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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"
# A list of dbus service names. The class will look for a
# dbus configuration file with the same 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.
#
# DBUS_ACTIVATED_SERVICE_${PN} += "org.openbmc.Foo"
# A list of services that should have dbus activation configured.
# Services that appear here need not be in DBUS_SERVICE_%s.
# If used, the search pattern for the systemd unit file is
# changed to be dbus-%s.service. The class will look for a
# dbus activation file with the same name with .service appended.
# If one is found, it added to the package and used verbatim.
# If it is not found, a default one is generated and used.
# DBUS_USER_${PN}_org.openbmc.Foo = "dbususer"
# The user a service should be configured to run as. If unspecified
# no User property is added.
inherit dbus-dir
inherit obmc-phosphor-utils
RDEPENDS_${PN} += "dbus-perms"
DBUS_PACKAGES ?= "${PN}"
_INSTALL_DBUS_CONFIGS=""
_DEFAULT_DBUS_CONFIGS=""
_INSTALL_DBUS_ACTIVATIONS=""
_DEFAULT_DBUS_ACTIVATIONS=""
python dbus_do_postinst() {
def make_default_dbus_config(d, service, user):
path = d.getVar('D', True)
path += d.getVar('dbus_system_confdir', True)
with open('%s/%s.conf' % (path, service), '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' % service)
fd.write(' <allow send_destination="%s"/>\n' % service)
fd.write(' </policy>\n')
fd.write('</busconfig>\n')
fd.close()
def make_default_dbus_activation(d, service, user):
path = d.getVar('D', True)
path += d.getVar('dbus_system_servicesdir', True)
with open('%s/%s.service' % (path, service), 'w+') as fd:
fd.write('[D-BUS Service]\n')
fd.write('Name=%s\n' % service)
fd.write('Exec=/bin/false\n')
fd.write('User=%s\n' % user)
fd.write('SystemdService=dbus-%s.service\n' % service)
fd.close()
for service_user in listvar_to_list(d, '_DEFAULT_DBUS_CONFIGS'):
make_default_dbus_config(d, *service_user.split(':'))
for service_user in listvar_to_list(d, '_DEFAULT_DBUS_ACTIVATIONS'):
make_default_dbus_activation(d, *service_user.split(':'))
}
python() {
searchpaths = d.getVar('FILESPATH', True)
def add_dbus_config(d, service, pkg):
path = bb.utils.which(searchpaths, '%s.conf' % service)
if not os.path.isfile(path):
user = d.getVar(
'DBUS_USER_%s_%s' % (pkg, service), True) or 'root'
set_append(d, '_DEFAULT_DBUS_CONFIGS', '%s:%s' % (
service, user))
else:
set_append(d, 'SRC_URI', 'file://%s.conf' % service)
set_append(d, '_INSTALL_DBUS_CONFIGS', '%s.conf' % service)
set_append(d, 'FILES_%s' % pkg, '%s%s.conf' \
% (d.getVar('dbus_system_confdir', True), service))
def add_sd_unit(d, prefix, service, pkg):
set_append(
d, 'SYSTEMD_SERVICE_%s' % pkg, '%s%s.service' % (
prefix, service))
set_append(d, 'SYSTEMD_SUBSTITUTIONS_%s%s.service' % (prefix, service),
'BUSNAME:%s' % service)
def add_sd_user(d, prefix, service, pkg):
user = d.getVar(
'DBUS_USER_%s_%s' % (pkg, service), True)
if user:
set_append(d, 'SYSTEMD_USER_%s_%s%s.service' % (
pkg, prefix, service), user)
def add_dbus_activation(d, service, pkg):
path = bb.utils.which(searchpaths, '%s.service' % service)
if not os.path.isfile(path):
user = d.getVar(
'DBUS_USER_%s_%s' % (pkg, service), True) or 'root'
set_append(d, '_DEFAULT_DBUS_ACTIVATIONS', '%s:%s' % (
service, user))
else:
set_append(d, 'SRC_URI', 'file://%s.service' % service)
set_append(d, '_INSTALL_DBUS_ACTIVATIONS', '%s.service' % service)
set_append(d, 'FILES_%s' % pkg, '%s%s.service' \
% (d.getVar('dbus_system_servicesdir', True), service))
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)
services = listvar_to_list(d, 'DBUS_SERVICE_%s' % pkg)
auto = listvar_to_list(d, 'DBUS_ACTIVATED_SERVICE_%s' % pkg)
for service in set(services).union(auto):
prefix = 'dbus-' if service in auto else ''
add_dbus_config(d, service, pkg)
add_sd_unit(d, prefix, service, pkg)
add_sd_user(d, prefix, service, pkg)
if prefix:
add_dbus_activation(d, service, pkg)
}
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
|
