summaryrefslogtreecommitdiff
path: root/src/core/dbus-scope.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/dbus-scope.c')
-rw-r--r--src/core/dbus-scope.c162
1 files changed, 162 insertions, 0 deletions
diff --git a/src/core/dbus-scope.c b/src/core/dbus-scope.c
new file mode 100644
index 0000000000..1497b76761
--- /dev/null
+++ b/src/core/dbus-scope.c
@@ -0,0 +1,162 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+
+#include "dbus-unit.h"
+#include "dbus-common.h"
+#include "dbus-cgroup.h"
+#include "dbus-kill.h"
+#include "selinux-access.h"
+#include "dbus-scope.h"
+
+#define BUS_SCOPE_INTERFACE \
+ " <interface name=\"org.freedesktop.systemd1.Scope\">\n" \
+ " <property name=\"TimeoutStopUSec\" type=\"t\" access=\"read\"/>\n" \
+ BUS_KILL_CONTEXT_INTERFACE \
+ BUS_CGROUP_CONTEXT_INTERFACE \
+ " <property name=\"Result\" type=\"s\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_UNIT_INTERFACE \
+ BUS_SCOPE_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_UNIT_INTERFACES_LIST \
+ "org.freedesktop.systemd1.Scope\0"
+
+const char bus_scope_interface[] _introspect_("Scope") = BUS_SCOPE_INTERFACE;
+
+static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_scope_append_scope_result, scope_result, ScopeResult);
+
+static const BusProperty bus_scope_properties[] = {
+ { "TimeoutStopUSec", bus_property_append_usec, "t", offsetof(Scope, timeout_stop_usec) },
+ { "Result", bus_scope_append_scope_result, "s", offsetof(Scope, result) },
+ {}
+};
+
+DBusHandlerResult bus_scope_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
+ Scope *s = SCOPE(u);
+
+ const BusBoundProperties bps[] = {
+ { "org.freedesktop.systemd1.Unit", bus_unit_properties, u },
+ { "org.freedesktop.systemd1.Scope", bus_scope_properties, s },
+ { "org.freedesktop.systemd1.Scope", bus_cgroup_context_properties, &s->cgroup_context },
+ { "org.freedesktop.systemd1.Scope", bus_kill_context_properties, &s->kill_context },
+ {}
+ };
+
+ SELINUX_UNIT_ACCESS_CHECK(u, c, message, "status");
+
+ return bus_default_message_handler(c, message, INTROSPECTION, INTERFACES_LIST, bps);
+}
+
+static int bus_scope_set_transient_properties(
+ Scope *s,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ int r;
+
+ assert(name);
+ assert(s);
+ assert(i);
+
+ if (streq(name, "PIDs")) {
+ DBusMessageIter sub;
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(i) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ r = set_ensure_allocated(&s->pids, trivial_hash_func, trivial_compare_func);
+ if (r < 0)
+ return r;
+
+ dbus_message_iter_recurse(i, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32) {
+ uint32_t pid;
+
+ dbus_message_iter_get_basic(&sub, &pid);
+
+ if (pid <= 1)
+ return -EINVAL;
+
+ r = set_put(s->pids, LONG_TO_PTR(pid));
+ if (r < 0 && r != -EEXIST)
+ return r;
+
+ dbus_message_iter_next(&sub);
+ }
+
+ if (set_size(s->pids) <= 0)
+ return -EINVAL;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int bus_scope_set_property(
+ Unit *u,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ Scope *s = SCOPE(u);
+ int r;
+
+ assert(name);
+ assert(u);
+ assert(i);
+
+ r = bus_cgroup_set_property(u, &s->cgroup_context, name, i, mode, error);
+ if (r != 0)
+ return r;
+
+ if (u->load_state == UNIT_STUB) {
+ /* While we are created we still accept PIDs */
+
+ r = bus_scope_set_transient_properties(s, name, i, mode, error);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int bus_scope_commit_properties(Unit *u) {
+ assert(u);
+
+ unit_realize_cgroup(u);
+ return 0;
+}