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# $OpenBSD: rc.subr,v 1.88 2014/08/25 07:34:12 ajacoutot Exp $
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#
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# Copyright (c) 2010, 2011, 2014 Antoine Jacoutot <ajacoutot@openbsd.org>
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# Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
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# Copyright (c) 2010, 2011, 2014 Robert Nagy <robert@openbsd.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# Default functions and variables used by rc.d(8) scripts.
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_rc_err() {
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echo "$1" 1>&2
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exit 1
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}
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_rc_is_supported() {
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local _enotsup
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eval _enotsup=\${rc_$1}
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[ X"${_enotsup}" != X"NO" ]
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}
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_rc_usage() {
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local _a _allsup
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for _a in start stop restart reload check; do
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_rc_is_supported ${_a} && _allsup="${_allsup:+$_allsup|}${_a}"
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done
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_rc_err "usage: $0 [-df] ${_allsup}"
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}
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_rc_write_runfile() {
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[ -d ${_RC_RUNDIR} ] || mkdir -p ${_RC_RUNDIR} && \
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print -rn -- "${pexp}" > ${_RC_RUNFILE}
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}
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_rc_read_runfile() {
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local _new_pexp
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[ -f ${_RC_RUNFILE} ] && _new_pexp=$(< ${_RC_RUNFILE})
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[ -n "${_new_pexp}" ] && pexp="${_new_pexp}"
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}
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_rc_rm_runfile() {
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rm -f ${_RC_RUNFILE}
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}
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_rc_do() {
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if [ -n "${_RC_DEBUG}" ]; then
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echo "doing $@" && "$@"
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else
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"$@" >/dev/null 2>&1
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fi
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}
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_rc_exit() {
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local _pfix
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[ -z "${INRC}" -o X"$1" != X"ok" ] && _pfix="($1)"
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echo ${INRC:+'-n'} "${_pfix}"
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[ X"$1" = X"ok" ] && exit 0 || exit 1
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}
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_rc_wait() {
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local _i=0
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while [ $_i -lt ${daemon_timeout} ]; do
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case "$1" in
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reload|start)
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_rc_do rc_check && return 0
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;;
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stop)
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_rc_do rc_check || return 0
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;;
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*)
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break
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;;
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esac
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sleep 1
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_i=$((_i+1))
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done
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return 1
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}
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_rc_quirks() {
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# special care needed for spamlogd to avoid starting it up and failing
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# all the time
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if [ X"${spamd_flags}" = X"NO" -o X"${spamd_black}" != X"NO" ]; then
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spamlogd_flags=NO
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fi
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# special care needed for pflogd to avoid starting it up and failing
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# if pf is not enabled
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if [ X"${pf}" = X"NO" ]; then
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pflogd_flags=NO
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fi
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# special care needed if nfs_server=YES to startup nfsd and mountd with
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# sane default flags
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if [ X"${nfs_server}" = X"YES" ]; then
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[ X"${nfsd_flags}" = X"NO" ] && nfsd_flags="-tun 4"
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[ X"${mountd_flags}" = X"NO" ] && mountd_flags=
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fi
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# in case domainname is set and /var/yp/binding exists enable ypbind
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[ X"`domainname`" != X"" -a -d /var/yp/binding ] && ypbind_flags=
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}
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_rc_parse_conf() {
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typeset -l _key
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local _l _val
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set -A _allowed_keys -- \
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spamd_black pf ipsec check_quotas accounting \
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multicast_host multicast_router amd_master \
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pf_rules ipsec_rules shlib_dirs pkg_scripts \
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nfs_server
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[ $# -gt 0 ] || set -- /etc/rc.conf /etc/rc.conf.local
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for _rcfile; do
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[[ -f $_rcfile ]] || continue
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while IFS=' ' read -r _l; do
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[[ $_l == [!#=]*=* ]] || continue
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_key=${_l%%*([[:blank:]])=*}
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[[ $_key == *_@(flags|user|timeout) ]] || \
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[[ " ${_allowed_keys[*]} " == *" $_key "* ]] || \
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continue
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[[ $_key == "" ]] && continue
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_val=${_l##*([!=])=*([[:blank:]])}
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_val=${_val%%#*}
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_val=${_val%%*([[:blank:]])}
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# remove leading and trailing quotes (backwards compat)
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[[ $_val == @(\"*\"|\'*\') ]] && _val=${_val#?} _val=${_val%?}
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eval "${_key}=\${_val}"
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done < $_rcfile
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done
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_rc_do _rc_quirks
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}
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[ -n "${FUNCS_ONLY}" ] && return
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rc_start() {
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${rcexec} "${daemon} ${daemon_flags} ${_bg}"
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}
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rc_check() {
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pgrep -q -f "^${pexp}"
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}
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rc_reload() {
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pkill -HUP -f "^${pexp}"
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}
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rc_stop() {
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pkill -f "^${pexp}"
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}
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rc_cmd() {
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local _bg _n
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[ "$(id -u)" -eq 0 ] || \
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[ X"${rc_usercheck}" != X"NO" -a X"$1" = "Xcheck" ] || \
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_rc_err "$0: need root privileges"
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if ! (_rc_is_supported start && _rc_is_supported stop); then
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rc_restart=NO
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fi
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if ! _rc_is_supported $1; then
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[ -n "${INRC}" ] && exit 1
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_rc_err "$0: $1 is not supported"
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fi
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[ X"${rc_bg}" = X"YES" ] && _bg="&"
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[ -n "${_RC_DEBUG}" ] || _n="-n"
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_rc_do _rc_read_runfile
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case "$1" in
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check)
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echo $_n "${INRC:+ }${_name}"
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_rc_do rc_check && _rc_exit ok
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_rc_exit failed
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;;
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start)
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if [ X"${daemon_flags}" = X"NO" ]; then
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_rc_err "$0: need -f to force $1 since ${_name}_flags=NO"
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exit 1
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fi
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[ -z "${INRC}" ] && _rc_do rc_check && exit 0
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echo $_n "${INRC:+ }${_name}"
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while true; do # no real loop, only needed to break
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if type rc_pre >/dev/null; then
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_rc_do rc_pre || break
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fi
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# XXX only checks the status of the return code,
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# and _not_ that the daemon is actually running
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_rc_do rc_start || break
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if [ -n "${_bg}" ]; then
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sleep 1
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_rc_do _rc_wait start || break
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fi
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_rc_do _rc_write_runfile
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_rc_exit ok
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done
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# handle failure
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type rc_post >/dev/null && _rc_do rc_post
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_rc_do _rc_rm_runfile
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_rc_exit failed
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;;
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stop)
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_rc_do rc_check || exit 0
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echo $_n "${INRC:+ }${_name}"
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_rc_do rc_stop || _rc_exit failed
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_rc_do _rc_wait stop || _rc_exit failed
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if type rc_post >/dev/null; then \
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_rc_do rc_post || _rc_exit failed
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fi
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_rc_do _rc_rm_runfile
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_rc_exit ok
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;;
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reload)
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_rc_do rc_check || exit 0
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echo $_n "${INRC:+ }${_name}"
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_rc_do rc_reload || _rc_exit failed
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_rc_do _rc_wait reload || _rc_exit failed
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_rc_exit ok
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;;
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restart)
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$0 ${_RC_DEBUG} ${_RC_FORCE} stop &&
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$0 ${_RC_DEBUG} ${_RC_FORCE} start
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;;
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*)
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_rc_usage
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;;
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esac
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}
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[ -n "${daemon}" ] || _rc_err "$0: daemon is not set"
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unset _RC_DEBUG _RC_FORCE
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while getopts "df" c; do
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case "$c" in
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d) _RC_DEBUG=-d;;
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f) _RC_FORCE=-f;;
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*) _rc_usage;;
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esac
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done
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shift $((OPTIND-1))
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_name=$(basename $0)
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_RC_RUNDIR=/var/run/rc.d
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_RC_RUNFILE=${_RC_RUNDIR}/${_name}
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# parse /etc/rc.conf{.local} for the daemon_flags
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_rc_do _rc_parse_conf
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eval _rcflags=\${${_name}_flags}
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eval _rcuser=\${${_name}_user}
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eval _rctimeout=\${${_name}_timeout}
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getcap -f /etc/login.conf ${_name} 1>/dev/null 2>&1 && \
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daemon_class=${_name}
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[ -z "${daemon_class}" ] && daemon_class=daemon
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[ -z "${daemon_user}" ] && daemon_user=root
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[ -z "${daemon_timeout}" ] && daemon_timeout=30
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[ -n "${_RC_FORCE}" ] && [ X"${_rcflags}" = X"NO" ] && unset _rcflags
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[ -n "${_rcflags}" ] && daemon_flags=${_rcflags}
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[ -n "${_rcuser}" ] && daemon_user=${_rcuser}
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[ -n "${_rctimeout}" ] && daemon_timeout=${_rctimeout}
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if [ -n "${_RC_DEBUG}" ]; then
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echo -n "${_name}_flags "
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[ -n "${_rcflags}" ] || echo -n "empty, using default "
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echo ">${daemon_flags}<"
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fi
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readonly daemon_class
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unset _rcflags _rcuser _rctimeout
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pexp="${daemon}${daemon_flags:+ ${daemon_flags}}"
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rcexec="su -l -c ${daemon_class} -s /bin/sh ${daemon_user} -c"
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