X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind-dbus.c;h=d238d6c6f9c178761908073888045861f1894854;hp=5245c889803b843eab1f02201d47306e894f8269;hb=c73bfb05cb09992935ede3247a1cc4726e54a44d;hpb=e19b8719a54c343372e16b462c27f1e84c987b85 diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c index 5245c8898..d238d6c6f 100644 --- a/src/login/logind-dbus.c +++ b/src/login/logind-dbus.c @@ -28,7 +28,7 @@ #include "strv.h" #include "mkdir.h" #include "path-util.h" -#include "special.h" +// #include "special.h" #include "sleep-config.h" #include "fileio-label.h" #include "unit-name.h" @@ -158,7 +158,7 @@ static int property_get_idle_since_hint( sd_bus_error *error) { Manager *m = userdata; - dual_timestamp t; + dual_timestamp t = DUAL_TIMESTAMP_NULL; assert(bus); assert(reply); @@ -243,6 +243,24 @@ static int property_get_scheduled_shutdown( static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction); +static int property_get_docked( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + + Manager *m = userdata; + + assert(bus); + assert(reply); + assert(m); + + return sd_bus_message_append(reply, "b", manager_is_docked_or_external_displays(m)); +} + static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_free_ char *p = NULL; Manager *m = userdata; @@ -671,45 +689,26 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus return r; } - manager_get_session_by_pid(m, leader, &session); - if (session) { - _cleanup_free_ char *path = NULL; - _cleanup_close_ int fifo_fd = -1; - - /* Session already exists, client is probably - * something like "su" which changes uid but is still - * the same session */ - - fifo_fd = session_create_fifo(session); - if (fifo_fd < 0) - return fifo_fd; - - path = session_bus_path(session); - if (!path) - return -ENOMEM; - - log_debug("Sending reply about an existing session: " - "id=%s object_path=%s uid=%u runtime_path=%s " - "session_fd=%d seat=%s vtnr=%u", - session->id, - path, - (uint32_t) session->user->uid, - session->user->runtime_path, - fifo_fd, - session->seat ? session->seat->id : "", - (uint32_t) session->vtnr); - - return sd_bus_reply_method_return( - message, "soshusub", - session->id, - path, - session->user->runtime_path, - fifo_fd, - (uint32_t) session->user->uid, - session->seat ? session->seat->id : "", - (uint32_t) session->vtnr, - true); - } + r = manager_get_session_by_pid(m, leader, NULL); + if (r > 0) + return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already running in a session"); + + /* + * Old gdm and lightdm start the user-session on the same VT as + * the greeter session. But they destroy the greeter session + * after the user-session and want the user-session to take + * over the VT. We need to support this for + * backwards-compatibility, so make sure we allow new sessions + * on a VT that a greeter is running on. Furthermore, to allow + * re-logins, we have to allow a greeter to take over a used VT for + * the exact same reasons. + */ + if (c != SESSION_GREETER && + vtnr > 0 && + vtnr < m->seat0->position_count && + m->seat0->positions[vtnr] && + m->seat0->positions[vtnr]->class != SESSION_GREETER) + return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session"); audit_session_from_pid(leader, &audit_id); if (audit_id > 0) { @@ -825,8 +824,6 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus if (r < 0) goto fail; - session_save(session); - return 1; fail: @@ -860,6 +857,8 @@ static int method_release_session(sd_bus_message *message, void *userdata, sd_bu if (r < 0) return r; + session_add_to_gc_queue(session); + return sd_bus_reply_method_return(message, NULL); } @@ -1182,7 +1181,7 @@ static int trigger_device(Manager *m, struct udev_device *d) { if (!t) return -ENOMEM; - write_string_file(t, "change"); + write_string_file(t, "change", WRITE_STRING_FILE_CREATE); } return 0; @@ -1434,6 +1433,28 @@ int manager_set_lid_switch_ignore(Manager *m, usec_t until) { return r; } +static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { + + static const char * const signal_name[_INHIBIT_WHAT_MAX] = { + [INHIBIT_SHUTDOWN] = "PrepareForShutdown", + [INHIBIT_SLEEP] = "PrepareForSleep" + }; + + int active = _active; + + assert(m); + assert(w >= 0); + assert(w < _INHIBIT_WHAT_MAX); + assert(signal_name[w]); + + return sd_bus_emit_signal(m->bus, + "/org/freedesktop/login1", + "org.freedesktop.login1.Manager", + signal_name[w], + "b", + active); +} + static int execute_shutdown_or_sleep( Manager *m, InhibitWhat w, @@ -1466,7 +1487,7 @@ static int execute_shutdown_or_sleep( &reply, "ss", NULL, "replace-irreversibly"); #else - r = shutdown_or_sleep(action); + r = shutdown_or_sleep(m, action); #endif // 0 if (r < 0) return r; @@ -1487,31 +1508,35 @@ static int execute_shutdown_or_sleep( m->action_what = w; #endif // 0 + if (w == INHIBIT_SLEEP) + /* And we're back. */ + send_prepare_for(m, w, false); + + m->action_what = 0; + /* Make sure the lid switch is ignored for a while */ manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + m->holdoff_timeout_usec); return 0; } -static int manager_inhibit_timeout_handler( - sd_event_source *s, - uint64_t usec, - void *userdata) { +int manager_dispatch_delayed(Manager *manager, bool timeout) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; Inhibitor *offending = NULL; - Manager *manager = userdata; int r; assert(manager); - assert(manager->inhibit_timeout_source == s); - if (manager->action_what == 0) + if (manager->action_what == 0 && manager->pending_action == 0) return 0; if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) { _cleanup_free_ char *comm = NULL, *u = NULL; + if (!timeout) + return 0; + (void) get_process_comm(offending->pid, &comm); u = uid_to_name(offending->uid); @@ -1527,9 +1552,25 @@ static int manager_inhibit_timeout_handler( manager->pending_action = HANDLE_IGNORE; manager->action_what = 0; + return r; } - return 0; + return 1; +} + +static int manager_inhibit_timeout_handler( + sd_event_source *s, + uint64_t usec, + void *userdata) { + + Manager *manager = userdata; + int r; + + assert(manager); + assert(manager->inhibit_timeout_source == s); + + r = manager_dispatch_delayed(manager, true); + return (r < 0) ? r : 0; } static int delay_shutdown_or_sleep( @@ -1567,28 +1608,6 @@ static int delay_shutdown_or_sleep( return 0; } -static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { - - static const char * const signal_name[_INHIBIT_WHAT_MAX] = { - [INHIBIT_SHUTDOWN] = "PrepareForShutdown", - [INHIBIT_SLEEP] = "PrepareForSleep" - }; - - int active = _active; - - assert(m); - assert(w >= 0); - assert(w < _INHIBIT_WHAT_MAX); - assert(signal_name[w]); - - return sd_bus_emit_signal(m->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - signal_name[w], - "b", - active); -} - int bus_manager_shutdown_or_sleep_now_or_later( Manager *m, HandleAction action, @@ -1782,7 +1801,7 @@ static int nologin_timeout_handler( log_info("Creating /run/nologin, blocking further logins..."); - r = write_string_file_atomic("/run/nologin", "System is going down."); + r = write_string_file("/run/nologin", "System is going down.", WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC); if (r < 0) log_error_errno(r, "Failed to create /run/nologin: %m"); else @@ -1990,10 +2009,14 @@ static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userd m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source); m->wall_message_timeout_source = sd_event_source_unref(m->wall_message_timeout_source); m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source); - free(m->scheduled_shutdown_type); - m->scheduled_shutdown_type = NULL; + m->scheduled_shutdown_type = mfree(m->scheduled_shutdown_type); m->scheduled_shutdown_timeout = 0; + if (m->unlink_nologin) { + (void) unlink("/run/nologin"); + m->unlink_nologin = false; + } + if (cancelled) { _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; const char *tty = NULL; @@ -2476,6 +2499,7 @@ const sd_bus_vtable manager_vtable[] = { SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0), SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0), SD_BUS_PROPERTY("ScheduledShutdown", "(st)", property_get_scheduled_shutdown, 0, 0), + SD_BUS_PROPERTY("Docked", "b", property_get_docked, 0, 0), SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), @@ -2505,8 +2529,6 @@ const sd_bus_vtable manager_vtable[] = { SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ScheduleShutdown", "st", NULL, method_schedule_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CancelScheduledShutdown", NULL, "b", method_cancel_scheduled_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), @@ -2514,6 +2536,8 @@ const sd_bus_vtable manager_vtable[] = { SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ScheduleShutdown", "st", NULL, method_schedule_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("CancelScheduledShutdown", NULL, "b", method_cancel_scheduled_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CanRebootToFirmwareSetup", NULL, "s", method_can_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("SetRebootToFirmwareSetup", "b", NULL, method_set_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED), @@ -2592,6 +2616,7 @@ int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *err session_jobs_reply(session, unit, result); session_save(session); + user_save(session->user); session_add_to_gc_queue(session); } @@ -2613,7 +2638,6 @@ int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *err return 0; } -#endif // 0 int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { const char *path, *unit; @@ -2702,6 +2726,7 @@ int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error return 0; } +#endif // 0 int manager_send_changed(Manager *manager, const char *property, ...) { char **l;