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# Utilities and shortcuts for recipes providing D-Bus services.
# Variables:
# DBUS_PACKAGES ?= "${PN}"
# The list of packages to which files should be added.
#
# DBUS_SERVICE_${PN} += "org.openbmc.Foo.service"
# A list of dbus service names. The class will look for a
# dbus configuration file with the same base name with .conf
# appended. If one is found, it is added to the package
# and used verbatim. If it is not found, a default one
# (with very open permissions) is generated and used.
#
# Additionally the class will instantiate obmc-phosphor-systemd
# with any SYSTEMD_SERVICE_%s variables translated appropriately.
#
# If a service begins with 'dbus-' DBus activation will be
# configured. The class will look for an activation file
# with the 'dbus-' prefix removed. If found, it is added to
# the package and used verbatim. If it is not found, a default
# one is generated and used.
inherit dbus-dir
inherit obmc-phosphor-utils
RDEPENDS_${PN}_append_class-target = " dbus-perms"
DBUS_PACKAGES ?= "${PN}"
_INSTALL_DBUS_CONFIGS=""
_DEFAULT_DBUS_CONFIGS=""
_INSTALL_DBUS_ACTIVATIONS=""
_DEFAULT_DBUS_ACTIVATIONS=""
python dbus_do_postinst() {
def make_default_dbus_config(d, unit, user):
bus = unit.base
if unit.is_template:
bus = '%s*' % bus
path = d.getVar('D', True)
path += d.getVar('dbus_system_confdir', True)
with open('%s/%s.conf' % (path, unit.base), 'w+') as fd:
fd.write('<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"\n')
fd.write(' "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">\n')
fd.write('<busconfig>\n')
fd.write(' <policy user="%s">\n' % user)
fd.write(' <allow own="%s"/>\n' % bus)
fd.write(' <allow send_destination="%s"/>\n' % bus)
fd.write(' </policy>\n')
fd.write('</busconfig>\n')
fd.close()
def make_default_dbus_activation(d, unit, user):
dest = unit.base
sd_unit = unit.name
if unit.is_instance:
dest = '%s.%s' % (unit.base, unit.instance)
sd_unit = '%s@%s' % (unit.base, unit.instance)
path = d.getVar('D', True)
path += d.getVar('dbus_system_servicesdir', True)
with open('%s/%s.service' % (path, dest), 'w+') as fd:
fd.write('[D-BUS Service]\n')
fd.write('Name=%s\n' % dest)
fd.write('Exec=/bin/false\n')
fd.write('User=%s\n' % user)
fd.write('SystemdService=dbus-%s.service\n' % sd_unit)
fd.close()
for service_user in listvar_to_list(d, '_DEFAULT_DBUS_CONFIGS'):
service, user = service_user.split(':')
make_default_dbus_config(d, SystemdUnit(service), user)
for service_user in listvar_to_list(d, '_DEFAULT_DBUS_ACTIVATIONS'):
service, user = service_user.split(':')
make_default_dbus_activation(d, SystemdUnit(service), user)
}
python() {
searchpaths = d.getVar('FILESPATH', True)
def get_user(d, service, pkg):
user = d.getVar(
'SYSTEMD_USER_%s' % service, True)
if user is None:
user = d.getVar(
'SYSTEMD_USER_%s' % pkg, True) or 'root'
return user
def add_dbus_config(d, unit, pkg):
path = bb.utils.which(searchpaths, '%s.conf' % unit.base)
if not os.path.isfile(path):
user = get_user(d, unit.name, pkg)
set_append(d, '_DEFAULT_DBUS_CONFIGS', '%s:%s' % (
unit.name, user))
else:
set_append(d, 'SRC_URI', 'file://%s.conf' % unit.base)
set_append(d, '_INSTALL_DBUS_CONFIGS', '%s.conf' % unit.base)
set_append(d, 'FILES_%s' % pkg, '%s%s.conf' \
% (d.getVar('dbus_system_confdir', True), unit.base))
def add_dbus_activation(d, unit, pkg):
if not unit.is_activated or unit.is_template:
return
search_match = '%s.service' % unit.base
if unit.is_instance:
search_match = '%s.%s.service' % (unit.base, unit.instance)
path = bb.utils.which(searchpaths, search_match)
if not os.path.isfile(path):
user = get_user(d, unit.base, pkg)
set_append(d, '_DEFAULT_DBUS_ACTIVATIONS', '%s:%s' % (
unit.name, user))
else:
set_append(d, 'SRC_URI', 'file://%s' % search_match)
set_append(d, '_INSTALL_DBUS_ACTIVATIONS', search_match)
set_append(d, 'FILES_%s' % pkg, '%s%s' \
% (d.getVar('dbus_system_servicesdir', True), search_match))
for pkg in listvar_to_list(d, 'DBUS_PACKAGES'):
if pkg not in (d.getVar('SYSTEMD_PACKAGES', True) or ''):
set_append(d, 'SYSTEMD_PACKAGES', pkg)
svc = listvar_to_list(d, 'DBUS_SERVICE_%s' % pkg)
svc = [SystemdUnit(x) for x in svc]
inst = [x for x in svc if x.is_instance]
tmpl = [x.template for x in svc if x.is_instance]
tmpl = list(set(tmpl))
tmpl = [SystemdUnit(x) for x in tmpl]
svc = [x for x in svc if not x.is_instance]
for unit in inst:
set_append(
d, 'SYSTEMD_SERVICE_%s' % pkg, unit.name)
for unit in tmpl + svc:
add_dbus_config(d, unit, pkg)
add_dbus_activation(d, unit, pkg)
set_append(
d, 'SYSTEMD_SERVICE_%s' % pkg, unit.name)
set_append(d, 'SYSTEMD_SUBSTITUTIONS',
'BUSNAME:%s:%s' % (unit.base, unit.name))
}
do_install_append() {
# install the dbus configuration files
[ -z "${_INSTALL_DBUS_CONFIGS}" ] && \
[ -z "${_DEFAULT_DBUS_CONFIGS}" ] || \
install -d ${D}${dbus_system_confdir}
for c in ${_INSTALL_DBUS_CONFIGS}; do
install -m 0644 ${WORKDIR}/$c \
${D}${dbus_system_confdir}$c
done
# install the dbus activation files
[ -z "${_INSTALL_DBUS_ACTIVATIONS}" ] && \
[ -z "${_DEFAULT_DBUS_ACTIVATIONS}" ] || \
install -d ${D}${dbus_system_servicesdir}
for s in ${_INSTALL_DBUS_ACTIVATIONS}; do
install -m 0644 ${WORKDIR}/$s\
${D}${dbus_system_servicesdir}$s
done
}
do_install[postfuncs] += "dbus_do_postinst"
inherit obmc-phosphor-systemd
|
