/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
#include <errno.h>
#include "dbus.h"
#include "log.h"
+#include "dbus-unit.h"
-static const char introspection[] =
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
- "<node>"
- " <!-- you suck -->"
- " <interface name=\"org.freedesktop.systemd1.Unit\">"
- " <property name=\"Id\" type=\"s\" access=\"read\"/>"
- " <property name=\"Description\" type=\"s\" access=\"read\"/>"
- " <property name=\"LoadState\" type=\"s\" access=\"read\"/>"
- " <property name=\"ActiveState\" type=\"s\" access=\"read\"/>"
- " </interface>"
- BUS_PROPERTIES_INTERFACE
- BUS_INTROSPECTABLE_INTERFACE
- "</node>";
-
-static int bus_unit_append_id(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+int bus_unit_append_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ char *t;
+ Iterator j;
+ DBusMessageIter sub;
Unit *u = data;
- const char *id;
- assert(m);
- assert(i);
- assert(property);
- assert(u);
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "s", &sub))
+ return -ENOMEM;
- id = unit_id(u);
+ SET_FOREACH(t, u->meta.names, j)
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t))
+ return -ENOMEM;
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &id))
+ if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
-static int bus_unit_append_description(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+int bus_unit_append_description(Manager *m, DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *d;
return 0;
}
-static int bus_unit_append_load_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_unit_append_load_state, unit_load_state, UnitLoadState);
+
+int bus_unit_append_active_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *state;
assert(property);
assert(u);
- state = unit_load_state_to_string(u->meta.load_state);
+ state = unit_active_state_to_string(unit_active_state(u));
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
return -ENOMEM;
return 0;
}
-static int bus_unit_append_active_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+int bus_unit_append_sub_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *state;
assert(property);
assert(u);
- state = unit_active_state_to_string(unit_active_state(u));
+ state = unit_sub_state_to_string(u);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
return -ENOMEM;
return 0;
}
+int bus_unit_append_can_start(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ dbus_bool_t b;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ b = unit_can_start(u);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int bus_unit_append_can_reload(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ dbus_bool_t b;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ b = unit_can_reload(u);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int bus_unit_append_job(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ DBusMessageIter sub;
+ char *p;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ if (u->meta.job) {
+
+ if (!(p = job_dbus_path(u->meta.job)))
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->meta.job->id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ return -ENOMEM;
+ }
+ } else {
+ uint32_t id = 0;
+
+ /* No job, so let's fill in some placeholder
+ * data. Since we need to fill in a valid path we
+ * simple point to ourselves. */
+
+ if (!(p = unit_dbus_path(u)))
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ return -ENOMEM;
+ }
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int bus_unit_append_default_cgroup(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ char *t;
+ CGroupBonding *cgb;
+ bool success;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ if ((cgb = unit_get_default_cgroup(u))) {
+ if (!(t = cgroup_bonding_to_string(cgb)))
+ return -ENOMEM;
+ } else
+ t = (char*) "";
+
+ success = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t);
+
+ if (cgb)
+ free(t);
+
+ return success ? 0 : -ENOMEM;
+}
+
+int bus_unit_append_cgroups(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ CGroupBonding *cgb;
+ DBusMessageIter sub;
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "s", &sub))
+ return -ENOMEM;
+
+ LIST_FOREACH(by_unit, cgb, u->meta.cgroup_bondings) {
+ char *t;
+ bool success;
+
+ if (!(t = cgroup_bonding_to_string(cgb)))
+ return -ENOMEM;
+
+ success = dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t);
+ free(t);
+
+ if (!success)
+ return -ENOMEM;
+ }
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_unit_append_kill_mode, kill_mode, KillMode);
+
static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusMessage *message) {
+ DBusMessage *reply = NULL;
+ Manager *m = u->meta.manager;
+ DBusError error;
+ JobType job_type = _JOB_TYPE_INVALID;
+
+ dbus_error_init(&error);
+
+ if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Start"))
+ job_type = JOB_START;
+ else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Stop"))
+ job_type = JOB_STOP;
+ else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Reload"))
+ job_type = JOB_RELOAD;
+ else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Restart"))
+ job_type = JOB_RESTART;
+ else if (UNIT_VTABLE(u)->bus_message_handler)
+ return UNIT_VTABLE(u)->bus_message_handler(u, message);
+ else
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+ if (job_type != _JOB_TYPE_INVALID) {
+ const char *smode;
+ JobMode mode;
+ Job *j;
+ int r;
+ char *path;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &smode,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(m, message, &error, -EINVAL);
+
+ if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID)
+ return bus_send_error_reply(m, message, NULL, -EINVAL);
+
+ if ((r = manager_add_job(m, job_type, u, mode, true, &j)) < 0)
+ return bus_send_error_reply(m, message, NULL, r);
+
+ 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;
+ }
+
+ if (reply) {
+ if (!dbus_connection_send(m->api_bus, reply, NULL))
+ goto oom;
+
+ dbus_message_unref(reply);
+ }
- const BusProperty properties[] = {
- { "org.freedesktop.systemd1.Unit", "Id", bus_unit_append_id, "s", u },
- { "org.freedesktop.systemd1.Unit", "Description", bus_unit_append_description, "s", u },
- { "org.freedesktop.systemd1.Unit", "LoadState", bus_unit_append_load_state, "s", u },
- { "org.freedesktop.systemd1.Unit", "ActiveState", bus_unit_append_active_state, "s", u },
- { NULL, NULL, NULL, NULL, NULL }
- };
+ return DBUS_HANDLER_RESULT_HANDLED;
- return bus_default_message_handler(u->meta.manager, message, introspection, properties);
+oom:
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
static DBusHandlerResult bus_unit_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
const DBusObjectPathVTable bus_unit_vtable = {
.message_function = bus_unit_message_handler
};
+
+void bus_unit_send_change_signal(Unit *u) {
+ char *p = NULL;
+ DBusMessage *m = NULL;
+
+ assert(u);
+ assert(u->meta.in_dbus_queue);
+
+ LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta);
+ u->meta.in_dbus_queue = false;
+
+ if (set_isempty(u->meta.manager->subscribed))
+ return;
+
+ if (!(p = unit_dbus_path(u)))
+ goto oom;
+
+ if (u->meta.sent_dbus_new_signal) {
+ /* Send a change signal */
+
+ if (!(m = dbus_message_new_signal(p, "org.freedesktop.systemd1.Unit", "Changed")))
+ goto oom;
+ } else {
+ /* Send a new signal */
+
+ if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitNew")))
+ goto oom;
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &u->meta.id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ goto oom;
+ }
+
+ if (!dbus_connection_send(u->meta.manager->api_bus, m, NULL))
+ goto oom;
+
+ free(p);
+ dbus_message_unref(m);
+
+ u->meta.sent_dbus_new_signal = true;
+
+ return;
+
+oom:
+ free(p);
+
+ if (m)
+ dbus_message_unref(m);
+
+ log_error("Failed to allocate unit change/new signal.");
+}
+
+void bus_unit_send_removed_signal(Unit *u) {
+ char *p = NULL;
+ DBusMessage *m = NULL;
+
+ assert(u);
+
+ if (set_isempty(u->meta.manager->subscribed) || !u->meta.sent_dbus_new_signal)
+ return;
+
+ if (!(p = unit_dbus_path(u)))
+ goto oom;
+
+ if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitRemoved")))
+ goto oom;
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &u->meta.id,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID))
+ goto oom;
+
+ if (!dbus_connection_send(u->meta.manager->api_bus, m, NULL))
+ goto oom;
+
+ free(p);
+ dbus_message_unref(m);
+
+ return;
+
+oom:
+ free(p);
+
+ if (m)
+ dbus_message_unref(m);
+
+ log_error("Failed to allocate unit remove signal.");
+}
~ianmdlvl / elogind.git / blobdiff