* add:
check_pidfile parse a pidfile for a pid, checking that the
process is running, and print the matching pid
check_process print a list of running pids that match the procname
run_rc_command kitchen sink function to simplify creation of
rc.d scripts
run_rc_script invoke an rc.d script appropriately
rc_usage print a usage string for an rc.d script
err similar to err(3)
warn similar to warn(3)
* add copyright
* remove islocalfs(); nothing uses it
This commit is contained in:
lukem
parent
173f823e3a
commit
6096ea59cd
466
etc/rc.subr
466
etc/rc.subr
@ -1,14 +1,56 @@
|
||||
# $NetBSD: rc.subr,v 1.10 1999/07/07 21:24:56 drochner Exp $
|
||||
# $NetBSD: rc.subr,v 1.11 2000/03/10 11:39:27 lukem Exp $
|
||||
#
|
||||
# Copyright (c) 1997-2000 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.
|
||||
# 3. All advertising materials mentioning features or use of this software
|
||||
# must display the following acknowledgement:
|
||||
# This product includes software developed by the NetBSD
|
||||
# Foundation, Inc. and its contributors.
|
||||
# 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
# contributors may be used to endorse or promote products derived
|
||||
# from this software without specific prior written permission.
|
||||
#
|
||||
# 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
|
||||
#
|
||||
|
||||
#
|
||||
# checkyesno
|
||||
# Test $1 variable, and warn if not set to YES or NO.
|
||||
# return 0 if it's "yes" (et al), nonzero otherwise
|
||||
# functions
|
||||
# ---------
|
||||
|
||||
#
|
||||
checkyesno() {
|
||||
eval value=\$${1}
|
||||
case $value in
|
||||
# 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}
|
||||
case $_value in
|
||||
|
||||
# "yes", "true", "on", or "1"
|
||||
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
|
||||
@ -19,9 +61,8 @@ checkyesno() {
|
||||
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0)
|
||||
return 1
|
||||
;;
|
||||
|
||||
*)
|
||||
logger -s "WARNING: \$${1} is not set properly."
|
||||
warn "\$${1} is not set properly."
|
||||
return 1
|
||||
;;
|
||||
esac
|
||||
@ -32,8 +73,8 @@ checkyesno() {
|
||||
# Go through the list of critical filesystems, checking each one
|
||||
# to see if it is mounted, and if it is not, mounting it.
|
||||
#
|
||||
fstab=/etc/fstab
|
||||
mount_critical_filesystems() {
|
||||
mount_critical_filesystems()
|
||||
{
|
||||
if [ $1 = local ]; then
|
||||
_fslist=$critical_filesystems_beforenet
|
||||
else
|
||||
@ -54,26 +95,389 @@ mount_critical_filesystems() {
|
||||
done
|
||||
}
|
||||
|
||||
islocalfs() {
|
||||
if [ -z "$1" ]; then
|
||||
echo 'islocalfs() called with no fs argument: aborting.'
|
||||
exit 3
|
||||
#
|
||||
# check_pidfile pidfile procname
|
||||
# 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.
|
||||
#
|
||||
check_pidfile()
|
||||
{
|
||||
_pidfile=$1
|
||||
_procname=$2
|
||||
if [ -z "$_pidfile" -o -z "$_procname" ]; then
|
||||
err 3 'USAGE: check_pidfile pidfile procname'
|
||||
fi
|
||||
while read dev dir type opts; do
|
||||
if [ "$1" = "$dir" ]; then
|
||||
case $type in
|
||||
# Local filesystems.
|
||||
ados|cd9660|ext2fs|fdesc|ffs) return 0;;
|
||||
filecore|kernfs|lfs|mfs|msdos|null) return 0;;
|
||||
portal|procfs|ufs|umap|union) return 0;;
|
||||
# Network filesystems
|
||||
nfs) return 1;;
|
||||
# If we don't know, err on the safe side
|
||||
# and assume it's a network FS.
|
||||
*) return 1;;
|
||||
esac
|
||||
if [ ! -f $_pidfile ]; then
|
||||
return
|
||||
fi
|
||||
done < $fstab
|
||||
# Quietly ignore not-found filesystems.
|
||||
return 1;
|
||||
read _pid _junk < $_pidfile
|
||||
if [ -z "$_pid" ]; then
|
||||
return
|
||||
fi
|
||||
_procnamebn=`basename $_procname`
|
||||
ps -p $_pid -o 'pid,command' | while read _npid _arg0 _argv; do
|
||||
if [ "$_npid" = "PID" ]; then
|
||||
continue
|
||||
fi
|
||||
if [ "$_arg0" = "$_procname" -o "$_arg0" = "$_procnamebn" \
|
||||
-o "$_arg0" = "${_procnamebn}:" ]; then
|
||||
echo $_npid
|
||||
return
|
||||
fi
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# check_process procname
|
||||
# Ensures that a process (or processes) named procname is running.
|
||||
# Prints a list of matching pids.
|
||||
#
|
||||
check_process()
|
||||
{
|
||||
_procname=$1
|
||||
if [ -z "$_procname" ]; then
|
||||
err 3 'USAGE: check_process procname'
|
||||
fi
|
||||
_procnamebn=`basename $_procname`
|
||||
_pref=
|
||||
ps -ax -o 'pid,command' | while read _npid _arg0 _argv; do
|
||||
if [ "$_npid" = "PID" ]; then
|
||||
continue
|
||||
fi
|
||||
if [ "$_arg0" = "$_procname" -o "$_arg0" = "$_procnamebn" \
|
||||
-o "$_arg0" = "${_procnamebn}:" ]; then
|
||||
echo -n "$_pref$_npid"
|
||||
_pref=" "
|
||||
fi
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# run_rc_command arg [supported_args]
|
||||
# Scan supported_args (which has "start stop restart rcvar status"
|
||||
# prepended) for arg.
|
||||
# If there's a match, run ${arg}_cmd or the default command (see below).
|
||||
#
|
||||
# If arg has a given prefix, then:
|
||||
# prefix operation
|
||||
# ------ ---------
|
||||
# fast Skip the pid check.
|
||||
# force Set ${rcvar} to YES.
|
||||
#
|
||||
# The following globals are used:
|
||||
# name needed function
|
||||
# ---- ------ --------
|
||||
# name y Name of script.
|
||||
# command n Full path to command.
|
||||
# Not needed if ${arg}_cmd is set for
|
||||
# each keyword.
|
||||
# command_args n Optional args/shell directives for command.
|
||||
# pidfile n If set, use check_pidfile $pidfile, else if
|
||||
# $command is set, use check_process $command.
|
||||
# ${rcvar} n If the default command is being run, this is
|
||||
# checked with checkyesno to determine if
|
||||
# the action should be run.
|
||||
# If this variable isn't set, ${name} is checked
|
||||
# instead.
|
||||
# ${name}_flags n Arguments to call ${command} with.
|
||||
# NOTE: if $flags is set (e.g, from the parent
|
||||
# environment), it overrides this.
|
||||
# ${_arg}_cmd n If set, use this as the action when invoked;
|
||||
# $_arg is available to the action to use.
|
||||
# Otherwise, use default command (see below)
|
||||
# NOTE: checkyesno ${rcvar} is NOT performed
|
||||
# for ${_arg}_cmd; use ${_arg}_precmd to
|
||||
# do this.
|
||||
# ${_arg}_precmd n If set, run just before performing the main
|
||||
# action in the default command (i.e, after
|
||||
# checking for required bits and process
|
||||
# (non)existance).
|
||||
# If this completes with a non-zero exit code,
|
||||
# don't run ${_arg}_cmd.
|
||||
# required_dirs n If set, check for the existence of the given
|
||||
# directories before running the default
|
||||
# (re)start command.
|
||||
# required_files n If set, check for the readability of the given
|
||||
# files before running the default (re)start
|
||||
# command.
|
||||
# required_vars n If set, perform checkyesno on each of the
|
||||
# listed variables before running the default
|
||||
# (re)start command.
|
||||
#
|
||||
# Default commands for a given arg:
|
||||
# arg default
|
||||
# --- -------
|
||||
# status Show if ${command} is running, etc.
|
||||
# start if !running && checkyesno ${rcvar}
|
||||
# ${command}
|
||||
# stop if ${pidfile}
|
||||
# kill $sig_stop `check_pidfile $pidfile`
|
||||
# else
|
||||
# kill $sig_stop `check_process $command`
|
||||
# $sig_stop defaults to TERM.
|
||||
# reload As stop, except use $sig_reload instead.
|
||||
# $sig_reload defaults to HUP.
|
||||
# restart Run `stop' then `start'.
|
||||
#
|
||||
run_rc_command()
|
||||
{
|
||||
if ! checkyesno rc_configured; then
|
||||
err 1 '/etc/rc.conf is not configured'
|
||||
fi
|
||||
|
||||
_arg=$1
|
||||
shift
|
||||
_ckvar=${rcvar:-$name}
|
||||
if [ -z "$_ckvar" ]; then
|
||||
err 3 'neither $rcvar or $name is set.'
|
||||
fi
|
||||
|
||||
case "$_arg" in
|
||||
fast*)
|
||||
_arg=${_arg#fast}
|
||||
_rc_fast_run=YES
|
||||
;;
|
||||
force*)
|
||||
_arg=${_arg#force}
|
||||
eval ${_ckvar}=YES
|
||||
;;
|
||||
esac
|
||||
|
||||
_keywords="start stop restart rcvar $*"
|
||||
_pidcmd=
|
||||
if [ -z "$_rc_fast_run" ]; then
|
||||
if [ -n "$pidfile" ]; then
|
||||
_pidcmd='_pid=`check_pidfile '$pidfile' '$command'`'
|
||||
elif [ -n "$command" ]; then
|
||||
_pidcmd='_pid=`check_process '$command'`'
|
||||
fi
|
||||
if [ -n "$_pidcmd" ]; then
|
||||
_keywords="${_keywords} status"
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ -z "$_arg" ]; then
|
||||
rc_usage "$_keywords"
|
||||
fi
|
||||
|
||||
if [ -n "$flags" ]; then
|
||||
_flags=$flags
|
||||
else
|
||||
eval _flags=\$${name}_flags
|
||||
fi
|
||||
|
||||
eval $_pidcmd
|
||||
|
||||
for _elem in $_keywords; do
|
||||
if [ "$_elem" != "$_arg" ]; then
|
||||
continue
|
||||
fi
|
||||
|
||||
eval _cmd=\$${_arg}_cmd
|
||||
eval _precmd=\$${_arg}_precmd
|
||||
if [ -n "$_cmd" ]; then
|
||||
eval $_precmd || return 1
|
||||
eval $_cmd
|
||||
return 0
|
||||
fi
|
||||
|
||||
case "$_arg" in
|
||||
|
||||
status)
|
||||
if [ -n "$_pid" ]; then
|
||||
echo "${name} is running as pid $_pid."
|
||||
else
|
||||
echo "${name} is not running."
|
||||
fi
|
||||
;;
|
||||
|
||||
start)
|
||||
if [ -n "$_pid" ]; then
|
||||
echo "${name} already running? (pid=$_pid)."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if ! checkyesno ${_ckvar} || [ ! -x $command ]; then
|
||||
return 0
|
||||
fi
|
||||
|
||||
for _f in $required_vars; do
|
||||
if ! checkyesno $_f; then
|
||||
warn \
|
||||
"\$${_f} is not set; ${name} not started."
|
||||
return 1
|
||||
fi
|
||||
done
|
||||
for _f in $required_dirs; do
|
||||
if [ ! -d "${_f}/." ]; then
|
||||
warn \
|
||||
"${_f} is not a directory; ${name} not started."
|
||||
return 1
|
||||
fi
|
||||
done
|
||||
for _f in $required_files; do
|
||||
if [ ! -r "${_f}" ]; then
|
||||
warn \
|
||||
"${_f} is not readable; ${name} not started."
|
||||
return 1
|
||||
fi
|
||||
done
|
||||
|
||||
eval $_precmd || return 1
|
||||
echo "Starting ${name}."
|
||||
eval $command $_flags $command_args
|
||||
;;
|
||||
|
||||
stop)
|
||||
if [ -z "$_pid" ]; then
|
||||
if checkyesno ${_ckvar}; then
|
||||
if [ -n "$pidfile" ]; then
|
||||
echo \
|
||||
"${name} not running? (check $pidfile)."
|
||||
else
|
||||
echo "${name} not running?"
|
||||
fi
|
||||
exit 1
|
||||
fi
|
||||
return 0
|
||||
fi
|
||||
|
||||
eval $_precmd || return 1
|
||||
echo "Stopping ${name}."
|
||||
kill -${sig_stop:-TERM} $_pid
|
||||
;;
|
||||
|
||||
reload)
|
||||
if [ -z "$_pid" ]; then
|
||||
if checkyesno ${_ckvar}; then
|
||||
if [ -n "$pidfile" ]; then
|
||||
echo \
|
||||
"${name} not running? (check $pidfile)."
|
||||
else
|
||||
echo "${name} not running?"
|
||||
fi
|
||||
exit 1
|
||||
fi
|
||||
return 0
|
||||
fi
|
||||
echo "Reloading ${name} config files."
|
||||
eval $_precmd || return 1
|
||||
kill -${sig_reload:-HUP} $_pid
|
||||
;;
|
||||
|
||||
restart)
|
||||
if ! checkyesno ${_ckvar}; then
|
||||
return 0
|
||||
fi
|
||||
eval $_precmd || return 1
|
||||
( $0 stop )
|
||||
sleep 1
|
||||
$0 start
|
||||
|
||||
;;
|
||||
|
||||
rcvar)
|
||||
echo "# $name"
|
||||
if checkyesno ${_ckvar}; then
|
||||
echo "\$${_ckvar}=YES"
|
||||
else
|
||||
echo "\$${_ckvar}=NO"
|
||||
fi
|
||||
;;
|
||||
|
||||
*)
|
||||
rc_usage "$_keywords"
|
||||
;;
|
||||
|
||||
esac
|
||||
return 0
|
||||
done
|
||||
|
||||
echo 1>&2 "$0: unknown directive '$_arg'."
|
||||
rc_usage "$_keywords"
|
||||
exit 1
|
||||
}
|
||||
|
||||
#
|
||||
# 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. Otherwise it's run as
|
||||
# a child process.
|
||||
# Note: because `.sh' files are sourced into the current environment
|
||||
# run_rc_command shouldn't be used because its difficult to ensure
|
||||
# that the global variable state before and after the sourcing of
|
||||
# the .sh file won't adversely affect other scripts.
|
||||
#
|
||||
run_rc_script()
|
||||
{
|
||||
_file=$1
|
||||
_arg=$2
|
||||
if [ -z "$_file" -o -z "$_arg" ]; then
|
||||
err 3 'USAGE: run_rc_script file arg'
|
||||
fi
|
||||
|
||||
_narg=$_arg
|
||||
case "$_narg" in
|
||||
fast*)
|
||||
_narg=${_narg#fast}
|
||||
;;
|
||||
force*)
|
||||
_narg=${_narg#force}
|
||||
;;
|
||||
esac
|
||||
eval ${_narg}_precmd=""
|
||||
eval ${_narg}_cmd=""
|
||||
|
||||
case "$_file" in
|
||||
*.sh) # run in current shell
|
||||
set $_arg ; . $_file
|
||||
;;
|
||||
*) # run in subshell
|
||||
( set $_arg ; . $_file )
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
#
|
||||
# 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]("
|
||||
|
||||
_sep=
|
||||
for _elem in $*; do
|
||||
echo -n 1>&2 "$_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
|
||||
|
||||
logger "$0: ERROR $*"
|
||||
echo 1>&2 "$0: ERROR $*"
|
||||
exit $exitval
|
||||
}
|
||||
|
||||
#
|
||||
# warn message
|
||||
# Display message to stderr and log to the syslog.
|
||||
#
|
||||
warn()
|
||||
{
|
||||
logger "$0: WARNING $*"
|
||||
echo 1>&2 "$0: WARNING $*"
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user