rc.subr revision 217090
1# $NetBSD: rc.subr,v 1.67 2006/10/07 11:25:15 elad Exp $ 2# $FreeBSD: head/etc/rc.subr 217090 2011-01-07 10:59:22Z jh $ 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: ${rcvar_manpage:='rc.conf(5)'} 36: ${RC_PID:=$$}; export RC_PID 37 38# 39# Operating System dependent/independent variables 40# 41 42if [ -z "${_rc_subr_loaded}" ]; then 43 44_rc_subr_loaded="YES" 45 46SYSCTL="/sbin/sysctl" 47SYSCTL_N="${SYSCTL} -n" 48SYSCTL_W="${SYSCTL}" 49ID="/usr/bin/id" 50IDCMD="if [ -x $ID ]; then $ID -un; fi" 51PS="/bin/ps -ww" 52JID=`$PS -p $$ -o jid=` 53 54# 55# functions 56# --------- 57 58# set_rcvar [var] [defval] [desc] 59# 60# Echo or define a rc.conf(5) variable name. Global variable 61# $rcvars is used. 62# 63# If no argument is specified, echo "${name}_enable". 64# 65# If only a var is specified, echo "${var}_enable". 66# 67# If var and defval are specified, the ${var} is defined as 68# rc.conf(5) variable and the default value is ${defvar}. An 69# optional argument $desc can also be specified to add a 70# description for that. 71# 72set_rcvar() 73{ 74 case $# in 75 0) 76 echo ${name}_enable 77 ;; 78 1) 79 echo ${1}_enable 80 ;; 81 *) 82 debug "rcvar_define: \$$1=$2 is added" \ 83 " as a rc.conf(5) variable." 84 85 local _var 86 _var=$1 87 rcvars="${rcvars# } $_var" 88 eval ${_var}_defval=\"$2\" 89 shift 2 90 # encode multiple lines of _desc 91 for l in "$@"; do 92 eval ${_var}_desc=\"\${${_var}_desc#^^}^^$l\" 93 done 94 eval ${_var}_desc=\"\${${_var}_desc#^^}\" 95 ;; 96 esac 97} 98 99# set_rcvar_obsolete oldvar [newvar] [msg] 100# Define obsolete variable. 101# Global variable $rcvars_obsolete is used. 102# 103set_rcvar_obsolete() 104{ 105 local _var 106 _var=$1 107 debug "rcvar_obsolete: \$$1(old) -> \$$2(new) is defined" 108 109 rcvars_obsolete="${rcvars_obsolete# } $1" 110 eval ${1}_newvar=\"$2\" 111 shift 2 112 eval ${_var}_obsolete_msg=\"$*\" 113} 114 115# 116# force_depend script 117# Force a service to start. Intended for use by services 118# to resolve dependency issues. It is assumed the caller 119# has check to make sure this call is necessary 120# $1 - filename of script, in /etc/rc.d, to run 121# 122force_depend() 123{ 124 _depend="$1" 125 126 info "${name} depends on ${_depend}, which will be forced to start." 127 if ! /etc/rc.d/${_depend} forcestart; then 128 warn "Unable to force ${_depend}. It may already be running." 129 return 1 130 fi 131 return 0 132} 133 134# 135# checkyesno var 136# Test $1 variable, and warn if not set to YES or NO. 137# Return 0 if it's "yes" (et al), nonzero otherwise. 138# 139checkyesno() 140{ 141 eval _value=\$${1} 142 debug "checkyesno: $1 is set to $_value." 143 case $_value in 144 145 # "yes", "true", "on", or "1" 146 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 147 return 0 148 ;; 149 150 # "no", "false", "off", or "0" 151 [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) 152 return 1 153 ;; 154 *) 155 warn "\$${1} is not set properly - see ${rcvar_manpage}." 156 return 1 157 ;; 158 esac 159} 160 161# 162# reverse_list list 163# print the list in reverse order 164# 165reverse_list() 166{ 167 _revlist= 168 for _revfile; do 169 _revlist="$_revfile $_revlist" 170 done 171 echo $_revlist 172} 173 174# stop_boot always 175# If booting directly to multiuser or $always is enabled, 176# send SIGTERM to the parent (/etc/rc) to abort the boot. 177# Otherwise just exit. 178# 179stop_boot() 180{ 181 local always 182 183 case $1 in 184 # "yes", "true", "on", or "1" 185 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 186 always=true 187 ;; 188 *) 189 always=false 190 ;; 191 esac 192 if [ "$autoboot" = yes -o "$always" = true ]; then 193 echo "ERROR: ABORTING BOOT (sending SIGTERM to parent)!" 194 kill -TERM ${RC_PID} 195 fi 196 exit 1 197} 198 199# 200# mount_critical_filesystems type 201# Go through the list of critical filesystems as provided in 202# the rc.conf(5) variable $critical_filesystems_${type}, checking 203# each one to see if it is mounted, and if it is not, mounting it. 204# 205mount_critical_filesystems() 206{ 207 eval _fslist=\$critical_filesystems_${1} 208 for _fs in $_fslist; do 209 mount | ( 210 _ismounted=false 211 while read what _on on _type type; do 212 if [ $on = $_fs ]; then 213 _ismounted=true 214 fi 215 done 216 if $_ismounted; then 217 : 218 else 219 mount $_fs >/dev/null 2>&1 220 fi 221 ) 222 done 223} 224 225# 226# check_pidfile pidfile procname [interpreter] 227# Parses the first line of pidfile for a PID, and ensures 228# that the process is running and matches procname. 229# Prints the matching PID upon success, nothing otherwise. 230# interpreter is optional; see _find_processes() for details. 231# 232check_pidfile() 233{ 234 _pidfile=$1 235 _procname=$2 236 _interpreter=$3 237 if [ -z "$_pidfile" -o -z "$_procname" ]; then 238 err 3 'USAGE: check_pidfile pidfile procname [interpreter]' 239 fi 240 if [ ! -f $_pidfile ]; then 241 debug "pid file ($_pidfile): not readable." 242 return 243 fi 244 read _pid _junk < $_pidfile 245 if [ -z "$_pid" ]; then 246 debug "pid file ($_pidfile): no pid in file." 247 return 248 fi 249 _find_processes $_procname ${_interpreter:-.} '-p '"$_pid" 250} 251 252# 253# check_process procname [interpreter] 254# Ensures that a process (or processes) named procname is running. 255# Prints a list of matching PIDs. 256# interpreter is optional; see _find_processes() for details. 257# 258check_process() 259{ 260 _procname=$1 261 _interpreter=$2 262 if [ -z "$_procname" ]; then 263 err 3 'USAGE: check_process procname [interpreter]' 264 fi 265 _find_processes $_procname ${_interpreter:-.} '-ax' 266} 267 268# 269# _find_processes procname interpreter psargs 270# Search for procname in the output of ps generated by psargs. 271# Prints the PIDs of any matching processes, space separated. 272# 273# If interpreter == ".", check the following variations of procname 274# against the first word of each command: 275# procname 276# `basename procname` 277# `basename procname` + ":" 278# "(" + `basename procname` + ")" 279# "[" + `basename procname` + "]" 280# 281# If interpreter != ".", read the first line of procname, remove the 282# leading #!, normalise whitespace, append procname, and attempt to 283# match that against each command, either as is, or with extra words 284# at the end. As an alternative, to deal with interpreted daemons 285# using perl, the basename of the interpreter plus a colon is also 286# tried as the prefix to procname. 287# 288_find_processes() 289{ 290 if [ $# -ne 3 ]; then 291 err 3 'USAGE: _find_processes procname interpreter psargs' 292 fi 293 _procname=$1 294 _interpreter=$2 295 _psargs=$3 296 297 _pref= 298 if [ $_interpreter != "." ]; then # an interpreted script 299 _script=${_chroot}${_chroot:+"/"}$_procname 300 if [ -r $_script ]; then 301 read _interp < $_script # read interpreter name 302 case "$_interp" in 303 \#!*) 304 _interp=${_interp#\#!} # strip #! 305 set -- $_interp 306 case $1 in 307 */bin/env) 308 shift # drop env to get real name 309 ;; 310 esac 311 if [ $_interpreter != $1 ]; then 312 warn "\$command_interpreter $_interpreter != $1" 313 fi 314 ;; 315 *) 316 warn "no shebang line in $_script" 317 set -- $_interpreter 318 ;; 319 esac 320 else 321 warn "cannot read shebang line from $_script" 322 set -- $_interpreter 323 fi 324 _interp="$* $_procname" # cleanup spaces, add _procname 325 _interpbn=${1##*/} 326 _fp_args='_argv' 327 _fp_match='case "$_argv" in 328 ${_interp}|"${_interp} "*|"${_interpbn}: ${_procname}"*)' 329 else # a normal daemon 330 _procnamebn=${_procname##*/} 331 _fp_args='_arg0 _argv' 332 _fp_match='case "$_arg0" in 333 $_procname|$_procnamebn|${_procnamebn}:|"(${_procnamebn})"|"[${_procnamebn}]")' 334 fi 335 336 _proccheck="\ 337 $PS 2>/dev/null -o pid= -o jid= -o command= $_psargs"' | 338 while read _npid _jid '"$_fp_args"'; do 339 '"$_fp_match"' 340 if [ "$JID" -eq "$_jid" ]; 341 then echo -n "$_pref$_npid"; 342 _pref=" "; 343 fi 344 ;; 345 esac 346 done' 347 348# debug "in _find_processes: proccheck is ($_proccheck)." 349 eval $_proccheck 350} 351 352# 353# wait_for_pids pid [pid ...] 354# spins until none of the pids exist 355# 356wait_for_pids() 357{ 358 local _list _prefix _nlist _j 359 360 _list="$@" 361 if [ -z "$_list" ]; then 362 return 363 fi 364 _prefix= 365 while true; do 366 _nlist=""; 367 for _j in $_list; do 368 if kill -0 $_j 2>/dev/null; then 369 _nlist="${_nlist}${_nlist:+ }$_j" 370 [ -n "$_prefix" ] && sleep 1 371 fi 372 done 373 if [ -z "$_nlist" ]; then 374 break 375 fi 376 _list=$_nlist 377 echo -n ${_prefix:-"Waiting for PIDS: "}$_list 378 _prefix=", " 379 pwait $_list 2>/dev/null 380 done 381 if [ -n "$_prefix" ]; then 382 echo "." 383 fi 384} 385 386# 387# check_startmsgs 388# If rc_quiet is set (usually as a result of using faststart at 389# boot time) check if rc_startmsgs is enabled. 390# 391check_startmsgs() 392{ 393 if [ -n "$rc_quiet" ]; then 394 checkyesno rc_startmsgs 395 else 396 return 0 397 fi 398} 399 400# 401# run_rc_command argument 402# Search for argument in the list of supported commands, which is: 403# "start stop restart rcvar status poll ${extra_commands}" 404# If there's a match, run ${argument}_cmd or the default method 405# (see below). 406# 407# If argument has a given prefix, then change the operation as follows: 408# Prefix Operation 409# ------ --------- 410# fast Skip the pid check, and set rc_fast=yes, rc_quiet=yes 411# force Set ${rcvar} to YES, and set rc_force=yes 412# one Set ${rcvar} to YES 413# quiet Don't output some diagnostics, and set rc_quiet=yes 414# 415# The following globals are used: 416# 417# Name Needed Purpose 418# ---- ------ ------- 419# name y Name of script. 420# 421# command n Full path to command. 422# Not needed if ${rc_arg}_cmd is set for 423# each keyword. 424# 425# command_args n Optional args/shell directives for command. 426# 427# command_interpreter n If not empty, command is interpreted, so 428# call check_{pidfile,process}() appropriately. 429# 430# desc n Description of script. 431# 432# extra_commands n List of extra commands supported. 433# 434# pidfile n If set, use check_pidfile $pidfile $command, 435# otherwise use check_process $command. 436# In either case, only check if $command is set. 437# 438# procname n Process name to check for instead of $command. 439# 440# rcvar n This is checked with checkyesno to determine 441# if the action should be run. 442# 443# ${name}_program n Full path to command. 444# Meant to be used in /etc/rc.conf to override 445# ${command}. 446# 447# ${name}_chroot n Directory to chroot to before running ${command} 448# Requires /usr to be mounted. 449# 450# ${name}_chdir n Directory to cd to before running ${command} 451# (if not using ${name}_chroot). 452# 453# ${name}_flags n Arguments to call ${command} with. 454# NOTE: $flags from the parent environment 455# can be used to override this. 456# 457# ${name}_nice n Nice level to run ${command} at. 458# 459# ${name}_user n User to run ${command} as, using su(1) if not 460# using ${name}_chroot. 461# Requires /usr to be mounted. 462# 463# ${name}_group n Group to run chrooted ${command} as. 464# Requires /usr to be mounted. 465# 466# ${name}_groups n Comma separated list of supplementary groups 467# to run the chrooted ${command} with. 468# Requires /usr to be mounted. 469# 470# ${rc_arg}_cmd n If set, use this as the method when invoked; 471# Otherwise, use default command (see below) 472# 473# ${rc_arg}_precmd n If set, run just before performing the 474# ${rc_arg}_cmd method in the default 475# operation (i.e, after checking for required 476# bits and process (non)existence). 477# If this completes with a non-zero exit code, 478# don't run ${rc_arg}_cmd. 479# 480# ${rc_arg}_postcmd n If set, run just after performing the 481# ${rc_arg}_cmd method, if that method 482# returned a zero exit code. 483# 484# required_dirs n If set, check for the existence of the given 485# directories before running a (re)start command. 486# 487# required_files n If set, check for the readability of the given 488# files before running a (re)start command. 489# 490# required_modules n If set, ensure the given kernel modules are 491# loaded before running a (re)start command. 492# The check and possible loads are actually 493# done after start_precmd so that the modules 494# aren't loaded in vain, should the precmd 495# return a non-zero status to indicate a error. 496# If a word in the list looks like "foo:bar", 497# "foo" is the KLD file name and "bar" is the 498# module name. If a word looks like "foo~bar", 499# "foo" is the KLD file name and "bar" is a 500# egrep(1) pattern matching the module name. 501# Otherwise the module name is assumed to be 502# the same as the KLD file name, which is most 503# common. See load_kld(). 504# 505# required_vars n If set, perform checkyesno on each of the 506# listed variables before running the default 507# (re)start command. 508# 509# Default behaviour for a given argument, if no override method is 510# provided: 511# 512# Argument Default behaviour 513# -------- ----------------- 514# start if !running && checkyesno ${rcvar} 515# ${command} 516# 517# stop if ${pidfile} 518# rc_pid=$(check_pidfile $pidfile $command) 519# else 520# rc_pid=$(check_process $command) 521# kill $sig_stop $rc_pid 522# wait_for_pids $rc_pid 523# ($sig_stop defaults to TERM.) 524# 525# reload Similar to stop, except use $sig_reload instead, 526# and doesn't wait_for_pids. 527# $sig_reload defaults to HUP. 528# Note that `reload' isn't provided by default, 529# it should be enabled via $extra_commands. 530# 531# restart Run `stop' then `start'. 532# 533# status Show if ${command} is running, etc. 534# 535# poll Wait for ${command} to exit. 536# 537# rcvar Display what rc.conf variable is used (if any). 538# 539# Variables available to methods, and after run_rc_command() has 540# completed: 541# 542# Variable Purpose 543# -------- ------- 544# rc_arg Argument to command, after fast/force/one processing 545# performed 546# 547# rc_flags Flags to start the default command with. 548# Defaults to ${name}_flags, unless overridden 549# by $flags from the environment. 550# This variable may be changed by the precmd method. 551# 552# rc_pid PID of command (if appropriate) 553# 554# rc_fast Not empty if "fast" was provided (q.v.) 555# 556# rc_force Not empty if "force" was provided (q.v.) 557# 558# rc_quiet Not empty if "quiet" was provided 559# 560# 561run_rc_command() 562{ 563 _return=0 564 rc_arg=$1 565 if [ -z "$name" ]; then 566 err 3 'run_rc_command: $name is not set.' 567 fi 568 569 # Don't repeat the first argument when passing additional command- 570 # line arguments to the command subroutines. 571 # 572 shift 1 573 rc_extra_args="$*" 574 575 _rc_prefix= 576 case "$rc_arg" in 577 fast*) # "fast" prefix; don't check pid 578 rc_arg=${rc_arg#fast} 579 rc_fast=yes 580 rc_quiet=yes 581 ;; 582 force*) # "force" prefix; always run 583 rc_force=yes 584 _rc_prefix=force 585 rc_arg=${rc_arg#${_rc_prefix}} 586 if [ -n "${rcvar}" ]; then 587 eval ${rcvar}=YES 588 fi 589 ;; 590 one*) # "one" prefix; set ${rcvar}=yes 591 _rc_prefix=one 592 rc_arg=${rc_arg#${_rc_prefix}} 593 if [ -n "${rcvar}" ]; then 594 eval ${rcvar}=YES 595 fi 596 ;; 597 quiet*) # "quiet" prefix; omit some messages 598 _rc_prefix=quiet 599 rc_arg=${rc_arg#${_rc_prefix}} 600 rc_quiet=yes 601 ;; 602 esac 603 604 eval _override_command=\$${name}_program 605 command=${_override_command:-$command} 606 607 _keywords="start stop restart rcvar $extra_commands" 608 rc_pid= 609 _pidcmd= 610 _procname=${procname:-${command}} 611 612 # setup pid check command 613 if [ -n "$_procname" ]; then 614 if [ -n "$pidfile" ]; then 615 _pidcmd='rc_pid=$(check_pidfile '"$pidfile $_procname $command_interpreter"')' 616 else 617 _pidcmd='rc_pid=$(check_process '"$_procname $command_interpreter"')' 618 fi 619 if [ -n "$_pidcmd" ]; then 620 _keywords="${_keywords} status poll" 621 fi 622 fi 623 624 if [ -z "$rc_arg" ]; then 625 rc_usage $_keywords 626 fi 627 628 if [ -n "$flags" ]; then # allow override from environment 629 rc_flags=$flags 630 else 631 eval rc_flags=\$${name}_flags 632 fi 633 eval _chdir=\$${name}_chdir _chroot=\$${name}_chroot \ 634 _nice=\$${name}_nice _user=\$${name}_user \ 635 _group=\$${name}_group _groups=\$${name}_groups 636 637 if [ -n "$_user" ]; then # unset $_user if running as that user 638 if [ "$_user" = "$(eval $IDCMD)" ]; then 639 unset _user 640 fi 641 fi 642 643 eval $_pidcmd # determine the pid if necessary 644 645 for _elem in $_keywords; do 646 if [ "$_elem" != "$rc_arg" ]; then 647 continue 648 fi 649 # if ${rcvar} is set, $1 is not "rcvar" 650 # and ${rc_pid} is not set, then run 651 # checkyesno ${rcvar} 652 # and return if that failed 653 # 654 if [ -n "${rcvar}" -a "$rc_arg" != "rcvar" -a -z "${rc_pid}" ]; then 655 if ! checkyesno ${rcvar}; then 656 if [ -n "${rc_quiet}" ]; then 657 return 0 658 fi 659 echo -n "Cannot '${rc_arg}' $name. Set ${rcvar} to " 660 echo -n "YES in /etc/rc.conf or use 'one${rc_arg}' " 661 echo "instead of '${rc_arg}'." 662 return 0 663 fi 664 fi 665 666 # if there's a custom ${XXX_cmd}, 667 # run that instead of the default 668 # 669 eval _cmd=\$${rc_arg}_cmd \ 670 _precmd=\$${rc_arg}_precmd \ 671 _postcmd=\$${rc_arg}_postcmd 672 673 if [ -n "$_cmd" ]; then 674 _run_rc_precmd || return 1 675 _run_rc_doit "$_cmd $rc_extra_args" || return 1 676 _run_rc_postcmd 677 return $_return 678 fi 679 680 case "$rc_arg" in # default operations... 681 682 status) 683 _run_rc_precmd || return 1 684 if [ -n "$rc_pid" ]; then 685 echo "${name} is running as pid $rc_pid." 686 else 687 echo "${name} is not running." 688 return 1 689 fi 690 _run_rc_postcmd 691 ;; 692 693 start) 694 if [ -z "$rc_fast" -a -n "$rc_pid" ]; then 695 echo 1>&2 "${name} already running? (pid=$rc_pid)." 696 return 1 697 fi 698 699 if [ ! -x ${_chroot}${_chroot:+"/"}${command} ]; then 700 warn "run_rc_command: cannot run $command" 701 return 1 702 fi 703 704 if ! _run_rc_precmd; then 705 warn "failed precmd routine for ${name}" 706 return 1 707 fi 708 709 # setup the full command to run 710 # 711 check_startmsgs && echo "Starting ${name}." 712 if [ -n "$_chroot" ]; then 713 _doit="\ 714${_nice:+nice -n $_nice }\ 715chroot ${_user:+-u $_user }${_group:+-g $_group }${_groups:+-G $_groups }\ 716$_chroot $command $rc_flags $command_args" 717 else 718 _doit="\ 719${_chdir:+cd $_chdir && }\ 720$command $rc_flags $command_args" 721 if [ -n "$_user" ]; then 722 _doit="su -m $_user -c 'sh -c \"$_doit\"'" 723 fi 724 if [ -n "$_nice" ]; then 725 if [ -z "$_user" ]; then 726 _doit="sh -c \"$_doit\"" 727 fi 728 _doit="nice -n $_nice $_doit" 729 fi 730 fi 731 732 # run the full command 733 # 734 if ! _run_rc_doit "$_doit"; then 735 warn "failed to start ${name}" 736 return 1 737 fi 738 739 # finally, run postcmd 740 # 741 _run_rc_postcmd 742 ;; 743 744 stop) 745 if [ -z "$rc_pid" ]; then 746 [ -n "$rc_fast" ] && return 0 747 _run_rc_notrunning 748 return 1 749 fi 750 751 _run_rc_precmd || return 1 752 753 # send the signal to stop 754 # 755 echo "Stopping ${name}." 756 _doit=$(_run_rc_killcmd "${sig_stop:-TERM}") 757 _run_rc_doit "$_doit" || return 1 758 759 # wait for the command to exit, 760 # and run postcmd. 761 wait_for_pids $rc_pid 762 763 _run_rc_postcmd 764 ;; 765 766 reload) 767 if [ -z "$rc_pid" ]; then 768 _run_rc_notrunning 769 return 1 770 fi 771 772 _run_rc_precmd || return 1 773 774 _doit=$(_run_rc_killcmd "${sig_reload:-HUP}") 775 _run_rc_doit "$_doit" || return 1 776 777 _run_rc_postcmd 778 ;; 779 780 restart) 781 # prevent restart being called more 782 # than once by any given script 783 # 784 if ${_rc_restart_done:-false}; then 785 return 0 786 fi 787 _rc_restart_done=true 788 789 _run_rc_precmd || return 1 790 791 # run those in a subshell to keep global variables 792 ( run_rc_command ${_rc_prefix}stop $rc_extra_args ) 793 ( run_rc_command ${_rc_prefix}start $rc_extra_args ) 794 _return=$? 795 [ $_return -ne 0 ] && [ -z "$rc_force" ] && return 1 796 797 _run_rc_postcmd 798 ;; 799 800 poll) 801 _run_rc_precmd || return 1 802 if [ -n "$rc_pid" ]; then 803 wait_for_pids $rc_pid 804 fi 805 _run_rc_postcmd 806 ;; 807 808 rcvar) 809 echo -n "# $name" 810 if [ -n "$desc" ]; then 811 echo " : $desc" 812 else 813 echo "" 814 fi 815 echo "#" 816 # Get unique vars in $rcvar $rcvars 817 for _v in $rcvar $rcvars; do 818 case $v in 819 $_v\ *|\ *$_v|*\ $_v\ *) ;; 820 *) v="${v# } $_v" ;; 821 esac 822 done 823 824 # Display variables. 825 for _v in $v; do 826 if [ -z "$_v" ]; then 827 continue 828 fi 829 830 eval _desc=\$${_v}_desc 831 eval _defval=\$${_v}_defval 832 _h="-" 833 834 eval echo \"$_v=\\\"\$$_v\\\"\" 835 # decode multiple lines of _desc 836 while [ -n "$_desc" ]; do 837 case $_desc in 838 *^^*) 839 echo "# $_h ${_desc%%^^*}" 840 _desc=${_desc#*^^} 841 _h=" " 842 ;; 843 *) 844 echo "# $_h ${_desc}" 845 break 846 ;; 847 esac 848 done 849 echo "# (default: \"$_defval\")" 850 done 851 echo "" 852 ;; 853 854 *) 855 rc_usage $_keywords 856 ;; 857 858 esac 859 return $_return 860 done 861 862 echo 1>&2 "$0: unknown directive '$rc_arg'." 863 rc_usage $_keywords 864 # not reached 865} 866 867# 868# Helper functions for run_rc_command: common code. 869# They use such global variables besides the exported rc_* ones: 870# 871# name R/W 872# ------------------ 873# _precmd R 874# _postcmd R 875# _return W 876# 877_run_rc_precmd() 878{ 879 check_required_before "$rc_arg" || return 1 880 881 if [ -n "$_precmd" ]; then 882 debug "run_rc_command: ${rc_arg}_precmd: $_precmd $rc_extra_args" 883 eval "$_precmd $rc_extra_args" 884 _return=$? 885 886 # If precmd failed and force isn't set, request exit. 887 if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then 888 return 1 889 fi 890 fi 891 892 check_required_after "$rc_arg" || return 1 893 894 return 0 895} 896 897_run_rc_postcmd() 898{ 899 if [ -n "$_postcmd" ]; then 900 debug "run_rc_command: ${rc_arg}_postcmd: $_postcmd $rc_extra_args" 901 eval "$_postcmd $rc_extra_args" 902 _return=$? 903 fi 904 return 0 905} 906 907_run_rc_doit() 908{ 909 debug "run_rc_command: doit: $*" 910 eval "$@" 911 _return=$? 912 913 # If command failed and force isn't set, request exit. 914 if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then 915 return 1 916 fi 917 918 return 0 919} 920 921_run_rc_notrunning() 922{ 923 local _pidmsg 924 925 if [ -n "$pidfile" ]; then 926 _pidmsg=" (check $pidfile)." 927 else 928 _pidmsg= 929 fi 930 echo 1>&2 "${name} not running?${_pidmsg}" 931} 932 933_run_rc_killcmd() 934{ 935 local _cmd 936 937 _cmd="kill -$1 $rc_pid" 938 if [ -n "$_user" ]; then 939 _cmd="su -m ${_user} -c 'sh -c \"${_cmd}\"'" 940 fi 941 echo "$_cmd" 942} 943 944# 945# run_rc_script file arg 946# Start the script `file' with `arg', and correctly handle the 947# return value from the script. 948# If `file' ends with `.sh', it's sourced into the current environment 949# when $rc_fast_and_loose is set, otherwise it is run as a child process. 950# If `file' appears to be a backup or scratch file, ignore it. 951# Otherwise if it is executable run as a child process. 952# 953run_rc_script() 954{ 955 _file=$1 956 _arg=$2 957 if [ -z "$_file" -o -z "$_arg" ]; then 958 err 3 'USAGE: run_rc_script file arg' 959 fi 960 961 unset name command command_args command_interpreter \ 962 extra_commands pidfile procname \ 963 rcvar rcvars rcvars_obsolete required_dirs required_files \ 964 required_vars 965 eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd 966 967 case "$_file" in 968 /etc/rc.d/*.sh) # no longer allowed in the base 969 warn "Ignoring old-style startup script $_file" 970 ;; 971 *[~#]|*.OLD|*.bak|*.orig|*,v) # scratch file; skip 972 warn "Ignoring scratch file $_file" 973 ;; 974 *) # run in subshell 975 if [ -x $_file ]; then 976 if [ -n "$rc_fast_and_loose" ]; then 977 set $_arg; . $_file 978 else 979 ( trap "echo Script $_file interrupted; kill -QUIT $$" 3 980 trap "echo Script $_file interrupted; exit 1" 2 981 trap "echo Script $_file running" 29 982 set $_arg; . $_file ) 983 fi 984 fi 985 ;; 986 esac 987} 988 989# 990# load_rc_config name 991# Source in the configuration file for a given name. 992# 993load_rc_config() 994{ 995 local _name _var _defval _v _msg _new 996 _name=$1 997 if [ -z "$_name" ]; then 998 err 3 'USAGE: load_rc_config name' 999 fi 1000 1001 if ${_rc_conf_loaded:-false}; then 1002 : 1003 else 1004 if [ -r /etc/defaults/rc.conf ]; then 1005 debug "Sourcing /etc/defaults/rc.conf" 1006 . /etc/defaults/rc.conf 1007 source_rc_confs 1008 elif [ -r /etc/rc.conf ]; then 1009 debug "Sourcing /etc/rc.conf (/etc/defaults/rc.conf doesn't exist)." 1010 . /etc/rc.conf 1011 fi 1012 _rc_conf_loaded=true 1013 fi 1014 if [ -f /etc/rc.conf.d/"$_name" ]; then 1015 debug "Sourcing /etc/rc.conf.d/${_name}" 1016 . /etc/rc.conf.d/"$_name" 1017 fi 1018 1019 # Old variable name support -- Remove before 9.0-RELEASE 1020 # 1021 [ -n "$enable_quotas" ] && err 1 "enable_quotas is deprecated, use quota_enable" 1022 1023 # Set defaults if defined. 1024 for _var in $rcvar $rcvars; do 1025 _defval=`eval echo "\\\$${_var}_defval"` 1026 if [ -n "$_defval" ]; then 1027 eval : \${$_var:=\$${_var}_defval} 1028 fi 1029 done 1030 1031 # check obsolete rc.conf variables 1032 for _var in $rcvars_obsolete; do 1033 _v=`eval echo \\$$_var` 1034 _msg=`eval echo \\$${_var}_obsolete_msg` 1035 _new=`eval echo \\$${_var}_newvar` 1036 case $_v in 1037 "") 1038 ;; 1039 *) 1040 if [ -z "$_new" ]; then 1041 _msg="Ignored." 1042 else 1043 eval $_new=\"\$$_var\" 1044 if [ -z "$_msg" ]; then 1045 _msg="Use \$$_new instead." 1046 fi 1047 fi 1048 warn "\$$_var is obsolete. $_msg" 1049 ;; 1050 esac 1051 done 1052} 1053 1054# 1055# load_rc_config_var name var 1056# Read the rc.conf(5) var for name and set in the 1057# current shell, using load_rc_config in a subshell to prevent 1058# unwanted side effects from other variable assignments. 1059# 1060load_rc_config_var() 1061{ 1062 if [ $# -ne 2 ]; then 1063 err 3 'USAGE: load_rc_config_var name var' 1064 fi 1065 eval $(eval '( 1066 load_rc_config '$1' >/dev/null; 1067 if [ -n "${'$2'}" -o "${'$2'-UNSET}" != "UNSET" ]; then 1068 echo '$2'=\'\''${'$2'}\'\''; 1069 fi 1070 )' ) 1071} 1072 1073# 1074# rc_usage commands 1075# Print a usage string for $0, with `commands' being a list of 1076# valid commands. 1077# 1078rc_usage() 1079{ 1080 echo -n 1>&2 "Usage: $0 [fast|force|one](" 1081 1082 _sep= 1083 for _elem; do 1084 echo -n 1>&2 "$_sep$_elem" 1085 _sep="|" 1086 done 1087 echo 1>&2 ")" 1088 exit 1 1089} 1090 1091# 1092# err exitval message 1093# Display message to stderr and log to the syslog, and exit with exitval. 1094# 1095err() 1096{ 1097 exitval=$1 1098 shift 1099 1100 if [ -x /usr/bin/logger ]; then 1101 logger "$0: ERROR: $*" 1102 fi 1103 echo 1>&2 "$0: ERROR: $*" 1104 exit $exitval 1105} 1106 1107# 1108# warn message 1109# Display message to stderr and log to the syslog. 1110# 1111warn() 1112{ 1113 if [ -x /usr/bin/logger ]; then 1114 logger "$0: WARNING: $*" 1115 fi 1116 echo 1>&2 "$0: WARNING: $*" 1117} 1118 1119# 1120# info message 1121# Display informational message to stdout and log to syslog. 1122# 1123info() 1124{ 1125 case ${rc_info} in 1126 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 1127 if [ -x /usr/bin/logger ]; then 1128 logger "$0: INFO: $*" 1129 fi 1130 echo "$0: INFO: $*" 1131 ;; 1132 esac 1133} 1134 1135# 1136# debug message 1137# If debugging is enabled in rc.conf output message to stderr. 1138# BEWARE that you don't call any subroutine that itself calls this 1139# function. 1140# 1141debug() 1142{ 1143 case ${rc_debug} in 1144 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 1145 if [ -x /usr/bin/logger ]; then 1146 logger "$0: DEBUG: $*" 1147 fi 1148 echo 1>&2 "$0: DEBUG: $*" 1149 ;; 1150 esac 1151} 1152 1153# 1154# backup_file action file cur backup 1155# Make a backup copy of `file' into `cur', and save the previous 1156# version of `cur' as `backup' or use rcs for archiving. 1157# 1158# This routine checks the value of the backup_uses_rcs variable, 1159# which can be either YES or NO. 1160# 1161# The `action' keyword can be one of the following: 1162# 1163# add `file' is now being backed up (and is possibly 1164# being reentered into the backups system). `cur' 1165# is created and RCS files, if necessary, are 1166# created as well. 1167# 1168# update `file' has changed and needs to be backed up. 1169# If `cur' exists, it is copied to to `back' or 1170# checked into RCS (if the repository file is old), 1171# and then `file' is copied to `cur'. Another RCS 1172# check in done here if RCS is being used. 1173# 1174# remove `file' is no longer being tracked by the backups 1175# system. If RCS is not being used, `cur' is moved 1176# to `back', otherwise an empty file is checked in, 1177# and then `cur' is removed. 1178# 1179# 1180backup_file() 1181{ 1182 _action=$1 1183 _file=$2 1184 _cur=$3 1185 _back=$4 1186 1187 if checkyesno backup_uses_rcs; then 1188 _msg0="backup archive" 1189 _msg1="update" 1190 1191 # ensure that history file is not locked 1192 if [ -f $_cur,v ]; then 1193 rcs -q -u -U -M $_cur 1194 fi 1195 1196 # ensure after switching to rcs that the 1197 # current backup is not lost 1198 if [ -f $_cur ]; then 1199 # no archive, or current newer than archive 1200 if [ ! -f $_cur,v -o $_cur -nt $_cur,v ]; then 1201 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1202 rcs -q -kb -U $_cur 1203 co -q -f -u $_cur 1204 fi 1205 fi 1206 1207 case $_action in 1208 add|update) 1209 cp -p $_file $_cur 1210 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1211 rcs -q -kb -U $_cur 1212 co -q -f -u $_cur 1213 chown root:wheel $_cur $_cur,v 1214 ;; 1215 remove) 1216 cp /dev/null $_cur 1217 ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur 1218 rcs -q -kb -U $_cur 1219 chown root:wheel $_cur $_cur,v 1220 rm $_cur 1221 ;; 1222 esac 1223 else 1224 case $_action in 1225 add|update) 1226 if [ -f $_cur ]; then 1227 cp -p $_cur $_back 1228 fi 1229 cp -p $_file $_cur 1230 chown root:wheel $_cur 1231 ;; 1232 remove) 1233 mv -f $_cur $_back 1234 ;; 1235 esac 1236 fi 1237} 1238 1239# make_symlink src link 1240# Make a symbolic link 'link' to src from basedir. If the 1241# directory in which link is to be created does not exist 1242# a warning will be displayed and an error will be returned. 1243# Returns 0 on sucess, 1 otherwise. 1244# 1245make_symlink() 1246{ 1247 local src link linkdir _me 1248 src="$1" 1249 link="$2" 1250 linkdir="`dirname $link`" 1251 _me="make_symlink()" 1252 1253 if [ -z "$src" -o -z "$link" ]; then 1254 warn "$_me: requires two arguments." 1255 return 1 1256 fi 1257 if [ ! -d "$linkdir" ]; then 1258 warn "$_me: the directory $linkdir does not exist." 1259 return 1 1260 fi 1261 if ! ln -sf $src $link; then 1262 warn "$_me: unable to make a symbolic link from $link to $src" 1263 return 1 1264 fi 1265 return 0 1266} 1267 1268# devfs_rulesets_from_file file 1269# Reads a set of devfs commands from file, and creates 1270# the specified rulesets with their rules. Returns non-zero 1271# if there was an error. 1272# 1273devfs_rulesets_from_file() 1274{ 1275 local file _err _me 1276 file="$1" 1277 _me="devfs_rulesets_from_file" 1278 _err=0 1279 1280 if [ -z "$file" ]; then 1281 warn "$_me: you must specify a file" 1282 return 1 1283 fi 1284 if [ ! -e "$file" ]; then 1285 debug "$_me: no such file ($file)" 1286 return 0 1287 fi 1288 debug "reading rulesets from file ($file)" 1289 { while read line 1290 do 1291 case $line in 1292 \#*) 1293 continue 1294 ;; 1295 \[*\]*) 1296 rulenum=`expr "$line" : "\[.*=\([0-9]*\)\]"` 1297 if [ -z "$rulenum" ]; then 1298 warn "$_me: cannot extract rule number ($line)" 1299 _err=1 1300 break 1301 fi 1302 rulename=`expr "$line" : "\[\(.*\)=[0-9]*\]"` 1303 if [ -z "$rulename" ]; then 1304 warn "$_me: cannot extract rule name ($line)" 1305 _err=1 1306 break; 1307 fi 1308 eval $rulename=\$rulenum 1309 debug "found ruleset: $rulename=$rulenum" 1310 if ! /sbin/devfs rule -s $rulenum delset; then 1311 _err=1 1312 break 1313 fi 1314 ;; 1315 *) 1316 rulecmd="${line%%"\#*"}" 1317 # evaluate the command incase it includes 1318 # other rules 1319 if [ -n "$rulecmd" ]; then 1320 debug "adding rule ($rulecmd)" 1321 if ! eval /sbin/devfs rule -s $rulenum $rulecmd 1322 then 1323 _err=1 1324 break 1325 fi 1326 fi 1327 ;; 1328 esac 1329 if [ $_err -ne 0 ]; then 1330 debug "error in $_me" 1331 break 1332 fi 1333 done } < $file 1334 return $_err 1335} 1336 1337# devfs_init_rulesets 1338# Initializes rulesets from configuration files. Returns 1339# non-zero if there was an error. 1340# 1341devfs_init_rulesets() 1342{ 1343 local file _me 1344 _me="devfs_init_rulesets" 1345 1346 # Go through this only once 1347 if [ -n "$devfs_rulesets_init" ]; then 1348 debug "$_me: devfs rulesets already initialized" 1349 return 1350 fi 1351 for file in $devfs_rulesets; do 1352 if ! devfs_rulesets_from_file $file; then 1353 warn "$_me: could not read rules from $file" 1354 return 1 1355 fi 1356 done 1357 devfs_rulesets_init=1 1358 debug "$_me: devfs rulesets initialized" 1359 return 0 1360} 1361 1362# devfs_set_ruleset ruleset [dir] 1363# Sets the default ruleset of dir to ruleset. The ruleset argument 1364# must be a ruleset name as specified in devfs.rules(5) file. 1365# Returns non-zero if it could not set it successfully. 1366# 1367devfs_set_ruleset() 1368{ 1369 local devdir rs _me 1370 [ -n "$1" ] && eval rs=\$$1 || rs= 1371 [ -n "$2" ] && devdir="-m "$2"" || devdir= 1372 _me="devfs_set_ruleset" 1373 1374 if [ -z "$rs" ]; then 1375 warn "$_me: you must specify a ruleset number" 1376 return 1 1377 fi 1378 debug "$_me: setting ruleset ($rs) on mount-point (${devdir#-m })" 1379 if ! /sbin/devfs $devdir ruleset $rs; then 1380 warn "$_me: unable to set ruleset $rs to ${devdir#-m }" 1381 return 1 1382 fi 1383 return 0 1384} 1385 1386# devfs_apply_ruleset ruleset [dir] 1387# Apply ruleset number $ruleset to the devfs mountpoint $dir. 1388# The ruleset argument must be a ruleset name as specified 1389# in a devfs.rules(5) file. Returns 0 on success or non-zero 1390# if it could not apply the ruleset. 1391# 1392devfs_apply_ruleset() 1393{ 1394 local devdir rs _me 1395 [ -n "$1" ] && eval rs=\$$1 || rs= 1396 [ -n "$2" ] && devdir="-m "$2"" || devdir= 1397 _me="devfs_apply_ruleset" 1398 1399 if [ -z "$rs" ]; then 1400 warn "$_me: you must specify a ruleset" 1401 return 1 1402 fi 1403 debug "$_me: applying ruleset ($rs) to mount-point (${devdir#-m })" 1404 if ! /sbin/devfs $devdir rule -s $rs applyset; then 1405 warn "$_me: unable to apply ruleset $rs to ${devdir#-m }" 1406 return 1 1407 fi 1408 return 0 1409} 1410 1411# devfs_domount dir [ruleset] 1412# Mount devfs on dir. If ruleset is specified it is set 1413# on the mount-point. It must also be a ruleset name as specified 1414# in a devfs.rules(5) file. Returns 0 on success. 1415# 1416devfs_domount() 1417{ 1418 local devdir rs _me 1419 devdir="$1" 1420 [ -n "$2" ] && rs=$2 || rs= 1421 _me="devfs_domount()" 1422 1423 if [ -z "$devdir" ]; then 1424 warn "$_me: you must specify a mount-point" 1425 return 1 1426 fi 1427 debug "$_me: mount-point is ($devdir), ruleset is ($rs)" 1428 if ! mount -t devfs dev "$devdir"; then 1429 warn "$_me: Unable to mount devfs on $devdir" 1430 return 1 1431 fi 1432 if [ -n "$rs" ]; then 1433 devfs_init_rulesets 1434 devfs_set_ruleset $rs $devdir 1435 devfs -m $devdir rule applyset 1436 fi 1437 return 0 1438} 1439 1440# devfs_mount_jail dir [ruleset] 1441# Mounts a devfs file system appropriate for jails 1442# on the directory dir. If ruleset is specified, the ruleset 1443# it names will be used instead. If present, ruleset must 1444# be the name of a ruleset as defined in a devfs.rules(5) file. 1445# This function returns non-zero if an error occurs. 1446# 1447devfs_mount_jail() 1448{ 1449 local jdev rs _me 1450 jdev="$1" 1451 [ -n "$2" ] && rs=$2 || rs="devfsrules_jail" 1452 _me="devfs_mount_jail" 1453 1454 devfs_init_rulesets 1455 if ! devfs_domount "$jdev" $rs; then 1456 warn "$_me: devfs was not mounted on $jdev" 1457 return 1 1458 fi 1459 return 0 1460} 1461 1462# Provide a function for normalizing the mounting of memory 1463# filesystems. This should allow the rest of the code here to remain 1464# as close as possible between 5-current and 4-stable. 1465# $1 = size 1466# $2 = mount point 1467# $3 = (optional) extra mdmfs flags 1468mount_md() 1469{ 1470 if [ -n "$3" ]; then 1471 flags="$3" 1472 fi 1473 /sbin/mdmfs $flags -s $1 md $2 1474} 1475 1476# Code common to scripts that need to load a kernel module 1477# if it isn't in the kernel yet. Syntax: 1478# load_kld [-e regex] [-m module] file 1479# where -e or -m chooses the way to check if the module 1480# is already loaded: 1481# regex is egrep'd in the output from `kldstat -v', 1482# module is passed to `kldstat -m'. 1483# The default way is as though `-m file' were specified. 1484load_kld() 1485{ 1486 local _loaded _mod _opt _re 1487 1488 while getopts "e:m:" _opt; do 1489 case "$_opt" in 1490 e) _re="$OPTARG" ;; 1491 m) _mod="$OPTARG" ;; 1492 *) err 3 'USAGE: load_kld [-e regex] [-m module] file' ;; 1493 esac 1494 done 1495 shift $(($OPTIND - 1)) 1496 if [ $# -ne 1 ]; then 1497 err 3 'USAGE: load_kld [-e regex] [-m module] file' 1498 fi 1499 _mod=${_mod:-$1} 1500 _loaded=false 1501 if [ -n "$_re" ]; then 1502 if kldstat -v | egrep -q -e "$_re"; then 1503 _loaded=true 1504 fi 1505 else 1506 if kldstat -q -m "$_mod"; then 1507 _loaded=true 1508 fi 1509 fi 1510 if ! $_loaded; then 1511 if ! kldload "$1"; then 1512 warn "Unable to load kernel module $1" 1513 return 1 1514 else 1515 info "$1 kernel module loaded." 1516 fi 1517 else 1518 debug "load_kld: $1 kernel module already loaded." 1519 fi 1520 return 0 1521} 1522 1523# ltr str src dst 1524# Change every $src in $str to $dst. 1525# Useful when /usr is not yet mounted and we cannot use tr(1), sed(1) nor 1526# awk(1). 1527ltr() 1528{ 1529 local _str _src _dst _out _com 1530 _str=$1 1531 _src=$2 1532 _dst=$3 1533 _out="" 1534 1535 IFS=${_src} 1536 for _com in ${_str}; do 1537 if [ -z "${_out}" ]; then 1538 _out="${_com}" 1539 else 1540 _out="${_out}${_dst}${_com}" 1541 fi 1542 done 1543 echo "${_out}" 1544} 1545 1546# Creates a list of providers for GELI encryption. 1547geli_make_list() 1548{ 1549 local devices devices2 1550 local provider mountpoint type options rest 1551 1552 # Create list of GELI providers from fstab. 1553 while read provider mountpoint type options rest ; do 1554 case ":${options}" in 1555 :*noauto*) 1556 noauto=yes 1557 ;; 1558 *) 1559 noauto=no 1560 ;; 1561 esac 1562 1563 case ":${provider}" in 1564 :#*) 1565 continue 1566 ;; 1567 *.eli) 1568 # Skip swap devices. 1569 if [ "${type}" = "swap" -o "${options}" = "sw" -o "${noauto}" = "yes" ]; then 1570 continue 1571 fi 1572 devices="${devices} ${provider}" 1573 ;; 1574 esac 1575 done < /etc/fstab 1576 1577 # Append providers from geli_devices. 1578 devices="${devices} ${geli_devices}" 1579 1580 for provider in ${devices}; do 1581 provider=${provider%.eli} 1582 provider=${provider#/dev/} 1583 devices2="${devices2} ${provider}" 1584 done 1585 1586 echo ${devices2} 1587} 1588 1589# Find scripts in local_startup directories that use the old syntax 1590# 1591find_local_scripts_old () { 1592 zlist='' 1593 slist='' 1594 for dir in ${local_startup}; do 1595 if [ -d "${dir}" ]; then 1596 for file in ${dir}/[0-9]*.sh; do 1597 grep '^# PROVIDE:' $file >/dev/null 2>&1 && 1598 continue 1599 zlist="$zlist $file" 1600 done 1601 for file in ${dir}/[^0-9]*.sh; do 1602 grep '^# PROVIDE:' $file >/dev/null 2>&1 && 1603 continue 1604 slist="$slist $file" 1605 done 1606 fi 1607 done 1608} 1609 1610find_local_scripts_new () { 1611 local_rc='' 1612 for dir in ${local_startup}; do 1613 if [ -d "${dir}" ]; then 1614 for file in `grep -l '^# PROVIDE:' ${dir}/* 2>/dev/null`; do 1615 case "$file" in 1616 *.sample) ;; 1617 *) if [ -x "$file" ]; then 1618 local_rc="${local_rc} ${file}" 1619 fi 1620 ;; 1621 esac 1622 done 1623 fi 1624 done 1625} 1626 1627# check_required_{before|after} command 1628# Check for things required by the command before and after its precmd, 1629# respectively. The two separate functions are needed because some 1630# conditions should prevent precmd from being run while other things 1631# depend on precmd having already been run. 1632# 1633check_required_before() 1634{ 1635 local _f 1636 1637 case "$1" in 1638 start) 1639 for _f in $required_vars; do 1640 if ! checkyesno $_f; then 1641 warn "\$${_f} is not enabled." 1642 if [ -z "$rc_force" ]; then 1643 return 1 1644 fi 1645 fi 1646 done 1647 1648 for _f in $required_dirs; do 1649 if [ ! -d "${_f}/." ]; then 1650 warn "${_f} is not a directory." 1651 if [ -z "$rc_force" ]; then 1652 return 1 1653 fi 1654 fi 1655 done 1656 1657 for _f in $required_files; do 1658 if [ ! -r "${_f}" ]; then 1659 warn "${_f} is not readable." 1660 if [ -z "$rc_force" ]; then 1661 return 1 1662 fi 1663 fi 1664 done 1665 ;; 1666 esac 1667 1668 return 0 1669} 1670 1671check_required_after() 1672{ 1673 local _f _args 1674 1675 case "$1" in 1676 start) 1677 for _f in $required_modules; do 1678 case "${_f}" in 1679 *~*) _args="-e ${_f#*~} ${_f%%~*}" ;; 1680 *:*) _args="-m ${_f#*:} ${_f%%:*}" ;; 1681 *) _args="${_f}" ;; 1682 esac 1683 if ! load_kld ${_args}; then 1684 if [ -z "$rc_force" ]; then 1685 return 1 1686 fi 1687 fi 1688 done 1689 ;; 1690 esac 1691 1692 return 0 1693} 1694 1695fi 1696 1697# _echoonce var msg mode 1698# mode=0: Echo $msg if ${$var} is empty. 1699# After doing echo, a string is set to ${$var}. 1700# 1701# mode=1: Echo $msg if ${$var} is a string with non-zero length. 1702# 1703_echoonce() 1704{ 1705 local _var _msg _mode 1706 _var=`eval echo \\$$1` 1707 _msg=$2 1708 _mode=$3 1709 1710 case $_mode in 1711 1) [ -n "$_var" ] && echo "$_msg" ;; 1712 *) [ -z "$_var" ] && echo -n "$_msg" && eval "$1=finished" ;; 1713 esac 1714} 1715 1716_rc_subr_loaded=: 1717