diff options
Diffstat (limited to 'src/pmcd/rc-proc.sh')
| -rw-r--r-- | src/pmcd/rc-proc.sh | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/src/pmcd/rc-proc.sh b/src/pmcd/rc-proc.sh new file mode 100644 index 0000000..3897c7f --- /dev/null +++ b/src/pmcd/rc-proc.sh @@ -0,0 +1,394 @@ +# +# Common sh(1) procedures to be used in PCP rc scripts +# +# Copyright (c) 2014 Red Hat. +# Copyright (c) 2000,2003 Silicon Graphics, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# + +# source the PCP configuration environment variables +. $PCP_DIR/etc/pcp.env + +# These functions use chkconfig if available, else tolerate missing chkconfig +# command (as on SUSE) by manipulating symlinks in /etc/rc.d directly. +# +# Usage: +# +# is_chkconfig_on : return 0 if $1 is chkconfig "on" else 1 +# chkconfig_on : chkconfig $1 "on" +# chkconfig_off : chkconfig $1 "off" +# chkconfig_on_msg: echo a message about how to chkconfig $1 on +# + +# +# private functions +# +_which() +{ + # some versions of which(1) have historically not reflected the + # correct exit status ... but it appears that all modern platforms + # get this correct + # + # keeping the old logic structure, just in case + # + + if $PCP_WHICH_PROG $1 >/dev/null 2>&1 + then + if [ "$PCP_PLATFORM" = broken ] + then + if $PCP_WHICH_PROG $1 | grep "no $1" >/dev/null + then + : + else + return 0 + fi + else + return 0 + fi + fi + return 1 +} + +_cmds_exist() +{ + _have_flag=false + [ -f $PCP_RC_DIR/$1 ] && _have_flag=true + + _have_systemctl=false + _which systemctl && _have_systemctl=true + _have_runlevel=false + _which runlevel && _have_runlevel=true + _have_chkconfig=false + _which chkconfig && _have_chkconfig=true + _have_sysvrcconf=false + _which sysvrcconf && _have_sysvrcconf=true + _have_rcupdate=false + _which rc-update && _have_rcupdate=true + _have_svcadm=false + _which svcadm && _have_svcadm=true +} + +# +# return the run levels for $1 +# +_runlevels() +{ + $PCP_AWK_PROG '/^# chkconfig:/ {print $3}' $PCP_RC_DIR/$1 | sed -e 's/[0-9]/& /g' +} + +# +# return rc start number for $1 +# +_runlevel_start() +{ + $PCP_AWK_PROG '/^# chkconfig:/ {print $4}' $PCP_RC_DIR/$1 +} + +# +# return runlevel stop number for $1 +# +_runlevel_stop() +{ + $PCP_AWK_PROG '/^# chkconfig:/ {print $5}' $PCP_RC_DIR/$1 +} + +# +# Return 0 if $1 is chkconfig "on" (enabled) at the current run level +# Handles missing chkconfig command and other assorted atrocities. +# +is_chkconfig_on() +{ + # if non-default install, everything is "on" + [ -n "$PCP_DIR" ] && return 0 + + LANG=C + _flag=$1 + + _ret=1 # return "off" by default + _rl=3 # default run level if !_have_runlevel + + _cmds_exist $_flag + $_have_runlevel && _rl=`runlevel | $PCP_AWK_PROG '{print $2}'` + + if [ "$PCP_PLATFORM" = mingw -o "$PCP_PLATFORM" = "freebsd" ] + then + # unknown mechanism, just do it + _ret=0 + elif [ "$PCP_PLATFORM" = "darwin" ] + then + case "$1" + in + pmcd) [ "`. /etc/hostconfig; echo $PMCD`" = "-YES-" ] && _ret=0 ;; + pmlogger) [ "`. /etc/hostconfig; echo $PMLOGGER`" = "-YES-" ] && _ret=0 ;; + pmie) [ "`. /etc/hostconfig; echo $PMIE`" = "-YES-" ] && _ret=0 ;; + pmproxy) [ "`. /etc/hostconfig; echo $PMPROXY`" = "-YES-" ] && _ret=0 ;; + pmwebd) [ "`. /etc/hostconfig; echo $PMWEBD`" = "-YES-" ] && _ret=0 ;; + esac + elif $_have_systemctl + then + systemctl is-enabled "$_flag".service >/dev/null 2>&1 && _ret=0 + elif $_have_chkconfig + then + chkconfig --list "$_flag" 2>&1 | grep $_rl":on" >/dev/null 2>&1 && _ret=0 + elif $_have_sysvrcconf + then + sysv-rc-conf --list "$_flag" 2>&1 | grep $_rl":on" >/dev/null 2>&1 && _ret=0 + elif $_have_rcupdate + then + rc-update show 2>&1 | grep "$_flag" >/dev/null 2>&1 && _ret=0 + elif $_have_svcadm + then + svcs -l pcp/$_flag | grep "enabled *true" >/dev/null 2>&1 && _ret=0 + else + # + # don't know, fallback to using the existence of rc symlinks + # + if [ -f /etc/debian_version ]; then + ls /etc/rc$_rl.d/S[0-9]*$_flag >/dev/null 2>&1 && _ret=0 + else + ls /etc/rc.d/rc$_rl.d/S[0-9]*$_flag >/dev/null 2>&1 && _ret=0 + fi + fi + + return $_ret +} + +# +# chkconfig "on" $1 +# Handles missing chkconfig command. +# +chkconfig_on() +{ + # if non-default install, everything is "on" + [ -n "$PCP_DIR" ] && return 0 + + _flag=$1 + [ -z "$_flag" ] && return 1 # fail + + _cmds_exist $_flag + $_have_flag || return 1 # fail + + if [ "$PCP_PLATFORM" = mingw -o "$PCP_PLATFORM" = "freebsd" ] + then + # unknown mechanism, just pretend + return 0 + elif [ "$PCP_PLATFORM" = "darwin" ] + then + echo "To enable $_flag, add the following line to /etc/hostconfig:" + case "$_flag" + in + pmcd) echo "PMCD=-YES-" ;; + pmlogger) echo "PMLOGGER=-YES-" ;; + pmie) echo "PMIE=-YES-" ;; + pmproxy) echo "PMPROXY=-YES-" ;; + pmwebd) echo "PMWEBD=-YES-" ;; + esac + elif $_have_systemctl + then + systemctl --no-reload enable "$_flag".service >/dev/null 2>&1 + elif $_have_chkconfig + then + chkconfig "$_flag" on >/dev/null 2>&1 + elif $_have_sysvrcconf + then + sysv-rc-conf "$_flag" on >/dev/null 2>&1 + elif $_have_rcupdate + then + rc-update add "$_flag" >/dev/null 2>&1 + elif $_have_svcadm + then + svcadm enable pcp/$_flag >/dev/null 2>&1 + else + _start=`_runlevel_start $_flag` + _stop=`_runlevel_stop $_flag` + if [ -f /etc/debian_version ] + then + update-rc.d -f $_flag defaults s$_start k$_stop + else + for _r in `_runlevels $_flag` + do + ln -sf ../init.d/$_flag /etc/rc.d/rc$_r.d/S$_start""$_flag >/dev/null 2>&1 + ln -sf ../init.d/$_flag /etc/rc.d/rc$_r.d/K$_stop""$_flag >/dev/null 2>&1 + done + fi + fi + + return 0 +} + +# +# chkconfig "off" $1 +# Handles missing chkconfig command. +# +chkconfig_off() +{ + # if non-default install, everything is "on" + [ -n "$PCP_DIR" ] && return 1 + + _flag=$1 + [ -z "$_flag" ] && return 1 # fail + + _cmds_exist $_flag + $_have_flag || return 1 # fail + + if [ "$PCP_PLATFORM" = mingw -o "$PCP_PLATFORM" = "freebsd" ] + then + # unknown mechanism, just pretend + return 0 + elif $_have_systemctl + then + systemctl --no-reload disable "$_flag".service >/dev/null 2>&1 + elif $_have_chkconfig + then + chkconfig --level 2345 "$_flag" off >/dev/null 2>&1 + elif $_have_sysvrcconf + then + sysv-rc-conf --level 2345 "$_flag" off >/dev/null 2>&1 + elif $_have_rcupdate + then + rc-update delete "$_flag" >/dev/null 2>&1 + elif $_have_svcadm + then + svcadm disable pcp/$_flag >/dev/null 2>&1 + else + # remove the symlinks + if [ -f /etc/debian_version ] + then + update-rc.d -f $_flag remove + else + rm -f /etc/rc.d/rc[0-9].d/[SK][0-9]*$_flag >/dev/null 2>&1 + fi + fi + + return 0 +} + +# +# Echo a message about how to chkconfig $1 "on" +# Tolerates missing chkconfig command +# +chkconfig_on_msg() +{ + _flag=$1 + _cmds_exist $_flag + $_have_flag || return 1 # fail + + if [ "$PCP_PLATFORM" = mingw -o "$PCP_PLATFORM" = "freebsd" ] + then + # no mechanism, just pretend + # + return 0 + else + echo " To enable $_flag, run the following as root:" + if $_have_systemctl + then + _cmd=`$PCP_WHICH_PROG systemctl` + echo " # $_cmd enable $_flag.service" + elif $_have_chkconfig + then + _cmd=`$PCP_WHICH_PROG chkconfig` + echo " # $_cmd $_flag on" + elif $_have_sysvrcconf + then + _cmd=`$PCP_WHICH_PROG sysvrcconf` + echo " # $_cmd $_flag on" + elif $_have_rcupdate + then + _cmd=`$PCP_WHICH_PROG rc-update` + echo " # $_cmd add $_flag" + elif $_have_svcadm + then + _cmd=`$PCP_WHICH_PROG svcadm` + echo " # $_cmd enable pcp/$_flag" + else + _start=`_runlevel_start $_flag` + _stop=`_runlevel_stop $_flag` + if [ -f /etc/debian_version ] + then + echo " update-rc.d -f $_flag remove" + echo " update-rc.d $_flag defaults $_start $_stop" + else + for _r in `_runlevels $_flag` + do + echo " # ln -sf ../init.d/$_flag /etc/rc.d/rc$_r.d/S$_start""$_flag" + echo " # ln -sf ../init.d/$_flag /etc/rc.d/rc$_r.d/K$_stop""$_flag" + done + fi + fi + fi + + return 0 +} + +# +# load some rc functions if available +# +# In openSUSE 12.1, /etc/rc.status intercepts our rc script and passes +# control to systemctl which uses systemd ... the result is that messages +# from our rc scripts are sent to syslog by default, and there is no +# apparent way to revert to the classical behaviour, so this "hack" allows +# PCP QA to set $PCPQA_NO_RC_STATUS and continue to see stdout and stderr +# from our rc scripts +# - Ken 1 Dec 2011 +# +if [ -r /etc/rc.status -a -z "${PCPQA_NO_RC_STATUS+set}" ] +then + # SuSE style + . /etc/rc.status + RC_STATUS=rc_status + RC_RESET=rc_reset + RC_CHECKPROC=checkproc +else + # Roll our own + RC_STATUS=_RC_STATUS + _RC_STATUS() + { + _rc_status=$? + if [ "$1" = "-v" ] + then + if [ $_rc_status -eq 0 ] + then $ECHO + else + $ECHO "failed (status=$_rc_status)" + fi + fi + return $_rc_status + } + + RC_RESET=_RC_RESET + _RC_RESET() + { + _rc_status=0 + return $_rc_status + } + + RC_CHECKPROC=_RC_CHECKPROC + _RC_CHECKPROC() + { + # usage + [ $# -ne 1 ] && return 2 + + # running + _b=`basename "$1"` + _n=`_get_pids_by_name $_b | wc -l` + [ $_n -ge 1 ] && return 0 + + # not running, but pid exists + [ -e /var/run/$_b.pid ] && return 1 + + # program not installed + [ ! -e "$1" ] && return 5 + + # not running and no pid + return 3 + } +fi |