373 | [[ $_fs ]] || continue |
374 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 375 | printf "%s" "$_fs" |
dba20559 HH |
376 | return 0 |
377 | done; return 1; } && return 0 | |
378 | fi | |
379 | ||
380 | findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \ | |
6d58fa27 | 381 | while read _fs || [ -n "$_fs" ]; do |
9d36d4fb HH |
382 | [[ $_fs ]] || continue |
383 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 384 | printf "%s" "$_fs" |
9d36d4fb | 385 | return 0 |
dba20559 | 386 | done; return 1; } && return 0 |
7ae5d9d1 HH |
387 | |
388 | return 1 | |
389 | } | |
390 | ||
9d36d4fb HH |
391 | # find_dev_fstype <device> |
392 | # Echo the filesystem type for a given device. | |
81672479 HH |
393 | # /proc/self/mountinfo is taken as the primary source of information |
394 | # and /etc/fstab is used as a fallback. | |
395 | # No newline is appended! | |
396 | # Example: | |
9d36d4fb | 397 | # $ find_dev_fstype /dev/sda2;echo |
81672479 | 398 | # ext4 |
9d36d4fb | 399 | find_dev_fstype() { |
5e601454 | 400 | local _find_dev _fs |
9d36d4fb | 401 | _find_dev="$1" |
a4f7b504 HH |
402 | if ! [[ "$_find_dev" = /dev* ]]; then |
403 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
404 | fi | |
5e601454 HH |
405 | |
406 | if [[ $use_fstab != yes ]]; then | |
dba20559 | 407 | findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ |
6d58fa27 | 408 | while read _fs || [ -n "$_fs" ]; do |
dba20559 HH |
409 | [[ $_fs ]] || continue |
410 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 411 | printf "%s" "$_fs" |
dba20559 HH |
412 | return 0 |
413 | done; return 1; } && return 0 | |
414 | fi | |
415 | ||
416 | findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \ | |
6d58fa27 | 417 | while read _fs || [ -n "$_fs" ]; do |
5e601454 HH |
418 | [[ $_fs ]] || continue |
419 | [[ $_fs = "autofs" ]] && continue | |
466a5998 | 420 | printf "%s" "$_fs" |
5e601454 | 421 | return 0 |
dba20559 | 422 | done; return 1; } && return 0 |
5e601454 HH |
423 | |
424 | return 1 | |
97af51db | 425 | } |
5e601454 | 426 | |
bbc9bfe1 HH |
427 | # find_mp_fsopts <mountpoint> |
428 | # Echo the filesystem options for a given mountpoint. | |
429 | # /proc/self/mountinfo is taken as the primary source of information | |
430 | # and /etc/fstab is used as a fallback. | |
431 | # No newline is appended! | |
432 | # Example: | |
433 | # $ find_mp_fsopts /;echo | |
434 | # rw,relatime,discard,data=ordered | |
435 | find_mp_fsopts() { | |
436 | if [[ $use_fstab != yes ]]; then | |
437 | findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0 | |
438 | fi | |
439 | ||
440 | findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1" | |
441 | } | |
442 | ||
97af51db HH |
443 | # find_dev_fsopts <device> |
444 | # Echo the filesystem options for a given device. | |
445 | # /proc/self/mountinfo is taken as the primary source of information | |
446 | # and /etc/fstab is used as a fallback. | |
447 | # Example: | |
448 | # $ find_dev_fsopts /dev/sda2 | |
449 | # rw,relatime,discard,data=ordered | |
450 | find_dev_fsopts() { | |
451 | local _find_dev _opts | |
452 | _find_dev="$1" | |
453 | if ! [[ "$_find_dev" = /dev* ]]; then | |
454 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" | |
455 | fi | |
456 | ||
457 | if [[ $use_fstab != yes ]]; then | |
458 | findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0 | |
459 | fi | |
460 | ||
461 | findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev" | |
81672479 HH |
462 | } |
463 | ||
97af51db | 464 | |
7ae5d9d1 | 465 | # finds the major:minor of the block device backing the root filesystem. |
f76ef3aa VL |
466 | find_root_block_device() { find_block_device /; } |
467 | ||
7e2bca48 | 468 | # for_each_host_dev_fs <func> |
d351541e | 469 | # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
7e2bca48 | 470 | # in ${host_fs_types[@]} |
480d772f HH |
471 | for_each_host_dev_fs() |
472 | { | |
473 | local _func="$1" | |
d0096de7 | 474 | local _dev |
2efa546f | 475 | local _ret=1 |
fd191a7b | 476 | |
e6199960 PL |
477 | [[ "${#host_fs_types[@]}" ]] || return 2 |
478 | ||
fd191a7b | 479 | |
d351541e HH |
480 | for _dev in "${!host_fs_types[@]}"; do |
481 | $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 | |
480d772f | 482 | done |
2efa546f | 483 | return $_ret |
480d772f HH |
484 | } |
485 | ||
fd191a7b HH |
486 | host_fs_all() |
487 | { | |
466a5998 | 488 | printf "%s\n" "${host_fs_types[@]}" |
fd191a7b HH |
489 | } |
490 | ||
17829e94 VL |
491 | # Walk all the slave relationships for a given block device. |
492 | # Stop when our helper function returns success | |
493 | # $1 = function to call on every found block device | |
494 | # $2 = block device in major:minor format | |
0b706743 | 495 | check_block_and_slaves() { |
29b10e65 | 496 | local _x |
17829e94 | 497 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
96c6f6f3 | 498 | if ! lvm_internal_dev $2; then "$1" $2 && return; fi |
533d7dc4 | 499 | check_vol_slaves "$@" && return 0 |
e64dafd1 | 500 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
dba20559 | 501 | check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0 |
a3afcf2a | 502 | fi |
17829e94 | 503 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 |
e64dafd1 HH |
504 | for _x in /sys/dev/block/$2/slaves/*; do |
505 | [[ -f $_x/dev ]] || continue | |
506 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
507 | check_block_and_slaves $1 $(<"$_x/dev") && return 0 | |
17829e94 VL |
508 | done |
509 | return 1 | |
510 | } | |
511 | ||
83e0dc7a DY |
512 | check_block_and_slaves_all() { |
513 | local _x _ret=1 | |
514 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. | |
96c6f6f3 | 515 | if ! lvm_internal_dev $2 && "$1" $2; then |
dba20559 | 516 | _ret=0 |
83e0dc7a | 517 | fi |
c7c8c498 | 518 | check_vol_slaves_all "$@" && return 0 |
e64dafd1 | 519 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
dba20559 | 520 | check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0 |
83e0dc7a DY |
521 | fi |
522 | [[ -d /sys/dev/block/$2/slaves ]] || return 1 | |
e64dafd1 HH |
523 | for _x in /sys/dev/block/$2/slaves/*; do |
524 | [[ -f $_x/dev ]] || continue | |
525 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
526 | check_block_and_slaves_all $1 $(<"$_x/dev") && _ret=0 | |
83e0dc7a DY |
527 | done |
528 | return $_ret | |
529 | } | |
530 | # for_each_host_dev_and_slaves <func> | |
531 | # Execute "<func> <dev>" for every "<dev>" found | |
532 | # in ${host_devs[@]} and their slaves | |
533 | for_each_host_dev_and_slaves_all() | |
534 | { | |
535 | local _func="$1" | |
536 | local _dev | |
537 | local _ret=1 | |
fd191a7b | 538 | |
e6199960 | 539 | [[ "${host_devs[@]}" ]] || return 2 |
fd191a7b | 540 | |
3721635b | 541 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 542 | [[ -b "$_dev" ]] || continue |
83e0dc7a | 543 | if check_block_and_slaves_all $_func $(get_maj_min $_dev); then |
dba20559 | 544 | _ret=0 |
83e0dc7a DY |
545 | fi |
546 | done | |
547 | return $_ret | |
548 | } | |
549 | ||
550 | for_each_host_dev_and_slaves() | |
551 | { | |
552 | local _func="$1" | |
553 | local _dev | |
fd191a7b | 554 | |
e6199960 | 555 | [[ "${host_devs[@]}" ]] || return 2 |
fd191a7b | 556 | |
3721635b | 557 | for _dev in "${host_devs[@]}"; do |
83e0dc7a | 558 | [[ -b "$_dev" ]] || continue |
a999414e | 559 | check_block_and_slaves $_func $(get_maj_min $_dev) && return 0 |
83e0dc7a DY |
560 | done |
561 | return 1 | |
562 | } | |
563 | ||
533d7dc4 HH |
564 | # ugly workaround for the lvm design |
565 | # There is no volume group device, | |
566 | # so, there are no slave devices for volume groups. | |
567 | # Logical volumes only have the slave devices they really live on, | |
568 | # but you cannot create the logical volume without the volume group. | |
95bde758 | 569 | # And the volume group might be bigger than the devices the LV needs. |
533d7dc4 | 570 | check_vol_slaves() { |
9ed6eb74 HH |
571 | local _lv _vg _pv _dm _majmin |
572 | _majmin="$2" | |
573 | _lv="/dev/block/$_majmin" | |
574 | _dm=/sys/dev/block/$_majmin/dm | |
575 | [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1 | |
576 | _vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") ) | |
577 | # strip space | |
578 | _vg="${_vg//[[:space:]]/}" | |
579 | if [[ $_vg ]]; then | |
580 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null) | |
581 | do | |
582 | check_block_and_slaves $1 $(get_maj_min $_pv) && return 0 | |
583 | done | |
584 | fi | |
533d7dc4 HH |
585 | return 1 |
586 | } | |
587 | ||
c7c8c498 | 588 | check_vol_slaves_all() { |
9ed6eb74 HH |
589 | local _lv _vg _pv _majmin |
590 | _majmin="$2" | |
591 | _lv="/dev/block/$_majmin" | |
592 | _dm="/sys/dev/block/$_majmin/dm" | |
593 | [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1 | |
594 | _vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") ) | |
595 | # strip space | |
596 | _vg="${_vg//[[:space:]]/}" | |
597 | if [[ $_vg ]]; then | |
598 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null) | |
599 | do | |
600 | check_block_and_slaves_all $1 $(get_maj_min $_pv) | |
601 | done | |
602 | return 0 | |
603 | fi | |
c7c8c498 HH |
604 | return 1 |
605 | } | |
606 | ||
607 | ||
608 | ||
8aa99268 HH |
609 | # fs_get_option <filesystem options> <search for option> |
610 | # search for a specific option in a bunch of filesystem options | |
611 | # and return the value | |
612 | fs_get_option() { | |
613 | local _fsopts=$1 | |
614 | local _option=$2 | |
615 | local OLDIFS="$IFS" | |
616 | IFS=, | |
617 | set -- $_fsopts | |
618 | IFS="$OLDIFS" | |
619 | while [ $# -gt 0 ]; do | |
620 | case $1 in | |
621 | $_option=*) | |
622 | echo ${1#${_option}=} | |
623 | break | |
624 | esac | |
625 | shift | |
626 | done | |
627 | } | |
628 | ||
8e3f6537 HH |
629 | check_kernel_config() |
630 | { | |
631 | local _config_opt="$1" | |
632 | local _config_file | |
633 | [[ -f /boot/config-$kernel ]] \ | |
634 | && _config_file="/boot/config-$kernel" | |
635 | [[ -f /lib/modules/$kernel/config ]] \ | |
636 | && _config_file="/lib/modules/$kernel/config" | |
637 | ||
638 | # no kernel config file, so return true | |
639 | [[ $_config_file ]] || return 0 | |
640 | ||
641 | grep -q -F "${_config_opt}=" "$_config_file" && return 0 | |
642 | return 1 | |
643 | } | |
644 | ||
645 | ||
5f2c30d9 KRW |
646 | # get_cpu_vendor |
647 | # Only two values are returned: AMD or Intel | |
648 | get_cpu_vendor () | |
649 | { | |
650 | if grep -qE AMD /proc/cpuinfo; then | |
651 | printf "AMD" | |
652 | fi | |
653 | if grep -qE Intel /proc/cpuinfo; then | |
654 | printf "Intel" | |
655 | fi | |
656 | } | |
657 | ||
658 | # get_host_ucode | |
659 | # Get the hosts' ucode file based on the /proc/cpuinfo | |
660 | get_ucode_file () | |
661 | { | |
662 | local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
663 | local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //` | |
664 | local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //` | |
665 | ||
666 | if [[ "$(get_cpu_vendor)" == "AMD" ]]; then | |
19453dc8 DM |
667 | if [[ $family -ge 21 ]]; then |
668 | printf "microcode_amd_fam%xh.bin" $family | |
5f2c30d9 KRW |
669 | else |
670 | printf "microcode_amd.bin" | |
671 | fi | |
672 | fi | |
673 | if [[ "$(get_cpu_vendor)" == "Intel" ]]; then | |
674 | # The /proc/cpuinfo are in decimal. | |
675 | printf "%02x-%02x-%02x" ${family} ${model} ${stepping} | |
676 | fi | |
677 | } | |
96c6f6f3 | 678 | |
70472946 KS |
679 | # Get currently loaded modules |
680 | # sorted, and delimited by newline | |
681 | get_loaded_kernel_modules () | |
682 | { | |
683 | local modules=( ) | |
684 | while read _module _size _used _used_by; do | |
685 | modules+=( "$_module" ) | |
a762dedb | 686 | done <<< "$(lsmod | sed -n '1!p')" |
70472946 KS |
687 | printf '%s\n' "${modules[@]}" | sort |
688 | } | |
689 | ||
96c6f6f3 MC |
690 | # Not every device in /dev/mapper should be examined. |
691 | # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. | |
692 | lvm_internal_dev() { | |
693 | local dev_dm_dir=/sys/dev/block/$1/dm | |
694 | [[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device | |
695 | local DM_VG_NAME DM_LV_NAME DM_LV_LAYER | |
696 | eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null) | |
697 | [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! | |
698 | [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] | |
699 | } | |
700 | ||
1cadc26f HH |
701 | btrfs_devs() { |
702 | local _mp="$1" | |
703 | btrfs device usage "$_mp" \ | |
704 | | while read _dev _rest; do | |
705 | str_starts "$_dev" "/" || continue | |
706 | _dev=${_dev%,} | |
707 | printf -- "%s\n" "$_dev" | |
708 | done | |
709 | } |