diff options
Diffstat (limited to 'src/login/logind-session-dbus.c')
| -rw-r--r-- | src/login/logind-session-dbus.c | 590 |
1 files changed, 0 insertions, 590 deletions
diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c deleted file mode 100644 index ef73cd434a..0000000000 --- a/src/login/logind-session-dbus.c +++ /dev/null @@ -1,590 +0,0 @@ -/*-*- 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 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 <string.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" \ - " <method name=\"Lock\"/>\n" \ - " <method name=\"Unlock\"/>\n" \ - " <method name=\"SetIdleHint\">\n" \ - " <arg name=\"b\" type=\"b\"/>\n" \ - " </method>\n" \ - " <method name=\"Kill\">\n" \ - " <arg name=\"who\" type=\"s\"/>\n" \ - " <arg name=\"signal\" type=\"s\"/>\n" \ - " </method>\n" \ - " <signal name=\"Lock\"/>\n" \ - " <signal name=\"Unlock\"/>\n" \ - " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \ - " <property name=\"User\" type=\"(uo)\" access=\"read\"/>\n" \ - " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \ - " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \ - " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \ - " <property name=\"DefaultControlGroup\" 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=\"Service\" 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=\"Class\" type=\"s\" access=\"read\"/>\n" \ - " <property name=\"Active\" type=\"b\" access=\"read\"/>\n" \ - " <property name=\"State\" type=\"s\" 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" \ - " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \ - " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \ - " <property name=\"IdleSinceHintMonotonic\" type=\"t\" 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; - User *u = data; - char *p = NULL; - - assert(i); - assert(property); - assert(u); - - if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub)) - return -ENOMEM; - - p = user_bus_path(u); - if (!p) - return -ENOMEM; - - if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->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; - dbus_bool_t 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 int bus_session_append_idle_hint(DBusMessageIter *i, const char *property, void *data) { - Session *s = data; - int b; - - assert(i); - assert(property); - assert(s); - - b = session_get_idle_hint(s, NULL) > 0; - if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b)) - return -ENOMEM; - - return 0; -} - -static int bus_session_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) { - Session *s = data; - dual_timestamp t; - uint64_t u; - int r; - - assert(i); - assert(property); - assert(s); - - r = session_get_idle_hint(s, &t); - if (r < 0) - return r; - - u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; - - if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u)) - return -ENOMEM; - - return 0; -} - -static int bus_session_append_default_cgroup(DBusMessageIter *i, const char *property, void *data) { - Session *s = data; - char *t; - int r; - bool success; - - assert(i); - assert(property); - assert(s); - - r = cg_join_spec(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, &t); - if (r < 0) - return r; - - success = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t); - free(t); - - return success ? 0 : -ENOMEM; -} - -static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_type, session_type, SessionType); -static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_class, session_class, SessionClass); - -static int bus_session_append_state(DBusMessageIter *i, const char *property, void *data) { - Session *s = data; - const char *state; - - assert(i); - assert(property); - assert(s); - - state = session_state_to_string(session_get_state(s)); - - if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state)) - return -ENOMEM; - - return 0; -} - -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 const BusProperty bus_login_session_properties[] = { - { "Id", bus_property_append_string, "s", offsetof(Session, id), true }, - { "Timestamp", bus_property_append_usec, "t", offsetof(Session, timestamp.realtime) }, - { "TimestampMonotonic", bus_property_append_usec, "t", offsetof(Session, timestamp.monotonic) }, - { "DefaultControlGroup", bus_session_append_default_cgroup, "s", 0, }, - { "VTNr", bus_property_append_uint32, "u", offsetof(Session, vtnr) }, - { "Seat", bus_session_append_seat, "(so)", 0 }, - { "TTY", bus_property_append_string, "s", offsetof(Session, tty), true }, - { "Display", bus_property_append_string, "s", offsetof(Session, display), true }, - { "Remote", bus_property_append_bool, "b", offsetof(Session, remote) }, - { "RemoteUser", bus_property_append_string, "s", offsetof(Session, remote_user), true }, - { "RemoteHost", bus_property_append_string, "s", offsetof(Session, remote_host), true }, - { "Service", bus_property_append_string, "s", offsetof(Session, service), true }, - { "Leader", bus_property_append_pid, "u", offsetof(Session, leader) }, - { "Audit", bus_property_append_uint32, "u", offsetof(Session, audit_id) }, - { "Type", bus_session_append_type, "s", offsetof(Session, type) }, - { "Class", bus_session_append_class, "s", offsetof(Session, class) }, - { "Active", bus_session_append_active, "b", 0 }, - { "State", bus_session_append_state, "s", 0 }, - { "Controllers", bus_property_append_strv, "as", offsetof(Session, controllers), true }, - { "ResetControllers", bus_property_append_strv, "as", offsetof(Session, reset_controllers), true }, - { "KillProcesses", bus_property_append_bool, "b", offsetof(Session, kill_processes) }, - { "IdleHint", bus_session_append_idle_hint, "b", 0 }, - { "IdleSinceHint", bus_session_append_idle_hint_since, "t", 0 }, - { "IdleSinceHintMonotonic", bus_session_append_idle_hint_since, "t", 0 }, - { NULL, } -}; - -static const BusProperty bus_login_session_user_properties[] = { - { "User", bus_session_append_user, "(uo)", 0 }, - { "Name", bus_property_append_string, "s", offsetof(User, name), true }, - { NULL, } -}; - -static DBusHandlerResult session_message_dispatch( - Session *s, - DBusConnection *connection, - DBusMessage *message) { - - DBusError error; - DBusMessage *reply = NULL; - int r; - - assert(s); - assert(connection); - assert(message); - - dbus_error_init(&error); - - if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Terminate")) { - - r = session_stop(s); - if (r < 0) - return bus_send_error_reply(connection, message, NULL, r); - - reply = dbus_message_new_method_return(message); - if (!reply) - goto oom; - - } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Activate")) { - - r = session_activate(s); - if (r < 0) - return bus_send_error_reply(connection, message, NULL, r); - - reply = dbus_message_new_method_return(message); - if (!reply) - goto oom; - - } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Lock") || - dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Unlock")) { - - if (session_send_lock(s, streq(dbus_message_get_member(message), "Lock")) < 0) - goto oom; - - reply = dbus_message_new_method_return(message); - if (!reply) - goto oom; - - } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "SetIdleHint")) { - dbus_bool_t b; - unsigned long ul; - - if (!dbus_message_get_args( - message, - &error, - DBUS_TYPE_BOOLEAN, &b, - DBUS_TYPE_INVALID)) - return bus_send_error_reply(connection, message, &error, -EINVAL); - - ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error); - if (ul == (unsigned long) -1) - return bus_send_error_reply(connection, message, &error, -EIO); - - if (ul != 0 && ul != s->user->uid) - return bus_send_error_reply(connection, message, NULL, -EPERM); - - session_set_idle_hint(s, b); - - reply = dbus_message_new_method_return(message); - if (!reply) - goto oom; - - } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Kill")) { - const char *swho; - int32_t signo; - KillWho who; - - if (!dbus_message_get_args( - message, - &error, - DBUS_TYPE_STRING, &swho, - DBUS_TYPE_INT32, &signo, - DBUS_TYPE_INVALID)) - return bus_send_error_reply(connection, message, &error, -EINVAL); - - if (isempty(swho)) - who = KILL_ALL; - else { - who = kill_who_from_string(swho); - if (who < 0) - return bus_send_error_reply(connection, message, &error, -EINVAL); - } - - if (signo <= 0 || signo >= _NSIG) - return bus_send_error_reply(connection, message, &error, -EINVAL); - - r = session_kill(s, who, signo); - if (r < 0) - return bus_send_error_reply(connection, message, NULL, r); - - reply = dbus_message_new_method_return(message); - if (!reply) - goto oom; - - } else { - const BusBoundProperties bps[] = { - { "org.freedesktop.login1.Session", bus_login_session_properties, s }, - { "org.freedesktop.login1.Session", bus_login_session_user_properties, s->user }, - { NULL, } - }; - return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps); - } - - if (reply) { - if (!dbus_connection_send(connection, reply, NULL)) - goto oom; - - dbus_message_unref(reply); - } - - return DBUS_HANDLER_RESULT_HANDLED; - -oom: - if (reply) - dbus_message_unref(reply); - - dbus_error_free(&error); - - return DBUS_HANDLER_RESULT_NEED_MEMORY; -} - -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; -} - -int session_send_signal(Session *s, bool new_session) { - DBusMessage *m; - int r = -ENOMEM; - char *p = NULL; - - assert(s); - - m = dbus_message_new_signal("/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - new_session ? "SessionNew" : "SessionRemoved"); - - if (!m) - return -ENOMEM; - - p = session_bus_path(s); - if (!p) - goto finish; - - if (!dbus_message_append_args( - m, - DBUS_TYPE_STRING, &s->id, - DBUS_TYPE_OBJECT_PATH, &p, - DBUS_TYPE_INVALID)) - goto finish; - - if (!dbus_connection_send(s->manager->bus, m, NULL)) - goto finish; - - r = 0; - -finish: - dbus_message_unref(m); - free(p); - - return r; -} - -int session_send_changed(Session *s, const char *properties) { - DBusMessage *m; - int r = -ENOMEM; - char *p = NULL; - - assert(s); - - if (!s->started) - return 0; - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - m = bus_properties_changed_new(p, "org.freedesktop.login1.Session", properties); - if (!m) - goto finish; - - if (!dbus_connection_send(s->manager->bus, m, NULL)) - goto finish; - - r = 0; - -finish: - if (m) - dbus_message_unref(m); - free(p); - - return r; -} - -int session_send_lock(Session *s, bool lock) { - DBusMessage *m; - bool b; - char *p; - - assert(s); - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - m = dbus_message_new_signal(p, "org.freedesktop.login1.Session", lock ? "Lock" : "Unlock"); - free(p); - - if (!m) - return -ENOMEM; - - b = dbus_connection_send(s->manager->bus, m, NULL); - dbus_message_unref(m); - - if (!b) - return -ENOMEM; - - return 0; -} - -int session_send_lock_all(Manager *m, bool lock) { - Session *session; - Iterator i; - int r = 0; - - assert(m); - - HASHMAP_FOREACH(session, m->sessions, i) { - int k; - - k = session_send_lock(session, lock); - if (k < 0) - r = k; - } - - return r; -} |