rc.subr revision 231667
1# $NetBSD: rc.subr,v 1.67 2006/10/07 11:25:15 elad Exp $ 2# $FreeBSD: head/etc/rc.subr 231667 2012-02-14 10:51:24Z dougb $ 3# 4# Copyright (c) 1997-2004 The NetBSD Foundation, Inc. 5# All rights reserved. 6# 7# This code is derived from software contributed to The NetBSD Foundation 8# by Luke Mewburn. 9# 10# Redistribution and use in source and binary forms, with or without 11# modification, are permitted provided that the following conditions 12# are met: 13# 1. Redistributions of source code must retain the above copyright 14# notice, this list of conditions and the following disclaimer. 15# 2. Redistributions in binary form must reproduce the above copyright 16# notice, this list of conditions and the following disclaimer in the 17# documentation and/or other materials provided with the distribution. 18# 19# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29# POSSIBILITY OF SUCH DAMAGE. 30# 31# rc.subr 32# functions used by various rc scripts 33# 34 35: ${RC_PID:=$$}; export RC_PID 36 37# 38# Operating System dependent/independent variables 39# 40 41if [ -z "${_rc_subr_loaded}" ]; then 42 43_rc_subr_loaded="YES" 44 45SYSCTL="/sbin/sysctl" 46SYSCTL_N="${SYSCTL} -n" 47SYSCTL_W="${SYSCTL}" 48ID="/usr/bin/id" 49IDCMD="if [ -x $ID ]; then $ID -un; fi" 50PS="/bin/ps -ww" 51JID=`$PS -p $$ -o jid=` 52 53# 54# functions 55# --------- 56 57# set_rcvar_obsolete oldvar [newvar] [msg] 58# Define obsolete variable. 59# Global variable $rcvars_obsolete is used. 60# 61set_rcvar_obsolete() 62{ 63 local _var 64 _var=$1 65 debug "rcvar_obsolete: \$$1(old) -> \$$2(new) is defined" 66 67 rcvars_obsolete="${rcvars_obsolete# } $1" 68 eval ${1}_newvar=\"$2\" 69 shift 2 70 eval ${_var}_obsolete_msg=\"$*\" 71} 72 73# 74# force_depend script [rcvar] 75# Force a service to start. Intended for use by services 76# to resolve dependency issues. 77# $1 - filename of script, in /etc/rc.d, to run 78# $2 - name of the script's rcvar (minus the _enable) 79# 80force_depend() 81{ 82 local _depend _dep_rcvar 83 84 _depend="$1" 85 _dep_rcvar="${2:-$1}_enable" 86 87 [ -n "$rc_fast" ] && ! checkyesno always_force_depends && 88 checkyesno $_dep_rcvar && return 0 89 90 /etc/rc.d/${_depend} forcestatus >/dev/null 2>&1 && return 0 91 92 info "${name} depends on ${_depend}, which will be forced to start." 93 if ! /etc/rc.d/${_depend} forcestart; then 94 warn "Unable to force ${_depend}. It may already be running." 95 return 1 96 fi 97} 98 99# 100# checkyesno var 101# Test $1 variable, and warn if not set to YES or NO. 102# Return 0 if it's "yes" (et al), nonzero otherwise. 103# 104checkyesno() 105{ 106 eval _value=\$${1} 107 debug "checkyesno: $1 is set to $_value." 108 case $_value in 109 110 # "yes", "true", "on", or "1" 111 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 112 return 0 113 ;; 114 115 # "no", "false", "off", or "0" 116 [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) 117 return 1 118 ;; 119 *) 120 warn "\$${1} is not set properly - see rc.conf(5)." 121 return 1 122 ;; 123 esac 124} 125 126# 127# reverse_list list 128# print the list in reverse order 129# 130reverse_list() 131{ 132 _revlist= 133 for _revfile; do 134 _revlist="$_revfile $_revlist" 135 done 136 echo $_revlist 137} 138 139# stop_boot always 140# If booting directly to multiuser or $always is enabled, 141# send SIGTERM to the parent (/etc/rc) to abort the boot. 142# Otherwise just exit. 143# 144stop_boot() 145{ 146 local always 147 148 case $1 in 149 # "yes", "true", "on", or "1" 150 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 151 always=true 152 ;; 153 *) 154 always=false 155 ;; 156 esac 157 if [ "$autoboot" = yes -o "$always" = true ]; then 158 echo "ERROR: ABORTING BOOT (sending SIGTERM to parent)!" 159 kill -TERM ${RC_PID} 160 fi 161 exit 1 162} 163 164# 165# mount_critical_filesystems type 166# Go through the list of critical filesystems as provided in 167# the rc.conf(5) variable $critical_filesystems_${type}, checking 168# each one to see if it is mounted, and if it is not, mounting it. 169# 170mount_critical_filesystems() 171{ 172 eval _fslist=\$critical_filesystems_${1} 173 for _fs in $_fslist; do 174 mount | ( 175 _ismounted=false 176 while read what _on on _type type; do 177 if [ $on = $_fs ]; then 178 _ismounted=true 179 fi 180 done 181 if $_ismounted; then 182 : 183 else 184 mount $_fs >/dev/null 2>&1 185 fi 186 ) 187 done 188} 189 190# 191# check_pidfile pidfile procname [interpreter] 192# Parses the first line of pidfile for a PID, and ensures 193# that the process is running and matches procname. 194# Prints the matching PID upon success, nothing otherwise. 195# interpreter is optional; see _find_processes() for details. 196# 197check_pidfile() 198{ 199 _pidfile=$1 200 _procname=$2 201 _interpreter=$3 202 if [ -z "$_pidfile" -o -z "$_procname" ]; then 203 err 3 'USAGE: check_pidfile pidfile procname [interpreter]' 204 fi 205 if [ ! -f $_pidfile ]; then 206 debug "pid file ($_pidfile): not readable." 207 return 208 fi 209 read _pid _junk < $_pidfile 210 if [ -z "$_pid" ]; then 211 debug "pid file ($_pidfile): no pid in file." 212 return 213 fi 214 _find_processes $_procname ${_interpreter:-.} '-p '"$_pid" 215} 216 217# 218# check_process procname [interpreter] 219# Ensures that a process (or processes) named procname is running. 220# Prints a list of matching PIDs. 221# interpreter is optional; see _find_processes() for details. 222# 223check_process() 224{ 225 _procname=$1 226 _interpreter=$2 227 if [ -z "$_procname" ]; then 228 err 3 'USAGE: check_process procname [interpreter]' 229 fi 230 _find_processes $_procname ${_interpreter:-.} '-ax' 231} 232 233# 234# _find_processes procname interpreter psargs 235# Search for procname in the output of ps generated by psargs. 236# Prints the PIDs of any matching processes, space separated. 237# 238# If interpreter == ".", check the following variations of procname 239# against the first word of each command: 240# procname 241# `basename procname` 242# `basename procname` + ":" 243# "(" + `basename procname` + ")" 244# "[" + `basename procname` + "]" 245# 246# If interpreter != ".", read the first line of procname, remove the 247# leading #!, normalise whitespace, append procname, and attempt to 248# match that against each command, either as is, or with extra words 249# at the end. As an alternative, to deal with interpreted daemons 250# using perl, the basename of the interpreter plus a colon is also 251# tried as the prefix to procname. 252# 253_find_processes() 254{ 255 if [ $# -ne 3 ]; then 256 err 3 'USAGE: _find_processes procname interpreter psargs' 257 fi 258 _procname=$1 259 _interpreter=$2 260 _psargs=$3 261 262 _pref= 263 if [ $_interpreter != "." ]; then # an interpreted script 264 _script=${_chroot}${_chroot:+"/"}$_procname 265 if [ -r $_script ]; then 266 read _interp < $_script # read interpreter name 267 case "$_interp" in 268 \#!*) 269 _interp=${_interp#\#!} # strip #! 270 set -- $_interp 271 case $1 in 272 */bin/env) 273 shift # drop env to get real name 274 ;; 275 esac 276 if [ $_interpreter != $1 ]; then 277 warn "\$command_interpreter $_interpreter != $1" 278 fi 279 ;; 280 *) 281 warn "no shebang line in $_script" 282 set -- $_interpreter 283 ;; 284 esac 285 else 286 warn "cannot read shebang line from $_script" 287 set -- $_interpreter 288 fi 289 _interp="$* $_procname" # cleanup spaces, add _procname 290 _interpbn=${1##*/} 291 _fp_args='_argv' 292 _fp_match='case "$_argv" in 293 ${_interp}|"${_interp} "*|"${_interpbn}: ${_procname}"*)' 294 else # a normal daemon 295 _procnamebn=${_procname##*/} 296 _fp_args='_arg0 _argv' 297 _fp_match='case "$_arg0" in 298 $_procname|$_procnamebn|${_procnamebn}:|"(${_procnamebn})"|"[${_procnamebn}]")' 299 fi 300 301 _proccheck="\ 302 $PS 2>/dev/null -o pid= -o jid= -o command= $_psargs"' | 303 while read _npid _jid '"$_fp_args"'; do 304 '"$_fp_match"' 305 if [ "$JID" -eq "$_jid" ]; 306 then echo -n "$_pref$_npid"; 307 _pref=" "; 308 fi 309 ;; 310 esac 311 done' 312 313# debug "in _find_processes: proccheck is ($_proccheck)." 314 eval $_proccheck 315} 316 317# 318# wait_for_pids pid [pid ...] 319# spins until none of the pids exist 320# 321wait_for_pids() 322{ 323 local _list _prefix _nlist _j 324 325 _list="$@" 326 if [ -z "$_list" ]; then 327 return 328 fi 329 _prefix= 330 while true; do 331 _nlist=""; 332 for _j in $_list; do 333 if kill -0 $_j 2>/dev/null; then 334 _nlist="${_nlist}${_nlist:+ }$_j" 335 [ -n "$_prefix" ] && sleep 1 336 fi 337 done 338 if [ -z "$_nlist" ]; then 339 break 340 fi 341 _list=$_nlist 342 echo -n ${_prefix:-"Waiting for PIDS: "}$_list 343 _prefix=", " 344 pwait $_list 2>/dev/null 345 done 346 if [ -n "$_prefix" ]; then 347 echo "." 348 fi 349} 350 351# 352# get_pidfile_from_conf string file 353# 354# Takes a string to search for in the specified file. 355# Ignores lines with traditional comment characters. 356# 357# Example: 358# 359# if get_pidfile_from_conf string file; then 360# pidfile="$_pidfile_from_conf" 361# else 362# pidfile='appropriate default' 363# fi 364# 365get_pidfile_from_conf() 366{ 367 if [ -z "$1" -o -z "$2" ]; then 368 err 3 "USAGE: get_pidfile_from_conf string file ($name)" 369 fi 370 371 local string file line 372 373 string="$1" ; file="$2" 374 375 if [ ! -s "$file" ]; then 376 err 3 "get_pidfile_from_conf: $file does not exist ($name)" 377 fi 378 379 while read line; do 380 case "$line" in 381 *[#\;]*${string}*) continue ;; 382 *${string}*) break ;; 383 esac 384 done < $file 385 386 if [ -n "$line" ]; then 387 line=${line#*/} 388 _pidfile_from_conf="/${line%%[\"\;]*}" 389 else 390 return 1 391 fi 392} 393 394# 395# check_startmsgs 396# If rc_quiet is set (usually as a result of using faststart at 397# boot time) check if rc_startmsgs is enabled. 398# 399check_startmsgs() 400{ 401 if [ -n "$rc_quiet" ]; then 402 checkyesno rc_startmsgs 403 else 404 return 0 405 fi 406} 407 408# 409# run_rc_command argument 410# Search for argument in the list of supported commands, which is: 411# "start stop restart rcvar status poll ${extra_commands}" 412# If there's a match, run ${argument}_cmd or the default method 413# (see below). 414# 415# If argument has a given prefix, then change the operation as follows: 416# Prefix Operation 417# ------ --------- 418# fast Skip the pid check, and set rc_fast=yes, rc_quiet=yes 419# force Set ${rcvar} to YES, and set rc_force=yes 420# one Set ${rcvar} to YES 421# quiet Don't output some diagnostics, and set rc_quiet=yes 422# 423# The following globals are used: 424# 425# Name Needed Purpose 426# ---- ------ ------- 427# name y Name of script. 428# 429# command n Full path to command. 430# Not needed if ${rc_arg}_cmd is set for 431# each keyword. 432# 433# command_args n Optional args/shell directives for command. 434# 435# command_interpreter n If not empty, command is interpreted, so 436# call check_{pidfile,process}() appropriately. 437# 438# desc n Description of script. 439# 440# extra_commands n List of extra commands supported. 441# 442# pidfile n If set, use check_pidfile $pidfile $command, 443# otherwise use check_process $command. 444# In either case, only check if $command is set. 445# 446# procname n Process name to check for instead of $command. 447# 448# rcvar n This is checked with checkyesno to determine 449# if the action should be run. 450# 451# ${name}_program n Full path to command. 452# Meant to be used in /etc/rc.conf to override 453# ${command}. 454# 455# ${name}_chroot n Directory to chroot to before running ${command} 456# Requires /usr to be mounted. 457# 458# ${name}_chdir n Directory to cd to before running ${command} 459# (if not using ${name}_chroot). 460# 461# ${name}_flags n Arguments to call ${command} with. 462# NOTE: $flags from the parent environment 463# can be used to override this. 464# 465# ${name}_nice n Nice level to run ${command} at. 466# 467# ${name}_user n User to run ${command} as, using su(1) if not 468# using ${name}_chroot. 469# Requires /usr to be mounted. 470# 471# ${name}_group n Group to run chrooted ${command} as. 472# Requires /usr to be mounted. 473# 474# ${name}_groups n Comma separated list of supplementary groups 475# to run the chrooted ${command} with. 476# Requires /usr to be mounted. 477# 478# ${rc_arg}_cmd n If set, use this as the method when invoked; 479# Otherwise, use default command (see below) 480# 481# ${rc_arg}_precmd n If set, run just before performing the 482# ${rc_arg}_cmd method in the default 483# operation (i.e, after checking for required 484# bits and process (non)existence). 485# If this completes with a non-zero exit code, 486# don't run ${rc_arg}_cmd. 487# 488# ${rc_arg}_postcmd n If set, run just after performing the 489# ${rc_arg}_cmd method, if that method 490# returned a zero exit code. 491# 492# required_dirs n If set, check for the existence of the given 493# directories before running a (re)start command. 494# 495# required_files n If set, check for the readability of the given 496# files before running a (re)start command. 497# 498# required_modules n If set, ensure the given kernel modules are 499# loaded before running a (re)start command. 500# The check and possible loads are actually 501# done after start_precmd so that the modules 502# aren't loaded in vain, should the precmd 503# return a non-zero status to indicate a error. 504# If a word in the list looks like "foo:bar", 505# "foo" is the KLD file name and "bar" is the 506# module name. If a word looks like "foo~bar", 507# "foo" is the KLD file name and "bar" is a 508# egrep(1) pattern matching the module name. 509# Otherwise the module name is assumed to be 510# the same as the KLD file name, which is most 511# common. See load_kld(). 512# 513# required_vars n If set, perform checkyesno on each of the 514# listed variables before running the default 515# (re)start command. 516# 517# Default behaviour for a given argument, if no override method is 518# provided: 519# 520# Argument Default behaviour 521# -------- ----------------- 522# start if !running && checkyesno ${rcvar} 523# ${command} 524# 525# stop if ${pidfile} 526# rc_pid=$(check_pidfile $pidfile $command) 527# else 528# rc_pid=$(check_process $command) 529# kill $sig_stop $rc_pid 530# wait_for_pids $rc_pid 531# ($sig_stop defaults to TERM.) 532# 533# reload Similar to stop, except use $sig_reload instead, 534# and doesn't wait_for_pids. 535# $sig_reload defaults to HUP. 536# Note that `reload' isn't provided by default, 537# it should be enabled via $extra_commands. 538# 539# restart Run `stop' then `start'. 540# 541# status Show if ${command} is running, etc. 542# 543# poll Wait for ${command} to exit. 544# 545# rcvar Display what rc.conf variable is used (if any). 546# 547# Variables available to methods, and after run_rc_command() has 548# completed: 549# 550# Variable Purpose 551# -------- ------- 552# rc_arg Argument to command, after fast/force/one processing 553# performed 554# 555# rc_flags Flags to start the default command with. 556# Defaults to ${name}_flags, unless overridden 557# by $flags from the environment. 558# This variable may be changed by the precmd method. 559# 560# rc_pid PID of command (if appropriate) 561# 562# rc_fast Not empty if "fast" was provided (q.v.) 563# 564# rc_force Not empty if "force" was provided (q.v.) 565# 566# rc_quiet Not empty if "quiet" was provided 567# 568# 569run_rc_command() 570{ 571 _return=0 572 rc_arg=$1 573 if [ -z "$name" ]; then 574 err 3 'run_rc_command: $name is not set.' 575 fi 576 577 # Don't repeat the first argument when passing additional command- 578 # line arguments to the command subroutines. 579 # 580 shift 1 581 rc_extra_args="$*" 582 583 _rc_prefix= 584 case "$rc_arg" in 585 fast*) # "fast" prefix; don't check pid 586 rc_arg=${rc_arg#fast} 587 rc_fast=yes 588 rc_quiet=yes 589 ;; 590 force*) # "force" prefix; always run 591 rc_force=yes 592 _rc_prefix=force 593 rc_arg=${rc_arg#${_rc_prefix}} 594 if [ -n "${rcvar}" ]; then 595 eval ${rcvar}=YES 596 fi 597 ;; 598 one*) # "one" prefix; set ${rcvar}=yes 599 _rc_prefix=one 600 rc_arg=${rc_arg#${_rc_prefix}} 601 if [ -n "${rcvar}" ]; then 602 eval ${rcvar}=YES 603 fi 604 ;; 605 quiet*) # "quiet" prefix; omit some messages 606 _rc_prefix=quiet 607 rc_arg=${rc_arg#${_rc_prefix}} 608 rc_quiet=yes 609 ;; 610 esac 611 612 eval _override_command=\$${name}_program 613 command=${_override_command:-$command} 614 615 _keywords="start stop restart rcvar $extra_commands" 616 rc_pid= 617 _pidcmd= 618 _procname=${procname:-${command}} 619 620 # setup pid check command 621 if [ -n "$_procname" ]; then 622 if [ -n "$pidfile" ]; then 623 _pidcmd='rc_pid=$(check_pidfile '"$pidfile $_procname $command_interpreter"')' 624 else 625 _pidcmd='rc_pid=$(check_process '"$_procname $command_interpreter"')' 626 fi 627 if [ -n "$_pidcmd" ]; then 628 _keywords="${_keywords} status poll" 629 fi 630 fi 631 632 if [ -z "$rc_arg" ]; then 633 rc_usage $_keywords 634 fi 635 636 if [ -n "$flags" ]; then # allow override from environment 637 rc_flags=$flags 638 else 639 eval rc_flags=\$${name}_flags 640 fi 641 eval _chdir=\$${name}_chdir _chroot=\$${name}_chroot \ 642 _nice=\$${name}_nice _user=\$${name}_user \ 643 _group=\$${name}_group _groups=\$${name}_groups 644 645 if [ -n "$_user" ]; then # unset $_user if running as that user 646 if [ "$_user" = "$(eval $IDCMD)" ]; then 647 unset _user 648 fi 649 fi 650 651 [ -z "$autoboot" ] && eval $_pidcmd # determine the pid if necessary 652 653 for _elem in $_keywords; do 654 if [ "$_elem" != "$rc_arg" ]; then 655 continue 656 fi 657 # if ${rcvar} is set, $1 is not "rcvar" 658 # and ${rc_pid} is not set, then run 659 # checkyesno ${rcvar} 660 # and return if that failed 661 # 662 if [ -n "${rcvar}" -a "$rc_arg" != "rcvar" -a "$rc_arg" != "stop" ] || 663 [ -n "${rcvar}" -a "$rc_arg" = "stop" -a -z "${rc_pid}" ]; then 664 if ! checkyesno ${rcvar}; then 665 if [ -n "${rc_quiet}" ]; then 666 return 0 667 fi 668 echo -n "Cannot '${rc_arg}' $name. Set ${rcvar} to " 669 echo -n "YES in /etc/rc.conf or use 'one${rc_arg}' " 670 echo "instead of '${rc_arg}'." 671 return 0 672 fi 673 fi 674 675 # if there's a custom ${XXX_cmd}, 676 # run that instead of the default 677 # 678 eval _cmd=\$${rc_arg}_cmd \ 679 _precmd=\$${rc_arg}_precmd \ 680 _postcmd=\$${rc_arg}_postcmd 681 682 if [ -n "$_cmd" ]; then 683 _run_rc_precmd || return 1 684 _run_rc_doit "$_cmd $rc_extra_args" || return 1 685 _run_rc_postcmd 686 return $_return 687 fi 688 689 case "$rc_arg" in # default operations... 690 691 status) 692 _run_rc_precmd || return 1 693 if [ -n "$rc_pid" ]; then 694 echo "${name} is running as pid $rc_pid." 695 else 696 echo "${name} is not running." 697 return 1 698 fi 699 _run_rc_postcmd 700 ;; 701 702 start) 703 if [ -z "$rc_fast" -a -n "$rc_pid" ]; then 704 echo 1>&2 "${name} already running? (pid=$rc_pid)." 705 return 1 706 fi 707 708 if [ ! -x ${_chroot}${_chroot:+"/"}${command} ]; then 709 warn "run_rc_command: cannot run $command" 710 return 1 711 fi 712 713 if ! _run_rc_precmd; then 714 warn "failed precmd routine for ${name}" 715 return 1 716 fi 717 718 # setup the full command to run 719 # 720 check_startmsgs && echo "Starting ${name}." 721 if [ -n "$_chroot" ]; then 722 _doit="\ 723${_nice:+nice -n $_nice }\ 724chroot ${_user:+-u $_user }${_group:+-g $_group }${_groups:+-G $_groups }\ 725$_chroot $command $rc_flags $command_args" 726 else 727 _doit="\ 728${_chdir:+cd $_chdir && }\ 729$command $rc_flags $command_args" 730 if [ -n "$_user" ]; then 731 _doit="su -m $_user -c 'sh -c \"$_doit\"'" 732 fi 733 if [ -n "$_nice" ]; then 734 if [ -z "$_user" ]; then 735 _doit="sh -c \"$_doit\"" 736 fi 737 _doit="nice -n $_nice $_doit" 738 fi 739 fi 740 741 # run the full command 742 # 743 if ! _run_rc_doit "$_doit"; then 744 warn "failed to start ${name}" 745 return 1 746 fi 747 748 # finally, run postcmd 749 # 750 _run_rc_postcmd 751 ;; 752 753 stop) 754 if [ -z "$rc_pid" ]; then 755 [ -n "$rc_fast" ] && return 0 756 _run_rc_notrunning 757 return 1 758 fi 759 760 _run_rc_precmd || return 1 761 762 # send the signal to stop 763 # 764 echo "Stopping ${name}." 765 _doit=$(_run_rc_killcmd "${sig_stop:-TERM}") 766 _run_rc_doit "$_doit" || return 1 767 768 # wait for the command to exit, 769 # and run postcmd. 770 wait_for_pids $rc_pid 771 772 _run_rc_postcmd 773 ;; 774 775 reload) 776 if [ -z "$rc_pid" ]; then 777 _run_rc_notrunning 778 return 1 779 fi 780 781 _run_rc_precmd || return 1 782 783 _doit=$(_run_rc_killcmd "${sig_reload:-HUP}") 784 _run_rc_doit "$_doit" || return 1 785 786 _run_rc_postcmd 787 ;; 788 789 restart) 790 # prevent restart being called more 791 # than once by any given script 792 # 793 if ${_rc_restart_done:-false}; then 794 return 0 795 fi 796 _rc_restart_done=true 797 798 _run_rc_precmd || return 1 799 800 # run those in a subshell to keep global variables 801 ( run_rc_command ${_rc_prefix}stop $rc_extra_args ) 802 ( run_rc_command ${_rc_prefix}start $rc_extra_args ) 803 _return=$? 804 [ $_return -ne 0 ] && [ -z "$rc_force" ] && return 1 805 806 _run_rc_postcmd 807 ;; 808 809 poll) 810 _run_rc_precmd || return 1 811 if [ -n "$rc_pid" ]; then 812 wait_for_pids $rc_pid 813 fi 814 _run_rc_postcmd 815 ;; 816 817 rcvar) 818 echo -n "# $name" 819 if [ -n "$desc" ]; then 820 echo " : $desc" 821 else 822 echo "" 823 fi 824 echo "#" 825 # Get unique vars in $rcvar 826 for _v in $rcvar; do 827 case $v in 828 $_v\ *|\ *$_v|*\ $_v\ *) ;; 829 *) v="${v# } $_v" ;; 830 esac 831 done 832 833 # Display variables. 834 for _v in $v; do 835 if [ -z "$_v" ]; then 836 continue 837 fi 838 839 eval _desc=\$${_v}_desc 840 eval _defval=\$${_v}_defval 841 _h="-" 842 843 eval echo \"$_v=\\\"\$$_v\\\"\" 844 # decode multiple lines of _desc 845 while [ -n "$_desc" ]; do 846 case $_desc in 847 *^^*) 848 echo "# $_h ${_desc%%^^*}" 849 _desc=${_desc#*^^} 850 _h=" " 851 ;; 852 *) 853 echo "# $_h ${_desc}" 854 break 855 ;; 856 esac 857 done 858 echo "# (default: \"$_defval\")" 859 done 860 echo "" 861 ;; 862 863 *) 864 rc_usage $_keywords 865 ;; 866 867 esac 868 return $_return 869 done 870 871 echo 1>&2 "$0: unknown directive '$rc_arg'." 872 rc_usage $_keywords 873 # not reached 874} 875 876# 877# Helper functions for run_rc_command: common code. 878# They use such global variables besides the exported rc_* ones: 879# 880# name R/W 881# ------------------ 882# _precmd R 883# _postcmd R 884# _return W 885# 886_run_rc_precmd() 887{ 888 check_required_before "$rc_arg" || return 1 889 890 if [ -n "$_precmd" ]; then 891 debug "run_rc_command: ${rc_arg}_precmd: $_precmd $rc_extra_args" 892 eval "$_precmd $rc_extra_args" 893 _return=$? 894 895 # If precmd failed and force isn't set, request exit. 896 if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then 897 return 1 898 fi 899 fi 900 901 check_required_after "$rc_arg" || return 1 902 903 return 0 904} 905 906_run_rc_postcmd() 907{ 908 if [ -n "$_postcmd" ]; then 909 debug "run_rc_command: ${rc_arg}_postcmd: $_postcmd $rc_extra_args" 910 eval "$_postcmd $rc_extra_args" 911 _return=$? 912 fi 913 return 0 914} 915 916_run_rc_doit() 917{ 918 debug "run_rc_command: doit: $*" 919 eval "$@" 920 _return=$? 921 922 # If command failed and force isn't set, request exit. 923 if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then 924 return 1 925 fi 926 927 return 0 928} 929 930_run_rc_notrunning() 931{ 932 local _pidmsg 933 934 if [ -n "$pidfile" ]; then 935 _pidmsg=" (check $pidfile)." 936 else 937 _pidmsg= 938 fi 939 echo 1>&2 "${name} not running?${_pidmsg}" 940} 941 942_run_rc_killcmd() 943{ 944 local _cmd 945 946 _cmd="kill -$1 $rc_pid" 947 if [ -n "$_user" ]; then 948 _cmd="su -m ${_user} -c 'sh -c \"${_cmd}\"'" 949 fi 950 echo "$_cmd" 951} 952 953# 954# run_rc_script file arg 955# Start the script `file' with `arg', and correctly handle the 956# return value from the script. 957# If `file' ends with `.sh', it's sourced into the current environment 958# when $rc_fast_and_loose is set, otherwise it is run as a child process. 959# If `file' appears to be a backup or scratch file, ignore it. 960# Otherwise if it is executable run as a child process. 961# 962run_rc_script() 963{ 964 _file=$1 965 _arg=$2 966 if [ -z "$_file" -o -z "$_arg" ]; then 967 err 3 'USAGE: run_rc_script file arg' 968 fi 969 970 unset name command command_args command_interpreter \ 971 extra_commands pidfile procname \ 972 rcvar rcvars_obsolete required_dirs required_files \ 973 required_vars 974 eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd 975 976 case "$_file" in 977 /etc/rc.d/*.sh) # no longer allowed in the base 978 warn "Ignoring old-style startup script $_file" 979 ;; 980 *[~#]|*.OLD|*.bak|*.orig|*,v) # scratch file; skip 981 warn "Ignoring scratch file $_file" 982 ;; 983 *) # run in subshell 984 if [ -x $_file ]; then 985 if [ -n "$rc_fast_and_loose" ]; then 986 set $_arg; . $_file 987 else 988 ( trap "echo Script $_file interrupted; kill -QUIT $$" 3 989 trap "echo Script $_file interrupted; exit 1" 2 990 trap "echo Script $_file running" 29 991 set $_arg; . $_file ) 992 fi 993 fi 994 ;; 995 esac 996} 997 998# 999# load_rc_config name 1000# Source in the configuration file for a given name. 1001# 1002load_rc_config() 1003{ 1004 local _name _rcvar_val _var _defval _v _msg _new 1005 _name=$1 1006 if [ -z "$_name" ]; then 1007 err 3 'USAGE: load_rc_config name' 1008 fi 1009 1010 if ${_rc_conf_loaded:-false}; then 1011 : 1012 else 1013 if [ -r /etc/defaults/rc.conf ]; then 1014 debug "Sourcing /etc/defaults/rc.conf" 1015 . /etc/defaults/rc.conf 1016 source_rc_confs 1017 elif [ -r /etc/rc.conf ]; then 1018 debug "Sourcing /etc/rc.conf (/etc/defaults/rc.conf doesn't exist)." 1019 . /etc/rc.conf 1020 fi 1021 _rc_conf_loaded=true 1022 fi 1023 if [ -f /etc/rc.conf.d/"$_name" ]; then 1024 debug "Sourcing /etc/rc.conf.d/${_name}" 1025 . /etc/rc.conf.d/"$_name" 1026 fi 1027 1028 # Set defaults if defined. 1029 for _var in $rcvar; do 1030 eval _defval=\$${_var}_defval 1031 if [ -n "$_defval" ]; then 1032 eval : \${$_var:=\$${_var}_defval} 1033 fi 1034 done 1035 1036 # check obsolete rc.conf variables 1037 for _var in $rcvars_obsolete; do 1038 eval _v=\$$_var 1039 eval _msg=\$${_var}_obsolete_msg 1040 eval _new=\$${_var}_newvar 1041 case $_v in 1042 "") 1043 ;; 1044 *) 1045 if [ -z "$_new" ]; then 1046 _msg="Ignored." 1047 else 1048 eval $_new=\"\$$_var\" 1049 if [ -z "$_msg" ]; then 1050 _msg="Use \$$_new instead." 1051 fi 1052 fi 1053 warn "\$$_var is obsolete. $_msg" 1054 ;; 1055 esac 1056 done 1057} 1058 1059# 1060# load_rc_config_var name var 1061# Read the rc.conf(5) var for name and set in the 1062# current shell, using load_rc_config in a subshell to prevent 1063# unwanted side effects from other variable assignments. 1064# 1065load_rc_config_var() 1066{ 1067 if [ $# -ne 2 ]; then 1068 err 3 'USAGE: load_rc_config_var name var' 1069 fi 1070 eval $(eval '( 1071 load_rc_config '$1' >/dev/null; 1072 if [ -n "${'$2'}" -o "${'$2'-UNSET}" != "UNSET" ]; then 1073 echo '$2'=\'\''${'$2'}\'\''; 1074 fi 1075 )' ) 1076} 1077 1078# 1079# rc_usage commands 1080# Print a usage string for $0, with `commands' being a list of 1081# valid commands. 1082# 1083rc_usage() 1084{ 1085 echo -n 1>&2 "Usage: $0 [fast|force|one|quiet](" 1086 1087 _sep= 1088 for _elem; do 1089 echo -n 1>&2 "$_sep$_elem" 1090 _sep="|" 1091 done 1092 echo 1>&2 ")" 1093 exit 1 1094} 1095 1096# 1097# err exitval message 1098# Display message to stderr and log to the syslog, and exit with exitval. 1099# 1100err() 1101{ 1102 exitval=$1 1103 shift 1104 1105 if [ -x /usr/bin/logger ]; then 1106 logger "$0: ERROR: $*" 1107 fi 1108 echo 1>&2 "$0: ERROR: $*" 1109 exit $exitval 1110} 1111 1112# 1113# warn message 1114# Display message to stderr and log to the syslog. 1115# 1116warn() 1117{ 1118 if [ -x /usr/bin/logger ]; then 1119 logger "$0: WARNING: $*" 1120 fi 1121 echo 1>&2 "$0: WARNING: $*" 1122} 1123 1124# 1125# info message 1126# Display informational message to stdout and log to syslog. 1127# 1128info() 1129{ 1130 case ${rc_info} in 1131 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 1132 if [ -x /usr/bin/logger ]; then 1133 logger "$0: INFO: $*" 1134 fi 1135 echo "$0: INFO: $*" 1136 ;; 1137 esac 1138} 1139 1140# 1141# debug message 1142# If debugging is enabled in rc.conf output message to stderr. 1143# BEWARE that you don't call any subroutine that itself calls this 1144# function. 1145# 1146debug() 1147{ 1148 case ${rc_debug} in 1149 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 1150 if [ -x /usr/bin/logger ]; then 1151 logger "$0: DEBUG: $*" 1152 fi 1153 echo 1>&2 "$0: DEBUG: $*" 1154 ;; 1155 esac 1156} 1157 1158# 1159# backup_file action file cur backup 1160# Make a backup copy of `file' into `cur', and save the previous 1161# version of `cur' as `backup' or use rcs for archiving. 1162# 1163# This routine checks the value of the backup_uses_rcs variable, 1164# which can be either YES or NO. 1165# 1166# The `action' keyword can be one of the following: 1167# 1168# add `file' is now being backed up (and is possibly 1169# being reentered into the backups system). `cur' 1170# is created and RCS files, if necessary, are 1171# created as well. 1172# 1173# update `file' has changed and needs to be backed up. 1174# If `cur' exists, it is copied to to `back' or 1175# checked into RCS (if the repository file is old), 1176# and then `file' is copied to `cur'. Another RCS 1177# check in done here if RCS is being used. 1178# 1179# remove `file' is no longer being tracked by the backups 1180# system. If RCS is not being used, `cur' is moved 1181# to `back', otherwise an empty file is checked in, 1182# and then `cur' is removed. 1183# 1184# 1185backup_file() 1186{ 1187 _action=$1 1188 _file=$2 1189 _cur=$3 1190 _back=$4 1191 1192 if checkyesno backup_uses_rcs; then 1193 _msg0="backup archive" 1194 _msg1="update" 1195 1196 # ensure that history file is not locked 1197 if [ -f $_cur,v ]; then 1198 rcs -q -u -U -M $_cur 1199 fi 1200 1201 # ensure after switching to rcs that the 1202 # current backup is not lost 1203 if [ -f $_cur ]; then 1204 # no archive, or current newer than archive 1205 if [ ! -f $_cur,v -o $_cur -nt $_cur,v ]; then 1206 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1207 rcs -q -kb -U $_cur 1208 co -q -f -u $_cur 1209 fi 1210 fi 1211 1212 case $_action in 1213 add|update) 1214 cp -p $_file $_cur 1215 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1216 rcs -q -kb -U $_cur 1217 co -q -f -u $_cur 1218 chown root:wheel $_cur $_cur,v 1219 ;; 1220 remove) 1221 cp /dev/null $_cur 1222 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1223 rcs -q -kb -U $_cur 1224 chown root:wheel $_cur $_cur,v 1225 rm $_cur 1226 ;; 1227 esac 1228 else 1229 case $_action in 1230 add|update) 1231 if [ -f $_cur ]; then 1232 cp -p $_cur $_back 1233 fi 1234 cp -p $_file $_cur 1235 chown root:wheel $_cur 1236 ;; 1237 remove) 1238 mv -f $_cur $_back 1239 ;; 1240 esac 1241 fi 1242} 1243 1244# make_symlink src link 1245# Make a symbolic link 'link' to src from basedir. If the 1246# directory in which link is to be created does not exist 1247# a warning will be displayed and an error will be returned. 1248# Returns 0 on success, 1 otherwise. 1249# 1250make_symlink() 1251{ 1252 local src link linkdir _me 1253 src="$1" 1254 link="$2" 1255 linkdir="`dirname $link`" 1256 _me="make_symlink()" 1257 1258 if [ -z "$src" -o -z "$link" ]; then 1259 warn "$_me: requires two arguments." 1260 return 1 1261 fi 1262 if [ ! -d "$linkdir" ]; then 1263 warn "$_me: the directory $linkdir does not exist." 1264 return 1 1265 fi 1266 if ! ln -sf $src $link; then 1267 warn "$_me: unable to make a symbolic link from $link to $src" 1268 return 1 1269 fi 1270 return 0 1271} 1272 1273# devfs_rulesets_from_file file 1274# Reads a set of devfs commands from file, and creates 1275# the specified rulesets with their rules. Returns non-zero 1276# if there was an error. 1277# 1278devfs_rulesets_from_file() 1279{ 1280 local file _err _me 1281 file="$1" 1282 _me="devfs_rulesets_from_file" 1283 _err=0 1284 1285 if [ -z "$file" ]; then 1286 warn "$_me: you must specify a file" 1287 return 1 1288 fi 1289 if [ ! -e "$file" ]; then 1290 debug "$_me: no such file ($file)" 1291 return 0 1292 fi 1293 debug "reading rulesets from file ($file)" 1294 { while read line 1295 do 1296 case $line in 1297 \#*) 1298 continue 1299 ;; 1300 \[*\]*) 1301 rulenum=`expr "$line" : "\[.*=\([0-9]*\)\]"` 1302 if [ -z "$rulenum" ]; then 1303 warn "$_me: cannot extract rule number ($line)" 1304 _err=1 1305 break 1306 fi 1307 rulename=`expr "$line" : "\[\(.*\)=[0-9]*\]"` 1308 if [ -z "$rulename" ]; then 1309 warn "$_me: cannot extract rule name ($line)" 1310 _err=1 1311 break; 1312 fi 1313 eval $rulename=\$rulenum 1314 debug "found ruleset: $rulename=$rulenum" 1315 if ! /sbin/devfs rule -s $rulenum delset; then 1316 _err=1 1317 break 1318 fi 1319 ;; 1320 *) 1321 rulecmd="${line%%"\#*"}" 1322 # evaluate the command incase it includes 1323 # other rules 1324 if [ -n "$rulecmd" ]; then 1325 debug "adding rule ($rulecmd)" 1326 if ! eval /sbin/devfs rule -s $rulenum $rulecmd 1327 then 1328 _err=1 1329 break 1330 fi 1331 fi 1332 ;; 1333 esac 1334 if [ $_err -ne 0 ]; then 1335 debug "error in $_me" 1336 break 1337 fi 1338 done } < $file 1339 return $_err 1340} 1341 1342# devfs_init_rulesets 1343# Initializes rulesets from configuration files. Returns 1344# non-zero if there was an error. 1345# 1346devfs_init_rulesets() 1347{ 1348 local file _me 1349 _me="devfs_init_rulesets" 1350 1351 # Go through this only once 1352 if [ -n "$devfs_rulesets_init" ]; then 1353 debug "$_me: devfs rulesets already initialized" 1354 return 1355 fi 1356 for file in $devfs_rulesets; do 1357 if ! devfs_rulesets_from_file $file; then 1358 warn "$_me: could not read rules from $file" 1359 return 1 1360 fi 1361 done 1362 devfs_rulesets_init=1 1363 debug "$_me: devfs rulesets initialized" 1364 return 0 1365} 1366 1367# devfs_set_ruleset ruleset [dir] 1368# Sets the default ruleset of dir to ruleset. The ruleset argument 1369# must be a ruleset name as specified in devfs.rules(5) file. 1370# Returns non-zero if it could not set it successfully. 1371# 1372devfs_set_ruleset() 1373{ 1374 local devdir rs _me 1375 [ -n "$1" ] && eval rs=\$$1 || rs= 1376 [ -n "$2" ] && devdir="-m "$2"" || devdir= 1377 _me="devfs_set_ruleset" 1378 1379 if [ -z "$rs" ]; then 1380 warn "$_me: you must specify a ruleset number" 1381 return 1 1382 fi 1383 debug "$_me: setting ruleset ($rs) on mount-point (${devdir#-m })" 1384 if ! /sbin/devfs $devdir ruleset $rs; then 1385 warn "$_me: unable to set ruleset $rs to ${devdir#-m }" 1386 return 1 1387 fi 1388 return 0 1389} 1390 1391# devfs_apply_ruleset ruleset [dir] 1392# Apply ruleset number $ruleset to the devfs mountpoint $dir. 1393# The ruleset argument must be a ruleset name as specified 1394# in a devfs.rules(5) file. Returns 0 on success or non-zero 1395# if it could not apply the ruleset. 1396# 1397devfs_apply_ruleset() 1398{ 1399 local devdir rs _me 1400 [ -n "$1" ] && eval rs=\$$1 || rs= 1401 [ -n "$2" ] && devdir="-m "$2"" || devdir= 1402 _me="devfs_apply_ruleset" 1403 1404 if [ -z "$rs" ]; then 1405 warn "$_me: you must specify a ruleset" 1406 return 1 1407 fi 1408 debug "$_me: applying ruleset ($rs) to mount-point (${devdir#-m })" 1409 if ! /sbin/devfs $devdir rule -s $rs applyset; then 1410 warn "$_me: unable to apply ruleset $rs to ${devdir#-m }" 1411 return 1 1412 fi 1413 return 0 1414} 1415 1416# devfs_domount dir [ruleset] 1417# Mount devfs on dir. If ruleset is specified it is set 1418# on the mount-point. It must also be a ruleset name as specified 1419# in a devfs.rules(5) file. Returns 0 on success. 1420# 1421devfs_domount() 1422{ 1423 local devdir rs _me 1424 devdir="$1" 1425 [ -n "$2" ] && rs=$2 || rs= 1426 _me="devfs_domount()" 1427 1428 if [ -z "$devdir" ]; then 1429 warn "$_me: you must specify a mount-point" 1430 return 1 1431 fi 1432 debug "$_me: mount-point is ($devdir), ruleset is ($rs)" 1433 if ! mount -t devfs dev "$devdir"; then 1434 warn "$_me: Unable to mount devfs on $devdir" 1435 return 1 1436 fi 1437 if [ -n "$rs" ]; then 1438 devfs_init_rulesets 1439 devfs_set_ruleset $rs $devdir 1440 devfs -m $devdir rule applyset 1441 fi 1442 return 0 1443} 1444 1445# devfs_mount_jail dir [ruleset] 1446# Mounts a devfs file system appropriate for jails 1447# on the directory dir. If ruleset is specified, the ruleset 1448# it names will be used instead. If present, ruleset must 1449# be the name of a ruleset as defined in a devfs.rules(5) file. 1450# This function returns non-zero if an error occurs. 1451# 1452devfs_mount_jail() 1453{ 1454 local jdev rs _me 1455 jdev="$1" 1456 [ -n "$2" ] && rs=$2 || rs="devfsrules_jail" 1457 _me="devfs_mount_jail" 1458 1459 devfs_init_rulesets 1460 if ! devfs_domount "$jdev" $rs; then 1461 warn "$_me: devfs was not mounted on $jdev" 1462 return 1 1463 fi 1464 return 0 1465} 1466 1467# Provide a function for normalizing the mounting of memory 1468# filesystems. This should allow the rest of the code here to remain 1469# as close as possible between 5-current and 4-stable. 1470# $1 = size 1471# $2 = mount point 1472# $3 = (optional) extra mdmfs flags 1473mount_md() 1474{ 1475 if [ -n "$3" ]; then 1476 flags="$3" 1477 fi 1478 /sbin/mdmfs $flags -s $1 md $2 1479} 1480 1481# Code common to scripts that need to load a kernel module 1482# if it isn't in the kernel yet. Syntax: 1483# load_kld [-e regex] [-m module] file 1484# where -e or -m chooses the way to check if the module 1485# is already loaded: 1486# regex is egrep'd in the output from `kldstat -v', 1487# module is passed to `kldstat -m'. 1488# The default way is as though `-m file' were specified. 1489load_kld() 1490{ 1491 local _loaded _mod _opt _re 1492 1493 while getopts "e:m:" _opt; do 1494 case "$_opt" in 1495 e) _re="$OPTARG" ;; 1496 m) _mod="$OPTARG" ;; 1497 *) err 3 'USAGE: load_kld [-e regex] [-m module] file' ;; 1498 esac 1499 done 1500 shift $(($OPTIND - 1)) 1501 if [ $# -ne 1 ]; then 1502 err 3 'USAGE: load_kld [-e regex] [-m module] file' 1503 fi 1504 _mod=${_mod:-$1} 1505 _loaded=false 1506 if [ -n "$_re" ]; then 1507 if kldstat -v | egrep -q -e "$_re"; then 1508 _loaded=true 1509 fi 1510 else 1511 if kldstat -q -m "$_mod"; then 1512 _loaded=true 1513 fi 1514 fi 1515 if ! $_loaded; then 1516 if ! kldload "$1"; then 1517 warn "Unable to load kernel module $1" 1518 return 1 1519 else 1520 info "$1 kernel module loaded." 1521 fi 1522 else 1523 debug "load_kld: $1 kernel module already loaded." 1524 fi 1525 return 0 1526} 1527 1528# ltr str src dst 1529# Change every $src in $str to $dst. 1530# Useful when /usr is not yet mounted and we cannot use tr(1), sed(1) nor 1531# awk(1). 1532ltr() 1533{ 1534 local _str _src _dst _out _com 1535 _str=$1 1536 _src=$2 1537 _dst=$3 1538 _out="" 1539 1540 IFS=${_src} 1541 for _com in ${_str}; do 1542 if [ -z "${_out}" ]; then 1543 _out="${_com}" 1544 else 1545 _out="${_out}${_dst}${_com}" 1546 fi 1547 done 1548 echo "${_out}" 1549} 1550 1551# Creates a list of providers for GELI encryption. 1552geli_make_list() 1553{ 1554 local devices devices2 1555 local provider mountpoint type options rest 1556 1557 # Create list of GELI providers from fstab. 1558 while read provider mountpoint type options rest ; do 1559 case ":${options}" in 1560 :*noauto*) 1561 noauto=yes 1562 ;; 1563 *) 1564 noauto=no 1565 ;; 1566 esac 1567 1568 case ":${provider}" in 1569 :#*) 1570 continue 1571 ;; 1572 *.eli) 1573 # Skip swap devices. 1574 if [ "${type}" = "swap" -o "${options}" = "sw" -o "${noauto}" = "yes" ]; then 1575 continue 1576 fi 1577 devices="${devices} ${provider}" 1578 ;; 1579 esac 1580 done < /etc/fstab 1581 1582 # Append providers from geli_devices. 1583 devices="${devices} ${geli_devices}" 1584 1585 for provider in ${devices}; do 1586 provider=${provider%.eli} 1587 provider=${provider#/dev/} 1588 devices2="${devices2} ${provider}" 1589 done 1590 1591 echo ${devices2} 1592} 1593 1594# Find scripts in local_startup directories that use the old syntax 1595# 1596find_local_scripts_old () { 1597 zlist='' 1598 slist='' 1599 for dir in ${local_startup}; do 1600 if [ -d "${dir}" ]; then 1601 for file in ${dir}/[0-9]*.sh; do 1602 grep '^# PROVIDE:' $file >/dev/null 2>&1 && 1603 continue 1604 zlist="$zlist $file" 1605 done 1606 for file in ${dir}/[!0-9]*.sh; do 1607 grep '^# PROVIDE:' $file >/dev/null 2>&1 && 1608 continue 1609 slist="$slist $file" 1610 done 1611 fi 1612 done 1613} 1614 1615find_local_scripts_new () { 1616 local_rc='' 1617 for dir in ${local_startup}; do 1618 if [ -d "${dir}" ]; then 1619 for file in `grep -l '^# PROVIDE:' ${dir}/* 2>/dev/null`; do 1620 case "$file" in 1621 *.sample) ;; 1622 *) if [ -x "$file" ]; then 1623 local_rc="${local_rc} ${file}" 1624 fi 1625 ;; 1626 esac 1627 done 1628 fi 1629 done 1630} 1631 1632# check_required_{before|after} command 1633# Check for things required by the command before and after its precmd, 1634# respectively. The two separate functions are needed because some 1635# conditions should prevent precmd from being run while other things 1636# depend on precmd having already been run. 1637# 1638check_required_before() 1639{ 1640 local _f 1641 1642 case "$1" in 1643 start) 1644 for _f in $required_vars; do 1645 if ! checkyesno $_f; then 1646 warn "\$${_f} is not enabled." 1647 if [ -z "$rc_force" ]; then 1648 return 1 1649 fi 1650 fi 1651 done 1652 1653 for _f in $required_dirs; do 1654 if [ ! -d "${_f}/." ]; then 1655 warn "${_f} is not a directory." 1656 if [ -z "$rc_force" ]; then 1657 return 1 1658 fi 1659 fi 1660 done 1661 1662 for _f in $required_files; do 1663 if [ ! -r "${_f}" ]; then 1664 warn "${_f} is not readable." 1665 if [ -z "$rc_force" ]; then 1666 return 1 1667 fi 1668 fi 1669 done 1670 ;; 1671 esac 1672 1673 return 0 1674} 1675 1676check_required_after() 1677{ 1678 local _f _args 1679 1680 case "$1" in 1681 start) 1682 for _f in $required_modules; do 1683 case "${_f}" in 1684 *~*) _args="-e ${_f#*~} ${_f%%~*}" ;; 1685 *:*) _args="-m ${_f#*:} ${_f%%:*}" ;; 1686 *) _args="${_f}" ;; 1687 esac 1688 if ! load_kld ${_args}; then 1689 if [ -z "$rc_force" ]; then 1690 return 1 1691 fi 1692 fi 1693 done 1694 ;; 1695 esac 1696 1697 return 0 1698} 1699 1700# check_kern_features mib 1701# Return existence of kern.features.* sysctl MIB as true or 1702# false. The result will be cached in $_rc_cache_kern_features_ 1703# namespace. "0" means the kern.features.X exists. 1704 1705check_kern_features() 1706{ 1707 local _v 1708 1709 [ -n "$1" ] || return 1; 1710 eval _v=\$_rc_cache_kern_features_$1 1711 [ -n "$_v" ] && return "$_v"; 1712 1713 if ${SYSCTL_N} kern.features.$1 > /dev/null 2>&1; then 1714 eval _rc_cache_kern_features_$1=0 1715 return 0 1716 else 1717 eval _rc_cache_kern_features_$1=1 1718 return 1 1719 fi 1720} 1721 1722# _echoonce var msg mode 1723# mode=0: Echo $msg if ${$var} is empty. 1724# After doing echo, a string is set to ${$var}. 1725# 1726# mode=1: Echo $msg if ${$var} is a string with non-zero length. 1727# 1728_echoonce() 1729{ 1730 local _var _msg _mode 1731 eval _var=\$$1 1732 _msg=$2 1733 _mode=$3 1734 1735 case $_mode in 1736 1) [ -n "$_var" ] && echo "$_msg" ;; 1737 *) [ -z "$_var" ] && echo -n "$_msg" && eval "$1=finished" ;; 1738 esac 1739} 1740 1741fi # [ -z "${_rc_subr_loaded}" ] 1742 1743_rc_subr_loaded=: 1744