1392 lines
55 KiB
Bash
Executable File
1392 lines
55 KiB
Bash
Executable File
#!/bin/sh
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#
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# NOTE: This script is intentionally written with portable shell constructs
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# with the aim and hope to work in different interpreters, so it is a
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# bit dumber and less efficient than could be achieved with the more
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# featured shells in the spectrum.
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# NOTE ALSO: The configuration parser in this script is not meant to be a
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# reference or 100% compliant with what the binary code uses; its aim
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# is to just pick out some strings relevant for tracking config changes.
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#
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# Copyright (C) 2016-2020 Eaton
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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#! \file nut-driver-enumerator.sh(.in)
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# \author Jim Klimov <EvgenyKlimov@eaton.com>
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# \brief Enumerate NUT devices for service-unit instance configuration
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# \details This script allows to enumerate UPSes in order to produce the
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# individual service unit instances for each defined configuration.
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# It assumes the user has adequate permissions to inspect and create
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# services (e.g. is a root or has proper RBAC profiles to do so).
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# It helps service frameworks such as Linux systemd and Solaris SMF.
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# When executed, this script looks for all configured ups.conf
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# sections and registered service instances, and makes these two
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# lists match up. It has also a mode to do this in a loop, to keep
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# checking for differences and applying them, on systems where it's
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# problematic to trigger it in response to FS event notifications.
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# Returns exit codes:
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# 0 Sections and services already match up
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# 42 Sections and services differed, but now match up -
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# now the caller should likely restart some services.
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# Note that the drivers' service instances were started or
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# stopped as required (by AUTO_START=yes) - but maybe the
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# upsd or upsmon services should restart. If you pass envvar
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# REPORT_RESTART_42=no then this codepath would return 0.
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# In default mode, such non-null reconfiguration should cause
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# the nut-driver-enumerator service to restart and this would
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# propagate to other NUT services that depend on it.
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# 13 Sections and services differed, and still do not match up
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# 1 Bad inputs, e.g. unrecognized service management framework
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# 2 Absent or unreadable ups.conf file
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#
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# NOTE: Currently found caveats that might be solved later but require
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# considerable effort:
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# * Solaris SMF constrains the syntax of valid strings for instance names
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# (e.g. not starting with a digit, no period chars) which blocks creation
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# of some UPS driver instances. This might be worked around by hashing
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# the device name e.g. to base64 (and un-hashing instance name when calling
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# upsdrvctl), but is not quite user-friendly. Also can store device name
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# in a service attribute while mangling the instance name to a valid subset.
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# Comparisons (if devices are already wrapped) becomes more complicated in
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# the script in either case, as well as in the service startup method.
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# ** The `+` `/` `=` characters from base64 are also invalid for SMF instance
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# name, but the first two can be sed'ed to `-` `_` and back, for example.
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# Some prefix word is also needed (avoid starting with a digit).
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# The trailing padding `=` can be dropped, and added until we get a
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# non-empty decode. Conversions can be done by
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# `echo "$string" | openssl base64 -e|-d`
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# * Dummy-UPS services that "proxy" another locally defined section are
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# essentially a circular dependency for upsd. While the system might
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# start-up lacking a driver, there should be some timer to re-enable
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# failed not-disabled drivers (would be useful in any case though).
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# Directory where NUT configs are located, e.g. /etc/nut or /etc/ups
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# Set at package configuration, compiled into daemons and drivers
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prefix="/usr/local"
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[ -n "${NUT_CONFPATH-}" ] || NUT_CONFPATH="${prefix}/etc"
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# Technically this should be a distribution-dependent value configured
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# during package build. But everyone has it the same from systemd defaults:
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[ -n "${SYSTEMD_CONFPATH-}" ] || SYSTEMD_CONFPATH="/etc/systemd/system"
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if [ -n "$ZSH_VERSION" ]; then
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### Problem: loops like `for UPS in $UPSLIST` do not separate
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### the UPSLIST into many tokens but use it as one string.
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echo "FATAL: zsh is not supported in this script" >&2
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exit 1
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# setopt noglob
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# setopt +F
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# IFS="`printf ' \t\r\n'`" ; export IFS
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fi
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if set | egrep '^(shell|version|t?csh)' | egrep 't?csh' >/dev/null ; then
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echo "FATAL: csh or tcsh is not supported in this script" >&2
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exit 1
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fi
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# Third-party services to depend on (can be overridden by config file)
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### Note that for systemd+udev integration, it may be better to set up
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### triggers in udev, see e.g.
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### http://stackoverflow.com/questions/18463755/linux-start-daemon-on-connected-usb-serial-dongle
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### Also can tune whether a driver "Wants" another service (would consider
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### ordering if that one is enabled, but live if it is disabled), or if it
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### "Requires" that (would cause that to start).
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DEPSVC_USB_SYSTEMD="systemd-udev.service systemd-udev-settle.service"
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DEPREQ_USB_SYSTEMD="Wants"
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DEPSVC_NET_FULL_SYSTEMD="network-online.target systemd-resolved.service ifplugd.service"
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DEPREQ_NET_FULL_SYSTEMD="Wants"
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DEPSVC_NET_LOCAL_SYSTEMD="network.target"
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DEPREQ_NET_LOCAL_SYSTEMD="Wants"
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SVCNAME_SYSTEMD="nut-driver"
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# Some or all of these FMRIs may be related to dynamically changing hardware
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# require_all) ;; # All cited services are running (online or degraded)
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# require_any) ;; # At least one of the cited services is running
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# optional_all) ;; # (All) cited services are running or would not run
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# # without administrative action (disabled, maintenance,
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# # not present, or are waiting for dependencies which do
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# # not start without administrative action).
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DEPSVC_USB_SMF="svc:/system/hotplug:default svc:/system/dbus:default svc:/system/hal:default svc:/milestone/devices:default"
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DEPREQ_USB_SMF="optional_all"
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# By default there are several physical network FMRIs shipped and at most
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# only one is enabled on a particular system (e.g. :default or :nwam)
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DEPSVC_NET_FULL_SMF="svc:/network/physical svc:/milestone/name-services"
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DEPREQ_NET_FULL_SMF="optional_all"
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DEPSVC_NET_LOCAL_SMF="svc:/network/loopback:default"
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DEPREQ_NET_LOCAL_SMF="optional_all"
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SVCNAME_SMF="svc:/system/power/nut-driver"
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[ -z "${NUT_DRIVER_ENUMERATOR_CONF-}" ] && \
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NUT_DRIVER_ENUMERATOR_CONF="${NUT_CONFPATH}/nut-driver-enumerator.conf"
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[ -s "${NUT_DRIVER_ENUMERATOR_CONF}" ] && \
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echo "Sourcing config file: ${NUT_DRIVER_ENUMERATOR_CONF}" && \
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. "${NUT_DRIVER_ENUMERATOR_CONF}"
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[ -z "${UPSCONF-}" ] && \
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UPSCONF="${NUT_CONFPATH}/ups.conf"
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# Start a freshly-registered unit?
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[ -z "${AUTO_START-}" ] && AUTO_START=yes
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# We avoid regex '\t' which gets misinterpreted by some tools
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TABCHAR="`printf '\t'`" || TABCHAR=' '
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if [ -z "${SERVICE_FRAMEWORK-}" ] ; then
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[ -x /usr/sbin/svcadm ] && [ -x /usr/sbin/svccfg ] && [ -x /usr/bin/svcs ] && [ -x /usr/bin/svcprop ] && \
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SERVICE_FRAMEWORK="smf"
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[ -z "${SERVICE_FRAMEWORK-}" ] && \
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[ -x /bin/systemctl ] && \
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SERVICE_FRAMEWORK="systemd"
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fi
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# Optionally use Coreutils timeout to limit the
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# (potentially hanging) calls to systemd tools...
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# Should not hurt with SMF too, if it ever misbehaves.
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if [ -z "${TIMEOUT_CMD+x}" ]; then
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# Envvar not set at all (set but empty is okay, caller wants that then)
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TIMEOUT_CMD=""
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TIMEOUT_ARGS=""
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if which timeout 2>/dev/null >/dev/null ; then
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# Systemd default timeout for unit start/stop
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TIMEOUT_CMD="timeout"
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TIMEOUT_ARGS="90s"
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fi
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fi
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# Cache needed bits of ups.conf to speed up later parsing. Note that these
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# data are needed for most operations, and populated by upslist_readFile()
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UPSCONF_DATA=""
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# Subset of normalized data above that only has sections, drivers and ports
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UPSCONF_DATA_SDP=""
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# List of configured UPSes in the config-file
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UPSLIST_FILE=""
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# List of configured service instances for UPS drivers
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UPSLIST_SVCS=""
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# Framework-specific implementations are generally hooked here:
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hook_registerInstance=""
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hook_unregisterInstance=""
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hook_refreshSupervizor=""
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hook_listInstances=""
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hook_listInstances_raw=""
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hook_validInstanceName=""
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hook_validFullUnitName=""
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hook_validInstanceSuffixName=""
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hook_getSavedMD5=""
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hook_setSavedMD5=""
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hook_restart_upsd=""
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hook_restart_drv=""
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case "${SERVICE_FRAMEWORK-}" in
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smf)
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hook_registerInstance="smf_registerInstance"
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hook_unregisterInstance="smf_unregisterInstance"
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hook_refreshSupervizor="smf_refreshSupervizor"
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hook_listInstances="smf_listInstances"
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hook_listInstances_raw="smf_listInstances_raw"
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hook_validInstanceName="smf_validInstanceName"
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hook_validFullUnitName="smf_validFullUnitName"
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hook_validInstanceSuffixName="smf_validInstanceSuffixName"
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hook_getSavedMD5="smf_getSavedMD5"
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hook_setSavedMD5="smf_setSavedMD5"
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hook_restart_upsd="smf_restart_upsd"
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hook_restart_drv="smf_restart_drv"
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;;
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systemd)
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hook_registerInstance="systemd_registerInstance"
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hook_unregisterInstance="systemd_unregisterInstance"
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hook_refreshSupervizor="systemd_refreshSupervizor"
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hook_listInstances="systemd_listInstances"
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hook_listInstances_raw="systemd_listInstances_raw"
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hook_validInstanceName="systemd_validInstanceName"
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hook_validFullUnitName="systemd_validFullUnitName"
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hook_validInstanceSuffixName="systemd_validInstanceSuffixName"
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hook_getSavedMD5="systemd_getSavedMD5"
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hook_setSavedMD5="systemd_setSavedMD5"
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hook_restart_upsd="systemd_restart_upsd"
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hook_restart_drv="systemd_restart_drv"
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;;
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selftest)
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hook_registerInstance="selftest_NOOP"
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hook_unregisterInstance="selftest_NOOP"
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hook_refreshSupervizor="selftest_NOOP"
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hook_listInstances="selftest_NOOP"
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hook_listInstances_raw="selftest_NOOP"
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hook_validInstanceName="selftest_NOOP"
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hook_validFullUnitName="selftest_NOOP"
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hook_validInstanceSuffixName="selftest_NOOP"
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hook_getSavedMD5="selftest_NOOP"
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hook_setSavedMD5="selftest_NOOP"
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hook_restart_upsd="selftest_NOOP"
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hook_restart_drv="selftest_NOOP"
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;;
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"")
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echo "Error detecting the service-management framework on this OS" >&2
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exit 1
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;;
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*)
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echo "Error: User provided an unknown service-management framework '$SERVICE_FRAMEWORK'" >&2
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exit 1
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;;
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esac
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selftest_NOOP() {
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echo "NO-OP: Self-testing context does not do systems configuration" >&2
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return 0
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}
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common_isFiled() {
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[ -n "$UPSLIST_FILE" ] && \
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for UPSF in $UPSLIST_FILE ; do
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[ "$1" = "$UPSF" ] && return 0
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[ "`$hook_validInstanceName "$UPSF"`" = "$1" ] && return 0
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done
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return 1
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}
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common_isRegistered() {
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[ -n "$UPSLIST_SVCS" ] && \
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for UPSS in $UPSLIST_SVCS ; do
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[ "$1" = "$UPSS" ] && return 0
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[ "`$hook_validInstanceName "$1"`" = "$UPSS" ] && return 0
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done
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return 1
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}
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upslist_equals() {
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# Compare pre-sorted list of DEVICES ($1) and SVCINSTs ($2) including
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# the possible mangling for service names. Return 0 if lists describe
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# exactly same set of devices and their services.
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# Note: This logic only checks the names, not the contents of device
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# sections, so re-definitions of an existing device configuration
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# would not trigger a service restart by itself. Such deeper check
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# belongs in a different routine, see upssvcconf_checksum_unchanged().
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# Trivial case 0: one string is empty, another is not
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# Note: `echo '' | wc -l` == "1" not "0"!
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[ -n "$1" -a -z "$2" ] && return 1
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[ -z "$1" -a -n "$2" ] && return 1
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# Trivial case 1: equal strings
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[ "$1" = "$2" ] && return 0
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# Trivial case 2: different amount of entries
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[ "`echo "$1" | wc -l`" = "`echo "$2" | wc -l`" ] || return $?
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_TMP_DEV_SVC=""
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for _DEV in $1 ; do
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DEVINST="`$hook_validInstanceName "$_DEV"`"
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for _SVC in $2 ; do
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[ "$_DEV" = "$_SVC" ] \
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|| [ "$DEVINST" = "$_SVC" ] \
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&& { [ -z "$_TMP_DEV_SVC" ] \
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&& _TMP_DEV_SVC="$_DEV = $_SVC" \
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|| _TMP_DEV_SVC="$_TMP_DEV_SVC
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$_DEV = $_SVC" ; }
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done
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done
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# Input was not empty; did anything in output fit?
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[ -z "$_TMP_DEV_SVC" ] && return 1
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# Exit code : is the built mapping as long as the source list(s)?
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[ "`echo "$1" | wc -l`" = "`echo "$_TMP_DEV_SVC" | wc -l`" ]
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}
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upssvcconf_checksum_unchanged() {
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# $1 = dev, $2 = svc
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# compare checksums of the configuration section from the file and the
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# stashed configuration in a service instance (if any).
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# FIXME : optimize by caching, we likely have quite a few requests
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[ "`upsconf_getSection_MD5 "$1"`" = "`$hook_getSavedMD5 "$2"`" ]
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}
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upslist_checksums_unchanged() {
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# For each device and its corresponding unit, compare checksums of the
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# configuration section from the file and the stashed configuration in
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# a service instance. Prints a list of mismatching service names that
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# should get reconfigured.
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[ -z "$1" -o -z "$2" ] && return 1
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_TMP_SVC=""
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for _DEV in $1 ; do
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DEVINST="`$hook_validInstanceName "$_DEV"`"
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for _SVC in $2 ; do
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if [ "$_DEV" = "$_SVC" ] \
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|| [ "$DEVINST" = "$_SVC" ] \
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; then
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upssvcconf_checksum_unchanged "$_DEV" "$_SVC" || \
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{ [ -z "$_TMP_SVC" ] \
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&& _TMP_SVC="$_SVC" \
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|| _TMP_SVC="$_TMP_SVC
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$_SVC" ; }
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fi
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done
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done
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[ -z "$_TMP_SVC" ] && return 0
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echo "$_TMP_SVC"
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return 1
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}
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upsconf_getSection_content() {
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# "$1" = name of ups.conf section to display in whole, from whatever
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# comes on stdin (file or a pre-made normalized variable)
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# empty "$1" means the global config (before any sections)
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#
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# NOTE (TODO?): This routine finds the one NUT device section, prints it
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# and returns when the section is over. It currently does not cover (in
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# a way allowing to do it efficiently) selection of several sections,
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# or storing each section content in some array or dynamic variables
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# (as would be better fit for portable shells) to later address them
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# quickly without re-parsing the file or big envvar many times.
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#
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CURR_SECTION=""
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SECTION_CONTENT=""
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RES=1
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[ -n "$1" ] || RES=0
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while read LINE ; do
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case "$LINE" in
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\["$1"\])
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if [ "$RES" = 0 ]; then
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# We have already displayed a section, here is a new one,
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# and this routine only displays one (TODO: toggle?)
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break
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fi
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SECTION_CONTENT="$LINE"
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CURR_SECTION="$1"
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RES=0
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continue
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;;
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\[*\ *\]|\[*"$TABCHAR"*\])
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# Note that section-name brackets should contain a single token
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# Fall through to add the line to contents of existing section
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;;
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\[*\])
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[ "$CURR_SECTION" = "$1" ] && break
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# Use a value that can not be a section name here:
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CURR_SECTION="[]"
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continue
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;;
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"") continue ;;
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*) ;; # Fall through to add the line to contents of existing section
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esac
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if [ "$CURR_SECTION" = "$1" ]; then
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if [ -n "$SECTION_CONTENT" ]; then
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SECTION_CONTENT="$SECTION_CONTENT
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$LINE"
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else
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SECTION_CONTENT="$LINE"
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fi
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fi
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done
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if [ -n "$SECTION_CONTENT" ]; then
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echo "$SECTION_CONTENT"
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fi
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[ "$RES" = 0 ] || echo "ERROR: Section [$1] was not found in the '$UPSCONF' file" >&2
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return $RES
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}
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upsconf_getSection() {
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# Use the whole output of normalization parser
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upslist_normalizeFile_once || return # Propagate errors upwards
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upsconf_getSection_content "$@" << EOF
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${UPSCONF_DATA}
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EOF
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}
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upsconf_getSection_MD5() {
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calc_md5 "`upsconf_getSection "$@"`"
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}
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upsconf_getSection_SDP() {
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# Use the section-driver-port subset
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upslist_normalizeFile_once || return # Propagate errors upwards
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upsconf_getSection_content "$@" << EOF
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${UPSCONF_DATA_SDP}
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EOF
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}
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upsconf_getValue() {
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# "$1" = name of ups.conf section, may be empty for global config
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# "$2..$N" = name of config key; we will echo its value
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### [ -n "$1" ] || return $?
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[ -n "$2" ] || return $?
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[ -n "$GETSECTION" ] || GETSECTION="upsconf_getSection"
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CURR_SECTION="" # Gets set by a GETSECTION implementation
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RES=0
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|
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# Note: Primary aim of this egrep is to pick either assignments or flags
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# As a by-product it can be used to test if a particular value is set ;)
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SECTION_CONTENT="`$GETSECTION "$1"`" || return
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shift
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KEYS="$*"
|
|
|
|
while [ "$#" -gt 0 ] ; do
|
|
RES_L=0
|
|
VALUE=""
|
|
|
|
LINE="`echo "$SECTION_CONTENT" | egrep '(^'"$1"'=|^'"$1"'$)'`" \
|
|
&& VALUE="$(echo "$LINE" | sed -e "s,^$1=,," -e 's,^\"\(.*\)\"$,\1,' -e "s,^'\(.*\)'$,\1,")" \
|
|
|| RES_L=$?
|
|
|
|
[ "$RES_L" = 0 ] || { RES="$RES_L" ; echo "ERROR: Section [$CURR_SECTION] or key '$1' in it was not found in the '$UPSCONF' file" >&2 ; }
|
|
|
|
echo "$VALUE"
|
|
shift
|
|
done
|
|
|
|
[ "$RES" = 0 ] || echo "ERROR: Section [$CURR_SECTION] or key(s) '$KEYS' in it was not found in the '$UPSCONF' file" >&2
|
|
return $RES
|
|
}
|
|
|
|
upsconf_getDriver() {
|
|
# "$1" = name of ups.conf section; return (echo) the driver name used there
|
|
# In the context this function is used, UPSCONF exists and section is there
|
|
GETSECTION="upsconf_getSection_SDP" upsconf_getValue "$1" "driver"
|
|
return $?
|
|
}
|
|
|
|
upsconf_getPort() {
|
|
# "$1" = name of ups.conf section; return (echo) the "port" name used there
|
|
# In the context this function is used, UPSCONF exists and section is there
|
|
GETSECTION="upsconf_getSection_SDP" upsconf_getValue "$1" "port"
|
|
return $?
|
|
}
|
|
|
|
upsconf_getDriverMedia() {
|
|
# "$1" = name of ups.conf section; return (echo) name and type of driver as
|
|
# needed for dependency evaluation (what services we must depend on for this
|
|
# unit), newline-separated (drvname<EOL>type). Empty type for unclassified
|
|
# results, assuming no known special dependencies (note that depending on
|
|
# particular system's physics, both serial and network media may need USB).
|
|
CURR_DRV="`upsconf_getDriver "$1"`" || return $?
|
|
case "$CURR_DRV" in
|
|
*netxml*|*snmp*|*ipmi*|*powerman*|*-mib*|*avahi*|*apcupsd*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "network" ; return ;;
|
|
*usb*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "usb" ; return ;;
|
|
nutdrv_qx) # May be direct serial or USB
|
|
CURR_PORT="`upsconf_getPort "$1"`" || CURR_PORT=""
|
|
case "$CURR_PORT" in
|
|
auto|/dev/*usb*|/dev/*hid*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "usb" ; return ;;
|
|
/dev/*)
|
|
# See drivers/nutdrv_qx.c :: upsdrv_initups() for a list
|
|
if [ -n "`upsconf_getValue "$1" 'subdriver' 'vendorid' 'productid' 'vendor' 'product' 'serial' 'bus' 'langid_fix'`" ] \
|
|
; then
|
|
printf '%s\n%s\n' "$CURR_DRV" "usb" ; return
|
|
else
|
|
printf '%s\n%s\n' "$CURR_DRV" "serial" ; return
|
|
fi
|
|
;;
|
|
*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "" ; return ;;
|
|
esac
|
|
;;
|
|
*dummy*|*clone*) # May be networked (proxy to remote NUT)
|
|
CURR_PORT="`upsconf_getPort "$1"`" || CURR_PORT=""
|
|
case "$CURR_PORT" in
|
|
*@localhost|*@|*@127.0.0.1|*@::1)
|
|
printf '%s\n%s\n' "$CURR_DRV" "network-localhost" ; return ;;
|
|
*@*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "network" ; return ;;
|
|
*)
|
|
printf '%s\n%s\n' "$CURR_DRV" "" ; return ;;
|
|
esac
|
|
;;
|
|
*) printf '%s\n%s\n' "$CURR_DRV" "" ; return ;;
|
|
esac
|
|
}
|
|
|
|
upsconf_getMedia() {
|
|
_DRVMED="`upsconf_getDriverMedia "$1"`" || return
|
|
echo "$_DRVMED" | tail -n +2
|
|
return 0
|
|
}
|
|
|
|
upsconf_debug() {
|
|
_DRV="`upsconf_getDriver "$1"`"
|
|
_PRT="`upsconf_getPort "$1"`"
|
|
_MED="`upsconf_getMedia "$1"`"
|
|
_MD5="`upsconf_getSection_MD5 "$1"`"
|
|
NAME_MD5="`calc_md5 "$1"`"
|
|
echo "INST: ${NAME_MD5}~[$1]: DRV='$_DRV' PORT='$_PRT' MEDIA='$_MED' SECTIONMD5='$_MD5'"
|
|
}
|
|
|
|
calc_md5() {
|
|
# Tries several ways to produce an MD5 of the "$1" argument
|
|
_MD5="`echo "$1" | md5sum 2>/dev/null | awk '{print $1}'`" && [ -n "$_MD5" ] || \
|
|
{ _MD5="`echo "$1" | openssl dgst -md5 2>/dev/null | awk '{print $NF}'`" && [ -n "$_MD5" ]; } || \
|
|
return 1
|
|
|
|
echo "$_MD5"
|
|
}
|
|
|
|
calc_md5_file() {
|
|
# Tries several ways to produce an MD5 of the file named by "$1" argument
|
|
[ -s "$1" ] || return 2
|
|
|
|
_MD5="`md5sum 2>/dev/null < "$1" | awk '{print $1}'`" && [ -n "$_MD5" ] || \
|
|
{ _MD5="`openssl dgst -md5 2>/dev/null < "$1" | awk '{print $NF}'`" && [ -n "$_MD5" ]; } || \
|
|
return 1
|
|
|
|
echo "$_MD5"
|
|
}
|
|
|
|
smf_validFullUnitName() {
|
|
case "$1" in
|
|
*:*) echo "$1" ;;
|
|
*) echo "$SVCNAME_SMF:$1" ;;
|
|
esac
|
|
}
|
|
smf_validInstanceName() {
|
|
echo "MD5_`calc_md5 "$1"`"
|
|
}
|
|
smf_validInstanceSuffixName() {
|
|
case "$1" in
|
|
*:*) echo "$1" | sed 's,^.*:\([^:]*\)$,\1,' ;;
|
|
*) echo "$1" ;;
|
|
esac
|
|
}
|
|
smf_registerInstance() {
|
|
DEVICE="$1"
|
|
SVCINST="$1"
|
|
/usr/sbin/svccfg -s nut-driver add "$DEVICE" || \
|
|
{ SVCINST="`smf_validInstanceName "$1"`" && \
|
|
/usr/sbin/svccfg -s nut-driver add "$SVCINST" || return ; }
|
|
echo "Added instance: 'nut-driver:$SVCINST' for NUT configuration section '$DEVICE'" >&2
|
|
|
|
DEPSVC=""
|
|
DEPREQ=""
|
|
_MED="`upsconf_getMedia "$DEVICE"`"
|
|
case "$_MED" in
|
|
usb)
|
|
DEPSVC="$DEPSVC_USB_SMF"
|
|
DEPREQ="$DEPREQ_USB_SMF" ;;
|
|
network-localhost)
|
|
DEPSVC="$DEPSVC_NET_LOCAL_SMF"
|
|
DEPREQ="$DEPREQ_NET_LOCAL_SMF" ;;
|
|
network)
|
|
DEPSVC="$DEPSVC_NET_FULL_SMF"
|
|
DEPREQ="$DEPREQ_NET_FULL_SMF" ;;
|
|
serial) ;;
|
|
'') ;;
|
|
*) echo "WARNING: Unexpected NUT media type ignored: '$_MED'" >&2 ;;
|
|
esac
|
|
|
|
TARGET_FMRI="nut-driver:$SVCINST"
|
|
if [ -n "$DEPSVC" ]; then
|
|
[ -n "$DEPREQ" ] || DEPREQ="optional_all"
|
|
echo "Adding '$DEPREQ' dependency for '$SVCINST' on '$DEPSVC'..."
|
|
|
|
DEPPG="nut-driver-enumerator-generated"
|
|
RESTARTON="refresh"
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" addpg "$DEPPG" dependency && \
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" setprop "$DEPPG"/grouping = astring: "$DEPREQ" && \
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" setprop "$DEPPG"/restart_on = astring: "$RESTARTON" && \
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" setprop "$DEPPG"/type = astring: service && \
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" setprop "$DEPPG"/entities = fmri: "($DEPSVC)" && \
|
|
echo "OK" || echo "FAILED to define the dependency" >&2
|
|
fi
|
|
|
|
smf_setSavedMD5 "$SVCINST" "`upsconf_getSection_MD5 "$DEVICE"`"
|
|
|
|
/usr/sbin/svcadm refresh "${TARGET_FMRI}" || return
|
|
if [ "$AUTO_START" = yes ] ; then
|
|
/usr/sbin/svcadm clear "${TARGET_FMRI}" 2>/dev/null || true
|
|
/usr/sbin/svcadm enable "${TARGET_FMRI}" || return
|
|
echo "Started instance: 'nut-driver:$SVCINST' for NUT configuration section '$DEVICE'" >&2
|
|
fi
|
|
}
|
|
smf_unregisterInstance() {
|
|
echo "Removing instance: 'nut-driver:$1' ..." >&2
|
|
/usr/sbin/svcadm disable -ts 'nut-driver:'"$1" || false
|
|
/usr/sbin/svccfg -s nut-driver delete "$1"
|
|
}
|
|
smf_refreshSupervizor() {
|
|
:
|
|
}
|
|
smf_listInstances_raw() {
|
|
# Newer versions have pattern matching; older SMF might not have this luxury
|
|
/usr/bin/svcs -a -H -o fmri | egrep '/nut-driver:'
|
|
}
|
|
smf_listInstances() {
|
|
smf_listInstances_raw | sed 's/^.*://' | sort -n
|
|
}
|
|
smf_getSavedMD5() {
|
|
# Query service instance $1
|
|
PG="nut-driver-enumerator-generated-checksum"
|
|
PROP="SECTION_CHECKSUM"
|
|
|
|
if [ -n "$1" ]; then
|
|
TARGET_FMRI="nut-driver:$1"
|
|
else
|
|
# Global section
|
|
TARGET_FMRI="nut-driver"
|
|
PROP="SECTION_CHECKSUM_GLOBAL"
|
|
fi
|
|
|
|
# Note: lookups for GLOBAL cause each service instance to show up
|
|
/usr/bin/svcprop -p "$PG/$PROP" "$TARGET_FMRI" | head -1 | awk '{print $NF}'
|
|
}
|
|
smf_setSavedMD5() {
|
|
# Save checksum value $2 into service instance $1
|
|
PG="nut-driver-enumerator-generated-checksum"
|
|
PROP="SECTION_CHECKSUM"
|
|
|
|
if [ -n "$1" ]; then
|
|
TARGET_FMRI="nut-driver:$1"
|
|
else
|
|
# Global section
|
|
TARGET_FMRI="nut-driver"
|
|
PROP="SECTION_CHECKSUM_GLOBAL"
|
|
fi
|
|
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" delprop "$PG" || true
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" addpg "$PG" application && \
|
|
/usr/sbin/svccfg -s "$TARGET_FMRI" setprop "$PG/$PROP" = astring: "$2"
|
|
[ $? = 0 ] && echo "OK" || { echo "FAILED to stash the checksum">&2 ; return 1 ; }
|
|
/usr/sbin/svcadm refresh "${TARGET_FMRI}" || return
|
|
}
|
|
smf_restart_upsd() {
|
|
echo "Restarting NUT data server to make sure it knows new configuration..."
|
|
/usr/sbin/svcadm enable "nut-server" 2>/dev/null
|
|
/usr/sbin/svcadm clear "nut-server" 2>/dev/null
|
|
/usr/sbin/svcadm refresh "nut-server" || \
|
|
/usr/sbin/svcadm restart "nut-server"
|
|
}
|
|
smf_restart_drv() {
|
|
echo "Restarting NUT driver instance '$1' to make sure it knows new configuration..."
|
|
/usr/sbin/svcadm enable "nut-driver:$1" 2>/dev/null
|
|
/usr/sbin/svcadm clear "nut-driver:$1" 2>/dev/null
|
|
/usr/sbin/svcadm refresh "nut-driver:$1" || \
|
|
/usr/sbin/svcadm restart "nut-driver:$1"
|
|
}
|
|
|
|
systemd_validFullUnitName() {
|
|
case "$1" in
|
|
*@*.*) echo "$1" ;;
|
|
*@*) echo "$1.service" ;;
|
|
*) echo "$SVCNAME_SYSTEMD@$1.service" ;;
|
|
esac
|
|
}
|
|
systemd_validInstanceName() {
|
|
echo "MD5_`calc_md5 "$1"`"
|
|
}
|
|
systemd_validInstanceSuffixName() {
|
|
echo "$1" | sed -e 's,^.*@,,' -e 's,\.service$,,'
|
|
}
|
|
systemd_registerInstance() {
|
|
# Instance is registered by device section name; ultimate name in systemd may differ
|
|
DEVICE="$1"
|
|
SVCINST="$1"
|
|
/bin/systemctl enable 'nut-driver@'"$DEVICE".service || \
|
|
{ SVCINST="`systemd_validInstanceName "$1"`" && \
|
|
/bin/systemctl enable 'nut-driver@'"$SVCINST".service || return ; }
|
|
echo "Enabled instance: 'nut-driver@$SVCINST' for NUT configuration section '$DEVICE'" >&2
|
|
|
|
DEPSVC=""
|
|
DEPREQ=""
|
|
_MED="`upsconf_getMedia "$DEVICE"`"
|
|
case "$_MED" in
|
|
usb)
|
|
DEPSVC="$DEPSVC_USB_SYSTEMD"
|
|
DEPREQ="$DEPREQ_USB_SYSTEMD" ;;
|
|
network-localhost)
|
|
DEPSVC="$DEPSVC_NET_LOCAL_SYSTEMD"
|
|
DEPREQ="$DEPREQ_NET_LOCAL_SYSTEMD" ;;
|
|
network)
|
|
DEPSVC="$DEPSVC_NET_FULL_SYSTEMD"
|
|
DEPREQ="$DEPREQ_NET_FULL_SYSTEMD" ;;
|
|
serial) ;;
|
|
'') ;;
|
|
*) echo "WARNING: Unexpected NUT media type ignored: '$_MED'" >&2 ;;
|
|
esac
|
|
if [ -n "$DEPSVC" ]; then
|
|
[ -n "$DEPREQ" ] || DEPREQ="#Wants"
|
|
echo "Adding '$DEPREQ'+After dependency for '$SVCINST' on '$DEPSVC'..."
|
|
mkdir -p "${SYSTEMD_CONFPATH}/nut-driver@$SVCINST.service.d" && \
|
|
cat > "${SYSTEMD_CONFPATH}/nut-driver@$SVCINST.service.d/nut-driver-enumerator-generated.conf" <<EOF
|
|
# Customization generated `date -u` by nut-driver-enumerator for NUT device '$DEVICE'
|
|
# DO NOT EDIT: This file would be removed or overwritten by that service
|
|
[Unit]
|
|
Description=Network UPS Tools - device driver for NUT device '$DEVICE'
|
|
${DEPREQ}=${DEPSVC}
|
|
After=${DEPSVC}
|
|
EOF
|
|
[ $? = 0 ] && echo "OK" || echo "FAILED to define the dependency" >&2
|
|
fi
|
|
|
|
systemd_setSavedMD5 "$SVCINST" "`upsconf_getSection_MD5 "$DEVICE"`"
|
|
|
|
if [ "$AUTO_START" = yes ] ; then
|
|
systemd_refreshSupervizor || echo "WARNING: Somehow managed to fail systemd_refreshSupervizor()" >&2
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl start --no-block 'nut-driver@'"$SVCINST".service || return
|
|
echo "Started instance: 'nut-driver@$SVCINST' for NUT configuration section '$DEVICE'" >&2
|
|
fi
|
|
}
|
|
systemd_unregisterInstance() {
|
|
echo "Removing instance: 'nut-driver@$1' ..." >&2
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl stop 'nut-driver@'"$1".service || \
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl stop 'nut-driver@'"$1".service || \
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl stop 'nut-driver@'"$1".service || false
|
|
|
|
/bin/systemctl disable 'nut-driver@'"$1".service
|
|
rm -rf "${SYSTEMD_CONFPATH}/nut-driver@$1.service.d"
|
|
/bin/systemctl reset-failed 'nut-driver@'"$1".service
|
|
}
|
|
systemd_refreshSupervizor() {
|
|
/bin/systemctl daemon-reload
|
|
}
|
|
systemd_listInstances_raw() {
|
|
/bin/systemctl show 'nut-driver@*' -p Id | egrep '=nut-driver' | sed 's,^Id=,,'
|
|
}
|
|
systemd_listInstances() {
|
|
systemd_listInstances_raw | sed -e 's/^.*@//' -e 's/\.service$//' | sort -n
|
|
}
|
|
systemd_getSavedMD5() {
|
|
# Query service instance $1 or global section
|
|
PROP="SECTION_CHECKSUM"
|
|
[ -n "$1" ] || PROP="SECTION_CHECKSUM_GLOBAL"
|
|
[ -s "${SYSTEMD_CONFPATH}/nut-driver@$1.service.d/nut-driver-enumerator-generated-checksum.conf" ] \
|
|
&& grep "Environment='$PROP=" "${SYSTEMD_CONFPATH}/nut-driver@$1.service.d/nut-driver-enumerator-generated-checksum.conf" | sed -e "s,^Environment='$PROP=,," -e "s,'\$,," \
|
|
|| { echo "Did not find '${SYSTEMD_CONFPATH}/nut-driver@$1.service.d/nut-driver-enumerator-generated-checksum.conf' with a $PROP" ; return 1; }
|
|
}
|
|
systemd_setSavedMD5() {
|
|
# Save checksum value $2 into service instance $1
|
|
PROP="SECTION_CHECKSUM"
|
|
[ -n "$1" ] || PROP="SECTION_CHECKSUM_GLOBAL"
|
|
mkdir -p "${SYSTEMD_CONFPATH}/nut-driver@$1.service.d" && \
|
|
cat > "${SYSTEMD_CONFPATH}/nut-driver@$1.service.d/nut-driver-enumerator-generated-checksum.conf" << EOF
|
|
[Service]
|
|
Environment='$PROP=$2'
|
|
EOF
|
|
[ $? = 0 ] && echo "OK" || { echo "FAILED to stash the checksum">&2 ; return 1 ; }
|
|
}
|
|
systemd_restart_upsd() {
|
|
# Do not restart/reload if not already running
|
|
case "`/bin/systemctl is-active "nut-server"`" in
|
|
active|unknown) ;; # unknown meant "starting" in our testing...
|
|
failed) echo "Note: nut-server unit was 'failed' - not disabled by user, so (re)starting it (probably had no config initially)" >&2 ;;
|
|
*) return 0 ;;
|
|
esac
|
|
|
|
echo "Restarting NUT data server to make sure it knows new configuration..."
|
|
# Note: reload is a better way to go about this, so the
|
|
# data service is not interrupted by re-initialization
|
|
# of the daemon. But systemd/systemctl sometimes stalls...
|
|
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl reload-or-restart "nut-server" || \
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl restart "nut-server"
|
|
}
|
|
|
|
systemd_restart_drv() {
|
|
# Do not restart/reload if not already running
|
|
case "`/bin/systemctl is-active "nut-driver@$1"`" in
|
|
active|unknown) ;;
|
|
*) return 0 ;;
|
|
esac
|
|
|
|
echo "Restarting NUT driver instance '$1' to make sure it knows new configuration..."
|
|
|
|
# Full restart, e.g. in case we changed the user= in configs
|
|
$TIMEOUT_CMD $TIMEOUT_ARGS /bin/systemctl restart "nut-driver@$1"
|
|
}
|
|
|
|
upslist_normalizeFile_filter() {
|
|
# See upslist_normalizeFile() detailed comments below; this routine
|
|
# is a pipe worker to prepare the text into a simpler expected form.
|
|
|
|
# Pick the lines which contain a bracket or assignment character,
|
|
# or a single token (certain keywords come as just NUT "flags"),
|
|
# trim leading and trailing whitespace, comment-only lines, and in
|
|
# assignment lines trim the spaces around equality character and
|
|
# quoting characters around assignment of values without whitespaces.
|
|
# Any whitespace characters around a section name (single token that
|
|
# starts the line and is enclosed in brackets) and a trailing comment
|
|
# are dropped. Note that brackets with spaces inside, and brackets
|
|
# that do not start the non-whitespace payload of the line, are not
|
|
# sections.
|
|
egrep -v '(^$|^#)' | \
|
|
sed -e 's,^['"$TABCHAR"'\ ]*,,' \
|
|
-e 's,^\#.*$,,' \
|
|
-e 's,['"$TABCHAR"'\ ]*$,,' \
|
|
-e 's,^\([^=\ '"$TABCHAR"']*\)['"$TABCHAR"'\ ]*=['"$TABCHAR"'\ ]*,\1=,g' \
|
|
-e 's,=\"\([^\ '"$TABCHAR"']*\)\"$,=\1,' \
|
|
-e 's,^\(\[[^]'"$TABCHAR"'\ ]*\]\)['"$TABCHAR"'\ ]*\(#.*\)*$,\1,' \
|
|
| egrep -v '^$' \
|
|
| egrep '([\[\=]|^[^ '"$TABCHAR"']*$|^[^ '"$TABCHAR"']*[ '"$TABCHAR"']*\#.*$)'
|
|
}
|
|
|
|
upslist_normalizeFile() {
|
|
# Read the ups.conf file and find all defined sections (names of
|
|
# configuration blocks for drivers that connect to a certain device
|
|
# using specified protocol and media); normalize section contents
|
|
# as detailed below, to simplify subsequent parsing and comparison.
|
|
|
|
# File contents
|
|
UPSCONF_DATA=""
|
|
UPSCONF_DATA_SDP=""
|
|
if [ -n "$UPSCONF" ] && [ -f "$UPSCONF" ] && [ -r "$UPSCONF" ]; then
|
|
[ ! -s "$UPSCONF" ] \
|
|
&& echo "WARNING: The '$UPSCONF' file exists but is empty" >&2 \
|
|
&& return 0
|
|
# Ok to continue - we may end up removing all instances
|
|
else
|
|
echo "FATAL: The '$UPSCONF' file does not exist or is not readable" >&2
|
|
return 2
|
|
fi
|
|
|
|
# Store a normalized version of NUT configuration file contents.
|
|
# Also use a SDP subset with just section, driver and port info
|
|
# for faster parsing when determining driver-required media etc.
|
|
UPSCONF_DATA="$(upslist_normalizeFile_filter < "$UPSCONF")" \
|
|
&& [ -n "$UPSCONF_DATA" ] \
|
|
&& UPSCONF_DATA_SDP="`egrep '^(\[.*\]|driver=|port=)' << EOF
|
|
$UPSCONF_DATA
|
|
EOF`" \
|
|
|| { echo "Error reading the '$UPSCONF' file or it does not declare any device configurations: nothing left after normalization" >&2
|
|
UPSCONF_DATA=""
|
|
UPSCONF_DATA_SDP=""
|
|
}
|
|
}
|
|
|
|
upslist_normalizeFile_once() {
|
|
# Wrapper that ensures that the parsing is only done once
|
|
# (will re-parse if there were no devices listed on the
|
|
# first time, though)
|
|
[ -z "$UPSCONF_DATA" ] && [ -z "$UPSCONF_DATA_SDP" ] || return 0
|
|
upslist_normalizeFile
|
|
}
|
|
|
|
upslist_readFile() {
|
|
# Use the routine above (unconditionally) to get or update the
|
|
# listing of device sections known at this moment.
|
|
|
|
# List of devices from the config file
|
|
UPSLIST_FILE=""
|
|
if [ "$DO_NORMALIZE_ONCE" = yes ]; then
|
|
upslist_normalizeFile_once || return # Propagate errors upwards
|
|
else
|
|
upslist_normalizeFile || return # Propagate errors upwards
|
|
fi
|
|
|
|
if [ -n "$UPSCONF_DATA" ] ; then
|
|
# Note that section-name brackets should contain a single token
|
|
UPSLIST_FILE="$(echo "$UPSCONF_DATA_SDP" | egrep '^\[[^'"$TABCHAR"'\ ]*\]$' | sed 's,^\[\(.*\)\]$,\1,' | sort -n)" \
|
|
|| UPSLIST_FILE=""
|
|
if [ -z "$UPSLIST_FILE" ] ; then
|
|
echo "Error reading the '$UPSCONF' file or it does not declare any device configurations: no section declarations in parsed normalized contents" >&2
|
|
fi
|
|
fi
|
|
# Ok to continue with empty results - we may end up removing all instances
|
|
}
|
|
|
|
upslist_readFile_once() {
|
|
# Wrapper that ensures that the parsing is only done once
|
|
# (will re-parse if there were no devices listed on the
|
|
# first time, though)
|
|
[ -z "$UPSLIST_FILE" ] || return 0
|
|
DO_NORMALIZE_ONCE=yes upslist_readFile
|
|
}
|
|
|
|
upslist_readSvcs() {
|
|
UPSLIST_SVCS="`$hook_listInstances`" || UPSLIST_SVCS=""
|
|
if [ -z "$UPSLIST_SVCS" ] && [ "$1" != "-" ] ; then
|
|
EXPLAIN=""
|
|
[ -z "$1" ] || EXPLAIN=" - $1"
|
|
echo "Error reading the list of ${SERVICE_FRAMEWORK-} service instances for UPS drivers, or none are defined${EXPLAIN}" >&2
|
|
# Ok to continue - we may end up defining new instances
|
|
fi
|
|
}
|
|
|
|
upslist_debug() {
|
|
for UPSF in "" $UPSLIST_FILE ; do
|
|
upsconf_debug "$UPSF"
|
|
done
|
|
}
|
|
|
|
upslist_addSvcs() {
|
|
# Note: This routine registers service instances for device config sections
|
|
# that are not wrapped currently. Support for redefined previously existing
|
|
# sections - is attained by removing the old service instance elsewhere and
|
|
# recreating it here, since any data could change including the dependency
|
|
# list, etc.
|
|
for UPSF in $UPSLIST_FILE ; do
|
|
if ! common_isRegistered "$UPSF" ; then
|
|
echo "Adding new ${SERVICE_FRAMEWORK} service instance for power device [${UPSF}]..." >&2
|
|
$hook_registerInstance "$UPSF"
|
|
fi
|
|
done
|
|
}
|
|
|
|
upslist_delSvcs() {
|
|
for UPSS in $UPSLIST_SVCS ; do
|
|
if ! common_isFiled "$UPSS" ; then
|
|
echo "Dropping old ${SERVICE_FRAMEWORK} service instance for power device [${UPSS}] which is no longer in config file..." >&2
|
|
$hook_unregisterInstance "$UPSS"
|
|
fi
|
|
done
|
|
}
|
|
|
|
upslist_restartSvcs() {
|
|
for UPSS in $UPSLIST_SVCS ; do
|
|
if common_isFiled "$UPSS" ; then
|
|
$hook_restart_drv "$UPSS"
|
|
fi
|
|
done
|
|
}
|
|
|
|
nut_driver_enumerator_main() {
|
|
################# MAIN PROGRAM by default
|
|
|
|
# Note: do not use the read..._once() here, to ensure that the
|
|
# looped daemon sees the whole picture, which can be new every time
|
|
upslist_readFile || return $?
|
|
#upslist_debug
|
|
upslist_readSvcs "before manipulations"
|
|
|
|
# Test if global config has changed since last run
|
|
RESTART_ALL=no
|
|
upssvcconf_checksum_unchanged "" || { echo "`date -u` : Detected changes in global section of '$UPSCONF', will restart all drivers"; RESTART_ALL=yes; }
|
|
|
|
# Quickly exit if there's nothing to do; note the lists are pre-sorted
|
|
# Otherwise a non-zero exit will be done below
|
|
# Note: We implement testing in detail whether section definitions were
|
|
# changed since last run, as a first step before checking that name
|
|
# lists are still equivalent, because we need to always have the result
|
|
# of the "has it changed?" check as a hit-list of something to remove,
|
|
# while the check for no new device section definitions is just boolean.
|
|
# We can only exit quickly if both there are no changed sections and no
|
|
# new or removed sections since last run.
|
|
NEW_CHECKSUM="`upslist_checksums_unchanged "$UPSLIST_FILE" "$UPSLIST_SVCS"`" \
|
|
&& [ -z "$NEW_CHECKSUM" ] \
|
|
&& upslist_equals "$UPSLIST_FILE" "$UPSLIST_SVCS" \
|
|
&& if [ -z "$DAEMON_SLEEP" -o "${VERBOSE_LOOP}" = yes ] ; then \
|
|
echo "`date -u` : OK: No changes to reconcile between ${SERVICE_FRAMEWORK} service instances and device configurations in '$UPSCONF'" ; \
|
|
fi \
|
|
&& [ "$RESTART_ALL" = no ] && return 0
|
|
|
|
if [ -n "$NEW_CHECKSUM" ]; then
|
|
for UPSS in $NEW_CHECKSUM ; do
|
|
echo "Dropping old ${SERVICE_FRAMEWORK} service instance ${UPSS} whose section in config file has changed..." >&2
|
|
$hook_unregisterInstance "$UPSS"
|
|
done
|
|
upslist_readSvcs "after updating for new config section checksums"
|
|
fi
|
|
|
|
if [ -n "$UPSLIST_SVCS" ]; then
|
|
# Drop services that are not in config file (any more?)
|
|
upslist_delSvcs
|
|
|
|
if [ "$RESTART_ALL" = yes ] && [ "$AUTO_START" = yes ] ; then
|
|
# Here restart only existing services; new ones will (try to)
|
|
# start soon after creation and upsd is handled below
|
|
upslist_restartSvcs
|
|
fi
|
|
fi
|
|
|
|
if [ "$RESTART_ALL" = yes ] ; then
|
|
# Save new checksum of global config
|
|
$hook_setSavedMD5 "" "`upsconf_getSection_MD5 ""`"
|
|
fi
|
|
|
|
if [ -n "$UPSLIST_FILE" ]; then
|
|
# Add services for sections that are in config file but not yet wrapped
|
|
upslist_addSvcs
|
|
$hook_refreshSupervizor
|
|
upslist_readSvcs "after checking for new config sections to define service instances"
|
|
fi
|
|
|
|
upslist_readSvcs
|
|
if [ -n "$UPSLIST_SVCS" ] ; then
|
|
echo "=== The currently defined service instances are:"
|
|
echo "$UPSLIST_SVCS"
|
|
fi
|
|
|
|
if [ -n "$UPSLIST_FILE" ] ; then
|
|
echo "=== The currently defined configurations in '$UPSCONF' are:"
|
|
echo "$UPSLIST_FILE"
|
|
fi
|
|
|
|
# We had some changes to the config file; upsd must be made aware
|
|
if [ "$AUTO_START" = yes ] ; then
|
|
$hook_restart_upsd
|
|
fi
|
|
|
|
# Return 42 if there was a change applied succesfully
|
|
# (but e.g. some services should restart - upsd, maybe upsmon)
|
|
UPSLIST_EQ_RES=0
|
|
upslist_equals "$UPSLIST_FILE" "$UPSLIST_SVCS" || UPSLIST_EQ_RES=$?
|
|
|
|
# File processing and service startups take a while;
|
|
# make sure upsconf did not change while we worked...
|
|
# NOTE: Check this at the last moment to minimize
|
|
# the chance of still not noticing the change made
|
|
# at just the wrong moment.
|
|
UPSCONF_CHECKSUM_END="`calc_md5_file "$UPSCONF"`" || true
|
|
if [ "$UPSCONF_CHECKSUM_END" != "$UPSCONF_CHECKSUM_START" ] ; then
|
|
# NOTE: even if daemonized, the sleep between iterations
|
|
# can be configured into an uncomfortably long lag, so
|
|
# we should re-sync the system config in any case.
|
|
echo "`date -u` : '$UPSCONF' changed while $0 $* was processing its older contents; re-running the script to pick up the late-coming changes"
|
|
# Make sure the cycle does not repeat itself due to diffs
|
|
# from an ages-old state of the file from when we started.
|
|
UPSCONF_CHECKSUM_START="$UPSCONF_CHECKSUM_END"
|
|
( nut_driver_enumerator_main ) ; return $?
|
|
# The "main" routine at the end of recursions will
|
|
# do REPORT_RESTART_42 logic or the error exit-code
|
|
fi
|
|
|
|
if [ "$UPSLIST_EQ_RES" = 0 ] ; then
|
|
echo "`date -u` : OK: No more changes to reconcile between ${SERVICE_FRAMEWORK} service instances and device configurations in '$UPSCONF'"
|
|
[ "${REPORT_RESTART_42-}" = no ] && return 0 || return 42
|
|
fi
|
|
return 13
|
|
}
|
|
|
|
daemonize() (
|
|
# Support (SIG)HUP == signal code 1 to quickly reconfigure,
|
|
# e.g. to request it while the sleep is happening or while
|
|
# "main" is processing an earlier change of the file.
|
|
RECONFIGURE_ASAP=false
|
|
trap 'RECONFIGURE_ASAP=true' 1
|
|
|
|
# Note: this loop would die on errors with config file or
|
|
# inability to ensure that it matches the list of services.
|
|
# If caller did not `export REPORT_RESTART_42=no` then the
|
|
# loop would exit with code 42, and probably trigger restart
|
|
# of the service which wraps this daemon do topple others that
|
|
# depend on it.
|
|
# Note: do not quickly skip the "main" based on full-file
|
|
# checksum refresh, to ensure that whatever is configured
|
|
# gets applied (e.g. if user disabled some services or they
|
|
# died, or some config was not applied due to coding error).
|
|
while nut_driver_enumerator_main ; do
|
|
if $RECONFIGURE_ASAP ; then
|
|
echo "`date -u` : Trapped a SIGHUP during last run of nut_driver_enumerator_main, repeating reconfiguration quickly" >&2
|
|
else
|
|
sleep $DAEMON_SLEEP &
|
|
trap "kill $! ; echo 'Sleep interrupted, processing configs now!'>&2" 1
|
|
wait $!
|
|
fi
|
|
RECONFIGURE_ASAP=false
|
|
trap 'RECONFIGURE_ASAP=true' 1
|
|
done
|
|
exit $?
|
|
)
|
|
|
|
# Save the checksum of ups.conf as early as possible,
|
|
# to test in the end that it is still the same file.
|
|
UPSCONF_CHECKSUM_START="`calc_md5_file "$UPSCONF"`" || true
|
|
|
|
# By default, update wrapping of devices into services
|
|
if [ $# = 0 ]; then
|
|
nut_driver_enumerator_main ; exit $?
|
|
fi
|
|
|
|
if [ $# = 1 ] ; then
|
|
[ -n "$DAEMON_SLEEP" ] || DAEMON_SLEEP=60
|
|
# Note: Not all shells have 'case ... ;&' support
|
|
case "$1" in
|
|
--daemon=*) DAEMON_SLEEP="`echo "$1" | sed 's,^--daemon=,,'`" ;;
|
|
esac
|
|
case "$1" in
|
|
--daemon|--daemon=*)
|
|
daemonize &
|
|
exit $?
|
|
;;
|
|
esac
|
|
fi
|
|
unset DAEMON_SLEEP
|
|
|
|
usage() {
|
|
cat << EOF
|
|
$0 (no args)
|
|
Update wrapping of devices into services
|
|
$0 --daemon(=freq)
|
|
Update wrapping of devices into services in an infinite loop
|
|
Default freq is 60 sec
|
|
$0 --reconfigure
|
|
Stop and un-register all service instances and recreate them
|
|
(e.g. if new dependency template was defined in a new
|
|
version of this script and/or NUT package)
|
|
$0 --get-service-framework
|
|
Print the detected service
|
|
management framework in this OS
|
|
$0 --list-devices
|
|
Print list of devices in NUT config
|
|
$0 --list-services
|
|
Print list of service instances which wrap registered
|
|
NUT devices (full name of service unit)
|
|
$0 --list-instances
|
|
Print list of service instances which wrap registered
|
|
NUT devices (just instance suffix)
|
|
$0 --get-service-for-device DEV
|
|
Print the full name of service unit which wraps a NUT
|
|
device named "DEV"
|
|
$0 --get-device-for-service SVC
|
|
Print the NUT device name for full or instance-suffix name of
|
|
a service unit which wraps it
|
|
$0 --list-services-for-devices
|
|
Print a TAB-separated list of service units and corresponding
|
|
NUT device names which each such unit wraps
|
|
$0 --show-configs|--show-all-configs
|
|
Show the complete normalized list of device configuration blocks
|
|
$0 --show-config DEV
|
|
$0 --show-device-config DEV
|
|
Show configuration block of the specified NUT device
|
|
$0 --show-device-config-value DEV KEY [KEY...]
|
|
Show single configuration key value of the specified NUT device
|
|
For flags, shows the flag name if present in the section
|
|
If several keys or flags are requested, their values are reported
|
|
one per line in the same order (including empty lines for missing
|
|
values); any missing value yields a non-zero exit code.
|
|
EOF
|
|
}
|
|
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
--help|-h|-help) usage; exit 0 ;;
|
|
--get-service-framework) echo "${SERVICE_FRAMEWORK}" ; exit 0 ;;
|
|
--reconfigure)
|
|
upslist_readFile_once || exit $?
|
|
upslist_readSvcs "before manipulations"
|
|
|
|
if [ -n "$UPSLIST_SVCS" ]; then
|
|
for UPSS in $UPSLIST_SVCS ; do
|
|
echo "Dropping old ${SERVICE_FRAMEWORK} service instance for power device [${UPSS}] to reconfigure the service unit..." >&2
|
|
$hook_unregisterInstance "$UPSS"
|
|
done
|
|
upslist_readSvcs "after dropping"
|
|
fi
|
|
|
|
if [ -n "$UPSLIST_FILE" ]; then
|
|
upslist_addSvcs
|
|
upslist_readSvcs "after checking for new config sections to define service instances"
|
|
fi
|
|
|
|
# Save new checksum of global config
|
|
$hook_setSavedMD5 "" "`upsconf_getSection_MD5 ""`"
|
|
|
|
# Service units were manipulated, including saving of checksums;
|
|
# refresh the service management daemon if needed
|
|
$hook_refreshSupervizor
|
|
|
|
if [ -n "$UPSLIST_SVCS" ] ; then
|
|
echo "=== The currently defined service instances are:"
|
|
echo "$UPSLIST_SVCS"
|
|
fi
|
|
|
|
if [ -n "$UPSLIST_FILE" ] ; then
|
|
echo "=== The currently defined configurations in '$UPSCONF' are:"
|
|
echo "$UPSLIST_FILE"
|
|
fi
|
|
|
|
# We had some changes to the config file; upsd must be made aware
|
|
if [ "$AUTO_START" = yes ] ; then
|
|
$hook_restart_upsd
|
|
fi
|
|
|
|
# Return 42 if there was a change applied succesfully
|
|
# (but e.g. some services should restart - upsd, maybe upsmon)
|
|
UPSLIST_EQ_RES=0
|
|
upslist_equals "$UPSLIST_FILE" "$UPSLIST_SVCS" || UPSLIST_EQ_RES=$?
|
|
|
|
# File processing and service startups take a while;
|
|
# make sure upsconf did not change while we worked...
|
|
# NOTE: Check this at the last moment to minimize
|
|
# the chance of still not noticing the change made
|
|
# at just the wrong moment.
|
|
UPSCONF_CHECKSUM_END="`calc_md5_file "$UPSCONF"`" || true
|
|
if [ "$UPSCONF_CHECKSUM_END" != "$UPSCONF_CHECKSUM_START" ] ; then
|
|
echo "`date -u` : '$UPSCONF' changed while $0 $* was processing its older contents; re-running the script to pick up the late-coming changes"
|
|
$0 ; exit $?
|
|
# The "main" routine will do REPORT_RESTART_42 logic too
|
|
fi
|
|
|
|
if [ "$UPSLIST_EQ_RES" = 0 ] ; then
|
|
echo "`date -u` : OK: No more changes to reconcile between ${SERVICE_FRAMEWORK} service instances and device configurations in '$UPSCONF'"
|
|
[ "${REPORT_RESTART_42-}" = no ] && exit 0 || exit 42
|
|
fi
|
|
|
|
exit 13
|
|
;;
|
|
--list-devices)
|
|
upslist_readFile_once && \
|
|
if [ -n "$UPSLIST_FILE" ] ; then
|
|
echo "=== The currently defined configurations in '$UPSCONF' are:" >&2
|
|
echo "$UPSLIST_FILE"
|
|
exit 0
|
|
fi
|
|
echo "No devices detected in '$UPSCONF'" >&2
|
|
exit 1
|
|
;;
|
|
--list-services)
|
|
UPSLIST_SVCS_RAW="`$hook_listInstances_raw`" && \
|
|
if [ -n "$UPSLIST_SVCS_RAW" ] ; then
|
|
echo "=== The currently defined service units are:" >&2
|
|
echo "$UPSLIST_SVCS_RAW"
|
|
exit 0
|
|
fi
|
|
echo "No service units detected" >&2
|
|
exit 1
|
|
;;
|
|
--list-instances)
|
|
upslist_readSvcs "by user request" && \
|
|
if [ -n "$UPSLIST_SVCS" ] ; then
|
|
echo "=== The currently defined service instances are:" >&2
|
|
echo "$UPSLIST_SVCS"
|
|
exit 0
|
|
fi
|
|
echo "No service instances detected" >&2
|
|
exit 1
|
|
;;
|
|
--get-service-for-device) [ -z "$2" ] && echo "Device name argument required" >&2 && exit 1
|
|
DEV="$2"
|
|
upslist_readSvcs "by user request" && [ -n "$UPSLIST_SVCS" ] \
|
|
|| { echo "No service instances detected" >&2 ; exit 1; }
|
|
UPSLIST_SVCS_RAW="`$hook_listInstances_raw`" && [ -n "$UPSLIST_SVCS_RAW" ] \
|
|
|| { echo "No service units detected" >&2 ; exit 1; }
|
|
vINST="`$hook_validInstanceName "$DEV"`"
|
|
vUNITD="`$hook_validFullUnitName "$DEV"`"
|
|
vUNITI="`$hook_validFullUnitName "$vINST"`"
|
|
# First pass over simple verbatim names
|
|
for INST in $UPSLIST_SVCS ; do
|
|
if [ "$INST" = "$DEV" ] ; then
|
|
for UNIT in $UPSLIST_SVCS_RAW ; do
|
|
if [ "$UNIT" = "$vUNITD" ] ; then
|
|
echo "$UNIT"
|
|
exit 0
|
|
fi
|
|
done
|
|
fi
|
|
done
|
|
for INST in $UPSLIST_SVCS ; do
|
|
if [ "$INST" = "$vINST" ] ; then
|
|
for UNIT in $UPSLIST_SVCS_RAW ; do
|
|
if [ "$UNIT" = "$vUNITI" ] ; then
|
|
echo "$UNIT"
|
|
exit 0
|
|
fi
|
|
done
|
|
fi
|
|
done
|
|
echo "No service instances detected that match device '$2'" >&2
|
|
exit 1
|
|
;;
|
|
--get-device-for-service) [ -z "$2" ] && echo "Service (instance) name argument required" >&2 && exit 1
|
|
# Instance name can be a hash or "native" NUT section name
|
|
SVC="`$hook_validInstanceSuffixName "$2"`"
|
|
case "$SVC" in
|
|
MD5_*) ;; # fall through to the bulk of code
|
|
*) upslist_readFile_once || exit $?
|
|
echo "$UPSLIST_FILE" | egrep "^$SVC\$"
|
|
exit $?
|
|
;;
|
|
esac
|
|
FINAL_RES=0
|
|
OUT="`"$0" --list-services-for-devices`" && [ -n "$OUT" ] || FINAL_RES=$?
|
|
if [ "$FINAL_RES" = 0 ]; then
|
|
echo "$OUT" | grep "$SVC" | ( \
|
|
while read _SVC _DEV ; do
|
|
_SVC="`$hook_validInstanceSuffixName "${_SVC}"`" || exit
|
|
[ "${_SVC}" = "${SVC}" ] && echo "$_DEV" && exit 0
|
|
done ; exit 1 ) && exit 0
|
|
fi
|
|
echo "No service instance '$2' was detected that matches a NUT device" >&2
|
|
exit 1
|
|
;;
|
|
--list-services-for-devices)
|
|
FINAL_RES=0
|
|
upslist_readFile_once && [ -n "$UPSLIST_FILE" ] \
|
|
|| { echo "No devices detected in '$UPSCONF'" >&2 ; exit 1 ; }
|
|
upslist_readSvcs "by user request" && [ -n "$UPSLIST_SVCS" ] \
|
|
|| { echo "No service instances detected" >&2 ; exit 1; }
|
|
UPSLIST_SVCS_RAW="`$hook_listInstances_raw`" && [ -n "$UPSLIST_SVCS_RAW" ] \
|
|
|| { echo "No service units detected" >&2 ; exit 1; }
|
|
for DEV in $UPSLIST_FILE ; do
|
|
vINST="`$hook_validInstanceName "$DEV"`"
|
|
vUNITD="`$hook_validFullUnitName "$DEV"`"
|
|
vUNITI="`$hook_validFullUnitName "$vINST"`"
|
|
# First pass over simple verbatim names
|
|
for INST in $UPSLIST_SVCS ; do
|
|
if [ "$INST" = "$DEV" ] ; then
|
|
for UNIT in $UPSLIST_SVCS_RAW ; do
|
|
if [ "$UNIT" = "$vUNITD" ] ; then
|
|
printf '%s\t%s\n' "$UNIT" "$DEV"
|
|
continue 3
|
|
fi
|
|
done
|
|
fi
|
|
done
|
|
for INST in $UPSLIST_SVCS ; do
|
|
if [ "$INST" = "$vINST" ] ; then
|
|
for UNIT in $UPSLIST_SVCS_RAW ; do
|
|
if [ "$UNIT" = "$vUNITI" ] ; then
|
|
printf '%s\t%s\n' "$UNIT" "$DEV"
|
|
continue 3
|
|
fi
|
|
done
|
|
fi
|
|
done
|
|
echo "WARNING: no service instances detected that match device '$DEV'" >&2
|
|
FINAL_RES=1
|
|
done
|
|
exit $FINAL_RES
|
|
;;
|
|
--show-configs|--show-device-configs|--show-all-configs|--show-all-device-configs)
|
|
RES=0
|
|
upslist_readFile_once || RES=$?
|
|
[ "$RES" != 0 ] && { echo "ERROR: upslist_readFile_once () failed with code $RES" >&2; exit $RES; }
|
|
[ -n "$UPSLIST_FILE" ] \
|
|
|| { echo "WARNING: No devices detected in '$UPSCONF'" >&2 ; RES=1 ; }
|
|
echo "$UPSCONF_DATA"
|
|
exit $RES
|
|
;;
|
|
--show-config|--show-device-config)
|
|
[ -z "$2" ] && echo "WARNING: Device name argument empty, will show global config" >&2
|
|
DEV="$2"
|
|
upsconf_getSection "$DEV"
|
|
exit $?
|
|
;;
|
|
--show-config-value|--show-device-config-value)
|
|
[ -z "$3" ] && echo "At least one configuration key name argument is required" >&2 && exit 1
|
|
[ -z "$2" ] && echo "WARNING: Device name argument empty, will show global config" >&2
|
|
DEV="$2"
|
|
shift 2
|
|
upsconf_getValue "$DEV" "$@"
|
|
exit $?
|
|
;;
|
|
upsconf_debug) # Not public, not in usage()
|
|
[ -z "$2" ] && echo "Device name argument required" >&2 && exit 1
|
|
upsconf_debug "$2"
|
|
exit $?
|
|
;;
|
|
upslist_debug) # Not public, not in usage()
|
|
upslist_readFile_once || exit
|
|
upslist_debug
|
|
exit $?
|
|
;;
|
|
*) echo "Unrecognized argument: $1" >&2 ; exit 1 ;;
|
|
esac
|
|
shift
|
|
done
|