#include <errno.h>
#include <string.h>
#include <unistd.h>
+#include <pwd.h>
#include "logind.h"
#include "dbus-common.h"
#include "strv.h"
+#include "polkit.h"
#define BUS_MANAGER_INTERFACE \
" <interface name=\"org.freedesktop.login1.Manager\">\n" \
" <method name=\"TerminateSeat\">\n" \
" <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
" </method>\n" \
+ " <method name=\"SetUserLinger\">\n" \
+ " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
+ " <method name=\"AttachDevice\">\n" \
+ " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
+ " </method>\n" \
" <signal name=\"SessionNew\">\n" \
" <arg name=\"id\" type=\"s\"/>\n" \
" <arg name=\"path\" type=\"o\"/>\n" \
return r;
}
+static bool device_has_tag(struct udev_device *d, const char *tag) {
+ struct udev_list_entry *first, *item;
+
+ assert(d);
+ assert(tag);
+
+ first = udev_device_get_tags_list_entry(d);
+ udev_list_entry_foreach(item, first)
+ if (streq(udev_list_entry_get_name(item), tag))
+ return true;
+
+ return false;
+}
+
+static int attach_device(Manager *m, const char *seat, const char *sysfs) {
+ struct udev_device *d;
+ char *rule = NULL, *file = NULL;
+ const char *id_for_seat;
+ int r;
+
+ assert(m);
+ assert(seat);
+ assert(sysfs);
+
+ d = udev_device_new_from_syspath(m->udev, sysfs);
+ if (!d)
+ return -ENODEV;
+
+ if (!device_has_tag(d, "seat")) {
+ r = -ENODEV;
+ goto finish;
+ }
+
+ id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
+ if (!id_for_seat) {
+ r = -ENODEV;
+ goto finish;
+ }
+
+ if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ mkdir_p("/etc/udev/rules.d", 0755);
+ r = write_one_line_file(file, rule);
+
+finish:
+ free(rule);
+ free(file);
+
+ if (d)
+ udev_device_unref(d);
+
+ return r;
+}
+
static DBusHandlerResult manager_message_handler(
DBusConnection *connection,
DBusMessage *message,
if (!reply)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
+ uint32_t uid;
+ struct passwd *pw;
+ dbus_bool_t b, interactive;
+ char *path;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &uid,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ errno = 0;
+ pw = getpwuid(uid);
+ if (!pw)
+ return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
+
+ r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ path = strappend("/var/lib/systemd/linger/", pw->pw_name);
+ if (!path)
+ goto oom;
+
+ if (b) {
+ User *u;
+
+ r = touch(path);
+ free(path);
+
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ if (manager_add_user_by_uid(m, uid, &u) >= 0)
+ user_start(u);
+
+ } else {
+ User *u;
+
+ r = unlink(path);
+ free(path);
+
+ if (r < 0 && errno != ENOENT)
+ return bus_send_error_reply(connection, message, &error, -errno);
+
+ u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+ if (u)
+ user_add_to_gc_queue(u);
+ }
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
+ const char *sysfs, *seat;
+ dbus_bool_t interactive;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &seat,
+ DBUS_TYPE_STRING, &sysfs,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ r = attach_device(m, seat, sysfs);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
} else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
char *introspection = NULL;
FILE *f;
~ianmdlvl / elogind.git / blobdiff