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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 |
9a52c3fd | 57 | for l in $libdirs; do |
f769154b | 58 | _path="${l}${_delim}${1}" |
9a52c3fd | 59 | if { $DRACUT_LDD "${dracutsysrootdir}${_path}" &> /dev/null; }; then |
f769154b | 60 | printf "%s\n" "${_path}" |
a0120420 BZ |
61 | return 0 |
62 | fi | |
63 | done | |
f769154b | 64 | _path="${_delim}${1}" |
9a52c3fd | 65 | if { $DRACUT_LDD "${dracutsysrootdir}${_path}" &> /dev/null; }; then |
f769154b | 66 | printf "%s\n" "${_path}" |
f4031e8a HH |
67 | return 0 |
68 | fi | |
69 | fi | |
75d758e8 | 70 | if [[ $1 == */* ]]; then |
f769154b AT |
71 | _path="${_delim}${1}" |
72 | if [[ -L ${dracutsysrootdir}${_path} ]] || [[ -x ${dracutsysrootdir}${_path} ]]; then | |
73 | printf "%s\n" "${_path}" | |
a0120420 BZ |
74 | return 0 |
75 | fi | |
76 | fi | |
9a52c3fd | 77 | for p in $DRACUT_PATH; do |
f769154b | 78 | _path="${p}${_delim}${1}" |
9a52c3fd | 79 | if [[ -L ${dracutsysrootdir}${_path} ]] || [[ -x ${dracutsysrootdir}${_path} ]]; then |
f769154b | 80 | printf "%s\n" "${_path}" |
a0120420 BZ |
81 | return 0 |
82 | fi | |
83 | done | |
f4031e8a | 84 | |
75d758e8 | 85 | [[ -n $dracutsysrootdir ]] && return 1 |
b093aa2d | 86 | type -P "${1##*/}" |
f4031e8a HH |
87 | } |
88 | ||
9a52c3fd HH |
89 | ldconfig_paths() { |
90 | $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 |
91 | } |
92 | ||
ddf63231 | 93 | # Version comparison function. Assumes Linux style version scheme. |
f06c2b58 | 94 | # $1 = version a |
ddf63231 | 95 | # $2 = comparison op (gt, ge, eq, le, lt, ne) |
f06c2b58 HH |
96 | # $3 = version b |
97 | vercmp() { | |
3483509e | 98 | local _n1 |
2b5ddc77 | 99 | read -r -a _n1 <<< "${1//./ }" |
3483509e HH |
100 | local _op=$2 |
101 | local _n2 | |
2b5ddc77 | 102 | read -r -a _n2 <<< "${3//./ }" |
3483509e | 103 | local _i _res |
f06c2b58 | 104 | |
9a52c3fd HH |
105 | for ((_i = 0; ; _i++)); do |
106 | if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then | |
107 | _res=0 | |
108 | elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then | |
109 | _res=1 | |
110 | elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then | |
111 | _res=2 | |
112 | else | |
113 | continue | |
f06c2b58 HH |
114 | fi |
115 | break | |
116 | done | |
117 | ||
118 | case $_op in | |
9a52c3fd HH |
119 | gt) ((_res == 1)) ;; |
120 | ge) ((_res != 2)) ;; | |
121 | eq) ((_res == 0)) ;; | |
122 | le) ((_res != 1)) ;; | |
123 | lt) ((_res == 2)) ;; | |
124 | ne) ((_res != 0)) ;; | |
f06c2b58 HH |
125 | esac |
126 | } | |
127 | ||
87122afc AŻ |
128 | # Create all subdirectories for given path without creating the last element. |
129 | # $1 = path | |
b093aa2d | 130 | mksubdirs() { |
3483509e | 131 | # shellcheck disable=SC2174 |
b093aa2d HH |
132 | [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}" |
133 | } | |
87122afc | 134 | |
87122afc AŻ |
135 | # Function prints global variables in format name=value line by line. |
136 | # $@ = list of global variables' name | |
137 | print_vars() { | |
29b10e65 | 138 | local _var _value |
87122afc | 139 | |
9a52c3fd | 140 | for _var in "$@"; do |
7a94a432 | 141 | eval printf -v _value "%s" \""\$$_var"\" |
b093aa2d | 142 | [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value" |
87122afc AŻ |
143 | done |
144 | } | |
145 | ||
7e2bca48 HH |
146 | # normalize_path <path> |
147 | # Prints the normalized path, where it removes any duplicated | |
148 | # and trailing slashes. | |
149 | # Example: | |
150 | # $ normalize_path ///test/test// | |
151 | # /test/test | |
626d9eba | 152 | normalize_path() { |
2b5ddc77 HH |
153 | # shellcheck disable=SC2064 |
154 | trap "$(shopt -p extglob)" RETURN | |
c44e3cb4 | 155 | shopt -q -s extglob |
2b5ddc77 HH |
156 | local p=${1//+(\/)//} |
157 | printf "%s\n" "${p%/}" | |
626d9eba | 158 | } |
d4bb4316 | 159 | |
7e2bca48 HH |
160 | # convert_abs_rel <from> <to> |
161 | # Prints the relative path, when creating a symlink to <to> from <from>. | |
162 | # Example: | |
163 | # $ convert_abs_rel /usr/bin/test /bin/test-2 | |
164 | # ../../bin/test-2 | |
165 | # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test | |
d4bb4316 | 166 | convert_abs_rel() { |
6d2a7942 | 167 | local __current __absolute __abssize __cursize __newpath |
c44e3cb4 | 168 | local -i __i __level |
d4bb4316 | 169 | |
c44e3cb4 MS |
170 | set -- "$(normalize_path "$1")" "$(normalize_path "$2")" |
171 | ||
c1609dd4 | 172 | # corner case #1 - self looping link |
75d758e8 | 173 | [[ $1 == "$2" ]] && { |
9a52c3fd HH |
174 | printf "%s\n" "${1##*/}" |
175 | return | |
176 | } | |
c1609dd4 MS |
177 | |
178 | # corner case #2 - own dir link | |
75d758e8 | 179 | [[ ${1%/*} == "$2" ]] && { |
9a52c3fd HH |
180 | printf ".\n" |
181 | return | |
182 | } | |
c1609dd4 | 183 | |
2b5ddc77 HH |
184 | IFS=/ read -r -a __current <<< "$1" |
185 | IFS=/ read -r -a __absolute <<< "$2" | |
d4bb4316 HH |
186 | |
187 | __abssize=${#__absolute[@]} | |
188 | __cursize=${#__current[@]} | |
189 | ||
75d758e8 | 190 | while [[ ${__absolute[__level]} == "${__current[__level]}" ]]; do |
9a52c3fd HH |
191 | ((__level++)) |
192 | if ((__level > __abssize || __level > __cursize)); then | |
d4bb4316 HH |
193 | break |
194 | fi | |
195 | done | |
196 | ||
9a52c3fd HH |
197 | for ((__i = __level; __i < __cursize - 1; __i++)); do |
198 | if ((__i > __level)); then | |
d4bb4316 HH |
199 | __newpath=$__newpath"/" |
200 | fi | |
201 | __newpath=$__newpath".." | |
202 | done | |
203 | ||
9a52c3fd HH |
204 | for ((__i = __level; __i < __abssize; __i++)); do |
205 | if [[ -n $__newpath ]]; then | |
d4bb4316 HH |
206 | __newpath=$__newpath"/" |
207 | fi | |
208 | __newpath=$__newpath${__absolute[__i]} | |
209 | done | |
210 | ||
3483509e | 211 | printf -- "%s\n" "$__newpath" |
d4bb4316 HH |
212 | } |
213 | ||
7e2bca48 | 214 | # get_fs_env <device> |
97af51db | 215 | # Get and the ID_FS_TYPE variable from udev for a device. |
7e2bca48 | 216 | # Example: |
97af51db | 217 | # $ get_fs_env /dev/sda2 |
7e2bca48 | 218 | # ext4 |
9ede1929 | 219 | get_fs_env() { |
7c179686 | 220 | [[ $1 ]] || return |
29b10e65 | 221 | unset ID_FS_TYPE |
69f7ed96 | 222 | ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \ |
2b5ddc77 HH |
223 | | while read -r line || [ -n "$line" ]; do |
224 | if [[ $line == "TYPE="* ]]; then | |
9a52c3fd HH |
225 | printf "%s" "${line#TYPE=}" |
226 | exit 0 | |
69f7ed96 | 227 | fi |
9a52c3fd | 228 | done) |
69f7ed96 HH |
229 | if [[ $ID_FS_TYPE ]]; then |
230 | printf "%s" "$ID_FS_TYPE" | |
231 | return 0 | |
7c179686 | 232 | fi |
a5cde2dd HH |
233 | return 1 |
234 | } | |
9ede1929 | 235 | |
7e2bca48 HH |
236 | # get_maj_min <device> |
237 | # Prints the major and minor of a device node. | |
238 | # Example: | |
239 | # $ get_maj_min /dev/sda2 | |
240 | # 8:2 | |
480d772f | 241 | get_maj_min() { |
224175d8 | 242 | local _majmin |
a277a5fc HH |
243 | local _out |
244 | ||
245 | if [[ $get_maj_min_cache_file ]]; then | |
67591e88 | 246 | _out="$(grep -m1 -oE "^$1 \S+$" "$get_maj_min_cache_file" | awk '{print $NF}')" |
a277a5fc HH |
247 | fi |
248 | ||
249 | if ! [[ "$_out" ]]; then | |
c3bb9d18 | 250 | _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)" |
a277a5fc HH |
251 | _out="$(printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))")" |
252 | if [[ $get_maj_min_cache_file ]]; then | |
253 | echo "$1 $_out" >> "$get_maj_min_cache_file" | |
254 | fi | |
c3bb9d18 | 255 | fi |
a277a5fc | 256 | echo -n "$_out" |
480d772f HH |
257 | } |
258 | ||
281327f7 HH |
259 | # get_devpath_block <device> |
260 | # get the DEVPATH in /sys of a block device | |
261 | get_devpath_block() { | |
8552a327 | 262 | local _majmin _i |
281327f7 HH |
263 | _majmin=$(get_maj_min "$1") |
264 | ||
265 | for _i in /sys/block/*/dev /sys/block/*/*/dev; do | |
75d758e8 HH |
266 | [[ -e $_i ]] || continue |
267 | if [[ $_majmin == "$(< "$_i")" ]]; then | |
281327f7 HH |
268 | printf "%s" "${_i%/dev}" |
269 | return 0 | |
270 | fi | |
271 | done | |
272 | return 1 | |
273 | } | |
274 | ||
69f7ed96 HH |
275 | # get a persistent path from a device |
276 | get_persistent_dev() { | |
b6054b5d | 277 | local i _tmp _dev _pol |
69f7ed96 HH |
278 | |
279 | _dev=$(get_maj_min "$1") | |
280 | [ -z "$_dev" ] && return | |
281 | ||
75d758e8 | 282 | if [[ -n $persistent_policy ]]; then |
9a52c3fd | 283 | _pol="/dev/disk/${persistent_policy}/*" |
b6054b5d | 284 | else |
9a52c3fd | 285 | _pol= |
b6054b5d MW |
286 | fi |
287 | ||
324ea606 | 288 | for i in \ |
b6054b5d | 289 | $_pol \ |
324ea606 | 290 | /dev/mapper/* \ |
324ea606 HH |
291 | /dev/disk/by-uuid/* \ |
292 | /dev/disk/by-label/* \ | |
293 | /dev/disk/by-partuuid/* \ | |
294 | /dev/disk/by-partlabel/* \ | |
295 | /dev/disk/by-id/* \ | |
9a52c3fd | 296 | /dev/disk/by-path/*; do |
75d758e8 | 297 | [[ -e $i ]] || continue |
1743473b | 298 | [[ $i == /dev/mapper/control ]] && continue |
69f7ed96 HH |
299 | [[ $i == /dev/mapper/mpath* ]] && continue |
300 | _tmp=$(get_maj_min "$i") | |
301 | if [ "$_tmp" = "$_dev" ]; then | |
302 | printf -- "%s" "$i" | |
303 | return | |
304 | fi | |
305 | done | |
9efb74a3 | 306 | printf -- "%s" "$1" |
69f7ed96 HH |
307 | } |
308 | ||
c82a1133 HH |
309 | expand_persistent_dev() { |
310 | local _dev=$1 | |
311 | ||
312 | case "$_dev" in | |
313 | LABEL=*) | |
314 | _dev="/dev/disk/by-label/${_dev#LABEL=}" | |
315 | ;; | |
316 | UUID=*) | |
317 | _dev="${_dev#UUID=}" | |
93b02f50 | 318 | _dev="${_dev,,}" |
c82a1133 HH |
319 | _dev="/dev/disk/by-uuid/${_dev}" |
320 | ;; | |
321 | PARTUUID=*) | |
322 | _dev="${_dev#PARTUUID=}" | |
93b02f50 | 323 | _dev="${_dev,,}" |
c82a1133 HH |
324 | _dev="/dev/disk/by-partuuid/${_dev}" |
325 | ;; | |
326 | PARTLABEL=*) | |
327 | _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}" | |
328 | ;; | |
329 | esac | |
330 | printf "%s" "$_dev" | |
331 | } | |
332 | ||
324ea606 | 333 | shorten_persistent_dev() { |
c82a1133 HH |
334 | local _dev="$1" |
335 | case "$_dev" in | |
324ea606 | 336 | /dev/disk/by-uuid/*) |
9a52c3fd HH |
337 | printf "%s" "UUID=${_dev##*/}" |
338 | ;; | |
324ea606 | 339 | /dev/disk/by-label/*) |
9a52c3fd HH |
340 | printf "%s" "LABEL=${_dev##*/}" |
341 | ;; | |
324ea606 | 342 | /dev/disk/by-partuuid/*) |
9a52c3fd HH |
343 | printf "%s" "PARTUUID=${_dev##*/}" |
344 | ;; | |
324ea606 | 345 | /dev/disk/by-partlabel/*) |
9a52c3fd HH |
346 | printf "%s" "PARTLABEL=${_dev##*/}" |
347 | ;; | |
324ea606 | 348 | *) |
9a52c3fd HH |
349 | printf "%s" "$_dev" |
350 | ;; | |
324ea606 HH |
351 | esac |
352 | } | |
353 | ||
7e2bca48 HH |
354 | # find_block_device <mountpoint> |
355 | # Prints the major and minor number of the block device | |
356 | # for a given mountpoint. | |
357 | # Unless $use_fstab is set to "yes" the functions | |
358 | # uses /proc/self/mountinfo as the primary source of the | |
359 | # information and only falls back to /etc/fstab, if the mountpoint | |
360 | # is not found there. | |
361 | # Example: | |
362 | # $ find_block_device /usr | |
363 | # 8:4 | |
f76ef3aa | 364 | find_block_device() { |
9918afd2 | 365 | local _dev _majmin _find_mpt |
c8d685c9 | 366 | _find_mpt="$1" |
3483509e | 367 | |
0b706743 | 368 | if [[ $use_fstab != yes ]]; then |
9d36d4fb | 369 | [[ -d $_find_mpt/. ]] |
9a52c3fd | 370 | findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { |
2b5ddc77 | 371 | while read -r _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
372 | if [[ -b $_dev ]]; then |
373 | if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then | |
2b5ddc77 | 374 | _majmin=$(get_maj_min "$_dev") |
dba20559 HH |
375 | fi |
376 | if [[ $_majmin ]]; then | |
466a5998 | 377 | printf "%s\n" "$_majmin" |
dba20559 | 378 | else |
466a5998 | 379 | printf "%s\n" "$_dev" |
dba20559 HH |
380 | fi |
381 | return 0 | |
382 | fi | |
75d758e8 | 383 | if [[ $_dev == *:* ]]; then |
466a5998 | 384 | printf "%s\n" "$_dev" |
dba20559 HH |
385 | return 0 |
386 | fi | |
9a52c3fd HH |
387 | done |
388 | return 1 | |
389 | } && return 0 | |
dba20559 HH |
390 | fi |
391 | # fall back to /etc/fstab | |
e9ed44c8 | 392 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
dba20559 | 393 | |
9a52c3fd | 394 | findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { |
2b5ddc77 | 395 | while read -r _majmin _dev || [ -n "$_dev" ]; do |
dba20559 HH |
396 | if ! [[ $_dev ]]; then |
397 | _dev="$_majmin" | |
398 | unset _majmin | |
399 | fi | |
9d36d4fb | 400 | if [[ -b $_dev ]]; then |
2b5ddc77 | 401 | [[ $_majmin ]] || _majmin=$(get_maj_min "$_dev") |
9d36d4fb | 402 | if [[ $_majmin ]]; then |
466a5998 | 403 | printf "%s\n" "$_majmin" |
9d36d4fb | 404 | else |
466a5998 | 405 | printf "%s\n" "$_dev" |
9d36d4fb HH |
406 | fi |
407 | return 0 | |
408 | fi | |
75d758e8 | 409 | if [[ $_dev == *:* ]]; then |
466a5998 | 410 | printf "%s\n" "$_dev" |
9d36d4fb | 411 | return 0 |
cc02093d | 412 | fi |
9a52c3fd HH |
413 | done |
414 | return 1 | |
415 | } && return 0 | |
0b706743 AŻ |
416 | |
417 | return 1 | |
17829e94 VL |
418 | } |
419 | ||
9d36d4fb HH |
420 | # find_mp_fstype <mountpoint> |
421 | # Echo the filesystem type for a given mountpoint. | |
7e2bca48 HH |
422 | # /proc/self/mountinfo is taken as the primary source of information |
423 | # and /etc/fstab is used as a fallback. | |
424 | # No newline is appended! | |
425 | # Example: | |
9d36d4fb | 426 | # $ find_mp_fstype /;echo |
7e2bca48 | 427 | # ext4 |
9d36d4fb HH |
428 | find_mp_fstype() { |
429 | local _fs | |
7ae5d9d1 | 430 | |
9d36d4fb | 431 | if [[ $use_fstab != yes ]]; then |
9a52c3fd | 432 | findmnt -e -v -n -o 'FSTYPE' --target "$1" | { |
2b5ddc77 | 433 | while read -r _fs || [ -n "$_fs" ]; do |
dba20559 | 434 | [[ $_fs ]] || continue |
75d758e8 | 435 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 436 | printf "%s" "$_fs" |
dba20559 | 437 | return 0 |
9a52c3fd HH |
438 | done |
439 | return 1 | |
440 | } && return 0 | |
dba20559 HH |
441 | fi |
442 | ||
e9ed44c8 TL |
443 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
444 | ||
9a52c3fd | 445 | findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { |
2b5ddc77 | 446 | while read -r _fs || [ -n "$_fs" ]; do |
9d36d4fb | 447 | [[ $_fs ]] || continue |
75d758e8 | 448 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 449 | printf "%s" "$_fs" |
9d36d4fb | 450 | return 0 |
9a52c3fd HH |
451 | done |
452 | return 1 | |
453 | } && return 0 | |
7ae5d9d1 HH |
454 | |
455 | return 1 | |
456 | } | |
457 | ||
9d36d4fb HH |
458 | # find_dev_fstype <device> |
459 | # Echo the filesystem type for a given device. | |
81672479 HH |
460 | # /proc/self/mountinfo is taken as the primary source of information |
461 | # and /etc/fstab is used as a fallback. | |
462 | # No newline is appended! | |
463 | # Example: | |
9d36d4fb | 464 | # $ find_dev_fstype /dev/sda2;echo |
81672479 | 465 | # ext4 |
9d36d4fb | 466 | find_dev_fstype() { |
5e601454 | 467 | local _find_dev _fs |
9d36d4fb | 468 | _find_dev="$1" |
75d758e8 | 469 | if ! [[ $_find_dev == /dev* ]]; then |
a4f7b504 HH |
470 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" |
471 | fi | |
5e601454 HH |
472 | |
473 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 474 | findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { |
2b5ddc77 | 475 | while read -r _fs || [ -n "$_fs" ]; do |
dba20559 | 476 | [[ $_fs ]] || continue |
75d758e8 | 477 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 478 | printf "%s" "$_fs" |
dba20559 | 479 | return 0 |
9a52c3fd HH |
480 | done |
481 | return 1 | |
482 | } && return 0 | |
dba20559 HH |
483 | fi |
484 | ||
e9ed44c8 TL |
485 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
486 | ||
9a52c3fd | 487 | findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { |
2b5ddc77 | 488 | while read -r _fs || [ -n "$_fs" ]; do |
5e601454 | 489 | [[ $_fs ]] || continue |
75d758e8 | 490 | [[ $_fs == "autofs" ]] && continue |
466a5998 | 491 | printf "%s" "$_fs" |
5e601454 | 492 | return 0 |
9a52c3fd HH |
493 | done |
494 | return 1 | |
495 | } && return 0 | |
5e601454 HH |
496 | |
497 | return 1 | |
97af51db | 498 | } |
5e601454 | 499 | |
bbc9bfe1 HH |
500 | # find_mp_fsopts <mountpoint> |
501 | # Echo the filesystem options for a given mountpoint. | |
502 | # /proc/self/mountinfo is taken as the primary source of information | |
503 | # and /etc/fstab is used as a fallback. | |
504 | # No newline is appended! | |
505 | # Example: | |
506 | # $ find_mp_fsopts /;echo | |
507 | # rw,relatime,discard,data=ordered | |
508 | find_mp_fsopts() { | |
509 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 510 | findmnt -e -v -n -o 'OPTIONS' --target "$1" 2> /dev/null && return 0 |
bbc9bfe1 HH |
511 | fi |
512 | ||
e9ed44c8 TL |
513 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
514 | ||
bbc9bfe1 HH |
515 | findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1" |
516 | } | |
517 | ||
97af51db HH |
518 | # find_dev_fsopts <device> |
519 | # Echo the filesystem options for a given device. | |
520 | # /proc/self/mountinfo is taken as the primary source of information | |
521 | # and /etc/fstab is used as a fallback. | |
3483509e HH |
522 | # if `use_fstab == yes`, then only `/etc/fstab` is used. |
523 | # | |
97af51db HH |
524 | # Example: |
525 | # $ find_dev_fsopts /dev/sda2 | |
526 | # rw,relatime,discard,data=ordered | |
527 | find_dev_fsopts() { | |
3483509e | 528 | local _find_dev |
97af51db | 529 | _find_dev="$1" |
75d758e8 | 530 | if ! [[ $_find_dev == /dev* ]]; then |
97af51db HH |
531 | [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev" |
532 | fi | |
533 | ||
534 | if [[ $use_fstab != yes ]]; then | |
9a52c3fd | 535 | findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2> /dev/null && return 0 |
97af51db HH |
536 | fi |
537 | ||
e9ed44c8 TL |
538 | [[ ! -f "$dracutsysrootdir"/etc/fstab ]] && return 1 |
539 | ||
97af51db | 540 | findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev" |
81672479 HH |
541 | } |
542 | ||
7ae5d9d1 | 543 | # finds the major:minor of the block device backing the root filesystem. |
f76ef3aa VL |
544 | find_root_block_device() { find_block_device /; } |
545 | ||
7e2bca48 | 546 | # for_each_host_dev_fs <func> |
d351541e | 547 | # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
7e2bca48 | 548 | # in ${host_fs_types[@]} |
9a52c3fd | 549 | for_each_host_dev_fs() { |
480d772f | 550 | local _func="$1" |
d0096de7 | 551 | local _dev |
2efa546f | 552 | local _ret=1 |
fd191a7b | 553 | |
e6199960 PL |
554 | [[ "${#host_fs_types[@]}" ]] || return 2 |
555 | ||
d351541e HH |
556 | for _dev in "${!host_fs_types[@]}"; do |
557 | $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 | |
480d772f | 558 | done |
2efa546f | 559 | return $_ret |
480d772f HH |
560 | } |
561 | ||
9a52c3fd | 562 | host_fs_all() { |
466a5998 | 563 | printf "%s\n" "${host_fs_types[@]}" |
fd191a7b HH |
564 | } |
565 | ||
17829e94 VL |
566 | # Walk all the slave relationships for a given block device. |
567 | # Stop when our helper function returns success | |
568 | # $1 = function to call on every found block device | |
569 | # $2 = block device in major:minor format | |
0b706743 | 570 | check_block_and_slaves() { |
29b10e65 | 571 | local _x |
17829e94 | 572 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
2b5ddc77 | 573 | if ! lvm_internal_dev "$2"; then "$1" "$2" && return; fi |
533d7dc4 | 574 | check_vol_slaves "$@" && return 0 |
e64dafd1 | 575 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
2b5ddc77 | 576 | check_block_and_slaves "$1" "$(< "/sys/dev/block/$2/../dev")" && return 0 |
a3afcf2a | 577 | fi |
2b5ddc77 | 578 | for _x in /sys/dev/block/"$2"/slaves/*; do |
e64dafd1 HH |
579 | [[ -f $_x/dev ]] || continue |
580 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
2b5ddc77 | 581 | check_block_and_slaves "$1" "$(< "$_x/dev")" && return 0 |
17829e94 VL |
582 | done |
583 | return 1 | |
584 | } | |
585 | ||
83e0dc7a DY |
586 | check_block_and_slaves_all() { |
587 | local _x _ret=1 | |
588 | [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. | |
2b5ddc77 | 589 | if ! lvm_internal_dev "$2" && "$1" "$2"; then |
dba20559 | 590 | _ret=0 |
83e0dc7a | 591 | fi |
c7c8c498 | 592 | check_vol_slaves_all "$@" && return 0 |
e64dafd1 | 593 | if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then |
2b5ddc77 | 594 | check_block_and_slaves_all "$1" "$(< "/sys/dev/block/$2/../dev")" && _ret=0 |
83e0dc7a | 595 | fi |
2b5ddc77 | 596 | for _x in /sys/dev/block/"$2"/slaves/*; do |
e64dafd1 HH |
597 | [[ -f $_x/dev ]] || continue |
598 | [[ $_x/subsystem -ef /sys/class/block ]] || continue | |
2b5ddc77 | 599 | check_block_and_slaves_all "$1" "$(< "$_x/dev")" && _ret=0 |
83e0dc7a DY |
600 | done |
601 | return $_ret | |
602 | } | |
603 | # for_each_host_dev_and_slaves <func> | |
604 | # Execute "<func> <dev>" for every "<dev>" found | |
605 | # in ${host_devs[@]} and their slaves | |
9a52c3fd | 606 | for_each_host_dev_and_slaves_all() { |
83e0dc7a DY |
607 | local _func="$1" |
608 | local _dev | |
609 | local _ret=1 | |
fd191a7b | 610 | |
3483509e | 611 | [[ "${host_devs[*]}" ]] || return 2 |
fd191a7b | 612 | |
3721635b | 613 | for _dev in "${host_devs[@]}"; do |
75d758e8 | 614 | [[ -b $_dev ]] || continue |
2b5ddc77 | 615 | if check_block_and_slaves_all "$_func" "$(get_maj_min "$_dev")"; then |
dba20559 | 616 | _ret=0 |
83e0dc7a DY |
617 | fi |
618 | done | |
619 | return $_ret | |
620 | } | |
621 | ||
9a52c3fd | 622 | for_each_host_dev_and_slaves() { |
83e0dc7a DY |
623 | local _func="$1" |
624 | local _dev | |
fd191a7b | 625 | |
3483509e | 626 | [[ "${host_devs[*]}" ]] || return 2 |
fd191a7b | 627 | |
3721635b | 628 | for _dev in "${host_devs[@]}"; do |
75d758e8 | 629 | [[ -b $_dev ]] || continue |
2b5ddc77 | 630 | check_block_and_slaves "$_func" "$(get_maj_min "$_dev")" && return 0 |
83e0dc7a DY |
631 | done |
632 | return 1 | |
633 | } | |
634 | ||
c86f4d28 PL |
635 | # /sys/dev/block/major:minor is symbol link to real hardware device |
636 | # go downstream $(realpath /sys/dev/block/major:minor) to detect driver | |
637 | get_blockdev_drv_through_sys() { | |
638 | local _block_mods="" | |
639 | local _path | |
640 | ||
641 | _path=$(realpath "$1") | |
642 | while true; do | |
643 | if [[ -L "$_path"/driver/module ]]; then | |
644 | _mod=$(realpath "$_path"/driver/module) | |
645 | _mod=$(basename "$_mod") | |
646 | _block_mods="$_block_mods $_mod" | |
647 | fi | |
648 | _path=$(dirname "$_path") | |
649 | if [[ $_path == '/sys/devices' ]] || [[ $_path == '/' ]]; then | |
650 | break | |
651 | fi | |
652 | done | |
653 | echo "$_block_mods" | |
654 | } | |
655 | ||
533d7dc4 HH |
656 | # ugly workaround for the lvm design |
657 | # There is no volume group device, | |
658 | # so, there are no slave devices for volume groups. | |
659 | # Logical volumes only have the slave devices they really live on, | |
660 | # but you cannot create the logical volume without the volume group. | |
95bde758 | 661 | # And the volume group might be bigger than the devices the LV needs. |
533d7dc4 | 662 | check_vol_slaves() { |
2b5ddc77 | 663 | local _vg _pv _dm _majmin |
9ed6eb74 | 664 | _majmin="$2" |
9ed6eb74 | 665 | _dm=/sys/dev/block/$_majmin/dm |
2b5ddc77 HH |
666 | [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 |
667 | _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") | |
9ed6eb74 HH |
668 | # strip space |
669 | _vg="${_vg//[[:space:]]/}" | |
670 | if [[ $_vg ]]; then | |
9a52c3fd | 671 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2> /dev/null); do |
2b5ddc77 | 672 | check_block_and_slaves "$1" "$(get_maj_min "$_pv")" && return 0 |
9ed6eb74 HH |
673 | done |
674 | fi | |
533d7dc4 HH |
675 | return 1 |
676 | } | |
677 | ||
c7c8c498 | 678 | check_vol_slaves_all() { |
2b5ddc77 | 679 | local _vg _pv _majmin |
9ed6eb74 | 680 | _majmin="$2" |
9ed6eb74 | 681 | _dm="/sys/dev/block/$_majmin/dm" |
2b5ddc77 HH |
682 | [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 |
683 | _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") | |
9ed6eb74 HH |
684 | # strip space |
685 | _vg="${_vg//[[:space:]]/}" | |
686 | if [[ $_vg ]]; then | |
da36b76a | 687 | # when filter/global_filter is set, lvm may be failed |
2b5ddc77 | 688 | if ! lvm lvs --noheadings -o vg_name "$_vg" 2> /dev/null 1> /dev/null; then |
9a52c3fd | 689 | return 1 |
da36b76a | 690 | fi |
691 | ||
9a52c3fd | 692 | for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2> /dev/null); do |
2b5ddc77 | 693 | check_block_and_slaves_all "$1" "$(get_maj_min "$_pv")" |
9ed6eb74 HH |
694 | done |
695 | return 0 | |
696 | fi | |
c7c8c498 HH |
697 | return 1 |
698 | } | |
699 | ||
8aa99268 HH |
700 | # fs_get_option <filesystem options> <search for option> |
701 | # search for a specific option in a bunch of filesystem options | |
702 | # and return the value | |
703 | fs_get_option() { | |
704 | local _fsopts=$1 | |
705 | local _option=$2 | |
706 | local OLDIFS="$IFS" | |
707 | IFS=, | |
2b5ddc77 | 708 | # shellcheck disable=SC2086 |
8aa99268 HH |
709 | set -- $_fsopts |
710 | IFS="$OLDIFS" | |
711 | while [ $# -gt 0 ]; do | |
712 | case $1 in | |
713 | $_option=*) | |
08b63a25 | 714 | echo "${1#"${_option}"=}" |
8aa99268 | 715 | break |
9a52c3fd | 716 | ;; |
8aa99268 HH |
717 | esac |
718 | shift | |
719 | done | |
720 | } | |
721 | ||
9a52c3fd | 722 | check_kernel_config() { |
8e3f6537 HH |
723 | local _config_opt="$1" |
724 | local _config_file | |
a0120420 | 725 | [[ -f $dracutsysrootdir/boot/config-$kernel ]] \ |
8e3f6537 | 726 | && _config_file="/boot/config-$kernel" |
a0120420 | 727 | [[ -f $dracutsysrootdir/lib/modules/$kernel/config ]] \ |
8e3f6537 HH |
728 | && _config_file="/lib/modules/$kernel/config" |
729 | ||
730 | # no kernel config file, so return true | |
731 | [[ $_config_file ]] || return 0 | |
732 | ||
560f45b1 | 733 | grep -q -F "${_config_opt}=" "$dracutsysrootdir$_config_file" && return 0 |
8e3f6537 HH |
734 | return 1 |
735 | } | |
736 | ||
c050190f KS |
737 | # 0 if the kernel module is either built-in or available |
738 | # 1 if the kernel module is not enabled | |
739 | check_kernel_module() { | |
6c42d378 | 740 | modprobe -d "$dracutsysrootdir" -S "$kernel" --dry-run "$1" &> /dev/null || return 1 |
c050190f | 741 | } |
8e3f6537 | 742 | |
5f2c30d9 KRW |
743 | # get_cpu_vendor |
744 | # Only two values are returned: AMD or Intel | |
9a52c3fd | 745 | get_cpu_vendor() { |
5f2c30d9 KRW |
746 | if grep -qE AMD /proc/cpuinfo; then |
747 | printf "AMD" | |
748 | fi | |
749 | if grep -qE Intel /proc/cpuinfo; then | |
750 | printf "Intel" | |
751 | fi | |
752 | } | |
753 | ||
754 | # get_host_ucode | |
755 | # Get the hosts' ucode file based on the /proc/cpuinfo | |
9a52c3fd | 756 | get_ucode_file() { |
2b5ddc77 HH |
757 | local family |
758 | local model | |
759 | local stepping | |
122657b2 KS |
760 | family=$(grep -E "cpu family" /proc/cpuinfo | head -1 | sed "s/.*:\ //") |
761 | model=$(grep -E "model" /proc/cpuinfo | grep -v name | head -1 | sed "s/.*:\ //") | |
762 | stepping=$(grep -E "stepping" /proc/cpuinfo | head -1 | sed "s/.*:\ //") | |
5f2c30d9 KRW |
763 | |
764 | if [[ "$(get_cpu_vendor)" == "AMD" ]]; then | |
19453dc8 | 765 | if [[ $family -ge 21 ]]; then |
2b5ddc77 | 766 | printf "microcode_amd_fam%xh.bin" "$family" |
5f2c30d9 KRW |
767 | else |
768 | printf "microcode_amd.bin" | |
769 | fi | |
770 | fi | |
771 | if [[ "$(get_cpu_vendor)" == "Intel" ]]; then | |
772 | # The /proc/cpuinfo are in decimal. | |
2b5ddc77 | 773 | printf "%02x-%02x-%02x" "${family}" "${model}" "${stepping}" |
5f2c30d9 KRW |
774 | fi |
775 | } | |
96c6f6f3 MC |
776 | |
777 | # Not every device in /dev/mapper should be examined. | |
778 | # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. | |
779 | lvm_internal_dev() { | |
780 | local dev_dm_dir=/sys/dev/block/$1/dm | |
2b5ddc77 | 781 | [[ ! -f $dev_dm_dir/uuid || $(< "$dev_dm_dir"/uuid) != LVM-* ]] && return 1 # Not an LVM device |
96c6f6f3 | 782 | local DM_VG_NAME DM_LV_NAME DM_LV_LAYER |
2b5ddc77 | 783 | eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$(< "$dev_dm_dir"/name)" 2> /dev/null)" |
96c6f6f3 MC |
784 | [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! |
785 | [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] | |
786 | } | |
787 | ||
1cadc26f HH |
788 | btrfs_devs() { |
789 | local _mp="$1" | |
790 | btrfs device usage "$_mp" \ | |
2b5ddc77 | 791 | | while read -r _dev _; do |
9a52c3fd HH |
792 | str_starts "$_dev" "/" || continue |
793 | _dev=${_dev%,} | |
794 | printf -- "%s\n" "$_dev" | |
1cadc26f HH |
795 | done |
796 | } | |
ceca74cc | 797 | |
9582f027 SJ |
798 | zfs_devs() { |
799 | local _mp="$1" | |
800 | zpool list -H -v -P "${_mp%%/*}" | awk -F$'\t' '$2 ~ /^\// {print $2}' \ | |
801 | | while read -r _dev; do | |
802 | realpath "${_dev}" | |
803 | done | |
804 | } | |
805 | ||
ceca74cc | 806 | iface_for_remote_addr() { |
2b5ddc77 | 807 | # shellcheck disable=SC2046 |
ceca74cc | 808 | set -- $(ip -o route get to "$1") |
d754e1c6 MW |
809 | while [ $# -gt 0 ]; do |
810 | case $1 in | |
811 | dev) | |
812 | echo "$2" | |
813 | return | |
814 | ;; | |
815 | esac | |
816 | shift | |
817 | done | |
ceca74cc MW |
818 | } |
819 | ||
820 | local_addr_for_remote_addr() { | |
2b5ddc77 | 821 | # shellcheck disable=SC2046 |
ceca74cc | 822 | set -- $(ip -o route get to "$1") |
d754e1c6 MW |
823 | while [ $# -gt 0 ]; do |
824 | case $1 in | |
825 | src) | |
826 | echo "$2" | |
827 | return | |
828 | ;; | |
829 | esac | |
830 | shift | |
831 | done | |
ceca74cc MW |
832 | } |
833 | ||
834 | peer_for_addr() { | |
835 | local addr=$1 | |
836 | local qtd | |
837 | ||
838 | # quote periods in IPv4 address | |
839 | qtd=${addr//./\\.} | |
9a52c3fd HH |
840 | ip -o addr show \ |
841 | | sed -n 's%^.* '"$qtd"' peer \([0-9a-f.:]\{1,\}\(/[0-9]*\)\?\).*$%\1%p' | |
ceca74cc MW |
842 | } |
843 | ||
844 | netmask_for_addr() { | |
845 | local addr=$1 | |
846 | local qtd | |
847 | ||
848 | # quote periods in IPv4 address | |
849 | qtd=${addr//./\\.} | |
850 | ip -o addr show | sed -n 's,^.* '"$qtd"'/\([0-9]*\) .*$,\1,p' | |
851 | } | |
852 | ||
853 | gateway_for_iface() { | |
854 | local ifname=$1 addr=$2 | |
855 | ||
856 | case $addr in | |
9a52c3fd HH |
857 | *.*) proto=4 ;; |
858 | *:*) proto=6 ;; | |
859 | *) return ;; | |
ceca74cc | 860 | esac |
9a52c3fd HH |
861 | ip -o -$proto route show \ |
862 | | sed -n "s/^default via \([0-9a-z.:]\{1,\}\) dev $ifname .*\$/\1/p" | |
ceca74cc MW |
863 | } |
864 | ||
865 | # This works only for ifcfg-style network configuration! | |
866 | bootproto_for_iface() { | |
867 | local ifname=$1 | |
868 | local dir | |
869 | ||
870 | # follow ifcfg settings for boot protocol | |
871 | for dir in network-scripts network; do | |
872 | [ -f "/etc/sysconfig/$dir/ifcfg-$ifname" ] && { | |
873 | sed -n "s/BOOTPROTO=[\"']\?\([[:alnum:]]\{1,\}\)[\"']\?.*\$/\1/p" \ | |
874 | "/etc/sysconfig/$dir/ifcfg-$ifname" | |
875 | return | |
876 | } | |
877 | done | |
878 | } | |
879 | ||
880 | is_unbracketed_ipv6_address() { | |
881 | strglob "$1" '*:*' && ! strglob "$1" '\[*:*\]' | |
882 | } | |
883 | ||
884 | # Create an ip= string to set up networking such that the given | |
885 | # remote address can be reached | |
886 | ip_params_for_remote_addr() { | |
887 | local remote_addr=$1 | |
2b5ddc77 | 888 | local ifname local_addr peer netmask gateway ifmac |
ceca74cc MW |
889 | |
890 | [[ $remote_addr ]] || return 1 | |
891 | ifname=$(iface_for_remote_addr "$remote_addr") | |
892 | [[ $ifname ]] || { | |
893 | berror "failed to determine interface to connect to $remote_addr" | |
894 | return 1 | |
895 | } | |
896 | ||
897 | # ifname clause to bind the interface name to a MAC address | |
898 | if [ -d "/sys/class/net/$ifname/bonding" ]; then | |
899 | dinfo "Found bonded interface '${ifname}'. Make sure to provide an appropriate 'bond=' cmdline." | |
9a52c3fd | 900 | elif [ -e "/sys/class/net/$ifname/address" ]; then |
ceca74cc MW |
901 | ifmac=$(cat "/sys/class/net/$ifname/address") |
902 | [[ $ifmac ]] && printf 'ifname=%s:%s ' "${ifname}" "${ifmac}" | |
903 | fi | |
904 | ||
905 | bootproto=$(bootproto_for_iface "$ifname") | |
906 | case $bootproto in | |
9a52c3fd | 907 | dhcp | dhcp6 | auto6) ;; |
ceca74cc | 908 | dhcp4) |
9a52c3fd HH |
909 | bootproto=dhcp |
910 | ;; | |
911 | static* | "") | |
912 | bootproto= | |
913 | ;; | |
ceca74cc MW |
914 | *) |
915 | derror "bootproto \"$bootproto\" is unsupported by dracut, trying static configuration" | |
9a52c3fd HH |
916 | bootproto= |
917 | ;; | |
ceca74cc MW |
918 | esac |
919 | if [[ $bootproto ]]; then | |
920 | printf 'ip=%s:%s ' "${ifname}" "${bootproto}" | |
921 | else | |
922 | local_addr=$(local_addr_for_remote_addr "$remote_addr") | |
923 | [[ $local_addr ]] || { | |
924 | berror "failed to determine local address to connect to $remote_addr" | |
925 | return 1 | |
926 | } | |
927 | peer=$(peer_for_addr "$local_addr") | |
928 | # Set peer or netmask, but not both | |
929 | [[ $peer ]] || netmask=$(netmask_for_addr "$local_addr") | |
930 | gateway=$(gateway_for_iface "$ifname" "$local_addr") | |
931 | # Quote IPv6 addresses with brackets | |
932 | is_unbracketed_ipv6_address "$local_addr" && local_addr="[$local_addr]" | |
933 | is_unbracketed_ipv6_address "$peer" && peer="[$peer]" | |
934 | is_unbracketed_ipv6_address "$gateway" && gateway="[$gateway]" | |
935 | printf 'ip=%s:%s:%s:%s::%s:none ' \ | |
9a52c3fd | 936 | "${local_addr}" "${peer}" "${gateway}" "${netmask}" "${ifname}" |
ceca74cc MW |
937 | fi |
938 | ||
939 | } | |
480aa969 DM |
940 | |
941 | # block_is_nbd <maj:min> | |
942 | # Check whether $1 is an nbd device | |
943 | block_is_nbd() { | |
944 | [[ -b /dev/block/$1 && $1 == 43:* ]] | |
945 | } | |
946 | ||
947 | # block_is_iscsi <maj:min> | |
0afa840e | 948 | # Check whether $1 is an iSCSI device |
480aa969 DM |
949 | block_is_iscsi() { |
950 | local _dir | |
951 | local _dev=$1 | |
952 | [[ -L "/sys/dev/block/$_dev" ]] || return | |
953 | _dir="$(readlink -f "/sys/dev/block/$_dev")" || return | |
954 | until [[ -d "$_dir/sys" || -d "$_dir/iscsi_session" ]]; do | |
955 | _dir="$_dir/.." | |
956 | done | |
957 | [[ -d "$_dir/iscsi_session" ]] | |
958 | } | |
959 | ||
960 | # block_is_fcoe <maj:min> | |
961 | # Check whether $1 is an FCoE device | |
962 | # Will not work for HBAs that hide the ethernet aspect | |
963 | # completely and present a pure FC device | |
964 | block_is_fcoe() { | |
965 | local _dir | |
966 | local _dev=$1 | |
967 | [[ -L "/sys/dev/block/$_dev" ]] || return | |
968 | _dir="$(readlink -f "/sys/dev/block/$_dev")" | |
969 | until [[ -d "$_dir/sys" ]]; do | |
970 | _dir="$_dir/.." | |
971 | if [[ -d "$_dir/subsystem" ]]; then | |
2b5ddc77 | 972 | subsystem=$(basename "$(readlink "$_dir"/subsystem)") |
480aa969 DM |
973 | [[ $subsystem == "fcoe" ]] && return 0 |
974 | fi | |
975 | done | |
976 | return 1 | |
977 | } | |
978 | ||
979 | # block_is_netdevice <maj:min> | |
980 | # Check whether $1 is a net device | |
981 | block_is_netdevice() { | |
982 | block_is_nbd "$1" || block_is_iscsi "$1" || block_is_fcoe "$1" | |
983 | } | |
cbafcd0f | 984 | |
a62e895d TL |
985 | # convert the driver name given by udevadm to the corresponding kernel module name |
986 | get_module_name() { | |
987 | local dev_driver | |
988 | while read -r dev_driver; do | |
989 | case "$dev_driver" in | |
990 | mmcblk) | |
991 | echo "mmc_block" | |
992 | ;; | |
993 | *) | |
994 | echo "$dev_driver" | |
995 | ;; | |
996 | esac | |
997 | done | |
998 | } | |
999 | ||
cbafcd0f KS |
1000 | # get the corresponding kernel modules of a /sys/class/*/* or/dev/* device |
1001 | get_dev_module() { | |
dc3b976f AAF |
1002 | local dev_attr_walk |
1003 | local dev_drivers | |
87a76dbb | 1004 | local dev_paths |
dc3b976f | 1005 | dev_attr_walk=$(udevadm info -a "$1") |
a62e895d TL |
1006 | dev_drivers=$(echo "$dev_attr_walk" \ |
1007 | | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p' \ | |
1008 | | get_module_name) | |
87a76dbb AT |
1009 | |
1010 | # also return modalias info from sysfs paths parsed by udevadm | |
1011 | dev_paths=$(echo "$dev_attr_walk" | sed -n 's/.*\(\/devices\/.*\)'\'':/\1/p') | |
1012 | local dev_path | |
1013 | for dev_path in $dev_paths; do | |
1014 | local modalias_file="/sys$dev_path/modalias" | |
1015 | if [ -e "$modalias_file" ]; then | |
1016 | dev_drivers="$(printf "%s\n%s" "$dev_drivers" "$(cat "$modalias_file")")" | |
1017 | fi | |
1018 | done | |
1019 | ||
dc3b976f AAF |
1020 | # if no kernel modules found and device is in a virtual subsystem, follow symlinks |
1021 | if [[ -z $dev_drivers && $(udevadm info -q path "$1") == "/devices/virtual"* ]]; then | |
1022 | local dev_vkernel | |
1023 | local dev_vsubsystem | |
1024 | local dev_vpath | |
1025 | dev_vkernel=$(echo "$dev_attr_walk" | sed -n 's/\s*KERNELS=="\(\S\+\)"/\1/p' | tail -1) | |
1026 | dev_vsubsystem=$(echo "$dev_attr_walk" | sed -n 's/\s*SUBSYSTEMS=="\(\S\+\)"/\1/p' | tail -1) | |
1027 | dev_vpath="/sys/devices/virtual/$dev_vsubsystem/$dev_vkernel" | |
1028 | if [[ -n $dev_vkernel && -n $dev_vsubsystem && -d $dev_vpath ]]; then | |
1029 | local dev_links | |
1030 | local dev_link | |
1031 | dev_links=$(find "$dev_vpath" -maxdepth 1 -type l ! -name "subsystem" -exec readlink {} \;) | |
1032 | for dev_link in $dev_links; do | |
1033 | [[ -n $dev_drivers && ${dev_drivers: -1} != $'\n' ]] && dev_drivers+=$'\n' | |
1034 | dev_drivers+=$(udevadm info -a "$dev_vpath/$dev_link" \ | |
1035 | | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p' \ | |
a62e895d | 1036 | | get_module_name \ |
dc3b976f AAF |
1037 | | grep -v -e pcieport) |
1038 | done | |
1039 | fi | |
1040 | fi | |
1041 | echo "$dev_drivers" | |
cbafcd0f | 1042 | } |
f32e95bc VL |
1043 | |
1044 | # Check if file is in PE format | |
1045 | pe_file_format() { | |
1046 | if [[ $# -eq 1 ]]; then | |
1047 | local magic | |
1048 | magic=$(objdump -p "$1" \ | |
33a66ed0 | 1049 | | gawk '{if ($1 == "Magic"){print strtonum("0x"$2)}}') |
f32e95bc VL |
1050 | magic=$(printf "0x%x" "$magic") |
1051 | # 0x10b (PE32), 0x20b (PE32+) | |
1052 | [[ $magic == 0x20b || $magic == 0x10b ]] && return 0 | |
1053 | fi | |
1054 | return 1 | |
1055 | } | |
1056 | ||
6178a9d8 | 1057 | # Get specific data from the PE header |
1058 | pe_get_header_data() { | |
1059 | local data_header | |
1060 | [[ $# -ne "2" ]] && return 1 | |
1061 | [[ $(pe_file_format "$1") -eq 1 ]] && return 1 | |
1062 | data_header=$(objdump -p "$1" \ | |
1063 | | awk -v data="$2" '{if ($1 == data){print $2}}') | |
1064 | echo "$data_header" | |
1065 | } | |
1066 | ||
1067 | # Get the SectionAlignment data from the PE header | |
f32e95bc VL |
1068 | pe_get_section_align() { |
1069 | local align_hex | |
1070 | [[ $# -ne "1" ]] && return 1 | |
6178a9d8 | 1071 | align_hex=$(pe_get_header_data "$1" "SectionAlignment") |
1072 | [[ $? -eq 1 ]] && return 1 | |
f32e95bc VL |
1073 | echo "$((16#$align_hex))" |
1074 | } | |
6178a9d8 | 1075 | |
1076 | # Get the ImageBase data from the PE header | |
1077 | pe_get_image_base() { | |
1078 | local base_image | |
1079 | [[ $# -ne "1" ]] && return 1 | |
1080 | base_image=$(pe_get_header_data "$1" "ImageBase") | |
1081 | [[ $? -eq 1 ]] && return 1 | |
1082 | echo "$((16#$base_image))" | |
1083 | } |