[Please reply to freebsd-rc_at_] Hi, I would like your feedback and testers of the attached patch. This implements multiple instance support in rc.d scripts. You can try it by replacing /etc/rc.subr with the attached one. More details are as follow. Typically, an rc.d/foo script has the following structure and rc.conf variables: /etc/rc.d/foo: ---- name=foo rcvar=foo_enable ... load_rc_command $name run_rc_command $* ---- /etc/rc.conf: ---- foo_enable="YES" foo_flags="-f -l -a -g" ---- The above supports one instance for one script. After replacing rc.subr, you can specify additional instances in rc.conf: /etc/rc.conf: ---- foo_instances="one two" foo_one_enable="YES" foo_one_flags="-f -l -a -g" foo_two_enable="YES" foo_two_flags="-F -L -A -G" ---- $foo_instances defines instances by space-separated list of instance names, and rc.conf variables for them are something like ${name}_${instname}_enable. The following command # service foo start starts foo_one and foo_two with the specified flags. Instances can be specified in the following form: # service foo start:one or multiple instances in a particular order: # service foo start:two,one Basically, no change is required for the rc.d/foo script itself. However, there is a problem that default values of the instantiated variables are not defined. For example, if an rc.d/script uses $foo_mode, you need to define $foo_one_mode. The default value of $foo_mode is usually defined in etc/defaults/rc.conf for rc.d scripts in the base system and ": ${foo_mode:=value}" idiom in scripts from Ports Collection. So all of the variables should be defined for each instance, too. As you noticed, this is not easy without editing the script itself. To alleviate this, set_rcvar() can be used: /etc/rc.d/foo: ---- name=foo rcvar=foo_enable set_rcvar foo_enable YES "Enable $name" set_rcvar foo_program "/tmp/test" "Command for $name" ... load_rc_command $name run_rc_command $* ---- The three arguments are varname, default value, and description. If a variable is defined by set_rcvar(), default values instantiated variables will be set automatically---foo_one_program is set by foo_program if it is not defined. This approach still has another problem. set_rcvar() is not supported in all branches, so a script using it does not work in old supported branches. One solution which can be used for scripts in Ports Collection is adding both definitions before and after load_rc_command() until EoL of old branches like this: /etc/rc.d/foo: ---- name=foo rcvar=foo_enable if type set_rcvar >/dev/null 2>&1; then set_rcvar foo_enable YES "Enable $name" set_rcvar foo_program "/tmp/test" "Command for $name" fi ... load_rc_command $name # will be removed after all supported branches have set_rcvar(). if ! type set_rcvar >/dev/null 2>&1; then : ${foo_enable:="YES"} : ${foo_program:="/tmp/test"} for _i in $foo_instances; do for _j in enable program; do eval : \${foo_${_i}_enable:=\$foo_$_j} done done fi run_rc_command $* ---- This is a bit ugly but should work fine. I am using this patch to invoke multiple named (caching server/contents server) and syslogd (local only/listens INET/INET6 socket only) daemons. While $foo_instances is designed as a user-defined knob, this can be applied to software which need to invoke multiple/different daemons which depend on each other in a script, too. I am feeling this patch still needs more careful review from others. Any comments are welcome. Thank you. -- Hiroki # $NetBSD: rc.subr,v 1.67 2006/10/07 11:25:15 elad Exp $ # $FreeBSD: head/etc/rc.subr 272976 2014-10-12 02:42:36Z hrs $ # # Copyright (c) 1997-2004 The NetBSD Foundation, Inc. # All rights reserved. # # This code is derived from software contributed to The NetBSD Foundation # by Luke Mewburn. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # # rc.subr # functions used by various rc scripts # : ${RC_PID:=$$}; export RC_PID # # Operating System dependent/independent variables # if [ -z "${_rc_subr_loaded}" ]; then _rc_subr_loaded="YES" SYSCTL="/sbin/sysctl" SYSCTL_N="${SYSCTL} -n" SYSCTL_W="${SYSCTL}" ID="/usr/bin/id" IDCMD="if [ -x $ID ]; then $ID -un; fi" PS="/bin/ps -ww" JID=`$PS -p $$ -o jid=` # # functions # --------- # list_vars pattern # List vars matching pattern. # list_vars() { set | { while read LINE; do var="${LINE%%=*}" case "$var" in "$LINE"|*[!a-zA-Z0-9_]*) continue ;; $1) echo $var esac done; } } # set_rcvar [var] [defval] [desc] # # Echo or define a rc.conf(5) variable name. Global variable # $rcvars is used. # # If no argument is specified, echo "${name}_enable". # # If only a var is specified, echo "${var}_enable". # # If var and defval are specified, the ${var} is defined as # rc.conf(5) variable and the default value is ${defvar}. An # optional argument $desc can also be specified to add a # description for that. # set_rcvar() { local _var case $# in 0) echo ${name}_enable ;; 1) echo ${1}_enable ;; *) debug "set_rcvar: \$$1=$2 is added" \ " as a rc.conf(5) variable." _var=$1 rcvars="${rcvars# } $_var" eval ${_var}_defval=\"$2\" shift 2 eval ${_var}_desc=\"$*\" ;; esac } # set_rcvar_obsolete oldvar [newvar] [msg] # Define obsolete variable. # Global variable $rcvars_obsolete is used. # set_rcvar_obsolete() { local _var _var=$1 debug "set_rcvar_obsolete: \$$1(old) -> \$$2(new) is defined" rcvars_obsolete="${rcvars_obsolete# } $1" eval ${1}_newvar=\"$2\" shift 2 eval ${_var}_obsolete_msg=\"$*\" } # # force_depend script [rcvar] # Force a service to start. Intended for use by services # to resolve dependency issues. # $1 - filename of script, in /etc/rc.d, to run # $2 - name of the script's rcvar (minus the _enable) # force_depend() { local _depend _dep_rcvar _depend="$1" _dep_rcvar="${2:-$1}_enable" [ -n "$rc_fast" ] && ! checkyesno always_force_depends && checkyesno $_dep_rcvar && return 0 /etc/rc.d/${_depend} forcestatus >/dev/null 2>&1 && return 0 info "${name} depends on ${_depend}, which will be forced to start." if ! /etc/rc.d/${_depend} forcestart; then warn "Unable to force ${_depend}. It may already be running." return 1 fi } # # checkyesno var # Test $1 variable, and warn if not set to YES or NO. # Return 0 if it's "yes" (et al), nonzero otherwise. # checkyesno() { eval _value=\$${1} debug "checkyesno: $1 is set to $_value." case $_value in # "yes", "true", "on", or "1" [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) return 0 ;; # "no", "false", "off", or "0" [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) return 1 ;; *) warn "\$${1} is not set properly - see rc.conf(5)." return 1 ;; esac } # # reverse_list list # print the list in reverse order # reverse_list() { _revlist= for _revfile; do _revlist="$_revfile $_revlist" done echo $_revlist } # stop_boot always # If booting directly to multiuser or $always is enabled, # send SIGTERM to the parent (/etc/rc) to abort the boot. # Otherwise just exit. # stop_boot() { local always case $1 in # "yes", "true", "on", or "1" [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) always=true ;; *) always=false ;; esac if [ "$autoboot" = yes -o "$always" = true ]; then echo "ERROR: ABORTING BOOT (sending SIGTERM to parent)!" kill -TERM ${RC_PID} fi exit 1 } # # mount_critical_filesystems type # Go through the list of critical filesystems as provided in # the rc.conf(5) variable $critical_filesystems_${type}, checking # each one to see if it is mounted, and if it is not, mounting it. # mount_critical_filesystems() { eval _fslist=\$critical_filesystems_${1} for _fs in $_fslist; do mount | ( _ismounted=false while read what _on on _type type; do if [ $on = $_fs ]; then _ismounted=true fi done if $_ismounted; then : else mount $_fs >/dev/null 2>&1 fi ) done } # # check_pidfile pidfile procname [interpreter] # Parses the first line of pidfile for a PID, and ensures # that the process is running and matches procname. # Prints the matching PID upon success, nothing otherwise. # interpreter is optional; see _find_processes() for details. # check_pidfile() { _pidfile=$1 _procname=$2 _interpreter=$3 if [ -z "$_pidfile" -o -z "$_procname" ]; then err 3 'USAGE: check_pidfile pidfile procname [interpreter]' fi if [ ! -f $_pidfile ]; then debug "pid file ($_pidfile): not readable." return fi read _pid _junk < $_pidfile if [ -z "$_pid" ]; then debug "pid file ($_pidfile): no pid in file." return fi _find_processes $_procname ${_interpreter:-.} '-p '"$_pid" } # # check_process procname [interpreter] # Ensures that a process (or processes) named procname is running. # Prints a list of matching PIDs. # interpreter is optional; see _find_processes() for details. # check_process() { _procname=$1 _interpreter=$2 if [ -z "$_procname" ]; then err 3 'USAGE: check_process procname [interpreter]' fi _find_processes $_procname ${_interpreter:-.} '-ax' } # # _find_processes procname interpreter psargs # Search for procname in the output of ps generated by psargs. # Prints the PIDs of any matching processes, space separated. # # If interpreter == ".", check the following variations of procname # against the first word of each command: # procname # `basename procname` # `basename procname` + ":" # "(" + `basename procname` + ")" # "[" + `basename procname` + "]" # # If interpreter != ".", read the first line of procname, remove the # leading #!, normalise whitespace, append procname, and attempt to # match that against each command, either as is, or with extra words # at the end. As an alternative, to deal with interpreted daemons # using perl, the basename of the interpreter plus a colon is also # tried as the prefix to procname. # _find_processes() { if [ $# -ne 3 ]; then err 3 'USAGE: _find_processes procname interpreter psargs' fi _procname=$1 _interpreter=$2 _psargs=$3 _pref= if [ $_interpreter != "." ]; then # an interpreted script _script="${_chroot}${_chroot:+/}$_procname" if [ -r "$_script" ]; then read _interp < $_script # read interpreter name case "$_interp" in \#!*) _interp=${_interp#\#!} # strip #! set -- $_interp case $1 in */bin/env) shift # drop env to get real name ;; esac if [ $_interpreter != $1 ]; then warn "\$command_interpreter $_interpreter != $1" fi ;; *) warn "no shebang line in $_script" set -- $_interpreter ;; esac else warn "cannot read shebang line from $_script" set -- $_interpreter fi _interp="$* $_procname" # cleanup spaces, add _procname _interpbn=${1##*/} _fp_args='_argv' _fp_match='case "$_argv" in ${_interp}|"${_interp} "*|"[${_interpbn}]"|"${_interpbn}: ${_procname}"*)' else # a normal daemon _procnamebn=${_procname##*/} _fp_args='_arg0 _argv' _fp_match='case "$_arg0" in $_procname|$_procnamebn|${_procnamebn}:|"(${_procnamebn})"|"[${_procnamebn}]")' fi _proccheck="\ $PS 2>/dev/null -o pid= -o jid= -o command= $_psargs"' | while read _npid _jid '"$_fp_args"'; do '"$_fp_match"' if [ "$JID" -eq "$_jid" ]; then echo -n "$_pref$_npid"; _pref=" "; fi ;; esac done' # debug "in _find_processes: proccheck is ($_proccheck)." eval $_proccheck } # sort_lite [-b] [-n] [-k POS] [-t SEP] # A lite version of sort(1) (supporting a few options) that can be used # before the real sort(1) is available (e.g., in scripts that run prior # to mountcritremote). Requires only shell built-in functionality. # sort_lite() { local funcname=sort_lite local sort_sep="$IFS" sort_ignore_leading_space= local sort_field=0 sort_strict_fields= sort_numeric= local nitems=0 skip_leading=0 trim= local OPTIND flag while getopts bnk:t: flag; do case "$flag" in b) sort_ignore_leading_space=1 ;; n) sort_numeric=1 sort_ignore_leading_space=1 ;; k) sort_field="${OPTARG%%,*}" ;; # only up to first comma # NB: Unlike sort(1) only one POS allowed t) sort_sep="$OPTARG" if [ ${#sort_sep} -gt 1 ]; then echo "$funcname: multi-character tab \`$sort_sep'" >&2 return 1 fi sort_strict_fields=1 ;; \?) return 1 ;; esac done shift $(( $OPTIND - 1 )) # Create transformation pattern to trim leading text if desired case "$sort_field" in ""|[!0-9]*|*[!0-9.]*) echo "$funcname: invalid sort field \`$sort_field'" >&2 return 1 ;; *.*) skip_leading=${sort_field#*.} sort_field=${sort_field%%.*} while [ ${skip_leading:-0} -gt 1 ] 2> /dev/null; do trim="$trim?" skip_leading=$(( $skip_leading - 1 )) done esac # Copy input to series of local numbered variables # NB: IFS of NULL preserves leading whitespace local LINE while IFS= read -r LINE || [ "$LINE" ]; do nitems=$(( $nitems + 1 )) local src_$nitems="$LINE" done # # Sort numbered locals using insertion sort # local curitem curitem_orig curitem_mod curitem_haskey local dest dest_orig dest_mod dest_haskey local d gt n local i=1 while [ $i -le $nitems ]; do curitem_haskey=1 # Assume sort field (-k POS) exists eval curitem=\"\$src_$i\" curitem_mod="$curitem" # for modified comparison curitem_orig="$curitem" # for original comparison # Trim leading whitespace if desired if [ "$sort_ignore_leading_space" ]; then while case "$curitem_orig" in [$IFS]*) : ;; *) false; esac do curitem_orig="${curitem_orig#?}" done curitem_mod="$curitem_orig" fi # Shift modified comparison value if sort field (-k POS) is > 1 n=$sort_field while [ $n -gt 1 ]; do case "$curitem_mod" in *[$sort_sep]*) # Cut text up-to (and incl.) first separator curitem_mod="${curitem_mod#*[$sort_sep]}" # Skip NULLs unless strict field splitting [ "$sort_strict_fields" ] || [ "${curitem_mod%%[$sort_sep]*}" ] || [ $n -eq 2 ] || continue ;; *) # Asked for a field that doesn't exist curitem_haskey= break esac n=$(( $n - 1 )) done # Trim trailing words if sort field >= 1 [ $sort_field -ge 1 -a "$sort_numeric" ] && curitem_mod="${curitem_mod%%[$sort_sep]*}" # Apply optional trim (-k POS.TRIM) to cut leading characters curitem_mod="${curitem_mod#$trim}" # Determine the type of modified comparison to use initially # NB: Prefer numerical if requested but fallback to standard case "$curitem_mod" in ""|[!0-9]*) # NULL or begins with non-number gt=">" [ "$sort_numeric" ] && curitem_mod=0 ;; *) if [ "$sort_numeric" ]; then gt="-gt" curitem_mod="${curitem_mod%%[!0-9]*}" # NB: trailing non-digits removed # otherwise numeric comparison fails else gt=">" fi esac # If first time through, short-circuit below position-search if [ $i -le 1 ]; then d=0 else d=1 fi # # Find appropriate element position # while [ $d -gt 0 ] do dest_haskey=$curitem_haskey eval dest=\"\$dest_$d\" dest_mod="$dest" # for modified comparison dest_orig="$dest" # for original comparison # Trim leading whitespace if desired if [ "$sort_ignore_leading_space" ]; then while case "$dest_orig" in [$IFS]*) : ;; *) false; esac do dest_orig="${dest_orig#?}" done dest_mod="$dest_orig" fi # Shift modified value if sort field (-k POS) is > 1 n=$sort_field while [ $n -gt 1 ]; do case "$dest_mod" in *[$sort_sep]*) # Cut text up-to (and incl.) 1st sep dest_mod="${dest_mod#*[$sort_sep]}" # Skip NULLs unless strict fields [ "$sort_strict_fields" ] || [ "${dest_mod%%[$sort_sep]*}" ] || [ $n -eq 2 ] || continue ;; *) # Asked for a field that doesn't exist dest_haskey= break esac n=$(( $n - 1 )) done # Trim trailing words if sort field >= 1 [ $sort_field -ge 1 -a "$sort_numeric" ] && dest_mod="${dest_mod%%[$sort_sep]*}" # Apply optional trim (-k POS.TRIM), cut leading chars dest_mod="${dest_mod#$trim}" # Determine type of modified comparison to use # NB: Prefer numerical if requested, fallback to std case "$dest_mod" in ""|[!0-9]*) # NULL or begins with non-number gt=">" [ "$sort_numeric" ] && dest_mod=0 ;; *) if [ "$sort_numeric" ]; then gt="-gt" dest_mod="${dest_mod%%[!0-9]*}" # NB: kill trailing non-digits # for numeric comparison safety else gt=">" fi esac # Break if we've found the proper element position if [ "$curitem_haskey" -a "$dest_haskey" ]; then if [ "$dest_mod" = "$curitem_mod" ]; then [ "$dest_orig" ">" "$curitem_orig" ] && break elif [ "$dest_mod" $gt "$curitem_mod" ] \ 2> /dev/null then break fi else [ "$dest_orig" ">" "$curitem_orig" ] && break fi # Break if we've hit the end [ $d -ge $i ] && break d=$(( $d + 1 )) done # Shift remaining positions forward, making room for new item n=$i while [ $n -ge $d ]; do # Shift destination item forward one placement eval dest_$(( $n + 1 ))=\"\$dest_$n\" n=$(( $n - 1 )) done # Place the element if [ $i -eq 1 ]; then local dest_1="$curitem" else local dest_$d="$curitem" fi i=$(( $i + 1 )) done # Print sorted results d=1 while [ $d -le $nitems ]; do eval echo \"\$dest_$d\" d=$(( $d + 1 )) done } # # wait_for_pids pid [pid ...] # spins until none of the pids exist # wait_for_pids() { local _list _prefix _nlist _j _list="$_at_" if [ -z "$_list" ]; then return fi _prefix= while true; do _nlist=""; for _j in $_list; do if kill -0 $_j 2>/dev/null; then _nlist="${_nlist}${_nlist:+ }$_j" [ -n "$_prefix" ] && sleep 1 fi done if [ -z "$_nlist" ]; then break fi _list=$_nlist echo -n ${_prefix:-"Waiting for PIDS: "}$_list _prefix=", " pwait $_list 2>/dev/null done if [ -n "$_prefix" ]; then echo "." fi } # # get_pidfile_from_conf string file # # Takes a string to search for in the specified file. # Ignores lines with traditional comment characters. # # Example: # # if get_pidfile_from_conf string file; then # pidfile="$_pidfile_from_conf" # else # pidfile='appropriate default' # fi # get_pidfile_from_conf() { if [ -z "$1" -o -z "$2" ]; then err 3 "USAGE: get_pidfile_from_conf string file ($name)" fi local string file line string="$1" ; file="$2" if [ ! -s "$file" ]; then err 3 "get_pidfile_from_conf: $file does not exist ($name)" fi while read line; do case "$line" in *[#\;]*${string}*) continue ;; *${string}*) break ;; esac done < $file if [ -n "$line" ]; then line=${line#*/} _pidfile_from_conf="/${line%%[\"\;]*}" else return 1 fi } # # check_startmsgs # If rc_quiet is set (usually as a result of using faststart at # boot time) check if rc_startmsgs is enabled. # check_startmsgs() { if [ -n "$rc_quiet" ]; then checkyesno rc_startmsgs else return 0 fi } # # run_rc_command argument # Search for argument in the list of supported commands, which is: # "start stop restart rcvar status poll ${extra_commands}" # If there's a match, run ${argument}_cmd or the default method # (see below). # _run_rc_command0() is the main routine and run_rc_command() is # a wrapper to handle multiple instances. # # # If argument has a given prefix, then change the operation as follows: # Prefix Operation # ------ --------- # fast Skip the pid check, and set rc_fast=yes, rc_quiet=yes # force Set ${rcvar} to YES, and set rc_force=yes # one Set ${rcvar} to YES # quiet Don't output some diagnostics, and set rc_quiet=yes # # The following globals are used: # # Name Needed Purpose # ---- ------ ------- # name y Name of script. # # command n Full path to command. # Not needed if ${rc_arg}_cmd is set for # each keyword. # # command_args n Optional args/shell directives for command. # # command_interpreter n If not empty, command is interpreted, so # call check_{pidfile,process}() appropriately. # # desc n Description of script. # # extra_commands n List of extra commands supported. # # pidfile n If set, use check_pidfile $pidfile $command, # otherwise use check_process $command. # In either case, only check if $command is set. # # procname n Process name to check for instead of $command. # # rcvar n This is checked with checkyesno to determine # if the action should be run. # # ${name}_program n Full path to command. # Meant to be used in /etc/rc.conf to override # ${command}. # # ${name}_chroot n Directory to chroot to before running ${command} # Requires /usr to be mounted. # # ${name}_chdir n Directory to cd to before running ${command} # (if not using ${name}_chroot). # # ${name}_flags n Arguments to call ${command} with. # NOTE: $flags from the parent environment # can be used to override this. # # ${name}_env n Environment variables to run ${command} with. # # ${name}_fib n Routing table number to run ${command} with. # # ${name}_nice n Nice level to run ${command} at. # # ${name}_pidfile n This to be used in /etc/rc.conf to override # ${pidfile}. # # ${name}_user n User to run ${command} as, using su(1) if not # using ${name}_chroot. # Requires /usr to be mounted. # # ${name}_group n Group to run chrooted ${command} as. # Requires /usr to be mounted. # # ${name}_groups n Comma separated list of supplementary groups # to run the chrooted ${command} with. # Requires /usr to be mounted. # # ${name}_prepend n Command added before ${command}. # # ${rc_arg}_cmd n If set, use this as the method when invoked; # Otherwise, use default command (see below) # # ${rc_arg}_precmd n If set, run just before performing the # ${rc_arg}_cmd method in the default # operation (i.e, after checking for required # bits and process (non)existence). # If this completes with a non-zero exit code, # don't run ${rc_arg}_cmd. # # ${rc_arg}_postcmd n If set, run just after performing the # ${rc_arg}_cmd method, if that method # returned a zero exit code. # # required_dirs n If set, check for the existence of the given # directories before running a (re)start command. # # required_files n If set, check for the readability of the given # files before running a (re)start command. # # required_modules n If set, ensure the given kernel modules are # loaded before running a (re)start command. # The check and possible loads are actually # done after start_precmd so that the modules # aren't loaded in vain, should the precmd # return a non-zero status to indicate a error. # If a word in the list looks like "foo:bar", # "foo" is the KLD file name and "bar" is the # module name. If a word looks like "foo~bar", # "foo" is the KLD file name and "bar" is a # egrep(1) pattern matching the module name. # Otherwise the module name is assumed to be # the same as the KLD file name, which is most # common. See load_kld(). # # required_vars n If set, perform checkyesno on each of the # listed variables before running the default # (re)start command. # # Default behaviour for a given argument, if no override method is # provided: # # Argument Default behaviour # -------- ----------------- # start if !running && checkyesno ${rcvar} # ${command} # # stop if ${pidfile} # rc_pid=$(check_pidfile $pidfile $command) # else # rc_pid=$(check_process $command) # kill $sig_stop $rc_pid # wait_for_pids $rc_pid # ($sig_stop defaults to TERM.) # # reload Similar to stop, except use $sig_reload instead, # and doesn't wait_for_pids. # $sig_reload defaults to HUP. # Note that `reload' isn't provided by default, # it should be enabled via $extra_commands. # # restart Run `stop' then `start'. # # status Show if ${command} is running, etc. # # poll Wait for ${command} to exit. # # rcvar Display what rc.conf variable is used (if any). # # enabled Return true if the service is enabled. # # Variables available to methods, and after run_rc_command() has # completed: # # Variable Purpose # -------- ------- # rc_arg Argument to command, after fast/force/one processing # performed # # rc_flags Flags to start the default command with. # Defaults to ${name}_flags, unless overridden # by $flags from the environment. # This variable may be changed by the precmd method. # # rc_pid PID of command (if appropriate) # # rc_fast Not empty if "fast" was provided (q.v.) # # rc_force Not empty if "force" was provided (q.v.) # # rc_quiet Not empty if "quiet" was provided # # run_rc_command() { local _act _instances _name _desc _rcvar _act=$1 shift eval _instances=\$${name}_instances # Check if instance is specified, e.g. "start:instance,...". case ${_act%:*} in $_act) ;; # no instance specified *) _instances=$(echo ${_act#*:} | tr "," " ") _act=${_act%:*} ;; esac # Use reverse order for stop. case $_act in *stop) _instances=$(reverse_list $_instances) ;; esac case $_instances in "") _name=$name _inst= _run_rc_command0 $_act "$_at_" ;; *) _name=$name _desc=$desc _rcvar=$rcvar for _inst in $_instances; do # Use a subshell to preserve variables. ( name=${_name}_$_inst eval desc=\"$_desc\${${name}_desc+:\ }\$${name}_desc\" rcvar=${_rcvar%_enable}_${_inst}_enable _run_rc_command0 $_act "$_at_" ) done ;; esac } getnameparam() { eval echo \${$1_$_inst${_inst:+_}$2-\$$1_$2} } _run_rc_command0() { _return=0 rc_arg=$1 if [ -z "$name" ]; then err 3 'run_rc_command: $name is not set.' fi # Don't repeat the first argument when passing additional command- # line arguments to the command subroutines. # shift 1 rc_extra_args="$*" _rc_prefix= case "$rc_arg" in fast*) # "fast" prefix; don't check pid rc_arg=${rc_arg#fast} rc_fast=yes rc_quiet=yes ;; force*) # "force" prefix; always run rc_force=yes _rc_prefix=force rc_arg=${rc_arg#${_rc_prefix}} if [ -n "${rcvar}" ]; then eval ${rcvar}=YES fi ;; one*) # "one" prefix; set ${rcvar}=yes _rc_prefix=one rc_arg=${rc_arg#${_rc_prefix}} if [ -n "${rcvar}" ]; then eval ${rcvar}=YES fi ;; quiet*) # "quiet" prefix; omit some messages _rc_prefix=quiet rc_arg=${rc_arg#${_rc_prefix}} rc_quiet=yes ;; esac if [ -z "$command" ]; then command=$(getnameparam $_name program) fi if [ -z "$pidfile" ]; then pidfile=$(getnameparam $_name pidfile) fi _keywords="start stop restart rcvar enabled $extra_commands" rc_pid= _pidcmd= _procname=${procname:-${command}} # setup pid check command if [ -n "$_procname" ]; then if [ -n "$pidfile" ]; then _pidcmd='rc_pid=$(check_pidfile '"$pidfile $_procname $command_interpreter"')' else _pidcmd='rc_pid=$(check_process '"$_procname $command_interpreter"')' fi if [ -n "$_pidcmd" ]; then _keywords="${_keywords} status poll" fi fi if [ -z "$rc_arg" ]; then rc_usage $_keywords fi if [ "$rc_arg" = "enabled" ] ; then checkyesno ${rcvar} return $? fi if [ -n "$flags" ]; then # allow override from environment rc_flags=$flags else rc_flags=$(getnameparam $_name flags) fi _chdir=$(getnameparam $_name chdir) _chroot=$(getnameparam $_name chroot) _nice=$(getnameparam $_name nice) _user=$(getnameparam $_name user) _group=$(getnameparam $_name group) _groups=$(getnameparam $_name groups) _env=$(getnameparam $_name env) _prepend=$(getnameparam $_name prepend) if [ -n "$_user" ]; then # unset $_user if running as that user if [ "$_user" = "$(eval $IDCMD)" ]; then unset _user fi fi [ -z "$autoboot" ] && eval $_pidcmd # determine the pid if necessary for _elem in $_keywords; do if [ "$_elem" != "$rc_arg" ]; then continue fi # if ${rcvar} is set, $1 is not "rcvar" # and ${rc_pid} is not set, then run # checkyesno ${rcvar} # and return if that failed # if [ -n "${rcvar}" -a "$rc_arg" != "rcvar" -a "$rc_arg" != "stop" ] || [ -n "${rcvar}" -a "$rc_arg" = "stop" -a -z "${rc_pid}" ]; then if ! checkyesno ${rcvar}; then if [ -n "${rc_quiet}" ]; then return 0 fi echo -n "Cannot '${rc_arg}' $name. Set ${rcvar} to " echo -n "YES in /etc/rc.conf or use 'one${rc_arg}' " echo "instead of '${rc_arg}'." return 0 fi fi # if there's a custom ${XXX_cmd}, # run that instead of the default # _cmd=$(getnameparam $rc_arg cmd) _precmd=$(getnameparam $rc_arg precmd) _postcmd=$(getnameparam $rc_arg postcmd) if [ -n "$_cmd" ]; then _run_rc_precmd || return 1 _run_rc_doit "$_cmd $rc_extra_args" || return 1 _run_rc_postcmd return $_return fi case "$rc_arg" in # default operations... status) _run_rc_precmd || return 1 if [ -n "$rc_pid" ]; then echo "${name} is running as pid $rc_pid." else echo "${name} is not running." return 1 fi _run_rc_postcmd ;; start) if [ -z "$rc_fast" -a -n "$rc_pid" ]; then if [ -z "$rc_quiet" ]; then echo 1>&2 "${name} already running? " \ "(pid=$rc_pid)." fi return 1 fi if [ ! -x "${_chroot}${_chroot:+/}${command}" ]; then warn "run_rc_command: cannot run $command" return 1 fi if ! _run_rc_precmd; then warn "failed precmd routine for ${name}" return 1 fi # setup the full command to run # check_startmsgs && echo "Starting ${name}." if [ -n "$_chroot" ]; then _doit="\ ${_nice:+nice -n $_nice }\ ${_fib:+setfib -F $_fib }\ ${_env:+env $_env }\ chroot ${_user:+-u $_user }${_group:+-g $_group }${_groups:+-G $_groups }\ $_chroot $command $rc_flags $command_args" else _doit="\ ${_chdir:+cd $_chdir && }\ ${_fib:+setfib -F $_fib }\ ${_env:+env $_env }\ $command $rc_flags $command_args" if [ -n "$_user" ]; then _doit="su -m $_user -c 'sh -c \"$_doit\"'" fi if [ -n "$_nice" ]; then if [ -z "$_user" ]; then _doit="sh -c \"$_doit\"" fi _doit="nice -n $_nice $_doit" fi if [ -n "$_prepend" ]; then _doit="$_prepend $_doit" fi fi # run the full command # if ! _run_rc_doit "$_doit"; then warn "failed to start ${name}" return 1 fi # finally, run postcmd # _run_rc_postcmd ;; stop) if [ -z "$rc_pid" ]; then [ -n "$rc_fast" ] && return 0 _run_rc_notrunning return 1 fi _run_rc_precmd || return 1 # send the signal to stop # echo "Stopping ${name}." _doit=$(_run_rc_killcmd "${sig_stop:-TERM}") _run_rc_doit "$_doit" || return 1 # wait for the command to exit, # and run postcmd. wait_for_pids $rc_pid _run_rc_postcmd ;; reload) if [ -z "$rc_pid" ]; then _run_rc_notrunning return 1 fi _run_rc_precmd || return 1 _doit=$(_run_rc_killcmd "${sig_reload:-HUP}") _run_rc_doit "$_doit" || return 1 _run_rc_postcmd ;; restart) # prevent restart being called more # than once by any given script # if ${_rc_restart_done:-false}; then return 0 fi _rc_restart_done=true _run_rc_precmd || return 1 # run those in a subshell to keep global variables ( run_rc_command ${_rc_prefix}stop $rc_extra_args ) ( run_rc_command ${_rc_prefix}start $rc_extra_args ) _return=$? [ $_return -ne 0 ] && [ -z "$rc_force" ] && return 1 _run_rc_postcmd ;; poll) _run_rc_precmd || return 1 if [ -n "$rc_pid" ]; then wait_for_pids $rc_pid fi _run_rc_postcmd ;; rcvar) echo -n "# $name" if [ -n "$desc" ]; then echo " : $desc" else echo "" fi echo "#" # Display variables. for _v in $(getinstlist $_name "$_inst" $rcvar $rcvars); do if [ -z "$_v" ]; then continue fi eval _desc=\$${_v}_desc eval _defval=\$${_v}_defval eval _val=\$$_v case $_defval in $_val) _e= _m= ;; *) _e=" # (default: \"$_defval\")" _m="(*)" ;; esac echo "# $_v$_m${_desc+: }$_desc" eval echo \"$_v=\\\"\$$_v\\\"\" \$_e done echo "" ;; *) rc_usage $_keywords ;; esac return $_return done echo 1>&2 "$0: unknown directive '$rc_arg'." rc_usage $_keywords # not reached } # # Helper functions for run_rc_command: common code. # They use such global variables besides the exported rc_* ones: # # name R/W # ------------------ # _precmd R # _postcmd R # _return W # _run_rc_precmd() { check_required_before "$rc_arg" || return 1 if [ -n "$_precmd" ]; then debug "run_rc_command: ${rc_arg}_precmd: $_precmd $rc_extra_args" eval "$_precmd $rc_extra_args" _return=$? # If precmd failed and force isn't set, request exit. if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then return 1 fi fi check_required_after "$rc_arg" || return 1 return 0 } _run_rc_postcmd() { if [ -n "$_postcmd" ]; then debug "run_rc_command: ${rc_arg}_postcmd: $_postcmd $rc_extra_args" eval "$_postcmd $rc_extra_args" _return=$? fi return 0 } _run_rc_doit() { debug "run_rc_command: doit: $*" eval "$_at_" _return=$? # If command failed and force isn't set, request exit. if [ $_return -ne 0 ] && [ -z "$rc_force" ]; then return 1 fi return 0 } _run_rc_notrunning() { local _pidmsg if [ -n "$pidfile" ]; then _pidmsg=" (check $pidfile)." else _pidmsg= fi echo 1>&2 "${name} not running?${_pidmsg}" } _run_rc_killcmd() { local _cmd _cmd="kill -$1 $rc_pid" if [ -n "$_user" ]; then _cmd="su -m ${_user} -c 'sh -c \"${_cmd}\"'" fi echo "$_cmd" } # # run_rc_script file arg # Start the script `file' with `arg', and correctly handle the # return value from the script. # If `file' ends with `.sh', it's sourced into the current environment # when $rc_fast_and_loose is set, otherwise it is run as a child process. # If `file' appears to be a backup or scratch file, ignore it. # Otherwise if it is executable run as a child process. # run_rc_script() { _file=$1 _arg=$2 if [ -z "$_file" -o -z "$_arg" ]; then err 3 'USAGE: run_rc_script file arg' fi unset name command command_args command_interpreter \ extra_commands pidfile procname \ rcvar rcvars rcvars_obsolete required_dirs required_files \ required_vars eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd case "$_file" in /etc/rc.d/*.sh) # no longer allowed in the base warn "Ignoring old-style startup script $_file" ;; *[~#]|*.OLD|*.bak|*.orig|*,v) # scratch file; skip warn "Ignoring scratch file $_file" ;; *) # run in subshell if [ -x $_file ]; then if [ -n "$rc_fast_and_loose" ]; then set $_arg; . $_file else ( trap "echo Script $_file interrupted >&2 ; kill -QUIT $$" 3 trap "echo Script $_file interrupted >&2 ; exit 1" 2 trap "echo Script $_file running >&2" 29 set $_arg; . $_file ) fi fi ;; esac } # # uniqlist var list # Put a list into $var with duplicate words removed. # uniqlist() { local _uv _v _uv= for _v in "$_at_"; do case $_uv in $_v|$_v\ *|*\ $_v|*\ $_v\ *) ;; *) _uv="${_uv# }${_uv:+ }$_v" ;; esac done echo "$_uv" } # # createinstlist() name inst list # Generate a variable list with the instance name. # createinstlist() { local _name _inst _v _name=$1 _inst=$2 shift 2 for _v in $(uniqlist "$_at_"); do echo "${_name}_${_inst}${_inst+_}${_v#${_name}_}" done } # # getinstlist() name inst list # Get a variable list only with the instance name. # getinstlist() { local _name _inst _v _l _name=$1 _inst=$2 shift 2 _l= for _v in $(uniqlist "$_at_"); do case $_v in ${_name}${_inst:+_}${_inst}_*) _l="${_l# }${_l:+ }$_v" ;; esac done uniqlist $_l } # # load_rc_config name # Source in the configuration file for a given name. # load_rc_config0() is the main routine and load_rc_config() is # a wrapper to handle multiple instances. # load_rc_config() { local _instances _inst _name _rcvars _defval _desc _k _v _ul # XXX: normalization ltr "$name" "-" "_" name ltr "$1" "-" "_" _name _load_rc_config0 $_name eval _instances=\$${_name}_instances _rcvars=$rcvars for _inst in $_instances; do # Set default values for ${_name}_$_inst. for _k in $(uniqlist $_rcvars); do # _k includes _name eval _defval=\${${_k}_defval} eval _desc=\${${_k}_desc} set_rcvar $(createinstlist $_name $_inst $_k) \ "$_defval" "$_desc" done for _k in $_rc_namevarlist; do if [ "$_k" = "instances" ]; then continue fi _k=${_name}_$_k # _k includes _name eval _defval=\${${_k}_defval} eval _desc=\${${_k}_desc} if [ -n "$_defval" ]; then set_rcvar $(createinstlist $_name $_inst $_k) \ "$_defval" "$_desc" fi done _load_rc_config0 ${_name}_$_inst done } _load_rc_config0() { local _name _rcvar_val _var _defval _v _msg _new _d _name=$1 if [ -z "$_name" ]; then err 3 'USAGE: load_rc_config name' fi if ${_rc_conf_loaded:-false}; then : else if [ -r /etc/defaults/rc.conf ]; then debug "Sourcing /etc/defaults/rc.conf" . /etc/defaults/rc.conf source_rc_confs elif [ -r /etc/rc.conf ]; then debug "Sourcing /etc/rc.conf (/etc/defaults/rc.conf doesn't exist)." . /etc/rc.conf fi _rc_conf_loaded=true fi for _d in /etc ${local_startup%*/rc.d}; do if [ -f ${_d}/rc.conf.d/"$_name" ]; then debug "Sourcing ${_d}/rc.conf.d/$_name" . ${_d}/rc.conf.d/"$_name" elif [ -d ${_d}/rc.conf.d/"$_name" ] ; then local _rc for _rc in ${_d}/rc.conf.d/"$_name"/* ; do if [ -f "$_rc" ] ; then debug "Sourcing $_rc" . "$_rc" fi done fi done # Set defaults if defined. for _var in $rcvar $rcvars; do eval _defval=\$${_var}_defval if [ -n "$_defval" ]; then eval : \${$_var:=\$${_var}_defval} fi done # check obsolete rc.conf variables for _var in $rcvars_obsolete; do eval _v=\$$_var eval _msg=\$${_var}_obsolete_msg eval _new=\$${_var}_newvar case $_v in "") ;; *) if [ -z "$_new" ]; then _msg="Ignored." else eval $_new=\"\$$_var\" if [ -z "$_msg" ]; then _msg="Use \$$_new instead." fi fi warn "\$$_var is obsolete. $_msg" ;; esac done } # # load_rc_config_var name var # Read the rc.conf(5) var for name and set in the # current shell, using load_rc_config in a subshell to prevent # unwanted side effects from other variable assignments. # load_rc_config_var() { if [ $# -ne 2 ]; then err 3 'USAGE: load_rc_config_var name var' fi eval $(eval '( load_rc_config '$1' >/dev/null; if [ -n "${'$2'}" -o "${'$2'-UNSET}" != "UNSET" ]; then echo '$2'=\'\''${'$2'}\'\''; fi )' ) } # # rc_usage commands # Print a usage string for $0, with `commands' being a list of # valid commands. # rc_usage() { echo -n 1>&2 "Usage: $0 [fast|force|one|quiet](" _sep= for _elem; do echo -n 1>&2 "$_sep$_elem" _sep="|" done echo 1>&2 ")" exit 1 } # # err exitval message # Display message to stderr and log to the syslog, and exit with exitval. # err() { exitval=$1 shift if [ -x /usr/bin/logger ]; then logger "$0: ERROR: $*" fi echo 1>&2 "$0: ERROR: $*" exit $exitval } # # warn message # Display message to stderr and log to the syslog. # warn() { if [ -x /usr/bin/logger ]; then logger "$0: WARNING: $*" fi echo 1>&2 "$0: WARNING: $*" } # # info message # Display informational message to stdout and log to syslog. # info() { case ${rc_info} in [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) if [ -x /usr/bin/logger ]; then logger "$0: INFO: $*" fi echo "$0: INFO: $*" ;; esac } # # debug message # If debugging is enabled in rc.conf output message to stderr. # BEWARE that you don't call any subroutine that itself calls this # function. # debug() { case ${rc_debug} in [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) if [ -x /usr/bin/logger ]; then logger "$0: DEBUG: $*" fi echo 1>&2 "$0: DEBUG: $*" ;; esac } # # backup_file action file cur backup # Make a backup copy of `file' into `cur', and save the previous # version of `cur' as `backup' or use rcs for archiving. # # This routine checks the value of the backup_uses_rcs variable, # which can be either YES or NO. # # The `action' keyword can be one of the following: # # add `file' is now being backed up (and is possibly # being reentered into the backups system). `cur' # is created and RCS files, if necessary, are # created as well. # # update `file' has changed and needs to be backed up. # If `cur' exists, it is copied to to `back' or # checked into RCS (if the repository file is old), # and then `file' is copied to `cur'. Another RCS # check in done here if RCS is being used. # # remove `file' is no longer being tracked by the backups # system. If RCS is not being used, `cur' is moved # to `back', otherwise an empty file is checked in, # and then `cur' is removed. # # backup_file() { _action=$1 _file=$2 _cur=$3 _back=$4 if checkyesno backup_uses_rcs; then _msg0="backup archive" _msg1="update" # ensure that history file is not locked if [ -f $_cur,v ]; then rcs -q -u -U -M $_cur fi # ensure after switching to rcs that the # current backup is not lost if [ -f $_cur ]; then # no archive, or current newer than archive if [ ! -f $_cur,v -o $_cur -nt $_cur,v ]; then ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur rcs -q -kb -U $_cur co -q -f -u $_cur fi fi case $_action in add|update) cp -p $_file $_cur ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur rcs -q -kb -U $_cur co -q -f -u $_cur chown root:wheel $_cur $_cur,v ;; remove) cp /dev/null $_cur ci -q -f -u -t-"$_msg0" -m"$_msg1" $_cur rcs -q -kb -U $_cur chown root:wheel $_cur $_cur,v rm $_cur ;; esac else case $_action in add|update) if [ -f $_cur ]; then cp -p $_cur $_back fi cp -p $_file $_cur chown root:wheel $_cur ;; remove) mv -f $_cur $_back ;; esac fi } # make_symlink src link # Make a symbolic link 'link' to src from basedir. If the # directory in which link is to be created does not exist # a warning will be displayed and an error will be returned. # Returns 0 on success, 1 otherwise. # make_symlink() { local src link linkdir _me src="$1" link="$2" linkdir="`dirname $link`" _me="make_symlink()" if [ -z "$src" -o -z "$link" ]; then warn "$_me: requires two arguments." return 1 fi if [ ! -d "$linkdir" ]; then warn "$_me: the directory $linkdir does not exist." return 1 fi if ! ln -sf $src $link; then warn "$_me: unable to make a symbolic link from $link to $src" return 1 fi return 0 } # devfs_rulesets_from_file file # Reads a set of devfs commands from file, and creates # the specified rulesets with their rules. Returns non-zero # if there was an error. # devfs_rulesets_from_file() { local file _err _me _opts file="$1" _me="devfs_rulesets_from_file" _err=0 if [ -z "$file" ]; then warn "$_me: you must specify a file" return 1 fi if [ ! -e "$file" ]; then debug "$_me: no such file ($file)" return 0 fi # Disable globbing so that the rule patterns are not expanded # by accident with matching filesystem entries. _opts=$-; set -f debug "reading rulesets from file ($file)" { while read line do case $line in \#*) continue ;; \[*\]*) rulenum=`expr "$line" : "\[.*=\([0-9]*\)\]"` if [ -z "$rulenum" ]; then warn "$_me: cannot extract rule number ($line)" _err=1 break fi rulename=`expr "$line" : "\[\(.*\)=[0-9]*\]"` if [ -z "$rulename" ]; then warn "$_me: cannot extract rule name ($line)" _err=1 break; fi eval $rulename=\$rulenum debug "found ruleset: $rulename=$rulenum" if ! /sbin/devfs rule -s $rulenum delset; then _err=1 break fi ;; *) rulecmd="${line%%"\#*"}" # evaluate the command incase it includes # other rules if [ -n "$rulecmd" ]; then debug "adding rule ($rulecmd)" if ! eval /sbin/devfs rule -s $rulenum $rulecmd then _err=1 break fi fi ;; esac if [ $_err -ne 0 ]; then debug "error in $_me" break fi done } < $file case $_opts in *f*) ;; *) set +f ;; esac return $_err } # devfs_init_rulesets # Initializes rulesets from configuration files. Returns # non-zero if there was an error. # devfs_init_rulesets() { local file _me _me="devfs_init_rulesets" # Go through this only once if [ -n "$devfs_rulesets_init" ]; then debug "$_me: devfs rulesets already initialized" return fi for file in $devfs_rulesets; do if ! devfs_rulesets_from_file $file; then warn "$_me: could not read rules from $file" return 1 fi done devfs_rulesets_init=1 debug "$_me: devfs rulesets initialized" return 0 } # devfs_set_ruleset ruleset [dir] # Sets the default ruleset of dir to ruleset. The ruleset argument # must be a ruleset name as specified in devfs.rules(5) file. # Returns non-zero if it could not set it successfully. # devfs_set_ruleset() { local devdir rs _me [ -n "$1" ] && eval rs=\$$1 || rs= [ -n "$2" ] && devdir="-m "$2"" || devdir= _me="devfs_set_ruleset" if [ -z "$rs" ]; then warn "$_me: you must specify a ruleset number" return 1 fi debug "$_me: setting ruleset ($rs) on mount-point (${devdir#-m })" if ! /sbin/devfs $devdir ruleset $rs; then warn "$_me: unable to set ruleset $rs to ${devdir#-m }" return 1 fi return 0 } # devfs_apply_ruleset ruleset [dir] # Apply ruleset number $ruleset to the devfs mountpoint $dir. # The ruleset argument must be a ruleset name as specified # in a devfs.rules(5) file. Returns 0 on success or non-zero # if it could not apply the ruleset. # devfs_apply_ruleset() { local devdir rs _me [ -n "$1" ] && eval rs=\$$1 || rs= [ -n "$2" ] && devdir="-m "$2"" || devdir= _me="devfs_apply_ruleset" if [ -z "$rs" ]; then warn "$_me: you must specify a ruleset" return 1 fi debug "$_me: applying ruleset ($rs) to mount-point (${devdir#-m })" if ! /sbin/devfs $devdir rule -s $rs applyset; then warn "$_me: unable to apply ruleset $rs to ${devdir#-m }" return 1 fi return 0 } # devfs_domount dir [ruleset] # Mount devfs on dir. If ruleset is specified it is set # on the mount-point. It must also be a ruleset name as specified # in a devfs.rules(5) file. Returns 0 on success. # devfs_domount() { local devdir rs _me devdir="$1" [ -n "$2" ] && rs=$2 || rs= _me="devfs_domount()" if [ -z "$devdir" ]; then warn "$_me: you must specify a mount-point" return 1 fi debug "$_me: mount-point is ($devdir), ruleset is ($rs)" if ! mount -t devfs dev "$devdir"; then warn "$_me: Unable to mount devfs on $devdir" return 1 fi if [ -n "$rs" ]; then devfs_init_rulesets devfs_set_ruleset $rs $devdir devfs -m $devdir rule applyset fi return 0 } # Provide a function for normalizing the mounting of memory # filesystems. This should allow the rest of the code here to remain # as close as possible between 5-current and 4-stable. # $1 = size # $2 = mount point # $3 = (optional) extra mdmfs flags mount_md() { if [ -n "$3" ]; then flags="$3" fi /sbin/mdmfs $flags -s $1 md $2 } # Code common to scripts that need to load a kernel module # if it isn't in the kernel yet. Syntax: # load_kld [-e regex] [-m module] file # where -e or -m chooses the way to check if the module # is already loaded: # regex is egrep'd in the output from `kldstat -v', # module is passed to `kldstat -m'. # The default way is as though `-m file' were specified. load_kld() { local _loaded _mod _opt _re while getopts "e:m:" _opt; do case "$_opt" in e) _re="$OPTARG" ;; m) _mod="$OPTARG" ;; *) err 3 'USAGE: load_kld [-e regex] [-m module] file' ;; esac done shift $(($OPTIND - 1)) if [ $# -ne 1 ]; then err 3 'USAGE: load_kld [-e regex] [-m module] file' fi _mod=${_mod:-$1} _loaded=false if [ -n "$_re" ]; then if kldstat -v | egrep -q -e "$_re"; then _loaded=true fi else if kldstat -q -m "$_mod"; then _loaded=true fi fi if ! $_loaded; then if ! kldload "$1"; then warn "Unable to load kernel module $1" return 1 else info "$1 kernel module loaded." fi else debug "load_kld: $1 kernel module already loaded." fi return 0 } # ltr str src dst [var] # Change every $src in $str to $dst. # Useful when /usr is not yet mounted and we cannot use tr(1), sed(1) nor # awk(1). If var is non-NULL, set it to the result. ltr() { local _str _src _dst _out _com _var _str="$1" _src="$2" _dst="$3" _var="$4" _out="" local IFS="${_src}" for _com in ${_str}; do if [ -z "${_out}" ]; then _out="${_com}" else _out="${_out}${_dst}${_com}" fi done if [ -n "${_var}" ]; then setvar "${_var}" "${_out}" else echo "${_out}" fi } # Creates a list of providers for GELI encryption. geli_make_list() { local devices devices2 local provider mountpoint type options rest # Create list of GELI providers from fstab. while read provider mountpoint type options rest ; do case ":${options}" in :*noauto*) noauto=yes ;; *) noauto=no ;; esac case ":${provider}" in :#*) continue ;; *.eli) # Skip swap devices. if [ "${type}" = "swap" -o "${options}" = "sw" -o "${noauto}" = "yes" ]; then continue fi devices="${devices} ${provider}" ;; esac done < /etc/fstab # Append providers from geli_devices. devices="${devices} ${geli_devices}" for provider in ${devices}; do provider=${provider%.eli} provider=${provider#/dev/} devices2="${devices2} ${provider}" done echo ${devices2} } # Find scripts in local_startup directories that use the old syntax # find_local_scripts_old() { zlist='' slist='' for dir in ${local_startup}; do if [ -d "${dir}" ]; then for file in ${dir}/[0-9]*.sh; do grep '^# PROVIDE:' $file >/dev/null 2>&1 && continue zlist="$zlist $file" done for file in ${dir}/[!0-9]*.sh; do grep '^# PROVIDE:' $file >/dev/null 2>&1 && continue slist="$slist $file" done fi done } find_local_scripts_new() { local_rc='' for dir in ${local_startup}; do if [ -d "${dir}" ]; then for file in `grep -l '^# PROVIDE:' ${dir}/* 2>/dev/null`; do case "$file" in *.sample) ;; *) if [ -x "$file" ]; then local_rc="${local_rc} ${file}" fi ;; esac done fi done } # check_required_{before|after} command # Check for things required by the command before and after its precmd, # respectively. The two separate functions are needed because some # conditions should prevent precmd from being run while other things # depend on precmd having already been run. # check_required_before() { local _f case "$1" in start) for _f in $required_vars; do if ! checkyesno $_f; then warn "\$${_f} is not enabled." if [ -z "$rc_force" ]; then return 1 fi fi done for _f in $required_dirs; do if [ ! -d "${_f}/." ]; then warn "${_f} is not a directory." if [ -z "$rc_force" ]; then return 1 fi fi done for _f in $required_files; do if [ ! -r "${_f}" ]; then warn "${_f} is not readable." if [ -z "$rc_force" ]; then return 1 fi fi done ;; esac return 0 } check_required_after() { local _f _args case "$1" in start) for _f in $required_modules; do case "${_f}" in *~*) _args="-e ${_f#*~} ${_f%%~*}" ;; *:*) _args="-m ${_f#*:} ${_f%%:*}" ;; *) _args="${_f}" ;; esac if ! load_kld ${_args}; then if [ -z "$rc_force" ]; then return 1 fi fi done ;; esac return 0 } # check_jail mib # Return true if security.jail.$mib exists and set to 1. check_jail() { local _mib _v _mib=$1 if _v=$(${SYSCTL_N} "security.jail.$_mib" 2> /dev/null); then case $_v in 1) return 0;; esac fi return 1 } # check_kern_features mib # Return existence of kern.features.* sysctl MIB as true or # false. The result will be cached in $_rc_cache_kern_features_ # namespace. "0" means the kern.features.X exists. check_kern_features() { local _v [ -n "$1" ] || return 1; eval _v=\$_rc_cache_kern_features_$1 [ -n "$_v" ] && return "$_v"; if ${SYSCTL_N} kern.features.$1 > /dev/null 2>&1; then eval _rc_cache_kern_features_$1=0 return 0 else eval _rc_cache_kern_features_$1=1 return 1 fi } # check_namevarlist var # Return "0" if ${name}_var is reserved in rc.subr. _rc_namevarlist="program chroot chdir env flags fib nice user group groups prepend" check_namevarlist() { local _v for _v in $_rc_namevarlist; do case $1 in $_v) return 0 ;; esac done return 1 } # _echoonce var msg mode # mode=0: Echo $msg if ${$var} is empty. # After doing echo, a string is set to ${$var}. # # mode=1: Echo $msg if ${$var} is a string with non-zero length. # _echoonce() { local _var _msg _mode eval _var=\$$1 _msg=$2 _mode=$3 case $_mode in 1) [ -n "$_var" ] && echo "$_msg" ;; *) [ -z "$_var" ] && echo -n "$_msg" && eval "$1=finished" ;; esac } fi # [ -z "${_rc_subr_loaded}" ] _rc_subr_loaded=:Received on Fri Oct 17 2014 - 01:08:38 UTC
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