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Commit | Line | Data |
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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 $1 is a function. | |
24 | is_func() { | |
75d758e8 | 25 | [[ "$(type -t "$1")" == "function" ]] |
561eb42f HH |
26 | } |
27 | ||
8d95b8b3 | 28 | # Generic substring function. If $2 is in $1, return 0. |
75d758e8 | 29 | strstr() { [[ $1 == *"$2"* ]]; } |
2c19a5fa | 30 | # Generic glob matching function. If glob pattern $2 matches anywhere in $1, OK |
75d758e8 | 31 | strglobin() { [[ $1 == *$2* ]]; } |
2c19a5fa | 32 | # Generic glob matching function. If glob pattern $2 matches all of $1, OK |
3483509e | 33 | # shellcheck disable=SC2053 |
75d758e8 | 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"}" != "$1" ]; } | |
8d95b8b3 | 39 | |
b4de9ee1 AAF |
40 | trim() { |
41 | local var="$*" | |
42 | var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters | |
43 | var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters | |
44 | printf "%s" "$var" | |
45 | } | |
46 | ||
f4031e8a HH |
47 | # find a binary. If we were not passed the full path directly, |
48 | # search in the usual places to find the binary. | |
49 | find_binary() { | |
a0120420 | 50 | local _delim |
f769154b | 51 | local _path |
a0120420 BZ |
52 | local l |
53 | local p | |
54 | [[ -z ${1##/*} ]] || _delim="/" | |
55 | ||
75d758e8 | 56 | if [[ $1 == *.so* ]]; then |
3483509e | 57 | # shellcheck disable=SC2154 |
9a52c3fd | 58 | for l in $libdirs; do |
f769154b | 59 | _path="${l}${_delim}${1}" |
9a52c3fd | 60 | if { $DRACUT_LDD "${dracutsysrootdir}${_path}" &> /dev/null; }; then |
f769154b | 61 | printf "%s\n" "${_path}" |
a0120420 BZ |
62 | return 0 |
63 | fi | |
64 | done | |
f769154b | 65 | _path="${_delim}${1}" |
9a52c3fd | 66 | if { $DRACUT_LDD "${dracutsysrootdir}${_path}" &> /dev/null; }; then |
f769154b | 67 | printf "%s\n" "${_path}" |
f4031e8a HH |
68 | return 0 |
69 | fi | |
70 | fi | |
75d758e8 | 71 | if [[ $1 == */* ]]; then |
f769154b AT |
72 | _path="${_delim}${1}" |
73 | if [[ -L ${dracutsysrootdir}${_path} ]] || [[ -x ${dracutsysrootdir}${_path} ]]; then | |
74 | printf "%s\n" "${_path}" | |
a0120420 BZ |
75 | return 0 |
76 | fi | |
77 | fi | |
9a52c3fd | 78 | for p in $DRACUT_PATH; do |
f769154b | 79 | _path="${p}${_delim}${1}" |
9a52c3fd | 80 | if [[ -L ${dracutsysrootdir}${_path} ]] || [[ -x ${dracutsysrootdir}${_path} ]]; then |
f769154b | 81 | printf "%s\n" "${_path}" |
a0120420 BZ |
82 | return 0 |
83 | fi | |
84 | done | |
f4031e8a | 85 | |
75d758e8 | 86 | [[ -n $dracutsysrootdir ]] && return 1 |
b093aa2d | 87 | type -P "${1##*/}" |
f4031e8a HH |
88 | } |
89 | ||
9a52c3fd HH |
90 | ldconfig_paths() { |
91 | $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 |
92 | } |
93 | ||
f06c2b58 HH |
94 | # Version comparision function. Assumes Linux style version scheme. |
95 | # $1 = version a | |
96 | # $2 = comparision op (gt, ge, eq, le, lt, ne) | |
97 | # $3 = version b | |
98 | vercmp() { | |
3483509e | 99 | local _n1 |
2b5ddc77 | 100 | read -r -a _n1 <<< "${1//./ }" |
3483509e HH |
101 | local _op=$2 |
102 | local _n2 | |
2b5ddc77 | 103 | read -r -a _n2 <<< "${3//./ }" |
3483509e | 104 | local _i _res |
f06c2b58 | 105 | |
9a52c3fd HH |
106 | for ((_i = 0; ; _i++)); do |
107 | if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then | |
108 | _res=0 | |
109 | elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then | |
110 | _res=1 | |
111 | elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then | |
112 | _res=2 | |
113 | else | |
114 | continue | |
f06c2b58 HH |
115 | fi |
116 | break | |
117 | done | |
118 | ||
119 | case $_op in | |
9a52c3fd HH |
120 | gt) ((_res == 1)) ;; |
121 | ge) ((_res != 2)) ;; | |
122 | eq) ((_res == 0)) ;; | |
123 | le) ((_res != 1)) ;; | |
124 | lt) ((_res == 2)) ;; | |
125 | ne) ((_res != 0)) ;; | |
f06c2b58 HH |
126 | esac |
127 | } | |
128 | ||
87122afc AŻ |
129 | # Create all subdirectories for given path without creating the last element. |
130 | # $1 = path | |
b093aa2d | 131 | mksubdirs() { |
3483509e | 132 | # shellcheck disable=SC2174 |
b093aa2d HH |
133 | [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}" |
134 | } | |
87122afc | 135 | |
87122afc AŻ |
136 | # Function prints global variables in format name=value line by line. |
137 | # $@ = list of global variables' name | |
138 | print_vars() { | |
29b10e65 | 139 | local _var _value |
87122afc | 140 | |
9a52c3fd | 141 | for _var in "$@"; do |
7a94a432 | 142 | eval printf -v _value "%s" \""\$$_var"\" |
b093aa2d | 143 | [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value" |
87122afc AŻ |
144 | done |
145 | } | |
146 | ||
7e2bca48 HH |
147 | # normalize_path <path> |
148 | # Prints the normalized path, where it removes any duplicated | |
149 | # and trailing slashes. | |
150 | # Example: | |
151 | # $ normalize_path ///test/test// | |
152 | # /test/test | |
626d9eba | 153 | normalize_path() { |
2b5ddc77 HH |
154 | # shellcheck disable=SC2064 |
155 | trap "$(shopt -p extglob)" RETURN | |
c44e3cb4 | 156 | shopt -q -s extglob |
2b5ddc77 HH |
157 | local p=${1//+(\/)//} |
158 | printf "%s\n" "${p%/}" | |
626d9eba | 159 | } |
d4bb4316 | 160 | |
7e2bca48 HH |
161 | # convert_abs_rel <from> <to> |
162 | # Prints the relative path, when creating a symlink to <to> from <from>. | |
163 | # Example: | |
164 | # $ convert_abs_rel /usr/bin/test /bin/test-2 | |
165 | # ../../bin/test-2 | |
166 | # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test | |
d4bb4316 | 167 | convert_abs_rel() { |
6d2a7942 | 168 | local __current __absolute __abssize __cursize __newpath |
c44e3cb4 | 169 | local -i __i __level |
d4bb4316 | 170 | |
c44e3cb4 MS |
171 | set -- "$(normalize_path "$1")" "$(normalize_path "$2")" |
172 | ||
c1609dd4 | 173 | # corner case #1 - self looping link |
75d758e8 | 174 | [[ $1 == "$2" ]] && { |
9a52c3fd HH |
175 | printf "%s\n" "${1##*/}" |
176 | return | |
177 | } | |
c1609dd4 MS |
178 | |
179 | # corner case #2 - own dir link | |
75d758e8 | 180 | [[ ${1%/*} == "$2" ]] && { |
9a52c3fd HH |
181 | printf ".\n" |
182 | return | |
183 | } | |
c1609dd4 | 184 | |
2b5ddc77 HH |
185 | IFS=/ read -r -a __current <<< "$1" |
186 | IFS=/ read -r -a __absolute <<< "$2" | |
d4bb4316 HH |
187 | |
188 | __abssize=${#__absolute[@]} | |
189 | __cursize=${#__current[@]} | |
190 | ||
75d758e8 | 191 | while [[ ${__absolute[__level]} == "${__current[__level]}" ]]; do |
9a52c3fd HH |
192 | ((__level++)) |
193 | if ((__level > __abssize || __level > __cursize)); then | |
d4bb4316 HH |
194 | break |
195 | fi | |
196 | done | |
197 | ||
9a52c3fd HH |
198 | for ((__i = __level; __i < __cursize - 1; __i++)); do |
199 | if ((__i > __level)); then | |
d4bb4316 HH |
200 | __newpath=$__newpath"/" |
201 | fi | |
202 | __newpath=$__newpath".." | |
203 | done | |
204 | ||
9a52c3fd HH |
205 | for ((__i = __level; __i < __abssize; __i++)); do |
206 | if [[ -n $__newpath ]]; then | |
d4bb4316 HH |
207 | __newpath=$__newpath"/" |
208 | fi | |
209 | __newpath=$__newpath${__absolute[__i]} | |
210 | done | |
211 | ||
3483509e | 212 | printf -- "%s\n" "$__newpath" |
d4bb4316 HH |
213 | } |
214 | ||
7e2bca48 | 215 | # get_fs_env <device> |
97af51db | 216 | # Get and the ID_FS_TYPE variable from udev for a device. |
7e2bca48 | 217 | # Example: |
97af51db | 218 | # $ get_fs_env /dev/sda2 |
7e2bca48 | 219 | # ext4 |
9ede1929 | 220 | get_fs_env() { |
7c179686 | 221 | [[ $1 ]] || return |
29b10e65 | 222 | unset ID_FS_TYPE |
69f7ed96 | 223 | ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \ |
2b5ddc77 HH |
224 | | while read -r line || [ -n "$line" ]; do |
225 | if [[ $line == "TYPE="* ]]; then | |
9a52c3fd HH |
226 | printf "%s" "${line#TYPE=}" |
227 | exit 0 | |
69f7ed96 | 228 | fi |
9a52c3fd | 229 | done) |
69f7ed96 HH |
230 | if [[ $ID_FS_TYPE ]]; then |
231 | printf "%s" "$ID_FS_TYPE" | |
232 | return 0 | |
7c179686 | 233 | fi |
a5cde2dd HH |
234 | return 1 |
235 | } | |
9ede1929 | 236 | |
7e2bca48 HH |
237 | # get_maj_min <device> |
238 | # Prints the major and minor of a device node. | |
239 | # Example: | |
240 | # $ get_maj_min /dev/sda2 | |
241 | # 8:2 | |
480d772f | 242 | get_maj_min() { |
224175d8 | 243 | local _majmin |
a277a5fc HH |
244 | local _out |
245 | ||
246 | if [[ $get_maj_min_cache_file ]]; then | |
67591e88 | 247 | _out="$(grep -m1 -oE "^$1 \S+$" "$get_maj_min_cache_file" | awk '{print $NF}')" |
a277a5fc HH |
248 | fi |
249 | ||
250 | if ! [[ "$_out" ]]; then | |
c3bb9d18 | 251 | _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)" |
a277a5fc HH |
252 | _out="$(printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))")" |
253 | if [[ $get_maj_min_cache_file ]]; then | |
254 | echo "$1 $_out" >> "$get_maj_min_cache_file" | |
255 | fi | |
c3bb9d18 | 256 | fi |
a277a5fc | 257 | echo -n "$_out" |
480d772f HH |
258 | } |
259 | ||
281327f7 HH |
260 | # get_devpath_block <device> |
261 | # get the DEVPATH in /sys of a block device | |
262 | get_devpath_block() { | |
8552a327 | 263 | local _majmin _i |
281327f7 HH |
264 | _majmin=$(get_maj_min "$1") |
265 | ||
266 | for _i in /sys/block/*/dev /sys/block/*/*/dev; do | |
75d758e8 HH |
267 | [[ -e $_i ]] || continue |
268 | if [[ $_majmin == "$(< "$_i")" ]]; then | |
281327f7 HH |
269 | printf "%s" "${_i%/dev}" |
270 | return 0 | |
271 | fi | |
272 | done | |
273 | return 1 | |
274 | } | |
275 | ||
69f7ed96 HH |
276 | # get a persistent path from a device |
277 | get_persistent_dev() { | |
b6054b5d | 278 | local i _tmp _dev _pol |
69f7ed96 HH |
279 | |
280 | _dev=$(get_maj_min "$1") | |
281 | [ -z "$_dev" ] && return | |
282 | ||
75d758e8 | 283 | if [[ -n $persistent_policy ]]; then |
9a52c3fd | 284 | _pol="/dev/disk/${persistent_policy}/*" |
b6054b5d | 285 | else |
9a52c3fd | 286 | _pol= |
b6054b5d MW |
287 | fi |
288 | ||
324ea606 | 289 | for i in \ |
b6054b5d | 290 | $_pol \ |
324ea606 | 291 | /dev/mapper/* \ |
324ea606 HH |
292 | /dev/disk/by-uuid/* \ |
293 | /dev/disk/by-label/* \ | |
294 | /dev/disk/by-partuuid/* \ | |
295 | /dev/disk/by-partlabel/* \ | |
296 | /dev/disk/by-id/* \ | |
9a52c3fd | 297 | /dev/disk/by-path/*; do |
75d758e8 | 298 | [[ -e $i ]] || continue |
1743473b | 299 | [[ $i == /dev/mapper/control ]] && continue |
69f7ed96 HH |
300 | [[ $i == /dev/mapper/mpath* ]] && continue |
301 | _tmp=$(get_maj_min "$i") | |
302 | if [ "$_tmp" = "$_dev" ]; then | |
303 | printf -- "%s" "$i" | |
304 | return | |
305 | fi | |
306 | done | |
9efb74a3 | 307 | printf -- "%s" "$1" |
69f7ed96 HH |
308 | } |
309 | ||
c82a1133 HH |
310 | expand_persistent_dev() { |
311 | local _dev=$1 | |
312 | ||
313 | case "$_dev" in | |
314 | LABEL=*) | |
315 | _dev="/dev/disk/by-label/${_dev#LABEL=}" | |
316 | ;; | |
317 | UUID=*) | |
318 | _dev="${_dev#UUID=}" | |
93b02f50 | 319 | _dev="${_dev,,}" |
c82a1133 HH |
320 | _dev="/dev/disk/by-uuid/${_dev}" |
321 | ;; | |
322 | PARTUUID=*) | |
323 | _dev="${_dev#PARTUUID=}" | |
93b02f50 | 324 | _dev="${_dev,,}" |
c82a1133 HH |
325 | _dev="/dev/disk/by-partuuid/${_dev}" |
326 | ;; | |
327 | PARTLABEL=*) | |
328 | _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}" | |
329 | ;; | |
330 | esac | |
331 | printf "%s" "$_dev" | |
332 | } | |
333 | ||
324ea606 | 334 | shorten_persistent_dev() { |
c82a1133 HH |
335 | local _dev="$1" |
336 | case "$_dev" in | |
324ea606 | 337 | /dev/disk/by-uuid/*) |
9a52c3fd HH |
338 | printf "%s" "UUID=${_dev##*/}" |
339 | ;; | |
324ea606 | 340 | /dev/disk/by-label/*) |
9a52c3fd HH |
341 | printf "%s" "LABEL=${_dev##*/}" |
342 | ;; | |
324ea606 | 343 | /dev/disk/by-partuuid/*) |
9a52c3fd HH |
344 | printf "%s" "PARTUUID=${_dev##*/}" |
345 | ;; | |
324ea606 | 346 | /dev/disk/by-partlabel/*) |
9a52c3fd HH |
347 | printf "%s" "PARTLABEL=${_dev##*/}" |
348 | ;; | |
324ea606 | 349 | *) |
9a52c3fd HH |
350 | printf "%s" "$_dev" |
351 | ;; | |
324ea606 HH |
352 | esac |
353 | } | |
354 | ||
7e2bca48 HH |
355 | # find_block_device <mountpoint> |
356 | # Prints the major and minor number of the block device | |
357 | # for a given mountpoint. | |
358 | # Unless $use_fstab is set to "yes" the functions | |
359 | # uses /proc/self/mountinfo as the primary source of the | |
360 | # information and only falls back to /etc/fstab, if the mountpoint | |
361 | # is not found there. | |
362 | # Example: | |
363 | # $ find_block_device /usr | |
364 | # 8:4 | |
f76ef3aa | 365 | find_block_device() { |
9918afd2 | 366 | local _dev _majmin _find_mpt |
c8d685c9 | 367 | _find_mpt="$1" |
3483509e | 368 | |
0b706743 | 369 | if [[ $use_fstab != yes ]]; then |
9d36d4fb | 370 | [[ -d $_find_mpt/. ]] |
9a52c3fd | 371 | findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { |
2b5ddc77 | 372 | while read -r _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
373 | if [[ -b $_dev ]]; then |
374 | if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then | |
2b5ddc77 | 375 | _majmin=$(get_maj_min "$_dev") |
dba20559 HH |
376 | fi |
377 | if [[ $_majmin ]]; then | |
466a5998 | 378 | printf "%s\n" "$_majmin" |
dba20559 | 379 | else |
466a5998 | 380 | printf "%s\n" "$_dev" |
dba20559 HH |
381 | fi |
382 | return 0 | |
383 | fi | |
75d758e8 | 384 | if [[ $_dev == *:* ]]; then |
466a5998 | 385 | printf "%s\n" "$_dev" |
dba20559 HH |
386 | return 0 |
387 | fi | |
9a52c3fd HH |
388 | done |
389 | return 1 | |
390 | } && return 0 | |
dba20559 HH |
391 | fi |
392 | # fall back to /etc/fstab | |
e9ed44c8 | 393 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
dba20559 | 394 | |
9a52c3fd | 395 | findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { |
2b5ddc77 | 396 | while read -r _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
397 | if ! [[ $_dev ]]; then |
398 | _dev="$_majmin" | |
399 | unset _majmin | |
400 | fi | |
9d36d4fb | 401 | if [[ -b $_dev ]]; then |
2b5ddc77 | 402 | [[ $_majmin ]] || _majmin=$(get_maj_min "$_dev") |
9d36d4fb | 403 | if [[ $_majmin ]]; then |
466a5998 | 404 | printf "%s\n" "$_majmin" |
9d36d4fb | 405 | else |
466a5998 | 406 | printf "%s\n" "$_dev" |
9d36d4fb HH |
407 | fi |
408 | return 0 | |
409 | fi | |
75d758e8 | 410 | if [[ $_dev == *:* ]]; then |
466a5998 | 411 | printf "%s\n" "$_dev" |
9d36d4fb | 412 | return 0 |
cc02093d | 413 | fi |
9a52c3fd HH |
414 | done |
415 | return 1 | |
416 | } && return 0 | |
0b706743 AŻ |
417 | |
418 | return 1 | |
17829e94 VL |
419 | } |
420 | ||
9d36d4fb HH |
421 | # find_mp_fstype <mountpoint> |
422 | # Echo the filesystem type for a given mountpoint. | |
7e2bca48 HH |
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: | |
9d36d4fb | 427 | # $ find_mp_fstype /;echo |
7e2bca48 | 428 | # ext4 |
9d36d4fb HH |
429 | find_mp_fstype() { |
430 | local _fs | |
7ae5d9d1 | 431 | |
9d36d4fb | 432 | if [[ $use_fstab != yes ]]; then |
9a52c3fd | 433 | findmnt -e -v -n -o 'FSTYPE' --target "$1" | { |
2b5ddc77 | 434 | while read -r _fs || [ -n "$_fs" ]; do |
dba20559 | 435 | [[ $_fs ]] || continue |
75d758e8 | 436 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 437 | printf "%s" "$_fs" |
dba20559 | 438 | return 0 |
9a52c3fd HH |
439 | done |
440 | return 1 | |
441 | } && return 0 | |
dba20559 HH |
442 | fi |
443 | ||
e9ed44c8 TL |
444 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
445 | ||
9a52c3fd | 446 | findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { |
2b5ddc77 | 447 | while read -r _fs || [ -n "$_fs" ]; do |
9d36d4fb | 448 | [[ $_fs ]] || continue |
75d758e8 | 449 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 450 | printf "%s" "$_fs" |
9d36d4fb | 451 | return 0 |
9a52c3fd HH |
452 | done |
453 | return 1 | |
454 | } && return 0 | |
7ae5d9d1 HH |
455 | |
456 | return 1 | |
457 | } | |
458 | ||
9d36d4fb HH |
459 | # find_dev_fstype <device> |
460 | # Echo the filesystem type for a given device. | |
81672479 HH |
461 | # /proc/self/mountinfo is taken as the primary source of information |
462 | # and /etc/fstab is used as a fallback. | |
463 | # No newline is appended! | |
464 | # Example: | |
9d36d4fb | 465 | # $ find_dev_fstype /dev/sda2;echo |
81672479 | 466 | # ext4 |
9d36d4fb | 467 | find_dev_fstype() { |
5e601454 | 468 | local _find_dev _fs |
9d36d4fb | 469 | _find_dev="$1" |
75d758e8 | 470 | if ! [[ $_find_dev == /dev* ]]; then |
a4f7b504 HH |
471 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" |
472 | fi | |
5e601454 HH |
473 | |
474 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 475 | findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { |
2b5ddc77 | 476 | while read -r _fs || [ -n "$_fs" ]; do |
dba20559 | 477 | [[ $_fs ]] || continue |
75d758e8 | 478 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 479 | printf "%s" "$_fs" |
dba20559 | 480 | return 0 |
9a52c3fd HH |
481 | done |
482 | return 1 | |
483 | } && return 0 | |
dba20559 HH |
484 | fi |
485 | ||
e9ed44c8 TL |
486 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
487 | ||
9a52c3fd | 488 | findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { |
2b5ddc77 | 489 | while read -r _fs || [ -n "$_fs" ]; do |
5e601454 | 490 | [[ $_fs ]] || continue |
75d758e8 | 491 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 492 | printf "%s" "$_fs" |
5e601454 | 493 | return 0 |
9a52c3fd HH |
494 | done |
495 | return 1 | |
496 | } && return 0 | |
5e601454 HH |
497 | |
498 | return 1 | |
97af51db | 499 | } |
5e601454 | 500 | |
bbc9bfe1 HH |
501 | # find_mp_fsopts <mountpoint> |
502 | # Echo the filesystem options for a given mountpoint. | |
503 | # /proc/self/mountinfo is taken as the primary source of information | |
504 | # and /etc/fstab is used as a fallback. | |
505 | # No newline is appended! | |
506 | # Example: | |
507 | # $ find_mp_fsopts /;echo | |
508 | # rw,relatime,discard,data=ordered | |
509 | find_mp_fsopts() { | |
510 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 511 | findmnt -e -v -n -o 'OPTIONS' --target "$1" 2> /dev/null && return 0 |
bbc9bfe1 HH |
512 | fi |
513 | ||
e9ed44c8 TL |
514 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
515 | ||
bbc9bfe1 HH |
516 | findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1" |
517 | } | |
518 | ||
97af51db HH |
519 | # find_dev_fsopts <device> |
520 | # Echo the filesystem options for a given device. | |
521 | # /proc/self/mountinfo is taken as the primary source of information | |
522 | # and /etc/fstab is used as a fallback. | |
3483509e HH |
523 | # if `use_fstab == yes`, then only `/etc/fstab` is used. |
524 | # | |
97af51db HH |
525 | # Example: |
526 | # $ find_dev_fsopts /dev/sda2 | |
527 | # rw,relatime,discard,data=ordered | |
528 | find_dev_fsopts() { | |
3483509e | 529 | local _find_dev |
97af51db | 530 | _find_dev="$1" |
75d758e8 | 531 | if ! [[ $_find_dev == /dev* ]]; then |
97af51db HH |
532 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" |
533 | fi | |
534 | ||
535 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 536 | findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2> /dev/null && return 0 |
97af51db HH |
537 | fi |
538 | ||
e9ed44c8 TL |
539 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
540 | ||
97af51db | 541 | findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev" |
81672479 HH |
542 | } |
543 | ||
7ae5d9d1 | 544 | # finds the major:minor of the block device backing the root filesystem. |
f76ef3aa VL |
545 | find_root_block_device() { find_block_device /; } |
546 | ||
7e2bca48 | 547 | # for_each_host_dev_fs <func> |
d351541e | 548 | # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
7e2bca48 | 549 | # in ${host_fs_types[@]} |
9a52c3fd | 550 | for_each_host_dev_fs() { |
480d772f | 551 | local _func="$1" |
d0096de7 | 552 | local _dev |
2efa546f | 553 | local _ret=1 |
fd191a7b | 554 | |
e6199960 PL |
555 | [[ "${#host_fs_types[@]}" ]] || return 2 |
556 | ||
d351541e HH |
557 | for _dev in "${!host_fs_types[@]}"; do |
558 | $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 | |
480d772f | 559 | done |
2efa546f | 560 | return $_ret |
480d772f HH |
561 | } |
562 | ||
9a52c3fd | 563 | host_fs_all() { |
466a5998 | 564 | printf "%s\n" "${host_fs_types[@]}" |
fd191a7b HH |
565 | } |
566 | ||
17829e94 VL |
567 | # Walk all the slave relationships for a given block device. |
568 | # Stop when our helper function returns success | |
569 | # $1 = function to call on every found block device | |
570 | # $2 = block device in major:minor format | |
0b706743 | 571 | check_block_and_slaves() { |
29b10e65 | 572 | local _x |
17829e94 | 573 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
2b5ddc77 | 574 | if ! lvm_internal_dev "$2"; then "$1" "$2" && return; fi |
533d7dc4 | 575 | check_vol_slaves "$@" && return 0 |
e64dafd1 | 576 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
2b5ddc77 | 577 | check_block_and_slaves "$1" "$(< "/sys/dev/block/$2/../dev")" && return 0 |
a3afcf2a | 578 | fi |
2b5ddc77 | 579 | for _x in /sys/dev/block/"$2"/slaves/*; do |
e64dafd1 HH |
580 | [[ -f $_x/dev ]] || continue |
581 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
2b5ddc77 | 582 | check_block_and_slaves "$1" "$(< "$_x/dev")" && return 0 |
17829e94 VL |
583 | done |
584 | return 1 | |
585 | } | |
586 | ||
83e0dc7a DY |
587 | check_block_and_slaves_all() { |
588 | local _x _ret=1 | |
589 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. | |
2b5ddc77 | 590 | if ! lvm_internal_dev "$2" && "$1" "$2"; then |
dba20559 | 591 | _ret=0 |
83e0dc7a | 592 | fi |
c7c8c498 | 593 | check_vol_slaves_all "$@" && return 0 |
e64dafd1 | 594 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
2b5ddc77 | 595 | check_block_and_slaves_all "$1" "$(< "/sys/dev/block/$2/../dev")" && _ret=0 |
83e0dc7a | 596 | fi |
2b5ddc77 | 597 | for _x in /sys/dev/block/"$2"/slaves/*; do |
e64dafd1 HH |
598 | [[ -f $_x/dev ]] || continue |
599 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
2b5ddc77 | 600 | check_block_and_slaves_all "$1" "$(< "$_x/dev")" && _ret=0 |
83e0dc7a DY |
601 | done |
602 | return $_ret | |
603 | } | |
604 | # for_each_host_dev_and_slaves <func> | |
605 | # Execute "<func> <dev>" for every "<dev>" found | |
606 | # in ${host_devs[@]} and their slaves | |
9a52c3fd | 607 | for_each_host_dev_and_slaves_all() { |
83e0dc7a DY |
608 | local _func="$1" |
609 | local _dev | |
610 | local _ret=1 | |
fd191a7b | 611 | |
3483509e | 612 | [[ "${host_devs[*]}" ]] || return 2 |
fd191a7b | 613 | |
3721635b | 614 | for _dev in "${host_devs[@]}"; do |
75d758e8 | 615 | [[ -b $_dev ]] || continue |
2b5ddc77 | 616 | if check_block_and_slaves_all "$_func" "$(get_maj_min "$_dev")"; then |
dba20559 | 617 | _ret=0 |
83e0dc7a DY |
618 | fi |
619 | done | |
620 | return $_ret | |
621 | } | |
622 | ||
9a52c3fd | 623 | for_each_host_dev_and_slaves() { |
83e0dc7a DY |
624 | local _func="$1" |
625 | local _dev | |
fd191a7b | 626 | |
3483509e | 627 | [[ "${host_devs[*]}" ]] || return 2 |
fd191a7b | 628 | |
3721635b | 629 | for _dev in "${host_devs[@]}"; do |
75d758e8 | 630 | [[ -b $_dev ]] || continue |
2b5ddc77 | 631 | check_block_and_slaves "$_func" "$(get_maj_min "$_dev")" && return 0 |
83e0dc7a DY |
632 | done |
633 | return 1 | |
634 | } | |
635 | ||
c86f4d28 PL |
636 | # /sys/dev/block/major:minor is symbol link to real hardware device |
637 | # go downstream $(realpath /sys/dev/block/major:minor) to detect driver | |
638 | get_blockdev_drv_through_sys() { | |
639 | local _block_mods="" | |
640 | local _path | |
641 | ||
642 | _path=$(realpath "$1") | |
643 | while true; do | |
644 | if [[ -L "$_path"/driver/module ]]; then | |
645 | _mod=$(realpath "$_path"/driver/module) | |
646 | _mod=$(basename "$_mod") | |
647 | _block_mods="$_block_mods $_mod" | |
648 | fi | |
649 | _path=$(dirname "$_path") | |
650 | if [[ $_path == '/sys/devices' ]] || [[ $_path == '/' ]]; then | |
651 | break | |
652 | fi | |
653 | done | |
654 | echo "$_block_mods" | |
655 | } | |
656 | ||
533d7dc4 HH |
657 | # ugly workaround for the lvm design |
658 | # There is no volume group device, | |
659 | # so, there are no slave devices for volume groups. | |
660 | # Logical volumes only have the slave devices they really live on, | |
661 | # but you cannot create the logical volume without the volume group. | |
95bde758 | 662 | # And the volume group might be bigger than the devices the LV needs. |
533d7dc4 | 663 | check_vol_slaves() { |
2b5ddc77 | 664 | local _vg _pv _dm _majmin |
9ed6eb74 | 665 | _majmin="$2" |
9ed6eb74 | 666 | _dm=/sys/dev/block/$_majmin/dm |
2b5ddc77 HH |
667 | [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 |
668 | _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") | |
9ed6eb74 HH |
669 | # strip space |
670 | _vg="${_vg//[[:space:]]/}" | |
671 | if [[ $_vg ]]; then | |
9a52c3fd | 672 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2> /dev/null); do |
2b5ddc77 | 673 | check_block_and_slaves "$1" "$(get_maj_min "$_pv")" && return 0 |
9ed6eb74 HH |
674 | done |
675 | fi | |
533d7dc4 HH |
676 | return 1 |
677 | } | |
678 | ||
c7c8c498 | 679 | check_vol_slaves_all() { |
2b5ddc77 | 680 | local _vg _pv _majmin |
9ed6eb74 | 681 | _majmin="$2" |
9ed6eb74 | 682 | _dm="/sys/dev/block/$_majmin/dm" |
2b5ddc77 HH |
683 | [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 |
684 | _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") | |
9ed6eb74 HH |
685 | # strip space |
686 | _vg="${_vg//[[:space:]]/}" | |
687 | if [[ $_vg ]]; then | |
da36b76a | 688 | # when filter/global_filter is set, lvm may be failed |
2b5ddc77 | 689 | if ! lvm lvs --noheadings -o vg_name "$_vg" 2> /dev/null 1> /dev/null; then |
9a52c3fd | 690 | return 1 |
da36b76a | 691 | fi |
692 | ||
9a52c3fd | 693 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2> /dev/null); do |
2b5ddc77 | 694 | check_block_and_slaves_all "$1" "$(get_maj_min "$_pv")" |
9ed6eb74 HH |
695 | done |
696 | return 0 | |
697 | fi | |
c7c8c498 HH |
698 | return 1 |
699 | } | |
700 | ||
8aa99268 HH |
701 | # fs_get_option <filesystem options> <search for option> |
702 | # search for a specific option in a bunch of filesystem options | |
703 | # and return the value | |
704 | fs_get_option() { | |
705 | local _fsopts=$1 | |
706 | local _option=$2 | |
707 | local OLDIFS="$IFS" | |
708 | IFS=, | |
2b5ddc77 | 709 | # shellcheck disable=SC2086 |
8aa99268 HH |
710 | set -- $_fsopts |
711 | IFS="$OLDIFS" | |
712 | while [ $# -gt 0 ]; do | |
713 | case $1 in | |
714 | $_option=*) | |
08b63a25 | 715 | echo "${1#"${_option}"=}" |
8aa99268 | 716 | break |
9a52c3fd | 717 | ;; |
8aa99268 HH |
718 | esac |
719 | shift | |
720 | done | |
721 | } | |
722 | ||
9a52c3fd | 723 | check_kernel_config() { |
8e3f6537 HH |
724 | local _config_opt="$1" |
725 | local _config_file | |
a0120420 | 726 | [[ -f $dracutsysrootdir/boot/config-$kernel ]] \ |
8e3f6537 | 727 | && _config_file="/boot/config-$kernel" |
a0120420 | 728 | [[ -f $dracutsysrootdir/lib/modules/$kernel/config ]] \ |
8e3f6537 HH |
729 | && _config_file="/lib/modules/$kernel/config" |
730 | ||
731 | # no kernel config file, so return true | |
732 | [[ $_config_file ]] || return 0 | |
733 | ||
560f45b1 | 734 | grep -q -F "${_config_opt}=" "$dracutsysrootdir$_config_file" && return 0 |
8e3f6537 HH |
735 | return 1 |
736 | } | |
737 | ||
c050190f KS |
738 | # 0 if the kernel module is either built-in or available |
739 | # 1 if the kernel module is not enabled | |
740 | check_kernel_module() { | |
6c42d378 | 741 | modprobe -d "$dracutsysrootdir" -S "$kernel" --dry-run "$1" &> /dev/null || return 1 |
c050190f | 742 | } |
8e3f6537 | 743 | |
5f2c30d9 KRW |
744 | # get_cpu_vendor |
745 | # Only two values are returned: AMD or Intel | |
9a52c3fd | 746 | get_cpu_vendor() { |
5f2c30d9 KRW |
747 | if grep -qE AMD /proc/cpuinfo; then |
748 | printf "AMD" | |
749 | fi | |
750 | if grep -qE Intel /proc/cpuinfo; then | |
751 | printf "Intel" | |
752 | fi | |
753 | } | |
754 | ||
755 | # get_host_ucode | |
756 | # Get the hosts' ucode file based on the /proc/cpuinfo | |
9a52c3fd | 757 | get_ucode_file() { |
2b5ddc77 HH |
758 | local family |
759 | local model | |
760 | local stepping | |
122657b2 KS |
761 | family=$(grep -E "cpu family" /proc/cpuinfo | head -1 | sed "s/.*:\ //") |
762 | model=$(grep -E "model" /proc/cpuinfo | grep -v name | head -1 | sed "s/.*:\ //") | |
763 | stepping=$(grep -E "stepping" /proc/cpuinfo | head -1 | sed "s/.*:\ //") | |
5f2c30d9 KRW |
764 | |
765 | if [[ "$(get_cpu_vendor)" == "AMD" ]]; then | |
19453dc8 | 766 | if [[ $family -ge 21 ]]; then |
2b5ddc77 | 767 | printf "microcode_amd_fam%xh.bin" "$family" |
5f2c30d9 KRW |
768 | else |
769 | printf "microcode_amd.bin" | |
770 | fi | |
771 | fi | |
772 | if [[ "$(get_cpu_vendor)" == "Intel" ]]; then | |
773 | # The /proc/cpuinfo are in decimal. | |
2b5ddc77 | 774 | printf "%02x-%02x-%02x" "${family}" "${model}" "${stepping}" |
5f2c30d9 KRW |
775 | fi |
776 | } | |
96c6f6f3 MC |
777 | |
778 | # Not every device in /dev/mapper should be examined. | |
779 | # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. | |
780 | lvm_internal_dev() { | |
781 | local dev_dm_dir=/sys/dev/block/$1/dm | |
2b5ddc77 | 782 | [[ ! -f $dev_dm_dir/uuid || $(< "$dev_dm_dir"/uuid) != LVM-* ]] && return 1 # Not an LVM device |
96c6f6f3 | 783 | local DM_VG_NAME DM_LV_NAME DM_LV_LAYER |
2b5ddc77 | 784 | eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$(< "$dev_dm_dir"/name)" 2> /dev/null)" |
96c6f6f3 MC |
785 | [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! |
786 | [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] | |
787 | } | |
788 | ||
1cadc26f HH |
789 | btrfs_devs() { |
790 | local _mp="$1" | |
791 | btrfs device usage "$_mp" \ | |
2b5ddc77 | 792 | | while read -r _dev _; do |
9a52c3fd HH |
793 | str_starts "$_dev" "/" || continue |
794 | _dev=${_dev%,} | |
795 | printf -- "%s\n" "$_dev" | |
1cadc26f HH |
796 | done |
797 | } | |
ceca74cc | 798 | |
9582f027 SJ |
799 | zfs_devs() { |
800 | local _mp="$1" | |
801 | zpool list -H -v -P "${_mp%%/*}" | awk -F$'\t' '$2 ~ /^\// {print $2}' \ | |
802 | | while read -r _dev; do | |
803 | realpath "${_dev}" | |
804 | done | |
805 | } | |
806 | ||
ceca74cc | 807 | iface_for_remote_addr() { |
2b5ddc77 | 808 | # shellcheck disable=SC2046 |
ceca74cc | 809 | set -- $(ip -o route get to "$1") |
d754e1c6 MW |
810 | while [ $# -gt 0 ]; do |
811 | case $1 in | |
812 | dev) | |
813 | echo "$2" | |
814 | return | |
815 | ;; | |
816 | esac | |
817 | shift | |
818 | done | |
ceca74cc MW |
819 | } |
820 | ||
821 | local_addr_for_remote_addr() { | |
2b5ddc77 | 822 | # shellcheck disable=SC2046 |
ceca74cc | 823 | set -- $(ip -o route get to "$1") |
d754e1c6 MW |
824 | while [ $# -gt 0 ]; do |
825 | case $1 in | |
826 | src) | |
827 | echo "$2" | |
828 | return | |
829 | ;; | |
830 | esac | |
831 | shift | |
832 | done | |
ceca74cc MW |
833 | } |
834 | ||
835 | peer_for_addr() { | |
836 | local addr=$1 | |
837 | local qtd | |
838 | ||
839 | # quote periods in IPv4 address | |
840 | qtd=${addr//./\\.} | |
9a52c3fd HH |
841 | ip -o addr show \ |
842 | | sed -n 's%^.* '"$qtd"' peer \([0-9a-f.:]\{1,\}\(/[0-9]*\)\?\).*$%\1%p' | |
ceca74cc MW |
843 | } |
844 | ||
845 | netmask_for_addr() { | |
846 | local addr=$1 | |
847 | local qtd | |
848 | ||
849 | # quote periods in IPv4 address | |
850 | qtd=${addr//./\\.} | |
851 | ip -o addr show | sed -n 's,^.* '"$qtd"'/\([0-9]*\) .*$,\1,p' | |
852 | } | |
853 | ||
854 | gateway_for_iface() { | |
855 | local ifname=$1 addr=$2 | |
856 | ||
857 | case $addr in | |
9a52c3fd HH |
858 | *.*) proto=4 ;; |
859 | *:*) proto=6 ;; | |
860 | *) return ;; | |
ceca74cc | 861 | esac |
9a52c3fd HH |
862 | ip -o -$proto route show \ |
863 | | sed -n "s/^default via \([0-9a-z.:]\{1,\}\) dev $ifname .*\$/\1/p" | |
ceca74cc MW |
864 | } |
865 | ||
866 | # This works only for ifcfg-style network configuration! | |
867 | bootproto_for_iface() { | |
868 | local ifname=$1 | |
869 | local dir | |
870 | ||
871 | # follow ifcfg settings for boot protocol | |
872 | for dir in network-scripts network; do | |
873 | [ -f "/etc/sysconfig/$dir/ifcfg-$ifname" ] && { | |
874 | sed -n "s/BOOTPROTO=[\"']\?\([[:alnum:]]\{1,\}\)[\"']\?.*\$/\1/p" \ | |
875 | "/etc/sysconfig/$dir/ifcfg-$ifname" | |
876 | return | |
877 | } | |
878 | done | |
879 | } | |
880 | ||
881 | is_unbracketed_ipv6_address() { | |
882 | strglob "$1" '*:*' && ! strglob "$1" '\[*:*\]' | |
883 | } | |
884 | ||
885 | # Create an ip= string to set up networking such that the given | |
886 | # remote address can be reached | |
887 | ip_params_for_remote_addr() { | |
888 | local remote_addr=$1 | |
2b5ddc77 | 889 | local ifname local_addr peer netmask gateway ifmac |
ceca74cc MW |
890 | |
891 | [[ $remote_addr ]] || return 1 | |
892 | ifname=$(iface_for_remote_addr "$remote_addr") | |
893 | [[ $ifname ]] || { | |
894 | berror "failed to determine interface to connect to $remote_addr" | |
895 | return 1 | |
896 | } | |
897 | ||
898 | # ifname clause to bind the interface name to a MAC address | |
899 | if [ -d "/sys/class/net/$ifname/bonding" ]; then | |
900 | dinfo "Found bonded interface '${ifname}'. Make sure to provide an appropriate 'bond=' cmdline." | |
9a52c3fd | 901 | elif [ -e "/sys/class/net/$ifname/address" ]; then |
ceca74cc MW |
902 | ifmac=$(cat "/sys/class/net/$ifname/address") |
903 | [[ $ifmac ]] && printf 'ifname=%s:%s ' "${ifname}" "${ifmac}" | |
904 | fi | |
905 | ||
906 | bootproto=$(bootproto_for_iface "$ifname") | |
907 | case $bootproto in | |
9a52c3fd | 908 | dhcp | dhcp6 | auto6) ;; |
ceca74cc | 909 | dhcp4) |
9a52c3fd HH |
910 | bootproto=dhcp |
911 | ;; | |
912 | static* | "") | |
913 | bootproto= | |
914 | ;; | |
ceca74cc MW |
915 | *) |
916 | derror "bootproto \"$bootproto\" is unsupported by dracut, trying static configuration" | |
9a52c3fd HH |
917 | bootproto= |
918 | ;; | |
ceca74cc MW |
919 | esac |
920 | if [[ $bootproto ]]; then | |
921 | printf 'ip=%s:%s ' "${ifname}" "${bootproto}" | |
922 | else | |
923 | local_addr=$(local_addr_for_remote_addr "$remote_addr") | |
924 | [[ $local_addr ]] || { | |
925 | berror "failed to determine local address to connect to $remote_addr" | |
926 | return 1 | |
927 | } | |
928 | peer=$(peer_for_addr "$local_addr") | |
929 | # Set peer or netmask, but not both | |
930 | [[ $peer ]] || netmask=$(netmask_for_addr "$local_addr") | |
931 | gateway=$(gateway_for_iface "$ifname" "$local_addr") | |
932 | # Quote IPv6 addresses with brackets | |
933 | is_unbracketed_ipv6_address "$local_addr" && local_addr="[$local_addr]" | |
934 | is_unbracketed_ipv6_address "$peer" && peer="[$peer]" | |
935 | is_unbracketed_ipv6_address "$gateway" && gateway="[$gateway]" | |
936 | printf 'ip=%s:%s:%s:%s::%s:none ' \ | |
9a52c3fd | 937 | "${local_addr}" "${peer}" "${gateway}" "${netmask}" "${ifname}" |
ceca74cc MW |
938 | fi |
939 | ||
940 | } | |
480aa969 DM |
941 | |
942 | # block_is_nbd <maj:min> | |
943 | # Check whether $1 is an nbd device | |
944 | block_is_nbd() { | |
945 | [[ -b /dev/block/$1 && $1 == 43:* ]] | |
946 | } | |
947 | ||
948 | # block_is_iscsi <maj:min> | |
0afa840e | 949 | # Check whether $1 is an iSCSI device |
480aa969 DM |
950 | block_is_iscsi() { |
951 | local _dir | |
952 | local _dev=$1 | |
953 | [[ -L "/sys/dev/block/$_dev" ]] || return | |
954 | _dir="$(readlink -f "/sys/dev/block/$_dev")" || return | |
955 | until [[ -d "$_dir/sys" || -d "$_dir/iscsi_session" ]]; do | |
956 | _dir="$_dir/.." | |
957 | done | |
958 | [[ -d "$_dir/iscsi_session" ]] | |
959 | } | |
960 | ||
961 | # block_is_fcoe <maj:min> | |
962 | # Check whether $1 is an FCoE device | |
963 | # Will not work for HBAs that hide the ethernet aspect | |
964 | # completely and present a pure FC device | |
965 | block_is_fcoe() { | |
966 | local _dir | |
967 | local _dev=$1 | |
968 | [[ -L "/sys/dev/block/$_dev" ]] || return | |
969 | _dir="$(readlink -f "/sys/dev/block/$_dev")" | |
970 | until [[ -d "$_dir/sys" ]]; do | |
971 | _dir="$_dir/.." | |
972 | if [[ -d "$_dir/subsystem" ]]; then | |
2b5ddc77 | 973 | subsystem=$(basename "$(readlink "$_dir"/subsystem)") |
480aa969 DM |
974 | [[ $subsystem == "fcoe" ]] && return 0 |
975 | fi | |
976 | done | |
977 | return 1 | |
978 | } | |
979 | ||
980 | # block_is_netdevice <maj:min> | |
981 | # Check whether $1 is a net device | |
982 | block_is_netdevice() { | |
983 | block_is_nbd "$1" || block_is_iscsi "$1" || block_is_fcoe "$1" | |
984 | } | |
cbafcd0f | 985 | |
a62e895d TL |
986 | # convert the driver name given by udevadm to the corresponding kernel module name |
987 | get_module_name() { | |
988 | local dev_driver | |
989 | while read -r dev_driver; do | |
990 | case "$dev_driver" in | |
991 | mmcblk) | |
992 | echo "mmc_block" | |
993 | ;; | |
994 | *) | |
995 | echo "$dev_driver" | |
996 | ;; | |
997 | esac | |
998 | done | |
999 | } | |
1000 | ||
cbafcd0f KS |
1001 | # get the corresponding kernel modules of a /sys/class/*/* or/dev/* device |
1002 | get_dev_module() { | |
dc3b976f AAF |
1003 | local dev_attr_walk |
1004 | local dev_drivers | |
87a76dbb | 1005 | local dev_paths |
dc3b976f | 1006 | dev_attr_walk=$(udevadm info -a "$1") |
a62e895d TL |
1007 | dev_drivers=$(echo "$dev_attr_walk" \ |
1008 | | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p' \ | |
1009 | | get_module_name) | |
87a76dbb AT |
1010 | |
1011 | # also return modalias info from sysfs paths parsed by udevadm | |
1012 | dev_paths=$(echo "$dev_attr_walk" | sed -n 's/.*\(\/devices\/.*\)'\'':/\1/p') | |
1013 | local dev_path | |
1014 | for dev_path in $dev_paths; do | |
1015 | local modalias_file="/sys$dev_path/modalias" | |
1016 | if [ -e "$modalias_file" ]; then | |
1017 | dev_drivers="$(printf "%s\n%s" "$dev_drivers" "$(cat "$modalias_file")")" | |
1018 | fi | |
1019 | done | |
1020 | ||
dc3b976f AAF |
1021 | # if no kernel modules found and device is in a virtual subsystem, follow symlinks |
1022 | if [[ -z $dev_drivers && $(udevadm info -q path "$1") == "/devices/virtual"* ]]; then | |
1023 | local dev_vkernel | |
1024 | local dev_vsubsystem | |
1025 | local dev_vpath | |
1026 | dev_vkernel=$(echo "$dev_attr_walk" | sed -n 's/\s*KERNELS=="\(\S\+\)"/\1/p' | tail -1) | |
1027 | dev_vsubsystem=$(echo "$dev_attr_walk" | sed -n 's/\s*SUBSYSTEMS=="\(\S\+\)"/\1/p' | tail -1) | |
1028 | dev_vpath="/sys/devices/virtual/$dev_vsubsystem/$dev_vkernel" | |
1029 | if [[ -n $dev_vkernel && -n $dev_vsubsystem && -d $dev_vpath ]]; then | |
1030 | local dev_links | |
1031 | local dev_link | |
1032 | dev_links=$(find "$dev_vpath" -maxdepth 1 -type l ! -name "subsystem" -exec readlink {} \;) | |
1033 | for dev_link in $dev_links; do | |
1034 | [[ -n $dev_drivers && ${dev_drivers: -1} != $'\n' ]] && dev_drivers+=$'\n' | |
1035 | dev_drivers+=$(udevadm info -a "$dev_vpath/$dev_link" \ | |
1036 | | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p' \ | |
a62e895d | 1037 | | get_module_name \ |
dc3b976f AAF |
1038 | | grep -v -e pcieport) |
1039 | done | |
1040 | fi | |
1041 | fi | |
1042 | echo "$dev_drivers" | |
cbafcd0f | 1043 | } |
f32e95bc VL |
1044 | |
1045 | # Check if file is in PE format | |
1046 | pe_file_format() { | |
1047 | if [[ $# -eq 1 ]]; then | |
1048 | local magic | |
1049 | magic=$(objdump -p "$1" \ | |
33a66ed0 | 1050 | | gawk '{if ($1 == "Magic"){print strtonum("0x"$2)}}') |
f32e95bc VL |
1051 | magic=$(printf "0x%x" "$magic") |
1052 | # 0x10b (PE32), 0x20b (PE32+) | |
1053 | [[ $magic == 0x20b || $magic == 0x10b ]] && return 0 | |
1054 | fi | |
1055 | return 1 | |
1056 | } | |
1057 | ||
6178a9d8 | 1058 | # Get specific data from the PE header |
1059 | pe_get_header_data() { | |
1060 | local data_header | |
1061 | [[ $# -ne "2" ]] && return 1 | |
1062 | [[ $(pe_file_format "$1") -eq 1 ]] && return 1 | |
1063 | data_header=$(objdump -p "$1" \ | |
1064 | | awk -v data="$2" '{if ($1 == data){print $2}}') | |
1065 | echo "$data_header" | |
1066 | } | |
1067 | ||
1068 | # Get the SectionAlignment data from the PE header | |
f32e95bc VL |
1069 | pe_get_section_align() { |
1070 | local align_hex | |
1071 | [[ $# -ne "1" ]] && return 1 | |
6178a9d8 | 1072 | align_hex=$(pe_get_header_data "$1" "SectionAlignment") |
1073 | [[ $? -eq 1 ]] && return 1 | |
f32e95bc VL |
1074 | echo "$((16#$align_hex))" |
1075 | } | |
6178a9d8 | 1076 | |
1077 | # Get the ImageBase data from the PE header | |
1078 | pe_get_image_base() { | |
1079 | local base_image | |
1080 | [[ $# -ne "1" ]] && return 1 | |
1081 | base_image=$(pe_get_header_data "$1" "ImageBase") | |
1082 | [[ $? -eq 1 ]] && return 1 | |
1083 | echo "$((16#$base_image))" | |
1084 | } |