+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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 "logind.h"
+#include "logind-session.h"
+#include "dbus-common.h"
+#include "util.h"
+
+#define BUS_SESSION_INTERFACE \
+ " <interface name=\"org.freedesktop.login1.Session\">\n" \
+ " <method name=\"Terminate\"/>\n" \
+ " <method name=\"Activate\"/>\n" \
+ " <property name=\"Id\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"User\" type=\"(uo)\" access=\"read\"/>\n" \
+ " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"ControlGroupPath\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"VTNr\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Seat\" type=\"(so)\" access=\"read\"/>\n" \
+ " <property name=\"TTY\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Display\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Remote\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"RemoteHost\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"RemoteUser\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Leader\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Audit\" type=\"u\" access=\"read\"/>\n" \
+ " <property name=\"Type\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"Active\" type=\"b\" access=\"read\"/>\n" \
+ " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
+ " <property name=\"KillProcesses\" type=\"b\" access=\"read\"/>\n" \
+ " </interface>\n"
+
+#define INTROSPECTION \
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
+ "<node>\n" \
+ BUS_SESSION_INTERFACE \
+ BUS_PROPERTIES_INTERFACE \
+ BUS_PEER_INTERFACE \
+ BUS_INTROSPECTABLE_INTERFACE \
+ "</node>\n"
+
+#define INTERFACES_LIST \
+ BUS_GENERIC_INTERFACES_LIST \
+ "org.freedesktop.login1.Session\0"
+
+static int bus_session_append_seat(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Session *s = data;
+ const char *id, *path;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ if (s->seat) {
+ id = s->seat->id;
+ path = p = seat_bus_path(s->seat);
+
+ if (!p)
+ return -ENOMEM;
+ } else {
+ id = "";
+ path = "/";
+ }
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ free(p);
+
+ if (!dbus_message_iter_close_container(i, &sub))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_session_append_user(DBusMessageIter *i, const char *property, void *data) {
+ DBusMessageIter sub;
+ Session *s = data;
+ char *p = NULL;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ return -ENOMEM;
+
+ p = user_bus_path(s->user);
+ if (!p)
+ return -ENOMEM;
+
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &s->user->uid) ||
+ !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;
+}
+
+static int bus_session_append_active(DBusMessageIter *i, const char *property, void *data) {
+ Session *s = data;
+ bool b;
+
+ assert(i);
+ assert(property);
+ assert(s);
+
+ b = session_is_active(s);
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_type, session_type, SessionType);
+
+static int get_session_for_path(Manager *m, const char *path, Session **_s) {
+ Session *s;
+ char *id;
+
+ assert(m);
+ assert(path);
+ assert(_s);
+
+ if (!startswith(path, "/org/freedesktop/login1/session/"))
+ return -EINVAL;
+
+ id = bus_path_unescape(path + 32);
+ if (!id)
+ return -ENOMEM;
+
+ s = hashmap_get(m->sessions, id);
+ free(id);
+
+ if (!s)
+ return -ENOENT;
+
+ *_s = s;
+ return 0;
+}
+
+static DBusHandlerResult session_message_dispatch(
+ Session *s,
+ DBusConnection *connection,
+ DBusMessage *message) {
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.login1.Session", "Id", bus_property_append_string, "s", s->id },
+ { "org.freedesktop.login1.Session", "User", bus_session_append_user, "(uo)", s },
+ { "org.freedesktop.login1.Session", "Name", bus_property_append_string, "s", s->user->name },
+ { "org.freedesktop.login1.Session", "ControlGroupPath", bus_property_append_string, "s", s->cgroup_path },
+ { "org.freedesktop.login1.Session", "VTNr", bus_property_append_uint32, "u", &s->vtnr },
+ { "org.freedesktop.login1.Session", "Seat", bus_session_append_seat, "(so)", s },
+ { "org.freedesktop.login1.Session", "TTY", bus_property_append_string, "s", s->tty },
+ { "org.freedesktop.login1.Session", "Display", bus_property_append_string, "s", s->display },
+ { "org.freedesktop.login1.Session", "Remote", bus_property_append_bool, "b", &s->remote },
+ { "org.freedesktop.login1.Session", "RemoteUser", bus_property_append_string, "s", s->remote_user },
+ { "org.freedesktop.login1.Session", "RemoteHost", bus_property_append_string, "s", s->remote_host },
+ { "org.freedesktop.login1.Session", "Leader", bus_property_append_pid, "u", &s->leader },
+ { "org.freedesktop.login1.Session", "Audit", bus_property_append_uint32, "u", &s->audit_id },
+ { "org.freedesktop.login1.Session", "Type", bus_session_append_type, "s", &s->type },
+ { "org.freedesktop.login1.Session", "Active", bus_session_append_active, "b", s },
+ { "org.freedesktop.login1.Session", "Controllers", bus_property_append_strv, "as", s->controllers },
+ { "org.freedesktop.login1.Session", "ResetControllers", bus_property_append_strv, "as", s->reset_controllers },
+ { "org.freedesktop.login1.Session", "KillProcesses", bus_property_append_bool, "b", &s->kill_processes },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ assert(s);
+ assert(connection);
+ assert(message);
+
+ return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
+}
+
+static DBusHandlerResult session_message_handler(
+ DBusConnection *connection,
+ DBusMessage *message,
+ void *userdata) {
+
+ Manager *m = userdata;
+ Session *s;
+ int r;
+
+ r = get_session_for_path(m, dbus_message_get_path(message), &s);
+ if (r < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT) {
+ DBusError e;
+
+ dbus_error_init(&e);
+ dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown session");
+ return bus_send_error_reply(connection, message, &e, r);
+ }
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ return session_message_dispatch(s, connection, message);
+}
+
+const DBusObjectPathVTable bus_session_vtable = {
+ .message_function = session_message_handler
+};
+
+char *session_bus_path(Session *s) {
+ char *t, *r;
+
+ assert(s);
+
+ t = bus_path_escape(s->id);
+ if (!t)
+ return NULL;
+
+ r = strappend("/org/freedesktop/login1/session/", t);
+ free(t);
+
+ return r;
+}
~ianmdlvl / elogind.git / commitdiff