diff options
Diffstat (limited to 'src/logind-dbus.c')
| -rw-r--r-- | src/logind-dbus.c | 295 |
1 files changed, 293 insertions, 2 deletions
diff --git a/src/logind-dbus.c b/src/logind-dbus.c index 662ffd0be5..10a826bc94 100644 --- a/src/logind-dbus.c +++ b/src/logind-dbus.c @@ -21,9 +21,11 @@ #include <errno.h> #include <string.h> +#include <unistd.h> #include "logind.h" #include "dbus-common.h" +#include "strv.h" #define BUS_MANAGER_INTERFACE \ " <interface name=\"org.freedesktop.login1.Manager\">\n" \ @@ -51,6 +53,7 @@ " <method name=\"CreateSession\">\n" \ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \ " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \ + " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \ " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \ " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \ " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \ @@ -60,9 +63,10 @@ " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \ " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \ " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \ - " <arg name=\"kill_processes\" type=\"as\" direction=\"in\"/>\n" \ + " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \ " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \ " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \ + " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \ " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \ " </method>\n" \ " <method name=\"ActivateSession\">\n" \ @@ -161,6 +165,285 @@ static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *pr return 0; } +static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) { + Session *session = NULL; + User *user = NULL; + const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service; + uint32_t uid, leader, audit_id = 0; + dbus_bool_t remote, kill_processes; + char **controllers = NULL, **reset_controllers = NULL; + SessionType t; + Seat *s; + DBusMessageIter iter; + int r; + char *id, *p; + int vtnr = -1; + int pipe_fds[2] = { -1, -1 }; + DBusMessage *reply = NULL; + bool b; + + assert(m); + assert(message); + assert(_reply); + + if (!dbus_message_iter_init(message, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &uid); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &leader); + + if (leader <= 0 || + !dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &service); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &type); + t = session_type_from_string(type); + + if (t < 0 || + !dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &seat); + + if (isempty(seat)) + s = NULL; + else { + s = hashmap_get(m->seats, seat); + if (!s) + return -ENOENT; + } + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &tty); + + if (tty_is_vc(tty)) { + + if (!s) + s = m->vtconsole; + else if (s != m->vtconsole) + return -EINVAL; + + vtnr = vtnr_from_tty(tty); + + if (vtnr <= 0) + return vtnr < 0 ? vtnr : -EINVAL; + + } else if (s == m->vtconsole) + return -EINVAL; + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &display); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &remote); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &remote_user); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + dbus_message_iter_get_basic(&iter, &remote_host); + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) + return -EINVAL; + + r = bus_parse_strv_iter(&iter, &controllers); + if (r < 0) + return -EINVAL; + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) { + r = -EINVAL; + goto fail; + } + + r = bus_parse_strv_iter(&iter, &reset_controllers); + if (r < 0) + goto fail; + + if (!dbus_message_iter_next(&iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) { + r = -EINVAL; + goto fail; + } + + dbus_message_iter_get_basic(&iter, &kill_processes); + + r = manager_add_user_by_uid(m, uid, &user); + if (r < 0) + goto fail; + + audit_session_from_pid(leader, &audit_id); + + if (audit_id > 0) + asprintf(&id, "%lu", (unsigned long) audit_id); + else + asprintf(&id, "c%lu", ++m->session_counter); + + if (!id) { + r = -ENOMEM; + goto fail; + } + + if (hashmap_get(m->sessions, id)) { + r = -EEXIST; + goto fail; + } + + r = manager_add_session(m, user, id, &session); + free(id); + if (r < 0) + goto fail; + + session->leader = leader; + session->audit_id = audit_id; + session->type = t; + session->remote = remote; + session->controllers = controllers; + session->reset_controllers = reset_controllers; + session->kill_processes = kill_processes; + session->vtnr = vtnr; + + controllers = reset_controllers = NULL; + + if (!isempty(tty)) { + session->tty = strdup(tty); + if (!session->tty) { + r = -ENOMEM; + goto fail; + } + } + + if (!isempty(display)) { + session->display = strdup(display); + if (!session->display) { + r = -ENOMEM; + goto fail; + } + } + + if (!isempty(remote_user)) { + session->remote_user = strdup(remote_user); + if (!session->remote_user) { + r = -ENOMEM; + goto fail; + } + } + + if (!isempty(remote_host)) { + session->remote_host = strdup(remote_host); + if (!session->remote_host) { + r = -ENOMEM; + goto fail; + } + } + + if (!isempty(service)) { + session->service = strdup(service); + if (!session->service) { + r = -ENOMEM; + goto fail; + } + } + + if (pipe(pipe_fds) < 0) { + r = -errno; + goto fail; + } + + session->pipe_fd = pipe_fds[1]; + pipe_fds[1] = -1; + + if (s) { + r = seat_attach_session(s, session); + if (r < 0) + goto fail; + } + + r = session_start(session); + if (r < 0) + goto fail; + + reply = dbus_message_new_method_return(message); + if (!reply) { + r = -ENOMEM; + goto fail; + } + + p = session_bus_path(session); + if (!p) { + r = -ENOMEM; + goto fail; + } + + b = dbus_message_append_args( + reply, + DBUS_TYPE_STRING, &session->id, + DBUS_TYPE_OBJECT_PATH, &p, + DBUS_TYPE_STRING, &session->user->runtime_path, + DBUS_TYPE_UNIX_FD, &pipe_fds[0], + DBUS_TYPE_INVALID); + free(p); + + if (!b) { + r = -ENOMEM; + goto fail; + } + + close_nointr_nofail(pipe_fds[0]); + *_reply = reply; + + return 0; + +fail: + strv_free(controllers); + strv_free(reset_controllers); + + if (session) + session_add_to_gc_queue(session); + + if (user) + user_add_to_gc_queue(user); + + close_pipe(pipe_fds); + + if (reply) + dbus_message_unref(reply); + + return r; +} + static DBusHandlerResult manager_message_handler( DBusConnection *connection, DBusMessage *message, @@ -171,7 +454,6 @@ static DBusHandlerResult manager_message_handler( const BusProperty properties[] = { { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path }, { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers }, - { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers }, { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts }, { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users }, { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users }, @@ -425,6 +707,15 @@ static DBusHandlerResult manager_message_handler( if (!dbus_message_iter_close_container(&iter, &sub)) goto oom; + } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) { + + r = bus_manager_create_session(m, message, &reply); + if (r == -ENOMEM) + goto oom; + + if (r < 0) + return bus_send_error_reply(connection, message, &error, r); + } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) { const char *name; Session *session; |