summaryrefslogtreecommitdiff
path: root/functions
blob: afa54f73944264f18bb239b1104672f0dc5b917f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
#!/bin/bash
# initscripts functions
#

# width:

STAT_COL=80
if [[ ! -t 1 ]]; then
	USECOLOR=""
elif [[ -t 0 ]]; then
	# stty will fail when stdin isn't a terminal
	STAT_COL="$(/bin/stty size)"
	# stty gives "rows cols"; strip the rows number, we just want columns
	STAT_COL="${STAT_COL##* }"
elif /bin/tput cols &>/dev/null; then
	# is /usr/share/terminfo already mounted, and TERM recognized?
	STAT_COL=$(/bin/tput cols)
fi
if ((STAT_COL==0)); then
	# if output was 0 (serial console), set default width to 80
	STAT_COL=80
	USECOLOR=""
fi

# we use 13 characters for our own stuff
STAT_COL=$(($STAT_COL - 13))

# disable colors on broken terminals
TERM_COLORS="$(/bin/tput colors 2>/dev/null)"
if (($? != 3)); then
	case $TERM_COLORS in
		*[!0-9]*) USECOLOR="";;
		[0-7])    USECOLOR="";;
		'')       USECOLOR="";;
	esac
fi
unset TERM_COLORS

# clear the TZ envvar, so daemons always respect /etc/localtime
unset TZ

# sanitize the locale settins
unset LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY \
      LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE \
      LC_MEASUREMENT LC_IDENTIFICATION LC_ALL
if [[ $DAEMON_LOCALE =~ yes|YES && -n $LOCALE ]]; then
	export LANG="${LOCALE}"
else
	export LANG=C
fi

# set colors
if [[ $USECOLOR =~ yes|YES ]]; then
	if /bin/tput setaf 0 &>/dev/null; then
		C_CLEAR="$(tput sgr0)"                      # clear text
		C_MAIN="${C_CLEAR}$(/bin/tput bold)"        # main text
		C_OTHER="${C_MAIN}$(/bin/tput setaf 4)"     # prefix & brackets
		C_SEPARATOR="${C_MAIN}$(/bin/tput setaf 0)" # separator
		C_BUSY="${C_CLEAR}$(/bin/tput setaf 6)"     # busy
		C_FAIL="${C_MAIN}$(/bin/tput setaf 1)"      # failed
		C_DONE="${C_MAIN}"                          # completed
		C_BKGD="${C_MAIN}$(/bin/tput setaf 5)"      # backgrounded
		C_H1="${C_MAIN}"                            # highlight text 1
		C_H2="${C_MAIN}$(/bin/tput setaf 6)"        # highlight text 2
	else
		C_CLEAR="\e[m"          # clear text
		C_MAIN="\e[;1m"         # main text
		C_OTHER="\e[1;35m"      # prefix & brackets
		C_SEPARATOR="\e[1;30m"  # separator
		C_BUSY="\e[;36m"        # busy
		C_FAIL="\e[1;31m"       # failed
		C_DONE="${C_MAIN}"      # completed
		C_BKGD="\e[1;35m"       # backgrounded
		C_H1="${C_MAIN}"        # highlight text 1
		C_H2="\e[1;36m"         # highlight text 2
	fi
fi

if [[ -t 1 ]]; then
	SAVE_POSITION="\e[s"
	RESTORE_POSITION="\e[u"
	DEL_TEXT="\e[$(($STAT_COL+4))G"
else
	SAVE_POSITION=""
	RESTORE_POSITION=""
	DEL_TEXT=""
fi

# prefixes:

PREFIX_REG="::"
PREFIX_HL=" >"

# functions:

deltext() {
	printf "${DEL_TEXT}"
}

printhl() {
	printf "${C_OTHER}${PREFIX_HL} ${C_H1}${1}${C_CLEAR} \n"
}

printsep() {
	printf "\n${C_SEPARATOR}   ------------------------------\n"
}

stat_bkgd() {
	printf "${C_OTHER}${PREFIX_REG} ${C_MAIN}${1}${C_CLEAR} "
	deltext
	printf "   ${C_OTHER}[${C_BKGD}BKGD${C_OTHER}]${C_CLEAR} "
}

stat_busy() {
	printf "${C_OTHER}${PREFIX_REG} ${C_MAIN}${1}${C_CLEAR} "
	printf "${SAVE_POSITION}"
	deltext
	printf "   ${C_OTHER}[${C_BUSY}BUSY${C_OTHER}]${C_CLEAR} "
}

stat_append() {
	printf "${RESTORE_POSITION}"
	printf -- "${C_MAIN}${1}${C_CLEAR}"
	printf "${SAVE_POSITION}"
}

stat_done() {
	deltext
	printf "   ${C_OTHER}[${C_DONE}DONE${C_OTHER}]${C_CLEAR} \n"
}

stat_fail() {
	deltext
	printf "   ${C_OTHER}[${C_FAIL}FAIL${C_OTHER}]${C_CLEAR} \n"
}

stat_die() {
	stat_fail
	exit ${1:-1}
}

status() {
	stat_busy "$1"
	shift
	if "$@" >/dev/null 2>&1; then
		stat_done
		return 0
	fi
	stat_fail
	return 1
}

#  usage : in_array( $needle, $haystack )
# return : 0 - found
#          1 - not found
# Copied from makepkg
in_array() {
	[[ $2 ]] || return 1
	local needle=$1; shift
	local item
	for item in "$@"; do
		[[ ${item#@} = $needle ]] && return 0
	done
	return 1 # Not Found
}

# daemons:

add_daemon() {
	[[ -d /run/daemons ]] || /bin/mkdir -p /run/daemons
	> /run/daemons/"$1"
}

rm_daemon() {
	/bin/rm -f /run/daemons/"$1"
}

ck_daemon() {
	[[ ! -f /run/daemons/$1 ]]
}

# Check if $1 is a valid daemon name
have_daemon() {
	[[ -f /etc/rc.d/$1 && -x /etc/rc.d/$1 ]]
}

# Check if $1 is started at boot
ck_autostart() {
	local d
	for d in "${DAEMONS[@]}"; do
		[[ "$1" = ${d#@} ]] && return 1
	done
	return 0
}

start_daemon() {
	have_daemon "$1" && /etc/rc.d/"$1" start
}

ck_depends() {
	for daemon in "$@"; do
		ck_daemon "$daemon" && start_daemon "$daemon"
	done
}

start_daemon_bkgd() {
	stat_bkgd "Starting $1"
	have_daemon "$1" && (start_daemon "$1") &>/dev/null &
}

stop_daemon() {
	have_daemon "$1" && /etc/rc.d/"$1" stop
}

# Status functions
status_started() {
	deltext
	echo -ne "$C_OTHER[${C_STRT}STARTED$C_OTHER]$C_CLEAR "
}

status_stopped() {
	deltext
	echo -ne "$C_OTHER[${C_STRT}STOPPED$C_OTHER]$C_CLEAR "
}

ck_status() {
	if ! ck_daemon "$1"; then
		status_started
	else
		status_stopped
	fi
}

# PIDs to be omitted by killall5
declare -a omit_pids

add_omit_pids() {
	omit_pids+=( $@ )
}


kill_everything() {
	# $1 = where we are being called from.
	# This is used to determine which hooks to run.
	# Find daemons NOT in the DAEMONS array. Shut these down first
	for daemon in /run/daemons/*; do
		[[ -f $daemon ]] || continue
		daemon=${daemon##*/}
		in_array "$daemon" "${DAEMONS[@]}" || stop_daemon "$daemon"
	done

	# Shutdown daemons in reverse order
	for ((i=${#DAEMONS[@]}-1; i>=0; i--)); do
		[[ ${DAEMONS[$i]:0:1} = '!' ]] && continue
		ck_daemon ${DAEMONS[$i]#@} || stop_daemon ${DAEMONS[$i]#@}
	done

	# Terminate all processes
	stat_busy "Sending SIGTERM To Processes"
	run_hook "$1_prekillall"
	local pid k5args=""
	for pid in ${omit_pids[@]}; do
		k5args+=" -o $pid"
	done
	/sbin/killall5 -15 $k5args &> /dev/null
	/bin/sleep 5
	stat_done

	stat_busy "Sending SIGKILL To Processes"
	/sbin/killall5 -9 $k5args &> /dev/null
	/bin/sleep 1
	stat_done

	run_hook "$1_postkillall"
}

activate_vgs() {
	[[ $USELVM =~ yes|YES && -x /sbin/lvm && -d /sys/block ]] || return
	# Kernel 2.6.x, LVM2 groups
	/sbin/modprobe -q dm-mod 2>/dev/null
	stat_busy "Activating LVM2 groups"
	if /sbin/vgchange --sysinit -a y >/dev/null; then
		stat_done
	else
		stat_fail
	fi
}

# Arch cryptsetup packages traditionally contained the binaries
#  /usr/sbin/cryptsetup
#  /sbin/cryptsetup.static
# By default, initscripts used the /sbin/cryptsetup.static.
# Newer packages will only have /sbin/cryptsetup and no static binary
# This ensures maximal compatibility with the old and new layout
for CS in /sbin/cryptsetup /usr/sbin/cryptsetup \
	/sbin/cryptsetup.static ''; do
	[[ -x $CS ]] && break
done

read_crypttab() {
	# $1 = function to call with the split out line from the crypttab
	local line nspo failed=0
	while read line; do
		[[ $line && ${line:0:1} != '#' ]] || continue
		eval nspo=("${line%#*}")
		if $1 "${nspo[0]}" "${nspo[1]}" "${nspo[2]}" "${nspo[*]:3}"; then
			crypto_unlocked=1
		else
			failed=1
		fi
	done < /etc/crypttab
	return $failed
}

###############################
# Custom hooks in initscripts #
###############################
# Hooks can be used to include custom code in various places in the rc.* scripts
#
# Define a hook function in a functions.d file using:
#  function_name() {
#    ...
#  }
#  add_hook hook_name function_name
# It is allowed to register several hook functions for the same hook
# Is is also allowed to register the same hook function for several hooks
#
# Currently, the following hooks exist:
# sysinit_start: at the beginning of rc.sysinit
# multi_start: at the beginning of rc.multi
# single_start: at the beginning of rc.single
# shutdown_start: at the beginning of rc.shutdown
# sysinit_end: at the end of rc.sysinit
# multi_end: at the end of rc.multi
# single_end: at the end of rc.single
# sysinit_udevlaunched: after udev has been launched in rc.sysinit
# single_udevlaunched: after udev has been launched in rc.single
# sysinit_udevsettled: after uevents have settled in rc.sysinit
# single_udevsettled: after uevents have settled in rc.single
# sysinit_premount: before local filesystems are mounted, but after root is mounted read-write in rc.sysinit
# shutdown_prekillall: before all processes are being killed in rc.shutdown
# single_prekillall: before all processes are being killed in rc.single
# shutdown_postkillall: after all processes have been killed in rc.shutdown
# single_postkillall: after all processes have been killed in rc.single
# shutdown_poweroff: directly before powering off in rc.shutdown
#
# Declare add_hook and run_hook as read-only to prevent overwriting them.
# Too bad we cannot do the same thing with hook_funcs

if [[ $RC_FUNCTIONS_HOOK_FUNCS_DEFINED -ne 1 ]]; then
	declare -A hook_funcs

	add_hook() {
		[[ $1 && $2 ]] || return 1
		hook_funcs["$1"]+=" $2"
	}

	run_hook() {
		[[ $1 ]] || return 1
		local func
		for func in ${hook_funcs["$1"]}; do
			"${func}"
		done
	}

	declare -fr add_hook run_hook
	declare -r RC_FUNCTIONS_HOOK_FUNCS_DEFINED=1
fi

# Function for setting console font if required
set_consolefont() {
	[[ $CONSOLEFONT ]] || return 0
	stat_busy "Loading Console Font: $CONSOLEFONT"
	#CONSOLEMAP in UTF-8 shouldn't be used
	[[ $CONSOLEMAP && ${LOCALE,,} =~ utf ]] && CONSOLEMAP=""
	for i in /dev/tty[0-9]*; do
		/usr/bin/setfont ${CONSOLEMAP:+-m ${CONSOLEMAP}} \
		$CONSOLEFONT -C ${i} >/dev/null 2>&1
	done
	if (($? != 0)); then
		stat_fail
	elif [[ $CONSOLEMAP ]]; then
		cat <<"EOF" >>/etc/profile.d/locale.sh
if [ "$CONSOLE" = "" -a "$TERM" = "linux" -a -t 1 ]; then printf "\033(K"; fi
EOF
		stat_done
	else
		stat_done
	fi
}

# Source additional functions at the end to allow overrides
for f in /etc/rc.d/functions.d/*; do
	[[ -e $f ]] && . "$f"
done

# End of file
# vim: set ts=2 sw=2 noet: