5948ee7cef
Hey, here is a patch to fix a small typo in the systemd dbus introspection data. I found this while trying to explore the systemd dbus API via bash completion with gdbus. You should try this, it is really fun, and, evidently, helps to find some bugs... Matthias
888 lines
40 KiB
C
888 lines
40 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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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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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include "dbus.h"
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#include "log.h"
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#include "dbus-manager.h"
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#include "strv.h"
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#include "bus-errors.h"
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#define BUS_MANAGER_INTERFACE \
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" <interface name=\"org.freedesktop.systemd1.Manager\">\n" \
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" <method name=\"GetUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"GetUnitByPID\">\n" \
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" <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
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" <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"LoadUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"StartUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"StopUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ReloadUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"RestartUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"TryRestartUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ReloadOrRestartUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ReloadOrTryRestartUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ResetMaintenanceUnit\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" </method>\n" \
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" <method name=\"GetJob\">\n" \
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" <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
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" <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ClearJobs\"/>\n" \
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" <method name=\"ResetMaintenance\"/>\n" \
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" <method name=\"ListUnits\">\n" \
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" <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"ListJobs\">\n" \
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" <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"Subscribe\"/>\n" \
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" <method name=\"Unsubscribe\"/>\n" \
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" <method name=\"Dump\"/>\n" \
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" <method name=\"CreateSnapshot\">\n" \
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" <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
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" <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
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" <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
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" </method>\n" \
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" <method name=\"Reload\"/>\n" \
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" <method name=\"Reexecute\"/>\n" \
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" <method name=\"Exit\"/>\n" \
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" <method name=\"SetEnvironment\">\n" \
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" <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
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" </method>\n" \
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" <method name=\"UnsetEnvironment\">\n" \
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" <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
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" </method>\n" \
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" <signal name=\"UnitNew\">\n" \
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" <arg name=\"id\" type=\"s\"/>\n" \
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" <arg name=\"unit\" type=\"o\"/>\n" \
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" </signal>\n" \
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" <signal name=\"UnitRemoved\">\n" \
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" <arg name=\"id\" type=\"s\"/>\n" \
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" <arg name=\"unit\" type=\"o\"/>\n" \
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" </signal>\n" \
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" <signal name=\"JobNew\">\n" \
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" <arg name=\"id\" type=\"u\"/>\n" \
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" <arg name=\"job\" type=\"o\"/>\n" \
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" </signal>\n" \
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" <signal name=\"JobRemoved\">\n" \
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" <arg name=\"id\" type=\"u\"/>\n" \
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" <arg name=\"job\" type=\"o\"/>\n" \
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" <arg name=\"success\" type=\"b\"/>\n" \
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" </signal>" \
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" <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
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" <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
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" <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
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" <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n" \
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" <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
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" <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
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" <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
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" <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
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" <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
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" <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
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" <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
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" <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
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" <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
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" <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n" \
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" <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
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" <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
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" </interface>\n"
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#define INTROSPECTION_BEGIN \
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DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
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"<node>\n" \
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BUS_MANAGER_INTERFACE \
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BUS_PROPERTIES_INTERFACE \
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BUS_INTROSPECTABLE_INTERFACE
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#define INTROSPECTION_END \
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"</node>\n"
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const char bus_manager_interface[] = BUS_MANAGER_INTERFACE;
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static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
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static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
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const char *t;
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assert(m);
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assert(i);
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assert(property);
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t = log_target_to_string(log_get_target());
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if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
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return -ENOMEM;
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return 0;
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}
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static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
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const char *t;
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assert(m);
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assert(i);
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assert(property);
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t = log_level_to_string(log_get_max_level());
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if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
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return -ENOMEM;
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return 0;
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}
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static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
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uint32_t u;
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assert(m);
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assert(i);
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assert(property);
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u = hashmap_size(m->units);
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if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
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return -ENOMEM;
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return 0;
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}
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static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
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uint32_t u;
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assert(m);
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assert(i);
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assert(property);
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u = hashmap_size(m->jobs);
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if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
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return -ENOMEM;
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return 0;
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}
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static const char *message_get_sender_with_fallback(DBusMessage *m) {
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const char *s;
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assert(m);
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if ((s = dbus_message_get_sender(m)))
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return s;
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/* When the message came in from a direct connection the
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* message will have no sender. We fix that here. */
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return ":no-sender";
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}
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static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
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Manager *m = data;
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const BusProperty properties[] = {
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{ "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
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{ "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
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{ "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
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{ "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
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{ "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
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{ "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
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{ "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
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{ "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
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{ "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
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{ "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
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{ "org.freedesktop.systemd1.Manager", "SysVConsole", bus_property_append_bool, "b", &m->sysv_console },
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{ "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
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{ "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
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{ "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
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{ "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
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{ "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
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{ NULL, NULL, NULL, NULL, NULL }
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};
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int r;
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DBusError error;
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DBusMessage *reply = NULL;
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char * path = NULL;
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JobType job_type = _JOB_TYPE_INVALID;
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bool reload_if_possible = false;
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assert(connection);
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assert(message);
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assert(m);
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dbus_error_init(&error);
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if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
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const char *name;
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Unit *u;
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if (!dbus_message_get_args(
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message,
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&error,
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DBUS_TYPE_STRING, &name,
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DBUS_TYPE_INVALID))
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return bus_send_error_reply(m, connection, message, &error, -EINVAL);
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if (!(u = manager_get_unit(m, name))) {
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dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
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return bus_send_error_reply(m, connection, message, &error, -ENOENT);
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}
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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if (!(path = unit_dbus_path(u)))
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goto oom;
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if (!dbus_message_append_args(
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reply,
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DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
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Unit *u;
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uint32_t pid;
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if (!dbus_message_get_args(
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message,
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&error,
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DBUS_TYPE_UINT32, &pid,
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DBUS_TYPE_INVALID))
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return bus_send_error_reply(m, connection, message, &error, -EINVAL);
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if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
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dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
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return bus_send_error_reply(m, connection, message, &error, -ENOENT);
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}
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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if (!(path = unit_dbus_path(u)))
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goto oom;
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if (!dbus_message_append_args(
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reply,
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DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
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const char *name;
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Unit *u;
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if (!dbus_message_get_args(
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message,
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&error,
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DBUS_TYPE_STRING, &name,
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DBUS_TYPE_INVALID))
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return bus_send_error_reply(m, connection, message, &error, -EINVAL);
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if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
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return bus_send_error_reply(m, connection, message, &error, r);
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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if (!(path = unit_dbus_path(u)))
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goto oom;
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if (!dbus_message_append_args(
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reply,
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DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
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job_type = JOB_START;
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else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
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job_type = JOB_STOP;
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else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
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job_type = JOB_RELOAD;
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else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
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job_type = JOB_RESTART;
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else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
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job_type = JOB_TRY_RESTART;
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else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
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reload_if_possible = true;
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job_type = JOB_RESTART;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
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reload_if_possible = true;
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job_type = JOB_TRY_RESTART;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
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uint32_t id;
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Job *j;
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if (!dbus_message_get_args(
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message,
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&error,
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DBUS_TYPE_UINT32, &id,
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DBUS_TYPE_INVALID))
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return bus_send_error_reply(m, connection, message, &error, -EINVAL);
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if (!(j = manager_get_job(m, id))) {
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dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
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return bus_send_error_reply(m, connection, message, &error, -ENOENT);
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}
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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if (!(path = job_dbus_path(j)))
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goto oom;
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if (!dbus_message_append_args(
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reply,
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DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
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manager_clear_jobs(m);
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenance")) {
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manager_reset_maintenance(m);
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if (!(reply = dbus_message_new_method_return(message)))
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goto oom;
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} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenanceUnit")) {
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const char *name;
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Unit *u;
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if (!dbus_message_get_args(
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message,
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&error,
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DBUS_TYPE_STRING, &name,
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DBUS_TYPE_INVALID))
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return bus_send_error_reply(m, connection, message, &error, -EINVAL);
|
|
|
|
if (!(u = manager_get_unit(m, name))) {
|
|
dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
|
|
return bus_send_error_reply(m, connection, message, &error, -ENOENT);
|
|
}
|
|
|
|
unit_reset_maintenance(u);
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
|
|
DBusMessageIter iter, sub;
|
|
Iterator i;
|
|
Unit *u;
|
|
const char *k;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
dbus_message_iter_init_append(reply, &iter);
|
|
|
|
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
|
|
goto oom;
|
|
|
|
HASHMAP_FOREACH_KEY(u, k, m->units, i) {
|
|
char *u_path, *j_path;
|
|
const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
|
|
DBusMessageIter sub2;
|
|
uint32_t job_id;
|
|
Unit *f;
|
|
|
|
if (k != u->meta.id)
|
|
continue;
|
|
|
|
if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
|
|
goto oom;
|
|
|
|
description = unit_description(u);
|
|
load_state = unit_load_state_to_string(u->meta.load_state);
|
|
active_state = unit_active_state_to_string(unit_active_state(u));
|
|
sub_state = unit_sub_state_to_string(u);
|
|
|
|
f = unit_following(u);
|
|
following = f ? f->meta.id : "";
|
|
|
|
if (!(u_path = unit_dbus_path(u)))
|
|
goto oom;
|
|
|
|
if (u->meta.job) {
|
|
job_id = (uint32_t) u->meta.job->id;
|
|
|
|
if (!(j_path = job_dbus_path(u->meta.job))) {
|
|
free(u_path);
|
|
goto oom;
|
|
}
|
|
|
|
sjob_type = job_type_to_string(u->meta.job->type);
|
|
} else {
|
|
job_id = 0;
|
|
j_path = u_path;
|
|
sjob_type = "";
|
|
}
|
|
|
|
if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
|
|
free(u_path);
|
|
if (u->meta.job)
|
|
free(j_path);
|
|
goto oom;
|
|
}
|
|
|
|
free(u_path);
|
|
if (u->meta.job)
|
|
free(j_path);
|
|
|
|
if (!dbus_message_iter_close_container(&sub, &sub2))
|
|
goto oom;
|
|
}
|
|
|
|
if (!dbus_message_iter_close_container(&iter, &sub))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
|
|
DBusMessageIter iter, sub;
|
|
Iterator i;
|
|
Job *j;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
dbus_message_iter_init_append(reply, &iter);
|
|
|
|
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
|
|
goto oom;
|
|
|
|
HASHMAP_FOREACH(j, m->jobs, i) {
|
|
char *u_path, *j_path;
|
|
const char *state, *type;
|
|
uint32_t id;
|
|
DBusMessageIter sub2;
|
|
|
|
if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
|
|
goto oom;
|
|
|
|
id = (uint32_t) j->id;
|
|
state = job_state_to_string(j->state);
|
|
type = job_type_to_string(j->type);
|
|
|
|
if (!(j_path = job_dbus_path(j)))
|
|
goto oom;
|
|
|
|
if (!(u_path = unit_dbus_path(j->unit))) {
|
|
free(j_path);
|
|
goto oom;
|
|
}
|
|
|
|
if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
|
|
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
|
|
free(j_path);
|
|
free(u_path);
|
|
goto oom;
|
|
}
|
|
|
|
free(j_path);
|
|
free(u_path);
|
|
|
|
if (!dbus_message_iter_close_container(&sub, &sub2))
|
|
goto oom;
|
|
}
|
|
|
|
if (!dbus_message_iter_close_container(&iter, &sub))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
|
|
char *client;
|
|
Set *s;
|
|
|
|
if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
|
|
if (!(s = set_new(string_hash_func, string_compare_func)))
|
|
goto oom;
|
|
|
|
if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
|
|
set_free(s);
|
|
goto oom;
|
|
}
|
|
}
|
|
|
|
if (!(client = strdup(message_get_sender_with_fallback(message))))
|
|
goto oom;
|
|
|
|
if ((r = set_put(s, client)) < 0) {
|
|
free(client);
|
|
return bus_send_error_reply(m, connection, message, NULL, r);
|
|
}
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
|
|
char *client;
|
|
|
|
if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
|
|
dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
|
|
return bus_send_error_reply(m, connection, message, &error, -ENOENT);
|
|
}
|
|
|
|
free(client);
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
|
|
FILE *f;
|
|
char *dump = NULL;
|
|
size_t size;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
if (!(f = open_memstream(&dump, &size)))
|
|
goto oom;
|
|
|
|
manager_dump_units(m, f, NULL);
|
|
manager_dump_jobs(m, f, NULL);
|
|
|
|
if (ferror(f)) {
|
|
fclose(f);
|
|
free(dump);
|
|
goto oom;
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
|
|
free(dump);
|
|
goto oom;
|
|
}
|
|
|
|
free(dump);
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
|
|
const char *name;
|
|
dbus_bool_t cleanup;
|
|
Snapshot *s;
|
|
|
|
if (!dbus_message_get_args(
|
|
message,
|
|
&error,
|
|
DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_BOOLEAN, &cleanup,
|
|
DBUS_TYPE_INVALID))
|
|
return bus_send_error_reply(m, connection, message, &error, -EINVAL);
|
|
|
|
if (name && name[0] == 0)
|
|
name = NULL;
|
|
|
|
if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
|
|
return bus_send_error_reply(m, connection, message, &error, r);
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
if (!(path = unit_dbus_path(UNIT(s))))
|
|
goto oom;
|
|
|
|
if (!dbus_message_append_args(
|
|
reply,
|
|
DBUS_TYPE_OBJECT_PATH, &path,
|
|
DBUS_TYPE_INVALID))
|
|
goto oom;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
|
|
char *introspection = NULL;
|
|
FILE *f;
|
|
Iterator i;
|
|
Unit *u;
|
|
Job *j;
|
|
const char *k;
|
|
size_t size;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
/* We roll our own introspection code here, instead of
|
|
* relying on bus_default_message_handler() because we
|
|
* need to generate our introspection string
|
|
* dynamically. */
|
|
|
|
if (!(f = open_memstream(&introspection, &size)))
|
|
goto oom;
|
|
|
|
fputs(INTROSPECTION_BEGIN, f);
|
|
|
|
HASHMAP_FOREACH_KEY(u, k, m->units, i) {
|
|
char *p;
|
|
|
|
if (k != u->meta.id)
|
|
continue;
|
|
|
|
if (!(p = bus_path_escape(k))) {
|
|
fclose(f);
|
|
free(introspection);
|
|
goto oom;
|
|
}
|
|
|
|
fprintf(f, "<node name=\"unit/%s\"/>", p);
|
|
free(p);
|
|
}
|
|
|
|
HASHMAP_FOREACH(j, m->jobs, i)
|
|
fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
|
|
|
|
fputs(INTROSPECTION_END, f);
|
|
|
|
if (ferror(f)) {
|
|
fclose(f);
|
|
free(introspection);
|
|
goto oom;
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
if (!introspection)
|
|
goto oom;
|
|
|
|
if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
|
|
free(introspection);
|
|
goto oom;
|
|
}
|
|
|
|
free(introspection);
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
|
|
|
|
assert(!m->queued_message);
|
|
|
|
/* Instead of sending the reply back right away, we
|
|
* just remember that we need to and then send it
|
|
* after the reload is finished. That way the caller
|
|
* knows when the reload finished. */
|
|
|
|
if (!(m->queued_message = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
m->queued_message_connection = connection;
|
|
m->exit_code = MANAGER_RELOAD;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
m->exit_code = MANAGER_REEXECUTE;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
|
|
|
|
if (m->running_as == MANAGER_SYSTEM) {
|
|
dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
|
|
return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
|
|
}
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
m->exit_code = MANAGER_EXIT;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
|
|
char **l = NULL, **e = NULL;
|
|
|
|
if ((r = bus_parse_strv(message, &l)) < 0) {
|
|
if (r == -ENOMEM)
|
|
goto oom;
|
|
|
|
return bus_send_error_reply(m, connection, message, NULL, r);
|
|
}
|
|
|
|
e = strv_env_merge(2, m->environment, l);
|
|
strv_free(l);
|
|
|
|
if (!e)
|
|
goto oom;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message))) {
|
|
strv_free(e);
|
|
goto oom;
|
|
}
|
|
|
|
strv_free(m->environment);
|
|
m->environment = e;
|
|
|
|
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
|
|
char **l = NULL, **e = NULL;
|
|
|
|
if ((r = bus_parse_strv(message, &l)) < 0) {
|
|
if (r == -ENOMEM)
|
|
goto oom;
|
|
|
|
return bus_send_error_reply(m, connection, message, NULL, r);
|
|
}
|
|
|
|
e = strv_env_delete(m->environment, 1, l);
|
|
strv_free(l);
|
|
|
|
if (!e)
|
|
goto oom;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
strv_free(m->environment);
|
|
m->environment = e;
|
|
|
|
} else
|
|
return bus_default_message_handler(m, connection, message, NULL, properties);
|
|
|
|
if (job_type != _JOB_TYPE_INVALID) {
|
|
const char *name, *smode;
|
|
JobMode mode;
|
|
Job *j;
|
|
Unit *u;
|
|
|
|
if (!dbus_message_get_args(
|
|
message,
|
|
&error,
|
|
DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_STRING, &smode,
|
|
DBUS_TYPE_INVALID))
|
|
return bus_send_error_reply(m, connection, message, &error, -EINVAL);
|
|
|
|
if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
|
|
dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
|
|
return bus_send_error_reply(m, connection, message, &error, -EINVAL);
|
|
}
|
|
|
|
if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
|
|
return bus_send_error_reply(m, connection, message, &error, r);
|
|
|
|
if (reload_if_possible && unit_can_reload(u)) {
|
|
if (job_type == JOB_RESTART)
|
|
job_type = JOB_RELOAD_OR_START;
|
|
else if (job_type == JOB_TRY_RESTART)
|
|
job_type = JOB_RELOAD;
|
|
}
|
|
|
|
if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
|
|
(job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
|
|
((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
|
|
(u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
|
|
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
|
|
return bus_send_error_reply(m, connection, message, &error, -EPERM);
|
|
}
|
|
|
|
if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
|
|
return bus_send_error_reply(m, connection, message, &error, r);
|
|
|
|
if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
|
|
goto oom;
|
|
|
|
j->bus = connection;
|
|
|
|
if (!(reply = dbus_message_new_method_return(message)))
|
|
goto oom;
|
|
|
|
if (!(path = job_dbus_path(j)))
|
|
goto oom;
|
|
|
|
if (!dbus_message_append_args(
|
|
reply,
|
|
DBUS_TYPE_OBJECT_PATH, &path,
|
|
DBUS_TYPE_INVALID))
|
|
goto oom;
|
|
}
|
|
|
|
free(path);
|
|
|
|
if (reply) {
|
|
if (!dbus_connection_send(connection, reply, NULL))
|
|
goto oom;
|
|
|
|
dbus_message_unref(reply);
|
|
}
|
|
|
|
return DBUS_HANDLER_RESULT_HANDLED;
|
|
|
|
oom:
|
|
free(path);
|
|
|
|
if (reply)
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_error_free(&error);
|
|
|
|
return DBUS_HANDLER_RESULT_NEED_MEMORY;
|
|
}
|
|
|
|
const DBusObjectPathVTable bus_manager_vtable = {
|
|
.message_function = bus_manager_message_handler
|
|
};
|